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
18 #include "unarchive.h"
21 #define CPIO_OPT_EXTRACT 0x01
22 #define CPIO_OPT_TEST 0x02
23 #define CPIO_OPT_UNCONDITIONAL 0x04
24 #define CPIO_OPT_VERBOSE 0x08
25 #define CPIO_OPT_FILE 0x10
26 #define CPIO_OPT_CREATE_LEADING_DIR 0x20
27 #define CPIO_OPT_PRESERVE_MTIME 0x40
29 int cpio_main(int argc, char **argv)
31 archive_handle_t *archive_handle;
32 char *cpio_filename = NULL;
36 archive_handle = init_handle();
37 archive_handle->src_fd = STDIN_FILENO;
38 archive_handle->seek = seek_by_read;
39 archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
41 opt = getopt32(argc, argv, "ituvF:dm", &cpio_filename);
43 /* One of either extract or test options must be given */
44 if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
48 if (opt & CPIO_OPT_TEST) {
49 /* if both extract and test options are given, ignore extract option */
50 if (opt & CPIO_OPT_EXTRACT) {
51 opt &= ~CPIO_OPT_EXTRACT;
53 archive_handle->action_header = header_list;
55 if (opt & CPIO_OPT_EXTRACT) {
56 archive_handle->action_data = data_extract_all;
58 if (opt & CPIO_OPT_UNCONDITIONAL) {
59 archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
60 archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
62 if (opt & CPIO_OPT_VERBOSE) {
63 if (archive_handle->action_header == header_list) {
64 archive_handle->action_header = header_verbose_list;
66 archive_handle->action_header = header_list;
69 if (cpio_filename) { /* CPIO_OPT_FILE */
70 archive_handle->src_fd = xopen(cpio_filename, O_RDONLY);
71 archive_handle->seek = seek_by_jump;
73 if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
74 archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
77 while (optind < argc) {
78 archive_handle->filter = filter_accept_list;
79 llist_add_to(&(archive_handle->accept), argv[optind]);
83 while (get_header_cpio(archive_handle) == EXIT_SUCCESS);