t_memcpy.c revision 302447 
1/* $NetBSD: t_memcpy.c,v 1.5 2013/03/17 02:23:31 christos Exp $ */
2
3/*-
4 * Copyright (c) 2010 The NetBSD Foundation, Inc.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <atf-c.h>
30
31#include <stdio.h>
32#include <stdlib.h>
33#include <string.h>
34#include <assert.h>
35#include <md5.h>
36
37#include <sys/types.h>
38
39#define	ALIGNMENTS 16
40#define	LENGTHS	    4
41#define BLOCKTYPES 4
42
43MD5_CTX mc[1];
44
45typedef	unsigned char testBlock_t[ALIGNMENTS * LENGTHS];
46
47testBlock_t bss1, bss2;
48
49unsigned char *start[BLOCKTYPES] = {
50		bss1, bss2
51};
52
53char result[100];
54#ifdef __NetBSD__
55const char goodResult[] = "7b405d24bc03195474c70ddae9e1f8fb";
56#else
57const char goodResult[] = "217b4fbe456916bf62a2f85df752e4ab";
58#endif
59
60static void
61runTest(unsigned char *b1, unsigned char *b2)
62{
63	int	i, j, k, m;
64	size_t	n;
65
66	for (i = 0; i < ALIGNMENTS; ++i) {
67		for (j = 0; j < ALIGNMENTS; ++j) {
68			k = sizeof(testBlock_t) - (i > j ? i : j);
69			for (m = 0; m < k; ++m) {
70				for (n = 0; n < sizeof(testBlock_t); ++n) {
71					b1[n] = (unsigned char)random();
72					b2[n] = (unsigned char)random();
73				}
74				memcpy(b1 + i, b2 + j, m);
75				MD5Update(mc, b1, sizeof(testBlock_t));
76				MD5Update(mc, b2, sizeof(testBlock_t));
77			}
78		}
79	}
80}
81
82ATF_TC(memcpy_basic);
83ATF_TC_HEAD(memcpy_basic, tc)
84{
85	atf_tc_set_md_var(tc, "descr", "Test memcpy results");
86}
87
88ATF_TC_BODY(memcpy_basic, tc)
89{
90	int i, j;
91	testBlock_t auto1, auto2;
92
93	start[2] = auto1;
94	start[3] = auto2;
95
96#ifdef __NetBSD__
97	srandom(0L);
98#else
99	/*
100	 * random() shall produce by default a sequence of numbers that can be
101	 * duplicated by calling srandom() with 1 as the seed.
102	 */
103	srandom(1);
104#endif
105	MD5Init(mc);
106	for (i = 0; i < BLOCKTYPES; ++i)
107		for (j = 0; j < BLOCKTYPES; ++j)
108			if (i != j)
109				runTest(start[i], start[j]);
110	MD5End(mc, result);
111#ifdef __NetBSD__
112	ATF_REQUIRE_EQ(strcmp(result, goodResult), 0);
113#else
114	ATF_REQUIRE_EQ_MSG(strcmp(result, goodResult), 0, "%s != %s",
115	    result, goodResult);
116#endif
117}
118
119ATF_TC(memccpy_simple);
120ATF_TC_HEAD(memccpy_simple, tc)
121{
122        atf_tc_set_md_var(tc, "descr", "Test memccpy(3) results");
123}
124
125ATF_TC_BODY(memccpy_simple, tc)
126{
127	char buf[100];
128	char c = ' ';
129
130	(void)memset(buf, c, sizeof(buf));
131
132	ATF_CHECK(memccpy(buf, "foo bar", c, sizeof(buf)) != NULL);
133	ATF_CHECK(buf[4] == c);
134
135	ATF_CHECK(memccpy(buf, "foo bar", '\0', sizeof(buf) - 1) != NULL);
136	ATF_CHECK(buf[8] == c);
137
138	ATF_CHECK(memccpy(buf, "foo bar", 'x', 7) == NULL);
139	ATF_CHECK(strncmp(buf, "foo bar", 7) == 0);
140
141	ATF_CHECK(memccpy(buf, "xxxxxxx", 'r', 7) == NULL);
142	ATF_CHECK(strncmp(buf, "xxxxxxx", 7) == 0);
143}
144
145ATF_TC(memcpy_return);
146ATF_TC_HEAD(memcpy_return, tc)
147{
148	atf_tc_set_md_var(tc, "descr", "Test memcpy(3) return value");
149}
150
151ATF_TC_BODY(memcpy_return, tc)
152{
153	char *b = (char *)0x1;
154	char c[2];
155	ATF_REQUIRE_EQ(memcpy(b, b, 0), b);
156	ATF_REQUIRE_EQ(memcpy(c, "ab", sizeof(c)), c);
157}
158
159ATF_TP_ADD_TCS(tp)
160{
161
162	ATF_TP_ADD_TC(tp, memcpy_basic);
163	ATF_TP_ADD_TC(tp, memcpy_return);
164	ATF_TP_ADD_TC(tp, memccpy_simple);
165
166	return atf_no_error();
167}
168