manual/examples/mkisock.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <sys/socket.h>
   4 #include <netinet/in.h>
   5
   6 int
   7 make_socket (uint16_t port)
   8 {
   9   int sock;
  10   struct sockaddr_in name;
  11
  12   /* Create the socket. */
  13   sock = socket (PF_INET, SOCK_STREAM, 0);
  14   if (sock < 0)
  15     {
  16       perror ("socket");
  17       exit (EXIT_FAILURE);
  18     }
  19
  20   /* Give the socket a name. */
  21   name.sin_family = AF_INET;
  22   name.sin_port = htons (port);
  23   name.sin_addr.s_addr = htonl (INADDR_ANY);
  24   if (bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0)
  25     {
  26       perror ("bind");
  27       exit (EXIT_FAILURE);
  28     }
  29
  30   return sock;
  31 }