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/* Copyright (C) 1998 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Library General Public License as

   published by the Free Software Foundation; either version 2 of the

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

   The GNU C Library 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

   Library General Public License for more details.

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

   License along with the GNU C Library; see the file COPYING.LIB.  If not,

   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include <sys/types.h>

#include <termios.h>

#include <unistd.h>

#include <utmp.h>

#include <pty.h>

int forkpty (int *amaster, char *name,

        struct termios *termp, struct winsize *winp)

{

    int master, slave, pid;

    if (openpty (&master, &slave, name, termp, winp) == -1)

        return -1;

    switch (pid = fork ())

    {

        case -1:

            return -1;

        case 0:

            /* Child.  */

            close (master);

            if (login_tty (slave))

                _exit (1);

            return 0;

        default:

            /* Parent.  */

            *amaster = master;

            close (slave);

            return pid;

    }

}