1 /* Copyright (c) 2008, XenSource Inc.
2 * All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above copyright
9 * notice, this list of conditions and the following disclaimer in the
10 * documentation and/or other materials provided with the distribution.
11 * * Neither the name of XenSource Inc. nor the names of its contributors
12 * may be used to endorse or promote products derived from this software
13 * without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
19 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
23 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
24 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 #include <errno.h>
28 #include <fcntl.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <unistd.h>
32
33 #include "libvhd.h"
34
35 int
vhd_util_repair(int argc,char ** argv)36 vhd_util_repair(int argc, char **argv)
37 {
38 char *name;
39 int err, c;
40 off_t eof;
41 vhd_context_t vhd;
42
43 name = NULL;
44
45 if (!argc || !argv)
46 goto usage;
47
48 optind = 0;
49 while ((c = getopt(argc, argv, "n:h")) != -1) {
50 switch (c) {
51 case 'n':
52 name = optarg;
53 break;
54 case 'h':
55 default:
56 goto usage;
57 }
58 }
59
60 if (!name || optind != argc)
61 goto usage;
62
63 err = vhd_open(&vhd, name, VHD_OPEN_RDWR);
64 if (err) {
65 printf("error opening %s: %d\n", name, err);
66 return err;
67 }
68
69 err = vhd_end_of_data(&vhd, &eof);
70 if (err) {
71 printf("error finding end of data: %d\n", err);
72 goto done;
73 }
74
75 err = vhd_write_footer_at(&vhd, &vhd.footer, eof);
76
77 done:
78 vhd_close(&vhd);
79 return err;
80
81 usage:
82 printf("options: <-n name> [-h help]\n");
83 return -EINVAL;
84 }
85