h_errno now in conf.h

another wildcard MX hack

change bestmx map to not do resolver domain searching (RES_DNSRCH)

improved wildcard MX handling

add DontExpandCnames option -- IETF seems to be moving in this direction

improved debugging

lint

don't leave rcode uninitialized if everything is OK

don't have getmxrr return 1 for unknown addresses

fix compile problems on various platforms

put getcanonname into service switch

update copyright notice

eliminate unnecessary redundant #include

pull getpwXXX and gethostbyXXX calls out into conf.c so they can
be tweaked

improved security when opening files

avoid possible attacks against hidden files; this isn't perfect

fix some race conditions for file opens

cleanup to make gcc -Winitialized happier

use wordinclass() abstraction for searching classes

if MX lookup fails, the name may still be good (because of NIS
or /etc/hosts entries) -- don't reject it too quickly

set UseNameServer on the basis of whether "dns" is in the service switch

get it to compile on other environments

first cut at service switch abstraction

try to auto-adapt to misconfigured /etc/hosts file that have
short names preceding the long names

eliminate compiler warning