Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Mini ar implementation for busybox |
| 4 | * |
| 5 | * Copyright (C) 2000 by Glenn McGrath |
Glenn L McGrath | 4f1b012 | 2000-12-15 06:50:09 +0000 | [diff] [blame] | 6 | * Written by Glenn McGrath <bug1@optushome.com.au> 1 June 2000 |
Glenn L McGrath | 06aeb6c | 2000-08-25 03:50:10 +0000 | [diff] [blame] | 7 | * |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 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 | * |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 24 | * There is no signle 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 |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 27 | */ |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 28 | #include <sys/types.h> |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 29 | #include <fcntl.h> |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 30 | #include <fnmatch.h> |
Glenn L McGrath | ef0eab5 | 2001-10-25 14:49:48 +0000 | [diff] [blame] | 31 | #include <stdio.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 32 | #include <stdlib.h> |
Glenn L McGrath | eb1c940 | 2001-06-20 07:48:00 +0000 | [diff] [blame] | 33 | #include <string.h> |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 34 | #include <time.h> |
| 35 | #include <utime.h> |
| 36 | #include <unistd.h> |
Eric Andersen | ed3ef50 | 2001-01-27 08:24:39 +0000 | [diff] [blame] | 37 | #include <getopt.h> |
Glenn L McGrath | ef0eab5 | 2001-10-25 14:49:48 +0000 | [diff] [blame] | 38 | #include "unarchive.h" |
Eric Andersen | 3570a34 | 2000-09-25 21:45:58 +0000 | [diff] [blame] | 39 | #include "busybox.h" |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 40 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 41 | static void header_verbose_list_ar(const file_header_t *file_header) |
| 42 | { |
| 43 | const char *mode = mode_string(file_header->mode); |
| 44 | char *mtime; |
| 45 | |
| 46 | mtime = ctime(&file_header->mtime); |
| 47 | mtime[16] = ' '; |
| 48 | memmove(&mtime[17], &mtime[20], 4); |
| 49 | mtime[21] = '\0'; |
| 50 | 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); |
| 51 | } |
| 52 | |
| 53 | #if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO |
| 54 | /* This is simpler than data_extract_all */ |
| 55 | static void data_extract_regular_file(archive_handle_t *archive_handle) |
| 56 | { |
| 57 | file_header_t *file_header; |
| 58 | int dst_fd; |
| 59 | |
| 60 | file_header = archive_handle->file_header; |
| 61 | dst_fd = xopen(file_header->name, O_WRONLY | O_CREAT); |
| 62 | copy_file_chunk_fd(archive_handle->src_fd, dst_fd, file_header->size); |
| 63 | close(dst_fd); |
| 64 | |
| 65 | chmod(file_header->name, file_header->mode); |
| 66 | chown(file_header->name, file_header->uid, file_header->gid); |
| 67 | |
| 68 | if (archive_handle->flags & ARCHIVE_PRESERVE_DATE) { |
| 69 | struct utimbuf t; |
| 70 | t.actime = t.modtime = file_header->mtime; |
| 71 | utime(file_header->name, &t); |
| 72 | } |
| 73 | |
| 74 | return; |
| 75 | } |
| 76 | #endif |
| 77 | |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 78 | extern int ar_main(int argc, char **argv) |
| 79 | { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 80 | archive_handle_t *archive_handle; |
Glenn L McGrath | eb1c940 | 2001-06-20 07:48:00 +0000 | [diff] [blame] | 81 | int opt; |
Glenn L McGrath | 4f1b012 | 2000-12-15 06:50:09 +0000 | [diff] [blame] | 82 | |
Glenn L McGrath | a47a3ea | 2002-09-26 16:01:21 +0000 | [diff] [blame] | 83 | #ifndef CONFIG_DPKG_DEB |
| 84 | char magic[8]; |
| 85 | #endif |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 86 | #if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO |
| 87 | archive_handle = init_handle(); |
| 88 | #else |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 89 | archive_handle = xcalloc(1, sizeof(archive_handle_t)); |
| 90 | archive_handle->filter = filter_accept_all; |
| 91 | archive_handle->action_data = data_skip; |
| 92 | archive_handle->action_header = header_skip; |
| 93 | archive_handle->file_header =xmalloc(sizeof(file_header_t)); |
| 94 | #endif |
| 95 | |
| 96 | while ((opt = getopt(argc, argv, "covtpxX")) != -1) { |
Glenn L McGrath | 06aeb6c | 2000-08-25 03:50:10 +0000 | [diff] [blame] | 97 | switch (opt) { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 98 | case 'p': /* print */ |
| 99 | archive_handle->action_data = data_extract_to_stdout; |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 100 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 101 | case 't': /* list contents */ |
| 102 | archive_handle->action_header = header_list; |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 103 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 104 | case 'X': |
| 105 | archive_handle->action_header = header_verbose_list_ar; |
| 106 | case 'x': /* extract */ |
| 107 | #if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO |
| 108 | archive_handle->action_data = data_extract_all; |
| 109 | #else |
| 110 | archive_handle->action_data = data_extract_regular_file; |
| 111 | #endif |
Glenn L McGrath | 437bf72 | 2000-09-09 13:38:26 +0000 | [diff] [blame] | 112 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 113 | /* Modifiers */ |
| 114 | case 'o': /* preserve original dates */ |
| 115 | archive_handle->flags |= ARCHIVE_PRESERVE_DATE; |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 116 | break; |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 117 | case 'v': /* verbose */ |
| 118 | archive_handle->action_header = header_verbose_list_ar; |
Glenn L McGrath | e2b345a | 2000-09-09 14:50:04 +0000 | [diff] [blame] | 119 | break; |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 120 | default: |
Eric Andersen | 67991cf | 2001-02-14 21:23:06 +0000 | [diff] [blame] | 121 | show_usage(); |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 122 | } |
| 123 | } |
Glenn L McGrath | 06aeb6c | 2000-08-25 03:50:10 +0000 | [diff] [blame] | 124 | |
Matt Kraai | d995493 | 2000-09-22 03:36:27 +0000 | [diff] [blame] | 125 | /* check the src filename was specified */ |
Glenn L McGrath | 4949faf | 2001-04-11 16:23:35 +0000 | [diff] [blame] | 126 | if (optind == argc) { |
Eric Andersen | 67991cf | 2001-02-14 21:23:06 +0000 | [diff] [blame] | 127 | show_usage(); |
Glenn L McGrath | 4949faf | 2001-04-11 16:23:35 +0000 | [diff] [blame] | 128 | } |
| 129 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 130 | archive_handle->src_fd = xopen(argv[optind++], O_RDONLY); |
Matt Kraai | d995493 | 2000-09-22 03:36:27 +0000 | [diff] [blame] | 131 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 132 | /* TODO: This is the same as in tar, seperate function ? */ |
Glenn L McGrath | eb1c940 | 2001-06-20 07:48:00 +0000 | [diff] [blame] | 133 | while (optind < argc) { |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 134 | archive_handle->filter = filter_accept_list; |
| 135 | archive_handle->accept = add_to_list(archive_handle->accept, argv[optind]); |
Glenn L McGrath | eb1c940 | 2001-06-20 07:48:00 +0000 | [diff] [blame] | 136 | optind++; |
Glenn L McGrath | 4f1b012 | 2000-12-15 06:50:09 +0000 | [diff] [blame] | 137 | } |
Glenn L McGrath | 4949faf | 2001-04-11 16:23:35 +0000 | [diff] [blame] | 138 | |
Glenn L McGrath | 7ca04f3 | 2002-09-25 02:47:48 +0000 | [diff] [blame] | 139 | #if defined CONFIG_DPKG_DEB |
| 140 | unpack_ar_archive(archive_handle); |
| 141 | #else |
| 142 | xread_all(archive_handle->src_fd, magic, 7); |
| 143 | if (strncmp(magic, "!<arch>", 7) != 0) { |
| 144 | error_msg_and_die("Invalid ar magic"); |
| 145 | } |
| 146 | archive_handle->offset += 7; |
| 147 | |
| 148 | while (get_header_ar(archive_handle) == EXIT_SUCCESS); |
| 149 | #endif |
| 150 | |
Matt Kraai | 3e856ce | 2000-12-01 02:55:13 +0000 | [diff] [blame] | 151 | return EXIT_SUCCESS; |
Eric Andersen | 86ab8a3 | 2000-06-02 03:21:42 +0000 | [diff] [blame] | 152 | } |