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0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/file.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FILE
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include "strtoofft.h"
#include "urldata.h"
#include <curl/curl.h>
#include "progress.h"
#include "sendf.h"
#include "escape.h"
#include "file.h"
#include "speedcheck.h"
#include "getinfo.h"
#include "transfer.h"
#include "url.h"
#include "parsedate.h" /* for the week day and month names */
#include "warnless.h"
#include "curl_range.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if defined(WIN32) || defined(MSDOS) || defined(__EMX__)
#define DOS_FILESYSTEM 1
#endif
#ifdef OPEN_NEEDS_ARG3
# define open_readonly(p,f) open((p),(f),(0))
#else
# define open_readonly(p,f) open((p),(f))
#endif
/*
* Forward declarations.
*/
static CURLcode file_do(struct Curl_easy *data, bool *done);
static CURLcode file_done(struct Curl_easy *data,
CURLcode status, bool premature);
static CURLcode file_connect(struct Curl_easy *data, bool *done);
static CURLcode file_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection);
static CURLcode file_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
/*
* FILE scheme handler.
*/
const struct Curl_handler Curl_handler_file = {
"FILE", /* scheme */
file_setup_connection, /* setup_connection */
file_do, /* do_it */
file_done, /* done */
ZERO_NULL, /* do_more */
file_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
file_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
0, /* defport */
CURLPROTO_FILE, /* protocol */
CURLPROTO_FILE, /* family */
PROTOPT_NONETWORK | PROTOPT_NOURLQUERY /* flags */
};
static CURLcode file_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
(void)conn;
/* allocate the FILE specific struct */
data->req.p.file = calloc(1, sizeof(struct FILEPROTO));
if(!data->req.p.file)
return CURLE_OUT_OF_MEMORY;
return CURLE_OK;
}
/*
* file_connect() gets called from Curl_protocol_connect() to allow us to
* do protocol-specific actions at connect-time. We emulate a
* connect-then-transfer protocol and "connect" to the file here
*/
static CURLcode file_connect(struct Curl_easy *data, bool *done)
{
char *real_path;
struct FILEPROTO *file = data->req.p.file;
int fd;
#ifdef DOS_FILESYSTEM
size_t i;
char *actual_path;
#endif
size_t real_path_len;
CURLcode result = Curl_urldecode(data, data->state.up.path, 0, &real_path,
&real_path_len, REJECT_ZERO);
if(result)
return result;
#ifdef DOS_FILESYSTEM
/* If the first character is a slash, and there's
something that looks like a drive at the beginning of
the path, skip the slash. If we remove the initial
slash in all cases, paths without drive letters end up
relative to the current directory which isn't how
browsers work.
Some browsers accept | instead of : as the drive letter
separator, so we do too.
On other platforms, we need the slash to indicate an
absolute pathname. On Windows, absolute paths start
with a drive letter.
*/
actual_path = real_path;
if((actual_path[0] == '/') &&
actual_path[1] &&
(actual_path[2] == ':' || actual_path[2] == '|')) {
actual_path[2] = ':';
actual_path++;
real_path_len--;
}
/* change path separators from '/' to '\\' for DOS, Windows and OS/2 */
for(i = 0; i < real_path_len; ++i)
if(actual_path[i] == '/')
actual_path[i] = '\\';
else if(!actual_path[i]) { /* binary zero */
Curl_safefree(real_path);
return CURLE_URL_MALFORMAT;
}
fd = open_readonly(actual_path, O_RDONLY|O_BINARY);
file->path = actual_path;
#else
if(memchr(real_path, 0, real_path_len)) {
/* binary zeroes indicate foul play */
Curl_safefree(real_path);
return CURLE_URL_MALFORMAT;
}
fd = open_readonly(real_path, O_RDONLY);
file->path = real_path;
#endif
file->freepath = real_path; /* free this when done */
file->fd = fd;
if(!data->set.upload && (fd == -1)) {
failf(data, "Couldn't open file %s", data->state.up.path);
file_done(data, CURLE_FILE_COULDNT_READ_FILE, FALSE);
return CURLE_FILE_COULDNT_READ_FILE;
}
*done = TRUE;
return CURLE_OK;
}
static CURLcode file_done(struct Curl_easy *data,
CURLcode status, bool premature)
{
struct FILEPROTO *file = data->req.p.file;
(void)status; /* not used */
(void)premature; /* not used */
if(file) {
Curl_safefree(file->freepath);
file->path = NULL;
if(file->fd != -1)
close(file->fd);
file->fd = -1;
}
return CURLE_OK;
}
static CURLcode file_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection)
{
(void)dead_connection; /* not used */
(void)conn;
return file_done(data, 0, 0);
}
#ifdef DOS_FILESYSTEM
#define DIRSEP '\\'
#else
#define DIRSEP '/'
#endif
static CURLcode file_upload(struct Curl_easy *data)
{
struct FILEPROTO *file = data->req.p.file;
const char *dir = strchr(file->path, DIRSEP);
int fd;
int mode;
CURLcode result = CURLE_OK;
char *buf = data->state.buffer;
curl_off_t bytecount = 0;
struct_stat file_stat;
const char *buf2;
/*
* Since FILE: doesn't do the full init, we need to provide some extra
* assignments here.
*/
data->req.upload_fromhere = buf;
if(!dir)
return CURLE_FILE_COULDNT_READ_FILE; /* fix: better error code */
if(!dir[1])
return CURLE_FILE_COULDNT_READ_FILE; /* fix: better error code */
#ifdef O_BINARY
#define MODE_DEFAULT O_WRONLY|O_CREAT|O_BINARY
#else
#define MODE_DEFAULT O_WRONLY|O_CREAT
#endif
if(data->state.resume_from)
mode = MODE_DEFAULT|O_APPEND;
else
mode = MODE_DEFAULT|O_TRUNC;
fd = open(file->path, mode, data->set.new_file_perms);
if(fd < 0) {
failf(data, "Can't open %s for writing", file->path);
return CURLE_WRITE_ERROR;
}
if(-1 != data->state.infilesize)
/* known size of data to "upload" */
Curl_pgrsSetUploadSize(data, data->state.infilesize);
/* treat the negative resume offset value as the case of "-" */
if(data->state.resume_from < 0) {
if(fstat(fd, &file_stat)) {
close(fd);
failf(data, "Can't get the size of %s", file->path);
return CURLE_WRITE_ERROR;
}
data->state.resume_from = (curl_off_t)file_stat.st_size;
}
while(!result) {
size_t nread;
size_t nwrite;
size_t readcount;
result = Curl_fillreadbuffer(data, data->set.buffer_size, &readcount);
if(result)
break;
if(!readcount)
break;
nread = readcount;
/*skip bytes before resume point*/
if(data->state.resume_from) {
if((curl_off_t)nread <= data->state.resume_from) {
data->state.resume_from -= nread;
nread = 0;
buf2 = buf;
}
else {
buf2 = buf + data->state.resume_from;
nread -= (size_t)data->state.resume_from;
data->state.resume_from = 0;
}
}
else
buf2 = buf;
/* write the data to the target */
nwrite = write(fd, buf2, nread);
if(nwrite != nread) {
result = CURLE_SEND_ERROR;
break;
}
bytecount += nread;
Curl_pgrsSetUploadCounter(data, bytecount);
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
}
if(!result && Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
close(fd);
return result;
}
/*
* file_do() is the protocol-specific function for the do-phase, separated
* from the connect-phase above. Other protocols merely setup the transfer in
* the do-phase, to have it done in the main transfer loop but since some
* platforms we support don't allow select()ing etc on file handles (as
* opposed to sockets) we instead perform the whole do-operation in this
* function.
*/
static CURLcode file_do(struct Curl_easy *data, bool *done)
{
/* This implementation ignores the host name in conformance with
RFC 1738. Only local files (reachable via the standard file system)
are supported. This means that files on remotely mounted directories
(via NFS, Samba, NT sharing) can be accessed through a file:// URL
*/
CURLcode result = CURLE_OK;
struct_stat statbuf; /* struct_stat instead of struct stat just to allow the
Windows version to have a different struct without
having to redefine the simple word 'stat' */
curl_off_t expected_size = -1;
bool size_known;
bool fstated = FALSE;
char *buf = data->state.buffer;
curl_off_t bytecount = 0;
int fd;
struct FILEPROTO *file;
*done = TRUE; /* unconditionally */
Curl_pgrsStartNow(data);
if(data->set.upload)
return file_upload(data);
file = data->req.p.file;
/* get the fd from the connection phase */
fd = file->fd;
/* VMS: This only works reliable for STREAMLF files */
if(-1 != fstat(fd, &statbuf)) {
if(!S_ISDIR(statbuf.st_mode))
expected_size = statbuf.st_size;
/* and store the modification time */
data->info.filetime = statbuf.st_mtime;
fstated = TRUE;
}
if(fstated && !data->state.range && data->set.timecondition) {
if(!Curl_meets_timecondition(data, data->info.filetime)) {
*done = TRUE;
return CURLE_OK;
}
}
if(fstated) {
time_t filetime;
struct tm buffer;
const struct tm *tm = &buffer;
char header[80];
int headerlen;
char accept_ranges[24]= { "Accept-ranges: bytes\r\n" };
if(expected_size >= 0) {
headerlen = msnprintf(header, sizeof(header),
"Content-Length: %" CURL_FORMAT_CURL_OFF_T "\r\n",
expected_size);
result = Curl_client_write(data, CLIENTWRITE_HEADER, header, headerlen);
if(result)
return result;
result = Curl_client_write(data, CLIENTWRITE_HEADER,
accept_ranges, strlen(accept_ranges));
if(result != CURLE_OK)
return result;
}
filetime = (time_t)statbuf.st_mtime;
result = Curl_gmtime(filetime, &buffer);
if(result)
return result;
/* format: "Tue, 15 Nov 1994 12:45:26 GMT" */
headerlen = msnprintf(header, sizeof(header),
"Last-Modified: %s, %02d %s %4d %02d:%02d:%02d GMT\r\n%s",
Curl_wkday[tm->tm_wday?tm->tm_wday-1:6],
tm->tm_mday,
Curl_month[tm->tm_mon],
tm->tm_year + 1900,
tm->tm_hour,
tm->tm_min,
tm->tm_sec,
data->set.opt_no_body ? "": "\r\n");
result = Curl_client_write(data, CLIENTWRITE_HEADER, header, headerlen);
if(result)
return result;
/* set the file size to make it available post transfer */
Curl_pgrsSetDownloadSize(data, expected_size);
if(data->set.opt_no_body)
return result;
}
/* Check whether file range has been specified */
result = Curl_range(data);
if(result)
return result;
/* Adjust the start offset in case we want to get the N last bytes
* of the stream if the filesize could be determined */
if(data->state.resume_from < 0) {
if(!fstated) {
failf(data, "Can't get the size of file.");
return CURLE_READ_ERROR;
}
data->state.resume_from += (curl_off_t)statbuf.st_size;
}
if(data->state.resume_from > 0) {
/* We check explicitly if we have a start offset, because
* expected_size may be -1 if we don't know how large the file is,
* in which case we should not adjust it. */
if(data->state.resume_from <= expected_size)
expected_size -= data->state.resume_from;
else {
failf(data, "failed to resume file:// transfer");
return CURLE_BAD_DOWNLOAD_RESUME;
}
}
/* A high water mark has been specified so we obey... */
if(data->req.maxdownload > 0)
expected_size = data->req.maxdownload;
if(!fstated || (expected_size <= 0))
size_known = FALSE;
else
size_known = TRUE;
/* The following is a shortcut implementation of file reading
this is both more efficient than the former call to download() and
it avoids problems with select() and recv() on file descriptors
in Winsock */
if(size_known)
Curl_pgrsSetDownloadSize(data, expected_size);
if(data->state.resume_from) {
if(data->state.resume_from !=
lseek(fd, data->state.resume_from, SEEK_SET))
return CURLE_BAD_DOWNLOAD_RESUME;
}
Curl_pgrsTime(data, TIMER_STARTTRANSFER);
while(!result) {
ssize_t nread;
/* Don't fill a whole buffer if we want less than all data */
size_t bytestoread;
if(size_known) {
bytestoread = (expected_size < data->set.buffer_size) ?
curlx_sotouz(expected_size) : (size_t)data->set.buffer_size;
}
else
bytestoread = data->set.buffer_size-1;
nread = read(fd, buf, bytestoread);
if(nread > 0)
buf[nread] = 0;
if(nread <= 0 || (size_known && (expected_size == 0)))
break;
bytecount += nread;
if(size_known)
expected_size -= nread;
result = Curl_client_write(data, CLIENTWRITE_BODY, buf, nread);
if(result)
return result;
Curl_pgrsSetDownloadCounter(data, bytecount);
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
}
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
return result;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/nwos.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef NETWARE /* Novell NetWare */
#ifdef __NOVELL_LIBC__
/* For native LibC-based NLM we need to do nothing. */
int netware_init(void)
{
return 0;
}
#else /* __NOVELL_LIBC__ */
/* For native CLib-based NLM we need to initialize the LONG namespace. */
#include <nwnspace.h>
#include <nwthread.h>
#include <nwadv.h>
/* Make the CLIB Ctx stuff link */
#include <netdb.h>
NETDB_DEFINE_CONTEXT
/* Make the CLIB Inet stuff link */
#include <netinet/in.h>
#include <arpa/inet.h>
NETINET_DEFINE_CONTEXT
int netware_init(void)
{
int rc = 0;
unsigned int myHandle = GetNLMHandle();
/* import UnAugmentAsterisk dynamically for NW4.x compatibility */
void (*pUnAugmentAsterisk)(int) = (void(*)(int))
ImportSymbol(myHandle, "UnAugmentAsterisk");
/* import UseAccurateCaseForPaths dynamically for NW3.x compatibility */
void (*pUseAccurateCaseForPaths)(int) = (void(*)(int))
ImportSymbol(myHandle, "UseAccurateCaseForPaths");
if(pUnAugmentAsterisk)
pUnAugmentAsterisk(1);
if(pUseAccurateCaseForPaths)
pUseAccurateCaseForPaths(1);
UnimportSymbol(myHandle, "UnAugmentAsterisk");
UnimportSymbol(myHandle, "UseAccurateCaseForPaths");
/* set long name space */
if((SetCurrentNameSpace(4) == 255)) {
rc = 1;
}
if((SetTargetNameSpace(4) == 255)) {
rc = rc + 2;
}
return rc;
}
/* dummy function to satisfy newer prelude */
int __init_environment(void)
{
return 0;
}
/* dummy function to satisfy newer prelude */
int __deinit_environment(void)
{
return 0;
}
#endif /* __NOVELL_LIBC__ */
#endif /* NETWARE */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/content_encoding.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
#include <curl/curl.h>
#include <stddef.h>
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#ifdef HAVE_BROTLI
#include <brotli/decode.h>
#endif
#ifdef HAVE_ZSTD
#include <zstd.h>
#endif
#include "sendf.h"
#include "http.h"
#include "content_encoding.h"
#include "strdup.h"
#include "strcase.h"
#include "curl_memory.h"
#include "memdebug.h"
#define CONTENT_ENCODING_DEFAULT "identity"
#ifndef CURL_DISABLE_HTTP
#define DSIZ CURL_MAX_WRITE_SIZE /* buffer size for decompressed data */
#ifdef HAVE_LIBZ
/* Comment this out if zlib is always going to be at least ver. 1.2.0.4
(doing so will reduce code size slightly). */
#define OLD_ZLIB_SUPPORT 1
#define GZIP_MAGIC_0 0x1f
#define GZIP_MAGIC_1 0x8b
/* gzip flag byte */
#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
#define HEAD_CRC 0x02 /* bit 1 set: header CRC present */
#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
#define COMMENT 0x10 /* bit 4 set: file comment present */
#define RESERVED 0xE0 /* bits 5..7: reserved */
typedef enum {
ZLIB_UNINIT, /* uninitialized */
ZLIB_INIT, /* initialized */
ZLIB_INFLATING, /* inflating started. */
ZLIB_EXTERNAL_TRAILER, /* reading external trailer */
ZLIB_GZIP_HEADER, /* reading gzip header */
ZLIB_GZIP_INFLATING, /* inflating gzip stream */
ZLIB_INIT_GZIP /* initialized in transparent gzip mode */
} zlibInitState;
/* Writer parameters. */
struct zlib_params {
zlibInitState zlib_init; /* zlib init state */
uInt trailerlen; /* Remaining trailer byte count. */
z_stream z; /* State structure for zlib. */
};
static voidpf
zalloc_cb(voidpf opaque, unsigned int items, unsigned int size)
{
(void) opaque;
/* not a typo, keep it calloc() */
return (voidpf) calloc(items, size);
}
static void
zfree_cb(voidpf opaque, voidpf ptr)
{
(void) opaque;
free(ptr);
}
static CURLcode
process_zlib_error(struct Curl_easy *data, z_stream *z)
{
if(z->msg)
failf(data, "Error while processing content unencoding: %s",
z->msg);
else
failf(data, "Error while processing content unencoding: "
"Unknown failure within decompression software.");
return CURLE_BAD_CONTENT_ENCODING;
}
static CURLcode
exit_zlib(struct Curl_easy *data,
z_stream *z, zlibInitState *zlib_init, CURLcode result)
{
if(*zlib_init == ZLIB_GZIP_HEADER)
Curl_safefree(z->next_in);
if(*zlib_init != ZLIB_UNINIT) {
if(inflateEnd(z) != Z_OK && result == CURLE_OK)
result = process_zlib_error(data, z);
*zlib_init = ZLIB_UNINIT;
}
return result;
}
static CURLcode process_trailer(struct Curl_easy *data,
struct zlib_params *zp)
{
z_stream *z = &zp->z;
CURLcode result = CURLE_OK;
uInt len = z->avail_in < zp->trailerlen? z->avail_in: zp->trailerlen;
/* Consume expected trailer bytes. Terminate stream if exhausted.
Issue an error if unexpected bytes follow. */
zp->trailerlen -= len;
z->avail_in -= len;
z->next_in += len;
if(z->avail_in)
result = CURLE_WRITE_ERROR;
if(result || !zp->trailerlen)
result = exit_zlib(data, z, &zp->zlib_init, result);
else {
/* Only occurs for gzip with zlib < 1.2.0.4 or raw deflate. */
zp->zlib_init = ZLIB_EXTERNAL_TRAILER;
}
return result;
}
static CURLcode inflate_stream(struct Curl_easy *data,
struct contenc_writer *writer,
zlibInitState started)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
uInt nread = z->avail_in;
Bytef *orig_in = z->next_in;
bool done = FALSE;
CURLcode result = CURLE_OK; /* Curl_client_write status */
char *decomp; /* Put the decompressed data here. */
/* Check state. */
if(zp->zlib_init != ZLIB_INIT &&
zp->zlib_init != ZLIB_INFLATING &&
zp->zlib_init != ZLIB_INIT_GZIP &&
zp->zlib_init != ZLIB_GZIP_INFLATING)
return exit_zlib(data, z, &zp->zlib_init, CURLE_WRITE_ERROR);
/* Dynamically allocate a buffer for decompression because it's uncommonly
large to hold on the stack */
decomp = malloc(DSIZ);
if(!decomp)
return exit_zlib(data, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);
/* because the buffer size is fixed, iteratively decompress and transfer to
the client via downstream_write function. */
while(!done) {
int status; /* zlib status */
done = TRUE;
/* (re)set buffer for decompressed output for every iteration */
z->next_out = (Bytef *) decomp;
z->avail_out = DSIZ;
#ifdef Z_BLOCK
/* Z_BLOCK is only available in zlib ver. >= 1.2.0.5 */
status = inflate(z, Z_BLOCK);
#else
/* fallback for zlib ver. < 1.2.0.5 */
status = inflate(z, Z_SYNC_FLUSH);
#endif
/* Flush output data if some. */
if(z->avail_out != DSIZ) {
if(status == Z_OK || status == Z_STREAM_END) {
zp->zlib_init = started; /* Data started. */
result = Curl_unencode_write(data, writer->downstream, decomp,
DSIZ - z->avail_out);
if(result) {
exit_zlib(data, z, &zp->zlib_init, result);
break;
}
}
}
/* Dispatch by inflate() status. */
switch(status) {
case Z_OK:
/* Always loop: there may be unflushed latched data in zlib state. */
done = FALSE;
break;
case Z_BUF_ERROR:
/* No more data to flush: just exit loop. */
break;
case Z_STREAM_END:
result = process_trailer(data, zp);
break;
case Z_DATA_ERROR:
/* some servers seem to not generate zlib headers, so this is an attempt
to fix and continue anyway */
if(zp->zlib_init == ZLIB_INIT) {
/* Do not use inflateReset2(): only available since zlib 1.2.3.4. */
(void) inflateEnd(z); /* don't care about the return code */
if(inflateInit2(z, -MAX_WBITS) == Z_OK) {
z->next_in = orig_in;
z->avail_in = nread;
zp->zlib_init = ZLIB_INFLATING;
zp->trailerlen = 4; /* Tolerate up to 4 unknown trailer bytes. */
done = FALSE;
break;
}
zp->zlib_init = ZLIB_UNINIT; /* inflateEnd() already called. */
}
result = exit_zlib(data, z, &zp->zlib_init, process_zlib_error(data, z));
break;
default:
result = exit_zlib(data, z, &zp->zlib_init, process_zlib_error(data, z));
break;
}
}
free(decomp);
/* We're about to leave this call so the `nread' data bytes won't be seen
again. If we are in a state that would wrongly allow restart in raw mode
at the next call, assume output has already started. */
if(nread && zp->zlib_init == ZLIB_INIT)
zp->zlib_init = started; /* Cannot restart anymore. */
return result;
}
/* Deflate handler. */
static CURLcode deflate_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
if(!writer->downstream)
return CURLE_WRITE_ERROR;
/* Initialize zlib */
z->zalloc = (alloc_func) zalloc_cb;
z->zfree = (free_func) zfree_cb;
if(inflateInit(z) != Z_OK)
return process_zlib_error(data, z);
zp->zlib_init = ZLIB_INIT;
return CURLE_OK;
}
static CURLcode deflate_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
/* Set the compressed input when this function is called */
z->next_in = (Bytef *) buf;
z->avail_in = (uInt) nbytes;
if(zp->zlib_init == ZLIB_EXTERNAL_TRAILER)
return process_trailer(data, zp);
/* Now uncompress the data */
return inflate_stream(data, writer, ZLIB_INFLATING);
}
static void deflate_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
exit_zlib(data, z, &zp->zlib_init, CURLE_OK);
}
static const struct content_encoding deflate_encoding = {
"deflate",
NULL,
deflate_init_writer,
deflate_unencode_write,
deflate_close_writer,
sizeof(struct zlib_params)
};
/* Gzip handler. */
static CURLcode gzip_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
if(!writer->downstream)
return CURLE_WRITE_ERROR;
/* Initialize zlib */
z->zalloc = (alloc_func) zalloc_cb;
z->zfree = (free_func) zfree_cb;
if(strcmp(zlibVersion(), "1.2.0.4") >= 0) {
/* zlib ver. >= 1.2.0.4 supports transparent gzip decompressing */
if(inflateInit2(z, MAX_WBITS + 32) != Z_OK) {
return process_zlib_error(data, z);
}
zp->zlib_init = ZLIB_INIT_GZIP; /* Transparent gzip decompress state */
}
else {
/* we must parse the gzip header and trailer ourselves */
if(inflateInit2(z, -MAX_WBITS) != Z_OK) {
return process_zlib_error(data, z);
}
zp->trailerlen = 8; /* A CRC-32 and a 32-bit input size (RFC 1952, 2.2) */
zp->zlib_init = ZLIB_INIT; /* Initial call state */
}
return CURLE_OK;
}
#ifdef OLD_ZLIB_SUPPORT
/* Skip over the gzip header */
static enum {
GZIP_OK,
GZIP_BAD,
GZIP_UNDERFLOW
} check_gzip_header(unsigned char const *data, ssize_t len, ssize_t *headerlen)
{
int method, flags;
const ssize_t totallen = len;
/* The shortest header is 10 bytes */
if(len < 10)
return GZIP_UNDERFLOW;
if((data[0] != GZIP_MAGIC_0) || (data[1] != GZIP_MAGIC_1))
return GZIP_BAD;
method = data[2];
flags = data[3];
if(method != Z_DEFLATED || (flags & RESERVED) != 0) {
/* Can't handle this compression method or unknown flag */
return GZIP_BAD;
}
/* Skip over time, xflags, OS code and all previous bytes */
len -= 10;
data += 10;
if(flags & EXTRA_FIELD) {
ssize_t extra_len;
if(len < 2)
return GZIP_UNDERFLOW;
extra_len = (data[1] << 8) | data[0];
if(len < (extra_len + 2))
return GZIP_UNDERFLOW;
len -= (extra_len + 2);
data += (extra_len + 2);
}
if(flags & ORIG_NAME) {
/* Skip over NUL-terminated file name */
while(len && *data) {
--len;
++data;
}
if(!len || *data)
return GZIP_UNDERFLOW;
/* Skip over the NUL */
--len;
++data;
}
if(flags & COMMENT) {
/* Skip over NUL-terminated comment */
while(len && *data) {
--len;
++data;
}
if(!len || *data)
return GZIP_UNDERFLOW;
/* Skip over the NUL */
--len;
}
if(flags & HEAD_CRC) {
if(len < 2)
return GZIP_UNDERFLOW;
len -= 2;
}
*headerlen = totallen - len;
return GZIP_OK;
}
#endif
static CURLcode gzip_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
if(zp->zlib_init == ZLIB_INIT_GZIP) {
/* Let zlib handle the gzip decompression entirely */
z->next_in = (Bytef *) buf;
z->avail_in = (uInt) nbytes;
/* Now uncompress the data */
return inflate_stream(data, writer, ZLIB_INIT_GZIP);
}
#ifndef OLD_ZLIB_SUPPORT
/* Support for old zlib versions is compiled away and we are running with
an old version, so return an error. */
return exit_zlib(data, z, &zp->zlib_init, CURLE_WRITE_ERROR);
#else
/* This next mess is to get around the potential case where there isn't
* enough data passed in to skip over the gzip header. If that happens, we
* malloc a block and copy what we have then wait for the next call. If
* there still isn't enough (this is definitely a worst-case scenario), we
* make the block bigger, copy the next part in and keep waiting.
*
* This is only required with zlib versions < 1.2.0.4 as newer versions
* can handle the gzip header themselves.
*/
switch(zp->zlib_init) {
/* Skip over gzip header? */
case ZLIB_INIT:
{
/* Initial call state */
ssize_t hlen;
switch(check_gzip_header((unsigned char *) buf, nbytes, &hlen)) {
case GZIP_OK:
z->next_in = (Bytef *) buf + hlen;
z->avail_in = (uInt) (nbytes - hlen);
zp->zlib_init = ZLIB_GZIP_INFLATING; /* Inflating stream state */
break;
case GZIP_UNDERFLOW:
/* We need more data so we can find the end of the gzip header. It's
* possible that the memory block we malloc here will never be freed if
* the transfer abruptly aborts after this point. Since it's unlikely
* that circumstances will be right for this code path to be followed in
* the first place, and it's even more unlikely for a transfer to fail
* immediately afterwards, it should seldom be a problem.
*/
z->avail_in = (uInt) nbytes;
z->next_in = malloc(z->avail_in);
if(!z->next_in) {
return exit_zlib(data, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);
}
memcpy(z->next_in, buf, z->avail_in);
zp->zlib_init = ZLIB_GZIP_HEADER; /* Need more gzip header data state */
/* We don't have any data to inflate yet */
return CURLE_OK;
case GZIP_BAD:
default:
return exit_zlib(data, z, &zp->zlib_init, process_zlib_error(data, z));
}
}
break;
case ZLIB_GZIP_HEADER:
{
/* Need more gzip header data state */
ssize_t hlen;
z->avail_in += (uInt) nbytes;
z->next_in = Curl_saferealloc(z->next_in, z->avail_in);
if(!z->next_in) {
return exit_zlib(data, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);
}
/* Append the new block of data to the previous one */
memcpy(z->next_in + z->avail_in - nbytes, buf, nbytes);
switch(check_gzip_header(z->next_in, z->avail_in, &hlen)) {
case GZIP_OK:
/* This is the zlib stream data */
free(z->next_in);
/* Don't point into the malloced block since we just freed it */
z->next_in = (Bytef *) buf + hlen + nbytes - z->avail_in;
z->avail_in = (uInt) (z->avail_in - hlen);
zp->zlib_init = ZLIB_GZIP_INFLATING; /* Inflating stream state */
break;
case GZIP_UNDERFLOW:
/* We still don't have any data to inflate! */
return CURLE_OK;
case GZIP_BAD:
default:
return exit_zlib(data, z, &zp->zlib_init, process_zlib_error(data, z));
}
}
break;
case ZLIB_EXTERNAL_TRAILER:
z->next_in = (Bytef *) buf;
z->avail_in = (uInt) nbytes;
return process_trailer(data, zp);
case ZLIB_GZIP_INFLATING:
default:
/* Inflating stream state */
z->next_in = (Bytef *) buf;
z->avail_in = (uInt) nbytes;
break;
}
if(z->avail_in == 0) {
/* We don't have any data to inflate; wait until next time */
return CURLE_OK;
}
/* We've parsed the header, now uncompress the data */
return inflate_stream(data, writer, ZLIB_GZIP_INFLATING);
#endif
}
static void gzip_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zlib_params *zp = (struct zlib_params *) &writer->params;
z_stream *z = &zp->z; /* zlib state structure */
exit_zlib(data, z, &zp->zlib_init, CURLE_OK);
}
static const struct content_encoding gzip_encoding = {
"gzip",
"x-gzip",
gzip_init_writer,
gzip_unencode_write,
gzip_close_writer,
sizeof(struct zlib_params)
};
#endif /* HAVE_LIBZ */
#ifdef HAVE_BROTLI
/* Writer parameters. */
struct brotli_params {
BrotliDecoderState *br; /* State structure for brotli. */
};
static CURLcode brotli_map_error(BrotliDecoderErrorCode be)
{
switch(be) {
case BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_NIBBLE:
case BROTLI_DECODER_ERROR_FORMAT_EXUBERANT_META_NIBBLE:
case BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_ALPHABET:
case BROTLI_DECODER_ERROR_FORMAT_SIMPLE_HUFFMAN_SAME:
case BROTLI_DECODER_ERROR_FORMAT_CL_SPACE:
case BROTLI_DECODER_ERROR_FORMAT_HUFFMAN_SPACE:
case BROTLI_DECODER_ERROR_FORMAT_CONTEXT_MAP_REPEAT:
case BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_1:
case BROTLI_DECODER_ERROR_FORMAT_BLOCK_LENGTH_2:
case BROTLI_DECODER_ERROR_FORMAT_TRANSFORM:
case BROTLI_DECODER_ERROR_FORMAT_DICTIONARY:
case BROTLI_DECODER_ERROR_FORMAT_WINDOW_BITS:
case BROTLI_DECODER_ERROR_FORMAT_PADDING_1:
case BROTLI_DECODER_ERROR_FORMAT_PADDING_2:
#ifdef BROTLI_DECODER_ERROR_COMPOUND_DICTIONARY
case BROTLI_DECODER_ERROR_COMPOUND_DICTIONARY:
#endif
#ifdef BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET
case BROTLI_DECODER_ERROR_DICTIONARY_NOT_SET:
#endif
case BROTLI_DECODER_ERROR_INVALID_ARGUMENTS:
return CURLE_BAD_CONTENT_ENCODING;
case BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MODES:
case BROTLI_DECODER_ERROR_ALLOC_TREE_GROUPS:
case BROTLI_DECODER_ERROR_ALLOC_CONTEXT_MAP:
case BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_1:
case BROTLI_DECODER_ERROR_ALLOC_RING_BUFFER_2:
case BROTLI_DECODER_ERROR_ALLOC_BLOCK_TYPE_TREES:
return CURLE_OUT_OF_MEMORY;
default:
break;
}
return CURLE_WRITE_ERROR;
}
static CURLcode brotli_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct brotli_params *bp = (struct brotli_params *) &writer->params;
(void) data;
if(!writer->downstream)
return CURLE_WRITE_ERROR;
bp->br = BrotliDecoderCreateInstance(NULL, NULL, NULL);
return bp->br? CURLE_OK: CURLE_OUT_OF_MEMORY;
}
static CURLcode brotli_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
struct brotli_params *bp = (struct brotli_params *) &writer->params;
const uint8_t *src = (const uint8_t *) buf;
char *decomp;
uint8_t *dst;
size_t dstleft;
CURLcode result = CURLE_OK;
BrotliDecoderResult r = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT;
if(!bp->br)
return CURLE_WRITE_ERROR; /* Stream already ended. */
decomp = malloc(DSIZ);
if(!decomp)
return CURLE_OUT_OF_MEMORY;
while((nbytes || r == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) &&
result == CURLE_OK) {
dst = (uint8_t *) decomp;
dstleft = DSIZ;
r = BrotliDecoderDecompressStream(bp->br,
&nbytes, &src, &dstleft, &dst, NULL);
result = Curl_unencode_write(data, writer->downstream,
decomp, DSIZ - dstleft);
if(result)
break;
switch(r) {
case BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT:
case BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT:
break;
case BROTLI_DECODER_RESULT_SUCCESS:
BrotliDecoderDestroyInstance(bp->br);
bp->br = NULL;
if(nbytes)
result = CURLE_WRITE_ERROR;
break;
default:
result = brotli_map_error(BrotliDecoderGetErrorCode(bp->br));
break;
}
}
free(decomp);
return result;
}
static void brotli_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct brotli_params *bp = (struct brotli_params *) &writer->params;
(void) data;
if(bp->br) {
BrotliDecoderDestroyInstance(bp->br);
bp->br = NULL;
}
}
static const struct content_encoding brotli_encoding = {
"br",
NULL,
brotli_init_writer,
brotli_unencode_write,
brotli_close_writer,
sizeof(struct brotli_params)
};
#endif
#ifdef HAVE_ZSTD
/* Writer parameters. */
struct zstd_params {
ZSTD_DStream *zds; /* State structure for zstd. */
void *decomp;
};
static CURLcode zstd_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zstd_params *zp = (struct zstd_params *)&writer->params;
(void)data;
if(!writer->downstream)
return CURLE_WRITE_ERROR;
zp->zds = ZSTD_createDStream();
zp->decomp = NULL;
return zp->zds ? CURLE_OK : CURLE_OUT_OF_MEMORY;
}
static CURLcode zstd_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
CURLcode result = CURLE_OK;
struct zstd_params *zp = (struct zstd_params *)&writer->params;
ZSTD_inBuffer in;
ZSTD_outBuffer out;
size_t errorCode;
if(!zp->decomp) {
zp->decomp = malloc(DSIZ);
if(!zp->decomp)
return CURLE_OUT_OF_MEMORY;
}
in.pos = 0;
in.src = buf;
in.size = nbytes;
for(;;) {
out.pos = 0;
out.dst = zp->decomp;
out.size = DSIZ;
errorCode = ZSTD_decompressStream(zp->zds, &out, &in);
if(ZSTD_isError(errorCode)) {
return CURLE_BAD_CONTENT_ENCODING;
}
if(out.pos > 0) {
result = Curl_unencode_write(data, writer->downstream,
zp->decomp, out.pos);
if(result)
break;
}
if((in.pos == nbytes) && (out.pos < out.size))
break;
}
return result;
}
static void zstd_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
struct zstd_params *zp = (struct zstd_params *)&writer->params;
(void)data;
if(zp->decomp) {
free(zp->decomp);
zp->decomp = NULL;
}
if(zp->zds) {
ZSTD_freeDStream(zp->zds);
zp->zds = NULL;
}
}
static const struct content_encoding zstd_encoding = {
"zstd",
NULL,
zstd_init_writer,
zstd_unencode_write,
zstd_close_writer,
sizeof(struct zstd_params)
};
#endif
/* Identity handler. */
static CURLcode identity_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
return writer->downstream? CURLE_OK: CURLE_WRITE_ERROR;
}
static CURLcode identity_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
return Curl_unencode_write(data, writer->downstream, buf, nbytes);
}
static void identity_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
(void) writer;
}
static const struct content_encoding identity_encoding = {
"identity",
"none",
identity_init_writer,
identity_unencode_write,
identity_close_writer,
0
};
/* supported content encodings table. */
static const struct content_encoding * const encodings[] = {
&identity_encoding,
#ifdef HAVE_LIBZ
&deflate_encoding,
&gzip_encoding,
#endif
#ifdef HAVE_BROTLI
&brotli_encoding,
#endif
#ifdef HAVE_ZSTD
&zstd_encoding,
#endif
NULL
};
/* Return a list of comma-separated names of supported encodings. */
char *Curl_all_content_encodings(void)
{
size_t len = 0;
const struct content_encoding * const *cep;
const struct content_encoding *ce;
char *ace;
for(cep = encodings; *cep; cep++) {
ce = *cep;
if(!strcasecompare(ce->name, CONTENT_ENCODING_DEFAULT))
len += strlen(ce->name) + 2;
}
if(!len)
return strdup(CONTENT_ENCODING_DEFAULT);
ace = malloc(len);
if(ace) {
char *p = ace;
for(cep = encodings; *cep; cep++) {
ce = *cep;
if(!strcasecompare(ce->name, CONTENT_ENCODING_DEFAULT)) {
strcpy(p, ce->name);
p += strlen(p);
*p++ = ',';
*p++ = ' ';
}
}
p[-2] = '\0';
}
return ace;
}
/* Real client writer: no downstream. */
static CURLcode client_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
return writer->downstream? CURLE_WRITE_ERROR: CURLE_OK;
}
static CURLcode client_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
struct SingleRequest *k = &data->req;
(void) writer;
if(!nbytes || k->ignorebody)
return CURLE_OK;
return Curl_client_write(data, CLIENTWRITE_BODY, (char *) buf, nbytes);
}
static void client_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
(void) writer;
}
static const struct content_encoding client_encoding = {
NULL,
NULL,
client_init_writer,
client_unencode_write,
client_close_writer,
0
};
/* Deferred error dummy writer. */
static CURLcode error_init_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
return writer->downstream? CURLE_OK: CURLE_WRITE_ERROR;
}
static CURLcode error_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
char *all = Curl_all_content_encodings();
(void) writer;
(void) buf;
(void) nbytes;
if(!all)
return CURLE_OUT_OF_MEMORY;
failf(data, "Unrecognized content encoding type. "
"libcurl understands %s content encodings.", all);
free(all);
return CURLE_BAD_CONTENT_ENCODING;
}
static void error_close_writer(struct Curl_easy *data,
struct contenc_writer *writer)
{
(void) data;
(void) writer;
}
static const struct content_encoding error_encoding = {
NULL,
NULL,
error_init_writer,
error_unencode_write,
error_close_writer,
0
};
/* Create an unencoding writer stage using the given handler. */
static struct contenc_writer *
new_unencoding_writer(struct Curl_easy *data,
const struct content_encoding *handler,
struct contenc_writer *downstream)
{
size_t sz = offsetof(struct contenc_writer, params) + handler->paramsize;
struct contenc_writer *writer = (struct contenc_writer *)calloc(1, sz);
if(writer) {
writer->handler = handler;
writer->downstream = downstream;
if(handler->init_writer(data, writer)) {
free(writer);
writer = NULL;
}
}
return writer;
}
/* Write data using an unencoding writer stack. "nbytes" is not
allowed to be 0. */
CURLcode Curl_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
if(!nbytes)
return CURLE_OK;
return writer->handler->unencode_write(data, writer, buf, nbytes);
}
/* Close and clean-up the connection's writer stack. */
void Curl_unencode_cleanup(struct Curl_easy *data)
{
struct SingleRequest *k = &data->req;
struct contenc_writer *writer = k->writer_stack;
while(writer) {
k->writer_stack = writer->downstream;
writer->handler->close_writer(data, writer);
free(writer);
writer = k->writer_stack;
}
}
/* Find the content encoding by name. */
static const struct content_encoding *find_encoding(const char *name,
size_t len)
{
const struct content_encoding * const *cep;
for(cep = encodings; *cep; cep++) {
const struct content_encoding *ce = *cep;
if((strncasecompare(name, ce->name, len) && !ce->name[len]) ||
(ce->alias && strncasecompare(name, ce->alias, len) && !ce->alias[len]))
return ce;
}
return NULL;
}
/* Set-up the unencoding stack from the Content-Encoding header value.
* See RFC 7231 section 3.1.2.2. */
CURLcode Curl_build_unencoding_stack(struct Curl_easy *data,
const char *enclist, int maybechunked)
{
struct SingleRequest *k = &data->req;
do {
const char *name;
size_t namelen;
/* Parse a single encoding name. */
while(ISSPACE(*enclist) || *enclist == ',')
enclist++;
name = enclist;
for(namelen = 0; *enclist && *enclist != ','; enclist++)
if(!ISSPACE(*enclist))
namelen = enclist - name + 1;
/* Special case: chunked encoding is handled at the reader level. */
if(maybechunked && namelen == 7 && strncasecompare(name, "chunked", 7)) {
k->chunk = TRUE; /* chunks coming our way. */
Curl_httpchunk_init(data); /* init our chunky engine. */
}
else if(namelen) {
const struct content_encoding *encoding = find_encoding(name, namelen);
struct contenc_writer *writer;
if(!k->writer_stack) {
k->writer_stack = new_unencoding_writer(data, &client_encoding, NULL);
if(!k->writer_stack)
return CURLE_OUT_OF_MEMORY;
}
if(!encoding)
encoding = &error_encoding; /* Defer error at stack use. */
/* Stack the unencoding stage. */
writer = new_unencoding_writer(data, encoding, k->writer_stack);
if(!writer)
return CURLE_OUT_OF_MEMORY;
k->writer_stack = writer;
}
} while(*enclist);
return CURLE_OK;
}
#else
/* Stubs for builds without HTTP. */
CURLcode Curl_build_unencoding_stack(struct Curl_easy *data,
const char *enclist, int maybechunked)
{
(void) data;
(void) enclist;
(void) maybechunked;
return CURLE_NOT_BUILT_IN;
}
CURLcode Curl_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes)
{
(void) data;
(void) writer;
(void) buf;
(void) nbytes;
return CURLE_NOT_BUILT_IN;
}
void Curl_unencode_cleanup(struct Curl_easy *data)
{
(void) data;
}
char *Curl_all_content_encodings(void)
{
return strdup(CONTENT_ENCODING_DEFAULT); /* Satisfy caller. */
}
#endif /* CURL_DISABLE_HTTP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_range.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_range.h"
#include "sendf.h"
#include "strtoofft.h"
/* Only include this function if one or more of FTP, FILE are enabled. */
#if !defined(CURL_DISABLE_FTP) || !defined(CURL_DISABLE_FILE)
/*
Check if this is a range download, and if so, set the internal variables
properly.
*/
CURLcode Curl_range(struct Curl_easy *data)
{
curl_off_t from, to;
char *ptr;
char *ptr2;
if(data->state.use_range && data->state.range) {
CURLofft from_t;
CURLofft to_t;
from_t = curlx_strtoofft(data->state.range, &ptr, 0, &from);
if(from_t == CURL_OFFT_FLOW)
return CURLE_RANGE_ERROR;
while(*ptr && (ISSPACE(*ptr) || (*ptr == '-')))
ptr++;
to_t = curlx_strtoofft(ptr, &ptr2, 0, &to);
if(to_t == CURL_OFFT_FLOW)
return CURLE_RANGE_ERROR;
if((to_t == CURL_OFFT_INVAL) && !from_t) {
/* X - */
data->state.resume_from = from;
DEBUGF(infof(data, "RANGE %" CURL_FORMAT_CURL_OFF_T " to end of file",
from));
}
else if((from_t == CURL_OFFT_INVAL) && !to_t) {
/* -Y */
data->req.maxdownload = to;
data->state.resume_from = -to;
DEBUGF(infof(data, "RANGE the last %" CURL_FORMAT_CURL_OFF_T " bytes",
to));
}
else {
/* X-Y */
curl_off_t totalsize;
/* Ensure the range is sensible - to should follow from. */
if(from > to)
return CURLE_RANGE_ERROR;
totalsize = to - from;
if(totalsize == CURL_OFF_T_MAX)
return CURLE_RANGE_ERROR;
data->req.maxdownload = totalsize + 1; /* include last byte */
data->state.resume_from = from;
DEBUGF(infof(data, "RANGE from %" CURL_FORMAT_CURL_OFF_T
" getting %" CURL_FORMAT_CURL_OFF_T " bytes",
from, data->req.maxdownload));
}
DEBUGF(infof(data, "range-download from %" CURL_FORMAT_CURL_OFF_T
" to %" CURL_FORMAT_CURL_OFF_T ", totally %"
CURL_FORMAT_CURL_OFF_T " bytes",
from, to, data->req.maxdownload));
}
else
data->req.maxdownload = -1;
return CURLE_OK;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/multi.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "transfer.h"
#include "url.h"
#include "connect.h"
#include "progress.h"
#include "easyif.h"
#include "share.h"
#include "psl.h"
#include "multiif.h"
#include "sendf.h"
#include "timeval.h"
#include "http.h"
#include "select.h"
#include "warnless.h"
#include "speedcheck.h"
#include "conncache.h"
#include "multihandle.h"
#include "sigpipe.h"
#include "vtls/vtls.h"
#include "connect.h"
#include "http_proxy.h"
#include "http2.h"
#include "socketpair.h"
#include "socks.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/*
CURL_SOCKET_HASH_TABLE_SIZE should be a prime number. Increasing it from 97
to 911 takes on a 32-bit machine 4 x 804 = 3211 more bytes. Still, every
CURL handle takes 45-50 K memory, therefore this 3K are not significant.
*/
#ifndef CURL_SOCKET_HASH_TABLE_SIZE
#define CURL_SOCKET_HASH_TABLE_SIZE 911
#endif
#ifndef CURL_CONNECTION_HASH_SIZE
#define CURL_CONNECTION_HASH_SIZE 97
#endif
#define CURL_MULTI_HANDLE 0x000bab1e
#define GOOD_MULTI_HANDLE(x) \
((x) && (x)->magic == CURL_MULTI_HANDLE)
static CURLMcode singlesocket(struct Curl_multi *multi,
struct Curl_easy *data);
static CURLMcode add_next_timeout(struct curltime now,
struct Curl_multi *multi,
struct Curl_easy *d);
static CURLMcode multi_timeout(struct Curl_multi *multi,
long *timeout_ms);
static void process_pending_handles(struct Curl_multi *multi);
#ifdef DEBUGBUILD
static const char * const statename[]={
"INIT",
"PENDING",
"CONNECT",
"RESOLVING",
"CONNECTING",
"TUNNELING",
"PROTOCONNECT",
"PROTOCONNECTING",
"DO",
"DOING",
"DOING_MORE",
"DID",
"PERFORMING",
"RATELIMITING",
"DONE",
"COMPLETED",
"MSGSENT",
};
#endif
/* function pointer called once when switching TO a state */
typedef void (*init_multistate_func)(struct Curl_easy *data);
/* called in DID state, before PERFORMING state */
static void before_perform(struct Curl_easy *data)
{
data->req.chunk = FALSE;
Curl_pgrsTime(data, TIMER_PRETRANSFER);
}
static void init_completed(struct Curl_easy *data)
{
/* this is a completed transfer */
/* Important: reset the conn pointer so that we don't point to memory
that could be freed anytime */
Curl_detach_connnection(data);
Curl_expire_clear(data); /* stop all timers */
}
/* always use this function to change state, to make debugging easier */
static void mstate(struct Curl_easy *data, CURLMstate state
#ifdef DEBUGBUILD
, int lineno
#endif
)
{
CURLMstate oldstate = data->mstate;
static const init_multistate_func finit[MSTATE_LAST] = {
NULL, /* INIT */
NULL, /* PENDING */
Curl_init_CONNECT, /* CONNECT */
NULL, /* RESOLVING */
NULL, /* CONNECTING */
NULL, /* TUNNELING */
NULL, /* PROTOCONNECT */
NULL, /* PROTOCONNECTING */
Curl_connect_free, /* DO */
NULL, /* DOING */
NULL, /* DOING_MORE */
before_perform, /* DID */
NULL, /* PERFORMING */
NULL, /* RATELIMITING */
NULL, /* DONE */
init_completed, /* COMPLETED */
NULL /* MSGSENT */
};
#if defined(DEBUGBUILD) && defined(CURL_DISABLE_VERBOSE_STRINGS)
(void) lineno;
#endif
if(oldstate == state)
/* don't bother when the new state is the same as the old state */
return;
data->mstate = state;
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
if(data->mstate >= MSTATE_PENDING &&
data->mstate < MSTATE_COMPLETED) {
long connection_id = -5000;
if(data->conn)
connection_id = data->conn->connection_id;
infof(data,
"STATE: %s => %s handle %p; line %d (connection #%ld)",
statename[oldstate], statename[data->mstate],
(void *)data, lineno, connection_id);
}
#endif
if(state == MSTATE_COMPLETED) {
/* changing to COMPLETED means there's one less easy handle 'alive' */
DEBUGASSERT(data->multi->num_alive > 0);
data->multi->num_alive--;
}
/* if this state has an init-function, run it */
if(finit[state])
finit[state](data);
}
#ifndef DEBUGBUILD
#define multistate(x,y) mstate(x,y)
#else
#define multistate(x,y) mstate(x,y, __LINE__)
#endif
/*
* We add one of these structs to the sockhash for each socket
*/
struct Curl_sh_entry {
struct Curl_hash transfers; /* hash of transfers using this socket */
unsigned int action; /* what combined action READ/WRITE this socket waits
for */
unsigned int users; /* number of transfers using this */
void *socketp; /* settable by users with curl_multi_assign() */
unsigned int readers; /* this many transfers want to read */
unsigned int writers; /* this many transfers want to write */
};
/* bits for 'action' having no bits means this socket is not expecting any
action */
#define SH_READ 1
#define SH_WRITE 2
/* look up a given socket in the socket hash, skip invalid sockets */
static struct Curl_sh_entry *sh_getentry(struct Curl_hash *sh,
curl_socket_t s)
{
if(s != CURL_SOCKET_BAD) {
/* only look for proper sockets */
return Curl_hash_pick(sh, (char *)&s, sizeof(curl_socket_t));
}
return NULL;
}
#define TRHASH_SIZE 13
static size_t trhash(void *key, size_t key_length, size_t slots_num)
{
size_t keyval = (size_t)*(struct Curl_easy **)key;
(void) key_length;
return (keyval % slots_num);
}
static size_t trhash_compare(void *k1, size_t k1_len, void *k2, size_t k2_len)
{
(void)k1_len;
(void)k2_len;
return *(struct Curl_easy **)k1 == *(struct Curl_easy **)k2;
}
static void trhash_dtor(void *nada)
{
(void)nada;
}
/* make sure this socket is present in the hash for this handle */
static struct Curl_sh_entry *sh_addentry(struct Curl_hash *sh,
curl_socket_t s)
{
struct Curl_sh_entry *there = sh_getentry(sh, s);
struct Curl_sh_entry *check;
if(there) {
/* it is present, return fine */
return there;
}
/* not present, add it */
check = calloc(1, sizeof(struct Curl_sh_entry));
if(!check)
return NULL; /* major failure */
if(Curl_hash_init(&check->transfers, TRHASH_SIZE, trhash,
trhash_compare, trhash_dtor)) {
free(check);
return NULL;
}
/* make/add new hash entry */
if(!Curl_hash_add(sh, (char *)&s, sizeof(curl_socket_t), check)) {
Curl_hash_destroy(&check->transfers);
free(check);
return NULL; /* major failure */
}
return check; /* things are good in sockhash land */
}
/* delete the given socket + handle from the hash */
static void sh_delentry(struct Curl_sh_entry *entry,
struct Curl_hash *sh, curl_socket_t s)
{
Curl_hash_destroy(&entry->transfers);
/* We remove the hash entry. This will end up in a call to
sh_freeentry(). */
Curl_hash_delete(sh, (char *)&s, sizeof(curl_socket_t));
}
/*
* free a sockhash entry
*/
static void sh_freeentry(void *freethis)
{
struct Curl_sh_entry *p = (struct Curl_sh_entry *) freethis;
free(p);
}
static size_t fd_key_compare(void *k1, size_t k1_len, void *k2, size_t k2_len)
{
(void) k1_len; (void) k2_len;
return (*((curl_socket_t *) k1)) == (*((curl_socket_t *) k2));
}
static size_t hash_fd(void *key, size_t key_length, size_t slots_num)
{
curl_socket_t fd = *((curl_socket_t *) key);
(void) key_length;
return (fd % slots_num);
}
/*
* sh_init() creates a new socket hash and returns the handle for it.
*
* Quote from README.multi_socket:
*
* "Some tests at 7000 and 9000 connections showed that the socket hash lookup
* is somewhat of a bottle neck. Its current implementation may be a bit too
* limiting. It simply has a fixed-size array, and on each entry in the array
* it has a linked list with entries. So the hash only checks which list to
* scan through. The code I had used so for used a list with merely 7 slots
* (as that is what the DNS hash uses) but with 7000 connections that would
* make an average of 1000 nodes in each list to run through. I upped that to
* 97 slots (I believe a prime is suitable) and noticed a significant speed
* increase. I need to reconsider the hash implementation or use a rather
* large default value like this. At 9000 connections I was still below 10us
* per call."
*
*/
static int sh_init(struct Curl_hash *hash, int hashsize)
{
return Curl_hash_init(hash, hashsize, hash_fd, fd_key_compare,
sh_freeentry);
}
/*
* multi_addmsg()
*
* Called when a transfer is completed. Adds the given msg pointer to
* the list kept in the multi handle.
*/
static CURLMcode multi_addmsg(struct Curl_multi *multi,
struct Curl_message *msg)
{
Curl_llist_insert_next(&multi->msglist, multi->msglist.tail, msg,
&msg->list);
return CURLM_OK;
}
struct Curl_multi *Curl_multi_handle(int hashsize, /* socket hash */
int chashsize) /* connection hash */
{
struct Curl_multi *multi = calloc(1, sizeof(struct Curl_multi));
if(!multi)
return NULL;
multi->magic = CURL_MULTI_HANDLE;
if(Curl_mk_dnscache(&multi->hostcache))
goto error;
if(sh_init(&multi->sockhash, hashsize))
goto error;
if(Curl_conncache_init(&multi->conn_cache, chashsize))
goto error;
Curl_llist_init(&multi->msglist, NULL);
Curl_llist_init(&multi->pending, NULL);
multi->multiplexing = TRUE;
/* -1 means it not set by user, use the default value */
multi->maxconnects = -1;
multi->max_concurrent_streams = 100;
multi->ipv6_works = Curl_ipv6works(NULL);
#ifdef USE_WINSOCK
multi->wsa_event = WSACreateEvent();
if(multi->wsa_event == WSA_INVALID_EVENT)
goto error;
#else
#ifdef ENABLE_WAKEUP
if(Curl_socketpair(AF_UNIX, SOCK_STREAM, 0, multi->wakeup_pair) < 0) {
multi->wakeup_pair[0] = CURL_SOCKET_BAD;
multi->wakeup_pair[1] = CURL_SOCKET_BAD;
}
else if(curlx_nonblock(multi->wakeup_pair[0], TRUE) < 0 ||
curlx_nonblock(multi->wakeup_pair[1], TRUE) < 0) {
sclose(multi->wakeup_pair[0]);
sclose(multi->wakeup_pair[1]);
multi->wakeup_pair[0] = CURL_SOCKET_BAD;
multi->wakeup_pair[1] = CURL_SOCKET_BAD;
}
#endif
#endif
return multi;
error:
Curl_hash_destroy(&multi->sockhash);
Curl_hash_destroy(&multi->hostcache);
Curl_conncache_destroy(&multi->conn_cache);
Curl_llist_destroy(&multi->msglist, NULL);
Curl_llist_destroy(&multi->pending, NULL);
free(multi);
return NULL;
}
struct Curl_multi *curl_multi_init(void)
{
return Curl_multi_handle(CURL_SOCKET_HASH_TABLE_SIZE,
CURL_CONNECTION_HASH_SIZE);
}
CURLMcode curl_multi_add_handle(struct Curl_multi *multi,
struct Curl_easy *data)
{
/* First, make some basic checks that the CURLM handle is a good handle */
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
/* Verify that we got a somewhat good easy handle too */
if(!GOOD_EASY_HANDLE(data))
return CURLM_BAD_EASY_HANDLE;
/* Prevent users from adding same easy handle more than once and prevent
adding to more than one multi stack */
if(data->multi)
return CURLM_ADDED_ALREADY;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
/* Initialize timeout list for this handle */
Curl_llist_init(&data->state.timeoutlist, NULL);
/*
* No failure allowed in this function beyond this point. And no
* modification of easy nor multi handle allowed before this except for
* potential multi's connection cache growing which won't be undone in this
* function no matter what.
*/
if(data->set.errorbuffer)
data->set.errorbuffer[0] = 0;
/* set the easy handle */
multistate(data, MSTATE_INIT);
/* for multi interface connections, we share DNS cache automatically if the
easy handle's one is currently not set. */
if(!data->dns.hostcache ||
(data->dns.hostcachetype == HCACHE_NONE)) {
data->dns.hostcache = &multi->hostcache;
data->dns.hostcachetype = HCACHE_MULTI;
}
/* Point to the shared or multi handle connection cache */
if(data->share && (data->share->specifier & (1<< CURL_LOCK_DATA_CONNECT)))
data->state.conn_cache = &data->share->conn_cache;
else
data->state.conn_cache = &multi->conn_cache;
data->state.lastconnect_id = -1;
#ifdef USE_LIBPSL
/* Do the same for PSL. */
if(data->share && (data->share->specifier & (1 << CURL_LOCK_DATA_PSL)))
data->psl = &data->share->psl;
else
data->psl = &multi->psl;
#endif
/* We add the new entry last in the list. */
data->next = NULL; /* end of the line */
if(multi->easyp) {
struct Curl_easy *last = multi->easylp;
last->next = data;
data->prev = last;
multi->easylp = data; /* the new last node */
}
else {
/* first node, make prev NULL! */
data->prev = NULL;
multi->easylp = multi->easyp = data; /* both first and last */
}
/* make the Curl_easy refer back to this multi handle */
data->multi = multi;
/* Set the timeout for this handle to expire really soon so that it will
be taken care of even when this handle is added in the midst of operation
when only the curl_multi_socket() API is used. During that flow, only
sockets that time-out or have actions will be dealt with. Since this
handle has no action yet, we make sure it times out to get things to
happen. */
Curl_expire(data, 0, EXPIRE_RUN_NOW);
/* increase the node-counter */
multi->num_easy++;
/* increase the alive-counter */
multi->num_alive++;
/* A somewhat crude work-around for a little glitch in Curl_update_timer()
that happens if the lastcall time is set to the same time when the handle
is removed as when the next handle is added, as then the check in
Curl_update_timer() that prevents calling the application multiple times
with the same timer info will not trigger and then the new handle's
timeout will not be notified to the app.
The work-around is thus simply to clear the 'lastcall' variable to force
Curl_update_timer() to always trigger a callback to the app when a new
easy handle is added */
memset(&multi->timer_lastcall, 0, sizeof(multi->timer_lastcall));
CONNCACHE_LOCK(data);
/* The closure handle only ever has default timeouts set. To improve the
state somewhat we clone the timeouts from each added handle so that the
closure handle always has the same timeouts as the most recently added
easy handle. */
data->state.conn_cache->closure_handle->set.timeout = data->set.timeout;
data->state.conn_cache->closure_handle->set.server_response_timeout =
data->set.server_response_timeout;
data->state.conn_cache->closure_handle->set.no_signal =
data->set.no_signal;
CONNCACHE_UNLOCK(data);
Curl_update_timer(multi);
return CURLM_OK;
}
#if 0
/* Debug-function, used like this:
*
* Curl_hash_print(multi->sockhash, debug_print_sock_hash);
*
* Enable the hash print function first by editing hash.c
*/
static void debug_print_sock_hash(void *p)
{
struct Curl_sh_entry *sh = (struct Curl_sh_entry *)p;
fprintf(stderr, " [easy %p/magic %x/socket %d]",
(void *)sh->data, sh->data->magic, (int)sh->socket);
}
#endif
static CURLcode multi_done(struct Curl_easy *data,
CURLcode status, /* an error if this is called
after an error was detected */
bool premature)
{
CURLcode result;
struct connectdata *conn = data->conn;
unsigned int i;
DEBUGF(infof(data, "multi_done"));
if(data->state.done)
/* Stop if multi_done() has already been called */
return CURLE_OK;
/* Stop the resolver and free its own resources (but not dns_entry yet). */
Curl_resolver_kill(data);
/* Cleanup possible redirect junk */
Curl_safefree(data->req.newurl);
Curl_safefree(data->req.location);
switch(status) {
case CURLE_ABORTED_BY_CALLBACK:
case CURLE_READ_ERROR:
case CURLE_WRITE_ERROR:
/* When we're aborted due to a callback return code it basically have to
be counted as premature as there is trouble ahead if we don't. We have
many callbacks and protocols work differently, we could potentially do
this more fine-grained in the future. */
premature = TRUE;
default:
break;
}
/* this calls the protocol-specific function pointer previously set */
if(conn->handler->done)
result = conn->handler->done(data, status, premature);
else
result = status;
if(CURLE_ABORTED_BY_CALLBACK != result) {
/* avoid this if we already aborted by callback to avoid this calling
another callback */
CURLcode rc = Curl_pgrsDone(data);
if(!result && rc)
result = CURLE_ABORTED_BY_CALLBACK;
}
process_pending_handles(data->multi); /* connection / multiplex */
CONNCACHE_LOCK(data);
Curl_detach_connnection(data);
if(CONN_INUSE(conn)) {
/* Stop if still used. */
CONNCACHE_UNLOCK(data);
DEBUGF(infof(data, "Connection still in use %zu, "
"no more multi_done now!",
conn->easyq.size));
return CURLE_OK;
}
data->state.done = TRUE; /* called just now! */
if(conn->dns_entry) {
Curl_resolv_unlock(data, conn->dns_entry); /* done with this */
conn->dns_entry = NULL;
}
Curl_hostcache_prune(data);
Curl_safefree(data->state.ulbuf);
/* if the transfer was completed in a paused state there can be buffered
data left to free */
for(i = 0; i < data->state.tempcount; i++) {
Curl_dyn_free(&data->state.tempwrite[i].b);
}
data->state.tempcount = 0;
/* if data->set.reuse_forbid is TRUE, it means the libcurl client has
forced us to close this connection. This is ignored for requests taking
place in a NTLM/NEGOTIATE authentication handshake
if conn->bits.close is TRUE, it means that the connection should be
closed in spite of all our efforts to be nice, due to protocol
restrictions in our or the server's end
if premature is TRUE, it means this connection was said to be DONE before
the entire request operation is complete and thus we can't know in what
state it is for re-using, so we're forced to close it. In a perfect world
we can add code that keep track of if we really must close it here or not,
but currently we have no such detail knowledge.
*/
if((data->set.reuse_forbid
#if defined(USE_NTLM)
&& !(conn->http_ntlm_state == NTLMSTATE_TYPE2 ||
conn->proxy_ntlm_state == NTLMSTATE_TYPE2)
#endif
#if defined(USE_SPNEGO)
&& !(conn->http_negotiate_state == GSS_AUTHRECV ||
conn->proxy_negotiate_state == GSS_AUTHRECV)
#endif
) || conn->bits.close
|| (premature && !(conn->handler->flags & PROTOPT_STREAM))) {
CURLcode res2;
connclose(conn, "disconnecting");
Curl_conncache_remove_conn(data, conn, FALSE);
CONNCACHE_UNLOCK(data);
res2 = Curl_disconnect(data, conn, premature);
/* If we had an error already, make sure we return that one. But
if we got a new error, return that. */
if(!result && res2)
result = res2;
}
else {
char buffer[256];
const char *host =
#ifndef CURL_DISABLE_PROXY
conn->bits.socksproxy ?
conn->socks_proxy.host.dispname :
conn->bits.httpproxy ? conn->http_proxy.host.dispname :
#endif
conn->bits.conn_to_host ? conn->conn_to_host.dispname :
conn->host.dispname;
/* create string before returning the connection */
msnprintf(buffer, sizeof(buffer),
"Connection #%ld to host %s left intact",
conn->connection_id, host);
/* the connection is no longer in use by this transfer */
CONNCACHE_UNLOCK(data);
if(Curl_conncache_return_conn(data, conn)) {
/* remember the most recently used connection */
data->state.lastconnect_id = conn->connection_id;
infof(data, "%s", buffer);
}
else
data->state.lastconnect_id = -1;
}
Curl_safefree(data->state.buffer);
Curl_free_request_state(data);
return result;
}
static int close_connect_only(struct Curl_easy *data,
struct connectdata *conn, void *param)
{
(void)param;
if(data->state.lastconnect_id != conn->connection_id)
return 0;
if(!conn->bits.connect_only)
return 1;
connclose(conn, "Removing connect-only easy handle");
return 1;
}
CURLMcode curl_multi_remove_handle(struct Curl_multi *multi,
struct Curl_easy *data)
{
struct Curl_easy *easy = data;
bool premature;
struct Curl_llist_element *e;
/* First, make some basic checks that the CURLM handle is a good handle */
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
/* Verify that we got a somewhat good easy handle too */
if(!GOOD_EASY_HANDLE(data))
return CURLM_BAD_EASY_HANDLE;
/* Prevent users from trying to remove same easy handle more than once */
if(!data->multi)
return CURLM_OK; /* it is already removed so let's say it is fine! */
/* Prevent users from trying to remove an easy handle from the wrong multi */
if(data->multi != multi)
return CURLM_BAD_EASY_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
premature = (data->mstate < MSTATE_COMPLETED) ? TRUE : FALSE;
/* If the 'state' is not INIT or COMPLETED, we might need to do something
nice to put the easy_handle in a good known state when this returns. */
if(premature) {
/* this handle is "alive" so we need to count down the total number of
alive connections when this is removed */
multi->num_alive--;
}
if(data->conn &&
data->mstate > MSTATE_DO &&
data->mstate < MSTATE_COMPLETED) {
/* Set connection owner so that the DONE function closes it. We can
safely do this here since connection is killed. */
streamclose(data->conn, "Removed with partial response");
}
if(data->conn) {
/* multi_done() clears the association between the easy handle and the
connection.
Note that this ignores the return code simply because there's
nothing really useful to do with it anyway! */
(void)multi_done(data, data->result, premature);
}
/* The timer must be shut down before data->multi is set to NULL, else the
timenode will remain in the splay tree after curl_easy_cleanup is
called. Do it after multi_done() in case that sets another time! */
Curl_expire_clear(data);
if(data->connect_queue.ptr)
/* the handle was in the pending list waiting for an available connection,
so go ahead and remove it */
Curl_llist_remove(&multi->pending, &data->connect_queue, NULL);
if(data->dns.hostcachetype == HCACHE_MULTI) {
/* stop using the multi handle's DNS cache, *after* the possible
multi_done() call above */
data->dns.hostcache = NULL;
data->dns.hostcachetype = HCACHE_NONE;
}
Curl_wildcard_dtor(&data->wildcard);
/* destroy the timeout list that is held in the easy handle, do this *after*
multi_done() as that may actually call Curl_expire that uses this */
Curl_llist_destroy(&data->state.timeoutlist, NULL);
/* change state without using multistate(), only to make singlesocket() do
what we want */
data->mstate = MSTATE_COMPLETED;
singlesocket(multi, easy); /* to let the application know what sockets that
vanish with this handle */
/* Remove the association between the connection and the handle */
Curl_detach_connnection(data);
if(data->state.lastconnect_id != -1) {
/* Mark any connect-only connection for closure */
Curl_conncache_foreach(data, data->state.conn_cache,
NULL, close_connect_only);
}
#ifdef USE_LIBPSL
/* Remove the PSL association. */
if(data->psl == &multi->psl)
data->psl = NULL;
#endif
/* as this was using a shared connection cache we clear the pointer to that
since we're not part of that multi handle anymore */
data->state.conn_cache = NULL;
data->multi = NULL; /* clear the association to this multi handle */
/* make sure there's no pending message in the queue sent from this easy
handle */
for(e = multi->msglist.head; e; e = e->next) {
struct Curl_message *msg = e->ptr;
if(msg->extmsg.easy_handle == easy) {
Curl_llist_remove(&multi->msglist, e, NULL);
/* there can only be one from this specific handle */
break;
}
}
/* Remove from the pending list if it is there. Otherwise this will
remain on the pending list forever due to the state change. */
for(e = multi->pending.head; e; e = e->next) {
struct Curl_easy *curr_data = e->ptr;
if(curr_data == data) {
Curl_llist_remove(&multi->pending, e, NULL);
break;
}
}
/* make the previous node point to our next */
if(data->prev)
data->prev->next = data->next;
else
multi->easyp = data->next; /* point to first node */
/* make our next point to our previous node */
if(data->next)
data->next->prev = data->prev;
else
multi->easylp = data->prev; /* point to last node */
/* NOTE NOTE NOTE
We do not touch the easy handle here! */
multi->num_easy--; /* one less to care about now */
process_pending_handles(multi);
Curl_update_timer(multi);
return CURLM_OK;
}
/* Return TRUE if the application asked for multiplexing */
bool Curl_multiplex_wanted(const struct Curl_multi *multi)
{
return (multi && (multi->multiplexing));
}
/*
* Curl_detach_connnection() removes the given transfer from the connection.
*
* This is the only function that should clear data->conn. This will
* occasionally be called with the data->conn pointer already cleared.
*/
void Curl_detach_connnection(struct Curl_easy *data)
{
struct connectdata *conn = data->conn;
if(conn) {
Curl_llist_remove(&conn->easyq, &data->conn_queue, NULL);
Curl_ssl_detach_conn(data, conn);
}
data->conn = NULL;
}
/*
* Curl_attach_connnection() attaches this transfer to this connection.
*
* This is the only function that should assign data->conn
*/
void Curl_attach_connnection(struct Curl_easy *data,
struct connectdata *conn)
{
DEBUGASSERT(!data->conn);
DEBUGASSERT(conn);
data->conn = conn;
Curl_llist_insert_next(&conn->easyq, conn->easyq.tail, data,
&data->conn_queue);
if(conn->handler->attach)
conn->handler->attach(data, conn);
Curl_ssl_associate_conn(data, conn);
}
static int waitconnect_getsock(struct connectdata *conn,
curl_socket_t *sock)
{
int i;
int s = 0;
int rc = 0;
#ifdef USE_SSL
#ifndef CURL_DISABLE_PROXY
if(CONNECT_FIRSTSOCKET_PROXY_SSL())
return Curl_ssl->getsock(conn, sock);
#endif
#endif
if(SOCKS_STATE(conn->cnnct.state))
return Curl_SOCKS_getsock(conn, sock, FIRSTSOCKET);
for(i = 0; i<2; i++) {
if(conn->tempsock[i] != CURL_SOCKET_BAD) {
sock[s] = conn->tempsock[i];
rc |= GETSOCK_WRITESOCK(s);
#ifdef ENABLE_QUIC
if(conn->transport == TRNSPRT_QUIC)
/* when connecting QUIC, we want to read the socket too */
rc |= GETSOCK_READSOCK(s);
#endif
s++;
}
}
return rc;
}
static int waitproxyconnect_getsock(struct connectdata *conn,
curl_socket_t *sock)
{
sock[0] = conn->sock[FIRSTSOCKET];
if(conn->connect_state)
return Curl_connect_getsock(conn);
return GETSOCK_WRITESOCK(0);
}
static int domore_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
if(conn && conn->handler->domore_getsock)
return conn->handler->domore_getsock(data, conn, socks);
return GETSOCK_BLANK;
}
static int doing_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
if(conn && conn->handler->doing_getsock)
return conn->handler->doing_getsock(data, conn, socks);
return GETSOCK_BLANK;
}
static int protocol_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
if(conn->handler->proto_getsock)
return conn->handler->proto_getsock(data, conn, socks);
/* Backup getsock logic. Since there is a live socket in use, we must wait
for it or it will be removed from watching when the multi_socket API is
used. */
socks[0] = conn->sock[FIRSTSOCKET];
return GETSOCK_READSOCK(0) | GETSOCK_WRITESOCK(0);
}
/* returns bitmapped flags for this handle and its sockets. The 'socks[]'
array contains MAX_SOCKSPEREASYHANDLE entries. */
static int multi_getsock(struct Curl_easy *data,
curl_socket_t *socks)
{
struct connectdata *conn = data->conn;
/* The no connection case can happen when this is called from
curl_multi_remove_handle() => singlesocket() => multi_getsock().
*/
if(!conn)
return 0;
switch(data->mstate) {
default:
return 0;
case MSTATE_RESOLVING:
return Curl_resolv_getsock(data, socks);
case MSTATE_PROTOCONNECTING:
case MSTATE_PROTOCONNECT:
return protocol_getsock(data, conn, socks);
case MSTATE_DO:
case MSTATE_DOING:
return doing_getsock(data, conn, socks);
case MSTATE_TUNNELING:
return waitproxyconnect_getsock(conn, socks);
case MSTATE_CONNECTING:
return waitconnect_getsock(conn, socks);
case MSTATE_DOING_MORE:
return domore_getsock(data, conn, socks);
case MSTATE_DID: /* since is set after DO is completed, we switch to
waiting for the same as the PERFORMING state */
case MSTATE_PERFORMING:
return Curl_single_getsock(data, conn, socks);
}
}
CURLMcode curl_multi_fdset(struct Curl_multi *multi,
fd_set *read_fd_set, fd_set *write_fd_set,
fd_set *exc_fd_set, int *max_fd)
{
/* Scan through all the easy handles to get the file descriptors set.
Some easy handles may not have connected to the remote host yet,
and then we must make sure that is done. */
struct Curl_easy *data;
int this_max_fd = -1;
curl_socket_t sockbunch[MAX_SOCKSPEREASYHANDLE];
int i;
(void)exc_fd_set; /* not used */
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
data = multi->easyp;
while(data) {
int bitmap;
#ifdef __clang_analyzer_
/* to prevent "The left operand of '>=' is a garbage value" warnings */
memset(sockbunch, 0, sizeof(sockbunch));
#endif
bitmap = multi_getsock(data, sockbunch);
for(i = 0; i< MAX_SOCKSPEREASYHANDLE; i++) {
curl_socket_t s = CURL_SOCKET_BAD;
if((bitmap & GETSOCK_READSOCK(i)) && VALID_SOCK(sockbunch[i])) {
if(!FDSET_SOCK(sockbunch[i]))
/* pretend it doesn't exist */
continue;
FD_SET(sockbunch[i], read_fd_set);
s = sockbunch[i];
}
if((bitmap & GETSOCK_WRITESOCK(i)) && VALID_SOCK(sockbunch[i])) {
if(!FDSET_SOCK(sockbunch[i]))
/* pretend it doesn't exist */
continue;
FD_SET(sockbunch[i], write_fd_set);
s = sockbunch[i];
}
if(s == CURL_SOCKET_BAD)
/* this socket is unused, break out of loop */
break;
if((int)s > this_max_fd)
this_max_fd = (int)s;
}
data = data->next; /* check next handle */
}
*max_fd = this_max_fd;
return CURLM_OK;
}
#define NUM_POLLS_ON_STACK 10
static CURLMcode multi_wait(struct Curl_multi *multi,
struct curl_waitfd extra_fds[],
unsigned int extra_nfds,
int timeout_ms,
int *ret,
bool extrawait, /* when no socket, wait */
bool use_wakeup)
{
struct Curl_easy *data;
curl_socket_t sockbunch[MAX_SOCKSPEREASYHANDLE];
int bitmap;
unsigned int i;
unsigned int nfds = 0;
unsigned int curlfds;
long timeout_internal;
int retcode = 0;
struct pollfd a_few_on_stack[NUM_POLLS_ON_STACK];
struct pollfd *ufds = &a_few_on_stack[0];
bool ufds_malloc = FALSE;
#ifdef USE_WINSOCK
WSANETWORKEVENTS wsa_events;
DEBUGASSERT(multi->wsa_event != WSA_INVALID_EVENT);
#endif
#ifndef ENABLE_WAKEUP
(void)use_wakeup;
#endif
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
if(timeout_ms < 0)
return CURLM_BAD_FUNCTION_ARGUMENT;
/* Count up how many fds we have from the multi handle */
data = multi->easyp;
while(data) {
bitmap = multi_getsock(data, sockbunch);
for(i = 0; i< MAX_SOCKSPEREASYHANDLE; i++) {
curl_socket_t s = CURL_SOCKET_BAD;
if((bitmap & GETSOCK_READSOCK(i)) && VALID_SOCK((sockbunch[i]))) {
++nfds;
s = sockbunch[i];
}
if((bitmap & GETSOCK_WRITESOCK(i)) && VALID_SOCK((sockbunch[i]))) {
++nfds;
s = sockbunch[i];
}
if(s == CURL_SOCKET_BAD) {
break;
}
}
data = data->next; /* check next handle */
}
/* If the internally desired timeout is actually shorter than requested from
the outside, then use the shorter time! But only if the internal timer
is actually larger than -1! */
(void)multi_timeout(multi, &timeout_internal);
if((timeout_internal >= 0) && (timeout_internal < (long)timeout_ms))
timeout_ms = (int)timeout_internal;
curlfds = nfds; /* number of internal file descriptors */
nfds += extra_nfds; /* add the externally provided ones */
#ifdef ENABLE_WAKEUP
#ifdef USE_WINSOCK
if(use_wakeup) {
#else
if(use_wakeup && multi->wakeup_pair[0] != CURL_SOCKET_BAD) {
#endif
++nfds;
}
#endif
if(nfds > NUM_POLLS_ON_STACK) {
/* 'nfds' is a 32 bit value and 'struct pollfd' is typically 8 bytes
big, so at 2^29 sockets this value might wrap. When a process gets
the capability to actually handle over 500 million sockets this
calculation needs a integer overflow check. */
ufds = malloc(nfds * sizeof(struct pollfd));
if(!ufds)
return CURLM_OUT_OF_MEMORY;
ufds_malloc = TRUE;
}
nfds = 0;
/* only do the second loop if we found descriptors in the first stage run
above */
if(curlfds) {
/* Add the curl handles to our pollfds first */
data = multi->easyp;
while(data) {
bitmap = multi_getsock(data, sockbunch);
for(i = 0; i < MAX_SOCKSPEREASYHANDLE; i++) {
curl_socket_t s = CURL_SOCKET_BAD;
#ifdef USE_WINSOCK
long mask = 0;
#endif
if((bitmap & GETSOCK_READSOCK(i)) && VALID_SOCK((sockbunch[i]))) {
s = sockbunch[i];
#ifdef USE_WINSOCK
mask |= FD_READ|FD_ACCEPT|FD_CLOSE;
#endif
ufds[nfds].fd = s;
ufds[nfds].events = POLLIN;
++nfds;
}
if((bitmap & GETSOCK_WRITESOCK(i)) && VALID_SOCK((sockbunch[i]))) {
s = sockbunch[i];
#ifdef USE_WINSOCK
mask |= FD_WRITE|FD_CONNECT|FD_CLOSE;
send(s, NULL, 0, 0); /* reset FD_WRITE */
#endif
ufds[nfds].fd = s;
ufds[nfds].events = POLLOUT;
++nfds;
}
/* s is only set if either being readable or writable is checked */
if(s == CURL_SOCKET_BAD) {
/* break on entry not checked for being readable or writable */
break;
}
#ifdef USE_WINSOCK
if(WSAEventSelect(s, multi->wsa_event, mask) != 0) {
if(ufds_malloc)
free(ufds);
return CURLM_INTERNAL_ERROR;
}
#endif
}
data = data->next; /* check next handle */
}
}
/* Add external file descriptions from poll-like struct curl_waitfd */
for(i = 0; i < extra_nfds; i++) {
#ifdef USE_WINSOCK
long mask = 0;
if(extra_fds[i].events & CURL_WAIT_POLLIN)
mask |= FD_READ|FD_ACCEPT|FD_CLOSE;
if(extra_fds[i].events & CURL_WAIT_POLLPRI)
mask |= FD_OOB;
if(extra_fds[i].events & CURL_WAIT_POLLOUT) {
mask |= FD_WRITE|FD_CONNECT|FD_CLOSE;
send(extra_fds[i].fd, NULL, 0, 0); /* reset FD_WRITE */
}
if(WSAEventSelect(extra_fds[i].fd, multi->wsa_event, mask) != 0) {
if(ufds_malloc)
free(ufds);
return CURLM_INTERNAL_ERROR;
}
#endif
ufds[nfds].fd = extra_fds[i].fd;
ufds[nfds].events = 0;
if(extra_fds[i].events & CURL_WAIT_POLLIN)
ufds[nfds].events |= POLLIN;
if(extra_fds[i].events & CURL_WAIT_POLLPRI)
ufds[nfds].events |= POLLPRI;
if(extra_fds[i].events & CURL_WAIT_POLLOUT)
ufds[nfds].events |= POLLOUT;
++nfds;
}
#ifdef ENABLE_WAKEUP
#ifndef USE_WINSOCK
if(use_wakeup && multi->wakeup_pair[0] != CURL_SOCKET_BAD) {
ufds[nfds].fd = multi->wakeup_pair[0];
ufds[nfds].events = POLLIN;
++nfds;
}
#endif
#endif
#if defined(ENABLE_WAKEUP) && defined(USE_WINSOCK)
if(nfds || use_wakeup) {
#else
if(nfds) {
#endif
int pollrc;
#ifdef USE_WINSOCK
if(nfds)
pollrc = Curl_poll(ufds, nfds, 0); /* just pre-check with WinSock */
else
pollrc = 0;
if(pollrc <= 0) /* now wait... if not ready during the pre-check above */
WSAWaitForMultipleEvents(1, &multi->wsa_event, FALSE, timeout_ms, FALSE);
#else
pollrc = Curl_poll(ufds, nfds, timeout_ms); /* wait... */
#endif
if(pollrc > 0) {
retcode = pollrc;
#ifdef USE_WINSOCK
}
/* With WinSock, we have to run the following section unconditionally
to call WSAEventSelect(fd, event, 0) on all the sockets */
{
#endif
/* copy revents results from the poll to the curl_multi_wait poll
struct, the bit values of the actual underlying poll() implementation
may not be the same as the ones in the public libcurl API! */
for(i = 0; i < extra_nfds; i++) {
unsigned r = ufds[curlfds + i].revents;
unsigned short mask = 0;
#ifdef USE_WINSOCK
wsa_events.lNetworkEvents = 0;
if(WSAEnumNetworkEvents(extra_fds[i].fd, NULL, &wsa_events) == 0) {
if(wsa_events.lNetworkEvents & (FD_READ|FD_ACCEPT|FD_CLOSE))
mask |= CURL_WAIT_POLLIN;
if(wsa_events.lNetworkEvents & (FD_WRITE|FD_CONNECT|FD_CLOSE))
mask |= CURL_WAIT_POLLOUT;
if(wsa_events.lNetworkEvents & FD_OOB)
mask |= CURL_WAIT_POLLPRI;
if(ret && pollrc <= 0 && wsa_events.lNetworkEvents)
retcode++;
}
WSAEventSelect(extra_fds[i].fd, multi->wsa_event, 0);
if(pollrc <= 0)
continue;
#endif
if(r & POLLIN)
mask |= CURL_WAIT_POLLIN;
if(r & POLLOUT)
mask |= CURL_WAIT_POLLOUT;
if(r & POLLPRI)
mask |= CURL_WAIT_POLLPRI;
extra_fds[i].revents = mask;
}
#ifdef USE_WINSOCK
/* Count up all our own sockets that had activity,
and remove them from the event. */
if(curlfds) {
data = multi->easyp;
while(data) {
bitmap = multi_getsock(data, sockbunch);
for(i = 0; i < MAX_SOCKSPEREASYHANDLE; i++) {
if(bitmap & (GETSOCK_READSOCK(i) | GETSOCK_WRITESOCK(i))) {
wsa_events.lNetworkEvents = 0;
if(WSAEnumNetworkEvents(sockbunch[i], NULL, &wsa_events) == 0) {
if(ret && pollrc <= 0 && wsa_events.lNetworkEvents)
retcode++;
}
WSAEventSelect(sockbunch[i], multi->wsa_event, 0);
}
else {
/* break on entry not checked for being readable or writable */
break;
}
}
data = data->next;
}
}
WSAResetEvent(multi->wsa_event);
#else
#ifdef ENABLE_WAKEUP
if(use_wakeup && multi->wakeup_pair[0] != CURL_SOCKET_BAD) {
if(ufds[curlfds + extra_nfds].revents & POLLIN) {
char buf[64];
ssize_t nread;
while(1) {
/* the reading socket is non-blocking, try to read
data from it until it receives an error (except EINTR).
In normal cases it will get EAGAIN or EWOULDBLOCK
when there is no more data, breaking the loop. */
nread = sread(multi->wakeup_pair[0], buf, sizeof(buf));
if(nread <= 0) {
if(nread < 0 && EINTR == SOCKERRNO)
continue;
break;
}
}
/* do not count the wakeup socket into the returned value */
retcode--;
}
}
#endif
#endif
}
}
if(ufds_malloc)
free(ufds);
if(ret)
*ret = retcode;
#if defined(ENABLE_WAKEUP) && defined(USE_WINSOCK)
if(extrawait && !nfds && !use_wakeup) {
#else
if(extrawait && !nfds) {
#endif
long sleep_ms = 0;
/* Avoid busy-looping when there's nothing particular to wait for */
if(!curl_multi_timeout(multi, &sleep_ms) && sleep_ms) {
if(sleep_ms > timeout_ms)
sleep_ms = timeout_ms;
/* when there are no easy handles in the multi, this holds a -1
timeout */
else if(sleep_ms < 0)
sleep_ms = timeout_ms;
Curl_wait_ms(sleep_ms);
}
}
return CURLM_OK;
}
CURLMcode curl_multi_wait(struct Curl_multi *multi,
struct curl_waitfd extra_fds[],
unsigned int extra_nfds,
int timeout_ms,
int *ret)
{
return multi_wait(multi, extra_fds, extra_nfds, timeout_ms, ret, FALSE,
FALSE);
}
CURLMcode curl_multi_poll(struct Curl_multi *multi,
struct curl_waitfd extra_fds[],
unsigned int extra_nfds,
int timeout_ms,
int *ret)
{
return multi_wait(multi, extra_fds, extra_nfds, timeout_ms, ret, TRUE,
TRUE);
}
CURLMcode curl_multi_wakeup(struct Curl_multi *multi)
{
/* this function is usually called from another thread,
it has to be careful only to access parts of the
Curl_multi struct that are constant */
/* GOOD_MULTI_HANDLE can be safely called */
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
#ifdef ENABLE_WAKEUP
#ifdef USE_WINSOCK
if(WSASetEvent(multi->wsa_event))
return CURLM_OK;
#else
/* the wakeup_pair variable is only written during init and cleanup,
making it safe to access from another thread after the init part
and before cleanup */
if(multi->wakeup_pair[1] != CURL_SOCKET_BAD) {
char buf[1];
buf[0] = 1;
while(1) {
/* swrite() is not thread-safe in general, because concurrent calls
can have their messages interleaved, but in this case the content
of the messages does not matter, which makes it ok to call.
The write socket is set to non-blocking, this way this function
cannot block, making it safe to call even from the same thread
that will call curl_multi_wait(). If swrite() returns that it
would block, it's considered successful because it means that
previous calls to this function will wake up the poll(). */
if(swrite(multi->wakeup_pair[1], buf, sizeof(buf)) < 0) {
int err = SOCKERRNO;
int return_success;
#ifdef USE_WINSOCK
return_success = WSAEWOULDBLOCK == err;
#else
if(EINTR == err)
continue;
return_success = EWOULDBLOCK == err || EAGAIN == err;
#endif
if(!return_success)
return CURLM_WAKEUP_FAILURE;
}
return CURLM_OK;
}
}
#endif
#endif
return CURLM_WAKEUP_FAILURE;
}
/*
* multi_ischanged() is called
*
* Returns TRUE/FALSE whether the state is changed to trigger a CONNECT_PEND
* => CONNECT action.
*
* Set 'clear' to TRUE to have it also clear the state variable.
*/
static bool multi_ischanged(struct Curl_multi *multi, bool clear)
{
bool retval = multi->recheckstate;
if(clear)
multi->recheckstate = FALSE;
return retval;
}
CURLMcode Curl_multi_add_perform(struct Curl_multi *multi,
struct Curl_easy *data,
struct connectdata *conn)
{
CURLMcode rc;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
rc = curl_multi_add_handle(multi, data);
if(!rc) {
struct SingleRequest *k = &data->req;
/* pass in NULL for 'conn' here since we don't want to init the
connection, only this transfer */
Curl_init_do(data, NULL);
/* take this handle to the perform state right away */
multistate(data, MSTATE_PERFORMING);
Curl_attach_connnection(data, conn);
k->keepon |= KEEP_RECV; /* setup to receive! */
}
return rc;
}
static CURLcode multi_do(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
DEBUGASSERT(conn);
DEBUGASSERT(conn->handler);
if(conn->handler->do_it)
/* generic protocol-specific function pointer set in curl_connect() */
result = conn->handler->do_it(data, done);
return result;
}
/*
* multi_do_more() is called during the DO_MORE multi state. It is basically a
* second stage DO state which (wrongly) was introduced to support FTP's
* second connection.
*
* 'complete' can return 0 for incomplete, 1 for done and -1 for go back to
* DOING state there's more work to do!
*/
static CURLcode multi_do_more(struct Curl_easy *data, int *complete)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
*complete = 0;
if(conn->handler->do_more)
result = conn->handler->do_more(data, complete);
return result;
}
/*
* Check whether a timeout occurred, and handle it if it did
*/
static bool multi_handle_timeout(struct Curl_easy *data,
struct curltime *now,
bool *stream_error,
CURLcode *result,
bool connect_timeout)
{
timediff_t timeout_ms;
timeout_ms = Curl_timeleft(data, now, connect_timeout);
if(timeout_ms < 0) {
/* Handle timed out */
if(data->mstate == MSTATE_RESOLVING)
failf(data, "Resolving timed out after %" CURL_FORMAT_TIMEDIFF_T
" milliseconds",
Curl_timediff(*now, data->progress.t_startsingle));
else if(data->mstate == MSTATE_CONNECTING)
failf(data, "Connection timed out after %" CURL_FORMAT_TIMEDIFF_T
" milliseconds",
Curl_timediff(*now, data->progress.t_startsingle));
else {
struct SingleRequest *k = &data->req;
if(k->size != -1) {
failf(data, "Operation timed out after %" CURL_FORMAT_TIMEDIFF_T
" milliseconds with %" CURL_FORMAT_CURL_OFF_T " out of %"
CURL_FORMAT_CURL_OFF_T " bytes received",
Curl_timediff(*now, data->progress.t_startsingle),
k->bytecount, k->size);
}
else {
failf(data, "Operation timed out after %" CURL_FORMAT_TIMEDIFF_T
" milliseconds with %" CURL_FORMAT_CURL_OFF_T
" bytes received",
Curl_timediff(*now, data->progress.t_startsingle),
k->bytecount);
}
}
/* Force connection closed if the connection has indeed been used */
if(data->mstate > MSTATE_DO) {
streamclose(data->conn, "Disconnected with pending data");
*stream_error = TRUE;
}
*result = CURLE_OPERATION_TIMEDOUT;
(void)multi_done(data, *result, TRUE);
}
return (timeout_ms < 0);
}
/*
* We are doing protocol-specific connecting and this is being called over and
* over from the multi interface until the connection phase is done on
* protocol layer.
*/
static CURLcode protocol_connecting(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(conn && conn->handler->connecting) {
*done = FALSE;
result = conn->handler->connecting(data, done);
}
else
*done = TRUE;
return result;
}
/*
* We are DOING this is being called over and over from the multi interface
* until the DOING phase is done on protocol layer.
*/
static CURLcode protocol_doing(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(conn && conn->handler->doing) {
*done = FALSE;
result = conn->handler->doing(data, done);
}
else
*done = TRUE;
return result;
}
/*
* We have discovered that the TCP connection has been successful, we can now
* proceed with some action.
*
*/
static CURLcode protocol_connect(struct Curl_easy *data,
bool *protocol_done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
DEBUGASSERT(conn);
DEBUGASSERT(protocol_done);
*protocol_done = FALSE;
if(conn->bits.tcpconnect[FIRSTSOCKET] && conn->bits.protoconnstart) {
/* We already are connected, get back. This may happen when the connect
worked fine in the first call, like when we connect to a local server
or proxy. Note that we don't know if the protocol is actually done.
Unless this protocol doesn't have any protocol-connect callback, as
then we know we're done. */
if(!conn->handler->connecting)
*protocol_done = TRUE;
return CURLE_OK;
}
if(!conn->bits.protoconnstart) {
#ifndef CURL_DISABLE_PROXY
result = Curl_proxy_connect(data, FIRSTSOCKET);
if(result)
return result;
if(CONNECT_FIRSTSOCKET_PROXY_SSL())
/* wait for HTTPS proxy SSL initialization to complete */
return CURLE_OK;
if(conn->bits.tunnel_proxy && conn->bits.httpproxy &&
Curl_connect_ongoing(conn))
/* when using an HTTP tunnel proxy, await complete tunnel establishment
before proceeding further. Return CURLE_OK so we'll be called again */
return CURLE_OK;
#endif
if(conn->handler->connect_it) {
/* is there a protocol-specific connect() procedure? */
/* Call the protocol-specific connect function */
result = conn->handler->connect_it(data, protocol_done);
}
else
*protocol_done = TRUE;
/* it has started, possibly even completed but that knowledge isn't stored
in this bit! */
if(!result)
conn->bits.protoconnstart = TRUE;
}
return result; /* pass back status */
}
/*
* Curl_preconnect() is called immediately before a connect starts. When a
* redirect is followed, this is then called multiple times during a single
* transfer.
*/
CURLcode Curl_preconnect(struct Curl_easy *data)
{
if(!data->state.buffer) {
data->state.buffer = malloc(data->set.buffer_size + 1);
if(!data->state.buffer)
return CURLE_OUT_OF_MEMORY;
}
return CURLE_OK;
}
static CURLMcode multi_runsingle(struct Curl_multi *multi,
struct curltime *nowp,
struct Curl_easy *data)
{
struct Curl_message *msg = NULL;
bool connected;
bool async;
bool protocol_connected = FALSE;
bool dophase_done = FALSE;
bool done = FALSE;
CURLMcode rc;
CURLcode result = CURLE_OK;
timediff_t recv_timeout_ms;
timediff_t send_timeout_ms;
int control;
if(!GOOD_EASY_HANDLE(data))
return CURLM_BAD_EASY_HANDLE;
do {
/* A "stream" here is a logical stream if the protocol can handle that
(HTTP/2), or the full connection for older protocols */
bool stream_error = FALSE;
rc = CURLM_OK;
if(multi_ischanged(multi, TRUE)) {
DEBUGF(infof(data, "multi changed, check CONNECT_PEND queue!"));
process_pending_handles(multi); /* multiplexed */
}
if(data->mstate > MSTATE_CONNECT &&
data->mstate < MSTATE_COMPLETED) {
/* Make sure we set the connection's current owner */
DEBUGASSERT(data->conn);
if(!data->conn)
return CURLM_INTERNAL_ERROR;
}
if(data->conn &&
(data->mstate >= MSTATE_CONNECT) &&
(data->mstate < MSTATE_COMPLETED)) {
/* Check for overall operation timeout here but defer handling the
* connection timeout to later, to allow for a connection to be set up
* in the window since we last checked timeout. This prevents us
* tearing down a completed connection in the case where we were slow
* to check the timeout (e.g. process descheduled during this loop).
* We set connect_timeout=FALSE to do this. */
/* we need to wait for the connect state as only then is the start time
stored, but we must not check already completed handles */
if(multi_handle_timeout(data, nowp, &stream_error, &result, FALSE)) {
/* Skip the statemachine and go directly to error handling section. */
goto statemachine_end;
}
}
switch(data->mstate) {
case MSTATE_INIT:
/* init this transfer. */
result = Curl_pretransfer(data);
if(!result) {
/* after init, go CONNECT */
multistate(data, MSTATE_CONNECT);
*nowp = Curl_pgrsTime(data, TIMER_STARTOP);
rc = CURLM_CALL_MULTI_PERFORM;
}
break;
case MSTATE_PENDING:
/* We will stay here until there is a connection available. Then
we try again in the MSTATE_CONNECT state. */
break;
case MSTATE_CONNECT:
/* Connect. We want to get a connection identifier filled in. */
/* init this transfer. */
result = Curl_preconnect(data);
if(result)
break;
*nowp = Curl_pgrsTime(data, TIMER_STARTSINGLE);
if(data->set.timeout)
Curl_expire(data, data->set.timeout, EXPIRE_TIMEOUT);
if(data->set.connecttimeout)
Curl_expire(data, data->set.connecttimeout, EXPIRE_CONNECTTIMEOUT);
result = Curl_connect(data, &async, &protocol_connected);
if(CURLE_NO_CONNECTION_AVAILABLE == result) {
/* There was no connection available. We will go to the pending
state and wait for an available connection. */
multistate(data, MSTATE_PENDING);
/* add this handle to the list of connect-pending handles */
Curl_llist_insert_next(&multi->pending, multi->pending.tail, data,
&data->connect_queue);
result = CURLE_OK;
break;
}
else if(data->state.previouslypending) {
/* this transfer comes from the pending queue so try move another */
infof(data, "Transfer was pending, now try another");
process_pending_handles(data->multi);
}
if(!result) {
if(async)
/* We're now waiting for an asynchronous name lookup */
multistate(data, MSTATE_RESOLVING);
else {
/* after the connect has been sent off, go WAITCONNECT unless the
protocol connect is already done and we can go directly to
WAITDO or DO! */
rc = CURLM_CALL_MULTI_PERFORM;
if(protocol_connected)
multistate(data, MSTATE_DO);
else {
#ifndef CURL_DISABLE_HTTP
if(Curl_connect_ongoing(data->conn))
multistate(data, MSTATE_TUNNELING);
else
#endif
multistate(data, MSTATE_CONNECTING);
}
}
}
break;
case MSTATE_RESOLVING:
/* awaiting an asynch name resolve to complete */
{
struct Curl_dns_entry *dns = NULL;
struct connectdata *conn = data->conn;
const char *hostname;
DEBUGASSERT(conn);
#ifndef CURL_DISABLE_PROXY
if(conn->bits.httpproxy)
hostname = conn->http_proxy.host.name;
else
#endif
if(conn->bits.conn_to_host)
hostname = conn->conn_to_host.name;
else
hostname = conn->host.name;
/* check if we have the name resolved by now */
dns = Curl_fetch_addr(data, hostname, (int)conn->port);
if(dns) {
#ifdef CURLRES_ASYNCH
data->state.async.dns = dns;
data->state.async.done = TRUE;
#endif
result = CURLE_OK;
infof(data, "Hostname '%s' was found in DNS cache", hostname);
}
if(!dns)
result = Curl_resolv_check(data, &dns);
/* Update sockets here, because the socket(s) may have been
closed and the application thus needs to be told, even if it
is likely that the same socket(s) will again be used further
down. If the name has not yet been resolved, it is likely
that new sockets have been opened in an attempt to contact
another resolver. */
singlesocket(multi, data);
if(dns) {
/* Perform the next step in the connection phase, and then move on
to the WAITCONNECT state */
result = Curl_once_resolved(data, &protocol_connected);
if(result)
/* if Curl_once_resolved() returns failure, the connection struct
is already freed and gone */
data->conn = NULL; /* no more connection */
else {
/* call again please so that we get the next socket setup */
rc = CURLM_CALL_MULTI_PERFORM;
if(protocol_connected)
multistate(data, MSTATE_DO);
else {
#ifndef CURL_DISABLE_HTTP
if(Curl_connect_ongoing(data->conn))
multistate(data, MSTATE_TUNNELING);
else
#endif
multistate(data, MSTATE_CONNECTING);
}
}
}
if(result) {
/* failure detected */
stream_error = TRUE;
break;
}
}
break;
#ifndef CURL_DISABLE_HTTP
case MSTATE_TUNNELING:
/* this is HTTP-specific, but sending CONNECT to a proxy is HTTP... */
DEBUGASSERT(data->conn);
result = Curl_http_connect(data, &protocol_connected);
#ifndef CURL_DISABLE_PROXY
if(data->conn->bits.proxy_connect_closed) {
rc = CURLM_CALL_MULTI_PERFORM;
/* connect back to proxy again */
result = CURLE_OK;
multi_done(data, CURLE_OK, FALSE);
multistate(data, MSTATE_CONNECT);
}
else
#endif
if(!result) {
if(
#ifndef CURL_DISABLE_PROXY
(data->conn->http_proxy.proxytype != CURLPROXY_HTTPS ||
data->conn->bits.proxy_ssl_connected[FIRSTSOCKET]) &&
#endif
Curl_connect_complete(data->conn)) {
rc = CURLM_CALL_MULTI_PERFORM;
/* initiate protocol connect phase */
multistate(data, MSTATE_PROTOCONNECT);
}
}
else
stream_error = TRUE;
break;
#endif
case MSTATE_CONNECTING:
/* awaiting a completion of an asynch TCP connect */
DEBUGASSERT(data->conn);
result = Curl_is_connected(data, data->conn, FIRSTSOCKET, &connected);
if(connected && !result) {
#ifndef CURL_DISABLE_HTTP
if(
#ifndef CURL_DISABLE_PROXY
(data->conn->http_proxy.proxytype == CURLPROXY_HTTPS &&
!data->conn->bits.proxy_ssl_connected[FIRSTSOCKET]) ||
#endif
Curl_connect_ongoing(data->conn)) {
multistate(data, MSTATE_TUNNELING);
break;
}
#endif
rc = CURLM_CALL_MULTI_PERFORM;
#ifndef CURL_DISABLE_PROXY
multistate(data,
data->conn->bits.tunnel_proxy?
MSTATE_TUNNELING : MSTATE_PROTOCONNECT);
#else
multistate(data, MSTATE_PROTOCONNECT);
#endif
}
else if(result) {
/* failure detected */
Curl_posttransfer(data);
multi_done(data, result, TRUE);
stream_error = TRUE;
break;
}
break;
case MSTATE_PROTOCONNECT:
result = protocol_connect(data, &protocol_connected);
if(!result && !protocol_connected)
/* switch to waiting state */
multistate(data, MSTATE_PROTOCONNECTING);
else if(!result) {
/* protocol connect has completed, go WAITDO or DO */
multistate(data, MSTATE_DO);
rc = CURLM_CALL_MULTI_PERFORM;
}
else {
/* failure detected */
Curl_posttransfer(data);
multi_done(data, result, TRUE);
stream_error = TRUE;
}
break;
case MSTATE_PROTOCONNECTING:
/* protocol-specific connect phase */
result = protocol_connecting(data, &protocol_connected);
if(!result && protocol_connected) {
/* after the connect has completed, go WAITDO or DO */
multistate(data, MSTATE_DO);
rc = CURLM_CALL_MULTI_PERFORM;
}
else if(result) {
/* failure detected */
Curl_posttransfer(data);
multi_done(data, result, TRUE);
stream_error = TRUE;
}
break;
case MSTATE_DO:
if(data->set.fprereq) {
int prereq_rc;
/* call the prerequest callback function */
Curl_set_in_callback(data, true);
prereq_rc = data->set.fprereq(data->set.prereq_userp,
data->info.conn_primary_ip,
data->info.conn_local_ip,
data->info.conn_primary_port,
data->info.conn_local_port);
Curl_set_in_callback(data, false);
if(prereq_rc != CURL_PREREQFUNC_OK) {
failf(data, "operation aborted by pre-request callback");
/* failure in pre-request callback - don't do any other processing */
result = CURLE_ABORTED_BY_CALLBACK;
Curl_posttransfer(data);
multi_done(data, result, FALSE);
stream_error = TRUE;
break;
}
}
if(data->set.connect_only) {
/* keep connection open for application to use the socket */
connkeep(data->conn, "CONNECT_ONLY");
multistate(data, MSTATE_DONE);
result = CURLE_OK;
rc = CURLM_CALL_MULTI_PERFORM;
}
else {
/* Perform the protocol's DO action */
result = multi_do(data, &dophase_done);
/* When multi_do() returns failure, data->conn might be NULL! */
if(!result) {
if(!dophase_done) {
#ifndef CURL_DISABLE_FTP
/* some steps needed for wildcard matching */
if(data->state.wildcardmatch) {
struct WildcardData *wc = &data->wildcard;
if(wc->state == CURLWC_DONE || wc->state == CURLWC_SKIP) {
/* skip some states if it is important */
multi_done(data, CURLE_OK, FALSE);
/* if there's no connection left, skip the DONE state */
multistate(data, data->conn ?
MSTATE_DONE : MSTATE_COMPLETED);
rc = CURLM_CALL_MULTI_PERFORM;
break;
}
}
#endif
/* DO was not completed in one function call, we must continue
DOING... */
multistate(data, MSTATE_DOING);
rc = CURLM_OK;
}
/* after DO, go DO_DONE... or DO_MORE */
else if(data->conn->bits.do_more) {
/* we're supposed to do more, but we need to sit down, relax
and wait a little while first */
multistate(data, MSTATE_DOING_MORE);
rc = CURLM_OK;
}
else {
/* we're done with the DO, now DID */
multistate(data, MSTATE_DID);
rc = CURLM_CALL_MULTI_PERFORM;
}
}
else if((CURLE_SEND_ERROR == result) &&
data->conn->bits.reuse) {
/*
* In this situation, a connection that we were trying to use
* may have unexpectedly died. If possible, send the connection
* back to the CONNECT phase so we can try again.
*/
char *newurl = NULL;
followtype follow = FOLLOW_NONE;
CURLcode drc;
drc = Curl_retry_request(data, &newurl);
if(drc) {
/* a failure here pretty much implies an out of memory */
result = drc;
stream_error = TRUE;
}
Curl_posttransfer(data);
drc = multi_done(data, result, FALSE);
/* When set to retry the connection, we must to go back to
* the CONNECT state */
if(newurl) {
if(!drc || (drc == CURLE_SEND_ERROR)) {
follow = FOLLOW_RETRY;
drc = Curl_follow(data, newurl, follow);
if(!drc) {
multistate(data, MSTATE_CONNECT);
rc = CURLM_CALL_MULTI_PERFORM;
result = CURLE_OK;
}
else {
/* Follow failed */
result = drc;
}
}
else {
/* done didn't return OK or SEND_ERROR */
result = drc;
}
}
else {
/* Have error handler disconnect conn if we can't retry */
stream_error = TRUE;
}
free(newurl);
}
else {
/* failure detected */
Curl_posttransfer(data);
if(data->conn)
multi_done(data, result, FALSE);
stream_error = TRUE;
}
}
break;
case MSTATE_DOING:
/* we continue DOING until the DO phase is complete */
DEBUGASSERT(data->conn);
result = protocol_doing(data, &dophase_done);
if(!result) {
if(dophase_done) {
/* after DO, go DO_DONE or DO_MORE */
multistate(data, data->conn->bits.do_more?
MSTATE_DOING_MORE : MSTATE_DID);
rc = CURLM_CALL_MULTI_PERFORM;
} /* dophase_done */
}
else {
/* failure detected */
Curl_posttransfer(data);
multi_done(data, result, FALSE);
stream_error = TRUE;
}
break;
case MSTATE_DOING_MORE:
/*
* When we are connected, DOING MORE and then go DID
*/
DEBUGASSERT(data->conn);
result = multi_do_more(data, &control);
if(!result) {
if(control) {
/* if positive, advance to DO_DONE
if negative, go back to DOING */
multistate(data, control == 1?
MSTATE_DID : MSTATE_DOING);
rc = CURLM_CALL_MULTI_PERFORM;
}
else
/* stay in DO_MORE */
rc = CURLM_OK;
}
else {
/* failure detected */
Curl_posttransfer(data);
multi_done(data, result, FALSE);
stream_error = TRUE;
}
break;
case MSTATE_DID:
DEBUGASSERT(data->conn);
if(data->conn->bits.multiplex)
/* Check if we can move pending requests to send pipe */
process_pending_handles(multi); /* multiplexed */
/* Only perform the transfer if there's a good socket to work with.
Having both BAD is a signal to skip immediately to DONE */
if((data->conn->sockfd != CURL_SOCKET_BAD) ||
(data->conn->writesockfd != CURL_SOCKET_BAD))
multistate(data, MSTATE_PERFORMING);
else {
#ifndef CURL_DISABLE_FTP
if(data->state.wildcardmatch &&
((data->conn->handler->flags & PROTOPT_WILDCARD) == 0)) {
data->wildcard.state = CURLWC_DONE;
}
#endif
multistate(data, MSTATE_DONE);
}
rc = CURLM_CALL_MULTI_PERFORM;
break;
case MSTATE_RATELIMITING: /* limit-rate exceeded in either direction */
DEBUGASSERT(data->conn);
/* if both rates are within spec, resume transfer */
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, *nowp);
if(result) {
if(!(data->conn->handler->flags & PROTOPT_DUAL) &&
result != CURLE_HTTP2_STREAM)
streamclose(data->conn, "Transfer returned error");
Curl_posttransfer(data);
multi_done(data, result, TRUE);
}
else {
send_timeout_ms = 0;
if(data->set.max_send_speed)
send_timeout_ms =
Curl_pgrsLimitWaitTime(data->progress.uploaded,
data->progress.ul_limit_size,
data->set.max_send_speed,
data->progress.ul_limit_start,
*nowp);
recv_timeout_ms = 0;
if(data->set.max_recv_speed)
recv_timeout_ms =
Curl_pgrsLimitWaitTime(data->progress.downloaded,
data->progress.dl_limit_size,
data->set.max_recv_speed,
data->progress.dl_limit_start,
*nowp);
if(!send_timeout_ms && !recv_timeout_ms) {
multistate(data, MSTATE_PERFORMING);
Curl_ratelimit(data, *nowp);
}
else if(send_timeout_ms >= recv_timeout_ms)
Curl_expire(data, send_timeout_ms, EXPIRE_TOOFAST);
else
Curl_expire(data, recv_timeout_ms, EXPIRE_TOOFAST);
}
break;
case MSTATE_PERFORMING:
{
char *newurl = NULL;
bool retry = FALSE;
bool comeback = FALSE;
DEBUGASSERT(data->state.buffer);
/* check if over send speed */
send_timeout_ms = 0;
if(data->set.max_send_speed)
send_timeout_ms = Curl_pgrsLimitWaitTime(data->progress.uploaded,
data->progress.ul_limit_size,
data->set.max_send_speed,
data->progress.ul_limit_start,
*nowp);
/* check if over recv speed */
recv_timeout_ms = 0;
if(data->set.max_recv_speed)
recv_timeout_ms = Curl_pgrsLimitWaitTime(data->progress.downloaded,
data->progress.dl_limit_size,
data->set.max_recv_speed,
data->progress.dl_limit_start,
*nowp);
if(send_timeout_ms || recv_timeout_ms) {
Curl_ratelimit(data, *nowp);
multistate(data, MSTATE_RATELIMITING);
if(send_timeout_ms >= recv_timeout_ms)
Curl_expire(data, send_timeout_ms, EXPIRE_TOOFAST);
else
Curl_expire(data, recv_timeout_ms, EXPIRE_TOOFAST);
break;
}
/* read/write data if it is ready to do so */
result = Curl_readwrite(data->conn, data, &done, &comeback);
if(done || (result == CURLE_RECV_ERROR)) {
/* If CURLE_RECV_ERROR happens early enough, we assume it was a race
* condition and the server closed the re-used connection exactly when
* we wanted to use it, so figure out if that is indeed the case.
*/
CURLcode ret = Curl_retry_request(data, &newurl);
if(!ret)
retry = (newurl)?TRUE:FALSE;
else if(!result)
result = ret;
if(retry) {
/* if we are to retry, set the result to OK and consider the
request as done */
result = CURLE_OK;
done = TRUE;
}
}
else if((CURLE_HTTP2_STREAM == result) &&
Curl_h2_http_1_1_error(data)) {
CURLcode ret = Curl_retry_request(data, &newurl);
if(!ret) {
infof(data, "Downgrades to HTTP/1.1!");
streamclose(data->conn, "Disconnect HTTP/2 for HTTP/1");
data->state.httpwant = CURL_HTTP_VERSION_1_1;
/* clear the error message bit too as we ignore the one we got */
data->state.errorbuf = FALSE;
if(!newurl)
/* typically for HTTP_1_1_REQUIRED error on first flight */
newurl = strdup(data->state.url);
/* if we are to retry, set the result to OK and consider the request
as done */
retry = TRUE;
result = CURLE_OK;
done = TRUE;
}
else
result = ret;
}
if(result) {
/*
* The transfer phase returned error, we mark the connection to get
* closed to prevent being re-used. This is because we can't possibly
* know if the connection is in a good shape or not now. Unless it is
* a protocol which uses two "channels" like FTP, as then the error
* happened in the data connection.
*/
if(!(data->conn->handler->flags & PROTOPT_DUAL) &&
result != CURLE_HTTP2_STREAM)
streamclose(data->conn, "Transfer returned error");
Curl_posttransfer(data);
multi_done(data, result, TRUE);
}
else if(done) {
/* call this even if the readwrite function returned error */
Curl_posttransfer(data);
/* When we follow redirects or is set to retry the connection, we must
to go back to the CONNECT state */
if(data->req.newurl || retry) {
followtype follow = FOLLOW_NONE;
if(!retry) {
/* if the URL is a follow-location and not just a retried request
then figure out the URL here */
free(newurl);
newurl = data->req.newurl;
data->req.newurl = NULL;
follow = FOLLOW_REDIR;
}
else
follow = FOLLOW_RETRY;
(void)multi_done(data, CURLE_OK, FALSE);
/* multi_done() might return CURLE_GOT_NOTHING */
result = Curl_follow(data, newurl, follow);
if(!result) {
multistate(data, MSTATE_CONNECT);
rc = CURLM_CALL_MULTI_PERFORM;
}
free(newurl);
}
else {
/* after the transfer is done, go DONE */
/* but first check to see if we got a location info even though we're
not following redirects */
if(data->req.location) {
free(newurl);
newurl = data->req.location;
data->req.location = NULL;
result = Curl_follow(data, newurl, FOLLOW_FAKE);
free(newurl);
if(result) {
stream_error = TRUE;
result = multi_done(data, result, TRUE);
}
}
if(!result) {
multistate(data, MSTATE_DONE);
rc = CURLM_CALL_MULTI_PERFORM;
}
}
}
else if(comeback) {
/* This avoids CURLM_CALL_MULTI_PERFORM so that a very fast transfer
won't get stuck on this transfer at the expense of other concurrent
transfers */
Curl_expire(data, 0, EXPIRE_RUN_NOW);
rc = CURLM_OK;
}
break;
}
case MSTATE_DONE:
/* this state is highly transient, so run another loop after this */
rc = CURLM_CALL_MULTI_PERFORM;
if(data->conn) {
CURLcode res;
if(data->conn->bits.multiplex)
/* Check if we can move pending requests to connection */
process_pending_handles(multi); /* multiplexing */
/* post-transfer command */
res = multi_done(data, result, FALSE);
/* allow a previously set error code take precedence */
if(!result)
result = res;
}
#ifndef CURL_DISABLE_FTP
if(data->state.wildcardmatch) {
if(data->wildcard.state != CURLWC_DONE) {
/* if a wildcard is set and we are not ending -> lets start again
with MSTATE_INIT */
multistate(data, MSTATE_INIT);
break;
}
}
#endif
/* after we have DONE what we're supposed to do, go COMPLETED, and
it doesn't matter what the multi_done() returned! */
multistate(data, MSTATE_COMPLETED);
break;
case MSTATE_COMPLETED:
break;
case MSTATE_MSGSENT:
data->result = result;
return CURLM_OK; /* do nothing */
default:
return CURLM_INTERNAL_ERROR;
}
if(data->conn &&
data->mstate >= MSTATE_CONNECT &&
data->mstate < MSTATE_DO &&
rc != CURLM_CALL_MULTI_PERFORM &&
!multi_ischanged(multi, false)) {
/* We now handle stream timeouts if and only if this will be the last
* loop iteration. We only check this on the last iteration to ensure
* that if we know we have additional work to do immediately
* (i.e. CURLM_CALL_MULTI_PERFORM == TRUE) then we should do that before
* declaring the connection timed out as we may almost have a completed
* connection. */
multi_handle_timeout(data, nowp, &stream_error, &result, TRUE);
}
statemachine_end:
if(data->mstate < MSTATE_COMPLETED) {
if(result) {
/*
* If an error was returned, and we aren't in completed state now,
* then we go to completed and consider this transfer aborted.
*/
/* NOTE: no attempt to disconnect connections must be made
in the case blocks above - cleanup happens only here */
/* Check if we can move pending requests to send pipe */
process_pending_handles(multi); /* connection */
if(data->conn) {
if(stream_error) {
/* Don't attempt to send data over a connection that timed out */
bool dead_connection = result == CURLE_OPERATION_TIMEDOUT;
struct connectdata *conn = data->conn;
/* This is where we make sure that the conn pointer is reset.
We don't have to do this in every case block above where a
failure is detected */
Curl_detach_connnection(data);
/* remove connection from cache */
Curl_conncache_remove_conn(data, conn, TRUE);
/* disconnect properly */
Curl_disconnect(data, conn, dead_connection);
}
}
else if(data->mstate == MSTATE_CONNECT) {
/* Curl_connect() failed */
(void)Curl_posttransfer(data);
}
multistate(data, MSTATE_COMPLETED);
rc = CURLM_CALL_MULTI_PERFORM;
}
/* if there's still a connection to use, call the progress function */
else if(data->conn && Curl_pgrsUpdate(data)) {
/* aborted due to progress callback return code must close the
connection */
result = CURLE_ABORTED_BY_CALLBACK;
streamclose(data->conn, "Aborted by callback");
/* if not yet in DONE state, go there, otherwise COMPLETED */
multistate(data, (data->mstate < MSTATE_DONE)?
MSTATE_DONE: MSTATE_COMPLETED);
rc = CURLM_CALL_MULTI_PERFORM;
}
}
if(MSTATE_COMPLETED == data->mstate) {
if(data->set.fmultidone) {
/* signal via callback instead */
data->set.fmultidone(data, result);
}
else {
/* now fill in the Curl_message with this info */
msg = &data->msg;
msg->extmsg.msg = CURLMSG_DONE;
msg->extmsg.easy_handle = data;
msg->extmsg.data.result = result;
rc = multi_addmsg(multi, msg);
DEBUGASSERT(!data->conn);
}
multistate(data, MSTATE_MSGSENT);
}
} while((rc == CURLM_CALL_MULTI_PERFORM) || multi_ischanged(multi, FALSE));
data->result = result;
return rc;
}
CURLMcode curl_multi_perform(struct Curl_multi *multi, int *running_handles)
{
struct Curl_easy *data;
CURLMcode returncode = CURLM_OK;
struct Curl_tree *t;
struct curltime now = Curl_now();
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
data = multi->easyp;
while(data) {
CURLMcode result;
SIGPIPE_VARIABLE(pipe_st);
sigpipe_ignore(data, &pipe_st);
result = multi_runsingle(multi, &now, data);
sigpipe_restore(&pipe_st);
if(result)
returncode = result;
data = data->next; /* operate on next handle */
}
/*
* Simply remove all expired timers from the splay since handles are dealt
* with unconditionally by this function and curl_multi_timeout() requires
* that already passed/handled expire times are removed from the splay.
*
* It is important that the 'now' value is set at the entry of this function
* and not for the current time as it may have ticked a little while since
* then and then we risk this loop to remove timers that actually have not
* been handled!
*/
do {
multi->timetree = Curl_splaygetbest(now, multi->timetree, &t);
if(t)
/* the removed may have another timeout in queue */
(void)add_next_timeout(now, multi, t->payload);
} while(t);
*running_handles = multi->num_alive;
if(CURLM_OK >= returncode)
Curl_update_timer(multi);
return returncode;
}
CURLMcode curl_multi_cleanup(struct Curl_multi *multi)
{
struct Curl_easy *data;
struct Curl_easy *nextdata;
if(GOOD_MULTI_HANDLE(multi)) {
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
multi->magic = 0; /* not good anymore */
/* First remove all remaining easy handles */
data = multi->easyp;
while(data) {
nextdata = data->next;
if(!data->state.done && data->conn)
/* if DONE was never called for this handle */
(void)multi_done(data, CURLE_OK, TRUE);
if(data->dns.hostcachetype == HCACHE_MULTI) {
/* clear out the usage of the shared DNS cache */
Curl_hostcache_clean(data, data->dns.hostcache);
data->dns.hostcache = NULL;
data->dns.hostcachetype = HCACHE_NONE;
}
/* Clear the pointer to the connection cache */
data->state.conn_cache = NULL;
data->multi = NULL; /* clear the association */
#ifdef USE_LIBPSL
if(data->psl == &multi->psl)
data->psl = NULL;
#endif
data = nextdata;
}
/* Close all the connections in the connection cache */
Curl_conncache_close_all_connections(&multi->conn_cache);
Curl_hash_destroy(&multi->sockhash);
Curl_conncache_destroy(&multi->conn_cache);
Curl_llist_destroy(&multi->msglist, NULL);
Curl_llist_destroy(&multi->pending, NULL);
Curl_hash_destroy(&multi->hostcache);
Curl_psl_destroy(&multi->psl);
#ifdef USE_WINSOCK
WSACloseEvent(multi->wsa_event);
#else
#ifdef ENABLE_WAKEUP
sclose(multi->wakeup_pair[0]);
sclose(multi->wakeup_pair[1]);
#endif
#endif
free(multi);
return CURLM_OK;
}
return CURLM_BAD_HANDLE;
}
/*
* curl_multi_info_read()
*
* This function is the primary way for a multi/multi_socket application to
* figure out if a transfer has ended. We MUST make this function as fast as
* possible as it will be polled frequently and we MUST NOT scan any lists in
* here to figure out things. We must scale fine to thousands of handles and
* beyond. The current design is fully O(1).
*/
CURLMsg *curl_multi_info_read(struct Curl_multi *multi, int *msgs_in_queue)
{
struct Curl_message *msg;
*msgs_in_queue = 0; /* default to none */
if(GOOD_MULTI_HANDLE(multi) &&
!multi->in_callback &&
Curl_llist_count(&multi->msglist)) {
/* there is one or more messages in the list */
struct Curl_llist_element *e;
/* extract the head of the list to return */
e = multi->msglist.head;
msg = e->ptr;
/* remove the extracted entry */
Curl_llist_remove(&multi->msglist, e, NULL);
*msgs_in_queue = curlx_uztosi(Curl_llist_count(&multi->msglist));
return &msg->extmsg;
}
return NULL;
}
/*
* singlesocket() checks what sockets we deal with and their "action state"
* and if we have a different state in any of those sockets from last time we
* call the callback accordingly.
*/
static CURLMcode singlesocket(struct Curl_multi *multi,
struct Curl_easy *data)
{
curl_socket_t socks[MAX_SOCKSPEREASYHANDLE];
int i;
struct Curl_sh_entry *entry;
curl_socket_t s;
int num;
unsigned int curraction;
unsigned char actions[MAX_SOCKSPEREASYHANDLE];
for(i = 0; i< MAX_SOCKSPEREASYHANDLE; i++)
socks[i] = CURL_SOCKET_BAD;
/* Fill in the 'current' struct with the state as it is now: what sockets to
supervise and for what actions */
curraction = multi_getsock(data, socks);
/* We have 0 .. N sockets already and we get to know about the 0 .. M
sockets we should have from now on. Detect the differences, remove no
longer supervised ones and add new ones */
/* walk over the sockets we got right now */
for(i = 0; (i< MAX_SOCKSPEREASYHANDLE) &&
(curraction & (GETSOCK_READSOCK(i) | GETSOCK_WRITESOCK(i)));
i++) {
unsigned char action = CURL_POLL_NONE;
unsigned char prevaction = 0;
int comboaction;
bool sincebefore = FALSE;
s = socks[i];
/* get it from the hash */
entry = sh_getentry(&multi->sockhash, s);
if(curraction & GETSOCK_READSOCK(i))
action |= CURL_POLL_IN;
if(curraction & GETSOCK_WRITESOCK(i))
action |= CURL_POLL_OUT;
actions[i] = action;
if(entry) {
/* check if new for this transfer */
int j;
for(j = 0; j< data->numsocks; j++) {
if(s == data->sockets[j]) {
prevaction = data->actions[j];
sincebefore = TRUE;
break;
}
}
}
else {
/* this is a socket we didn't have before, add it to the hash! */
entry = sh_addentry(&multi->sockhash, s);
if(!entry)
/* fatal */
return CURLM_OUT_OF_MEMORY;
}
if(sincebefore && (prevaction != action)) {
/* Socket was used already, but different action now */
if(prevaction & CURL_POLL_IN)
entry->readers--;
if(prevaction & CURL_POLL_OUT)
entry->writers--;
if(action & CURL_POLL_IN)
entry->readers++;
if(action & CURL_POLL_OUT)
entry->writers++;
}
else if(!sincebefore) {
/* a new user */
entry->users++;
if(action & CURL_POLL_IN)
entry->readers++;
if(action & CURL_POLL_OUT)
entry->writers++;
/* add 'data' to the transfer hash on this socket! */
if(!Curl_hash_add(&entry->transfers, (char *)&data, /* hash key */
sizeof(struct Curl_easy *), data))
return CURLM_OUT_OF_MEMORY;
}
comboaction = (entry->writers? CURL_POLL_OUT : 0) |
(entry->readers ? CURL_POLL_IN : 0);
/* socket existed before and has the same action set as before */
if(sincebefore && ((int)entry->action == comboaction))
/* same, continue */
continue;
if(multi->socket_cb)
multi->socket_cb(data, s, comboaction, multi->socket_userp,
entry->socketp);
entry->action = comboaction; /* store the current action state */
}
num = i; /* number of sockets */
/* when we've walked over all the sockets we should have right now, we must
make sure to detect sockets that are removed */
for(i = 0; i< data->numsocks; i++) {
int j;
bool stillused = FALSE;
s = data->sockets[i];
for(j = 0; j < num; j++) {
if(s == socks[j]) {
/* this is still supervised */
stillused = TRUE;
break;
}
}
if(stillused)
continue;
entry = sh_getentry(&multi->sockhash, s);
/* if this is NULL here, the socket has been closed and notified so
already by Curl_multi_closed() */
if(entry) {
unsigned char oldactions = data->actions[i];
/* this socket has been removed. Decrease user count */
entry->users--;
if(oldactions & CURL_POLL_OUT)
entry->writers--;
if(oldactions & CURL_POLL_IN)
entry->readers--;
if(!entry->users) {
if(multi->socket_cb)
multi->socket_cb(data, s, CURL_POLL_REMOVE,
multi->socket_userp,
entry->socketp);
sh_delentry(entry, &multi->sockhash, s);
}
else {
/* still users, but remove this handle as a user of this socket */
if(Curl_hash_delete(&entry->transfers, (char *)&data,
sizeof(struct Curl_easy *))) {
DEBUGASSERT(NULL);
}
}
}
} /* for loop over numsocks */
memcpy(data->sockets, socks, num*sizeof(curl_socket_t));
memcpy(data->actions, actions, num*sizeof(char));
data->numsocks = num;
return CURLM_OK;
}
void Curl_updatesocket(struct Curl_easy *data)
{
singlesocket(data->multi, data);
}
/*
* Curl_multi_closed()
*
* Used by the connect code to tell the multi_socket code that one of the
* sockets we were using is about to be closed. This function will then
* remove it from the sockethash for this handle to make the multi_socket API
* behave properly, especially for the case when libcurl will create another
* socket again and it gets the same file descriptor number.
*/
void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s)
{
if(data) {
/* if there's still an easy handle associated with this connection */
struct Curl_multi *multi = data->multi;
if(multi) {
/* this is set if this connection is part of a handle that is added to
a multi handle, and only then this is necessary */
struct Curl_sh_entry *entry = sh_getentry(&multi->sockhash, s);
if(entry) {
if(multi->socket_cb)
multi->socket_cb(data, s, CURL_POLL_REMOVE,
multi->socket_userp,
entry->socketp);
/* now remove it from the socket hash */
sh_delentry(entry, &multi->sockhash, s);
}
}
}
}
/*
* add_next_timeout()
*
* Each Curl_easy has a list of timeouts. The add_next_timeout() is called
* when it has just been removed from the splay tree because the timeout has
* expired. This function is then to advance in the list to pick the next
* timeout to use (skip the already expired ones) and add this node back to
* the splay tree again.
*
* The splay tree only has each sessionhandle as a single node and the nearest
* timeout is used to sort it on.
*/
static CURLMcode add_next_timeout(struct curltime now,
struct Curl_multi *multi,
struct Curl_easy *d)
{
struct curltime *tv = &d->state.expiretime;
struct Curl_llist *list = &d->state.timeoutlist;
struct Curl_llist_element *e;
struct time_node *node = NULL;
/* move over the timeout list for this specific handle and remove all
timeouts that are now passed tense and store the next pending
timeout in *tv */
for(e = list->head; e;) {
struct Curl_llist_element *n = e->next;
timediff_t diff;
node = (struct time_node *)e->ptr;
diff = Curl_timediff(node->time, now);
if(diff <= 0)
/* remove outdated entry */
Curl_llist_remove(list, e, NULL);
else
/* the list is sorted so get out on the first mismatch */
break;
e = n;
}
e = list->head;
if(!e) {
/* clear the expire times within the handles that we remove from the
splay tree */
tv->tv_sec = 0;
tv->tv_usec = 0;
}
else {
/* copy the first entry to 'tv' */
memcpy(tv, &node->time, sizeof(*tv));
/* Insert this node again into the splay. Keep the timer in the list in
case we need to recompute future timers. */
multi->timetree = Curl_splayinsert(*tv, multi->timetree,
&d->state.timenode);
}
return CURLM_OK;
}
static CURLMcode multi_socket(struct Curl_multi *multi,
bool checkall,
curl_socket_t s,
int ev_bitmask,
int *running_handles)
{
CURLMcode result = CURLM_OK;
struct Curl_easy *data = NULL;
struct Curl_tree *t;
struct curltime now = Curl_now();
if(checkall) {
/* *perform() deals with running_handles on its own */
result = curl_multi_perform(multi, running_handles);
/* walk through each easy handle and do the socket state change magic
and callbacks */
if(result != CURLM_BAD_HANDLE) {
data = multi->easyp;
while(data && !result) {
result = singlesocket(multi, data);
data = data->next;
}
}
/* or should we fall-through and do the timer-based stuff? */
return result;
}
if(s != CURL_SOCKET_TIMEOUT) {
struct Curl_sh_entry *entry = sh_getentry(&multi->sockhash, s);
if(!entry)
/* Unmatched socket, we can't act on it but we ignore this fact. In
real-world tests it has been proved that libevent can in fact give
the application actions even though the socket was just previously
asked to get removed, so thus we better survive stray socket actions
and just move on. */
;
else {
struct Curl_hash_iterator iter;
struct Curl_hash_element *he;
/* the socket can be shared by many transfers, iterate */
Curl_hash_start_iterate(&entry->transfers, &iter);
for(he = Curl_hash_next_element(&iter); he;
he = Curl_hash_next_element(&iter)) {
data = (struct Curl_easy *)he->ptr;
DEBUGASSERT(data);
DEBUGASSERT(data->magic == CURLEASY_MAGIC_NUMBER);
if(data->conn && !(data->conn->handler->flags & PROTOPT_DIRLOCK))
/* set socket event bitmask if they're not locked */
data->conn->cselect_bits = ev_bitmask;
Curl_expire(data, 0, EXPIRE_RUN_NOW);
}
/* Now we fall-through and do the timer-based stuff, since we don't want
to force the user to have to deal with timeouts as long as at least
one connection in fact has traffic. */
data = NULL; /* set data to NULL again to avoid calling
multi_runsingle() in case there's no need to */
now = Curl_now(); /* get a newer time since the multi_runsingle() loop
may have taken some time */
}
}
else {
/* Asked to run due to time-out. Clear the 'lastcall' variable to force
Curl_update_timer() to trigger a callback to the app again even if the
same timeout is still the one to run after this call. That handles the
case when the application asks libcurl to run the timeout
prematurely. */
memset(&multi->timer_lastcall, 0, sizeof(multi->timer_lastcall));
}
/*
* The loop following here will go on as long as there are expire-times left
* to process in the splay and 'data' will be re-assigned for every expired
* handle we deal with.
*/
do {
/* the first loop lap 'data' can be NULL */
if(data) {
SIGPIPE_VARIABLE(pipe_st);
sigpipe_ignore(data, &pipe_st);
result = multi_runsingle(multi, &now, data);
sigpipe_restore(&pipe_st);
if(CURLM_OK >= result) {
/* get the socket(s) and check if the state has been changed since
last */
result = singlesocket(multi, data);
if(result)
return result;
}
}
/* Check if there's one (more) expired timer to deal with! This function
extracts a matching node if there is one */
multi->timetree = Curl_splaygetbest(now, multi->timetree, &t);
if(t) {
data = t->payload; /* assign this for next loop */
(void)add_next_timeout(now, multi, t->payload);
}
} while(t);
*running_handles = multi->num_alive;
return result;
}
#undef curl_multi_setopt
CURLMcode curl_multi_setopt(struct Curl_multi *multi,
CURLMoption option, ...)
{
CURLMcode res = CURLM_OK;
va_list param;
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
va_start(param, option);
switch(option) {
case CURLMOPT_SOCKETFUNCTION:
multi->socket_cb = va_arg(param, curl_socket_callback);
break;
case CURLMOPT_SOCKETDATA:
multi->socket_userp = va_arg(param, void *);
break;
case CURLMOPT_PUSHFUNCTION:
multi->push_cb = va_arg(param, curl_push_callback);
break;
case CURLMOPT_PUSHDATA:
multi->push_userp = va_arg(param, void *);
break;
case CURLMOPT_PIPELINING:
multi->multiplexing = va_arg(param, long) & CURLPIPE_MULTIPLEX;
break;
case CURLMOPT_TIMERFUNCTION:
multi->timer_cb = va_arg(param, curl_multi_timer_callback);
break;
case CURLMOPT_TIMERDATA:
multi->timer_userp = va_arg(param, void *);
break;
case CURLMOPT_MAXCONNECTS:
multi->maxconnects = va_arg(param, long);
break;
case CURLMOPT_MAX_HOST_CONNECTIONS:
multi->max_host_connections = va_arg(param, long);
break;
case CURLMOPT_MAX_TOTAL_CONNECTIONS:
multi->max_total_connections = va_arg(param, long);
break;
/* options formerly used for pipelining */
case CURLMOPT_MAX_PIPELINE_LENGTH:
break;
case CURLMOPT_CONTENT_LENGTH_PENALTY_SIZE:
break;
case CURLMOPT_CHUNK_LENGTH_PENALTY_SIZE:
break;
case CURLMOPT_PIPELINING_SITE_BL:
break;
case CURLMOPT_PIPELINING_SERVER_BL:
break;
case CURLMOPT_MAX_CONCURRENT_STREAMS:
{
long streams = va_arg(param, long);
if(streams < 1)
streams = 100;
multi->max_concurrent_streams = curlx_sltoui(streams);
}
break;
default:
res = CURLM_UNKNOWN_OPTION;
break;
}
va_end(param);
return res;
}
/* we define curl_multi_socket() in the public multi.h header */
#undef curl_multi_socket
CURLMcode curl_multi_socket(struct Curl_multi *multi, curl_socket_t s,
int *running_handles)
{
CURLMcode result;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
result = multi_socket(multi, FALSE, s, 0, running_handles);
if(CURLM_OK >= result)
Curl_update_timer(multi);
return result;
}
CURLMcode curl_multi_socket_action(struct Curl_multi *multi, curl_socket_t s,
int ev_bitmask, int *running_handles)
{
CURLMcode result;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
result = multi_socket(multi, FALSE, s, ev_bitmask, running_handles);
if(CURLM_OK >= result)
Curl_update_timer(multi);
return result;
}
CURLMcode curl_multi_socket_all(struct Curl_multi *multi, int *running_handles)
{
CURLMcode result;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
result = multi_socket(multi, TRUE, CURL_SOCKET_BAD, 0, running_handles);
if(CURLM_OK >= result)
Curl_update_timer(multi);
return result;
}
static CURLMcode multi_timeout(struct Curl_multi *multi,
long *timeout_ms)
{
static const struct curltime tv_zero = {0, 0};
if(multi->timetree) {
/* we have a tree of expire times */
struct curltime now = Curl_now();
/* splay the lowest to the bottom */
multi->timetree = Curl_splay(tv_zero, multi->timetree);
if(Curl_splaycomparekeys(multi->timetree->key, now) > 0) {
/* some time left before expiration */
timediff_t diff = Curl_timediff(multi->timetree->key, now);
if(diff <= 0)
/*
* Since we only provide millisecond resolution on the returned value
* and the diff might be less than one millisecond here, we don't
* return zero as that may cause short bursts of busyloops on fast
* processors while the diff is still present but less than one
* millisecond! instead we return 1 until the time is ripe.
*/
*timeout_ms = 1;
else
/* this should be safe even on 64 bit archs, as we don't use that
overly long timeouts */
*timeout_ms = (long)diff;
}
else
/* 0 means immediately */
*timeout_ms = 0;
}
else
*timeout_ms = -1;
return CURLM_OK;
}
CURLMcode curl_multi_timeout(struct Curl_multi *multi,
long *timeout_ms)
{
/* First, make some basic checks that the CURLM handle is a good handle */
if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
return multi_timeout(multi, timeout_ms);
}
/*
* Tell the application it should update its timers, if it subscribes to the
* update timer callback.
*/
void Curl_update_timer(struct Curl_multi *multi)
{
long timeout_ms;
if(!multi->timer_cb)
return;
if(multi_timeout(multi, &timeout_ms)) {
return;
}
if(timeout_ms < 0) {
static const struct curltime none = {0, 0};
if(Curl_splaycomparekeys(none, multi->timer_lastcall)) {
multi->timer_lastcall = none;
/* there's no timeout now but there was one previously, tell the app to
disable it */
multi->timer_cb(multi, -1, multi->timer_userp);
return;
}
return;
}
/* When multi_timeout() is done, multi->timetree points to the node with the
* timeout we got the (relative) time-out time for. We can thus easily check
* if this is the same (fixed) time as we got in a previous call and then
* avoid calling the callback again. */
if(Curl_splaycomparekeys(multi->timetree->key, multi->timer_lastcall) == 0)
return;
multi->timer_lastcall = multi->timetree->key;
multi->timer_cb(multi, timeout_ms, multi->timer_userp);
}
/*
* multi_deltimeout()
*
* Remove a given timestamp from the list of timeouts.
*/
static void
multi_deltimeout(struct Curl_easy *data, expire_id eid)
{
struct Curl_llist_element *e;
struct Curl_llist *timeoutlist = &data->state.timeoutlist;
/* find and remove the specific node from the list */
for(e = timeoutlist->head; e; e = e->next) {
struct time_node *n = (struct time_node *)e->ptr;
if(n->eid == eid) {
Curl_llist_remove(timeoutlist, e, NULL);
return;
}
}
}
/*
* multi_addtimeout()
*
* Add a timestamp to the list of timeouts. Keep the list sorted so that head
* of list is always the timeout nearest in time.
*
*/
static CURLMcode
multi_addtimeout(struct Curl_easy *data,
struct curltime *stamp,
expire_id eid)
{
struct Curl_llist_element *e;
struct time_node *node;
struct Curl_llist_element *prev = NULL;
size_t n;
struct Curl_llist *timeoutlist = &data->state.timeoutlist;
node = &data->state.expires[eid];
/* copy the timestamp and id */
memcpy(&node->time, stamp, sizeof(*stamp));
node->eid = eid; /* also marks it as in use */
n = Curl_llist_count(timeoutlist);
if(n) {
/* find the correct spot in the list */
for(e = timeoutlist->head; e; e = e->next) {
struct time_node *check = (struct time_node *)e->ptr;
timediff_t diff = Curl_timediff(check->time, node->time);
if(diff > 0)
break;
prev = e;
}
}
/* else
this is the first timeout on the list */
Curl_llist_insert_next(timeoutlist, prev, node, &node->list);
return CURLM_OK;
}
/*
* Curl_expire()
*
* given a number of milliseconds from now to use to set the 'act before
* this'-time for the transfer, to be extracted by curl_multi_timeout()
*
* The timeout will be added to a queue of timeouts if it defines a moment in
* time that is later than the current head of queue.
*
* Expire replaces a former timeout using the same id if already set.
*/
void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id id)
{
struct Curl_multi *multi = data->multi;
struct curltime *nowp = &data->state.expiretime;
struct curltime set;
/* this is only interesting while there is still an associated multi struct
remaining! */
if(!multi)
return;
DEBUGASSERT(id < EXPIRE_LAST);
set = Curl_now();
set.tv_sec += (time_t)(milli/1000); /* might be a 64 to 32 bit conversion */
set.tv_usec += (unsigned int)(milli%1000)*1000;
if(set.tv_usec >= 1000000) {
set.tv_sec++;
set.tv_usec -= 1000000;
}
/* Remove any timer with the same id just in case. */
multi_deltimeout(data, id);
/* Add it to the timer list. It must stay in the list until it has expired
in case we need to recompute the minimum timer later. */
multi_addtimeout(data, &set, id);
if(nowp->tv_sec || nowp->tv_usec) {
/* This means that the struct is added as a node in the splay tree.
Compare if the new time is earlier, and only remove-old/add-new if it
is. */
timediff_t diff = Curl_timediff(set, *nowp);
int rc;
if(diff > 0) {
/* The current splay tree entry is sooner than this new expiry time.
We don't need to update our splay tree entry. */
return;
}
/* Since this is an updated time, we must remove the previous entry from
the splay tree first and then re-add the new value */
rc = Curl_splayremove(multi->timetree, &data->state.timenode,
&multi->timetree);
if(rc)
infof(data, "Internal error removing splay node = %d", rc);
}
/* Indicate that we are in the splay tree and insert the new timer expiry
value since it is our local minimum. */
*nowp = set;
data->state.timenode.payload = data;
multi->timetree = Curl_splayinsert(*nowp, multi->timetree,
&data->state.timenode);
}
/*
* Curl_expire_done()
*
* Removes the expire timer. Marks it as done.
*
*/
void Curl_expire_done(struct Curl_easy *data, expire_id id)
{
/* remove the timer, if there */
multi_deltimeout(data, id);
}
/*
* Curl_expire_clear()
*
* Clear ALL timeout values for this handle.
*/
void Curl_expire_clear(struct Curl_easy *data)
{
struct Curl_multi *multi = data->multi;
struct curltime *nowp = &data->state.expiretime;
/* this is only interesting while there is still an associated multi struct
remaining! */
if(!multi)
return;
if(nowp->tv_sec || nowp->tv_usec) {
/* Since this is an cleared time, we must remove the previous entry from
the splay tree */
struct Curl_llist *list = &data->state.timeoutlist;
int rc;
rc = Curl_splayremove(multi->timetree, &data->state.timenode,
&multi->timetree);
if(rc)
infof(data, "Internal error clearing splay node = %d", rc);
/* flush the timeout list too */
while(list->size > 0) {
Curl_llist_remove(list, list->tail, NULL);
}
#ifdef DEBUGBUILD
infof(data, "Expire cleared (transfer %p)", data);
#endif
nowp->tv_sec = 0;
nowp->tv_usec = 0;
}
}
CURLMcode curl_multi_assign(struct Curl_multi *multi, curl_socket_t s,
void *hashp)
{
struct Curl_sh_entry *there = NULL;
if(multi->in_callback)
return CURLM_RECURSIVE_API_CALL;
there = sh_getentry(&multi->sockhash, s);
if(!there)
return CURLM_BAD_SOCKET;
there->socketp = hashp;
return CURLM_OK;
}
size_t Curl_multi_max_host_connections(struct Curl_multi *multi)
{
return multi ? multi->max_host_connections : 0;
}
size_t Curl_multi_max_total_connections(struct Curl_multi *multi)
{
return multi ? multi->max_total_connections : 0;
}
/*
* When information about a connection has appeared, call this!
*/
void Curl_multiuse_state(struct Curl_easy *data,
int bundlestate) /* use BUNDLE_* defines */
{
struct connectdata *conn;
DEBUGASSERT(data);
DEBUGASSERT(data->multi);
conn = data->conn;
DEBUGASSERT(conn);
DEBUGASSERT(conn->bundle);
conn->bundle->multiuse = bundlestate;
process_pending_handles(data->multi);
}
static void process_pending_handles(struct Curl_multi *multi)
{
struct Curl_llist_element *e = multi->pending.head;
if(e) {
struct Curl_easy *data = e->ptr;
DEBUGASSERT(data->mstate == MSTATE_PENDING);
multistate(data, MSTATE_CONNECT);
/* Remove this node from the list */
Curl_llist_remove(&multi->pending, e, NULL);
/* Make sure that the handle will be processed soonish. */
Curl_expire(data, 0, EXPIRE_RUN_NOW);
/* mark this as having been in the pending queue */
data->state.previouslypending = TRUE;
}
}
void Curl_set_in_callback(struct Curl_easy *data, bool value)
{
/* might get called when there is no data pointer! */
if(data) {
if(data->multi_easy)
data->multi_easy->in_callback = value;
else if(data->multi)
data->multi->in_callback = value;
}
}
bool Curl_is_in_callback(struct Curl_easy *easy)
{
return ((easy->multi && easy->multi->in_callback) ||
(easy->multi_easy && easy->multi_easy->in_callback));
}
#ifdef DEBUGBUILD
void Curl_multi_dump(struct Curl_multi *multi)
{
struct Curl_easy *data;
int i;
fprintf(stderr, "* Multi status: %d handles, %d alive\n",
multi->num_easy, multi->num_alive);
for(data = multi->easyp; data; data = data->next) {
if(data->mstate < MSTATE_COMPLETED) {
/* only display handles that are not completed */
fprintf(stderr, "handle %p, state %s, %d sockets\n",
(void *)data,
statename[data->mstate], data->numsocks);
for(i = 0; i < data->numsocks; i++) {
curl_socket_t s = data->sockets[i];
struct Curl_sh_entry *entry = sh_getentry(&multi->sockhash, s);
fprintf(stderr, "%d ", (int)s);
if(!entry) {
fprintf(stderr, "INTERNAL CONFUSION\n");
continue;
}
fprintf(stderr, "[%s %s] ",
(entry->action&CURL_POLL_IN)?"RECVING":"",
(entry->action&CURL_POLL_OUT)?"SENDING":"");
}
if(data->numsocks)
fprintf(stderr, "\n");
}
}
}
#endif
unsigned int Curl_multi_max_concurrent_streams(struct Curl_multi *multi)
{
DEBUGASSERT(multi);
return multi->max_concurrent_streams;
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hsts.h | #ifndef HEADER_CURL_HSTS_H
#define HEADER_CURL_HSTS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2020 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_HSTS)
#include <curl/curl.h>
#include "llist.h"
#ifdef DEBUGBUILD
extern time_t deltatime;
#endif
struct stsentry {
struct Curl_llist_element node;
const char *host;
bool includeSubDomains;
curl_off_t expires; /* the timestamp of this entry's expiry */
};
/* The HSTS cache. Needs to be able to tailmatch host names. */
struct hsts {
struct Curl_llist list;
char *filename;
unsigned int flags;
};
struct hsts *Curl_hsts_init(void);
void Curl_hsts_cleanup(struct hsts **hp);
CURLcode Curl_hsts_parse(struct hsts *h, const char *hostname,
const char *sts);
struct stsentry *Curl_hsts(struct hsts *h, const char *hostname,
bool subdomain);
CURLcode Curl_hsts_save(struct Curl_easy *data, struct hsts *h,
const char *file);
CURLcode Curl_hsts_loadfile(struct Curl_easy *data,
struct hsts *h, const char *file);
CURLcode Curl_hsts_loadcb(struct Curl_easy *data,
struct hsts *h);
#else
#define Curl_hsts_cleanup(x)
#define Curl_hsts_loadcb(x,y) CURLE_OK
#define Curl_hsts_save(x,y,z)
#endif /* CURL_DISABLE_HTTP || CURL_DISABLE_HSTS */
#endif /* HEADER_CURL_HSTS_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_HTTP
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef USE_HYPER
#include <hyper.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "formdata.h"
#include "mime.h"
#include "progress.h"
#include "curl_base64.h"
#include "cookie.h"
#include "vauth/vauth.h"
#include "vtls/vtls.h"
#include "http_digest.h"
#include "http_ntlm.h"
#include "curl_ntlm_wb.h"
#include "http_negotiate.h"
#include "http_aws_sigv4.h"
#include "url.h"
#include "share.h"
#include "hostip.h"
#include "http.h"
#include "select.h"
#include "parsedate.h" /* for the week day and month names */
#include "strtoofft.h"
#include "multiif.h"
#include "strcase.h"
#include "content_encoding.h"
#include "http_proxy.h"
#include "warnless.h"
#include "non-ascii.h"
#include "http2.h"
#include "connect.h"
#include "strdup.h"
#include "altsvc.h"
#include "hsts.h"
#include "c-hyper.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/*
* Forward declarations.
*/
static int http_getsock_do(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks);
static bool http_should_fail(struct Curl_easy *data);
#ifndef CURL_DISABLE_PROXY
static CURLcode add_haproxy_protocol_header(struct Curl_easy *data);
#endif
#ifdef USE_SSL
static CURLcode https_connecting(struct Curl_easy *data, bool *done);
static int https_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks);
#else
#define https_connecting(x,y) CURLE_COULDNT_CONNECT
#endif
static CURLcode http_setup_conn(struct Curl_easy *data,
struct connectdata *conn);
/*
* HTTP handler interface.
*/
const struct Curl_handler Curl_handler_http = {
"HTTP", /* scheme */
http_setup_conn, /* setup_connection */
Curl_http, /* do_it */
Curl_http_done, /* done */
ZERO_NULL, /* do_more */
Curl_http_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
http_getsock_do, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_HTTP, /* defport */
CURLPROTO_HTTP, /* protocol */
CURLPROTO_HTTP, /* family */
PROTOPT_CREDSPERREQUEST | /* flags */
PROTOPT_USERPWDCTRL
};
#ifdef USE_SSL
/*
* HTTPS handler interface.
*/
const struct Curl_handler Curl_handler_https = {
"HTTPS", /* scheme */
http_setup_conn, /* setup_connection */
Curl_http, /* do_it */
Curl_http_done, /* done */
ZERO_NULL, /* do_more */
Curl_http_connect, /* connect_it */
https_connecting, /* connecting */
ZERO_NULL, /* doing */
https_getsock, /* proto_getsock */
http_getsock_do, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_HTTPS, /* defport */
CURLPROTO_HTTPS, /* protocol */
CURLPROTO_HTTP, /* family */
PROTOPT_SSL | PROTOPT_CREDSPERREQUEST | PROTOPT_ALPN_NPN | /* flags */
PROTOPT_USERPWDCTRL
};
#endif
static CURLcode http_setup_conn(struct Curl_easy *data,
struct connectdata *conn)
{
/* allocate the HTTP-specific struct for the Curl_easy, only to survive
during this request */
struct HTTP *http;
DEBUGASSERT(data->req.p.http == NULL);
http = calloc(1, sizeof(struct HTTP));
if(!http)
return CURLE_OUT_OF_MEMORY;
Curl_mime_initpart(&http->form, data);
data->req.p.http = http;
if(data->state.httpwant == CURL_HTTP_VERSION_3) {
if(conn->handler->flags & PROTOPT_SSL)
/* Only go HTTP/3 directly on HTTPS URLs. It needs a UDP socket and does
the QUIC dance. */
conn->transport = TRNSPRT_QUIC;
else {
failf(data, "HTTP/3 requested for non-HTTPS URL");
return CURLE_URL_MALFORMAT;
}
}
else {
if(!CONN_INUSE(conn))
/* if not already multi-using, setup connection details */
Curl_http2_setup_conn(conn);
Curl_http2_setup_req(data);
}
return CURLE_OK;
}
#ifndef CURL_DISABLE_PROXY
/*
* checkProxyHeaders() checks the linked list of custom proxy headers
* if proxy headers are not available, then it will lookup into http header
* link list
*
* It takes a connectdata struct as input to see if this is a proxy request or
* not, as it then might check a different header list. Provide the header
* prefix without colon!
*/
char *Curl_checkProxyheaders(struct Curl_easy *data,
const struct connectdata *conn,
const char *thisheader)
{
struct curl_slist *head;
size_t thislen = strlen(thisheader);
for(head = (conn->bits.proxy && data->set.sep_headers) ?
data->set.proxyheaders : data->set.headers;
head; head = head->next) {
if(strncasecompare(head->data, thisheader, thislen) &&
Curl_headersep(head->data[thislen]))
return head->data;
}
return NULL;
}
#else
/* disabled */
#define Curl_checkProxyheaders(x,y,z) NULL
#endif
/*
* Strip off leading and trailing whitespace from the value in the
* given HTTP header line and return a strdupped copy. Returns NULL in
* case of allocation failure. Returns an empty string if the header value
* consists entirely of whitespace.
*/
char *Curl_copy_header_value(const char *header)
{
const char *start;
const char *end;
char *value;
size_t len;
/* Find the end of the header name */
while(*header && (*header != ':'))
++header;
if(*header)
/* Skip over colon */
++header;
/* Find the first non-space letter */
start = header;
while(*start && ISSPACE(*start))
start++;
/* data is in the host encoding so
use '\r' and '\n' instead of 0x0d and 0x0a */
end = strchr(start, '\r');
if(!end)
end = strchr(start, '\n');
if(!end)
end = strchr(start, '\0');
if(!end)
return NULL;
/* skip all trailing space letters */
while((end > start) && ISSPACE(*end))
end--;
/* get length of the type */
len = end - start + 1;
value = malloc(len + 1);
if(!value)
return NULL;
memcpy(value, start, len);
value[len] = 0; /* null-terminate */
return value;
}
#ifndef CURL_DISABLE_HTTP_AUTH
/*
* http_output_basic() sets up an Authorization: header (or the proxy version)
* for HTTP Basic authentication.
*
* Returns CURLcode.
*/
static CURLcode http_output_basic(struct Curl_easy *data, bool proxy)
{
size_t size = 0;
char *authorization = NULL;
char **userp;
const char *user;
const char *pwd;
CURLcode result;
char *out;
/* credentials are unique per transfer for HTTP, do not use the ones for the
connection */
if(proxy) {
#ifndef CURL_DISABLE_PROXY
userp = &data->state.aptr.proxyuserpwd;
user = data->state.aptr.proxyuser;
pwd = data->state.aptr.proxypasswd;
#else
return CURLE_NOT_BUILT_IN;
#endif
}
else {
userp = &data->state.aptr.userpwd;
user = data->state.aptr.user;
pwd = data->state.aptr.passwd;
}
out = aprintf("%s:%s", user ? user : "", pwd ? pwd : "");
if(!out)
return CURLE_OUT_OF_MEMORY;
result = Curl_base64_encode(data, out, strlen(out), &authorization, &size);
if(result)
goto fail;
if(!authorization) {
result = CURLE_REMOTE_ACCESS_DENIED;
goto fail;
}
free(*userp);
*userp = aprintf("%sAuthorization: Basic %s\r\n",
proxy ? "Proxy-" : "",
authorization);
free(authorization);
if(!*userp) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
fail:
free(out);
return result;
}
/*
* http_output_bearer() sets up an Authorization: header
* for HTTP Bearer authentication.
*
* Returns CURLcode.
*/
static CURLcode http_output_bearer(struct Curl_easy *data)
{
char **userp;
CURLcode result = CURLE_OK;
userp = &data->state.aptr.userpwd;
free(*userp);
*userp = aprintf("Authorization: Bearer %s\r\n",
data->set.str[STRING_BEARER]);
if(!*userp) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
fail:
return result;
}
#endif
/* pickoneauth() selects the most favourable authentication method from the
* ones available and the ones we want.
*
* return TRUE if one was picked
*/
static bool pickoneauth(struct auth *pick, unsigned long mask)
{
bool picked;
/* only deal with authentication we want */
unsigned long avail = pick->avail & pick->want & mask;
picked = TRUE;
/* The order of these checks is highly relevant, as this will be the order
of preference in case of the existence of multiple accepted types. */
if(avail & CURLAUTH_NEGOTIATE)
pick->picked = CURLAUTH_NEGOTIATE;
else if(avail & CURLAUTH_BEARER)
pick->picked = CURLAUTH_BEARER;
else if(avail & CURLAUTH_DIGEST)
pick->picked = CURLAUTH_DIGEST;
else if(avail & CURLAUTH_NTLM)
pick->picked = CURLAUTH_NTLM;
else if(avail & CURLAUTH_NTLM_WB)
pick->picked = CURLAUTH_NTLM_WB;
else if(avail & CURLAUTH_BASIC)
pick->picked = CURLAUTH_BASIC;
else if(avail & CURLAUTH_AWS_SIGV4)
pick->picked = CURLAUTH_AWS_SIGV4;
else {
pick->picked = CURLAUTH_PICKNONE; /* we select to use nothing */
picked = FALSE;
}
pick->avail = CURLAUTH_NONE; /* clear it here */
return picked;
}
/*
* http_perhapsrewind()
*
* If we are doing POST or PUT {
* If we have more data to send {
* If we are doing NTLM {
* Keep sending since we must not disconnect
* }
* else {
* If there is more than just a little data left to send, close
* the current connection by force.
* }
* }
* If we have sent any data {
* If we don't have track of all the data {
* call app to tell it to rewind
* }
* else {
* rewind internally so that the operation can restart fine
* }
* }
* }
*/
static CURLcode http_perhapsrewind(struct Curl_easy *data,
struct connectdata *conn)
{
struct HTTP *http = data->req.p.http;
curl_off_t bytessent;
curl_off_t expectsend = -1; /* default is unknown */
if(!http)
/* If this is still NULL, we have not reach very far and we can safely
skip this rewinding stuff */
return CURLE_OK;
switch(data->state.httpreq) {
case HTTPREQ_GET:
case HTTPREQ_HEAD:
return CURLE_OK;
default:
break;
}
bytessent = data->req.writebytecount;
if(conn->bits.authneg) {
/* This is a state where we are known to be negotiating and we don't send
any data then. */
expectsend = 0;
}
else if(!conn->bits.protoconnstart) {
/* HTTP CONNECT in progress: there is no body */
expectsend = 0;
}
else {
/* figure out how much data we are expected to send */
switch(data->state.httpreq) {
case HTTPREQ_POST:
case HTTPREQ_PUT:
if(data->state.infilesize != -1)
expectsend = data->state.infilesize;
break;
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
expectsend = http->postsize;
break;
default:
break;
}
}
conn->bits.rewindaftersend = FALSE; /* default */
if((expectsend == -1) || (expectsend > bytessent)) {
#if defined(USE_NTLM)
/* There is still data left to send */
if((data->state.authproxy.picked == CURLAUTH_NTLM) ||
(data->state.authhost.picked == CURLAUTH_NTLM) ||
(data->state.authproxy.picked == CURLAUTH_NTLM_WB) ||
(data->state.authhost.picked == CURLAUTH_NTLM_WB)) {
if(((expectsend - bytessent) < 2000) ||
(conn->http_ntlm_state != NTLMSTATE_NONE) ||
(conn->proxy_ntlm_state != NTLMSTATE_NONE)) {
/* The NTLM-negotiation has started *OR* there is just a little (<2K)
data left to send, keep on sending. */
/* rewind data when completely done sending! */
if(!conn->bits.authneg && (conn->writesockfd != CURL_SOCKET_BAD)) {
conn->bits.rewindaftersend = TRUE;
infof(data, "Rewind stream after send");
}
return CURLE_OK;
}
if(conn->bits.close)
/* this is already marked to get closed */
return CURLE_OK;
infof(data, "NTLM send, close instead of sending %"
CURL_FORMAT_CURL_OFF_T " bytes",
(curl_off_t)(expectsend - bytessent));
}
#endif
#if defined(USE_SPNEGO)
/* There is still data left to send */
if((data->state.authproxy.picked == CURLAUTH_NEGOTIATE) ||
(data->state.authhost.picked == CURLAUTH_NEGOTIATE)) {
if(((expectsend - bytessent) < 2000) ||
(conn->http_negotiate_state != GSS_AUTHNONE) ||
(conn->proxy_negotiate_state != GSS_AUTHNONE)) {
/* The NEGOTIATE-negotiation has started *OR*
there is just a little (<2K) data left to send, keep on sending. */
/* rewind data when completely done sending! */
if(!conn->bits.authneg && (conn->writesockfd != CURL_SOCKET_BAD)) {
conn->bits.rewindaftersend = TRUE;
infof(data, "Rewind stream after send");
}
return CURLE_OK;
}
if(conn->bits.close)
/* this is already marked to get closed */
return CURLE_OK;
infof(data, "NEGOTIATE send, close instead of sending %"
CURL_FORMAT_CURL_OFF_T " bytes",
(curl_off_t)(expectsend - bytessent));
}
#endif
/* This is not NEGOTIATE/NTLM or many bytes left to send: close */
streamclose(conn, "Mid-auth HTTP and much data left to send");
data->req.size = 0; /* don't download any more than 0 bytes */
/* There still is data left to send, but this connection is marked for
closure so we can safely do the rewind right now */
}
if(bytessent)
/* we rewind now at once since if we already sent something */
return Curl_readrewind(data);
return CURLE_OK;
}
/*
* Curl_http_auth_act() gets called when all HTTP headers have been received
* and it checks what authentication methods that are available and decides
* which one (if any) to use. It will set 'newurl' if an auth method was
* picked.
*/
CURLcode Curl_http_auth_act(struct Curl_easy *data)
{
struct connectdata *conn = data->conn;
bool pickhost = FALSE;
bool pickproxy = FALSE;
CURLcode result = CURLE_OK;
unsigned long authmask = ~0ul;
if(!data->set.str[STRING_BEARER])
authmask &= (unsigned long)~CURLAUTH_BEARER;
if(100 <= data->req.httpcode && 199 >= data->req.httpcode)
/* this is a transient response code, ignore */
return CURLE_OK;
if(data->state.authproblem)
return data->set.http_fail_on_error?CURLE_HTTP_RETURNED_ERROR:CURLE_OK;
if((conn->bits.user_passwd || data->set.str[STRING_BEARER]) &&
((data->req.httpcode == 401) ||
(conn->bits.authneg && data->req.httpcode < 300))) {
pickhost = pickoneauth(&data->state.authhost, authmask);
if(!pickhost)
data->state.authproblem = TRUE;
if(data->state.authhost.picked == CURLAUTH_NTLM &&
conn->httpversion > 11) {
infof(data, "Forcing HTTP/1.1 for NTLM");
connclose(conn, "Force HTTP/1.1 connection");
data->state.httpwant = CURL_HTTP_VERSION_1_1;
}
}
#ifndef CURL_DISABLE_PROXY
if(conn->bits.proxy_user_passwd &&
((data->req.httpcode == 407) ||
(conn->bits.authneg && data->req.httpcode < 300))) {
pickproxy = pickoneauth(&data->state.authproxy,
authmask & ~CURLAUTH_BEARER);
if(!pickproxy)
data->state.authproblem = TRUE;
}
#endif
if(pickhost || pickproxy) {
if((data->state.httpreq != HTTPREQ_GET) &&
(data->state.httpreq != HTTPREQ_HEAD) &&
!conn->bits.rewindaftersend) {
result = http_perhapsrewind(data, conn);
if(result)
return result;
}
/* In case this is GSS auth, the newurl field is already allocated so
we must make sure to free it before allocating a new one. As figured
out in bug #2284386 */
Curl_safefree(data->req.newurl);
data->req.newurl = strdup(data->state.url); /* clone URL */
if(!data->req.newurl)
return CURLE_OUT_OF_MEMORY;
}
else if((data->req.httpcode < 300) &&
(!data->state.authhost.done) &&
conn->bits.authneg) {
/* no (known) authentication available,
authentication is not "done" yet and
no authentication seems to be required and
we didn't try HEAD or GET */
if((data->state.httpreq != HTTPREQ_GET) &&
(data->state.httpreq != HTTPREQ_HEAD)) {
data->req.newurl = strdup(data->state.url); /* clone URL */
if(!data->req.newurl)
return CURLE_OUT_OF_MEMORY;
data->state.authhost.done = TRUE;
}
}
if(http_should_fail(data)) {
failf(data, "The requested URL returned error: %d",
data->req.httpcode);
result = CURLE_HTTP_RETURNED_ERROR;
}
return result;
}
#ifndef CURL_DISABLE_HTTP_AUTH
/*
* Output the correct authentication header depending on the auth type
* and whether or not it is to a proxy.
*/
static CURLcode
output_auth_headers(struct Curl_easy *data,
struct connectdata *conn,
struct auth *authstatus,
const char *request,
const char *path,
bool proxy)
{
const char *auth = NULL;
CURLcode result = CURLE_OK;
#ifdef CURL_DISABLE_CRYPTO_AUTH
(void)request;
(void)path;
#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(authstatus->picked == CURLAUTH_AWS_SIGV4) {
auth = "AWS_SIGV4";
result = Curl_output_aws_sigv4(data, proxy);
if(result)
return result;
}
else
#endif
#ifdef USE_SPNEGO
if(authstatus->picked == CURLAUTH_NEGOTIATE) {
auth = "Negotiate";
result = Curl_output_negotiate(data, conn, proxy);
if(result)
return result;
}
else
#endif
#ifdef USE_NTLM
if(authstatus->picked == CURLAUTH_NTLM) {
auth = "NTLM";
result = Curl_output_ntlm(data, proxy);
if(result)
return result;
}
else
#endif
#if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
if(authstatus->picked == CURLAUTH_NTLM_WB) {
auth = "NTLM_WB";
result = Curl_output_ntlm_wb(data, conn, proxy);
if(result)
return result;
}
else
#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(authstatus->picked == CURLAUTH_DIGEST) {
auth = "Digest";
result = Curl_output_digest(data,
proxy,
(const unsigned char *)request,
(const unsigned char *)path);
if(result)
return result;
}
else
#endif
if(authstatus->picked == CURLAUTH_BASIC) {
/* Basic */
if(
#ifndef CURL_DISABLE_PROXY
(proxy && conn->bits.proxy_user_passwd &&
!Curl_checkProxyheaders(data, conn, "Proxy-authorization")) ||
#endif
(!proxy && conn->bits.user_passwd &&
!Curl_checkheaders(data, "Authorization"))) {
auth = "Basic";
result = http_output_basic(data, proxy);
if(result)
return result;
}
/* NOTE: this function should set 'done' TRUE, as the other auth
functions work that way */
authstatus->done = TRUE;
}
if(authstatus->picked == CURLAUTH_BEARER) {
/* Bearer */
if((!proxy && data->set.str[STRING_BEARER] &&
!Curl_checkheaders(data, "Authorization"))) {
auth = "Bearer";
result = http_output_bearer(data);
if(result)
return result;
}
/* NOTE: this function should set 'done' TRUE, as the other auth
functions work that way */
authstatus->done = TRUE;
}
if(auth) {
#ifndef CURL_DISABLE_PROXY
infof(data, "%s auth using %s with user '%s'",
proxy ? "Proxy" : "Server", auth,
proxy ? (data->state.aptr.proxyuser ?
data->state.aptr.proxyuser : "") :
(data->state.aptr.user ?
data->state.aptr.user : ""));
#else
infof(data, "Server auth using %s with user '%s'",
auth, data->state.aptr.user ?
data->state.aptr.user : "");
#endif
authstatus->multipass = (!authstatus->done) ? TRUE : FALSE;
}
else
authstatus->multipass = FALSE;
return CURLE_OK;
}
/**
* Curl_http_output_auth() setups the authentication headers for the
* host/proxy and the correct authentication
* method. data->state.authdone is set to TRUE when authentication is
* done.
*
* @param conn all information about the current connection
* @param request pointer to the request keyword
* @param path pointer to the requested path; should include query part
* @param proxytunnel boolean if this is the request setting up a "proxy
* tunnel"
*
* @returns CURLcode
*/
CURLcode
Curl_http_output_auth(struct Curl_easy *data,
struct connectdata *conn,
const char *request,
Curl_HttpReq httpreq,
const char *path,
bool proxytunnel) /* TRUE if this is the request setting
up the proxy tunnel */
{
CURLcode result = CURLE_OK;
struct auth *authhost;
struct auth *authproxy;
DEBUGASSERT(data);
authhost = &data->state.authhost;
authproxy = &data->state.authproxy;
if(
#ifndef CURL_DISABLE_PROXY
(conn->bits.httpproxy && conn->bits.proxy_user_passwd) ||
#endif
conn->bits.user_passwd || data->set.str[STRING_BEARER])
/* continue please */;
else {
authhost->done = TRUE;
authproxy->done = TRUE;
return CURLE_OK; /* no authentication with no user or password */
}
if(authhost->want && !authhost->picked)
/* The app has selected one or more methods, but none has been picked
so far by a server round-trip. Then we set the picked one to the
want one, and if this is one single bit it'll be used instantly. */
authhost->picked = authhost->want;
if(authproxy->want && !authproxy->picked)
/* The app has selected one or more methods, but none has been picked so
far by a proxy round-trip. Then we set the picked one to the want one,
and if this is one single bit it'll be used instantly. */
authproxy->picked = authproxy->want;
#ifndef CURL_DISABLE_PROXY
/* Send proxy authentication header if needed */
if(conn->bits.httpproxy &&
(conn->bits.tunnel_proxy == (bit)proxytunnel)) {
result = output_auth_headers(data, conn, authproxy, request, path, TRUE);
if(result)
return result;
}
else
#else
(void)proxytunnel;
#endif /* CURL_DISABLE_PROXY */
/* we have no proxy so let's pretend we're done authenticating
with it */
authproxy->done = TRUE;
/* To prevent the user+password to get sent to other than the original
host due to a location-follow, we do some weirdo checks here */
if(!data->state.this_is_a_follow ||
#ifndef CURL_DISABLE_NETRC
conn->bits.netrc ||
#endif
!data->state.first_host ||
data->set.allow_auth_to_other_hosts ||
strcasecompare(data->state.first_host, conn->host.name)) {
result = output_auth_headers(data, conn, authhost, request, path, FALSE);
}
else
authhost->done = TRUE;
if(((authhost->multipass && !authhost->done) ||
(authproxy->multipass && !authproxy->done)) &&
(httpreq != HTTPREQ_GET) &&
(httpreq != HTTPREQ_HEAD)) {
/* Auth is required and we are not authenticated yet. Make a PUT or POST
with content-length zero as a "probe". */
conn->bits.authneg = TRUE;
}
else
conn->bits.authneg = FALSE;
return result;
}
#else
/* when disabled */
CURLcode
Curl_http_output_auth(struct Curl_easy *data,
struct connectdata *conn,
const char *request,
Curl_HttpReq httpreq,
const char *path,
bool proxytunnel)
{
(void)data;
(void)conn;
(void)request;
(void)httpreq;
(void)path;
(void)proxytunnel;
return CURLE_OK;
}
#endif
/*
* Curl_http_input_auth() deals with Proxy-Authenticate: and WWW-Authenticate:
* headers. They are dealt with both in the transfer.c main loop and in the
* proxy CONNECT loop.
*/
static int is_valid_auth_separator(char ch)
{
return ch == '\0' || ch == ',' || ISSPACE(ch);
}
CURLcode Curl_http_input_auth(struct Curl_easy *data, bool proxy,
const char *auth) /* the first non-space */
{
/*
* This resource requires authentication
*/
struct connectdata *conn = data->conn;
#ifdef USE_SPNEGO
curlnegotiate *negstate = proxy ? &conn->proxy_negotiate_state :
&conn->http_negotiate_state;
#endif
unsigned long *availp;
struct auth *authp;
(void) conn; /* In case conditionals make it unused. */
if(proxy) {
availp = &data->info.proxyauthavail;
authp = &data->state.authproxy;
}
else {
availp = &data->info.httpauthavail;
authp = &data->state.authhost;
}
/*
* Here we check if we want the specific single authentication (using ==) and
* if we do, we initiate usage of it.
*
* If the provided authentication is wanted as one out of several accepted
* types (using &), we OR this authentication type to the authavail
* variable.
*
* Note:
*
* ->picked is first set to the 'want' value (one or more bits) before the
* request is sent, and then it is again set _after_ all response 401/407
* headers have been received but then only to a single preferred method
* (bit).
*/
while(*auth) {
#ifdef USE_SPNEGO
if(checkprefix("Negotiate", auth) && is_valid_auth_separator(auth[9])) {
if((authp->avail & CURLAUTH_NEGOTIATE) ||
Curl_auth_is_spnego_supported()) {
*availp |= CURLAUTH_NEGOTIATE;
authp->avail |= CURLAUTH_NEGOTIATE;
if(authp->picked == CURLAUTH_NEGOTIATE) {
CURLcode result = Curl_input_negotiate(data, conn, proxy, auth);
if(!result) {
DEBUGASSERT(!data->req.newurl);
data->req.newurl = strdup(data->state.url);
if(!data->req.newurl)
return CURLE_OUT_OF_MEMORY;
data->state.authproblem = FALSE;
/* we received a GSS auth token and we dealt with it fine */
*negstate = GSS_AUTHRECV;
}
else
data->state.authproblem = TRUE;
}
}
}
else
#endif
#ifdef USE_NTLM
/* NTLM support requires the SSL crypto libs */
if(checkprefix("NTLM", auth) && is_valid_auth_separator(auth[4])) {
if((authp->avail & CURLAUTH_NTLM) ||
(authp->avail & CURLAUTH_NTLM_WB) ||
Curl_auth_is_ntlm_supported()) {
*availp |= CURLAUTH_NTLM;
authp->avail |= CURLAUTH_NTLM;
if(authp->picked == CURLAUTH_NTLM ||
authp->picked == CURLAUTH_NTLM_WB) {
/* NTLM authentication is picked and activated */
CURLcode result = Curl_input_ntlm(data, proxy, auth);
if(!result) {
data->state.authproblem = FALSE;
#ifdef NTLM_WB_ENABLED
if(authp->picked == CURLAUTH_NTLM_WB) {
*availp &= ~CURLAUTH_NTLM;
authp->avail &= ~CURLAUTH_NTLM;
*availp |= CURLAUTH_NTLM_WB;
authp->avail |= CURLAUTH_NTLM_WB;
result = Curl_input_ntlm_wb(data, conn, proxy, auth);
if(result) {
infof(data, "Authentication problem. Ignoring this.");
data->state.authproblem = TRUE;
}
}
#endif
}
else {
infof(data, "Authentication problem. Ignoring this.");
data->state.authproblem = TRUE;
}
}
}
}
else
#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(checkprefix("Digest", auth) && is_valid_auth_separator(auth[6])) {
if((authp->avail & CURLAUTH_DIGEST) != 0)
infof(data, "Ignoring duplicate digest auth header.");
else if(Curl_auth_is_digest_supported()) {
CURLcode result;
*availp |= CURLAUTH_DIGEST;
authp->avail |= CURLAUTH_DIGEST;
/* We call this function on input Digest headers even if Digest
* authentication isn't activated yet, as we need to store the
* incoming data from this header in case we are going to use
* Digest */
result = Curl_input_digest(data, proxy, auth);
if(result) {
infof(data, "Authentication problem. Ignoring this.");
data->state.authproblem = TRUE;
}
}
}
else
#endif
if(checkprefix("Basic", auth) &&
is_valid_auth_separator(auth[5])) {
*availp |= CURLAUTH_BASIC;
authp->avail |= CURLAUTH_BASIC;
if(authp->picked == CURLAUTH_BASIC) {
/* We asked for Basic authentication but got a 40X back
anyway, which basically means our name+password isn't
valid. */
authp->avail = CURLAUTH_NONE;
infof(data, "Authentication problem. Ignoring this.");
data->state.authproblem = TRUE;
}
}
else
if(checkprefix("Bearer", auth) &&
is_valid_auth_separator(auth[6])) {
*availp |= CURLAUTH_BEARER;
authp->avail |= CURLAUTH_BEARER;
if(authp->picked == CURLAUTH_BEARER) {
/* We asked for Bearer authentication but got a 40X back
anyway, which basically means our token isn't valid. */
authp->avail = CURLAUTH_NONE;
infof(data, "Authentication problem. Ignoring this.");
data->state.authproblem = TRUE;
}
}
/* there may be multiple methods on one line, so keep reading */
while(*auth && *auth != ',') /* read up to the next comma */
auth++;
if(*auth == ',') /* if we're on a comma, skip it */
auth++;
while(*auth && ISSPACE(*auth))
auth++;
}
return CURLE_OK;
}
/**
* http_should_fail() determines whether an HTTP response has gotten us
* into an error state or not.
*
* @param conn all information about the current connection
*
* @retval FALSE communications should continue
*
* @retval TRUE communications should not continue
*/
static bool http_should_fail(struct Curl_easy *data)
{
int httpcode;
DEBUGASSERT(data);
DEBUGASSERT(data->conn);
httpcode = data->req.httpcode;
/*
** If we haven't been asked to fail on error,
** don't fail.
*/
if(!data->set.http_fail_on_error)
return FALSE;
/*
** Any code < 400 is never terminal.
*/
if(httpcode < 400)
return FALSE;
/*
** A 416 response to a resume request is presumably because the file is
** already completely downloaded and thus not actually a fail.
*/
if(data->state.resume_from && data->state.httpreq == HTTPREQ_GET &&
httpcode == 416)
return FALSE;
/*
** Any code >= 400 that's not 401 or 407 is always
** a terminal error
*/
if((httpcode != 401) && (httpcode != 407))
return TRUE;
/*
** All we have left to deal with is 401 and 407
*/
DEBUGASSERT((httpcode == 401) || (httpcode == 407));
/*
** Examine the current authentication state to see if this
** is an error. The idea is for this function to get
** called after processing all the headers in a response
** message. So, if we've been to asked to authenticate a
** particular stage, and we've done it, we're OK. But, if
** we're already completely authenticated, it's not OK to
** get another 401 or 407.
**
** It is possible for authentication to go stale such that
** the client needs to reauthenticate. Once that info is
** available, use it here.
*/
/*
** Either we're not authenticating, or we're supposed to
** be authenticating something else. This is an error.
*/
if((httpcode == 401) && !data->conn->bits.user_passwd)
return TRUE;
#ifndef CURL_DISABLE_PROXY
if((httpcode == 407) && !data->conn->bits.proxy_user_passwd)
return TRUE;
#endif
return data->state.authproblem;
}
#ifndef USE_HYPER
/*
* readmoredata() is a "fread() emulation" to provide POST and/or request
* data. It is used when a huge POST is to be made and the entire chunk wasn't
* sent in the first send(). This function will then be called from the
* transfer.c loop when more data is to be sent to the peer.
*
* Returns the amount of bytes it filled the buffer with.
*/
static size_t readmoredata(char *buffer,
size_t size,
size_t nitems,
void *userp)
{
struct Curl_easy *data = (struct Curl_easy *)userp;
struct HTTP *http = data->req.p.http;
size_t fullsize = size * nitems;
if(!http->postsize)
/* nothing to return */
return 0;
/* make sure that a HTTP request is never sent away chunked! */
data->req.forbidchunk = (http->sending == HTTPSEND_REQUEST)?TRUE:FALSE;
if(data->set.max_send_speed &&
(data->set.max_send_speed < (curl_off_t)fullsize) &&
(data->set.max_send_speed < http->postsize))
/* speed limit */
fullsize = (size_t)data->set.max_send_speed;
else if(http->postsize <= (curl_off_t)fullsize) {
memcpy(buffer, http->postdata, (size_t)http->postsize);
fullsize = (size_t)http->postsize;
if(http->backup.postsize) {
/* move backup data into focus and continue on that */
http->postdata = http->backup.postdata;
http->postsize = http->backup.postsize;
data->state.fread_func = http->backup.fread_func;
data->state.in = http->backup.fread_in;
http->sending++; /* move one step up */
http->backup.postsize = 0;
}
else
http->postsize = 0;
return fullsize;
}
memcpy(buffer, http->postdata, fullsize);
http->postdata += fullsize;
http->postsize -= fullsize;
return fullsize;
}
/*
* Curl_buffer_send() sends a header buffer and frees all associated
* memory. Body data may be appended to the header data if desired.
*
* Returns CURLcode
*/
CURLcode Curl_buffer_send(struct dynbuf *in,
struct Curl_easy *data,
/* add the number of sent bytes to this
counter */
curl_off_t *bytes_written,
/* how much of the buffer contains body data */
curl_off_t included_body_bytes,
int socketindex)
{
ssize_t amount;
CURLcode result;
char *ptr;
size_t size;
struct connectdata *conn = data->conn;
struct HTTP *http = data->req.p.http;
size_t sendsize;
curl_socket_t sockfd;
size_t headersize;
DEBUGASSERT(socketindex <= SECONDARYSOCKET);
sockfd = conn->sock[socketindex];
/* The looping below is required since we use non-blocking sockets, but due
to the circumstances we will just loop and try again and again etc */
ptr = Curl_dyn_ptr(in);
size = Curl_dyn_len(in);
headersize = size - (size_t)included_body_bytes; /* the initial part that
isn't body is header */
DEBUGASSERT(size > (size_t)included_body_bytes);
result = Curl_convert_to_network(data, ptr, headersize);
/* Curl_convert_to_network calls failf if unsuccessful */
if(result) {
/* conversion failed, free memory and return to the caller */
Curl_dyn_free(in);
return result;
}
if((conn->handler->flags & PROTOPT_SSL
#ifndef CURL_DISABLE_PROXY
|| conn->http_proxy.proxytype == CURLPROXY_HTTPS
#endif
)
&& conn->httpversion != 20) {
/* Make sure this doesn't send more body bytes than what the max send
speed says. The request bytes do not count to the max speed.
*/
if(data->set.max_send_speed &&
(included_body_bytes > data->set.max_send_speed)) {
curl_off_t overflow = included_body_bytes - data->set.max_send_speed;
DEBUGASSERT((size_t)overflow < size);
sendsize = size - (size_t)overflow;
}
else
sendsize = size;
/* OpenSSL is very picky and we must send the SAME buffer pointer to the
library when we attempt to re-send this buffer. Sending the same data
is not enough, we must use the exact same address. For this reason, we
must copy the data to the uploadbuffer first, since that is the buffer
we will be using if this send is retried later.
*/
result = Curl_get_upload_buffer(data);
if(result) {
/* malloc failed, free memory and return to the caller */
Curl_dyn_free(in);
return result;
}
/* We never send more than upload_buffer_size bytes in one single chunk
when we speak HTTPS, as if only a fraction of it is sent now, this data
needs to fit into the normal read-callback buffer later on and that
buffer is using this size.
*/
if(sendsize > (size_t)data->set.upload_buffer_size)
sendsize = (size_t)data->set.upload_buffer_size;
memcpy(data->state.ulbuf, ptr, sendsize);
ptr = data->state.ulbuf;
}
else {
#ifdef CURLDEBUG
/* Allow debug builds to override this logic to force short initial
sends
*/
char *p = getenv("CURL_SMALLREQSEND");
if(p) {
size_t altsize = (size_t)strtoul(p, NULL, 10);
if(altsize)
sendsize = CURLMIN(size, altsize);
else
sendsize = size;
}
else
#endif
{
/* Make sure this doesn't send more body bytes than what the max send
speed says. The request bytes do not count to the max speed.
*/
if(data->set.max_send_speed &&
(included_body_bytes > data->set.max_send_speed)) {
curl_off_t overflow = included_body_bytes - data->set.max_send_speed;
DEBUGASSERT((size_t)overflow < size);
sendsize = size - (size_t)overflow;
}
else
sendsize = size;
}
}
result = Curl_write(data, sockfd, ptr, sendsize, &amount);
if(!result) {
/*
* Note that we may not send the entire chunk at once, and we have a set
* number of data bytes at the end of the big buffer (out of which we may
* only send away a part).
*/
/* how much of the header that was sent */
size_t headlen = (size_t)amount>headersize ? headersize : (size_t)amount;
size_t bodylen = amount - headlen;
/* this data _may_ contain binary stuff */
Curl_debug(data, CURLINFO_HEADER_OUT, ptr, headlen);
if(bodylen)
/* there was body data sent beyond the initial header part, pass that on
to the debug callback too */
Curl_debug(data, CURLINFO_DATA_OUT, ptr + headlen, bodylen);
/* 'amount' can never be a very large value here so typecasting it so a
signed 31 bit value should not cause problems even if ssize_t is
64bit */
*bytes_written += (long)amount;
if(http) {
/* if we sent a piece of the body here, up the byte counter for it
accordingly */
data->req.writebytecount += bodylen;
Curl_pgrsSetUploadCounter(data, data->req.writebytecount);
if((size_t)amount != size) {
/* The whole request could not be sent in one system call. We must
queue it up and send it later when we get the chance. We must not
loop here and wait until it might work again. */
size -= amount;
ptr = Curl_dyn_ptr(in) + amount;
/* backup the currently set pointers */
http->backup.fread_func = data->state.fread_func;
http->backup.fread_in = data->state.in;
http->backup.postdata = http->postdata;
http->backup.postsize = http->postsize;
/* set the new pointers for the request-sending */
data->state.fread_func = (curl_read_callback)readmoredata;
data->state.in = (void *)data;
http->postdata = ptr;
http->postsize = (curl_off_t)size;
/* this much data is remaining header: */
data->req.pendingheader = headersize - headlen;
http->send_buffer = *in; /* copy the whole struct */
http->sending = HTTPSEND_REQUEST;
return CURLE_OK;
}
http->sending = HTTPSEND_BODY;
/* the full buffer was sent, clean up and return */
}
else {
if((size_t)amount != size)
/* We have no continue-send mechanism now, fail. This can only happen
when this function is used from the CONNECT sending function. We
currently (stupidly) assume that the whole request is always sent
away in the first single chunk.
This needs FIXing.
*/
return CURLE_SEND_ERROR;
}
}
Curl_dyn_free(in);
/* no remaining header data */
data->req.pendingheader = 0;
return result;
}
#endif
/* end of the add_buffer functions */
/* ------------------------------------------------------------------------- */
/*
* Curl_compareheader()
*
* Returns TRUE if 'headerline' contains the 'header' with given 'content'.
* Pass headers WITH the colon.
*/
bool
Curl_compareheader(const char *headerline, /* line to check */
const char *header, /* header keyword _with_ colon */
const char *content) /* content string to find */
{
/* RFC2616, section 4.2 says: "Each header field consists of a name followed
* by a colon (":") and the field value. Field names are case-insensitive.
* The field value MAY be preceded by any amount of LWS, though a single SP
* is preferred." */
size_t hlen = strlen(header);
size_t clen;
size_t len;
const char *start;
const char *end;
if(!strncasecompare(headerline, header, hlen))
return FALSE; /* doesn't start with header */
/* pass the header */
start = &headerline[hlen];
/* pass all whitespace */
while(*start && ISSPACE(*start))
start++;
/* find the end of the header line */
end = strchr(start, '\r'); /* lines end with CRLF */
if(!end) {
/* in case there's a non-standard compliant line here */
end = strchr(start, '\n');
if(!end)
/* hm, there's no line ending here, use the zero byte! */
end = strchr(start, '\0');
}
len = end-start; /* length of the content part of the input line */
clen = strlen(content); /* length of the word to find */
/* find the content string in the rest of the line */
for(; len >= clen; len--, start++) {
if(strncasecompare(start, content, clen))
return TRUE; /* match! */
}
return FALSE; /* no match */
}
/*
* Curl_http_connect() performs HTTP stuff to do at connect-time, called from
* the generic Curl_connect().
*/
CURLcode Curl_http_connect(struct Curl_easy *data, bool *done)
{
CURLcode result;
struct connectdata *conn = data->conn;
/* We default to persistent connections. We set this already in this connect
function to make the re-use checks properly be able to check this bit. */
connkeep(conn, "HTTP default");
#ifndef CURL_DISABLE_PROXY
/* the CONNECT procedure might not have been completed */
result = Curl_proxy_connect(data, FIRSTSOCKET);
if(result)
return result;
if(conn->bits.proxy_connect_closed)
/* this is not an error, just part of the connection negotiation */
return CURLE_OK;
if(CONNECT_FIRSTSOCKET_PROXY_SSL())
return CURLE_OK; /* wait for HTTPS proxy SSL initialization to complete */
if(Curl_connect_ongoing(conn))
/* nothing else to do except wait right now - we're not done here. */
return CURLE_OK;
if(data->set.haproxyprotocol) {
/* add HAProxy PROXY protocol header */
result = add_haproxy_protocol_header(data);
if(result)
return result;
}
#endif
if(conn->given->protocol & CURLPROTO_HTTPS) {
/* perform SSL initialization */
result = https_connecting(data, done);
if(result)
return result;
}
else
*done = TRUE;
return CURLE_OK;
}
/* this returns the socket to wait for in the DO and DOING state for the multi
interface and then we're always _sending_ a request and thus we wait for
the single socket to become writable only */
static int http_getsock_do(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
/* write mode */
(void)data;
socks[0] = conn->sock[FIRSTSOCKET];
return GETSOCK_WRITESOCK(0);
}
#ifndef CURL_DISABLE_PROXY
static CURLcode add_haproxy_protocol_header(struct Curl_easy *data)
{
struct dynbuf req;
CURLcode result;
const char *tcp_version;
DEBUGASSERT(data->conn);
Curl_dyn_init(&req, DYN_HAXPROXY);
#ifdef USE_UNIX_SOCKETS
if(data->conn->unix_domain_socket)
/* the buffer is large enough to hold this! */
result = Curl_dyn_add(&req, "PROXY UNKNOWN\r\n");
else {
#endif
/* Emit the correct prefix for IPv6 */
tcp_version = data->conn->bits.ipv6 ? "TCP6" : "TCP4";
result = Curl_dyn_addf(&req, "PROXY %s %s %s %i %i\r\n",
tcp_version,
data->info.conn_local_ip,
data->info.conn_primary_ip,
data->info.conn_local_port,
data->info.conn_primary_port);
#ifdef USE_UNIX_SOCKETS
}
#endif
if(!result)
result = Curl_buffer_send(&req, data, &data->info.request_size,
0, FIRSTSOCKET);
return result;
}
#endif
#ifdef USE_SSL
static CURLcode https_connecting(struct Curl_easy *data, bool *done)
{
CURLcode result;
struct connectdata *conn = data->conn;
DEBUGASSERT((data) && (data->conn->handler->flags & PROTOPT_SSL));
#ifdef ENABLE_QUIC
if(conn->transport == TRNSPRT_QUIC) {
*done = TRUE;
return CURLE_OK;
}
#endif
/* perform SSL initialization for this socket */
result = Curl_ssl_connect_nonblocking(data, conn, FALSE, FIRSTSOCKET, done);
if(result)
connclose(conn, "Failed HTTPS connection");
return result;
}
static int https_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
(void)data;
if(conn->handler->flags & PROTOPT_SSL)
return Curl_ssl->getsock(conn, socks);
return GETSOCK_BLANK;
}
#endif /* USE_SSL */
/*
* Curl_http_done() gets called after a single HTTP request has been
* performed.
*/
CURLcode Curl_http_done(struct Curl_easy *data,
CURLcode status, bool premature)
{
struct connectdata *conn = data->conn;
struct HTTP *http = data->req.p.http;
/* Clear multipass flag. If authentication isn't done yet, then it will get
* a chance to be set back to true when we output the next auth header */
data->state.authhost.multipass = FALSE;
data->state.authproxy.multipass = FALSE;
Curl_unencode_cleanup(data);
/* set the proper values (possibly modified on POST) */
conn->seek_func = data->set.seek_func; /* restore */
conn->seek_client = data->set.seek_client; /* restore */
if(!http)
return CURLE_OK;
Curl_dyn_free(&http->send_buffer);
Curl_http2_done(data, premature);
Curl_quic_done(data, premature);
Curl_mime_cleanpart(&http->form);
Curl_dyn_reset(&data->state.headerb);
Curl_hyper_done(data);
if(status)
return status;
if(!premature && /* this check is pointless when DONE is called before the
entire operation is complete */
!conn->bits.retry &&
!data->set.connect_only &&
(data->req.bytecount +
data->req.headerbytecount -
data->req.deductheadercount) <= 0) {
/* If this connection isn't simply closed to be retried, AND nothing was
read from the HTTP server (that counts), this can't be right so we
return an error here */
failf(data, "Empty reply from server");
/* Mark it as closed to avoid the "left intact" message */
streamclose(conn, "Empty reply from server");
return CURLE_GOT_NOTHING;
}
return CURLE_OK;
}
/*
* Determine if we should use HTTP 1.1 (OR BETTER) for this request. Reasons
* to avoid it include:
*
* - if the user specifically requested HTTP 1.0
* - if the server we are connected to only supports 1.0
* - if any server previously contacted to handle this request only supports
* 1.0.
*/
bool Curl_use_http_1_1plus(const struct Curl_easy *data,
const struct connectdata *conn)
{
if((data->state.httpversion == 10) || (conn->httpversion == 10))
return FALSE;
if((data->state.httpwant == CURL_HTTP_VERSION_1_0) &&
(conn->httpversion <= 10))
return FALSE;
return ((data->state.httpwant == CURL_HTTP_VERSION_NONE) ||
(data->state.httpwant >= CURL_HTTP_VERSION_1_1));
}
#ifndef USE_HYPER
static const char *get_http_string(const struct Curl_easy *data,
const struct connectdata *conn)
{
#ifdef ENABLE_QUIC
if((data->state.httpwant == CURL_HTTP_VERSION_3) ||
(conn->httpversion == 30))
return "3";
#endif
#ifdef USE_NGHTTP2
if(conn->proto.httpc.h2)
return "2";
#endif
if(Curl_use_http_1_1plus(data, conn))
return "1.1";
return "1.0";
}
#endif
/* check and possibly add an Expect: header */
static CURLcode expect100(struct Curl_easy *data,
struct connectdata *conn,
struct dynbuf *req)
{
CURLcode result = CURLE_OK;
data->state.expect100header = FALSE; /* default to false unless it is set
to TRUE below */
if(!data->state.disableexpect && Curl_use_http_1_1plus(data, conn) &&
(conn->httpversion < 20)) {
/* if not doing HTTP 1.0 or version 2, or disabled explicitly, we add an
Expect: 100-continue to the headers which actually speeds up post
operations (as there is one packet coming back from the web server) */
const char *ptr = Curl_checkheaders(data, "Expect");
if(ptr) {
data->state.expect100header =
Curl_compareheader(ptr, "Expect:", "100-continue");
}
else {
result = Curl_dyn_add(req, "Expect: 100-continue\r\n");
if(!result)
data->state.expect100header = TRUE;
}
}
return result;
}
enum proxy_use {
HEADER_SERVER, /* direct to server */
HEADER_PROXY, /* regular request to proxy */
HEADER_CONNECT /* sending CONNECT to a proxy */
};
/* used to compile the provided trailers into one buffer
will return an error code if one of the headers is
not formatted correctly */
CURLcode Curl_http_compile_trailers(struct curl_slist *trailers,
struct dynbuf *b,
struct Curl_easy *handle)
{
char *ptr = NULL;
CURLcode result = CURLE_OK;
const char *endofline_native = NULL;
const char *endofline_network = NULL;
if(
#ifdef CURL_DO_LINEEND_CONV
(handle->state.prefer_ascii) ||
#endif
(handle->set.crlf)) {
/* \n will become \r\n later on */
endofline_native = "\n";
endofline_network = "\x0a";
}
else {
endofline_native = "\r\n";
endofline_network = "\x0d\x0a";
}
while(trailers) {
/* only add correctly formatted trailers */
ptr = strchr(trailers->data, ':');
if(ptr && *(ptr + 1) == ' ') {
result = Curl_dyn_add(b, trailers->data);
if(result)
return result;
result = Curl_dyn_add(b, endofline_native);
if(result)
return result;
}
else
infof(handle, "Malformatted trailing header ! Skipping trailer.");
trailers = trailers->next;
}
result = Curl_dyn_add(b, endofline_network);
return result;
}
CURLcode Curl_add_custom_headers(struct Curl_easy *data,
bool is_connect,
#ifndef USE_HYPER
struct dynbuf *req
#else
void *req
#endif
)
{
struct connectdata *conn = data->conn;
char *ptr;
struct curl_slist *h[2];
struct curl_slist *headers;
int numlists = 1; /* by default */
int i;
#ifndef CURL_DISABLE_PROXY
enum proxy_use proxy;
if(is_connect)
proxy = HEADER_CONNECT;
else
proxy = conn->bits.httpproxy && !conn->bits.tunnel_proxy?
HEADER_PROXY:HEADER_SERVER;
switch(proxy) {
case HEADER_SERVER:
h[0] = data->set.headers;
break;
case HEADER_PROXY:
h[0] = data->set.headers;
if(data->set.sep_headers) {
h[1] = data->set.proxyheaders;
numlists++;
}
break;
case HEADER_CONNECT:
if(data->set.sep_headers)
h[0] = data->set.proxyheaders;
else
h[0] = data->set.headers;
break;
}
#else
(void)is_connect;
h[0] = data->set.headers;
#endif
/* loop through one or two lists */
for(i = 0; i < numlists; i++) {
headers = h[i];
while(headers) {
char *semicolonp = NULL;
ptr = strchr(headers->data, ':');
if(!ptr) {
char *optr;
/* no colon, semicolon? */
ptr = strchr(headers->data, ';');
if(ptr) {
optr = ptr;
ptr++; /* pass the semicolon */
while(*ptr && ISSPACE(*ptr))
ptr++;
if(*ptr) {
/* this may be used for something else in the future */
optr = NULL;
}
else {
if(*(--ptr) == ';') {
/* copy the source */
semicolonp = strdup(headers->data);
if(!semicolonp) {
#ifndef USE_HYPER
Curl_dyn_free(req);
#endif
return CURLE_OUT_OF_MEMORY;
}
/* put a colon where the semicolon is */
semicolonp[ptr - headers->data] = ':';
/* point at the colon */
optr = &semicolonp [ptr - headers->data];
}
}
ptr = optr;
}
}
if(ptr) {
/* we require a colon for this to be a true header */
ptr++; /* pass the colon */
while(*ptr && ISSPACE(*ptr))
ptr++;
if(*ptr || semicolonp) {
/* only send this if the contents was non-blank or done special */
CURLcode result = CURLE_OK;
char *compare = semicolonp ? semicolonp : headers->data;
if(data->state.aptr.host &&
/* a Host: header was sent already, don't pass on any custom Host:
header as that will produce *two* in the same request! */
checkprefix("Host:", compare))
;
else if(data->state.httpreq == HTTPREQ_POST_FORM &&
/* this header (extended by formdata.c) is sent later */
checkprefix("Content-Type:", compare))
;
else if(data->state.httpreq == HTTPREQ_POST_MIME &&
/* this header is sent later */
checkprefix("Content-Type:", compare))
;
else if(conn->bits.authneg &&
/* while doing auth neg, don't allow the custom length since
we will force length zero then */
checkprefix("Content-Length:", compare))
;
else if(data->state.aptr.te &&
/* when asking for Transfer-Encoding, don't pass on a custom
Connection: */
checkprefix("Connection:", compare))
;
else if((conn->httpversion >= 20) &&
checkprefix("Transfer-Encoding:", compare))
/* HTTP/2 doesn't support chunked requests */
;
else if((checkprefix("Authorization:", compare) ||
checkprefix("Cookie:", compare)) &&
/* be careful of sending this potentially sensitive header to
other hosts */
(data->state.this_is_a_follow &&
data->state.first_host &&
!data->set.allow_auth_to_other_hosts &&
!strcasecompare(data->state.first_host, conn->host.name)))
;
else {
#ifdef USE_HYPER
result = Curl_hyper_header(data, req, compare);
#else
result = Curl_dyn_addf(req, "%s\r\n", compare);
#endif
}
if(semicolonp)
free(semicolonp);
if(result)
return result;
}
}
headers = headers->next;
}
}
return CURLE_OK;
}
#ifndef CURL_DISABLE_PARSEDATE
CURLcode Curl_add_timecondition(struct Curl_easy *data,
#ifndef USE_HYPER
struct dynbuf *req
#else
void *req
#endif
)
{
const struct tm *tm;
struct tm keeptime;
CURLcode result;
char datestr[80];
const char *condp;
if(data->set.timecondition == CURL_TIMECOND_NONE)
/* no condition was asked for */
return CURLE_OK;
result = Curl_gmtime(data->set.timevalue, &keeptime);
if(result) {
failf(data, "Invalid TIMEVALUE");
return result;
}
tm = &keeptime;
switch(data->set.timecondition) {
default:
return CURLE_BAD_FUNCTION_ARGUMENT;
case CURL_TIMECOND_IFMODSINCE:
condp = "If-Modified-Since";
break;
case CURL_TIMECOND_IFUNMODSINCE:
condp = "If-Unmodified-Since";
break;
case CURL_TIMECOND_LASTMOD:
condp = "Last-Modified";
break;
}
if(Curl_checkheaders(data, condp)) {
/* A custom header was specified; it will be sent instead. */
return CURLE_OK;
}
/* The If-Modified-Since header family should have their times set in
* GMT as RFC2616 defines: "All HTTP date/time stamps MUST be
* represented in Greenwich Mean Time (GMT), without exception. For the
* purposes of HTTP, GMT is exactly equal to UTC (Coordinated Universal
* Time)." (see page 20 of RFC2616).
*/
/* format: "Tue, 15 Nov 1994 12:45:26 GMT" */
msnprintf(datestr, sizeof(datestr),
"%s: %s, %02d %s %4d %02d:%02d:%02d GMT\r\n",
condp,
Curl_wkday[tm->tm_wday?tm->tm_wday-1:6],
tm->tm_mday,
Curl_month[tm->tm_mon],
tm->tm_year + 1900,
tm->tm_hour,
tm->tm_min,
tm->tm_sec);
#ifndef USE_HYPER
result = Curl_dyn_add(req, datestr);
#else
result = Curl_hyper_header(data, req, datestr);
#endif
return result;
}
#else
/* disabled */
CURLcode Curl_add_timecondition(struct Curl_easy *data,
struct dynbuf *req)
{
(void)data;
(void)req;
return CURLE_OK;
}
#endif
void Curl_http_method(struct Curl_easy *data, struct connectdata *conn,
const char **method, Curl_HttpReq *reqp)
{
Curl_HttpReq httpreq = data->state.httpreq;
const char *request;
if((conn->handler->protocol&(PROTO_FAMILY_HTTP|CURLPROTO_FTP)) &&
data->set.upload)
httpreq = HTTPREQ_PUT;
/* Now set the 'request' pointer to the proper request string */
if(data->set.str[STRING_CUSTOMREQUEST])
request = data->set.str[STRING_CUSTOMREQUEST];
else {
if(data->set.opt_no_body)
request = "HEAD";
else {
DEBUGASSERT((httpreq >= HTTPREQ_GET) && (httpreq <= HTTPREQ_HEAD));
switch(httpreq) {
case HTTPREQ_POST:
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
request = "POST";
break;
case HTTPREQ_PUT:
request = "PUT";
break;
default: /* this should never happen */
case HTTPREQ_GET:
request = "GET";
break;
case HTTPREQ_HEAD:
request = "HEAD";
break;
}
}
}
*method = request;
*reqp = httpreq;
}
CURLcode Curl_http_useragent(struct Curl_easy *data)
{
/* The User-Agent string might have been allocated in url.c already, because
it might have been used in the proxy connect, but if we have got a header
with the user-agent string specified, we erase the previously made string
here. */
if(Curl_checkheaders(data, "User-Agent")) {
free(data->state.aptr.uagent);
data->state.aptr.uagent = NULL;
}
return CURLE_OK;
}
CURLcode Curl_http_host(struct Curl_easy *data, struct connectdata *conn)
{
const char *ptr;
if(!data->state.this_is_a_follow) {
/* Free to avoid leaking memory on multiple requests*/
free(data->state.first_host);
data->state.first_host = strdup(conn->host.name);
if(!data->state.first_host)
return CURLE_OUT_OF_MEMORY;
data->state.first_remote_port = conn->remote_port;
}
Curl_safefree(data->state.aptr.host);
ptr = Curl_checkheaders(data, "Host");
if(ptr && (!data->state.this_is_a_follow ||
strcasecompare(data->state.first_host, conn->host.name))) {
#if !defined(CURL_DISABLE_COOKIES)
/* If we have a given custom Host: header, we extract the host name in
order to possibly use it for cookie reasons later on. We only allow the
custom Host: header if this is NOT a redirect, as setting Host: in the
redirected request is being out on thin ice. Except if the host name
is the same as the first one! */
char *cookiehost = Curl_copy_header_value(ptr);
if(!cookiehost)
return CURLE_OUT_OF_MEMORY;
if(!*cookiehost)
/* ignore empty data */
free(cookiehost);
else {
/* If the host begins with '[', we start searching for the port after
the bracket has been closed */
if(*cookiehost == '[') {
char *closingbracket;
/* since the 'cookiehost' is an allocated memory area that will be
freed later we cannot simply increment the pointer */
memmove(cookiehost, cookiehost + 1, strlen(cookiehost) - 1);
closingbracket = strchr(cookiehost, ']');
if(closingbracket)
*closingbracket = 0;
}
else {
int startsearch = 0;
char *colon = strchr(cookiehost + startsearch, ':');
if(colon)
*colon = 0; /* The host must not include an embedded port number */
}
Curl_safefree(data->state.aptr.cookiehost);
data->state.aptr.cookiehost = cookiehost;
}
#endif
if(strcmp("Host:", ptr)) {
data->state.aptr.host = aprintf("Host:%s\r\n", &ptr[5]);
if(!data->state.aptr.host)
return CURLE_OUT_OF_MEMORY;
}
else
/* when clearing the header */
data->state.aptr.host = NULL;
}
else {
/* When building Host: headers, we must put the host name within
[brackets] if the host name is a plain IPv6-address. RFC2732-style. */
const char *host = conn->host.name;
if(((conn->given->protocol&CURLPROTO_HTTPS) &&
(conn->remote_port == PORT_HTTPS)) ||
((conn->given->protocol&CURLPROTO_HTTP) &&
(conn->remote_port == PORT_HTTP)) )
/* if(HTTPS on port 443) OR (HTTP on port 80) then don't include
the port number in the host string */
data->state.aptr.host = aprintf("Host: %s%s%s\r\n",
conn->bits.ipv6_ip?"[":"",
host,
conn->bits.ipv6_ip?"]":"");
else
data->state.aptr.host = aprintf("Host: %s%s%s:%d\r\n",
conn->bits.ipv6_ip?"[":"",
host,
conn->bits.ipv6_ip?"]":"",
conn->remote_port);
if(!data->state.aptr.host)
/* without Host: we can't make a nice request */
return CURLE_OUT_OF_MEMORY;
}
return CURLE_OK;
}
/*
* Append the request-target to the HTTP request
*/
CURLcode Curl_http_target(struct Curl_easy *data,
struct connectdata *conn,
struct dynbuf *r)
{
CURLcode result = CURLE_OK;
const char *path = data->state.up.path;
const char *query = data->state.up.query;
if(data->set.str[STRING_TARGET]) {
path = data->set.str[STRING_TARGET];
query = NULL;
}
#ifndef CURL_DISABLE_PROXY
if(conn->bits.httpproxy && !conn->bits.tunnel_proxy) {
/* Using a proxy but does not tunnel through it */
/* The path sent to the proxy is in fact the entire URL. But if the remote
host is a IDN-name, we must make sure that the request we produce only
uses the encoded host name! */
/* and no fragment part */
CURLUcode uc;
char *url;
CURLU *h = curl_url_dup(data->state.uh);
if(!h)
return CURLE_OUT_OF_MEMORY;
if(conn->host.dispname != conn->host.name) {
uc = curl_url_set(h, CURLUPART_HOST, conn->host.name, 0);
if(uc) {
curl_url_cleanup(h);
return CURLE_OUT_OF_MEMORY;
}
}
uc = curl_url_set(h, CURLUPART_FRAGMENT, NULL, 0);
if(uc) {
curl_url_cleanup(h);
return CURLE_OUT_OF_MEMORY;
}
if(strcasecompare("http", data->state.up.scheme)) {
/* when getting HTTP, we don't want the userinfo the URL */
uc = curl_url_set(h, CURLUPART_USER, NULL, 0);
if(uc) {
curl_url_cleanup(h);
return CURLE_OUT_OF_MEMORY;
}
uc = curl_url_set(h, CURLUPART_PASSWORD, NULL, 0);
if(uc) {
curl_url_cleanup(h);
return CURLE_OUT_OF_MEMORY;
}
}
/* Extract the URL to use in the request. Store in STRING_TEMP_URL for
clean-up reasons if the function returns before the free() further
down. */
uc = curl_url_get(h, CURLUPART_URL, &url, CURLU_NO_DEFAULT_PORT);
if(uc) {
curl_url_cleanup(h);
return CURLE_OUT_OF_MEMORY;
}
curl_url_cleanup(h);
/* target or url */
result = Curl_dyn_add(r, data->set.str[STRING_TARGET]?
data->set.str[STRING_TARGET]:url);
free(url);
if(result)
return (result);
if(strcasecompare("ftp", data->state.up.scheme)) {
if(data->set.proxy_transfer_mode) {
/* when doing ftp, append ;type=<a|i> if not present */
char *type = strstr(path, ";type=");
if(type && type[6] && type[7] == 0) {
switch(Curl_raw_toupper(type[6])) {
case 'A':
case 'D':
case 'I':
break;
default:
type = NULL;
}
}
if(!type) {
result = Curl_dyn_addf(r, ";type=%c",
data->state.prefer_ascii ? 'a' : 'i');
if(result)
return result;
}
}
}
}
else
#else
(void)conn; /* not used in disabled-proxy builds */
#endif
{
result = Curl_dyn_add(r, path);
if(result)
return result;
if(query)
result = Curl_dyn_addf(r, "?%s", query);
}
return result;
}
CURLcode Curl_http_body(struct Curl_easy *data, struct connectdata *conn,
Curl_HttpReq httpreq, const char **tep)
{
CURLcode result = CURLE_OK;
const char *ptr;
struct HTTP *http = data->req.p.http;
http->postsize = 0;
switch(httpreq) {
case HTTPREQ_POST_MIME:
http->sendit = &data->set.mimepost;
break;
case HTTPREQ_POST_FORM:
/* Convert the form structure into a mime structure. */
Curl_mime_cleanpart(&http->form);
result = Curl_getformdata(data, &http->form, data->set.httppost,
data->state.fread_func);
if(result)
return result;
http->sendit = &http->form;
break;
default:
http->sendit = NULL;
}
#ifndef CURL_DISABLE_MIME
if(http->sendit) {
const char *cthdr = Curl_checkheaders(data, "Content-Type");
/* Read and seek body only. */
http->sendit->flags |= MIME_BODY_ONLY;
/* Prepare the mime structure headers & set content type. */
if(cthdr)
for(cthdr += 13; *cthdr == ' '; cthdr++)
;
else if(http->sendit->kind == MIMEKIND_MULTIPART)
cthdr = "multipart/form-data";
curl_mime_headers(http->sendit, data->set.headers, 0);
result = Curl_mime_prepare_headers(http->sendit, cthdr,
NULL, MIMESTRATEGY_FORM);
curl_mime_headers(http->sendit, NULL, 0);
if(!result)
result = Curl_mime_rewind(http->sendit);
if(result)
return result;
http->postsize = Curl_mime_size(http->sendit);
}
#endif
ptr = Curl_checkheaders(data, "Transfer-Encoding");
if(ptr) {
/* Some kind of TE is requested, check if 'chunked' is chosen */
data->req.upload_chunky =
Curl_compareheader(ptr, "Transfer-Encoding:", "chunked");
}
else {
if((conn->handler->protocol & PROTO_FAMILY_HTTP) &&
(((httpreq == HTTPREQ_POST_MIME || httpreq == HTTPREQ_POST_FORM) &&
http->postsize < 0) ||
((data->set.upload || httpreq == HTTPREQ_POST) &&
data->state.infilesize == -1))) {
if(conn->bits.authneg)
/* don't enable chunked during auth neg */
;
else if(Curl_use_http_1_1plus(data, conn)) {
if(conn->httpversion < 20)
/* HTTP, upload, unknown file size and not HTTP 1.0 */
data->req.upload_chunky = TRUE;
}
else {
failf(data, "Chunky upload is not supported by HTTP 1.0");
return CURLE_UPLOAD_FAILED;
}
}
else {
/* else, no chunky upload */
data->req.upload_chunky = FALSE;
}
if(data->req.upload_chunky)
*tep = "Transfer-Encoding: chunked\r\n";
}
return result;
}
CURLcode Curl_http_bodysend(struct Curl_easy *data, struct connectdata *conn,
struct dynbuf *r, Curl_HttpReq httpreq)
{
#ifndef USE_HYPER
/* Hyper always handles the body separately */
curl_off_t included_body = 0;
#endif
CURLcode result = CURLE_OK;
struct HTTP *http = data->req.p.http;
const char *ptr;
/* If 'authdone' is FALSE, we must not set the write socket index to the
Curl_transfer() call below, as we're not ready to actually upload any
data yet. */
switch(httpreq) {
case HTTPREQ_PUT: /* Let's PUT the data to the server! */
if(conn->bits.authneg)
http->postsize = 0;
else
http->postsize = data->state.infilesize;
if((http->postsize != -1) && !data->req.upload_chunky &&
(conn->bits.authneg || !Curl_checkheaders(data, "Content-Length"))) {
/* only add Content-Length if not uploading chunked */
result = Curl_dyn_addf(r, "Content-Length: %" CURL_FORMAT_CURL_OFF_T
"\r\n", http->postsize);
if(result)
return result;
}
if(http->postsize) {
result = expect100(data, conn, r);
if(result)
return result;
}
/* end of headers */
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
/* set the upload size to the progress meter */
Curl_pgrsSetUploadSize(data, http->postsize);
/* this sends the buffer and frees all the buffer resources */
result = Curl_buffer_send(r, data, &data->info.request_size, 0,
FIRSTSOCKET);
if(result)
failf(data, "Failed sending PUT request");
else
/* prepare for transfer */
Curl_setup_transfer(data, FIRSTSOCKET, -1, TRUE,
http->postsize?FIRSTSOCKET:-1);
if(result)
return result;
break;
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
/* This is form posting using mime data. */
if(conn->bits.authneg) {
/* nothing to post! */
result = Curl_dyn_add(r, "Content-Length: 0\r\n\r\n");
if(result)
return result;
result = Curl_buffer_send(r, data, &data->info.request_size, 0,
FIRSTSOCKET);
if(result)
failf(data, "Failed sending POST request");
else
/* setup variables for the upcoming transfer */
Curl_setup_transfer(data, FIRSTSOCKET, -1, TRUE, -1);
break;
}
data->state.infilesize = http->postsize;
/* We only set Content-Length and allow a custom Content-Length if
we don't upload data chunked, as RFC2616 forbids us to set both
kinds of headers (Transfer-Encoding: chunked and Content-Length) */
if(http->postsize != -1 && !data->req.upload_chunky &&
(conn->bits.authneg || !Curl_checkheaders(data, "Content-Length"))) {
/* we allow replacing this header if not during auth negotiation,
although it isn't very wise to actually set your own */
result = Curl_dyn_addf(r,
"Content-Length: %" CURL_FORMAT_CURL_OFF_T
"\r\n", http->postsize);
if(result)
return result;
}
#ifndef CURL_DISABLE_MIME
/* Output mime-generated headers. */
{
struct curl_slist *hdr;
for(hdr = http->sendit->curlheaders; hdr; hdr = hdr->next) {
result = Curl_dyn_addf(r, "%s\r\n", hdr->data);
if(result)
return result;
}
}
#endif
/* For really small posts we don't use Expect: headers at all, and for
the somewhat bigger ones we allow the app to disable it. Just make
sure that the expect100header is always set to the preferred value
here. */
ptr = Curl_checkheaders(data, "Expect");
if(ptr) {
data->state.expect100header =
Curl_compareheader(ptr, "Expect:", "100-continue");
}
else if(http->postsize > EXPECT_100_THRESHOLD || http->postsize < 0) {
result = expect100(data, conn, r);
if(result)
return result;
}
else
data->state.expect100header = FALSE;
/* make the request end in a true CRLF */
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
/* set the upload size to the progress meter */
Curl_pgrsSetUploadSize(data, http->postsize);
/* Read from mime structure. */
data->state.fread_func = (curl_read_callback) Curl_mime_read;
data->state.in = (void *) http->sendit;
http->sending = HTTPSEND_BODY;
/* this sends the buffer and frees all the buffer resources */
result = Curl_buffer_send(r, data, &data->info.request_size, 0,
FIRSTSOCKET);
if(result)
failf(data, "Failed sending POST request");
else
/* prepare for transfer */
Curl_setup_transfer(data, FIRSTSOCKET, -1, TRUE,
http->postsize?FIRSTSOCKET:-1);
if(result)
return result;
break;
case HTTPREQ_POST:
/* this is the simple POST, using x-www-form-urlencoded style */
if(conn->bits.authneg)
http->postsize = 0;
else
/* the size of the post body */
http->postsize = data->state.infilesize;
/* We only set Content-Length and allow a custom Content-Length if
we don't upload data chunked, as RFC2616 forbids us to set both
kinds of headers (Transfer-Encoding: chunked and Content-Length) */
if((http->postsize != -1) && !data->req.upload_chunky &&
(conn->bits.authneg || !Curl_checkheaders(data, "Content-Length"))) {
/* we allow replacing this header if not during auth negotiation,
although it isn't very wise to actually set your own */
result = Curl_dyn_addf(r, "Content-Length: %" CURL_FORMAT_CURL_OFF_T
"\r\n", http->postsize);
if(result)
return result;
}
if(!Curl_checkheaders(data, "Content-Type")) {
result = Curl_dyn_add(r, "Content-Type: application/"
"x-www-form-urlencoded\r\n");
if(result)
return result;
}
/* For really small posts we don't use Expect: headers at all, and for
the somewhat bigger ones we allow the app to disable it. Just make
sure that the expect100header is always set to the preferred value
here. */
ptr = Curl_checkheaders(data, "Expect");
if(ptr) {
data->state.expect100header =
Curl_compareheader(ptr, "Expect:", "100-continue");
}
else if(http->postsize > EXPECT_100_THRESHOLD || http->postsize < 0) {
result = expect100(data, conn, r);
if(result)
return result;
}
else
data->state.expect100header = FALSE;
#ifndef USE_HYPER
/* With Hyper the body is always passed on separately */
if(data->set.postfields) {
/* In HTTP2, we send request body in DATA frame regardless of
its size. */
if(conn->httpversion != 20 &&
!data->state.expect100header &&
(http->postsize < MAX_INITIAL_POST_SIZE)) {
/* if we don't use expect: 100 AND
postsize is less than MAX_INITIAL_POST_SIZE
then append the post data to the HTTP request header. This limit
is no magic limit but only set to prevent really huge POSTs to
get the data duplicated with malloc() and family. */
/* end of headers! */
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
if(!data->req.upload_chunky) {
/* We're not sending it 'chunked', append it to the request
already now to reduce the number if send() calls */
result = Curl_dyn_addn(r, data->set.postfields,
(size_t)http->postsize);
included_body = http->postsize;
}
else {
if(http->postsize) {
char chunk[16];
/* Append the POST data chunky-style */
msnprintf(chunk, sizeof(chunk), "%x\r\n", (int)http->postsize);
result = Curl_dyn_add(r, chunk);
if(!result) {
included_body = http->postsize + strlen(chunk);
result = Curl_dyn_addn(r, data->set.postfields,
(size_t)http->postsize);
if(!result)
result = Curl_dyn_add(r, "\r\n");
included_body += 2;
}
}
if(!result) {
result = Curl_dyn_add(r, "\x30\x0d\x0a\x0d\x0a");
/* 0 CR LF CR LF */
included_body += 5;
}
}
if(result)
return result;
/* Make sure the progress information is accurate */
Curl_pgrsSetUploadSize(data, http->postsize);
}
else {
/* A huge POST coming up, do data separate from the request */
http->postdata = data->set.postfields;
http->sending = HTTPSEND_BODY;
data->state.fread_func = (curl_read_callback)readmoredata;
data->state.in = (void *)data;
/* set the upload size to the progress meter */
Curl_pgrsSetUploadSize(data, http->postsize);
/* end of headers! */
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
}
}
else
#endif
{
/* end of headers! */
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
if(data->req.upload_chunky && conn->bits.authneg) {
/* Chunky upload is selected and we're negotiating auth still, send
end-of-data only */
result = Curl_dyn_add(r, (char *)"\x30\x0d\x0a\x0d\x0a");
/* 0 CR LF CR LF */
if(result)
return result;
}
else if(data->state.infilesize) {
/* set the upload size to the progress meter */
Curl_pgrsSetUploadSize(data, http->postsize?http->postsize:-1);
/* set the pointer to mark that we will send the post body using the
read callback, but only if we're not in authenticate negotiation */
if(!conn->bits.authneg)
http->postdata = (char *)&http->postdata;
}
}
/* issue the request */
result = Curl_buffer_send(r, data, &data->info.request_size, included_body,
FIRSTSOCKET);
if(result)
failf(data, "Failed sending HTTP POST request");
else
Curl_setup_transfer(data, FIRSTSOCKET, -1, TRUE,
http->postdata?FIRSTSOCKET:-1);
break;
default:
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
/* issue the request */
result = Curl_buffer_send(r, data, &data->info.request_size, 0,
FIRSTSOCKET);
if(result)
failf(data, "Failed sending HTTP request");
else
/* HTTP GET/HEAD download: */
Curl_setup_transfer(data, FIRSTSOCKET, -1, TRUE, -1);
}
return result;
}
#if !defined(CURL_DISABLE_COOKIES)
CURLcode Curl_http_cookies(struct Curl_easy *data,
struct connectdata *conn,
struct dynbuf *r)
{
CURLcode result = CURLE_OK;
char *addcookies = NULL;
if(data->set.str[STRING_COOKIE] && !Curl_checkheaders(data, "Cookie"))
addcookies = data->set.str[STRING_COOKIE];
if(data->cookies || addcookies) {
struct Cookie *co = NULL; /* no cookies from start */
int count = 0;
if(data->cookies && data->state.cookie_engine) {
const char *host = data->state.aptr.cookiehost ?
data->state.aptr.cookiehost : conn->host.name;
const bool secure_context =
conn->handler->protocol&CURLPROTO_HTTPS ||
strcasecompare("localhost", host) ||
!strcmp(host, "127.0.0.1") ||
!strcmp(host, "[::1]") ? TRUE : FALSE;
Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
co = Curl_cookie_getlist(data->cookies, host, data->state.up.path,
secure_context);
Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
}
if(co) {
struct Cookie *store = co;
/* now loop through all cookies that matched */
while(co) {
if(co->value) {
if(0 == count) {
result = Curl_dyn_add(r, "Cookie: ");
if(result)
break;
}
result = Curl_dyn_addf(r, "%s%s=%s", count?"; ":"",
co->name, co->value);
if(result)
break;
count++;
}
co = co->next; /* next cookie please */
}
Curl_cookie_freelist(store);
}
if(addcookies && !result) {
if(!count)
result = Curl_dyn_add(r, "Cookie: ");
if(!result) {
result = Curl_dyn_addf(r, "%s%s", count?"; ":"", addcookies);
count++;
}
}
if(count && !result)
result = Curl_dyn_add(r, "\r\n");
if(result)
return result;
}
return result;
}
#endif
CURLcode Curl_http_range(struct Curl_easy *data,
Curl_HttpReq httpreq)
{
if(data->state.use_range) {
/*
* A range is selected. We use different headers whether we're downloading
* or uploading and we always let customized headers override our internal
* ones if any such are specified.
*/
if(((httpreq == HTTPREQ_GET) || (httpreq == HTTPREQ_HEAD)) &&
!Curl_checkheaders(data, "Range")) {
/* if a line like this was already allocated, free the previous one */
free(data->state.aptr.rangeline);
data->state.aptr.rangeline = aprintf("Range: bytes=%s\r\n",
data->state.range);
}
else if((httpreq == HTTPREQ_POST || httpreq == HTTPREQ_PUT) &&
!Curl_checkheaders(data, "Content-Range")) {
/* if a line like this was already allocated, free the previous one */
free(data->state.aptr.rangeline);
if(data->set.set_resume_from < 0) {
/* Upload resume was asked for, but we don't know the size of the
remote part so we tell the server (and act accordingly) that we
upload the whole file (again) */
data->state.aptr.rangeline =
aprintf("Content-Range: bytes 0-%" CURL_FORMAT_CURL_OFF_T
"/%" CURL_FORMAT_CURL_OFF_T "\r\n",
data->state.infilesize - 1, data->state.infilesize);
}
else if(data->state.resume_from) {
/* This is because "resume" was selected */
curl_off_t total_expected_size =
data->state.resume_from + data->state.infilesize;
data->state.aptr.rangeline =
aprintf("Content-Range: bytes %s%" CURL_FORMAT_CURL_OFF_T
"/%" CURL_FORMAT_CURL_OFF_T "\r\n",
data->state.range, total_expected_size-1,
total_expected_size);
}
else {
/* Range was selected and then we just pass the incoming range and
append total size */
data->state.aptr.rangeline =
aprintf("Content-Range: bytes %s/%" CURL_FORMAT_CURL_OFF_T "\r\n",
data->state.range, data->state.infilesize);
}
if(!data->state.aptr.rangeline)
return CURLE_OUT_OF_MEMORY;
}
}
return CURLE_OK;
}
CURLcode Curl_http_resume(struct Curl_easy *data,
struct connectdata *conn,
Curl_HttpReq httpreq)
{
if((HTTPREQ_POST == httpreq || HTTPREQ_PUT == httpreq) &&
data->state.resume_from) {
/**********************************************************************
* Resuming upload in HTTP means that we PUT or POST and that we have
* got a resume_from value set. The resume value has already created
* a Range: header that will be passed along. We need to "fast forward"
* the file the given number of bytes and decrease the assume upload
* file size before we continue this venture in the dark lands of HTTP.
* Resuming mime/form posting at an offset > 0 has no sense and is ignored.
*********************************************************************/
if(data->state.resume_from < 0) {
/*
* This is meant to get the size of the present remote-file by itself.
* We don't support this now. Bail out!
*/
data->state.resume_from = 0;
}
if(data->state.resume_from && !data->state.this_is_a_follow) {
/* do we still game? */
/* Now, let's read off the proper amount of bytes from the
input. */
int seekerr = CURL_SEEKFUNC_CANTSEEK;
if(conn->seek_func) {
Curl_set_in_callback(data, true);
seekerr = conn->seek_func(conn->seek_client, data->state.resume_from,
SEEK_SET);
Curl_set_in_callback(data, false);
}
if(seekerr != CURL_SEEKFUNC_OK) {
curl_off_t passed = 0;
if(seekerr != CURL_SEEKFUNC_CANTSEEK) {
failf(data, "Could not seek stream");
return CURLE_READ_ERROR;
}
/* when seekerr == CURL_SEEKFUNC_CANTSEEK (can't seek to offset) */
do {
size_t readthisamountnow =
(data->state.resume_from - passed > data->set.buffer_size) ?
(size_t)data->set.buffer_size :
curlx_sotouz(data->state.resume_from - passed);
size_t actuallyread =
data->state.fread_func(data->state.buffer, 1, readthisamountnow,
data->state.in);
passed += actuallyread;
if((actuallyread == 0) || (actuallyread > readthisamountnow)) {
/* this checks for greater-than only to make sure that the
CURL_READFUNC_ABORT return code still aborts */
failf(data, "Could only read %" CURL_FORMAT_CURL_OFF_T
" bytes from the input", passed);
return CURLE_READ_ERROR;
}
} while(passed < data->state.resume_from);
}
/* now, decrease the size of the read */
if(data->state.infilesize>0) {
data->state.infilesize -= data->state.resume_from;
if(data->state.infilesize <= 0) {
failf(data, "File already completely uploaded");
return CURLE_PARTIAL_FILE;
}
}
/* we've passed, proceed as normal */
}
}
return CURLE_OK;
}
CURLcode Curl_http_firstwrite(struct Curl_easy *data,
struct connectdata *conn,
bool *done)
{
struct SingleRequest *k = &data->req;
if(data->req.newurl) {
if(conn->bits.close) {
/* Abort after the headers if "follow Location" is set
and we're set to close anyway. */
k->keepon &= ~KEEP_RECV;
*done = TRUE;
return CURLE_OK;
}
/* We have a new url to load, but since we want to be able to re-use this
connection properly, we read the full response in "ignore more" */
k->ignorebody = TRUE;
infof(data, "Ignoring the response-body");
}
if(data->state.resume_from && !k->content_range &&
(data->state.httpreq == HTTPREQ_GET) &&
!k->ignorebody) {
if(k->size == data->state.resume_from) {
/* The resume point is at the end of file, consider this fine even if it
doesn't allow resume from here. */
infof(data, "The entire document is already downloaded");
connclose(conn, "already downloaded");
/* Abort download */
k->keepon &= ~KEEP_RECV;
*done = TRUE;
return CURLE_OK;
}
/* we wanted to resume a download, although the server doesn't seem to
* support this and we did this with a GET (if it wasn't a GET we did a
* POST or PUT resume) */
failf(data, "HTTP server doesn't seem to support "
"byte ranges. Cannot resume.");
return CURLE_RANGE_ERROR;
}
if(data->set.timecondition && !data->state.range) {
/* A time condition has been set AND no ranges have been requested. This
seems to be what chapter 13.3.4 of RFC 2616 defines to be the correct
action for a HTTP/1.1 client */
if(!Curl_meets_timecondition(data, k->timeofdoc)) {
*done = TRUE;
/* We're simulating a http 304 from server so we return
what should have been returned from the server */
data->info.httpcode = 304;
infof(data, "Simulate a HTTP 304 response!");
/* we abort the transfer before it is completed == we ruin the
re-use ability. Close the connection */
connclose(conn, "Simulated 304 handling");
return CURLE_OK;
}
} /* we have a time condition */
return CURLE_OK;
}
#ifdef HAVE_LIBZ
CURLcode Curl_transferencode(struct Curl_easy *data)
{
if(!Curl_checkheaders(data, "TE") &&
data->set.http_transfer_encoding) {
/* When we are to insert a TE: header in the request, we must also insert
TE in a Connection: header, so we need to merge the custom provided
Connection: header and prevent the original to get sent. Note that if
the user has inserted his/her own TE: header we don't do this magic
but then assume that the user will handle it all! */
char *cptr = Curl_checkheaders(data, "Connection");
#define TE_HEADER "TE: gzip\r\n"
Curl_safefree(data->state.aptr.te);
if(cptr) {
cptr = Curl_copy_header_value(cptr);
if(!cptr)
return CURLE_OUT_OF_MEMORY;
}
/* Create the (updated) Connection: header */
data->state.aptr.te = aprintf("Connection: %s%sTE\r\n" TE_HEADER,
cptr ? cptr : "", (cptr && *cptr) ? ", ":"");
free(cptr);
if(!data->state.aptr.te)
return CURLE_OUT_OF_MEMORY;
}
return CURLE_OK;
}
#endif
#ifndef USE_HYPER
/*
* Curl_http() gets called from the generic multi_do() function when a HTTP
* request is to be performed. This creates and sends a properly constructed
* HTTP request.
*/
CURLcode Curl_http(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
CURLcode result = CURLE_OK;
struct HTTP *http;
Curl_HttpReq httpreq;
const char *te = ""; /* transfer-encoding */
const char *request;
const char *httpstring;
struct dynbuf req;
char *altused = NULL;
const char *p_accept; /* Accept: string */
/* Always consider the DO phase done after this function call, even if there
may be parts of the request that are not yet sent, since we can deal with
the rest of the request in the PERFORM phase. */
*done = TRUE;
if(conn->transport != TRNSPRT_QUIC) {
if(conn->httpversion < 20) { /* unless the connection is re-used and
already http2 */
switch(conn->negnpn) {
case CURL_HTTP_VERSION_2:
conn->httpversion = 20; /* we know we're on HTTP/2 now */
result = Curl_http2_switched(data, NULL, 0);
if(result)
return result;
break;
case CURL_HTTP_VERSION_1_1:
/* continue with HTTP/1.1 when explicitly requested */
break;
default:
/* Check if user wants to use HTTP/2 with clear TCP*/
#ifdef USE_NGHTTP2
if(data->state.httpwant == CURL_HTTP_VERSION_2_PRIOR_KNOWLEDGE) {
#ifndef CURL_DISABLE_PROXY
if(conn->bits.httpproxy && !conn->bits.tunnel_proxy) {
/* We don't support HTTP/2 proxies yet. Also it's debatable
whether or not this setting should apply to HTTP/2 proxies. */
infof(data, "Ignoring HTTP/2 prior knowledge due to proxy");
break;
}
#endif
DEBUGF(infof(data, "HTTP/2 over clean TCP"));
conn->httpversion = 20;
result = Curl_http2_switched(data, NULL, 0);
if(result)
return result;
}
#endif
break;
}
}
else {
/* prepare for a http2 request */
result = Curl_http2_setup(data, conn);
if(result)
return result;
}
}
http = data->req.p.http;
DEBUGASSERT(http);
result = Curl_http_host(data, conn);
if(result)
return result;
result = Curl_http_useragent(data);
if(result)
return result;
Curl_http_method(data, conn, &request, &httpreq);
/* setup the authentication headers */
{
char *pq = NULL;
if(data->state.up.query) {
pq = aprintf("%s?%s", data->state.up.path, data->state.up.query);
if(!pq)
return CURLE_OUT_OF_MEMORY;
}
result = Curl_http_output_auth(data, conn, request, httpreq,
(pq ? pq : data->state.up.path), FALSE);
free(pq);
if(result)
return result;
}
Curl_safefree(data->state.aptr.ref);
if(data->state.referer && !Curl_checkheaders(data, "Referer")) {
data->state.aptr.ref = aprintf("Referer: %s\r\n", data->state.referer);
if(!data->state.aptr.ref)
return CURLE_OUT_OF_MEMORY;
}
if(!Curl_checkheaders(data, "Accept-Encoding") &&
data->set.str[STRING_ENCODING]) {
Curl_safefree(data->state.aptr.accept_encoding);
data->state.aptr.accept_encoding =
aprintf("Accept-Encoding: %s\r\n", data->set.str[STRING_ENCODING]);
if(!data->state.aptr.accept_encoding)
return CURLE_OUT_OF_MEMORY;
}
else
Curl_safefree(data->state.aptr.accept_encoding);
#ifdef HAVE_LIBZ
/* we only consider transfer-encoding magic if libz support is built-in */
result = Curl_transferencode(data);
if(result)
return result;
#endif
result = Curl_http_body(data, conn, httpreq, &te);
if(result)
return result;
p_accept = Curl_checkheaders(data, "Accept")?NULL:"Accept: */*\r\n";
result = Curl_http_resume(data, conn, httpreq);
if(result)
return result;
result = Curl_http_range(data, httpreq);
if(result)
return result;
httpstring = get_http_string(data, conn);
/* initialize a dynamic send-buffer */
Curl_dyn_init(&req, DYN_HTTP_REQUEST);
/* make sure the header buffer is reset - if there are leftovers from a
previous transfer */
Curl_dyn_reset(&data->state.headerb);
/* add the main request stuff */
/* GET/HEAD/POST/PUT */
result = Curl_dyn_addf(&req, "%s ", request);
if(!result)
result = Curl_http_target(data, conn, &req);
if(result) {
Curl_dyn_free(&req);
return result;
}
#ifndef CURL_DISABLE_ALTSVC
if(conn->bits.altused && !Curl_checkheaders(data, "Alt-Used")) {
altused = aprintf("Alt-Used: %s:%d\r\n",
conn->conn_to_host.name, conn->conn_to_port);
if(!altused) {
Curl_dyn_free(&req);
return CURLE_OUT_OF_MEMORY;
}
}
#endif
result =
Curl_dyn_addf(&req,
" HTTP/%s\r\n" /* HTTP version */
"%s" /* host */
"%s" /* proxyuserpwd */
"%s" /* userpwd */
"%s" /* range */
"%s" /* user agent */
"%s" /* accept */
"%s" /* TE: */
"%s" /* accept-encoding */
"%s" /* referer */
"%s" /* Proxy-Connection */
"%s" /* transfer-encoding */
"%s",/* Alt-Used */
httpstring,
(data->state.aptr.host?data->state.aptr.host:""),
data->state.aptr.proxyuserpwd?
data->state.aptr.proxyuserpwd:"",
data->state.aptr.userpwd?data->state.aptr.userpwd:"",
(data->state.use_range && data->state.aptr.rangeline)?
data->state.aptr.rangeline:"",
(data->set.str[STRING_USERAGENT] &&
*data->set.str[STRING_USERAGENT] &&
data->state.aptr.uagent)?
data->state.aptr.uagent:"",
p_accept?p_accept:"",
data->state.aptr.te?data->state.aptr.te:"",
(data->set.str[STRING_ENCODING] &&
*data->set.str[STRING_ENCODING] &&
data->state.aptr.accept_encoding)?
data->state.aptr.accept_encoding:"",
(data->state.referer && data->state.aptr.ref)?
data->state.aptr.ref:"" /* Referer: <data> */,
#ifndef CURL_DISABLE_PROXY
(conn->bits.httpproxy &&
!conn->bits.tunnel_proxy &&
!Curl_checkheaders(data, "Proxy-Connection") &&
!Curl_checkProxyheaders(data, conn, "Proxy-Connection"))?
"Proxy-Connection: Keep-Alive\r\n":"",
#else
"",
#endif
te,
altused ? altused : ""
);
/* clear userpwd and proxyuserpwd to avoid re-using old credentials
* from re-used connections */
Curl_safefree(data->state.aptr.userpwd);
Curl_safefree(data->state.aptr.proxyuserpwd);
free(altused);
if(result) {
Curl_dyn_free(&req);
return result;
}
if(!(conn->handler->flags&PROTOPT_SSL) &&
conn->httpversion != 20 &&
(data->state.httpwant == CURL_HTTP_VERSION_2)) {
/* append HTTP2 upgrade magic stuff to the HTTP request if it isn't done
over SSL */
result = Curl_http2_request_upgrade(&req, data);
if(result) {
Curl_dyn_free(&req);
return result;
}
}
result = Curl_http_cookies(data, conn, &req);
if(!result)
result = Curl_add_timecondition(data, &req);
if(!result)
result = Curl_add_custom_headers(data, FALSE, &req);
if(!result) {
http->postdata = NULL; /* nothing to post at this point */
if((httpreq == HTTPREQ_GET) ||
(httpreq == HTTPREQ_HEAD))
Curl_pgrsSetUploadSize(data, 0); /* nothing */
/* bodysend takes ownership of the 'req' memory on success */
result = Curl_http_bodysend(data, conn, &req, httpreq);
}
if(result) {
Curl_dyn_free(&req);
return result;
}
if((http->postsize > -1) &&
(http->postsize <= data->req.writebytecount) &&
(http->sending != HTTPSEND_REQUEST))
data->req.upload_done = TRUE;
if(data->req.writebytecount) {
/* if a request-body has been sent off, we make sure this progress is noted
properly */
Curl_pgrsSetUploadCounter(data, data->req.writebytecount);
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
if(!http->postsize) {
/* already sent the entire request body, mark the "upload" as
complete */
infof(data, "upload completely sent off: %" CURL_FORMAT_CURL_OFF_T
" out of %" CURL_FORMAT_CURL_OFF_T " bytes",
data->req.writebytecount, http->postsize);
data->req.upload_done = TRUE;
data->req.keepon &= ~KEEP_SEND; /* we're done writing */
data->req.exp100 = EXP100_SEND_DATA; /* already sent */
Curl_expire_done(data, EXPIRE_100_TIMEOUT);
}
}
if((conn->httpversion == 20) && data->req.upload_chunky)
/* upload_chunky was set above to set up the request in a chunky fashion,
but is disabled here again to avoid that the chunked encoded version is
actually used when sending the request body over h2 */
data->req.upload_chunky = FALSE;
return result;
}
#endif /* USE_HYPER */
typedef enum {
STATUS_UNKNOWN, /* not enough data to tell yet */
STATUS_DONE, /* a status line was read */
STATUS_BAD /* not a status line */
} statusline;
/* Check a string for a prefix. Check no more than 'len' bytes */
static bool checkprefixmax(const char *prefix, const char *buffer, size_t len)
{
size_t ch = CURLMIN(strlen(prefix), len);
return curl_strnequal(prefix, buffer, ch);
}
/*
* checkhttpprefix()
*
* Returns TRUE if member of the list matches prefix of string
*/
static statusline
checkhttpprefix(struct Curl_easy *data,
const char *s, size_t len)
{
struct curl_slist *head = data->set.http200aliases;
statusline rc = STATUS_BAD;
statusline onmatch = len >= 5? STATUS_DONE : STATUS_UNKNOWN;
#ifdef CURL_DOES_CONVERSIONS
/* convert from the network encoding using a scratch area */
char *scratch = strdup(s);
if(NULL == scratch) {
failf(data, "Failed to allocate memory for conversion!");
return FALSE; /* can't return CURLE_OUT_OF_MEMORY so return FALSE */
}
if(CURLE_OK != Curl_convert_from_network(data, scratch, strlen(s) + 1)) {
/* Curl_convert_from_network calls failf if unsuccessful */
free(scratch);
return FALSE; /* can't return CURLE_foobar so return FALSE */
}
s = scratch;
#endif /* CURL_DOES_CONVERSIONS */
while(head) {
if(checkprefixmax(head->data, s, len)) {
rc = onmatch;
break;
}
head = head->next;
}
if((rc != STATUS_DONE) && (checkprefixmax("HTTP/", s, len)))
rc = onmatch;
#ifdef CURL_DOES_CONVERSIONS
free(scratch);
#endif /* CURL_DOES_CONVERSIONS */
return rc;
}
#ifndef CURL_DISABLE_RTSP
static statusline
checkrtspprefix(struct Curl_easy *data,
const char *s, size_t len)
{
statusline result = STATUS_BAD;
statusline onmatch = len >= 5? STATUS_DONE : STATUS_UNKNOWN;
#ifdef CURL_DOES_CONVERSIONS
/* convert from the network encoding using a scratch area */
char *scratch = strdup(s);
if(NULL == scratch) {
failf(data, "Failed to allocate memory for conversion!");
return FALSE; /* can't return CURLE_OUT_OF_MEMORY so return FALSE */
}
if(CURLE_OK != Curl_convert_from_network(data, scratch, strlen(s) + 1)) {
/* Curl_convert_from_network calls failf if unsuccessful */
result = FALSE; /* can't return CURLE_foobar so return FALSE */
}
else if(checkprefixmax("RTSP/", scratch, len))
result = onmatch;
free(scratch);
#else
(void)data; /* unused */
if(checkprefixmax("RTSP/", s, len))
result = onmatch;
#endif /* CURL_DOES_CONVERSIONS */
return result;
}
#endif /* CURL_DISABLE_RTSP */
static statusline
checkprotoprefix(struct Curl_easy *data, struct connectdata *conn,
const char *s, size_t len)
{
#ifndef CURL_DISABLE_RTSP
if(conn->handler->protocol & CURLPROTO_RTSP)
return checkrtspprefix(data, s, len);
#else
(void)conn;
#endif /* CURL_DISABLE_RTSP */
return checkhttpprefix(data, s, len);
}
/*
* Curl_http_header() parses a single response header.
*/
CURLcode Curl_http_header(struct Curl_easy *data, struct connectdata *conn,
char *headp)
{
CURLcode result;
struct SingleRequest *k = &data->req;
/* Check for Content-Length: header lines to get size */
if(!k->http_bodyless &&
!data->set.ignorecl && checkprefix("Content-Length:", headp)) {
curl_off_t contentlength;
CURLofft offt = curlx_strtoofft(headp + strlen("Content-Length:"),
NULL, 10, &contentlength);
if(offt == CURL_OFFT_OK) {
k->size = contentlength;
k->maxdownload = k->size;
}
else if(offt == CURL_OFFT_FLOW) {
/* out of range */
if(data->set.max_filesize) {
failf(data, "Maximum file size exceeded");
return CURLE_FILESIZE_EXCEEDED;
}
streamclose(conn, "overflow content-length");
infof(data, "Overflow Content-Length: value!");
}
else {
/* negative or just rubbish - bad HTTP */
failf(data, "Invalid Content-Length: value");
return CURLE_WEIRD_SERVER_REPLY;
}
}
/* check for Content-Type: header lines to get the MIME-type */
else if(checkprefix("Content-Type:", headp)) {
char *contenttype = Curl_copy_header_value(headp);
if(!contenttype)
return CURLE_OUT_OF_MEMORY;
if(!*contenttype)
/* ignore empty data */
free(contenttype);
else {
Curl_safefree(data->info.contenttype);
data->info.contenttype = contenttype;
}
}
#ifndef CURL_DISABLE_PROXY
else if((conn->httpversion == 10) &&
conn->bits.httpproxy &&
Curl_compareheader(headp, "Proxy-Connection:", "keep-alive")) {
/*
* When a HTTP/1.0 reply comes when using a proxy, the
* 'Proxy-Connection: keep-alive' line tells us the
* connection will be kept alive for our pleasure.
* Default action for 1.0 is to close.
*/
connkeep(conn, "Proxy-Connection keep-alive"); /* don't close */
infof(data, "HTTP/1.0 proxy connection set to keep alive!");
}
else if((conn->httpversion == 11) &&
conn->bits.httpproxy &&
Curl_compareheader(headp, "Proxy-Connection:", "close")) {
/*
* We get a HTTP/1.1 response from a proxy and it says it'll
* close down after this transfer.
*/
connclose(conn, "Proxy-Connection: asked to close after done");
infof(data, "HTTP/1.1 proxy connection set close!");
}
#endif
else if((conn->httpversion == 10) &&
Curl_compareheader(headp, "Connection:", "keep-alive")) {
/*
* A HTTP/1.0 reply with the 'Connection: keep-alive' line
* tells us the connection will be kept alive for our
* pleasure. Default action for 1.0 is to close.
*
* [RFC2068, section 19.7.1] */
connkeep(conn, "Connection keep-alive");
infof(data, "HTTP/1.0 connection set to keep alive!");
}
else if(Curl_compareheader(headp, "Connection:", "close")) {
/*
* [RFC 2616, section 8.1.2.1]
* "Connection: close" is HTTP/1.1 language and means that
* the connection will close when this request has been
* served.
*/
streamclose(conn, "Connection: close used");
}
else if(!k->http_bodyless && checkprefix("Transfer-Encoding:", headp)) {
/* One or more encodings. We check for chunked and/or a compression
algorithm. */
/*
* [RFC 2616, section 3.6.1] A 'chunked' transfer encoding
* means that the server will send a series of "chunks". Each
* chunk starts with line with info (including size of the
* coming block) (terminated with CRLF), then a block of data
* with the previously mentioned size. There can be any amount
* of chunks, and a chunk-data set to zero signals the
* end-of-chunks. */
result = Curl_build_unencoding_stack(data,
headp + strlen("Transfer-Encoding:"),
TRUE);
if(result)
return result;
if(!k->chunk) {
/* if this isn't chunked, only close can signal the end of this transfer
as Content-Length is said not to be trusted for transfer-encoding! */
connclose(conn, "HTTP/1.1 transfer-encoding without chunks");
k->ignore_cl = TRUE;
}
}
else if(!k->http_bodyless && checkprefix("Content-Encoding:", headp) &&
data->set.str[STRING_ENCODING]) {
/*
* Process Content-Encoding. Look for the values: identity,
* gzip, deflate, compress, x-gzip and x-compress. x-gzip and
* x-compress are the same as gzip and compress. (Sec 3.5 RFC
* 2616). zlib cannot handle compress. However, errors are
* handled further down when the response body is processed
*/
result = Curl_build_unencoding_stack(data,
headp + strlen("Content-Encoding:"),
FALSE);
if(result)
return result;
}
else if(checkprefix("Retry-After:", headp)) {
/* Retry-After = HTTP-date / delay-seconds */
curl_off_t retry_after = 0; /* zero for unknown or "now" */
time_t date = Curl_getdate_capped(headp + strlen("Retry-After:"));
if(-1 == date) {
/* not a date, try it as a decimal number */
(void)curlx_strtoofft(headp + strlen("Retry-After:"),
NULL, 10, &retry_after);
}
else
/* convert date to number of seconds into the future */
retry_after = date - time(NULL);
data->info.retry_after = retry_after; /* store it */
}
else if(!k->http_bodyless && checkprefix("Content-Range:", headp)) {
/* Content-Range: bytes [num]-
Content-Range: bytes: [num]-
Content-Range: [num]-
Content-Range: [asterisk]/[total]
The second format was added since Sun's webserver
JavaWebServer/1.1.1 obviously sends the header this way!
The third added since some servers use that!
The forth means the requested range was unsatisfied.
*/
char *ptr = headp + strlen("Content-Range:");
/* Move forward until first digit or asterisk */
while(*ptr && !ISDIGIT(*ptr) && *ptr != '*')
ptr++;
/* if it truly stopped on a digit */
if(ISDIGIT(*ptr)) {
if(!curlx_strtoofft(ptr, NULL, 10, &k->offset)) {
if(data->state.resume_from == k->offset)
/* we asked for a resume and we got it */
k->content_range = TRUE;
}
}
else
data->state.resume_from = 0; /* get everything */
}
#if !defined(CURL_DISABLE_COOKIES)
else if(data->cookies && data->state.cookie_engine &&
checkprefix("Set-Cookie:", headp)) {
/* If there is a custom-set Host: name, use it here, or else use real peer
host name. */
const char *host = data->state.aptr.cookiehost?
data->state.aptr.cookiehost:conn->host.name;
const bool secure_context =
conn->handler->protocol&CURLPROTO_HTTPS ||
strcasecompare("localhost", host) ||
!strcmp(host, "127.0.0.1") ||
!strcmp(host, "[::1]") ? TRUE : FALSE;
Curl_share_lock(data, CURL_LOCK_DATA_COOKIE,
CURL_LOCK_ACCESS_SINGLE);
Curl_cookie_add(data, data->cookies, TRUE, FALSE,
headp + strlen("Set-Cookie:"), host,
data->state.up.path, secure_context);
Curl_share_unlock(data, CURL_LOCK_DATA_COOKIE);
}
#endif
else if(!k->http_bodyless && checkprefix("Last-Modified:", headp) &&
(data->set.timecondition || data->set.get_filetime) ) {
k->timeofdoc = Curl_getdate_capped(headp + strlen("Last-Modified:"));
if(data->set.get_filetime)
data->info.filetime = k->timeofdoc;
}
else if((checkprefix("WWW-Authenticate:", headp) &&
(401 == k->httpcode)) ||
(checkprefix("Proxy-authenticate:", headp) &&
(407 == k->httpcode))) {
bool proxy = (k->httpcode == 407) ? TRUE : FALSE;
char *auth = Curl_copy_header_value(headp);
if(!auth)
return CURLE_OUT_OF_MEMORY;
result = Curl_http_input_auth(data, proxy, auth);
free(auth);
if(result)
return result;
}
#ifdef USE_SPNEGO
else if(checkprefix("Persistent-Auth:", headp)) {
struct negotiatedata *negdata = &conn->negotiate;
struct auth *authp = &data->state.authhost;
if(authp->picked == CURLAUTH_NEGOTIATE) {
char *persistentauth = Curl_copy_header_value(headp);
if(!persistentauth)
return CURLE_OUT_OF_MEMORY;
negdata->noauthpersist = checkprefix("false", persistentauth)?
TRUE:FALSE;
negdata->havenoauthpersist = TRUE;
infof(data, "Negotiate: noauthpersist -> %d, header part: %s",
negdata->noauthpersist, persistentauth);
free(persistentauth);
}
}
#endif
else if((k->httpcode >= 300 && k->httpcode < 400) &&
checkprefix("Location:", headp) &&
!data->req.location) {
/* this is the URL that the server advises us to use instead */
char *location = Curl_copy_header_value(headp);
if(!location)
return CURLE_OUT_OF_MEMORY;
if(!*location)
/* ignore empty data */
free(location);
else {
data->req.location = location;
if(data->set.http_follow_location) {
DEBUGASSERT(!data->req.newurl);
data->req.newurl = strdup(data->req.location); /* clone */
if(!data->req.newurl)
return CURLE_OUT_OF_MEMORY;
/* some cases of POST and PUT etc needs to rewind the data
stream at this point */
result = http_perhapsrewind(data, conn);
if(result)
return result;
}
}
}
#ifndef CURL_DISABLE_HSTS
/* If enabled, the header is incoming and this is over HTTPS */
else if(data->hsts && checkprefix("Strict-Transport-Security:", headp) &&
(conn->handler->flags & PROTOPT_SSL)) {
CURLcode check =
Curl_hsts_parse(data->hsts, data->state.up.hostname,
headp + strlen("Strict-Transport-Security:"));
if(check)
infof(data, "Illegal STS header skipped");
#ifdef DEBUGBUILD
else
infof(data, "Parsed STS header fine (%zu entries)",
data->hsts->list.size);
#endif
}
#endif
#ifndef CURL_DISABLE_ALTSVC
/* If enabled, the header is incoming and this is over HTTPS */
else if(data->asi && checkprefix("Alt-Svc:", headp) &&
((conn->handler->flags & PROTOPT_SSL) ||
#ifdef CURLDEBUG
/* allow debug builds to circumvent the HTTPS restriction */
getenv("CURL_ALTSVC_HTTP")
#else
0
#endif
)) {
/* the ALPN of the current request */
enum alpnid id = (conn->httpversion == 20) ? ALPN_h2 : ALPN_h1;
result = Curl_altsvc_parse(data, data->asi,
headp + strlen("Alt-Svc:"),
id, conn->host.name,
curlx_uitous(conn->remote_port));
if(result)
return result;
}
#endif
else if(conn->handler->protocol & CURLPROTO_RTSP) {
result = Curl_rtsp_parseheader(data, headp);
if(result)
return result;
}
return CURLE_OK;
}
/*
* Called after the first HTTP response line (the status line) has been
* received and parsed.
*/
CURLcode Curl_http_statusline(struct Curl_easy *data,
struct connectdata *conn)
{
struct SingleRequest *k = &data->req;
data->info.httpcode = k->httpcode;
data->info.httpversion = conn->httpversion;
if(!data->state.httpversion ||
data->state.httpversion > conn->httpversion)
/* store the lowest server version we encounter */
data->state.httpversion = conn->httpversion;
/*
* This code executes as part of processing the header. As a
* result, it's not totally clear how to interpret the
* response code yet as that depends on what other headers may
* be present. 401 and 407 may be errors, but may be OK
* depending on how authentication is working. Other codes
* are definitely errors, so give up here.
*/
if(data->state.resume_from && data->state.httpreq == HTTPREQ_GET &&
k->httpcode == 416) {
/* "Requested Range Not Satisfiable", just proceed and
pretend this is no error */
k->ignorebody = TRUE; /* Avoid appending error msg to good data. */
}
if(conn->httpversion == 10) {
/* Default action for HTTP/1.0 must be to close, unless
we get one of those fancy headers that tell us the
server keeps it open for us! */
infof(data, "HTTP 1.0, assume close after body");
connclose(conn, "HTTP/1.0 close after body");
}
else if(conn->httpversion == 20 ||
(k->upgr101 == UPGR101_REQUESTED && k->httpcode == 101)) {
DEBUGF(infof(data, "HTTP/2 found, allow multiplexing"));
/* HTTP/2 cannot avoid multiplexing since it is a core functionality
of the protocol */
conn->bundle->multiuse = BUNDLE_MULTIPLEX;
}
else if(conn->httpversion >= 11 &&
!conn->bits.close) {
/* If HTTP version is >= 1.1 and connection is persistent */
DEBUGF(infof(data,
"HTTP 1.1 or later with persistent connection"));
}
k->http_bodyless = k->httpcode >= 100 && k->httpcode < 200;
switch(k->httpcode) {
case 304:
/* (quote from RFC2616, section 10.3.5): The 304 response
* MUST NOT contain a message-body, and thus is always
* terminated by the first empty line after the header
* fields. */
if(data->set.timecondition)
data->info.timecond = TRUE;
/* FALLTHROUGH */
case 204:
/* (quote from RFC2616, section 10.2.5): The server has
* fulfilled the request but does not need to return an
* entity-body ... The 204 response MUST NOT include a
* message-body, and thus is always terminated by the first
* empty line after the header fields. */
k->size = 0;
k->maxdownload = 0;
k->http_bodyless = TRUE;
break;
default:
break;
}
return CURLE_OK;
}
/* Content-Length must be ignored if any Transfer-Encoding is present in the
response. Refer to RFC 7230 section 3.3.3 and RFC2616 section 4.4. This is
figured out here after all headers have been received but before the final
call to the user's header callback, so that a valid content length can be
retrieved by the user in the final call. */
CURLcode Curl_http_size(struct Curl_easy *data)
{
struct SingleRequest *k = &data->req;
if(data->req.ignore_cl || k->chunk) {
k->size = k->maxdownload = -1;
}
else if(k->size != -1) {
if(data->set.max_filesize &&
k->size > data->set.max_filesize) {
failf(data, "Maximum file size exceeded");
return CURLE_FILESIZE_EXCEEDED;
}
Curl_pgrsSetDownloadSize(data, k->size);
k->maxdownload = k->size;
}
return CURLE_OK;
}
/*
* Read any HTTP header lines from the server and pass them to the client app.
*/
CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
struct connectdata *conn,
ssize_t *nread,
bool *stop_reading)
{
CURLcode result;
struct SingleRequest *k = &data->req;
ssize_t onread = *nread;
char *ostr = k->str;
char *headp;
char *str_start;
char *end_ptr;
/* header line within buffer loop */
do {
size_t rest_length;
size_t full_length;
int writetype;
/* str_start is start of line within buf */
str_start = k->str;
/* data is in network encoding so use 0x0a instead of '\n' */
end_ptr = memchr(str_start, 0x0a, *nread);
if(!end_ptr) {
/* Not a complete header line within buffer, append the data to
the end of the headerbuff. */
result = Curl_dyn_addn(&data->state.headerb, str_start, *nread);
if(result)
return result;
if(!k->headerline) {
/* check if this looks like a protocol header */
statusline st =
checkprotoprefix(data, conn,
Curl_dyn_ptr(&data->state.headerb),
Curl_dyn_len(&data->state.headerb));
if(st == STATUS_BAD) {
/* this is not the beginning of a protocol first header line */
k->header = FALSE;
k->badheader = HEADER_ALLBAD;
streamclose(conn, "bad HTTP: No end-of-message indicator");
if(!data->set.http09_allowed) {
failf(data, "Received HTTP/0.9 when not allowed");
return CURLE_UNSUPPORTED_PROTOCOL;
}
break;
}
}
break; /* read more and try again */
}
/* decrease the size of the remaining (supposed) header line */
rest_length = (end_ptr - k->str) + 1;
*nread -= (ssize_t)rest_length;
k->str = end_ptr + 1; /* move past new line */
full_length = k->str - str_start;
result = Curl_dyn_addn(&data->state.headerb, str_start, full_length);
if(result)
return result;
/****
* We now have a FULL header line in 'headerb'.
*****/
if(!k->headerline) {
/* the first read header */
statusline st = checkprotoprefix(data, conn,
Curl_dyn_ptr(&data->state.headerb),
Curl_dyn_len(&data->state.headerb));
if(st == STATUS_BAD) {
streamclose(conn, "bad HTTP: No end-of-message indicator");
/* this is not the beginning of a protocol first header line */
if(!data->set.http09_allowed) {
failf(data, "Received HTTP/0.9 when not allowed");
return CURLE_UNSUPPORTED_PROTOCOL;
}
k->header = FALSE;
if(*nread)
/* since there's more, this is a partial bad header */
k->badheader = HEADER_PARTHEADER;
else {
/* this was all we read so it's all a bad header */
k->badheader = HEADER_ALLBAD;
*nread = onread;
k->str = ostr;
return CURLE_OK;
}
break;
}
}
/* headers are in network encoding so use 0x0a and 0x0d instead of '\n'
and '\r' */
headp = Curl_dyn_ptr(&data->state.headerb);
if((0x0a == *headp) || (0x0d == *headp)) {
size_t headerlen;
/* Zero-length header line means end of headers! */
#ifdef CURL_DOES_CONVERSIONS
if(0x0d == *headp) {
*headp = '\r'; /* replace with CR in host encoding */
headp++; /* pass the CR byte */
}
if(0x0a == *headp) {
*headp = '\n'; /* replace with LF in host encoding */
headp++; /* pass the LF byte */
}
#else
if('\r' == *headp)
headp++; /* pass the \r byte */
if('\n' == *headp)
headp++; /* pass the \n byte */
#endif /* CURL_DOES_CONVERSIONS */
if(100 <= k->httpcode && 199 >= k->httpcode) {
/* "A user agent MAY ignore unexpected 1xx status responses." */
switch(k->httpcode) {
case 100:
/*
* We have made a HTTP PUT or POST and this is 1.1-lingo
* that tells us that the server is OK with this and ready
* to receive the data.
* However, we'll get more headers now so we must get
* back into the header-parsing state!
*/
k->header = TRUE;
k->headerline = 0; /* restart the header line counter */
/* if we did wait for this do enable write now! */
if(k->exp100 > EXP100_SEND_DATA) {
k->exp100 = EXP100_SEND_DATA;
k->keepon |= KEEP_SEND;
Curl_expire_done(data, EXPIRE_100_TIMEOUT);
}
break;
case 101:
/* Switching Protocols */
if(k->upgr101 == UPGR101_REQUESTED) {
/* Switching to HTTP/2 */
infof(data, "Received 101");
k->upgr101 = UPGR101_RECEIVED;
/* we'll get more headers (HTTP/2 response) */
k->header = TRUE;
k->headerline = 0; /* restart the header line counter */
/* switch to http2 now. The bytes after response headers
are also processed here, otherwise they are lost. */
result = Curl_http2_switched(data, k->str, *nread);
if(result)
return result;
*nread = 0;
}
else {
/* Switching to another protocol (e.g. WebSocket) */
k->header = FALSE; /* no more header to parse! */
}
break;
default:
/* the status code 1xx indicates a provisional response, so
we'll get another set of headers */
k->header = TRUE;
k->headerline = 0; /* restart the header line counter */
break;
}
}
else {
k->header = FALSE; /* no more header to parse! */
if((k->size == -1) && !k->chunk && !conn->bits.close &&
(conn->httpversion == 11) &&
!(conn->handler->protocol & CURLPROTO_RTSP) &&
data->state.httpreq != HTTPREQ_HEAD) {
/* On HTTP 1.1, when connection is not to get closed, but no
Content-Length nor Transfer-Encoding chunked have been
received, according to RFC2616 section 4.4 point 5, we
assume that the server will close the connection to
signal the end of the document. */
infof(data, "no chunk, no close, no size. Assume close to "
"signal end");
streamclose(conn, "HTTP: No end-of-message indicator");
}
}
if(!k->header) {
result = Curl_http_size(data);
if(result)
return result;
}
/* At this point we have some idea about the fate of the connection.
If we are closing the connection it may result auth failure. */
#if defined(USE_NTLM)
if(conn->bits.close &&
(((data->req.httpcode == 401) &&
(conn->http_ntlm_state == NTLMSTATE_TYPE2)) ||
((data->req.httpcode == 407) &&
(conn->proxy_ntlm_state == NTLMSTATE_TYPE2)))) {
infof(data, "Connection closure while negotiating auth (HTTP 1.0?)");
data->state.authproblem = TRUE;
}
#endif
#if defined(USE_SPNEGO)
if(conn->bits.close &&
(((data->req.httpcode == 401) &&
(conn->http_negotiate_state == GSS_AUTHRECV)) ||
((data->req.httpcode == 407) &&
(conn->proxy_negotiate_state == GSS_AUTHRECV)))) {
infof(data, "Connection closure while negotiating auth (HTTP 1.0?)");
data->state.authproblem = TRUE;
}
if((conn->http_negotiate_state == GSS_AUTHDONE) &&
(data->req.httpcode != 401)) {
conn->http_negotiate_state = GSS_AUTHSUCC;
}
if((conn->proxy_negotiate_state == GSS_AUTHDONE) &&
(data->req.httpcode != 407)) {
conn->proxy_negotiate_state = GSS_AUTHSUCC;
}
#endif
/* now, only output this if the header AND body are requested:
*/
writetype = CLIENTWRITE_HEADER;
if(data->set.include_header)
writetype |= CLIENTWRITE_BODY;
headerlen = Curl_dyn_len(&data->state.headerb);
result = Curl_client_write(data, writetype,
Curl_dyn_ptr(&data->state.headerb),
headerlen);
if(result)
return result;
data->info.header_size += (long)headerlen;
data->req.headerbytecount += (long)headerlen;
/*
* When all the headers have been parsed, see if we should give
* up and return an error.
*/
if(http_should_fail(data)) {
failf(data, "The requested URL returned error: %d",
k->httpcode);
return CURLE_HTTP_RETURNED_ERROR;
}
data->req.deductheadercount =
(100 <= k->httpcode && 199 >= k->httpcode)?data->req.headerbytecount:0;
/* Curl_http_auth_act() checks what authentication methods
* that are available and decides which one (if any) to
* use. It will set 'newurl' if an auth method was picked. */
result = Curl_http_auth_act(data);
if(result)
return result;
if(k->httpcode >= 300) {
if((!conn->bits.authneg) && !conn->bits.close &&
!conn->bits.rewindaftersend) {
/*
* General treatment of errors when about to send data. Including :
* "417 Expectation Failed", while waiting for 100-continue.
*
* The check for close above is done simply because of something
* else has already deemed the connection to get closed then
* something else should've considered the big picture and we
* avoid this check.
*
* rewindaftersend indicates that something has told libcurl to
* continue sending even if it gets discarded
*/
switch(data->state.httpreq) {
case HTTPREQ_PUT:
case HTTPREQ_POST:
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
/* We got an error response. If this happened before the whole
* request body has been sent we stop sending and mark the
* connection for closure after we've read the entire response.
*/
Curl_expire_done(data, EXPIRE_100_TIMEOUT);
if(!k->upload_done) {
if((k->httpcode == 417) && data->state.expect100header) {
/* 417 Expectation Failed - try again without the Expect
header */
infof(data, "Got 417 while waiting for a 100");
data->state.disableexpect = TRUE;
DEBUGASSERT(!data->req.newurl);
data->req.newurl = strdup(data->state.url);
Curl_done_sending(data, k);
}
else if(data->set.http_keep_sending_on_error) {
infof(data, "HTTP error before end of send, keep sending");
if(k->exp100 > EXP100_SEND_DATA) {
k->exp100 = EXP100_SEND_DATA;
k->keepon |= KEEP_SEND;
}
}
else {
infof(data, "HTTP error before end of send, stop sending");
streamclose(conn, "Stop sending data before everything sent");
result = Curl_done_sending(data, k);
if(result)
return result;
k->upload_done = TRUE;
if(data->state.expect100header)
k->exp100 = EXP100_FAILED;
}
}
break;
default: /* default label present to avoid compiler warnings */
break;
}
}
if(conn->bits.rewindaftersend) {
/* We rewind after a complete send, so thus we continue
sending now */
infof(data, "Keep sending data to get tossed away!");
k->keepon |= KEEP_SEND;
}
}
if(!k->header) {
/*
* really end-of-headers.
*
* If we requested a "no body", this is a good time to get
* out and return home.
*/
if(data->set.opt_no_body)
*stop_reading = TRUE;
#ifndef CURL_DISABLE_RTSP
else if((conn->handler->protocol & CURLPROTO_RTSP) &&
(data->set.rtspreq == RTSPREQ_DESCRIBE) &&
(k->size <= -1))
/* Respect section 4.4 of rfc2326: If the Content-Length header is
absent, a length 0 must be assumed. It will prevent libcurl from
hanging on DESCRIBE request that got refused for whatever
reason */
*stop_reading = TRUE;
#endif
/* If max download size is *zero* (nothing) we already have
nothing and can safely return ok now! But for HTTP/2, we'd
like to call http2_handle_stream_close to properly close a
stream. In order to do this, we keep reading until we
close the stream. */
if(0 == k->maxdownload
#if defined(USE_NGHTTP2)
&& !((conn->handler->protocol & PROTO_FAMILY_HTTP) &&
conn->httpversion == 20)
#endif
)
*stop_reading = TRUE;
if(*stop_reading) {
/* we make sure that this socket isn't read more now */
k->keepon &= ~KEEP_RECV;
}
Curl_debug(data, CURLINFO_HEADER_IN, str_start, headerlen);
break; /* exit header line loop */
}
/* We continue reading headers, reset the line-based header */
Curl_dyn_reset(&data->state.headerb);
continue;
}
/*
* Checks for special headers coming up.
*/
if(!k->headerline++) {
/* This is the first header, it MUST be the error code line
or else we consider this to be the body right away! */
int httpversion_major;
int rtspversion_major;
int nc = 0;
#ifdef CURL_DOES_CONVERSIONS
#define HEADER1 scratch
#define SCRATCHSIZE 21
CURLcode res;
char scratch[SCRATCHSIZE + 1]; /* "HTTP/major.minor 123" */
/* We can't really convert this yet because we don't know if it's the
1st header line or the body. So we do a partial conversion into a
scratch area, leaving the data at 'headp' as-is.
*/
strncpy(&scratch[0], headp, SCRATCHSIZE);
scratch[SCRATCHSIZE] = 0; /* null terminate */
res = Curl_convert_from_network(data,
&scratch[0],
SCRATCHSIZE);
if(res)
/* Curl_convert_from_network calls failf if unsuccessful */
return res;
#else
#define HEADER1 headp /* no conversion needed, just use headp */
#endif /* CURL_DOES_CONVERSIONS */
if(conn->handler->protocol & PROTO_FAMILY_HTTP) {
/*
* https://tools.ietf.org/html/rfc7230#section-3.1.2
*
* The response code is always a three-digit number in HTTP as the spec
* says. We allow any three-digit number here, but we cannot make
* guarantees on future behaviors since it isn't within the protocol.
*/
char separator;
char twoorthree[2];
int httpversion = 0;
char digit4 = 0;
nc = sscanf(HEADER1,
" HTTP/%1d.%1d%c%3d%c",
&httpversion_major,
&httpversion,
&separator,
&k->httpcode,
&digit4);
if(nc == 1 && httpversion_major >= 2 &&
2 == sscanf(HEADER1, " HTTP/%1[23] %d", twoorthree, &k->httpcode)) {
conn->httpversion = 0;
nc = 4;
separator = ' ';
}
/* There can only be a 4th response code digit stored in 'digit4' if
all the other fields were parsed and stored first, so nc is 5 when
digit4 a digit.
The sscanf() line above will also allow zero-prefixed and negative
numbers, so we check for that too here.
*/
else if(ISDIGIT(digit4) || (k->httpcode < 100)) {
failf(data, "Unsupported response code in HTTP response");
return CURLE_UNSUPPORTED_PROTOCOL;
}
if((nc >= 4) && (' ' == separator)) {
httpversion += 10 * httpversion_major;
switch(httpversion) {
case 10:
case 11:
#if defined(USE_NGHTTP2) || defined(USE_HYPER)
case 20:
#endif
#if defined(ENABLE_QUIC)
case 30:
#endif
conn->httpversion = (unsigned char)httpversion;
break;
default:
failf(data, "Unsupported HTTP version (%u.%d) in response",
httpversion/10, httpversion%10);
return CURLE_UNSUPPORTED_PROTOCOL;
}
if(k->upgr101 == UPGR101_RECEIVED) {
/* supposedly upgraded to http2 now */
if(conn->httpversion != 20)
infof(data, "Lying server, not serving HTTP/2");
}
if(conn->httpversion < 20) {
conn->bundle->multiuse = BUNDLE_NO_MULTIUSE;
infof(data, "Mark bundle as not supporting multiuse");
}
}
else if(!nc) {
/* this is the real world, not a Nirvana
NCSA 1.5.x returns this crap when asked for HTTP/1.1
*/
nc = sscanf(HEADER1, " HTTP %3d", &k->httpcode);
conn->httpversion = 10;
/* If user has set option HTTP200ALIASES,
compare header line against list of aliases
*/
if(!nc) {
statusline check =
checkhttpprefix(data,
Curl_dyn_ptr(&data->state.headerb),
Curl_dyn_len(&data->state.headerb));
if(check == STATUS_DONE) {
nc = 1;
k->httpcode = 200;
conn->httpversion = 10;
}
}
}
else {
failf(data, "Unsupported HTTP version in response");
return CURLE_UNSUPPORTED_PROTOCOL;
}
}
else if(conn->handler->protocol & CURLPROTO_RTSP) {
char separator;
int rtspversion;
nc = sscanf(HEADER1,
" RTSP/%1d.%1d%c%3d",
&rtspversion_major,
&rtspversion,
&separator,
&k->httpcode);
if((nc == 4) && (' ' == separator)) {
conn->httpversion = 11; /* For us, RTSP acts like HTTP 1.1 */
}
else {
nc = 0;
}
}
if(nc) {
result = Curl_http_statusline(data, conn);
if(result)
return result;
}
else {
k->header = FALSE; /* this is not a header line */
break;
}
}
result = Curl_convert_from_network(data, headp, strlen(headp));
/* Curl_convert_from_network calls failf if unsuccessful */
if(result)
return result;
result = Curl_http_header(data, conn, headp);
if(result)
return result;
/*
* End of header-checks. Write them to the client.
*/
writetype = CLIENTWRITE_HEADER;
if(data->set.include_header)
writetype |= CLIENTWRITE_BODY;
Curl_debug(data, CURLINFO_HEADER_IN, headp,
Curl_dyn_len(&data->state.headerb));
result = Curl_client_write(data, writetype, headp,
Curl_dyn_len(&data->state.headerb));
if(result)
return result;
data->info.header_size += Curl_dyn_len(&data->state.headerb);
data->req.headerbytecount += Curl_dyn_len(&data->state.headerb);
Curl_dyn_reset(&data->state.headerb);
}
while(*k->str); /* header line within buffer */
/* We might have reached the end of the header part here, but
there might be a non-header part left in the end of the read
buffer. */
return CURLE_OK;
}
#endif /* CURL_DISABLE_HTTP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http2.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_NGHTTP2
#include <nghttp2/nghttp2.h>
#include "urldata.h"
#include "http2.h"
#include "http.h"
#include "sendf.h"
#include "select.h"
#include "curl_base64.h"
#include "strcase.h"
#include "multiif.h"
#include "url.h"
#include "connect.h"
#include "strtoofft.h"
#include "strdup.h"
#include "dynbuf.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define H2_BUFSIZE 32768
#if (NGHTTP2_VERSION_NUM < 0x010c00)
#error too old nghttp2 version, upgrade!
#endif
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define nghttp2_session_callbacks_set_error_callback(x,y)
#endif
#if (NGHTTP2_VERSION_NUM >= 0x010c00)
#define NGHTTP2_HAS_SET_LOCAL_WINDOW_SIZE 1
#endif
#define HTTP2_HUGE_WINDOW_SIZE (32 * 1024 * 1024) /* 32 MB */
#ifdef DEBUG_HTTP2
#define H2BUGF(x) x
#else
#define H2BUGF(x) do { } while(0)
#endif
static ssize_t http2_recv(struct Curl_easy *data, int sockindex,
char *mem, size_t len, CURLcode *err);
static bool http2_connisdead(struct Curl_easy *data,
struct connectdata *conn);
static int h2_session_send(struct Curl_easy *data,
nghttp2_session *h2);
static int h2_process_pending_input(struct Curl_easy *data,
struct http_conn *httpc,
CURLcode *err);
/*
* Curl_http2_init_state() is called when the easy handle is created and
* allows for HTTP/2 specific init of state.
*/
void Curl_http2_init_state(struct UrlState *state)
{
state->stream_weight = NGHTTP2_DEFAULT_WEIGHT;
}
/*
* Curl_http2_init_userset() is called when the easy handle is created and
* allows for HTTP/2 specific user-set fields.
*/
void Curl_http2_init_userset(struct UserDefined *set)
{
set->stream_weight = NGHTTP2_DEFAULT_WEIGHT;
}
static int http2_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *sock)
{
const struct http_conn *c = &conn->proto.httpc;
struct SingleRequest *k = &data->req;
int bitmap = GETSOCK_BLANK;
struct HTTP *stream = data->req.p.http;
sock[0] = conn->sock[FIRSTSOCKET];
if(!(k->keepon & KEEP_RECV_PAUSE))
/* Unless paused - in a HTTP/2 connection we can basically always get a
frame so we should always be ready for one */
bitmap |= GETSOCK_READSOCK(FIRSTSOCKET);
/* we're (still uploading OR the HTTP/2 layer wants to send data) AND
there's a window to send data in */
if((((k->keepon & (KEEP_SEND|KEEP_SEND_PAUSE)) == KEEP_SEND) ||
nghttp2_session_want_write(c->h2)) &&
(nghttp2_session_get_remote_window_size(c->h2) &&
nghttp2_session_get_stream_remote_window_size(c->h2,
stream->stream_id)))
bitmap |= GETSOCK_WRITESOCK(FIRSTSOCKET);
return bitmap;
}
/*
* http2_stream_free() free HTTP2 stream related data
*/
static void http2_stream_free(struct HTTP *http)
{
if(http) {
Curl_dyn_free(&http->header_recvbuf);
for(; http->push_headers_used > 0; --http->push_headers_used) {
free(http->push_headers[http->push_headers_used - 1]);
}
free(http->push_headers);
http->push_headers = NULL;
}
}
/*
* Disconnects *a* connection used for HTTP/2. It might be an old one from the
* connection cache and not the "main" one. Don't touch the easy handle!
*/
static CURLcode http2_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection)
{
struct http_conn *c = &conn->proto.httpc;
(void)dead_connection;
#ifndef DEBUG_HTTP2
(void)data;
#endif
H2BUGF(infof(data, "HTTP/2 DISCONNECT starts now"));
nghttp2_session_del(c->h2);
Curl_safefree(c->inbuf);
H2BUGF(infof(data, "HTTP/2 DISCONNECT done"));
return CURLE_OK;
}
/*
* The server may send us data at any point (e.g. PING frames). Therefore,
* we cannot assume that an HTTP/2 socket is dead just because it is readable.
*
* Instead, if it is readable, run Curl_connalive() to peek at the socket
* and distinguish between closed and data.
*/
static bool http2_connisdead(struct Curl_easy *data, struct connectdata *conn)
{
int sval;
bool dead = TRUE;
if(conn->bits.close)
return TRUE;
sval = SOCKET_READABLE(conn->sock[FIRSTSOCKET], 0);
if(sval == 0) {
/* timeout */
dead = FALSE;
}
else if(sval & CURL_CSELECT_ERR) {
/* socket is in an error state */
dead = TRUE;
}
else if(sval & CURL_CSELECT_IN) {
/* readable with no error. could still be closed */
dead = !Curl_connalive(conn);
if(!dead) {
/* This happens before we've sent off a request and the connection is
not in use by any other transfer, there shouldn't be any data here,
only "protocol frames" */
CURLcode result;
struct http_conn *httpc = &conn->proto.httpc;
ssize_t nread = -1;
if(httpc->recv_underlying)
/* if called "too early", this pointer isn't setup yet! */
nread = ((Curl_recv *)httpc->recv_underlying)(
data, FIRSTSOCKET, httpc->inbuf, H2_BUFSIZE, &result);
if(nread != -1) {
infof(data,
"%d bytes stray data read before trying h2 connection",
(int)nread);
httpc->nread_inbuf = 0;
httpc->inbuflen = nread;
if(h2_process_pending_input(data, httpc, &result) < 0)
/* immediate error, considered dead */
dead = TRUE;
}
else
/* the read failed so let's say this is dead anyway */
dead = TRUE;
}
}
return dead;
}
/*
* Set the transfer that is currently using this HTTP/2 connection.
*/
static void set_transfer(struct http_conn *c,
struct Curl_easy *data)
{
c->trnsfr = data;
}
/*
* Get the transfer that is currently using this HTTP/2 connection.
*/
static struct Curl_easy *get_transfer(struct http_conn *c)
{
DEBUGASSERT(c && c->trnsfr);
return c->trnsfr;
}
static unsigned int http2_conncheck(struct Curl_easy *data,
struct connectdata *conn,
unsigned int checks_to_perform)
{
unsigned int ret_val = CONNRESULT_NONE;
struct http_conn *c = &conn->proto.httpc;
int rc;
bool send_frames = false;
if(checks_to_perform & CONNCHECK_ISDEAD) {
if(http2_connisdead(data, conn))
ret_val |= CONNRESULT_DEAD;
}
if(checks_to_perform & CONNCHECK_KEEPALIVE) {
struct curltime now = Curl_now();
timediff_t elapsed = Curl_timediff(now, conn->keepalive);
if(elapsed > data->set.upkeep_interval_ms) {
/* Perform an HTTP/2 PING */
rc = nghttp2_submit_ping(c->h2, 0, ZERO_NULL);
if(!rc) {
/* Successfully added a PING frame to the session. Need to flag this
so the frame is sent. */
send_frames = true;
}
else {
failf(data, "nghttp2_submit_ping() failed: %s(%d)",
nghttp2_strerror(rc), rc);
}
conn->keepalive = now;
}
}
if(send_frames) {
set_transfer(c, data); /* set the transfer */
rc = nghttp2_session_send(c->h2);
if(rc)
failf(data, "nghttp2_session_send() failed: %s(%d)",
nghttp2_strerror(rc), rc);
}
return ret_val;
}
/* called from http_setup_conn */
void Curl_http2_setup_req(struct Curl_easy *data)
{
struct HTTP *http = data->req.p.http;
http->bodystarted = FALSE;
http->status_code = -1;
http->pausedata = NULL;
http->pauselen = 0;
http->closed = FALSE;
http->close_handled = FALSE;
http->mem = NULL;
http->len = 0;
http->memlen = 0;
http->error = NGHTTP2_NO_ERROR;
}
/* called from http_setup_conn */
void Curl_http2_setup_conn(struct connectdata *conn)
{
conn->proto.httpc.settings.max_concurrent_streams =
DEFAULT_MAX_CONCURRENT_STREAMS;
}
/*
* HTTP2 handler interface. This isn't added to the general list of protocols
* but will be used at run-time when the protocol is dynamically switched from
* HTTP to HTTP2.
*/
static const struct Curl_handler Curl_handler_http2 = {
"HTTP", /* scheme */
ZERO_NULL, /* setup_connection */
Curl_http, /* do_it */
Curl_http_done, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
http2_getsock, /* proto_getsock */
http2_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
http2_getsock, /* perform_getsock */
http2_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
http2_conncheck, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_HTTP, /* defport */
CURLPROTO_HTTP, /* protocol */
CURLPROTO_HTTP, /* family */
PROTOPT_STREAM /* flags */
};
static const struct Curl_handler Curl_handler_http2_ssl = {
"HTTPS", /* scheme */
ZERO_NULL, /* setup_connection */
Curl_http, /* do_it */
Curl_http_done, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
http2_getsock, /* proto_getsock */
http2_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
http2_getsock, /* perform_getsock */
http2_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
http2_conncheck, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_HTTP, /* defport */
CURLPROTO_HTTPS, /* protocol */
CURLPROTO_HTTP, /* family */
PROTOPT_SSL | PROTOPT_STREAM /* flags */
};
/*
* Store nghttp2 version info in this buffer.
*/
void Curl_http2_ver(char *p, size_t len)
{
nghttp2_info *h2 = nghttp2_version(0);
(void)msnprintf(p, len, "nghttp2/%s", h2->version_str);
}
/*
* The implementation of nghttp2_send_callback type. Here we write |data| with
* size |length| to the network and return the number of bytes actually
* written. See the documentation of nghttp2_send_callback for the details.
*/
static ssize_t send_callback(nghttp2_session *h2,
const uint8_t *mem, size_t length, int flags,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *c = &conn->proto.httpc;
struct Curl_easy *data = get_transfer(c);
ssize_t written;
CURLcode result = CURLE_OK;
(void)h2;
(void)flags;
if(!c->send_underlying)
/* called before setup properly! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
written = ((Curl_send*)c->send_underlying)(data, FIRSTSOCKET,
mem, length, &result);
if(result == CURLE_AGAIN) {
return NGHTTP2_ERR_WOULDBLOCK;
}
if(written == -1) {
failf(data, "Failed sending HTTP2 data");
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
if(!written)
return NGHTTP2_ERR_WOULDBLOCK;
return written;
}
/* We pass a pointer to this struct in the push callback, but the contents of
the struct are hidden from the user. */
struct curl_pushheaders {
struct Curl_easy *data;
const nghttp2_push_promise *frame;
};
/*
* push header access function. Only to be used from within the push callback
*/
char *curl_pushheader_bynum(struct curl_pushheaders *h, size_t num)
{
/* Verify that we got a good easy handle in the push header struct, mostly to
detect rubbish input fast(er). */
if(!h || !GOOD_EASY_HANDLE(h->data))
return NULL;
else {
struct HTTP *stream = h->data->req.p.http;
if(num < stream->push_headers_used)
return stream->push_headers[num];
}
return NULL;
}
/*
* push header access function. Only to be used from within the push callback
*/
char *curl_pushheader_byname(struct curl_pushheaders *h, const char *header)
{
/* Verify that we got a good easy handle in the push header struct,
mostly to detect rubbish input fast(er). Also empty header name
is just a rubbish too. We have to allow ":" at the beginning of
the header, but header == ":" must be rejected. If we have ':' in
the middle of header, it could be matched in middle of the value,
this is because we do prefix match.*/
if(!h || !GOOD_EASY_HANDLE(h->data) || !header || !header[0] ||
!strcmp(header, ":") || strchr(header + 1, ':'))
return NULL;
else {
struct HTTP *stream = h->data->req.p.http;
size_t len = strlen(header);
size_t i;
for(i = 0; i<stream->push_headers_used; i++) {
if(!strncmp(header, stream->push_headers[i], len)) {
/* sub-match, make sure that it is followed by a colon */
if(stream->push_headers[i][len] != ':')
continue;
return &stream->push_headers[i][len + 1];
}
}
}
return NULL;
}
/*
* This specific transfer on this connection has been "drained".
*/
static void drained_transfer(struct Curl_easy *data,
struct http_conn *httpc)
{
DEBUGASSERT(httpc->drain_total >= data->state.drain);
httpc->drain_total -= data->state.drain;
data->state.drain = 0;
}
/*
* Mark this transfer to get "drained".
*/
static void drain_this(struct Curl_easy *data,
struct http_conn *httpc)
{
data->state.drain++;
httpc->drain_total++;
DEBUGASSERT(httpc->drain_total >= data->state.drain);
}
static struct Curl_easy *duphandle(struct Curl_easy *data)
{
struct Curl_easy *second = curl_easy_duphandle(data);
if(second) {
/* setup the request struct */
struct HTTP *http = calloc(1, sizeof(struct HTTP));
if(!http) {
(void)Curl_close(&second);
}
else {
second->req.p.http = http;
Curl_dyn_init(&http->header_recvbuf, DYN_H2_HEADERS);
Curl_http2_setup_req(second);
second->state.stream_weight = data->state.stream_weight;
}
}
return second;
}
static int set_transfer_url(struct Curl_easy *data,
struct curl_pushheaders *hp)
{
const char *v;
CURLU *u = curl_url();
CURLUcode uc;
char *url = NULL;
int rc = 0;
v = curl_pushheader_byname(hp, ":scheme");
if(v) {
uc = curl_url_set(u, CURLUPART_SCHEME, v, 0);
if(uc) {
rc = 1;
goto fail;
}
}
v = curl_pushheader_byname(hp, ":authority");
if(v) {
uc = curl_url_set(u, CURLUPART_HOST, v, 0);
if(uc) {
rc = 2;
goto fail;
}
}
v = curl_pushheader_byname(hp, ":path");
if(v) {
uc = curl_url_set(u, CURLUPART_PATH, v, 0);
if(uc) {
rc = 3;
goto fail;
}
}
uc = curl_url_get(u, CURLUPART_URL, &url, 0);
if(uc)
rc = 4;
fail:
curl_url_cleanup(u);
if(rc)
return rc;
if(data->state.url_alloc)
free(data->state.url);
data->state.url_alloc = TRUE;
data->state.url = url;
return 0;
}
static int push_promise(struct Curl_easy *data,
struct connectdata *conn,
const nghttp2_push_promise *frame)
{
int rv; /* one of the CURL_PUSH_* defines */
H2BUGF(infof(data, "PUSH_PROMISE received, stream %u!",
frame->promised_stream_id));
if(data->multi->push_cb) {
struct HTTP *stream;
struct HTTP *newstream;
struct curl_pushheaders heads;
CURLMcode rc;
struct http_conn *httpc;
size_t i;
/* clone the parent */
struct Curl_easy *newhandle = duphandle(data);
if(!newhandle) {
infof(data, "failed to duplicate handle");
rv = CURL_PUSH_DENY; /* FAIL HARD */
goto fail;
}
heads.data = data;
heads.frame = frame;
/* ask the application */
H2BUGF(infof(data, "Got PUSH_PROMISE, ask application!"));
stream = data->req.p.http;
if(!stream) {
failf(data, "Internal NULL stream!");
(void)Curl_close(&newhandle);
rv = CURL_PUSH_DENY;
goto fail;
}
rv = set_transfer_url(newhandle, &heads);
if(rv) {
(void)Curl_close(&newhandle);
rv = CURL_PUSH_DENY;
goto fail;
}
Curl_set_in_callback(data, true);
rv = data->multi->push_cb(data, newhandle,
stream->push_headers_used, &heads,
data->multi->push_userp);
Curl_set_in_callback(data, false);
/* free the headers again */
for(i = 0; i<stream->push_headers_used; i++)
free(stream->push_headers[i]);
free(stream->push_headers);
stream->push_headers = NULL;
stream->push_headers_used = 0;
if(rv) {
DEBUGASSERT((rv > CURL_PUSH_OK) && (rv <= CURL_PUSH_ERROROUT));
/* denied, kill off the new handle again */
http2_stream_free(newhandle->req.p.http);
newhandle->req.p.http = NULL;
(void)Curl_close(&newhandle);
goto fail;
}
newstream = newhandle->req.p.http;
newstream->stream_id = frame->promised_stream_id;
newhandle->req.maxdownload = -1;
newhandle->req.size = -1;
/* approved, add to the multi handle and immediately switch to PERFORM
state with the given connection !*/
rc = Curl_multi_add_perform(data->multi, newhandle, conn);
if(rc) {
infof(data, "failed to add handle to multi");
http2_stream_free(newhandle->req.p.http);
newhandle->req.p.http = NULL;
Curl_close(&newhandle);
rv = CURL_PUSH_DENY;
goto fail;
}
httpc = &conn->proto.httpc;
rv = nghttp2_session_set_stream_user_data(httpc->h2,
frame->promised_stream_id,
newhandle);
if(rv) {
infof(data, "failed to set user_data for stream %d",
frame->promised_stream_id);
DEBUGASSERT(0);
rv = CURL_PUSH_DENY;
goto fail;
}
Curl_dyn_init(&newstream->header_recvbuf, DYN_H2_HEADERS);
Curl_dyn_init(&newstream->trailer_recvbuf, DYN_H2_TRAILERS);
}
else {
H2BUGF(infof(data, "Got PUSH_PROMISE, ignore it!"));
rv = CURL_PUSH_DENY;
}
fail:
return rv;
}
/*
* multi_connchanged() is called to tell that there is a connection in
* this multi handle that has changed state (multiplexing become possible, the
* number of allowed streams changed or similar), and a subsequent use of this
* multi handle should move CONNECT_PEND handles back to CONNECT to have them
* retry.
*/
static void multi_connchanged(struct Curl_multi *multi)
{
multi->recheckstate = TRUE;
}
static int on_frame_recv(nghttp2_session *session, const nghttp2_frame *frame,
void *userp)
{
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *httpc = &conn->proto.httpc;
struct Curl_easy *data_s = NULL;
struct HTTP *stream = NULL;
struct Curl_easy *data = get_transfer(httpc);
int rv;
size_t left, ncopy;
int32_t stream_id = frame->hd.stream_id;
CURLcode result;
if(!stream_id) {
/* stream ID zero is for connection-oriented stuff */
if(frame->hd.type == NGHTTP2_SETTINGS) {
uint32_t max_conn = httpc->settings.max_concurrent_streams;
H2BUGF(infof(data, "Got SETTINGS"));
httpc->settings.max_concurrent_streams =
nghttp2_session_get_remote_settings(
session, NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS);
httpc->settings.enable_push =
nghttp2_session_get_remote_settings(
session, NGHTTP2_SETTINGS_ENABLE_PUSH);
H2BUGF(infof(data, "MAX_CONCURRENT_STREAMS == %d",
httpc->settings.max_concurrent_streams));
H2BUGF(infof(data, "ENABLE_PUSH == %s",
httpc->settings.enable_push?"TRUE":"false"));
if(max_conn != httpc->settings.max_concurrent_streams) {
/* only signal change if the value actually changed */
infof(data,
"Connection state changed (MAX_CONCURRENT_STREAMS == %u)!",
httpc->settings.max_concurrent_streams);
multi_connchanged(data->multi);
}
}
return 0;
}
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s) {
H2BUGF(infof(data,
"No Curl_easy associated with stream: %x",
stream_id));
return 0;
}
stream = data_s->req.p.http;
if(!stream) {
H2BUGF(infof(data_s, "No proto pointer for stream: %x",
stream_id));
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
H2BUGF(infof(data_s, "on_frame_recv() header %x stream %x",
frame->hd.type, stream_id));
switch(frame->hd.type) {
case NGHTTP2_DATA:
/* If body started on this stream, then receiving DATA is illegal. */
if(!stream->bodystarted) {
rv = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
stream_id, NGHTTP2_PROTOCOL_ERROR);
if(nghttp2_is_fatal(rv)) {
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
}
break;
case NGHTTP2_HEADERS:
if(stream->bodystarted) {
/* Only valid HEADERS after body started is trailer HEADERS. We
buffer them in on_header callback. */
break;
}
/* nghttp2 guarantees that :status is received, and we store it to
stream->status_code. Fuzzing has proven this can still be reached
without status code having been set. */
if(stream->status_code == -1)
return NGHTTP2_ERR_CALLBACK_FAILURE;
/* Only final status code signals the end of header */
if(stream->status_code / 100 != 1) {
stream->bodystarted = TRUE;
stream->status_code = -1;
}
result = Curl_dyn_add(&stream->header_recvbuf, "\r\n");
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
left = Curl_dyn_len(&stream->header_recvbuf) -
stream->nread_header_recvbuf;
ncopy = CURLMIN(stream->len, left);
memcpy(&stream->mem[stream->memlen],
Curl_dyn_ptr(&stream->header_recvbuf) +
stream->nread_header_recvbuf,
ncopy);
stream->nread_header_recvbuf += ncopy;
DEBUGASSERT(stream->mem);
H2BUGF(infof(data_s, "Store %zu bytes headers from stream %u at %p",
ncopy, stream_id, stream->mem));
stream->len -= ncopy;
stream->memlen += ncopy;
drain_this(data_s, httpc);
/* if we receive data for another handle, wake that up */
if(get_transfer(httpc) != data_s)
Curl_expire(data_s, 0, EXPIRE_RUN_NOW);
break;
case NGHTTP2_PUSH_PROMISE:
rv = push_promise(data_s, conn, &frame->push_promise);
if(rv) { /* deny! */
int h2;
DEBUGASSERT((rv > CURL_PUSH_OK) && (rv <= CURL_PUSH_ERROROUT));
h2 = nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
frame->push_promise.promised_stream_id,
NGHTTP2_CANCEL);
if(nghttp2_is_fatal(h2))
return NGHTTP2_ERR_CALLBACK_FAILURE;
else if(rv == CURL_PUSH_ERROROUT) {
DEBUGF(infof(data_s, "Fail the parent stream (too)"));
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
}
break;
default:
H2BUGF(infof(data_s, "Got frame type %x for stream %u!",
frame->hd.type, stream_id));
break;
}
return 0;
}
static int on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
int32_t stream_id,
const uint8_t *mem, size_t len, void *userp)
{
struct HTTP *stream;
struct Curl_easy *data_s;
size_t nread;
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *httpc = &conn->proto.httpc;
(void)session;
(void)flags;
DEBUGASSERT(stream_id); /* should never be a zero stream ID here */
/* get the stream from the hash based on Stream ID */
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s)
/* Receiving a Stream ID not in the hash should not happen, this is an
internal error more than anything else! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
stream = data_s->req.p.http;
if(!stream)
return NGHTTP2_ERR_CALLBACK_FAILURE;
nread = CURLMIN(stream->len, len);
memcpy(&stream->mem[stream->memlen], mem, nread);
stream->len -= nread;
stream->memlen += nread;
drain_this(data_s, &conn->proto.httpc);
/* if we receive data for another handle, wake that up */
if(get_transfer(httpc) != data_s)
Curl_expire(data_s, 0, EXPIRE_RUN_NOW);
H2BUGF(infof(data_s, "%zu data received for stream %u "
"(%zu left in buffer %p, total %zu)",
nread, stream_id,
stream->len, stream->mem,
stream->memlen));
if(nread < len) {
stream->pausedata = mem + nread;
stream->pauselen = len - nread;
H2BUGF(infof(data_s, "NGHTTP2_ERR_PAUSE - %zu bytes out of buffer"
", stream %u",
len - nread, stream_id));
data_s->conn->proto.httpc.pause_stream_id = stream_id;
return NGHTTP2_ERR_PAUSE;
}
/* pause execution of nghttp2 if we received data for another handle
in order to process them first. */
if(get_transfer(httpc) != data_s) {
data_s->conn->proto.httpc.pause_stream_id = stream_id;
return NGHTTP2_ERR_PAUSE;
}
return 0;
}
static int on_stream_close(nghttp2_session *session, int32_t stream_id,
uint32_t error_code, void *userp)
{
struct Curl_easy *data_s;
struct HTTP *stream;
struct connectdata *conn = (struct connectdata *)userp;
int rv;
(void)session;
(void)stream_id;
if(stream_id) {
struct http_conn *httpc;
/* get the stream from the hash based on Stream ID, stream ID zero is for
connection-oriented stuff */
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s) {
/* We could get stream ID not in the hash. For example, if we
decided to reject stream (e.g., PUSH_PROMISE). */
return 0;
}
H2BUGF(infof(data_s, "on_stream_close(), %s (err %d), stream %u",
nghttp2_http2_strerror(error_code), error_code, stream_id));
stream = data_s->req.p.http;
if(!stream)
return NGHTTP2_ERR_CALLBACK_FAILURE;
stream->closed = TRUE;
httpc = &conn->proto.httpc;
drain_this(data_s, httpc);
Curl_expire(data_s, 0, EXPIRE_RUN_NOW);
stream->error = error_code;
/* remove the entry from the hash as the stream is now gone */
rv = nghttp2_session_set_stream_user_data(session, stream_id, 0);
if(rv) {
infof(data_s, "http/2: failed to clear user_data for stream %d!",
stream_id);
DEBUGASSERT(0);
}
if(stream_id == httpc->pause_stream_id) {
H2BUGF(infof(data_s, "Stopped the pause stream!"));
httpc->pause_stream_id = 0;
}
H2BUGF(infof(data_s, "Removed stream %u hash!", stream_id));
stream->stream_id = 0; /* cleared */
}
return 0;
}
static int on_begin_headers(nghttp2_session *session,
const nghttp2_frame *frame, void *userp)
{
struct HTTP *stream;
struct Curl_easy *data_s = NULL;
(void)userp;
data_s = nghttp2_session_get_stream_user_data(session, frame->hd.stream_id);
if(!data_s) {
return 0;
}
H2BUGF(infof(data_s, "on_begin_headers() was called"));
if(frame->hd.type != NGHTTP2_HEADERS) {
return 0;
}
stream = data_s->req.p.http;
if(!stream || !stream->bodystarted) {
return 0;
}
return 0;
}
/* Decode HTTP status code. Returns -1 if no valid status code was
decoded. */
static int decode_status_code(const uint8_t *value, size_t len)
{
int i;
int res;
if(len != 3) {
return -1;
}
res = 0;
for(i = 0; i < 3; ++i) {
char c = value[i];
if(c < '0' || c > '9') {
return -1;
}
res *= 10;
res += c - '0';
}
return res;
}
/* frame->hd.type is either NGHTTP2_HEADERS or NGHTTP2_PUSH_PROMISE */
static int on_header(nghttp2_session *session, const nghttp2_frame *frame,
const uint8_t *name, size_t namelen,
const uint8_t *value, size_t valuelen,
uint8_t flags,
void *userp)
{
struct HTTP *stream;
struct Curl_easy *data_s;
int32_t stream_id = frame->hd.stream_id;
struct connectdata *conn = (struct connectdata *)userp;
struct http_conn *httpc = &conn->proto.httpc;
CURLcode result;
(void)flags;
DEBUGASSERT(stream_id); /* should never be a zero stream ID here */
/* get the stream from the hash based on Stream ID */
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s)
/* Receiving a Stream ID not in the hash should not happen, this is an
internal error more than anything else! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
stream = data_s->req.p.http;
if(!stream) {
failf(data_s, "Internal NULL stream!");
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
/* Store received PUSH_PROMISE headers to be used when the subsequent
PUSH_PROMISE callback comes */
if(frame->hd.type == NGHTTP2_PUSH_PROMISE) {
char *h;
if(!strcmp(":authority", (const char *)name)) {
/* pseudo headers are lower case */
int rc = 0;
char *check = aprintf("%s:%d", conn->host.name, conn->remote_port);
if(!check)
/* no memory */
return NGHTTP2_ERR_CALLBACK_FAILURE;
if(!Curl_strcasecompare(check, (const char *)value) &&
((conn->remote_port != conn->given->defport) ||
!Curl_strcasecompare(conn->host.name, (const char *)value))) {
/* This is push is not for the same authority that was asked for in
* the URL. RFC 7540 section 8.2 says: "A client MUST treat a
* PUSH_PROMISE for which the server is not authoritative as a stream
* error of type PROTOCOL_ERROR."
*/
(void)nghttp2_submit_rst_stream(session, NGHTTP2_FLAG_NONE,
stream_id, NGHTTP2_PROTOCOL_ERROR);
rc = NGHTTP2_ERR_CALLBACK_FAILURE;
}
free(check);
if(rc)
return rc;
}
if(!stream->push_headers) {
stream->push_headers_alloc = 10;
stream->push_headers = malloc(stream->push_headers_alloc *
sizeof(char *));
if(!stream->push_headers)
return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
stream->push_headers_used = 0;
}
else if(stream->push_headers_used ==
stream->push_headers_alloc) {
char **headp;
stream->push_headers_alloc *= 2;
headp = Curl_saferealloc(stream->push_headers,
stream->push_headers_alloc * sizeof(char *));
if(!headp) {
stream->push_headers = NULL;
return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
}
stream->push_headers = headp;
}
h = aprintf("%s:%s", name, value);
if(h)
stream->push_headers[stream->push_headers_used++] = h;
return 0;
}
if(stream->bodystarted) {
/* This is a trailer */
H2BUGF(infof(data_s, "h2 trailer: %.*s: %.*s", namelen, name, valuelen,
value));
result = Curl_dyn_addf(&stream->trailer_recvbuf,
"%.*s: %.*s\r\n", namelen, name,
valuelen, value);
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
return 0;
}
if(namelen == sizeof(":status") - 1 &&
memcmp(":status", name, namelen) == 0) {
/* nghttp2 guarantees :status is received first and only once, and
value is 3 digits status code, and decode_status_code always
succeeds. */
stream->status_code = decode_status_code(value, valuelen);
DEBUGASSERT(stream->status_code != -1);
result = Curl_dyn_add(&stream->header_recvbuf, "HTTP/2 ");
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
result = Curl_dyn_addn(&stream->header_recvbuf, value, valuelen);
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
/* the space character after the status code is mandatory */
result = Curl_dyn_add(&stream->header_recvbuf, " \r\n");
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
/* if we receive data for another handle, wake that up */
if(get_transfer(httpc) != data_s)
Curl_expire(data_s, 0, EXPIRE_RUN_NOW);
H2BUGF(infof(data_s, "h2 status: HTTP/2 %03d (easy %p)",
stream->status_code, data_s));
return 0;
}
/* nghttp2 guarantees that namelen > 0, and :status was already
received, and this is not pseudo-header field . */
/* convert to a HTTP1-style header */
result = Curl_dyn_addn(&stream->header_recvbuf, name, namelen);
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
result = Curl_dyn_add(&stream->header_recvbuf, ": ");
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
result = Curl_dyn_addn(&stream->header_recvbuf, value, valuelen);
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
result = Curl_dyn_add(&stream->header_recvbuf, "\r\n");
if(result)
return NGHTTP2_ERR_CALLBACK_FAILURE;
/* if we receive data for another handle, wake that up */
if(get_transfer(httpc) != data_s)
Curl_expire(data_s, 0, EXPIRE_RUN_NOW);
H2BUGF(infof(data_s, "h2 header: %.*s: %.*s", namelen, name, valuelen,
value));
return 0; /* 0 is successful */
}
static ssize_t data_source_read_callback(nghttp2_session *session,
int32_t stream_id,
uint8_t *buf, size_t length,
uint32_t *data_flags,
nghttp2_data_source *source,
void *userp)
{
struct Curl_easy *data_s;
struct HTTP *stream = NULL;
size_t nread;
(void)source;
(void)userp;
if(stream_id) {
/* get the stream from the hash based on Stream ID, stream ID zero is for
connection-oriented stuff */
data_s = nghttp2_session_get_stream_user_data(session, stream_id);
if(!data_s)
/* Receiving a Stream ID not in the hash should not happen, this is an
internal error more than anything else! */
return NGHTTP2_ERR_CALLBACK_FAILURE;
stream = data_s->req.p.http;
if(!stream)
return NGHTTP2_ERR_CALLBACK_FAILURE;
}
else
return NGHTTP2_ERR_INVALID_ARGUMENT;
nread = CURLMIN(stream->upload_len, length);
if(nread > 0) {
memcpy(buf, stream->upload_mem, nread);
stream->upload_mem += nread;
stream->upload_len -= nread;
if(data_s->state.infilesize != -1)
stream->upload_left -= nread;
}
if(stream->upload_left == 0)
*data_flags = NGHTTP2_DATA_FLAG_EOF;
else if(nread == 0)
return NGHTTP2_ERR_DEFERRED;
H2BUGF(infof(data_s, "data_source_read_callback: "
"returns %zu bytes stream %u",
nread, stream_id));
return nread;
}
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
static int error_callback(nghttp2_session *session,
const char *msg,
size_t len,
void *userp)
{
(void)session;
(void)msg;
(void)len;
(void)userp;
return 0;
}
#endif
static void populate_settings(struct Curl_easy *data,
struct http_conn *httpc)
{
nghttp2_settings_entry *iv = httpc->local_settings;
iv[0].settings_id = NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS;
iv[0].value = Curl_multi_max_concurrent_streams(data->multi);
iv[1].settings_id = NGHTTP2_SETTINGS_INITIAL_WINDOW_SIZE;
iv[1].value = HTTP2_HUGE_WINDOW_SIZE;
iv[2].settings_id = NGHTTP2_SETTINGS_ENABLE_PUSH;
iv[2].value = data->multi->push_cb != NULL;
httpc->local_settings_num = 3;
}
void Curl_http2_done(struct Curl_easy *data, bool premature)
{
struct HTTP *http = data->req.p.http;
struct http_conn *httpc = &data->conn->proto.httpc;
/* there might be allocated resources done before this got the 'h2' pointer
setup */
Curl_dyn_free(&http->header_recvbuf);
Curl_dyn_free(&http->trailer_recvbuf);
if(http->push_headers) {
/* if they weren't used and then freed before */
for(; http->push_headers_used > 0; --http->push_headers_used) {
free(http->push_headers[http->push_headers_used - 1]);
}
free(http->push_headers);
http->push_headers = NULL;
}
if(!(data->conn->handler->protocol&PROTO_FAMILY_HTTP) ||
!httpc->h2) /* not HTTP/2 ? */
return;
if(premature) {
/* RST_STREAM */
set_transfer(httpc, data); /* set the transfer */
if(!nghttp2_submit_rst_stream(httpc->h2, NGHTTP2_FLAG_NONE,
http->stream_id, NGHTTP2_STREAM_CLOSED))
(void)nghttp2_session_send(httpc->h2);
if(http->stream_id == httpc->pause_stream_id) {
infof(data, "stopped the pause stream!");
httpc->pause_stream_id = 0;
}
}
if(data->state.drain)
drained_transfer(data, httpc);
/* -1 means unassigned and 0 means cleared */
if(http->stream_id > 0) {
int rv = nghttp2_session_set_stream_user_data(httpc->h2,
http->stream_id, 0);
if(rv) {
infof(data, "http/2: failed to clear user_data for stream %d!",
http->stream_id);
DEBUGASSERT(0);
}
set_transfer(httpc, NULL);
http->stream_id = 0;
}
}
/*
* Initialize nghttp2 for a Curl connection
*/
static CURLcode http2_init(struct Curl_easy *data, struct connectdata *conn)
{
if(!conn->proto.httpc.h2) {
int rc;
nghttp2_session_callbacks *callbacks;
conn->proto.httpc.inbuf = malloc(H2_BUFSIZE);
if(!conn->proto.httpc.inbuf)
return CURLE_OUT_OF_MEMORY;
rc = nghttp2_session_callbacks_new(&callbacks);
if(rc) {
failf(data, "Couldn't initialize nghttp2 callbacks!");
return CURLE_OUT_OF_MEMORY; /* most likely at least */
}
/* nghttp2_send_callback */
nghttp2_session_callbacks_set_send_callback(callbacks, send_callback);
/* nghttp2_on_frame_recv_callback */
nghttp2_session_callbacks_set_on_frame_recv_callback
(callbacks, on_frame_recv);
/* nghttp2_on_data_chunk_recv_callback */
nghttp2_session_callbacks_set_on_data_chunk_recv_callback
(callbacks, on_data_chunk_recv);
/* nghttp2_on_stream_close_callback */
nghttp2_session_callbacks_set_on_stream_close_callback
(callbacks, on_stream_close);
/* nghttp2_on_begin_headers_callback */
nghttp2_session_callbacks_set_on_begin_headers_callback
(callbacks, on_begin_headers);
/* nghttp2_on_header_callback */
nghttp2_session_callbacks_set_on_header_callback(callbacks, on_header);
nghttp2_session_callbacks_set_error_callback(callbacks, error_callback);
/* The nghttp2 session is not yet setup, do it */
rc = nghttp2_session_client_new(&conn->proto.httpc.h2, callbacks, conn);
nghttp2_session_callbacks_del(callbacks);
if(rc) {
failf(data, "Couldn't initialize nghttp2!");
return CURLE_OUT_OF_MEMORY; /* most likely at least */
}
}
return CURLE_OK;
}
/*
* Append headers to ask for a HTTP1.1 to HTTP2 upgrade.
*/
CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
struct Curl_easy *data)
{
CURLcode result;
ssize_t binlen;
char *base64;
size_t blen;
struct connectdata *conn = data->conn;
struct SingleRequest *k = &data->req;
uint8_t *binsettings = conn->proto.httpc.binsettings;
struct http_conn *httpc = &conn->proto.httpc;
populate_settings(data, httpc);
/* this returns number of bytes it wrote */
binlen = nghttp2_pack_settings_payload(binsettings, H2_BINSETTINGS_LEN,
httpc->local_settings,
httpc->local_settings_num);
if(binlen <= 0) {
failf(data, "nghttp2 unexpectedly failed on pack_settings_payload");
Curl_dyn_free(req);
return CURLE_FAILED_INIT;
}
conn->proto.httpc.binlen = binlen;
result = Curl_base64url_encode(data, (const char *)binsettings, binlen,
&base64, &blen);
if(result) {
Curl_dyn_free(req);
return result;
}
result = Curl_dyn_addf(req,
"Connection: Upgrade, HTTP2-Settings\r\n"
"Upgrade: %s\r\n"
"HTTP2-Settings: %s\r\n",
NGHTTP2_CLEARTEXT_PROTO_VERSION_ID, base64);
free(base64);
k->upgr101 = UPGR101_REQUESTED;
return result;
}
/*
* Returns nonzero if current HTTP/2 session should be closed.
*/
static int should_close_session(struct http_conn *httpc)
{
return httpc->drain_total == 0 && !nghttp2_session_want_read(httpc->h2) &&
!nghttp2_session_want_write(httpc->h2);
}
/*
* h2_process_pending_input() processes pending input left in
* httpc->inbuf. Then, call h2_session_send() to send pending data.
* This function returns 0 if it succeeds, or -1 and error code will
* be assigned to *err.
*/
static int h2_process_pending_input(struct Curl_easy *data,
struct http_conn *httpc,
CURLcode *err)
{
ssize_t nread;
char *inbuf;
ssize_t rv;
nread = httpc->inbuflen - httpc->nread_inbuf;
inbuf = httpc->inbuf + httpc->nread_inbuf;
set_transfer(httpc, data); /* set the transfer */
rv = nghttp2_session_mem_recv(httpc->h2, (const uint8_t *)inbuf, nread);
if(rv < 0) {
failf(data,
"h2_process_pending_input: nghttp2_session_mem_recv() returned "
"%zd:%s", rv, nghttp2_strerror((int)rv));
*err = CURLE_RECV_ERROR;
return -1;
}
if(nread == rv) {
H2BUGF(infof(data,
"h2_process_pending_input: All data in connection buffer "
"processed"));
httpc->inbuflen = 0;
httpc->nread_inbuf = 0;
}
else {
httpc->nread_inbuf += rv;
H2BUGF(infof(data,
"h2_process_pending_input: %zu bytes left in connection "
"buffer",
httpc->inbuflen - httpc->nread_inbuf));
}
rv = h2_session_send(data, httpc->h2);
if(rv) {
*err = CURLE_SEND_ERROR;
return -1;
}
if(nghttp2_session_check_request_allowed(httpc->h2) == 0) {
/* No more requests are allowed in the current session, so
the connection may not be reused. This is set when a
GOAWAY frame has been received or when the limit of stream
identifiers has been reached. */
connclose(data->conn, "http/2: No new requests allowed");
}
if(should_close_session(httpc)) {
struct HTTP *stream = data->req.p.http;
H2BUGF(infof(data,
"h2_process_pending_input: nothing to do in this session"));
if(stream->error)
*err = CURLE_HTTP2;
else {
/* not an error per se, but should still close the connection */
connclose(data->conn, "GOAWAY received");
*err = CURLE_OK;
}
return -1;
}
return 0;
}
/*
* Called from transfer.c:done_sending when we stop uploading.
*/
CURLcode Curl_http2_done_sending(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
if((conn->handler == &Curl_handler_http2_ssl) ||
(conn->handler == &Curl_handler_http2)) {
/* make sure this is only attempted for HTTP/2 transfers */
struct HTTP *stream = data->req.p.http;
struct http_conn *httpc = &conn->proto.httpc;
nghttp2_session *h2 = httpc->h2;
if(stream->upload_left) {
/* If the stream still thinks there's data left to upload. */
stream->upload_left = 0; /* DONE! */
/* resume sending here to trigger the callback to get called again so
that it can signal EOF to nghttp2 */
(void)nghttp2_session_resume_data(h2, stream->stream_id);
(void)h2_process_pending_input(data, httpc, &result);
}
/* If nghttp2 still has pending frames unsent */
if(nghttp2_session_want_write(h2)) {
struct SingleRequest *k = &data->req;
int rv;
H2BUGF(infof(data, "HTTP/2 still wants to send data (easy %p)", data));
/* and attempt to send the pending frames */
rv = h2_session_send(data, h2);
if(rv)
result = CURLE_SEND_ERROR;
if(nghttp2_session_want_write(h2)) {
/* re-set KEEP_SEND to make sure we are called again */
k->keepon |= KEEP_SEND;
}
}
}
return result;
}
static ssize_t http2_handle_stream_close(struct connectdata *conn,
struct Curl_easy *data,
struct HTTP *stream, CURLcode *err)
{
struct http_conn *httpc = &conn->proto.httpc;
if(httpc->pause_stream_id == stream->stream_id) {
httpc->pause_stream_id = 0;
}
drained_transfer(data, httpc);
if(httpc->pause_stream_id == 0) {
if(h2_process_pending_input(data, httpc, err) != 0) {
return -1;
}
}
DEBUGASSERT(data->state.drain == 0);
/* Reset to FALSE to prevent infinite loop in readwrite_data function. */
stream->closed = FALSE;
if(stream->error == NGHTTP2_REFUSED_STREAM) {
H2BUGF(infof(data, "REFUSED_STREAM (%d), try again on a new connection!",
stream->stream_id));
connclose(conn, "REFUSED_STREAM"); /* don't use this anymore */
data->state.refused_stream = TRUE;
*err = CURLE_RECV_ERROR; /* trigger Curl_retry_request() later */
return -1;
}
else if(stream->error != NGHTTP2_NO_ERROR) {
failf(data, "HTTP/2 stream %d was not closed cleanly: %s (err %u)",
stream->stream_id, nghttp2_http2_strerror(stream->error),
stream->error);
*err = CURLE_HTTP2_STREAM;
return -1;
}
if(!stream->bodystarted) {
failf(data, "HTTP/2 stream %d was closed cleanly, but before getting "
" all response header fields, treated as error",
stream->stream_id);
*err = CURLE_HTTP2_STREAM;
return -1;
}
if(Curl_dyn_len(&stream->trailer_recvbuf)) {
char *trailp = Curl_dyn_ptr(&stream->trailer_recvbuf);
char *lf;
do {
size_t len = 0;
CURLcode result;
/* each trailer line ends with a newline */
lf = strchr(trailp, '\n');
if(!lf)
break;
len = lf + 1 - trailp;
Curl_debug(data, CURLINFO_HEADER_IN, trailp, len);
/* pass the trailers one by one to the callback */
result = Curl_client_write(data, CLIENTWRITE_HEADER, trailp, len);
if(result) {
*err = result;
return -1;
}
trailp = ++lf;
} while(lf);
}
stream->close_handled = TRUE;
H2BUGF(infof(data, "http2_recv returns 0, http2_handle_stream_close"));
return 0;
}
/*
* h2_pri_spec() fills in the pri_spec struct, used by nghttp2 to send weight
* and dependency to the peer. It also stores the updated values in the state
* struct.
*/
static void h2_pri_spec(struct Curl_easy *data,
nghttp2_priority_spec *pri_spec)
{
struct HTTP *depstream = (data->set.stream_depends_on?
data->set.stream_depends_on->req.p.http:NULL);
int32_t depstream_id = depstream? depstream->stream_id:0;
nghttp2_priority_spec_init(pri_spec, depstream_id, data->set.stream_weight,
data->set.stream_depends_e);
data->state.stream_weight = data->set.stream_weight;
data->state.stream_depends_e = data->set.stream_depends_e;
data->state.stream_depends_on = data->set.stream_depends_on;
}
/*
* h2_session_send() checks if there's been an update in the priority /
* dependency settings and if so it submits a PRIORITY frame with the updated
* info.
*/
static int h2_session_send(struct Curl_easy *data,
nghttp2_session *h2)
{
struct HTTP *stream = data->req.p.http;
struct http_conn *httpc = &data->conn->proto.httpc;
set_transfer(httpc, data);
if((data->set.stream_weight != data->state.stream_weight) ||
(data->set.stream_depends_e != data->state.stream_depends_e) ||
(data->set.stream_depends_on != data->state.stream_depends_on) ) {
/* send new weight and/or dependency */
nghttp2_priority_spec pri_spec;
int rv;
h2_pri_spec(data, &pri_spec);
H2BUGF(infof(data, "Queuing PRIORITY on stream %u (easy %p)",
stream->stream_id, data));
DEBUGASSERT(stream->stream_id != -1);
rv = nghttp2_submit_priority(h2, NGHTTP2_FLAG_NONE, stream->stream_id,
&pri_spec);
if(rv)
return rv;
}
return nghttp2_session_send(h2);
}
static ssize_t http2_recv(struct Curl_easy *data, int sockindex,
char *mem, size_t len, CURLcode *err)
{
ssize_t nread;
struct connectdata *conn = data->conn;
struct http_conn *httpc = &conn->proto.httpc;
struct HTTP *stream = data->req.p.http;
(void)sockindex; /* we always do HTTP2 on sockindex 0 */
if(should_close_session(httpc)) {
H2BUGF(infof(data,
"http2_recv: nothing to do in this session"));
if(conn->bits.close) {
/* already marked for closure, return OK and we're done */
*err = CURLE_OK;
return 0;
}
*err = CURLE_HTTP2;
return -1;
}
/* Nullify here because we call nghttp2_session_send() and they
might refer to the old buffer. */
stream->upload_mem = NULL;
stream->upload_len = 0;
/*
* At this point 'stream' is just in the Curl_easy the connection
* identifies as its owner at this time.
*/
if(stream->bodystarted &&
stream->nread_header_recvbuf < Curl_dyn_len(&stream->header_recvbuf)) {
/* If there is header data pending for this stream to return, do that */
size_t left =
Curl_dyn_len(&stream->header_recvbuf) - stream->nread_header_recvbuf;
size_t ncopy = CURLMIN(len, left);
memcpy(mem, Curl_dyn_ptr(&stream->header_recvbuf) +
stream->nread_header_recvbuf, ncopy);
stream->nread_header_recvbuf += ncopy;
H2BUGF(infof(data, "http2_recv: Got %d bytes from header_recvbuf",
(int)ncopy));
return ncopy;
}
H2BUGF(infof(data, "http2_recv: easy %p (stream %u) win %u/%u",
data, stream->stream_id,
nghttp2_session_get_local_window_size(httpc->h2),
nghttp2_session_get_stream_local_window_size(httpc->h2,
stream->stream_id)
));
if((data->state.drain) && stream->memlen) {
H2BUGF(infof(data, "http2_recv: DRAIN %zu bytes stream %u!! (%p => %p)",
stream->memlen, stream->stream_id,
stream->mem, mem));
if(mem != stream->mem) {
/* if we didn't get the same buffer this time, we must move the data to
the beginning */
memmove(mem, stream->mem, stream->memlen);
stream->len = len - stream->memlen;
stream->mem = mem;
}
if(httpc->pause_stream_id == stream->stream_id && !stream->pausedata) {
/* We have paused nghttp2, but we have no pause data (see
on_data_chunk_recv). */
httpc->pause_stream_id = 0;
if(h2_process_pending_input(data, httpc, err) != 0) {
return -1;
}
}
}
else if(stream->pausedata) {
DEBUGASSERT(httpc->pause_stream_id == stream->stream_id);
nread = CURLMIN(len, stream->pauselen);
memcpy(mem, stream->pausedata, nread);
stream->pausedata += nread;
stream->pauselen -= nread;
if(stream->pauselen == 0) {
H2BUGF(infof(data, "Unpaused by stream %u", stream->stream_id));
DEBUGASSERT(httpc->pause_stream_id == stream->stream_id);
httpc->pause_stream_id = 0;
stream->pausedata = NULL;
stream->pauselen = 0;
/* When NGHTTP2_ERR_PAUSE is returned from
data_source_read_callback, we might not process DATA frame
fully. Calling nghttp2_session_mem_recv() again will
continue to process DATA frame, but if there is no incoming
frames, then we have to call it again with 0-length data.
Without this, on_stream_close callback will not be called,
and stream could be hanged. */
if(h2_process_pending_input(data, httpc, err) != 0) {
return -1;
}
}
H2BUGF(infof(data, "http2_recv: returns unpaused %zd bytes on stream %u",
nread, stream->stream_id));
return nread;
}
else if(httpc->pause_stream_id) {
/* If a stream paused nghttp2_session_mem_recv previously, and has
not processed all data, it still refers to the buffer in
nghttp2_session. If we call nghttp2_session_mem_recv(), we may
overwrite that buffer. To avoid that situation, just return
here with CURLE_AGAIN. This could be busy loop since data in
socket is not read. But it seems that usually streams are
notified with its drain property, and socket is read again
quickly. */
if(stream->closed)
/* closed overrides paused */
return 0;
H2BUGF(infof(data, "stream %x is paused, pause id: %x",
stream->stream_id, httpc->pause_stream_id));
*err = CURLE_AGAIN;
return -1;
}
else {
/* remember where to store incoming data for this stream and how big the
buffer is */
stream->mem = mem;
stream->len = len;
stream->memlen = 0;
if(httpc->inbuflen == 0) {
nread = ((Curl_recv *)httpc->recv_underlying)(
data, FIRSTSOCKET, httpc->inbuf, H2_BUFSIZE, err);
if(nread == -1) {
if(*err != CURLE_AGAIN)
failf(data, "Failed receiving HTTP2 data");
else if(stream->closed)
/* received when the stream was already closed! */
return http2_handle_stream_close(conn, data, stream, err);
return -1;
}
if(nread == 0) {
if(!stream->closed) {
/* This will happen when the server or proxy server is SIGKILLed
during data transfer. We should emit an error since our data
received may be incomplete. */
failf(data, "HTTP/2 stream %d was not closed cleanly before"
" end of the underlying stream",
stream->stream_id);
*err = CURLE_HTTP2_STREAM;
return -1;
}
H2BUGF(infof(data, "end of stream"));
*err = CURLE_OK;
return 0;
}
H2BUGF(infof(data, "nread=%zd", nread));
httpc->inbuflen = nread;
DEBUGASSERT(httpc->nread_inbuf == 0);
}
else {
nread = httpc->inbuflen - httpc->nread_inbuf;
(void)nread; /* silence warning, used in debug */
H2BUGF(infof(data, "Use data left in connection buffer, nread=%zd",
nread));
}
if(h2_process_pending_input(data, httpc, err))
return -1;
}
if(stream->memlen) {
ssize_t retlen = stream->memlen;
H2BUGF(infof(data, "http2_recv: returns %zd for stream %u",
retlen, stream->stream_id));
stream->memlen = 0;
if(httpc->pause_stream_id == stream->stream_id) {
/* data for this stream is returned now, but this stream caused a pause
already so we need it called again asap */
H2BUGF(infof(data, "Data returned for PAUSED stream %u",
stream->stream_id));
}
else if(!stream->closed) {
drained_transfer(data, httpc);
}
else
/* this stream is closed, trigger a another read ASAP to detect that */
Curl_expire(data, 0, EXPIRE_RUN_NOW);
return retlen;
}
if(stream->closed)
return http2_handle_stream_close(conn, data, stream, err);
*err = CURLE_AGAIN;
H2BUGF(infof(data, "http2_recv returns AGAIN for stream %u",
stream->stream_id));
return -1;
}
/* Index where :authority header field will appear in request header
field list. */
#define AUTHORITY_DST_IDX 3
/* USHRT_MAX is 65535 == 0xffff */
#define HEADER_OVERFLOW(x) \
(x.namelen > 0xffff || x.valuelen > 0xffff - x.namelen)
/*
* Check header memory for the token "trailers".
* Parse the tokens as separated by comma and surrounded by whitespace.
* Returns TRUE if found or FALSE if not.
*/
static bool contains_trailers(const char *p, size_t len)
{
const char *end = p + len;
for(;;) {
for(; p != end && (*p == ' ' || *p == '\t'); ++p)
;
if(p == end || (size_t)(end - p) < sizeof("trailers") - 1)
return FALSE;
if(strncasecompare("trailers", p, sizeof("trailers") - 1)) {
p += sizeof("trailers") - 1;
for(; p != end && (*p == ' ' || *p == '\t'); ++p)
;
if(p == end || *p == ',')
return TRUE;
}
/* skip to next token */
for(; p != end && *p != ','; ++p)
;
if(p == end)
return FALSE;
++p;
}
}
typedef enum {
/* Send header to server */
HEADERINST_FORWARD,
/* Don't send header to server */
HEADERINST_IGNORE,
/* Discard header, and replace it with "te: trailers" */
HEADERINST_TE_TRAILERS
} header_instruction;
/* Decides how to treat given header field. */
static header_instruction inspect_header(const char *name, size_t namelen,
const char *value, size_t valuelen) {
switch(namelen) {
case 2:
if(!strncasecompare("te", name, namelen))
return HEADERINST_FORWARD;
return contains_trailers(value, valuelen) ?
HEADERINST_TE_TRAILERS : HEADERINST_IGNORE;
case 7:
return strncasecompare("upgrade", name, namelen) ?
HEADERINST_IGNORE : HEADERINST_FORWARD;
case 10:
return (strncasecompare("connection", name, namelen) ||
strncasecompare("keep-alive", name, namelen)) ?
HEADERINST_IGNORE : HEADERINST_FORWARD;
case 16:
return strncasecompare("proxy-connection", name, namelen) ?
HEADERINST_IGNORE : HEADERINST_FORWARD;
case 17:
return strncasecompare("transfer-encoding", name, namelen) ?
HEADERINST_IGNORE : HEADERINST_FORWARD;
default:
return HEADERINST_FORWARD;
}
}
static ssize_t http2_send(struct Curl_easy *data, int sockindex,
const void *mem, size_t len, CURLcode *err)
{
/*
* Currently, we send request in this function, but this function is also
* used to send request body. It would be nice to add dedicated function for
* request.
*/
int rv;
struct connectdata *conn = data->conn;
struct http_conn *httpc = &conn->proto.httpc;
struct HTTP *stream = data->req.p.http;
nghttp2_nv *nva = NULL;
size_t nheader;
size_t i;
size_t authority_idx;
char *hdbuf = (char *)mem;
char *end, *line_end;
nghttp2_data_provider data_prd;
int32_t stream_id;
nghttp2_session *h2 = httpc->h2;
nghttp2_priority_spec pri_spec;
(void)sockindex;
H2BUGF(infof(data, "http2_send len=%zu", len));
if(stream->stream_id != -1) {
if(stream->close_handled) {
infof(data, "stream %d closed", stream->stream_id);
*err = CURLE_HTTP2_STREAM;
return -1;
}
else if(stream->closed) {
return http2_handle_stream_close(conn, data, stream, err);
}
/* If stream_id != -1, we have dispatched request HEADERS, and now
are going to send or sending request body in DATA frame */
stream->upload_mem = mem;
stream->upload_len = len;
rv = nghttp2_session_resume_data(h2, stream->stream_id);
if(nghttp2_is_fatal(rv)) {
*err = CURLE_SEND_ERROR;
return -1;
}
rv = h2_session_send(data, h2);
if(nghttp2_is_fatal(rv)) {
*err = CURLE_SEND_ERROR;
return -1;
}
len -= stream->upload_len;
/* Nullify here because we call nghttp2_session_send() and they
might refer to the old buffer. */
stream->upload_mem = NULL;
stream->upload_len = 0;
if(should_close_session(httpc)) {
H2BUGF(infof(data, "http2_send: nothing to do in this session"));
*err = CURLE_HTTP2;
return -1;
}
if(stream->upload_left) {
/* we are sure that we have more data to send here. Calling the
following API will make nghttp2_session_want_write() return
nonzero if remote window allows it, which then libcurl checks
socket is writable or not. See http2_perform_getsock(). */
nghttp2_session_resume_data(h2, stream->stream_id);
}
#ifdef DEBUG_HTTP2
if(!len) {
infof(data, "http2_send: easy %p (stream %u) win %u/%u",
data, stream->stream_id,
nghttp2_session_get_remote_window_size(httpc->h2),
nghttp2_session_get_stream_remote_window_size(httpc->h2,
stream->stream_id)
);
}
infof(data, "http2_send returns %zu for stream %u", len,
stream->stream_id);
#endif
return len;
}
/* Calculate number of headers contained in [mem, mem + len) */
/* Here, we assume the curl http code generate *correct* HTTP header
field block */
nheader = 0;
for(i = 1; i < len; ++i) {
if(hdbuf[i] == '\n' && hdbuf[i - 1] == '\r') {
++nheader;
++i;
}
}
if(nheader < 2)
goto fail;
/* We counted additional 2 \r\n in the first and last line. We need 3
new headers: :method, :path and :scheme. Therefore we need one
more space. */
nheader += 1;
nva = malloc(sizeof(nghttp2_nv) * nheader);
if(!nva) {
*err = CURLE_OUT_OF_MEMORY;
return -1;
}
/* Extract :method, :path from request line
We do line endings with CRLF so checking for CR is enough */
line_end = memchr(hdbuf, '\r', len);
if(!line_end)
goto fail;
/* Method does not contain spaces */
end = memchr(hdbuf, ' ', line_end - hdbuf);
if(!end || end == hdbuf)
goto fail;
nva[0].name = (unsigned char *)":method";
nva[0].namelen = strlen((char *)nva[0].name);
nva[0].value = (unsigned char *)hdbuf;
nva[0].valuelen = (size_t)(end - hdbuf);
nva[0].flags = NGHTTP2_NV_FLAG_NONE;
if(HEADER_OVERFLOW(nva[0])) {
failf(data, "Failed sending HTTP request: Header overflow");
goto fail;
}
hdbuf = end + 1;
/* Path may contain spaces so scan backwards */
end = NULL;
for(i = (size_t)(line_end - hdbuf); i; --i) {
if(hdbuf[i - 1] == ' ') {
end = &hdbuf[i - 1];
break;
}
}
if(!end || end == hdbuf)
goto fail;
nva[1].name = (unsigned char *)":path";
nva[1].namelen = strlen((char *)nva[1].name);
nva[1].value = (unsigned char *)hdbuf;
nva[1].valuelen = (size_t)(end - hdbuf);
nva[1].flags = NGHTTP2_NV_FLAG_NONE;
if(HEADER_OVERFLOW(nva[1])) {
failf(data, "Failed sending HTTP request: Header overflow");
goto fail;
}
nva[2].name = (unsigned char *)":scheme";
nva[2].namelen = strlen((char *)nva[2].name);
if(conn->handler->flags & PROTOPT_SSL)
nva[2].value = (unsigned char *)"https";
else
nva[2].value = (unsigned char *)"http";
nva[2].valuelen = strlen((char *)nva[2].value);
nva[2].flags = NGHTTP2_NV_FLAG_NONE;
if(HEADER_OVERFLOW(nva[2])) {
failf(data, "Failed sending HTTP request: Header overflow");
goto fail;
}
authority_idx = 0;
i = 3;
while(i < nheader) {
size_t hlen;
hdbuf = line_end + 2;
/* check for next CR, but only within the piece of data left in the given
buffer */
line_end = memchr(hdbuf, '\r', len - (hdbuf - (char *)mem));
if(!line_end || (line_end == hdbuf))
goto fail;
/* header continuation lines are not supported */
if(*hdbuf == ' ' || *hdbuf == '\t')
goto fail;
for(end = hdbuf; end < line_end && *end != ':'; ++end)
;
if(end == hdbuf || end == line_end)
goto fail;
hlen = end - hdbuf;
if(hlen == 4 && strncasecompare("host", hdbuf, 4)) {
authority_idx = i;
nva[i].name = (unsigned char *)":authority";
nva[i].namelen = strlen((char *)nva[i].name);
}
else {
nva[i].namelen = (size_t)(end - hdbuf);
/* Lower case the header name for HTTP/2 */
Curl_strntolower((char *)hdbuf, hdbuf, nva[i].namelen);
nva[i].name = (unsigned char *)hdbuf;
}
hdbuf = end + 1;
while(*hdbuf == ' ' || *hdbuf == '\t')
++hdbuf;
end = line_end;
switch(inspect_header((const char *)nva[i].name, nva[i].namelen, hdbuf,
end - hdbuf)) {
case HEADERINST_IGNORE:
/* skip header fields prohibited by HTTP/2 specification. */
--nheader;
continue;
case HEADERINST_TE_TRAILERS:
nva[i].value = (uint8_t*)"trailers";
nva[i].valuelen = sizeof("trailers") - 1;
break;
default:
nva[i].value = (unsigned char *)hdbuf;
nva[i].valuelen = (size_t)(end - hdbuf);
}
nva[i].flags = NGHTTP2_NV_FLAG_NONE;
if(HEADER_OVERFLOW(nva[i])) {
failf(data, "Failed sending HTTP request: Header overflow");
goto fail;
}
++i;
}
/* :authority must come before non-pseudo header fields */
if(authority_idx && authority_idx != AUTHORITY_DST_IDX) {
nghttp2_nv authority = nva[authority_idx];
for(i = authority_idx; i > AUTHORITY_DST_IDX; --i) {
nva[i] = nva[i - 1];
}
nva[i] = authority;
}
/* Warn stream may be rejected if cumulative length of headers is too large.
It appears nghttp2 will not send a header frame larger than 64KB. */
#define MAX_ACC 60000 /* <64KB to account for some overhead */
{
size_t acc = 0;
for(i = 0; i < nheader; ++i) {
acc += nva[i].namelen + nva[i].valuelen;
H2BUGF(infof(data, "h2 header: %.*s:%.*s",
nva[i].namelen, nva[i].name,
nva[i].valuelen, nva[i].value));
}
if(acc > MAX_ACC) {
infof(data, "http2_send: Warning: The cumulative length of all "
"headers exceeds %d bytes and that could cause the "
"stream to be rejected.", MAX_ACC);
}
}
h2_pri_spec(data, &pri_spec);
H2BUGF(infof(data, "http2_send request allowed %d (easy handle %p)",
nghttp2_session_check_request_allowed(h2), (void *)data));
switch(data->state.httpreq) {
case HTTPREQ_POST:
case HTTPREQ_POST_FORM:
case HTTPREQ_POST_MIME:
case HTTPREQ_PUT:
if(data->state.infilesize != -1)
stream->upload_left = data->state.infilesize;
else
/* data sending without specifying the data amount up front */
stream->upload_left = -1; /* unknown, but not zero */
data_prd.read_callback = data_source_read_callback;
data_prd.source.ptr = NULL;
stream_id = nghttp2_submit_request(h2, &pri_spec, nva, nheader,
&data_prd, data);
break;
default:
stream_id = nghttp2_submit_request(h2, &pri_spec, nva, nheader,
NULL, data);
}
Curl_safefree(nva);
if(stream_id < 0) {
H2BUGF(infof(data,
"http2_send() nghttp2_submit_request error (%s)%d",
nghttp2_strerror(stream_id), stream_id));
*err = CURLE_SEND_ERROR;
return -1;
}
infof(data, "Using Stream ID: %x (easy handle %p)",
stream_id, (void *)data);
stream->stream_id = stream_id;
rv = h2_session_send(data, h2);
if(rv) {
H2BUGF(infof(data,
"http2_send() nghttp2_session_send error (%s)%d",
nghttp2_strerror(rv), rv));
*err = CURLE_SEND_ERROR;
return -1;
}
if(should_close_session(httpc)) {
H2BUGF(infof(data, "http2_send: nothing to do in this session"));
*err = CURLE_HTTP2;
return -1;
}
/* If whole HEADERS frame was sent off to the underlying socket, the nghttp2
library calls data_source_read_callback. But only it found that no data
available, so it deferred the DATA transmission. Which means that
nghttp2_session_want_write() returns 0 on http2_perform_getsock(), which
results that no writable socket check is performed. To workaround this,
we issue nghttp2_session_resume_data() here to bring back DATA
transmission from deferred state. */
nghttp2_session_resume_data(h2, stream->stream_id);
return len;
fail:
free(nva);
*err = CURLE_SEND_ERROR;
return -1;
}
CURLcode Curl_http2_setup(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result;
struct http_conn *httpc = &conn->proto.httpc;
struct HTTP *stream = data->req.p.http;
DEBUGASSERT(data->state.buffer);
stream->stream_id = -1;
Curl_dyn_init(&stream->header_recvbuf, DYN_H2_HEADERS);
Curl_dyn_init(&stream->trailer_recvbuf, DYN_H2_TRAILERS);
stream->upload_left = 0;
stream->upload_mem = NULL;
stream->upload_len = 0;
stream->mem = data->state.buffer;
stream->len = data->set.buffer_size;
multi_connchanged(data->multi);
/* below this point only connection related inits are done, which only needs
to be done once per connection */
if((conn->handler == &Curl_handler_http2_ssl) ||
(conn->handler == &Curl_handler_http2))
return CURLE_OK; /* already done */
if(conn->handler->flags & PROTOPT_SSL)
conn->handler = &Curl_handler_http2_ssl;
else
conn->handler = &Curl_handler_http2;
result = http2_init(data, conn);
if(result) {
Curl_dyn_free(&stream->header_recvbuf);
return result;
}
infof(data, "Using HTTP2, server supports multiplexing");
conn->bits.multiplex = TRUE; /* at least potentially multiplexed */
conn->httpversion = 20;
conn->bundle->multiuse = BUNDLE_MULTIPLEX;
httpc->inbuflen = 0;
httpc->nread_inbuf = 0;
httpc->pause_stream_id = 0;
httpc->drain_total = 0;
infof(data, "Connection state changed (HTTP/2 confirmed)");
return CURLE_OK;
}
CURLcode Curl_http2_switched(struct Curl_easy *data,
const char *mem, size_t nread)
{
CURLcode result;
struct connectdata *conn = data->conn;
struct http_conn *httpc = &conn->proto.httpc;
int rv;
struct HTTP *stream = data->req.p.http;
result = Curl_http2_setup(data, conn);
if(result)
return result;
httpc->recv_underlying = conn->recv[FIRSTSOCKET];
httpc->send_underlying = conn->send[FIRSTSOCKET];
conn->recv[FIRSTSOCKET] = http2_recv;
conn->send[FIRSTSOCKET] = http2_send;
if(data->req.upgr101 == UPGR101_RECEIVED) {
/* stream 1 is opened implicitly on upgrade */
stream->stream_id = 1;
/* queue SETTINGS frame (again) */
rv = nghttp2_session_upgrade2(httpc->h2, httpc->binsettings, httpc->binlen,
data->state.httpreq == HTTPREQ_HEAD, NULL);
if(rv) {
failf(data, "nghttp2_session_upgrade2() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return CURLE_HTTP2;
}
rv = nghttp2_session_set_stream_user_data(httpc->h2,
stream->stream_id,
data);
if(rv) {
infof(data, "http/2: failed to set user_data for stream %d!",
stream->stream_id);
DEBUGASSERT(0);
}
}
else {
populate_settings(data, httpc);
/* stream ID is unknown at this point */
stream->stream_id = -1;
rv = nghttp2_submit_settings(httpc->h2, NGHTTP2_FLAG_NONE,
httpc->local_settings,
httpc->local_settings_num);
if(rv) {
failf(data, "nghttp2_submit_settings() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return CURLE_HTTP2;
}
}
rv = nghttp2_session_set_local_window_size(httpc->h2, NGHTTP2_FLAG_NONE, 0,
HTTP2_HUGE_WINDOW_SIZE);
if(rv) {
failf(data, "nghttp2_session_set_local_window_size() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return CURLE_HTTP2;
}
/* we are going to copy mem to httpc->inbuf. This is required since
mem is part of buffer pointed by stream->mem, and callbacks
called by nghttp2_session_mem_recv() will write stream specific
data into stream->mem, overwriting data already there. */
if(H2_BUFSIZE < nread) {
failf(data, "connection buffer size is too small to store data following "
"HTTP Upgrade response header: buflen=%d, datalen=%zu",
H2_BUFSIZE, nread);
return CURLE_HTTP2;
}
infof(data, "Copying HTTP/2 data in stream buffer to connection buffer"
" after upgrade: len=%zu",
nread);
if(nread)
memcpy(httpc->inbuf, mem, nread);
httpc->inbuflen = nread;
DEBUGASSERT(httpc->nread_inbuf == 0);
if(-1 == h2_process_pending_input(data, httpc, &result))
return CURLE_HTTP2;
return CURLE_OK;
}
CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause)
{
DEBUGASSERT(data);
DEBUGASSERT(data->conn);
/* if it isn't HTTP/2, we're done */
if(!(data->conn->handler->protocol & PROTO_FAMILY_HTTP) ||
!data->conn->proto.httpc.h2)
return CURLE_OK;
#ifdef NGHTTP2_HAS_SET_LOCAL_WINDOW_SIZE
else {
struct HTTP *stream = data->req.p.http;
struct http_conn *httpc = &data->conn->proto.httpc;
uint32_t window = !pause * HTTP2_HUGE_WINDOW_SIZE;
int rv = nghttp2_session_set_local_window_size(httpc->h2,
NGHTTP2_FLAG_NONE,
stream->stream_id,
window);
if(rv) {
failf(data, "nghttp2_session_set_local_window_size() failed: %s(%d)",
nghttp2_strerror(rv), rv);
return CURLE_HTTP2;
}
/* make sure the window update gets sent */
rv = h2_session_send(data, httpc->h2);
if(rv)
return CURLE_SEND_ERROR;
DEBUGF(infof(data, "Set HTTP/2 window size to %u for stream %u",
window, stream->stream_id));
#ifdef DEBUGBUILD
{
/* read out the stream local window again */
uint32_t window2 =
nghttp2_session_get_stream_local_window_size(httpc->h2,
stream->stream_id);
DEBUGF(infof(data, "HTTP/2 window size is now %u for stream %u",
window2, stream->stream_id));
}
#endif
}
#endif
return CURLE_OK;
}
CURLcode Curl_http2_add_child(struct Curl_easy *parent,
struct Curl_easy *child,
bool exclusive)
{
if(parent) {
struct Curl_http2_dep **tail;
struct Curl_http2_dep *dep = calloc(1, sizeof(struct Curl_http2_dep));
if(!dep)
return CURLE_OUT_OF_MEMORY;
dep->data = child;
if(parent->set.stream_dependents && exclusive) {
struct Curl_http2_dep *node = parent->set.stream_dependents;
while(node) {
node->data->set.stream_depends_on = child;
node = node->next;
}
tail = &child->set.stream_dependents;
while(*tail)
tail = &(*tail)->next;
DEBUGASSERT(!*tail);
*tail = parent->set.stream_dependents;
parent->set.stream_dependents = 0;
}
tail = &parent->set.stream_dependents;
while(*tail) {
(*tail)->data->set.stream_depends_e = FALSE;
tail = &(*tail)->next;
}
DEBUGASSERT(!*tail);
*tail = dep;
}
child->set.stream_depends_on = parent;
child->set.stream_depends_e = exclusive;
return CURLE_OK;
}
void Curl_http2_remove_child(struct Curl_easy *parent, struct Curl_easy *child)
{
struct Curl_http2_dep *last = 0;
struct Curl_http2_dep *data = parent->set.stream_dependents;
DEBUGASSERT(child->set.stream_depends_on == parent);
while(data && data->data != child) {
last = data;
data = data->next;
}
DEBUGASSERT(data);
if(data) {
if(last) {
last->next = data->next;
}
else {
parent->set.stream_dependents = data->next;
}
free(data);
}
child->set.stream_depends_on = 0;
child->set.stream_depends_e = FALSE;
}
void Curl_http2_cleanup_dependencies(struct Curl_easy *data)
{
while(data->set.stream_dependents) {
struct Curl_easy *tmp = data->set.stream_dependents->data;
Curl_http2_remove_child(data, tmp);
if(data->set.stream_depends_on)
Curl_http2_add_child(data->set.stream_depends_on, tmp, FALSE);
}
if(data->set.stream_depends_on)
Curl_http2_remove_child(data->set.stream_depends_on, data);
}
/* Only call this function for a transfer that already got a HTTP/2
CURLE_HTTP2_STREAM error! */
bool Curl_h2_http_1_1_error(struct Curl_easy *data)
{
struct HTTP *stream = data->req.p.http;
return (stream->error == NGHTTP2_HTTP_1_1_REQUIRED);
}
#else /* !USE_NGHTTP2 */
/* Satisfy external references even if http2 is not compiled in. */
#include <curl/curl.h>
char *curl_pushheader_bynum(struct curl_pushheaders *h, size_t num)
{
(void) h;
(void) num;
return NULL;
}
char *curl_pushheader_byname(struct curl_pushheaders *h, const char *header)
{
(void) h;
(void) header;
return NULL;
}
#endif /* USE_NGHTTP2 */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/connect.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h> /* <netinet/tcp.h> may need it */
#endif
#ifdef HAVE_SYS_UN_H
#include <sys/un.h> /* for sockaddr_un */
#endif
#ifdef HAVE_LINUX_TCP_H
#include <linux/tcp.h>
#elif defined(HAVE_NETINET_TCP_H)
#include <netinet/tcp.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#if (defined(HAVE_IOCTL_FIONBIO) && defined(NETWARE))
#include <sys/filio.h>
#endif
#ifdef NETWARE
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "if2ip.h"
#include "strerror.h"
#include "connect.h"
#include "select.h"
#include "url.h" /* for Curl_safefree() */
#include "multiif.h"
#include "sockaddr.h" /* required for Curl_sockaddr_storage */
#include "inet_ntop.h"
#include "inet_pton.h"
#include "vtls/vtls.h" /* for Curl_ssl_check_cxn() */
#include "progress.h"
#include "warnless.h"
#include "conncache.h"
#include "multihandle.h"
#include "version_win32.h"
#include "quic.h"
#include "socks.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
static bool verifyconnect(curl_socket_t sockfd, int *error);
#if defined(__DragonFly__) || defined(HAVE_WINSOCK2_H)
/* DragonFlyBSD and Windows use millisecond units */
#define KEEPALIVE_FACTOR(x) (x *= 1000)
#else
#define KEEPALIVE_FACTOR(x)
#endif
#if defined(HAVE_WINSOCK2_H) && !defined(SIO_KEEPALIVE_VALS)
#define SIO_KEEPALIVE_VALS _WSAIOW(IOC_VENDOR,4)
struct tcp_keepalive {
u_long onoff;
u_long keepalivetime;
u_long keepaliveinterval;
};
#endif
static void
tcpkeepalive(struct Curl_easy *data,
curl_socket_t sockfd)
{
int optval = data->set.tcp_keepalive?1:0;
/* only set IDLE and INTVL if setting KEEPALIVE is successful */
if(setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE,
(void *)&optval, sizeof(optval)) < 0) {
infof(data, "Failed to set SO_KEEPALIVE on fd %d", sockfd);
}
else {
#if defined(SIO_KEEPALIVE_VALS)
struct tcp_keepalive vals;
DWORD dummy;
vals.onoff = 1;
optval = curlx_sltosi(data->set.tcp_keepidle);
KEEPALIVE_FACTOR(optval);
vals.keepalivetime = optval;
optval = curlx_sltosi(data->set.tcp_keepintvl);
KEEPALIVE_FACTOR(optval);
vals.keepaliveinterval = optval;
if(WSAIoctl(sockfd, SIO_KEEPALIVE_VALS, (LPVOID) &vals, sizeof(vals),
NULL, 0, &dummy, NULL, NULL) != 0) {
infof(data, "Failed to set SIO_KEEPALIVE_VALS on fd %d: %d",
(int)sockfd, WSAGetLastError());
}
#else
#ifdef TCP_KEEPIDLE
optval = curlx_sltosi(data->set.tcp_keepidle);
KEEPALIVE_FACTOR(optval);
if(setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPIDLE,
(void *)&optval, sizeof(optval)) < 0) {
infof(data, "Failed to set TCP_KEEPIDLE on fd %d", sockfd);
}
#endif
#ifdef TCP_KEEPINTVL
optval = curlx_sltosi(data->set.tcp_keepintvl);
KEEPALIVE_FACTOR(optval);
if(setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPINTVL,
(void *)&optval, sizeof(optval)) < 0) {
infof(data, "Failed to set TCP_KEEPINTVL on fd %d", sockfd);
}
#endif
#ifdef TCP_KEEPALIVE
/* Mac OS X style */
optval = curlx_sltosi(data->set.tcp_keepidle);
KEEPALIVE_FACTOR(optval);
if(setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPALIVE,
(void *)&optval, sizeof(optval)) < 0) {
infof(data, "Failed to set TCP_KEEPALIVE on fd %d", sockfd);
}
#endif
#endif
}
}
static CURLcode
singleipconnect(struct Curl_easy *data,
struct connectdata *conn,
const struct Curl_addrinfo *ai, /* start connecting to this */
int tempindex); /* 0 or 1 among the temp ones */
/*
* Curl_timeleft() returns the amount of milliseconds left allowed for the
* transfer/connection. If the value is 0, there's no timeout (ie there's
* infinite time left). If the value is negative, the timeout time has already
* elapsed.
*
* If 'nowp' is non-NULL, it points to the current time.
* 'duringconnect' is FALSE if not during a connect, as then of course the
* connect timeout is not taken into account!
*
* @unittest: 1303
*/
#define TIMEOUT_CONNECT 1
#define TIMEOUT_MAXTIME 2
timediff_t Curl_timeleft(struct Curl_easy *data,
struct curltime *nowp,
bool duringconnect)
{
unsigned int timeout_set = 0;
timediff_t connect_timeout_ms = 0;
timediff_t maxtime_timeout_ms = 0;
timediff_t timeout_ms = 0;
struct curltime now;
/* The duration of a connect and the total transfer are calculated from two
different time-stamps. It can end up with the total timeout being reached
before the connect timeout expires and we must acknowledge whichever
timeout that is reached first. The total timeout is set per entire
operation, while the connect timeout is set per connect. */
if(data->set.timeout > 0) {
timeout_set = TIMEOUT_MAXTIME;
maxtime_timeout_ms = data->set.timeout;
}
if(duringconnect) {
timeout_set |= TIMEOUT_CONNECT;
connect_timeout_ms = (data->set.connecttimeout > 0) ?
data->set.connecttimeout : DEFAULT_CONNECT_TIMEOUT;
}
if(!timeout_set)
/* no timeout */
return 0;
if(!nowp) {
now = Curl_now();
nowp = &now;
}
if(timeout_set & TIMEOUT_MAXTIME) {
maxtime_timeout_ms -= Curl_timediff(*nowp, data->progress.t_startop);
timeout_ms = maxtime_timeout_ms;
}
if(timeout_set & TIMEOUT_CONNECT) {
connect_timeout_ms -= Curl_timediff(*nowp, data->progress.t_startsingle);
if(!(timeout_set & TIMEOUT_MAXTIME) ||
(connect_timeout_ms < maxtime_timeout_ms))
timeout_ms = connect_timeout_ms;
}
if(!timeout_ms)
/* avoid returning 0 as that means no timeout! */
return -1;
return timeout_ms;
}
static CURLcode bindlocal(struct Curl_easy *data,
curl_socket_t sockfd, int af, unsigned int scope)
{
struct connectdata *conn = data->conn;
struct Curl_sockaddr_storage sa;
struct sockaddr *sock = (struct sockaddr *)&sa; /* bind to this address */
curl_socklen_t sizeof_sa = 0; /* size of the data sock points to */
struct sockaddr_in *si4 = (struct sockaddr_in *)&sa;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *si6 = (struct sockaddr_in6 *)&sa;
#endif
struct Curl_dns_entry *h = NULL;
unsigned short port = data->set.localport; /* use this port number, 0 for
"random" */
/* how many port numbers to try to bind to, increasing one at a time */
int portnum = data->set.localportrange;
const char *dev = data->set.str[STRING_DEVICE];
int error;
#ifdef IP_BIND_ADDRESS_NO_PORT
int on = 1;
#endif
/*************************************************************
* Select device to bind socket to
*************************************************************/
if(!dev && !port)
/* no local kind of binding was requested */
return CURLE_OK;
memset(&sa, 0, sizeof(struct Curl_sockaddr_storage));
if(dev && (strlen(dev)<255) ) {
char myhost[256] = "";
int done = 0; /* -1 for error, 1 for address found */
bool is_interface = FALSE;
bool is_host = FALSE;
static const char *if_prefix = "if!";
static const char *host_prefix = "host!";
if(strncmp(if_prefix, dev, strlen(if_prefix)) == 0) {
dev += strlen(if_prefix);
is_interface = TRUE;
}
else if(strncmp(host_prefix, dev, strlen(host_prefix)) == 0) {
dev += strlen(host_prefix);
is_host = TRUE;
}
/* interface */
if(!is_host) {
#ifdef SO_BINDTODEVICE
/* I am not sure any other OSs than Linux that provide this feature,
* and at the least I cannot test. --Ben
*
* This feature allows one to tightly bind the local socket to a
* particular interface. This will force even requests to other
* local interfaces to go out the external interface.
*
*
* Only bind to the interface when specified as interface, not just
* as a hostname or ip address.
*
* interface might be a VRF, eg: vrf-blue, which means it cannot be
* converted to an IP address and would fail Curl_if2ip. Simply try
* to use it straight away.
*/
if(setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE,
dev, (curl_socklen_t)strlen(dev) + 1) == 0) {
/* This is typically "errno 1, error: Operation not permitted" if
* you're not running as root or another suitable privileged
* user.
* If it succeeds it means the parameter was a valid interface and
* not an IP address. Return immediately.
*/
return CURLE_OK;
}
#endif
switch(Curl_if2ip(af, scope, conn->scope_id, dev,
myhost, sizeof(myhost))) {
case IF2IP_NOT_FOUND:
if(is_interface) {
/* Do not fall back to treating it as a host name */
failf(data, "Couldn't bind to interface '%s'", dev);
return CURLE_INTERFACE_FAILED;
}
break;
case IF2IP_AF_NOT_SUPPORTED:
/* Signal the caller to try another address family if available */
return CURLE_UNSUPPORTED_PROTOCOL;
case IF2IP_FOUND:
is_interface = TRUE;
/*
* We now have the numerical IP address in the 'myhost' buffer
*/
infof(data, "Local Interface %s is ip %s using address family %i",
dev, myhost, af);
done = 1;
break;
}
}
if(!is_interface) {
/*
* This was not an interface, resolve the name as a host name
* or IP number
*
* Temporarily force name resolution to use only the address type
* of the connection. The resolve functions should really be changed
* to take a type parameter instead.
*/
unsigned char ipver = conn->ip_version;
int rc;
if(af == AF_INET)
conn->ip_version = CURL_IPRESOLVE_V4;
#ifdef ENABLE_IPV6
else if(af == AF_INET6)
conn->ip_version = CURL_IPRESOLVE_V6;
#endif
rc = Curl_resolv(data, dev, 0, FALSE, &h);
if(rc == CURLRESOLV_PENDING)
(void)Curl_resolver_wait_resolv(data, &h);
conn->ip_version = ipver;
if(h) {
/* convert the resolved address, sizeof myhost >= INET_ADDRSTRLEN */
Curl_printable_address(h->addr, myhost, sizeof(myhost));
infof(data, "Name '%s' family %i resolved to '%s' family %i",
dev, af, myhost, h->addr->ai_family);
Curl_resolv_unlock(data, h);
if(af != h->addr->ai_family) {
/* bad IP version combo, signal the caller to try another address
family if available */
return CURLE_UNSUPPORTED_PROTOCOL;
}
done = 1;
}
else {
/*
* provided dev was no interface (or interfaces are not supported
* e.g. solaris) no ip address and no domain we fail here
*/
done = -1;
}
}
if(done > 0) {
#ifdef ENABLE_IPV6
/* IPv6 address */
if(af == AF_INET6) {
#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
char *scope_ptr = strchr(myhost, '%');
if(scope_ptr)
*(scope_ptr++) = 0;
#endif
if(Curl_inet_pton(AF_INET6, myhost, &si6->sin6_addr) > 0) {
si6->sin6_family = AF_INET6;
si6->sin6_port = htons(port);
#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
if(scope_ptr)
/* The "myhost" string either comes from Curl_if2ip or from
Curl_printable_address. The latter returns only numeric scope
IDs and the former returns none at all. So the scope ID, if
present, is known to be numeric */
si6->sin6_scope_id = atoi(scope_ptr);
#endif
}
sizeof_sa = sizeof(struct sockaddr_in6);
}
else
#endif
/* IPv4 address */
if((af == AF_INET) &&
(Curl_inet_pton(AF_INET, myhost, &si4->sin_addr) > 0)) {
si4->sin_family = AF_INET;
si4->sin_port = htons(port);
sizeof_sa = sizeof(struct sockaddr_in);
}
}
if(done < 1) {
/* errorbuf is set false so failf will overwrite any message already in
the error buffer, so the user receives this error message instead of a
generic resolve error. */
data->state.errorbuf = FALSE;
failf(data, "Couldn't bind to '%s'", dev);
return CURLE_INTERFACE_FAILED;
}
}
else {
/* no device was given, prepare sa to match af's needs */
#ifdef ENABLE_IPV6
if(af == AF_INET6) {
si6->sin6_family = AF_INET6;
si6->sin6_port = htons(port);
sizeof_sa = sizeof(struct sockaddr_in6);
}
else
#endif
if(af == AF_INET) {
si4->sin_family = AF_INET;
si4->sin_port = htons(port);
sizeof_sa = sizeof(struct sockaddr_in);
}
}
#ifdef IP_BIND_ADDRESS_NO_PORT
(void)setsockopt(sockfd, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &on, sizeof(on));
#endif
for(;;) {
if(bind(sockfd, sock, sizeof_sa) >= 0) {
/* we succeeded to bind */
struct Curl_sockaddr_storage add;
curl_socklen_t size = sizeof(add);
memset(&add, 0, sizeof(struct Curl_sockaddr_storage));
if(getsockname(sockfd, (struct sockaddr *) &add, &size) < 0) {
char buffer[STRERROR_LEN];
data->state.os_errno = error = SOCKERRNO;
failf(data, "getsockname() failed with errno %d: %s",
error, Curl_strerror(error, buffer, sizeof(buffer)));
return CURLE_INTERFACE_FAILED;
}
infof(data, "Local port: %hu", port);
conn->bits.bound = TRUE;
return CURLE_OK;
}
if(--portnum > 0) {
infof(data, "Bind to local port %hu failed, trying next", port);
port++; /* try next port */
/* We re-use/clobber the port variable here below */
if(sock->sa_family == AF_INET)
si4->sin_port = ntohs(port);
#ifdef ENABLE_IPV6
else
si6->sin6_port = ntohs(port);
#endif
}
else
break;
}
{
char buffer[STRERROR_LEN];
data->state.os_errno = error = SOCKERRNO;
failf(data, "bind failed with errno %d: %s",
error, Curl_strerror(error, buffer, sizeof(buffer)));
}
return CURLE_INTERFACE_FAILED;
}
/*
* verifyconnect() returns TRUE if the connect really has happened.
*/
static bool verifyconnect(curl_socket_t sockfd, int *error)
{
bool rc = TRUE;
#ifdef SO_ERROR
int err = 0;
curl_socklen_t errSize = sizeof(err);
#ifdef WIN32
/*
* In October 2003 we effectively nullified this function on Windows due to
* problems with it using all CPU in multi-threaded cases.
*
* In May 2004, we bring it back to offer more info back on connect failures.
* Gisle Vanem could reproduce the former problems with this function, but
* could avoid them by adding this SleepEx() call below:
*
* "I don't have Rational Quantify, but the hint from his post was
* ntdll::NtRemoveIoCompletion(). So I'd assume the SleepEx (or maybe
* just Sleep(0) would be enough?) would release whatever
* mutex/critical-section the ntdll call is waiting on.
*
* Someone got to verify this on Win-NT 4.0, 2000."
*/
#ifdef _WIN32_WCE
Sleep(0);
#else
SleepEx(0, FALSE);
#endif
#endif
if(0 != getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (void *)&err, &errSize))
err = SOCKERRNO;
#ifdef _WIN32_WCE
/* Old WinCE versions don't support SO_ERROR */
if(WSAENOPROTOOPT == err) {
SET_SOCKERRNO(0);
err = 0;
}
#endif
#if defined(EBADIOCTL) && defined(__minix)
/* Minix 3.1.x doesn't support getsockopt on UDP sockets */
if(EBADIOCTL == err) {
SET_SOCKERRNO(0);
err = 0;
}
#endif
if((0 == err) || (EISCONN == err))
/* we are connected, awesome! */
rc = TRUE;
else
/* This wasn't a successful connect */
rc = FALSE;
if(error)
*error = err;
#else
(void)sockfd;
if(error)
*error = SOCKERRNO;
#endif
return rc;
}
/* update tempaddr[tempindex] (to the next entry), makes sure to stick
to the correct family */
static struct Curl_addrinfo *ainext(struct connectdata *conn,
int tempindex,
bool next) /* use next entry? */
{
struct Curl_addrinfo *ai = conn->tempaddr[tempindex];
if(ai && next)
ai = ai->ai_next;
while(ai && (ai->ai_family != conn->tempfamily[tempindex]))
ai = ai->ai_next;
conn->tempaddr[tempindex] = ai;
return ai;
}
/* Used within the multi interface. Try next IP address, returns error if no
more address exists or error */
static CURLcode trynextip(struct Curl_easy *data,
struct connectdata *conn,
int sockindex,
int tempindex)
{
CURLcode result = CURLE_COULDNT_CONNECT;
/* First clean up after the failed socket.
Don't close it yet to ensure that the next IP's socket gets a different
file descriptor, which can prevent bugs when the curl_multi_socket_action
interface is used with certain select() replacements such as kqueue. */
curl_socket_t fd_to_close = conn->tempsock[tempindex];
conn->tempsock[tempindex] = CURL_SOCKET_BAD;
if(sockindex == FIRSTSOCKET) {
struct Curl_addrinfo *ai = conn->tempaddr[tempindex];
while(ai) {
result = singleipconnect(data, conn, ai, tempindex);
if(result == CURLE_COULDNT_CONNECT) {
ai = ainext(conn, tempindex, TRUE);
continue;
}
break;
}
}
if(fd_to_close != CURL_SOCKET_BAD)
Curl_closesocket(data, conn, fd_to_close);
return result;
}
/* Copies connection info into the transfer handle to make it available when
the transfer handle is no longer associated with the connection. */
void Curl_persistconninfo(struct Curl_easy *data, struct connectdata *conn,
char *local_ip, int local_port)
{
memcpy(data->info.conn_primary_ip, conn->primary_ip, MAX_IPADR_LEN);
if(local_ip && local_ip[0])
memcpy(data->info.conn_local_ip, local_ip, MAX_IPADR_LEN);
else
data->info.conn_local_ip[0] = 0;
data->info.conn_scheme = conn->handler->scheme;
data->info.conn_protocol = conn->handler->protocol;
data->info.conn_primary_port = conn->port;
data->info.conn_local_port = local_port;
}
/* retrieves ip address and port from a sockaddr structure.
note it calls Curl_inet_ntop which sets errno on fail, not SOCKERRNO. */
bool Curl_addr2string(struct sockaddr *sa, curl_socklen_t salen,
char *addr, int *port)
{
struct sockaddr_in *si = NULL;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *si6 = NULL;
#endif
#if (defined(HAVE_SYS_UN_H) || defined(WIN32_SOCKADDR_UN)) && defined(AF_UNIX)
struct sockaddr_un *su = NULL;
#else
(void)salen;
#endif
switch(sa->sa_family) {
case AF_INET:
si = (struct sockaddr_in *)(void *) sa;
if(Curl_inet_ntop(sa->sa_family, &si->sin_addr,
addr, MAX_IPADR_LEN)) {
unsigned short us_port = ntohs(si->sin_port);
*port = us_port;
return TRUE;
}
break;
#ifdef ENABLE_IPV6
case AF_INET6:
si6 = (struct sockaddr_in6 *)(void *) sa;
if(Curl_inet_ntop(sa->sa_family, &si6->sin6_addr,
addr, MAX_IPADR_LEN)) {
unsigned short us_port = ntohs(si6->sin6_port);
*port = us_port;
return TRUE;
}
break;
#endif
#if (defined(HAVE_SYS_UN_H) || defined(WIN32_SOCKADDR_UN)) && defined(AF_UNIX)
case AF_UNIX:
if(salen > (curl_socklen_t)sizeof(CURL_SA_FAMILY_T)) {
su = (struct sockaddr_un*)sa;
msnprintf(addr, MAX_IPADR_LEN, "%s", su->sun_path);
}
else
addr[0] = 0; /* socket with no name */
*port = 0;
return TRUE;
#endif
default:
break;
}
addr[0] = '\0';
*port = 0;
errno = EAFNOSUPPORT;
return FALSE;
}
/* retrieves the start/end point information of a socket of an established
connection */
void Curl_conninfo_remote(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t sockfd)
{
#ifdef HAVE_GETPEERNAME
char buffer[STRERROR_LEN];
struct Curl_sockaddr_storage ssrem;
curl_socklen_t plen;
int port;
plen = sizeof(struct Curl_sockaddr_storage);
memset(&ssrem, 0, sizeof(ssrem));
if(getpeername(sockfd, (struct sockaddr*) &ssrem, &plen)) {
int error = SOCKERRNO;
failf(data, "getpeername() failed with errno %d: %s",
error, Curl_strerror(error, buffer, sizeof(buffer)));
return;
}
if(!Curl_addr2string((struct sockaddr*)&ssrem, plen,
conn->primary_ip, &port)) {
failf(data, "ssrem inet_ntop() failed with errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
return;
}
#else
(void)data;
(void)conn;
(void)sockfd;
#endif
}
/* retrieves the start/end point information of a socket of an established
connection */
void Curl_conninfo_local(struct Curl_easy *data, curl_socket_t sockfd,
char *local_ip, int *local_port)
{
#ifdef HAVE_GETSOCKNAME
char buffer[STRERROR_LEN];
struct Curl_sockaddr_storage ssloc;
curl_socklen_t slen;
slen = sizeof(struct Curl_sockaddr_storage);
memset(&ssloc, 0, sizeof(ssloc));
if(getsockname(sockfd, (struct sockaddr*) &ssloc, &slen)) {
int error = SOCKERRNO;
failf(data, "getsockname() failed with errno %d: %s",
error, Curl_strerror(error, buffer, sizeof(buffer)));
return;
}
if(!Curl_addr2string((struct sockaddr*)&ssloc, slen,
local_ip, local_port)) {
failf(data, "ssloc inet_ntop() failed with errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
return;
}
#else
(void)data;
(void)sockfd;
(void)local_ip;
(void)local_port;
#endif
}
/* retrieves the start/end point information of a socket of an established
connection */
void Curl_updateconninfo(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sockfd)
{
/* 'local_ip' and 'local_port' get filled with local's numerical ip address
and port number whenever an outgoing connection is **established** from
the primary socket to a remote address. */
char local_ip[MAX_IPADR_LEN] = "";
int local_port = -1;
if(!conn->bits.reuse && !conn->bits.tcp_fastopen)
Curl_conninfo_remote(data, conn, sockfd);
Curl_conninfo_local(data, sockfd, local_ip, &local_port);
/* persist connection info in session handle */
Curl_persistconninfo(data, conn, local_ip, local_port);
}
/* After a TCP connection to the proxy has been verified, this function does
the next magic steps. If 'done' isn't set TRUE, it is not done yet and
must be called again.
Note: this function's sub-functions call failf()
*/
static CURLcode connect_SOCKS(struct Curl_easy *data, int sockindex,
bool *done)
{
CURLcode result = CURLE_OK;
#ifndef CURL_DISABLE_PROXY
CURLproxycode pxresult = CURLPX_OK;
struct connectdata *conn = data->conn;
if(conn->bits.socksproxy) {
/* for the secondary socket (FTP), use the "connect to host"
* but ignore the "connect to port" (use the secondary port)
*/
const char * const host =
conn->bits.httpproxy ?
conn->http_proxy.host.name :
conn->bits.conn_to_host ?
conn->conn_to_host.name :
sockindex == SECONDARYSOCKET ?
conn->secondaryhostname : conn->host.name;
const int port =
conn->bits.httpproxy ? (int)conn->http_proxy.port :
sockindex == SECONDARYSOCKET ? conn->secondary_port :
conn->bits.conn_to_port ? conn->conn_to_port :
conn->remote_port;
switch(conn->socks_proxy.proxytype) {
case CURLPROXY_SOCKS5:
case CURLPROXY_SOCKS5_HOSTNAME:
pxresult = Curl_SOCKS5(conn->socks_proxy.user, conn->socks_proxy.passwd,
host, port, sockindex, data, done);
break;
case CURLPROXY_SOCKS4:
case CURLPROXY_SOCKS4A:
pxresult = Curl_SOCKS4(conn->socks_proxy.user, host, port, sockindex,
data, done);
break;
default:
failf(data, "unknown proxytype option given");
result = CURLE_COULDNT_CONNECT;
} /* switch proxytype */
if(pxresult) {
result = CURLE_PROXY;
data->info.pxcode = pxresult;
}
}
else
#else
(void)data;
(void)sockindex;
#endif /* CURL_DISABLE_PROXY */
*done = TRUE; /* no SOCKS proxy, so consider us connected */
return result;
}
/*
* post_SOCKS() is called after a successful connect to the peer, which
* *could* be a SOCKS proxy
*/
static void post_SOCKS(struct Curl_easy *data,
struct connectdata *conn,
int sockindex,
bool *connected)
{
conn->bits.tcpconnect[sockindex] = TRUE;
*connected = TRUE;
if(sockindex == FIRSTSOCKET)
Curl_pgrsTime(data, TIMER_CONNECT); /* connect done */
Curl_updateconninfo(data, conn, conn->sock[sockindex]);
Curl_verboseconnect(data, conn);
data->info.numconnects++; /* to track the number of connections made */
}
/*
* Curl_is_connected() checks if the socket has connected.
*/
CURLcode Curl_is_connected(struct Curl_easy *data,
struct connectdata *conn,
int sockindex,
bool *connected)
{
CURLcode result = CURLE_OK;
timediff_t allow;
int error = 0;
struct curltime now;
int rc = 0;
unsigned int i;
DEBUGASSERT(sockindex >= FIRSTSOCKET && sockindex <= SECONDARYSOCKET);
*connected = FALSE; /* a very negative world view is best */
if(conn->bits.tcpconnect[sockindex]) {
/* we are connected already! */
*connected = TRUE;
return CURLE_OK;
}
now = Curl_now();
if(SOCKS_STATE(conn->cnnct.state)) {
/* still doing SOCKS */
result = connect_SOCKS(data, sockindex, connected);
if(!result && *connected)
post_SOCKS(data, conn, sockindex, connected);
return result;
}
for(i = 0; i<2; i++) {
const int other = i ^ 1;
if(conn->tempsock[i] == CURL_SOCKET_BAD)
continue;
error = 0;
#ifdef ENABLE_QUIC
if(conn->transport == TRNSPRT_QUIC) {
result = Curl_quic_is_connected(data, conn, i, connected);
if(!result && *connected) {
/* use this socket from now on */
conn->sock[sockindex] = conn->tempsock[i];
conn->ip_addr = conn->tempaddr[i];
conn->tempsock[i] = CURL_SOCKET_BAD;
post_SOCKS(data, conn, sockindex, connected);
connkeep(conn, "HTTP/3 default");
return CURLE_OK;
}
if(result) {
conn->tempsock[i] = CURL_SOCKET_BAD;
error = SOCKERRNO;
}
}
else
#endif
{
#ifdef mpeix
/* Call this function once now, and ignore the results. We do this to
"clear" the error state on the socket so that we can later read it
reliably. This is reported necessary on the MPE/iX operating
system. */
(void)verifyconnect(conn->tempsock[i], NULL);
#endif
/* check socket for connect */
rc = SOCKET_WRITABLE(conn->tempsock[i], 0);
}
if(rc == 0) { /* no connection yet */
if(Curl_timediff(now, conn->connecttime) >=
conn->timeoutms_per_addr[i]) {
infof(data, "After %" CURL_FORMAT_TIMEDIFF_T
"ms connect time, move on!", conn->timeoutms_per_addr[i]);
error = ETIMEDOUT;
}
/* should we try another protocol family? */
if(i == 0 && !conn->bits.parallel_connect &&
(Curl_timediff(now, conn->connecttime) >=
data->set.happy_eyeballs_timeout)) {
conn->bits.parallel_connect = TRUE; /* starting now */
trynextip(data, conn, sockindex, 1);
}
}
else if(rc == CURL_CSELECT_OUT || conn->bits.tcp_fastopen) {
if(verifyconnect(conn->tempsock[i], &error)) {
/* we are connected with TCP, awesome! */
/* use this socket from now on */
conn->sock[sockindex] = conn->tempsock[i];
conn->ip_addr = conn->tempaddr[i];
conn->tempsock[i] = CURL_SOCKET_BAD;
#ifdef ENABLE_IPV6
conn->bits.ipv6 = (conn->ip_addr->ai_family == AF_INET6)?TRUE:FALSE;
#endif
/* close the other socket, if open */
if(conn->tempsock[other] != CURL_SOCKET_BAD) {
Curl_closesocket(data, conn, conn->tempsock[other]);
conn->tempsock[other] = CURL_SOCKET_BAD;
}
/* see if we need to kick off any SOCKS proxy magic once we
connected */
result = connect_SOCKS(data, sockindex, connected);
if(result || !*connected)
return result;
post_SOCKS(data, conn, sockindex, connected);
return CURLE_OK;
}
}
else if(rc & CURL_CSELECT_ERR) {
(void)verifyconnect(conn->tempsock[i], &error);
}
/*
* The connection failed here, we should attempt to connect to the "next
* address" for the given host. But first remember the latest error.
*/
if(error) {
data->state.os_errno = error;
SET_SOCKERRNO(error);
if(conn->tempaddr[i]) {
CURLcode status;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
char ipaddress[MAX_IPADR_LEN];
char buffer[STRERROR_LEN];
Curl_printable_address(conn->tempaddr[i], ipaddress,
sizeof(ipaddress));
infof(data, "connect to %s port %u failed: %s",
ipaddress, conn->port,
Curl_strerror(error, buffer, sizeof(buffer)));
#endif
allow = Curl_timeleft(data, &now, TRUE);
conn->timeoutms_per_addr[i] = conn->tempaddr[i]->ai_next == NULL ?
allow : allow / 2;
ainext(conn, i, TRUE);
status = trynextip(data, conn, sockindex, i);
if((status != CURLE_COULDNT_CONNECT) ||
conn->tempsock[other] == CURL_SOCKET_BAD)
/* the last attempt failed and no other sockets remain open */
result = status;
}
}
}
/*
* Now that we've checked whether we are connected, check whether we've
* already timed out.
*
* First figure out how long time we have left to connect */
allow = Curl_timeleft(data, &now, TRUE);
if(allow < 0) {
/* time-out, bail out, go home */
failf(data, "Connection timeout after %ld ms",
Curl_timediff(now, data->progress.t_startsingle));
return CURLE_OPERATION_TIMEDOUT;
}
if(result &&
(conn->tempsock[0] == CURL_SOCKET_BAD) &&
(conn->tempsock[1] == CURL_SOCKET_BAD)) {
/* no more addresses to try */
const char *hostname;
char buffer[STRERROR_LEN];
/* if the first address family runs out of addresses to try before the
happy eyeball timeout, go ahead and try the next family now */
result = trynextip(data, conn, sockindex, 1);
if(!result)
return result;
#ifndef CURL_DISABLE_PROXY
if(conn->bits.socksproxy)
hostname = conn->socks_proxy.host.name;
else if(conn->bits.httpproxy)
hostname = conn->http_proxy.host.name;
else
#endif
if(conn->bits.conn_to_host)
hostname = conn->conn_to_host.name;
else
hostname = conn->host.name;
failf(data, "Failed to connect to %s port %u after "
"%" CURL_FORMAT_TIMEDIFF_T " ms: %s",
hostname, conn->port,
Curl_timediff(now, data->progress.t_startsingle),
Curl_strerror(error, buffer, sizeof(buffer)));
Curl_quic_disconnect(data, conn, 0);
Curl_quic_disconnect(data, conn, 1);
#ifdef WSAETIMEDOUT
if(WSAETIMEDOUT == data->state.os_errno)
result = CURLE_OPERATION_TIMEDOUT;
#elif defined(ETIMEDOUT)
if(ETIMEDOUT == data->state.os_errno)
result = CURLE_OPERATION_TIMEDOUT;
#endif
}
else
result = CURLE_OK; /* still trying */
return result;
}
static void tcpnodelay(struct Curl_easy *data, curl_socket_t sockfd)
{
#if defined(TCP_NODELAY)
curl_socklen_t onoff = (curl_socklen_t) 1;
int level = IPPROTO_TCP;
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
char buffer[STRERROR_LEN];
#else
(void) data;
#endif
if(setsockopt(sockfd, level, TCP_NODELAY, (void *)&onoff,
sizeof(onoff)) < 0)
infof(data, "Could not set TCP_NODELAY: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
#else
(void)data;
(void)sockfd;
#endif
}
#ifdef SO_NOSIGPIPE
/* The preferred method on Mac OS X (10.2 and later) to prevent SIGPIPEs when
sending data to a dead peer (instead of relying on the 4th argument to send
being MSG_NOSIGNAL). Possibly also existing and in use on other BSD
systems? */
static void nosigpipe(struct Curl_easy *data,
curl_socket_t sockfd)
{
int onoff = 1;
if(setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&onoff,
sizeof(onoff)) < 0) {
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
char buffer[STRERROR_LEN];
infof(data, "Could not set SO_NOSIGPIPE: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
#endif
}
}
#else
#define nosigpipe(x,y) Curl_nop_stmt
#endif
#ifdef USE_WINSOCK
/* When you run a program that uses the Windows Sockets API, you may
experience slow performance when you copy data to a TCP server.
https://support.microsoft.com/kb/823764
Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
Buffer Size
The problem described in this knowledge-base is applied only to pre-Vista
Windows. Following function trying to detect OS version and skips
SO_SNDBUF adjustment for Windows Vista and above.
*/
#define DETECT_OS_NONE 0
#define DETECT_OS_PREVISTA 1
#define DETECT_OS_VISTA_OR_LATER 2
void Curl_sndbufset(curl_socket_t sockfd)
{
int val = CURL_MAX_WRITE_SIZE + 32;
int curval = 0;
int curlen = sizeof(curval);
static int detectOsState = DETECT_OS_NONE;
if(detectOsState == DETECT_OS_NONE) {
if(curlx_verify_windows_version(6, 0, PLATFORM_WINNT,
VERSION_GREATER_THAN_EQUAL))
detectOsState = DETECT_OS_VISTA_OR_LATER;
else
detectOsState = DETECT_OS_PREVISTA;
}
if(detectOsState == DETECT_OS_VISTA_OR_LATER)
return;
if(getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (char *)&curval, &curlen) == 0)
if(curval > val)
return;
setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (const char *)&val, sizeof(val));
}
#endif
/*
* singleipconnect()
*
* Note that even on connect fail it returns CURLE_OK, but with 'sock' set to
* CURL_SOCKET_BAD. Other errors will however return proper errors.
*
* singleipconnect() connects to the given IP only, and it may return without
* having connected.
*/
static CURLcode singleipconnect(struct Curl_easy *data,
struct connectdata *conn,
const struct Curl_addrinfo *ai,
int tempindex)
{
struct Curl_sockaddr_ex addr;
int rc = -1;
int error = 0;
bool isconnected = FALSE;
curl_socket_t sockfd;
CURLcode result;
char ipaddress[MAX_IPADR_LEN];
int port;
bool is_tcp;
#ifdef TCP_FASTOPEN_CONNECT
int optval = 1;
#endif
char buffer[STRERROR_LEN];
curl_socket_t *sockp = &conn->tempsock[tempindex];
*sockp = CURL_SOCKET_BAD;
result = Curl_socket(data, ai, &addr, &sockfd);
if(result)
return result;
/* store remote address and port used in this connection attempt */
if(!Curl_addr2string((struct sockaddr*)&addr.sa_addr, addr.addrlen,
ipaddress, &port)) {
/* malformed address or bug in inet_ntop, try next address */
failf(data, "sa_addr inet_ntop() failed with errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
Curl_closesocket(data, conn, sockfd);
return CURLE_OK;
}
infof(data, " Trying %s:%d...", ipaddress, port);
#ifdef ENABLE_IPV6
is_tcp = (addr.family == AF_INET || addr.family == AF_INET6) &&
addr.socktype == SOCK_STREAM;
#else
is_tcp = (addr.family == AF_INET) && addr.socktype == SOCK_STREAM;
#endif
if(is_tcp && data->set.tcp_nodelay)
tcpnodelay(data, sockfd);
nosigpipe(data, sockfd);
Curl_sndbufset(sockfd);
if(is_tcp && data->set.tcp_keepalive)
tcpkeepalive(data, sockfd);
if(data->set.fsockopt) {
/* activate callback for setting socket options */
Curl_set_in_callback(data, true);
error = data->set.fsockopt(data->set.sockopt_client,
sockfd,
CURLSOCKTYPE_IPCXN);
Curl_set_in_callback(data, false);
if(error == CURL_SOCKOPT_ALREADY_CONNECTED)
isconnected = TRUE;
else if(error) {
Curl_closesocket(data, conn, sockfd); /* close the socket and bail out */
return CURLE_ABORTED_BY_CALLBACK;
}
}
/* possibly bind the local end to an IP, interface or port */
if(addr.family == AF_INET
#ifdef ENABLE_IPV6
|| addr.family == AF_INET6
#endif
) {
result = bindlocal(data, sockfd, addr.family,
Curl_ipv6_scope((struct sockaddr*)&addr.sa_addr));
if(result) {
Curl_closesocket(data, conn, sockfd); /* close socket and bail out */
if(result == CURLE_UNSUPPORTED_PROTOCOL) {
/* The address family is not supported on this interface.
We can continue trying addresses */
return CURLE_COULDNT_CONNECT;
}
return result;
}
}
/* set socket non-blocking */
(void)curlx_nonblock(sockfd, TRUE);
conn->connecttime = Curl_now();
if(conn->num_addr > 1) {
Curl_expire(data, conn->timeoutms_per_addr[0], EXPIRE_DNS_PER_NAME);
Curl_expire(data, conn->timeoutms_per_addr[1], EXPIRE_DNS_PER_NAME2);
}
/* Connect TCP and QUIC sockets */
if(!isconnected && (conn->transport != TRNSPRT_UDP)) {
if(conn->bits.tcp_fastopen) {
#if defined(CONNECT_DATA_IDEMPOTENT) /* Darwin */
# if defined(HAVE_BUILTIN_AVAILABLE)
/* while connectx function is available since macOS 10.11 / iOS 9,
it did not have the interface declared correctly until
Xcode 9 / macOS SDK 10.13 */
if(__builtin_available(macOS 10.11, iOS 9.0, tvOS 9.0, watchOS 2.0, *)) {
sa_endpoints_t endpoints;
endpoints.sae_srcif = 0;
endpoints.sae_srcaddr = NULL;
endpoints.sae_srcaddrlen = 0;
endpoints.sae_dstaddr = &addr.sa_addr;
endpoints.sae_dstaddrlen = addr.addrlen;
rc = connectx(sockfd, &endpoints, SAE_ASSOCID_ANY,
CONNECT_RESUME_ON_READ_WRITE | CONNECT_DATA_IDEMPOTENT,
NULL, 0, NULL, NULL);
}
else {
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
}
# else
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
# endif /* HAVE_BUILTIN_AVAILABLE */
#elif defined(TCP_FASTOPEN_CONNECT) /* Linux >= 4.11 */
if(setsockopt(sockfd, IPPROTO_TCP, TCP_FASTOPEN_CONNECT,
(void *)&optval, sizeof(optval)) < 0)
infof(data, "Failed to enable TCP Fast Open on fd %d", sockfd);
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
#elif defined(MSG_FASTOPEN) /* old Linux */
if(conn->given->flags & PROTOPT_SSL)
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
else
rc = 0; /* Do nothing */
#endif
}
else {
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
}
if(-1 == rc)
error = SOCKERRNO;
#ifdef ENABLE_QUIC
else if(conn->transport == TRNSPRT_QUIC) {
/* pass in 'sockfd' separately since it hasn't been put into the
tempsock array at this point */
result = Curl_quic_connect(data, conn, sockfd, tempindex,
&addr.sa_addr, addr.addrlen);
if(result)
error = SOCKERRNO;
}
#endif
}
else {
*sockp = sockfd;
return CURLE_OK;
}
if(-1 == rc) {
switch(error) {
case EINPROGRESS:
case EWOULDBLOCK:
#if defined(EAGAIN)
#if (EAGAIN) != (EWOULDBLOCK)
/* On some platforms EAGAIN and EWOULDBLOCK are the
* same value, and on others they are different, hence
* the odd #if
*/
case EAGAIN:
#endif
#endif
result = CURLE_OK;
break;
default:
/* unknown error, fallthrough and try another address! */
infof(data, "Immediate connect fail for %s: %s",
ipaddress, Curl_strerror(error, buffer, sizeof(buffer)));
data->state.os_errno = error;
/* connect failed */
Curl_closesocket(data, conn, sockfd);
result = CURLE_COULDNT_CONNECT;
}
}
if(!result)
*sockp = sockfd;
return result;
}
/*
* TCP connect to the given host with timeout, proxy or remote doesn't matter.
* There might be more than one IP address to try out. Fill in the passed
* pointer with the connected socket.
*/
CURLcode Curl_connecthost(struct Curl_easy *data,
struct connectdata *conn, /* context */
const struct Curl_dns_entry *remotehost)
{
CURLcode result = CURLE_COULDNT_CONNECT;
int i;
timediff_t timeout_ms = Curl_timeleft(data, NULL, TRUE);
if(timeout_ms < 0) {
/* a precaution, no need to continue if time already is up */
failf(data, "Connection time-out");
return CURLE_OPERATION_TIMEDOUT;
}
conn->num_addr = Curl_num_addresses(remotehost->addr);
conn->tempaddr[0] = conn->tempaddr[1] = remotehost->addr;
conn->tempsock[0] = conn->tempsock[1] = CURL_SOCKET_BAD;
/* Max time for the next connection attempt */
conn->timeoutms_per_addr[0] =
conn->tempaddr[0]->ai_next == NULL ? timeout_ms : timeout_ms / 2;
conn->timeoutms_per_addr[1] =
conn->tempaddr[1]->ai_next == NULL ? timeout_ms : timeout_ms / 2;
if(conn->ip_version == CURL_IPRESOLVE_WHATEVER) {
/* any IP version is allowed */
conn->tempfamily[0] = conn->tempaddr[0]?
conn->tempaddr[0]->ai_family:0;
#ifdef ENABLE_IPV6
conn->tempfamily[1] = conn->tempfamily[0] == AF_INET6 ?
AF_INET : AF_INET6;
#else
conn->tempfamily[1] = AF_UNSPEC;
#endif
}
else {
/* only one IP version is allowed */
conn->tempfamily[0] = (conn->ip_version == CURL_IPRESOLVE_V4) ?
AF_INET :
#ifdef ENABLE_IPV6
AF_INET6;
#else
AF_UNSPEC;
#endif
conn->tempfamily[1] = AF_UNSPEC;
ainext(conn, 0, FALSE); /* find first address of the right type */
}
ainext(conn, 1, FALSE); /* assigns conn->tempaddr[1] accordingly */
DEBUGF(infof(data, "family0 == %s, family1 == %s",
conn->tempfamily[0] == AF_INET ? "v4" : "v6",
conn->tempfamily[1] == AF_INET ? "v4" : "v6"));
/* get through the list in family order in case of quick failures */
for(i = 0; (i < 2) && result; i++) {
while(conn->tempaddr[i]) {
result = singleipconnect(data, conn, conn->tempaddr[i], i);
if(!result)
break;
ainext(conn, i, TRUE);
}
}
if(result)
return result;
Curl_expire(data, data->set.happy_eyeballs_timeout,
EXPIRE_HAPPY_EYEBALLS);
return CURLE_OK;
}
struct connfind {
long id_tofind;
struct connectdata *found;
};
static int conn_is_conn(struct Curl_easy *data,
struct connectdata *conn, void *param)
{
struct connfind *f = (struct connfind *)param;
(void)data;
if(conn->connection_id == f->id_tofind) {
f->found = conn;
return 1;
}
return 0;
}
/*
* Used to extract socket and connectdata struct for the most recent
* transfer on the given Curl_easy.
*
* The returned socket will be CURL_SOCKET_BAD in case of failure!
*/
curl_socket_t Curl_getconnectinfo(struct Curl_easy *data,
struct connectdata **connp)
{
DEBUGASSERT(data);
/* this works for an easy handle:
* - that has been used for curl_easy_perform()
* - that is associated with a multi handle, and whose connection
* was detached with CURLOPT_CONNECT_ONLY
*/
if((data->state.lastconnect_id != -1) && (data->multi_easy || data->multi)) {
struct connectdata *c;
struct connfind find;
find.id_tofind = data->state.lastconnect_id;
find.found = NULL;
Curl_conncache_foreach(data, data->multi_easy?
&data->multi_easy->conn_cache:
&data->multi->conn_cache, &find, conn_is_conn);
if(!find.found) {
data->state.lastconnect_id = -1;
return CURL_SOCKET_BAD;
}
c = find.found;
if(connp)
/* only store this if the caller cares for it */
*connp = c;
return c->sock[FIRSTSOCKET];
}
return CURL_SOCKET_BAD;
}
/*
* Check if a connection seems to be alive.
*/
bool Curl_connalive(struct connectdata *conn)
{
/* First determine if ssl */
if(conn->ssl[FIRSTSOCKET].use) {
/* use the SSL context */
if(!Curl_ssl_check_cxn(conn))
return false; /* FIN received */
}
/* Minix 3.1 doesn't support any flags on recv; just assume socket is OK */
#ifdef MSG_PEEK
else if(conn->sock[FIRSTSOCKET] == CURL_SOCKET_BAD)
return false;
else {
/* use the socket */
char buf;
if(recv((RECV_TYPE_ARG1)conn->sock[FIRSTSOCKET], (RECV_TYPE_ARG2)&buf,
(RECV_TYPE_ARG3)1, (RECV_TYPE_ARG4)MSG_PEEK) == 0) {
return false; /* FIN received */
}
}
#endif
return true;
}
/*
* Close a socket.
*
* 'conn' can be NULL, beware!
*/
int Curl_closesocket(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sock)
{
if(conn && conn->fclosesocket) {
if((sock == conn->sock[SECONDARYSOCKET]) && conn->bits.sock_accepted)
/* if this socket matches the second socket, and that was created with
accept, then we MUST NOT call the callback but clear the accepted
status */
conn->bits.sock_accepted = FALSE;
else {
int rc;
Curl_multi_closed(data, sock);
Curl_set_in_callback(data, true);
rc = conn->fclosesocket(conn->closesocket_client, sock);
Curl_set_in_callback(data, false);
return rc;
}
}
if(conn)
/* tell the multi-socket code about this */
Curl_multi_closed(data, sock);
sclose(sock);
return 0;
}
/*
* Create a socket based on info from 'conn' and 'ai'.
*
* 'addr' should be a pointer to the correct struct to get data back, or NULL.
* 'sockfd' must be a pointer to a socket descriptor.
*
* If the open socket callback is set, used that!
*
*/
CURLcode Curl_socket(struct Curl_easy *data,
const struct Curl_addrinfo *ai,
struct Curl_sockaddr_ex *addr,
curl_socket_t *sockfd)
{
struct connectdata *conn = data->conn;
struct Curl_sockaddr_ex dummy;
if(!addr)
/* if the caller doesn't want info back, use a local temp copy */
addr = &dummy;
/*
* The Curl_sockaddr_ex structure is basically libcurl's external API
* curl_sockaddr structure with enough space available to directly hold
* any protocol-specific address structures. The variable declared here
* will be used to pass / receive data to/from the fopensocket callback
* if this has been set, before that, it is initialized from parameters.
*/
addr->family = ai->ai_family;
addr->socktype = (conn->transport == TRNSPRT_TCP) ? SOCK_STREAM : SOCK_DGRAM;
addr->protocol = conn->transport != TRNSPRT_TCP ? IPPROTO_UDP :
ai->ai_protocol;
addr->addrlen = ai->ai_addrlen;
if(addr->addrlen > sizeof(struct Curl_sockaddr_storage))
addr->addrlen = sizeof(struct Curl_sockaddr_storage);
memcpy(&addr->sa_addr, ai->ai_addr, addr->addrlen);
if(data->set.fopensocket) {
/*
* If the opensocket callback is set, all the destination address
* information is passed to the callback. Depending on this information the
* callback may opt to abort the connection, this is indicated returning
* CURL_SOCKET_BAD; otherwise it will return a not-connected socket. When
* the callback returns a valid socket the destination address information
* might have been changed and this 'new' address will actually be used
* here to connect.
*/
Curl_set_in_callback(data, true);
*sockfd = data->set.fopensocket(data->set.opensocket_client,
CURLSOCKTYPE_IPCXN,
(struct curl_sockaddr *)addr);
Curl_set_in_callback(data, false);
}
else
/* opensocket callback not set, so simply create the socket now */
*sockfd = socket(addr->family, addr->socktype, addr->protocol);
if(*sockfd == CURL_SOCKET_BAD)
/* no socket, no connection */
return CURLE_COULDNT_CONNECT;
if(conn->transport == TRNSPRT_QUIC) {
/* QUIC sockets need to be nonblocking */
(void)curlx_nonblock(*sockfd, TRUE);
}
#if defined(ENABLE_IPV6) && defined(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
if(conn->scope_id && (addr->family == AF_INET6)) {
struct sockaddr_in6 * const sa6 = (void *)&addr->sa_addr;
sa6->sin6_scope_id = conn->scope_id;
}
#endif
#if defined(__linux__) && defined(IP_RECVERR)
if(addr->socktype == SOCK_DGRAM) {
int one = 1;
switch(addr->family) {
case AF_INET:
(void)setsockopt(*sockfd, SOL_IP, IP_RECVERR, &one, sizeof(one));
break;
case AF_INET6:
(void)setsockopt(*sockfd, SOL_IPV6, IPV6_RECVERR, &one, sizeof(one));
break;
}
}
#endif
return CURLE_OK;
}
/*
* Curl_conncontrol() marks streams or connection for closure.
*/
void Curl_conncontrol(struct connectdata *conn,
int ctrl /* see defines in header */
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
, const char *reason
#endif
)
{
/* close if a connection, or a stream that isn't multiplexed. */
/* This function will be called both before and after this connection is
associated with a transfer. */
bool closeit;
DEBUGASSERT(conn);
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
(void)reason; /* useful for debugging */
#endif
closeit = (ctrl == CONNCTRL_CONNECTION) ||
((ctrl == CONNCTRL_STREAM) && !(conn->handler->flags & PROTOPT_STREAM));
if((ctrl == CONNCTRL_STREAM) &&
(conn->handler->flags & PROTOPT_STREAM))
;
else if((bit)closeit != conn->bits.close) {
conn->bits.close = closeit; /* the only place in the source code that
should assign this bit */
}
}
/* Data received can be cached at various levels, so check them all here. */
bool Curl_conn_data_pending(struct connectdata *conn, int sockindex)
{
int readable;
DEBUGASSERT(conn);
if(Curl_ssl_data_pending(conn, sockindex) ||
Curl_recv_has_postponed_data(conn, sockindex))
return true;
readable = SOCKET_READABLE(conn->sock[sockindex], 0);
return (readable > 0 && (readable & CURL_CSELECT_IN));
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http_ntlm.h | #ifndef HEADER_CURL_HTTP_NTLM_H
#define HEADER_CURL_HTTP_NTLM_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM)
/* this is for ntlm header input */
CURLcode Curl_input_ntlm(struct Curl_easy *data, bool proxy,
const char *header);
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm(struct Curl_easy *data, bool proxy);
void Curl_http_auth_cleanup_ntlm(struct connectdata *conn);
#else /* !CURL_DISABLE_HTTP && USE_NTLM */
#define Curl_http_auth_cleanup_ntlm(x)
#endif
#endif /* HEADER_CURL_HTTP_NTLM_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/sigpipe.h | #ifndef HEADER_CURL_SIGPIPE_H
#define HEADER_CURL_SIGPIPE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(HAVE_SIGNAL_H) && defined(HAVE_SIGACTION) && \
(defined(USE_OPENSSL) || defined(USE_MBEDTLS) || defined(USE_WOLFSSL))
#include <signal.h>
struct sigpipe_ignore {
struct sigaction old_pipe_act;
bool no_signal;
};
#define SIGPIPE_VARIABLE(x) struct sigpipe_ignore x
/*
* sigpipe_ignore() makes sure we ignore SIGPIPE while running libcurl
* internals, and then sigpipe_restore() will restore the situation when we
* return from libcurl again.
*/
static void sigpipe_ignore(struct Curl_easy *data,
struct sigpipe_ignore *ig)
{
/* get a local copy of no_signal because the Curl_easy might not be
around when we restore */
ig->no_signal = data->set.no_signal;
if(!data->set.no_signal) {
struct sigaction action;
/* first, extract the existing situation */
memset(&ig->old_pipe_act, 0, sizeof(struct sigaction));
sigaction(SIGPIPE, NULL, &ig->old_pipe_act);
action = ig->old_pipe_act;
/* ignore this signal */
action.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &action, NULL);
}
}
/*
* sigpipe_restore() puts back the outside world's opinion of signal handler
* and SIGPIPE handling. It MUST only be called after a corresponding
* sigpipe_ignore() was used.
*/
static void sigpipe_restore(struct sigpipe_ignore *ig)
{
if(!ig->no_signal)
/* restore the outside state */
sigaction(SIGPIPE, &ig->old_pipe_act, NULL);
}
#else
/* for systems without sigaction */
#define sigpipe_ignore(x,y) Curl_nop_stmt
#define sigpipe_restore(x) Curl_nop_stmt
#define SIGPIPE_VARIABLE(x)
#endif
#endif /* HEADER_CURL_SIGPIPE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/mk-ca-bundle.pl | #!/usr/bin/env perl
# ***************************************************************************
# * _ _ ____ _
# * Project ___| | | | _ \| |
# * / __| | | | |_) | |
# * | (__| |_| | _ <| |___
# * \___|\___/|_| \_\_____|
# *
# * Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
# *
# * This software is licensed as described in the file COPYING, which
# * you should have received as part of this distribution. The terms
# * are also available at https://curl.se/docs/copyright.html.
# *
# * You may opt to use, copy, modify, merge, publish, distribute and/or sell
# * copies of the Software, and permit persons to whom the Software is
# * furnished to do so, under the terms of the COPYING file.
# *
# * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# * KIND, either express or implied.
# *
# ***************************************************************************
# This Perl script creates a fresh ca-bundle.crt file for use with libcurl.
# It downloads certdata.txt from Mozilla's source tree (see URL below),
# then parses certdata.txt and extracts CA Root Certificates into PEM format.
# These are then processed with the OpenSSL commandline tool to produce the
# final ca-bundle.crt file.
# The script is based on the parse-certs script written by Roland Krikava.
# This Perl script works on almost any platform since its only external
# dependency is the OpenSSL commandline tool for optional text listing.
# Hacked by Guenter Knauf.
#
use Encode;
use Getopt::Std;
use MIME::Base64;
use strict;
use warnings;
use vars qw($opt_b $opt_d $opt_f $opt_h $opt_i $opt_k $opt_l $opt_m $opt_n $opt_p $opt_q $opt_s $opt_t $opt_u $opt_v $opt_w);
use List::Util;
use Text::Wrap;
use Time::Local;
my $MOD_SHA = "Digest::SHA";
eval "require $MOD_SHA";
if ($@) {
$MOD_SHA = "Digest::SHA::PurePerl";
eval "require $MOD_SHA";
}
eval "require LWP::UserAgent";
my %urls = (
'nss' =>
'https://hg.mozilla.org/projects/nss/raw-file/default/lib/ckfw/builtins/certdata.txt',
'central' =>
'https://hg.mozilla.org/mozilla-central/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
'beta' =>
'https://hg.mozilla.org/releases/mozilla-beta/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
'release' =>
'https://hg.mozilla.org/releases/mozilla-release/raw-file/default/security/nss/lib/ckfw/builtins/certdata.txt',
);
$opt_d = 'release';
# If the OpenSSL commandline is not in search path you can configure it here!
my $openssl = 'openssl';
my $version = '1.28';
$opt_w = 76; # default base64 encoded lines length
# default cert types to include in the output (default is to include CAs which may issue SSL server certs)
my $default_mozilla_trust_purposes = "SERVER_AUTH";
my $default_mozilla_trust_levels = "TRUSTED_DELEGATOR";
$opt_p = $default_mozilla_trust_purposes . ":" . $default_mozilla_trust_levels;
my @valid_mozilla_trust_purposes = (
"DIGITAL_SIGNATURE",
"NON_REPUDIATION",
"KEY_ENCIPHERMENT",
"DATA_ENCIPHERMENT",
"KEY_AGREEMENT",
"KEY_CERT_SIGN",
"CRL_SIGN",
"SERVER_AUTH",
"CLIENT_AUTH",
"CODE_SIGNING",
"EMAIL_PROTECTION",
"IPSEC_END_SYSTEM",
"IPSEC_TUNNEL",
"IPSEC_USER",
"TIME_STAMPING",
"STEP_UP_APPROVED"
);
my @valid_mozilla_trust_levels = (
"TRUSTED_DELEGATOR", # CAs
"NOT_TRUSTED", # Don't trust these certs.
"MUST_VERIFY_TRUST", # This explicitly tells us that it ISN'T a CA but is otherwise ok. In other words, this should tell the app to ignore any other sources that claim this is a CA.
"TRUSTED" # This cert is trusted, but only for itself and not for delegates (i.e. it is not a CA).
);
my $default_signature_algorithms = $opt_s = "MD5";
my @valid_signature_algorithms = (
"MD5",
"SHA1",
"SHA256",
"SHA384",
"SHA512"
);
$0 =~ s@.*(/|\\)@@;
$Getopt::Std::STANDARD_HELP_VERSION = 1;
getopts('bd:fhiklmnp:qs:tuvw:');
if(!defined($opt_d)) {
# to make plain "-d" use not cause warnings, and actually still work
$opt_d = 'release';
}
# Use predefined URL or else custom URL specified on command line.
my $url;
if(defined($urls{$opt_d})) {
$url = $urls{$opt_d};
if(!$opt_k && $url !~ /^https:\/\//i) {
die "The URL for '$opt_d' is not HTTPS. Use -k to override (insecure).\n";
}
}
else {
$url = $opt_d;
}
my $curl = `curl -V`;
if ($opt_i) {
print ("=" x 78 . "\n");
print "Script Version : $version\n";
print "Perl Version : $]\n";
print "Operating System Name : $^O\n";
print "Getopt::Std.pm Version : ${Getopt::Std::VERSION}\n";
print "Encode::Encoding.pm Version : ${Encode::Encoding::VERSION}\n";
print "MIME::Base64.pm Version : ${MIME::Base64::VERSION}\n";
print "LWP::UserAgent.pm Version : ${LWP::UserAgent::VERSION}\n" if($LWP::UserAgent::VERSION);
print "LWP.pm Version : ${LWP::VERSION}\n" if($LWP::VERSION);
print "Digest::SHA.pm Version : ${Digest::SHA::VERSION}\n" if ($Digest::SHA::VERSION);
print "Digest::SHA::PurePerl.pm Version : ${Digest::SHA::PurePerl::VERSION}\n" if ($Digest::SHA::PurePerl::VERSION);
print ("=" x 78 . "\n");
}
sub warning_message() {
if ( $opt_d =~ m/^risk$/i ) { # Long Form Warning and Exit
print "Warning: Use of this script may pose some risk:\n";
print "\n";
print " 1) If you use HTTP URLs they are subject to a man in the middle attack\n";
print " 2) Default to 'release', but more recent updates may be found in other trees\n";
print " 3) certdata.txt file format may change, lag time to update this script\n";
print " 4) Generally unwise to blindly trust CAs without manual review & verification\n";
print " 5) Mozilla apps use additional security checks aren't represented in certdata\n";
print " 6) Use of this script will make a security engineer grind his teeth and\n";
print " swear at you. ;)\n";
exit;
} else { # Short Form Warning
print "Warning: Use of this script may pose some risk, -d risk for more details.\n";
}
}
sub HELP_MESSAGE() {
print "Usage:\t${0} [-b] [-d<certdata>] [-f] [-i] [-k] [-l] [-n] [-p<purposes:levels>] [-q] [-s<algorithms>] [-t] [-u] [-v] [-w<l>] [<outputfile>]\n";
print "\t-b\tbackup an existing version of ca-bundle.crt\n";
print "\t-d\tspecify Mozilla tree to pull certdata.txt or custom URL\n";
print "\t\t Valid names are:\n";
print "\t\t ", join( ", ", map { ( $_ =~ m/$opt_d/ ) ? "$_ (default)" : "$_" } sort keys %urls ), "\n";
print "\t-f\tforce rebuild even if certdata.txt is current\n";
print "\t-i\tprint version info about used modules\n";
print "\t-k\tallow URLs other than HTTPS, enable HTTP fallback (insecure)\n";
print "\t-l\tprint license info about certdata.txt\n";
print "\t-m\tinclude meta data in output\n";
print "\t-n\tno download of certdata.txt (to use existing)\n";
print wrap("\t","\t\t", "-p\tlist of Mozilla trust purposes and levels for certificates to include in output. Takes the form of a comma separated list of purposes, a colon, and a comma separated list of levels. (default: $default_mozilla_trust_purposes:$default_mozilla_trust_levels)"), "\n";
print "\t\t Valid purposes are:\n";
print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_mozilla_trust_purposes ) ), "\n";
print "\t\t Valid levels are:\n";
print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_mozilla_trust_levels ) ), "\n";
print "\t-q\tbe really quiet (no progress output at all)\n";
print wrap("\t","\t\t", "-s\tcomma separated list of certificate signatures/hashes to output in plain text mode. (default: $default_signature_algorithms)\n");
print "\t\t Valid signature algorithms are:\n";
print wrap("\t\t ","\t\t ", join( ", ", "ALL", @valid_signature_algorithms ) ), "\n";
print "\t-t\tinclude plain text listing of certificates\n";
print "\t-u\tunlink (remove) certdata.txt after processing\n";
print "\t-v\tbe verbose and print out processed CAs\n";
print "\t-w <l>\twrap base64 output lines after <l> chars (default: ${opt_w})\n";
exit;
}
sub VERSION_MESSAGE() {
print "${0} version ${version} running Perl ${]} on ${^O}\n";
}
warning_message() unless ($opt_q || $url =~ m/^(ht|f)tps:/i );
HELP_MESSAGE() if ($opt_h);
sub report($@) {
my $output = shift;
print STDERR $output . "\n" unless $opt_q;
}
sub is_in_list($@) {
my $target = shift;
return defined(List::Util::first { $target eq $_ } @_);
}
# Parses $param_string as a case insensitive comma separated list with optional whitespace
# validates that only allowed parameters are supplied
sub parse_csv_param($$@) {
my $description = shift;
my $param_string = shift;
my @valid_values = @_;
my @values = map {
s/^\s+//; # strip leading spaces
s/\s+$//; # strip trailing spaces
uc $_ # return the modified string as upper case
} split( ',', $param_string );
# Find all values which are not in the list of valid values or "ALL"
my @invalid = grep { !is_in_list($_,"ALL",@valid_values) } @values;
if ( scalar(@invalid) > 0 ) {
# Tell the user which parameters were invalid and print the standard help message which will exit
print "Error: Invalid ", $description, scalar(@invalid) == 1 ? ": " : "s: ", join( ", ", map { "\"$_\"" } @invalid ), "\n";
HELP_MESSAGE();
}
@values = @valid_values if ( is_in_list("ALL",@values) );
return @values;
}
sub sha256 {
my $result;
if ($Digest::SHA::VERSION || $Digest::SHA::PurePerl::VERSION) {
open(FILE, $_[0]) or die "Can't open '$_[0]': $!";
binmode(FILE);
$result = $MOD_SHA->new(256)->addfile(*FILE)->hexdigest;
close(FILE);
} else {
# Use OpenSSL command if Perl Digest::SHA modules not available
$result = `"$openssl" dgst -r -sha256 "$_[0]"`;
$result =~ s/^([0-9a-f]{64}) .+/$1/is;
}
return $result;
}
sub oldhash {
my $hash = "";
open(C, "<$_[0]") || return 0;
while(<C>) {
chomp;
if($_ =~ /^\#\# SHA256: (.*)/) {
$hash = $1;
last;
}
}
close(C);
return $hash;
}
if ( $opt_p !~ m/:/ ) {
print "Error: Mozilla trust identifier list must include both purposes and levels\n";
HELP_MESSAGE();
}
(my $included_mozilla_trust_purposes_string, my $included_mozilla_trust_levels_string) = split( ':', $opt_p );
my @included_mozilla_trust_purposes = parse_csv_param( "trust purpose", $included_mozilla_trust_purposes_string, @valid_mozilla_trust_purposes );
my @included_mozilla_trust_levels = parse_csv_param( "trust level", $included_mozilla_trust_levels_string, @valid_mozilla_trust_levels );
my @included_signature_algorithms = parse_csv_param( "signature algorithm", $opt_s, @valid_signature_algorithms );
sub should_output_cert(%) {
my %trust_purposes_by_level = @_;
foreach my $level (@included_mozilla_trust_levels) {
# for each level we want to output, see if any of our desired purposes are included
return 1 if ( defined( List::Util::first { is_in_list( $_, @included_mozilla_trust_purposes ) } @{$trust_purposes_by_level{$level}} ) );
}
return 0;
}
my $crt = $ARGV[0] || 'ca-bundle.crt';
(my $txt = $url) =~ s@(.*/|\?.*)@@g;
my $stdout = $crt eq '-';
my $resp;
my $fetched;
my $oldhash = oldhash($crt);
report "SHA256 of old file: $oldhash";
if(!$opt_n) {
report "Downloading $txt ...";
# If we have an HTTPS URL then use curl
if($url =~ /^https:\/\//i) {
if($curl) {
if($curl =~ /^Protocols:.* https( |$)/m) {
report "Get certdata with curl!";
my $proto = !$opt_k ? "--proto =https" : "";
my $quiet = $opt_q ? "-s" : "";
my @out = `curl -w %{response_code} $proto $quiet -o "$txt" "$url"`;
if(!$? && @out && $out[0] == 200) {
$fetched = 1;
report "Downloaded $txt";
}
else {
report "Failed downloading via HTTPS with curl";
if(-e $txt && !unlink($txt)) {
report "Failed to remove '$txt': $!";
}
}
}
else {
report "curl lacks https support";
}
}
else {
report "curl not found";
}
}
# If nothing was fetched then use LWP
if(!$fetched) {
if($url =~ /^https:\/\//i) {
report "Falling back to HTTP";
$url =~ s/^https:\/\//http:\/\//i;
}
if(!$opt_k) {
report "URLs other than HTTPS are disabled by default, to enable use -k";
exit 1;
}
report "Get certdata with LWP!";
if(!defined(${LWP::UserAgent::VERSION})) {
report "LWP is not available (LWP::UserAgent not found)";
exit 1;
}
my $ua = new LWP::UserAgent(agent => "$0/$version");
$ua->env_proxy();
$resp = $ua->mirror($url, $txt);
if($resp && $resp->code eq '304') {
report "Not modified";
exit 0 if -e $crt && !$opt_f;
}
else {
$fetched = 1;
report "Downloaded $txt";
}
if(!$resp || $resp->code !~ /^(?:200|304)$/) {
report "Unable to download latest data: "
. ($resp? $resp->code . ' - ' . $resp->message : "LWP failed");
exit 1 if -e $crt || ! -r $txt;
}
}
}
my $filedate = $resp ? $resp->last_modified : (stat($txt))[9];
my $datesrc = "as of";
if(!$filedate) {
# mxr.mozilla.org gave us a time, hg.mozilla.org does not!
$filedate = time();
$datesrc="downloaded on";
}
# get the hash from the download file
my $newhash= sha256($txt);
if(!$opt_f && $oldhash eq $newhash) {
report "Downloaded file identical to previous run\'s source file. Exiting";
if($opt_u && -e $txt && !unlink($txt)) {
report "Failed to remove $txt: $!\n";
}
exit;
}
report "SHA256 of new file: $newhash";
my $currentdate = scalar gmtime($filedate);
my $format = $opt_t ? "plain text and " : "";
if( $stdout ) {
open(CRT, '> -') or die "Couldn't open STDOUT: $!\n";
} else {
open(CRT,">$crt.~") or die "Couldn't open $crt.~: $!\n";
}
print CRT <<EOT;
##
## Bundle of CA Root Certificates
##
## Certificate data from Mozilla ${datesrc}: ${currentdate} GMT
##
## This is a bundle of X.509 certificates of public Certificate Authorities
## (CA). These were automatically extracted from Mozilla's root certificates
## file (certdata.txt). This file can be found in the mozilla source tree:
## ${url}
##
## It contains the certificates in ${format}PEM format and therefore
## can be directly used with curl / libcurl / php_curl, or with
## an Apache+mod_ssl webserver for SSL client authentication.
## Just configure this file as the SSLCACertificateFile.
##
## Conversion done with mk-ca-bundle.pl version $version.
## SHA256: $newhash
##
EOT
report "Processing '$txt' ...";
my $caname;
my $certnum = 0;
my $skipnum = 0;
my $start_of_cert = 0;
my @precert;
my $cka_value;
my $valid = 1;
open(TXT,"$txt") or die "Couldn't open $txt: $!\n";
while (<TXT>) {
if (/\*\*\*\*\* BEGIN LICENSE BLOCK \*\*\*\*\*/) {
print CRT;
print if ($opt_l);
while (<TXT>) {
print CRT;
print if ($opt_l);
last if (/\*\*\*\*\* END LICENSE BLOCK \*\*\*\*\*/);
}
}
# Not Valid After : Thu Sep 30 14:01:15 2021
elsif(/^# Not Valid After : (.*)/) {
my $stamp = $1;
use Time::Piece;
my $t = Time::Piece->strptime
($stamp, "%a %b %d %H:%M:%S %Y");
my $delta = ($t->epoch - time()); # negative means no longer valid
if($delta < 0) {
$skipnum++;
report "Skipping: $caname is not valid anymore" if ($opt_v);
$valid = 0;
}
else {
$valid = 1;
}
next;
}
elsif(/^# (Issuer|Serial Number|Subject|Not Valid Before|Fingerprint \(MD5\)|Fingerprint \(SHA1\)):/) {
push @precert, $_;
next;
}
elsif(/^#|^\s*$/) {
undef @precert;
next;
}
chomp;
# Example:
# CKA_NSS_SERVER_DISTRUST_AFTER MULTILINE_OCTAL
# \062\060\060\066\061\067\060\060\060\060\060\060\132
# END
if (/^CKA_NSS_SERVER_DISTRUST_AFTER (CK_BBOOL CK_FALSE|MULTILINE_OCTAL)/) {
if($1 eq "MULTILINE_OCTAL") {
my @timestamp;
while (<TXT>) {
last if (/^END/);
chomp;
my @octets = split(/\\/);
shift @octets;
for (@octets) {
push @timestamp, chr(oct);
}
}
# A trailing Z in the timestamp signifies UTC
if($timestamp[12] ne "Z") {
report "distrust date stamp is not using UTC";
}
# Example date: 200617000000Z
# Means 2020-06-17 00:00:00 UTC
my $distrustat =
timegm($timestamp[10] . $timestamp[11], # second
$timestamp[8] . $timestamp[9], # minute
$timestamp[6] . $timestamp[7], # hour
$timestamp[4] . $timestamp[5], # day
($timestamp[2] . $timestamp[3]) - 1, # month
"20" . $timestamp[0] . $timestamp[1]); # year
if(time >= $distrustat) {
# not trusted anymore
$skipnum++;
report "Skipping: $caname is not trusted anymore" if ($opt_v);
$valid = 0;
}
else {
# still trusted
}
}
next;
}
# this is a match for the start of a certificate
if (/^CKA_CLASS CK_OBJECT_CLASS CKO_CERTIFICATE/) {
$start_of_cert = 1
}
if ($start_of_cert && /^CKA_LABEL UTF8 \"(.*)\"/) {
$caname = $1;
}
my %trust_purposes_by_level;
if ($start_of_cert && /^CKA_VALUE MULTILINE_OCTAL/) {
$cka_value="";
while (<TXT>) {
last if (/^END/);
chomp;
my @octets = split(/\\/);
shift @octets;
for (@octets) {
$cka_value .= chr(oct);
}
}
}
if(/^CKA_CLASS CK_OBJECT_CLASS CKO_NSS_TRUST/ && $valid) {
# now scan the trust part to determine how we should trust this cert
while (<TXT>) {
last if (/^#/);
if (/^CKA_TRUST_([A-Z_]+)\s+CK_TRUST\s+CKT_NSS_([A-Z_]+)\s*$/) {
if ( !is_in_list($1,@valid_mozilla_trust_purposes) ) {
report "Warning: Unrecognized trust purpose for cert: $caname. Trust purpose: $1. Trust Level: $2";
} elsif ( !is_in_list($2,@valid_mozilla_trust_levels) ) {
report "Warning: Unrecognized trust level for cert: $caname. Trust purpose: $1. Trust Level: $2";
} else {
push @{$trust_purposes_by_level{$2}}, $1;
}
}
}
if ( !should_output_cert(%trust_purposes_by_level) ) {
$skipnum ++;
report "Skipping: $caname" if ($opt_v);
} else {
my $data = $cka_value;
$cka_value = "";
if(!length($data)) {
# if empty, skip
next;
}
my $encoded = MIME::Base64::encode_base64($data, '');
$encoded =~ s/(.{1,${opt_w}})/$1\n/g;
my $pem = "-----BEGIN CERTIFICATE-----\n"
. $encoded
. "-----END CERTIFICATE-----\n";
print CRT "\n$caname\n";
print CRT @precert if($opt_m);
my $maxStringLength = length(decode('UTF-8', $caname, Encode::FB_CROAK | Encode::LEAVE_SRC));
if ($opt_t) {
foreach my $key (sort keys %trust_purposes_by_level) {
my $string = $key . ": " . join(", ", @{$trust_purposes_by_level{$key}});
$maxStringLength = List::Util::max( length($string), $maxStringLength );
print CRT $string . "\n";
}
}
print CRT ("=" x $maxStringLength . "\n");
if (!$opt_t) {
print CRT $pem;
} else {
my $pipe = "";
foreach my $hash (@included_signature_algorithms) {
$pipe = "|$openssl x509 -" . $hash . " -fingerprint -noout -inform PEM";
if (!$stdout) {
$pipe .= " >> $crt.~";
close(CRT) or die "Couldn't close $crt.~: $!";
}
open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
print TMP $pem;
close(TMP) or die "Couldn't close openssl pipe: $!";
if (!$stdout) {
open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
}
}
$pipe = "|$openssl x509 -text -inform PEM";
if (!$stdout) {
$pipe .= " >> $crt.~";
close(CRT) or die "Couldn't close $crt.~: $!";
}
open(TMP, $pipe) or die "Couldn't open openssl pipe: $!";
print TMP $pem;
close(TMP) or die "Couldn't close openssl pipe: $!";
if (!$stdout) {
open(CRT, ">>$crt.~") or die "Couldn't open $crt.~: $!";
}
}
report "Parsing: $caname" if ($opt_v);
$certnum ++;
$start_of_cert = 0;
}
undef @precert;
}
}
close(TXT) or die "Couldn't close $txt: $!\n";
close(CRT) or die "Couldn't close $crt.~: $!\n";
unless( $stdout ) {
if ($opt_b && -e $crt) {
my $bk = 1;
while (-e "$crt.~${bk}~") {
$bk++;
}
rename $crt, "$crt.~${bk}~" or die "Failed to create backup $crt.~$bk}~: $!\n";
} elsif( -e $crt ) {
unlink( $crt ) or die "Failed to remove $crt: $!\n";
}
rename "$crt.~", $crt or die "Failed to rename $crt.~ to $crt: $!\n";
}
if($opt_u && -e $txt && !unlink($txt)) {
report "Failed to remove $txt: $!\n";
}
report "Done ($certnum CA certs processed, $skipnum skipped).";
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/pingpong.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* 'pingpong' is for generic back-and-forth support functions used by FTP,
* IMAP, POP3, SMTP and whatever more that likes them.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
#include "sendf.h"
#include "select.h"
#include "progress.h"
#include "speedcheck.h"
#include "pingpong.h"
#include "multiif.h"
#include "non-ascii.h"
#include "vtls/vtls.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#ifdef USE_PINGPONG
/* Returns timeout in ms. 0 or negative number means the timeout has already
triggered */
timediff_t Curl_pp_state_timeout(struct Curl_easy *data,
struct pingpong *pp, bool disconnecting)
{
struct connectdata *conn = data->conn;
timediff_t timeout_ms; /* in milliseconds */
timediff_t response_time = (data->set.server_response_timeout)?
data->set.server_response_timeout: pp->response_time;
/* if CURLOPT_SERVER_RESPONSE_TIMEOUT is set, use that to determine
remaining time, or use pp->response because SERVER_RESPONSE_TIMEOUT is
supposed to govern the response for any given server response, not for
the time from connect to the given server response. */
/* Without a requested timeout, we only wait 'response_time' seconds for the
full response to arrive before we bail out */
timeout_ms = response_time -
Curl_timediff(Curl_now(), pp->response); /* spent time */
if(data->set.timeout && !disconnecting) {
/* if timeout is requested, find out how much remaining time we have */
timediff_t timeout2_ms = data->set.timeout - /* timeout time */
Curl_timediff(Curl_now(), conn->now); /* spent time */
/* pick the lowest number */
timeout_ms = CURLMIN(timeout_ms, timeout2_ms);
}
return timeout_ms;
}
/*
* Curl_pp_statemach()
*/
CURLcode Curl_pp_statemach(struct Curl_easy *data,
struct pingpong *pp, bool block,
bool disconnecting)
{
struct connectdata *conn = data->conn;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int rc;
timediff_t interval_ms;
timediff_t timeout_ms = Curl_pp_state_timeout(data, pp, disconnecting);
CURLcode result = CURLE_OK;
if(timeout_ms <= 0) {
failf(data, "server response timeout");
return CURLE_OPERATION_TIMEDOUT; /* already too little time */
}
if(block) {
interval_ms = 1000; /* use 1 second timeout intervals */
if(timeout_ms < interval_ms)
interval_ms = timeout_ms;
}
else
interval_ms = 0; /* immediate */
if(Curl_ssl_data_pending(conn, FIRSTSOCKET))
rc = 1;
else if(Curl_pp_moredata(pp))
/* We are receiving and there is data in the cache so just read it */
rc = 1;
else if(!pp->sendleft && Curl_ssl_data_pending(conn, FIRSTSOCKET))
/* We are receiving and there is data ready in the SSL library */
rc = 1;
else
rc = Curl_socket_check(pp->sendleft?CURL_SOCKET_BAD:sock, /* reading */
CURL_SOCKET_BAD,
pp->sendleft?sock:CURL_SOCKET_BAD, /* writing */
interval_ms);
if(block) {
/* if we didn't wait, we don't have to spend time on this now */
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
if(result)
return result;
}
if(rc == -1) {
failf(data, "select/poll error");
result = CURLE_OUT_OF_MEMORY;
}
else if(rc)
result = pp->statemachine(data, data->conn);
return result;
}
/* initialize stuff to prepare for reading a fresh new response */
void Curl_pp_init(struct Curl_easy *data, struct pingpong *pp)
{
DEBUGASSERT(data);
pp->nread_resp = 0;
pp->linestart_resp = data->state.buffer;
pp->pending_resp = TRUE;
pp->response = Curl_now(); /* start response time-out now! */
}
/* setup for the coming transfer */
void Curl_pp_setup(struct pingpong *pp)
{
Curl_dyn_init(&pp->sendbuf, DYN_PINGPPONG_CMD);
}
/***********************************************************************
*
* Curl_pp_vsendf()
*
* Send the formatted string as a command to a pingpong server. Note that
* the string should not have any CRLF appended, as this function will
* append the necessary things itself.
*
* made to never block
*/
CURLcode Curl_pp_vsendf(struct Curl_easy *data,
struct pingpong *pp,
const char *fmt,
va_list args)
{
ssize_t bytes_written = 0;
size_t write_len;
char *s;
CURLcode result;
struct connectdata *conn = data->conn;
#ifdef HAVE_GSSAPI
enum protection_level data_sec;
#endif
DEBUGASSERT(pp->sendleft == 0);
DEBUGASSERT(pp->sendsize == 0);
DEBUGASSERT(pp->sendthis == NULL);
if(!conn)
/* can't send without a connection! */
return CURLE_SEND_ERROR;
Curl_dyn_reset(&pp->sendbuf);
result = Curl_dyn_vaddf(&pp->sendbuf, fmt, args);
if(result)
return result;
/* append CRLF */
result = Curl_dyn_addn(&pp->sendbuf, "\r\n", 2);
if(result)
return result;
write_len = Curl_dyn_len(&pp->sendbuf);
s = Curl_dyn_ptr(&pp->sendbuf);
Curl_pp_init(data, pp);
result = Curl_convert_to_network(data, s, write_len);
/* Curl_convert_to_network calls failf if unsuccessful */
if(result)
return result;
#ifdef HAVE_GSSAPI
conn->data_prot = PROT_CMD;
#endif
result = Curl_write(data, conn->sock[FIRSTSOCKET], s, write_len,
&bytes_written);
if(result)
return result;
#ifdef HAVE_GSSAPI
data_sec = conn->data_prot;
DEBUGASSERT(data_sec > PROT_NONE && data_sec < PROT_LAST);
conn->data_prot = data_sec;
#endif
Curl_debug(data, CURLINFO_HEADER_OUT, s, (size_t)bytes_written);
if(bytes_written != (ssize_t)write_len) {
/* the whole chunk was not sent, keep it around and adjust sizes */
pp->sendthis = s;
pp->sendsize = write_len;
pp->sendleft = write_len - bytes_written;
}
else {
pp->sendthis = NULL;
pp->sendleft = pp->sendsize = 0;
pp->response = Curl_now();
}
return CURLE_OK;
}
/***********************************************************************
*
* Curl_pp_sendf()
*
* Send the formatted string as a command to a pingpong server. Note that
* the string should not have any CRLF appended, as this function will
* append the necessary things itself.
*
* made to never block
*/
CURLcode Curl_pp_sendf(struct Curl_easy *data, struct pingpong *pp,
const char *fmt, ...)
{
CURLcode result;
va_list ap;
va_start(ap, fmt);
result = Curl_pp_vsendf(data, pp, fmt, ap);
va_end(ap);
return result;
}
/*
* Curl_pp_readresp()
*
* Reads a piece of a server response.
*/
CURLcode Curl_pp_readresp(struct Curl_easy *data,
curl_socket_t sockfd,
struct pingpong *pp,
int *code, /* return the server code if done */
size_t *size) /* size of the response */
{
ssize_t perline; /* count bytes per line */
bool keepon = TRUE;
ssize_t gotbytes;
char *ptr;
struct connectdata *conn = data->conn;
char * const buf = data->state.buffer;
CURLcode result = CURLE_OK;
*code = 0; /* 0 for errors or not done */
*size = 0;
ptr = buf + pp->nread_resp;
/* number of bytes in the current line, so far */
perline = (ssize_t)(ptr-pp->linestart_resp);
while((pp->nread_resp < (size_t)data->set.buffer_size) &&
(keepon && !result)) {
if(pp->cache) {
/* we had data in the "cache", copy that instead of doing an actual
* read
*
* pp->cache_size is cast to ssize_t here. This should be safe, because
* it would have been populated with something of size int to begin
* with, even though its datatype may be larger than an int.
*/
if((ptr + pp->cache_size) > (buf + data->set.buffer_size + 1)) {
failf(data, "cached response data too big to handle");
return CURLE_RECV_ERROR;
}
memcpy(ptr, pp->cache, pp->cache_size);
gotbytes = (ssize_t)pp->cache_size;
free(pp->cache); /* free the cache */
pp->cache = NULL; /* clear the pointer */
pp->cache_size = 0; /* zero the size just in case */
}
else {
#ifdef HAVE_GSSAPI
enum protection_level prot = conn->data_prot;
conn->data_prot = PROT_CLEAR;
#endif
DEBUGASSERT((ptr + data->set.buffer_size - pp->nread_resp) <=
(buf + data->set.buffer_size + 1));
result = Curl_read(data, sockfd, ptr,
data->set.buffer_size - pp->nread_resp,
&gotbytes);
#ifdef HAVE_GSSAPI
DEBUGASSERT(prot > PROT_NONE && prot < PROT_LAST);
conn->data_prot = prot;
#endif
if(result == CURLE_AGAIN)
return CURLE_OK; /* return */
if(!result && (gotbytes > 0))
/* convert from the network encoding */
result = Curl_convert_from_network(data, ptr, gotbytes);
/* Curl_convert_from_network calls failf if unsuccessful */
if(result)
/* Set outer result variable to this error. */
keepon = FALSE;
}
if(!keepon)
;
else if(gotbytes <= 0) {
keepon = FALSE;
result = CURLE_RECV_ERROR;
failf(data, "response reading failed");
}
else {
/* we got a whole chunk of data, which can be anything from one
* byte to a set of lines and possible just a piece of the last
* line */
ssize_t i;
ssize_t clipamount = 0;
bool restart = FALSE;
data->req.headerbytecount += (long)gotbytes;
pp->nread_resp += gotbytes;
for(i = 0; i < gotbytes; ptr++, i++) {
perline++;
if(*ptr == '\n') {
/* a newline is CRLF in pp-talk, so the CR is ignored as
the line isn't really terminated until the LF comes */
/* output debug output if that is requested */
#ifdef HAVE_GSSAPI
if(!conn->sec_complete)
#endif
Curl_debug(data, CURLINFO_HEADER_IN,
pp->linestart_resp, (size_t)perline);
/*
* We pass all response-lines to the callback function registered
* for "headers". The response lines can be seen as a kind of
* headers.
*/
result = Curl_client_write(data, CLIENTWRITE_HEADER,
pp->linestart_resp, perline);
if(result)
return result;
if(pp->endofresp(data, conn, pp->linestart_resp, perline, code)) {
/* This is the end of the last line, copy the last line to the
start of the buffer and null-terminate, for old times sake */
size_t n = ptr - pp->linestart_resp;
memmove(buf, pp->linestart_resp, n);
buf[n] = 0; /* null-terminate */
keepon = FALSE;
pp->linestart_resp = ptr + 1; /* advance pointer */
i++; /* skip this before getting out */
*size = pp->nread_resp; /* size of the response */
pp->nread_resp = 0; /* restart */
break;
}
perline = 0; /* line starts over here */
pp->linestart_resp = ptr + 1;
}
}
if(!keepon && (i != gotbytes)) {
/* We found the end of the response lines, but we didn't parse the
full chunk of data we have read from the server. We therefore need
to store the rest of the data to be checked on the next invoke as
it may actually contain another end of response already! */
clipamount = gotbytes - i;
restart = TRUE;
DEBUGF(infof(data, "Curl_pp_readresp_ %d bytes of trailing "
"server response left",
(int)clipamount));
}
else if(keepon) {
if((perline == gotbytes) && (gotbytes > data->set.buffer_size/2)) {
/* We got an excessive line without newlines and we need to deal
with it. We keep the first bytes of the line then we throw
away the rest. */
infof(data, "Excessive server response line length received, "
"%zd bytes. Stripping", gotbytes);
restart = TRUE;
/* we keep 40 bytes since all our pingpong protocols are only
interested in the first piece */
clipamount = 40;
}
else if(pp->nread_resp > (size_t)data->set.buffer_size/2) {
/* We got a large chunk of data and there's potentially still
trailing data to take care of, so we put any such part in the
"cache", clear the buffer to make space and restart. */
clipamount = perline;
restart = TRUE;
}
}
else if(i == gotbytes)
restart = TRUE;
if(clipamount) {
pp->cache_size = clipamount;
pp->cache = malloc(pp->cache_size);
if(pp->cache)
memcpy(pp->cache, pp->linestart_resp, pp->cache_size);
else
return CURLE_OUT_OF_MEMORY;
}
if(restart) {
/* now reset a few variables to start over nicely from the start of
the big buffer */
pp->nread_resp = 0; /* start over from scratch in the buffer */
ptr = pp->linestart_resp = buf;
perline = 0;
}
} /* there was data */
} /* while there's buffer left and loop is requested */
pp->pending_resp = FALSE;
return result;
}
int Curl_pp_getsock(struct Curl_easy *data,
struct pingpong *pp, curl_socket_t *socks)
{
struct connectdata *conn = data->conn;
socks[0] = conn->sock[FIRSTSOCKET];
if(pp->sendleft) {
/* write mode */
return GETSOCK_WRITESOCK(0);
}
/* read mode */
return GETSOCK_READSOCK(0);
}
CURLcode Curl_pp_flushsend(struct Curl_easy *data,
struct pingpong *pp)
{
/* we have a piece of a command still left to send */
struct connectdata *conn = data->conn;
ssize_t written;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
CURLcode result = Curl_write(data, sock, pp->sendthis + pp->sendsize -
pp->sendleft, pp->sendleft, &written);
if(result)
return result;
if(written != (ssize_t)pp->sendleft) {
/* only a fraction was sent */
pp->sendleft -= written;
}
else {
pp->sendthis = NULL;
pp->sendleft = pp->sendsize = 0;
pp->response = Curl_now();
}
return CURLE_OK;
}
CURLcode Curl_pp_disconnect(struct pingpong *pp)
{
Curl_dyn_free(&pp->sendbuf);
Curl_safefree(pp->cache);
return CURLE_OK;
}
bool Curl_pp_moredata(struct pingpong *pp)
{
return (!pp->sendleft && pp->cache && pp->nread_resp < pp->cache_size) ?
TRUE : FALSE;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_gssapi.h | #ifndef HEADER_CURL_GSSAPI_H
#define HEADER_CURL_GSSAPI_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2011 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
#ifdef HAVE_GSSAPI
extern gss_OID_desc Curl_spnego_mech_oid;
extern gss_OID_desc Curl_krb5_mech_oid;
/* Common method for using GSS-API */
OM_uint32 Curl_gss_init_sec_context(
struct Curl_easy *data,
OM_uint32 *minor_status,
gss_ctx_id_t *context,
gss_name_t target_name,
gss_OID mech_type,
gss_channel_bindings_t input_chan_bindings,
gss_buffer_t input_token,
gss_buffer_t output_token,
const bool mutual_auth,
OM_uint32 *ret_flags);
/* Helper to log a GSS-API error status */
void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
OM_uint32 major, OM_uint32 minor);
/* Provide some definitions missing in old headers */
#ifdef HAVE_OLD_GSSMIT
#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
#define NCOMPAT 1
#endif
/* Define our privacy and integrity protection values */
#define GSSAUTH_P_NONE 1
#define GSSAUTH_P_INTEGRITY 2
#define GSSAUTH_P_PRIVACY 4
#endif /* HAVE_GSSAPI */
#endif /* HEADER_CURL_GSSAPI_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/speedcheck.h | #ifndef HEADER_CURL_SPEEDCHECK_H
#define HEADER_CURL_SPEEDCHECK_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "timeval.h"
void Curl_speedinit(struct Curl_easy *data);
CURLcode Curl_speedcheck(struct Curl_easy *data,
struct curltime now);
#endif /* HEADER_CURL_SPEEDCHECK_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/url.h | #ifndef HEADER_CURL_URL_H
#define HEADER_CURL_URL_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/*
* Prototypes for library-wide functions provided by url.c
*/
CURLcode Curl_init_do(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_open(struct Curl_easy **curl);
CURLcode Curl_init_userdefined(struct Curl_easy *data);
void Curl_freeset(struct Curl_easy *data);
CURLcode Curl_uc_to_curlcode(CURLUcode uc);
CURLcode Curl_close(struct Curl_easy **datap); /* opposite of curl_open() */
CURLcode Curl_connect(struct Curl_easy *, bool *async, bool *protocol_connect);
CURLcode Curl_disconnect(struct Curl_easy *data,
struct connectdata *, bool dead_connection);
CURLcode Curl_setup_conn(struct Curl_easy *data,
bool *protocol_done);
void Curl_free_request_state(struct Curl_easy *data);
CURLcode Curl_parse_login_details(const char *login, const size_t len,
char **userptr, char **passwdptr,
char **optionsptr);
const struct Curl_handler *Curl_builtin_scheme(const char *scheme);
bool Curl_is_ASCII_name(const char *hostname);
CURLcode Curl_idnconvert_hostname(struct Curl_easy *data,
struct hostname *host);
void Curl_free_idnconverted_hostname(struct hostname *host);
#define CURL_DEFAULT_PROXY_PORT 1080 /* default proxy port unless specified */
#define CURL_DEFAULT_HTTPS_PROXY_PORT 443 /* default https proxy port unless
specified */
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define Curl_verboseconnect(x,y) Curl_nop_stmt
#else
void Curl_verboseconnect(struct Curl_easy *data, struct connectdata *conn);
#endif
#ifdef CURL_DISABLE_PROXY
#define CONNECT_PROXY_SSL() FALSE
#else
#define CONNECT_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[sockindex])
#define CONNECT_FIRSTSOCKET_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[FIRSTSOCKET])
#define CONNECT_SECONDARYSOCKET_PROXY_SSL()\
(conn->http_proxy.proxytype == CURLPROXY_HTTPS &&\
!conn->bits.proxy_ssl_connected[SECONDARYSOCKET])
#endif /* !CURL_DISABLE_PROXY */
#endif /* HEADER_CURL_URL_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_multibyte.h | #ifndef HEADER_CURL_MULTIBYTE_H
#define HEADER_CURL_MULTIBYTE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(WIN32)
/*
* MultiByte conversions using Windows kernel32 library.
*/
wchar_t *curlx_convert_UTF8_to_wchar(const char *str_utf8);
char *curlx_convert_wchar_to_UTF8(const wchar_t *str_w);
#endif /* WIN32 */
/*
* Macros curlx_convert_UTF8_to_tchar(), curlx_convert_tchar_to_UTF8()
* and curlx_unicodefree() main purpose is to minimize the number of
* preprocessor conditional directives needed by code using these
* to differentiate UNICODE from non-UNICODE builds.
*
* In the case of a non-UNICODE build the tchar strings are char strings that
* are duplicated via strdup and remain in whatever the passed in encoding is,
* which is assumed to be UTF-8 but may be other encoding. Therefore the
* significance of the conversion functions is primarily for UNICODE builds.
*
* Allocated memory should be free'd with curlx_unicodefree().
*
* Note: Because these are curlx functions their memory usage is not tracked
* by the curl memory tracker memdebug. You'll notice that curlx function-like
* macros call free and strdup in parentheses, eg (strdup)(ptr), and that's to
* ensure that the curl memdebug override macros do not replace them.
*/
#if defined(UNICODE) && defined(WIN32)
#define curlx_convert_UTF8_to_tchar(ptr) curlx_convert_UTF8_to_wchar((ptr))
#define curlx_convert_tchar_to_UTF8(ptr) curlx_convert_wchar_to_UTF8((ptr))
typedef union {
unsigned short *tchar_ptr;
const unsigned short *const_tchar_ptr;
unsigned short *tbyte_ptr;
const unsigned short *const_tbyte_ptr;
} xcharp_u;
#else
#define curlx_convert_UTF8_to_tchar(ptr) (strdup)(ptr)
#define curlx_convert_tchar_to_UTF8(ptr) (strdup)(ptr)
typedef union {
char *tchar_ptr;
const char *const_tchar_ptr;
unsigned char *tbyte_ptr;
const unsigned char *const_tbyte_ptr;
} xcharp_u;
#endif /* UNICODE && WIN32 */
#define curlx_unicodefree(ptr) \
do { \
if(ptr) { \
(free)(ptr); \
(ptr) = NULL; \
} \
} while(0)
#endif /* HEADER_CURL_MULTIBYTE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_memory.h | #ifndef HEADER_CURL_MEMORY_H
#define HEADER_CURL_MEMORY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Nasty internal details ahead...
*
* File curl_memory.h must be included by _all_ *.c source files
* that use memory related functions strdup, malloc, calloc, realloc
* or free, and given source file is used to build libcurl library.
* It should be included immediately before memdebug.h as the last files
* included to avoid undesired interaction with other memory function
* headers in dependent libraries.
*
* There is nearly no exception to above rule. All libcurl source
* files in 'lib' subdirectory as well as those living deep inside
* 'packages' subdirectories and linked together in order to build
* libcurl library shall follow it.
*
* File lib/strdup.c is an exception, given that it provides a strdup
* clone implementation while using malloc. Extra care needed inside
* this one.
*
* The need for curl_memory.h inclusion is due to libcurl's feature
* of allowing library user to provide memory replacement functions,
* memory callbacks, at runtime with curl_global_init_mem()
*
* Any *.c source file used to build libcurl library that does not
* include curl_memory.h and uses any memory function of the five
* mentioned above will compile without any indication, but it will
* trigger weird memory related issues at runtime.
*
* OTOH some source files from 'lib' subdirectory may additionally be
* used directly as source code when using some curlx_ functions by
* third party programs that don't even use libcurl at all. When using
* these source files in this way it is necessary these are compiled
* with CURLX_NO_MEMORY_CALLBACKS defined, in order to ensure that no
* attempt of calling libcurl's memory callbacks is done from code
* which can not use this machinery.
*
* Notice that libcurl's 'memory tracking' system works chaining into
* the memory callback machinery. This implies that when compiling
* 'lib' source files with CURLX_NO_MEMORY_CALLBACKS defined this file
* disengages usage of libcurl's 'memory tracking' system, defining
* MEMDEBUG_NODEFINES and overriding CURLDEBUG purpose.
*
* CURLX_NO_MEMORY_CALLBACKS takes precedence over CURLDEBUG. This is
* done in order to allow building a 'memory tracking' enabled libcurl
* and at the same time allow building programs which do not use it.
*
* Programs and libraries in 'tests' subdirectories have specific
* purposes and needs, and as such each one will use whatever fits
* best, depending additionally whether it links with libcurl or not.
*
* Caveat emptor. Proper curlx_* separation is a work in progress
* the same as CURLX_NO_MEMORY_CALLBACKS usage, some adjustments may
* still be required. IOW don't use them yet, there are sharp edges.
*/
#ifdef HEADER_CURL_MEMDEBUG_H
#error "Header memdebug.h shall not be included before curl_memory.h"
#endif
#ifndef CURLX_NO_MEMORY_CALLBACKS
#ifndef CURL_DID_MEMORY_FUNC_TYPEDEFS /* only if not already done */
/*
* The following memory function replacement typedef's are COPIED from
* curl/curl.h and MUST match the originals. We copy them to avoid having to
* include curl/curl.h here. We avoid that include since it includes stdio.h
* and other headers that may get messed up with defines done here.
*/
typedef void *(*curl_malloc_callback)(size_t size);
typedef void (*curl_free_callback)(void *ptr);
typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
typedef char *(*curl_strdup_callback)(const char *str);
typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
#define CURL_DID_MEMORY_FUNC_TYPEDEFS
#endif
extern curl_malloc_callback Curl_cmalloc;
extern curl_free_callback Curl_cfree;
extern curl_realloc_callback Curl_crealloc;
extern curl_strdup_callback Curl_cstrdup;
extern curl_calloc_callback Curl_ccalloc;
#if defined(WIN32) && defined(UNICODE)
extern curl_wcsdup_callback Curl_cwcsdup;
#endif
#ifndef CURLDEBUG
/*
* libcurl's 'memory tracking' system defines strdup, malloc, calloc,
* realloc and free, along with others, in memdebug.h in a different
* way although still using memory callbacks forward declared above.
* When using the 'memory tracking' system (CURLDEBUG defined) we do
* not define here the five memory functions given that definitions
* from memdebug.h are the ones that shall be used.
*/
#undef strdup
#define strdup(ptr) Curl_cstrdup(ptr)
#undef malloc
#define malloc(size) Curl_cmalloc(size)
#undef calloc
#define calloc(nbelem,size) Curl_ccalloc(nbelem, size)
#undef realloc
#define realloc(ptr,size) Curl_crealloc(ptr, size)
#undef free
#define free(ptr) Curl_cfree(ptr)
#ifdef WIN32
# ifdef UNICODE
# undef wcsdup
# define wcsdup(ptr) Curl_cwcsdup(ptr)
# undef _wcsdup
# define _wcsdup(ptr) Curl_cwcsdup(ptr)
# undef _tcsdup
# define _tcsdup(ptr) Curl_cwcsdup(ptr)
# else
# undef _tcsdup
# define _tcsdup(ptr) Curl_cstrdup(ptr)
# endif
#endif
#endif /* CURLDEBUG */
#else /* CURLX_NO_MEMORY_CALLBACKS */
#ifndef MEMDEBUG_NODEFINES
#define MEMDEBUG_NODEFINES
#endif
#endif /* CURLX_NO_MEMORY_CALLBACKS */
#endif /* HEADER_CURL_MEMORY_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/amigaos.h | #ifndef HEADER_CURL_AMIGAOS_H
#define HEADER_CURL_AMIGAOS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(__AMIGA__) && defined(HAVE_BSDSOCKET_H) && !defined(USE_AMISSL)
bool Curl_amiga_init();
void Curl_amiga_cleanup();
#else
#define Curl_amiga_init() 1
#define Curl_amiga_cleanup() Curl_nop_stmt
#endif
#ifdef USE_AMISSL
#include <openssl/x509v3.h>
void Curl_amiga_X509_free(X509 *a);
#endif /* USE_AMISSL */
#endif /* HEADER_CURL_AMIGAOS_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/if2ip.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
# include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_IFADDRS_H
# include <ifaddrs.h>
#endif
#ifdef HAVE_STROPTS_H
# include <stropts.h>
#endif
#ifdef __VMS
# include <inet.h>
#endif
#include "inet_ntop.h"
#include "strcase.h"
#include "if2ip.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* ------------------------------------------------------------------ */
/* Return the scope of the given address. */
unsigned int Curl_ipv6_scope(const struct sockaddr *sa)
{
#ifndef ENABLE_IPV6
(void) sa;
#else
if(sa->sa_family == AF_INET6) {
const struct sockaddr_in6 * sa6 = (const struct sockaddr_in6 *)(void *) sa;
const unsigned char *b = sa6->sin6_addr.s6_addr;
unsigned short w = (unsigned short) ((b[0] << 8) | b[1]);
if((b[0] & 0xFE) == 0xFC) /* Handle ULAs */
return IPV6_SCOPE_UNIQUELOCAL;
switch(w & 0xFFC0) {
case 0xFE80:
return IPV6_SCOPE_LINKLOCAL;
case 0xFEC0:
return IPV6_SCOPE_SITELOCAL;
case 0x0000:
w = b[1] | b[2] | b[3] | b[4] | b[5] | b[6] | b[7] | b[8] | b[9] |
b[10] | b[11] | b[12] | b[13] | b[14];
if(w || b[15] != 0x01)
break;
return IPV6_SCOPE_NODELOCAL;
default:
break;
}
}
#endif
return IPV6_SCOPE_GLOBAL;
}
#if defined(HAVE_GETIFADDRS)
if2ip_result_t Curl_if2ip(int af, unsigned int remote_scope,
unsigned int local_scope_id, const char *interf,
char *buf, int buf_size)
{
struct ifaddrs *iface, *head;
if2ip_result_t res = IF2IP_NOT_FOUND;
#ifndef ENABLE_IPV6
(void) remote_scope;
#endif
#if !defined(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID) || \
!defined(ENABLE_IPV6)
(void) local_scope_id;
#endif
if(getifaddrs(&head) >= 0) {
for(iface = head; iface != NULL; iface = iface->ifa_next) {
if(iface->ifa_addr != NULL) {
if(iface->ifa_addr->sa_family == af) {
if(strcasecompare(iface->ifa_name, interf)) {
void *addr;
const char *ip;
char scope[12] = "";
char ipstr[64];
#ifdef ENABLE_IPV6
if(af == AF_INET6) {
#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
unsigned int scopeid = 0;
#endif
unsigned int ifscope = Curl_ipv6_scope(iface->ifa_addr);
if(ifscope != remote_scope) {
/* We are interested only in interface addresses whose scope
matches the remote address we want to connect to: global
for global, link-local for link-local, etc... */
if(res == IF2IP_NOT_FOUND)
res = IF2IP_AF_NOT_SUPPORTED;
continue;
}
addr =
&((struct sockaddr_in6 *)(void *)iface->ifa_addr)->sin6_addr;
#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
/* Include the scope of this interface as part of the address */
scopeid = ((struct sockaddr_in6 *)(void *)iface->ifa_addr)
->sin6_scope_id;
/* If given, scope id should match. */
if(local_scope_id && scopeid != local_scope_id) {
if(res == IF2IP_NOT_FOUND)
res = IF2IP_AF_NOT_SUPPORTED;
continue;
}
if(scopeid)
msnprintf(scope, sizeof(scope), "%%%u", scopeid);
#endif
}
else
#endif
addr =
&((struct sockaddr_in *)(void *)iface->ifa_addr)->sin_addr;
res = IF2IP_FOUND;
ip = Curl_inet_ntop(af, addr, ipstr, sizeof(ipstr));
msnprintf(buf, buf_size, "%s%s", ip, scope);
break;
}
}
else if((res == IF2IP_NOT_FOUND) &&
strcasecompare(iface->ifa_name, interf)) {
res = IF2IP_AF_NOT_SUPPORTED;
}
}
}
freeifaddrs(head);
}
return res;
}
#elif defined(HAVE_IOCTL_SIOCGIFADDR)
if2ip_result_t Curl_if2ip(int af, unsigned int remote_scope,
unsigned int local_scope_id, const char *interf,
char *buf, int buf_size)
{
struct ifreq req;
struct in_addr in;
struct sockaddr_in *s;
curl_socket_t dummy;
size_t len;
const char *r;
(void)remote_scope;
(void)local_scope_id;
if(!interf || (af != AF_INET))
return IF2IP_NOT_FOUND;
len = strlen(interf);
if(len >= sizeof(req.ifr_name))
return IF2IP_NOT_FOUND;
dummy = socket(AF_INET, SOCK_STREAM, 0);
if(CURL_SOCKET_BAD == dummy)
return IF2IP_NOT_FOUND;
memset(&req, 0, sizeof(req));
memcpy(req.ifr_name, interf, len + 1);
req.ifr_addr.sa_family = AF_INET;
if(ioctl(dummy, SIOCGIFADDR, &req) < 0) {
sclose(dummy);
/* With SIOCGIFADDR, we cannot tell the difference between an interface
that does not exist and an interface that has no address of the
correct family. Assume the interface does not exist */
return IF2IP_NOT_FOUND;
}
s = (struct sockaddr_in *)(void *)&req.ifr_addr;
memcpy(&in, &s->sin_addr, sizeof(in));
r = Curl_inet_ntop(s->sin_family, &in, buf, buf_size);
sclose(dummy);
if(!r)
return IF2IP_NOT_FOUND;
return IF2IP_FOUND;
}
#else
if2ip_result_t Curl_if2ip(int af, unsigned int remote_scope,
unsigned int local_scope_id, const char *interf,
char *buf, int buf_size)
{
(void) af;
(void) remote_scope;
(void) local_scope_id;
(void) interf;
(void) buf;
(void) buf_size;
return IF2IP_NOT_FOUND;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_md4.h | #ifndef HEADER_CURL_MD4_H
#define HEADER_CURL_MD4_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_CRYPTO_AUTH)
#define MD4_DIGEST_LENGTH 16
void Curl_md4it(unsigned char *output, const unsigned char *input,
const size_t len);
#endif /* !defined(CURL_DISABLE_CRYPTO_AUTH) */
#endif /* HEADER_CURL_MD4_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/smb.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2016 - 2021, Daniel Stenberg, <[email protected]>, et al.
* Copyright (C) 2014, Bill Nagel <[email protected]>, Exacq Technologies
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \
(SIZEOF_CURL_OFF_T > 4)
#define BUILDING_CURL_SMB_C
#ifdef HAVE_PROCESS_H
#include <process.h>
#ifdef CURL_WINDOWS_APP
#define getpid GetCurrentProcessId
#elif !defined(MSDOS)
#define getpid _getpid
#endif
#endif
#include "smb.h"
#include "urldata.h"
#include "sendf.h"
#include "multiif.h"
#include "connect.h"
#include "progress.h"
#include "transfer.h"
#include "vtls/vtls.h"
#include "curl_ntlm_core.h"
#include "escape.h"
#include "curl_endian.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/* Local API functions */
static CURLcode smb_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode smb_connect(struct Curl_easy *data, bool *done);
static CURLcode smb_connection_state(struct Curl_easy *data, bool *done);
static CURLcode smb_do(struct Curl_easy *data, bool *done);
static CURLcode smb_request_state(struct Curl_easy *data, bool *done);
static CURLcode smb_done(struct Curl_easy *data, CURLcode status,
bool premature);
static CURLcode smb_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead);
static int smb_getsock(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t *socks);
static CURLcode smb_parse_url_path(struct Curl_easy *data,
struct connectdata *conn);
/*
* SMB handler interface
*/
const struct Curl_handler Curl_handler_smb = {
"SMB", /* scheme */
smb_setup_connection, /* setup_connection */
smb_do, /* do_it */
smb_done, /* done */
ZERO_NULL, /* do_more */
smb_connect, /* connect_it */
smb_connection_state, /* connecting */
smb_request_state, /* doing */
smb_getsock, /* proto_getsock */
smb_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
smb_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_SMB, /* defport */
CURLPROTO_SMB, /* protocol */
CURLPROTO_SMB, /* family */
PROTOPT_NONE /* flags */
};
#ifdef USE_SSL
/*
* SMBS handler interface
*/
const struct Curl_handler Curl_handler_smbs = {
"SMBS", /* scheme */
smb_setup_connection, /* setup_connection */
smb_do, /* do_it */
smb_done, /* done */
ZERO_NULL, /* do_more */
smb_connect, /* connect_it */
smb_connection_state, /* connecting */
smb_request_state, /* doing */
smb_getsock, /* proto_getsock */
smb_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
smb_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_SMBS, /* defport */
CURLPROTO_SMBS, /* protocol */
CURLPROTO_SMB, /* family */
PROTOPT_SSL /* flags */
};
#endif
#define MAX_PAYLOAD_SIZE 0x8000
#define MAX_MESSAGE_SIZE (MAX_PAYLOAD_SIZE + 0x1000)
#define CLIENTNAME "curl"
#define SERVICENAME "?????"
/* Append a string to an SMB message */
#define MSGCAT(str) \
do { \
strcpy(p, (str)); \
p += strlen(str); \
} while(0)
/* Append a null-terminated string to an SMB message */
#define MSGCATNULL(str) \
do { \
strcpy(p, (str)); \
p += strlen(str) + 1; \
} while(0)
/* SMB is mostly little endian */
#if (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) || \
defined(__OS400__)
static unsigned short smb_swap16(unsigned short x)
{
return (unsigned short) ((x << 8) | ((x >> 8) & 0xff));
}
static unsigned int smb_swap32(unsigned int x)
{
return (x << 24) | ((x << 8) & 0xff0000) | ((x >> 8) & 0xff00) |
((x >> 24) & 0xff);
}
static curl_off_t smb_swap64(curl_off_t x)
{
return ((curl_off_t) smb_swap32((unsigned int) x) << 32) |
smb_swap32((unsigned int) (x >> 32));
}
#else
# define smb_swap16(x) (x)
# define smb_swap32(x) (x)
# define smb_swap64(x) (x)
#endif
/* SMB request state */
enum smb_req_state {
SMB_REQUESTING,
SMB_TREE_CONNECT,
SMB_OPEN,
SMB_DOWNLOAD,
SMB_UPLOAD,
SMB_CLOSE,
SMB_TREE_DISCONNECT,
SMB_DONE
};
/* SMB request data */
struct smb_request {
enum smb_req_state state;
char *path;
unsigned short tid; /* Even if we connect to the same tree as another */
unsigned short fid; /* request, the tid will be different */
CURLcode result;
};
static void conn_state(struct Curl_easy *data, enum smb_conn_state newstate)
{
struct smb_conn *smbc = &data->conn->proto.smbc;
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* For debug purposes */
static const char * const names[] = {
"SMB_NOT_CONNECTED",
"SMB_CONNECTING",
"SMB_NEGOTIATE",
"SMB_SETUP",
"SMB_CONNECTED",
/* LAST */
};
if(smbc->state != newstate)
infof(data, "SMB conn %p state change from %s to %s",
(void *)smbc, names[smbc->state], names[newstate]);
#endif
smbc->state = newstate;
}
static void request_state(struct Curl_easy *data,
enum smb_req_state newstate)
{
struct smb_request *req = data->req.p.smb;
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* For debug purposes */
static const char * const names[] = {
"SMB_REQUESTING",
"SMB_TREE_CONNECT",
"SMB_OPEN",
"SMB_DOWNLOAD",
"SMB_UPLOAD",
"SMB_CLOSE",
"SMB_TREE_DISCONNECT",
"SMB_DONE",
/* LAST */
};
if(req->state != newstate)
infof(data, "SMB request %p state change from %s to %s",
(void *)req, names[req->state], names[newstate]);
#endif
req->state = newstate;
}
/* this should setup things in the connection, not in the easy
handle */
static CURLcode smb_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
struct smb_request *req;
/* Initialize the request state */
data->req.p.smb = req = calloc(1, sizeof(struct smb_request));
if(!req)
return CURLE_OUT_OF_MEMORY;
/* Parse the URL path */
return smb_parse_url_path(data, conn);
}
static CURLcode smb_connect(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
char *slash;
(void) done;
/* Check we have a username and password to authenticate with */
if(!conn->bits.user_passwd)
return CURLE_LOGIN_DENIED;
/* Initialize the connection state */
smbc->state = SMB_CONNECTING;
smbc->recv_buf = malloc(MAX_MESSAGE_SIZE);
if(!smbc->recv_buf)
return CURLE_OUT_OF_MEMORY;
/* Multiple requests are allowed with this connection */
connkeep(conn, "SMB default");
/* Parse the username, domain, and password */
slash = strchr(conn->user, '/');
if(!slash)
slash = strchr(conn->user, '\\');
if(slash) {
smbc->user = slash + 1;
smbc->domain = strdup(conn->user);
if(!smbc->domain)
return CURLE_OUT_OF_MEMORY;
smbc->domain[slash - conn->user] = 0;
}
else {
smbc->user = conn->user;
smbc->domain = strdup(conn->host.name);
if(!smbc->domain)
return CURLE_OUT_OF_MEMORY;
}
return CURLE_OK;
}
static CURLcode smb_recv_message(struct Curl_easy *data, void **msg)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
char *buf = smbc->recv_buf;
ssize_t bytes_read;
size_t nbt_size;
size_t msg_size;
size_t len = MAX_MESSAGE_SIZE - smbc->got;
CURLcode result;
result = Curl_read(data, FIRSTSOCKET, buf + smbc->got, len, &bytes_read);
if(result)
return result;
if(!bytes_read)
return CURLE_OK;
smbc->got += bytes_read;
/* Check for a 32-bit nbt header */
if(smbc->got < sizeof(unsigned int))
return CURLE_OK;
nbt_size = Curl_read16_be((const unsigned char *)
(buf + sizeof(unsigned short))) +
sizeof(unsigned int);
if(smbc->got < nbt_size)
return CURLE_OK;
msg_size = sizeof(struct smb_header);
if(nbt_size >= msg_size + 1) {
/* Add the word count */
msg_size += 1 + ((unsigned char) buf[msg_size]) * sizeof(unsigned short);
if(nbt_size >= msg_size + sizeof(unsigned short)) {
/* Add the byte count */
msg_size += sizeof(unsigned short) +
Curl_read16_le((const unsigned char *)&buf[msg_size]);
if(nbt_size < msg_size)
return CURLE_READ_ERROR;
}
}
*msg = buf;
return CURLE_OK;
}
static void smb_pop_message(struct connectdata *conn)
{
struct smb_conn *smbc = &conn->proto.smbc;
smbc->got = 0;
}
static void smb_format_message(struct Curl_easy *data, struct smb_header *h,
unsigned char cmd, size_t len)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
struct smb_request *req = data->req.p.smb;
unsigned int pid;
memset(h, 0, sizeof(*h));
h->nbt_length = htons((unsigned short) (sizeof(*h) - sizeof(unsigned int) +
len));
memcpy((char *)h->magic, "\xffSMB", 4);
h->command = cmd;
h->flags = SMB_FLAGS_CANONICAL_PATHNAMES | SMB_FLAGS_CASELESS_PATHNAMES;
h->flags2 = smb_swap16(SMB_FLAGS2_IS_LONG_NAME | SMB_FLAGS2_KNOWS_LONG_NAME);
h->uid = smb_swap16(smbc->uid);
h->tid = smb_swap16(req->tid);
pid = getpid();
h->pid_high = smb_swap16((unsigned short)(pid >> 16));
h->pid = smb_swap16((unsigned short) pid);
}
static CURLcode smb_send(struct Curl_easy *data, ssize_t len,
size_t upload_size)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
ssize_t bytes_written;
CURLcode result;
result = Curl_write(data, FIRSTSOCKET, data->state.ulbuf,
len, &bytes_written);
if(result)
return result;
if(bytes_written != len) {
smbc->send_size = len;
smbc->sent = bytes_written;
}
smbc->upload_size = upload_size;
return CURLE_OK;
}
static CURLcode smb_flush(struct Curl_easy *data)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
ssize_t bytes_written;
ssize_t len = smbc->send_size - smbc->sent;
CURLcode result;
if(!smbc->send_size)
return CURLE_OK;
result = Curl_write(data, FIRSTSOCKET,
data->state.ulbuf + smbc->sent,
len, &bytes_written);
if(result)
return result;
if(bytes_written != len)
smbc->sent += bytes_written;
else
smbc->send_size = 0;
return CURLE_OK;
}
static CURLcode smb_send_message(struct Curl_easy *data, unsigned char cmd,
const void *msg, size_t msg_len)
{
CURLcode result = Curl_get_upload_buffer(data);
if(result)
return result;
smb_format_message(data, (struct smb_header *)data->state.ulbuf,
cmd, msg_len);
memcpy(data->state.ulbuf + sizeof(struct smb_header),
msg, msg_len);
return smb_send(data, sizeof(struct smb_header) + msg_len, 0);
}
static CURLcode smb_send_negotiate(struct Curl_easy *data)
{
const char *msg = "\x00\x0c\x00\x02NT LM 0.12";
return smb_send_message(data, SMB_COM_NEGOTIATE, msg, 15);
}
static CURLcode smb_send_setup(struct Curl_easy *data)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
struct smb_setup msg;
char *p = msg.bytes;
unsigned char lm_hash[21];
unsigned char lm[24];
unsigned char nt_hash[21];
unsigned char nt[24];
size_t byte_count = sizeof(lm) + sizeof(nt);
byte_count += strlen(smbc->user) + strlen(smbc->domain);
byte_count += strlen(OS) + strlen(CLIENTNAME) + 4; /* 4 null chars */
if(byte_count > sizeof(msg.bytes))
return CURLE_FILESIZE_EXCEEDED;
Curl_ntlm_core_mk_lm_hash(data, conn->passwd, lm_hash);
Curl_ntlm_core_lm_resp(lm_hash, smbc->challenge, lm);
#ifdef USE_NTRESPONSES
Curl_ntlm_core_mk_nt_hash(data, conn->passwd, nt_hash);
Curl_ntlm_core_lm_resp(nt_hash, smbc->challenge, nt);
#else
memset(nt, 0, sizeof(nt));
#endif
memset(&msg, 0, sizeof(msg));
msg.word_count = SMB_WC_SETUP_ANDX;
msg.andx.command = SMB_COM_NO_ANDX_COMMAND;
msg.max_buffer_size = smb_swap16(MAX_MESSAGE_SIZE);
msg.max_mpx_count = smb_swap16(1);
msg.vc_number = smb_swap16(1);
msg.session_key = smb_swap32(smbc->session_key);
msg.capabilities = smb_swap32(SMB_CAP_LARGE_FILES);
msg.lengths[0] = smb_swap16(sizeof(lm));
msg.lengths[1] = smb_swap16(sizeof(nt));
memcpy(p, lm, sizeof(lm));
p += sizeof(lm);
memcpy(p, nt, sizeof(nt));
p += sizeof(nt);
MSGCATNULL(smbc->user);
MSGCATNULL(smbc->domain);
MSGCATNULL(OS);
MSGCATNULL(CLIENTNAME);
byte_count = p - msg.bytes;
msg.byte_count = smb_swap16((unsigned short)byte_count);
return smb_send_message(data, SMB_COM_SETUP_ANDX, &msg,
sizeof(msg) - sizeof(msg.bytes) + byte_count);
}
static CURLcode smb_send_tree_connect(struct Curl_easy *data)
{
struct smb_tree_connect msg;
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
char *p = msg.bytes;
size_t byte_count = strlen(conn->host.name) + strlen(smbc->share);
byte_count += strlen(SERVICENAME) + 5; /* 2 nulls and 3 backslashes */
if(byte_count > sizeof(msg.bytes))
return CURLE_FILESIZE_EXCEEDED;
memset(&msg, 0, sizeof(msg));
msg.word_count = SMB_WC_TREE_CONNECT_ANDX;
msg.andx.command = SMB_COM_NO_ANDX_COMMAND;
msg.pw_len = 0;
MSGCAT("\\\\");
MSGCAT(conn->host.name);
MSGCAT("\\");
MSGCATNULL(smbc->share);
MSGCATNULL(SERVICENAME); /* Match any type of service */
byte_count = p - msg.bytes;
msg.byte_count = smb_swap16((unsigned short)byte_count);
return smb_send_message(data, SMB_COM_TREE_CONNECT_ANDX, &msg,
sizeof(msg) - sizeof(msg.bytes) + byte_count);
}
static CURLcode smb_send_open(struct Curl_easy *data)
{
struct smb_request *req = data->req.p.smb;
struct smb_nt_create msg;
size_t byte_count;
if((strlen(req->path) + 1) > sizeof(msg.bytes))
return CURLE_FILESIZE_EXCEEDED;
memset(&msg, 0, sizeof(msg));
msg.word_count = SMB_WC_NT_CREATE_ANDX;
msg.andx.command = SMB_COM_NO_ANDX_COMMAND;
byte_count = strlen(req->path);
msg.name_length = smb_swap16((unsigned short)byte_count);
msg.share_access = smb_swap32(SMB_FILE_SHARE_ALL);
if(data->set.upload) {
msg.access = smb_swap32(SMB_GENERIC_READ | SMB_GENERIC_WRITE);
msg.create_disposition = smb_swap32(SMB_FILE_OVERWRITE_IF);
}
else {
msg.access = smb_swap32(SMB_GENERIC_READ);
msg.create_disposition = smb_swap32(SMB_FILE_OPEN);
}
msg.byte_count = smb_swap16((unsigned short) ++byte_count);
strcpy(msg.bytes, req->path);
return smb_send_message(data, SMB_COM_NT_CREATE_ANDX, &msg,
sizeof(msg) - sizeof(msg.bytes) + byte_count);
}
static CURLcode smb_send_close(struct Curl_easy *data)
{
struct smb_request *req = data->req.p.smb;
struct smb_close msg;
memset(&msg, 0, sizeof(msg));
msg.word_count = SMB_WC_CLOSE;
msg.fid = smb_swap16(req->fid);
return smb_send_message(data, SMB_COM_CLOSE, &msg, sizeof(msg));
}
static CURLcode smb_send_tree_disconnect(struct Curl_easy *data)
{
struct smb_tree_disconnect msg;
memset(&msg, 0, sizeof(msg));
return smb_send_message(data, SMB_COM_TREE_DISCONNECT, &msg, sizeof(msg));
}
static CURLcode smb_send_read(struct Curl_easy *data)
{
struct smb_request *req = data->req.p.smb;
curl_off_t offset = data->req.offset;
struct smb_read msg;
memset(&msg, 0, sizeof(msg));
msg.word_count = SMB_WC_READ_ANDX;
msg.andx.command = SMB_COM_NO_ANDX_COMMAND;
msg.fid = smb_swap16(req->fid);
msg.offset = smb_swap32((unsigned int) offset);
msg.offset_high = smb_swap32((unsigned int) (offset >> 32));
msg.min_bytes = smb_swap16(MAX_PAYLOAD_SIZE);
msg.max_bytes = smb_swap16(MAX_PAYLOAD_SIZE);
return smb_send_message(data, SMB_COM_READ_ANDX, &msg, sizeof(msg));
}
static CURLcode smb_send_write(struct Curl_easy *data)
{
struct smb_write *msg;
struct smb_request *req = data->req.p.smb;
curl_off_t offset = data->req.offset;
curl_off_t upload_size = data->req.size - data->req.bytecount;
CURLcode result = Curl_get_upload_buffer(data);
if(result)
return result;
msg = (struct smb_write *)data->state.ulbuf;
if(upload_size >= MAX_PAYLOAD_SIZE - 1) /* There is one byte of padding */
upload_size = MAX_PAYLOAD_SIZE - 1;
memset(msg, 0, sizeof(*msg));
msg->word_count = SMB_WC_WRITE_ANDX;
msg->andx.command = SMB_COM_NO_ANDX_COMMAND;
msg->fid = smb_swap16(req->fid);
msg->offset = smb_swap32((unsigned int) offset);
msg->offset_high = smb_swap32((unsigned int) (offset >> 32));
msg->data_length = smb_swap16((unsigned short) upload_size);
msg->data_offset = smb_swap16(sizeof(*msg) - sizeof(unsigned int));
msg->byte_count = smb_swap16((unsigned short) (upload_size + 1));
smb_format_message(data, &msg->h, SMB_COM_WRITE_ANDX,
sizeof(*msg) - sizeof(msg->h) + (size_t) upload_size);
return smb_send(data, sizeof(*msg), (size_t) upload_size);
}
static CURLcode smb_send_and_recv(struct Curl_easy *data, void **msg)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
CURLcode result;
*msg = NULL; /* if it returns early */
/* Check if there is data in the transfer buffer */
if(!smbc->send_size && smbc->upload_size) {
size_t nread = smbc->upload_size > (size_t)data->set.upload_buffer_size ?
(size_t)data->set.upload_buffer_size : smbc->upload_size;
data->req.upload_fromhere = data->state.ulbuf;
result = Curl_fillreadbuffer(data, nread, &nread);
if(result && result != CURLE_AGAIN)
return result;
if(!nread)
return CURLE_OK;
smbc->upload_size -= nread;
smbc->send_size = nread;
smbc->sent = 0;
}
/* Check if there is data to send */
if(smbc->send_size) {
result = smb_flush(data);
if(result)
return result;
}
/* Check if there is still data to be sent */
if(smbc->send_size || smbc->upload_size)
return CURLE_AGAIN;
return smb_recv_message(data, msg);
}
static CURLcode smb_connection_state(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
struct smb_negotiate_response *nrsp;
struct smb_header *h;
CURLcode result;
void *msg = NULL;
if(smbc->state == SMB_CONNECTING) {
#ifdef USE_SSL
if((conn->handler->flags & PROTOPT_SSL)) {
bool ssl_done = FALSE;
result = Curl_ssl_connect_nonblocking(data, conn, FALSE,
FIRSTSOCKET, &ssl_done);
if(result && result != CURLE_AGAIN)
return result;
if(!ssl_done)
return CURLE_OK;
}
#endif
result = smb_send_negotiate(data);
if(result) {
connclose(conn, "SMB: failed to send negotiate message");
return result;
}
conn_state(data, SMB_NEGOTIATE);
}
/* Send the previous message and check for a response */
result = smb_send_and_recv(data, &msg);
if(result && result != CURLE_AGAIN) {
connclose(conn, "SMB: failed to communicate");
return result;
}
if(!msg)
return CURLE_OK;
h = msg;
switch(smbc->state) {
case SMB_NEGOTIATE:
if((smbc->got < sizeof(*nrsp) + sizeof(smbc->challenge) - 1) ||
h->status) {
connclose(conn, "SMB: negotiation failed");
return CURLE_COULDNT_CONNECT;
}
nrsp = msg;
memcpy(smbc->challenge, nrsp->bytes, sizeof(smbc->challenge));
smbc->session_key = smb_swap32(nrsp->session_key);
result = smb_send_setup(data);
if(result) {
connclose(conn, "SMB: failed to send setup message");
return result;
}
conn_state(data, SMB_SETUP);
break;
case SMB_SETUP:
if(h->status) {
connclose(conn, "SMB: authentication failed");
return CURLE_LOGIN_DENIED;
}
smbc->uid = smb_swap16(h->uid);
conn_state(data, SMB_CONNECTED);
*done = true;
break;
default:
smb_pop_message(conn);
return CURLE_OK; /* ignore */
}
smb_pop_message(conn);
return CURLE_OK;
}
/*
* Convert a timestamp from the Windows world (100 nsec units from 1 Jan 1601)
* to Posix time. Cap the output to fit within a time_t.
*/
static void get_posix_time(time_t *out, curl_off_t timestamp)
{
timestamp -= 116444736000000000;
timestamp /= 10000000;
#if SIZEOF_TIME_T < SIZEOF_CURL_OFF_T
if(timestamp > TIME_T_MAX)
*out = TIME_T_MAX;
else if(timestamp < TIME_T_MIN)
*out = TIME_T_MIN;
else
#endif
*out = (time_t) timestamp;
}
static CURLcode smb_request_state(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
struct smb_request *req = data->req.p.smb;
struct smb_header *h;
struct smb_conn *smbc = &conn->proto.smbc;
enum smb_req_state next_state = SMB_DONE;
unsigned short len;
unsigned short off;
CURLcode result;
void *msg = NULL;
const struct smb_nt_create_response *smb_m;
/* Start the request */
if(req->state == SMB_REQUESTING) {
result = smb_send_tree_connect(data);
if(result) {
connclose(conn, "SMB: failed to send tree connect message");
return result;
}
request_state(data, SMB_TREE_CONNECT);
}
/* Send the previous message and check for a response */
result = smb_send_and_recv(data, &msg);
if(result && result != CURLE_AGAIN) {
connclose(conn, "SMB: failed to communicate");
return result;
}
if(!msg)
return CURLE_OK;
h = msg;
switch(req->state) {
case SMB_TREE_CONNECT:
if(h->status) {
req->result = CURLE_REMOTE_FILE_NOT_FOUND;
if(h->status == smb_swap32(SMB_ERR_NOACCESS))
req->result = CURLE_REMOTE_ACCESS_DENIED;
break;
}
req->tid = smb_swap16(h->tid);
next_state = SMB_OPEN;
break;
case SMB_OPEN:
if(h->status || smbc->got < sizeof(struct smb_nt_create_response)) {
req->result = CURLE_REMOTE_FILE_NOT_FOUND;
if(h->status == smb_swap32(SMB_ERR_NOACCESS))
req->result = CURLE_REMOTE_ACCESS_DENIED;
next_state = SMB_TREE_DISCONNECT;
break;
}
smb_m = (const struct smb_nt_create_response*) msg;
req->fid = smb_swap16(smb_m->fid);
data->req.offset = 0;
if(data->set.upload) {
data->req.size = data->state.infilesize;
Curl_pgrsSetUploadSize(data, data->req.size);
next_state = SMB_UPLOAD;
}
else {
smb_m = (const struct smb_nt_create_response*) msg;
data->req.size = smb_swap64(smb_m->end_of_file);
if(data->req.size < 0) {
req->result = CURLE_WEIRD_SERVER_REPLY;
next_state = SMB_CLOSE;
}
else {
Curl_pgrsSetDownloadSize(data, data->req.size);
if(data->set.get_filetime)
get_posix_time(&data->info.filetime, smb_m->last_change_time);
next_state = SMB_DOWNLOAD;
}
}
break;
case SMB_DOWNLOAD:
if(h->status || smbc->got < sizeof(struct smb_header) + 14) {
req->result = CURLE_RECV_ERROR;
next_state = SMB_CLOSE;
break;
}
len = Curl_read16_le(((const unsigned char *) msg) +
sizeof(struct smb_header) + 11);
off = Curl_read16_le(((const unsigned char *) msg) +
sizeof(struct smb_header) + 13);
if(len > 0) {
if(off + sizeof(unsigned int) + len > smbc->got) {
failf(data, "Invalid input packet");
result = CURLE_RECV_ERROR;
}
else
result = Curl_client_write(data, CLIENTWRITE_BODY,
(char *)msg + off + sizeof(unsigned int),
len);
if(result) {
req->result = result;
next_state = SMB_CLOSE;
break;
}
}
data->req.bytecount += len;
data->req.offset += len;
Curl_pgrsSetDownloadCounter(data, data->req.bytecount);
next_state = (len < MAX_PAYLOAD_SIZE) ? SMB_CLOSE : SMB_DOWNLOAD;
break;
case SMB_UPLOAD:
if(h->status || smbc->got < sizeof(struct smb_header) + 6) {
req->result = CURLE_UPLOAD_FAILED;
next_state = SMB_CLOSE;
break;
}
len = Curl_read16_le(((const unsigned char *) msg) +
sizeof(struct smb_header) + 5);
data->req.bytecount += len;
data->req.offset += len;
Curl_pgrsSetUploadCounter(data, data->req.bytecount);
if(data->req.bytecount >= data->req.size)
next_state = SMB_CLOSE;
else
next_state = SMB_UPLOAD;
break;
case SMB_CLOSE:
/* We don't care if the close failed, proceed to tree disconnect anyway */
next_state = SMB_TREE_DISCONNECT;
break;
case SMB_TREE_DISCONNECT:
next_state = SMB_DONE;
break;
default:
smb_pop_message(conn);
return CURLE_OK; /* ignore */
}
smb_pop_message(conn);
switch(next_state) {
case SMB_OPEN:
result = smb_send_open(data);
break;
case SMB_DOWNLOAD:
result = smb_send_read(data);
break;
case SMB_UPLOAD:
result = smb_send_write(data);
break;
case SMB_CLOSE:
result = smb_send_close(data);
break;
case SMB_TREE_DISCONNECT:
result = smb_send_tree_disconnect(data);
break;
case SMB_DONE:
result = req->result;
*done = true;
break;
default:
break;
}
if(result) {
connclose(conn, "SMB: failed to send message");
return result;
}
request_state(data, next_state);
return CURLE_OK;
}
static CURLcode smb_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
(void) premature;
Curl_safefree(data->req.p.smb);
return status;
}
static CURLcode smb_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead)
{
struct smb_conn *smbc = &conn->proto.smbc;
(void) dead;
(void) data;
Curl_safefree(smbc->share);
Curl_safefree(smbc->domain);
Curl_safefree(smbc->recv_buf);
return CURLE_OK;
}
static int smb_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks)
{
(void)data;
socks[0] = conn->sock[FIRSTSOCKET];
return GETSOCK_READSOCK(0) | GETSOCK_WRITESOCK(0);
}
static CURLcode smb_do(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
struct smb_conn *smbc = &conn->proto.smbc;
*done = FALSE;
if(smbc->share) {
return CURLE_OK;
}
return CURLE_URL_MALFORMAT;
}
static CURLcode smb_parse_url_path(struct Curl_easy *data,
struct connectdata *conn)
{
struct smb_request *req = data->req.p.smb;
struct smb_conn *smbc = &conn->proto.smbc;
char *path;
char *slash;
/* URL decode the path */
CURLcode result = Curl_urldecode(data, data->state.up.path, 0, &path, NULL,
REJECT_CTRL);
if(result)
return result;
/* Parse the path for the share */
smbc->share = strdup((*path == '/' || *path == '\\') ? path + 1 : path);
free(path);
if(!smbc->share)
return CURLE_OUT_OF_MEMORY;
slash = strchr(smbc->share, '/');
if(!slash)
slash = strchr(smbc->share, '\\');
/* The share must be present */
if(!slash) {
Curl_safefree(smbc->share);
return CURLE_URL_MALFORMAT;
}
/* Parse the path for the file path converting any forward slashes into
backslashes */
*slash++ = 0;
req->path = slash;
for(; *slash; slash++) {
if(*slash == '/')
*slash = '\\';
}
return CURLE_OK;
}
#endif /* CURL_DISABLE_SMB && USE_CURL_NTLM_CORE &&
SIZEOF_CURL_OFF_T > 4 */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/mqtt.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2020 - 2021, Daniel Stenberg, <[email protected]>, et al.
* Copyright (C) 2019, Björn Stenberg, <[email protected]>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_MQTT
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "progress.h"
#include "mqtt.h"
#include "select.h"
#include "strdup.h"
#include "url.h"
#include "escape.h"
#include "warnless.h"
#include "curl_printf.h"
#include "curl_memory.h"
#include "multiif.h"
#include "rand.h"
/* The last #include file should be: */
#include "memdebug.h"
#define MQTT_MSG_CONNECT 0x10
#define MQTT_MSG_CONNACK 0x20
#define MQTT_MSG_PUBLISH 0x30
#define MQTT_MSG_SUBSCRIBE 0x82
#define MQTT_MSG_SUBACK 0x90
#define MQTT_MSG_DISCONNECT 0xe0
#define MQTT_CONNACK_LEN 2
#define MQTT_SUBACK_LEN 3
#define MQTT_CLIENTID_LEN 12 /* "curl0123abcd" */
/*
* Forward declarations.
*/
static CURLcode mqtt_do(struct Curl_easy *data, bool *done);
static CURLcode mqtt_doing(struct Curl_easy *data, bool *done);
static int mqtt_getsock(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t *sock);
static CURLcode mqtt_setup_conn(struct Curl_easy *data,
struct connectdata *conn);
/*
* MQTT protocol handler.
*/
const struct Curl_handler Curl_handler_mqtt = {
"MQTT", /* scheme */
mqtt_setup_conn, /* setup_connection */
mqtt_do, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
mqtt_doing, /* doing */
ZERO_NULL, /* proto_getsock */
mqtt_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_MQTT, /* defport */
CURLPROTO_MQTT, /* protocol */
CURLPROTO_MQTT, /* family */
PROTOPT_NONE /* flags */
};
static CURLcode mqtt_setup_conn(struct Curl_easy *data,
struct connectdata *conn)
{
/* allocate the HTTP-specific struct for the Curl_easy, only to survive
during this request */
struct MQTT *mq;
(void)conn;
DEBUGASSERT(data->req.p.mqtt == NULL);
mq = calloc(1, sizeof(struct MQTT));
if(!mq)
return CURLE_OUT_OF_MEMORY;
data->req.p.mqtt = mq;
return CURLE_OK;
}
static CURLcode mqtt_send(struct Curl_easy *data,
char *buf, size_t len)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
struct MQTT *mq = data->req.p.mqtt;
ssize_t n;
result = Curl_write(data, sockfd, buf, len, &n);
if(!result)
Curl_debug(data, CURLINFO_HEADER_OUT, buf, (size_t)n);
if(len != (size_t)n) {
size_t nsend = len - n;
char *sendleftovers = Curl_memdup(&buf[n], nsend);
if(!sendleftovers)
return CURLE_OUT_OF_MEMORY;
mq->sendleftovers = sendleftovers;
mq->nsend = nsend;
}
else {
mq->sendleftovers = NULL;
mq->nsend = 0;
}
return result;
}
/* Generic function called by the multi interface to figure out what socket(s)
to wait for and for what actions during the DOING and PROTOCONNECT
states */
static int mqtt_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *sock)
{
(void)data;
sock[0] = conn->sock[FIRSTSOCKET];
return GETSOCK_READSOCK(FIRSTSOCKET);
}
static int mqtt_encode_len(char *buf, size_t len)
{
unsigned char encoded;
int i;
for(i = 0; (len > 0) && (i<4); i++) {
encoded = len % 0x80;
len /= 0x80;
if(len)
encoded |= 0x80;
buf[i] = encoded;
}
return i;
}
/* add the passwd to the CONNECT packet */
static int add_passwd(const char *passwd, const size_t plen,
char *pkt, const size_t start, int remain_pos)
{
/* magic number that need to be set properly */
const size_t conn_flags_pos = remain_pos + 8;
if(plen > 0xffff)
return 1;
/* set password flag */
pkt[conn_flags_pos] |= 0x40;
/* length of password provided */
pkt[start] = (char)((plen >> 8) & 0xFF);
pkt[start + 1] = (char)(plen & 0xFF);
memcpy(&pkt[start + 2], passwd, plen);
return 0;
}
/* add user to the CONN packet */
static int add_user(const char *username, const size_t ulen,
unsigned char *pkt, const size_t start, int remain_pos)
{
/* magic number that need to be set properly */
const size_t conn_flags_pos = remain_pos + 8;
if(ulen > 0xffff)
return 1;
/* set username flag */
pkt[conn_flags_pos] |= 0x80;
/* length of username provided */
pkt[start] = (unsigned char)((ulen >> 8) & 0xFF);
pkt[start + 1] = (unsigned char)(ulen & 0xFF);
memcpy(&pkt[start + 2], username, ulen);
return 0;
}
/* add client ID to the CONN packet */
static int add_client_id(const char *client_id, const size_t client_id_len,
char *pkt, const size_t start)
{
if(client_id_len != MQTT_CLIENTID_LEN)
return 1;
pkt[start] = 0x00;
pkt[start + 1] = MQTT_CLIENTID_LEN;
memcpy(&pkt[start + 2], client_id, MQTT_CLIENTID_LEN);
return 0;
}
/* Set initial values of CONN packet */
static int init_connpack(char *packet, char *remain, int remain_pos)
{
/* Fixed header starts */
/* packet type */
packet[0] = MQTT_MSG_CONNECT;
/* remaining length field */
memcpy(&packet[1], remain, remain_pos);
/* Fixed header ends */
/* Variable header starts */
/* protocol length */
packet[remain_pos + 1] = 0x00;
packet[remain_pos + 2] = 0x04;
/* protocol name */
packet[remain_pos + 3] = 'M';
packet[remain_pos + 4] = 'Q';
packet[remain_pos + 5] = 'T';
packet[remain_pos + 6] = 'T';
/* protocol level */
packet[remain_pos + 7] = 0x04;
/* CONNECT flag: CleanSession */
packet[remain_pos + 8] = 0x02;
/* keep-alive 0 = disabled */
packet[remain_pos + 9] = 0x00;
packet[remain_pos + 10] = 0x3c;
/*end of variable header*/
return remain_pos + 10;
}
static CURLcode mqtt_connect(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
int pos = 0;
int rc = 0;
/*remain length*/
int remain_pos = 0;
char remain[4] = {0};
size_t packetlen = 0;
size_t payloadlen = 0;
size_t start_user = 0;
size_t start_pwd = 0;
char client_id[MQTT_CLIENTID_LEN + 1] = "curl";
const size_t clen = strlen("curl");
char *packet = NULL;
/* extracting username from request */
const char *username = data->state.aptr.user ?
data->state.aptr.user : "";
const size_t ulen = strlen(username);
/* extracting password from request */
const char *passwd = data->state.aptr.passwd ?
data->state.aptr.passwd : "";
const size_t plen = strlen(passwd);
payloadlen = ulen + plen + MQTT_CLIENTID_LEN + 2;
/* The plus 2 are for the MSB and LSB describing the length of the string to
* be added on the payload. Refer to spec 1.5.2 and 1.5.4 */
if(ulen)
payloadlen += 2;
if(plen)
payloadlen += 2;
/* getting how much occupy the remain length */
remain_pos = mqtt_encode_len(remain, payloadlen + 10);
/* 10 length of variable header and 1 the first byte of the fixed header */
packetlen = payloadlen + 10 + remain_pos + 1;
/* allocating packet */
if(packetlen > 268435455)
return CURLE_WEIRD_SERVER_REPLY;
packet = malloc(packetlen);
if(!packet)
return CURLE_OUT_OF_MEMORY;
memset(packet, 0, packetlen);
/* set initial values for CONN pack */
pos = init_connpack(packet, remain, remain_pos);
result = Curl_rand_hex(data, (unsigned char *)&client_id[clen],
MQTT_CLIENTID_LEN - clen + 1);
/* add client id */
rc = add_client_id(client_id, strlen(client_id), packet, pos + 1);
if(rc) {
failf(data, "Client ID length mismatched: [%lu]", strlen(client_id));
result = CURLE_WEIRD_SERVER_REPLY;
goto end;
}
infof(data, "Using client id '%s'", client_id);
/* position where starts the user payload */
start_user = pos + 3 + MQTT_CLIENTID_LEN;
/* position where starts the password payload */
start_pwd = start_user + ulen;
/* if user name was provided, add it to the packet */
if(ulen) {
start_pwd += 2;
rc = add_user(username, ulen,
(unsigned char *)packet, start_user, remain_pos);
if(rc) {
failf(data, "Username is too large: [%lu]", ulen);
result = CURLE_WEIRD_SERVER_REPLY;
goto end;
}
}
/* if passwd was provided, add it to the packet */
if(plen) {
rc = add_passwd(passwd, plen, packet, start_pwd, remain_pos);
if(rc) {
failf(data, "Password is too large: [%lu]", plen);
result = CURLE_WEIRD_SERVER_REPLY;
goto end;
}
}
if(!result)
result = mqtt_send(data, packet, packetlen);
end:
if(packet)
free(packet);
Curl_safefree(data->state.aptr.user);
Curl_safefree(data->state.aptr.passwd);
return result;
}
static CURLcode mqtt_disconnect(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
result = mqtt_send(data, (char *)"\xe0\x00", 2);
return result;
}
static CURLcode mqtt_verify_connack(struct Curl_easy *data)
{
CURLcode result;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
unsigned char readbuf[MQTT_CONNACK_LEN];
ssize_t nread;
result = Curl_read(data, sockfd, (char *)readbuf, MQTT_CONNACK_LEN, &nread);
if(result)
goto fail;
Curl_debug(data, CURLINFO_HEADER_IN, (char *)readbuf, (size_t)nread);
/* fixme */
if(nread < MQTT_CONNACK_LEN) {
result = CURLE_WEIRD_SERVER_REPLY;
goto fail;
}
/* verify CONNACK */
if(readbuf[0] != 0x00 || readbuf[1] != 0x00) {
failf(data, "Expected %02x%02x but got %02x%02x",
0x00, 0x00, readbuf[0], readbuf[1]);
result = CURLE_WEIRD_SERVER_REPLY;
}
fail:
return result;
}
static CURLcode mqtt_get_topic(struct Curl_easy *data,
char **topic, size_t *topiclen)
{
char *path = data->state.up.path;
if(strlen(path) > 1)
return Curl_urldecode(data, path + 1, 0, topic, topiclen,
REJECT_NADA);
failf(data, "No MQTT topic found. Forgot to URL encode it?");
return CURLE_URL_MALFORMAT;
}
static CURLcode mqtt_subscribe(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
char *topic = NULL;
size_t topiclen;
unsigned char *packet = NULL;
size_t packetlen;
char encodedsize[4];
size_t n;
struct connectdata *conn = data->conn;
result = mqtt_get_topic(data, &topic, &topiclen);
if(result)
goto fail;
conn->proto.mqtt.packetid++;
packetlen = topiclen + 5; /* packetid + topic (has a two byte length field)
+ 2 bytes topic length + QoS byte */
n = mqtt_encode_len((char *)encodedsize, packetlen);
packetlen += n + 1; /* add one for the control packet type byte */
packet = malloc(packetlen);
if(!packet) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
packet[0] = MQTT_MSG_SUBSCRIBE;
memcpy(&packet[1], encodedsize, n);
packet[1 + n] = (conn->proto.mqtt.packetid >> 8) & 0xff;
packet[2 + n] = conn->proto.mqtt.packetid & 0xff;
packet[3 + n] = (topiclen >> 8) & 0xff;
packet[4 + n ] = topiclen & 0xff;
memcpy(&packet[5 + n], topic, topiclen);
packet[5 + n + topiclen] = 0; /* QoS zero */
result = mqtt_send(data, (char *)packet, packetlen);
fail:
free(topic);
free(packet);
return result;
}
/*
* Called when the first byte was already read.
*/
static CURLcode mqtt_verify_suback(struct Curl_easy *data)
{
CURLcode result;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
unsigned char readbuf[MQTT_SUBACK_LEN];
ssize_t nread;
struct mqtt_conn *mqtt = &conn->proto.mqtt;
result = Curl_read(data, sockfd, (char *)readbuf, MQTT_SUBACK_LEN, &nread);
if(result)
goto fail;
Curl_debug(data, CURLINFO_HEADER_IN, (char *)readbuf, (size_t)nread);
/* fixme */
if(nread < MQTT_SUBACK_LEN) {
result = CURLE_WEIRD_SERVER_REPLY;
goto fail;
}
/* verify SUBACK */
if(readbuf[0] != ((mqtt->packetid >> 8) & 0xff) ||
readbuf[1] != (mqtt->packetid & 0xff) ||
readbuf[2] != 0x00)
result = CURLE_WEIRD_SERVER_REPLY;
fail:
return result;
}
static CURLcode mqtt_publish(struct Curl_easy *data)
{
CURLcode result;
char *payload = data->set.postfields;
size_t payloadlen;
char *topic = NULL;
size_t topiclen;
unsigned char *pkt = NULL;
size_t i = 0;
size_t remaininglength;
size_t encodelen;
char encodedbytes[4];
curl_off_t postfieldsize = data->set.postfieldsize;
if(!payload)
return CURLE_BAD_FUNCTION_ARGUMENT;
if(postfieldsize < 0)
payloadlen = strlen(payload);
else
payloadlen = (size_t)postfieldsize;
result = mqtt_get_topic(data, &topic, &topiclen);
if(result)
goto fail;
remaininglength = payloadlen + 2 + topiclen;
encodelen = mqtt_encode_len(encodedbytes, remaininglength);
/* add the control byte and the encoded remaining length */
pkt = malloc(remaininglength + 1 + encodelen);
if(!pkt) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
/* assemble packet */
pkt[i++] = MQTT_MSG_PUBLISH;
memcpy(&pkt[i], encodedbytes, encodelen);
i += encodelen;
pkt[i++] = (topiclen >> 8) & 0xff;
pkt[i++] = (topiclen & 0xff);
memcpy(&pkt[i], topic, topiclen);
i += topiclen;
memcpy(&pkt[i], payload, payloadlen);
i += payloadlen;
result = mqtt_send(data, (char *)pkt, i);
fail:
free(pkt);
free(topic);
return result;
}
static size_t mqtt_decode_len(unsigned char *buf,
size_t buflen, size_t *lenbytes)
{
size_t len = 0;
size_t mult = 1;
size_t i;
unsigned char encoded = 128;
for(i = 0; (i < buflen) && (encoded & 128); i++) {
encoded = buf[i];
len += (encoded & 127) * mult;
mult *= 128;
}
if(lenbytes)
*lenbytes = i;
return len;
}
#ifdef CURLDEBUG
static const char *statenames[]={
"MQTT_FIRST",
"MQTT_REMAINING_LENGTH",
"MQTT_CONNACK",
"MQTT_SUBACK",
"MQTT_SUBACK_COMING",
"MQTT_PUBWAIT",
"MQTT_PUB_REMAIN",
"NOT A STATE"
};
#endif
/* The only way to change state */
static void mqstate(struct Curl_easy *data,
enum mqttstate state,
enum mqttstate nextstate) /* used if state == FIRST */
{
struct connectdata *conn = data->conn;
struct mqtt_conn *mqtt = &conn->proto.mqtt;
#ifdef CURLDEBUG
infof(data, "%s (from %s) (next is %s)",
statenames[state],
statenames[mqtt->state],
(state == MQTT_FIRST)? statenames[nextstate] : "");
#endif
mqtt->state = state;
if(state == MQTT_FIRST)
mqtt->nextstate = nextstate;
}
/* for the publish packet */
#define MQTT_HEADER_LEN 5 /* max 5 bytes */
static CURLcode mqtt_read_publish(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
ssize_t nread;
unsigned char *pkt = (unsigned char *)data->state.buffer;
size_t remlen;
struct mqtt_conn *mqtt = &conn->proto.mqtt;
struct MQTT *mq = data->req.p.mqtt;
unsigned char packet;
switch(mqtt->state) {
MQTT_SUBACK_COMING:
case MQTT_SUBACK_COMING:
result = mqtt_verify_suback(data);
if(result)
break;
mqstate(data, MQTT_FIRST, MQTT_PUBWAIT);
break;
case MQTT_SUBACK:
case MQTT_PUBWAIT:
/* we are expecting PUBLISH or SUBACK */
packet = mq->firstbyte & 0xf0;
if(packet == MQTT_MSG_PUBLISH)
mqstate(data, MQTT_PUB_REMAIN, MQTT_NOSTATE);
else if(packet == MQTT_MSG_SUBACK) {
mqstate(data, MQTT_SUBACK_COMING, MQTT_NOSTATE);
goto MQTT_SUBACK_COMING;
}
else if(packet == MQTT_MSG_DISCONNECT) {
infof(data, "Got DISCONNECT");
*done = TRUE;
goto end;
}
else {
result = CURLE_WEIRD_SERVER_REPLY;
goto end;
}
/* -- switched state -- */
remlen = mq->remaining_length;
infof(data, "Remaining length: %zd bytes", remlen);
if(data->set.max_filesize &&
(curl_off_t)remlen > data->set.max_filesize) {
failf(data, "Maximum file size exceeded");
result = CURLE_FILESIZE_EXCEEDED;
goto end;
}
Curl_pgrsSetDownloadSize(data, remlen);
data->req.bytecount = 0;
data->req.size = remlen;
mq->npacket = remlen; /* get this many bytes */
/* FALLTHROUGH */
case MQTT_PUB_REMAIN: {
/* read rest of packet, but no more. Cap to buffer size */
struct SingleRequest *k = &data->req;
size_t rest = mq->npacket;
if(rest > (size_t)data->set.buffer_size)
rest = (size_t)data->set.buffer_size;
result = Curl_read(data, sockfd, (char *)pkt, rest, &nread);
if(result) {
if(CURLE_AGAIN == result) {
infof(data, "EEEE AAAAGAIN");
}
goto end;
}
if(!nread) {
infof(data, "server disconnected");
result = CURLE_PARTIAL_FILE;
goto end;
}
Curl_debug(data, CURLINFO_DATA_IN, (char *)pkt, (size_t)nread);
mq->npacket -= nread;
k->bytecount += nread;
Curl_pgrsSetDownloadCounter(data, k->bytecount);
/* if QoS is set, message contains packet id */
result = Curl_client_write(data, CLIENTWRITE_BODY, (char *)pkt, nread);
if(result)
goto end;
if(!mq->npacket)
/* no more PUBLISH payload, back to subscribe wait state */
mqstate(data, MQTT_FIRST, MQTT_PUBWAIT);
break;
}
default:
DEBUGASSERT(NULL); /* illegal state */
result = CURLE_WEIRD_SERVER_REPLY;
goto end;
}
end:
return result;
}
static CURLcode mqtt_do(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
*done = FALSE; /* unconditionally */
result = mqtt_connect(data);
if(result) {
failf(data, "Error %d sending MQTT CONN request", result);
return result;
}
mqstate(data, MQTT_FIRST, MQTT_CONNACK);
return CURLE_OK;
}
static CURLcode mqtt_doing(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct mqtt_conn *mqtt = &conn->proto.mqtt;
struct MQTT *mq = data->req.p.mqtt;
ssize_t nread;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
unsigned char *pkt = (unsigned char *)data->state.buffer;
unsigned char byte;
*done = FALSE;
if(mq->nsend) {
/* send the remainder of an outgoing packet */
char *ptr = mq->sendleftovers;
result = mqtt_send(data, mq->sendleftovers, mq->nsend);
free(ptr);
if(result)
return result;
}
infof(data, "mqtt_doing: state [%d]", (int) mqtt->state);
switch(mqtt->state) {
case MQTT_FIRST:
/* Read the initial byte only */
result = Curl_read(data, sockfd, (char *)&mq->firstbyte, 1, &nread);
if(!nread)
break;
Curl_debug(data, CURLINFO_HEADER_IN, (char *)&mq->firstbyte, 1);
/* remember the first byte */
mq->npacket = 0;
mqstate(data, MQTT_REMAINING_LENGTH, MQTT_NOSTATE);
/* FALLTHROUGH */
case MQTT_REMAINING_LENGTH:
do {
result = Curl_read(data, sockfd, (char *)&byte, 1, &nread);
if(!nread)
break;
Curl_debug(data, CURLINFO_HEADER_IN, (char *)&byte, 1);
pkt[mq->npacket++] = byte;
} while((byte & 0x80) && (mq->npacket < 4));
if(nread && (byte & 0x80))
/* MQTT supports up to 127 * 128^0 + 127 * 128^1 + 127 * 128^2 +
127 * 128^3 bytes. server tried to send more */
result = CURLE_WEIRD_SERVER_REPLY;
if(result)
break;
mq->remaining_length = mqtt_decode_len(&pkt[0], mq->npacket, NULL);
mq->npacket = 0;
if(mq->remaining_length) {
mqstate(data, mqtt->nextstate, MQTT_NOSTATE);
break;
}
mqstate(data, MQTT_FIRST, MQTT_FIRST);
if(mq->firstbyte == MQTT_MSG_DISCONNECT) {
infof(data, "Got DISCONNECT");
*done = TRUE;
}
break;
case MQTT_CONNACK:
result = mqtt_verify_connack(data);
if(result)
break;
if(data->state.httpreq == HTTPREQ_POST) {
result = mqtt_publish(data);
if(!result) {
result = mqtt_disconnect(data);
*done = TRUE;
}
mqtt->nextstate = MQTT_FIRST;
}
else {
result = mqtt_subscribe(data);
if(!result) {
mqstate(data, MQTT_FIRST, MQTT_SUBACK);
}
}
break;
case MQTT_SUBACK:
case MQTT_PUBWAIT:
case MQTT_PUB_REMAIN:
result = mqtt_read_publish(data, done);
break;
default:
failf(data, "State not handled yet");
*done = TRUE;
break;
}
if(result == CURLE_AGAIN)
result = CURLE_OK;
return result;
}
#endif /* CURL_DISABLE_MQTT */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_des.h | #ifndef HEADER_CURL_DES_H
#define HEADER_CURL_DES_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015 - 2020, Steve Holme, <[email protected]>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM) && !defined(USE_OPENSSL)
/* Applies odd parity to the given byte array */
void Curl_des_set_odd_parity(unsigned char *bytes, size_t length);
#endif /* USE_NTLM && !USE_OPENSSL */
#endif /* HEADER_CURL_DES_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/progress.h | #ifndef HEADER_CURL_PROGRESS_H
#define HEADER_CURL_PROGRESS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "timeval.h"
typedef enum {
TIMER_NONE,
TIMER_STARTOP,
TIMER_STARTSINGLE,
TIMER_NAMELOOKUP,
TIMER_CONNECT,
TIMER_APPCONNECT,
TIMER_PRETRANSFER,
TIMER_STARTTRANSFER,
TIMER_POSTRANSFER,
TIMER_STARTACCEPT,
TIMER_REDIRECT,
TIMER_LAST /* must be last */
} timerid;
int Curl_pgrsDone(struct Curl_easy *data);
void Curl_pgrsStartNow(struct Curl_easy *data);
void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size);
void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size);
void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size);
void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size);
void Curl_ratelimit(struct Curl_easy *data, struct curltime now);
int Curl_pgrsUpdate(struct Curl_easy *data);
void Curl_pgrsResetTransferSizes(struct Curl_easy *data);
struct curltime Curl_pgrsTime(struct Curl_easy *data, timerid timer);
timediff_t Curl_pgrsLimitWaitTime(curl_off_t cursize,
curl_off_t startsize,
curl_off_t limit,
struct curltime start,
struct curltime now);
#define PGRS_HIDE (1<<4)
#define PGRS_UL_SIZE_KNOWN (1<<5)
#define PGRS_DL_SIZE_KNOWN (1<<6)
#define PGRS_HEADERS_OUT (1<<7) /* set when the headers have been written */
#endif /* HEADER_CURL_PROGRESS_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/parsedate.h | #ifndef HEADER_CURL_PARSEDATE_H
#define HEADER_CURL_PARSEDATE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
extern const char * const Curl_wkday[7];
extern const char * const Curl_month[12];
CURLcode Curl_gmtime(time_t intime, struct tm *store);
/* Curl_getdate_capped() differs from curl_getdate() in that this will return
TIME_T_MAX in case the parsed time value was too big, instead of an
error. */
time_t Curl_getdate_capped(const char *p);
#endif /* HEADER_CURL_PARSEDATE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_des.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015 - 2021, Steve Holme, <[email protected]>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM) && !defined(USE_OPENSSL) && !defined(USE_WOLFSSL)
#include "curl_des.h"
/*
* Curl_des_set_odd_parity()
*
* This is used to apply odd parity to the given byte array. It is typically
* used by when a cryptography engines doesn't have it's own version.
*
* The function is a port of the Java based oddParity() function over at:
*
* https://davenport.sourceforge.io/ntlm.html
*
* Parameters:
*
* bytes [in/out] - The data whose parity bits are to be adjusted for
* odd parity.
* len [out] - The length of the data.
*/
void Curl_des_set_odd_parity(unsigned char *bytes, size_t len)
{
size_t i;
for(i = 0; i < len; i++) {
unsigned char b = bytes[i];
bool needs_parity = (((b >> 7) ^ (b >> 6) ^ (b >> 5) ^
(b >> 4) ^ (b >> 3) ^ (b >> 2) ^
(b >> 1)) & 0x01) == 0;
if(needs_parity)
bytes[i] |= 0x01;
else
bytes[i] &= 0xfe;
}
}
#endif /* USE_NTLM && !USE_OPENSSL */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http_aws_sigv4.h | #ifndef HEADER_CURL_HTTP_AWS_SIGV4_H
#define HEADER_CURL_HTTP_AWS_SIGV4_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/* this is for creating aws_sigv4 header output */
CURLcode Curl_output_aws_sigv4(struct Curl_easy *data, bool proxy);
#endif /* HEADER_CURL_HTTP_AWS_SIGV4_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_printf.h | #ifndef HEADER_CURL_PRINTF_H
#define HEADER_CURL_PRINTF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* This header should be included by ALL code in libcurl that uses any
* *rintf() functions.
*/
#include <curl/mprintf.h>
# undef printf
# undef fprintf
# undef msnprintf
# undef vprintf
# undef vfprintf
# undef vsnprintf
# undef aprintf
# undef vaprintf
# define printf curl_mprintf
# define fprintf curl_mfprintf
# define msnprintf curl_msnprintf
# define vprintf curl_mvprintf
# define vfprintf curl_mvfprintf
# define mvsnprintf curl_mvsnprintf
# define aprintf curl_maprintf
# define vaprintf curl_mvaprintf
#endif /* HEADER_CURL_PRINTF_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/base64.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Base64 encoding/decoding */
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP_AUTH) || defined(USE_SSH) || \
!defined(CURL_DISABLE_LDAP) || \
!defined(CURL_DISABLE_SMTP) || \
!defined(CURL_DISABLE_POP3) || \
!defined(CURL_DISABLE_IMAP) || \
!defined(CURL_DISABLE_DOH) || defined(USE_SSL)
#include "urldata.h" /* for the Curl_easy definition */
#include "warnless.h"
#include "curl_base64.h"
#include "non-ascii.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* ---- Base64 Encoding/Decoding Table --- */
static const char base64[]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
/* The Base 64 encoding with an URL and filename safe alphabet, RFC 4648
section 5 */
static const char base64url[]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
static size_t decodeQuantum(unsigned char *dest, const char *src)
{
size_t padding = 0;
const char *s, *p;
unsigned long i, x = 0;
for(i = 0, s = src; i < 4; i++, s++) {
if(*s == '=') {
x = (x << 6);
padding++;
}
else {
unsigned long v = 0;
p = base64;
while(*p && (*p != *s)) {
v++;
p++;
}
if(*p == *s)
x = (x << 6) + v;
else
return 0;
}
}
if(padding < 1)
dest[2] = curlx_ultouc(x & 0xFFUL);
x >>= 8;
if(padding < 2)
dest[1] = curlx_ultouc(x & 0xFFUL);
x >>= 8;
dest[0] = curlx_ultouc(x & 0xFFUL);
return 3 - padding;
}
/*
* Curl_base64_decode()
*
* Given a base64 NUL-terminated string at src, decode it and return a
* pointer in *outptr to a newly allocated memory area holding decoded
* data. Size of decoded data is returned in variable pointed by outlen.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When decoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64_decode(const char *src,
unsigned char **outptr, size_t *outlen)
{
size_t srclen = 0;
size_t length = 0;
size_t padding = 0;
size_t i;
size_t numQuantums;
size_t rawlen = 0;
unsigned char *pos;
unsigned char *newstr;
*outptr = NULL;
*outlen = 0;
srclen = strlen(src);
/* Check the length of the input string is valid */
if(!srclen || srclen % 4)
return CURLE_BAD_CONTENT_ENCODING;
/* Find the position of any = padding characters */
while((src[length] != '=') && src[length])
length++;
/* A maximum of two = padding characters is allowed */
if(src[length] == '=') {
padding++;
if(src[length + 1] == '=')
padding++;
}
/* Check the = padding characters weren't part way through the input */
if(length + padding != srclen)
return CURLE_BAD_CONTENT_ENCODING;
/* Calculate the number of quantums */
numQuantums = srclen / 4;
/* Calculate the size of the decoded string */
rawlen = (numQuantums * 3) - padding;
/* Allocate our buffer including room for a zero terminator */
newstr = malloc(rawlen + 1);
if(!newstr)
return CURLE_OUT_OF_MEMORY;
pos = newstr;
/* Decode the quantums */
for(i = 0; i < numQuantums; i++) {
size_t result = decodeQuantum(pos, src);
if(!result) {
free(newstr);
return CURLE_BAD_CONTENT_ENCODING;
}
pos += result;
src += 4;
}
/* Zero terminate */
*pos = '\0';
/* Return the decoded data */
*outptr = newstr;
*outlen = rawlen;
return CURLE_OK;
}
static CURLcode base64_encode(const char *table64,
struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
CURLcode result;
unsigned char ibuf[3];
unsigned char obuf[4];
int i;
int inputparts;
char *output;
char *base64data;
char *convbuf = NULL;
const char *indata = inputbuff;
*outptr = NULL;
*outlen = 0;
if(!insize)
insize = strlen(indata);
#if SIZEOF_SIZE_T == 4
if(insize > UINT_MAX/4)
return CURLE_OUT_OF_MEMORY;
#endif
base64data = output = malloc(insize * 4 / 3 + 4);
if(!output)
return CURLE_OUT_OF_MEMORY;
/*
* The base64 data needs to be created using the network encoding
* not the host encoding. And we can't change the actual input
* so we copy it to a buffer, translate it, and use that instead.
*/
result = Curl_convert_clone(data, indata, insize, &convbuf);
if(result) {
free(output);
return result;
}
if(convbuf)
indata = (char *)convbuf;
while(insize > 0) {
for(i = inputparts = 0; i < 3; i++) {
if(insize > 0) {
inputparts++;
ibuf[i] = (unsigned char) *indata;
indata++;
insize--;
}
else
ibuf[i] = 0;
}
obuf[0] = (unsigned char) ((ibuf[0] & 0xFC) >> 2);
obuf[1] = (unsigned char) (((ibuf[0] & 0x03) << 4) | \
((ibuf[1] & 0xF0) >> 4));
obuf[2] = (unsigned char) (((ibuf[1] & 0x0F) << 2) | \
((ibuf[2] & 0xC0) >> 6));
obuf[3] = (unsigned char) (ibuf[2] & 0x3F);
switch(inputparts) {
case 1: /* only one byte read */
msnprintf(output, 5, "%c%c==",
table64[obuf[0]],
table64[obuf[1]]);
break;
case 2: /* two bytes read */
msnprintf(output, 5, "%c%c%c=",
table64[obuf[0]],
table64[obuf[1]],
table64[obuf[2]]);
break;
default:
msnprintf(output, 5, "%c%c%c%c",
table64[obuf[0]],
table64[obuf[1]],
table64[obuf[2]],
table64[obuf[3]]);
break;
}
output += 4;
}
/* Zero terminate */
*output = '\0';
/* Return the pointer to the new data (allocated memory) */
*outptr = base64data;
free(convbuf);
/* Return the length of the new data */
*outlen = strlen(base64data);
return CURLE_OK;
}
/*
* Curl_base64_encode()
*
* Given a pointer to an input buffer and an input size, encode it and
* return a pointer in *outptr to a newly allocated memory area holding
* encoded data. Size of encoded data is returned in variable pointed by
* outlen.
*
* Input length of 0 indicates input buffer holds a NUL-terminated string.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When encoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
return base64_encode(base64, data, inputbuff, insize, outptr, outlen);
}
/*
* Curl_base64url_encode()
*
* Given a pointer to an input buffer and an input size, encode it and
* return a pointer in *outptr to a newly allocated memory area holding
* encoded data. Size of encoded data is returned in variable pointed by
* outlen.
*
* Input length of 0 indicates input buffer holds a NUL-terminated string.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When encoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64url_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
return base64_encode(base64url, data, inputbuff, insize, outptr, outlen);
}
#endif /* no users so disabled */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/smtp.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* RFC1870 SMTP Service Extension for Message Size
* RFC2195 CRAM-MD5 authentication
* RFC2831 DIGEST-MD5 authentication
* RFC3207 SMTP over TLS
* RFC4422 Simple Authentication and Security Layer (SASL)
* RFC4616 PLAIN authentication
* RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism
* RFC4954 SMTP Authentication
* RFC5321 SMTP protocol
* RFC5890 Internationalized Domain Names for Applications (IDNA)
* RFC6531 SMTP Extension for Internationalized Email
* RFC6532 Internationalized Email Headers
* RFC6749 OAuth 2.0 Authorization Framework
* RFC8314 Use of TLS for Email Submission and Access
* Draft SMTP URL Interface <draft-earhart-url-smtp-00.txt>
* Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt>
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_SMTP
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "progress.h"
#include "transfer.h"
#include "escape.h"
#include "http.h" /* for HTTP proxy tunnel stuff */
#include "mime.h"
#include "socks.h"
#include "smtp.h"
#include "strtoofft.h"
#include "strcase.h"
#include "vtls/vtls.h"
#include "connect.h"
#include "select.h"
#include "multiif.h"
#include "url.h"
#include "curl_gethostname.h"
#include "bufref.h"
#include "curl_sasl.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Local API functions */
static CURLcode smtp_regular_transfer(struct Curl_easy *data, bool *done);
static CURLcode smtp_do(struct Curl_easy *data, bool *done);
static CURLcode smtp_done(struct Curl_easy *data, CURLcode status,
bool premature);
static CURLcode smtp_connect(struct Curl_easy *data, bool *done);
static CURLcode smtp_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead);
static CURLcode smtp_multi_statemach(struct Curl_easy *data, bool *done);
static int smtp_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks);
static CURLcode smtp_doing(struct Curl_easy *data, bool *dophase_done);
static CURLcode smtp_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode smtp_parse_url_options(struct connectdata *conn);
static CURLcode smtp_parse_url_path(struct Curl_easy *data);
static CURLcode smtp_parse_custom_request(struct Curl_easy *data);
static CURLcode smtp_parse_address(struct Curl_easy *data, const char *fqma,
char **address, struct hostname *host);
static CURLcode smtp_perform_auth(struct Curl_easy *data, const char *mech,
const struct bufref *initresp);
static CURLcode smtp_continue_auth(struct Curl_easy *data, const char *mech,
const struct bufref *resp);
static CURLcode smtp_cancel_auth(struct Curl_easy *data, const char *mech);
static CURLcode smtp_get_message(struct Curl_easy *data, struct bufref *out);
/*
* SMTP protocol handler.
*/
const struct Curl_handler Curl_handler_smtp = {
"SMTP", /* scheme */
smtp_setup_connection, /* setup_connection */
smtp_do, /* do_it */
smtp_done, /* done */
ZERO_NULL, /* do_more */
smtp_connect, /* connect_it */
smtp_multi_statemach, /* connecting */
smtp_doing, /* doing */
smtp_getsock, /* proto_getsock */
smtp_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
smtp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_SMTP, /* defport */
CURLPROTO_SMTP, /* protocol */
CURLPROTO_SMTP, /* family */
PROTOPT_CLOSEACTION | PROTOPT_NOURLQUERY | /* flags */
PROTOPT_URLOPTIONS
};
#ifdef USE_SSL
/*
* SMTPS protocol handler.
*/
const struct Curl_handler Curl_handler_smtps = {
"SMTPS", /* scheme */
smtp_setup_connection, /* setup_connection */
smtp_do, /* do_it */
smtp_done, /* done */
ZERO_NULL, /* do_more */
smtp_connect, /* connect_it */
smtp_multi_statemach, /* connecting */
smtp_doing, /* doing */
smtp_getsock, /* proto_getsock */
smtp_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
smtp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_SMTPS, /* defport */
CURLPROTO_SMTPS, /* protocol */
CURLPROTO_SMTP, /* family */
PROTOPT_CLOSEACTION | PROTOPT_SSL
| PROTOPT_NOURLQUERY | PROTOPT_URLOPTIONS /* flags */
};
#endif
/* SASL parameters for the smtp protocol */
static const struct SASLproto saslsmtp = {
"smtp", /* The service name */
smtp_perform_auth, /* Send authentication command */
smtp_continue_auth, /* Send authentication continuation */
smtp_cancel_auth, /* Cancel authentication */
smtp_get_message, /* Get SASL response message */
512 - 8, /* Max line len - strlen("AUTH ") - 1 space - crlf */
334, /* Code received when continuation is expected */
235, /* Code to receive upon authentication success */
SASL_AUTH_DEFAULT, /* Default mechanisms */
SASL_FLAG_BASE64 /* Configuration flags */
};
#ifdef USE_SSL
static void smtp_to_smtps(struct connectdata *conn)
{
/* Change the connection handler */
conn->handler = &Curl_handler_smtps;
/* Set the connection's upgraded to TLS flag */
conn->bits.tls_upgraded = TRUE;
}
#else
#define smtp_to_smtps(x) Curl_nop_stmt
#endif
/***********************************************************************
*
* smtp_endofresp()
*
* Checks for an ending SMTP status code at the start of the given string, but
* also detects various capabilities from the EHLO response including the
* supported authentication mechanisms.
*/
static bool smtp_endofresp(struct Curl_easy *data, struct connectdata *conn,
char *line, size_t len, int *resp)
{
struct smtp_conn *smtpc = &conn->proto.smtpc;
bool result = FALSE;
(void)data;
/* Nothing for us */
if(len < 4 || !ISDIGIT(line[0]) || !ISDIGIT(line[1]) || !ISDIGIT(line[2]))
return FALSE;
/* Do we have a command response? This should be the response code followed
by a space and optionally some text as per RFC-5321 and as outlined in
Section 4. Examples of RFC-4954 but some e-mail servers ignore this and
only send the response code instead as per Section 4.2. */
if(line[3] == ' ' || len == 5) {
char tmpline[6];
result = TRUE;
memset(tmpline, '\0', sizeof(tmpline));
memcpy(tmpline, line, (len == 5 ? 5 : 3));
*resp = curlx_sltosi(strtol(tmpline, NULL, 10));
/* Make sure real server never sends internal value */
if(*resp == 1)
*resp = 0;
}
/* Do we have a multiline (continuation) response? */
else if(line[3] == '-' &&
(smtpc->state == SMTP_EHLO || smtpc->state == SMTP_COMMAND)) {
result = TRUE;
*resp = 1; /* Internal response code */
}
return result;
}
/***********************************************************************
*
* smtp_get_message()
*
* Gets the authentication message from the response buffer.
*/
static CURLcode smtp_get_message(struct Curl_easy *data, struct bufref *out)
{
char *message = data->state.buffer;
size_t len = strlen(message);
if(len > 4) {
/* Find the start of the message */
len -= 4;
for(message += 4; *message == ' ' || *message == '\t'; message++, len--)
;
/* Find the end of the message */
while(len--)
if(message[len] != '\r' && message[len] != '\n' && message[len] != ' ' &&
message[len] != '\t')
break;
/* Terminate the message */
message[++len] = '\0';
Curl_bufref_set(out, message, len, NULL);
}
else
/* junk input => zero length output */
Curl_bufref_set(out, "", 0, NULL);
return CURLE_OK;
}
/***********************************************************************
*
* state()
*
* This is the ONLY way to change SMTP state!
*/
static void state(struct Curl_easy *data, smtpstate newstate)
{
struct smtp_conn *smtpc = &data->conn->proto.smtpc;
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* for debug purposes */
static const char * const names[] = {
"STOP",
"SERVERGREET",
"EHLO",
"HELO",
"STARTTLS",
"UPGRADETLS",
"AUTH",
"COMMAND",
"MAIL",
"RCPT",
"DATA",
"POSTDATA",
"QUIT",
/* LAST */
};
if(smtpc->state != newstate)
infof(data, "SMTP %p state change from %s to %s",
(void *)smtpc, names[smtpc->state], names[newstate]);
#endif
smtpc->state = newstate;
}
/***********************************************************************
*
* smtp_perform_ehlo()
*
* Sends the EHLO command to not only initialise communication with the ESMTP
* server but to also obtain a list of server side supported capabilities.
*/
static CURLcode smtp_perform_ehlo(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
smtpc->sasl.authmechs = SASL_AUTH_NONE; /* No known auth. mechanism yet */
smtpc->sasl.authused = SASL_AUTH_NONE; /* Clear the authentication mechanism
used for esmtp connections */
smtpc->tls_supported = FALSE; /* Clear the TLS capability */
smtpc->auth_supported = FALSE; /* Clear the AUTH capability */
/* Send the EHLO command */
result = Curl_pp_sendf(data, &smtpc->pp, "EHLO %s", smtpc->domain);
if(!result)
state(data, SMTP_EHLO);
return result;
}
/***********************************************************************
*
* smtp_perform_helo()
*
* Sends the HELO command to initialise communication with the SMTP server.
*/
static CURLcode smtp_perform_helo(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct smtp_conn *smtpc = &conn->proto.smtpc;
smtpc->sasl.authused = SASL_AUTH_NONE; /* No authentication mechanism used
in smtp connections */
/* Send the HELO command */
result = Curl_pp_sendf(data, &smtpc->pp, "HELO %s", smtpc->domain);
if(!result)
state(data, SMTP_HELO);
return result;
}
/***********************************************************************
*
* smtp_perform_starttls()
*
* Sends the STLS command to start the upgrade to TLS.
*/
static CURLcode smtp_perform_starttls(struct Curl_easy *data,
struct connectdata *conn)
{
/* Send the STARTTLS command */
CURLcode result = Curl_pp_sendf(data, &conn->proto.smtpc.pp,
"%s", "STARTTLS");
if(!result)
state(data, SMTP_STARTTLS);
return result;
}
/***********************************************************************
*
* smtp_perform_upgrade_tls()
*
* Performs the upgrade to TLS.
*/
static CURLcode smtp_perform_upgrade_tls(struct Curl_easy *data)
{
/* Start the SSL connection */
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
CURLcode result = Curl_ssl_connect_nonblocking(data, conn, FALSE,
FIRSTSOCKET,
&smtpc->ssldone);
if(!result) {
if(smtpc->state != SMTP_UPGRADETLS)
state(data, SMTP_UPGRADETLS);
if(smtpc->ssldone) {
smtp_to_smtps(conn);
result = smtp_perform_ehlo(data);
}
}
return result;
}
/***********************************************************************
*
* smtp_perform_auth()
*
* Sends an AUTH command allowing the client to login with the given SASL
* authentication mechanism.
*/
static CURLcode smtp_perform_auth(struct Curl_easy *data,
const char *mech,
const struct bufref *initresp)
{
CURLcode result = CURLE_OK;
struct smtp_conn *smtpc = &data->conn->proto.smtpc;
const char *ir = (const char *) Curl_bufref_ptr(initresp);
if(ir) { /* AUTH <mech> ...<crlf> */
/* Send the AUTH command with the initial response */
result = Curl_pp_sendf(data, &smtpc->pp, "AUTH %s %s", mech, ir);
}
else {
/* Send the AUTH command */
result = Curl_pp_sendf(data, &smtpc->pp, "AUTH %s", mech);
}
return result;
}
/***********************************************************************
*
* smtp_continue_auth()
*
* Sends SASL continuation data.
*/
static CURLcode smtp_continue_auth(struct Curl_easy *data,
const char *mech,
const struct bufref *resp)
{
struct smtp_conn *smtpc = &data->conn->proto.smtpc;
(void)mech;
return Curl_pp_sendf(data, &smtpc->pp,
"%s", (const char *) Curl_bufref_ptr(resp));
}
/***********************************************************************
*
* smtp_cancel_auth()
*
* Sends SASL cancellation.
*/
static CURLcode smtp_cancel_auth(struct Curl_easy *data, const char *mech)
{
struct smtp_conn *smtpc = &data->conn->proto.smtpc;
(void)mech;
return Curl_pp_sendf(data, &smtpc->pp, "*");
}
/***********************************************************************
*
* smtp_perform_authentication()
*
* Initiates the authentication sequence, with the appropriate SASL
* authentication mechanism.
*/
static CURLcode smtp_perform_authentication(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
saslprogress progress;
/* Check we have enough data to authenticate with, and the
server supports authentication, and end the connect phase if not */
if(!smtpc->auth_supported ||
!Curl_sasl_can_authenticate(&smtpc->sasl, conn)) {
state(data, SMTP_STOP);
return result;
}
/* Calculate the SASL login details */
result = Curl_sasl_start(&smtpc->sasl, data, FALSE, &progress);
if(!result) {
if(progress == SASL_INPROGRESS)
state(data, SMTP_AUTH);
else {
/* Other mechanisms not supported */
infof(data, "No known authentication mechanisms supported!");
result = CURLE_LOGIN_DENIED;
}
}
return result;
}
/***********************************************************************
*
* smtp_perform_command()
*
* Sends a SMTP based command.
*/
static CURLcode smtp_perform_command(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct SMTP *smtp = data->req.p.smtp;
if(smtp->rcpt) {
/* We notify the server we are sending UTF-8 data if a) it supports the
SMTPUTF8 extension and b) The mailbox contains UTF-8 characters, in
either the local address or host name parts. This is regardless of
whether the host name is encoded using IDN ACE */
bool utf8 = FALSE;
if((!smtp->custom) || (!smtp->custom[0])) {
char *address = NULL;
struct hostname host = { NULL, NULL, NULL, NULL };
/* Parse the mailbox to verify into the local address and host name
parts, converting the host name to an IDN A-label if necessary */
result = smtp_parse_address(data, smtp->rcpt->data,
&address, &host);
if(result)
return result;
/* Establish whether we should report SMTPUTF8 to the server for this
mailbox as per RFC-6531 sect. 3.1 point 6 */
utf8 = (conn->proto.smtpc.utf8_supported) &&
((host.encalloc) || (!Curl_is_ASCII_name(address)) ||
(!Curl_is_ASCII_name(host.name)));
/* Send the VRFY command (Note: The host name part may be absent when the
host is a local system) */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "VRFY %s%s%s%s",
address,
host.name ? "@" : "",
host.name ? host.name : "",
utf8 ? " SMTPUTF8" : "");
Curl_free_idnconverted_hostname(&host);
free(address);
}
else {
/* Establish whether we should report that we support SMTPUTF8 for EXPN
commands to the server as per RFC-6531 sect. 3.1 point 6 */
utf8 = (conn->proto.smtpc.utf8_supported) &&
(!strcmp(smtp->custom, "EXPN"));
/* Send the custom recipient based command such as the EXPN command */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp,
"%s %s%s", smtp->custom,
smtp->rcpt->data,
utf8 ? " SMTPUTF8" : "");
}
}
else
/* Send the non-recipient based command such as HELP */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "%s",
smtp->custom && smtp->custom[0] != '\0' ?
smtp->custom : "HELP");
if(!result)
state(data, SMTP_COMMAND);
return result;
}
/***********************************************************************
*
* smtp_perform_mail()
*
* Sends an MAIL command to initiate the upload of a message.
*/
static CURLcode smtp_perform_mail(struct Curl_easy *data)
{
char *from = NULL;
char *auth = NULL;
char *size = NULL;
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
/* We notify the server we are sending UTF-8 data if a) it supports the
SMTPUTF8 extension and b) The mailbox contains UTF-8 characters, in
either the local address or host name parts. This is regardless of
whether the host name is encoded using IDN ACE */
bool utf8 = FALSE;
/* Calculate the FROM parameter */
if(data->set.str[STRING_MAIL_FROM]) {
char *address = NULL;
struct hostname host = { NULL, NULL, NULL, NULL };
/* Parse the FROM mailbox into the local address and host name parts,
converting the host name to an IDN A-label if necessary */
result = smtp_parse_address(data, data->set.str[STRING_MAIL_FROM],
&address, &host);
if(result)
return result;
/* Establish whether we should report SMTPUTF8 to the server for this
mailbox as per RFC-6531 sect. 3.1 point 4 and sect. 3.4 */
utf8 = (conn->proto.smtpc.utf8_supported) &&
((host.encalloc) || (!Curl_is_ASCII_name(address)) ||
(!Curl_is_ASCII_name(host.name)));
if(host.name) {
from = aprintf("<%s@%s>", address, host.name);
Curl_free_idnconverted_hostname(&host);
}
else
/* An invalid mailbox was provided but we'll simply let the server worry
about that and reply with a 501 error */
from = aprintf("<%s>", address);
free(address);
}
else
/* Null reverse-path, RFC-5321, sect. 3.6.3 */
from = strdup("<>");
if(!from)
return CURLE_OUT_OF_MEMORY;
/* Calculate the optional AUTH parameter */
if(data->set.str[STRING_MAIL_AUTH] && conn->proto.smtpc.sasl.authused) {
if(data->set.str[STRING_MAIL_AUTH][0] != '\0') {
char *address = NULL;
struct hostname host = { NULL, NULL, NULL, NULL };
/* Parse the AUTH mailbox into the local address and host name parts,
converting the host name to an IDN A-label if necessary */
result = smtp_parse_address(data, data->set.str[STRING_MAIL_AUTH],
&address, &host);
if(result) {
free(from);
return result;
}
/* Establish whether we should report SMTPUTF8 to the server for this
mailbox as per RFC-6531 sect. 3.1 point 4 and sect. 3.4 */
if((!utf8) && (conn->proto.smtpc.utf8_supported) &&
((host.encalloc) || (!Curl_is_ASCII_name(address)) ||
(!Curl_is_ASCII_name(host.name))))
utf8 = TRUE;
if(host.name) {
auth = aprintf("<%s@%s>", address, host.name);
Curl_free_idnconverted_hostname(&host);
}
else
/* An invalid mailbox was provided but we'll simply let the server
worry about it */
auth = aprintf("<%s>", address);
free(address);
}
else
/* Empty AUTH, RFC-2554, sect. 5 */
auth = strdup("<>");
if(!auth) {
free(from);
return CURLE_OUT_OF_MEMORY;
}
}
/* Prepare the mime data if some. */
if(data->set.mimepost.kind != MIMEKIND_NONE) {
/* Use the whole structure as data. */
data->set.mimepost.flags &= ~MIME_BODY_ONLY;
/* Add external headers and mime version. */
curl_mime_headers(&data->set.mimepost, data->set.headers, 0);
result = Curl_mime_prepare_headers(&data->set.mimepost, NULL,
NULL, MIMESTRATEGY_MAIL);
if(!result)
if(!Curl_checkheaders(data, "Mime-Version"))
result = Curl_mime_add_header(&data->set.mimepost.curlheaders,
"Mime-Version: 1.0");
/* Make sure we will read the entire mime structure. */
if(!result)
result = Curl_mime_rewind(&data->set.mimepost);
if(result) {
free(from);
free(auth);
return result;
}
data->state.infilesize = Curl_mime_size(&data->set.mimepost);
/* Read from mime structure. */
data->state.fread_func = (curl_read_callback) Curl_mime_read;
data->state.in = (void *) &data->set.mimepost;
}
/* Calculate the optional SIZE parameter */
if(conn->proto.smtpc.size_supported && data->state.infilesize > 0) {
size = aprintf("%" CURL_FORMAT_CURL_OFF_T, data->state.infilesize);
if(!size) {
free(from);
free(auth);
return CURLE_OUT_OF_MEMORY;
}
}
/* If the mailboxes in the FROM and AUTH parameters don't include a UTF-8
based address then quickly scan through the recipient list and check if
any there do, as we need to correctly identify our support for SMTPUTF8
in the envelope, as per RFC-6531 sect. 3.4 */
if(conn->proto.smtpc.utf8_supported && !utf8) {
struct SMTP *smtp = data->req.p.smtp;
struct curl_slist *rcpt = smtp->rcpt;
while(rcpt && !utf8) {
/* Does the host name contain non-ASCII characters? */
if(!Curl_is_ASCII_name(rcpt->data))
utf8 = TRUE;
rcpt = rcpt->next;
}
}
/* Send the MAIL command */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp,
"MAIL FROM:%s%s%s%s%s%s",
from, /* Mandatory */
auth ? " AUTH=" : "", /* Optional on AUTH support */
auth ? auth : "", /* */
size ? " SIZE=" : "", /* Optional on SIZE support */
size ? size : "", /* */
utf8 ? " SMTPUTF8" /* Internationalised mailbox */
: ""); /* included in our envelope */
free(from);
free(auth);
free(size);
if(!result)
state(data, SMTP_MAIL);
return result;
}
/***********************************************************************
*
* smtp_perform_rcpt_to()
*
* Sends a RCPT TO command for a given recipient as part of the message upload
* process.
*/
static CURLcode smtp_perform_rcpt_to(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct SMTP *smtp = data->req.p.smtp;
char *address = NULL;
struct hostname host = { NULL, NULL, NULL, NULL };
/* Parse the recipient mailbox into the local address and host name parts,
converting the host name to an IDN A-label if necessary */
result = smtp_parse_address(data, smtp->rcpt->data,
&address, &host);
if(result)
return result;
/* Send the RCPT TO command */
if(host.name)
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "RCPT TO:<%s@%s>",
address, host.name);
else
/* An invalid mailbox was provided but we'll simply let the server worry
about that and reply with a 501 error */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "RCPT TO:<%s>",
address);
Curl_free_idnconverted_hostname(&host);
free(address);
if(!result)
state(data, SMTP_RCPT);
return result;
}
/***********************************************************************
*
* smtp_perform_quit()
*
* Performs the quit action prior to sclose() being called.
*/
static CURLcode smtp_perform_quit(struct Curl_easy *data,
struct connectdata *conn)
{
/* Send the QUIT command */
CURLcode result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "%s", "QUIT");
if(!result)
state(data, SMTP_QUIT);
return result;
}
/* For the initial server greeting */
static CURLcode smtp_state_servergreet_resp(struct Curl_easy *data,
int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(smtpcode/100 != 2) {
failf(data, "Got unexpected smtp-server response: %d", smtpcode);
result = CURLE_WEIRD_SERVER_REPLY;
}
else
result = smtp_perform_ehlo(data);
return result;
}
/* For STARTTLS responses */
static CURLcode smtp_state_starttls_resp(struct Curl_easy *data,
int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
/* Pipelining in response is forbidden. */
if(data->conn->proto.smtpc.pp.cache_size)
return CURLE_WEIRD_SERVER_REPLY;
if(smtpcode != 220) {
if(data->set.use_ssl != CURLUSESSL_TRY) {
failf(data, "STARTTLS denied, code %d", smtpcode);
result = CURLE_USE_SSL_FAILED;
}
else
result = smtp_perform_authentication(data);
}
else
result = smtp_perform_upgrade_tls(data);
return result;
}
/* For EHLO responses */
static CURLcode smtp_state_ehlo_resp(struct Curl_easy *data,
struct connectdata *conn, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
struct smtp_conn *smtpc = &conn->proto.smtpc;
const char *line = data->state.buffer;
size_t len = strlen(line);
(void)instate; /* no use for this yet */
if(smtpcode/100 != 2 && smtpcode != 1) {
if(data->set.use_ssl <= CURLUSESSL_TRY || conn->ssl[FIRSTSOCKET].use)
result = smtp_perform_helo(data, conn);
else {
failf(data, "Remote access denied: %d", smtpcode);
result = CURLE_REMOTE_ACCESS_DENIED;
}
}
else if(len >= 4) {
line += 4;
len -= 4;
/* Does the server support the STARTTLS capability? */
if(len >= 8 && !memcmp(line, "STARTTLS", 8))
smtpc->tls_supported = TRUE;
/* Does the server support the SIZE capability? */
else if(len >= 4 && !memcmp(line, "SIZE", 4))
smtpc->size_supported = TRUE;
/* Does the server support the UTF-8 capability? */
else if(len >= 8 && !memcmp(line, "SMTPUTF8", 8))
smtpc->utf8_supported = TRUE;
/* Does the server support authentication? */
else if(len >= 5 && !memcmp(line, "AUTH ", 5)) {
smtpc->auth_supported = TRUE;
/* Advance past the AUTH keyword */
line += 5;
len -= 5;
/* Loop through the data line */
for(;;) {
size_t llen;
size_t wordlen;
unsigned short mechbit;
while(len &&
(*line == ' ' || *line == '\t' ||
*line == '\r' || *line == '\n')) {
line++;
len--;
}
if(!len)
break;
/* Extract the word */
for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Test the word for a matching authentication mechanism */
mechbit = Curl_sasl_decode_mech(line, wordlen, &llen);
if(mechbit && llen == wordlen)
smtpc->sasl.authmechs |= mechbit;
line += wordlen;
len -= wordlen;
}
}
if(smtpcode != 1) {
if(data->set.use_ssl && !conn->ssl[FIRSTSOCKET].use) {
/* We don't have a SSL/TLS connection yet, but SSL is requested */
if(smtpc->tls_supported)
/* Switch to TLS connection now */
result = smtp_perform_starttls(data, conn);
else if(data->set.use_ssl == CURLUSESSL_TRY)
/* Fallback and carry on with authentication */
result = smtp_perform_authentication(data);
else {
failf(data, "STARTTLS not supported.");
result = CURLE_USE_SSL_FAILED;
}
}
else
result = smtp_perform_authentication(data);
}
}
else {
failf(data, "Unexpectedly short EHLO response");
result = CURLE_WEIRD_SERVER_REPLY;
}
return result;
}
/* For HELO responses */
static CURLcode smtp_state_helo_resp(struct Curl_easy *data, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(smtpcode/100 != 2) {
failf(data, "Remote access denied: %d", smtpcode);
result = CURLE_REMOTE_ACCESS_DENIED;
}
else
/* End of connect phase */
state(data, SMTP_STOP);
return result;
}
/* For SASL authentication responses */
static CURLcode smtp_state_auth_resp(struct Curl_easy *data,
int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
saslprogress progress;
(void)instate; /* no use for this yet */
result = Curl_sasl_continue(&smtpc->sasl, data, smtpcode, &progress);
if(!result)
switch(progress) {
case SASL_DONE:
state(data, SMTP_STOP); /* Authenticated */
break;
case SASL_IDLE: /* No mechanism left after cancellation */
failf(data, "Authentication cancelled");
result = CURLE_LOGIN_DENIED;
break;
default:
break;
}
return result;
}
/* For command responses */
static CURLcode smtp_state_command_resp(struct Curl_easy *data, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
struct SMTP *smtp = data->req.p.smtp;
char *line = data->state.buffer;
size_t len = strlen(line);
(void)instate; /* no use for this yet */
if((smtp->rcpt && smtpcode/100 != 2 && smtpcode != 553 && smtpcode != 1) ||
(!smtp->rcpt && smtpcode/100 != 2 && smtpcode != 1)) {
failf(data, "Command failed: %d", smtpcode);
result = CURLE_RECV_ERROR;
}
else {
/* Temporarily add the LF character back and send as body to the client */
if(!data->set.opt_no_body) {
line[len] = '\n';
result = Curl_client_write(data, CLIENTWRITE_BODY, line, len + 1);
line[len] = '\0';
}
if(smtpcode != 1) {
if(smtp->rcpt) {
smtp->rcpt = smtp->rcpt->next;
if(smtp->rcpt) {
/* Send the next command */
result = smtp_perform_command(data);
}
else
/* End of DO phase */
state(data, SMTP_STOP);
}
else
/* End of DO phase */
state(data, SMTP_STOP);
}
}
return result;
}
/* For MAIL responses */
static CURLcode smtp_state_mail_resp(struct Curl_easy *data, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(smtpcode/100 != 2) {
failf(data, "MAIL failed: %d", smtpcode);
result = CURLE_SEND_ERROR;
}
else
/* Start the RCPT TO command */
result = smtp_perform_rcpt_to(data);
return result;
}
/* For RCPT responses */
static CURLcode smtp_state_rcpt_resp(struct Curl_easy *data,
struct connectdata *conn, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
struct SMTP *smtp = data->req.p.smtp;
bool is_smtp_err = FALSE;
bool is_smtp_blocking_err = FALSE;
(void)instate; /* no use for this yet */
is_smtp_err = (smtpcode/100 != 2) ? TRUE : FALSE;
/* If there's multiple RCPT TO to be issued, it's possible to ignore errors
and proceed with only the valid addresses. */
is_smtp_blocking_err =
(is_smtp_err && !data->set.mail_rcpt_allowfails) ? TRUE : FALSE;
if(is_smtp_err) {
/* Remembering the last failure which we can report if all "RCPT TO" have
failed and we cannot proceed. */
smtp->rcpt_last_error = smtpcode;
if(is_smtp_blocking_err) {
failf(data, "RCPT failed: %d", smtpcode);
result = CURLE_SEND_ERROR;
}
}
else {
/* Some RCPT TO commands have succeeded. */
smtp->rcpt_had_ok = TRUE;
}
if(!is_smtp_blocking_err) {
smtp->rcpt = smtp->rcpt->next;
if(smtp->rcpt)
/* Send the next RCPT TO command */
result = smtp_perform_rcpt_to(data);
else {
/* We weren't able to issue a successful RCPT TO command while going
over recipients (potentially multiple). Sending back last error. */
if(!smtp->rcpt_had_ok) {
failf(data, "RCPT failed: %d (last error)", smtp->rcpt_last_error);
result = CURLE_SEND_ERROR;
}
else {
/* Send the DATA command */
result = Curl_pp_sendf(data, &conn->proto.smtpc.pp, "%s", "DATA");
if(!result)
state(data, SMTP_DATA);
}
}
}
return result;
}
/* For DATA response */
static CURLcode smtp_state_data_resp(struct Curl_easy *data, int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(smtpcode != 354) {
failf(data, "DATA failed: %d", smtpcode);
result = CURLE_SEND_ERROR;
}
else {
/* Set the progress upload size */
Curl_pgrsSetUploadSize(data, data->state.infilesize);
/* SMTP upload */
Curl_setup_transfer(data, -1, -1, FALSE, FIRSTSOCKET);
/* End of DO phase */
state(data, SMTP_STOP);
}
return result;
}
/* For POSTDATA responses, which are received after the entire DATA
part has been sent to the server */
static CURLcode smtp_state_postdata_resp(struct Curl_easy *data,
int smtpcode,
smtpstate instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(smtpcode != 250)
result = CURLE_RECV_ERROR;
/* End of DONE phase */
state(data, SMTP_STOP);
return result;
}
static CURLcode smtp_statemachine(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int smtpcode;
struct smtp_conn *smtpc = &conn->proto.smtpc;
struct pingpong *pp = &smtpc->pp;
size_t nread = 0;
/* Busy upgrading the connection; right now all I/O is SSL/TLS, not SMTP */
if(smtpc->state == SMTP_UPGRADETLS)
return smtp_perform_upgrade_tls(data);
/* Flush any data that needs to be sent */
if(pp->sendleft)
return Curl_pp_flushsend(data, pp);
do {
/* Read the response from the server */
result = Curl_pp_readresp(data, sock, pp, &smtpcode, &nread);
if(result)
return result;
/* Store the latest response for later retrieval if necessary */
if(smtpc->state != SMTP_QUIT && smtpcode != 1)
data->info.httpcode = smtpcode;
if(!smtpcode)
break;
/* We have now received a full SMTP server response */
switch(smtpc->state) {
case SMTP_SERVERGREET:
result = smtp_state_servergreet_resp(data, smtpcode, smtpc->state);
break;
case SMTP_EHLO:
result = smtp_state_ehlo_resp(data, conn, smtpcode, smtpc->state);
break;
case SMTP_HELO:
result = smtp_state_helo_resp(data, smtpcode, smtpc->state);
break;
case SMTP_STARTTLS:
result = smtp_state_starttls_resp(data, smtpcode, smtpc->state);
break;
case SMTP_AUTH:
result = smtp_state_auth_resp(data, smtpcode, smtpc->state);
break;
case SMTP_COMMAND:
result = smtp_state_command_resp(data, smtpcode, smtpc->state);
break;
case SMTP_MAIL:
result = smtp_state_mail_resp(data, smtpcode, smtpc->state);
break;
case SMTP_RCPT:
result = smtp_state_rcpt_resp(data, conn, smtpcode, smtpc->state);
break;
case SMTP_DATA:
result = smtp_state_data_resp(data, smtpcode, smtpc->state);
break;
case SMTP_POSTDATA:
result = smtp_state_postdata_resp(data, smtpcode, smtpc->state);
break;
case SMTP_QUIT:
/* fallthrough, just stop! */
default:
/* internal error */
state(data, SMTP_STOP);
break;
}
} while(!result && smtpc->state != SMTP_STOP && Curl_pp_moredata(pp));
return result;
}
/* Called repeatedly until done from multi.c */
static CURLcode smtp_multi_statemach(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
if((conn->handler->flags & PROTOPT_SSL) && !smtpc->ssldone) {
result = Curl_ssl_connect_nonblocking(data, conn, FALSE,
FIRSTSOCKET, &smtpc->ssldone);
if(result || !smtpc->ssldone)
return result;
}
result = Curl_pp_statemach(data, &smtpc->pp, FALSE, FALSE);
*done = (smtpc->state == SMTP_STOP) ? TRUE : FALSE;
return result;
}
static CURLcode smtp_block_statemach(struct Curl_easy *data,
struct connectdata *conn,
bool disconnecting)
{
CURLcode result = CURLE_OK;
struct smtp_conn *smtpc = &conn->proto.smtpc;
while(smtpc->state != SMTP_STOP && !result)
result = Curl_pp_statemach(data, &smtpc->pp, TRUE, disconnecting);
return result;
}
/* Allocate and initialize the SMTP struct for the current Curl_easy if
required */
static CURLcode smtp_init(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct SMTP *smtp;
smtp = data->req.p.smtp = calloc(sizeof(struct SMTP), 1);
if(!smtp)
result = CURLE_OUT_OF_MEMORY;
return result;
}
/* For the SMTP "protocol connect" and "doing" phases only */
static int smtp_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks)
{
return Curl_pp_getsock(data, &conn->proto.smtpc.pp, socks);
}
/***********************************************************************
*
* smtp_connect()
*
* This function should do everything that is to be considered a part of
* the connection phase.
*
* The variable pointed to by 'done' will be TRUE if the protocol-layer
* connect phase is done when this function returns, or FALSE if not.
*/
static CURLcode smtp_connect(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
struct pingpong *pp = &smtpc->pp;
*done = FALSE; /* default to not done yet */
/* We always support persistent connections in SMTP */
connkeep(conn, "SMTP default");
PINGPONG_SETUP(pp, smtp_statemachine, smtp_endofresp);
/* Initialize the SASL storage */
Curl_sasl_init(&smtpc->sasl, data, &saslsmtp);
/* Initialise the pingpong layer */
Curl_pp_setup(pp);
Curl_pp_init(data, pp);
/* Parse the URL options */
result = smtp_parse_url_options(conn);
if(result)
return result;
/* Parse the URL path */
result = smtp_parse_url_path(data);
if(result)
return result;
/* Start off waiting for the server greeting response */
state(data, SMTP_SERVERGREET);
result = smtp_multi_statemach(data, done);
return result;
}
/***********************************************************************
*
* smtp_done()
*
* The DONE function. This does what needs to be done after a single DO has
* performed.
*
* Input argument is already checked for validity.
*/
static CURLcode smtp_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct SMTP *smtp = data->req.p.smtp;
struct pingpong *pp = &conn->proto.smtpc.pp;
char *eob;
ssize_t len;
ssize_t bytes_written;
(void)premature;
if(!smtp)
return CURLE_OK;
/* Cleanup our per-request based variables */
Curl_safefree(smtp->custom);
if(status) {
connclose(conn, "SMTP done with bad status"); /* marked for closure */
result = status; /* use the already set error code */
}
else if(!data->set.connect_only && data->set.mail_rcpt &&
(data->set.upload || data->set.mimepost.kind)) {
/* Calculate the EOB taking into account any terminating CRLF from the
previous line of the email or the CRLF of the DATA command when there
is "no mail data". RFC-5321, sect. 4.1.1.4.
Note: As some SSL backends, such as OpenSSL, will cause Curl_write() to
fail when using a different pointer following a previous write, that
returned CURLE_AGAIN, we duplicate the EOB now rather than when the
bytes written doesn't equal len. */
if(smtp->trailing_crlf || !data->state.infilesize) {
eob = strdup(&SMTP_EOB[2]);
len = SMTP_EOB_LEN - 2;
}
else {
eob = strdup(SMTP_EOB);
len = SMTP_EOB_LEN;
}
if(!eob)
return CURLE_OUT_OF_MEMORY;
/* Send the end of block data */
result = Curl_write(data, conn->writesockfd, eob, len, &bytes_written);
if(result) {
free(eob);
return result;
}
if(bytes_written != len) {
/* The whole chunk was not sent so keep it around and adjust the
pingpong structure accordingly */
pp->sendthis = eob;
pp->sendsize = len;
pp->sendleft = len - bytes_written;
}
else {
/* Successfully sent so adjust the response timeout relative to now */
pp->response = Curl_now();
free(eob);
}
state(data, SMTP_POSTDATA);
/* Run the state-machine */
result = smtp_block_statemach(data, conn, FALSE);
}
/* Clear the transfer mode for the next request */
smtp->transfer = PPTRANSFER_BODY;
return result;
}
/***********************************************************************
*
* smtp_perform()
*
* This is the actual DO function for SMTP. Transfer a mail, send a command
* or get some data according to the options previously setup.
*/
static CURLcode smtp_perform(struct Curl_easy *data, bool *connected,
bool *dophase_done)
{
/* This is SMTP and no proxy */
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct SMTP *smtp = data->req.p.smtp;
DEBUGF(infof(data, "DO phase starts"));
if(data->set.opt_no_body) {
/* Requested no body means no transfer */
smtp->transfer = PPTRANSFER_INFO;
}
*dophase_done = FALSE; /* not done yet */
/* Store the first recipient (or NULL if not specified) */
smtp->rcpt = data->set.mail_rcpt;
/* Track of whether we've successfully sent at least one RCPT TO command */
smtp->rcpt_had_ok = FALSE;
/* Track of the last error we've received by sending RCPT TO command */
smtp->rcpt_last_error = 0;
/* Initial data character is the first character in line: it is implicitly
preceded by a virtual CRLF. */
smtp->trailing_crlf = TRUE;
smtp->eob = 2;
/* Start the first command in the DO phase */
if((data->set.upload || data->set.mimepost.kind) && data->set.mail_rcpt)
/* MAIL transfer */
result = smtp_perform_mail(data);
else
/* SMTP based command (VRFY, EXPN, NOOP, RSET or HELP) */
result = smtp_perform_command(data);
if(result)
return result;
/* Run the state-machine */
result = smtp_multi_statemach(data, dophase_done);
*connected = conn->bits.tcpconnect[FIRSTSOCKET];
if(*dophase_done)
DEBUGF(infof(data, "DO phase is complete"));
return result;
}
/***********************************************************************
*
* smtp_do()
*
* This function is registered as 'curl_do' function. It decodes the path
* parts etc as a wrapper to the actual DO function (smtp_perform).
*
* The input argument is already checked for validity.
*/
static CURLcode smtp_do(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
*done = FALSE; /* default to false */
/* Parse the custom request */
result = smtp_parse_custom_request(data);
if(result)
return result;
result = smtp_regular_transfer(data, done);
return result;
}
/***********************************************************************
*
* smtp_disconnect()
*
* Disconnect from an SMTP server. Cleanup protocol-specific per-connection
* resources. BLOCKING.
*/
static CURLcode smtp_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection)
{
struct smtp_conn *smtpc = &conn->proto.smtpc;
(void)data;
/* We cannot send quit unconditionally. If this connection is stale or
bad in any way, sending quit and waiting around here will make the
disconnect wait in vain and cause more problems than we need to. */
if(!dead_connection && conn->bits.protoconnstart) {
if(!smtp_perform_quit(data, conn))
(void)smtp_block_statemach(data, conn, TRUE); /* ignore errors on QUIT */
}
/* Disconnect from the server */
Curl_pp_disconnect(&smtpc->pp);
/* Cleanup the SASL module */
Curl_sasl_cleanup(conn, smtpc->sasl.authused);
/* Cleanup our connection based variables */
Curl_safefree(smtpc->domain);
return CURLE_OK;
}
/* Call this when the DO phase has completed */
static CURLcode smtp_dophase_done(struct Curl_easy *data, bool connected)
{
struct SMTP *smtp = data->req.p.smtp;
(void)connected;
if(smtp->transfer != PPTRANSFER_BODY)
/* no data to transfer */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
return CURLE_OK;
}
/* Called from multi.c while DOing */
static CURLcode smtp_doing(struct Curl_easy *data, bool *dophase_done)
{
CURLcode result = smtp_multi_statemach(data, dophase_done);
if(result)
DEBUGF(infof(data, "DO phase failed"));
else if(*dophase_done) {
result = smtp_dophase_done(data, FALSE /* not connected */);
DEBUGF(infof(data, "DO phase is complete"));
}
return result;
}
/***********************************************************************
*
* smtp_regular_transfer()
*
* The input argument is already checked for validity.
*
* Performs all commands done before a regular transfer between a local and a
* remote host.
*/
static CURLcode smtp_regular_transfer(struct Curl_easy *data,
bool *dophase_done)
{
CURLcode result = CURLE_OK;
bool connected = FALSE;
/* Make sure size is unknown at this point */
data->req.size = -1;
/* Set the progress data */
Curl_pgrsSetUploadCounter(data, 0);
Curl_pgrsSetDownloadCounter(data, 0);
Curl_pgrsSetUploadSize(data, -1);
Curl_pgrsSetDownloadSize(data, -1);
/* Carry out the perform */
result = smtp_perform(data, &connected, dophase_done);
/* Perform post DO phase operations if necessary */
if(!result && *dophase_done)
result = smtp_dophase_done(data, connected);
return result;
}
static CURLcode smtp_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result;
/* Clear the TLS upgraded flag */
conn->bits.tls_upgraded = FALSE;
/* Initialise the SMTP layer */
result = smtp_init(data);
if(result)
return result;
return CURLE_OK;
}
/***********************************************************************
*
* smtp_parse_url_options()
*
* Parse the URL login options.
*/
static CURLcode smtp_parse_url_options(struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct smtp_conn *smtpc = &conn->proto.smtpc;
const char *ptr = conn->options;
while(!result && ptr && *ptr) {
const char *key = ptr;
const char *value;
while(*ptr && *ptr != '=')
ptr++;
value = ptr + 1;
while(*ptr && *ptr != ';')
ptr++;
if(strncasecompare(key, "AUTH=", 5))
result = Curl_sasl_parse_url_auth_option(&smtpc->sasl,
value, ptr - value);
else
result = CURLE_URL_MALFORMAT;
if(*ptr == ';')
ptr++;
}
return result;
}
/***********************************************************************
*
* smtp_parse_url_path()
*
* Parse the URL path into separate path components.
*/
static CURLcode smtp_parse_url_path(struct Curl_easy *data)
{
/* The SMTP struct is already initialised in smtp_connect() */
struct connectdata *conn = data->conn;
struct smtp_conn *smtpc = &conn->proto.smtpc;
const char *path = &data->state.up.path[1]; /* skip leading path */
char localhost[HOSTNAME_MAX + 1];
/* Calculate the path if necessary */
if(!*path) {
if(!Curl_gethostname(localhost, sizeof(localhost)))
path = localhost;
else
path = "localhost";
}
/* URL decode the path and use it as the domain in our EHLO */
return Curl_urldecode(data, path, 0, &smtpc->domain, NULL,
REJECT_CTRL);
}
/***********************************************************************
*
* smtp_parse_custom_request()
*
* Parse the custom request.
*/
static CURLcode smtp_parse_custom_request(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct SMTP *smtp = data->req.p.smtp;
const char *custom = data->set.str[STRING_CUSTOMREQUEST];
/* URL decode the custom request */
if(custom)
result = Curl_urldecode(data, custom, 0, &smtp->custom, NULL, REJECT_CTRL);
return result;
}
/***********************************************************************
*
* smtp_parse_address()
*
* Parse the fully qualified mailbox address into a local address part and the
* host name, converting the host name to an IDN A-label, as per RFC-5890, if
* necessary.
*
* Parameters:
*
* conn [in] - The connection handle.
* fqma [in] - The fully qualified mailbox address (which may or
* may not contain UTF-8 characters).
* address [in/out] - A new allocated buffer which holds the local
* address part of the mailbox. This buffer must be
* free'ed by the caller.
* host [in/out] - The host name structure that holds the original,
* and optionally encoded, host name.
* Curl_free_idnconverted_hostname() must be called
* once the caller has finished with the structure.
*
* Returns CURLE_OK on success.
*
* Notes:
*
* Should a UTF-8 host name require conversion to IDN ACE and we cannot honor
* that conversion then we shall return success. This allow the caller to send
* the data to the server as a U-label (as per RFC-6531 sect. 3.2).
*
* If an mailbox '@' separator cannot be located then the mailbox is considered
* to be either a local mailbox or an invalid mailbox (depending on what the
* calling function deems it to be) then the input will simply be returned in
* the address part with the host name being NULL.
*/
static CURLcode smtp_parse_address(struct Curl_easy *data, const char *fqma,
char **address, struct hostname *host)
{
CURLcode result = CURLE_OK;
size_t length;
/* Duplicate the fully qualified email address so we can manipulate it,
ensuring it doesn't contain the delimiters if specified */
char *dup = strdup(fqma[0] == '<' ? fqma + 1 : fqma);
if(!dup)
return CURLE_OUT_OF_MEMORY;
length = strlen(dup);
if(length) {
if(dup[length - 1] == '>')
dup[length - 1] = '\0';
}
/* Extract the host name from the address (if we can) */
host->name = strpbrk(dup, "@");
if(host->name) {
*host->name = '\0';
host->name = host->name + 1;
/* Attempt to convert the host name to IDN ACE */
(void) Curl_idnconvert_hostname(data, host);
/* If Curl_idnconvert_hostname() fails then we shall attempt to continue
and send the host name using UTF-8 rather than as 7-bit ACE (which is
our preference) */
}
/* Extract the local address from the mailbox */
*address = dup;
return result;
}
CURLcode Curl_smtp_escape_eob(struct Curl_easy *data, const ssize_t nread)
{
/* When sending a SMTP payload we must detect CRLF. sequences making sure
they are sent as CRLF.. instead, as a . on the beginning of a line will
be deleted by the server when not part of an EOB terminator and a
genuine CRLF.CRLF which isn't escaped will wrongly be detected as end of
data by the server
*/
ssize_t i;
ssize_t si;
struct SMTP *smtp = data->req.p.smtp;
char *scratch = data->state.scratch;
char *newscratch = NULL;
char *oldscratch = NULL;
size_t eob_sent;
/* Do we need to allocate a scratch buffer? */
if(!scratch || data->set.crlf) {
oldscratch = scratch;
scratch = newscratch = malloc(2 * data->set.upload_buffer_size);
if(!newscratch) {
failf(data, "Failed to alloc scratch buffer!");
return CURLE_OUT_OF_MEMORY;
}
}
DEBUGASSERT((size_t)data->set.upload_buffer_size >= (size_t)nread);
/* Have we already sent part of the EOB? */
eob_sent = smtp->eob;
/* This loop can be improved by some kind of Boyer-Moore style of
approach but that is saved for later... */
for(i = 0, si = 0; i < nread; i++) {
if(SMTP_EOB[smtp->eob] == data->req.upload_fromhere[i]) {
smtp->eob++;
/* Is the EOB potentially the terminating CRLF? */
if(2 == smtp->eob || SMTP_EOB_LEN == smtp->eob)
smtp->trailing_crlf = TRUE;
else
smtp->trailing_crlf = FALSE;
}
else if(smtp->eob) {
/* A previous substring matched so output that first */
memcpy(&scratch[si], &SMTP_EOB[eob_sent], smtp->eob - eob_sent);
si += smtp->eob - eob_sent;
/* Then compare the first byte */
if(SMTP_EOB[0] == data->req.upload_fromhere[i])
smtp->eob = 1;
else
smtp->eob = 0;
eob_sent = 0;
/* Reset the trailing CRLF flag as there was more data */
smtp->trailing_crlf = FALSE;
}
/* Do we have a match for CRLF. as per RFC-5321, sect. 4.5.2 */
if(SMTP_EOB_FIND_LEN == smtp->eob) {
/* Copy the replacement data to the target buffer */
memcpy(&scratch[si], &SMTP_EOB_REPL[eob_sent],
SMTP_EOB_REPL_LEN - eob_sent);
si += SMTP_EOB_REPL_LEN - eob_sent;
smtp->eob = 0;
eob_sent = 0;
}
else if(!smtp->eob)
scratch[si++] = data->req.upload_fromhere[i];
}
if(smtp->eob - eob_sent) {
/* A substring matched before processing ended so output that now */
memcpy(&scratch[si], &SMTP_EOB[eob_sent], smtp->eob - eob_sent);
si += smtp->eob - eob_sent;
}
/* Only use the new buffer if we replaced something */
if(si != nread) {
/* Upload from the new (replaced) buffer instead */
data->req.upload_fromhere = scratch;
/* Save the buffer so it can be freed later */
data->state.scratch = scratch;
/* Free the old scratch buffer */
free(oldscratch);
/* Set the new amount too */
data->req.upload_present = si;
}
else
free(newscratch);
return CURLE_OK;
}
#endif /* CURL_DISABLE_SMTP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/ftplistparser.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/**
* Now implemented:
*
* 1) Unix version 1
* drwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog
* 2) Unix version 2
* drwxr-xr-x 1 user01 ftp 512 Jan 29 1997 prog
* 3) Unix version 3
* drwxr-xr-x 1 1 1 512 Jan 29 23:32 prog
* 4) Unix symlink
* lrwxr-xr-x 1 user01 ftp 512 Jan 29 23:32 prog -> prog2000
* 5) DOS style
* 01-29-97 11:32PM <DIR> prog
*/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#include <curl/curl.h>
#include "urldata.h"
#include "fileinfo.h"
#include "llist.h"
#include "strtoofft.h"
#include "ftp.h"
#include "ftplistparser.h"
#include "curl_fnmatch.h"
#include "curl_memory.h"
#include "multiif.h"
/* The last #include file should be: */
#include "memdebug.h"
/* allocs buffer which will contain one line of LIST command response */
#define FTP_BUFFER_ALLOCSIZE 160
typedef enum {
PL_UNIX_TOTALSIZE = 0,
PL_UNIX_FILETYPE,
PL_UNIX_PERMISSION,
PL_UNIX_HLINKS,
PL_UNIX_USER,
PL_UNIX_GROUP,
PL_UNIX_SIZE,
PL_UNIX_TIME,
PL_UNIX_FILENAME,
PL_UNIX_SYMLINK
} pl_unix_mainstate;
typedef union {
enum {
PL_UNIX_TOTALSIZE_INIT = 0,
PL_UNIX_TOTALSIZE_READING
} total_dirsize;
enum {
PL_UNIX_HLINKS_PRESPACE = 0,
PL_UNIX_HLINKS_NUMBER
} hlinks;
enum {
PL_UNIX_USER_PRESPACE = 0,
PL_UNIX_USER_PARSING
} user;
enum {
PL_UNIX_GROUP_PRESPACE = 0,
PL_UNIX_GROUP_NAME
} group;
enum {
PL_UNIX_SIZE_PRESPACE = 0,
PL_UNIX_SIZE_NUMBER
} size;
enum {
PL_UNIX_TIME_PREPART1 = 0,
PL_UNIX_TIME_PART1,
PL_UNIX_TIME_PREPART2,
PL_UNIX_TIME_PART2,
PL_UNIX_TIME_PREPART3,
PL_UNIX_TIME_PART3
} time;
enum {
PL_UNIX_FILENAME_PRESPACE = 0,
PL_UNIX_FILENAME_NAME,
PL_UNIX_FILENAME_WINDOWSEOL
} filename;
enum {
PL_UNIX_SYMLINK_PRESPACE = 0,
PL_UNIX_SYMLINK_NAME,
PL_UNIX_SYMLINK_PRETARGET1,
PL_UNIX_SYMLINK_PRETARGET2,
PL_UNIX_SYMLINK_PRETARGET3,
PL_UNIX_SYMLINK_PRETARGET4,
PL_UNIX_SYMLINK_TARGET,
PL_UNIX_SYMLINK_WINDOWSEOL
} symlink;
} pl_unix_substate;
typedef enum {
PL_WINNT_DATE = 0,
PL_WINNT_TIME,
PL_WINNT_DIRORSIZE,
PL_WINNT_FILENAME
} pl_winNT_mainstate;
typedef union {
enum {
PL_WINNT_TIME_PRESPACE = 0,
PL_WINNT_TIME_TIME
} time;
enum {
PL_WINNT_DIRORSIZE_PRESPACE = 0,
PL_WINNT_DIRORSIZE_CONTENT
} dirorsize;
enum {
PL_WINNT_FILENAME_PRESPACE = 0,
PL_WINNT_FILENAME_CONTENT,
PL_WINNT_FILENAME_WINEOL
} filename;
} pl_winNT_substate;
/* This struct is used in wildcard downloading - for parsing LIST response */
struct ftp_parselist_data {
enum {
OS_TYPE_UNKNOWN = 0,
OS_TYPE_UNIX,
OS_TYPE_WIN_NT
} os_type;
union {
struct {
pl_unix_mainstate main;
pl_unix_substate sub;
} UNIX;
struct {
pl_winNT_mainstate main;
pl_winNT_substate sub;
} NT;
} state;
CURLcode error;
struct fileinfo *file_data;
unsigned int item_length;
size_t item_offset;
struct {
size_t filename;
size_t user;
size_t group;
size_t time;
size_t perm;
size_t symlink_target;
} offsets;
};
struct ftp_parselist_data *Curl_ftp_parselist_data_alloc(void)
{
return calloc(1, sizeof(struct ftp_parselist_data));
}
void Curl_ftp_parselist_data_free(struct ftp_parselist_data **parserp)
{
struct ftp_parselist_data *parser = *parserp;
if(parser)
Curl_fileinfo_cleanup(parser->file_data);
free(parser);
*parserp = NULL;
}
CURLcode Curl_ftp_parselist_geterror(struct ftp_parselist_data *pl_data)
{
return pl_data->error;
}
#define FTP_LP_MALFORMATED_PERM 0x01000000
static int ftp_pl_get_permission(const char *str)
{
int permissions = 0;
/* USER */
if(str[0] == 'r')
permissions |= 1 << 8;
else if(str[0] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[1] == 'w')
permissions |= 1 << 7;
else if(str[1] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[2] == 'x')
permissions |= 1 << 6;
else if(str[2] == 's') {
permissions |= 1 << 6;
permissions |= 1 << 11;
}
else if(str[2] == 'S')
permissions |= 1 << 11;
else if(str[2] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
/* GROUP */
if(str[3] == 'r')
permissions |= 1 << 5;
else if(str[3] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[4] == 'w')
permissions |= 1 << 4;
else if(str[4] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[5] == 'x')
permissions |= 1 << 3;
else if(str[5] == 's') {
permissions |= 1 << 3;
permissions |= 1 << 10;
}
else if(str[5] == 'S')
permissions |= 1 << 10;
else if(str[5] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
/* others */
if(str[6] == 'r')
permissions |= 1 << 2;
else if(str[6] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[7] == 'w')
permissions |= 1 << 1;
else if(str[7] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
if(str[8] == 'x')
permissions |= 1;
else if(str[8] == 't') {
permissions |= 1;
permissions |= 1 << 9;
}
else if(str[8] == 'T')
permissions |= 1 << 9;
else if(str[8] != '-')
permissions |= FTP_LP_MALFORMATED_PERM;
return permissions;
}
static CURLcode ftp_pl_insert_finfo(struct Curl_easy *data,
struct fileinfo *infop)
{
curl_fnmatch_callback compare;
struct WildcardData *wc = &data->wildcard;
struct ftp_wc *ftpwc = wc->protdata;
struct Curl_llist *llist = &wc->filelist;
struct ftp_parselist_data *parser = ftpwc->parser;
bool add = TRUE;
struct curl_fileinfo *finfo = &infop->info;
/* move finfo pointers to b_data */
char *str = finfo->b_data;
finfo->filename = str + parser->offsets.filename;
finfo->strings.group = parser->offsets.group ?
str + parser->offsets.group : NULL;
finfo->strings.perm = parser->offsets.perm ?
str + parser->offsets.perm : NULL;
finfo->strings.target = parser->offsets.symlink_target ?
str + parser->offsets.symlink_target : NULL;
finfo->strings.time = str + parser->offsets.time;
finfo->strings.user = parser->offsets.user ?
str + parser->offsets.user : NULL;
/* get correct fnmatch callback */
compare = data->set.fnmatch;
if(!compare)
compare = Curl_fnmatch;
/* filter pattern-corresponding filenames */
Curl_set_in_callback(data, true);
if(compare(data->set.fnmatch_data, wc->pattern,
finfo->filename) == 0) {
/* discard symlink which is containing multiple " -> " */
if((finfo->filetype == CURLFILETYPE_SYMLINK) && finfo->strings.target &&
(strstr(finfo->strings.target, " -> "))) {
add = FALSE;
}
}
else {
add = FALSE;
}
Curl_set_in_callback(data, false);
if(add) {
Curl_llist_insert_next(llist, llist->tail, finfo, &infop->list);
}
else {
Curl_fileinfo_cleanup(infop);
}
ftpwc->parser->file_data = NULL;
return CURLE_OK;
}
size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb,
void *connptr)
{
size_t bufflen = size*nmemb;
struct Curl_easy *data = (struct Curl_easy *)connptr;
struct ftp_wc *ftpwc = data->wildcard.protdata;
struct ftp_parselist_data *parser = ftpwc->parser;
struct fileinfo *infop;
struct curl_fileinfo *finfo;
unsigned long i = 0;
CURLcode result;
size_t retsize = bufflen;
if(parser->error) { /* error in previous call */
/* scenario:
* 1. call => OK..
* 2. call => OUT_OF_MEMORY (or other error)
* 3. (last) call => is skipped RIGHT HERE and the error is hadled later
* in wc_statemach()
*/
goto fail;
}
if(parser->os_type == OS_TYPE_UNKNOWN && bufflen > 0) {
/* considering info about FILE response format */
parser->os_type = (buffer[0] >= '0' && buffer[0] <= '9') ?
OS_TYPE_WIN_NT : OS_TYPE_UNIX;
}
while(i < bufflen) { /* FSM */
char c = buffer[i];
if(!parser->file_data) { /* tmp file data is not allocated yet */
parser->file_data = Curl_fileinfo_alloc();
if(!parser->file_data) {
parser->error = CURLE_OUT_OF_MEMORY;
goto fail;
}
parser->file_data->info.b_data = malloc(FTP_BUFFER_ALLOCSIZE);
if(!parser->file_data->info.b_data) {
parser->error = CURLE_OUT_OF_MEMORY;
goto fail;
}
parser->file_data->info.b_size = FTP_BUFFER_ALLOCSIZE;
parser->item_offset = 0;
parser->item_length = 0;
}
infop = parser->file_data;
finfo = &infop->info;
finfo->b_data[finfo->b_used++] = c;
if(finfo->b_used >= finfo->b_size - 1) {
/* if it is important, extend buffer space for file data */
char *tmp = realloc(finfo->b_data,
finfo->b_size + FTP_BUFFER_ALLOCSIZE);
if(tmp) {
finfo->b_size += FTP_BUFFER_ALLOCSIZE;
finfo->b_data = tmp;
}
else {
Curl_fileinfo_cleanup(parser->file_data);
parser->file_data = NULL;
parser->error = CURLE_OUT_OF_MEMORY;
goto fail;
}
}
switch(parser->os_type) {
case OS_TYPE_UNIX:
switch(parser->state.UNIX.main) {
case PL_UNIX_TOTALSIZE:
switch(parser->state.UNIX.sub.total_dirsize) {
case PL_UNIX_TOTALSIZE_INIT:
if(c == 't') {
parser->state.UNIX.sub.total_dirsize = PL_UNIX_TOTALSIZE_READING;
parser->item_length++;
}
else {
parser->state.UNIX.main = PL_UNIX_FILETYPE;
/* start FSM again not considering size of directory */
finfo->b_used = 0;
continue;
}
break;
case PL_UNIX_TOTALSIZE_READING:
parser->item_length++;
if(c == '\r') {
parser->item_length--;
finfo->b_used--;
}
else if(c == '\n') {
finfo->b_data[parser->item_length - 1] = 0;
if(strncmp("total ", finfo->b_data, 6) == 0) {
char *endptr = finfo->b_data + 6;
/* here we can deal with directory size, pass the leading
whitespace and then the digits */
while(ISSPACE(*endptr))
endptr++;
while(ISDIGIT(*endptr))
endptr++;
if(*endptr) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
parser->state.UNIX.main = PL_UNIX_FILETYPE;
finfo->b_used = 0;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
}
break;
case PL_UNIX_FILETYPE:
switch(c) {
case '-':
finfo->filetype = CURLFILETYPE_FILE;
break;
case 'd':
finfo->filetype = CURLFILETYPE_DIRECTORY;
break;
case 'l':
finfo->filetype = CURLFILETYPE_SYMLINK;
break;
case 'p':
finfo->filetype = CURLFILETYPE_NAMEDPIPE;
break;
case 's':
finfo->filetype = CURLFILETYPE_SOCKET;
break;
case 'c':
finfo->filetype = CURLFILETYPE_DEVICE_CHAR;
break;
case 'b':
finfo->filetype = CURLFILETYPE_DEVICE_BLOCK;
break;
case 'D':
finfo->filetype = CURLFILETYPE_DOOR;
break;
default:
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
parser->state.UNIX.main = PL_UNIX_PERMISSION;
parser->item_length = 0;
parser->item_offset = 1;
break;
case PL_UNIX_PERMISSION:
parser->item_length++;
if(parser->item_length <= 9) {
if(!strchr("rwx-tTsS", c)) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
else if(parser->item_length == 10) {
unsigned int perm;
if(c != ' ') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
finfo->b_data[10] = 0; /* terminate permissions */
perm = ftp_pl_get_permission(finfo->b_data + parser->item_offset);
if(perm & FTP_LP_MALFORMATED_PERM) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_PERM;
parser->file_data->info.perm = perm;
parser->offsets.perm = parser->item_offset;
parser->item_length = 0;
parser->state.UNIX.main = PL_UNIX_HLINKS;
parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_PRESPACE;
}
break;
case PL_UNIX_HLINKS:
switch(parser->state.UNIX.sub.hlinks) {
case PL_UNIX_HLINKS_PRESPACE:
if(c != ' ') {
if(c >= '0' && c <= '9') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.hlinks = PL_UNIX_HLINKS_NUMBER;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
case PL_UNIX_HLINKS_NUMBER:
parser->item_length ++;
if(c == ' ') {
char *p;
long int hlinks;
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
hlinks = strtol(finfo->b_data + parser->item_offset, &p, 10);
if(p[0] == '\0' && hlinks != LONG_MAX && hlinks != LONG_MIN) {
parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_HLINKCOUNT;
parser->file_data->info.hardlinks = hlinks;
}
parser->item_length = 0;
parser->item_offset = 0;
parser->state.UNIX.main = PL_UNIX_USER;
parser->state.UNIX.sub.user = PL_UNIX_USER_PRESPACE;
}
else if(c < '0' || c > '9') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
case PL_UNIX_USER:
switch(parser->state.UNIX.sub.user) {
case PL_UNIX_USER_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.user = PL_UNIX_USER_PARSING;
}
break;
case PL_UNIX_USER_PARSING:
parser->item_length++;
if(c == ' ') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.user = parser->item_offset;
parser->state.UNIX.main = PL_UNIX_GROUP;
parser->state.UNIX.sub.group = PL_UNIX_GROUP_PRESPACE;
parser->item_offset = 0;
parser->item_length = 0;
}
break;
}
break;
case PL_UNIX_GROUP:
switch(parser->state.UNIX.sub.group) {
case PL_UNIX_GROUP_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.group = PL_UNIX_GROUP_NAME;
}
break;
case PL_UNIX_GROUP_NAME:
parser->item_length++;
if(c == ' ') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.group = parser->item_offset;
parser->state.UNIX.main = PL_UNIX_SIZE;
parser->state.UNIX.sub.size = PL_UNIX_SIZE_PRESPACE;
parser->item_offset = 0;
parser->item_length = 0;
}
break;
}
break;
case PL_UNIX_SIZE:
switch(parser->state.UNIX.sub.size) {
case PL_UNIX_SIZE_PRESPACE:
if(c != ' ') {
if(c >= '0' && c <= '9') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.size = PL_UNIX_SIZE_NUMBER;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
case PL_UNIX_SIZE_NUMBER:
parser->item_length++;
if(c == ' ') {
char *p;
curl_off_t fsize;
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
if(!curlx_strtoofft(finfo->b_data + parser->item_offset,
&p, 10, &fsize)) {
if(p[0] == '\0' && fsize != CURL_OFF_T_MAX &&
fsize != CURL_OFF_T_MIN) {
parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE;
parser->file_data->info.size = fsize;
}
parser->item_length = 0;
parser->item_offset = 0;
parser->state.UNIX.main = PL_UNIX_TIME;
parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART1;
}
}
else if(!ISDIGIT(c)) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
case PL_UNIX_TIME:
switch(parser->state.UNIX.sub.time) {
case PL_UNIX_TIME_PREPART1:
if(c != ' ') {
if(ISALNUM(c)) {
parser->item_offset = finfo->b_used -1;
parser->item_length = 1;
parser->state.UNIX.sub.time = PL_UNIX_TIME_PART1;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
case PL_UNIX_TIME_PART1:
parser->item_length++;
if(c == ' ') {
parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART2;
}
else if(!ISALNUM(c) && c != '.') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
case PL_UNIX_TIME_PREPART2:
parser->item_length++;
if(c != ' ') {
if(ISALNUM(c)) {
parser->state.UNIX.sub.time = PL_UNIX_TIME_PART2;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
case PL_UNIX_TIME_PART2:
parser->item_length++;
if(c == ' ') {
parser->state.UNIX.sub.time = PL_UNIX_TIME_PREPART3;
}
else if(!ISALNUM(c) && c != '.') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
case PL_UNIX_TIME_PREPART3:
parser->item_length++;
if(c != ' ') {
if(ISALNUM(c)) {
parser->state.UNIX.sub.time = PL_UNIX_TIME_PART3;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
break;
case PL_UNIX_TIME_PART3:
parser->item_length++;
if(c == ' ') {
finfo->b_data[parser->item_offset + parser->item_length -1] = 0;
parser->offsets.time = parser->item_offset;
/*
if(ftp_pl_gettime(parser, finfo->b_data + parser->item_offset)) {
parser->file_data->flags |= CURLFINFOFLAG_KNOWN_TIME;
}
*/
if(finfo->filetype == CURLFILETYPE_SYMLINK) {
parser->state.UNIX.main = PL_UNIX_SYMLINK;
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRESPACE;
}
else {
parser->state.UNIX.main = PL_UNIX_FILENAME;
parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_PRESPACE;
}
}
else if(!ISALNUM(c) && c != '.' && c != ':') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
case PL_UNIX_FILENAME:
switch(parser->state.UNIX.sub.filename) {
case PL_UNIX_FILENAME_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_NAME;
}
break;
case PL_UNIX_FILENAME_NAME:
parser->item_length++;
if(c == '\r') {
parser->state.UNIX.sub.filename = PL_UNIX_FILENAME_WINDOWSEOL;
}
else if(c == '\n') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.filename = parser->item_offset;
parser->state.UNIX.main = PL_UNIX_FILETYPE;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
}
break;
case PL_UNIX_FILENAME_WINDOWSEOL:
if(c == '\n') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.filename = parser->item_offset;
parser->state.UNIX.main = PL_UNIX_FILETYPE;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
case PL_UNIX_SYMLINK:
switch(parser->state.UNIX.sub.symlink) {
case PL_UNIX_SYMLINK_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
}
break;
case PL_UNIX_SYMLINK_NAME:
parser->item_length++;
if(c == ' ') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET1;
}
else if(c == '\r' || c == '\n') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
case PL_UNIX_SYMLINK_PRETARGET1:
parser->item_length++;
if(c == '-') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET2;
}
else if(c == '\r' || c == '\n') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
else {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
}
break;
case PL_UNIX_SYMLINK_PRETARGET2:
parser->item_length++;
if(c == '>') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET3;
}
else if(c == '\r' || c == '\n') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
else {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
}
break;
case PL_UNIX_SYMLINK_PRETARGET3:
parser->item_length++;
if(c == ' ') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_PRETARGET4;
/* now place where is symlink following */
finfo->b_data[parser->item_offset + parser->item_length - 4] = 0;
parser->offsets.filename = parser->item_offset;
parser->item_length = 0;
parser->item_offset = 0;
}
else if(c == '\r' || c == '\n') {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
else {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_NAME;
}
break;
case PL_UNIX_SYMLINK_PRETARGET4:
if(c != '\r' && c != '\n') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_TARGET;
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
case PL_UNIX_SYMLINK_TARGET:
parser->item_length++;
if(c == '\r') {
parser->state.UNIX.sub.symlink = PL_UNIX_SYMLINK_WINDOWSEOL;
}
else if(c == '\n') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.symlink_target = parser->item_offset;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
parser->state.UNIX.main = PL_UNIX_FILETYPE;
}
break;
case PL_UNIX_SYMLINK_WINDOWSEOL:
if(c == '\n') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
parser->offsets.symlink_target = parser->item_offset;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
parser->state.UNIX.main = PL_UNIX_FILETYPE;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
}
break;
case OS_TYPE_WIN_NT:
switch(parser->state.NT.main) {
case PL_WINNT_DATE:
parser->item_length++;
if(parser->item_length < 9) {
if(!strchr("0123456789-", c)) { /* only simple control */
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
else if(parser->item_length == 9) {
if(c == ' ') {
parser->state.NT.main = PL_WINNT_TIME;
parser->state.NT.sub.time = PL_WINNT_TIME_PRESPACE;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
case PL_WINNT_TIME:
parser->item_length++;
switch(parser->state.NT.sub.time) {
case PL_WINNT_TIME_PRESPACE:
if(!ISSPACE(c)) {
parser->state.NT.sub.time = PL_WINNT_TIME_TIME;
}
break;
case PL_WINNT_TIME_TIME:
if(c == ' ') {
parser->offsets.time = parser->item_offset;
finfo->b_data[parser->item_offset + parser->item_length -1] = 0;
parser->state.NT.main = PL_WINNT_DIRORSIZE;
parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_PRESPACE;
parser->item_length = 0;
}
else if(!strchr("APM0123456789:", c)) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
case PL_WINNT_DIRORSIZE:
switch(parser->state.NT.sub.dirorsize) {
case PL_WINNT_DIRORSIZE_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used - 1;
parser->item_length = 1;
parser->state.NT.sub.dirorsize = PL_WINNT_DIRORSIZE_CONTENT;
}
break;
case PL_WINNT_DIRORSIZE_CONTENT:
parser->item_length ++;
if(c == ' ') {
finfo->b_data[parser->item_offset + parser->item_length - 1] = 0;
if(strcmp("<DIR>", finfo->b_data + parser->item_offset) == 0) {
finfo->filetype = CURLFILETYPE_DIRECTORY;
finfo->size = 0;
}
else {
char *endptr;
if(curlx_strtoofft(finfo->b_data +
parser->item_offset,
&endptr, 10, &finfo->size)) {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
/* correct file type */
parser->file_data->info.filetype = CURLFILETYPE_FILE;
}
parser->file_data->info.flags |= CURLFINFOFLAG_KNOWN_SIZE;
parser->item_length = 0;
parser->state.NT.main = PL_WINNT_FILENAME;
parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
}
break;
}
break;
case PL_WINNT_FILENAME:
switch(parser->state.NT.sub.filename) {
case PL_WINNT_FILENAME_PRESPACE:
if(c != ' ') {
parser->item_offset = finfo->b_used -1;
parser->item_length = 1;
parser->state.NT.sub.filename = PL_WINNT_FILENAME_CONTENT;
}
break;
case PL_WINNT_FILENAME_CONTENT:
parser->item_length++;
if(c == '\r') {
parser->state.NT.sub.filename = PL_WINNT_FILENAME_WINEOL;
finfo->b_data[finfo->b_used - 1] = 0;
}
else if(c == '\n') {
parser->offsets.filename = parser->item_offset;
finfo->b_data[finfo->b_used - 1] = 0;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
parser->state.NT.main = PL_WINNT_DATE;
parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
}
break;
case PL_WINNT_FILENAME_WINEOL:
if(c == '\n') {
parser->offsets.filename = parser->item_offset;
result = ftp_pl_insert_finfo(data, infop);
if(result) {
parser->error = result;
goto fail;
}
parser->state.NT.main = PL_WINNT_DATE;
parser->state.NT.sub.filename = PL_WINNT_FILENAME_PRESPACE;
}
else {
parser->error = CURLE_FTP_BAD_FILE_LIST;
goto fail;
}
break;
}
break;
}
break;
default:
retsize = bufflen + 1;
goto fail;
}
i++;
}
return retsize;
fail:
/* Clean up any allocated memory. */
if(parser->file_data) {
Curl_fileinfo_cleanup(parser->file_data);
parser->file_data = NULL;
}
return retsize;
}
#endif /* CURL_DISABLE_FTP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/x509asn1.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_GSKIT) || defined(USE_NSS) || defined(USE_GNUTLS) || \
defined(USE_WOLFSSL) || defined(USE_SCHANNEL) || defined(USE_SECTRANSP)
#include <curl/curl.h>
#include "urldata.h"
#include "strcase.h"
#include "hostcheck.h"
#include "vtls/vtls.h"
#include "sendf.h"
#include "inet_pton.h"
#include "curl_base64.h"
#include "x509asn1.h"
#include "dynbuf.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* ASN.1 OIDs. */
static const char cnOID[] = "2.5.4.3"; /* Common name. */
static const char sanOID[] = "2.5.29.17"; /* Subject alternative name. */
static const struct Curl_OID OIDtable[] = {
{ "1.2.840.10040.4.1", "dsa" },
{ "1.2.840.10040.4.3", "dsa-with-sha1" },
{ "1.2.840.10045.2.1", "ecPublicKey" },
{ "1.2.840.10045.3.0.1", "c2pnb163v1" },
{ "1.2.840.10045.4.1", "ecdsa-with-SHA1" },
{ "1.2.840.10046.2.1", "dhpublicnumber" },
{ "1.2.840.113549.1.1.1", "rsaEncryption" },
{ "1.2.840.113549.1.1.2", "md2WithRSAEncryption" },
{ "1.2.840.113549.1.1.4", "md5WithRSAEncryption" },
{ "1.2.840.113549.1.1.5", "sha1WithRSAEncryption" },
{ "1.2.840.113549.1.1.10", "RSASSA-PSS" },
{ "1.2.840.113549.1.1.14", "sha224WithRSAEncryption" },
{ "1.2.840.113549.1.1.11", "sha256WithRSAEncryption" },
{ "1.2.840.113549.1.1.12", "sha384WithRSAEncryption" },
{ "1.2.840.113549.1.1.13", "sha512WithRSAEncryption" },
{ "1.2.840.113549.2.2", "md2" },
{ "1.2.840.113549.2.5", "md5" },
{ "1.3.14.3.2.26", "sha1" },
{ cnOID, "CN" },
{ "2.5.4.4", "SN" },
{ "2.5.4.5", "serialNumber" },
{ "2.5.4.6", "C" },
{ "2.5.4.7", "L" },
{ "2.5.4.8", "ST" },
{ "2.5.4.9", "streetAddress" },
{ "2.5.4.10", "O" },
{ "2.5.4.11", "OU" },
{ "2.5.4.12", "title" },
{ "2.5.4.13", "description" },
{ "2.5.4.17", "postalCode" },
{ "2.5.4.41", "name" },
{ "2.5.4.42", "givenName" },
{ "2.5.4.43", "initials" },
{ "2.5.4.44", "generationQualifier" },
{ "2.5.4.45", "X500UniqueIdentifier" },
{ "2.5.4.46", "dnQualifier" },
{ "2.5.4.65", "pseudonym" },
{ "1.2.840.113549.1.9.1", "emailAddress" },
{ "2.5.4.72", "role" },
{ sanOID, "subjectAltName" },
{ "2.5.29.18", "issuerAltName" },
{ "2.5.29.19", "basicConstraints" },
{ "2.16.840.1.101.3.4.2.4", "sha224" },
{ "2.16.840.1.101.3.4.2.1", "sha256" },
{ "2.16.840.1.101.3.4.2.2", "sha384" },
{ "2.16.840.1.101.3.4.2.3", "sha512" },
{ (const char *) NULL, (const char *) NULL }
};
/*
* Lightweight ASN.1 parser.
* In particular, it does not check for syntactic/lexical errors.
* It is intended to support certificate information gathering for SSL backends
* that offer a mean to get certificates as a whole, but do not supply
* entry points to get particular certificate sub-fields.
* Please note there is no pretention here to rewrite a full SSL library.
*/
static const char *getASN1Element(struct Curl_asn1Element *elem,
const char *beg, const char *end)
WARN_UNUSED_RESULT;
static const char *getASN1Element(struct Curl_asn1Element *elem,
const char *beg, const char *end)
{
unsigned char b;
unsigned long len;
struct Curl_asn1Element lelem;
/* Get a single ASN.1 element into `elem', parse ASN.1 string at `beg'
ending at `end'.
Returns a pointer in source string after the parsed element, or NULL
if an error occurs. */
if(!beg || !end || beg >= end || !*beg ||
(size_t)(end - beg) > CURL_ASN1_MAX)
return NULL;
/* Process header byte. */
elem->header = beg;
b = (unsigned char) *beg++;
elem->constructed = (b & 0x20) != 0;
elem->class = (b >> 6) & 3;
b &= 0x1F;
if(b == 0x1F)
return NULL; /* Long tag values not supported here. */
elem->tag = b;
/* Process length. */
if(beg >= end)
return NULL;
b = (unsigned char) *beg++;
if(!(b & 0x80))
len = b;
else if(!(b &= 0x7F)) {
/* Unspecified length. Since we have all the data, we can determine the
effective length by skipping element until an end element is found. */
if(!elem->constructed)
return NULL;
elem->beg = beg;
while(beg < end && *beg) {
beg = getASN1Element(&lelem, beg, end);
if(!beg)
return NULL;
}
if(beg >= end)
return NULL;
elem->end = beg;
return beg + 1;
}
else if((unsigned)b > (size_t)(end - beg))
return NULL; /* Does not fit in source. */
else {
/* Get long length. */
len = 0;
do {
if(len & 0xFF000000L)
return NULL; /* Lengths > 32 bits are not supported. */
len = (len << 8) | (unsigned char) *beg++;
} while(--b);
}
if(len > (size_t)(end - beg))
return NULL; /* Element data does not fit in source. */
elem->beg = beg;
elem->end = beg + len;
return elem->end;
}
/*
* Search the null terminated OID or OID identifier in local table.
* Return the table entry pointer or NULL if not found.
*/
static const struct Curl_OID *searchOID(const char *oid)
{
const struct Curl_OID *op;
for(op = OIDtable; op->numoid; op++)
if(!strcmp(op->numoid, oid) || strcasecompare(op->textoid, oid))
return op;
return NULL;
}
/*
* Convert an ASN.1 Boolean value into its string representation. Return the
* dynamically allocated string, or NULL if source is not an ASN.1 Boolean
* value.
*/
static const char *bool2str(const char *beg, const char *end)
{
if(end - beg != 1)
return NULL;
return strdup(*beg? "TRUE": "FALSE");
}
/*
* Convert an ASN.1 octet string to a printable string.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *octet2str(const char *beg, const char *end)
{
struct dynbuf buf;
CURLcode result;
Curl_dyn_init(&buf, 3 * CURL_ASN1_MAX + 1);
result = Curl_dyn_addn(&buf, "", 0);
while(!result && beg < end)
result = Curl_dyn_addf(&buf, "%02x:", (unsigned char) *beg++);
return Curl_dyn_ptr(&buf);
}
static const char *bit2str(const char *beg, const char *end)
{
/* Convert an ASN.1 bit string to a printable string.
Return the dynamically allocated string, or NULL if an error occurs. */
if(++beg > end)
return NULL;
return octet2str(beg, end);
}
/*
* Convert an ASN.1 integer value into its string representation.
* Return the dynamically allocated string, or NULL if source is not an
* ASN.1 integer value.
*/
static const char *int2str(const char *beg, const char *end)
{
unsigned long val = 0;
size_t n = end - beg;
if(!n)
return NULL;
if(n > 4)
return octet2str(beg, end);
/* Represent integers <= 32-bit as a single value. */
if(*beg & 0x80)
val = ~val;
do
val = (val << 8) | *(const unsigned char *) beg++;
while(beg < end);
return curl_maprintf("%s%lx", val >= 10? "0x": "", val);
}
/*
* Perform a lazy conversion from an ASN.1 typed string to UTF8. Allocate the
* destination buffer dynamically. The allocation size will normally be too
* large: this is to avoid buffer overflows.
* Terminate the string with a nul byte and return the converted
* string length.
*/
static ssize_t
utf8asn1str(char **to, int type, const char *from, const char *end)
{
size_t inlength = end - from;
int size = 1;
size_t outlength;
char *buf;
*to = NULL;
switch(type) {
case CURL_ASN1_BMP_STRING:
size = 2;
break;
case CURL_ASN1_UNIVERSAL_STRING:
size = 4;
break;
case CURL_ASN1_NUMERIC_STRING:
case CURL_ASN1_PRINTABLE_STRING:
case CURL_ASN1_TELETEX_STRING:
case CURL_ASN1_IA5_STRING:
case CURL_ASN1_VISIBLE_STRING:
case CURL_ASN1_UTF8_STRING:
break;
default:
return -1; /* Conversion not supported. */
}
if(inlength % size)
return -1; /* Length inconsistent with character size. */
if(inlength / size > (SIZE_T_MAX - 1) / 4)
return -1; /* Too big. */
buf = malloc(4 * (inlength / size) + 1);
if(!buf)
return -1; /* Not enough memory. */
if(type == CURL_ASN1_UTF8_STRING) {
/* Just copy. */
outlength = inlength;
if(outlength)
memcpy(buf, from, outlength);
}
else {
for(outlength = 0; from < end;) {
int charsize;
unsigned int wc;
wc = 0;
switch(size) {
case 4:
wc = (wc << 8) | *(const unsigned char *) from++;
wc = (wc << 8) | *(const unsigned char *) from++;
/* FALLTHROUGH */
case 2:
wc = (wc << 8) | *(const unsigned char *) from++;
/* FALLTHROUGH */
default: /* case 1: */
wc = (wc << 8) | *(const unsigned char *) from++;
}
charsize = 1;
if(wc >= 0x00000080) {
if(wc >= 0x00000800) {
if(wc >= 0x00010000) {
if(wc >= 0x00200000) {
free(buf);
return -1; /* Invalid char. size for target encoding. */
}
buf[outlength + 3] = (char) (0x80 | (wc & 0x3F));
wc = (wc >> 6) | 0x00010000;
charsize++;
}
buf[outlength + 2] = (char) (0x80 | (wc & 0x3F));
wc = (wc >> 6) | 0x00000800;
charsize++;
}
buf[outlength + 1] = (char) (0x80 | (wc & 0x3F));
wc = (wc >> 6) | 0x000000C0;
charsize++;
}
buf[outlength] = (char) wc;
outlength += charsize;
}
}
buf[outlength] = '\0';
*to = buf;
return outlength;
}
/*
* Convert an ASN.1 String into its UTF-8 string representation.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *string2str(int type, const char *beg, const char *end)
{
char *buf;
if(utf8asn1str(&buf, type, beg, end) < 0)
return NULL;
return buf;
}
/*
* Decimal ASCII encode unsigned integer `x' into the buflen sized buffer at
* buf. Return the total number of encoded digits, even if larger than
* `buflen'.
*/
static size_t encodeUint(char *buf, size_t buflen, unsigned int x)
{
size_t i = 0;
unsigned int y = x / 10;
if(y) {
i = encodeUint(buf, buflen, y);
x -= y * 10;
}
if(i < buflen)
buf[i] = (char) ('0' + x);
i++;
if(i < buflen)
buf[i] = '\0'; /* Store a terminator if possible. */
return i;
}
/*
* Convert an ASN.1 OID into its dotted string representation.
* Store the result in th `n'-byte buffer at `buf'.
* Return the converted string length, or 0 on errors.
*/
static size_t encodeOID(char *buf, size_t buflen,
const char *beg, const char *end)
{
size_t i;
unsigned int x;
unsigned int y;
/* Process the first two numbers. */
y = *(const unsigned char *) beg++;
x = y / 40;
y -= x * 40;
i = encodeUint(buf, buflen, x);
if(i < buflen)
buf[i] = '.';
i++;
if(i >= buflen)
i += encodeUint(NULL, 0, y);
else
i += encodeUint(buf + i, buflen - i, y);
/* Process the trailing numbers. */
while(beg < end) {
if(i < buflen)
buf[i] = '.';
i++;
x = 0;
do {
if(x & 0xFF000000)
return 0;
y = *(const unsigned char *) beg++;
x = (x << 7) | (y & 0x7F);
} while(y & 0x80);
if(i >= buflen)
i += encodeUint(NULL, 0, x);
else
i += encodeUint(buf + i, buflen - i, x);
}
if(i < buflen)
buf[i] = '\0';
return i;
}
/*
* Convert an ASN.1 OID into its dotted or symbolic string representation.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *OID2str(const char *beg, const char *end, bool symbolic)
{
char *buf = NULL;
if(beg < end) {
size_t buflen = encodeOID(NULL, 0, beg, end);
if(buflen) {
buf = malloc(buflen + 1); /* one extra for the zero byte */
if(buf) {
encodeOID(buf, buflen, beg, end);
buf[buflen] = '\0';
if(symbolic) {
const struct Curl_OID *op = searchOID(buf);
if(op) {
free(buf);
buf = strdup(op->textoid);
}
}
}
}
}
return buf;
}
static const char *GTime2str(const char *beg, const char *end)
{
const char *tzp;
const char *fracp;
char sec1, sec2;
size_t fracl;
size_t tzl;
const char *sep = "";
/* Convert an ASN.1 Generalized time to a printable string.
Return the dynamically allocated string, or NULL if an error occurs. */
for(fracp = beg; fracp < end && *fracp >= '0' && *fracp <= '9'; fracp++)
;
/* Get seconds digits. */
sec1 = '0';
switch(fracp - beg - 12) {
case 0:
sec2 = '0';
break;
case 2:
sec1 = fracp[-2];
/* FALLTHROUGH */
case 1:
sec2 = fracp[-1];
break;
default:
return NULL;
}
/* Scan for timezone, measure fractional seconds. */
tzp = fracp;
fracl = 0;
if(fracp < end && (*fracp == '.' || *fracp == ',')) {
fracp++;
do
tzp++;
while(tzp < end && *tzp >= '0' && *tzp <= '9');
/* Strip leading zeroes in fractional seconds. */
for(fracl = tzp - fracp - 1; fracl && fracp[fracl - 1] == '0'; fracl--)
;
}
/* Process timezone. */
if(tzp >= end)
; /* Nothing to do. */
else if(*tzp == 'Z') {
tzp = " GMT";
end = tzp + 4;
}
else {
sep = " ";
tzp++;
}
tzl = end - tzp;
return curl_maprintf("%.4s-%.2s-%.2s %.2s:%.2s:%c%c%s%.*s%s%.*s",
beg, beg + 4, beg + 6,
beg + 8, beg + 10, sec1, sec2,
fracl? ".": "", (int)fracl, fracp,
sep, (int)tzl, tzp);
}
/*
* Convert an ASN.1 UTC time to a printable string.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *UTime2str(const char *beg, const char *end)
{
const char *tzp;
size_t tzl;
const char *sec;
for(tzp = beg; tzp < end && *tzp >= '0' && *tzp <= '9'; tzp++)
;
/* Get the seconds. */
sec = beg + 10;
switch(tzp - sec) {
case 0:
sec = "00";
case 2:
break;
default:
return NULL;
}
/* Process timezone. */
if(tzp >= end)
return NULL;
if(*tzp == 'Z') {
tzp = "GMT";
end = tzp + 3;
}
else
tzp++;
tzl = end - tzp;
return curl_maprintf("%u%.2s-%.2s-%.2s %.2s:%.2s:%.2s %.*s",
20 - (*beg >= '5'), beg, beg + 2, beg + 4,
beg + 6, beg + 8, sec,
(int)tzl, tzp);
}
/*
* Convert an ASN.1 element to a printable string.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *ASN1tostr(struct Curl_asn1Element *elem, int type)
{
if(elem->constructed)
return NULL; /* No conversion of structured elements. */
if(!type)
type = elem->tag; /* Type not forced: use element tag as type. */
switch(type) {
case CURL_ASN1_BOOLEAN:
return bool2str(elem->beg, elem->end);
case CURL_ASN1_INTEGER:
case CURL_ASN1_ENUMERATED:
return int2str(elem->beg, elem->end);
case CURL_ASN1_BIT_STRING:
return bit2str(elem->beg, elem->end);
case CURL_ASN1_OCTET_STRING:
return octet2str(elem->beg, elem->end);
case CURL_ASN1_NULL:
return strdup("");
case CURL_ASN1_OBJECT_IDENTIFIER:
return OID2str(elem->beg, elem->end, TRUE);
case CURL_ASN1_UTC_TIME:
return UTime2str(elem->beg, elem->end);
case CURL_ASN1_GENERALIZED_TIME:
return GTime2str(elem->beg, elem->end);
case CURL_ASN1_UTF8_STRING:
case CURL_ASN1_NUMERIC_STRING:
case CURL_ASN1_PRINTABLE_STRING:
case CURL_ASN1_TELETEX_STRING:
case CURL_ASN1_IA5_STRING:
case CURL_ASN1_VISIBLE_STRING:
case CURL_ASN1_UNIVERSAL_STRING:
case CURL_ASN1_BMP_STRING:
return string2str(type, elem->beg, elem->end);
}
return NULL; /* Unsupported. */
}
/*
* ASCII encode distinguished name at `dn' into the `buflen'-sized buffer at
* `buf'. Return the total string length, even if larger than `buflen'.
*/
static ssize_t encodeDN(char *buf, size_t buflen, struct Curl_asn1Element *dn)
{
struct Curl_asn1Element rdn;
struct Curl_asn1Element atv;
struct Curl_asn1Element oid;
struct Curl_asn1Element value;
size_t l = 0;
const char *p1;
const char *p2;
const char *p3;
const char *str;
for(p1 = dn->beg; p1 < dn->end;) {
p1 = getASN1Element(&rdn, p1, dn->end);
if(!p1)
return -1;
for(p2 = rdn.beg; p2 < rdn.end;) {
p2 = getASN1Element(&atv, p2, rdn.end);
if(!p2)
return -1;
p3 = getASN1Element(&oid, atv.beg, atv.end);
if(!p3)
return -1;
if(!getASN1Element(&value, p3, atv.end))
return -1;
str = ASN1tostr(&oid, 0);
if(!str)
return -1;
/* Encode delimiter.
If attribute has a short uppercase name, delimiter is ", ". */
if(l) {
for(p3 = str; isupper(*p3); p3++)
;
for(p3 = (*p3 || p3 - str > 2)? "/": ", "; *p3; p3++) {
if(l < buflen)
buf[l] = *p3;
l++;
}
}
/* Encode attribute name. */
for(p3 = str; *p3; p3++) {
if(l < buflen)
buf[l] = *p3;
l++;
}
free((char *) str);
/* Generate equal sign. */
if(l < buflen)
buf[l] = '=';
l++;
/* Generate value. */
str = ASN1tostr(&value, 0);
if(!str)
return -1;
for(p3 = str; *p3; p3++) {
if(l < buflen)
buf[l] = *p3;
l++;
}
free((char *) str);
}
}
return l;
}
/*
* Convert an ASN.1 distinguished name into a printable string.
* Return the dynamically allocated string, or NULL if an error occurs.
*/
static const char *DNtostr(struct Curl_asn1Element *dn)
{
char *buf = NULL;
ssize_t buflen = encodeDN(NULL, 0, dn);
if(buflen >= 0) {
buf = malloc(buflen + 1);
if(buf) {
encodeDN(buf, buflen + 1, dn);
buf[buflen] = '\0';
}
}
return buf;
}
/*
* ASN.1 parse an X509 certificate into structure subfields.
* Syntax is assumed to have already been checked by the SSL backend.
* See RFC 5280.
*/
int Curl_parseX509(struct Curl_X509certificate *cert,
const char *beg, const char *end)
{
struct Curl_asn1Element elem;
struct Curl_asn1Element tbsCertificate;
const char *ccp;
static const char defaultVersion = 0; /* v1. */
cert->certificate.header = NULL;
cert->certificate.beg = beg;
cert->certificate.end = end;
/* Get the sequence content. */
if(!getASN1Element(&elem, beg, end))
return -1; /* Invalid bounds/size. */
beg = elem.beg;
end = elem.end;
/* Get tbsCertificate. */
beg = getASN1Element(&tbsCertificate, beg, end);
if(!beg)
return -1;
/* Skip the signatureAlgorithm. */
beg = getASN1Element(&cert->signatureAlgorithm, beg, end);
if(!beg)
return -1;
/* Get the signatureValue. */
if(!getASN1Element(&cert->signature, beg, end))
return -1;
/* Parse TBSCertificate. */
beg = tbsCertificate.beg;
end = tbsCertificate.end;
/* Get optional version, get serialNumber. */
cert->version.header = NULL;
cert->version.beg = &defaultVersion;
cert->version.end = &defaultVersion + sizeof(defaultVersion);
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
if(elem.tag == 0) {
if(!getASN1Element(&cert->version, elem.beg, elem.end))
return -1;
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
}
cert->serialNumber = elem;
/* Get signature algorithm. */
beg = getASN1Element(&cert->signatureAlgorithm, beg, end);
/* Get issuer. */
beg = getASN1Element(&cert->issuer, beg, end);
if(!beg)
return -1;
/* Get notBefore and notAfter. */
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
ccp = getASN1Element(&cert->notBefore, elem.beg, elem.end);
if(!ccp)
return -1;
if(!getASN1Element(&cert->notAfter, ccp, elem.end))
return -1;
/* Get subject. */
beg = getASN1Element(&cert->subject, beg, end);
if(!beg)
return -1;
/* Get subjectPublicKeyAlgorithm and subjectPublicKey. */
beg = getASN1Element(&cert->subjectPublicKeyInfo, beg, end);
if(!beg)
return -1;
ccp = getASN1Element(&cert->subjectPublicKeyAlgorithm,
cert->subjectPublicKeyInfo.beg,
cert->subjectPublicKeyInfo.end);
if(!ccp)
return -1;
if(!getASN1Element(&cert->subjectPublicKey, ccp,
cert->subjectPublicKeyInfo.end))
return -1;
/* Get optional issuerUiqueID, subjectUniqueID and extensions. */
cert->issuerUniqueID.tag = cert->subjectUniqueID.tag = 0;
cert->extensions.tag = elem.tag = 0;
cert->issuerUniqueID.header = cert->subjectUniqueID.header = NULL;
cert->issuerUniqueID.beg = cert->issuerUniqueID.end = "";
cert->subjectUniqueID.beg = cert->subjectUniqueID.end = "";
cert->extensions.header = NULL;
cert->extensions.beg = cert->extensions.end = "";
if(beg < end) {
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
}
if(elem.tag == 1) {
cert->issuerUniqueID = elem;
if(beg < end) {
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
}
}
if(elem.tag == 2) {
cert->subjectUniqueID = elem;
if(beg < end) {
beg = getASN1Element(&elem, beg, end);
if(!beg)
return -1;
}
}
if(elem.tag == 3)
if(!getASN1Element(&cert->extensions, elem.beg, elem.end))
return -1;
return 0;
}
/*
* Copy at most 64-characters, terminate with a newline and returns the
* effective number of stored characters.
*/
static size_t copySubstring(char *to, const char *from)
{
size_t i;
for(i = 0; i < 64; i++) {
to[i] = *from;
if(!*from++)
break;
}
to[i++] = '\n';
return i;
}
static const char *dumpAlgo(struct Curl_asn1Element *param,
const char *beg, const char *end)
{
struct Curl_asn1Element oid;
/* Get algorithm parameters and return algorithm name. */
beg = getASN1Element(&oid, beg, end);
if(!beg)
return NULL;
param->header = NULL;
param->tag = 0;
param->beg = param->end = end;
if(beg < end)
if(!getASN1Element(param, beg, end))
return NULL;
return OID2str(oid.beg, oid.end, TRUE);
}
static void do_pubkey_field(struct Curl_easy *data, int certnum,
const char *label, struct Curl_asn1Element *elem)
{
const char *output;
/* Generate a certificate information record for the public key. */
output = ASN1tostr(elem, 0);
if(output) {
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, label, output);
if(!certnum)
infof(data, " %s: %s", label, output);
free((char *) output);
}
}
static void do_pubkey(struct Curl_easy *data, int certnum,
const char *algo, struct Curl_asn1Element *param,
struct Curl_asn1Element *pubkey)
{
struct Curl_asn1Element elem;
struct Curl_asn1Element pk;
const char *p;
/* Generate all information records for the public key. */
/* Get the public key (single element). */
if(!getASN1Element(&pk, pubkey->beg + 1, pubkey->end))
return;
if(strcasecompare(algo, "rsaEncryption")) {
const char *q;
unsigned long len;
p = getASN1Element(&elem, pk.beg, pk.end);
if(!p)
return;
/* Compute key length. */
for(q = elem.beg; !*q && q < elem.end; q++)
;
len = (unsigned long)((elem.end - q) * 8);
if(len) {
unsigned int i;
for(i = *(unsigned char *) q; !(i & 0x80); i <<= 1)
len--;
}
if(len > 32)
elem.beg = q; /* Strip leading zero bytes. */
if(!certnum)
infof(data, " RSA Public Key (%lu bits)", len);
if(data->set.ssl.certinfo) {
q = curl_maprintf("%lu", len);
if(q) {
Curl_ssl_push_certinfo(data, certnum, "RSA Public Key", q);
free((char *) q);
}
}
/* Generate coefficients. */
do_pubkey_field(data, certnum, "rsa(n)", &elem);
if(!getASN1Element(&elem, p, pk.end))
return;
do_pubkey_field(data, certnum, "rsa(e)", &elem);
}
else if(strcasecompare(algo, "dsa")) {
p = getASN1Element(&elem, param->beg, param->end);
if(p) {
do_pubkey_field(data, certnum, "dsa(p)", &elem);
p = getASN1Element(&elem, p, param->end);
if(p) {
do_pubkey_field(data, certnum, "dsa(q)", &elem);
if(getASN1Element(&elem, p, param->end)) {
do_pubkey_field(data, certnum, "dsa(g)", &elem);
do_pubkey_field(data, certnum, "dsa(pub_key)", &pk);
}
}
}
}
else if(strcasecompare(algo, "dhpublicnumber")) {
p = getASN1Element(&elem, param->beg, param->end);
if(p) {
do_pubkey_field(data, certnum, "dh(p)", &elem);
if(getASN1Element(&elem, param->beg, param->end)) {
do_pubkey_field(data, certnum, "dh(g)", &elem);
do_pubkey_field(data, certnum, "dh(pub_key)", &pk);
}
}
}
}
CURLcode Curl_extract_certinfo(struct Curl_easy *data,
int certnum,
const char *beg,
const char *end)
{
struct Curl_X509certificate cert;
struct Curl_asn1Element param;
const char *ccp;
char *cp1;
size_t cl1;
char *cp2;
CURLcode result;
unsigned long version;
size_t i;
size_t j;
if(!data->set.ssl.certinfo)
if(certnum)
return CURLE_OK;
/* Prepare the certificate information for curl_easy_getinfo(). */
/* Extract the certificate ASN.1 elements. */
if(Curl_parseX509(&cert, beg, end))
return CURLE_PEER_FAILED_VERIFICATION;
/* Subject. */
ccp = DNtostr(&cert.subject);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Subject", ccp);
if(!certnum)
infof(data, "%2d Subject: %s", certnum, ccp);
free((char *) ccp);
/* Issuer. */
ccp = DNtostr(&cert.issuer);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Issuer", ccp);
if(!certnum)
infof(data, " Issuer: %s", ccp);
free((char *) ccp);
/* Version (always fits in less than 32 bits). */
version = 0;
for(ccp = cert.version.beg; ccp < cert.version.end; ccp++)
version = (version << 8) | *(const unsigned char *) ccp;
if(data->set.ssl.certinfo) {
ccp = curl_maprintf("%lx", version);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
Curl_ssl_push_certinfo(data, certnum, "Version", ccp);
free((char *) ccp);
}
if(!certnum)
infof(data, " Version: %lu (0x%lx)", version + 1, version);
/* Serial number. */
ccp = ASN1tostr(&cert.serialNumber, 0);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Serial Number", ccp);
if(!certnum)
infof(data, " Serial Number: %s", ccp);
free((char *) ccp);
/* Signature algorithm .*/
ccp = dumpAlgo(¶m, cert.signatureAlgorithm.beg,
cert.signatureAlgorithm.end);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Signature Algorithm", ccp);
if(!certnum)
infof(data, " Signature Algorithm: %s", ccp);
free((char *) ccp);
/* Start Date. */
ccp = ASN1tostr(&cert.notBefore, 0);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Start Date", ccp);
if(!certnum)
infof(data, " Start Date: %s", ccp);
free((char *) ccp);
/* Expire Date. */
ccp = ASN1tostr(&cert.notAfter, 0);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Expire Date", ccp);
if(!certnum)
infof(data, " Expire Date: %s", ccp);
free((char *) ccp);
/* Public Key Algorithm. */
ccp = dumpAlgo(¶m, cert.subjectPublicKeyAlgorithm.beg,
cert.subjectPublicKeyAlgorithm.end);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Public Key Algorithm", ccp);
if(!certnum)
infof(data, " Public Key Algorithm: %s", ccp);
do_pubkey(data, certnum, ccp, ¶m, &cert.subjectPublicKey);
free((char *) ccp);
/* Signature. */
ccp = ASN1tostr(&cert.signature, 0);
if(!ccp)
return CURLE_OUT_OF_MEMORY;
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Signature", ccp);
if(!certnum)
infof(data, " Signature: %s", ccp);
free((char *) ccp);
/* Generate PEM certificate. */
result = Curl_base64_encode(data, cert.certificate.beg,
cert.certificate.end - cert.certificate.beg,
&cp1, &cl1);
if(result)
return result;
/* Compute the number of characters in final certificate string. Format is:
-----BEGIN CERTIFICATE-----\n
<max 64 base64 characters>\n
.
.
.
-----END CERTIFICATE-----\n
*/
i = 28 + cl1 + (cl1 + 64 - 1) / 64 + 26;
cp2 = malloc(i + 1);
if(!cp2) {
free(cp1);
return CURLE_OUT_OF_MEMORY;
}
/* Build the certificate string. */
i = copySubstring(cp2, "-----BEGIN CERTIFICATE-----");
for(j = 0; j < cl1; j += 64)
i += copySubstring(cp2 + i, cp1 + j);
i += copySubstring(cp2 + i, "-----END CERTIFICATE-----");
cp2[i] = '\0';
free(cp1);
if(data->set.ssl.certinfo)
Curl_ssl_push_certinfo(data, certnum, "Cert", cp2);
if(!certnum)
infof(data, "%s", cp2);
free(cp2);
return CURLE_OK;
}
#endif /* USE_GSKIT or USE_NSS or USE_GNUTLS or USE_WOLFSSL or USE_SCHANNEL
* or USE_SECTRANSP */
#if defined(USE_GSKIT)
static const char *checkOID(const char *beg, const char *end,
const char *oid)
{
struct Curl_asn1Element e;
const char *ccp;
const char *p;
bool matched;
/* Check if first ASN.1 element at `beg' is the given OID.
Return a pointer in the source after the OID if found, else NULL. */
ccp = getASN1Element(&e, beg, end);
if(!ccp || e.tag != CURL_ASN1_OBJECT_IDENTIFIER)
return NULL;
p = OID2str(e.beg, e.end, FALSE);
if(!p)
return NULL;
matched = !strcmp(p, oid);
free((char *) p);
return matched? ccp: NULL;
}
CURLcode Curl_verifyhost(struct Curl_easy *data, struct connectdata *conn,
const char *beg, const char *end)
{
struct Curl_X509certificate cert;
struct Curl_asn1Element dn;
struct Curl_asn1Element elem;
struct Curl_asn1Element ext;
struct Curl_asn1Element name;
const char *p;
const char *q;
char *dnsname;
int matched = -1;
size_t addrlen = (size_t) -1;
ssize_t len;
const char * const hostname = SSL_HOST_NAME();
const char * const dispname = SSL_HOST_DISPNAME();
#ifdef ENABLE_IPV6
struct in6_addr addr;
#else
struct in_addr addr;
#endif
/* Verify that connection server matches info in X509 certificate at
`beg'..`end'. */
if(!SSL_CONN_CONFIG(verifyhost))
return CURLE_OK;
if(Curl_parseX509(&cert, beg, end))
return CURLE_PEER_FAILED_VERIFICATION;
/* Get the server IP address. */
#ifdef ENABLE_IPV6
if(conn->bits.ipv6_ip && Curl_inet_pton(AF_INET6, hostname, &addr))
addrlen = sizeof(struct in6_addr);
else
#endif
if(Curl_inet_pton(AF_INET, hostname, &addr))
addrlen = sizeof(struct in_addr);
/* Process extensions. */
for(p = cert.extensions.beg; p < cert.extensions.end && matched != 1;) {
p = getASN1Element(&ext, p, cert.extensions.end);
if(!p)
return CURLE_PEER_FAILED_VERIFICATION;
/* Check if extension is a subjectAlternativeName. */
ext.beg = checkOID(ext.beg, ext.end, sanOID);
if(ext.beg) {
ext.beg = getASN1Element(&elem, ext.beg, ext.end);
if(!ext.beg)
return CURLE_PEER_FAILED_VERIFICATION;
/* Skip critical if present. */
if(elem.tag == CURL_ASN1_BOOLEAN) {
ext.beg = getASN1Element(&elem, ext.beg, ext.end);
if(!ext.beg)
return CURLE_PEER_FAILED_VERIFICATION;
}
/* Parse the octet string contents: is a single sequence. */
if(!getASN1Element(&elem, elem.beg, elem.end))
return CURLE_PEER_FAILED_VERIFICATION;
/* Check all GeneralNames. */
for(q = elem.beg; matched != 1 && q < elem.end;) {
q = getASN1Element(&name, q, elem.end);
if(!q)
break;
switch(name.tag) {
case 2: /* DNS name. */
len = utf8asn1str(&dnsname, CURL_ASN1_IA5_STRING,
name.beg, name.end);
if(len > 0 && (size_t)len == strlen(dnsname))
matched = Curl_cert_hostcheck(dnsname, hostname);
else
matched = 0;
free(dnsname);
break;
case 7: /* IP address. */
matched = (size_t) (name.end - name.beg) == addrlen &&
!memcmp(&addr, name.beg, addrlen);
break;
}
}
}
}
switch(matched) {
case 1:
/* an alternative name matched the server hostname */
infof(data, " subjectAltName: %s matched", dispname);
return CURLE_OK;
case 0:
/* an alternative name field existed, but didn't match and then
we MUST fail */
infof(data, " subjectAltName does not match %s", dispname);
return CURLE_PEER_FAILED_VERIFICATION;
}
/* Process subject. */
name.header = NULL;
name.beg = name.end = "";
q = cert.subject.beg;
/* we have to look to the last occurrence of a commonName in the
distinguished one to get the most significant one. */
while(q < cert.subject.end) {
q = getASN1Element(&dn, q, cert.subject.end);
if(!q)
break;
for(p = dn.beg; p < dn.end;) {
p = getASN1Element(&elem, p, dn.end);
if(!p)
return CURLE_PEER_FAILED_VERIFICATION;
/* We have a DN's AttributeTypeAndValue: check it in case it's a CN. */
elem.beg = checkOID(elem.beg, elem.end, cnOID);
if(elem.beg)
name = elem; /* Latch CN. */
}
}
/* Check the CN if found. */
if(!getASN1Element(&elem, name.beg, name.end))
failf(data, "SSL: unable to obtain common name from peer certificate");
else {
len = utf8asn1str(&dnsname, elem.tag, elem.beg, elem.end);
if(len < 0) {
free(dnsname);
return CURLE_OUT_OF_MEMORY;
}
if(strlen(dnsname) != (size_t) len) /* Nul byte in string ? */
failf(data, "SSL: illegal cert name field");
else if(Curl_cert_hostcheck((const char *) dnsname, hostname)) {
infof(data, " common name: %s (matched)", dnsname);
free(dnsname);
return CURLE_OK;
}
else
failf(data, "SSL: certificate subject name '%s' does not match "
"target host name '%s'", dnsname, dispname);
free(dnsname);
}
return CURLE_PEER_FAILED_VERIFICATION;
}
#endif /* USE_GSKIT */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/amigaos.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef __AMIGA__
# include "amigaos.h"
# if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
# include <amitcp/socketbasetags.h>
# endif
# ifdef __libnix__
# include <stabs.h>
# endif
#endif
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
#ifdef __AMIGA__
#if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
struct Library *SocketBase = NULL;
extern int errno, h_errno;
#ifdef __libnix__
void __request(const char *msg);
#else
# define __request(msg) Printf(msg "\n\a")
#endif
void Curl_amiga_cleanup()
{
if(SocketBase) {
CloseLibrary(SocketBase);
SocketBase = NULL;
}
}
bool Curl_amiga_init()
{
if(!SocketBase)
SocketBase = OpenLibrary("bsdsocket.library", 4);
if(!SocketBase) {
__request("No TCP/IP Stack running!");
return FALSE;
}
if(SocketBaseTags(SBTM_SETVAL(SBTC_ERRNOPTR(sizeof(errno))), (ULONG) &errno,
SBTM_SETVAL(SBTC_LOGTAGPTR), (ULONG) "curl",
TAG_DONE)) {
__request("SocketBaseTags ERROR");
return FALSE;
}
#ifndef __libnix__
atexit(Curl_amiga_cleanup);
#endif
return TRUE;
}
#ifdef __libnix__
ADD2EXIT(Curl_amiga_cleanup, -50);
#endif
#endif /* HAVE_PROTO_BSDSOCKET_H */
#ifdef USE_AMISSL
void Curl_amiga_X509_free(X509 *a)
{
X509_free(a);
}
/* AmiSSL replaces many functions with macros. Curl requires pointer
* to some of these functions. Thus, we have to encapsulate these macros.
*/
#include "warnless.h"
int (SHA256_Init)(SHA256_CTX *c)
{
return SHA256_Init(c);
};
int (SHA256_Update)(SHA256_CTX *c, const void *data, size_t len)
{
return SHA256_Update(c, data, curlx_uztoui(len));
};
int (SHA256_Final)(unsigned char *md, SHA256_CTX *c)
{
return SHA256_Final(md, c);
};
void (X509_INFO_free)(X509_INFO *a)
{
X509_INFO_free(a);
};
#endif /* USE_AMISSL */
#endif /* __AMIGA__ */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/easyif.h | #ifndef HEADER_CURL_EASYIF_H
#define HEADER_CURL_EASYIF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Prototypes for library-wide functions provided by easy.c
*/
#ifdef CURLDEBUG
CURL_EXTERN CURLcode curl_easy_perform_ev(struct Curl_easy *easy);
#endif
#endif /* HEADER_CURL_EASYIF_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http_aws_sigv4.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_CRYPTO_AUTH)
#include "urldata.h"
#include "strcase.h"
#include "strdup.h"
#include "vauth/vauth.h"
#include "vauth/digest.h"
#include "http_aws_sigv4.h"
#include "curl_sha256.h"
#include "transfer.h"
#include "strcase.h"
#include "parsedate.h"
#include "sendf.h"
#include <time.h>
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define HMAC_SHA256(k, kl, d, dl, o) \
do { \
ret = Curl_hmacit(Curl_HMAC_SHA256, \
(unsigned char *)k, \
(unsigned int)kl, \
(unsigned char *)d, \
(unsigned int)dl, o); \
if(ret != CURLE_OK) { \
goto fail; \
} \
} while(0)
static void sha256_to_hex(char *dst, unsigned char *sha, size_t dst_l)
{
int i;
DEBUGASSERT(dst_l >= 65);
for(i = 0; i < 32; ++i) {
curl_msnprintf(dst + (i * 2), dst_l - (i * 2), "%02x", sha[i]);
}
}
CURLcode Curl_output_aws_sigv4(struct Curl_easy *data, bool proxy)
{
CURLcode ret = CURLE_OUT_OF_MEMORY;
struct connectdata *conn = data->conn;
size_t len;
const char *tmp0;
const char *tmp1;
char *provider0_low = NULL;
char *provider0_up = NULL;
char *provider1_low = NULL;
char *provider1_mid = NULL;
char *region = NULL;
char *service = NULL;
const char *hostname = conn->host.name;
#ifdef DEBUGBUILD
char *force_timestamp;
#endif
time_t clock;
struct tm tm;
char timestamp[17];
char date[9];
const char *content_type = Curl_checkheaders(data, "Content-Type");
char *canonical_headers = NULL;
char *signed_headers = NULL;
Curl_HttpReq httpreq;
const char *method;
size_t post_data_len;
const char *post_data = data->set.postfields ? data->set.postfields : "";
unsigned char sha_hash[32];
char sha_hex[65];
char *canonical_request = NULL;
char *request_type = NULL;
char *credential_scope = NULL;
char *str_to_sign = NULL;
const char *user = data->state.aptr.user ? data->state.aptr.user : "";
const char *passwd = data->state.aptr.passwd ? data->state.aptr.passwd : "";
char *secret = NULL;
unsigned char tmp_sign0[32] = {0};
unsigned char tmp_sign1[32] = {0};
char *auth_headers = NULL;
DEBUGASSERT(!proxy);
(void)proxy;
if(Curl_checkheaders(data, "Authorization")) {
/* Authorization already present, Bailing out */
return CURLE_OK;
}
/*
* Parameters parsing
* Google and Outscale use the same OSC or GOOG,
* but Amazon uses AWS and AMZ for header arguments.
* AWS is the default because most of non-amazon providers
* are still using aws:amz as a prefix.
*/
tmp0 = data->set.str[STRING_AWS_SIGV4] ?
data->set.str[STRING_AWS_SIGV4] : "aws:amz";
tmp1 = strchr(tmp0, ':');
len = tmp1 ? (size_t)(tmp1 - tmp0) : strlen(tmp0);
if(len < 1) {
infof(data, "first provider can't be empty");
ret = CURLE_BAD_FUNCTION_ARGUMENT;
goto fail;
}
provider0_low = malloc(len + 1);
provider0_up = malloc(len + 1);
if(!provider0_low || !provider0_up) {
goto fail;
}
Curl_strntolower(provider0_low, tmp0, len);
provider0_low[len] = '\0';
Curl_strntoupper(provider0_up, tmp0, len);
provider0_up[len] = '\0';
if(tmp1) {
tmp0 = tmp1 + 1;
tmp1 = strchr(tmp0, ':');
len = tmp1 ? (size_t)(tmp1 - tmp0) : strlen(tmp0);
if(len < 1) {
infof(data, "second provider can't be empty");
ret = CURLE_BAD_FUNCTION_ARGUMENT;
goto fail;
}
provider1_low = malloc(len + 1);
provider1_mid = malloc(len + 1);
if(!provider1_low || !provider1_mid) {
goto fail;
}
Curl_strntolower(provider1_low, tmp0, len);
provider1_low[len] = '\0';
Curl_strntolower(provider1_mid, tmp0, len);
provider1_mid[0] = Curl_raw_toupper(provider1_mid[0]);
provider1_mid[len] = '\0';
if(tmp1) {
tmp0 = tmp1 + 1;
tmp1 = strchr(tmp0, ':');
len = tmp1 ? (size_t)(tmp1 - tmp0) : strlen(tmp0);
if(len < 1) {
infof(data, "region can't be empty");
ret = CURLE_BAD_FUNCTION_ARGUMENT;
goto fail;
}
region = Curl_memdup(tmp0, len + 1);
if(!region) {
goto fail;
}
region[len] = '\0';
if(tmp1) {
tmp0 = tmp1 + 1;
service = strdup(tmp0);
if(!service) {
goto fail;
}
if(strlen(service) < 1) {
infof(data, "service can't be empty");
ret = CURLE_BAD_FUNCTION_ARGUMENT;
goto fail;
}
}
}
}
else {
provider1_low = Curl_memdup(provider0_low, len + 1);
provider1_mid = Curl_memdup(provider0_low, len + 1);
if(!provider1_low || !provider1_mid) {
goto fail;
}
provider1_mid[0] = Curl_raw_toupper(provider1_mid[0]);
}
if(!service) {
tmp0 = hostname;
tmp1 = strchr(tmp0, '.');
len = tmp1 - tmp0;
if(!tmp1 || len < 1) {
infof(data, "service missing in parameters or hostname");
ret = CURLE_URL_MALFORMAT;
goto fail;
}
service = Curl_memdup(tmp0, len + 1);
if(!service) {
goto fail;
}
service[len] = '\0';
if(!region) {
tmp0 = tmp1 + 1;
tmp1 = strchr(tmp0, '.');
len = tmp1 - tmp0;
if(!tmp1 || len < 1) {
infof(data, "region missing in parameters or hostname");
ret = CURLE_URL_MALFORMAT;
goto fail;
}
region = Curl_memdup(tmp0, len + 1);
if(!region) {
goto fail;
}
region[len] = '\0';
}
}
#ifdef DEBUGBUILD
force_timestamp = getenv("CURL_FORCETIME");
if(force_timestamp)
clock = 0;
else
time(&clock);
#else
time(&clock);
#endif
ret = Curl_gmtime(clock, &tm);
if(ret != CURLE_OK) {
goto fail;
}
if(!strftime(timestamp, sizeof(timestamp), "%Y%m%dT%H%M%SZ", &tm)) {
goto fail;
}
memcpy(date, timestamp, sizeof(date));
date[sizeof(date) - 1] = 0;
if(content_type) {
content_type = strchr(content_type, ':');
if(!content_type) {
ret = CURLE_FAILED_INIT;
goto fail;
}
content_type++;
/* Skip whitespace now */
while(*content_type == ' ' || *content_type == '\t')
++content_type;
canonical_headers = curl_maprintf("content-type:%s\n"
"host:%s\n"
"x-%s-date:%s\n",
content_type,
hostname,
provider1_low, timestamp);
signed_headers = curl_maprintf("content-type;host;x-%s-date",
provider1_low);
}
else {
canonical_headers = curl_maprintf("host:%s\n"
"x-%s-date:%s\n",
hostname,
provider1_low, timestamp);
signed_headers = curl_maprintf("host;x-%s-date", provider1_low);
}
if(!canonical_headers || !signed_headers) {
goto fail;
}
if(data->set.postfieldsize < 0)
post_data_len = strlen(post_data);
else
post_data_len = (size_t)data->set.postfieldsize;
Curl_sha256it(sha_hash,
(const unsigned char *) post_data, post_data_len);
sha256_to_hex(sha_hex, sha_hash, sizeof(sha_hex));
Curl_http_method(data, conn, &method, &httpreq);
canonical_request =
curl_maprintf("%s\n" /* HTTPRequestMethod */
"%s\n" /* CanonicalURI */
"%s\n" /* CanonicalQueryString */
"%s\n" /* CanonicalHeaders */
"%s\n" /* SignedHeaders */
"%s", /* HashedRequestPayload in hex */
method,
data->state.up.path,
data->state.up.query ? data->state.up.query : "",
canonical_headers,
signed_headers,
sha_hex);
if(!canonical_request) {
goto fail;
}
request_type = curl_maprintf("%s4_request", provider0_low);
if(!request_type) {
goto fail;
}
credential_scope = curl_maprintf("%s/%s/%s/%s",
date, region, service, request_type);
if(!credential_scope) {
goto fail;
}
Curl_sha256it(sha_hash, (unsigned char *) canonical_request,
strlen(canonical_request));
sha256_to_hex(sha_hex, sha_hash, sizeof(sha_hex));
/*
* Google allow to use rsa key instead of HMAC, so this code might change
* In the future, but for now we support only HMAC version
*/
str_to_sign = curl_maprintf("%s4-HMAC-SHA256\n" /* Algorithm */
"%s\n" /* RequestDateTime */
"%s\n" /* CredentialScope */
"%s", /* HashedCanonicalRequest in hex */
provider0_up,
timestamp,
credential_scope,
sha_hex);
if(!str_to_sign) {
goto fail;
}
secret = curl_maprintf("%s4%s", provider0_up, passwd);
if(!secret) {
goto fail;
}
HMAC_SHA256(secret, strlen(secret),
date, strlen(date), tmp_sign0);
HMAC_SHA256(tmp_sign0, sizeof(tmp_sign0),
region, strlen(region), tmp_sign1);
HMAC_SHA256(tmp_sign1, sizeof(tmp_sign1),
service, strlen(service), tmp_sign0);
HMAC_SHA256(tmp_sign0, sizeof(tmp_sign0),
request_type, strlen(request_type), tmp_sign1);
HMAC_SHA256(tmp_sign1, sizeof(tmp_sign1),
str_to_sign, strlen(str_to_sign), tmp_sign0);
sha256_to_hex(sha_hex, tmp_sign0, sizeof(sha_hex));
auth_headers = curl_maprintf("Authorization: %s4-HMAC-SHA256 "
"Credential=%s/%s, "
"SignedHeaders=%s, "
"Signature=%s\r\n"
"X-%s-Date: %s\r\n",
provider0_up,
user,
credential_scope,
signed_headers,
sha_hex,
provider1_mid,
timestamp);
if(!auth_headers) {
goto fail;
}
Curl_safefree(data->state.aptr.userpwd);
data->state.aptr.userpwd = auth_headers;
data->state.authhost.done = TRUE;
ret = CURLE_OK;
fail:
free(provider0_low);
free(provider0_up);
free(provider1_low);
free(provider1_mid);
free(region);
free(service);
free(canonical_headers);
free(signed_headers);
free(canonical_request);
free(request_type);
free(credential_scope);
free(str_to_sign);
free(secret);
return ret;
}
#endif /* !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_CRYPTO_AUTH) */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/bufref.h | #ifndef HEADER_CURL_BUFREF_H
#define HEADER_CURL_BUFREF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Generic buffer reference.
*/
struct bufref {
void (*dtor)(void *); /* Associated destructor. */
const unsigned char *ptr; /* Referenced data buffer. */
size_t len; /* The data size in bytes. */
#ifdef DEBUGBUILD
int signature; /* Detect API use mistakes. */
#endif
};
void Curl_bufref_init(struct bufref *br);
void Curl_bufref_set(struct bufref *br, const void *ptr, size_t len,
void (*dtor)(void *));
const unsigned char *Curl_bufref_ptr(const struct bufref *br);
size_t Curl_bufref_len(const struct bufref *br);
CURLcode Curl_bufref_memdup(struct bufref *br, const void *ptr, size_t len);
void Curl_bufref_free(struct bufref *br);
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/firefox-db2pem.sh | #!/bin/sh
# ***************************************************************************
# * _ _ ____ _
# * Project ___| | | | _ \| |
# * / __| | | | |_) | |
# * | (__| |_| | _ <| |___
# * \___|\___/|_| \_\_____|
# *
# * Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
# *
# * This software is licensed as described in the file COPYING, which
# * you should have received as part of this distribution. The terms
# * are also available at https://curl.se/docs/copyright.html.
# *
# * You may opt to use, copy, modify, merge, publish, distribute and/or sell
# * copies of the Software, and permit persons to whom the Software is
# * furnished to do so, under the terms of the COPYING file.
# *
# * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# * KIND, either express or implied.
# *
# ***************************************************************************
# This shell script creates a fresh ca-bundle.crt file for use with libcurl.
# It extracts all ca certs it finds in the local Firefox database and converts
# them all into PEM format.
#
db=`ls -1d $HOME/.mozilla/firefox/*default*`
out=$1
if test -z "$out"; then
out="ca-bundle.crt" # use a sensible default
fi
currentdate=`date`
cat >$out <<EOF
##
## Bundle of CA Root Certificates
##
## Converted at: ${currentdate}
## These were converted from the local Firefox directory by the db2pem script.
##
EOF
certutil -L -h 'Builtin Object Token' -d $db | \
grep ' *[CcGTPpu]*,[CcGTPpu]*,[CcGTPpu]* *$' | \
sed -e 's/ *[CcGTPpu]*,[CcGTPpu]*,[CcGTPpu]* *$//' -e 's/\(.*\)/"\1"/' | \
sort | \
while read nickname; \
do echo $nickname | sed -e "s/Builtin Object Token://g"; \
eval certutil -d $db -L -n "$nickname" -a ; \
done >> $out
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/file.h | #ifndef HEADER_CURL_FILE_H
#define HEADER_CURL_FILE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/****************************************************************************
* FILE unique setup
***************************************************************************/
struct FILEPROTO {
char *path; /* the path we operate on */
char *freepath; /* pointer to the allocated block we must free, this might
differ from the 'path' pointer */
int fd; /* open file descriptor to read from! */
};
#ifndef CURL_DISABLE_FILE
extern const struct Curl_handler Curl_handler_file;
#endif
#endif /* HEADER_CURL_FILE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_endian.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "curl_endian.h"
/*
* Curl_read16_le()
*
* This function converts a 16-bit integer from the little endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 2 byte buffer.
*
* Returns the integer.
*/
unsigned short Curl_read16_le(const unsigned char *buf)
{
return (unsigned short)(((unsigned short)buf[0]) |
((unsigned short)buf[1] << 8));
}
/*
* Curl_read32_le()
*
* This function converts a 32-bit integer from the little endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 4 byte buffer.
*
* Returns the integer.
*/
unsigned int Curl_read32_le(const unsigned char *buf)
{
return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) |
((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24);
}
/*
* Curl_read16_be()
*
* This function converts a 16-bit integer from the big endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 2 byte buffer.
*
* Returns the integer.
*/
unsigned short Curl_read16_be(const unsigned char *buf)
{
return (unsigned short)(((unsigned short)buf[0] << 8) |
((unsigned short)buf[1]));
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_ntlm_wb.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
/*
* NTLM details:
*
* https://davenport.sourceforge.io/ntlm.html
* https://www.innovation.ch/java/ntlm.html
*/
#define DEBUG_ME 0
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "select.h"
#include "vauth/ntlm.h"
#include "curl_ntlm_core.h"
#include "curl_ntlm_wb.h"
#include "url.h"
#include "strerror.h"
#include "strdup.h"
#include "strcase.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if DEBUG_ME
# define DEBUG_OUT(x) x
#else
# define DEBUG_OUT(x) Curl_nop_stmt
#endif
/* Portable 'sclose_nolog' used only in child process instead of 'sclose'
to avoid fooling the socket leak detector */
#if defined(HAVE_CLOSESOCKET)
# define sclose_nolog(x) closesocket((x))
#elif defined(HAVE_CLOSESOCKET_CAMEL)
# define sclose_nolog(x) CloseSocket((x))
#else
# define sclose_nolog(x) close((x))
#endif
static void ntlm_wb_cleanup(struct ntlmdata *ntlm)
{
if(ntlm->ntlm_auth_hlpr_socket != CURL_SOCKET_BAD) {
sclose(ntlm->ntlm_auth_hlpr_socket);
ntlm->ntlm_auth_hlpr_socket = CURL_SOCKET_BAD;
}
if(ntlm->ntlm_auth_hlpr_pid) {
int i;
for(i = 0; i < 4; i++) {
pid_t ret = waitpid(ntlm->ntlm_auth_hlpr_pid, NULL, WNOHANG);
if(ret == ntlm->ntlm_auth_hlpr_pid || errno == ECHILD)
break;
switch(i) {
case 0:
kill(ntlm->ntlm_auth_hlpr_pid, SIGTERM);
break;
case 1:
/* Give the process another moment to shut down cleanly before
bringing down the axe */
Curl_wait_ms(1);
break;
case 2:
kill(ntlm->ntlm_auth_hlpr_pid, SIGKILL);
break;
case 3:
break;
}
}
ntlm->ntlm_auth_hlpr_pid = 0;
}
Curl_safefree(ntlm->challenge);
Curl_safefree(ntlm->response);
}
static CURLcode ntlm_wb_init(struct Curl_easy *data, struct ntlmdata *ntlm,
const char *userp)
{
curl_socket_t sockfds[2];
pid_t child_pid;
const char *username;
char *slash, *domain = NULL;
const char *ntlm_auth = NULL;
char *ntlm_auth_alloc = NULL;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
struct passwd pw, *pw_res;
char pwbuf[1024];
#endif
char buffer[STRERROR_LEN];
#if defined(CURL_DISABLE_VERBOSE_STRINGS)
(void) data;
#endif
/* Return if communication with ntlm_auth already set up */
if(ntlm->ntlm_auth_hlpr_socket != CURL_SOCKET_BAD ||
ntlm->ntlm_auth_hlpr_pid)
return CURLE_OK;
username = userp;
/* The real ntlm_auth really doesn't like being invoked with an
empty username. It won't make inferences for itself, and expects
the client to do so (mostly because it's really designed for
servers like squid to use for auth, and client support is an
afterthought for it). So try hard to provide a suitable username
if we don't already have one. But if we can't, provide the
empty one anyway. Perhaps they have an implementation of the
ntlm_auth helper which *doesn't* need it so we might as well try */
if(!username || !username[0]) {
username = getenv("NTLMUSER");
if(!username || !username[0])
username = getenv("LOGNAME");
if(!username || !username[0])
username = getenv("USER");
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
if((!username || !username[0]) &&
!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res) &&
pw_res) {
username = pw.pw_name;
}
#endif
if(!username || !username[0])
username = userp;
}
slash = strpbrk(username, "\\/");
if(slash) {
domain = strdup(username);
if(!domain)
return CURLE_OUT_OF_MEMORY;
slash = domain + (slash - username);
*slash = '\0';
username = username + (slash - domain) + 1;
}
/* For testing purposes, when DEBUGBUILD is defined and environment
variable CURL_NTLM_WB_FILE is set a fake_ntlm is used to perform
NTLM challenge/response which only accepts commands and output
strings pre-written in test case definitions */
#ifdef DEBUGBUILD
ntlm_auth_alloc = curl_getenv("CURL_NTLM_WB_FILE");
if(ntlm_auth_alloc)
ntlm_auth = ntlm_auth_alloc;
else
#endif
ntlm_auth = NTLM_WB_FILE;
if(access(ntlm_auth, X_OK) != 0) {
failf(data, "Could not access ntlm_auth: %s errno %d: %s",
ntlm_auth, errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
if(Curl_socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds)) {
failf(data, "Could not open socket pair. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
child_pid = fork();
if(child_pid == -1) {
sclose(sockfds[0]);
sclose(sockfds[1]);
failf(data, "Could not fork. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
else if(!child_pid) {
/*
* child process
*/
/* Don't use sclose in the child since it fools the socket leak detector */
sclose_nolog(sockfds[0]);
if(dup2(sockfds[1], STDIN_FILENO) == -1) {
failf(data, "Could not redirect child stdin. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
if(dup2(sockfds[1], STDOUT_FILENO) == -1) {
failf(data, "Could not redirect child stdout. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
if(domain)
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
"--domain", domain,
NULL);
else
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
NULL);
sclose_nolog(sockfds[1]);
failf(data, "Could not execl(). errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
sclose(sockfds[1]);
ntlm->ntlm_auth_hlpr_socket = sockfds[0];
ntlm->ntlm_auth_hlpr_pid = child_pid;
free(domain);
free(ntlm_auth_alloc);
return CURLE_OK;
done:
free(domain);
free(ntlm_auth_alloc);
return CURLE_REMOTE_ACCESS_DENIED;
}
/* if larger than this, something is seriously wrong */
#define MAX_NTLM_WB_RESPONSE 100000
static CURLcode ntlm_wb_response(struct Curl_easy *data, struct ntlmdata *ntlm,
const char *input, curlntlm state)
{
size_t len_in = strlen(input), len_out = 0;
struct dynbuf b;
char *ptr = NULL;
unsigned char *buf = (unsigned char *)data->state.buffer;
Curl_dyn_init(&b, MAX_NTLM_WB_RESPONSE);
while(len_in > 0) {
ssize_t written = swrite(ntlm->ntlm_auth_hlpr_socket, input, len_in);
if(written == -1) {
/* Interrupted by a signal, retry it */
if(errno == EINTR)
continue;
/* write failed if other errors happen */
goto done;
}
input += written;
len_in -= written;
}
/* Read one line */
while(1) {
ssize_t size =
sread(ntlm->ntlm_auth_hlpr_socket, buf, data->set.buffer_size);
if(size == -1) {
if(errno == EINTR)
continue;
goto done;
}
else if(size == 0)
goto done;
if(Curl_dyn_addn(&b, buf, size))
goto done;
len_out = Curl_dyn_len(&b);
ptr = Curl_dyn_ptr(&b);
if(len_out && ptr[len_out - 1] == '\n') {
ptr[len_out - 1] = '\0';
break; /* done! */
}
/* loop */
}
/* Samba/winbind installed but not configured */
if(state == NTLMSTATE_TYPE1 &&
len_out == 3 &&
ptr[0] == 'P' && ptr[1] == 'W')
goto done;
/* invalid response */
if(len_out < 4)
goto done;
if(state == NTLMSTATE_TYPE1 &&
(ptr[0]!='Y' || ptr[1]!='R' || ptr[2]!=' '))
goto done;
if(state == NTLMSTATE_TYPE2 &&
(ptr[0]!='K' || ptr[1]!='K' || ptr[2]!=' ') &&
(ptr[0]!='A' || ptr[1]!='F' || ptr[2]!=' '))
goto done;
ntlm->response = strdup(ptr + 3);
Curl_dyn_free(&b);
if(!ntlm->response)
return CURLE_OUT_OF_MEMORY;
return CURLE_OK;
done:
Curl_dyn_free(&b);
return CURLE_REMOTE_ACCESS_DENIED;
}
CURLcode Curl_input_ntlm_wb(struct Curl_easy *data,
struct connectdata *conn,
bool proxy,
const char *header)
{
struct ntlmdata *ntlm = proxy ? &conn->proxyntlm : &conn->ntlm;
curlntlm *state = proxy ? &conn->proxy_ntlm_state : &conn->http_ntlm_state;
(void) data; /* In case it gets unused by nop log macros. */
if(!checkprefix("NTLM", header))
return CURLE_BAD_CONTENT_ENCODING;
header += strlen("NTLM");
while(*header && ISSPACE(*header))
header++;
if(*header) {
ntlm->challenge = strdup(header);
if(!ntlm->challenge)
return CURLE_OUT_OF_MEMORY;
*state = NTLMSTATE_TYPE2; /* We got a type-2 message */
}
else {
if(*state == NTLMSTATE_LAST) {
infof(data, "NTLM auth restarted");
Curl_http_auth_cleanup_ntlm_wb(conn);
}
else if(*state == NTLMSTATE_TYPE3) {
infof(data, "NTLM handshake rejected");
Curl_http_auth_cleanup_ntlm_wb(conn);
*state = NTLMSTATE_NONE;
return CURLE_REMOTE_ACCESS_DENIED;
}
else if(*state >= NTLMSTATE_TYPE1) {
infof(data, "NTLM handshake failure (internal error)");
return CURLE_REMOTE_ACCESS_DENIED;
}
*state = NTLMSTATE_TYPE1; /* We should send away a type-1 */
}
return CURLE_OK;
}
/*
* This is for creating ntlm header output by delegating challenge/response
* to Samba's winbind daemon helper ntlm_auth.
*/
CURLcode Curl_output_ntlm_wb(struct Curl_easy *data, struct connectdata *conn,
bool proxy)
{
/* point to the address of the pointer that holds the string to send to the
server, which is for a plain host or for a HTTP proxy */
char **allocuserpwd;
/* point to the name and password for this */
const char *userp;
struct ntlmdata *ntlm;
curlntlm *state;
struct auth *authp;
CURLcode res = CURLE_OK;
DEBUGASSERT(conn);
DEBUGASSERT(data);
if(proxy) {
#ifndef CURL_DISABLE_PROXY
allocuserpwd = &data->state.aptr.proxyuserpwd;
userp = conn->http_proxy.user;
ntlm = &conn->proxyntlm;
state = &conn->proxy_ntlm_state;
authp = &data->state.authproxy;
#else
return CURLE_NOT_BUILT_IN;
#endif
}
else {
allocuserpwd = &data->state.aptr.userpwd;
userp = conn->user;
ntlm = &conn->ntlm;
state = &conn->http_ntlm_state;
authp = &data->state.authhost;
}
authp->done = FALSE;
/* not set means empty */
if(!userp)
userp = "";
switch(*state) {
case NTLMSTATE_TYPE1:
default:
/* Use Samba's 'winbind' daemon to support NTLM authentication,
* by delegating the NTLM challenge/response protocol to a helper
* in ntlm_auth.
* https://web.archive.org/web/20190925164737
* /devel.squid-cache.org/ntlm/squid_helper_protocol.html
* https://www.samba.org/samba/docs/man/manpages-3/winbindd.8.html
* https://www.samba.org/samba/docs/man/manpages-3/ntlm_auth.1.html
* Preprocessor symbol 'NTLM_WB_ENABLED' is defined when this
* feature is enabled and 'NTLM_WB_FILE' symbol holds absolute
* filename of ntlm_auth helper.
* If NTLM authentication using winbind fails, go back to original
* request handling process.
*/
/* Create communication with ntlm_auth */
res = ntlm_wb_init(data, ntlm, userp);
if(res)
return res;
res = ntlm_wb_response(data, ntlm, "YR\n", *state);
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
proxy ? "Proxy-" : "",
ntlm->response);
DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
Curl_safefree(ntlm->response);
if(!*allocuserpwd)
return CURLE_OUT_OF_MEMORY;
break;
case NTLMSTATE_TYPE2: {
char *input = aprintf("TT %s\n", ntlm->challenge);
if(!input)
return CURLE_OUT_OF_MEMORY;
res = ntlm_wb_response(data, ntlm, input, *state);
free(input);
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: NTLM %s\r\n",
proxy ? "Proxy-" : "",
ntlm->response);
DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
*state = NTLMSTATE_TYPE3; /* we sent a type-3 */
authp->done = TRUE;
Curl_http_auth_cleanup_ntlm_wb(conn);
if(!*allocuserpwd)
return CURLE_OUT_OF_MEMORY;
break;
}
case NTLMSTATE_TYPE3:
/* connection is already authenticated,
* don't send a header in future requests */
*state = NTLMSTATE_LAST;
/* FALLTHROUGH */
case NTLMSTATE_LAST:
Curl_safefree(*allocuserpwd);
authp->done = TRUE;
break;
}
return CURLE_OK;
}
void Curl_http_auth_cleanup_ntlm_wb(struct connectdata *conn)
{
ntlm_wb_cleanup(&conn->ntlm);
ntlm_wb_cleanup(&conn->proxyntlm);
}
#endif /* !CURL_DISABLE_HTTP && USE_NTLM && NTLM_WB_ENABLED */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/psl.h | #ifndef HEADER_PSL_H
#define HEADER_PSL_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifdef USE_LIBPSL
#include <libpsl.h>
#define PSL_TTL (72 * 3600) /* PSL time to live before a refresh. */
struct PslCache {
const psl_ctx_t *psl; /* The PSL. */
time_t expires; /* Time this PSL life expires. */
bool dynamic; /* PSL should be released when no longer needed. */
};
const psl_ctx_t *Curl_psl_use(struct Curl_easy *easy);
void Curl_psl_release(struct Curl_easy *easy);
void Curl_psl_destroy(struct PslCache *pslcache);
#else
#define Curl_psl_use(easy) NULL
#define Curl_psl_release(easy)
#define Curl_psl_destroy(pslcache)
#endif /* USE_LIBPSL */
#endif /* HEADER_PSL_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/version_win32.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2016 - 2021, Steve Holme, <[email protected]>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(WIN32)
#include <curl/curl.h>
#include "version_win32.h"
#include "warnless.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/* This Unicode version struct works for VerifyVersionInfoW (OSVERSIONINFOEXW)
and RtlVerifyVersionInfo (RTLOSVERSIONINFOEXW) */
struct OUR_OSVERSIONINFOEXW {
ULONG dwOSVersionInfoSize;
ULONG dwMajorVersion;
ULONG dwMinorVersion;
ULONG dwBuildNumber;
ULONG dwPlatformId;
WCHAR szCSDVersion[128];
USHORT wServicePackMajor;
USHORT wServicePackMinor;
USHORT wSuiteMask;
UCHAR wProductType;
UCHAR wReserved;
};
/*
* curlx_verify_windows_version()
*
* This is used to verify if we are running on a specific windows version.
*
* Parameters:
*
* majorVersion [in] - The major version number.
* minorVersion [in] - The minor version number.
* platform [in] - The optional platform identifier.
* condition [in] - The test condition used to specifier whether we are
* checking a version less then, equal to or greater than
* what is specified in the major and minor version
* numbers.
*
* Returns TRUE if matched; otherwise FALSE.
*/
bool curlx_verify_windows_version(const unsigned int majorVersion,
const unsigned int minorVersion,
const PlatformIdentifier platform,
const VersionCondition condition)
{
bool matched = FALSE;
#if defined(CURL_WINDOWS_APP)
/* We have no way to determine the Windows version from Windows apps,
so let's assume we're running on the target Windows version. */
const WORD fullVersion = MAKEWORD(minorVersion, majorVersion);
const WORD targetVersion = (WORD)_WIN32_WINNT;
switch(condition) {
case VERSION_LESS_THAN:
matched = targetVersion < fullVersion;
break;
case VERSION_LESS_THAN_EQUAL:
matched = targetVersion <= fullVersion;
break;
case VERSION_EQUAL:
matched = targetVersion == fullVersion;
break;
case VERSION_GREATER_THAN_EQUAL:
matched = targetVersion >= fullVersion;
break;
case VERSION_GREATER_THAN:
matched = targetVersion > fullVersion;
break;
}
if(matched && (platform == PLATFORM_WINDOWS)) {
/* we're always running on PLATFORM_WINNT */
matched = FALSE;
}
#elif !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_WIN2K) || \
(_WIN32_WINNT < _WIN32_WINNT_WIN2K)
OSVERSIONINFO osver;
memset(&osver, 0, sizeof(osver));
osver.dwOSVersionInfoSize = sizeof(osver);
/* Find out Windows version */
if(GetVersionEx(&osver)) {
/* Verify the Operating System version number */
switch(condition) {
case VERSION_LESS_THAN:
if(osver.dwMajorVersion < majorVersion ||
(osver.dwMajorVersion == majorVersion &&
osver.dwMinorVersion < minorVersion))
matched = TRUE;
break;
case VERSION_LESS_THAN_EQUAL:
if(osver.dwMajorVersion < majorVersion ||
(osver.dwMajorVersion == majorVersion &&
osver.dwMinorVersion <= minorVersion))
matched = TRUE;
break;
case VERSION_EQUAL:
if(osver.dwMajorVersion == majorVersion &&
osver.dwMinorVersion == minorVersion)
matched = TRUE;
break;
case VERSION_GREATER_THAN_EQUAL:
if(osver.dwMajorVersion > majorVersion ||
(osver.dwMajorVersion == majorVersion &&
osver.dwMinorVersion >= minorVersion))
matched = TRUE;
break;
case VERSION_GREATER_THAN:
if(osver.dwMajorVersion > majorVersion ||
(osver.dwMajorVersion == majorVersion &&
osver.dwMinorVersion > minorVersion))
matched = TRUE;
break;
}
/* Verify the platform identifier (if necessary) */
if(matched) {
switch(platform) {
case PLATFORM_WINDOWS:
if(osver.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS)
matched = FALSE;
break;
case PLATFORM_WINNT:
if(osver.dwPlatformId != VER_PLATFORM_WIN32_NT)
matched = FALSE;
default: /* like platform == PLATFORM_DONT_CARE */
break;
}
}
}
#else
ULONGLONG cm = 0;
struct OUR_OSVERSIONINFOEXW osver;
BYTE majorCondition;
BYTE minorCondition;
BYTE spMajorCondition;
BYTE spMinorCondition;
typedef LONG (APIENTRY *RTLVERIFYVERSIONINFO_FN)
(struct OUR_OSVERSIONINFOEXW *, ULONG, ULONGLONG);
static RTLVERIFYVERSIONINFO_FN pRtlVerifyVersionInfo;
static bool onetime = true; /* safe because first call is during init */
if(onetime) {
pRtlVerifyVersionInfo = CURLX_FUNCTION_CAST(RTLVERIFYVERSIONINFO_FN,
(GetProcAddress(GetModuleHandleA("ntdll"), "RtlVerifyVersionInfo")));
onetime = false;
}
switch(condition) {
case VERSION_LESS_THAN:
majorCondition = VER_LESS;
minorCondition = VER_LESS;
spMajorCondition = VER_LESS_EQUAL;
spMinorCondition = VER_LESS_EQUAL;
break;
case VERSION_LESS_THAN_EQUAL:
majorCondition = VER_LESS_EQUAL;
minorCondition = VER_LESS_EQUAL;
spMajorCondition = VER_LESS_EQUAL;
spMinorCondition = VER_LESS_EQUAL;
break;
case VERSION_EQUAL:
majorCondition = VER_EQUAL;
minorCondition = VER_EQUAL;
spMajorCondition = VER_GREATER_EQUAL;
spMinorCondition = VER_GREATER_EQUAL;
break;
case VERSION_GREATER_THAN_EQUAL:
majorCondition = VER_GREATER_EQUAL;
minorCondition = VER_GREATER_EQUAL;
spMajorCondition = VER_GREATER_EQUAL;
spMinorCondition = VER_GREATER_EQUAL;
break;
case VERSION_GREATER_THAN:
majorCondition = VER_GREATER;
minorCondition = VER_GREATER;
spMajorCondition = VER_GREATER_EQUAL;
spMinorCondition = VER_GREATER_EQUAL;
break;
default:
return FALSE;
}
memset(&osver, 0, sizeof(osver));
osver.dwOSVersionInfoSize = sizeof(osver);
osver.dwMajorVersion = majorVersion;
osver.dwMinorVersion = minorVersion;
if(platform == PLATFORM_WINDOWS)
osver.dwPlatformId = VER_PLATFORM_WIN32_WINDOWS;
else if(platform == PLATFORM_WINNT)
osver.dwPlatformId = VER_PLATFORM_WIN32_NT;
cm = VerSetConditionMask(cm, VER_MAJORVERSION, majorCondition);
cm = VerSetConditionMask(cm, VER_MINORVERSION, minorCondition);
cm = VerSetConditionMask(cm, VER_SERVICEPACKMAJOR, spMajorCondition);
cm = VerSetConditionMask(cm, VER_SERVICEPACKMINOR, spMinorCondition);
if(platform != PLATFORM_DONT_CARE)
cm = VerSetConditionMask(cm, VER_PLATFORMID, VER_EQUAL);
/* Later versions of Windows have version functions that may not return the
real version of Windows unless the application is so manifested. We prefer
the real version always, so we use the Rtl variant of the function when
possible. Note though the function signatures have underlying fundamental
types that are the same, the return values are different. */
if(pRtlVerifyVersionInfo) {
matched = !pRtlVerifyVersionInfo(&osver,
(VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR),
cm);
}
else {
matched = !!VerifyVersionInfoW((OSVERSIONINFOEXW *)&osver,
(VER_MAJORVERSION | VER_MINORVERSION |
VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR),
cm);
}
#endif
return matched;
}
#endif /* WIN32 */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/dict.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_DICT
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#elif defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "escape.h"
#include "progress.h"
#include "dict.h"
#include "curl_printf.h"
#include "strcase.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Forward declarations.
*/
static CURLcode dict_do(struct Curl_easy *data, bool *done);
/*
* DICT protocol handler.
*/
const struct Curl_handler Curl_handler_dict = {
"DICT", /* scheme */
ZERO_NULL, /* setup_connection */
dict_do, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_DICT, /* defport */
CURLPROTO_DICT, /* protocol */
CURLPROTO_DICT, /* family */
PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */
};
static char *unescape_word(struct Curl_easy *data, const char *inputbuff)
{
char *newp = NULL;
char *dictp;
size_t len;
CURLcode result = Curl_urldecode(data, inputbuff, 0, &newp, &len,
REJECT_NADA);
if(!newp || result)
return NULL;
dictp = malloc(len*2 + 1); /* add one for terminating zero */
if(dictp) {
char *ptr;
char ch;
int olen = 0;
/* According to RFC2229 section 2.2, these letters need to be escaped with
\[letter] */
for(ptr = newp;
(ch = *ptr) != 0;
ptr++) {
if((ch <= 32) || (ch == 127) ||
(ch == '\'') || (ch == '\"') || (ch == '\\')) {
dictp[olen++] = '\\';
}
dictp[olen++] = ch;
}
dictp[olen] = 0;
}
free(newp);
return dictp;
}
/* sendf() sends formatted data to the server */
static CURLcode sendf(curl_socket_t sockfd, struct Curl_easy *data,
const char *fmt, ...)
{
ssize_t bytes_written;
size_t write_len;
CURLcode result = CURLE_OK;
char *s;
char *sptr;
va_list ap;
va_start(ap, fmt);
s = vaprintf(fmt, ap); /* returns an allocated string */
va_end(ap);
if(!s)
return CURLE_OUT_OF_MEMORY; /* failure */
bytes_written = 0;
write_len = strlen(s);
sptr = s;
for(;;) {
/* Write the buffer to the socket */
result = Curl_write(data, sockfd, sptr, write_len, &bytes_written);
if(result)
break;
Curl_debug(data, CURLINFO_DATA_OUT, sptr, (size_t)bytes_written);
if((size_t)bytes_written != write_len) {
/* if not all was written at once, we must advance the pointer, decrease
the size left and try again! */
write_len -= bytes_written;
sptr += bytes_written;
}
else
break;
}
free(s); /* free the output string */
return result;
}
static CURLcode dict_do(struct Curl_easy *data, bool *done)
{
char *word;
char *eword;
char *ppath;
char *database = NULL;
char *strategy = NULL;
char *nthdef = NULL; /* This is not part of the protocol, but required
by RFC 2229 */
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
char *path = data->state.up.path;
*done = TRUE; /* unconditionally */
if(conn->bits.user_passwd) {
/* AUTH is missing */
}
if(strncasecompare(path, DICT_MATCH, sizeof(DICT_MATCH)-1) ||
strncasecompare(path, DICT_MATCH2, sizeof(DICT_MATCH2)-1) ||
strncasecompare(path, DICT_MATCH3, sizeof(DICT_MATCH3)-1)) {
word = strchr(path, ':');
if(word) {
word++;
database = strchr(word, ':');
if(database) {
*database++ = (char)0;
strategy = strchr(database, ':');
if(strategy) {
*strategy++ = (char)0;
nthdef = strchr(strategy, ':');
if(nthdef) {
*nthdef = (char)0;
}
}
}
}
if(!word || (*word == (char)0)) {
infof(data, "lookup word is missing");
word = (char *)"default";
}
if(!database || (*database == (char)0)) {
database = (char *)"!";
}
if(!strategy || (*strategy == (char)0)) {
strategy = (char *)".";
}
eword = unescape_word(data, word);
if(!eword)
return CURLE_OUT_OF_MEMORY;
result = sendf(sockfd, data,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"MATCH "
"%s " /* database */
"%s " /* strategy */
"%s\r\n" /* word */
"QUIT\r\n",
database,
strategy,
eword);
free(eword);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1); /* no upload */
}
else if(strncasecompare(path, DICT_DEFINE, sizeof(DICT_DEFINE)-1) ||
strncasecompare(path, DICT_DEFINE2, sizeof(DICT_DEFINE2)-1) ||
strncasecompare(path, DICT_DEFINE3, sizeof(DICT_DEFINE3)-1)) {
word = strchr(path, ':');
if(word) {
word++;
database = strchr(word, ':');
if(database) {
*database++ = (char)0;
nthdef = strchr(database, ':');
if(nthdef) {
*nthdef = (char)0;
}
}
}
if(!word || (*word == (char)0)) {
infof(data, "lookup word is missing");
word = (char *)"default";
}
if(!database || (*database == (char)0)) {
database = (char *)"!";
}
eword = unescape_word(data, word);
if(!eword)
return CURLE_OUT_OF_MEMORY;
result = sendf(sockfd, data,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"DEFINE "
"%s " /* database */
"%s\r\n" /* word */
"QUIT\r\n",
database,
eword);
free(eword);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
}
else {
ppath = strchr(path, '/');
if(ppath) {
int i;
ppath++;
for(i = 0; ppath[i]; i++) {
if(ppath[i] == ':')
ppath[i] = ' ';
}
result = sendf(sockfd, data,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"%s\r\n"
"QUIT\r\n", ppath);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
}
}
return CURLE_OK;
}
#endif /*CURL_DISABLE_DICT*/
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/md4.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_CRYPTO_AUTH)
#include "curl_md4.h"
#include "warnless.h"
#ifdef USE_OPENSSL
#include <openssl/opensslconf.h>
#if defined(OPENSSL_VERSION_MAJOR) && (OPENSSL_VERSION_MAJOR >= 3)
/* OpenSSL 3.0.0 marks the MD4 functions as deprecated */
#define OPENSSL_NO_MD4
#endif
#endif /* USE_OPENSSL */
#ifdef USE_WOLFSSL
#include <wolfssl/options.h>
#ifdef NO_MD4
#define OPENSSL_NO_MD4
#endif
#endif
#ifdef USE_MBEDTLS
#include <mbedtls/version.h>
#if MBEDTLS_VERSION_NUMBER >= 0x03000000
#include <mbedtls/mbedtls_config.h>
#else
#include <mbedtls/config.h>
#endif
#if(MBEDTLS_VERSION_NUMBER >= 0x02070000)
#define HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS
#endif
#endif /* USE_MBEDTLS */
#if defined(USE_GNUTLS)
#include <nettle/md4.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
typedef struct md4_ctx MD4_CTX;
static void MD4_Init(MD4_CTX *ctx)
{
md4_init(ctx);
}
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
{
md4_update(ctx, size, data);
}
static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
{
md4_digest(ctx, MD4_DIGEST_SIZE, result);
}
#elif (defined(USE_OPENSSL) || defined(USE_WOLFSSL)) && \
!defined(OPENSSL_NO_MD4)
/* When OpenSSL or wolfSSL is available, we use their MD4 functions. */
#include <openssl/md4.h>
#elif (defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && \
(__MAC_OS_X_VERSION_MAX_ALLOWED >= 1040) && \
defined(__MAC_OS_X_VERSION_MIN_ALLOWED) && \
(__MAC_OS_X_VERSION_MIN_ALLOWED < 101500)) || \
(defined(__IPHONE_OS_VERSION_MAX_ALLOWED) && \
(__IPHONE_OS_VERSION_MAX_ALLOWED >= 20000))
#include <CommonCrypto/CommonDigest.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
typedef CC_MD4_CTX MD4_CTX;
static void MD4_Init(MD4_CTX *ctx)
{
(void)CC_MD4_Init(ctx);
}
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
{
(void)CC_MD4_Update(ctx, data, (CC_LONG)size);
}
static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
{
(void)CC_MD4_Final(result, ctx);
}
#elif defined(USE_WIN32_CRYPTO)
#include <wincrypt.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
struct md4_ctx {
HCRYPTPROV hCryptProv;
HCRYPTHASH hHash;
};
typedef struct md4_ctx MD4_CTX;
static void MD4_Init(MD4_CTX *ctx)
{
ctx->hCryptProv = 0;
ctx->hHash = 0;
if(CryptAcquireContext(&ctx->hCryptProv, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
CryptCreateHash(ctx->hCryptProv, CALG_MD4, 0, 0, &ctx->hHash);
}
}
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
{
CryptHashData(ctx->hHash, (BYTE *)data, (unsigned int) size, 0);
}
static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
{
unsigned long length = 0;
CryptGetHashParam(ctx->hHash, HP_HASHVAL, NULL, &length, 0);
if(length == MD4_DIGEST_LENGTH)
CryptGetHashParam(ctx->hHash, HP_HASHVAL, result, &length, 0);
if(ctx->hHash)
CryptDestroyHash(ctx->hHash);
if(ctx->hCryptProv)
CryptReleaseContext(ctx->hCryptProv, 0);
}
#elif(defined(USE_MBEDTLS) && defined(MBEDTLS_MD4_C))
#include <mbedtls/md4.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
struct md4_ctx {
void *data;
unsigned long size;
};
typedef struct md4_ctx MD4_CTX;
static void MD4_Init(MD4_CTX *ctx)
{
ctx->data = NULL;
ctx->size = 0;
}
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
{
if(!ctx->data) {
ctx->data = malloc(size);
if(ctx->data != NULL) {
memcpy(ctx->data, data, size);
ctx->size = size;
}
}
}
static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
{
if(ctx->data != NULL) {
#if !defined(HAS_MBEDTLS_RESULT_CODE_BASED_FUNCTIONS)
mbedtls_md4(ctx->data, ctx->size, result);
#else
(void) mbedtls_md4_ret(ctx->data, ctx->size, result);
#endif
Curl_safefree(ctx->data);
ctx->size = 0;
}
}
#else
/* When no other crypto library is available, or the crypto library doesn't
* support MD4, we use this code segment this implementation of it
*
* This is an OpenSSL-compatible implementation of the RSA Data Security, Inc.
* MD4 Message-Digest Algorithm (RFC 1320).
*
* Homepage:
https://openwall.info/wiki/people/solar/software/public-domain-source-code/md4
*
* Author:
* Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
*
* This software was written by Alexander Peslyak in 2001. No copyright is
* claimed, and the software is hereby placed in the public domain. In case
* this attempt to disclaim copyright and place the software in the public
* domain is deemed null and void, then the software is Copyright (c) 2001
* Alexander Peslyak and it is hereby released to the general public under the
* following terms:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted.
*
* There's ABSOLUTELY NO WARRANTY, express or implied.
*
* (This is a heavily cut-down "BSD license".)
*
* This differs from Colin Plumb's older public domain implementation in that
* no exactly 32-bit integer data type is required (any 32-bit or wider
* unsigned integer data type will do), there's no compile-time endianness
* configuration, and the function prototypes match OpenSSL's. No code from
* Colin Plumb's implementation has been reused; this comment merely compares
* the properties of the two independent implementations.
*
* The primary goals of this implementation are portability and ease of use.
* It is meant to be fast, but not as fast as possible. Some known
* optimizations are not included to reduce source code size and avoid
* compile-time configuration.
*/
#include <string.h>
/* Any 32-bit or wider unsigned integer data type will do */
typedef unsigned int MD4_u32plus;
struct md4_ctx {
MD4_u32plus lo, hi;
MD4_u32plus a, b, c, d;
unsigned char buffer[64];
MD4_u32plus block[16];
};
typedef struct md4_ctx MD4_CTX;
static void MD4_Init(MD4_CTX *ctx);
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size);
static void MD4_Final(unsigned char *result, MD4_CTX *ctx);
/*
* The basic MD4 functions.
*
* F and G are optimized compared to their RFC 1320 definitions, with the
* optimization for F borrowed from Colin Plumb's MD5 implementation.
*/
#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
#define G(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
/*
* The MD4 transformation for all three rounds.
*/
#define STEP(f, a, b, c, d, x, s) \
(a) += f((b), (c), (d)) + (x); \
(a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s))));
/*
* SET reads 4 input bytes in little-endian byte order and stores them
* in a properly aligned word in host byte order.
*
* The check for little-endian architectures that tolerate unaligned
* memory accesses is just an optimization. Nothing will break if it
* doesn't work.
*/
#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
#define SET(n) \
(*(MD4_u32plus *)(void *)&ptr[(n) * 4])
#define GET(n) \
SET(n)
#else
#define SET(n) \
(ctx->block[(n)] = \
(MD4_u32plus)ptr[(n) * 4] | \
((MD4_u32plus)ptr[(n) * 4 + 1] << 8) | \
((MD4_u32plus)ptr[(n) * 4 + 2] << 16) | \
((MD4_u32plus)ptr[(n) * 4 + 3] << 24))
#define GET(n) \
(ctx->block[(n)])
#endif
/*
* This processes one or more 64-byte data blocks, but does NOT update
* the bit counters. There are no alignment requirements.
*/
static const void *body(MD4_CTX *ctx, const void *data, unsigned long size)
{
const unsigned char *ptr;
MD4_u32plus a, b, c, d;
ptr = (const unsigned char *)data;
a = ctx->a;
b = ctx->b;
c = ctx->c;
d = ctx->d;
do {
MD4_u32plus saved_a, saved_b, saved_c, saved_d;
saved_a = a;
saved_b = b;
saved_c = c;
saved_d = d;
/* Round 1 */
STEP(F, a, b, c, d, SET(0), 3)
STEP(F, d, a, b, c, SET(1), 7)
STEP(F, c, d, a, b, SET(2), 11)
STEP(F, b, c, d, a, SET(3), 19)
STEP(F, a, b, c, d, SET(4), 3)
STEP(F, d, a, b, c, SET(5), 7)
STEP(F, c, d, a, b, SET(6), 11)
STEP(F, b, c, d, a, SET(7), 19)
STEP(F, a, b, c, d, SET(8), 3)
STEP(F, d, a, b, c, SET(9), 7)
STEP(F, c, d, a, b, SET(10), 11)
STEP(F, b, c, d, a, SET(11), 19)
STEP(F, a, b, c, d, SET(12), 3)
STEP(F, d, a, b, c, SET(13), 7)
STEP(F, c, d, a, b, SET(14), 11)
STEP(F, b, c, d, a, SET(15), 19)
/* Round 2 */
STEP(G, a, b, c, d, GET(0) + 0x5a827999, 3)
STEP(G, d, a, b, c, GET(4) + 0x5a827999, 5)
STEP(G, c, d, a, b, GET(8) + 0x5a827999, 9)
STEP(G, b, c, d, a, GET(12) + 0x5a827999, 13)
STEP(G, a, b, c, d, GET(1) + 0x5a827999, 3)
STEP(G, d, a, b, c, GET(5) + 0x5a827999, 5)
STEP(G, c, d, a, b, GET(9) + 0x5a827999, 9)
STEP(G, b, c, d, a, GET(13) + 0x5a827999, 13)
STEP(G, a, b, c, d, GET(2) + 0x5a827999, 3)
STEP(G, d, a, b, c, GET(6) + 0x5a827999, 5)
STEP(G, c, d, a, b, GET(10) + 0x5a827999, 9)
STEP(G, b, c, d, a, GET(14) + 0x5a827999, 13)
STEP(G, a, b, c, d, GET(3) + 0x5a827999, 3)
STEP(G, d, a, b, c, GET(7) + 0x5a827999, 5)
STEP(G, c, d, a, b, GET(11) + 0x5a827999, 9)
STEP(G, b, c, d, a, GET(15) + 0x5a827999, 13)
/* Round 3 */
STEP(H, a, b, c, d, GET(0) + 0x6ed9eba1, 3)
STEP(H, d, a, b, c, GET(8) + 0x6ed9eba1, 9)
STEP(H, c, d, a, b, GET(4) + 0x6ed9eba1, 11)
STEP(H, b, c, d, a, GET(12) + 0x6ed9eba1, 15)
STEP(H, a, b, c, d, GET(2) + 0x6ed9eba1, 3)
STEP(H, d, a, b, c, GET(10) + 0x6ed9eba1, 9)
STEP(H, c, d, a, b, GET(6) + 0x6ed9eba1, 11)
STEP(H, b, c, d, a, GET(14) + 0x6ed9eba1, 15)
STEP(H, a, b, c, d, GET(1) + 0x6ed9eba1, 3)
STEP(H, d, a, b, c, GET(9) + 0x6ed9eba1, 9)
STEP(H, c, d, a, b, GET(5) + 0x6ed9eba1, 11)
STEP(H, b, c, d, a, GET(13) + 0x6ed9eba1, 15)
STEP(H, a, b, c, d, GET(3) + 0x6ed9eba1, 3)
STEP(H, d, a, b, c, GET(11) + 0x6ed9eba1, 9)
STEP(H, c, d, a, b, GET(7) + 0x6ed9eba1, 11)
STEP(H, b, c, d, a, GET(15) + 0x6ed9eba1, 15)
a += saved_a;
b += saved_b;
c += saved_c;
d += saved_d;
ptr += 64;
} while(size -= 64);
ctx->a = a;
ctx->b = b;
ctx->c = c;
ctx->d = d;
return ptr;
}
static void MD4_Init(MD4_CTX *ctx)
{
ctx->a = 0x67452301;
ctx->b = 0xefcdab89;
ctx->c = 0x98badcfe;
ctx->d = 0x10325476;
ctx->lo = 0;
ctx->hi = 0;
}
static void MD4_Update(MD4_CTX *ctx, const void *data, unsigned long size)
{
MD4_u32plus saved_lo;
unsigned long used;
saved_lo = ctx->lo;
ctx->lo = (saved_lo + size) & 0x1fffffff;
if(ctx->lo < saved_lo)
ctx->hi++;
ctx->hi += (MD4_u32plus)size >> 29;
used = saved_lo & 0x3f;
if(used) {
unsigned long available = 64 - used;
if(size < available) {
memcpy(&ctx->buffer[used], data, size);
return;
}
memcpy(&ctx->buffer[used], data, available);
data = (const unsigned char *)data + available;
size -= available;
body(ctx, ctx->buffer, 64);
}
if(size >= 64) {
data = body(ctx, data, size & ~(unsigned long)0x3f);
size &= 0x3f;
}
memcpy(ctx->buffer, data, size);
}
static void MD4_Final(unsigned char *result, MD4_CTX *ctx)
{
unsigned long used, available;
used = ctx->lo & 0x3f;
ctx->buffer[used++] = 0x80;
available = 64 - used;
if(available < 8) {
memset(&ctx->buffer[used], 0, available);
body(ctx, ctx->buffer, 64);
used = 0;
available = 64;
}
memset(&ctx->buffer[used], 0, available - 8);
ctx->lo <<= 3;
ctx->buffer[56] = curlx_ultouc((ctx->lo)&0xff);
ctx->buffer[57] = curlx_ultouc((ctx->lo >> 8)&0xff);
ctx->buffer[58] = curlx_ultouc((ctx->lo >> 16)&0xff);
ctx->buffer[59] = curlx_ultouc((ctx->lo >> 24)&0xff);
ctx->buffer[60] = curlx_ultouc((ctx->hi)&0xff);
ctx->buffer[61] = curlx_ultouc((ctx->hi >> 8)&0xff);
ctx->buffer[62] = curlx_ultouc((ctx->hi >> 16)&0xff);
ctx->buffer[63] = curlx_ultouc(ctx->hi >> 24);
body(ctx, ctx->buffer, 64);
result[0] = curlx_ultouc((ctx->a)&0xff);
result[1] = curlx_ultouc((ctx->a >> 8)&0xff);
result[2] = curlx_ultouc((ctx->a >> 16)&0xff);
result[3] = curlx_ultouc(ctx->a >> 24);
result[4] = curlx_ultouc((ctx->b)&0xff);
result[5] = curlx_ultouc((ctx->b >> 8)&0xff);
result[6] = curlx_ultouc((ctx->b >> 16)&0xff);
result[7] = curlx_ultouc(ctx->b >> 24);
result[8] = curlx_ultouc((ctx->c)&0xff);
result[9] = curlx_ultouc((ctx->c >> 8)&0xff);
result[10] = curlx_ultouc((ctx->c >> 16)&0xff);
result[11] = curlx_ultouc(ctx->c >> 24);
result[12] = curlx_ultouc((ctx->d)&0xff);
result[13] = curlx_ultouc((ctx->d >> 8)&0xff);
result[14] = curlx_ultouc((ctx->d >> 16)&0xff);
result[15] = curlx_ultouc(ctx->d >> 24);
memset(ctx, 0, sizeof(*ctx));
}
#endif /* CRYPTO LIBS */
void Curl_md4it(unsigned char *output, const unsigned char *input,
const size_t len)
{
MD4_CTX ctx;
MD4_Init(&ctx);
MD4_Update(&ctx, input, curlx_uztoui(len));
MD4_Final(output, &ctx);
}
#endif /* CURL_DISABLE_CRYPTO_AUTH */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_rtmp.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2021, Daniel Stenberg, <[email protected]>, et al.
* Copyright (C) 2010, Howard Chu, <[email protected]>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_LIBRTMP
#include "curl_rtmp.h"
#include "urldata.h"
#include "nonblock.h" /* for curlx_nonblock */
#include "progress.h" /* for Curl_pgrsSetUploadSize */
#include "transfer.h"
#include "warnless.h"
#include <curl/curl.h>
#include <librtmp/rtmp.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#if defined(WIN32) && !defined(USE_LWIPSOCK)
#define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
#define SET_RCVTIMEO(tv,s) int tv = s*1000
#elif defined(LWIP_SO_SNDRCVTIMEO_NONSTANDARD)
#define SET_RCVTIMEO(tv,s) int tv = s*1000
#else
#define SET_RCVTIMEO(tv,s) struct timeval tv = {s,0}
#endif
#define DEF_BUFTIME (2*60*60*1000) /* 2 hours */
static CURLcode rtmp_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode rtmp_do(struct Curl_easy *data, bool *done);
static CURLcode rtmp_done(struct Curl_easy *data, CURLcode, bool premature);
static CURLcode rtmp_connect(struct Curl_easy *data, bool *done);
static CURLcode rtmp_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead);
static Curl_recv rtmp_recv;
static Curl_send rtmp_send;
/*
* RTMP protocol handler.h, based on https://rtmpdump.mplayerhq.hu
*/
const struct Curl_handler Curl_handler_rtmp = {
"RTMP", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMP, /* defport */
CURLPROTO_RTMP, /* protocol */
CURLPROTO_RTMP, /* family */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpt = {
"RTMPT", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMPT, /* defport */
CURLPROTO_RTMPT, /* protocol */
CURLPROTO_RTMPT, /* family */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpe = {
"RTMPE", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMP, /* defport */
CURLPROTO_RTMPE, /* protocol */
CURLPROTO_RTMPE, /* family */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpte = {
"RTMPTE", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMPT, /* defport */
CURLPROTO_RTMPTE, /* protocol */
CURLPROTO_RTMPTE, /* family */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmps = {
"RTMPS", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMPS, /* defport */
CURLPROTO_RTMPS, /* protocol */
CURLPROTO_RTMP, /* family */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpts = {
"RTMPTS", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_RTMPS, /* defport */
CURLPROTO_RTMPTS, /* protocol */
CURLPROTO_RTMPT, /* family */
PROTOPT_NONE /* flags*/
};
static CURLcode rtmp_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
RTMP *r = RTMP_Alloc();
if(!r)
return CURLE_OUT_OF_MEMORY;
RTMP_Init(r);
RTMP_SetBufferMS(r, DEF_BUFTIME);
if(!RTMP_SetupURL(r, data->state.url)) {
RTMP_Free(r);
return CURLE_URL_MALFORMAT;
}
conn->proto.rtmp = r;
return CURLE_OK;
}
static CURLcode rtmp_connect(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
RTMP *r = conn->proto.rtmp;
SET_RCVTIMEO(tv, 10);
r->m_sb.sb_socket = (int)conn->sock[FIRSTSOCKET];
/* We have to know if it's a write before we send the
* connect request packet
*/
if(data->set.upload)
r->Link.protocol |= RTMP_FEATURE_WRITE;
/* For plain streams, use the buffer toggle trick to keep data flowing */
if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
!(r->Link.protocol & RTMP_FEATURE_HTTP))
r->Link.lFlags |= RTMP_LF_BUFX;
(void)curlx_nonblock(r->m_sb.sb_socket, FALSE);
setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
(char *)&tv, sizeof(tv));
if(!RTMP_Connect1(r, NULL))
return CURLE_FAILED_INIT;
/* Clients must send a periodic BytesReceived report to the server */
r->m_bSendCounter = true;
*done = TRUE;
conn->recv[FIRSTSOCKET] = rtmp_recv;
conn->send[FIRSTSOCKET] = rtmp_send;
return CURLE_OK;
}
static CURLcode rtmp_do(struct Curl_easy *data, bool *done)
{
struct connectdata *conn = data->conn;
RTMP *r = conn->proto.rtmp;
if(!RTMP_ConnectStream(r, 0))
return CURLE_FAILED_INIT;
if(data->set.upload) {
Curl_pgrsSetUploadSize(data, data->state.infilesize);
Curl_setup_transfer(data, -1, -1, FALSE, FIRSTSOCKET);
}
else
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
*done = TRUE;
return CURLE_OK;
}
static CURLcode rtmp_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
(void)data; /* unused */
(void)status; /* unused */
(void)premature; /* unused */
return CURLE_OK;
}
static CURLcode rtmp_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection)
{
RTMP *r = conn->proto.rtmp;
(void)data;
(void)dead_connection;
if(r) {
conn->proto.rtmp = NULL;
RTMP_Close(r);
RTMP_Free(r);
}
return CURLE_OK;
}
static ssize_t rtmp_recv(struct Curl_easy *data, int sockindex, char *buf,
size_t len, CURLcode *err)
{
struct connectdata *conn = data->conn;
RTMP *r = conn->proto.rtmp;
ssize_t nread;
(void)sockindex; /* unused */
nread = RTMP_Read(r, buf, curlx_uztosi(len));
if(nread < 0) {
if(r->m_read.status == RTMP_READ_COMPLETE ||
r->m_read.status == RTMP_READ_EOF) {
data->req.size = data->req.bytecount;
nread = 0;
}
else
*err = CURLE_RECV_ERROR;
}
return nread;
}
static ssize_t rtmp_send(struct Curl_easy *data, int sockindex,
const void *buf, size_t len, CURLcode *err)
{
struct connectdata *conn = data->conn;
RTMP *r = conn->proto.rtmp;
ssize_t num;
(void)sockindex; /* unused */
num = RTMP_Write(r, (char *)buf, curlx_uztosi(len));
if(num < 0)
*err = CURLE_SEND_ERROR;
return num;
}
#endif /* USE_LIBRTMP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/multiif.h | #ifndef HEADER_CURL_MULTIIF_H
#define HEADER_CURL_MULTIIF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Prototypes for library-wide functions provided by multi.c
*/
void Curl_updatesocket(struct Curl_easy *data);
void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id);
void Curl_expire_clear(struct Curl_easy *data);
void Curl_expire_done(struct Curl_easy *data, expire_id id);
void Curl_update_timer(struct Curl_multi *multi);
void Curl_attach_connnection(struct Curl_easy *data,
struct connectdata *conn);
void Curl_detach_connnection(struct Curl_easy *data);
bool Curl_multiplex_wanted(const struct Curl_multi *multi);
void Curl_set_in_callback(struct Curl_easy *data, bool value);
bool Curl_is_in_callback(struct Curl_easy *easy);
CURLcode Curl_preconnect(struct Curl_easy *data);
/* Internal version of curl_multi_init() accepts size parameters for the
socket and connection hashes */
struct Curl_multi *Curl_multi_handle(int hashsize, int chashsize);
/* the write bits start at bit 16 for the *getsock() bitmap */
#define GETSOCK_WRITEBITSTART 16
#define GETSOCK_BLANK 0 /* no bits set */
/* set the bit for the given sock number to make the bitmap for writable */
#define GETSOCK_WRITESOCK(x) (1 << (GETSOCK_WRITEBITSTART + (x)))
/* set the bit for the given sock number to make the bitmap for readable */
#define GETSOCK_READSOCK(x) (1 << (x))
#ifdef DEBUGBUILD
/*
* Curl_multi_dump is not a stable public function, this is only meant to
* allow easier tracking of the internal handle's state and what sockets
* they use. Only for research and development DEBUGBUILD enabled builds.
*/
void Curl_multi_dump(struct Curl_multi *multi);
#endif
/* Return the value of the CURLMOPT_MAX_HOST_CONNECTIONS option */
size_t Curl_multi_max_host_connections(struct Curl_multi *multi);
/* Return the value of the CURLMOPT_MAX_TOTAL_CONNECTIONS option */
size_t Curl_multi_max_total_connections(struct Curl_multi *multi);
void Curl_multiuse_state(struct Curl_easy *data,
int bundlestate); /* use BUNDLE_* defines */
/*
* Curl_multi_closed()
*
* Used by the connect code to tell the multi_socket code that one of the
* sockets we were using is about to be closed. This function will then
* remove it from the sockethash for this handle to make the multi_socket API
* behave properly, especially for the case when libcurl will create another
* socket again and it gets the same file descriptor number.
*/
void Curl_multi_closed(struct Curl_easy *data, curl_socket_t s);
/*
* Add a handle and move it into PERFORM state at once. For pushed streams.
*/
CURLMcode Curl_multi_add_perform(struct Curl_multi *multi,
struct Curl_easy *data,
struct connectdata *conn);
/* Return the value of the CURLMOPT_MAX_CONCURRENT_STREAMS option */
unsigned int Curl_multi_max_concurrent_streams(struct Curl_multi *multi);
#endif /* HEADER_CURL_MULTIIF_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http_digest.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_CRYPTO_AUTH)
#include "urldata.h"
#include "strcase.h"
#include "vauth/vauth.h"
#include "http_digest.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Test example headers:
WWW-Authenticate: Digest realm="testrealm", nonce="1053604598"
Proxy-Authenticate: Digest realm="testrealm", nonce="1053604598"
*/
CURLcode Curl_input_digest(struct Curl_easy *data,
bool proxy,
const char *header) /* rest of the *-authenticate:
header */
{
/* Point to the correct struct with this */
struct digestdata *digest;
if(proxy) {
digest = &data->state.proxydigest;
}
else {
digest = &data->state.digest;
}
if(!checkprefix("Digest", header) || !ISSPACE(header[6]))
return CURLE_BAD_CONTENT_ENCODING;
header += strlen("Digest");
while(*header && ISSPACE(*header))
header++;
return Curl_auth_decode_digest_http_message(header, digest);
}
CURLcode Curl_output_digest(struct Curl_easy *data,
bool proxy,
const unsigned char *request,
const unsigned char *uripath)
{
CURLcode result;
unsigned char *path = NULL;
char *tmp = NULL;
char *response;
size_t len;
bool have_chlg;
/* Point to the address of the pointer that holds the string to send to the
server, which is for a plain host or for a HTTP proxy */
char **allocuserpwd;
/* Point to the name and password for this */
const char *userp;
const char *passwdp;
/* Point to the correct struct with this */
struct digestdata *digest;
struct auth *authp;
if(proxy) {
#ifdef CURL_DISABLE_PROXY
return CURLE_NOT_BUILT_IN;
#else
digest = &data->state.proxydigest;
allocuserpwd = &data->state.aptr.proxyuserpwd;
userp = data->state.aptr.proxyuser;
passwdp = data->state.aptr.proxypasswd;
authp = &data->state.authproxy;
#endif
}
else {
digest = &data->state.digest;
allocuserpwd = &data->state.aptr.userpwd;
userp = data->state.aptr.user;
passwdp = data->state.aptr.passwd;
authp = &data->state.authhost;
}
Curl_safefree(*allocuserpwd);
/* not set means empty */
if(!userp)
userp = "";
if(!passwdp)
passwdp = "";
#if defined(USE_WINDOWS_SSPI)
have_chlg = digest->input_token ? TRUE : FALSE;
#else
have_chlg = digest->nonce ? TRUE : FALSE;
#endif
if(!have_chlg) {
authp->done = FALSE;
return CURLE_OK;
}
/* So IE browsers < v7 cut off the URI part at the query part when they
evaluate the MD5 and some (IIS?) servers work with them so we may need to
do the Digest IE-style. Note that the different ways cause different MD5
sums to get sent.
Apache servers can be set to do the Digest IE-style automatically using
the BrowserMatch feature:
https://httpd.apache.org/docs/2.2/mod/mod_auth_digest.html#msie
Further details on Digest implementation differences:
http://www.fngtps.com/2006/09/http-authentication
*/
if(authp->iestyle) {
tmp = strchr((char *)uripath, '?');
if(tmp) {
size_t urilen = tmp - (char *)uripath;
/* typecast is fine here since the value is always less than 32 bits */
path = (unsigned char *) aprintf("%.*s", (int)urilen, uripath);
}
}
if(!tmp)
path = (unsigned char *) strdup((char *) uripath);
if(!path)
return CURLE_OUT_OF_MEMORY;
result = Curl_auth_create_digest_http_message(data, userp, passwdp, request,
path, digest, &response, &len);
free(path);
if(result)
return result;
*allocuserpwd = aprintf("%sAuthorization: Digest %s\r\n",
proxy ? "Proxy-" : "",
response);
free(response);
if(!*allocuserpwd)
return CURLE_OUT_OF_MEMORY;
authp->done = TRUE;
return CURLE_OK;
}
void Curl_http_auth_cleanup_digest(struct Curl_easy *data)
{
Curl_auth_digest_cleanup(&data->state.digest);
Curl_auth_digest_cleanup(&data->state.proxydigest);
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_memrchr.h | #ifndef HEADER_CURL_MEMRCHR_H
#define HEADER_CURL_MEMRCHR_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_MEMRCHR
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#else /* HAVE_MEMRCHR */
void *Curl_memrchr(const void *s, int c, size_t n);
#define memrchr(x,y,z) Curl_memrchr((x),(y),(z))
#endif /* HAVE_MEMRCHR */
#endif /* HEADER_CURL_MEMRCHR_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostip6.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/***********************************************************************
* Only for IPv6-enabled builds
**********************************************************************/
#ifdef CURLRES_IPV6
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "share.h"
#include "url.h"
#include "inet_pton.h"
#include "connect.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/*
* Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've
* been set and returns TRUE if they are OK.
*/
bool Curl_ipvalid(struct Curl_easy *data, struct connectdata *conn)
{
if(conn->ip_version == CURL_IPRESOLVE_V6)
return Curl_ipv6works(data);
return TRUE;
}
#if defined(CURLRES_SYNCH)
#ifdef DEBUG_ADDRINFO
static void dump_addrinfo(struct connectdata *conn,
const struct Curl_addrinfo *ai)
{
printf("dump_addrinfo:\n");
for(; ai; ai = ai->ai_next) {
char buf[INET6_ADDRSTRLEN];
printf(" fam %2d, CNAME %s, ",
ai->ai_family, ai->ai_canonname ? ai->ai_canonname : "<none>");
Curl_printable_address(ai, buf, sizeof(buf));
printf("%s\n", buf);
}
}
#else
#define dump_addrinfo(x,y) Curl_nop_stmt
#endif
/*
* Curl_getaddrinfo() when built IPv6-enabled (non-threading and
* non-ares version).
*
* Returns name information about the given hostname and port number. If
* successful, the 'addrinfo' is returned and the forth argument will point to
* memory we need to free after use. That memory *MUST* be freed with
* Curl_freeaddrinfo(), nothing else.
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
struct addrinfo hints;
struct Curl_addrinfo *res;
int error;
char sbuf[12];
char *sbufptr = NULL;
#ifndef USE_RESOLVE_ON_IPS
char addrbuf[128];
#endif
int pf = PF_INET;
*waitp = 0; /* synchronous response only */
if(Curl_ipv6works(data))
/* The stack seems to be IPv6-enabled */
pf = PF_UNSPEC;
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = (data->conn->transport == TRNSPRT_TCP) ?
SOCK_STREAM : SOCK_DGRAM;
#ifndef USE_RESOLVE_ON_IPS
/*
* The AI_NUMERICHOST must not be set to get synthesized IPv6 address from
* an IPv4 address on iOS and Mac OS X.
*/
if((1 == Curl_inet_pton(AF_INET, hostname, addrbuf)) ||
(1 == Curl_inet_pton(AF_INET6, hostname, addrbuf))) {
/* the given address is numerical only, prevent a reverse lookup */
hints.ai_flags = AI_NUMERICHOST;
}
#endif
if(port) {
msnprintf(sbuf, sizeof(sbuf), "%d", port);
sbufptr = sbuf;
}
error = Curl_getaddrinfo_ex(hostname, sbufptr, &hints, &res);
if(error) {
infof(data, "getaddrinfo(3) failed for %s:%d", hostname, port);
return NULL;
}
if(port) {
Curl_addrinfo_set_port(res, port);
}
dump_addrinfo(conn, res);
return res;
}
#endif /* CURLRES_SYNCH */
#endif /* CURLRES_IPV6 */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/netrc.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_NETRC
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include <curl/curl.h>
#include "netrc.h"
#include "strtok.h"
#include "strcase.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Get user and password from .netrc when given a machine name */
enum host_lookup_state {
NOTHING,
HOSTFOUND, /* the 'machine' keyword was found */
HOSTVALID, /* this is "our" machine! */
MACDEF
};
#define NETRC_FILE_MISSING 1
#define NETRC_FAILED -1
#define NETRC_SUCCESS 0
/*
* Returns zero on success.
*/
static int parsenetrc(const char *host,
char **loginp,
char **passwordp,
bool *login_changed,
bool *password_changed,
char *netrcfile)
{
FILE *file;
int retcode = NETRC_FILE_MISSING;
char *login = *loginp;
char *password = *passwordp;
bool specific_login = (login && *login != 0);
bool login_alloc = FALSE;
bool password_alloc = FALSE;
enum host_lookup_state state = NOTHING;
char state_login = 0; /* Found a login keyword */
char state_password = 0; /* Found a password keyword */
int state_our_login = FALSE; /* With specific_login, found *our* login
name */
DEBUGASSERT(netrcfile);
file = fopen(netrcfile, FOPEN_READTEXT);
if(file) {
char *tok;
char *tok_buf;
bool done = FALSE;
char netrcbuffer[4096];
int netrcbuffsize = (int)sizeof(netrcbuffer);
while(!done && fgets(netrcbuffer, netrcbuffsize, file)) {
if(state == MACDEF) {
if((netrcbuffer[0] == '\n') || (netrcbuffer[0] == '\r'))
state = NOTHING;
else
continue;
}
tok = strtok_r(netrcbuffer, " \t\n", &tok_buf);
if(tok && *tok == '#')
/* treat an initial hash as a comment line */
continue;
while(tok) {
if((login && *login) && (password && *password)) {
done = TRUE;
break;
}
switch(state) {
case NOTHING:
if(strcasecompare("macdef", tok)) {
/* Define a macro. A macro is defined with the specified name; its
contents begin with the next .netrc line and continue until a
null line (consecutive new-line characters) is encountered. */
state = MACDEF;
}
else if(strcasecompare("machine", tok)) {
/* the next tok is the machine name, this is in itself the
delimiter that starts the stuff entered for this machine,
after this we need to search for 'login' and
'password'. */
state = HOSTFOUND;
}
else if(strcasecompare("default", tok)) {
state = HOSTVALID;
retcode = NETRC_SUCCESS; /* we did find our host */
}
break;
case MACDEF:
if(!strlen(tok)) {
state = NOTHING;
}
break;
case HOSTFOUND:
if(strcasecompare(host, tok)) {
/* and yes, this is our host! */
state = HOSTVALID;
retcode = NETRC_SUCCESS; /* we did find our host */
}
else
/* not our host */
state = NOTHING;
break;
case HOSTVALID:
/* we are now parsing sub-keywords concerning "our" host */
if(state_login) {
if(specific_login) {
state_our_login = strcasecompare(login, tok);
}
else if(!login || strcmp(login, tok)) {
if(login_alloc) {
free(login);
login_alloc = FALSE;
}
login = strdup(tok);
if(!login) {
retcode = NETRC_FAILED; /* allocation failed */
goto out;
}
login_alloc = TRUE;
}
state_login = 0;
}
else if(state_password) {
if((state_our_login || !specific_login)
&& (!password || strcmp(password, tok))) {
if(password_alloc) {
free(password);
password_alloc = FALSE;
}
password = strdup(tok);
if(!password) {
retcode = NETRC_FAILED; /* allocation failed */
goto out;
}
password_alloc = TRUE;
}
state_password = 0;
}
else if(strcasecompare("login", tok))
state_login = 1;
else if(strcasecompare("password", tok))
state_password = 1;
else if(strcasecompare("machine", tok)) {
/* ok, there's machine here go => */
state = HOSTFOUND;
state_our_login = FALSE;
}
break;
} /* switch (state) */
tok = strtok_r(NULL, " \t\n", &tok_buf);
} /* while(tok) */
} /* while fgets() */
out:
if(!retcode) {
/* success */
*login_changed = FALSE;
*password_changed = FALSE;
if(login_alloc) {
if(*loginp)
free(*loginp);
*loginp = login;
*login_changed = TRUE;
}
if(password_alloc) {
if(*passwordp)
free(*passwordp);
*passwordp = password;
*password_changed = TRUE;
}
}
else {
if(login_alloc)
free(login);
if(password_alloc)
free(password);
}
fclose(file);
}
return retcode;
}
/*
* @unittest: 1304
*
* *loginp and *passwordp MUST be allocated if they aren't NULL when passed
* in.
*/
int Curl_parsenetrc(const char *host,
char **loginp,
char **passwordp,
bool *login_changed,
bool *password_changed,
char *netrcfile)
{
int retcode = 1;
char *filealloc = NULL;
if(!netrcfile) {
char *home = NULL;
char *homea = curl_getenv("HOME"); /* portable environment reader */
if(homea) {
home = homea;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
}
else {
struct passwd pw, *pw_res;
char pwbuf[1024];
if(!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res)
&& pw_res) {
home = pw.pw_dir;
}
#elif defined(HAVE_GETPWUID) && defined(HAVE_GETEUID)
}
else {
struct passwd *pw;
pw = getpwuid(geteuid());
if(pw) {
home = pw->pw_dir;
}
#endif
}
if(!home)
return retcode; /* no home directory found (or possibly out of
memory) */
filealloc = curl_maprintf("%s%s.netrc", home, DIR_CHAR);
if(!filealloc) {
free(homea);
return -1;
}
retcode = parsenetrc(host, loginp, passwordp, login_changed,
password_changed, filealloc);
free(filealloc);
#ifdef WIN32
if(retcode == NETRC_FILE_MISSING) {
/* fallback to the old-style "_netrc" file */
filealloc = curl_maprintf("%s%s_netrc", home, DIR_CHAR);
if(!filealloc) {
free(homea);
return -1;
}
retcode = parsenetrc(host, loginp, passwordp, login_changed,
password_changed, filealloc);
free(filealloc);
}
#endif
free(homea);
}
else
retcode = parsenetrc(host, loginp, passwordp, login_changed,
password_changed, netrcfile);
return retcode;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/config-dos.h | #ifndef HEADER_CURL_CONFIG_DOS_H
#define HEADER_CURL_CONFIG_DOS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* ================================================================ */
/* lib/config-dos.h - Hand crafted config file for DOS */
/* ================================================================ */
#if defined(DJGPP)
#define OS "MSDOS/djgpp"
#elif defined(__HIGHC__)
#define OS "MSDOS/HighC"
#elif defined(__WATCOMC__)
#define OS "MSDOS/Watcom"
#else
#define OS "MSDOS/?"
#endif
#define PACKAGE "curl"
#define HAVE_ARPA_INET_H 1
#define HAVE_ASSERT_H 1
#define HAVE_ERRNO_H 1
#define HAVE_FCNTL_H 1
#define HAVE_FREEADDRINFO 1
#define HAVE_GETADDRINFO 1
#define HAVE_GETPROTOBYNAME 1
#define HAVE_GETTIMEOFDAY 1
#define HAVE_IO_H 1
#define HAVE_IOCTL 1
#define HAVE_IOCTL_FIONBIO 1
#define HAVE_IOCTLSOCKET 1
#define HAVE_IOCTLSOCKET_FIONBIO 1
#define HAVE_LOCALE_H 1
#define HAVE_LONGLONG 1
#define HAVE_MEMORY_H 1
#define HAVE_NETDB_H 1
#define HAVE_NETINET_IN_H 1
#define HAVE_NETINET_TCP_H 1
#define HAVE_NET_IF_H 1
#define HAVE_PROCESS_H 1
#define HAVE_RECV 1
#define HAVE_RECVFROM 1
#define HAVE_SELECT 1
#define HAVE_SEND 1
#define HAVE_SETJMP_H 1
#define HAVE_SETLOCALE 1
#define HAVE_SETMODE 1
#define HAVE_SIGNAL 1
#define HAVE_SOCKET 1
#define HAVE_STRDUP 1
#define HAVE_STRICMP 1
#define HAVE_STRTOLL 1
#define HAVE_STRUCT_TIMEVAL 1
#define HAVE_STRUCT_IN6_ADDR 1
#define HAVE_SYS_IOCTL_H 1
#define HAVE_SYS_SOCKET_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_TIME_H 1
#define HAVE_UNISTD_H 1
#define NEED_MALLOC_H 1
#define SIZEOF_INT 4
#define SIZEOF_LONG 4
#define SIZEOF_LONG_DOUBLE 16
#define SIZEOF_SHORT 2
#define SIZEOF_SIZE_T 4
#define SIZEOF_CURL_OFF_T 4
#define STDC_HEADERS 1
#define TIME_WITH_SYS_TIME 1
/* Qualifiers for send(), recv(), and recvfrom() */
#define SEND_TYPE_ARG1 int
#define SEND_QUAL_ARG2 const
#define SEND_TYPE_ARG2 void *
#define SEND_TYPE_ARG3 int
#define SEND_TYPE_ARG4 int
#define SEND_TYPE_RETV int
#define RECV_TYPE_ARG1 int
#define RECV_TYPE_ARG2 void *
#define RECV_TYPE_ARG3 int
#define RECV_TYPE_ARG4 int
#define RECV_TYPE_RETV int
#define RECVFROM_TYPE_ARG1 int
#define RECVFROM_TYPE_ARG2 void
#define RECVFROM_TYPE_ARG3 int
#define RECVFROM_TYPE_ARG4 int
#define RECVFROM_TYPE_ARG5 struct sockaddr
#define RECVFROM_TYPE_ARG6 int
#define RECVFROM_TYPE_RETV int
#define RECVFROM_TYPE_ARG2_IS_VOID 1
#define BSD
/* CURLDEBUG definition enables memory tracking */
/* #define CURLDEBUG */
/* USE_ZLIB on cmd-line */
#ifdef USE_ZLIB
#define HAVE_ZLIB_H 1
#define HAVE_LIBZ 1
#endif
/* USE_OPENSSL on cmd-line */
#ifdef USE_OPENSSL
#define HAVE_CRYPTO_CLEANUP_ALL_EX_DATA 1
#define OPENSSL_NO_KRB5 1
#endif
/* to disable LDAP */
#define CURL_DISABLE_LDAP 1
#define in_addr_t u_long
#if defined(__HIGHC__) || \
(defined(__GNUC__) && (__GNUC__ < 4))
#define ssize_t int
#endif
/* Target HAVE_x section */
#if defined(DJGPP)
#define HAVE_BASENAME 1
#define HAVE_STRCASECMP 1
#define HAVE_SIGACTION 1
#define HAVE_SIGSETJMP 1
#define HAVE_SYS_TIME_H 1
#define HAVE_TERMIOS_H 1
#define HAVE_VARIADIC_MACROS_GCC 1
#elif defined(__WATCOMC__)
#define HAVE_STRCASECMP 1
#elif defined(__HIGHC__)
#define HAVE_SYS_TIME_H 1
#define strerror(e) strerror_s_((e))
#endif
#ifdef MSDOS /* Watt-32 */
#define HAVE_CLOSE_S 1
#endif
#undef word
#undef byte
#endif /* HEADER_CURL_CONFIG_DOS_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/content_encoding.h | #ifndef HEADER_CURL_CONTENT_ENCODING_H
#define HEADER_CURL_CONTENT_ENCODING_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
struct contenc_writer {
const struct content_encoding *handler; /* Encoding handler. */
struct contenc_writer *downstream; /* Downstream writer. */
void *params; /* Encoding-specific storage (variable length). */
};
/* Content encoding writer. */
struct content_encoding {
const char *name; /* Encoding name. */
const char *alias; /* Encoding name alias. */
CURLcode (*init_writer)(struct Curl_easy *data,
struct contenc_writer *writer);
CURLcode (*unencode_write)(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes);
void (*close_writer)(struct Curl_easy *data,
struct contenc_writer *writer);
size_t paramsize;
};
CURLcode Curl_build_unencoding_stack(struct Curl_easy *data,
const char *enclist, int maybechunked);
CURLcode Curl_unencode_write(struct Curl_easy *data,
struct contenc_writer *writer,
const char *buf, size_t nbytes);
void Curl_unencode_cleanup(struct Curl_easy *data);
char *Curl_all_content_encodings(void);
#endif /* HEADER_CURL_CONTENT_ENCODING_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostip.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#ifdef HAVE_SETJMP_H
#include <setjmp.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "rand.h"
#include "share.h"
#include "url.h"
#include "inet_ntop.h"
#include "inet_pton.h"
#include "multiif.h"
#include "doh.h"
#include "warnless.h"
#include "strcase.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if defined(ENABLE_IPV6) && defined(CURL_OSX_CALL_COPYPROXIES)
#include <SystemConfiguration/SCDynamicStoreCopySpecific.h>
#endif
#if defined(CURLRES_SYNCH) && \
defined(HAVE_ALARM) && defined(SIGALRM) && defined(HAVE_SIGSETJMP)
/* alarm-based timeouts can only be used with all the dependencies satisfied */
#define USE_ALARM_TIMEOUT
#endif
#define MAX_HOSTCACHE_LEN (255 + 7) /* max FQDN + colon + port number + zero */
/*
* hostip.c explained
* ==================
*
* The main COMPILE-TIME DEFINES to keep in mind when reading the host*.c
* source file are these:
*
* CURLRES_IPV6 - this host has getaddrinfo() and family, and thus we use
* that. The host may not be able to resolve IPv6, but we don't really have to
* take that into account. Hosts that aren't IPv6-enabled have CURLRES_IPV4
* defined.
*
* CURLRES_ARES - is defined if libcurl is built to use c-ares for
* asynchronous name resolves. This can be Windows or *nix.
*
* CURLRES_THREADED - is defined if libcurl is built to run under (native)
* Windows, and then the name resolve will be done in a new thread, and the
* supported API will be the same as for ares-builds.
*
* If any of the two previous are defined, CURLRES_ASYNCH is defined too. If
* libcurl is not built to use an asynchronous resolver, CURLRES_SYNCH is
* defined.
*
* The host*.c sources files are split up like this:
*
* hostip.c - method-independent resolver functions and utility functions
* hostasyn.c - functions for asynchronous name resolves
* hostsyn.c - functions for synchronous name resolves
* hostip4.c - IPv4 specific functions
* hostip6.c - IPv6 specific functions
*
* The two asynchronous name resolver backends are implemented in:
* asyn-ares.c - functions for ares-using name resolves
* asyn-thread.c - functions for threaded name resolves
* The hostip.h is the united header file for all this. It defines the
* CURLRES_* defines based on the config*.h and curl_setup.h defines.
*/
static void freednsentry(void *freethis);
/*
* Return # of addresses in a Curl_addrinfo struct
*/
int Curl_num_addresses(const struct Curl_addrinfo *addr)
{
int i = 0;
while(addr) {
addr = addr->ai_next;
i++;
}
return i;
}
/*
* Curl_printable_address() stores a printable version of the 1st address
* given in the 'ai' argument. The result will be stored in the buf that is
* bufsize bytes big.
*
* If the conversion fails, the target buffer is empty.
*/
void Curl_printable_address(const struct Curl_addrinfo *ai, char *buf,
size_t bufsize)
{
DEBUGASSERT(bufsize);
buf[0] = 0;
switch(ai->ai_family) {
case AF_INET: {
const struct sockaddr_in *sa4 = (const void *)ai->ai_addr;
const struct in_addr *ipaddr4 = &sa4->sin_addr;
(void)Curl_inet_ntop(ai->ai_family, (const void *)ipaddr4, buf, bufsize);
break;
}
#ifdef ENABLE_IPV6
case AF_INET6: {
const struct sockaddr_in6 *sa6 = (const void *)ai->ai_addr;
const struct in6_addr *ipaddr6 = &sa6->sin6_addr;
(void)Curl_inet_ntop(ai->ai_family, (const void *)ipaddr6, buf, bufsize);
break;
}
#endif
default:
break;
}
}
/*
* Create a hostcache id string for the provided host + port, to be used by
* the DNS caching. Without alloc.
*/
static void
create_hostcache_id(const char *name, int port, char *ptr, size_t buflen)
{
size_t len = strlen(name);
if(len > (buflen - 7))
len = buflen - 7;
/* store and lower case the name */
while(len--)
*ptr++ = (char)TOLOWER(*name++);
msnprintf(ptr, 7, ":%u", port);
}
struct hostcache_prune_data {
long cache_timeout;
time_t now;
};
/*
* This function is set as a callback to be called for every entry in the DNS
* cache when we want to prune old unused entries.
*
* Returning non-zero means remove the entry, return 0 to keep it in the
* cache.
*/
static int
hostcache_timestamp_remove(void *datap, void *hc)
{
struct hostcache_prune_data *data =
(struct hostcache_prune_data *) datap;
struct Curl_dns_entry *c = (struct Curl_dns_entry *) hc;
return (0 != c->timestamp)
&& (data->now - c->timestamp >= data->cache_timeout);
}
/*
* Prune the DNS cache. This assumes that a lock has already been taken.
*/
static void
hostcache_prune(struct Curl_hash *hostcache, long cache_timeout, time_t now)
{
struct hostcache_prune_data user;
user.cache_timeout = cache_timeout;
user.now = now;
Curl_hash_clean_with_criterium(hostcache,
(void *) &user,
hostcache_timestamp_remove);
}
/*
* Library-wide function for pruning the DNS cache. This function takes and
* returns the appropriate locks.
*/
void Curl_hostcache_prune(struct Curl_easy *data)
{
time_t now;
if((data->set.dns_cache_timeout == -1) || !data->dns.hostcache)
/* cache forever means never prune, and NULL hostcache means
we can't do it */
return;
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
time(&now);
/* Remove outdated and unused entries from the hostcache */
hostcache_prune(data->dns.hostcache,
data->set.dns_cache_timeout,
now);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
}
#ifdef HAVE_SIGSETJMP
/* Beware this is a global and unique instance. This is used to store the
return address that we can jump back to from inside a signal handler. This
is not thread-safe stuff. */
sigjmp_buf curl_jmpenv;
#endif
/* lookup address, returns entry if found and not stale */
static struct Curl_dns_entry *fetch_addr(struct Curl_easy *data,
const char *hostname,
int port)
{
struct Curl_dns_entry *dns = NULL;
size_t entry_len;
char entry_id[MAX_HOSTCACHE_LEN];
/* Create an entry id, based upon the hostname and port */
create_hostcache_id(hostname, port, entry_id, sizeof(entry_id));
entry_len = strlen(entry_id);
/* See if its already in our dns cache */
dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1);
/* No entry found in cache, check if we might have a wildcard entry */
if(!dns && data->state.wildcard_resolve) {
create_hostcache_id("*", port, entry_id, sizeof(entry_id));
entry_len = strlen(entry_id);
/* See if it's already in our dns cache */
dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1);
}
if(dns && (data->set.dns_cache_timeout != -1)) {
/* See whether the returned entry is stale. Done before we release lock */
struct hostcache_prune_data user;
time(&user.now);
user.cache_timeout = data->set.dns_cache_timeout;
if(hostcache_timestamp_remove(&user, dns)) {
infof(data, "Hostname in DNS cache was stale, zapped");
dns = NULL; /* the memory deallocation is being handled by the hash */
Curl_hash_delete(data->dns.hostcache, entry_id, entry_len + 1);
}
}
return dns;
}
/*
* Curl_fetch_addr() fetches a 'Curl_dns_entry' already in the DNS cache.
*
* Curl_resolv() checks initially and multi_runsingle() checks each time
* it discovers the handle in the state WAITRESOLVE whether the hostname
* has already been resolved and the address has already been stored in
* the DNS cache. This short circuits waiting for a lot of pending
* lookups for the same hostname requested by different handles.
*
* Returns the Curl_dns_entry entry pointer or NULL if not in the cache.
*
* The returned data *MUST* be "unlocked" with Curl_resolv_unlock() after
* use, or we'll leak memory!
*/
struct Curl_dns_entry *
Curl_fetch_addr(struct Curl_easy *data,
const char *hostname,
int port)
{
struct Curl_dns_entry *dns = NULL;
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = fetch_addr(data, hostname, port);
if(dns)
dns->inuse++; /* we use it! */
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
return dns;
}
#ifndef CURL_DISABLE_SHUFFLE_DNS
UNITTEST CURLcode Curl_shuffle_addr(struct Curl_easy *data,
struct Curl_addrinfo **addr);
/*
* Curl_shuffle_addr() shuffles the order of addresses in a 'Curl_addrinfo'
* struct by re-linking its linked list.
*
* The addr argument should be the address of a pointer to the head node of a
* `Curl_addrinfo` list and it will be modified to point to the new head after
* shuffling.
*
* Not declared static only to make it easy to use in a unit test!
*
* @unittest: 1608
*/
UNITTEST CURLcode Curl_shuffle_addr(struct Curl_easy *data,
struct Curl_addrinfo **addr)
{
CURLcode result = CURLE_OK;
const int num_addrs = Curl_num_addresses(*addr);
if(num_addrs > 1) {
struct Curl_addrinfo **nodes;
infof(data, "Shuffling %i addresses", num_addrs);
nodes = malloc(num_addrs*sizeof(*nodes));
if(nodes) {
int i;
unsigned int *rnd;
const size_t rnd_size = num_addrs * sizeof(*rnd);
/* build a plain array of Curl_addrinfo pointers */
nodes[0] = *addr;
for(i = 1; i < num_addrs; i++) {
nodes[i] = nodes[i-1]->ai_next;
}
rnd = malloc(rnd_size);
if(rnd) {
/* Fisher-Yates shuffle */
if(Curl_rand(data, (unsigned char *)rnd, rnd_size) == CURLE_OK) {
struct Curl_addrinfo *swap_tmp;
for(i = num_addrs - 1; i > 0; i--) {
swap_tmp = nodes[rnd[i] % (i + 1)];
nodes[rnd[i] % (i + 1)] = nodes[i];
nodes[i] = swap_tmp;
}
/* relink list in the new order */
for(i = 1; i < num_addrs; i++) {
nodes[i-1]->ai_next = nodes[i];
}
nodes[num_addrs-1]->ai_next = NULL;
*addr = nodes[0];
}
free(rnd);
}
else
result = CURLE_OUT_OF_MEMORY;
free(nodes);
}
else
result = CURLE_OUT_OF_MEMORY;
}
return result;
}
#endif
/*
* Curl_cache_addr() stores a 'Curl_addrinfo' struct in the DNS cache.
*
* When calling Curl_resolv() has resulted in a response with a returned
* address, we call this function to store the information in the dns
* cache etc
*
* Returns the Curl_dns_entry entry pointer or NULL if the storage failed.
*/
struct Curl_dns_entry *
Curl_cache_addr(struct Curl_easy *data,
struct Curl_addrinfo *addr,
const char *hostname,
int port)
{
char entry_id[MAX_HOSTCACHE_LEN];
size_t entry_len;
struct Curl_dns_entry *dns;
struct Curl_dns_entry *dns2;
#ifndef CURL_DISABLE_SHUFFLE_DNS
/* shuffle addresses if requested */
if(data->set.dns_shuffle_addresses) {
CURLcode result = Curl_shuffle_addr(data, &addr);
if(result)
return NULL;
}
#endif
/* Create a new cache entry */
dns = calloc(1, sizeof(struct Curl_dns_entry));
if(!dns) {
return NULL;
}
/* Create an entry id, based upon the hostname and port */
create_hostcache_id(hostname, port, entry_id, sizeof(entry_id));
entry_len = strlen(entry_id);
dns->inuse = 1; /* the cache has the first reference */
dns->addr = addr; /* this is the address(es) */
time(&dns->timestamp);
if(dns->timestamp == 0)
dns->timestamp = 1; /* zero indicates permanent CURLOPT_RESOLVE entry */
/* Store the resolved data in our DNS cache. */
dns2 = Curl_hash_add(data->dns.hostcache, entry_id, entry_len + 1,
(void *)dns);
if(!dns2) {
free(dns);
return NULL;
}
dns = dns2;
dns->inuse++; /* mark entry as in-use */
return dns;
}
#ifdef ENABLE_IPV6
/* return a static IPv6 resolve for 'localhost' */
static struct Curl_addrinfo *get_localhost6(int port)
{
struct Curl_addrinfo *ca;
const size_t ss_size = sizeof(struct sockaddr_in6);
const size_t hostlen = strlen("localhost");
struct sockaddr_in6 sa6;
unsigned char ipv6[16];
unsigned short port16 = (unsigned short)(port & 0xffff);
ca = calloc(sizeof(struct Curl_addrinfo) + ss_size + hostlen + 1, 1);
if(!ca)
return NULL;
sa6.sin6_family = AF_INET6;
sa6.sin6_port = htons(port16);
sa6.sin6_flowinfo = 0;
sa6.sin6_scope_id = 0;
if(Curl_inet_pton(AF_INET6, "::1", ipv6) < 1)
return NULL;
memcpy(&sa6.sin6_addr, ipv6, sizeof(ipv6));
ca->ai_flags = 0;
ca->ai_family = AF_INET6;
ca->ai_socktype = SOCK_STREAM;
ca->ai_protocol = IPPROTO_TCP;
ca->ai_addrlen = (curl_socklen_t)ss_size;
ca->ai_next = NULL;
ca->ai_addr = (void *)((char *)ca + sizeof(struct Curl_addrinfo));
memcpy(ca->ai_addr, &sa6, ss_size);
ca->ai_canonname = (char *)ca->ai_addr + ss_size;
strcpy(ca->ai_canonname, "localhost");
return ca;
}
#else
#define get_localhost6(x) NULL
#endif
/* return a static IPv4 resolve for 'localhost' */
static struct Curl_addrinfo *get_localhost(int port)
{
struct Curl_addrinfo *ca;
const size_t ss_size = sizeof(struct sockaddr_in);
const size_t hostlen = strlen("localhost");
struct sockaddr_in sa;
unsigned int ipv4;
unsigned short port16 = (unsigned short)(port & 0xffff);
/* memset to clear the sa.sin_zero field */
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_port = htons(port16);
if(Curl_inet_pton(AF_INET, "127.0.0.1", (char *)&ipv4) < 1)
return NULL;
memcpy(&sa.sin_addr, &ipv4, sizeof(ipv4));
ca = calloc(sizeof(struct Curl_addrinfo) + ss_size + hostlen + 1, 1);
if(!ca)
return NULL;
ca->ai_flags = 0;
ca->ai_family = AF_INET;
ca->ai_socktype = SOCK_STREAM;
ca->ai_protocol = IPPROTO_TCP;
ca->ai_addrlen = (curl_socklen_t)ss_size;
ca->ai_addr = (void *)((char *)ca + sizeof(struct Curl_addrinfo));
memcpy(ca->ai_addr, &sa, ss_size);
ca->ai_canonname = (char *)ca->ai_addr + ss_size;
strcpy(ca->ai_canonname, "localhost");
ca->ai_next = get_localhost6(port);
return ca;
}
#ifdef ENABLE_IPV6
/*
* Curl_ipv6works() returns TRUE if IPv6 seems to work.
*/
bool Curl_ipv6works(struct Curl_easy *data)
{
if(data) {
/* the nature of most system is that IPv6 status doesn't come and go
during a program's lifetime so we only probe the first time and then we
have the info kept for fast re-use */
DEBUGASSERT(data);
DEBUGASSERT(data->multi);
return data->multi->ipv6_works;
}
else {
int ipv6_works = -1;
/* probe to see if we have a working IPv6 stack */
curl_socket_t s = socket(PF_INET6, SOCK_DGRAM, 0);
if(s == CURL_SOCKET_BAD)
/* an IPv6 address was requested but we can't get/use one */
ipv6_works = 0;
else {
ipv6_works = 1;
sclose(s);
}
return (ipv6_works>0)?TRUE:FALSE;
}
}
#endif /* ENABLE_IPV6 */
/*
* Curl_host_is_ipnum() returns TRUE if the given string is a numerical IPv4
* (or IPv6 if supported) address.
*/
bool Curl_host_is_ipnum(const char *hostname)
{
struct in_addr in;
#ifdef ENABLE_IPV6
struct in6_addr in6;
#endif
if(Curl_inet_pton(AF_INET, hostname, &in) > 0
#ifdef ENABLE_IPV6
|| Curl_inet_pton(AF_INET6, hostname, &in6) > 0
#endif
)
return TRUE;
return FALSE;
}
/*
* Curl_resolv() is the main name resolve function within libcurl. It resolves
* a name and returns a pointer to the entry in the 'entry' argument (if one
* is provided). This function might return immediately if we're using asynch
* resolves. See the return codes.
*
* The cache entry we return will get its 'inuse' counter increased when this
* function is used. You MUST call Curl_resolv_unlock() later (when you're
* done using this struct) to decrease the counter again.
*
* Return codes:
*
* CURLRESOLV_ERROR (-1) = error, no pointer
* CURLRESOLV_RESOLVED (0) = OK, pointer provided
* CURLRESOLV_PENDING (1) = waiting for response, no pointer
*/
enum resolve_t Curl_resolv(struct Curl_easy *data,
const char *hostname,
int port,
bool allowDOH,
struct Curl_dns_entry **entry)
{
struct Curl_dns_entry *dns = NULL;
CURLcode result;
enum resolve_t rc = CURLRESOLV_ERROR; /* default to failure */
struct connectdata *conn = data->conn;
*entry = NULL;
conn->bits.doh = FALSE; /* default is not */
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = fetch_addr(data, hostname, port);
if(dns) {
infof(data, "Hostname %s was found in DNS cache", hostname);
dns->inuse++; /* we use it! */
rc = CURLRESOLV_RESOLVED;
}
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
if(!dns) {
/* The entry was not in the cache. Resolve it to IP address */
struct Curl_addrinfo *addr = NULL;
int respwait = 0;
struct in_addr in;
#ifndef USE_RESOLVE_ON_IPS
const
#endif
bool ipnum = FALSE;
/* notify the resolver start callback */
if(data->set.resolver_start) {
int st;
Curl_set_in_callback(data, true);
st = data->set.resolver_start(
#ifdef USE_CURL_ASYNC
data->state.async.resolver,
#else
NULL,
#endif
NULL,
data->set.resolver_start_client);
Curl_set_in_callback(data, false);
if(st)
return CURLRESOLV_ERROR;
}
#if defined(ENABLE_IPV6) && defined(CURL_OSX_CALL_COPYPROXIES)
{
/*
* The automagic conversion from IPv4 literals to IPv6 literals only
* works if the SCDynamicStoreCopyProxies system function gets called
* first. As Curl currently doesn't support system-wide HTTP proxies, we
* therefore don't use any value this function might return.
*
* This function is only available on a macOS and is not needed for
* IPv4-only builds, hence the conditions above.
*/
CFDictionaryRef dict = SCDynamicStoreCopyProxies(NULL);
if(dict)
CFRelease(dict);
}
#endif
#ifndef USE_RESOLVE_ON_IPS
/* First check if this is an IPv4 address string */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
addr = Curl_ip2addr(AF_INET, &in, hostname, port);
#ifdef ENABLE_IPV6
if(!addr) {
struct in6_addr in6;
/* check if this is an IPv6 address string */
if(Curl_inet_pton(AF_INET6, hostname, &in6) > 0)
/* This is an IPv6 address literal */
addr = Curl_ip2addr(AF_INET6, &in6, hostname, port);
}
#endif /* ENABLE_IPV6 */
#else /* if USE_RESOLVE_ON_IPS */
/* First check if this is an IPv4 address string */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
ipnum = TRUE;
#ifdef ENABLE_IPV6
else {
struct in6_addr in6;
/* check if this is an IPv6 address string */
if(Curl_inet_pton(AF_INET6, hostname, &in6) > 0)
/* This is an IPv6 address literal */
ipnum = TRUE;
}
#endif /* ENABLE_IPV6 */
#endif /* !USE_RESOLVE_ON_IPS */
if(!addr) {
if(conn->ip_version == CURL_IPRESOLVE_V6 && !Curl_ipv6works(data))
return CURLRESOLV_ERROR;
if(strcasecompare(hostname, "localhost"))
addr = get_localhost(port);
else if(allowDOH && data->set.doh && !ipnum)
addr = Curl_doh(data, hostname, port, &respwait);
else {
/* Check what IP specifics the app has requested and if we can provide
* it. If not, bail out. */
if(!Curl_ipvalid(data, conn))
return CURLRESOLV_ERROR;
/* If Curl_getaddrinfo() returns NULL, 'respwait' might be set to a
non-zero value indicating that we need to wait for the response to
the resolve call */
addr = Curl_getaddrinfo(data, hostname, port, &respwait);
}
}
if(!addr) {
if(respwait) {
/* the response to our resolve call will come asynchronously at
a later time, good or bad */
/* First, check that we haven't received the info by now */
result = Curl_resolv_check(data, &dns);
if(result) /* error detected */
return CURLRESOLV_ERROR;
if(dns)
rc = CURLRESOLV_RESOLVED; /* pointer provided */
else
rc = CURLRESOLV_PENDING; /* no info yet */
}
}
else {
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
/* we got a response, store it in the cache */
dns = Curl_cache_addr(data, addr, hostname, port);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
if(!dns)
/* returned failure, bail out nicely */
Curl_freeaddrinfo(addr);
else
rc = CURLRESOLV_RESOLVED;
}
}
*entry = dns;
return rc;
}
#ifdef USE_ALARM_TIMEOUT
/*
* This signal handler jumps back into the main libcurl code and continues
* execution. This effectively causes the remainder of the application to run
* within a signal handler which is nonportable and could lead to problems.
*/
static
void alarmfunc(int sig)
{
/* this is for "-ansi -Wall -pedantic" to stop complaining! (rabe) */
(void)sig;
siglongjmp(curl_jmpenv, 1);
}
#endif /* USE_ALARM_TIMEOUT */
/*
* Curl_resolv_timeout() is the same as Curl_resolv() but specifies a
* timeout. This function might return immediately if we're using asynch
* resolves. See the return codes.
*
* The cache entry we return will get its 'inuse' counter increased when this
* function is used. You MUST call Curl_resolv_unlock() later (when you're
* done using this struct) to decrease the counter again.
*
* If built with a synchronous resolver and use of signals is not
* disabled by the application, then a nonzero timeout will cause a
* timeout after the specified number of milliseconds. Otherwise, timeout
* is ignored.
*
* Return codes:
*
* CURLRESOLV_TIMEDOUT(-2) = warning, time too short or previous alarm expired
* CURLRESOLV_ERROR (-1) = error, no pointer
* CURLRESOLV_RESOLVED (0) = OK, pointer provided
* CURLRESOLV_PENDING (1) = waiting for response, no pointer
*/
enum resolve_t Curl_resolv_timeout(struct Curl_easy *data,
const char *hostname,
int port,
struct Curl_dns_entry **entry,
timediff_t timeoutms)
{
#ifdef USE_ALARM_TIMEOUT
#ifdef HAVE_SIGACTION
struct sigaction keep_sigact; /* store the old struct here */
volatile bool keep_copysig = FALSE; /* whether old sigact has been saved */
struct sigaction sigact;
#else
#ifdef HAVE_SIGNAL
void (*keep_sigact)(int); /* store the old handler here */
#endif /* HAVE_SIGNAL */
#endif /* HAVE_SIGACTION */
volatile long timeout;
volatile unsigned int prev_alarm = 0;
#endif /* USE_ALARM_TIMEOUT */
enum resolve_t rc;
*entry = NULL;
if(timeoutms < 0)
/* got an already expired timeout */
return CURLRESOLV_TIMEDOUT;
#ifdef USE_ALARM_TIMEOUT
if(data->set.no_signal)
/* Ignore the timeout when signals are disabled */
timeout = 0;
else
timeout = (timeoutms > LONG_MAX) ? LONG_MAX : (long)timeoutms;
if(!timeout)
/* USE_ALARM_TIMEOUT defined, but no timeout actually requested */
return Curl_resolv(data, hostname, port, TRUE, entry);
if(timeout < 1000) {
/* The alarm() function only provides integer second resolution, so if
we want to wait less than one second we must bail out already now. */
failf(data,
"remaining timeout of %ld too small to resolve via SIGALRM method",
timeout);
return CURLRESOLV_TIMEDOUT;
}
/* This allows us to time-out from the name resolver, as the timeout
will generate a signal and we will siglongjmp() from that here.
This technique has problems (see alarmfunc).
This should be the last thing we do before calling Curl_resolv(),
as otherwise we'd have to worry about variables that get modified
before we invoke Curl_resolv() (and thus use "volatile"). */
if(sigsetjmp(curl_jmpenv, 1)) {
/* this is coming from a siglongjmp() after an alarm signal */
failf(data, "name lookup timed out");
rc = CURLRESOLV_ERROR;
goto clean_up;
}
else {
/*************************************************************
* Set signal handler to catch SIGALRM
* Store the old value to be able to set it back later!
*************************************************************/
#ifdef HAVE_SIGACTION
sigaction(SIGALRM, NULL, &sigact);
keep_sigact = sigact;
keep_copysig = TRUE; /* yes, we have a copy */
sigact.sa_handler = alarmfunc;
#ifdef SA_RESTART
/* HPUX doesn't have SA_RESTART but defaults to that behavior! */
sigact.sa_flags &= ~SA_RESTART;
#endif
/* now set the new struct */
sigaction(SIGALRM, &sigact, NULL);
#else /* HAVE_SIGACTION */
/* no sigaction(), revert to the much lamer signal() */
#ifdef HAVE_SIGNAL
keep_sigact = signal(SIGALRM, alarmfunc);
#endif
#endif /* HAVE_SIGACTION */
/* alarm() makes a signal get sent when the timeout fires off, and that
will abort system calls */
prev_alarm = alarm(curlx_sltoui(timeout/1000L));
}
#else
#ifndef CURLRES_ASYNCH
if(timeoutms)
infof(data, "timeout on name lookup is not supported");
#else
(void)timeoutms; /* timeoutms not used with an async resolver */
#endif
#endif /* USE_ALARM_TIMEOUT */
/* Perform the actual name resolution. This might be interrupted by an
* alarm if it takes too long.
*/
rc = Curl_resolv(data, hostname, port, TRUE, entry);
#ifdef USE_ALARM_TIMEOUT
clean_up:
if(!prev_alarm)
/* deactivate a possibly active alarm before uninstalling the handler */
alarm(0);
#ifdef HAVE_SIGACTION
if(keep_copysig) {
/* we got a struct as it looked before, now put that one back nice
and clean */
sigaction(SIGALRM, &keep_sigact, NULL); /* put it back */
}
#else
#ifdef HAVE_SIGNAL
/* restore the previous SIGALRM handler */
signal(SIGALRM, keep_sigact);
#endif
#endif /* HAVE_SIGACTION */
/* switch back the alarm() to either zero or to what it was before minus
the time we spent until now! */
if(prev_alarm) {
/* there was an alarm() set before us, now put it back */
timediff_t elapsed_secs = Curl_timediff(Curl_now(),
data->conn->created) / 1000;
/* the alarm period is counted in even number of seconds */
unsigned long alarm_set = (unsigned long)(prev_alarm - elapsed_secs);
if(!alarm_set ||
((alarm_set >= 0x80000000) && (prev_alarm < 0x80000000)) ) {
/* if the alarm time-left reached zero or turned "negative" (counted
with unsigned values), we should fire off a SIGALRM here, but we
won't, and zero would be to switch it off so we never set it to
less than 1! */
alarm(1);
rc = CURLRESOLV_TIMEDOUT;
failf(data, "Previous alarm fired off!");
}
else
alarm((unsigned int)alarm_set);
}
#endif /* USE_ALARM_TIMEOUT */
return rc;
}
/*
* Curl_resolv_unlock() unlocks the given cached DNS entry. When this has been
* made, the struct may be destroyed due to pruning. It is important that only
* one unlock is made for each Curl_resolv() call.
*
* May be called with 'data' == NULL for global cache.
*/
void Curl_resolv_unlock(struct Curl_easy *data, struct Curl_dns_entry *dns)
{
if(data && data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
freednsentry(dns);
if(data && data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
}
/*
* File-internal: release cache dns entry reference, free if inuse drops to 0
*/
static void freednsentry(void *freethis)
{
struct Curl_dns_entry *dns = (struct Curl_dns_entry *) freethis;
DEBUGASSERT(dns && (dns->inuse>0));
dns->inuse--;
if(dns->inuse == 0) {
Curl_freeaddrinfo(dns->addr);
free(dns);
}
}
/*
* Curl_mk_dnscache() inits a new DNS cache and returns success/failure.
*/
int Curl_mk_dnscache(struct Curl_hash *hash)
{
return Curl_hash_init(hash, 7, Curl_hash_str, Curl_str_key_compare,
freednsentry);
}
/*
* Curl_hostcache_clean()
*
* This _can_ be called with 'data' == NULL but then of course no locking
* can be done!
*/
void Curl_hostcache_clean(struct Curl_easy *data,
struct Curl_hash *hash)
{
if(data && data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
Curl_hash_clean(hash);
if(data && data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
}
CURLcode Curl_loadhostpairs(struct Curl_easy *data)
{
struct curl_slist *hostp;
char hostname[256];
int port = 0;
/* Default is no wildcard found */
data->state.wildcard_resolve = false;
for(hostp = data->state.resolve; hostp; hostp = hostp->next) {
char entry_id[MAX_HOSTCACHE_LEN];
if(!hostp->data)
continue;
if(hostp->data[0] == '-') {
size_t entry_len;
if(2 != sscanf(hostp->data + 1, "%255[^:]:%d", hostname, &port)) {
infof(data, "Couldn't parse CURLOPT_RESOLVE removal entry '%s'",
hostp->data);
continue;
}
/* Create an entry id, based upon the hostname and port */
create_hostcache_id(hostname, port, entry_id, sizeof(entry_id));
entry_len = strlen(entry_id);
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
/* delete entry, ignore if it didn't exist */
Curl_hash_delete(data->dns.hostcache, entry_id, entry_len + 1);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
}
else {
struct Curl_dns_entry *dns;
struct Curl_addrinfo *head = NULL, *tail = NULL;
size_t entry_len;
char address[64];
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
char *addresses = NULL;
#endif
char *addr_begin;
char *addr_end;
char *port_ptr;
char *end_ptr;
bool permanent = TRUE;
char *host_begin;
char *host_end;
unsigned long tmp_port;
bool error = true;
host_begin = hostp->data;
if(host_begin[0] == '+') {
host_begin++;
permanent = FALSE;
}
host_end = strchr(host_begin, ':');
if(!host_end ||
((host_end - host_begin) >= (ptrdiff_t)sizeof(hostname)))
goto err;
memcpy(hostname, host_begin, host_end - host_begin);
hostname[host_end - host_begin] = '\0';
port_ptr = host_end + 1;
tmp_port = strtoul(port_ptr, &end_ptr, 10);
if(tmp_port > USHRT_MAX || end_ptr == port_ptr || *end_ptr != ':')
goto err;
port = (int)tmp_port;
#if !defined(CURL_DISABLE_VERBOSE_STRINGS)
addresses = end_ptr + 1;
#endif
while(*end_ptr) {
size_t alen;
struct Curl_addrinfo *ai;
addr_begin = end_ptr + 1;
addr_end = strchr(addr_begin, ',');
if(!addr_end)
addr_end = addr_begin + strlen(addr_begin);
end_ptr = addr_end;
/* allow IP(v6) address within [brackets] */
if(*addr_begin == '[') {
if(addr_end == addr_begin || *(addr_end - 1) != ']')
goto err;
++addr_begin;
--addr_end;
}
alen = addr_end - addr_begin;
if(!alen)
continue;
if(alen >= sizeof(address))
goto err;
memcpy(address, addr_begin, alen);
address[alen] = '\0';
#ifndef ENABLE_IPV6
if(strchr(address, ':')) {
infof(data, "Ignoring resolve address '%s', missing IPv6 support.",
address);
continue;
}
#endif
ai = Curl_str2addr(address, port);
if(!ai) {
infof(data, "Resolve address '%s' found illegal!", address);
goto err;
}
if(tail) {
tail->ai_next = ai;
tail = tail->ai_next;
}
else {
head = tail = ai;
}
}
if(!head)
goto err;
error = false;
err:
if(error) {
failf(data, "Couldn't parse CURLOPT_RESOLVE entry '%s'!",
hostp->data);
Curl_freeaddrinfo(head);
return CURLE_SETOPT_OPTION_SYNTAX;
}
/* Create an entry id, based upon the hostname and port */
create_hostcache_id(hostname, port, entry_id, sizeof(entry_id));
entry_len = strlen(entry_id);
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
/* See if it's already in our dns cache */
dns = Curl_hash_pick(data->dns.hostcache, entry_id, entry_len + 1);
if(dns) {
infof(data, "RESOLVE %s:%d is - old addresses discarded!",
hostname, port);
/* delete old entry, there are two reasons for this
1. old entry may have different addresses.
2. even if entry with correct addresses is already in the cache,
but if it is close to expire, then by the time next http
request is made, it can get expired and pruned because old
entry is not necessarily marked as permanent.
3. when adding a non-permanent entry, we want it to remove and
replace an existing permanent entry.
4. when adding a non-permanent entry, we want it to get a "fresh"
timeout that starts _now_. */
Curl_hash_delete(data->dns.hostcache, entry_id, entry_len + 1);
}
/* put this new host in the cache */
dns = Curl_cache_addr(data, head, hostname, port);
if(dns) {
if(permanent)
dns->timestamp = 0; /* mark as permanent */
/* release the returned reference; the cache itself will keep the
* entry alive: */
dns->inuse--;
}
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
if(!dns) {
Curl_freeaddrinfo(head);
return CURLE_OUT_OF_MEMORY;
}
infof(data, "Added %s:%d:%s to DNS cache%s",
hostname, port, addresses, permanent ? "" : " (non-permanent)");
/* Wildcard hostname */
if(hostname[0] == '*' && hostname[1] == '\0') {
infof(data, "RESOLVE %s:%d is wildcard, enabling wildcard checks",
hostname, port);
data->state.wildcard_resolve = true;
}
}
}
data->state.resolve = NULL; /* dealt with now */
return CURLE_OK;
}
CURLcode Curl_resolv_check(struct Curl_easy *data,
struct Curl_dns_entry **dns)
{
#if defined(CURL_DISABLE_DOH) && !defined(CURLRES_ASYNCH)
(void)dns;
#endif
if(data->conn->bits.doh)
return Curl_doh_is_resolved(data, dns);
return Curl_resolver_is_resolved(data, dns);
}
int Curl_resolv_getsock(struct Curl_easy *data,
curl_socket_t *socks)
{
#ifdef CURLRES_ASYNCH
if(data->conn->bits.doh)
/* nothing to wait for during DoH resolve, those handles have their own
sockets */
return GETSOCK_BLANK;
return Curl_resolver_getsock(data, socks);
#else
(void)data;
(void)socks;
return GETSOCK_BLANK;
#endif
}
/* Call this function after Curl_connect() has returned async=TRUE and
then a successful name resolve has been received.
Note: this function disconnects and frees the conn data in case of
resolve failure */
CURLcode Curl_once_resolved(struct Curl_easy *data, bool *protocol_done)
{
CURLcode result;
struct connectdata *conn = data->conn;
#ifdef USE_CURL_ASYNC
if(data->state.async.dns) {
conn->dns_entry = data->state.async.dns;
data->state.async.dns = NULL;
}
#endif
result = Curl_setup_conn(data, protocol_done);
if(result) {
Curl_detach_connnection(data);
Curl_conncache_remove_conn(data, conn, TRUE);
Curl_disconnect(data, conn, TRUE);
}
return result;
}
/*
* Curl_resolver_error() calls failf() with the appropriate message after a
* resolve error
*/
#ifdef USE_CURL_ASYNC
CURLcode Curl_resolver_error(struct Curl_easy *data)
{
const char *host_or_proxy;
CURLcode result;
#ifndef CURL_DISABLE_PROXY
struct connectdata *conn = data->conn;
if(conn->bits.httpproxy) {
host_or_proxy = "proxy";
result = CURLE_COULDNT_RESOLVE_PROXY;
}
else
#endif
{
host_or_proxy = "host";
result = CURLE_COULDNT_RESOLVE_HOST;
}
failf(data, "Could not resolve %s: %s", host_or_proxy,
data->state.async.hostname);
return result;
}
#endif /* USE_CURL_ASYNC */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/smtp.h | #ifndef HEADER_CURL_SMTP_H
#define HEADER_CURL_SMTP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2009 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "pingpong.h"
#include "curl_sasl.h"
/****************************************************************************
* SMTP unique setup
***************************************************************************/
typedef enum {
SMTP_STOP, /* do nothing state, stops the state machine */
SMTP_SERVERGREET, /* waiting for the initial greeting immediately after
a connect */
SMTP_EHLO,
SMTP_HELO,
SMTP_STARTTLS,
SMTP_UPGRADETLS, /* asynchronously upgrade the connection to SSL/TLS
(multi mode only) */
SMTP_AUTH,
SMTP_COMMAND, /* VRFY, EXPN, NOOP, RSET and HELP */
SMTP_MAIL, /* MAIL FROM */
SMTP_RCPT, /* RCPT TO */
SMTP_DATA,
SMTP_POSTDATA,
SMTP_QUIT,
SMTP_LAST /* never used */
} smtpstate;
/* This SMTP struct is used in the Curl_easy. All SMTP data that is
connection-oriented must be in smtp_conn to properly deal with the fact that
perhaps the Curl_easy is changed between the times the connection is
used. */
struct SMTP {
curl_pp_transfer transfer;
char *custom; /* Custom Request */
struct curl_slist *rcpt; /* Recipient list */
bool rcpt_had_ok; /* Whether any of RCPT TO commands (depends on
total number of recipients) succeeded so far */
bool trailing_crlf; /* Specifies if the trailing CRLF is present */
int rcpt_last_error; /* The last error received for RCPT TO command */
size_t eob; /* Number of bytes of the EOB (End Of Body) that
have been received so far */
};
/* smtp_conn is used for struct connection-oriented data in the connectdata
struct */
struct smtp_conn {
struct pingpong pp;
smtpstate state; /* Always use smtp.c:state() to change state! */
bool ssldone; /* Is connect() over SSL done? */
char *domain; /* Client address/name to send in the EHLO */
struct SASL sasl; /* SASL-related storage */
bool tls_supported; /* StartTLS capability supported by server */
bool size_supported; /* If server supports SIZE extension according to
RFC 1870 */
bool utf8_supported; /* If server supports SMTPUTF8 extension according
to RFC 6531 */
bool auth_supported; /* AUTH capability supported by server */
};
extern const struct Curl_handler Curl_handler_smtp;
extern const struct Curl_handler Curl_handler_smtps;
/* this is the 5-bytes End-Of-Body marker for SMTP */
#define SMTP_EOB "\x0d\x0a\x2e\x0d\x0a"
#define SMTP_EOB_LEN 5
#define SMTP_EOB_FIND_LEN 3
/* if found in data, replace it with this string instead */
#define SMTP_EOB_REPL "\x0d\x0a\x2e\x2e"
#define SMTP_EOB_REPL_LEN 4
CURLcode Curl_smtp_escape_eob(struct Curl_easy *data, const ssize_t nread);
#endif /* HEADER_CURL_SMTP_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_threads.h | #ifndef HEADER_CURL_THREADS_H
#define HEADER_CURL_THREADS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_THREADS_POSIX)
# define CURL_STDCALL
# define curl_mutex_t pthread_mutex_t
# define curl_thread_t pthread_t *
# define curl_thread_t_null (pthread_t *)0
# define Curl_mutex_init(m) pthread_mutex_init(m, NULL)
# define Curl_mutex_acquire(m) pthread_mutex_lock(m)
# define Curl_mutex_release(m) pthread_mutex_unlock(m)
# define Curl_mutex_destroy(m) pthread_mutex_destroy(m)
#elif defined(USE_THREADS_WIN32)
# define CURL_STDCALL __stdcall
# define curl_mutex_t CRITICAL_SECTION
# define curl_thread_t HANDLE
# define curl_thread_t_null (HANDLE)0
# if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
(_WIN32_WINNT < _WIN32_WINNT_VISTA) || \
(defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
# define Curl_mutex_init(m) InitializeCriticalSection(m)
# else
# define Curl_mutex_init(m) InitializeCriticalSectionEx(m, 0, 1)
# endif
# define Curl_mutex_acquire(m) EnterCriticalSection(m)
# define Curl_mutex_release(m) LeaveCriticalSection(m)
# define Curl_mutex_destroy(m) DeleteCriticalSection(m)
#endif
#if defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
/* !checksrc! disable SPACEBEFOREPAREN 1 */
curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void *),
void *arg);
void Curl_thread_destroy(curl_thread_t hnd);
int Curl_thread_join(curl_thread_t *hnd);
#endif /* USE_THREADS_POSIX || USE_THREADS_WIN32 */
#endif /* HEADER_CURL_THREADS_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_sspi.h | #ifndef HEADER_CURL_SSPI_H
#define HEADER_CURL_SSPI_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_WINDOWS_SSPI
#include <curl/curl.h>
/*
* When including the following three headers, it is mandatory to define either
* SECURITY_WIN32 or SECURITY_KERNEL, indicating who is compiling the code.
*/
#undef SECURITY_WIN32
#undef SECURITY_KERNEL
#define SECURITY_WIN32 1
#include <security.h>
#include <sspi.h>
#include <rpc.h>
CURLcode Curl_sspi_global_init(void);
void Curl_sspi_global_cleanup(void);
/* This is used to populate the domain in a SSPI identity structure */
CURLcode Curl_override_sspi_http_realm(const char *chlg,
SEC_WINNT_AUTH_IDENTITY *identity);
/* This is used to generate an SSPI identity structure */
CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
SEC_WINNT_AUTH_IDENTITY *identity);
/* This is used to free an SSPI identity structure */
void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity);
/* Forward-declaration of global variables defined in curl_sspi.c */
extern HMODULE s_hSecDll;
extern PSecurityFunctionTable s_pSecFn;
/* Provide some definitions missing in old headers */
#define SP_NAME_DIGEST "WDigest"
#define SP_NAME_NTLM "NTLM"
#define SP_NAME_NEGOTIATE "Negotiate"
#define SP_NAME_KERBEROS "Kerberos"
#ifndef ISC_REQ_USE_HTTP_STYLE
#define ISC_REQ_USE_HTTP_STYLE 0x01000000
#endif
#ifndef ISC_RET_REPLAY_DETECT
#define ISC_RET_REPLAY_DETECT 0x00000004
#endif
#ifndef ISC_RET_SEQUENCE_DETECT
#define ISC_RET_SEQUENCE_DETECT 0x00000008
#endif
#ifndef ISC_RET_CONFIDENTIALITY
#define ISC_RET_CONFIDENTIALITY 0x00000010
#endif
#ifndef ISC_RET_ALLOCATED_MEMORY
#define ISC_RET_ALLOCATED_MEMORY 0x00000100
#endif
#ifndef ISC_RET_STREAM
#define ISC_RET_STREAM 0x00008000
#endif
#ifndef SEC_E_INSUFFICIENT_MEMORY
# define SEC_E_INSUFFICIENT_MEMORY ((HRESULT)0x80090300L)
#endif
#ifndef SEC_E_INVALID_HANDLE
# define SEC_E_INVALID_HANDLE ((HRESULT)0x80090301L)
#endif
#ifndef SEC_E_UNSUPPORTED_FUNCTION
# define SEC_E_UNSUPPORTED_FUNCTION ((HRESULT)0x80090302L)
#endif
#ifndef SEC_E_TARGET_UNKNOWN
# define SEC_E_TARGET_UNKNOWN ((HRESULT)0x80090303L)
#endif
#ifndef SEC_E_INTERNAL_ERROR
# define SEC_E_INTERNAL_ERROR ((HRESULT)0x80090304L)
#endif
#ifndef SEC_E_SECPKG_NOT_FOUND
# define SEC_E_SECPKG_NOT_FOUND ((HRESULT)0x80090305L)
#endif
#ifndef SEC_E_NOT_OWNER
# define SEC_E_NOT_OWNER ((HRESULT)0x80090306L)
#endif
#ifndef SEC_E_CANNOT_INSTALL
# define SEC_E_CANNOT_INSTALL ((HRESULT)0x80090307L)
#endif
#ifndef SEC_E_INVALID_TOKEN
# define SEC_E_INVALID_TOKEN ((HRESULT)0x80090308L)
#endif
#ifndef SEC_E_CANNOT_PACK
# define SEC_E_CANNOT_PACK ((HRESULT)0x80090309L)
#endif
#ifndef SEC_E_QOP_NOT_SUPPORTED
# define SEC_E_QOP_NOT_SUPPORTED ((HRESULT)0x8009030AL)
#endif
#ifndef SEC_E_NO_IMPERSONATION
# define SEC_E_NO_IMPERSONATION ((HRESULT)0x8009030BL)
#endif
#ifndef SEC_E_LOGON_DENIED
# define SEC_E_LOGON_DENIED ((HRESULT)0x8009030CL)
#endif
#ifndef SEC_E_UNKNOWN_CREDENTIALS
# define SEC_E_UNKNOWN_CREDENTIALS ((HRESULT)0x8009030DL)
#endif
#ifndef SEC_E_NO_CREDENTIALS
# define SEC_E_NO_CREDENTIALS ((HRESULT)0x8009030EL)
#endif
#ifndef SEC_E_MESSAGE_ALTERED
# define SEC_E_MESSAGE_ALTERED ((HRESULT)0x8009030FL)
#endif
#ifndef SEC_E_OUT_OF_SEQUENCE
# define SEC_E_OUT_OF_SEQUENCE ((HRESULT)0x80090310L)
#endif
#ifndef SEC_E_NO_AUTHENTICATING_AUTHORITY
# define SEC_E_NO_AUTHENTICATING_AUTHORITY ((HRESULT)0x80090311L)
#endif
#ifndef SEC_E_BAD_PKGID
# define SEC_E_BAD_PKGID ((HRESULT)0x80090316L)
#endif
#ifndef SEC_E_CONTEXT_EXPIRED
# define SEC_E_CONTEXT_EXPIRED ((HRESULT)0x80090317L)
#endif
#ifndef SEC_E_INCOMPLETE_MESSAGE
# define SEC_E_INCOMPLETE_MESSAGE ((HRESULT)0x80090318L)
#endif
#ifndef SEC_E_INCOMPLETE_CREDENTIALS
# define SEC_E_INCOMPLETE_CREDENTIALS ((HRESULT)0x80090320L)
#endif
#ifndef SEC_E_BUFFER_TOO_SMALL
# define SEC_E_BUFFER_TOO_SMALL ((HRESULT)0x80090321L)
#endif
#ifndef SEC_E_WRONG_PRINCIPAL
# define SEC_E_WRONG_PRINCIPAL ((HRESULT)0x80090322L)
#endif
#ifndef SEC_E_TIME_SKEW
# define SEC_E_TIME_SKEW ((HRESULT)0x80090324L)
#endif
#ifndef SEC_E_UNTRUSTED_ROOT
# define SEC_E_UNTRUSTED_ROOT ((HRESULT)0x80090325L)
#endif
#ifndef SEC_E_ILLEGAL_MESSAGE
# define SEC_E_ILLEGAL_MESSAGE ((HRESULT)0x80090326L)
#endif
#ifndef SEC_E_CERT_UNKNOWN
# define SEC_E_CERT_UNKNOWN ((HRESULT)0x80090327L)
#endif
#ifndef SEC_E_CERT_EXPIRED
# define SEC_E_CERT_EXPIRED ((HRESULT)0x80090328L)
#endif
#ifndef SEC_E_ENCRYPT_FAILURE
# define SEC_E_ENCRYPT_FAILURE ((HRESULT)0x80090329L)
#endif
#ifndef SEC_E_DECRYPT_FAILURE
# define SEC_E_DECRYPT_FAILURE ((HRESULT)0x80090330L)
#endif
#ifndef SEC_E_ALGORITHM_MISMATCH
# define SEC_E_ALGORITHM_MISMATCH ((HRESULT)0x80090331L)
#endif
#ifndef SEC_E_SECURITY_QOS_FAILED
# define SEC_E_SECURITY_QOS_FAILED ((HRESULT)0x80090332L)
#endif
#ifndef SEC_E_UNFINISHED_CONTEXT_DELETED
# define SEC_E_UNFINISHED_CONTEXT_DELETED ((HRESULT)0x80090333L)
#endif
#ifndef SEC_E_NO_TGT_REPLY
# define SEC_E_NO_TGT_REPLY ((HRESULT)0x80090334L)
#endif
#ifndef SEC_E_NO_IP_ADDRESSES
# define SEC_E_NO_IP_ADDRESSES ((HRESULT)0x80090335L)
#endif
#ifndef SEC_E_WRONG_CREDENTIAL_HANDLE
# define SEC_E_WRONG_CREDENTIAL_HANDLE ((HRESULT)0x80090336L)
#endif
#ifndef SEC_E_CRYPTO_SYSTEM_INVALID
# define SEC_E_CRYPTO_SYSTEM_INVALID ((HRESULT)0x80090337L)
#endif
#ifndef SEC_E_MAX_REFERRALS_EXCEEDED
# define SEC_E_MAX_REFERRALS_EXCEEDED ((HRESULT)0x80090338L)
#endif
#ifndef SEC_E_MUST_BE_KDC
# define SEC_E_MUST_BE_KDC ((HRESULT)0x80090339L)
#endif
#ifndef SEC_E_STRONG_CRYPTO_NOT_SUPPORTED
# define SEC_E_STRONG_CRYPTO_NOT_SUPPORTED ((HRESULT)0x8009033AL)
#endif
#ifndef SEC_E_TOO_MANY_PRINCIPALS
# define SEC_E_TOO_MANY_PRINCIPALS ((HRESULT)0x8009033BL)
#endif
#ifndef SEC_E_NO_PA_DATA
# define SEC_E_NO_PA_DATA ((HRESULT)0x8009033CL)
#endif
#ifndef SEC_E_PKINIT_NAME_MISMATCH
# define SEC_E_PKINIT_NAME_MISMATCH ((HRESULT)0x8009033DL)
#endif
#ifndef SEC_E_SMARTCARD_LOGON_REQUIRED
# define SEC_E_SMARTCARD_LOGON_REQUIRED ((HRESULT)0x8009033EL)
#endif
#ifndef SEC_E_SHUTDOWN_IN_PROGRESS
# define SEC_E_SHUTDOWN_IN_PROGRESS ((HRESULT)0x8009033FL)
#endif
#ifndef SEC_E_KDC_INVALID_REQUEST
# define SEC_E_KDC_INVALID_REQUEST ((HRESULT)0x80090340L)
#endif
#ifndef SEC_E_KDC_UNABLE_TO_REFER
# define SEC_E_KDC_UNABLE_TO_REFER ((HRESULT)0x80090341L)
#endif
#ifndef SEC_E_KDC_UNKNOWN_ETYPE
# define SEC_E_KDC_UNKNOWN_ETYPE ((HRESULT)0x80090342L)
#endif
#ifndef SEC_E_UNSUPPORTED_PREAUTH
# define SEC_E_UNSUPPORTED_PREAUTH ((HRESULT)0x80090343L)
#endif
#ifndef SEC_E_DELEGATION_REQUIRED
# define SEC_E_DELEGATION_REQUIRED ((HRESULT)0x80090345L)
#endif
#ifndef SEC_E_BAD_BINDINGS
# define SEC_E_BAD_BINDINGS ((HRESULT)0x80090346L)
#endif
#ifndef SEC_E_MULTIPLE_ACCOUNTS
# define SEC_E_MULTIPLE_ACCOUNTS ((HRESULT)0x80090347L)
#endif
#ifndef SEC_E_NO_KERB_KEY
# define SEC_E_NO_KERB_KEY ((HRESULT)0x80090348L)
#endif
#ifndef SEC_E_CERT_WRONG_USAGE
# define SEC_E_CERT_WRONG_USAGE ((HRESULT)0x80090349L)
#endif
#ifndef SEC_E_DOWNGRADE_DETECTED
# define SEC_E_DOWNGRADE_DETECTED ((HRESULT)0x80090350L)
#endif
#ifndef SEC_E_SMARTCARD_CERT_REVOKED
# define SEC_E_SMARTCARD_CERT_REVOKED ((HRESULT)0x80090351L)
#endif
#ifndef SEC_E_ISSUING_CA_UNTRUSTED
# define SEC_E_ISSUING_CA_UNTRUSTED ((HRESULT)0x80090352L)
#endif
#ifndef SEC_E_REVOCATION_OFFLINE_C
# define SEC_E_REVOCATION_OFFLINE_C ((HRESULT)0x80090353L)
#endif
#ifndef SEC_E_PKINIT_CLIENT_FAILURE
# define SEC_E_PKINIT_CLIENT_FAILURE ((HRESULT)0x80090354L)
#endif
#ifndef SEC_E_SMARTCARD_CERT_EXPIRED
# define SEC_E_SMARTCARD_CERT_EXPIRED ((HRESULT)0x80090355L)
#endif
#ifndef SEC_E_NO_S4U_PROT_SUPPORT
# define SEC_E_NO_S4U_PROT_SUPPORT ((HRESULT)0x80090356L)
#endif
#ifndef SEC_E_CROSSREALM_DELEGATION_FAILURE
# define SEC_E_CROSSREALM_DELEGATION_FAILURE ((HRESULT)0x80090357L)
#endif
#ifndef SEC_E_REVOCATION_OFFLINE_KDC
# define SEC_E_REVOCATION_OFFLINE_KDC ((HRESULT)0x80090358L)
#endif
#ifndef SEC_E_ISSUING_CA_UNTRUSTED_KDC
# define SEC_E_ISSUING_CA_UNTRUSTED_KDC ((HRESULT)0x80090359L)
#endif
#ifndef SEC_E_KDC_CERT_EXPIRED
# define SEC_E_KDC_CERT_EXPIRED ((HRESULT)0x8009035AL)
#endif
#ifndef SEC_E_KDC_CERT_REVOKED
# define SEC_E_KDC_CERT_REVOKED ((HRESULT)0x8009035BL)
#endif
#ifndef SEC_E_INVALID_PARAMETER
# define SEC_E_INVALID_PARAMETER ((HRESULT)0x8009035DL)
#endif
#ifndef SEC_E_DELEGATION_POLICY
# define SEC_E_DELEGATION_POLICY ((HRESULT)0x8009035EL)
#endif
#ifndef SEC_E_POLICY_NLTM_ONLY
# define SEC_E_POLICY_NLTM_ONLY ((HRESULT)0x8009035FL)
#endif
#ifndef SEC_I_CONTINUE_NEEDED
# define SEC_I_CONTINUE_NEEDED ((HRESULT)0x00090312L)
#endif
#ifndef SEC_I_COMPLETE_NEEDED
# define SEC_I_COMPLETE_NEEDED ((HRESULT)0x00090313L)
#endif
#ifndef SEC_I_COMPLETE_AND_CONTINUE
# define SEC_I_COMPLETE_AND_CONTINUE ((HRESULT)0x00090314L)
#endif
#ifndef SEC_I_LOCAL_LOGON
# define SEC_I_LOCAL_LOGON ((HRESULT)0x00090315L)
#endif
#ifndef SEC_I_CONTEXT_EXPIRED
# define SEC_I_CONTEXT_EXPIRED ((HRESULT)0x00090317L)
#endif
#ifndef SEC_I_INCOMPLETE_CREDENTIALS
# define SEC_I_INCOMPLETE_CREDENTIALS ((HRESULT)0x00090320L)
#endif
#ifndef SEC_I_RENEGOTIATE
# define SEC_I_RENEGOTIATE ((HRESULT)0x00090321L)
#endif
#ifndef SEC_I_NO_LSA_CONTEXT
# define SEC_I_NO_LSA_CONTEXT ((HRESULT)0x00090323L)
#endif
#ifndef SEC_I_SIGNATURE_NEEDED
# define SEC_I_SIGNATURE_NEEDED ((HRESULT)0x0009035CL)
#endif
#ifndef CRYPT_E_REVOKED
# define CRYPT_E_REVOKED ((HRESULT)0x80092010L)
#endif
#ifdef UNICODE
# define SECFLAG_WINNT_AUTH_IDENTITY \
(unsigned long)SEC_WINNT_AUTH_IDENTITY_UNICODE
#else
# define SECFLAG_WINNT_AUTH_IDENTITY \
(unsigned long)SEC_WINNT_AUTH_IDENTITY_ANSI
#endif
/*
* Definitions required from ntsecapi.h are directly provided below this point
* to avoid including ntsecapi.h due to a conflict with OpenSSL's safestack.h
*/
#define KERB_WRAP_NO_ENCRYPT 0x80000001
#endif /* USE_WINDOWS_SSPI */
#endif /* HEADER_CURL_SSPI_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http.h | #ifndef HEADER_CURL_HTTP_H
#define HEADER_CURL_HTTP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
typedef enum {
HTTPREQ_GET,
HTTPREQ_POST,
HTTPREQ_POST_FORM, /* we make a difference internally */
HTTPREQ_POST_MIME, /* we make a difference internally */
HTTPREQ_PUT,
HTTPREQ_HEAD
} Curl_HttpReq;
#ifndef CURL_DISABLE_HTTP
#ifdef USE_NGHTTP2
#include <nghttp2/nghttp2.h>
#endif
extern const struct Curl_handler Curl_handler_http;
#ifdef USE_SSL
extern const struct Curl_handler Curl_handler_https;
#endif
/* Header specific functions */
bool Curl_compareheader(const char *headerline, /* line to check */
const char *header, /* header keyword _with_ colon */
const char *content); /* content string to find */
char *Curl_copy_header_value(const char *header);
char *Curl_checkProxyheaders(struct Curl_easy *data,
const struct connectdata *conn,
const char *thisheader);
#ifndef USE_HYPER
CURLcode Curl_buffer_send(struct dynbuf *in,
struct Curl_easy *data,
curl_off_t *bytes_written,
curl_off_t included_body_bytes,
int socketindex);
#else
#define Curl_buffer_send(a,b,c,d,e) CURLE_OK
#endif
CURLcode Curl_add_timecondition(struct Curl_easy *data,
#ifndef USE_HYPER
struct dynbuf *req
#else
void *headers
#endif
);
CURLcode Curl_add_custom_headers(struct Curl_easy *data,
bool is_connect,
#ifndef USE_HYPER
struct dynbuf *req
#else
void *headers
#endif
);
CURLcode Curl_http_compile_trailers(struct curl_slist *trailers,
struct dynbuf *buf,
struct Curl_easy *handle);
void Curl_http_method(struct Curl_easy *data, struct connectdata *conn,
const char **method, Curl_HttpReq *);
CURLcode Curl_http_useragent(struct Curl_easy *data);
CURLcode Curl_http_host(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_http_target(struct Curl_easy *data, struct connectdata *conn,
struct dynbuf *req);
CURLcode Curl_http_statusline(struct Curl_easy *data,
struct connectdata *conn);
CURLcode Curl_http_header(struct Curl_easy *data, struct connectdata *conn,
char *headp);
CURLcode Curl_transferencode(struct Curl_easy *data);
CURLcode Curl_http_body(struct Curl_easy *data, struct connectdata *conn,
Curl_HttpReq httpreq,
const char **teep);
CURLcode Curl_http_bodysend(struct Curl_easy *data, struct connectdata *conn,
struct dynbuf *r, Curl_HttpReq httpreq);
bool Curl_use_http_1_1plus(const struct Curl_easy *data,
const struct connectdata *conn);
#ifndef CURL_DISABLE_COOKIES
CURLcode Curl_http_cookies(struct Curl_easy *data,
struct connectdata *conn,
struct dynbuf *r);
#else
#define Curl_http_cookies(a,b,c) CURLE_OK
#endif
CURLcode Curl_http_resume(struct Curl_easy *data,
struct connectdata *conn,
Curl_HttpReq httpreq);
CURLcode Curl_http_range(struct Curl_easy *data,
Curl_HttpReq httpreq);
CURLcode Curl_http_firstwrite(struct Curl_easy *data,
struct connectdata *conn,
bool *done);
/* protocol-specific functions set up to be called by the main engine */
CURLcode Curl_http(struct Curl_easy *data, bool *done);
CURLcode Curl_http_done(struct Curl_easy *data, CURLcode, bool premature);
CURLcode Curl_http_connect(struct Curl_easy *data, bool *done);
/* These functions are in http.c */
CURLcode Curl_http_input_auth(struct Curl_easy *data, bool proxy,
const char *auth);
CURLcode Curl_http_auth_act(struct Curl_easy *data);
/* If only the PICKNONE bit is set, there has been a round-trip and we
selected to use no auth at all. Ie, we actively select no auth, as opposed
to not having one selected. The other CURLAUTH_* defines are present in the
public curl/curl.h header. */
#define CURLAUTH_PICKNONE (1<<30) /* don't use auth */
/* MAX_INITIAL_POST_SIZE indicates the number of bytes that will make the POST
data get included in the initial data chunk sent to the server. If the
data is larger than this, it will automatically get split up in multiple
system calls.
This value used to be fairly big (100K), but we must take into account that
if the server rejects the POST due for authentication reasons, this data
will always be unconditionally sent and thus it may not be larger than can
always be afforded to send twice.
It must not be greater than 64K to work on VMS.
*/
#ifndef MAX_INITIAL_POST_SIZE
#define MAX_INITIAL_POST_SIZE (64*1024)
#endif
/* EXPECT_100_THRESHOLD is the request body size limit for when libcurl will
* automatically add an "Expect: 100-continue" header in HTTP requests. When
* the size is unknown, it will always add it.
*
*/
#ifndef EXPECT_100_THRESHOLD
#define EXPECT_100_THRESHOLD (1024*1024)
#endif
#endif /* CURL_DISABLE_HTTP */
#ifdef USE_NGHTTP3
struct h3out; /* see ngtcp2 */
#endif
/****************************************************************************
* HTTP unique setup
***************************************************************************/
struct HTTP {
curl_mimepart *sendit;
curl_off_t postsize; /* off_t to handle large file sizes */
const char *postdata;
const char *p_pragma; /* Pragma: string */
/* For FORM posting */
curl_mimepart form;
struct back {
curl_read_callback fread_func; /* backup storage for fread pointer */
void *fread_in; /* backup storage for fread_in pointer */
const char *postdata;
curl_off_t postsize;
} backup;
enum {
HTTPSEND_NADA, /* init */
HTTPSEND_REQUEST, /* sending a request */
HTTPSEND_BODY /* sending body */
} sending;
#ifndef CURL_DISABLE_HTTP
struct dynbuf send_buffer; /* used if the request couldn't be sent in one
chunk, points to an allocated send_buffer
struct */
#endif
#ifdef USE_NGHTTP2
/*********** for HTTP/2 we store stream-local data here *************/
int32_t stream_id; /* stream we are interested in */
bool bodystarted;
/* We store non-final and final response headers here, per-stream */
struct dynbuf header_recvbuf;
size_t nread_header_recvbuf; /* number of bytes in header_recvbuf fed into
upper layer */
struct dynbuf trailer_recvbuf;
int status_code; /* HTTP status code */
const uint8_t *pausedata; /* pointer to data received in on_data_chunk */
size_t pauselen; /* the number of bytes left in data */
bool close_handled; /* TRUE if stream closure is handled by libcurl */
char **push_headers; /* allocated array */
size_t push_headers_used; /* number of entries filled in */
size_t push_headers_alloc; /* number of entries allocated */
uint32_t error; /* HTTP/2 stream error code */
#endif
#if defined(USE_NGHTTP2) || defined(USE_NGHTTP3)
bool closed; /* TRUE on HTTP2 stream close */
char *mem; /* points to a buffer in memory to store received data */
size_t len; /* size of the buffer 'mem' points to */
size_t memlen; /* size of data copied to mem */
#endif
#if defined(USE_NGHTTP2) || defined(ENABLE_QUIC)
/* fields used by both HTTP/2 and HTTP/3 */
const uint8_t *upload_mem; /* points to a buffer to read from */
size_t upload_len; /* size of the buffer 'upload_mem' points to */
curl_off_t upload_left; /* number of bytes left to upload */
#endif
#ifdef ENABLE_QUIC
/*********** for HTTP/3 we store stream-local data here *************/
int64_t stream3_id; /* stream we are interested in */
bool firstheader; /* FALSE until headers arrive */
bool firstbody; /* FALSE until body arrives */
bool h3req; /* FALSE until request is issued */
bool upload_done;
#endif
#ifdef USE_NGHTTP3
size_t unacked_window;
struct h3out *h3out; /* per-stream buffers for upload */
struct dynbuf overflow; /* excess data received during a single Curl_read */
#endif
};
#ifdef USE_NGHTTP2
/* h2 settings for this connection */
struct h2settings {
uint32_t max_concurrent_streams;
bool enable_push;
};
#endif
struct http_conn {
#ifdef USE_NGHTTP2
#define H2_BINSETTINGS_LEN 80
uint8_t binsettings[H2_BINSETTINGS_LEN];
size_t binlen; /* length of the binsettings data */
/* We associate the connnectdata struct with the connection, but we need to
make sure we can identify the current "driving" transfer. This is a
work-around for the lack of nghttp2_session_set_user_data() in older
nghttp2 versions that we want to support. (Added in 1.31.0) */
struct Curl_easy *trnsfr;
nghttp2_session *h2;
Curl_send *send_underlying; /* underlying send Curl_send callback */
Curl_recv *recv_underlying; /* underlying recv Curl_recv callback */
char *inbuf; /* buffer to receive data from underlying socket */
size_t inbuflen; /* number of bytes filled in inbuf */
size_t nread_inbuf; /* number of bytes read from in inbuf */
/* We need separate buffer for transmission and reception because we
may call nghttp2_session_send() after the
nghttp2_session_mem_recv() but mem buffer is still not full. In
this case, we wrongly sends the content of mem buffer if we share
them for both cases. */
int32_t pause_stream_id; /* stream ID which paused
nghttp2_session_mem_recv */
size_t drain_total; /* sum of all stream's UrlState.drain */
/* this is a hash of all individual streams (Curl_easy structs) */
struct h2settings settings;
/* list of settings that will be sent */
nghttp2_settings_entry local_settings[3];
size_t local_settings_num;
#else
int unused; /* prevent a compiler warning */
#endif
};
CURLcode Curl_http_size(struct Curl_easy *data);
CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
struct connectdata *conn,
ssize_t *nread,
bool *stop_reading);
/**
* Curl_http_output_auth() setups the authentication headers for the
* host/proxy and the correct authentication
* method. data->state.authdone is set to TRUE when authentication is
* done.
*
* @param data all information about the current transfer
* @param conn all information about the current connection
* @param request pointer to the request keyword
* @param httpreq is the request type
* @param path pointer to the requested path
* @param proxytunnel boolean if this is the request setting up a "proxy
* tunnel"
*
* @returns CURLcode
*/
CURLcode
Curl_http_output_auth(struct Curl_easy *data,
struct connectdata *conn,
const char *request,
Curl_HttpReq httpreq,
const char *path,
bool proxytunnel); /* TRUE if this is the request setting
up the proxy tunnel */
#endif /* HEADER_CURL_HTTP_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/easygetopt.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ | |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* ___|___/|_| ______|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "strcase.h"
#include "easyoptions.h"
#ifndef CURL_DISABLE_GETOPTIONS
/* Lookups easy options at runtime */
static struct curl_easyoption *lookup(const char *name, CURLoption id)
{
DEBUGASSERT(name || id);
DEBUGASSERT(!Curl_easyopts_check());
if(name || id) {
struct curl_easyoption *o = &Curl_easyopts[0];
do {
if(name) {
if(strcasecompare(o->name, name))
return o;
}
else {
if((o->id == id) && !(o->flags & CURLOT_FLAG_ALIAS))
/* don't match alias options */
return o;
}
o++;
} while(o->name);
}
return NULL;
}
const struct curl_easyoption *curl_easy_option_by_name(const char *name)
{
/* when name is used, the id argument is ignored */
return lookup(name, CURLOPT_LASTENTRY);
}
const struct curl_easyoption *curl_easy_option_by_id(CURLoption id)
{
return lookup(NULL, id);
}
/* Iterates over available options */
const struct curl_easyoption *
curl_easy_option_next(const struct curl_easyoption *prev)
{
if(prev && prev->name) {
prev++;
if(prev->name)
return prev;
}
else if(!prev)
return &Curl_easyopts[0];
return NULL;
}
#else
const struct curl_easyoption *curl_easy_option_by_name(const char *name)
{
(void)name;
return NULL;
}
const struct curl_easyoption *curl_easy_option_by_id (CURLoption id)
{
(void)id;
return NULL;
}
const struct curl_easyoption *
curl_easy_option_next(const struct curl_easyoption *prev)
{
(void)prev;
return NULL;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/setopt.h | #ifndef HEADER_CURL_SETOPT_H
#define HEADER_CURL_SETOPT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
CURLcode Curl_setstropt(char **charp, const char *s);
CURLcode Curl_setblobopt(struct curl_blob **blobp,
const struct curl_blob *blob);
CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list arg);
#endif /* HEADER_CURL_SETOPT_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hash.h | #ifndef HEADER_CURL_HASH_H
#define HEADER_CURL_HASH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <stddef.h>
#include "llist.h"
/* Hash function prototype */
typedef size_t (*hash_function) (void *key,
size_t key_length,
size_t slots_num);
/*
Comparator function prototype. Compares two keys.
*/
typedef size_t (*comp_function) (void *key1,
size_t key1_len,
void *key2,
size_t key2_len);
typedef void (*Curl_hash_dtor)(void *);
struct Curl_hash {
struct Curl_llist *table;
/* Hash function to be used for this hash table */
hash_function hash_func;
/* Comparator function to compare keys */
comp_function comp_func;
Curl_hash_dtor dtor;
int slots;
size_t size;
};
struct Curl_hash_element {
struct Curl_llist_element list;
void *ptr;
size_t key_len;
char key[1]; /* allocated memory following the struct */
};
struct Curl_hash_iterator {
struct Curl_hash *hash;
int slot_index;
struct Curl_llist_element *current_element;
};
int Curl_hash_init(struct Curl_hash *h,
int slots,
hash_function hfunc,
comp_function comparator,
Curl_hash_dtor dtor);
void *Curl_hash_add(struct Curl_hash *h, void *key, size_t key_len, void *p);
int Curl_hash_delete(struct Curl_hash *h, void *key, size_t key_len);
void *Curl_hash_pick(struct Curl_hash *, void *key, size_t key_len);
void Curl_hash_apply(struct Curl_hash *h, void *user,
void (*cb)(void *user, void *ptr));
#define Curl_hash_count(h) ((h)->size)
void Curl_hash_destroy(struct Curl_hash *h);
void Curl_hash_clean(struct Curl_hash *h);
void Curl_hash_clean_with_criterium(struct Curl_hash *h, void *user,
int (*comp)(void *, void *));
size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num);
size_t Curl_str_key_compare(void *k1, size_t key1_len, void *k2,
size_t key2_len);
void Curl_hash_start_iterate(struct Curl_hash *hash,
struct Curl_hash_iterator *iter);
struct Curl_hash_element *
Curl_hash_next_element(struct Curl_hash_iterator *iter);
void Curl_hash_print(struct Curl_hash *h,
void (*func)(void *));
#endif /* HEADER_CURL_HASH_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_get_line.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_COOKIES) || !defined(CURL_DISABLE_ALTSVC) || \
!defined(CURL_DISABLE_HSTS)
#include "curl_get_line.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* get_line() makes sure to only return complete whole lines that fit in 'len'
* bytes and end with a newline.
*/
char *Curl_get_line(char *buf, int len, FILE *input)
{
bool partial = FALSE;
while(1) {
char *b = fgets(buf, len, input);
if(b) {
size_t rlen = strlen(b);
if(rlen && (b[rlen-1] == '\n')) {
if(partial) {
partial = FALSE;
continue;
}
return b;
}
/* read a partial, discard the next piece that ends with newline */
partial = TRUE;
}
else
break;
}
return NULL;
}
#endif /* if not disabled */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/optiontable.pl | #!/usr/bin/env perl
print <<HEAD
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* This source code is generated by optiontable.pl - DO NOT EDIT BY HAND */
#include "curl_setup.h"
#include "easyoptions.h"
/* all easy setopt options listed in alphabetical order */
struct curl_easyoption Curl_easyopts[] = {
HEAD
;
my $lastnum=0;
while(<STDIN>) {
if(/^ *CURLOPT\(([^,]*), ([^,]*), (\d+)\)/) {
my($opt, $type, $num)=($1,$2,$3);
my $name;
my $ext = $type;
if($opt =~ /OBSOLETE/) {
# skip obsolete options
next;
}
if($opt =~ /^CURLOPT_(.*)/) {
$name=$1;
}
$ext =~ s/CURLOPTTYPE_//;
$ext =~ s/CBPOINT/CBPTR/;
$ext =~ s/POINT\z//;
$type = "CURLOT_$ext";
$opt{$name} = $opt;
$type{$name} = $type;
push @names, $name;
if($num < $lastnum) {
print STDERR "ERROR: $opt has bad number\n";
exit 2;
}
else {
$lastnum = $num;
}
}
# alias for an older option
# old = new
if(/^#define (CURLOPT_[^ ]*) *(CURLOPT_\S*)/) {
my ($o, $n)=($1, $2);
# skip obsolete ones
if($n !~ /OBSOLETE/) {
$o =~ s/^CURLOPT_//;
$n =~ s/^CURLOPT_//;
$alias{$o} = $n;
push @names, $o,
}
}
}
for my $name (sort @names) {
my $oname = $name;
my $a = $alias{$name};
my $flag = "0";
if($a) {
$name = $alias{$name};
$flag = "CURLOT_FLAG_ALIAS";
}
$o = sprintf(" {\"%s\", %s, %s, %s},\n",
$oname, $opt{$name}, $type{$name}, $flag);
if(length($o) < 80) {
print $o;
}
else {
printf(" {\"%s\", %s,\n %s, %s},\n",
$oname, $opt{$name}, $type{$name}, $flag);
}
}
print <<FOOT
{NULL, CURLOPT_LASTENTRY, 0, 0} /* end of table */
};
#ifdef DEBUGBUILD
/*
* Curl_easyopts_check() is a debug-only function that returns non-zero
* if this source file is not in sync with the options listed in curl/curl.h
*/
int Curl_easyopts_check(void)
{
return ((CURLOPT_LASTENTRY%10000) != ($lastnum + 1));
}
#endif
FOOT
;
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/nwlib.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef NETWARE /* Novell NetWare */
#ifdef __NOVELL_LIBC__
/* For native LibC-based NLM we need to register as a real lib. */
#include <library.h>
#include <netware.h>
#include <screen.h>
#include <nks/thread.h>
#include <nks/synch.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
struct libthreaddata {
int _errno;
void *twentybytes;
};
struct libdata {
int x;
int y;
int z;
void *tenbytes;
NXKey_t perthreadkey; /* if -1, no key obtained... */
NXMutex_t *lock;
};
int gLibId = -1;
void *gLibHandle = (void *) NULL;
rtag_t gAllocTag = (rtag_t) NULL;
NXMutex_t *gLibLock = (NXMutex_t *) NULL;
/* internal library function prototypes... */
int DisposeLibraryData(void *);
void DisposeThreadData(void *);
int GetOrSetUpData(int id, struct libdata **data,
struct libthreaddata **threaddata);
int _NonAppStart(void *NLMHandle,
void *errorScreen,
const char *cmdLine,
const char *loadDirPath,
size_t uninitializedDataLength,
void *NLMFileHandle,
int (*readRoutineP)(int conn,
void *fileHandle, size_t offset,
size_t nbytes,
size_t *bytesRead,
void *buffer),
size_t customDataOffset,
size_t customDataSize,
int messageCount,
const char **messages)
{
NX_LOCK_INFO_ALLOC(liblock, "Per-Application Data Lock", 0);
#ifndef __GNUC__
#pragma unused(cmdLine)
#pragma unused(loadDirPath)
#pragma unused(uninitializedDataLength)
#pragma unused(NLMFileHandle)
#pragma unused(readRoutineP)
#pragma unused(customDataOffset)
#pragma unused(customDataSize)
#pragma unused(messageCount)
#pragma unused(messages)
#endif
/*
* Here we process our command line, post errors (to the error screen),
* perform initializations and anything else we need to do before being able
* to accept calls into us. If we succeed, we return non-zero and the NetWare
* Loader will leave us up, otherwise we fail to load and get dumped.
*/
gAllocTag = AllocateResourceTag(NLMHandle,
"<library-name> memory allocations",
AllocSignature);
if(!gAllocTag) {
OutputToScreen(errorScreen, "Unable to allocate resource tag for "
"library memory allocations.\n");
return -1;
}
gLibId = register_library(DisposeLibraryData);
if(gLibId < -1) {
OutputToScreen(errorScreen, "Unable to register library with kernel.\n");
return -1;
}
gLibHandle = NLMHandle;
gLibLock = NXMutexAlloc(0, 0, &liblock);
if(!gLibLock) {
OutputToScreen(errorScreen, "Unable to allocate library data lock.\n");
return -1;
}
return 0;
}
/*
* Here we clean up any resources we allocated. Resource tags is a big part
* of what we created, but NetWare doesn't ask us to free those.
*/
void _NonAppStop(void)
{
(void) unregister_library(gLibId);
NXMutexFree(gLibLock);
}
/*
* This function cannot be the first in the file for if the file is linked
* first, then the check-unload function's offset will be nlmname.nlm+0
* which is how to tell that there isn't one. When the check function is
* first in the linked objects, it is ambiguous. For this reason, we will
* put it inside this file after the stop function.
*
* Here we check to see if it's alright to ourselves to be unloaded. If not,
* we return a non-zero value. Right now, there isn't any reason not to allow
* it.
*/
int _NonAppCheckUnload(void)
{
return 0;
}
int GetOrSetUpData(int id, struct libdata **appData,
struct libthreaddata **threadData)
{
int err;
struct libdata *app_data;
struct libthreaddata *thread_data;
NXKey_t key;
NX_LOCK_INFO_ALLOC(liblock, "Application Data Lock", 0);
err = 0;
thread_data = (struct libthreaddata_t *) NULL;
/*
* Attempt to get our data for the application calling us. This is where we
* store whatever application-specific information we need to carry in
* support of calling applications.
*/
app_data = (struct libdata *) get_app_data(id);
if(!app_data) {
/*
* This application hasn't called us before; set up application AND
* per-thread data. Of course, just in case a thread from this same
* application is calling us simultaneously, we better lock our application
* data-creation mutex. We also need to recheck for data after we acquire
* the lock because WE might be that other thread that was too late to
* create the data and the first thread in will have created it.
*/
NXLock(gLibLock);
app_data = (struct libdata *) get_app_data(id);
if(!app_data) {
app_data = calloc(1, sizeof(struct libdata));
if(app_data) {
app_data->tenbytes = malloc(10);
app_data->lock = NXMutexAlloc(0, 0, &liblock);
if(!app_data->tenbytes || !app_data->lock) {
if(app_data->lock)
NXMutexFree(app_data->lock);
free(app_data->tenbytes);
free(app_data);
app_data = (libdata_t *) NULL;
err = ENOMEM;
}
if(app_data) {
/*
* Here we burn in the application data that we were trying to get
* by calling get_app_data(). Next time we call the first function,
* we'll get this data we're just now setting. We also go on here to
* establish the per-thread data for the calling thread, something
* we'll have to do on each application thread the first time
* it calls us.
*/
err = set_app_data(gLibId, app_data);
if(err) {
if(app_data->lock)
NXMutexFree(app_data->lock);
free(app_data->tenbytes);
free(app_data);
app_data = (libdata_t *) NULL;
err = ENOMEM;
}
else {
/* create key for thread-specific data... */
err = NXKeyCreate(DisposeThreadData, (void *) NULL, &key);
if(err) /* (no more keys left?) */
key = -1;
app_data->perthreadkey = key;
}
}
}
}
NXUnlock(gLibLock);
}
if(app_data) {
key = app_data->perthreadkey;
if(key != -1 /* couldn't create a key? no thread data */
&& !(err = NXKeyGetValue(key, (void **) &thread_data))
&& !thread_data) {
/*
* Allocate the per-thread data for the calling thread. Regardless of
* whether there was already application data or not, this may be the
* first call by a new thread. The fact that we allocation 20 bytes on
* a pointer is not very important, this just helps to demonstrate that
* we can have arbitrarily complex per-thread data.
*/
thread_data = malloc(sizeof(struct libthreaddata));
if(thread_data) {
thread_data->_errno = 0;
thread_data->twentybytes = malloc(20);
if(!thread_data->twentybytes) {
free(thread_data);
thread_data = (struct libthreaddata *) NULL;
err = ENOMEM;
}
err = NXKeySetValue(key, thread_data);
if(err) {
free(thread_data->twentybytes);
free(thread_data);
thread_data = (struct libthreaddata *) NULL;
}
}
}
}
if(appData)
*appData = app_data;
if(threadData)
*threadData = thread_data;
return err;
}
int DisposeLibraryData(void *data)
{
if(data) {
void *tenbytes = ((libdata_t *) data)->tenbytes;
free(tenbytes);
free(data);
}
return 0;
}
void DisposeThreadData(void *data)
{
if(data) {
void *twentybytes = ((struct libthreaddata *) data)->twentybytes;
free(twentybytes);
free(data);
}
}
#else /* __NOVELL_LIBC__ */
/* For native CLib-based NLM seems we can do a bit more simple. */
#include <nwthread.h>
int main(void)
{
/* initialize any globals here... */
/* do this if any global initializing was done
SynchronizeStart();
*/
ExitThread(TSR_THREAD, 0);
return 0;
}
#endif /* __NOVELL_LIBC__ */
#else /* NETWARE */
#ifdef __POCC__
# pragma warn(disable:2024) /* Disable warning #2024: Empty input file */
#endif
#endif /* NETWARE */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/telnet.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_TELNET
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "telnet.h"
#include "connect.h"
#include "progress.h"
#include "system_win32.h"
#include "arpa_telnet.h"
#include "select.h"
#include "strcase.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define SUBBUFSIZE 512
#define CURL_SB_CLEAR(x) x->subpointer = x->subbuffer
#define CURL_SB_TERM(x) \
do { \
x->subend = x->subpointer; \
CURL_SB_CLEAR(x); \
} while(0)
#define CURL_SB_ACCUM(x,c) \
do { \
if(x->subpointer < (x->subbuffer + sizeof(x->subbuffer))) \
*x->subpointer++ = (c); \
} while(0)
#define CURL_SB_GET(x) ((*x->subpointer++)&0xff)
#define CURL_SB_LEN(x) (x->subend - x->subpointer)
/* For posterity:
#define CURL_SB_PEEK(x) ((*x->subpointer)&0xff)
#define CURL_SB_EOF(x) (x->subpointer >= x->subend) */
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define printoption(a,b,c,d) Curl_nop_stmt
#endif
static
CURLcode telrcv(struct Curl_easy *data,
const unsigned char *inbuf, /* Data received from socket */
ssize_t count); /* Number of bytes received */
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void printoption(struct Curl_easy *data,
const char *direction,
int cmd, int option);
#endif
static void negotiate(struct Curl_easy *data);
static void send_negotiation(struct Curl_easy *data, int cmd, int option);
static void set_local_option(struct Curl_easy *data,
int option, int newstate);
static void set_remote_option(struct Curl_easy *data,
int option, int newstate);
static void printsub(struct Curl_easy *data,
int direction, unsigned char *pointer,
size_t length);
static void suboption(struct Curl_easy *data);
static void sendsuboption(struct Curl_easy *data, int option);
static CURLcode telnet_do(struct Curl_easy *data, bool *done);
static CURLcode telnet_done(struct Curl_easy *data,
CURLcode, bool premature);
static CURLcode send_telnet_data(struct Curl_easy *data,
char *buffer, ssize_t nread);
/* For negotiation compliant to RFC 1143 */
#define CURL_NO 0
#define CURL_YES 1
#define CURL_WANTYES 2
#define CURL_WANTNO 3
#define CURL_EMPTY 0
#define CURL_OPPOSITE 1
/*
* Telnet receiver states for fsm
*/
typedef enum
{
CURL_TS_DATA = 0,
CURL_TS_IAC,
CURL_TS_WILL,
CURL_TS_WONT,
CURL_TS_DO,
CURL_TS_DONT,
CURL_TS_CR,
CURL_TS_SB, /* sub-option collection */
CURL_TS_SE /* looking for sub-option end */
} TelnetReceive;
struct TELNET {
int please_negotiate;
int already_negotiated;
int us[256];
int usq[256];
int us_preferred[256];
int him[256];
int himq[256];
int him_preferred[256];
int subnegotiation[256];
char subopt_ttype[32]; /* Set with suboption TTYPE */
char subopt_xdisploc[128]; /* Set with suboption XDISPLOC */
unsigned short subopt_wsx; /* Set with suboption NAWS */
unsigned short subopt_wsy; /* Set with suboption NAWS */
TelnetReceive telrcv_state;
struct curl_slist *telnet_vars; /* Environment variables */
/* suboptions */
unsigned char subbuffer[SUBBUFSIZE];
unsigned char *subpointer, *subend; /* buffer for sub-options */
};
/*
* TELNET protocol handler.
*/
const struct Curl_handler Curl_handler_telnet = {
"TELNET", /* scheme */
ZERO_NULL, /* setup_connection */
telnet_do, /* do_it */
telnet_done, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_TELNET, /* defport */
CURLPROTO_TELNET, /* protocol */
CURLPROTO_TELNET, /* family */
PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */
};
static
CURLcode init_telnet(struct Curl_easy *data)
{
struct TELNET *tn;
tn = calloc(1, sizeof(struct TELNET));
if(!tn)
return CURLE_OUT_OF_MEMORY;
data->req.p.telnet = tn; /* make us known */
tn->telrcv_state = CURL_TS_DATA;
/* Init suboptions */
CURL_SB_CLEAR(tn);
/* Set the options we want by default */
tn->us_preferred[CURL_TELOPT_SGA] = CURL_YES;
tn->him_preferred[CURL_TELOPT_SGA] = CURL_YES;
/* To be compliant with previous releases of libcurl
we enable this option by default. This behavior
can be changed thanks to the "BINARY" option in
CURLOPT_TELNETOPTIONS
*/
tn->us_preferred[CURL_TELOPT_BINARY] = CURL_YES;
tn->him_preferred[CURL_TELOPT_BINARY] = CURL_YES;
/* We must allow the server to echo what we sent
but it is not necessary to request the server
to do so (it might forces the server to close
the connection). Hence, we ignore ECHO in the
negotiate function
*/
tn->him_preferred[CURL_TELOPT_ECHO] = CURL_YES;
/* Set the subnegotiation fields to send information
just after negotiation passed (do/will)
Default values are (0,0) initialized by calloc.
According to the RFC1013 it is valid:
A value equal to zero is acceptable for the width (or height),
and means that no character width (or height) is being sent.
In this case, the width (or height) that will be assumed by the
Telnet server is operating system specific (it will probably be
based upon the terminal type information that may have been sent
using the TERMINAL TYPE Telnet option). */
tn->subnegotiation[CURL_TELOPT_NAWS] = CURL_YES;
return CURLE_OK;
}
static void negotiate(struct Curl_easy *data)
{
int i;
struct TELNET *tn = data->req.p.telnet;
for(i = 0; i < CURL_NTELOPTS; i++) {
if(i == CURL_TELOPT_ECHO)
continue;
if(tn->us_preferred[i] == CURL_YES)
set_local_option(data, i, CURL_YES);
if(tn->him_preferred[i] == CURL_YES)
set_remote_option(data, i, CURL_YES);
}
}
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void printoption(struct Curl_easy *data,
const char *direction, int cmd, int option)
{
if(data->set.verbose) {
if(cmd == CURL_IAC) {
if(CURL_TELCMD_OK(option))
infof(data, "%s IAC %s", direction, CURL_TELCMD(option));
else
infof(data, "%s IAC %d", direction, option);
}
else {
const char *fmt = (cmd == CURL_WILL) ? "WILL" :
(cmd == CURL_WONT) ? "WONT" :
(cmd == CURL_DO) ? "DO" :
(cmd == CURL_DONT) ? "DONT" : 0;
if(fmt) {
const char *opt;
if(CURL_TELOPT_OK(option))
opt = CURL_TELOPT(option);
else if(option == CURL_TELOPT_EXOPL)
opt = "EXOPL";
else
opt = NULL;
if(opt)
infof(data, "%s %s %s", direction, fmt, opt);
else
infof(data, "%s %s %d", direction, fmt, option);
}
else
infof(data, "%s %d %d", direction, cmd, option);
}
}
}
#endif
static void send_negotiation(struct Curl_easy *data, int cmd, int option)
{
unsigned char buf[3];
ssize_t bytes_written;
struct connectdata *conn = data->conn;
buf[0] = CURL_IAC;
buf[1] = (unsigned char)cmd;
buf[2] = (unsigned char)option;
bytes_written = swrite(conn->sock[FIRSTSOCKET], buf, 3);
if(bytes_written < 0) {
int err = SOCKERRNO;
failf(data,"Sending data failed (%d)",err);
}
printoption(data, "SENT", cmd, option);
}
static
void set_remote_option(struct Curl_easy *data, int option, int newstate)
{
struct TELNET *tn = data->req.p.telnet;
if(newstate == CURL_YES) {
switch(tn->him[option]) {
case CURL_NO:
tn->him[option] = CURL_WANTYES;
send_negotiation(data, CURL_DO, option);
break;
case CURL_YES:
/* Already enabled */
break;
case CURL_WANTNO:
switch(tn->himq[option]) {
case CURL_EMPTY:
/* Already negotiating for CURL_YES, queue the request */
tn->himq[option] = CURL_OPPOSITE;
break;
case CURL_OPPOSITE:
/* Error: already queued an enable request */
break;
}
break;
case CURL_WANTYES:
switch(tn->himq[option]) {
case CURL_EMPTY:
/* Error: already negotiating for enable */
break;
case CURL_OPPOSITE:
tn->himq[option] = CURL_EMPTY;
break;
}
break;
}
}
else { /* NO */
switch(tn->him[option]) {
case CURL_NO:
/* Already disabled */
break;
case CURL_YES:
tn->him[option] = CURL_WANTNO;
send_negotiation(data, CURL_DONT, option);
break;
case CURL_WANTNO:
switch(tn->himq[option]) {
case CURL_EMPTY:
/* Already negotiating for NO */
break;
case CURL_OPPOSITE:
tn->himq[option] = CURL_EMPTY;
break;
}
break;
case CURL_WANTYES:
switch(tn->himq[option]) {
case CURL_EMPTY:
tn->himq[option] = CURL_OPPOSITE;
break;
case CURL_OPPOSITE:
break;
}
break;
}
}
}
static
void rec_will(struct Curl_easy *data, int option)
{
struct TELNET *tn = data->req.p.telnet;
switch(tn->him[option]) {
case CURL_NO:
if(tn->him_preferred[option] == CURL_YES) {
tn->him[option] = CURL_YES;
send_negotiation(data, CURL_DO, option);
}
else
send_negotiation(data, CURL_DONT, option);
break;
case CURL_YES:
/* Already enabled */
break;
case CURL_WANTNO:
switch(tn->himq[option]) {
case CURL_EMPTY:
/* Error: DONT answered by WILL */
tn->him[option] = CURL_NO;
break;
case CURL_OPPOSITE:
/* Error: DONT answered by WILL */
tn->him[option] = CURL_YES;
tn->himq[option] = CURL_EMPTY;
break;
}
break;
case CURL_WANTYES:
switch(tn->himq[option]) {
case CURL_EMPTY:
tn->him[option] = CURL_YES;
break;
case CURL_OPPOSITE:
tn->him[option] = CURL_WANTNO;
tn->himq[option] = CURL_EMPTY;
send_negotiation(data, CURL_DONT, option);
break;
}
break;
}
}
static
void rec_wont(struct Curl_easy *data, int option)
{
struct TELNET *tn = data->req.p.telnet;
switch(tn->him[option]) {
case CURL_NO:
/* Already disabled */
break;
case CURL_YES:
tn->him[option] = CURL_NO;
send_negotiation(data, CURL_DONT, option);
break;
case CURL_WANTNO:
switch(tn->himq[option]) {
case CURL_EMPTY:
tn->him[option] = CURL_NO;
break;
case CURL_OPPOSITE:
tn->him[option] = CURL_WANTYES;
tn->himq[option] = CURL_EMPTY;
send_negotiation(data, CURL_DO, option);
break;
}
break;
case CURL_WANTYES:
switch(tn->himq[option]) {
case CURL_EMPTY:
tn->him[option] = CURL_NO;
break;
case CURL_OPPOSITE:
tn->him[option] = CURL_NO;
tn->himq[option] = CURL_EMPTY;
break;
}
break;
}
}
static void
set_local_option(struct Curl_easy *data, int option, int newstate)
{
struct TELNET *tn = data->req.p.telnet;
if(newstate == CURL_YES) {
switch(tn->us[option]) {
case CURL_NO:
tn->us[option] = CURL_WANTYES;
send_negotiation(data, CURL_WILL, option);
break;
case CURL_YES:
/* Already enabled */
break;
case CURL_WANTNO:
switch(tn->usq[option]) {
case CURL_EMPTY:
/* Already negotiating for CURL_YES, queue the request */
tn->usq[option] = CURL_OPPOSITE;
break;
case CURL_OPPOSITE:
/* Error: already queued an enable request */
break;
}
break;
case CURL_WANTYES:
switch(tn->usq[option]) {
case CURL_EMPTY:
/* Error: already negotiating for enable */
break;
case CURL_OPPOSITE:
tn->usq[option] = CURL_EMPTY;
break;
}
break;
}
}
else { /* NO */
switch(tn->us[option]) {
case CURL_NO:
/* Already disabled */
break;
case CURL_YES:
tn->us[option] = CURL_WANTNO;
send_negotiation(data, CURL_WONT, option);
break;
case CURL_WANTNO:
switch(tn->usq[option]) {
case CURL_EMPTY:
/* Already negotiating for NO */
break;
case CURL_OPPOSITE:
tn->usq[option] = CURL_EMPTY;
break;
}
break;
case CURL_WANTYES:
switch(tn->usq[option]) {
case CURL_EMPTY:
tn->usq[option] = CURL_OPPOSITE;
break;
case CURL_OPPOSITE:
break;
}
break;
}
}
}
static
void rec_do(struct Curl_easy *data, int option)
{
struct TELNET *tn = data->req.p.telnet;
switch(tn->us[option]) {
case CURL_NO:
if(tn->us_preferred[option] == CURL_YES) {
tn->us[option] = CURL_YES;
send_negotiation(data, CURL_WILL, option);
if(tn->subnegotiation[option] == CURL_YES)
/* transmission of data option */
sendsuboption(data, option);
}
else if(tn->subnegotiation[option] == CURL_YES) {
/* send information to achieve this option*/
tn->us[option] = CURL_YES;
send_negotiation(data, CURL_WILL, option);
sendsuboption(data, option);
}
else
send_negotiation(data, CURL_WONT, option);
break;
case CURL_YES:
/* Already enabled */
break;
case CURL_WANTNO:
switch(tn->usq[option]) {
case CURL_EMPTY:
/* Error: DONT answered by WILL */
tn->us[option] = CURL_NO;
break;
case CURL_OPPOSITE:
/* Error: DONT answered by WILL */
tn->us[option] = CURL_YES;
tn->usq[option] = CURL_EMPTY;
break;
}
break;
case CURL_WANTYES:
switch(tn->usq[option]) {
case CURL_EMPTY:
tn->us[option] = CURL_YES;
if(tn->subnegotiation[option] == CURL_YES) {
/* transmission of data option */
sendsuboption(data, option);
}
break;
case CURL_OPPOSITE:
tn->us[option] = CURL_WANTNO;
tn->himq[option] = CURL_EMPTY;
send_negotiation(data, CURL_WONT, option);
break;
}
break;
}
}
static
void rec_dont(struct Curl_easy *data, int option)
{
struct TELNET *tn = data->req.p.telnet;
switch(tn->us[option]) {
case CURL_NO:
/* Already disabled */
break;
case CURL_YES:
tn->us[option] = CURL_NO;
send_negotiation(data, CURL_WONT, option);
break;
case CURL_WANTNO:
switch(tn->usq[option]) {
case CURL_EMPTY:
tn->us[option] = CURL_NO;
break;
case CURL_OPPOSITE:
tn->us[option] = CURL_WANTYES;
tn->usq[option] = CURL_EMPTY;
send_negotiation(data, CURL_WILL, option);
break;
}
break;
case CURL_WANTYES:
switch(tn->usq[option]) {
case CURL_EMPTY:
tn->us[option] = CURL_NO;
break;
case CURL_OPPOSITE:
tn->us[option] = CURL_NO;
tn->usq[option] = CURL_EMPTY;
break;
}
break;
}
}
static void printsub(struct Curl_easy *data,
int direction, /* '<' or '>' */
unsigned char *pointer, /* where suboption data is */
size_t length) /* length of suboption data */
{
if(data->set.verbose) {
unsigned int i = 0;
if(direction) {
infof(data, "%s IAC SB ", (direction == '<')? "RCVD":"SENT");
if(length >= 3) {
int j;
i = pointer[length-2];
j = pointer[length-1];
if(i != CURL_IAC || j != CURL_SE) {
infof(data, "(terminated by ");
if(CURL_TELOPT_OK(i))
infof(data, "%s ", CURL_TELOPT(i));
else if(CURL_TELCMD_OK(i))
infof(data, "%s ", CURL_TELCMD(i));
else
infof(data, "%u ", i);
if(CURL_TELOPT_OK(j))
infof(data, "%s", CURL_TELOPT(j));
else if(CURL_TELCMD_OK(j))
infof(data, "%s", CURL_TELCMD(j));
else
infof(data, "%d", j);
infof(data, ", not IAC SE!) ");
}
}
length -= 2;
}
if(length < 1) {
infof(data, "(Empty suboption?)");
return;
}
if(CURL_TELOPT_OK(pointer[0])) {
switch(pointer[0]) {
case CURL_TELOPT_TTYPE:
case CURL_TELOPT_XDISPLOC:
case CURL_TELOPT_NEW_ENVIRON:
case CURL_TELOPT_NAWS:
infof(data, "%s", CURL_TELOPT(pointer[0]));
break;
default:
infof(data, "%s (unsupported)", CURL_TELOPT(pointer[0]));
break;
}
}
else
infof(data, "%d (unknown)", pointer[i]);
switch(pointer[0]) {
case CURL_TELOPT_NAWS:
if(length > 4)
infof(data, "Width: %d ; Height: %d", (pointer[1]<<8) | pointer[2],
(pointer[3]<<8) | pointer[4]);
break;
default:
switch(pointer[1]) {
case CURL_TELQUAL_IS:
infof(data, " IS");
break;
case CURL_TELQUAL_SEND:
infof(data, " SEND");
break;
case CURL_TELQUAL_INFO:
infof(data, " INFO/REPLY");
break;
case CURL_TELQUAL_NAME:
infof(data, " NAME");
break;
}
switch(pointer[0]) {
case CURL_TELOPT_TTYPE:
case CURL_TELOPT_XDISPLOC:
pointer[length] = 0;
infof(data, " \"%s\"", &pointer[2]);
break;
case CURL_TELOPT_NEW_ENVIRON:
if(pointer[1] == CURL_TELQUAL_IS) {
infof(data, " ");
for(i = 3; i < length; i++) {
switch(pointer[i]) {
case CURL_NEW_ENV_VAR:
infof(data, ", ");
break;
case CURL_NEW_ENV_VALUE:
infof(data, " = ");
break;
default:
infof(data, "%c", pointer[i]);
break;
}
}
}
break;
default:
for(i = 2; i < length; i++)
infof(data, " %.2x", pointer[i]);
break;
}
}
}
}
static CURLcode check_telnet_options(struct Curl_easy *data)
{
struct curl_slist *head;
struct curl_slist *beg;
char option_keyword[128] = "";
char option_arg[256] = "";
struct TELNET *tn = data->req.p.telnet;
struct connectdata *conn = data->conn;
CURLcode result = CURLE_OK;
int binary_option;
/* Add the user name as an environment variable if it
was given on the command line */
if(conn->bits.user_passwd) {
msnprintf(option_arg, sizeof(option_arg), "USER,%s", conn->user);
beg = curl_slist_append(tn->telnet_vars, option_arg);
if(!beg) {
curl_slist_free_all(tn->telnet_vars);
tn->telnet_vars = NULL;
return CURLE_OUT_OF_MEMORY;
}
tn->telnet_vars = beg;
tn->us_preferred[CURL_TELOPT_NEW_ENVIRON] = CURL_YES;
}
for(head = data->set.telnet_options; head; head = head->next) {
if(sscanf(head->data, "%127[^= ]%*[ =]%255s",
option_keyword, option_arg) == 2) {
/* Terminal type */
if(strcasecompare(option_keyword, "TTYPE")) {
strncpy(tn->subopt_ttype, option_arg, 31);
tn->subopt_ttype[31] = 0; /* String termination */
tn->us_preferred[CURL_TELOPT_TTYPE] = CURL_YES;
continue;
}
/* Display variable */
if(strcasecompare(option_keyword, "XDISPLOC")) {
strncpy(tn->subopt_xdisploc, option_arg, 127);
tn->subopt_xdisploc[127] = 0; /* String termination */
tn->us_preferred[CURL_TELOPT_XDISPLOC] = CURL_YES;
continue;
}
/* Environment variable */
if(strcasecompare(option_keyword, "NEW_ENV")) {
beg = curl_slist_append(tn->telnet_vars, option_arg);
if(!beg) {
result = CURLE_OUT_OF_MEMORY;
break;
}
tn->telnet_vars = beg;
tn->us_preferred[CURL_TELOPT_NEW_ENVIRON] = CURL_YES;
continue;
}
/* Window Size */
if(strcasecompare(option_keyword, "WS")) {
if(sscanf(option_arg, "%hu%*[xX]%hu",
&tn->subopt_wsx, &tn->subopt_wsy) == 2)
tn->us_preferred[CURL_TELOPT_NAWS] = CURL_YES;
else {
failf(data, "Syntax error in telnet option: %s", head->data);
result = CURLE_SETOPT_OPTION_SYNTAX;
break;
}
continue;
}
/* To take care or not of the 8th bit in data exchange */
if(strcasecompare(option_keyword, "BINARY")) {
binary_option = atoi(option_arg);
if(binary_option != 1) {
tn->us_preferred[CURL_TELOPT_BINARY] = CURL_NO;
tn->him_preferred[CURL_TELOPT_BINARY] = CURL_NO;
}
continue;
}
failf(data, "Unknown telnet option %s", head->data);
result = CURLE_UNKNOWN_OPTION;
break;
}
failf(data, "Syntax error in telnet option: %s", head->data);
result = CURLE_SETOPT_OPTION_SYNTAX;
break;
}
if(result) {
curl_slist_free_all(tn->telnet_vars);
tn->telnet_vars = NULL;
}
return result;
}
/*
* suboption()
*
* Look at the sub-option buffer, and try to be helpful to the other
* side.
*/
static void suboption(struct Curl_easy *data)
{
struct curl_slist *v;
unsigned char temp[2048];
ssize_t bytes_written;
size_t len;
int err;
char varname[128] = "";
char varval[128] = "";
struct TELNET *tn = data->req.p.telnet;
struct connectdata *conn = data->conn;
printsub(data, '<', (unsigned char *)tn->subbuffer, CURL_SB_LEN(tn) + 2);
switch(CURL_SB_GET(tn)) {
case CURL_TELOPT_TTYPE:
len = strlen(tn->subopt_ttype) + 4 + 2;
msnprintf((char *)temp, sizeof(temp),
"%c%c%c%c%s%c%c", CURL_IAC, CURL_SB, CURL_TELOPT_TTYPE,
CURL_TELQUAL_IS, tn->subopt_ttype, CURL_IAC, CURL_SE);
bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data,"Sending data failed (%d)",err);
}
printsub(data, '>', &temp[2], len-2);
break;
case CURL_TELOPT_XDISPLOC:
len = strlen(tn->subopt_xdisploc) + 4 + 2;
msnprintf((char *)temp, sizeof(temp),
"%c%c%c%c%s%c%c", CURL_IAC, CURL_SB, CURL_TELOPT_XDISPLOC,
CURL_TELQUAL_IS, tn->subopt_xdisploc, CURL_IAC, CURL_SE);
bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data,"Sending data failed (%d)",err);
}
printsub(data, '>', &temp[2], len-2);
break;
case CURL_TELOPT_NEW_ENVIRON:
msnprintf((char *)temp, sizeof(temp),
"%c%c%c%c", CURL_IAC, CURL_SB, CURL_TELOPT_NEW_ENVIRON,
CURL_TELQUAL_IS);
len = 4;
for(v = tn->telnet_vars; v; v = v->next) {
size_t tmplen = (strlen(v->data) + 1);
/* Add the variable only if it fits */
if(len + tmplen < (int)sizeof(temp)-6) {
int rv;
char sep[2] = "";
varval[0] = 0;
rv = sscanf(v->data, "%127[^,]%1[,]%127s", varname, sep, varval);
if(rv == 1)
len += msnprintf((char *)&temp[len], sizeof(temp) - len,
"%c%s", CURL_NEW_ENV_VAR, varname);
else if(rv >= 2)
len += msnprintf((char *)&temp[len], sizeof(temp) - len,
"%c%s%c%s", CURL_NEW_ENV_VAR, varname,
CURL_NEW_ENV_VALUE, varval);
}
}
msnprintf((char *)&temp[len], sizeof(temp) - len,
"%c%c", CURL_IAC, CURL_SE);
len += 2;
bytes_written = swrite(conn->sock[FIRSTSOCKET], temp, len);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data,"Sending data failed (%d)",err);
}
printsub(data, '>', &temp[2], len-2);
break;
}
return;
}
/*
* sendsuboption()
*
* Send suboption information to the server side.
*/
static void sendsuboption(struct Curl_easy *data, int option)
{
ssize_t bytes_written;
int err;
unsigned short x, y;
unsigned char *uc1, *uc2;
struct TELNET *tn = data->req.p.telnet;
struct connectdata *conn = data->conn;
switch(option) {
case CURL_TELOPT_NAWS:
/* We prepare data to be sent */
CURL_SB_CLEAR(tn);
CURL_SB_ACCUM(tn, CURL_IAC);
CURL_SB_ACCUM(tn, CURL_SB);
CURL_SB_ACCUM(tn, CURL_TELOPT_NAWS);
/* We must deal either with little or big endian processors */
/* Window size must be sent according to the 'network order' */
x = htons(tn->subopt_wsx);
y = htons(tn->subopt_wsy);
uc1 = (unsigned char *)&x;
uc2 = (unsigned char *)&y;
CURL_SB_ACCUM(tn, uc1[0]);
CURL_SB_ACCUM(tn, uc1[1]);
CURL_SB_ACCUM(tn, uc2[0]);
CURL_SB_ACCUM(tn, uc2[1]);
CURL_SB_ACCUM(tn, CURL_IAC);
CURL_SB_ACCUM(tn, CURL_SE);
CURL_SB_TERM(tn);
/* data suboption is now ready */
printsub(data, '>', (unsigned char *)tn->subbuffer + 2,
CURL_SB_LEN(tn)-2);
/* we send the header of the suboption... */
bytes_written = swrite(conn->sock[FIRSTSOCKET], tn->subbuffer, 3);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data, "Sending data failed (%d)", err);
}
/* ... then the window size with the send_telnet_data() function
to deal with 0xFF cases ... */
send_telnet_data(data, (char *)tn->subbuffer + 3, 4);
/* ... and the footer */
bytes_written = swrite(conn->sock[FIRSTSOCKET], tn->subbuffer + 7, 2);
if(bytes_written < 0) {
err = SOCKERRNO;
failf(data, "Sending data failed (%d)", err);
}
break;
}
}
static
CURLcode telrcv(struct Curl_easy *data,
const unsigned char *inbuf, /* Data received from socket */
ssize_t count) /* Number of bytes received */
{
unsigned char c;
CURLcode result;
int in = 0;
int startwrite = -1;
struct TELNET *tn = data->req.p.telnet;
#define startskipping() \
if(startwrite >= 0) { \
result = Curl_client_write(data, \
CLIENTWRITE_BODY, \
(char *)&inbuf[startwrite], \
in-startwrite); \
if(result) \
return result; \
} \
startwrite = -1
#define writebyte() \
if(startwrite < 0) \
startwrite = in
#define bufferflush() startskipping()
while(count--) {
c = inbuf[in];
switch(tn->telrcv_state) {
case CURL_TS_CR:
tn->telrcv_state = CURL_TS_DATA;
if(c == '\0') {
startskipping();
break; /* Ignore \0 after CR */
}
writebyte();
break;
case CURL_TS_DATA:
if(c == CURL_IAC) {
tn->telrcv_state = CURL_TS_IAC;
startskipping();
break;
}
else if(c == '\r')
tn->telrcv_state = CURL_TS_CR;
writebyte();
break;
case CURL_TS_IAC:
process_iac:
DEBUGASSERT(startwrite < 0);
switch(c) {
case CURL_WILL:
tn->telrcv_state = CURL_TS_WILL;
break;
case CURL_WONT:
tn->telrcv_state = CURL_TS_WONT;
break;
case CURL_DO:
tn->telrcv_state = CURL_TS_DO;
break;
case CURL_DONT:
tn->telrcv_state = CURL_TS_DONT;
break;
case CURL_SB:
CURL_SB_CLEAR(tn);
tn->telrcv_state = CURL_TS_SB;
break;
case CURL_IAC:
tn->telrcv_state = CURL_TS_DATA;
writebyte();
break;
case CURL_DM:
case CURL_NOP:
case CURL_GA:
default:
tn->telrcv_state = CURL_TS_DATA;
printoption(data, "RCVD", CURL_IAC, c);
break;
}
break;
case CURL_TS_WILL:
printoption(data, "RCVD", CURL_WILL, c);
tn->please_negotiate = 1;
rec_will(data, c);
tn->telrcv_state = CURL_TS_DATA;
break;
case CURL_TS_WONT:
printoption(data, "RCVD", CURL_WONT, c);
tn->please_negotiate = 1;
rec_wont(data, c);
tn->telrcv_state = CURL_TS_DATA;
break;
case CURL_TS_DO:
printoption(data, "RCVD", CURL_DO, c);
tn->please_negotiate = 1;
rec_do(data, c);
tn->telrcv_state = CURL_TS_DATA;
break;
case CURL_TS_DONT:
printoption(data, "RCVD", CURL_DONT, c);
tn->please_negotiate = 1;
rec_dont(data, c);
tn->telrcv_state = CURL_TS_DATA;
break;
case CURL_TS_SB:
if(c == CURL_IAC)
tn->telrcv_state = CURL_TS_SE;
else
CURL_SB_ACCUM(tn, c);
break;
case CURL_TS_SE:
if(c != CURL_SE) {
if(c != CURL_IAC) {
/*
* This is an error. We only expect to get "IAC IAC" or "IAC SE".
* Several things may have happened. An IAC was not doubled, the
* IAC SE was left off, or another option got inserted into the
* suboption are all possibilities. If we assume that the IAC was
* not doubled, and really the IAC SE was left off, we could get
* into an infinite loop here. So, instead, we terminate the
* suboption, and process the partial suboption if we can.
*/
CURL_SB_ACCUM(tn, CURL_IAC);
CURL_SB_ACCUM(tn, c);
tn->subpointer -= 2;
CURL_SB_TERM(tn);
printoption(data, "In SUBOPTION processing, RCVD", CURL_IAC, c);
suboption(data); /* handle sub-option */
tn->telrcv_state = CURL_TS_IAC;
goto process_iac;
}
CURL_SB_ACCUM(tn, c);
tn->telrcv_state = CURL_TS_SB;
}
else {
CURL_SB_ACCUM(tn, CURL_IAC);
CURL_SB_ACCUM(tn, CURL_SE);
tn->subpointer -= 2;
CURL_SB_TERM(tn);
suboption(data); /* handle sub-option */
tn->telrcv_state = CURL_TS_DATA;
}
break;
}
++in;
}
bufferflush();
return CURLE_OK;
}
/* Escape and send a telnet data block */
static CURLcode send_telnet_data(struct Curl_easy *data,
char *buffer, ssize_t nread)
{
ssize_t escapes, i, outlen;
unsigned char *outbuf = NULL;
CURLcode result = CURLE_OK;
ssize_t bytes_written, total_written;
struct connectdata *conn = data->conn;
/* Determine size of new buffer after escaping */
escapes = 0;
for(i = 0; i < nread; i++)
if((unsigned char)buffer[i] == CURL_IAC)
escapes++;
outlen = nread + escapes;
if(outlen == nread)
outbuf = (unsigned char *)buffer;
else {
ssize_t j;
outbuf = malloc(nread + escapes + 1);
if(!outbuf)
return CURLE_OUT_OF_MEMORY;
j = 0;
for(i = 0; i < nread; i++) {
outbuf[j++] = buffer[i];
if((unsigned char)buffer[i] == CURL_IAC)
outbuf[j++] = CURL_IAC;
}
outbuf[j] = '\0';
}
total_written = 0;
while(!result && total_written < outlen) {
/* Make sure socket is writable to avoid EWOULDBLOCK condition */
struct pollfd pfd[1];
pfd[0].fd = conn->sock[FIRSTSOCKET];
pfd[0].events = POLLOUT;
switch(Curl_poll(pfd, 1, -1)) {
case -1: /* error, abort writing */
case 0: /* timeout (will never happen) */
result = CURLE_SEND_ERROR;
break;
default: /* write! */
bytes_written = 0;
result = Curl_write(data, conn->sock[FIRSTSOCKET],
outbuf + total_written,
outlen - total_written,
&bytes_written);
total_written += bytes_written;
break;
}
}
/* Free malloc copy if escaped */
if(outbuf != (unsigned char *)buffer)
free(outbuf);
return result;
}
static CURLcode telnet_done(struct Curl_easy *data,
CURLcode status, bool premature)
{
struct TELNET *tn = data->req.p.telnet;
(void)status; /* unused */
(void)premature; /* not used */
if(!tn)
return CURLE_OK;
curl_slist_free_all(tn->telnet_vars);
tn->telnet_vars = NULL;
Curl_safefree(data->req.p.telnet);
return CURLE_OK;
}
static CURLcode telnet_do(struct Curl_easy *data, bool *done)
{
CURLcode result;
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
#ifdef USE_WINSOCK
WSAEVENT event_handle;
WSANETWORKEVENTS events;
HANDLE stdin_handle;
HANDLE objs[2];
DWORD obj_count;
DWORD wait_timeout;
DWORD readfile_read;
int err;
#else
timediff_t interval_ms;
struct pollfd pfd[2];
int poll_cnt;
curl_off_t total_dl = 0;
curl_off_t total_ul = 0;
#endif
ssize_t nread;
struct curltime now;
bool keepon = TRUE;
char *buf = data->state.buffer;
struct TELNET *tn;
*done = TRUE; /* unconditionally */
result = init_telnet(data);
if(result)
return result;
tn = data->req.p.telnet;
result = check_telnet_options(data);
if(result)
return result;
#ifdef USE_WINSOCK
/* We want to wait for both stdin and the socket. Since
** the select() function in winsock only works on sockets
** we have to use the WaitForMultipleObjects() call.
*/
/* First, create a sockets event object */
event_handle = WSACreateEvent();
if(event_handle == WSA_INVALID_EVENT) {
failf(data, "WSACreateEvent failed (%d)", SOCKERRNO);
return CURLE_FAILED_INIT;
}
/* Tell winsock what events we want to listen to */
if(WSAEventSelect(sockfd, event_handle, FD_READ|FD_CLOSE) == SOCKET_ERROR) {
WSACloseEvent(event_handle);
return CURLE_OK;
}
/* The get the Windows file handle for stdin */
stdin_handle = GetStdHandle(STD_INPUT_HANDLE);
/* Create the list of objects to wait for */
objs[0] = event_handle;
objs[1] = stdin_handle;
/* If stdin_handle is a pipe, use PeekNamedPipe() method to check it,
else use the old WaitForMultipleObjects() way */
if(GetFileType(stdin_handle) == FILE_TYPE_PIPE ||
data->set.is_fread_set) {
/* Don't wait for stdin_handle, just wait for event_handle */
obj_count = 1;
/* Check stdin_handle per 100 milliseconds */
wait_timeout = 100;
}
else {
obj_count = 2;
wait_timeout = 1000;
}
/* Keep on listening and act on events */
while(keepon) {
const DWORD buf_size = (DWORD)data->set.buffer_size;
DWORD waitret = WaitForMultipleObjects(obj_count, objs,
FALSE, wait_timeout);
switch(waitret) {
case WAIT_TIMEOUT:
{
for(;;) {
if(data->set.is_fread_set) {
size_t n;
/* read from user-supplied method */
n = data->state.fread_func(buf, 1, buf_size, data->state.in);
if(n == CURL_READFUNC_ABORT) {
keepon = FALSE;
result = CURLE_READ_ERROR;
break;
}
if(n == CURL_READFUNC_PAUSE)
break;
if(n == 0) /* no bytes */
break;
/* fall through with number of bytes read */
readfile_read = (DWORD)n;
}
else {
/* read from stdin */
if(!PeekNamedPipe(stdin_handle, NULL, 0, NULL,
&readfile_read, NULL)) {
keepon = FALSE;
result = CURLE_READ_ERROR;
break;
}
if(!readfile_read)
break;
if(!ReadFile(stdin_handle, buf, buf_size,
&readfile_read, NULL)) {
keepon = FALSE;
result = CURLE_READ_ERROR;
break;
}
}
result = send_telnet_data(data, buf, readfile_read);
if(result) {
keepon = FALSE;
break;
}
}
}
break;
case WAIT_OBJECT_0 + 1:
{
if(!ReadFile(stdin_handle, buf, buf_size,
&readfile_read, NULL)) {
keepon = FALSE;
result = CURLE_READ_ERROR;
break;
}
result = send_telnet_data(data, buf, readfile_read);
if(result) {
keepon = FALSE;
break;
}
}
break;
case WAIT_OBJECT_0:
{
events.lNetworkEvents = 0;
if(WSAEnumNetworkEvents(sockfd, event_handle, &events) == SOCKET_ERROR) {
err = SOCKERRNO;
if(err != EINPROGRESS) {
infof(data, "WSAEnumNetworkEvents failed (%d)", err);
keepon = FALSE;
result = CURLE_READ_ERROR;
}
break;
}
if(events.lNetworkEvents & FD_READ) {
/* read data from network */
result = Curl_read(data, sockfd, buf, data->set.buffer_size, &nread);
/* read would've blocked. Loop again */
if(result == CURLE_AGAIN)
break;
/* returned not-zero, this an error */
else if(result) {
keepon = FALSE;
break;
}
/* returned zero but actually received 0 or less here,
the server closed the connection and we bail out */
else if(nread <= 0) {
keepon = FALSE;
break;
}
result = telrcv(data, (unsigned char *) buf, nread);
if(result) {
keepon = FALSE;
break;
}
/* Negotiate if the peer has started negotiating,
otherwise don't. We don't want to speak telnet with
non-telnet servers, like POP or SMTP. */
if(tn->please_negotiate && !tn->already_negotiated) {
negotiate(data);
tn->already_negotiated = 1;
}
}
if(events.lNetworkEvents & FD_CLOSE) {
keepon = FALSE;
}
}
break;
}
if(data->set.timeout) {
now = Curl_now();
if(Curl_timediff(now, conn->created) >= data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;
keepon = FALSE;
}
}
}
/* We called WSACreateEvent, so call WSACloseEvent */
if(!WSACloseEvent(event_handle)) {
infof(data, "WSACloseEvent failed (%d)", SOCKERRNO);
}
#else
pfd[0].fd = sockfd;
pfd[0].events = POLLIN;
if(data->set.is_fread_set) {
poll_cnt = 1;
interval_ms = 100; /* poll user-supplied read function */
}
else {
/* really using fread, so infile is a FILE* */
pfd[1].fd = fileno((FILE *)data->state.in);
pfd[1].events = POLLIN;
poll_cnt = 2;
interval_ms = 1 * 1000;
}
while(keepon) {
switch(Curl_poll(pfd, poll_cnt, interval_ms)) {
case -1: /* error, stop reading */
keepon = FALSE;
continue;
case 0: /* timeout */
pfd[0].revents = 0;
pfd[1].revents = 0;
/* FALLTHROUGH */
default: /* read! */
if(pfd[0].revents & POLLIN) {
/* read data from network */
result = Curl_read(data, sockfd, buf, data->set.buffer_size, &nread);
/* read would've blocked. Loop again */
if(result == CURLE_AGAIN)
break;
/* returned not-zero, this an error */
if(result) {
keepon = FALSE;
break;
}
/* returned zero but actually received 0 or less here,
the server closed the connection and we bail out */
else if(nread <= 0) {
keepon = FALSE;
break;
}
total_dl += nread;
Curl_pgrsSetDownloadCounter(data, total_dl);
result = telrcv(data, (unsigned char *)buf, nread);
if(result) {
keepon = FALSE;
break;
}
/* Negotiate if the peer has started negotiating,
otherwise don't. We don't want to speak telnet with
non-telnet servers, like POP or SMTP. */
if(tn->please_negotiate && !tn->already_negotiated) {
negotiate(data);
tn->already_negotiated = 1;
}
}
nread = 0;
if(poll_cnt == 2) {
if(pfd[1].revents & POLLIN) { /* read from in file */
nread = read(pfd[1].fd, buf, data->set.buffer_size);
}
}
else {
/* read from user-supplied method */
nread = (int)data->state.fread_func(buf, 1, data->set.buffer_size,
data->state.in);
if(nread == CURL_READFUNC_ABORT) {
keepon = FALSE;
break;
}
if(nread == CURL_READFUNC_PAUSE)
break;
}
if(nread > 0) {
result = send_telnet_data(data, buf, nread);
if(result) {
keepon = FALSE;
break;
}
total_ul += nread;
Curl_pgrsSetUploadCounter(data, total_ul);
}
else if(nread < 0)
keepon = FALSE;
break;
} /* poll switch statement */
if(data->set.timeout) {
now = Curl_now();
if(Curl_timediff(now, conn->created) >= data->set.timeout) {
failf(data, "Time-out");
result = CURLE_OPERATION_TIMEDOUT;
keepon = FALSE;
}
}
if(Curl_pgrsUpdate(data)) {
result = CURLE_ABORTED_BY_CALLBACK;
break;
}
}
#endif
/* mark this as "no further transfer wanted" */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
return result;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_md5.h | #ifndef HEADER_CURL_MD5_H
#define HEADER_CURL_MD5_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
#include "curl_hmac.h"
#define MD5_DIGEST_LEN 16
typedef void (* Curl_MD5_init_func)(void *context);
typedef void (* Curl_MD5_update_func)(void *context,
const unsigned char *data,
unsigned int len);
typedef void (* Curl_MD5_final_func)(unsigned char *result, void *context);
struct MD5_params {
Curl_MD5_init_func md5_init_func; /* Initialize context procedure */
Curl_MD5_update_func md5_update_func; /* Update context with data */
Curl_MD5_final_func md5_final_func; /* Get final result procedure */
unsigned int md5_ctxtsize; /* Context structure size */
unsigned int md5_resultlen; /* Result length (bytes) */
};
struct MD5_context {
const struct MD5_params *md5_hash; /* Hash function definition */
void *md5_hashctx; /* Hash function context */
};
extern const struct MD5_params Curl_DIGEST_MD5[1];
extern const struct HMAC_params Curl_HMAC_MD5[1];
void Curl_md5it(unsigned char *output, const unsigned char *input,
const size_t len);
struct MD5_context *Curl_MD5_init(const struct MD5_params *md5params);
CURLcode Curl_MD5_update(struct MD5_context *context,
const unsigned char *data,
unsigned int len);
CURLcode Curl_MD5_final(struct MD5_context *context, unsigned char *result);
#endif
#endif /* HEADER_CURL_MD5_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/progress.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
#include "sendf.h"
#include "multiif.h"
#include "progress.h"
#include "timeval.h"
#include "curl_printf.h"
/* check rate limits within this many recent milliseconds, at minimum. */
#define MIN_RATE_LIMIT_PERIOD 3000
#ifndef CURL_DISABLE_PROGRESS_METER
/* Provide a string that is 2 + 1 + 2 + 1 + 2 = 8 letters long (plus the zero
byte) */
static void time2str(char *r, curl_off_t seconds)
{
curl_off_t h;
if(seconds <= 0) {
strcpy(r, "--:--:--");
return;
}
h = seconds / CURL_OFF_T_C(3600);
if(h <= CURL_OFF_T_C(99)) {
curl_off_t m = (seconds - (h*CURL_OFF_T_C(3600))) / CURL_OFF_T_C(60);
curl_off_t s = (seconds - (h*CURL_OFF_T_C(3600))) - (m*CURL_OFF_T_C(60));
msnprintf(r, 9, "%2" CURL_FORMAT_CURL_OFF_T ":%02" CURL_FORMAT_CURL_OFF_T
":%02" CURL_FORMAT_CURL_OFF_T, h, m, s);
}
else {
/* this equals to more than 99 hours, switch to a more suitable output
format to fit within the limits. */
curl_off_t d = seconds / CURL_OFF_T_C(86400);
h = (seconds - (d*CURL_OFF_T_C(86400))) / CURL_OFF_T_C(3600);
if(d <= CURL_OFF_T_C(999))
msnprintf(r, 9, "%3" CURL_FORMAT_CURL_OFF_T
"d %02" CURL_FORMAT_CURL_OFF_T "h", d, h);
else
msnprintf(r, 9, "%7" CURL_FORMAT_CURL_OFF_T "d", d);
}
}
/* The point of this function would be to return a string of the input data,
but never longer than 5 columns (+ one zero byte).
Add suffix k, M, G when suitable... */
static char *max5data(curl_off_t bytes, char *max5)
{
#define ONE_KILOBYTE CURL_OFF_T_C(1024)
#define ONE_MEGABYTE (CURL_OFF_T_C(1024) * ONE_KILOBYTE)
#define ONE_GIGABYTE (CURL_OFF_T_C(1024) * ONE_MEGABYTE)
#define ONE_TERABYTE (CURL_OFF_T_C(1024) * ONE_GIGABYTE)
#define ONE_PETABYTE (CURL_OFF_T_C(1024) * ONE_TERABYTE)
if(bytes < CURL_OFF_T_C(100000))
msnprintf(max5, 6, "%5" CURL_FORMAT_CURL_OFF_T, bytes);
else if(bytes < CURL_OFF_T_C(10000) * ONE_KILOBYTE)
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "k", bytes/ONE_KILOBYTE);
else if(bytes < CURL_OFF_T_C(100) * ONE_MEGABYTE)
/* 'XX.XM' is good as long as we're less than 100 megs */
msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE,
(bytes%ONE_MEGABYTE) / (ONE_MEGABYTE/CURL_OFF_T_C(10)) );
#if (SIZEOF_CURL_OFF_T > 4)
else if(bytes < CURL_OFF_T_C(10000) * ONE_MEGABYTE)
/* 'XXXXM' is good until we're at 10000MB or above */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
else if(bytes < CURL_OFF_T_C(100) * ONE_GIGABYTE)
/* 10000 MB - 100 GB, we show it as XX.XG */
msnprintf(max5, 6, "%2" CURL_FORMAT_CURL_OFF_T ".%0"
CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE,
(bytes%ONE_GIGABYTE) / (ONE_GIGABYTE/CURL_OFF_T_C(10)) );
else if(bytes < CURL_OFF_T_C(10000) * ONE_GIGABYTE)
/* up to 10000GB, display without decimal: XXXXG */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "G", bytes/ONE_GIGABYTE);
else if(bytes < CURL_OFF_T_C(10000) * ONE_TERABYTE)
/* up to 10000TB, display without decimal: XXXXT */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "T", bytes/ONE_TERABYTE);
else
/* up to 10000PB, display without decimal: XXXXP */
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "P", bytes/ONE_PETABYTE);
/* 16384 petabytes (16 exabytes) is the maximum a 64 bit unsigned number
can hold, but our data type is signed so 8192PB will be the maximum. */
#else
else
msnprintf(max5, 6, "%4" CURL_FORMAT_CURL_OFF_T "M", bytes/ONE_MEGABYTE);
#endif
return max5;
}
#endif
/*
New proposed interface, 9th of February 2000:
pgrsStartNow() - sets start time
pgrsSetDownloadSize(x) - known expected download size
pgrsSetUploadSize(x) - known expected upload size
pgrsSetDownloadCounter() - amount of data currently downloaded
pgrsSetUploadCounter() - amount of data currently uploaded
pgrsUpdate() - show progress
pgrsDone() - transfer complete
*/
int Curl_pgrsDone(struct Curl_easy *data)
{
int rc;
data->progress.lastshow = 0;
rc = Curl_pgrsUpdate(data); /* the final (forced) update */
if(rc)
return rc;
if(!(data->progress.flags & PGRS_HIDE) &&
!data->progress.callback)
/* only output if we don't use a progress callback and we're not
* hidden */
fprintf(data->set.err, "\n");
data->progress.speeder_c = 0; /* reset the progress meter display */
return 0;
}
/* reset the known transfer sizes */
void Curl_pgrsResetTransferSizes(struct Curl_easy *data)
{
Curl_pgrsSetDownloadSize(data, -1);
Curl_pgrsSetUploadSize(data, -1);
}
/*
*
* Curl_pgrsTime(). Store the current time at the given label. This fetches a
* fresh "now" and returns it.
*
* @unittest: 1399
*/
struct curltime Curl_pgrsTime(struct Curl_easy *data, timerid timer)
{
struct curltime now = Curl_now();
timediff_t *delta = NULL;
switch(timer) {
default:
case TIMER_NONE:
/* mistake filter */
break;
case TIMER_STARTOP:
/* This is set at the start of a transfer */
data->progress.t_startop = now;
break;
case TIMER_STARTSINGLE:
/* This is set at the start of each single fetch */
data->progress.t_startsingle = now;
data->progress.is_t_startransfer_set = false;
break;
case TIMER_STARTACCEPT:
data->progress.t_acceptdata = now;
break;
case TIMER_NAMELOOKUP:
delta = &data->progress.t_nslookup;
break;
case TIMER_CONNECT:
delta = &data->progress.t_connect;
break;
case TIMER_APPCONNECT:
delta = &data->progress.t_appconnect;
break;
case TIMER_PRETRANSFER:
delta = &data->progress.t_pretransfer;
break;
case TIMER_STARTTRANSFER:
delta = &data->progress.t_starttransfer;
/* prevent updating t_starttransfer unless:
* 1) this is the first time we're setting t_starttransfer
* 2) a redirect has occurred since the last time t_starttransfer was set
* This prevents repeated invocations of the function from incorrectly
* changing the t_starttransfer time.
*/
if(data->progress.is_t_startransfer_set) {
return now;
}
else {
data->progress.is_t_startransfer_set = true;
break;
}
case TIMER_POSTRANSFER:
/* this is the normal end-of-transfer thing */
break;
case TIMER_REDIRECT:
data->progress.t_redirect = Curl_timediff_us(now, data->progress.start);
break;
}
if(delta) {
timediff_t us = Curl_timediff_us(now, data->progress.t_startsingle);
if(us < 1)
us = 1; /* make sure at least one microsecond passed */
*delta += us;
}
return now;
}
void Curl_pgrsStartNow(struct Curl_easy *data)
{
data->progress.speeder_c = 0; /* reset the progress meter display */
data->progress.start = Curl_now();
data->progress.is_t_startransfer_set = false;
data->progress.ul_limit_start = data->progress.start;
data->progress.dl_limit_start = data->progress.start;
data->progress.ul_limit_size = 0;
data->progress.dl_limit_size = 0;
data->progress.downloaded = 0;
data->progress.uploaded = 0;
/* clear all bits except HIDE and HEADERS_OUT */
data->progress.flags &= PGRS_HIDE|PGRS_HEADERS_OUT;
Curl_ratelimit(data, data->progress.start);
}
/*
* This is used to handle speed limits, calculating how many milliseconds to
* wait until we're back under the speed limit, if needed.
*
* The way it works is by having a "starting point" (time & amount of data
* transferred by then) used in the speed computation, to be used instead of
* the start of the transfer. This starting point is regularly moved as
* transfer goes on, to keep getting accurate values (instead of average over
* the entire transfer).
*
* This function takes the current amount of data transferred, the amount at
* the starting point, the limit (in bytes/s), the time of the starting point
* and the current time.
*
* Returns 0 if no waiting is needed or when no waiting is needed but the
* starting point should be reset (to current); or the number of milliseconds
* to wait to get back under the speed limit.
*/
timediff_t Curl_pgrsLimitWaitTime(curl_off_t cursize,
curl_off_t startsize,
curl_off_t limit,
struct curltime start,
struct curltime now)
{
curl_off_t size = cursize - startsize;
timediff_t minimum;
timediff_t actual;
if(!limit || !size)
return 0;
/*
* 'minimum' is the number of milliseconds 'size' should take to download to
* stay below 'limit'.
*/
if(size < CURL_OFF_T_MAX/1000)
minimum = (timediff_t) (CURL_OFF_T_C(1000) * size / limit);
else {
minimum = (timediff_t) (size / limit);
if(minimum < TIMEDIFF_T_MAX/1000)
minimum *= 1000;
else
minimum = TIMEDIFF_T_MAX;
}
/*
* 'actual' is the time in milliseconds it took to actually download the
* last 'size' bytes.
*/
actual = Curl_timediff(now, start);
if(actual < minimum) {
/* if it downloaded the data faster than the limit, make it wait the
difference */
return (minimum - actual);
}
return 0;
}
/*
* Set the number of downloaded bytes so far.
*/
void Curl_pgrsSetDownloadCounter(struct Curl_easy *data, curl_off_t size)
{
data->progress.downloaded = size;
}
/*
* Update the timestamp and sizestamp to use for rate limit calculations.
*/
void Curl_ratelimit(struct Curl_easy *data, struct curltime now)
{
/* don't set a new stamp unless the time since last update is long enough */
if(data->set.max_recv_speed) {
if(Curl_timediff(now, data->progress.dl_limit_start) >=
MIN_RATE_LIMIT_PERIOD) {
data->progress.dl_limit_start = now;
data->progress.dl_limit_size = data->progress.downloaded;
}
}
if(data->set.max_send_speed) {
if(Curl_timediff(now, data->progress.ul_limit_start) >=
MIN_RATE_LIMIT_PERIOD) {
data->progress.ul_limit_start = now;
data->progress.ul_limit_size = data->progress.uploaded;
}
}
}
/*
* Set the number of uploaded bytes so far.
*/
void Curl_pgrsSetUploadCounter(struct Curl_easy *data, curl_off_t size)
{
data->progress.uploaded = size;
}
void Curl_pgrsSetDownloadSize(struct Curl_easy *data, curl_off_t size)
{
if(size >= 0) {
data->progress.size_dl = size;
data->progress.flags |= PGRS_DL_SIZE_KNOWN;
}
else {
data->progress.size_dl = 0;
data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
}
}
void Curl_pgrsSetUploadSize(struct Curl_easy *data, curl_off_t size)
{
if(size >= 0) {
data->progress.size_ul = size;
data->progress.flags |= PGRS_UL_SIZE_KNOWN;
}
else {
data->progress.size_ul = 0;
data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
}
}
/* returns the average speed in bytes / second */
static curl_off_t trspeed(curl_off_t size, /* number of bytes */
curl_off_t us) /* microseconds */
{
if(us < 1)
return size * 1000000;
else if(size < CURL_OFF_T_MAX/1000000)
return (size * 1000000) / us;
else if(us >= 1000000)
return size / (us / 1000000);
else
return CURL_OFF_T_MAX;
}
/* returns TRUE if it's time to show the progress meter */
static bool progress_calc(struct Curl_easy *data, struct curltime now)
{
bool timetoshow = FALSE;
struct Progress * const p = &data->progress;
/* The time spent so far (from the start) in microseconds */
p->timespent = Curl_timediff_us(now, p->start);
p->dlspeed = trspeed(p->downloaded, p->timespent);
p->ulspeed = trspeed(p->uploaded, p->timespent);
/* Calculations done at most once a second, unless end is reached */
if(p->lastshow != now.tv_sec) {
int countindex; /* amount of seconds stored in the speeder array */
int nowindex = p->speeder_c% CURR_TIME;
p->lastshow = now.tv_sec;
timetoshow = TRUE;
/* Let's do the "current speed" thing, with the dl + ul speeds
combined. Store the speed at entry 'nowindex'. */
p->speeder[ nowindex ] = p->downloaded + p->uploaded;
/* remember the exact time for this moment */
p->speeder_time [ nowindex ] = now;
/* advance our speeder_c counter, which is increased every time we get
here and we expect it to never wrap as 2^32 is a lot of seconds! */
p->speeder_c++;
/* figure out how many index entries of data we have stored in our speeder
array. With N_ENTRIES filled in, we have about N_ENTRIES-1 seconds of
transfer. Imagine, after one second we have filled in two entries,
after two seconds we've filled in three entries etc. */
countindex = ((p->speeder_c >= CURR_TIME)? CURR_TIME:p->speeder_c) - 1;
/* first of all, we don't do this if there's no counted seconds yet */
if(countindex) {
int checkindex;
timediff_t span_ms;
curl_off_t amount;
/* Get the index position to compare with the 'nowindex' position.
Get the oldest entry possible. While we have less than CURR_TIME
entries, the first entry will remain the oldest. */
checkindex = (p->speeder_c >= CURR_TIME)? p->speeder_c%CURR_TIME:0;
/* Figure out the exact time for the time span */
span_ms = Curl_timediff(now, p->speeder_time[checkindex]);
if(0 == span_ms)
span_ms = 1; /* at least one millisecond MUST have passed */
/* Calculate the average speed the last 'span_ms' milliseconds */
amount = p->speeder[nowindex]- p->speeder[checkindex];
if(amount > CURL_OFF_T_C(4294967) /* 0xffffffff/1000 */)
/* the 'amount' value is bigger than would fit in 32 bits if
multiplied with 1000, so we use the double math for this */
p->current_speed = (curl_off_t)
((double)amount/((double)span_ms/1000.0));
else
/* the 'amount' value is small enough to fit within 32 bits even
when multiplied with 1000 */
p->current_speed = amount*CURL_OFF_T_C(1000)/span_ms;
}
else
/* the first second we use the average */
p->current_speed = p->ulspeed + p->dlspeed;
} /* Calculations end */
return timetoshow;
}
#ifndef CURL_DISABLE_PROGRESS_METER
static void progress_meter(struct Curl_easy *data)
{
char max5[6][10];
curl_off_t dlpercen = 0;
curl_off_t ulpercen = 0;
curl_off_t total_percen = 0;
curl_off_t total_transfer;
curl_off_t total_expected_transfer;
char time_left[10];
char time_total[10];
char time_spent[10];
curl_off_t ulestimate = 0;
curl_off_t dlestimate = 0;
curl_off_t total_estimate;
curl_off_t timespent =
(curl_off_t)data->progress.timespent/1000000; /* seconds */
if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
if(data->state.resume_from) {
fprintf(data->set.err,
"** Resuming transfer from byte position %"
CURL_FORMAT_CURL_OFF_T "\n", data->state.resume_from);
}
fprintf(data->set.err,
" %% Total %% Received %% Xferd Average Speed "
"Time Time Time Current\n"
" Dload Upload "
"Total Spent Left Speed\n");
data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
}
/* Figure out the estimated time of arrival for the upload */
if((data->progress.flags & PGRS_UL_SIZE_KNOWN) &&
(data->progress.ulspeed > CURL_OFF_T_C(0))) {
ulestimate = data->progress.size_ul / data->progress.ulspeed;
if(data->progress.size_ul > CURL_OFF_T_C(10000))
ulpercen = data->progress.uploaded /
(data->progress.size_ul/CURL_OFF_T_C(100));
else if(data->progress.size_ul > CURL_OFF_T_C(0))
ulpercen = (data->progress.uploaded*100) /
data->progress.size_ul;
}
/* ... and the download */
if((data->progress.flags & PGRS_DL_SIZE_KNOWN) &&
(data->progress.dlspeed > CURL_OFF_T_C(0))) {
dlestimate = data->progress.size_dl / data->progress.dlspeed;
if(data->progress.size_dl > CURL_OFF_T_C(10000))
dlpercen = data->progress.downloaded /
(data->progress.size_dl/CURL_OFF_T_C(100));
else if(data->progress.size_dl > CURL_OFF_T_C(0))
dlpercen = (data->progress.downloaded*100) /
data->progress.size_dl;
}
/* Now figure out which of them is slower and use that one for the
total estimate! */
total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;
/* create the three time strings */
time2str(time_left, total_estimate > 0?(total_estimate - timespent):0);
time2str(time_total, total_estimate);
time2str(time_spent, timespent);
/* Get the total amount of data expected to get transferred */
total_expected_transfer =
((data->progress.flags & PGRS_UL_SIZE_KNOWN)?
data->progress.size_ul:data->progress.uploaded)+
((data->progress.flags & PGRS_DL_SIZE_KNOWN)?
data->progress.size_dl:data->progress.downloaded);
/* We have transferred this much so far */
total_transfer = data->progress.downloaded + data->progress.uploaded;
/* Get the percentage of data transferred so far */
if(total_expected_transfer > CURL_OFF_T_C(10000))
total_percen = total_transfer /
(total_expected_transfer/CURL_OFF_T_C(100));
else if(total_expected_transfer > CURL_OFF_T_C(0))
total_percen = (total_transfer*100) / total_expected_transfer;
fprintf(data->set.err,
"\r"
"%3" CURL_FORMAT_CURL_OFF_T " %s "
"%3" CURL_FORMAT_CURL_OFF_T " %s "
"%3" CURL_FORMAT_CURL_OFF_T " %s %s %s %s %s %s %s",
total_percen, /* 3 letters */ /* total % */
max5data(total_expected_transfer, max5[2]), /* total size */
dlpercen, /* 3 letters */ /* rcvd % */
max5data(data->progress.downloaded, max5[0]), /* rcvd size */
ulpercen, /* 3 letters */ /* xfer % */
max5data(data->progress.uploaded, max5[1]), /* xfer size */
max5data(data->progress.dlspeed, max5[3]), /* avrg dl speed */
max5data(data->progress.ulspeed, max5[4]), /* avrg ul speed */
time_total, /* 8 letters */ /* total time */
time_spent, /* 8 letters */ /* time spent */
time_left, /* 8 letters */ /* time left */
max5data(data->progress.current_speed, max5[5])
);
/* we flush the output stream to make it appear as soon as possible */
fflush(data->set.err);
}
#else
/* progress bar disabled */
#define progress_meter(x) Curl_nop_stmt
#endif
/*
* Curl_pgrsUpdate() returns 0 for success or the value returned by the
* progress callback!
*/
int Curl_pgrsUpdate(struct Curl_easy *data)
{
struct curltime now = Curl_now(); /* what time is it */
bool showprogress = progress_calc(data, now);
if(!(data->progress.flags & PGRS_HIDE)) {
if(data->set.fxferinfo) {
int result;
/* There's a callback set, call that */
Curl_set_in_callback(data, true);
result = data->set.fxferinfo(data->set.progress_client,
data->progress.size_dl,
data->progress.downloaded,
data->progress.size_ul,
data->progress.uploaded);
Curl_set_in_callback(data, false);
if(result != CURL_PROGRESSFUNC_CONTINUE) {
if(result)
failf(data, "Callback aborted");
return result;
}
}
else if(data->set.fprogress) {
int result;
/* The older deprecated callback is set, call that */
Curl_set_in_callback(data, true);
result = data->set.fprogress(data->set.progress_client,
(double)data->progress.size_dl,
(double)data->progress.downloaded,
(double)data->progress.size_ul,
(double)data->progress.uploaded);
Curl_set_in_callback(data, false);
if(result != CURL_PROGRESSFUNC_CONTINUE) {
if(result)
failf(data, "Callback aborted");
return result;
}
}
if(showprogress)
progress_meter(data);
}
return 0;
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostip.h | #ifndef HEADER_CURL_HOSTIP_H
#define HEADER_CURL_HOSTIP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "hash.h"
#include "curl_addrinfo.h"
#include "timeval.h" /* for timediff_t */
#include "asyn.h"
#ifdef HAVE_SETJMP_H
#include <setjmp.h>
#endif
#ifdef NETWARE
#undef in_addr_t
#define in_addr_t unsigned long
#endif
/* Allocate enough memory to hold the full name information structs and
* everything. OSF1 is known to require at least 8872 bytes. The buffer
* required for storing all possible aliases and IP numbers is according to
* Stevens' Unix Network Programming 2nd edition, p. 304: 8192 bytes!
*/
#define CURL_HOSTENT_SIZE 9000
#define CURL_TIMEOUT_RESOLVE 300 /* when using asynch methods, we allow this
many seconds for a name resolve */
#define CURL_ASYNC_SUCCESS CURLE_OK
struct addrinfo;
struct hostent;
struct Curl_easy;
struct connectdata;
/*
* Curl_global_host_cache_init() initializes and sets up a global DNS cache.
* Global DNS cache is general badness. Do not use. This will be removed in
* a future version. Use the share interface instead!
*
* Returns a struct Curl_hash pointer on success, NULL on failure.
*/
struct Curl_hash *Curl_global_host_cache_init(void);
struct Curl_dns_entry {
struct Curl_addrinfo *addr;
/* timestamp == 0 -- permanent CURLOPT_RESOLVE entry (doesn't time out) */
time_t timestamp;
/* use-counter, use Curl_resolv_unlock to release reference */
long inuse;
};
bool Curl_host_is_ipnum(const char *hostname);
/*
* Curl_resolv() returns an entry with the info for the specified host
* and port.
*
* The returned data *MUST* be "unlocked" with Curl_resolv_unlock() after
* use, or we'll leak memory!
*/
/* return codes */
enum resolve_t {
CURLRESOLV_TIMEDOUT = -2,
CURLRESOLV_ERROR = -1,
CURLRESOLV_RESOLVED = 0,
CURLRESOLV_PENDING = 1
};
enum resolve_t Curl_resolv(struct Curl_easy *data,
const char *hostname,
int port,
bool allowDOH,
struct Curl_dns_entry **dnsentry);
enum resolve_t Curl_resolv_timeout(struct Curl_easy *data,
const char *hostname, int port,
struct Curl_dns_entry **dnsentry,
timediff_t timeoutms);
#ifdef ENABLE_IPV6
/*
* Curl_ipv6works() returns TRUE if IPv6 seems to work.
*/
bool Curl_ipv6works(struct Curl_easy *data);
#else
#define Curl_ipv6works(x) FALSE
#endif
/*
* Curl_ipvalid() checks what CURL_IPRESOLVE_* requirements that might've
* been set and returns TRUE if they are OK.
*/
bool Curl_ipvalid(struct Curl_easy *data, struct connectdata *conn);
/*
* Curl_getaddrinfo() is the generic low-level name resolve API within this
* source file. There are several versions of this function - for different
* name resolve layers (selected at build-time). They all take this same set
* of arguments
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp);
/* unlock a previously resolved dns entry */
void Curl_resolv_unlock(struct Curl_easy *data,
struct Curl_dns_entry *dns);
/* init a new dns cache and return success */
int Curl_mk_dnscache(struct Curl_hash *hash);
/* prune old entries from the DNS cache */
void Curl_hostcache_prune(struct Curl_easy *data);
/* Return # of addresses in a Curl_addrinfo struct */
int Curl_num_addresses(const struct Curl_addrinfo *addr);
/* IPv4 threadsafe resolve function used for synch and asynch builds */
struct Curl_addrinfo *Curl_ipv4_resolve_r(const char *hostname, int port);
CURLcode Curl_once_resolved(struct Curl_easy *data, bool *protocol_connect);
/*
* Curl_addrinfo_callback() is used when we build with any asynch specialty.
* Handles end of async request processing. Inserts ai into hostcache when
* status is CURL_ASYNC_SUCCESS. Twiddles fields in conn to indicate async
* request completed whether successful or failed.
*/
CURLcode Curl_addrinfo_callback(struct Curl_easy *data,
int status,
struct Curl_addrinfo *ai);
/*
* Curl_printable_address() returns a printable version of the 1st address
* given in the 'ip' argument. The result will be stored in the buf that is
* bufsize bytes big.
*/
void Curl_printable_address(const struct Curl_addrinfo *ip,
char *buf, size_t bufsize);
/*
* Curl_fetch_addr() fetches a 'Curl_dns_entry' already in the DNS cache.
*
* Returns the Curl_dns_entry entry pointer or NULL if not in the cache.
*
* The returned data *MUST* be "unlocked" with Curl_resolv_unlock() after
* use, or we'll leak memory!
*/
struct Curl_dns_entry *
Curl_fetch_addr(struct Curl_easy *data,
const char *hostname,
int port);
/*
* Curl_cache_addr() stores a 'Curl_addrinfo' struct in the DNS cache.
*
* Returns the Curl_dns_entry entry pointer or NULL if the storage failed.
*/
struct Curl_dns_entry *
Curl_cache_addr(struct Curl_easy *data, struct Curl_addrinfo *addr,
const char *hostname, int port);
#ifndef INADDR_NONE
#define CURL_INADDR_NONE (in_addr_t) ~0
#else
#define CURL_INADDR_NONE INADDR_NONE
#endif
#ifdef HAVE_SIGSETJMP
/* Forward-declaration of variable defined in hostip.c. Beware this
* is a global and unique instance. This is used to store the return
* address that we can jump back to from inside a signal handler.
* This is not thread-safe stuff.
*/
extern sigjmp_buf curl_jmpenv;
#endif
/*
* Function provided by the resolver backend to set DNS servers to use.
*/
CURLcode Curl_set_dns_servers(struct Curl_easy *data, char *servers);
/*
* Function provided by the resolver backend to set
* outgoing interface to use for DNS requests
*/
CURLcode Curl_set_dns_interface(struct Curl_easy *data,
const char *interf);
/*
* Function provided by the resolver backend to set
* local IPv4 address to use as source address for DNS requests
*/
CURLcode Curl_set_dns_local_ip4(struct Curl_easy *data,
const char *local_ip4);
/*
* Function provided by the resolver backend to set
* local IPv6 address to use as source address for DNS requests
*/
CURLcode Curl_set_dns_local_ip6(struct Curl_easy *data,
const char *local_ip6);
/*
* Clean off entries from the cache
*/
void Curl_hostcache_clean(struct Curl_easy *data, struct Curl_hash *hash);
/*
* Populate the cache with specified entries from CURLOPT_RESOLVE.
*/
CURLcode Curl_loadhostpairs(struct Curl_easy *data);
CURLcode Curl_resolv_check(struct Curl_easy *data,
struct Curl_dns_entry **dns);
int Curl_resolv_getsock(struct Curl_easy *data,
curl_socket_t *socks);
CURLcode Curl_resolver_error(struct Curl_easy *data);
#endif /* HEADER_CURL_HOSTIP_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_setup_once.h | #ifndef HEADER_CURL_SETUP_ONCE_H
#define HEADER_CURL_SETUP_ONCE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Inclusion of common header files.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#include <time.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef NEED_MALLOC_H
#include <malloc.h>
#endif
#ifdef NEED_MEMORY_H
#include <memory.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef WIN32
#include <io.h>
#include <fcntl.h>
#endif
#if defined(HAVE_STDBOOL_H) && defined(HAVE_BOOL_T)
#include <stdbool.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef __hpux
# if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)
# ifdef _APP32_64BIT_OFF_T
# define OLD_APP32_64BIT_OFF_T _APP32_64BIT_OFF_T
# undef _APP32_64BIT_OFF_T
# else
# undef OLD_APP32_64BIT_OFF_T
# endif
# endif
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef __hpux
# if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)
# ifdef OLD_APP32_64BIT_OFF_T
# define _APP32_64BIT_OFF_T OLD_APP32_64BIT_OFF_T
# undef OLD_APP32_64BIT_OFF_T
# endif
# endif
#endif
/*
* Definition of timeval struct for platforms that don't have it.
*/
#ifndef HAVE_STRUCT_TIMEVAL
struct timeval {
long tv_sec;
long tv_usec;
};
#endif
/*
* If we have the MSG_NOSIGNAL define, make sure we use
* it as the fourth argument of function send()
*/
#ifdef HAVE_MSG_NOSIGNAL
#define SEND_4TH_ARG MSG_NOSIGNAL
#else
#define SEND_4TH_ARG 0
#endif
#if defined(__minix)
/* Minix doesn't support recv on TCP sockets */
#define sread(x,y,z) (ssize_t)read((RECV_TYPE_ARG1)(x), \
(RECV_TYPE_ARG2)(y), \
(RECV_TYPE_ARG3)(z))
#elif defined(HAVE_RECV)
/*
* The definitions for the return type and arguments types
* of functions recv() and send() belong and come from the
* configuration file. Do not define them in any other place.
*
* HAVE_RECV is defined if you have a function named recv()
* which is used to read incoming data from sockets. If your
* function has another name then don't define HAVE_RECV.
*
* If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2,
* RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also
* be defined.
*
* HAVE_SEND is defined if you have a function named send()
* which is used to write outgoing data on a connected socket.
* If yours has another name then don't define HAVE_SEND.
*
* If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2,
* SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and
* SEND_TYPE_RETV must also be defined.
*/
#if !defined(RECV_TYPE_ARG1) || \
!defined(RECV_TYPE_ARG2) || \
!defined(RECV_TYPE_ARG3) || \
!defined(RECV_TYPE_ARG4) || \
!defined(RECV_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_recv
/* */
#else
#define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \
(RECV_TYPE_ARG2)(y), \
(RECV_TYPE_ARG3)(z), \
(RECV_TYPE_ARG4)(0))
#endif
#else /* HAVE_RECV */
#ifndef sread
/* */
Error Missing_definition_of_macro_sread
/* */
#endif
#endif /* HAVE_RECV */
#if defined(__minix)
/* Minix doesn't support send on TCP sockets */
#define swrite(x,y,z) (ssize_t)write((SEND_TYPE_ARG1)(x), \
(SEND_TYPE_ARG2)(y), \
(SEND_TYPE_ARG3)(z))
#elif defined(HAVE_SEND)
#if !defined(SEND_TYPE_ARG1) || \
!defined(SEND_QUAL_ARG2) || \
!defined(SEND_TYPE_ARG2) || \
!defined(SEND_TYPE_ARG3) || \
!defined(SEND_TYPE_ARG4) || \
!defined(SEND_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_send
/* */
#else
#define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \
(SEND_QUAL_ARG2 SEND_TYPE_ARG2)(y), \
(SEND_TYPE_ARG3)(z), \
(SEND_TYPE_ARG4)(SEND_4TH_ARG))
#endif
#else /* HAVE_SEND */
#ifndef swrite
/* */
Error Missing_definition_of_macro_swrite
/* */
#endif
#endif /* HAVE_SEND */
#if 0
#if defined(HAVE_RECVFROM)
/*
* Currently recvfrom is only used on udp sockets.
*/
#if !defined(RECVFROM_TYPE_ARG1) || \
!defined(RECVFROM_TYPE_ARG2) || \
!defined(RECVFROM_TYPE_ARG3) || \
!defined(RECVFROM_TYPE_ARG4) || \
!defined(RECVFROM_TYPE_ARG5) || \
!defined(RECVFROM_TYPE_ARG6) || \
!defined(RECVFROM_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_recvfrom
/* */
#else
#define sreadfrom(s,b,bl,f,fl) (ssize_t)recvfrom((RECVFROM_TYPE_ARG1) (s), \
(RECVFROM_TYPE_ARG2 *)(b), \
(RECVFROM_TYPE_ARG3) (bl), \
(RECVFROM_TYPE_ARG4) (0), \
(RECVFROM_TYPE_ARG5 *)(f), \
(RECVFROM_TYPE_ARG6 *)(fl))
#endif
#else /* HAVE_RECVFROM */
#ifndef sreadfrom
/* */
Error Missing_definition_of_macro_sreadfrom
/* */
#endif
#endif /* HAVE_RECVFROM */
#ifdef RECVFROM_TYPE_ARG6_IS_VOID
# define RECVFROM_ARG6_T int
#else
# define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
#endif
#endif /* if 0 */
/*
* Function-like macro definition used to close a socket.
*/
#if defined(HAVE_CLOSESOCKET)
# define sclose(x) closesocket((x))
#elif defined(HAVE_CLOSESOCKET_CAMEL)
# define sclose(x) CloseSocket((x))
#elif defined(HAVE_CLOSE_S)
# define sclose(x) close_s((x))
#elif defined(USE_LWIPSOCK)
# define sclose(x) lwip_close((x))
#else
# define sclose(x) close((x))
#endif
/*
* Stack-independent version of fcntl() on sockets:
*/
#if defined(USE_LWIPSOCK)
# define sfcntl lwip_fcntl
#else
# define sfcntl fcntl
#endif
#define TOLOWER(x) (tolower((int) ((unsigned char)x)))
/*
* 'bool' stuff compatible with HP-UX headers.
*/
#if defined(__hpux) && !defined(HAVE_BOOL_T)
typedef int bool;
# define false 0
# define true 1
# define HAVE_BOOL_T
#endif
/*
* 'bool' exists on platforms with <stdbool.h>, i.e. C99 platforms.
* On non-C99 platforms there's no bool, so define an enum for that.
* On C99 platforms 'false' and 'true' also exist. Enum uses a
* global namespace though, so use bool_false and bool_true.
*/
#ifndef HAVE_BOOL_T
typedef enum {
bool_false = 0,
bool_true = 1
} bool;
/*
* Use a define to let 'true' and 'false' use those enums. There
* are currently no use of true and false in libcurl proper, but
* there are some in the examples. This will cater for any later
* code happening to use true and false.
*/
# define false bool_false
# define true bool_true
# define HAVE_BOOL_T
#endif
/*
* Redefine TRUE and FALSE too, to catch current use. With this
* change, 'bool found = 1' will give a warning on MIPSPro, but
* 'bool found = TRUE' will not. Change tested on IRIX/MIPSPro,
* AIX 5.1/Xlc, Tru64 5.1/cc, w/make test too.
*/
#ifndef TRUE
#define TRUE true
#endif
#ifndef FALSE
#define FALSE false
#endif
#include "curl_ctype.h"
/*
* Macro used to include code only in debug builds.
*/
#ifdef DEBUGBUILD
#define DEBUGF(x) x
#else
#define DEBUGF(x) do { } while(0)
#endif
/*
* Macro used to include assertion code only in debug builds.
*/
#undef DEBUGASSERT
#if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H)
#define DEBUGASSERT(x) assert(x)
#else
#define DEBUGASSERT(x) do { } while(0)
#endif
/*
* Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno
* (or equivalent) on this platform to hide platform details to code using it.
*/
#ifdef USE_WINSOCK
#define SOCKERRNO ((int)WSAGetLastError())
#define SET_SOCKERRNO(x) (WSASetLastError((int)(x)))
#else
#define SOCKERRNO (errno)
#define SET_SOCKERRNO(x) (errno = (x))
#endif
/*
* Portable error number symbolic names defined to Winsock error codes.
*/
#ifdef USE_WINSOCK
#undef EBADF /* override definition in errno.h */
#define EBADF WSAEBADF
#undef EINTR /* override definition in errno.h */
#define EINTR WSAEINTR
#undef EINVAL /* override definition in errno.h */
#define EINVAL WSAEINVAL
#undef EWOULDBLOCK /* override definition in errno.h */
#define EWOULDBLOCK WSAEWOULDBLOCK
#undef EINPROGRESS /* override definition in errno.h */
#define EINPROGRESS WSAEINPROGRESS
#undef EALREADY /* override definition in errno.h */
#define EALREADY WSAEALREADY
#undef ENOTSOCK /* override definition in errno.h */
#define ENOTSOCK WSAENOTSOCK
#undef EDESTADDRREQ /* override definition in errno.h */
#define EDESTADDRREQ WSAEDESTADDRREQ
#undef EMSGSIZE /* override definition in errno.h */
#define EMSGSIZE WSAEMSGSIZE
#undef EPROTOTYPE /* override definition in errno.h */
#define EPROTOTYPE WSAEPROTOTYPE
#undef ENOPROTOOPT /* override definition in errno.h */
#define ENOPROTOOPT WSAENOPROTOOPT
#undef EPROTONOSUPPORT /* override definition in errno.h */
#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
#undef EOPNOTSUPP /* override definition in errno.h */
#define EOPNOTSUPP WSAEOPNOTSUPP
#define EPFNOSUPPORT WSAEPFNOSUPPORT
#undef EAFNOSUPPORT /* override definition in errno.h */
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#undef EADDRINUSE /* override definition in errno.h */
#define EADDRINUSE WSAEADDRINUSE
#undef EADDRNOTAVAIL /* override definition in errno.h */
#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
#undef ENETDOWN /* override definition in errno.h */
#define ENETDOWN WSAENETDOWN
#undef ENETUNREACH /* override definition in errno.h */
#define ENETUNREACH WSAENETUNREACH
#undef ENETRESET /* override definition in errno.h */
#define ENETRESET WSAENETRESET
#undef ECONNABORTED /* override definition in errno.h */
#define ECONNABORTED WSAECONNABORTED
#undef ECONNRESET /* override definition in errno.h */
#define ECONNRESET WSAECONNRESET
#undef ENOBUFS /* override definition in errno.h */
#define ENOBUFS WSAENOBUFS
#undef EISCONN /* override definition in errno.h */
#define EISCONN WSAEISCONN
#undef ENOTCONN /* override definition in errno.h */
#define ENOTCONN WSAENOTCONN
#define ESHUTDOWN WSAESHUTDOWN
#define ETOOMANYREFS WSAETOOMANYREFS
#undef ETIMEDOUT /* override definition in errno.h */
#define ETIMEDOUT WSAETIMEDOUT
#undef ECONNREFUSED /* override definition in errno.h */
#define ECONNREFUSED WSAECONNREFUSED
#undef ELOOP /* override definition in errno.h */
#define ELOOP WSAELOOP
#ifndef ENAMETOOLONG /* possible previous definition in errno.h */
#define ENAMETOOLONG WSAENAMETOOLONG
#endif
#define EHOSTDOWN WSAEHOSTDOWN
#undef EHOSTUNREACH /* override definition in errno.h */
#define EHOSTUNREACH WSAEHOSTUNREACH
#ifndef ENOTEMPTY /* possible previous definition in errno.h */
#define ENOTEMPTY WSAENOTEMPTY
#endif
#define EPROCLIM WSAEPROCLIM
#define EUSERS WSAEUSERS
#define EDQUOT WSAEDQUOT
#define ESTALE WSAESTALE
#define EREMOTE WSAEREMOTE
#endif
/*
* Macro argv_item_t hides platform details to code using it.
*/
#ifdef __VMS
#define argv_item_t __char_ptr32
#elif defined(_UNICODE)
#define argv_item_t wchar_t *
#else
#define argv_item_t char *
#endif
/*
* We use this ZERO_NULL to avoid picky compiler warnings,
* when assigning a NULL pointer to a function pointer var.
*/
#define ZERO_NULL 0
#endif /* HEADER_CURL_SETUP_ONCE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_ntlm_core.h | #ifndef HEADER_CURL_NTLM_CORE_H
#define HEADER_CURL_NTLM_CORE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_CURL_NTLM_CORE)
/* If NSS is the first available SSL backend (see order in curl_ntlm_core.c)
then it must be initialized to be used by NTLM. */
#if !defined(USE_OPENSSL) && \
!defined(USE_WOLFSSL) && \
!defined(USE_GNUTLS) && \
defined(USE_NSS)
#define NTLM_NEEDS_NSS_INIT
#endif
#if defined(USE_OPENSSL) || defined(USE_WOLFSSL)
#ifdef USE_WOLFSSL
# include <wolfssl/options.h>
#endif
# include <openssl/ssl.h>
#endif
/* Define USE_NTRESPONSES in order to make the type-3 message include
* the NT response message. */
#define USE_NTRESPONSES
/* Define USE_NTLM2SESSION in order to make the type-3 message include the
NTLM2Session response message, requires USE_NTRESPONSES defined to 1 */
#if defined(USE_NTRESPONSES)
#define USE_NTLM2SESSION
#endif
/* Define USE_NTLM_V2 in order to allow the type-3 message to include the
LMv2 and NTLMv2 response messages, requires USE_NTRESPONSES defined to 1 */
#if defined(USE_NTRESPONSES)
#define USE_NTLM_V2
#endif
/* Helpers to generate function byte arguments in little endian order */
#define SHORTPAIR(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff))
#define LONGQUARTET(x) ((int)((x) & 0xff)), ((int)(((x) >> 8) & 0xff)), \
((int)(((x) >> 16) & 0xff)), ((int)(((x) >> 24) & 0xff))
void Curl_ntlm_core_lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results);
CURLcode Curl_ntlm_core_mk_lm_hash(struct Curl_easy *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */);
#ifdef USE_NTRESPONSES
CURLcode Curl_ntlm_core_mk_nt_hash(struct Curl_easy *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */);
#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
CURLcode Curl_hmac_md5(const unsigned char *key, unsigned int keylen,
const unsigned char *data, unsigned int datalen,
unsigned char *output);
CURLcode Curl_ntlm_core_mk_ntlmv2_hash(const char *user, size_t userlen,
const char *domain, size_t domlen,
unsigned char *ntlmhash,
unsigned char *ntlmv2hash);
CURLcode Curl_ntlm_core_mk_ntlmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
struct ntlmdata *ntlm,
unsigned char **ntresp,
unsigned int *ntresp_len);
CURLcode Curl_ntlm_core_mk_lmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
unsigned char *challenge_server,
unsigned char *lmresp);
#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
#endif /* USE_NTRESPONSES */
#endif /* USE_CURL_NTLM_CORE */
#endif /* HEADER_CURL_NTLM_CORE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/ftp.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#include "if2ip.h"
#include "hostip.h"
#include "progress.h"
#include "transfer.h"
#include "escape.h"
#include "http.h" /* for HTTP proxy tunnel stuff */
#include "ftp.h"
#include "fileinfo.h"
#include "ftplistparser.h"
#include "curl_range.h"
#include "curl_krb5.h"
#include "strtoofft.h"
#include "strcase.h"
#include "vtls/vtls.h"
#include "connect.h"
#include "strerror.h"
#include "inet_ntop.h"
#include "inet_pton.h"
#include "select.h"
#include "parsedate.h" /* for the week day and month names */
#include "sockaddr.h" /* required for Curl_sockaddr_storage */
#include "multiif.h"
#include "url.h"
#include "strcase.h"
#include "speedcheck.h"
#include "warnless.h"
#include "http_proxy.h"
#include "non-ascii.h"
#include "socks.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#ifndef NI_MAXHOST
#define NI_MAXHOST 1025
#endif
#ifndef INET_ADDRSTRLEN
#define INET_ADDRSTRLEN 16
#endif
#ifdef CURL_DISABLE_VERBOSE_STRINGS
#define ftp_pasv_verbose(a,b,c,d) Curl_nop_stmt
#endif
/* Local API functions */
#ifndef DEBUGBUILD
static void _state(struct Curl_easy *data,
ftpstate newstate);
#define state(x,y) _state(x,y)
#else
static void _state(struct Curl_easy *data,
ftpstate newstate,
int lineno);
#define state(x,y) _state(x,y,__LINE__)
#endif
static CURLcode ftp_sendquote(struct Curl_easy *data,
struct connectdata *conn,
struct curl_slist *quote);
static CURLcode ftp_quit(struct Curl_easy *data, struct connectdata *conn);
static CURLcode ftp_parse_url_path(struct Curl_easy *data);
static CURLcode ftp_regular_transfer(struct Curl_easy *data, bool *done);
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void ftp_pasv_verbose(struct Curl_easy *data,
struct Curl_addrinfo *ai,
char *newhost, /* ascii version */
int port);
#endif
static CURLcode ftp_state_prepare_transfer(struct Curl_easy *data);
static CURLcode ftp_state_mdtm(struct Curl_easy *data);
static CURLcode ftp_state_quote(struct Curl_easy *data,
bool init, ftpstate instate);
static CURLcode ftp_nb_type(struct Curl_easy *data,
struct connectdata *conn,
bool ascii, ftpstate newstate);
static int ftp_need_type(struct connectdata *conn,
bool ascii);
static CURLcode ftp_do(struct Curl_easy *data, bool *done);
static CURLcode ftp_done(struct Curl_easy *data,
CURLcode, bool premature);
static CURLcode ftp_connect(struct Curl_easy *data, bool *done);
static CURLcode ftp_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead_connection);
static CURLcode ftp_do_more(struct Curl_easy *data, int *completed);
static CURLcode ftp_multi_statemach(struct Curl_easy *data, bool *done);
static int ftp_getsock(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t *socks);
static int ftp_domore_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks);
static CURLcode ftp_doing(struct Curl_easy *data,
bool *dophase_done);
static CURLcode ftp_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode init_wc_data(struct Curl_easy *data);
static CURLcode wc_statemach(struct Curl_easy *data);
static void wc_data_dtor(void *ptr);
static CURLcode ftp_state_retr(struct Curl_easy *data, curl_off_t filesize);
static CURLcode ftp_readresp(struct Curl_easy *data,
curl_socket_t sockfd,
struct pingpong *pp,
int *ftpcode,
size_t *size);
static CURLcode ftp_dophase_done(struct Curl_easy *data,
bool connected);
/*
* FTP protocol handler.
*/
const struct Curl_handler Curl_handler_ftp = {
"FTP", /* scheme */
ftp_setup_connection, /* setup_connection */
ftp_do, /* do_it */
ftp_done, /* done */
ftp_do_more, /* do_more */
ftp_connect, /* connect_it */
ftp_multi_statemach, /* connecting */
ftp_doing, /* doing */
ftp_getsock, /* proto_getsock */
ftp_getsock, /* doing_getsock */
ftp_domore_getsock, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ftp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_FTP, /* defport */
CURLPROTO_FTP, /* protocol */
CURLPROTO_FTP, /* family */
PROTOPT_DUAL | PROTOPT_CLOSEACTION | PROTOPT_NEEDSPWD |
PROTOPT_NOURLQUERY | PROTOPT_PROXY_AS_HTTP |
PROTOPT_WILDCARD /* flags */
};
#ifdef USE_SSL
/*
* FTPS protocol handler.
*/
const struct Curl_handler Curl_handler_ftps = {
"FTPS", /* scheme */
ftp_setup_connection, /* setup_connection */
ftp_do, /* do_it */
ftp_done, /* done */
ftp_do_more, /* do_more */
ftp_connect, /* connect_it */
ftp_multi_statemach, /* connecting */
ftp_doing, /* doing */
ftp_getsock, /* proto_getsock */
ftp_getsock, /* doing_getsock */
ftp_domore_getsock, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ftp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_FTPS, /* defport */
CURLPROTO_FTPS, /* protocol */
CURLPROTO_FTP, /* family */
PROTOPT_SSL | PROTOPT_DUAL | PROTOPT_CLOSEACTION |
PROTOPT_NEEDSPWD | PROTOPT_NOURLQUERY | PROTOPT_WILDCARD /* flags */
};
#endif
static void close_secondarysocket(struct Curl_easy *data,
struct connectdata *conn)
{
if(CURL_SOCKET_BAD != conn->sock[SECONDARYSOCKET]) {
Curl_closesocket(data, conn, conn->sock[SECONDARYSOCKET]);
conn->sock[SECONDARYSOCKET] = CURL_SOCKET_BAD;
}
conn->bits.tcpconnect[SECONDARYSOCKET] = FALSE;
#ifndef CURL_DISABLE_PROXY
conn->bits.proxy_ssl_connected[SECONDARYSOCKET] = FALSE;
#endif
}
/*
* NOTE: back in the old days, we added code in the FTP code that made NOBODY
* requests on files respond with headers passed to the client/stdout that
* looked like HTTP ones.
*
* This approach is not very elegant, it causes confusion and is error-prone.
* It is subject for removal at the next (or at least a future) soname bump.
* Until then you can test the effects of the removal by undefining the
* following define named CURL_FTP_HTTPSTYLE_HEAD.
*/
#define CURL_FTP_HTTPSTYLE_HEAD 1
static void freedirs(struct ftp_conn *ftpc)
{
if(ftpc->dirs) {
int i;
for(i = 0; i < ftpc->dirdepth; i++) {
free(ftpc->dirs[i]);
ftpc->dirs[i] = NULL;
}
free(ftpc->dirs);
ftpc->dirs = NULL;
ftpc->dirdepth = 0;
}
Curl_safefree(ftpc->file);
/* no longer of any use */
Curl_safefree(ftpc->newhost);
}
/***********************************************************************
*
* AcceptServerConnect()
*
* After connection request is received from the server this function is
* called to accept the connection and close the listening socket
*
*/
static CURLcode AcceptServerConnect(struct Curl_easy *data)
{
struct connectdata *conn = data->conn;
curl_socket_t sock = conn->sock[SECONDARYSOCKET];
curl_socket_t s = CURL_SOCKET_BAD;
#ifdef ENABLE_IPV6
struct Curl_sockaddr_storage add;
#else
struct sockaddr_in add;
#endif
curl_socklen_t size = (curl_socklen_t) sizeof(add);
if(0 == getsockname(sock, (struct sockaddr *) &add, &size)) {
size = sizeof(add);
s = accept(sock, (struct sockaddr *) &add, &size);
}
Curl_closesocket(data, conn, sock); /* close the first socket */
if(CURL_SOCKET_BAD == s) {
failf(data, "Error accept()ing server connect");
return CURLE_FTP_PORT_FAILED;
}
infof(data, "Connection accepted from server");
/* when this happens within the DO state it is important that we mark us as
not needing DO_MORE anymore */
conn->bits.do_more = FALSE;
conn->sock[SECONDARYSOCKET] = s;
(void)curlx_nonblock(s, TRUE); /* enable non-blocking */
conn->bits.sock_accepted = TRUE;
if(data->set.fsockopt) {
int error = 0;
/* activate callback for setting socket options */
Curl_set_in_callback(data, true);
error = data->set.fsockopt(data->set.sockopt_client,
s,
CURLSOCKTYPE_ACCEPT);
Curl_set_in_callback(data, false);
if(error) {
close_secondarysocket(data, conn);
return CURLE_ABORTED_BY_CALLBACK;
}
}
return CURLE_OK;
}
/*
* ftp_timeleft_accept() returns the amount of milliseconds left allowed for
* waiting server to connect. If the value is negative, the timeout time has
* already elapsed.
*
* The start time is stored in progress.t_acceptdata - as set with
* Curl_pgrsTime(..., TIMER_STARTACCEPT);
*
*/
static timediff_t ftp_timeleft_accept(struct Curl_easy *data)
{
timediff_t timeout_ms = DEFAULT_ACCEPT_TIMEOUT;
timediff_t other;
struct curltime now;
if(data->set.accepttimeout > 0)
timeout_ms = data->set.accepttimeout;
now = Curl_now();
/* check if the generic timeout possibly is set shorter */
other = Curl_timeleft(data, &now, FALSE);
if(other && (other < timeout_ms))
/* note that this also works fine for when other happens to be negative
due to it already having elapsed */
timeout_ms = other;
else {
/* subtract elapsed time */
timeout_ms -= Curl_timediff(now, data->progress.t_acceptdata);
if(!timeout_ms)
/* avoid returning 0 as that means no timeout! */
return -1;
}
return timeout_ms;
}
/***********************************************************************
*
* ReceivedServerConnect()
*
* After allowing server to connect to us from data port, this function
* checks both data connection for connection establishment and ctrl
* connection for a negative response regarding a failure in connecting
*
*/
static CURLcode ReceivedServerConnect(struct Curl_easy *data, bool *received)
{
struct connectdata *conn = data->conn;
curl_socket_t ctrl_sock = conn->sock[FIRSTSOCKET];
curl_socket_t data_sock = conn->sock[SECONDARYSOCKET];
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
int result;
timediff_t timeout_ms;
ssize_t nread;
int ftpcode;
*received = FALSE;
timeout_ms = ftp_timeleft_accept(data);
infof(data, "Checking for server connect");
if(timeout_ms < 0) {
/* if a timeout was already reached, bail out */
failf(data, "Accept timeout occurred while waiting server connect");
return CURLE_FTP_ACCEPT_TIMEOUT;
}
/* First check whether there is a cached response from server */
if(pp->cache_size && pp->cache && pp->cache[0] > '3') {
/* Data connection could not be established, let's return */
infof(data, "There is negative response in cache while serv connect");
(void)Curl_GetFTPResponse(data, &nread, &ftpcode);
return CURLE_FTP_ACCEPT_FAILED;
}
result = Curl_socket_check(ctrl_sock, data_sock, CURL_SOCKET_BAD, 0);
/* see if the connection request is already here */
switch(result) {
case -1: /* error */
/* let's die here */
failf(data, "Error while waiting for server connect");
return CURLE_FTP_ACCEPT_FAILED;
case 0: /* Server connect is not received yet */
break; /* loop */
default:
if(result & CURL_CSELECT_IN2) {
infof(data, "Ready to accept data connection from server");
*received = TRUE;
}
else if(result & CURL_CSELECT_IN) {
infof(data, "Ctrl conn has data while waiting for data conn");
(void)Curl_GetFTPResponse(data, &nread, &ftpcode);
if(ftpcode/100 > 3)
return CURLE_FTP_ACCEPT_FAILED;
return CURLE_WEIRD_SERVER_REPLY;
}
break;
} /* switch() */
return CURLE_OK;
}
/***********************************************************************
*
* InitiateTransfer()
*
* After connection from server is accepted this function is called to
* setup transfer parameters and initiate the data transfer.
*
*/
static CURLcode InitiateTransfer(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(conn->bits.ftp_use_data_ssl) {
/* since we only have a plaintext TCP connection here, we must now
* do the TLS stuff */
infof(data, "Doing the SSL/TLS handshake on the data stream");
result = Curl_ssl_connect(data, conn, SECONDARYSOCKET);
if(result)
return result;
}
if(conn->proto.ftpc.state_saved == FTP_STOR) {
/* When we know we're uploading a specified file, we can get the file
size prior to the actual upload. */
Curl_pgrsSetUploadSize(data, data->state.infilesize);
/* set the SO_SNDBUF for the secondary socket for those who need it */
Curl_sndbufset(conn->sock[SECONDARYSOCKET]);
Curl_setup_transfer(data, -1, -1, FALSE, SECONDARYSOCKET);
}
else {
/* FTP download: */
Curl_setup_transfer(data, SECONDARYSOCKET,
conn->proto.ftpc.retr_size_saved, FALSE, -1);
}
conn->proto.ftpc.pp.pending_resp = TRUE; /* expect server response */
state(data, FTP_STOP);
return CURLE_OK;
}
/***********************************************************************
*
* AllowServerConnect()
*
* When we've issue the PORT command, we have told the server to connect to
* us. This function checks whether data connection is established if so it is
* accepted.
*
*/
static CURLcode AllowServerConnect(struct Curl_easy *data, bool *connected)
{
timediff_t timeout_ms;
CURLcode result = CURLE_OK;
*connected = FALSE;
infof(data, "Preparing for accepting server on data port");
/* Save the time we start accepting server connect */
Curl_pgrsTime(data, TIMER_STARTACCEPT);
timeout_ms = ftp_timeleft_accept(data);
if(timeout_ms < 0) {
/* if a timeout was already reached, bail out */
failf(data, "Accept timeout occurred while waiting server connect");
return CURLE_FTP_ACCEPT_TIMEOUT;
}
/* see if the connection request is already here */
result = ReceivedServerConnect(data, connected);
if(result)
return result;
if(*connected) {
result = AcceptServerConnect(data);
if(result)
return result;
result = InitiateTransfer(data);
if(result)
return result;
}
else {
/* Add timeout to multi handle and break out of the loop */
if(*connected == FALSE) {
Curl_expire(data, data->set.accepttimeout > 0 ?
data->set.accepttimeout: DEFAULT_ACCEPT_TIMEOUT, 0);
}
}
return result;
}
/* macro to check for a three-digit ftp status code at the start of the
given string */
#define STATUSCODE(line) (ISDIGIT(line[0]) && ISDIGIT(line[1]) && \
ISDIGIT(line[2]))
/* macro to check for the last line in an FTP server response */
#define LASTLINE(line) (STATUSCODE(line) && (' ' == line[3]))
static bool ftp_endofresp(struct Curl_easy *data, struct connectdata *conn,
char *line, size_t len, int *code)
{
(void)data;
(void)conn;
if((len > 3) && LASTLINE(line)) {
*code = curlx_sltosi(strtol(line, NULL, 10));
return TRUE;
}
return FALSE;
}
static CURLcode ftp_readresp(struct Curl_easy *data,
curl_socket_t sockfd,
struct pingpong *pp,
int *ftpcode, /* return the ftp-code if done */
size_t *size) /* size of the response */
{
int code;
CURLcode result = Curl_pp_readresp(data, sockfd, pp, &code, size);
#ifdef HAVE_GSSAPI
{
struct connectdata *conn = data->conn;
char * const buf = data->state.buffer;
/* handle the security-oriented responses 6xx ***/
switch(code) {
case 631:
code = Curl_sec_read_msg(data, conn, buf, PROT_SAFE);
break;
case 632:
code = Curl_sec_read_msg(data, conn, buf, PROT_PRIVATE);
break;
case 633:
code = Curl_sec_read_msg(data, conn, buf, PROT_CONFIDENTIAL);
break;
default:
/* normal ftp stuff we pass through! */
break;
}
}
#endif
/* store the latest code for later retrieval */
data->info.httpcode = code;
if(ftpcode)
*ftpcode = code;
if(421 == code) {
/* 421 means "Service not available, closing control connection." and FTP
* servers use it to signal that idle session timeout has been exceeded.
* If we ignored the response, it could end up hanging in some cases.
*
* This response code can come at any point so having it treated
* generically is a good idea.
*/
infof(data, "We got a 421 - timeout!");
state(data, FTP_STOP);
return CURLE_OPERATION_TIMEDOUT;
}
return result;
}
/* --- parse FTP server responses --- */
/*
* Curl_GetFTPResponse() is a BLOCKING function to read the full response
* from a server after a command.
*
*/
CURLcode Curl_GetFTPResponse(struct Curl_easy *data,
ssize_t *nreadp, /* return number of bytes read */
int *ftpcode) /* return the ftp-code */
{
/*
* We cannot read just one byte per read() and then go back to select() as
* the OpenSSL read() doesn't grok that properly.
*
* Alas, read as much as possible, split up into lines, use the ending
* line in a response or continue reading. */
struct connectdata *conn = data->conn;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
CURLcode result = CURLE_OK;
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
size_t nread;
int cache_skip = 0;
int value_to_be_ignored = 0;
if(ftpcode)
*ftpcode = 0; /* 0 for errors */
else
/* make the pointer point to something for the rest of this function */
ftpcode = &value_to_be_ignored;
*nreadp = 0;
while(!*ftpcode && !result) {
/* check and reset timeout value every lap */
timediff_t timeout = Curl_pp_state_timeout(data, pp, FALSE);
timediff_t interval_ms;
if(timeout <= 0) {
failf(data, "FTP response timeout");
return CURLE_OPERATION_TIMEDOUT; /* already too little time */
}
interval_ms = 1000; /* use 1 second timeout intervals */
if(timeout < interval_ms)
interval_ms = timeout;
/*
* Since this function is blocking, we need to wait here for input on the
* connection and only then we call the response reading function. We do
* timeout at least every second to make the timeout check run.
*
* A caution here is that the ftp_readresp() function has a cache that may
* contain pieces of a response from the previous invoke and we need to
* make sure we don't just wait for input while there is unhandled data in
* that cache. But also, if the cache is there, we call ftp_readresp() and
* the cache wasn't good enough to continue we must not just busy-loop
* around this function.
*
*/
if(pp->cache && (cache_skip < 2)) {
/*
* There's a cache left since before. We then skipping the wait for
* socket action, unless this is the same cache like the previous round
* as then the cache was deemed not enough to act on and we then need to
* wait for more data anyway.
*/
}
else if(!Curl_conn_data_pending(conn, FIRSTSOCKET)) {
switch(SOCKET_READABLE(sockfd, interval_ms)) {
case -1: /* select() error, stop reading */
failf(data, "FTP response aborted due to select/poll error: %d",
SOCKERRNO);
return CURLE_RECV_ERROR;
case 0: /* timeout */
if(Curl_pgrsUpdate(data))
return CURLE_ABORTED_BY_CALLBACK;
continue; /* just continue in our loop for the timeout duration */
default: /* for clarity */
break;
}
}
result = ftp_readresp(data, sockfd, pp, ftpcode, &nread);
if(result)
break;
if(!nread && pp->cache)
/* bump cache skip counter as on repeated skips we must wait for more
data */
cache_skip++;
else
/* when we got data or there is no cache left, we reset the cache skip
counter */
cache_skip = 0;
*nreadp += nread;
} /* while there's buffer left and loop is requested */
pp->pending_resp = FALSE;
return result;
}
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* for debug purposes */
static const char * const ftp_state_names[]={
"STOP",
"WAIT220",
"AUTH",
"USER",
"PASS",
"ACCT",
"PBSZ",
"PROT",
"CCC",
"PWD",
"SYST",
"NAMEFMT",
"QUOTE",
"RETR_PREQUOTE",
"STOR_PREQUOTE",
"POSTQUOTE",
"CWD",
"MKD",
"MDTM",
"TYPE",
"LIST_TYPE",
"RETR_TYPE",
"STOR_TYPE",
"SIZE",
"RETR_SIZE",
"STOR_SIZE",
"REST",
"RETR_REST",
"PORT",
"PRET",
"PASV",
"LIST",
"RETR",
"STOR",
"QUIT"
};
#endif
/* This is the ONLY way to change FTP state! */
static void _state(struct Curl_easy *data,
ftpstate newstate
#ifdef DEBUGBUILD
, int lineno
#endif
)
{
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
#if defined(DEBUGBUILD)
#if defined(CURL_DISABLE_VERBOSE_STRINGS)
(void) lineno;
#else
if(ftpc->state != newstate)
infof(data, "FTP %p (line %d) state change from %s to %s",
(void *)ftpc, lineno, ftp_state_names[ftpc->state],
ftp_state_names[newstate]);
#endif
#endif
ftpc->state = newstate;
}
static CURLcode ftp_state_user(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = Curl_pp_sendf(data,
&conn->proto.ftpc.pp, "USER %s",
conn->user?conn->user:"");
if(!result) {
state(data, FTP_USER);
data->state.ftp_trying_alternative = FALSE;
}
return result;
}
static CURLcode ftp_state_pwd(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = Curl_pp_sendf(data, &conn->proto.ftpc.pp, "%s", "PWD");
if(!result)
state(data, FTP_PWD);
return result;
}
/* For the FTP "protocol connect" and "doing" phases only */
static int ftp_getsock(struct Curl_easy *data,
struct connectdata *conn,
curl_socket_t *socks)
{
return Curl_pp_getsock(data, &conn->proto.ftpc.pp, socks);
}
/* For the FTP "DO_MORE" phase only */
static int ftp_domore_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks)
{
struct ftp_conn *ftpc = &conn->proto.ftpc;
(void)data;
/* When in DO_MORE state, we could be either waiting for us to connect to a
* remote site, or we could wait for that site to connect to us. Or just
* handle ordinary commands.
*/
if(SOCKS_STATE(conn->cnnct.state))
return Curl_SOCKS_getsock(conn, socks, SECONDARYSOCKET);
if(FTP_STOP == ftpc->state) {
int bits = GETSOCK_READSOCK(0);
bool any = FALSE;
/* if stopped and still in this state, then we're also waiting for a
connect on the secondary connection */
socks[0] = conn->sock[FIRSTSOCKET];
if(!data->set.ftp_use_port) {
int s;
int i;
/* PORT is used to tell the server to connect to us, and during that we
don't do happy eyeballs, but we do if we connect to the server */
for(s = 1, i = 0; i<2; i++) {
if(conn->tempsock[i] != CURL_SOCKET_BAD) {
socks[s] = conn->tempsock[i];
bits |= GETSOCK_WRITESOCK(s++);
any = TRUE;
}
}
}
if(!any) {
socks[1] = conn->sock[SECONDARYSOCKET];
bits |= GETSOCK_WRITESOCK(1) | GETSOCK_READSOCK(1);
}
return bits;
}
return Curl_pp_getsock(data, &conn->proto.ftpc.pp, socks);
}
/* This is called after the FTP_QUOTE state is passed.
ftp_state_cwd() sends the range of CWD commands to the server to change to
the correct directory. It may also need to send MKD commands to create
missing ones, if that option is enabled.
*/
static CURLcode ftp_state_cwd(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct ftp_conn *ftpc = &conn->proto.ftpc;
if(ftpc->cwddone)
/* already done and fine */
result = ftp_state_mdtm(data);
else {
/* FTPFILE_NOCWD with full path: expect ftpc->cwddone! */
DEBUGASSERT((data->set.ftp_filemethod != FTPFILE_NOCWD) ||
!(ftpc->dirdepth && ftpc->dirs[0][0] == '/'));
ftpc->count2 = 0; /* count2 counts failed CWDs */
if(conn->bits.reuse && ftpc->entrypath &&
/* no need to go to entrypath when we have an absolute path */
!(ftpc->dirdepth && ftpc->dirs[0][0] == '/')) {
/* This is a re-used connection. Since we change directory to where the
transfer is taking place, we must first get back to the original dir
where we ended up after login: */
ftpc->cwdcount = 0; /* we count this as the first path, then we add one
for all upcoming ones in the ftp->dirs[] array */
result = Curl_pp_sendf(data, &ftpc->pp, "CWD %s", ftpc->entrypath);
if(!result)
state(data, FTP_CWD);
}
else {
if(ftpc->dirdepth) {
ftpc->cwdcount = 1;
/* issue the first CWD, the rest is sent when the CWD responses are
received... */
result = Curl_pp_sendf(data, &ftpc->pp, "CWD %s",
ftpc->dirs[ftpc->cwdcount -1]);
if(!result)
state(data, FTP_CWD);
}
else {
/* No CWD necessary */
result = ftp_state_mdtm(data);
}
}
}
return result;
}
typedef enum {
EPRT,
PORT,
DONE
} ftpport;
static CURLcode ftp_state_use_port(struct Curl_easy *data,
ftpport fcmd) /* start with this */
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
curl_socket_t portsock = CURL_SOCKET_BAD;
char myhost[MAX_IPADR_LEN + 1] = "";
struct Curl_sockaddr_storage ss;
struct Curl_addrinfo *res, *ai;
curl_socklen_t sslen;
char hbuf[NI_MAXHOST];
struct sockaddr *sa = (struct sockaddr *)&ss;
struct sockaddr_in * const sa4 = (void *)sa;
#ifdef ENABLE_IPV6
struct sockaddr_in6 * const sa6 = (void *)sa;
#endif
static const char mode[][5] = { "EPRT", "PORT" };
enum resolve_t rc;
int error;
char *host = NULL;
char *string_ftpport = data->set.str[STRING_FTPPORT];
struct Curl_dns_entry *h = NULL;
unsigned short port_min = 0;
unsigned short port_max = 0;
unsigned short port;
bool possibly_non_local = TRUE;
char buffer[STRERROR_LEN];
char *addr = NULL;
/* Step 1, figure out what is requested,
* accepted format :
* (ipv4|ipv6|domain|interface)?(:port(-range)?)?
*/
if(data->set.str[STRING_FTPPORT] &&
(strlen(data->set.str[STRING_FTPPORT]) > 1)) {
#ifdef ENABLE_IPV6
size_t addrlen = INET6_ADDRSTRLEN > strlen(string_ftpport) ?
INET6_ADDRSTRLEN : strlen(string_ftpport);
#else
size_t addrlen = INET_ADDRSTRLEN > strlen(string_ftpport) ?
INET_ADDRSTRLEN : strlen(string_ftpport);
#endif
char *ip_start = string_ftpport;
char *ip_end = NULL;
char *port_start = NULL;
char *port_sep = NULL;
addr = calloc(addrlen + 1, 1);
if(!addr)
return CURLE_OUT_OF_MEMORY;
#ifdef ENABLE_IPV6
if(*string_ftpport == '[') {
/* [ipv6]:port(-range) */
ip_start = string_ftpport + 1;
ip_end = strchr(string_ftpport, ']');
if(ip_end)
strncpy(addr, ip_start, ip_end - ip_start);
}
else
#endif
if(*string_ftpport == ':') {
/* :port */
ip_end = string_ftpport;
}
else {
ip_end = strchr(string_ftpport, ':');
if(ip_end) {
/* either ipv6 or (ipv4|domain|interface):port(-range) */
#ifdef ENABLE_IPV6
if(Curl_inet_pton(AF_INET6, string_ftpport, sa6) == 1) {
/* ipv6 */
port_min = port_max = 0;
strcpy(addr, string_ftpport);
ip_end = NULL; /* this got no port ! */
}
else
#endif
/* (ipv4|domain|interface):port(-range) */
strncpy(addr, string_ftpport, ip_end - ip_start);
}
else
/* ipv4|interface */
strcpy(addr, string_ftpport);
}
/* parse the port */
if(ip_end != NULL) {
port_start = strchr(ip_end, ':');
if(port_start) {
port_min = curlx_ultous(strtoul(port_start + 1, NULL, 10));
port_sep = strchr(port_start, '-');
if(port_sep) {
port_max = curlx_ultous(strtoul(port_sep + 1, NULL, 10));
}
else
port_max = port_min;
}
}
/* correct errors like:
* :1234-1230
* :-4711, in this case port_min is (unsigned)-1,
* therefore port_min > port_max for all cases
* but port_max = (unsigned)-1
*/
if(port_min > port_max)
port_min = port_max = 0;
if(*addr != '\0') {
/* attempt to get the address of the given interface name */
switch(Curl_if2ip(conn->ip_addr->ai_family,
Curl_ipv6_scope(conn->ip_addr->ai_addr),
conn->scope_id, addr, hbuf, sizeof(hbuf))) {
case IF2IP_NOT_FOUND:
/* not an interface, use the given string as host name instead */
host = addr;
break;
case IF2IP_AF_NOT_SUPPORTED:
return CURLE_FTP_PORT_FAILED;
case IF2IP_FOUND:
host = hbuf; /* use the hbuf for host name */
}
}
else
/* there was only a port(-range) given, default the host */
host = NULL;
} /* data->set.ftpport */
if(!host) {
const char *r;
/* not an interface and not a host name, get default by extracting
the IP from the control connection */
sslen = sizeof(ss);
if(getsockname(conn->sock[FIRSTSOCKET], sa, &sslen)) {
failf(data, "getsockname() failed: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
free(addr);
return CURLE_FTP_PORT_FAILED;
}
switch(sa->sa_family) {
#ifdef ENABLE_IPV6
case AF_INET6:
r = Curl_inet_ntop(sa->sa_family, &sa6->sin6_addr, hbuf, sizeof(hbuf));
break;
#endif
default:
r = Curl_inet_ntop(sa->sa_family, &sa4->sin_addr, hbuf, sizeof(hbuf));
break;
}
if(!r)
return CURLE_FTP_PORT_FAILED;
host = hbuf; /* use this host name */
possibly_non_local = FALSE; /* we know it is local now */
}
/* resolv ip/host to ip */
rc = Curl_resolv(data, host, 0, FALSE, &h);
if(rc == CURLRESOLV_PENDING)
(void)Curl_resolver_wait_resolv(data, &h);
if(h) {
res = h->addr;
/* when we return from this function, we can forget about this entry
to we can unlock it now already */
Curl_resolv_unlock(data, h);
} /* (h) */
else
res = NULL; /* failure! */
if(!res) {
failf(data, "failed to resolve the address provided to PORT: %s", host);
free(addr);
return CURLE_FTP_PORT_FAILED;
}
free(addr);
host = NULL;
/* step 2, create a socket for the requested address */
portsock = CURL_SOCKET_BAD;
error = 0;
for(ai = res; ai; ai = ai->ai_next) {
result = Curl_socket(data, ai, NULL, &portsock);
if(result) {
error = SOCKERRNO;
continue;
}
break;
}
if(!ai) {
failf(data, "socket failure: %s",
Curl_strerror(error, buffer, sizeof(buffer)));
return CURLE_FTP_PORT_FAILED;
}
/* step 3, bind to a suitable local address */
memcpy(sa, ai->ai_addr, ai->ai_addrlen);
sslen = ai->ai_addrlen;
for(port = port_min; port <= port_max;) {
if(sa->sa_family == AF_INET)
sa4->sin_port = htons(port);
#ifdef ENABLE_IPV6
else
sa6->sin6_port = htons(port);
#endif
/* Try binding the given address. */
if(bind(portsock, sa, sslen) ) {
/* It failed. */
error = SOCKERRNO;
if(possibly_non_local && (error == EADDRNOTAVAIL)) {
/* The requested bind address is not local. Use the address used for
* the control connection instead and restart the port loop
*/
infof(data, "bind(port=%hu) on non-local address failed: %s", port,
Curl_strerror(error, buffer, sizeof(buffer)));
sslen = sizeof(ss);
if(getsockname(conn->sock[FIRSTSOCKET], sa, &sslen)) {
failf(data, "getsockname() failed: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
Curl_closesocket(data, conn, portsock);
return CURLE_FTP_PORT_FAILED;
}
port = port_min;
possibly_non_local = FALSE; /* don't try this again */
continue;
}
if(error != EADDRINUSE && error != EACCES) {
failf(data, "bind(port=%hu) failed: %s", port,
Curl_strerror(error, buffer, sizeof(buffer)));
Curl_closesocket(data, conn, portsock);
return CURLE_FTP_PORT_FAILED;
}
}
else
break;
port++;
}
/* maybe all ports were in use already*/
if(port > port_max) {
failf(data, "bind() failed, we ran out of ports!");
Curl_closesocket(data, conn, portsock);
return CURLE_FTP_PORT_FAILED;
}
/* get the name again after the bind() so that we can extract the
port number it uses now */
sslen = sizeof(ss);
if(getsockname(portsock, (struct sockaddr *)sa, &sslen)) {
failf(data, "getsockname() failed: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
Curl_closesocket(data, conn, portsock);
return CURLE_FTP_PORT_FAILED;
}
/* step 4, listen on the socket */
if(listen(portsock, 1)) {
failf(data, "socket failure: %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
Curl_closesocket(data, conn, portsock);
return CURLE_FTP_PORT_FAILED;
}
/* step 5, send the proper FTP command */
/* get a plain printable version of the numerical address to work with
below */
Curl_printable_address(ai, myhost, sizeof(myhost));
#ifdef ENABLE_IPV6
if(!conn->bits.ftp_use_eprt && conn->bits.ipv6)
/* EPRT is disabled but we are connected to a IPv6 host, so we ignore the
request and enable EPRT again! */
conn->bits.ftp_use_eprt = TRUE;
#endif
for(; fcmd != DONE; fcmd++) {
if(!conn->bits.ftp_use_eprt && (EPRT == fcmd))
/* if disabled, goto next */
continue;
if((PORT == fcmd) && sa->sa_family != AF_INET)
/* PORT is IPv4 only */
continue;
switch(sa->sa_family) {
case AF_INET:
port = ntohs(sa4->sin_port);
break;
#ifdef ENABLE_IPV6
case AF_INET6:
port = ntohs(sa6->sin6_port);
break;
#endif
default:
continue; /* might as well skip this */
}
if(EPRT == fcmd) {
/*
* Two fine examples from RFC2428;
*
* EPRT |1|132.235.1.2|6275|
*
* EPRT |2|1080::8:800:200C:417A|5282|
*/
result = Curl_pp_sendf(data, &ftpc->pp, "%s |%d|%s|%hu|", mode[fcmd],
sa->sa_family == AF_INET?1:2,
myhost, port);
if(result) {
failf(data, "Failure sending EPRT command: %s",
curl_easy_strerror(result));
Curl_closesocket(data, conn, portsock);
/* don't retry using PORT */
ftpc->count1 = PORT;
/* bail out */
state(data, FTP_STOP);
return result;
}
break;
}
if(PORT == fcmd) {
/* large enough for [IP address],[num],[num] */
char target[sizeof(myhost) + 20];
char *source = myhost;
char *dest = target;
/* translate x.x.x.x to x,x,x,x */
while(source && *source) {
if(*source == '.')
*dest = ',';
else
*dest = *source;
dest++;
source++;
}
*dest = 0;
msnprintf(dest, 20, ",%d,%d", (int)(port>>8), (int)(port&0xff));
result = Curl_pp_sendf(data, &ftpc->pp, "%s %s", mode[fcmd], target);
if(result) {
failf(data, "Failure sending PORT command: %s",
curl_easy_strerror(result));
Curl_closesocket(data, conn, portsock);
/* bail out */
state(data, FTP_STOP);
return result;
}
break;
}
}
/* store which command was sent */
ftpc->count1 = fcmd;
close_secondarysocket(data, conn);
/* we set the secondary socket variable to this for now, it is only so that
the cleanup function will close it in case we fail before the true
secondary stuff is made */
conn->sock[SECONDARYSOCKET] = portsock;
/* this tcpconnect assignment below is a hackish work-around to make the
multi interface with active FTP work - as it will not wait for a
(passive) connect in Curl_is_connected().
The *proper* fix is to make sure that the active connection from the
server is done in a non-blocking way. Currently, it is still BLOCKING.
*/
conn->bits.tcpconnect[SECONDARYSOCKET] = TRUE;
state(data, FTP_PORT);
return result;
}
static CURLcode ftp_state_use_pasv(struct Curl_easy *data,
struct connectdata *conn)
{
struct ftp_conn *ftpc = &conn->proto.ftpc;
CURLcode result = CURLE_OK;
/*
Here's the executive summary on what to do:
PASV is RFC959, expect:
227 Entering Passive Mode (a1,a2,a3,a4,p1,p2)
LPSV is RFC1639, expect:
228 Entering Long Passive Mode (4,4,a1,a2,a3,a4,2,p1,p2)
EPSV is RFC2428, expect:
229 Entering Extended Passive Mode (|||port|)
*/
static const char mode[][5] = { "EPSV", "PASV" };
int modeoff;
#ifdef PF_INET6
if(!conn->bits.ftp_use_epsv && conn->bits.ipv6)
/* EPSV is disabled but we are connected to a IPv6 host, so we ignore the
request and enable EPSV again! */
conn->bits.ftp_use_epsv = TRUE;
#endif
modeoff = conn->bits.ftp_use_epsv?0:1;
result = Curl_pp_sendf(data, &ftpc->pp, "%s", mode[modeoff]);
if(!result) {
ftpc->count1 = modeoff;
state(data, FTP_PASV);
infof(data, "Connect data stream passively");
}
return result;
}
/*
* ftp_state_prepare_transfer() starts PORT, PASV or PRET etc.
*
* REST is the last command in the chain of commands when a "head"-like
* request is made. Thus, if an actual transfer is to be made this is where we
* take off for real.
*/
static CURLcode ftp_state_prepare_transfer(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
if(ftp->transfer != PPTRANSFER_BODY) {
/* doesn't transfer any data */
/* still possibly do PRE QUOTE jobs */
state(data, FTP_RETR_PREQUOTE);
result = ftp_state_quote(data, TRUE, FTP_RETR_PREQUOTE);
}
else if(data->set.ftp_use_port) {
/* We have chosen to use the PORT (or similar) command */
result = ftp_state_use_port(data, EPRT);
}
else {
/* We have chosen (this is default) to use the PASV (or similar) command */
if(data->set.ftp_use_pret) {
/* The user has requested that we send a PRET command
to prepare the server for the upcoming PASV */
struct ftp_conn *ftpc = &conn->proto.ftpc;
if(!conn->proto.ftpc.file)
result = Curl_pp_sendf(data, &ftpc->pp, "PRET %s",
data->set.str[STRING_CUSTOMREQUEST]?
data->set.str[STRING_CUSTOMREQUEST]:
(data->state.list_only?"NLST":"LIST"));
else if(data->set.upload)
result = Curl_pp_sendf(data, &ftpc->pp, "PRET STOR %s",
conn->proto.ftpc.file);
else
result = Curl_pp_sendf(data, &ftpc->pp, "PRET RETR %s",
conn->proto.ftpc.file);
if(!result)
state(data, FTP_PRET);
}
else
result = ftp_state_use_pasv(data, conn);
}
return result;
}
static CURLcode ftp_state_rest(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct ftp_conn *ftpc = &conn->proto.ftpc;
if((ftp->transfer != PPTRANSFER_BODY) && ftpc->file) {
/* if a "head"-like request is being made (on a file) */
/* Determine if server can respond to REST command and therefore
whether it supports range */
result = Curl_pp_sendf(data, &ftpc->pp, "REST %d", 0);
if(!result)
state(data, FTP_REST);
}
else
result = ftp_state_prepare_transfer(data);
return result;
}
static CURLcode ftp_state_size(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct ftp_conn *ftpc = &conn->proto.ftpc;
if((ftp->transfer == PPTRANSFER_INFO) && ftpc->file) {
/* if a "head"-like request is being made (on a file) */
/* we know ftpc->file is a valid pointer to a file name */
result = Curl_pp_sendf(data, &ftpc->pp, "SIZE %s", ftpc->file);
if(!result)
state(data, FTP_SIZE);
}
else
result = ftp_state_rest(data, conn);
return result;
}
static CURLcode ftp_state_list(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
/* If this output is to be machine-parsed, the NLST command might be better
to use, since the LIST command output is not specified or standard in any
way. It has turned out that the NLST list output is not the same on all
servers either... */
/*
if FTPFILE_NOCWD was specified, we should add the path
as argument for the LIST / NLST / or custom command.
Whether the server will support this, is uncertain.
The other ftp_filemethods will CWD into dir/dir/ first and
then just do LIST (in that case: nothing to do here)
*/
char *lstArg = NULL;
char *cmd;
if((data->set.ftp_filemethod == FTPFILE_NOCWD) && ftp->path) {
/* url-decode before evaluation: e.g. paths starting/ending with %2f */
const char *slashPos = NULL;
char *rawPath = NULL;
result = Curl_urldecode(data, ftp->path, 0, &rawPath, NULL, REJECT_CTRL);
if(result)
return result;
slashPos = strrchr(rawPath, '/');
if(slashPos) {
/* chop off the file part if format is dir/file otherwise remove
the trailing slash for dir/dir/ except for absolute path / */
size_t n = slashPos - rawPath;
if(n == 0)
++n;
lstArg = rawPath;
lstArg[n] = '\0';
}
else
free(rawPath);
}
cmd = aprintf("%s%s%s",
data->set.str[STRING_CUSTOMREQUEST]?
data->set.str[STRING_CUSTOMREQUEST]:
(data->state.list_only?"NLST":"LIST"),
lstArg? " ": "",
lstArg? lstArg: "");
free(lstArg);
if(!cmd)
return CURLE_OUT_OF_MEMORY;
result = Curl_pp_sendf(data, &conn->proto.ftpc.pp, "%s", cmd);
free(cmd);
if(!result)
state(data, FTP_LIST);
return result;
}
static CURLcode ftp_state_retr_prequote(struct Curl_easy *data)
{
/* We've sent the TYPE, now we must send the list of prequote strings */
return ftp_state_quote(data, TRUE, FTP_RETR_PREQUOTE);
}
static CURLcode ftp_state_stor_prequote(struct Curl_easy *data)
{
/* We've sent the TYPE, now we must send the list of prequote strings */
return ftp_state_quote(data, TRUE, FTP_STOR_PREQUOTE);
}
static CURLcode ftp_state_type(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
/* If we have selected NOBODY and HEADER, it means that we only want file
information. Which in FTP can't be much more than the file size and
date. */
if(data->set.opt_no_body && ftpc->file &&
ftp_need_type(conn, data->state.prefer_ascii)) {
/* The SIZE command is _not_ RFC 959 specified, and therefore many servers
may not support it! It is however the only way we have to get a file's
size! */
ftp->transfer = PPTRANSFER_INFO;
/* this means no actual transfer will be made */
/* Some servers return different sizes for different modes, and thus we
must set the proper type before we check the size */
result = ftp_nb_type(data, conn, data->state.prefer_ascii, FTP_TYPE);
if(result)
return result;
}
else
result = ftp_state_size(data, conn);
return result;
}
/* This is called after the CWD commands have been done in the beginning of
the DO phase */
static CURLcode ftp_state_mdtm(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
/* Requested time of file or time-depended transfer? */
if((data->set.get_filetime || data->set.timecondition) && ftpc->file) {
/* we have requested to get the modified-time of the file, this is a white
spot as the MDTM is not mentioned in RFC959 */
result = Curl_pp_sendf(data, &ftpc->pp, "MDTM %s", ftpc->file);
if(!result)
state(data, FTP_MDTM);
}
else
result = ftp_state_type(data);
return result;
}
/* This is called after the TYPE and possible quote commands have been sent */
static CURLcode ftp_state_ul_setup(struct Curl_easy *data,
bool sizechecked)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct FTP *ftp = data->req.p.ftp;
struct ftp_conn *ftpc = &conn->proto.ftpc;
bool append = data->set.remote_append;
if((data->state.resume_from && !sizechecked) ||
((data->state.resume_from > 0) && sizechecked)) {
/* we're about to continue the uploading of a file */
/* 1. get already existing file's size. We use the SIZE command for this
which may not exist in the server! The SIZE command is not in
RFC959. */
/* 2. This used to set REST. But since we can do append, we
don't another ftp command. We just skip the source file
offset and then we APPEND the rest on the file instead */
/* 3. pass file-size number of bytes in the source file */
/* 4. lower the infilesize counter */
/* => transfer as usual */
int seekerr = CURL_SEEKFUNC_OK;
if(data->state.resume_from < 0) {
/* Got no given size to start from, figure it out */
result = Curl_pp_sendf(data, &ftpc->pp, "SIZE %s", ftpc->file);
if(!result)
state(data, FTP_STOR_SIZE);
return result;
}
/* enable append */
append = TRUE;
/* Let's read off the proper amount of bytes from the input. */
if(conn->seek_func) {
Curl_set_in_callback(data, true);
seekerr = conn->seek_func(conn->seek_client, data->state.resume_from,
SEEK_SET);
Curl_set_in_callback(data, false);
}
if(seekerr != CURL_SEEKFUNC_OK) {
curl_off_t passed = 0;
if(seekerr != CURL_SEEKFUNC_CANTSEEK) {
failf(data, "Could not seek stream");
return CURLE_FTP_COULDNT_USE_REST;
}
/* seekerr == CURL_SEEKFUNC_CANTSEEK (can't seek to offset) */
do {
size_t readthisamountnow =
(data->state.resume_from - passed > data->set.buffer_size) ?
(size_t)data->set.buffer_size :
curlx_sotouz(data->state.resume_from - passed);
size_t actuallyread =
data->state.fread_func(data->state.buffer, 1, readthisamountnow,
data->state.in);
passed += actuallyread;
if((actuallyread == 0) || (actuallyread > readthisamountnow)) {
/* this checks for greater-than only to make sure that the
CURL_READFUNC_ABORT return code still aborts */
failf(data, "Failed to read data");
return CURLE_FTP_COULDNT_USE_REST;
}
} while(passed < data->state.resume_from);
}
/* now, decrease the size of the read */
if(data->state.infilesize>0) {
data->state.infilesize -= data->state.resume_from;
if(data->state.infilesize <= 0) {
infof(data, "File already completely uploaded");
/* no data to transfer */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
/* Set ->transfer so that we won't get any error in
* ftp_done() because we didn't transfer anything! */
ftp->transfer = PPTRANSFER_NONE;
state(data, FTP_STOP);
return CURLE_OK;
}
}
/* we've passed, proceed as normal */
} /* resume_from */
result = Curl_pp_sendf(data, &ftpc->pp, append?"APPE %s":"STOR %s",
ftpc->file);
if(!result)
state(data, FTP_STOR);
return result;
}
static CURLcode ftp_state_quote(struct Curl_easy *data,
bool init,
ftpstate instate)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
bool quote = FALSE;
struct curl_slist *item;
switch(instate) {
case FTP_QUOTE:
default:
item = data->set.quote;
break;
case FTP_RETR_PREQUOTE:
case FTP_STOR_PREQUOTE:
item = data->set.prequote;
break;
case FTP_POSTQUOTE:
item = data->set.postquote;
break;
}
/*
* This state uses:
* 'count1' to iterate over the commands to send
* 'count2' to store whether to allow commands to fail
*/
if(init)
ftpc->count1 = 0;
else
ftpc->count1++;
if(item) {
int i = 0;
/* Skip count1 items in the linked list */
while((i< ftpc->count1) && item) {
item = item->next;
i++;
}
if(item) {
char *cmd = item->data;
if(cmd[0] == '*') {
cmd++;
ftpc->count2 = 1; /* the sent command is allowed to fail */
}
else
ftpc->count2 = 0; /* failure means cancel operation */
result = Curl_pp_sendf(data, &ftpc->pp, "%s", cmd);
if(result)
return result;
state(data, instate);
quote = TRUE;
}
}
if(!quote) {
/* No more quote to send, continue to ... */
switch(instate) {
case FTP_QUOTE:
default:
result = ftp_state_cwd(data, conn);
break;
case FTP_RETR_PREQUOTE:
if(ftp->transfer != PPTRANSFER_BODY)
state(data, FTP_STOP);
else {
if(ftpc->known_filesize != -1) {
Curl_pgrsSetDownloadSize(data, ftpc->known_filesize);
result = ftp_state_retr(data, ftpc->known_filesize);
}
else {
if(data->set.ignorecl || data->state.prefer_ascii) {
/* 'ignorecl' is used to support download of growing files. It
prevents the state machine from requesting the file size from
the server. With an unknown file size the download continues
until the server terminates it, otherwise the client stops if
the received byte count exceeds the reported file size. Set
option CURLOPT_IGNORE_CONTENT_LENGTH to 1 to enable this
behavior.
In addition: asking for the size for 'TYPE A' transfers is not
constructive since servers don't report the converted size. So
skip it.
*/
result = Curl_pp_sendf(data, &ftpc->pp, "RETR %s", ftpc->file);
if(!result)
state(data, FTP_RETR);
}
else {
result = Curl_pp_sendf(data, &ftpc->pp, "SIZE %s", ftpc->file);
if(!result)
state(data, FTP_RETR_SIZE);
}
}
}
break;
case FTP_STOR_PREQUOTE:
result = ftp_state_ul_setup(data, FALSE);
break;
case FTP_POSTQUOTE:
break;
}
}
return result;
}
/* called from ftp_state_pasv_resp to switch to PASV in case of EPSV
problems */
static CURLcode ftp_epsv_disable(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
if(conn->bits.ipv6
#ifndef CURL_DISABLE_PROXY
&& !(conn->bits.tunnel_proxy || conn->bits.socksproxy)
#endif
) {
/* We can't disable EPSV when doing IPv6, so this is instead a fail */
failf(data, "Failed EPSV attempt, exiting");
return CURLE_WEIRD_SERVER_REPLY;
}
infof(data, "Failed EPSV attempt. Disabling EPSV");
/* disable it for next transfer */
conn->bits.ftp_use_epsv = FALSE;
data->state.errorbuf = FALSE; /* allow error message to get
rewritten */
result = Curl_pp_sendf(data, &conn->proto.ftpc.pp, "%s", "PASV");
if(!result) {
conn->proto.ftpc.count1++;
/* remain in/go to the FTP_PASV state */
state(data, FTP_PASV);
}
return result;
}
static char *control_address(struct connectdata *conn)
{
/* Returns the control connection IP address.
If a proxy tunnel is used, returns the original host name instead, because
the effective control connection address is the proxy address,
not the ftp host. */
#ifndef CURL_DISABLE_PROXY
if(conn->bits.tunnel_proxy || conn->bits.socksproxy)
return conn->host.name;
#endif
return conn->primary_ip;
}
static CURLcode ftp_state_pasv_resp(struct Curl_easy *data,
int ftpcode)
{
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
CURLcode result;
struct Curl_dns_entry *addr = NULL;
enum resolve_t rc;
unsigned short connectport; /* the local port connect() should use! */
char *str = &data->state.buffer[4]; /* start on the first letter */
/* if we come here again, make sure the former name is cleared */
Curl_safefree(ftpc->newhost);
if((ftpc->count1 == 0) &&
(ftpcode == 229)) {
/* positive EPSV response */
char *ptr = strchr(str, '(');
if(ptr) {
unsigned int num;
char separator[4];
ptr++;
if(5 == sscanf(ptr, "%c%c%c%u%c",
&separator[0],
&separator[1],
&separator[2],
&num,
&separator[3])) {
const char sep1 = separator[0];
int i;
/* The four separators should be identical, or else this is an oddly
formatted reply and we bail out immediately. */
for(i = 1; i<4; i++) {
if(separator[i] != sep1) {
ptr = NULL; /* set to NULL to signal error */
break;
}
}
if(num > 0xffff) {
failf(data, "Illegal port number in EPSV reply");
return CURLE_FTP_WEIRD_PASV_REPLY;
}
if(ptr) {
ftpc->newport = (unsigned short)(num & 0xffff);
ftpc->newhost = strdup(control_address(conn));
if(!ftpc->newhost)
return CURLE_OUT_OF_MEMORY;
}
}
else
ptr = NULL;
}
if(!ptr) {
failf(data, "Weirdly formatted EPSV reply");
return CURLE_FTP_WEIRD_PASV_REPLY;
}
}
else if((ftpc->count1 == 1) &&
(ftpcode == 227)) {
/* positive PASV response */
unsigned int ip[4] = {0, 0, 0, 0};
unsigned int port[2] = {0, 0};
/*
* Scan for a sequence of six comma-separated numbers and use them as
* IP+port indicators.
*
* Found reply-strings include:
* "227 Entering Passive Mode (127,0,0,1,4,51)"
* "227 Data transfer will passively listen to 127,0,0,1,4,51"
* "227 Entering passive mode. 127,0,0,1,4,51"
*/
while(*str) {
if(6 == sscanf(str, "%u,%u,%u,%u,%u,%u",
&ip[0], &ip[1], &ip[2], &ip[3],
&port[0], &port[1]))
break;
str++;
}
if(!*str || (ip[0] > 255) || (ip[1] > 255) || (ip[2] > 255) ||
(ip[3] > 255) || (port[0] > 255) || (port[1] > 255) ) {
failf(data, "Couldn't interpret the 227-response");
return CURLE_FTP_WEIRD_227_FORMAT;
}
/* we got OK from server */
if(data->set.ftp_skip_ip) {
/* told to ignore the remotely given IP but instead use the host we used
for the control connection */
infof(data, "Skip %u.%u.%u.%u for data connection, re-use %s instead",
ip[0], ip[1], ip[2], ip[3],
conn->host.name);
ftpc->newhost = strdup(control_address(conn));
}
else
ftpc->newhost = aprintf("%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]);
if(!ftpc->newhost)
return CURLE_OUT_OF_MEMORY;
ftpc->newport = (unsigned short)(((port[0]<<8) + port[1]) & 0xffff);
}
else if(ftpc->count1 == 0) {
/* EPSV failed, move on to PASV */
return ftp_epsv_disable(data, conn);
}
else {
failf(data, "Bad PASV/EPSV response: %03d", ftpcode);
return CURLE_FTP_WEIRD_PASV_REPLY;
}
#ifndef CURL_DISABLE_PROXY
if(conn->bits.proxy) {
/*
* This connection uses a proxy and we need to connect to the proxy again
* here. We don't want to rely on a former host lookup that might've
* expired now, instead we remake the lookup here and now!
*/
const char * const host_name = conn->bits.socksproxy ?
conn->socks_proxy.host.name : conn->http_proxy.host.name;
rc = Curl_resolv(data, host_name, (int)conn->port, FALSE, &addr);
if(rc == CURLRESOLV_PENDING)
/* BLOCKING, ignores the return code but 'addr' will be NULL in
case of failure */
(void)Curl_resolver_wait_resolv(data, &addr);
connectport =
(unsigned short)conn->port; /* we connect to the proxy's port */
if(!addr) {
failf(data, "Can't resolve proxy host %s:%hu", host_name, connectport);
return CURLE_COULDNT_RESOLVE_PROXY;
}
}
else
#endif
{
/* normal, direct, ftp connection */
DEBUGASSERT(ftpc->newhost);
/* postponed address resolution in case of tcp fastopen */
if(conn->bits.tcp_fastopen && !conn->bits.reuse && !ftpc->newhost[0]) {
Curl_conninfo_remote(data, conn, conn->sock[FIRSTSOCKET]);
Curl_safefree(ftpc->newhost);
ftpc->newhost = strdup(control_address(conn));
if(!ftpc->newhost)
return CURLE_OUT_OF_MEMORY;
}
rc = Curl_resolv(data, ftpc->newhost, ftpc->newport, FALSE, &addr);
if(rc == CURLRESOLV_PENDING)
/* BLOCKING */
(void)Curl_resolver_wait_resolv(data, &addr);
connectport = ftpc->newport; /* we connect to the remote port */
if(!addr) {
failf(data, "Can't resolve new host %s:%hu", ftpc->newhost, connectport);
return CURLE_FTP_CANT_GET_HOST;
}
}
conn->bits.tcpconnect[SECONDARYSOCKET] = FALSE;
result = Curl_connecthost(data, conn, addr);
if(result) {
Curl_resolv_unlock(data, addr); /* we're done using this address */
if(ftpc->count1 == 0 && ftpcode == 229)
return ftp_epsv_disable(data, conn);
return result;
}
/*
* When this is used from the multi interface, this might've returned with
* the 'connected' set to FALSE and thus we are now awaiting a non-blocking
* connect to connect.
*/
if(data->set.verbose)
/* this just dumps information about this second connection */
ftp_pasv_verbose(data, addr->addr, ftpc->newhost, connectport);
Curl_resolv_unlock(data, addr); /* we're done using this address */
Curl_safefree(conn->secondaryhostname);
conn->secondary_port = ftpc->newport;
conn->secondaryhostname = strdup(ftpc->newhost);
if(!conn->secondaryhostname)
return CURLE_OUT_OF_MEMORY;
conn->bits.do_more = TRUE;
state(data, FTP_STOP); /* this phase is completed */
return result;
}
static CURLcode ftp_state_port_resp(struct Curl_easy *data,
int ftpcode)
{
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
ftpport fcmd = (ftpport)ftpc->count1;
CURLcode result = CURLE_OK;
/* The FTP spec tells a positive response should have code 200.
Be more permissive here to tolerate deviant servers. */
if(ftpcode / 100 != 2) {
/* the command failed */
if(EPRT == fcmd) {
infof(data, "disabling EPRT usage");
conn->bits.ftp_use_eprt = FALSE;
}
fcmd++;
if(fcmd == DONE) {
failf(data, "Failed to do PORT");
result = CURLE_FTP_PORT_FAILED;
}
else
/* try next */
result = ftp_state_use_port(data, fcmd);
}
else {
infof(data, "Connect data stream actively");
state(data, FTP_STOP); /* end of DO phase */
result = ftp_dophase_done(data, FALSE);
}
return result;
}
static CURLcode ftp_state_mdtm_resp(struct Curl_easy *data,
int ftpcode)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
switch(ftpcode) {
case 213:
{
/* we got a time. Format should be: "YYYYMMDDHHMMSS[.sss]" where the
last .sss part is optional and means fractions of a second */
int year, month, day, hour, minute, second;
if(6 == sscanf(&data->state.buffer[4], "%04d%02d%02d%02d%02d%02d",
&year, &month, &day, &hour, &minute, &second)) {
/* we have a time, reformat it */
char timebuf[24];
msnprintf(timebuf, sizeof(timebuf),
"%04d%02d%02d %02d:%02d:%02d GMT",
year, month, day, hour, minute, second);
/* now, convert this into a time() value: */
data->info.filetime = Curl_getdate_capped(timebuf);
}
#ifdef CURL_FTP_HTTPSTYLE_HEAD
/* If we asked for a time of the file and we actually got one as well,
we "emulate" a HTTP-style header in our output. */
if(data->set.opt_no_body &&
ftpc->file &&
data->set.get_filetime &&
(data->info.filetime >= 0) ) {
char headerbuf[128];
int headerbuflen;
time_t filetime = data->info.filetime;
struct tm buffer;
const struct tm *tm = &buffer;
result = Curl_gmtime(filetime, &buffer);
if(result)
return result;
/* format: "Tue, 15 Nov 1994 12:45:26" */
headerbuflen = msnprintf(headerbuf, sizeof(headerbuf),
"Last-Modified: %s, %02d %s %4d %02d:%02d:%02d GMT\r\n",
Curl_wkday[tm->tm_wday?tm->tm_wday-1:6],
tm->tm_mday,
Curl_month[tm->tm_mon],
tm->tm_year + 1900,
tm->tm_hour,
tm->tm_min,
tm->tm_sec);
result = Curl_client_write(data, CLIENTWRITE_BOTH, headerbuf,
headerbuflen);
if(result)
return result;
} /* end of a ridiculous amount of conditionals */
#endif
}
break;
default:
infof(data, "unsupported MDTM reply format");
break;
case 550: /* "No such file or directory" */
failf(data, "Given file does not exist");
result = CURLE_REMOTE_FILE_NOT_FOUND;
break;
}
if(data->set.timecondition) {
if((data->info.filetime > 0) && (data->set.timevalue > 0)) {
switch(data->set.timecondition) {
case CURL_TIMECOND_IFMODSINCE:
default:
if(data->info.filetime <= data->set.timevalue) {
infof(data, "The requested document is not new enough");
ftp->transfer = PPTRANSFER_NONE; /* mark to not transfer data */
data->info.timecond = TRUE;
state(data, FTP_STOP);
return CURLE_OK;
}
break;
case CURL_TIMECOND_IFUNMODSINCE:
if(data->info.filetime > data->set.timevalue) {
infof(data, "The requested document is not old enough");
ftp->transfer = PPTRANSFER_NONE; /* mark to not transfer data */
data->info.timecond = TRUE;
state(data, FTP_STOP);
return CURLE_OK;
}
break;
} /* switch */
}
else {
infof(data, "Skipping time comparison");
}
}
if(!result)
result = ftp_state_type(data);
return result;
}
static CURLcode ftp_state_type_resp(struct Curl_easy *data,
int ftpcode,
ftpstate instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(ftpcode/100 != 2) {
/* "sasserftpd" and "(u)r(x)bot ftpd" both responds with 226 after a
successful 'TYPE I'. While that is not as RFC959 says, it is still a
positive response code and we allow that. */
failf(data, "Couldn't set desired mode");
return CURLE_FTP_COULDNT_SET_TYPE;
}
if(ftpcode != 200)
infof(data, "Got a %03d response code instead of the assumed 200",
ftpcode);
if(instate == FTP_TYPE)
result = ftp_state_size(data, conn);
else if(instate == FTP_LIST_TYPE)
result = ftp_state_list(data);
else if(instate == FTP_RETR_TYPE)
result = ftp_state_retr_prequote(data);
else if(instate == FTP_STOR_TYPE)
result = ftp_state_stor_prequote(data);
return result;
}
static CURLcode ftp_state_retr(struct Curl_easy *data,
curl_off_t filesize)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
if(data->set.max_filesize && (filesize > data->set.max_filesize)) {
failf(data, "Maximum file size exceeded");
return CURLE_FILESIZE_EXCEEDED;
}
ftp->downloadsize = filesize;
if(data->state.resume_from) {
/* We always (attempt to) get the size of downloads, so it is done before
this even when not doing resumes. */
if(filesize == -1) {
infof(data, "ftp server doesn't support SIZE");
/* We couldn't get the size and therefore we can't know if there really
is a part of the file left to get, although the server will just
close the connection when we start the connection so it won't cause
us any harm, just not make us exit as nicely. */
}
else {
/* We got a file size report, so we check that there actually is a
part of the file left to get, or else we go home. */
if(data->state.resume_from< 0) {
/* We're supposed to download the last abs(from) bytes */
if(filesize < -data->state.resume_from) {
failf(data, "Offset (%" CURL_FORMAT_CURL_OFF_T
") was beyond file size (%" CURL_FORMAT_CURL_OFF_T ")",
data->state.resume_from, filesize);
return CURLE_BAD_DOWNLOAD_RESUME;
}
/* convert to size to download */
ftp->downloadsize = -data->state.resume_from;
/* download from where? */
data->state.resume_from = filesize - ftp->downloadsize;
}
else {
if(filesize < data->state.resume_from) {
failf(data, "Offset (%" CURL_FORMAT_CURL_OFF_T
") was beyond file size (%" CURL_FORMAT_CURL_OFF_T ")",
data->state.resume_from, filesize);
return CURLE_BAD_DOWNLOAD_RESUME;
}
/* Now store the number of bytes we are expected to download */
ftp->downloadsize = filesize-data->state.resume_from;
}
}
if(ftp->downloadsize == 0) {
/* no data to transfer */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
infof(data, "File already completely downloaded");
/* Set ->transfer so that we won't get any error in ftp_done()
* because we didn't transfer the any file */
ftp->transfer = PPTRANSFER_NONE;
state(data, FTP_STOP);
return CURLE_OK;
}
/* Set resume file transfer offset */
infof(data, "Instructs server to resume from offset %"
CURL_FORMAT_CURL_OFF_T, data->state.resume_from);
result = Curl_pp_sendf(data, &ftpc->pp, "REST %" CURL_FORMAT_CURL_OFF_T,
data->state.resume_from);
if(!result)
state(data, FTP_RETR_REST);
}
else {
/* no resume */
result = Curl_pp_sendf(data, &ftpc->pp, "RETR %s", ftpc->file);
if(!result)
state(data, FTP_RETR);
}
return result;
}
static CURLcode ftp_state_size_resp(struct Curl_easy *data,
int ftpcode,
ftpstate instate)
{
CURLcode result = CURLE_OK;
curl_off_t filesize = -1;
char *buf = data->state.buffer;
/* get the size from the ascii string: */
if(ftpcode == 213) {
/* To allow servers to prepend "rubbish" in the response string, we scan
for all the digits at the end of the response and parse only those as a
number. */
char *start = &buf[4];
char *fdigit = strchr(start, '\r');
if(fdigit) {
do
fdigit--;
while(ISDIGIT(*fdigit) && (fdigit > start));
if(!ISDIGIT(*fdigit))
fdigit++;
}
else
fdigit = start;
/* ignores parsing errors, which will make the size remain unknown */
(void)curlx_strtoofft(fdigit, NULL, 0, &filesize);
}
else if(ftpcode == 550) { /* "No such file or directory" */
/* allow a SIZE failure for (resumed) uploads, when probing what command
to use */
if(instate != FTP_STOR_SIZE) {
failf(data, "The file does not exist");
return CURLE_REMOTE_FILE_NOT_FOUND;
}
}
if(instate == FTP_SIZE) {
#ifdef CURL_FTP_HTTPSTYLE_HEAD
if(-1 != filesize) {
char clbuf[128];
int clbuflen = msnprintf(clbuf, sizeof(clbuf),
"Content-Length: %" CURL_FORMAT_CURL_OFF_T "\r\n", filesize);
result = Curl_client_write(data, CLIENTWRITE_BOTH, clbuf, clbuflen);
if(result)
return result;
}
#endif
Curl_pgrsSetDownloadSize(data, filesize);
result = ftp_state_rest(data, data->conn);
}
else if(instate == FTP_RETR_SIZE) {
Curl_pgrsSetDownloadSize(data, filesize);
result = ftp_state_retr(data, filesize);
}
else if(instate == FTP_STOR_SIZE) {
data->state.resume_from = filesize;
result = ftp_state_ul_setup(data, TRUE);
}
return result;
}
static CURLcode ftp_state_rest_resp(struct Curl_easy *data,
struct connectdata *conn,
int ftpcode,
ftpstate instate)
{
CURLcode result = CURLE_OK;
struct ftp_conn *ftpc = &conn->proto.ftpc;
switch(instate) {
case FTP_REST:
default:
#ifdef CURL_FTP_HTTPSTYLE_HEAD
if(ftpcode == 350) {
char buffer[24]= { "Accept-ranges: bytes\r\n" };
result = Curl_client_write(data, CLIENTWRITE_BOTH, buffer,
strlen(buffer));
if(result)
return result;
}
#endif
result = ftp_state_prepare_transfer(data);
break;
case FTP_RETR_REST:
if(ftpcode != 350) {
failf(data, "Couldn't use REST");
result = CURLE_FTP_COULDNT_USE_REST;
}
else {
result = Curl_pp_sendf(data, &ftpc->pp, "RETR %s", ftpc->file);
if(!result)
state(data, FTP_RETR);
}
break;
}
return result;
}
static CURLcode ftp_state_stor_resp(struct Curl_easy *data,
int ftpcode, ftpstate instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(ftpcode >= 400) {
failf(data, "Failed FTP upload: %0d", ftpcode);
state(data, FTP_STOP);
/* oops, we never close the sockets! */
return CURLE_UPLOAD_FAILED;
}
conn->proto.ftpc.state_saved = instate;
/* PORT means we are now awaiting the server to connect to us. */
if(data->set.ftp_use_port) {
bool connected;
state(data, FTP_STOP); /* no longer in STOR state */
result = AllowServerConnect(data, &connected);
if(result)
return result;
if(!connected) {
struct ftp_conn *ftpc = &conn->proto.ftpc;
infof(data, "Data conn was not available immediately");
ftpc->wait_data_conn = TRUE;
}
return CURLE_OK;
}
return InitiateTransfer(data);
}
/* for LIST and RETR responses */
static CURLcode ftp_state_get_resp(struct Curl_easy *data,
int ftpcode,
ftpstate instate)
{
CURLcode result = CURLE_OK;
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
if((ftpcode == 150) || (ftpcode == 125)) {
/*
A;
150 Opening BINARY mode data connection for /etc/passwd (2241
bytes). (ok, the file is being transferred)
B:
150 Opening ASCII mode data connection for /bin/ls
C:
150 ASCII data connection for /bin/ls (137.167.104.91,37445) (0 bytes).
D:
150 Opening ASCII mode data connection for [file] (0.0.0.0,0) (545 bytes)
E:
125 Data connection already open; Transfer starting. */
curl_off_t size = -1; /* default unknown size */
/*
* It appears that there are FTP-servers that return size 0 for files when
* SIZE is used on the file while being in BINARY mode. To work around
* that (stupid) behavior, we attempt to parse the RETR response even if
* the SIZE returned size zero.
*
* Debugging help from Salvatore Sorrentino on February 26, 2003.
*/
if((instate != FTP_LIST) &&
!data->state.prefer_ascii &&
(ftp->downloadsize < 1)) {
/*
* It seems directory listings either don't show the size or very
* often uses size 0 anyway. ASCII transfers may very well turn out
* that the transferred amount of data is not the same as this line
* tells, why using this number in those cases only confuses us.
*
* Example D above makes this parsing a little tricky */
char *bytes;
char *buf = data->state.buffer;
bytes = strstr(buf, " bytes");
if(bytes) {
long in = (long)(--bytes-buf);
/* this is a hint there is size information in there! ;-) */
while(--in) {
/* scan for the left parenthesis and break there */
if('(' == *bytes)
break;
/* skip only digits */
if(!ISDIGIT(*bytes)) {
bytes = NULL;
break;
}
/* one more estep backwards */
bytes--;
}
/* if we have nothing but digits: */
if(bytes) {
++bytes;
/* get the number! */
(void)curlx_strtoofft(bytes, NULL, 0, &size);
}
}
}
else if(ftp->downloadsize > -1)
size = ftp->downloadsize;
if(size > data->req.maxdownload && data->req.maxdownload > 0)
size = data->req.size = data->req.maxdownload;
else if((instate != FTP_LIST) && (data->state.prefer_ascii))
size = -1; /* kludge for servers that understate ASCII mode file size */
infof(data, "Maxdownload = %" CURL_FORMAT_CURL_OFF_T,
data->req.maxdownload);
if(instate != FTP_LIST)
infof(data, "Getting file with size: %" CURL_FORMAT_CURL_OFF_T,
size);
/* FTP download: */
conn->proto.ftpc.state_saved = instate;
conn->proto.ftpc.retr_size_saved = size;
if(data->set.ftp_use_port) {
bool connected;
result = AllowServerConnect(data, &connected);
if(result)
return result;
if(!connected) {
struct ftp_conn *ftpc = &conn->proto.ftpc;
infof(data, "Data conn was not available immediately");
state(data, FTP_STOP);
ftpc->wait_data_conn = TRUE;
}
}
else
return InitiateTransfer(data);
}
else {
if((instate == FTP_LIST) && (ftpcode == 450)) {
/* simply no matching files in the dir listing */
ftp->transfer = PPTRANSFER_NONE; /* don't download anything */
state(data, FTP_STOP); /* this phase is over */
}
else {
failf(data, "RETR response: %03d", ftpcode);
return instate == FTP_RETR && ftpcode == 550?
CURLE_REMOTE_FILE_NOT_FOUND:
CURLE_FTP_COULDNT_RETR_FILE;
}
}
return result;
}
/* after USER, PASS and ACCT */
static CURLcode ftp_state_loggedin(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
if(conn->bits.ftp_use_control_ssl) {
/* PBSZ = PROTECTION BUFFER SIZE.
The 'draft-murray-auth-ftp-ssl' (draft 12, page 7) says:
Specifically, the PROT command MUST be preceded by a PBSZ
command and a PBSZ command MUST be preceded by a successful
security data exchange (the TLS negotiation in this case)
... (and on page 8):
Thus the PBSZ command must still be issued, but must have a
parameter of '0' to indicate that no buffering is taking place
and the data connection should not be encapsulated.
*/
result = Curl_pp_sendf(data, &conn->proto.ftpc.pp, "PBSZ %d", 0);
if(!result)
state(data, FTP_PBSZ);
}
else {
result = ftp_state_pwd(data, conn);
}
return result;
}
/* for USER and PASS responses */
static CURLcode ftp_state_user_resp(struct Curl_easy *data,
int ftpcode,
ftpstate instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
(void)instate; /* no use for this yet */
/* some need password anyway, and others just return 2xx ignored */
if((ftpcode == 331) && (ftpc->state == FTP_USER)) {
/* 331 Password required for ...
(the server requires to send the user's password too) */
result = Curl_pp_sendf(data, &ftpc->pp, "PASS %s",
conn->passwd?conn->passwd:"");
if(!result)
state(data, FTP_PASS);
}
else if(ftpcode/100 == 2) {
/* 230 User ... logged in.
(the user logged in with or without password) */
result = ftp_state_loggedin(data);
}
else if(ftpcode == 332) {
if(data->set.str[STRING_FTP_ACCOUNT]) {
result = Curl_pp_sendf(data, &ftpc->pp, "ACCT %s",
data->set.str[STRING_FTP_ACCOUNT]);
if(!result)
state(data, FTP_ACCT);
}
else {
failf(data, "ACCT requested but none available");
result = CURLE_LOGIN_DENIED;
}
}
else {
/* All other response codes, like:
530 User ... access denied
(the server denies to log the specified user) */
if(data->set.str[STRING_FTP_ALTERNATIVE_TO_USER] &&
!data->state.ftp_trying_alternative) {
/* Ok, USER failed. Let's try the supplied command. */
result =
Curl_pp_sendf(data, &ftpc->pp, "%s",
data->set.str[STRING_FTP_ALTERNATIVE_TO_USER]);
if(!result) {
data->state.ftp_trying_alternative = TRUE;
state(data, FTP_USER);
}
}
else {
failf(data, "Access denied: %03d", ftpcode);
result = CURLE_LOGIN_DENIED;
}
}
return result;
}
/* for ACCT response */
static CURLcode ftp_state_acct_resp(struct Curl_easy *data,
int ftpcode)
{
CURLcode result = CURLE_OK;
if(ftpcode != 230) {
failf(data, "ACCT rejected by server: %03d", ftpcode);
result = CURLE_FTP_WEIRD_PASS_REPLY; /* FIX */
}
else
result = ftp_state_loggedin(data);
return result;
}
static CURLcode ftp_statemachine(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int ftpcode;
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
static const char ftpauth[][4] = { "SSL", "TLS" };
size_t nread = 0;
if(pp->sendleft)
return Curl_pp_flushsend(data, pp);
result = ftp_readresp(data, sock, pp, &ftpcode, &nread);
if(result)
return result;
if(ftpcode) {
/* we have now received a full FTP server response */
switch(ftpc->state) {
case FTP_WAIT220:
if(ftpcode == 230) {
/* 230 User logged in - already! Take as 220 if TLS required. */
if(data->set.use_ssl <= CURLUSESSL_TRY ||
conn->bits.ftp_use_control_ssl)
return ftp_state_user_resp(data, ftpcode, ftpc->state);
}
else if(ftpcode != 220) {
failf(data, "Got a %03d ftp-server response when 220 was expected",
ftpcode);
return CURLE_WEIRD_SERVER_REPLY;
}
/* We have received a 220 response fine, now we proceed. */
#ifdef HAVE_GSSAPI
if(data->set.krb) {
/* If not anonymous login, try a secure login. Note that this
procedure is still BLOCKING. */
Curl_sec_request_prot(conn, "private");
/* We set private first as default, in case the line below fails to
set a valid level */
Curl_sec_request_prot(conn, data->set.str[STRING_KRB_LEVEL]);
if(Curl_sec_login(data, conn))
infof(data, "Logging in with password in cleartext!");
else
infof(data, "Authentication successful");
}
#endif
if(data->set.use_ssl && !conn->bits.ftp_use_control_ssl) {
/* We don't have a SSL/TLS control connection yet, but FTPS is
requested. Try a FTPS connection now */
ftpc->count3 = 0;
switch(data->set.ftpsslauth) {
case CURLFTPAUTH_DEFAULT:
case CURLFTPAUTH_SSL:
ftpc->count2 = 1; /* add one to get next */
ftpc->count1 = 0;
break;
case CURLFTPAUTH_TLS:
ftpc->count2 = -1; /* subtract one to get next */
ftpc->count1 = 1;
break;
default:
failf(data, "unsupported parameter to CURLOPT_FTPSSLAUTH: %d",
(int)data->set.ftpsslauth);
return CURLE_UNKNOWN_OPTION; /* we don't know what to do */
}
result = Curl_pp_sendf(data, &ftpc->pp, "AUTH %s",
ftpauth[ftpc->count1]);
if(!result)
state(data, FTP_AUTH);
}
else
result = ftp_state_user(data, conn);
break;
case FTP_AUTH:
/* we have gotten the response to a previous AUTH command */
if(pp->cache_size)
return CURLE_WEIRD_SERVER_REPLY; /* Forbid pipelining in response. */
/* RFC2228 (page 5) says:
*
* If the server is willing to accept the named security mechanism,
* and does not require any security data, it must respond with
* reply code 234/334.
*/
if((ftpcode == 234) || (ftpcode == 334)) {
/* Curl_ssl_connect is BLOCKING */
result = Curl_ssl_connect(data, conn, FIRSTSOCKET);
if(!result) {
conn->bits.ftp_use_data_ssl = FALSE; /* clear-text data */
conn->bits.ftp_use_control_ssl = TRUE; /* SSL on control */
result = ftp_state_user(data, conn);
}
}
else if(ftpc->count3 < 1) {
ftpc->count3++;
ftpc->count1 += ftpc->count2; /* get next attempt */
result = Curl_pp_sendf(data, &ftpc->pp, "AUTH %s",
ftpauth[ftpc->count1]);
/* remain in this same state */
}
else {
if(data->set.use_ssl > CURLUSESSL_TRY)
/* we failed and CURLUSESSL_CONTROL or CURLUSESSL_ALL is set */
result = CURLE_USE_SSL_FAILED;
else
/* ignore the failure and continue */
result = ftp_state_user(data, conn);
}
break;
case FTP_USER:
case FTP_PASS:
result = ftp_state_user_resp(data, ftpcode, ftpc->state);
break;
case FTP_ACCT:
result = ftp_state_acct_resp(data, ftpcode);
break;
case FTP_PBSZ:
result =
Curl_pp_sendf(data, &ftpc->pp, "PROT %c",
data->set.use_ssl == CURLUSESSL_CONTROL ? 'C' : 'P');
if(!result)
state(data, FTP_PROT);
break;
case FTP_PROT:
if(ftpcode/100 == 2)
/* We have enabled SSL for the data connection! */
conn->bits.ftp_use_data_ssl =
(data->set.use_ssl != CURLUSESSL_CONTROL) ? TRUE : FALSE;
/* FTP servers typically responds with 500 if they decide to reject
our 'P' request */
else if(data->set.use_ssl > CURLUSESSL_CONTROL)
/* we failed and bails out */
return CURLE_USE_SSL_FAILED;
if(data->set.ftp_ccc) {
/* CCC - Clear Command Channel
*/
result = Curl_pp_sendf(data, &ftpc->pp, "%s", "CCC");
if(!result)
state(data, FTP_CCC);
}
else
result = ftp_state_pwd(data, conn);
break;
case FTP_CCC:
if(ftpcode < 500) {
/* First shut down the SSL layer (note: this call will block) */
result = Curl_ssl_shutdown(data, conn, FIRSTSOCKET);
if(result)
failf(data, "Failed to clear the command channel (CCC)");
}
if(!result)
/* Then continue as normal */
result = ftp_state_pwd(data, conn);
break;
case FTP_PWD:
if(ftpcode == 257) {
char *ptr = &data->state.buffer[4]; /* start on the first letter */
const size_t buf_size = data->set.buffer_size;
char *dir;
bool entry_extracted = FALSE;
dir = malloc(nread + 1);
if(!dir)
return CURLE_OUT_OF_MEMORY;
/* Reply format is like
257<space>[rubbish]"<directory-name>"<space><commentary> and the
RFC959 says
The directory name can contain any character; embedded
double-quotes should be escaped by double-quotes (the
"quote-doubling" convention).
*/
/* scan for the first double-quote for non-standard responses */
while(ptr < &data->state.buffer[buf_size]
&& *ptr != '\n' && *ptr != '\0' && *ptr != '"')
ptr++;
if('\"' == *ptr) {
/* it started good */
char *store;
ptr++;
for(store = dir; *ptr;) {
if('\"' == *ptr) {
if('\"' == ptr[1]) {
/* "quote-doubling" */
*store = ptr[1];
ptr++;
}
else {
/* end of path */
entry_extracted = TRUE;
break; /* get out of this loop */
}
}
else
*store = *ptr;
store++;
ptr++;
}
*store = '\0'; /* null-terminate */
}
if(entry_extracted) {
/* If the path name does not look like an absolute path (i.e.: it
does not start with a '/'), we probably need some server-dependent
adjustments. For example, this is the case when connecting to
an OS400 FTP server: this server supports two name syntaxes,
the default one being incompatible with standard paths. In
addition, this server switches automatically to the regular path
syntax when one is encountered in a command: this results in
having an entrypath in the wrong syntax when later used in CWD.
The method used here is to check the server OS: we do it only
if the path name looks strange to minimize overhead on other
systems. */
if(!ftpc->server_os && dir[0] != '/') {
result = Curl_pp_sendf(data, &ftpc->pp, "%s", "SYST");
if(result) {
free(dir);
return result;
}
Curl_safefree(ftpc->entrypath);
ftpc->entrypath = dir; /* remember this */
infof(data, "Entry path is '%s'", ftpc->entrypath);
/* also save it where getinfo can access it: */
data->state.most_recent_ftp_entrypath = ftpc->entrypath;
state(data, FTP_SYST);
break;
}
Curl_safefree(ftpc->entrypath);
ftpc->entrypath = dir; /* remember this */
infof(data, "Entry path is '%s'", ftpc->entrypath);
/* also save it where getinfo can access it: */
data->state.most_recent_ftp_entrypath = ftpc->entrypath;
}
else {
/* couldn't get the path */
free(dir);
infof(data, "Failed to figure out path");
}
}
state(data, FTP_STOP); /* we are done with the CONNECT phase! */
DEBUGF(infof(data, "protocol connect phase DONE"));
break;
case FTP_SYST:
if(ftpcode == 215) {
char *ptr = &data->state.buffer[4]; /* start on the first letter */
char *os;
char *store;
os = malloc(nread + 1);
if(!os)
return CURLE_OUT_OF_MEMORY;
/* Reply format is like
215<space><OS-name><space><commentary>
*/
while(*ptr == ' ')
ptr++;
for(store = os; *ptr && *ptr != ' ';)
*store++ = *ptr++;
*store = '\0'; /* null-terminate */
/* Check for special servers here. */
if(strcasecompare(os, "OS/400")) {
/* Force OS400 name format 1. */
result = Curl_pp_sendf(data, &ftpc->pp, "%s", "SITE NAMEFMT 1");
if(result) {
free(os);
return result;
}
/* remember target server OS */
Curl_safefree(ftpc->server_os);
ftpc->server_os = os;
state(data, FTP_NAMEFMT);
break;
}
/* Nothing special for the target server. */
/* remember target server OS */
Curl_safefree(ftpc->server_os);
ftpc->server_os = os;
}
else {
/* Cannot identify server OS. Continue anyway and cross fingers. */
}
state(data, FTP_STOP); /* we are done with the CONNECT phase! */
DEBUGF(infof(data, "protocol connect phase DONE"));
break;
case FTP_NAMEFMT:
if(ftpcode == 250) {
/* Name format change successful: reload initial path. */
ftp_state_pwd(data, conn);
break;
}
state(data, FTP_STOP); /* we are done with the CONNECT phase! */
DEBUGF(infof(data, "protocol connect phase DONE"));
break;
case FTP_QUOTE:
case FTP_POSTQUOTE:
case FTP_RETR_PREQUOTE:
case FTP_STOR_PREQUOTE:
if((ftpcode >= 400) && !ftpc->count2) {
/* failure response code, and not allowed to fail */
failf(data, "QUOT command failed with %03d", ftpcode);
result = CURLE_QUOTE_ERROR;
}
else
result = ftp_state_quote(data, FALSE, ftpc->state);
break;
case FTP_CWD:
if(ftpcode/100 != 2) {
/* failure to CWD there */
if(data->set.ftp_create_missing_dirs &&
ftpc->cwdcount && !ftpc->count2) {
/* try making it */
ftpc->count2++; /* counter to prevent CWD-MKD loops */
/* count3 is set to allow MKD to fail once per dir. In the case when
CWD fails and then MKD fails (due to another session raced it to
create the dir) this then allows for a second try to CWD to it. */
ftpc->count3 = (data->set.ftp_create_missing_dirs == 2) ? 1 : 0;
result = Curl_pp_sendf(data, &ftpc->pp, "MKD %s",
ftpc->dirs[ftpc->cwdcount - 1]);
if(!result)
state(data, FTP_MKD);
}
else {
/* return failure */
failf(data, "Server denied you to change to the given directory");
ftpc->cwdfail = TRUE; /* don't remember this path as we failed
to enter it */
result = CURLE_REMOTE_ACCESS_DENIED;
}
}
else {
/* success */
ftpc->count2 = 0;
if(++ftpc->cwdcount <= ftpc->dirdepth)
/* send next CWD */
result = Curl_pp_sendf(data, &ftpc->pp, "CWD %s",
ftpc->dirs[ftpc->cwdcount - 1]);
else
result = ftp_state_mdtm(data);
}
break;
case FTP_MKD:
if((ftpcode/100 != 2) && !ftpc->count3--) {
/* failure to MKD the dir */
failf(data, "Failed to MKD dir: %03d", ftpcode);
result = CURLE_REMOTE_ACCESS_DENIED;
}
else {
state(data, FTP_CWD);
/* send CWD */
result = Curl_pp_sendf(data, &ftpc->pp, "CWD %s",
ftpc->dirs[ftpc->cwdcount - 1]);
}
break;
case FTP_MDTM:
result = ftp_state_mdtm_resp(data, ftpcode);
break;
case FTP_TYPE:
case FTP_LIST_TYPE:
case FTP_RETR_TYPE:
case FTP_STOR_TYPE:
result = ftp_state_type_resp(data, ftpcode, ftpc->state);
break;
case FTP_SIZE:
case FTP_RETR_SIZE:
case FTP_STOR_SIZE:
result = ftp_state_size_resp(data, ftpcode, ftpc->state);
break;
case FTP_REST:
case FTP_RETR_REST:
result = ftp_state_rest_resp(data, conn, ftpcode, ftpc->state);
break;
case FTP_PRET:
if(ftpcode != 200) {
/* there only is this one standard OK return code. */
failf(data, "PRET command not accepted: %03d", ftpcode);
return CURLE_FTP_PRET_FAILED;
}
result = ftp_state_use_pasv(data, conn);
break;
case FTP_PASV:
result = ftp_state_pasv_resp(data, ftpcode);
break;
case FTP_PORT:
result = ftp_state_port_resp(data, ftpcode);
break;
case FTP_LIST:
case FTP_RETR:
result = ftp_state_get_resp(data, ftpcode, ftpc->state);
break;
case FTP_STOR:
result = ftp_state_stor_resp(data, ftpcode, ftpc->state);
break;
case FTP_QUIT:
/* fallthrough, just stop! */
default:
/* internal error */
state(data, FTP_STOP);
break;
}
} /* if(ftpcode) */
return result;
}
/* called repeatedly until done from multi.c */
static CURLcode ftp_multi_statemach(struct Curl_easy *data,
bool *done)
{
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
CURLcode result = Curl_pp_statemach(data, &ftpc->pp, FALSE, FALSE);
/* Check for the state outside of the Curl_socket_check() return code checks
since at times we are in fact already in this state when this function
gets called. */
*done = (ftpc->state == FTP_STOP) ? TRUE : FALSE;
return result;
}
static CURLcode ftp_block_statemach(struct Curl_easy *data,
struct connectdata *conn)
{
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
CURLcode result = CURLE_OK;
while(ftpc->state != FTP_STOP) {
result = Curl_pp_statemach(data, pp, TRUE, TRUE /* disconnecting */);
if(result)
break;
}
return result;
}
/*
* ftp_connect() should do everything that is to be considered a part of
* the connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE if not.
*
*/
static CURLcode ftp_connect(struct Curl_easy *data,
bool *done) /* see description above */
{
CURLcode result;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
*done = FALSE; /* default to not done yet */
/* We always support persistent connections on ftp */
connkeep(conn, "FTP default");
PINGPONG_SETUP(pp, ftp_statemachine, ftp_endofresp);
if(conn->handler->flags & PROTOPT_SSL) {
/* BLOCKING */
result = Curl_ssl_connect(data, conn, FIRSTSOCKET);
if(result)
return result;
conn->bits.ftp_use_control_ssl = TRUE;
}
Curl_pp_setup(pp); /* once per transfer */
Curl_pp_init(data, pp); /* init the generic pingpong data */
/* When we connect, we start in the state where we await the 220
response */
state(data, FTP_WAIT220);
result = ftp_multi_statemach(data, done);
return result;
}
/***********************************************************************
*
* ftp_done()
*
* The DONE function. This does what needs to be done after a single DO has
* performed.
*
* Input argument is already checked for validity.
*/
static CURLcode ftp_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
struct connectdata *conn = data->conn;
struct FTP *ftp = data->req.p.ftp;
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
ssize_t nread;
int ftpcode;
CURLcode result = CURLE_OK;
char *rawPath = NULL;
size_t pathLen = 0;
if(!ftp)
return CURLE_OK;
switch(status) {
case CURLE_BAD_DOWNLOAD_RESUME:
case CURLE_FTP_WEIRD_PASV_REPLY:
case CURLE_FTP_PORT_FAILED:
case CURLE_FTP_ACCEPT_FAILED:
case CURLE_FTP_ACCEPT_TIMEOUT:
case CURLE_FTP_COULDNT_SET_TYPE:
case CURLE_FTP_COULDNT_RETR_FILE:
case CURLE_PARTIAL_FILE:
case CURLE_UPLOAD_FAILED:
case CURLE_REMOTE_ACCESS_DENIED:
case CURLE_FILESIZE_EXCEEDED:
case CURLE_REMOTE_FILE_NOT_FOUND:
case CURLE_WRITE_ERROR:
/* the connection stays alive fine even though this happened */
/* fall-through */
case CURLE_OK: /* doesn't affect the control connection's status */
if(!premature)
break;
/* until we cope better with prematurely ended requests, let them
* fallback as if in complete failure */
/* FALLTHROUGH */
default: /* by default, an error means the control connection is
wedged and should not be used anymore */
ftpc->ctl_valid = FALSE;
ftpc->cwdfail = TRUE; /* set this TRUE to prevent us to remember the
current path, as this connection is going */
connclose(conn, "FTP ended with bad error code");
result = status; /* use the already set error code */
break;
}
if(data->state.wildcardmatch) {
if(data->set.chunk_end && ftpc->file) {
Curl_set_in_callback(data, true);
data->set.chunk_end(data->wildcard.customptr);
Curl_set_in_callback(data, false);
}
ftpc->known_filesize = -1;
}
if(!result)
/* get the url-decoded "raw" path */
result = Curl_urldecode(data, ftp->path, 0, &rawPath, &pathLen,
REJECT_CTRL);
if(result) {
/* We can limp along anyway (and should try to since we may already be in
* the error path) */
ftpc->ctl_valid = FALSE; /* mark control connection as bad */
connclose(conn, "FTP: out of memory!"); /* mark for connection closure */
free(ftpc->prevpath);
ftpc->prevpath = NULL; /* no path remembering */
}
else { /* remember working directory for connection reuse */
if((data->set.ftp_filemethod == FTPFILE_NOCWD) && (rawPath[0] == '/'))
free(rawPath); /* full path => no CWDs happened => keep ftpc->prevpath */
else {
free(ftpc->prevpath);
if(!ftpc->cwdfail) {
if(data->set.ftp_filemethod == FTPFILE_NOCWD)
pathLen = 0; /* relative path => working directory is FTP home */
else
pathLen -= ftpc->file?strlen(ftpc->file):0; /* file is url-decoded */
rawPath[pathLen] = '\0';
ftpc->prevpath = rawPath;
}
else {
free(rawPath);
ftpc->prevpath = NULL; /* no path */
}
}
if(ftpc->prevpath)
infof(data, "Remembering we are in dir \"%s\"", ftpc->prevpath);
}
/* free the dir tree and file parts */
freedirs(ftpc);
/* shut down the socket to inform the server we're done */
#ifdef _WIN32_WCE
shutdown(conn->sock[SECONDARYSOCKET], 2); /* SD_BOTH */
#endif
if(conn->sock[SECONDARYSOCKET] != CURL_SOCKET_BAD) {
if(!result && ftpc->dont_check && data->req.maxdownload > 0) {
/* partial download completed */
result = Curl_pp_sendf(data, pp, "%s", "ABOR");
if(result) {
failf(data, "Failure sending ABOR command: %s",
curl_easy_strerror(result));
ftpc->ctl_valid = FALSE; /* mark control connection as bad */
connclose(conn, "ABOR command failed"); /* connection closure */
}
}
if(conn->ssl[SECONDARYSOCKET].use) {
/* The secondary socket is using SSL so we must close down that part
first before we close the socket for real */
Curl_ssl_close(data, conn, SECONDARYSOCKET);
/* Note that we keep "use" set to TRUE since that (next) connection is
still requested to use SSL */
}
close_secondarysocket(data, conn);
}
if(!result && (ftp->transfer == PPTRANSFER_BODY) && ftpc->ctl_valid &&
pp->pending_resp && !premature) {
/*
* Let's see what the server says about the transfer we just performed,
* but lower the timeout as sometimes this connection has died while the
* data has been transferred. This happens when doing through NATs etc that
* abandon old silent connections.
*/
timediff_t old_time = pp->response_time;
pp->response_time = 60*1000; /* give it only a minute for now */
pp->response = Curl_now(); /* timeout relative now */
result = Curl_GetFTPResponse(data, &nread, &ftpcode);
pp->response_time = old_time; /* set this back to previous value */
if(!nread && (CURLE_OPERATION_TIMEDOUT == result)) {
failf(data, "control connection looks dead");
ftpc->ctl_valid = FALSE; /* mark control connection as bad */
connclose(conn, "Timeout or similar in FTP DONE operation"); /* close */
}
if(result) {
Curl_safefree(ftp->pathalloc);
return result;
}
if(ftpc->dont_check && data->req.maxdownload > 0) {
/* we have just sent ABOR and there is no reliable way to check if it was
* successful or not; we have to close the connection now */
infof(data, "partial download completed, closing connection");
connclose(conn, "Partial download with no ability to check");
return result;
}
if(!ftpc->dont_check) {
/* 226 Transfer complete, 250 Requested file action okay, completed. */
switch(ftpcode) {
case 226:
case 250:
break;
case 552:
failf(data, "Exceeded storage allocation");
result = CURLE_REMOTE_DISK_FULL;
break;
default:
failf(data, "server did not report OK, got %d", ftpcode);
result = CURLE_PARTIAL_FILE;
break;
}
}
}
if(result || premature)
/* the response code from the transfer showed an error already so no
use checking further */
;
else if(data->set.upload) {
if((-1 != data->state.infilesize) &&
(data->state.infilesize != data->req.writebytecount) &&
!data->set.crlf &&
(ftp->transfer == PPTRANSFER_BODY)) {
failf(data, "Uploaded unaligned file size (%" CURL_FORMAT_CURL_OFF_T
" out of %" CURL_FORMAT_CURL_OFF_T " bytes)",
data->req.bytecount, data->state.infilesize);
result = CURLE_PARTIAL_FILE;
}
}
else {
if((-1 != data->req.size) &&
(data->req.size != data->req.bytecount) &&
#ifdef CURL_DO_LINEEND_CONV
/* Most FTP servers don't adjust their file SIZE response for CRLFs, so
* we'll check to see if the discrepancy can be explained by the number
* of CRLFs we've changed to LFs.
*/
((data->req.size + data->state.crlf_conversions) !=
data->req.bytecount) &&
#endif /* CURL_DO_LINEEND_CONV */
(data->req.maxdownload != data->req.bytecount)) {
failf(data, "Received only partial file: %" CURL_FORMAT_CURL_OFF_T
" bytes", data->req.bytecount);
result = CURLE_PARTIAL_FILE;
}
else if(!ftpc->dont_check &&
!data->req.bytecount &&
(data->req.size>0)) {
failf(data, "No data was received!");
result = CURLE_FTP_COULDNT_RETR_FILE;
}
}
/* clear these for next connection */
ftp->transfer = PPTRANSFER_BODY;
ftpc->dont_check = FALSE;
/* Send any post-transfer QUOTE strings? */
if(!status && !result && !premature && data->set.postquote)
result = ftp_sendquote(data, conn, data->set.postquote);
Curl_safefree(ftp->pathalloc);
return result;
}
/***********************************************************************
*
* ftp_sendquote()
*
* Where a 'quote' means a list of custom commands to send to the server.
* The quote list is passed as an argument.
*
* BLOCKING
*/
static
CURLcode ftp_sendquote(struct Curl_easy *data,
struct connectdata *conn, struct curl_slist *quote)
{
struct curl_slist *item;
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
item = quote;
while(item) {
if(item->data) {
ssize_t nread;
char *cmd = item->data;
bool acceptfail = FALSE;
CURLcode result;
int ftpcode = 0;
/* if a command starts with an asterisk, which a legal FTP command never
can, the command will be allowed to fail without it causing any
aborts or cancels etc. It will cause libcurl to act as if the command
is successful, whatever the server reponds. */
if(cmd[0] == '*') {
cmd++;
acceptfail = TRUE;
}
result = Curl_pp_sendf(data, &ftpc->pp, "%s", cmd);
if(!result) {
pp->response = Curl_now(); /* timeout relative now */
result = Curl_GetFTPResponse(data, &nread, &ftpcode);
}
if(result)
return result;
if(!acceptfail && (ftpcode >= 400)) {
failf(data, "QUOT string not accepted: %s", cmd);
return CURLE_QUOTE_ERROR;
}
}
item = item->next;
}
return CURLE_OK;
}
/***********************************************************************
*
* ftp_need_type()
*
* Returns TRUE if we in the current situation should send TYPE
*/
static int ftp_need_type(struct connectdata *conn,
bool ascii_wanted)
{
return conn->proto.ftpc.transfertype != (ascii_wanted?'A':'I');
}
/***********************************************************************
*
* ftp_nb_type()
*
* Set TYPE. We only deal with ASCII or BINARY so this function
* sets one of them.
* If the transfer type is not sent, simulate on OK response in newstate
*/
static CURLcode ftp_nb_type(struct Curl_easy *data,
struct connectdata *conn,
bool ascii, ftpstate newstate)
{
struct ftp_conn *ftpc = &conn->proto.ftpc;
CURLcode result;
char want = (char)(ascii?'A':'I');
if(ftpc->transfertype == want) {
state(data, newstate);
return ftp_state_type_resp(data, 200, newstate);
}
result = Curl_pp_sendf(data, &ftpc->pp, "TYPE %c", want);
if(!result) {
state(data, newstate);
/* keep track of our current transfer type */
ftpc->transfertype = want;
}
return result;
}
/***************************************************************************
*
* ftp_pasv_verbose()
*
* This function only outputs some informationals about this second connection
* when we've issued a PASV command before and thus we have connected to a
* possibly new IP address.
*
*/
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void
ftp_pasv_verbose(struct Curl_easy *data,
struct Curl_addrinfo *ai,
char *newhost, /* ascii version */
int port)
{
char buf[256];
Curl_printable_address(ai, buf, sizeof(buf));
infof(data, "Connecting to %s (%s) port %d", newhost, buf, port);
}
#endif
/*
* ftp_do_more()
*
* This function shall be called when the second FTP (data) connection is
* connected.
*
* 'complete' can return 0 for incomplete, 1 for done and -1 for go back
* (which basically is only for when PASV is being sent to retry a failed
* EPSV).
*/
static CURLcode ftp_do_more(struct Curl_easy *data, int *completep)
{
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
CURLcode result = CURLE_OK;
bool connected = FALSE;
bool complete = FALSE;
/* the ftp struct is inited in ftp_connect() */
struct FTP *ftp = data->req.p.ftp;
/* if the second connection isn't done yet, wait for it */
if(!conn->bits.tcpconnect[SECONDARYSOCKET]) {
if(Curl_connect_ongoing(conn)) {
/* As we're in TUNNEL_CONNECT state now, we know the proxy name and port
aren't used so we blank their arguments. */
result = Curl_proxyCONNECT(data, SECONDARYSOCKET, NULL, 0);
return result;
}
result = Curl_is_connected(data, conn, SECONDARYSOCKET, &connected);
/* Ready to do more? */
if(connected) {
DEBUGF(infof(data, "DO-MORE connected phase starts"));
}
else {
if(result && (ftpc->count1 == 0)) {
*completep = -1; /* go back to DOING please */
/* this is a EPSV connect failing, try PASV instead */
return ftp_epsv_disable(data, conn);
}
return result;
}
}
#ifndef CURL_DISABLE_PROXY
result = Curl_proxy_connect(data, SECONDARYSOCKET);
if(result)
return result;
if(CONNECT_SECONDARYSOCKET_PROXY_SSL())
return result;
if(conn->bits.tunnel_proxy && conn->bits.httpproxy &&
Curl_connect_ongoing(conn))
return result;
#endif
if(ftpc->state) {
/* already in a state so skip the initial commands.
They are only done to kickstart the do_more state */
result = ftp_multi_statemach(data, &complete);
*completep = (int)complete;
/* if we got an error or if we don't wait for a data connection return
immediately */
if(result || !ftpc->wait_data_conn)
return result;
/* if we reach the end of the FTP state machine here, *complete will be
TRUE but so is ftpc->wait_data_conn, which says we need to wait for the
data connection and therefore we're not actually complete */
*completep = 0;
}
if(ftp->transfer <= PPTRANSFER_INFO) {
/* a transfer is about to take place, or if not a file name was given
so we'll do a SIZE on it later and then we need the right TYPE first */
if(ftpc->wait_data_conn == TRUE) {
bool serv_conned;
result = ReceivedServerConnect(data, &serv_conned);
if(result)
return result; /* Failed to accept data connection */
if(serv_conned) {
/* It looks data connection is established */
result = AcceptServerConnect(data);
ftpc->wait_data_conn = FALSE;
if(!result)
result = InitiateTransfer(data);
if(result)
return result;
*completep = 1; /* this state is now complete when the server has
connected back to us */
}
}
else if(data->set.upload) {
result = ftp_nb_type(data, conn, data->state.prefer_ascii,
FTP_STOR_TYPE);
if(result)
return result;
result = ftp_multi_statemach(data, &complete);
if(ftpc->wait_data_conn)
/* if we reach the end of the FTP state machine here, *complete will be
TRUE but so is ftpc->wait_data_conn, which says we need to wait for
the data connection and therefore we're not actually complete */
*completep = 0;
else
*completep = (int)complete;
}
else {
/* download */
ftp->downloadsize = -1; /* unknown as of yet */
result = Curl_range(data);
if(result == CURLE_OK && data->req.maxdownload >= 0) {
/* Don't check for successful transfer */
ftpc->dont_check = TRUE;
}
if(result)
;
else if(data->state.list_only || !ftpc->file) {
/* The specified path ends with a slash, and therefore we think this
is a directory that is requested, use LIST. But before that we
need to set ASCII transfer mode. */
/* But only if a body transfer was requested. */
if(ftp->transfer == PPTRANSFER_BODY) {
result = ftp_nb_type(data, conn, TRUE, FTP_LIST_TYPE);
if(result)
return result;
}
/* otherwise just fall through */
}
else {
result = ftp_nb_type(data, conn, data->state.prefer_ascii,
FTP_RETR_TYPE);
if(result)
return result;
}
result = ftp_multi_statemach(data, &complete);
*completep = (int)complete;
}
return result;
}
/* no data to transfer */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
if(!ftpc->wait_data_conn) {
/* no waiting for the data connection so this is now complete */
*completep = 1;
DEBUGF(infof(data, "DO-MORE phase ends with %d", (int)result));
}
return result;
}
/***********************************************************************
*
* ftp_perform()
*
* This is the actual DO function for FTP. Get a file/directory according to
* the options previously setup.
*/
static
CURLcode ftp_perform(struct Curl_easy *data,
bool *connected, /* connect status after PASV / PORT */
bool *dophase_done)
{
/* this is FTP and no proxy */
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
DEBUGF(infof(data, "DO phase starts"));
if(data->set.opt_no_body) {
/* requested no body means no transfer... */
struct FTP *ftp = data->req.p.ftp;
ftp->transfer = PPTRANSFER_INFO;
}
*dophase_done = FALSE; /* not done yet */
/* start the first command in the DO phase */
result = ftp_state_quote(data, TRUE, FTP_QUOTE);
if(result)
return result;
/* run the state-machine */
result = ftp_multi_statemach(data, dophase_done);
*connected = conn->bits.tcpconnect[SECONDARYSOCKET];
infof(data, "ftp_perform ends with SECONDARY: %d", *connected);
if(*dophase_done)
DEBUGF(infof(data, "DO phase is complete1"));
return result;
}
static void wc_data_dtor(void *ptr)
{
struct ftp_wc *ftpwc = ptr;
if(ftpwc && ftpwc->parser)
Curl_ftp_parselist_data_free(&ftpwc->parser);
free(ftpwc);
}
static CURLcode init_wc_data(struct Curl_easy *data)
{
char *last_slash;
struct FTP *ftp = data->req.p.ftp;
char *path = ftp->path;
struct WildcardData *wildcard = &(data->wildcard);
CURLcode result = CURLE_OK;
struct ftp_wc *ftpwc = NULL;
last_slash = strrchr(ftp->path, '/');
if(last_slash) {
last_slash++;
if(last_slash[0] == '\0') {
wildcard->state = CURLWC_CLEAN;
result = ftp_parse_url_path(data);
return result;
}
wildcard->pattern = strdup(last_slash);
if(!wildcard->pattern)
return CURLE_OUT_OF_MEMORY;
last_slash[0] = '\0'; /* cut file from path */
}
else { /* there is only 'wildcard pattern' or nothing */
if(path[0]) {
wildcard->pattern = strdup(path);
if(!wildcard->pattern)
return CURLE_OUT_OF_MEMORY;
path[0] = '\0';
}
else { /* only list */
wildcard->state = CURLWC_CLEAN;
result = ftp_parse_url_path(data);
return result;
}
}
/* program continues only if URL is not ending with slash, allocate needed
resources for wildcard transfer */
/* allocate ftp protocol specific wildcard data */
ftpwc = calloc(1, sizeof(struct ftp_wc));
if(!ftpwc) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
/* INITIALIZE parselist structure */
ftpwc->parser = Curl_ftp_parselist_data_alloc();
if(!ftpwc->parser) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
wildcard->protdata = ftpwc; /* put it to the WildcardData tmp pointer */
wildcard->dtor = wc_data_dtor;
/* wildcard does not support NOCWD option (assert it?) */
if(data->set.ftp_filemethod == FTPFILE_NOCWD)
data->set.ftp_filemethod = FTPFILE_MULTICWD;
/* try to parse ftp url */
result = ftp_parse_url_path(data);
if(result) {
goto fail;
}
wildcard->path = strdup(ftp->path);
if(!wildcard->path) {
result = CURLE_OUT_OF_MEMORY;
goto fail;
}
/* backup old write_function */
ftpwc->backup.write_function = data->set.fwrite_func;
/* parsing write function */
data->set.fwrite_func = Curl_ftp_parselist;
/* backup old file descriptor */
ftpwc->backup.file_descriptor = data->set.out;
/* let the writefunc callback know the transfer */
data->set.out = data;
infof(data, "Wildcard - Parsing started");
return CURLE_OK;
fail:
if(ftpwc) {
Curl_ftp_parselist_data_free(&ftpwc->parser);
free(ftpwc);
}
Curl_safefree(wildcard->pattern);
wildcard->dtor = ZERO_NULL;
wildcard->protdata = NULL;
return result;
}
static CURLcode wc_statemach(struct Curl_easy *data)
{
struct WildcardData * const wildcard = &(data->wildcard);
struct connectdata *conn = data->conn;
CURLcode result = CURLE_OK;
for(;;) {
switch(wildcard->state) {
case CURLWC_INIT:
result = init_wc_data(data);
if(wildcard->state == CURLWC_CLEAN)
/* only listing! */
return result;
wildcard->state = result ? CURLWC_ERROR : CURLWC_MATCHING;
return result;
case CURLWC_MATCHING: {
/* In this state is LIST response successfully parsed, so lets restore
previous WRITEFUNCTION callback and WRITEDATA pointer */
struct ftp_wc *ftpwc = wildcard->protdata;
data->set.fwrite_func = ftpwc->backup.write_function;
data->set.out = ftpwc->backup.file_descriptor;
ftpwc->backup.write_function = ZERO_NULL;
ftpwc->backup.file_descriptor = NULL;
wildcard->state = CURLWC_DOWNLOADING;
if(Curl_ftp_parselist_geterror(ftpwc->parser)) {
/* error found in LIST parsing */
wildcard->state = CURLWC_CLEAN;
continue;
}
if(wildcard->filelist.size == 0) {
/* no corresponding file */
wildcard->state = CURLWC_CLEAN;
return CURLE_REMOTE_FILE_NOT_FOUND;
}
continue;
}
case CURLWC_DOWNLOADING: {
/* filelist has at least one file, lets get first one */
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct curl_fileinfo *finfo = wildcard->filelist.head->ptr;
struct FTP *ftp = data->req.p.ftp;
char *tmp_path = aprintf("%s%s", wildcard->path, finfo->filename);
if(!tmp_path)
return CURLE_OUT_OF_MEMORY;
/* switch default ftp->path and tmp_path */
free(ftp->pathalloc);
ftp->pathalloc = ftp->path = tmp_path;
infof(data, "Wildcard - START of \"%s\"", finfo->filename);
if(data->set.chunk_bgn) {
long userresponse;
Curl_set_in_callback(data, true);
userresponse = data->set.chunk_bgn(
finfo, wildcard->customptr, (int)wildcard->filelist.size);
Curl_set_in_callback(data, false);
switch(userresponse) {
case CURL_CHUNK_BGN_FUNC_SKIP:
infof(data, "Wildcard - \"%s\" skipped by user",
finfo->filename);
wildcard->state = CURLWC_SKIP;
continue;
case CURL_CHUNK_BGN_FUNC_FAIL:
return CURLE_CHUNK_FAILED;
}
}
if(finfo->filetype != CURLFILETYPE_FILE) {
wildcard->state = CURLWC_SKIP;
continue;
}
if(finfo->flags & CURLFINFOFLAG_KNOWN_SIZE)
ftpc->known_filesize = finfo->size;
result = ftp_parse_url_path(data);
if(result)
return result;
/* we don't need the Curl_fileinfo of first file anymore */
Curl_llist_remove(&wildcard->filelist, wildcard->filelist.head, NULL);
if(wildcard->filelist.size == 0) { /* remains only one file to down. */
wildcard->state = CURLWC_CLEAN;
/* after that will be ftp_do called once again and no transfer
will be done because of CURLWC_CLEAN state */
return CURLE_OK;
}
return result;
}
case CURLWC_SKIP: {
if(data->set.chunk_end) {
Curl_set_in_callback(data, true);
data->set.chunk_end(data->wildcard.customptr);
Curl_set_in_callback(data, false);
}
Curl_llist_remove(&wildcard->filelist, wildcard->filelist.head, NULL);
wildcard->state = (wildcard->filelist.size == 0) ?
CURLWC_CLEAN : CURLWC_DOWNLOADING;
continue;
}
case CURLWC_CLEAN: {
struct ftp_wc *ftpwc = wildcard->protdata;
result = CURLE_OK;
if(ftpwc)
result = Curl_ftp_parselist_geterror(ftpwc->parser);
wildcard->state = result ? CURLWC_ERROR : CURLWC_DONE;
return result;
}
case CURLWC_DONE:
case CURLWC_ERROR:
case CURLWC_CLEAR:
if(wildcard->dtor)
wildcard->dtor(wildcard->protdata);
return result;
}
}
/* UNREACHABLE */
}
/***********************************************************************
*
* ftp_do()
*
* This function is registered as 'curl_do' function. It decodes the path
* parts etc as a wrapper to the actual DO function (ftp_perform).
*
* The input argument is already checked for validity.
*/
static CURLcode ftp_do(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
*done = FALSE; /* default to false */
ftpc->wait_data_conn = FALSE; /* default to no such wait */
if(data->state.wildcardmatch) {
result = wc_statemach(data);
if(data->wildcard.state == CURLWC_SKIP ||
data->wildcard.state == CURLWC_DONE) {
/* do not call ftp_regular_transfer */
return CURLE_OK;
}
if(result) /* error, loop or skipping the file */
return result;
}
else { /* no wildcard FSM needed */
result = ftp_parse_url_path(data);
if(result)
return result;
}
result = ftp_regular_transfer(data, done);
return result;
}
/***********************************************************************
*
* ftp_quit()
*
* This should be called before calling sclose() on an ftp control connection
* (not data connections). We should then wait for the response from the
* server before returning. The calling code should then try to close the
* connection.
*
*/
static CURLcode ftp_quit(struct Curl_easy *data, struct connectdata *conn)
{
CURLcode result = CURLE_OK;
if(conn->proto.ftpc.ctl_valid) {
result = Curl_pp_sendf(data, &conn->proto.ftpc.pp, "%s", "QUIT");
if(result) {
failf(data, "Failure sending QUIT command: %s",
curl_easy_strerror(result));
conn->proto.ftpc.ctl_valid = FALSE; /* mark control connection as bad */
connclose(conn, "QUIT command failed"); /* mark for connection closure */
state(data, FTP_STOP);
return result;
}
state(data, FTP_QUIT);
result = ftp_block_statemach(data, conn);
}
return result;
}
/***********************************************************************
*
* ftp_disconnect()
*
* Disconnect from an FTP server. Cleanup protocol-specific per-connection
* resources. BLOCKING.
*/
static CURLcode ftp_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection)
{
struct ftp_conn *ftpc = &conn->proto.ftpc;
struct pingpong *pp = &ftpc->pp;
/* We cannot send quit unconditionally. If this connection is stale or
bad in any way, sending quit and waiting around here will make the
disconnect wait in vain and cause more problems than we need to.
ftp_quit() will check the state of ftp->ctl_valid. If it's ok it
will try to send the QUIT command, otherwise it will just return.
*/
if(dead_connection)
ftpc->ctl_valid = FALSE;
/* The FTP session may or may not have been allocated/setup at this point! */
(void)ftp_quit(data, conn); /* ignore errors on the QUIT */
if(ftpc->entrypath) {
if(data->state.most_recent_ftp_entrypath == ftpc->entrypath) {
data->state.most_recent_ftp_entrypath = NULL;
}
Curl_safefree(ftpc->entrypath);
}
freedirs(ftpc);
Curl_safefree(ftpc->prevpath);
Curl_safefree(ftpc->server_os);
Curl_pp_disconnect(pp);
Curl_sec_end(conn);
return CURLE_OK;
}
/***********************************************************************
*
* ftp_parse_url_path()
*
* Parse the URL path into separate path components.
*
*/
static
CURLcode ftp_parse_url_path(struct Curl_easy *data)
{
/* the ftp struct is already inited in ftp_connect() */
struct FTP *ftp = data->req.p.ftp;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
const char *slashPos = NULL;
const char *fileName = NULL;
CURLcode result = CURLE_OK;
char *rawPath = NULL; /* url-decoded "raw" path */
size_t pathLen = 0;
ftpc->ctl_valid = FALSE;
ftpc->cwdfail = FALSE;
/* url-decode ftp path before further evaluation */
result = Curl_urldecode(data, ftp->path, 0, &rawPath, &pathLen, REJECT_CTRL);
if(result)
return result;
switch(data->set.ftp_filemethod) {
case FTPFILE_NOCWD: /* fastest, but less standard-compliant */
if((pathLen > 0) && (rawPath[pathLen - 1] != '/'))
fileName = rawPath; /* this is a full file path */
/*
else: ftpc->file is not used anywhere other than for operations on
a file. In other words, never for directory operations.
So we can safely leave filename as NULL here and use it as a
argument in dir/file decisions.
*/
break;
case FTPFILE_SINGLECWD:
slashPos = strrchr(rawPath, '/');
if(slashPos) {
/* get path before last slash, except for / */
size_t dirlen = slashPos - rawPath;
if(dirlen == 0)
dirlen++;
ftpc->dirs = calloc(1, sizeof(ftpc->dirs[0]));
if(!ftpc->dirs) {
free(rawPath);
return CURLE_OUT_OF_MEMORY;
}
ftpc->dirs[0] = calloc(1, dirlen + 1);
if(!ftpc->dirs[0]) {
free(rawPath);
return CURLE_OUT_OF_MEMORY;
}
strncpy(ftpc->dirs[0], rawPath, dirlen);
ftpc->dirdepth = 1; /* we consider it to be a single dir */
fileName = slashPos + 1; /* rest is file name */
}
else
fileName = rawPath; /* file name only (or empty) */
break;
default: /* allow pretty much anything */
case FTPFILE_MULTICWD: {
/* current position: begin of next path component */
const char *curPos = rawPath;
int dirAlloc = 0; /* number of entries allocated for the 'dirs' array */
const char *str = rawPath;
for(; *str != 0; ++str)
if (*str == '/')
++dirAlloc;
if(dirAlloc > 0) {
ftpc->dirs = calloc(dirAlloc, sizeof(ftpc->dirs[0]));
if(!ftpc->dirs) {
free(rawPath);
return CURLE_OUT_OF_MEMORY;
}
/* parse the URL path into separate path components */
while((slashPos = strchr(curPos, '/')) != NULL) {
size_t compLen = slashPos - curPos;
/* path starts with a slash: add that as a directory */
if((compLen == 0) && (ftpc->dirdepth == 0))
++compLen;
/* we skip empty path components, like "x//y" since the FTP command
CWD requires a parameter and a non-existent parameter a) doesn't
work on many servers and b) has no effect on the others. */
if(compLen > 0) {
char *comp = calloc(1, compLen + 1);
if(!comp) {
free(rawPath);
return CURLE_OUT_OF_MEMORY;
}
strncpy(comp, curPos, compLen);
ftpc->dirs[ftpc->dirdepth++] = comp;
}
curPos = slashPos + 1;
}
}
DEBUGASSERT(ftpc->dirdepth <= dirAlloc);
fileName = curPos; /* the rest is the file name (or empty) */
}
break;
} /* switch */
if(fileName && *fileName)
ftpc->file = strdup(fileName);
else
ftpc->file = NULL; /* instead of point to a zero byte,
we make it a NULL pointer */
if(data->set.upload && !ftpc->file && (ftp->transfer == PPTRANSFER_BODY)) {
/* We need a file name when uploading. Return error! */
failf(data, "Uploading to a URL without a file name!");
free(rawPath);
return CURLE_URL_MALFORMAT;
}
ftpc->cwddone = FALSE; /* default to not done */
if((data->set.ftp_filemethod == FTPFILE_NOCWD) && (rawPath[0] == '/'))
ftpc->cwddone = TRUE; /* skip CWD for absolute paths */
else { /* newly created FTP connections are already in entry path */
const char *oldPath = conn->bits.reuse ? ftpc->prevpath : "";
if(oldPath) {
size_t n = pathLen;
if(data->set.ftp_filemethod == FTPFILE_NOCWD)
n = 0; /* CWD to entry for relative paths */
else
n -= ftpc->file?strlen(ftpc->file):0;
if((strlen(oldPath) == n) && !strncmp(rawPath, oldPath, n)) {
infof(data, "Request has same path as previous transfer");
ftpc->cwddone = TRUE;
}
}
}
free(rawPath);
return CURLE_OK;
}
/* call this when the DO phase has completed */
static CURLcode ftp_dophase_done(struct Curl_easy *data, bool connected)
{
struct connectdata *conn = data->conn;
struct FTP *ftp = data->req.p.ftp;
struct ftp_conn *ftpc = &conn->proto.ftpc;
if(connected) {
int completed;
CURLcode result = ftp_do_more(data, &completed);
if(result) {
close_secondarysocket(data, conn);
return result;
}
}
if(ftp->transfer != PPTRANSFER_BODY)
/* no data to transfer */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
else if(!connected)
/* since we didn't connect now, we want do_more to get called */
conn->bits.do_more = TRUE;
ftpc->ctl_valid = TRUE; /* seems good */
return CURLE_OK;
}
/* called from multi.c while DOing */
static CURLcode ftp_doing(struct Curl_easy *data,
bool *dophase_done)
{
CURLcode result = ftp_multi_statemach(data, dophase_done);
if(result)
DEBUGF(infof(data, "DO phase failed"));
else if(*dophase_done) {
result = ftp_dophase_done(data, FALSE /* not connected */);
DEBUGF(infof(data, "DO phase is complete2"));
}
return result;
}
/***********************************************************************
*
* ftp_regular_transfer()
*
* The input argument is already checked for validity.
*
* Performs all commands done before a regular transfer between a local and a
* remote host.
*
* ftp->ctl_valid starts out as FALSE, and gets set to TRUE if we reach the
* ftp_done() function without finding any major problem.
*/
static
CURLcode ftp_regular_transfer(struct Curl_easy *data,
bool *dophase_done)
{
CURLcode result = CURLE_OK;
bool connected = FALSE;
struct connectdata *conn = data->conn;
struct ftp_conn *ftpc = &conn->proto.ftpc;
data->req.size = -1; /* make sure this is unknown at this point */
Curl_pgrsSetUploadCounter(data, 0);
Curl_pgrsSetDownloadCounter(data, 0);
Curl_pgrsSetUploadSize(data, -1);
Curl_pgrsSetDownloadSize(data, -1);
ftpc->ctl_valid = TRUE; /* starts good */
result = ftp_perform(data,
&connected, /* have we connected after PASV/PORT */
dophase_done); /* all commands in the DO-phase done? */
if(!result) {
if(!*dophase_done)
/* the DO phase has not completed yet */
return CURLE_OK;
result = ftp_dophase_done(data, connected);
if(result)
return result;
}
else
freedirs(ftpc);
return result;
}
static CURLcode ftp_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
char *type;
struct FTP *ftp;
data->req.p.ftp = ftp = calloc(sizeof(struct FTP), 1);
if(NULL == ftp)
return CURLE_OUT_OF_MEMORY;
ftp->path = &data->state.up.path[1]; /* don't include the initial slash */
/* FTP URLs support an extension like ";type=<typecode>" that
* we'll try to get now! */
type = strstr(ftp->path, ";type=");
if(!type)
type = strstr(conn->host.rawalloc, ";type=");
if(type) {
char command;
*type = 0; /* it was in the middle of the hostname */
command = Curl_raw_toupper(type[6]);
switch(command) {
case 'A': /* ASCII mode */
data->state.prefer_ascii = TRUE;
break;
case 'D': /* directory mode */
data->state.list_only = TRUE;
break;
case 'I': /* binary mode */
default:
/* switch off ASCII */
data->state.prefer_ascii = FALSE;
break;
}
}
/* get some initial data into the ftp struct */
ftp->transfer = PPTRANSFER_BODY;
ftp->downloadsize = 0;
conn->proto.ftpc.known_filesize = -1; /* unknown size for now */
return CURLE_OK;
}
#endif /* CURL_DISABLE_FTP */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/pop3.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* RFC1734 POP3 Authentication
* RFC1939 POP3 protocol
* RFC2195 CRAM-MD5 authentication
* RFC2384 POP URL Scheme
* RFC2449 POP3 Extension Mechanism
* RFC2595 Using TLS with IMAP, POP3 and ACAP
* RFC2831 DIGEST-MD5 authentication
* RFC4422 Simple Authentication and Security Layer (SASL)
* RFC4616 PLAIN authentication
* RFC4752 The Kerberos V5 ("GSSAPI") SASL Mechanism
* RFC5034 POP3 SASL Authentication Mechanism
* RFC6749 OAuth 2.0 Authorization Framework
* RFC8314 Use of TLS for Email Submission and Access
* Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt>
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_POP3
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "progress.h"
#include "transfer.h"
#include "escape.h"
#include "http.h" /* for HTTP proxy tunnel stuff */
#include "socks.h"
#include "pop3.h"
#include "strtoofft.h"
#include "strcase.h"
#include "vtls/vtls.h"
#include "connect.h"
#include "select.h"
#include "multiif.h"
#include "url.h"
#include "bufref.h"
#include "curl_sasl.h"
#include "curl_md5.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Local API functions */
static CURLcode pop3_regular_transfer(struct Curl_easy *data, bool *done);
static CURLcode pop3_do(struct Curl_easy *data, bool *done);
static CURLcode pop3_done(struct Curl_easy *data, CURLcode status,
bool premature);
static CURLcode pop3_connect(struct Curl_easy *data, bool *done);
static CURLcode pop3_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead);
static CURLcode pop3_multi_statemach(struct Curl_easy *data, bool *done);
static int pop3_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks);
static CURLcode pop3_doing(struct Curl_easy *data, bool *dophase_done);
static CURLcode pop3_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode pop3_parse_url_options(struct connectdata *conn);
static CURLcode pop3_parse_url_path(struct Curl_easy *data);
static CURLcode pop3_parse_custom_request(struct Curl_easy *data);
static CURLcode pop3_perform_auth(struct Curl_easy *data, const char *mech,
const struct bufref *initresp);
static CURLcode pop3_continue_auth(struct Curl_easy *data, const char *mech,
const struct bufref *resp);
static CURLcode pop3_cancel_auth(struct Curl_easy *data, const char *mech);
static CURLcode pop3_get_message(struct Curl_easy *data, struct bufref *out);
/*
* POP3 protocol handler.
*/
const struct Curl_handler Curl_handler_pop3 = {
"POP3", /* scheme */
pop3_setup_connection, /* setup_connection */
pop3_do, /* do_it */
pop3_done, /* done */
ZERO_NULL, /* do_more */
pop3_connect, /* connect_it */
pop3_multi_statemach, /* connecting */
pop3_doing, /* doing */
pop3_getsock, /* proto_getsock */
pop3_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
pop3_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_POP3, /* defport */
CURLPROTO_POP3, /* protocol */
CURLPROTO_POP3, /* family */
PROTOPT_CLOSEACTION | PROTOPT_NOURLQUERY | /* flags */
PROTOPT_URLOPTIONS
};
#ifdef USE_SSL
/*
* POP3S protocol handler.
*/
const struct Curl_handler Curl_handler_pop3s = {
"POP3S", /* scheme */
pop3_setup_connection, /* setup_connection */
pop3_do, /* do_it */
pop3_done, /* done */
ZERO_NULL, /* do_more */
pop3_connect, /* connect_it */
pop3_multi_statemach, /* connecting */
pop3_doing, /* doing */
pop3_getsock, /* proto_getsock */
pop3_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
pop3_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_POP3S, /* defport */
CURLPROTO_POP3S, /* protocol */
CURLPROTO_POP3, /* family */
PROTOPT_CLOSEACTION | PROTOPT_SSL
| PROTOPT_NOURLQUERY | PROTOPT_URLOPTIONS /* flags */
};
#endif
/* SASL parameters for the pop3 protocol */
static const struct SASLproto saslpop3 = {
"pop", /* The service name */
pop3_perform_auth, /* Send authentication command */
pop3_continue_auth, /* Send authentication continuation */
pop3_cancel_auth, /* Send authentication cancellation */
pop3_get_message, /* Get SASL response message */
255 - 8, /* Max line len - strlen("AUTH ") - 1 space - crlf */
'*', /* Code received when continuation is expected */
'+', /* Code to receive upon authentication success */
SASL_AUTH_DEFAULT, /* Default mechanisms */
SASL_FLAG_BASE64 /* Configuration flags */
};
#ifdef USE_SSL
static void pop3_to_pop3s(struct connectdata *conn)
{
/* Change the connection handler */
conn->handler = &Curl_handler_pop3s;
/* Set the connection's upgraded to TLS flag */
conn->bits.tls_upgraded = TRUE;
}
#else
#define pop3_to_pop3s(x) Curl_nop_stmt
#endif
/***********************************************************************
*
* pop3_endofresp()
*
* Checks for an ending POP3 status code at the start of the given string, but
* also detects the APOP timestamp from the server greeting and various
* capabilities from the CAPA response including the supported authentication
* types and allowed SASL mechanisms.
*/
static bool pop3_endofresp(struct Curl_easy *data, struct connectdata *conn,
char *line, size_t len, int *resp)
{
struct pop3_conn *pop3c = &conn->proto.pop3c;
(void)data;
/* Do we have an error response? */
if(len >= 4 && !memcmp("-ERR", line, 4)) {
*resp = '-';
return TRUE;
}
/* Are we processing CAPA command responses? */
if(pop3c->state == POP3_CAPA) {
/* Do we have the terminating line? */
if(len >= 1 && line[0] == '.')
/* Treat the response as a success */
*resp = '+';
else
/* Treat the response as an untagged continuation */
*resp = '*';
return TRUE;
}
/* Do we have a success response? */
if(len >= 3 && !memcmp("+OK", line, 3)) {
*resp = '+';
return TRUE;
}
/* Do we have a continuation response? */
if(len >= 1 && line[0] == '+') {
*resp = '*';
return TRUE;
}
return FALSE; /* Nothing for us */
}
/***********************************************************************
*
* pop3_get_message()
*
* Gets the authentication message from the response buffer.
*/
static CURLcode pop3_get_message(struct Curl_easy *data, struct bufref *out)
{
char *message = data->state.buffer;
size_t len = strlen(message);
if(len > 2) {
/* Find the start of the message */
len -= 2;
for(message += 2; *message == ' ' || *message == '\t'; message++, len--)
;
/* Find the end of the message */
while(len--)
if(message[len] != '\r' && message[len] != '\n' && message[len] != ' ' &&
message[len] != '\t')
break;
/* Terminate the message */
message[++len] = '\0';
Curl_bufref_set(out, message, len, NULL);
}
else
/* junk input => zero length output */
Curl_bufref_set(out, "", 0, NULL);
return CURLE_OK;
}
/***********************************************************************
*
* state()
*
* This is the ONLY way to change POP3 state!
*/
static void state(struct Curl_easy *data, pop3state newstate)
{
struct pop3_conn *pop3c = &data->conn->proto.pop3c;
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* for debug purposes */
static const char * const names[] = {
"STOP",
"SERVERGREET",
"CAPA",
"STARTTLS",
"UPGRADETLS",
"AUTH",
"APOP",
"USER",
"PASS",
"COMMAND",
"QUIT",
/* LAST */
};
if(pop3c->state != newstate)
infof(data, "POP3 %p state change from %s to %s",
(void *)pop3c, names[pop3c->state], names[newstate]);
#endif
pop3c->state = newstate;
}
/***********************************************************************
*
* pop3_perform_capa()
*
* Sends the CAPA command in order to obtain a list of server side supported
* capabilities.
*/
static CURLcode pop3_perform_capa(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
pop3c->sasl.authmechs = SASL_AUTH_NONE; /* No known auth. mechanisms yet */
pop3c->sasl.authused = SASL_AUTH_NONE; /* Clear the auth. mechanism used */
pop3c->tls_supported = FALSE; /* Clear the TLS capability */
/* Send the CAPA command */
result = Curl_pp_sendf(data, &pop3c->pp, "%s", "CAPA");
if(!result)
state(data, POP3_CAPA);
return result;
}
/***********************************************************************
*
* pop3_perform_starttls()
*
* Sends the STLS command to start the upgrade to TLS.
*/
static CURLcode pop3_perform_starttls(struct Curl_easy *data,
struct connectdata *conn)
{
/* Send the STLS command */
CURLcode result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "%s", "STLS");
if(!result)
state(data, POP3_STARTTLS);
return result;
}
/***********************************************************************
*
* pop3_perform_upgrade_tls()
*
* Performs the upgrade to TLS.
*/
static CURLcode pop3_perform_upgrade_tls(struct Curl_easy *data,
struct connectdata *conn)
{
/* Start the SSL connection */
struct pop3_conn *pop3c = &conn->proto.pop3c;
CURLcode result =
Curl_ssl_connect_nonblocking(data, conn, FALSE, FIRSTSOCKET,
&pop3c->ssldone);
if(!result) {
if(pop3c->state != POP3_UPGRADETLS)
state(data, POP3_UPGRADETLS);
if(pop3c->ssldone) {
pop3_to_pop3s(conn);
result = pop3_perform_capa(data, conn);
}
}
return result;
}
/***********************************************************************
*
* pop3_perform_user()
*
* Sends a clear text USER command to authenticate with.
*/
static CURLcode pop3_perform_user(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
/* Check we have a username and password to authenticate with and end the
connect phase if we don't */
if(!conn->bits.user_passwd) {
state(data, POP3_STOP);
return result;
}
/* Send the USER command */
result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "USER %s",
conn->user ? conn->user : "");
if(!result)
state(data, POP3_USER);
return result;
}
#ifndef CURL_DISABLE_CRYPTO_AUTH
/***********************************************************************
*
* pop3_perform_apop()
*
* Sends an APOP command to authenticate with.
*/
static CURLcode pop3_perform_apop(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
size_t i;
struct MD5_context *ctxt;
unsigned char digest[MD5_DIGEST_LEN];
char secret[2 * MD5_DIGEST_LEN + 1];
/* Check we have a username and password to authenticate with and end the
connect phase if we don't */
if(!conn->bits.user_passwd) {
state(data, POP3_STOP);
return result;
}
/* Create the digest */
ctxt = Curl_MD5_init(Curl_DIGEST_MD5);
if(!ctxt)
return CURLE_OUT_OF_MEMORY;
Curl_MD5_update(ctxt, (const unsigned char *) pop3c->apoptimestamp,
curlx_uztoui(strlen(pop3c->apoptimestamp)));
Curl_MD5_update(ctxt, (const unsigned char *) conn->passwd,
curlx_uztoui(strlen(conn->passwd)));
/* Finalise the digest */
Curl_MD5_final(ctxt, digest);
/* Convert the calculated 16 octet digest into a 32 byte hex string */
for(i = 0; i < MD5_DIGEST_LEN; i++)
msnprintf(&secret[2 * i], 3, "%02x", digest[i]);
result = Curl_pp_sendf(data, &pop3c->pp, "APOP %s %s", conn->user, secret);
if(!result)
state(data, POP3_APOP);
return result;
}
#endif
/***********************************************************************
*
* pop3_perform_auth()
*
* Sends an AUTH command allowing the client to login with the given SASL
* authentication mechanism.
*/
static CURLcode pop3_perform_auth(struct Curl_easy *data,
const char *mech,
const struct bufref *initresp)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &data->conn->proto.pop3c;
const char *ir = (const char *) Curl_bufref_ptr(initresp);
if(ir) { /* AUTH <mech> ...<crlf> */
/* Send the AUTH command with the initial response */
result = Curl_pp_sendf(data, &pop3c->pp, "AUTH %s %s", mech, ir);
}
else {
/* Send the AUTH command */
result = Curl_pp_sendf(data, &pop3c->pp, "AUTH %s", mech);
}
return result;
}
/***********************************************************************
*
* pop3_continue_auth()
*
* Sends SASL continuation data.
*/
static CURLcode pop3_continue_auth(struct Curl_easy *data,
const char *mech,
const struct bufref *resp)
{
struct pop3_conn *pop3c = &data->conn->proto.pop3c;
(void)mech;
return Curl_pp_sendf(data, &pop3c->pp,
"%s", (const char *) Curl_bufref_ptr(resp));
}
/***********************************************************************
*
* pop3_cancel_auth()
*
* Sends SASL cancellation.
*/
static CURLcode pop3_cancel_auth(struct Curl_easy *data, const char *mech)
{
struct pop3_conn *pop3c = &data->conn->proto.pop3c;
(void)mech;
return Curl_pp_sendf(data, &pop3c->pp, "*");
}
/***********************************************************************
*
* pop3_perform_authentication()
*
* Initiates the authentication sequence, with the appropriate SASL
* authentication mechanism, falling back to APOP and clear text should a
* common mechanism not be available between the client and server.
*/
static CURLcode pop3_perform_authentication(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
saslprogress progress = SASL_IDLE;
/* Check we have enough data to authenticate with and end the
connect phase if we don't */
if(!Curl_sasl_can_authenticate(&pop3c->sasl, conn)) {
state(data, POP3_STOP);
return result;
}
if(pop3c->authtypes & pop3c->preftype & POP3_TYPE_SASL) {
/* Calculate the SASL login details */
result = Curl_sasl_start(&pop3c->sasl, data, FALSE, &progress);
if(!result)
if(progress == SASL_INPROGRESS)
state(data, POP3_AUTH);
}
if(!result && progress == SASL_IDLE) {
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(pop3c->authtypes & pop3c->preftype & POP3_TYPE_APOP)
/* Perform APOP authentication */
result = pop3_perform_apop(data, conn);
else
#endif
if(pop3c->authtypes & pop3c->preftype & POP3_TYPE_CLEARTEXT)
/* Perform clear text authentication */
result = pop3_perform_user(data, conn);
else {
/* Other mechanisms not supported */
infof(data, "No known authentication mechanisms supported!");
result = CURLE_LOGIN_DENIED;
}
}
return result;
}
/***********************************************************************
*
* pop3_perform_command()
*
* Sends a POP3 based command.
*/
static CURLcode pop3_perform_command(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct POP3 *pop3 = data->req.p.pop3;
const char *command = NULL;
/* Calculate the default command */
if(pop3->id[0] == '\0' || data->set.list_only) {
command = "LIST";
if(pop3->id[0] != '\0')
/* Message specific LIST so skip the BODY transfer */
pop3->transfer = PPTRANSFER_INFO;
}
else
command = "RETR";
/* Send the command */
if(pop3->id[0] != '\0')
result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "%s %s",
(pop3->custom && pop3->custom[0] != '\0' ?
pop3->custom : command), pop3->id);
else
result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "%s",
(pop3->custom && pop3->custom[0] != '\0' ?
pop3->custom : command));
if(!result)
state(data, POP3_COMMAND);
return result;
}
/***********************************************************************
*
* pop3_perform_quit()
*
* Performs the quit action prior to sclose() be called.
*/
static CURLcode pop3_perform_quit(struct Curl_easy *data,
struct connectdata *conn)
{
/* Send the QUIT command */
CURLcode result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "%s", "QUIT");
if(!result)
state(data, POP3_QUIT);
return result;
}
/* For the initial server greeting */
static CURLcode pop3_state_servergreet_resp(struct Curl_easy *data,
int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
const char *line = data->state.buffer;
size_t len = strlen(line);
(void)instate; /* no use for this yet */
if(pop3code != '+') {
failf(data, "Got unexpected pop3-server response");
result = CURLE_WEIRD_SERVER_REPLY;
}
else {
/* Does the server support APOP authentication? */
if(len >= 4 && line[len - 2] == '>') {
/* Look for the APOP timestamp */
size_t i;
for(i = 3; i < len - 2; ++i) {
if(line[i] == '<') {
/* Calculate the length of the timestamp */
size_t timestamplen = len - 1 - i;
char *at;
if(!timestamplen)
break;
/* Allocate some memory for the timestamp */
pop3c->apoptimestamp = (char *)calloc(1, timestamplen + 1);
if(!pop3c->apoptimestamp)
break;
/* Copy the timestamp */
memcpy(pop3c->apoptimestamp, line + i, timestamplen);
pop3c->apoptimestamp[timestamplen] = '\0';
/* If the timestamp does not contain '@' it is not (as required by
RFC-1939) conformant to the RFC-822 message id syntax, and we
therefore do not use APOP authentication. */
at = strchr(pop3c->apoptimestamp, '@');
if(!at)
Curl_safefree(pop3c->apoptimestamp);
else
/* Store the APOP capability */
pop3c->authtypes |= POP3_TYPE_APOP;
break;
}
}
}
result = pop3_perform_capa(data, conn);
}
return result;
}
/* For CAPA responses */
static CURLcode pop3_state_capa_resp(struct Curl_easy *data, int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
const char *line = data->state.buffer;
size_t len = strlen(line);
(void)instate; /* no use for this yet */
/* Do we have a untagged continuation response? */
if(pop3code == '*') {
/* Does the server support the STLS capability? */
if(len >= 4 && !memcmp(line, "STLS", 4))
pop3c->tls_supported = TRUE;
/* Does the server support clear text authentication? */
else if(len >= 4 && !memcmp(line, "USER", 4))
pop3c->authtypes |= POP3_TYPE_CLEARTEXT;
/* Does the server support SASL based authentication? */
else if(len >= 5 && !memcmp(line, "SASL ", 5)) {
pop3c->authtypes |= POP3_TYPE_SASL;
/* Advance past the SASL keyword */
line += 5;
len -= 5;
/* Loop through the data line */
for(;;) {
size_t llen;
size_t wordlen;
unsigned short mechbit;
while(len &&
(*line == ' ' || *line == '\t' ||
*line == '\r' || *line == '\n')) {
line++;
len--;
}
if(!len)
break;
/* Extract the word */
for(wordlen = 0; wordlen < len && line[wordlen] != ' ' &&
line[wordlen] != '\t' && line[wordlen] != '\r' &&
line[wordlen] != '\n';)
wordlen++;
/* Test the word for a matching authentication mechanism */
mechbit = Curl_sasl_decode_mech(line, wordlen, &llen);
if(mechbit && llen == wordlen)
pop3c->sasl.authmechs |= mechbit;
line += wordlen;
len -= wordlen;
}
}
}
else {
/* Clear text is supported when CAPA isn't recognised */
if(pop3code != '+')
pop3c->authtypes |= POP3_TYPE_CLEARTEXT;
if(!data->set.use_ssl || conn->ssl[FIRSTSOCKET].use)
result = pop3_perform_authentication(data, conn);
else if(pop3code == '+' && pop3c->tls_supported)
/* Switch to TLS connection now */
result = pop3_perform_starttls(data, conn);
else if(data->set.use_ssl <= CURLUSESSL_TRY)
/* Fallback and carry on with authentication */
result = pop3_perform_authentication(data, conn);
else {
failf(data, "STLS not supported.");
result = CURLE_USE_SSL_FAILED;
}
}
return result;
}
/* For STARTTLS responses */
static CURLcode pop3_state_starttls_resp(struct Curl_easy *data,
struct connectdata *conn,
int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
/* Pipelining in response is forbidden. */
if(data->conn->proto.pop3c.pp.cache_size)
return CURLE_WEIRD_SERVER_REPLY;
if(pop3code != '+') {
if(data->set.use_ssl != CURLUSESSL_TRY) {
failf(data, "STARTTLS denied");
result = CURLE_USE_SSL_FAILED;
}
else
result = pop3_perform_authentication(data, conn);
}
else
result = pop3_perform_upgrade_tls(data, conn);
return result;
}
/* For SASL authentication responses */
static CURLcode pop3_state_auth_resp(struct Curl_easy *data,
int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
saslprogress progress;
(void)instate; /* no use for this yet */
result = Curl_sasl_continue(&pop3c->sasl, data, pop3code, &progress);
if(!result)
switch(progress) {
case SASL_DONE:
state(data, POP3_STOP); /* Authenticated */
break;
case SASL_IDLE: /* No mechanism left after cancellation */
#ifndef CURL_DISABLE_CRYPTO_AUTH
if(pop3c->authtypes & pop3c->preftype & POP3_TYPE_APOP)
/* Perform APOP authentication */
result = pop3_perform_apop(data, conn);
else
#endif
if(pop3c->authtypes & pop3c->preftype & POP3_TYPE_CLEARTEXT)
/* Perform clear text authentication */
result = pop3_perform_user(data, conn);
else {
failf(data, "Authentication cancelled");
result = CURLE_LOGIN_DENIED;
}
break;
default:
break;
}
return result;
}
#ifndef CURL_DISABLE_CRYPTO_AUTH
/* For APOP responses */
static CURLcode pop3_state_apop_resp(struct Curl_easy *data, int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(pop3code != '+') {
failf(data, "Authentication failed: %d", pop3code);
result = CURLE_LOGIN_DENIED;
}
else
/* End of connect phase */
state(data, POP3_STOP);
return result;
}
#endif
/* For USER responses */
static CURLcode pop3_state_user_resp(struct Curl_easy *data, int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
(void)instate; /* no use for this yet */
if(pop3code != '+') {
failf(data, "Access denied. %c", pop3code);
result = CURLE_LOGIN_DENIED;
}
else
/* Send the PASS command */
result = Curl_pp_sendf(data, &conn->proto.pop3c.pp, "PASS %s",
conn->passwd ? conn->passwd : "");
if(!result)
state(data, POP3_PASS);
return result;
}
/* For PASS responses */
static CURLcode pop3_state_pass_resp(struct Curl_easy *data, int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
(void)instate; /* no use for this yet */
if(pop3code != '+') {
failf(data, "Access denied. %c", pop3code);
result = CURLE_LOGIN_DENIED;
}
else
/* End of connect phase */
state(data, POP3_STOP);
return result;
}
/* For command responses */
static CURLcode pop3_state_command_resp(struct Curl_easy *data,
int pop3code,
pop3state instate)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct POP3 *pop3 = data->req.p.pop3;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct pingpong *pp = &pop3c->pp;
(void)instate; /* no use for this yet */
if(pop3code != '+') {
state(data, POP3_STOP);
return CURLE_RECV_ERROR;
}
/* This 'OK' line ends with a CR LF pair which is the two first bytes of the
EOB string so count this is two matching bytes. This is necessary to make
the code detect the EOB if the only data than comes now is %2e CR LF like
when there is no body to return. */
pop3c->eob = 2;
/* But since this initial CR LF pair is not part of the actual body, we set
the strip counter here so that these bytes won't be delivered. */
pop3c->strip = 2;
if(pop3->transfer == PPTRANSFER_BODY) {
/* POP3 download */
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
if(pp->cache) {
/* The header "cache" contains a bunch of data that is actually body
content so send it as such. Note that there may even be additional
"headers" after the body */
if(!data->set.opt_no_body) {
result = Curl_pop3_write(data, pp->cache, pp->cache_size);
if(result)
return result;
}
/* Free the cache */
Curl_safefree(pp->cache);
/* Reset the cache size */
pp->cache_size = 0;
}
}
/* End of DO phase */
state(data, POP3_STOP);
return result;
}
static CURLcode pop3_statemachine(struct Curl_easy *data,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
curl_socket_t sock = conn->sock[FIRSTSOCKET];
int pop3code;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct pingpong *pp = &pop3c->pp;
size_t nread = 0;
(void)data;
/* Busy upgrading the connection; right now all I/O is SSL/TLS, not POP3 */
if(pop3c->state == POP3_UPGRADETLS)
return pop3_perform_upgrade_tls(data, conn);
/* Flush any data that needs to be sent */
if(pp->sendleft)
return Curl_pp_flushsend(data, pp);
do {
/* Read the response from the server */
result = Curl_pp_readresp(data, sock, pp, &pop3code, &nread);
if(result)
return result;
if(!pop3code)
break;
/* We have now received a full POP3 server response */
switch(pop3c->state) {
case POP3_SERVERGREET:
result = pop3_state_servergreet_resp(data, pop3code, pop3c->state);
break;
case POP3_CAPA:
result = pop3_state_capa_resp(data, pop3code, pop3c->state);
break;
case POP3_STARTTLS:
result = pop3_state_starttls_resp(data, conn, pop3code, pop3c->state);
break;
case POP3_AUTH:
result = pop3_state_auth_resp(data, pop3code, pop3c->state);
break;
#ifndef CURL_DISABLE_CRYPTO_AUTH
case POP3_APOP:
result = pop3_state_apop_resp(data, pop3code, pop3c->state);
break;
#endif
case POP3_USER:
result = pop3_state_user_resp(data, pop3code, pop3c->state);
break;
case POP3_PASS:
result = pop3_state_pass_resp(data, pop3code, pop3c->state);
break;
case POP3_COMMAND:
result = pop3_state_command_resp(data, pop3code, pop3c->state);
break;
case POP3_QUIT:
state(data, POP3_STOP);
break;
default:
/* internal error */
state(data, POP3_STOP);
break;
}
} while(!result && pop3c->state != POP3_STOP && Curl_pp_moredata(pp));
return result;
}
/* Called repeatedly until done from multi.c */
static CURLcode pop3_multi_statemach(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
if((conn->handler->flags & PROTOPT_SSL) && !pop3c->ssldone) {
result = Curl_ssl_connect_nonblocking(data, conn, FALSE,
FIRSTSOCKET, &pop3c->ssldone);
if(result || !pop3c->ssldone)
return result;
}
result = Curl_pp_statemach(data, &pop3c->pp, FALSE, FALSE);
*done = (pop3c->state == POP3_STOP) ? TRUE : FALSE;
return result;
}
static CURLcode pop3_block_statemach(struct Curl_easy *data,
struct connectdata *conn,
bool disconnecting)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
while(pop3c->state != POP3_STOP && !result)
result = Curl_pp_statemach(data, &pop3c->pp, TRUE, disconnecting);
return result;
}
/* Allocate and initialize the POP3 struct for the current Curl_easy if
required */
static CURLcode pop3_init(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct POP3 *pop3;
pop3 = data->req.p.pop3 = calloc(sizeof(struct POP3), 1);
if(!pop3)
result = CURLE_OUT_OF_MEMORY;
return result;
}
/* For the POP3 "protocol connect" and "doing" phases only */
static int pop3_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks)
{
return Curl_pp_getsock(data, &conn->proto.pop3c.pp, socks);
}
/***********************************************************************
*
* pop3_connect()
*
* This function should do everything that is to be considered a part of the
* connection phase.
*
* The variable 'done' points to will be TRUE if the protocol-layer connect
* phase is done when this function returns, or FALSE if not.
*/
static CURLcode pop3_connect(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
struct pingpong *pp = &pop3c->pp;
*done = FALSE; /* default to not done yet */
/* We always support persistent connections in POP3 */
connkeep(conn, "POP3 default");
PINGPONG_SETUP(pp, pop3_statemachine, pop3_endofresp);
/* Set the default preferred authentication type and mechanism */
pop3c->preftype = POP3_TYPE_ANY;
Curl_sasl_init(&pop3c->sasl, data, &saslpop3);
/* Initialise the pingpong layer */
Curl_pp_setup(pp);
Curl_pp_init(data, pp);
/* Parse the URL options */
result = pop3_parse_url_options(conn);
if(result)
return result;
/* Start off waiting for the server greeting response */
state(data, POP3_SERVERGREET);
result = pop3_multi_statemach(data, done);
return result;
}
/***********************************************************************
*
* pop3_done()
*
* The DONE function. This does what needs to be done after a single DO has
* performed.
*
* Input argument is already checked for validity.
*/
static CURLcode pop3_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
CURLcode result = CURLE_OK;
struct POP3 *pop3 = data->req.p.pop3;
(void)premature;
if(!pop3)
return CURLE_OK;
if(status) {
connclose(data->conn, "POP3 done with bad status");
result = status; /* use the already set error code */
}
/* Cleanup our per-request based variables */
Curl_safefree(pop3->id);
Curl_safefree(pop3->custom);
/* Clear the transfer mode for the next request */
pop3->transfer = PPTRANSFER_BODY;
return result;
}
/***********************************************************************
*
* pop3_perform()
*
* This is the actual DO function for POP3. Get a message/listing according to
* the options previously setup.
*/
static CURLcode pop3_perform(struct Curl_easy *data, bool *connected,
bool *dophase_done)
{
/* This is POP3 and no proxy */
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct POP3 *pop3 = data->req.p.pop3;
DEBUGF(infof(data, "DO phase starts"));
if(data->set.opt_no_body) {
/* Requested no body means no transfer */
pop3->transfer = PPTRANSFER_INFO;
}
*dophase_done = FALSE; /* not done yet */
/* Start the first command in the DO phase */
result = pop3_perform_command(data);
if(result)
return result;
/* Run the state-machine */
result = pop3_multi_statemach(data, dophase_done);
*connected = conn->bits.tcpconnect[FIRSTSOCKET];
if(*dophase_done)
DEBUGF(infof(data, "DO phase is complete"));
return result;
}
/***********************************************************************
*
* pop3_do()
*
* This function is registered as 'curl_do' function. It decodes the path
* parts etc as a wrapper to the actual DO function (pop3_perform).
*
* The input argument is already checked for validity.
*/
static CURLcode pop3_do(struct Curl_easy *data, bool *done)
{
CURLcode result = CURLE_OK;
*done = FALSE; /* default to false */
/* Parse the URL path */
result = pop3_parse_url_path(data);
if(result)
return result;
/* Parse the custom request */
result = pop3_parse_custom_request(data);
if(result)
return result;
result = pop3_regular_transfer(data, done);
return result;
}
/***********************************************************************
*
* pop3_disconnect()
*
* Disconnect from an POP3 server. Cleanup protocol-specific per-connection
* resources. BLOCKING.
*/
static CURLcode pop3_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead_connection)
{
struct pop3_conn *pop3c = &conn->proto.pop3c;
(void)data;
/* We cannot send quit unconditionally. If this connection is stale or
bad in any way, sending quit and waiting around here will make the
disconnect wait in vain and cause more problems than we need to. */
if(!dead_connection && conn->bits.protoconnstart) {
if(!pop3_perform_quit(data, conn))
(void)pop3_block_statemach(data, conn, TRUE); /* ignore errors on QUIT */
}
/* Disconnect from the server */
Curl_pp_disconnect(&pop3c->pp);
/* Cleanup the SASL module */
Curl_sasl_cleanup(conn, pop3c->sasl.authused);
/* Cleanup our connection based variables */
Curl_safefree(pop3c->apoptimestamp);
return CURLE_OK;
}
/* Call this when the DO phase has completed */
static CURLcode pop3_dophase_done(struct Curl_easy *data, bool connected)
{
(void)data;
(void)connected;
return CURLE_OK;
}
/* Called from multi.c while DOing */
static CURLcode pop3_doing(struct Curl_easy *data, bool *dophase_done)
{
CURLcode result = pop3_multi_statemach(data, dophase_done);
if(result)
DEBUGF(infof(data, "DO phase failed"));
else if(*dophase_done) {
result = pop3_dophase_done(data, FALSE /* not connected */);
DEBUGF(infof(data, "DO phase is complete"));
}
return result;
}
/***********************************************************************
*
* pop3_regular_transfer()
*
* The input argument is already checked for validity.
*
* Performs all commands done before a regular transfer between a local and a
* remote host.
*/
static CURLcode pop3_regular_transfer(struct Curl_easy *data,
bool *dophase_done)
{
CURLcode result = CURLE_OK;
bool connected = FALSE;
/* Make sure size is unknown at this point */
data->req.size = -1;
/* Set the progress data */
Curl_pgrsSetUploadCounter(data, 0);
Curl_pgrsSetDownloadCounter(data, 0);
Curl_pgrsSetUploadSize(data, -1);
Curl_pgrsSetDownloadSize(data, -1);
/* Carry out the perform */
result = pop3_perform(data, &connected, dophase_done);
/* Perform post DO phase operations if necessary */
if(!result && *dophase_done)
result = pop3_dophase_done(data, connected);
return result;
}
static CURLcode pop3_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
/* Initialise the POP3 layer */
CURLcode result = pop3_init(data);
if(result)
return result;
/* Clear the TLS upgraded flag */
conn->bits.tls_upgraded = FALSE;
return CURLE_OK;
}
/***********************************************************************
*
* pop3_parse_url_options()
*
* Parse the URL login options.
*/
static CURLcode pop3_parse_url_options(struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct pop3_conn *pop3c = &conn->proto.pop3c;
const char *ptr = conn->options;
while(!result && ptr && *ptr) {
const char *key = ptr;
const char *value;
while(*ptr && *ptr != '=')
ptr++;
value = ptr + 1;
while(*ptr && *ptr != ';')
ptr++;
if(strncasecompare(key, "AUTH=", 5)) {
result = Curl_sasl_parse_url_auth_option(&pop3c->sasl,
value, ptr - value);
if(result && strncasecompare(value, "+APOP", ptr - value)) {
pop3c->preftype = POP3_TYPE_APOP;
pop3c->sasl.prefmech = SASL_AUTH_NONE;
result = CURLE_OK;
}
}
else
result = CURLE_URL_MALFORMAT;
if(*ptr == ';')
ptr++;
}
if(pop3c->preftype != POP3_TYPE_APOP)
switch(pop3c->sasl.prefmech) {
case SASL_AUTH_NONE:
pop3c->preftype = POP3_TYPE_NONE;
break;
case SASL_AUTH_DEFAULT:
pop3c->preftype = POP3_TYPE_ANY;
break;
default:
pop3c->preftype = POP3_TYPE_SASL;
break;
}
return result;
}
/***********************************************************************
*
* pop3_parse_url_path()
*
* Parse the URL path into separate path components.
*/
static CURLcode pop3_parse_url_path(struct Curl_easy *data)
{
/* The POP3 struct is already initialised in pop3_connect() */
struct POP3 *pop3 = data->req.p.pop3;
const char *path = &data->state.up.path[1]; /* skip leading path */
/* URL decode the path for the message ID */
return Curl_urldecode(data, path, 0, &pop3->id, NULL, REJECT_CTRL);
}
/***********************************************************************
*
* pop3_parse_custom_request()
*
* Parse the custom request.
*/
static CURLcode pop3_parse_custom_request(struct Curl_easy *data)
{
CURLcode result = CURLE_OK;
struct POP3 *pop3 = data->req.p.pop3;
const char *custom = data->set.str[STRING_CUSTOMREQUEST];
/* URL decode the custom request */
if(custom)
result = Curl_urldecode(data, custom, 0, &pop3->custom, NULL, REJECT_CTRL);
return result;
}
/***********************************************************************
*
* Curl_pop3_write()
*
* This function scans the body after the end-of-body and writes everything
* until the end is found.
*/
CURLcode Curl_pop3_write(struct Curl_easy *data, char *str, size_t nread)
{
/* This code could be made into a special function in the handler struct */
CURLcode result = CURLE_OK;
struct SingleRequest *k = &data->req;
struct connectdata *conn = data->conn;
struct pop3_conn *pop3c = &conn->proto.pop3c;
bool strip_dot = FALSE;
size_t last = 0;
size_t i;
/* Search through the buffer looking for the end-of-body marker which is
5 bytes (0d 0a 2e 0d 0a). Note that a line starting with a dot matches
the eob so the server will have prefixed it with an extra dot which we
need to strip out. Additionally the marker could of course be spread out
over 5 different data chunks. */
for(i = 0; i < nread; i++) {
size_t prev = pop3c->eob;
switch(str[i]) {
case 0x0d:
if(pop3c->eob == 0) {
pop3c->eob++;
if(i) {
/* Write out the body part that didn't match */
result = Curl_client_write(data, CLIENTWRITE_BODY, &str[last],
i - last);
if(result)
return result;
last = i;
}
}
else if(pop3c->eob == 3)
pop3c->eob++;
else
/* If the character match wasn't at position 0 or 3 then restart the
pattern matching */
pop3c->eob = 1;
break;
case 0x0a:
if(pop3c->eob == 1 || pop3c->eob == 4)
pop3c->eob++;
else
/* If the character match wasn't at position 1 or 4 then start the
search again */
pop3c->eob = 0;
break;
case 0x2e:
if(pop3c->eob == 2)
pop3c->eob++;
else if(pop3c->eob == 3) {
/* We have an extra dot after the CRLF which we need to strip off */
strip_dot = TRUE;
pop3c->eob = 0;
}
else
/* If the character match wasn't at position 2 then start the search
again */
pop3c->eob = 0;
break;
default:
pop3c->eob = 0;
break;
}
/* Did we have a partial match which has subsequently failed? */
if(prev && prev >= pop3c->eob) {
/* Strip can only be non-zero for the very first mismatch after CRLF
and then both prev and strip are equal and nothing will be output
below */
while(prev && pop3c->strip) {
prev--;
pop3c->strip--;
}
if(prev) {
/* If the partial match was the CRLF and dot then only write the CRLF
as the server would have inserted the dot */
if(strip_dot && prev - 1 > 0) {
result = Curl_client_write(data, CLIENTWRITE_BODY, (char *)POP3_EOB,
prev - 1);
}
else if(!strip_dot) {
result = Curl_client_write(data, CLIENTWRITE_BODY, (char *)POP3_EOB,
prev);
}
else {
result = CURLE_OK;
}
if(result)
return result;
last = i;
strip_dot = FALSE;
}
}
}
if(pop3c->eob == POP3_EOB_LEN) {
/* We have a full match so the transfer is done, however we must transfer
the CRLF at the start of the EOB as this is considered to be part of the
message as per RFC-1939, sect. 3 */
result = Curl_client_write(data, CLIENTWRITE_BODY, (char *)POP3_EOB, 2);
k->keepon &= ~KEEP_RECV;
pop3c->eob = 0;
return result;
}
if(pop3c->eob)
/* While EOB is matching nothing should be output */
return CURLE_OK;
if(nread - last) {
result = Curl_client_write(data, CLIENTWRITE_BODY, &str[last],
nread - last);
}
return result;
}
#endif /* CURL_DISABLE_POP3 */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/connect.h | #ifndef HEADER_CURL_CONNECT_H
#define HEADER_CURL_CONNECT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "nonblock.h" /* for curlx_nonblock(), formerly Curl_nonblock() */
#include "sockaddr.h"
#include "timeval.h"
CURLcode Curl_is_connected(struct Curl_easy *data,
struct connectdata *conn,
int sockindex,
bool *connected);
CURLcode Curl_connecthost(struct Curl_easy *data,
struct connectdata *conn,
const struct Curl_dns_entry *host);
/* generic function that returns how much time there's left to run, according
to the timeouts set */
timediff_t Curl_timeleft(struct Curl_easy *data,
struct curltime *nowp,
bool duringconnect);
#define DEFAULT_CONNECT_TIMEOUT 300000 /* milliseconds == five minutes */
/*
* Used to extract socket and connectdata struct for the most recent
* transfer on the given Curl_easy.
*
* The returned socket will be CURL_SOCKET_BAD in case of failure!
*/
curl_socket_t Curl_getconnectinfo(struct Curl_easy *data,
struct connectdata **connp);
bool Curl_addr2string(struct sockaddr *sa, curl_socklen_t salen,
char *addr, int *port);
/*
* Check if a connection seems to be alive.
*/
bool Curl_connalive(struct connectdata *conn);
#ifdef USE_WINSOCK
/* When you run a program that uses the Windows Sockets API, you may
experience slow performance when you copy data to a TCP server.
https://support.microsoft.com/kb/823764
Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
Buffer Size
*/
void Curl_sndbufset(curl_socket_t sockfd);
#else
#define Curl_sndbufset(y) Curl_nop_stmt
#endif
void Curl_updateconninfo(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sockfd);
void Curl_conninfo_remote(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sockfd);
void Curl_conninfo_local(struct Curl_easy *data, curl_socket_t sockfd,
char *local_ip, int *local_port);
void Curl_persistconninfo(struct Curl_easy *data, struct connectdata *conn,
char *local_ip, int local_port);
int Curl_closesocket(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t sock);
/*
* The Curl_sockaddr_ex structure is basically libcurl's external API
* curl_sockaddr structure with enough space available to directly hold any
* protocol-specific address structures. The variable declared here will be
* used to pass / receive data to/from the fopensocket callback if this has
* been set, before that, it is initialized from parameters.
*/
struct Curl_sockaddr_ex {
int family;
int socktype;
int protocol;
unsigned int addrlen;
union {
struct sockaddr addr;
struct Curl_sockaddr_storage buff;
} _sa_ex_u;
};
#define sa_addr _sa_ex_u.addr
/*
* Create a socket based on info from 'conn' and 'ai'.
*
* Fill in 'addr' and 'sockfd' accordingly if OK is returned. If the open
* socket callback is set, used that!
*
*/
CURLcode Curl_socket(struct Curl_easy *data,
const struct Curl_addrinfo *ai,
struct Curl_sockaddr_ex *addr,
curl_socket_t *sockfd);
/*
* Curl_conncontrol() marks the end of a connection/stream. The 'closeit'
* argument specifies if it is the end of a connection or a stream.
*
* For stream-based protocols (such as HTTP/2), a stream close will not cause
* a connection close. Other protocols will close the connection for both
* cases.
*
* It sets the bit.close bit to TRUE (with an explanation for debug builds),
* when the connection will close.
*/
#define CONNCTRL_KEEP 0 /* undo a marked closure */
#define CONNCTRL_CONNECTION 1
#define CONNCTRL_STREAM 2
void Curl_conncontrol(struct connectdata *conn,
int closeit
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
, const char *reason
#endif
);
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM, y)
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION, y)
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP, y)
#else /* if !DEBUGBUILD || CURL_DISABLE_VERBOSE_STRINGS */
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM)
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION)
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP)
#endif
bool Curl_conn_data_pending(struct connectdata *conn, int sockindex);
#endif /* HEADER_CURL_CONNECT_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/cookie.h | #ifndef HEADER_CURL_COOKIE_H
#define HEADER_CURL_COOKIE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
struct Cookie {
struct Cookie *next; /* next in the chain */
char *name; /* <this> = value */
char *value; /* name = <this> */
char *path; /* path = <this> which is in Set-Cookie: */
char *spath; /* sanitized cookie path */
char *domain; /* domain = <this> */
curl_off_t expires; /* expires = <this> */
char *expirestr; /* the plain text version */
/* RFC 2109 keywords. Version=1 means 2109-compliant cookie sending */
char *version; /* Version = <value> */
char *maxage; /* Max-Age = <value> */
bool tailmatch; /* whether we do tail-matching of the domain name */
bool secure; /* whether the 'secure' keyword was used */
bool livecookie; /* updated from a server, not a stored file */
bool httponly; /* true if the httponly directive is present */
int creationtime; /* time when the cookie was written */
unsigned char prefix; /* bitmap fields indicating which prefix are set */
};
/*
* Available cookie prefixes, as defined in
* draft-ietf-httpbis-rfc6265bis-02
*/
#define COOKIE_PREFIX__SECURE (1<<0)
#define COOKIE_PREFIX__HOST (1<<1)
#define COOKIE_HASH_SIZE 256
struct CookieInfo {
/* linked list of cookies we know of */
struct Cookie *cookies[COOKIE_HASH_SIZE];
char *filename; /* file we read from/write to */
long numcookies; /* number of cookies in the "jar" */
bool running; /* state info, for cookie adding information */
bool newsession; /* new session, discard session cookies on load */
int lastct; /* last creation-time used in the jar */
curl_off_t next_expiration; /* the next time at which expiration happens */
};
/* This is the maximum line length we accept for a cookie line. RFC 2109
section 6.3 says:
"at least 4096 bytes per cookie (as measured by the size of the characters
that comprise the cookie non-terminal in the syntax description of the
Set-Cookie header)"
We allow max 5000 bytes cookie header. Max 4095 bytes length per cookie
name and value. Name + value may not exceed 4096 bytes.
*/
#define MAX_COOKIE_LINE 5000
/* This is the maximum length of a cookie name or content we deal with: */
#define MAX_NAME 4096
#define MAX_NAME_TXT "4095"
struct Curl_easy;
/*
* Add a cookie to the internal list of cookies. The domain and path arguments
* are only used if the header boolean is TRUE.
*/
struct Cookie *Curl_cookie_add(struct Curl_easy *data,
struct CookieInfo *c, bool header,
bool noexpiry, char *lineptr,
const char *domain, const char *path,
bool secure);
struct Cookie *Curl_cookie_getlist(struct CookieInfo *c, const char *host,
const char *path, bool secure);
void Curl_cookie_freelist(struct Cookie *cookies);
void Curl_cookie_clearall(struct CookieInfo *cookies);
void Curl_cookie_clearsess(struct CookieInfo *cookies);
#if defined(CURL_DISABLE_HTTP) || defined(CURL_DISABLE_COOKIES)
#define Curl_cookie_list(x) NULL
#define Curl_cookie_loadfiles(x) Curl_nop_stmt
#define Curl_cookie_init(x,y,z,w) NULL
#define Curl_cookie_cleanup(x) Curl_nop_stmt
#define Curl_flush_cookies(x,y) Curl_nop_stmt
#else
void Curl_flush_cookies(struct Curl_easy *data, bool cleanup);
void Curl_cookie_cleanup(struct CookieInfo *c);
struct CookieInfo *Curl_cookie_init(struct Curl_easy *data,
const char *file, struct CookieInfo *inc,
bool newsession);
struct curl_slist *Curl_cookie_list(struct Curl_easy *data);
void Curl_cookie_loadfiles(struct Curl_easy *data);
#endif
#endif /* HEADER_CURL_COOKIE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/config-win32.h | #ifndef HEADER_CURL_CONFIG_WIN32_H
#define HEADER_CURL_CONFIG_WIN32_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* ================================================================ */
/* Hand crafted config file for Windows */
/* ================================================================ */
/* ---------------------------------------------------------------- */
/* HEADER FILES */
/* ---------------------------------------------------------------- */
/* Define if you have the <arpa/inet.h> header file. */
/* #define HAVE_ARPA_INET_H 1 */
/* Define if you have the <assert.h> header file. */
#define HAVE_ASSERT_H 1
/* Define if you have the <errno.h> header file. */
#define HAVE_ERRNO_H 1
/* Define if you have the <fcntl.h> header file. */
#define HAVE_FCNTL_H 1
/* Define if you have the <getopt.h> header file. */
#if defined(__MINGW32__) || defined(__POCC__)
#define HAVE_GETOPT_H 1
#endif
/* Define to 1 if you have the <inttypes.h> header file. */
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
#define HAVE_INTTYPES_H 1
#endif
/* Define if you have the <io.h> header file. */
#define HAVE_IO_H 1
/* Define if you have the <locale.h> header file. */
#define HAVE_LOCALE_H 1
/* Define if you need <malloc.h> header even with <stdlib.h> header file. */
#if !defined(__SALFORDC__) && !defined(__POCC__)
#define NEED_MALLOC_H 1
#endif
/* Define if you have the <netdb.h> header file. */
/* #define HAVE_NETDB_H 1 */
/* Define if you have the <netinet/in.h> header file. */
/* #define HAVE_NETINET_IN_H 1 */
/* Define if you have the <process.h> header file. */
#ifndef __SALFORDC__
#define HAVE_PROCESS_H 1
#endif
/* Define if you have the <signal.h> header file. */
#define HAVE_SIGNAL_H 1
/* Define if you have the <ssl.h> header file. */
/* #define HAVE_SSL_H 1 */
/* Define to 1 if you have the <stdbool.h> header file. */
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
#define HAVE_STDBOOL_H 1
#endif
/* Define if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define if you have the <sys/param.h> header file. */
/* #define HAVE_SYS_PARAM_H 1 */
/* Define if you have the <sys/select.h> header file. */
/* #define HAVE_SYS_SELECT_H 1 */
/* Define if you have the <sys/socket.h> header file. */
/* #define HAVE_SYS_SOCKET_H 1 */
/* Define if you have the <sys/sockio.h> header file. */
/* #define HAVE_SYS_SOCKIO_H 1 */
/* Define if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define if you have the <sys/time.h> header file. */
/* #define HAVE_SYS_TIME_H 1 */
/* Define if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define if you have the <sys/utime.h> header file. */
#ifndef __BORLANDC__
#define HAVE_SYS_UTIME_H 1
#endif
/* Define if you have the <termio.h> header file. */
/* #define HAVE_TERMIO_H 1 */
/* Define if you have the <termios.h> header file. */
/* #define HAVE_TERMIOS_H 1 */
/* Define if you have the <time.h> header file. */
#define HAVE_TIME_H 1
/* Define if you have the <unistd.h> header file. */
#if defined(__MINGW32__) || defined(__WATCOMC__) || defined(__LCC__) || \
defined(__POCC__)
#define HAVE_UNISTD_H 1
#endif
/* Define if you have the <windows.h> header file. */
#define HAVE_WINDOWS_H 1
/* Define if you have the <winsock2.h> header file. */
#ifndef __SALFORDC__
#define HAVE_WINSOCK2_H 1
#endif
/* Define if you have the <ws2tcpip.h> header file. */
#ifndef __SALFORDC__
#define HAVE_WS2TCPIP_H 1
#endif
/* ---------------------------------------------------------------- */
/* OTHER HEADER INFO */
/* ---------------------------------------------------------------- */
/* Define if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define if you can safely include both <sys/time.h> and <time.h>. */
/* #define TIME_WITH_SYS_TIME 1 */
/* Define to 1 if bool is an available type. */
#if defined(_MSC_VER) && (_MSC_VER >= 1800)
#define HAVE_BOOL_T 1
#endif
/* ---------------------------------------------------------------- */
/* FUNCTIONS */
/* ---------------------------------------------------------------- */
/* Define if you have the closesocket function. */
#define HAVE_CLOSESOCKET 1
/* Define if you don't have vprintf but do have _doprnt. */
/* #define HAVE_DOPRNT 1 */
/* Define if you have the ftruncate function. */
/* #define HAVE_FTRUNCATE 1 */
/* Define to 1 if you have the `getpeername' function. */
#define HAVE_GETPEERNAME 1
/* Define to 1 if you have the getsockname function. */
#define HAVE_GETSOCKNAME 1
/* Define if you have the gethostname function. */
#define HAVE_GETHOSTNAME 1
/* Define if you have the getpass function. */
/* #define HAVE_GETPASS 1 */
/* Define if you have the getservbyname function. */
#define HAVE_GETSERVBYNAME 1
/* Define if you have the getprotobyname function. */
#define HAVE_GETPROTOBYNAME
/* Define if you have the gettimeofday function. */
/* #define HAVE_GETTIMEOFDAY 1 */
/* Define if you have the inet_addr function. */
#define HAVE_INET_ADDR 1
/* Define if you have the ioctlsocket function. */
#define HAVE_IOCTLSOCKET 1
/* Define if you have a working ioctlsocket FIONBIO function. */
#define HAVE_IOCTLSOCKET_FIONBIO 1
/* Define if you have the RAND_screen function when using SSL. */
#define HAVE_RAND_SCREEN 1
/* Define if you have the `RAND_status' function when using SSL. */
#define HAVE_RAND_STATUS 1
/* Define if you have the `CRYPTO_cleanup_all_ex_data' function.
This is present in OpenSSL versions after 0.9.6b */
#define HAVE_CRYPTO_CLEANUP_ALL_EX_DATA 1
/* Define if you have the select function. */
#define HAVE_SELECT 1
/* Define if you have the setlocale function. */
#define HAVE_SETLOCALE 1
/* Define if you have the setmode function. */
#define HAVE_SETMODE 1
/* Define if you have the setvbuf function. */
#define HAVE_SETVBUF 1
/* Define if you have the socket function. */
#define HAVE_SOCKET 1
/* Define if you have the strcasecmp function. */
#ifdef __MINGW32__
#define HAVE_STRCASECMP 1
#endif
/* Define if you have the strdup function. */
#define HAVE_STRDUP 1
/* Define if you have the strftime function. */
#define HAVE_STRFTIME 1
/* Define if you have the stricmp function. */
#define HAVE_STRICMP 1
/* Define if you have the strnicmp function. */
#define HAVE_STRNICMP 1
/* Define if you have the strstr function. */
#define HAVE_STRSTR 1
/* Define if you have the strtoll function. */
#if defined(__MINGW32__) || defined(__WATCOMC__) || defined(__POCC__) || \
(defined(_MSC_VER) && (_MSC_VER >= 1800))
#define HAVE_STRTOLL 1
#endif
/* Define if you have the utime function. */
#ifndef __BORLANDC__
#define HAVE_UTIME 1
#endif
/* Define if you have the recv function. */
#define HAVE_RECV 1
/* Define to the type of arg 1 for recv. */
#define RECV_TYPE_ARG1 SOCKET
/* Define to the type of arg 2 for recv. */
#define RECV_TYPE_ARG2 char *
/* Define to the type of arg 3 for recv. */
#define RECV_TYPE_ARG3 int
/* Define to the type of arg 4 for recv. */
#define RECV_TYPE_ARG4 int
/* Define to the function return type for recv. */
#define RECV_TYPE_RETV int
/* Define if you have the recvfrom function. */
#define HAVE_RECVFROM 1
/* Define to the type of arg 1 for recvfrom. */
#define RECVFROM_TYPE_ARG1 SOCKET
/* Define to the type pointed by arg 2 for recvfrom. */
#define RECVFROM_TYPE_ARG2 char
/* Define to the type of arg 3 for recvfrom. */
#define RECVFROM_TYPE_ARG3 int
/* Define to the type of arg 4 for recvfrom. */
#define RECVFROM_TYPE_ARG4 int
/* Define to the type pointed by arg 5 for recvfrom. */
#define RECVFROM_TYPE_ARG5 struct sockaddr
/* Define to the type pointed by arg 6 for recvfrom. */
#define RECVFROM_TYPE_ARG6 int
/* Define to the function return type for recvfrom. */
#define RECVFROM_TYPE_RETV int
/* Define if you have the send function. */
#define HAVE_SEND 1
/* Define to the type of arg 1 for send. */
#define SEND_TYPE_ARG1 SOCKET
/* Define to the type qualifier of arg 2 for send. */
#define SEND_QUAL_ARG2 const
/* Define to the type of arg 2 for send. */
#define SEND_TYPE_ARG2 char *
/* Define to the type of arg 3 for send. */
#define SEND_TYPE_ARG3 int
/* Define to the type of arg 4 for send. */
#define SEND_TYPE_ARG4 int
/* Define to the function return type for send. */
#define SEND_TYPE_RETV int
/* ---------------------------------------------------------------- */
/* TYPEDEF REPLACEMENTS */
/* ---------------------------------------------------------------- */
/* Define if in_addr_t is not an available 'typedefed' type. */
#define in_addr_t unsigned long
/* Define if ssize_t is not an available 'typedefed' type. */
#ifndef _SSIZE_T_DEFINED
# if (defined(__WATCOMC__) && (__WATCOMC__ >= 1240)) || \
defined(__POCC__) || \
defined(__MINGW32__)
# elif defined(_WIN64)
# define _SSIZE_T_DEFINED
# define ssize_t __int64
# else
# define _SSIZE_T_DEFINED
# define ssize_t int
# endif
#endif
/* ---------------------------------------------------------------- */
/* TYPE SIZES */
/* ---------------------------------------------------------------- */
/* Define to the size of `int', as computed by sizeof. */
#define SIZEOF_INT 4
/* Define to the size of `long double', as computed by sizeof. */
#define SIZEOF_LONG_DOUBLE 16
/* Define to the size of `long long', as computed by sizeof. */
/* #define SIZEOF_LONG_LONG 8 */
/* Define to the size of `short', as computed by sizeof. */
#define SIZEOF_SHORT 2
/* Define to the size of `long', as computed by sizeof. */
#define SIZEOF_LONG 4
/* Define to the size of `size_t', as computed by sizeof. */
#if defined(_WIN64)
# define SIZEOF_SIZE_T 8
#else
# define SIZEOF_SIZE_T 4
#endif
/* Define to the size of `curl_off_t', as computed by sizeof. */
#define SIZEOF_CURL_OFF_T 8
/* ---------------------------------------------------------------- */
/* BSD-style lwIP TCP/IP stack SPECIFIC */
/* ---------------------------------------------------------------- */
/* Define to use BSD-style lwIP TCP/IP stack. */
/* #define USE_LWIPSOCK 1 */
#ifdef USE_LWIPSOCK
# undef USE_WINSOCK
# undef HAVE_WINSOCK2_H
# undef HAVE_WS2TCPIP_H
# undef HAVE_ERRNO_H
# undef HAVE_GETHOSTNAME
# undef LWIP_POSIX_SOCKETS_IO_NAMES
# undef RECV_TYPE_ARG1
# undef RECV_TYPE_ARG3
# undef SEND_TYPE_ARG1
# undef SEND_TYPE_ARG3
# define HAVE_FREEADDRINFO
# define HAVE_GETADDRINFO
# define HAVE_GETHOSTBYNAME
# define HAVE_GETHOSTBYNAME_R
# define HAVE_GETHOSTBYNAME_R_6
# define LWIP_POSIX_SOCKETS_IO_NAMES 0
# define RECV_TYPE_ARG1 int
# define RECV_TYPE_ARG3 size_t
# define SEND_TYPE_ARG1 int
# define SEND_TYPE_ARG3 size_t
#endif
/* ---------------------------------------------------------------- */
/* Watt-32 tcp/ip SPECIFIC */
/* ---------------------------------------------------------------- */
#ifdef USE_WATT32
#include <tcp.h>
#undef byte
#undef word
#undef USE_WINSOCK
#undef HAVE_WINSOCK2_H
#undef HAVE_WS2TCPIP_H
#define HAVE_GETADDRINFO
#define HAVE_SYS_IOCTL_H
#define HAVE_SYS_SOCKET_H
#define HAVE_NETINET_IN_H
#define HAVE_NETDB_H
#define HAVE_ARPA_INET_H
#define HAVE_FREEADDRINFO
#define SOCKET int
#endif
/* ---------------------------------------------------------------- */
/* COMPILER SPECIFIC */
/* ---------------------------------------------------------------- */
/* Define to nothing if compiler does not support 'const' qualifier. */
/* #define const */
/* Define to nothing if compiler does not support 'volatile' qualifier. */
/* #define volatile */
/* Windows should not have HAVE_GMTIME_R defined */
/* #undef HAVE_GMTIME_R */
/* Define if the compiler supports C99 variadic macro style. */
#if defined(_MSC_VER) && (_MSC_VER >= 1400)
#define HAVE_VARIADIC_MACROS_C99 1
#endif
/* Define if the compiler supports the 'long long' data type. */
#if defined(__MINGW32__) || defined(__WATCOMC__) || \
(defined(_MSC_VER) && (_MSC_VER >= 1310)) || \
(defined(__BORLANDC__) && (__BORLANDC__ >= 0x561))
#define HAVE_LONGLONG 1
#endif
/* Define to avoid VS2005 complaining about portable C functions. */
#if defined(_MSC_VER) && (_MSC_VER >= 1400)
#define _CRT_SECURE_NO_DEPRECATE 1
#define _CRT_NONSTDC_NO_DEPRECATE 1
#endif
/* mingw-w64, mingw using >= MSVCR80, and visual studio >= 2005 (MSVCR80)
all default to 64-bit time_t unless _USE_32BIT_TIME_T is defined */
#ifdef __MINGW32__
# include <_mingw.h>
#endif
#if defined(__MINGW64_VERSION_MAJOR) || \
(defined(__MINGW32__) && (__MSVCRT_VERSION__ >= 0x0800)) || \
(defined(_MSC_VER) && (_MSC_VER >= 1400))
# ifndef _USE_32BIT_TIME_T
# define SIZEOF_TIME_T 8
# else
# define SIZEOF_TIME_T 4
# endif
#endif
/* Define some minimum and default build targets for Visual Studio */
#if defined(_MSC_VER)
/* Officially, Microsoft's Windows SDK versions 6.X does not support Windows
2000 as a supported build target. VS2008 default installations provides
an embedded Windows SDK v6.0A along with the claim that Windows 2000 is a
valid build target for VS2008. Popular belief is that binaries built with
VS2008 using Windows SDK versions v6.X and Windows 2000 as a build target
are functional. */
# define VS2008_MIN_TARGET 0x0500
/* The minimum build target for VS2012 is Vista unless Update 1 is installed
and the v110_xp toolset is chosen. */
# if defined(_USING_V110_SDK71_)
# define VS2012_MIN_TARGET 0x0501
# else
# define VS2012_MIN_TARGET 0x0600
# endif
/* VS2008 default build target is Windows Vista. We override default target
to be Windows XP. */
# define VS2008_DEF_TARGET 0x0501
/* VS2012 default build target is Windows Vista unless Update 1 is installed
and the v110_xp toolset is chosen. */
# if defined(_USING_V110_SDK71_)
# define VS2012_DEF_TARGET 0x0501
# else
# define VS2012_DEF_TARGET 0x0600
# endif
#endif
/* VS2008 default target settings and minimum build target check. */
#if defined(_MSC_VER) && (_MSC_VER >= 1500) && (_MSC_VER <= 1600)
# ifndef _WIN32_WINNT
# define _WIN32_WINNT VS2008_DEF_TARGET
# endif
# ifndef WINVER
# define WINVER VS2008_DEF_TARGET
# endif
# if (_WIN32_WINNT < VS2008_MIN_TARGET) || (WINVER < VS2008_MIN_TARGET)
# error VS2008 does not support Windows build targets prior to Windows 2000
# endif
#endif
/* VS2012 default target settings and minimum build target check. */
#if defined(_MSC_VER) && (_MSC_VER >= 1700)
# ifndef _WIN32_WINNT
# define _WIN32_WINNT VS2012_DEF_TARGET
# endif
# ifndef WINVER
# define WINVER VS2012_DEF_TARGET
# endif
# if (_WIN32_WINNT < VS2012_MIN_TARGET) || (WINVER < VS2012_MIN_TARGET)
# if defined(_USING_V110_SDK71_)
# error VS2012 does not support Windows build targets prior to Windows XP
# else
# error VS2012 does not support Windows build targets prior to Windows \
Vista
# endif
# endif
#endif
/* When no build target is specified Pelles C 5.00 and later default build
target is Windows Vista. We override default target to be Windows 2000. */
#if defined(__POCC__) && (__POCC__ >= 500)
# ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0500
# endif
# ifndef WINVER
# define WINVER 0x0500
# endif
#endif
/* Availability of freeaddrinfo, getaddrinfo, and if_nametoindex
functions is quite convoluted, compiler dependent and even build target
dependent. */
#if defined(HAVE_WS2TCPIP_H)
# if defined(__POCC__)
# define HAVE_FREEADDRINFO 1
# define HAVE_GETADDRINFO 1
# define HAVE_GETADDRINFO_THREADSAFE 1
# elif defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
# define HAVE_FREEADDRINFO 1
# define HAVE_GETADDRINFO 1
# define HAVE_GETADDRINFO_THREADSAFE 1
# elif defined(_MSC_VER) && (_MSC_VER >= 1200)
# define HAVE_FREEADDRINFO 1
# define HAVE_GETADDRINFO 1
# define HAVE_GETADDRINFO_THREADSAFE 1
# endif
#endif
#if defined(__POCC__)
# ifndef _MSC_VER
# error Microsoft extensions /Ze compiler option is required
# endif
# ifndef __POCC__OLDNAMES
# error Compatibility names /Go compiler option is required
# endif
#endif
/* ---------------------------------------------------------------- */
/* STRUCT RELATED */
/* ---------------------------------------------------------------- */
/* Define if you have struct sockaddr_storage. */
#if !defined(__SALFORDC__) && !defined(__BORLANDC__)
#define HAVE_STRUCT_SOCKADDR_STORAGE 1
#endif
/* Define if you have struct timeval. */
#define HAVE_STRUCT_TIMEVAL 1
/* Define if struct sockaddr_in6 has the sin6_scope_id member. */
#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
#if defined(HAVE_WINSOCK2_H) && defined(_WIN32_WINNT) && \
(_WIN32_WINNT >= 0x0600)
#define HAVE_STRUCT_POLLFD 1
#endif
/* ---------------------------------------------------------------- */
/* LARGE FILE SUPPORT */
/* ---------------------------------------------------------------- */
#if defined(_MSC_VER) && !defined(_WIN32_WCE)
# if (_MSC_VER >= 900) && (_INTEGRAL_MAX_BITS >= 64)
# define USE_WIN32_LARGE_FILES
# else
# define USE_WIN32_SMALL_FILES
# endif
#endif
#if defined(__MINGW32__) && !defined(USE_WIN32_LARGE_FILES)
# define USE_WIN32_LARGE_FILES
#endif
#if defined(__WATCOMC__) && !defined(USE_WIN32_LARGE_FILES)
# define USE_WIN32_LARGE_FILES
#endif
#if defined(__POCC__)
# undef USE_WIN32_LARGE_FILES
#endif
#if !defined(USE_WIN32_LARGE_FILES) && !defined(USE_WIN32_SMALL_FILES)
# define USE_WIN32_SMALL_FILES
#endif
/* ---------------------------------------------------------------- */
/* DNS RESOLVER SPECIALTY */
/* ---------------------------------------------------------------- */
/*
* Undefine both USE_ARES and USE_THREADS_WIN32 for synchronous DNS.
*/
/* Define to enable c-ares asynchronous DNS lookups. */
/* #define USE_ARES 1 */
/* Default define to enable threaded asynchronous DNS lookups. */
#if !defined(USE_SYNC_DNS) && !defined(USE_ARES) && \
!defined(USE_THREADS_WIN32)
# define USE_THREADS_WIN32 1
#endif
#if defined(USE_ARES) && defined(USE_THREADS_WIN32)
# error "Only one DNS lookup specialty may be defined at most"
#endif
/* ---------------------------------------------------------------- */
/* LDAP SUPPORT */
/* ---------------------------------------------------------------- */
#if defined(CURL_HAS_NOVELL_LDAPSDK) || defined(CURL_HAS_MOZILLA_LDAPSDK)
#undef USE_WIN32_LDAP
#define HAVE_LDAP_SSL_H 1
#define HAVE_LDAP_URL_PARSE 1
#elif defined(CURL_HAS_OPENLDAP_LDAPSDK)
#undef USE_WIN32_LDAP
#define HAVE_LDAP_URL_PARSE 1
#else
#undef HAVE_LDAP_URL_PARSE
#define HAVE_LDAP_SSL 1
#define USE_WIN32_LDAP 1
#endif
#if defined(__WATCOMC__) && defined(USE_WIN32_LDAP)
#if __WATCOMC__ < 1280
#define WINBERAPI __declspec(cdecl)
#define WINLDAPAPI __declspec(cdecl)
#endif
#endif
#if defined(__POCC__) && defined(USE_WIN32_LDAP)
# define CURL_DISABLE_LDAP 1
#endif
/* Define to use the Windows crypto library. */
#if !defined(CURL_WINDOWS_APP)
#define USE_WIN32_CRYPTO
#endif
/* Define to use Unix sockets. */
#define USE_UNIX_SOCKETS
/* ---------------------------------------------------------------- */
/* ADDITIONAL DEFINITIONS */
/* ---------------------------------------------------------------- */
/* Define cpu-machine-OS */
#undef OS
#if defined(_M_IX86) || defined(__i386__) /* x86 (MSVC or gcc) */
#define OS "i386-pc-win32"
#elif defined(_M_X64) || defined(__x86_64__) /* x86_64 (MSVC >=2005 or gcc) */
#define OS "x86_64-pc-win32"
#elif defined(_M_IA64) || defined(__ia64__) /* Itanium */
#define OS "ia64-pc-win32"
#elif defined(_M_ARM_NT) || defined(__arm__) /* ARMv7-Thumb2 (Windows RT) */
#define OS "thumbv7a-pc-win32"
#elif defined(_M_ARM64) || defined(__aarch64__) /* ARM64 (Windows 10) */
#define OS "aarch64-pc-win32"
#else
#define OS "unknown-pc-win32"
#endif
/* Name of package */
#define PACKAGE "curl"
/* If you want to build curl with the built-in manual */
#define USE_MANUAL 1
#if defined(__POCC__) || defined(USE_IPV6)
# define ENABLE_IPV6 1
#endif
#endif /* HEADER_CURL_CONFIG_WIN32_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/getenv.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_memory.h"
#include "memdebug.h"
static char *GetEnv(const char *variable)
{
#if defined(_WIN32_WCE) || defined(CURL_WINDOWS_APP)
(void)variable;
return NULL;
#elif defined(WIN32)
/* This uses Windows API instead of C runtime getenv() to get the environment
variable since some changes aren't always visible to the latter. #4774 */
char *buf = NULL;
char *tmp;
DWORD bufsize;
DWORD rc = 1;
const DWORD max = 32768; /* max env var size from MSCRT source */
for(;;) {
tmp = realloc(buf, rc);
if(!tmp) {
free(buf);
return NULL;
}
buf = tmp;
bufsize = rc;
/* It's possible for rc to be 0 if the variable was found but empty.
Since getenv doesn't make that distinction we ignore it as well. */
rc = GetEnvironmentVariableA(variable, buf, bufsize);
if(!rc || rc == bufsize || rc > max) {
free(buf);
return NULL;
}
/* if rc < bufsize then rc is bytes written not including null */
if(rc < bufsize)
return buf;
/* else rc is bytes needed, try again */
}
#else
char *env = getenv(variable);
return (env && env[0])?strdup(env):NULL;
#endif
}
char *curl_getenv(const char *v)
{
return GetEnv(v);
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostcheck.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_OPENSSL) \
|| defined(USE_GSKIT) \
|| defined(USE_SCHANNEL)
/* these backends use functions from this file */
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#include "hostcheck.h"
#include "strcase.h"
#include "hostip.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Match a hostname against a wildcard pattern.
* E.g.
* "foo.host.com" matches "*.host.com".
*
* We use the matching rule described in RFC6125, section 6.4.3.
* https://tools.ietf.org/html/rfc6125#section-6.4.3
*
* In addition: ignore trailing dots in the host names and wildcards, so that
* the names are used normalized. This is what the browsers do.
*
* Do not allow wildcard matching on IP numbers. There are apparently
* certificates being used with an IP address in the CN field, thus making no
* apparent distinction between a name and an IP. We need to detect the use of
* an IP address and not wildcard match on such names.
*
* NOTE: hostmatch() gets called with copied buffers so that it can modify the
* contents at will.
*/
static int hostmatch(char *hostname, char *pattern)
{
const char *pattern_label_end, *pattern_wildcard, *hostname_label_end;
int wildcard_enabled;
size_t prefixlen, suffixlen;
/* normalize pattern and hostname by stripping off trailing dots */
size_t len = strlen(hostname);
if(hostname[len-1]=='.')
hostname[len-1] = 0;
len = strlen(pattern);
if(pattern[len-1]=='.')
pattern[len-1] = 0;
pattern_wildcard = strchr(pattern, '*');
if(!pattern_wildcard)
return strcasecompare(pattern, hostname) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
/* detect IP address as hostname and fail the match if so */
if(Curl_host_is_ipnum(hostname))
return CURL_HOST_NOMATCH;
/* We require at least 2 dots in pattern to avoid too wide wildcard
match. */
wildcard_enabled = 1;
pattern_label_end = strchr(pattern, '.');
if(!pattern_label_end || strchr(pattern_label_end + 1, '.') == NULL ||
pattern_wildcard > pattern_label_end ||
strncasecompare(pattern, "xn--", 4)) {
wildcard_enabled = 0;
}
if(!wildcard_enabled)
return strcasecompare(pattern, hostname) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
hostname_label_end = strchr(hostname, '.');
if(!hostname_label_end ||
!strcasecompare(pattern_label_end, hostname_label_end))
return CURL_HOST_NOMATCH;
/* The wildcard must match at least one character, so the left-most
label of the hostname is at least as large as the left-most label
of the pattern. */
if(hostname_label_end - hostname < pattern_label_end - pattern)
return CURL_HOST_NOMATCH;
prefixlen = pattern_wildcard - pattern;
suffixlen = pattern_label_end - (pattern_wildcard + 1);
return strncasecompare(pattern, hostname, prefixlen) &&
strncasecompare(pattern_wildcard + 1, hostname_label_end - suffixlen,
suffixlen) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
}
int Curl_cert_hostcheck(const char *match_pattern, const char *hostname)
{
int res = 0;
if(!match_pattern || !*match_pattern ||
!hostname || !*hostname) /* sanity check */
;
else {
char *matchp = strdup(match_pattern);
if(matchp) {
char *hostp = strdup(hostname);
if(hostp) {
if(hostmatch(hostp, matchp) == CURL_HOST_MATCH)
res = 1;
free(hostp);
}
free(matchp);
}
}
return res;
}
#endif /* OPENSSL, GSKIT or schannel+wince */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/rtsp.h | #ifndef HEADER_CURL_RTSP_H
#define HEADER_CURL_RTSP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifdef USE_HYPER
#define CURL_DISABLE_RTSP 1
#endif
#ifndef CURL_DISABLE_RTSP
extern const struct Curl_handler Curl_handler_rtsp;
CURLcode Curl_rtsp_parseheader(struct Curl_easy *data, char *header);
#else
/* disabled */
#define Curl_rtsp_parseheader(x,y) CURLE_NOT_BUILT_IN
#endif /* CURL_DISABLE_RTSP */
/*
* RTSP Connection data
*
* Currently, only used for tracking incomplete RTP data reads
*/
struct rtsp_conn {
char *rtp_buf;
ssize_t rtp_bufsize;
int rtp_channel;
};
/****************************************************************************
* RTSP unique setup
***************************************************************************/
struct RTSP {
/*
* http_wrapper MUST be the first element of this structure for the wrap
* logic to work. In this way, we get a cheap polymorphism because
* &(data->state.proto.rtsp) == &(data->state.proto.http) per the C spec
*
* HTTP functions can safely treat this as an HTTP struct, but RTSP aware
* functions can also index into the later elements.
*/
struct HTTP http_wrapper; /*wrap HTTP to do the heavy lifting */
long CSeq_sent; /* CSeq of this request */
long CSeq_recv; /* CSeq received */
};
#endif /* HEADER_CURL_RTSP_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/splay.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1997 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "splay.h"
/*
* This macro compares two node keys i and j and returns:
*
* negative value: when i is smaller than j
* zero : when i is equal to j
* positive when : when i is larger than j
*/
#define compare(i,j) Curl_splaycomparekeys((i),(j))
/*
* Splay using the key i (which may or may not be in the tree.) The starting
* root is t.
*/
struct Curl_tree *Curl_splay(struct curltime i,
struct Curl_tree *t)
{
struct Curl_tree N, *l, *r, *y;
if(!t)
return t;
N.smaller = N.larger = NULL;
l = r = &N;
for(;;) {
long comp = compare(i, t->key);
if(comp < 0) {
if(!t->smaller)
break;
if(compare(i, t->smaller->key) < 0) {
y = t->smaller; /* rotate smaller */
t->smaller = y->larger;
y->larger = t;
t = y;
if(!t->smaller)
break;
}
r->smaller = t; /* link smaller */
r = t;
t = t->smaller;
}
else if(comp > 0) {
if(!t->larger)
break;
if(compare(i, t->larger->key) > 0) {
y = t->larger; /* rotate larger */
t->larger = y->smaller;
y->smaller = t;
t = y;
if(!t->larger)
break;
}
l->larger = t; /* link larger */
l = t;
t = t->larger;
}
else
break;
}
l->larger = t->smaller; /* assemble */
r->smaller = t->larger;
t->smaller = N.larger;
t->larger = N.smaller;
return t;
}
/* Insert key i into the tree t. Return a pointer to the resulting tree or
* NULL if something went wrong.
*
* @unittest: 1309
*/
struct Curl_tree *Curl_splayinsert(struct curltime i,
struct Curl_tree *t,
struct Curl_tree *node)
{
static const struct curltime KEY_NOTUSED = {
(time_t)-1, (unsigned int)-1
}; /* will *NEVER* appear */
if(!node)
return t;
if(t != NULL) {
t = Curl_splay(i, t);
if(compare(i, t->key) == 0) {
/* There already exists a node in the tree with the very same key. Build
a doubly-linked circular list of nodes. We add the new 'node' struct
to the end of this list. */
node->key = KEY_NOTUSED; /* we set the key in the sub node to NOTUSED
to quickly identify this node as a subnode */
node->samen = t;
node->samep = t->samep;
t->samep->samen = node;
t->samep = node;
return t; /* the root node always stays the same */
}
}
if(!t) {
node->smaller = node->larger = NULL;
}
else if(compare(i, t->key) < 0) {
node->smaller = t->smaller;
node->larger = t;
t->smaller = NULL;
}
else {
node->larger = t->larger;
node->smaller = t;
t->larger = NULL;
}
node->key = i;
/* no identical nodes (yet), we are the only one in the list of nodes */
node->samen = node;
node->samep = node;
return node;
}
/* Finds and deletes the best-fit node from the tree. Return a pointer to the
resulting tree. best-fit means the smallest node if it is not larger than
the key */
struct Curl_tree *Curl_splaygetbest(struct curltime i,
struct Curl_tree *t,
struct Curl_tree **removed)
{
static const struct curltime tv_zero = {0, 0};
struct Curl_tree *x;
if(!t) {
*removed = NULL; /* none removed since there was no root */
return NULL;
}
/* find smallest */
t = Curl_splay(tv_zero, t);
if(compare(i, t->key) < 0) {
/* even the smallest is too big */
*removed = NULL;
return t;
}
/* FIRST! Check if there is a list with identical keys */
x = t->samen;
if(x != t) {
/* there is, pick one from the list */
/* 'x' is the new root node */
x->key = t->key;
x->larger = t->larger;
x->smaller = t->smaller;
x->samep = t->samep;
t->samep->samen = x;
*removed = t;
return x; /* new root */
}
/* we splayed the tree to the smallest element, there is no smaller */
x = t->larger;
*removed = t;
return x;
}
/* Deletes the very node we point out from the tree if it's there. Stores a
* pointer to the new resulting tree in 'newroot'.
*
* Returns zero on success and non-zero on errors!
* When returning error, it does not touch the 'newroot' pointer.
*
* NOTE: when the last node of the tree is removed, there's no tree left so
* 'newroot' will be made to point to NULL.
*
* @unittest: 1309
*/
int Curl_splayremove(struct Curl_tree *t,
struct Curl_tree *removenode,
struct Curl_tree **newroot)
{
static const struct curltime KEY_NOTUSED = {
(time_t)-1, (unsigned int)-1
}; /* will *NEVER* appear */
struct Curl_tree *x;
if(!t || !removenode)
return 1;
if(compare(KEY_NOTUSED, removenode->key) == 0) {
/* Key set to NOTUSED means it is a subnode within a 'same' linked list
and thus we can unlink it easily. */
if(removenode->samen == removenode)
/* A non-subnode should never be set to KEY_NOTUSED */
return 3;
removenode->samep->samen = removenode->samen;
removenode->samen->samep = removenode->samep;
/* Ensures that double-remove gets caught. */
removenode->samen = removenode;
*newroot = t; /* return the same root */
return 0;
}
t = Curl_splay(removenode->key, t);
/* First make sure that we got the same root node as the one we want
to remove, as otherwise we might be trying to remove a node that
isn't actually in the tree.
We cannot just compare the keys here as a double remove in quick
succession of a node with key != KEY_NOTUSED && same != NULL
could return the same key but a different node. */
if(t != removenode)
return 2;
/* Check if there is a list with identical sizes, as then we're trying to
remove the root node of a list of nodes with identical keys. */
x = t->samen;
if(x != t) {
/* 'x' is the new root node, we just make it use the root node's
smaller/larger links */
x->key = t->key;
x->larger = t->larger;
x->smaller = t->smaller;
x->samep = t->samep;
t->samep->samen = x;
}
else {
/* Remove the root node */
if(!t->smaller)
x = t->larger;
else {
x = Curl_splay(removenode->key, t->smaller);
x->larger = t->larger;
}
}
*newroot = x; /* store new root pointer */
return 0;
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_base64.h | #ifndef HEADER_CURL_BASE64_H
#define HEADER_CURL_BASE64_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
CURLcode Curl_base64_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen);
CURLcode Curl_base64url_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen);
CURLcode Curl_base64_decode(const char *src,
unsigned char **outptr, size_t *outlen);
#endif /* HEADER_CURL_BASE64_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/system_win32.h | #ifndef HEADER_CURL_SYSTEM_WIN32_H
#define HEADER_CURL_SYSTEM_WIN32_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2016 - 2020, Steve Holme, <[email protected]>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(WIN32)
extern LARGE_INTEGER Curl_freq;
extern bool Curl_isVistaOrGreater;
CURLcode Curl_win32_init(long flags);
void Curl_win32_cleanup(long init_flags);
/* We use our own typedef here since some headers might lack this */
typedef unsigned int(WINAPI *IF_NAMETOINDEX_FN)(const char *);
/* This is used instead of if_nametoindex if available on Windows */
extern IF_NAMETOINDEX_FN Curl_if_nametoindex;
/* This is used to dynamically load DLLs */
HMODULE Curl_load_library(LPCTSTR filename);
#endif /* WIN32 */
#endif /* HEADER_CURL_SYSTEM_WIN32_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/libcurl.rc | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <winver.h>
#include "../include/curl/curlver.h"
LANGUAGE 0, 0
#define RC_VERSION LIBCURL_VERSION_MAJOR, LIBCURL_VERSION_MINOR, LIBCURL_VERSION_PATCH, 0
VS_VERSION_INFO VERSIONINFO
FILEVERSION RC_VERSION
PRODUCTVERSION RC_VERSION
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
#if defined(DEBUGBUILD) || defined(_DEBUG)
FILEFLAGS VS_FF_DEBUG
#else
FILEFLAGS 0L
#endif
FILEOS VOS__WINDOWS32
FILETYPE VFT_DLL
FILESUBTYPE 0L
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904b0"
BEGIN
VALUE "CompanyName", "The curl library, https://curl.se/\0"
VALUE "FileDescription", "libcurl Shared Library\0"
VALUE "FileVersion", LIBCURL_VERSION "\0"
VALUE "InternalName", "libcurl\0"
VALUE "OriginalFilename", "libcurl.dll\0"
VALUE "ProductName", "The curl library\0"
VALUE "ProductVersion", LIBCURL_VERSION "\0"
VALUE "LegalCopyright", "Copyright (C) " LIBCURL_COPYRIGHT "\0"
VALUE "License", "https://curl.se/docs/copyright.html\0"
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x409, 1200
END
END
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_hmac.h | #ifndef HEADER_CURL_HMAC_H
#define HEADER_CURL_HMAC_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
#define HMAC_MD5_LENGTH 16
typedef void (* HMAC_hinit_func)(void *context);
typedef void (* HMAC_hupdate_func)(void *context,
const unsigned char *data,
unsigned int len);
typedef void (* HMAC_hfinal_func)(unsigned char *result, void *context);
/* Per-hash function HMAC parameters. */
struct HMAC_params {
HMAC_hinit_func
hmac_hinit; /* Initialize context procedure. */
HMAC_hupdate_func hmac_hupdate; /* Update context with data. */
HMAC_hfinal_func hmac_hfinal; /* Get final result procedure. */
unsigned int hmac_ctxtsize; /* Context structure size. */
unsigned int hmac_maxkeylen; /* Maximum key length (bytes). */
unsigned int hmac_resultlen; /* Result length (bytes). */
};
/* HMAC computation context. */
struct HMAC_context {
const struct HMAC_params *hmac_hash; /* Hash function definition. */
void *hmac_hashctxt1; /* Hash function context 1. */
void *hmac_hashctxt2; /* Hash function context 2. */
};
/* Prototypes. */
struct HMAC_context *Curl_HMAC_init(const struct HMAC_params *hashparams,
const unsigned char *key,
unsigned int keylen);
int Curl_HMAC_update(struct HMAC_context *context,
const unsigned char *data,
unsigned int len);
int Curl_HMAC_final(struct HMAC_context *context, unsigned char *result);
CURLcode Curl_hmacit(const struct HMAC_params *hashparams,
const unsigned char *key, const size_t keylen,
const unsigned char *data, const size_t datalen,
unsigned char *output);
#endif
#endif /* HEADER_CURL_HMAC_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/http2.h | #ifndef HEADER_CURL_HTTP2_H
#define HEADER_CURL_HTTP2_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_NGHTTP2
#include "http.h"
/* value for MAX_CONCURRENT_STREAMS we use until we get an updated setting
from the peer */
#define DEFAULT_MAX_CONCURRENT_STREAMS 100
/*
* Store nghttp2 version info in this buffer.
*/
void Curl_http2_ver(char *p, size_t len);
const char *Curl_http2_strerror(uint32_t err);
CURLcode Curl_http2_init(struct connectdata *conn);
void Curl_http2_init_state(struct UrlState *state);
void Curl_http2_init_userset(struct UserDefined *set);
CURLcode Curl_http2_request_upgrade(struct dynbuf *req,
struct Curl_easy *data);
CURLcode Curl_http2_setup(struct Curl_easy *data, struct connectdata *conn);
CURLcode Curl_http2_switched(struct Curl_easy *data,
const char *ptr, size_t nread);
/* called from http_setup_conn */
void Curl_http2_setup_conn(struct connectdata *conn);
void Curl_http2_setup_req(struct Curl_easy *data);
void Curl_http2_done(struct Curl_easy *data, bool premature);
CURLcode Curl_http2_done_sending(struct Curl_easy *data,
struct connectdata *conn);
CURLcode Curl_http2_add_child(struct Curl_easy *parent,
struct Curl_easy *child,
bool exclusive);
void Curl_http2_remove_child(struct Curl_easy *parent,
struct Curl_easy *child);
void Curl_http2_cleanup_dependencies(struct Curl_easy *data);
CURLcode Curl_http2_stream_pause(struct Curl_easy *data, bool pause);
/* returns true if the HTTP/2 stream error was HTTP_1_1_REQUIRED */
bool Curl_h2_http_1_1_error(struct Curl_easy *data);
#else /* USE_NGHTTP2 */
#define Curl_http2_request_upgrade(x,y) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup(x,y) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_switched(x,y,z) CURLE_UNSUPPORTED_PROTOCOL
#define Curl_http2_setup_conn(x) Curl_nop_stmt
#define Curl_http2_setup_req(x)
#define Curl_http2_init_state(x)
#define Curl_http2_init_userset(x)
#define Curl_http2_done(x,y)
#define Curl_http2_done_sending(x,y)
#define Curl_http2_add_child(x, y, z)
#define Curl_http2_remove_child(x, y)
#define Curl_http2_cleanup_dependencies(x)
#define Curl_http2_stream_pause(x, y)
#define Curl_h2_http_1_1_error(x) 0
#endif
#endif /* HEADER_CURL_HTTP2_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/wildcard.h | #ifndef HEADER_CURL_WILDCARD_H
#define HEADER_CURL_WILDCARD_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#include "llist.h"
/* list of wildcard process states */
typedef enum {
CURLWC_CLEAR = 0,
CURLWC_INIT = 1,
CURLWC_MATCHING, /* library is trying to get list of addresses for
downloading */
CURLWC_DOWNLOADING,
CURLWC_CLEAN, /* deallocate resources and reset settings */
CURLWC_SKIP, /* skip over concrete file */
CURLWC_ERROR, /* error cases */
CURLWC_DONE /* if is wildcard->state == CURLWC_DONE wildcard loop
will end */
} wildcard_states;
typedef void (*wildcard_dtor)(void *ptr);
/* struct keeping information about wildcard download process */
struct WildcardData {
wildcard_states state;
char *path; /* path to the directory, where we trying wildcard-match */
char *pattern; /* wildcard pattern */
struct Curl_llist filelist; /* llist with struct Curl_fileinfo */
void *protdata; /* pointer to protocol specific temporary data */
wildcard_dtor dtor;
void *customptr; /* for CURLOPT_CHUNK_DATA pointer */
};
CURLcode Curl_wildcard_init(struct WildcardData *wc);
void Curl_wildcard_dtor(struct WildcardData *wc);
struct Curl_easy;
#else
/* FTP is disabled */
#define Curl_wildcard_dtor(x)
#endif
#endif /* HEADER_CURL_WILDCARD_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/rename.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "rename.h"
#include "curl_setup.h"
#if (!defined(CURL_DISABLE_HTTP) || !defined(CURL_DISABLE_COOKIES)) || \
!defined(CURL_DISABLE_ALTSVC)
#include "curl_multibyte.h"
#include "timeval.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* return 0 on success, 1 on error */
int Curl_rename(const char *oldpath, const char *newpath)
{
#ifdef WIN32
/* rename() on Windows doesn't overwrite, so we can't use it here.
MoveFileEx() will overwrite and is usually atomic, however it fails
when there are open handles to the file. */
const int max_wait_ms = 1000;
struct curltime start = Curl_now();
TCHAR *tchar_oldpath = curlx_convert_UTF8_to_tchar((char *)oldpath);
TCHAR *tchar_newpath = curlx_convert_UTF8_to_tchar((char *)newpath);
for(;;) {
timediff_t diff;
if(MoveFileEx(tchar_oldpath, tchar_newpath, MOVEFILE_REPLACE_EXISTING)) {
curlx_unicodefree(tchar_oldpath);
curlx_unicodefree(tchar_newpath);
break;
}
diff = Curl_timediff(Curl_now(), start);
if(diff < 0 || diff > max_wait_ms) {
curlx_unicodefree(tchar_oldpath);
curlx_unicodefree(tchar_newpath);
return 1;
}
Sleep(1);
}
#else
if(rename(oldpath, newpath))
return 1;
#endif
return 0;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostcheck.h | #ifndef HEADER_CURL_HOSTCHECK_H
#define HEADER_CURL_HOSTCHECK_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h>
#define CURL_HOST_NOMATCH 0
#define CURL_HOST_MATCH 1
int Curl_cert_hostcheck(const char *match_pattern, const char *hostname);
#endif /* HEADER_CURL_HOSTCHECK_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/tftp.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_TFTP
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "tftp.h"
#include "progress.h"
#include "connect.h"
#include "strerror.h"
#include "sockaddr.h" /* required for Curl_sockaddr_storage */
#include "multiif.h"
#include "url.h"
#include "strcase.h"
#include "speedcheck.h"
#include "select.h"
#include "escape.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* RFC2348 allows the block size to be negotiated */
#define TFTP_BLKSIZE_DEFAULT 512
#define TFTP_BLKSIZE_MIN 8
#define TFTP_BLKSIZE_MAX 65464
#define TFTP_OPTION_BLKSIZE "blksize"
/* from RFC2349: */
#define TFTP_OPTION_TSIZE "tsize"
#define TFTP_OPTION_INTERVAL "timeout"
typedef enum {
TFTP_MODE_NETASCII = 0,
TFTP_MODE_OCTET
} tftp_mode_t;
typedef enum {
TFTP_STATE_START = 0,
TFTP_STATE_RX,
TFTP_STATE_TX,
TFTP_STATE_FIN
} tftp_state_t;
typedef enum {
TFTP_EVENT_NONE = -1,
TFTP_EVENT_INIT = 0,
TFTP_EVENT_RRQ = 1,
TFTP_EVENT_WRQ = 2,
TFTP_EVENT_DATA = 3,
TFTP_EVENT_ACK = 4,
TFTP_EVENT_ERROR = 5,
TFTP_EVENT_OACK = 6,
TFTP_EVENT_TIMEOUT
} tftp_event_t;
typedef enum {
TFTP_ERR_UNDEF = 0,
TFTP_ERR_NOTFOUND,
TFTP_ERR_PERM,
TFTP_ERR_DISKFULL,
TFTP_ERR_ILLEGAL,
TFTP_ERR_UNKNOWNID,
TFTP_ERR_EXISTS,
TFTP_ERR_NOSUCHUSER, /* This will never be triggered by this code */
/* The remaining error codes are internal to curl */
TFTP_ERR_NONE = -100,
TFTP_ERR_TIMEOUT,
TFTP_ERR_NORESPONSE
} tftp_error_t;
struct tftp_packet {
unsigned char *data;
};
struct tftp_state_data {
tftp_state_t state;
tftp_mode_t mode;
tftp_error_t error;
tftp_event_t event;
struct Curl_easy *data;
curl_socket_t sockfd;
int retries;
int retry_time;
int retry_max;
time_t rx_time;
struct Curl_sockaddr_storage local_addr;
struct Curl_sockaddr_storage remote_addr;
curl_socklen_t remote_addrlen;
int rbytes;
int sbytes;
int blksize;
int requested_blksize;
unsigned short block;
struct tftp_packet rpacket;
struct tftp_packet spacket;
};
/* Forward declarations */
static CURLcode tftp_rx(struct tftp_state_data *state, tftp_event_t event);
static CURLcode tftp_tx(struct tftp_state_data *state, tftp_event_t event);
static CURLcode tftp_connect(struct Curl_easy *data, bool *done);
static CURLcode tftp_disconnect(struct Curl_easy *data,
struct connectdata *conn,
bool dead_connection);
static CURLcode tftp_do(struct Curl_easy *data, bool *done);
static CURLcode tftp_done(struct Curl_easy *data,
CURLcode, bool premature);
static CURLcode tftp_setup_connection(struct Curl_easy *data,
struct connectdata *conn);
static CURLcode tftp_multi_statemach(struct Curl_easy *data, bool *done);
static CURLcode tftp_doing(struct Curl_easy *data, bool *dophase_done);
static int tftp_getsock(struct Curl_easy *data, struct connectdata *conn,
curl_socket_t *socks);
static CURLcode tftp_translate_code(tftp_error_t error);
/*
* TFTP protocol handler.
*/
const struct Curl_handler Curl_handler_tftp = {
"TFTP", /* scheme */
tftp_setup_connection, /* setup_connection */
tftp_do, /* do_it */
tftp_done, /* done */
ZERO_NULL, /* do_more */
tftp_connect, /* connect_it */
tftp_multi_statemach, /* connecting */
tftp_doing, /* doing */
tftp_getsock, /* proto_getsock */
tftp_getsock, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
tftp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
ZERO_NULL, /* attach connection */
PORT_TFTP, /* defport */
CURLPROTO_TFTP, /* protocol */
CURLPROTO_TFTP, /* family */
PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */
};
/**********************************************************
*
* tftp_set_timeouts -
*
* Set timeouts based on state machine state.
* Use user provided connect timeouts until DATA or ACK
* packet is received, then use user-provided transfer timeouts
*
*
**********************************************************/
static CURLcode tftp_set_timeouts(struct tftp_state_data *state)
{
time_t maxtime, timeout;
timediff_t timeout_ms;
bool start = (state->state == TFTP_STATE_START) ? TRUE : FALSE;
/* Compute drop-dead time */
timeout_ms = Curl_timeleft(state->data, NULL, start);
if(timeout_ms < 0) {
/* time-out, bail out, go home */
failf(state->data, "Connection time-out");
return CURLE_OPERATION_TIMEDOUT;
}
if(timeout_ms > 0)
maxtime = (time_t)(timeout_ms + 500) / 1000;
else
maxtime = 3600; /* use for calculating block timeouts */
/* Set per-block timeout to total */
timeout = maxtime;
/* Average reposting an ACK after 5 seconds */
state->retry_max = (int)timeout/5;
/* But bound the total number */
if(state->retry_max<3)
state->retry_max = 3;
if(state->retry_max>50)
state->retry_max = 50;
/* Compute the re-ACK interval to suit the timeout */
state->retry_time = (int)(timeout/state->retry_max);
if(state->retry_time<1)
state->retry_time = 1;
infof(state->data,
"set timeouts for state %d; Total % " CURL_FORMAT_CURL_OFF_T
", retry %d maxtry %d",
(int)state->state, timeout_ms, state->retry_time, state->retry_max);
/* init RX time */
time(&state->rx_time);
return CURLE_OK;
}
/**********************************************************
*
* tftp_set_send_first
*
* Event handler for the START state
*
**********************************************************/
static void setpacketevent(struct tftp_packet *packet, unsigned short num)
{
packet->data[0] = (unsigned char)(num >> 8);
packet->data[1] = (unsigned char)(num & 0xff);
}
static void setpacketblock(struct tftp_packet *packet, unsigned short num)
{
packet->data[2] = (unsigned char)(num >> 8);
packet->data[3] = (unsigned char)(num & 0xff);
}
static unsigned short getrpacketevent(const struct tftp_packet *packet)
{
return (unsigned short)((packet->data[0] << 8) | packet->data[1]);
}
static unsigned short getrpacketblock(const struct tftp_packet *packet)
{
return (unsigned short)((packet->data[2] << 8) | packet->data[3]);
}
static size_t tftp_strnlen(const char *string, size_t maxlen)
{
const char *end = memchr(string, '\0', maxlen);
return end ? (size_t) (end - string) : maxlen;
}
static const char *tftp_option_get(const char *buf, size_t len,
const char **option, const char **value)
{
size_t loc;
loc = tftp_strnlen(buf, len);
loc++; /* NULL term */
if(loc >= len)
return NULL;
*option = buf;
loc += tftp_strnlen(buf + loc, len-loc);
loc++; /* NULL term */
if(loc > len)
return NULL;
*value = &buf[strlen(*option) + 1];
return &buf[loc];
}
static CURLcode tftp_parse_option_ack(struct tftp_state_data *state,
const char *ptr, int len)
{
const char *tmp = ptr;
struct Curl_easy *data = state->data;
/* if OACK doesn't contain blksize option, the default (512) must be used */
state->blksize = TFTP_BLKSIZE_DEFAULT;
while(tmp < ptr + len) {
const char *option, *value;
tmp = tftp_option_get(tmp, ptr + len - tmp, &option, &value);
if(!tmp) {
failf(data, "Malformed ACK packet, rejecting");
return CURLE_TFTP_ILLEGAL;
}
infof(data, "got option=(%s) value=(%s)", option, value);
if(checkprefix(option, TFTP_OPTION_BLKSIZE)) {
long blksize;
blksize = strtol(value, NULL, 10);
if(!blksize) {
failf(data, "invalid blocksize value in OACK packet");
return CURLE_TFTP_ILLEGAL;
}
if(blksize > TFTP_BLKSIZE_MAX) {
failf(data, "%s (%d)", "blksize is larger than max supported",
TFTP_BLKSIZE_MAX);
return CURLE_TFTP_ILLEGAL;
}
else if(blksize < TFTP_BLKSIZE_MIN) {
failf(data, "%s (%d)", "blksize is smaller than min supported",
TFTP_BLKSIZE_MIN);
return CURLE_TFTP_ILLEGAL;
}
else if(blksize > state->requested_blksize) {
/* could realloc pkt buffers here, but the spec doesn't call out
* support for the server requesting a bigger blksize than the client
* requests */
failf(data, "%s (%ld)",
"server requested blksize larger than allocated", blksize);
return CURLE_TFTP_ILLEGAL;
}
state->blksize = (int)blksize;
infof(data, "%s (%d) %s (%d)", "blksize parsed from OACK",
state->blksize, "requested", state->requested_blksize);
}
else if(checkprefix(option, TFTP_OPTION_TSIZE)) {
long tsize = 0;
tsize = strtol(value, NULL, 10);
infof(data, "%s (%ld)", "tsize parsed from OACK", tsize);
/* tsize should be ignored on upload: Who cares about the size of the
remote file? */
if(!data->set.upload) {
if(!tsize) {
failf(data, "invalid tsize -:%s:- value in OACK packet", value);
return CURLE_TFTP_ILLEGAL;
}
Curl_pgrsSetDownloadSize(data, tsize);
}
}
}
return CURLE_OK;
}
static CURLcode tftp_option_add(struct tftp_state_data *state, size_t *csize,
char *buf, const char *option)
{
if(( strlen(option) + *csize + 1) > (size_t)state->blksize)
return CURLE_TFTP_ILLEGAL;
strcpy(buf, option);
*csize += strlen(option) + 1;
return CURLE_OK;
}
static CURLcode tftp_connect_for_tx(struct tftp_state_data *state,
tftp_event_t event)
{
CURLcode result;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
struct Curl_easy *data = state->data;
infof(data, "%s", "Connected for transmit");
#endif
state->state = TFTP_STATE_TX;
result = tftp_set_timeouts(state);
if(result)
return result;
return tftp_tx(state, event);
}
static CURLcode tftp_connect_for_rx(struct tftp_state_data *state,
tftp_event_t event)
{
CURLcode result;
#ifndef CURL_DISABLE_VERBOSE_STRINGS
struct Curl_easy *data = state->data;
infof(data, "%s", "Connected for receive");
#endif
state->state = TFTP_STATE_RX;
result = tftp_set_timeouts(state);
if(result)
return result;
return tftp_rx(state, event);
}
static CURLcode tftp_send_first(struct tftp_state_data *state,
tftp_event_t event)
{
size_t sbytes;
ssize_t senddata;
const char *mode = "octet";
char *filename;
struct Curl_easy *data = state->data;
CURLcode result = CURLE_OK;
/* Set ascii mode if -B flag was used */
if(data->state.prefer_ascii)
mode = "netascii";
switch(event) {
case TFTP_EVENT_INIT: /* Send the first packet out */
case TFTP_EVENT_TIMEOUT: /* Resend the first packet out */
/* Increment the retry counter, quit if over the limit */
state->retries++;
if(state->retries>state->retry_max) {
state->error = TFTP_ERR_NORESPONSE;
state->state = TFTP_STATE_FIN;
return result;
}
if(data->set.upload) {
/* If we are uploading, send an WRQ */
setpacketevent(&state->spacket, TFTP_EVENT_WRQ);
state->data->req.upload_fromhere =
(char *)state->spacket.data + 4;
if(data->state.infilesize != -1)
Curl_pgrsSetUploadSize(data, data->state.infilesize);
}
else {
/* If we are downloading, send an RRQ */
setpacketevent(&state->spacket, TFTP_EVENT_RRQ);
}
/* As RFC3617 describes the separator slash is not actually part of the
file name so we skip the always-present first letter of the path
string. */
result = Curl_urldecode(data, &state->data->state.up.path[1], 0,
&filename, NULL, REJECT_ZERO);
if(result)
return result;
if(strlen(filename) > (state->blksize - strlen(mode) - 4)) {
failf(data, "TFTP file name too long");
free(filename);
return CURLE_TFTP_ILLEGAL; /* too long file name field */
}
msnprintf((char *)state->spacket.data + 2,
state->blksize,
"%s%c%s%c", filename, '\0', mode, '\0');
sbytes = 4 + strlen(filename) + strlen(mode);
/* optional addition of TFTP options */
if(!data->set.tftp_no_options) {
char buf[64];
/* add tsize option */
if(data->set.upload && (data->state.infilesize != -1))
msnprintf(buf, sizeof(buf), "%" CURL_FORMAT_CURL_OFF_T,
data->state.infilesize);
else
strcpy(buf, "0"); /* the destination is large enough */
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes,
TFTP_OPTION_TSIZE);
if(result == CURLE_OK)
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes, buf);
/* add blksize option */
msnprintf(buf, sizeof(buf), "%d", state->requested_blksize);
if(result == CURLE_OK)
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes,
TFTP_OPTION_BLKSIZE);
if(result == CURLE_OK)
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes, buf);
/* add timeout option */
msnprintf(buf, sizeof(buf), "%d", state->retry_time);
if(result == CURLE_OK)
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes,
TFTP_OPTION_INTERVAL);
if(result == CURLE_OK)
result = tftp_option_add(state, &sbytes,
(char *)state->spacket.data + sbytes, buf);
if(result != CURLE_OK) {
failf(data, "TFTP buffer too small for options");
free(filename);
return CURLE_TFTP_ILLEGAL;
}
}
/* the typecase for the 3rd argument is mostly for systems that do
not have a size_t argument, like older unixes that want an 'int' */
senddata = sendto(state->sockfd, (void *)state->spacket.data,
(SEND_TYPE_ARG3)sbytes, 0,
data->conn->ip_addr->ai_addr,
data->conn->ip_addr->ai_addrlen);
if(senddata != (ssize_t)sbytes) {
char buffer[STRERROR_LEN];
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
}
free(filename);
break;
case TFTP_EVENT_OACK:
if(data->set.upload) {
result = tftp_connect_for_tx(state, event);
}
else {
result = tftp_connect_for_rx(state, event);
}
break;
case TFTP_EVENT_ACK: /* Connected for transmit */
result = tftp_connect_for_tx(state, event);
break;
case TFTP_EVENT_DATA: /* Connected for receive */
result = tftp_connect_for_rx(state, event);
break;
case TFTP_EVENT_ERROR:
state->state = TFTP_STATE_FIN;
break;
default:
failf(state->data, "tftp_send_first: internal error");
break;
}
return result;
}
/* the next blocknum is x + 1 but it needs to wrap at an unsigned 16bit
boundary */
#define NEXT_BLOCKNUM(x) (((x) + 1)&0xffff)
/**********************************************************
*
* tftp_rx
*
* Event handler for the RX state
*
**********************************************************/
static CURLcode tftp_rx(struct tftp_state_data *state,
tftp_event_t event)
{
ssize_t sbytes;
int rblock;
struct Curl_easy *data = state->data;
char buffer[STRERROR_LEN];
switch(event) {
case TFTP_EVENT_DATA:
/* Is this the block we expect? */
rblock = getrpacketblock(&state->rpacket);
if(NEXT_BLOCKNUM(state->block) == rblock) {
/* This is the expected block. Reset counters and ACK it. */
state->retries = 0;
}
else if(state->block == rblock) {
/* This is the last recently received block again. Log it and ACK it
again. */
infof(data, "Received last DATA packet block %d again.", rblock);
}
else {
/* totally unexpected, just log it */
infof(data,
"Received unexpected DATA packet block %d, expecting block %d",
rblock, NEXT_BLOCKNUM(state->block));
break;
}
/* ACK this block. */
state->block = (unsigned short)rblock;
setpacketevent(&state->spacket, TFTP_EVENT_ACK);
setpacketblock(&state->spacket, state->block);
sbytes = sendto(state->sockfd, (void *)state->spacket.data,
4, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
if(sbytes < 0) {
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_SEND_ERROR;
}
/* Check if completed (That is, a less than full packet is received) */
if(state->rbytes < (ssize_t)state->blksize + 4) {
state->state = TFTP_STATE_FIN;
}
else {
state->state = TFTP_STATE_RX;
}
time(&state->rx_time);
break;
case TFTP_EVENT_OACK:
/* ACK option acknowledgement so we can move on to data */
state->block = 0;
state->retries = 0;
setpacketevent(&state->spacket, TFTP_EVENT_ACK);
setpacketblock(&state->spacket, state->block);
sbytes = sendto(state->sockfd, (void *)state->spacket.data,
4, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
if(sbytes < 0) {
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_SEND_ERROR;
}
/* we're ready to RX data */
state->state = TFTP_STATE_RX;
time(&state->rx_time);
break;
case TFTP_EVENT_TIMEOUT:
/* Increment the retry count and fail if over the limit */
state->retries++;
infof(data,
"Timeout waiting for block %d ACK. Retries = %d",
NEXT_BLOCKNUM(state->block), state->retries);
if(state->retries > state->retry_max) {
state->error = TFTP_ERR_TIMEOUT;
state->state = TFTP_STATE_FIN;
}
else {
/* Resend the previous ACK */
sbytes = sendto(state->sockfd, (void *)state->spacket.data,
4, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
if(sbytes<0) {
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_SEND_ERROR;
}
}
break;
case TFTP_EVENT_ERROR:
setpacketevent(&state->spacket, TFTP_EVENT_ERROR);
setpacketblock(&state->spacket, state->block);
(void)sendto(state->sockfd, (void *)state->spacket.data,
4, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
/* don't bother with the return code, but if the socket is still up we
* should be a good TFTP client and let the server know we're done */
state->state = TFTP_STATE_FIN;
break;
default:
failf(data, "%s", "tftp_rx: internal error");
return CURLE_TFTP_ILLEGAL; /* not really the perfect return code for
this */
}
return CURLE_OK;
}
/**********************************************************
*
* tftp_tx
*
* Event handler for the TX state
*
**********************************************************/
static CURLcode tftp_tx(struct tftp_state_data *state, tftp_event_t event)
{
struct Curl_easy *data = state->data;
ssize_t sbytes;
CURLcode result = CURLE_OK;
struct SingleRequest *k = &data->req;
size_t cb; /* Bytes currently read */
char buffer[STRERROR_LEN];
switch(event) {
case TFTP_EVENT_ACK:
case TFTP_EVENT_OACK:
if(event == TFTP_EVENT_ACK) {
/* Ack the packet */
int rblock = getrpacketblock(&state->rpacket);
if(rblock != state->block &&
/* There's a bug in tftpd-hpa that causes it to send us an ack for
* 65535 when the block number wraps to 0. So when we're expecting
* 0, also accept 65535. See
* https://www.syslinux.org/archives/2010-September/015612.html
* */
!(state->block == 0 && rblock == 65535)) {
/* This isn't the expected block. Log it and up the retry counter */
infof(data, "Received ACK for block %d, expecting %d",
rblock, state->block);
state->retries++;
/* Bail out if over the maximum */
if(state->retries>state->retry_max) {
failf(data, "tftp_tx: giving up waiting for block %d ack",
state->block);
result = CURLE_SEND_ERROR;
}
else {
/* Re-send the data packet */
sbytes = sendto(state->sockfd, (void *)state->spacket.data,
4 + state->sbytes, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
/* Check all sbytes were sent */
if(sbytes<0) {
failf(data, "%s", Curl_strerror(SOCKERRNO,
buffer, sizeof(buffer)));
result = CURLE_SEND_ERROR;
}
}
return result;
}
/* This is the expected packet. Reset the counters and send the next
block */
time(&state->rx_time);
state->block++;
}
else
state->block = 1; /* first data block is 1 when using OACK */
state->retries = 0;
setpacketevent(&state->spacket, TFTP_EVENT_DATA);
setpacketblock(&state->spacket, state->block);
if(state->block > 1 && state->sbytes < state->blksize) {
state->state = TFTP_STATE_FIN;
return CURLE_OK;
}
/* TFTP considers data block size < 512 bytes as an end of session. So
* in some cases we must wait for additional data to build full (512 bytes)
* data block.
* */
state->sbytes = 0;
state->data->req.upload_fromhere = (char *)state->spacket.data + 4;
do {
result = Curl_fillreadbuffer(data, state->blksize - state->sbytes, &cb);
if(result)
return result;
state->sbytes += (int)cb;
state->data->req.upload_fromhere += cb;
} while(state->sbytes < state->blksize && cb);
sbytes = sendto(state->sockfd, (void *) state->spacket.data,
4 + state->sbytes, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
/* Check all sbytes were sent */
if(sbytes<0) {
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_SEND_ERROR;
}
/* Update the progress meter */
k->writebytecount += state->sbytes;
Curl_pgrsSetUploadCounter(data, k->writebytecount);
break;
case TFTP_EVENT_TIMEOUT:
/* Increment the retry counter and log the timeout */
state->retries++;
infof(data, "Timeout waiting for block %d ACK. "
" Retries = %d", NEXT_BLOCKNUM(state->block), state->retries);
/* Decide if we've had enough */
if(state->retries > state->retry_max) {
state->error = TFTP_ERR_TIMEOUT;
state->state = TFTP_STATE_FIN;
}
else {
/* Re-send the data packet */
sbytes = sendto(state->sockfd, (void *)state->spacket.data,
4 + state->sbytes, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
/* Check all sbytes were sent */
if(sbytes<0) {
failf(data, "%s", Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_SEND_ERROR;
}
/* since this was a re-send, we remain at the still byte position */
Curl_pgrsSetUploadCounter(data, k->writebytecount);
}
break;
case TFTP_EVENT_ERROR:
state->state = TFTP_STATE_FIN;
setpacketevent(&state->spacket, TFTP_EVENT_ERROR);
setpacketblock(&state->spacket, state->block);
(void)sendto(state->sockfd, (void *)state->spacket.data, 4, SEND_4TH_ARG,
(struct sockaddr *)&state->remote_addr,
state->remote_addrlen);
/* don't bother with the return code, but if the socket is still up we
* should be a good TFTP client and let the server know we're done */
state->state = TFTP_STATE_FIN;
break;
default:
failf(data, "tftp_tx: internal error, event: %i", (int)(event));
break;
}
return result;
}
/**********************************************************
*
* tftp_translate_code
*
* Translate internal error codes to CURL error codes
*
**********************************************************/
static CURLcode tftp_translate_code(tftp_error_t error)
{
CURLcode result = CURLE_OK;
if(error != TFTP_ERR_NONE) {
switch(error) {
case TFTP_ERR_NOTFOUND:
result = CURLE_TFTP_NOTFOUND;
break;
case TFTP_ERR_PERM:
result = CURLE_TFTP_PERM;
break;
case TFTP_ERR_DISKFULL:
result = CURLE_REMOTE_DISK_FULL;
break;
case TFTP_ERR_UNDEF:
case TFTP_ERR_ILLEGAL:
result = CURLE_TFTP_ILLEGAL;
break;
case TFTP_ERR_UNKNOWNID:
result = CURLE_TFTP_UNKNOWNID;
break;
case TFTP_ERR_EXISTS:
result = CURLE_REMOTE_FILE_EXISTS;
break;
case TFTP_ERR_NOSUCHUSER:
result = CURLE_TFTP_NOSUCHUSER;
break;
case TFTP_ERR_TIMEOUT:
result = CURLE_OPERATION_TIMEDOUT;
break;
case TFTP_ERR_NORESPONSE:
result = CURLE_COULDNT_CONNECT;
break;
default:
result = CURLE_ABORTED_BY_CALLBACK;
break;
}
}
else
result = CURLE_OK;
return result;
}
/**********************************************************
*
* tftp_state_machine
*
* The tftp state machine event dispatcher
*
**********************************************************/
static CURLcode tftp_state_machine(struct tftp_state_data *state,
tftp_event_t event)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = state->data;
switch(state->state) {
case TFTP_STATE_START:
DEBUGF(infof(data, "TFTP_STATE_START"));
result = tftp_send_first(state, event);
break;
case TFTP_STATE_RX:
DEBUGF(infof(data, "TFTP_STATE_RX"));
result = tftp_rx(state, event);
break;
case TFTP_STATE_TX:
DEBUGF(infof(data, "TFTP_STATE_TX"));
result = tftp_tx(state, event);
break;
case TFTP_STATE_FIN:
infof(data, "%s", "TFTP finished");
break;
default:
DEBUGF(infof(data, "STATE: %d", state->state));
failf(data, "%s", "Internal state machine error");
result = CURLE_TFTP_ILLEGAL;
break;
}
return result;
}
/**********************************************************
*
* tftp_disconnect
*
* The disconnect callback
*
**********************************************************/
static CURLcode tftp_disconnect(struct Curl_easy *data,
struct connectdata *conn, bool dead_connection)
{
struct tftp_state_data *state = conn->proto.tftpc;
(void) data;
(void) dead_connection;
/* done, free dynamically allocated pkt buffers */
if(state) {
Curl_safefree(state->rpacket.data);
Curl_safefree(state->spacket.data);
free(state);
}
return CURLE_OK;
}
/**********************************************************
*
* tftp_connect
*
* The connect callback
*
**********************************************************/
static CURLcode tftp_connect(struct Curl_easy *data, bool *done)
{
struct tftp_state_data *state;
int blksize;
int need_blksize;
struct connectdata *conn = data->conn;
blksize = TFTP_BLKSIZE_DEFAULT;
state = conn->proto.tftpc = calloc(1, sizeof(struct tftp_state_data));
if(!state)
return CURLE_OUT_OF_MEMORY;
/* alloc pkt buffers based on specified blksize */
if(data->set.tftp_blksize) {
blksize = (int)data->set.tftp_blksize;
if(blksize > TFTP_BLKSIZE_MAX || blksize < TFTP_BLKSIZE_MIN)
return CURLE_TFTP_ILLEGAL;
}
need_blksize = blksize;
/* default size is the fallback when no OACK is received */
if(need_blksize < TFTP_BLKSIZE_DEFAULT)
need_blksize = TFTP_BLKSIZE_DEFAULT;
if(!state->rpacket.data) {
state->rpacket.data = calloc(1, need_blksize + 2 + 2);
if(!state->rpacket.data)
return CURLE_OUT_OF_MEMORY;
}
if(!state->spacket.data) {
state->spacket.data = calloc(1, need_blksize + 2 + 2);
if(!state->spacket.data)
return CURLE_OUT_OF_MEMORY;
}
/* we don't keep TFTP connections up basically because there's none or very
* little gain for UDP */
connclose(conn, "TFTP");
state->data = data;
state->sockfd = conn->sock[FIRSTSOCKET];
state->state = TFTP_STATE_START;
state->error = TFTP_ERR_NONE;
state->blksize = TFTP_BLKSIZE_DEFAULT; /* Unless updated by OACK response */
state->requested_blksize = blksize;
((struct sockaddr *)&state->local_addr)->sa_family =
(CURL_SA_FAMILY_T)(conn->ip_addr->ai_family);
tftp_set_timeouts(state);
if(!conn->bits.bound) {
/* If not already bound, bind to any interface, random UDP port. If it is
* reused or a custom local port was desired, this has already been done!
*
* We once used the size of the local_addr struct as the third argument
* for bind() to better work with IPv6 or whatever size the struct could
* have, but we learned that at least Tru64, AIX and IRIX *requires* the
* size of that argument to match the exact size of a 'sockaddr_in' struct
* when running IPv4-only.
*
* Therefore we use the size from the address we connected to, which we
* assume uses the same IP version and thus hopefully this works for both
* IPv4 and IPv6...
*/
int rc = bind(state->sockfd, (struct sockaddr *)&state->local_addr,
conn->ip_addr->ai_addrlen);
if(rc) {
char buffer[STRERROR_LEN];
failf(data, "bind() failed; %s",
Curl_strerror(SOCKERRNO, buffer, sizeof(buffer)));
return CURLE_COULDNT_CONNECT;
}
conn->bits.bound = TRUE;
}
Curl_pgrsStartNow(data);
*done = TRUE;
return CURLE_OK;
}
/**********************************************************
*
* tftp_done
*
* The done callback
*
**********************************************************/
static CURLcode tftp_done(struct Curl_easy *data, CURLcode status,
bool premature)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct tftp_state_data *state = conn->proto.tftpc;
(void)status; /* unused */
(void)premature; /* not used */
if(Curl_pgrsDone(data))
return CURLE_ABORTED_BY_CALLBACK;
/* If we have encountered an error */
if(state)
result = tftp_translate_code(state->error);
return result;
}
/**********************************************************
*
* tftp_getsock
*
* The getsock callback
*
**********************************************************/
static int tftp_getsock(struct Curl_easy *data,
struct connectdata *conn, curl_socket_t *socks)
{
(void)data;
socks[0] = conn->sock[FIRSTSOCKET];
return GETSOCK_READSOCK(0);
}
/**********************************************************
*
* tftp_receive_packet
*
* Called once select fires and data is ready on the socket
*
**********************************************************/
static CURLcode tftp_receive_packet(struct Curl_easy *data)
{
struct Curl_sockaddr_storage fromaddr;
curl_socklen_t fromlen;
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct tftp_state_data *state = conn->proto.tftpc;
struct SingleRequest *k = &data->req;
/* Receive the packet */
fromlen = sizeof(fromaddr);
state->rbytes = (int)recvfrom(state->sockfd,
(void *)state->rpacket.data,
state->blksize + 4,
0,
(struct sockaddr *)&fromaddr,
&fromlen);
if(state->remote_addrlen == 0) {
memcpy(&state->remote_addr, &fromaddr, fromlen);
state->remote_addrlen = fromlen;
}
/* Sanity check packet length */
if(state->rbytes < 4) {
failf(data, "Received too short packet");
/* Not a timeout, but how best to handle it? */
state->event = TFTP_EVENT_TIMEOUT;
}
else {
/* The event is given by the TFTP packet time */
unsigned short event = getrpacketevent(&state->rpacket);
state->event = (tftp_event_t)event;
switch(state->event) {
case TFTP_EVENT_DATA:
/* Don't pass to the client empty or retransmitted packets */
if(state->rbytes > 4 &&
(NEXT_BLOCKNUM(state->block) == getrpacketblock(&state->rpacket))) {
result = Curl_client_write(data, CLIENTWRITE_BODY,
(char *)state->rpacket.data + 4,
state->rbytes-4);
if(result) {
tftp_state_machine(state, TFTP_EVENT_ERROR);
return result;
}
k->bytecount += state->rbytes-4;
Curl_pgrsSetDownloadCounter(data, (curl_off_t) k->bytecount);
}
break;
case TFTP_EVENT_ERROR:
{
unsigned short error = getrpacketblock(&state->rpacket);
char *str = (char *)state->rpacket.data + 4;
size_t strn = state->rbytes - 4;
state->error = (tftp_error_t)error;
if(tftp_strnlen(str, strn) < strn)
infof(data, "TFTP error: %s", str);
break;
}
case TFTP_EVENT_ACK:
break;
case TFTP_EVENT_OACK:
result = tftp_parse_option_ack(state,
(const char *)state->rpacket.data + 2,
state->rbytes-2);
if(result)
return result;
break;
case TFTP_EVENT_RRQ:
case TFTP_EVENT_WRQ:
default:
failf(data, "%s", "Internal error: Unexpected packet");
break;
}
/* Update the progress meter */
if(Curl_pgrsUpdate(data)) {
tftp_state_machine(state, TFTP_EVENT_ERROR);
return CURLE_ABORTED_BY_CALLBACK;
}
}
return result;
}
/**********************************************************
*
* tftp_state_timeout
*
* Check if timeouts have been reached
*
**********************************************************/
static timediff_t tftp_state_timeout(struct Curl_easy *data,
tftp_event_t *event)
{
time_t current;
struct connectdata *conn = data->conn;
struct tftp_state_data *state = conn->proto.tftpc;
timediff_t timeout_ms;
if(event)
*event = TFTP_EVENT_NONE;
timeout_ms = Curl_timeleft(state->data, NULL,
(state->state == TFTP_STATE_START));
if(timeout_ms < 0) {
state->error = TFTP_ERR_TIMEOUT;
state->state = TFTP_STATE_FIN;
return 0;
}
time(¤t);
if(current > state->rx_time + state->retry_time) {
if(event)
*event = TFTP_EVENT_TIMEOUT;
time(&state->rx_time); /* update even though we received nothing */
}
return timeout_ms;
}
/**********************************************************
*
* tftp_multi_statemach
*
* Handle single RX socket event and return
*
**********************************************************/
static CURLcode tftp_multi_statemach(struct Curl_easy *data, bool *done)
{
tftp_event_t event;
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct tftp_state_data *state = conn->proto.tftpc;
timediff_t timeout_ms = tftp_state_timeout(data, &event);
*done = FALSE;
if(timeout_ms < 0) {
failf(data, "TFTP response timeout");
return CURLE_OPERATION_TIMEDOUT;
}
if(event != TFTP_EVENT_NONE) {
result = tftp_state_machine(state, event);
if(result)
return result;
*done = (state->state == TFTP_STATE_FIN) ? TRUE : FALSE;
if(*done)
/* Tell curl we're done */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
}
else {
/* no timeouts to handle, check our socket */
int rc = SOCKET_READABLE(state->sockfd, 0);
if(rc == -1) {
/* bail out */
int error = SOCKERRNO;
char buffer[STRERROR_LEN];
failf(data, "%s", Curl_strerror(error, buffer, sizeof(buffer)));
state->event = TFTP_EVENT_ERROR;
}
else if(rc) {
result = tftp_receive_packet(data);
if(result)
return result;
result = tftp_state_machine(state, state->event);
if(result)
return result;
*done = (state->state == TFTP_STATE_FIN) ? TRUE : FALSE;
if(*done)
/* Tell curl we're done */
Curl_setup_transfer(data, -1, -1, FALSE, -1);
}
/* if rc == 0, then select() timed out */
}
return result;
}
/**********************************************************
*
* tftp_doing
*
* Called from multi.c while DOing
*
**********************************************************/
static CURLcode tftp_doing(struct Curl_easy *data, bool *dophase_done)
{
CURLcode result;
result = tftp_multi_statemach(data, dophase_done);
if(*dophase_done) {
DEBUGF(infof(data, "DO phase is complete"));
}
else if(!result) {
/* The multi code doesn't have this logic for the DOING state so we
provide it for TFTP since it may do the entire transfer in this
state. */
if(Curl_pgrsUpdate(data))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
}
return result;
}
/**********************************************************
*
* tftp_perform
*
* Entry point for transfer from tftp_do, starts state mach
*
**********************************************************/
static CURLcode tftp_perform(struct Curl_easy *data, bool *dophase_done)
{
CURLcode result = CURLE_OK;
struct connectdata *conn = data->conn;
struct tftp_state_data *state = conn->proto.tftpc;
*dophase_done = FALSE;
result = tftp_state_machine(state, TFTP_EVENT_INIT);
if((state->state == TFTP_STATE_FIN) || result)
return result;
tftp_multi_statemach(data, dophase_done);
if(*dophase_done)
DEBUGF(infof(data, "DO phase is complete"));
return result;
}
/**********************************************************
*
* tftp_do
*
* The do callback
*
* This callback initiates the TFTP transfer
*
**********************************************************/
static CURLcode tftp_do(struct Curl_easy *data, bool *done)
{
struct tftp_state_data *state;
CURLcode result;
struct connectdata *conn = data->conn;
*done = FALSE;
if(!conn->proto.tftpc) {
result = tftp_connect(data, done);
if(result)
return result;
}
state = conn->proto.tftpc;
if(!state)
return CURLE_TFTP_ILLEGAL;
result = tftp_perform(data, done);
/* If tftp_perform() returned an error, use that for return code. If it
was OK, see if tftp_translate_code() has an error. */
if(!result)
/* If we have encountered an internal tftp error, translate it. */
result = tftp_translate_code(state->error);
return result;
}
static CURLcode tftp_setup_connection(struct Curl_easy *data,
struct connectdata *conn)
{
char *type;
conn->transport = TRNSPRT_UDP;
/* TFTP URLs support an extension like ";mode=<typecode>" that
* we'll try to get now! */
type = strstr(data->state.up.path, ";mode=");
if(!type)
type = strstr(conn->host.rawalloc, ";mode=");
if(type) {
char command;
*type = 0; /* it was in the middle of the hostname */
command = Curl_raw_toupper(type[6]);
switch(command) {
case 'A': /* ASCII mode */
case 'N': /* NETASCII mode */
data->state.prefer_ascii = TRUE;
break;
case 'O': /* octet mode */
case 'I': /* binary mode */
default:
/* switch off ASCII */
data->state.prefer_ascii = FALSE;
break;
}
}
return CURLE_OK;
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_range.h | #ifndef HEADER_CURL_RANGE_H
#define HEADER_CURL_RANGE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
CURLcode Curl_range(struct Curl_easy *data);
#endif /* HEADER_CURL_RANGE_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/strerror.h | #ifndef HEADER_CURL_STRERROR_H
#define HEADER_CURL_STRERROR_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "urldata.h"
#define STRERROR_LEN 256 /* a suitable length */
const char *Curl_strerror(int err, char *buf, size_t buflen);
#if defined(WIN32) || defined(_WIN32_WCE)
const char *Curl_winapi_strerror(DWORD err, char *buf, size_t buflen);
#endif
#ifdef USE_WINDOWS_SSPI
const char *Curl_sspi_strerror(int err, char *buf, size_t buflen);
#endif
#endif /* HEADER_CURL_STRERROR_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/strcase.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "strcase.h"
static char raw_tolower(char in);
/* Portable, consistent toupper (remember EBCDIC). Do not use toupper() because
its behavior is altered by the current locale. */
char Curl_raw_toupper(char in)
{
#if !defined(CURL_DOES_CONVERSIONS)
if(in >= 'a' && in <= 'z')
return (char)('A' + in - 'a');
#else
switch(in) {
case 'a':
return 'A';
case 'b':
return 'B';
case 'c':
return 'C';
case 'd':
return 'D';
case 'e':
return 'E';
case 'f':
return 'F';
case 'g':
return 'G';
case 'h':
return 'H';
case 'i':
return 'I';
case 'j':
return 'J';
case 'k':
return 'K';
case 'l':
return 'L';
case 'm':
return 'M';
case 'n':
return 'N';
case 'o':
return 'O';
case 'p':
return 'P';
case 'q':
return 'Q';
case 'r':
return 'R';
case 's':
return 'S';
case 't':
return 'T';
case 'u':
return 'U';
case 'v':
return 'V';
case 'w':
return 'W';
case 'x':
return 'X';
case 'y':
return 'Y';
case 'z':
return 'Z';
}
#endif
return in;
}
/* Portable, consistent tolower (remember EBCDIC). Do not use tolower() because
its behavior is altered by the current locale. */
static char raw_tolower(char in)
{
#if !defined(CURL_DOES_CONVERSIONS)
if(in >= 'A' && in <= 'Z')
return (char)('a' + in - 'A');
#else
switch(in) {
case 'A':
return 'a';
case 'B':
return 'b';
case 'C':
return 'c';
case 'D':
return 'd';
case 'E':
return 'e';
case 'F':
return 'f';
case 'G':
return 'g';
case 'H':
return 'h';
case 'I':
return 'i';
case 'J':
return 'j';
case 'K':
return 'k';
case 'L':
return 'l';
case 'M':
return 'm';
case 'N':
return 'n';
case 'O':
return 'o';
case 'P':
return 'p';
case 'Q':
return 'q';
case 'R':
return 'r';
case 'S':
return 's';
case 'T':
return 't';
case 'U':
return 'u';
case 'V':
return 'v';
case 'W':
return 'w';
case 'X':
return 'x';
case 'Y':
return 'y';
case 'Z':
return 'z';
}
#endif
return in;
}
/*
* Curl_strcasecompare() is for doing "raw" case insensitive strings. This is
* meant to be locale independent and only compare strings we know are safe
* for this. See
* https://daniel.haxx.se/blog/2008/10/15/strcasecmp-in-turkish/ for some
* further explanation to why this function is necessary.
*
* The function is capable of comparing a-z case insensitively even for
* non-ascii.
*
* @unittest: 1301
*/
int Curl_strcasecompare(const char *first, const char *second)
{
while(*first && *second) {
if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second))
/* get out of the loop as soon as they don't match */
break;
first++;
second++;
}
/* we do the comparison here (possibly again), just to make sure that if the
loop above is skipped because one of the strings reached zero, we must not
return this as a successful match */
return (Curl_raw_toupper(*first) == Curl_raw_toupper(*second));
}
int Curl_safe_strcasecompare(const char *first, const char *second)
{
if(first && second)
/* both pointers point to something then compare them */
return Curl_strcasecompare(first, second);
/* if both pointers are NULL then treat them as equal */
return (NULL == first && NULL == second);
}
/*
* @unittest: 1301
*/
int Curl_strncasecompare(const char *first, const char *second, size_t max)
{
while(*first && *second && max) {
if(Curl_raw_toupper(*first) != Curl_raw_toupper(*second)) {
break;
}
max--;
first++;
second++;
}
if(0 == max)
return 1; /* they are equal this far */
return Curl_raw_toupper(*first) == Curl_raw_toupper(*second);
}
/* Copy an upper case version of the string from src to dest. The
* strings may overlap. No more than n characters of the string are copied
* (including any NUL) and the destination string will NOT be
* NUL-terminated if that limit is reached.
*/
void Curl_strntoupper(char *dest, const char *src, size_t n)
{
if(n < 1)
return;
do {
*dest++ = Curl_raw_toupper(*src);
} while(*src++ && --n);
}
/* Copy a lower case version of the string from src to dest. The
* strings may overlap. No more than n characters of the string are copied
* (including any NUL) and the destination string will NOT be
* NUL-terminated if that limit is reached.
*/
void Curl_strntolower(char *dest, const char *src, size_t n)
{
if(n < 1)
return;
do {
*dest++ = raw_tolower(*src);
} while(*src++ && --n);
}
/* --- public functions --- */
int curl_strequal(const char *first, const char *second)
{
return Curl_strcasecompare(first, second);
}
int curl_strnequal(const char *first, const char *second, size_t max)
{
return Curl_strncasecompare(first, second, max);
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/curl_path.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_SSH)
#include <curl/curl.h>
#include "curl_memory.h"
#include "curl_path.h"
#include "escape.h"
#include "memdebug.h"
/* figure out the path to work with in this particular request */
CURLcode Curl_getworkingpath(struct Curl_easy *data,
char *homedir, /* when SFTP is used */
char **path) /* returns the allocated
real path to work with */
{
char *real_path = NULL;
char *working_path;
size_t working_path_len;
CURLcode result =
Curl_urldecode(data, data->state.up.path, 0, &working_path,
&working_path_len, REJECT_ZERO);
if(result)
return result;
/* Check for /~/, indicating relative to the user's home directory */
if(data->conn->handler->protocol & CURLPROTO_SCP) {
real_path = malloc(working_path_len + 1);
if(!real_path) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
if((working_path_len > 3) && (!memcmp(working_path, "/~/", 3)))
/* It is referenced to the home directory, so strip the leading '/~/' */
memcpy(real_path, working_path + 3, working_path_len - 2);
else
memcpy(real_path, working_path, 1 + working_path_len);
}
else if(data->conn->handler->protocol & CURLPROTO_SFTP) {
if((working_path_len > 1) && (working_path[1] == '~')) {
size_t homelen = strlen(homedir);
real_path = malloc(homelen + working_path_len + 1);
if(!real_path) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
/* It is referenced to the home directory, so strip the
leading '/' */
memcpy(real_path, homedir, homelen);
real_path[homelen] = '/';
real_path[homelen + 1] = '\0';
if(working_path_len > 3) {
memcpy(real_path + homelen + 1, working_path + 3,
1 + working_path_len -3);
}
}
else {
real_path = malloc(working_path_len + 1);
if(!real_path) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
memcpy(real_path, working_path, 1 + working_path_len);
}
}
free(working_path);
/* store the pointer for the caller to receive */
*path = real_path;
return CURLE_OK;
}
/* The get_pathname() function is being borrowed from OpenSSH sftp.c
version 4.6p1. */
/*
* Copyright (c) 2001-2004 Damien Miller <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
CURLcode Curl_get_pathname(const char **cpp, char **path, char *homedir)
{
const char *cp = *cpp, *end;
char quot;
unsigned int i, j;
size_t fullPathLength, pathLength;
bool relativePath = false;
static const char WHITESPACE[] = " \t\r\n";
if(!*cp) {
*cpp = NULL;
*path = NULL;
return CURLE_QUOTE_ERROR;
}
/* Ignore leading whitespace */
cp += strspn(cp, WHITESPACE);
/* Allocate enough space for home directory and filename + separator */
fullPathLength = strlen(cp) + strlen(homedir) + 2;
*path = malloc(fullPathLength);
if(!*path)
return CURLE_OUT_OF_MEMORY;
/* Check for quoted filenames */
if(*cp == '\"' || *cp == '\'') {
quot = *cp++;
/* Search for terminating quote, unescape some chars */
for(i = j = 0; i <= strlen(cp); i++) {
if(cp[i] == quot) { /* Found quote */
i++;
(*path)[j] = '\0';
break;
}
if(cp[i] == '\0') { /* End of string */
/*error("Unterminated quote");*/
goto fail;
}
if(cp[i] == '\\') { /* Escaped characters */
i++;
if(cp[i] != '\'' && cp[i] != '\"' &&
cp[i] != '\\') {
/*error("Bad escaped character '\\%c'",
cp[i]);*/
goto fail;
}
}
(*path)[j++] = cp[i];
}
if(j == 0) {
/*error("Empty quotes");*/
goto fail;
}
*cpp = cp + i + strspn(cp + i, WHITESPACE);
}
else {
/* Read to end of filename - either to whitespace or terminator */
end = strpbrk(cp, WHITESPACE);
if(!end)
end = strchr(cp, '\0');
/* return pointer to second parameter if it exists */
*cpp = end + strspn(end, WHITESPACE);
pathLength = 0;
relativePath = (cp[0] == '/' && cp[1] == '~' && cp[2] == '/');
/* Handling for relative path - prepend home directory */
if(relativePath) {
strcpy(*path, homedir);
pathLength = strlen(homedir);
(*path)[pathLength++] = '/';
(*path)[pathLength] = '\0';
cp += 3;
}
/* Copy path name up until first "whitespace" */
memcpy(&(*path)[pathLength], cp, (int)(end - cp));
pathLength += (int)(end - cp);
(*path)[pathLength] = '\0';
}
return CURLE_OK;
fail:
Curl_safefree(*path);
return CURLE_QUOTE_ERROR;
}
#endif /* if SSH is used */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/nonblock.h | #ifndef HEADER_CURL_NONBLOCK_H
#define HEADER_CURL_NONBLOCK_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h> /* for curl_socket_t */
int curlx_nonblock(curl_socket_t sockfd, /* operate on this */
int nonblock /* TRUE or FALSE */);
#endif /* HEADER_CURL_NONBLOCK_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/version.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "vtls/vtls.h"
#include "http2.h"
#include "vssh/ssh.h"
#include "quic.h"
#include "curl_printf.h"
#ifdef USE_ARES
# if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
defined(WIN32)
# define CARES_STATICLIB
# endif
# include <ares.h>
#endif
#ifdef USE_LIBIDN2
#include <idn2.h>
#endif
#ifdef USE_LIBPSL
#include <libpsl.h>
#endif
#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
#include <iconv.h>
#endif
#ifdef USE_LIBRTMP
#include <librtmp/rtmp.h>
#endif
#ifdef HAVE_ZLIB_H
#include <zlib.h>
#endif
#ifdef HAVE_BROTLI
#include <brotli/decode.h>
#endif
#ifdef HAVE_ZSTD
#include <zstd.h>
#endif
#ifdef USE_GSASL
#include <gsasl.h>
#endif
#ifdef USE_OPENLDAP
#include <ldap.h>
#endif
#ifdef HAVE_BROTLI
static void brotli_version(char *buf, size_t bufsz)
{
uint32_t brotli_version = BrotliDecoderVersion();
unsigned int major = brotli_version >> 24;
unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12;
unsigned int patch = brotli_version & 0x00000FFF;
(void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
}
#endif
#ifdef HAVE_ZSTD
static void zstd_version(char *buf, size_t bufsz)
{
unsigned long zstd_version = (unsigned long)ZSTD_versionNumber();
unsigned int major = (unsigned int)(zstd_version / (100 * 100));
unsigned int minor = (unsigned int)((zstd_version -
(major * 100 * 100)) / 100);
unsigned int patch = (unsigned int)(zstd_version -
(major * 100 * 100) - (minor * 100));
(void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
}
#endif
/*
* curl_version() returns a pointer to a static buffer.
*
* It is implemented to work multi-threaded by making sure repeated invokes
* generate the exact same string and never write any temporary data like
* zeros in the data.
*/
#define VERSION_PARTS 17 /* number of substrings we can concatenate */
char *curl_version(void)
{
static char out[300];
char *outp;
size_t outlen;
const char *src[VERSION_PARTS];
#ifdef USE_SSL
char ssl_version[200];
#endif
#ifdef HAVE_LIBZ
char z_version[40];
#endif
#ifdef HAVE_BROTLI
char br_version[40] = "brotli/";
#endif
#ifdef HAVE_ZSTD
char zst_version[40] = "zstd/";
#endif
#ifdef USE_ARES
char cares_version[40];
#endif
#if defined(USE_LIBIDN2)
char idn_version[40];
#endif
#ifdef USE_LIBPSL
char psl_version[40];
#endif
#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
char iconv_version[40]="iconv";
#endif
#ifdef USE_SSH
char ssh_version[40];
#endif
#ifdef USE_NGHTTP2
char h2_version[40];
#endif
#ifdef ENABLE_QUIC
char h3_version[40];
#endif
#ifdef USE_LIBRTMP
char rtmp_version[40];
#endif
#ifdef USE_HYPER
char hyper_buf[30];
#endif
#ifdef USE_GSASL
char gsasl_buf[30];
#endif
#ifdef USE_OPENLDAP
char ldap_buf[30];
#endif
int i = 0;
int j;
#ifdef DEBUGBUILD
/* Override version string when environment variable CURL_VERSION is set */
const char *debugversion = getenv("CURL_VERSION");
if(debugversion) {
strncpy(out, debugversion, sizeof(out)-1);
out[sizeof(out)-1] = '\0';
return out;
}
#endif
src[i++] = LIBCURL_NAME "/" LIBCURL_VERSION;
#ifdef USE_SSL
Curl_ssl_version(ssl_version, sizeof(ssl_version));
src[i++] = ssl_version;
#endif
#ifdef HAVE_LIBZ
msnprintf(z_version, sizeof(z_version), "zlib/%s", zlibVersion());
src[i++] = z_version;
#endif
#ifdef HAVE_BROTLI
brotli_version(&br_version[7], sizeof(br_version) - 7);
src[i++] = br_version;
#endif
#ifdef HAVE_ZSTD
zstd_version(&zst_version[5], sizeof(zst_version) - 5);
src[i++] = zst_version;
#endif
#ifdef USE_ARES
msnprintf(cares_version, sizeof(cares_version),
"c-ares/%s", ares_version(NULL));
src[i++] = cares_version;
#endif
#ifdef USE_LIBIDN2
msnprintf(idn_version, sizeof(idn_version),
"libidn2/%s", idn2_check_version(NULL));
src[i++] = idn_version;
#elif defined(USE_WIN32_IDN)
src[i++] = (char *)"WinIDN";
#endif
#ifdef USE_LIBPSL
msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version());
src[i++] = psl_version;
#endif
#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
#ifdef _LIBICONV_VERSION
msnprintf(iconv_version, sizeof(iconv_version), "iconv/%d.%d",
_LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
#else
/* version unknown, let the default stand */
#endif /* _LIBICONV_VERSION */
src[i++] = iconv_version;
#endif
#ifdef USE_SSH
Curl_ssh_version(ssh_version, sizeof(ssh_version));
src[i++] = ssh_version;
#endif
#ifdef USE_NGHTTP2
Curl_http2_ver(h2_version, sizeof(h2_version));
src[i++] = h2_version;
#endif
#ifdef ENABLE_QUIC
Curl_quic_ver(h3_version, sizeof(h3_version));
src[i++] = h3_version;
#endif
#ifdef USE_LIBRTMP
{
char suff[2];
if(RTMP_LIB_VERSION & 0xff) {
suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
suff[1] = '\0';
}
else
suff[0] = '\0';
msnprintf(rtmp_version, sizeof(rtmp_version), "librtmp/%d.%d%s",
RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
suff);
src[i++] = rtmp_version;
}
#endif
#ifdef USE_HYPER
msnprintf(hyper_buf, sizeof(hyper_buf), "Hyper/%s", hyper_version());
src[i++] = hyper_buf;
#endif
#ifdef USE_GSASL
msnprintf(gsasl_buf, sizeof(gsasl_buf), "libgsasl/%s",
gsasl_check_version(NULL));
src[i++] = gsasl_buf;
#endif
#ifdef USE_OPENLDAP
{
LDAPAPIInfo api;
api.ldapai_info_version = LDAP_API_INFO_VERSION;
if(ldap_get_option(NULL, LDAP_OPT_API_INFO, &api) == LDAP_OPT_SUCCESS) {
unsigned int patch = api.ldapai_vendor_version % 100;
unsigned int major = api.ldapai_vendor_version / 10000;
unsigned int minor =
((api.ldapai_vendor_version - major * 10000) - patch) / 100;
msnprintf(ldap_buf, sizeof(ldap_buf), "%s/%u.%u.%u",
api.ldapai_vendor_name, major, minor, patch);
src[i++] = ldap_buf;
ldap_memfree(api.ldapai_vendor_name);
ber_memvfree((void **)api.ldapai_extensions);
}
}
#endif
DEBUGASSERT(i <= VERSION_PARTS);
outp = &out[0];
outlen = sizeof(out);
for(j = 0; j < i; j++) {
size_t n = strlen(src[j]);
/* we need room for a space, the string and the final zero */
if(outlen <= (n + 2))
break;
if(j) {
/* prepend a space if not the first */
*outp++ = ' ';
outlen--;
}
memcpy(outp, src[j], n);
outp += n;
outlen -= n;
}
*outp = 0;
return out;
}
/* data for curl_version_info
Keep the list sorted alphabetically. It is also written so that each
protocol line has its own #if line to make things easier on the eye.
*/
static const char * const protocols[] = {
#ifndef CURL_DISABLE_DICT
"dict",
#endif
#ifndef CURL_DISABLE_FILE
"file",
#endif
#ifndef CURL_DISABLE_FTP
"ftp",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
"ftps",
#endif
#ifndef CURL_DISABLE_GOPHER
"gopher",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_GOPHER)
"gophers",
#endif
#ifndef CURL_DISABLE_HTTP
"http",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
"https",
#endif
#ifndef CURL_DISABLE_IMAP
"imap",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
"imaps",
#endif
#ifndef CURL_DISABLE_LDAP
"ldap",
#if !defined(CURL_DISABLE_LDAPS) && \
((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
(!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
"ldaps",
#endif
#endif
#ifndef CURL_DISABLE_MQTT
"mqtt",
#endif
#ifndef CURL_DISABLE_POP3
"pop3",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
"pop3s",
#endif
#ifdef USE_LIBRTMP
"rtmp",
#endif
#ifndef CURL_DISABLE_RTSP
"rtsp",
#endif
#if defined(USE_SSH) && !defined(USE_WOLFSSH)
"scp",
#endif
#ifdef USE_SSH
"sftp",
#endif
#if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \
(SIZEOF_CURL_OFF_T > 4)
"smb",
# ifdef USE_SSL
"smbs",
# endif
#endif
#ifndef CURL_DISABLE_SMTP
"smtp",
#endif
#if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
"smtps",
#endif
#ifndef CURL_DISABLE_TELNET
"telnet",
#endif
#ifndef CURL_DISABLE_TFTP
"tftp",
#endif
NULL
};
static curl_version_info_data version_info = {
CURLVERSION_NOW,
LIBCURL_VERSION,
LIBCURL_VERSION_NUM,
OS, /* as found by configure or set by hand at build-time */
0 /* features is 0 by default */
#ifdef ENABLE_IPV6
| CURL_VERSION_IPV6
#endif
#ifdef USE_SSL
| CURL_VERSION_SSL
#endif
#ifdef USE_NTLM
| CURL_VERSION_NTLM
#endif
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
| CURL_VERSION_NTLM_WB
#endif
#ifdef USE_SPNEGO
| CURL_VERSION_SPNEGO
#endif
#ifdef USE_KERBEROS5
| CURL_VERSION_KERBEROS5
#endif
#ifdef HAVE_GSSAPI
| CURL_VERSION_GSSAPI
#endif
#ifdef USE_WINDOWS_SSPI
| CURL_VERSION_SSPI
#endif
#ifdef HAVE_LIBZ
| CURL_VERSION_LIBZ
#endif
#ifdef DEBUGBUILD
| CURL_VERSION_DEBUG
#endif
#ifdef CURLDEBUG
| CURL_VERSION_CURLDEBUG
#endif
#ifdef CURLRES_ASYNCH
| CURL_VERSION_ASYNCHDNS
#endif
#if (SIZEOF_CURL_OFF_T > 4) && \
( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
| CURL_VERSION_LARGEFILE
#endif
#if defined(WIN32) && defined(UNICODE) && defined(_UNICODE)
| CURL_VERSION_UNICODE
#endif
#if defined(CURL_DOES_CONVERSIONS)
| CURL_VERSION_CONV
#endif
#if defined(USE_TLS_SRP)
| CURL_VERSION_TLSAUTH_SRP
#endif
#if defined(USE_NGHTTP2) || defined(USE_HYPER)
| CURL_VERSION_HTTP2
#endif
#if defined(ENABLE_QUIC)
| CURL_VERSION_HTTP3
#endif
#if defined(USE_UNIX_SOCKETS)
| CURL_VERSION_UNIX_SOCKETS
#endif
#if defined(USE_LIBPSL)
| CURL_VERSION_PSL
#endif
#if defined(CURL_WITH_MULTI_SSL)
| CURL_VERSION_MULTI_SSL
#endif
#if defined(HAVE_BROTLI)
| CURL_VERSION_BROTLI
#endif
#if defined(HAVE_ZSTD)
| CURL_VERSION_ZSTD
#endif
#ifndef CURL_DISABLE_ALTSVC
| CURL_VERSION_ALTSVC
#endif
#ifndef CURL_DISABLE_HSTS
| CURL_VERSION_HSTS
#endif
#if defined(USE_GSASL)
| CURL_VERSION_GSASL
#endif
,
NULL, /* ssl_version */
0, /* ssl_version_num, this is kept at zero */
NULL, /* zlib_version */
protocols,
NULL, /* c-ares version */
0, /* c-ares version numerical */
NULL, /* libidn version */
0, /* iconv version */
NULL, /* ssh lib version */
0, /* brotli_ver_num */
NULL, /* brotli version */
0, /* nghttp2 version number */
NULL, /* nghttp2 version string */
NULL, /* quic library string */
#ifdef CURL_CA_BUNDLE
CURL_CA_BUNDLE, /* cainfo */
#else
NULL,
#endif
#ifdef CURL_CA_PATH
CURL_CA_PATH, /* capath */
#else
NULL,
#endif
0, /* zstd_ver_num */
NULL, /* zstd version */
NULL, /* Hyper version */
NULL /* gsasl version */
};
curl_version_info_data *curl_version_info(CURLversion stamp)
{
#if defined(USE_SSH)
static char ssh_buffer[80];
#endif
#ifdef USE_SSL
#ifdef CURL_WITH_MULTI_SSL
static char ssl_buffer[200];
#else
static char ssl_buffer[80];
#endif
#endif
#ifdef HAVE_BROTLI
static char brotli_buffer[80];
#endif
#ifdef HAVE_ZSTD
static char zstd_buffer[80];
#endif
#ifdef USE_SSL
Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
version_info.ssl_version = ssl_buffer;
#ifndef CURL_DISABLE_PROXY
if(Curl_ssl->supports & SSLSUPP_HTTPS_PROXY)
version_info.features |= CURL_VERSION_HTTPS_PROXY;
else
version_info.features &= ~CURL_VERSION_HTTPS_PROXY;
#endif
#endif
#ifdef HAVE_LIBZ
version_info.libz_version = zlibVersion();
/* libz left NULL if non-existing */
#endif
#ifdef USE_ARES
{
int aresnum;
version_info.ares = ares_version(&aresnum);
version_info.ares_num = aresnum;
}
#endif
#ifdef USE_LIBIDN2
/* This returns a version string if we use the given version or later,
otherwise it returns NULL */
version_info.libidn = idn2_check_version(IDN2_VERSION);
if(version_info.libidn)
version_info.features |= CURL_VERSION_IDN;
#elif defined(USE_WIN32_IDN)
version_info.features |= CURL_VERSION_IDN;
#endif
#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
#ifdef _LIBICONV_VERSION
version_info.iconv_ver_num = _LIBICONV_VERSION;
#else
/* version unknown */
version_info.iconv_ver_num = -1;
#endif /* _LIBICONV_VERSION */
#endif
#if defined(USE_SSH)
Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer));
version_info.libssh_version = ssh_buffer;
#endif
#ifdef HAVE_BROTLI
version_info.brotli_ver_num = BrotliDecoderVersion();
brotli_version(brotli_buffer, sizeof(brotli_buffer));
version_info.brotli_version = brotli_buffer;
#endif
#ifdef HAVE_ZSTD
version_info.zstd_ver_num = (unsigned int)ZSTD_versionNumber();
zstd_version(zstd_buffer, sizeof(zstd_buffer));
version_info.zstd_version = zstd_buffer;
#endif
#ifdef USE_NGHTTP2
{
nghttp2_info *h2 = nghttp2_version(0);
version_info.nghttp2_ver_num = h2->version_num;
version_info.nghttp2_version = h2->version_str;
}
#endif
#ifdef ENABLE_QUIC
{
static char quicbuffer[80];
Curl_quic_ver(quicbuffer, sizeof(quicbuffer));
version_info.quic_version = quicbuffer;
}
#endif
#ifdef USE_HYPER
{
static char hyper_buffer[30];
msnprintf(hyper_buffer, sizeof(hyper_buffer), "Hyper/%s", hyper_version());
version_info.hyper_version = hyper_buffer;
}
#endif
#ifdef USE_GSASL
{
version_info.gsasl_version = gsasl_check_version(NULL);
}
#endif
(void)stamp; /* avoid compiler warnings, we don't use this */
return &version_info;
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/llist.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "llist.h"
#include "curl_memory.h"
/* this must be the last include file */
#include "memdebug.h"
/*
* @unittest: 1300
*/
void
Curl_llist_init(struct Curl_llist *l, Curl_llist_dtor dtor)
{
l->size = 0;
l->dtor = dtor;
l->head = NULL;
l->tail = NULL;
}
/*
* Curl_llist_insert_next()
*
* Inserts a new list element after the given one 'e'. If the given existing
* entry is NULL and the list already has elements, the new one will be
* inserted first in the list.
*
* The 'ne' argument should be a pointer into the object to store.
*
* @unittest: 1300
*/
void
Curl_llist_insert_next(struct Curl_llist *list, struct Curl_llist_element *e,
const void *p,
struct Curl_llist_element *ne)
{
ne->ptr = (void *) p;
if(list->size == 0) {
list->head = ne;
list->head->prev = NULL;
list->head->next = NULL;
list->tail = ne;
}
else {
/* if 'e' is NULL here, we insert the new element first in the list */
ne->next = e?e->next:list->head;
ne->prev = e;
if(!e) {
list->head->prev = ne;
list->head = ne;
}
else if(e->next) {
e->next->prev = ne;
}
else {
list->tail = ne;
}
if(e)
e->next = ne;
}
++list->size;
}
/*
* @unittest: 1300
*/
void
Curl_llist_remove(struct Curl_llist *list, struct Curl_llist_element *e,
void *user)
{
void *ptr;
if(!e || list->size == 0)
return;
if(e == list->head) {
list->head = e->next;
if(!list->head)
list->tail = NULL;
else
e->next->prev = NULL;
}
else {
if(e->prev)
e->prev->next = e->next;
if(!e->next)
list->tail = e->prev;
else
e->next->prev = e->prev;
}
ptr = e->ptr;
e->ptr = NULL;
e->prev = NULL;
e->next = NULL;
--list->size;
/* call the dtor() last for when it actually frees the 'e' memory itself */
if(list->dtor)
list->dtor(user, ptr);
}
void
Curl_llist_destroy(struct Curl_llist *list, void *user)
{
if(list) {
while(list->size > 0)
Curl_llist_remove(list, list->tail, user);
}
}
size_t
Curl_llist_count(struct Curl_llist *list)
{
return list->size;
}
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/config-tpf.h | #ifndef HEADER_CURL_CONFIG_TPF_H
#define HEADER_CURL_CONFIG_TPF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* ================================================================ */
/* Hand crafted config file for TPF */
/* ================================================================ */
/* ---------------------------------------------------------------- */
/* FEATURES, FUNCTIONS, and DEFINITIONS */
/* ---------------------------------------------------------------- */
/* NOTE: Refer also to the .mak file for some of the flags below */
/* to disable cookies support */
/* #undef CURL_DISABLE_COOKIES */
/* to disable cryptographic authentication */
/* #undef CURL_DISABLE_CRYPTO_AUTH */
/* to disable DICT */
/* #undef CURL_DISABLE_DICT */
/* to disable FILE */
/* #undef CURL_DISABLE_FILE */
/* to disable FTP */
/* #undef CURL_DISABLE_FTP */
/* to disable HTTP */
/* #undef CURL_DISABLE_HTTP */
/* to disable LDAP */
/* #undef CURL_DISABLE_LDAP */
/* to disable TELNET */
/* #undef CURL_DISABLE_TELNET */
/* to disable TFTP */
/* #undef CURL_DISABLE_TFTP */
/* to disable verbose strings */
/* #undef CURL_DISABLE_VERBOSE_STRINGS */
/* lber dynamic library file */
/* #undef DL_LBER_FILE */
/* ldap dynamic library file */
/* #undef DL_LDAP_FILE */
/* your Entropy Gathering Daemon socket pathname */
/* #undef EGD_SOCKET */
/* Define if you want to enable IPv6 support */
/* #undef ENABLE_IPV6 */
/* Define if struct sockaddr_in6 has the sin6_scope_id member */
/* #undef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID */
/* Define to 1 if you have the alarm function. */
#define HAVE_ALARM 1
/* Define to 1 if you have the <arpa/inet.h> header file. */
#define HAVE_ARPA_INET_H 1
/* Define to 1 if you have the <arpa/tftp.h> header file. */
/* #undef HAVE_ARPA_TFTP_H */
/* Define to 1 if you have the <assert.h> header file. */
#define HAVE_ASSERT_H 1
/* Define to 1 if you have the `basename' function. */
#define HAVE_BASENAME 1
/* Define to 1 if you have the `closesocket' function. */
/* #undef HAVE_CLOSESOCKET */
/* Define to 1 if you have the `CRYPTO_cleanup_all_ex_data' function. */
/* #undef HAVE_CRYPTO_CLEANUP_ALL_EX_DATA */
#define HAVE_CRYPTO_CLEANUP_ALL_EX_DATA 1
/* Define to 1 if you have the <errno.h> header file. */
#define HAVE_ERRNO_H 1
/* Define to 1 if you have the <fcntl.h> header file. */
#define HAVE_FCNTL_H 1
/* Define to 1 if you have the fcntl function. */
#define HAVE_FCNTL 1
/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
#define HAVE_FCNTL_O_NONBLOCK 1
/* Define to 1 if you have the `ftruncate' function. */
#define HAVE_FTRUNCATE 1
/* Define if getaddrinfo exists and works */
/* #undef HAVE_GETADDRINFO */
/* Define to 1 if you have the `geteuid' function. */
#define HAVE_GETEUID 1
/* If you have gethostbyname */
#define HAVE_GETHOSTBYNAME 1
/* Define to 1 if you have the `gethostbyname_r' function. */
/* #undef HAVE_GETHOSTBYNAME_R */
/* gethostbyname_r() takes 3 args */
/* #undef HAVE_GETHOSTBYNAME_R_3 */
/* gethostbyname_r() takes 5 args */
/* #undef HAVE_GETHOSTBYNAME_R_5 */
/* gethostbyname_r() takes 6 args */
/* #undef HAVE_GETHOSTBYNAME_R_6 1 */
/* Define to 1 if you have the `getpass_r' function. */
/* #undef HAVE_GETPASS_R */
/* Define to 1 if you have the `getprotobyname' function. */
/* #undef HAVE_GETPROTOBYNAME */
/* Define to 1 if you have the `getpwuid' function. */
#define HAVE_GETPWUID 1
/* Define to 1 if you have the `getrlimit' function. */
/* #undef HAVE_GETRLIMIT */
/* Define to 1 if you have the `gettimeofday' function. */
#define HAVE_GETTIMEOFDAY 1
/* we have a glibc-style strerror_r() */
/* #undef HAVE_GLIBC_STRERROR_R */
#define HAVE_GLIBC_STRERROR_R 1
/* Define to 1 if you have the `gmtime_r' function. */
#define HAVE_GMTIME_R 1
/* if you have the gssapi libraries */
/* #undef HAVE_GSSAPI */
/* if you have the GNU gssapi libraries */
/* #undef HAVE_GSSGNU */
/* if you have the Heimdal gssapi libraries */
/* #undef HAVE_GSSHEIMDAL */
/* if you have the MIT gssapi libraries */
/* #undef HAVE_GSSMIT */
/* Define to 1 if you have the `iconv' functions. */
#define HAVE_ICONV 1
/* Define to 1 if you have the `idna_strerror' function. */
/* #undef HAVE_IDNA_STRERROR */
/* Define to 1 if you have the `idn_free' function. */
/* #undef HAVE_IDN_FREE */
/* Define to 1 if you have the <idn-free.h> header file. */
/* #undef HAVE_IDN_FREE_H */
/* Define to 1 if you have the `inet_addr' function. */
#define HAVE_INET_ADDR 1
/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
/* #undef HAVE_INET_NTOP */
/* Define to 1 if you have a IPv6 capable working inet_pton function. */
/* #undef HAVE_INET_PTON */
/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1
/* Define to 1 if you have the ioctl function. */
#define HAVE_IOCTL 1
/* Define to 1 if you have a working ioctl FIONBIO function. */
#define HAVE_IOCTL_FIONBIO 1
/* Define to 1 if you have the ioctlsocket function. */
/* #undef HAVE_IOCTLSOCKET */
/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
/* #undef HAVE_IOCTLSOCKET_FIONBIO */
/* Define to 1 if you have the IoctlSocket camel case function. */
/* #undef HAVE_IOCTLSOCKET_CAMEL */
/* Define to 1 if you have a working IoctlSocket camel case FIONBIO
function. */
/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
/* Define to 1 if you have the <io.h> header file. */
/* #undef HAVE_IO_H */
/* if you have the Kerberos4 libraries (including -ldes) */
/* #undef HAVE_KRB4 */
/* Define to 1 if you have the `krb_get_our_ip_for_realm' function. */
/* #undef HAVE_KRB_GET_OUR_IP_FOR_REALM */
/* Define to 1 if you have the <krb.h> header file. */
/* #undef HAVE_KRB_H */
/* Define to 1 if you have the <libgen.h> header file. */
/* #undef HAVE_LIBGEN_H 1 */
/* Define to 1 if you have the `idn' library (-lidn). */
/* #undef HAVE_LIBIDN */
/* Define to 1 if you have the `resolv' library (-lresolv). */
/* #undef HAVE_LIBRESOLV */
/* Define to 1 if you have the `resolve' library (-lresolve). */
/* #undef HAVE_LIBRESOLVE */
/* Define to 1 if you have the `socket' library (-lsocket). */
/* #undef HAVE_LIBSOCKET */
/* if zlib is available */
/* #undef HAVE_LIBZ */
/* if your compiler supports LL */
#define HAVE_LL 1
/* Define to 1 if you have the <locale.h> header file. */
#define HAVE_LOCALE_H 1
/* Define to 1 if you have the `localtime_r' function. */
#define HAVE_LOCALTIME_R 1
/* Define to 1 if the compiler supports the 'long long' data type. */
#define HAVE_LONGLONG 1
/* Define to 1 if you need the malloc.h header file even with stdlib.h */
/* #undef NEED_MALLOC_H */
/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1
/* Define to 1 if you have the <netdb.h> header file. */
#define HAVE_NETDB_H 1
/* Define to 1 if you have the <netinet/in.h> header file. */
#define HAVE_NETINET_IN_H 1
/* Define to 1 if you have the <netinet/tcp.h> header file. */
/* undef HAVE_NETINET_TCP_H */
/* Define to 1 if you have the <net/if.h> header file. */
#define HAVE_NET_IF_H 1
/* Define if NI_WITHSCOPEID exists and works */
/* #undef HAVE_NI_WITHSCOPEID */
/* we have no strerror_r() proto */
/* #undef HAVE_NO_STRERROR_R_DECL */
/* Define to 1 if you have the <openssl/crypto.h> header file. */
/* #undef HAVE_OPENSSL_CRYPTO_H */
#define HAVE_OPENSSL_CRYPTO_H 1
/* Define to 1 if you have the <openssl/err.h> header file. */
/* #undef HAVE_OPENSSL_ERR_H */
#define HAVE_OPENSSL_ERR_H 1
/* Define to 1 if you have the <openssl/pem.h> header file. */
/* #undef HAVE_OPENSSL_PEM_H */
#define HAVE_OPENSSL_PEM_H 1
/* Define to 1 if you have the <openssl/pkcs12.h> header file. */
/* #undef HAVE_OPENSSL_PKCS12_H */
#define HAVE_OPENSSL_PKCS12_H 1
/* Define to 1 if you have the <openssl/rsa.h> header file. */
/* #undef HAVE_OPENSSL_RSA_H */
#define HAVE_OPENSSL_RSA_H 1
/* Define to 1 if you have the <openssl/ssl.h> header file. */
/* #undef HAVE_OPENSSL_SSL_H */
#define HAVE_OPENSSL_SSL_H 1
/* Define to 1 if you have the <openssl/x509.h> header file. */
/* #undef HAVE_OPENSSL_X509_H */
#define HAVE_OPENSSL_X509_H 1
/* Define to 1 if you have the <pem.h> header file. */
/* #undef HAVE_PEM_H */
#define HAVE_PEM_H 1
/* Define to 1 if you have the `pipe' function. */
#define HAVE_PIPE 1
/* Define to 1 if you have the `poll' function. */
/* #undef HAVE_POLL */
/* If you have a fine poll */
/* #undef HAVE_POLL_FINE */
/* we have a POSIX-style strerror_r() */
/* #undef HAVE_POSIX_STRERROR_R */
/* Define to 1 if you have the <pwd.h> header file. */
#define HAVE_PWD_H 1
/* Define to 1 if you have the `RAND_egd' function. */
/* #undef HAVE_RAND_EGD */
#define HAVE_RAND_EGD 1
/* Define to 1 if you have the `RAND_screen' function. */
/* #undef HAVE_RAND_SCREEN */
/* Define to 1 if you have the `RAND_status' function. */
/* #undef HAVE_RAND_STATUS */
#define HAVE_RAND_STATUS 1
/* Define to 1 if you have the `select' function. */
#define HAVE_SELECT 1
/* Define to 1 if you have the <setjmp.h> header file. */
#define HAVE_SETJMP_H 1
/* Define to 1 if you have the `setlocale' function. */
#define HAVE_SETLOCALE 1
/* Define to 1 if you have the `setrlimit' function. */
#define HAVE_SETRLIMIT 1
/* Define to 1 if you have the setsockopt function. */
/* #undef HAVE_SETSOCKOPT */
/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
/* Define to 1 if you have the `sigaction' function. */
#define HAVE_SIGACTION 1
/* Define to 1 if you have the `siginterrupt' function. */
/* #undef HAVE_SIGINTERRUPT */
/* Define to 1 if you have the `signal' function. */
#define HAVE_SIGNAL 1
/* Define to 1 if you have the <signal.h> header file. */
#define HAVE_SIGNAL_H 1
/* If you have sigsetjmp */
/* #undef HAVE_SIGSETJMP */
/* Define to 1 if you have the `socket' function. */
#define HAVE_SOCKET 1
/* Define to 1 if you have the <ssl.h> header file. */
/* #undef HAVE_SSL_H */
#define HAVE_SSL_H 1
/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1
/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1
/* Define to 1 if you have the `strcasecmp' function. */
#define HAVE_STRCASECMP 1
/* Define to 1 if you have the `strcmpi' function. */
/* #undef HAVE_STRCMPI */
/* Define to 1 if you have the `strdup' function. */
#define HAVE_STRDUP 1
/* Define to 1 if you have the `strerror_r' function. */
#define HAVE_STRERROR_R 1
/* Define to 1 if you have the `stricmp' function. */
/* #undef HAVE_STRICMP */
#define HAVE_STRICMP 1
/* Define to 1 if you have the <strings.h> header file. */
#define HAVE_STRINGS_H 1
/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1
/* Define to 1 if you have the `strstr' function. */
#define HAVE_STRSTR 1
/* Define to 1 if you have the `strtok_r' function. */
#define HAVE_STRTOK_R 1
/* Define to 1 if you have the `strtoll' function. */
#define HAVE_STRTOLL 1
/* if struct sockaddr_storage is defined */
/* #undef HAVE_STRUCT_SOCKADDR_STORAGE */
/* Define this if you have struct timeval */
#define HAVE_STRUCT_TIMEVAL 1
/* Define to 1 if you have the <sys/filio.h> header file. */
#define HAVE_SYS_FILIO_H 1
/* Define to 1 if you have the <sys/ioctl.h> header file. */
#define HAVE_SYS_IOCTL_H 1
/* Define to 1 if you have the <sys/param.h> header file. */
#define HAVE_SYS_PARAM_H 1
/* Define to 1 if you have the <sys/poll.h> header file. */
/* #undef HAVE_SYS_POLL_H */
/* Define to 1 if you have the <sys/resource.h> header file. */
#define HAVE_SYS_RESOURCE_H 1
/* Define to 1 if you have the <sys/select.h> header file. */
#define HAVE_SYS_SELECT_H 1
/* Define to 1 if you have the <sys/socket.h> header file. */
#define HAVE_SYS_SOCKET_H 1
/* Define to 1 if you have the <sys/sockio.h> header file. */
/* #undef HAVE_SYS_SOCKIO_H */
#define HAVE_SYS_SOCKIO_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#define HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/time.h> header file. */
#define HAVE_SYS_TIME_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#define HAVE_SYS_TYPES_H 1
/* Define to 1 if you have the <sys/utime.h> header file. */
/* #undef HAVE_SYS_UTIME_H */
/* Define to 1 if you have the <termios.h> header file. */
/* #undef HAVE_TERMIOS_H */
/* Define to 1 if you have the <termio.h> header file. */
/* #undef HAVE_TERMIO_H */
/* Define to 1 if you have the <time.h> header file. */
#define HAVE_TIME_H 1
/* Define to 1 if you have the <tld.h> header file. */
/* #undef HAVE_TLD_H */
/* Define to 1 if you have the `tld_strerror' function. */
/* #undef HAVE_TLD_STRERROR */
/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1
/* Define to 1 if you have the `utime' function. */
#define HAVE_UTIME 1
/* Define to 1 if you have the <utime.h> header file. */
#define HAVE_UTIME_H 1
/* Define to 1 if you have the <winsock2.h> header file. */
/* #undef HAVE_WINSOCK2_H */
/* Define this symbol if your OS supports changing the contents of argv */
/* #undef HAVE_WRITABLE_ARGV */
/* Define to 1 if you have the ws2tcpip.h header file. */
/* #undef HAVE_WS2TCPIP_H */
/* Define to 1 if you have the <x509.h> header file. */
/* #undef HAVE_X509_H */
/* if you have the zlib.h header file */
/* #undef HAVE_ZLIB_H */
/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
/* #undef NEED_REENTRANT */
/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
/* #undef NEED_THREAD_SAFE */
/* cpu-machine-OS */
#define OS "s390x-ibm-tpf"
/* Name of package */
#define PACKAGE "curl"
/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT \
"a suitable curl mailing list => https://curl.se/mail/"
/* Define to the full name of this package. */
#define PACKAGE_NAME "curl"
/* Define to the full name and version of this package. */
#define PACKAGE_STRING "curl -"
/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "curl"
/* Define to the version of this package. */
#define PACKAGE_VERSION "-"
/* a suitable file to read random data from */
/* #undef RANDOM_FILE */
/* Define to the type of arg 1 for `select'. */
#define SELECT_TYPE_ARG1 int
/* Define to the type of args 2, 3 and 4 for `select'. */
#define SELECT_TYPE_ARG234 (fd_set *)
/* Define to the type of arg 5 for `select'. */
#define SELECT_TYPE_ARG5 (struct timeval *)
/* The size of `int', as computed by sizeof. */
#define SIZEOF_INT 4
/* The size of `off_t', as computed by sizeof. */
#define SIZEOF_OFF_T 8
/* The size of `short', as computed by sizeof. */
#define SIZEOF_SHORT 2
/* Define to the size of `long', as computed by sizeof. */
#define SIZEOF_LONG 8
/* The size of `size_t', as computed by sizeof. */
#define SIZEOF_SIZE_T 8
/* The size of `time_t', as computed by sizeof. */
#define SIZEOF_TIME_T 8
/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1
/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
#define TIME_WITH_SYS_TIME 1
/* Define if you want to enable ares support */
/* #undef USE_ARES */
/* if GnuTLS is enabled */
/* #undef USE_GNUTLS */
/* If you want to build curl with the built-in manual */
/* #undef USE_MANUAL */
/* if OpenSSL is in use */
/* #undef USE_OPENSSL */
/* if SSL is enabled */
/* #undef USE_OPENSSL */
/* to enable SSPI support */
/* #undef USE_WINDOWS_SSPI */
/* Version number of package */
#define VERSION "not-used"
/* Define to avoid automatic inclusion of winsock.h */
/* #undef WIN32_LEAN_AND_MEAN */
/* Define to 1 if on AIX 3.
System headers sometimes define this.
We just want to avoid a redefinition error message. */
#ifndef _ALL_SOURCE
/* # undef _ALL_SOURCE */
#endif
/* Number of bits in a file offset, on hosts where this is settable. */
/* #undef _FILE_OFFSET_BITS */
/* Define for large files, on AIX-style hosts. */
/* #undef _LARGE_FILES */
/* Define to empty if `const' does not conform to ANSI C. */
/* #undef const */
/* type to use in place of in_addr_t if not defined */
/* #undef in_addr_t */
/* Define to `unsigned' if <sys/types.h> does not define. */
/* #undef size_t */
/* the signed version of size_t */
/* #undef ssize_t */
/* Define to 1 if you have the recv function. */
#define HAVE_RECV 1
/* Define to the type of arg 1 for recv. */
#define RECV_TYPE_ARG1 int
/* Define to the type of arg 2 for recv. */
#define RECV_TYPE_ARG2 char *
/* Define to the type of arg 3 for recv. */
#define RECV_TYPE_ARG3 int
/* Define to the type of arg 4 for recv. */
#define RECV_TYPE_ARG4 int
/* Define to the function return type for recv. */
#define RECV_TYPE_RETV int
/* Define to 1 if you have the recvfrom function. */
#define HAVE_RECVFROM 1
/* Define to the type of arg 1 for recvfrom. */
#define RECVFROM_TYPE_ARG1 int
/* Define to the type pointed by arg 2 for recvfrom. */
#define RECVFROM_TYPE_ARG2 char
/* Define to the type of arg 3 for recvfrom. */
#define RECVFROM_TYPE_ARG3 int
/* Define to the type of arg 4 for recvfrom. */
#define RECVFROM_TYPE_ARG4 int
/* Define to the type pointed by arg 5 for recvfrom. */
#define RECVFROM_TYPE_ARG5 struct sockaddr
/* Define to the type pointed by arg 6 for recvfrom. */
#define RECVFROM_TYPE_ARG6 int
/* Define to the function return type for recvfrom. */
#define RECVFROM_TYPE_RETV int
/* Define to 1 if you have the send function. */
#define HAVE_SEND 1
/* Define to the type of arg 1 for send. */
#define SEND_TYPE_ARG1 int
/* Define to the type qualifier of arg 2 for send. */
#define SEND_QUAL_ARG2 const
/* Define to the type of arg 2 for send. */
#define SEND_TYPE_ARG2 char *
/* Define to the type of arg 3 for send. */
#define SEND_TYPE_ARG3 int
/* Define to the type of arg 4 for send. */
#define SEND_TYPE_ARG4 int
/* Define to the function return type for send. */
#define SEND_TYPE_RETV int
#define CURL_DOES_CONVERSIONS
#ifndef CURL_ICONV_CODESET_OF_HOST
#define CURL_ICONV_CODESET_OF_HOST "IBM-1047"
#endif
#endif /* HEADER_CURL_CONFIG_TPF_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/hostasyn.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2021, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/***********************************************************************
* Only for builds using asynchronous name resolves
**********************************************************************/
#ifdef CURLRES_ASYNCH
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "share.h"
#include "url.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Curl_addrinfo_callback() gets called by ares, gethostbyname_thread()
* or getaddrinfo_thread() when we got the name resolved (or not!).
*
* If the status argument is CURL_ASYNC_SUCCESS, this function takes
* ownership of the Curl_addrinfo passed, storing the resolved data
* in the DNS cache.
*
* The storage operation locks and unlocks the DNS cache.
*/
CURLcode Curl_addrinfo_callback(struct Curl_easy *data,
int status,
struct Curl_addrinfo *ai)
{
struct Curl_dns_entry *dns = NULL;
CURLcode result = CURLE_OK;
data->state.async.status = status;
if(CURL_ASYNC_SUCCESS == status) {
if(ai) {
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = Curl_cache_addr(data, ai,
data->state.async.hostname,
data->state.async.port);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
if(!dns) {
/* failed to store, cleanup and return error */
Curl_freeaddrinfo(ai);
result = CURLE_OUT_OF_MEMORY;
}
}
else {
result = CURLE_OUT_OF_MEMORY;
}
}
data->state.async.dns = dns;
/* Set async.done TRUE last in this function since it may be used multi-
threaded and once this is TRUE the other thread may read fields from the
async struct */
data->state.async.done = TRUE;
/* IPv4: The input hostent struct will be freed by ares when we return from
this function */
return result;
}
/*
* Curl_getaddrinfo() is the generic low-level name resolve API within this
* source file. There are several versions of this function - for different
* name resolve layers (selected at build-time). They all take this same set
* of arguments
*/
struct Curl_addrinfo *Curl_getaddrinfo(struct Curl_easy *data,
const char *hostname,
int port,
int *waitp)
{
return Curl_resolver_getaddrinfo(data, hostname, port, waitp);
}
#endif /* CURLRES_ASYNCH */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/fileinfo.c | /***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#include "strdup.h"
#include "fileinfo.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
struct fileinfo *Curl_fileinfo_alloc(void)
{
return calloc(1, sizeof(struct fileinfo));
}
void Curl_fileinfo_cleanup(struct fileinfo *finfo)
{
if(!finfo)
return;
Curl_safefree(finfo->info.b_data);
free(finfo);
}
#endif
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/timeval.h | #ifndef HEADER_CURL_TIMEVAL_H
#define HEADER_CURL_TIMEVAL_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/* Use a larger type even for 32 bit time_t systems so that we can keep
microsecond accuracy in it */
typedef curl_off_t timediff_t;
#define CURL_FORMAT_TIMEDIFF_T CURL_FORMAT_CURL_OFF_T
#define TIMEDIFF_T_MAX CURL_OFF_T_MAX
#define TIMEDIFF_T_MIN CURL_OFF_T_MIN
struct curltime {
time_t tv_sec; /* seconds */
int tv_usec; /* microseconds */
};
struct curltime Curl_now(void);
/*
* Make sure that the first argument (t1) is the more recent time and t2 is
* the older time, as otherwise you get a weird negative time-diff back...
*
* Returns: the time difference in number of milliseconds.
*/
timediff_t Curl_timediff(struct curltime t1, struct curltime t2);
/*
* Make sure that the first argument (t1) is the more recent time and t2 is
* the older time, as otherwise you get a weird negative time-diff back...
*
* Returns: the time difference in number of microseconds.
*/
timediff_t Curl_timediff_us(struct curltime newer, struct curltime older);
#endif /* HEADER_CURL_TIMEVAL_H */
|
0 | repos/gpt4all.zig/src/zig-libcurl/curl | repos/gpt4all.zig/src/zig-libcurl/curl/lib/fileinfo.h | #ifndef HEADER_CURL_FILEINFO_H
#define HEADER_CURL_FILEINFO_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010 - 2020, Daniel Stenberg, <[email protected]>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h>
#include "llist.h"
struct fileinfo {
struct curl_fileinfo info;
struct Curl_llist_element list;
};
struct fileinfo *Curl_fileinfo_alloc(void);
void Curl_fileinfo_cleanup(struct fileinfo *finfo);
#endif /* HEADER_CURL_FILEINFO_H */
|
Subsets and Splits