src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = nelem(optionlist_auths);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible.  Note that these are
 102 only used for smtp connections, not for service-daemon access. */
 103
 104 tls_support tls_in = {
 105  .active =              {.sock = -1},
 106  .bits =                0,
 107  .certificate_verified = FALSE,
 108 #ifdef SUPPORT_DANE
 109  .dane_verified =       FALSE,
 110  .tlsa_usage =          0,
 111 #endif
 112  .cipher =              NULL,
 113  .on_connect =          FALSE,
 114  .on_connect_ports =    NULL,
 115  .ourcert =             NULL,
 116  .peercert =            NULL,
 117  .peerdn =              NULL,
 118  .sni =                 NULL,
 119  .ocsp =                OCSP_NOT_REQ
 120 };
 121 tls_support tls_out = {
 122  .active =              {.sock = -1},
 123  .bits =                0,
 124  .certificate_verified = FALSE,
 125 #ifdef SUPPORT_DANE
 126  .dane_verified =       FALSE,
 127  .tlsa_usage =          0,
 128 #endif
 129  .cipher =              NULL,
 130  .on_connect =          FALSE,
 131  .on_connect_ports =    NULL,
 132  .ourcert =             NULL,
 133  .peercert =            NULL,
 134  .peerdn =              NULL,
 135  .sni =                 NULL,
 136  .ocsp =                OCSP_NOT_REQ
 137 };
 138
 139 uschar *dsn_envid              = NULL;
 140 int     dsn_ret                = 0;
 141 const pcre  *regex_DSN         = NULL;
 142 uschar *dsn_advertise_hosts    = NULL;
 143
 144 #ifdef SUPPORT_TLS
 145 BOOL    gnutls_compat_mode     = FALSE;
 146 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 147 uschar *openssl_options        = NULL;
 148 const pcre *regex_STARTTLS     = NULL;
 149 uschar *tls_advertise_hosts    = US"*";
 150 uschar *tls_certificate        = NULL;
 151 uschar *tls_crl                = NULL;
 152 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 153 that's the interop problem which has been observed: GnuTLS suggesting a higher
 154 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 155 int     tls_dh_max_bits        = 2236;
 156 uschar *tls_dhparam            = NULL;
 157 uschar *tls_eccurve            = US"auto";
 158 # ifndef DISABLE_OCSP
 159 uschar *tls_ocsp_file          = NULL;
 160 # endif
 161 uschar *tls_privatekey         = NULL;
 162 BOOL    tls_remember_esmtp     = FALSE;
 163 uschar *tls_require_ciphers    = NULL;
 164 # ifdef EXPERIMENTAL_REQUIRETLS
 165 uschar  tls_requiretls         = 0;     /* REQUIRETLS_MSG etc. bit #defines */
 166 uschar *tls_advertise_requiretls = US"*";
 167 const pcre *regex_REQUIRETLS   = NULL;
 168 # endif
 169 uschar *tls_try_verify_hosts   = NULL;
 170 uschar *tls_verify_certificates= US"system";
 171 uschar *tls_verify_hosts       = NULL;
 172 #else   /*!SUPPORT_TLS*/
 173 uschar *tls_advertise_hosts    = NULL;
 174 #endif
 175
 176 #ifndef DISABLE_PRDR
 177 /* Per Recipient Data Response variables */
 178 BOOL    prdr_enable            = FALSE;
 179 BOOL    prdr_requested         = FALSE;
 180 const pcre *regex_PRDR         = NULL;
 181 #endif
 182
 183 #ifdef SUPPORT_I18N
 184 const pcre *regex_UTF8         = NULL;
 185 #endif
 186
 187 /* Input-reading functions for messages, so we can use special ones for
 188 incoming TCP/IP. The defaults use stdin. We never need these for any
 189 stand-alone tests. */
 190
 191 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 192 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 193 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 194 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 195 int (*receive_getc)(unsigned)  = stdin_getc;
 196 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 197 void (*receive_get_cache)(void)= NULL;
 198 int (*receive_ungetc)(int)     = stdin_ungetc;
 199 int (*receive_feof)(void)      = stdin_feof;
 200 int (*receive_ferror)(void)    = stdin_ferror;
 201 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 202 #endif
 203
 204
 205 /* List of per-address expansion variables for clearing and saving/restoring
 206 when verifying one address while routing/verifying another. We have to have
 207 the size explicit, because it is referenced from more than one module. */
 208
 209 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 210   CUSS &deliver_address_data,
 211   CUSS &deliver_domain,
 212   CUSS &deliver_domain_data,
 213   CUSS &deliver_domain_orig,
 214   CUSS &deliver_domain_parent,
 215   CUSS &deliver_localpart,
 216   CUSS &deliver_localpart_data,
 217   CUSS &deliver_localpart_orig,
 218   CUSS &deliver_localpart_parent,
 219   CUSS &deliver_localpart_prefix,
 220   CUSS &deliver_localpart_suffix,
 221   CUSS (uschar **)(&deliver_recipients),
 222   CUSS &deliver_host,
 223   CUSS &deliver_home,
 224   CUSS &address_file,
 225   CUSS &address_pipe,
 226   CUSS &self_hostname,
 227   NULL };
 228
 229 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 230
 231 /******************************************************************************/
 232 /* General global variables.  Boolean flags are done as a group
 233 so that only one bit each is needed, packed, for all those we never
 234 need to take a pointer - and only a char for the rest.
 235 This means a struct, unfortunately since it clutters the sourcecode. */
 236
 237 struct global_flags f =
 238 {
 239         .acl_temp_details       = FALSE,
 240         .active_local_from_check = FALSE,
 241         .active_local_sender_retain = FALSE,
 242         .address_test_mode      = FALSE,
 243         .admin_user             = FALSE,
 244         .allow_auth_unadvertised= FALSE,
 245         .allow_unqualified_recipient = TRUE,    /* For local messages */
 246         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 247         .authentication_local   = FALSE,
 248
 249         .background_daemon      = TRUE,
 250
 251         .chunking_offered       = FALSE,
 252         .config_changed         = FALSE,
 253         .continue_more          = FALSE,
 254
 255         .daemon_listen          = FALSE,
 256         .debug_daemon           = FALSE,
 257         .deliver_firsttime      = FALSE,
 258         .deliver_force          = FALSE,
 259         .deliver_freeze         = FALSE,
 260         .deliver_force_thaw     = FALSE,
 261         .deliver_manual_thaw    = FALSE,
 262         .deliver_selectstring_regex = FALSE,
 263         .deliver_selectstring_sender_regex = FALSE,
 264         .disable_callout_flush  = FALSE,
 265         .disable_delay_flush    = FALSE,
 266         .disable_logging        = FALSE,
 267 #ifndef DISABLE_DKIM
 268         .dkim_disable_verify      = FALSE,
 269 #endif
 270 #ifdef EXPERIMENTAL_DMARC
 271         .dmarc_has_been_checked  = FALSE,
 272         .dmarc_disable_verify    = FALSE,
 273         .dmarc_enable_forensic   = FALSE,
 274 #endif
 275         .dont_deliver           = FALSE,
 276         .dot_ends               = TRUE,
 277
 278         .enable_dollar_recipients = FALSE,
 279         .expand_string_forcedfail = FALSE,
 280
 281         .filter_running         = FALSE,
 282
 283         .header_rewritten       = FALSE,
 284         .helo_verified          = FALSE,
 285         .helo_verify_failed     = FALSE,
 286         .host_checking_callout  = FALSE,
 287         .host_find_failed_syntax= FALSE,
 288
 289         .inetd_wait_mode        = FALSE,
 290         .is_inetd               = FALSE,
 291
 292         .local_error_message    = FALSE,
 293         .log_testing_mode       = FALSE,
 294
 295 #ifdef WITH_CONTENT_SCAN
 296         .no_mbox_unspool        = FALSE,
 297 #endif
 298         .no_multiline_responses = FALSE,
 299
 300         .parse_allow_group      = FALSE,
 301         .parse_found_group      = FALSE,
 302         .pipelining_enable      = TRUE,
 303 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 304         .proxy_session_failed   = FALSE,
 305 #endif
 306
 307         .queue_2stage           = FALSE,
 308         .queue_only_policy      = FALSE,
 309         .queue_run_first_delivery = FALSE,
 310         .queue_run_force        = FALSE,
 311         .queue_run_local        = FALSE,
 312         .queue_running          = FALSE,
 313         .queue_smtp             = FALSE,
 314
 315         .really_exim            = TRUE,
 316         .receive_call_bombout   = FALSE,
 317         .recipients_discarded   = FALSE,
 318         .running_in_test_harness = FALSE,
 319
 320         .search_find_defer      = FALSE,
 321         .sender_address_forced  = FALSE,
 322         .sender_host_notsocket  = FALSE,
 323         .sender_host_unknown    = FALSE,
 324         .sender_local           = FALSE,
 325         .sender_name_forced     = FALSE,
 326         .sender_set_untrusted   = FALSE,
 327         .smtp_authenticated     = FALSE,
 328 #ifdef EXPERIMENTAL_PIPE_CONNECT
 329         .smtp_in_early_pipe_advertised = FALSE,
 330         .smtp_in_early_pipe_no_auth = FALSE,
 331         .smtp_in_early_pipe_used = FALSE,
 332 #endif
 333         .smtp_in_pipelining_advertised = FALSE,
 334         .smtp_in_pipelining_used = FALSE,
 335         .spool_file_wireformat  = FALSE,
 336         .submission_mode        = FALSE,
 337         .suppress_local_fixups  = FALSE,
 338         .suppress_local_fixups_default = FALSE,
 339         .synchronous_delivery   = FALSE,
 340         .system_filtering       = FALSE,
 341
 342         .tcp_fastopen_ok        = FALSE,
 343         .tcp_in_fastopen        = FALSE,
 344         .tcp_in_fastopen_data   = FALSE,
 345         .tcp_in_fastopen_logged = FALSE,
 346         .tcp_out_fastopen_logged= FALSE,
 347         .timestamps_utc         = FALSE,
 348         .transport_filter_timed_out = FALSE,
 349         .trusted_caller         = FALSE,
 350         .trusted_config         = TRUE,
 351 };
 352
 353 /******************************************************************************/
 354 /* These are the flags which are either variables or mainsection options,
 355 so an address is needed for access, or are exported to local_scan. */
 356
 357 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 358 BOOL    allow_domain_literals  = FALSE;
 359 BOOL    allow_mx_to_ip         = FALSE;
 360 BOOL    allow_utf8_domains     = FALSE;
 361 BOOL    authentication_failed  = FALSE;
 362
 363 BOOL    bounce_return_body     = TRUE;
 364 BOOL    bounce_return_message  = TRUE;
 365 BOOL    check_rfc2047_length   = TRUE;
 366 BOOL    commandline_checks_require_admin = FALSE;
 367
 368 #ifdef EXPERIMENTAL_DCC
 369 BOOL    dcc_direct_add_header  = FALSE;
 370 #endif
 371 BOOL    debug_store            = FALSE;
 372 BOOL    delivery_date_remove   = TRUE;
 373 BOOL    deliver_drop_privilege = FALSE;
 374 #ifdef ENABLE_DISABLE_FSYNC
 375 BOOL    disable_fsync          = FALSE;
 376 #endif
 377 BOOL    disable_ipv6           = FALSE;
 378 BOOL    dns_csa_use_reverse    = TRUE;
 379 BOOL    drop_cr                = FALSE;         /* No longer used */
 380
 381 BOOL    envelope_to_remove     = TRUE;
 382 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 383 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 384 BOOL    extract_addresses_remove_arguments = TRUE;
 385
 386 BOOL    host_checking          = FALSE;
 387 BOOL    host_lookup_deferred   = FALSE;
 388 BOOL    host_lookup_failed     = FALSE;
 389 BOOL    ignore_fromline_local  = FALSE;
 390
 391 struct init init               = { 0 };         /* lazy_init */
 392
 393 BOOL    local_from_check       = TRUE;
 394 BOOL    local_sender_retain    = FALSE;
 395 BOOL    log_timezone           = FALSE;
 396 BOOL    message_body_newlines  = FALSE;
 397 BOOL    message_logs           = TRUE;
 398 #ifdef SUPPORT_I18N
 399 BOOL    message_smtputf8       = FALSE;
 400 #endif
 401 BOOL    mua_wrapper            = FALSE;
 402
 403 BOOL    preserve_message_logs  = FALSE;
 404 BOOL    print_topbitchars      = FALSE;
 405 BOOL    prod_requires_admin    = TRUE;
 406 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 407 BOOL    proxy_session          = FALSE;
 408 #endif
 409
 410 BOOL    queue_list_requires_admin = TRUE;
 411 BOOL    queue_only             = FALSE;
 412 BOOL    queue_only_load_latch  = TRUE;
 413 BOOL    queue_only_override    = TRUE;
 414 BOOL    queue_run_in_order     = FALSE;
 415 BOOL    recipients_max_reject  = FALSE;
 416 BOOL    return_path_remove     = TRUE;
 417
 418 BOOL    smtp_batched_input     = FALSE;
 419 BOOL    sender_helo_dnssec     = FALSE;
 420 BOOL    sender_host_dnssec     = FALSE;
 421 BOOL    smtp_accept_keepalive  = TRUE;
 422 BOOL    smtp_check_spool_space = TRUE;
 423 BOOL    smtp_enforce_sync      = TRUE;
 424 BOOL    smtp_etrn_serialize    = TRUE;
 425 BOOL    smtp_input             = FALSE;
 426 BOOL    smtp_return_error_details = FALSE;
 427 #ifdef SUPPORT_SPF
 428 BOOL    spf_result_guessed     = FALSE;
 429 #endif
 430 BOOL    split_spool_directory  = FALSE;
 431 BOOL    spool_wireformat       = FALSE;
 432 #ifdef EXPERIMENTAL_SRS
 433 BOOL    srs_usehash            = TRUE;
 434 BOOL    srs_usetimestamp       = TRUE;
 435 #endif
 436 BOOL    strict_acl_vars        = FALSE;
 437 BOOL    strip_excess_angle_brackets = FALSE;
 438 BOOL    strip_trailing_dot     = FALSE;
 439 BOOL    syslog_duplication     = TRUE;
 440 BOOL    syslog_pid             = TRUE;
 441 BOOL    syslog_timestamp       = TRUE;
 442 BOOL    system_filter_gid_set  = FALSE;
 443 BOOL    system_filter_uid_set  = FALSE;
 444
 445 BOOL    tcp_nodelay            = TRUE;
 446 BOOL    write_rejectlog        = TRUE;
 447
 448 /******************************************************************************/
 449
 450 header_line *acl_added_headers = NULL;
 451 tree_node *acl_anchor          = NULL;
 452 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 453                                   NULL, NULL, NULL, NULL};
 454 int     acl_narg               = 0;
 455
 456 int     acl_level              = 0;
 457
 458 uschar *acl_not_smtp           = NULL;
 459 #ifdef WITH_CONTENT_SCAN
 460 uschar *acl_not_smtp_mime      = NULL;
 461 #endif
 462 uschar *acl_not_smtp_start     = NULL;
 463 uschar *acl_removed_headers    = NULL;
 464 uschar *acl_smtp_auth          = NULL;
 465 uschar *acl_smtp_connect       = NULL;
 466 uschar *acl_smtp_data          = NULL;
 467 #ifndef DISABLE_PRDR
 468 uschar *acl_smtp_data_prdr     = US"accept";
 469 #endif
 470 #ifndef DISABLE_DKIM
 471 uschar *acl_smtp_dkim          = NULL;
 472 #endif
 473 uschar *acl_smtp_etrn          = NULL;
 474 uschar *acl_smtp_expn          = NULL;
 475 uschar *acl_smtp_helo          = NULL;
 476 uschar *acl_smtp_mail          = NULL;
 477 uschar *acl_smtp_mailauth      = NULL;
 478 #ifdef WITH_CONTENT_SCAN
 479 uschar *acl_smtp_mime          = NULL;
 480 #endif
 481 uschar *acl_smtp_notquit       = NULL;
 482 uschar *acl_smtp_predata       = NULL;
 483 uschar *acl_smtp_quit          = NULL;
 484 uschar *acl_smtp_rcpt          = NULL;
 485 uschar *acl_smtp_starttls      = NULL;
 486 uschar *acl_smtp_vrfy          = NULL;
 487
 488 tree_node *acl_var_c           = NULL;
 489 tree_node *acl_var_m           = NULL;
 490 uschar *acl_verify_message     = NULL;
 491 string_item *acl_warn_logged   = NULL;
 492
 493 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 494 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 495
 496 uschar *acl_wherenames[]       = { US"RCPT",
 497                                    US"MAIL",
 498                                    US"PREDATA",
 499                                    US"MIME",
 500                                    US"DKIM",
 501                                    US"DATA",
 502 #ifndef DISABLE_PRDR
 503                                    US"PRDR",
 504 #endif
 505                                    US"non-SMTP",
 506                                    US"AUTH",
 507                                    US"connection",
 508                                    US"ETRN",
 509                                    US"EXPN",
 510                                    US"EHLO or HELO",
 511                                    US"MAILAUTH",
 512                                    US"non-SMTP-start",
 513                                    US"NOTQUIT",
 514                                    US"QUIT",
 515                                    US"STARTTLS",
 516                                    US"VRFY",
 517                                    US"delivery",
 518                                    US"unknown"
 519                                  };
 520
 521 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 522                                    US"550",     /* MAIL */
 523                                    US"550",     /* PREDATA */
 524                                    US"550",     /* MIME */
 525                                    US"550",     /* DKIM */
 526                                    US"550",     /* DATA */
 527 #ifndef DISABLE_PRDR
 528                                    US"550",    /* RCPT PRDR */
 529 #endif
 530                                    US"0",       /* not SMTP; not relevant */
 531                                    US"503",     /* AUTH */
 532                                    US"550",     /* connect */
 533                                    US"458",     /* ETRN */
 534                                    US"550",     /* EXPN */
 535                                    US"550",     /* HELO/EHLO */
 536                                    US"0",       /* MAILAUTH; not relevant */
 537                                    US"0",       /* not SMTP; not relevant */
 538                                    US"0",       /* NOTQUIT; not relevant */
 539                                    US"0",       /* QUIT; not relevant */
 540                                    US"550",     /* STARTTLS */
 541                                    US"252",     /* VRFY */
 542                                    US"0",       /* delivery; not relevant */
 543                                    US"0"        /* unknown; not relevant */
 544                                  };
 545
 546 uschar *add_environment        = NULL;
 547 address_item  *addr_duplicate  = NULL;
 548
 549 address_item address_defaults = {
 550   .next =               NULL,
 551   .parent =             NULL,
 552   .first =              NULL,
 553   .dupof =              NULL,
 554   .start_router =       NULL,
 555   .router =             NULL,
 556   .transport =          NULL,
 557   .host_list =          NULL,
 558   .host_used =          NULL,
 559   .fallback_hosts =     NULL,
 560   .reply =              NULL,
 561   .retries =            NULL,
 562   .address =            NULL,
 563   .unique =             NULL,
 564   .cc_local_part =      NULL,
 565   .lc_local_part =      NULL,
 566   .local_part =         NULL,
 567   .prefix =             NULL,
 568   .suffix =             NULL,
 569   .domain =             NULL,
 570   .address_retry_key =  NULL,
 571   .domain_retry_key =   NULL,
 572   .current_dir =        NULL,
 573   .home_dir =           NULL,
 574   .message =            NULL,
 575   .user_message =       NULL,
 576   .onetime_parent =     NULL,
 577   .pipe_expandn =       NULL,
 578   .return_filename =    NULL,
 579   .self_hostname =      NULL,
 580   .shadow_message =     NULL,
 581 #ifdef SUPPORT_TLS
 582   .cipher =             NULL,
 583   .ourcert =            NULL,
 584   .peercert =           NULL,
 585   .peerdn =             NULL,
 586   .ocsp =               OCSP_NOT_REQ,
 587 #endif
 588 #ifdef EXPERIMENTAL_DSN_INFO
 589   .smtp_greeting =      NULL,
 590   .helo_response =      NULL,
 591 #endif
 592   .authenticator =      NULL,
 593   .auth_id =            NULL,
 594   .auth_sndr =          NULL,
 595   .dsn_orcpt =          NULL,
 596   .dsn_flags =          0,
 597   .dsn_aware =          0,
 598   .uid =                (uid_t)(-1),
 599   .gid =                (gid_t)(-1),
 600   .flags =              { 0 },
 601   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 602   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 603   .mode =               -1,
 604   .more_errno =         0,
 605   .delivery_usec =      0,
 606   .basic_errno =        ERRNO_UNKNOWNERROR,
 607   .child_count =        0,
 608   .return_file =        -1,
 609   .special_action =     SPECIAL_NONE,
 610   .transport_return =   DEFER,
 611   .prop = {                                     /* fields that are propagated to children */
 612     .address_data =     NULL,
 613     .domain_data =      NULL,
 614     .localpart_data =   NULL,
 615     .errors_address =   NULL,
 616     .extra_headers =    NULL,
 617     .remove_headers =   NULL,
 618 #ifdef EXPERIMENTAL_SRS
 619     .srs_sender =       NULL,
 620 #endif
 621     .ignore_error =     FALSE,
 622 #ifdef SUPPORT_I18N
 623     .utf8_msg =         FALSE,
 624     .utf8_downcvt =     FALSE,
 625     .utf8_downcvt_maybe = FALSE
 626 #endif
 627   }
 628 };
 629
 630 uschar *address_file           = NULL;
 631 uschar *address_pipe           = NULL;
 632 tree_node *addresslist_anchor  = NULL;
 633 int     addresslist_count      = 0;
 634 gid_t  *admin_groups           = NULL;
 635
 636 #ifdef EXPERIMENTAL_ARC
 637 struct arc_set *arc_received    = NULL;
 638 int     arc_received_instance   = 0;
 639 int     arc_oldest_pass         = 0;
 640 const uschar *arc_state         = NULL;
 641 const uschar *arc_state_reason  = NULL;
 642 #endif
 643
 644 uschar *authenticated_fail_id  = NULL;
 645 uschar *authenticated_id       = NULL;
 646 uschar *authenticated_sender   = NULL;
 647 auth_instance  *auths          = NULL;
 648 uschar *auth_advertise_hosts   = US"*";
 649 auth_instance auth_defaults    = {
 650     .next =             NULL,
 651     .name =             NULL,
 652     .info =             NULL,
 653     .options_block =    NULL,
 654     .driver_name =      NULL,
 655     .advertise_condition = NULL,
 656     .client_condition = NULL,
 657     .public_name =      NULL,
 658     .set_id =           NULL,
 659     .set_client_id =    NULL,
 660     .mail_auth_condition = NULL,
 661     .server_debug_string = NULL,
 662     .server_condition = NULL,
 663     .client =           FALSE,
 664     .server =           FALSE,
 665     .advertised =       FALSE
 666 };
 667
 668 uschar *auth_defer_msg         = US"reason not recorded";
 669 uschar *auth_defer_user_msg    = US"";
 670 uschar *auth_vars[AUTH_VARS];
 671 int     auto_thaw              = 0;
 672 #ifdef WITH_CONTENT_SCAN
 673 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 674 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 675 #endif
 676
 677 #if BASE_62 == 62
 678 uschar *base62_chars=
 679     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 680 #else
 681 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 682 #endif
 683
 684 uschar *bi_command             = NULL;
 685 uschar *big_buffer             = NULL;
 686 int     big_buffer_size        = BIG_BUFFER_SIZE;
 687 #ifdef EXPERIMENTAL_BRIGHTMAIL
 688 uschar *bmi_alt_location       = NULL;
 689 uschar *bmi_base64_tracker_verdict = NULL;
 690 uschar *bmi_base64_verdict     = NULL;
 691 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 692 int     bmi_deliver            = 1;
 693 int     bmi_run                = 0;
 694 uschar *bmi_verdicts           = NULL;
 695 #endif
 696 int     bsmtp_transaction_linecount = 0;
 697 int     body_8bitmime          = 0;
 698 int     body_linecount         = 0;
 699 int     body_zerocount         = 0;
 700 uschar *bounce_message_file    = NULL;
 701 uschar *bounce_message_text    = NULL;
 702 uschar *bounce_recipient       = NULL;
 703 int     bounce_return_linesize_limit = 998;
 704 int     bounce_return_size_limit = 100*1024;
 705 uschar *bounce_sender_authentication = NULL;
 706
 707 uschar *callout_address        = NULL;
 708 int     callout_cache_domain_positive_expire = 7*24*60*60;
 709 int     callout_cache_domain_negative_expire = 3*60*60;
 710 int     callout_cache_positive_expire = 24*60*60;
 711 int     callout_cache_negative_expire = 2*60*60;
 712 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 713 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 714 int     check_log_inodes       = 100;
 715 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 716 int     check_spool_inodes     = 100;
 717 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 718
 719 uschar *chunking_advertise_hosts = US"*";
 720 unsigned chunking_datasize     = 0;
 721 unsigned chunking_data_left    = 0;
 722 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 723 const pcre *regex_CHUNKING     = NULL;
 724
 725 uschar *client_authenticator   = NULL;
 726 uschar *client_authenticated_id = NULL;
 727 uschar *client_authenticated_sender = NULL;
 728 int     clmacro_count          = 0;
 729 uschar *clmacros[MAX_CLMACROS];
 730 FILE   *config_file            = NULL;
 731 const uschar *config_filename  = NULL;
 732 int     config_lineno          = 0;
 733 #ifdef CONFIGURE_GROUP
 734 gid_t   config_gid             = CONFIGURE_GROUP;
 735 #else
 736 gid_t   config_gid             = 0;
 737 #endif
 738 uschar *config_main_filelist   = US CONFIGURE_FILE
 739                          "\0<-----------Space to patch configure_filename->";
 740 uschar *config_main_filename   = NULL;
 741 uschar *config_main_directory  = NULL;
 742
 743 #ifdef CONFIGURE_OWNER
 744 uid_t   config_uid             = CONFIGURE_OWNER;
 745 #else
 746 uid_t   config_uid             = 0;
 747 #endif
 748
 749 int     connection_max_messages= -1;
 750 uschar *continue_proxy_cipher  = NULL;
 751 uschar *continue_hostname      = NULL;
 752 uschar *continue_host_address  = NULL;
 753 int     continue_sequence      = 1;
 754 uschar *continue_transport     = NULL;
 755
 756 uschar *csa_status             = NULL;
 757 cut_t   cutthrough = {
 758   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 759   .delivery =           FALSE,                          /* when to attempt */
 760   .defer_pass =         FALSE,                          /* on defer: spool locally */
 761   .is_tls =             FALSE,                          /* not a TLS conn yet */
 762   .cctx =               {.sock = -1},                   /* open connection */
 763   .nrcpt =              0,                              /* number of addresses */
 764 };
 765
 766 uschar *daemon_smtp_port       = US"smtp";
 767 int     daemon_startup_retries = 9;
 768 int     daemon_startup_sleep   = 30;
 769
 770 #ifdef EXPERIMENTAL_DCC
 771 uschar *dcc_header             = NULL;
 772 uschar *dcc_result             = NULL;
 773 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 774 uschar *dccifd_options         = US"header";
 775 #endif
 776
 777 int     debug_fd               = -1;
 778 FILE   *debug_file             = NULL;
 779 int     debug_notall[]         = {
 780   Di_memory,
 781   Di_noutf8,
 782   -1
 783 };
 784 bit_table debug_options[]      = { /* must be in alphabetical order and use
 785                                  only the enum values from macro.h */
 786   BIT_TABLE(D, acl),
 787   BIT_TABLE(D, all),
 788   BIT_TABLE(D, auth),
 789   BIT_TABLE(D, deliver),
 790   BIT_TABLE(D, dns),
 791   BIT_TABLE(D, dnsbl),
 792   BIT_TABLE(D, exec),
 793   BIT_TABLE(D, expand),
 794   BIT_TABLE(D, filter),
 795   BIT_TABLE(D, hints_lookup),
 796   BIT_TABLE(D, host_lookup),
 797   BIT_TABLE(D, ident),
 798   BIT_TABLE(D, interface),
 799   BIT_TABLE(D, lists),
 800   BIT_TABLE(D, load),
 801   BIT_TABLE(D, local_scan),
 802   BIT_TABLE(D, lookup),
 803   BIT_TABLE(D, memory),
 804   BIT_TABLE(D, noutf8),
 805   BIT_TABLE(D, pid),
 806   BIT_TABLE(D, process_info),
 807   BIT_TABLE(D, queue_run),
 808   BIT_TABLE(D, receive),
 809   BIT_TABLE(D, resolver),
 810   BIT_TABLE(D, retry),
 811   BIT_TABLE(D, rewrite),
 812   BIT_TABLE(D, route),
 813   BIT_TABLE(D, timestamp),
 814   BIT_TABLE(D, tls),
 815   BIT_TABLE(D, transport),
 816   BIT_TABLE(D, uid),
 817   BIT_TABLE(D, verify),
 818 };
 819 int     debug_options_count    = nelem(debug_options);
 820
 821 unsigned int debug_selector    = 0;
 822
 823 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 824 uschar *delay_warning_condition=
 825   US"${if or {"
 826             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 827             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 828             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 829             "} {no}{yes}}";
 830 uschar *deliver_address_data   = NULL;
 831 int     deliver_datafile       = -1;
 832 const uschar *deliver_domain   = NULL;
 833 uschar *deliver_domain_data    = NULL;
 834 const uschar *deliver_domain_orig = NULL;
 835 const uschar *deliver_domain_parent = NULL;
 836 time_t  deliver_frozen_at      = 0;
 837 uschar *deliver_home           = NULL;
 838 const uschar *deliver_host     = NULL;
 839 const uschar *deliver_host_address = NULL;
 840 int     deliver_host_port      = 0;
 841 uschar *deliver_in_buffer      = NULL;
 842 ino_t   deliver_inode          = 0;
 843 uschar *deliver_localpart      = NULL;
 844 uschar *deliver_localpart_data = NULL;
 845 uschar *deliver_localpart_orig = NULL;
 846 uschar *deliver_localpart_parent = NULL;
 847 uschar *deliver_localpart_prefix = NULL;
 848 uschar *deliver_localpart_suffix = NULL;
 849 uschar *deliver_out_buffer     = NULL;
 850 int     deliver_queue_load_max = -1;
 851 address_item  *deliver_recipients = NULL;
 852 uschar *deliver_selectstring   = NULL;
 853 uschar *deliver_selectstring_sender = NULL;
 854
 855 #ifndef DISABLE_DKIM
 856 unsigned dkim_collect_input      = 0;
 857 uschar *dkim_cur_signer          = NULL;
 858 int     dkim_key_length          = 0;
 859 void   *dkim_signatures          = NULL;
 860 uschar *dkim_signers             = NULL;
 861 uschar *dkim_signing_domain      = NULL;
 862 uschar *dkim_signing_selector    = NULL;
 863 uschar *dkim_verify_overall      = NULL;
 864 uschar *dkim_verify_signers      = US"$dkim_signers";
 865 uschar *dkim_verify_status       = NULL;
 866 uschar *dkim_verify_reason       = NULL;
 867 #endif
 868 #ifdef EXPERIMENTAL_DMARC
 869 uschar *dmarc_domain_policy     = NULL;
 870 uschar *dmarc_forensic_sender   = NULL;
 871 uschar *dmarc_history_file      = NULL;
 872 uschar *dmarc_status            = NULL;
 873 uschar *dmarc_status_text       = NULL;
 874 uschar *dmarc_tld_file          = NULL;
 875 uschar *dmarc_used_domain       = NULL;
 876 #endif
 877
 878 uschar *dns_again_means_nonexist = NULL;
 879 int     dns_csa_search_limit   = 5;
 880 int     dns_cname_loops        = 1;
 881 #ifdef SUPPORT_DANE
 882 int     dns_dane_ok            = -1;
 883 #endif
 884 uschar *dns_ipv4_lookup        = NULL;
 885 int     dns_retrans            = 0;
 886 int     dns_retry              = 0;
 887 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 888 uschar *dns_trust_aa           = NULL;
 889 int     dns_use_edns0          = -1; /* <0 = not coerced */
 890 uschar *dnslist_domain         = NULL;
 891 uschar *dnslist_matched        = NULL;
 892 uschar *dnslist_text           = NULL;
 893 uschar *dnslist_value          = NULL;
 894 tree_node *domainlist_anchor   = NULL;
 895 int     domainlist_count       = 0;
 896 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 897
 898 int     errno_quota            = ERRNO_QUOTA;
 899 uschar *errors_copy            = NULL;
 900 int     error_handling         = ERRORS_SENDER;
 901 uschar *errors_reply_to        = NULL;
 902 int     errors_sender_rc       = EXIT_FAILURE;
 903 #ifndef DISABLE_EVENT
 904 uschar *event_action             = NULL;        /* expansion for delivery events */
 905 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 906 int     event_defer_errno        = 0;
 907 const uschar *event_name         = NULL;        /* event name variable */
 908 #endif
 909
 910
 911 gid_t   exim_gid               = EXIM_GID;
 912 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 913                         "\0<---------------Space to patch exim_path->";
 914 uid_t   exim_uid               = EXIM_UID;
 915 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 916 int     expand_forbid          = 0;
 917 int     expand_nlength[EXPAND_MAXN+1];
 918 int     expand_nmax            = -1;
 919 uschar *expand_nstring[EXPAND_MAXN+1];
 920 uschar *expand_string_message;
 921 uschar *extra_local_interfaces = NULL;
 922
 923 int     fake_response          = OK;
 924 uschar *fake_response_text     = US"Your message has been rejected but is "
 925                                    "being kept for evaluation.\nIf it was a "
 926                                    "legitimate message, it may still be "
 927                                    "delivered to the target recipient(s).";
 928 int     filter_n[FILTER_VARIABLE_COUNT];
 929 int     filter_sn[FILTER_VARIABLE_COUNT];
 930 int     filter_test            = FTEST_NONE;
 931 uschar *filter_test_sfile      = NULL;
 932 uschar *filter_test_ufile      = NULL;
 933 uschar *filter_thisaddress     = NULL;
 934 int     finduser_retries       = 0;
 935 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 936 uschar *freeze_tell            = NULL;
 937 uschar *freeze_tell_config     = NULL;
 938 uschar *fudged_queue_times     = US"";
 939
 940 uschar *gecos_name             = NULL;
 941 uschar *gecos_pattern          = NULL;
 942 rewrite_rule  *global_rewrite_rules = NULL;
 943
 944 volatile sig_atomic_t had_command_timeout = 0;
 945 volatile sig_atomic_t had_command_sigterm = 0;
 946 volatile sig_atomic_t had_data_timeout    = 0;
 947 volatile sig_atomic_t had_data_sigint     = 0;
 948 uschar *headers_charset        = US HEADERS_CHARSET;
 949 int     header_insert_maxlen   = 64 * 1024;
 950 header_line  *header_last      = NULL;
 951 header_line  *header_list      = NULL;
 952 int     header_maxsize         = HEADER_MAXSIZE;
 953 int     header_line_maxsize    = 0;
 954
 955 header_name header_names[] = {
 956   /* name               len     allow_resent    htype */
 957   { US"bcc",            3,      TRUE,           htype_bcc },
 958   { US"cc",             2,      TRUE,           htype_cc },
 959   { US"date",           4,      TRUE,           htype_date },
 960   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 961   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 962   { US"from",           4,      TRUE,           htype_from },
 963   { US"message-id",    10,      TRUE,           htype_id },
 964   { US"received",       8,      FALSE,          htype_received },
 965   { US"reply-to",       8,      FALSE,          htype_reply_to },
 966   { US"return-path",   11,      FALSE,          htype_return_path },
 967   { US"sender",         6,      TRUE,           htype_sender },
 968   { US"subject",        7,      FALSE,          htype_subject },
 969   { US"to",             2,      TRUE,           htype_to }
 970 };
 971
 972 int header_names_size          = nelem(header_names);
 973
 974 uschar *helo_accept_junk_hosts = NULL;
 975 uschar *helo_allow_chars       = US"";
 976 uschar *helo_lookup_domains    = US"@ : @[]";
 977 uschar *helo_try_verify_hosts  = NULL;
 978 uschar *helo_verify_hosts      = NULL;
 979 const uschar *hex_digits       = CUS"0123456789abcdef";
 980 uschar *hold_domains           = NULL;
 981 uschar *host_data              = NULL;
 982 uschar *host_lookup            = NULL;
 983 uschar *host_lookup_order      = US"bydns:byaddr";
 984 uschar *host_lookup_msg        = US"";
 985 int     host_number            = 0;
 986 uschar *host_number_string     = NULL;
 987 uschar *host_reject_connection = NULL;
 988 tree_node *hostlist_anchor     = NULL;
 989 int     hostlist_count         = 0;
 990 uschar *hosts_treat_as_local   = NULL;
 991 uschar *hosts_connection_nolog = NULL;
 992
 993 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 994 uschar *ignore_fromline_hosts  = NULL;
 995 int     inetd_wait_timeout     = -1;
 996 uschar *initial_cwd            = NULL;
 997 uschar *interface_address      = NULL;
 998 int     interface_port         = -1;
 999 uschar *iterate_item           = NULL;
1000
1001 int     journal_fd             = -1;
1002
1003 uschar *keep_environment       = NULL;
1004
1005 int     keep_malformed         = 4*24*60*60;    /* 4 days */
1006
1007 uschar *eldap_dn               = NULL;
1008 uschar *lazy_init              = NULL;
1009 int     load_average           = -2;
1010 uschar *local_from_prefix      = NULL;
1011 uschar *local_from_suffix      = NULL;
1012
1013 #if HAVE_IPV6
1014 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
1015 #else
1016 uschar *local_interfaces       = US"0.0.0.0";
1017 #endif
1018
1019 #ifdef HAVE_LOCAL_SCAN
1020 uschar *local_scan_data        = NULL;
1021 int     local_scan_timeout     = 5*60;
1022 #endif
1023 gid_t   local_user_gid         = (gid_t)(-1);
1024 uid_t   local_user_uid         = (uid_t)(-1);
1025
1026 tree_node *localpartlist_anchor= NULL;
1027 int     localpartlist_count    = 0;
1028 uschar *log_buffer             = NULL;
1029
1030 int     log_default[]          = { /* for initializing log_selector */
1031   Li_acl_warn_skipped,
1032   Li_connection_reject,
1033   Li_delay_delivery,
1034   Li_dkim,
1035   Li_dnslist_defer,
1036   Li_etrn,
1037   Li_host_lookup_failed,
1038   Li_lost_incoming_connection,
1039   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1040   Li_queue_run,
1041   Li_rejected_header,
1042   Li_retry_defer,
1043   Li_sender_verify_fail,
1044   Li_size_reject,
1045   Li_skip_delivery,
1046   Li_smtp_confirmation,
1047   Li_tls_certificate_verified,
1048   Li_tls_cipher,
1049   -1
1050 };
1051
1052 uschar *log_file_path          = US LOG_FILE_PATH
1053                            "\0<--------------Space to patch log_file_path->";
1054
1055 int     log_notall[]           = {
1056   -1
1057 };
1058 bit_table log_options[]        = { /* must be in alphabetical order */
1059   BIT_TABLE(L, 8bitmime),
1060   BIT_TABLE(L, acl_warn_skipped),
1061   BIT_TABLE(L, address_rewrite),
1062   BIT_TABLE(L, all),
1063   BIT_TABLE(L, all_parents),
1064   BIT_TABLE(L, arguments),
1065   BIT_TABLE(L, connection_reject),
1066   BIT_TABLE(L, delay_delivery),
1067   BIT_TABLE(L, deliver_time),
1068   BIT_TABLE(L, delivery_size),
1069 #ifndef DISABLE_DKIM
1070   BIT_TABLE(L, dkim),
1071   BIT_TABLE(L, dkim_verbose),
1072 #endif
1073   BIT_TABLE(L, dnslist_defer),
1074   BIT_TABLE(L, dnssec),
1075   BIT_TABLE(L, etrn),
1076   BIT_TABLE(L, host_lookup_failed),
1077   BIT_TABLE(L, ident_timeout),
1078   BIT_TABLE(L, incoming_interface),
1079   BIT_TABLE(L, incoming_port),
1080   BIT_TABLE(L, lost_incoming_connection),
1081   BIT_TABLE(L, millisec),
1082   BIT_TABLE(L, outgoing_interface),
1083   BIT_TABLE(L, outgoing_port),
1084   BIT_TABLE(L, pid),
1085   BIT_TABLE(L, pipelining),
1086 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1087   BIT_TABLE(L, proxy),
1088 #endif
1089   BIT_TABLE(L, queue_run),
1090   BIT_TABLE(L, queue_time),
1091   BIT_TABLE(L, queue_time_overall),
1092   BIT_TABLE(L, receive_time),
1093   BIT_TABLE(L, received_recipients),
1094   BIT_TABLE(L, received_sender),
1095   BIT_TABLE(L, rejected_header),
1096   { US"rejected_headers", Li_rejected_header },
1097   BIT_TABLE(L, retry_defer),
1098   BIT_TABLE(L, return_path_on_delivery),
1099   BIT_TABLE(L, sender_on_delivery),
1100   BIT_TABLE(L, sender_verify_fail),
1101   BIT_TABLE(L, size_reject),
1102   BIT_TABLE(L, skip_delivery),
1103   BIT_TABLE(L, smtp_confirmation),
1104   BIT_TABLE(L, smtp_connection),
1105   BIT_TABLE(L, smtp_incomplete_transaction),
1106   BIT_TABLE(L, smtp_mailauth),
1107   BIT_TABLE(L, smtp_no_mail),
1108   BIT_TABLE(L, smtp_protocol_error),
1109   BIT_TABLE(L, smtp_syntax_error),
1110   BIT_TABLE(L, subject),
1111   BIT_TABLE(L, tls_certificate_verified),
1112   BIT_TABLE(L, tls_cipher),
1113   BIT_TABLE(L, tls_peerdn),
1114   BIT_TABLE(L, tls_sni),
1115   BIT_TABLE(L, unknown_in_list),
1116 };
1117 int     log_options_count      = nelem(log_options);
1118
1119 int     log_reject_target      = 0;
1120 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1121 uschar *log_selector_string    = NULL;
1122 FILE   *log_stderr             = NULL;
1123 uschar *login_sender_address   = NULL;
1124 uschar *lookup_dnssec_authenticated = NULL;
1125 int     lookup_open_max        = 25;
1126 uschar *lookup_value           = NULL;
1127
1128 macro_item *macros_user        = NULL;
1129 uschar *mailstore_basename     = NULL;
1130 #ifdef WITH_CONTENT_SCAN
1131 uschar *malware_name           = NULL;  /* Virus Name */
1132 #endif
1133 int     max_received_linelength= 0;
1134 int     max_username_length    = 0;
1135 int     message_age            = 0;
1136 uschar *message_body           = NULL;
1137 uschar *message_body_end       = NULL;
1138 int     message_body_size      = 0;
1139 int     message_body_visible   = 500;
1140 int     message_ended          = END_NOTSTARTED;
1141 uschar *message_headers        = NULL;
1142 uschar *message_id;
1143 uschar *message_id_domain      = NULL;
1144 uschar *message_id_text        = NULL;
1145 struct timeval message_id_tv   = { 0, 0 };
1146 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1147 uschar *message_id_external;
1148 int     message_linecount      = 0;
1149 int     message_size           = 0;
1150 uschar *message_size_limit     = US"50M";
1151 #ifdef SUPPORT_I18N
1152 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1153 #endif
1154 uschar  message_subdir[2]      = { 0, 0 };
1155 uschar *message_reference      = NULL;
1156
1157 /* MIME ACL expandables */
1158 #ifdef WITH_CONTENT_SCAN
1159 int     mime_anomaly_level     = 0;
1160 const uschar *mime_anomaly_text      = NULL;
1161 uschar *mime_boundary          = NULL;
1162 uschar *mime_charset           = NULL;
1163 uschar *mime_content_description = NULL;
1164 uschar *mime_content_disposition = NULL;
1165 uschar *mime_content_id        = NULL;
1166 unsigned int mime_content_size = 0;
1167 uschar *mime_content_transfer_encoding = NULL;
1168 uschar *mime_content_type      = NULL;
1169 uschar *mime_decoded_filename  = NULL;
1170 uschar *mime_filename          = NULL;
1171 int     mime_is_multipart      = 0;
1172 int     mime_is_coverletter    = 0;
1173 int     mime_is_rfc822         = 0;
1174 int     mime_part_count        = -1;
1175 #endif
1176
1177 uid_t  *never_users            = NULL;
1178
1179 const int on                   = 1;     /* for setsockopt */
1180 const int off                  = 0;
1181
1182 uid_t   original_euid;
1183 gid_t   originator_gid;
1184 uschar *originator_login       = NULL;
1185 uschar *originator_name        = NULL;
1186 uid_t   originator_uid;
1187 uschar *override_local_interfaces = NULL;
1188 uschar *override_pid_file_path = NULL;
1189
1190 uschar *percent_hack_domains   = NULL;
1191 uschar *pid_file_path          = US PID_FILE_PATH
1192                            "\0<--------------Space to patch pid_file_path->";
1193 #ifdef EXPERIMENTAL_PIPE_CONNECT
1194 uschar *pipe_connect_advertise_hosts = US"*";
1195 #endif
1196 uschar *pipelining_advertise_hosts = US"*";
1197 uschar *primary_hostname       = NULL;
1198 uschar  process_info[PROCESS_INFO_SIZE];
1199 int     process_info_len       = 0;
1200 uschar *process_log_path       = NULL;
1201
1202 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1203 uschar *hosts_proxy            = NULL;
1204 uschar *proxy_external_address = NULL;
1205 int     proxy_external_port    = 0;
1206 uschar *proxy_local_address    = NULL;
1207 int     proxy_local_port       = 0;
1208 #endif
1209
1210 uschar *prvscheck_address      = NULL;
1211 uschar *prvscheck_keynum       = NULL;
1212 uschar *prvscheck_result       = NULL;
1213
1214
1215 const uschar *qualify_domain_recipient = NULL;
1216 uschar *qualify_domain_sender  = NULL;
1217 uschar *queue_domains          = NULL;
1218 int     queue_interval         = -1;
1219 uschar *queue_name             = US"";
1220 uschar *queue_only_file        = NULL;
1221 int     queue_only_load        = -1;
1222 uschar *queue_run_max          = US"5";
1223 pid_t   queue_run_pid          = (pid_t)0;
1224 int     queue_run_pipe         = -1;
1225 uschar *queue_smtp_domains     = NULL;
1226
1227 uint32_t random_seed           = 0;
1228 tree_node *ratelimiters_cmd    = NULL;
1229 tree_node *ratelimiters_conn   = NULL;
1230 tree_node *ratelimiters_mail   = NULL;
1231 uschar *raw_active_hostname    = NULL;
1232 uschar *raw_sender             = NULL;
1233 uschar **raw_recipients        = NULL;
1234 int     raw_recipients_count   = 0;
1235
1236 int     rcpt_count             = 0;
1237 int     rcpt_fail_count        = 0;
1238 int     rcpt_defer_count       = 0;
1239 gid_t   real_gid;
1240 uid_t   real_uid;
1241 int     receive_linecount      = 0;
1242 int     receive_messagecount   = 0;
1243 int     receive_timeout        = 0;
1244 int     received_count         = 0;
1245 uschar *received_for           = NULL;
1246
1247 /*  This is the default text for Received headers generated by Exim. The
1248 date  will be automatically added on the end. */
1249
1250 uschar *received_header_text   = US
1251      "Received: "
1252      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1253      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1254      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1255      "by $primary_hostname "
1256      "${if def:received_protocol {with $received_protocol}} "
1257      #ifdef SUPPORT_TLS
1258      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1259      #endif
1260      "(Exim $version_number)\n\t"
1261      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1262      "id $message_exim_id"
1263      "${if def:received_for {\n\tfor $received_for}}"
1264      "\0<---------------Space to patch received_header_text->";
1265
1266 int     received_headers_max   = 30;
1267 uschar *received_protocol      = NULL;
1268 struct timeval received_time   = { 0, 0 };
1269 struct timeval received_time_taken = { 0, 0 };
1270 uschar *recipient_data         = NULL;
1271 uschar *recipient_unqualified_hosts = NULL;
1272 uschar *recipient_verify_failure = NULL;
1273 int     recipients_count       = 0;
1274 recipient_item  *recipients_list = NULL;
1275 int     recipients_list_max    = 0;
1276 int     recipients_max         = 0;
1277 const pcre *regex_AUTH         = NULL;
1278 const pcre *regex_check_dns_names = NULL;
1279 const pcre *regex_From         = NULL;
1280 const pcre *regex_IGNOREQUOTA  = NULL;
1281 const pcre *regex_PIPELINING   = NULL;
1282 const pcre *regex_SIZE         = NULL;
1283 #ifdef EXPERIMENTAL_PIPE_CONNECT
1284 const pcre *regex_EARLY_PIPE   = NULL;
1285 #endif
1286 const pcre *regex_ismsgid      = NULL;
1287 const pcre *regex_smtp_code    = NULL;
1288 uschar *regex_vars[REGEX_VARS];
1289 #ifdef WHITELIST_D_MACROS
1290 const pcre *regex_whitelisted_macro = NULL;
1291 #endif
1292 #ifdef WITH_CONTENT_SCAN
1293 uschar *regex_match_string     = NULL;
1294 #endif
1295 int     remote_delivery_count  = 0;
1296 int     remote_max_parallel    = 2;
1297 uschar *remote_sort_domains    = NULL;
1298 int     retry_data_expire      = 7*24*60*60;
1299 int     retry_interval_max     = 24*60*60;
1300 int     retry_maximum_timeout  = 0;        /* set from retry config */
1301 retry_config  *retries         = NULL;
1302 uschar *return_path            = NULL;
1303 int     rewrite_existflags     = 0;
1304 uschar *rfc1413_hosts          = US"@[]";
1305 int     rfc1413_query_timeout  = 0;
1306 uid_t   root_gid               = ROOT_GID;
1307 uid_t   root_uid               = ROOT_UID;
1308
1309 router_instance  *routers  = NULL;
1310 router_instance  router_defaults = {
1311     .next =                     NULL,
1312     .name =                     NULL,
1313     .info =                     NULL,
1314     .options_block =            NULL,
1315     .driver_name =              NULL,
1316
1317     .address_data =             NULL,
1318 #ifdef EXPERIMENTAL_BRIGHTMAIL
1319     .bmi_rule =                 NULL,
1320 #endif
1321     .cannot_route_message =     NULL,
1322     .condition =                NULL,
1323     .current_directory =        NULL,
1324     .debug_string =             NULL,
1325     .domains =                  NULL,
1326     .errors_to =                NULL,
1327     .expand_gid =               NULL,
1328     .expand_uid =               NULL,
1329     .expand_more =              NULL,
1330     .expand_unseen =            NULL,
1331     .extra_headers =            NULL,
1332     .fallback_hosts =           NULL,
1333     .home_directory =           NULL,
1334     .ignore_target_hosts =      NULL,
1335     .local_parts =              NULL,
1336     .pass_router_name =         NULL,
1337     .prefix =                   NULL,
1338     .redirect_router_name =     NULL,
1339     .remove_headers =           NULL,
1340     .require_files =            NULL,
1341     .router_home_directory =    NULL,
1342     .self =                     US"freeze",
1343     .senders =                  NULL,
1344     .suffix =                   NULL,
1345     .translate_ip_address =     NULL,
1346     .transport_name =           NULL,
1347
1348     .address_test =             TRUE,
1349 #ifdef EXPERIMENTAL_BRIGHTMAIL
1350     .bmi_deliver_alternate =    FALSE,
1351     .bmi_deliver_default =      FALSE,
1352     .bmi_dont_deliver =         FALSE,
1353 #endif
1354     .expn =                     TRUE,
1355     .caseful_local_part =       FALSE,
1356     .check_local_user =         FALSE,
1357     .disable_logging =          FALSE,
1358     .fail_verify_recipient =    FALSE,
1359     .fail_verify_sender =       FALSE,
1360     .gid_set =                  FALSE,
1361     .initgroups =               FALSE,
1362     .log_as_local =             TRUE_UNSET,
1363     .more =                     TRUE,
1364     .pass_on_timeout =          FALSE,
1365     .prefix_optional =          FALSE,
1366     .repeat_use =               TRUE,
1367     .retry_use_local_part =     TRUE_UNSET,
1368     .same_domain_copy_routing = FALSE,
1369     .self_rewrite =             FALSE,
1370     .suffix_optional =          FALSE,
1371     .verify_only =              FALSE,
1372     .verify_recipient =         TRUE,
1373     .verify_sender =            TRUE,
1374     .uid_set =                  FALSE,
1375     .unseen =                   FALSE,
1376     .dsn_lasthop =              FALSE,
1377
1378     .self_code =                self_freeze,
1379     .uid =                      (uid_t)(-1),
1380     .gid =                      (gid_t)(-1),
1381
1382     .fallback_hostlist =        NULL,
1383     .transport =                NULL,
1384     .pass_router =              NULL,
1385     .redirect_router =          NULL,
1386
1387     .dnssec =                   { NULL, NULL },            /* dnssec_domains {require,request} */
1388 };
1389
1390 uschar *router_name            = NULL;
1391
1392 ip_address_item *running_interfaces = NULL;
1393
1394 /* This is a weird one. The following string gets patched in the binary by the
1395 script that sets up a copy of Exim for running in the test harness. It seems
1396 that compilers are now clever, and share constant strings if they can.
1397 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1398 make use of the end of this string in order to save space. So the patching then
1399 wrecks this. We defeat this optimization by adding some additional characters
1400 onto the end of the string. */
1401
1402 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1403
1404 int     runrc                  = 0;
1405
1406 uschar *search_error_message   = NULL;
1407 uschar *self_hostname          = NULL;
1408 uschar *sender_address         = NULL;
1409 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1410 uschar *sender_address_data    = NULL;
1411 uschar *sender_address_unrewritten = NULL;
1412 uschar *sender_data            = NULL;
1413 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1414 uschar *sender_fullhost        = NULL;
1415 uschar *sender_helo_name       = NULL;
1416 uschar **sender_host_aliases   = &no_aliases;
1417 uschar *sender_host_address    = NULL;
1418 uschar *sender_host_authenticated = NULL;
1419 uschar *sender_host_auth_pubname  = NULL;
1420 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1421 uschar *sender_host_name       = NULL;
1422 int     sender_host_port       = 0;
1423 uschar *sender_ident           = NULL;
1424 uschar *sender_rate            = NULL;
1425 uschar *sender_rate_limit      = NULL;
1426 uschar *sender_rate_period     = NULL;
1427 uschar *sender_rcvhost         = NULL;
1428 uschar *sender_unqualified_hosts = NULL;
1429 uschar *sender_verify_failure = NULL;
1430 address_item *sender_verified_list  = NULL;
1431 address_item *sender_verified_failed = NULL;
1432 int     sender_verified_rc     = -1;
1433 uschar *sending_ip_address     = NULL;
1434 int     sending_port           = -1;
1435 SIGNAL_BOOL sigalrm_seen       = FALSE;
1436 const uschar *sigalarm_setter  = NULL;
1437 uschar **sighup_argv           = NULL;
1438 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1439 int     smtp_accept_count      = 0;
1440 int     smtp_accept_max        = 20;
1441 int     smtp_accept_max_nonmail= 10;
1442 uschar *smtp_accept_max_nonmail_hosts = US"*";
1443 int     smtp_accept_max_per_connection = 1000;
1444 uschar *smtp_accept_max_per_host = NULL;
1445 int     smtp_accept_queue      = 0;
1446 int     smtp_accept_queue_per_connection = 10;
1447 int     smtp_accept_reserve    = 0;
1448 uschar *smtp_active_hostname   = NULL;
1449 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1450                              "Exim $version_number $tod_full"
1451                              "\0<---------------Space to patch smtp_banner->";
1452 int     smtp_ch_index          = 0;
1453 uschar *smtp_cmd_argument      = NULL;
1454 uschar *smtp_cmd_buffer        = NULL;
1455 struct timeval smtp_connection_start  = {0,0};
1456 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1457 int     smtp_connect_backlog   = 20;
1458 double  smtp_delay_mail        = 0.0;
1459 double  smtp_delay_rcpt        = 0.0;
1460 FILE   *smtp_in                = NULL;
1461 int     smtp_load_reserve      = -1;
1462 int     smtp_mailcmd_count     = 0;
1463 FILE   *smtp_out               = NULL;
1464 uschar *smtp_etrn_command      = NULL;
1465 int     smtp_max_synprot_errors= 3;
1466 int     smtp_max_unknown_commands = 3;
1467 uschar *smtp_notquit_reason    = NULL;
1468 uschar *smtp_ratelimit_hosts   = NULL;
1469 uschar *smtp_ratelimit_mail    = NULL;
1470 uschar *smtp_ratelimit_rcpt    = NULL;
1471 uschar *smtp_read_error        = US"";
1472 int     smtp_receive_timeout   = 5*60;
1473 uschar *smtp_receive_timeout_s = NULL;
1474 uschar *smtp_reserve_hosts     = NULL;
1475 int     smtp_rlm_base          = 0;
1476 double  smtp_rlm_factor        = 0.0;
1477 int     smtp_rlm_limit         = 0;
1478 int     smtp_rlm_threshold     = INT_MAX;
1479 int     smtp_rlr_base          = 0;
1480 double  smtp_rlr_factor        = 0.0;
1481 int     smtp_rlr_limit         = 0;
1482 int     smtp_rlr_threshold     = INT_MAX;
1483 unsigned smtp_peer_options     = 0;
1484 unsigned smtp_peer_options_wrap= 0;
1485 #ifdef SUPPORT_I18N
1486 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1487 #endif
1488
1489 #ifdef WITH_CONTENT_SCAN
1490 uschar *spamd_address          = US"127.0.0.1 783";
1491 uschar *spam_bar               = NULL;
1492 uschar *spam_report            = NULL;
1493 uschar *spam_action            = NULL;
1494 uschar *spam_score             = NULL;
1495 uschar *spam_score_int         = NULL;
1496 #endif
1497 #ifdef SUPPORT_SPF
1498 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1499 uschar *spf_header_comment     = NULL;
1500 uschar *spf_received           = NULL;
1501 uschar *spf_result             = NULL;
1502 uschar *spf_smtp_comment       = NULL;
1503 #endif
1504
1505 FILE   *spool_data_file        = NULL;
1506 uschar *spool_directory        = US SPOOL_DIRECTORY
1507                            "\0<--------------Space to patch spool_directory->";
1508 #ifdef EXPERIMENTAL_SRS
1509 uschar *srs_config             = NULL;
1510 uschar *srs_db_address         = NULL;
1511 uschar *srs_db_key             = NULL;
1512 int     srs_hashlength         = 6;
1513 int     srs_hashmin            = -1;
1514 int     srs_maxage             = 31;
1515 uschar *srs_orig_recipient     = NULL;
1516 uschar *srs_orig_sender        = NULL;
1517 uschar *srs_recipient          = NULL;
1518 uschar *srs_secrets            = NULL;
1519 uschar *srs_status             = NULL;
1520 #endif
1521 int     string_datestamp_offset= -1;
1522 int     string_datestamp_length= 0;
1523 int     string_datestamp_type  = -1;
1524 uschar *submission_domain      = NULL;
1525 uschar *submission_name        = NULL;
1526 int     syslog_facility        = LOG_MAIL;
1527 uschar *syslog_processname     = US"exim";
1528 uschar *system_filter          = NULL;
1529
1530 uschar *system_filter_directory_transport = NULL;
1531 uschar *system_filter_file_transport = NULL;
1532 uschar *system_filter_pipe_transport = NULL;
1533 uschar *system_filter_reply_transport = NULL;
1534
1535 gid_t   system_filter_gid      = 0;
1536 uid_t   system_filter_uid      = (uid_t)-1;
1537
1538 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1539 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1540 #ifdef USE_TCP_WRAPPERS
1541 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1542 #endif
1543 int     test_harness_load_avg  = 0;
1544 int     thismessage_size_limit = 0;
1545 int     timeout_frozen_after   = 0;
1546
1547 transport_instance  *transports = NULL;
1548
1549 transport_instance  transport_defaults = {
1550     .next =                     NULL,
1551     .name =                     NULL,
1552     .info =                     NULL,
1553     .options_block =            NULL,
1554     .driver_name =              NULL,
1555     .setup =                    NULL,
1556     .batch_max =                1,
1557     .batch_id =                 NULL,
1558     .home_dir =                 NULL,
1559     .current_dir =              NULL,
1560     .expand_multi_domain =      NULL,
1561     .multi_domain =             TRUE,
1562     .overrides_hosts =          FALSE,
1563     .max_addresses =            100,
1564     .connection_max_messages =  500,
1565     .deliver_as_creator =       FALSE,
1566     .disable_logging =          FALSE,
1567     .initgroups =               FALSE,
1568     .uid_set =                  FALSE,
1569     .gid_set =                  FALSE,
1570     .uid =                      (uid_t)(-1),
1571     .gid =                      (gid_t)(-1),
1572     .expand_uid =               NULL,
1573     .expand_gid =               NULL,
1574     .warn_message =             NULL,
1575     .shadow =                   NULL,
1576     .shadow_condition =         NULL,
1577     .filter_command =           NULL,
1578     .add_headers =              NULL,
1579     .remove_headers =           NULL,
1580     .return_path =              NULL,
1581     .debug_string =             NULL,
1582     .max_parallel =             NULL,
1583     .message_size_limit =       NULL,
1584     .headers_rewrite =          NULL,
1585     .rewrite_rules =            NULL,
1586     .rewrite_existflags =       0,
1587     .filter_timeout =           300,
1588     .body_only =                FALSE,
1589     .delivery_date_add =        FALSE,
1590     .envelope_to_add =          FALSE,
1591     .headers_only =             FALSE,
1592     .rcpt_include_affixes =     FALSE,
1593     .return_path_add =          FALSE,
1594     .return_output =            FALSE,
1595     .return_fail_output =       FALSE,
1596     .log_output =               FALSE,
1597     .log_fail_output =          FALSE,
1598     .log_defer_output =         FALSE,
1599     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1600                                                  1 nor 0 so can detect unset */
1601 #ifndef DISABLE_EVENT
1602    .event_action =              NULL
1603 #endif
1604 };
1605
1606 int     transport_count;
1607 uschar *transport_name          = NULL;
1608 int     transport_newlines;
1609 const uschar **transport_filter_argv  = NULL;
1610 int     transport_filter_timeout;
1611 int     transport_write_timeout= 0;
1612
1613 tree_node  *tree_dns_fails     = NULL;
1614 tree_node  *tree_duplicates    = NULL;
1615 tree_node  *tree_nonrecipients = NULL;
1616 tree_node  *tree_unusable      = NULL;
1617
1618 gid_t  *trusted_groups         = NULL;
1619 uid_t  *trusted_users          = NULL;
1620 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1621
1622 uschar *unknown_login          = NULL;
1623 uschar *unknown_username       = NULL;
1624 uschar *untrusted_set_sender   = NULL;
1625
1626 /*  A regex for matching a "From_" line in an incoming message, in the form
1627
1628     From ph10 Fri Jan  5 12:35 GMT 1996
1629
1630 which  the "mail" commands send to the MTA (undocumented, of course), or in
1631 the  form
1632
1633     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1634
1635 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1636 Because  of variations in time formats, just match up to the minutes. That
1637 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1638 so  just require one digit for hours and minutes. The weekday is also absent
1639 in  some forms. */
1640
1641 uschar *uucp_from_pattern      = US
1642    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1643    "(?:"                                          /* Non-extracting bracket */
1644    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1645    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1646    ")"                                            /* End alternation */
1647    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1648
1649 uschar *uucp_from_sender       = US"$1";
1650
1651 uschar *verify_mode            = NULL;
1652 uschar *version_copyright      =
1653  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1654    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1655 uschar *version_date           = US"?";
1656 uschar *version_cnumber        = US"????";
1657 uschar *version_string         = US"?";
1658
1659 uschar *warn_message_file      = NULL;
1660 int     warning_count          = 0;
1661 uschar *warnmsg_delay          = NULL;
1662 uschar *warnmsg_recipients     = NULL;
1663
1664
1665 /*  End of globals.c */