diff options
| author |   guenther <guenther@openbsd.org> | 2014-08-31 01:42:36 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2014-08-31 01:42:36 +0000 |
| commit | b65639bd219b95b988677e8920af7a5b157bf154 (patch) | |
| tree | 95e750bdd8bd7c588849acf13e4b9cb25704c49f /lib/libc/sys/socket.2 | |
| parent | Finally ``revert'' to the recent pexecute interface, now that we do not need (diff) | |
| download | wireguard-openbsd-b65639bd219b95b988677e8920af7a5b157bf154.tar.xz wireguard-openbsd-b65639bd219b95b988677e8920af7a5b157bf154.zip | |
Add additional kernel interfaces for setting close-on-exec on fds
when creating them: pipe2(), dup3(), accept4(), MSG_CMSG_CLOEXEC,
SOCK_CLOEXEC. Includes SOCK_NONBLOCK support.
ok matthew@
Diffstat (limited to 'lib/libc/sys/socket.2')
| -rw-r--r-- | lib/libc/sys/socket.2 | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/lib/libc/sys/socket.2 b/lib/libc/sys/socket.2 index d3703d44a93..10f48fe68a7 100644 --- a/lib/libc/sys/socket.2 +++ b/lib/libc/sys/socket.2 @@ -1,4 +1,4 @@ -.\" $OpenBSD: socket.2,v 1.37 2014/08/10 07:19:08 guenther Exp $ +.\" $OpenBSD: socket.2,v 1.38 2014/08/31 01:42:36 guenther Exp $ .\" $NetBSD: socket.2,v 1.5 1995/02/27 12:37:53 cgd Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 @@ -30,14 +30,14 @@ .\" .\" @(#)socket.2 8.1 (Berkeley) 6/4/93 .\" -.Dd $Mdocdate: August 10 2014 $ +.Dd $Mdocdate: August 31 2014 $ .Dt SOCKET 2 .Os .Sh NAME .Nm socket .Nd create an endpoint for communication .Sh SYNOPSIS -.Fd #include <sys/socket.h> +.In sys/socket.h .Ft int .Fn socket "int domain" "int type" "int protocol" .Sh DESCRIPTION @@ -90,12 +90,23 @@ socket may provide a sequenced, reliable, two-way connection-based data transmission path for datagrams of fixed maximum length; a consumer may be required to read an entire packet with each read system call. -This facility is protocol specific, and presently implemented for +This facility is protocol specific, and presently implemented only for .Dv AF_UNIX . .Dv SOCK_RAW sockets provide access to internal network protocols and interfaces, and are available only to the superuser. .Pp +Any combination of the following flags may additionally be used in the +.Fa type +argument: +.Pp +.Bl -tag -width "SOCK_NONBLOCKX" -offset indent -compact +.It SOCK_CLOEXEC +Set close-on-exec flag on the new descriptor. +.It SOCK_NONBLOCK +Set non-blocking I/O mode on the new socket. +.El +.Pp The .Fa protocol specifies a particular protocol to be used with the socket. |