CMake/Utilities/cmlibarchive/libarchive/archive_write_open_filename.c

249 lines
6.5 KiB
C

/*-
* 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_string.h"
#ifndef O_BINARY
#define O_BINARY 0
#endif
struct write_file_data {
int fd;
char mbs_filename;
union {
char m[1];
wchar_t w[1];
} filename; /* Must be last! */
};
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);
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)
{
struct write_file_data *mine;
if (filename == NULL || filename[0] == '\0')
return (archive_write_open_fd(a, 1));
mine = (struct write_file_data *)malloc(sizeof(*mine) + strlen(filename));
if (mine == NULL) {
archive_set_error(a, ENOMEM, "No memory");
return (ARCHIVE_FATAL);
}
strcpy(mine->filename.m, filename);
mine->mbs_filename = 1;
mine->fd = -1;
return (archive_write_open(a, mine,
file_open, file_write, file_close));
}
int
archive_write_open_filename_w(struct archive *a, const wchar_t *filename)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
struct write_file_data *mine;
if (filename == NULL || filename[0] == L'\0')
return (archive_write_open_fd(a, 1));
mine = malloc(sizeof(*mine) + wcslen(filename) * sizeof(wchar_t));
if (mine == NULL) {
archive_set_error(a, ENOMEM, "No memory");
return (ARCHIVE_FATAL);
}
wcscpy(mine->filename.w, filename);
mine->mbs_filename = 0;
mine->fd = -1;
return (archive_write_open(a, mine,
file_open, file_write, file_close));
#else
/*
* POSIX system does not support a wchar_t interface for
* open() system call, so we have to translate a wchar_t
* filename to multi-byte one and use it.
*/
struct archive_string fn;
int r;
if (filename == NULL || filename[0] == L'\0')
return (archive_write_open_fd(a, 1));
archive_string_init(&fn);
if (archive_string_append_from_wcs(&fn, filename,
wcslen(filename)) != 0) {
archive_set_error(a, EINVAL,
"Failed to convert a wide-character filename to"
" a multi-byte filename");
archive_string_free(&fn);
return (ARCHIVE_FATAL);
}
r = archive_write_open_filename(a, fn.s);
archive_string_free(&fn);
return (r);
#endif
}
static int
file_open(struct archive *a, void *client_data)
{
int flags;
struct write_file_data *mine;
struct stat st;
mine = (struct write_file_data *)client_data;
flags = O_WRONLY | O_CREAT | O_TRUNC | O_BINARY;
/*
* Open the file.
*/
if (mine->mbs_filename) {
mine->fd = open(mine->filename.m, flags, 0666);
if (mine->fd < 0) {
archive_set_error(a, errno, "Failed to open '%s'",
mine->filename.m);
return (ARCHIVE_FATAL);
}
if (fstat(mine->fd, &st) != 0) {
archive_set_error(a, errno, "Couldn't stat '%s'",
mine->filename.m);
return (ARCHIVE_FATAL);
}
} else {
#if defined(_WIN32) && !defined(__CYGWIN__)
mine->fd = _wopen(mine->filename.w, flags, 0666);
if (mine->fd < 0 && errno == ENOENT) {
wchar_t *fullpath;
fullpath = __la_win_permissive_name_w(mine->filename.w);
if (fullpath != NULL) {
mine->fd = _wopen(fullpath, flags, 0666);
free(fullpath);
}
}
if (mine->fd < 0) {
archive_set_error(a, errno, "Failed to open '%S'",
mine->filename.w);
return (ARCHIVE_FATAL);
}
if (fstat(mine->fd, &st) != 0) {
archive_set_error(a, errno, "Couldn't stat '%S'",
mine->filename.w);
return (ARCHIVE_FATAL);
}
#else
archive_set_error(a, ARCHIVE_ERRNO_MISC,
"Unexpedted operation in archive_write_open_filename");
return (ARCHIVE_FATAL);
#endif
}
/*
* 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);
free(mine);
return (ARCHIVE_OK);
}