src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 #endif
  53
  54 #ifdef EXPAND_DLFUNC
  55 tree_node *dlobj_anchor        = NULL;
  56 #endif
  57
  58 #ifdef LOOKUP_IBASE
  59 uschar *ibase_servers          = NULL;
  60 #endif
  61
  62 #ifdef LOOKUP_LDAP
  63 uschar *eldap_ca_cert_dir      = NULL;
  64 uschar *eldap_ca_cert_file     = NULL;
  65 uschar *eldap_cert_file        = NULL;
  66 uschar *eldap_cert_key         = NULL;
  67 uschar *eldap_cipher_suite     = NULL;
  68 uschar *eldap_default_servers  = NULL;
  69 uschar *eldap_require_cert     = NULL;
  70 int     eldap_version          = -1;
  71 BOOL    eldap_start_tls        = FALSE;
  72 #endif
  73
  74 #ifdef LOOKUP_MYSQL
  75 uschar *mysql_servers          = NULL;
  76 #endif
  77
  78 #ifdef LOOKUP_ORACLE
  79 uschar *oracle_servers         = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_PGSQL
  83 uschar *pgsql_servers          = NULL;
  84 #endif
  85
  86 #ifdef EXPERIMENTAL_REDIS
  87 uschar *redis_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 tls_support tls_in = {
 103  -1,   /* tls_active */
 104  0,    /* tls_bits */
 105  FALSE,/* tls_certificate_verified */
 106 #ifdef EXPERIMENTAL_DANE
 107  FALSE,/* dane_verified */
 108  0,    /* tlsa_usage */
 109 #endif
 110  NULL, /* tls_cipher */
 111  FALSE,/* tls_on_connect */
 112  NULL, /* tls_on_connect_ports */
 113  NULL, /* tls_ourcert */
 114  NULL, /* tls_peercert */
 115  NULL, /* tls_peerdn */
 116  NULL, /* tls_sni */
 117  0     /* tls_ocsp */
 118 };
 119 tls_support tls_out = {
 120  -1,   /* tls_active */
 121  0,    /* tls_bits */
 122  FALSE,/* tls_certificate_verified */
 123 #ifdef EXPERIMENTAL_DANE
 124  FALSE,/* dane_verified */
 125  0,    /* tlsa_usage */
 126 #endif
 127  NULL, /* tls_cipher */
 128  FALSE,/* tls_on_connect */
 129  NULL, /* tls_on_connect_ports */
 130  NULL, /* tls_ourcert */
 131  NULL, /* tls_peercert */
 132  NULL, /* tls_peerdn */
 133  NULL, /* tls_sni */
 134  0     /* tls_ocsp */
 135 };
 136
 137 uschar *dsn_envid              = NULL;
 138 int     dsn_ret                = 0;
 139 const pcre  *regex_DSN         = NULL;
 140 BOOL    smtp_use_dsn           = FALSE;
 141 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *gnutls_require_mac     = NULL;
 147 uschar *gnutls_require_kx      = NULL;
 148 uschar *gnutls_require_proto   = NULL;
 149 uschar *openssl_options        = NULL;
 150 const pcre *regex_STARTTLS     = NULL;
 151 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 152 uschar *tls_certificate        = NULL;
 153 uschar *tls_crl                = NULL;
 154 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 155 that's the interop problem which has been observed: GnuTLS suggesting a higher
 156 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 157 int     tls_dh_max_bits        = 2236;
 158 uschar *tls_dhparam            = NULL;
 159 uschar *tls_eccurve            = US"prime256v1";
 160 #ifndef DISABLE_OCSP
 161 uschar *tls_ocsp_file          = NULL;
 162 #endif
 163 BOOL    tls_offered            = FALSE;
 164 uschar *tls_privatekey         = NULL;
 165 BOOL    tls_remember_esmtp     = FALSE;
 166 uschar *tls_require_ciphers    = NULL;
 167 uschar *tls_try_verify_hosts   = NULL;
 168 uschar *tls_verify_certificates= US"system";
 169 uschar *tls_verify_hosts       = NULL;
 170 #endif
 171
 172 #ifndef DISABLE_PRDR
 173 /* Per Recipient Data Response variables */
 174 BOOL    prdr_enable            = FALSE;
 175 BOOL    prdr_requested         = FALSE;
 176 const pcre *regex_PRDR         = NULL;
 177 #endif
 178
 179 #ifdef EXPERIMENTAL_INTERNATIONAL
 180 const pcre *regex_UTF8         = NULL;
 181 #endif
 182
 183 /* Input-reading functions for messages, so we can use special ones for
 184 incoming TCP/IP. The defaults use stdin. We never need these for any
 185 stand-alone tests. */
 186
 187 #ifndef STAND_ALONE
 188 int (*receive_getc)(void)      = stdin_getc;
 189 int (*receive_ungetc)(int)     = stdin_ungetc;
 190 int (*receive_feof)(void)      = stdin_feof;
 191 int (*receive_ferror)(void)    = stdin_ferror;
 192 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 193 #endif
 194
 195
 196 /* List of per-address expansion variables for clearing and saving/restoring
 197 when verifying one address while routing/verifying another. We have to have
 198 the size explicit, because it is referenced from more than one module. */
 199
 200 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 201   CUSS &deliver_address_data,
 202   CUSS &deliver_domain,
 203   CUSS &deliver_domain_data,
 204   CUSS &deliver_domain_orig,
 205   CUSS &deliver_domain_parent,
 206   CUSS &deliver_localpart,
 207   CUSS &deliver_localpart_data,
 208   CUSS &deliver_localpart_orig,
 209   CUSS &deliver_localpart_parent,
 210   CUSS &deliver_localpart_prefix,
 211   CUSS &deliver_localpart_suffix,
 212   CUSS (uschar **)(&deliver_recipients),
 213   CUSS &deliver_host,
 214   CUSS &deliver_home,
 215   CUSS &address_file,
 216   CUSS &address_pipe,
 217   CUSS &self_hostname,
 218   NULL };
 219
 220 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 221
 222 /* General global variables */
 223
 224 header_line *acl_added_headers = NULL;
 225 tree_node *acl_anchor          = NULL;
 226 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 227                                   NULL, NULL, NULL, NULL};
 228 int     acl_narg               = 0;
 229
 230 uschar *acl_not_smtp           = NULL;
 231 #ifdef WITH_CONTENT_SCAN
 232 uschar *acl_not_smtp_mime      = NULL;
 233 #endif
 234 uschar *acl_not_smtp_start     = NULL;
 235 uschar *acl_removed_headers    = NULL;
 236 uschar *acl_smtp_auth          = NULL;
 237 uschar *acl_smtp_connect       = NULL;
 238 uschar *acl_smtp_data          = NULL;
 239 #ifndef DISABLE_PRDR
 240 uschar *acl_smtp_data_prdr     = US"accept";
 241 #endif
 242 #ifndef DISABLE_DKIM
 243 uschar *acl_smtp_dkim          = NULL;
 244 #endif
 245 uschar *acl_smtp_etrn          = NULL;
 246 uschar *acl_smtp_expn          = NULL;
 247 uschar *acl_smtp_helo          = NULL;
 248 uschar *acl_smtp_mail          = NULL;
 249 uschar *acl_smtp_mailauth      = NULL;
 250 #ifdef WITH_CONTENT_SCAN
 251 uschar *acl_smtp_mime          = NULL;
 252 #endif
 253 uschar *acl_smtp_notquit       = NULL;
 254 uschar *acl_smtp_predata       = NULL;
 255 uschar *acl_smtp_quit          = NULL;
 256 uschar *acl_smtp_rcpt          = NULL;
 257 uschar *acl_smtp_starttls      = NULL;
 258 uschar *acl_smtp_vrfy          = NULL;
 259
 260 BOOL    acl_temp_details       = FALSE;
 261 tree_node *acl_var_c           = NULL;
 262 tree_node *acl_var_m           = NULL;
 263 uschar *acl_verify_message     = NULL;
 264 string_item *acl_warn_logged   = NULL;
 265
 266 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 267 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 268
 269 uschar *acl_wherenames[]       = { US"RCPT",
 270                                    US"MAIL",
 271                                    US"PREDATA",
 272                                    US"MIME",
 273                                    US"DKIM",
 274                                    US"DATA",
 275 #ifndef DISABLE_PRDR
 276                                    US"PRDR",
 277 #endif
 278                                    US"non-SMTP",
 279                                    US"AUTH",
 280                                    US"connection",
 281                                    US"ETRN",
 282                                    US"EXPN",
 283                                    US"EHLO or HELO",
 284                                    US"MAILAUTH",
 285                                    US"non-SMTP-start",
 286                                    US"NOTQUIT",
 287                                    US"QUIT",
 288                                    US"STARTTLS",
 289                                    US"VRFY",
 290                                    US"delivery",
 291                                    US"unknown"
 292                                  };
 293
 294 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 295                                    US"550",     /* MAIL */
 296                                    US"550",     /* PREDATA */
 297                                    US"550",     /* MIME */
 298                                    US"550",     /* DKIM */
 299                                    US"550",     /* DATA */
 300 #ifndef DISABLE_PRDR
 301                                    US"550",    /* RCPT PRDR */
 302 #endif
 303                                    US"0",       /* not SMTP; not relevant */
 304                                    US"503",     /* AUTH */
 305                                    US"550",     /* connect */
 306                                    US"458",     /* ETRN */
 307                                    US"550",     /* EXPN */
 308                                    US"550",     /* HELO/EHLO */
 309                                    US"0",       /* MAILAUTH; not relevant */
 310                                    US"0",       /* not SMTP; not relevant */
 311                                    US"0",       /* NOTQUIT; not relevant */
 312                                    US"0",       /* QUIT; not relevant */
 313                                    US"550",     /* STARTTLS */
 314                                    US"252",     /* VRFY */
 315                                    US"0",       /* delivery; not relevant */
 316                                    US"0"        /* unknown; not relevant */
 317                                  };
 318
 319 BOOL    active_local_from_check = FALSE;
 320 BOOL    active_local_sender_retain = FALSE;
 321 int     body_8bitmime = 0;
 322 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 323 address_item  *addr_duplicate  = NULL;
 324
 325 address_item address_defaults = {
 326   NULL,                 /* next */
 327   NULL,                 /* parent */
 328   NULL,                 /* first */
 329   NULL,                 /* dupof */
 330   NULL,                 /* start_router */
 331   NULL,                 /* router */
 332   NULL,                 /* transport */
 333   NULL,                 /* host_list */
 334   NULL,                 /* host_used */
 335   NULL,                 /* fallback_hosts */
 336   NULL,                 /* reply */
 337   NULL,                 /* retries */
 338   NULL,                 /* address */
 339   NULL,                 /* unique */
 340   NULL,                 /* cc_local_part */
 341   NULL,                 /* lc_local_part */
 342   NULL,                 /* local_part */
 343   NULL,                 /* prefix */
 344   NULL,                 /* suffix */
 345   NULL,                 /* domain */
 346   NULL,                 /* address_retry_key */
 347   NULL,                 /* domain_retry_key */
 348   NULL,                 /* current_dir */
 349   NULL,                 /* home_dir */
 350   NULL,                 /* message */
 351   NULL,                 /* user_message */
 352   NULL,                 /* onetime_parent */
 353   NULL,                 /* pipe_expandn */
 354   NULL,                 /* return_filename */
 355   NULL,                 /* self_hostname */
 356   NULL,                 /* shadow_message */
 357   #ifdef SUPPORT_TLS
 358   NULL,                 /* cipher */
 359   NULL,                 /* ourcert */
 360   NULL,                 /* peercert */
 361   NULL,                 /* peerdn */
 362   OCSP_NOT_REQ,         /* ocsp */
 363   #endif
 364   NULL,                 /* authenticator */
 365   NULL,                 /* auth_id */
 366   NULL,                 /* auth_sndr */
 367   NULL,                 /* dsn_orcpt */
 368   0,                    /* dsn_flags */
 369   0,                    /* dsn_aware */
 370   (uid_t)(-1),          /* uid */
 371   (gid_t)(-1),          /* gid */
 372   0,                    /* flags */
 373   { 0 },                /* domain_cache - any larger array should be zeroed */
 374   { 0 },                /* localpart_cache - ditto */
 375   -1,                   /* mode */
 376   0,                    /* more_errno */
 377   ERRNO_UNKNOWNERROR,   /* basic_errno */
 378   0,                    /* child_count */
 379   -1,                   /* return_file */
 380   SPECIAL_NONE,         /* special_action */
 381   DEFER,                /* transport_return */
 382   {                     /* fields that are propagated to children */
 383     NULL,               /* address_data */
 384     NULL,               /* domain_data */
 385     NULL,               /* localpart_data */
 386     NULL,               /* errors_address */
 387     NULL,               /* extra_headers */
 388     NULL,               /* remove_headers */
 389 #ifdef EXPERIMENTAL_SRS
 390     NULL,               /* srs_sender */
 391 #endif
 392 #ifdef EXPERIMENTAL_INTERNATIONAL
 393     FALSE,              /* utf8 */
 394 #endif
 395   }
 396 };
 397
 398 uschar *address_file           = NULL;
 399 uschar *address_pipe           = NULL;
 400 BOOL    address_test_mode      = FALSE;
 401 tree_node *addresslist_anchor  = NULL;
 402 int     addresslist_count      = 0;
 403 gid_t  *admin_groups           = NULL;
 404 BOOL    admin_user             = FALSE;
 405 BOOL    allow_auth_unadvertised= FALSE;
 406 BOOL    allow_domain_literals  = FALSE;
 407 BOOL    allow_mx_to_ip         = FALSE;
 408 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 409 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 410 BOOL    allow_utf8_domains     = FALSE;
 411 uschar *authenticated_fail_id  = NULL;
 412 uschar *authenticated_id       = NULL;
 413 uschar *authenticated_sender   = NULL;
 414 BOOL    authentication_failed  = FALSE;
 415 auth_instance  *auths          = NULL;
 416 uschar *auth_advertise_hosts   = US"*";
 417 auth_instance auth_defaults    = {
 418     NULL,                      /* chain pointer */
 419     NULL,                      /* name */
 420     NULL,                      /* info */
 421     NULL,                      /* private options block pointer */
 422     NULL,                      /* driver_name */
 423     NULL,                      /* advertise_condition */
 424     NULL,                      /* client_condition */
 425     NULL,                      /* public_name */
 426     NULL,                      /* set_id */
 427     NULL,                      /* set_client_id */
 428     NULL,                      /* server_mail_auth_condition */
 429     NULL,                      /* server_debug_string */
 430     NULL,                      /* server_condition */
 431     FALSE,                     /* client */
 432     FALSE,                     /* server */
 433     FALSE                      /* advertised */
 434 };
 435
 436 uschar *auth_defer_msg         = US"reason not recorded";
 437 uschar *auth_defer_user_msg    = US"";
 438 uschar *auth_vars[AUTH_VARS];
 439 int     auto_thaw              = 0;
 440 #ifdef WITH_CONTENT_SCAN
 441 BOOL    av_failed              = FALSE;
 442 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 443 #endif
 444
 445 BOOL    background_daemon      = TRUE;
 446
 447 #if BASE_62 == 62
 448 uschar *base62_chars=
 449     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 450 #else
 451 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 452 #endif
 453
 454 uschar *bi_command             = NULL;
 455 uschar *big_buffer             = NULL;
 456 int     big_buffer_size        = BIG_BUFFER_SIZE;
 457 #ifdef EXPERIMENTAL_BRIGHTMAIL
 458 uschar *bmi_alt_location       = NULL;
 459 uschar *bmi_base64_tracker_verdict = NULL;
 460 uschar *bmi_base64_verdict     = NULL;
 461 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 462 int     bmi_deliver            = 1;
 463 int     bmi_run                = 0;
 464 uschar *bmi_verdicts           = NULL;
 465 #endif
 466 int     body_linecount         = 0;
 467 int     body_zerocount         = 0;
 468 uschar *bounce_message_file    = NULL;
 469 uschar *bounce_message_text    = NULL;
 470 uschar *bounce_recipient       = NULL;
 471 BOOL    bounce_return_body     = TRUE;
 472 BOOL    bounce_return_message  = TRUE;
 473 int     bounce_return_size_limit = 100*1024;
 474 uschar *bounce_sender_authentication = NULL;
 475 int     bsmtp_transaction_linecount = 0;
 476
 477 int     callout_cache_domain_positive_expire = 7*24*60*60;
 478 int     callout_cache_domain_negative_expire = 3*60*60;
 479 int     callout_cache_positive_expire = 24*60*60;
 480 int     callout_cache_negative_expire = 2*60*60;
 481 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 482 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 483 int     check_log_inodes       = 0;
 484 int     check_log_space        = 0;
 485 BOOL    check_rfc2047_length   = TRUE;
 486 int     check_spool_inodes     = 0;
 487 int     check_spool_space      = 0;
 488 uschar  *client_authenticator  = NULL;
 489 uschar  *client_authenticated_id = NULL;
 490 uschar  *client_authenticated_sender = NULL;
 491 int     clmacro_count          = 0;
 492 uschar *clmacros[MAX_CLMACROS];
 493 BOOL    config_changed         = FALSE;
 494 FILE   *config_file            = NULL;
 495 uschar *config_filename        = NULL;
 496 int     config_lineno          = 0;
 497 #ifdef CONFIGURE_GROUP
 498 gid_t   config_gid             = CONFIGURE_GROUP;
 499 #endif
 500 uschar *config_main_filelist   = US CONFIGURE_FILE
 501                          "\0<-----------Space to patch configure_filename->";
 502 uschar *config_main_filename   = NULL;
 503 uschar *config_main_directory  = NULL;
 504
 505 #ifdef CONFIGURE_OWNER
 506 uid_t   config_uid             = CONFIGURE_OWNER;
 507 #endif
 508
 509 int     connection_max_messages= -1;
 510 uschar *continue_hostname      = NULL;
 511 uschar *continue_host_address  = NULL;
 512 BOOL    continue_more          = FALSE;
 513 int     continue_sequence      = 1;
 514 uschar *continue_transport     = NULL;
 515
 516 uschar *csa_status             = NULL;
 517 cut_t   cutthrough = {
 518   FALSE,                                /* delivery: when to attempt */
 519   -1,                                   /* fd: open connection */
 520   0,                                    /* nrcpt: number of addresses */
 521 };
 522
 523 BOOL    daemon_listen          = FALSE;
 524 uschar *daemon_smtp_port       = US"smtp";
 525 int     daemon_startup_retries = 9;
 526 int     daemon_startup_sleep   = 30;
 527
 528 #ifdef EXPERIMENTAL_DCC
 529 BOOL    dcc_direct_add_header  = FALSE;
 530 uschar *dcc_header             = NULL;
 531 uschar *dcc_result             = NULL;
 532 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 533 uschar *dccifd_options         = US"header";
 534 #endif
 535
 536 BOOL    debug_daemon           = FALSE;
 537 int     debug_fd               = -1;
 538 FILE   *debug_file             = NULL;
 539 bit_table debug_options[]      = {
 540   { US"acl",            D_acl },
 541   { US"all",            D_all },
 542   { US"auth",           D_auth },
 543   { US"deliver",        D_deliver },
 544   { US"dns",            D_dns },
 545   { US"dnsbl",          D_dnsbl },
 546   { US"exec",           D_exec },
 547   { US"expand",         D_expand },
 548   { US"filter",         D_filter },
 549   { US"hints_lookup",   D_hints_lookup },
 550   { US"host_lookup",    D_host_lookup },
 551   { US"ident",          D_ident },
 552   { US"interface",      D_interface },
 553   { US"lists",          D_lists },
 554   { US"load",           D_load },
 555   { US"local_scan",     D_local_scan },
 556   { US"lookup",         D_lookup },
 557   { US"memory",         D_memory },
 558   { US"pid",            D_pid },
 559   { US"process_info",   D_process_info },
 560   { US"queue_run",      D_queue_run },
 561   { US"receive",        D_receive },
 562   { US"resolver",       D_resolver },
 563   { US"retry",          D_retry },
 564   { US"rewrite",        D_rewrite },
 565   { US"route",          D_route },
 566   { US"timestamp",      D_timestamp },
 567   { US"tls",            D_tls },
 568   { US"transport",      D_transport },
 569   { US"uid",            D_uid },
 570   { US"verify",         D_verify }
 571 };
 572 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 573 unsigned int debug_selector    = 0;
 574 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 575 uschar *delay_warning_condition=
 576   US"${if or {"
 577             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 578             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 579             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 580             "} {no}{yes}}";
 581 BOOL    delivery_date_remove   = TRUE;
 582 uschar *deliver_address_data   = NULL;
 583 int     deliver_datafile       = -1;
 584 const uschar *deliver_domain   = NULL;
 585 uschar *deliver_domain_data    = NULL;
 586 const uschar *deliver_domain_orig = NULL;
 587 const uschar *deliver_domain_parent = NULL;
 588 BOOL    deliver_drop_privilege = FALSE;
 589 BOOL    deliver_firsttime      = FALSE;
 590 BOOL    deliver_force          = FALSE;
 591 BOOL    deliver_freeze         = FALSE;
 592 time_t  deliver_frozen_at      = 0;
 593 uschar *deliver_home           = NULL;
 594 const uschar *deliver_host     = NULL;
 595 const uschar *deliver_host_address = NULL;
 596 int     deliver_host_port      = 0;
 597 uschar *deliver_in_buffer      = NULL;
 598 ino_t   deliver_inode          = 0;
 599 uschar *deliver_localpart      = NULL;
 600 uschar *deliver_localpart_data = NULL;
 601 uschar *deliver_localpart_orig = NULL;
 602 uschar *deliver_localpart_parent = NULL;
 603 uschar *deliver_localpart_prefix = NULL;
 604 uschar *deliver_localpart_suffix = NULL;
 605 BOOL    deliver_force_thaw     = FALSE;
 606 BOOL    deliver_manual_thaw    = FALSE;
 607 uschar *deliver_out_buffer     = NULL;
 608 int     deliver_queue_load_max = -1;
 609 address_item  *deliver_recipients = NULL;
 610 uschar *deliver_selectstring   = NULL;
 611 BOOL    deliver_selectstring_regex = FALSE;
 612 uschar *deliver_selectstring_sender = NULL;
 613 BOOL    deliver_selectstring_sender_regex = FALSE;
 614 #ifdef WITH_OLD_DEMIME
 615 int     demime_errorlevel      = 0;
 616 int     demime_ok              = 0;
 617 uschar *demime_reason          = NULL;
 618 #endif
 619 BOOL    disable_callout_flush  = FALSE;
 620 BOOL    disable_delay_flush    = FALSE;
 621 #ifdef ENABLE_DISABLE_FSYNC
 622 BOOL    disable_fsync          = FALSE;
 623 #endif
 624 BOOL    disable_ipv6           = FALSE;
 625 BOOL    disable_logging        = FALSE;
 626
 627 #ifndef DISABLE_DKIM
 628 uschar *dkim_cur_signer          = NULL;
 629 uschar *dkim_signers             = NULL;
 630 uschar *dkim_signing_domain      = NULL;
 631 uschar *dkim_signing_selector    = NULL;
 632 uschar *dkim_verify_signers      = US"$dkim_signers";
 633 BOOL    dkim_collect_input       = FALSE;
 634 BOOL    dkim_disable_verify      = FALSE;
 635 #endif
 636 #ifdef EXPERIMENTAL_DMARC
 637 BOOL    dmarc_has_been_checked  = FALSE;
 638 uschar *dmarc_ar_header         = NULL;
 639 uschar *dmarc_domain_policy     = NULL;
 640 uschar *dmarc_forensic_sender   = NULL;
 641 uschar *dmarc_history_file      = NULL;
 642 uschar *dmarc_status            = NULL;
 643 uschar *dmarc_status_text       = NULL;
 644 uschar *dmarc_tld_file          = NULL;
 645 uschar *dmarc_used_domain       = NULL;
 646 BOOL    dmarc_disable_verify    = FALSE;
 647 BOOL    dmarc_enable_forensic   = FALSE;
 648 #endif
 649
 650 uschar *dns_again_means_nonexist = NULL;
 651 int     dns_csa_search_limit   = 5;
 652 BOOL    dns_csa_use_reverse    = TRUE;
 653 #ifdef EXPERIMENTAL_DANE
 654 int     dns_dane_ok            = -1;
 655 #endif
 656 uschar *dns_ipv4_lookup        = NULL;
 657 int     dns_retrans            = 0;
 658 int     dns_retry              = 0;
 659 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 660 int     dns_use_edns0          = -1; /* <0 = not coerced */
 661 uschar *dnslist_domain         = NULL;
 662 uschar *dnslist_matched        = NULL;
 663 uschar *dnslist_text           = NULL;
 664 uschar *dnslist_value          = NULL;
 665 tree_node *domainlist_anchor   = NULL;
 666 int     domainlist_count       = 0;
 667 BOOL    dont_deliver           = FALSE;
 668 BOOL    dot_ends               = TRUE;
 669 BOOL    drop_cr                = FALSE;         /* No longer used */
 670 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 671
 672 BOOL    enable_dollar_recipients = FALSE;
 673 BOOL    envelope_to_remove     = TRUE;
 674 int     errno_quota            = ERRNO_QUOTA;
 675 uschar *errors_copy            = NULL;
 676 int     error_handling         = ERRORS_SENDER;
 677 uschar *errors_reply_to        = NULL;
 678 int     errors_sender_rc       = EXIT_FAILURE;
 679 #ifdef EXPERIMENTAL_EVENT
 680 uschar *event_action             = NULL;        /* expansion for delivery events */
 681 uschar *event_data               = NULL;        /* auxilary data variable for event */
 682 int     event_defer_errno        = 0;
 683 const uschar *event_name         = NULL;        /* event name variable */
 684 #endif
 685
 686
 687 gid_t   exim_gid               = EXIM_GID;
 688 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 689 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 690                         "\0<---------------Space to patch exim_path->";
 691 uid_t   exim_uid               = EXIM_UID;
 692 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 693 int     expand_forbid          = 0;
 694 int     expand_nlength[EXPAND_MAXN+1];
 695 int     expand_nmax            = -1;
 696 uschar *expand_nstring[EXPAND_MAXN+1];
 697 BOOL    expand_string_forcedfail = FALSE;
 698 uschar *expand_string_message;
 699 BOOL    extract_addresses_remove_arguments = TRUE;
 700 uschar *extra_local_interfaces = NULL;
 701
 702 int     fake_response          = OK;
 703 uschar *fake_response_text     = US"Your message has been rejected but is "
 704                                    "being kept for evaluation.\nIf it was a "
 705                                    "legitimate message, it may still be "
 706                                    "delivered to the target recipient(s).";
 707 int     filter_n[FILTER_VARIABLE_COUNT];
 708 BOOL    filter_running         = FALSE;
 709 int     filter_sn[FILTER_VARIABLE_COUNT];
 710 int     filter_test            = FTEST_NONE;
 711 uschar *filter_test_sfile      = NULL;
 712 uschar *filter_test_ufile      = NULL;
 713 uschar *filter_thisaddress     = NULL;
 714 int     finduser_retries       = 0;
 715 #ifdef WITH_OLD_DEMIME
 716 uschar *found_extension        = NULL;
 717 #endif
 718 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 719 uschar *freeze_tell            = NULL;
 720 uschar *freeze_tell_config     = NULL;
 721 uschar *fudged_queue_times     = US"";
 722
 723 uschar *gecos_name             = NULL;
 724 uschar *gecos_pattern          = NULL;
 725 rewrite_rule  *global_rewrite_rules = NULL;
 726
 727 uschar *headers_charset        = US HEADERS_CHARSET;
 728 int     header_insert_maxlen   = 64 * 1024;
 729 header_line  *header_last      = NULL;
 730 header_line  *header_list      = NULL;
 731 int     header_maxsize         = HEADER_MAXSIZE;
 732 int     header_line_maxsize    = 0;
 733
 734 header_name header_names[] = {
 735   { US"bcc",            3, TRUE,  htype_bcc },
 736   { US"cc",             2, TRUE,  htype_cc },
 737   { US"date",           4, TRUE,  htype_date },
 738   { US"delivery-date", 13, FALSE, htype_delivery_date },
 739   { US"envelope-to",   11, FALSE, htype_envelope_to },
 740   { US"from",           4, TRUE,  htype_from },
 741   { US"message-id",    10, TRUE,  htype_id },
 742   { US"received",       8, FALSE, htype_received },
 743   { US"reply-to",       8, FALSE, htype_reply_to },
 744   { US"return-path",   11, FALSE, htype_return_path },
 745   { US"sender",         6, TRUE,  htype_sender },
 746   { US"subject",        7, FALSE, htype_subject },
 747   { US"to",             2, TRUE,  htype_to }
 748 };
 749
 750 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 751
 752 BOOL    header_rewritten       = FALSE;
 753 uschar *helo_accept_junk_hosts = NULL;
 754 uschar *helo_allow_chars       = US"";
 755 uschar *helo_lookup_domains    = US"@ : @[]";
 756 uschar *helo_try_verify_hosts  = NULL;
 757 BOOL    helo_verified          = FALSE;
 758 BOOL    helo_verify_failed     = FALSE;
 759 uschar *helo_verify_hosts      = NULL;
 760 const uschar *hex_digits       = CUS"0123456789abcdef";
 761 uschar *hold_domains           = NULL;
 762 BOOL    host_checking          = FALSE;
 763 BOOL    host_checking_callout  = FALSE;
 764 uschar *host_data              = NULL;
 765 BOOL    host_find_failed_syntax= FALSE;
 766 uschar *host_lookup            = NULL;
 767 BOOL    host_lookup_deferred   = FALSE;
 768 BOOL    host_lookup_failed     = FALSE;
 769 uschar *host_lookup_order      = US"bydns:byaddr";
 770 uschar *host_lookup_msg        = US"";
 771 int     host_number            = 0;
 772 uschar *host_number_string     = NULL;
 773 uschar *host_reject_connection = NULL;
 774 tree_node *hostlist_anchor     = NULL;
 775 int     hostlist_count         = 0;
 776 uschar *hosts_treat_as_local   = NULL;
 777 uschar *hosts_connection_nolog = NULL;
 778
 779 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 780 BOOL    ignore_fromline_local  = FALSE;
 781 uschar *ignore_fromline_hosts  = NULL;
 782 BOOL    inetd_wait_mode        = FALSE;
 783 int     inetd_wait_timeout     = -1;
 784 uschar *interface_address      = NULL;
 785 int     interface_port         = -1;
 786 BOOL    is_inetd               = FALSE;
 787 uschar *iterate_item           = NULL;
 788
 789 int     journal_fd             = -1;
 790
 791 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 792
 793 uschar *eldap_dn               = NULL;
 794 int     load_average           = -2;
 795 BOOL    local_error_message    = FALSE;
 796 BOOL    local_from_check       = TRUE;
 797 uschar *local_from_prefix      = NULL;
 798 uschar *local_from_suffix      = NULL;
 799
 800 #if HAVE_IPV6
 801 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 802 #else
 803 uschar *local_interfaces       = US"0.0.0.0";
 804 #endif
 805
 806 uschar *local_scan_data        = NULL;
 807 int     local_scan_timeout     = 5*60;
 808 BOOL    local_sender_retain    = FALSE;
 809 gid_t   local_user_gid         = (gid_t)(-1);
 810 uid_t   local_user_uid         = (uid_t)(-1);
 811
 812 tree_node *localpartlist_anchor= NULL;
 813 int     localpartlist_count    = 0;
 814 uschar *log_buffer             = NULL;
 815 unsigned int log_extra_selector = LX_default;
 816 uschar *log_file_path          = US LOG_FILE_PATH
 817                            "\0<--------------Space to patch log_file_path->";
 818
 819 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 820 are the ones that get put into log_write_selector. They can be used in calls to
 821 log_write() to test for the bit. The options with LX_xxx identifiers have
 822 values greater than 0x80000000 and are put into log_extra_selector (without the
 823 top bit). They are never used in calls to log_write(), but are tested
 824 independently. This separation became necessary when the number of log
 825 selectors was getting close to filling a 32-bit word. */
 826
 827 /* Note that this list must be in alphabetical order. */
 828
 829 bit_table log_options[]        = {
 830   { US"8bitmime",                     LX_8bitmime },
 831   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 832   { US"address_rewrite",              L_address_rewrite },
 833   { US"all",                          L_all },
 834   { US"all_parents",                  L_all_parents },
 835   { US"arguments",                    LX_arguments },
 836   { US"connection_reject",            L_connection_reject },
 837   { US"delay_delivery",               L_delay_delivery },
 838   { US"deliver_time",                 LX_deliver_time },
 839   { US"delivery_size",                LX_delivery_size },
 840   { US"dnslist_defer",                L_dnslist_defer },
 841   { US"etrn",                         L_etrn },
 842   { US"host_lookup_failed",           L_host_lookup_failed },
 843   { US"ident_timeout",                LX_ident_timeout },
 844   { US"incoming_interface",           LX_incoming_interface },
 845   { US"incoming_port",                LX_incoming_port },
 846   { US"lost_incoming_connection",     L_lost_incoming_connection },
 847   { US"outgoing_port",                LX_outgoing_port },
 848   { US"pid",                          LX_pid },
 849 #ifdef EXPERIMENTAL_PROXY
 850   { US"proxy",                        LX_proxy },
 851 #endif
 852   { US"queue_run",                    L_queue_run },
 853   { US"queue_time",                   LX_queue_time },
 854   { US"queue_time_overall",           LX_queue_time_overall },
 855   { US"received_recipients",          LX_received_recipients },
 856   { US"received_sender",              LX_received_sender },
 857   { US"rejected_header",              LX_rejected_header },
 858   { US"rejected_headers",             LX_rejected_header },
 859   { US"retry_defer",                  L_retry_defer },
 860   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 861   { US"sender_on_delivery",           LX_sender_on_delivery },
 862   { US"sender_verify_fail",           LX_sender_verify_fail },
 863   { US"size_reject",                  L_size_reject },
 864   { US"skip_delivery",                L_skip_delivery },
 865   { US"smtp_confirmation",            LX_smtp_confirmation },
 866   { US"smtp_connection",              L_smtp_connection },
 867   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 868   { US"smtp_mailauth",                LX_smtp_mailauth },
 869   { US"smtp_no_mail",                 LX_smtp_no_mail },
 870   { US"smtp_protocol_error",          L_smtp_protocol_error },
 871   { US"smtp_syntax_error",            L_smtp_syntax_error },
 872   { US"subject",                      LX_subject },
 873   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 874   { US"tls_cipher",                   LX_tls_cipher },
 875   { US"tls_peerdn",                   LX_tls_peerdn },
 876   { US"tls_sni",                      LX_tls_sni },
 877   { US"unknown_in_list",              LX_unknown_in_list }
 878 };
 879
 880 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 881 int     log_reject_target      = 0;
 882 uschar *log_selector_string    = NULL;
 883 FILE   *log_stderr             = NULL;
 884 BOOL    log_testing_mode       = FALSE;
 885 BOOL    log_timezone           = FALSE;
 886 unsigned int log_write_selector= L_default;
 887 uschar *login_sender_address   = NULL;
 888 uschar *lookup_dnssec_authenticated = NULL;
 889 int     lookup_open_max        = 25;
 890 uschar *lookup_value           = NULL;
 891
 892 macro_item  *macros            = NULL;
 893 uschar *mailstore_basename     = NULL;
 894 #ifdef WITH_CONTENT_SCAN
 895 uschar *malware_name           = NULL;  /* Virus Name */
 896 #endif
 897 int     max_received_linelength= 0;
 898 int     max_username_length    = 0;
 899 int     message_age            = 0;
 900 uschar *message_body           = NULL;
 901 uschar *message_body_end       = NULL;
 902 BOOL    message_body_newlines  = FALSE;
 903 int     message_body_size      = 0;
 904 int     message_body_visible   = 500;
 905 int     message_ended          = END_NOTSTARTED;
 906 uschar *message_headers        = NULL;
 907 uschar *message_id;
 908 uschar *message_id_domain      = NULL;
 909 uschar *message_id_text        = NULL;
 910 struct timeval message_id_tv   = { 0, 0 };
 911 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 912 uschar *message_id_external;
 913 int     message_linecount      = 0;
 914 BOOL    message_logs           = TRUE;
 915 int     message_size           = 0;
 916 uschar *message_size_limit     = US"50M";
 917 #ifdef EXPERIMENTAL_INTERNATIONAL
 918 BOOL    message_smtputf8       = FALSE;
 919 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 920 #endif
 921 uschar  message_subdir[2]      = { 0, 0 };
 922 uschar *message_reference      = NULL;
 923
 924 /* MIME ACL expandables */
 925 #ifdef WITH_CONTENT_SCAN
 926 int     mime_anomaly_level     = 0;
 927 const uschar *mime_anomaly_text      = NULL;
 928 uschar *mime_boundary          = NULL;
 929 uschar *mime_charset           = NULL;
 930 uschar *mime_content_description = NULL;
 931 uschar *mime_content_disposition = NULL;
 932 uschar *mime_content_id        = NULL;
 933 unsigned int mime_content_size = 0;
 934 uschar *mime_content_transfer_encoding = NULL;
 935 uschar *mime_content_type      = NULL;
 936 uschar *mime_decoded_filename  = NULL;
 937 uschar *mime_filename          = NULL;
 938 int     mime_is_multipart      = 0;
 939 int     mime_is_coverletter    = 0;
 940 int     mime_is_rfc822         = 0;
 941 int     mime_part_count        = -1;
 942 #endif
 943
 944 BOOL    mua_wrapper            = FALSE;
 945
 946 uid_t  *never_users            = NULL;
 947 #ifdef WITH_CONTENT_SCAN
 948 BOOL    no_mbox_unspool        = FALSE;
 949 #endif
 950 BOOL    no_multiline_responses = FALSE;
 951
 952 uid_t   original_euid;
 953 gid_t   originator_gid;
 954 uschar *originator_login       = NULL;
 955 uschar *originator_name        = NULL;
 956 uid_t   originator_uid;
 957 uschar *override_local_interfaces = NULL;
 958 uschar *override_pid_file_path = NULL;
 959
 960 BOOL    parse_allow_group      = FALSE;
 961 BOOL    parse_found_group      = FALSE;
 962 uschar *percent_hack_domains   = NULL;
 963 uschar *pid_file_path          = US PID_FILE_PATH
 964                            "\0<--------------Space to patch pid_file_path->";
 965 BOOL    pipelining_enable      = TRUE;
 966 uschar *pipelining_advertise_hosts = US"*";
 967 BOOL    preserve_message_logs  = FALSE;
 968 uschar *primary_hostname       = NULL;
 969 BOOL    print_topbitchars      = FALSE;
 970 uschar  process_info[PROCESS_INFO_SIZE];
 971 int     process_info_len       = 0;
 972 uschar *process_log_path       = NULL;
 973 BOOL    prod_requires_admin    = TRUE;
 974
 975 #ifdef EXPERIMENTAL_PROXY
 976 uschar *proxy_host_address     = US"";
 977 int     proxy_host_port        = 0;
 978 uschar *proxy_required_hosts   = US"";
 979 BOOL    proxy_session          = FALSE;
 980 BOOL    proxy_session_failed   = FALSE;
 981 uschar *proxy_target_address   = US"";
 982 int     proxy_target_port      = 0;
 983 #endif
 984
 985 uschar *prvscheck_address      = NULL;
 986 uschar *prvscheck_keynum       = NULL;
 987 uschar *prvscheck_result       = NULL;
 988
 989
 990 const uschar *qualify_domain_recipient = NULL;
 991 uschar *qualify_domain_sender  = NULL;
 992 BOOL    queue_2stage           = FALSE;
 993 uschar *queue_domains          = NULL;
 994 int     queue_interval         = -1;
 995 BOOL    queue_list_requires_admin = TRUE;
 996 BOOL    queue_only             = FALSE;
 997 uschar *queue_only_file        = NULL;
 998 int     queue_only_load        = -1;
 999 BOOL    queue_only_load_latch  = TRUE;
1000 BOOL    queue_only_override    = TRUE;
1001 BOOL    queue_only_policy      = FALSE;
1002 BOOL    queue_run_first_delivery = FALSE;
1003 BOOL    queue_run_force        = FALSE;
1004 BOOL    queue_run_in_order     = FALSE;
1005 BOOL    queue_run_local        = FALSE;
1006 int     queue_run_max          = 5;
1007 pid_t   queue_run_pid          = (pid_t)0;
1008 int     queue_run_pipe         = -1;
1009 BOOL    queue_running          = FALSE;
1010 BOOL    queue_smtp             = FALSE;
1011 uschar *queue_smtp_domains     = NULL;
1012
1013 unsigned int random_seed       = 0;
1014 tree_node *ratelimiters_cmd    = NULL;
1015 tree_node *ratelimiters_conn   = NULL;
1016 tree_node *ratelimiters_mail   = NULL;
1017 uschar *raw_active_hostname    = NULL;
1018 uschar *raw_sender             = NULL;
1019 uschar **raw_recipients        = NULL;
1020 int     raw_recipients_count   = 0;
1021
1022 int     rcpt_count             = 0;
1023 int     rcpt_fail_count        = 0;
1024 int     rcpt_defer_count       = 0;
1025 gid_t   real_gid;
1026 uid_t   real_uid;
1027 BOOL    really_exim            = TRUE;
1028 BOOL    receive_call_bombout   = FALSE;
1029 int     receive_linecount      = 0;
1030 int     receive_messagecount   = 0;
1031 int     receive_timeout        = 0;
1032 int     received_count         = 0;
1033 uschar *received_for           = NULL;
1034
1035 /*  This is the default text for Received headers generated by Exim. The
1036 date  will be automatically added on the end. */
1037
1038 uschar *received_header_text   = US
1039      "Received: "
1040      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1041      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1042      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1043      "by $primary_hostname "
1044      "${if def:received_protocol {with $received_protocol}} "
1045      #ifdef SUPPORT_TLS
1046      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1047      #endif
1048      "(Exim $version_number)\n\t"
1049      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1050      "id $message_exim_id"
1051      "${if def:received_for {\n\tfor $received_for}}"
1052      "\0<---------------Space to patch received_header_text->";
1053
1054 int     received_headers_max   = 30;
1055 uschar *received_protocol      = NULL;
1056 int     received_time          = 0;
1057 uschar *recipient_data         = NULL;
1058 uschar *recipient_unqualified_hosts = NULL;
1059 uschar *recipient_verify_failure = NULL;
1060 int     recipients_count       = 0;
1061 BOOL    recipients_discarded   = FALSE;
1062 recipient_item  *recipients_list = NULL;
1063 int     recipients_list_max    = 0;
1064 int     recipients_max         = 0;
1065 BOOL    recipients_max_reject  = FALSE;
1066 const pcre *regex_AUTH         = NULL;
1067 const pcre *regex_check_dns_names = NULL;
1068 const pcre *regex_From         = NULL;
1069 const pcre *regex_IGNOREQUOTA  = NULL;
1070 const pcre *regex_PIPELINING   = NULL;
1071 const pcre *regex_SIZE         = NULL;
1072 const pcre *regex_smtp_code    = NULL;
1073 const pcre *regex_ismsgid      = NULL;
1074 #ifdef WHITELIST_D_MACROS
1075 const pcre *regex_whitelisted_macro = NULL;
1076 #endif
1077 #ifdef WITH_CONTENT_SCAN
1078 uschar *regex_match_string     = NULL;
1079 #endif
1080 int     remote_delivery_count  = 0;
1081 int     remote_max_parallel    = 2;
1082 uschar *remote_sort_domains    = NULL;
1083 int     retry_data_expire      = 7*24*60*60;
1084 int     retry_interval_max     = 24*60*60;
1085 int     retry_maximum_timeout  = 0;        /* set from retry config */
1086 retry_config  *retries         = NULL;
1087 uschar *return_path            = NULL;
1088 BOOL    return_path_remove     = TRUE;
1089 int     rewrite_existflags     = 0;
1090 uschar *rfc1413_hosts          = US"@[]";
1091 int     rfc1413_query_timeout  = 0;
1092 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1093 uid_t   root_gid               = ROOT_GID;
1094 uid_t   root_uid               = ROOT_UID;
1095
1096 router_instance  *routers  = NULL;
1097 router_instance  router_defaults = {
1098     NULL,                      /* chain pointer */
1099     NULL,                      /* name */
1100     NULL,                      /* info */
1101     NULL,                      /* private options block pointer */
1102     NULL,                      /* driver name */
1103
1104     NULL,                      /* address_data */
1105 #ifdef EXPERIMENTAL_BRIGHTMAIL
1106     NULL,                      /* bmi_rule */
1107 #endif
1108     NULL,                      /* cannot_route_message */
1109     NULL,                      /* condition */
1110     NULL,                      /* current_directory */
1111     NULL,                      /* debug_string */
1112     NULL,                      /* domains */
1113     NULL,                      /* errors_to */
1114     NULL,                      /* expand_gid */
1115     NULL,                      /* expand_uid */
1116     NULL,                      /* expand_more */
1117     NULL,                      /* expand_unseen */
1118     NULL,                      /* extra_headers */
1119     NULL,                      /* fallback_hosts */
1120     NULL,                      /* home_directory */
1121     NULL,                      /* ignore_target_hosts */
1122     NULL,                      /* local_parts */
1123     NULL,                      /* pass_router_name */
1124     NULL,                      /* prefix */
1125     NULL,                      /* redirect_router_name */
1126     NULL,                      /* remove_headers */
1127     NULL,                      /* require_files */
1128     NULL,                      /* router_home_directory */
1129     US"freeze",                /* self */
1130     NULL,                      /* senders */
1131     NULL,                      /* suffix */
1132     NULL,                      /* translate_ip_address */
1133     NULL,                      /* transport_name */
1134
1135     TRUE,                      /* address_test */
1136 #ifdef EXPERIMENTAL_BRIGHTMAIL
1137     FALSE,                     /* bmi_deliver_alternate */
1138     FALSE,                     /* bmi_deliver_default */
1139     FALSE,                     /* bmi_dont_deliver */
1140 #endif
1141     TRUE,                      /* expn */
1142     FALSE,                     /* caseful_local_part */
1143     FALSE,                     /* check_local_user */
1144     FALSE,                     /* disable_logging */
1145     FALSE,                     /* fail_verify_recipient */
1146     FALSE,                     /* fail_verify_sender */
1147     FALSE,                     /* gid_set */
1148     FALSE,                     /* initgroups */
1149     TRUE_UNSET,                /* log_as_local */
1150     TRUE,                      /* more */
1151     FALSE,                     /* pass_on_timeout */
1152     FALSE,                     /* prefix_optional */
1153     TRUE,                      /* repeat_use */
1154     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1155     FALSE,                     /* same_domain_copy_routing */
1156     FALSE,                     /* self_rewrite */
1157     FALSE,                     /* suffix_optional */
1158     FALSE,                     /* verify_only */
1159     TRUE,                      /* verify_recipient */
1160     TRUE,                      /* verify_sender */
1161     FALSE,                     /* uid_set */
1162     FALSE,                     /* unseen */
1163     FALSE,                     /* dsn_lasthop */
1164
1165     self_freeze,               /* self_code */
1166     (uid_t)(-1),               /* uid */
1167     (gid_t)(-1),               /* gid */
1168
1169     NULL,                      /* fallback_hostlist */
1170     NULL,                      /* transport instance */
1171     NULL,                      /* pass_router */
1172     NULL,                      /* redirect_router */
1173
1174     { NULL, NULL },            /* dnssec_domains {require,request} */
1175 };
1176
1177 uschar *router_name            = NULL;
1178
1179 ip_address_item *running_interfaces = NULL;
1180 BOOL    running_in_test_harness = FALSE;
1181
1182 /* This is a weird one. The following string gets patched in the binary by the
1183 script that sets up a copy of Exim for running in the test harness. It seems
1184 that compilers are now clever, and share constant strings if they can.
1185 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1186 make use of the end of this string in order to save space. So the patching then
1187 wrecks this. We defeat this optimization by adding some additional characters
1188 onto the end of the string. */
1189
1190 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1191
1192 int     runrc                  = 0;
1193
1194 uschar *search_error_message   = NULL;
1195 BOOL    search_find_defer      = FALSE;
1196 uschar *self_hostname          = NULL;
1197 uschar *sender_address         = NULL;
1198 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1199 uschar *sender_address_data    = NULL;
1200 BOOL    sender_address_forced  = FALSE;
1201 uschar *sender_address_unrewritten = NULL;
1202 uschar *sender_data            = NULL;
1203 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1204 uschar *sender_fullhost        = NULL;
1205 BOOL    sender_helo_dnssec     = FALSE;
1206 uschar *sender_helo_name       = NULL;
1207 uschar **sender_host_aliases   = &no_aliases;
1208 uschar *sender_host_address    = NULL;
1209 uschar *sender_host_authenticated = NULL;
1210 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1211 BOOL    sender_host_dnssec     = FALSE;
1212 uschar *sender_host_name       = NULL;
1213 int     sender_host_port       = 0;
1214 BOOL    sender_host_notsocket  = FALSE;
1215 BOOL    sender_host_unknown    = FALSE;
1216 uschar *sender_ident           = NULL;
1217 BOOL    sender_local           = FALSE;
1218 BOOL    sender_name_forced     = FALSE;
1219 uschar *sender_rate            = NULL;
1220 uschar *sender_rate_limit      = NULL;
1221 uschar *sender_rate_period     = NULL;
1222 uschar *sender_rcvhost         = NULL;
1223 BOOL    sender_set_untrusted   = FALSE;
1224 uschar *sender_unqualified_hosts = NULL;
1225 uschar *sender_verify_failure = NULL;
1226 address_item *sender_verified_list  = NULL;
1227 address_item *sender_verified_failed = NULL;
1228 int     sender_verified_rc     = -1;
1229 BOOL    sender_verified_responded = FALSE;
1230 uschar *sending_ip_address     = NULL;
1231 int     sending_port           = -1;
1232 SIGNAL_BOOL sigalrm_seen       = FALSE;
1233 uschar **sighup_argv           = NULL;
1234 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1235 int     smtp_accept_count      = 0;
1236 BOOL    smtp_accept_keepalive  = TRUE;
1237 int     smtp_accept_max        = 20;
1238 int     smtp_accept_max_nonmail= 10;
1239 uschar *smtp_accept_max_nonmail_hosts = US"*";
1240 int     smtp_accept_max_per_connection = 1000;
1241 uschar *smtp_accept_max_per_host = NULL;
1242 int     smtp_accept_queue      = 0;
1243 int     smtp_accept_queue_per_connection = 10;
1244 int     smtp_accept_reserve    = 0;
1245 uschar *smtp_active_hostname   = NULL;
1246 BOOL    smtp_authenticated     = FALSE;
1247 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1248                              "Exim $version_number $tod_full"
1249                              "\0<---------------Space to patch smtp_banner->";
1250 BOOL    smtp_batched_input     = FALSE;
1251 BOOL    smtp_check_spool_space = TRUE;
1252 int     smtp_ch_index          = 0;
1253 uschar *smtp_cmd_argument      = NULL;
1254 uschar *smtp_cmd_buffer        = NULL;
1255 time_t  smtp_connection_start  = 0;
1256 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1257 int     smtp_connect_backlog   = 20;
1258 double  smtp_delay_mail        = 0.0;
1259 double  smtp_delay_rcpt        = 0.0;
1260 BOOL    smtp_enforce_sync      = TRUE;
1261 FILE   *smtp_in                = NULL;
1262 BOOL    smtp_input             = FALSE;
1263 int     smtp_load_reserve      = -1;
1264 int     smtp_mailcmd_count     = 0;
1265 FILE   *smtp_out               = NULL;
1266 uschar *smtp_etrn_command      = NULL;
1267 BOOL    smtp_etrn_serialize    = TRUE;
1268 int     smtp_max_synprot_errors= 3;
1269 int     smtp_max_unknown_commands = 3;
1270 uschar *smtp_notquit_reason    = NULL;
1271 uschar *smtp_ratelimit_hosts   = NULL;
1272 uschar *smtp_ratelimit_mail    = NULL;
1273 uschar *smtp_ratelimit_rcpt    = NULL;
1274 uschar *smtp_read_error        = US"";
1275 int     smtp_receive_timeout   = 5*60;
1276 uschar *smtp_receive_timeout_s = NULL;
1277 uschar *smtp_reserve_hosts     = NULL;
1278 BOOL    smtp_return_error_details = FALSE;
1279 int     smtp_rlm_base          = 0;
1280 double  smtp_rlm_factor        = 0.0;
1281 int     smtp_rlm_limit         = 0;
1282 int     smtp_rlm_threshold     = INT_MAX;
1283 int     smtp_rlr_base          = 0;
1284 double  smtp_rlr_factor        = 0.0;
1285 int     smtp_rlr_limit         = 0;
1286 int     smtp_rlr_threshold     = INT_MAX;
1287 BOOL    smtp_use_pipelining    = FALSE;
1288 BOOL    smtp_use_size          = FALSE;
1289 #ifdef EXPERIMENTAL_INTERNATIONAL
1290 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1291 #endif
1292
1293 #ifdef WITH_CONTENT_SCAN
1294 uschar *spamd_address          = US"127.0.0.1 783";
1295 uschar *spam_bar               = NULL;
1296 uschar *spam_report            = NULL;
1297 uschar *spam_action            = NULL;
1298 uschar *spam_score             = NULL;
1299 uschar *spam_score_int         = NULL;
1300 #endif
1301 #ifdef EXPERIMENTAL_SPF
1302 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1303 uschar *spf_header_comment     = NULL;
1304 uschar *spf_received           = NULL;
1305 uschar *spf_result             = NULL;
1306 uschar *spf_smtp_comment       = NULL;
1307 #endif
1308
1309 BOOL    split_spool_directory  = FALSE;
1310 uschar *spool_directory        = US SPOOL_DIRECTORY
1311                            "\0<--------------Space to patch spool_directory->";
1312 #ifdef EXPERIMENTAL_SRS
1313 uschar *srs_config             = NULL;
1314 uschar *srs_db_address         = NULL;
1315 uschar *srs_db_key             = NULL;
1316 int     srs_hashlength         = 6;
1317 int     srs_hashmin            = -1;
1318 int     srs_maxage             = 31;
1319 uschar *srs_orig_recipient     = NULL;
1320 uschar *srs_orig_sender        = NULL;
1321 uschar *srs_recipient          = NULL;
1322 uschar *srs_secrets            = NULL;
1323 uschar *srs_status             = NULL;
1324 BOOL    srs_usehash            = TRUE;
1325 BOOL    srs_usetimestamp       = TRUE;
1326 #endif
1327 BOOL    strict_acl_vars        = FALSE;
1328 int     string_datestamp_offset= -1;
1329 int     string_datestamp_length= 0;
1330 int     string_datestamp_type  = -1;
1331 BOOL    strip_excess_angle_brackets = FALSE;
1332 BOOL    strip_trailing_dot     = FALSE;
1333 uschar *submission_domain      = NULL;
1334 BOOL    submission_mode        = FALSE;
1335 uschar *submission_name        = NULL;
1336 BOOL    suppress_local_fixups  = FALSE;
1337 BOOL    suppress_local_fixups_default = FALSE;
1338 BOOL    synchronous_delivery   = FALSE;
1339 BOOL    syslog_duplication     = TRUE;
1340 int     syslog_facility        = LOG_MAIL;
1341 uschar *syslog_processname     = US"exim";
1342 BOOL    syslog_timestamp       = TRUE;
1343 uschar *system_filter          = NULL;
1344
1345 uschar *system_filter_directory_transport = NULL;
1346 uschar *system_filter_file_transport = NULL;
1347 uschar *system_filter_pipe_transport = NULL;
1348 uschar *system_filter_reply_transport = NULL;
1349
1350 gid_t   system_filter_gid      = 0;
1351 BOOL    system_filter_gid_set  = FALSE;
1352 uid_t   system_filter_uid      = (uid_t)-1;
1353 BOOL    system_filter_uid_set  = FALSE;
1354 BOOL    system_filtering       = FALSE;
1355
1356 BOOL    tcp_nodelay            = TRUE;
1357 #ifdef USE_TCP_WRAPPERS
1358 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1359 #endif
1360 int     test_harness_load_avg  = 0;
1361 int     thismessage_size_limit = 0;
1362 int     timeout_frozen_after   = 0;
1363 BOOL    timestamps_utc         = FALSE;
1364
1365 transport_instance  *transports = NULL;
1366
1367 transport_instance  transport_defaults = {
1368     NULL,                     /* chain pointer */
1369     NULL,                     /* name */
1370     NULL,                     /* info */
1371     NULL,                     /* private options block pointer */
1372     NULL,                     /* driver name */
1373     NULL,                     /* setup entry point */
1374     1,                        /* batch_max */
1375     NULL,                     /* batch_id */
1376     NULL,                     /* home_dir */
1377     NULL,                     /* current_dir */
1378     NULL,                     /* expand-multi-domain */
1379     TRUE,                     /* multi-domain */
1380     FALSE,                    /* overrides_hosts */
1381     100,                      /* max_addresses */
1382     500,                      /* connection_max_messages */
1383     FALSE,                    /* deliver_as_creator */
1384     FALSE,                    /* disable_logging */
1385     FALSE,                    /* initgroups */
1386     FALSE,                    /* uid_set */
1387     FALSE,                    /* gid_set */
1388     (uid_t)(-1),              /* uid */
1389     (gid_t)(-1),              /* gid */
1390     NULL,                     /* expand_uid */
1391     NULL,                     /* expand_gid */
1392     NULL,                     /* warn_message */
1393     NULL,                     /* shadow */
1394     NULL,                     /* shadow_condition */
1395     NULL,                     /* filter_command */
1396     NULL,                     /* add_headers */
1397     NULL,                     /* remove_headers */
1398     NULL,                     /* return_path */
1399     NULL,                     /* debug_string */
1400     NULL,                     /* message_size_limit */
1401     NULL,                     /* headers_rewrite */
1402     NULL,                     /* rewrite_rules */
1403     0,                        /* rewrite_existflags */
1404     300,                      /* filter_timeout */
1405     FALSE,                    /* body_only */
1406     FALSE,                    /* delivery_date_add */
1407     FALSE,                    /* envelope_to_add */
1408     FALSE,                    /* headers_only */
1409     FALSE,                    /* rcpt_include_affixes */
1410     FALSE,                    /* return_path_add */
1411     FALSE,                    /* return_output */
1412     FALSE,                    /* return_fail_output */
1413     FALSE,                    /* log_output */
1414     FALSE,                    /* log_fail_output */
1415     FALSE,                    /* log_defer_output */
1416     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1417                                  1 nor 0 so can detect unset */
1418 #ifdef EXPERIMENTAL_EVENT
1419    ,NULL                      /* event_action */
1420 #endif
1421 };
1422
1423 int     transport_count;
1424 uschar *transport_name          = NULL;
1425 int     transport_newlines;
1426 const uschar **transport_filter_argv  = NULL;
1427 int     transport_filter_timeout;
1428 BOOL    transport_filter_timed_out = FALSE;
1429 int     transport_write_timeout= 0;
1430
1431 tree_node  *tree_dns_fails     = NULL;
1432 tree_node  *tree_duplicates    = NULL;
1433 tree_node  *tree_nonrecipients = NULL;
1434 tree_node  *tree_unusable      = NULL;
1435
1436 BOOL    trusted_caller         = FALSE;
1437 BOOL    trusted_config         = TRUE;
1438 gid_t  *trusted_groups         = NULL;
1439 uid_t  *trusted_users          = NULL;
1440 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1441
1442 uschar *unknown_login          = NULL;
1443 uschar *unknown_username       = NULL;
1444 uschar *untrusted_set_sender   = NULL;
1445
1446 /*  A regex for matching a "From_" line in an incoming message, in the form
1447
1448     From ph10 Fri Jan  5 12:35 GMT 1996
1449
1450 which  the "mail" commands send to the MTA (undocumented, of course), or in
1451 the  form
1452
1453     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1454
1455 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1456 Because  of variations in time formats, just match up to the minutes. That
1457 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1458 so  just require one digit for hours and minutes. The weekday is also absent
1459 in  some forms. */
1460
1461 uschar *uucp_from_pattern      = US
1462    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1463    "(?:"                                          /* Non-extracting bracket */
1464    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1465    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1466    ")"                                            /* End alternation */
1467    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1468
1469 uschar *uucp_from_sender       = US"$1";
1470
1471 uschar *verify_mode            = NULL;
1472 uschar *version_copyright      =
1473  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1474    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1475 uschar *version_date           = US"?";
1476 uschar *version_cnumber        = US"????";
1477 uschar *version_string         = US"?";
1478
1479 uschar *warn_message_file      = NULL;
1480 int     warning_count          = 0;
1481 uschar *warnmsg_delay          = NULL;
1482 uschar *warnmsg_recipients     = NULL;
1483 BOOL    write_rejectlog        = TRUE;
1484
1485
1486 /*  End of globals.c */