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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)
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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
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--- /dev/null
+++ b/debug/poll_chk.c
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+/* 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);
+}