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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.
This commit is contained in:
Ulrich Drepper
parent
3ff2c948be
commit
8ccf22f934
17
ChangeLog
17
ChangeLog
@ -1,3 +1,20 @@
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2008-07-25 Ulrich Drepper <drepper@redhat.com>
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* include/rpc/clnt.h: Declare __libc_clntudp_bufcreate and
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__libc_clntudp_bufcreate_internal.
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* include/sys/socket.h: Declare __have_sock_cloexec.
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* socket/Makefile (aux): Add have_sock_cloexec.
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* socket/have_sock_cloexec.c: New file.
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* sunrpc/clnt_udp.h (clntudp_bufcreate): Now a wrapper around
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__libc_clntudp_bufcreate.
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(__libc_clntudp_bufcreate): Former implementation of clntudp_bufcreate
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which takes an additional parameter. Create socket with non-blocking
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mode and close-on-exec flag set, if wanted.
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* sunrpc/Versions: Export __libc_clntudp_bufcreate@GLIBC_PRIVATE.
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* nis/ypclnt.c (yp_bind_client_create): Use __libc_clntpudp_bufcreate
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instead of clntudp_create. The socket has already the close-on-exec
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flag set if SOCK_CLOEXEC is defined.
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2008-07-24 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/kernel-features.h: Define
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@ -21,6 +21,18 @@ extern CLIENT *clntudp_bufcreate_internal (struct sockaddr_in *__raddr,
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struct timeval __wait_resend,
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int *__sockp, u_int __sendsz,
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u_int __recvsz) attribute_hidden;
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extern CLIENT *__libc_clntudp_bufcreate (struct sockaddr_in *__raddr,
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u_long __program, u_long __version,
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struct timeval __wait_resend,
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int *__sockp, u_int __sendsz,
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u_int __recvsz, int __flags);
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extern CLIENT *__libc_clntudp_bufcreate_internal (struct sockaddr_in *__raddr,
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u_long __program,
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u_long __version,
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struct timeval __wait_resend,
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int *__sockp, u_int __sendsz,
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u_int __recvsz, int __flags)
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attribute_hidden;
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extern CLIENT *clntunix_create_internal (struct sockaddr_un *__raddr,
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u_long __program, u_long __version,
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int *__sockp, u_int __sendsz,
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@ -153,4 +153,12 @@ extern int __libc_sa_len_internal (sa_family_t __af) attribute_hidden;
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# define __connect(fd, addr, len) INTUSE(__connect) (fd, addr, len)
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#endif
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#ifdef SOCK_CLOEXEC
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extern int __have_sock_cloexec;
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/* At lot of other functionality became available at the same time as
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SOCK_CLOEXEC. Avoid defining separate variables for all of them
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unless it is really necessary. */
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# define __have_paccept __have_sock_cloexec
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#endif
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#endif
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17
nis/ypclnt.c
17
nis/ypclnt.c
@ -1,4 +1,4 @@
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/* Copyright (C) 1996-2001, 2002, 2003, 2004, 2005, 2006
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/* Copyright (C) 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
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@ -28,6 +28,7 @@
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#include <rpcsvc/yp.h>
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#include <rpcsvc/ypclnt.h>
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#include <rpcsvc/ypupd.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <bits/libc-lock.h>
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@ -69,14 +70,24 @@ yp_bind_client_create (const char *domain, dom_binding *ysd,
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ysd->dom_domain[YPMAXDOMAIN] = '\0';
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ysd->dom_socket = RPC_ANYSOCK;
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ysd->dom_client = clntudp_create (&ysd->dom_server_addr, YPPROG, YPVERS,
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UDPTIMEOUT, &ysd->dom_socket);
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#ifdef SOCK_CLOEXEC
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# define xflags SOCK_CLOEXEC
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#else
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# define xflags 0
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#endif
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ysd->dom_client = __libc_clntudp_bufcreate (&ysd->dom_server_addr, YPPROG,
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YPVERS, UDPTIMEOUT,
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&ysd->dom_socket,
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UDPMSGSIZE, UDPMSGSIZE,
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xflags);
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if (ysd->dom_client != NULL)
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{
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#ifndef SOCK_CLOEXEC
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/* If the program exits, close the socket */
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if (fcntl (ysd->dom_socket, F_SETFD, FD_CLOEXEC) == -1)
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perror ("fcntl: F_SETFD");
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#endif
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}
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}
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@ -1,3 +1,14 @@
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2008-07-25 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/mq_notify.c (init_mq_netlink): Use
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SOCK_CLOEXEC if possible.
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2008-05-29 Ulrich Drepper <drepper@redhat.com>
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* Makefile (tests): Add tst-rwlock2a.
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* tst-rwlock2.c: Use TYPE macro to decide what rwlock type to use.
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* tst-rwlock2a.c: New file.
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2008-06-12 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/pthread/pthread.h: Remove inadvertant checkin.
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@ -76,7 +87,7 @@
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2008-03-27 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/unix/sysv/linux/bits/local_lim.h: Undefined ARG_MAX if
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* sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine ARG_MAX if
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<linux/limits.h> has defined it.
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* sysdeps/unix/sysv/linux/alpha/bits/local_lim.h: Likewise.
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* sysdeps/unix/sysv/linux/ia64/bits/local_lim.h: Likewise.
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@ -1,4 +1,4 @@
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/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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/* Copyright (C) 2004, 2005, 2008 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contribute by Ulrich Drepper <drepper@redhat.com>, 2004.
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@ -29,6 +29,7 @@
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#include <unistd.h>
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#include <sys/socket.h>
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#include <not-cancel.h>
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#include <kernel-features.h>
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#ifdef __NR_mq_notify
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@ -152,18 +153,40 @@ reset_once (void)
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static void
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init_mq_netlink (void)
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{
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#ifdef SOCK_CLOEXEC
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# ifndef __ASSUME_SOCK_CLOEXEC
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static int have_sock_cloexec;
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# else
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# define have_sock_cloexec 1
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# endif
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#else
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# define have_sock_cloexec -1
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# define SOCK_CLOEXEC 0
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#endif
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/* This code might be called a second time after fork(). The file
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descriptor is inherited from the parent. */
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if (netlink_socket == -1)
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{
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/* Just a normal netlink socket, not bound. */
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if (have_sock_cloexec)
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{
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netlink_socket = socket (AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, 0);
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#if defined SOCK_CLOEXEC && !defined __ASSUME_SOCK_CLOEXEC
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if (have_sock_cloexec == 0)
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have_sock_cloexec = (netlink_socket != -1 || errno != EINVAL
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? 1 : -1);
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#endif
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}
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if (have_sock_cloexec < 0)
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netlink_socket = socket (AF_NETLINK, SOCK_RAW, 0);
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/* No need to do more if we have no socket. */
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if (netlink_socket == -1)
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return;
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/* Make sure the descriptor is closed on exec. */
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if (fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0)
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if (have_sock_cloexec < 0
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&& fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0)
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goto errout;
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}
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@ -29,6 +29,8 @@ routines := accept bind connect getpeername getsockname getsockopt \
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setsockopt shutdown socket socketpair isfdtype opensock \
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sockatmark paccept
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aux := have_sock_cloexec
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distribute := ifreq.h
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include ../Rules
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24
socket/have_sock_cloexec.c
Normal file
24
socket/have_sock_cloexec.c
Normal file
@ -0,0 +1,24 @@
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/* Copyright (C) 2008 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/socket.h>
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#include <kernel-features.h>
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#if defined SOCK_CLOEXEC && !defined __ASSUME_SOCK_CLOEXEC
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int __have_sock_cloexec;
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#endif
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@ -116,4 +116,7 @@ libc {
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GLIBC_2.3.4 {
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xdr_quad_t; xdr_u_quad_t;
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}
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GLIBC_PRIVATE {
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__libc_clntudp_bufcreate;
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}
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}
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@ -54,12 +54,15 @@ static char sccsid[] = "@(#)clnt_udp.c 1.39 87/08/11 Copyr 1984 Sun Micro";
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#ifdef USE_IN_LIBIO
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# include <wchar.h>
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#endif
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#include <fcntl.h>
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#ifdef IP_RECVERR
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#include <errqueue.h>
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#include <sys/uio.h>
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#endif
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#include <kernel-features.h>
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extern bool_t xdr_opaque_auth (XDR *, struct opaque_auth *);
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extern u_long _create_xid (void);
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@ -121,9 +124,9 @@ struct cu_data
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* sent and received.
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*/
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CLIENT *
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clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
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struct timeval wait, int *sockp, u_int sendsz,
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u_int recvsz)
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__libc_clntudp_bufcreate (struct sockaddr_in *raddr, u_long program,
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u_long version, struct timeval wait, int *sockp,
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u_int sendsz, u_int recvsz, int flags)
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{
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CLIENT *cl;
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struct cu_data *cu = NULL;
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@ -178,8 +181,32 @@ clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
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{
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int dontblock = 1;
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#ifdef SOCK_NONBLOCK
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# ifndef __ASSUME_SOCK_CLOEXEC
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if (__have_sock_cloexec >= 0)
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# endif
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{
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*sockp = __socket (AF_INET, SOCK_DGRAM|SOCK_NONBLOCK|flags,
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IPPROTO_UDP);
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# ifndef __ASSUME_SOCK_CLOEXEC
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if (__have_sock_cloexec == 0)
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__have_sock_cloexec = *sockp >= 0 || errno != EINVAL ? 1 : -1;
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# endif
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}
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#endif
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#ifndef __ASSUME_SOCK_CLOEXEC
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# ifdef SOCK_CLOEXEC
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if (__have_sock_cloexec < 0)
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# endif
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{
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*sockp = __socket (AF_INET, SOCK_DGRAM, IPPROTO_UDP);
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if (*sockp < 0)
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# ifdef SOCK_CLOEXEC
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if (flags & SOCK_CLOEXEC)
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fcntl (*sockp, F_SETFD, FD_CLOEXEC);
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# endif
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}
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#endif
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if (__builtin_expect (*sockp < 0, 0))
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{
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struct rpc_createerr *ce = &get_rpc_createerr ();
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ce->cf_stat = RPC_SYSTEMERROR;
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@ -188,8 +215,13 @@ clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
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}
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/* attempt to bind to prov port */
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(void) bindresvport (*sockp, (struct sockaddr_in *) 0);
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#ifndef __ASSUME_SOCK_CLOEXEC
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# ifdef SOCK_CLOEXEC
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if (__have_sock_cloexec < 0)
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# endif
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/* the sockets rpc controls are non-blocking */
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(void) __ioctl (*sockp, FIONBIO, (char *) &dontblock);
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#endif
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#ifdef IP_RECVERR
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{
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int on = 1;
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@ -212,6 +244,16 @@ fooy:
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mem_free ((caddr_t) cl, sizeof (CLIENT));
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return (CLIENT *) NULL;
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}
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INTDEF (__libc_clntudp_bufcreate)
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CLIENT *
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clntudp_bufcreate (struct sockaddr_in *raddr, u_long program, u_long version,
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struct timeval wait, int *sockp, u_int sendsz,
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u_int recvsz)
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{
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return INTUSE(__libc_clntudp_bufcreate) (raddr, program, version, wait,
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sockp, sendsz, recvsz, 0);
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}
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INTDEF (clntudp_bufcreate)
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CLIENT *
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@ -222,8 +264,8 @@ clntudp_create (raddr, program, version, wait, sockp)
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struct timeval wait;
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int *sockp;
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{
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return INTUSE(clntudp_bufcreate) (raddr, program, version, wait, sockp,
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UDPMSGSIZE, UDPMSGSIZE);
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return INTUSE(__libc_clntudp_bufcreate) (raddr, program, version, wait,
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sockp, UDPMSGSIZE, UDPMSGSIZE, 0);
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}
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INTDEF (clntudp_create)
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