1 /* $NetBSD: ckckp.c,v 1.6 2008/04/28 20:23:06 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2006 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Konrad E. Schroder <perseant@hhhh.org>.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <err.h>
33 #include <fcntl.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <sys/param.h>
37 #include <sys/mount.h>
38 #include <ufs/ufs/dinode.h>
39 #include <ufs/lfs/lfs.h>
40
main(int argc,char ** argv)41 int main(int argc, char **argv)
42 {
43 int fd, e, sno;
44 char cmd[BUFSIZ], s[BUFSIZ];
45 FILE *pp;
46 int dowait = 1;
47
48 if (argc < 5)
49 errx(1, "usage: %s <fs-root> <raw-dev> <save-filename> "
50 "<work-filename>\n", argv[0]);
51
52 fd = open(argv[1], 0, 0);
53 if (fd < 0)
54 err(1, argv[1]);
55
56 /* Give the writer a head start */
57 sleep(5);
58
59 /* Loop forever calling LFCNWRAP{STOP,GO} */
60 sno = 0;
61 while(1) {
62 printf("Waiting until fs wraps\n");
63 fcntl(fd, LFCNWRAPSTOP, &dowait);
64
65 /*
66 * When the fcntl exits, the wrap is about to occur (but
67 * is waiting for the signal to go). Call our mass-check
68 * script, and if all is well, continue. The output
69 * of the script should end with a line that begins with a
70 * numeric code: zero for okay, nonzero for a failure.
71 */
72 printf("Verifying all checkpoints from s/n %d\n", sno);
73 sprintf(cmd, "./check-all %s %s %s %d", argv[2], argv[3],
74 argv[4], sno);
75 pp = popen(cmd, "r");
76 s[0] = '\0';
77 while(fgets(s, BUFSIZ, pp) != NULL)
78 printf(" %s", s);
79 if (s[0] == '\0') {
80 printf("No checkpoints found or script exited\n");
81 return 0;
82 }
83 sscanf(s, "%d %d", &e, &sno);
84 if (e) {
85 printf("Script exited with error code %d\n", e);
86 return 1;
87 }
88 pclose(pp);
89
90 ++sno;
91 printf("Waiting until fs continues\n");
92 fcntl(fd, LFCNWRAPGO, &dowait);
93 }
94
95 return 0;
96 }
97