source: MondoRescue/branches/stable/mindi-busybox/archival/dpkg_deb.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 2.7 KB
Line 
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 <fcntl.h>
8#include <stdlib.h>
9#include <string.h>
10#include <unistd.h>
11
12#include "unarchive.h"
13#include "busybox.h"
14
15#define DPKG_DEB_OPT_CONTENTS   1
16#define DPKG_DEB_OPT_CONTROL    2
17#define DPKG_DEB_OPT_FIELD  4
18#define DPKG_DEB_OPT_EXTRACT    8
19#define DPKG_DEB_OPT_EXTRACT_VERBOSE    16
20
21int dpkg_deb_main(int argc, char **argv)
22{
23    archive_handle_t *ar_archive;
24    archive_handle_t *tar_archive;
25    llist_t *control_tar_llist = NULL;
26    unsigned long opt;
27    char *extract_dir = NULL;
28    short argcount = 1;
29
30    /* Setup the tar archive handle */
31    tar_archive = init_handle();
32
33    /* Setup an ar archive handle that refers to the gzip sub archive */
34    ar_archive = init_handle();
35    ar_archive->sub_archive = tar_archive;
36    ar_archive->filter = filter_accept_list_reassign;
37
38#ifdef CONFIG_FEATURE_DEB_TAR_GZ
39    llist_add_to(&(ar_archive->accept), "data.tar.gz");
40    llist_add_to(&control_tar_llist, "control.tar.gz");
41#endif
42
43#ifdef CONFIG_FEATURE_DEB_TAR_BZ2
44    llist_add_to(&(ar_archive->accept), "data.tar.bz2");
45    llist_add_to(&control_tar_llist, "control.tar.bz2");
46#endif
47
48    bb_opt_complementally = "?c--efXx:e--cfXx:f--ceXx:X--cefx:x--cefX";
49    opt = bb_getopt_ulflags(argc, argv, "cefXx");
50
51    if (opt & DPKG_DEB_OPT_CONTENTS) {
52        tar_archive->action_header = header_verbose_list;
53    }
54    if (opt & DPKG_DEB_OPT_CONTROL) {
55        ar_archive->accept = control_tar_llist;
56        tar_archive->action_data = data_extract_all;
57        if (optind + 1 == argc) {
58            extract_dir = "./DEBIAN";
59        } else {
60            argcount++;
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), "./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        argcount = 2;
78    }
79
80    if ((optind + argcount) != argc) {
81        bb_show_usage();
82    }
83
84    tar_archive->src_fd = ar_archive->src_fd = bb_xopen(argv[optind++], O_RDONLY);
85
86    /* Workout where to extract the files */
87    /* 2nd argument is a dir name */
88    if (argv[optind]) {
89        extract_dir = argv[optind];
90    }
91    if (extract_dir) {
92        mkdir(extract_dir, 0777); /* bb_make_directory(extract_dir, 0777, 0) */
93        bb_xchdir(extract_dir);
94    }
95    unpack_ar_archive(ar_archive);
96
97    /* Cleanup */
98    close (ar_archive->src_fd);
99
100    return(EXIT_SUCCESS);
101}
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