| /* Copyright (C) 1991, 1995, 1996, 2002, 2008 Free Software Foundation, Inc. | 
 |    This file is part of the GNU C Library. | 
 |  | 
 |    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 <errno.h> | 
 | #include <unistd.h> | 
 | #include <stddef.h> | 
 |  | 
 | /* Create a one-way communication channel (__pipe).  If successful, | 
 |    two file descriptors are stored in PIPEDES; bytes written on | 
 |    PIPEDES[1] can be read from PIPEDES[0]. */ | 
 | int __pipe(int __pipedes[2]) | 
 | { | 
 | 	if (__pipedes == NULL) { | 
 | 		__set_errno (EINVAL); | 
 | 		return -1; | 
 | 	} | 
 | 	return __pipe2(__pipedes, 0); | 
 | } | 
 | libc_hidden_def (__pipe) | 
 | weak_alias (__pipe, pipe) |