resolv/tst-aton.c

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