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authorUlrich Drepper <drepper@redhat.com>2007-08-03 04:09:03 +0000
committerUlrich Drepper <drepper@redhat.com>2007-08-03 04:09:03 +0000
commitcbf0489bcf3eebeeba595a514461057a4e2f1e8b (patch)
tree5494b98023b95a29643094578424382515a41724 /io
parentfa39685d5c7df2502213418bead44e9543a9b9ec (diff)
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* io/Makefile (aux): Add have_o_cloexec.
	* include/fcntl.h: Declare __have_o_cloexec.
	* io/have_o_cloexec.c: New file.
	* sysdeps/unix/opendir.c (__opendir): Use O_CLOEXEC is available.
	(__alloc_dir): If O_CLOEXEC has been used, don't duplicate the
	fcntl call if not necessary.
	* login/utmp_file.c (setutent_file): Use __have_o_cloexec instead
	of local variable.
Diffstat (limited to 'io')
-rw-r--r--io/Makefile2
-rw-r--r--io/have_o_cloexec.c24
2 files changed, 26 insertions, 0 deletions
diff --git a/io/Makefile b/io/Makefile
index da589b118a..1acda4c8b6 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -54,6 +54,8 @@ routines :=								\
 	sendfile sendfile64 \
 	utimensat futimens
 
+aux := have_o_cloexec
+
 # These routines will be omitted from the libc shared object.
 # Instead the static object files will be included in a special archive
 # linked against when the shared library will be used.
diff --git a/io/have_o_cloexec.c b/io/have_o_cloexec.c
new file mode 100644
index 0000000000..a83e8a4487
--- /dev/null
+++ b/io/have_o_cloexec.c
@@ -0,0 +1,24 @@
+/* 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.  */
+
+#include <fcntl.h>
+#include <kernel-features.h>
+
+#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
+int __have_o_cloexec;
+#endif