diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/ChangeLog | 13 | ||||
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/mq_notify.c | 29 |
2 files changed, 38 insertions, 4 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 744f90d786..27ced1aedb 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 2ec11bf686..1be452a0e0 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; } |