src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2014 */
   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 #ifndef DISABLE_OCSP
 160 uschar *tls_ocsp_file          = NULL;
 161 #endif
 162 BOOL    tls_offered            = FALSE;
 163 uschar *tls_privatekey         = NULL;
 164 BOOL    tls_remember_esmtp     = FALSE;
 165 uschar *tls_require_ciphers    = NULL;
 166 uschar *tls_try_verify_hosts   = NULL;
 167 uschar *tls_verify_certificates= US"system";
 168 uschar *tls_verify_hosts       = NULL;
 169 #endif
 170
 171 #ifndef DISABLE_PRDR
 172 /* Per Recipient Data Response variables */
 173 BOOL    prdr_enable            = FALSE;
 174 BOOL    prdr_requested         = FALSE;
 175 const pcre *regex_PRDR         = NULL;
 176 #endif
 177
 178 /* Input-reading functions for messages, so we can use special ones for
 179 incoming TCP/IP. The defaults use stdin. We never need these for any
 180 stand-alone tests. */
 181
 182 #ifndef STAND_ALONE
 183 int (*receive_getc)(void)      = stdin_getc;
 184 int (*receive_ungetc)(int)     = stdin_ungetc;
 185 int (*receive_feof)(void)      = stdin_feof;
 186 int (*receive_ferror)(void)    = stdin_ferror;
 187 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 188 #endif
 189
 190
 191 /* List of per-address expansion variables for clearing and saving/restoring
 192 when verifying one address while routing/verifying another. We have to have
 193 the size explicit, because it is referenced from more than one module. */
 194
 195 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 196   &deliver_address_data,
 197   &deliver_domain,
 198   &deliver_domain_data,
 199   &deliver_domain_orig,
 200   &deliver_domain_parent,
 201   &deliver_localpart,
 202   &deliver_localpart_data,
 203   &deliver_localpart_orig,
 204   &deliver_localpart_parent,
 205   &deliver_localpart_prefix,
 206   &deliver_localpart_suffix,
 207   (uschar **)(&deliver_recipients),
 208   &deliver_host,
 209   &deliver_home,
 210   &address_file,
 211   &address_pipe,
 212   &self_hostname,
 213   NULL };
 214
 215 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 216
 217 /* General global variables */
 218
 219 header_line *acl_added_headers = NULL;
 220 tree_node *acl_anchor          = NULL;
 221 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 222                                   NULL, NULL, NULL, NULL};
 223 int     acl_narg               = 0;
 224
 225 uschar *acl_not_smtp           = NULL;
 226 #ifdef WITH_CONTENT_SCAN
 227 uschar *acl_not_smtp_mime      = NULL;
 228 #endif
 229 uschar *acl_not_smtp_start     = NULL;
 230 uschar *acl_removed_headers    = NULL;
 231 uschar *acl_smtp_auth          = NULL;
 232 uschar *acl_smtp_connect       = NULL;
 233 uschar *acl_smtp_data          = NULL;
 234 #ifndef DISABLE_PRDR
 235 uschar *acl_smtp_data_prdr     = US"accept";
 236 #endif
 237 #ifndef DISABLE_DKIM
 238 uschar *acl_smtp_dkim          = NULL;
 239 #endif
 240 uschar *acl_smtp_etrn          = NULL;
 241 uschar *acl_smtp_expn          = NULL;
 242 uschar *acl_smtp_helo          = NULL;
 243 uschar *acl_smtp_mail          = NULL;
 244 uschar *acl_smtp_mailauth      = NULL;
 245 #ifdef WITH_CONTENT_SCAN
 246 uschar *acl_smtp_mime          = NULL;
 247 #endif
 248 uschar *acl_smtp_notquit       = NULL;
 249 uschar *acl_smtp_predata       = NULL;
 250 uschar *acl_smtp_quit          = NULL;
 251 uschar *acl_smtp_rcpt          = NULL;
 252 uschar *acl_smtp_starttls      = NULL;
 253 uschar *acl_smtp_vrfy          = NULL;
 254
 255 BOOL    acl_temp_details       = FALSE;
 256 tree_node *acl_var_c           = NULL;
 257 tree_node *acl_var_m           = NULL;
 258 uschar *acl_verify_message     = NULL;
 259 string_item *acl_warn_logged   = NULL;
 260
 261 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 262 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 263
 264 uschar *acl_wherenames[]       = { US"RCPT",
 265                                    US"MAIL",
 266                                    US"PREDATA",
 267                                    US"MIME",
 268                                    US"DKIM",
 269                                    US"DATA",
 270 #ifndef DISABLE_PRDR
 271                                    US"PRDR",
 272 #endif
 273                                    US"non-SMTP",
 274                                    US"AUTH",
 275                                    US"connection",
 276                                    US"ETRN",
 277                                    US"EXPN",
 278                                    US"EHLO or HELO",
 279                                    US"MAILAUTH",
 280                                    US"non-SMTP-start",
 281                                    US"NOTQUIT",
 282                                    US"QUIT",
 283                                    US"STARTTLS",
 284                                    US"VRFY",
 285                                    US"delivery",
 286                                    US"unknown"
 287                                  };
 288
 289 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 290                                    US"550",     /* MAIL */
 291                                    US"550",     /* PREDATA */
 292                                    US"550",     /* MIME */
 293                                    US"550",     /* DKIM */
 294                                    US"550",     /* DATA */
 295 #ifndef DISABLE_PRDR
 296                                    US"550",    /* RCPT PRDR */
 297 #endif
 298                                    US"0",       /* not SMTP; not relevant */
 299                                    US"503",     /* AUTH */
 300                                    US"550",     /* connect */
 301                                    US"458",     /* ETRN */
 302                                    US"550",     /* EXPN */
 303                                    US"550",     /* HELO/EHLO */
 304                                    US"0",       /* MAILAUTH; not relevant */
 305                                    US"0",       /* not SMTP; not relevant */
 306                                    US"0",       /* NOTQUIT; not relevant */
 307                                    US"0",       /* QUIT; not relevant */
 308                                    US"550",     /* STARTTLS */
 309                                    US"252",     /* VRFY */
 310                                    US"0",       /* delivery; not relevant */
 311                                    US"0"        /* unknown; not relevant */
 312                                  };
 313
 314 BOOL    active_local_from_check = FALSE;
 315 BOOL    active_local_sender_retain = FALSE;
 316 int     body_8bitmime = 0;
 317 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 318 address_item  *addr_duplicate  = NULL;
 319
 320 address_item address_defaults = {
 321   NULL,                 /* next */
 322   NULL,                 /* parent */
 323   NULL,                 /* first */
 324   NULL,                 /* dupof */
 325   NULL,                 /* start_router */
 326   NULL,                 /* router */
 327   NULL,                 /* transport */
 328   NULL,                 /* host_list */
 329   NULL,                 /* host_used */
 330   NULL,                 /* fallback_hosts */
 331   NULL,                 /* reply */
 332   NULL,                 /* retries */
 333   NULL,                 /* address */
 334   NULL,                 /* unique */
 335   NULL,                 /* cc_local_part */
 336   NULL,                 /* lc_local_part */
 337   NULL,                 /* local_part */
 338   NULL,                 /* prefix */
 339   NULL,                 /* suffix */
 340   NULL,                 /* domain */
 341   NULL,                 /* address_retry_key */
 342   NULL,                 /* domain_retry_key */
 343   NULL,                 /* current_dir */
 344   NULL,                 /* home_dir */
 345   NULL,                 /* message */
 346   NULL,                 /* user_message */
 347   NULL,                 /* onetime_parent */
 348   NULL,                 /* pipe_expandn */
 349   NULL,                 /* return_filename */
 350   NULL,                 /* self_hostname */
 351   NULL,                 /* shadow_message */
 352   #ifdef SUPPORT_TLS
 353   NULL,                 /* cipher */
 354   NULL,                 /* ourcert */
 355   NULL,                 /* peercert */
 356   NULL,                 /* peerdn */
 357   OCSP_NOT_REQ,         /* ocsp */
 358   #endif
 359   NULL,                 /* authenticator */
 360   NULL,                 /* auth_id */
 361   NULL,                 /* auth_sndr */
 362   NULL,                 /* dsn_orcpt */
 363   0,                    /* dsn_flags */
 364   0,                    /* dsn_aware */
 365   (uid_t)(-1),          /* uid */
 366   (gid_t)(-1),          /* gid */
 367   0,                    /* flags */
 368   { 0 },                /* domain_cache - any larger array should be zeroed */
 369   { 0 },                /* localpart_cache - ditto */
 370   -1,                   /* mode */
 371   0,                    /* more_errno */
 372   ERRNO_UNKNOWNERROR,   /* basic_errno */
 373   0,                    /* child_count */
 374   -1,                   /* return_file */
 375   SPECIAL_NONE,         /* special_action */
 376   DEFER,                /* transport_return */
 377   {                     /* fields that are propagated to children */
 378     NULL,               /* address_data */
 379     NULL,               /* domain_data */
 380     NULL,               /* localpart_data */
 381     NULL,               /* errors_address */
 382     NULL,               /* extra_headers */
 383     NULL,               /* remove_headers */
 384 #ifdef EXPERIMENTAL_SRS
 385     NULL,               /* srs_sender */
 386 #endif
 387   }
 388 };
 389
 390 uschar *address_file           = NULL;
 391 uschar *address_pipe           = NULL;
 392 BOOL    address_test_mode      = FALSE;
 393 tree_node *addresslist_anchor  = NULL;
 394 int     addresslist_count      = 0;
 395 gid_t  *admin_groups           = NULL;
 396 BOOL    admin_user             = FALSE;
 397 BOOL    allow_auth_unadvertised= FALSE;
 398 BOOL    allow_domain_literals  = FALSE;
 399 BOOL    allow_mx_to_ip         = FALSE;
 400 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 401 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 402 BOOL    allow_utf8_domains     = FALSE;
 403 uschar *authenticated_fail_id  = NULL;
 404 uschar *authenticated_id       = NULL;
 405 uschar *authenticated_sender   = NULL;
 406 BOOL    authentication_failed  = FALSE;
 407 auth_instance  *auths          = NULL;
 408 uschar *auth_advertise_hosts   = US"*";
 409 auth_instance auth_defaults    = {
 410     NULL,                      /* chain pointer */
 411     NULL,                      /* name */
 412     NULL,                      /* info */
 413     NULL,                      /* private options block pointer */
 414     NULL,                      /* driver_name */
 415     NULL,                      /* advertise_condition */
 416     NULL,                      /* client_condition */
 417     NULL,                      /* public_name */
 418     NULL,                      /* set_id */
 419     NULL,                      /* set_client_id */
 420     NULL,                      /* server_mail_auth_condition */
 421     NULL,                      /* server_debug_string */
 422     NULL,                      /* server_condition */
 423     FALSE,                     /* client */
 424     FALSE,                     /* server */
 425     FALSE                      /* advertised */
 426 };
 427
 428 uschar *auth_defer_msg         = US"reason not recorded";
 429 uschar *auth_defer_user_msg    = US"";
 430 uschar *auth_vars[AUTH_VARS];
 431 int     auto_thaw              = 0;
 432 #ifdef WITH_CONTENT_SCAN
 433 BOOL    av_failed              = FALSE;
 434 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 435 #endif
 436
 437 BOOL    background_daemon      = TRUE;
 438
 439 #if BASE_62 == 62
 440 uschar *base62_chars=
 441     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 442 #else
 443 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 444 #endif
 445
 446 uschar *bi_command             = NULL;
 447 uschar *big_buffer             = NULL;
 448 int     big_buffer_size        = BIG_BUFFER_SIZE;
 449 #ifdef EXPERIMENTAL_BRIGHTMAIL
 450 uschar *bmi_alt_location       = NULL;
 451 uschar *bmi_base64_tracker_verdict = NULL;
 452 uschar *bmi_base64_verdict     = NULL;
 453 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 454 int     bmi_deliver            = 1;
 455 int     bmi_run                = 0;
 456 uschar *bmi_verdicts           = NULL;
 457 #endif
 458 int     body_linecount         = 0;
 459 int     body_zerocount         = 0;
 460 uschar *bounce_message_file    = NULL;
 461 uschar *bounce_message_text    = NULL;
 462 uschar *bounce_recipient       = NULL;
 463 BOOL    bounce_return_body     = TRUE;
 464 BOOL    bounce_return_message  = TRUE;
 465 int     bounce_return_size_limit = 100*1024;
 466 uschar *bounce_sender_authentication = NULL;
 467 int     bsmtp_transaction_linecount = 0;
 468
 469 int     callout_cache_domain_positive_expire = 7*24*60*60;
 470 int     callout_cache_domain_negative_expire = 3*60*60;
 471 int     callout_cache_positive_expire = 24*60*60;
 472 int     callout_cache_negative_expire = 2*60*60;
 473 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 474 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 475 int     check_log_inodes       = 0;
 476 int     check_log_space        = 0;
 477 BOOL    check_rfc2047_length   = TRUE;
 478 int     check_spool_inodes     = 0;
 479 int     check_spool_space      = 0;
 480 uschar  *client_authenticator  = NULL;
 481 uschar  *client_authenticated_id = NULL;
 482 uschar  *client_authenticated_sender = NULL;
 483 int     clmacro_count          = 0;
 484 uschar *clmacros[MAX_CLMACROS];
 485 BOOL    config_changed         = FALSE;
 486 FILE   *config_file            = NULL;
 487 uschar *config_filename        = NULL;
 488 int     config_lineno          = 0;
 489 #ifdef CONFIGURE_GROUP
 490 gid_t   config_gid             = CONFIGURE_GROUP;
 491 #endif
 492 uschar *config_main_filelist   = US CONFIGURE_FILE
 493                          "\0<-----------Space to patch configure_filename->";
 494 uschar *config_main_filename   = NULL;
 495 uschar *config_main_directory  = NULL;
 496
 497 #ifdef CONFIGURE_OWNER
 498 uid_t   config_uid             = CONFIGURE_OWNER;
 499 #endif
 500
 501 int     connection_max_messages= -1;
 502 uschar *continue_hostname      = NULL;
 503 uschar *continue_host_address  = NULL;
 504 BOOL    continue_more          = FALSE;
 505 int     continue_sequence      = 1;
 506 uschar *continue_transport     = NULL;
 507
 508 uschar *csa_status             = NULL;
 509 BOOL    cutthrough_delivery    = FALSE;
 510 int     cutthrough_fd          = -1;
 511
 512 BOOL    daemon_listen          = FALSE;
 513 uschar *daemon_smtp_port       = US"smtp";
 514 int     daemon_startup_retries = 9;
 515 int     daemon_startup_sleep   = 30;
 516
 517 #ifdef EXPERIMENTAL_DCC
 518 BOOL    dcc_direct_add_header  = FALSE;
 519 uschar *dcc_header             = NULL;
 520 uschar *dcc_result             = NULL;
 521 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 522 uschar *dccifd_options         = US"header";
 523 #endif
 524
 525 BOOL    debug_daemon           = FALSE;
 526 int     debug_fd               = -1;
 527 FILE   *debug_file             = NULL;
 528 bit_table debug_options[]      = {
 529   { US"acl",            D_acl },
 530   { US"all",            D_all },
 531   { US"auth",           D_auth },
 532   { US"deliver",        D_deliver },
 533   { US"dns",            D_dns },
 534   { US"dnsbl",          D_dnsbl },
 535   { US"exec",           D_exec },
 536   { US"expand",         D_expand },
 537   { US"filter",         D_filter },
 538   { US"hints_lookup",   D_hints_lookup },
 539   { US"host_lookup",    D_host_lookup },
 540   { US"ident",          D_ident },
 541   { US"interface",      D_interface },
 542   { US"lists",          D_lists },
 543   { US"load",           D_load },
 544   { US"local_scan",     D_local_scan },
 545   { US"lookup",         D_lookup },
 546   { US"memory",         D_memory },
 547   { US"pid",            D_pid },
 548   { US"process_info",   D_process_info },
 549   { US"queue_run",      D_queue_run },
 550   { US"receive",        D_receive },
 551   { US"resolver",       D_resolver },
 552   { US"retry",          D_retry },
 553   { US"rewrite",        D_rewrite },
 554   { US"route",          D_route },
 555   { US"timestamp",      D_timestamp },
 556   { US"tls",            D_tls },
 557   { US"transport",      D_transport },
 558   { US"uid",            D_uid },
 559   { US"verify",         D_verify }
 560 };
 561 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 562 unsigned int debug_selector    = 0;
 563 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 564 uschar *delay_warning_condition=
 565   US"${if or {"
 566             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 567             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 568             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 569             "} {no}{yes}}";
 570 BOOL    delivery_date_remove   = TRUE;
 571 uschar *deliver_address_data   = NULL;
 572 int     deliver_datafile       = -1;
 573 uschar *deliver_domain         = NULL;
 574 uschar *deliver_domain_data    = NULL;
 575 uschar *deliver_domain_orig    = NULL;
 576 uschar *deliver_domain_parent  = NULL;
 577 BOOL    deliver_drop_privilege = FALSE;
 578 BOOL    deliver_firsttime      = FALSE;
 579 BOOL    deliver_force          = FALSE;
 580 BOOL    deliver_freeze         = FALSE;
 581 time_t  deliver_frozen_at      = 0;
 582 uschar *deliver_home           = NULL;
 583 uschar *deliver_host           = NULL;
 584 uschar *deliver_host_address   = NULL;
 585 int     deliver_host_port      = 0;
 586 uschar *deliver_in_buffer      = NULL;
 587 ino_t   deliver_inode          = 0;
 588 uschar *deliver_localpart      = NULL;
 589 uschar *deliver_localpart_data = NULL;
 590 uschar *deliver_localpart_orig = NULL;
 591 uschar *deliver_localpart_parent = NULL;
 592 uschar *deliver_localpart_prefix = NULL;
 593 uschar *deliver_localpart_suffix = NULL;
 594 BOOL    deliver_force_thaw     = FALSE;
 595 BOOL    deliver_manual_thaw    = FALSE;
 596 uschar *deliver_out_buffer     = NULL;
 597 int     deliver_queue_load_max = -1;
 598 address_item  *deliver_recipients = NULL;
 599 uschar *deliver_selectstring   = NULL;
 600 BOOL    deliver_selectstring_regex = FALSE;
 601 uschar *deliver_selectstring_sender = NULL;
 602 BOOL    deliver_selectstring_sender_regex = FALSE;
 603 #ifdef WITH_OLD_DEMIME
 604 int     demime_errorlevel      = 0;
 605 int     demime_ok              = 0;
 606 uschar *demime_reason          = NULL;
 607 #endif
 608 BOOL    disable_callout_flush  = FALSE;
 609 BOOL    disable_delay_flush    = FALSE;
 610 #ifdef ENABLE_DISABLE_FSYNC
 611 BOOL    disable_fsync          = FALSE;
 612 #endif
 613 BOOL    disable_ipv6           = FALSE;
 614 BOOL    disable_logging        = FALSE;
 615
 616 #ifndef DISABLE_DKIM
 617 uschar *dkim_cur_signer          = NULL;
 618 uschar *dkim_signers             = NULL;
 619 uschar *dkim_signing_domain      = NULL;
 620 uschar *dkim_signing_selector    = NULL;
 621 uschar *dkim_verify_signers      = US"$dkim_signers";
 622 BOOL    dkim_collect_input       = FALSE;
 623 BOOL    dkim_disable_verify      = FALSE;
 624 #endif
 625 #ifdef EXPERIMENTAL_DMARC
 626 BOOL    dmarc_has_been_checked  = FALSE;
 627 uschar *dmarc_ar_header         = NULL;
 628 uschar *dmarc_domain_policy     = NULL;
 629 uschar *dmarc_forensic_sender   = NULL;
 630 uschar *dmarc_history_file      = NULL;
 631 uschar *dmarc_status            = NULL;
 632 uschar *dmarc_status_text       = NULL;
 633 uschar *dmarc_tld_file          = NULL;
 634 uschar *dmarc_used_domain       = NULL;
 635 BOOL    dmarc_disable_verify    = FALSE;
 636 BOOL    dmarc_enable_forensic   = FALSE;
 637 #endif
 638
 639 uschar *dns_again_means_nonexist = NULL;
 640 int     dns_csa_search_limit   = 5;
 641 BOOL    dns_csa_use_reverse    = TRUE;
 642 #ifdef EXPERIMENTAL_DANE
 643 int     dns_dane_ok            = -1;
 644 #endif
 645 uschar *dns_ipv4_lookup        = NULL;
 646 int     dns_retrans            = 0;
 647 int     dns_retry              = 0;
 648 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 649 int     dns_use_edns0          = -1; /* <0 = not coerced */
 650 uschar *dnslist_domain         = NULL;
 651 uschar *dnslist_matched        = NULL;
 652 uschar *dnslist_text           = NULL;
 653 uschar *dnslist_value          = NULL;
 654 tree_node *domainlist_anchor   = NULL;
 655 int     domainlist_count       = 0;
 656 BOOL    dont_deliver           = FALSE;
 657 BOOL    dot_ends               = TRUE;
 658 BOOL    drop_cr                = FALSE;         /* No longer used */
 659 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 660
 661 BOOL    enable_dollar_recipients = FALSE;
 662 BOOL    envelope_to_remove     = TRUE;
 663 int     errno_quota            = ERRNO_QUOTA;
 664 uschar *errors_copy            = NULL;
 665 int     error_handling         = ERRORS_SENDER;
 666 uschar *errors_reply_to        = NULL;
 667 int     errors_sender_rc       = EXIT_FAILURE;
 668 #ifdef EXPERIMENTAL_EVENT
 669 uschar *event_action             = NULL;        /* expansion for delivery events */
 670 uschar *event_data               = NULL;        /* auxilary data variable for event */
 671 int     event_defer_errno        = 0;
 672 uschar *event_name               = NULL;        /* event name variable */
 673 #endif
 674
 675
 676 gid_t   exim_gid               = EXIM_GID;
 677 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 678 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 679                         "\0<---------------Space to patch exim_path->";
 680 uid_t   exim_uid               = EXIM_UID;
 681 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 682 int     expand_forbid          = 0;
 683 int     expand_nlength[EXPAND_MAXN+1];
 684 int     expand_nmax            = -1;
 685 uschar *expand_nstring[EXPAND_MAXN+1];
 686 BOOL    expand_string_forcedfail = FALSE;
 687 uschar *expand_string_message;
 688 BOOL    extract_addresses_remove_arguments = TRUE;
 689 uschar *extra_local_interfaces = NULL;
 690
 691 int     fake_response          = OK;
 692 uschar *fake_response_text     = US"Your message has been rejected but is "
 693                                    "being kept for evaluation.\nIf it was a "
 694                                    "legitimate message, it may still be "
 695                                    "delivered to the target recipient(s).";
 696 int     filter_n[FILTER_VARIABLE_COUNT];
 697 BOOL    filter_running         = FALSE;
 698 int     filter_sn[FILTER_VARIABLE_COUNT];
 699 int     filter_test            = FTEST_NONE;
 700 uschar *filter_test_sfile      = NULL;
 701 uschar *filter_test_ufile      = NULL;
 702 uschar *filter_thisaddress     = NULL;
 703 int     finduser_retries       = 0;
 704 #ifdef WITH_OLD_DEMIME
 705 uschar *found_extension        = NULL;
 706 #endif
 707 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 708 uschar *freeze_tell            = NULL;
 709 uschar *freeze_tell_config     = NULL;
 710 uschar *fudged_queue_times     = US"";
 711
 712 uschar *gecos_name             = NULL;
 713 uschar *gecos_pattern          = NULL;
 714 rewrite_rule  *global_rewrite_rules = NULL;
 715
 716 uschar *headers_charset        = US HEADERS_CHARSET;
 717 int     header_insert_maxlen   = 64 * 1024;
 718 header_line  *header_last      = NULL;
 719 header_line  *header_list      = NULL;
 720 int     header_maxsize         = HEADER_MAXSIZE;
 721 int     header_line_maxsize    = 0;
 722
 723 header_name header_names[] = {
 724   { US"bcc",            3, TRUE,  htype_bcc },
 725   { US"cc",             2, TRUE,  htype_cc },
 726   { US"date",           4, TRUE,  htype_date },
 727   { US"delivery-date", 13, FALSE, htype_delivery_date },
 728   { US"envelope-to",   11, FALSE, htype_envelope_to },
 729   { US"from",           4, TRUE,  htype_from },
 730   { US"message-id",    10, TRUE,  htype_id },
 731   { US"received",       8, FALSE, htype_received },
 732   { US"reply-to",       8, FALSE, htype_reply_to },
 733   { US"return-path",   11, FALSE, htype_return_path },
 734   { US"sender",         6, TRUE,  htype_sender },
 735   { US"subject",        7, FALSE, htype_subject },
 736   { US"to",             2, TRUE,  htype_to }
 737 };
 738
 739 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 740
 741 BOOL    header_rewritten       = FALSE;
 742 uschar *helo_accept_junk_hosts = NULL;
 743 uschar *helo_allow_chars       = US"";
 744 uschar *helo_lookup_domains    = US"@ : @[]";
 745 uschar *helo_try_verify_hosts  = NULL;
 746 BOOL    helo_verified          = FALSE;
 747 BOOL    helo_verify_failed     = FALSE;
 748 uschar *helo_verify_hosts      = NULL;
 749 const uschar *hex_digits       = CUS"0123456789abcdef";
 750 uschar *hold_domains           = NULL;
 751 BOOL    host_checking          = FALSE;
 752 BOOL    host_checking_callout  = FALSE;
 753 uschar *host_data              = NULL;
 754 BOOL    host_find_failed_syntax= FALSE;
 755 uschar *host_lookup            = NULL;
 756 BOOL    host_lookup_deferred   = FALSE;
 757 BOOL    host_lookup_failed     = FALSE;
 758 uschar *host_lookup_order      = US"bydns:byaddr";
 759 uschar *host_lookup_msg        = US"";
 760 int     host_number            = 0;
 761 uschar *host_number_string     = NULL;
 762 uschar *host_reject_connection = NULL;
 763 tree_node *hostlist_anchor     = NULL;
 764 int     hostlist_count         = 0;
 765 uschar *hosts_treat_as_local   = NULL;
 766 uschar *hosts_connection_nolog = NULL;
 767
 768 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 769 BOOL    ignore_fromline_local  = FALSE;
 770 uschar *ignore_fromline_hosts  = NULL;
 771 BOOL    inetd_wait_mode        = FALSE;
 772 int     inetd_wait_timeout     = -1;
 773 uschar *interface_address      = NULL;
 774 int     interface_port         = -1;
 775 BOOL    is_inetd               = FALSE;
 776 uschar *iterate_item           = NULL;
 777
 778 int     journal_fd             = -1;
 779
 780 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 781
 782 uschar *eldap_dn               = NULL;
 783 int     load_average           = -2;
 784 BOOL    local_error_message    = FALSE;
 785 BOOL    local_from_check       = TRUE;
 786 uschar *local_from_prefix      = NULL;
 787 uschar *local_from_suffix      = NULL;
 788
 789 #if HAVE_IPV6
 790 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 791 #else
 792 uschar *local_interfaces       = US"0.0.0.0";
 793 #endif
 794
 795 uschar *local_scan_data        = NULL;
 796 int     local_scan_timeout     = 5*60;
 797 BOOL    local_sender_retain    = FALSE;
 798 gid_t   local_user_gid         = (gid_t)(-1);
 799 uid_t   local_user_uid         = (uid_t)(-1);
 800
 801 tree_node *localpartlist_anchor= NULL;
 802 int     localpartlist_count    = 0;
 803 uschar *log_buffer             = NULL;
 804 unsigned int log_extra_selector = LX_default;
 805 uschar *log_file_path          = US LOG_FILE_PATH
 806                            "\0<--------------Space to patch log_file_path->";
 807
 808 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 809 are the ones that get put into log_write_selector. They can be used in calls to
 810 log_write() to test for the bit. The options with LX_xxx identifiers have
 811 values greater than 0x80000000 and are put into log_extra_selector (without the
 812 top bit). They are never used in calls to log_write(), but are tested
 813 independently. This separation became necessary when the number of log
 814 selectors was getting close to filling a 32-bit word. */
 815
 816 /* Note that this list must be in alphabetical order. */
 817
 818 bit_table log_options[]        = {
 819   { US"8bitmime",                     LX_8bitmime },
 820   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 821   { US"address_rewrite",              L_address_rewrite },
 822   { US"all",                          L_all },
 823   { US"all_parents",                  L_all_parents },
 824   { US"arguments",                    LX_arguments },
 825   { US"connection_reject",            L_connection_reject },
 826   { US"delay_delivery",               L_delay_delivery },
 827   { US"deliver_time",                 LX_deliver_time },
 828   { US"delivery_size",                LX_delivery_size },
 829   { US"dnslist_defer",                L_dnslist_defer },
 830   { US"etrn",                         L_etrn },
 831   { US"host_lookup_failed",           L_host_lookup_failed },
 832   { US"ident_timeout",                LX_ident_timeout },
 833   { US"incoming_interface",           LX_incoming_interface },
 834   { US"incoming_port",                LX_incoming_port },
 835   { US"lost_incoming_connection",     L_lost_incoming_connection },
 836   { US"outgoing_port",                LX_outgoing_port },
 837   { US"pid",                          LX_pid },
 838 #ifdef EXPERIMENTAL_PROXY
 839   { US"proxy",                        LX_proxy },
 840 #endif
 841   { US"queue_run",                    L_queue_run },
 842   { US"queue_time",                   LX_queue_time },
 843   { US"queue_time_overall",           LX_queue_time_overall },
 844   { US"received_recipients",          LX_received_recipients },
 845   { US"received_sender",              LX_received_sender },
 846   { US"rejected_header",              LX_rejected_header },
 847   { US"rejected_headers",             LX_rejected_header },
 848   { US"retry_defer",                  L_retry_defer },
 849   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 850   { US"sender_on_delivery",           LX_sender_on_delivery },
 851   { US"sender_verify_fail",           LX_sender_verify_fail },
 852   { US"size_reject",                  L_size_reject },
 853   { US"skip_delivery",                L_skip_delivery },
 854   { US"smtp_confirmation",            LX_smtp_confirmation },
 855   { US"smtp_connection",              L_smtp_connection },
 856   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 857   { US"smtp_mailauth",                LX_smtp_mailauth },
 858   { US"smtp_no_mail",                 LX_smtp_no_mail },
 859   { US"smtp_protocol_error",          L_smtp_protocol_error },
 860   { US"smtp_syntax_error",            L_smtp_syntax_error },
 861   { US"subject",                      LX_subject },
 862   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 863   { US"tls_cipher",                   LX_tls_cipher },
 864   { US"tls_peerdn",                   LX_tls_peerdn },
 865   { US"tls_sni",                      LX_tls_sni },
 866   { US"unknown_in_list",              LX_unknown_in_list }
 867 };
 868
 869 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 870 int     log_reject_target      = 0;
 871 uschar *log_selector_string    = NULL;
 872 FILE   *log_stderr             = NULL;
 873 BOOL    log_testing_mode       = FALSE;
 874 BOOL    log_timezone           = FALSE;
 875 unsigned int log_write_selector= L_default;
 876 uschar *login_sender_address   = NULL;
 877 uschar *lookup_dnssec_authenticated = NULL;
 878 int     lookup_open_max        = 25;
 879 uschar *lookup_value           = NULL;
 880
 881 macro_item  *macros            = NULL;
 882 uschar *mailstore_basename     = NULL;
 883 #ifdef WITH_CONTENT_SCAN
 884 uschar *malware_name           = NULL;  /* Virus Name */
 885 #endif
 886 int     max_received_linelength= 0;
 887 int     max_username_length    = 0;
 888 int     message_age            = 0;
 889 uschar *message_body           = NULL;
 890 uschar *message_body_end       = NULL;
 891 BOOL    message_body_newlines  = FALSE;
 892 int     message_body_size      = 0;
 893 int     message_body_visible   = 500;
 894 int     message_ended          = END_NOTSTARTED;
 895 uschar *message_headers        = NULL;
 896 uschar *message_id;
 897 uschar *message_id_domain      = NULL;
 898 uschar *message_id_text        = NULL;
 899 struct timeval message_id_tv   = { 0, 0 };
 900 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 901 uschar *message_id_external;
 902 int     message_linecount      = 0;
 903 BOOL    message_logs           = TRUE;
 904 int     message_size           = 0;
 905 uschar *message_size_limit     = US"50M";
 906 uschar  message_subdir[2]      = { 0, 0 };
 907 uschar *message_reference      = NULL;
 908
 909 /* MIME ACL expandables */
 910 #ifdef WITH_CONTENT_SCAN
 911 int     mime_anomaly_level     = 0;
 912 const uschar *mime_anomaly_text      = NULL;
 913 uschar *mime_boundary          = NULL;
 914 uschar *mime_charset           = NULL;
 915 uschar *mime_content_description = NULL;
 916 uschar *mime_content_disposition = NULL;
 917 uschar *mime_content_id        = NULL;
 918 unsigned int mime_content_size = 0;
 919 uschar *mime_content_transfer_encoding = NULL;
 920 uschar *mime_content_type      = NULL;
 921 uschar *mime_decoded_filename  = NULL;
 922 uschar *mime_filename          = NULL;
 923 int     mime_is_multipart      = 0;
 924 int     mime_is_coverletter    = 0;
 925 int     mime_is_rfc822         = 0;
 926 int     mime_part_count        = -1;
 927 #endif
 928
 929 BOOL    mua_wrapper            = FALSE;
 930
 931 uid_t  *never_users            = NULL;
 932 #ifdef WITH_CONTENT_SCAN
 933 BOOL    no_mbox_unspool        = FALSE;
 934 #endif
 935 BOOL    no_multiline_responses = FALSE;
 936
 937 uid_t   original_euid;
 938 gid_t   originator_gid;
 939 uschar *originator_login       = NULL;
 940 uschar *originator_name        = NULL;
 941 uid_t   originator_uid;
 942 uschar *override_local_interfaces = NULL;
 943 uschar *override_pid_file_path = NULL;
 944
 945 BOOL    parse_allow_group      = FALSE;
 946 BOOL    parse_found_group      = FALSE;
 947 uschar *percent_hack_domains   = NULL;
 948 uschar *pid_file_path          = US PID_FILE_PATH
 949                            "\0<--------------Space to patch pid_file_path->";
 950 BOOL    pipelining_enable      = TRUE;
 951 uschar *pipelining_advertise_hosts = US"*";
 952 BOOL    preserve_message_logs  = FALSE;
 953 uschar *primary_hostname       = NULL;
 954 BOOL    print_topbitchars      = FALSE;
 955 uschar  process_info[PROCESS_INFO_SIZE];
 956 int     process_info_len       = 0;
 957 uschar *process_log_path       = NULL;
 958 BOOL    prod_requires_admin    = TRUE;
 959
 960 #ifdef EXPERIMENTAL_PROXY
 961 uschar *proxy_host_address     = US"";
 962 int     proxy_host_port        = 0;
 963 uschar *proxy_required_hosts   = US"";
 964 BOOL    proxy_session          = FALSE;
 965 BOOL    proxy_session_failed   = FALSE;
 966 uschar *proxy_target_address   = US"";
 967 int     proxy_target_port      = 0;
 968 #endif
 969
 970 uschar *prvscheck_address      = NULL;
 971 uschar *prvscheck_keynum       = NULL;
 972 uschar *prvscheck_result       = NULL;
 973
 974
 975 uschar *qualify_domain_recipient = NULL;
 976 uschar *qualify_domain_sender  = NULL;
 977 BOOL    queue_2stage           = FALSE;
 978 uschar *queue_domains          = NULL;
 979 int     queue_interval         = -1;
 980 BOOL    queue_list_requires_admin = TRUE;
 981 BOOL    queue_only             = FALSE;
 982 uschar *queue_only_file        = NULL;
 983 int     queue_only_load        = -1;
 984 BOOL    queue_only_load_latch  = TRUE;
 985 BOOL    queue_only_override    = TRUE;
 986 BOOL    queue_only_policy      = FALSE;
 987 BOOL    queue_run_first_delivery = FALSE;
 988 BOOL    queue_run_force        = FALSE;
 989 BOOL    queue_run_in_order     = FALSE;
 990 BOOL    queue_run_local        = FALSE;
 991 int     queue_run_max          = 5;
 992 pid_t   queue_run_pid          = (pid_t)0;
 993 int     queue_run_pipe         = -1;
 994 BOOL    queue_running          = FALSE;
 995 BOOL    queue_smtp             = FALSE;
 996 uschar *queue_smtp_domains     = NULL;
 997
 998 unsigned int random_seed       = 0;
 999 tree_node *ratelimiters_cmd    = NULL;
1000 tree_node *ratelimiters_conn   = NULL;
1001 tree_node *ratelimiters_mail   = NULL;
1002 uschar *raw_active_hostname    = NULL;
1003 uschar *raw_sender             = NULL;
1004 uschar **raw_recipients        = NULL;
1005 int     raw_recipients_count   = 0;
1006
1007 int     rcpt_count             = 0;
1008 int     rcpt_fail_count        = 0;
1009 int     rcpt_defer_count       = 0;
1010 gid_t   real_gid;
1011 uid_t   real_uid;
1012 BOOL    really_exim            = TRUE;
1013 BOOL    receive_call_bombout   = FALSE;
1014 int     receive_linecount      = 0;
1015 int     receive_messagecount   = 0;
1016 int     receive_timeout        = 0;
1017 int     received_count         = 0;
1018 uschar *received_for           = NULL;
1019
1020 /*  This is the default text for Received headers generated by Exim. The
1021 date  will be automatically added on the end. */
1022
1023 uschar *received_header_text   = US
1024      "Received: "
1025      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1026      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1027      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1028      "by $primary_hostname "
1029      "${if def:received_protocol {with $received_protocol}} "
1030      #ifdef SUPPORT_TLS
1031      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1032      #endif
1033      "(Exim $version_number)\n\t"
1034      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1035      "id $message_exim_id"
1036      "${if def:received_for {\n\tfor $received_for}}"
1037      "\0<---------------Space to patch received_header_text->";
1038
1039 int     received_headers_max   = 30;
1040 uschar *received_protocol      = NULL;
1041 int     received_time          = 0;
1042 uschar *recipient_data         = NULL;
1043 uschar *recipient_unqualified_hosts = NULL;
1044 uschar *recipient_verify_failure = NULL;
1045 int     recipients_count       = 0;
1046 BOOL    recipients_discarded   = FALSE;
1047 recipient_item  *recipients_list = NULL;
1048 int     recipients_list_max    = 0;
1049 int     recipients_max         = 0;
1050 BOOL    recipients_max_reject  = FALSE;
1051 const pcre *regex_AUTH         = NULL;
1052 const pcre *regex_check_dns_names = NULL;
1053 const pcre *regex_From         = NULL;
1054 const pcre *regex_IGNOREQUOTA  = NULL;
1055 const pcre *regex_PIPELINING   = NULL;
1056 const pcre *regex_SIZE         = NULL;
1057 const pcre *regex_smtp_code    = NULL;
1058 const pcre *regex_ismsgid      = NULL;
1059 #ifdef WHITELIST_D_MACROS
1060 const pcre *regex_whitelisted_macro = NULL;
1061 #endif
1062 #ifdef WITH_CONTENT_SCAN
1063 uschar *regex_match_string     = NULL;
1064 #endif
1065 int     remote_delivery_count  = 0;
1066 int     remote_max_parallel    = 2;
1067 uschar *remote_sort_domains    = NULL;
1068 int     retry_data_expire      = 7*24*60*60;
1069 int     retry_interval_max     = 24*60*60;
1070 int     retry_maximum_timeout  = 0;        /* set from retry config */
1071 retry_config  *retries         = NULL;
1072 uschar *return_path            = NULL;
1073 BOOL    return_path_remove     = TRUE;
1074 int     rewrite_existflags     = 0;
1075 uschar *rfc1413_hosts          = US"@[]";
1076 int     rfc1413_query_timeout  = 0;
1077 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1078 uid_t   root_gid               = ROOT_GID;
1079 uid_t   root_uid               = ROOT_UID;
1080
1081 router_instance  *routers  = NULL;
1082 router_instance  router_defaults = {
1083     NULL,                      /* chain pointer */
1084     NULL,                      /* name */
1085     NULL,                      /* info */
1086     NULL,                      /* private options block pointer */
1087     NULL,                      /* driver name */
1088
1089     NULL,                      /* address_data */
1090 #ifdef EXPERIMENTAL_BRIGHTMAIL
1091     NULL,                      /* bmi_rule */
1092 #endif
1093     NULL,                      /* cannot_route_message */
1094     NULL,                      /* condition */
1095     NULL,                      /* current_directory */
1096     NULL,                      /* debug_string */
1097     NULL,                      /* domains */
1098     NULL,                      /* errors_to */
1099     NULL,                      /* expand_gid */
1100     NULL,                      /* expand_uid */
1101     NULL,                      /* expand_more */
1102     NULL,                      /* expand_unseen */
1103     NULL,                      /* extra_headers */
1104     NULL,                      /* fallback_hosts */
1105     NULL,                      /* home_directory */
1106     NULL,                      /* ignore_target_hosts */
1107     NULL,                      /* local_parts */
1108     NULL,                      /* pass_router_name */
1109     NULL,                      /* prefix */
1110     NULL,                      /* redirect_router_name */
1111     NULL,                      /* remove_headers */
1112     NULL,                      /* require_files */
1113     NULL,                      /* router_home_directory */
1114     US"freeze",                /* self */
1115     NULL,                      /* senders */
1116     NULL,                      /* suffix */
1117     NULL,                      /* translate_ip_address */
1118     NULL,                      /* transport_name */
1119
1120     TRUE,                      /* address_test */
1121 #ifdef EXPERIMENTAL_BRIGHTMAIL
1122     FALSE,                     /* bmi_deliver_alternate */
1123     FALSE,                     /* bmi_deliver_default */
1124     FALSE,                     /* bmi_dont_deliver */
1125 #endif
1126     TRUE,                      /* expn */
1127     FALSE,                     /* caseful_local_part */
1128     FALSE,                     /* check_local_user */
1129     FALSE,                     /* disable_logging */
1130     FALSE,                     /* fail_verify_recipient */
1131     FALSE,                     /* fail_verify_sender */
1132     FALSE,                     /* gid_set */
1133     FALSE,                     /* initgroups */
1134     TRUE_UNSET,                /* log_as_local */
1135     TRUE,                      /* more */
1136     FALSE,                     /* pass_on_timeout */
1137     FALSE,                     /* prefix_optional */
1138     TRUE,                      /* repeat_use */
1139     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1140     FALSE,                     /* same_domain_copy_routing */
1141     FALSE,                     /* self_rewrite */
1142     FALSE,                     /* suffix_optional */
1143     FALSE,                     /* verify_only */
1144     TRUE,                      /* verify_recipient */
1145     TRUE,                      /* verify_sender */
1146     FALSE,                     /* uid_set */
1147     FALSE,                     /* unseen */
1148     FALSE,                     /* dsn_lasthop */
1149
1150     self_freeze,               /* self_code */
1151     (uid_t)(-1),               /* uid */
1152     (gid_t)(-1),               /* gid */
1153
1154     NULL,                      /* fallback_hostlist */
1155     NULL,                      /* transport instance */
1156     NULL,                      /* pass_router */
1157     NULL                       /* redirect_router */
1158 };
1159
1160 uschar *router_name            = NULL;
1161
1162 ip_address_item *running_interfaces = NULL;
1163 BOOL    running_in_test_harness = FALSE;
1164
1165 /* This is a weird one. The following string gets patched in the binary by the
1166 script that sets up a copy of Exim for running in the test harness. It seems
1167 that compilers are now clever, and share constant strings if they can.
1168 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1169 make use of the end of this string in order to save space. So the patching then
1170 wrecks this. We defeat this optimization by adding some additional characters
1171 onto the end of the string. */
1172
1173 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1174
1175 int     runrc                  = 0;
1176
1177 uschar *search_error_message   = NULL;
1178 BOOL    search_find_defer      = FALSE;
1179 uschar *self_hostname          = NULL;
1180 uschar *sender_address         = NULL;
1181 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1182 uschar *sender_address_data    = NULL;
1183 BOOL    sender_address_forced  = FALSE;
1184 uschar *sender_address_unrewritten = NULL;
1185 uschar *sender_data            = NULL;
1186 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1187 uschar *sender_fullhost        = NULL;
1188 uschar *sender_helo_name       = NULL;
1189 uschar **sender_host_aliases   = &no_aliases;
1190 uschar *sender_host_address    = NULL;
1191 uschar *sender_host_authenticated = NULL;
1192 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1193 BOOL    sender_host_dnssec     = FALSE;
1194 uschar *sender_host_name       = NULL;
1195 int     sender_host_port       = 0;
1196 BOOL    sender_host_notsocket  = FALSE;
1197 BOOL    sender_host_unknown    = FALSE;
1198 uschar *sender_ident           = NULL;
1199 BOOL    sender_local           = FALSE;
1200 BOOL    sender_name_forced     = FALSE;
1201 uschar *sender_rate            = NULL;
1202 uschar *sender_rate_limit      = NULL;
1203 uschar *sender_rate_period     = NULL;
1204 uschar *sender_rcvhost         = NULL;
1205 BOOL    sender_set_untrusted   = FALSE;
1206 uschar *sender_unqualified_hosts = NULL;
1207 uschar *sender_verify_failure = NULL;
1208 address_item *sender_verified_list  = NULL;
1209 address_item *sender_verified_failed = NULL;
1210 int     sender_verified_rc     = -1;
1211 BOOL    sender_verified_responded = FALSE;
1212 uschar *sending_ip_address     = NULL;
1213 int     sending_port           = -1;
1214 SIGNAL_BOOL sigalrm_seen       = FALSE;
1215 uschar **sighup_argv           = NULL;
1216 int     smtp_accept_count      = 0;
1217 BOOL    smtp_accept_keepalive  = TRUE;
1218 int     smtp_accept_max        = 20;
1219 int     smtp_accept_max_nonmail= 10;
1220 uschar *smtp_accept_max_nonmail_hosts = US"*";
1221 int     smtp_accept_max_per_connection = 1000;
1222 uschar *smtp_accept_max_per_host = NULL;
1223 int     smtp_accept_queue      = 0;
1224 int     smtp_accept_queue_per_connection = 10;
1225 int     smtp_accept_reserve    = 0;
1226 uschar *smtp_active_hostname   = NULL;
1227 BOOL    smtp_authenticated     = FALSE;
1228 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1229                              "Exim $version_number $tod_full"
1230                              "\0<---------------Space to patch smtp_banner->";
1231 BOOL    smtp_batched_input     = FALSE;
1232 BOOL    smtp_check_spool_space = TRUE;
1233 int     smtp_ch_index          = 0;
1234 uschar *smtp_cmd_argument      = NULL;
1235 uschar *smtp_cmd_buffer        = NULL;
1236 time_t  smtp_connection_start  = 0;
1237 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1238 int     smtp_connect_backlog   = 20;
1239 double  smtp_delay_mail        = 0.0;
1240 double  smtp_delay_rcpt        = 0.0;
1241 BOOL    smtp_enforce_sync      = TRUE;
1242 FILE   *smtp_in                = NULL;
1243 BOOL    smtp_input             = FALSE;
1244 int     smtp_load_reserve      = -1;
1245 int     smtp_mailcmd_count     = 0;
1246 FILE   *smtp_out               = NULL;
1247 uschar *smtp_etrn_command      = NULL;
1248 BOOL    smtp_etrn_serialize    = TRUE;
1249 int     smtp_max_synprot_errors= 3;
1250 int     smtp_max_unknown_commands = 3;
1251 uschar *smtp_notquit_reason    = NULL;
1252 uschar *smtp_ratelimit_hosts   = NULL;
1253 uschar *smtp_ratelimit_mail    = NULL;
1254 uschar *smtp_ratelimit_rcpt    = NULL;
1255 uschar *smtp_read_error        = US"";
1256 int     smtp_receive_timeout   = 5*60;
1257 uschar *smtp_receive_timeout_s = NULL;
1258 uschar *smtp_reserve_hosts     = NULL;
1259 BOOL    smtp_return_error_details = FALSE;
1260 int     smtp_rlm_base          = 0;
1261 double  smtp_rlm_factor        = 0.0;
1262 int     smtp_rlm_limit         = 0;
1263 int     smtp_rlm_threshold     = INT_MAX;
1264 int     smtp_rlr_base          = 0;
1265 double  smtp_rlr_factor        = 0.0;
1266 int     smtp_rlr_limit         = 0;
1267 int     smtp_rlr_threshold     = INT_MAX;
1268 BOOL    smtp_use_pipelining    = FALSE;
1269 BOOL    smtp_use_size          = FALSE;
1270
1271 #ifdef WITH_CONTENT_SCAN
1272 uschar *spamd_address          = US"127.0.0.1 783";
1273 uschar *spam_bar               = NULL;
1274 uschar *spam_report            = NULL;
1275 uschar *spam_score             = NULL;
1276 uschar *spam_score_int         = NULL;
1277 #endif
1278 #ifdef EXPERIMENTAL_SPF
1279 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1280 uschar *spf_header_comment     = NULL;
1281 uschar *spf_received           = NULL;
1282 uschar *spf_result             = NULL;
1283 uschar *spf_smtp_comment       = NULL;
1284 #endif
1285
1286 BOOL    split_spool_directory  = FALSE;
1287 uschar *spool_directory        = US SPOOL_DIRECTORY
1288                            "\0<--------------Space to patch spool_directory->";
1289 #ifdef EXPERIMENTAL_SRS
1290 uschar *srs_config             = NULL;
1291 uschar *srs_db_address         = NULL;
1292 uschar *srs_db_key             = NULL;
1293 int     srs_hashlength         = 6;
1294 int     srs_hashmin            = -1;
1295 int     srs_maxage             = 31;
1296 uschar *srs_orig_recipient     = NULL;
1297 uschar *srs_orig_sender        = NULL;
1298 uschar *srs_recipient          = NULL;
1299 uschar *srs_secrets            = NULL;
1300 uschar *srs_status             = NULL;
1301 BOOL    srs_usehash            = TRUE;
1302 BOOL    srs_usetimestamp       = TRUE;
1303 #endif
1304 BOOL    strict_acl_vars        = FALSE;
1305 int     string_datestamp_offset= -1;
1306 int     string_datestamp_length= 0;
1307 int     string_datestamp_type  = -1;
1308 BOOL    strip_excess_angle_brackets = FALSE;
1309 BOOL    strip_trailing_dot     = FALSE;
1310 uschar *submission_domain      = NULL;
1311 BOOL    submission_mode        = FALSE;
1312 uschar *submission_name        = NULL;
1313 BOOL    suppress_local_fixups  = FALSE;
1314 BOOL    suppress_local_fixups_default = FALSE;
1315 BOOL    synchronous_delivery   = FALSE;
1316 BOOL    syslog_duplication     = TRUE;
1317 int     syslog_facility        = LOG_MAIL;
1318 uschar *syslog_processname     = US"exim";
1319 BOOL    syslog_timestamp       = TRUE;
1320 uschar *system_filter          = NULL;
1321
1322 uschar *system_filter_directory_transport = NULL;
1323 uschar *system_filter_file_transport = NULL;
1324 uschar *system_filter_pipe_transport = NULL;
1325 uschar *system_filter_reply_transport = NULL;
1326
1327 gid_t   system_filter_gid      = 0;
1328 BOOL    system_filter_gid_set  = FALSE;
1329 uid_t   system_filter_uid      = (uid_t)-1;
1330 BOOL    system_filter_uid_set  = FALSE;
1331 BOOL    system_filtering       = FALSE;
1332
1333 BOOL    tcp_nodelay            = TRUE;
1334 #ifdef USE_TCP_WRAPPERS
1335 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1336 #endif
1337 int     test_harness_load_avg  = 0;
1338 int     thismessage_size_limit = 0;
1339 int     timeout_frozen_after   = 0;
1340 BOOL    timestamps_utc         = FALSE;
1341
1342 transport_instance  *transports = NULL;
1343
1344 transport_instance  transport_defaults = {
1345     NULL,                     /* chain pointer */
1346     NULL,                     /* name */
1347     NULL,                     /* info */
1348     NULL,                     /* private options block pointer */
1349     NULL,                     /* driver name */
1350     NULL,                     /* setup entry point */
1351     1,                        /* batch_max */
1352     NULL,                     /* batch_id */
1353     NULL,                     /* home_dir */
1354     NULL,                     /* current_dir */
1355     NULL,                     /* expand-multi-domain */
1356     TRUE,                     /* multi-domain */
1357     FALSE,                    /* overrides_hosts */
1358     100,                      /* max_addresses */
1359     500,                      /* connection_max_messages */
1360     FALSE,                    /* deliver_as_creator */
1361     FALSE,                    /* disable_logging */
1362     FALSE,                    /* initgroups */
1363     FALSE,                    /* uid_set */
1364     FALSE,                    /* gid_set */
1365     (uid_t)(-1),              /* uid */
1366     (gid_t)(-1),              /* gid */
1367     NULL,                     /* expand_uid */
1368     NULL,                     /* expand_gid */
1369     NULL,                     /* warn_message */
1370     NULL,                     /* shadow */
1371     NULL,                     /* shadow_condition */
1372     NULL,                     /* filter_command */
1373     NULL,                     /* add_headers */
1374     NULL,                     /* remove_headers */
1375     NULL,                     /* return_path */
1376     NULL,                     /* debug_string */
1377     NULL,                     /* message_size_limit */
1378     NULL,                     /* headers_rewrite */
1379     NULL,                     /* rewrite_rules */
1380     0,                        /* rewrite_existflags */
1381     300,                      /* filter_timeout */
1382     FALSE,                    /* body_only */
1383     FALSE,                    /* delivery_date_add */
1384     FALSE,                    /* envelope_to_add */
1385     FALSE,                    /* headers_only */
1386     FALSE,                    /* rcpt_include_affixes */
1387     FALSE,                    /* return_path_add */
1388     FALSE,                    /* return_output */
1389     FALSE,                    /* return_fail_output */
1390     FALSE,                    /* log_output */
1391     FALSE,                    /* log_fail_output */
1392     FALSE,                    /* log_defer_output */
1393     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1394                                  1 nor 0 so can detect unset */
1395 #ifdef EXPERIMENTAL_EVENT
1396    ,NULL                      /* event_action */
1397 #endif
1398 };
1399
1400 int     transport_count;
1401 uschar *transport_name          = NULL;
1402 int     transport_newlines;
1403 uschar **transport_filter_argv  = NULL;
1404 int     transport_filter_timeout;
1405 BOOL    transport_filter_timed_out = FALSE;
1406 int     transport_write_timeout= 0;
1407
1408 tree_node  *tree_dns_fails     = NULL;
1409 tree_node  *tree_duplicates    = NULL;
1410 tree_node  *tree_nonrecipients = NULL;
1411 tree_node  *tree_unusable      = NULL;
1412
1413 BOOL    trusted_caller         = FALSE;
1414 BOOL    trusted_config         = TRUE;
1415 gid_t  *trusted_groups         = NULL;
1416 uid_t  *trusted_users          = NULL;
1417 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1418
1419 uschar *unknown_login          = NULL;
1420 uschar *unknown_username       = NULL;
1421 uschar *untrusted_set_sender   = NULL;
1422
1423 /*  A regex for matching a "From_" line in an incoming message, in the form
1424
1425     From ph10 Fri Jan  5 12:35 GMT 1996
1426
1427 which  the "mail" commands send to the MTA (undocumented, of course), or in
1428 the  form
1429
1430     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1431
1432 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1433 Because  of variations in time formats, just match up to the minutes. That
1434 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1435 so  just require one digit for hours and minutes. The weekday is also absent
1436 in  some forms. */
1437
1438 uschar *uucp_from_pattern      = US
1439    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1440    "(?:"                                          /* Non-extracting bracket */
1441    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1442    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1443    ")"                                            /* End alternation */
1444    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1445
1446 uschar *uucp_from_sender       = US"$1";
1447
1448 uschar *verify_mode            = NULL;
1449 uschar *version_copyright      =
1450  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1451    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1452 uschar *version_date           = US"?";
1453 uschar *version_cnumber        = US"????";
1454 uschar *version_string         = US"?";
1455
1456 uschar *warn_message_file      = NULL;
1457 int     warning_count          = 0;
1458 uschar *warnmsg_delay          = NULL;
1459 uschar *warnmsg_recipients     = NULL;
1460 BOOL    write_rejectlog        = TRUE;
1461
1462
1463 /*  End of globals.c */