+8.6.9/8.6.9 94/04/
+ Do all mail delivery completely disconnected from any terminal.
+ This provides consistency with daemon delivery and
+ may have some security implications.
+ Make sure that malloc doesn't get called with zero size,
+ since that fails on some systems. Reported by Ed
+ Hill of the University of Iowa.
+ Fix multi-line values for $e (SMTP greeting message). Reported
+ by Mike O'Connor of Ford Motor Company.
+ Avoid syserr if no NIS domain name is defined, but the map it
+ is trying to open is optional. From Win Bent of USC.
+ Changes for picky compilers from Ed Gould of Digital Equipment.
+ Hesiod support for UDB from Todd Miller of the University of
+ Colorado. Use "hesiod" as the service name in the U
+ option.
+ Fix a problem that failed to set the "authentic" host name (that
+ is, the one derived from the socket info) if you called
+ sendmail -bs from inetd. Based on code contributed by
+ Todd Miller (this problem was also reported by Guy Helmer
+ of Dakota State University). This also fixes a related
+ problem reported by Liudvikas Bukys of Rochester University.
+ Parameterize "nroff -h" in all the Makefiles so people with
+ variant versions can use them easily. Suggested by
+ Peter Collinson of Hillside Systems.
+ SMTP "MAIL" commands with multiple ESMTP parameters required two
+ spaces between parameters instead of one. Reported by
+ Valdis Kletnieks of Virginia Tech.
+ Reduce the number of system calls during message collection by
+ using global timeouts around the collect() loop. This
+ code was contributed by Eric Wassenaar.
+ If the initial hostname name gathering results in a name
+ without a dot (usually caused by NIS misconfiguration)
+ and BIND is compiled in, directly access DNS to get
+ the canonical name. This should make life easier for
+ Solaris systems. If it still can't be resolved, and
+ if the name server is listed as "required", try again
+ in 30 seconds. If that also fails, exit immediately to
+ avoid bogus "config error: mail loops back to myself"
+ messages.
+ Improve the "MAIL DELETED BECAUSE OF LACK OF DISK SPACE" error
+ message to explain how much space was available and
+ sound a bit less threatening. Suggested by Stan Janet
+ of the National Institute of Standards and Technology.
+ If mail is delivered to an alias that has an owner, deliver any
+ requested return-receipt immediately, and strip the
+ Return-Receipt-To: header from the subsequent message.
+ This prevents a certain class of denial of service
+ attack, arguably gives more reasonable semantics, and
+ moves things more towards what will probably become a
+ network standard. Suggested by Christopher Davis of
+ Kapor Enterprises.
+ Add a "noreceipts" privacy flag to turn off all return receipts
+ without recompiling.
+ Avoid printing ESMTP parameters as part of the error message
+ if there are errors during parsing. This change is
+ purely cosmetic.
+ Avoid sending out error messages during the collect phase of
+ SMTP; there is an MVS mailer from UCLA that gets
+ confused by this. Of course, I think it's their bug....
+ Check for the $j macro getting undefined, losing a dot, or getting
+ lost from $=w in the daemon before accepting a connection;
+ if it is, it dumps state, prints a LOG_ALERT message,
+ and drops core for debugging. This is an attempt to
+ track down a bug that I thought was long since gone.
+ If you see this, please forward the log fragment to
+ sendmail@CS.Berkeley.EDU.
+ Change OLD_NEWDB from a #ifdef to a #if so it can be turned off
+ with -DOLD_NEWDB=0 on the command line. From Christophe
+ Wolfhugel.
+ Instead of trying to truncate the listen queue for the server
+ SMTP port when the load average is too high, just close
+ the port completely and reopen it later as needed.
+ This ensures that the other end gets a quick "connection
+ refused" response, and that the connection can be
+ recovered later. In particular, some socket emulations
+ seem to get confused if you tweak the listen queue
+ size around and can never start listening to connections
+ again. The down side is that someone could start up
+ another daemon process in the interim, so you could
+ have multiple daemons all not listening to connections;
+ this could in turn cause the sendmail.pid file to be
+ incorrect. A better approach might be to accept the
+ connection and give a 421 code, but that could break
+ other mailers in mysterious ways and have paging behaviour
+ implications.
+ Fix a glitch in TCP-level debugging that caused flag 16.101 to
+ set debugging on the wrong socket. From Eric Wassenaar.
+ When creating a df* temporary file, be sure you truncate any
+ existing data in the file -- otherwise system crashes
+ and the like could result in extra data being sent.
+ DOC: Replace the CHANGES-R5-R8 readme file with a paper in the
+ doc directory. This includes some additional
+ information.
+ CONFIG: change UUCP rules to never add $U! or $k! on the front
+ of recipient envelope addresses. This should have been
+ handled by the $&h trick, but broke if people were
+ mixing domainized and UUCP addresses. They should
+ probably have converted all the way over to uucp-uudom
+ instead of uucp-{new,old}, but the failure mode was to
+ loop the mail, which was bad news.
+ Portability fixes:
+ Newer BSDI systems (several people).
+ Older BSDI systems from Christophe Wolfhugel.
+ Intergraph CLIX, from Paul Southworth of CICNet.
+ UnixWare, from Evan Champion.
+ NetBSD from Adam Glass.
+ Solaris from Quentin Campbell of the University of
+ Newcastle upon Tyne.
+ IRIX from Dean Cookson and Bill Driscoll of Mitre
+ Corporation.
+ NCR 3000 from Kevin Darcy of Chrysler Corporation.
+ SunOS (it has setsid() and setvbuf() calls) from
+ Jonathan Kamens of OpenVision Technologies.
+ HP-UX from Tor Lillqvist.
+ New Files:
+ src/Makefile.CLIX
+ src/Makefile.NCR3000
+ doc/changes/Makefile
+ doc/changes/changes.me
+ doc/changes/changes.ps
+
projects / unix-history / commitdiff