1 /* vi: set sw=4 ts=4: */
3 * dpkg-deb packs, unpacks and provides information about Debian archives.
5 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
12 #include "unarchive.h"
15 #define DPKG_DEB_OPT_CONTENTS 1
16 #define DPKG_DEB_OPT_CONTROL 2
17 #define DPKG_DEB_OPT_FIELD 4
18 #define DPKG_DEB_OPT_EXTRACT 8
19 #define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
21 int dpkg_deb_main(int argc, char **argv)
23 archive_handle_t *ar_archive;
24 archive_handle_t *tar_archive;
25 llist_t *control_tar_llist = NULL;
27 char *extract_dir = NULL;
30 /* Setup the tar archive handle */
31 tar_archive = init_handle();
33 /* Setup an ar archive handle that refers to the gzip sub archive */
34 ar_archive = init_handle();
35 ar_archive->sub_archive = tar_archive;
36 ar_archive->filter = filter_accept_list_reassign;
38 #ifdef CONFIG_FEATURE_DEB_TAR_GZ
39 llist_add_to(&(ar_archive->accept), "data.tar.gz");
40 llist_add_to(&control_tar_llist, "control.tar.gz");
43 #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
44 llist_add_to(&(ar_archive->accept), "data.tar.bz2");
45 llist_add_to(&control_tar_llist, "control.tar.bz2");
48 bb_opt_complementally = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
49 opt = bb_getopt_ulflags(argc, argv, "cefXx");
51 if (opt & DPKG_DEB_OPT_CONTENTS) {
52 tar_archive->action_header = header_verbose_list;
54 if (opt & DPKG_DEB_OPT_CONTROL) {
55 ar_archive->accept = control_tar_llist;
56 tar_archive->action_data = data_extract_all;
57 if (optind + 1 == argc) {
58 extract_dir = "./DEBIAN";
63 if (opt & DPKG_DEB_OPT_FIELD) {
64 /* Print the entire control file
65 * it should accept a second argument which specifies a
66 * specific field to print */
67 ar_archive->accept = control_tar_llist;
68 llist_add_to(&(tar_archive->accept), "./control");
69 tar_archive->filter = filter_accept_list;
70 tar_archive->action_data = data_extract_to_stdout;
72 if (opt & DPKG_DEB_OPT_EXTRACT) {
73 tar_archive->action_header = header_list;
75 if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
76 tar_archive->action_data = data_extract_all;
80 if ((optind + argcount) != argc) {
84 tar_archive->src_fd = ar_archive->src_fd = bb_xopen(argv[optind++], O_RDONLY);
86 /* Workout where to extract the files */
87 /* 2nd argument is a dir name */
89 extract_dir = argv[optind];
92 mkdir(extract_dir, 0777);
93 chdir(extract_dir); /* error check? */
95 unpack_ar_archive(ar_archive);
98 close (ar_archive->src_fd);
100 return(EXIT_SUCCESS);