aboutsummaryrefslogtreecommitdiffstats
path: root/streams/isastream.c
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /streams/isastream.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
downloadtermbaud-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.gz
termbaud-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.tar.xz
termbaud-0ecb606cb6cf65de1d9fc8a919bceb4be476c602.zip
2.5-18.1
Diffstat (limited to 'streams/isastream.c')
-rw-r--r--streams/isastream.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/streams/isastream.c b/streams/isastream.c
new file mode 100644
index 00000000000..88dae299fca
--- /dev/null
+++ b/streams/isastream.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1998 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 <fcntl.h>
+#include <stropts.h>
+
+int
+isastream (fildes)
+ 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;
+}