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
30 #include "unarchive.h"
33 #define CPIO_OPT_EXTRACT 0x01
34 #define CPIO_OPT_TEST 0x02
35 #define CPIO_OPT_UNCONDITIONAL 0x04
36 #define CPIO_OPT_VERBOSE 0x08
37 #define CPIO_OPT_FILE 0x10
38 #define CPIO_OPT_CREATE_LEADING_DIR 0x20
39 #define CPIO_OPT_PRESERVE_MTIME 0x40
41 int cpio_main(int argc, char **argv)
43 archive_handle_t *archive_handle;
44 char *cpio_filename = NULL;
48 archive_handle = init_handle();
49 archive_handle->src_fd = STDIN_FILENO;
50 archive_handle->seek = seek_by_char;
51 archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
53 opt = bb_getopt_ulflags(argc, argv, "ituvF:dm", &cpio_filename);
55 /* One of either extract or test options must be given */
56 if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
60 if (opt & CPIO_OPT_TEST) {
61 /* if both extract and test options are given, ignore extract option */
62 if (opt & CPIO_OPT_EXTRACT) {
63 opt &= ~CPIO_OPT_EXTRACT;
65 archive_handle->action_header = header_list;
67 if (opt & CPIO_OPT_EXTRACT) {
68 archive_handle->action_data = data_extract_all;
70 if (opt & CPIO_OPT_UNCONDITIONAL) {
71 archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
72 archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
74 if (opt & CPIO_OPT_VERBOSE) {
75 if (archive_handle->action_header == header_list) {
76 archive_handle->action_header = header_verbose_list;
78 archive_handle->action_header = header_list;
81 if (cpio_filename) { /* CPIO_OPT_FILE */
82 archive_handle->src_fd = bb_xopen(cpio_filename, O_RDONLY);
83 archive_handle->seek = seek_by_jump;
85 if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
86 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
89 while (optind < argc) {
90 archive_handle->filter = filter_accept_list;
91 archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind]);
95 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);