1 /* vi: set sw=4 ts=4: */
3 * Mini cpio implementation for busybox
5 * Copyright (C) 2001 by Glenn McGrath
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
11 * Only supports new ASCII and CRC formats
15 #include "unarchive.h"
17 #define CPIO_OPT_EXTRACT 0x01
18 #define CPIO_OPT_TEST 0x02
19 #define CPIO_OPT_UNCONDITIONAL 0x04
20 #define CPIO_OPT_VERBOSE 0x08
21 #define CPIO_OPT_FILE 0x10
22 #define CPIO_OPT_CREATE_LEADING_DIR 0x20
23 #define CPIO_OPT_PRESERVE_MTIME 0x40
25 int cpio_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
26 int cpio_main(int argc, char **argv)
28 archive_handle_t *archive_handle;
29 char *cpio_filename = NULL;
33 archive_handle = init_handle();
34 archive_handle->src_fd = STDIN_FILENO;
35 archive_handle->seek = seek_by_read;
36 archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
38 opt = getopt32(argv, "ituvF:dm", &cpio_filename);
40 /* One of either extract or test options must be given */
41 if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
45 if (opt & CPIO_OPT_TEST) {
46 /* if both extract and test options are given, ignore extract option */
47 if (opt & CPIO_OPT_EXTRACT) {
48 opt &= ~CPIO_OPT_EXTRACT;
50 archive_handle->action_header = header_list;
52 if (opt & CPIO_OPT_EXTRACT) {
53 archive_handle->action_data = data_extract_all;
55 if (opt & CPIO_OPT_UNCONDITIONAL) {
56 archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
57 archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
59 if (opt & CPIO_OPT_VERBOSE) {
60 if (archive_handle->action_header == header_list) {
61 archive_handle->action_header = header_verbose_list;
63 archive_handle->action_header = header_list;
66 if (cpio_filename) { /* CPIO_OPT_FILE */
67 archive_handle->src_fd = xopen(cpio_filename, O_RDONLY);
68 archive_handle->seek = seek_by_jump;
70 if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
71 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
74 while (optind < argc) {
75 archive_handle->filter = filter_accept_list;
76 llist_add_to(&(archive_handle->accept), argv[optind]);
80 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);