resolv/tst-aton.c

   1 /* Test legacy IPv4 text-to-address function inet_aton.
   2    Copyright (C) 1998-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <array_length.h>
  20 #include <stdio.h>
  21 #include <stdint.h>
  22 #include <sys/socket.h>
  23 #include <netinet/in.h>
  24 #include <arpa/inet.h>
  25
  26 static const struct tests
  27 {
  28   const char *input;
  29   int valid;
  30   uint32_t result;
  31 } tests[] =
  32 {
  33   { "", 0, 0 },
  34   { "-1", 0, 0 },
  35   { "256", 1, 0x00000100 },
  36   { "256.", 0, 0 },
  37   { "255a", 0, 0 },
  38   { "256a", 0, 0 },
  39   { "0x100", 1, 0x00000100 },
  40   { "0200.0x123456", 1, 0x80123456 },
  41   { "0300.0x89123456.", 0 ,0 },
  42   { "0100.-0xffff0000", 0, 0 },
  43   { "0.0xffffff", 1, 0x00ffffff },
  44   { "0.0x1000000", 0, 0 },
  45   { "0377.16777215", 1, 0xffffffff },
  46   { "0377.16777216", 0, 0 },
  47   { "0x87.077777777", 1, 0x87ffffff },
  48   { "0x87.0100000000", 0, 0 },
  49   { "0.1.3", 1, 0x00010003 },
  50   { "0.256.3", 0, 0 },
  51   { "256.1.3", 0, 0 },
  52   { "0.1.0x10000", 0, 0 },
  53   { "0.1.0xffff", 1, 0x0001ffff },
  54   { "0.1a.3", 0, 0 },
  55   { "0.1.a3", 0, 0 },
  56   { "1.2.3.4", 1, 0x01020304 },
  57   { "0400.2.3.4", 0, 0 },
  58   { "1.0x100.3.4", 0, 0 },
  59   { "1.2.256.4", 0, 0 },
  60   { "1.2.3.0x100", 0, 0 },
  61   { "323543357756889", 0, 0 },
  62   { "10.1.2.3.4", 0, 0 },
  63   { "192.0.2.1", 1, 0xc0000201 },
  64   { "192.0.2.2\nX", 1, 0xc0000202 },
  65   { "192.0.2.3 Y", 1, 0xc0000203 },
  66   { "192.0.2.3Z", 0, 0 },
  67   { "192.000.002.010", 1, 0xc0000208 },
  68 };
  69
  70
  71 static int
  72 do_test (void)
  73 {
  74   int result = 0;
  75   size_t cnt;
  76
  77   for (cnt = 0; cnt < array_length (tests); ++cnt)
  78     {
  79       struct in_addr addr;
  80
  81       if ((int) inet_aton (tests[cnt].input, &addr) != tests[cnt].valid)
  82         {
  83           if (tests[cnt].valid)
  84             printf ("\"%s\" not seen as valid IP address\n", tests[cnt].input);
  85           else
  86             printf ("\"%s\" seen as valid IP address\n", tests[cnt].input);
  87           result = 1;
  88         }
  89       else if (tests[cnt].valid && addr.s_addr != ntohl (tests[cnt].result))
  90         {
  91           printf ("\"%s\" not converted correctly: is %08x, should be %08x\n",
  92                   tests[cnt].input, addr.s_addr, tests[cnt].result);
  93           result = 1;
  94         }
  95     }
  96
  97   return result;
  98 }
  99
 100 #include <support/test-driver.c>