regress/sys/fs/lfs/ckckp/ckckp.c

   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
  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 }