* rt/Versions (librt): Export __mq_open_2@@GLIBC_2.7.

	* rt/Makefile (headers): Add bits/mqueue2.h.
	* rt/mqueue.h: Include bits/mqueue2.h if -D_FORTIFY_SOURCE=2,
	optimizing with GCC and __va_arg_pack_len is defined.
	* rt/bits/mqueue2.h: New file.
	* rt/mq_open.c (__mq_open): Renamed from mq_open.
	(mq_open): New strong_alias.
	(__mq_open_2): New function.
	* sysdeps/unix/sysv/linux/mq_open.c (__mq_open): Renamed from mq_open.
	(mq_open): New strong_alias.
	(__mq_open_2): New function.
	* debug/Versions (libc): Export __fortify_fail@@GLIBC_PRIVATE.
	* Versions.def (librt): Add GLIBC_2.7 version.
	* debug/fortify_fail.c (__fortify_fail): Add libc_hidden_def.
	* include/stdio.h (__fortify_fail): Add libc_hidden_proto.

	* misc/sys/cdefs.h (__errordecl, __va_arg_pack_len): Define.
	* io/fcntl.h: Include bits/fcntl2.h when __va_arg_pack_len
	is defined rather than when not C++.
	* io/bits/fcntl2.h (__open_alias, __open64_alias, __openat_alias,
	__openat64_alias): New redirects.
	(__open_too_many_args, __open_missing_mode, __open64_too_many_args,
	__open64_missing_mode, __openat_too_many_args, __openat_missing_mode,
	__openat64_too_many_args, __openat64_missing_mode): New __errordecls.
	(open, open64, openat, openat64): Rewrite as __extern_always_inline
	functions instead of function-like macros.

1 files changed, 56 insertions, 0 deletions

diff --git a/rt/bits/mqueue2.h b/rt/bits/mqueue2.h
new file mode 100644
index 0000000000..4c90609e83
--- /dev/null
+++ b/rt/bits/mqueue2.h
@@ -0,0 +1,56 @@
+/* Checking macros for mq functions.
+   Copyright (C) 2007 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.  */
+
+#ifndef	_FCNTL_H
+# error "Never include <bits/mqueue2.h> directly; use <mqueue.h> instead."
+#endif
+
+/* Check that calls to mq_open with O_CREAT set have an appropriate third and fourth
+   parameter.  */
+extern mqd_t mq_open (__const char *__name, int __oflag, ...)
+     __THROW __nonnull ((1));
+extern mqd_t __mq_open_2 (__const char *__name, int __oflag) __nonnull ((1));
+extern mqd_t __REDIRECT (__mq_open_alias, (__const char *__name, int __oflag, ...),
+			 mq_open) __nonnull ((1));
+__errordecl (__mq_open_wrong_number_of_args,
+	     "mq_open can be called either with 2 or 4 arguments");
+__errordecl (__mq_open_missing_mode_and_attr,
+	     "mq_open with O_CREAT in second argument needs 4 arguments");
+
+__extern_always_inline mqd_t
+mq_open (__const char *__name, int __oflag, ...)
+{
+  if (__va_arg_pack_len () != 0 && __va_arg_pack_len () != 2)
+    __mq_open_wrong_number_of_args ();
+
+  if (__builtin_constant_p (__oflag))
+    {
+      if ((__oflag & O_CREAT) != 0 && __va_arg_pack_len () == 0)
+	{
+	  __mq_open_missing_mode_and_attr ();
+	  return __mq_open_2 (__name, __oflag);
+	}
+      return __mq_open_alias (__name, __oflag, __va_arg_pack ());
+    }
+
+  if (__va_arg_pack_len () == 0)
+    return __mq_open_2 (__name, __oflag);
+
+  return __mq_open_alias (__name, __oflag, __va_arg_pack ());
+}