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   .suffix =             NULL,
 545   .domain =             NULL,
 546   .address_retry_key =  NULL,
 547   .domain_retry_key =   NULL,
 548   .current_dir =        NULL,
 549   .home_dir =           NULL,
 550   .message =            NULL,
 551   .user_message =       NULL,
 552   .onetime_parent =     NULL,
 553   .pipe_expandn =       NULL,
 554   .return_filename =    NULL,
 555   .self_hostname =      NULL,
 556   .shadow_message =     NULL,
 557 #ifndef DISABLE_TLS
 558   .cipher =             NULL,
 559   .ourcert =            NULL,
 560   .peercert =           NULL,
 561   .peerdn =             NULL,
 562   .ocsp =               OCSP_NOT_REQ,
 563 #endif
 564 #ifdef EXPERIMENTAL_DSN_INFO
 565   .smtp_greeting =      NULL,
 566   .helo_response =      NULL,
 567 #endif
 568   .authenticator =      NULL,
 569   .auth_id =            NULL,
 570   .auth_sndr =          NULL,
 571   .dsn_orcpt =          NULL,
 572   .dsn_flags =          0,
 573   .dsn_aware =          0,
 574   .uid =                (uid_t)(-1),
 575   .gid =                (gid_t)(-1),
 576   .flags =              { 0 },
 577   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 578   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 579   .mode =               -1,
 580   .more_errno =         0,
 581   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 582   .basic_errno =        ERRNO_UNKNOWNERROR,
 583   .child_count =        0,
 584   .return_file =        -1,
 585   .special_action =     SPECIAL_NONE,
 586   .transport_return =   DEFER,
 587   .prop = {                                     /* fields that are propagated to children */
 588     .address_data =     NULL,
 589     .domain_data =      NULL,
 590     .localpart_data =   NULL,
 591     .errors_address =   NULL,
 592     .extra_headers =    NULL,
 593     .remove_headers =   NULL,
 594     .variables =        NULL,
 595 #ifdef EXPERIMENTAL_SRS
 596     .srs_sender =       NULL,
 597 #endif
 598     .ignore_error =     FALSE,
 599 #ifdef SUPPORT_I18N
 600     .utf8_msg =         FALSE,
 601     .utf8_downcvt =     FALSE,
 602     .utf8_downcvt_maybe = FALSE
 603 #endif
 604   }
 605 };
 606
 607 uschar *address_file           = NULL;
 608 uschar *address_pipe           = NULL;
 609 tree_node *addresslist_anchor  = NULL;
 610 int     addresslist_count      = 0;
 611 gid_t  *admin_groups           = NULL;
 612
 613 #ifdef EXPERIMENTAL_ARC
 614 struct arc_set *arc_received    = NULL;
 615 int     arc_received_instance   = 0;
 616 int     arc_oldest_pass         = 0;
 617 const uschar *arc_state         = NULL;
 618 const uschar *arc_state_reason  = NULL;
 619 #endif
 620
 621 uschar *authenticated_fail_id  = NULL;
 622 uschar *authenticated_id       = NULL;
 623 uschar *authenticated_sender   = NULL;
 624 auth_instance  *auths          = NULL;
 625 uschar *auth_advertise_hosts   = US"*";
 626 auth_instance auth_defaults    = {
 627     .next =             NULL,
 628     .name =             NULL,
 629     .info =             NULL,
 630     .options_block =    NULL,
 631     .driver_name =      NULL,
 632     .advertise_condition = NULL,
 633     .client_condition = NULL,
 634     .public_name =      NULL,
 635     .set_id =           NULL,
 636     .set_client_id =    NULL,
 637     .mail_auth_condition = NULL,
 638     .server_debug_string = NULL,
 639     .server_condition = NULL,
 640     .client =           FALSE,
 641     .server =           FALSE,
 642     .advertised =       FALSE
 643 };
 644
 645 uschar *auth_defer_msg         = US"reason not recorded";
 646 uschar *auth_defer_user_msg    = US"";
 647 uschar *auth_vars[AUTH_VARS];
 648 int     auto_thaw              = 0;
 649 #ifdef WITH_CONTENT_SCAN
 650 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 651 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 652 #endif
 653
 654 #if BASE_62 == 62
 655 uschar *base62_chars=
 656     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 657 #else
 658 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 659 #endif
 660
 661 uschar *bi_command             = NULL;
 662 uschar *big_buffer             = NULL;
 663 int     big_buffer_size        = BIG_BUFFER_SIZE;
 664 #ifdef EXPERIMENTAL_BRIGHTMAIL
 665 uschar *bmi_alt_location       = NULL;
 666 uschar *bmi_base64_tracker_verdict = NULL;
 667 uschar *bmi_base64_verdict     = NULL;
 668 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 669 int     bmi_deliver            = 1;
 670 int     bmi_run                = 0;
 671 uschar *bmi_verdicts           = NULL;
 672 #endif
 673 int     bsmtp_transaction_linecount = 0;
 674 int     body_8bitmime          = 0;
 675 int     body_linecount         = 0;
 676 int     body_zerocount         = 0;
 677 uschar *bounce_message_file    = NULL;
 678 uschar *bounce_message_text    = NULL;
 679 uschar *bounce_recipient       = NULL;
 680 int     bounce_return_linesize_limit = 998;
 681 int     bounce_return_size_limit = 100*1024;
 682 uschar *bounce_sender_authentication = NULL;
 683
 684 uschar *callout_address        = NULL;
 685 int     callout_cache_domain_positive_expire = 7*24*60*60;
 686 int     callout_cache_domain_negative_expire = 3*60*60;
 687 int     callout_cache_positive_expire = 24*60*60;
 688 int     callout_cache_negative_expire = 2*60*60;
 689 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 690 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 691 int     check_log_inodes       = 100;
 692 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 693 int     check_spool_inodes     = 100;
 694 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 695
 696 uschar *chunking_advertise_hosts = US"*";
 697 unsigned chunking_datasize     = 0;
 698 unsigned chunking_data_left    = 0;
 699 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 700 const pcre *regex_CHUNKING     = NULL;
 701
 702 uschar *client_authenticator   = NULL;
 703 uschar *client_authenticated_id = NULL;
 704 uschar *client_authenticated_sender = NULL;
 705 int     clmacro_count          = 0;
 706 uschar *clmacros[MAX_CLMACROS];
 707 FILE   *config_file            = NULL;
 708 const uschar *config_filename  = NULL;
 709 int     config_lineno          = 0;
 710 #ifdef CONFIGURE_GROUP
 711 gid_t   config_gid             = CONFIGURE_GROUP;
 712 #else
 713 gid_t   config_gid             = 0;
 714 #endif
 715 uschar *config_main_filelist   = US CONFIGURE_FILE
 716                          "\0<-----------Space to patch configure_filename->";
 717 uschar *config_main_filename   = NULL;
 718 uschar *config_main_directory  = NULL;
 719
 720 #ifdef CONFIGURE_OWNER
 721 uid_t   config_uid             = CONFIGURE_OWNER;
 722 #else
 723 uid_t   config_uid             = 0;
 724 #endif
 725
 726 int     connection_max_messages= -1;
 727 uschar *continue_proxy_cipher  = NULL;
 728 uschar *continue_hostname      = NULL;
 729 uschar *continue_host_address  = NULL;
 730 int     continue_sequence      = 1;
 731 uschar *continue_transport     = NULL;
 732
 733 uschar *csa_status             = NULL;
 734 cut_t   cutthrough = {
 735   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 736   .delivery =           FALSE,                          /* when to attempt */
 737   .defer_pass =         FALSE,                          /* on defer: spool locally */
 738   .is_tls =             FALSE,                          /* not a TLS conn yet */
 739   .cctx =               {.sock = -1},                   /* open connection */
 740   .nrcpt =              0,                              /* number of addresses */
 741 };
 742
 743 int     daemon_notifier_fd     = -1;
 744 uschar *daemon_smtp_port       = US"smtp";
 745 int     daemon_startup_retries = 9;
 746 int     daemon_startup_sleep   = 30;
 747
 748 #ifdef EXPERIMENTAL_DCC
 749 uschar *dcc_header             = NULL;
 750 uschar *dcc_result             = NULL;
 751 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 752 uschar *dccifd_options         = US"header";
 753 #endif
 754
 755 int     debug_fd               = -1;
 756 FILE   *debug_file             = NULL;
 757 int     debug_notall[]         = {
 758   Di_memory,
 759   Di_noutf8,
 760   -1
 761 };
 762 bit_table debug_options[]      = { /* must be in alphabetical order and use
 763                                  only the enum values from macro.h */
 764   BIT_TABLE(D, acl),
 765   BIT_TABLE(D, all),
 766   BIT_TABLE(D, auth),
 767   BIT_TABLE(D, deliver),
 768   BIT_TABLE(D, dns),
 769   BIT_TABLE(D, dnsbl),
 770   BIT_TABLE(D, exec),
 771   BIT_TABLE(D, expand),
 772   BIT_TABLE(D, filter),
 773   BIT_TABLE(D, hints_lookup),
 774   BIT_TABLE(D, host_lookup),
 775   BIT_TABLE(D, ident),
 776   BIT_TABLE(D, interface),
 777   BIT_TABLE(D, lists),
 778   BIT_TABLE(D, load),
 779   BIT_TABLE(D, local_scan),
 780   BIT_TABLE(D, lookup),
 781   BIT_TABLE(D, memory),
 782   BIT_TABLE(D, noutf8),
 783   BIT_TABLE(D, pid),
 784   BIT_TABLE(D, process_info),
 785   BIT_TABLE(D, queue_run),
 786   BIT_TABLE(D, receive),
 787   BIT_TABLE(D, resolver),
 788   BIT_TABLE(D, retry),
 789   BIT_TABLE(D, rewrite),
 790   BIT_TABLE(D, route),
 791   BIT_TABLE(D, timestamp),
 792   BIT_TABLE(D, tls),
 793   BIT_TABLE(D, transport),
 794   BIT_TABLE(D, uid),
 795   BIT_TABLE(D, verify),
 796 };
 797 int     debug_options_count    = nelem(debug_options);
 798
 799 unsigned int debug_selector    = 0;
 800 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 801 uschar *delay_warning_condition=
 802   US"${if or {"
 803             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 804             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 805             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 806             "} {no}{yes}}";
 807 uschar *deliver_address_data   = NULL;
 808 int     deliver_datafile       = -1;
 809 const uschar *deliver_domain   = NULL;
 810 uschar *deliver_domain_data    = NULL;
 811 const uschar *deliver_domain_orig = NULL;
 812 const uschar *deliver_domain_parent = NULL;
 813 time_t  deliver_frozen_at      = 0;
 814 uschar *deliver_home           = NULL;
 815 const uschar *deliver_host     = NULL;
 816 const uschar *deliver_host_address = NULL;
 817 int     deliver_host_port      = 0;
 818 uschar *deliver_in_buffer      = NULL;
 819 ino_t   deliver_inode          = 0;
 820 uschar *deliver_localpart      = NULL;
 821 uschar *deliver_localpart_data = NULL;
 822 uschar *deliver_localpart_orig = NULL;
 823 uschar *deliver_localpart_parent = NULL;
 824 uschar *deliver_localpart_prefix = NULL;
 825 uschar *deliver_localpart_suffix = NULL;
 826 uschar *deliver_localpart_verified = NULL;
 827 uschar *deliver_out_buffer     = NULL;
 828 int     deliver_queue_load_max = -1;
 829 address_item  *deliver_recipients = NULL;
 830 uschar *deliver_selectstring   = NULL;
 831 uschar *deliver_selectstring_sender = NULL;
 832
 833 #ifndef DISABLE_DKIM
 834 unsigned dkim_collect_input      = 0;
 835 uschar *dkim_cur_signer          = NULL;
 836 int     dkim_key_length          = 0;
 837 void   *dkim_signatures          = NULL;
 838 uschar *dkim_signers             = NULL;
 839 uschar *dkim_signing_domain      = NULL;
 840 uschar *dkim_signing_selector    = NULL;
 841 uschar *dkim_verify_hashes       = US"sha256:sha512";
 842 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 843 BOOL    dkim_verify_minimal      = FALSE;
 844 uschar *dkim_verify_overall      = NULL;
 845 uschar *dkim_verify_signers      = US"$dkim_signers";
 846 uschar *dkim_verify_status       = NULL;
 847 uschar *dkim_verify_reason       = NULL;
 848 #endif
 849 #ifdef SUPPORT_DMARC
 850 uschar *dmarc_domain_policy     = NULL;
 851 uschar *dmarc_forensic_sender   = NULL;
 852 uschar *dmarc_history_file      = NULL;
 853 uschar *dmarc_status            = NULL;
 854 uschar *dmarc_status_text       = NULL;
 855 uschar *dmarc_tld_file          = NULL;
 856 uschar *dmarc_used_domain       = NULL;
 857 #endif
 858
 859 uschar *dns_again_means_nonexist = NULL;
 860 int     dns_csa_search_limit   = 5;
 861 int     dns_cname_loops        = 1;
 862 #ifdef SUPPORT_DANE
 863 int     dns_dane_ok            = -1;
 864 #endif
 865 uschar *dns_ipv4_lookup        = NULL;
 866 int     dns_retrans            = 0;
 867 int     dns_retry              = 0;
 868 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 869 uschar *dns_trust_aa           = NULL;
 870 int     dns_use_edns0          = -1; /* <0 = not coerced */
 871 uschar *dnslist_domain         = NULL;
 872 uschar *dnslist_matched        = NULL;
 873 uschar *dnslist_text           = NULL;
 874 uschar *dnslist_value          = NULL;
 875 tree_node *domainlist_anchor   = NULL;
 876 int     domainlist_count       = 0;
 877 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 878
 879 int     errno_quota            = ERRNO_QUOTA;
 880 uschar *errors_copy            = NULL;
 881 int     error_handling         = ERRORS_SENDER;
 882 uschar *errors_reply_to        = NULL;
 883 int     errors_sender_rc       = EXIT_FAILURE;
 884 #ifndef DISABLE_EVENT
 885 uschar *event_action             = NULL;        /* expansion for delivery events */
 886 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 887 int     event_defer_errno        = 0;
 888 const uschar *event_name         = NULL;        /* event name variable */
 889 #endif
 890
 891
 892 gid_t   exim_gid               = EXIM_GID;
 893 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 894                         "\0<---------------Space to patch exim_path->";
 895 uid_t   exim_uid               = EXIM_UID;
 896 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 897 int     expand_forbid          = 0;
 898 int     expand_nlength[EXPAND_MAXN+1];
 899 int     expand_nmax            = -1;
 900 uschar *expand_nstring[EXPAND_MAXN+1];
 901 uschar *expand_string_message;
 902 uschar *extra_local_interfaces = NULL;
 903
 904 int     fake_response          = OK;
 905 uschar *fake_response_text     = US"Your message has been rejected but is "
 906                                    "being kept for evaluation.\nIf it was a "
 907                                    "legitimate message, it may still be "
 908                                    "delivered to the target recipient(s).";
 909 int     filter_n[FILTER_VARIABLE_COUNT];
 910 int     filter_sn[FILTER_VARIABLE_COUNT];
 911 int     filter_test            = FTEST_NONE;
 912 uschar *filter_test_sfile      = NULL;
 913 uschar *filter_test_ufile      = NULL;
 914 uschar *filter_thisaddress     = NULL;
 915 int     finduser_retries       = 0;
 916 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 917 uschar *freeze_tell            = NULL;
 918 uschar *freeze_tell_config     = NULL;
 919 uschar *fudged_queue_times     = US"";
 920
 921 uschar *gecos_name             = NULL;
 922 uschar *gecos_pattern          = NULL;
 923 rewrite_rule  *global_rewrite_rules = NULL;
 924
 925 volatile sig_atomic_t had_command_timeout = 0;
 926 volatile sig_atomic_t had_command_sigterm = 0;
 927 volatile sig_atomic_t had_data_timeout    = 0;
 928 volatile sig_atomic_t had_data_sigint     = 0;
 929 uschar *headers_charset        = US HEADERS_CHARSET;
 930 int     header_insert_maxlen   = 64 * 1024;
 931 header_line  *header_last      = NULL;
 932 header_line  *header_list      = NULL;
 933 int     header_maxsize         = HEADER_MAXSIZE;
 934 int     header_line_maxsize    = 0;
 935
 936 header_name header_names[] = {
 937   /* name               len     allow_resent    htype */
 938   { US"bcc",            3,      TRUE,           htype_bcc },
 939   { US"cc",             2,      TRUE,           htype_cc },
 940   { US"date",           4,      TRUE,           htype_date },
 941   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 942   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 943   { US"from",           4,      TRUE,           htype_from },
 944   { US"message-id",    10,      TRUE,           htype_id },
 945   { US"received",       8,      FALSE,          htype_received },
 946   { US"reply-to",       8,      FALSE,          htype_reply_to },
 947   { US"return-path",   11,      FALSE,          htype_return_path },
 948   { US"sender",         6,      TRUE,           htype_sender },
 949   { US"subject",        7,      FALSE,          htype_subject },
 950   { US"to",             2,      TRUE,           htype_to }
 951 };
 952
 953 int header_names_size          = nelem(header_names);
 954
 955 uschar *helo_accept_junk_hosts = NULL;
 956 uschar *helo_allow_chars       = US"";
 957 uschar *helo_lookup_domains    = US"@ : @[]";
 958 uschar *helo_try_verify_hosts  = NULL;
 959 uschar *helo_verify_hosts      = NULL;
 960 const uschar *hex_digits       = CUS"0123456789abcdef";
 961 uschar *hold_domains           = NULL;
 962 uschar *host_data              = NULL;
 963 uschar *host_lookup            = NULL;
 964 uschar *host_lookup_order      = US"bydns:byaddr";
 965 uschar *host_lookup_msg        = US"";
 966 int     host_number            = 0;
 967 uschar *host_number_string     = NULL;
 968 uschar *host_reject_connection = NULL;
 969 tree_node *hostlist_anchor     = NULL;
 970 int     hostlist_count         = 0;
 971 uschar *hosts_treat_as_local   = NULL;
 972 uschar *hosts_connection_nolog = NULL;
 973
 974 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 975 uschar *ignore_fromline_hosts  = NULL;
 976 int     inetd_wait_timeout     = -1;
 977 uschar *initial_cwd            = NULL;
 978 uschar *interface_address      = NULL;
 979 int     interface_port         = -1;
 980 uschar *iterate_item           = NULL;
 981
 982 int     journal_fd             = -1;
 983
 984 uschar *keep_environment       = NULL;
 985
 986 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 987
 988 uschar *eldap_dn               = NULL;
 989 int     load_average           = -2;
 990 uschar *local_from_prefix      = NULL;
 991 uschar *local_from_suffix      = NULL;
 992
 993 #if HAVE_IPV6
 994 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 995 #else
 996 uschar *local_interfaces       = US"0.0.0.0";
 997 #endif
 998
 999 #ifdef HAVE_LOCAL_SCAN
1000 uschar *local_scan_data        = NULL;
1001 int     local_scan_timeout     = 5*60;
1002 #endif
1003 gid_t   local_user_gid         = (gid_t)(-1);
1004 uid_t   local_user_uid         = (uid_t)(-1);
1005
1006 tree_node *localpartlist_anchor= NULL;
1007 int     localpartlist_count    = 0;
1008 uschar *log_buffer             = NULL;
1009
1010 int     log_default[]          = { /* for initializing log_selector */
1011   Li_acl_warn_skipped,
1012   Li_connection_reject,
1013   Li_delay_delivery,
1014   Li_dkim,
1015   Li_dnslist_defer,
1016   Li_etrn,
1017   Li_host_lookup_failed,
1018   Li_lost_incoming_connection,
1019   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1020   Li_msg_id,
1021   Li_queue_run,
1022   Li_rejected_header,
1023   Li_retry_defer,
1024   Li_sender_verify_fail,
1025   Li_size_reject,
1026   Li_skip_delivery,
1027   Li_smtp_confirmation,
1028   Li_tls_certificate_verified,
1029   Li_tls_cipher,
1030   -1
1031 };
1032
1033 uschar *log_file_path          = US LOG_FILE_PATH
1034                            "\0<--------------Space to patch log_file_path->";
1035
1036 int     log_notall[]           = {
1037   -1
1038 };
1039 bit_table log_options[]        = { /* must be in alphabetical order,
1040                                 with definitions from enum logbit. */
1041   BIT_TABLE(L, 8bitmime),
1042   BIT_TABLE(L, acl_warn_skipped),
1043   BIT_TABLE(L, address_rewrite),
1044   BIT_TABLE(L, all),
1045   BIT_TABLE(L, all_parents),
1046   BIT_TABLE(L, arguments),
1047   BIT_TABLE(L, connection_reject),
1048   BIT_TABLE(L, delay_delivery),
1049   BIT_TABLE(L, deliver_time),
1050   BIT_TABLE(L, delivery_size),
1051 #ifndef DISABLE_DKIM
1052   BIT_TABLE(L, dkim),
1053   BIT_TABLE(L, dkim_verbose),
1054 #endif
1055   BIT_TABLE(L, dnslist_defer),
1056   BIT_TABLE(L, dnssec),
1057   BIT_TABLE(L, etrn),
1058   BIT_TABLE(L, host_lookup_failed),
1059   BIT_TABLE(L, ident_timeout),
1060   BIT_TABLE(L, incoming_interface),
1061   BIT_TABLE(L, incoming_port),
1062   BIT_TABLE(L, lost_incoming_connection),
1063   BIT_TABLE(L, millisec),
1064   BIT_TABLE(L, msg_id),
1065   BIT_TABLE(L, msg_id_created),
1066   BIT_TABLE(L, outgoing_interface),
1067   BIT_TABLE(L, outgoing_port),
1068   BIT_TABLE(L, pid),
1069   BIT_TABLE(L, pipelining),
1070 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1071   BIT_TABLE(L, proxy),
1072 #endif
1073   BIT_TABLE(L, queue_run),
1074   BIT_TABLE(L, queue_time),
1075   BIT_TABLE(L, queue_time_overall),
1076   BIT_TABLE(L, receive_time),
1077   BIT_TABLE(L, received_recipients),
1078   BIT_TABLE(L, received_sender),
1079   BIT_TABLE(L, rejected_header),
1080   { US"rejected_headers", Li_rejected_header },
1081   BIT_TABLE(L, retry_defer),
1082   BIT_TABLE(L, return_path_on_delivery),
1083   BIT_TABLE(L, sender_on_delivery),
1084   BIT_TABLE(L, sender_verify_fail),
1085   BIT_TABLE(L, size_reject),
1086   BIT_TABLE(L, skip_delivery),
1087   BIT_TABLE(L, smtp_confirmation),
1088   BIT_TABLE(L, smtp_connection),
1089   BIT_TABLE(L, smtp_incomplete_transaction),
1090   BIT_TABLE(L, smtp_mailauth),
1091   BIT_TABLE(L, smtp_no_mail),
1092   BIT_TABLE(L, smtp_protocol_error),
1093   BIT_TABLE(L, smtp_syntax_error),
1094   BIT_TABLE(L, subject),
1095   BIT_TABLE(L, tls_certificate_verified),
1096   BIT_TABLE(L, tls_cipher),
1097   BIT_TABLE(L, tls_peerdn),
1098   BIT_TABLE(L, tls_resumption),
1099   BIT_TABLE(L, tls_sni),
1100   BIT_TABLE(L, unknown_in_list),
1101 };
1102 int     log_options_count      = nelem(log_options);
1103
1104 int     log_reject_target      = 0;
1105 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1106 uschar *log_selector_string    = NULL;
1107 FILE   *log_stderr             = NULL;
1108 uschar *login_sender_address   = NULL;
1109 uschar *lookup_dnssec_authenticated = NULL;
1110 int     lookup_open_max        = 25;
1111 uschar *lookup_value           = NULL;
1112
1113 macro_item *macros_user        = NULL;
1114 uschar *mailstore_basename     = NULL;
1115 #ifdef WITH_CONTENT_SCAN
1116 uschar *malware_name           = NULL;  /* Virus Name */
1117 #endif
1118 int     max_received_linelength= 0;
1119 int     max_username_length    = 0;
1120 int     message_age            = 0;
1121 uschar *message_body           = NULL;
1122 uschar *message_body_end       = NULL;
1123 int     message_body_size      = 0;
1124 int     message_body_visible   = 500;
1125 int     message_ended          = END_NOTSTARTED;
1126 uschar *message_headers        = NULL;
1127 uschar *message_id;
1128 uschar *message_id_domain      = NULL;
1129 uschar *message_id_text        = NULL;
1130 struct timeval message_id_tv   = { 0, 0 };
1131 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1132 uschar *message_id_external;
1133 int     message_linecount      = 0;
1134 int     message_size           = 0;
1135 uschar *message_size_limit     = US"50M";
1136 #ifdef SUPPORT_I18N
1137 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1138 #endif
1139 uschar  message_subdir[2]      = { 0, 0 };
1140 uschar *message_reference      = NULL;
1141
1142 /* MIME ACL expandables */
1143 #ifdef WITH_CONTENT_SCAN
1144 int     mime_anomaly_level     = 0;
1145 const uschar *mime_anomaly_text      = NULL;
1146 uschar *mime_boundary          = NULL;
1147 uschar *mime_charset           = NULL;
1148 uschar *mime_content_description = NULL;
1149 uschar *mime_content_disposition = NULL;
1150 uschar *mime_content_id        = NULL;
1151 unsigned int mime_content_size = 0;
1152 uschar *mime_content_transfer_encoding = NULL;
1153 uschar *mime_content_type      = NULL;
1154 uschar *mime_decoded_filename  = NULL;
1155 uschar *mime_filename          = NULL;
1156 int     mime_is_multipart      = 0;
1157 int     mime_is_coverletter    = 0;
1158 int     mime_is_rfc822         = 0;
1159 int     mime_part_count        = -1;
1160 #endif
1161
1162 uid_t  *never_users            = NULL;
1163
1164 const int on                   = 1;     /* for setsockopt */
1165 const int off                  = 0;
1166
1167 uid_t   original_euid;
1168 gid_t   originator_gid;
1169 uschar *originator_login       = NULL;
1170 uschar *originator_name        = NULL;
1171 uid_t   originator_uid;
1172 uschar *override_local_interfaces = NULL;
1173 uschar *override_pid_file_path = NULL;
1174
1175 uschar *percent_hack_domains   = NULL;
1176 uschar *pid_file_path          = US PID_FILE_PATH
1177                            "\0<--------------Space to patch pid_file_path->";
1178 #ifndef DISABLE_PIPE_CONNECT
1179 uschar *pipe_connect_advertise_hosts = US"*";
1180 #endif
1181 uschar *pipelining_advertise_hosts = US"*";
1182 uschar *primary_hostname       = NULL;
1183 uschar *process_info;
1184 int     process_info_len       = 0;
1185 uschar *process_log_path       = NULL;
1186
1187 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1188 uschar *hosts_proxy            = NULL;
1189 uschar *proxy_external_address = NULL;
1190 int     proxy_external_port    = 0;
1191 uschar *proxy_local_address    = NULL;
1192 int     proxy_local_port       = 0;
1193 #endif
1194
1195 uschar *prvscheck_address      = NULL;
1196 uschar *prvscheck_keynum       = NULL;
1197 uschar *prvscheck_result       = NULL;
1198
1199
1200 const uschar *qualify_domain_recipient = NULL;
1201 uschar *qualify_domain_sender  = NULL;
1202 uschar *queue_domains          = NULL;
1203 int     queue_interval         = -1;
1204 uschar *queue_name             = US"";
1205 uschar *queue_name_dest        = NULL;
1206 uschar *queue_only_file        = NULL;
1207 int     queue_only_load        = -1;
1208 uschar *queue_run_max          = US"5";
1209 pid_t   queue_run_pid          = (pid_t)0;
1210 int     queue_run_pipe         = -1;
1211 uschar *queue_smtp_domains     = NULL;
1212
1213 uint32_t random_seed           = 0;
1214 tree_node *ratelimiters_cmd    = NULL;
1215 tree_node *ratelimiters_conn   = NULL;
1216 tree_node *ratelimiters_mail   = NULL;
1217 uschar *raw_active_hostname    = NULL;
1218 uschar *raw_sender             = NULL;
1219 uschar **raw_recipients        = NULL;
1220 int     raw_recipients_count   = 0;
1221
1222 int     rcpt_count             = 0;
1223 int     rcpt_fail_count        = 0;
1224 int     rcpt_defer_count       = 0;
1225 gid_t   real_gid;
1226 uid_t   real_uid;
1227 int     receive_linecount      = 0;
1228 int     receive_messagecount   = 0;
1229 int     receive_timeout        = 0;
1230 int     received_count         = 0;
1231 uschar *received_for           = NULL;
1232
1233 /*  This is the default text for Received headers generated by Exim. The
1234 date  will be automatically added on the end. */
1235
1236 uschar *received_header_text   = US
1237      "Received: "
1238      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1239        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1240          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1241      "by $primary_hostname "
1242      "${if def:received_protocol {with $received_protocol }}"
1243 #ifndef DISABLE_TLS
1244      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1245      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1246 #endif
1247      "(Exim $version_number)\n\t"
1248      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1249      "id $message_exim_id"
1250      "${if def:received_for {\n\tfor $received_for}}"
1251      "\0<---------------Space to patch received_header_text->";
1252
1253 int     received_headers_max   = 30;
1254 uschar *received_protocol      = NULL;
1255 struct timeval received_time   = { 0, 0 };
1256 struct timeval received_time_taken = { 0, 0 };
1257 uschar *recipient_data         = NULL;
1258 uschar *recipient_unqualified_hosts = NULL;
1259 uschar *recipient_verify_failure = NULL;
1260 int     recipients_count       = 0;
1261 recipient_item  *recipients_list = NULL;
1262 int     recipients_list_max    = 0;
1263 int     recipients_max         = 0;
1264 const pcre *regex_AUTH         = NULL;
1265 const pcre *regex_check_dns_names = NULL;
1266 const pcre *regex_From         = NULL;
1267 const pcre *regex_IGNOREQUOTA  = NULL;
1268 const pcre *regex_PIPELINING   = NULL;
1269 const pcre *regex_SIZE         = NULL;
1270 #ifndef DISABLE_PIPE_CONNECT
1271 const pcre *regex_EARLY_PIPE   = NULL;
1272 #endif
1273 const pcre *regex_ismsgid      = NULL;
1274 const pcre *regex_smtp_code    = NULL;
1275 uschar *regex_vars[REGEX_VARS];
1276 #ifdef WHITELIST_D_MACROS
1277 const pcre *regex_whitelisted_macro = NULL;
1278 #endif
1279 #ifdef WITH_CONTENT_SCAN
1280 uschar *regex_match_string     = NULL;
1281 #endif
1282 int     remote_delivery_count  = 0;
1283 int     remote_max_parallel    = 2;
1284 uschar *remote_sort_domains    = NULL;
1285 int     retry_data_expire      = 7*24*60*60;
1286 int     retry_interval_max     = 24*60*60;
1287 int     retry_maximum_timeout  = 0;        /* set from retry config */
1288 retry_config  *retries         = NULL;
1289 uschar *return_path            = NULL;
1290 int     rewrite_existflags     = 0;
1291 uschar *rfc1413_hosts          = US"@[]";
1292 int     rfc1413_query_timeout  = 0;
1293 uid_t   root_gid               = ROOT_GID;
1294 uid_t   root_uid               = ROOT_UID;
1295
1296 router_instance  *routers  = NULL;
1297 router_instance  router_defaults = {
1298     .next =                     NULL,
1299     .name =                     NULL,
1300     .info =                     NULL,
1301     .options_block =            NULL,
1302     .driver_name =              NULL,
1303
1304     .address_data =             NULL,
1305 #ifdef EXPERIMENTAL_BRIGHTMAIL
1306     .bmi_rule =                 NULL,
1307 #endif
1308     .cannot_route_message =     NULL,
1309     .condition =                NULL,
1310     .current_directory =        NULL,
1311     .debug_string =             NULL,
1312     .domains =                  NULL,
1313     .errors_to =                NULL,
1314     .expand_gid =               NULL,
1315     .expand_uid =               NULL,
1316     .expand_more =              NULL,
1317     .expand_unseen =            NULL,
1318     .extra_headers =            NULL,
1319     .fallback_hosts =           NULL,
1320     .home_directory =           NULL,
1321     .ignore_target_hosts =      NULL,
1322     .local_parts =              NULL,
1323     .pass_router_name =         NULL,
1324     .prefix =                   NULL,
1325     .redirect_router_name =     NULL,
1326     .remove_headers =           NULL,
1327     .require_files =            NULL,
1328     .router_home_directory =    NULL,
1329     .self =                     US"freeze",
1330     .senders =                  NULL,
1331     .suffix =                   NULL,
1332     .translate_ip_address =     NULL,
1333     .transport_name =           NULL,
1334
1335     .address_test =             TRUE,
1336 #ifdef EXPERIMENTAL_BRIGHTMAIL
1337     .bmi_deliver_alternate =    FALSE,
1338     .bmi_deliver_default =      FALSE,
1339     .bmi_dont_deliver =         FALSE,
1340 #endif
1341     .expn =                     TRUE,
1342     .caseful_local_part =       FALSE,
1343     .check_local_user =         FALSE,
1344     .disable_logging =          FALSE,
1345     .fail_verify_recipient =    FALSE,
1346     .fail_verify_sender =       FALSE,
1347     .gid_set =                  FALSE,
1348     .initgroups =               FALSE,
1349     .log_as_local =             TRUE_UNSET,
1350     .more =                     TRUE,
1351     .pass_on_timeout =          FALSE,
1352     .prefix_optional =          FALSE,
1353     .repeat_use =               TRUE,
1354     .retry_use_local_part =     TRUE_UNSET,
1355     .same_domain_copy_routing = FALSE,
1356     .self_rewrite =             FALSE,
1357     .set =                      NULL,
1358     .suffix_optional =          FALSE,
1359     .verify_only =              FALSE,
1360     .verify_recipient =         TRUE,
1361     .verify_sender =            TRUE,
1362     .uid_set =                  FALSE,
1363     .unseen =                   FALSE,
1364     .dsn_lasthop =              FALSE,
1365
1366     .self_code =                self_freeze,
1367     .uid =                      (uid_t)(-1),
1368     .gid =                      (gid_t)(-1),
1369
1370     .fallback_hostlist =        NULL,
1371     .transport =                NULL,
1372     .pass_router =              NULL,
1373     .redirect_router =          NULL,
1374
1375     .dnssec =                   { .request= US"*", .require=NULL },
1376 };
1377
1378 uschar *router_name            = NULL;
1379 tree_node *router_var          = NULL;
1380
1381 ip_address_item *running_interfaces = NULL;
1382
1383 /* This is a weird one. The following string gets patched in the binary by the
1384 script that sets up a copy of Exim for running in the test harness. It seems
1385 that compilers are now clever, and share constant strings if they can.
1386 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1387 make use of the end of this string in order to save space. So the patching then
1388 wrecks this. We defeat this optimization by adding some additional characters
1389 onto the end of the string. */
1390
1391 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1392
1393 int     runrc                  = 0;
1394
1395 uschar *search_error_message   = NULL;
1396 uschar *self_hostname          = NULL;
1397 uschar *sender_address         = NULL;
1398 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1399 uschar *sender_address_data    = NULL;
1400 uschar *sender_address_unrewritten = NULL;
1401 uschar *sender_data            = NULL;
1402 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1403 uschar *sender_fullhost        = NULL;
1404 uschar *sender_helo_name       = NULL;
1405 uschar **sender_host_aliases   = &no_aliases;
1406 uschar *sender_host_address    = NULL;
1407 uschar *sender_host_authenticated = NULL;
1408 uschar *sender_host_auth_pubname  = NULL;
1409 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1410 uschar *sender_host_name       = NULL;
1411 int     sender_host_port       = 0;
1412 uschar *sender_ident           = NULL;
1413 uschar *sender_rate            = NULL;
1414 uschar *sender_rate_limit      = NULL;
1415 uschar *sender_rate_period     = NULL;
1416 uschar *sender_rcvhost         = NULL;
1417 uschar *sender_unqualified_hosts = NULL;
1418 uschar *sender_verify_failure = NULL;
1419 address_item *sender_verified_list  = NULL;
1420 address_item *sender_verified_failed = NULL;
1421 int     sender_verified_rc     = -1;
1422 uschar *sending_ip_address     = NULL;
1423 int     sending_port           = -1;
1424 SIGNAL_BOOL sigalrm_seen       = FALSE;
1425 const uschar *sigalarm_setter  = NULL;
1426 uschar **sighup_argv           = NULL;
1427 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1428 int     smtp_accept_count      = 0;
1429 int     smtp_accept_max        = 20;
1430 int     smtp_accept_max_nonmail= 10;
1431 uschar *smtp_accept_max_nonmail_hosts = US"*";
1432 int     smtp_accept_max_per_connection = 1000;
1433 uschar *smtp_accept_max_per_host = NULL;
1434 int     smtp_accept_queue      = 0;
1435 int     smtp_accept_queue_per_connection = 10;
1436 int     smtp_accept_reserve    = 0;
1437 uschar *smtp_active_hostname   = NULL;
1438 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1439                              "Exim $version_number $tod_full"
1440                              "\0<---------------Space to patch smtp_banner->";
1441 int     smtp_ch_index          = 0;
1442 uschar *smtp_cmd_argument      = NULL;
1443 uschar *smtp_cmd_buffer        = NULL;
1444 struct timeval smtp_connection_start  = {0,0};
1445 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1446 int     smtp_connect_backlog   = 20;
1447 double  smtp_delay_mail        = 0.0;
1448 double  smtp_delay_rcpt        = 0.0;
1449 FILE   *smtp_in                = NULL;
1450 int     smtp_load_reserve      = -1;
1451 int     smtp_mailcmd_count     = 0;
1452 FILE   *smtp_out               = NULL;
1453 uschar *smtp_etrn_command      = NULL;
1454 int     smtp_max_synprot_errors= 3;
1455 int     smtp_max_unknown_commands = 3;
1456 uschar *smtp_notquit_reason    = NULL;
1457 uschar *smtp_ratelimit_hosts   = NULL;
1458 uschar *smtp_ratelimit_mail    = NULL;
1459 uschar *smtp_ratelimit_rcpt    = NULL;
1460 uschar *smtp_read_error        = US"";
1461 int     smtp_receive_timeout   = 5*60;
1462 uschar *smtp_receive_timeout_s = NULL;
1463 uschar *smtp_reserve_hosts     = NULL;
1464 int     smtp_rlm_base          = 0;
1465 double  smtp_rlm_factor        = 0.0;
1466 int     smtp_rlm_limit         = 0;
1467 int     smtp_rlm_threshold     = INT_MAX;
1468 int     smtp_rlr_base          = 0;
1469 double  smtp_rlr_factor        = 0.0;
1470 int     smtp_rlr_limit         = 0;
1471 int     smtp_rlr_threshold     = INT_MAX;
1472 unsigned smtp_peer_options     = 0;
1473 unsigned smtp_peer_options_wrap= 0;
1474 #ifdef SUPPORT_I18N
1475 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1476 #endif
1477
1478 #ifdef WITH_CONTENT_SCAN
1479 uschar *spamd_address          = US"127.0.0.1 783";
1480 uschar *spam_bar               = NULL;
1481 uschar *spam_report            = NULL;
1482 uschar *spam_action            = NULL;
1483 uschar *spam_score             = NULL;
1484 uschar *spam_score_int         = NULL;
1485 #endif
1486 #ifdef SUPPORT_SPF
1487 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1488 uschar *spf_header_comment     = NULL;
1489 uschar *spf_received           = NULL;
1490 uschar *spf_result             = NULL;
1491 uschar *spf_smtp_comment       = NULL;
1492 #endif
1493
1494 FILE   *spool_data_file        = NULL;
1495 uschar *spool_directory        = US SPOOL_DIRECTORY
1496                            "\0<--------------Space to patch spool_directory->";
1497 #ifdef EXPERIMENTAL_SRS
1498 uschar *srs_config             = NULL;
1499 uschar *srs_db_address         = NULL;
1500 uschar *srs_db_key             = NULL;
1501 int     srs_hashlength         = 6;
1502 int     srs_hashmin            = -1;
1503 int     srs_maxage             = 31;
1504 uschar *srs_orig_recipient     = NULL;
1505 uschar *srs_orig_sender        = NULL;
1506 uschar *srs_recipient          = NULL;
1507 uschar *srs_secrets            = NULL;
1508 uschar *srs_status             = NULL;
1509 #endif
1510 #ifdef EXPERIMENTAL_SRS_NATIVE
1511 uschar *srs_recipient          = NULL;
1512 #endif
1513 int     string_datestamp_offset= -1;
1514 int     string_datestamp_length= 0;
1515 int     string_datestamp_type  = -1;
1516 uschar *submission_domain      = NULL;
1517 uschar *submission_name        = NULL;
1518 int     syslog_facility        = LOG_MAIL;
1519 uschar *syslog_processname     = US"exim";
1520 uschar *system_filter          = NULL;
1521
1522 uschar *system_filter_directory_transport = NULL;
1523 uschar *system_filter_file_transport = NULL;
1524 uschar *system_filter_pipe_transport = NULL;
1525 uschar *system_filter_reply_transport = NULL;
1526
1527 gid_t   system_filter_gid      = 0;
1528 uid_t   system_filter_uid      = (uid_t)-1;
1529
1530 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1531 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1532 #ifdef USE_TCP_WRAPPERS
1533 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1534 #endif
1535 int     test_harness_load_avg  = 0;
1536 int     thismessage_size_limit = 0;
1537 int     timeout_frozen_after   = 0;
1538 #ifdef MEASURE_TIMING
1539 struct timeval timestamp_startup;
1540 #endif
1541
1542 transport_instance  *transports = NULL;
1543
1544 transport_instance  transport_defaults = {
1545     .next =                     NULL,
1546     .name =                     NULL,
1547     .info =                     NULL,
1548     .options_block =            NULL,
1549     .driver_name =              NULL,
1550     .setup =                    NULL,
1551     .batch_max =                1,
1552     .batch_id =                 NULL,
1553     .home_dir =                 NULL,
1554     .current_dir =              NULL,
1555     .expand_multi_domain =      NULL,
1556     .multi_domain =             TRUE,
1557     .overrides_hosts =          FALSE,
1558     .max_addresses =            100,
1559     .connection_max_messages =  500,
1560     .deliver_as_creator =       FALSE,
1561     .disable_logging =          FALSE,
1562     .initgroups =               FALSE,
1563     .uid_set =                  FALSE,
1564     .gid_set =                  FALSE,
1565     .uid =                      (uid_t)(-1),
1566     .gid =                      (gid_t)(-1),
1567     .expand_uid =               NULL,
1568     .expand_gid =               NULL,
1569     .warn_message =             NULL,
1570     .shadow =                   NULL,
1571     .shadow_condition =         NULL,
1572     .filter_command =           NULL,
1573     .add_headers =              NULL,
1574     .remove_headers =           NULL,
1575     .return_path =              NULL,
1576     .debug_string =             NULL,
1577     .max_parallel =             NULL,
1578     .message_size_limit =       NULL,
1579     .headers_rewrite =          NULL,
1580     .rewrite_rules =            NULL,
1581     .rewrite_existflags =       0,
1582     .filter_timeout =           300,
1583     .body_only =                FALSE,
1584     .delivery_date_add =        FALSE,
1585     .envelope_to_add =          FALSE,
1586     .headers_only =             FALSE,
1587     .rcpt_include_affixes =     FALSE,
1588     .return_path_add =          FALSE,
1589     .return_output =            FALSE,
1590     .return_fail_output =       FALSE,
1591     .log_output =               FALSE,
1592     .log_fail_output =          FALSE,
1593     .log_defer_output =         FALSE,
1594     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1595                                                  1 nor 0 so can detect unset */
1596 #ifndef DISABLE_EVENT
1597    .event_action =              NULL
1598 #endif
1599 };
1600
1601 int     transport_count;
1602 uschar *transport_name          = NULL;
1603 int     transport_newlines;
1604 const uschar **transport_filter_argv  = NULL;
1605 int     transport_filter_timeout;
1606 int     transport_write_timeout= 0;
1607
1608 tree_node  *tree_dns_fails     = NULL;
1609 tree_node  *tree_duplicates    = NULL;
1610 tree_node  *tree_nonrecipients = NULL;
1611 tree_node  *tree_unusable      = NULL;
1612
1613 gid_t  *trusted_groups         = NULL;
1614 uid_t  *trusted_users          = NULL;
1615 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1616
1617 uschar *unknown_login          = NULL;
1618 uschar *unknown_username       = NULL;
1619 uschar *untrusted_set_sender   = NULL;
1620
1621 /*  A regex for matching a "From_" line in an incoming message, in the form
1622
1623     From ph10 Fri Jan  5 12:35 GMT 1996
1624
1625 which  the "mail" commands send to the MTA (undocumented, of course), or in
1626 the  form
1627
1628     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1629
1630 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1631 Because  of variations in time formats, just match up to the minutes. That
1632 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1633 so  just require one digit for hours and minutes. The weekday is also absent
1634 in  some forms. */
1635
1636 uschar *uucp_from_pattern      = US
1637    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1638    "(?:"                                          /* Non-extracting bracket */
1639    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1640    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1641    ")"                                            /* End alternation */
1642    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1643
1644 uschar *uucp_from_sender       = US"$1";
1645
1646 uschar *verify_mode            = NULL;
1647 uschar *version_copyright      =
1648  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1649    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1650 uschar *version_date           = US"?";
1651 uschar *version_cnumber        = US"????";
1652 uschar *version_string         = US"?";
1653
1654 uschar *warn_message_file      = NULL;
1655 int     warning_count          = 0;
1656 uschar *warnmsg_delay          = NULL;
1657 uschar *warnmsg_recipients     = NULL;
1658
1659
1660 /*  End of globals.c */