lib/roken/snprintf-test.c

   1 /*
   2  * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
  32
  33 #ifdef HAVE_CONFIG_H
  34 #include <config.h>
  35 #endif
  36 #include "snprintf-test.h"
  37 #include "roken.h"
  38 #include <limits.h>
  39
  40 RCSID("$Id$");
  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 = 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) -1, LONG_MIN, -17, -1,
 141         0,
 142         1, 17, 4711, 65535, LONG_MAX, ((long long)LONG_MAX) + 1};
 143     int i;
 144
 145     for (i = 0; i < sizeof(long_long_values) / sizeof(long_long_values[0]); ++i) {
 146         tot += try ("%lld", long_long_values[i]);
 147         tot += try ("%llx", long_long_values[i]);
 148         tot += try ("%llX", long_long_values[i]);
 149         tot += try ("%llo", long_long_values[i]);
 150         tot += try ("%#llx", long_long_values[i]);
 151         tot += try ("%#llX", long_long_values[i]);
 152         tot += try ("%#llo", long_long_values[i]);
 153         tot += try ("%10lld", long_long_values[i]);
 154         tot += try ("%10llx", long_long_values[i]);
 155         tot += try ("%10llX", long_long_values[i]);
 156         tot += try ("%10llo", long_long_values[i]);
 157         tot += try ("%#10llx", long_long_values[i]);
 158         tot += try ("%#10llX", long_long_values[i]);
 159         tot += try ("%#10llo", long_long_values[i]);
 160         tot += try ("%-10lld", long_long_values[i]);
 161         tot += try ("%-10llx", long_long_values[i]);
 162         tot += try ("%-10llX", long_long_values[i]);
 163         tot += try ("%-10llo", long_long_values[i]);
 164         tot += try ("%-#10llx", long_long_values[i]);
 165         tot += try ("%-#10llX", long_long_values[i]);
 166         tot += try ("%-#10llo", long_long_values[i]);
 167     }
 168     return tot;
 169 }
 170
 171 #endif
 172
 173 #if 0
 174 static int
 175 cmp_with_sprintf_float (void)
 176 {
 177     int tot = 0;
 178     double double_values[] = {-99999, -999, -17.4, -4.3, -3.0, -1.5, -1,
 179                               0, 0.1, 0.2342374852, 0.2340007,
 180                               3.1415926, 14.7845, 34.24758, 9999, 9999999};
 181     int i;
 182
 183     for (i = 0; i < sizeof(double_values) / sizeof(double_values[0]); ++i) {
 184         tot += try ("%f", double_values[i]);
 185         tot += try ("%10f", double_values[i]);
 186         tot += try ("%.2f", double_values[i]);
 187         tot += try ("%7.0f", double_values[i]);
 188         tot += try ("%5.2f", double_values[i]);
 189         tot += try ("%0f", double_values[i]);
 190         tot += try ("%#f", double_values[i]);
 191         tot += try ("%e", double_values[i]);
 192         tot += try ("%10e", double_values[i]);
 193         tot += try ("%.2e", double_values[i]);
 194         tot += try ("%7.0e", double_values[i]);
 195         tot += try ("%5.2e", double_values[i]);
 196         tot += try ("%0e", double_values[i]);
 197         tot += try ("%#e", double_values[i]);
 198         tot += try ("%E", double_values[i]);
 199         tot += try ("%10E", double_values[i]);
 200         tot += try ("%.2E", double_values[i]);
 201         tot += try ("%7.0E", double_values[i]);
 202         tot += try ("%5.2E", double_values[i]);
 203         tot += try ("%0E", double_values[i]);
 204         tot += try ("%#E", double_values[i]);
 205         tot += try ("%g", double_values[i]);
 206         tot += try ("%10g", double_values[i]);
 207         tot += try ("%.2g", double_values[i]);
 208         tot += try ("%7.0g", double_values[i]);
 209         tot += try ("%5.2g", double_values[i]);
 210         tot += try ("%0g", double_values[i]);
 211         tot += try ("%#g", double_values[i]);
 212         tot += try ("%G", double_values[i]);
 213         tot += try ("%10G", double_values[i]);
 214         tot += try ("%.2G", double_values[i]);
 215         tot += try ("%7.0G", double_values[i]);
 216         tot += try ("%5.2G", double_values[i]);
 217         tot += try ("%0G", double_values[i]);
 218         tot += try ("%#G", double_values[i]);
 219     }
 220     return tot;
 221 }
 222 #endif
 223
 224 static int
 225 test_null (void)
 226 {
 227     return snprintf (NULL, 0, "foo") != 3;
 228 }
 229
 230 static int
 231 test_sizet (void)
 232 {
 233     int tot = 0;
 234     size_t sizet_values[] = { 0, 1, 2, 200, 4294967295u }; /* SIZE_MAX */
 235     char *result[] = { "0", "1", "2", "200", "4294967295" };
 236     int i;
 237
 238     for (i = 0; i < sizeof(sizet_values) / sizeof(sizet_values[0]); ++i) {
 239 #if 0
 240         tot += try("%zu", sizet_values[i]);
 241         tot += try("%zx", sizet_values[i]);
 242         tot += try("%zX", sizet_values[i]);
 243 #else
 244         char buf[256];
 245         snprintf(buf, sizeof(buf), "%zu", sizet_values[i]);
 246         if (strcmp(buf, result[i]) != 0) {
 247             printf("%s != %s", buf, result[i]);
 248             tot++;
 249         }
 250 #endif
 251     }
 252     return tot;
 253 }
 254
 255
 256 int
 257 main (int argc, char **argv)
 258 {
 259     int ret = 0;
 260
 261     ret += cmp_with_sprintf_int ();
 262     ret += cmp_with_sprintf_long ();
 263 #ifdef HAVE_LONG_LONG
 264     ret += cmp_with_sprintf_long_long ();
 265 #endif
 266     ret += test_null ();
 267     ret += test_sizet ();
 268     return ret;
 269 }