/*
 * Copyright (c) 2016 Jonas 'Sortie' Termansen.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * termios/openpty.c
 * Create and open a pseudoterminal.
 */

#include <sys/ioctl.h>

#include <pty.h>
#include <string.h>
#include <termios.h>

int openpty(int* masterfd,
            int* slavefd,
            char* name,
            const struct termios* tio,
            const struct winsize* ws)
{
	if ( mkpty(masterfd, slavefd, 0) < 0 )
		return -1;
	if ( name )
	{
		memcpy(name, "/dev/", 5);
		ioctl(*masterfd, TIOCGNAME, name + 5);
	}
	if ( tio )
		tcsetattr(*slavefd, TCSANOW, tio);
	if ( ws )
		ioctl(*masterfd, TIOCSWINSZ, ws);
	return 0;
}
