1 /* $NetBSD: t_memset.c,v 1.3 2013/03/17 02:23:31 christos 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 1.3 2013/03/17 02:23:31 christos 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 41 static long page = 0; 42 static void fill(char *, size_t, char); 43 static bool check(char *, size_t, char); 44 45 ATF_TC(memset_array); 46 ATF_TC_HEAD(memset_array, tc) 47 { 48 atf_tc_set_md_var(tc, "descr", "Test memset(3) with arrays"); 49 } 50 51 ATF_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 66 ATF_TC(memset_return); 67 ATF_TC_HEAD(memset_return, tc) 68 { 69 atf_tc_set_md_var(tc, "descr", "Test memset(3) return value"); 70 } 71 72 ATF_TC_BODY(memset_return, tc) 73 { 74 char *b = (char *)0x1; 75 char c[2]; 76 ATF_REQUIRE_EQ(memset(b, 0, 0), b); 77 ATF_REQUIRE_EQ(memset(c, 2, sizeof(c)), c); 78 } 79 80 ATF_TC(memset_basic); 81 ATF_TC_HEAD(memset_basic, tc) 82 { 83 atf_tc_set_md_var(tc, "descr", "A basic test of memset(3)"); 84 } 85 86 ATF_TC_BODY(memset_basic, tc) 87 { 88 char *buf, *ret; 89 90 buf = malloc(page); 91 ret = malloc(page); 92 93 ATF_REQUIRE(buf != NULL); 94 ATF_REQUIRE(ret != NULL); 95 96 fill(ret, page, 0); 97 memset(buf, 0, page); 98 99 ATF_REQUIRE(memcmp(ret, buf, page) == 0); 100 101 fill(ret, page, 'x'); 102 memset(buf, 'x', page); 103 104 ATF_REQUIRE(memcmp(ret, buf, page) == 0); 105 106 free(buf); 107 free(ret); 108 } 109 110 ATF_TC(memset_nonzero); 111 ATF_TC_HEAD(memset_nonzero, tc) 112 { 113 atf_tc_set_md_var(tc, "descr", "Test memset(3) with non-zero params"); 114 } 115 116 ATF_TC_BODY(memset_nonzero, tc) 117 { 118 const size_t n = 0x7f; 119 char *buf; 120 size_t i; 121 122 buf = malloc(page); 123 ATF_REQUIRE(buf != NULL); 124 125 for (i = 0x21; i < n; i++) { 126 127 (void)memset(buf, i, page); 128 129 if (check(buf, page, i) != true) 130 atf_tc_fail("memset(3) did not fill properly"); 131 } 132 133 free(buf); 134 } 135 136 ATF_TC(memset_struct); 137 ATF_TC_HEAD(memset_struct, tc) 138 { 139 atf_tc_set_md_var(tc, "descr", "Test memset(3) with a structure"); 140 } 141 142 ATF_TC_BODY(memset_struct, tc) 143 { 144 struct stat st; 145 146 st.st_dev = 0; 147 st.st_ino = 1; 148 st.st_mode = 2; 149 st.st_nlink = 3; 150 st.st_uid = 4; 151 st.st_gid = 5; 152 st.st_rdev = 6; 153 st.st_size = 7; 154 st.st_atime = 8; 155 st.st_mtime = 9; 156 157 (void)memset(&st, 0, sizeof(struct stat)); 158 159 ATF_CHECK(st.st_dev == 0); 160 ATF_CHECK(st.st_ino == 0); 161 ATF_CHECK(st.st_mode == 0); 162 ATF_CHECK(st.st_nlink == 0); 163 ATF_CHECK(st.st_uid == 0); 164 ATF_CHECK(st.st_gid == 0); 165 ATF_CHECK(st.st_rdev == 0); 166 ATF_CHECK(st.st_size == 0); 167 ATF_CHECK(st.st_atime == 0); 168 ATF_CHECK(st.st_mtime == 0); 169 } 170 171 static void 172 fill(char *buf, size_t len, char x) 173 { 174 size_t i; 175 176 for (i = 0; i < len; i++) 177 buf[i] = x; 178 } 179 180 static bool 181 check(char *buf, size_t len, char x) 182 { 183 size_t i; 184 185 for (i = 0; i < len; i++) { 186 187 if (buf[i] != x) 188 return false; 189 } 190 191 return true; 192 } 193 194 ATF_TP_ADD_TCS(tp) 195 { 196 197 page = sysconf(_SC_PAGESIZE); 198 ATF_REQUIRE(page >= 0); 199 200 ATF_TP_ADD_TC(tp, memset_array); 201 ATF_TP_ADD_TC(tp, memset_basic); 202 ATF_TP_ADD_TC(tp, memset_nonzero); 203 ATF_TP_ADD_TC(tp, memset_struct); 204 ATF_TP_ADD_TC(tp, memset_return); 205 206 return atf_no_error(); 207 } 208