src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2018 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  OPT_OFF(auth_instance, client_condition) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  OPT_OFF(auth_instance, set_client_id) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  OPT_OFF(auth_instance, driver_name) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  OPT_OFF(auth_instance, public_name) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  OPT_OFF(auth_instance, advertise_condition)},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  OPT_OFF(auth_instance, server_condition) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  OPT_OFF(auth_instance, server_debug_string) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  OPT_OFF(auth_instance, mail_auth_condition) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  OPT_OFF(auth_instance, set_id) }
  36 };
  37
  38 int     optionlist_auths_size = nelem(optionlist_auths);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible.  Note that these are
 102 only used for smtp connections, not for service-daemon access. */
 103
 104 tls_support tls_in = {
 105  .active =              {.sock = -1}
 106  /* all other elements zero */
 107 };
 108 tls_support tls_out = {
 109  .active =              {.sock = -1},
 110  /* all other elements zero */
 111 };
 112
 113 uschar *dsn_envid              = NULL;
 114 int     dsn_ret                = 0;
 115 const pcre  *regex_DSN         = NULL;
 116 uschar *dsn_advertise_hosts    = NULL;
 117
 118 #ifndef DISABLE_TLS
 119 BOOL    gnutls_compat_mode     = FALSE;
 120 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 121 uschar *openssl_options        = NULL;
 122 const pcre *regex_STARTTLS     = NULL;
 123 uschar *tls_advertise_hosts    = US"*";
 124 uschar *tls_certificate        = NULL;
 125 uschar *tls_crl                = NULL;
 126 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 127 that's the interop problem which has been observed: GnuTLS suggesting a higher
 128 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 129 int     tls_dh_max_bits        = 2236;
 130 uschar *tls_dhparam            = NULL;
 131 uschar *tls_eccurve            = US"auto";
 132 # ifndef DISABLE_OCSP
 133 uschar *tls_ocsp_file          = NULL;
 134 # endif
 135 uschar *tls_privatekey         = NULL;
 136 BOOL    tls_remember_esmtp     = FALSE;
 137 uschar *tls_require_ciphers    = NULL;
 138 # ifdef EXPERIMENTAL_TLS_RESUME
 139 uschar *tls_resumption_hosts   = NULL;
 140 # endif
 141 uschar *tls_try_verify_hosts   = NULL;
 142 uschar *tls_verify_certificates= US"system";
 143 uschar *tls_verify_hosts       = NULL;
 144 #else   /*DISABLE_TLS*/
 145 uschar *tls_advertise_hosts    = NULL;
 146 #endif
 147
 148 #ifndef DISABLE_PRDR
 149 /* Per Recipient Data Response variables */
 150 BOOL    prdr_enable            = FALSE;
 151 BOOL    prdr_requested         = FALSE;
 152 const pcre *regex_PRDR         = NULL;
 153 #endif
 154
 155 #ifdef SUPPORT_I18N
 156 const pcre *regex_UTF8         = NULL;
 157 #endif
 158
 159 /* Input-reading functions for messages, so we can use special ones for
 160 incoming TCP/IP. The defaults use stdin. We never need these for any
 161 stand-alone tests. */
 162
 163 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 164 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 165 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 166 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 167 int (*receive_getc)(unsigned)  = stdin_getc;
 168 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 169 void (*receive_get_cache)(void)= NULL;
 170 int (*receive_ungetc)(int)     = stdin_ungetc;
 171 int (*receive_feof)(void)      = stdin_feof;
 172 int (*receive_ferror)(void)    = stdin_ferror;
 173 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 174 #endif
 175
 176
 177 /* List of per-address expansion variables for clearing and saving/restoring
 178 when verifying one address while routing/verifying another. We have to have
 179 the size explicit, because it is referenced from more than one module. */
 180
 181 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 182   CUSS &deliver_address_data,
 183   CUSS &deliver_domain,
 184   CUSS &deliver_domain_data,
 185   CUSS &deliver_domain_orig,
 186   CUSS &deliver_domain_parent,
 187   CUSS &deliver_localpart,
 188   CUSS &deliver_localpart_data,
 189   CUSS &deliver_localpart_orig,
 190   CUSS &deliver_localpart_parent,
 191   CUSS &deliver_localpart_prefix,
 192   CUSS &deliver_localpart_suffix,
 193   CUSS (uschar **)(&deliver_recipients),
 194   CUSS &deliver_host,
 195   CUSS &deliver_home,
 196   CUSS &address_file,
 197   CUSS &address_pipe,
 198   CUSS &self_hostname,
 199   NULL };
 200
 201 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 202
 203 /******************************************************************************/
 204 /* General global variables.  Boolean flags are done as a group
 205 so that only one bit each is needed, packed, for all those we never
 206 need to take a pointer - and only a char for the rest.
 207 This means a struct, unfortunately since it clutters the sourcecode. */
 208
 209 struct global_flags f =
 210 {
 211         .acl_temp_details       = FALSE,
 212         .active_local_from_check = FALSE,
 213         .active_local_sender_retain = FALSE,
 214         .address_test_mode      = FALSE,
 215         .admin_user             = FALSE,
 216         .allow_auth_unadvertised= FALSE,
 217         .allow_unqualified_recipient = TRUE,    /* For local messages */
 218         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 219         .authentication_local   = FALSE,
 220
 221         .background_daemon      = TRUE,
 222
 223         .chunking_offered       = FALSE,
 224         .config_changed         = FALSE,
 225         .continue_more          = FALSE,
 226
 227         .daemon_listen          = FALSE,
 228         .debug_daemon           = FALSE,
 229         .deliver_firsttime      = FALSE,
 230         .deliver_force          = FALSE,
 231         .deliver_freeze         = FALSE,
 232         .deliver_force_thaw     = FALSE,
 233         .deliver_manual_thaw    = FALSE,
 234         .deliver_selectstring_regex = FALSE,
 235         .deliver_selectstring_sender_regex = FALSE,
 236         .disable_callout_flush  = FALSE,
 237         .disable_delay_flush    = FALSE,
 238         .disable_logging        = FALSE,
 239 #ifndef DISABLE_DKIM
 240         .dkim_disable_verify      = FALSE,
 241         .dkim_init_done           = FALSE,
 242 #endif
 243 #ifdef SUPPORT_DMARC
 244         .dmarc_has_been_checked  = FALSE,
 245         .dmarc_disable_verify    = FALSE,
 246         .dmarc_enable_forensic   = FALSE,
 247 #endif
 248         .dont_deliver           = FALSE,
 249         .dot_ends               = TRUE,
 250
 251         .enable_dollar_recipients = FALSE,
 252         .expand_string_forcedfail = FALSE,
 253
 254         .filter_running         = FALSE,
 255
 256         .header_rewritten       = FALSE,
 257         .helo_verified          = FALSE,
 258         .helo_verify_failed     = FALSE,
 259         .host_checking_callout  = FALSE,
 260         .host_find_failed_syntax= FALSE,
 261
 262         .inetd_wait_mode        = FALSE,
 263         .is_inetd               = FALSE,
 264
 265         .local_error_message    = FALSE,
 266         .log_testing_mode       = FALSE,
 267
 268 #ifdef WITH_CONTENT_SCAN
 269         .no_mbox_unspool        = FALSE,
 270 #endif
 271         .no_multiline_responses = FALSE,
 272
 273         .parse_allow_group      = FALSE,
 274         .parse_found_group      = FALSE,
 275         .pipelining_enable      = TRUE,
 276 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 277         .proxy_session_failed   = FALSE,
 278 #endif
 279
 280         .queue_2stage           = FALSE,
 281         .queue_only_policy      = FALSE,
 282         .queue_run_first_delivery = FALSE,
 283         .queue_run_force        = FALSE,
 284         .queue_run_local        = FALSE,
 285         .queue_running          = FALSE,
 286         .queue_smtp             = FALSE,
 287
 288         .really_exim            = TRUE,
 289         .receive_call_bombout   = FALSE,
 290         .recipients_discarded   = FALSE,
 291         .running_in_test_harness = FALSE,
 292
 293         .search_find_defer      = FALSE,
 294         .sender_address_forced  = FALSE,
 295         .sender_host_notsocket  = FALSE,
 296         .sender_host_unknown    = FALSE,
 297         .sender_local           = FALSE,
 298         .sender_name_forced     = FALSE,
 299         .sender_set_untrusted   = FALSE,
 300         .smtp_authenticated     = FALSE,
 301 #ifndef DISABLE_PIPE_CONNECT
 302         .smtp_in_early_pipe_advertised = FALSE,
 303         .smtp_in_early_pipe_no_auth = FALSE,
 304         .smtp_in_early_pipe_used = FALSE,
 305 #endif
 306         .smtp_in_pipelining_advertised = FALSE,
 307         .smtp_in_pipelining_used = FALSE,
 308         .spool_file_wireformat  = FALSE,
 309         .submission_mode        = FALSE,
 310         .suppress_local_fixups  = FALSE,
 311         .suppress_local_fixups_default = FALSE,
 312         .synchronous_delivery   = FALSE,
 313         .system_filtering       = FALSE,
 314
 315         .taint_check_slow       = FALSE,
 316         .testsuite_delays       = TRUE,
 317         .tcp_fastopen_ok        = FALSE,
 318         .tcp_in_fastopen        = FALSE,
 319         .tcp_in_fastopen_data   = FALSE,
 320         .tcp_in_fastopen_logged = FALSE,
 321         .tcp_out_fastopen_logged= FALSE,
 322         .timestamps_utc         = FALSE,
 323         .transport_filter_timed_out = FALSE,
 324         .trusted_caller         = FALSE,
 325         .trusted_config         = TRUE,
 326 };
 327
 328 /******************************************************************************/
 329 /* These are the flags which are either variables or mainsection options,
 330 so an address is needed for access, or are exported to local_scan. */
 331
 332 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 333 BOOL    allow_domain_literals  = FALSE;
 334 BOOL    allow_mx_to_ip         = FALSE;
 335 BOOL    allow_utf8_domains     = FALSE;
 336 BOOL    authentication_failed  = FALSE;
 337
 338 BOOL    bounce_return_body     = TRUE;
 339 BOOL    bounce_return_message  = TRUE;
 340 BOOL    check_rfc2047_length   = TRUE;
 341 BOOL    commandline_checks_require_admin = FALSE;
 342
 343 #ifdef EXPERIMENTAL_DCC
 344 BOOL    dcc_direct_add_header  = FALSE;
 345 #endif
 346 BOOL    debug_store            = FALSE;
 347 BOOL    delivery_date_remove   = TRUE;
 348 BOOL    deliver_drop_privilege = FALSE;
 349 #ifdef ENABLE_DISABLE_FSYNC
 350 BOOL    disable_fsync          = FALSE;
 351 #endif
 352 BOOL    disable_ipv6           = FALSE;
 353 BOOL    dns_csa_use_reverse    = TRUE;
 354 BOOL    drop_cr                = FALSE;         /* No longer used */
 355
 356 BOOL    envelope_to_remove     = TRUE;
 357 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 358 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 359 BOOL    extract_addresses_remove_arguments = TRUE;
 360
 361 BOOL    host_checking          = FALSE;
 362 BOOL    host_lookup_deferred   = FALSE;
 363 BOOL    host_lookup_failed     = FALSE;
 364 BOOL    ignore_fromline_local  = FALSE;
 365
 366 BOOL    local_from_check       = TRUE;
 367 BOOL    local_sender_retain    = FALSE;
 368 BOOL    log_timezone           = FALSE;
 369 BOOL    message_body_newlines  = FALSE;
 370 BOOL    message_logs           = TRUE;
 371 #ifdef SUPPORT_I18N
 372 BOOL    message_smtputf8       = FALSE;
 373 #endif
 374 BOOL    mua_wrapper            = FALSE;
 375
 376 BOOL    preserve_message_logs  = FALSE;
 377 BOOL    print_topbitchars      = FALSE;
 378 BOOL    prod_requires_admin    = TRUE;
 379 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 380 BOOL    proxy_session          = FALSE;
 381 #endif
 382
 383 #ifdef EXPERIMENTAL_QUEUE_RAMP
 384 BOOL    queue_fast_ramp         = FALSE;
 385 #endif
 386 BOOL    queue_list_requires_admin = TRUE;
 387 BOOL    queue_only             = FALSE;
 388 BOOL    queue_only_load_latch  = TRUE;
 389 BOOL    queue_only_override    = TRUE;
 390 BOOL    queue_run_in_order     = FALSE;
 391 BOOL    recipients_max_reject  = FALSE;
 392 BOOL    return_path_remove     = TRUE;
 393
 394 BOOL    smtp_batched_input     = FALSE;
 395 BOOL    sender_helo_dnssec     = FALSE;
 396 BOOL    sender_host_dnssec     = FALSE;
 397 BOOL    smtp_accept_keepalive  = TRUE;
 398 BOOL    smtp_check_spool_space = TRUE;
 399 BOOL    smtp_enforce_sync      = TRUE;
 400 BOOL    smtp_etrn_serialize    = TRUE;
 401 BOOL    smtp_input             = FALSE;
 402 BOOL    smtp_return_error_details = FALSE;
 403 #ifdef SUPPORT_SPF
 404 BOOL    spf_result_guessed     = FALSE;
 405 #endif
 406 BOOL    split_spool_directory  = FALSE;
 407 BOOL    spool_wireformat       = FALSE;
 408 #ifdef EXPERIMENTAL_SRS
 409 BOOL    srs_usehash            = TRUE;
 410 BOOL    srs_usetimestamp       = TRUE;
 411 #endif
 412 BOOL    strict_acl_vars        = FALSE;
 413 BOOL    strip_excess_angle_brackets = FALSE;
 414 BOOL    strip_trailing_dot     = FALSE;
 415 BOOL    syslog_duplication     = TRUE;
 416 BOOL    syslog_pid             = TRUE;
 417 BOOL    syslog_timestamp       = TRUE;
 418 BOOL    system_filter_gid_set  = FALSE;
 419 BOOL    system_filter_uid_set  = FALSE;
 420
 421 BOOL    tcp_nodelay            = TRUE;
 422 BOOL    write_rejectlog        = TRUE;
 423
 424 /******************************************************************************/
 425
 426 header_line *acl_added_headers = NULL;
 427 tree_node *acl_anchor          = NULL;
 428 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 429                                   NULL, NULL, NULL, NULL};
 430 int     acl_narg               = 0;
 431
 432 int     acl_level              = 0;
 433
 434 uschar *acl_not_smtp           = NULL;
 435 #ifdef WITH_CONTENT_SCAN
 436 uschar *acl_not_smtp_mime      = NULL;
 437 #endif
 438 uschar *acl_not_smtp_start     = NULL;
 439 uschar *acl_removed_headers    = NULL;
 440 uschar *acl_smtp_auth          = NULL;
 441 uschar *acl_smtp_connect       = NULL;
 442 uschar *acl_smtp_data          = NULL;
 443 #ifndef DISABLE_PRDR
 444 uschar *acl_smtp_data_prdr     = US"accept";
 445 #endif
 446 #ifndef DISABLE_DKIM
 447 uschar *acl_smtp_dkim          = NULL;
 448 #endif
 449 uschar *acl_smtp_etrn          = NULL;
 450 uschar *acl_smtp_expn          = NULL;
 451 uschar *acl_smtp_helo          = NULL;
 452 uschar *acl_smtp_mail          = NULL;
 453 uschar *acl_smtp_mailauth      = NULL;
 454 #ifdef WITH_CONTENT_SCAN
 455 uschar *acl_smtp_mime          = NULL;
 456 #endif
 457 uschar *acl_smtp_notquit       = NULL;
 458 uschar *acl_smtp_predata       = NULL;
 459 uschar *acl_smtp_quit          = NULL;
 460 uschar *acl_smtp_rcpt          = NULL;
 461 uschar *acl_smtp_starttls      = NULL;
 462 uschar *acl_smtp_vrfy          = NULL;
 463
 464 tree_node *acl_var_c           = NULL;
 465 tree_node *acl_var_m           = NULL;
 466 uschar *acl_verify_message     = NULL;
 467 string_item *acl_warn_logged   = NULL;
 468
 469 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 470 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 471
 472 uschar *acl_wherenames[]       = { US"RCPT",
 473                                    US"MAIL",
 474                                    US"PREDATA",
 475                                    US"MIME",
 476                                    US"DKIM",
 477                                    US"DATA",
 478 #ifndef DISABLE_PRDR
 479                                    US"PRDR",
 480 #endif
 481                                    US"non-SMTP",
 482                                    US"AUTH",
 483                                    US"connection",
 484                                    US"ETRN",
 485                                    US"EXPN",
 486                                    US"EHLO or HELO",
 487                                    US"MAILAUTH",
 488                                    US"non-SMTP-start",
 489                                    US"NOTQUIT",
 490                                    US"QUIT",
 491                                    US"STARTTLS",
 492                                    US"VRFY",
 493                                    US"delivery",
 494                                    US"unknown"
 495                                  };
 496
 497 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 498                                    US"550",     /* MAIL */
 499                                    US"550",     /* PREDATA */
 500                                    US"550",     /* MIME */
 501                                    US"550",     /* DKIM */
 502                                    US"550",     /* DATA */
 503 #ifndef DISABLE_PRDR
 504                                    US"550",    /* RCPT PRDR */
 505 #endif
 506                                    US"0",       /* not SMTP; not relevant */
 507                                    US"503",     /* AUTH */
 508                                    US"550",     /* connect */
 509                                    US"458",     /* ETRN */
 510                                    US"550",     /* EXPN */
 511                                    US"550",     /* HELO/EHLO */
 512                                    US"0",       /* MAILAUTH; not relevant */
 513                                    US"0",       /* not SMTP; not relevant */
 514                                    US"0",       /* NOTQUIT; not relevant */
 515                                    US"0",       /* QUIT; not relevant */
 516                                    US"550",     /* STARTTLS */
 517                                    US"252",     /* VRFY */
 518                                    US"0",       /* delivery; not relevant */
 519                                    US"0"        /* unknown; not relevant */
 520                                  };
 521
 522 uschar *add_environment        = NULL;
 523 address_item  *addr_duplicate  = NULL;
 524
 525 address_item address_defaults = {
 526   .next =               NULL,
 527   .parent =             NULL,
 528   .first =              NULL,
 529   .dupof =              NULL,
 530   .start_router =       NULL,
 531   .router =             NULL,
 532   .transport =          NULL,
 533   .host_list =          NULL,
 534   .host_used =          NULL,
 535   .fallback_hosts =     NULL,
 536   .reply =              NULL,
 537   .retries =            NULL,
 538   .address =            NULL,
 539   .unique =             NULL,
 540   .cc_local_part =      NULL,
 541   .lc_local_part =      NULL,
 542   .local_part =         NULL,
 543   .prefix =             NULL,
 544   .prefix_v =           NULL,
 545   .suffix =             NULL,
 546   .suffix_v =           NULL,
 547   .domain =             NULL,
 548   .address_retry_key =  NULL,
 549   .domain_retry_key =   NULL,
 550   .current_dir =        NULL,
 551   .home_dir =           NULL,
 552   .message =            NULL,
 553   .user_message =       NULL,
 554   .onetime_parent =     NULL,
 555   .pipe_expandn =       NULL,
 556   .return_filename =    NULL,
 557   .self_hostname =      NULL,
 558   .shadow_message =     NULL,
 559 #ifndef DISABLE_TLS
 560   .cipher =             NULL,
 561   .ourcert =            NULL,
 562   .peercert =           NULL,
 563   .peerdn =             NULL,
 564   .ocsp =               OCSP_NOT_REQ,
 565 #endif
 566 #ifdef EXPERIMENTAL_DSN_INFO
 567   .smtp_greeting =      NULL,
 568   .helo_response =      NULL,
 569 #endif
 570   .authenticator =      NULL,
 571   .auth_id =            NULL,
 572   .auth_sndr =          NULL,
 573   .dsn_orcpt =          NULL,
 574   .dsn_flags =          0,
 575   .dsn_aware =          0,
 576   .uid =                (uid_t)(-1),
 577   .gid =                (gid_t)(-1),
 578   .flags =              { 0 },
 579   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 580   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 581   .mode =               -1,
 582   .more_errno =         0,
 583   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 584   .basic_errno =        ERRNO_UNKNOWNERROR,
 585   .child_count =        0,
 586   .return_file =        -1,
 587   .special_action =     SPECIAL_NONE,
 588   .transport_return =   DEFER,
 589   .prop = {                                     /* fields that are propagated to children */
 590     .address_data =     NULL,
 591     .domain_data =      NULL,
 592     .localpart_data =   NULL,
 593     .errors_address =   NULL,
 594     .extra_headers =    NULL,
 595     .remove_headers =   NULL,
 596     .variables =        NULL,
 597 #ifdef EXPERIMENTAL_SRS
 598     .srs_sender =       NULL,
 599 #endif
 600     .ignore_error =     FALSE,
 601 #ifdef SUPPORT_I18N
 602     .utf8_msg =         FALSE,
 603     .utf8_downcvt =     FALSE,
 604     .utf8_downcvt_maybe = FALSE
 605 #endif
 606   }
 607 };
 608
 609 uschar *address_file           = NULL;
 610 uschar *address_pipe           = NULL;
 611 tree_node *addresslist_anchor  = NULL;
 612 int     addresslist_count      = 0;
 613 gid_t  *admin_groups           = NULL;
 614
 615 #ifdef EXPERIMENTAL_ARC
 616 struct arc_set *arc_received    = NULL;
 617 int     arc_received_instance   = 0;
 618 int     arc_oldest_pass         = 0;
 619 const uschar *arc_state         = NULL;
 620 const uschar *arc_state_reason  = NULL;
 621 #endif
 622
 623 uschar *authenticated_fail_id  = NULL;
 624 uschar *authenticated_id       = NULL;
 625 uschar *authenticated_sender   = NULL;
 626 auth_instance  *auths          = NULL;
 627 uschar *auth_advertise_hosts   = US"*";
 628 auth_instance auth_defaults    = {
 629     .next =             NULL,
 630     .name =             NULL,
 631     .info =             NULL,
 632     .options_block =    NULL,
 633     .driver_name =      NULL,
 634     .advertise_condition = NULL,
 635     .client_condition = NULL,
 636     .public_name =      NULL,
 637     .set_id =           NULL,
 638     .set_client_id =    NULL,
 639     .mail_auth_condition = NULL,
 640     .server_debug_string = NULL,
 641     .server_condition = NULL,
 642     .client =           FALSE,
 643     .server =           FALSE,
 644     .advertised =       FALSE
 645 };
 646
 647 uschar *auth_defer_msg         = US"reason not recorded";
 648 uschar *auth_defer_user_msg    = US"";
 649 uschar *auth_vars[AUTH_VARS];
 650 int     auto_thaw              = 0;
 651 #ifdef WITH_CONTENT_SCAN
 652 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 653 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 654 #endif
 655
 656 #if BASE_62 == 62
 657 uschar *base62_chars=
 658     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 659 #else
 660 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 661 #endif
 662
 663 uschar *bi_command             = NULL;
 664 uschar *big_buffer             = NULL;
 665 int     big_buffer_size        = BIG_BUFFER_SIZE;
 666 #ifdef EXPERIMENTAL_BRIGHTMAIL
 667 uschar *bmi_alt_location       = NULL;
 668 uschar *bmi_base64_tracker_verdict = NULL;
 669 uschar *bmi_base64_verdict     = NULL;
 670 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 671 int     bmi_deliver            = 1;
 672 int     bmi_run                = 0;
 673 uschar *bmi_verdicts           = NULL;
 674 #endif
 675 int     bsmtp_transaction_linecount = 0;
 676 int     body_8bitmime          = 0;
 677 int     body_linecount         = 0;
 678 int     body_zerocount         = 0;
 679 uschar *bounce_message_file    = NULL;
 680 uschar *bounce_message_text    = NULL;
 681 uschar *bounce_recipient       = NULL;
 682 int     bounce_return_linesize_limit = 998;
 683 int     bounce_return_size_limit = 100*1024;
 684 uschar *bounce_sender_authentication = NULL;
 685
 686 uschar *callout_address        = NULL;
 687 int     callout_cache_domain_positive_expire = 7*24*60*60;
 688 int     callout_cache_domain_negative_expire = 3*60*60;
 689 int     callout_cache_positive_expire = 24*60*60;
 690 int     callout_cache_negative_expire = 2*60*60;
 691 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 692 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 693 int     check_log_inodes       = 100;
 694 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 695 int     check_spool_inodes     = 100;
 696 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 697
 698 uschar *chunking_advertise_hosts = US"*";
 699 unsigned chunking_datasize     = 0;
 700 unsigned chunking_data_left    = 0;
 701 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 702 const pcre *regex_CHUNKING     = NULL;
 703
 704 uschar *client_authenticator   = NULL;
 705 uschar *client_authenticated_id = NULL;
 706 uschar *client_authenticated_sender = NULL;
 707 int     clmacro_count          = 0;
 708 uschar *clmacros[MAX_CLMACROS];
 709 FILE   *config_file            = NULL;
 710 const uschar *config_filename  = NULL;
 711 int     config_lineno          = 0;
 712 #ifdef CONFIGURE_GROUP
 713 gid_t   config_gid             = CONFIGURE_GROUP;
 714 #else
 715 gid_t   config_gid             = 0;
 716 #endif
 717 uschar *config_main_filelist   = US CONFIGURE_FILE
 718                          "\0<-----------Space to patch configure_filename->";
 719 uschar *config_main_filename   = NULL;
 720 uschar *config_main_directory  = NULL;
 721
 722 #ifdef CONFIGURE_OWNER
 723 uid_t   config_uid             = CONFIGURE_OWNER;
 724 #else
 725 uid_t   config_uid             = 0;
 726 #endif
 727
 728 int     connection_max_messages= -1;
 729 uschar *continue_proxy_cipher  = NULL;
 730 uschar *continue_hostname      = NULL;
 731 uschar *continue_host_address  = NULL;
 732 int     continue_sequence      = 1;
 733 uschar *continue_transport     = NULL;
 734
 735 uschar *csa_status             = NULL;
 736 cut_t   cutthrough = {
 737   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 738   .delivery =           FALSE,                          /* when to attempt */
 739   .defer_pass =         FALSE,                          /* on defer: spool locally */
 740   .is_tls =             FALSE,                          /* not a TLS conn yet */
 741   .cctx =               {.sock = -1},                   /* open connection */
 742   .nrcpt =              0,                              /* number of addresses */
 743 };
 744
 745 int     daemon_notifier_fd     = -1;
 746 uschar *daemon_smtp_port       = US"smtp";
 747 int     daemon_startup_retries = 9;
 748 int     daemon_startup_sleep   = 30;
 749
 750 #ifdef EXPERIMENTAL_DCC
 751 uschar *dcc_header             = NULL;
 752 uschar *dcc_result             = NULL;
 753 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 754 uschar *dccifd_options         = US"header";
 755 #endif
 756
 757 int     debug_fd               = -1;
 758 FILE   *debug_file             = NULL;
 759 int     debug_notall[]         = {
 760   Di_memory,
 761   Di_noutf8,
 762   -1
 763 };
 764 bit_table debug_options[]      = { /* must be in alphabetical order and use
 765                                  only the enum values from macro.h */
 766   BIT_TABLE(D, acl),
 767   BIT_TABLE(D, all),
 768   BIT_TABLE(D, auth),
 769   BIT_TABLE(D, deliver),
 770   BIT_TABLE(D, dns),
 771   BIT_TABLE(D, dnsbl),
 772   BIT_TABLE(D, exec),
 773   BIT_TABLE(D, expand),
 774   BIT_TABLE(D, filter),
 775   BIT_TABLE(D, hints_lookup),
 776   BIT_TABLE(D, host_lookup),
 777   BIT_TABLE(D, ident),
 778   BIT_TABLE(D, interface),
 779   BIT_TABLE(D, lists),
 780   BIT_TABLE(D, load),
 781   BIT_TABLE(D, local_scan),
 782   BIT_TABLE(D, lookup),
 783   BIT_TABLE(D, memory),
 784   BIT_TABLE(D, noutf8),
 785   BIT_TABLE(D, pid),
 786   BIT_TABLE(D, process_info),
 787   BIT_TABLE(D, queue_run),
 788   BIT_TABLE(D, receive),
 789   BIT_TABLE(D, resolver),
 790   BIT_TABLE(D, retry),
 791   BIT_TABLE(D, rewrite),
 792   BIT_TABLE(D, route),
 793   BIT_TABLE(D, timestamp),
 794   BIT_TABLE(D, tls),
 795   BIT_TABLE(D, transport),
 796   BIT_TABLE(D, uid),
 797   BIT_TABLE(D, verify),
 798 };
 799 int     debug_options_count    = nelem(debug_options);
 800
 801 unsigned int debug_selector    = 0;
 802 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 803 uschar *delay_warning_condition=
 804   US"${if or {"
 805             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 806             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 807             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 808             "} {no}{yes}}";
 809 uschar *deliver_address_data   = NULL;
 810 int     deliver_datafile       = -1;
 811 const uschar *deliver_domain   = NULL;
 812 uschar *deliver_domain_data    = NULL;
 813 const uschar *deliver_domain_orig = NULL;
 814 const uschar *deliver_domain_parent = NULL;
 815 time_t  deliver_frozen_at      = 0;
 816 uschar *deliver_home           = NULL;
 817 const uschar *deliver_host     = NULL;
 818 const uschar *deliver_host_address = NULL;
 819 int     deliver_host_port      = 0;
 820 uschar *deliver_in_buffer      = NULL;
 821 ino_t   deliver_inode          = 0;
 822 uschar *deliver_localpart      = NULL;
 823 uschar *deliver_localpart_data = NULL;
 824 uschar *deliver_localpart_orig = NULL;
 825 uschar *deliver_localpart_parent = NULL;
 826 uschar *deliver_localpart_prefix = NULL;
 827 uschar *deliver_localpart_prefix_v = NULL;
 828 uschar *deliver_localpart_suffix = NULL;
 829 uschar *deliver_localpart_suffix_v = NULL;
 830 uschar *deliver_localpart_verified = NULL;
 831 uschar *deliver_out_buffer     = NULL;
 832 int     deliver_queue_load_max = -1;
 833 address_item  *deliver_recipients = NULL;
 834 uschar *deliver_selectstring   = NULL;
 835 uschar *deliver_selectstring_sender = NULL;
 836
 837 #ifndef DISABLE_DKIM
 838 unsigned dkim_collect_input      = 0;
 839 uschar *dkim_cur_signer          = NULL;
 840 int     dkim_key_length          = 0;
 841 void   *dkim_signatures          = NULL;
 842 uschar *dkim_signers             = NULL;
 843 uschar *dkim_signing_domain      = NULL;
 844 uschar *dkim_signing_selector    = NULL;
 845 uschar *dkim_verify_hashes       = US"sha256:sha512";
 846 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 847 BOOL    dkim_verify_minimal      = FALSE;
 848 uschar *dkim_verify_overall      = NULL;
 849 uschar *dkim_verify_signers      = US"$dkim_signers";
 850 uschar *dkim_verify_status       = NULL;
 851 uschar *dkim_verify_reason       = NULL;
 852 #endif
 853 #ifdef SUPPORT_DMARC
 854 uschar *dmarc_domain_policy     = NULL;
 855 uschar *dmarc_forensic_sender   = NULL;
 856 uschar *dmarc_history_file      = NULL;
 857 uschar *dmarc_status            = NULL;
 858 uschar *dmarc_status_text       = NULL;
 859 uschar *dmarc_tld_file          = NULL;
 860 uschar *dmarc_used_domain       = NULL;
 861 #endif
 862
 863 uschar *dns_again_means_nonexist = NULL;
 864 int     dns_csa_search_limit   = 5;
 865 int     dns_cname_loops        = 1;
 866 #ifdef SUPPORT_DANE
 867 int     dns_dane_ok            = -1;
 868 #endif
 869 uschar *dns_ipv4_lookup        = NULL;
 870 int     dns_retrans            = 0;
 871 int     dns_retry              = 0;
 872 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 873 uschar *dns_trust_aa           = NULL;
 874 int     dns_use_edns0          = -1; /* <0 = not coerced */
 875 uschar *dnslist_domain         = NULL;
 876 uschar *dnslist_matched        = NULL;
 877 uschar *dnslist_text           = NULL;
 878 uschar *dnslist_value          = NULL;
 879 tree_node *domainlist_anchor   = NULL;
 880 int     domainlist_count       = 0;
 881 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 882
 883 int     errno_quota            = ERRNO_QUOTA;
 884 uschar *errors_copy            = NULL;
 885 int     error_handling         = ERRORS_SENDER;
 886 uschar *errors_reply_to        = NULL;
 887 int     errors_sender_rc       = EXIT_FAILURE;
 888 #ifndef DISABLE_EVENT
 889 uschar *event_action             = NULL;        /* expansion for delivery events */
 890 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 891 int     event_defer_errno        = 0;
 892 const uschar *event_name         = NULL;        /* event name variable */
 893 #endif
 894
 895
 896 gid_t   exim_gid               = EXIM_GID;
 897 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 898                         "\0<---------------Space to patch exim_path->";
 899 uid_t   exim_uid               = EXIM_UID;
 900 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 901 int     expand_forbid          = 0;
 902 int     expand_nlength[EXPAND_MAXN+1];
 903 int     expand_nmax            = -1;
 904 uschar *expand_nstring[EXPAND_MAXN+1];
 905 uschar *expand_string_message;
 906 uschar *extra_local_interfaces = NULL;
 907
 908 int     fake_response          = OK;
 909 uschar *fake_response_text     = US"Your message has been rejected but is "
 910                                    "being kept for evaluation.\nIf it was a "
 911                                    "legitimate message, it may still be "
 912                                    "delivered to the target recipient(s).";
 913 int     filter_n[FILTER_VARIABLE_COUNT];
 914 int     filter_sn[FILTER_VARIABLE_COUNT];
 915 int     filter_test            = FTEST_NONE;
 916 uschar *filter_test_sfile      = NULL;
 917 uschar *filter_test_ufile      = NULL;
 918 uschar *filter_thisaddress     = NULL;
 919 int     finduser_retries       = 0;
 920 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 921 uschar *freeze_tell            = NULL;
 922 uschar *freeze_tell_config     = NULL;
 923 uschar *fudged_queue_times     = US"";
 924
 925 uschar *gecos_name             = NULL;
 926 uschar *gecos_pattern          = NULL;
 927 rewrite_rule  *global_rewrite_rules = NULL;
 928
 929 volatile sig_atomic_t had_command_timeout = 0;
 930 volatile sig_atomic_t had_command_sigterm = 0;
 931 volatile sig_atomic_t had_data_timeout    = 0;
 932 volatile sig_atomic_t had_data_sigint     = 0;
 933 uschar *headers_charset        = US HEADERS_CHARSET;
 934 int     header_insert_maxlen   = 64 * 1024;
 935 header_line  *header_last      = NULL;
 936 header_line  *header_list      = NULL;
 937 int     header_maxsize         = HEADER_MAXSIZE;
 938 int     header_line_maxsize    = 0;
 939
 940 header_name header_names[] = {
 941   /* name               len     allow_resent    htype */
 942   { US"bcc",            3,      TRUE,           htype_bcc },
 943   { US"cc",             2,      TRUE,           htype_cc },
 944   { US"date",           4,      TRUE,           htype_date },
 945   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 946   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 947   { US"from",           4,      TRUE,           htype_from },
 948   { US"message-id",    10,      TRUE,           htype_id },
 949   { US"received",       8,      FALSE,          htype_received },
 950   { US"reply-to",       8,      FALSE,          htype_reply_to },
 951   { US"return-path",   11,      FALSE,          htype_return_path },
 952   { US"sender",         6,      TRUE,           htype_sender },
 953   { US"subject",        7,      FALSE,          htype_subject },
 954   { US"to",             2,      TRUE,           htype_to }
 955 };
 956
 957 int header_names_size          = nelem(header_names);
 958
 959 uschar *helo_accept_junk_hosts = NULL;
 960 uschar *helo_allow_chars       = US"";
 961 uschar *helo_lookup_domains    = US"@ : @[]";
 962 uschar *helo_try_verify_hosts  = NULL;
 963 uschar *helo_verify_hosts      = NULL;
 964 const uschar *hex_digits       = CUS"0123456789abcdef";
 965 uschar *hold_domains           = NULL;
 966 uschar *host_data              = NULL;
 967 uschar *host_lookup            = NULL;
 968 uschar *host_lookup_order      = US"bydns:byaddr";
 969 uschar *host_lookup_msg        = US"";
 970 int     host_number            = 0;
 971 uschar *host_number_string     = NULL;
 972 uschar *host_reject_connection = NULL;
 973 tree_node *hostlist_anchor     = NULL;
 974 int     hostlist_count         = 0;
 975 uschar *hosts_treat_as_local   = NULL;
 976 uschar *hosts_connection_nolog = NULL;
 977
 978 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 979 uschar *ignore_fromline_hosts  = NULL;
 980 int     inetd_wait_timeout     = -1;
 981 uschar *initial_cwd            = NULL;
 982 uschar *interface_address      = NULL;
 983 int     interface_port         = -1;
 984 uschar *iterate_item           = NULL;
 985
 986 int     journal_fd             = -1;
 987
 988 uschar *keep_environment       = NULL;
 989
 990 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 991
 992 uschar *eldap_dn               = NULL;
 993 int     load_average           = -2;
 994 uschar *local_from_prefix      = NULL;
 995 uschar *local_from_suffix      = NULL;
 996
 997 #if HAVE_IPV6
 998 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 999 #else
1000 uschar *local_interfaces       = US"0.0.0.0";
1001 #endif
1002
1003 #ifdef HAVE_LOCAL_SCAN
1004 uschar *local_scan_data        = NULL;
1005 int     local_scan_timeout     = 5*60;
1006 #endif
1007 gid_t   local_user_gid         = (gid_t)(-1);
1008 uid_t   local_user_uid         = (uid_t)(-1);
1009
1010 tree_node *localpartlist_anchor= NULL;
1011 int     localpartlist_count    = 0;
1012 uschar *log_buffer             = NULL;
1013
1014 int     log_default[]          = { /* for initializing log_selector */
1015   Li_acl_warn_skipped,
1016   Li_connection_reject,
1017   Li_delay_delivery,
1018   Li_dkim,
1019   Li_dnslist_defer,
1020   Li_etrn,
1021   Li_host_lookup_failed,
1022   Li_lost_incoming_connection,
1023   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1024   Li_msg_id,
1025   Li_queue_run,
1026   Li_rejected_header,
1027   Li_retry_defer,
1028   Li_sender_verify_fail,
1029   Li_size_reject,
1030   Li_skip_delivery,
1031   Li_smtp_confirmation,
1032   Li_tls_certificate_verified,
1033   Li_tls_cipher,
1034   -1
1035 };
1036
1037 uschar *log_file_path          = US LOG_FILE_PATH
1038                            "\0<--------------Space to patch log_file_path->";
1039
1040 int     log_notall[]           = {
1041   -1
1042 };
1043 bit_table log_options[]        = { /* must be in alphabetical order,
1044                                 with definitions from enum logbit. */
1045   BIT_TABLE(L, 8bitmime),
1046   BIT_TABLE(L, acl_warn_skipped),
1047   BIT_TABLE(L, address_rewrite),
1048   BIT_TABLE(L, all),
1049   BIT_TABLE(L, all_parents),
1050   BIT_TABLE(L, arguments),
1051   BIT_TABLE(L, connection_reject),
1052   BIT_TABLE(L, delay_delivery),
1053   BIT_TABLE(L, deliver_time),
1054   BIT_TABLE(L, delivery_size),
1055 #ifndef DISABLE_DKIM
1056   BIT_TABLE(L, dkim),
1057   BIT_TABLE(L, dkim_verbose),
1058 #endif
1059   BIT_TABLE(L, dnslist_defer),
1060   BIT_TABLE(L, dnssec),
1061   BIT_TABLE(L, etrn),
1062   BIT_TABLE(L, host_lookup_failed),
1063   BIT_TABLE(L, ident_timeout),
1064   BIT_TABLE(L, incoming_interface),
1065   BIT_TABLE(L, incoming_port),
1066   BIT_TABLE(L, lost_incoming_connection),
1067   BIT_TABLE(L, millisec),
1068   BIT_TABLE(L, msg_id),
1069   BIT_TABLE(L, msg_id_created),
1070   BIT_TABLE(L, outgoing_interface),
1071   BIT_TABLE(L, outgoing_port),
1072   BIT_TABLE(L, pid),
1073   BIT_TABLE(L, pipelining),
1074 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1075   BIT_TABLE(L, proxy),
1076 #endif
1077   BIT_TABLE(L, queue_run),
1078   BIT_TABLE(L, queue_time),
1079   BIT_TABLE(L, queue_time_overall),
1080   BIT_TABLE(L, receive_time),
1081   BIT_TABLE(L, received_recipients),
1082   BIT_TABLE(L, received_sender),
1083   BIT_TABLE(L, rejected_header),
1084   { US"rejected_headers", Li_rejected_header },
1085   BIT_TABLE(L, retry_defer),
1086   BIT_TABLE(L, return_path_on_delivery),
1087   BIT_TABLE(L, sender_on_delivery),
1088   BIT_TABLE(L, sender_verify_fail),
1089   BIT_TABLE(L, size_reject),
1090   BIT_TABLE(L, skip_delivery),
1091   BIT_TABLE(L, smtp_confirmation),
1092   BIT_TABLE(L, smtp_connection),
1093   BIT_TABLE(L, smtp_incomplete_transaction),
1094   BIT_TABLE(L, smtp_mailauth),
1095   BIT_TABLE(L, smtp_no_mail),
1096   BIT_TABLE(L, smtp_protocol_error),
1097   BIT_TABLE(L, smtp_syntax_error),
1098   BIT_TABLE(L, subject),
1099   BIT_TABLE(L, tls_certificate_verified),
1100   BIT_TABLE(L, tls_cipher),
1101   BIT_TABLE(L, tls_peerdn),
1102   BIT_TABLE(L, tls_resumption),
1103   BIT_TABLE(L, tls_sni),
1104   BIT_TABLE(L, unknown_in_list),
1105 };
1106 int     log_options_count      = nelem(log_options);
1107
1108 int     log_reject_target      = 0;
1109 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1110 uschar *log_selector_string    = NULL;
1111 FILE   *log_stderr             = NULL;
1112 uschar *login_sender_address   = NULL;
1113 uschar *lookup_dnssec_authenticated = NULL;
1114 int     lookup_open_max        = 25;
1115 uschar *lookup_value           = NULL;
1116
1117 macro_item *macros_user        = NULL;
1118 uschar *mailstore_basename     = NULL;
1119 #ifdef WITH_CONTENT_SCAN
1120 uschar *malware_name           = NULL;  /* Virus Name */
1121 #endif
1122 int     max_received_linelength= 0;
1123 int     max_username_length    = 0;
1124 int     message_age            = 0;
1125 uschar *message_body           = NULL;
1126 uschar *message_body_end       = NULL;
1127 int     message_body_size      = 0;
1128 int     message_body_visible   = 500;
1129 int     message_ended          = END_NOTSTARTED;
1130 uschar *message_headers        = NULL;
1131 uschar *message_id;
1132 uschar *message_id_domain      = NULL;
1133 uschar *message_id_text        = NULL;
1134 struct timeval message_id_tv   = { 0, 0 };
1135 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1136 uschar *message_id_external;
1137 int     message_linecount      = 0;
1138 int     message_size           = 0;
1139 uschar *message_size_limit     = US"50M";
1140 #ifdef SUPPORT_I18N
1141 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1142 #endif
1143 uschar  message_subdir[2]      = { 0, 0 };
1144 uschar *message_reference      = NULL;
1145
1146 /* MIME ACL expandables */
1147 #ifdef WITH_CONTENT_SCAN
1148 int     mime_anomaly_level     = 0;
1149 const uschar *mime_anomaly_text      = NULL;
1150 uschar *mime_boundary          = NULL;
1151 uschar *mime_charset           = NULL;
1152 uschar *mime_content_description = NULL;
1153 uschar *mime_content_disposition = NULL;
1154 uschar *mime_content_id        = NULL;
1155 unsigned int mime_content_size = 0;
1156 uschar *mime_content_transfer_encoding = NULL;
1157 uschar *mime_content_type      = NULL;
1158 uschar *mime_decoded_filename  = NULL;
1159 uschar *mime_filename          = NULL;
1160 int     mime_is_multipart      = 0;
1161 int     mime_is_coverletter    = 0;
1162 int     mime_is_rfc822         = 0;
1163 int     mime_part_count        = -1;
1164 #endif
1165
1166 uid_t  *never_users            = NULL;
1167
1168 const int on                   = 1;     /* for setsockopt */
1169 const int off                  = 0;
1170
1171 uid_t   original_euid;
1172 gid_t   originator_gid;
1173 uschar *originator_login       = NULL;
1174 uschar *originator_name        = NULL;
1175 uid_t   originator_uid;
1176 uschar *override_local_interfaces = NULL;
1177 uschar *override_pid_file_path = NULL;
1178
1179 uschar *percent_hack_domains   = NULL;
1180 uschar *pid_file_path          = US PID_FILE_PATH
1181                            "\0<--------------Space to patch pid_file_path->";
1182 #ifndef DISABLE_PIPE_CONNECT
1183 uschar *pipe_connect_advertise_hosts = US"*";
1184 #endif
1185 uschar *pipelining_advertise_hosts = US"*";
1186 uschar *primary_hostname       = NULL;
1187 uschar *process_info;
1188 int     process_info_len       = 0;
1189 uschar *process_log_path       = NULL;
1190
1191 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1192 uschar *hosts_proxy            = NULL;
1193 uschar *proxy_external_address = NULL;
1194 int     proxy_external_port    = 0;
1195 uschar *proxy_local_address    = NULL;
1196 int     proxy_local_port       = 0;
1197 #endif
1198
1199 uschar *prvscheck_address      = NULL;
1200 uschar *prvscheck_keynum       = NULL;
1201 uschar *prvscheck_result       = NULL;
1202
1203
1204 const uschar *qualify_domain_recipient = NULL;
1205 uschar *qualify_domain_sender  = NULL;
1206 uschar *queue_domains          = NULL;
1207 int     queue_interval         = -1;
1208 uschar *queue_name             = US"";
1209 uschar *queue_name_dest        = NULL;
1210 uschar *queue_only_file        = NULL;
1211 int     queue_only_load        = -1;
1212 uschar *queue_run_max          = US"5";
1213 pid_t   queue_run_pid          = (pid_t)0;
1214 int     queue_run_pipe         = -1;
1215 unsigned queue_size            = 0;
1216 time_t  queue_size_next        = 0;
1217 uschar *queue_smtp_domains     = NULL;
1218
1219 uint32_t random_seed           = 0;
1220 tree_node *ratelimiters_cmd    = NULL;
1221 tree_node *ratelimiters_conn   = NULL;
1222 tree_node *ratelimiters_mail   = NULL;
1223 uschar *raw_active_hostname    = NULL;
1224 uschar *raw_sender             = NULL;
1225 uschar **raw_recipients        = NULL;
1226 int     raw_recipients_count   = 0;
1227
1228 int     rcpt_count             = 0;
1229 int     rcpt_fail_count        = 0;
1230 int     rcpt_defer_count       = 0;
1231 gid_t   real_gid;
1232 uid_t   real_uid;
1233 int     receive_linecount      = 0;
1234 int     receive_messagecount   = 0;
1235 int     receive_timeout        = 0;
1236 int     received_count         = 0;
1237 uschar *received_for           = NULL;
1238
1239 /*  This is the default text for Received headers generated by Exim. The
1240 date  will be automatically added on the end. */
1241
1242 uschar *received_header_text   = US
1243      "Received: "
1244      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1245        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1246          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1247      "by $primary_hostname "
1248      "${if def:received_protocol {with $received_protocol }}"
1249 #ifndef DISABLE_TLS
1250      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1251      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1252 #endif
1253      "(Exim $version_number)\n\t"
1254      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1255      "id $message_exim_id"
1256      "${if def:received_for {\n\tfor $received_for}}"
1257      "\0<---------------Space to patch received_header_text->";
1258
1259 int     received_headers_max   = 30;
1260 uschar *received_protocol      = NULL;
1261 struct timeval received_time   = { 0, 0 };
1262 struct timeval received_time_taken = { 0, 0 };
1263 uschar *recipient_data         = NULL;
1264 uschar *recipient_unqualified_hosts = NULL;
1265 uschar *recipient_verify_failure = NULL;
1266 int     recipients_count       = 0;
1267 recipient_item  *recipients_list = NULL;
1268 int     recipients_list_max    = 0;
1269 int     recipients_max         = 0;
1270 const pcre *regex_AUTH         = NULL;
1271 const pcre *regex_check_dns_names = NULL;
1272 const pcre *regex_From         = NULL;
1273 const pcre *regex_IGNOREQUOTA  = NULL;
1274 const pcre *regex_PIPELINING   = NULL;
1275 const pcre *regex_SIZE         = NULL;
1276 #ifndef DISABLE_PIPE_CONNECT
1277 const pcre *regex_EARLY_PIPE   = NULL;
1278 #endif
1279 const pcre *regex_ismsgid      = NULL;
1280 const pcre *regex_smtp_code    = NULL;
1281 uschar *regex_vars[REGEX_VARS];
1282 #ifdef WHITELIST_D_MACROS
1283 const pcre *regex_whitelisted_macro = NULL;
1284 #endif
1285 #ifdef WITH_CONTENT_SCAN
1286 uschar *regex_match_string     = NULL;
1287 #endif
1288 int     remote_delivery_count  = 0;
1289 int     remote_max_parallel    = 2;
1290 uschar *remote_sort_domains    = NULL;
1291 int     retry_data_expire      = 7*24*60*60;
1292 int     retry_interval_max     = 24*60*60;
1293 int     retry_maximum_timeout  = 0;        /* set from retry config */
1294 retry_config  *retries         = NULL;
1295 uschar *return_path            = NULL;
1296 int     rewrite_existflags     = 0;
1297 uschar *rfc1413_hosts          = US"@[]";
1298 int     rfc1413_query_timeout  = 0;
1299 uid_t   root_gid               = ROOT_GID;
1300 uid_t   root_uid               = ROOT_UID;
1301
1302 router_instance  *routers  = NULL;
1303 router_instance  router_defaults = {
1304     .next =                     NULL,
1305     .name =                     NULL,
1306     .info =                     NULL,
1307     .options_block =            NULL,
1308     .driver_name =              NULL,
1309
1310     .address_data =             NULL,
1311 #ifdef EXPERIMENTAL_BRIGHTMAIL
1312     .bmi_rule =                 NULL,
1313 #endif
1314     .cannot_route_message =     NULL,
1315     .condition =                NULL,
1316     .current_directory =        NULL,
1317     .debug_string =             NULL,
1318     .domains =                  NULL,
1319     .errors_to =                NULL,
1320     .expand_gid =               NULL,
1321     .expand_uid =               NULL,
1322     .expand_more =              NULL,
1323     .expand_unseen =            NULL,
1324     .extra_headers =            NULL,
1325     .fallback_hosts =           NULL,
1326     .home_directory =           NULL,
1327     .ignore_target_hosts =      NULL,
1328     .local_parts =              NULL,
1329     .pass_router_name =         NULL,
1330     .prefix =                   NULL,
1331     .redirect_router_name =     NULL,
1332     .remove_headers =           NULL,
1333     .require_files =            NULL,
1334     .router_home_directory =    NULL,
1335     .self =                     US"freeze",
1336     .senders =                  NULL,
1337     .suffix =                   NULL,
1338     .translate_ip_address =     NULL,
1339     .transport_name =           NULL,
1340
1341     .address_test =             TRUE,
1342 #ifdef EXPERIMENTAL_BRIGHTMAIL
1343     .bmi_deliver_alternate =    FALSE,
1344     .bmi_deliver_default =      FALSE,
1345     .bmi_dont_deliver =         FALSE,
1346 #endif
1347     .expn =                     TRUE,
1348     .caseful_local_part =       FALSE,
1349     .check_local_user =         FALSE,
1350     .disable_logging =          FALSE,
1351     .fail_verify_recipient =    FALSE,
1352     .fail_verify_sender =       FALSE,
1353     .gid_set =                  FALSE,
1354     .initgroups =               FALSE,
1355     .log_as_local =             TRUE_UNSET,
1356     .more =                     TRUE,
1357     .pass_on_timeout =          FALSE,
1358     .prefix_optional =          FALSE,
1359     .repeat_use =               TRUE,
1360     .retry_use_local_part =     TRUE_UNSET,
1361     .same_domain_copy_routing = FALSE,
1362     .self_rewrite =             FALSE,
1363     .set =                      NULL,
1364     .suffix_optional =          FALSE,
1365     .verify_only =              FALSE,
1366     .verify_recipient =         TRUE,
1367     .verify_sender =            TRUE,
1368     .uid_set =                  FALSE,
1369     .unseen =                   FALSE,
1370     .dsn_lasthop =              FALSE,
1371
1372     .self_code =                self_freeze,
1373     .uid =                      (uid_t)(-1),
1374     .gid =                      (gid_t)(-1),
1375
1376     .fallback_hostlist =        NULL,
1377     .transport =                NULL,
1378     .pass_router =              NULL,
1379     .redirect_router =          NULL,
1380
1381     .dnssec =                   { .request= US"*", .require=NULL },
1382 };
1383
1384 uschar *router_name            = NULL;
1385 tree_node *router_var          = NULL;
1386
1387 ip_address_item *running_interfaces = NULL;
1388
1389 /* This is a weird one. The following string gets patched in the binary by the
1390 script that sets up a copy of Exim for running in the test harness. It seems
1391 that compilers are now clever, and share constant strings if they can.
1392 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1393 make use of the end of this string in order to save space. So the patching then
1394 wrecks this. We defeat this optimization by adding some additional characters
1395 onto the end of the string. */
1396
1397 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1398
1399 int     runrc                  = 0;
1400
1401 uschar *search_error_message   = NULL;
1402 uschar *self_hostname          = NULL;
1403 uschar *sender_address         = NULL;
1404 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1405 uschar *sender_address_data    = NULL;
1406 uschar *sender_address_unrewritten = NULL;
1407 uschar *sender_data            = NULL;
1408 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1409 uschar *sender_fullhost        = NULL;
1410 uschar *sender_helo_name       = NULL;
1411 uschar **sender_host_aliases   = &no_aliases;
1412 uschar *sender_host_address    = NULL;
1413 uschar *sender_host_authenticated = NULL;
1414 uschar *sender_host_auth_pubname  = NULL;
1415 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1416 uschar *sender_host_name       = NULL;
1417 int     sender_host_port       = 0;
1418 uschar *sender_ident           = NULL;
1419 uschar *sender_rate            = NULL;
1420 uschar *sender_rate_limit      = NULL;
1421 uschar *sender_rate_period     = NULL;
1422 uschar *sender_rcvhost         = NULL;
1423 uschar *sender_unqualified_hosts = NULL;
1424 uschar *sender_verify_failure = NULL;
1425 address_item *sender_verified_list  = NULL;
1426 address_item *sender_verified_failed = NULL;
1427 int     sender_verified_rc     = -1;
1428 uschar *sending_ip_address     = NULL;
1429 int     sending_port           = -1;
1430 SIGNAL_BOOL sigalrm_seen       = FALSE;
1431 const uschar *sigalarm_setter  = NULL;
1432 uschar **sighup_argv           = NULL;
1433 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1434 int     smtp_accept_count      = 0;
1435 int     smtp_accept_max        = 20;
1436 int     smtp_accept_max_nonmail= 10;
1437 uschar *smtp_accept_max_nonmail_hosts = US"*";
1438 int     smtp_accept_max_per_connection = 1000;
1439 uschar *smtp_accept_max_per_host = NULL;
1440 int     smtp_accept_queue      = 0;
1441 int     smtp_accept_queue_per_connection = 10;
1442 int     smtp_accept_reserve    = 0;
1443 uschar *smtp_active_hostname   = NULL;
1444 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1445                              "Exim $version_number $tod_full"
1446                              "\0<---------------Space to patch smtp_banner->";
1447 int     smtp_ch_index          = 0;
1448 uschar *smtp_cmd_argument      = NULL;
1449 uschar *smtp_cmd_buffer        = NULL;
1450 struct timeval smtp_connection_start  = {0,0};
1451 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1452 int     smtp_connect_backlog   = 20;
1453 double  smtp_delay_mail        = 0.0;
1454 double  smtp_delay_rcpt        = 0.0;
1455 FILE   *smtp_in                = NULL;
1456 int     smtp_load_reserve      = -1;
1457 int     smtp_mailcmd_count     = 0;
1458 FILE   *smtp_out               = NULL;
1459 uschar *smtp_etrn_command      = NULL;
1460 int     smtp_max_synprot_errors= 3;
1461 int     smtp_max_unknown_commands = 3;
1462 uschar *smtp_notquit_reason    = NULL;
1463 uschar *smtp_ratelimit_hosts   = NULL;
1464 uschar *smtp_ratelimit_mail    = NULL;
1465 uschar *smtp_ratelimit_rcpt    = NULL;
1466 uschar *smtp_read_error        = US"";
1467 int     smtp_receive_timeout   = 5*60;
1468 uschar *smtp_receive_timeout_s = NULL;
1469 uschar *smtp_reserve_hosts     = NULL;
1470 int     smtp_rlm_base          = 0;
1471 double  smtp_rlm_factor        = 0.0;
1472 int     smtp_rlm_limit         = 0;
1473 int     smtp_rlm_threshold     = INT_MAX;
1474 int     smtp_rlr_base          = 0;
1475 double  smtp_rlr_factor        = 0.0;
1476 int     smtp_rlr_limit         = 0;
1477 int     smtp_rlr_threshold     = INT_MAX;
1478 unsigned smtp_peer_options     = 0;
1479 unsigned smtp_peer_options_wrap= 0;
1480 #ifdef SUPPORT_I18N
1481 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1482 #endif
1483
1484 #ifdef WITH_CONTENT_SCAN
1485 uschar *spamd_address          = US"127.0.0.1 783";
1486 uschar *spam_bar               = NULL;
1487 uschar *spam_report            = NULL;
1488 uschar *spam_action            = NULL;
1489 uschar *spam_score             = NULL;
1490 uschar *spam_score_int         = NULL;
1491 #endif
1492 #ifdef SUPPORT_SPF
1493 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1494 uschar *spf_header_comment     = NULL;
1495 uschar *spf_received           = NULL;
1496 uschar *spf_result             = NULL;
1497 uschar *spf_smtp_comment       = NULL;
1498 #endif
1499
1500 FILE   *spool_data_file        = NULL;
1501 uschar *spool_directory        = US SPOOL_DIRECTORY
1502                            "\0<--------------Space to patch spool_directory->";
1503 #ifdef EXPERIMENTAL_SRS
1504 uschar *srs_config             = NULL;
1505 uschar *srs_db_address         = NULL;
1506 uschar *srs_db_key             = NULL;
1507 int     srs_hashlength         = 6;
1508 int     srs_hashmin            = -1;
1509 int     srs_maxage             = 31;
1510 uschar *srs_orig_recipient     = NULL;
1511 uschar *srs_orig_sender        = NULL;
1512 uschar *srs_recipient          = NULL;
1513 uschar *srs_secrets            = NULL;
1514 uschar *srs_status             = NULL;
1515 #endif
1516 #ifdef EXPERIMENTAL_SRS_NATIVE
1517 uschar *srs_recipient          = NULL;
1518 #endif
1519 int     string_datestamp_offset= -1;
1520 int     string_datestamp_length= 0;
1521 int     string_datestamp_type  = -1;
1522 uschar *submission_domain      = NULL;
1523 uschar *submission_name        = NULL;
1524 int     syslog_facility        = LOG_MAIL;
1525 uschar *syslog_processname     = US"exim";
1526 uschar *system_filter          = NULL;
1527
1528 uschar *system_filter_directory_transport = NULL;
1529 uschar *system_filter_file_transport = NULL;
1530 uschar *system_filter_pipe_transport = NULL;
1531 uschar *system_filter_reply_transport = NULL;
1532
1533 gid_t   system_filter_gid      = 0;
1534 uid_t   system_filter_uid      = (uid_t)-1;
1535
1536 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1537 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1538 #ifdef USE_TCP_WRAPPERS
1539 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1540 #endif
1541 int     test_harness_load_avg  = 0;
1542 int     thismessage_size_limit = 0;
1543 int     timeout_frozen_after   = 0;
1544 #ifdef MEASURE_TIMING
1545 struct timeval timestamp_startup;
1546 #endif
1547
1548 transport_instance  *transports = NULL;
1549
1550 transport_instance  transport_defaults = {
1551     .next =                     NULL,
1552     .name =                     NULL,
1553     .info =                     NULL,
1554     .options_block =            NULL,
1555     .driver_name =              NULL,
1556     .setup =                    NULL,
1557     .batch_max =                1,
1558     .batch_id =                 NULL,
1559     .home_dir =                 NULL,
1560     .current_dir =              NULL,
1561     .expand_multi_domain =      NULL,
1562     .multi_domain =             TRUE,
1563     .overrides_hosts =          FALSE,
1564     .max_addresses =            100,
1565     .connection_max_messages =  500,
1566     .deliver_as_creator =       FALSE,
1567     .disable_logging =          FALSE,
1568     .initgroups =               FALSE,
1569     .uid_set =                  FALSE,
1570     .gid_set =                  FALSE,
1571     .uid =                      (uid_t)(-1),
1572     .gid =                      (gid_t)(-1),
1573     .expand_uid =               NULL,
1574     .expand_gid =               NULL,
1575     .warn_message =             NULL,
1576     .shadow =                   NULL,
1577     .shadow_condition =         NULL,
1578     .filter_command =           NULL,
1579     .add_headers =              NULL,
1580     .remove_headers =           NULL,
1581     .return_path =              NULL,
1582     .debug_string =             NULL,
1583     .max_parallel =             NULL,
1584     .message_size_limit =       NULL,
1585     .headers_rewrite =          NULL,
1586     .rewrite_rules =            NULL,
1587     .rewrite_existflags =       0,
1588     .filter_timeout =           300,
1589     .body_only =                FALSE,
1590     .delivery_date_add =        FALSE,
1591     .envelope_to_add =          FALSE,
1592     .headers_only =             FALSE,
1593     .rcpt_include_affixes =     FALSE,
1594     .return_path_add =          FALSE,
1595     .return_output =            FALSE,
1596     .return_fail_output =       FALSE,
1597     .log_output =               FALSE,
1598     .log_fail_output =          FALSE,
1599     .log_defer_output =         FALSE,
1600     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1601                                                  1 nor 0 so can detect unset */
1602 #ifndef DISABLE_EVENT
1603    .event_action =              NULL
1604 #endif
1605 };
1606
1607 int     transport_count;
1608 uschar *transport_name          = NULL;
1609 int     transport_newlines;
1610 const uschar **transport_filter_argv  = NULL;
1611 int     transport_filter_timeout;
1612 int     transport_write_timeout= 0;
1613
1614 tree_node  *tree_dns_fails     = NULL;
1615 tree_node  *tree_duplicates    = NULL;
1616 tree_node  *tree_nonrecipients = NULL;
1617 tree_node  *tree_unusable      = NULL;
1618
1619 gid_t  *trusted_groups         = NULL;
1620 uid_t  *trusted_users          = NULL;
1621 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1622
1623 uschar *unknown_login          = NULL;
1624 uschar *unknown_username       = NULL;
1625 uschar *untrusted_set_sender   = NULL;
1626
1627 /*  A regex for matching a "From_" line in an incoming message, in the form
1628
1629     From ph10 Fri Jan  5 12:35 GMT 1996
1630
1631 which  the "mail" commands send to the MTA (undocumented, of course), or in
1632 the  form
1633
1634     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1635
1636 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1637 Because  of variations in time formats, just match up to the minutes. That
1638 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1639 so  just require one digit for hours and minutes. The weekday is also absent
1640 in  some forms. */
1641
1642 uschar *uucp_from_pattern      = US
1643    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1644    "(?:"                                          /* Non-extracting bracket */
1645    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1646    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1647    ")"                                            /* End alternation */
1648    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1649
1650 uschar *uucp_from_sender       = US"$1";
1651
1652 uschar *verify_mode            = NULL;
1653 uschar *version_copyright      =
1654  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1655    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1656 uschar *version_date           = US"?";
1657 uschar *version_cnumber        = US"????";
1658 uschar *version_string         = US"?";
1659
1660 uschar *warn_message_file      = NULL;
1661 int     warning_count          = 0;
1662 uschar *warnmsg_delay          = NULL;
1663 uschar *warnmsg_recipients     = NULL;
1664
1665
1666 /*  End of globals.c */