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/* vi: set sw=4 ts=4: */
/*
* dpkg-deb packs, unpacks and provides information about Debian archives.
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "unarchive.h"
#include "busybox.h"
#define DPKG_DEB_OPT_CONTENTS 1
#define DPKG_DEB_OPT_CONTROL 2
#define DPKG_DEB_OPT_FIELD 4
#define DPKG_DEB_OPT_EXTRACT 8
#define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
int dpkg_deb_main(int argc, char **argv)
{
archive_handle_t *ar_archive;
archive_handle_t *tar_archive;
llist_t *control_tar_llist = NULL;
unsigned long opt;
char *extract_dir = NULL;
short argcount = 1;
/* Setup the tar archive handle */
tar_archive = init_handle();
/* Setup an ar archive handle that refers to the gzip sub archive */
ar_archive = init_handle();
ar_archive->sub_archive = tar_archive;
ar_archive->filter = filter_accept_list_reassign;
#ifdef CONFIG_FEATURE_DEB_TAR_GZ
ar_archive->accept = llist_add_to(NULL, "data.tar.gz");
control_tar_llist = llist_add_to(NULL, "control.tar.gz");
#endif
#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
ar_archive->accept = llist_add_to(ar_archive->accept, "data.tar.bz2");
control_tar_llist = llist_add_to(control_tar_llist, "control.tar.bz2");
#endif
bb_opt_complementally = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
opt = bb_getopt_ulflags(argc, argv, "cefXx");
if (opt & DPKG_DEB_OPT_CONTENTS) {
tar_archive->action_header = header_verbose_list;
}
if (opt & DPKG_DEB_OPT_CONTROL) {
ar_archive->accept = control_tar_llist;
tar_archive->action_data = data_extract_all;
if (optind + 1 == argc) {
extract_dir = "./DEBIAN";
} else {
argcount++;
}
}
if (opt & DPKG_DEB_OPT_FIELD) {
/* Print the entire control file
* it should accept a second argument which specifies a
* specific field to print */
ar_archive->accept = control_tar_llist;
tar_archive->accept = llist_add_to(NULL, "./control");
tar_archive->filter = filter_accept_list;
tar_archive->action_data = data_extract_to_stdout;
}
if (opt & DPKG_DEB_OPT_EXTRACT) {
tar_archive->action_header = header_list;
}
if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
tar_archive->action_data = data_extract_all;
argcount = 2;
}
if ((optind + argcount) != argc) {
bb_show_usage();
}
tar_archive->src_fd = ar_archive->src_fd = bb_xopen(argv[optind++], O_RDONLY);
/* Workout where to extract the files */
/* 2nd argument is a dir name */
if (argv[optind]) {
extract_dir = argv[optind];
}
if (extract_dir) {
mkdir(extract_dir, 0777);
chdir(extract_dir); /* error check? */
}
unpack_ar_archive(ar_archive);
/* Cleanup */
close (ar_archive->src_fd);
return(EXIT_SUCCESS);
}
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