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/* 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 <string.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 ("%s: %s: %s", src, dest, err);
free (err);
return -1;
}
free (err);
return 0;
}
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