resolv/tst-aton.c

   1 #include <stdio.h>
   2 #include <stdint.h>
   3 #include <sys/socket.h>
   4 #include <netinet/in.h>
   5 #include <arpa/inet.h>
   6
   7
   8 static struct tests
   9 {
  10   const char *input;
  11   int valid;
  12   uint32_t result;
  13 } tests[] =
  14 {
  15   { "", 0, 0 },
  16   { "-1", 0, 0 },
  17   { "256", 1, 0x00000100 },
  18   { "256.", 0, 0 },
  19   { "256a", 0, 0 },
  20   { "0x100", 1, 0x00000100 },
  21   { "0200.0x123456", 1, 0x80123456 },
  22   { "0300.0x89123456.", 0 ,0 },
  23   { "0100.-0xffff0000", 0, 0 },
  24   { "0.0xffffff", 1, 0x00ffffff },
  25   { "0.0x1000000", 0, 0 },
  26   { "0377.16777215", 1, 0xffffffff },
  27   { "0377.16777216", 0, 0 },
  28   { "0x87.077777777", 1, 0x87ffffff },
  29   { "0x87.0100000000", 0, 0 },
  30   { "0.1.3", 1, 0x00010003 },
  31   { "0.256.3", 0, 0 },
  32   { "256.1.3", 0, 0 },
  33   { "0.1.0x10000", 0, 0 },
  34   { "0.1.0xffff", 1, 0x0001ffff },
  35   { "0.1a.3", 0, 0 },
  36   { "0.1.a3", 0, 0 },
  37   { "1.2.3.4", 1, 0x01020304 },
  38   { "0400.2.3.4", 0, 0 },
  39   { "1.0x100.3.4", 0, 0 },
  40   { "1.2.256.4", 0, 0 },
  41   { "1.2.3.0x100", 0, 0 },
  42   { "323543357756889", 0, 0 },
  43   { "10.1.2.3.4", 0, 0},
  44 };
  45
  46
  47 int
  48 main (int argc, char *argv[])
  49 {
  50   int result = 0;
  51   size_t cnt;
  52
  53   for (cnt = 0; cnt < sizeof (tests) / sizeof (tests[0]); ++cnt)
  54     {
  55       struct in_addr addr;
  56
  57       if ((int) inet_aton (tests[cnt].input, &addr) != tests[cnt].valid)
  58         {
  59           if (tests[cnt].valid)
  60             printf ("\"%s\" not seen as valid IP address\n", tests[cnt].input);
  61           else
  62             printf ("\"%s\" seen as valid IP address\n", tests[cnt].input);
  63           result = 1;
  64         }
  65       else if (tests[cnt].valid && addr.s_addr != ntohl (tests[cnt].result))
  66         {
  67           printf ("\"%s\" not converted correctly: is %08x, should be %08x\n",
  68                   tests[cnt].input, addr.s_addr, tests[cnt].result);
  69           result = 1;
  70         }
  71     }
  72
  73   return result;
  74 }