source: MondoRescue/branches/stable/mindi-busybox/archival/ar.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: 3.3 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Mini ar implementation for busybox
4 *
5 * Copyright (C) 2000 by Glenn McGrath
6 * Written by Glenn McGrath <bug1@iinet.net.au> 1 June 2000
7 *
8 * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 * There is no single standard to adhere to so ar may not portable
25 * between different systems
26 * http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html
27 */
28
29#include <fcntl.h>
30#include <stdio.h>
31#include <stdlib.h>
32#include <string.h>
33#include <time.h>
34#include <utime.h>
35#include <unistd.h>
36
37#include "unarchive.h"
38#include "busybox.h"
39
40static void header_verbose_list_ar(const file_header_t *file_header)
41{
42    const char *mode = bb_mode_string(file_header->mode);
43    char *mtime;
44
45    mtime = ctime(&file_header->mtime);
46    mtime[16] = ' ';
47    memmove(&mtime[17], &mtime[20], 4);
48    mtime[21] = '\0';
49    printf("%s %d/%d%7d %s %s\n", &mode[1], file_header->uid, file_header->gid, (int) file_header->size, &mtime[4], file_header->name);
50}
51
52#define AR_CTX_PRINT        0x01
53#define AR_CTX_LIST     0x02
54#define AR_CTX_EXTRACT      0x04
55#define AR_OPT_PRESERVE_DATE    0x08
56#define AR_OPT_VERBOSE      0x10
57#define AR_OPT_CREATE       0x20
58#define AR_OPT_INSERT       0x40
59
60int ar_main(int argc, char **argv)
61{
62    archive_handle_t *archive_handle;
63    unsigned long opt;
64    static const char msg_unsupported_err[] =
65            "Archive %s not supported.  Install binutils 'ar'.";
66    char magic[8];
67
68    archive_handle = init_handle();
69
70    /* Prepend '-' to the first argument if required */
71    bb_opt_complementally = "--:p:t:x:-1:?:p--tx:t--px:x--pt";
72    opt = bb_getopt_ulflags(argc, argv, "ptxovcr");
73
74    if (opt & AR_CTX_PRINT) {
75        archive_handle->action_data = data_extract_to_stdout;
76    }
77    if (opt & AR_CTX_LIST) {
78        archive_handle->action_header = header_list;
79    }
80    if (opt & AR_CTX_EXTRACT) {
81        archive_handle->action_data = data_extract_all;
82    }
83    if (opt & AR_OPT_PRESERVE_DATE) {
84        archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
85    }
86    if (opt & AR_OPT_VERBOSE) {
87        archive_handle->action_header = header_verbose_list_ar;
88    }
89    if (opt & AR_OPT_CREATE) {
90        bb_error_msg_and_die(msg_unsupported_err, "creation");
91    }
92    if (opt & AR_OPT_INSERT) {
93        bb_error_msg_and_die(msg_unsupported_err, "insertion");
94    }
95
96    archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY);
97
98    while (optind < argc) {
99        archive_handle->filter = filter_accept_list;
100        llist_add_to(&(archive_handle->accept), argv[optind++]);
101    }
102
103    archive_xread_all(archive_handle, magic, 7);
104    if (strncmp(magic, "!<arch>", 7) != 0) {
105        bb_error_msg_and_die("Invalid ar magic");
106    }
107    archive_handle->offset += 7;
108
109    while (get_header_ar(archive_handle) == EXIT_SUCCESS);
110
111    return EXIT_SUCCESS;
112}
Note: See TracBrowser for help on using the repository browser.