/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   reserve_port.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: jhalford <jack@crans.org>                  +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/10/07 18:02:55 by jhalford          #+#    #+#             */
/*   Updated: 2017/10/07 18:03:15 by jhalford         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "net.h"

int	reserve_port(int *port)
{
	struct sockaddr_in	sa;
	int					sockfd;
	unsigned short		i;

	if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
		return (1);
	sa.sin_family = AF_INET;
	sa.sin_addr.s_addr = INADDR_ANY;
	i = 49152;
	while (i < 65535)
	{
		sa.sin_port = htons(i);
		if (bind(sockfd, (struct sockaddr*)&sa, sizeof(sa)) == 0)
		{
			*port = i;
			return (0);
		}
		++i;
	}
	return (1);
}