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_fill(int argc,char ** argv)36 vhd_util_fill(int argc, char **argv)
37 {
38 int err, c;
39 char *buf, *name;
40 vhd_context_t vhd;
41 uint64_t i, sec, secs;
42
43 buf = NULL;
44 name = NULL;
45
46 if (!argc || !argv)
47 goto usage;
48
49 optind = 0;
50 while ((c = getopt(argc, argv, "n:h")) != -1) {
51 switch (c) {
52 case 'n':
53 name = optarg;
54 break;
55 case 'h':
56 default:
57 goto usage;
58 }
59 }
60
61 if (!name || optind != argc)
62 goto usage;
63
64 err = vhd_open(&vhd, name, VHD_OPEN_RDWR);
65 if (err) {
66 printf("error opening %s: %d\n", name, err);
67 return err;
68 }
69
70 err = vhd_get_bat(&vhd);
71 if (err)
72 goto done;
73
74 err = posix_memalign((void **)&buf, 4096, vhd.header.block_size);
75 if (err) {
76 err = -err;
77 goto done;
78 }
79
80 sec = 0;
81 secs = vhd.header.block_size >> VHD_SECTOR_SHIFT;
82
83 for (i = 0; i < vhd.header.max_bat_size; i++) {
84 err = vhd_io_read(&vhd, buf, sec, secs);
85 if (err)
86 goto done;
87
88 err = vhd_io_write(&vhd, buf, sec, secs);
89 if (err)
90 goto done;
91
92 sec += secs;
93 }
94
95 err = 0;
96
97 done:
98 free(buf);
99 vhd_close(&vhd);
100 return err;
101
102 usage:
103 printf("options: <-n name> [-h help]\n");
104 return -EINVAL;
105 }
106