/***** stream socket example: server.c *****/ 
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>      /* UNIX domain header */

int main()
{ int soc, ns, k;
  char buf[256];
  struct sockaddr_un self = {AF_UNIX, "serversoc"}; 
  struct sockaddr_un peer = {AF_UNIX}; 
  int peer_len = sizeof(peer);
  /* set up listening socket soc */
      soc = socket(AF_UNIX, SOCK_STREAM, 0);   /* (1) */
      if (soc < 0)
      {  perror("server:socket"); exit(1);
      }
      if (bind(soc, &self, sizeof(self)) == -1)/* (2) */
      {  perror("server:bind"); close(soc);
         exit(1); 
      }
      listen(soc, 1);                          /* (3) */
  /* accept connection request */
      ns = accept(soc, &peer, &peer_len);      /* (4) */
      if (ns < 0)
      {  perror("server:accept"); close(soc);
         unlink(self.sun_path);     exit(1);
      }
  /* data transfer on connected socket ns */
      k = read(ns, buf, sizeof(buf));          /* (5) */
      printf("SERVER RECEIVED: %s\n", buf);
      write(ns, buf, k);                       /* (6) */
      close(ns);   close(soc);
      unlink(self.sun_path); return(0);
}
/***** end of server.c *****/