+/* libguestfs - the guestfsd daemon
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../src/guestfs_protocol.h"
+#include "daemon.h"
+#include "actions.h"
+
+int
+do_dd (const char *src, const char *dest)
+{
+ int src_is_dev, dest_is_dev;
+ char *if_arg, *of_arg;
+ char *err;
+ int r;
+
+ src_is_dev = STRPREFIX (src, "/dev/");
+
+ if (src_is_dev)
+ r = asprintf (&if_arg, "if=%s", src);
+ else
+ r = asprintf (&if_arg, "if=%s%s", sysroot, src);
+ if (r == -1) {
+ reply_with_perror ("asprintf");
+ return -1;
+ }
+
+ dest_is_dev = STRPREFIX (dest, "/dev/");
+
+ if (dest_is_dev)
+ r = asprintf (&of_arg, "of=%s", dest);
+ else
+ r = asprintf (&of_arg, "of=%s%s", sysroot, dest);
+ if (r == -1) {
+ reply_with_perror ("asprintf");
+ free (if_arg);
+ return -1;
+ }
+
+ r = command (NULL, &err, "dd", "bs=1024K", if_arg, of_arg, NULL);
+ free (if_arg);
+ free (of_arg);
+
+ if (r == -1) {
+ reply_with_error ("dd: %s: %s: %s", src, dest, err);
+ free (err);
+ return -1;
+ }
+ free (err);
+
+ return 0;
+}