/*
 * Secure X Message Passing Library v2 examples.
 *
 * (c) Originally written by somebody else ...
 * (c) Alexander Vdolainen 2013-2015 <avdolainen@gmail.com>
 *
 * libsxmp is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * libsxmp 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.";
 *
 * This is a simple helpers to make code more clean;
 *
 */

#include <stdio.h>
#include <dirent.h>
#define __USE_GNU
#include <stdlib.h>
#include <stdarg.h>
#include <sys/types.h>
#include <limits.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/resource.h>
#include <netdb.h>
#include <unistd.h>
#include <netinet/in.h>
#include <stdint.h>
#include <errno.h>
#include <string.h>

int openlistener_socket(int port)
{
  int sd;
  struct sockaddr_in addr;

  sd = socket(PF_INET, SOCK_STREAM, 0);
  memset(&addr, 0, sizeof(addr));

  addr.sin_family = AF_INET;
  addr.sin_port = htons(port);
  addr.sin_addr.s_addr = INADDR_ANY;

  if(bind(sd, (struct sockaddr*)&addr, sizeof(addr)) != 0) {
    perror("can't bind port");
    abort();
  }
  if(listen(sd, 10) != 0) {
    perror("Can't configure listening port");
    abort();
  }

  return sd;
}