| 1 | /* vi: set sw=4 ts=4: */
|
|---|
| 2 | /*
|
|---|
| 3 | * dpkg-deb packs, unpacks and provides information about Debian archives.
|
|---|
| 4 | *
|
|---|
| 5 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
|
|---|
| 6 | */
|
|---|
| 7 |
|
|---|
| 8 | //usage:#define dpkg_deb_trivial_usage
|
|---|
| 9 | //usage: "[-cefxX] FILE [argument"
|
|---|
| 10 | //usage:#define dpkg_deb_full_usage "\n\n"
|
|---|
| 11 | //usage: "Perform actions on Debian packages (.debs)\n"
|
|---|
| 12 | //usage: "\n -c List contents of filesystem tree"
|
|---|
| 13 | //usage: "\n -e Extract control files to [argument] directory"
|
|---|
| 14 | //usage: "\n -f Display control field name starting with [argument]"
|
|---|
| 15 | //usage: "\n -x Extract packages filesystem tree to directory"
|
|---|
| 16 | //usage: "\n -X Verbose extract"
|
|---|
| 17 | //usage:
|
|---|
| 18 | //usage:#define dpkg_deb_example_usage
|
|---|
| 19 | //usage: "$ dpkg-deb -X ./busybox_0.48-1_i386.deb /tmp\n"
|
|---|
| 20 |
|
|---|
| 21 | #include "libbb.h"
|
|---|
| 22 | #include "bb_archive.h"
|
|---|
| 23 |
|
|---|
| 24 | #define DPKG_DEB_OPT_CONTENTS 1
|
|---|
| 25 | #define DPKG_DEB_OPT_CONTROL 2
|
|---|
| 26 | #define DPKG_DEB_OPT_FIELD 4
|
|---|
| 27 | #define DPKG_DEB_OPT_EXTRACT 8
|
|---|
| 28 | #define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
|
|---|
| 29 |
|
|---|
| 30 | int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|---|
| 31 | int dpkg_deb_main(int argc, char **argv)
|
|---|
| 32 | {
|
|---|
| 33 | archive_handle_t *ar_archive;
|
|---|
| 34 | archive_handle_t *tar_archive;
|
|---|
| 35 | llist_t *control_tar_llist = NULL;
|
|---|
| 36 | unsigned opt;
|
|---|
| 37 | const char *extract_dir;
|
|---|
| 38 | int need_args;
|
|---|
| 39 |
|
|---|
| 40 | /* Setup the tar archive handle */
|
|---|
| 41 | tar_archive = init_handle();
|
|---|
| 42 |
|
|---|
| 43 | /* Setup an ar archive handle that refers to the gzip sub archive */
|
|---|
| 44 | ar_archive = init_handle();
|
|---|
| 45 | ar_archive->dpkg__sub_archive = tar_archive;
|
|---|
| 46 | ar_archive->filter = filter_accept_list_reassign;
|
|---|
| 47 |
|
|---|
| 48 | #if ENABLE_FEATURE_SEAMLESS_GZ
|
|---|
| 49 | llist_add_to(&ar_archive->accept, (char*)"data.tar.gz");
|
|---|
| 50 | llist_add_to(&control_tar_llist, (char*)"control.tar.gz");
|
|---|
| 51 | #endif
|
|---|
| 52 | #if ENABLE_FEATURE_SEAMLESS_BZ2
|
|---|
| 53 | llist_add_to(&ar_archive->accept, (char*)"data.tar.bz2");
|
|---|
| 54 | llist_add_to(&control_tar_llist, (char*)"control.tar.bz2");
|
|---|
| 55 | #endif
|
|---|
| 56 | #if ENABLE_FEATURE_SEAMLESS_LZMA
|
|---|
| 57 | llist_add_to(&ar_archive->accept, (char*)"data.tar.lzma");
|
|---|
| 58 | llist_add_to(&control_tar_llist, (char*)"control.tar.lzma");
|
|---|
| 59 | #endif
|
|---|
| 60 |
|
|---|
| 61 | opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
|
|---|
| 62 | opt = getopt32(argv, "cefXx");
|
|---|
| 63 | argv += optind;
|
|---|
| 64 | argc -= optind;
|
|---|
| 65 |
|
|---|
| 66 | if (opt & DPKG_DEB_OPT_CONTENTS) {
|
|---|
| 67 | tar_archive->action_header = header_verbose_list;
|
|---|
| 68 | }
|
|---|
| 69 | extract_dir = NULL;
|
|---|
| 70 | need_args = 1;
|
|---|
| 71 | if (opt & DPKG_DEB_OPT_CONTROL) {
|
|---|
| 72 | ar_archive->accept = control_tar_llist;
|
|---|
| 73 | tar_archive->action_data = data_extract_all;
|
|---|
| 74 | if (1 == argc) {
|
|---|
| 75 | extract_dir = "./DEBIAN";
|
|---|
| 76 | } else {
|
|---|
| 77 | need_args++;
|
|---|
| 78 | }
|
|---|
| 79 | }
|
|---|
| 80 | if (opt & DPKG_DEB_OPT_FIELD) {
|
|---|
| 81 | /* Print the entire control file
|
|---|
| 82 | * it should accept a second argument which specifies a
|
|---|
| 83 | * specific field to print */
|
|---|
| 84 | ar_archive->accept = control_tar_llist;
|
|---|
| 85 | llist_add_to(&(tar_archive->accept), (char*)"./control");
|
|---|
| 86 | tar_archive->filter = filter_accept_list;
|
|---|
| 87 | tar_archive->action_data = data_extract_to_stdout;
|
|---|
| 88 | }
|
|---|
| 89 | if (opt & DPKG_DEB_OPT_EXTRACT) {
|
|---|
| 90 | tar_archive->action_header = header_list;
|
|---|
| 91 | }
|
|---|
| 92 | if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
|
|---|
| 93 | tar_archive->action_data = data_extract_all;
|
|---|
| 94 | need_args = 2;
|
|---|
| 95 | }
|
|---|
| 96 |
|
|---|
| 97 | if (need_args != argc) {
|
|---|
| 98 | bb_show_usage();
|
|---|
| 99 | }
|
|---|
| 100 |
|
|---|
| 101 | tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY);
|
|---|
| 102 |
|
|---|
| 103 | /* Work out where to extract the files */
|
|---|
| 104 | /* 2nd argument is a dir name */
|
|---|
| 105 | if (argv[1]) {
|
|---|
| 106 | extract_dir = argv[1];
|
|---|
| 107 | }
|
|---|
| 108 | if (extract_dir) {
|
|---|
| 109 | mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
|
|---|
| 110 | xchdir(extract_dir);
|
|---|
| 111 | }
|
|---|
| 112 |
|
|---|
| 113 | /* Do it */
|
|---|
| 114 | unpack_ar_archive(ar_archive);
|
|---|
| 115 |
|
|---|
| 116 | /* Cleanup */
|
|---|
| 117 | if (ENABLE_FEATURE_CLEAN_UP)
|
|---|
| 118 | close(ar_archive->src_fd);
|
|---|
| 119 |
|
|---|
| 120 | return EXIT_SUCCESS;
|
|---|
| 121 | }
|
|---|
