From: khan AT xraylith DOT wisc DOT edu (Mumit Khan)
Subject: Re: strlen on a NULL
12 May 1998 18:24:14 -0700
Message-ID: <9805121517.AA04942.cygnus.gnu-win32@modi.xraylith.wisc.edu>
References: <3557E6C4 DOT EF2F27B3 AT kiwiplan DOT co DOT nz>
To: Ian Collins <ian AT kiwiplan DOT co DOT nz>
Cc: gnuwin32 <gnu-win32 AT cygnus DOT com>

Ian Collins <ian AT kiwiplan DOT co DOT nz> writes:
> If I do a strlen on a NULL pointer I get a coredump.
> I have the same code running on a few *other* Unix machines with
> exhibiting this behaviour.
> OK, so I could tidy it up, but I wondered is this an oversight or the
> correct behaviour?

This is correct behaviour. Passing NULL as an arg to str* functions that
expect a string, with the exception of those that are documented to accept
NULL explicitly such a strtrok, is incorrect.

Fix your code.

Mumit
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