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

[Patton, Eric]

Hi,

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.

~ Eric.