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_domain_policy     = NULL;
 602 uschar *dmarc_forensic_sender   = NULL;
 603 uschar *dmarc_history_file      = NULL;
 604 uschar *dmarc_status            = NULL;
 605 uschar *dmarc_status_text       = NULL;
 606 uschar *dmarc_tld_file          = NULL;
 607 uschar *dmarc_used_domain       = NULL;
 608 BOOL    dmarc_disable_verify    = FALSE;
 609 BOOL    dmarc_enable_forensic   = FALSE;
 610 #endif
 611
 612 uschar *dns_again_means_nonexist = NULL;
 613 int     dns_csa_search_limit   = 5;
 614 BOOL    dns_csa_use_reverse    = TRUE;
 615 uschar *dns_ipv4_lookup        = NULL;
 616 int     dns_retrans            = 0;
 617 int     dns_retry              = 0;
 618 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 619 int     dns_use_edns0          = -1; /* <0 = not coerced */
 620 uschar *dnslist_domain         = NULL;
 621 uschar *dnslist_matched        = NULL;
 622 uschar *dnslist_text           = NULL;
 623 uschar *dnslist_value          = NULL;
 624 tree_node *domainlist_anchor   = NULL;
 625 int     domainlist_count       = 0;
 626 BOOL    dont_deliver           = FALSE;
 627 BOOL    dot_ends               = TRUE;
 628 BOOL    drop_cr                = FALSE;         /* No longer used */
 629 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 630
 631 BOOL    enable_dollar_recipients = FALSE;
 632 BOOL    envelope_to_remove     = TRUE;
 633 int     errno_quota            = ERRNO_QUOTA;
 634 uschar *errors_copy            = NULL;
 635 int     error_handling         = ERRORS_SENDER;
 636 uschar *errors_reply_to        = NULL;
 637 int     errors_sender_rc       = EXIT_FAILURE;
 638
 639 gid_t   exim_gid               = EXIM_GID;
 640 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 641 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 642                         "\0<---------------Space to patch exim_path->";
 643 uid_t   exim_uid               = EXIM_UID;
 644 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 645 int     expand_forbid          = 0;
 646 int     expand_nlength[EXPAND_MAXN+1];
 647 int     expand_nmax            = -1;
 648 uschar *expand_nstring[EXPAND_MAXN+1];
 649 BOOL    expand_string_forcedfail = FALSE;
 650 uschar *expand_string_message;
 651 BOOL    extract_addresses_remove_arguments = TRUE;
 652 uschar *extra_local_interfaces = NULL;
 653
 654 int     fake_response          = OK;
 655 uschar *fake_response_text     = US"Your message has been rejected but is "
 656                                    "being kept for evaluation.\nIf it was a "
 657                                    "legitimate message, it may still be "
 658                                    "delivered to the target recipient(s).";
 659 int     filter_n[FILTER_VARIABLE_COUNT];
 660 BOOL    filter_running         = FALSE;
 661 int     filter_sn[FILTER_VARIABLE_COUNT];
 662 int     filter_test            = FTEST_NONE;
 663 uschar *filter_test_sfile      = NULL;
 664 uschar *filter_test_ufile      = NULL;
 665 uschar *filter_thisaddress     = NULL;
 666 int     finduser_retries       = 0;
 667 #ifdef WITH_OLD_DEMIME
 668 uschar *found_extension        = NULL;
 669 #endif
 670 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 671 uschar *freeze_tell            = NULL;
 672 uschar *freeze_tell_config     = NULL;
 673 uschar *fudged_queue_times     = US"";
 674
 675 uschar *gecos_name             = NULL;
 676 uschar *gecos_pattern          = NULL;
 677 rewrite_rule  *global_rewrite_rules = NULL;
 678
 679 uschar *headers_charset        = US HEADERS_CHARSET;
 680 int     header_insert_maxlen   = 64 * 1024;
 681 header_line  *header_last      = NULL;
 682 header_line  *header_list      = NULL;
 683 int     header_maxsize         = HEADER_MAXSIZE;
 684 int     header_line_maxsize    = 0;
 685
 686 header_name header_names[] = {
 687   { US"bcc",            3, TRUE,  htype_bcc },
 688   { US"cc",             2, TRUE,  htype_cc },
 689   { US"date",           4, TRUE,  htype_date },
 690   { US"delivery-date", 13, FALSE, htype_delivery_date },
 691   { US"envelope-to",   11, FALSE, htype_envelope_to },
 692   { US"from",           4, TRUE,  htype_from },
 693   { US"message-id",    10, TRUE,  htype_id },
 694   { US"received",       8, FALSE, htype_received },
 695   { US"reply-to",       8, FALSE, htype_reply_to },
 696   { US"return-path",   11, FALSE, htype_return_path },
 697   { US"sender",         6, TRUE,  htype_sender },
 698   { US"subject",        7, FALSE, htype_subject },
 699   { US"to",             2, TRUE,  htype_to }
 700 };
 701
 702 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 703
 704 BOOL    header_rewritten       = FALSE;
 705 uschar *helo_accept_junk_hosts = NULL;
 706 uschar *helo_allow_chars       = US"";
 707 uschar *helo_lookup_domains    = US"@ : @[]";
 708 uschar *helo_try_verify_hosts  = NULL;
 709 BOOL    helo_verified          = FALSE;
 710 BOOL    helo_verify_failed     = FALSE;
 711 uschar *helo_verify_hosts      = NULL;
 712 const uschar *hex_digits       = CUS"0123456789abcdef";
 713 uschar *hold_domains           = NULL;
 714 BOOL    host_checking          = FALSE;
 715 BOOL    host_checking_callout  = FALSE;
 716 uschar *host_data              = NULL;
 717 BOOL    host_find_failed_syntax= FALSE;
 718 uschar *host_lookup            = NULL;
 719 BOOL    host_lookup_deferred   = FALSE;
 720 BOOL    host_lookup_failed     = FALSE;
 721 uschar *host_lookup_order      = US"bydns:byaddr";
 722 uschar *host_lookup_msg        = US"";
 723 int     host_number            = 0;
 724 uschar *host_number_string     = NULL;
 725 uschar *host_reject_connection = NULL;
 726 tree_node *hostlist_anchor     = NULL;
 727 int     hostlist_count         = 0;
 728 uschar *hosts_treat_as_local   = NULL;
 729 uschar *hosts_connection_nolog = NULL;
 730
 731 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 732 BOOL    ignore_fromline_local  = FALSE;
 733 uschar *ignore_fromline_hosts  = NULL;
 734 BOOL    inetd_wait_mode        = FALSE;
 735 int     inetd_wait_timeout     = -1;
 736 uschar *interface_address      = NULL;
 737 int     interface_port         = -1;
 738 BOOL    is_inetd               = FALSE;
 739 uschar *iterate_item           = NULL;
 740
 741 int     journal_fd             = -1;
 742
 743 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 744
 745 uschar *eldap_dn               = NULL;
 746 int     load_average           = -2;
 747 BOOL    local_error_message    = FALSE;
 748 BOOL    local_from_check       = TRUE;
 749 uschar *local_from_prefix      = NULL;
 750 uschar *local_from_suffix      = NULL;
 751
 752 #if HAVE_IPV6
 753 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 754 #else
 755 uschar *local_interfaces       = US"0.0.0.0";
 756 #endif
 757
 758 uschar *local_scan_data        = NULL;
 759 int     local_scan_timeout     = 5*60;
 760 BOOL    local_sender_retain    = FALSE;
 761 gid_t   local_user_gid         = (gid_t)(-1);
 762 uid_t   local_user_uid         = (uid_t)(-1);
 763
 764 tree_node *localpartlist_anchor= NULL;
 765 int     localpartlist_count    = 0;
 766 uschar *log_buffer             = NULL;
 767 unsigned int log_extra_selector = LX_default;
 768 uschar *log_file_path          = US LOG_FILE_PATH
 769                            "\0<--------------Space to patch log_file_path->";
 770
 771 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 772 are the ones that get put into log_write_selector. They can be used in calls to
 773 log_write() to test for the bit. The options with LX_xxx identifiers have
 774 values greater than 0x80000000 and are put into log_extra_selector (without the
 775 top bit). They are never used in calls to log_write(), but are tested
 776 independently. This separation became necessary when the number of log
 777 selectors was getting close to filling a 32-bit word. */
 778
 779 /* Note that this list must be in alphabetical order. */
 780
 781 bit_table log_options[]        = {
 782   { US"8bitmime",                     LX_8bitmime },
 783   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 784   { US"address_rewrite",              L_address_rewrite },
 785   { US"all",                          L_all },
 786   { US"all_parents",                  L_all_parents },
 787   { US"arguments",                    LX_arguments },
 788   { US"connection_reject",            L_connection_reject },
 789   { US"delay_delivery",               L_delay_delivery },
 790   { US"deliver_time",                 LX_deliver_time },
 791   { US"delivery_size",                LX_delivery_size },
 792   { US"dnslist_defer",                L_dnslist_defer },
 793   { US"etrn",                         L_etrn },
 794   { US"host_lookup_failed",           L_host_lookup_failed },
 795   { US"ident_timeout",                LX_ident_timeout },
 796   { US"incoming_interface",           LX_incoming_interface },
 797   { US"incoming_port",                LX_incoming_port },
 798   { US"lost_incoming_connection",     L_lost_incoming_connection },
 799   { US"outgoing_port",                LX_outgoing_port },
 800   { US"pid",                          LX_pid },
 801 #ifdef EXPERIMENTAL_PROXY
 802   { US"proxy",                        LX_proxy },
 803 #endif
 804   { US"queue_run",                    L_queue_run },
 805   { US"queue_time",                   LX_queue_time },
 806   { US"queue_time_overall",           LX_queue_time_overall },
 807   { US"received_recipients",          LX_received_recipients },
 808   { US"received_sender",              LX_received_sender },
 809   { US"rejected_header",              LX_rejected_header },
 810   { US"rejected_headers",             LX_rejected_header },
 811   { US"retry_defer",                  L_retry_defer },
 812   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 813   { US"sender_on_delivery",           LX_sender_on_delivery },
 814   { US"sender_verify_fail",           LX_sender_verify_fail },
 815   { US"size_reject",                  L_size_reject },
 816   { US"skip_delivery",                L_skip_delivery },
 817   { US"smtp_confirmation",            LX_smtp_confirmation },
 818   { US"smtp_connection",              L_smtp_connection },
 819   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 820   { US"smtp_mailauth",                LX_smtp_mailauth },
 821   { US"smtp_no_mail",                 LX_smtp_no_mail },
 822   { US"smtp_protocol_error",          L_smtp_protocol_error },
 823   { US"smtp_syntax_error",            L_smtp_syntax_error },
 824   { US"subject",                      LX_subject },
 825   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 826   { US"tls_cipher",                   LX_tls_cipher },
 827   { US"tls_peerdn",                   LX_tls_peerdn },
 828   { US"tls_sni",                      LX_tls_sni },
 829   { US"unknown_in_list",              LX_unknown_in_list }
 830 };
 831
 832 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 833 int     log_reject_target      = 0;
 834 uschar *log_selector_string    = NULL;
 835 FILE   *log_stderr             = NULL;
 836 BOOL    log_testing_mode       = FALSE;
 837 BOOL    log_timezone           = FALSE;
 838 unsigned int log_write_selector= L_default;
 839 uschar *login_sender_address   = NULL;
 840 int     lookup_open_max        = 25;
 841 uschar *lookup_value           = NULL;
 842
 843 macro_item  *macros            = NULL;
 844 uschar *mailstore_basename     = NULL;
 845 #ifdef WITH_CONTENT_SCAN
 846 uschar *malware_name           = NULL;  /* Virus Name */
 847 #endif
 848 int     max_received_linelength= 0;
 849 int     max_username_length    = 0;
 850 int     message_age            = 0;
 851 uschar *message_body           = NULL;
 852 uschar *message_body_end       = NULL;
 853 BOOL    message_body_newlines  = FALSE;
 854 int     message_body_size      = 0;
 855 int     message_body_visible   = 500;
 856 int     message_ended          = END_NOTSTARTED;
 857 uschar *message_headers        = NULL;
 858 uschar *message_id;
 859 uschar *message_id_domain      = NULL;
 860 uschar *message_id_text        = NULL;
 861 struct timeval message_id_tv   = { 0, 0 };
 862 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 863 uschar *message_id_external;
 864 int     message_linecount      = 0;
 865 BOOL    message_logs           = TRUE;
 866 int     message_size           = 0;
 867 uschar *message_size_limit     = US"50M";
 868 uschar  message_subdir[2]      = { 0, 0 };
 869 uschar *message_reference      = NULL;
 870
 871 /* MIME ACL expandables */
 872 #ifdef WITH_CONTENT_SCAN
 873 int     mime_anomaly_level     = 0;
 874 const uschar *mime_anomaly_text      = NULL;
 875 uschar *mime_boundary          = NULL;
 876 uschar *mime_charset           = NULL;
 877 uschar *mime_content_description = NULL;
 878 uschar *mime_content_disposition = NULL;
 879 uschar *mime_content_id        = NULL;
 880 unsigned int mime_content_size = 0;
 881 uschar *mime_content_transfer_encoding = NULL;
 882 uschar *mime_content_type      = NULL;
 883 uschar *mime_decoded_filename  = NULL;
 884 uschar *mime_filename          = NULL;
 885 int     mime_is_multipart      = 0;
 886 int     mime_is_coverletter    = 0;
 887 int     mime_is_rfc822         = 0;
 888 int     mime_part_count        = -1;
 889 #endif
 890
 891 BOOL    mua_wrapper            = FALSE;
 892
 893 uid_t  *never_users            = NULL;
 894 #ifdef WITH_CONTENT_SCAN
 895 BOOL    no_mbox_unspool        = FALSE;
 896 #endif
 897 BOOL    no_multiline_responses = FALSE;
 898
 899 uid_t   original_euid;
 900 gid_t   originator_gid;
 901 uschar *originator_login       = NULL;
 902 uschar *originator_name        = NULL;
 903 uid_t   originator_uid;
 904 uschar *override_local_interfaces = NULL;
 905 uschar *override_pid_file_path = NULL;
 906
 907 BOOL    parse_allow_group      = FALSE;
 908 BOOL    parse_found_group      = FALSE;
 909 uschar *percent_hack_domains   = NULL;
 910 uschar *pid_file_path          = US PID_FILE_PATH
 911                            "\0<--------------Space to patch pid_file_path->";
 912 BOOL    pipelining_enable      = TRUE;
 913 uschar *pipelining_advertise_hosts = US"*";
 914 BOOL    preserve_message_logs  = FALSE;
 915 uschar *primary_hostname       = NULL;
 916 BOOL    print_topbitchars      = FALSE;
 917 uschar  process_info[PROCESS_INFO_SIZE];
 918 int     process_info_len       = 0;
 919 uschar *process_log_path       = NULL;
 920 BOOL    prod_requires_admin    = TRUE;
 921
 922 #ifdef EXPERIMENTAL_PROXY
 923 uschar *proxy_host_address     = US"";
 924 int     proxy_host_port        = 0;
 925 uschar *proxy_required_hosts   = US"";
 926 BOOL    proxy_session          = FALSE;
 927 BOOL    proxy_session_failed   = FALSE;
 928 uschar *proxy_target_address   = US"";
 929 int     proxy_target_port      = 0;
 930 #endif
 931
 932 uschar *prvscheck_address      = NULL;
 933 uschar *prvscheck_keynum       = NULL;
 934 uschar *prvscheck_result       = NULL;
 935
 936
 937 uschar *qualify_domain_recipient = NULL;
 938 uschar *qualify_domain_sender  = NULL;
 939 BOOL    queue_2stage           = FALSE;
 940 uschar *queue_domains          = NULL;
 941 int     queue_interval         = -1;
 942 BOOL    queue_list_requires_admin = TRUE;
 943 BOOL    queue_only             = FALSE;
 944 uschar *queue_only_file        = NULL;
 945 int     queue_only_load        = -1;
 946 BOOL    queue_only_load_latch  = TRUE;
 947 BOOL    queue_only_override    = TRUE;
 948 BOOL    queue_only_policy      = FALSE;
 949 BOOL    queue_run_first_delivery = FALSE;
 950 BOOL    queue_run_force        = FALSE;
 951 BOOL    queue_run_in_order     = FALSE;
 952 BOOL    queue_run_local        = FALSE;
 953 int     queue_run_max          = 5;
 954 pid_t   queue_run_pid          = (pid_t)0;
 955 int     queue_run_pipe         = -1;
 956 BOOL    queue_running          = FALSE;
 957 BOOL    queue_smtp             = FALSE;
 958 uschar *queue_smtp_domains     = NULL;
 959
 960 unsigned int random_seed       = 0;
 961 tree_node *ratelimiters_cmd    = NULL;
 962 tree_node *ratelimiters_conn   = NULL;
 963 tree_node *ratelimiters_mail   = NULL;
 964 uschar *raw_active_hostname    = NULL;
 965 uschar *raw_sender             = NULL;
 966 uschar **raw_recipients        = NULL;
 967 int     raw_recipients_count   = 0;
 968
 969 int     rcpt_count             = 0;
 970 int     rcpt_fail_count        = 0;
 971 int     rcpt_defer_count       = 0;
 972 gid_t   real_gid;
 973 uid_t   real_uid;
 974 BOOL    really_exim            = TRUE;
 975 BOOL    receive_call_bombout   = FALSE;
 976 int     receive_linecount      = 0;
 977 int     receive_messagecount   = 0;
 978 int     receive_timeout        = 0;
 979 int     received_count         = 0;
 980 uschar *received_for           = NULL;
 981
 982 /*  This is the default text for Received headers generated by Exim. The
 983 date  will be automatically added on the end. */
 984
 985 uschar *received_header_text   = US
 986      "Received: "
 987      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 988      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 989      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 990      "by $primary_hostname "
 991      "${if def:received_protocol {with $received_protocol}} "
 992      #ifdef SUPPORT_TLS
 993      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 994      #endif
 995      "(Exim $version_number)\n\t"
 996      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 997      "id $message_exim_id"
 998      "${if def:received_for {\n\tfor $received_for}}"
 999      "\0<---------------Space to patch received_header_text->";
1000
1001 int     received_headers_max   = 30;
1002 uschar *received_protocol      = NULL;
1003 int     received_time          = 0;
1004 uschar *recipient_data         = NULL;
1005 uschar *recipient_unqualified_hosts = NULL;
1006 uschar *recipient_verify_failure = NULL;
1007 int     recipients_count       = 0;
1008 BOOL    recipients_discarded   = FALSE;
1009 recipient_item  *recipients_list = NULL;
1010 int     recipients_list_max    = 0;
1011 int     recipients_max         = 0;
1012 BOOL    recipients_max_reject  = FALSE;
1013 const pcre *regex_AUTH         = NULL;
1014 const pcre *regex_check_dns_names = NULL;
1015 const pcre *regex_From         = NULL;
1016 const pcre *regex_IGNOREQUOTA  = NULL;
1017 const pcre *regex_PIPELINING   = NULL;
1018 const pcre *regex_SIZE         = NULL;
1019 const pcre *regex_smtp_code    = NULL;
1020 const pcre *regex_ismsgid      = NULL;
1021 #ifdef WHITELIST_D_MACROS
1022 const pcre *regex_whitelisted_macro = NULL;
1023 #endif
1024 #ifdef WITH_CONTENT_SCAN
1025 uschar *regex_match_string     = NULL;
1026 #endif
1027 int     remote_delivery_count  = 0;
1028 int     remote_max_parallel    = 2;
1029 uschar *remote_sort_domains    = NULL;
1030 int     retry_data_expire      = 7*24*60*60;
1031 int     retry_interval_max     = 24*60*60;
1032 int     retry_maximum_timeout  = 0;        /* set from retry config */
1033 retry_config  *retries         = NULL;
1034 uschar *return_path            = NULL;
1035 BOOL    return_path_remove     = TRUE;
1036 int     rewrite_existflags     = 0;
1037 uschar *rfc1413_hosts          = US"*";
1038 int     rfc1413_query_timeout  = 5;
1039 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1040 uid_t   root_gid               = ROOT_GID;
1041 uid_t   root_uid               = ROOT_UID;
1042
1043 router_instance  *routers  = NULL;
1044 router_instance  router_defaults = {
1045     NULL,                      /* chain pointer */
1046     NULL,                      /* name */
1047     NULL,                      /* info */
1048     NULL,                      /* private options block pointer */
1049     NULL,                      /* driver name */
1050
1051     NULL,                      /* address_data */
1052 #ifdef EXPERIMENTAL_BRIGHTMAIL
1053     NULL,                      /* bmi_rule */
1054 #endif
1055     NULL,                      /* cannot_route_message */
1056     NULL,                      /* condition */
1057     NULL,                      /* current_directory */
1058     NULL,                      /* debug_string */
1059     NULL,                      /* domains */
1060     NULL,                      /* errors_to */
1061     NULL,                      /* expand_gid */
1062     NULL,                      /* expand_uid */
1063     NULL,                      /* expand_more */
1064     NULL,                      /* expand_unseen */
1065     NULL,                      /* extra_headers */
1066     NULL,                      /* fallback_hosts */
1067     NULL,                      /* home_directory */
1068     NULL,                      /* ignore_target_hosts */
1069     NULL,                      /* local_parts */
1070     NULL,                      /* pass_router_name */
1071     NULL,                      /* prefix */
1072     NULL,                      /* redirect_router_name */
1073     NULL,                      /* remove_headers */
1074     NULL,                      /* require_files */
1075     NULL,                      /* router_home_directory */
1076     US"freeze",                /* self */
1077     NULL,                      /* senders */
1078     NULL,                      /* suffix */
1079     NULL,                      /* translate_ip_address */
1080     NULL,                      /* transport_name */
1081
1082     TRUE,                      /* address_test */
1083 #ifdef EXPERIMENTAL_BRIGHTMAIL
1084     FALSE,                     /* bmi_deliver_alternate */
1085     FALSE,                     /* bmi_deliver_default */
1086     FALSE,                     /* bmi_dont_deliver */
1087 #endif
1088     TRUE,                      /* expn */
1089     FALSE,                     /* caseful_local_part */
1090     FALSE,                     /* check_local_user */
1091     FALSE,                     /* disable_logging */
1092     FALSE,                     /* fail_verify_recipient */
1093     FALSE,                     /* fail_verify_sender */
1094     FALSE,                     /* gid_set */
1095     FALSE,                     /* initgroups */
1096     TRUE_UNSET,                /* log_as_local */
1097     TRUE,                      /* more */
1098     FALSE,                     /* pass_on_timeout */
1099     FALSE,                     /* prefix_optional */
1100     TRUE,                      /* repeat_use */
1101     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1102     FALSE,                     /* same_domain_copy_routing */
1103     FALSE,                     /* self_rewrite */
1104     FALSE,                     /* suffix_optional */
1105     FALSE,                     /* verify_only */
1106     TRUE,                      /* verify_recipient */
1107     TRUE,                      /* verify_sender */
1108     FALSE,                     /* uid_set */
1109     FALSE,                     /* unseen */
1110
1111     self_freeze,               /* self_code */
1112     (uid_t)(-1),               /* uid */
1113     (gid_t)(-1),               /* gid */
1114
1115     NULL,                      /* fallback_hostlist */
1116     NULL,                      /* transport instance */
1117     NULL,                      /* pass_router */
1118     NULL                       /* redirect_router */
1119 };
1120
1121 uschar *router_name            = NULL;
1122
1123 ip_address_item *running_interfaces = NULL;
1124 BOOL    running_in_test_harness = FALSE;
1125
1126 /* This is a weird one. The following string gets patched in the binary by the
1127 script that sets up a copy of Exim for running in the test harness. It seems
1128 that compilers are now clever, and share constant strings if they can.
1129 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1130 make use of the end of this string in order to save space. So the patching then
1131 wrecks this. We defeat this optimization by adding some additional characters
1132 onto the end of the string. */
1133
1134 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1135
1136 int     runrc                  = 0;
1137
1138 uschar *search_error_message   = NULL;
1139 BOOL    search_find_defer      = FALSE;
1140 uschar *self_hostname          = NULL;
1141 uschar *sender_address         = NULL;
1142 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1143 uschar *sender_address_data    = NULL;
1144 BOOL    sender_address_forced  = FALSE;
1145 uschar *sender_address_unrewritten = NULL;
1146 uschar *sender_data            = NULL;
1147 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1148 uschar *sender_fullhost        = NULL;
1149 uschar *sender_helo_name       = NULL;
1150 uschar **sender_host_aliases   = &no_aliases;
1151 uschar *sender_host_address    = NULL;
1152 uschar *sender_host_authenticated = NULL;
1153 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1154 BOOL    sender_host_dnssec     = FALSE;
1155 uschar *sender_host_name       = NULL;
1156 int     sender_host_port       = 0;
1157 BOOL    sender_host_notsocket  = FALSE;
1158 BOOL    sender_host_unknown    = FALSE;
1159 uschar *sender_ident           = NULL;
1160 BOOL    sender_local           = FALSE;
1161 BOOL    sender_name_forced     = FALSE;
1162 uschar *sender_rate            = NULL;
1163 uschar *sender_rate_limit      = NULL;
1164 uschar *sender_rate_period     = NULL;
1165 uschar *sender_rcvhost         = NULL;
1166 BOOL    sender_set_untrusted   = FALSE;
1167 uschar *sender_unqualified_hosts = NULL;
1168 uschar *sender_verify_failure = NULL;
1169 address_item *sender_verified_list  = NULL;
1170 address_item *sender_verified_failed = NULL;
1171 int     sender_verified_rc     = -1;
1172 BOOL    sender_verified_responded = FALSE;
1173 uschar *sending_ip_address     = NULL;
1174 int     sending_port           = -1;
1175 SIGNAL_BOOL sigalrm_seen       = FALSE;
1176 uschar **sighup_argv           = NULL;
1177 int     smtp_accept_count      = 0;
1178 BOOL    smtp_accept_keepalive  = TRUE;
1179 int     smtp_accept_max        = 20;
1180 int     smtp_accept_max_nonmail= 10;
1181 uschar *smtp_accept_max_nonmail_hosts = US"*";
1182 int     smtp_accept_max_per_connection = 1000;
1183 uschar *smtp_accept_max_per_host = NULL;
1184 int     smtp_accept_queue      = 0;
1185 int     smtp_accept_queue_per_connection = 10;
1186 int     smtp_accept_reserve    = 0;
1187 uschar *smtp_active_hostname   = NULL;
1188 BOOL    smtp_authenticated     = FALSE;
1189 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1190                              "Exim $version_number $tod_full"
1191                              "\0<---------------Space to patch smtp_banner->";
1192 BOOL    smtp_batched_input     = FALSE;
1193 BOOL    smtp_check_spool_space = TRUE;
1194 int     smtp_ch_index          = 0;
1195 uschar *smtp_cmd_argument      = NULL;
1196 uschar *smtp_cmd_buffer        = NULL;
1197 time_t  smtp_connection_start  = 0;
1198 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1199 int     smtp_connect_backlog   = 20;
1200 double  smtp_delay_mail        = 0.0;
1201 double  smtp_delay_rcpt        = 0.0;
1202 BOOL    smtp_enforce_sync      = TRUE;
1203 FILE   *smtp_in                = NULL;
1204 BOOL    smtp_input             = FALSE;
1205 int     smtp_load_reserve      = -1;
1206 int     smtp_mailcmd_count     = 0;
1207 FILE   *smtp_out               = NULL;
1208 uschar *smtp_etrn_command      = NULL;
1209 BOOL    smtp_etrn_serialize    = TRUE;
1210 int     smtp_max_synprot_errors= 3;
1211 int     smtp_max_unknown_commands = 3;
1212 uschar *smtp_notquit_reason    = NULL;
1213 uschar *smtp_ratelimit_hosts   = NULL;
1214 uschar *smtp_ratelimit_mail    = NULL;
1215 uschar *smtp_ratelimit_rcpt    = NULL;
1216 uschar *smtp_read_error        = US"";
1217 int     smtp_receive_timeout   = 5*60;
1218 uschar *smtp_reserve_hosts     = NULL;
1219 BOOL    smtp_return_error_details = FALSE;
1220 int     smtp_rlm_base          = 0;
1221 double  smtp_rlm_factor        = 0.0;
1222 int     smtp_rlm_limit         = 0;
1223 int     smtp_rlm_threshold     = INT_MAX;
1224 int     smtp_rlr_base          = 0;
1225 double  smtp_rlr_factor        = 0.0;
1226 int     smtp_rlr_limit         = 0;
1227 int     smtp_rlr_threshold     = INT_MAX;
1228 BOOL    smtp_use_pipelining    = FALSE;
1229 BOOL    smtp_use_size          = FALSE;
1230
1231 #ifdef WITH_CONTENT_SCAN
1232 uschar *spamd_address          = US"127.0.0.1 783";
1233 uschar *spam_bar               = NULL;
1234 uschar *spam_report            = NULL;
1235 uschar *spam_score             = NULL;
1236 uschar *spam_score_int         = NULL;
1237 #endif
1238 #ifdef EXPERIMENTAL_SPF
1239 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1240 uschar *spf_header_comment     = NULL;
1241 uschar *spf_received           = NULL;
1242 uschar *spf_result             = NULL;
1243 uschar *spf_smtp_comment       = NULL;
1244 #endif
1245
1246 BOOL    split_spool_directory  = FALSE;
1247 uschar *spool_directory        = US SPOOL_DIRECTORY
1248                            "\0<--------------Space to patch spool_directory->";
1249 #ifdef EXPERIMENTAL_SRS
1250 uschar *srs_config             = NULL;
1251 uschar *srs_db_address         = NULL;
1252 uschar *srs_db_key             = NULL;
1253 int     srs_hashlength         = 6;
1254 int     srs_hashmin            = -1;
1255 int     srs_maxage             = 31;
1256 uschar *srs_orig_recipient     = NULL;
1257 uschar *srs_orig_sender        = NULL;
1258 uschar *srs_recipient          = NULL;
1259 uschar *srs_secrets            = NULL;
1260 uschar *srs_status             = NULL;
1261 BOOL    srs_usehash            = TRUE;
1262 BOOL    srs_usetimestamp       = TRUE;
1263 #endif
1264 BOOL    strict_acl_vars        = FALSE;
1265 int     string_datestamp_offset= -1;
1266 int     string_datestamp_length= 0;
1267 int     string_datestamp_type  = -1;
1268 BOOL    strip_excess_angle_brackets = FALSE;
1269 BOOL    strip_trailing_dot     = FALSE;
1270 uschar *submission_domain      = NULL;
1271 BOOL    submission_mode        = FALSE;
1272 uschar *submission_name        = NULL;
1273 BOOL    suppress_local_fixups  = FALSE;
1274 BOOL    suppress_local_fixups_default = FALSE;
1275 BOOL    synchronous_delivery   = FALSE;
1276 BOOL    syslog_duplication     = TRUE;
1277 int     syslog_facility        = LOG_MAIL;
1278 uschar *syslog_processname     = US"exim";
1279 BOOL    syslog_timestamp       = TRUE;
1280 uschar *system_filter          = NULL;
1281
1282 uschar *system_filter_directory_transport = NULL;
1283 uschar *system_filter_file_transport = NULL;
1284 uschar *system_filter_pipe_transport = NULL;
1285 uschar *system_filter_reply_transport = NULL;
1286
1287 gid_t   system_filter_gid      = 0;
1288 BOOL    system_filter_gid_set  = FALSE;
1289 uid_t   system_filter_uid      = (uid_t)-1;
1290 BOOL    system_filter_uid_set  = FALSE;
1291 BOOL    system_filtering       = FALSE;
1292
1293 BOOL    tcp_nodelay            = TRUE;
1294 #ifdef USE_TCP_WRAPPERS
1295 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1296 #endif
1297 int     test_harness_load_avg  = 0;
1298 int     thismessage_size_limit = 0;
1299 int     timeout_frozen_after   = 0;
1300 BOOL    timestamps_utc         = FALSE;
1301
1302 #ifdef EXPERIMENTAL_TPDA
1303 int     tpda_defer_errno        = 0;
1304 uschar *tpda_defer_errstr       = NULL;
1305 uschar *tpda_delivery_ip        = NULL;
1306 int     tpda_delivery_port      = 0;
1307 uschar *tpda_delivery_fqdn      = NULL;
1308 uschar *tpda_delivery_local_part= NULL;
1309 uschar *tpda_delivery_domain    = NULL;
1310 uschar *tpda_delivery_confirmation = NULL;
1311 #endif
1312
1313 transport_instance  *transports = NULL;
1314
1315 transport_instance  transport_defaults = {
1316     NULL,                     /* chain pointer */
1317     NULL,                     /* name */
1318     NULL,                     /* info */
1319     NULL,                     /* private options block pointer */
1320     NULL,                     /* driver name */
1321     NULL,                     /* setup entry point */
1322     1,                        /* batch_max */
1323     NULL,                     /* batch_id */
1324     NULL,                     /* home_dir */
1325     NULL,                     /* current_dir */
1326     TRUE,                     /* multi-domain */
1327     FALSE,                    /* overrides_hosts */
1328     100,                      /* max_addresses */
1329     500,                      /* connection_max_messages */
1330     FALSE,                    /* deliver_as_creator */
1331     FALSE,                    /* disable_logging */
1332     FALSE,                    /* initgroups */
1333     FALSE,                    /* uid_set */
1334     FALSE,                    /* gid_set */
1335     (uid_t)(-1),              /* uid */
1336     (gid_t)(-1),              /* gid */
1337     NULL,                     /* expand_uid */
1338     NULL,                     /* expand_gid */
1339     NULL,                     /* warn_message */
1340     NULL,                     /* shadow */
1341     NULL,                     /* shadow_condition */
1342     NULL,                     /* filter_command */
1343     NULL,                     /* add_headers */
1344     NULL,                     /* remove_headers */
1345     NULL,                     /* return_path */
1346     NULL,                     /* debug_string */
1347     NULL,                     /* message_size_limit */
1348     NULL,                     /* headers_rewrite */
1349     NULL,                     /* rewrite_rules */
1350     0,                        /* rewrite_existflags */
1351     300,                      /* filter_timeout */
1352     FALSE,                    /* body_only */
1353     FALSE,                    /* delivery_date_add */
1354     FALSE,                    /* envelope_to_add */
1355     FALSE,                    /* headers_only */
1356     FALSE,                    /* rcpt_include_affixes */
1357     FALSE,                    /* return_path_add */
1358     FALSE,                    /* return_output */
1359     FALSE,                    /* return_fail_output */
1360     FALSE,                    /* log_output */
1361     FALSE,                    /* log_fail_output */
1362     FALSE,                    /* log_defer_output */
1363     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1364                                  1 nor 0 so can detect unset */
1365 };
1366
1367 int     transport_count;
1368 uschar *transport_name          = NULL;
1369 int     transport_newlines;
1370 uschar **transport_filter_argv  = NULL;
1371 int     transport_filter_timeout;
1372 BOOL    transport_filter_timed_out = FALSE;
1373 int     transport_write_timeout= 0;
1374
1375 tree_node  *tree_dns_fails     = NULL;
1376 tree_node  *tree_duplicates    = NULL;
1377 tree_node  *tree_nonrecipients = NULL;
1378 tree_node  *tree_unusable      = NULL;
1379
1380 BOOL    trusted_caller         = FALSE;
1381 BOOL    trusted_config         = TRUE;
1382 gid_t  *trusted_groups         = NULL;
1383 uid_t  *trusted_users          = NULL;
1384 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1385
1386 uschar *unknown_login          = NULL;
1387 uschar *unknown_username       = NULL;
1388 uschar *untrusted_set_sender   = NULL;
1389
1390 /*  A regex for matching a "From_" line in an incoming message, in the form
1391
1392     From ph10 Fri Jan  5 12:35 GMT 1996
1393
1394 which  the "mail" commands send to the MTA (undocumented, of course), or in
1395 the  form
1396
1397     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1398
1399 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1400 Because  of variations in time formats, just match up to the minutes. That
1401 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1402 so  just require one digit for hours and minutes. The weekday is also absent
1403 in  some forms. */
1404
1405 uschar *uucp_from_pattern      = US
1406    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1407    "(?:"                                          /* Non-extracting bracket */
1408    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1409    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1410    ")"                                            /* End alternation */
1411    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1412
1413 uschar *uucp_from_sender       = US"$1";
1414
1415 uschar *warn_message_file      = NULL;
1416 uschar *warnmsg_delay          = NULL;
1417 uschar *warnmsg_recipients     = NULL;
1418 BOOL    write_rejectlog        = TRUE;
1419
1420 uschar *version_copyright      =
1421  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1422    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1423 uschar *version_date           = US"?";
1424 uschar *version_cnumber        = US"????";
1425 uschar *version_string         = US"?";
1426
1427 int     warning_count          = 0;
1428
1429 /*  End of globals.c */