tests/lib/libc/stdio/t_printf.c

   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 }