mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/* Copyright (C) 1998-2019 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stropts.h>
|
|
|
|
int
|
|
isastream (int fildes)
|
|
{
|
|
/* In general we do not have a STREAMS implementation and therefore
|
|
return 0. But for invalid file descriptors we have to return an
|
|
error. */
|
|
if (__fcntl (fildes, F_GETFD) < 0)
|
|
return -1;
|
|
|
|
/* No STREAM. */
|
|
return 0;
|
|
}
|