tests/lib/libc/string/t_memcpy.c

   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
  43 MD5_CTX mc[1];
  44
  45 typedef unsigned char testBlock_t[ALIGNMENTS * LENGTHS];
  46
  47 testBlock_t bss1, bss2;
  48
  49 unsigned char *start[BLOCKTYPES] = {
  50                 bss1, bss2
  51 };
  52
  53 char result[100];
  54 const char goodResult[] = "7b405d24bc03195474c70ddae9e1f8fb";
  55
  56 static void
  57 runTest(unsigned char *b1, unsigned char *b2)
  58 {
  59         int     i, j, k, m;
  60         size_t  n;
  61
  62         for (i = 0; i < ALIGNMENTS; ++i) {
  63                 for (j = 0; j < ALIGNMENTS; ++j) {
  64                         k = sizeof(testBlock_t) - (i > j ? i : j);
  65                         for (m = 0; m < k; ++m) {
  66                                 for (n = 0; n < sizeof(testBlock_t); ++n) {
  67                                         b1[n] = (unsigned char)random();
  68                                         b2[n] = (unsigned char)random();
  69                                 }
  70                                 memcpy(b1 + i, b2 + j, m);
  71                                 MD5Update(mc, b1, sizeof(testBlock_t));
  72                                 MD5Update(mc, b2, sizeof(testBlock_t));
  73                         }
  74                 }
  75         }
  76 }
  77
  78 ATF_TC(memcpy_basic);
  79 ATF_TC_HEAD(memcpy_basic, tc)
  80 {
  81         atf_tc_set_md_var(tc, "descr", "Test memcpy results");
  82 }
  83
  84 ATF_TC_BODY(memcpy_basic, tc)
  85 {
  86         int i, j;
  87         testBlock_t auto1, auto2;
  88
  89         start[2] = auto1;
  90         start[3] = auto2;
  91
  92         srandom(0L);
  93         MD5Init(mc);
  94         for (i = 0; i < BLOCKTYPES; ++i)
  95                 for (j = 0; j < BLOCKTYPES; ++j)
  96                         if (i != j)
  97                                 runTest(start[i], start[j]);
  98         MD5End(mc, result);
  99         ATF_REQUIRE_EQ(strcmp(result, goodResult), 0);
 100 }
 101
 102 ATF_TC(memccpy_simple);
 103 ATF_TC_HEAD(memccpy_simple, tc)
 104 {
 105         atf_tc_set_md_var(tc, "descr", "Test memccpy(3) results");
 106 }
 107
 108 ATF_TC_BODY(memccpy_simple, tc)
 109 {
 110         char buf[100];
 111         char c = ' ';
 112
 113         (void)memset(buf, c, sizeof(buf));
 114
 115         ATF_CHECK(memccpy(buf, "foo bar", c, sizeof(buf)) != NULL);
 116         ATF_CHECK(buf[4] == c);
 117
 118         ATF_CHECK(memccpy(buf, "foo bar", '\0', sizeof(buf) - 1) != NULL);
 119         ATF_CHECK(buf[8] == c);
 120
 121         ATF_CHECK(memccpy(buf, "foo bar", 'x', 7) == NULL);
 122         ATF_CHECK(strncmp(buf, "foo bar", 7) == 0);
 123
 124         ATF_CHECK(memccpy(buf, "xxxxxxx", 'r', 7) == NULL);
 125         ATF_CHECK(strncmp(buf, "xxxxxxx", 7) == 0);
 126 }
 127
 128 ATF_TC(memcpy_return);
 129 ATF_TC_HEAD(memcpy_return, tc)
 130 {
 131         atf_tc_set_md_var(tc, "descr", "Test memcpy(3) return value");
 132 }
 133
 134 ATF_TC_BODY(memcpy_return, tc)
 135 {
 136         char *b = (char *)0x1;
 137         char c[2];
 138         ATF_REQUIRE_EQ(memcpy(b, b, 0), b);
 139         ATF_REQUIRE_EQ(memcpy(c, "ab", sizeof(c)), c);
 140 }
 141
 142 ATF_TP_ADD_TCS(tp)
 143 {
 144
 145         ATF_TP_ADD_TC(tp, memcpy_basic);
 146         ATF_TP_ADD_TC(tp, memcpy_return);
 147         ATF_TP_ADD_TC(tp, memccpy_simple);
 148
 149         return atf_no_error();
 150 }