#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/select.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <signal.h>

char buf[1024];

int main()
{
  int fd, conn;
  struct sockaddr_in addr;
  socklen_t size;

  /* get socket to client, listening on 9999 */

  fd = socket (PF_INET, SOCK_STREAM, 0);
  if ( -1 == fd) {
    perror ("socket");
    exit (1);
  }

  addr.sin_family = AF_INET;
  addr.sin_addr.s_addr = htonl (INADDR_ANY);
  addr.sin_port = htons(9999);
  if (bind (fd, (struct sockaddr*)&addr, sizeof (struct sockaddr_in)) != 0) {
    perror ("bind");
    exit (1);
  }

  if (-1 == listen (fd, 1)) {
    perror ("listen");
    exit (1);
  }

  if (-1 == (conn = accept(fd, (struct sockaddr*)&addr, &size))) {
    perror ("accept");
    exit (1);
  }

  /* send some info */

  if (write (conn, "Hello client !\n", 15) == -1) {
    perror ("write");
    exit (1);
  }

  /* finish */

  if (-1 == shutdown (conn, SHUT_RDWR)) {
    perror ("shutdown");
    exit (1);
  }

  return 0;
}