[vdr] trouble with asprintf

[Ludwig Nussel]

Udo Richter wrote:
> Wolfgang Rohdewald wrote:
> > since asprintf leads to segfaults if feeded with incorrect UTF-8 characters,
> > I wanted to write a wrapper function which would then check the return value
> > of asprintf. 
> 
> I never understood what the problem is with utf8 and asprintf, since 
> utf8 is mostly ASCIIZ backwards compatible, and asprintf probably 
> doesn't even know the difference between utf8 and ascii. What special 
> handling does asprintf with utf8? Is there some example that causes the 
> trouble?

asprintf needs to check for multibyte characters to not cut them in
the middle and produce invalid output.

cu
Ludwig

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