Re: 1.7.0-62: segfault when PATH is not set

[Denis Excoffier <Denis dot Excoffier at free dot fr>]

On 2009-10-19 11:36, Corinna Vinschen wrote:

> On Oct 17 04:33, Denis Excoffier wrote:
> > Hello,
> >
> > I've installed all the Cygwin-1.7.0 packages uptodate, on my  
> > Windows XP
> > machine.
> > I do experience a segmentation fault whenever i launch a program  
> > when the
> > PATH is not set.
> >
> > When PATH is badly set (but set), nothing happens (and the result  
> > is OK).
> >
> > See below how to reproduce. When i switch back to 1.7.0-61, the  
> > problem
> > disappears. On a Windows 2000 machine, the same happens.
> >
> > Thank you to spend a little time to take my problem into  
> > consideration.
> >
> > Denis Excoffier.
> >
> > jupiter% uname -a
> > CYGWIN_NT-5.1 JUPITER 1.7.0(0.214/5/3) 2009-10-03 14:33 i686 Cygwin
> > jupiter% date --version | head -1
> > date (GNU coreutils) 7.0
> > jupiter% env --version | head -1
> > env (GNU coreutils) 7.0
> > jupiter% env - PATH=/usr/bin /usr/bin/date
> > Fri Oct 16 17:26:37 RDT 2009
> > jupiter% env - PATH=/nonexistent /usr/bin/date
> > Fri Oct 16 17:26:37 RDT 2009
> > jupiter% env - PATHOS=/nonexistent /usr/bin/date
> > Segmentation fault (core dumped)
>
> Strange.  I can't reproduce this:
>
>  $ env - PATHOS=/dqd /usr/bin/date
>  Mon Oct 19 11:26:46 WEDT 2009
>
>  $ env - PATHOS=/nonexistent /usr/bin/env
>  PATHOS=/nonexistent
>  SYSTEMROOT=C:\Windows
>  WINDIR=C:\Windows
You're right, it seems that LC_CTYPE is also involved in this. Please  
try under sh:

$ export LC_CTYPE=
$ env - PATHOS=/nonexistent /usr/bin/date
Mon Oct 19 13:12:40 RDT 2009

$ export LC_CTYPE=dummy
$ env - PATHOS=/nonexistent /usr/bin/date
Segmentation fault (core dumped)

$ export LC_CTYPE=C
$ env - PATHOS=/nonexistent /usr/bin/date
Mon Oct 19 13:12:40 RDT 2009

$ export LC_CTYPE=fr_FR.ISO-8859-15
$ env - PATHOS=/nonexistent /usr/bin/date
Segmentation fault (core dumped)

$ export LC_CTYPE=dummy
$ env - PATHOS=/nonexistent /usr/bin/date
Mon Oct 19 13:12:41 RDT 2009
$ env - PATHOS=/nonexistent /usr/bin/env
PATHOS=/nonexistent
SYSTEMROOT=C:\WINNT
WINDIR=C:\WINNT

Hope this helps.

Regards.

Denis Excoffier.

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