diff options
Diffstat (limited to 'usr.sbin/sendmail/cf/m4/proto.m4')
| -rw-r--r-- | usr.sbin/sendmail/cf/m4/proto.m4 | 818 |
1 files changed, 818 insertions, 0 deletions
diff --git a/usr.sbin/sendmail/cf/m4/proto.m4 b/usr.sbin/sendmail/cf/m4/proto.m4 new file mode 100644 index 000000000000..2397c4a7f6f1 --- /dev/null +++ b/usr.sbin/sendmail/cf/m4/proto.m4 @@ -0,0 +1,818 @@ +divert(-1) +# +# Copyright (c) 1983, 1995 Eric P. Allman +# Copyright (c) 1988, 1993 +# The Regents of the University of California. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. All advertising materials mentioning features or use of this software +# must display the following acknowledgement: +# This product includes software developed by the University of +# California, Berkeley and its contributors. +# 4. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +divert(0) + +VERSIONID(`@(#)proto.m4 8.99 (Berkeley) 11/18/95') + +MAILER(local)dnl + +# level 6 config file format +V6/Berkeley +divert(-1) + +# do some sanity checking +ifdef(`__OSTYPE__',, + `errprint(`*** ERROR: No system type defined (use OSTYPE macro)')') + +# pick our default mailers +ifdef(`confSMTP_MAILER',, `define(`confSMTP_MAILER', `smtp')') +ifdef(`confLOCAL_MAILER',, `define(`confLOCAL_MAILER', `local')') +ifdef(`confRELAY_MAILER',, + `define(`confRELAY_MAILER', + `ifdef(`_MAILER_smtp_', `relay', + `ifdef(`_MAILER_uucp', `uucp-new', `unknown')')')') +ifdef(`confUUCP_MAILER',, `define(`confUUCP_MAILER', `uucp-old')') +define(`_SMTP_', `confSMTP_MAILER')dnl for readability only +define(`_LOCAL_', `confLOCAL_MAILER')dnl for readability only +define(`_RELAY_', `confRELAY_MAILER')dnl for readability only +define(`_UUCP_', `confUUCP_MAILER')dnl for readability only + +# back compatibility with old config files +ifdef(`confDEF_GROUP_ID', + `errprint(`*** confDEF_GROUP_ID is obsolete.') + errprint(` Use confDEF_USER_ID with a colon in the value instead.')') +ifdef(`confREAD_TIMEOUT', + `errprint(`*** confREAD_TIMEOUT is obsolete.') + errprint(` Use individual confTO_<timeout> parameters instead.')') +ifdef(`confMESSAGE_TIMEOUT', + `define(`_ARG_', index(confMESSAGE_TIMEOUT, /)) + ifelse(_ARG_, -1, + `define(`confTO_QUEUERETURN', confMESSAGE_TIMEOUT)', + `define(`confTO_QUEUERETURN', + substr(confMESSAGE_TIMEOUT, 0, _ARG_)) + define(`confTO_QUEUEWARN', + substr(confMESSAGE_TIMEOUT, eval(_ARG_+1)))')') +ifdef(`confMIN_FREE_BLOCKS', `ifelse(index(confMIN_FREE_BLOCKS, /), -1,, + `errprint(`*** compound confMIN_FREE_BLOCKS is obsolete.') + errprint(` Use confMAX_MESSAGE_SIZE for the second part of the value.')')') + +# clean option definitions below.... +define(`_OPTION', `ifdef(`$2', `O $1=$2', `#O $1`'ifelse($3, `',, `=$3')')')dnl + +divert(0)dnl + +################## +# local info # +################## + +Cwlocalhost +ifdef(`USE_CW_FILE', +`# file containing names of hosts for which we receive email +Fw`'confCW_FILE', + `dnl') + +# my official domain name +# ... define this only if sendmail cannot automatically determine your domain +ifdef(`confDOMAIN_NAME', `Dj`'confDOMAIN_NAME', `#Dj$w.Foo.COM') + +ifdef(`_NULL_CLIENT_ONLY_', `divert(-1)')dnl + +CP. + +ifdef(`UUCP_RELAY', +`# UUCP relay host +DY`'UUCP_RELAY +CPUUCP + +')dnl +ifdef(`BITNET_RELAY', +`# BITNET relay host +DB`'BITNET_RELAY +CPBITNET + +')dnl +ifdef(`DECNET_RELAY', +`define(`_USE_DECNET_SYNTAX_', 1)dnl +# DECnet relay host +DC`'DECNET_RELAY +CPDECNET + +')dnl +ifdef(`FAX_RELAY', +`# FAX relay host +DF`'FAX_RELAY +CPFAX + +')dnl +# "Smart" relay host (may be null) +DS`'ifdef(`SMART_HOST', SMART_HOST) + +# place to which unknown users should be forwarded +ifdef(`LUSER_RELAY', `', `#')dnl +Kuser user -m -a<> +ifdef(`LUSER_RELAY', + `DL`'LUSER_RELAY', + `#DLname_of_luser_relay') + +# operators that cannot be in local usernames (i.e., network indicators) +CO @ % ifdef(`_NO_UUCP_', `', `!') + +# a class with just dot (for identifying canonical names) +C.. + +# Mailer table (overriding domains) +ifdef(`MAILER_TABLE', + `Kmailertable MAILER_TABLE', + `#Kmailertable dbm /etc/mailertable') + +# Domain table (adding domains) +ifdef(`DOMAIN_TABLE', + `Kdomaintable DOMAIN_TABLE', + `#Kdomaintable dbm /etc/domaintable') + +# who I send unqualified names to (null means deliver locally) +DR`'ifdef(`LOCAL_RELAY', LOCAL_RELAY) + +# who gets all local email traffic ($R has precedence for unqualified names) +DH`'ifdef(`MAIL_HUB', MAIL_HUB) + +# class L: names that should be delivered locally, even if we have a relay +# class E: names that should be exposed as from this host, even if we masquerade +# class M: domains that should be converted to $M +#CL root +CE root +undivert(5)dnl + +# dequoting map +Kdequote dequote + +divert(0)dnl # end of nullclient diversion +# who I masquerade as (null for no masquerading) (see also $=M) +DM`'ifdef(`MASQUERADE_NAME', MASQUERADE_NAME) + +# my name for error messages +ifdef(`confMAILER_NAME', `Dn`'confMAILER_NAME', `#DnMAILER-DAEMON') + +undivert(6)dnl +include(_CF_DIR_`m4/version.m4') + +############### +# Options # +############### + +# strip message body to 7 bits on input? +_OPTION(SevenBitInput, `confSEVEN_BIT_INPUT') + +# 8-bit data handling +_OPTION(EightBitMode, `confEIGHT_BIT_HANDLING', adaptive) + +ifdef(`_NULL_CLIENT_ONLY_', `dnl', ` +# wait for alias file rebuild (default units: minutes) +_OPTION(AliasWait, `confALIAS_WAIT', 5m) + +# location of alias file +O AliasFile=ifdef(`ALIAS_FILE', `ALIAS_FILE', /etc/aliases) +') +# minimum number of free blocks on filesystem +_OPTION(MinFreeBlocks, `confMIN_FREE_BLOCKS', 100) + +# maximum message size +_OPTION(MaxMessageSize, `confMAX_MESSAGE_SIZE', 1000000) + +# substitution for space (blank) characters +_OPTION(BlankSub, `confBLANK_SUB', _) + +# avoid connecting to "expensive" mailers on initial submission? +_OPTION(HoldExpensive, `confCON_EXPENSIVE') + +# checkpoint queue runs after every N successful deliveries +_OPTION(CheckpointInterval, `confCHECKPOINT_INTERVAL', 10) + +# default delivery mode +_OPTION(DeliveryMode, `confDELIVERY_MODE', background) + +# automatically rebuild the alias database? +_OPTION(AutoRebuildAliases, `confAUTO_REBUILD') + +# error message header/file +_OPTION(ErrorHeader, `confERROR_MESSAGE', /etc/sendmail.oE) + +# error mode +_OPTION(ErrorMode, `confERROR_MODE', print) + +# save Unix-style "From_" lines at top of header? +_OPTION(SaveFromLine, `confSAVE_FROM_LINES') + +# temporary file mode +_OPTION(TempFileMode, `confTEMP_FILE_MODE', 0600) + +# match recipients against GECOS field? +_OPTION(MatchGECOS, `confMATCH_GECOS') + +# maximum hop count +_OPTION(MaxHopCount, `confMAX_HOP', 17) + +# location of help file +O HelpFile=ifdef(`HELP_FILE', HELP_FILE, /usr/lib/sendmail.hf) + +# ignore dots as terminators in incoming messages? +_OPTION(IgnoreDots, `confIGNORE_DOTS') + +# name resolver options +_OPTION(ResolverOptions, `confBIND_OPTS', +AAONLY) + +# deliver MIME-encapsulated error messages? +_OPTION(SendMimeErrors, `confMIME_FORMAT_ERRORS') + +# Forward file search path +_OPTION(ForwardPath, `confFORWARD_PATH', /var/forward/$u:$z/.forward.$w:$z/.forward) + +# open connection cache size +_OPTION(ConnectionCacheSize, `confMCI_CACHE_SIZE', 2) + +# open connection cache timeout +_OPTION(ConnectionCacheTimeout, `confMCI_CACHE_TIMEOUT', 5m) + +# use Errors-To: header? +_OPTION(UseErrorsTo, `confUSE_ERRORS_TO') + +# log level +_OPTION(LogLevel, `confLOG_LEVEL', 10) + +# send to me too, even in an alias expansion? +_OPTION(MeToo, `confME_TOO') + +# verify RHS in newaliases? +_OPTION(CheckAliases, `confCHECK_ALIASES') + +# default messages to old style headers if no special punctuation? +_OPTION(OldStyleHeaders, `confOLD_STYLE_HEADERS') + +# SMTP daemon options +_OPTION(DaemonPortOptions, `confDAEMON_OPTIONS', Port=esmtp) + +# privacy flags +_OPTION(PrivacyOptions, `confPRIVACY_FLAGS', authwarnings) + +# who (if anyone) should get extra copies of error messages +_OPTION(PostMasterCopy, `confCOPY_ERRORS_TO', Postmaster) + +# slope of queue-only function +_OPTION(QueueFactor, `confQUEUE_FACTOR', 600000) + +# queue directory +O QueueDirectory=ifdef(`QUEUE_DIR', QUEUE_DIR, /var/spool/mqueue) + +# timeouts (many of these) +_OPTION(Timeout.initial, `confTO_INITIAL', 5m) +_OPTION(Timeout.helo, `confTO_HELO', 5m) +_OPTION(Timeout.mail, `confTO_MAIL', 10m) +_OPTION(Timeout.rcpt, `confTO_RCPT', 1h) +_OPTION(Timeout.datainit, `confTO_DATAINIT', 5m) +_OPTION(Timeout.datablock, `confTO_DATABLOCK', 1h) +_OPTION(Timeout.datafinal, `confTO_DATAFINAL', 1h) +_OPTION(Timeout.rset, `confTO_RSET', 5m) +_OPTION(Timeout.quit, `confTO_QUIT', 2m) +_OPTION(Timeout.misc, `confTO_MISC', 2m) +_OPTION(Timeout.command, `confTO_COMMAND', 1h) +_OPTION(Timeout.ident, `confTO_IDENT', 30s) +_OPTION(Timeout.fileopen, `confTO_FILEOPEN', 60s) +_OPTION(Timeout.queuereturn, `confTO_QUEUERETURN', 5d) +_OPTION(Timeout.queuereturn.normal, `confTO_QUEUERETURN_NORMAL', 5d) +_OPTION(Timeout.queuereturn.urgent, `confTO_QUEUERETURN_URGENT', 2d) +_OPTION(Timeout.queuereturn.non-urgent, `confTO_QUEUERETURN_NONURGENT', 7d) +_OPTION(Timeout.queuewarn, `confTO_QUEUEWARN', 4h) +_OPTION(Timeout.queuewarn.normal, `confTO_QUEUEWARN_NORMAL', 4h) +_OPTION(Timeout.queuewarn.urgent, `confTO_QUEUEWARN_URGENT', 1h) +_OPTION(Timeout.queuewarn.non-urgent, `confTO_QUEUEWARN_NONURGENT', 12h) + +# should we not prune routes in route-addr syntax addresses? +_OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES') + +# queue up everything before forking? +_OPTION(SuperSafe, `confSAFE_QUEUE') + +# status file +O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', /etc/sendmail.st) + +# time zone handling: +# if undefined, use system default +# if defined but null, use TZ envariable passed in +# if defined and non-null, use that info +ifelse(confTIME_ZONE, `USE_SYSTEM', `#O TimeZoneSpec=', + confTIME_ZONE, `USE_TZ', `O TimeZoneSpec=', + `O TimeZoneSpec=confTIME_ZONE') + +# default UID (can be username or userid:groupid) +_OPTION(DefaultUser, `confDEF_USER_ID', nobody) + +# list of locations of user database file (null means no lookup) +_OPTION(UserDatabaseSpec, `confUSERDB_SPEC', /etc/userdb) + +# fallback MX host +_OPTION(FallbackMXhost, `confFALLBACK_MX', fall.back.host.net) + +# if we are the best MX host for a site, try it directly instead of config err +_OPTION(TryNullMXList, `confTRY_NULL_MX_LIST') + +# load average at which we just queue messages +_OPTION(QueueLA, `confQUEUE_LA', 8) + +# load average at which we refuse connections +_OPTION(RefuseLA, `confREFUSE_LA', 12) + +# work recipient factor +_OPTION(RecipientFactor, `confWORK_RECIPIENT_FACTOR', 30000) + +# deliver each queued job in a separate process? +_OPTION(ForkEachJob, `confSEPARATE_PROC') + +# work class factor +_OPTION(ClassFactor, `confWORK_CLASS_FACTOR', 1800) + +# work time factor +_OPTION(RetryFactor, `confWORK_TIME_FACTOR', 90000) + +# shall we sort the queue by hostname first? +_OPTION(QueueSortOrder, `confQUEUE_SORT_ORDER', priority) + +# minimum time in queue before retry +_OPTION(MinQueueAge, `confMIN_QUEUE_AGE', 30m) + +# default character set +_OPTION(DefaultCharSet, `confDEF_CHAR_SET', iso-8859-1) + +# service switch file (ignored on Solaris, Ultrix, OSF/1, others) +_OPTION(ServiceSwitchFile, `confSERVICE_SWITCH_FILE', /etc/service.switch) + +# dialup line delay on connection failure +_OPTION(DialDelay, `confDIAL_DELAY', 10s) + +# action to take if there are no recipients in the message +_OPTION(NoRecipientAction, `confNO_RCPT_ACTION', add-to-undisclosed) + +# chrooted environment for writing to files +_OPTION(SafeFileEnvironment, `confSAFE_FILE_ENV', /arch) + +# are colons OK in addresses? +_OPTION(ColonOkInAddr, `confCOLON_OK_IN_ADDR') + +# how many jobs can you process in the queue? +_OPTION(MaxQueueRunSize, `confMAX_QUEUE_RUN_SIZE', 10000) + +# shall I avoid expanding CNAMEs (violates protocols)? +_OPTION(DontExpandCnames, `confDONT_EXPAND_CNAMES') + +# SMTP initial login message (old $e macro) +_OPTION(SmtpGreetingMessage, `confSMTP_LOGIN_MSG') + +# UNIX initial From header format (old $l macro) +_OPTION(UnixFromLine, `confFROM_LINE') + +# delimiter (operator) characters (old $o macro) +_OPTION(OperatorChars, `confOPERATORS') + +# shall I avoid calling initgroups(3) because of high NIS costs? +_OPTION(DontInitGroups, `confDONT_INIT_GROUPS') + +########################### +# Message precedences # +########################### + +Pfirst-class=0 +Pspecial-delivery=100 +Plist=-30 +Pbulk=-60 +Pjunk=-100 + +##################### +# Trusted users # +##################### + +# this is equivalent to setting class "t" +ifdef(`_USE_CT_FILE_', `', `#')Ft`'ifdef(`confCT_FILE', confCT_FILE, `/etc/sendmail.ct') +Troot +Tdaemon +Tuucp +ifdef(`confTRUSTED_USERS', `T`'confTRUSTED_USERS', `dnl') + +######################### +# Format of headers # +######################### + +ifdef(`confFROM_HEADER',, `define(`confFROM_HEADER', `$?x$x <$g>$|$g$.')')dnl +H?P?Return-Path: $g +HReceived: confRECEIVED_HEADER +H?D?Resent-Date: $a +H?D?Date: $a +H?F?Resent-From: confFROM_HEADER +H?F?From: confFROM_HEADER +H?x?Full-Name: $x +HSubject: +# HPosted-Date: $a +# H?l?Received-Date: $b +H?M?Resent-Message-Id: <$t.$i@$j> +H?M?Message-Id: <$t.$i@$j> +ifdef(`_NULL_CLIENT_ONLY_', + `include(_CF_DIR_`'m4/nullrelay.m4)m4exit', + `dnl') +# +###################################################################### +###################################################################### +##### +##### REWRITING RULES +##### +###################################################################### +###################################################################### + +undivert(9)dnl + +########################################### +### Rulset 3 -- Name Canonicalization ### +########################################### +S3 + +# handle null input (translate to <@> special case) +R$@ $@ <@> + +# strip group: syntax (not inside angle brackets!) and trailing semicolon +R$* $: $1 <@> mark addresses +R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr> +R$* :: $* <@> $: $1 :: $2 unmark node::addr +R:`include': $* <@> $: :`include': $1 unmark :`include':... +R$* : $* <@> $: $2 strip colon if marked +R$* <@> $: $1 unmark +R$* ; $: $1 strip trailing semi + +# null input now results from list:; syntax +R$@ $@ :; <@> + +# strip angle brackets -- note RFC733 heuristic to get innermost item +R$* $: < $1 > housekeeping <> +R$+ < $* > < $2 > strip excess on left +R< $* > $+ < $1 > strip excess on right +R<> $@ < @ > MAIL FROM:<> case +R< $+ > $: $1 remove housekeeping <> + +# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later +R@ $+ , $+ @ $1 : $2 change all "," to ":" + +# localize and dispose of route-based addresses +R@ $+ : $+ $@ $>96 < @$1 > : $2 handle <route-addr> + +# find focus for list syntax +R $+ : $* ; @ $+ $@ $>96 $1 : $2 ; < @ $3 > list syntax +R $+ : $* ; $@ $1 : $2; list syntax + +# find focus for @ syntax addresses +R$+ @ $+ $: $1 < @ $2 > focus on domain +R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right +R$+ < @ $+ > $@ $>96 $1 < @ $2 > already canonical + +# do some sanity checking +R$* < @ $* : $* > $* $1 < @ $2 $3 > $4 nix colons in addrs + +ifdef(`_NO_UUCP_', `dnl', +`# convert old-style addresses to a domain-based address +R$- ! $+ $@ $>96 $2 < @ $1 .UUCP > resolve uucp names +R$+ . $- ! $+ $@ $>96 $3 < @ $1 . $2 > domain uucps +R$+ ! $+ $@ $>96 $2 < @ $1 .UUCP > uucp subdomains +') +ifdef(`_USE_DECNET_SYNTAX_', +`# convert node::user addresses into a domain-based address +R$- :: $+ $@ $>96 $2 < @ $1 .DECNET > resolve DECnet names +R$- . $- :: $+ $@ $>96 $3 < @ $1.$2 .DECNET > numeric DECnet addr +', + `dnl') +# if we have % signs, take the rightmost one +R$* % $* $1 @ $2 First make them all @s. +R$* @ $* @ $* $1 % $2 @ $3 Undo all but the last. +R$* @ $* $@ $>96 $1 < @ $2 > Insert < > and finish + +# else we must be a local name +R$* $@ $>96 $1 + + +################################################ +### Ruleset 96 -- bottom half of ruleset 3 ### +################################################ + +S96 + +# handle special cases for local names +R$* < @ localhost > $* $: $1 < @ $j . > $2 no domain at all +R$* < @ localhost . $m > $* $: $1 < @ $j . > $2 local domain +ifdef(`_NO_UUCP_', `dnl', +`R$* < @ localhost . UUCP > $* $: $1 < @ $j . > $2 .UUCP domain') +R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [a.b.c.d] +R$* < @@ $=w > $* $: $1 < @ $j . > $3 self-literal +R$* < @@ $+ > $* $@ $1 < @ $2 > $3 canon IP addr + +# look up domains in the domain table +ifdef(`DOMAIN_TABLE', `', `#')dnl +R$* < @ $+ > $* $: $1 < @ $(domaintable $2 $) > $3 + +undivert(2)dnl + +ifdef(`_NO_UUCP_', `dnl', +`ifdef(`UUCP_RELAY', +`# pass UUCP addresses straight through +R$* < @ $+ . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', +`# if really UUCP, handle it immediately +ifdef(`_CLASS_U_', +`R$* < @ $=U . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl') +ifdef(`_CLASS_V_', +`R$* < @ $=V . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl') +ifdef(`_CLASS_W_', +`R$* < @ $=W . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl') +ifdef(`_CLASS_X_', +`R$* < @ $=X . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl') +ifdef(`_CLASS_Y_', +`R$* < @ $=Y . UUCP > $* $@ $1 < @ $2 . UUCP . > $3', `dnl') + +# try UUCP traffic as a local address +R$* < @ $+ . UUCP > $* $: $1 < @ $[ $2 $] . UUCP . > $3 +R$* < @ $+ . . UUCP . > $* $@ $1 < @ $2 . > $3') +') +ifdef(`_NO_CANONIFY_', `dnl', +`# pass to name server to make hostname canonical +R$* < @ $* $~P > $* $: $1 < @ $[ $2 $3 $] > $4') + +# local host aliases and pseudo-domains are always canonical +R$* < @ $=w > $* $: $1 < @ $2 . > $3 +R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4 +R$* < @ $* . . > $* $1 < @ $2 . > $3 + +# if this is the local hostname, make sure we treat is as canonical +R$* < @ $j > $* $: $1 < @ $j . > $2 + + +################################################## +### Ruleset 4 -- Final Output Post-rewriting ### +################################################## +S4 + +R$* <@> $@ handle <> and list:; + +# strip trailing dot off possibly canonical name +R$* < @ $+ . > $* $1 < @ $2 > $3 + +# eliminate internal code -- should never get this far! +R$* < @ *LOCAL* > $* $1 < @ $j > $2 + +# externalize local domain info +R$* < $+ > $* $1 $2 $3 defocus +R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3 <route-addr> canonical +R@ $* $@ @ $1 ... and exit + +ifdef(`_NO_UUCP_', `dnl', +`# UUCP must always be presented in old form +R$+ @ $- . UUCP $2!$1 u@h.UUCP => h!u') + +ifdef(`_USE_DECNET_SYNTAX_', +`# put DECnet back in :: form +R$+ @ $+ . DECNET $2 :: $1 u@h.DECNET => h::u', + `dnl') +# delete duplicate local names +R$+ % $=w @ $=w $1 @ $j u%host@host => u@host + + + +############################################################## +### Ruleset 97 -- recanonicalize and call ruleset zero ### +### (used for recursive calls) ### +############################################################## + +S`'97 +R$* $: $>3 $1 +R$* $@ $>0 $1 + + +###################################### +### Ruleset 0 -- Parse Address ### +###################################### + +S0 + +R<@> $#_LOCAL_ $: <@> special case error msgs +R$* : $* ; <@> $#error $@ 5.1.3 $: "list:; syntax illegal for recipient addresses" +R<@ $+> $#error $@ 5.1.1 $: "user address required" +R$* <$* : $* > $* $#error $@ 5.1.1 $: "colon illegal in host name part" +R$* < @ . > $* $#error $@ 5.1.2 $: "invalid host name" + +ifdef(`_MAILER_smtp_', +`# handle numeric address spec +R$* < @ [ $+ ] > $* $: $>98 $1 < @ [ $2 ] > $3 numeric internet spec +R$* < @ [ $+ ] > $* $#_SMTP_ $@ [$2] $: $1 < @ [$2] > $3 still numeric: send', + `dnl') + +# now delete the local info -- note $=O to find characters that cause forwarding +R$* < @ > $* $@ $>97 $1 user@ => user +R< @ $=w . > : $* $@ $>97 $2 @here:... -> ... +R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here +R$* $=O $* < @ $=w . > $@ $>97 $1 $2 $3 ...@here -> ... + +# handle local hacks +R$* $: $>98 $1 + +# short circuit local delivery so forwarded email works +ifdef(`_MAILER_usenet_', +`R$+ . USENET < @ $=w . > $#usenet $: $1 handle usenet specially', + `dnl') +ifdef(`_STICKY_LOCAL_DOMAIN_', +`R$+ < @ $=w . > $: < $H > $1 < @ $2 . > first try hub +R< $+ > $+ < $+ > $>95 < $1 > $2 < $3 > yep .... +R< > $+ + $* < $+ > $#_LOCAL_ $: $1 + $2 plussed name? +R< > $+ < $+ > $#_LOCAL_ $: @ $1 nope, local address', +`R$=L < @ $=w . > $#_LOCAL_ $: @ $1 special local names +R$+ < @ $=w . > $#_LOCAL_ $: $1 regular local name') + +define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl +# not local -- try mailer table lookup +X`'R$* <@ $+ > $* $: < $2 > $1 < @ $2 > $3 extract host name +X`'R< $+ . > $* $: < $1 > $2 strip trailing dot +X`'R< $+ > $* $: < $(mailertable $1 $) > $2 lookup +X`'R< error : $- $+ > $* $#error $@ $1 $: $2 check -- error? +X`'R< $- : $+ > $* $# $1 $@ $2 $: $3 check -- resolved? +X`'R< $+ > $* $: $>90 <$1> $2 try domain +undefine(`X')dnl +undivert(4)dnl + +ifdef(`_NO_UUCP_', `dnl', +`# resolve remotely connected UUCP links (if any) +ifdef(`_CLASS_V_', +`R$* < @ $=V . UUCP . > $* $: $>95 < $V > $1 <@$2.UUCP.> $3', + `dnl') +ifdef(`_CLASS_W_', +`R$* < @ $=W . UUCP . > $* $: $>95 < $W > $1 <@$2.UUCP.> $3', + `dnl') +ifdef(`_CLASS_X_', +`R$* < @ $=X . UUCP . > $* $: $>95 < $X > $1 <@$2.UUCP.> $3', + `dnl')') + +# resolve fake top level domains by forwarding to other hosts +ifdef(`BITNET_RELAY', +`R$*<@$+.BITNET.>$* $: $>95 < $B > $1 <@$2.BITNET.> $3 user@host.BITNET', + `dnl') +ifdef(`DECNET_RELAY', +`R$*<@$+.DECNET.>$* $: $>95 < $C > $1 <@$2.DECNET.> $3 user@host.DECNET', + `dnl') +ifdef(`_MAILER_pop_', +`R$+ < @ POP. > $#pop $: $1 user@POP', + `dnl') +ifdef(`_MAILER_fax_', +`R$+ < @ $+ .FAX. > $#fax $@ $2 $: $1 user@host.FAX', +`ifdef(`FAX_RELAY', +`R$*<@$+.FAX.>$* $: $>95 < $F > $1 <@$2.FAX.> $3 user@host.FAX', + `dnl')') + +ifdef(`UUCP_RELAY', +`# forward non-local UUCP traffic to our UUCP relay +R$*<@$*.UUCP.>$* $: $>95 < $Y > $1 <@$2.UUCP.> $3 uucp mail', +`ifdef(`_MAILER_uucp_', +`# forward other UUCP traffic straight to UUCP +R$* < @ $+ .UUCP. > $* $#_UUCP_ $@ $2 $: $1 < @ $2 .UUCP. > $3 user@host.UUCP', + `dnl')') +ifdef(`_MAILER_usenet_', ` +# addresses sent to net.group.USENET will get forwarded to a newsgroup +R$+ . USENET $#usenet $: $1', + `dnl') + +ifdef(`_LOCAL_RULES_', +`# figure out what should stay in our local mail system +undivert(1)', `dnl') + +# pass names that still have a host to a smarthost (if defined) +R$* < @ $* > $* $: $>95 < $S > $1 < @ $2 > $3 glue on smarthost name + +# deal with other remote names +ifdef(`_MAILER_smtp_', +`R$* < @$* > $* $#_SMTP_ $@ $2 $: $1 < @ $2 > $3 user@host.domain', +`R$* < @$* > $* $#error $@ 5.1.2 $: Unrecognized host name $2') + +# if this is quoted, strip the quotes and try again +R$+ $: $(dequote $1 $) strip quotes +R$+ $=O $+ $@ $>97 $1 $2 $3 try again + +# handle locally delivered names +R$=L $#_LOCAL_ $: @ $1 special local names +R$+ $#_LOCAL_ $: $1 regular local names + +########################################################################### +### Ruleset 5 -- special rewriting after aliases have been expanded ### +########################################################################### + +S5 + +# deal with plussed users so aliases work nicely +R$+ + * $#_LOCAL_ $@ $&h $: $1 +R$+ + $* $#_LOCAL_ $@ $2 $: $1 + * + +# prepend an empty "forward host" on the front +R$+ $: <> $1 + +define(`X', ifdef(`LUSER_RELAY', `', `#'))dnl +# send unrecognized local users to a relay host +X`'R< > $+ + $* $: < $L . > $( user $1 $) + $2 +X`'R< > $+ $: < $L . > $( user $1 $) look up user +X`'R< $* > $+ <> $* $: < > $2 $3 found; strip $L +X`'R< $* . > $+ $: < $1 > $2 strip extra dot +undefine(`X')dnl + +# handle plussed local names +R< > $+ + $* $#_LOCAL_ $@ $2 $: $1 + +# see if we have a relay or a hub +R< > $+ $: < $H > $1 try hub +R< > $+ $: < $R > $1 try relay +R< > $+ $@ $1 nope, give up +R< $- : $+ > $+ $: $>95 < $1 : $2 > $3 < @ $2 > +R< $+ > $+ $@ $>95 < $1 > $2 < @ $1 > + +################################################################### +### Ruleset 90 -- try domain part of mailertable entry ### +################################################################### + +define(`X', ifdef(`MAILER_TABLE', `', `#'))dnl +X`'S90 +X`'R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4 +X`'R$* <$- : $+ > $* $# $2 $@ $3 $: $4 check -- resolved? +X`'R$* < . $+ > $* $@ $>90 $1 . <$2> $3 no -- strip & try again +X`'R$* < $* > $* $: < $(mailertable . $@ $1$2 $) > $3 try "." +X`'R<$- : $+ > $* $# $1 $@ $2 $: $3 "." found? +X`'R< $* > $* $@ $2 no mailertable match +undefine(`X')dnl + +################################################################### +### Ruleset 95 -- canonify mailer:host syntax to triple ### +################################################################### + +S95 +R< > $* $@ $1 strip off null relay +R< $- : $+ > $* $# $1 $@ $2 $: $3 try qualified mailer +R< $=w > $* $@ $2 delete local host +R< $+ > $* $#_RELAY_ $@ $1 $: $2 use unqualified mailer + +################################################################### +### Ruleset 93 -- convert header names to masqueraded form ### +################################################################### + +S93 +R$=E < @ *LOCAL* > $@ $1 < @ $j . > leave exposed +R$=E < @ $=M . > $@ $1 < @ $2 . > +ifdef(`_LIMITED_MASQUERADE_', `#')dnl +R$=E < @ $=w . > $@ $1 < @ $2 . > +R$* < @ $=M . > $* $: $1 < @ $2 . @ $M > $3 convert masqueraded doms +ifdef(`_LIMITED_MASQUERADE_', `#')dnl +R$* < @ $=w . > $* $: $1 < @ $2 . @ $M > $3 +R$* < @ *LOCAL* > $* $: $1 < @ $j . @ $M > $2 +R$* < @ $+ @ > $* $@ $1 < @ $2 > $3 $M is null +R$* < @ $+ @ $+ > $* $@ $1 < @ $3 . > $4 $M is not null + +################################################################### +### Ruleset 94 -- convert envelope names to masqueraded form ### +################################################################### + +S94 +ifdef(`_MASQUERADE_ENVELOPE_', `', `#')dnl +R$+ $@ $>93 $1 +ifdef(`_MASQUERADE_ENVELOPE_', `#', `')dnl +R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2 + +################################################################### +### Ruleset 98 -- local part of ruleset zero (can be null) ### +################################################################### + +S98 +undivert(3)dnl +# +###################################################################### +###################################################################### +##### +`##### MAILER DEFINITIONS' +##### +###################################################################### +###################################################################### +undivert(7)dnl |