usr.bin/fsync/fsync.c

   1 /*-
   2  * Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/usr.bin/fsync/fsync.c,v 1.1.2.2 2000/07/25 07:48:25 ps Exp $
  27  * $DragonFly: src/usr.bin/fsync/fsync.c,v 1.5 2006/03/16 15:06:05 swildner Exp $
  28  */
  29
  30 #include <err.h>
  31 #include <fcntl.h>
  32 #include <stdio.h>
  33 #include <stdlib.h>
  34 #include <sysexits.h>
  35 #include <unistd.h>
  36
  37 static void     usage(void);
  38
  39 int
  40 main(int argc, char *argv[])
  41 {
  42         int fd;
  43         int i;
  44         int rval = 0;
  45
  46         if (argc < 2)
  47                 usage();
  48
  49         for (i = 1; i < argc; ++i) {
  50                 if ((fd = open(argv[i], O_RDONLY)) < 0) {
  51                         warn("open failed %s", argv[i]);
  52                         rval = 1;
  53                         continue;
  54                 }
  55
  56                 if (fsync(fd) != 0) {
  57                         warn("failed to fsync %s", argv[i]);
  58                         rval = 1;
  59                 }
  60                 close(fd);
  61         }
  62         return(rval);
  63 }
  64
  65 static void
  66 usage(void)
  67 {
  68         fprintf(stderr, "usage: fsync file ...\n");
  69         exit(EX_USAGE);
  70 }