1 /* vi: set sw=4 ts=4: */
3 * Mini cpio implementation for busybox
5 * Copyright (C) 2001 by Glenn McGrath
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 * Only supports new ASCII and CRC formats
31 #include "unarchive.h"
34 extern int cpio_main(int argc, char **argv)
36 FILE *src_stream = stdin;
37 char **extract_names = NULL;
38 int extract_function = 0;
39 int num_of_entries = 0;
43 while ((opt = getopt(argc, argv, "idmuvtF:")) != -1) {
46 extract_function |= extract_all_to_fs;
48 case 'd': // create _leading_ directories
49 extract_function |= extract_create_leading_dirs;
50 oldmask = umask(077); /* Make make_directory act like GNU cpio */
52 case 'm': // preserve modification time
53 extract_function |= extract_preserve_date;
55 case 'v': // verbosly list files
56 extract_function |= extract_verbose_list;
58 case 'u': // unconditional
59 extract_function |= extract_unconditional;
61 case 't': // list files
62 extract_function |= extract_list;
65 src_stream = xfopen(optarg, "r");
72 if ((extract_function & extract_all_to_fs) && (extract_function & extract_list)) {
73 extract_function ^= extract_all_to_fs; /* If specify t, don't extract*/
76 if ((extract_function & extract_all_to_fs) && (extract_function & extract_verbose_list)) {
77 /* The meaning of v changes on extract */
78 extract_function ^= extract_verbose_list;
79 extract_function |= extract_list;
82 while (optind < argc) {
83 extract_names = xrealloc(extract_names, sizeof(char *) * (num_of_entries + 2));
84 extract_names[num_of_entries] = xstrdup(argv[optind]);
86 extract_names[num_of_entries] = NULL;
90 unarchive(src_stream, stdout, &get_header_cpio, extract_function, "./", extract_names, NULL);
92 umask(oldmask); /* Restore umask if we changed it */