common/t-convert.c

   1 /* t-convert.c - Module test for convert.c
   2  *      Copyright (C) 2006, 2008 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <assert.h>
  24
  25 #include "util.h"
  26
  27 #define pass()  do { ; } while(0)
  28 #define fail(a)  do { fprintf (stderr, "%s:%d: test %d failed\n",\
  29                                __FILE__,__LINE__, (a));          \
  30                      exit (1);                                   \
  31                    } while(0)
  32
  33
  34 static void
  35 test_hex2bin (void)
  36 {
  37   static const char *valid[] = {
  38     "00112233445566778899aabbccddeeff11223344",
  39     "00112233445566778899AABBCCDDEEFF11223344",
  40     "00112233445566778899AABBCCDDEEFF11223344 blah",
  41     "00112233445566778899AABBCCDDEEFF11223344\tblah",
  42     "00112233445566778899AABBCCDDEEFF11223344\nblah",
  43     NULL
  44   };
  45   static const char *invalid[] = {
  46     "00112233445566778899aabbccddeeff1122334",
  47     "00112233445566778899AABBCCDDEEFF1122334",
  48     "00112233445566778899AABBCCDDEEFG11223344",
  49     "00 112233445566778899aabbccddeeff11223344",
  50     "00:112233445566778899aabbccddeeff11223344",
  51     ":00112233445566778899aabbccddeeff11223344",
  52     "0:0112233445566778899aabbccddeeff11223344",
  53     "00112233445566778899aabbccddeeff11223344:",
  54     "00112233445566778899aabbccddeeff112233445",
  55     "00112233445566778899aabbccddeeff1122334455",
  56     "00112233445566778899aabbccddeeff11223344blah",
  57     NULL
  58   };
  59   static const char *valid2[] = {
  60     "00",
  61     "00 x",
  62     NULL
  63   };
  64   static const char *invalid2[] = {
  65     "",
  66     "0",
  67     "00:",
  68     "00x",
  69     " 00",
  70     NULL
  71   };
  72   unsigned char buffer[20];
  73   int len;
  74   int i;
  75
  76
  77   for (i=0; valid[i]; i++)
  78     {
  79       len = hex2bin (valid[i], buffer, sizeof buffer);
  80       if (len < 0)
  81         fail (i);
  82       if (memcmp (buffer, ("\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa"
  83                            "\xbb\xcc\xdd\xee\xff\x11\x22\x33\x44"), 20))
  84           fail (i);
  85     }
  86   if (hex2bin (valid[0], buffer, sizeof buffer) != 40)
  87     fail (0);
  88   if (hex2bin (valid[2], buffer, sizeof buffer) != 41)
  89     fail (0);
  90
  91   for (i=0; invalid[i]; i++)
  92     {
  93       len = hex2bin (invalid[i], buffer, sizeof buffer);
  94       if (!(len < 0))
  95         fail (i);
  96     }
  97
  98   for (i=0; valid2[i]; i++)
  99     {
 100       len = hex2bin (valid2[i], buffer, 1);
 101       if (len < 0)
 102         fail (i);
 103       if (memcmp (buffer, "\x00", 1))
 104         fail (i);
 105     }
 106   if (hex2bin (valid2[0], buffer, 1) != 2)
 107     fail (0);
 108   if (hex2bin (valid2[1], buffer, 1) != 3)
 109     fail (0);
 110
 111   for (i=0; invalid2[i]; i++)
 112     {
 113       len = hex2bin (invalid2[i], buffer, 1);
 114       if (!(len < 0))
 115         fail (i);
 116     }
 117 }
 118
 119
 120
 121 static void
 122 test_hexcolon2bin (void)
 123 {
 124   static const char *valid[] = {
 125     "00112233445566778899aabbccddeeff11223344",
 126     "00112233445566778899AABBCCDDEEFF11223344",
 127     "00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 128     "00112233445566778899AABBCCDDEEFF11223344 blah",
 129     "00112233445566778899AABBCCDDEEFF11223344\tblah",
 130     "00112233445566778899AABBCCDDEEFF11223344\nblah",
 131     NULL
 132   };
 133   static const char *invalid[] = {
 134     "00112233445566778899aabbccddeeff1122334",
 135     "00112233445566778899AABBCCDDEEFF1122334",
 136     "00112233445566778899AABBCCDDEEFG11223344",
 137     ":00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 138     "00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44:",
 139     "00:11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:3344",
 140     "00:1122:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 141     "0011:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 142     "00 11:22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 143     "00:11 22:33:44:55:66:77:88:99:aa:bb:cc:dd:ee:ff:11:22:33:44",
 144     "00112233445566778899aabbccddeeff112233445",
 145     "00112233445566778899aabbccddeeff1122334455",
 146     "00112233445566778899aabbccddeeff11223344blah",
 147     NULL
 148   };
 149   static const char *valid2[] = {
 150     "00",
 151     "00 x",
 152     NULL
 153   };
 154   static const char *invalid2[] = {
 155     "",
 156     "0",
 157     "00:",
 158     ":00",
 159     "0:0",
 160     "00x",
 161     " 00",
 162     NULL
 163   };
 164   unsigned char buffer[20];
 165   int len;
 166   int i;
 167
 168
 169   for (i=0; valid[i]; i++)
 170     {
 171       len = hexcolon2bin (valid[i], buffer, sizeof buffer);
 172       if (len < 0)
 173         fail (i);
 174       if (memcmp (buffer, ("\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa"
 175                            "\xbb\xcc\xdd\xee\xff\x11\x22\x33\x44"), 20))
 176           fail (i);
 177     }
 178   if (hexcolon2bin (valid[0], buffer, sizeof buffer) != 40)
 179     fail (0);
 180   if (hexcolon2bin (valid[3], buffer, sizeof buffer) != 41)
 181     fail (0);
 182
 183   for (i=0; invalid[i]; i++)
 184     {
 185       len = hexcolon2bin (invalid[i], buffer, sizeof buffer);
 186       if (!(len < 0))
 187         fail (i);
 188     }
 189
 190   for (i=0; valid2[i]; i++)
 191     {
 192       len = hexcolon2bin (valid2[i], buffer, 1);
 193       if (len < 0)
 194         fail (i);
 195       if (memcmp (buffer, "\x00", 1))
 196         fail (i);
 197     }
 198   if (hexcolon2bin (valid2[0], buffer, 1) != 2)
 199     fail (0);
 200   if (hexcolon2bin (valid2[1], buffer, 1) != 3)
 201     fail (0);
 202
 203   for (i=0; invalid2[i]; i++)
 204     {
 205       len = hexcolon2bin (invalid2[i], buffer, 1);
 206       if (!(len < 0))
 207         fail (i);
 208     }
 209
 210
 211 }
 212
 213
 214
 215 static void
 216 test_bin2hex (void)
 217 {
 218   char stuff[20+1] = ("\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa"
 219                       "\xbb\xcc\xdd\xee\xff\x01\x10\x02\xa3");
 220   char hexstuff[] = "00112233445566778899AABBCCDDEEFF011002A3";
 221   char buffer[2*20+1];
 222   char *p;
 223
 224   p = bin2hex (stuff, 20, buffer);
 225   if (!p)
 226     fail (0);
 227   if (p != buffer)
 228     fail (0);
 229   if (strcmp (buffer, hexstuff))
 230     fail (0);
 231
 232   p = bin2hex (stuff, 20, NULL);
 233   if (!p)
 234     fail (0);
 235   if (strcmp (p, hexstuff))
 236     fail (0);
 237
 238   p = bin2hex (stuff, (size_t)(-1), NULL);
 239   if (p)
 240     fail (0);
 241   if (errno != ENOMEM)
 242     fail (1);
 243 }
 244
 245
 246 static void
 247 test_bin2hexcolon (void)
 248 {
 249   char stuff[20+1] = ("\x00\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa"
 250                       "\xbb\xcc\xdd\xee\xff\x01\x10\x02\xa3");
 251   char hexstuff[] = ("00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF"
 252                      ":01:10:02:A3");
 253   char buffer[3*20+1];
 254   char *p;
 255
 256   p = bin2hexcolon (stuff, 20, buffer);
 257   if (!p)
 258     fail (0);
 259   if (p != buffer)
 260     fail (0);
 261   if (strcmp (buffer, hexstuff))
 262     fail (0);
 263
 264   p = bin2hexcolon (stuff, 20, NULL);
 265   if (!p)
 266     fail (0);
 267   if (strcmp (p, hexstuff))
 268     fail (0);
 269
 270   p = bin2hexcolon (stuff, (size_t)(-1), NULL);
 271   if (p)
 272     fail (0);
 273   if (errno != ENOMEM)
 274     fail (1);
 275 }
 276
 277
 278
 279 static void
 280 test_hex2str (void)
 281 {
 282   static struct {
 283     const char *hex;
 284     const char *str;
 285     int off;
 286     int no_alloc_test;
 287   } tests[] = {
 288     /* Simple tests.  */
 289     { "112233445566778899aabbccddeeff1122",
 290       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 291       34 },
 292     { "112233445566778899aabbccddeeff1122 blah",
 293       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 294       34 },
 295     { "112233445566778899aabbccddeeff1122\tblah",
 296       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 297       34 },
 298     { "112233445566778899aabbccddeeff1122\nblah",
 299       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 300       34 },
 301     /* Valid tests yielding an empty string.  */
 302     { "00",
 303       "",
 304       2 },
 305     { "00 x",
 306       "",
 307       2 },
 308     { "",
 309       "",
 310       0 },
 311     { " ",
 312       "",
 313       0 },
 314     /* Test trailing Nul feature.  */
 315     { "112233445566778899aabbccddeeff112200",
 316       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 317       36 },
 318     { "112233445566778899aabbccddeeff112200 ",
 319       "\x11\x22\x33\x44\x55\x66\x77\x88\x99\xaa\xbb\xcc\xdd\xee\xff\x11\x22",
 320       36 },
 321     /* Test buffer size. (buffer is of length 20)  */
 322     { "6162636465666768696A6b6c6D6e6f70717273",
 323       "abcdefghijklmnopqrs",
 324       38 },
 325     { "6162636465666768696A6b6c6D6e6f7071727300",
 326       "abcdefghijklmnopqrs",
 327       40 },
 328     { "6162636465666768696A6b6c6D6e6f7071727374",
 329       NULL,
 330       0, 1 },
 331     { "6162636465666768696A6b6c6D6e6f707172737400",
 332       NULL,
 333       0, 1 },
 334     { "6162636465666768696A6b6c6D6e6f707172737475",
 335       NULL,
 336       0, 1 },
 337
 338     /* Invalid tests. */
 339     { "112233445566778899aabbccddeeff1122334",      NULL, 0 },
 340     { "112233445566778899AABBCCDDEEFF1122334",      NULL, 0 },
 341     { "112233445566778899AABBCCDDEEFG11223344",     NULL, 0 },
 342     { "0:0112233445566778899aabbccddeeff11223344",  NULL, 0 },
 343     { "112233445566778899aabbccddeeff11223344:",    NULL, 0 },
 344     { "112233445566778899aabbccddeeff112233445",    NULL, 0 },
 345     { "112233445566778899aabbccddeeff1122334455",   NULL, 0, 1 },
 346     { "112233445566778899aabbccddeeff11223344blah", NULL, 0 },
 347     { "0",    NULL, 0 },
 348     { "00:",  NULL, 0 },
 349     { "00x",  NULL, 0 },
 350
 351     { NULL, NULL, 0 }
 352   };
 353
 354   int idx;
 355   char buffer[20];
 356   const char *tail;
 357   size_t count;
 358   char *result;
 359
 360   for (idx=0; tests[idx].hex; idx++)
 361     {
 362       tail = hex2str (tests[idx].hex, buffer, sizeof buffer, &count);
 363       if (tests[idx].str)
 364         {
 365           /* Good case test.  */
 366           if (!tail)
 367             fail (idx);
 368           else if (strcmp (tests[idx].str, buffer))
 369             fail (idx);
 370           else if (tail - tests[idx].hex != tests[idx].off)
 371             fail (idx);
 372           else if (strlen (buffer) != count)
 373             fail (idx);
 374         }
 375       else
 376         {
 377           /* Bad case test.  */
 378           if (tail)
 379             fail (idx);
 380         }
 381     }
 382
 383   /* Same tests again using in-place conversion.  */
 384   for (idx=0; tests[idx].hex; idx++)
 385     {
 386       char tmpbuf[100];
 387
 388       assert (strlen (tests[idx].hex)+1 < sizeof tmpbuf);
 389       strcpy (tmpbuf, tests[idx].hex);
 390
 391       /* Note: we still need to use 20 as buffer length because our
 392          tests assume that. */
 393       tail = hex2str (tmpbuf, tmpbuf, 20, &count);
 394       if (tests[idx].str)
 395         {
 396           /* Good case test.  */
 397           if (!tail)
 398             fail (idx);
 399           else if (strcmp (tests[idx].str, tmpbuf))
 400             fail (idx);
 401           else if (tail - tmpbuf != tests[idx].off)
 402             fail (idx);
 403           else if (strlen (tmpbuf) != count)
 404             fail (idx);
 405         }
 406       else
 407         {
 408           /* Bad case test.  */
 409           if (tail)
 410             fail (idx);
 411           if (strcmp (tmpbuf, tests[idx].hex))
 412             fail (idx); /* Buffer was modified.  */
 413         }
 414     }
 415
 416   /* Test the allocation variant.  */
 417   for (idx=0; tests[idx].hex; idx++)
 418     {
 419       if (tests[idx].no_alloc_test)
 420         continue;
 421
 422       result = hex2str_alloc (tests[idx].hex, &count);
 423       if (tests[idx].str)
 424         {
 425           /* Good case test.  */
 426           if (!result)
 427             fail (idx);
 428           else if (strcmp (tests[idx].str, result))
 429             fail (idx);
 430           else if (count != tests[idx].off)
 431             fail (idx);
 432         }
 433       else
 434         {
 435           /* Bad case test.  */
 436           if (result)
 437             fail (idx);
 438         }
 439       xfree (result);
 440     }
 441 }
 442
 443
 444
 445
 446
 447 int
 448 main (int argc, char **argv)
 449 {
 450   (void)argc;
 451   (void)argv;
 452
 453   test_hex2bin ();
 454   test_hexcolon2bin ();
 455   test_bin2hex ();
 456   test_bin2hexcolon ();
 457   test_hex2str ();
 458
 459   return 0;
 460 }
 461