1 files changed, 87 insertions, 0 deletions
diff --git a/archival/ar.c b/archival/ar.c
new file mode 100644
index 0000000..dbff677
--- /dev/null
+++ b/archival/ar.c
@@ -0,0 +1,87 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini ar implementation for busybox
+ *
+ * Copyright (C) 2000 by Glenn McGrath
+ *
+ * Based in part on BusyBox tar, Debian dpkg-deb and GNU ar.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ * 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 "libbb.h"
+#include "unarchive.h"
+
+static void FAST_FUNC 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
+#define AR_OPT_INSERT		0x40
+
+int ar_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int ar_main(int argc, char **argv)
+{
+	static const char msg_unsupported_err[] ALIGN1 =
+		"archive %s is not supported";
+
+	archive_handle_t *archive_handle;
+	unsigned opt;
+
+	archive_handle = init_handle();
+
+	/* Prepend '-' to the first argument if required */
+	opt_complementary = "--:p:t:x:-1:p--tx:t--px:x--pt";
+	opt = getopt32(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->ah_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");
+	}
+	if (opt & AR_OPT_INSERT) {
+		bb_error_msg_and_die(msg_unsupported_err, "insertion");
+	}
+
+	archive_handle->src_fd = xopen(argv[optind++], O_RDONLY);
+
+	while (optind < argc) {
+		archive_handle->filter = filter_accept_list;
+		llist_add_to(&(archive_handle->accept), argv[optind++]);
+	}
+
+	unpack_ar_archive(archive_handle);
+
+	return EXIT_SUCCESS;
+}