| [821] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * dpkg-deb packs, unpacks and provides information about Debian archives.
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| 4 | *
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| 5 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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| 6 | */
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| 7 | #include <fcntl.h>
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| 8 | #include <stdlib.h>
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| 9 | #include <string.h>
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| 10 | #include <unistd.h>
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| 11 |
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| 12 | #include "unarchive.h"
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| 13 | #include "busybox.h"
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| 14 |
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| 15 | #define DPKG_DEB_OPT_CONTENTS 1
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| 16 | #define DPKG_DEB_OPT_CONTROL 2
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| 17 | #define DPKG_DEB_OPT_FIELD 4
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| 18 | #define DPKG_DEB_OPT_EXTRACT 8
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| 19 | #define DPKG_DEB_OPT_EXTRACT_VERBOSE 16
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| 20 |
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| 21 | int dpkg_deb_main(int argc, char **argv)
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| 22 | {
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| 23 | archive_handle_t *ar_archive;
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| 24 | archive_handle_t *tar_archive;
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| 25 | llist_t *control_tar_llist = NULL;
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| 26 | unsigned long opt;
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| 27 | char *extract_dir = NULL;
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| 28 | short argcount = 1;
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| 29 |
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| 30 | /* Setup the tar archive handle */
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| 31 | tar_archive = init_handle();
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| 32 |
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| 33 | /* Setup an ar archive handle that refers to the gzip sub archive */
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| 34 | ar_archive = init_handle();
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| 35 | ar_archive->sub_archive = tar_archive;
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| 36 | ar_archive->filter = filter_accept_list_reassign;
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| 37 |
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| 38 | #ifdef CONFIG_FEATURE_DEB_TAR_GZ
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| 39 | llist_add_to(&(ar_archive->accept), "data.tar.gz");
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| 40 | llist_add_to(&control_tar_llist, "control.tar.gz");
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| 41 | #endif
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| 42 |
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| 43 | #ifdef CONFIG_FEATURE_DEB_TAR_BZ2
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| 44 | llist_add_to(&(ar_archive->accept), "data.tar.bz2");
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| 45 | llist_add_to(&control_tar_llist, "control.tar.bz2");
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| 46 | #endif
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| 47 |
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| 48 | bb_opt_complementally = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
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| 49 | opt = bb_getopt_ulflags(argc, argv, "cefXx");
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| 50 |
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| 51 | if (opt & DPKG_DEB_OPT_CONTENTS) {
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| 52 | tar_archive->action_header = header_verbose_list;
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| 53 | }
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| 54 | if (opt & DPKG_DEB_OPT_CONTROL) {
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| 55 | ar_archive->accept = control_tar_llist;
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| 56 | tar_archive->action_data = data_extract_all;
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| 57 | if (optind + 1 == argc) {
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| 58 | extract_dir = "./DEBIAN";
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| 59 | } else {
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| 60 | argcount++;
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| 61 | }
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| 62 | }
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| 63 | if (opt & DPKG_DEB_OPT_FIELD) {
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| 64 | /* Print the entire control file
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| 65 | * it should accept a second argument which specifies a
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| 66 | * specific field to print */
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| 67 | ar_archive->accept = control_tar_llist;
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| 68 | llist_add_to(&(tar_archive->accept), "./control");
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| 69 | tar_archive->filter = filter_accept_list;
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| 70 | tar_archive->action_data = data_extract_to_stdout;
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| 71 | }
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| 72 | if (opt & DPKG_DEB_OPT_EXTRACT) {
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| 73 | tar_archive->action_header = header_list;
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| 74 | }
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| 75 | if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
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| 76 | tar_archive->action_data = data_extract_all;
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| 77 | argcount = 2;
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| 78 | }
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| 79 |
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| 80 | if ((optind + argcount) != argc) {
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| 81 | bb_show_usage();
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| 82 | }
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| 83 |
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| 84 | tar_archive->src_fd = ar_archive->src_fd = bb_xopen(argv[optind++], O_RDONLY);
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| 85 |
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| 86 | /* Workout where to extract the files */
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| 87 | /* 2nd argument is a dir name */
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| 88 | if (argv[optind]) {
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| 89 | extract_dir = argv[optind];
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| 90 | }
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| 91 | if (extract_dir) {
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| 92 | mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
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| 93 | bb_xchdir(extract_dir);
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| 94 | }
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| 95 | unpack_ar_archive(ar_archive);
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| 96 |
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| 97 | /* Cleanup */
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| 98 | close (ar_archive->src_fd);
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| 99 |
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| 100 | return(EXIT_SUCCESS);
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| 101 | }
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