1 /* $NetBSD: t_printf.c,v 1.8 2012/04/11 16:21:42 jruoho 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 <sys/types.h> 30 #include <sys/resource.h> 31 #include <atf-c.h> 32 #include <math.h> 33 #include <stdio.h> 34 #include <stdint.h> 35 #include <string.h> 36 #include <time.h> 37 #include <stdlib.h> 38 39 ATF_TC(snprintf_c99); 40 ATF_TC_HEAD(snprintf_c99, tc) 41 { 42 43 atf_tc_set_md_var(tc, "descr", 44 "Test printf(3) C99 conformance (PR lib/22019)"); 45 } 46 47 ATF_TC_BODY(snprintf_c99, tc) 48 { 49 char s[4]; 50 51 (void)memset(s, '\0', sizeof(s)); 52 (void)snprintf(s, sizeof(s), "%#.o", 0); 53 (void)printf("printf = %#.o\n", 0); 54 (void)fprintf(stderr, "snprintf = %s", s); 55 56 ATF_REQUIRE(strlen(s) == 1); 57 ATF_REQUIRE(s[0] == '0'); 58 } 59 60 ATF_TC(snprintf_dotzero); 61 ATF_TC_HEAD(snprintf_dotzero, tc) 62 { 63 64 atf_tc_set_md_var(tc, "descr", 65 "PR lib/32951: %%.0f formats (0.0,0.5] to \"0.\""); 66 } 67 68 ATF_TC_BODY(snprintf_dotzero, tc) 69 { 70 char s[4]; 71 72 ATF_CHECK(snprintf(s, sizeof(s), "%.0f", 0.1) == 1); 73 ATF_REQUIRE_STREQ(s, "0"); 74 } 75 76 ATF_TC(snprintf_posarg); 77 ATF_TC_HEAD(snprintf_posarg, tc) 78 { 79 80 atf_tc_set_md_var(tc, "descr", "test for positional arguments"); 81 } 82 83 ATF_TC_BODY(snprintf_posarg, tc) 84 { 85 char s[16]; 86 87 ATF_CHECK(snprintf(s, sizeof(s), "%1$d", -23) == 3); 88 ATF_REQUIRE_STREQ(s, "-23"); 89 } 90 91 ATF_TC(snprintf_posarg_width); 92 ATF_TC_HEAD(snprintf_posarg_width, tc) 93 { 94 95 atf_tc_set_md_var(tc, "descr", "test for positional arguments with " 96 "field width"); 97 } 98 99 ATF_TC_BODY(snprintf_posarg_width, tc) 100 { 101 char s[16]; 102 103 ATF_CHECK(snprintf(s, sizeof(s), "%1$*2$d", -23, 4) == 4); 104 ATF_REQUIRE_STREQ(s, " -23"); 105 } 106 107 ATF_TC(snprintf_posarg_error); 108 ATF_TC_HEAD(snprintf_posarg_error, tc) 109 { 110 111 atf_tc_set_md_var(tc, "descr", "test for positional arguments out " 112 "of bounds"); 113 } 114 115 ATF_TC_BODY(snprintf_posarg_error, tc) 116 { 117 char s[16], fmt[32]; 118 119 snprintf(fmt, sizeof(fmt), "%%%zu$d", SIZE_MAX / sizeof(size_t)); 120 121 ATF_CHECK(snprintf(s, sizeof(s), fmt, -23) == -1); 122 } 123 124 ATF_TC(snprintf_float); 125 ATF_TC_HEAD(snprintf_float, tc) 126 { 127 128 atf_tc_set_md_var(tc, "descr", "test that floating conversions don't" 129 " leak memory"); 130 } 131 132 ATF_TC_BODY(snprintf_float, tc) 133 { 134 union { 135 double d; 136 uint64_t bits; 137 } u; 138 uint32_t ul, uh; 139 time_t now; 140 char buf[1000]; 141 struct rlimit rl; 142 143 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 144 ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1); 145 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 146 ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1); 147 148 time(&now); 149 srand(now); 150 for (size_t i = 0; i < 10000; i++) { 151 ul = rand(); 152 uh = rand(); 153 u.bits = (uint64_t)uh << 32 | ul; 154 ATF_CHECK(snprintf(buf, sizeof buf, " %.2f", u.d) != -1); 155 } 156 } 157 158 ATF_TC(sprintf_zeropad); 159 ATF_TC_HEAD(sprintf_zeropad, tc) 160 { 161 atf_tc_set_md_var(tc, "descr", 162 "Test output format zero padding (PR lib/44113)"); 163 } 164 165 ATF_TC_BODY(sprintf_zeropad, tc) 166 { 167 char str[1024]; 168 169 ATF_CHECK(sprintf(str, "%010f", 0.0) == 10); 170 ATF_REQUIRE_STREQ(str, "000.000000"); 171 172 /* ieeefp */ 173 #ifndef __vax__ 174 /* printf(3) should ignore zero padding for nan/inf */ 175 ATF_CHECK(sprintf(str, "%010f", NAN) == 10); 176 ATF_REQUIRE_STREQ(str, " nan"); 177 ATF_CHECK(sprintf(str, "%010f", INFINITY) == 10); 178 ATF_REQUIRE_STREQ(str, " inf"); 179 #endif 180 } 181 182 ATF_TP_ADD_TCS(tp) 183 { 184 185 ATF_TP_ADD_TC(tp, snprintf_c99); 186 ATF_TP_ADD_TC(tp, snprintf_dotzero); 187 ATF_TP_ADD_TC(tp, snprintf_posarg); 188 ATF_TP_ADD_TC(tp, snprintf_posarg_width); 189 ATF_TP_ADD_TC(tp, snprintf_posarg_error); 190 ATF_TP_ADD_TC(tp, snprintf_float); 191 ATF_TP_ADD_TC(tp, sprintf_zeropad); 192 193 return atf_no_error(); 194 } 195