1 files changed, 110 insertions, 0 deletions

diff --git a/busybox/archival/ar.c b/busybox/archival/ar.c
new file mode 100644
index 000000000..44c5db035
--- /dev/null
+++ b/busybox/archival/ar.c
@@ -0,0 +1,110 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini ar implementation for busybox
+ *
+ * Copyright (C) 2000 by Glenn McGrath
+ * 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
+ * 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 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 <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <utime.h>
+#include <unistd.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);
+}
+
+#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
+
+extern int ar_main(int argc, char **argv)
+{
+        archive_handle_t *archive_handle;
+        unsigned long opt;
+        char magic[8];
+
+        archive_handle = init_handle();
+
+        bb_opt_complementaly = "p~tx:t~px:x~pt";
+        opt = bb_getopt_ulflags(argc, argv, "ptxovc");
+
+        if ((opt & 0x80000000UL) || (optind == argc)) {
+                bb_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("Archive creation not supported.  Install binutils 'ar'.");
+        }
+
+        archive_handle->src_fd = bb_xopen(argv[optind++], O_RDONLY);
+
+        while (optind < argc) {
+                archive_handle->filter = filter_accept_list;
+                archive_handle->accept = llist_add_to(archive_handle->accept, argv[optind++]);
+        }
+
+        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);
+
+        return EXIT_SUCCESS;
+}