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 - 2021 */
   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 pcre2_code  *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 *hosts_require_alpn     = NULL;
 124 uschar *openssl_options        = NULL;
 125 const pcre2_code *regex_STARTTLS     = NULL;
 126 uschar *tls_advertise_hosts    = US"*";
 127 uschar *tls_alpn               = US"smtp:esmtp";
 128 uschar *tls_certificate        = NULL;
 129 uschar *tls_crl                = NULL;
 130 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 131 that's the interop problem which has been observed: GnuTLS suggesting a higher
 132 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 133 int     tls_dh_max_bits        = 2236;
 134 uschar *tls_dhparam            = NULL;
 135 uschar *tls_eccurve            = US"auto";
 136 # ifndef DISABLE_OCSP
 137 uschar *tls_ocsp_file          = NULL;
 138 # endif
 139 uschar *tls_privatekey         = NULL;
 140 BOOL    tls_remember_esmtp     = FALSE;
 141 uschar *tls_require_ciphers    = NULL;
 142 # ifndef DISABLE_TLS_RESUME
 143 uschar *tls_resumption_hosts   = NULL;
 144 # endif
 145 uschar *tls_try_verify_hosts   = NULL;
 146 uschar *tls_verify_certificates= US"system";
 147 uschar *tls_verify_hosts       = NULL;
 148 int     tls_watch_fd           = -1;
 149 time_t  tls_watch_trigger_time = (time_t)0;
 150 #else   /*DISABLE_TLS*/
 151 uschar *tls_advertise_hosts    = NULL;
 152 #endif
 153
 154 #ifndef DISABLE_PRDR
 155 /* Per Recipient Data Response variables */
 156 BOOL    prdr_enable            = FALSE;
 157 BOOL    prdr_requested         = FALSE;
 158 const pcre2_code *regex_PRDR         = NULL;
 159 #endif
 160
 161 #ifdef SUPPORT_I18N
 162 const pcre2_code *regex_UTF8         = NULL;
 163 #endif
 164
 165 /* Input-reading functions for messages, so we can use special ones for
 166 incoming TCP/IP. The defaults use stdin. We never need these for any
 167 stand-alone tests. */
 168
 169 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 170 int     (*lwr_receive_getc)(unsigned)   = stdin_getc;
 171 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 172 int     (*lwr_receive_ungetc)(int)      = stdin_ungetc;
 173 BOOL    (*lwr_receive_hasc)(void)       = stdin_hasc;
 174
 175 int     (*receive_getc)(unsigned)       = stdin_getc;
 176 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 177 void    (*receive_get_cache)(unsigned)  = NULL;
 178 BOOL    (*receive_hasc)(void)           = stdin_hasc;
 179 int     (*receive_ungetc)(int)          = stdin_ungetc;
 180 int     (*receive_feof)(void)           = stdin_feof;
 181 int     (*receive_ferror)(void)         = stdin_ferror;
 182 #endif
 183
 184
 185 /* List of per-address expansion variables for clearing and saving/restoring
 186 when verifying one address while routing/verifying another. We have to have
 187 the size explicit, because it is referenced from more than one module. */
 188
 189 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 190   CUSS &deliver_address_data,
 191   CUSS &deliver_domain,
 192   CUSS &deliver_domain_data,
 193   CUSS &deliver_domain_orig,
 194   CUSS &deliver_domain_parent,
 195   CUSS &deliver_localpart,
 196   CUSS &deliver_localpart_data,
 197   CUSS &deliver_localpart_orig,
 198   CUSS &deliver_localpart_parent,
 199   CUSS &deliver_localpart_prefix,
 200   CUSS &deliver_localpart_suffix,
 201   CUSS (uschar **)(&deliver_recipients),
 202   CUSS &deliver_host,
 203   CUSS &deliver_home,
 204   CUSS &address_file,
 205   CUSS &address_pipe,
 206   CUSS &self_hostname,
 207   NULL };
 208
 209 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 210
 211 /******************************************************************************/
 212 /* General global variables.  Boolean flags are done as a group
 213 so that only one bit each is needed, packed, for all those we never
 214 need to take a pointer - and only a char for the rest.
 215 This means a struct, unfortunately since it clutters the sourcecode. */
 216
 217 struct global_flags f =
 218 {
 219         .acl_temp_details       = FALSE,
 220         .active_local_from_check = FALSE,
 221         .active_local_sender_retain = FALSE,
 222         .address_test_mode      = FALSE,
 223         .admin_user             = FALSE,
 224         .allow_auth_unadvertised= FALSE,
 225         .allow_unqualified_recipient = TRUE,    /* For local messages */
 226         .allow_unqualified_sender = TRUE,       /* Reset for SMTP */
 227         .authentication_local   = FALSE,
 228
 229         .background_daemon      = TRUE,
 230         .bdat_readers_wanted    = FALSE,
 231
 232         .chunking_offered       = FALSE,
 233         .config_changed         = FALSE,
 234         .continue_more          = FALSE,
 235
 236         .daemon_listen          = FALSE,
 237         .debug_daemon           = FALSE,
 238         .deliver_firsttime      = FALSE,
 239         .deliver_force          = FALSE,
 240         .deliver_freeze         = FALSE,
 241         .deliver_force_thaw     = FALSE,
 242         .deliver_manual_thaw    = FALSE,
 243         .deliver_selectstring_regex = FALSE,
 244         .deliver_selectstring_sender_regex = FALSE,
 245         .disable_callout_flush  = FALSE,
 246         .disable_delay_flush    = FALSE,
 247         .disable_logging        = FALSE,
 248 #ifndef DISABLE_DKIM
 249         .dkim_disable_verify      = FALSE,
 250         .dkim_init_done           = FALSE,
 251 #endif
 252 #ifdef SUPPORT_DMARC
 253         .dmarc_has_been_checked  = FALSE,
 254         .dmarc_disable_verify    = FALSE,
 255         .dmarc_enable_forensic   = FALSE,
 256 #endif
 257         .dont_deliver           = FALSE,
 258         .dot_ends               = TRUE,
 259
 260         .enable_dollar_recipients = FALSE,
 261         .expand_string_forcedfail = FALSE,
 262
 263         .filter_running         = FALSE,
 264
 265         .header_rewritten       = FALSE,
 266         .helo_verified          = FALSE,
 267         .helo_verify_failed     = FALSE,
 268         .host_checking_callout  = FALSE,
 269         .host_find_failed_syntax= FALSE,
 270
 271         .inetd_wait_mode        = FALSE,
 272         .is_inetd               = FALSE,
 273
 274         .local_error_message    = FALSE,
 275         .log_testing_mode       = FALSE,
 276
 277 #ifdef WITH_CONTENT_SCAN
 278         .no_mbox_unspool        = FALSE,
 279 #endif
 280         .no_multiline_responses = FALSE,
 281
 282         .parse_allow_group      = FALSE,
 283         .parse_found_group      = FALSE,
 284         .pipelining_enable      = TRUE,
 285 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 286         .proxy_session_failed   = FALSE,
 287 #endif
 288
 289         .queue_2stage           = FALSE,
 290         .queue_only_policy      = FALSE,
 291         .queue_run_first_delivery = FALSE,
 292         .queue_run_force        = FALSE,
 293         .queue_run_local        = FALSE,
 294         .queue_running          = FALSE,
 295         .queue_smtp             = FALSE,
 296
 297         .really_exim            = TRUE,
 298         .receive_call_bombout   = FALSE,
 299         .recipients_discarded   = FALSE,
 300         .running_in_test_harness = FALSE,
 301
 302         .search_find_defer      = FALSE,
 303         .sender_address_forced  = FALSE,
 304         .sender_host_notsocket  = FALSE,
 305         .sender_host_unknown    = FALSE,
 306         .sender_local           = FALSE,
 307         .sender_name_forced     = FALSE,
 308         .sender_set_untrusted   = FALSE,
 309         .smtp_authenticated     = FALSE,
 310 #ifndef DISABLE_PIPE_CONNECT
 311         .smtp_in_early_pipe_advertised = FALSE,
 312         .smtp_in_early_pipe_no_auth = FALSE,
 313         .smtp_in_early_pipe_used = FALSE,
 314 #endif
 315         .smtp_in_pipelining_advertised = FALSE,
 316         .smtp_in_pipelining_used = FALSE,
 317         .smtp_in_quit           = FALSE,
 318         .spool_file_wireformat  = FALSE,
 319         .submission_mode        = FALSE,
 320         .suppress_local_fixups  = FALSE,
 321         .suppress_local_fixups_default = FALSE,
 322         .synchronous_delivery   = FALSE,
 323         .system_filtering       = FALSE,
 324
 325         .taint_check_slow       = FALSE,
 326         .testsuite_delays       = TRUE,
 327         .tcp_fastopen_ok        = FALSE,
 328         .tcp_in_fastopen        = FALSE,
 329         .tcp_in_fastopen_data   = FALSE,
 330         .tcp_in_fastopen_logged = FALSE,
 331         .tcp_out_fastopen_logged= FALSE,
 332         .timestamps_utc         = FALSE,
 333         .transport_filter_timed_out = FALSE,
 334         .trusted_caller         = FALSE,
 335         .trusted_config         = TRUE,
 336 };
 337
 338 /******************************************************************************/
 339 /* These are the flags which are either variables or mainsection options,
 340 so an address is needed for access, or are exported to local_scan. */
 341
 342 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 343 BOOL    allow_domain_literals  = FALSE;
 344 BOOL    allow_mx_to_ip         = FALSE;
 345 BOOL    allow_utf8_domains     = FALSE;
 346 BOOL    authentication_failed  = FALSE;
 347
 348 BOOL    bounce_return_body     = TRUE;
 349 BOOL    bounce_return_message  = TRUE;
 350 BOOL    check_rfc2047_length   = TRUE;
 351 BOOL    commandline_checks_require_admin = FALSE;
 352
 353 #ifdef EXPERIMENTAL_DCC
 354 BOOL    dcc_direct_add_header  = FALSE;
 355 #endif
 356 BOOL    debug_store            = FALSE;
 357 BOOL    delivery_date_remove   = TRUE;
 358 BOOL    deliver_drop_privilege = FALSE;
 359 #ifdef ENABLE_DISABLE_FSYNC
 360 BOOL    disable_fsync          = FALSE;
 361 #endif
 362 BOOL    disable_ipv6           = FALSE;
 363 BOOL    dns_csa_use_reverse    = TRUE;
 364 BOOL    drop_cr                = FALSE;         /* No longer used */
 365
 366 BOOL    envelope_to_remove     = TRUE;
 367 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 368 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 369 BOOL    extract_addresses_remove_arguments = TRUE;
 370
 371 BOOL    host_checking          = FALSE;
 372 BOOL    host_lookup_deferred   = FALSE;
 373 BOOL    host_lookup_failed     = FALSE;
 374 BOOL    ignore_fromline_local  = FALSE;
 375
 376 BOOL    local_from_check       = TRUE;
 377 BOOL    local_sender_retain    = FALSE;
 378 BOOL    log_timezone           = FALSE;
 379 BOOL    message_body_newlines  = FALSE;
 380 BOOL    message_logs           = TRUE;
 381 #ifdef SUPPORT_I18N
 382 BOOL    message_smtputf8       = FALSE;
 383 #endif
 384 BOOL    mua_wrapper            = FALSE;
 385
 386 BOOL    preserve_message_logs  = FALSE;
 387 BOOL    print_topbitchars      = FALSE;
 388 BOOL    prod_requires_admin    = TRUE;
 389 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
 390 BOOL    proxy_session          = FALSE;
 391 #endif
 392
 393 #ifndef DISABLE_QUEUE_RAMP
 394 BOOL    queue_fast_ramp         = FALSE;
 395 #endif
 396 BOOL    queue_list_requires_admin = TRUE;
 397 BOOL    queue_only             = FALSE;
 398 BOOL    queue_only_load_latch  = TRUE;
 399 BOOL    queue_only_override    = TRUE;
 400 BOOL    queue_run_in_order     = FALSE;
 401 BOOL    recipients_max_reject  = FALSE;
 402 BOOL    return_path_remove     = TRUE;
 403
 404 BOOL    smtp_batched_input     = FALSE;
 405 BOOL    sender_helo_dnssec     = FALSE;
 406 BOOL    sender_host_dnssec     = FALSE;
 407 BOOL    smtp_accept_keepalive  = TRUE;
 408 BOOL    smtp_check_spool_space = TRUE;
 409 BOOL    smtp_enforce_sync      = TRUE;
 410 BOOL    smtp_etrn_serialize    = TRUE;
 411 BOOL    smtp_input             = FALSE;
 412 BOOL    smtp_return_error_details = FALSE;
 413 #ifdef SUPPORT_SPF
 414 BOOL    spf_result_guessed     = FALSE;
 415 #endif
 416 BOOL    split_spool_directory  = FALSE;
 417 BOOL    spool_wireformat       = FALSE;
 418 BOOL    strict_acl_vars        = FALSE;
 419 BOOL    strip_excess_angle_brackets = FALSE;
 420 BOOL    strip_trailing_dot     = FALSE;
 421 BOOL    syslog_duplication     = TRUE;
 422 BOOL    syslog_pid             = TRUE;
 423 BOOL    syslog_timestamp       = TRUE;
 424 BOOL    system_filter_gid_set  = FALSE;
 425 BOOL    system_filter_uid_set  = FALSE;
 426
 427 BOOL    tcp_nodelay            = TRUE;
 428 BOOL    write_rejectlog        = TRUE;
 429
 430 /******************************************************************************/
 431
 432 header_line *acl_added_headers = NULL;
 433 tree_node *acl_anchor          = NULL;
 434 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 435                                   NULL, NULL, NULL, NULL};
 436 int     acl_narg               = 0;
 437
 438 int     acl_level              = 0;
 439
 440 uschar *acl_not_smtp           = NULL;
 441 #ifdef WITH_CONTENT_SCAN
 442 uschar *acl_not_smtp_mime      = NULL;
 443 #endif
 444 uschar *acl_not_smtp_start     = NULL;
 445 uschar *acl_removed_headers    = NULL;
 446 uschar *acl_smtp_auth          = NULL;
 447 uschar *acl_smtp_connect       = NULL;
 448 uschar *acl_smtp_data          = NULL;
 449 #ifndef DISABLE_PRDR
 450 uschar *acl_smtp_data_prdr     = US"accept";
 451 #endif
 452 #ifndef DISABLE_DKIM
 453 uschar *acl_smtp_dkim          = NULL;
 454 #endif
 455 uschar *acl_smtp_etrn          = NULL;
 456 uschar *acl_smtp_expn          = NULL;
 457 uschar *acl_smtp_helo          = NULL;
 458 uschar *acl_smtp_mail          = NULL;
 459 uschar *acl_smtp_mailauth      = NULL;
 460 #ifdef WITH_CONTENT_SCAN
 461 uschar *acl_smtp_mime          = NULL;
 462 #endif
 463 uschar *acl_smtp_notquit       = NULL;
 464 uschar *acl_smtp_predata       = NULL;
 465 uschar *acl_smtp_quit          = NULL;
 466 uschar *acl_smtp_rcpt          = NULL;
 467 uschar *acl_smtp_starttls      = NULL;
 468 uschar *acl_smtp_vrfy          = NULL;
 469
 470 tree_node *acl_var_c           = NULL;
 471 tree_node *acl_var_m           = NULL;
 472 uschar *acl_verify_message     = NULL;
 473 string_item *acl_warn_logged   = NULL;
 474
 475 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 476 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 477
 478 uschar *acl_wherenames[]       = { US"RCPT",
 479                                    US"MAIL",
 480                                    US"PREDATA",
 481                                    US"MIME",
 482                                    US"DKIM",
 483                                    US"DATA",
 484 #ifndef DISABLE_PRDR
 485                                    US"PRDR",
 486 #endif
 487                                    US"non-SMTP",
 488                                    US"AUTH",
 489                                    US"connection",
 490                                    US"ETRN",
 491                                    US"EXPN",
 492                                    US"EHLO or HELO",
 493                                    US"MAILAUTH",
 494                                    US"non-SMTP-start",
 495                                    US"NOTQUIT",
 496                                    US"QUIT",
 497                                    US"STARTTLS",
 498                                    US"VRFY",
 499                                    US"delivery",
 500                                    US"unknown"
 501                                  };
 502
 503 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 504                                    US"550",     /* MAIL */
 505                                    US"550",     /* PREDATA */
 506                                    US"550",     /* MIME */
 507                                    US"550",     /* DKIM */
 508                                    US"550",     /* DATA */
 509 #ifndef DISABLE_PRDR
 510                                    US"550",    /* RCPT PRDR */
 511 #endif
 512                                    US"0",       /* not SMTP; not relevant */
 513                                    US"503",     /* AUTH */
 514                                    US"550",     /* connect */
 515                                    US"458",     /* ETRN */
 516                                    US"550",     /* EXPN */
 517                                    US"550",     /* HELO/EHLO */
 518                                    US"0",       /* MAILAUTH; not relevant */
 519                                    US"0",       /* not SMTP; not relevant */
 520                                    US"0",       /* NOTQUIT; not relevant */
 521                                    US"0",       /* QUIT; not relevant */
 522                                    US"550",     /* STARTTLS */
 523                                    US"252",     /* VRFY */
 524                                    US"0",       /* delivery; not relevant */
 525                                    US"0"        /* unknown; not relevant */
 526                                  };
 527
 528 uschar *add_environment        = NULL;
 529 address_item  *addr_duplicate  = NULL;
 530
 531 address_item address_defaults = {
 532   .next =               NULL,
 533   .parent =             NULL,
 534   .first =              NULL,
 535   .dupof =              NULL,
 536   .start_router =       NULL,
 537   .router =             NULL,
 538   .transport =          NULL,
 539   .host_list =          NULL,
 540   .host_used =          NULL,
 541   .fallback_hosts =     NULL,
 542   .reply =              NULL,
 543   .retries =            NULL,
 544   .address =            NULL,
 545   .unique =             NULL,
 546   .cc_local_part =      NULL,
 547   .lc_local_part =      NULL,
 548   .local_part =         NULL,
 549   .prefix =             NULL,
 550   .prefix_v =           NULL,
 551   .suffix =             NULL,
 552   .suffix_v =           NULL,
 553   .domain =             NULL,
 554   .address_retry_key =  NULL,
 555   .domain_retry_key =   NULL,
 556   .current_dir =        NULL,
 557   .home_dir =           NULL,
 558   .message =            NULL,
 559   .user_message =       NULL,
 560   .onetime_parent =     NULL,
 561   .pipe_expandn =       NULL,
 562   .return_filename =    NULL,
 563   .self_hostname =      NULL,
 564   .shadow_message =     NULL,
 565 #ifndef DISABLE_TLS
 566   .cipher =             NULL,
 567   .ourcert =            NULL,
 568   .peercert =           NULL,
 569   .peerdn =             NULL,
 570   .ocsp =               OCSP_NOT_REQ,
 571 #endif
 572 #ifdef EXPERIMENTAL_DSN_INFO
 573   .smtp_greeting =      NULL,
 574   .helo_response =      NULL,
 575 #endif
 576   .authenticator =      NULL,
 577   .auth_id =            NULL,
 578   .auth_sndr =          NULL,
 579   .dsn_orcpt =          NULL,
 580   .dsn_flags =          0,
 581   .dsn_aware =          0,
 582   .uid =                (uid_t)(-1),
 583   .gid =                (gid_t)(-1),
 584   .flags =              { 0 },
 585   .domain_cache =       { 0 },                /* domain_cache - any larger array should be zeroed */
 586   .localpart_cache =    { 0 },                /* localpart_cache - ditto */
 587   .mode =               -1,
 588   .more_errno =         0,
 589   .delivery_time =      {.tv_sec = 0, .tv_usec = 0},
 590   .basic_errno =        ERRNO_UNKNOWNERROR,
 591   .child_count =        0,
 592   .return_file =        -1,
 593   .special_action =     SPECIAL_NONE,
 594   .transport_return =   DEFER,
 595   .prop = {                                     /* fields that are propagated to children */
 596     .address_data =     NULL,
 597     .domain_data =      NULL,
 598     .localpart_data =   NULL,
 599     .errors_address =   NULL,
 600     .extra_headers =    NULL,
 601     .remove_headers =   NULL,
 602     .variables =        NULL,
 603     .ignore_error =     FALSE,
 604 #ifdef SUPPORT_I18N
 605     .utf8_msg =         FALSE,
 606     .utf8_downcvt =     FALSE,
 607     .utf8_downcvt_maybe = FALSE
 608 #endif
 609   }
 610 };
 611
 612 uschar *address_file           = NULL;
 613 uschar *address_pipe           = NULL;
 614 tree_node *addresslist_anchor  = NULL;
 615 int     addresslist_count      = 0;
 616 gid_t  *admin_groups           = NULL;
 617
 618 #ifdef EXPERIMENTAL_ARC
 619 struct arc_set *arc_received    = NULL;
 620 int     arc_received_instance   = 0;
 621 int     arc_oldest_pass         = 0;
 622 const uschar *arc_state         = NULL;
 623 const uschar *arc_state_reason  = NULL;
 624 #endif
 625
 626 uschar *authenticated_fail_id  = NULL;
 627 uschar *authenticated_id       = NULL;
 628 uschar *authenticated_sender   = NULL;
 629 auth_instance  *auths          = NULL;
 630 uschar *auth_advertise_hosts   = US"*";
 631 auth_instance auth_defaults    = {
 632     .next =             NULL,
 633     .name =             NULL,
 634     .info =             NULL,
 635     .options_block =    NULL,
 636     .driver_name =      NULL,
 637     .advertise_condition = NULL,
 638     .client_condition = NULL,
 639     .public_name =      NULL,
 640     .set_id =           NULL,
 641     .set_client_id =    NULL,
 642     .mail_auth_condition = NULL,
 643     .server_debug_string = NULL,
 644     .server_condition = NULL,
 645     .client =           FALSE,
 646     .server =           FALSE,
 647     .advertised =       FALSE
 648 };
 649
 650 uschar *auth_defer_msg         = US"reason not recorded";
 651 uschar *auth_defer_user_msg    = US"";
 652 const uschar *auth_vars[AUTH_VARS];
 653 int     auto_thaw              = 0;
 654 #ifdef WITH_CONTENT_SCAN
 655 int     av_failed              = FALSE; /* boolean but accessed as vtype_int*/
 656 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 657 #endif
 658
 659 #if BASE_62 == 62
 660 uschar *base62_chars=
 661     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 662 #else
 663 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 664 #endif
 665
 666 uschar *bi_command             = NULL;
 667 uschar *big_buffer             = NULL;
 668 int     big_buffer_size        = BIG_BUFFER_SIZE;
 669 #ifdef EXPERIMENTAL_BRIGHTMAIL
 670 uschar *bmi_alt_location       = NULL;
 671 uschar *bmi_base64_tracker_verdict = NULL;
 672 uschar *bmi_base64_verdict     = NULL;
 673 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 674 int     bmi_deliver            = 1;
 675 int     bmi_run                = 0;
 676 uschar *bmi_verdicts           = NULL;
 677 #endif
 678 int     bsmtp_transaction_linecount = 0;
 679 int     body_8bitmime          = 0;
 680 int     body_linecount         = 0;
 681 int     body_zerocount         = 0;
 682 uschar *bounce_message_file    = NULL;
 683 uschar *bounce_message_text    = NULL;
 684 uschar *bounce_recipient       = NULL;
 685 int     bounce_return_linesize_limit = 998;
 686 int     bounce_return_size_limit = 100*1024;
 687 uschar *bounce_sender_authentication = NULL;
 688
 689 uschar *callout_address        = NULL;
 690 int     callout_cache_domain_positive_expire = 7*24*60*60;
 691 int     callout_cache_domain_negative_expire = 3*60*60;
 692 int     callout_cache_positive_expire = 24*60*60;
 693 int     callout_cache_negative_expire = 2*60*60;
 694 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 695 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 696 int     check_log_inodes       = 100;
 697 int_eximarith_t check_log_space = 10*1024;      /* 10K Kbyte == 10MB */
 698 int     check_spool_inodes     = 100;
 699 int_eximarith_t check_spool_space = 10*1024;    /* 10K Kbyte == 10MB */
 700
 701 uschar *chunking_advertise_hosts = US"*";
 702 unsigned chunking_datasize     = 0;
 703 unsigned chunking_data_left    = 0;
 704 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 705 const pcre2_code *regex_CHUNKING     = NULL;
 706
 707 #ifdef EXPERIMENTAL_ESMTP_LIMITS
 708 const pcre2_code *regex_LIMITS        = NULL;
 709 #endif
 710
 711 uschar *client_authenticator   = NULL;
 712 uschar *client_authenticated_id = NULL;
 713 uschar *client_authenticated_sender = NULL;
 714 int     clmacro_count          = 0;
 715 uschar *clmacros[MAX_CLMACROS];
 716 FILE   *config_file            = NULL;
 717 const uschar *config_filename  = NULL;
 718 int     config_lineno          = 0;
 719 #ifdef CONFIGURE_GROUP
 720 gid_t   config_gid             = CONFIGURE_GROUP;
 721 #else
 722 gid_t   config_gid             = 0;
 723 #endif
 724 uschar *config_main_filelist   = US CONFIGURE_FILE
 725                          "\0<-----------Space to patch configure_filename->";
 726 uschar *config_main_filename   = NULL;
 727 uschar *config_main_directory  = NULL;
 728
 729 #ifdef CONFIGURE_OWNER
 730 uid_t   config_uid             = CONFIGURE_OWNER;
 731 #else
 732 uid_t   config_uid             = 0;
 733 #endif
 734
 735 int     connection_max_messages= -1;
 736 uschar *continue_proxy_cipher  = NULL;
 737 BOOL    continue_proxy_dane    = FALSE;
 738 uschar *continue_proxy_sni     = NULL;
 739 uschar *continue_hostname      = NULL;
 740 uschar *continue_host_address  = NULL;
 741 int     continue_sequence      = 1;
 742 uschar *continue_transport     = NULL;
 743 #ifdef EXPERIMENTAL_ESMTP_LIMITS
 744 unsigned continue_limit_mail   = 0;
 745 unsigned continue_limit_rcpt   = 0;
 746 unsigned continue_limit_rcptdom= 0;
 747 #endif
 748
 749 uschar *csa_status             = NULL;
 750 cut_t   cutthrough = {
 751   .callout_hold_only =  FALSE,                          /* verify-only: normal delivery */
 752   .delivery =           FALSE,                          /* when to attempt */
 753   .defer_pass =         FALSE,                          /* on defer: spool locally */
 754   .is_tls =             FALSE,                          /* not a TLS conn yet */
 755   .cctx =               {.sock = -1},                   /* open connection */
 756   .nrcpt =              0,                              /* number of addresses */
 757 };
 758
 759 int     daemon_notifier_fd     = -1;
 760 uschar *daemon_smtp_port       = US"smtp";
 761 int     daemon_startup_retries = 9;
 762 int     daemon_startup_sleep   = 30;
 763
 764 #ifdef EXPERIMENTAL_DCC
 765 uschar *dcc_header             = NULL;
 766 uschar *dcc_result             = NULL;
 767 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 768 uschar *dccifd_options         = US"header";
 769 #endif
 770
 771 int     debug_fd               = -1;
 772 FILE   *debug_file             = NULL;
 773 int     debug_notall[]         = {
 774   Di_memory,
 775   Di_noutf8,
 776   -1
 777 };
 778 bit_table debug_options[]      = { /* must be in alphabetical order and use
 779                                  only the enum values from macro.h */
 780   BIT_TABLE(D, acl),
 781   BIT_TABLE(D, all),
 782   BIT_TABLE(D, auth),
 783   BIT_TABLE(D, deliver),
 784   BIT_TABLE(D, dns),
 785   BIT_TABLE(D, dnsbl),
 786   BIT_TABLE(D, exec),
 787   BIT_TABLE(D, expand),
 788   BIT_TABLE(D, filter),
 789   BIT_TABLE(D, hints_lookup),
 790   BIT_TABLE(D, host_lookup),
 791   BIT_TABLE(D, ident),
 792   BIT_TABLE(D, interface),
 793   BIT_TABLE(D, lists),
 794   BIT_TABLE(D, load),
 795   BIT_TABLE(D, local_scan),
 796   BIT_TABLE(D, lookup),
 797   BIT_TABLE(D, memory),
 798   BIT_TABLE(D, noutf8),
 799   BIT_TABLE(D, pid),
 800   BIT_TABLE(D, process_info),
 801   BIT_TABLE(D, queue_run),
 802   BIT_TABLE(D, receive),
 803   BIT_TABLE(D, resolver),
 804   BIT_TABLE(D, retry),
 805   BIT_TABLE(D, rewrite),
 806   BIT_TABLE(D, route),
 807   BIT_TABLE(D, timestamp),
 808   BIT_TABLE(D, tls),
 809   BIT_TABLE(D, transport),
 810   BIT_TABLE(D, uid),
 811   BIT_TABLE(D, verify),
 812 };
 813 int     debug_options_count    = nelem(debug_options);
 814 unsigned debug_pretrigger_bsize= 0;
 815 uschar * debug_pretrigger_buf  = NULL;
 816 unsigned int debug_selector    = 0;
 817
 818 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 819 uschar *delay_warning_condition=
 820   US"${if or {"
 821             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 822             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 823             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 824             "} {no}{yes}}";
 825 uschar *deliver_address_data   = NULL;
 826 int     deliver_datafile       = -1;
 827 const uschar *deliver_domain   = NULL;
 828 uschar *deliver_domain_data    = NULL;
 829 const uschar *deliver_domain_orig = NULL;
 830 const uschar *deliver_domain_parent = NULL;
 831 time_t  deliver_frozen_at      = 0;
 832 uschar *deliver_home           = NULL;
 833 const uschar *deliver_host     = NULL;
 834 const uschar *deliver_host_address = NULL;
 835 int     deliver_host_port      = 0;
 836 uschar *deliver_in_buffer      = NULL;
 837 ino_t   deliver_inode          = 0;
 838 uschar *deliver_localpart      = NULL;
 839 uschar *deliver_localpart_data = NULL;
 840 uschar *deliver_localpart_orig = NULL;
 841 uschar *deliver_localpart_parent = NULL;
 842 uschar *deliver_localpart_prefix = NULL;
 843 uschar *deliver_localpart_prefix_v = NULL;
 844 uschar *deliver_localpart_suffix = NULL;
 845 uschar *deliver_localpart_suffix_v = NULL;
 846 uschar *deliver_out_buffer     = NULL;
 847 int     deliver_queue_load_max = -1;
 848 address_item  *deliver_recipients = NULL;
 849 uschar *deliver_selectstring   = NULL;
 850 uschar *deliver_selectstring_sender = NULL;
 851
 852 #ifndef DISABLE_DKIM
 853 unsigned dkim_collect_input      = 0;
 854 uschar *dkim_cur_signer          = NULL;
 855 int     dkim_key_length          = 0;
 856 void   *dkim_signatures          = NULL;
 857 uschar *dkim_signers             = NULL;
 858 uschar *dkim_signing_domain      = NULL;
 859 uschar *dkim_signing_selector    = NULL;
 860 uschar *dkim_verify_hashes       = US"sha256:sha512";
 861 uschar *dkim_verify_keytypes     = US"ed25519:rsa";
 862 uschar *dkim_verify_min_keysizes = US"rsa=1024 ed25519=250";
 863 BOOL    dkim_verify_minimal      = FALSE;
 864 uschar *dkim_verify_overall      = NULL;
 865 uschar *dkim_verify_signers      = US"$dkim_signers";
 866 uschar *dkim_verify_status       = NULL;
 867 uschar *dkim_verify_reason       = NULL;
 868 #endif
 869 #ifdef SUPPORT_DMARC
 870 uschar *dmarc_domain_policy     = NULL;
 871 uschar *dmarc_forensic_sender   = NULL;
 872 uschar *dmarc_history_file      = NULL;
 873 uschar *dmarc_status            = NULL;
 874 uschar *dmarc_status_text       = NULL;
 875 uschar *dmarc_tld_file          = NULL;
 876 uschar *dmarc_used_domain       = NULL;
 877 #endif
 878
 879 uschar *dns_again_means_nonexist = NULL;
 880 int     dns_csa_search_limit   = 5;
 881 int     dns_cname_loops        = 1;
 882 #ifdef SUPPORT_DANE
 883 int     dns_dane_ok            = -1;
 884 #endif
 885 uschar *dns_ipv4_lookup        = NULL;
 886 int     dns_retrans            = 0;
 887 int     dns_retry              = 0;
 888 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 889 uschar *dns_trust_aa           = NULL;
 890 int     dns_use_edns0          = -1; /* <0 = not coerced */
 891 uschar *dnslist_domain         = NULL;
 892 uschar *dnslist_matched        = NULL;
 893 uschar *dnslist_text           = NULL;
 894 uschar *dnslist_value          = NULL;
 895 tree_node *domainlist_anchor   = NULL;
 896 int     domainlist_count       = 0;
 897 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 898 unsigned int dtrigger_selector = 0;
 899
 900 int     errno_quota            = ERRNO_QUOTA;
 901 uschar *errors_copy            = NULL;
 902 int     error_handling         = ERRORS_SENDER;
 903 uschar *errors_reply_to        = NULL;
 904 int     errors_sender_rc       = EXIT_FAILURE;
 905 #ifndef DISABLE_EVENT
 906 uschar *event_action             = NULL;        /* expansion for delivery events */
 907 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 908 int     event_defer_errno        = 0;
 909 const uschar *event_name         = NULL;        /* event name variable */
 910 #endif
 911
 912
 913 gid_t   exim_gid               = EXIM_GID;
 914 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 915                         "\0<---------------Space to patch exim_path->";
 916 uid_t   exim_uid               = EXIM_UID;
 917 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 918 int     expand_forbid          = 0;
 919 int     expand_nlength[EXPAND_MAXN+1];
 920 int     expand_nmax            = -1;
 921 const uschar *expand_nstring[EXPAND_MAXN+1];
 922 uschar *expand_string_message;
 923 uschar *extra_local_interfaces = NULL;
 924
 925 int     fake_response          = OK;
 926 uschar *fake_response_text     = US"Your message has been rejected but is "
 927                                    "being kept for evaluation.\nIf it was a "
 928                                    "legitimate message, it may still be "
 929                                    "delivered to the target recipient(s).";
 930 int     filter_n[FILTER_VARIABLE_COUNT];
 931 int     filter_sn[FILTER_VARIABLE_COUNT];
 932 int     filter_test            = FTEST_NONE;
 933 uschar *filter_test_sfile      = NULL;
 934 uschar *filter_test_ufile      = NULL;
 935 uschar *filter_thisaddress     = NULL;
 936 int     finduser_retries       = 0;
 937 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 938 uschar *freeze_tell            = NULL;
 939 uschar *freeze_tell_config     = NULL;
 940 uschar *fudged_queue_times     = US"";
 941
 942 uschar *gecos_name             = NULL;
 943 uschar *gecos_pattern          = NULL;
 944 rewrite_rule  *global_rewrite_rules = NULL;
 945
 946 volatile sig_atomic_t had_command_timeout = 0;
 947 volatile sig_atomic_t had_command_sigterm = 0;
 948 volatile sig_atomic_t had_data_timeout    = 0;
 949 volatile sig_atomic_t had_data_sigint     = 0;
 950 const uschar *headers_charset  = US HEADERS_CHARSET;
 951 int     header_insert_maxlen   = 64 * 1024;
 952 header_line  *header_last      = NULL;
 953 header_line  *header_list      = NULL;
 954 int     header_maxsize         = HEADER_MAXSIZE;
 955 int     header_line_maxsize    = 0;
 956
 957 header_name header_names[] = {
 958   /* name               len     allow_resent    htype */
 959   { US"bcc",            3,      TRUE,           htype_bcc },
 960   { US"cc",             2,      TRUE,           htype_cc },
 961   { US"date",           4,      TRUE,           htype_date },
 962   { US"delivery-date", 13,      FALSE,          htype_delivery_date },
 963   { US"envelope-to",   11,      FALSE,          htype_envelope_to },
 964   { US"from",           4,      TRUE,           htype_from },
 965   { US"message-id",    10,      TRUE,           htype_id },
 966   { US"received",       8,      FALSE,          htype_received },
 967   { US"reply-to",       8,      FALSE,          htype_reply_to },
 968   { US"return-path",   11,      FALSE,          htype_return_path },
 969   { US"sender",         6,      TRUE,           htype_sender },
 970   { US"subject",        7,      FALSE,          htype_subject },
 971   { US"to",             2,      TRUE,           htype_to }
 972 };
 973
 974 int header_names_size          = nelem(header_names);
 975
 976 uschar *helo_accept_junk_hosts = NULL;
 977 uschar *helo_allow_chars       = US"";
 978 uschar *helo_lookup_domains    = US"@ : @[]";
 979 uschar *helo_try_verify_hosts  = NULL;
 980 uschar *helo_verify_hosts      = NULL;
 981 const uschar *hex_digits       = CUS"0123456789abcdef";
 982 uschar *hold_domains           = NULL;
 983 uschar *host_data              = NULL;
 984 uschar *host_lookup            = NULL;
 985 uschar *host_lookup_order      = US"bydns:byaddr";
 986 uschar *host_lookup_msg        = US"";
 987 int     host_number            = 0;
 988 uschar *host_number_string     = NULL;
 989 uschar *host_reject_connection = NULL;
 990 tree_node *hostlist_anchor     = NULL;
 991 int     hostlist_count         = 0;
 992 uschar *hosts_treat_as_local   = NULL;
 993 uschar *hosts_require_helo     = US"*";
 994 uschar *hosts_connection_nolog = NULL;
 995
 996 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 997 uschar *ignore_fromline_hosts  = NULL;
 998 int     inetd_wait_timeout     = -1;
 999 uschar *initial_cwd            = NULL;
1000 uschar *interface_address      = NULL;
1001 int     interface_port         = -1;
1002 uschar *iterate_item           = NULL;
1003
1004 int     journal_fd             = -1;
1005
1006 uschar *keep_environment       = NULL;
1007
1008 int     keep_malformed         = 4*24*60*60;    /* 4 days */
1009
1010 uschar *eldap_dn               = NULL;
1011 #ifdef EXPERIMENTAL_ESMTP_LIMITS
1012 uschar *limits_advertise_hosts = US"*";
1013 #endif
1014 int     load_average           = -2;
1015 uschar *local_from_prefix      = NULL;
1016 uschar *local_from_suffix      = NULL;
1017
1018 #if HAVE_IPV6
1019 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
1020 #else
1021 uschar *local_interfaces       = US"0.0.0.0";
1022 #endif
1023
1024 #ifdef HAVE_LOCAL_SCAN
1025 uschar *local_scan_data        = NULL;
1026 int     local_scan_timeout     = 5*60;
1027 #endif
1028 gid_t   local_user_gid         = (gid_t)(-1);
1029 uid_t   local_user_uid         = (uid_t)(-1);
1030
1031 tree_node *localpartlist_anchor= NULL;
1032 int     localpartlist_count    = 0;
1033 uschar *log_buffer             = NULL;
1034
1035 int     log_default[]          = { /* for initializing log_selector */
1036   Li_acl_warn_skipped,
1037   Li_connection_reject,
1038   Li_delay_delivery,
1039   Li_dkim,
1040   Li_dnslist_defer,
1041   Li_etrn,
1042   Li_host_lookup_failed,
1043   Li_lost_incoming_connection,
1044   Li_outgoing_interface, /* see d_log_interface in deliver.c */
1045   Li_msg_id,
1046   Li_queue_run,
1047   Li_queue_time_exclusive,
1048   Li_rejected_header,
1049   Li_retry_defer,
1050   Li_sender_verify_fail,
1051   Li_size_reject,
1052   Li_skip_delivery,
1053   Li_smtp_confirmation,
1054   Li_tls_certificate_verified,
1055   Li_tls_cipher,
1056   -1
1057 };
1058
1059 uschar *log_file_path          = US LOG_FILE_PATH
1060                            "\0<--------------Space to patch log_file_path->";
1061
1062 int     log_notall[]           = {
1063   -1
1064 };
1065 bit_table log_options[]        = { /* must be in alphabetical order,
1066                                 with definitions from enum logbit. */
1067   BIT_TABLE(L, 8bitmime),
1068   BIT_TABLE(L, acl_warn_skipped),
1069   BIT_TABLE(L, address_rewrite),
1070   BIT_TABLE(L, all),
1071   BIT_TABLE(L, all_parents),
1072   BIT_TABLE(L, arguments),
1073   BIT_TABLE(L, connection_reject),
1074   BIT_TABLE(L, delay_delivery),
1075   BIT_TABLE(L, deliver_time),
1076   BIT_TABLE(L, delivery_size),
1077 #ifndef DISABLE_DKIM
1078   BIT_TABLE(L, dkim),
1079   BIT_TABLE(L, dkim_verbose),
1080 #endif
1081   BIT_TABLE(L, dnslist_defer),
1082   BIT_TABLE(L, dnssec),
1083   BIT_TABLE(L, etrn),
1084   BIT_TABLE(L, host_lookup_failed),
1085   BIT_TABLE(L, ident_timeout),
1086   BIT_TABLE(L, incoming_interface),
1087   BIT_TABLE(L, incoming_port),
1088   BIT_TABLE(L, lost_incoming_connection),
1089   BIT_TABLE(L, millisec),
1090   BIT_TABLE(L, msg_id),
1091   BIT_TABLE(L, msg_id_created),
1092   BIT_TABLE(L, outgoing_interface),
1093   BIT_TABLE(L, outgoing_port),
1094   BIT_TABLE(L, pid),
1095   BIT_TABLE(L, pipelining),
1096   BIT_TABLE(L, protocol_detail),
1097 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1098   BIT_TABLE(L, proxy),
1099 #endif
1100   BIT_TABLE(L, queue_run),
1101   BIT_TABLE(L, queue_time),
1102   BIT_TABLE(L, queue_time_exclusive),
1103   BIT_TABLE(L, queue_time_overall),
1104   BIT_TABLE(L, receive_time),
1105   BIT_TABLE(L, received_recipients),
1106   BIT_TABLE(L, received_sender),
1107   BIT_TABLE(L, rejected_header),
1108   { US"rejected_headers", Li_rejected_header },
1109   BIT_TABLE(L, retry_defer),
1110   BIT_TABLE(L, return_path_on_delivery),
1111   BIT_TABLE(L, sender_on_delivery),
1112   BIT_TABLE(L, sender_verify_fail),
1113   BIT_TABLE(L, size_reject),
1114   BIT_TABLE(L, skip_delivery),
1115   BIT_TABLE(L, smtp_confirmation),
1116   BIT_TABLE(L, smtp_connection),
1117   BIT_TABLE(L, smtp_incomplete_transaction),
1118   BIT_TABLE(L, smtp_mailauth),
1119   BIT_TABLE(L, smtp_no_mail),
1120   BIT_TABLE(L, smtp_protocol_error),
1121   BIT_TABLE(L, smtp_syntax_error),
1122   BIT_TABLE(L, subject),
1123   BIT_TABLE(L, tls_certificate_verified),
1124   BIT_TABLE(L, tls_cipher),
1125   BIT_TABLE(L, tls_peerdn),
1126   BIT_TABLE(L, tls_resumption),
1127   BIT_TABLE(L, tls_sni),
1128   BIT_TABLE(L, unknown_in_list),
1129 };
1130 int     log_options_count      = nelem(log_options);
1131
1132 int     log_reject_target      = 0;
1133 unsigned int log_selector[log_selector_size]; /* initialized in main() */
1134 uschar *log_selector_string    = NULL;
1135 FILE   *log_stderr             = NULL;
1136 uschar *login_sender_address   = NULL;
1137 uschar *lookup_dnssec_authenticated = NULL;
1138 int     lookup_open_max        = 25;
1139 uschar *lookup_value           = NULL;
1140
1141 macro_item *macros_user        = NULL;
1142 uschar *mailstore_basename     = NULL;
1143 #ifdef WITH_CONTENT_SCAN
1144 uschar *malware_name           = NULL;  /* Virus Name */
1145 #endif
1146 int     max_received_linelength= 0;
1147 int     max_username_length    = 0;
1148 int     message_age            = 0;
1149 uschar *message_body           = NULL;
1150 uschar *message_body_end       = NULL;
1151 int     message_body_size      = 0;
1152 int     message_body_visible   = 500;
1153 int     message_ended          = END_NOTSTARTED;
1154 uschar *message_headers        = NULL;
1155 uschar *message_id;
1156 uschar *message_id_domain      = NULL;
1157 uschar *message_id_text        = NULL;
1158 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
1159 uschar *message_id_external;
1160 int     message_linecount      = 0;
1161 int     message_size           = 0;
1162 uschar *message_size_limit     = US"50M";
1163 #ifdef SUPPORT_I18N
1164 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
1165 #endif
1166 uschar  message_subdir[2]      = { 0, 0 };
1167 uschar *message_reference      = NULL;
1168
1169 /* MIME ACL expandables */
1170 #ifdef WITH_CONTENT_SCAN
1171 int     mime_anomaly_level     = 0;
1172 const uschar *mime_anomaly_text      = NULL;
1173 uschar *mime_boundary          = NULL;
1174 uschar *mime_charset           = NULL;
1175 uschar *mime_content_description = NULL;
1176 uschar *mime_content_disposition = NULL;
1177 uschar *mime_content_id        = NULL;
1178 unsigned int mime_content_size = 0;
1179 uschar *mime_content_transfer_encoding = NULL;
1180 uschar *mime_content_type      = NULL;
1181 uschar *mime_decoded_filename  = NULL;
1182 uschar *mime_filename          = NULL;
1183 int     mime_is_multipart      = 0;
1184 int     mime_is_coverletter    = 0;
1185 int     mime_is_rfc822         = 0;
1186 int     mime_part_count        = -1;
1187 #endif
1188
1189 uid_t  *never_users            = NULL;
1190 uschar *notifier_socket        = US"$spool_directory/" NOTIFIER_SOCKET_NAME ;
1191
1192 const int on                   = 1;     /* for setsockopt */
1193 const int off                  = 0;
1194
1195 uid_t   original_euid;
1196 gid_t   originator_gid;
1197 uschar *originator_login       = NULL;
1198 uschar *originator_name        = NULL;
1199 uid_t   originator_uid;
1200 uschar *override_local_interfaces = NULL;
1201 uschar *override_pid_file_path = NULL;
1202
1203 pcre2_general_context * pcre_gen_ctx = NULL;
1204 pcre2_compile_context * pcre_cmp_ctx = NULL;
1205 pcre2_match_context * pcre_mtc_ctx = NULL;
1206
1207 uschar *percent_hack_domains   = NULL;
1208 uschar *pid_file_path          = US PID_FILE_PATH
1209                            "\0<--------------Space to patch pid_file_path->";
1210 #ifndef DISABLE_PIPE_CONNECT
1211 uschar *pipe_connect_advertise_hosts = US"*";
1212 #endif
1213 uschar *pipelining_advertise_hosts = US"*";
1214 uschar *primary_hostname       = NULL;
1215 uschar *process_info;
1216 int     process_info_len       = 0;
1217 uschar *process_log_path       = NULL;
1218 const uschar *process_purpose  = US"fresh-exec";
1219
1220 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1221 uschar *hosts_proxy            = NULL;
1222 uschar *proxy_external_address = NULL;
1223 int     proxy_external_port    = 0;
1224 uschar *proxy_local_address    = NULL;
1225 int     proxy_local_port       = 0;
1226 int     proxy_protocol_timeout = 3;
1227 #endif
1228
1229 uschar *prvscheck_address      = NULL;
1230 uschar *prvscheck_keynum       = NULL;
1231 uschar *prvscheck_result       = NULL;
1232
1233
1234 const uschar *qualify_domain_recipient = NULL;
1235 uschar *qualify_domain_sender  = NULL;
1236 uschar *queue_domains          = NULL;
1237 int     queue_interval         = -1;
1238 uschar *queue_name             = US"";
1239 uschar *queue_name_dest        = NULL;
1240 uschar *queue_only_file        = NULL;
1241 int     queue_only_load        = -1;
1242 uschar *queue_run_max          = US"5";
1243 pid_t   queue_run_pid          = (pid_t)0;
1244 int     queue_run_pipe         = -1;
1245 unsigned queue_size            = 0;
1246 time_t  queue_size_next        = 0;
1247 uschar *queue_smtp_domains     = NULL;
1248
1249 uint32_t random_seed           = 0;
1250 tree_node *ratelimiters_cmd    = NULL;
1251 tree_node *ratelimiters_conn   = NULL;
1252 tree_node *ratelimiters_mail   = NULL;
1253 uschar *raw_active_hostname    = NULL;
1254 uschar *raw_sender             = NULL;
1255 uschar **raw_recipients        = NULL;
1256 int     raw_recipients_count   = 0;
1257
1258 int     rcpt_count             = 0;
1259 int     rcpt_fail_count        = 0;
1260 int     rcpt_defer_count       = 0;
1261 gid_t   real_gid;
1262 uid_t   real_uid;
1263 int     receive_linecount      = 0;
1264 int     receive_messagecount   = 0;
1265 int     receive_timeout        = 0;
1266 int     received_count         = 0;
1267 uschar *received_for           = NULL;
1268
1269 /*  This is the default text for Received headers generated by Exim. The
1270 date  will be automatically added on the end. */
1271
1272 uschar *received_header_text   = US
1273      "Received: "
1274      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1275        "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1276          "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1277      "by $primary_hostname "
1278      "${if def:received_protocol {with $received_protocol }}"
1279 #ifndef DISABLE_TLS
1280      "${if def:tls_in_ver        { ($tls_in_ver)}}"
1281      "${if def:tls_in_cipher_std { tls $tls_in_cipher_std\n\t}}"
1282 #endif
1283      "(Exim $version_number)\n\t"
1284      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1285      "id $message_exim_id"
1286      "${if def:received_for {\n\tfor $received_for}}"
1287      "\0<---------------Space to patch received_header_text->";
1288
1289 int     received_headers_max   = 30;
1290 uschar *received_protocol      = NULL;
1291 struct timeval received_time   = { 0, 0 };
1292 struct timeval received_time_complete = { 0, 0 };
1293 uschar *recipient_data         = NULL;
1294 uschar *recipient_unqualified_hosts = NULL;
1295 uschar *recipient_verify_failure = NULL;
1296 int     recipients_count       = 0;
1297 recipient_item  *recipients_list = NULL;
1298 int     recipients_list_max    = 0;
1299 int     recipients_max         = 50000;
1300 const pcre2_code *regex_AUTH         = NULL;
1301 const pcre2_code *regex_check_dns_names = NULL;
1302 const pcre2_code *regex_From         = NULL;
1303 const pcre2_code *regex_IGNOREQUOTA  = NULL;
1304 const pcre2_code *regex_PIPELINING   = NULL;
1305 const pcre2_code *regex_SIZE         = NULL;
1306 #ifndef DISABLE_PIPE_CONNECT
1307 const pcre2_code *regex_EARLY_PIPE   = NULL;
1308 #endif
1309 const pcre2_code *regex_ismsgid      = NULL;
1310 const pcre2_code *regex_smtp_code    = NULL;
1311 const uschar *regex_vars[REGEX_VARS];
1312 #ifdef WHITELIST_D_MACROS
1313 const pcre2_code *regex_whitelisted_macro = NULL;
1314 #endif
1315 #ifdef WITH_CONTENT_SCAN
1316 uschar *regex_match_string     = NULL;
1317 #endif
1318 int     remote_delivery_count  = 0;
1319 int     remote_max_parallel    = 2;
1320 uschar *remote_sort_domains    = NULL;
1321 int     retry_data_expire      = 7*24*60*60;
1322 int     retry_interval_max     = 24*60*60;
1323 int     retry_maximum_timeout  = 0;        /* set from retry config */
1324 retry_config  *retries         = NULL;
1325 uschar *return_path            = NULL;
1326 int     rewrite_existflags     = 0;
1327 uschar *rfc1413_hosts          = US"@[]";
1328 int     rfc1413_query_timeout  = 0;
1329 uid_t   root_gid               = ROOT_GID;
1330 uid_t   root_uid               = ROOT_UID;
1331
1332 router_instance  *routers  = NULL;
1333 router_instance  router_defaults = {
1334     .next =                     NULL,
1335     .name =                     NULL,
1336     .info =                     NULL,
1337     .options_block =            NULL,
1338     .driver_name =              NULL,
1339
1340     .address_data =             NULL,
1341 #ifdef EXPERIMENTAL_BRIGHTMAIL
1342     .bmi_rule =                 NULL,
1343 #endif
1344     .cannot_route_message =     NULL,
1345     .condition =                NULL,
1346     .current_directory =        NULL,
1347     .debug_string =             NULL,
1348     .domains =                  NULL,
1349     .errors_to =                NULL,
1350     .expand_gid =               NULL,
1351     .expand_uid =               NULL,
1352     .expand_more =              NULL,
1353     .expand_unseen =            NULL,
1354     .extra_headers =            NULL,
1355     .fallback_hosts =           NULL,
1356     .home_directory =           NULL,
1357     .ignore_target_hosts =      NULL,
1358     .local_parts =              NULL,
1359     .pass_router_name =         NULL,
1360     .prefix =                   NULL,
1361     .redirect_router_name =     NULL,
1362     .remove_headers =           NULL,
1363     .require_files =            NULL,
1364     .router_home_directory =    NULL,
1365     .self =                     US"freeze",
1366     .senders =                  NULL,
1367     .suffix =                   NULL,
1368     .translate_ip_address =     NULL,
1369     .transport_name =           NULL,
1370
1371     .address_test =             TRUE,
1372 #ifdef EXPERIMENTAL_BRIGHTMAIL
1373     .bmi_deliver_alternate =    FALSE,
1374     .bmi_deliver_default =      FALSE,
1375     .bmi_dont_deliver =         FALSE,
1376 #endif
1377     .expn =                     TRUE,
1378     .caseful_local_part =       FALSE,
1379     .check_local_user =         FALSE,
1380     .disable_logging =          FALSE,
1381     .fail_verify_recipient =    FALSE,
1382     .fail_verify_sender =       FALSE,
1383     .gid_set =                  FALSE,
1384     .initgroups =               FALSE,
1385     .log_as_local =             TRUE_UNSET,
1386     .more =                     TRUE,
1387     .pass_on_timeout =          FALSE,
1388     .prefix_optional =          FALSE,
1389     .repeat_use =               TRUE,
1390     .retry_use_local_part =     TRUE_UNSET,
1391     .same_domain_copy_routing = FALSE,
1392     .self_rewrite =             FALSE,
1393     .set =                      NULL,
1394     .suffix_optional =          FALSE,
1395     .verify_only =              FALSE,
1396     .verify_recipient =         TRUE,
1397     .verify_sender =            TRUE,
1398     .uid_set =                  FALSE,
1399     .unseen =                   FALSE,
1400     .dsn_lasthop =              FALSE,
1401
1402     .self_code =                self_freeze,
1403     .uid =                      (uid_t)(-1),
1404     .gid =                      (gid_t)(-1),
1405
1406     .fallback_hostlist =        NULL,
1407     .transport =                NULL,
1408     .pass_router =              NULL,
1409     .redirect_router =          NULL,
1410
1411     .dnssec =                   { .request= US"*", .require=NULL },
1412 };
1413
1414 uschar *router_name            = NULL;
1415 tree_node *router_var          = NULL;
1416
1417 ip_address_item *running_interfaces = NULL;
1418
1419 /* This is a weird one. The following string gets patched in the binary by the
1420 script that sets up a copy of Exim for running in the test harness. It seems
1421 that compilers are now clever, and share constant strings if they can.
1422 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1423 make use of the end of this string in order to save space. So the patching then
1424 wrecks this. We defeat this optimization by adding some additional characters
1425 onto the end of the string. */
1426
1427 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1428
1429 int     runrc                  = 0;
1430
1431 uschar *search_error_message   = NULL;
1432 uschar *self_hostname          = NULL;
1433 uschar *sender_address         = NULL;
1434 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1435 uschar *sender_address_data    = NULL;
1436 uschar *sender_address_unrewritten = NULL;
1437 uschar *sender_data            = NULL;
1438 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1439 uschar *sender_fullhost        = NULL;
1440 uschar *sender_helo_name       = NULL;
1441 uschar **sender_host_aliases   = &no_aliases;
1442 uschar *sender_host_address    = NULL;
1443 uschar *sender_host_authenticated = NULL;
1444 uschar *sender_host_auth_pubname  = NULL;
1445 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1446 uschar *sender_host_name       = NULL;
1447 int     sender_host_port       = 0;
1448 uschar *sender_ident           = NULL;
1449 uschar *sender_rate            = NULL;
1450 uschar *sender_rate_limit      = NULL;
1451 uschar *sender_rate_period     = NULL;
1452 uschar *sender_rcvhost         = NULL;
1453 uschar *sender_unqualified_hosts = NULL;
1454 uschar *sender_verify_failure = NULL;
1455 address_item *sender_verified_list  = NULL;
1456 address_item *sender_verified_failed = NULL;
1457 int     sender_verified_rc     = -1;
1458 uschar *sending_ip_address     = NULL;
1459 int     sending_port           = -1;
1460 SIGNAL_BOOL sigalrm_seen       = FALSE;
1461 const uschar *sigalarm_setter  = NULL;
1462 uschar **sighup_argv           = NULL;
1463 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1464 int     smtp_accept_count      = 0;
1465 int     smtp_accept_max        = 20;
1466 int     smtp_accept_max_nonmail= 10;
1467 uschar *smtp_accept_max_nonmail_hosts = US"*";
1468 uschar *smtp_accept_max_per_connection = US"1000";
1469 uschar *smtp_accept_max_per_host = NULL;
1470 int     smtp_accept_queue      = 0;
1471 int     smtp_accept_queue_per_connection = 10;
1472 int     smtp_accept_reserve    = 0;
1473 uschar *smtp_active_hostname   = NULL;
1474 int     smtp_backlog_monitor   = 0;
1475 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1476                              "Exim $version_number $tod_full"
1477                              "\0<---------------Space to patch smtp_banner->";
1478 int     smtp_ch_index          = 0;
1479 uschar *smtp_cmd_argument      = NULL;
1480 uschar *smtp_cmd_buffer        = NULL;
1481 struct timeval smtp_connection_start  = {0,0};
1482 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1483 int     smtp_connect_backlog   = 20;
1484 double  smtp_delay_mail        = 0.0;
1485 double  smtp_delay_rcpt        = 0.0;
1486 FILE   *smtp_in                = NULL;
1487 int     smtp_listen_backlog    = 0;
1488 int     smtp_load_reserve      = -1;
1489 int     smtp_mailcmd_count     = 0;
1490 int     smtp_mailcmd_max       = -1;
1491 FILE   *smtp_out               = NULL;
1492 uschar *smtp_etrn_command      = NULL;
1493 int     smtp_max_synprot_errors= 3;
1494 int     smtp_max_unknown_commands = 3;
1495 uschar *smtp_notquit_reason    = NULL;
1496 unsigned smtp_peer_options     = 0;
1497 unsigned smtp_peer_options_wrap= 0;
1498 uschar *smtp_ratelimit_hosts   = NULL;
1499 uschar *smtp_ratelimit_mail    = NULL;
1500 uschar *smtp_ratelimit_rcpt    = NULL;
1501 uschar *smtp_read_error        = US"";
1502 int     smtp_receive_timeout   = 5*60;
1503 uschar *smtp_receive_timeout_s = NULL;
1504 uschar *smtp_reserve_hosts     = NULL;
1505 int     smtp_rlm_base          = 0;
1506 double  smtp_rlm_factor        = 0.0;
1507 int     smtp_rlm_limit         = 0;
1508 int     smtp_rlm_threshold     = INT_MAX;
1509 int     smtp_rlr_base          = 0;
1510 double  smtp_rlr_factor        = 0.0;
1511 int     smtp_rlr_limit         = 0;
1512 int     smtp_rlr_threshold     = INT_MAX;
1513 #ifdef SUPPORT_I18N
1514 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1515 #endif
1516
1517 #ifdef WITH_CONTENT_SCAN
1518 uschar *spamd_address          = US"127.0.0.1 783";
1519 uschar *spam_bar               = NULL;
1520 uschar *spam_report            = NULL;
1521 uschar *spam_action            = NULL;
1522 uschar *spam_score             = NULL;
1523 uschar *spam_score_int         = NULL;
1524 #endif
1525 #ifdef SUPPORT_SPF
1526 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1527 uschar *spf_header_comment     = NULL;
1528 uschar *spf_received           = NULL;
1529 uschar *spf_result             = NULL;
1530 uschar *spf_smtp_comment       = NULL;
1531 uschar *spf_smtp_comment_template
1532                     /* Used to be: "Please%_see%_http://www.open-spf.org/Why?id=%{S}&ip=%{C}&receiver=%{R}" */
1533                                = US"Please%_see%_http://www.open-spf.org/Why";
1534
1535 #endif
1536
1537 FILE   *spool_data_file        = NULL;
1538 uschar *spool_directory        = US SPOOL_DIRECTORY
1539                            "\0<--------------Space to patch spool_directory->";
1540 #ifdef SUPPORT_SRS
1541 uschar *srs_recipient          = NULL;
1542 #endif
1543 int     string_datestamp_offset= -1;
1544 int     string_datestamp_length= 0;
1545 int     string_datestamp_type  = -1;
1546 const uschar *submission_domain = NULL;
1547 const uschar *submission_name  = NULL;
1548 int     syslog_facility        = LOG_MAIL;
1549 uschar *syslog_processname     = US"exim";
1550 uschar *system_filter          = NULL;
1551
1552 uschar *system_filter_directory_transport = NULL;
1553 uschar *system_filter_file_transport = NULL;
1554 uschar *system_filter_pipe_transport = NULL;
1555 uschar *system_filter_reply_transport = NULL;
1556
1557 gid_t   system_filter_gid      = 0;
1558 uid_t   system_filter_uid      = (uid_t)-1;
1559
1560 blob    tcp_fastopen_nodata    = { .data = NULL, .len = 0 };
1561 tfo_state_t tcp_out_fastopen   = TFO_NOT_USED;
1562 #ifdef USE_TCP_WRAPPERS
1563 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1564 #endif
1565 int     test_harness_load_avg  = 0;
1566 int     thismessage_size_limit = 0;
1567 int     timeout_frozen_after   = 0;
1568 #ifdef MEASURE_TIMING
1569 struct timeval timestamp_startup;
1570 #endif
1571
1572 transport_instance  *transports = NULL;
1573
1574 transport_instance  transport_defaults = {
1575     /* All non-mentioned elements zero/NULL/FALSE */
1576     .batch_max =                1,
1577     .multi_domain =             TRUE,
1578     .max_addresses =            100,
1579     .connection_max_messages =  500,
1580     .uid =                      (uid_t)(-1),
1581     .gid =                      (gid_t)(-1),
1582     .filter_timeout =           300,
1583     .retry_use_local_part =     TRUE_UNSET,     /* retry_use_local_part: BOOL, but set neither
1584                                                  1 nor 0 so can detect unset */
1585 };
1586
1587 int     transport_count;
1588 uschar *transport_name          = NULL;
1589 int     transport_newlines;
1590 const uschar **transport_filter_argv  = NULL;
1591 int     transport_filter_timeout;
1592 int     transport_write_timeout= 0;
1593
1594 tree_node  *tree_dns_fails     = NULL;
1595 tree_node  *tree_duplicates    = NULL;
1596 tree_node  *tree_nonrecipients = NULL;
1597 tree_node  *tree_unusable      = NULL;
1598
1599 gid_t  *trusted_groups         = NULL;
1600 uid_t  *trusted_users          = NULL;
1601 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1602
1603 uschar *unknown_login          = NULL;
1604 uschar *unknown_username       = NULL;
1605 uschar *untrusted_set_sender   = NULL;
1606
1607 /*  A regex for matching a "From_" line in an incoming message, in the form
1608
1609     From ph10 Fri Jan  5 12:35 GMT 1996
1610
1611 which  the "mail" commands send to the MTA (undocumented, of course), or in
1612 the  form
1613
1614     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1615
1616 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1617 Because  of variations in time formats, just match up to the minutes. That
1618 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1619 so  just require one digit for hours and minutes. The weekday is also absent
1620 in  some forms. */
1621
1622 uschar *uucp_from_pattern      = US
1623    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1624    "(?:"                                          /* Non-extracting bracket */
1625    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1626    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1627    ")"                                            /* End alternation */
1628    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1629
1630 uschar *uucp_from_sender       = US"$1";
1631
1632 uschar *verify_mode            = NULL;
1633 uschar *version_copyright      =
1634  US"Copyright (c) University of Cambridge, 1995 - 2018\n"
1635    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2020";
1636 uschar *version_date           = US"?";
1637 uschar *version_cnumber        = US"????";
1638 uschar *version_string         = US"?";
1639
1640 uschar *warn_message_file      = NULL;
1641 int     warning_count          = 0;
1642 uschar *warnmsg_delay          = NULL;
1643 uschar *warnmsg_recipients     = NULL;
1644
1645
1646 /*  End of globals.c */