diff options
Diffstat (limited to 'release/src/router/busybox/archival/ar.c')
-rw-r--r-- | release/src/router/busybox/archival/ar.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/release/src/router/busybox/archival/ar.c b/release/src/router/busybox/archival/ar.c new file mode 100644 index 00000000..57ec9271 --- /dev/null +++ b/release/src/router/busybox/archival/ar.c @@ -0,0 +1,144 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini ar implementation for busybox + * + * Copyright (C) 2000 by Glenn McGrath + * Written by Glenn McGrath <bug1@optushome.com.au> 1 June 2000 + * + * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * There is no signle standard to adhere to so ar may not portable + * between different systems + * http://www.unix-systems.org/single_unix_specification_v2/xcu/ar.html + */ +#include <sys/types.h> +#include <fcntl.h> +#include <fnmatch.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <utime.h> +#include <unistd.h> +#include <getopt.h> +#include "unarchive.h" +#include "busybox.h" + +static void header_verbose_list_ar(const file_header_t *file_header) +{ + const char *mode = bb_mode_string(file_header->mode); + char *mtime; + + mtime = ctime(&file_header->mtime); + mtime[16] = ' '; + memmove(&mtime[17], &mtime[20], 4); + mtime[21] = '\0'; + 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); +} + +#if !defined CONFIG_TAR && !defined CONFIG_DPKG_DEB && !defined CONFIG_CPIO +/* This is simpler than data_extract_all */ +static void data_extract_regular_file(archive_handle_t *archive_handle) +{ + file_header_t *file_header; + int dst_fd; + + file_header = archive_handle->file_header; + dst_fd = bb_xopen(file_header->name, O_WRONLY | O_CREAT); + archive_copy_file(archive_handle, dst_fd); + close(dst_fd); + + chmod(file_header->name, file_header->mode); + chown(file_header->name, file_header->uid, file_header->gid); + + if (archive_handle->flags & ARCHIVE_PRESERVE_DATE) { + struct utimbuf t; + t.actime = t.modtime = file_header->mtime; + utime(file_header->name, &t); + } + + return; +} +#endif + +extern int ar_main(int argc, char **argv) +{ + archive_handle_t *archive_handle; + int opt; + +#if !defined CONFIG_DPKG_DEB && !defined CONFIG_DPKG + char magic[8]; +#endif + archive_handle = init_handle(); + + while ((opt = getopt(argc, argv, "covtpxX")) != -1) { + switch (opt) { + case 'p': /* print */ + archive_handle->action_data = data_extract_to_stdout; + break; + case 't': /* list contents */ + archive_handle->action_header = header_list; + break; + case 'X': + archive_handle->action_header = header_verbose_list_ar; + case 'x': /* extract */ +#if defined CONFIG_TAR || defined CONFIG_DPKG_DEB || defined CONFIG_CPIO + archive_handle->action_data = data_extract_all; +#else + archive_handle->action_data = data_extract_regular_file; +#endif + break; + /* Modifiers */ + case 'o': /* preserve original dates */ + archive_handle->flags |= ARCHIVE_PRESERVE_DATE; + break; + case 'v': /* verbose */ + archive_handle->action_header = header_verbose_list_ar; + break; + default: + bb_show_usage(); + } + } + + /* check the src filename was specified */ + if (optind == argc) { + bb_show_usage(); + } + + archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY); + + /* TODO: This is the same as in tar, seperate function ? */ + while (optind < argc) { + archive_handle->filter = filter_accept_list; + archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind]); + optind++; + } + +#if defined CONFIG_DPKG_DEB || defined CONFIG_DPKG + unpack_ar_archive(archive_handle); +#else + archive_xread_all(archive_handle, magic, 7); + if (strncmp(magic, "!<arch>", 7) != 0) { + bb_error_msg_and_die("Invalid ar magic"); + } + archive_handle->offset += 7; + + while (get_header_ar(archive_handle) == EXIT_SUCCESS); +#endif + + return EXIT_SUCCESS; +} |