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/*
* 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 Library 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.
*/
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "unarchive.h"
#include "busybox.h"
extern int dpkg_deb_main(int argc, char **argv)
{
archive_handle_t *ar_archive;
archive_handle_t *tar_gz_archive;
int opt = 0;
#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
const llist_t *control_tar_gz_llist = add_to_list(NULL, "control.tar.gz");
#endif
#ifndef CONFIG_AR
char magic[7];
#endif
/* a .deb file is an ar archive that contain three files,
* data.tar.gz, control.tar.gz and debian
*/
/* Setup the tar archive handle */
tar_gz_archive = init_handle();
/* Setup an ar archive handle that refers to the gzip sub archive */
ar_archive = init_handle();
ar_archive->action_data_subarchive = get_header_tar_gz;
ar_archive->sub_archive = tar_gz_archive;
ar_archive->filter = filter_accept_list;
ar_archive->accept = add_to_list(NULL, "data.tar.gz");
#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
while ((opt = getopt(argc, argv, "cefXx")) != -1) {
#else
while ((opt = getopt(argc, argv, "x")) != -1) {
#endif
switch (opt) {
#ifndef CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY
case 'c':
tar_gz_archive->action_header = header_verbose_list;
break;
case 'e':
ar_archive->accept = control_tar_gz_llist;
tar_gz_archive->action_data = data_extract_all;
break;
case 'f':
/* Print the entire control file
* it should accept a second argument which specifies a
* specific field to print */
ar_archive->accept = control_tar_gz_llist;
tar_gz_archive->accept = add_to_list(NULL, "./control");;
tar_gz_archive->filter = filter_accept_list;
tar_gz_archive->action_data = data_extract_to_stdout;
break;
case 'X':
tar_gz_archive->action_header = header_list;
#endif
case 'x':
tar_gz_archive->action_data = data_extract_all;
break;
default:
show_usage();
}
}
if (optind + 2 < argc) {
show_usage();
}
tar_gz_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY);
/* Workout where to extract the files */
/* 2nd argument is a dir name */
mkdir(argv[optind], 0777);
chdir(argv[optind]);
#ifdef CONFIG_AR
unpack_ar_archive(ar_archive);
#else
xread_all(ar_archive->src_fd, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
error_msg_and_die("Invalid ar magic");
}
ar_archive->offset += 7;
while (get_header_ar(ar_archive) == EXIT_SUCCESS);
#endif
/* Cleanup */
close (ar_archive->src_fd);
return(EXIT_SUCCESS);
}
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