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 #ifdef EXPERIMENTAL_QUEUE_RAMP
 744 int     daemon_notifier_fd     = -1;
 745 #endif
 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{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 808             "} {no}{yes}}";
 809 uschar *deliver_address_data   = NULL;
 810 int     deliver_datafile       = -1;
 811 const uschar *deliver_domain   = NULL;
 812 uschar *deliver_domain_data    = NULL;
 813 const uschar *deliver_domain_orig = NULL;
 814 const uschar *deliver_domain_parent = NULL;
 815 time_t  deliver_frozen_at      = 0;
 816 uschar *deliver_home           = NULL;
 817 const uschar *deliver_host     = NULL;
 818 const uschar *deliver_host_address = NULL;
 819 int     deliver_host_port      = 0;
 820 uschar *deliver_in_buffer      = NULL;
 821 ino_t   deliver_inode          = 0;
 822 uschar *deliver_localpart      = NULL;
 823 uschar *deliver_localpart_data = NULL;
 824 uschar *deliver_localpart_orig = NULL;
 825 uschar *deliver_localpart_parent = NULL;
 826 uschar *deliver_localpart_prefix = NULL;
 827 uschar *deliver_localpart_suffix = NULL;
 828 uschar *deliver_localpart_verified = NULL;
 829 uschar *deliver_out_buffer     = NULL;
 830 int     deliver_queue_load_max = -1;
 831 address_item  *deliver_recipients = NULL;
 832 uschar *deliver_selectstring   = NULL;
 833 uschar *deliver_selectstring_sender = NULL;
 834
 835 #ifndef DISABLE_DKIM
 836 unsigned dkim_collect_input      = 0;
 837 uschar *dkim_cur_signer          = NULL;
 838 int     dkim_key_length          = 0;
 839 void   *dkim_signatures          = NULL;
 840 uschar *dkim_signers             = NULL;
 841 uschar *dkim_signing_domain      = NULL;
 842 uschar *dkim_signing_selector    = NULL;
 843 uschar *dkim_verify_hashes       = US"sha256:sha512";
 844 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 845 BOOL    dkim_verify_minimal      = FALSE;
 846 uschar *dkim_verify_overall      = NULL;
 847 uschar *dkim_verify_signers      = US"$dkim_signers";
 848 uschar *dkim_verify_status       = NULL;
 849 uschar *dkim_verify_reason       = NULL;
 850 #endif
 851 #ifdef SUPPORT_DMARC
 852 uschar *dmarc_domain_policy     = NULL;
 853 uschar *dmarc_forensic_sender   = NULL;
 854 uschar *dmarc_history_file      = NULL;
 855 uschar *dmarc_status            = NULL;
 856 uschar *dmarc_status_text       = NULL;
 857 uschar *dmarc_tld_file          = NULL;
 858 uschar *dmarc_used_domain       = NULL;
 859 #endif
 860
 861 uschar *dns_again_means_nonexist = NULL;
 862 int     dns_csa_search_limit   = 5;
 863 int     dns_cname_loops        = 1;
 864 #ifdef SUPPORT_DANE
 865 int     dns_dane_ok            = -1;
 866 #endif
 867 uschar *dns_ipv4_lookup        = NULL;
 868 int     dns_retrans            = 0;
 869 int     dns_retry              = 0;
 870 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 871 uschar *dns_trust_aa           = NULL;
 872 int     dns_use_edns0          = -1; /* <0 = not coerced */
 873 uschar *dnslist_domain         = NULL;
 874 uschar *dnslist_matched        = NULL;
 875 uschar *dnslist_text           = NULL;
 876 uschar *dnslist_value          = NULL;
 877 tree_node *domainlist_anchor   = NULL;
 878 int     domainlist_count       = 0;
 879 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 880
 881 int     errno_quota            = ERRNO_QUOTA;
 882 uschar *errors_copy            = NULL;
 883 int     error_handling         = ERRORS_SENDER;
 884 uschar *errors_reply_to        = NULL;
 885 int     errors_sender_rc       = EXIT_FAILURE;
 886 #ifndef DISABLE_EVENT
 887 uschar *event_action             = NULL;        /* expansion for delivery events */
 888 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 889 int     event_defer_errno        = 0;
 890 const uschar *event_name         = NULL;        /* event name variable */
 891 #endif
 892
 893
 894 gid_t   exim_gid               = EXIM_GID;
 895 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 896                         "\0<---------------Space to patch exim_path->";
 897 uid_t   exim_uid               = EXIM_UID;
 898 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 899 int     expand_forbid          = 0;
 900 int     expand_nlength[EXPAND_MAXN+1];
 901 int     expand_nmax            = -1;
 902 uschar *expand_nstring[EXPAND_MAXN+1];
 903 uschar *expand_string_message;
 904 uschar *extra_local_interfaces = NULL;
 905
 906 int     fake_response          = OK;
 907 uschar *fake_response_text     = US"Your message has been rejected but is "
 908                                    "being kept for evaluation.\nIf it was a "
 909                                    "legitimate message, it may still be "
 910                                    "delivered to the target recipient(s).";
 911 int     filter_n[FILTER_VARIABLE_COUNT];
 912 int     filter_sn[FILTER_VARIABLE_COUNT];
 913 int     filter_test            = FTEST_NONE;
 914 uschar *filter_test_sfile      = NULL;
 915 uschar *filter_test_ufile      = NULL;
 916 uschar *filter_thisaddress     = NULL;
 917 int     finduser_retries       = 0;
 918 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 919 uschar *freeze_tell            = NULL;
 920 uschar *freeze_tell_config     = NULL;
 921 uschar *fudged_queue_times     = US"";
 922
 923 uschar *gecos_name             = NULL;
 924 uschar *gecos_pattern          = NULL;
 925 rewrite_rule  *global_rewrite_rules = NULL;
 926
 927 volatile sig_atomic_t had_command_timeout = 0;
 928 volatile sig_atomic_t had_command_sigterm = 0;
 929 volatile sig_atomic_t had_data_timeout    = 0;
 930 volatile sig_atomic_t had_data_sigint     = 0;
 931 uschar *headers_charset        = US HEADERS_CHARSET;
 932 int     header_insert_maxlen   = 64 * 1024;
 933 header_line  *header_last      = NULL;
 934 header_line  *header_list      = NULL;
 935 int     header_maxsize         = HEADER_MAXSIZE;
 936 int     header_line_maxsize    = 0;
 937
 938 header_name header_names[] = {
 939   /* name               len     allow_resent    htype */
 940   { US"bcc",            3,      TRUE,           htype_bcc },
 941   { US"cc",             2,      TRUE,           htype_cc },
 942   { US"date",           4,      TRUE,           htype_date },
 943   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 944   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 945   { US"from",           4,      TRUE,           htype_from },
 946   { US"message-id",    10,      TRUE,           htype_id },
 947   { US"received",       8,      FALSE,          htype_received },
 948   { US"reply-to",       8,      FALSE,          htype_reply_to },
 949   { US"return-path",   11,      FALSE,          htype_return_path },
 950   { US"sender",         6,      TRUE,           htype_sender },
 951   { US"subject",        7,      FALSE,          htype_subject },
 952   { US"to",             2,      TRUE,           htype_to }
 953 };
 954
 955 int header_names_size          = nelem(header_names);
 956
 957 uschar *helo_accept_junk_hosts = NULL;
 958 uschar *helo_allow_chars       = US"";
 959 uschar *helo_lookup_domains    = US"@ : @[]";
 960 uschar *helo_try_verify_hosts  = NULL;
 961 uschar *helo_verify_hosts      = NULL;
 962 const uschar *hex_digits       = CUS"0123456789abcdef";
 963 uschar *hold_domains           = NULL;
 964 uschar *host_data              = NULL;
 965 uschar *host_lookup            = NULL;
 966 uschar *host_lookup_order      = US"bydns:byaddr";
 967 uschar *host_lookup_msg        = US"";
 968 int     host_number            = 0;
 969 uschar *host_number_string     = NULL;
 970 uschar *host_reject_connection = NULL;
 971 tree_node *hostlist_anchor     = NULL;
 972 int     hostlist_count         = 0;
 973 uschar *hosts_treat_as_local   = NULL;
 974 uschar *hosts_connection_nolog = NULL;
 975
 976 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 977 uschar *ignore_fromline_hosts  = NULL;
 978 int     inetd_wait_timeout     = -1;
 979 uschar *initial_cwd            = NULL;
 980 uschar *interface_address      = NULL;
 981 int     interface_port         = -1;
 982 uschar *iterate_item           = NULL;
 983
 984 int     journal_fd             = -1;
 985
 986 uschar *keep_environment       = NULL;
 987
 988 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 989
 990 uschar *eldap_dn               = NULL;
 991 int     load_average           = -2;
 992 uschar *local_from_prefix      = NULL;
 993 uschar *local_from_suffix      = NULL;
 994
 995 #if HAVE_IPV6
 996 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 997 #else
 998 uschar *local_interfaces       = US"0.0.0.0";
 999 #endif
1000
1001 #ifdef HAVE_LOCAL_SCAN
1002 uschar *local_scan_data        = NULL;
1003 int     local_scan_timeout     = 5*60;
1004 #endif
1005 gid_t   local_user_gid         = (gid_t)(-1);
1006 uid_t   local_user_uid         = (uid_t)(-1);
1007
1008 tree_node *localpartlist_anchor= NULL;
1009 int     localpartlist_count    = 0;
1010 uschar *log_buffer             = NULL;
1011
1012 int     log_default[]          = { /* for initializing log_selector */
1013   Li_acl_warn_skipped,
1014   Li_connection_reject,
1015   Li_delay_delivery,
1016   Li_dkim,
1017   Li_dnslist_defer,
1018   Li_etrn,
1019   Li_host_lookup_failed,
1020   Li_lost_incoming_connection,
1021   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1022   Li_msg_id,
1023   Li_queue_run,
1024   Li_rejected_header,
1025   Li_retry_defer,
1026   Li_sender_verify_fail,
1027   Li_size_reject,
1028   Li_skip_delivery,
1029   Li_smtp_confirmation,
1030   Li_tls_certificate_verified,
1031   Li_tls_cipher,
1032   -1
1033 };
1034
1035 uschar *log_file_path          = US LOG_FILE_PATH
1036                            "\0<--------------Space to patch log_file_path->";
1037
1038 int     log_notall[]           = {
1039   -1
1040 };
1041 bit_table log_options[]        = { /* must be in alphabetical order,
1042                                 with definitions from enum logbit. */
1043   BIT_TABLE(L, 8bitmime),
1044   BIT_TABLE(L, acl_warn_skipped),
1045   BIT_TABLE(L, address_rewrite),
1046   BIT_TABLE(L, all),
1047   BIT_TABLE(L, all_parents),
1048   BIT_TABLE(L, arguments),
1049   BIT_TABLE(L, connection_reject),
1050   BIT_TABLE(L, delay_delivery),
1051   BIT_TABLE(L, deliver_time),
1052   BIT_TABLE(L, delivery_size),
1053 #ifndef DISABLE_DKIM
1054   BIT_TABLE(L, dkim),
1055   BIT_TABLE(L, dkim_verbose),
1056 #endif
1057   BIT_TABLE(L, dnslist_defer),
1058   BIT_TABLE(L, dnssec),
1059   BIT_TABLE(L, etrn),
1060   BIT_TABLE(L, host_lookup_failed),
1061   BIT_TABLE(L, ident_timeout),
1062   BIT_TABLE(L, incoming_interface),
1063   BIT_TABLE(L, incoming_port),
1064   BIT_TABLE(L, lost_incoming_connection),
1065   BIT_TABLE(L, millisec),
1066   BIT_TABLE(L, msg_id),
1067   BIT_TABLE(L, msg_id_created),
1068   BIT_TABLE(L, outgoing_interface),
1069   BIT_TABLE(L, outgoing_port),
1070   BIT_TABLE(L, pid),
1071   BIT_TABLE(L, pipelining),
1072 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1073   BIT_TABLE(L, proxy),
1074 #endif
1075   BIT_TABLE(L, queue_run),
1076   BIT_TABLE(L, queue_time),
1077   BIT_TABLE(L, queue_time_overall),
1078   BIT_TABLE(L, receive_time),
1079   BIT_TABLE(L, received_recipients),
1080   BIT_TABLE(L, received_sender),
1081   BIT_TABLE(L, rejected_header),
1082   { US"rejected_headers", Li_rejected_header },
1083   BIT_TABLE(L, retry_defer),
1084   BIT_TABLE(L, return_path_on_delivery),
1085   BIT_TABLE(L, sender_on_delivery),
1086   BIT_TABLE(L, sender_verify_fail),
1087   BIT_TABLE(L, size_reject),
1088   BIT_TABLE(L, skip_delivery),
1089   BIT_TABLE(L, smtp_confirmation),
1090   BIT_TABLE(L, smtp_connection),
1091   BIT_TABLE(L, smtp_incomplete_transaction),
1092   BIT_TABLE(L, smtp_mailauth),
1093   BIT_TABLE(L, smtp_no_mail),
1094   BIT_TABLE(L, smtp_protocol_error),
1095   BIT_TABLE(L, smtp_syntax_error),
1096   BIT_TABLE(L, subject),
1097   BIT_TABLE(L, tls_certificate_verified),
1098   BIT_TABLE(L, tls_cipher),
1099   BIT_TABLE(L, tls_peerdn),
1100   BIT_TABLE(L, tls_resumption),
1101   BIT_TABLE(L, tls_sni),
1102   BIT_TABLE(L, unknown_in_list),
1103 };
1104 int     log_options_count      = nelem(log_options);
1105
1106 int     log_reject_target      = 0;
1107 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1108 uschar *log_selector_string    = NULL;
1109 FILE   *log_stderr             = NULL;
1110 uschar *login_sender_address   = NULL;
1111 uschar *lookup_dnssec_authenticated = NULL;
1112 int     lookup_open_max        = 25;
1113 uschar *lookup_value           = NULL;
1114
1115 macro_item *macros_user        = NULL;
1116 uschar *mailstore_basename     = NULL;
1117 #ifdef WITH_CONTENT_SCAN
1118 uschar *malware_name           = NULL;  /* Virus Name */
1119 #endif
1120 int     max_received_linelength= 0;
1121 int     max_username_length    = 0;
1122 int     message_age            = 0;
1123 uschar *message_body           = NULL;
1124 uschar *message_body_end       = NULL;
1125 int     message_body_size      = 0;
1126 int     message_body_visible   = 500;
1127 int     message_ended          = END_NOTSTARTED;
1128 uschar *message_headers        = NULL;
1129 uschar *message_id;
1130 uschar *message_id_domain      = NULL;
1131 uschar *message_id_text        = NULL;
1132 struct timeval message_id_tv   = { 0, 0 };
1133 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1134 uschar *message_id_external;
1135 int     message_linecount      = 0;
1136 int     message_size           = 0;
1137 uschar *message_size_limit     = US"50M";
1138 #ifdef SUPPORT_I18N
1139 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1140 #endif
1141 uschar  message_subdir[2]      = { 0, 0 };
1142 uschar *message_reference      = NULL;
1143
1144 /* MIME ACL expandables */
1145 #ifdef WITH_CONTENT_SCAN
1146 int     mime_anomaly_level     = 0;
1147 const uschar *mime_anomaly_text      = NULL;
1148 uschar *mime_boundary          = NULL;
1149 uschar *mime_charset           = NULL;
1150 uschar *mime_content_description = NULL;
1151 uschar *mime_content_disposition = NULL;
1152 uschar *mime_content_id        = NULL;
1153 unsigned int mime_content_size = 0;
1154 uschar *mime_content_transfer_encoding = NULL;
1155 uschar *mime_content_type      = NULL;
1156 uschar *mime_decoded_filename  = NULL;
1157 uschar *mime_filename          = NULL;
1158 int     mime_is_multipart      = 0;
1159 int     mime_is_coverletter    = 0;
1160 int     mime_is_rfc822         = 0;
1161 int     mime_part_count        = -1;
1162 #endif
1163
1164 uid_t  *never_users            = NULL;
1165
1166 const int on                   = 1;     /* for setsockopt */
1167 const int off                  = 0;
1168
1169 uid_t   original_euid;
1170 gid_t   originator_gid;
1171 uschar *originator_login       = NULL;
1172 uschar *originator_name        = NULL;
1173 uid_t   originator_uid;
1174 uschar *override_local_interfaces = NULL;
1175 uschar *override_pid_file_path = NULL;
1176
1177 uschar *percent_hack_domains   = NULL;
1178 uschar *pid_file_path          = US PID_FILE_PATH
1179                            "\0<--------------Space to patch pid_file_path->";
1180 #ifndef DISABLE_PIPE_CONNECT
1181 uschar *pipe_connect_advertise_hosts = US"*";
1182 #endif
1183 uschar *pipelining_advertise_hosts = US"*";
1184 uschar *primary_hostname       = NULL;
1185 uschar *process_info;
1186 int     process_info_len       = 0;
1187 uschar *process_log_path       = NULL;
1188
1189 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1190 uschar *hosts_proxy            = NULL;
1191 uschar *proxy_external_address = NULL;
1192 int     proxy_external_port    = 0;
1193 uschar *proxy_local_address    = NULL;
1194 int     proxy_local_port       = 0;
1195 #endif
1196
1197 uschar *prvscheck_address      = NULL;
1198 uschar *prvscheck_keynum       = NULL;
1199 uschar *prvscheck_result       = NULL;
1200
1201
1202 const uschar *qualify_domain_recipient = NULL;
1203 uschar *qualify_domain_sender  = NULL;
1204 uschar *queue_domains          = NULL;
1205 int     queue_interval         = -1;
1206 uschar *queue_name             = US"";
1207 uschar *queue_name_dest        = NULL;
1208 uschar *queue_only_file        = NULL;
1209 int     queue_only_load        = -1;
1210 uschar *queue_run_max          = US"5";
1211 pid_t   queue_run_pid          = (pid_t)0;
1212 int     queue_run_pipe         = -1;
1213 uschar *queue_smtp_domains     = NULL;
1214
1215 uint32_t random_seed           = 0;
1216 tree_node *ratelimiters_cmd    = NULL;
1217 tree_node *ratelimiters_conn   = NULL;
1218 tree_node *ratelimiters_mail   = NULL;
1219 uschar *raw_active_hostname    = NULL;
1220 uschar *raw_sender             = NULL;
1221 uschar **raw_recipients        = NULL;
1222 int     raw_recipients_count   = 0;
1223
1224 int     rcpt_count             = 0;
1225 int     rcpt_fail_count        = 0;
1226 int     rcpt_defer_count       = 0;
1227 gid_t   real_gid;
1228 uid_t   real_uid;
1229 int     receive_linecount      = 0;
1230 int     receive_messagecount   = 0;
1231 int     receive_timeout        = 0;
1232 int     received_count         = 0;
1233 uschar *received_for           = NULL;
1234
1235 /*  This is the default text for Received headers generated by Exim. The
1236 date  will be automatically added on the end. */
1237
1238 uschar *received_header_text   = US
1239      "Received: "
1240      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1241        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1242          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1243      "by $primary_hostname "
1244      "${if def:received_protocol {with $received_protocol }}"
1245 #ifndef DISABLE_TLS
1246      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1247      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1248 #endif
1249      "(Exim $version_number)\n\t"
1250      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1251      "id $message_exim_id"
1252      "${if def:received_for {\n\tfor $received_for}}"
1253      "\0<---------------Space to patch received_header_text->";
1254
1255 int     received_headers_max   = 30;
1256 uschar *received_protocol      = NULL;
1257 struct timeval received_time   = { 0, 0 };
1258 struct timeval received_time_taken = { 0, 0 };
1259 uschar *recipient_data         = NULL;
1260 uschar *recipient_unqualified_hosts = NULL;
1261 uschar *recipient_verify_failure = NULL;
1262 int     recipients_count       = 0;
1263 recipient_item  *recipients_list = NULL;
1264 int     recipients_list_max    = 0;
1265 int     recipients_max         = 0;
1266 const pcre *regex_AUTH         = NULL;
1267 const pcre *regex_check_dns_names = NULL;
1268 const pcre *regex_From         = NULL;
1269 const pcre *regex_IGNOREQUOTA  = NULL;
1270 const pcre *regex_PIPELINING   = NULL;
1271 const pcre *regex_SIZE         = NULL;
1272 #ifndef DISABLE_PIPE_CONNECT
1273 const pcre *regex_EARLY_PIPE   = NULL;
1274 #endif
1275 const pcre *regex_ismsgid      = NULL;
1276 const pcre *regex_smtp_code    = NULL;
1277 uschar *regex_vars[REGEX_VARS];
1278 #ifdef WHITELIST_D_MACROS
1279 const pcre *regex_whitelisted_macro = NULL;
1280 #endif
1281 #ifdef WITH_CONTENT_SCAN
1282 uschar *regex_match_string     = NULL;
1283 #endif
1284 int     remote_delivery_count  = 0;
1285 int     remote_max_parallel    = 2;
1286 uschar *remote_sort_domains    = NULL;
1287 int     retry_data_expire      = 7*24*60*60;
1288 int     retry_interval_max     = 24*60*60;
1289 int     retry_maximum_timeout  = 0;        /* set from retry config */
1290 retry_config  *retries         = NULL;
1291 uschar *return_path            = NULL;
1292 int     rewrite_existflags     = 0;
1293 uschar *rfc1413_hosts          = US"@[]";
1294 int     rfc1413_query_timeout  = 0;
1295 uid_t   root_gid               = ROOT_GID;
1296 uid_t   root_uid               = ROOT_UID;
1297
1298 router_instance  *routers  = NULL;
1299 router_instance  router_defaults = {
1300     .next =                     NULL,
1301     .name =                     NULL,
1302     .info =                     NULL,
1303     .options_block =            NULL,
1304     .driver_name =              NULL,
1305
1306     .address_data =             NULL,
1307 #ifdef EXPERIMENTAL_BRIGHTMAIL
1308     .bmi_rule =                 NULL,
1309 #endif
1310     .cannot_route_message =     NULL,
1311     .condition =                NULL,
1312     .current_directory =        NULL,
1313     .debug_string =             NULL,
1314     .domains =                  NULL,
1315     .errors_to =                NULL,
1316     .expand_gid =               NULL,
1317     .expand_uid =               NULL,
1318     .expand_more =              NULL,
1319     .expand_unseen =            NULL,
1320     .extra_headers =            NULL,
1321     .fallback_hosts =           NULL,
1322     .home_directory =           NULL,
1323     .ignore_target_hosts =      NULL,
1324     .local_parts =              NULL,
1325     .pass_router_name =         NULL,
1326     .prefix =                   NULL,
1327     .redirect_router_name =     NULL,
1328     .remove_headers =           NULL,
1329     .require_files =            NULL,
1330     .router_home_directory =    NULL,
1331     .self =                     US"freeze",
1332     .senders =                  NULL,
1333     .suffix =                   NULL,
1334     .translate_ip_address =     NULL,
1335     .transport_name =           NULL,
1336
1337     .address_test =             TRUE,
1338 #ifdef EXPERIMENTAL_BRIGHTMAIL
1339     .bmi_deliver_alternate =    FALSE,
1340     .bmi_deliver_default =      FALSE,
1341     .bmi_dont_deliver =         FALSE,
1342 #endif
1343     .expn =                     TRUE,
1344     .caseful_local_part =       FALSE,
1345     .check_local_user =         FALSE,
1346     .disable_logging =          FALSE,
1347     .fail_verify_recipient =    FALSE,
1348     .fail_verify_sender =       FALSE,
1349     .gid_set =                  FALSE,
1350     .initgroups =               FALSE,
1351     .log_as_local =             TRUE_UNSET,
1352     .more =                     TRUE,
1353     .pass_on_timeout =          FALSE,
1354     .prefix_optional =          FALSE,
1355     .repeat_use =               TRUE,
1356     .retry_use_local_part =     TRUE_UNSET,
1357     .same_domain_copy_routing = FALSE,
1358     .self_rewrite =             FALSE,
1359     .set =                      NULL,
1360     .suffix_optional =          FALSE,
1361     .verify_only =              FALSE,
1362     .verify_recipient =         TRUE,
1363     .verify_sender =            TRUE,
1364     .uid_set =                  FALSE,
1365     .unseen =                   FALSE,
1366     .dsn_lasthop =              FALSE,
1367
1368     .self_code =                self_freeze,
1369     .uid =                      (uid_t)(-1),
1370     .gid =                      (gid_t)(-1),
1371
1372     .fallback_hostlist =        NULL,
1373     .transport =                NULL,
1374     .pass_router =              NULL,
1375     .redirect_router =          NULL,
1376
1377     .dnssec =                   { .request= US"*", .require=NULL },
1378 };
1379
1380 uschar *router_name            = NULL;
1381 tree_node *router_var          = NULL;
1382
1383 ip_address_item *running_interfaces = NULL;
1384
1385 /* This is a weird one. The following string gets patched in the binary by the
1386 script that sets up a copy of Exim for running in the test harness. It seems
1387 that compilers are now clever, and share constant strings if they can.
1388 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1389 make use of the end of this string in order to save space. So the patching then
1390 wrecks this. We defeat this optimization by adding some additional characters
1391 onto the end of the string. */
1392
1393 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1394
1395 int     runrc                  = 0;
1396
1397 uschar *search_error_message   = NULL;
1398 uschar *self_hostname          = NULL;
1399 uschar *sender_address         = NULL;
1400 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1401 uschar *sender_address_data    = NULL;
1402 uschar *sender_address_unrewritten = NULL;
1403 uschar *sender_data            = NULL;
1404 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1405 uschar *sender_fullhost        = NULL;
1406 uschar *sender_helo_name       = NULL;
1407 uschar **sender_host_aliases   = &no_aliases;
1408 uschar *sender_host_address    = NULL;
1409 uschar *sender_host_authenticated = NULL;
1410 uschar *sender_host_auth_pubname  = NULL;
1411 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1412 uschar *sender_host_name       = NULL;
1413 int     sender_host_port       = 0;
1414 uschar *sender_ident           = NULL;
1415 uschar *sender_rate            = NULL;
1416 uschar *sender_rate_limit      = NULL;
1417 uschar *sender_rate_period     = NULL;
1418 uschar *sender_rcvhost         = NULL;
1419 uschar *sender_unqualified_hosts = NULL;
1420 uschar *sender_verify_failure = NULL;
1421 address_item *sender_verified_list  = NULL;
1422 address_item *sender_verified_failed = NULL;
1423 int     sender_verified_rc     = -1;
1424 uschar *sending_ip_address     = NULL;
1425 int     sending_port           = -1;
1426 SIGNAL_BOOL sigalrm_seen       = FALSE;
1427 const uschar *sigalarm_setter  = NULL;
1428 uschar **sighup_argv           = NULL;
1429 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1430 int     smtp_accept_count      = 0;
1431 int     smtp_accept_max        = 20;
1432 int     smtp_accept_max_nonmail= 10;
1433 uschar *smtp_accept_max_nonmail_hosts = US"*";
1434 int     smtp_accept_max_per_connection = 1000;
1435 uschar *smtp_accept_max_per_host = NULL;
1436 int     smtp_accept_queue      = 0;
1437 int     smtp_accept_queue_per_connection = 10;
1438 int     smtp_accept_reserve    = 0;
1439 uschar *smtp_active_hostname   = NULL;
1440 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1441                              "Exim $version_number $tod_full"
1442                              "\0<---------------Space to patch smtp_banner->";
1443 int     smtp_ch_index          = 0;
1444 uschar *smtp_cmd_argument      = NULL;
1445 uschar *smtp_cmd_buffer        = NULL;
1446 struct timeval smtp_connection_start  = {0,0};
1447 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1448 int     smtp_connect_backlog   = 20;
1449 double  smtp_delay_mail        = 0.0;
1450 double  smtp_delay_rcpt        = 0.0;
1451 FILE   *smtp_in                = NULL;
1452 int     smtp_load_reserve      = -1;
1453 int     smtp_mailcmd_count     = 0;
1454 FILE   *smtp_out               = NULL;
1455 uschar *smtp_etrn_command      = NULL;
1456 int     smtp_max_synprot_errors= 3;
1457 int     smtp_max_unknown_commands = 3;
1458 uschar *smtp_notquit_reason    = NULL;
1459 uschar *smtp_ratelimit_hosts   = NULL;
1460 uschar *smtp_ratelimit_mail    = NULL;
1461 uschar *smtp_ratelimit_rcpt    = NULL;
1462 uschar *smtp_read_error        = US"";
1463 int     smtp_receive_timeout   = 5*60;
1464 uschar *smtp_receive_timeout_s = NULL;
1465 uschar *smtp_reserve_hosts     = NULL;
1466 int     smtp_rlm_base          = 0;
1467 double  smtp_rlm_factor        = 0.0;
1468 int     smtp_rlm_limit         = 0;
1469 int     smtp_rlm_threshold     = INT_MAX;
1470 int     smtp_rlr_base          = 0;
1471 double  smtp_rlr_factor        = 0.0;
1472 int     smtp_rlr_limit         = 0;
1473 int     smtp_rlr_threshold     = INT_MAX;
1474 unsigned smtp_peer_options     = 0;
1475 unsigned smtp_peer_options_wrap= 0;
1476 #ifdef SUPPORT_I18N
1477 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1478 #endif
1479
1480 #ifdef WITH_CONTENT_SCAN
1481 uschar *spamd_address          = US"127.0.0.1 783";
1482 uschar *spam_bar               = NULL;
1483 uschar *spam_report            = NULL;
1484 uschar *spam_action            = NULL;
1485 uschar *spam_score             = NULL;
1486 uschar *spam_score_int         = NULL;
1487 #endif
1488 #ifdef SUPPORT_SPF
1489 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1490 uschar *spf_header_comment     = NULL;
1491 uschar *spf_received           = NULL;
1492 uschar *spf_result             = NULL;
1493 uschar *spf_smtp_comment       = NULL;
1494 #endif
1495
1496 FILE   *spool_data_file        = NULL;
1497 uschar *spool_directory        = US SPOOL_DIRECTORY
1498                            "\0<--------------Space to patch spool_directory->";
1499 #ifdef EXPERIMENTAL_SRS
1500 uschar *srs_config             = NULL;
1501 uschar *srs_db_address         = NULL;
1502 uschar *srs_db_key             = NULL;
1503 int     srs_hashlength         = 6;
1504 int     srs_hashmin            = -1;
1505 int     srs_maxage             = 31;
1506 uschar *srs_orig_recipient     = NULL;
1507 uschar *srs_orig_sender        = NULL;
1508 uschar *srs_recipient          = NULL;
1509 uschar *srs_secrets            = NULL;
1510 uschar *srs_status             = NULL;
1511 #endif
1512 #ifdef EXPERIMENTAL_SRS_NATIVE
1513 uschar *srs_recipient          = NULL;
1514 #endif
1515 int     string_datestamp_offset= -1;
1516 int     string_datestamp_length= 0;
1517 int     string_datestamp_type  = -1;
1518 uschar *submission_domain      = NULL;
1519 uschar *submission_name        = NULL;
1520 int     syslog_facility        = LOG_MAIL;
1521 uschar *syslog_processname     = US"exim";
1522 uschar *system_filter          = NULL;
1523
1524 uschar *system_filter_directory_transport = NULL;
1525 uschar *system_filter_file_transport = NULL;
1526 uschar *system_filter_pipe_transport = NULL;
1527 uschar *system_filter_reply_transport = NULL;
1528
1529 gid_t   system_filter_gid      = 0;
1530 uid_t   system_filter_uid      = (uid_t)-1;
1531
1532 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1533 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1534 #ifdef USE_TCP_WRAPPERS
1535 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1536 #endif
1537 int     test_harness_load_avg  = 0;
1538 int     thismessage_size_limit = 0;
1539 int     timeout_frozen_after   = 0;
1540 #ifdef MEASURE_TIMING
1541 struct timeval timestamp_startup;
1542 #endif
1543
1544 transport_instance  *transports = NULL;
1545
1546 transport_instance  transport_defaults = {
1547     .next =                     NULL,
1548     .name =                     NULL,
1549     .info =                     NULL,
1550     .options_block =            NULL,
1551     .driver_name =              NULL,
1552     .setup =                    NULL,
1553     .batch_max =                1,
1554     .batch_id =                 NULL,
1555     .home_dir =                 NULL,
1556     .current_dir =              NULL,
1557     .expand_multi_domain =      NULL,
1558     .multi_domain =             TRUE,
1559     .overrides_hosts =          FALSE,
1560     .max_addresses =            100,
1561     .connection_max_messages =  500,
1562     .deliver_as_creator =       FALSE,
1563     .disable_logging =          FALSE,
1564     .initgroups =               FALSE,
1565     .uid_set =                  FALSE,
1566     .gid_set =                  FALSE,
1567     .uid =                      (uid_t)(-1),
1568     .gid =                      (gid_t)(-1),
1569     .expand_uid =               NULL,
1570     .expand_gid =               NULL,
1571     .warn_message =             NULL,
1572     .shadow =                   NULL,
1573     .shadow_condition =         NULL,
1574     .filter_command =           NULL,
1575     .add_headers =              NULL,
1576     .remove_headers =           NULL,
1577     .return_path =              NULL,
1578     .debug_string =             NULL,
1579     .max_parallel =             NULL,
1580     .message_size_limit =       NULL,
1581     .headers_rewrite =          NULL,
1582     .rewrite_rules =            NULL,
1583     .rewrite_existflags =       0,
1584     .filter_timeout =           300,
1585     .body_only =                FALSE,
1586     .delivery_date_add =        FALSE,
1587     .envelope_to_add =          FALSE,
1588     .headers_only =             FALSE,
1589     .rcpt_include_affixes =     FALSE,
1590     .return_path_add =          FALSE,
1591     .return_output =            FALSE,
1592     .return_fail_output =       FALSE,
1593     .log_output =               FALSE,
1594     .log_fail_output =          FALSE,
1595     .log_defer_output =         FALSE,
1596     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1597                                                  1 nor 0 so can detect unset */
1598 #ifndef DISABLE_EVENT
1599    .event_action =              NULL
1600 #endif
1601 };
1602
1603 int     transport_count;
1604 uschar *transport_name          = NULL;
1605 int     transport_newlines;
1606 const uschar **transport_filter_argv  = NULL;
1607 int     transport_filter_timeout;
1608 int     transport_write_timeout= 0;
1609
1610 tree_node  *tree_dns_fails     = NULL;
1611 tree_node  *tree_duplicates    = NULL;
1612 tree_node  *tree_nonrecipients = NULL;
1613 tree_node  *tree_unusable      = NULL;
1614
1615 gid_t  *trusted_groups         = NULL;
1616 uid_t  *trusted_users          = NULL;
1617 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1618
1619 uschar *unknown_login          = NULL;
1620 uschar *unknown_username       = NULL;
1621 uschar *untrusted_set_sender   = NULL;
1622
1623 /*  A regex for matching a "From_" line in an incoming message, in the form
1624
1625     From ph10 Fri Jan  5 12:35 GMT 1996
1626
1627 which  the "mail" commands send to the MTA (undocumented, of course), or in
1628 the  form
1629
1630     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1631
1632 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1633 Because  of variations in time formats, just match up to the minutes. That
1634 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1635 so  just require one digit for hours and minutes. The weekday is also absent
1636 in  some forms. */
1637
1638 uschar *uucp_from_pattern      = US
1639    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1640    "(?:"                                          /* Non-extracting bracket */
1641    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1642    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1643    ")"                                            /* End alternation */
1644    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1645
1646 uschar *uucp_from_sender       = US"$1";
1647
1648 uschar *verify_mode            = NULL;
1649 uschar *version_copyright      =
1650  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1651    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2018";
1652 uschar *version_date           = US"?";
1653 uschar *version_cnumber        = US"????";
1654 uschar *version_string         = US"?";
1655
1656 uschar *warn_message_file      = NULL;
1657 int     warning_count          = 0;
1658 uschar *warnmsg_delay          = NULL;
1659 uschar *warnmsg_recipients     = NULL;
1660
1661
1662 /*  End of globals.c */