1  #include <netdb.h>
       2  #include <stdio.h>
       3  #include <sys/socket.h>
       4  
       5  static int
       6  do_test (void)
       7  {
       8    int retval = 0;
       9  
      10    struct sockaddr_in s;
      11    s.sin_family = AF_INET;
      12    s.sin_port = 80;
      13    s.sin_addr.s_addr = INADDR_LOOPBACK;
      14    int r = getnameinfo((struct sockaddr *) &s, sizeof (s), NULL, 0, NULL, 0,
      15  		      NI_NUMERICHOST | NI_NUMERICSERV);
      16    printf("r = %d\n", r);
      17    if (r != 0)
      18      {
      19        puts ("failed without NI_NAMEREQD");
      20        retval = 1;
      21      }
      22  
      23    r = getnameinfo((struct sockaddr *) &s, sizeof (s), NULL, 0, NULL, 0,
      24  		  NI_NUMERICHOST | NI_NUMERICSERV | NI_NAMEREQD);
      25    printf("r = %d\n", r);
      26    if (r != EAI_NONAME)
      27      {
      28        puts ("did not fail with EAI_NONAME with NI_NAMEREQD set");
      29        retval = 1;
      30      }
      31  
      32    return retval;
      33  }
      34  
      35  #define TEST_FUNCTION do_test ()
      36  #include "../test-skeleton.c"