Re: [Bug-tar] test 56 fails on Debian kfreebsd

[Joerg Schilling]

Chuck Swiger <address@hidden> wrote:

> On Nov 11, 2011, at 11:56 AM, Paul Eggert wrote:
> > I wouldn't worry about that test failure.
> > It's a known problem with getcwd on traditional
> > Unix and BSD.
>
> Can you be more verbose about this problem with getcwd()?
>
> The only major differences I see between the BSD version and a glibc version 
> is that BSD will allocate a buffer for you if you pass NULL pointer as the 
> first arg, and that glibc/Linux will try to look at /proc/self/cwd to try and 
> avoid returning EACCES....

getcwd() has been turned into a syscall on Solaris 5 years ago for Linux 
compatibility. I would guess that Linux also implements a related syscall.
This allows to get the working directory in cases where all other methods must 
fail.

Jörg

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