[X2Go-Dev] [PATCH] Re: x2godesktopsharing SIGSEV - how to compile with debugging info?

[Milan Knížek]

V Sat, 18 Feb 2012 09:00:30 +0100 (CET)
Jan Engelhardt <jengelh at medozas.de> napsáno:

> I do not see any group name length limit either, however,
> 
> (a) there is a limit as to what a user can/want to take. While
> tabcompletion probably gets you out most of the time, nobody really
> wants e.g. /home/Karl\ Theodor\ Maria\ Nikolaus\ Johann\ Jacob\
> Philipp\ Franz\ Joseph\ Sylvester\ Freiherr\ von\ und\ zu\ Guttenberg
> (21st century, though past-time, German politician serving for this
> example).
> 
> (b) not defined by POSIX, but there is an actual sanity limit.
> A username length about PATH_MAX chars long becomes problematic
> to be used in a path, e.g. when attempting to use for /home :)
> 
> The 16 character limit in Arch is just like the 80 character "limit"
> in coding. But actually, it is not a limit, but a wellness target: it
> may be exceeded if there is a justification. In contrast, historic
> UNIX usernames of 8 chars - /that/ was a limit.

This seems to be a compilation-time configure option
GROUP_NAME_MAX_LENGTH...

On Debian (I looked at Knoppix actually), the limit is relaxed a bit: 32
chars.


It can be handled as a distro specific patch, although it complicates
portability. 

Regards,
Milan
-- 
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