1 /* $NetBSD: t_printf.c,v 1.4 2012/02/26 23:14:26 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 <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_dotzero); 40 ATF_TC_HEAD(snprintf_dotzero, tc) 41 { 42 43 atf_tc_set_md_var(tc, "descr", \ 44 "PR lib/32951: %.0f formats (0.0,0.5] to \"0.\""); 45 } 46 47 ATF_TC_BODY(snprintf_dotzero, tc) 48 { 49 char s[4]; 50 51 ATF_CHECK(snprintf(s, sizeof(s), "%.0f", 0.1) == 1); 52 ATF_REQUIRE_STREQ(s, "0"); 53 } 54 55 ATF_TC(snprintf_posarg); 56 ATF_TC_HEAD(snprintf_posarg, tc) 57 { 58 59 atf_tc_set_md_var(tc, "descr", "test for positional arguments"); 60 } 61 62 ATF_TC_BODY(snprintf_posarg, tc) 63 { 64 char s[16]; 65 66 ATF_CHECK(snprintf(s, sizeof(s), "%1$d", -23) == 3); 67 ATF_REQUIRE_STREQ(s, "-23"); 68 } 69 70 ATF_TC(snprintf_posarg_width); 71 ATF_TC_HEAD(snprintf_posarg_width, tc) 72 { 73 74 atf_tc_set_md_var(tc, "descr", "test for positional arguments with " 75 "field width"); 76 } 77 78 ATF_TC_BODY(snprintf_posarg_width, tc) 79 { 80 char s[16]; 81 82 ATF_CHECK(snprintf(s, sizeof(s), "%1$*2$d", -23, 4) == 4); 83 ATF_REQUIRE_STREQ(s, " -23"); 84 } 85 86 ATF_TC(snprintf_posarg_error); 87 ATF_TC_HEAD(snprintf_posarg_error, tc) 88 { 89 90 atf_tc_set_md_var(tc, "descr", "test for positional arguments out " 91 "of bounds"); 92 } 93 94 ATF_TC_BODY(snprintf_posarg_error, tc) 95 { 96 char s[16], fmt[32]; 97 98 snprintf(fmt, sizeof(fmt), "%%%zu$d", SIZE_MAX / sizeof(size_t)); 99 100 ATF_CHECK(snprintf(s, sizeof(s), fmt, -23) == -1); 101 } 102 103 ATF_TC(snprintf_float); 104 ATF_TC_HEAD(snprintf_float, tc) 105 { 106 107 atf_tc_set_md_var(tc, "descr", "test that floating conversions don't" 108 " leak memory"); 109 } 110 111 ATF_TC_BODY(snprintf_float, tc) 112 { 113 union { 114 double d; 115 uint64_t bits; 116 } u; 117 uint32_t ul, uh; 118 time_t now; 119 char buf[1000]; 120 struct rlimit rl; 121 122 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 123 ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1); 124 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 125 ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1); 126 127 time(&now); 128 srand(now); 129 for (size_t i = 0; i < 1000000; i++) { 130 ul = rand(); 131 uh = rand(); 132 u.bits = (uint64_t)uh << 32 | ul; 133 ATF_CHECK(snprintf(buf, sizeof buf, " %.2f", u.d) != -1); 134 } 135 } 136 137 ATF_TC(sprintf_zeropad); 138 ATF_TC_HEAD(sprintf_zeropad, tc) 139 { 140 141 atf_tc_set_md_var(tc, "descr", "output format zero padding"); 142 } 143 144 ATF_TC_BODY(sprintf_zeropad, tc) 145 { 146 char str[1024]; 147 148 ATF_CHECK(sprintf(str, "%010f", 0.0) == 10); 149 ATF_REQUIRE_STREQ(str, "000.000000"); 150 151 /* ieeefp */ 152 #ifndef __vax__ 153 /* PR/44113: printf(3) should ignore zero padding for nan/inf */ 154 ATF_CHECK(sprintf(str, "%010f", NAN) == 10); 155 ATF_REQUIRE_STREQ(str, " nan"); 156 ATF_CHECK(sprintf(str, "%010f", INFINITY) == 10); 157 ATF_REQUIRE_STREQ(str, " inf"); 158 #endif 159 } 160 161 ATF_TP_ADD_TCS(tp) 162 { 163 164 ATF_TP_ADD_TC(tp, snprintf_dotzero); 165 ATF_TP_ADD_TC(tp, snprintf_posarg); 166 ATF_TP_ADD_TC(tp, snprintf_posarg_width); 167 ATF_TP_ADD_TC(tp, snprintf_posarg_error); 168 ATF_TP_ADD_TC(tp, snprintf_float); 169 ATF_TP_ADD_TC(tp, sprintf_zeropad); 170 171 return atf_no_error(); 172 } 173