Re: bug report: buffer overflow : symbol name is too long

[Shigio YAMAGUCHI]

Hello,
I have put this to the TODO list.
[http://www.gnu.org/software/global/plans.html]
Thank you for the report.

On Wed, 14 Aug 2013 11:23:39 -0400
Iain Woolf <address@hidden> wrote:

> What is your environment (OS)?
>  - Linux (Red Hat Enterprise Linux Server release 5.3 / kernel 
> 2.6.18-128.el5PAE)
> 
> Which version of GLOBAL are you using?
>  - global-6.2.8 (downloaded and installed today, to see if this was
> already fixed)
> 
> What did you do? (command line)
> 
> > gtags -v -f problem-file .
> [Wed Aug 14 11:15:10 EDT 2013] Gtags started.
>  Using default configuration.
>  Using 'problem-file' as a file list.
> [Wed Aug 14 11:15:10 EDT 2013] Creating 'GTAGS' and 'GRTAGS'.
>  [1] extracting tags of define_too_long.h
> Warning: symbol name is too long. (Ignored)[+3 ./define_too_long.h]
> gtags: buffer overflow. strlimcpy(dest,
> 'this_define_has_512_chars_abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890_abcdefghijklmnopq',
> 512).
> > cat problem-file
> define_too_long.h
> > cat define_too_long.h
> #define
> this_define_has_511_chars_abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890_abcdefghijklmnop
> 0
> 
> #define
> this_define_has_512_chars_abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890_abcdefghijklmnopq
> 0
> >
> 
> What did you expect from it?
>  - I expected gtags to accept any symbol length that is supported by gcc
> (this file compiles fine).
> 
> What was occurred? (as is)
>  - buffer overflow in gtags. Empty GTAGS file is created.
> 
> -- 
> Iain Woolf
> 
> 
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> Bug-global mailing list
> address@hidden
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-- 
Shigio YAMAGUCHI <address@hidden>
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