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authorUlrich Drepper <drepper@redhat.com>2008-07-25 17:06:50 +0000
committerUlrich Drepper <drepper@redhat.com>2008-07-25 17:06:50 +0000
commit8ccf22f93431a2f8c77de708cd3b15325c8fe0f4 (patch)
treeea971b1800c807ebd69b29a80b01f06a9c71b34f /nptl
parent3ff2c948beaad303e376e1ad778d1cd8693a3099 (diff)
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* include/rpc/clnt.h: Declare __libc_clntudp_bufcreate and
__libc_clntudp_bufcreate_internal. * include/sys/socket.h: Declare __have_sock_cloexec. * socket/Makefile (aux): Add have_sock_cloexec. * socket/have_sock_cloexec.c: New file. * sunrpc/clnt_udp.h (clntudp_bufcreate): Now a wrapper around __libc_clntudp_bufcreate. (__libc_clntudp_bufcreate): Former implementation of clntudp_bufcreate which takes an additional parameter. Create socket with non-blocking mode and close-on-exec flag set, if wanted. * sunrpc/Versions: Export __libc_clntudp_bufcreate@GLIBC_PRIVATE. * nis/ypclnt.c (yp_bind_client_create): Use __libc_clntpudp_bufcreate instead of clntudp_create. The socket has already the close-on-exec flag set if SOCK_CLOEXEC is defined.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog13
-rw-r--r--nptl/sysdeps/unix/sysv/linux/mq_notify.c29
2 files changed, 38 insertions, 4 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 744f90d..27ced1a 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,14 @@
+2008-07-25 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/unix/sysv/linux/mq_notify.c (init_mq_netlink): Use
+ SOCK_CLOEXEC if possible.
+
+2008-05-29 Ulrich Drepper <drepper@redhat.com>
+
+ * Makefile (tests): Add tst-rwlock2a.
+ * tst-rwlock2.c: Use TYPE macro to decide what rwlock type to use.
+ * tst-rwlock2a.c: New file.
+
2008-06-12 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h: Remove inadvertant checkin.
@@ -76,7 +87,7 @@
2008-03-27 Ulrich Drepper <drepper@redhat.com>
- * sysdeps/unix/sysv/linux/bits/local_lim.h: Undefined ARG_MAX if
+ * sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine ARG_MAX if
<linux/limits.h> has defined it.
* sysdeps/unix/sysv/linux/alpha/bits/local_lim.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/local_lim.h: Likewise.
diff --git a/nptl/sysdeps/unix/sysv/linux/mq_notify.c b/nptl/sysdeps/unix/sysv/linux/mq_notify.c
index 2ec11bf..1be452a 100644
--- a/nptl/sysdeps/unix/sysv/linux/mq_notify.c
+++ b/nptl/sysdeps/unix/sysv/linux/mq_notify.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005, 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contribute by Ulrich Drepper <drepper@redhat.com>, 2004.
@@ -29,6 +29,7 @@
#include <unistd.h>
#include <sys/socket.h>
#include <not-cancel.h>
+#include <kernel-features.h>
#ifdef __NR_mq_notify
@@ -152,18 +153,40 @@ reset_once (void)
static void
init_mq_netlink (void)
{
+#ifdef SOCK_CLOEXEC
+# ifndef __ASSUME_SOCK_CLOEXEC
+ static int have_sock_cloexec;
+# else
+# define have_sock_cloexec 1
+# endif
+#else
+# define have_sock_cloexec -1
+# define SOCK_CLOEXEC 0
+#endif
+
/* This code might be called a second time after fork(). The file
descriptor is inherited from the parent. */
if (netlink_socket == -1)
{
/* Just a normal netlink socket, not bound. */
- netlink_socket = socket (AF_NETLINK, SOCK_RAW, 0);
+ if (have_sock_cloexec)
+ {
+ netlink_socket = socket (AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, 0);
+#if defined SOCK_CLOEXEC && !defined __ASSUME_SOCK_CLOEXEC
+ if (have_sock_cloexec == 0)
+ have_sock_cloexec = (netlink_socket != -1 || errno != EINVAL
+ ? 1 : -1);
+#endif
+ }
+ if (have_sock_cloexec < 0)
+ netlink_socket = socket (AF_NETLINK, SOCK_RAW, 0);
/* No need to do more if we have no socket. */
if (netlink_socket == -1)
return;
/* Make sure the descriptor is closed on exec. */
- if (fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0)
+ if (have_sock_cloexec < 0
+ && fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0)
goto errout;
}