src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) The Exim Maintainers 2020 - 2024 */
   6 /* Copyright (c) University of Cambridge 1995 - 2018 */
   7 /* See the file NOTICE for conditions of use and distribution. */
   8 /* SPDX-License-Identifier: GPL-2.0-or-later */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* Generic options for auths, all of which live inside auth_instance
  17 data blocks and hence have the opt_public flag set. */
  18
  19 optionlist optionlist_auths[] = {
  20   { "client_condition", opt_stringptr | opt_public,
  21                  OPT_OFF(auth_instance, client_condition) },
  22   { "client_set_id", opt_stringptr | opt_public,
  23                  OPT_OFF(auth_instance, set_client_id) },
  24   { "driver",        opt_stringptr | opt_public,
  25                  OPT_OFF(auth_instance, drinst.driver_name) },
  26   { "public_name",   opt_stringptr | opt_public,
  27                  OPT_OFF(auth_instance, public_name) },
  28   { "server_advertise_condition", opt_stringptr | opt_public,
  29                  OPT_OFF(auth_instance, advertise_condition)},
  30   { "server_condition", opt_stringptr | opt_public,
  31                  OPT_OFF(auth_instance, server_condition) },
  32   { "server_debug_print", opt_stringptr | opt_public,
  33                  OPT_OFF(auth_instance, server_debug_string) },
  34   { "server_mail_auth_condition", opt_stringptr | opt_public,
  35                  OPT_OFF(auth_instance, mail_auth_condition) },
  36   { "server_set_id", opt_stringptr | opt_public,
  37                  OPT_OFF(auth_instance, set_id) }
  38 };
  39
  40 int     optionlist_auths_size = nelem(optionlist_auths);
  41
  42 /* An empty host aliases list. */
  43
  44 uschar *no_aliases             = NULL;
  45
  46
  47 /* For comments on these variables, see globals.h. I'm too idle to
  48 duplicate them here... */
  49
  50 #ifdef EXIM_PERL
  51 uschar *opt_perl_startup       = NULL;
  52 BOOL    opt_perl_at_start      = FALSE;
  53 BOOL    opt_perl_started       = FALSE;
  54 BOOL    opt_perl_taintmode     = FALSE;
  55 #endif
  56
  57 #ifdef EXPAND_DLFUNC
  58 tree_node *dlobj_anchor        = NULL;
  59 #endif
  60
  61 #ifdef LOOKUP_IBASE
  62 uschar *ibase_servers          = NULL;
  63 #endif
  64
  65 #ifdef LOOKUP_LDAP
  66 uschar *eldap_ca_cert_dir      = NULL;
  67 uschar *eldap_ca_cert_file     = NULL;
  68 uschar *eldap_cert_file        = NULL;
  69 uschar *eldap_cert_key         = NULL;
  70 uschar *eldap_cipher_suite     = NULL;
  71 uschar *eldap_default_servers  = NULL;
  72 uschar *eldap_require_cert     = NULL;
  73 int     eldap_version          = -1;
  74 BOOL    eldap_start_tls        = FALSE;
  75 #endif
  76
  77 #ifdef LOOKUP_MYSQL
  78 uschar *mysql_servers          = NULL;
  79 #endif
  80
  81 #ifdef LOOKUP_ORACLE
  82 uschar *oracle_servers         = NULL;
  83 #endif
  84
  85 #ifdef LOOKUP_PGSQL
  86 uschar *pgsql_servers          = NULL;
  87 #endif
  88
  89 #ifdef LOOKUP_REDIS
  90 uschar *redis_servers          = NULL;
  91 #endif
  92
  93 #ifdef LOOKUP_SQLITE
  94 uschar *sqlite_dbfile          = NULL;
  95 int     sqlite_lock_timeout    = 5;
  96 #endif
  97
  98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  99 BOOL    move_frozen_messages   = FALSE;
 100 #endif
 101
 102 /* These variables are outside the #ifdef because it keeps the code less
 103 cluttered in several places (e.g. during logging) if we can always refer to
 104 them. Also, the tls_ variables are now always visible.  Note that these are
 105 only used for smtp connections, not for service-daemon access. */
 106
 107 tls_support tls_in = {
 108  .active =              {.sock = -1}
 109  /* all other elements zero */
 110 };
 111 tls_support tls_out = {
 112  .active =              {.sock = -1},
 113  /* all other elements zero */
 114 };
 115
 116 uschar *dsn_envid              = NULL;
 117 int     dsn_ret                = 0;
 118 const pcre2_code  *regex_DSN         = NULL;
 119 uschar *dsn_advertise_hosts    = NULL;
 120
 121 #ifndef DISABLE_TLS
 122 BOOL    gnutls_compat_mode     = FALSE;
 123 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 124 uschar *hosts_require_alpn     = NULL;
 125 uschar *openssl_options        = NULL;
 126 const pcre2_code *regex_STARTTLS     = NULL;
 127 uschar *tls_advertise_hosts    = US"*";
 128 uschar *tls_alpn               = US"smtp:esmtp";
 129 uschar *tls_certificate        = NULL;
 130 uschar *tls_crl                = NULL;
 131 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 132 that's the interop problem which has been observed: GnuTLS suggesting a higher
 133 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 134 int     tls_dh_max_bits        = 2236;
 135 uschar *tls_dhparam            = NULL;
 136 uschar *tls_eccurve            = US"auto";
 137 # ifndef DISABLE_OCSP
 138 uschar *tls_ocsp_file          = NULL;
 139 # endif
 140 uschar *tls_privatekey         = NULL;
 141 BOOL    tls_remember_esmtp     = FALSE;
 142 uschar *tls_require_ciphers    = NULL;
 143 # ifndef DISABLE_TLS_RESUME
 144 uschar *tls_resumption_hosts   = NULL;
 145 # endif
 146 uschar *tls_try_verify_hosts   = NULL;
 147 uschar *tls_verify_certificates= US"system";
 148 uschar *tls_verify_hosts       = NULL;
 149 int     tls_watch_fd           = -1;
 150 time_t  tls_watch_trigger_time = (time_t)0;
 151 #else   /*DISABLE_TLS*/
 152 uschar *tls_advertise_hosts    = NULL;
 153 #endif
 154
 155 #ifndef DISABLE_PRDR
 156 /* Per Recipient Data Response variables */
 157 BOOL    prdr_enable            = FALSE;
 158 BOOL    prdr_requested         = FALSE;
 159 const pcre2_code *regex_PRDR         = NULL;
 160 #endif
 161
 162 #ifdef SUPPORT_I18N
 163 const pcre2_code *regex_UTF8         = NULL;
 164 #endif
 165
 166 /* Input-reading functions for messages, so we can use special ones for
 167 incoming TCP/IP. The defaults use stdin. We never need these for any
 168 stand-alone tests. */
 169
 170 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 171 int     (*lwr_receive_getc)(unsigned)   = stdin_getc;
 172 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 173 int     (*lwr_receive_ungetc)(int)      = stdin_ungetc;
 174 BOOL    (*lwr_receive_hasc)(void)       = stdin_hasc;
 175
 176 int     (*receive_getc)(unsigned)       = stdin_getc;
 177 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 178 void    (*receive_get_cache)(unsigned)  = NULL;
 179 BOOL    (*receive_hasc)(void)           = stdin_hasc;
 180 int     (*receive_ungetc)(int)          = stdin_ungetc;
 181 int     (*receive_feof)(void)           = stdin_feof;
 182 int     (*receive_ferror)(void)         = stdin_ferror;
 183 #endif
 184
 185
 186 /* List of per-address expansion variables for clearing and saving/restoring
 187 when verifying one address while routing/verifying another. We have to have
 188 the size explicit, because it is referenced from more than one module. */
 189
 190 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 191   CUSS &deliver_address_data,
 192   CUSS &deliver_domain,
 193   CUSS &deliver_domain_data,
 194   CUSS &deliver_domain_orig,
 195   CUSS &deliver_domain_parent,
 196   CUSS &deliver_localpart,
 197   CUSS &deliver_localpart_data,
 198   CUSS &deliver_localpart_orig,
 199   CUSS &deliver_localpart_parent,
 200   CUSS &deliver_localpart_prefix,
 201   CUSS &deliver_localpart_suffix,
 202   CUSS (uschar **)(&deliver_recipients),
 203   CUSS &deliver_host,
 204   CUSS &deliver_home,
 205   CUSS &address_file,
 206   CUSS &address_pipe,
 207   CUSS &self_hostname,
 208   NULL };
 209
 210 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 211
 212 /******************************************************************************/
 213 /* General global variables.  Boolean flags are done as a group
 214 so that only one bit each is needed, packed, for all those we never
 215 need to take a pointer - and only a char for the rest.
 216 This means a struct, unfortunately since it clutters the sourcecode. */
 217
 218 struct global_flags f =
 219 {
 220         .acl_temp_details       = FALSE,
 221         .active_local_from_check = FALSE,
 222         .active_local_sender_retain = FALSE,
 223         .address_test_mode      = FALSE,
 224         .admin_user             = FALSE,
 225         .allow_auth_unadvertised= FALSE,
 226         .allow_unqualified_recipient = TRUE,    /* For local messages */
 227         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 228         .authentication_local   = FALSE,
 229
 230         .background_daemon      = TRUE,
 231         .bdat_readers_wanted    = FALSE,
 232
 233         .chunking_offered       = FALSE,
 234         .config_changed         = FALSE,
 235         .continue_more          = FALSE,
 236
 237         .daemon_listen          = FALSE,
 238         .daemon_scion           = FALSE,
 239         .debug_daemon           = FALSE,
 240         .deliver_firsttime      = FALSE,
 241         .deliver_force          = FALSE,
 242         .deliver_freeze         = FALSE,
 243         .deliver_force_thaw     = FALSE,
 244         .deliver_manual_thaw    = FALSE,
 245         .deliver_selectstring_regex = FALSE,
 246         .deliver_selectstring_sender_regex = FALSE,
 247         .disable_callout_flush  = FALSE,
 248         .disable_delay_flush    = FALSE,
 249         .disable_logging        = FALSE,
 250 #ifndef DISABLE_DKIM
 251         .dkim_disable_verify      = FALSE,
 252         .dkim_init_done           = FALSE,
 253 #endif
 254 #ifdef SUPPORT_DMARC
 255         .dmarc_has_been_checked  = FALSE,
 256         .dmarc_disable_verify    = FALSE,
 257         .dmarc_enable_forensic   = FALSE,
 258 #endif
 259         .dont_deliver           = FALSE,
 260         .dot_ends               = TRUE,
 261
 262         .enable_dollar_recipients = FALSE,
 263         .expand_string_forcedfail = FALSE,
 264
 265         .filter_running         = FALSE,
 266
 267         .header_rewritten       = FALSE,
 268         .helo_verified          = FALSE,
 269         .helo_verify_failed     = FALSE,
 270         .host_checking_callout  = FALSE,
 271         .host_find_failed_syntax= FALSE,
 272
 273         .inetd_wait_mode        = FALSE,
 274         .is_inetd               = FALSE,
 275
 276         .local_error_message    = FALSE,
 277         .log_testing_mode       = FALSE,
 278
 279 #ifdef WITH_CONTENT_SCAN
 280         .no_mbox_unspool        = FALSE,
 281 #endif
 282         .no_multiline_responses = FALSE,
 283         .notifier_socket_en     = TRUE,
 284
 285         .parse_allow_group      = FALSE,
 286         .parse_found_group      = FALSE,
 287         .pipelining_enable      = TRUE,
 288 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 289         .proxy_session_failed   = FALSE,
 290 #endif
 291
 292         .queue_2stage           = FALSE,
 293         .queue_only_policy      = FALSE,
 294         .queue_run_local        = FALSE,
 295         .queue_running          = FALSE,
 296         .queue_smtp             = FALSE,
 297
 298         .really_exim            = TRUE,
 299         .receive_call_bombout   = FALSE,
 300         .recipients_discarded   = FALSE,
 301         .running_in_test_harness = FALSE,
 302
 303         .search_find_defer      = FALSE,
 304         .sender_address_forced  = FALSE,
 305         .sender_host_notsocket  = FALSE,
 306         .sender_host_unknown    = FALSE,
 307         .sender_local           = FALSE,
 308         .sender_name_forced     = FALSE,
 309         .sender_set_untrusted   = FALSE,
 310         .smtp_authenticated     = FALSE,
 311 #ifndef DISABLE_PIPE_CONNECT
 312         .smtp_in_early_pipe_advertised = FALSE,
 313         .smtp_in_early_pipe_no_auth = FALSE,
 314         .smtp_in_early_pipe_used = FALSE,
 315 #endif
 316         .smtp_in_pipelining_advertised = FALSE,
 317         .smtp_in_pipelining_used = FALSE,
 318         .smtp_in_quit           = FALSE,
 319         .spool_file_wireformat  = FALSE,
 320         .submission_mode        = FALSE,
 321         .suppress_local_fixups  = FALSE,
 322         .suppress_local_fixups_default = FALSE,
 323         .synchronous_delivery   = FALSE,
 324         .system_filtering       = FALSE,
 325
 326         .taint_check_slow       = FALSE,
 327         .testsuite_delays       = TRUE,
 328         .tcp_fastopen_ok        = FALSE,
 329         .tcp_in_fastopen        = FALSE,
 330         .tcp_in_fastopen_data   = FALSE,
 331         .tcp_in_fastopen_logged = FALSE,
 332         .tcp_out_fastopen_logged= FALSE,
 333         .timestamps_utc         = FALSE,
 334         .transport_filter_timed_out = FALSE,
 335         .trusted_caller         = FALSE,
 336         .trusted_config         = TRUE,
 337 };
 338
 339 /******************************************************************************/
 340 /* These are the flags which are either variables or mainsection options,
 341 so an address is needed for access, or are exported to local_scan. */
 342
 343 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 344 BOOL    allow_domain_literals  = FALSE;
 345 BOOL    allow_mx_to_ip         = FALSE;
 346 BOOL    allow_utf8_domains     = FALSE;
 347 BOOL    authentication_failed  = FALSE;
 348
 349 BOOL    bounce_return_body     = TRUE;
 350 BOOL    bounce_return_message  = TRUE;
 351 BOOL    check_rfc2047_length   = TRUE;
 352 BOOL    commandline_checks_require_admin = FALSE;
 353
 354 #ifdef EXPERIMENTAL_DCC
 355 BOOL    dcc_direct_add_header  = FALSE;
 356 #endif
 357 BOOL    debug_store            = FALSE;
 358 BOOL    delivery_date_remove   = TRUE;
 359 BOOL    deliver_drop_privilege = FALSE;
 360 #ifdef ENABLE_DISABLE_FSYNC
 361 BOOL    disable_fsync          = FALSE;
 362 #endif
 363 BOOL    disable_ipv6           = FALSE;
 364 BOOL    dns_csa_use_reverse    = TRUE;
 365 BOOL    drop_cr                = FALSE;         /* No longer used */
 366
 367 BOOL    envelope_to_remove     = TRUE;
 368 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 369 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 370 BOOL    extract_addresses_remove_arguments = TRUE;
 371
 372 BOOL    host_checking          = FALSE;
 373 BOOL    host_lookup_deferred   = FALSE;
 374 BOOL    host_lookup_failed     = FALSE;
 375 BOOL    ignore_fromline_local  = FALSE;
 376
 377 BOOL    local_from_check       = TRUE;
 378 BOOL    local_sender_retain    = FALSE;
 379 BOOL    log_timezone           = FALSE;
 380 BOOL    message_body_newlines  = FALSE;
 381 BOOL    message_logs           = TRUE;
 382 #ifdef SUPPORT_I18N
 383 BOOL    message_smtputf8       = FALSE;
 384 #endif
 385 BOOL    mua_wrapper            = FALSE;
 386
 387 BOOL    preserve_message_logs  = FALSE;
 388 BOOL    print_topbitchars      = FALSE;
 389 BOOL    prod_requires_admin    = TRUE;
 390 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMENTAL_XCLIENT)
 391 BOOL    proxy_session          = FALSE;
 392 #endif
 393
 394 #ifndef DISABLE_QUEUE_RAMP
 395 BOOL    queue_fast_ramp         = TRUE;
 396 #endif
 397 BOOL    queue_list_requires_admin = TRUE;
 398 BOOL    queue_only             = FALSE;
 399 BOOL    queue_only_load_latch  = TRUE;
 400 BOOL    queue_only_override    = TRUE;
 401 BOOL    queue_run_in_order     = FALSE;
 402 BOOL    recipients_max_reject  = FALSE;
 403 BOOL    return_path_remove     = TRUE;
 404
 405 BOOL    smtp_batched_input     = FALSE;
 406 BOOL    sender_helo_dnssec     = FALSE;
 407 BOOL    sender_host_dnssec     = FALSE;
 408 BOOL    smtp_accept_keepalive  = TRUE;
 409 BOOL    smtp_check_spool_space = TRUE;
 410 BOOL    smtp_enforce_sync      = TRUE;
 411 BOOL    smtp_etrn_serialize    = TRUE;
 412 BOOL    smtp_input             = FALSE;
 413 BOOL    smtp_return_error_details = FALSE;
 414 BOOL    split_spool_directory  = FALSE;
 415 BOOL    spool_wireformat       = FALSE;
 416 BOOL    strict_acl_vars        = FALSE;
 417 BOOL    strip_excess_angle_brackets = FALSE;
 418 BOOL    strip_trailing_dot     = FALSE;
 419 BOOL    syslog_duplication     = TRUE;
 420 BOOL    syslog_pid             = TRUE;
 421 BOOL    syslog_timestamp       = TRUE;
 422 BOOL    system_filter_gid_set  = FALSE;
 423 BOOL    system_filter_uid_set  = FALSE;
 424
 425 BOOL    tcp_nodelay            = TRUE;
 426 BOOL    write_rejectlog        = TRUE;
 427
 428 /******************************************************************************/
 429
 430 header_line *acl_added_headers = NULL;
 431 tree_node *acl_anchor          = NULL;
 432 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 433                                   NULL, NULL, NULL, NULL};
 434 int     acl_narg               = 0;
 435
 436 int     acl_level              = 0;
 437
 438 uschar *acl_not_smtp           = NULL;
 439 #ifdef WITH_CONTENT_SCAN
 440 uschar *acl_not_smtp_mime      = NULL;
 441 #endif
 442 uschar *acl_not_smtp_start     = NULL;
 443 uschar *acl_removed_headers    = NULL;
 444 uschar *acl_smtp_auth          = NULL;
 445 uschar *acl_smtp_connect       = NULL;
 446 uschar *acl_smtp_data          = NULL;
 447 #ifndef DISABLE_PRDR
 448 uschar *acl_smtp_data_prdr     = US"accept";
 449 #endif
 450 #ifndef DISABLE_DKIM
 451 uschar *acl_smtp_dkim          = NULL;
 452 #endif
 453 uschar *acl_smtp_etrn          = NULL;
 454 uschar *acl_smtp_expn          = NULL;
 455 uschar *acl_smtp_helo          = NULL;
 456 uschar *acl_smtp_mail          = NULL;
 457 uschar *acl_smtp_mailauth      = NULL;
 458 #ifdef WITH_CONTENT_SCAN
 459 uschar *acl_smtp_mime          = NULL;
 460 #endif
 461 uschar *acl_smtp_notquit       = NULL;
 462 uschar *acl_smtp_predata       = NULL;
 463 uschar *acl_smtp_quit          = NULL;
 464 uschar *acl_smtp_rcpt          = NULL;
 465 uschar *acl_smtp_starttls      = NULL;
 466 uschar *acl_smtp_vrfy          = NULL;
 467 #ifndef DISABLE_WELLKNOWN
 468 uschar *acl_smtp_wellknown     = NULL;
 469 #endif
 470
 471 tree_node *acl_var_c           = NULL;
 472 tree_node *acl_var_m           = NULL;
 473 uschar *acl_verify_message     = NULL;
 474 string_item *acl_warn_logged   = NULL;
 475
 476 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 477 error codes (only those used) */
 478
 479 uschar *acl_wherenames[]       = { [ACL_WHERE_RCPT] =           US"RCPT",
 480                                    [ACL_WHERE_MAIL] =           US"MAIL",
 481                                    [ACL_WHERE_PREDATA] =        US"PREDATA",
 482                                    [ACL_WHERE_MIME] =           US"MIME",
 483                                    [ACL_WHERE_DKIM] =           US"DKIM",
 484                                    [ACL_WHERE_DATA] =           US"DATA",
 485 #ifndef DISABLE_PRDR
 486                                    [ACL_WHERE_PRDR] =           US"PRDR",
 487 #endif
 488                                    [ACL_WHERE_NOTSMTP] =        US"non-SMTP",
 489                                    [ACL_WHERE_AUTH] =           US"AUTH",
 490                                    [ACL_WHERE_CONNECT] =        US"connection",
 491                                    [ACL_WHERE_ETRN] =           US"ETRN",
 492                                    [ACL_WHERE_EXPN] =           US"EXPN",
 493                                    [ACL_WHERE_HELO] =           US"EHLO or HELO",
 494                                    [ACL_WHERE_MAILAUTH] =       US"MAILAUTH",
 495                                    [ACL_WHERE_NOTSMTP_START] =  US"non-SMTP-start",
 496                                    [ACL_WHERE_NOTQUIT] =        US"NOTQUIT",
 497                                    [ACL_WHERE_QUIT] =           US"QUIT",
 498                                    [ACL_WHERE_STARTTLS] =       US"STARTTLS",
 499                                    [ACL_WHERE_VRFY] =           US"VRFY",
 500 #ifndef DISABLE_WELLKNOWN
 501                                    [ACL_WHERE_WELLKNOWN] =      US"WELLKNOWN",
 502 #endif
 503                                    [ACL_WHERE_DELIVERY] =       US"delivery",
 504                                    [ACL_WHERE_UNKNOWN] =        US"unknown"
 505                                  };
 506
 507 uschar *acl_wherecodes[]       = { [ACL_WHERE_RCPT] =   US"550",
 508                                    [ACL_WHERE_MAIL] =   US"550",
 509                                    [ACL_WHERE_PREDATA] = US"550",
 510                                    [ACL_WHERE_MIME] =   US"550",
 511                                    [ACL_WHERE_DKIM] =   US"550",
 512                                    [ACL_WHERE_DATA] =   US"550",
 513 #ifndef DISABLE_PRDR
 514                                    [ACL_WHERE_PRDR] =   US"550",
 515 #endif
 516                                    [ACL_WHERE_AUTH] =   US"503",
 517                                    [ACL_WHERE_CONNECT] = US"550",
 518                                    [ACL_WHERE_ETRN] =   US"458",
 519                                    [ACL_WHERE_EXPN] =   US"550",
 520                                    [ACL_WHERE_HELO] =   US"550",
 521                                    [ACL_WHERE_STARTTLS] = US"550",
 522 #ifndef DISABLE_WELLKNOWN
 523                                    [ACL_WHERE_WELLKNOWN] =US"550",
 524 #endif
 525                                    [ACL_WHERE_VRFY] =   US"252",
 526                                  };
 527
 528 uschar *add_environment        = NULL;
 529 address_item  *addr_duplicate  = NULL;
 530
 531 address_item address_defaults = {
 532   .next =               NULL,
 533   .parent =             NULL,
 534   .first =              NULL,
 535   .dupof =              NULL,
 536   .start_router =       NULL,
 537   .router =             NULL,
 538   .transport =          NULL,
 539   .host_list =          NULL,
 540   .host_used =          NULL,
 541   .fallback_hosts =     NULL,
 542   .reply =              NULL,
 543   .retries =            NULL,
 544   .address =            NULL,
 545   .unique =             NULL,
 546   .cc_local_part =      NULL,
 547   .lc_local_part =      NULL,
 548   .local_part =         NULL,
 549   .prefix =             NULL,
 550   .prefix_v =           NULL,
 551   .suffix =             NULL,
 552   .suffix_v =           NULL,
 553   .domain =             NULL,
 554   .address_retry_key =  NULL,
 555   .domain_retry_key =   NULL,
 556   .current_dir =        NULL,
 557   .home_dir =           NULL,
 558   .message =            NULL,
 559   .user_message =       NULL,
 560   .onetime_parent =     NULL,
 561   .pipe_expandn =       NULL,
 562   .return_filename =    NULL,
 563   .self_hostname =      NULL,
 564   .shadow_message =     NULL,
 565 #ifndef DISABLE_TLS
 566   .cipher =             NULL,
 567   .ourcert =            NULL,
 568   .peercert =           NULL,
 569   .peerdn =             NULL,
 570   .ocsp =               OCSP_NOT_REQ,
 571 #endif
 572 #ifdef EXPERIMENTAL_DSN_INFO
 573   .smtp_greeting =      NULL,
 574   .helo_response =      NULL,
 575 #endif
 576   .authenticator =      NULL,
 577   .auth_id =            NULL,
 578   .auth_sndr =          NULL,
 579   .dsn_orcpt =          NULL,
 580   .dsn_flags =          0,
 581   .dsn_aware =          0,
 582   .uid =                (uid_t)(-1),
 583   .gid =                (gid_t)(-1),
 584   .flags =              { 0 },
 585   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 586   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 587   .mode =               -1,
 588   .more_errno =         0,
 589   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 590   .basic_errno =        ERRNO_UNKNOWNERROR,
 591   .child_count =        0,
 592   .return_file =        -1,
 593   .special_action =     SPECIAL_NONE,
 594   .transport_return =   DEFER,
 595   .prop = {                                     /* fields that are propagated to children */
 596     .address_data =     NULL,
 597     .domain_data =      NULL,
 598     .localpart_data =   NULL,
 599     .errors_address =   NULL,
 600     .extra_headers =    NULL,
 601     .remove_headers =   NULL,
 602     .variables =        NULL,
 603     .ignore_error =     FALSE,
 604 #ifdef SUPPORT_I18N
 605     .utf8_msg =         FALSE,
 606     .utf8_downcvt =     FALSE,
 607     .utf8_downcvt_maybe = FALSE
 608 #endif
 609   }
 610 };
 611
 612 const uschar *address_file           = NULL;
 613 const uschar *address_pipe           = NULL;
 614 tree_node *addresslist_anchor  = NULL;
 615 int     addresslist_count      = 0;
 616 gid_t  *admin_groups           = NULL;
 617
 618 #ifdef EXPERIMENTAL_ARC
 619 struct arc_set *arc_received    = NULL;
 620 int     arc_received_instance   = 0;
 621 int     arc_oldest_pass         = 0;
 622 const uschar *arc_state         = NULL;
 623 const uschar *arc_state_reason  = NULL;
 624 #endif
 625
 626 uschar *authenticated_fail_id  = NULL;
 627 uschar *authenticated_id       = NULL;
 628 uschar *authenticated_sender   = NULL;
 629 auth_instance  *auths          = NULL;
 630 uschar *auth_advertise_hosts   = US"*";
 631 auth_instance auth_defaults    = {
 632     .drinst = {
 633       .next =           NULL,
 634       .name =           NULL,
 635       .info =           NULL,
 636       .options_block =  NULL,
 637       .driver_name =    NULL,
 638     },
 639     .advertise_condition = NULL,
 640     .client_condition = NULL,
 641     .public_name =      NULL,
 642     .set_id =           NULL,
 643     .set_client_id =    NULL,
 644     .mail_auth_condition = NULL,
 645     .server_debug_string = NULL,
 646     .server_condition = NULL,
 647     .client =           FALSE,
 648     .server =           FALSE,
 649     .advertised =       FALSE
 650 };
 651
 652 uschar *auth_defer_msg         = US"reason not recorded";
 653 uschar *auth_defer_user_msg    = US"";
 654 const uschar *auth_vars[AUTH_VARS];
 655 uschar *authenticator_name     = NULL;
 656 int     auto_thaw              = 0;
 657 #ifdef WITH_CONTENT_SCAN
 658 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 659 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 660 #endif
 661
 662 #if BASE_62 == 62
 663 uschar *base62_chars=
 664     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 665 #else
 666 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 667 #endif
 668
 669 uschar *bi_command             = NULL;
 670 uschar *big_buffer             = NULL;
 671 int     big_buffer_size        = BIG_BUFFER_SIZE;
 672 #ifdef EXPERIMENTAL_BRIGHTMAIL
 673 uschar *bmi_alt_location       = NULL;
 674 uschar *bmi_base64_tracker_verdict = NULL;
 675 uschar *bmi_base64_verdict     = NULL;
 676 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 677 int     bmi_deliver            = 1;
 678 int     bmi_run                = 0;
 679 uschar *bmi_verdicts           = NULL;
 680 #endif
 681 int     bsmtp_transaction_linecount = 0;
 682 int     body_8bitmime          = 0;
 683 int     body_linecount         = 0;
 684 int     body_zerocount         = 0;
 685 uschar *bounce_message_file    = NULL;
 686 uschar *bounce_message_text    = NULL;
 687 const uschar *bounce_recipient = NULL;
 688 int     bounce_return_linesize_limit = 998;
 689 int     bounce_return_size_limit = 100*1024;
 690 uschar *bounce_sender_authentication = NULL;
 691
 692 uschar *callout_address        = NULL;
 693 int     callout_cache_domain_positive_expire = 7*24*60*60;
 694 int     callout_cache_domain_negative_expire = 3*60*60;
 695 int     callout_cache_positive_expire = 24*60*60;
 696 int     callout_cache_negative_expire = 2*60*60;
 697 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 698 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 699 int     check_log_inodes       = 100;
 700 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 701 int     check_spool_inodes     = 100;
 702 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 703
 704 uschar *chunking_advertise_hosts = US"*";
 705 unsigned chunking_datasize     = 0;
 706 unsigned chunking_data_left    = 0;
 707 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 708 const pcre2_code *regex_CHUNKING     = NULL;
 709
 710 #ifndef DISABLE_ESMTP_LIMITS
 711 const pcre2_code *regex_LIMITS        = NULL;
 712 #endif
 713
 714 uschar *client_authenticator   = NULL;
 715 uschar *client_authenticated_id = NULL;
 716 uschar *client_authenticated_sender = NULL;
 717 #ifndef DISABLE_CLIENT_CMD_LOG
 718 gstring *client_cmd_log        = NULL;
 719 #endif
 720 int     clmacro_count          = 0;
 721 uschar *clmacros[MAX_CLMACROS];
 722 FILE   *config_file            = NULL;
 723 const uschar *config_filename  = NULL;
 724 int     config_lineno          = 0;
 725 #ifdef CONFIGURE_GROUP
 726 gid_t   config_gid             = CONFIGURE_GROUP;
 727 #else
 728 gid_t   config_gid             = 0;
 729 #endif
 730 const uschar * config_main_filelist = US CONFIGURE_FILE
 731                          "\0<-----------Space to patch configure_filename->";
 732 uschar *config_main_filename   = NULL;
 733 uschar *config_main_directory  = NULL;
 734
 735 #ifdef CONFIGURE_OWNER
 736 uid_t   config_uid             = CONFIGURE_OWNER;
 737 #else
 738 uid_t   config_uid             = 0;
 739 #endif
 740
 741 const uschar *connection_id    = NULL;
 742 int     connection_max_messages= -1;
 743 unsigned continue_flags        = 0;
 744 #ifndef DISABLE_ESMTP_LIMITS
 745 unsigned continue_limit_mail   = 0;
 746 unsigned continue_limit_rcpt   = 0;
 747 unsigned continue_limit_rcptdom= 0;
 748 int     continue_fd            = -1;
 749 uschar *continue_proxy_cipher  = NULL;
 750 BOOL    continue_proxy_dane    = FALSE;
 751 uschar *continue_proxy_sni     = NULL;
 752 const uschar *continue_hostname      = NULL;
 753 const uschar *continue_host_address  = NULL;
 754 uschar  continue_next_id[MESSAGE_ID_LENGTH +1] = {[0]='\0'};
 755 int     continue_sequence      = 1;
 756 const uschar *continue_transport = NULL;
 757 #ifndef COMPILE_UTILITY
 758 open_db *continue_retry_db     = NULL;
 759 open_db *continue_wait_db      = NULL;
 760 #endif
 761 #endif
 762
 763 uschar *csa_status             = NULL;
 764 cut_t   cutthrough = {
 765   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 766   .delivery =           FALSE,                          /* when to attempt */
 767   .defer_pass =         FALSE,                          /* on defer: spool locally */
 768   .is_tls =             FALSE,                          /* not a TLS conn yet */
 769   .cctx =               {.sock = -1},                   /* open connection */
 770   .nrcpt =              0,                              /* number of addresses */
 771 };
 772
 773 int     daemon_notifier_fd     = -1;
 774 uschar *daemon_smtp_port       = US"smtp";
 775 int     daemon_startup_retries = 9;
 776 int     daemon_startup_sleep   = 30;
 777
 778 #ifdef EXPERIMENTAL_DCC
 779 uschar *dcc_header             = NULL;
 780 uschar *dcc_result             = NULL;
 781 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 782 uschar *dccifd_options         = US"header";
 783 #endif
 784
 785 int     debug_fd               = -1;
 786 FILE   *debug_file             = NULL;
 787 int     debug_notall[]         = {
 788   Di_memory,
 789   Di_noutf8,
 790   -1
 791 };
 792 bit_table debug_options[]      = { /* must be in alphabetical order and use
 793                                  only the enum values from macro.h */
 794   BIT_TABLE(D, acl),
 795   BIT_TABLE(D, all),
 796   BIT_TABLE(D, auth),
 797   BIT_TABLE(D, deliver),
 798   BIT_TABLE(D, dns),
 799   BIT_TABLE(D, dnsbl),
 800   BIT_TABLE(D, exec),
 801   BIT_TABLE(D, expand),
 802   BIT_TABLE(D, filter),
 803   BIT_TABLE(D, hints_lookup),
 804   BIT_TABLE(D, host_lookup),
 805   BIT_TABLE(D, ident),
 806   BIT_TABLE(D, interface),
 807   BIT_TABLE(D, lists),
 808   BIT_TABLE(D, load),
 809   BIT_TABLE(D, local_scan),
 810   BIT_TABLE(D, lookup),
 811   BIT_TABLE(D, memory),
 812   BIT_TABLE(D, noutf8),
 813   BIT_TABLE(D, pid),
 814   BIT_TABLE(D, process_info),
 815   BIT_TABLE(D, queue_run),
 816   BIT_TABLE(D, receive),
 817   BIT_TABLE(D, resolver),
 818   BIT_TABLE(D, retry),
 819   BIT_TABLE(D, rewrite),
 820   BIT_TABLE(D, route),
 821   BIT_TABLE(D, timestamp),
 822   BIT_TABLE(D, tls),
 823   BIT_TABLE(D, transport),
 824   BIT_TABLE(D, uid),
 825   BIT_TABLE(D, verify),
 826 };
 827 int      debug_options_count    = nelem(debug_options);
 828 uschar   debuglog_name[LOG_NAME_SIZE] = {0};
 829 unsigned debug_pretrigger_bsize = 0;
 830 uschar * debug_pretrigger_buf   = NULL;
 831 unsigned int debug_selector     = 0;
 832
 833 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 834 uschar *delay_warning_condition=
 835   US"${if or {"
 836             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 837             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 838             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 839             "} {no}{yes}}";
 840 uschar *deliver_address_data   = NULL;
 841 int     deliver_datafile       = -1;
 842 const uschar *deliver_domain   = NULL;
 843 uschar *deliver_domain_data    = NULL;
 844 const uschar *deliver_domain_orig = NULL;
 845 const uschar *deliver_domain_parent = NULL;
 846 time_t  deliver_frozen_at      = 0;
 847 uschar *deliver_home           = NULL;
 848 const uschar *deliver_host     = NULL;
 849 const uschar *deliver_host_address = NULL;
 850 int     deliver_host_port      = 0;
 851 uschar *deliver_in_buffer      = NULL;
 852 ino_t   deliver_inode          = 0;
 853 const uschar *deliver_localpart= NULL;
 854 uschar *deliver_localpart_data = NULL;
 855 const uschar *deliver_localpart_orig = NULL;
 856 const uschar *deliver_localpart_parent = NULL;
 857 const uschar *deliver_localpart_prefix = NULL;
 858 const uschar *deliver_localpart_prefix_v = NULL;
 859 const uschar *deliver_localpart_suffix = NULL;
 860 const uschar *deliver_localpart_suffix_v = NULL;
 861 uschar *deliver_out_buffer     = NULL;
 862 int     deliver_queue_load_max = -1;
 863 address_item  *deliver_recipients = NULL;
 864 uschar *deliver_selectstring   = NULL;
 865 uschar *deliver_selectstring_sender = NULL;
 866
 867 #ifndef DISABLE_DKIM
 868 unsigned dkim_collect_input      = 0;
 869 uschar *dkim_cur_signer          = NULL;
 870 int     dkim_key_length          = 0;
 871 void   *dkim_signatures          = NULL;
 872 uschar *dkim_signers             = NULL;
 873 uschar *dkim_signing_domain      = NULL;
 874 uschar *dkim_signing_selector    = NULL;
 875 gstring *dkim_signing_record     = NULL;
 876 uschar *dkim_verify_hashes       = US"sha256:sha512";
 877 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 878 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
 879 BOOL    dkim_verify_minimal      = FALSE;
 880 uschar *dkim_verify_overall      = NULL;
 881 uschar *dkim_verify_signers      = US"$dkim_signers";
 882 uschar *dkim_verify_status       = NULL;
 883 uschar *dkim_verify_reason       = NULL;
 884 #endif
 885 #ifdef SUPPORT_DMARC
 886 uschar *dmarc_domain_policy     = NULL;
 887 uschar *dmarc_forensic_sender   = NULL;
 888 uschar *dmarc_history_file      = NULL;
 889 uschar *dmarc_status            = NULL;
 890 uschar *dmarc_status_text       = NULL;
 891 uschar *dmarc_tld_file          = NULL;
 892 uschar *dmarc_used_domain       = NULL;
 893 #endif
 894
 895 uschar *dns_again_means_nonexist = NULL;
 896 int     dns_csa_search_limit   = 5;
 897 int     dns_cname_loops        = 1;
 898 #ifdef SUPPORT_DANE
 899 int     dns_dane_ok            = -1;
 900 #endif
 901 uschar *dns_ipv4_lookup        = NULL;
 902 int     dns_retrans            = 0;
 903 int     dns_retry              = 0;
 904 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 905 uschar *dns_trust_aa           = NULL;
 906 int     dns_use_edns0          = -1; /* <0 = not coerced */
 907 uschar *dnslist_domain         = NULL;
 908 uschar *dnslist_matched        = NULL;
 909 uschar *dnslist_text           = NULL;
 910 uschar *dnslist_value          = NULL;
 911 tree_node *domainlist_anchor   = NULL;
 912 int     domainlist_count       = 0;
 913 const uschar *driver_srcfile   = NULL;
 914 int     driver_srcline         = 0;
 915 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 916 unsigned int dtrigger_selector = 0;
 917
 918 int     errno_quota            = ERRNO_QUOTA;
 919 uschar *errors_copy            = NULL;
 920 int     error_handling         = ERRORS_SENDER;
 921 uschar *errors_reply_to        = NULL;
 922 int     errors_sender_rc       = EXIT_FAILURE;
 923 #ifndef DISABLE_EVENT
 924 uschar *event_action           = NULL;  /* expansion for delivery events */
 925 const uschar *event_data       = NULL;  /* auxiliary data variable for event */
 926 int     event_defer_errno      = 0;
 927 const uschar *event_name       = NULL;  /* event name variable */
 928 #endif
 929
 930
 931 gid_t   exim_gid               = EXIM_GID;
 932 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 933                         "\0<---------------Space to patch exim_path->";
 934 uid_t   exim_uid               = EXIM_UID;
 935 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 936 int     expand_forbid          = 0;
 937 int     expand_nlength[EXPAND_MAXN+1];
 938 int     expand_nmax            = -1;
 939 const uschar *expand_nstring[EXPAND_MAXN+1];
 940 uschar *expand_string_message;
 941 uschar *extra_local_interfaces = NULL;
 942
 943 int     fake_response          = OK;
 944 uschar *fake_response_text     = US"Your message has been rejected but is "
 945                                    "being kept for evaluation.\nIf it was a "
 946                                    "legitimate message, it may still be "
 947                                    "delivered to the target recipient(s).";
 948 int     filter_n[FILTER_VARIABLE_COUNT];
 949 int     filter_sn[FILTER_VARIABLE_COUNT];
 950 int     filter_test            = FTEST_NONE;
 951 const uschar * filter_test_sfile = NULL;
 952 const uschar * filter_test_ufile = NULL;
 953 uschar *filter_thisaddress     = NULL;
 954 int     finduser_retries       = 0;
 955 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 956 uschar *freeze_tell            = NULL;
 957 uschar *freeze_tell_config     = NULL;
 958 uschar *fudged_queue_times     = US"";
 959
 960 uschar *gecos_name             = NULL;
 961 uschar *gecos_pattern          = NULL;
 962 rewrite_rule  *global_rewrite_rules = NULL;
 963
 964 volatile sig_atomic_t had_command_timeout = 0;
 965 volatile sig_atomic_t had_command_sigterm = 0;
 966 volatile sig_atomic_t had_data_timeout    = 0;
 967 volatile sig_atomic_t had_data_sigint     = 0;
 968 const uschar *headers_charset  = US HEADERS_CHARSET;
 969 int     header_insert_maxlen   = 64 * 1024;
 970 header_line  *header_last      = NULL;
 971 header_line  *header_list      = NULL;
 972 int     header_maxsize         = HEADER_MAXSIZE;
 973 int     header_line_maxsize    = 0;
 974
 975 header_name header_names[] = {
 976   /* name               len     allow_resent    htype */
 977   { US"bcc",            3,      TRUE,           htype_bcc },
 978   { US"cc",             2,      TRUE,           htype_cc },
 979   { US"date",           4,      TRUE,           htype_date },
 980   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 981   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 982   { US"from",           4,      TRUE,           htype_from },
 983   { US"message-id",    10,      TRUE,           htype_id },
 984   { US"received",       8,      FALSE,          htype_received },
 985   { US"reply-to",       8,      FALSE,          htype_reply_to },
 986   { US"return-path",   11,      FALSE,          htype_return_path },
 987   { US"sender",         6,      TRUE,           htype_sender },
 988   { US"subject",        7,      FALSE,          htype_subject },
 989   { US"to",             2,      TRUE,           htype_to }
 990 };
 991
 992 int header_names_size          = nelem(header_names);
 993
 994 uschar *helo_accept_junk_hosts = NULL;
 995 uschar *helo_allow_chars       = US"";
 996 uschar *helo_lookup_domains    = US"@ : @[]";
 997 uschar *helo_try_verify_hosts  = NULL;
 998 uschar *helo_verify_hosts      = NULL;
 999 const uschar *hex_digits       = CUS"0123456789abcdef";
1000 uschar *hold_domains           = NULL;
1001 uschar *host_data              = NULL;
1002 uschar *host_lookup            = NULL;
1003 uschar *host_lookup_order      = US"bydns:byaddr";
1004 uschar *host_lookup_msg        = US"";
1005 int     host_number            = 0;
1006 uschar *host_number_string     = NULL;
1007 uschar *host_reject_connection = NULL;
1008 uschar *hosts_connection_nolog = NULL;
1009 #ifdef SUPPORT_PROXY
1010 uschar *hosts_proxy            = NULL;
1011 #endif
1012 uschar *hosts_treat_as_local   = NULL;
1013 uschar *hosts_require_helo     = US"*";
1014 #ifdef EXPERIMENTAL_XCLIENT
1015 uschar *hosts_xclient          = NULL;
1016 #endif
1017 tree_node *hostlist_anchor     = NULL;
1018 int     hostlist_count         = 0;
1019
1020
1021 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
1022 uschar *ignore_fromline_hosts  = NULL;
1023 int     inetd_wait_timeout     = -1;
1024 uschar *initial_cwd            = NULL;
1025 uschar *interface_address      = NULL;
1026 int     interface_port         = -1;
1027 uschar *iterate_item           = NULL;
1028
1029 int     journal_fd             = -1;
1030
1031 uschar *keep_environment       = NULL;
1032
1033 int     keep_malformed         = 4*24*60*60;    /* 4 days */
1034
1035 uschar *eldap_dn               = NULL;
1036 const uschar *letter_digit_hyphen_dot =
1037     US"abcdefghijklmnopqrstuvwxyz"
1038       ".-0123456789"
1039       "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
1040 #ifndef DISABLE_ESMTP_LIMITS
1041 uschar *limits_advertise_hosts = US"*";
1042 #endif
1043 int     load_average           = -2;
1044 uschar *local_from_prefix      = NULL;
1045 uschar *local_from_suffix      = NULL;
1046
1047 #if HAVE_IPV6
1048 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
1049 #else
1050 uschar *local_interfaces       = US"0.0.0.0";
1051 #endif
1052
1053 #ifdef HAVE_LOCAL_SCAN
1054 uschar *local_scan_data        = NULL;
1055 int     local_scan_timeout     = 5*60;
1056 #endif
1057 gid_t   local_user_gid         = (gid_t)(-1);
1058 uid_t   local_user_uid         = (uid_t)(-1);
1059
1060 tree_node *localpartlist_anchor= NULL;
1061 int     localpartlist_count    = 0;
1062 uschar *log_buffer             = NULL;
1063
1064 int     log_default[]          = { /* for initializing log_selector */
1065   Li_acl_warn_skipped,
1066   Li_connection_reject,
1067   Li_delay_delivery,
1068   Li_dkim,
1069   Li_dnslist_defer,
1070   Li_etrn,
1071   Li_host_lookup_failed,
1072   Li_lost_incoming_connection,
1073   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1074   Li_msg_id,
1075   Li_queue_run,
1076   Li_queue_time_exclusive,
1077   Li_rejected_header,
1078   Li_retry_defer,
1079   Li_sender_verify_fail,
1080   Li_size_reject,
1081   Li_skip_delivery,
1082   Li_smtp_confirmation,
1083   Li_tls_certificate_verified,
1084   Li_tls_cipher,
1085   -1
1086 };
1087
1088 uschar *log_file_path          = US LOG_FILE_PATH
1089                            "\0<--------------Space to patch log_file_path->";
1090
1091 int     log_notall[]           = {
1092   -1
1093 };
1094 bit_table log_options[]        = { /* must be in alphabetical order,
1095                                 with definitions from enum logbit. */
1096   BIT_TABLE(L, 8bitmime),
1097   BIT_TABLE(L, acl_warn_skipped),
1098   BIT_TABLE(L, address_rewrite),
1099   BIT_TABLE(L, all),
1100   BIT_TABLE(L, all_parents),
1101   BIT_TABLE(L, arguments),
1102   BIT_TABLE(L, connection_id),
1103   BIT_TABLE(L, connection_reject),
1104   BIT_TABLE(L, delay_delivery),
1105   BIT_TABLE(L, deliver_time),
1106   BIT_TABLE(L, delivery_size),
1107 #ifndef DISABLE_DKIM
1108   BIT_TABLE(L, dkim),
1109   BIT_TABLE(L, dkim_verbose),
1110 #endif
1111   BIT_TABLE(L, dnslist_defer),
1112   BIT_TABLE(L, dnssec),
1113   BIT_TABLE(L, etrn),
1114   BIT_TABLE(L, host_lookup_failed),
1115   BIT_TABLE(L, ident_timeout),
1116   BIT_TABLE(L, incoming_interface),
1117   BIT_TABLE(L, incoming_port),
1118   BIT_TABLE(L, lost_incoming_connection),
1119   BIT_TABLE(L, millisec),
1120   BIT_TABLE(L, msg_id),
1121   BIT_TABLE(L, msg_id_created),
1122   BIT_TABLE(L, outgoing_interface),
1123   BIT_TABLE(L, outgoing_port),
1124   BIT_TABLE(L, pid),
1125   BIT_TABLE(L, pipelining),
1126   BIT_TABLE(L, protocol_detail),
1127 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1128   BIT_TABLE(L, proxy),
1129 #endif
1130   BIT_TABLE(L, queue_run),
1131   BIT_TABLE(L, queue_time),
1132   BIT_TABLE(L, queue_time_exclusive),
1133   BIT_TABLE(L, queue_time_overall),
1134   BIT_TABLE(L, receive_time),
1135   BIT_TABLE(L, received_recipients),
1136   BIT_TABLE(L, received_sender),
1137   BIT_TABLE(L, rejected_header),
1138   { US"rejected_headers", Li_rejected_header },
1139   BIT_TABLE(L, retry_defer),
1140   BIT_TABLE(L, return_path_on_delivery),
1141   BIT_TABLE(L, sender_on_delivery),
1142   BIT_TABLE(L, sender_verify_fail),
1143   BIT_TABLE(L, size_reject),
1144   BIT_TABLE(L, skip_delivery),
1145   BIT_TABLE(L, smtp_confirmation),
1146   BIT_TABLE(L, smtp_connection),
1147   BIT_TABLE(L, smtp_incomplete_transaction),
1148   BIT_TABLE(L, smtp_mailauth),
1149   BIT_TABLE(L, smtp_no_mail),
1150   BIT_TABLE(L, smtp_protocol_error),
1151   BIT_TABLE(L, smtp_syntax_error),
1152   BIT_TABLE(L, subject),
1153   BIT_TABLE(L, tls_certificate_verified),
1154   BIT_TABLE(L, tls_cipher),
1155   BIT_TABLE(L, tls_peerdn),
1156   BIT_TABLE(L, tls_resumption),
1157   BIT_TABLE(L, tls_sni),
1158   BIT_TABLE(L, unknown_in_list),
1159 };
1160 int     log_options_count      = nelem(log_options);
1161
1162 int     log_reject_target      = 0;
1163 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1164 uschar *log_selector_string    = NULL;
1165 FILE   *log_stderr             = NULL;
1166 uschar *login_sender_address   = NULL;
1167 uschar *lookup_dnssec_authenticated = NULL;
1168 int     lookup_open_max        = 25;
1169 uschar *lookup_value           = NULL;
1170
1171 macro_item *macros_user        = NULL;
1172 uschar *mailstore_basename     = NULL;
1173 #ifdef WITH_CONTENT_SCAN
1174 uschar *malware_name           = NULL;  /* Virus Name */
1175 #endif
1176 int     max_received_linelength= 0;
1177 int     max_username_length    = 0;
1178 int     message_age            = 0;
1179 uschar *message_body           = NULL;
1180 uschar *message_body_end       = NULL;
1181 int     message_body_size      = 0;
1182 int     message_body_visible   = 500;
1183 int     message_ended          = END_NOTSTARTED;
1184 uschar *message_headers        = NULL;
1185 uschar *message_id;
1186 uschar *message_id_domain      = NULL;
1187 uschar *message_id_text        = NULL;
1188 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1189 uschar *message_id_external;
1190 int     message_linecount      = 0;
1191 int     message_size           = 0;
1192 uschar *message_size_limit     = US"50M";
1193 #ifdef SUPPORT_I18N
1194 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1195 #endif
1196 uschar  message_subdir[2]      = { 0, 0 };
1197 const uschar *message_reference= NULL;
1198
1199 /* MIME ACL expandables */
1200 #ifdef WITH_CONTENT_SCAN
1201 int     mime_anomaly_level     = 0;
1202 const uschar *mime_anomaly_text      = NULL;
1203 uschar *mime_boundary          = NULL;
1204 uschar *mime_charset           = NULL;
1205 uschar *mime_content_description = NULL;
1206 uschar *mime_content_disposition = NULL;
1207 uschar *mime_content_id        = NULL;
1208 unsigned int mime_content_size = 0;
1209 uschar *mime_content_transfer_encoding = NULL;
1210 uschar *mime_content_type      = NULL;
1211 uschar *mime_decoded_filename  = NULL;
1212 uschar *mime_filename          = NULL;
1213 int     mime_is_multipart      = 0;
1214 int     mime_is_coverletter    = 0;
1215 int     mime_is_rfc822         = 0;
1216 int     mime_part_count        = -1;
1217 #endif
1218
1219 uid_t  *never_users            = NULL;
1220 uschar *notifier_socket        = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1221
1222 const int on                   = 1;     /* for setsockopt */
1223 const int off                  = 0;
1224
1225 uid_t   original_euid;
1226 gid_t   originator_gid;
1227 uschar *originator_login       = NULL;
1228 uschar *originator_name        = NULL;
1229 uid_t   originator_uid;
1230 uschar *override_local_interfaces = NULL;
1231 const uschar *override_pid_file_path = NULL;
1232
1233 BOOL    panic_coredump         = FALSE;
1234 pcre2_general_context * pcre_gen_ctx = NULL;
1235 pcre2_compile_context * pcre_gen_cmp_ctx = NULL;
1236 pcre2_match_context * pcre_gen_mtc_ctx = NULL;
1237 pcre2_general_context * pcre_mlc_ctx = NULL;
1238 pcre2_compile_context * pcre_mlc_cmp_ctx = NULL;
1239
1240 uschar *percent_hack_domains   = NULL;
1241 const uschar *pid_file_path    = US PID_FILE_PATH
1242                            "\0<--------------Space to patch pid_file_path->";
1243 #ifndef DISABLE_PIPE_CONNECT
1244 uschar *pipe_connect_advertise_hosts = US"*";
1245 #endif
1246 uschar *pipelining_advertise_hosts = US"*";
1247 uschar *primary_hostname       = NULL;
1248 uschar *process_info;
1249 int     process_info_len       = 0;
1250 uschar *process_log_path       = NULL;
1251 const uschar *process_purpose  = US"fresh-exec";
1252
1253 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS) || defined(EXPERIMENTAL_XCLIENT)
1254 uschar *proxy_external_address = NULL;
1255 int     proxy_external_port    = 0;
1256 uschar *proxy_local_address    = NULL;
1257 int     proxy_local_port       = 0;
1258 int     proxy_protocol_timeout = 3;
1259 #endif
1260
1261 uschar *prvscheck_address      = NULL;
1262 uschar *prvscheck_keynum       = NULL;
1263 uschar *prvscheck_result       = NULL;
1264
1265
1266 qrunner *qrunners              = NULL;
1267
1268 const uschar *qualify_domain_recipient = NULL;
1269 uschar *qualify_domain_sender  = NULL;
1270 uschar *queue_domains          = NULL;
1271 int     queue_interval         = -1;
1272 uschar *queue_name             = US"";
1273 uschar *queue_name_dest        = NULL;
1274 uschar *queue_only_file        = NULL;
1275 int     queue_only_load        = -1;
1276 uschar *queue_run_max          = US"5";
1277 pid_t   queue_run_pid          = (pid_t)0;
1278 int     queue_run_pipe         = -1;
1279 unsigned queue_size            = 0;
1280 time_t  queue_size_next        = 0;
1281 uschar *queue_smtp_domains     = NULL;
1282
1283 uint32_t random_seed           = 0;
1284 tree_node *ratelimiters_cmd    = NULL;
1285 tree_node *ratelimiters_conn   = NULL;
1286 tree_node *ratelimiters_mail   = NULL;
1287 uschar *raw_active_hostname    = NULL;
1288 const uschar *raw_sender       = NULL;
1289 const uschar **raw_recipients  = NULL;
1290 int     raw_recipients_count   = 0;
1291
1292 int     rcpt_count             = 0;
1293 int     rcpt_fail_count        = 0;
1294 int     rcpt_defer_count       = 0;
1295 gid_t   real_gid;
1296 uid_t   real_uid;
1297 int     receive_linecount      = 0;
1298 int     receive_messagecount   = 0;
1299 int     receive_timeout        = 0;
1300 int     received_count         = 0;
1301 const uschar *received_for     = NULL;
1302
1303 /*  This is the default text for Received headers generated by Exim. The
1304 date  will be automatically added on the end. */
1305
1306 uschar *received_header_text   = US
1307      "Received: "
1308      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1309        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1310          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1311      "by $primary_hostname "
1312      "${if def:received_protocol {with $received_protocol }}"
1313 #ifndef DISABLE_TLS
1314      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1315      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1316 #endif
1317      "(Exim $version_number)\n\t"
1318      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1319      "id $message_exim_id"
1320      "${if def:received_for {\n\tfor $received_for}}"
1321      "\0<---------------Space to patch received_header_text->";
1322
1323 int     received_headers_max   = 30;
1324 uschar *received_protocol      = NULL;
1325 struct timeval received_time   = { 0, 0 };
1326 struct timeval received_time_complete = { 0, 0 };
1327 uschar *recipient_data         = NULL;
1328 uschar *recipient_unqualified_hosts = NULL;
1329 uschar *recipient_verify_failure = NULL;
1330 int     recipients_count       = 0;
1331 recipient_item  *recipients_list = NULL;
1332 int     recipients_list_max    = 0;
1333 uschar *recipients_max         = US"50000";
1334 int     recipients_max_expanded= 0;
1335 const pcre2_code *regex_AUTH         = NULL;
1336 const pcre2_code *regex_check_dns_names = NULL;
1337 const pcre2_code *regex_From         = NULL;
1338 const pcre2_code *regex_IGNOREQUOTA  = NULL;
1339 const pcre2_code *regex_PIPELINING   = NULL;
1340 const pcre2_code *regex_SIZE         = NULL;
1341 #ifndef DISABLE_PIPE_CONNECT
1342 const pcre2_code *regex_EARLY_PIPE   = NULL;
1343 #endif
1344 int    regex_cachesize               = 0;
1345 const pcre2_code *regex_ismsgid      = NULL;
1346 const pcre2_code *regex_smtp_code    = NULL;
1347 const uschar *regex_vars[REGEX_VARS] = { NULL };
1348 #ifdef WHITELIST_D_MACROS
1349 const pcre2_code *regex_whitelisted_macro = NULL;
1350 #endif
1351 #ifdef WITH_CONTENT_SCAN
1352 uschar *regex_match_string     = NULL;
1353 #endif
1354 int     remote_delivery_count  = 0;
1355 int     remote_max_parallel    = 4;
1356 uschar *remote_sort_domains    = NULL;
1357 int     retry_data_expire      = 7*24*60*60;
1358 int     retry_interval_max     = 24*60*60;
1359 int     retry_maximum_timeout  = 0;        /* set from retry config */
1360 retry_config  *retries         = NULL;
1361 const uschar *return_path            = NULL;
1362 int     rewrite_existflags     = 0;
1363 uschar *rfc1413_hosts          = US"@[]";
1364 int     rfc1413_query_timeout  = 0;
1365 uid_t   root_gid               = ROOT_GID;
1366 uid_t   root_uid               = ROOT_UID;
1367
1368 router_instance  *routers  = NULL;
1369
1370 /* All elements not mentioned will be 0/NULL/FALSE */
1371 router_instance  router_defaults = {
1372     .self =                     US"freeze",
1373
1374     .address_test =             TRUE,
1375     .expn =                     TRUE,
1376     .log_as_local =             TRUE_UNSET,
1377     .more =                     TRUE,
1378     .repeat_use =               TRUE,
1379     .retry_use_local_part =     TRUE_UNSET,
1380     .verify_recipient =         TRUE,
1381     .verify_sender =            TRUE,
1382
1383     .self_code =                self_freeze,
1384     .uid =                      (uid_t)(-1),
1385     .gid =                      (gid_t)(-1),
1386
1387     .dnssec =                   { .request= US"*", .require=NULL },
1388 };
1389
1390 const uschar *router_name      = NULL;
1391 tree_node *router_var          = NULL;
1392
1393 ip_address_item *running_interfaces = NULL;
1394
1395 /* This is a weird one. The following string gets patched in the binary by the
1396 script that sets up a copy of Exim for running in the test harness. It seems
1397 that compilers are now clever, and share constant strings if they can.
1398 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1399 make use of the end of this string in order to save space. So the patching then
1400 wrecks this. We defeat this optimization by adding some additional characters
1401 onto the end of the string. */
1402
1403 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1404
1405 int     runrc                  = 0;
1406
1407 uschar *search_error_message   = NULL;
1408 uschar *self_hostname          = NULL;
1409 const uschar *sender_address   = NULL;
1410 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1411 uschar *sender_address_data    = NULL;
1412 const uschar *sender_address_unrewritten = NULL;
1413 uschar *sender_data            = NULL;
1414 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1415 uschar *sender_fullhost        = NULL;
1416 uschar *sender_helo_name       = NULL;
1417 uschar **sender_host_aliases   = &no_aliases;
1418 uschar *sender_host_address    = NULL;
1419 uschar *sender_host_authenticated = NULL;
1420 uschar *sender_host_auth_pubname  = NULL;
1421 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1422 uschar *sender_host_name       = NULL;
1423 int     sender_host_port       = 0;
1424 uschar *sender_ident           = NULL;
1425 uschar *sender_rate            = NULL;
1426 uschar *sender_rate_limit      = NULL;
1427 uschar *sender_rate_period     = NULL;
1428 uschar *sender_rcvhost         = NULL;
1429 uschar *sender_unqualified_hosts = NULL;
1430 uschar *sender_verify_failure = NULL;
1431 address_item *sender_verified_list  = NULL;
1432 address_item *sender_verified_failed = NULL;
1433 int     sender_verified_rc     = -1;
1434 uschar *sending_ip_address     = NULL;
1435 int     sending_port           = -1;
1436 SIGNAL_BOOL sigalrm_seen       = FALSE;
1437 const uschar *sigalarm_setter  = NULL;
1438 const uschar **sighup_argv     = NULL;
1439 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1440 int     smtp_accept_count      = 0;
1441 int     smtp_accept_max        = 20;
1442 int     smtp_accept_max_nonmail= 10;
1443 uschar *smtp_accept_max_nonmail_hosts = US"*";
1444 uschar *smtp_accept_max_per_connection = US"1000";
1445 uschar *smtp_accept_max_per_host = NULL;
1446 int     smtp_accept_queue      = 0;
1447 int     smtp_accept_queue_per_connection = 10;
1448 int     smtp_accept_reserve    = 0;
1449 uschar *smtp_active_hostname   = NULL;
1450 int     smtp_backlog_monitor   = 0;
1451 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1452                              "Exim $version_number $tod_full"
1453                              "\0<---------------Space to patch smtp_banner->";
1454 int     smtp_ch_index          = 0;
1455 uschar *smtp_cmd_argument      = NULL;
1456 uschar *smtp_cmd_buffer        = NULL;
1457 struct timeval smtp_connection_start  = {0,0};
1458 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1459 int     smtp_connect_backlog   = 20;
1460 double  smtp_delay_mail        = 0.0;
1461 double  smtp_delay_rcpt        = 0.0;
1462 FILE   *smtp_in                = NULL;
1463 int     smtp_listen_backlog    = 0;
1464 int     smtp_load_reserve      = -1;
1465 int     smtp_mailcmd_count     = 0;
1466 int     smtp_mailcmd_max       = -1;
1467 FILE   *smtp_out               = NULL;
1468 uschar *smtp_etrn_command      = NULL;
1469 int     smtp_max_synprot_errors= 3;
1470 int     smtp_max_unknown_commands = 3;
1471 uschar *smtp_notquit_reason    = NULL;
1472 unsigned smtp_peer_options     = 0;
1473 unsigned smtp_peer_options_wrap= 0;
1474 uschar *smtp_ratelimit_hosts   = NULL;
1475 uschar *smtp_ratelimit_mail    = NULL;
1476 uschar *smtp_ratelimit_rcpt    = NULL;
1477 uschar *smtp_read_error        = US"";
1478 int     smtp_receive_timeout   = 5*60;
1479 uschar *smtp_receive_timeout_s = NULL;
1480 uschar *smtp_reserve_hosts     = NULL;
1481 int     smtp_rlm_base          = 0;
1482 double  smtp_rlm_factor        = 0.0;
1483 int     smtp_rlm_limit         = 0;
1484 int     smtp_rlm_threshold     = INT_MAX;
1485 int     smtp_rlr_base          = 0;
1486 double  smtp_rlr_factor        = 0.0;
1487 int     smtp_rlr_limit         = 0;
1488 int     smtp_rlr_threshold     = INT_MAX;
1489 #ifdef SUPPORT_I18N
1490 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1491 #endif
1492
1493 #ifdef WITH_CONTENT_SCAN
1494 uschar *spamd_address          = US"127.0.0.1 783";
1495 uschar *spam_bar               = NULL;
1496 uschar *spam_report            = NULL;
1497 uschar *spam_action            = NULL;
1498 uschar *spam_score             = NULL;
1499 uschar *spam_score_int         = NULL;
1500 #endif
1501
1502 FILE   *spool_data_file        = NULL;
1503 uschar *spool_directory        = US SPOOL_DIRECTORY
1504                            "\0<--------------Space to patch spool_directory->";
1505 #ifdef SUPPORT_SRS
1506 uschar *srs_recipient          = NULL;
1507 #endif
1508 int     string_datestamp_offset= -1;
1509 int     string_datestamp_length= 0;
1510 int     string_datestamp_type  = -1;
1511 const uschar *submission_domain = NULL;
1512 const uschar *submission_name  = NULL;
1513 int     syslog_facility        = LOG_MAIL;
1514 const uschar *syslog_processname= US"exim";
1515 uschar *system_filter          = NULL;
1516
1517 uschar *system_filter_directory_transport = NULL;
1518 uschar *system_filter_file_transport = NULL;
1519 uschar *system_filter_pipe_transport = NULL;
1520 uschar *system_filter_reply_transport = NULL;
1521
1522 gid_t   system_filter_gid      = 0;
1523 uid_t   system_filter_uid      = (uid_t)-1;
1524
1525 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1526 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1527 #ifdef USE_TCP_WRAPPERS
1528 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1529 #endif
1530 int     test_harness_load_avg  = 0;
1531 int     thismessage_size_limit = 0;
1532 int     timeout_frozen_after   = 0;
1533 #ifdef MEASURE_TIMING
1534 struct timeval timestamp_startup;
1535 #endif
1536
1537 transport_instance  *transports = NULL;
1538
1539 transport_instance  transport_defaults = {
1540     /* All non-mentioned elements zero/NULL/FALSE */
1541     .batch_max =                1,
1542     .multi_domain =             TRUE,
1543     .max_addresses =            US"100",
1544     .connection_max_messages =  500,
1545     .uid =                      (uid_t)(-1),
1546     .gid =                      (gid_t)(-1),
1547     .filter_timeout =           300,
1548     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1549                                                  1 nor 0 so can detect unset */
1550 };
1551
1552 int     transport_count;
1553 const uschar *transport_name          = NULL;
1554 int     transport_newlines;
1555 const uschar **transport_filter_argv  = NULL;
1556 int     transport_filter_timeout;
1557 int     transport_write_timeout= 0;
1558
1559 tree_node  *tree_dns_fails     = NULL;
1560 tree_node  *tree_duplicates    = NULL;
1561 tree_node  *tree_nonrecipients = NULL;
1562 tree_node  *tree_unusable      = NULL;
1563
1564 gid_t  *trusted_groups         = NULL;
1565 uid_t  *trusted_users          = NULL;
1566 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1567
1568 uschar *unknown_login          = NULL;
1569 uschar *unknown_username       = NULL;
1570 uschar *untrusted_set_sender   = NULL;
1571
1572 /*  A regex for matching a "From_" line in an incoming message, in the form
1573
1574     From ph10 Fri Jan  5 12:35 GMT 1996
1575
1576 which  the "mail" commands send to the MTA (undocumented, of course), or in
1577 the  form
1578
1579     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1580
1581 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1582 Because  of variations in time formats, just match up to the minutes. That
1583 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1584 so  just require one digit for hours and minutes. The weekday is also absent
1585 in  some forms. */
1586
1587 uschar *uucp_from_pattern      = US
1588    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1589    "(?:"                                          /* Non-extracting bracket */
1590    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1591    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1592    ")"                                            /* End alternation */
1593    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1594
1595 uschar *uucp_from_sender       = US"$1";
1596
1597 uschar *verify_mode            = NULL;
1598 uschar *version_copyright      =
1599  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1600    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2024";
1601 uschar *version_date           = US"?";
1602 uschar *version_cnumber        = US"????";
1603 uschar *version_string         = US"?";
1604
1605 uschar *warn_message_file      = NULL;
1606 int     warning_count          = 0;
1607 const uschar *warnmsg_delay    = NULL;
1608 const uschar *warnmsg_recipients = NULL;
1609
1610 #ifndef DISABLE_WELLKNOWN
1611 uschar *wellknown_advertise_hosts = NULL;
1612 uschar *wellknown_response     = NULL;
1613 #endif
1614
1615 /*  End of globals.c */
1616 /* vi: aw ai sw=2
1617 */