src/src/globals.c

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