src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2013 */
   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  NULL, /* tls_cipher */
 107  FALSE,/* tls_on_connect */
 108  NULL, /* tls_on_connect_ports */
 109  NULL, /* tls_peerdn */
 110  NULL  /* tls_sni */
 111 };
 112 tls_support tls_out = {
 113  -1,   /* tls_active */
 114  0,    /* tls_bits */
 115  FALSE,/* tls_certificate_verified */
 116  NULL, /* tls_cipher */
 117  FALSE,/* tls_on_connect */
 118  NULL, /* tls_on_connect_ports */
 119  NULL, /* tls_peerdn */
 120  NULL  /* tls_sni */
 121 };
 122
 123
 124 #ifdef SUPPORT_TLS
 125 BOOL    gnutls_compat_mode     = FALSE;
 126 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 127 uschar *gnutls_require_mac     = NULL;
 128 uschar *gnutls_require_kx      = NULL;
 129 uschar *gnutls_require_proto   = NULL;
 130 uschar *openssl_options        = NULL;
 131 const pcre *regex_STARTTLS     = NULL;
 132 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 133 uschar *tls_certificate        = NULL;
 134 uschar *tls_crl                = NULL;
 135 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 136 that's the interop problem which has been observed: GnuTLS suggesting a higher
 137 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 138 int     tls_dh_max_bits        = 2236;
 139 uschar *tls_dhparam            = NULL;
 140 #if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS)
 141 uschar *tls_ocsp_file          = NULL;
 142 #endif
 143 BOOL    tls_offered            = FALSE;
 144 uschar *tls_privatekey         = NULL;
 145 BOOL    tls_remember_esmtp     = FALSE;
 146 uschar *tls_require_ciphers    = NULL;
 147 uschar *tls_try_verify_hosts   = NULL;
 148 uschar *tls_verify_certificates= NULL;
 149 uschar *tls_verify_hosts       = NULL;
 150 #endif
 151
 152 #ifdef EXPERIMENTAL_PRDR
 153 /* Per Recipient Data Response variables */
 154 BOOL    prdr_enable            = FALSE;
 155 BOOL    prdr_requested         = FALSE;
 156 const pcre *regex_PRDR         = NULL;
 157 #endif
 158
 159 /* Input-reading functions for messages, so we can use special ones for
 160 incoming TCP/IP. The defaults use stdin. We never need these for any
 161 stand-alone tests. */
 162
 163 #ifndef STAND_ALONE
 164 int (*receive_getc)(void)      = stdin_getc;
 165 int (*receive_ungetc)(int)     = stdin_ungetc;
 166 int (*receive_feof)(void)      = stdin_feof;
 167 int (*receive_ferror)(void)    = stdin_ferror;
 168 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 169 #endif
 170
 171
 172 /* List of per-address expansion variables for clearing and saving/restoring
 173 when verifying one address while routing/verifying another. We have to have
 174 the size explicit, because it is referenced from more than one module. */
 175
 176 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 177   &deliver_address_data,
 178   &deliver_domain,
 179   &deliver_domain_data,
 180   &deliver_domain_orig,
 181   &deliver_domain_parent,
 182   &deliver_localpart,
 183   &deliver_localpart_data,
 184   &deliver_localpart_orig,
 185   &deliver_localpart_parent,
 186   &deliver_localpart_prefix,
 187   &deliver_localpart_suffix,
 188   (uschar **)(&deliver_recipients),
 189   &deliver_host,
 190   &deliver_home,
 191   &address_file,
 192   &address_pipe,
 193   &self_hostname,
 194   NULL };
 195
 196 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 197
 198 /* General global variables */
 199
 200 header_line *acl_added_headers = NULL;
 201 tree_node *acl_anchor          = NULL;
 202 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 203                                   NULL, NULL, NULL, NULL};
 204 int     acl_narg               = 0;
 205
 206 uschar *acl_not_smtp           = NULL;
 207 #ifdef WITH_CONTENT_SCAN
 208 uschar *acl_not_smtp_mime      = NULL;
 209 #endif
 210 uschar *acl_not_smtp_start     = NULL;
 211 uschar *acl_removed_headers    = NULL;
 212 uschar *acl_smtp_auth          = NULL;
 213 uschar *acl_smtp_connect       = NULL;
 214 uschar *acl_smtp_data          = NULL;
 215 #ifdef EXPERIMENTAL_PRDR
 216 uschar *acl_smtp_data_prdr     = NULL;
 217 #endif
 218 #ifndef DISABLE_DKIM
 219 uschar *acl_smtp_dkim          = NULL;
 220 #endif
 221 uschar *acl_smtp_etrn          = NULL;
 222 uschar *acl_smtp_expn          = NULL;
 223 uschar *acl_smtp_helo          = NULL;
 224 uschar *acl_smtp_mail          = NULL;
 225 uschar *acl_smtp_mailauth      = NULL;
 226 #ifdef WITH_CONTENT_SCAN
 227 uschar *acl_smtp_mime          = NULL;
 228 #endif
 229 uschar *acl_smtp_notquit       = NULL;
 230 uschar *acl_smtp_predata       = NULL;
 231 uschar *acl_smtp_quit          = NULL;
 232 uschar *acl_smtp_rcpt          = NULL;
 233 uschar *acl_smtp_starttls      = NULL;
 234 uschar *acl_smtp_vrfy          = NULL;
 235
 236 BOOL    acl_temp_details       = FALSE;
 237 tree_node *acl_var_c           = NULL;
 238 tree_node *acl_var_m           = NULL;
 239 uschar *acl_verify_message     = NULL;
 240 string_item *acl_warn_logged   = NULL;
 241
 242 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 243 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 244
 245 uschar *acl_wherenames[]       = { US"RCPT",
 246                                    US"MAIL",
 247                                    US"PREDATA",
 248                                    US"MIME",
 249                                    US"DKIM",
 250                                    US"DATA",
 251 #ifdef EXPERIMENTAL_PRDR
 252                                    US"PRDR",
 253 #endif
 254                                    US"non-SMTP",
 255                                    US"AUTH",
 256                                    US"connection",
 257                                    US"ETRN",
 258                                    US"EXPN",
 259                                    US"EHLO or HELO",
 260                                    US"MAILAUTH",
 261                                    US"non-SMTP-start",
 262                                    US"NOTQUIT",
 263                                    US"QUIT",
 264                                    US"STARTTLS",
 265                                    US"VRFY",
 266                                    US"delivery",
 267                                    US"unknown"
 268                                  };
 269
 270 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 271                                    US"550",     /* MAIL */
 272                                    US"550",     /* PREDATA */
 273                                    US"550",     /* MIME */
 274                                    US"550",     /* DKIM */
 275                                    US"550",     /* DATA */
 276 #ifdef EXPERIMENTAL_PRDR
 277                                    US"550",    /* RCPT PRDR */
 278 #endif
 279                                    US"0",       /* not SMTP; not relevant */
 280                                    US"503",     /* AUTH */
 281                                    US"550",     /* connect */
 282                                    US"458",     /* ETRN */
 283                                    US"550",     /* EXPN */
 284                                    US"550",     /* HELO/EHLO */
 285                                    US"0",       /* MAILAUTH; not relevant */
 286                                    US"0",       /* not SMTP; not relevant */
 287                                    US"0",       /* NOTQUIT; not relevant */
 288                                    US"0",       /* QUIT; not relevant */
 289                                    US"550",     /* STARTTLS */
 290                                    US"252",     /* VRFY */
 291                                    US"0",       /* delivery; not relevant */
 292                                    US"0"        /* unknown; not relevant */
 293                                  };
 294
 295 BOOL    active_local_from_check = FALSE;
 296 BOOL    active_local_sender_retain = FALSE;
 297 int     body_8bitmime = 0;
 298 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 299 address_item  *addr_duplicate  = NULL;
 300
 301 address_item address_defaults = {
 302   NULL,                 /* next */
 303   NULL,                 /* parent */
 304   NULL,                 /* first */
 305   NULL,                 /* dupof */
 306   NULL,                 /* start_router */
 307   NULL,                 /* router */
 308   NULL,                 /* transport */
 309   NULL,                 /* host_list */
 310   NULL,                 /* host_used */
 311   NULL,                 /* fallback_hosts */
 312   NULL,                 /* reply */
 313   NULL,                 /* retries */
 314   NULL,                 /* address */
 315   NULL,                 /* unique */
 316   NULL,                 /* cc_local_part */
 317   NULL,                 /* lc_local_part */
 318   NULL,                 /* local_part */
 319   NULL,                 /* prefix */
 320   NULL,                 /* suffix */
 321   NULL,                 /* domain */
 322   NULL,                 /* address_retry_key */
 323   NULL,                 /* domain_retry_key */
 324   NULL,                 /* current_dir */
 325   NULL,                 /* home_dir */
 326   NULL,                 /* message */
 327   NULL,                 /* user_message */
 328   NULL,                 /* onetime_parent */
 329   NULL,                 /* pipe_expandn */
 330   NULL,                 /* return_filename */
 331   NULL,                 /* self_hostname */
 332   NULL,                 /* shadow_message */
 333   #ifdef SUPPORT_TLS
 334   NULL,                 /* cipher */
 335   NULL,                 /* peerdn */
 336   #endif
 337   NULL,                 /* authenticator */
 338   NULL,                 /* auth_id */
 339   NULL,                 /* auth_sndr */
 340   (uid_t)(-1),          /* uid */
 341   (gid_t)(-1),          /* gid */
 342   0,                    /* flags */
 343   { 0 },                /* domain_cache - any larger array should be zeroed */
 344   { 0 },                /* localpart_cache - ditto */
 345   -1,                   /* mode */
 346   0,                    /* more_errno */
 347   ERRNO_UNKNOWNERROR,   /* basic_errno */
 348   0,                    /* child_count */
 349   -1,                   /* return_file */
 350   SPECIAL_NONE,         /* special_action */
 351   DEFER,                /* transport_return */
 352   {                     /* fields that are propagated to children */
 353     NULL,               /* address_data */
 354     NULL,               /* domain_data */
 355     NULL,               /* localpart_data */
 356     NULL,               /* errors_address */
 357     NULL,               /* extra_headers */
 358     NULL,               /* remove_headers */
 359 #ifdef EXPERIMENTAL_SRS
 360     NULL,               /* srs_sender */
 361 #endif
 362   }
 363 };
 364
 365 uschar *address_file           = NULL;
 366 uschar *address_pipe           = NULL;
 367 BOOL    address_test_mode      = FALSE;
 368 tree_node *addresslist_anchor  = NULL;
 369 int     addresslist_count      = 0;
 370 gid_t  *admin_groups           = NULL;
 371 BOOL    admin_user             = FALSE;
 372 BOOL    allow_auth_unadvertised= FALSE;
 373 BOOL    allow_domain_literals  = FALSE;
 374 BOOL    allow_mx_to_ip         = FALSE;
 375 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 376 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 377 BOOL    allow_utf8_domains     = FALSE;
 378 uschar *authenticated_fail_id  = NULL;
 379 uschar *authenticated_id       = NULL;
 380 uschar *authenticated_sender   = NULL;
 381 BOOL    authentication_failed  = FALSE;
 382 auth_instance  *auths          = NULL;
 383 uschar *auth_advertise_hosts   = US"*";
 384 auth_instance auth_defaults    = {
 385     NULL,                      /* chain pointer */
 386     NULL,                      /* name */
 387     NULL,                      /* info */
 388     NULL,                      /* private options block pointer */
 389     NULL,                      /* driver_name */
 390     NULL,                      /* advertise_condition */
 391     NULL,                      /* client_condition */
 392     NULL,                      /* public_name */
 393     NULL,                      /* set_id */
 394     NULL,                      /* set_client_id */
 395     NULL,                      /* server_mail_auth_condition */
 396     NULL,                      /* server_debug_string */
 397     NULL,                      /* server_condition */
 398     FALSE,                     /* client */
 399     FALSE,                     /* server */
 400     FALSE                      /* advertised */
 401 };
 402
 403 uschar *auth_defer_msg         = US"reason not recorded";
 404 uschar *auth_defer_user_msg    = US"";
 405 uschar *auth_vars[AUTH_VARS];
 406 int     auto_thaw              = 0;
 407 #ifdef WITH_CONTENT_SCAN
 408 BOOL    av_failed              = FALSE;
 409 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 410 #endif
 411
 412 BOOL    background_daemon      = TRUE;
 413
 414 #if BASE_62 == 62
 415 uschar *base62_chars=
 416     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 417 #else
 418 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 419 #endif
 420
 421 uschar *bi_command             = NULL;
 422 uschar *big_buffer             = NULL;
 423 int     big_buffer_size        = BIG_BUFFER_SIZE;
 424 #ifdef EXPERIMENTAL_BRIGHTMAIL
 425 uschar *bmi_alt_location       = NULL;
 426 uschar *bmi_base64_tracker_verdict = NULL;
 427 uschar *bmi_base64_verdict     = NULL;
 428 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 429 int     bmi_deliver            = 1;
 430 int     bmi_run                = 0;
 431 uschar *bmi_verdicts           = NULL;
 432 #endif
 433 int     body_linecount         = 0;
 434 int     body_zerocount         = 0;
 435 uschar *bounce_message_file    = NULL;
 436 uschar *bounce_message_text    = NULL;
 437 uschar *bounce_recipient       = NULL;
 438 BOOL    bounce_return_body     = TRUE;
 439 BOOL    bounce_return_message  = TRUE;
 440 int     bounce_return_size_limit = 100*1024;
 441 uschar *bounce_sender_authentication = NULL;
 442 int     bsmtp_transaction_linecount = 0;
 443
 444 int     callout_cache_domain_positive_expire = 7*24*60*60;
 445 int     callout_cache_domain_negative_expire = 3*60*60;
 446 int     callout_cache_positive_expire = 24*60*60;
 447 int     callout_cache_negative_expire = 2*60*60;
 448 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 449 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 450 int     check_log_inodes       = 0;
 451 int     check_log_space        = 0;
 452 BOOL    check_rfc2047_length   = TRUE;
 453 int     check_spool_inodes     = 0;
 454 int     check_spool_space      = 0;
 455 uschar  *client_authenticator  = NULL;
 456 uschar  *client_authenticated_id = NULL;
 457 uschar  *client_authenticated_sender = NULL;
 458 int     clmacro_count          = 0;
 459 uschar *clmacros[MAX_CLMACROS];
 460 BOOL    config_changed         = FALSE;
 461 FILE   *config_file            = NULL;
 462 uschar *config_filename        = NULL;
 463 int     config_lineno          = 0;
 464 #ifdef CONFIGURE_GROUP
 465 gid_t   config_gid             = CONFIGURE_GROUP;
 466 #endif
 467 uschar *config_main_filelist   = US CONFIGURE_FILE
 468                          "\0<-----------Space to patch configure_filename->";
 469 uschar *config_main_filename   = NULL;
 470
 471 #ifdef CONFIGURE_OWNER
 472 uid_t   config_uid             = CONFIGURE_OWNER;
 473 #endif
 474
 475 int     connection_max_messages= -1;
 476 uschar *continue_hostname      = NULL;
 477 uschar *continue_host_address  = NULL;
 478 BOOL    continue_more          = FALSE;
 479 int     continue_sequence      = 1;
 480 uschar *continue_transport     = NULL;
 481
 482 uschar *csa_status             = NULL;
 483 BOOL    cutthrough_delivery    = FALSE;
 484 int     cutthrough_fd          = -1;
 485
 486 BOOL    daemon_listen          = FALSE;
 487 uschar *daemon_smtp_port       = US"smtp";
 488 int     daemon_startup_retries = 9;
 489 int     daemon_startup_sleep   = 30;
 490
 491 #ifdef EXPERIMENTAL_DCC
 492 BOOL    dcc_direct_add_header  = FALSE;
 493 uschar *dcc_header             = NULL;
 494 uschar *dcc_result             = NULL;
 495 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 496 uschar *dccifd_options         = US"header";
 497 #endif
 498
 499 BOOL    debug_daemon           = FALSE;
 500 int     debug_fd               = -1;
 501 FILE   *debug_file             = NULL;
 502 bit_table debug_options[]      = {
 503   { US"acl",            D_acl },
 504   { US"all",            D_all },
 505   { US"auth",           D_auth },
 506   { US"deliver",        D_deliver },
 507   { US"dns",            D_dns },
 508   { US"dnsbl",          D_dnsbl },
 509   { US"exec",           D_exec },
 510   { US"expand",         D_expand },
 511   { US"filter",         D_filter },
 512   { US"hints_lookup",   D_hints_lookup },
 513   { US"host_lookup",    D_host_lookup },
 514   { US"ident",          D_ident },
 515   { US"interface",      D_interface },
 516   { US"lists",          D_lists },
 517   { US"load",           D_load },
 518   { US"local_scan",     D_local_scan },
 519   { US"lookup",         D_lookup },
 520   { US"memory",         D_memory },
 521   { US"pid",            D_pid },
 522   { US"process_info",   D_process_info },
 523   { US"queue_run",      D_queue_run },
 524   { US"receive",        D_receive },
 525   { US"resolver",       D_resolver },
 526   { US"retry",          D_retry },
 527   { US"rewrite",        D_rewrite },
 528   { US"route",          D_route },
 529   { US"timestamp",      D_timestamp },
 530   { US"tls",            D_tls },
 531   { US"transport",      D_transport },
 532   { US"uid",            D_uid },
 533   { US"verify",         D_verify }
 534 };
 535 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 536 unsigned int debug_selector    = 0;
 537 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 538 uschar *delay_warning_condition=
 539   US"${if or {"
 540             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 541             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 542             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 543             "} {no}{yes}}";
 544 BOOL    delivery_date_remove   = TRUE;
 545 uschar *deliver_address_data   = NULL;
 546 int     deliver_datafile       = -1;
 547 uschar *deliver_domain         = NULL;
 548 uschar *deliver_domain_data    = NULL;
 549 uschar *deliver_domain_orig    = NULL;
 550 uschar *deliver_domain_parent  = NULL;
 551 BOOL    deliver_drop_privilege = FALSE;
 552 BOOL    deliver_firsttime      = FALSE;
 553 BOOL    deliver_force          = FALSE;
 554 BOOL    deliver_freeze         = FALSE;
 555 int     deliver_frozen_at      = 0;
 556 uschar *deliver_home           = NULL;
 557 uschar *deliver_host           = NULL;
 558 uschar *deliver_host_address   = NULL;
 559 uschar *deliver_in_buffer      = NULL;
 560 ino_t   deliver_inode          = 0;
 561 uschar *deliver_localpart      = NULL;
 562 uschar *deliver_localpart_data = NULL;
 563 uschar *deliver_localpart_orig = NULL;
 564 uschar *deliver_localpart_parent = NULL;
 565 uschar *deliver_localpart_prefix = NULL;
 566 uschar *deliver_localpart_suffix = NULL;
 567 BOOL    deliver_force_thaw     = FALSE;
 568 BOOL    deliver_manual_thaw    = FALSE;
 569 uschar *deliver_out_buffer     = NULL;
 570 int     deliver_queue_load_max = -1;
 571 address_item  *deliver_recipients = NULL;
 572 uschar *deliver_selectstring   = NULL;
 573 BOOL    deliver_selectstring_regex = FALSE;
 574 uschar *deliver_selectstring_sender = NULL;
 575 BOOL    deliver_selectstring_sender_regex = FALSE;
 576 #ifdef WITH_OLD_DEMIME
 577 int     demime_errorlevel      = 0;
 578 int     demime_ok              = 0;
 579 uschar *demime_reason          = NULL;
 580 #endif
 581 BOOL    disable_callout_flush  = FALSE;
 582 BOOL    disable_delay_flush    = FALSE;
 583 #ifdef ENABLE_DISABLE_FSYNC
 584 BOOL    disable_fsync          = FALSE;
 585 #endif
 586 BOOL    disable_ipv6           = FALSE;
 587 BOOL    disable_logging        = FALSE;
 588
 589 #ifndef DISABLE_DKIM
 590 uschar *dkim_cur_signer          = NULL;
 591 uschar *dkim_signers             = NULL;
 592 uschar *dkim_signing_domain      = NULL;
 593 uschar *dkim_signing_selector    = NULL;
 594 uschar *dkim_verify_signers      = US"$dkim_signers";
 595 BOOL    dkim_collect_input       = FALSE;
 596 BOOL    dkim_disable_verify      = FALSE;
 597 #endif
 598 #ifdef EXPERIMENTAL_DMARC
 599 BOOL    dmarc_has_been_checked  = FALSE;
 600 uschar *dmarc_ar_header         = NULL;
 601 uschar *dmarc_forensic_sender   = NULL;
 602 uschar *dmarc_history_file      = NULL;
 603 uschar *dmarc_status            = NULL;
 604 uschar *dmarc_status_text       = NULL;
 605 uschar *dmarc_tld_file          = NULL;
 606 uschar *dmarc_used_domain       = NULL;
 607 BOOL    dmarc_disable_verify    = FALSE;
 608 BOOL    dmarc_enable_forensic   = FALSE;
 609 #endif
 610
 611 uschar *dns_again_means_nonexist = NULL;
 612 int     dns_csa_search_limit   = 5;
 613 BOOL    dns_csa_use_reverse    = TRUE;
 614 uschar *dns_ipv4_lookup        = NULL;
 615 int     dns_retrans            = 0;
 616 int     dns_retry              = 0;
 617 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 618 int     dns_use_edns0          = -1; /* <0 = not coerced */
 619 uschar *dnslist_domain         = NULL;
 620 uschar *dnslist_matched        = NULL;
 621 uschar *dnslist_text           = NULL;
 622 uschar *dnslist_value          = NULL;
 623 tree_node *domainlist_anchor   = NULL;
 624 int     domainlist_count       = 0;
 625 BOOL    dont_deliver           = FALSE;
 626 BOOL    dot_ends               = TRUE;
 627 BOOL    drop_cr                = FALSE;         /* No longer used */
 628 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 629
 630 BOOL    enable_dollar_recipients = FALSE;
 631 BOOL    envelope_to_remove     = TRUE;
 632 int     errno_quota            = ERRNO_QUOTA;
 633 uschar *errors_copy            = NULL;
 634 int     error_handling         = ERRORS_SENDER;
 635 uschar *errors_reply_to        = NULL;
 636 int     errors_sender_rc       = EXIT_FAILURE;
 637
 638 gid_t   exim_gid               = EXIM_GID;
 639 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 640 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 641                         "\0<---------------Space to patch exim_path->";
 642 uid_t   exim_uid               = EXIM_UID;
 643 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 644 int     expand_forbid          = 0;
 645 int     expand_nlength[EXPAND_MAXN+1];
 646 int     expand_nmax            = -1;
 647 uschar *expand_nstring[EXPAND_MAXN+1];
 648 BOOL    expand_string_forcedfail = FALSE;
 649 uschar *expand_string_message;
 650 BOOL    extract_addresses_remove_arguments = TRUE;
 651 uschar *extra_local_interfaces = NULL;
 652
 653 int     fake_response          = OK;
 654 uschar *fake_response_text     = US"Your message has been rejected but is "
 655                                    "being kept for evaluation.\nIf it was a "
 656                                    "legitimate message, it may still be "
 657                                    "delivered to the target recipient(s).";
 658 int     filter_n[FILTER_VARIABLE_COUNT];
 659 BOOL    filter_running         = FALSE;
 660 int     filter_sn[FILTER_VARIABLE_COUNT];
 661 int     filter_test            = FTEST_NONE;
 662 uschar *filter_test_sfile      = NULL;
 663 uschar *filter_test_ufile      = NULL;
 664 uschar *filter_thisaddress     = NULL;
 665 int     finduser_retries       = 0;
 666 #ifdef WITH_OLD_DEMIME
 667 uschar *found_extension        = NULL;
 668 #endif
 669 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 670 uschar *freeze_tell            = NULL;
 671 uschar *freeze_tell_config     = NULL;
 672 uschar *fudged_queue_times     = US"";
 673
 674 uschar *gecos_name             = NULL;
 675 uschar *gecos_pattern          = NULL;
 676 rewrite_rule  *global_rewrite_rules = NULL;
 677
 678 uschar *headers_charset        = US HEADERS_CHARSET;
 679 int     header_insert_maxlen   = 64 * 1024;
 680 header_line  *header_last      = NULL;
 681 header_line  *header_list      = NULL;
 682 int     header_maxsize         = HEADER_MAXSIZE;
 683 int     header_line_maxsize    = 0;
 684
 685 header_name header_names[] = {
 686   { US"bcc",            3, TRUE,  htype_bcc },
 687   { US"cc",             2, TRUE,  htype_cc },
 688   { US"date",           4, TRUE,  htype_date },
 689   { US"delivery-date", 13, FALSE, htype_delivery_date },
 690   { US"envelope-to",   11, FALSE, htype_envelope_to },
 691   { US"from",           4, TRUE,  htype_from },
 692   { US"message-id",    10, TRUE,  htype_id },
 693   { US"received",       8, FALSE, htype_received },
 694   { US"reply-to",       8, FALSE, htype_reply_to },
 695   { US"return-path",   11, FALSE, htype_return_path },
 696   { US"sender",         6, TRUE,  htype_sender },
 697   { US"subject",        7, FALSE, htype_subject },
 698   { US"to",             2, TRUE,  htype_to }
 699 };
 700
 701 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 702
 703 BOOL    header_rewritten       = FALSE;
 704 uschar *helo_accept_junk_hosts = NULL;
 705 uschar *helo_allow_chars       = US"";
 706 uschar *helo_lookup_domains    = US"@ : @[]";
 707 uschar *helo_try_verify_hosts  = NULL;
 708 BOOL    helo_verified          = FALSE;
 709 BOOL    helo_verify_failed     = FALSE;
 710 uschar *helo_verify_hosts      = NULL;
 711 const uschar *hex_digits       = CUS"0123456789abcdef";
 712 uschar *hold_domains           = NULL;
 713 BOOL    host_checking          = FALSE;
 714 BOOL    host_checking_callout  = FALSE;
 715 uschar *host_data              = NULL;
 716 BOOL    host_find_failed_syntax= FALSE;
 717 uschar *host_lookup            = NULL;
 718 BOOL    host_lookup_deferred   = FALSE;
 719 BOOL    host_lookup_failed     = FALSE;
 720 uschar *host_lookup_order      = US"bydns:byaddr";
 721 uschar *host_lookup_msg        = US"";
 722 int     host_number            = 0;
 723 uschar *host_number_string     = NULL;
 724 uschar *host_reject_connection = NULL;
 725 tree_node *hostlist_anchor     = NULL;
 726 int     hostlist_count         = 0;
 727 uschar *hosts_treat_as_local   = NULL;
 728 uschar *hosts_connection_nolog = NULL;
 729
 730 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 731 BOOL    ignore_fromline_local  = FALSE;
 732 uschar *ignore_fromline_hosts  = NULL;
 733 BOOL    inetd_wait_mode        = FALSE;
 734 int     inetd_wait_timeout     = -1;
 735 uschar *interface_address      = NULL;
 736 int     interface_port         = -1;
 737 BOOL    is_inetd               = FALSE;
 738 uschar *iterate_item           = NULL;
 739
 740 int     journal_fd             = -1;
 741
 742 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 743
 744 uschar *eldap_dn               = NULL;
 745 int     load_average           = -2;
 746 BOOL    local_error_message    = FALSE;
 747 BOOL    local_from_check       = TRUE;
 748 uschar *local_from_prefix      = NULL;
 749 uschar *local_from_suffix      = NULL;
 750
 751 #if HAVE_IPV6
 752 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 753 #else
 754 uschar *local_interfaces       = US"0.0.0.0";
 755 #endif
 756
 757 uschar *local_scan_data        = NULL;
 758 int     local_scan_timeout     = 5*60;
 759 BOOL    local_sender_retain    = FALSE;
 760 gid_t   local_user_gid         = (gid_t)(-1);
 761 uid_t   local_user_uid         = (uid_t)(-1);
 762
 763 tree_node *localpartlist_anchor= NULL;
 764 int     localpartlist_count    = 0;
 765 uschar *log_buffer             = NULL;
 766 unsigned int log_extra_selector = LX_default;
 767 uschar *log_file_path          = US LOG_FILE_PATH
 768                            "\0<--------------Space to patch log_file_path->";
 769
 770 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 771 are the ones that get put into log_write_selector. They can be used in calls to
 772 log_write() to test for the bit. The options with LX_xxx identifiers have
 773 values greater than 0x80000000 and are put into log_extra_selector (without the
 774 top bit). They are never used in calls to log_write(), but are tested
 775 independently. This separation became necessary when the number of log
 776 selectors was getting close to filling a 32-bit word. */
 777
 778 /* Note that this list must be in alphabetical order. */
 779
 780 bit_table log_options[]        = {
 781   { US"8bitmime",                     LX_8bitmime },
 782   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 783   { US"address_rewrite",              L_address_rewrite },
 784   { US"all",                          L_all },
 785   { US"all_parents",                  L_all_parents },
 786   { US"arguments",                    LX_arguments },
 787   { US"connection_reject",            L_connection_reject },
 788   { US"delay_delivery",               L_delay_delivery },
 789   { US"deliver_time",                 LX_deliver_time },
 790   { US"delivery_size",                LX_delivery_size },
 791   { US"dnslist_defer",                L_dnslist_defer },
 792   { US"etrn",                         L_etrn },
 793   { US"host_lookup_failed",           L_host_lookup_failed },
 794   { US"ident_timeout",                LX_ident_timeout },
 795   { US"incoming_interface",           LX_incoming_interface },
 796   { US"incoming_port",                LX_incoming_port },
 797   { US"lost_incoming_connection",     L_lost_incoming_connection },
 798   { US"outgoing_port",                LX_outgoing_port },
 799   { US"pid",                          LX_pid },
 800 #ifdef EXPERIMENTAL_PROXY
 801   { US"proxy",                        LX_proxy },
 802 #endif
 803   { US"queue_run",                    L_queue_run },
 804   { US"queue_time",                   LX_queue_time },
 805   { US"queue_time_overall",           LX_queue_time_overall },
 806   { US"received_recipients",          LX_received_recipients },
 807   { US"received_sender",              LX_received_sender },
 808   { US"rejected_header",              LX_rejected_header },
 809   { US"rejected_headers",             LX_rejected_header },
 810   { US"retry_defer",                  L_retry_defer },
 811   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 812   { US"sender_on_delivery",           LX_sender_on_delivery },
 813   { US"sender_verify_fail",           LX_sender_verify_fail },
 814   { US"size_reject",                  L_size_reject },
 815   { US"skip_delivery",                L_skip_delivery },
 816   { US"smtp_confirmation",            LX_smtp_confirmation },
 817   { US"smtp_connection",              L_smtp_connection },
 818   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 819   { US"smtp_mailauth",                LX_smtp_mailauth },
 820   { US"smtp_no_mail",                 LX_smtp_no_mail },
 821   { US"smtp_protocol_error",          L_smtp_protocol_error },
 822   { US"smtp_syntax_error",            L_smtp_syntax_error },
 823   { US"subject",                      LX_subject },
 824   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 825   { US"tls_cipher",                   LX_tls_cipher },
 826   { US"tls_peerdn",                   LX_tls_peerdn },
 827   { US"tls_sni",                      LX_tls_sni },
 828   { US"unknown_in_list",              LX_unknown_in_list }
 829 };
 830
 831 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 832 int     log_reject_target      = 0;
 833 uschar *log_selector_string    = NULL;
 834 FILE   *log_stderr             = NULL;
 835 BOOL    log_testing_mode       = FALSE;
 836 BOOL    log_timezone           = FALSE;
 837 unsigned int log_write_selector= L_default;
 838 uschar *login_sender_address   = NULL;
 839 int     lookup_open_max        = 25;
 840 uschar *lookup_value           = NULL;
 841
 842 macro_item  *macros            = NULL;
 843 uschar *mailstore_basename     = NULL;
 844 #ifdef WITH_CONTENT_SCAN
 845 uschar *malware_name           = NULL;  /* Virus Name */
 846 #endif
 847 int     max_received_linelength= 0;
 848 int     max_username_length    = 0;
 849 int     message_age            = 0;
 850 uschar *message_body           = NULL;
 851 uschar *message_body_end       = NULL;
 852 BOOL    message_body_newlines  = FALSE;
 853 int     message_body_size      = 0;
 854 int     message_body_visible   = 500;
 855 int     message_ended          = END_NOTSTARTED;
 856 uschar *message_headers        = NULL;
 857 uschar *message_id;
 858 uschar *message_id_domain      = NULL;
 859 uschar *message_id_text        = NULL;
 860 struct timeval message_id_tv   = { 0, 0 };
 861 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 862 uschar *message_id_external;
 863 int     message_linecount      = 0;
 864 BOOL    message_logs           = TRUE;
 865 int     message_size           = 0;
 866 uschar *message_size_limit     = US"50M";
 867 uschar  message_subdir[2]      = { 0, 0 };
 868 uschar *message_reference      = NULL;
 869
 870 /* MIME ACL expandables */
 871 #ifdef WITH_CONTENT_SCAN
 872 int     mime_anomaly_level     = 0;
 873 const uschar *mime_anomaly_text      = NULL;
 874 uschar *mime_boundary          = NULL;
 875 uschar *mime_charset           = NULL;
 876 uschar *mime_content_description = NULL;
 877 uschar *mime_content_disposition = NULL;
 878 uschar *mime_content_id        = NULL;
 879 unsigned int mime_content_size = 0;
 880 uschar *mime_content_transfer_encoding = NULL;
 881 uschar *mime_content_type      = NULL;
 882 uschar *mime_decoded_filename  = NULL;
 883 uschar *mime_filename          = NULL;
 884 int     mime_is_multipart      = 0;
 885 int     mime_is_coverletter    = 0;
 886 int     mime_is_rfc822         = 0;
 887 int     mime_part_count        = -1;
 888 #endif
 889
 890 BOOL    mua_wrapper            = FALSE;
 891
 892 uid_t  *never_users            = NULL;
 893 #ifdef WITH_CONTENT_SCAN
 894 BOOL    no_mbox_unspool        = FALSE;
 895 #endif
 896 BOOL    no_multiline_responses = FALSE;
 897
 898 uid_t   original_euid;
 899 gid_t   originator_gid;
 900 uschar *originator_login       = NULL;
 901 uschar *originator_name        = NULL;
 902 uid_t   originator_uid;
 903 uschar *override_local_interfaces = NULL;
 904 uschar *override_pid_file_path = NULL;
 905
 906 BOOL    parse_allow_group      = FALSE;
 907 BOOL    parse_found_group      = FALSE;
 908 uschar *percent_hack_domains   = NULL;
 909 uschar *pid_file_path          = US PID_FILE_PATH
 910                            "\0<--------------Space to patch pid_file_path->";
 911 BOOL    pipelining_enable      = TRUE;
 912 uschar *pipelining_advertise_hosts = US"*";
 913 BOOL    preserve_message_logs  = FALSE;
 914 uschar *primary_hostname       = NULL;
 915 BOOL    print_topbitchars      = FALSE;
 916 uschar  process_info[PROCESS_INFO_SIZE];
 917 int     process_info_len       = 0;
 918 uschar *process_log_path       = NULL;
 919 BOOL    prod_requires_admin    = TRUE;
 920
 921 #ifdef EXPERIMENTAL_PROXY
 922 uschar *proxy_host_address     = US"";
 923 int     proxy_host_port        = 0;
 924 uschar *proxy_required_hosts   = US"";
 925 BOOL    proxy_session          = FALSE;
 926 BOOL    proxy_session_failed   = FALSE;
 927 #endif
 928
 929 uschar *prvscheck_address      = NULL;
 930 uschar *prvscheck_keynum       = NULL;
 931 uschar *prvscheck_result       = NULL;
 932
 933
 934 uschar *qualify_domain_recipient = NULL;
 935 uschar *qualify_domain_sender  = NULL;
 936 BOOL    queue_2stage           = FALSE;
 937 uschar *queue_domains          = NULL;
 938 int     queue_interval         = -1;
 939 BOOL    queue_list_requires_admin = TRUE;
 940 BOOL    queue_only             = FALSE;
 941 uschar *queue_only_file        = NULL;
 942 int     queue_only_load        = -1;
 943 BOOL    queue_only_load_latch  = TRUE;
 944 BOOL    queue_only_override    = TRUE;
 945 BOOL    queue_only_policy      = FALSE;
 946 BOOL    queue_run_first_delivery = FALSE;
 947 BOOL    queue_run_force        = FALSE;
 948 BOOL    queue_run_in_order     = FALSE;
 949 BOOL    queue_run_local        = FALSE;
 950 int     queue_run_max          = 5;
 951 pid_t   queue_run_pid          = (pid_t)0;
 952 int     queue_run_pipe         = -1;
 953 BOOL    queue_running          = FALSE;
 954 BOOL    queue_smtp             = FALSE;
 955 uschar *queue_smtp_domains     = NULL;
 956
 957 unsigned int random_seed       = 0;
 958 tree_node *ratelimiters_cmd    = NULL;
 959 tree_node *ratelimiters_conn   = NULL;
 960 tree_node *ratelimiters_mail   = NULL;
 961 uschar *raw_active_hostname    = NULL;
 962 uschar *raw_sender             = NULL;
 963 uschar **raw_recipients        = NULL;
 964 int     raw_recipients_count   = 0;
 965
 966 int     rcpt_count             = 0;
 967 int     rcpt_fail_count        = 0;
 968 int     rcpt_defer_count       = 0;
 969 gid_t   real_gid;
 970 uid_t   real_uid;
 971 BOOL    really_exim            = TRUE;
 972 BOOL    receive_call_bombout   = FALSE;
 973 int     receive_linecount      = 0;
 974 int     receive_messagecount   = 0;
 975 int     receive_timeout        = 0;
 976 int     received_count         = 0;
 977 uschar *received_for           = NULL;
 978
 979 /*  This is the default text for Received headers generated by Exim. The
 980 date  will be automatically added on the end. */
 981
 982 uschar *received_header_text   = US
 983      "Received: "
 984      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 985      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 986      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 987      "by $primary_hostname "
 988      "${if def:received_protocol {with $received_protocol}} "
 989      #ifdef SUPPORT_TLS
 990      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 991      #endif
 992      "(Exim $version_number)\n\t"
 993      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 994      "id $message_exim_id"
 995      "${if def:received_for {\n\tfor $received_for}}"
 996      "\0<---------------Space to patch received_header_text->";
 997
 998 int     received_headers_max   = 30;
 999 uschar *received_protocol      = NULL;
1000 int     received_time          = 0;
1001 uschar *recipient_data         = NULL;
1002 uschar *recipient_unqualified_hosts = NULL;
1003 uschar *recipient_verify_failure = NULL;
1004 int     recipients_count       = 0;
1005 BOOL    recipients_discarded   = FALSE;
1006 recipient_item  *recipients_list = NULL;
1007 int     recipients_list_max    = 0;
1008 int     recipients_max         = 0;
1009 BOOL    recipients_max_reject  = FALSE;
1010 const pcre *regex_AUTH         = NULL;
1011 const pcre *regex_check_dns_names = NULL;
1012 const pcre *regex_From         = NULL;
1013 const pcre *regex_IGNOREQUOTA  = NULL;
1014 const pcre *regex_PIPELINING   = NULL;
1015 const pcre *regex_SIZE         = NULL;
1016 const pcre *regex_smtp_code    = NULL;
1017 const pcre *regex_ismsgid      = NULL;
1018 #ifdef WHITELIST_D_MACROS
1019 const pcre *regex_whitelisted_macro = NULL;
1020 #endif
1021 #ifdef WITH_CONTENT_SCAN
1022 uschar *regex_match_string     = NULL;
1023 #endif
1024 int     remote_delivery_count  = 0;
1025 int     remote_max_parallel    = 2;
1026 uschar *remote_sort_domains    = NULL;
1027 int     retry_data_expire      = 7*24*60*60;
1028 int     retry_interval_max     = 24*60*60;
1029 int     retry_maximum_timeout  = 0;        /* set from retry config */
1030 retry_config  *retries         = NULL;
1031 uschar *return_path            = NULL;
1032 BOOL    return_path_remove     = TRUE;
1033 int     rewrite_existflags     = 0;
1034 uschar *rfc1413_hosts          = US"*";
1035 int     rfc1413_query_timeout  = 5;
1036 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1037 uid_t   root_gid               = ROOT_GID;
1038 uid_t   root_uid               = ROOT_UID;
1039
1040 router_instance  *routers  = NULL;
1041 router_instance  router_defaults = {
1042     NULL,                      /* chain pointer */
1043     NULL,                      /* name */
1044     NULL,                      /* info */
1045     NULL,                      /* private options block pointer */
1046     NULL,                      /* driver name */
1047
1048     NULL,                      /* address_data */
1049 #ifdef EXPERIMENTAL_BRIGHTMAIL
1050     NULL,                      /* bmi_rule */
1051 #endif
1052     NULL,                      /* cannot_route_message */
1053     NULL,                      /* condition */
1054     NULL,                      /* current_directory */
1055     NULL,                      /* debug_string */
1056     NULL,                      /* domains */
1057     NULL,                      /* errors_to */
1058     NULL,                      /* expand_gid */
1059     NULL,                      /* expand_uid */
1060     NULL,                      /* expand_more */
1061     NULL,                      /* expand_unseen */
1062     NULL,                      /* extra_headers */
1063     NULL,                      /* fallback_hosts */
1064     NULL,                      /* home_directory */
1065     NULL,                      /* ignore_target_hosts */
1066     NULL,                      /* local_parts */
1067     NULL,                      /* pass_router_name */
1068     NULL,                      /* prefix */
1069     NULL,                      /* redirect_router_name */
1070     NULL,                      /* remove_headers */
1071     NULL,                      /* require_files */
1072     NULL,                      /* router_home_directory */
1073     US"freeze",                /* self */
1074     NULL,                      /* senders */
1075     NULL,                      /* suffix */
1076     NULL,                      /* translate_ip_address */
1077     NULL,                      /* transport_name */
1078
1079     TRUE,                      /* address_test */
1080 #ifdef EXPERIMENTAL_BRIGHTMAIL
1081     FALSE,                     /* bmi_deliver_alternate */
1082     FALSE,                     /* bmi_deliver_default */
1083     FALSE,                     /* bmi_dont_deliver */
1084 #endif
1085     TRUE,                      /* expn */
1086     FALSE,                     /* caseful_local_part */
1087     FALSE,                     /* check_local_user */
1088     FALSE,                     /* disable_logging */
1089     FALSE,                     /* fail_verify_recipient */
1090     FALSE,                     /* fail_verify_sender */
1091     FALSE,                     /* gid_set */
1092     FALSE,                     /* initgroups */
1093     TRUE_UNSET,                /* log_as_local */
1094     TRUE,                      /* more */
1095     FALSE,                     /* pass_on_timeout */
1096     FALSE,                     /* prefix_optional */
1097     TRUE,                      /* repeat_use */
1098     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1099     FALSE,                     /* same_domain_copy_routing */
1100     FALSE,                     /* self_rewrite */
1101     FALSE,                     /* suffix_optional */
1102     FALSE,                     /* verify_only */
1103     TRUE,                      /* verify_recipient */
1104     TRUE,                      /* verify_sender */
1105     FALSE,                     /* uid_set */
1106     FALSE,                     /* unseen */
1107
1108     self_freeze,               /* self_code */
1109     (uid_t)(-1),               /* uid */
1110     (gid_t)(-1),               /* gid */
1111
1112     NULL,                      /* fallback_hostlist */
1113     NULL,                      /* transport instance */
1114     NULL,                      /* pass_router */
1115     NULL                       /* redirect_router */
1116 };
1117
1118 uschar *router_name            = NULL;
1119
1120 ip_address_item *running_interfaces = NULL;
1121 BOOL    running_in_test_harness = FALSE;
1122
1123 /* This is a weird one. The following string gets patched in the binary by the
1124 script that sets up a copy of Exim for running in the test harness. It seems
1125 that compilers are now clever, and share constant strings if they can.
1126 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1127 make use of the end of this string in order to save space. So the patching then
1128 wrecks this. We defeat this optimization by adding some additional characters
1129 onto the end of the string. */
1130
1131 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1132
1133 int     runrc                  = 0;
1134
1135 uschar *search_error_message   = NULL;
1136 BOOL    search_find_defer      = FALSE;
1137 uschar *self_hostname          = NULL;
1138 uschar *sender_address         = NULL;
1139 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1140 uschar *sender_address_data    = NULL;
1141 BOOL    sender_address_forced  = FALSE;
1142 uschar *sender_address_unrewritten = NULL;
1143 uschar *sender_data            = NULL;
1144 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1145 uschar *sender_fullhost        = NULL;
1146 uschar *sender_helo_name       = NULL;
1147 uschar **sender_host_aliases   = &no_aliases;
1148 uschar *sender_host_address    = NULL;
1149 uschar *sender_host_authenticated = NULL;
1150 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1151 BOOL    sender_host_dnssec     = FALSE;
1152 uschar *sender_host_name       = NULL;
1153 int     sender_host_port       = 0;
1154 BOOL    sender_host_notsocket  = FALSE;
1155 BOOL    sender_host_unknown    = FALSE;
1156 uschar *sender_ident           = NULL;
1157 BOOL    sender_local           = FALSE;
1158 BOOL    sender_name_forced     = FALSE;
1159 uschar *sender_rate            = NULL;
1160 uschar *sender_rate_limit      = NULL;
1161 uschar *sender_rate_period     = NULL;
1162 uschar *sender_rcvhost         = NULL;
1163 BOOL    sender_set_untrusted   = FALSE;
1164 uschar *sender_unqualified_hosts = NULL;
1165 uschar *sender_verify_failure = NULL;
1166 address_item *sender_verified_list  = NULL;
1167 address_item *sender_verified_failed = NULL;
1168 int     sender_verified_rc     = -1;
1169 BOOL    sender_verified_responded = FALSE;
1170 uschar *sending_ip_address     = NULL;
1171 int     sending_port           = -1;
1172 SIGNAL_BOOL sigalrm_seen       = FALSE;
1173 uschar **sighup_argv           = NULL;
1174 int     smtp_accept_count      = 0;
1175 BOOL    smtp_accept_keepalive  = TRUE;
1176 int     smtp_accept_max        = 20;
1177 int     smtp_accept_max_nonmail= 10;
1178 uschar *smtp_accept_max_nonmail_hosts = US"*";
1179 int     smtp_accept_max_per_connection = 1000;
1180 uschar *smtp_accept_max_per_host = NULL;
1181 int     smtp_accept_queue      = 0;
1182 int     smtp_accept_queue_per_connection = 10;
1183 int     smtp_accept_reserve    = 0;
1184 uschar *smtp_active_hostname   = NULL;
1185 BOOL    smtp_authenticated     = FALSE;
1186 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1187                              "Exim $version_number $tod_full"
1188                              "\0<---------------Space to patch smtp_banner->";
1189 BOOL    smtp_batched_input     = FALSE;
1190 BOOL    smtp_check_spool_space = TRUE;
1191 int     smtp_ch_index          = 0;
1192 uschar *smtp_cmd_argument      = NULL;
1193 uschar *smtp_cmd_buffer        = NULL;
1194 time_t  smtp_connection_start  = 0;
1195 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1196 int     smtp_connect_backlog   = 20;
1197 double  smtp_delay_mail        = 0.0;
1198 double  smtp_delay_rcpt        = 0.0;
1199 BOOL    smtp_enforce_sync      = TRUE;
1200 FILE   *smtp_in                = NULL;
1201 BOOL    smtp_input             = FALSE;
1202 int     smtp_load_reserve      = -1;
1203 int     smtp_mailcmd_count     = 0;
1204 FILE   *smtp_out               = NULL;
1205 uschar *smtp_etrn_command      = NULL;
1206 BOOL    smtp_etrn_serialize    = TRUE;
1207 int     smtp_max_synprot_errors= 3;
1208 int     smtp_max_unknown_commands = 3;
1209 uschar *smtp_notquit_reason    = NULL;
1210 uschar *smtp_ratelimit_hosts   = NULL;
1211 uschar *smtp_ratelimit_mail    = NULL;
1212 uschar *smtp_ratelimit_rcpt    = NULL;
1213 uschar *smtp_read_error        = US"";
1214 int     smtp_receive_timeout   = 5*60;
1215 uschar *smtp_reserve_hosts     = NULL;
1216 BOOL    smtp_return_error_details = FALSE;
1217 int     smtp_rlm_base          = 0;
1218 double  smtp_rlm_factor        = 0.0;
1219 int     smtp_rlm_limit         = 0;
1220 int     smtp_rlm_threshold     = INT_MAX;
1221 int     smtp_rlr_base          = 0;
1222 double  smtp_rlr_factor        = 0.0;
1223 int     smtp_rlr_limit         = 0;
1224 int     smtp_rlr_threshold     = INT_MAX;
1225 BOOL    smtp_use_pipelining    = FALSE;
1226 BOOL    smtp_use_size          = FALSE;
1227
1228 #ifdef WITH_CONTENT_SCAN
1229 uschar *spamd_address          = US"127.0.0.1 783";
1230 uschar *spam_bar               = NULL;
1231 uschar *spam_report            = NULL;
1232 uschar *spam_score             = NULL;
1233 uschar *spam_score_int         = NULL;
1234 #endif
1235 #ifdef EXPERIMENTAL_SPF
1236 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1237 uschar *spf_header_comment     = NULL;
1238 uschar *spf_received           = NULL;
1239 uschar *spf_result             = NULL;
1240 uschar *spf_smtp_comment       = NULL;
1241 #endif
1242
1243 BOOL    split_spool_directory  = FALSE;
1244 uschar *spool_directory        = US SPOOL_DIRECTORY
1245                            "\0<--------------Space to patch spool_directory->";
1246 #ifdef EXPERIMENTAL_SRS
1247 uschar *srs_config             = NULL;
1248 uschar *srs_db_address         = NULL;
1249 uschar *srs_db_key             = NULL;
1250 int     srs_hashlength         = 6;
1251 int     srs_hashmin            = -1;
1252 int     srs_maxage             = 31;
1253 uschar *srs_orig_recipient     = NULL;
1254 uschar *srs_orig_sender        = NULL;
1255 uschar *srs_recipient          = NULL;
1256 uschar *srs_secrets            = NULL;
1257 uschar *srs_status             = NULL;
1258 BOOL    srs_usehash            = TRUE;
1259 BOOL    srs_usetimestamp       = TRUE;
1260 #endif
1261 BOOL    strict_acl_vars        = FALSE;
1262 int     string_datestamp_offset= -1;
1263 int     string_datestamp_length= 0;
1264 int     string_datestamp_type  = -1;
1265 BOOL    strip_excess_angle_brackets = FALSE;
1266 BOOL    strip_trailing_dot     = FALSE;
1267 uschar *submission_domain      = NULL;
1268 BOOL    submission_mode        = FALSE;
1269 uschar *submission_name        = NULL;
1270 BOOL    suppress_local_fixups  = FALSE;
1271 BOOL    suppress_local_fixups_default = FALSE;
1272 BOOL    synchronous_delivery   = FALSE;
1273 BOOL    syslog_duplication     = TRUE;
1274 int     syslog_facility        = LOG_MAIL;
1275 uschar *syslog_processname     = US"exim";
1276 BOOL    syslog_timestamp       = TRUE;
1277 uschar *system_filter          = NULL;
1278
1279 uschar *system_filter_directory_transport = NULL;
1280 uschar *system_filter_file_transport = NULL;
1281 uschar *system_filter_pipe_transport = NULL;
1282 uschar *system_filter_reply_transport = NULL;
1283
1284 gid_t   system_filter_gid      = 0;
1285 BOOL    system_filter_gid_set  = FALSE;
1286 uid_t   system_filter_uid      = (uid_t)-1;
1287 BOOL    system_filter_uid_set  = FALSE;
1288 BOOL    system_filtering       = FALSE;
1289
1290 BOOL    tcp_nodelay            = TRUE;
1291 #ifdef USE_TCP_WRAPPERS
1292 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1293 #endif
1294 int     test_harness_load_avg  = 0;
1295 int     thismessage_size_limit = 0;
1296 int     timeout_frozen_after   = 0;
1297 BOOL    timestamps_utc         = FALSE;
1298
1299 #ifdef EXPERIMENTAL_TPDA
1300 int     tpda_defer_errno        = 0;
1301 uschar *tpda_defer_errstr       = NULL;
1302 uschar *tpda_delivery_ip        = NULL;
1303 int     tpda_delivery_port      = 0;
1304 uschar *tpda_delivery_fqdn      = NULL;
1305 uschar *tpda_delivery_local_part= NULL;
1306 uschar *tpda_delivery_domain    = NULL;
1307 uschar *tpda_delivery_confirmation = NULL;
1308 #endif
1309
1310 transport_instance  *transports = NULL;
1311
1312 transport_instance  transport_defaults = {
1313     NULL,                     /* chain pointer */
1314     NULL,                     /* name */
1315     NULL,                     /* info */
1316     NULL,                     /* private options block pointer */
1317     NULL,                     /* driver name */
1318     NULL,                     /* setup entry point */
1319     1,                        /* batch_max */
1320     NULL,                     /* batch_id */
1321     NULL,                     /* home_dir */
1322     NULL,                     /* current_dir */
1323     TRUE,                     /* multi-domain */
1324     FALSE,                    /* overrides_hosts */
1325     100,                      /* max_addresses */
1326     500,                      /* connection_max_messages */
1327     FALSE,                    /* deliver_as_creator */
1328     FALSE,                    /* disable_logging */
1329     FALSE,                    /* initgroups */
1330     FALSE,                    /* uid_set */
1331     FALSE,                    /* gid_set */
1332     (uid_t)(-1),              /* uid */
1333     (gid_t)(-1),              /* gid */
1334     NULL,                     /* expand_uid */
1335     NULL,                     /* expand_gid */
1336     NULL,                     /* warn_message */
1337     NULL,                     /* shadow */
1338     NULL,                     /* shadow_condition */
1339     NULL,                     /* filter_command */
1340     NULL,                     /* add_headers */
1341     NULL,                     /* remove_headers */
1342     NULL,                     /* return_path */
1343     NULL,                     /* debug_string */
1344     NULL,                     /* message_size_limit */
1345     NULL,                     /* headers_rewrite */
1346     NULL,                     /* rewrite_rules */
1347     0,                        /* rewrite_existflags */
1348     300,                      /* filter_timeout */
1349     FALSE,                    /* body_only */
1350     FALSE,                    /* delivery_date_add */
1351     FALSE,                    /* envelope_to_add */
1352     FALSE,                    /* headers_only */
1353     FALSE,                    /* rcpt_include_affixes */
1354     FALSE,                    /* return_path_add */
1355     FALSE,                    /* return_output */
1356     FALSE,                    /* return_fail_output */
1357     FALSE,                    /* log_output */
1358     FALSE,                    /* log_fail_output */
1359     FALSE,                    /* log_defer_output */
1360     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1361                                  1 nor 0 so can detect unset */
1362 };
1363
1364 int     transport_count;
1365 uschar *transport_name          = NULL;
1366 int     transport_newlines;
1367 uschar **transport_filter_argv  = NULL;
1368 int     transport_filter_timeout;
1369 BOOL    transport_filter_timed_out = FALSE;
1370 int     transport_write_timeout= 0;
1371
1372 tree_node  *tree_dns_fails     = NULL;
1373 tree_node  *tree_duplicates    = NULL;
1374 tree_node  *tree_nonrecipients = NULL;
1375 tree_node  *tree_unusable      = NULL;
1376
1377 BOOL    trusted_caller         = FALSE;
1378 BOOL    trusted_config         = TRUE;
1379 gid_t  *trusted_groups         = NULL;
1380 uid_t  *trusted_users          = NULL;
1381 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1382
1383 uschar *unknown_login          = NULL;
1384 uschar *unknown_username       = NULL;
1385 uschar *untrusted_set_sender   = NULL;
1386
1387 /*  A regex for matching a "From_" line in an incoming message, in the form
1388
1389     From ph10 Fri Jan  5 12:35 GMT 1996
1390
1391 which  the "mail" commands send to the MTA (undocumented, of course), or in
1392 the  form
1393
1394     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1395
1396 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1397 Because  of variations in time formats, just match up to the minutes. That
1398 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1399 so  just require one digit for hours and minutes. The weekday is also absent
1400 in  some forms. */
1401
1402 uschar *uucp_from_pattern      = US
1403    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1404    "(?:"                                          /* Non-extracting bracket */
1405    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1406    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1407    ")"                                            /* End alternation */
1408    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1409
1410 uschar *uucp_from_sender       = US"$1";
1411
1412 uschar *warn_message_file      = NULL;
1413 uschar *warnmsg_delay          = NULL;
1414 uschar *warnmsg_recipients     = NULL;
1415 BOOL    write_rejectlog        = TRUE;
1416
1417 uschar *version_copyright      =
1418  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1419    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1420 uschar *version_date           = US"?";
1421 uschar *version_cnumber        = US"????";
1422 uschar *version_string         = US"?";
1423
1424 int     warning_count          = 0;
1425
1426 /*  End of globals.c */