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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libutil/] [forkpty.c] - Rev 1771

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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;
    }
}
 

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