1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 *
18 * Author: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
19 *
20 */
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <fcntl.h>
25 #include <sys/types.h>
26 #include <sys/stat.h>
27 #include <unistd.h>
28
29 #include "test.h"
30
tst_fill_file(const char * path,char pattern,size_t bs,size_t bcount)31 int tst_fill_file(const char *path, char pattern, size_t bs, size_t bcount)
32 {
33 int fd;
34 size_t counter;
35 char *buf;
36
37 fd = open(path, O_CREAT|O_WRONLY|O_TRUNC, S_IRUSR|S_IWUSR);
38 if (fd < 0)
39 return -1;
40
41 /* Filling a memory buffer with provided pattern */
42 buf = malloc(bs);
43 if (buf == NULL) {
44 close(fd);
45
46 return -1;
47 }
48
49 for (counter = 0; counter < bs; counter++)
50 buf[counter] = pattern;
51
52 /* Filling the file */
53 for (counter = 0; counter < bcount; counter++) {
54 if (write(fd, buf, bs) != (ssize_t)bs) {
55 free(buf);
56 close(fd);
57 unlink(path);
58
59 return -1;
60 }
61 }
62
63 free(buf);
64
65 if (close(fd) < 0) {
66 unlink(path);
67
68 return -1;
69 }
70
71 return 0;
72 }
73