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  /* all other elements zero */
 107 };
 108 tls_support tls_out = {
 109  .active =              {.sock = -1},
 110  /* all other elements zero */
 111 };
 112
 113 uschar *dsn_envid              = NULL;
 114 int     dsn_ret                = 0;
 115 const pcre  *regex_DSN         = NULL;
 116 uschar *dsn_advertise_hosts    = NULL;
 117
 118 #ifndef DISABLE_TLS
 119 BOOL    gnutls_compat_mode     = FALSE;
 120 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 121 uschar *openssl_options        = NULL;
 122 const pcre *regex_STARTTLS     = NULL;
 123 uschar *tls_advertise_hosts    = US"*";
 124 uschar *tls_certificate        = NULL;
 125 uschar *tls_crl                = NULL;
 126 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 127 that's the interop problem which has been observed: GnuTLS suggesting a higher
 128 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 129 int     tls_dh_max_bits        = 2236;
 130 uschar *tls_dhparam            = NULL;
 131 uschar *tls_eccurve            = US"auto";
 132 # ifndef DISABLE_OCSP
 133 uschar *tls_ocsp_file          = NULL;
 134 # endif
 135 uschar *tls_privatekey         = NULL;
 136 BOOL    tls_remember_esmtp     = FALSE;
 137 uschar *tls_require_ciphers    = NULL;
 138 # ifdef EXPERIMENTAL_TLS_RESUME
 139 uschar *tls_resumption_hosts   = NULL;
 140 # endif
 141 uschar *tls_try_verify_hosts   = NULL;
 142 uschar *tls_verify_certificates= US"system";
 143 uschar *tls_verify_hosts       = NULL;
 144 #else   /*DISABLE_TLS*/
 145 uschar *tls_advertise_hosts    = NULL;
 146 #endif
 147
 148 #ifndef DISABLE_PRDR
 149 /* Per Recipient Data Response variables */
 150 BOOL    prdr_enable            = FALSE;
 151 BOOL    prdr_requested         = FALSE;
 152 const pcre *regex_PRDR         = NULL;
 153 #endif
 154
 155 #ifdef SUPPORT_I18N
 156 const pcre *regex_UTF8         = NULL;
 157 #endif
 158
 159 /* Input-reading functions for messages, so we can use special ones for
 160 incoming TCP/IP. The defaults use stdin. We never need these for any
 161 stand-alone tests. */
 162
 163 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 164 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 165 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 166 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 167 int (*receive_getc)(unsigned)  = stdin_getc;
 168 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 169 void (*receive_get_cache)(void)= NULL;
 170 int (*receive_ungetc)(int)     = stdin_ungetc;
 171 int (*receive_feof)(void)      = stdin_feof;
 172 int (*receive_ferror)(void)    = stdin_ferror;
 173 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 174 #endif
 175
 176
 177 /* List of per-address expansion variables for clearing and saving/restoring
 178 when verifying one address while routing/verifying another. We have to have
 179 the size explicit, because it is referenced from more than one module. */
 180
 181 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 182   CUSS &deliver_address_data,
 183   CUSS &deliver_domain,
 184   CUSS &deliver_domain_data,
 185   CUSS &deliver_domain_orig,
 186   CUSS &deliver_domain_parent,
 187   CUSS &deliver_localpart,
 188   CUSS &deliver_localpart_data,
 189   CUSS &deliver_localpart_orig,
 190   CUSS &deliver_localpart_parent,
 191   CUSS &deliver_localpart_prefix,
 192   CUSS &deliver_localpart_suffix,
 193   CUSS (uschar **)(&deliver_recipients),
 194   CUSS &deliver_host,
 195   CUSS &deliver_home,
 196   CUSS &address_file,
 197   CUSS &address_pipe,
 198   CUSS &self_hostname,
 199   NULL };
 200
 201 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 202
 203 /******************************************************************************/
 204 /* General global variables.  Boolean flags are done as a group
 205 so that only one bit each is needed, packed, for all those we never
 206 need to take a pointer - and only a char for the rest.
 207 This means a struct, unfortunately since it clutters the sourcecode. */
 208
 209 struct global_flags f =
 210 {
 211         .acl_temp_details       = FALSE,
 212         .active_local_from_check = FALSE,
 213         .active_local_sender_retain = FALSE,
 214         .address_test_mode      = FALSE,
 215         .admin_user             = FALSE,
 216         .allow_auth_unadvertised= FALSE,
 217         .allow_unqualified_recipient = TRUE,    /* For local messages */
 218         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 219         .authentication_local   = FALSE,
 220
 221         .background_daemon      = TRUE,
 222
 223         .chunking_offered       = FALSE,
 224         .config_changed         = FALSE,
 225         .continue_more          = FALSE,
 226
 227         .daemon_listen          = FALSE,
 228         .debug_daemon           = FALSE,
 229         .deliver_firsttime      = FALSE,
 230         .deliver_force          = FALSE,
 231         .deliver_freeze         = FALSE,
 232         .deliver_force_thaw     = FALSE,
 233         .deliver_manual_thaw    = FALSE,
 234         .deliver_selectstring_regex = FALSE,
 235         .deliver_selectstring_sender_regex = FALSE,
 236         .disable_callout_flush  = FALSE,
 237         .disable_delay_flush    = FALSE,
 238         .disable_logging        = FALSE,
 239 #ifndef DISABLE_DKIM
 240         .dkim_disable_verify      = FALSE,
 241         .dkim_init_done           = FALSE,
 242 #endif
 243 #ifdef SUPPORT_DMARC
 244         .dmarc_has_been_checked  = FALSE,
 245         .dmarc_disable_verify    = FALSE,
 246         .dmarc_enable_forensic   = FALSE,
 247 #endif
 248         .dont_deliver           = FALSE,
 249         .dot_ends               = TRUE,
 250
 251         .enable_dollar_recipients = FALSE,
 252         .expand_string_forcedfail = FALSE,
 253
 254         .filter_running         = FALSE,
 255
 256         .header_rewritten       = FALSE,
 257         .helo_verified          = FALSE,
 258         .helo_verify_failed     = FALSE,
 259         .host_checking_callout  = FALSE,
 260         .host_find_failed_syntax= FALSE,
 261
 262         .inetd_wait_mode        = FALSE,
 263         .is_inetd               = FALSE,
 264
 265         .local_error_message    = FALSE,
 266         .log_testing_mode       = FALSE,
 267
 268 #ifdef WITH_CONTENT_SCAN
 269         .no_mbox_unspool        = FALSE,
 270 #endif
 271         .no_multiline_responses = FALSE,
 272
 273         .parse_allow_group      = FALSE,
 274         .parse_found_group      = FALSE,
 275         .pipelining_enable      = TRUE,
 276 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 277         .proxy_session_failed   = FALSE,
 278 #endif
 279
 280         .queue_2stage           = FALSE,
 281         .queue_only_policy      = FALSE,
 282         .queue_run_first_delivery = FALSE,
 283         .queue_run_force        = FALSE,
 284         .queue_run_local        = FALSE,
 285         .queue_running          = FALSE,
 286         .queue_smtp             = FALSE,
 287
 288         .really_exim            = TRUE,
 289         .receive_call_bombout   = FALSE,
 290         .recipients_discarded   = FALSE,
 291         .running_in_test_harness = FALSE,
 292
 293         .search_find_defer      = FALSE,
 294         .sender_address_forced  = FALSE,
 295         .sender_host_notsocket  = FALSE,
 296         .sender_host_unknown    = FALSE,
 297         .sender_local           = FALSE,
 298         .sender_name_forced     = FALSE,
 299         .sender_set_untrusted   = FALSE,
 300         .smtp_authenticated     = FALSE,
 301 #ifndef DISABLE_PIPE_CONNECT
 302         .smtp_in_early_pipe_advertised = FALSE,
 303         .smtp_in_early_pipe_no_auth = FALSE,
 304         .smtp_in_early_pipe_used = FALSE,
 305 #endif
 306         .smtp_in_pipelining_advertised = FALSE,
 307         .smtp_in_pipelining_used = FALSE,
 308         .spool_file_wireformat  = FALSE,
 309         .submission_mode        = FALSE,
 310         .suppress_local_fixups  = FALSE,
 311         .suppress_local_fixups_default = FALSE,
 312         .synchronous_delivery   = FALSE,
 313         .system_filtering       = FALSE,
 314
 315         .tcp_fastopen_ok        = FALSE,
 316         .tcp_in_fastopen        = FALSE,
 317         .tcp_in_fastopen_data   = FALSE,
 318         .tcp_in_fastopen_logged = FALSE,
 319         .tcp_out_fastopen_logged= FALSE,
 320         .timestamps_utc         = FALSE,
 321         .transport_filter_timed_out = FALSE,
 322         .trusted_caller         = FALSE,
 323         .trusted_config         = TRUE,
 324 };
 325
 326 /******************************************************************************/
 327 /* These are the flags which are either variables or mainsection options,
 328 so an address is needed for access, or are exported to local_scan. */
 329
 330 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 331 BOOL    allow_domain_literals  = FALSE;
 332 BOOL    allow_mx_to_ip         = FALSE;
 333 BOOL    allow_utf8_domains     = FALSE;
 334 BOOL    authentication_failed  = FALSE;
 335
 336 BOOL    bounce_return_body     = TRUE;
 337 BOOL    bounce_return_message  = TRUE;
 338 BOOL    check_rfc2047_length   = TRUE;
 339 BOOL    commandline_checks_require_admin = FALSE;
 340
 341 #ifdef EXPERIMENTAL_DCC
 342 BOOL    dcc_direct_add_header  = FALSE;
 343 #endif
 344 BOOL    debug_store            = FALSE;
 345 BOOL    delivery_date_remove   = TRUE;
 346 BOOL    deliver_drop_privilege = FALSE;
 347 #ifdef ENABLE_DISABLE_FSYNC
 348 BOOL    disable_fsync          = FALSE;
 349 #endif
 350 BOOL    disable_ipv6           = FALSE;
 351 BOOL    dns_csa_use_reverse    = TRUE;
 352 BOOL    drop_cr                = FALSE;         /* No longer used */
 353
 354 BOOL    envelope_to_remove     = TRUE;
 355 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 356 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 357 BOOL    extract_addresses_remove_arguments = TRUE;
 358
 359 BOOL    host_checking          = FALSE;
 360 BOOL    host_lookup_deferred   = FALSE;
 361 BOOL    host_lookup_failed     = FALSE;
 362 BOOL    ignore_fromline_local  = FALSE;
 363
 364 BOOL    local_from_check       = TRUE;
 365 BOOL    local_sender_retain    = FALSE;
 366 BOOL    log_timezone           = FALSE;
 367 BOOL    message_body_newlines  = FALSE;
 368 BOOL    message_logs           = TRUE;
 369 #ifdef SUPPORT_I18N
 370 BOOL    message_smtputf8       = FALSE;
 371 #endif
 372 BOOL    mua_wrapper            = FALSE;
 373
 374 BOOL    preserve_message_logs  = FALSE;
 375 BOOL    print_topbitchars      = FALSE;
 376 BOOL    prod_requires_admin    = TRUE;
 377 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 378 BOOL    proxy_session          = FALSE;
 379 #endif
 380
 381 BOOL    queue_list_requires_admin = TRUE;
 382 BOOL    queue_only             = FALSE;
 383 BOOL    queue_only_load_latch  = TRUE;
 384 BOOL    queue_only_override    = TRUE;
 385 BOOL    queue_run_in_order     = FALSE;
 386 BOOL    recipients_max_reject  = FALSE;
 387 BOOL    return_path_remove     = TRUE;
 388
 389 BOOL    smtp_batched_input     = FALSE;
 390 BOOL    sender_helo_dnssec     = FALSE;
 391 BOOL    sender_host_dnssec     = FALSE;
 392 BOOL    smtp_accept_keepalive  = TRUE;
 393 BOOL    smtp_check_spool_space = TRUE;
 394 BOOL    smtp_enforce_sync      = TRUE;
 395 BOOL    smtp_etrn_serialize    = TRUE;
 396 BOOL    smtp_input             = FALSE;
 397 BOOL    smtp_return_error_details = FALSE;
 398 #ifdef SUPPORT_SPF
 399 BOOL    spf_result_guessed     = FALSE;
 400 #endif
 401 BOOL    split_spool_directory  = FALSE;
 402 BOOL    spool_wireformat       = FALSE;
 403 #ifdef EXPERIMENTAL_SRS
 404 BOOL    srs_usehash            = TRUE;
 405 BOOL    srs_usetimestamp       = TRUE;
 406 #endif
 407 BOOL    strict_acl_vars        = FALSE;
 408 BOOL    strip_excess_angle_brackets = FALSE;
 409 BOOL    strip_trailing_dot     = FALSE;
 410 BOOL    syslog_duplication     = TRUE;
 411 BOOL    syslog_pid             = TRUE;
 412 BOOL    syslog_timestamp       = TRUE;
 413 BOOL    system_filter_gid_set  = FALSE;
 414 BOOL    system_filter_uid_set  = FALSE;
 415
 416 BOOL    tcp_nodelay            = TRUE;
 417 BOOL    write_rejectlog        = TRUE;
 418
 419 /******************************************************************************/
 420
 421 header_line *acl_added_headers = NULL;
 422 tree_node *acl_anchor          = NULL;
 423 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 424                                   NULL, NULL, NULL, NULL};
 425 int     acl_narg               = 0;
 426
 427 int     acl_level              = 0;
 428
 429 uschar *acl_not_smtp           = NULL;
 430 #ifdef WITH_CONTENT_SCAN
 431 uschar *acl_not_smtp_mime      = NULL;
 432 #endif
 433 uschar *acl_not_smtp_start     = NULL;
 434 uschar *acl_removed_headers    = NULL;
 435 uschar *acl_smtp_auth          = NULL;
 436 uschar *acl_smtp_connect       = NULL;
 437 uschar *acl_smtp_data          = NULL;
 438 #ifndef DISABLE_PRDR
 439 uschar *acl_smtp_data_prdr     = US"accept";
 440 #endif
 441 #ifndef DISABLE_DKIM
 442 uschar *acl_smtp_dkim          = NULL;
 443 #endif
 444 uschar *acl_smtp_etrn          = NULL;
 445 uschar *acl_smtp_expn          = NULL;
 446 uschar *acl_smtp_helo          = NULL;
 447 uschar *acl_smtp_mail          = NULL;
 448 uschar *acl_smtp_mailauth      = NULL;
 449 #ifdef WITH_CONTENT_SCAN
 450 uschar *acl_smtp_mime          = NULL;
 451 #endif
 452 uschar *acl_smtp_notquit       = NULL;
 453 uschar *acl_smtp_predata       = NULL;
 454 uschar *acl_smtp_quit          = NULL;
 455 uschar *acl_smtp_rcpt          = NULL;
 456 uschar *acl_smtp_starttls      = NULL;
 457 uschar *acl_smtp_vrfy          = NULL;
 458
 459 tree_node *acl_var_c           = NULL;
 460 tree_node *acl_var_m           = NULL;
 461 uschar *acl_verify_message     = NULL;
 462 string_item *acl_warn_logged   = NULL;
 463
 464 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 465 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 466
 467 uschar *acl_wherenames[]       = { US"RCPT",
 468                                    US"MAIL",
 469                                    US"PREDATA",
 470                                    US"MIME",
 471                                    US"DKIM",
 472                                    US"DATA",
 473 #ifndef DISABLE_PRDR
 474                                    US"PRDR",
 475 #endif
 476                                    US"non-SMTP",
 477                                    US"AUTH",
 478                                    US"connection",
 479                                    US"ETRN",
 480                                    US"EXPN",
 481                                    US"EHLO or HELO",
 482                                    US"MAILAUTH",
 483                                    US"non-SMTP-start",
 484                                    US"NOTQUIT",
 485                                    US"QUIT",
 486                                    US"STARTTLS",
 487                                    US"VRFY",
 488                                    US"delivery",
 489                                    US"unknown"
 490                                  };
 491
 492 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 493                                    US"550",     /* MAIL */
 494                                    US"550",     /* PREDATA */
 495                                    US"550",     /* MIME */
 496                                    US"550",     /* DKIM */
 497                                    US"550",     /* DATA */
 498 #ifndef DISABLE_PRDR
 499                                    US"550",    /* RCPT PRDR */
 500 #endif
 501                                    US"0",       /* not SMTP; not relevant */
 502                                    US"503",     /* AUTH */
 503                                    US"550",     /* connect */
 504                                    US"458",     /* ETRN */
 505                                    US"550",     /* EXPN */
 506                                    US"550",     /* HELO/EHLO */
 507                                    US"0",       /* MAILAUTH; not relevant */
 508                                    US"0",       /* not SMTP; not relevant */
 509                                    US"0",       /* NOTQUIT; not relevant */
 510                                    US"0",       /* QUIT; not relevant */
 511                                    US"550",     /* STARTTLS */
 512                                    US"252",     /* VRFY */
 513                                    US"0",       /* delivery; not relevant */
 514                                    US"0"        /* unknown; not relevant */
 515                                  };
 516
 517 uschar *add_environment        = NULL;
 518 address_item  *addr_duplicate  = NULL;
 519
 520 address_item address_defaults = {
 521   .next =               NULL,
 522   .parent =             NULL,
 523   .first =              NULL,
 524   .dupof =              NULL,
 525   .start_router =       NULL,
 526   .router =             NULL,
 527   .transport =          NULL,
 528   .host_list =          NULL,
 529   .host_used =          NULL,
 530   .fallback_hosts =     NULL,
 531   .reply =              NULL,
 532   .retries =            NULL,
 533   .address =            NULL,
 534   .unique =             NULL,
 535   .cc_local_part =      NULL,
 536   .lc_local_part =      NULL,
 537   .local_part =         NULL,
 538   .prefix =             NULL,
 539   .suffix =             NULL,
 540   .domain =             NULL,
 541   .address_retry_key =  NULL,
 542   .domain_retry_key =   NULL,
 543   .current_dir =        NULL,
 544   .home_dir =           NULL,
 545   .message =            NULL,
 546   .user_message =       NULL,
 547   .onetime_parent =     NULL,
 548   .pipe_expandn =       NULL,
 549   .return_filename =    NULL,
 550   .self_hostname =      NULL,
 551   .shadow_message =     NULL,
 552 #ifndef DISABLE_TLS
 553   .cipher =             NULL,
 554   .ourcert =            NULL,
 555   .peercert =           NULL,
 556   .peerdn =             NULL,
 557   .ocsp =               OCSP_NOT_REQ,
 558 #endif
 559 #ifdef EXPERIMENTAL_DSN_INFO
 560   .smtp_greeting =      NULL,
 561   .helo_response =      NULL,
 562 #endif
 563   .authenticator =      NULL,
 564   .auth_id =            NULL,
 565   .auth_sndr =          NULL,
 566   .dsn_orcpt =          NULL,
 567   .dsn_flags =          0,
 568   .dsn_aware =          0,
 569   .uid =                (uid_t)(-1),
 570   .gid =                (gid_t)(-1),
 571   .flags =              { 0 },
 572   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 573   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 574   .mode =               -1,
 575   .more_errno =         0,
 576   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 577   .basic_errno =        ERRNO_UNKNOWNERROR,
 578   .child_count =        0,
 579   .return_file =        -1,
 580   .special_action =     SPECIAL_NONE,
 581   .transport_return =   DEFER,
 582   .prop = {                                     /* fields that are propagated to children */
 583     .address_data =     NULL,
 584     .domain_data =      NULL,
 585     .localpart_data =   NULL,
 586     .errors_address =   NULL,
 587     .extra_headers =    NULL,
 588     .remove_headers =   NULL,
 589     .variables =        NULL,
 590 #ifdef EXPERIMENTAL_SRS
 591     .srs_sender =       NULL,
 592 #endif
 593     .ignore_error =     FALSE,
 594 #ifdef SUPPORT_I18N
 595     .utf8_msg =         FALSE,
 596     .utf8_downcvt =     FALSE,
 597     .utf8_downcvt_maybe = FALSE
 598 #endif
 599   }
 600 };
 601
 602 uschar *address_file           = NULL;
 603 uschar *address_pipe           = NULL;
 604 tree_node *addresslist_anchor  = NULL;
 605 int     addresslist_count      = 0;
 606 gid_t  *admin_groups           = NULL;
 607
 608 #ifdef EXPERIMENTAL_ARC
 609 struct arc_set *arc_received    = NULL;
 610 int     arc_received_instance   = 0;
 611 int     arc_oldest_pass         = 0;
 612 const uschar *arc_state         = NULL;
 613 const uschar *arc_state_reason  = NULL;
 614 #endif
 615
 616 uschar *authenticated_fail_id  = NULL;
 617 uschar *authenticated_id       = NULL;
 618 uschar *authenticated_sender   = NULL;
 619 auth_instance  *auths          = NULL;
 620 uschar *auth_advertise_hosts   = US"*";
 621 auth_instance auth_defaults    = {
 622     .next =             NULL,
 623     .name =             NULL,
 624     .info =             NULL,
 625     .options_block =    NULL,
 626     .driver_name =      NULL,
 627     .advertise_condition = NULL,
 628     .client_condition = NULL,
 629     .public_name =      NULL,
 630     .set_id =           NULL,
 631     .set_client_id =    NULL,
 632     .mail_auth_condition = NULL,
 633     .server_debug_string = NULL,
 634     .server_condition = NULL,
 635     .client =           FALSE,
 636     .server =           FALSE,
 637     .advertised =       FALSE
 638 };
 639
 640 uschar *auth_defer_msg         = US"reason not recorded";
 641 uschar *auth_defer_user_msg    = US"";
 642 uschar *auth_vars[AUTH_VARS];
 643 int     auto_thaw              = 0;
 644 #ifdef WITH_CONTENT_SCAN
 645 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 646 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 647 #endif
 648
 649 #if BASE_62 == 62
 650 uschar *base62_chars=
 651     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 652 #else
 653 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 654 #endif
 655
 656 uschar *bi_command             = NULL;
 657 uschar *big_buffer             = NULL;
 658 int     big_buffer_size        = BIG_BUFFER_SIZE;
 659 #ifdef EXPERIMENTAL_BRIGHTMAIL
 660 uschar *bmi_alt_location       = NULL;
 661 uschar *bmi_base64_tracker_verdict = NULL;
 662 uschar *bmi_base64_verdict     = NULL;
 663 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 664 int     bmi_deliver            = 1;
 665 int     bmi_run                = 0;
 666 uschar *bmi_verdicts           = NULL;
 667 #endif
 668 int     bsmtp_transaction_linecount = 0;
 669 int     body_8bitmime          = 0;
 670 int     body_linecount         = 0;
 671 int     body_zerocount         = 0;
 672 uschar *bounce_message_file    = NULL;
 673 uschar *bounce_message_text    = NULL;
 674 uschar *bounce_recipient       = NULL;
 675 int     bounce_return_linesize_limit = 998;
 676 int     bounce_return_size_limit = 100*1024;
 677 uschar *bounce_sender_authentication = NULL;
 678
 679 uschar *callout_address        = NULL;
 680 int     callout_cache_domain_positive_expire = 7*24*60*60;
 681 int     callout_cache_domain_negative_expire = 3*60*60;
 682 int     callout_cache_positive_expire = 24*60*60;
 683 int     callout_cache_negative_expire = 2*60*60;
 684 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 685 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 686 int     check_log_inodes       = 100;
 687 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 688 int     check_spool_inodes     = 100;
 689 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 690
 691 uschar *chunking_advertise_hosts = US"*";
 692 unsigned chunking_datasize     = 0;
 693 unsigned chunking_data_left    = 0;
 694 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 695 const pcre *regex_CHUNKING     = NULL;
 696
 697 uschar *client_authenticator   = NULL;
 698 uschar *client_authenticated_id = NULL;
 699 uschar *client_authenticated_sender = NULL;
 700 int     clmacro_count          = 0;
 701 uschar *clmacros[MAX_CLMACROS];
 702 FILE   *config_file            = NULL;
 703 const uschar *config_filename  = NULL;
 704 int     config_lineno          = 0;
 705 #ifdef CONFIGURE_GROUP
 706 gid_t   config_gid             = CONFIGURE_GROUP;
 707 #else
 708 gid_t   config_gid             = 0;
 709 #endif
 710 uschar *config_main_filelist   = US CONFIGURE_FILE
 711                          "\0<-----------Space to patch configure_filename->";
 712 uschar *config_main_filename   = NULL;
 713 uschar *config_main_directory  = NULL;
 714
 715 #ifdef CONFIGURE_OWNER
 716 uid_t   config_uid             = CONFIGURE_OWNER;
 717 #else
 718 uid_t   config_uid             = 0;
 719 #endif
 720
 721 int     connection_max_messages= -1;
 722 uschar *continue_proxy_cipher  = NULL;
 723 uschar *continue_hostname      = NULL;
 724 uschar *continue_host_address  = NULL;
 725 int     continue_sequence      = 1;
 726 uschar *continue_transport     = NULL;
 727
 728 uschar *csa_status             = NULL;
 729 cut_t   cutthrough = {
 730   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 731   .delivery =           FALSE,                          /* when to attempt */
 732   .defer_pass =         FALSE,                          /* on defer: spool locally */
 733   .is_tls =             FALSE,                          /* not a TLS conn yet */
 734   .cctx =               {.sock = -1},                   /* open connection */
 735   .nrcpt =              0,                              /* number of addresses */
 736 };
 737
 738 uschar *daemon_smtp_port       = US"smtp";
 739 int     daemon_startup_retries = 9;
 740 int     daemon_startup_sleep   = 30;
 741
 742 #ifdef EXPERIMENTAL_DCC
 743 uschar *dcc_header             = NULL;
 744 uschar *dcc_result             = NULL;
 745 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 746 uschar *dccifd_options         = US"header";
 747 #endif
 748
 749 int     debug_fd               = -1;
 750 FILE   *debug_file             = NULL;
 751 int     debug_notall[]         = {
 752   Di_memory,
 753   Di_noutf8,
 754   -1
 755 };
 756 bit_table debug_options[]      = { /* must be in alphabetical order and use
 757                                  only the enum values from macro.h */
 758   BIT_TABLE(D, acl),
 759   BIT_TABLE(D, all),
 760   BIT_TABLE(D, auth),
 761   BIT_TABLE(D, deliver),
 762   BIT_TABLE(D, dns),
 763   BIT_TABLE(D, dnsbl),
 764   BIT_TABLE(D, exec),
 765   BIT_TABLE(D, expand),
 766   BIT_TABLE(D, filter),
 767   BIT_TABLE(D, hints_lookup),
 768   BIT_TABLE(D, host_lookup),
 769   BIT_TABLE(D, ident),
 770   BIT_TABLE(D, interface),
 771   BIT_TABLE(D, lists),
 772   BIT_TABLE(D, load),
 773   BIT_TABLE(D, local_scan),
 774   BIT_TABLE(D, lookup),
 775   BIT_TABLE(D, memory),
 776   BIT_TABLE(D, noutf8),
 777   BIT_TABLE(D, pid),
 778   BIT_TABLE(D, process_info),
 779   BIT_TABLE(D, queue_run),
 780   BIT_TABLE(D, receive),
 781   BIT_TABLE(D, resolver),
 782   BIT_TABLE(D, retry),
 783   BIT_TABLE(D, rewrite),
 784   BIT_TABLE(D, route),
 785   BIT_TABLE(D, timestamp),
 786   BIT_TABLE(D, tls),
 787   BIT_TABLE(D, transport),
 788   BIT_TABLE(D, uid),
 789   BIT_TABLE(D, verify),
 790 };
 791 int     debug_options_count    = nelem(debug_options);
 792
 793 unsigned int debug_selector    = 0;
 794 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 795 uschar *delay_warning_condition=
 796   US"${if or {"
 797             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 798             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 799             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 800             "} {no}{yes}}";
 801 uschar *deliver_address_data   = NULL;
 802 int     deliver_datafile       = -1;
 803 const uschar *deliver_domain   = NULL;
 804 uschar *deliver_domain_data    = NULL;
 805 const uschar *deliver_domain_orig = NULL;
 806 const uschar *deliver_domain_parent = NULL;
 807 time_t  deliver_frozen_at      = 0;
 808 uschar *deliver_home           = NULL;
 809 const uschar *deliver_host     = NULL;
 810 const uschar *deliver_host_address = NULL;
 811 int     deliver_host_port      = 0;
 812 uschar *deliver_in_buffer      = NULL;
 813 ino_t   deliver_inode          = 0;
 814 uschar *deliver_localpart      = NULL;
 815 uschar *deliver_localpart_data = NULL;
 816 uschar *deliver_localpart_orig = NULL;
 817 uschar *deliver_localpart_parent = NULL;
 818 uschar *deliver_localpart_prefix = NULL;
 819 uschar *deliver_localpart_suffix = NULL;
 820 uschar *deliver_out_buffer     = NULL;
 821 int     deliver_queue_load_max = -1;
 822 address_item  *deliver_recipients = NULL;
 823 uschar *deliver_selectstring   = NULL;
 824 uschar *deliver_selectstring_sender = NULL;
 825
 826 #ifndef DISABLE_DKIM
 827 unsigned dkim_collect_input      = 0;
 828 uschar *dkim_cur_signer          = NULL;
 829 int     dkim_key_length          = 0;
 830 void   *dkim_signatures          = NULL;
 831 uschar *dkim_signers             = NULL;
 832 uschar *dkim_signing_domain      = NULL;
 833 uschar *dkim_signing_selector    = NULL;
 834 uschar *dkim_verify_hashes       = US"sha256:sha512";
 835 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 836 BOOL    dkim_verify_minimal      = FALSE;
 837 uschar *dkim_verify_overall      = NULL;
 838 uschar *dkim_verify_signers      = US"$dkim_signers";
 839 uschar *dkim_verify_status       = NULL;
 840 uschar *dkim_verify_reason       = NULL;
 841 #endif
 842 #ifdef SUPPORT_DMARC
 843 uschar *dmarc_domain_policy     = NULL;
 844 uschar *dmarc_forensic_sender   = NULL;
 845 uschar *dmarc_history_file      = NULL;
 846 uschar *dmarc_status            = NULL;
 847 uschar *dmarc_status_text       = NULL;
 848 uschar *dmarc_tld_file          = NULL;
 849 uschar *dmarc_used_domain       = NULL;
 850 #endif
 851
 852 uschar *dns_again_means_nonexist = NULL;
 853 int     dns_csa_search_limit   = 5;
 854 int     dns_cname_loops        = 1;
 855 #ifdef SUPPORT_DANE
 856 int     dns_dane_ok            = -1;
 857 #endif
 858 uschar *dns_ipv4_lookup        = NULL;
 859 int     dns_retrans            = 0;
 860 int     dns_retry              = 0;
 861 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 862 uschar *dns_trust_aa           = NULL;
 863 int     dns_use_edns0          = -1; /* <0 = not coerced */
 864 uschar *dnslist_domain         = NULL;
 865 uschar *dnslist_matched        = NULL;
 866 uschar *dnslist_text           = NULL;
 867 uschar *dnslist_value          = NULL;
 868 tree_node *domainlist_anchor   = NULL;
 869 int     domainlist_count       = 0;
 870 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 871
 872 int     errno_quota            = ERRNO_QUOTA;
 873 uschar *errors_copy            = NULL;
 874 int     error_handling         = ERRORS_SENDER;
 875 uschar *errors_reply_to        = NULL;
 876 int     errors_sender_rc       = EXIT_FAILURE;
 877 #ifndef DISABLE_EVENT
 878 uschar *event_action             = NULL;        /* expansion for delivery events */
 879 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 880 int     event_defer_errno        = 0;
 881 const uschar *event_name         = NULL;        /* event name variable */
 882 #endif
 883
 884
 885 gid_t   exim_gid               = EXIM_GID;
 886 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 887                         "\0<---------------Space to patch exim_path->";
 888 uid_t   exim_uid               = EXIM_UID;
 889 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 890 int     expand_forbid          = 0;
 891 int     expand_nlength[EXPAND_MAXN+1];
 892 int     expand_nmax            = -1;
 893 uschar *expand_nstring[EXPAND_MAXN+1];
 894 uschar *expand_string_message;
 895 uschar *extra_local_interfaces = NULL;
 896
 897 int     fake_response          = OK;
 898 uschar *fake_response_text     = US"Your message has been rejected but is "
 899                                    "being kept for evaluation.\nIf it was a "
 900                                    "legitimate message, it may still be "
 901                                    "delivered to the target recipient(s).";
 902 int     filter_n[FILTER_VARIABLE_COUNT];
 903 int     filter_sn[FILTER_VARIABLE_COUNT];
 904 int     filter_test            = FTEST_NONE;
 905 uschar *filter_test_sfile      = NULL;
 906 uschar *filter_test_ufile      = NULL;
 907 uschar *filter_thisaddress     = NULL;
 908 int     finduser_retries       = 0;
 909 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 910 uschar *freeze_tell            = NULL;
 911 uschar *freeze_tell_config     = NULL;
 912 uschar *fudged_queue_times     = US"";
 913
 914 uschar *gecos_name             = NULL;
 915 uschar *gecos_pattern          = NULL;
 916 rewrite_rule  *global_rewrite_rules = NULL;
 917
 918 volatile sig_atomic_t had_command_timeout = 0;
 919 volatile sig_atomic_t had_command_sigterm = 0;
 920 volatile sig_atomic_t had_data_timeout    = 0;
 921 volatile sig_atomic_t had_data_sigint     = 0;
 922 uschar *headers_charset        = US HEADERS_CHARSET;
 923 int     header_insert_maxlen   = 64 * 1024;
 924 header_line  *header_last      = NULL;
 925 header_line  *header_list      = NULL;
 926 int     header_maxsize         = HEADER_MAXSIZE;
 927 int     header_line_maxsize    = 0;
 928
 929 header_name header_names[] = {
 930   /* name               len     allow_resent    htype */
 931   { US"bcc",            3,      TRUE,           htype_bcc },
 932   { US"cc",             2,      TRUE,           htype_cc },
 933   { US"date",           4,      TRUE,           htype_date },
 934   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 935   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 936   { US"from",           4,      TRUE,           htype_from },
 937   { US"message-id",    10,      TRUE,           htype_id },
 938   { US"received",       8,      FALSE,          htype_received },
 939   { US"reply-to",       8,      FALSE,          htype_reply_to },
 940   { US"return-path",   11,      FALSE,          htype_return_path },
 941   { US"sender",         6,      TRUE,           htype_sender },
 942   { US"subject",        7,      FALSE,          htype_subject },
 943   { US"to",             2,      TRUE,           htype_to }
 944 };
 945
 946 int header_names_size          = nelem(header_names);
 947
 948 uschar *helo_accept_junk_hosts = NULL;
 949 uschar *helo_allow_chars       = US"";
 950 uschar *helo_lookup_domains    = US"@ : @[]";
 951 uschar *helo_try_verify_hosts  = NULL;
 952 uschar *helo_verify_hosts      = NULL;
 953 const uschar *hex_digits       = CUS"0123456789abcdef";
 954 uschar *hold_domains           = NULL;
 955 uschar *host_data              = NULL;
 956 uschar *host_lookup            = NULL;
 957 uschar *host_lookup_order      = US"bydns:byaddr";
 958 uschar *host_lookup_msg        = US"";
 959 int     host_number            = 0;
 960 uschar *host_number_string     = NULL;
 961 uschar *host_reject_connection = NULL;
 962 tree_node *hostlist_anchor     = NULL;
 963 int     hostlist_count         = 0;
 964 uschar *hosts_treat_as_local   = NULL;
 965 uschar *hosts_connection_nolog = NULL;
 966
 967 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 968 uschar *ignore_fromline_hosts  = NULL;
 969 int     inetd_wait_timeout     = -1;
 970 uschar *initial_cwd            = NULL;
 971 uschar *interface_address      = NULL;
 972 int     interface_port         = -1;
 973 uschar *iterate_item           = NULL;
 974
 975 int     journal_fd             = -1;
 976
 977 uschar *keep_environment       = NULL;
 978
 979 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 980
 981 uschar *eldap_dn               = NULL;
 982 int     load_average           = -2;
 983 uschar *local_from_prefix      = NULL;
 984 uschar *local_from_suffix      = NULL;
 985
 986 #if HAVE_IPV6
 987 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 988 #else
 989 uschar *local_interfaces       = US"0.0.0.0";
 990 #endif
 991
 992 #ifdef HAVE_LOCAL_SCAN
 993 uschar *local_scan_data        = NULL;
 994 int     local_scan_timeout     = 5*60;
 995 #endif
 996 gid_t   local_user_gid         = (gid_t)(-1);
 997 uid_t   local_user_uid         = (uid_t)(-1);
 998
 999 tree_node *localpartlist_anchor= NULL;
1000 int     localpartlist_count    = 0;
1001 uschar *log_buffer             = NULL;
1002
1003 int     log_default[]          = { /* for initializing log_selector */
1004   Li_acl_warn_skipped,
1005   Li_connection_reject,
1006   Li_delay_delivery,
1007   Li_dkim,
1008   Li_dnslist_defer,
1009   Li_etrn,
1010   Li_host_lookup_failed,
1011   Li_lost_incoming_connection,
1012   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1013   Li_msg_id,
1014   Li_queue_run,
1015   Li_rejected_header,
1016   Li_retry_defer,
1017   Li_sender_verify_fail,
1018   Li_size_reject,
1019   Li_skip_delivery,
1020   Li_smtp_confirmation,
1021   Li_tls_certificate_verified,
1022   Li_tls_cipher,
1023   -1
1024 };
1025
1026 uschar *log_file_path          = US LOG_FILE_PATH
1027                            "\0<--------------Space to patch log_file_path->";
1028
1029 int     log_notall[]           = {
1030   -1
1031 };
1032 bit_table log_options[]        = { /* must be in alphabetical order,
1033                                 with definitions from enum logbit. */
1034   BIT_TABLE(L, 8bitmime),
1035   BIT_TABLE(L, acl_warn_skipped),
1036   BIT_TABLE(L, address_rewrite),
1037   BIT_TABLE(L, all),
1038   BIT_TABLE(L, all_parents),
1039   BIT_TABLE(L, arguments),
1040   BIT_TABLE(L, connection_reject),
1041   BIT_TABLE(L, delay_delivery),
1042   BIT_TABLE(L, deliver_time),
1043   BIT_TABLE(L, delivery_size),
1044 #ifndef DISABLE_DKIM
1045   BIT_TABLE(L, dkim),
1046   BIT_TABLE(L, dkim_verbose),
1047 #endif
1048   BIT_TABLE(L, dnslist_defer),
1049   BIT_TABLE(L, dnssec),
1050   BIT_TABLE(L, etrn),
1051   BIT_TABLE(L, host_lookup_failed),
1052   BIT_TABLE(L, ident_timeout),
1053   BIT_TABLE(L, incoming_interface),
1054   BIT_TABLE(L, incoming_port),
1055   BIT_TABLE(L, lost_incoming_connection),
1056   BIT_TABLE(L, millisec),
1057   BIT_TABLE(L, msg_id),
1058   BIT_TABLE(L, msg_id_created),
1059   BIT_TABLE(L, outgoing_interface),
1060   BIT_TABLE(L, outgoing_port),
1061   BIT_TABLE(L, pid),
1062   BIT_TABLE(L, pipelining),
1063 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1064   BIT_TABLE(L, proxy),
1065 #endif
1066   BIT_TABLE(L, queue_run),
1067   BIT_TABLE(L, queue_time),
1068   BIT_TABLE(L, queue_time_overall),
1069   BIT_TABLE(L, receive_time),
1070   BIT_TABLE(L, received_recipients),
1071   BIT_TABLE(L, received_sender),
1072   BIT_TABLE(L, rejected_header),
1073   { US"rejected_headers", Li_rejected_header },
1074   BIT_TABLE(L, retry_defer),
1075   BIT_TABLE(L, return_path_on_delivery),
1076   BIT_TABLE(L, sender_on_delivery),
1077   BIT_TABLE(L, sender_verify_fail),
1078   BIT_TABLE(L, size_reject),
1079   BIT_TABLE(L, skip_delivery),
1080   BIT_TABLE(L, smtp_confirmation),
1081   BIT_TABLE(L, smtp_connection),
1082   BIT_TABLE(L, smtp_incomplete_transaction),
1083   BIT_TABLE(L, smtp_mailauth),
1084   BIT_TABLE(L, smtp_no_mail),
1085   BIT_TABLE(L, smtp_protocol_error),
1086   BIT_TABLE(L, smtp_syntax_error),
1087   BIT_TABLE(L, subject),
1088   BIT_TABLE(L, tls_certificate_verified),
1089   BIT_TABLE(L, tls_cipher),
1090   BIT_TABLE(L, tls_peerdn),
1091   BIT_TABLE(L, tls_resumption),
1092   BIT_TABLE(L, tls_sni),
1093   BIT_TABLE(L, unknown_in_list),
1094 };
1095 int     log_options_count      = nelem(log_options);
1096
1097 int     log_reject_target      = 0;
1098 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1099 uschar *log_selector_string    = NULL;
1100 FILE   *log_stderr             = NULL;
1101 uschar *login_sender_address   = NULL;
1102 uschar *lookup_dnssec_authenticated = NULL;
1103 int     lookup_open_max        = 25;
1104 uschar *lookup_value           = NULL;
1105
1106 macro_item *macros_user        = NULL;
1107 uschar *mailstore_basename     = NULL;
1108 #ifdef WITH_CONTENT_SCAN
1109 uschar *malware_name           = NULL;  /* Virus Name */
1110 #endif
1111 int     max_received_linelength= 0;
1112 int     max_username_length    = 0;
1113 int     message_age            = 0;
1114 uschar *message_body           = NULL;
1115 uschar *message_body_end       = NULL;
1116 int     message_body_size      = 0;
1117 int     message_body_visible   = 500;
1118 int     message_ended          = END_NOTSTARTED;
1119 uschar *message_headers        = NULL;
1120 uschar *message_id;
1121 uschar *message_id_domain      = NULL;
1122 uschar *message_id_text        = NULL;
1123 struct timeval message_id_tv   = { 0, 0 };
1124 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1125 uschar *message_id_external;
1126 int     message_linecount      = 0;
1127 int     message_size           = 0;
1128 uschar *message_size_limit     = US"50M";
1129 #ifdef SUPPORT_I18N
1130 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1131 #endif
1132 uschar  message_subdir[2]      = { 0, 0 };
1133 uschar *message_reference      = NULL;
1134
1135 /* MIME ACL expandables */
1136 #ifdef WITH_CONTENT_SCAN
1137 int     mime_anomaly_level     = 0;
1138 const uschar *mime_anomaly_text      = NULL;
1139 uschar *mime_boundary          = NULL;
1140 uschar *mime_charset           = NULL;
1141 uschar *mime_content_description = NULL;
1142 uschar *mime_content_disposition = NULL;
1143 uschar *mime_content_id        = NULL;
1144 unsigned int mime_content_size = 0;
1145 uschar *mime_content_transfer_encoding = NULL;
1146 uschar *mime_content_type      = NULL;
1147 uschar *mime_decoded_filename  = NULL;
1148 uschar *mime_filename          = NULL;
1149 int     mime_is_multipart      = 0;
1150 int     mime_is_coverletter    = 0;
1151 int     mime_is_rfc822         = 0;
1152 int     mime_part_count        = -1;
1153 #endif
1154
1155 uid_t  *never_users            = NULL;
1156
1157 const int on                   = 1;     /* for setsockopt */
1158 const int off                  = 0;
1159
1160 uid_t   original_euid;
1161 gid_t   originator_gid;
1162 uschar *originator_login       = NULL;
1163 uschar *originator_name        = NULL;
1164 uid_t   originator_uid;
1165 uschar *override_local_interfaces = NULL;
1166 uschar *override_pid_file_path = NULL;
1167
1168 uschar *percent_hack_domains   = NULL;
1169 uschar *pid_file_path          = US PID_FILE_PATH
1170                            "\0<--------------Space to patch pid_file_path->";
1171 #ifndef DISABLE_PIPE_CONNECT
1172 uschar *pipe_connect_advertise_hosts = US"*";
1173 #endif
1174 uschar *pipelining_advertise_hosts = US"*";
1175 uschar *primary_hostname       = NULL;
1176 uschar *process_info;
1177 int     process_info_len       = 0;
1178 uschar *process_log_path       = NULL;
1179
1180 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1181 uschar *hosts_proxy            = NULL;
1182 uschar *proxy_external_address = NULL;
1183 int     proxy_external_port    = 0;
1184 uschar *proxy_local_address    = NULL;
1185 int     proxy_local_port       = 0;
1186 #endif
1187
1188 uschar *prvscheck_address      = NULL;
1189 uschar *prvscheck_keynum       = NULL;
1190 uschar *prvscheck_result       = NULL;
1191
1192
1193 const uschar *qualify_domain_recipient = NULL;
1194 uschar *qualify_domain_sender  = NULL;
1195 uschar *queue_domains          = NULL;
1196 int     queue_interval         = -1;
1197 uschar *queue_name             = US"";
1198 uschar *queue_name_dest        = NULL;
1199 uschar *queue_only_file        = NULL;
1200 int     queue_only_load        = -1;
1201 uschar *queue_run_max          = US"5";
1202 pid_t   queue_run_pid          = (pid_t)0;
1203 int     queue_run_pipe         = -1;
1204 uschar *queue_smtp_domains     = NULL;
1205
1206 uint32_t random_seed           = 0;
1207 tree_node *ratelimiters_cmd    = NULL;
1208 tree_node *ratelimiters_conn   = NULL;
1209 tree_node *ratelimiters_mail   = NULL;
1210 uschar *raw_active_hostname    = NULL;
1211 uschar *raw_sender             = NULL;
1212 uschar **raw_recipients        = NULL;
1213 int     raw_recipients_count   = 0;
1214
1215 int     rcpt_count             = 0;
1216 int     rcpt_fail_count        = 0;
1217 int     rcpt_defer_count       = 0;
1218 gid_t   real_gid;
1219 uid_t   real_uid;
1220 int     receive_linecount      = 0;
1221 int     receive_messagecount   = 0;
1222 int     receive_timeout        = 0;
1223 int     received_count         = 0;
1224 uschar *received_for           = NULL;
1225
1226 /*  This is the default text for Received headers generated by Exim. The
1227 date  will be automatically added on the end. */
1228
1229 uschar *received_header_text   = US
1230      "Received: "
1231      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1232        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1233          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1234      "by $primary_hostname "
1235      "${if def:received_protocol {with $received_protocol }}"
1236 #ifndef DISABLE_TLS
1237      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1238      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1239 #endif
1240      "(Exim $version_number)\n\t"
1241      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1242      "id $message_exim_id"
1243      "${if def:received_for {\n\tfor $received_for}}"
1244      "\0<---------------Space to patch received_header_text->";
1245
1246 int     received_headers_max   = 30;
1247 uschar *received_protocol      = NULL;
1248 struct timeval received_time   = { 0, 0 };
1249 struct timeval received_time_taken = { 0, 0 };
1250 uschar *recipient_data         = NULL;
1251 uschar *recipient_unqualified_hosts = NULL;
1252 uschar *recipient_verify_failure = NULL;
1253 int     recipients_count       = 0;
1254 recipient_item  *recipients_list = NULL;
1255 int     recipients_list_max    = 0;
1256 int     recipients_max         = 0;
1257 const pcre *regex_AUTH         = NULL;
1258 const pcre *regex_check_dns_names = NULL;
1259 const pcre *regex_From         = NULL;
1260 const pcre *regex_IGNOREQUOTA  = NULL;
1261 const pcre *regex_PIPELINING   = NULL;
1262 const pcre *regex_SIZE         = NULL;
1263 #ifndef DISABLE_PIPE_CONNECT
1264 const pcre *regex_EARLY_PIPE   = NULL;
1265 #endif
1266 const pcre *regex_ismsgid      = NULL;
1267 const pcre *regex_smtp_code    = NULL;
1268 uschar *regex_vars[REGEX_VARS];
1269 #ifdef WHITELIST_D_MACROS
1270 const pcre *regex_whitelisted_macro = NULL;
1271 #endif
1272 #ifdef WITH_CONTENT_SCAN
1273 uschar *regex_match_string     = NULL;
1274 #endif
1275 int     remote_delivery_count  = 0;
1276 int     remote_max_parallel    = 2;
1277 uschar *remote_sort_domains    = NULL;
1278 int     retry_data_expire      = 7*24*60*60;
1279 int     retry_interval_max     = 24*60*60;
1280 int     retry_maximum_timeout  = 0;        /* set from retry config */
1281 retry_config  *retries         = NULL;
1282 uschar *return_path            = NULL;
1283 int     rewrite_existflags     = 0;
1284 uschar *rfc1413_hosts          = US"@[]";
1285 int     rfc1413_query_timeout  = 0;
1286 uid_t   root_gid               = ROOT_GID;
1287 uid_t   root_uid               = ROOT_UID;
1288
1289 router_instance  *routers  = NULL;
1290 router_instance  router_defaults = {
1291     .next =                     NULL,
1292     .name =                     NULL,
1293     .info =                     NULL,
1294     .options_block =            NULL,
1295     .driver_name =              NULL,
1296
1297     .address_data =             NULL,
1298 #ifdef EXPERIMENTAL_BRIGHTMAIL
1299     .bmi_rule =                 NULL,
1300 #endif
1301     .cannot_route_message =     NULL,
1302     .condition =                NULL,
1303     .current_directory =        NULL,
1304     .debug_string =             NULL,
1305     .domains =                  NULL,
1306     .errors_to =                NULL,
1307     .expand_gid =               NULL,
1308     .expand_uid =               NULL,
1309     .expand_more =              NULL,
1310     .expand_unseen =            NULL,
1311     .extra_headers =            NULL,
1312     .fallback_hosts =           NULL,
1313     .home_directory =           NULL,
1314     .ignore_target_hosts =      NULL,
1315     .local_parts =              NULL,
1316     .pass_router_name =         NULL,
1317     .prefix =                   NULL,
1318     .redirect_router_name =     NULL,
1319     .remove_headers =           NULL,
1320     .require_files =            NULL,
1321     .router_home_directory =    NULL,
1322     .self =                     US"freeze",
1323     .senders =                  NULL,
1324     .suffix =                   NULL,
1325     .translate_ip_address =     NULL,
1326     .transport_name =           NULL,
1327
1328     .address_test =             TRUE,
1329 #ifdef EXPERIMENTAL_BRIGHTMAIL
1330     .bmi_deliver_alternate =    FALSE,
1331     .bmi_deliver_default =      FALSE,
1332     .bmi_dont_deliver =         FALSE,
1333 #endif
1334     .expn =                     TRUE,
1335     .caseful_local_part =       FALSE,
1336     .check_local_user =         FALSE,
1337     .disable_logging =          FALSE,
1338     .fail_verify_recipient =    FALSE,
1339     .fail_verify_sender =       FALSE,
1340     .gid_set =                  FALSE,
1341     .initgroups =               FALSE,
1342     .log_as_local =             TRUE_UNSET,
1343     .more =                     TRUE,
1344     .pass_on_timeout =          FALSE,
1345     .prefix_optional =          FALSE,
1346     .repeat_use =               TRUE,
1347     .retry_use_local_part =     TRUE_UNSET,
1348     .same_domain_copy_routing = FALSE,
1349     .self_rewrite =             FALSE,
1350     .set =                      NULL,
1351     .suffix_optional =          FALSE,
1352     .verify_only =              FALSE,
1353     .verify_recipient =         TRUE,
1354     .verify_sender =            TRUE,
1355     .uid_set =                  FALSE,
1356     .unseen =                   FALSE,
1357     .dsn_lasthop =              FALSE,
1358
1359     .self_code =                self_freeze,
1360     .uid =                      (uid_t)(-1),
1361     .gid =                      (gid_t)(-1),
1362
1363     .fallback_hostlist =        NULL,
1364     .transport =                NULL,
1365     .pass_router =              NULL,
1366     .redirect_router =          NULL,
1367
1368     .dnssec =                   { .request= US"*", .require=NULL },
1369 };
1370
1371 uschar *router_name            = NULL;
1372 tree_node *router_var          = NULL;
1373
1374 ip_address_item *running_interfaces = NULL;
1375
1376 /* This is a weird one. The following string gets patched in the binary by the
1377 script that sets up a copy of Exim for running in the test harness. It seems
1378 that compilers are now clever, and share constant strings if they can.
1379 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1380 make use of the end of this string in order to save space. So the patching then
1381 wrecks this. We defeat this optimization by adding some additional characters
1382 onto the end of the string. */
1383
1384 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1385
1386 int     runrc                  = 0;
1387
1388 uschar *search_error_message   = NULL;
1389 uschar *self_hostname          = NULL;
1390 uschar *sender_address         = NULL;
1391 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1392 uschar *sender_address_data    = NULL;
1393 uschar *sender_address_unrewritten = NULL;
1394 uschar *sender_data            = NULL;
1395 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1396 uschar *sender_fullhost        = NULL;
1397 uschar *sender_helo_name       = NULL;
1398 uschar **sender_host_aliases   = &no_aliases;
1399 uschar *sender_host_address    = NULL;
1400 uschar *sender_host_authenticated = NULL;
1401 uschar *sender_host_auth_pubname  = NULL;
1402 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1403 uschar *sender_host_name       = NULL;
1404 int     sender_host_port       = 0;
1405 uschar *sender_ident           = NULL;
1406 uschar *sender_rate            = NULL;
1407 uschar *sender_rate_limit      = NULL;
1408 uschar *sender_rate_period     = NULL;
1409 uschar *sender_rcvhost         = NULL;
1410 uschar *sender_unqualified_hosts = NULL;
1411 uschar *sender_verify_failure = NULL;
1412 address_item *sender_verified_list  = NULL;
1413 address_item *sender_verified_failed = NULL;
1414 int     sender_verified_rc     = -1;
1415 uschar *sending_ip_address     = NULL;
1416 int     sending_port           = -1;
1417 SIGNAL_BOOL sigalrm_seen       = FALSE;
1418 const uschar *sigalarm_setter  = NULL;
1419 uschar **sighup_argv           = NULL;
1420 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1421 int     smtp_accept_count      = 0;
1422 int     smtp_accept_max        = 20;
1423 int     smtp_accept_max_nonmail= 10;
1424 uschar *smtp_accept_max_nonmail_hosts = US"*";
1425 int     smtp_accept_max_per_connection = 1000;
1426 uschar *smtp_accept_max_per_host = NULL;
1427 int     smtp_accept_queue      = 0;
1428 int     smtp_accept_queue_per_connection = 10;
1429 int     smtp_accept_reserve    = 0;
1430 uschar *smtp_active_hostname   = NULL;
1431 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1432                              "Exim $version_number $tod_full"
1433                              "\0<---------------Space to patch smtp_banner->";
1434 int     smtp_ch_index          = 0;
1435 uschar *smtp_cmd_argument      = NULL;
1436 uschar *smtp_cmd_buffer        = NULL;
1437 struct timeval smtp_connection_start  = {0,0};
1438 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1439 int     smtp_connect_backlog   = 20;
1440 double  smtp_delay_mail        = 0.0;
1441 double  smtp_delay_rcpt        = 0.0;
1442 FILE   *smtp_in                = NULL;
1443 int     smtp_load_reserve      = -1;
1444 int     smtp_mailcmd_count     = 0;
1445 FILE   *smtp_out               = NULL;
1446 uschar *smtp_etrn_command      = NULL;
1447 int     smtp_max_synprot_errors= 3;
1448 int     smtp_max_unknown_commands = 3;
1449 uschar *smtp_notquit_reason    = NULL;
1450 uschar *smtp_ratelimit_hosts   = NULL;
1451 uschar *smtp_ratelimit_mail    = NULL;
1452 uschar *smtp_ratelimit_rcpt    = NULL;
1453 uschar *smtp_read_error        = US"";
1454 int     smtp_receive_timeout   = 5*60;
1455 uschar *smtp_receive_timeout_s = NULL;
1456 uschar *smtp_reserve_hosts     = NULL;
1457 int     smtp_rlm_base          = 0;
1458 double  smtp_rlm_factor        = 0.0;
1459 int     smtp_rlm_limit         = 0;
1460 int     smtp_rlm_threshold     = INT_MAX;
1461 int     smtp_rlr_base          = 0;
1462 double  smtp_rlr_factor        = 0.0;
1463 int     smtp_rlr_limit         = 0;
1464 int     smtp_rlr_threshold     = INT_MAX;
1465 unsigned smtp_peer_options     = 0;
1466 unsigned smtp_peer_options_wrap= 0;
1467 #ifdef SUPPORT_I18N
1468 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1469 #endif
1470
1471 #ifdef WITH_CONTENT_SCAN
1472 uschar *spamd_address          = US"127.0.0.1 783";
1473 uschar *spam_bar               = NULL;
1474 uschar *spam_report            = NULL;
1475 uschar *spam_action            = NULL;
1476 uschar *spam_score             = NULL;
1477 uschar *spam_score_int         = NULL;
1478 #endif
1479 #ifdef SUPPORT_SPF
1480 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1481 uschar *spf_header_comment     = NULL;
1482 uschar *spf_received           = NULL;
1483 uschar *spf_result             = NULL;
1484 uschar *spf_smtp_comment       = NULL;
1485 #endif
1486
1487 FILE   *spool_data_file        = NULL;
1488 uschar *spool_directory        = US SPOOL_DIRECTORY
1489                            "\0<--------------Space to patch spool_directory->";
1490 #ifdef EXPERIMENTAL_SRS
1491 uschar *srs_config             = NULL;
1492 uschar *srs_db_address         = NULL;
1493 uschar *srs_db_key             = NULL;
1494 int     srs_hashlength         = 6;
1495 int     srs_hashmin            = -1;
1496 int     srs_maxage             = 31;
1497 uschar *srs_orig_recipient     = NULL;
1498 uschar *srs_orig_sender        = NULL;
1499 uschar *srs_recipient          = NULL;
1500 uschar *srs_secrets            = NULL;
1501 uschar *srs_status             = NULL;
1502 #endif
1503 #ifdef EXPERIMENTAL_SRS_NATIVE
1504 uschar *srs_recipient          = NULL;
1505 #endif
1506 int     string_datestamp_offset= -1;
1507 int     string_datestamp_length= 0;
1508 int     string_datestamp_type  = -1;
1509 uschar *submission_domain      = NULL;
1510 uschar *submission_name        = NULL;
1511 int     syslog_facility        = LOG_MAIL;
1512 uschar *syslog_processname     = US"exim";
1513 uschar *system_filter          = NULL;
1514
1515 uschar *system_filter_directory_transport = NULL;
1516 uschar *system_filter_file_transport = NULL;
1517 uschar *system_filter_pipe_transport = NULL;
1518 uschar *system_filter_reply_transport = NULL;
1519
1520 gid_t   system_filter_gid      = 0;
1521 uid_t   system_filter_uid      = (uid_t)-1;
1522
1523 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1524 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1525 #ifdef USE_TCP_WRAPPERS
1526 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1527 #endif
1528 int     test_harness_load_avg  = 0;
1529 int     thismessage_size_limit = 0;
1530 int     timeout_frozen_after   = 0;
1531 #ifdef MEASURE_TIMING
1532 struct timeval timestamp_startup;
1533 #endif
1534
1535 transport_instance  *transports = NULL;
1536
1537 transport_instance  transport_defaults = {
1538     .next =                     NULL,
1539     .name =                     NULL,
1540     .info =                     NULL,
1541     .options_block =            NULL,
1542     .driver_name =              NULL,
1543     .setup =                    NULL,
1544     .batch_max =                1,
1545     .batch_id =                 NULL,
1546     .home_dir =                 NULL,
1547     .current_dir =              NULL,
1548     .expand_multi_domain =      NULL,
1549     .multi_domain =             TRUE,
1550     .overrides_hosts =          FALSE,
1551     .max_addresses =            100,
1552     .connection_max_messages =  500,
1553     .deliver_as_creator =       FALSE,
1554     .disable_logging =          FALSE,
1555     .initgroups =               FALSE,
1556     .uid_set =                  FALSE,
1557     .gid_set =                  FALSE,
1558     .uid =                      (uid_t)(-1),
1559     .gid =                      (gid_t)(-1),
1560     .expand_uid =               NULL,
1561     .expand_gid =               NULL,
1562     .warn_message =             NULL,
1563     .shadow =                   NULL,
1564     .shadow_condition =         NULL,
1565     .filter_command =           NULL,
1566     .add_headers =              NULL,
1567     .remove_headers =           NULL,
1568     .return_path =              NULL,
1569     .debug_string =             NULL,
1570     .max_parallel =             NULL,
1571     .message_size_limit =       NULL,
1572     .headers_rewrite =          NULL,
1573     .rewrite_rules =            NULL,
1574     .rewrite_existflags =       0,
1575     .filter_timeout =           300,
1576     .body_only =                FALSE,
1577     .delivery_date_add =        FALSE,
1578     .envelope_to_add =          FALSE,
1579     .headers_only =             FALSE,
1580     .rcpt_include_affixes =     FALSE,
1581     .return_path_add =          FALSE,
1582     .return_output =            FALSE,
1583     .return_fail_output =       FALSE,
1584     .log_output =               FALSE,
1585     .log_fail_output =          FALSE,
1586     .log_defer_output =         FALSE,
1587     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1588                                                  1 nor 0 so can detect unset */
1589 #ifndef DISABLE_EVENT
1590    .event_action =              NULL
1591 #endif
1592 };
1593
1594 int     transport_count;
1595 uschar *transport_name          = NULL;
1596 int     transport_newlines;
1597 const uschar **transport_filter_argv  = NULL;
1598 int     transport_filter_timeout;
1599 int     transport_write_timeout= 0;
1600
1601 tree_node  *tree_dns_fails     = NULL;
1602 tree_node  *tree_duplicates    = NULL;
1603 tree_node  *tree_nonrecipients = NULL;
1604 tree_node  *tree_unusable      = NULL;
1605
1606 gid_t  *trusted_groups         = NULL;
1607 uid_t  *trusted_users          = NULL;
1608 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1609
1610 uschar *unknown_login          = NULL;
1611 uschar *unknown_username       = NULL;
1612 uschar *untrusted_set_sender   = NULL;
1613
1614 /*  A regex for matching a "From_" line in an incoming message, in the form
1615
1616     From ph10 Fri Jan  5 12:35 GMT 1996
1617
1618 which  the "mail" commands send to the MTA (undocumented, of course), or in
1619 the  form
1620
1621     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1622
1623 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1624 Because  of variations in time formats, just match up to the minutes. That
1625 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1626 so  just require one digit for hours and minutes. The weekday is also absent
1627 in  some forms. */
1628
1629 uschar *uucp_from_pattern      = US
1630    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1631    "(?:"                                          /* Non-extracting bracket */
1632    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1633    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1634    ")"                                            /* End alternation */
1635    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1636
1637 uschar *uucp_from_sender       = US"$1";
1638
1639 uschar *verify_mode            = NULL;
1640 uschar *version_copyright      =
1641  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1642    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1643 uschar *version_date           = US"?";
1644 uschar *version_cnumber        = US"????";
1645 uschar *version_string         = US"?";
1646
1647 uschar *warn_message_file      = NULL;
1648 int     warning_count          = 0;
1649 uschar *warnmsg_delay          = NULL;
1650 uschar *warnmsg_recipients     = NULL;
1651
1652
1653 /*  End of globals.c */