Adding upstream version 4.92.upstream/4.92upstream

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

1 files changed, 1661 insertions, 0 deletions

diff --git a/src/globals.c b/src/globals.c
new file mode 100644
index 0000000..b3362a3
--- /dev/null
+++ b/src/globals.c
@@ -0,0 +1,1661 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* See the file NOTICE for conditions of use and distribution. */
+
+/* All the global variables are defined together in this one module, so
+that they are easy to find. */
+
+#include "exim.h"
+
+
+/* Generic options for auths, all of which live inside auth_instance
+data blocks and hence have the opt_public flag set. */
+
+optionlist optionlist_auths[] = {
+  { "client_condition", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, client_condition)) },
+  { "client_set_id", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, set_client_id)) },
+  { "driver",        opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, driver_name)) },
+  { "public_name",   opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, public_name)) },
+  { "server_advertise_condition", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, advertise_condition))},
+  { "server_condition", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, server_condition)) },
+  { "server_debug_print", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, server_debug_string)) },
+  { "server_mail_auth_condition", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, mail_auth_condition)) },
+  { "server_set_id", opt_stringptr | opt_public,
+                 (void *)(offsetof(auth_instance, set_id)) }
+};
+
+int     optionlist_auths_size = nelem(optionlist_auths);
+
+/* An empty host aliases list. */
+
+uschar *no_aliases             = NULL;
+
+
+/* For comments on these variables, see globals.h. I'm too idle to
+duplicate them here... */
+
+#ifdef EXIM_PERL
+uschar *opt_perl_startup       = NULL;
+BOOL    opt_perl_at_start      = FALSE;
+BOOL    opt_perl_started       = FALSE;
+BOOL    opt_perl_taintmode     = FALSE;
+#endif
+
+#ifdef EXPAND_DLFUNC
+tree_node *dlobj_anchor        = NULL;
+#endif
+
+#ifdef LOOKUP_IBASE
+uschar *ibase_servers          = NULL;
+#endif
+
+#ifdef LOOKUP_LDAP
+uschar *eldap_ca_cert_dir      = NULL;
+uschar *eldap_ca_cert_file     = NULL;
+uschar *eldap_cert_file        = NULL;
+uschar *eldap_cert_key         = NULL;
+uschar *eldap_cipher_suite     = NULL;
+uschar *eldap_default_servers  = NULL;
+uschar *eldap_require_cert     = NULL;
+int     eldap_version          = -1;
+BOOL    eldap_start_tls        = FALSE;
+#endif
+
+#ifdef LOOKUP_MYSQL
+uschar *mysql_servers          = NULL;
+#endif
+
+#ifdef LOOKUP_ORACLE
+uschar *oracle_servers         = NULL;
+#endif
+
+#ifdef LOOKUP_PGSQL
+uschar *pgsql_servers          = NULL;
+#endif
+
+#ifdef LOOKUP_REDIS
+uschar *redis_servers          = NULL;
+#endif
+
+#ifdef LOOKUP_SQLITE
+int     sqlite_lock_timeout    = 5;
+#endif
+
+#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
+BOOL    move_frozen_messages   = FALSE;
+#endif
+
+/* These variables are outside the #ifdef because it keeps the code less
+cluttered in several places (e.g. during logging) if we can always refer to
+them. Also, the tls_ variables are now always visible.  Note that these are
+only used for smtp connections, not for service-daemon access. */
+
+tls_support tls_in = {
+ .active =		{.sock = -1},
+ .bits =		0,
+ .certificate_verified = FALSE,
+#ifdef SUPPORT_DANE
+ .dane_verified =	FALSE,
+ .tlsa_usage =		0,
+#endif
+ .cipher =		NULL,
+ .on_connect =		FALSE,
+ .on_connect_ports =	NULL,
+ .ourcert =		NULL,
+ .peercert =		NULL,
+ .peerdn =		NULL,
+ .sni =			NULL,
+ .ocsp =		OCSP_NOT_REQ
+};
+tls_support tls_out = {
+ .active =		{.sock = -1},
+ .bits =		0,
+ .certificate_verified = FALSE,
+#ifdef SUPPORT_DANE
+ .dane_verified =	FALSE,
+ .tlsa_usage =		0,
+#endif
+ .cipher =		NULL,
+ .on_connect =		FALSE,
+ .on_connect_ports =	NULL,
+ .ourcert =		NULL,
+ .peercert =		NULL,
+ .peerdn =		NULL,
+ .sni =			NULL,
+ .ocsp =		OCSP_NOT_REQ
+};
+
+uschar *dsn_envid              = NULL;
+int     dsn_ret                = 0;
+const pcre  *regex_DSN         = NULL;
+uschar *dsn_advertise_hosts    = NULL;
+
+#ifdef SUPPORT_TLS
+BOOL    gnutls_compat_mode     = FALSE;
+BOOL    gnutls_allow_auto_pkcs11 = FALSE;
+uschar *openssl_options        = NULL;
+const pcre *regex_STARTTLS     = NULL;
+uschar *tls_advertise_hosts    = US"*";
+uschar *tls_certificate        = NULL;
+uschar *tls_crl                = NULL;
+/* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
+that's the interop problem which has been observed: GnuTLS suggesting a higher
+bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
+int     tls_dh_max_bits        = 2236;
+uschar *tls_dhparam            = NULL;
+uschar *tls_eccurve            = US"auto";
+# ifndef DISABLE_OCSP
+uschar *tls_ocsp_file          = NULL;
+# endif
+uschar *tls_privatekey         = NULL;
+BOOL    tls_remember_esmtp     = FALSE;
+uschar *tls_require_ciphers    = NULL;
+# ifdef EXPERIMENTAL_REQUIRETLS
+uschar  tls_requiretls         = 0;	/* REQUIRETLS_MSG etc. bit #defines */
+uschar *tls_advertise_requiretls = US"*";
+const pcre *regex_REQUIRETLS   = NULL;
+# endif
+uschar *tls_try_verify_hosts   = NULL;
+uschar *tls_verify_certificates= US"system";
+uschar *tls_verify_hosts       = NULL;
+#else	/*!SUPPORT_TLS*/
+uschar *tls_advertise_hosts    = NULL;
+#endif
+
+#ifndef DISABLE_PRDR
+/* Per Recipient Data Response variables */
+BOOL    prdr_enable            = FALSE;
+BOOL    prdr_requested         = FALSE;
+const pcre *regex_PRDR         = NULL;
+#endif
+
+#ifdef SUPPORT_I18N
+const pcre *regex_UTF8         = NULL;
+#endif
+
+/* Input-reading functions for messages, so we can use special ones for
+incoming TCP/IP. The defaults use stdin. We never need these for any
+stand-alone tests. */
+
+#if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
+int (*lwr_receive_getc)(unsigned) = stdin_getc;
+uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
+int (*lwr_receive_ungetc)(int) = stdin_ungetc;
+int (*receive_getc)(unsigned)  = stdin_getc;
+uschar * (*receive_getbuf)(unsigned *)  = NULL;
+void (*receive_get_cache)(void)= NULL;
+int (*receive_ungetc)(int)     = stdin_ungetc;
+int (*receive_feof)(void)      = stdin_feof;
+int (*receive_ferror)(void)    = stdin_ferror;
+BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
+#endif
+
+
+/* List of per-address expansion variables for clearing and saving/restoring
+when verifying one address while routing/verifying another. We have to have
+the size explicit, because it is referenced from more than one module. */
+
+const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
+  CUSS &deliver_address_data,
+  CUSS &deliver_domain,
+  CUSS &deliver_domain_data,
+  CUSS &deliver_domain_orig,
+  CUSS &deliver_domain_parent,
+  CUSS &deliver_localpart,
+  CUSS &deliver_localpart_data,
+  CUSS &deliver_localpart_orig,
+  CUSS &deliver_localpart_parent,
+  CUSS &deliver_localpart_prefix,
+  CUSS &deliver_localpart_suffix,
+  CUSS (uschar **)(&deliver_recipients),
+  CUSS &deliver_host,
+  CUSS &deliver_home,
+  CUSS &address_file,
+  CUSS &address_pipe,
+  CUSS &self_hostname,
+  NULL };
+
+int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
+
+/******************************************************************************/
+/* General global variables.  Boolean flags are done as a group
+so that only one bit each is needed, packed, for all those we never
+need to take a pointer - and only a char for the rest.
+This means a struct, unfortunately since it clutters the sourcecode. */
+
+struct global_flags f =
+{
+	.acl_temp_details       = FALSE,
+	.active_local_from_check = FALSE,
+	.active_local_sender_retain = FALSE,
+	.address_test_mode      = FALSE,
+	.admin_user             = FALSE,
+	.allow_auth_unadvertised= FALSE,
+	.allow_unqualified_recipient = TRUE,    /* For local messages */
+	.allow_unqualified_sender = TRUE,       /* Reset for SMTP */
+	.authentication_local   = FALSE,
+
+	.background_daemon      = TRUE,
+
+	.chunking_offered       = FALSE,
+	.config_changed         = FALSE,
+	.continue_more          = FALSE,
+
+	.daemon_listen          = FALSE,
+	.debug_daemon           = FALSE,
+	.deliver_firsttime      = FALSE,
+	.deliver_force          = FALSE,
+	.deliver_freeze         = FALSE,
+	.deliver_force_thaw     = FALSE,
+	.deliver_manual_thaw    = FALSE,
+	.deliver_selectstring_regex = FALSE,
+	.deliver_selectstring_sender_regex = FALSE,
+	.disable_callout_flush  = FALSE,
+	.disable_delay_flush    = FALSE,
+	.disable_logging        = FALSE,
+#ifndef DISABLE_DKIM
+	.dkim_disable_verify      = FALSE,
+#endif
+#ifdef EXPERIMENTAL_DMARC
+	.dmarc_has_been_checked  = FALSE,
+	.dmarc_disable_verify    = FALSE,
+	.dmarc_enable_forensic   = FALSE,
+#endif
+	.dont_deliver           = FALSE,
+	.dot_ends               = TRUE,
+
+	.enable_dollar_recipients = FALSE,
+	.expand_string_forcedfail = FALSE,
+
+	.filter_running         = FALSE,
+
+	.header_rewritten       = FALSE,
+	.helo_verified          = FALSE,
+	.helo_verify_failed     = FALSE,
+	.host_checking_callout  = FALSE,
+	.host_find_failed_syntax= FALSE,
+
+	.inetd_wait_mode        = FALSE,
+	.is_inetd               = FALSE,
+
+	.local_error_message    = FALSE,
+	.log_testing_mode       = FALSE,
+
+#ifdef WITH_CONTENT_SCAN
+	.no_mbox_unspool        = FALSE,
+#endif
+	.no_multiline_responses = FALSE,
+
+	.parse_allow_group      = FALSE,
+	.parse_found_group      = FALSE,
+	.pipelining_enable      = TRUE,
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+	.proxy_session_failed   = FALSE,
+#endif
+
+	.queue_2stage           = FALSE,
+	.queue_only_policy      = FALSE,
+	.queue_run_first_delivery = FALSE,
+	.queue_run_force        = FALSE,
+	.queue_run_local        = FALSE,
+	.queue_running          = FALSE,
+	.queue_smtp             = FALSE,
+
+	.really_exim            = TRUE,
+	.receive_call_bombout   = FALSE,
+	.recipients_discarded   = FALSE,
+	.running_in_test_harness = FALSE,
+
+	.search_find_defer      = FALSE,
+	.sender_address_forced  = FALSE,
+	.sender_host_notsocket  = FALSE,
+	.sender_host_unknown    = FALSE,
+	.sender_local           = FALSE,
+	.sender_name_forced     = FALSE,
+	.sender_set_untrusted   = FALSE,
+	.smtp_authenticated     = FALSE,
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+	.smtp_in_early_pipe_advertised = FALSE,
+	.smtp_in_early_pipe_no_auth = FALSE,
+	.smtp_in_early_pipe_used = FALSE,
+#endif
+	.smtp_in_pipelining_advertised = FALSE,
+	.smtp_in_pipelining_used = FALSE,
+	.spool_file_wireformat  = FALSE,
+	.submission_mode        = FALSE,
+	.suppress_local_fixups  = FALSE,
+	.suppress_local_fixups_default = FALSE,
+	.synchronous_delivery   = FALSE,
+	.system_filtering       = FALSE,
+
+	.tcp_fastopen_ok        = FALSE,
+	.tcp_in_fastopen        = FALSE,
+	.tcp_in_fastopen_data   = FALSE,
+	.tcp_in_fastopen_logged = FALSE,
+	.tcp_out_fastopen_logged= FALSE,
+	.timestamps_utc         = FALSE,
+	.transport_filter_timed_out = FALSE,
+	.trusted_caller         = FALSE,
+	.trusted_config         = TRUE,
+};
+
+/******************************************************************************/
+/* These are the flags which are either variables or mainsection options,
+so an address is needed for access, or are exported to local_scan. */
+
+BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
+BOOL    allow_domain_literals  = FALSE;
+BOOL    allow_mx_to_ip         = FALSE;
+BOOL    allow_utf8_domains     = FALSE;
+BOOL    authentication_failed  = FALSE;
+
+BOOL    bounce_return_body     = TRUE;
+BOOL    bounce_return_message  = TRUE;
+BOOL    check_rfc2047_length   = TRUE;
+BOOL    commandline_checks_require_admin = FALSE;
+
+#ifdef EXPERIMENTAL_DCC
+BOOL    dcc_direct_add_header  = FALSE;
+#endif
+BOOL    debug_store            = FALSE;
+BOOL    delivery_date_remove   = TRUE;
+BOOL    deliver_drop_privilege = FALSE;
+#ifdef ENABLE_DISABLE_FSYNC
+BOOL    disable_fsync          = FALSE;
+#endif
+BOOL    disable_ipv6           = FALSE;
+BOOL    dns_csa_use_reverse    = TRUE;
+BOOL    drop_cr                = FALSE;         /* No longer used */
+
+BOOL    envelope_to_remove     = TRUE;
+BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
+BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
+BOOL    extract_addresses_remove_arguments = TRUE;
+
+BOOL    host_checking          = FALSE;
+BOOL    host_lookup_deferred   = FALSE;
+BOOL    host_lookup_failed     = FALSE;
+BOOL    ignore_fromline_local  = FALSE;
+
+BOOL    local_from_check       = TRUE;
+BOOL    local_sender_retain    = FALSE;
+BOOL    log_timezone           = FALSE;
+BOOL    message_body_newlines  = FALSE;
+BOOL    message_logs           = TRUE;
+#ifdef SUPPORT_I18N
+BOOL    message_smtputf8       = FALSE;
+#endif
+BOOL    mua_wrapper            = FALSE;
+
+BOOL    preserve_message_logs  = FALSE;
+BOOL    print_topbitchars      = FALSE;
+BOOL    prod_requires_admin    = TRUE;
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+BOOL    proxy_session          = FALSE;
+#endif
+
+BOOL    queue_list_requires_admin = TRUE;
+BOOL    queue_only             = FALSE;
+BOOL    queue_only_load_latch  = TRUE;
+BOOL    queue_only_override    = TRUE;
+BOOL    queue_run_in_order     = FALSE;
+BOOL    recipients_max_reject  = FALSE;
+BOOL    return_path_remove     = TRUE;
+
+BOOL    smtp_batched_input     = FALSE;
+BOOL    sender_helo_dnssec     = FALSE;
+BOOL    sender_host_dnssec     = FALSE;
+BOOL    smtp_accept_keepalive  = TRUE;
+BOOL    smtp_check_spool_space = TRUE;
+BOOL    smtp_enforce_sync      = TRUE;
+BOOL    smtp_etrn_serialize    = TRUE;
+BOOL    smtp_input             = FALSE;
+BOOL    smtp_return_error_details = FALSE;
+#ifdef SUPPORT_SPF
+BOOL    spf_result_guessed     = FALSE;
+#endif
+BOOL    split_spool_directory  = FALSE;
+BOOL    spool_wireformat       = FALSE;
+#ifdef EXPERIMENTAL_SRS
+BOOL    srs_usehash            = TRUE;
+BOOL    srs_usetimestamp       = TRUE;
+#endif
+BOOL    strict_acl_vars        = FALSE;
+BOOL    strip_excess_angle_brackets = FALSE;
+BOOL    strip_trailing_dot     = FALSE;
+BOOL    syslog_duplication     = TRUE;
+BOOL    syslog_pid             = TRUE;
+BOOL    syslog_timestamp       = TRUE;
+BOOL    system_filter_gid_set  = FALSE;
+BOOL    system_filter_uid_set  = FALSE;
+
+BOOL    tcp_nodelay            = TRUE;
+BOOL    write_rejectlog        = TRUE;
+
+/******************************************************************************/
+
+header_line *acl_added_headers = NULL;
+tree_node *acl_anchor          = NULL;
+uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
+                                  NULL, NULL, NULL, NULL};
+int     acl_narg               = 0;
+
+int     acl_level	       = 0;
+
+uschar *acl_not_smtp           = NULL;
+#ifdef WITH_CONTENT_SCAN
+uschar *acl_not_smtp_mime      = NULL;
+#endif
+uschar *acl_not_smtp_start     = NULL;
+uschar *acl_removed_headers    = NULL;
+uschar *acl_smtp_auth          = NULL;
+uschar *acl_smtp_connect       = NULL;
+uschar *acl_smtp_data          = NULL;
+#ifndef DISABLE_PRDR
+uschar *acl_smtp_data_prdr     = US"accept";
+#endif
+#ifndef DISABLE_DKIM
+uschar *acl_smtp_dkim          = NULL;
+#endif
+uschar *acl_smtp_etrn          = NULL;
+uschar *acl_smtp_expn          = NULL;
+uschar *acl_smtp_helo          = NULL;
+uschar *acl_smtp_mail          = NULL;
+uschar *acl_smtp_mailauth      = NULL;
+#ifdef WITH_CONTENT_SCAN
+uschar *acl_smtp_mime          = NULL;
+#endif
+uschar *acl_smtp_notquit       = NULL;
+uschar *acl_smtp_predata       = NULL;
+uschar *acl_smtp_quit          = NULL;
+uschar *acl_smtp_rcpt          = NULL;
+uschar *acl_smtp_starttls      = NULL;
+uschar *acl_smtp_vrfy          = NULL;
+
+tree_node *acl_var_c           = NULL;
+tree_node *acl_var_m           = NULL;
+uschar *acl_verify_message     = NULL;
+string_item *acl_warn_logged   = NULL;
+
+/* Names of SMTP places for use in ACL error messages, and corresponding SMTP
+error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
+
+uschar *acl_wherenames[]       = { US"RCPT",
+                                   US"MAIL",
+                                   US"PREDATA",
+                                   US"MIME",
+                                   US"DKIM",
+                                   US"DATA",
+#ifndef DISABLE_PRDR
+                                   US"PRDR",
+#endif
+                                   US"non-SMTP",
+                                   US"AUTH",
+                                   US"connection",
+                                   US"ETRN",
+                                   US"EXPN",
+                                   US"EHLO or HELO",
+                                   US"MAILAUTH",
+                                   US"non-SMTP-start",
+                                   US"NOTQUIT",
+                                   US"QUIT",
+                                   US"STARTTLS",
+                                   US"VRFY",
+				   US"delivery",
+				   US"unknown"
+                                 };
+
+uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
+                                   US"550",     /* MAIL */
+                                   US"550",     /* PREDATA */
+                                   US"550",     /* MIME */
+                                   US"550",     /* DKIM */
+                                   US"550",     /* DATA */
+#ifndef DISABLE_PRDR
+                                   US"550",    /* RCPT PRDR */
+#endif
+                                   US"0",       /* not SMTP; not relevant */
+                                   US"503",     /* AUTH */
+                                   US"550",     /* connect */
+                                   US"458",     /* ETRN */
+                                   US"550",     /* EXPN */
+                                   US"550",     /* HELO/EHLO */
+                                   US"0",       /* MAILAUTH; not relevant */
+                                   US"0",       /* not SMTP; not relevant */
+                                   US"0",       /* NOTQUIT; not relevant */
+                                   US"0",       /* QUIT; not relevant */
+                                   US"550",     /* STARTTLS */
+                                   US"252",     /* VRFY */
+				   US"0",       /* delivery; not relevant */
+				   US"0"        /* unknown; not relevant */
+                                 };
+
+uschar *add_environment        = NULL;
+address_item  *addr_duplicate  = NULL;
+
+address_item address_defaults = {
+  .next =		NULL,
+  .parent =		NULL,
+  .first =		NULL,
+  .dupof =		NULL,
+  .start_router =	NULL,
+  .router =		NULL,
+  .transport =		NULL,
+  .host_list =		NULL,
+  .host_used =		NULL,
+  .fallback_hosts =	NULL,
+  .reply =		NULL,
+  .retries =		NULL,
+  .address =		NULL,
+  .unique =		NULL,
+  .cc_local_part =	NULL,
+  .lc_local_part =	NULL,
+  .local_part =		NULL,
+  .prefix =		NULL,
+  .suffix =		NULL,
+  .domain =		NULL,
+  .address_retry_key =	NULL,
+  .domain_retry_key =	NULL,
+  .current_dir =	NULL,
+  .home_dir =		NULL,
+  .message =		NULL,
+  .user_message =	NULL,
+  .onetime_parent =	NULL,
+  .pipe_expandn =	NULL,
+  .return_filename =	NULL,
+  .self_hostname =	NULL,
+  .shadow_message =	NULL,
+#ifdef SUPPORT_TLS
+  .cipher =		NULL,
+  .ourcert =		NULL,
+  .peercert =		NULL,
+  .peerdn =		NULL,
+  .ocsp =		OCSP_NOT_REQ,
+#endif
+#ifdef EXPERIMENTAL_DSN_INFO
+  .smtp_greeting =	NULL,
+  .helo_response =	NULL,
+#endif
+  .authenticator =	NULL,
+  .auth_id =		NULL,
+  .auth_sndr =		NULL,
+  .dsn_orcpt =		NULL,
+  .dsn_flags =		0,
+  .dsn_aware =		0,
+  .uid =		(uid_t)(-1),
+  .gid =		(gid_t)(-1),
+  .flags =		{ 0 },
+  .domain_cache =	{ 0 },                /* domain_cache - any larger array should be zeroed */
+  .localpart_cache =	{ 0 },                /* localpart_cache - ditto */
+  .mode =		-1,
+  .more_errno =		0,
+  .delivery_usec =	0,
+  .basic_errno =	ERRNO_UNKNOWNERROR,
+  .child_count =	0,
+  .return_file =	-1,
+  .special_action =	SPECIAL_NONE,
+  .transport_return =	DEFER,
+  .prop = {					/* fields that are propagated to children */
+    .address_data =	NULL,
+    .domain_data =	NULL,
+    .localpart_data =	NULL,
+    .errors_address =	NULL,
+    .extra_headers =	NULL,
+    .remove_headers =	NULL,
+#ifdef EXPERIMENTAL_SRS
+    .srs_sender =	NULL,
+#endif
+    .ignore_error =	FALSE,
+#ifdef SUPPORT_I18N
+    .utf8_msg =		FALSE,
+    .utf8_downcvt =	FALSE,
+    .utf8_downcvt_maybe = FALSE
+#endif
+  }
+};
+
+uschar *address_file           = NULL;
+uschar *address_pipe           = NULL;
+tree_node *addresslist_anchor  = NULL;
+int     addresslist_count      = 0;
+gid_t  *admin_groups           = NULL;
+
+#ifdef EXPERIMENTAL_ARC
+struct arc_set *arc_received	= NULL;
+int     arc_received_instance	= 0;
+int     arc_oldest_pass		= 0;
+const uschar *arc_state		= NULL;
+const uschar *arc_state_reason	= NULL;
+#endif
+
+uschar *authenticated_fail_id  = NULL;
+uschar *authenticated_id       = NULL;
+uschar *authenticated_sender   = NULL;
+auth_instance  *auths          = NULL;
+uschar *auth_advertise_hosts   = US"*";
+auth_instance auth_defaults    = {
+    .next =		NULL,
+    .name =		NULL,
+    .info =		NULL,
+    .options_block =	NULL,
+    .driver_name =	NULL,
+    .advertise_condition = NULL,
+    .client_condition =	NULL,
+    .public_name =	NULL,
+    .set_id =		NULL,
+    .set_client_id =	NULL,
+    .mail_auth_condition = NULL,
+    .server_debug_string = NULL,
+    .server_condition =	NULL,
+    .client =		FALSE,
+    .server =		FALSE,
+    .advertised =	FALSE
+};
+
+uschar *auth_defer_msg         = US"reason not recorded";
+uschar *auth_defer_user_msg    = US"";
+uschar *auth_vars[AUTH_VARS];
+int     auto_thaw              = 0;
+#ifdef WITH_CONTENT_SCAN
+int     av_failed              = FALSE;	/* boolean but accessed as vtype_int*/
+uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
+#endif
+
+#if BASE_62 == 62
+uschar *base62_chars=
+    US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+#else
+uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+#endif
+
+uschar *bi_command             = NULL;
+uschar *big_buffer             = NULL;
+int     big_buffer_size        = BIG_BUFFER_SIZE;
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+uschar *bmi_alt_location       = NULL;
+uschar *bmi_base64_tracker_verdict = NULL;
+uschar *bmi_base64_verdict     = NULL;
+uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
+int     bmi_deliver            = 1;
+int     bmi_run                = 0;
+uschar *bmi_verdicts           = NULL;
+#endif
+int     bsmtp_transaction_linecount = 0;
+int     body_8bitmime          = 0;
+int     body_linecount         = 0;
+int     body_zerocount         = 0;
+uschar *bounce_message_file    = NULL;
+uschar *bounce_message_text    = NULL;
+uschar *bounce_recipient       = NULL;
+int     bounce_return_linesize_limit = 998;
+int     bounce_return_size_limit = 100*1024;
+uschar *bounce_sender_authentication = NULL;
+
+uschar *callout_address        = NULL;
+int     callout_cache_domain_positive_expire = 7*24*60*60;
+int     callout_cache_domain_negative_expire = 3*60*60;
+int     callout_cache_positive_expire = 24*60*60;
+int     callout_cache_negative_expire = 2*60*60;
+uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
+uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
+int     check_log_inodes       = 100;
+int_eximarith_t check_log_space = 10*1024;	/* 10K Kbyte == 10MB */
+int     check_spool_inodes     = 100;
+int_eximarith_t check_spool_space = 10*1024;	/* 10K Kbyte == 10MB */
+
+uschar *chunking_advertise_hosts = US"*";
+unsigned chunking_datasize     = 0;
+unsigned chunking_data_left    = 0;
+chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
+const pcre *regex_CHUNKING     = NULL;
+
+uschar *client_authenticator   = NULL;
+uschar *client_authenticated_id = NULL;
+uschar *client_authenticated_sender = NULL;
+int     clmacro_count          = 0;
+uschar *clmacros[MAX_CLMACROS];
+FILE   *config_file            = NULL;
+const uschar *config_filename  = NULL;
+int     config_lineno          = 0;
+#ifdef CONFIGURE_GROUP
+gid_t   config_gid             = CONFIGURE_GROUP;
+#else
+gid_t   config_gid             = 0;
+#endif
+uschar *config_main_filelist   = US CONFIGURE_FILE
+                         "\0<-----------Space to patch configure_filename->";
+uschar *config_main_filename   = NULL;
+uschar *config_main_directory  = NULL;
+
+#ifdef CONFIGURE_OWNER
+uid_t   config_uid             = CONFIGURE_OWNER;
+#else
+uid_t   config_uid             = 0;
+#endif
+
+int     connection_max_messages= -1;
+uschar *continue_proxy_cipher  = NULL;
+uschar *continue_hostname      = NULL;
+uschar *continue_host_address  = NULL;
+int     continue_sequence      = 1;
+uschar *continue_transport     = NULL;
+
+uschar *csa_status             = NULL;
+cut_t   cutthrough = {
+  .callout_hold_only =	FALSE,				/* verify-only: normal delivery */
+  .delivery =		FALSE,				/* when to attempt */
+  .defer_pass =		FALSE,				/* on defer: spool locally */
+  .is_tls =		FALSE,				/* not a TLS conn yet */
+  .cctx =		{.sock = -1},			/* open connection */
+  .nrcpt =		0,				/* number of addresses */
+};
+
+uschar *daemon_smtp_port       = US"smtp";
+int     daemon_startup_retries = 9;
+int     daemon_startup_sleep   = 30;
+
+#ifdef EXPERIMENTAL_DCC
+uschar *dcc_header             = NULL;
+uschar *dcc_result             = NULL;
+uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
+uschar *dccifd_options         = US"header";
+#endif
+
+int     debug_fd               = -1;
+FILE   *debug_file             = NULL;
+int     debug_notall[]         = {
+  Di_memory,
+  Di_noutf8,
+  -1
+};
+bit_table debug_options[]      = { /* must be in alphabetical order and use
+				 only the enum values from macro.h */
+  BIT_TABLE(D, acl),
+  BIT_TABLE(D, all),
+  BIT_TABLE(D, auth),
+  BIT_TABLE(D, deliver),
+  BIT_TABLE(D, dns),
+  BIT_TABLE(D, dnsbl),
+  BIT_TABLE(D, exec),
+  BIT_TABLE(D, expand),
+  BIT_TABLE(D, filter),
+  BIT_TABLE(D, hints_lookup),
+  BIT_TABLE(D, host_lookup),
+  BIT_TABLE(D, ident),
+  BIT_TABLE(D, interface),
+  BIT_TABLE(D, lists),
+  BIT_TABLE(D, load),
+  BIT_TABLE(D, local_scan),
+  BIT_TABLE(D, lookup),
+  BIT_TABLE(D, memory),
+  BIT_TABLE(D, noutf8),
+  BIT_TABLE(D, pid),
+  BIT_TABLE(D, process_info),
+  BIT_TABLE(D, queue_run),
+  BIT_TABLE(D, receive),
+  BIT_TABLE(D, resolver),
+  BIT_TABLE(D, retry),
+  BIT_TABLE(D, rewrite),
+  BIT_TABLE(D, route),
+  BIT_TABLE(D, timestamp),
+  BIT_TABLE(D, tls),
+  BIT_TABLE(D, transport),
+  BIT_TABLE(D, uid),
+  BIT_TABLE(D, verify),
+};
+int     debug_options_count    = nelem(debug_options);
+
+unsigned int debug_selector    = 0;
+int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
+uschar *delay_warning_condition=
+  US"${if or {"
+            "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
+            "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
+            "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
+            "} {no}{yes}}";
+uschar *deliver_address_data   = NULL;
+int     deliver_datafile       = -1;
+const uschar *deliver_domain   = NULL;
+uschar *deliver_domain_data    = NULL;
+const uschar *deliver_domain_orig = NULL;
+const uschar *deliver_domain_parent = NULL;
+time_t  deliver_frozen_at      = 0;
+uschar *deliver_home           = NULL;
+const uschar *deliver_host     = NULL;
+const uschar *deliver_host_address = NULL;
+int     deliver_host_port      = 0;
+uschar *deliver_in_buffer      = NULL;
+ino_t   deliver_inode          = 0;
+uschar *deliver_localpart      = NULL;
+uschar *deliver_localpart_data = NULL;
+uschar *deliver_localpart_orig = NULL;
+uschar *deliver_localpart_parent = NULL;
+uschar *deliver_localpart_prefix = NULL;
+uschar *deliver_localpart_suffix = NULL;
+uschar *deliver_out_buffer     = NULL;
+int     deliver_queue_load_max = -1;
+address_item  *deliver_recipients = NULL;
+uschar *deliver_selectstring   = NULL;
+uschar *deliver_selectstring_sender = NULL;
+
+#ifndef DISABLE_DKIM
+unsigned dkim_collect_input      = 0;
+uschar *dkim_cur_signer          = NULL;
+int     dkim_key_length          = 0;
+void   *dkim_signatures		 = NULL;
+uschar *dkim_signers             = NULL;
+uschar *dkim_signing_domain      = NULL;
+uschar *dkim_signing_selector    = NULL;
+uschar *dkim_verify_overall      = NULL;
+uschar *dkim_verify_signers      = US"$dkim_signers";
+uschar *dkim_verify_status	 = NULL;
+uschar *dkim_verify_reason	 = NULL;
+#endif
+#ifdef EXPERIMENTAL_DMARC
+uschar *dmarc_domain_policy     = NULL;
+uschar *dmarc_forensic_sender   = NULL;
+uschar *dmarc_history_file      = NULL;
+uschar *dmarc_status            = NULL;
+uschar *dmarc_status_text       = NULL;
+uschar *dmarc_tld_file          = NULL;
+uschar *dmarc_used_domain       = NULL;
+#endif
+
+uschar *dns_again_means_nonexist = NULL;
+int     dns_csa_search_limit   = 5;
+int	dns_cname_loops	       = 1;
+#ifdef SUPPORT_DANE
+int     dns_dane_ok            = -1;
+#endif
+uschar *dns_ipv4_lookup        = NULL;
+int     dns_retrans            = 0;
+int     dns_retry              = 0;
+int     dns_dnssec_ok          = -1; /* <0 = not coerced */
+uschar *dns_trust_aa           = NULL;
+int     dns_use_edns0          = -1; /* <0 = not coerced */
+uschar *dnslist_domain         = NULL;
+uschar *dnslist_matched        = NULL;
+uschar *dnslist_text           = NULL;
+uschar *dnslist_value          = NULL;
+tree_node *domainlist_anchor   = NULL;
+int     domainlist_count       = 0;
+uschar *dsn_from               = US DEFAULT_DSN_FROM;
+
+int     errno_quota            = ERRNO_QUOTA;
+uschar *errors_copy            = NULL;
+int     error_handling         = ERRORS_SENDER;
+uschar *errors_reply_to        = NULL;
+int     errors_sender_rc       = EXIT_FAILURE;
+#ifndef DISABLE_EVENT
+uschar *event_action             = NULL;	/* expansion for delivery events */
+uschar *event_data               = NULL;	/* auxiliary data variable for event */
+int     event_defer_errno        = 0;
+const uschar *event_name         = NULL;	/* event name variable */
+#endif
+
+
+gid_t   exim_gid               = EXIM_GID;
+uschar *exim_path              = US BIN_DIRECTORY "/exim"
+                        "\0<---------------Space to patch exim_path->";
+uid_t   exim_uid               = EXIM_UID;
+int     expand_level	       = 0;		/* Nesting depth, indent for debug */
+int     expand_forbid          = 0;
+int     expand_nlength[EXPAND_MAXN+1];
+int     expand_nmax            = -1;
+uschar *expand_nstring[EXPAND_MAXN+1];
+uschar *expand_string_message;
+uschar *extra_local_interfaces = NULL;
+
+int     fake_response          = OK;
+uschar *fake_response_text     = US"Your message has been rejected but is "
+                                   "being kept for evaluation.\nIf it was a "
+                                   "legitimate message, it may still be "
+                                   "delivered to the target recipient(s).";
+int     filter_n[FILTER_VARIABLE_COUNT];
+int     filter_sn[FILTER_VARIABLE_COUNT];
+int     filter_test            = FTEST_NONE;
+uschar *filter_test_sfile      = NULL;
+uschar *filter_test_ufile      = NULL;
+uschar *filter_thisaddress     = NULL;
+int     finduser_retries       = 0;
+uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
+uschar *freeze_tell            = NULL;
+uschar *freeze_tell_config     = NULL;
+uschar *fudged_queue_times     = US"";
+
+uschar *gecos_name             = NULL;
+uschar *gecos_pattern          = NULL;
+rewrite_rule  *global_rewrite_rules = NULL;
+
+volatile sig_atomic_t had_command_timeout = 0;
+volatile sig_atomic_t had_command_sigterm = 0;
+volatile sig_atomic_t had_data_timeout    = 0;
+volatile sig_atomic_t had_data_sigint     = 0;
+uschar *headers_charset        = US HEADERS_CHARSET;
+int     header_insert_maxlen   = 64 * 1024;
+header_line  *header_last      = NULL;
+header_line  *header_list      = NULL;
+int     header_maxsize         = HEADER_MAXSIZE;
+int     header_line_maxsize    = 0;
+
+header_name header_names[] = {
+  /* name		len	allow_resent	htype */
+  { US"bcc",            3,	TRUE,		htype_bcc },
+  { US"cc",             2,	TRUE,		htype_cc },
+  { US"date",           4,	TRUE,		htype_date },
+  { US"delivery-date", 13,	FALSE,		htype_delivery_date },
+  { US"envelope-to",   11,	FALSE,		htype_envelope_to },
+  { US"from",           4,	TRUE,		htype_from },
+  { US"message-id",    10,	TRUE,		htype_id },
+  { US"received",       8,	FALSE,		htype_received },
+  { US"reply-to",       8,	FALSE,		htype_reply_to },
+  { US"return-path",   11,	FALSE,		htype_return_path },
+  { US"sender",         6,	TRUE,		htype_sender },
+  { US"subject",        7,	FALSE,		htype_subject },
+  { US"to",             2,	TRUE,		htype_to }
+};
+
+int header_names_size          = nelem(header_names);
+
+uschar *helo_accept_junk_hosts = NULL;
+uschar *helo_allow_chars       = US"";
+uschar *helo_lookup_domains    = US"@ : @[]";
+uschar *helo_try_verify_hosts  = NULL;
+uschar *helo_verify_hosts      = NULL;
+const uschar *hex_digits       = CUS"0123456789abcdef";
+uschar *hold_domains           = NULL;
+uschar *host_data              = NULL;
+uschar *host_lookup            = NULL;
+uschar *host_lookup_order      = US"bydns:byaddr";
+uschar *host_lookup_msg        = US"";
+int     host_number            = 0;
+uschar *host_number_string     = NULL;
+uschar *host_reject_connection = NULL;
+tree_node *hostlist_anchor     = NULL;
+int     hostlist_count         = 0;
+uschar *hosts_treat_as_local   = NULL;
+uschar *hosts_connection_nolog = NULL;
+
+int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
+uschar *ignore_fromline_hosts  = NULL;
+int     inetd_wait_timeout     = -1;
+uschar *initial_cwd            = NULL;
+uschar *interface_address      = NULL;
+int     interface_port         = -1;
+uschar *iterate_item           = NULL;
+
+int     journal_fd             = -1;
+
+uschar *keep_environment       = NULL;
+
+int     keep_malformed         = 4*24*60*60;    /* 4 days */
+
+uschar *eldap_dn               = NULL;
+int     load_average           = -2;
+uschar *local_from_prefix      = NULL;
+uschar *local_from_suffix      = NULL;
+
+#if HAVE_IPV6
+uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
+#else
+uschar *local_interfaces       = US"0.0.0.0";
+#endif
+
+#ifdef HAVE_LOCAL_SCAN
+uschar *local_scan_data        = NULL;
+int     local_scan_timeout     = 5*60;
+#endif
+gid_t   local_user_gid         = (gid_t)(-1);
+uid_t   local_user_uid         = (uid_t)(-1);
+
+tree_node *localpartlist_anchor= NULL;
+int     localpartlist_count    = 0;
+uschar *log_buffer             = NULL;
+
+int     log_default[]          = { /* for initializing log_selector */
+  Li_acl_warn_skipped,
+  Li_connection_reject,
+  Li_delay_delivery,
+  Li_dkim,
+  Li_dnslist_defer,
+  Li_etrn,
+  Li_host_lookup_failed,
+  Li_lost_incoming_connection,
+  Li_outgoing_interface, /* see d_log_interface in deliver.c */
+  Li_queue_run,
+  Li_rejected_header,
+  Li_retry_defer,
+  Li_sender_verify_fail,
+  Li_size_reject,
+  Li_skip_delivery,
+  Li_smtp_confirmation,
+  Li_tls_certificate_verified,
+  Li_tls_cipher,
+  -1
+};
+
+uschar *log_file_path          = US LOG_FILE_PATH
+                           "\0<--------------Space to patch log_file_path->";
+
+int     log_notall[]           = {
+  -1
+};
+bit_table log_options[]        = { /* must be in alphabetical order */
+  BIT_TABLE(L, 8bitmime),
+  BIT_TABLE(L, acl_warn_skipped),
+  BIT_TABLE(L, address_rewrite),
+  BIT_TABLE(L, all),
+  BIT_TABLE(L, all_parents),
+  BIT_TABLE(L, arguments),
+  BIT_TABLE(L, connection_reject),
+  BIT_TABLE(L, delay_delivery),
+  BIT_TABLE(L, deliver_time),
+  BIT_TABLE(L, delivery_size),
+#ifndef DISABLE_DKIM
+  BIT_TABLE(L, dkim),
+  BIT_TABLE(L, dkim_verbose),
+#endif
+  BIT_TABLE(L, dnslist_defer),
+  BIT_TABLE(L, dnssec),
+  BIT_TABLE(L, etrn),
+  BIT_TABLE(L, host_lookup_failed),
+  BIT_TABLE(L, ident_timeout),
+  BIT_TABLE(L, incoming_interface),
+  BIT_TABLE(L, incoming_port),
+  BIT_TABLE(L, lost_incoming_connection),
+  BIT_TABLE(L, millisec),
+  BIT_TABLE(L, outgoing_interface),
+  BIT_TABLE(L, outgoing_port),
+  BIT_TABLE(L, pid),
+  BIT_TABLE(L, pipelining),
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+  BIT_TABLE(L, proxy),
+#endif
+  BIT_TABLE(L, queue_run),
+  BIT_TABLE(L, queue_time),
+  BIT_TABLE(L, queue_time_overall),
+  BIT_TABLE(L, receive_time),
+  BIT_TABLE(L, received_recipients),
+  BIT_TABLE(L, received_sender),
+  BIT_TABLE(L, rejected_header),
+  { US"rejected_headers", Li_rejected_header },
+  BIT_TABLE(L, retry_defer),
+  BIT_TABLE(L, return_path_on_delivery),
+  BIT_TABLE(L, sender_on_delivery),
+  BIT_TABLE(L, sender_verify_fail),
+  BIT_TABLE(L, size_reject),
+  BIT_TABLE(L, skip_delivery),
+  BIT_TABLE(L, smtp_confirmation),
+  BIT_TABLE(L, smtp_connection),
+  BIT_TABLE(L, smtp_incomplete_transaction),
+  BIT_TABLE(L, smtp_mailauth),
+  BIT_TABLE(L, smtp_no_mail),
+  BIT_TABLE(L, smtp_protocol_error),
+  BIT_TABLE(L, smtp_syntax_error),
+  BIT_TABLE(L, subject),
+  BIT_TABLE(L, tls_certificate_verified),
+  BIT_TABLE(L, tls_cipher),
+  BIT_TABLE(L, tls_peerdn),
+  BIT_TABLE(L, tls_sni),
+  BIT_TABLE(L, unknown_in_list),
+};
+int     log_options_count      = nelem(log_options);
+
+int     log_reject_target      = 0;
+unsigned int log_selector[log_selector_size]; /* initialized in main() */
+uschar *log_selector_string    = NULL;
+FILE   *log_stderr             = NULL;
+uschar *login_sender_address   = NULL;
+uschar *lookup_dnssec_authenticated = NULL;
+int     lookup_open_max        = 25;
+uschar *lookup_value           = NULL;
+
+macro_item *macros_user        = NULL;
+uschar *mailstore_basename     = NULL;
+#ifdef WITH_CONTENT_SCAN
+uschar *malware_name           = NULL;  /* Virus Name */
+#endif
+int     max_received_linelength= 0;
+int     max_username_length    = 0;
+int     message_age            = 0;
+uschar *message_body           = NULL;
+uschar *message_body_end       = NULL;
+int     message_body_size      = 0;
+int     message_body_visible   = 500;
+int     message_ended          = END_NOTSTARTED;
+uschar *message_headers        = NULL;
+uschar *message_id;
+uschar *message_id_domain      = NULL;
+uschar *message_id_text        = NULL;
+struct timeval message_id_tv   = { 0, 0 };
+uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
+uschar *message_id_external;
+int     message_linecount      = 0;
+int     message_size           = 0;
+uschar *message_size_limit     = US"50M";
+#ifdef SUPPORT_I18N
+int     message_utf8_downconvert = 0;	/* -1 ifneeded; 0 never; 1 always */
+#endif
+uschar  message_subdir[2]      = { 0, 0 };
+uschar *message_reference      = NULL;
+
+/* MIME ACL expandables */
+#ifdef WITH_CONTENT_SCAN
+int     mime_anomaly_level     = 0;
+const uschar *mime_anomaly_text      = NULL;
+uschar *mime_boundary          = NULL;
+uschar *mime_charset           = NULL;
+uschar *mime_content_description = NULL;
+uschar *mime_content_disposition = NULL;
+uschar *mime_content_id        = NULL;
+unsigned int mime_content_size = 0;
+uschar *mime_content_transfer_encoding = NULL;
+uschar *mime_content_type      = NULL;
+uschar *mime_decoded_filename  = NULL;
+uschar *mime_filename          = NULL;
+int     mime_is_multipart      = 0;
+int     mime_is_coverletter    = 0;
+int     mime_is_rfc822         = 0;
+int     mime_part_count        = -1;
+#endif
+
+uid_t  *never_users            = NULL;
+
+const int on                   = 1;	/* for setsockopt */
+const int off                  = 0;
+
+uid_t   original_euid;
+gid_t   originator_gid;
+uschar *originator_login       = NULL;
+uschar *originator_name        = NULL;
+uid_t   originator_uid;
+uschar *override_local_interfaces = NULL;
+uschar *override_pid_file_path = NULL;
+
+uschar *percent_hack_domains   = NULL;
+uschar *pid_file_path          = US PID_FILE_PATH
+                           "\0<--------------Space to patch pid_file_path->";
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+uschar *pipe_connect_advertise_hosts = US"*";
+#endif
+uschar *pipelining_advertise_hosts = US"*";
+uschar *primary_hostname       = NULL;
+uschar  process_info[PROCESS_INFO_SIZE];
+int     process_info_len       = 0;
+uschar *process_log_path       = NULL;
+
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+uschar *hosts_proxy            = NULL;
+uschar *proxy_external_address = NULL;
+int     proxy_external_port    = 0;
+uschar *proxy_local_address    = NULL;
+int     proxy_local_port       = 0;
+#endif
+
+uschar *prvscheck_address      = NULL;
+uschar *prvscheck_keynum       = NULL;
+uschar *prvscheck_result       = NULL;
+
+
+const uschar *qualify_domain_recipient = NULL;
+uschar *qualify_domain_sender  = NULL;
+uschar *queue_domains          = NULL;
+int     queue_interval         = -1;
+uschar *queue_name             = US"";
+uschar *queue_only_file        = NULL;
+int     queue_only_load        = -1;
+uschar *queue_run_max          = US"5";
+pid_t   queue_run_pid          = (pid_t)0;
+int     queue_run_pipe         = -1;
+uschar *queue_smtp_domains     = NULL;
+
+uint32_t random_seed	       = 0;
+tree_node *ratelimiters_cmd    = NULL;
+tree_node *ratelimiters_conn   = NULL;
+tree_node *ratelimiters_mail   = NULL;
+uschar *raw_active_hostname    = NULL;
+uschar *raw_sender             = NULL;
+uschar **raw_recipients        = NULL;
+int     raw_recipients_count   = 0;
+
+int     rcpt_count             = 0;
+int     rcpt_fail_count        = 0;
+int     rcpt_defer_count       = 0;
+gid_t   real_gid;
+uid_t   real_uid;
+int     receive_linecount      = 0;
+int     receive_messagecount   = 0;
+int     receive_timeout        = 0;
+int     received_count         = 0;
+uschar *received_for           = NULL;
+
+/*  This is the default text for Received headers generated by Exim. The
+date  will be automatically added on the end. */
+
+uschar *received_header_text   = US
+     "Received: "
+     "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
+     "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
+     "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
+     "by $primary_hostname "
+     "${if def:received_protocol {with $received_protocol}} "
+     #ifdef SUPPORT_TLS
+     "${if def:tls_cipher {($tls_cipher)\n\t}}"
+     #endif
+     "(Exim $version_number)\n\t"
+     "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
+     "id $message_exim_id"
+     "${if def:received_for {\n\tfor $received_for}}"
+     "\0<---------------Space to patch received_header_text->";
+
+int     received_headers_max   = 30;
+uschar *received_protocol      = NULL;
+struct timeval received_time   = { 0, 0 };
+struct timeval received_time_taken = { 0, 0 };
+uschar *recipient_data         = NULL;
+uschar *recipient_unqualified_hosts = NULL;
+uschar *recipient_verify_failure = NULL;
+int     recipients_count       = 0;
+recipient_item  *recipients_list = NULL;
+int     recipients_list_max    = 0;
+int     recipients_max         = 0;
+const pcre *regex_AUTH         = NULL;
+const pcre *regex_check_dns_names = NULL;
+const pcre *regex_From         = NULL;
+const pcre *regex_IGNOREQUOTA  = NULL;
+const pcre *regex_PIPELINING   = NULL;
+const pcre *regex_SIZE         = NULL;
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+const pcre *regex_EARLY_PIPE   = NULL;
+#endif
+const pcre *regex_ismsgid      = NULL;
+const pcre *regex_smtp_code    = NULL;
+uschar *regex_vars[REGEX_VARS];
+#ifdef WHITELIST_D_MACROS
+const pcre *regex_whitelisted_macro = NULL;
+#endif
+#ifdef WITH_CONTENT_SCAN
+uschar *regex_match_string     = NULL;
+#endif
+int     remote_delivery_count  = 0;
+int     remote_max_parallel    = 2;
+uschar *remote_sort_domains    = NULL;
+int     retry_data_expire      = 7*24*60*60;
+int     retry_interval_max     = 24*60*60;
+int     retry_maximum_timeout  = 0;        /* set from retry config */
+retry_config  *retries         = NULL;
+uschar *return_path            = NULL;
+int     rewrite_existflags     = 0;
+uschar *rfc1413_hosts          = US"@[]";
+int     rfc1413_query_timeout  = 0;
+uid_t   root_gid               = ROOT_GID;
+uid_t   root_uid               = ROOT_UID;
+
+router_instance  *routers  = NULL;
+router_instance  router_defaults = {
+    .next =			NULL,
+    .name =			NULL,
+    .info =			NULL,
+    .options_block =		NULL,
+    .driver_name =		NULL,
+
+    .address_data =		NULL,
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+    .bmi_rule =			NULL,
+#endif
+    .cannot_route_message =	NULL,
+    .condition =		NULL,
+    .current_directory =	NULL,
+    .debug_string =		NULL,
+    .domains =			NULL,
+    .errors_to =		NULL,
+    .expand_gid =		NULL,
+    .expand_uid =		NULL,
+    .expand_more =		NULL,
+    .expand_unseen =		NULL,
+    .extra_headers =		NULL,
+    .fallback_hosts =		NULL,
+    .home_directory =		NULL,
+    .ignore_target_hosts =	NULL,
+    .local_parts =		NULL,
+    .pass_router_name =		NULL,
+    .prefix =			NULL,
+    .redirect_router_name =	NULL,
+    .remove_headers =		NULL,
+    .require_files =		NULL,
+    .router_home_directory =	NULL,
+    .self =			US"freeze",
+    .senders =			NULL,
+    .suffix =			NULL,
+    .translate_ip_address =	NULL,
+    .transport_name =		NULL,
+
+    .address_test =		TRUE,
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+    .bmi_deliver_alternate =	FALSE,
+    .bmi_deliver_default =	FALSE,
+    .bmi_dont_deliver =		FALSE,
+#endif
+    .expn =			TRUE,
+    .caseful_local_part =	FALSE,
+    .check_local_user =		FALSE,
+    .disable_logging =		FALSE,
+    .fail_verify_recipient =	FALSE,
+    .fail_verify_sender =	FALSE,
+    .gid_set =			FALSE,
+    .initgroups =		FALSE,
+    .log_as_local =		TRUE_UNSET,
+    .more =			TRUE,
+    .pass_on_timeout =		FALSE,
+    .prefix_optional =		FALSE,
+    .repeat_use =		TRUE,
+    .retry_use_local_part =	TRUE_UNSET,
+    .same_domain_copy_routing =	FALSE,
+    .self_rewrite =		FALSE,
+    .suffix_optional =		FALSE,
+    .verify_only =		FALSE,
+    .verify_recipient =		TRUE,
+    .verify_sender =		TRUE,
+    .uid_set =			FALSE,
+    .unseen =			FALSE,
+    .dsn_lasthop =		FALSE,
+
+    .self_code =		self_freeze,
+    .uid =			(uid_t)(-1),
+    .gid =			(gid_t)(-1),
+
+    .fallback_hostlist =	NULL,
+    .transport =		NULL,
+    .pass_router =		NULL,
+    .redirect_router =		NULL,
+
+    .dnssec =			{ NULL, NULL },            /* dnssec_domains {require,request} */
+};
+
+uschar *router_name            = NULL;
+
+ip_address_item *running_interfaces = NULL;
+
+/* This is a weird one. The following string gets patched in the binary by the
+script that sets up a copy of Exim for running in the test harness. It seems
+that compilers are now clever, and share constant strings if they can.
+Elsewhere in Exim the string "<" is used. The compiler optimization seems to
+make use of the end of this string in order to save space. So the patching then
+wrecks this. We defeat this optimization by adding some additional characters
+onto the end of the string. */
+
+uschar *running_status         = US">>>running<<<" "\0EXTRA";
+
+int     runrc                  = 0;
+
+uschar *search_error_message   = NULL;
+uschar *self_hostname          = NULL;
+uschar *sender_address         = NULL;
+unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
+uschar *sender_address_data    = NULL;
+uschar *sender_address_unrewritten = NULL;
+uschar *sender_data            = NULL;
+unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
+uschar *sender_fullhost        = NULL;
+uschar *sender_helo_name       = NULL;
+uschar **sender_host_aliases   = &no_aliases;
+uschar *sender_host_address    = NULL;
+uschar *sender_host_authenticated = NULL;
+uschar *sender_host_auth_pubname  = NULL;
+unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
+uschar *sender_host_name       = NULL;
+int     sender_host_port       = 0;
+uschar *sender_ident           = NULL;
+uschar *sender_rate            = NULL;
+uschar *sender_rate_limit      = NULL;
+uschar *sender_rate_period     = NULL;
+uschar *sender_rcvhost         = NULL;
+uschar *sender_unqualified_hosts = NULL;
+uschar *sender_verify_failure = NULL;
+address_item *sender_verified_list  = NULL;
+address_item *sender_verified_failed = NULL;
+int     sender_verified_rc     = -1;
+uschar *sending_ip_address     = NULL;
+int     sending_port           = -1;
+SIGNAL_BOOL sigalrm_seen       = FALSE;
+const uschar *sigalarm_setter  = NULL;
+uschar **sighup_argv           = NULL;
+int     slow_lookup_log        = 0;	/* millisecs, zero disables */
+int     smtp_accept_count      = 0;
+int     smtp_accept_max        = 20;
+int     smtp_accept_max_nonmail= 10;
+uschar *smtp_accept_max_nonmail_hosts = US"*";
+int     smtp_accept_max_per_connection = 1000;
+uschar *smtp_accept_max_per_host = NULL;
+int     smtp_accept_queue      = 0;
+int     smtp_accept_queue_per_connection = 10;
+int     smtp_accept_reserve    = 0;
+uschar *smtp_active_hostname   = NULL;
+uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
+                             "Exim $version_number $tod_full"
+                             "\0<---------------Space to patch smtp_banner->";
+int     smtp_ch_index          = 0;
+uschar *smtp_cmd_argument      = NULL;
+uschar *smtp_cmd_buffer        = NULL;
+struct timeval smtp_connection_start  = {0,0};
+uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
+int     smtp_connect_backlog   = 20;
+double  smtp_delay_mail        = 0.0;
+double  smtp_delay_rcpt        = 0.0;
+FILE   *smtp_in                = NULL;
+int     smtp_load_reserve      = -1;
+int     smtp_mailcmd_count     = 0;
+FILE   *smtp_out               = NULL;
+uschar *smtp_etrn_command      = NULL;
+int     smtp_max_synprot_errors= 3;
+int     smtp_max_unknown_commands = 3;
+uschar *smtp_notquit_reason    = NULL;
+uschar *smtp_ratelimit_hosts   = NULL;
+uschar *smtp_ratelimit_mail    = NULL;
+uschar *smtp_ratelimit_rcpt    = NULL;
+uschar *smtp_read_error        = US"";
+int     smtp_receive_timeout   = 5*60;
+uschar *smtp_receive_timeout_s = NULL;
+uschar *smtp_reserve_hosts     = NULL;
+int     smtp_rlm_base          = 0;
+double  smtp_rlm_factor        = 0.0;
+int     smtp_rlm_limit         = 0;
+int     smtp_rlm_threshold     = INT_MAX;
+int     smtp_rlr_base          = 0;
+double  smtp_rlr_factor        = 0.0;
+int     smtp_rlr_limit         = 0;
+int     smtp_rlr_threshold     = INT_MAX;
+unsigned smtp_peer_options     = 0;
+unsigned smtp_peer_options_wrap= 0;
+#ifdef SUPPORT_I18N
+uschar *smtputf8_advertise_hosts = US"*";	/* overridden under test-harness */
+#endif
+
+#ifdef WITH_CONTENT_SCAN
+uschar *spamd_address          = US"127.0.0.1 783";
+uschar *spam_bar               = NULL;
+uschar *spam_report            = NULL;
+uschar *spam_action            = NULL;
+uschar *spam_score             = NULL;
+uschar *spam_score_int         = NULL;
+#endif
+#ifdef SUPPORT_SPF
+uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
+uschar *spf_header_comment     = NULL;
+uschar *spf_received           = NULL;
+uschar *spf_result             = NULL;
+uschar *spf_smtp_comment       = NULL;
+#endif
+
+FILE   *spool_data_file	       = NULL;
+uschar *spool_directory        = US SPOOL_DIRECTORY
+                           "\0<--------------Space to patch spool_directory->";
+#ifdef EXPERIMENTAL_SRS
+uschar *srs_config             = NULL;
+uschar *srs_db_address         = NULL;
+uschar *srs_db_key             = NULL;
+int     srs_hashlength         = 6;
+int     srs_hashmin            = -1;
+int     srs_maxage             = 31;
+uschar *srs_orig_recipient     = NULL;
+uschar *srs_orig_sender        = NULL;
+uschar *srs_recipient          = NULL;
+uschar *srs_secrets            = NULL;
+uschar *srs_status             = NULL;
+#endif
+int     string_datestamp_offset= -1;
+int     string_datestamp_length= 0;
+int     string_datestamp_type  = -1;
+uschar *submission_domain      = NULL;
+uschar *submission_name        = NULL;
+int     syslog_facility        = LOG_MAIL;
+uschar *syslog_processname     = US"exim";
+uschar *system_filter          = NULL;
+
+uschar *system_filter_directory_transport = NULL;
+uschar *system_filter_file_transport = NULL;
+uschar *system_filter_pipe_transport = NULL;
+uschar *system_filter_reply_transport = NULL;
+
+gid_t   system_filter_gid      = 0;
+uid_t   system_filter_uid      = (uid_t)-1;
+
+blob	tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
+tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
+#ifdef USE_TCP_WRAPPERS
+uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
+#endif
+int     test_harness_load_avg  = 0;
+int     thismessage_size_limit = 0;
+int     timeout_frozen_after   = 0;
+
+transport_instance  *transports = NULL;
+
+transport_instance  transport_defaults = {
+    .next =			NULL,
+    .name =			NULL,
+    .info =			NULL,
+    .options_block =		NULL,
+    .driver_name =		NULL,
+    .setup =			NULL,
+    .batch_max =		1,
+    .batch_id =			NULL,
+    .home_dir =			NULL,
+    .current_dir =		NULL,
+    .expand_multi_domain =	NULL,
+    .multi_domain =		TRUE,
+    .overrides_hosts =		FALSE,
+    .max_addresses =		100,
+    .connection_max_messages =	500,
+    .deliver_as_creator =	FALSE,
+    .disable_logging =		FALSE,
+    .initgroups =		FALSE,
+    .uid_set =			FALSE,
+    .gid_set =			FALSE,
+    .uid =			(uid_t)(-1),
+    .gid =			(gid_t)(-1),
+    .expand_uid =		NULL,
+    .expand_gid =		NULL,
+    .warn_message =		NULL,
+    .shadow =			NULL,
+    .shadow_condition =		NULL,
+    .filter_command =		NULL,
+    .add_headers =		NULL,
+    .remove_headers =		NULL,
+    .return_path =		NULL,
+    .debug_string =		NULL,
+    .max_parallel =		NULL,
+    .message_size_limit =	NULL,
+    .headers_rewrite =		NULL,
+    .rewrite_rules =		NULL,
+    .rewrite_existflags =	0,
+    .filter_timeout =		300,
+    .body_only =		FALSE,
+    .delivery_date_add =	FALSE,
+    .envelope_to_add =		FALSE,
+    .headers_only =		FALSE,
+    .rcpt_include_affixes =	FALSE,
+    .return_path_add =		FALSE,
+    .return_output =		FALSE,
+    .return_fail_output =	FALSE,
+    .log_output =		FALSE,
+    .log_fail_output =		FALSE,
+    .log_defer_output =		FALSE,
+    .retry_use_local_part =	TRUE_UNSET,	/* retry_use_local_part: BOOL, but set neither
+						 1 nor 0 so can detect unset */
+#ifndef DISABLE_EVENT
+   .event_action =		NULL
+#endif
+};
+
+int     transport_count;
+uschar *transport_name          = NULL;
+int     transport_newlines;
+const uschar **transport_filter_argv  = NULL;
+int     transport_filter_timeout;
+int     transport_write_timeout= 0;
+
+tree_node  *tree_dns_fails     = NULL;
+tree_node  *tree_duplicates    = NULL;
+tree_node  *tree_nonrecipients = NULL;
+tree_node  *tree_unusable      = NULL;
+
+gid_t  *trusted_groups         = NULL;
+uid_t  *trusted_users          = NULL;
+uschar *timezone_string        = US TIMEZONE_DEFAULT;
+
+uschar *unknown_login          = NULL;
+uschar *unknown_username       = NULL;
+uschar *untrusted_set_sender   = NULL;
+
+/*  A regex for matching a "From_" line in an incoming message, in the form
+
+    From ph10 Fri Jan  5 12:35 GMT 1996
+
+which  the "mail" commands send to the MTA (undocumented, of course), or in
+the  form
+
+    From ph10 Fri, 7 Jan 97 14:00:00 GMT
+
+which  is apparently used by some UUCPs, despite it not being in RFC 976.
+Because  of variations in time formats, just match up to the minutes. That
+should  be sufficient. Examples have been seen of time fields like 12:1:03,
+so  just require one digit for hours and minutes. The weekday is also absent
+in  some forms. */
+
+uschar *uucp_from_pattern      = US
+   "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
+   "(?:"                                          /* Non-extracting bracket */
+   "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
+   "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
+   ")"                                            /* End alternation */
+   "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
+
+uschar *uucp_from_sender       = US"$1";
+
+uschar *verify_mode	       = NULL;
+uschar *version_copyright      =
+ US"Copyright (c) University of Cambridge, 1995 - 2018\n"
+   "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
+uschar *version_date           = US"?";
+uschar *version_cnumber        = US"????";
+uschar *version_string         = US"?";
+
+uschar *warn_message_file      = NULL;
+int     warning_count          = 0;
+uschar *warnmsg_delay          = NULL;
+uschar *warnmsg_recipients     = NULL;
+
+
+/*  End of globals.c */