Contents of /trunk/mkinitrd-magellan/busybox/archival/dpkg_deb.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
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Sat Sep 1 22:45:15 2007 UTC (16 years, 8 months ago) by niro
File MIME type: text/plain
File size: 2627 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
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 "busybox.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) |
17 | { |
18 | archive_handle_t *ar_archive; |
19 | archive_handle_t *tar_archive; |
20 | llist_t *control_tar_llist = NULL; |
21 | unsigned opt; |
22 | char *extract_dir = NULL; |
23 | short argcount = 1; |
24 | |
25 | /* Setup the tar archive handle */ |
26 | tar_archive = init_handle(); |
27 | |
28 | /* Setup an ar archive handle that refers to the gzip sub archive */ |
29 | ar_archive = init_handle(); |
30 | ar_archive->sub_archive = tar_archive; |
31 | ar_archive->filter = filter_accept_list_reassign; |
32 | |
33 | #ifdef CONFIG_FEATURE_DEB_TAR_GZ |
34 | llist_add_to(&(ar_archive->accept), "data.tar.gz"); |
35 | llist_add_to(&control_tar_llist, "control.tar.gz"); |
36 | #endif |
37 | |
38 | #ifdef CONFIG_FEATURE_DEB_TAR_BZ2 |
39 | llist_add_to(&(ar_archive->accept), "data.tar.bz2"); |
40 | llist_add_to(&control_tar_llist, "control.tar.bz2"); |
41 | #endif |
42 | |
43 | opt_complementary = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX"; |
44 | opt = getopt32(argc, argv, "cefXx"); |
45 | |
46 | if (opt & DPKG_DEB_OPT_CONTENTS) { |
47 | tar_archive->action_header = header_verbose_list; |
48 | } |
49 | if (opt & DPKG_DEB_OPT_CONTROL) { |
50 | ar_archive->accept = control_tar_llist; |
51 | tar_archive->action_data = data_extract_all; |
52 | if (optind + 1 == argc) { |
53 | extract_dir = "./DEBIAN"; |
54 | } else { |
55 | argcount++; |
56 | } |
57 | } |
58 | if (opt & DPKG_DEB_OPT_FIELD) { |
59 | /* Print the entire control file |
60 | * it should accept a second argument which specifies a |
61 | * specific field to print */ |
62 | ar_archive->accept = control_tar_llist; |
63 | llist_add_to(&(tar_archive->accept), "./control"); |
64 | tar_archive->filter = filter_accept_list; |
65 | tar_archive->action_data = data_extract_to_stdout; |
66 | } |
67 | if (opt & DPKG_DEB_OPT_EXTRACT) { |
68 | tar_archive->action_header = header_list; |
69 | } |
70 | if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) { |
71 | tar_archive->action_data = data_extract_all; |
72 | argcount = 2; |
73 | } |
74 | |
75 | if ((optind + argcount) != argc) { |
76 | bb_show_usage(); |
77 | } |
78 | |
79 | tar_archive->src_fd = ar_archive->src_fd = xopen(argv[optind++], O_RDONLY); |
80 | |
81 | /* Workout where to extract the files */ |
82 | /* 2nd argument is a dir name */ |
83 | if (argv[optind]) { |
84 | extract_dir = argv[optind]; |
85 | } |
86 | if (extract_dir) { |
87 | mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */ |
88 | xchdir(extract_dir); |
89 | } |
90 | unpack_ar_archive(ar_archive); |
91 | |
92 | /* Cleanup */ |
93 | close(ar_archive->src_fd); |
94 | |
95 | return EXIT_SUCCESS; |
96 | } |