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Re: [freetds] Possible free(NULL) in tsql

From: entropy AT freetds.org
To: FreeTDS Development Group <freetds AT lists.ibiblio.org>
Subject: Re: [freetds] Possible free(NULL) in tsql
Date: Fri, 12 Oct 2007 19:50:59 -0400

James K. Lowden wrote:

ZIGLIO, Frediano, VF-IT wrote:

if continue at line 711 is hit s2 == NULL and a free(s2) (line 690) is
executed. This can cause a core in some system.

Hi Freddy,
Well, I think that's a rumor, because I'm pretty sure we expect free(NULL)
to work elsewhere in the code.

ANSI C requires it to work. If it causes a core dump, then the system is broken by any reasonable definition. See ISO/IEC 9899:1990 7.10.3.2 and then file a bug report with your vendor...

--
Cheers,
entropy

[freetds] Possible free(NULL) in tsql, ZIGLIO, Frediano, VF-IT, 10/12/2007
- Re: [freetds] Possible free(NULL) in tsql, James K. Lowden, 10/12/2007
  - Re: [freetds] Possible free(NULL) in tsql, entropy, 10/12/2007
    - Re: [freetds] Possible free(NULL) in tsql, ZIGLIO, Frediano, VF-IT, 10/16/2007