that uses it

precaution to prevent mistakes to lead to buffer overflows.

of typecasts all over

linked list for name resolved data, even on hosts/systems with only IPv4
stacks as this simplifies a lot of code.

status more obvious

started complaining since it won't be reached... So I removed the call to
abort() and just return -1 instead. abort() was wrong to call anyway since
this is a library!

contain least 4096 bytes while libcurl only allowed 2047. I raised the limit
to 4999 now and made the used buffer get malloc()ed instead of simply
allocated on stack as before.

ifdef'ed test we never ever use anyway.