/* Internet Socket Example

   Copyright (C) 1991-2018 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or

   modify it under the terms of the GNU General Public License

   as published by the Free Software Foundation; either version 2

   of the License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, if not, see <http://www.gnu.org/licenses/>.

*/

#include <stdio.h>

#include <stdlib.h>

#include <sys/socket.h>

#include <netinet/in.h>

int

make_socket (uint16_t port)

{

  int sock;

  struct sockaddr_in name;

  /* Create the socket. */

  sock = socket (PF_INET, SOCK_STREAM, 0);

  if (sock < 0)

    {

      perror ("socket");

      exit (EXIT_FAILURE);

    }

  /* Give the socket a name. */

  name.sin_family = AF_INET;

  name.sin_port = htons (port);

  name.sin_addr.s_addr = htonl (INADDR_ANY);

  if (bind (sock, (struct sockaddr *) &name, sizeof (name)) < 0)

    {

      perror ("bind");

      exit (EXIT_FAILURE);

    }

  return sock;

}