1 /*
2 * Copyright (c) 2002, Intel Corporation. All rights reserved.
3 * This file is licensed under the GPL license. For the full content
4 * of this license, see the COPYING file at the top level of this
5 * source tree.
6
7 * Upon successful completion, fsync() shall return 0.
8 * Otherwise, .1 shall be returned and errno set
9 * to indicate the error. If the fsync() function fails.
10 *
11 * 1. Create a regular file;
12 * 2. Write a few bytes to the file, call fsycn(), should return 0;
13 *
14 */
15
16 #include <stdio.h>
17 #include <stdlib.h>
18 #include <unistd.h>
19 #include <sys/mman.h>
20 #include <sys/types.h>
21 #include <sys/stat.h>
22 #include <fcntl.h>
23 #include <string.h>
24 #include <errno.h>
25 #include "posixtest.h"
26
27 #define TNAME "fsync/4-1.c"
28
main(void)29 int main(void)
30 {
31 char tmpfname[256];
32 char *data;
33 int total_size = 1024;
34 int fd;
35
36 snprintf(tmpfname, sizeof(tmpfname), "/tmp/pts_fsync_4_1_%d", getpid());
37 unlink(tmpfname);
38 fd = open(tmpfname, O_CREAT | O_RDWR | O_EXCL, S_IRUSR | S_IWUSR);
39 if (fd == -1) {
40 printf(TNAME " Error at open(): %s\n", strerror(errno));
41 exit(PTS_UNRESOLVED);
42 }
43
44 /* Make sure the file is removed when it is closed */
45 unlink(tmpfname);
46 data = malloc(total_size);
47 memset(data, 'a', total_size);
48 if (write(fd, data, total_size) != total_size) {
49 printf(TNAME "Error at write(): %s\n", strerror(errno));
50 free(data);
51 exit(PTS_UNRESOLVED);
52 }
53 free(data);
54
55 if (fsync(fd) == -1) {
56 printf(TNAME "Error at fsync(): %s\n", strerror(errno));
57 exit(PTS_FAIL);
58 }
59
60 close(fd);
61 printf("Test PASSED\n");
62 return PTS_PASS;
63 }
64