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Date:      Sat, 29 Aug 2009 04:15:37 +0000 (UTC)
From:      Brian Somers <brian@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
Subject:   svn commit: r196639 - stable/8/usr.sbin/ppp
Message-ID:  <200908290415.n7T4FbQK045532@svn.freebsd.org>

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Author: brian
Date: Sat Aug 29 04:15:37 2009
New Revision: 196639
URL: http://svn.freebsd.org/changeset/base/196639

Log:
  MFC r196530: Document that ppp handles pipe(2) descriptors specially in
               -direct mode.
  
  Approved by:	re (kib)

Modified:
  stable/8/usr.sbin/ppp/   (props changed)
  stable/8/usr.sbin/ppp/ppp.8.m4

Modified: stable/8/usr.sbin/ppp/ppp.8.m4
==============================================================================
--- stable/8/usr.sbin/ppp/ppp.8.m4	Sat Aug 29 03:17:24 2009	(r196638)
+++ stable/8/usr.sbin/ppp/ppp.8.m4	Sat Aug 29 04:15:37 2009	(r196639)
@@ -27,7 +27,7 @@ changecom(,)dnl
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 24, 2007
+.Dd August 25, 2009
 .Dt PPP 8
 .Os
 .Sh NAME
@@ -171,6 +171,17 @@ If callback is configured,
 will use the
 .Dq set device
 information when dialing back.
+.Pp
+When run in
+.Fl direct
+mode,
+.Nm
+will behave slightly differently if descriptor 0 was created by
+.Xr pipe 2 .
+As pipes are not bi-directional, ppp will redirect all writes to descriptor
+1 (standard output), leaving only reads acting on descriptor 0.
+No special action is taken if descriptor 0 was created by
+.Xr socketpair 2 .
 .It Fl dedicated
 This option is designed for machines connected with a dedicated
 wire.
@@ -6055,6 +6066,8 @@ This socket is used to pass links betwee
 .Xr tcpdump 1 ,
 .Xr telnet 1 ,
 .Xr kldload 2 ,
+.Xr pipe 2 ,
+.Xr socketpair 2 ,
 ifdef({LOCALNAT},{},{.Xr libalias 3 ,
 })dnl
 ifdef({LOCALRAD},{},{.Xr libradius 3 ,



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