opt/pflana.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <signal.h>
   4 #include <sys/socket.h>
   5
   6 #define AF_LANA         27
   7
   8 static sig_atomic_t sigint = 0;
   9
  10 static void intr(int sig)
  11 {
  12         sigint = 1;
  13 }
  14
  15 static inline void register_signal(int signal, void (*handler)(int))
  16 {
  17         sigset_t block_mask;
  18         struct sigaction saction;
  19
  20         sigfillset(&block_mask);
  21         saction.sa_handler = handler;
  22         saction.sa_mask = block_mask;
  23         saction.sa_flags = SA_RESTART;
  24
  25         sigaction(signal, &saction, NULL);
  26 }
  27
  28 int main(void)
  29 {
  30         int sock;
  31         register_signal(SIGINT, intr);
  32         sock = socket(AF_LANA, SOCK_STREAM, 0);
  33         if (sock < 0) {
  34                 perror("socket");
  35                 return 0;
  36         }
  37
  38         printf("Worked! Abort with ^C\n");
  39         while (!sigint);
  40
  41         close(sock);
  42         return 0;
  43 }
  44