Re: [bug-gawk] length() crash

[Aharon Robbins]

Greetings. Re this:

> Date: Thu, 23 Jun 2011 00:39:10 +0200
> From: miro drahos <address@hidden>
> To: address@hidden
> Subject: [bug-gawk] length() crash
>
> Hi there,
> I experienced awk crash (BIG surprise to me), when calling length() on
> non-existent field.
> My version:
> GNU Awk 3.1.6
> system: bash on Ubuntu Linux 2.6.32-32-generic i686
>
> here is what i did:
> //-------------------------------------------------------------------------
> $ echo 'one two' | awk '{if(length($3)!=3)$4="000000000000" ; print}'
> *** glibc detected *** awk: double free or corruption (fasttop): 0x08d57d60
> ***
> ======= Backtrace: =========
> .....

Thank you for the report.

This is indeed a bug that shows up outside the "C" locale.

You can pull the current gawk code from the git repository on Savannah
(start at http://savannah.gnu.org, put 'gawk' into the Project box
and follow the info for getting the code).

You can check out the gawk-stable branch, which has the problem fixed
and is closer to 3.1.6, or just build off the master branch which also
has the problem fixed.

Thanks,

Arnold