Syslinux - Nov 2007 - [Fwd: pxelinux doesn't suppress common prefix if nothing precedes double colon]

Just a reminder that this remains an issue up to and including the 
latest syslinux 3.53-pre (0x473cfc9c).

Additional testing suggests that implicit hostname/IP has never worked, 
ever since the common prefix suppression feature was added in version 3.00.

-------- Original Message --------
Subject: 	pxelinux doesn't suppress common prefix if nothing precedes 
double colon
Date: 	Sat, 25 Aug 2007 22:22:00 -0400
From: 	Paul Whittaker <whitpa at velocitynet.com.au>
To: 	syslinux at zytor.com



Contrary to the pxelinux.doc documentation, the common filename prefix 
is only suppressed if an explicit hostname or IP address precedes the 
double colon, e.g. 192.168.1.1::/foobar.  A tcpdump of TFTP requests 
reveals that the double colon does nothing in implicit case (::/foobar 
is the same as /foobar, i.e. gets mapped to /pxelinux//foobar or 
whatever).  0.0.0.0::/foobar also does this.

I first noticed the  problem in 3.51, and have confirmed that it still 
exists in the current (3.52 0x46d0cdef) git code.

Sorry, my 80x86 assembly skills are too rusty to fix this myself, but it 
should be 100% reproduceable.

Paul Whittaker wrote:
> Just a reminder that this remains an issue up to and including the 
> latest syslinux 3.53-pre (0x473cfc9c).
> 
> Additional testing suggests that implicit hostname/IP has never worked, 
> ever since the common prefix suppression feature was added in version 3.00.
Thanks for the reminder.  I will look into it.

	-hpa

Paul Whittaker wrote:
> Just a reminder that this remains an issue up to and including the 
> latest syslinux 3.53-pre (0x473cfc9c).
> 
> Additional testing suggests that implicit hostname/IP has never worked, 
> ever since the common prefix suppression feature was added in version 3.00.
> 
> -------- Original Message --------
> Subject: 	pxelinux doesn't suppress common prefix if nothing precedes 
> double colon
> Date: 	Sat, 25 Aug 2007 22:22:00 -0400
> From: 	Paul Whittaker <whitpa at velocitynet.com.au>
> To: 	syslinux at zytor.com
> 
> Contrary to the pxelinux.doc documentation, the common filename prefix 
> is only suppressed if an explicit hostname or IP address precedes the 
> double colon, e.g. 192.168.1.1::/foobar.  A tcpdump of TFTP requests 
> reveals that the double colon does nothing in implicit case (::/foobar 
> is the same as /foobar, i.e. gets mapped to /pxelinux//foobar or 
> whatever).  0.0.0.0::/foobar also does this.
> 
> I first noticed the  problem in 3.51, and have confirmed that it still 
> exists in the current (3.52 0x46d0cdef) git code.
> 
> Sorry, my 80x86 assembly skills are too rusty to fix this myself, but it 
> should be 100% reproduceable.
> 
I just tested this on my own system, and I explicitly do *NOT* see this 
problem in syslinux-3.53-pre5.  I need more details about exactly what 
you're trying to do; in particular if you can send me a config file that 
reproduces the problem it would help.

	-h-pa