text: /*
       This file is part of libmicrohttpd
       Copyright (C) 2007, 2008 Christian Grothoff
  
       libmicrohttpd is free software; you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published
       by the Free Software Foundation; either version 2, or (at your
       option) any later version.
  
       libmicrohttpd is distributed in the hope that it will be useful, but
       WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       General Public License for more details.
  
       You should have received a copy of the GNU General Public License
       along with libmicrohttpd; see the file COPYING.  If not, write to the
       Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
       Boston, MA 02110-1301, USA.
  */
  
  /**
   * @file test_large_put.c
   * @brief  Testcase for libmicrohttpd PUT operations
   * @author Christian Grothoff
   */
  
  #include "MHD_config.h"
  #include "platform.h"
  #include <curl/curl.h>
  #include <microhttpd.h>
  #include <stdlib.h>
  #include <string.h>
  #include <time.h>
  
  #ifndef WINDOWS
  #include <unistd.h>
  #endif
  
  #include "test_helpers.h"
  
  #if defined(CPU_COUNT) && (CPU_COUNT+0) < 2
  #undef CPU_COUNT
  #endif
  #if !defined(CPU_COUNT)
  #define CPU_COUNT 2
  #endif
  
  static int oneone;
  static int incr_read; /* Use incremental read */
  static int verbose; /* Be verbose */
  
  #define PUT_SIZE (256 * 1024)
  
  static char *put_buffer;
  
  struct CBC
  {
    char *buf;
    size_t pos;
    size_t size;
  };
  
  char*
  alloc_init(size_t buf_size)
  {
    static const char template[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abcdefghijklmnopqrstuvwxyz";
    static const size_t templ_size = sizeof(template) / sizeof(char) - 1;
    char *buf;
    char *fill_ptr;
    size_t to_fill;
  
    buf = malloc(buf_size);
    if (NULL == buf)
      return NULL;
  
    fill_ptr = buf;
    to_fill = buf_size;
    while (to_fill > 0)
      {
        const size_t to_copy = to_fill > templ_size ? templ_size : to_fill;
        memcpy (fill_ptr, template, to_copy);
        fill_ptr += to_copy;
        to_fill -= to_copy;
      }
    return buf;
  }
  
  static size_t
  putBuffer (void *stream, size_t size, size_t nmemb, void *ptr)
  {
    size_t *pos = (size_t *)ptr;
    size_t wrt;
  
    wrt = size * nmemb;
    /* Check for overflow. */
    if (wrt / size != nmemb)
      return 0;
    if (wrt > PUT_SIZE - (*pos))
      wrt = PUT_SIZE - (*pos);
    memcpy (stream, &put_buffer[*pos], wrt);
    (*pos) += wrt;
    return wrt;
  }
  
  static size_t
  copyBuffer (void *ptr, size_t size, size_t nmemb, void *ctx)
  {
    struct CBC *cbc = ctx;
  
    if (cbc->pos + size * nmemb > cbc->size)
      return 0;                   /* overflow */
    memcpy (&cbc->buf[cbc->pos], ptr, size * nmemb);
    cbc->pos += size * nmemb;
    return size * nmemb;
  }
  
  static int
  ahc_echo (void *cls,
            struct MHD_Connection *connection,
            const char *url,
            const char *method,
            const char *version,
            const char *upload_data, size_t *upload_data_size,
            void **pparam)
  {
    int *done = cls;
    struct MHD_Response *response;
    int ret;
    static size_t processed;
    (void)version;        /* Unused. Silent compiler warning. */
  
    if (0 != strcmp ("PUT", method))
      return MHD_NO;              /* unexpected method */
    if ((*done) == 0)
      {
        size_t *pproc;
        if (NULL == *pparam)
          {
            processed = 0;
            *pparam = &processed; /* Safe as long as only one parallel request served. */
          }
        pproc = (size_t*) *pparam;
  
        if (0 == *upload_data_size)
          return MHD_YES; /* No data to process. */
  
        if (*pproc + *upload_data_size > PUT_SIZE)
          {
            fprintf (stderr, "Incoming data larger than expected.\n");
            return MHD_NO;
          }
        if ( (!incr_read) && (*upload_data_size != PUT_SIZE) )
          return MHD_YES; /* Wait until whole request is received. */
  
        if (0 != memcmp(upload_data, put_buffer + (*pproc), *upload_data_size))
          {
            fprintf (stderr, "Incoming data does not match sent data.\n");
            return MHD_NO;
          }
        *pproc += *upload_data_size;
        *upload_data_size = 0; /* Current block of data is fully processed. */
  
        if (PUT_SIZE == *pproc)
          *done = 1; /* Whole request is processed. */
        return MHD_YES;
      }
    response = MHD_create_response_from_buffer (strlen (url),
  					      (void *) url,
  					      MHD_RESPMEM_MUST_COPY);
    ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
    MHD_destroy_response (response);
    return ret;
  }
  
  
  static int
  testPutInternalThread (unsigned int add_flag)
  {
    struct MHD_Daemon *d;
    CURL *c;
    struct CBC cbc;
    size_t pos = 0;
    int done_flag = 0;
    CURLcode errornum;
    char buf[2048];
    int port;
  
    if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
      port = 0;
    else
      {
        port = 1270;
        if (oneone)
          port += 10;
        if (incr_read)
          port += 20;
      }
  
    cbc.buf = buf;
    cbc.size = 2048;
    cbc.pos = 0;
    d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | add_flag,
                          port,
                          NULL, NULL, &ahc_echo, &done_flag,
  			MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t)(incr_read ? 1024 : (PUT_SIZE * 4 / 3)),
  			MHD_OPTION_END);
    if (d == NULL)
      return 1;
    if (0 == port)
      {
        const union MHD_DaemonInfo *dinfo;
        dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
        if (NULL == dinfo || 0 == dinfo->port)
          { MHD_stop_daemon (d); return 32; }
        port = (int)dinfo->port;
      }
    c = curl_easy_init ();
    curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
    curl_easy_setopt (c, CURLOPT_PORT, (long)port);
    curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
    curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
    curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
    curl_easy_setopt (c, CURLOPT_READDATA, &pos);
    curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
    curl_easy_setopt (c, CURLOPT_INFILESIZE, (long) PUT_SIZE);
    curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
    curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
    if (oneone)
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    else
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
    /* NOTE: use of CONNECTTIMEOUT without also
     *   setting NOSIGNAL results in really weird
     *   crashes on my system! */
    curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
    if (CURLE_OK != (errornum = curl_easy_perform (c)))
      {
        fprintf (stderr,
                 "curl_easy_perform failed: `%s'\n",
                 curl_easy_strerror (errornum));
        curl_easy_cleanup (c);
        MHD_stop_daemon (d);
        return 2;
      }
    curl_easy_cleanup (c);
    MHD_stop_daemon (d);
    if (cbc.pos != strlen ("/hello_world"))
      return 4;
    if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
      return 8;
    return 0;
  }
  
  static int
  testPutThreadPerConn (unsigned int add_flag)
  {
    struct MHD_Daemon *d;
    CURL *c;
    struct CBC cbc;
    size_t pos = 0;
    int done_flag = 0;
    CURLcode errornum;
    char buf[2048];
    int port;
  
    if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
      port = 0;
    else
      {
        port = 1271;
        if (oneone)
          port += 10;
        if (incr_read)
          port += 20;
      }
  
    cbc.buf = buf;
    cbc.size = 2048;
    cbc.pos = 0;
    d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_INTERNAL_POLLING_THREAD |
                            MHD_USE_ERROR_LOG | add_flag,
                          port,
                          NULL, NULL, &ahc_echo, &done_flag,
                          MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t)(incr_read ? 1024 : (PUT_SIZE * 4)),
  			MHD_OPTION_END);
    if (d == NULL)
      return 16;
    if (0 == port)
      {
        const union MHD_DaemonInfo *dinfo;
        dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
        if (NULL == dinfo || 0 == dinfo->port)
          { MHD_stop_daemon (d); return 32; }
        port = (int)dinfo->port;
      }
    c = curl_easy_init ();
    curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
    curl_easy_setopt (c, CURLOPT_PORT, (long)port);
    curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
    curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
    curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
    curl_easy_setopt (c, CURLOPT_READDATA, &pos);
    curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
    curl_easy_setopt (c, CURLOPT_INFILESIZE, (long) PUT_SIZE);
    curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
    curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
    if (oneone)
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    else
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
    /* NOTE: use of CONNECTTIMEOUT without also
     *   setting NOSIGNAL results in really weird
     *   crashes on my system! */
    curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
    if (CURLE_OK != (errornum = curl_easy_perform (c)))
      {
        fprintf (stderr,
                 "curl_easy_perform failed: `%s'\n",
                 curl_easy_strerror (errornum));
        curl_easy_cleanup (c);
        MHD_stop_daemon (d);
        return 32;
      }
    curl_easy_cleanup (c);
    MHD_stop_daemon (d);
    if (cbc.pos != strlen ("/hello_world"))
      {
        fprintf (stderr, "Got invalid response `%.*s'\n", (int)cbc.pos, cbc.buf);
        return 64;
      }
    if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
      return 128;
    return 0;
  }
  
  static int
  testPutThreadPool (unsigned int add_flag)
  {
    struct MHD_Daemon *d;
    CURL *c;
    struct CBC cbc;
    size_t pos = 0;
    int done_flag = 0;
    CURLcode errornum;
    char buf[2048];
    int port;
  
    if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
      port = 0;
    else
      {
        port = 1272;
        if (oneone)
          port += 10;
        if (incr_read)
          port += 20;
      }
  
    cbc.buf = buf;
    cbc.size = 2048;
    cbc.pos = 0;
    d = MHD_start_daemon (MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG | add_flag,
                          port,
                          NULL, NULL, &ahc_echo, &done_flag,
                          MHD_OPTION_THREAD_POOL_SIZE, CPU_COUNT,
                          MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t)(incr_read ? 1024 : (PUT_SIZE * 4)),
  			MHD_OPTION_END);
    if (d == NULL)
      return 16;
    if (0 == port)
      {
        const union MHD_DaemonInfo *dinfo;
        dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
        if (NULL == dinfo || 0 == dinfo->port)
          { MHD_stop_daemon (d); return 32; }
        port = (int)dinfo->port;
      }
    c = curl_easy_init ();
    curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
    curl_easy_setopt (c, CURLOPT_PORT, (long)port);
    curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
    curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
    curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
    curl_easy_setopt (c, CURLOPT_READDATA, &pos);
    curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
    curl_easy_setopt (c, CURLOPT_INFILESIZE, (long) PUT_SIZE);
    curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
    curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
    if (oneone)
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    else
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
    /* NOTE: use of CONNECTTIMEOUT without also
     *   setting NOSIGNAL results in really weird
     *   crashes on my system! */
    curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
    if (CURLE_OK != (errornum = curl_easy_perform (c)))
      {
        fprintf (stderr,
                 "curl_easy_perform failed: `%s'\n",
                 curl_easy_strerror (errornum));
        curl_easy_cleanup (c);
        MHD_stop_daemon (d);
        return 32;
      }
    curl_easy_cleanup (c);
    MHD_stop_daemon (d);
    if (cbc.pos != strlen ("/hello_world"))
      {
        fprintf (stderr, "Got invalid response `%.*s'\n", (int)cbc.pos, cbc.buf);
        return 64;
      }
    if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
      return 128;
    return 0;
  }
  
  static int
  testPutExternal (void)
  {
    struct MHD_Daemon *d;
    CURL *c;
    struct CBC cbc;
    CURLM *multi;
    CURLMcode mret;
    fd_set rs;
    fd_set ws;
    fd_set es;
    MHD_socket maxsock;
  #ifdef MHD_WINSOCK_SOCKETS
    int maxposixs; /* Max socket number unused on W32 */
  #else  /* MHD_POSIX_SOCKETS */
  #define maxposixs maxsock
  #endif /* MHD_POSIX_SOCKETS */
    int running;
    struct CURLMsg *msg;
    time_t start;
    struct timeval tv;
    size_t pos = 0;
    int done_flag = 0;
    char buf[2048];
    int port;
  
    if (MHD_NO != MHD_is_feature_supported (MHD_FEATURE_AUTODETECT_BIND_PORT))
      port = 0;
    else
      {
        port = 1273;
        if (oneone)
          port += 10;
        if (incr_read)
          port += 20;
      }
  
    cbc.buf = buf;
    cbc.size = 2048;
    cbc.pos = 0;
    multi = NULL;
    d = MHD_start_daemon (MHD_USE_ERROR_LOG,
                          port,
                          NULL, NULL, &ahc_echo, &done_flag,
                          MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t)(incr_read ? 1024 : (PUT_SIZE * 4)),
                          MHD_OPTION_END);
    if (d == NULL)
      return 256;
    if (0 == port)
      {
        const union MHD_DaemonInfo *dinfo;
        dinfo = MHD_get_daemon_info (d, MHD_DAEMON_INFO_BIND_PORT);
        if (NULL == dinfo || 0 == dinfo->port)
          { MHD_stop_daemon (d); return 32; }
        port = (int)dinfo->port;
      }
    c = curl_easy_init ();
    curl_easy_setopt (c, CURLOPT_URL, "http://127.0.0.1/hello_world");
    curl_easy_setopt (c, CURLOPT_PORT, (long)port);
    curl_easy_setopt (c, CURLOPT_WRITEFUNCTION, &copyBuffer);
    curl_easy_setopt (c, CURLOPT_WRITEDATA, &cbc);
    curl_easy_setopt (c, CURLOPT_READFUNCTION, &putBuffer);
    curl_easy_setopt (c, CURLOPT_READDATA, &pos);
    curl_easy_setopt (c, CURLOPT_UPLOAD, 1L);
    curl_easy_setopt (c, CURLOPT_INFILESIZE, (long) PUT_SIZE);
    curl_easy_setopt (c, CURLOPT_FAILONERROR, 1L);
    curl_easy_setopt (c, CURLOPT_TIMEOUT, 150L);
    if (oneone)
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
    else
      curl_easy_setopt (c, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    curl_easy_setopt (c, CURLOPT_CONNECTTIMEOUT, 150L);
    /* NOTE: use of CONNECTTIMEOUT without also
     *   setting NOSIGNAL results in really weird
     *   crashes on my system! */
    curl_easy_setopt (c, CURLOPT_NOSIGNAL, 1L);
  
  
    multi = curl_multi_init ();
    if (multi == NULL)
      {
        curl_easy_cleanup (c);
        MHD_stop_daemon (d);
        return 512;
      }
    mret = curl_multi_add_handle (multi, c);
    if (mret != CURLM_OK)
      {
        curl_multi_cleanup (multi);
        curl_easy_cleanup (c);
        MHD_stop_daemon (d);
        return 1024;
      }
    start = time (NULL);
    while ((time (NULL) - start < 5) && (multi != NULL))
      {
        maxsock = MHD_INVALID_SOCKET;
        maxposixs = -1;
        FD_ZERO (&rs);
        FD_ZERO (&ws);
        FD_ZERO (&es);
        curl_multi_perform (multi, &running);
        mret = curl_multi_fdset (multi, &rs, &ws, &es, &maxposixs);
        if (mret != CURLM_OK)
          {
            curl_multi_remove_handle (multi, c);
            curl_multi_cleanup (multi);
            curl_easy_cleanup (c);
            MHD_stop_daemon (d);
            return 2048;
          }
        if (MHD_YES != MHD_get_fdset (d, &rs, &ws, &es, &maxsock))
          {
            curl_multi_remove_handle (multi, c);
            curl_multi_cleanup (multi);
            curl_easy_cleanup (c);
            MHD_stop_daemon (d);
            return 4096;
          }
        tv.tv_sec = 0;
        tv.tv_usec = 1000;
        if (-1 == select (maxposixs + 1, &rs, &ws, &es, &tv))
          {
  #ifdef MHD_POSIX_SOCKETS
            if (EINTR != errno)
              abort ();
  #else
            if (WSAEINVAL != WSAGetLastError() || 0 != rs.fd_count || 0 != ws.fd_count || 0 != es.fd_count)
              abort ();
            Sleep (1000);
  #endif
          }
        curl_multi_perform (multi, &running);
        if (running == 0)
          {
            msg = curl_multi_info_read (multi, &running);
            if (msg == NULL)
              break;
            if (msg->msg == CURLMSG_DONE)
              {
                if (msg->data.result != CURLE_OK)
                  printf ("%s failed at %s:%d: `%s'\n",
                          "curl_multi_perform",
                          __FILE__,
                          __LINE__, curl_easy_strerror (msg->data.result));
                curl_multi_remove_handle (multi, c);
                curl_multi_cleanup (multi);
                curl_easy_cleanup (c);
                c = NULL;
                multi = NULL;
              }
          }
        MHD_run (d);
      }
    if (multi != NULL)
      {
        curl_multi_remove_handle (multi, c);
        curl_easy_cleanup (c);
        curl_multi_cleanup (multi);
      }
    MHD_stop_daemon (d);
    if (cbc.pos != strlen ("/hello_world"))
      {
        fprintf (stderr, "Got invalid response `%.*s'\n", (int)cbc.pos, cbc.buf);
        return 8192;
      }
    if (0 != strncmp ("/hello_world", cbc.buf, strlen ("/hello_world")))
      return 16384;
    return 0;
  }
  
  
  
  int
  main (int argc, char *const *argv)
  {
    unsigned int errorCount = 0;
    unsigned int lastErr;
  
    oneone = has_in_name(argv[0], "11");
    incr_read = has_in_name(argv[0], "_inc");
    verbose = has_param(argc, argv, "-v");
    if (0 != curl_global_init (CURL_GLOBAL_WIN32))
      return 99;
    put_buffer = alloc_init (PUT_SIZE);
    if (NULL == put_buffer)
      return 99;
    lastErr = testPutExternal ();
    if (verbose && 0 != lastErr)
      fprintf (stderr, "Error during testing with external select().\n");
    errorCount += lastErr;
    if (MHD_YES == MHD_is_feature_supported(MHD_FEATURE_THREADS))
      {
        lastErr = testPutInternalThread (0);
        if (verbose && 0 != lastErr)
  	fprintf (stderr, "Error during testing with internal thread with select().\n");
        errorCount += lastErr;
        lastErr = testPutThreadPerConn (0);
        if (verbose && 0 != lastErr)
  	fprintf (stderr, "Error during testing with internal thread per connection with select().\n");
        errorCount += lastErr;
        lastErr = testPutThreadPool (0);
        if (verbose && 0 != lastErr)
  	fprintf (stderr, "Error during testing with thread pool per connection with select().\n");
        errorCount += lastErr;
        if (MHD_is_feature_supported(MHD_FEATURE_POLL))
  	{
  	  lastErr = testPutInternalThread (MHD_USE_POLL);
  	  if (verbose && 0 != lastErr)
  	    fprintf (stderr, "Error during testing with internal thread with poll().\n");
  	  errorCount += lastErr;
  	  lastErr = testPutThreadPerConn (MHD_USE_POLL);
  	  if (verbose && 0 != lastErr)
  	    fprintf (stderr, "Error during testing with internal thread per connection with poll().\n");
  	  errorCount += lastErr;
  	  lastErr = testPutThreadPool (MHD_USE_POLL);
  	  if (verbose && 0 != lastErr)
  	    fprintf (stderr, "Error during testing with thread pool per connection with poll().\n");
  	  errorCount += lastErr;
  	}
        if (MHD_is_feature_supported(MHD_FEATURE_EPOLL))
  	{
  	  lastErr = testPutInternalThread (MHD_USE_EPOLL);
  	  if (verbose && 0 != lastErr)
  	    fprintf (stderr, "Error during testing with internal thread with epoll.\n");
  	  errorCount += lastErr;
  	  lastErr = testPutThreadPool (MHD_USE_EPOLL);
  	  if (verbose && 0 != lastErr)
  	    fprintf (stderr, "Error during testing with thread pool per connection with epoll.\n");
  	  errorCount += lastErr;
  	}
      }
    free (put_buffer);
    if (errorCount != 0)
      fprintf (stderr, "Error (code: %u)\n", errorCount);
    else if (verbose)
      printf ("All checks passed successfully.\n");
    curl_global_cleanup ();
    return (errorCount == 0) ? 0 : 1;
  }
  