openssh 5.0p1: Solaris - Failed to allocate internet-domain X11 display socket.

[Pieter Bowman]

On Solaris 10 (SPARC & x86), I'm seeing the following error:

error: Failed to allocate internet-domain X11 display socket.


I tracked this down to this code change between openssh 4.7p1 and
5.0p1:

*** openssh-4.7p1/channels.c	Mon Jun 25 03:04:47 2007
--- openssh-5.0p1/channels.c	Wed Apr  2 15:43:57 2008
***************
*** 1,4 ****
! /* $OpenBSD: channels.c,v 1.270 2007/06/25 08:20:03 dtucker Exp $ */
  /*
   * Author: Tatu Ylonen <ylo at cs.hut.fi>
   * Copyright (c) 1995 Tatu Ylonen <ylo at cs.hut.fi>, Espoo, Finland
--- 1,4 ----
! /* $OpenBSD: channels.c,v 1.273 2008/04/02 21:36:51 markus Exp $ */
  /*
   * Author: Tatu Ylonen <ylo at cs.hut.fi>
   * Copyright (c) 1995 Tatu Ylonen <ylo at cs.hut.fi>, Espoo, Finland
***************
*** 2905,2913 ****
  				debug2("bind port %d: %.100s", port, strerror(errno));
  				close(sock);
  
- 				if (ai->ai_next)
- 					continue;
- 
  				for (n = 0; n < num_socks; n++) {
  					close(socks[n]);
  				}
--- 2906,2911 ----


When those two lines are added back in, X11 forwarding is able to get
a port bound.

This is only the case on Solaris.  On Linux, *BSD, IRIX systems the
current code works.

Thanks for looking into this.

Pieter