flexfax: bug in hfaxd module

[Uwe Schmeling <uschmeli@csa.de>]

Found a bug in module InetFaxServer.c++ in function topDomain:
if you enter this function with a domain-string containing a leading dot
i.e 'gibson.csa.de.' it will crash when assigning maybe = &h[l] (last
statement in for(;;) ), because this is an illegal access to
h[h.length()](one too much). This is with RedHat 5.0(linux). 

There still remains one problem: when starting a hfaxd child it will stop
with message: Assertion failed "Invalid Str[] index", file
".././util/Str.h" line 116. 
What does this message mean? 

regards Uwe