xref: /freebsd/usr.bin/fsync/fsync.c (revision 66fd12cf4896eb08ad8e7a2627537f84ead84dd3)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef lint
30 #endif /* not lint */
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <err.h>
35 #include <fcntl.h>
36 #include <stdio.h>
37 #include <stdlib.h>
38 #include <sysexits.h>
39 #include <unistd.h>
40 
41 static void	usage(void);
42 
43 int
44 main(int argc, char *argv[])
45 {
46 	int fd;
47 	int i;
48 	int rval;
49 
50 	if (argc < 2) {
51 		usage();
52 		/* NOTREACHED */
53 	}
54 
55 	rval = EX_OK;
56 	for (i = 1; i < argc; ++i) {
57 		if ((fd = open(argv[i], O_RDONLY)) == -1) {
58 			warn("open %s", argv[i]);
59 			if (rval == EX_OK)
60 				rval = EX_NOINPUT;
61 			continue;
62 		}
63 
64 		if (fsync(fd) == -1) {
65 			warn("fsync %s", argv[i]);
66 			if (rval == EX_OK)
67 				rval = EX_OSERR;
68 		}
69 		close(fd);
70 	}
71 	exit(rval);
72 	/* NOTREACHED */
73 }
74 
75 static void
76 usage(void)
77 {
78 
79 	fprintf(stderr, "usage: fsync file ...\n");
80 	exit(EX_USAGE);
81 	/* NOTREACHED */
82 }
83