/* 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
- *
+ * Written by Glenn McGrath <bug1@iinet.net.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
* 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
+ * 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 <getopt.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 = mode_string(file_header->mode);
+ const char *mode = bb_mode_string(file_header->mode);
char *mtime;
mtime = ctime(&file_header->mtime);
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 = xopen(file_header->name, O_WRONLY | O_CREAT);
- copy_file_chunk_fd(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);
- }
-
- return;
-}
-#endif
+#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
extern int ar_main(int argc, char **argv)
{
archive_handle_t *archive_handle;
- int opt;
+ unsigned long opt;
+ char *msg_unsupported_err = "Archive %s not supported. Install binutils 'ar'.";
+ char magic[8];
-#if defined CONFIG_TAR | defined CONFIG_DPKG_DEB | defined CONFIG_CPIO
archive_handle = init_handle();
-#else
- char magic[8];
- archive_handle = xcalloc(1, sizeof(archive_handle_t));
- archive_handle->filter = filter_accept_all;
- archive_handle->action_data = data_skip;
- archive_handle->action_header = header_skip;
- archive_handle->file_header =xmalloc(sizeof(file_header_t));
-#endif
+ bb_opt_complementaly = "p~tx:t~px:x~pt";
+ opt = bb_getopt_ulflags(argc, argv, "ptxovcr");
+
+ if ((opt & BB_GETOPT_ERROR) || (opt == 0) || (optind == argc)) {
+ bb_show_usage();
+ }
- 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:
- show_usage();
- }
+ 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) {
- show_usage();
+ if (opt & AR_OPT_INSERT) {
+ bb_error_msg_and_die(msg_unsupported_err, "insertion");
}
- archive_handle->src_fd = xopen(argv[optind++], O_RDONLY);
+ 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 = add_to_list(archive_handle->accept, argv[optind]);
- optind++;
+ archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind++]);
}
-#if defined CONFIG_DPKG_DEB
- unpack_ar_archive(archive_handle);
-#else
- xread_all(archive_handle->src_fd, magic, 7);
+ archive_xread_all(archive_handle, magic, 7);
if (strncmp(magic, "!<arch>", 7) != 0) {
- 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
return EXIT_SUCCESS;
}