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/*-
* 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 */
close(mine->fd);
archive_mstring_clean(&mine->filename);
free(mine);
return (ARCHIVE_OK);
}
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