ntoa.c

   1 #include <stdio.h>
   2 #include <sys/types.h>
   3 #include <netinet/in.h>
   4 #include <arpa/inet.h>
   5
   6
   7 main()
   8 {
   9         struct in_addr ip;
  10
  11         ip.s_addr = 0x12345678;
  12
  13         if (strcmp(inet_ntoa(ip),"18.52.86.120") != 0 &&
  14             strcmp(inet_ntoa(ip),"120.86.52.18") != 0) {
  15                 fprintf(stderr,"broken inet_ntoa\n");
  16                 exit(0);
  17         }
  18
  19         /* not a broken inet_ntoa */
  20         exit(1);
  21 }