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
31int 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