src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.58 2006/09/19 11:28:45 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2006 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_debug_print", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_debug_string)) },
  43   { "server_mail_auth_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  45   { "server_set_id", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, set_id)) }
  47 };
  48
  49 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  50
  51 /* An empty host aliases list. */
  52
  53 uschar *no_aliases             = NULL;
  54
  55
  56 /* For comments on these variables, see globals.h. I'm too idle to
  57 duplicate them here... */
  58
  59 #ifdef EXIM_PERL
  60 uschar *opt_perl_startup       = NULL;
  61 BOOL    opt_perl_at_start      = FALSE;
  62 BOOL    opt_perl_started       = FALSE;
  63 #endif
  64
  65 #ifdef EXPAND_DLFUNC
  66 tree_node *dlobj_anchor        = NULL;
  67 #endif
  68
  69 #ifdef LOOKUP_IBASE
  70 uschar *ibase_servers          = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_LDAP
  74 uschar *eldap_default_servers  = NULL;
  75 int     eldap_version          = -1;
  76 #endif
  77
  78 #ifdef LOOKUP_MYSQL
  79 uschar *mysql_servers          = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_ORACLE
  83 uschar *oracle_servers         = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_PGSQL
  87 uschar *pgsql_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 BOOL    tls_active             = -1;
 103 BOOL    tls_certificate_verified = FALSE;
 104 uschar *tls_cipher             = NULL;
 105 BOOL    tls_on_connect         = FALSE;
 106 uschar *tls_on_connect_ports   = NULL;
 107 uschar *tls_peerdn             = NULL;
 108
 109 #ifdef SUPPORT_TLS
 110 const pcre *regex_STARTTLS     = NULL;
 111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 112 uschar *tls_certificate        = NULL;
 113 uschar *tls_crl                = NULL;
 114 uschar *tls_dhparam            = NULL;
 115 BOOL    tls_offered            = FALSE;
 116 uschar *tls_privatekey         = NULL;
 117 BOOL    tls_remember_esmtp     = FALSE;
 118 uschar *tls_require_ciphers    = NULL;
 119 uschar *tls_try_verify_hosts   = NULL;
 120 uschar *tls_verify_certificates= NULL;
 121 uschar *tls_verify_hosts       = NULL;
 122 #endif
 123
 124
 125 /* Input-reading functions for messages, so we can use special ones for
 126 incoming TCP/IP. The defaults use stdin. We never need these for any
 127 stand-alone tests. */
 128
 129 #ifndef STAND_ALONE
 130 int (*receive_getc)(void)      = stdin_getc;
 131 int (*receive_ungetc)(int)     = stdin_ungetc;
 132 int (*receive_feof)(void)      = stdin_feof;
 133 int (*receive_ferror)(void)    = stdin_ferror;
 134 #endif
 135
 136
 137 /* List of per-address expansion variables for clearing and saving/restoring
 138 when verifying one address while routing/verifying another. We have to have
 139 the size explicit, because it is referenced from more than one module. */
 140
 141 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 142   &deliver_address_data,
 143   &deliver_domain,
 144   &deliver_domain_data,
 145   &deliver_domain_orig,
 146   &deliver_domain_parent,
 147   &deliver_localpart,
 148   &deliver_localpart_data,
 149   &deliver_localpart_orig,
 150   &deliver_localpart_parent,
 151   &deliver_localpart_prefix,
 152   &deliver_localpart_suffix,
 153   (uschar **)(&deliver_recipients),
 154   &deliver_host,
 155   &deliver_home,
 156   &address_file,
 157   &address_pipe,
 158   &self_hostname,
 159   NULL };
 160
 161 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 162
 163 /* General global variables */
 164
 165 header_line *acl_added_headers = NULL;
 166 tree_node *acl_anchor          = NULL;
 167 uschar *acl_not_smtp           = NULL;
 168 #ifdef WITH_CONTENT_SCAN
 169 uschar *acl_not_smtp_mime      = NULL;
 170 #endif
 171 uschar *acl_not_smtp_start     = NULL;
 172 uschar *acl_smtp_auth          = NULL;
 173 uschar *acl_smtp_connect       = NULL;
 174 uschar *acl_smtp_data          = NULL;
 175 uschar *acl_smtp_etrn          = NULL;
 176 uschar *acl_smtp_expn          = NULL;
 177 uschar *acl_smtp_helo          = NULL;
 178 uschar *acl_smtp_mail          = NULL;
 179 uschar *acl_smtp_mailauth      = NULL;
 180 #ifdef WITH_CONTENT_SCAN
 181 uschar *acl_smtp_mime          = NULL;
 182 #endif
 183 uschar *acl_smtp_predata       = NULL;
 184 uschar *acl_smtp_quit          = NULL;
 185 uschar *acl_smtp_rcpt          = NULL;
 186 uschar *acl_smtp_starttls      = NULL;
 187 uschar *acl_smtp_vrfy          = NULL;
 188 BOOL    acl_temp_details       = FALSE;
 189 tree_node *acl_var_c           = NULL;
 190 tree_node *acl_var_m           = NULL;
 191 uschar *acl_verify_message     = NULL;
 192 string_item *acl_warn_logged   = NULL;
 193
 194 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 195 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 196
 197 uschar *acl_wherenames[]       = { US"RCPT",
 198                                    US"MAIL",
 199                                    US"PREDATA",
 200                                    US"MIME",
 201                                    US"DATA",
 202                                    US"non-SMTP",
 203                                    US"AUTH",
 204                                    US"connection",
 205                                    US"ETRN",
 206                                    US"EXPN",
 207                                    US"EHLO or HELO",
 208                                    US"MAILAUTH",
 209                                    US"non-SMTP-start",
 210                                    US"QUIT",
 211                                    US"STARTTLS",
 212                                    US"VRFY"
 213                                  };
 214
 215 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 216                                    US"550",     /* MAIL */
 217                                    US"550",     /* PREDATA */
 218                                    US"550",     /* MIME */
 219                                    US"550",     /* DATA */
 220                                    US"0",       /* not SMTP; not relevant */
 221                                    US"503",     /* AUTH */
 222                                    US"550",     /* connect */
 223                                    US"458",     /* ETRN */
 224                                    US"550",     /* EXPN */
 225                                    US"550",     /* HELO/EHLO */
 226                                    US"0",       /* MAILAUTH; not relevant */
 227                                    US"0",       /* not SMTP; not relevant */
 228                                    US"0",       /* QUIT; not relevant */
 229                                    US"550",     /* STARTTLS */
 230                                    US"252"      /* VRFY */
 231                                  };
 232
 233 BOOL    active_local_from_check = FALSE;
 234 BOOL    active_local_sender_retain = FALSE;
 235 BOOL    accept_8bitmime        = FALSE;
 236 address_item  *addr_duplicate  = NULL;
 237
 238 address_item address_defaults = {
 239   NULL,                 /* next */
 240   NULL,                 /* parent */
 241   NULL,                 /* first */
 242   NULL,                 /* dupof */
 243   NULL,                 /* start_router */
 244   NULL,                 /* router */
 245   NULL,                 /* transport */
 246   NULL,                 /* host_list */
 247   NULL,                 /* host_used */
 248   NULL,                 /* fallback_hosts */
 249   NULL,                 /* reply */
 250   NULL,                 /* retries */
 251   NULL,                 /* address */
 252   NULL,                 /* unique */
 253   NULL,                 /* cc_local_part */
 254   NULL,                 /* lc_local_part */
 255   NULL,                 /* local_part */
 256   NULL,                 /* prefix */
 257   NULL,                 /* suffix */
 258   NULL,                 /* domain */
 259   NULL,                 /* address_retry_key */
 260   NULL,                 /* domain_retry_key */
 261   NULL,                 /* current_dir */
 262   NULL,                 /* home_dir */
 263   NULL,                 /* message */
 264   NULL,                 /* user_message */
 265   NULL,                 /* onetime_parent */
 266   NULL,                 /* pipe_expandn */
 267   NULL,                 /* return_filename */
 268   NULL,                 /* self_hostname */
 269   NULL,                 /* shadow_message */
 270   #ifdef SUPPORT_TLS
 271   NULL,                 /* cipher */
 272   NULL,                 /* peerdn */
 273   #endif
 274   (uid_t)(-1),          /* uid */
 275   (gid_t)(-1),          /* gid */
 276   0,                    /* flags */
 277   { 0 },                /* domain_cache - any larger array should be zeroed */
 278   { 0 },                /* localpart_cache - ditto */
 279   -1,                   /* mode */
 280   0,                    /* more_errno */
 281   ERRNO_UNKNOWNERROR,   /* basic_errno */
 282   0,                    /* child_count */
 283   -1,                   /* return_file */
 284   SPECIAL_NONE,         /* special_action */
 285   DEFER,                /* transport_return */
 286   {                     /* fields that are propagated to children */
 287     NULL,               /* address_data */
 288     NULL,               /* domain_data */
 289     NULL,               /* localpart_data */
 290     NULL,               /* errors_address */
 291     NULL,               /* extra_headers */
 292     NULL,               /* remove_headers */
 293 #ifdef EXPERIMENTAL_SRS
 294     NULL,               /* srs_sender */
 295 #endif
 296   }
 297 };
 298
 299 uschar *address_file           = NULL;
 300 uschar *address_pipe           = NULL;
 301 BOOL    address_test_mode      = FALSE;
 302 tree_node *addresslist_anchor  = NULL;
 303 int     addresslist_count      = 0;
 304 gid_t  *admin_groups           = NULL;
 305 BOOL    admin_user             = FALSE;
 306 BOOL    allow_auth_unadvertised= FALSE;
 307 BOOL    allow_domain_literals  = FALSE;
 308 BOOL    allow_mx_to_ip         = FALSE;
 309 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 310 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 311 BOOL    allow_utf8_domains     = FALSE;
 312 uschar *authenticated_id       = NULL;
 313 uschar *authenticated_sender   = NULL;
 314 BOOL    authentication_failed  = FALSE;
 315 auth_instance  *auths          = NULL;
 316 uschar *auth_advertise_hosts   = US"*";
 317 auth_instance auth_defaults    = {
 318     NULL,                      /* chain pointer */
 319     NULL,                      /* name */
 320     NULL,                      /* info */
 321     NULL,                      /* private options block pointer */
 322     NULL,                      /* driver_name */
 323     NULL,                      /* advertise_condition */
 324     NULL,                      /* public_name */
 325     NULL,                      /* set_id */
 326     NULL,                      /* server_mail_auth_condition */
 327     NULL,                      /* server_debug_string */
 328     FALSE,                     /* client */
 329     FALSE,                     /* server */
 330     FALSE                      /* advertised */
 331 };
 332
 333 uschar *auth_defer_msg         = US"reason not recorded";
 334 uschar *auth_defer_user_msg    = US"";
 335 uschar *auth_vars[AUTH_VARS];
 336 int     auto_thaw              = 0;
 337 #ifdef WITH_CONTENT_SCAN
 338 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 339 #endif
 340
 341 BOOL    background_daemon      = TRUE;
 342
 343 #if BASE_62 == 62
 344 uschar *base62_chars=
 345     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 346 #else
 347 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 348 #endif
 349
 350 uschar *bi_command             = NULL;
 351 uschar *big_buffer             = NULL;
 352 int     big_buffer_size        = BIG_BUFFER_SIZE;
 353 #ifdef EXPERIMENTAL_BRIGHTMAIL
 354 uschar *bmi_alt_location       = NULL;
 355 uschar *bmi_base64_tracker_verdict = NULL;
 356 uschar *bmi_base64_verdict     = NULL;
 357 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 358 int     bmi_deliver            = 1;
 359 int     bmi_run                = 0;
 360 uschar *bmi_verdicts           = NULL;
 361 #endif
 362 int     body_linecount         = 0;
 363 int     body_zerocount         = 0;
 364 uschar *bounce_message_file    = NULL;
 365 uschar *bounce_message_text    = NULL;
 366 uschar *bounce_recipient       = NULL;
 367 BOOL    bounce_return_body     = TRUE;
 368 BOOL    bounce_return_message  = TRUE;
 369 int     bounce_return_size_limit = 100*1024;
 370 uschar *bounce_sender_authentication = NULL;
 371 int     bsmtp_transaction_linecount = 0;
 372
 373 int     callout_cache_domain_positive_expire = 7*24*60*60;
 374 int     callout_cache_domain_negative_expire = 3*60*60;
 375 int     callout_cache_positive_expire = 24*60*60;
 376 int     callout_cache_negative_expire = 2*60*60;
 377 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 378 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 379 int     check_log_inodes       = 0;
 380 int     check_log_space        = 0;
 381 BOOL    check_rfc2047_length   = TRUE;
 382 int     check_spool_inodes     = 0;
 383 int     check_spool_space      = 0;
 384 int     clmacro_count          = 0;
 385 uschar *clmacros[MAX_CLMACROS];
 386 BOOL    config_changed         = FALSE;
 387 FILE   *config_file            = NULL;
 388 uschar *config_filename        = NULL;
 389 int     config_lineno          = 0;
 390 #ifdef CONFIGURE_GROUP
 391 gid_t   config_gid             = CONFIGURE_GROUP;
 392 #endif
 393 uschar *config_main_filelist   = US CONFIGURE_FILE
 394                          "\0<-----------Space to patch configure_filename->";
 395 uschar *config_main_filename   = NULL;
 396
 397 #ifdef CONFIGURE_OWNER
 398 uid_t   config_uid             = CONFIGURE_OWNER;
 399 #endif
 400
 401 int     connection_max_messages= -1;
 402 uschar *continue_hostname      = NULL;
 403 uschar *continue_host_address  = NULL;
 404 BOOL    continue_more          = FALSE;
 405 int     continue_sequence      = 1;
 406 uschar *continue_transport     = NULL;
 407
 408 uschar *csa_status             = NULL;
 409
 410 BOOL    daemon_listen          = FALSE;
 411 uschar *daemon_smtp_port       = US"smtp";
 412 int     daemon_startup_retries = 9;
 413 int     daemon_startup_sleep   = 30;
 414 BOOL    debug_daemon           = FALSE;
 415 int     debug_fd               = -1;
 416 FILE   *debug_file             = NULL;
 417 bit_table debug_options[]      = {
 418   { US"acl",            D_acl },
 419   { US"all",            D_all },
 420   { US"auth",           D_auth },
 421   { US"deliver",        D_deliver },
 422   { US"dns",            D_dns },
 423   { US"dnsbl",          D_dnsbl },
 424   { US"exec",           D_exec },
 425   { US"expand",         D_expand },
 426   { US"filter",         D_filter },
 427   { US"hints_lookup",   D_hints_lookup },
 428   { US"host_lookup",    D_host_lookup },
 429   { US"ident",          D_ident },
 430   { US"interface",      D_interface },
 431   { US"lists",          D_lists },
 432   { US"load",           D_load },
 433   { US"local_scan",     D_local_scan },
 434   { US"lookup",         D_lookup },
 435   { US"memory",         D_memory },
 436   { US"pid",            D_pid },
 437   { US"process_info",   D_process_info },
 438   { US"queue_run",      D_queue_run },
 439   { US"receive",        D_receive },
 440   { US"resolver",       D_resolver },
 441   { US"retry",          D_retry },
 442   { US"rewrite",        D_rewrite },
 443   { US"route",          D_route },
 444   { US"timestamp",      D_timestamp },
 445   { US"tls",            D_tls },
 446   { US"transport",      D_transport },
 447   { US"uid",            D_uid },
 448   { US"verify",         D_verify }
 449 };
 450 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 451 unsigned int debug_selector    = 0;
 452 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 453 uschar *delay_warning_condition=
 454   US"${if or {"
 455             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 456             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 457             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 458             "} {no}{yes}}";
 459 BOOL    delivery_date_remove   = TRUE;
 460 uschar *deliver_address_data   = NULL;
 461 int     deliver_datafile       = -1;
 462 uschar *deliver_domain         = NULL;
 463 uschar *deliver_domain_data    = NULL;
 464 uschar *deliver_domain_orig    = NULL;
 465 uschar *deliver_domain_parent  = NULL;
 466 BOOL    deliver_drop_privilege = FALSE;
 467 BOOL    deliver_firsttime      = FALSE;
 468 BOOL    deliver_force          = FALSE;
 469 BOOL    deliver_freeze         = FALSE;
 470 int     deliver_frozen_at      = 0;
 471 uschar *deliver_home           = NULL;
 472 uschar *deliver_host           = NULL;
 473 uschar *deliver_host_address   = NULL;
 474 uschar *deliver_in_buffer      = NULL;
 475 ino_t   deliver_inode          = 0;
 476 uschar *deliver_localpart      = NULL;
 477 uschar *deliver_localpart_data = NULL;
 478 uschar *deliver_localpart_orig = NULL;
 479 uschar *deliver_localpart_parent = NULL;
 480 uschar *deliver_localpart_prefix = NULL;
 481 uschar *deliver_localpart_suffix = NULL;
 482 BOOL    deliver_force_thaw     = FALSE;
 483 BOOL    deliver_manual_thaw    = FALSE;
 484 uschar *deliver_out_buffer     = NULL;
 485 int     deliver_queue_load_max = -1;
 486 address_item  *deliver_recipients = NULL;
 487 uschar *deliver_selectstring   = NULL;
 488 BOOL    deliver_selectstring_regex = FALSE;
 489 uschar *deliver_selectstring_sender = NULL;
 490 BOOL    deliver_selectstring_sender_regex = FALSE;
 491 #ifdef WITH_OLD_DEMIME
 492 int     demime_errorlevel      = 0;
 493 int     demime_ok              = 0;
 494 uschar *demime_reason          = NULL;
 495 #endif
 496 BOOL    disable_ipv6           = FALSE;
 497 BOOL    disable_logging        = FALSE;
 498
 499 #ifdef EXPERIMENTAL_DOMAINKEYS
 500 uschar *dk_signing_domain      = NULL;
 501 uschar *dk_signing_selector    = NULL;
 502 int     dk_do_verify           = 0;
 503 #endif
 504
 505 uschar *dns_again_means_nonexist = NULL;
 506 int     dns_csa_search_limit   = 5;
 507 BOOL    dns_csa_use_reverse    = TRUE;
 508 uschar *dns_ipv4_lookup        = NULL;
 509 int     dns_retrans            = 0;
 510 int     dns_retry              = 0;
 511 uschar *dnslist_domain         = NULL;
 512 uschar *dnslist_text           = NULL;
 513 uschar *dnslist_value          = NULL;
 514 tree_node *domainlist_anchor   = NULL;
 515 int     domainlist_count       = 0;
 516 BOOL    dont_deliver           = FALSE;
 517 BOOL    dot_ends               = TRUE;
 518 BOOL    drop_cr                = FALSE;         /* No longer used */
 519
 520 BOOL    enable_dollar_recipients = FALSE;
 521 BOOL    envelope_to_remove     = TRUE;
 522 int     errno_quota            = ERRNO_QUOTA;
 523 uschar *errors_copy            = NULL;
 524 int     error_handling         = ERRORS_SENDER;
 525 uschar *errors_reply_to        = NULL;
 526 int     errors_sender_rc       = EXIT_FAILURE;
 527
 528 gid_t   exim_gid               = EXIM_GID;
 529 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 530 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 531                         "\0<---------------Space to patch exim_path->";
 532 uid_t   exim_uid               = EXIM_UID;
 533 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 534 int     expand_forbid          = 0;
 535 int     expand_nlength[EXPAND_MAXN+1];
 536 int     expand_nmax            = -1;
 537 uschar *expand_nstring[EXPAND_MAXN+1];
 538 BOOL    expand_string_forcedfail = FALSE;
 539 uschar *expand_string_message;
 540 BOOL    extract_addresses_remove_arguments = TRUE;
 541 uschar *extra_local_interfaces = NULL;
 542
 543 int     fake_response          = OK;
 544 uschar *fake_response_text     = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legitimate message, it may still be delivered to the target recipient(s).";
 545 int     filter_n[FILTER_VARIABLE_COUNT];
 546 BOOL    filter_running         = FALSE;
 547 int     filter_sn[FILTER_VARIABLE_COUNT];
 548 int     filter_test            = FTEST_NONE;
 549 uschar *filter_test_sfile      = NULL;
 550 uschar *filter_test_ufile      = NULL;
 551 uschar *filter_thisaddress     = NULL;
 552 int     finduser_retries       = 0;
 553 #ifdef WITH_OLD_DEMIME
 554 uschar *found_extension        = NULL;
 555 #endif
 556 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 557 uschar *freeze_tell            = NULL;
 558 uschar *freeze_tell_config     = NULL;
 559 uschar *fudged_queue_times     = US"";
 560
 561 uschar *gecos_name             = NULL;
 562 uschar *gecos_pattern          = NULL;
 563 rewrite_rule  *global_rewrite_rules = NULL;
 564
 565 uschar *headers_charset        = US HEADERS_CHARSET;
 566 int     header_insert_maxlen   = 64 * 1024;
 567 header_line  *header_last      = NULL;
 568 header_line  *header_list      = NULL;
 569 int     header_maxsize         = HEADER_MAXSIZE;
 570 int     header_line_maxsize    = 0;
 571
 572 header_name header_names[] = {
 573   { US"bcc",            3, TRUE,  htype_bcc },
 574   { US"cc",             2, TRUE,  htype_cc },
 575   { US"date",           4, TRUE,  htype_date },
 576   { US"delivery-date", 13, FALSE, htype_delivery_date },
 577   { US"envelope-to",   11, FALSE, htype_envelope_to },
 578   { US"from",           4, TRUE,  htype_from },
 579   { US"message-id",    10, TRUE,  htype_id },
 580   { US"received",       8, FALSE, htype_received },
 581   { US"reply-to",       8, FALSE, htype_reply_to },
 582   { US"return-path",   11, FALSE, htype_return_path },
 583   { US"sender",         6, TRUE,  htype_sender },
 584   { US"subject",        7, FALSE, htype_subject },
 585   { US"to",             2, TRUE,  htype_to }
 586 };
 587
 588 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 589
 590 BOOL    header_rewritten       = FALSE;
 591 uschar *helo_accept_junk_hosts = NULL;
 592 uschar *helo_allow_chars       = US"";
 593 uschar *helo_lookup_domains    = US"@ : @[]";
 594 uschar *helo_try_verify_hosts  = NULL;
 595 BOOL    helo_verified          = FALSE;
 596 BOOL    helo_verify_failed     = FALSE;
 597 uschar *helo_verify_hosts      = NULL;
 598 uschar *hex_digits             = US"0123456789abcdef";
 599 uschar *hold_domains           = NULL;
 600 BOOL    host_checking          = FALSE;
 601 BOOL    host_checking_callout  = FALSE;
 602 uschar *host_data              = NULL;
 603 BOOL    host_find_failed_syntax= FALSE;
 604 uschar *host_lookup            = NULL;
 605 BOOL    host_lookup_deferred   = FALSE;
 606 BOOL    host_lookup_failed     = FALSE;
 607 uschar *host_lookup_order      = US"bydns:byaddr";
 608 uschar *host_lookup_msg        = US"";
 609 int     host_number            = 0;
 610 uschar *host_number_string     = NULL;
 611 uschar *host_reject_connection = NULL;
 612 tree_node *hostlist_anchor     = NULL;
 613 int     hostlist_count         = 0;
 614 uschar *hosts_treat_as_local   = NULL;
 615 uschar *hosts_connection_nolog = NULL;
 616
 617 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 618 BOOL    ignore_fromline_local  = FALSE;
 619 uschar *ignore_fromline_hosts  = NULL;
 620 uschar *interface_address      = NULL;
 621 int     interface_port         = -1;
 622 BOOL    is_inetd               = FALSE;
 623
 624 int     journal_fd             = -1;
 625
 626 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 627
 628 uschar *eldap_dn               = NULL;
 629 int     load_average           = -2;
 630 BOOL    local_error_message    = FALSE;
 631 BOOL    local_from_check       = TRUE;
 632 uschar *local_from_prefix      = NULL;
 633 uschar *local_from_suffix      = NULL;
 634
 635 #if HAVE_IPV6
 636 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 637 #else
 638 uschar *local_interfaces       = US"0.0.0.0";
 639 #endif
 640
 641 uschar *local_scan_data        = NULL;
 642 int     local_scan_timeout     = 5*60;
 643 BOOL    local_sender_retain    = FALSE;
 644 gid_t   local_user_gid         = (gid_t)(-1);
 645 uid_t   local_user_uid         = (uid_t)(-1);
 646
 647 tree_node *localpartlist_anchor= NULL;
 648 int     localpartlist_count    = 0;
 649 uschar *log_buffer             = NULL;
 650 unsigned int log_extra_selector = LX_default;
 651 uschar *log_file_path          = US LOG_FILE_PATH
 652                            "\0<--------------Space to patch log_file_path->";
 653
 654 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 655 are the ones that get put into log_write_selector. They can be used in calls to
 656 log_write() to test for the bit. The options with LX_xxx identifiers have
 657 values greater than 0x80000000 and are put int log_extra_selector (without the
 658 top bit). They are never used in calls to log_write(), but are tested
 659 independently. This separation became necessary when the number of log
 660 selectors was getting close to filling a 32-bit word. */
 661
 662 bit_table log_options[]        = {
 663   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 664   { US"address_rewrite",              L_address_rewrite },
 665   { US"all",                          L_all },
 666   { US"all_parents",                  L_all_parents },
 667   { US"arguments",                    LX_arguments },
 668   { US"connection_reject",            L_connection_reject },
 669   { US"delay_delivery",               L_delay_delivery },
 670   { US"deliver_time",                 LX_deliver_time },
 671   { US"delivery_size",                LX_delivery_size },
 672   { US"dnslist_defer",                L_dnslist_defer },
 673   { US"etrn",                         L_etrn },
 674   { US"host_lookup_failed",           L_host_lookup_failed },
 675   { US"ident_timeout",                LX_ident_timeout },
 676   { US"incoming_interface",           LX_incoming_interface },
 677   { US"incoming_port",                LX_incoming_port },
 678   { US"lost_incoming_connection",     L_lost_incoming_connection },
 679   { US"outgoing_port",                LX_outgoing_port },
 680   { US"queue_run",                    L_queue_run },
 681   { US"queue_time",                   LX_queue_time },
 682   { US"queue_time_overall",           LX_queue_time_overall },
 683   { US"received_recipients",          LX_received_recipients },
 684   { US"received_sender",              LX_received_sender },
 685   { US"rejected_header",              LX_rejected_header },
 686   { US"rejected_headers",             LX_rejected_header },
 687   { US"retry_defer",                  L_retry_defer },
 688   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 689   { US"sender_on_delivery",           LX_sender_on_delivery },
 690   { US"sender_verify_fail",           LX_sender_verify_fail },
 691   { US"size_reject",                  L_size_reject },
 692   { US"skip_delivery",                L_skip_delivery },
 693   { US"smtp_confirmation",            LX_smtp_confirmation },
 694   { US"smtp_connection",              L_smtp_connection },
 695   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 696   { US"smtp_protocol_error",          L_smtp_protocol_error },
 697   { US"smtp_syntax_error",            L_smtp_syntax_error },
 698   { US"subject",                      LX_subject },
 699   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 700   { US"tls_cipher",                   LX_tls_cipher },
 701   { US"tls_peerdn",                   LX_tls_peerdn },
 702   { US"unknown_in_list",              LX_unknown_in_list }
 703 };
 704
 705 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 706 unsigned int log_write_selector= L_default;
 707 uschar *log_selector_string    = NULL;
 708 FILE   *log_stderr             = NULL;
 709 BOOL    log_testing_mode       = FALSE;
 710 BOOL    log_timezone           = FALSE;
 711 uschar *login_sender_address   = NULL;
 712 int     lookup_open_max        = 25;
 713 uschar *lookup_value           = NULL;
 714
 715 macro_item  *macros            = NULL;
 716 uschar *mailstore_basename     = NULL;
 717 #ifdef WITH_CONTENT_SCAN
 718 uschar *malware_name           = NULL;  /* Virus Name */
 719 #endif
 720 int     max_username_length    = 0;
 721 int     message_age            = 0;
 722 uschar *message_body           = NULL;
 723 uschar *message_body_end       = NULL;
 724 int     message_body_size      = 0;
 725 int     message_body_visible   = 500;
 726 int     message_ended          = END_NOTSTARTED;
 727 uschar *message_headers        = NULL;
 728 uschar *message_id;
 729 uschar *message_id_domain      = NULL;
 730 uschar *message_id_text        = NULL;
 731 struct timeval message_id_tv   = { 0, 0 };
 732 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 733 uschar *message_id_external;
 734 int     message_linecount      = 0;
 735 BOOL    message_logs           = TRUE;
 736 int     message_size           = 0;
 737 uschar *message_size_limit     = US"50M";
 738 uschar  message_subdir[2]      = { 0, 0 };
 739 uschar *message_reference      = NULL;
 740
 741 /* MIME ACL expandables */
 742 #ifdef WITH_CONTENT_SCAN
 743 int     mime_anomaly_level     = 0;
 744 uschar *mime_anomaly_text      = NULL;
 745 uschar *mime_boundary          = NULL;
 746 uschar *mime_charset           = NULL;
 747 uschar *mime_content_description = NULL;
 748 uschar *mime_content_disposition = NULL;
 749 uschar *mime_content_id        = NULL;
 750 unsigned int mime_content_size = 0;
 751 uschar *mime_content_transfer_encoding = NULL;
 752 uschar *mime_content_type      = NULL;
 753 uschar *mime_decoded_filename  = NULL;
 754 uschar *mime_filename          = NULL;
 755 int     mime_is_multipart      = 0;
 756 int     mime_is_coverletter    = 0;
 757 int     mime_is_rfc822         = 0;
 758 int     mime_part_count        = -1;
 759 #endif
 760
 761 BOOL    mua_wrapper            = FALSE;
 762
 763 uid_t  *never_users            = NULL;
 764 #ifdef WITH_CONTENT_SCAN
 765 BOOL    no_mbox_unspool        = FALSE;
 766 #endif
 767 BOOL    no_multiline_responses = FALSE;
 768
 769 uid_t   original_euid;
 770 gid_t   originator_gid;
 771 uschar *originator_login       = NULL;
 772 uschar *originator_name        = NULL;
 773 uid_t   originator_uid;
 774 uschar *override_local_interfaces = NULL;
 775 uschar *override_pid_file_path = NULL;
 776
 777 BOOL    parse_allow_group      = FALSE;
 778 BOOL    parse_found_group      = FALSE;
 779 uschar *percent_hack_domains   = NULL;
 780 uschar *pid_file_path          = US PID_FILE_PATH
 781                            "\0<--------------Space to patch pid_file_path->";
 782 uschar *pipelining_advertise_hosts = US"*";
 783 BOOL    preserve_message_logs  = FALSE;
 784 uschar *primary_hostname       = NULL;
 785 BOOL    print_topbitchars      = FALSE;
 786 uschar  process_info[PROCESS_INFO_SIZE];
 787 uschar *process_log_path       = NULL;
 788 BOOL    prod_requires_admin    = TRUE;
 789 uschar *prvscheck_address      = NULL;
 790 uschar *prvscheck_keynum       = NULL;
 791 uschar *prvscheck_result       = NULL;
 792
 793
 794 uschar *qualify_domain_recipient = NULL;
 795 uschar *qualify_domain_sender  = NULL;
 796 BOOL    queue_2stage           = FALSE;
 797 uschar *queue_domains          = NULL;
 798 int     queue_interval         = -1;
 799 BOOL    queue_list_requires_admin = TRUE;
 800 BOOL    queue_only             = FALSE;
 801 uschar *queue_only_file        = NULL;
 802 int     queue_only_load        = -1;
 803 BOOL    queue_only_override    = TRUE;
 804 BOOL    queue_only_policy      = FALSE;
 805 BOOL    queue_run_first_delivery = FALSE;
 806 BOOL    queue_run_force        = FALSE;
 807 BOOL    queue_run_in_order     = FALSE;
 808 BOOL    queue_run_local        = FALSE;
 809 int     queue_run_max          = 5;
 810 pid_t   queue_run_pid          = (pid_t)0;
 811 int     queue_run_pipe         = -1;
 812 BOOL    queue_running          = FALSE;
 813 BOOL    queue_smtp             = FALSE;
 814 uschar *queue_smtp_domains     = NULL;
 815
 816 unsigned int random_seed       = 0;
 817 tree_node *ratelimiters_cmd    = NULL;
 818 tree_node *ratelimiters_conn   = NULL;
 819 tree_node *ratelimiters_mail   = NULL;
 820 uschar *raw_active_hostname    = NULL;
 821 uschar *raw_sender             = NULL;
 822 uschar **raw_recipients        = NULL;
 823 int     raw_recipients_count   = 0;
 824
 825 int     rcpt_count             = 0;
 826 int     rcpt_fail_count        = 0;
 827 int     rcpt_defer_count       = 0;
 828 gid_t   real_gid;
 829 uid_t   real_uid;
 830 BOOL    really_exim            = TRUE;
 831 BOOL    receive_call_bombout   = FALSE;
 832 int     receive_linecount      = 0;
 833 int     receive_messagecount   = 0;
 834 int     receive_timeout        = 0;
 835 int     received_count         = 0;
 836 uschar *received_for           = NULL;
 837
 838 /*  This is the default text for Received headers generated by Exim. The
 839 date  will be automatically added on the end. */
 840
 841 uschar *received_header_text   = US
 842      "Received: "
 843      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 844      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 845      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 846      "by $primary_hostname "
 847      "${if def:received_protocol {with $received_protocol}} "
 848      #ifdef SUPPORT_TLS
 849      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 850      #endif
 851      "(Exim $version_number)\n\t"
 852      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 853      "id $message_exim_id"
 854      "${if def:received_for {\n\tfor $received_for}}"
 855      "\0<---------------Space to patch received_header_text->";
 856
 857 int     received_headers_max   = 30;
 858 uschar *received_protocol      = NULL;
 859 int     received_time          = 0;
 860 uschar *recipient_data         = NULL;
 861 uschar *recipient_unqualified_hosts = NULL;
 862 uschar *recipient_verify_failure = NULL;
 863 int     recipients_count       = 0;
 864 BOOL    recipients_discarded   = FALSE;
 865 recipient_item  *recipients_list = NULL;
 866 int     recipients_list_max    = 0;
 867 int     recipients_max         = 0;
 868 BOOL    recipients_max_reject  = FALSE;
 869 const pcre *regex_AUTH         = NULL;
 870 const pcre *regex_check_dns_names = NULL;
 871 const pcre *regex_From         = NULL;
 872 const pcre *regex_IGNOREQUOTA  = NULL;
 873 const pcre *regex_PIPELINING   = NULL;
 874 const pcre *regex_SIZE         = NULL;
 875 const pcre *regex_smtp_code    = NULL;
 876 const pcre *regex_ismsgid      = NULL;
 877 #ifdef WITH_CONTENT_SCAN
 878 uschar *regex_match_string     = NULL;
 879 #endif
 880 int     remote_delivery_count  = 0;
 881 int     remote_max_parallel    = 2;
 882 uschar *remote_sort_domains    = NULL;
 883 int     retry_data_expire      = 7*24*60*60;
 884 int     retry_interval_max     = 24*60*60;
 885 int     retry_maximum_timeout  = 0;        /* set from retry config */
 886 retry_config  *retries         = NULL;
 887 uschar *return_path            = NULL;
 888 BOOL    return_path_remove     = TRUE;
 889 int     rewrite_existflags     = 0;
 890 uschar *rfc1413_hosts          = US"*";
 891 int     rfc1413_query_timeout  = 5;
 892 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 893 uid_t   root_uid               = ROOT_UID;
 894
 895 router_instance  *routers  = NULL;
 896 router_instance  router_defaults = {
 897     NULL,                      /* chain pointer */
 898     NULL,                      /* name */
 899     NULL,                      /* info */
 900     NULL,                      /* private options block pointer */
 901     NULL,                      /* driver name */
 902
 903     NULL,                      /* address_data */
 904 #ifdef EXPERIMENTAL_BRIGHTMAIL
 905     NULL,                      /* bmi_rule */
 906 #endif
 907     NULL,                      /* cannot_route_message */
 908     NULL,                      /* condition */
 909     NULL,                      /* current_directory */
 910     NULL,                      /* debug_string */
 911     NULL,                      /* domains */
 912     NULL,                      /* errors_to */
 913     NULL,                      /* expand_gid */
 914     NULL,                      /* expand_uid */
 915     NULL,                      /* expand_more */
 916     NULL,                      /* expand_unseen */
 917     NULL,                      /* extra_headers */
 918     NULL,                      /* fallback_hosts */
 919     NULL,                      /* home_directory */
 920     NULL,                      /* ignore_target_hosts */
 921     NULL,                      /* local_parts */
 922     NULL,                      /* pass_router_name */
 923     NULL,                      /* prefix */
 924     NULL,                      /* redirect_router_name */
 925     NULL,                      /* remove_headers */
 926     NULL,                      /* require_files */
 927     NULL,                      /* router_home_directory */
 928     US"freeze",                /* self */
 929     NULL,                      /* senders */
 930     NULL,                      /* suffix */
 931     NULL,                      /* translate_ip_address */
 932     NULL,                      /* transport_name */
 933
 934     TRUE,                      /* address_test */
 935 #ifdef EXPERIMENTAL_BRIGHTMAIL
 936     FALSE,                     /* bmi_deliver_alternate */
 937     FALSE,                     /* bmi_deliver_default */
 938     FALSE,                     /* bmi_dont_deliver */
 939 #endif
 940     TRUE,                      /* expn */
 941     FALSE,                     /* caseful_local_part */
 942     FALSE,                     /* check_local_user */
 943     FALSE,                     /* disable_logging */
 944     FALSE,                     /* fail_verify_recipient */
 945     FALSE,                     /* fail_verify_sender */
 946     FALSE,                     /* gid_set */
 947     FALSE,                     /* initgroups */
 948     TRUE_UNSET,                /* log_as_local */
 949     TRUE,                      /* more */
 950     FALSE,                     /* pass_on_timeout */
 951     FALSE,                     /* prefix_optional */
 952     TRUE,                      /* repeat_use */
 953     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 954     FALSE,                     /* same_domain_copy_routing */
 955     FALSE,                     /* self_rewrite */
 956     FALSE,                     /* suffix_optional */
 957     FALSE,                     /* verify_only */
 958     TRUE,                      /* verify_recipient */
 959     TRUE,                      /* verify_sender */
 960     FALSE,                     /* uid_set */
 961     FALSE,                     /* unseen */
 962
 963     self_freeze,               /* self_code */
 964     (uid_t)(-1),               /* uid */
 965     (gid_t)(-1),               /* gid */
 966
 967     NULL,                      /* fallback_hostlist */
 968     NULL,                      /* transport instance */
 969     NULL,                      /* pass_router */
 970     NULL                       /* redirect_router */
 971 };
 972
 973 ip_address_item *running_interfaces = NULL;
 974 BOOL    running_in_test_harness = FALSE;
 975
 976 /* This is a weird one. The following string gets patched in the binary by the
 977 script that sets up a copy of Exim for running in the test harness. It seems
 978 that compilers are now clever, and share constant strings if they can.
 979 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 980 make use of the end of this string in order to save space. So the patching then
 981 wrecks this. We default this optimization by adding some additional characters
 982 onto the end of the string. */
 983
 984 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 985
 986 int     runrc                  = 0;
 987
 988 uschar *search_error_message   = NULL;
 989 BOOL    search_find_defer      = FALSE;
 990 uschar *self_hostname          = NULL;
 991 uschar *sender_address         = NULL;
 992 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 993 uschar *sender_address_data    = NULL;
 994 BOOL    sender_address_forced  = FALSE;
 995 uschar *sender_address_unrewritten = NULL;
 996 uschar *sender_data            = NULL;
 997 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 998 uschar *sender_fullhost        = NULL;
 999 uschar *sender_helo_name       = NULL;
1000 uschar **sender_host_aliases   = &no_aliases;
1001 uschar *sender_host_address    = NULL;
1002 uschar *sender_host_authenticated = NULL;
1003 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1004 uschar *sender_host_name       = NULL;
1005 int     sender_host_port       = 0;
1006 BOOL    sender_host_notsocket  = FALSE;
1007 BOOL    sender_host_unknown    = FALSE;
1008 uschar *sender_ident           = NULL;
1009 BOOL    sender_local           = FALSE;
1010 BOOL    sender_name_forced     = FALSE;
1011 uschar *sender_rate            = NULL;
1012 uschar *sender_rate_limit      = NULL;
1013 uschar *sender_rate_period     = NULL;
1014 uschar *sender_rcvhost         = NULL;
1015 BOOL    sender_set_untrusted   = FALSE;
1016 uschar *sender_unqualified_hosts = NULL;
1017 uschar *sender_verify_failure = NULL;
1018 address_item *sender_verified_list  = NULL;
1019 address_item *sender_verified_failed = NULL;
1020 int     sender_verified_rc     = -1;
1021 BOOL    sender_verified_responded = FALSE;
1022 volatile  BOOL sigalrm_seen    = FALSE;
1023 uschar **sighup_argv           = NULL;
1024 int     smtp_accept_count      = 0;
1025 BOOL    smtp_accept_keepalive  = TRUE;
1026 int     smtp_accept_max        = 20;
1027 int     smtp_accept_max_nonmail= 10;
1028 uschar *smtp_accept_max_nonmail_hosts = US"*";
1029 int     smtp_accept_max_per_connection = 1000;
1030 uschar *smtp_accept_max_per_host = NULL;
1031 int     smtp_accept_queue      = 0;
1032 int     smtp_accept_queue_per_connection = 10;
1033 int     smtp_accept_reserve    = 0;
1034 uschar *smtp_active_hostname   = NULL;
1035 BOOL    smtp_authenticated     = FALSE;
1036 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1037                              "Exim $version_number $tod_full"
1038                              "\0<---------------Space to patch smtp_banner->";
1039 BOOL    smtp_batched_input     = FALSE;
1040 BOOL    smtp_check_spool_space = TRUE;
1041 uschar *smtp_cmd_argument      = NULL;
1042 uschar *smtp_cmd_buffer        = NULL;
1043 int     smtp_connect_backlog   = 20;
1044 double  smtp_delay_mail        = 0.0;
1045 double  smtp_delay_rcpt        = 0.0;
1046 BOOL    smtp_enforce_sync      = TRUE;
1047 FILE   *smtp_in                = NULL;
1048 BOOL    smtp_input             = FALSE;
1049 int     smtp_load_reserve      = -1;
1050 int     smtp_mailcmd_count     = 0;
1051 FILE   *smtp_out               = NULL;
1052 uschar *smtp_etrn_command      = NULL;
1053 BOOL    smtp_etrn_serialize    = TRUE;
1054 int     smtp_max_synprot_errors= 3;
1055 int     smtp_max_unknown_commands = 3;
1056 uschar *smtp_ratelimit_hosts   = NULL;
1057 uschar *smtp_ratelimit_mail    = NULL;
1058 uschar *smtp_ratelimit_rcpt    = NULL;
1059 uschar *smtp_read_error        = US"";
1060 int     smtp_receive_timeout   = 5*60;
1061 uschar *smtp_reserve_hosts     = NULL;
1062 BOOL    smtp_return_error_details = FALSE;
1063 int     smtp_rlm_base          = 0;
1064 double  smtp_rlm_factor        = 0.0;
1065 int     smtp_rlm_limit         = 0;
1066 int     smtp_rlm_threshold     = INT_MAX;
1067 int     smtp_rlr_base          = 0;
1068 double  smtp_rlr_factor        = 0.0;
1069 int     smtp_rlr_limit         = 0;
1070 int     smtp_rlr_threshold     = INT_MAX;
1071 BOOL    smtp_use_pipelining    = FALSE;
1072 BOOL    smtp_use_size          = FALSE;
1073
1074 #ifdef WITH_CONTENT_SCAN
1075 uschar *spamd_address          = US"127.0.0.1 783";
1076 uschar *spam_bar               = NULL;
1077 uschar *spam_report            = NULL;
1078 uschar *spam_score             = NULL;
1079 uschar *spam_score_int         = NULL;
1080 #endif
1081 #ifdef EXPERIMENTAL_SPF
1082 uschar *spf_header_comment     = NULL;
1083 uschar *spf_received           = NULL;
1084 uschar *spf_result             = NULL;
1085 uschar *spf_smtp_comment       = NULL;
1086 #endif
1087
1088 BOOL    split_spool_directory  = FALSE;
1089 uschar *spool_directory        = US SPOOL_DIRECTORY
1090                            "\0<--------------Space to patch spool_directory->";
1091 #ifdef EXPERIMENTAL_SRS
1092 uschar *srs_config             = NULL;
1093 uschar *srs_db_address         = NULL;
1094 uschar *srs_db_key             = NULL;
1095 int     srs_hashlength         = 6;
1096 int     srs_hashmin            = -1;
1097 int     srs_maxage             = 31;
1098 uschar *srs_orig_recipient     = NULL;
1099 uschar *srs_orig_sender        = NULL;
1100 uschar *srs_recipient          = NULL;
1101 uschar *srs_secrets            = NULL;
1102 uschar *srs_status             = NULL;
1103 BOOL    srs_usehash            = TRUE;
1104 BOOL    srs_usetimestamp       = TRUE;
1105 #endif
1106 BOOL    strict_acl_vars        = FALSE;
1107 int     string_datestamp_offset= -1;
1108 BOOL    strip_excess_angle_brackets = FALSE;
1109 BOOL    strip_trailing_dot     = FALSE;
1110 uschar *submission_domain      = NULL;
1111 BOOL    submission_mode        = FALSE;
1112 uschar *submission_name        = NULL;
1113 BOOL    suppress_local_fixups  = FALSE;
1114 BOOL    synchronous_delivery   = FALSE;
1115 BOOL    syslog_duplication     = TRUE;
1116 int     syslog_facility        = LOG_MAIL;
1117 uschar *syslog_processname     = US"exim";
1118 BOOL    syslog_timestamp       = TRUE;
1119 uschar *system_filter          = NULL;
1120
1121 uschar *system_filter_directory_transport = NULL;
1122 uschar *system_filter_file_transport = NULL;
1123 uschar *system_filter_pipe_transport = NULL;
1124 uschar *system_filter_reply_transport = NULL;
1125
1126 gid_t   system_filter_gid      = 0;
1127 BOOL    system_filter_gid_set  = FALSE;
1128 uid_t   system_filter_uid      = 0;
1129 BOOL    system_filter_uid_set  = FALSE;
1130 BOOL    system_filtering       = FALSE;
1131
1132 BOOL    tcp_nodelay            = TRUE;
1133 int     thismessage_size_limit = 0;
1134 int     timeout_frozen_after   = 0;
1135 BOOL    timestamps_utc         = FALSE;
1136
1137 transport_instance  *transports = NULL;
1138
1139 transport_instance  transport_defaults = {
1140     NULL,                     /* chain pointer */
1141     NULL,                     /* name */
1142     NULL,                     /* info */
1143     NULL,                     /* private options block pointer */
1144     NULL,                     /* driver name */
1145     NULL,                     /* setup entry point */
1146     1,                        /* batch_max */
1147     NULL,                     /* batch_id */
1148     NULL,                     /* home_dir */
1149     NULL,                     /* current_dir */
1150     TRUE,                     /* multi-domain */
1151     FALSE,                    /* overrides_hosts */
1152     100,                      /* max_addresses */
1153     500,                      /* connection_max_messages */
1154     FALSE,                    /* deliver_as_creator */
1155     FALSE,                    /* disable_logging */
1156     FALSE,                    /* initgroups */
1157     FALSE,                    /* uid_set */
1158     FALSE,                    /* gid_set */
1159     (uid_t)(-1),              /* uid */
1160     (gid_t)(-1),              /* gid */
1161     NULL,                     /* expand_uid */
1162     NULL,                     /* expand_gid */
1163     NULL,                     /* warn_message */
1164     NULL,                     /* shadow */
1165     NULL,                     /* shadow_condition */
1166     NULL,                     /* filter_command */
1167     NULL,                     /* add_headers */
1168     NULL,                     /* remove_headers */
1169     NULL,                     /* return_path */
1170     NULL,                     /* debug_string */
1171     NULL,                     /* message_size_limit */
1172     NULL,                     /* headers_rewrite */
1173     NULL,                     /* rewrite_rules */
1174     0,                        /* rewrite_existflags */
1175     300,                      /* filter_timeout */
1176     FALSE,                    /* body_only */
1177     FALSE,                    /* delivery_date_add */
1178     FALSE,                    /* envelope_to_add */
1179     FALSE,                    /* headers_only */
1180     FALSE,                    /* rcpt_include_affixes */
1181     FALSE,                    /* return_path_add */
1182     FALSE,                    /* return_output */
1183     FALSE,                    /* return_fail_output */
1184     FALSE,                    /* log_output */
1185     FALSE,                    /* log_fail_output */
1186     FALSE,                    /* log_defer_output */
1187     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1188                                  1 nor 0 so can detect unset */
1189 };
1190
1191 int     transport_count;
1192 uschar **transport_filter_argv  = NULL;
1193 int     transport_filter_timeout;
1194 BOOL    transport_filter_timed_out = FALSE;
1195 int     transport_write_timeout= 0;
1196
1197 tree_node  *tree_dns_fails     = NULL;
1198 tree_node  *tree_duplicates    = NULL;
1199 tree_node  *tree_nonrecipients = NULL;
1200 tree_node  *tree_unusable      = NULL;
1201
1202 BOOL    trusted_caller         = FALSE;
1203 gid_t  *trusted_groups         = NULL;
1204 uid_t  *trusted_users          = NULL;
1205 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1206
1207 uschar *unknown_login          = NULL;
1208 uschar *unknown_username       = NULL;
1209 uschar *untrusted_set_sender   = NULL;
1210
1211 /*  A regex for matching a "From_" line in an incoming message, in the form
1212
1213     From ph10 Fri Jan  5 12:35 GMT 1996
1214
1215 which  the "mail" commands send to the MTA (undocumented, of course), or in
1216 the  form
1217
1218     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1219
1220 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1221 Because  of variations in time formats, just match up to the minutes. That
1222 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1223 so  just require one digit for hours and minutes. The weekday is also absent
1224 in  some forms. */
1225
1226 uschar *uucp_from_pattern      = US
1227    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1228    "(?:"                                          /* Non-extracting bracket */
1229    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1230    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1231    ")"                                            /* End alternation */
1232    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1233
1234 uschar *uucp_from_sender       = US"$1";
1235
1236 uschar *warn_message_file      = NULL;
1237 uschar *warnmsg_delay          = NULL;
1238 uschar *warnmsg_recipients     = NULL;
1239 BOOL    write_rejectlog        = TRUE;
1240
1241 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1242 uschar *version_date           = US"?";
1243 uschar *version_cnumber        = US"????";
1244 uschar *version_string         = US"?";
1245
1246 int     warning_count          = 0;
1247
1248 /*  End of globals.c */