4.4BSD snapshot (revision 8.1); add 1993 to copyright

integrate changes from bind 4.9 (most of them); continue to use address
INADDR_ANY rather than 127.1; convert u_short to u_int16_t as appropriate

return an error if dn_expand() returns -1

use inet_aton since it can distinguish 255.255.255.255

gethostbyname takes a const char *, not a char *

need ctype.h, shouldn't have deleted it

doesn't need ctype.h

Add include files to get prototype declarations, and fix bugs found.

make dn_skipname, fp_query, hostalias, p_cdname, p_class, p_query,
p_rr, p_time, p_type, putlong and putshort hidden

new copyright notice

put pathnames into netdb.h

terminate address, alias lists for gethostbyaddr

add gethostbyname(dotted quad); gethostbyaddr didn't set up structures
correctly for 4.2 systems

use strpbrk(3), not any

align doesn't need to occupy storage

lint cleanups

install approved copyright notice

trivia

oops

new version from Mike Karels

add Berkeley specific headers; checked in for Mike Karels

I give in, #ifdef on h_addr for those that are halfway to 43

maybe I'll find a way I like: try name from root even if search
up tree fails other ways; don't try single-component names at root
without trailing dot

disallow names consisting entirely of digits/dots unless they
end in a trailing dot

change dn_skip=>dn_skipname; bigger buffer; watch for bogus non-auth non-answer