Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 652 insertions, 0 deletions

diff --git a/src/trivial-rewrite/trivial-rewrite.c b/src/trivial-rewrite/trivial-rewrite.c
new file mode 100644
index 0000000..29c55c9
--- /dev/null
+++ b/src/trivial-rewrite/trivial-rewrite.c
@@ -0,0 +1,652 @@
+/*++
+/* NAME
+/*	trivial-rewrite 8
+/* SUMMARY
+/*	Postfix address rewriting and resolving daemon
+/* SYNOPSIS
+/*	\fBtrivial-rewrite\fR [generic Postfix daemon options]
+/* DESCRIPTION
+/*	The \fBtrivial-rewrite\fR(8) daemon processes three types of client
+/*	service requests:
+/* .IP "\fBrewrite \fIcontext address\fR"
+/*	Rewrite an address to standard form, according to the
+/*	address rewriting context:
+/* .RS
+/* .IP \fBlocal\fR
+/*	Append the domain names specified with \fB$myorigin\fR or
+/*	\fB$mydomain\fR to incomplete addresses; do \fBswap_bangpath\fR
+/*	and \fBallow_percent_hack\fR processing as described below, and
+/*	strip source routed addresses (\fI@site,@site:user@domain\fR)
+/*	to \fIuser@domain\fR form.
+/* .IP \fBremote\fR
+/*	Append the domain name specified with
+/*	\fB$remote_header_rewrite_domain\fR to incomplete
+/*	addresses. Otherwise the result is identical to that of
+/*	the \fBlocal\fR address rewriting context. This prevents
+/*	Postfix from appending the local domain to spam from poorly
+/*	written remote clients.
+/* .RE
+/* .IP "\fBresolve \fIsender\fR \fIaddress\fR"
+/*	Resolve the address to a (\fItransport\fR, \fInexthop\fR,
+/*	\fIrecipient\fR, \fIflags\fR) quadruple. The meaning of
+/*	the results is as follows:
+/* .RS
+/* .IP \fItransport\fR
+/*	The delivery agent to use. This is the first field of an entry
+/*	in the \fBmaster.cf\fR file.
+/* .IP \fInexthop\fR
+/*	The host to send to and optional delivery method information.
+/* .IP \fIrecipient\fR
+/*	The envelope recipient address that is passed on to \fInexthop\fR.
+/* .IP \fIflags\fR
+/*	The address class, whether the address requires relaying,
+/*	whether the address has problems, and whether the request failed.
+/* .RE
+/* .IP "\fBverify \fIsender\fR \fIaddress\fR"
+/*	Resolve the address for address verification purposes.
+/* SERVER PROCESS MANAGEMENT
+/* .ad
+/* .fi
+/*	The \fBtrivial-rewrite\fR(8) servers run under control by
+/*	the Postfix master
+/*	server.  Each server can handle multiple simultaneous connections.
+/*	When all servers are busy while a client connects, the master
+/*	creates a new server process, provided that the trivial-rewrite
+/*	server process limit is not exceeded.
+/*	Each trivial-rewrite server terminates after
+/*	serving at least \fB$max_use\fR clients of after \fB$max_idle\fR
+/*	seconds of idle time.
+/* STANDARDS
+/* .ad
+/* .fi
+/*	None. The command does not interact with the outside world.
+/* SECURITY
+/* .ad
+/* .fi
+/*	The \fBtrivial-rewrite\fR(8) daemon is not security sensitive.
+/*	By default, this daemon does not talk to remote or local users.
+/*	It can run at a fixed low privilege in a chrooted environment.
+/* DIAGNOSTICS
+/*	Problems and transactions are logged to \fBsyslogd\fR(8)
+/*	or \fBpostlogd\fR(8).
+/* CONFIGURATION PARAMETERS
+/* .ad
+/* .fi
+/*	On busy mail systems a long time may pass before a \fBmain.cf\fR
+/*	change affecting \fBtrivial-rewrite\fR(8) is picked up. Use the command
+/*	"\fBpostfix reload\fR" to speed up a change.
+/*
+/*	The text below provides only a parameter summary. See
+/*	\fBpostconf\fR(5) for more details including examples.
+/* COMPATIBILITY CONTROLS
+/* .ad
+/* .fi
+/* .IP "\fBresolve_dequoted_address (yes)\fR"
+/*	Resolve a recipient address safely instead of correctly, by
+/*	looking inside quotes.
+/* .PP
+/*	Available with Postfix version 2.1 and later:
+/* .IP "\fBresolve_null_domain (no)\fR"
+/*	Resolve an address that ends in the "@" null domain as if the
+/*	local hostname were specified, instead of rejecting the address as
+/*	invalid.
+/* .PP
+/*	Available with Postfix version 2.3 and later:
+/* .IP "\fBresolve_numeric_domain (no)\fR"
+/*	Resolve "user@ipaddress" as "user@[ipaddress]", instead of
+/*	rejecting the address as invalid.
+/* .PP
+/*	Available with Postfix version 2.5 and later:
+/* .IP "\fBallow_min_user (no)\fR"
+/*	Allow a sender or recipient address to have `-' as the first
+/*	character.
+/* ADDRESS REWRITING CONTROLS
+/* .ad
+/* .fi
+/* .IP "\fBmyorigin ($myhostname)\fR"
+/*	The domain name that locally-posted mail appears to come
+/*	from, and that locally posted mail is delivered to.
+/* .IP "\fBallow_percent_hack (yes)\fR"
+/*	Enable the rewriting of the form "user%domain" to "user@domain".
+/* .IP "\fBappend_at_myorigin (yes)\fR"
+/*	With locally submitted mail, append the string "@$myorigin" to mail
+/*	addresses without domain information.
+/* .IP "\fBappend_dot_mydomain (Postfix >= 3.0: no, Postfix < 3.0: yes)\fR"
+/*	With locally submitted mail, append the string ".$mydomain" to
+/*	addresses that have no ".domain" information.
+/* .IP "\fBrecipient_delimiter (empty)\fR"
+/*	The set of characters that can separate a user name from its
+/*	extension (example: user+foo), or a .forward file name from its
+/*	extension (example: .forward+foo).
+/* .IP "\fBswap_bangpath (yes)\fR"
+/*	Enable the rewriting of "site!user" into "user@site".
+/* .PP
+/*	Available in Postfix 2.2 and later:
+/* .IP "\fBremote_header_rewrite_domain (empty)\fR"
+/*	Don't rewrite message headers from remote clients at all when
+/*	this parameter is empty; otherwise, rewrite message headers and
+/*	append the specified domain name to incomplete addresses.
+/* ROUTING CONTROLS
+/* .ad
+/* .fi
+/*	The following is applicable to Postfix version 2.0 and later.
+/*	Earlier versions do not have support for: virtual_transport,
+/*	relay_transport, virtual_alias_domains, virtual_mailbox_domains
+/*	or proxy_interfaces.
+/* .IP "\fBlocal_transport (local:$myhostname)\fR"
+/*	The default mail delivery transport and next-hop destination
+/*	for final delivery to domains listed with mydestination, and for
+/*	[ipaddress] destinations that match $inet_interfaces or $proxy_interfaces.
+/* .IP "\fBvirtual_transport (virtual)\fR"
+/*	The default mail delivery transport and next-hop destination for
+/*	final delivery to domains listed with $virtual_mailbox_domains.
+/* .IP "\fBrelay_transport (relay)\fR"
+/*	The default mail delivery transport and next-hop destination for
+/*	remote delivery to domains listed with $relay_domains.
+/* .IP "\fBdefault_transport (smtp)\fR"
+/*	The default mail delivery transport and next-hop destination for
+/*	destinations that do not match $mydestination, $inet_interfaces,
+/*	$proxy_interfaces, $virtual_alias_domains, $virtual_mailbox_domains,
+/*	or $relay_domains.
+/* .IP "\fBparent_domain_matches_subdomains (see 'postconf -d' output)\fR"
+/*	A list of Postfix features where the pattern "example.com" also
+/*	matches subdomains of example.com,
+/*	instead of requiring an explicit ".example.com" pattern.
+/* .IP "\fBrelayhost (empty)\fR"
+/*	The next-hop destination of non-local mail; overrides non-local
+/*	domains in recipient addresses.
+/* .IP "\fBtransport_maps (empty)\fR"
+/*	Optional lookup tables with mappings from recipient address to
+/*	(message delivery transport, next-hop destination).
+/* .PP
+/*	Available in Postfix version 2.3 and later:
+/* .IP "\fBsender_dependent_relayhost_maps (empty)\fR"
+/*	A sender-dependent override for the global relayhost parameter
+/*	setting.
+/* .PP
+/*	Available in Postfix version 2.5 and later:
+/* .IP "\fBempty_address_relayhost_maps_lookup_key (<>)\fR"
+/*	The sender_dependent_relayhost_maps search string that will be
+/*	used instead of the null sender address.
+/* .PP
+/*	Available in Postfix version 2.7 and later:
+/* .IP "\fBempty_address_default_transport_maps_lookup_key (<>)\fR"
+/*	The sender_dependent_default_transport_maps search string that
+/*	will be used instead of the null sender address.
+/* .IP "\fBsender_dependent_default_transport_maps (empty)\fR"
+/*	A sender-dependent override for the global default_transport
+/*	parameter setting.
+/* ADDRESS VERIFICATION CONTROLS
+/* .ad
+/* .fi
+/*	Postfix version 2.1 introduces sender and recipient address verification.
+/*	This feature is implemented by sending probe email messages that
+/*	are not actually delivered.
+/*	By default, address verification probes use the same route
+/*	as regular mail. To override specific aspects of message
+/*	routing for address verification probes, specify one or more
+/*	of the following:
+/* .IP "\fBaddress_verify_local_transport ($local_transport)\fR"
+/*	Overrides the local_transport parameter setting for address
+/*	verification probes.
+/* .IP "\fBaddress_verify_virtual_transport ($virtual_transport)\fR"
+/*	Overrides the virtual_transport parameter setting for address
+/*	verification probes.
+/* .IP "\fBaddress_verify_relay_transport ($relay_transport)\fR"
+/*	Overrides the relay_transport parameter setting for address
+/*	verification probes.
+/* .IP "\fBaddress_verify_default_transport ($default_transport)\fR"
+/*	Overrides the default_transport parameter setting for address
+/*	verification probes.
+/* .IP "\fBaddress_verify_relayhost ($relayhost)\fR"
+/*	Overrides the relayhost parameter setting for address verification
+/*	probes.
+/* .IP "\fBaddress_verify_transport_maps ($transport_maps)\fR"
+/*	Overrides the transport_maps parameter setting for address verification
+/*	probes.
+/* .PP
+/*	Available in Postfix version 2.3 and later:
+/* .IP "\fBaddress_verify_sender_dependent_relayhost_maps ($sender_dependent_relayhost_maps)\fR"
+/*	Overrides the sender_dependent_relayhost_maps parameter setting for address
+/*	verification probes.
+/* .PP
+/*	Available in Postfix version 2.7 and later:
+/* .IP "\fBaddress_verify_sender_dependent_default_transport_maps ($sender_dependent_default_transport_maps)\fR"
+/*	Overrides the sender_dependent_default_transport_maps parameter
+/*	setting for address verification probes.
+/* MISCELLANEOUS CONTROLS
+/* .ad
+/* .fi
+/* .IP "\fBconfig_directory (see 'postconf -d' output)\fR"
+/*	The default location of the Postfix main.cf and master.cf
+/*	configuration files.
+/* .IP "\fBdaemon_timeout (18000s)\fR"
+/*	How much time a Postfix daemon process may take to handle a
+/*	request before it is terminated by a built-in watchdog timer.
+/* .IP "\fBempty_address_recipient (MAILER-DAEMON)\fR"
+/*	The recipient of mail addressed to the null address.
+/* .IP "\fBipc_timeout (3600s)\fR"
+/*	The time limit for sending or receiving information over an internal
+/*	communication channel.
+/* .IP "\fBmax_idle (100s)\fR"
+/*	The maximum amount of time that an idle Postfix daemon process waits
+/*	for an incoming connection before terminating voluntarily.
+/* .IP "\fBmax_use (100)\fR"
+/*	The maximal number of incoming connections that a Postfix daemon
+/*	process will service before terminating voluntarily.
+/* .IP "\fBrelocated_maps (empty)\fR"
+/*	Optional lookup tables with new contact information for users or
+/*	domains that no longer exist.
+/* .IP "\fBprocess_id (read-only)\fR"
+/*	The process ID of a Postfix command or daemon process.
+/* .IP "\fBprocess_name (read-only)\fR"
+/*	The process name of a Postfix command or daemon process.
+/* .IP "\fBqueue_directory (see 'postconf -d' output)\fR"
+/*	The location of the Postfix top-level queue directory.
+/* .IP "\fBshow_user_unknown_table_name (yes)\fR"
+/*	Display the name of the recipient table in the "User unknown"
+/*	responses.
+/* .IP "\fBsyslog_facility (mail)\fR"
+/*	The syslog facility of Postfix logging.
+/* .IP "\fBsyslog_name (see 'postconf -d' output)\fR"
+/*	A prefix that is prepended to the process name in syslog
+/*	records, so that, for example, "smtpd" becomes "prefix/smtpd".
+/* .PP
+/*	Available in Postfix version 2.0 and later:
+/* .IP "\fBhelpful_warnings (yes)\fR"
+/*	Log warnings about problematic configuration settings, and provide
+/*	helpful suggestions.
+/* .PP
+/*	Available in Postfix 3.3 and later:
+/* .IP "\fBservice_name (read-only)\fR"
+/*	The master.cf service name of a Postfix daemon process.
+/* SEE ALSO
+/*	postconf(5), configuration parameters
+/*	transport(5), transport table format
+/*	relocated(5), format of the "user has moved" table
+/*	master(8), process manager
+/*	postlogd(8), Postfix logging
+/*	syslogd(8), system logging
+/* README FILES
+/* .ad
+/* .fi
+/*	Use "\fBpostconf readme_directory\fR" or
+/*	"\fBpostconf html_directory\fR" to locate this information.
+/* .na
+/* .nf
+/*	ADDRESS_CLASS_README, Postfix address classes howto
+/*	ADDRESS_VERIFICATION_README, Postfix address verification
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*
+/*	Wietse Venema
+/*	Google, Inc.
+/*	111 8th Avenue
+/*	New York, NY 10011, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <vstring.h>
+#include <vstream.h>
+#include <vstring_vstream.h>
+#include <split_at.h>
+#include <stringops.h>
+#include <dict.h>
+#include <events.h>
+
+/* Global library. */
+
+#include <mail_params.h>
+#include <mail_version.h>
+#include <mail_proto.h>
+#include <resolve_local.h>
+#include <mail_conf.h>
+#include <resolve_clnt.h>
+#include <rewrite_clnt.h>
+#include <tok822.h>
+#include <mail_addr.h>
+
+/* Multi server skeleton. */
+
+#include <mail_server.h>
+
+/* Application-specific. */
+
+#include <trivial-rewrite.h>
+#include <transport.h>
+
+static VSTRING *command;
+
+ /*
+  * Tunable parameters.
+  */
+char   *var_transport_maps;
+bool    var_swap_bangpath;
+bool    var_append_dot_mydomain;
+bool    var_append_at_myorigin;
+bool    var_percent_hack;
+char   *var_local_transport;
+char   *var_virt_transport;
+char   *var_relay_transport;
+int     var_resolve_dequoted;
+char   *var_virt_alias_maps;		/* XXX virtual_alias_domains */
+char   *var_virt_mailbox_maps;		/* XXX virtual_mailbox_domains */
+char   *var_virt_alias_doms;
+char   *var_virt_mailbox_doms;
+char   *var_relocated_maps;
+char   *var_def_transport;
+char   *var_snd_def_xport_maps;
+char   *var_empty_addr;
+int     var_show_unk_rcpt_table;
+int     var_resolve_nulldom;
+char   *var_remote_rwr_domain;
+char   *var_snd_relay_maps;
+char   *var_null_relay_maps_key;
+char   *var_null_def_xport_maps_key;
+int     var_resolve_num_dom;
+bool    var_allow_min_user;
+
+ /*
+  * Shadow personality for address verification.
+  */
+char   *var_vrfy_xport_maps;
+char   *var_vrfy_local_xport;
+char   *var_vrfy_virt_xport;
+char   *var_vrfy_relay_xport;
+char   *var_vrfy_def_xport;
+char   *var_vrfy_snd_def_xport_maps;
+char   *var_vrfy_relayhost;
+char   *var_vrfy_relay_maps;
+
+ /*
+  * Different resolver personalities depending on the kind of request.
+  */
+RES_CONTEXT resolve_regular = {
+    VAR_LOCAL_TRANSPORT, &var_local_transport,
+    VAR_VIRT_TRANSPORT, &var_virt_transport,
+    VAR_RELAY_TRANSPORT, &var_relay_transport,
+    VAR_DEF_TRANSPORT, &var_def_transport,
+    VAR_SND_DEF_XPORT_MAPS, &var_snd_def_xport_maps, 0,
+    VAR_RELAYHOST, &var_relayhost,
+    VAR_SND_RELAY_MAPS, &var_snd_relay_maps, 0,
+    VAR_TRANSPORT_MAPS, &var_transport_maps, 0
+};
+
+RES_CONTEXT resolve_verify = {
+    VAR_VRFY_LOCAL_XPORT, &var_vrfy_local_xport,
+    VAR_VRFY_VIRT_XPORT, &var_vrfy_virt_xport,
+    VAR_VRFY_RELAY_XPORT, &var_vrfy_relay_xport,
+    VAR_VRFY_DEF_XPORT, &var_vrfy_def_xport,
+    VAR_VRFY_SND_DEF_XPORT_MAPS, &var_vrfy_snd_def_xport_maps, 0,
+    VAR_VRFY_RELAYHOST, &var_vrfy_relayhost,
+    VAR_VRFY_RELAY_MAPS, &var_vrfy_relay_maps, 0,
+    VAR_VRFY_XPORT_MAPS, &var_vrfy_xport_maps, 0
+};
+
+ /*
+  * Connection management. When file-based lookup tables change we should
+  * restart at our convenience, but avoid client read errors. We restart
+  * rather than reopen, because the process may be chrooted (and if it isn't
+  * we still need code that handles the chrooted case anyway).
+  * 
+  * Three variants are implemented. Only one should be used.
+  * 
+  * ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT
+  * 
+  * This code detaches the trivial-rewrite process from the master, stops
+  * accepting new clients, and handles established clients in the background,
+  * asking them to reconnect the next time they send a request. The master
+  * creates a new process that accepts connections. This is reasonably safe
+  * because the number of trivial-rewrite server processes is small compared
+  * to the number of trivial-rewrite client processes. The few extra
+  * background processes should not make a difference in Postfix's footprint.
+  * However, once a daemon detaches from the master, its exit status will be
+  * lost, and abnormal termination may remain undetected. Timely restart is
+  * achieved by checking the table changed status every 10 seconds or so
+  * before responding to a client request.
+  * 
+  * ifdef CHECK_TABLE_STATS_PERIODICALLY
+  * 
+  * This code runs every 10 seconds and terminates the process when lookup
+  * tables have changed. This is subject to race conditions when established
+  * clients send a request while the server exits; those clients may read EOF
+  * instead of a server reply. If the experience with the oldest option
+  * (below) is anything to go by, however, then this is unlikely to be a
+  * problem during real deployment.
+  * 
+  * ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT
+  * 
+  * This is the old code. It checks the table changed status when a new client
+  * connects (i.e. before the server calls accept()), and terminates
+  * immediately. This is invisible for the connecting client, but is subject
+  * to race conditions when established clients send a request while the
+  * server exits; those clients may read EOF instead of a server reply. This
+  * has, however, not been a problem in real deployment. With the old code,
+  * timely restart is achieved by setting the ipc_ttl parameter to 60
+  * seconds, so that the table change status is checked several times a
+  * minute.
+  */
+int     server_flags;
+
+ /*
+  * Define exactly one of these.
+  */
+/* #define DETACH_AND_ASK_CLIENTS_TO_RECONNECT	/* correct and complex */
+#define CHECK_TABLE_STATS_PERIODICALLY	/* quick */
+/* #define CHECK_TABLE_STATS_BEFORE_ACCEPT	/* slow */
+
+/* rewrite_service - read request and send reply */
+
+static void rewrite_service(VSTREAM *stream, char *unused_service, char **argv)
+{
+    int     status = -1;
+
+#ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT
+    static time_t last;
+    time_t  now;
+    const char *table;
+
+#endif
+
+    /*
+     * Sanity check. This service takes no command-line arguments.
+     */
+    if (argv[0])
+	msg_fatal("unexpected command-line argument: %s", argv[0]);
+
+    /*
+     * Client connections are long-lived. Be sure to refesh timely.
+     */
+#ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT
+    if (server_flags == 0 && (now = event_time()) - last > 10) {
+	if ((table = dict_changed_name()) != 0) {
+	    msg_info("table %s has changed -- restarting", table);
+	    if (multi_server_drain() == 0)
+		server_flags = 1;
+	}
+	last = now;
+    }
+#endif
+
+    /*
+     * This routine runs whenever a client connects to the UNIX-domain socket
+     * dedicated to address rewriting. All connection-management stuff is
+     * handled by the common code in multi_server.c.
+     */
+    if (attr_scan(stream, ATTR_FLAG_STRICT | ATTR_FLAG_MORE,
+		  RECV_ATTR_STR(MAIL_ATTR_REQ, command),
+		  ATTR_TYPE_END) == 1) {
+	if (strcmp(vstring_str(command), REWRITE_ADDR) == 0) {
+	    status = rewrite_proto(stream);
+	} else if (strcmp(vstring_str(command), RESOLVE_REGULAR) == 0) {
+	    status = resolve_proto(&resolve_regular, stream);
+	} else if (strcmp(vstring_str(command), RESOLVE_VERIFY) == 0) {
+	    status = resolve_proto(&resolve_verify, stream);
+	} else {
+	    msg_warn("bad command %.30s", printable(vstring_str(command), '?'));
+	}
+    }
+    if (status < 0)
+	multi_server_disconnect(stream);
+}
+
+/* pre_accept - see if tables have changed */
+
+#ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT
+
+static void pre_accept(char *unused_name, char **unused_argv)
+{
+    const char *table;
+
+    if ((table = dict_changed_name()) != 0) {
+	msg_info("table %s has changed -- restarting", table);
+	exit(0);
+    }
+}
+
+#endif
+
+static void check_table_stats(int unused_event, void *unused_context)
+{
+    const char *table;
+
+    if ((table = dict_changed_name()) != 0) {
+	msg_info("table %s has changed -- restarting", table);
+	exit(0);
+    }
+    event_request_timer(check_table_stats, (void *) 0, 10);
+}
+
+/* pre_jail_init - initialize before entering chroot jail */
+
+static void pre_jail_init(char *unused_name, char **unused_argv)
+{
+    command = vstring_alloc(100);
+    rewrite_init();
+    resolve_init();
+    if (*RES_PARAM_VALUE(resolve_regular.transport_maps))
+	resolve_regular.transport_info =
+	    transport_pre_init(resolve_regular.transport_maps_name,
+			   RES_PARAM_VALUE(resolve_regular.transport_maps));
+    if (*RES_PARAM_VALUE(resolve_verify.transport_maps))
+	resolve_verify.transport_info =
+	    transport_pre_init(resolve_verify.transport_maps_name,
+			    RES_PARAM_VALUE(resolve_verify.transport_maps));
+    if (*RES_PARAM_VALUE(resolve_regular.snd_relay_maps))
+	resolve_regular.snd_relay_info =
+	    maps_create(resolve_regular.snd_relay_maps_name,
+			RES_PARAM_VALUE(resolve_regular.snd_relay_maps),
+			DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX
+			| DICT_FLAG_NO_REGSUB | DICT_FLAG_UTF8_REQUEST);
+    if (*RES_PARAM_VALUE(resolve_verify.snd_relay_maps))
+	resolve_verify.snd_relay_info =
+	    maps_create(resolve_verify.snd_relay_maps_name,
+			RES_PARAM_VALUE(resolve_verify.snd_relay_maps),
+			DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX
+			| DICT_FLAG_NO_REGSUB | DICT_FLAG_UTF8_REQUEST);
+    if (*RES_PARAM_VALUE(resolve_regular.snd_def_xp_maps))
+	resolve_regular.snd_def_xp_info =
+	    maps_create(resolve_regular.snd_def_xp_maps_name,
+			RES_PARAM_VALUE(resolve_regular.snd_def_xp_maps),
+			DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX
+			| DICT_FLAG_NO_REGSUB | DICT_FLAG_UTF8_REQUEST);
+    if (*RES_PARAM_VALUE(resolve_verify.snd_def_xp_maps))
+	resolve_verify.snd_def_xp_info =
+	    maps_create(resolve_verify.snd_def_xp_maps_name,
+			RES_PARAM_VALUE(resolve_verify.snd_def_xp_maps),
+			DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX
+			| DICT_FLAG_NO_REGSUB | DICT_FLAG_UTF8_REQUEST);
+}
+
+/* post_jail_init - initialize after entering chroot jail */
+
+static void post_jail_init(char *unused_name, char **unused_argv)
+{
+    if (resolve_regular.transport_info)
+	transport_post_init(resolve_regular.transport_info);
+    if (resolve_verify.transport_info)
+	transport_post_init(resolve_verify.transport_info);
+    check_table_stats(0, (void *) 0);
+}
+
+MAIL_VERSION_STAMP_DECLARE;
+
+/* main - pass control to the multi-threaded skeleton code */
+
+int     main(int argc, char **argv)
+{
+    static const CONFIG_STR_TABLE str_table[] = {
+	VAR_TRANSPORT_MAPS, DEF_TRANSPORT_MAPS, &var_transport_maps, 0, 0,
+	VAR_LOCAL_TRANSPORT, DEF_LOCAL_TRANSPORT, &var_local_transport, 1, 0,
+	VAR_VIRT_TRANSPORT, DEF_VIRT_TRANSPORT, &var_virt_transport, 1, 0,
+	VAR_RELAY_TRANSPORT, DEF_RELAY_TRANSPORT, &var_relay_transport, 1, 0,
+	VAR_DEF_TRANSPORT, DEF_DEF_TRANSPORT, &var_def_transport, 1, 0,
+	VAR_VIRT_ALIAS_MAPS, DEF_VIRT_ALIAS_MAPS, &var_virt_alias_maps, 0, 0,
+	VAR_VIRT_ALIAS_DOMS, DEF_VIRT_ALIAS_DOMS, &var_virt_alias_doms, 0, 0,
+	VAR_VIRT_MAILBOX_MAPS, DEF_VIRT_MAILBOX_MAPS, &var_virt_mailbox_maps, 0, 0,
+	VAR_VIRT_MAILBOX_DOMS, DEF_VIRT_MAILBOX_DOMS, &var_virt_mailbox_doms, 0, 0,
+	VAR_RELOCATED_MAPS, DEF_RELOCATED_MAPS, &var_relocated_maps, 0, 0,
+	VAR_EMPTY_ADDR, DEF_EMPTY_ADDR, &var_empty_addr, 1, 0,
+	VAR_VRFY_XPORT_MAPS, DEF_VRFY_XPORT_MAPS, &var_vrfy_xport_maps, 0, 0,
+	VAR_VRFY_LOCAL_XPORT, DEF_VRFY_LOCAL_XPORT, &var_vrfy_local_xport, 1, 0,
+	VAR_VRFY_VIRT_XPORT, DEF_VRFY_VIRT_XPORT, &var_vrfy_virt_xport, 1, 0,
+	VAR_VRFY_RELAY_XPORT, DEF_VRFY_RELAY_XPORT, &var_vrfy_relay_xport, 1, 0,
+	VAR_VRFY_DEF_XPORT, DEF_VRFY_DEF_XPORT, &var_vrfy_def_xport, 1, 0,
+	VAR_VRFY_RELAYHOST, DEF_VRFY_RELAYHOST, &var_vrfy_relayhost, 0, 0,
+	VAR_REM_RWR_DOMAIN, DEF_REM_RWR_DOMAIN, &var_remote_rwr_domain, 0, 0,
+	VAR_SND_RELAY_MAPS, DEF_SND_RELAY_MAPS, &var_snd_relay_maps, 0, 0,
+	VAR_NULL_RELAY_MAPS_KEY, DEF_NULL_RELAY_MAPS_KEY, &var_null_relay_maps_key, 1, 0,
+	VAR_VRFY_RELAY_MAPS, DEF_VRFY_RELAY_MAPS, &var_vrfy_relay_maps, 0, 0,
+	VAR_SND_DEF_XPORT_MAPS, DEF_SND_DEF_XPORT_MAPS, &var_snd_def_xport_maps, 0, 0,
+	VAR_NULL_DEF_XPORT_MAPS_KEY, DEF_NULL_DEF_XPORT_MAPS_KEY, &var_null_def_xport_maps_key, 1, 0,
+	VAR_VRFY_SND_DEF_XPORT_MAPS, DEF_VRFY_SND_DEF_XPORT_MAPS, &var_vrfy_snd_def_xport_maps, 0, 0,
+	0,
+    };
+    static const CONFIG_BOOL_TABLE bool_table[] = {
+	VAR_SWAP_BANGPATH, DEF_SWAP_BANGPATH, &var_swap_bangpath,
+	VAR_APP_AT_MYORIGIN, DEF_APP_AT_MYORIGIN, &var_append_at_myorigin,
+	VAR_PERCENT_HACK, DEF_PERCENT_HACK, &var_percent_hack,
+	VAR_RESOLVE_DEQUOTED, DEF_RESOLVE_DEQUOTED, &var_resolve_dequoted,
+	VAR_SHOW_UNK_RCPT_TABLE, DEF_SHOW_UNK_RCPT_TABLE, &var_show_unk_rcpt_table,
+	VAR_RESOLVE_NULLDOM, DEF_RESOLVE_NULLDOM, &var_resolve_nulldom,
+	VAR_RESOLVE_NUM_DOM, DEF_RESOLVE_NUM_DOM, &var_resolve_num_dom,
+	VAR_ALLOW_MIN_USER, DEF_ALLOW_MIN_USER, &var_allow_min_user,
+	0,
+    };
+    static const CONFIG_NBOOL_TABLE nbool_table[] = {
+	VAR_APP_DOT_MYDOMAIN, DEF_APP_DOT_MYDOMAIN, &var_append_dot_mydomain,
+	0,
+    };
+
+    /*
+     * Fingerprint executables and core dumps.
+     */
+    MAIL_VERSION_STAMP_ALLOCATE;
+
+    multi_server_main(argc, argv, rewrite_service,
+		      CA_MAIL_SERVER_STR_TABLE(str_table),
+		      CA_MAIL_SERVER_BOOL_TABLE(bool_table),
+		      CA_MAIL_SERVER_NBOOL_TABLE(nbool_table),
+		      CA_MAIL_SERVER_PRE_INIT(pre_jail_init),
+		      CA_MAIL_SERVER_POST_INIT(post_jail_init),
+#ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT
+		      CA_MAIL_SERVER_PRE_ACCEPT(pre_accept),
+#endif
+		      0);
+}