[GRASS-user] r.colors: stack smashing detected when large floatingpoint numbers added to rules

[Patton, Eric]

-----Original Message-----
From: Glynn Clements [mailto:glynn at gclements.plus.com]
Sent: Sat 6/2/2007 8:21 AM
To: Patton, Eric
Cc: grassuser at grass.itc.it
Subject: Re: [GRASS-user] r.colors: stack smashing detected when large floatingpoint numbers added to rules
 

Patton, Eric wrote:

> r.colors terminates if a large floating-point number is added to the rules list (specifically, 12 decimal places or more).
> 
> In spearfish:
> 
> $ r.colors map=elevation.10m color=rules
> Enter rules, "end" when done, "help" if you need it.
> fp: Data range is 1061.0640869999999722494976595 to 1846.74340800000004492176231
> >1061.064086999999 blue
> *** stack smashing detected ***: r.colors terminated
> Aborted (core dumped)
> 
> It's not crucial for me to be able to enter color rules this
> precisely, but r.colors should probably handle cases like these
> without crashing.

>Fixed in CVS (buffers enlarged from 16 bytes to 80 bytes).

Thanks Glynn, very much appreciated.

~ Eric.