Re: Fixes segfault in beam quanting. (issue4339047)

[Trevor Daniels]

Werner LEMBERG wrote Sunday, April 03, 2011 7:16 AM

> > (lily segfaults all the time when I accidentally feed her a PDF 
> > file
> > instead of a .ly file, but I don't consider this to be a bug)
>
> I do.  Any user program *must not* produce a segfault IMHO if fed 
> with
> user data, regardless of its origin.

+1

> While developing FreeType, various people (including myself) used
> fuzzers to create invalid fonts which are then read by FreeType. 
> This
> led to the discovery of a few dozen bugs...
>
> Perhaps something similar can be done for LilyPond also.  You 
> might
> have a look at the `ftrandom' utility program in the source code 
> of
> FreeType; it should be rather straightforward to adapt it.

This or some alternative sounds like a fun project for 2.15.

Trevor