dns cert support

[Werner Koch]

On Wed, 5 Apr 2006 10:02:28 +0200, Peter Palfrader said:

> +      const char *tmp = fpr;
> +      while (*tmp)
> +	{
> +	  if (isxdigit(*tmp))

Will segv on many non-glibc systems if you pass non-ascii characters
to it.  Never ever use isfoo functions without additional checks.


Salam-Shalom,

   Werner