/* vi: set sw=4 ts=4: */
/*
- * Mini ar implementation for busybox
+ * 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.
+ * Written by Glenn McGrath <bug1@iinet.net.au> 1 June 2000
*
- * 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.
+ * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar.
*
- * 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
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
- * There is no signle standard to adhere to so ar may not portable
+ * There is no single 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"
+#include "unarchive.h"
static void header_verbose_list_ar(const file_header_t *file_header)
{
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);
+ 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);
- bb_copyfd_eof(archive_handle->src_fd, dst_fd, file_header->size);
- 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);
- }
+#define AR_CTX_PRINT 0x01
+#define AR_CTX_LIST 0x02
+#define AR_CTX_EXTRACT 0x04
+#define AR_OPT_PRESERVE_DATE 0x08
+#define AR_OPT_VERBOSE 0x10
+#define AR_OPT_CREATE 0x20
+#define AR_OPT_INSERT 0x40
- return;
-}
-#endif
-
-extern int ar_main(int argc, char **argv)
+int ar_main(int argc, char **argv);
+int ar_main(int argc, char **argv)
{
archive_handle_t *archive_handle;
- int opt;
-
-#if !defined CONFIG_DPKG_DEB && !defined CONFIG_DPKG
+ unsigned opt;
+ static const char msg_unsupported_err[] =
+ "Archive %s not supported. Install binutils 'ar'.";
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();
- }
+ /* Prepend '-' to the first argument if required */
+ opt_complementary = "--:p:t:x:-1:?:p--tx:t--px:x--pt";
+ opt = getopt32(argc, argv, "ptxovcr");
+
+ if (opt & AR_CTX_PRINT) {
+ archive_handle->action_data = data_extract_to_stdout;
+ }
+ if (opt & AR_CTX_LIST) {
+ archive_handle->action_header = header_list;
+ }
+ if (opt & AR_CTX_EXTRACT) {
+ archive_handle->action_data = data_extract_all;
+ }
+ if (opt & AR_OPT_PRESERVE_DATE) {
+ archive_handle->flags |= ARCHIVE_PRESERVE_DATE;
+ }
+ if (opt & AR_OPT_VERBOSE) {
+ archive_handle->action_header = header_verbose_list_ar;
+ }
+ if (opt & AR_OPT_CREATE) {
+ bb_error_msg_and_die(msg_unsupported_err, "creation");
}
-
- /* check the src filename was specified */
- if (optind == argc) {
- bb_show_usage();
+ if (opt & AR_OPT_INSERT) {
+ bb_error_msg_and_die(msg_unsupported_err, "insertion");
}
- archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY);
+ archive_handle->src_fd = 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++;
+ llist_add_to(&(archive_handle->accept), argv[optind++]);
}
-#if defined CONFIG_DPKG_DEB || defined CONFIG_DPKG
- unpack_ar_archive(archive_handle);
-#else
- archive_xread_all(archive_handle, magic, 7);
+ xread(archive_handle->src_fd, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
- bb_error_msg_and_die("Invalid ar magic");
+ bb_error_msg_and_die("invalid ar magic");
}
archive_handle->offset += 7;
- while (get_header_ar(archive_handle) == EXIT_SUCCESS);
-#endif
+ while (get_header_ar(archive_handle) == EXIT_SUCCESS) /* repeat */;
return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff