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 #define CPIO_OPT_EXTRACT 0x01
35 #define CPIO_OPT_TEST 0x02
36 #define CPIO_OPT_UNCONDITIONAL 0x04
37 #define CPIO_OPT_VERBOSE 0x08
38 #define CPIO_OPT_FILE 0x10
39 #define CPIO_OPT_CREATE_LEADING_DIR 0x20
40 #define CPIO_OPT_PRESERVE_MTIME 0x40
42 extern int cpio_main(int argc, char **argv)
44 archive_handle_t *archive_handle;
45 char *cpio_filename = NULL;
49 archive_handle = init_handle();
50 archive_handle->src_fd = STDIN_FILENO;
51 archive_handle->seek = seek_by_char;
52 archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
54 opt = bb_getopt_ulflags(argc, argv, "ituvF:dm", &cpio_filename);
56 /* One of either extract or test options must be given */
57 if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
61 if (opt & CPIO_OPT_TEST) {
62 /* if both extract and test option are given, ignore extract option */
63 if (opt & CPIO_OPT_EXTRACT) {
64 opt &= ~CPIO_OPT_EXTRACT;
66 archive_handle->action_header = header_list;
68 if (opt & CPIO_OPT_EXTRACT) {
69 archive_handle->action_data = data_extract_all;
71 if (opt & CPIO_OPT_UNCONDITIONAL) {
72 archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
73 archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
75 if (opt & CPIO_OPT_VERBOSE) {
76 if (archive_handle->action_header == header_list) {
77 archive_handle->action_header = header_verbose_list;
79 archive_handle->action_header = header_list;
82 if (cpio_filename) { /* CPIO_OPT_FILE */
83 archive_handle->src_fd = bb_xopen(cpio_filename, O_RDONLY);
84 archive_handle->seek = seek_by_jump;
86 if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
87 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
90 while (optind < argc) {
91 archive_handle->filter = filter_accept_list;
92 archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind]);
96 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);