about summary refs log tree commit diff
path: root/debug/poll_chk.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@gmail.com>2012-01-08 11:55:32 -0500
committerUlrich Drepper <drepper@gmail.com>2012-01-08 11:55:32 -0500
commitd9a216c037590c414e4069afde01fde84794e0d6 (patch)
tree0c4cbf65be6c1a788741977cbd383def08406a78 /debug/poll_chk.c
parent15cfed3f93f60e79508043047065f189754f8e35 (diff)
downloadglibc-d9a216c037590c414e4069afde01fde84794e0d6.tar.gz
glibc-d9a216c037590c414e4069afde01fde84794e0d6.tar.xz
glibc-d9a216c037590c414e4069afde01fde84794e0d6.zip
Add checking versions of poll and ppoll
Diffstat (limited to 'debug/poll_chk.c')
-rw-r--r--debug/poll_chk.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/debug/poll_chk.c b/debug/poll_chk.c
new file mode 100644
index 0000000000..df795e8ae9
--- /dev/null
+++ b/debug/poll_chk.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2012 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 <sys/poll.h>
+
+
+int
+__poll_chk (struct pollfd *fds, nfds_t nfds, int timeout, __SIZE_TYPE__ fdslen)
+{
+  if (fdslen / sizeof (*fds) < nfds)
+    __chk_fail ();
+
+  return __poll (fds, nfds, timeout);
+}