src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* Copyright (c) The Exim Maintainers 2020 */
   7 /* See the file NOTICE for conditions of use and distribution. */
   8
   9 /* All the global variables are defined together in this one module, so
  10 that they are easy to find. */
  11
  12 #include "exim.h"
  13
  14
  15 /* Generic options for auths, all of which live inside auth_instance
  16 data blocks and hence have the opt_public flag set. */
  17
  18 optionlist optionlist_auths[] = {
  19   { "client_condition", opt_stringptr | opt_public,
  20                  OPT_OFF(auth_instance, client_condition) },
  21   { "client_set_id", opt_stringptr | opt_public,
  22                  OPT_OFF(auth_instance, set_client_id) },
  23   { "driver",        opt_stringptr | opt_public,
  24                  OPT_OFF(auth_instance, driver_name) },
  25   { "public_name",   opt_stringptr | opt_public,
  26                  OPT_OFF(auth_instance, public_name) },
  27   { "server_advertise_condition", opt_stringptr | opt_public,
  28                  OPT_OFF(auth_instance, advertise_condition)},
  29   { "server_condition", opt_stringptr | opt_public,
  30                  OPT_OFF(auth_instance, server_condition) },
  31   { "server_debug_print", opt_stringptr | opt_public,
  32                  OPT_OFF(auth_instance, server_debug_string) },
  33   { "server_mail_auth_condition", opt_stringptr | opt_public,
  34                  OPT_OFF(auth_instance, mail_auth_condition) },
  35   { "server_set_id", opt_stringptr | opt_public,
  36                  OPT_OFF(auth_instance, set_id) }
  37 };
  38
  39 int     optionlist_auths_size = nelem(optionlist_auths);
  40
  41 /* An empty host aliases list. */
  42
  43 uschar *no_aliases             = NULL;
  44
  45
  46 /* For comments on these variables, see globals.h. I'm too idle to
  47 duplicate them here... */
  48
  49 #ifdef EXIM_PERL
  50 uschar *opt_perl_startup       = NULL;
  51 BOOL    opt_perl_at_start      = FALSE;
  52 BOOL    opt_perl_started       = FALSE;
  53 BOOL    opt_perl_taintmode     = FALSE;
  54 #endif
  55
  56 #ifdef EXPAND_DLFUNC
  57 tree_node *dlobj_anchor        = NULL;
  58 #endif
  59
  60 #ifdef LOOKUP_IBASE
  61 uschar *ibase_servers          = NULL;
  62 #endif
  63
  64 #ifdef LOOKUP_LDAP
  65 uschar *eldap_ca_cert_dir      = NULL;
  66 uschar *eldap_ca_cert_file     = NULL;
  67 uschar *eldap_cert_file        = NULL;
  68 uschar *eldap_cert_key         = NULL;
  69 uschar *eldap_cipher_suite     = NULL;
  70 uschar *eldap_default_servers  = NULL;
  71 uschar *eldap_require_cert     = NULL;
  72 int     eldap_version          = -1;
  73 BOOL    eldap_start_tls        = FALSE;
  74 #endif
  75
  76 #ifdef LOOKUP_MYSQL
  77 uschar *mysql_servers          = NULL;
  78 #endif
  79
  80 #ifdef LOOKUP_ORACLE
  81 uschar *oracle_servers         = NULL;
  82 #endif
  83
  84 #ifdef LOOKUP_PGSQL
  85 uschar *pgsql_servers          = NULL;
  86 #endif
  87
  88 #ifdef LOOKUP_REDIS
  89 uschar *redis_servers          = NULL;
  90 #endif
  91
  92 #ifdef LOOKUP_SQLITE
  93 uschar *sqlite_dbfile          = NULL;
  94 int     sqlite_lock_timeout    = 5;
  95 #endif
  96
  97 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  98 BOOL    move_frozen_messages   = FALSE;
  99 #endif
 100
 101 /* These variables are outside the #ifdef because it keeps the code less
 102 cluttered in several places (e.g. during logging) if we can always refer to
 103 them. Also, the tls_ variables are now always visible.  Note that these are
 104 only used for smtp connections, not for service-daemon access. */
 105
 106 tls_support tls_in = {
 107  .active =              {.sock = -1}
 108  /* all other elements zero */
 109 };
 110 tls_support tls_out = {
 111  .active =              {.sock = -1},
 112  /* all other elements zero */
 113 };
 114
 115 uschar *dsn_envid              = NULL;
 116 int     dsn_ret                = 0;
 117 const pcre  *regex_DSN         = NULL;
 118 uschar *dsn_advertise_hosts    = NULL;
 119
 120 #ifndef DISABLE_TLS
 121 BOOL    gnutls_compat_mode     = FALSE;
 122 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 123 uschar *openssl_options        = NULL;
 124 const pcre *regex_STARTTLS     = NULL;
 125 uschar *tls_advertise_hosts    = US"*";
 126 uschar *tls_certificate        = NULL;
 127 uschar *tls_crl                = NULL;
 128 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 129 that's the interop problem which has been observed: GnuTLS suggesting a higher
 130 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 131 int     tls_dh_max_bits        = 2236;
 132 uschar *tls_dhparam            = NULL;
 133 uschar *tls_eccurve            = US"auto";
 134 # ifndef DISABLE_OCSP
 135 uschar *tls_ocsp_file          = NULL;
 136 # endif
 137 uschar *tls_privatekey         = NULL;
 138 BOOL    tls_remember_esmtp     = FALSE;
 139 uschar *tls_require_ciphers    = NULL;
 140 # ifndef DISABLE_TLS_RESUME
 141 uschar *tls_resumption_hosts   = NULL;
 142 # endif
 143 uschar *tls_try_verify_hosts   = NULL;
 144 #if defined(SUPPORT_SYSDEFAULT_CABUNDLE) || !defined(USE_GNUTLS)
 145 uschar *tls_verify_certificates= US"system";
 146 #else
 147 uschar *tls_verify_certificates= NULL;
 148 #endif
 149 uschar *tls_verify_hosts       = NULL;
 150 int     tls_watch_fd           = -1;
 151 time_t  tls_watch_trigger_time = (time_t)0;
 152 #else   /*DISABLE_TLS*/
 153 uschar *tls_advertise_hosts    = NULL;
 154 #endif
 155
 156 #ifndef DISABLE_PRDR
 157 /* Per Recipient Data Response variables */
 158 BOOL    prdr_enable            = FALSE;
 159 BOOL    prdr_requested         = FALSE;
 160 const pcre *regex_PRDR         = NULL;
 161 #endif
 162
 163 #ifdef SUPPORT_I18N
 164 const pcre *regex_UTF8         = NULL;
 165 #endif
 166
 167 /* Input-reading functions for messages, so we can use special ones for
 168 incoming TCP/IP. The defaults use stdin. We never need these for any
 169 stand-alone tests. */
 170
 171 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 172 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 173 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 174 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 175 int (*receive_getc)(unsigned)  = stdin_getc;
 176 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 177 void (*receive_get_cache)(void)= NULL;
 178 int (*receive_ungetc)(int)     = stdin_ungetc;
 179 int (*receive_feof)(void)      = stdin_feof;
 180 int (*receive_ferror)(void)    = stdin_ferror;
 181 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 182 #endif
 183
 184
 185 /* List of per-address expansion variables for clearing and saving/restoring
 186 when verifying one address while routing/verifying another. We have to have
 187 the size explicit, because it is referenced from more than one module. */
 188
 189 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 190   CUSS &deliver_address_data,
 191   CUSS &deliver_domain,
 192   CUSS &deliver_domain_data,
 193   CUSS &deliver_domain_orig,
 194   CUSS &deliver_domain_parent,
 195   CUSS &deliver_localpart,
 196   CUSS &deliver_localpart_data,
 197   CUSS &deliver_localpart_orig,
 198   CUSS &deliver_localpart_parent,
 199   CUSS &deliver_localpart_prefix,
 200   CUSS &deliver_localpart_suffix,
 201   CUSS (uschar **)(&deliver_recipients),
 202   CUSS &deliver_host,
 203   CUSS &deliver_home,
 204   CUSS &address_file,
 205   CUSS &address_pipe,
 206   CUSS &self_hostname,
 207   NULL };
 208
 209 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 210
 211 /******************************************************************************/
 212 /* General global variables.  Boolean flags are done as a group
 213 so that only one bit each is needed, packed, for all those we never
 214 need to take a pointer - and only a char for the rest.
 215 This means a struct, unfortunately since it clutters the sourcecode. */
 216
 217 struct global_flags f =
 218 {
 219         .acl_temp_details       = FALSE,
 220         .active_local_from_check = FALSE,
 221         .active_local_sender_retain = FALSE,
 222         .address_test_mode      = FALSE,
 223         .admin_user             = FALSE,
 224         .allow_auth_unadvertised= FALSE,
 225         .allow_unqualified_recipient = TRUE,    /* For local messages */
 226         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 227         .authentication_local   = FALSE,
 228
 229         .background_daemon      = TRUE,
 230         .bdat_readers_wanted    = FALSE,
 231
 232         .chunking_offered       = FALSE,
 233         .config_changed         = FALSE,
 234         .continue_more          = FALSE,
 235
 236         .daemon_listen          = FALSE,
 237         .debug_daemon           = FALSE,
 238         .deliver_firsttime      = FALSE,
 239         .deliver_force          = FALSE,
 240         .deliver_freeze         = FALSE,
 241         .deliver_force_thaw     = FALSE,
 242         .deliver_manual_thaw    = FALSE,
 243         .deliver_selectstring_regex = FALSE,
 244         .deliver_selectstring_sender_regex = FALSE,
 245         .disable_callout_flush  = FALSE,
 246         .disable_delay_flush    = FALSE,
 247         .disable_logging        = FALSE,
 248 #ifndef DISABLE_DKIM
 249         .dkim_disable_verify      = FALSE,
 250         .dkim_init_done           = FALSE,
 251 #endif
 252 #ifdef SUPPORT_DMARC
 253         .dmarc_has_been_checked  = FALSE,
 254         .dmarc_disable_verify    = FALSE,
 255         .dmarc_enable_forensic   = FALSE,
 256 #endif
 257         .dont_deliver           = FALSE,
 258         .dot_ends               = TRUE,
 259
 260         .enable_dollar_recipients = FALSE,
 261         .expand_string_forcedfail = FALSE,
 262
 263         .filter_running         = FALSE,
 264
 265         .header_rewritten       = FALSE,
 266         .helo_verified          = FALSE,
 267         .helo_verify_failed     = FALSE,
 268         .host_checking_callout  = FALSE,
 269         .host_find_failed_syntax= FALSE,
 270
 271         .inetd_wait_mode        = FALSE,
 272         .is_inetd               = FALSE,
 273
 274         .local_error_message    = FALSE,
 275         .log_testing_mode       = FALSE,
 276
 277 #ifdef WITH_CONTENT_SCAN
 278         .no_mbox_unspool        = FALSE,
 279 #endif
 280         .no_multiline_responses = FALSE,
 281
 282         .parse_allow_group      = FALSE,
 283         .parse_found_group      = FALSE,
 284         .pipelining_enable      = TRUE,
 285 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 286         .proxy_session_failed   = FALSE,
 287 #endif
 288
 289         .queue_2stage           = FALSE,
 290         .queue_only_policy      = FALSE,
 291         .queue_run_first_delivery = FALSE,
 292         .queue_run_force        = FALSE,
 293         .queue_run_local        = FALSE,
 294         .queue_running          = FALSE,
 295         .queue_smtp             = FALSE,
 296
 297         .really_exim            = TRUE,
 298         .receive_call_bombout   = FALSE,
 299         .recipients_discarded   = FALSE,
 300         .running_in_test_harness = FALSE,
 301
 302         .search_find_defer      = FALSE,
 303         .sender_address_forced  = FALSE,
 304         .sender_host_notsocket  = FALSE,
 305         .sender_host_unknown    = FALSE,
 306         .sender_local           = FALSE,
 307         .sender_name_forced     = FALSE,
 308         .sender_set_untrusted   = FALSE,
 309         .smtp_authenticated     = FALSE,
 310 #ifndef DISABLE_PIPE_CONNECT
 311         .smtp_in_early_pipe_advertised = FALSE,
 312         .smtp_in_early_pipe_no_auth = FALSE,
 313         .smtp_in_early_pipe_used = FALSE,
 314 #endif
 315         .smtp_in_pipelining_advertised = FALSE,
 316         .smtp_in_pipelining_used = FALSE,
 317         .smtp_in_quit           = FALSE,
 318         .spool_file_wireformat  = FALSE,
 319         .submission_mode        = FALSE,
 320         .suppress_local_fixups  = FALSE,
 321         .suppress_local_fixups_default = FALSE,
 322         .synchronous_delivery   = FALSE,
 323         .system_filtering       = FALSE,
 324
 325         .taint_check_slow       = FALSE,
 326         .testsuite_delays       = TRUE,
 327         .tcp_fastopen_ok        = FALSE,
 328         .tcp_in_fastopen        = FALSE,
 329         .tcp_in_fastopen_data   = FALSE,
 330         .tcp_in_fastopen_logged = FALSE,
 331         .tcp_out_fastopen_logged= FALSE,
 332         .timestamps_utc         = FALSE,
 333         .transport_filter_timed_out = FALSE,
 334         .trusted_caller         = FALSE,
 335         .trusted_config         = TRUE,
 336 };
 337
 338 /******************************************************************************/
 339 /* These are the flags which are either variables or mainsection options,
 340 so an address is needed for access, or are exported to local_scan. */
 341
 342 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 343 BOOL    allow_domain_literals  = FALSE;
 344 BOOL    allow_mx_to_ip         = FALSE;
 345 BOOL    allow_utf8_domains     = FALSE;
 346 BOOL    authentication_failed  = FALSE;
 347
 348 BOOL    bounce_return_body     = TRUE;
 349 BOOL    bounce_return_message  = TRUE;
 350 BOOL    check_rfc2047_length   = TRUE;
 351 BOOL    commandline_checks_require_admin = FALSE;
 352
 353 #ifdef EXPERIMENTAL_DCC
 354 BOOL    dcc_direct_add_header  = FALSE;
 355 #endif
 356 BOOL    debug_store            = FALSE;
 357 BOOL    delivery_date_remove   = TRUE;
 358 BOOL    deliver_drop_privilege = FALSE;
 359 #ifdef ENABLE_DISABLE_FSYNC
 360 BOOL    disable_fsync          = FALSE;
 361 #endif
 362 BOOL    disable_ipv6           = FALSE;
 363 BOOL    dns_csa_use_reverse    = TRUE;
 364 BOOL    drop_cr                = FALSE;         /* No longer used */
 365
 366 BOOL    envelope_to_remove     = TRUE;
 367 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 368 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 369 BOOL    extract_addresses_remove_arguments = TRUE;
 370
 371 BOOL    host_checking          = FALSE;
 372 BOOL    host_lookup_deferred   = FALSE;
 373 BOOL    host_lookup_failed     = FALSE;
 374 BOOL    ignore_fromline_local  = FALSE;
 375
 376 BOOL    local_from_check       = TRUE;
 377 BOOL    local_sender_retain    = FALSE;
 378 BOOL    log_timezone           = FALSE;
 379 BOOL    message_body_newlines  = FALSE;
 380 BOOL    message_logs           = TRUE;
 381 #ifdef SUPPORT_I18N
 382 BOOL    message_smtputf8       = FALSE;
 383 #endif
 384 BOOL    mua_wrapper            = FALSE;
 385
 386 BOOL    preserve_message_logs  = FALSE;
 387 BOOL    print_topbitchars      = FALSE;
 388 BOOL    prod_requires_admin    = TRUE;
 389 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 390 BOOL    proxy_session          = FALSE;
 391 #endif
 392
 393 #ifndef DISABLE_QUEUE_RAMP
 394 BOOL    queue_fast_ramp         = FALSE;
 395 #endif
 396 BOOL    queue_list_requires_admin = TRUE;
 397 BOOL    queue_only             = FALSE;
 398 BOOL    queue_only_load_latch  = TRUE;
 399 BOOL    queue_only_override    = TRUE;
 400 BOOL    queue_run_in_order     = FALSE;
 401 BOOL    recipients_max_reject  = FALSE;
 402 BOOL    return_path_remove     = TRUE;
 403
 404 BOOL    smtp_batched_input     = FALSE;
 405 BOOL    sender_helo_dnssec     = FALSE;
 406 BOOL    sender_host_dnssec     = FALSE;
 407 BOOL    smtp_accept_keepalive  = TRUE;
 408 BOOL    smtp_check_spool_space = TRUE;
 409 BOOL    smtp_enforce_sync      = TRUE;
 410 BOOL    smtp_etrn_serialize    = TRUE;
 411 BOOL    smtp_input             = FALSE;
 412 BOOL    smtp_return_error_details = FALSE;
 413 #ifdef SUPPORT_SPF
 414 BOOL    spf_result_guessed     = FALSE;
 415 #endif
 416 BOOL    split_spool_directory  = FALSE;
 417 BOOL    spool_wireformat       = FALSE;
 418 #ifdef EXPERIMENTAL_SRS_ALT
 419 BOOL    srs_usehash            = TRUE;
 420 BOOL    srs_usetimestamp       = TRUE;
 421 #endif
 422 BOOL    strict_acl_vars        = FALSE;
 423 BOOL    strip_excess_angle_brackets = FALSE;
 424 BOOL    strip_trailing_dot     = FALSE;
 425 BOOL    syslog_duplication     = TRUE;
 426 BOOL    syslog_pid             = TRUE;
 427 BOOL    syslog_timestamp       = TRUE;
 428 BOOL    system_filter_gid_set  = FALSE;
 429 BOOL    system_filter_uid_set  = FALSE;
 430
 431 BOOL    tcp_nodelay            = TRUE;
 432 BOOL    write_rejectlog        = TRUE;
 433
 434 /******************************************************************************/
 435
 436 header_line *acl_added_headers = NULL;
 437 tree_node *acl_anchor          = NULL;
 438 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 439                                   NULL, NULL, NULL, NULL};
 440 int     acl_narg               = 0;
 441
 442 int     acl_level              = 0;
 443
 444 uschar *acl_not_smtp           = NULL;
 445 #ifdef WITH_CONTENT_SCAN
 446 uschar *acl_not_smtp_mime      = NULL;
 447 #endif
 448 uschar *acl_not_smtp_start     = NULL;
 449 uschar *acl_removed_headers    = NULL;
 450 uschar *acl_smtp_auth          = NULL;
 451 uschar *acl_smtp_connect       = NULL;
 452 uschar *acl_smtp_data          = NULL;
 453 #ifndef DISABLE_PRDR
 454 uschar *acl_smtp_data_prdr     = US"accept";
 455 #endif
 456 #ifndef DISABLE_DKIM
 457 uschar *acl_smtp_dkim          = NULL;
 458 #endif
 459 uschar *acl_smtp_etrn          = NULL;
 460 uschar *acl_smtp_expn          = NULL;
 461 uschar *acl_smtp_helo          = NULL;
 462 uschar *acl_smtp_mail          = NULL;
 463 uschar *acl_smtp_mailauth      = NULL;
 464 #ifdef WITH_CONTENT_SCAN
 465 uschar *acl_smtp_mime          = NULL;
 466 #endif
 467 uschar *acl_smtp_notquit       = NULL;
 468 uschar *acl_smtp_predata       = NULL;
 469 uschar *acl_smtp_quit          = NULL;
 470 uschar *acl_smtp_rcpt          = NULL;
 471 uschar *acl_smtp_starttls      = NULL;
 472 uschar *acl_smtp_vrfy          = NULL;
 473
 474 tree_node *acl_var_c           = NULL;
 475 tree_node *acl_var_m           = NULL;
 476 uschar *acl_verify_message     = NULL;
 477 string_item *acl_warn_logged   = NULL;
 478
 479 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 480 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 481
 482 uschar *acl_wherenames[]       = { US"RCPT",
 483                                    US"MAIL",
 484                                    US"PREDATA",
 485                                    US"MIME",
 486                                    US"DKIM",
 487                                    US"DATA",
 488 #ifndef DISABLE_PRDR
 489                                    US"PRDR",
 490 #endif
 491                                    US"non-SMTP",
 492                                    US"AUTH",
 493                                    US"connection",
 494                                    US"ETRN",
 495                                    US"EXPN",
 496                                    US"EHLO or HELO",
 497                                    US"MAILAUTH",
 498                                    US"non-SMTP-start",
 499                                    US"NOTQUIT",
 500                                    US"QUIT",
 501                                    US"STARTTLS",
 502                                    US"VRFY",
 503                                    US"delivery",
 504                                    US"unknown"
 505                                  };
 506
 507 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 508                                    US"550",     /* MAIL */
 509                                    US"550",     /* PREDATA */
 510                                    US"550",     /* MIME */
 511                                    US"550",     /* DKIM */
 512                                    US"550",     /* DATA */
 513 #ifndef DISABLE_PRDR
 514                                    US"550",    /* RCPT PRDR */
 515 #endif
 516                                    US"0",       /* not SMTP; not relevant */
 517                                    US"503",     /* AUTH */
 518                                    US"550",     /* connect */
 519                                    US"458",     /* ETRN */
 520                                    US"550",     /* EXPN */
 521                                    US"550",     /* HELO/EHLO */
 522                                    US"0",       /* MAILAUTH; not relevant */
 523                                    US"0",       /* not SMTP; not relevant */
 524                                    US"0",       /* NOTQUIT; not relevant */
 525                                    US"0",       /* QUIT; not relevant */
 526                                    US"550",     /* STARTTLS */
 527                                    US"252",     /* VRFY */
 528                                    US"0",       /* delivery; not relevant */
 529                                    US"0"        /* unknown; not relevant */
 530                                  };
 531
 532 uschar *add_environment        = NULL;
 533 address_item  *addr_duplicate  = NULL;
 534
 535 address_item address_defaults = {
 536   .next =               NULL,
 537   .parent =             NULL,
 538   .first =              NULL,
 539   .dupof =              NULL,
 540   .start_router =       NULL,
 541   .router =             NULL,
 542   .transport =          NULL,
 543   .host_list =          NULL,
 544   .host_used =          NULL,
 545   .fallback_hosts =     NULL,
 546   .reply =              NULL,
 547   .retries =            NULL,
 548   .address =            NULL,
 549   .unique =             NULL,
 550   .cc_local_part =      NULL,
 551   .lc_local_part =      NULL,
 552   .local_part =         NULL,
 553   .prefix =             NULL,
 554   .prefix_v =           NULL,
 555   .suffix =             NULL,
 556   .suffix_v =           NULL,
 557   .domain =             NULL,
 558   .address_retry_key =  NULL,
 559   .domain_retry_key =   NULL,
 560   .current_dir =        NULL,
 561   .home_dir =           NULL,
 562   .message =            NULL,
 563   .user_message =       NULL,
 564   .onetime_parent =     NULL,
 565   .pipe_expandn =       NULL,
 566   .return_filename =    NULL,
 567   .self_hostname =      NULL,
 568   .shadow_message =     NULL,
 569 #ifndef DISABLE_TLS
 570   .cipher =             NULL,
 571   .ourcert =            NULL,
 572   .peercert =           NULL,
 573   .peerdn =             NULL,
 574   .ocsp =               OCSP_NOT_REQ,
 575 #endif
 576 #ifdef EXPERIMENTAL_DSN_INFO
 577   .smtp_greeting =      NULL,
 578   .helo_response =      NULL,
 579 #endif
 580   .authenticator =      NULL,
 581   .auth_id =            NULL,
 582   .auth_sndr =          NULL,
 583   .dsn_orcpt =          NULL,
 584   .dsn_flags =          0,
 585   .dsn_aware =          0,
 586   .uid =                (uid_t)(-1),
 587   .gid =                (gid_t)(-1),
 588   .flags =              { 0 },
 589   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 590   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 591   .mode =               -1,
 592   .more_errno =         0,
 593   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 594   .basic_errno =        ERRNO_UNKNOWNERROR,
 595   .child_count =        0,
 596   .return_file =        -1,
 597   .special_action =     SPECIAL_NONE,
 598   .transport_return =   DEFER,
 599   .prop = {                                     /* fields that are propagated to children */
 600     .address_data =     NULL,
 601     .domain_data =      NULL,
 602     .localpart_data =   NULL,
 603     .errors_address =   NULL,
 604     .extra_headers =    NULL,
 605     .remove_headers =   NULL,
 606     .variables =        NULL,
 607 #ifdef EXPERIMENTAL_SRS_ALT
 608     .srs_sender =       NULL,
 609 #endif
 610     .ignore_error =     FALSE,
 611 #ifdef SUPPORT_I18N
 612     .utf8_msg =         FALSE,
 613     .utf8_downcvt =     FALSE,
 614     .utf8_downcvt_maybe = FALSE
 615 #endif
 616   }
 617 };
 618
 619 uschar *address_file           = NULL;
 620 uschar *address_pipe           = NULL;
 621 tree_node *addresslist_anchor  = NULL;
 622 int     addresslist_count      = 0;
 623 gid_t  *admin_groups           = NULL;
 624
 625 #ifdef EXPERIMENTAL_ARC
 626 struct arc_set *arc_received    = NULL;
 627 int     arc_received_instance   = 0;
 628 int     arc_oldest_pass         = 0;
 629 const uschar *arc_state         = NULL;
 630 const uschar *arc_state_reason  = NULL;
 631 #endif
 632
 633 uschar *authenticated_fail_id  = NULL;
 634 uschar *authenticated_id       = NULL;
 635 uschar *authenticated_sender   = NULL;
 636 auth_instance  *auths          = NULL;
 637 uschar *auth_advertise_hosts   = US"*";
 638 auth_instance auth_defaults    = {
 639     .next =             NULL,
 640     .name =             NULL,
 641     .info =             NULL,
 642     .options_block =    NULL,
 643     .driver_name =      NULL,
 644     .advertise_condition = NULL,
 645     .client_condition = NULL,
 646     .public_name =      NULL,
 647     .set_id =           NULL,
 648     .set_client_id =    NULL,
 649     .mail_auth_condition = NULL,
 650     .server_debug_string = NULL,
 651     .server_condition = NULL,
 652     .client =           FALSE,
 653     .server =           FALSE,
 654     .advertised =       FALSE
 655 };
 656
 657 uschar *auth_defer_msg         = US"reason not recorded";
 658 uschar *auth_defer_user_msg    = US"";
 659 uschar *auth_vars[AUTH_VARS];
 660 int     auto_thaw              = 0;
 661 #ifdef WITH_CONTENT_SCAN
 662 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 663 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 664 #endif
 665
 666 #if BASE_62 == 62
 667 uschar *base62_chars=
 668     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 669 #else
 670 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 671 #endif
 672
 673 uschar *bi_command             = NULL;
 674 uschar *big_buffer             = NULL;
 675 int     big_buffer_size        = BIG_BUFFER_SIZE;
 676 #ifdef EXPERIMENTAL_BRIGHTMAIL
 677 uschar *bmi_alt_location       = NULL;
 678 uschar *bmi_base64_tracker_verdict = NULL;
 679 uschar *bmi_base64_verdict     = NULL;
 680 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 681 int     bmi_deliver            = 1;
 682 int     bmi_run                = 0;
 683 uschar *bmi_verdicts           = NULL;
 684 #endif
 685 int     bsmtp_transaction_linecount = 0;
 686 int     body_8bitmime          = 0;
 687 int     body_linecount         = 0;
 688 int     body_zerocount         = 0;
 689 uschar *bounce_message_file    = NULL;
 690 uschar *bounce_message_text    = NULL;
 691 uschar *bounce_recipient       = NULL;
 692 int     bounce_return_linesize_limit = 998;
 693 int     bounce_return_size_limit = 100*1024;
 694 uschar *bounce_sender_authentication = NULL;
 695
 696 uschar *callout_address        = NULL;
 697 int     callout_cache_domain_positive_expire = 7*24*60*60;
 698 int     callout_cache_domain_negative_expire = 3*60*60;
 699 int     callout_cache_positive_expire = 24*60*60;
 700 int     callout_cache_negative_expire = 2*60*60;
 701 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 702 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 703 int     check_log_inodes       = 100;
 704 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 705 int     check_spool_inodes     = 100;
 706 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 707
 708 uschar *chunking_advertise_hosts = US"*";
 709 unsigned chunking_datasize     = 0;
 710 unsigned chunking_data_left    = 0;
 711 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 712 const pcre *regex_CHUNKING     = NULL;
 713
 714 #ifdef EXPERIMENTAL_ESMTP_LIMITS
 715 const pcre *regex_LIMITS        = NULL;
 716 #endif
 717
 718 uschar *client_authenticator   = NULL;
 719 uschar *client_authenticated_id = NULL;
 720 uschar *client_authenticated_sender = NULL;
 721 int     clmacro_count          = 0;
 722 uschar *clmacros[MAX_CLMACROS];
 723 FILE   *config_file            = NULL;
 724 const uschar *config_filename  = NULL;
 725 int     config_lineno          = 0;
 726 #ifdef CONFIGURE_GROUP
 727 gid_t   config_gid             = CONFIGURE_GROUP;
 728 #else
 729 gid_t   config_gid             = 0;
 730 #endif
 731 uschar *config_main_filelist   = US CONFIGURE_FILE
 732                          "\0<-----------Space to patch configure_filename->";
 733 uschar *config_main_filename   = NULL;
 734 uschar *config_main_directory  = NULL;
 735
 736 #ifdef CONFIGURE_OWNER
 737 uid_t   config_uid             = CONFIGURE_OWNER;
 738 #else
 739 uid_t   config_uid             = 0;
 740 #endif
 741
 742 int     connection_max_messages= -1;
 743 uschar *continue_proxy_cipher  = NULL;
 744 BOOL    continue_proxy_dane    = FALSE;
 745 uschar *continue_proxy_sni     = NULL;
 746 uschar *continue_hostname      = NULL;
 747 uschar *continue_host_address  = NULL;
 748 int     continue_sequence      = 1;
 749 uschar *continue_transport     = NULL;
 750 #ifdef EXPERIMENTAL_ESMTP_LIMITS
 751 unsigned continue_limit_mail   = 0;
 752 unsigned continue_limit_rcpt   = 0;
 753 unsigned continue_limit_rcptdom= 0;
 754 #endif
 755
 756 uschar *csa_status             = NULL;
 757 cut_t   cutthrough = {
 758   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 759   .delivery =           FALSE,                          /* when to attempt */
 760   .defer_pass =         FALSE,                          /* on defer: spool locally */
 761   .is_tls =             FALSE,                          /* not a TLS conn yet */
 762   .cctx =               {.sock = -1},                   /* open connection */
 763   .nrcpt =              0,                              /* number of addresses */
 764 };
 765
 766 int     daemon_notifier_fd     = -1;
 767 uschar *daemon_smtp_port       = US"smtp";
 768 int     daemon_startup_retries = 9;
 769 int     daemon_startup_sleep   = 30;
 770
 771 #ifdef EXPERIMENTAL_DCC
 772 uschar *dcc_header             = NULL;
 773 uschar *dcc_result             = NULL;
 774 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 775 uschar *dccifd_options         = US"header";
 776 #endif
 777
 778 int     debug_fd               = -1;
 779 FILE   *debug_file             = NULL;
 780 int     debug_notall[]         = {
 781   Di_memory,
 782   Di_noutf8,
 783   -1
 784 };
 785 bit_table debug_options[]      = { /* must be in alphabetical order and use
 786                                  only the enum values from macro.h */
 787   BIT_TABLE(D, acl),
 788   BIT_TABLE(D, all),
 789   BIT_TABLE(D, auth),
 790   BIT_TABLE(D, deliver),
 791   BIT_TABLE(D, dns),
 792   BIT_TABLE(D, dnsbl),
 793   BIT_TABLE(D, exec),
 794   BIT_TABLE(D, expand),
 795   BIT_TABLE(D, filter),
 796   BIT_TABLE(D, hints_lookup),
 797   BIT_TABLE(D, host_lookup),
 798   BIT_TABLE(D, ident),
 799   BIT_TABLE(D, interface),
 800   BIT_TABLE(D, lists),
 801   BIT_TABLE(D, load),
 802   BIT_TABLE(D, local_scan),
 803   BIT_TABLE(D, lookup),
 804   BIT_TABLE(D, memory),
 805   BIT_TABLE(D, noutf8),
 806   BIT_TABLE(D, pid),
 807   BIT_TABLE(D, process_info),
 808   BIT_TABLE(D, queue_run),
 809   BIT_TABLE(D, receive),
 810   BIT_TABLE(D, resolver),
 811   BIT_TABLE(D, retry),
 812   BIT_TABLE(D, rewrite),
 813   BIT_TABLE(D, route),
 814   BIT_TABLE(D, timestamp),
 815   BIT_TABLE(D, tls),
 816   BIT_TABLE(D, transport),
 817   BIT_TABLE(D, uid),
 818   BIT_TABLE(D, verify),
 819 };
 820 int     debug_options_count    = nelem(debug_options);
 821
 822 unsigned int debug_selector    = 0;
 823 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 824 uschar *delay_warning_condition=
 825   US"${if or {"
 826             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 827             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 828             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 829             "} {no}{yes}}";
 830 uschar *deliver_address_data   = NULL;
 831 int     deliver_datafile       = -1;
 832 const uschar *deliver_domain   = NULL;
 833 uschar *deliver_domain_data    = NULL;
 834 const uschar *deliver_domain_orig = NULL;
 835 const uschar *deliver_domain_parent = NULL;
 836 time_t  deliver_frozen_at      = 0;
 837 uschar *deliver_home           = NULL;
 838 const uschar *deliver_host     = NULL;
 839 const uschar *deliver_host_address = NULL;
 840 int     deliver_host_port      = 0;
 841 uschar *deliver_in_buffer      = NULL;
 842 ino_t   deliver_inode          = 0;
 843 uschar *deliver_localpart      = NULL;
 844 uschar *deliver_localpart_data = NULL;
 845 uschar *deliver_localpart_orig = NULL;
 846 uschar *deliver_localpart_parent = NULL;
 847 uschar *deliver_localpart_prefix = NULL;
 848 uschar *deliver_localpart_prefix_v = NULL;
 849 uschar *deliver_localpart_suffix = NULL;
 850 uschar *deliver_localpart_suffix_v = NULL;
 851 uschar *deliver_out_buffer     = NULL;
 852 int     deliver_queue_load_max = -1;
 853 address_item  *deliver_recipients = NULL;
 854 uschar *deliver_selectstring   = NULL;
 855 uschar *deliver_selectstring_sender = NULL;
 856
 857 #ifndef DISABLE_DKIM
 858 unsigned dkim_collect_input      = 0;
 859 uschar *dkim_cur_signer          = NULL;
 860 int     dkim_key_length          = 0;
 861 void   *dkim_signatures          = NULL;
 862 uschar *dkim_signers             = NULL;
 863 uschar *dkim_signing_domain      = NULL;
 864 uschar *dkim_signing_selector    = NULL;
 865 uschar *dkim_verify_hashes       = US"sha256:sha512";
 866 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 867 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
 868 BOOL    dkim_verify_minimal      = FALSE;
 869 uschar *dkim_verify_overall      = NULL;
 870 uschar *dkim_verify_signers      = US"$dkim_signers";
 871 uschar *dkim_verify_status       = NULL;
 872 uschar *dkim_verify_reason       = NULL;
 873 #endif
 874 #ifdef SUPPORT_DMARC
 875 uschar *dmarc_domain_policy     = NULL;
 876 uschar *dmarc_forensic_sender   = NULL;
 877 uschar *dmarc_history_file      = NULL;
 878 uschar *dmarc_status            = NULL;
 879 uschar *dmarc_status_text       = NULL;
 880 uschar *dmarc_tld_file          = NULL;
 881 uschar *dmarc_used_domain       = NULL;
 882 #endif
 883
 884 uschar *dns_again_means_nonexist = NULL;
 885 int     dns_csa_search_limit   = 5;
 886 int     dns_cname_loops        = 1;
 887 #ifdef SUPPORT_DANE
 888 int     dns_dane_ok            = -1;
 889 #endif
 890 uschar *dns_ipv4_lookup        = NULL;
 891 int     dns_retrans            = 0;
 892 int     dns_retry              = 0;
 893 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 894 uschar *dns_trust_aa           = NULL;
 895 int     dns_use_edns0          = -1; /* <0 = not coerced */
 896 uschar *dnslist_domain         = NULL;
 897 uschar *dnslist_matched        = NULL;
 898 uschar *dnslist_text           = NULL;
 899 uschar *dnslist_value          = NULL;
 900 tree_node *domainlist_anchor   = NULL;
 901 int     domainlist_count       = 0;
 902 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 903
 904 int     errno_quota            = ERRNO_QUOTA;
 905 uschar *errors_copy            = NULL;
 906 int     error_handling         = ERRORS_SENDER;
 907 uschar *errors_reply_to        = NULL;
 908 int     errors_sender_rc       = EXIT_FAILURE;
 909 #ifndef DISABLE_EVENT
 910 uschar *event_action             = NULL;        /* expansion for delivery events */
 911 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 912 int     event_defer_errno        = 0;
 913 const uschar *event_name         = NULL;        /* event name variable */
 914 #endif
 915
 916
 917 gid_t   exim_gid               = EXIM_GID;
 918 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 919                         "\0<---------------Space to patch exim_path->";
 920 uid_t   exim_uid               = EXIM_UID;
 921 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 922 int     expand_forbid          = 0;
 923 int     expand_nlength[EXPAND_MAXN+1];
 924 int     expand_nmax            = -1;
 925 uschar *expand_nstring[EXPAND_MAXN+1];
 926 uschar *expand_string_message;
 927 uschar *extra_local_interfaces = NULL;
 928
 929 int     fake_response          = OK;
 930 uschar *fake_response_text     = US"Your message has been rejected but is "
 931                                    "being kept for evaluation.\nIf it was a "
 932                                    "legitimate message, it may still be "
 933                                    "delivered to the target recipient(s).";
 934 int     filter_n[FILTER_VARIABLE_COUNT];
 935 int     filter_sn[FILTER_VARIABLE_COUNT];
 936 int     filter_test            = FTEST_NONE;
 937 uschar *filter_test_sfile      = NULL;
 938 uschar *filter_test_ufile      = NULL;
 939 uschar *filter_thisaddress     = NULL;
 940 int     finduser_retries       = 0;
 941 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 942 uschar *freeze_tell            = NULL;
 943 uschar *freeze_tell_config     = NULL;
 944 uschar *fudged_queue_times     = US"";
 945
 946 uschar *gecos_name             = NULL;
 947 uschar *gecos_pattern          = NULL;
 948 rewrite_rule  *global_rewrite_rules = NULL;
 949
 950 volatile sig_atomic_t had_command_timeout = 0;
 951 volatile sig_atomic_t had_command_sigterm = 0;
 952 volatile sig_atomic_t had_data_timeout    = 0;
 953 volatile sig_atomic_t had_data_sigint     = 0;
 954 uschar *headers_charset        = US HEADERS_CHARSET;
 955 int     header_insert_maxlen   = 64 * 1024;
 956 header_line  *header_last      = NULL;
 957 header_line  *header_list      = NULL;
 958 int     header_maxsize         = HEADER_MAXSIZE;
 959 int     header_line_maxsize    = 0;
 960
 961 header_name header_names[] = {
 962   /* name               len     allow_resent    htype */
 963   { US"bcc",            3,      TRUE,           htype_bcc },
 964   { US"cc",             2,      TRUE,           htype_cc },
 965   { US"date",           4,      TRUE,           htype_date },
 966   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 967   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 968   { US"from",           4,      TRUE,           htype_from },
 969   { US"message-id",    10,      TRUE,           htype_id },
 970   { US"received",       8,      FALSE,          htype_received },
 971   { US"reply-to",       8,      FALSE,          htype_reply_to },
 972   { US"return-path",   11,      FALSE,          htype_return_path },
 973   { US"sender",         6,      TRUE,           htype_sender },
 974   { US"subject",        7,      FALSE,          htype_subject },
 975   { US"to",             2,      TRUE,           htype_to }
 976 };
 977
 978 int header_names_size          = nelem(header_names);
 979
 980 uschar *helo_accept_junk_hosts = NULL;
 981 uschar *helo_allow_chars       = US"";
 982 uschar *helo_lookup_domains    = US"@ : @[]";
 983 uschar *helo_try_verify_hosts  = NULL;
 984 uschar *helo_verify_hosts      = NULL;
 985 const uschar *hex_digits       = CUS"0123456789abcdef";
 986 uschar *hold_domains           = NULL;
 987 uschar *host_data              = NULL;
 988 uschar *host_lookup            = NULL;
 989 uschar *host_lookup_order      = US"bydns:byaddr";
 990 uschar *host_lookup_msg        = US"";
 991 int     host_number            = 0;
 992 uschar *host_number_string     = NULL;
 993 uschar *host_reject_connection = NULL;
 994 tree_node *hostlist_anchor     = NULL;
 995 int     hostlist_count         = 0;
 996 uschar *hosts_treat_as_local   = NULL;
 997 uschar *hosts_connection_nolog = NULL;
 998
 999 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
1000 uschar *ignore_fromline_hosts  = NULL;
1001 int     inetd_wait_timeout     = -1;
1002 uschar *initial_cwd            = NULL;
1003 uschar *interface_address      = NULL;
1004 int     interface_port         = -1;
1005 uschar *iterate_item           = NULL;
1006
1007 int     journal_fd             = -1;
1008
1009 uschar *keep_environment       = NULL;
1010
1011 int     keep_malformed         = 4*24*60*60;    /* 4 days */
1012
1013 uschar *eldap_dn               = NULL;
1014 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1015 uschar *limits_advertise_hosts = US"*";
1016 #endif
1017 int     load_average           = -2;
1018 uschar *local_from_prefix      = NULL;
1019 uschar *local_from_suffix      = NULL;
1020
1021 #if HAVE_IPV6
1022 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
1023 #else
1024 uschar *local_interfaces       = US"0.0.0.0";
1025 #endif
1026
1027 #ifdef HAVE_LOCAL_SCAN
1028 uschar *local_scan_data        = NULL;
1029 int     local_scan_timeout     = 5*60;
1030 #endif
1031 gid_t   local_user_gid         = (gid_t)(-1);
1032 uid_t   local_user_uid         = (uid_t)(-1);
1033
1034 tree_node *localpartlist_anchor= NULL;
1035 int     localpartlist_count    = 0;
1036 uschar *log_buffer             = NULL;
1037
1038 int     log_default[]          = { /* for initializing log_selector */
1039   Li_acl_warn_skipped,
1040   Li_connection_reject,
1041   Li_delay_delivery,
1042   Li_dkim,
1043   Li_dnslist_defer,
1044   Li_etrn,
1045   Li_host_lookup_failed,
1046   Li_lost_incoming_connection,
1047   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1048   Li_msg_id,
1049   Li_queue_run,
1050   Li_queue_time_exclusive,
1051   Li_rejected_header,
1052   Li_retry_defer,
1053   Li_sender_verify_fail,
1054   Li_size_reject,
1055   Li_skip_delivery,
1056   Li_smtp_confirmation,
1057   Li_tls_certificate_verified,
1058   Li_tls_cipher,
1059   -1
1060 };
1061
1062 uschar *log_file_path          = US LOG_FILE_PATH
1063                            "\0<--------------Space to patch log_file_path->";
1064
1065 int     log_notall[]           = {
1066   -1
1067 };
1068 bit_table log_options[]        = { /* must be in alphabetical order,
1069                                 with definitions from enum logbit. */
1070   BIT_TABLE(L, 8bitmime),
1071   BIT_TABLE(L, acl_warn_skipped),
1072   BIT_TABLE(L, address_rewrite),
1073   BIT_TABLE(L, all),
1074   BIT_TABLE(L, all_parents),
1075   BIT_TABLE(L, arguments),
1076   BIT_TABLE(L, connection_reject),
1077   BIT_TABLE(L, delay_delivery),
1078   BIT_TABLE(L, deliver_time),
1079   BIT_TABLE(L, delivery_size),
1080 #ifndef DISABLE_DKIM
1081   BIT_TABLE(L, dkim),
1082   BIT_TABLE(L, dkim_verbose),
1083 #endif
1084   BIT_TABLE(L, dnslist_defer),
1085   BIT_TABLE(L, dnssec),
1086   BIT_TABLE(L, etrn),
1087   BIT_TABLE(L, host_lookup_failed),
1088   BIT_TABLE(L, ident_timeout),
1089   BIT_TABLE(L, incoming_interface),
1090   BIT_TABLE(L, incoming_port),
1091   BIT_TABLE(L, lost_incoming_connection),
1092   BIT_TABLE(L, millisec),
1093   BIT_TABLE(L, msg_id),
1094   BIT_TABLE(L, msg_id_created),
1095   BIT_TABLE(L, outgoing_interface),
1096   BIT_TABLE(L, outgoing_port),
1097   BIT_TABLE(L, pid),
1098   BIT_TABLE(L, pipelining),
1099   BIT_TABLE(L, protocol_detail),
1100 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1101   BIT_TABLE(L, proxy),
1102 #endif
1103   BIT_TABLE(L, queue_run),
1104   BIT_TABLE(L, queue_time),
1105   BIT_TABLE(L, queue_time_exclusive),
1106   BIT_TABLE(L, queue_time_overall),
1107   BIT_TABLE(L, receive_time),
1108   BIT_TABLE(L, received_recipients),
1109   BIT_TABLE(L, received_sender),
1110   BIT_TABLE(L, rejected_header),
1111   { US"rejected_headers", Li_rejected_header },
1112   BIT_TABLE(L, retry_defer),
1113   BIT_TABLE(L, return_path_on_delivery),
1114   BIT_TABLE(L, sender_on_delivery),
1115   BIT_TABLE(L, sender_verify_fail),
1116   BIT_TABLE(L, size_reject),
1117   BIT_TABLE(L, skip_delivery),
1118   BIT_TABLE(L, smtp_confirmation),
1119   BIT_TABLE(L, smtp_connection),
1120   BIT_TABLE(L, smtp_incomplete_transaction),
1121   BIT_TABLE(L, smtp_mailauth),
1122   BIT_TABLE(L, smtp_no_mail),
1123   BIT_TABLE(L, smtp_protocol_error),
1124   BIT_TABLE(L, smtp_syntax_error),
1125   BIT_TABLE(L, subject),
1126   BIT_TABLE(L, tls_certificate_verified),
1127   BIT_TABLE(L, tls_cipher),
1128   BIT_TABLE(L, tls_peerdn),
1129   BIT_TABLE(L, tls_resumption),
1130   BIT_TABLE(L, tls_sni),
1131   BIT_TABLE(L, unknown_in_list),
1132 };
1133 int     log_options_count      = nelem(log_options);
1134
1135 int     log_reject_target      = 0;
1136 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1137 uschar *log_selector_string    = NULL;
1138 FILE   *log_stderr             = NULL;
1139 uschar *login_sender_address   = NULL;
1140 uschar *lookup_dnssec_authenticated = NULL;
1141 int     lookup_open_max        = 25;
1142 uschar *lookup_value           = NULL;
1143
1144 macro_item *macros_user        = NULL;
1145 uschar *mailstore_basename     = NULL;
1146 #ifdef WITH_CONTENT_SCAN
1147 uschar *malware_name           = NULL;  /* Virus Name */
1148 #endif
1149 int     max_received_linelength= 0;
1150 int     max_username_length    = 0;
1151 int     message_age            = 0;
1152 uschar *message_body           = NULL;
1153 uschar *message_body_end       = NULL;
1154 int     message_body_size      = 0;
1155 int     message_body_visible   = 500;
1156 int     message_ended          = END_NOTSTARTED;
1157 uschar *message_headers        = NULL;
1158 uschar *message_id;
1159 uschar *message_id_domain      = NULL;
1160 uschar *message_id_text        = NULL;
1161 struct timeval message_id_tv   = { 0, 0 };
1162 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1163 uschar *message_id_external;
1164 int     message_linecount      = 0;
1165 int     message_size           = 0;
1166 uschar *message_size_limit     = US"50M";
1167 #ifdef SUPPORT_I18N
1168 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1169 #endif
1170 uschar  message_subdir[2]      = { 0, 0 };
1171 uschar *message_reference      = NULL;
1172
1173 /* MIME ACL expandables */
1174 #ifdef WITH_CONTENT_SCAN
1175 int     mime_anomaly_level     = 0;
1176 const uschar *mime_anomaly_text      = NULL;
1177 uschar *mime_boundary          = NULL;
1178 uschar *mime_charset           = NULL;
1179 uschar *mime_content_description = NULL;
1180 uschar *mime_content_disposition = NULL;
1181 uschar *mime_content_id        = NULL;
1182 unsigned int mime_content_size = 0;
1183 uschar *mime_content_transfer_encoding = NULL;
1184 uschar *mime_content_type      = NULL;
1185 uschar *mime_decoded_filename  = NULL;
1186 uschar *mime_filename          = NULL;
1187 int     mime_is_multipart      = 0;
1188 int     mime_is_coverletter    = 0;
1189 int     mime_is_rfc822         = 0;
1190 int     mime_part_count        = -1;
1191 #endif
1192
1193 uid_t  *never_users            = NULL;
1194 uschar *notifier_socket        = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1195
1196 const int on                   = 1;     /* for setsockopt */
1197 const int off                  = 0;
1198
1199 uid_t   original_euid;
1200 gid_t   originator_gid;
1201 uschar *originator_login       = NULL;
1202 uschar *originator_name        = NULL;
1203 uid_t   originator_uid;
1204 uschar *override_local_interfaces = NULL;
1205 uschar *override_pid_file_path = NULL;
1206
1207 uschar *percent_hack_domains   = NULL;
1208 uschar *pid_file_path          = US PID_FILE_PATH
1209                            "\0<--------------Space to patch pid_file_path->";
1210 #ifndef DISABLE_PIPE_CONNECT
1211 uschar *pipe_connect_advertise_hosts = US"*";
1212 #endif
1213 uschar *pipelining_advertise_hosts = US"*";
1214 uschar *primary_hostname       = NULL;
1215 uschar *process_info;
1216 int     process_info_len       = 0;
1217 uschar *process_log_path       = NULL;
1218 const uschar *process_purpose  = US"fresh-exec";
1219
1220 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1221 uschar *hosts_proxy            = NULL;
1222 uschar *proxy_external_address = NULL;
1223 int     proxy_external_port    = 0;
1224 uschar *proxy_local_address    = NULL;
1225 int     proxy_local_port       = 0;
1226 int     proxy_protocol_timeout = 3;
1227 #endif
1228
1229 uschar *prvscheck_address      = NULL;
1230 uschar *prvscheck_keynum       = NULL;
1231 uschar *prvscheck_result       = NULL;
1232
1233
1234 const uschar *qualify_domain_recipient = NULL;
1235 uschar *qualify_domain_sender  = NULL;
1236 uschar *queue_domains          = NULL;
1237 int     queue_interval         = -1;
1238 uschar *queue_name             = US"";
1239 uschar *queue_name_dest        = NULL;
1240 uschar *queue_only_file        = NULL;
1241 int     queue_only_load        = -1;
1242 uschar *queue_run_max          = US"5";
1243 pid_t   queue_run_pid          = (pid_t)0;
1244 int     queue_run_pipe         = -1;
1245 unsigned queue_size            = 0;
1246 time_t  queue_size_next        = 0;
1247 uschar *queue_smtp_domains     = NULL;
1248
1249 uint32_t random_seed           = 0;
1250 tree_node *ratelimiters_cmd    = NULL;
1251 tree_node *ratelimiters_conn   = NULL;
1252 tree_node *ratelimiters_mail   = NULL;
1253 uschar *raw_active_hostname    = NULL;
1254 uschar *raw_sender             = NULL;
1255 uschar **raw_recipients        = NULL;
1256 int     raw_recipients_count   = 0;
1257
1258 int     rcpt_count             = 0;
1259 int     rcpt_fail_count        = 0;
1260 int     rcpt_defer_count       = 0;
1261 gid_t   real_gid;
1262 uid_t   real_uid;
1263 int     receive_linecount      = 0;
1264 int     receive_messagecount   = 0;
1265 int     receive_timeout        = 0;
1266 int     received_count         = 0;
1267 uschar *received_for           = NULL;
1268
1269 /*  This is the default text for Received headers generated by Exim. The
1270 date  will be automatically added on the end. */
1271
1272 uschar *received_header_text   = US
1273      "Received: "
1274      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1275        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1276          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1277      "by $primary_hostname "
1278      "${if def:received_protocol {with $received_protocol }}"
1279 #ifndef DISABLE_TLS
1280      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1281      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1282 #endif
1283      "(Exim $version_number)\n\t"
1284      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1285      "id $message_exim_id"
1286      "${if def:received_for {\n\tfor $received_for}}"
1287      "\0<---------------Space to patch received_header_text->";
1288
1289 int     received_headers_max   = 30;
1290 uschar *received_protocol      = NULL;
1291 struct timeval received_time   = { 0, 0 };
1292 struct timeval received_time_complete = { 0, 0 };
1293 uschar *recipient_data         = NULL;
1294 uschar *recipient_unqualified_hosts = NULL;
1295 uschar *recipient_verify_failure = NULL;
1296 int     recipients_count       = 0;
1297 recipient_item  *recipients_list = NULL;
1298 int     recipients_list_max    = 0;
1299 int     recipients_max         = 50000;
1300 const pcre *regex_AUTH         = NULL;
1301 const pcre *regex_check_dns_names = NULL;
1302 const pcre *regex_From         = NULL;
1303 const pcre *regex_IGNOREQUOTA  = NULL;
1304 const pcre *regex_PIPELINING   = NULL;
1305 const pcre *regex_SIZE         = NULL;
1306 #ifndef DISABLE_PIPE_CONNECT
1307 const pcre *regex_EARLY_PIPE   = NULL;
1308 #endif
1309 const pcre *regex_ismsgid      = NULL;
1310 const pcre *regex_smtp_code    = NULL;
1311 uschar *regex_vars[REGEX_VARS];
1312 #ifdef WHITELIST_D_MACROS
1313 const pcre *regex_whitelisted_macro = NULL;
1314 #endif
1315 #ifdef WITH_CONTENT_SCAN
1316 uschar *regex_match_string     = NULL;
1317 #endif
1318 int     remote_delivery_count  = 0;
1319 int     remote_max_parallel    = 2;
1320 uschar *remote_sort_domains    = NULL;
1321 int     retry_data_expire      = 7*24*60*60;
1322 int     retry_interval_max     = 24*60*60;
1323 int     retry_maximum_timeout  = 0;        /* set from retry config */
1324 retry_config  *retries         = NULL;
1325 uschar *return_path            = NULL;
1326 int     rewrite_existflags     = 0;
1327 uschar *rfc1413_hosts          = US"@[]";
1328 int     rfc1413_query_timeout  = 0;
1329 uid_t   root_gid               = ROOT_GID;
1330 uid_t   root_uid               = ROOT_UID;
1331
1332 router_instance  *routers  = NULL;
1333 router_instance  router_defaults = {
1334     .next =                     NULL,
1335     .name =                     NULL,
1336     .info =                     NULL,
1337     .options_block =            NULL,
1338     .driver_name =              NULL,
1339
1340     .address_data =             NULL,
1341 #ifdef EXPERIMENTAL_BRIGHTMAIL
1342     .bmi_rule =                 NULL,
1343 #endif
1344     .cannot_route_message =     NULL,
1345     .condition =                NULL,
1346     .current_directory =        NULL,
1347     .debug_string =             NULL,
1348     .domains =                  NULL,
1349     .errors_to =                NULL,
1350     .expand_gid =               NULL,
1351     .expand_uid =               NULL,
1352     .expand_more =              NULL,
1353     .expand_unseen =            NULL,
1354     .extra_headers =            NULL,
1355     .fallback_hosts =           NULL,
1356     .home_directory =           NULL,
1357     .ignore_target_hosts =      NULL,
1358     .local_parts =              NULL,
1359     .pass_router_name =         NULL,
1360     .prefix =                   NULL,
1361     .redirect_router_name =     NULL,
1362     .remove_headers =           NULL,
1363     .require_files =            NULL,
1364     .router_home_directory =    NULL,
1365     .self =                     US"freeze",
1366     .senders =                  NULL,
1367     .suffix =                   NULL,
1368     .translate_ip_address =     NULL,
1369     .transport_name =           NULL,
1370
1371     .address_test =             TRUE,
1372 #ifdef EXPERIMENTAL_BRIGHTMAIL
1373     .bmi_deliver_alternate =    FALSE,
1374     .bmi_deliver_default =      FALSE,
1375     .bmi_dont_deliver =         FALSE,
1376 #endif
1377     .expn =                     TRUE,
1378     .caseful_local_part =       FALSE,
1379     .check_local_user =         FALSE,
1380     .disable_logging =          FALSE,
1381     .fail_verify_recipient =    FALSE,
1382     .fail_verify_sender =       FALSE,
1383     .gid_set =                  FALSE,
1384     .initgroups =               FALSE,
1385     .log_as_local =             TRUE_UNSET,
1386     .more =                     TRUE,
1387     .pass_on_timeout =          FALSE,
1388     .prefix_optional =          FALSE,
1389     .repeat_use =               TRUE,
1390     .retry_use_local_part =     TRUE_UNSET,
1391     .same_domain_copy_routing = FALSE,
1392     .self_rewrite =             FALSE,
1393     .set =                      NULL,
1394     .suffix_optional =          FALSE,
1395     .verify_only =              FALSE,
1396     .verify_recipient =         TRUE,
1397     .verify_sender =            TRUE,
1398     .uid_set =                  FALSE,
1399     .unseen =                   FALSE,
1400     .dsn_lasthop =              FALSE,
1401
1402     .self_code =                self_freeze,
1403     .uid =                      (uid_t)(-1),
1404     .gid =                      (gid_t)(-1),
1405
1406     .fallback_hostlist =        NULL,
1407     .transport =                NULL,
1408     .pass_router =              NULL,
1409     .redirect_router =          NULL,
1410
1411     .dnssec =                   { .request= US"*", .require=NULL },
1412 };
1413
1414 uschar *router_name            = NULL;
1415 tree_node *router_var          = NULL;
1416
1417 ip_address_item *running_interfaces = NULL;
1418
1419 /* This is a weird one. The following string gets patched in the binary by the
1420 script that sets up a copy of Exim for running in the test harness. It seems
1421 that compilers are now clever, and share constant strings if they can.
1422 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1423 make use of the end of this string in order to save space. So the patching then
1424 wrecks this. We defeat this optimization by adding some additional characters
1425 onto the end of the string. */
1426
1427 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1428
1429 int     runrc                  = 0;
1430
1431 uschar *search_error_message   = NULL;
1432 uschar *self_hostname          = NULL;
1433 uschar *sender_address         = NULL;
1434 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1435 uschar *sender_address_data    = NULL;
1436 uschar *sender_address_unrewritten = NULL;
1437 uschar *sender_data            = NULL;
1438 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1439 uschar *sender_fullhost        = NULL;
1440 uschar *sender_helo_name       = NULL;
1441 uschar **sender_host_aliases   = &no_aliases;
1442 uschar *sender_host_address    = NULL;
1443 uschar *sender_host_authenticated = NULL;
1444 uschar *sender_host_auth_pubname  = NULL;
1445 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1446 uschar *sender_host_name       = NULL;
1447 int     sender_host_port       = 0;
1448 uschar *sender_ident           = NULL;
1449 uschar *sender_rate            = NULL;
1450 uschar *sender_rate_limit      = NULL;
1451 uschar *sender_rate_period     = NULL;
1452 uschar *sender_rcvhost         = NULL;
1453 uschar *sender_unqualified_hosts = NULL;
1454 uschar *sender_verify_failure = NULL;
1455 address_item *sender_verified_list  = NULL;
1456 address_item *sender_verified_failed = NULL;
1457 int     sender_verified_rc     = -1;
1458 uschar *sending_ip_address     = NULL;
1459 int     sending_port           = -1;
1460 SIGNAL_BOOL sigalrm_seen       = FALSE;
1461 const uschar *sigalarm_setter  = NULL;
1462 uschar **sighup_argv           = NULL;
1463 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1464 int     smtp_accept_count      = 0;
1465 int     smtp_accept_max        = 20;
1466 int     smtp_accept_max_nonmail= 10;
1467 uschar *smtp_accept_max_nonmail_hosts = US"*";
1468 uschar *smtp_accept_max_per_connection = US"1000";
1469 uschar *smtp_accept_max_per_host = NULL;
1470 int     smtp_accept_queue      = 0;
1471 int     smtp_accept_queue_per_connection = 10;
1472 int     smtp_accept_reserve    = 0;
1473 uschar *smtp_active_hostname   = NULL;
1474 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1475                              "Exim $version_number $tod_full"
1476                              "\0<---------------Space to patch smtp_banner->";
1477 int     smtp_ch_index          = 0;
1478 uschar *smtp_cmd_argument      = NULL;
1479 uschar *smtp_cmd_buffer        = NULL;
1480 struct timeval smtp_connection_start  = {0,0};
1481 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1482 int     smtp_connect_backlog   = 20;
1483 double  smtp_delay_mail        = 0.0;
1484 double  smtp_delay_rcpt        = 0.0;
1485 FILE   *smtp_in                = NULL;
1486 int     smtp_load_reserve      = -1;
1487 int     smtp_mailcmd_count     = 0;
1488 FILE   *smtp_out               = NULL;
1489 uschar *smtp_etrn_command      = NULL;
1490 int     smtp_max_synprot_errors= 3;
1491 int     smtp_max_unknown_commands = 3;
1492 uschar *smtp_notquit_reason    = NULL;
1493 unsigned smtp_peer_options     = 0;
1494 unsigned smtp_peer_options_wrap= 0;
1495 uschar *smtp_ratelimit_hosts   = NULL;
1496 uschar *smtp_ratelimit_mail    = NULL;
1497 uschar *smtp_ratelimit_rcpt    = NULL;
1498 uschar *smtp_read_error        = US"";
1499 int     smtp_receive_timeout   = 5*60;
1500 uschar *smtp_receive_timeout_s = NULL;
1501 uschar *smtp_reserve_hosts     = NULL;
1502 int     smtp_rlm_base          = 0;
1503 double  smtp_rlm_factor        = 0.0;
1504 int     smtp_rlm_limit         = 0;
1505 int     smtp_rlm_threshold     = INT_MAX;
1506 int     smtp_rlr_base          = 0;
1507 double  smtp_rlr_factor        = 0.0;
1508 int     smtp_rlr_limit         = 0;
1509 int     smtp_rlr_threshold     = INT_MAX;
1510 #ifdef SUPPORT_I18N
1511 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1512 #endif
1513
1514 #ifdef WITH_CONTENT_SCAN
1515 uschar *spamd_address          = US"127.0.0.1 783";
1516 uschar *spam_bar               = NULL;
1517 uschar *spam_report            = NULL;
1518 uschar *spam_action            = NULL;
1519 uschar *spam_score             = NULL;
1520 uschar *spam_score_int         = NULL;
1521 #endif
1522 #ifdef SUPPORT_SPF
1523 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1524 uschar *spf_header_comment     = NULL;
1525 uschar *spf_received           = NULL;
1526 uschar *spf_result             = NULL;
1527 uschar *spf_smtp_comment       = NULL;
1528 uschar *spf_smtp_comment_template
1529                     /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1530                                = US"Please%_see%_http://www.open-spf.org/Why";
1531
1532 #endif
1533
1534 FILE   *spool_data_file        = NULL;
1535 uschar *spool_directory        = US SPOOL_DIRECTORY
1536                            "\0<--------------Space to patch spool_directory->";
1537 #ifdef EXPERIMENTAL_SRS_ALT
1538 uschar *srs_config             = NULL;
1539 uschar *srs_db_address         = NULL;
1540 uschar *srs_db_key             = NULL;
1541 int     srs_hashlength         = 6;
1542 int     srs_hashmin            = -1;
1543 int     srs_maxage             = 31;
1544 uschar *srs_orig_recipient     = NULL;
1545 uschar *srs_orig_sender        = NULL;
1546 uschar *srs_recipient          = NULL;
1547 uschar *srs_secrets            = NULL;
1548 uschar *srs_status             = NULL;
1549 #endif
1550 #ifdef SUPPORT_SRS
1551 uschar *srs_recipient          = NULL;
1552 #endif
1553 int     string_datestamp_offset= -1;
1554 int     string_datestamp_length= 0;
1555 int     string_datestamp_type  = -1;
1556 const uschar *submission_domain = NULL;
1557 const uschar *submission_name  = NULL;
1558 int     syslog_facility        = LOG_MAIL;
1559 uschar *syslog_processname     = US"exim";
1560 uschar *system_filter          = NULL;
1561
1562 uschar *system_filter_directory_transport = NULL;
1563 uschar *system_filter_file_transport = NULL;
1564 uschar *system_filter_pipe_transport = NULL;
1565 uschar *system_filter_reply_transport = NULL;
1566
1567 gid_t   system_filter_gid      = 0;
1568 uid_t   system_filter_uid      = (uid_t)-1;
1569
1570 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1571 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1572 #ifdef USE_TCP_WRAPPERS
1573 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1574 #endif
1575 int     test_harness_load_avg  = 0;
1576 int     thismessage_size_limit = 0;
1577 int     timeout_frozen_after   = 0;
1578 #ifdef MEASURE_TIMING
1579 struct timeval timestamp_startup;
1580 #endif
1581
1582 transport_instance  *transports = NULL;
1583
1584 transport_instance  transport_defaults = {
1585     /* All non-mentioned elements zero/NULL/FALSE */
1586     .batch_max =                1,
1587     .multi_domain =             TRUE,
1588     .max_addresses =            100,
1589     .connection_max_messages =  500,
1590     .uid =                      (uid_t)(-1),
1591     .gid =                      (gid_t)(-1),
1592     .filter_timeout =           300,
1593     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1594                                                  1 nor 0 so can detect unset */
1595 };
1596
1597 int     transport_count;
1598 uschar *transport_name          = NULL;
1599 int     transport_newlines;
1600 const uschar **transport_filter_argv  = NULL;
1601 int     transport_filter_timeout;
1602 int     transport_write_timeout= 0;
1603
1604 tree_node  *tree_dns_fails     = NULL;
1605 tree_node  *tree_duplicates    = NULL;
1606 tree_node  *tree_nonrecipients = NULL;
1607 tree_node  *tree_unusable      = NULL;
1608
1609 gid_t  *trusted_groups         = NULL;
1610 uid_t  *trusted_users          = NULL;
1611 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1612
1613 uschar *unknown_login          = NULL;
1614 uschar *unknown_username       = NULL;
1615 uschar *untrusted_set_sender   = NULL;
1616
1617 /*  A regex for matching a "From_" line in an incoming message, in the form
1618
1619     From ph10 Fri Jan  5 12:35 GMT 1996
1620
1621 which  the "mail" commands send to the MTA (undocumented, of course), or in
1622 the  form
1623
1624     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1625
1626 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1627 Because  of variations in time formats, just match up to the minutes. That
1628 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1629 so  just require one digit for hours and minutes. The weekday is also absent
1630 in  some forms. */
1631
1632 uschar *uucp_from_pattern      = US
1633    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1634    "(?:"                                          /* Non-extracting bracket */
1635    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1636    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1637    ")"                                            /* End alternation */
1638    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1639
1640 uschar *uucp_from_sender       = US"$1";
1641
1642 uschar *verify_mode            = NULL;
1643 uschar *version_copyright      =
1644  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1645    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020";
1646 uschar *version_date           = US"?";
1647 uschar *version_cnumber        = US"????";
1648 uschar *version_string         = US"?";
1649
1650 uschar *warn_message_file      = NULL;
1651 int     warning_count          = 0;
1652 uschar *warnmsg_delay          = NULL;
1653 uschar *warnmsg_recipients     = NULL;
1654
1655
1656 /*  End of globals.c */