[syslinux] [5.10] PXE + dhcp opts 209, 210 and path issues in tftp/http

[H. Peter Anvin]

On 06/07/2013 03:34 PM, Ady wrote:
> 
> If I may...
> 
> Most Linux distros are not using 5.xx yet. From the point of view of 
> the final user, there are still few new features in 5.xx in 
> comparison with 4.xx. Before this issue affects more users, and 
> perhaps even turning into more difficult maintenance and patches, it 
> may be better to suffer a relatively "small" break now than later, 
> when more users and more distros might adopt newer versions (6.xx).
> 
> I would guess that even those (relatively few) users already using 
> 5.xx would rather correct a couple of cfg files (if they are using 
> the PATH directive with multiple paths), instead of potentially 
> having more serious issues in the future (or making maintenance more 
> difficult because of strange needed patches).
> 
> I would also guess that those users that are using 5.xx with multiple 
> paths listed in the PATH directive are probably following the 
> development closely enough.
> 
> IMHO, this seems to be a case where there is no "clean" solution; 
> rather "suffer" from a break now (by choosing a different 
> path-separator for the PATH directive), or it might generate much 
> more problems in the future. Well, at least this is my (very humble) 
> impression. Not being a developer myself, I could be completely and 
> absolutely wrong about it.
> 

The only other alternative I can think of is to allow quoted strings in
PATH.  Backslash-escapes are not really usable as some OSes use them and
TFTP needs to use the host filename syntax, but quotes are very rare in
filenames and probably wouldn't cause too much trouble.

	-hpa