source: branches/stable/mindi-busybox/archival/cpio.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 2.9 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Mini cpio implementation for busybox
4 *
5 * Copyright (C) 2001 by Glenn McGrath
6 *
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.
11 *
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.
16 *
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
20 *
21 * Limitations:
22 *      Doesn't check CRC's
23 *      Only supports new ASCII and CRC formats
24 *
25 */
26#include <fcntl.h>
27#include <stdlib.h>
28#include <string.h>
29#include <unistd.h>
30#include "unarchive.h"
31#include "busybox.h"
32
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
40
41int cpio_main(int argc, char **argv)
42{
43    archive_handle_t *archive_handle;
44    char *cpio_filename = NULL;
45    unsigned long opt;
46
47    /* Initialise */
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;
52
53    opt = bb_getopt_ulflags(argc, argv, "ituvF:dm", &cpio_filename);
54
55    /* One of either extract or test options must be given */
56    if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
57        bb_show_usage();
58    }
59
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;
64        }
65        archive_handle->action_header = header_list;
66    }
67    if (opt & CPIO_OPT_EXTRACT) {
68        archive_handle->action_data = data_extract_all;
69    }
70    if (opt & CPIO_OPT_UNCONDITIONAL) {
71        archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
72        archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
73    }
74    if (opt & CPIO_OPT_VERBOSE) {
75        if (archive_handle->action_header == header_list) {
76            archive_handle->action_header = header_verbose_list;
77        } else {
78            archive_handle->action_header = header_list;
79        }
80    }
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;
84    }
85    if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
86        archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
87    }
88
89    while (optind < argc) {
90        archive_handle->filter = filter_accept_list;
91        llist_add_to(&(archive_handle->accept), argv[optind]);
92        optind++;
93    }
94
95    while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
96
97    return(EXIT_SUCCESS);
98}
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