1/*	$NetBSD: ckckp.c,v 1.5 2006/07/21 00:29:23 perseant 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
41int 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