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/* vi: set sw=4 ts=4: */
/*
* Mini ar implementation for busybox
*
* Copyright (C) 2000 by Glenn McGrath
* Written by Glenn McGrath <bug1@optushome.com.au> 1 June 2000
*
* Based in part on BusyBox tar, Debian dpkg-deb and GNU ar.
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* There is no signle standard to adhere to so ar may not portable
* between different systems
* http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html
*/
#include <sys/types.h>
#include <fcntl.h>
#include <fnmatch.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <utime.h>
#include <unistd.h>
#include <getopt.h>
#include "unarchive.h"
#include "busybox.h"
static void header_verbose_list_ar(const file_header_t *file_header)
{
const char *mode = bb_mode_string(file_header->mode);
char *mtime;
mtime = ctime(&file_header->mtime);
mtime[16] = ' ';
memmove(&mtime[17], &mtime[20], 4);
mtime[21] = '\0';
printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, (int) file_header->size, &mtime[4], file_header->name);
}
#if !defined CONFIG_TAR && !defined CONFIG_DPKG_DEB && !defined CONFIG_CPIO
/* This is simpler than data_extract_all */
static void data_extract_regular_file(archive_handle_t *archive_handle)
{
file_header_t *file_header;
int dst_fd;
file_header = archive_handle->file_header;
dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT);
bb_copyfd_eof(archive_handle->src_fd, dst_fd, file_header->size);
close(dst_fd);
chmod(file_header->name, file_header->mode);
chown(file_header->name, file_header->uid, file_header->gid);
if (archive_handle->flags & ARCHIVE_PRESERVE_DATE) {
struct utimbuf t;
t.actime = t.modtime = file_header->mtime;
utime(file_header->name, &t);
}
return;
}
#endif
extern int ar_main(int argc, char **argv)
{
archive_handle_t *archive_handle;
int opt;
#if !defined CONFIG_DPKG_DEB && !defined CONFIG_DPKG
char magic[8];
#endif
archive_handle = init_handle();
while ((opt = getopt(argc, argv, "covtpxX")) != -1) {
switch (opt) {
case 'p': /* print */
archive_handle->action_data = data_extract_to_stdout;
break;
case 't': /* list contents */
archive_handle->action_header = header_list;
break;
case 'X':
archive_handle->action_header = header_verbose_list_ar;
case 'x': /* extract */
#if defined CONFIG_TAR || defined CONFIG_DPKG_DEB || defined CONFIG_CPIO
archive_handle->action_data = data_extract_all;
#else
archive_handle->action_data = data_extract_regular_file;
#endif
break;
/* Modifiers */
case 'o': /* preserve original dates */
archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
break;
case 'v': /* verbose */
archive_handle->action_header = header_verbose_list_ar;
break;
default:
bb_show_usage();
}
}
/* check the src filename was specified */
if (optind == argc) {
bb_show_usage();
}
archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY);
/* TODO: This is the same as in tar, seperate function ? */
while (optind < argc) {
archive_handle->filter = filter_accept_list;
archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind]);
optind++;
}
#if defined CONFIG_DPKG_DEB || defined CONFIG_DPKG
unpack_ar_archive(archive_handle);
#else
archive_xread_all(archive_handle, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
bb_error_msg_and_die("Invalid ar magic");
}
archive_handle->offset += 7;
while (get_header_ar(archive_handle) == EXIT_SUCCESS);
#endif
return EXIT_SUCCESS;
}
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