more attempts to trap fd 1 bug

avoid passing SIZE= parameter into rulesets

nbuf, not buf

add explicit check for sender address set to program or file

dynamically allocate (instead of static) several macros

repair OutChannel in queue runs

open file debugging

check for possibility of fdopen returning null

more attempts to find the fd 1 closed error

don't do PostMasterCopy on junk mail

fix screwed up error message returns in some situations

put in beginnings of mod time checks on maps; generalize flags
parameter to parseaddr/allocaddr to use RF_ hooks; relax HELO rules
for Authentication-Warning:s

be sure to always include angle braces on route-addrs

don't call newstr() macro with arguments with subroutine calls, since
it double-evaluates

better error message handling: don't create bogus return messages;
print both actual address and q_alias whereever possible

clean up error handling, including concept of local error handling

many fixes. primarily fix for seteuid problem in 8.2; also,
Solaris compatibility fixes; timed out messages problems; messages
silently discarded if checkcompat returned EX_TEMPFAIL

huge number of changes for 8.2, including IRIX & Solaris portability;
improved error checking; fix -m flag and add -O flag in maps; fix long
DNS timeouts; relax safefile restrictions; add -X command

huge number of changes for 8.2, including IRIX & Solaris portability;
improved error checking; fix -m flag and add -O flag in maps; fix long
DNS timeouts; relax safefile restrictions; add -X command line flag; etc.

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

prototype functions

if we are in Verbose mode, be sure to set sendmode to SM_DELIVER

move #include <sys/stat.h> into conf.h

make tty id buffer large enough for modern names

return status information from map lookups and from there from
rewrite; this allows higher level code to queue if the name server is down

implement $&x for deferred macro expansion; some POSIX compatibility