There are a few bugs in dnrd that should probably be fixed
by the author but could be made to work on bsd:
1. Initialization in common.h of recv_addr is broken,
causing at least the '-a' switch not to work. Instead of
assuming positions of fields in the struct across platforms
I thought it safer to do a standard initialization in main().
2. The buffer overflow code in udp.c:dnsrecv() is off by
one, rejecting messages where the size exactly fills the
available buffer. I also changed to the calls to dnsrecv
to pass 512 as the max size instead of the buffers that
seem to be padded by 4 bytes for a reason I don't understand.
This causes a calling named to resend packets. Eventually
one seems to get through but response times can be painfully
slow.
PR: ports/41128
Submitted by: Michael C. Adler <mad1@tapil.com>
c90d26d28b