1 /* libguestfs - the guestfsd daemon
2 * Copyright (C) 2009 Red Hat Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "../src/guestfs_protocol.h"
30 do_dd (const char *src, const char *dest)
32 int src_is_dev, dest_is_dev;
33 char *if_arg, *of_arg;
37 src_is_dev = STRPREFIX (src, "/dev/");
40 r = asprintf (&if_arg, "if=%s", src);
42 r = asprintf (&if_arg, "if=%s%s", sysroot, src);
44 reply_with_perror ("asprintf");
48 dest_is_dev = STRPREFIX (dest, "/dev/");
51 r = asprintf (&of_arg, "of=%s", dest);
53 r = asprintf (&of_arg, "of=%s%s", sysroot, dest);
55 reply_with_perror ("asprintf");
60 r = command (NULL, &err, "dd", "bs=1024K", if_arg, of_arg, NULL);
65 reply_with_error ("dd: %s: %s: %s", src, dest, err);