glibc/login/forkpty.c
Jakub Jelinek 00d2692952 [BZ #4813]
* login/forkpty.c (forkpty): Close master and slave fds on 
fork failure.  Patch by 
Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>.
2007-07-20  Jakub Jelinek  <jakub@redhat.com>

	[BZ #4813]
	* login/forkpty.c (forkpty): Close master and slave fds on
	fork failure.  Patch by
	Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>.
2007-07-20 07:20:07 +00:00

59 lines
1.5 KiB
C

/* Copyright (C) 1998, 2007 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; 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 (amaster, name, termp, winp)
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:
close (master);
close (slave);
return -1;
case 0:
/* Child. */
close (master);
if (login_tty (slave))
_exit (1);
return 0;
default:
/* Parent. */
*amaster = master;
close (slave);
return pid;
}
}