Re: [PATCH] Add compat/vsnprintf.c for systems that returns -1 on maxsize reached

From: Michal Rokos <michal.rokos@nextsoft.cz>
Date: Mar 10, 2008, 09:47 UTC
Message-ID: <200803101047.47044.michal.rokos@nextsoft.cz>
In-Reply-To: <47D4FF55.8020909@viscovery.net>

On Monday 10 March 2008 10:28:53 Johannes Sixt wrote:

Show 14 quoted lines

> Michal Rokos schrieb:
> > Hello,
> >
> > I've managed to run testcase on
> > Tru64 OSF1 <hostname> V5.1 2650 alpha
> > and it returns
> > case1: 0
> > case2: 4
> > case3: 5
> > case4: 5
> > which is sad since our vsnprintf() cannot detect this ill behaviour.
>
> Ugh! We'd need to run the loop until we get a return value that is not
> negative and less than the size specified...

Hmm, I'm afraid we have to grow our buffer size until 2 successive runs return the same value and that value is not -1.

But - do we want to fix it now, when we don't even know that else would be needed for Tru64 port? There's even no Tru64 paragraph in Makefile yet.

Michal

PS: I have no ambition to port git to Tru64 since that test machine is 
accessible via friend of my friend - so I have to IM him the code and he 
returns value :)

-- 
Michal Rokos

NextSoft s.r.o.
Vyskočilova 1/1410
140 21 Praha 4
phone:  +420 267 224 311
fax:    +420 267 224 307
mobile: +420 736 646 591
e-mail: michal.rokos@nextsoft.cz