glibc/sysdeps/standalone/close.c
1995-02-18 01:27:10 +00:00

45 lines
1.3 KiB
C

/* Copyright (C) 1994, 1995 Free Software Foundation, Inc.
Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
On-Line Applications Research Corporation.
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 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <unistd.h>
#include <stdio_lim.h>
#include "filedesc.h"
/* Close the file descriptor FD. */
int
DEFUN(__close, (fd), int fd)
{
if ( !__FD_Is_valid( fd ) || !__FD_Table[ fd ].in_use )
{
errno = EBADF;
return -1;
}
__FD_Table[ fd ].in_use = 0;
return 0;
}
weak_alias (__close, close)