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

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    Revision 1123 - (hide annotations) (download)
    Wed Aug 18 21:56:57 2010 UTC (13 years, 9 months ago) by niro
    File MIME type: text/plain
    File size: 2955 byte(s) 
    -updated to busybox-1.17.1
    1 niro 532 /* 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 niro 816 #include "libbb.h"
    8 niro 532 #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 niro 816 int dpkg_deb_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    17 niro 532 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 niro 816 const char *extract_dir;
    24     int need_args;
    25 niro 532
    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 niro 984 ar_archive->dpkg__sub_archive = tar_archive;
    32 niro 532 ar_archive->filter = filter_accept_list_reassign;
    33    
    34 niro 816 #if ENABLE_FEATURE_SEAMLESS_GZ
    35 niro 1123 llist_add_to(&ar_archive->accept, (char*)"data.tar.gz");
    36 niro 816 llist_add_to(&control_tar_llist, (char*)"control.tar.gz");
    37 niro 532 #endif
    38 niro 816 #if ENABLE_FEATURE_SEAMLESS_BZ2
    39 niro 1123 llist_add_to(&ar_archive->accept, (char*)"data.tar.bz2");
    40 niro 816 llist_add_to(&control_tar_llist, (char*)"control.tar.bz2");
    41 niro 532 #endif
    42 niro 1123 #if ENABLE_FEATURE_SEAMLESS_LZMA
    43     llist_add_to(&ar_archive->accept, (char*)"data.tar.lzma");
    44     llist_add_to(&control_tar_llist, (char*)"control.tar.lzma");
    45     #endif
    46 niro 532
    47 niro 816 opt_complementary = "c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
    48     opt = getopt32(argv, "cefXx");
    49     argv += optind;
    50     argc -= optind;
    51 niro 532
    52     if (opt & DPKG_DEB_OPT_CONTENTS) {
    53     tar_archive->action_header = header_verbose_list;
    54     }
    55 niro 816 extract_dir = NULL;
    56     need_args = 1;
    57 niro 532 if (opt & DPKG_DEB_OPT_CONTROL) {
    58     ar_archive->accept = control_tar_llist;
    59     tar_archive->action_data = data_extract_all;
    60 niro 816 if (1 == argc) {
    61 niro 532 extract_dir = "./DEBIAN";
    62     } else {
    63 niro 816 need_args++;
    64 niro 532 }
    65     }
    66     if (opt & DPKG_DEB_OPT_FIELD) {
    67     /* Print the entire control file
    68     * it should accept a second argument which specifies a
    69     * specific field to print */
    70     ar_archive->accept = control_tar_llist;
    71 niro 816 llist_add_to(&(tar_archive->accept), (char*)"./control");
    72 niro 532 tar_archive->filter = filter_accept_list;
    73     tar_archive->action_data = data_extract_to_stdout;
    74     }
    75     if (opt & DPKG_DEB_OPT_EXTRACT) {
    76     tar_archive->action_header = header_list;
    77     }
    78     if (opt & (DPKG_DEB_OPT_EXTRACT_VERBOSE | DPKG_DEB_OPT_EXTRACT)) {
    79     tar_archive->action_data = data_extract_all;
    80 niro 816 need_args = 2;
    81 niro 532 }
    82    
    83 niro 816 if (need_args != argc) {
    84 niro 532 bb_show_usage();
    85     }
    86    
    87 niro 816 tar_archive->src_fd = ar_archive->src_fd = xopen(argv[0], O_RDONLY);
    88 niro 532
    89 niro 816 /* Work out where to extract the files */
    90 niro 532 /* 2nd argument is a dir name */
    91 niro 816 if (argv[1]) {
    92     extract_dir = argv[1];
    93 niro 532 }
    94     if (extract_dir) {
    95     mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
    96     xchdir(extract_dir);
    97     }
    98 niro 816
    99     /* Do it */
    100 niro 532 unpack_ar_archive(ar_archive);
    101    
    102     /* Cleanup */
    103 niro 816 if (ENABLE_FEATURE_CLEAN_UP)
    104     close(ar_archive->src_fd);
    105 niro 532
    106     return EXIT_SUCCESS;
    107     }