1: #include <stdio.h>
    2: #include <string.h>
    3: #include <arpa/inet.h>
    4: #include <netinet/in.h>
    5: 
    6: 
    7: static int
    8: test (unsigned int inaddr, const char *expected)
    9: {
   10:   struct in_addr addr;
   11:   char *res;
   12:   int fail;
   13: 
   14:   addr.s_addr = htonl (inaddr);
   15:   res = inet_ntoa (addr);
   16:   fail = strcmp (res, expected);
   17: 
   18:   printf ("%#010x -> \"%s\" -> %s%s\n", inaddr, res,
   19:           fail ? "fail, expected" : "ok", fail ? expected : "");
   20: 
   21:   return fail;
   22: }
   23: 
   24: 
   25: int
   26: main (void)
   27: {
   28:   int result = 0;
   29: 
   30:   result |= test (INADDR_LOOPBACK, "127.0.0.1");
   31:   result |= test (INADDR_BROADCAST, "255.255.255.255");
   32:   result |= test (INADDR_ANY, "0.0.0.0");
   33:   result |= test (0xc0060746, "192.6.7.70");
   34: 
   35:   return result;
   36: }