Contents of /tags/mkinitrd-6_2_1/busybox/archival/dpkg_deb.c
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Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
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File size: 2798 byte(s)
Sun May 30 12:16:23 2010 UTC (14 years, 4 months ago) by niro
File MIME type: text/plain
File size: 2798 byte(s)
tagged 'mkinitrd-6_2_1'
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 tarball for details. |
6 | */ |
7 | #include "libbb.h" |
8 | #include "unarchive.h" |
9 | |
10 | #define DPKG_DEB_OPT_CONTENTS 1 |
11 | #define DPKG_DEB_OPT_CONTROL 2 |
12 | #define DPKG_DEB_OPT_FIELD 4 |
13 | #define DPKG_DEB_OPT_EXTRACT 8 |
14 | #define DPKG_DEB_OPT_EXTRACT_VERBOSE 16 |
15 | |
16 | int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
17 | int dpkg_deb_main(int argc, char **argv) |
18 | { |
19 | archive_handle_t *ar_archive; |
20 | archive_handle_t *tar_archive; |
21 | llist_t *control_tar_llist = NULL; |
22 | unsigned opt; |
23 | const char *extract_dir; |
24 | int need_args; |
25 | |
26 | /* Setup the tar archive handle */ |
27 | tar_archive = init_handle(); |
28 | |
29 | /* Setup an ar archive handle that refers to the gzip sub archive */ |
30 | ar_archive = init_handle(); |
31 | ar_archive->dpkg__sub_archive = tar_archive; |
32 | ar_archive->filter = filter_accept_list_reassign; |
33 | |
34 | #if ENABLE_FEATURE_SEAMLESS_GZ |
35 | llist_add_to(&(ar_archive->accept), (char*)"data.tar.gz"); |
36 | llist_add_to(&control_tar_llist, (char*)"control.tar.gz"); |
37 | #endif |
38 | |
39 | #if ENABLE_FEATURE_SEAMLESS_BZ2 |
40 | llist_add_to(&(ar_archive->accept), (char*)"data.tar.bz2"); |
41 | llist_add_to(&control_tar_llist, (char*)"control.tar.bz2"); |
42 | #endif |
43 | |
44 | opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX"; |
45 | opt = getopt32(argv, "cefXx"); |
46 | argv += optind; |
47 | argc -= optind; |
48 | |
49 | if (opt & DPKG_DEB_OPT_CONTENTS) { |
50 | tar_archive->action_header = header_verbose_list; |
51 | } |
52 | extract_dir = NULL; |
53 | need_args = 1; |
54 | if (opt & DPKG_DEB_OPT_CONTROL) { |
55 | ar_archive->accept = control_tar_llist; |
56 | tar_archive->action_data = data_extract_all; |
57 | if (1 == argc) { |
58 | extract_dir = "./DEBIAN"; |
59 | } else { |
60 | need_args++; |
61 | } |
62 | } |
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), (char*)"./control"); |
69 | tar_archive->filter = filter_accept_list; |
70 | tar_archive->action_data = data_extract_to_stdout; |
71 | } |
72 | if (opt & DPKG_DEB_OPT_EXTRACT) { |
73 | tar_archive->action_header = header_list; |
74 | } |
75 | if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { |
76 | tar_archive->action_data = data_extract_all; |
77 | need_args = 2; |
78 | } |
79 | |
80 | if (need_args != argc) { |
81 | bb_show_usage(); |
82 | } |
83 | |
84 | tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY); |
85 | |
86 | /* Work out where to extract the files */ |
87 | /* 2nd argument is a dir name */ |
88 | if (argv[1]) { |
89 | extract_dir = argv[1]; |
90 | } |
91 | if (extract_dir) { |
92 | mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */ |
93 | xchdir(extract_dir); |
94 | } |
95 | |
96 | /* Do it */ |
97 | unpack_ar_archive(ar_archive); |
98 | |
99 | /* Cleanup */ |
100 | if (ENABLE_FEATURE_CLEAN_UP) |
101 | close(ar_archive->src_fd); |
102 | |
103 | return EXIT_SUCCESS; |
104 | } |