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Diffstat (limited to 'i/pc104/initrd/conf/busybox/archival/cpio.c')
-rw-r--r--i/pc104/initrd/conf/busybox/archival/cpio.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/i/pc104/initrd/conf/busybox/archival/cpio.c b/i/pc104/initrd/conf/busybox/archival/cpio.c
new file mode 100644
index 0000000..0113867
--- /dev/null
+++ b/i/pc104/initrd/conf/busybox/archival/cpio.c
@@ -0,0 +1,87 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini cpio implementation for busybox
+ *
+ * Copyright (C) 2001 by Glenn McGrath
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ *
+ * Limitations:
+ * Doesn't check CRC's
+ * Only supports new ASCII and CRC formats
+ *
+ */
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "unarchive.h"
+#include "busybox.h"
+
+#define CPIO_OPT_EXTRACT 0x01
+#define CPIO_OPT_TEST 0x02
+#define CPIO_OPT_UNCONDITIONAL 0x04
+#define CPIO_OPT_VERBOSE 0x08
+#define CPIO_OPT_FILE 0x10
+#define CPIO_OPT_CREATE_LEADING_DIR 0x20
+#define CPIO_OPT_PRESERVE_MTIME 0x40
+
+int cpio_main(int argc, char **argv);
+int cpio_main(int argc, char **argv)
+{
+ archive_handle_t *archive_handle;
+ char *cpio_filename = NULL;
+ unsigned opt;
+
+ /* Initialise */
+ archive_handle = init_handle();
+ archive_handle->src_fd = STDIN_FILENO;
+ archive_handle->seek = seek_by_read;
+ archive_handle->flags = ARCHIVE_EXTRACT_NEWER | ARCHIVE_PRESERVE_DATE;
+
+ opt = getopt32(argc, argv, "ituvF:dm", &cpio_filename);
+
+ /* One of either extract or test options must be given */
+ if ((opt & (CPIO_OPT_TEST | CPIO_OPT_EXTRACT)) == 0) {
+ bb_show_usage();
+ }
+
+ if (opt & CPIO_OPT_TEST) {
+ /* if both extract and test options are given, ignore extract option */
+ if (opt & CPIO_OPT_EXTRACT) {
+ opt &= ~CPIO_OPT_EXTRACT;
+ }
+ archive_handle->action_header = header_list;
+ }
+ if (opt & CPIO_OPT_EXTRACT) {
+ archive_handle->action_data = data_extract_all;
+ }
+ if (opt & CPIO_OPT_UNCONDITIONAL) {
+ archive_handle->flags |= ARCHIVE_EXTRACT_UNCONDITIONAL;
+ archive_handle->flags &= ~ARCHIVE_EXTRACT_NEWER;
+ }
+ if (opt & CPIO_OPT_VERBOSE) {
+ if (archive_handle->action_header == header_list) {
+ archive_handle->action_header = header_verbose_list;
+ } else {
+ archive_handle->action_header = header_list;
+ }
+ }
+ if (cpio_filename) { /* CPIO_OPT_FILE */
+ archive_handle->src_fd = xopen(cpio_filename, O_RDONLY);
+ archive_handle->seek = seek_by_jump;
+ }
+ if (opt & CPIO_OPT_CREATE_LEADING_DIR) {
+ archive_handle->flags |= ARCHIVE_CREATE_LEADING_DIRS;
+ }
+
+ while (optind < argc) {
+ archive_handle->filter = filter_accept_list;
+ llist_add_to(&(archive_handle->accept), argv[optind]);
+ optind++;
+ }
+
+ while (get_header_cpio(archive_handle) == EXIT_SUCCESS);
+
+ return EXIT_SUCCESS;
+}