Date: Tue, 19 Jun 2001 11:43:55 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Graham Reeds <grahamr AT ntlworld DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: Extracting a directory name.
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On Mon, 18 Jun 2001, Graham Reeds wrote:

> > Did you consider the possibility that strncpy might not null-terminate
> > the resulting string in BaseDir?
> 
> I did, and tried to append one with strcat, but that didn't solve the
> problem.

You didn't show the code which appended a null character, so perhaps
that was done incorrectly.  What you did post is bound to print
garbage because the string isn't null-terminated.

> > (Btw, there are library functions to do this, called `basename' and
> > `direname'.  They are better than your code, because they also support
> > forward slashes and file names like d:foo.)
> 
> I've never heard of basename and/or dirname.  They work fine, though a
> forward slash causes a SISEGV like my code did.  How portable are these?

They are portable to most modern Unix and GNU/Linux platforms.  I
don't know about MSVC, but you could simply take the source of these
two functions from djlsr203.zip and put it into your program.  That's
the beauty of Free Software.