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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
parent15cfed3f93f60e79508043047065f189754f8e35 (diff)
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Add checking versions of poll and ppoll
Diffstat (limited to 'debug')
-rw-r--r--debug/Makefile2
-rw-r--r--debug/Versions3
-rw-r--r--debug/poll_chk.c29
-rw-r--r--debug/ppoll_chk.c30
-rw-r--r--debug/tst-chk1.c19
5 files changed, 81 insertions, 2 deletions
diff --git a/debug/Makefile b/debug/Makefile
index 579fce66da..dca4e97615 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -44,7 +44,7 @@ routines = backtrace backtracesyms backtracesymsfd noophooks \
wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
vdprintf_chk obprintf_chk \
longjmp_chk ____longjmp_chk \
- fdelt_chk \
+ fdelt_chk poll_chk ppoll_chk \
stack_chk_fail fortify_fail \
$(static-only-routines)
static-only-routines := warning-nop stack_chk_fail_local
diff --git a/debug/Versions b/debug/Versions
index 3db4a2955f..c1722fab20 100644
--- a/debug/Versions
+++ b/debug/Versions
@@ -52,6 +52,9 @@ libc {
GLIBC_2.15 {
__fdelt_chk; __fdelt_warn;
}
+ GLIBC_2.16 {
+ __poll_chk; __ppoll_chk;
+ }
GLIBC_PRIVATE {
__fortify_fail;
}
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);
+}
diff --git a/debug/ppoll_chk.c b/debug/ppoll_chk.c
new file mode 100644
index 0000000000..63f922321c
--- /dev/null
+++ b/debug/ppoll_chk.c
@@ -0,0 +1,30 @@
+/* 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
+__ppoll_chk (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
+ const __sigset_t *ss, __SIZE_TYPE__ fdslen)
+{
+ if (fdslen / sizeof (*fds) < nfds)
+ __chk_fail ();
+
+ return ppoll (fds, nfds, timeout, ss);
+}
diff --git a/debug/tst-chk1.c b/debug/tst-chk1.c
index 7f0186e706..2593ab9f18 100644
--- a/debug/tst-chk1.c
+++ b/debug/tst-chk1.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004,2005,2006,2007,2008,2011 Free Software Foundation, Inc.
+/* Copyright (C) 2004-2008,2011,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
@@ -29,6 +29,7 @@
#include <string.h>
#include <unistd.h>
#include <wchar.h>
+#include <sys/poll.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/un.h>
@@ -1476,5 +1477,21 @@ do_test (void)
CHK_FAIL_END
#endif
+ struct pollfd fds[1];
+ fds[0].fd = STDOUT_FILENO;
+ fds[0].events = POLLOUT;
+ poll (fds, 1, 0);
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ poll (fds, 2, 0);
+ CHK_FAIL_END
+#endif
+ ppoll (fds, 1, NULL, NULL);
+#if __USE_FORTIFY_LEVEL >= 1
+ CHK_FAIL_START
+ ppoll (fds, 2, NULL, NULL);
+ CHK_FAIL_END
+#endif
+
return ret;
}