1 /* $NetBSD: t_memcpy.c,v 1.1 2010/12/26 13:35:54 pgoyette Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by 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 32 #include <atf-c.h> 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <assert.h> 38 #include <md5.h> 39 40 #include <sys/types.h> 41 42 #define ALIGNMENTS 16 43 #define LENGTHS 4 44 #define BLOCKTYPES 4 45 46 MD5_CTX mc[1]; 47 48 typedef unsigned char testBlock_t[ALIGNMENTS * LENGTHS]; 49 50 testBlock_t bss1, bss2; 51 52 unsigned char *start[BLOCKTYPES] = { 53 bss1, bss2 54 }; 55 56 char result[100]; 57 const char goodResult[] = "7b405d24bc03195474c70ddae9e1f8fb"; 58 59 static void 60 runTest(unsigned char *b1, unsigned char *b2) 61 { 62 int i, j, k, m; 63 size_t n; 64 65 for (i = 0; i < ALIGNMENTS; ++i) { 66 for (j = 0; j < ALIGNMENTS; ++j) { 67 k = sizeof(testBlock_t) - (i > j ? i : j); 68 for (m = 0; m < k; ++m) { 69 for (n = 0; n < sizeof(testBlock_t); ++n) { 70 b1[n] = (unsigned char)random(); 71 b2[n] = (unsigned char)random(); 72 } 73 memcpy(b1 + i, b2 + j, m); 74 MD5Update(mc, b1, sizeof(testBlock_t)); 75 MD5Update(mc, b2, sizeof(testBlock_t)); 76 } 77 } 78 } 79 } 80 81 ATF_TC(check_memcpy); 82 83 ATF_TC_HEAD(check_memcpy, tc) 84 { 85 86 atf_tc_set_md_var(tc, "descr", "Test memcpy results"); 87 } 88 89 ATF_TC_BODY(check_memcpy, tc) 90 { 91 int i, j; 92 testBlock_t auto1, auto2; 93 94 start[2] = auto1; 95 start[3] = auto2; 96 97 srandom(0L); 98 MD5Init(mc); 99 for (i = 0; i < BLOCKTYPES; ++i) 100 for (j = 0; j < BLOCKTYPES; ++j) 101 if (i != j) 102 runTest(start[i], start[j]); 103 MD5End(mc, result); 104 ATF_REQUIRE_EQ(strcmp(result, goodResult), 0); 105 } 106 107 ATF_TP_ADD_TCS(tp) 108 { 109 110 ATF_TP_ADD_TC(tp, check_memcpy); 111 112 return atf_no_error(); 113 } 114