Date: Tue, 26 Mar 2013 22:46:56 +0000 (UTC) From: Jilles Tjoelker <jilles@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r248774 - head/lib/libc/sys Message-ID: <201303262246.r2QMkuca043435@svn.freebsd.org>
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Author: jilles Date: Tue Mar 26 22:46:56 2013 New Revision: 248774 URL: http://svnweb.freebsd.org/changeset/base/248774 Log: accept(2): Mention inheritance of O_ASYNC and signal destination. While almost nobody uses O_ASYNC, and rightly so, the inheritance of the related properties across accept() is a portability issue like the inheritance of O_NONBLOCK. Modified: head/lib/libc/sys/accept.2 Modified: head/lib/libc/sys/accept.2 ============================================================================== --- head/lib/libc/sys/accept.2 Tue Mar 26 22:17:10 2013 (r248773) +++ head/lib/libc/sys/accept.2 Tue Mar 26 22:46:56 2013 (r248774) @@ -28,7 +28,7 @@ .\" @(#)accept.2 8.2 (Berkeley) 12/11/93 .\" $FreeBSD$ .\" -.Dd December 11, 1993 +.Dd March 26, 2013 .Dt ACCEPT 2 .Os .Sh NAME @@ -57,7 +57,13 @@ queue of pending connections, creates a and allocates a new file descriptor for the socket which inherits the state of the .Dv O_NONBLOCK -property from the original socket +and +.Dv O_ASYNC +properties and the destination of +.Dv SIGIO +and +.Dv SIGURG +signals from the original socket .Fa s . .Pp If no pending connections are @@ -129,7 +135,11 @@ to pre-process incoming connections. .Pp Portable programs should not rely on the .Dv O_NONBLOCK -property being inherited. +and +.Dv O_ASYNC +properties and the signal destination being inherited, +but should set them explicitly using +.Xr fcntl 2 . .Sh RETURN VALUES The call returns \-1 on error. If it succeeds, it returns a non-negative
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