text: /*-
   * Copyright (c) 2003-2007 Tim Kientzle
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "archive_platform.h"
  __FBSDID("$FreeBSD: head/lib/libarchive/archive_write_open_filename.c 191165 2009-04-17 00:39:35Z kientzle $");
  
  #ifdef HAVE_SYS_STAT_H
  #include <sys/stat.h>
  #endif
  #ifdef HAVE_ERRNO_H
  #include <errno.h>
  #endif
  #ifdef HAVE_FCNTL_H
  #include <fcntl.h>
  #endif
  #ifdef HAVE_STDLIB_H
  #include <stdlib.h>
  #endif
  #ifdef HAVE_STRING_H
  #include <string.h>
  #endif
  #ifdef HAVE_UNISTD_H
  #include <unistd.h>
  #endif
  
  #include "archive.h"
  #include "archive_private.h"
  #include "archive_string.h"
  
  #ifndef O_BINARY
  #define O_BINARY 0
  #endif
  #ifndef O_CLOEXEC
  #define O_CLOEXEC	0
  #endif
  
  struct write_file_data {
  	int		fd;
  	struct archive_mstring filename;
  };
  
  static int	file_close(struct archive *, void *);
  static int	file_open(struct archive *, void *);
  static ssize_t	file_write(struct archive *, void *, const void *buff, size_t);
  static int	open_filename(struct archive *, int, const void *);
  
  int
  archive_write_open_file(struct archive *a, const char *filename)
  {
  	return (archive_write_open_filename(a, filename));
  }
  
  int
  archive_write_open_filename(struct archive *a, const char *filename)
  {
  
  	if (filename == NULL || filename[0] == '\0')
  		return (archive_write_open_fd(a, 1));
  
  	return (open_filename(a, 1, filename));
  }
  
  int
  archive_write_open_filename_w(struct archive *a, const wchar_t *filename)
  {
  
  	if (filename == NULL || filename[0] == L'\0')
  		return (archive_write_open_fd(a, 1));
  
  	return (open_filename(a, 0, filename));
  }
  
  static int
  open_filename(struct archive *a, int mbs_fn, const void *filename)
  {
  	struct write_file_data *mine;
  	int r;
  
  	mine = (struct write_file_data *)calloc(1, sizeof(*mine));
  	if (mine == NULL) {
  		archive_set_error(a, ENOMEM, "No memory");
  		return (ARCHIVE_FATAL);
  	}
  	if (mbs_fn)
  		r = archive_mstring_copy_mbs(&mine->filename, filename);
  	else
  		r = archive_mstring_copy_wcs(&mine->filename, filename);
  	if (r < 0) {
  		if (errno == ENOMEM) {
  			archive_set_error(a, ENOMEM, "No memory");
  			return (ARCHIVE_FATAL);
  		}
  		if (mbs_fn)
  			archive_set_error(a, ARCHIVE_ERRNO_MISC,
  			    "Can't convert '%s' to WCS",
  			    (const char *)filename);
  		else
  			archive_set_error(a, ARCHIVE_ERRNO_MISC,
  			    "Can't convert '%S' to MBS",
  			    (const wchar_t *)filename);
  		return (ARCHIVE_FAILED);
  	}
  	mine->fd = -1;
  	return (archive_write_open(a, mine,
  		file_open, file_write, file_close));
  }
  
  static int
  file_open(struct archive *a, void *client_data)
  {
  	int flags;
  	struct write_file_data *mine;
  	struct stat st;
  #if defined(_WIN32) && !defined(__CYGWIN__)
  	wchar_t *fullpath;
  #endif
  	const wchar_t *wcs;
  	const char *mbs;
  
  	mine = (struct write_file_data *)client_data;
  	flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_CLOEXEC;
  
  	/*
  	 * Open the file.
  	 */
  	mbs = NULL; wcs = NULL;
  #if defined(_WIN32) && !defined(__CYGWIN__)
  	if (archive_mstring_get_wcs(a, &mine->filename, &wcs) != 0) {
  		if (errno == ENOMEM)
  			archive_set_error(a, errno, "No memory");
  		else {
  			archive_mstring_get_mbs(a, &mine->filename, &mbs);
  			archive_set_error(a, errno,
  			    "Can't convert '%s' to WCS", mbs);
  		}
  		return (ARCHIVE_FATAL);
  	}
  	fullpath = __la_win_permissive_name_w(wcs);
  	if (fullpath != NULL) {
  		mine->fd = _wopen(fullpath, flags, 0666);
  		free(fullpath);
  	} else
  		mine->fd = _wopen(wcs, flags, 0666);
  #else
  	if (archive_mstring_get_mbs(a, &mine->filename, &mbs) != 0) {
  		if (errno == ENOMEM)
  			archive_set_error(a, errno, "No memory");
  		else {
  			archive_mstring_get_wcs(a, &mine->filename, &wcs);
  			archive_set_error(a, errno,
  			    "Can't convert '%S' to MBS", wcs);
  		}
  		return (ARCHIVE_FATAL);
  	}
  	mine->fd = open(mbs, flags, 0666);
  	__archive_ensure_cloexec_flag(mine->fd);
  #endif
  	if (mine->fd < 0) {
  		if (mbs != NULL)
  			archive_set_error(a, errno, "Failed to open '%s'", mbs);
  		else
  			archive_set_error(a, errno, "Failed to open '%S'", wcs);
  		return (ARCHIVE_FATAL);
  	}
  
  	if (fstat(mine->fd, &st) != 0) {
  		if (mbs != NULL)
  			archive_set_error(a, errno, "Couldn't stat '%s'", mbs);
  		else
  			archive_set_error(a, errno, "Couldn't stat '%S'", wcs);
  		return (ARCHIVE_FATAL);
  	}
  
  	/*
  	 * Set up default last block handling.
  	 */
  	if (archive_write_get_bytes_in_last_block(a) < 0) {
  		if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode) ||
  		    S_ISFIFO(st.st_mode))
  			/* Pad last block when writing to device or FIFO. */
  			archive_write_set_bytes_in_last_block(a, 0);
  		else
  			/* Don't pad last block otherwise. */
  			archive_write_set_bytes_in_last_block(a, 1);
  	}
  
  	/*
  	 * If the output file is a regular file, don't add it to
  	 * itself.  If it's a device file, it's okay to add the device
  	 * entry to the output archive.
  	 */
  	if (S_ISREG(st.st_mode))
  		archive_write_set_skip_file(a, st.st_dev, st.st_ino);
  
  	return (ARCHIVE_OK);
  }
  
  static ssize_t
  file_write(struct archive *a, void *client_data, const void *buff,
      size_t length)
  {
  	struct write_file_data	*mine;
  	ssize_t	bytesWritten;
  
  	mine = (struct write_file_data *)client_data;
  	for (;;) {
  		bytesWritten = write(mine->fd, buff, length);
  		if (bytesWritten <= 0) {
  			if (errno == EINTR)
  				continue;
  			archive_set_error(a, errno, "Write error");
  			return (-1);
  		}
  		return (bytesWritten);
  	}
  }
  
  static int
  file_close(struct archive *a, void *client_data)
  {
  	struct write_file_data	*mine = (struct write_file_data *)client_data;
  
  	(void)a; /* UNUSED */
  
  	if (mine->fd >= 0)
  		close(mine->fd);
  
  	archive_mstring_clean(&mine->filename);
  	free(mine);
  	return (ARCHIVE_OK);
  }
  