from Bryan Costales: several smallish changes, mostly to clean
up debugging output. The major change is that test mode (-bt)
doesn't automatically run through ruleset three any more.

change leading "local mailer" indicator to avoid conflict with
:include: lists

handle backslashes in addresses properly

allow catching of local names after aliasing but before local name
resolution; have name server return indication that it matched.

new copyright notice

sendmail security problems; bug report 4.3BSD/usr.lib/153
sendmail security problems; bug report 4.3BSD/usr.lib/133
sendmail security problems; bug report 4.3BSD/usr.lib/136

don't indirect through null, just because mc file messed up

remove DEBUG

install approved copyright notice

add Berkeley specific header

replace sameword with strcasecmp

don't run around clearing EF_FATALERRS -- this often applies to another
address. Drop uid/gid check in sameaddr -- it causes more problems
than it fixes.

fix .forward files that include yourself; this was a bug in sameaddr
that may have caused some other problems

don't consider addresses with different q_uid's alike

don't create a queue name in syserr; permit trailing blanks and quoted
commas in aliases.

incorporate SMI changes -- still experimental

SMI changes (somewhat)

bring to release 5 (like all the other files)

lint

Resolve duplicate SccsId. Remove unused variables. Correct
return.

use the recipient rewriting set for parsed addresses

Try to use flock call (this doesn't work because we don't always have an
open fd); security and performance fixes from Kirk Smith at Purdue; "a"
option is now the number of minutes to wait for "@:@"

Try to use flock call (this doesn't work because we don't always have an
open fd); security and performance fixes from Kirk Smith at Purdue; "a"
option is now the number of minutes to wait for "@:@" alias; fix bug in
$[ $] using -t; random cleanup

show more ...

bmove => bcopy

fix absurd trivial botch in previous change

fix hostname mapping to be repeatable (as required by some .cf files).