proto.m4

< linux网络编程工具>>配套源码

_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', `5s')
_OPTION(Timeout.fileopen, `confTO_FILEOPEN', `60s')
_OPTION(Timeout.control, `confTO_CONTROL', `2m')
_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')
_OPTION(Timeout.hoststatus, `confTO_HOSTSTATUS', `30m')
_OPTION(Timeout.resolver.retrans, `confTO_RESOLVER_RETRANS', `5s')
_OPTION(Timeout.resolver.retrans.first, `confTO_RESOLVER_RETRANS_FIRST', `5s')
_OPTION(Timeout.resolver.retrans.normal, `confTO_RESOLVER_RETRANS_NORMAL', `5s')
_OPTION(Timeout.resolver.retry, `confTO_RESOLVER_RETRY', `4')
_OPTION(Timeout.resolver.retry.first, `confTO_RESOLVER_RETRY_FIRST', `4')
_OPTION(Timeout.resolver.retry.normal, `confTO_RESOLVER_RETRY_NORMAL', `4')

# should we not prune routes in route-addr syntax addresses?
_OPTION(DontPruneRoutes, `confDONT_PRUNE_ROUTES', `False')

# queue up everything before forking?
_OPTION(SuperSafe, `confSAFE_QUEUE', `True')

# status file
O StatusFile=ifdef(`STATUS_FILE', `STATUS_FILE', `MAIL_SETTINGS_DIR`'statistics')

# 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', `mailnull')

# list of locations of user database file (null means no lookup)
_OPTION(UserDatabaseSpec, `confUSERDB_SPEC', `MAIL_SETTINGS_DIR`'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', `False')

# 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')

# maximum number of children we allow at one time
_OPTION(MaxDaemonChildren, `confMAX_DAEMON_CHILDREN', `12')

# maximum number of new connections per second
_OPTION(ConnectionRateThrottle, `confCONNECTION_RATE_THROTTLE', `3')

# work recipient factor
_OPTION(RecipientFactor, `confWORK_RECIPIENT_FACTOR', `30000')

# deliver each queued job in a separate process?
_OPTION(ForkEachJob, `confSEPARATE_PROC', `False')

# 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', `MAIL_SETTINGS_DIR`'service.switch')

# hosts file (normally /etc/hosts)
_OPTION(HostsFile, `confHOSTS_FILE', `/etc/hosts')

# 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', `True')

# 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', `False')

# SMTP initial login message (old $e macro)
_OPTION(SmtpGreetingMessage, `confSMTP_LOGIN_MSG', `$j Sendmail $v ready at $b')

# UNIX initial From header format (old $l macro)
_OPTION(UnixFromLine, `confFROM_LINE', `From $g $d')

# From: lines that have embedded newlines are unwrapped onto one line
_OPTION(SingleLineFromHeader, `confSINGLE_LINE_FROM_HEADER', `False')

# Allow HELO SMTP command that does not `include' a host name
_OPTION(AllowBogusHELO, `confALLOW_BOGUS_HELO', `False')

# Characters to be quoted in a full name phrase (@,;:\()[] are automatic)
_OPTION(MustQuoteChars, `confMUST_QUOTE_CHARS', `.')

# 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', `False')

# are group-writable `:include:' and .forward files (un)trustworthy?
_OPTION(UnsafeGroupWrites, `confUNSAFE_GROUP_WRITES', `True')

# where do errors that occur when sending errors get sent?
_OPTION(DoubleBounceAddress, `confDOUBLE_BOUNCE_ADDRESS', `postmaster')

# where to save bounces if all else fails
_OPTION(DeadLetterDrop, `confDEAD_LETTER_DROP', `/var/tmp/dead.letter')

# what user id do we assume for the majority of the processing?
_OPTION(RunAsUser, `confRUN_AS_USER', `sendmail')

# maximum number of recipients per SMTP envelope
_OPTION(MaxRecipientsPerMessage, `confMAX_RCPTS_PER_MESSAGE', `100')

# shall we get local names from our installed interfaces?
_OPTION(DontProbeInterfaces, `confDONT_PROBE_INTERFACES', `False')

# Return-Receipt-To: header implies DSN request
_OPTION(RrtImpliesDsn, `confRRT_IMPLIES_DSN', `False')

# override connection address (for testing)
_OPTION(ConnectOnlyTo, `confCONNECT_ONLY_TO', `0.0.0.0')

# Trusted user for file ownership and starting the daemon
_OPTION(TrustedUser, `confTRUSTED_USER', `root')

# Control socket for daemon management
_OPTION(ControlSocketName, `confCONTROL_SOCKET_NAME', `/var/spool/mqueue/.control')

# Maximum MIME header length to protect MUAs
_OPTION(MaxMimeHeaderLength, `confMAX_MIME_HEADER_LENGTH', `0/0')

# Maximum length of the sum of all headers
_OPTION(MaxHeadersLength, `confMAX_HEADERS_LENGTH', `32768')

# Maximum depth of alias recursion
_OPTION(MaxAliasRecursion, `confMAX_ALIAS_RECURSION', `10')

# location of pid file
_OPTION(PidFile, `confPID_FILE', `/var/run/sendmail.pid')

# Prefix string for the process title shown on 'ps' listings
_OPTION(ProcessTitlePrefix, `confPROCESS_TITLE_PREFIX', `prefix')

# Data file (df) memory-buffer file maximum size
_OPTION(DataFileBufferSize, `confDF_BUFFER_SIZE', `4096')

# Transcript file (xf) memory-buffer file maximum size
_OPTION(XscriptFileBufferSize, `confXF_BUFFER_SIZE', `4096')

# list of authentication mechanisms
_OPTION(AuthMechanisms, `confAUTH_MECHANISMS', `GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5')

# default authentication information for outgoing connections
_OPTION(DefaultAuthInfo, `confDEF_AUTH_INFO', `MAIL_SETTINGS_DIR`'default-auth-info')

# SMTP AUTH flags
_OPTION(AuthOptions, `confAUTH_OPTIONS', `')

ifdef(`_FFR_MILTER', `
# Input mail filters
_OPTION(InputMailFilters, `confINPUT_MAIL_FILTERS', `')

# Milter options
_OPTION(Milter.macros.connect, `confMILTER_MACROS_CONNECT', `')
_OPTION(Milter.macros.helo, `confMILTER_MACROS_HELO', `')
_OPTION(Milter.macros.envfrom, `confMILTER_MACROS_ENVFROM', `')
_OPTION(Milter.macros.envrcpt, `confMILTER_MACROS_ENVRCPT', `')')

# CA directory
_OPTION(CACERTPath, `confCACERT_PATH', `')
# CA file
_OPTION(CACERTFile, `confCACERT', `')
# Server Cert
_OPTION(ServerCertFile, `confSERVER_CERT', `')
# Server private key
_OPTION(ServerKeyFile, `confSERVER_KEY', `')
# Client Cert
_OPTION(ClientCertFile, `confCLIENT_CERT', `')
# Client private key
_OPTION(ClientKeyFile, `confCLIENT_KEY', `')
# DHParameters (only required if DSA/DH is used)
_OPTION(DHParameters, `confDH_PARAMETERS', `')
# Random data source (required for systems without /dev/urandom under OpenSSL)
_OPTION(RandFile, `confRAND_FILE', `')

ifdef(`confQUEUE_FILE_MODE',
`# queue file mode (qf files)
O QueueFileMode=confQUEUE_FILE_MODE
')

###########################
#   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, `MAIL_SETTINGS_DIR`'trusted-users')
Troot
Tdaemon
ifdef(`_NO_UUCP_', `dnl', `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
# HPosted-Date: $a
# H?l?Received-Date: $b
H?M?Resent-Message-Id: <$t.$i@$j>
H?M?Message-Id: <$t.$i@$j>

#
######################################################################
######################################################################
#####
#####			REWRITING RULES
#####
######################################################################
######################################################################

############################################
###  Ruleset 3 -- Name Canonicalization  ###
############################################
Scanonify=3

# 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@ $* <@>		$: @ $1				unmark @host:...
R$* :: $* <@>		$: $1 :: $2			unmark node::addr
R:`include': $* <@>	$: :`include': $1			unmark :`include':...
R$* [ IPv6 $- ] <@>	$: $1 [ IPv6 $2 ]		unmark IPv6 addr
R$* : $* [ $* ]		$: $1 : $2 [ $3 ] <@>		remark if leading colon
R$* : $* <@>		$: $2				strip colon if marked
R$* <@>			$: $1				unmark
R$* ;			   $1				strip trailing semi
R$* < $* ; >		   $1 < $2 >			bogus bracketed 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 <>

ifdef(`_USE_DEPRECATED_ROUTE_ADDR_',`dnl
# 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@ $+ : $+		$@ $>Canonify2 < @$1 > : $2	handle <route-addr>
dnl',`dnl
# strip route address <@a,@b,@c:user@d> -> <user@d>
R@ $+ , $+		$2
R@ $+ : $+		$2
dnl')

# find focus for list syntax
R $+ : $* ; @ $+	$@ $>Canonify2 $1 : $2 ; < @ $3 >	list syntax
R $+ : $* ;		$@ $1 : $2;			list syntax

# find focus for @ syntax addresses
R$+ @ $+		$: $1 < @ $2 >			focus on domain
R$+ < $+ @ $+ >		$1 $2 < @ $3 >			move gaze right
R$+ < @ $+ >		$@ $>Canonify2 $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$- ! $+		$@ $>Canonify2 $2 < @ $1 .UUCP >	resolve uucp names
R$+ . $- ! $+		$@ $>Canonify2 $3 < @ $1 . $2 >		domain uucps
R$+ ! $+		$@ $>Canonify2 $2 < @ $1 .UUCP >	uucp subdomains
')
ifdef(`_USE_DECNET_SYNTAX_',
`# convert node::user addresses into a domain-based address
R$- :: $+		$@ $>Canonify2 $2 < @ $1 .DECNET >	resolve DECnet names
R$- . $- :: $+		$@ $>Canonify2 $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 @ $3			Undo all but the last.
R$* @ $*		$@ $>Canonify2 $1 < @ $2 >	Insert < > and finish