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 #ifndef __NetBSD__ 40 #include <signal.h> 41 #endif 42 43 ATF_TC(snprintf_c99); 44 ATF_TC_HEAD(snprintf_c99, tc) 45 { 46 47 atf_tc_set_md_var(tc, "descr", 48 "Test printf(3) C99 conformance (PR lib/22019)"); 49 } 50 51 ATF_TC_BODY(snprintf_c99, tc) 52 { 53 char s[4]; 54 55 (void)memset(s, '\0', sizeof(s)); 56 (void)snprintf(s, sizeof(s), "%#.o", 0); 57 (void)printf("printf = %#.o\n", 0); 58 (void)fprintf(stderr, "snprintf = %s", s); 59 60 ATF_REQUIRE(strlen(s) == 1); 61 ATF_REQUIRE(s[0] == '0'); 62 } 63 64 ATF_TC(snprintf_dotzero); 65 ATF_TC_HEAD(snprintf_dotzero, tc) 66 { 67 68 atf_tc_set_md_var(tc, "descr", 69 "PR lib/32951: %%.0f formats (0.0,0.5] to \"0.\""); 70 } 71 72 ATF_TC_BODY(snprintf_dotzero, tc) 73 { 74 char s[4]; 75 76 ATF_CHECK(snprintf(s, sizeof(s), "%.0f", 0.1) == 1); 77 ATF_REQUIRE_STREQ(s, "0"); 78 } 79 80 ATF_TC(snprintf_posarg); 81 ATF_TC_HEAD(snprintf_posarg, tc) 82 { 83 84 atf_tc_set_md_var(tc, "descr", "test for positional arguments"); 85 } 86 87 ATF_TC_BODY(snprintf_posarg, tc) 88 { 89 char s[16]; 90 91 ATF_CHECK(snprintf(s, sizeof(s), "%1$d", -23) == 3); 92 ATF_REQUIRE_STREQ(s, "-23"); 93 } 94 95 ATF_TC(snprintf_posarg_width); 96 ATF_TC_HEAD(snprintf_posarg_width, tc) 97 { 98 99 atf_tc_set_md_var(tc, "descr", "test for positional arguments with " 100 "field width"); 101 } 102 103 ATF_TC_BODY(snprintf_posarg_width, tc) 104 { 105 char s[16]; 106 107 ATF_CHECK(snprintf(s, sizeof(s), "%1$*2$d", -23, 4) == 4); 108 ATF_REQUIRE_STREQ(s, " -23"); 109 } 110 111 ATF_TC(snprintf_posarg_error); 112 ATF_TC_HEAD(snprintf_posarg_error, tc) 113 { 114 115 atf_tc_set_md_var(tc, "descr", "test for positional arguments out " 116 "of bounds"); 117 } 118 119 ATF_TC_BODY(snprintf_posarg_error, tc) 120 { 121 char s[16], fmt[32]; 122 123 #ifndef __NetBSD__ 124 atf_tc_expect_signal(SIGSEGV, 125 "some non-NetBSD platforms including FreeBSD don't validate " 126 "negative size; testcase blows up with SIGSEGV"); 127 #endif 128 129 snprintf(fmt, sizeof(fmt), "%%%zu$d", SIZE_MAX / sizeof(size_t)); 130 131 ATF_CHECK(snprintf(s, sizeof(s), fmt, -23) == -1); 132 } 133 134 ATF_TC(snprintf_float); 135 ATF_TC_HEAD(snprintf_float, tc) 136 { 137 138 atf_tc_set_md_var(tc, "descr", "test that floating conversions don't" 139 " leak memory"); 140 } 141 142 ATF_TC_BODY(snprintf_float, tc) 143 { 144 union { 145 double d; 146 uint64_t bits; 147 } u; 148 uint32_t ul, uh; 149 time_t now; 150 char buf[1000]; 151 struct rlimit rl; 152 153 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 154 ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1); 155 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024; 156 ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1); 157 158 time(&now); 159 srand(now); 160 for (size_t i = 0; i < 10000; i++) { 161 ul = rand(); 162 uh = rand(); 163 u.bits = (uint64_t)uh << 32 | ul; 164 ATF_CHECK(snprintf(buf, sizeof buf, " %.2f", u.d) != -1); 165 } 166 } 167 168 ATF_TC(sprintf_zeropad); 169 ATF_TC_HEAD(sprintf_zeropad, tc) 170 { 171 atf_tc_set_md_var(tc, "descr", 172 "Test output format zero padding (PR lib/44113)"); 173 } 174 175 ATF_TC_BODY(sprintf_zeropad, tc) 176 { 177 char str[1024]; 178 179 ATF_CHECK(sprintf(str, "%010f", 0.0) == 10); 180 ATF_REQUIRE_STREQ(str, "000.000000"); 181 182 /* ieeefp */ 183 #ifndef __vax__ 184 /* printf(3) should ignore zero padding for nan/inf */ 185 ATF_CHECK(sprintf(str, "%010f", NAN) == 10); 186 ATF_REQUIRE_STREQ(str, " nan"); 187 ATF_CHECK(sprintf(str, "%010f", INFINITY) == 10); 188 ATF_REQUIRE_STREQ(str, " inf"); 189 #endif 190 } 191 192 ATF_TP_ADD_TCS(tp) 193 { 194 195 ATF_TP_ADD_TC(tp, snprintf_c99); 196 ATF_TP_ADD_TC(tp, snprintf_dotzero); 197 ATF_TP_ADD_TC(tp, snprintf_posarg); 198 ATF_TP_ADD_TC(tp, snprintf_posarg_width); 199 ATF_TP_ADD_TC(tp, snprintf_posarg_error); 200 ATF_TP_ADD_TC(tp, snprintf_float); 201 ATF_TP_ADD_TC(tp, sprintf_zeropad); 202 203 return atf_no_error(); 204 } 205