Re: [ROOT] TBrowser SEGV when user's primary group is only numeric

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Hi Brett,

 thanks. Protection added.

Cheers, Fons.



On Wed, 2004-08-25 at 21:27, Brett Viren wrote:
> Hi,
> 
> Starting a TBrowser as a user with a primary group not listed in
> /etc/groups causes a SegV in TUnixSystem::GetUserInfo due to the line
> 
> UserGroup_t *TUnixSystem::GetUserInfo(Int_t uid)
> {
> ...
>       UserGroup_t *gr = GetGroupInfo(pwd->pw_gid);
>       ug->fGroup    = gr->fGroup;
> 
> as ug is 0x0 because getgrgid() returns 0x0.
> 
> I agree it's a bit odd to have systems with users that have a numeric
> only main groups, but maybe we can get a check for 0x0 put in here
> anyways?
> 
> 
> Thanks,
> -Brett.
> 
> PS: CVS as of today (but this has been around at least a couple weeks
> I think and 4.00/03 doesn't have it) on Debian x86 GCC 3.3.3, libc 2.3.2.
-- 
Org:    CERN, European Laboratory for Particle Physics.
Mail:   1211 Geneve 23, Switzerland
E-Mail: Fons.Rademakers@cern.ch              Phone: +41 22 7679248
WWW:    http://www.rademakers.org/fons/      Fax:   +41 22 7679480

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