1/* $NetBSD: t_memset.c,v 1.1 2011/06/03 06:39:52 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_memset.c,v 1.1 2011/06/03 06:39:52 jruoho Exp $");
33
34#include <sys/stat.h>
35
36#include <atf-c.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40
41static long	page = 0;
42static void	fill(char *, size_t, char);
43static bool	check(char *, size_t, char);
44
45ATF_TC(memset_array);
46ATF_TC_HEAD(memset_array, tc)
47{
48	atf_tc_set_md_var(tc, "descr", "Test memset(3) with arrays");
49}
50
51ATF_TC_BODY(memset_array, tc)
52{
53	char buf[1024];
54
55	(void)memset(buf, 0, sizeof(buf));
56
57	if (check(buf, sizeof(buf), 0) != true)
58		atf_tc_fail("memset(3) did not fill a static buffer");
59
60	(void)memset(buf, 'x', sizeof(buf));
61
62	if (check(buf, sizeof(buf), 'x') != true)
63		atf_tc_fail("memset(3) did not fill a static buffer");
64}
65
66ATF_TC(memset_basic);
67ATF_TC_HEAD(memset_basic, tc)
68{
69	atf_tc_set_md_var(tc, "descr", "A basic test of memset(3)");
70}
71
72ATF_TC_BODY(memset_basic, tc)
73{
74	char *buf, *ret;
75
76	buf = malloc(page);
77	ret = malloc(page);
78
79	ATF_REQUIRE(buf != NULL);
80	ATF_REQUIRE(ret != NULL);
81
82	fill(ret, page, 0);
83	memset(buf, 0, page);
84
85	ATF_REQUIRE(memcmp(ret, buf, page) == 0);
86
87	fill(ret, page, 'x');
88	memset(buf, 'x', page);
89
90	ATF_REQUIRE(memcmp(ret, buf, page) == 0);
91
92	free(buf);
93	free(ret);
94}
95
96ATF_TC(memset_nonzero);
97ATF_TC_HEAD(memset_nonzero, tc)
98{
99	atf_tc_set_md_var(tc, "descr", "Test memset(3) with non-zero params");
100}
101
102ATF_TC_BODY(memset_nonzero, tc)
103{
104	const size_t n = 0x7f;
105	char *buf;
106	size_t i;
107
108	buf = malloc(page);
109	ATF_REQUIRE(buf != NULL);
110
111	for (i = 0x21; i < n; i++) {
112
113		(void)memset(buf, i, page);
114
115		if (check(buf, page, i) != true)
116			atf_tc_fail("memset(3) did not fill properly");
117	}
118
119	free(buf);
120}
121
122ATF_TC(memset_struct);
123ATF_TC_HEAD(memset_struct, tc)
124{
125	atf_tc_set_md_var(tc, "descr", "Test memset(3) with a structure");
126}
127
128ATF_TC_BODY(memset_struct, tc)
129{
130	struct stat st;
131
132	st.st_dev = 0;
133	st.st_ino = 1;
134	st.st_mode = 2;
135	st.st_nlink = 3;
136	st.st_uid = 4;
137	st.st_gid = 5;
138	st.st_rdev = 6;
139	st.st_size = 7;
140	st.st_atime = 8;
141	st.st_mtime = 9;
142
143	(void)memset(&st, 0, sizeof(struct stat));
144
145	ATF_CHECK(st.st_dev == 0);
146	ATF_CHECK(st.st_ino == 0);
147	ATF_CHECK(st.st_mode == 0);
148	ATF_CHECK(st.st_nlink == 0);
149	ATF_CHECK(st.st_uid == 0);
150	ATF_CHECK(st.st_gid == 0);
151	ATF_CHECK(st.st_rdev == 0);
152	ATF_CHECK(st.st_size == 0);
153	ATF_CHECK(st.st_atime == 0);
154	ATF_CHECK(st.st_mtime == 0);
155}
156
157static void
158fill(char *buf, size_t len, char x)
159{
160	size_t i;
161
162	for (i = 0; i < len; i++)
163		buf[i] = x;
164}
165
166static bool
167check(char *buf, size_t len, char x)
168{
169	size_t i;
170
171	for (i = 0; i < len; i++) {
172
173		if (buf[i] != x)
174			return false;
175	}
176
177	return true;
178}
179
180ATF_TP_ADD_TCS(tp)
181{
182
183	page = sysconf(_SC_PAGESIZE);
184	ATF_REQUIRE(page >= 0);
185
186	ATF_TP_ADD_TC(tp, memset_array);
187	ATF_TP_ADD_TC(tp, memset_basic);
188	ATF_TP_ADD_TC(tp, memset_nonzero);
189	ATF_TP_ADD_TC(tp, memset_struct);
190
191	return atf_no_error();
192}
193