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    Contents of /trunk/mkinitrd-magellan/busybox/archival/dpkg_deb.c

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    Revision 532 - (show annotations) (download)
    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 }