1 /* $NetBSD: snprintf-test.c,v 1.2 2017/01/28 21:31:50 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2000 - 2001 Kungliga Tekniska Hgskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 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 * 3. Neither the name of KTH nor the names of its contributors may be 20 * used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY 24 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE 27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 34 35 #include <config.h> 36 #include <krb5/roken.h> 37 #include <limits.h> 38 39 extern int rk_snprintf(char *, size_t, const char *, ...); 40 extern int rk_vsnprintf(char *, size_t, const char *, va_list); 41 42 static int 43 try (const char *format, ...) 44 { 45 int ret; 46 va_list ap; 47 char buf1[256], buf2[256]; 48 49 va_start (ap, format); 50 ret = rk_vsnprintf (buf1, sizeof(buf1), format, ap); 51 if (ret >= sizeof(buf1)) 52 errx (1, "increase buf and try again"); 53 va_end (ap); 54 va_start (ap, format); 55 vsprintf (buf2, format, ap); 56 ret = strcmp (buf1, buf2); 57 if (ret) 58 printf ("failed: format = \"%s\", \"%s\" != \"%s\"\n", 59 format, buf1, buf2); 60 va_end (ap); 61 return ret; 62 } 63 64 static int 65 cmp_with_sprintf_int (void) 66 { 67 int tot = 0; 68 int int_values[] = {INT_MIN, -17, -1, 0, 1, 17, 4711, 65535, INT_MAX}; 69 int i; 70 71 for (i = 0; i < sizeof(int_values) / sizeof(int_values[0]); ++i) { 72 tot += try ("%d", int_values[i]); 73 tot += try ("%x", int_values[i]); 74 tot += try ("%X", int_values[i]); 75 tot += try ("%o", int_values[i]); 76 tot += try ("%#x", int_values[i]); 77 tot += try ("%#X", int_values[i]); 78 tot += try ("%#o", int_values[i]); 79 tot += try ("%10d", int_values[i]); 80 tot += try ("%10x", int_values[i]); 81 tot += try ("%10X", int_values[i]); 82 tot += try ("%10o", int_values[i]); 83 tot += try ("%#10x", int_values[i]); 84 tot += try ("%#10X", int_values[i]); 85 tot += try ("%#10o", int_values[i]); 86 tot += try ("%-10d", int_values[i]); 87 tot += try ("%-10x", int_values[i]); 88 tot += try ("%-10X", int_values[i]); 89 tot += try ("%-10o", int_values[i]); 90 tot += try ("%-#10x", int_values[i]); 91 tot += try ("%-#10X", int_values[i]); 92 tot += try ("%-#10o", int_values[i]); 93 } 94 return tot; 95 } 96 97 static int 98 cmp_with_sprintf_long (void) 99 { 100 int tot = 0; 101 long long_values[] = {LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX}; 102 int i; 103 104 for (i = 0; i < sizeof(long_values) / sizeof(long_values[0]); ++i) { 105 tot += try ("%ld", long_values[i]); 106 tot += try ("%lx", long_values[i]); 107 tot += try ("%lX", long_values[i]); 108 tot += try ("%lo", long_values[i]); 109 tot += try ("%#lx", long_values[i]); 110 tot += try ("%#lX", long_values[i]); 111 tot += try ("%#lo", long_values[i]); 112 tot += try ("%10ld", long_values[i]); 113 tot += try ("%10lx", long_values[i]); 114 tot += try ("%10lX", long_values[i]); 115 tot += try ("%10lo", long_values[i]); 116 tot += try ("%#10lx", long_values[i]); 117 tot += try ("%#10lX", long_values[i]); 118 tot += try ("%#10lo", long_values[i]); 119 tot += try ("%-10ld", long_values[i]); 120 tot += try ("%-10lx", long_values[i]); 121 tot += try ("%-10lX", long_values[i]); 122 tot += try ("%-10lo", long_values[i]); 123 tot += try ("%-#10lx", long_values[i]); 124 tot += try ("%-#10lX", long_values[i]); 125 tot += try ("%-#10lo", long_values[i]); 126 } 127 return tot; 128 } 129 130 #ifdef HAVE_LONG_LONG 131 132 /* XXX doesn't work as expected on lp64 platforms with sizeof(long 133 * long) == sizeof(long) */ 134 135 static int 136 cmp_with_sprintf_long_long (void) 137 { 138 int tot = 0; 139 long long long_long_values[] = { 140 ((long long)LONG_MIN) - (sizeof(long long) > sizeof(long)), 141 LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX, 142 ((long long)LONG_MAX) + (sizeof(long long) > sizeof(long)) 143 }; 144 int i; 145 146 for (i = 0; i < sizeof(long_long_values) / sizeof(long_long_values[0]); ++i) { 147 tot += try ("%lld", long_long_values[i]); 148 tot += try ("%llx", long_long_values[i]); 149 tot += try ("%llX", long_long_values[i]); 150 tot += try ("%llo", long_long_values[i]); 151 tot += try ("%#llx", long_long_values[i]); 152 tot += try ("%#llX", long_long_values[i]); 153 tot += try ("%#llo", long_long_values[i]); 154 tot += try ("%10lld", long_long_values[i]); 155 tot += try ("%10llx", long_long_values[i]); 156 tot += try ("%10llX", long_long_values[i]); 157 tot += try ("%10llo", long_long_values[i]); 158 tot += try ("%#10llx", long_long_values[i]); 159 tot += try ("%#10llX", long_long_values[i]); 160 tot += try ("%#10llo", long_long_values[i]); 161 tot += try ("%-10lld", long_long_values[i]); 162 tot += try ("%-10llx", long_long_values[i]); 163 tot += try ("%-10llX", long_long_values[i]); 164 tot += try ("%-10llo", long_long_values[i]); 165 tot += try ("%-#10llx", long_long_values[i]); 166 tot += try ("%-#10llX", long_long_values[i]); 167 tot += try ("%-#10llo", long_long_values[i]); 168 } 169 return tot; 170 } 171 172 #endif 173 174 #if 0 175 static int 176 cmp_with_sprintf_float (void) 177 { 178 int tot = 0; 179 double double_values[] = {-99999, -999, -17.4, -4.3, -3.0, -1.5, -1, 180 0, 0.1, 0.2342374852, 0.2340007, 181 3.1415926, 14.7845, 34.24758, 9999, 9999999}; 182 int i; 183 184 for (i = 0; i < sizeof(double_values) / sizeof(double_values[0]); ++i) { 185 tot += try ("%f", double_values[i]); 186 tot += try ("%10f", double_values[i]); 187 tot += try ("%.2f", double_values[i]); 188 tot += try ("%7.0f", double_values[i]); 189 tot += try ("%5.2f", double_values[i]); 190 tot += try ("%0f", double_values[i]); 191 tot += try ("%#f", double_values[i]); 192 tot += try ("%e", double_values[i]); 193 tot += try ("%10e", double_values[i]); 194 tot += try ("%.2e", double_values[i]); 195 tot += try ("%7.0e", double_values[i]); 196 tot += try ("%5.2e", double_values[i]); 197 tot += try ("%0e", double_values[i]); 198 tot += try ("%#e", double_values[i]); 199 tot += try ("%E", double_values[i]); 200 tot += try ("%10E", double_values[i]); 201 tot += try ("%.2E", double_values[i]); 202 tot += try ("%7.0E", double_values[i]); 203 tot += try ("%5.2E", double_values[i]); 204 tot += try ("%0E", double_values[i]); 205 tot += try ("%#E", double_values[i]); 206 tot += try ("%g", double_values[i]); 207 tot += try ("%10g", double_values[i]); 208 tot += try ("%.2g", double_values[i]); 209 tot += try ("%7.0g", double_values[i]); 210 tot += try ("%5.2g", double_values[i]); 211 tot += try ("%0g", double_values[i]); 212 tot += try ("%#g", double_values[i]); 213 tot += try ("%G", double_values[i]); 214 tot += try ("%10G", double_values[i]); 215 tot += try ("%.2G", double_values[i]); 216 tot += try ("%7.0G", double_values[i]); 217 tot += try ("%5.2G", double_values[i]); 218 tot += try ("%0G", double_values[i]); 219 tot += try ("%#G", double_values[i]); 220 } 221 return tot; 222 } 223 #endif 224 225 static int 226 test_null (void) 227 { 228 return rk_snprintf (NULL, 0, "foo") != 3; 229 } 230 231 static int 232 test_sizet (void) 233 { 234 int tot = 0; 235 size_t sizet_values[] = { 0, 1, 2, 200, 4294967295u }; /* SIZE_MAX */ 236 char *result[] = { "0", "1", "2", "200", "4294967295" }; 237 int i; 238 239 for (i = 0; i < sizeof(sizet_values) / sizeof(sizet_values[0]); ++i) { 240 #if 0 241 tot += try("%zu", sizet_values[i]); 242 tot += try("%zx", sizet_values[i]); 243 tot += try("%zX", sizet_values[i]); 244 #else 245 char buf[256]; 246 rk_snprintf(buf, sizeof(buf), "%zu", sizet_values[i]); 247 if (strcmp(buf, result[i]) != 0) { 248 printf("%s != %s", buf, result[i]); 249 tot++; 250 } 251 #endif 252 } 253 return tot; 254 } 255 256 257 int 258 main (int argc, char **argv) 259 { 260 int ret = 0; 261 262 ret += cmp_with_sprintf_int (); 263 ret += cmp_with_sprintf_long (); 264 #ifdef HAVE_LONG_LONG 265 ret += cmp_with_sprintf_long_long (); 266 #endif 267 ret += test_null (); 268 ret += test_sizet (); 269 return ret; 270 } 271
Indexes created Sat Feb 28 05:31:39 UTC 2026