src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.40 2005/11/14 15:28:48 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2005 */
   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 tree_node *acl_anchor          = NULL;
 166 uschar *acl_not_smtp           = NULL;
 167 #ifdef WITH_CONTENT_SCAN
 168 uschar *acl_not_smtp_mime      = NULL;
 169 #endif
 170 uschar *acl_smtp_auth          = NULL;
 171 uschar *acl_smtp_connect       = NULL;
 172 uschar *acl_smtp_data          = NULL;
 173 uschar *acl_smtp_etrn          = NULL;
 174 uschar *acl_smtp_expn          = NULL;
 175 uschar *acl_smtp_helo          = NULL;
 176 uschar *acl_smtp_mail          = NULL;
 177 uschar *acl_smtp_mailauth      = NULL;
 178 #ifdef WITH_CONTENT_SCAN
 179 uschar *acl_smtp_mime          = NULL;
 180 #endif
 181 uschar *acl_smtp_predata       = NULL;
 182 uschar *acl_smtp_quit          = NULL;
 183 uschar *acl_smtp_rcpt          = NULL;
 184 uschar *acl_smtp_starttls      = NULL;
 185 uschar *acl_smtp_vrfy          = NULL;
 186 BOOL    acl_temp_details       = FALSE;
 187 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
 188 uschar *acl_verify_message     = NULL;
 189 header_line *acl_warn_headers  = NULL;
 190 string_item *acl_warn_logged   = NULL;
 191
 192 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 193 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 194
 195 uschar *acl_wherenames[]       = { US"RCPT",
 196                                    US"MAIL",
 197                                    US"PREDATA",
 198                                    US"MIME",
 199                                    US"DATA",
 200                                    US"non-SMTP",
 201                                    US"AUTH",
 202                                    US"connection",
 203                                    US"ETRN",
 204                                    US"EXPN",
 205                                    US"EHLO or HELO",
 206                                    US"MAILAUTH",
 207                                    US"QUIT",
 208                                    US"STARTTLS",
 209                                    US"VRFY"
 210                                  };
 211
 212 int     acl_wherecodes[]       = { 550,     /* RCPT */
 213                                    550,     /* MAIL */
 214                                    550,     /* PREDATA */
 215                                    550,     /* MIME */
 216                                    550,     /* DATA */
 217                                    0,       /* not SMTP; not relevant */
 218                                    503,     /* AUTH */
 219                                    550,     /* connect */
 220                                    458,     /* ETRN */
 221                                    550,     /* EXPN */
 222                                    550,     /* HELO/EHLO */
 223                                    0,       /* MAILAUTH; not relevant */
 224                                    0,       /* QUIT; not relevant */
 225                                    550,     /* STARTTLS */
 226                                    252      /* VRFY */
 227                                  };
 228
 229 BOOL    active_local_from_check = FALSE;
 230 BOOL    active_local_sender_retain = FALSE;
 231 BOOL    accept_8bitmime        = FALSE;
 232 address_item  *addr_duplicate  = NULL;
 233
 234 address_item address_defaults = {
 235   NULL,                 /* next */
 236   NULL,                 /* parent */
 237   NULL,                 /* first */
 238   NULL,                 /* dupof */
 239   NULL,                 /* start_router */
 240   NULL,                 /* router */
 241   NULL,                 /* transport */
 242   NULL,                 /* host_list */
 243   NULL,                 /* host_used */
 244   NULL,                 /* fallback_hosts */
 245   NULL,                 /* reply */
 246   NULL,                 /* retries */
 247   NULL,                 /* address */
 248   NULL,                 /* unique */
 249   NULL,                 /* cc_local_part */
 250   NULL,                 /* lc_local_part */
 251   NULL,                 /* local_part */
 252   NULL,                 /* prefix */
 253   NULL,                 /* suffix */
 254   NULL,                 /* domain */
 255   NULL,                 /* address_retry_key */
 256   NULL,                 /* domain_retry_key */
 257   NULL,                 /* current_dir */
 258   NULL,                 /* home_dir */
 259   NULL,                 /* message */
 260   NULL,                 /* user_message */
 261   NULL,                 /* onetime_parent */
 262   NULL,                 /* pipe_expandn */
 263   NULL,                 /* return_filename */
 264   NULL,                 /* self_hostname */
 265   NULL,                 /* shadow_message */
 266   #ifdef SUPPORT_TLS
 267   NULL,                 /* cipher */
 268   NULL,                 /* peerdn */
 269   #endif
 270   (uid_t)(-1),          /* uid */
 271   (gid_t)(-1),          /* gid */
 272   0,                    /* flags */
 273   { 0 },                /* domain_cache - any larger array should be zeroed */
 274   { 0 },                /* localpart_cache - ditto */
 275   -1,                   /* mode */
 276   0,                    /* more_errno */
 277   ERRNO_UNKNOWNERROR,   /* basic_errno */
 278   0,                    /* child_count */
 279   -1,                   /* return_file */
 280   SPECIAL_NONE,         /* special_action */
 281   DEFER,                /* transport_return */
 282   {                     /* fields that are propagated to children */
 283     NULL,               /* address_data */
 284     NULL,               /* domain_data */
 285     NULL,               /* localpart_data */
 286     NULL,               /* errors_address */
 287     NULL,               /* extra_headers */
 288     NULL,               /* remove_headers */
 289 #ifdef EXPERIMENTAL_SRS
 290     NULL,               /* srs_sender */
 291 #endif
 292   }
 293 };
 294
 295 uschar *address_file           = NULL;
 296 uschar *address_pipe           = NULL;
 297 BOOL    address_test_mode      = FALSE;
 298 tree_node *addresslist_anchor  = NULL;
 299 int     addresslist_count      = 0;
 300 gid_t  *admin_groups           = NULL;
 301 BOOL    admin_user             = FALSE;
 302 BOOL    allow_domain_literals  = FALSE;
 303 BOOL    allow_mx_to_ip         = FALSE;
 304 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 305 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 306 BOOL    allow_utf8_domains     = FALSE;
 307 uschar *authenticated_id       = NULL;
 308 uschar *authenticated_sender   = NULL;
 309 BOOL    authentication_failed  = FALSE;
 310 auth_instance  *auths          = NULL;
 311 uschar *auth_advertise_hosts   = US"*";
 312 auth_instance auth_defaults    = {
 313     NULL,                      /* chain pointer */
 314     NULL,                      /* name */
 315     NULL,                      /* info */
 316     NULL,                      /* private options block pointer */
 317     NULL,                      /* driver_name */
 318     NULL,                      /* advertise_condition */
 319     NULL,                      /* public_name */
 320     NULL,                      /* set_id */
 321     NULL,                      /* server_mail_auth_condition */
 322     NULL,                      /* server_debug_string */
 323     FALSE,                     /* client */
 324     FALSE,                     /* server */
 325     FALSE                      /* advertised */
 326 };
 327
 328 uschar *auth_defer_msg         = US"reason not recorded";
 329 uschar *auth_defer_user_msg    = US"";
 330 int     auto_thaw              = 0;
 331 #ifdef WITH_CONTENT_SCAN
 332 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 333 #endif
 334
 335 BOOL    background_daemon      = TRUE;
 336
 337 #if BASE_62 == 62
 338 uschar *base62_chars=
 339     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 340 #else
 341 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 342 #endif
 343
 344 uschar *bi_command             = NULL;
 345 uschar *big_buffer             = NULL;
 346 int     big_buffer_size        = BIG_BUFFER_SIZE;
 347 #ifdef EXPERIMENTAL_BRIGHTMAIL
 348 uschar *bmi_alt_location       = NULL;
 349 uschar *bmi_base64_tracker_verdict = NULL;
 350 uschar *bmi_base64_verdict     = NULL;
 351 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 352 int     bmi_deliver            = 1;
 353 int     bmi_run                = 0;
 354 uschar *bmi_verdicts           = NULL;
 355 #endif
 356 int     body_linecount         = 0;
 357 int     body_zerocount         = 0;
 358 uschar *bounce_message_file    = NULL;
 359 uschar *bounce_message_text    = NULL;
 360 uschar *bounce_recipient       = NULL;
 361 BOOL    bounce_return_body     = TRUE;
 362 BOOL    bounce_return_message  = TRUE;
 363 int     bounce_return_size_limit = 100*1024;
 364 uschar *bounce_sender_authentication = NULL;
 365 int     bsmtp_transaction_linecount = 0;
 366
 367 int     callout_cache_domain_positive_expire = 7*24*60*60;
 368 int     callout_cache_domain_negative_expire = 3*60*60;
 369 int     callout_cache_positive_expire = 24*60*60;
 370 int     callout_cache_negative_expire = 2*60*60;
 371 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 372 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 373 int     check_log_inodes       = 0;
 374 int     check_log_space        = 0;
 375 int     check_spool_inodes     = 0;
 376 int     check_spool_space      = 0;
 377 int     clmacro_count          = 0;
 378 uschar *clmacros[MAX_CLMACROS];
 379 BOOL    config_changed         = FALSE;
 380 FILE   *config_file            = NULL;
 381 uschar *config_filename        = NULL;
 382 int     config_lineno          = 0;
 383 #ifdef CONFIGURE_GROUP
 384 gid_t   config_gid             = CONFIGURE_GROUP;
 385 #endif
 386 uschar *config_main_filelist   = US CONFIGURE_FILE
 387                          "\0<-----------Space to patch configure_filename->";
 388 uschar *config_main_filename   = NULL;
 389
 390 #ifdef CONFIGURE_OWNER
 391 uid_t   config_uid             = CONFIGURE_OWNER;
 392 #endif
 393
 394 int     connection_max_messages= -1;
 395 uschar *continue_hostname      = NULL;
 396 uschar *continue_host_address  = NULL;
 397 BOOL    continue_more          = FALSE;
 398 int     continue_sequence      = 1;
 399 uschar *continue_transport     = NULL;
 400
 401 uschar *csa_status             = NULL;
 402
 403 BOOL    daemon_listen          = FALSE;
 404 uschar *daemon_smtp_port       = US"smtp";
 405 int     daemon_startup_retries = 9;
 406 int     daemon_startup_sleep   = 30;
 407 BOOL    debug_daemon           = FALSE;
 408 int     debug_fd               = -1;
 409 FILE   *debug_file             = NULL;
 410 bit_table debug_options[]      = {
 411   { US"acl",            D_acl },
 412   { US"all",            D_all },
 413   { US"auth",           D_auth },
 414   { US"deliver",        D_deliver },
 415   { US"dns",            D_dns },
 416   { US"dnsbl",          D_dnsbl },
 417   { US"exec",           D_exec },
 418   { US"expand",         D_expand },
 419   { US"filter",         D_filter },
 420   { US"hints_lookup",   D_hints_lookup },
 421   { US"host_lookup",    D_host_lookup },
 422   { US"ident",          D_ident },
 423   { US"interface",      D_interface },
 424   { US"lists",          D_lists },
 425   { US"load",           D_load },
 426   { US"local_scan",     D_local_scan },
 427   { US"lookup",         D_lookup },
 428   { US"memory",         D_memory },
 429   { US"pid",            D_pid },
 430   { US"process_info",   D_process_info },
 431   { US"queue_run",      D_queue_run },
 432   { US"receive",        D_receive },
 433   { US"resolver",       D_resolver },
 434   { US"retry",          D_retry },
 435   { US"rewrite",        D_rewrite },
 436   { US"route",          D_route },
 437   { US"timestamp",      D_timestamp },
 438   { US"tls",            D_tls },
 439   { US"transport",      D_transport },
 440   { US"uid",            D_uid },
 441   { US"verify",         D_verify }
 442 };
 443 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 444 unsigned int debug_selector    = 0;
 445 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 446 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 447 BOOL    delivery_date_remove   = TRUE;
 448 uschar *deliver_address_data   = NULL;
 449 int     deliver_datafile       = -1;
 450 uschar *deliver_domain         = NULL;
 451 uschar *deliver_domain_data    = NULL;
 452 uschar *deliver_domain_orig    = NULL;
 453 uschar *deliver_domain_parent  = NULL;
 454 BOOL    deliver_drop_privilege = FALSE;
 455 BOOL    deliver_firsttime      = FALSE;
 456 BOOL    deliver_force          = FALSE;
 457 BOOL    deliver_freeze         = FALSE;
 458 int     deliver_frozen_at      = 0;
 459 uschar *deliver_home           = NULL;
 460 uschar *deliver_host           = NULL;
 461 uschar *deliver_host_address   = NULL;
 462 uschar *deliver_in_buffer      = NULL;
 463 ino_t   deliver_inode          = 0;
 464 uschar *deliver_localpart      = NULL;
 465 uschar *deliver_localpart_data = NULL;
 466 uschar *deliver_localpart_orig = NULL;
 467 uschar *deliver_localpart_parent = NULL;
 468 uschar *deliver_localpart_prefix = NULL;
 469 uschar *deliver_localpart_suffix = NULL;
 470 BOOL    deliver_force_thaw     = FALSE;
 471 BOOL    deliver_manual_thaw    = FALSE;
 472 uschar *deliver_out_buffer     = NULL;
 473 int     deliver_queue_load_max = -1;
 474 address_item  *deliver_recipients = NULL;
 475 uschar *deliver_selectstring   = NULL;
 476 BOOL    deliver_selectstring_regex = FALSE;
 477 uschar *deliver_selectstring_sender = NULL;
 478 BOOL    deliver_selectstring_sender_regex = FALSE;
 479 #ifdef WITH_OLD_DEMIME
 480 int     demime_errorlevel      = 0;
 481 int     demime_ok              = 0;
 482 uschar *demime_reason          = NULL;
 483 #endif
 484 BOOL    disable_logging        = FALSE;
 485
 486 #ifdef EXPERIMENTAL_DOMAINKEYS
 487 uschar *dk_signing_domain      = NULL;
 488 uschar *dk_signing_selector    = NULL;
 489 int     dk_do_verify           = 0;
 490 #endif
 491
 492 uschar *dns_again_means_nonexist = NULL;
 493 int     dns_csa_search_limit   = 5;
 494 BOOL    dns_csa_use_reverse    = TRUE;
 495 uschar *dns_ipv4_lookup        = NULL;
 496 int     dns_retrans            = 0;
 497 int     dns_retry              = 0;
 498 uschar *dnslist_domain         = NULL;
 499 uschar *dnslist_text           = NULL;
 500 uschar *dnslist_value          = NULL;
 501 tree_node *domainlist_anchor   = NULL;
 502 int     domainlist_count       = 0;
 503 BOOL    dont_deliver           = FALSE;
 504 BOOL    dot_ends               = TRUE;
 505 BOOL    drop_cr                = FALSE;         /* No longer used */
 506
 507 BOOL    enable_dollar_recipients = FALSE;
 508 BOOL    envelope_to_remove     = TRUE;
 509 int     errno_quota            = ERRNO_QUOTA;
 510 uschar *errors_copy            = NULL;
 511 int     error_handling         = ERRORS_SENDER;
 512 uschar *errors_reply_to        = NULL;
 513 int     errors_sender_rc       = EXIT_FAILURE;
 514
 515 gid_t   exim_gid               = EXIM_GID;
 516 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 517 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 518                         "\0<---------------Space to patch exim_path->";
 519 uid_t   exim_uid               = EXIM_UID;
 520 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 521 int     expand_forbid          = 0;
 522 int     expand_nlength[EXPAND_MAXN+1];
 523 int     expand_nmax            = -1;
 524 uschar *expand_nstring[EXPAND_MAXN+1];
 525 BOOL    expand_string_forcedfail = FALSE;
 526 uschar *expand_string_message;
 527 BOOL    extract_addresses_remove_arguments = TRUE;
 528 uschar *extra_local_interfaces = NULL;
 529
 530 int     fake_response          = OK;
 531 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).";
 532 int     filter_n[FILTER_VARIABLE_COUNT];
 533 BOOL    filter_running         = FALSE;
 534 int     filter_sn[FILTER_VARIABLE_COUNT];
 535 int     filter_test            = FTEST_NONE;
 536 uschar *filter_test_sfile      = NULL;
 537 uschar *filter_test_ufile      = NULL;
 538 uschar *filter_thisaddress     = NULL;
 539 int     finduser_retries       = 0;
 540 #ifdef WITH_OLD_DEMIME
 541 uschar *found_extension        = NULL;
 542 #endif
 543 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 544 uschar *freeze_tell            = NULL;
 545 uschar *fudged_queue_times     = US"";
 546
 547 uschar *gecos_name             = NULL;
 548 uschar *gecos_pattern          = NULL;
 549 rewrite_rule  *global_rewrite_rules = NULL;
 550
 551 uschar *headers_charset        = US HEADERS_CHARSET;
 552 int     header_insert_maxlen   = 64 * 1024;
 553 header_line  *header_last      = NULL;
 554 header_line  *header_list      = NULL;
 555 int     header_maxsize         = HEADER_MAXSIZE;
 556 int     header_line_maxsize    = 0;
 557
 558 header_name header_names[] = {
 559   { US"bcc",            3, TRUE,  htype_bcc },
 560   { US"cc",             2, TRUE,  htype_cc },
 561   { US"date",           4, TRUE,  htype_date },
 562   { US"delivery-date", 13, FALSE, htype_delivery_date },
 563   { US"envelope-to",   11, FALSE, htype_envelope_to },
 564   { US"from",           4, TRUE,  htype_from },
 565   { US"message-id",    10, TRUE,  htype_id },
 566   { US"received",       8, FALSE, htype_received },
 567   { US"reply-to",       8, FALSE, htype_reply_to },
 568   { US"return-path",   11, FALSE, htype_return_path },
 569   { US"sender",         6, TRUE,  htype_sender },
 570   { US"subject",        7, FALSE, htype_subject },
 571   { US"to",             2, TRUE,  htype_to }
 572 };
 573
 574 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 575
 576 BOOL    header_rewritten       = FALSE;
 577 uschar *helo_accept_junk_hosts = NULL;
 578 uschar *helo_allow_chars       = US"";
 579 uschar *helo_lookup_domains    = US"@ : @[]";
 580 uschar *helo_try_verify_hosts  = NULL;
 581 BOOL    helo_verified          = FALSE;
 582 BOOL    helo_verify_failed     = FALSE;
 583 uschar *helo_verify_hosts      = NULL;
 584 uschar *hex_digits             = US"0123456789abcdef";
 585 uschar *hold_domains           = NULL;
 586 BOOL    host_checking          = FALSE;
 587 BOOL    host_checking_callout  = FALSE;
 588 uschar *host_data              = NULL;
 589 BOOL    host_find_failed_syntax= FALSE;
 590 uschar *host_lookup            = NULL;
 591 BOOL    host_lookup_deferred   = FALSE;
 592 BOOL    host_lookup_failed     = FALSE;
 593 uschar *host_lookup_order      = US"bydns:byaddr";
 594 uschar *host_lookup_msg        = US"";
 595 int     host_number            = 0;
 596 uschar *host_number_string     = NULL;
 597 uschar *host_reject_connection = NULL;
 598 tree_node *hostlist_anchor     = NULL;
 599 int     hostlist_count         = 0;
 600 uschar *hosts_treat_as_local   = NULL;
 601 uschar *hosts_connection_nolog = NULL;
 602
 603 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 604 BOOL    ignore_fromline_local  = FALSE;
 605 uschar *ignore_fromline_hosts  = NULL;
 606 uschar *interface_address      = NULL;
 607 int     interface_port         = -1;
 608 BOOL    is_inetd               = FALSE;
 609
 610 int     journal_fd             = -1;
 611
 612 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 613
 614 uschar *eldap_dn               = NULL;
 615 int     load_average           = -2;
 616 BOOL    local_error_message    = FALSE;
 617 BOOL    local_from_check       = TRUE;
 618 uschar *local_from_prefix      = NULL;
 619 uschar *local_from_suffix      = NULL;
 620
 621 #if HAVE_IPV6
 622 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 623 #else
 624 uschar *local_interfaces       = US"0.0.0.0";
 625 #endif
 626
 627 uschar *local_scan_data        = NULL;
 628 int     local_scan_timeout     = 5*60;
 629 BOOL    local_sender_retain    = FALSE;
 630 gid_t   local_user_gid         = (gid_t)(-1);
 631 uid_t   local_user_uid         = (uid_t)(-1);
 632
 633 tree_node *localpartlist_anchor= NULL;
 634 int     localpartlist_count    = 0;
 635 uschar *log_buffer             = NULL;
 636 unsigned int log_extra_selector = LX_default;
 637 uschar *log_file_path          = US LOG_FILE_PATH
 638                            "\0<--------------Space to patch log_file_path->";
 639
 640 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 641 are the ones that get put into log_write_selector. They can be used in calls to
 642 log_write() to test for the bit. The options with LX_xxx identifiers have
 643 values greater than 0x80000000 and are put int log_extra_selector (without the
 644 top bit). They are never used in calls to log_write(), but are tested
 645 independently. This separation became necessary when the number of log
 646 selectors was getting close to filling a 32-bit word. */
 647
 648 bit_table log_options[]        = {
 649   { US"address_rewrite",              L_address_rewrite },
 650   { US"all",                          L_all },
 651   { US"all_parents",                  L_all_parents },
 652   { US"arguments",                    LX_arguments },
 653   { US"connection_reject",            L_connection_reject },
 654   { US"delay_delivery",               L_delay_delivery },
 655   { US"deliver_time",                 LX_deliver_time },
 656   { US"delivery_size",                LX_delivery_size },
 657   { US"dnslist_defer",                L_dnslist_defer },
 658   { US"etrn",                         L_etrn },
 659   { US"host_lookup_failed",           L_host_lookup_failed },
 660   { US"ident_timeout",                LX_ident_timeout },
 661   { US"incoming_interface",           LX_incoming_interface },
 662   { US"incoming_port",                LX_incoming_port },
 663   { US"lost_incoming_connection",     L_lost_incoming_connection },
 664   { US"outgoing_port",                LX_outgoing_port },
 665   { US"queue_run",                    L_queue_run },
 666   { US"queue_time",                   LX_queue_time },
 667   { US"queue_time_overall",           LX_queue_time_overall },
 668   { US"received_recipients",          LX_received_recipients },
 669   { US"received_sender",              LX_received_sender },
 670   { US"rejected_header",              LX_rejected_header },
 671   { US"rejected_headers",             LX_rejected_header },
 672   { US"retry_defer",                  L_retry_defer },
 673   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 674   { US"sender_on_delivery",           LX_sender_on_delivery },
 675   { US"size_reject",                  L_size_reject },
 676   { US"skip_delivery",                L_skip_delivery },
 677   { US"smtp_confirmation",            LX_smtp_confirmation },
 678   { US"smtp_connection",              L_smtp_connection },
 679   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 680   { US"smtp_protocol_error",          L_smtp_protocol_error },
 681   { US"smtp_syntax_error",            L_smtp_syntax_error },
 682   { US"subject",                      LX_subject },
 683   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 684   { US"tls_cipher",                   LX_tls_cipher },
 685   { US"tls_peerdn",                   LX_tls_peerdn },
 686   { US"unknown_in_list",              LX_unknown_in_list }
 687 };
 688
 689 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 690 unsigned int log_write_selector= L_default;
 691 uschar *log_selector_string    = NULL;
 692 FILE   *log_stderr             = NULL;
 693 BOOL    log_testing_mode       = FALSE;
 694 BOOL    log_timezone           = FALSE;
 695 uschar *login_sender_address   = NULL;
 696 int     lookup_open_max        = 25;
 697 uschar *lookup_value           = NULL;
 698
 699 macro_item  *macros            = NULL;
 700 uschar *mailstore_basename     = NULL;
 701 #ifdef WITH_CONTENT_SCAN
 702 uschar *malware_name           = NULL;  /* Virus Name */
 703 #endif
 704 int     max_username_length    = 0;
 705 int     message_age            = 0;
 706 uschar *message_body           = NULL;
 707 uschar *message_body_end       = NULL;
 708 int     message_body_size      = 0;
 709 int     message_body_visible   = 500;
 710 int     message_ended          = END_NOTSTARTED;
 711 uschar *message_headers        = NULL;
 712 uschar *message_id;
 713 uschar *message_id_domain      = NULL;
 714 uschar *message_id_text        = NULL;
 715 struct timeval message_id_tv   = { 0, 0 };
 716 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 717 uschar *message_id_external;
 718 int     message_linecount      = 0;
 719 BOOL    message_logs           = TRUE;
 720 int     message_size           = 0;
 721 uschar *message_size_limit     = US"50M";
 722 uschar  message_subdir[2]      = { 0, 0 };
 723 uschar *message_reference      = NULL;
 724
 725 /* MIME ACL expandables */
 726 #ifdef WITH_CONTENT_SCAN
 727 int     mime_anomaly_level     = 0;
 728 uschar *mime_anomaly_text      = NULL;
 729 uschar *mime_boundary          = NULL;
 730 uschar *mime_charset           = NULL;
 731 uschar *mime_content_description = NULL;
 732 uschar *mime_content_disposition = NULL;
 733 uschar *mime_content_id        = NULL;
 734 unsigned int mime_content_size = 0;
 735 uschar *mime_content_transfer_encoding = NULL;
 736 uschar *mime_content_type      = NULL;
 737 uschar *mime_decoded_filename  = NULL;
 738 uschar *mime_filename          = NULL;
 739 int     mime_is_multipart      = 0;
 740 int     mime_is_coverletter    = 0;
 741 int     mime_is_rfc822         = 0;
 742 int     mime_part_count        = -1;
 743 #endif
 744
 745 BOOL    mua_wrapper            = FALSE;
 746
 747 uid_t  *never_users            = NULL;
 748 #ifdef WITH_CONTENT_SCAN
 749 BOOL    no_mbox_unspool        = FALSE;
 750 #endif
 751 BOOL    no_multiline_responses = FALSE;
 752
 753 uid_t   original_euid;
 754 gid_t   originator_gid;
 755 uschar *originator_login       = NULL;
 756 uschar *originator_name        = NULL;
 757 uid_t   originator_uid;
 758 uschar *override_local_interfaces = NULL;
 759 uschar *override_pid_file_path = NULL;
 760
 761 BOOL    parse_allow_group      = FALSE;
 762 BOOL    parse_found_group      = FALSE;
 763 uschar *percent_hack_domains   = NULL;
 764 uschar *pid_file_path          = US PID_FILE_PATH
 765                            "\0<--------------Space to patch pid_file_path->";
 766 uschar *pipelining_advertise_hosts = US"*";
 767 BOOL    preserve_message_logs  = FALSE;
 768 uschar *primary_hostname       = NULL;
 769 BOOL    print_topbitchars      = FALSE;
 770 uschar  process_info[PROCESS_INFO_SIZE];
 771 uschar *process_log_path       = NULL;
 772 BOOL    prod_requires_admin    = TRUE;
 773 uschar *prvscheck_address      = NULL;
 774 uschar *prvscheck_keynum       = NULL;
 775 uschar *prvscheck_result       = NULL;
 776
 777
 778 uschar *qualify_domain_recipient = NULL;
 779 uschar *qualify_domain_sender  = NULL;
 780 BOOL    queue_2stage           = FALSE;
 781 uschar *queue_domains          = NULL;
 782 int     queue_interval         = -1;
 783 BOOL    queue_list_requires_admin = TRUE;
 784 BOOL    queue_only             = FALSE;
 785 uschar *queue_only_file        = NULL;
 786 int     queue_only_load        = -1;
 787 BOOL    queue_only_override    = TRUE;
 788 BOOL    queue_only_policy      = FALSE;
 789 BOOL    queue_run_first_delivery = FALSE;
 790 BOOL    queue_run_force        = FALSE;
 791 BOOL    queue_run_in_order     = FALSE;
 792 BOOL    queue_run_local        = FALSE;
 793 int     queue_run_max          = 5;
 794 pid_t   queue_run_pid          = (pid_t)0;
 795 int     queue_run_pipe         = -1;
 796 BOOL    queue_running          = FALSE;
 797 BOOL    queue_smtp             = FALSE;
 798 uschar *queue_smtp_domains     = NULL;
 799
 800 unsigned int random_seed       = 0;
 801 tree_node *ratelimiters_cmd    = NULL;
 802 tree_node *ratelimiters_conn   = NULL;
 803 tree_node *ratelimiters_mail   = NULL;
 804 uschar *raw_active_hostname    = NULL;
 805 uschar *raw_sender             = NULL;
 806 uschar **raw_recipients        = NULL;
 807 int     raw_recipients_count   = 0;
 808
 809 int     rcpt_count             = 0;
 810 int     rcpt_fail_count        = 0;
 811 int     rcpt_defer_count       = 0;
 812 gid_t   real_gid;
 813 uid_t   real_uid;
 814 BOOL    really_exim            = TRUE;
 815 BOOL    receive_call_bombout   = FALSE;
 816 int     receive_linecount      = 0;
 817 int     receive_messagecount   = 0;
 818 int     receive_timeout        = 0;
 819 int     received_count         = 0;
 820 uschar *received_for           = NULL;
 821
 822 /*  This is the default text for Received headers generated by Exim. The
 823 date  will be automatically added on the end. */
 824
 825 uschar *received_header_text   = US
 826      "Received: "
 827      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 828      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 829      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 830      "by $primary_hostname "
 831      "${if def:received_protocol {with $received_protocol}} "
 832      #ifdef SUPPORT_TLS
 833      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 834      #endif
 835      "(Exim $version_number)\n\t"
 836      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 837      "id $message_exim_id"
 838      "${if def:received_for {\n\tfor $received_for}}"
 839      "\0<---------------Space to patch received_header_text->";
 840
 841 int     received_headers_max   = 30;
 842 uschar *received_protocol      = NULL;
 843 int     received_time          = 0;
 844 uschar *recipient_data         = NULL;
 845 uschar *recipient_unqualified_hosts = NULL;
 846 uschar *recipient_verify_failure = NULL;
 847 int     recipients_count       = 0;
 848 BOOL    recipients_discarded   = FALSE;
 849 recipient_item  *recipients_list = NULL;
 850 int     recipients_list_max    = 0;
 851 int     recipients_max         = 0;
 852 BOOL    recipients_max_reject  = FALSE;
 853 const pcre *regex_AUTH         = NULL;
 854 const pcre *regex_check_dns_names = NULL;
 855 const pcre *regex_From         = NULL;
 856 const pcre *regex_IGNOREQUOTA  = NULL;
 857 const pcre *regex_PIPELINING   = NULL;
 858 const pcre *regex_SIZE         = NULL;
 859 const pcre *regex_ismsgid      = NULL;
 860 #ifdef WITH_CONTENT_SCAN
 861 uschar *regex_match_string     = NULL;
 862 #endif
 863 int     remote_delivery_count  = 0;
 864 int     remote_max_parallel    = 2;
 865 uschar *remote_sort_domains    = NULL;
 866 int     retry_data_expire      = 7*24*60*60;
 867 int     retry_interval_max     = 24*60*60;
 868 int     retry_maximum_timeout  = 0;        /* set from retry config */
 869 retry_config  *retries         = NULL;
 870 uschar *return_path            = NULL;
 871 BOOL    return_path_remove     = TRUE;
 872 int     rewrite_existflags     = 0;
 873 uschar *rfc1413_hosts          = US"*";
 874 int     rfc1413_query_timeout  = 30;
 875 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 876 uid_t   root_uid               = ROOT_UID;
 877
 878 router_instance  *routers  = NULL;
 879 router_instance  router_defaults = {
 880     NULL,                      /* chain pointer */
 881     NULL,                      /* name */
 882     NULL,                      /* info */
 883     NULL,                      /* private options block pointer */
 884     NULL,                      /* driver name */
 885
 886     NULL,                      /* address_data */
 887 #ifdef EXPERIMENTAL_BRIGHTMAIL
 888     NULL,                      /* bmi_rule */
 889 #endif
 890     NULL,                      /* cannot_route_message */
 891     NULL,                      /* condition */
 892     NULL,                      /* current_directory */
 893     NULL,                      /* debug_string */
 894     NULL,                      /* domains */
 895     NULL,                      /* errors_to */
 896     NULL,                      /* expand_gid */
 897     NULL,                      /* expand_uid */
 898     NULL,                      /* expand_more */
 899     NULL,                      /* expand_unseen */
 900     NULL,                      /* extra_headers */
 901     NULL,                      /* fallback_hosts */
 902     NULL,                      /* home_directory */
 903     NULL,                      /* ignore_target_hosts */
 904     NULL,                      /* local_parts */
 905     NULL,                      /* pass_router_name */
 906     NULL,                      /* prefix */
 907     NULL,                      /* redirect_router_name */
 908     NULL,                      /* remove_headers */
 909     NULL,                      /* require_files */
 910     NULL,                      /* router_home_directory */
 911     US"freeze",                /* self */
 912     NULL,                      /* senders */
 913     NULL,                      /* suffix */
 914     NULL,                      /* translate_ip_address */
 915     NULL,                      /* transport_name */
 916
 917     TRUE,                      /* address_test */
 918 #ifdef EXPERIMENTAL_BRIGHTMAIL
 919     FALSE,                     /* bmi_deliver_alternate */
 920     FALSE,                     /* bmi_deliver_default */
 921     FALSE,                     /* bmi_dont_deliver */
 922 #endif
 923     TRUE,                      /* expn */
 924     FALSE,                     /* caseful_local_part */
 925     FALSE,                     /* check_local_user */
 926     FALSE,                     /* disable_logging */
 927     FALSE,                     /* fail_verify_recipient */
 928     FALSE,                     /* fail_verify_sender */
 929     FALSE,                     /* gid_set */
 930     FALSE,                     /* initgroups */
 931     TRUE_UNSET,                /* log_as_local */
 932     TRUE,                      /* more */
 933     FALSE,                     /* pass_on_timeout */
 934     FALSE,                     /* prefix_optional */
 935     TRUE,                      /* repeat_use */
 936     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 937     FALSE,                     /* same_domain_copy_routing */
 938     FALSE,                     /* self_rewrite */
 939     FALSE,                     /* suffix_optional */
 940     FALSE,                     /* verify_only */
 941     TRUE,                      /* verify_recipient */
 942     TRUE,                      /* verify_sender */
 943     FALSE,                     /* uid_set */
 944     FALSE,                     /* unseen */
 945
 946     self_freeze,               /* self_code */
 947     (uid_t)(-1),               /* uid */
 948     (gid_t)(-1),               /* gid */
 949
 950     NULL,                      /* fallback_hostlist */
 951     NULL,                      /* transport instance */
 952     NULL,                      /* pass_router */
 953     NULL                       /* redirect_router */
 954 };
 955
 956 ip_address_item *running_interfaces = NULL;
 957 BOOL    running_in_test_harness = FALSE;
 958
 959 /* This is a weird one. The following string gets patched in the binary by the
 960 script that sets up a copy of Exim for running in the test harness. It seems
 961 that compilers are now clever, and share constant strings if they can.
 962 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 963 make use of the end of this string in order to save space. So the patching then
 964 wrecks this. We default this optimization by adding some additional characters
 965 onto the end of the string. */
 966
 967 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 968
 969 int     runrc                  = 0;
 970
 971 uschar *search_error_message   = NULL;
 972 BOOL    search_find_defer      = FALSE;
 973 uschar *self_hostname          = NULL;
 974 uschar *sender_address         = NULL;
 975 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 976 uschar *sender_address_data    = NULL;
 977 BOOL    sender_address_forced  = FALSE;
 978 uschar *sender_address_unrewritten = NULL;
 979 uschar *sender_data            = NULL;
 980 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 981 uschar *sender_fullhost        = NULL;
 982 uschar *sender_helo_name       = NULL;
 983 uschar **sender_host_aliases   = &no_aliases;
 984 uschar *sender_host_address    = NULL;
 985 uschar *sender_host_authenticated = NULL;
 986 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 987 uschar *sender_host_name       = NULL;
 988 int     sender_host_port       = 0;
 989 BOOL    sender_host_notsocket  = FALSE;
 990 BOOL    sender_host_unknown    = FALSE;
 991 uschar *sender_ident           = NULL;
 992 BOOL    sender_local           = FALSE;
 993 BOOL    sender_name_forced     = FALSE;
 994 uschar *sender_rate            = NULL;
 995 uschar *sender_rate_limit      = NULL;
 996 uschar *sender_rate_period     = NULL;
 997 uschar *sender_rcvhost         = NULL;
 998 BOOL    sender_set_untrusted   = FALSE;
 999 uschar *sender_unqualified_hosts = NULL;
1000 uschar *sender_verify_failure = NULL;
1001 address_item *sender_verified_list  = NULL;
1002 address_item *sender_verified_failed = NULL;
1003 int     sender_verified_rc     = -1;
1004 BOOL    sender_verified_responded = FALSE;
1005 volatile  BOOL sigalrm_seen    = FALSE;
1006 uschar **sighup_argv           = NULL;
1007 int     smtp_accept_count      = 0;
1008 BOOL    smtp_accept_keepalive  = TRUE;
1009 int     smtp_accept_max        = 20;
1010 int     smtp_accept_max_nonmail= 10;
1011 uschar *smtp_accept_max_nonmail_hosts = US"*";
1012 int     smtp_accept_max_per_connection = 1000;
1013 uschar *smtp_accept_max_per_host = NULL;
1014 int     smtp_accept_queue      = 0;
1015 int     smtp_accept_queue_per_connection = 10;
1016 int     smtp_accept_reserve    = 0;
1017 uschar *smtp_active_hostname   = NULL;
1018 BOOL    smtp_authenticated     = FALSE;
1019 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1020                              "Exim $version_number $tod_full"
1021                              "\0<---------------Space to patch smtp_banner->";
1022 BOOL    smtp_batched_input     = FALSE;
1023 BOOL    smtp_check_spool_space = TRUE;
1024 uschar *smtp_cmd_argument      = NULL;
1025 uschar *smtp_cmd_buffer        = NULL;
1026 int     smtp_connect_backlog   = 20;
1027 double  smtp_delay_mail        = 0.0;
1028 double  smtp_delay_rcpt        = 0.0;
1029 BOOL    smtp_enforce_sync      = TRUE;
1030 FILE   *smtp_in                = NULL;
1031 BOOL    smtp_input             = FALSE;
1032 int     smtp_load_reserve      = -1;
1033 int     smtp_mailcmd_count     = 0;
1034 FILE   *smtp_out               = NULL;
1035 uschar *smtp_etrn_command      = NULL;
1036 BOOL    smtp_etrn_serialize    = TRUE;
1037 int     smtp_max_synprot_errors= 3;
1038 int     smtp_max_unknown_commands = 3;
1039 uschar *smtp_ratelimit_hosts   = NULL;
1040 uschar *smtp_ratelimit_mail    = NULL;
1041 uschar *smtp_ratelimit_rcpt    = NULL;
1042 uschar *smtp_read_error        = US"";
1043 int     smtp_receive_timeout   = 5*60;
1044 uschar *smtp_reserve_hosts     = NULL;
1045 BOOL    smtp_return_error_details = FALSE;
1046 int     smtp_rlm_base          = 0;
1047 double  smtp_rlm_factor        = 0.0;
1048 int     smtp_rlm_limit         = 0;
1049 int     smtp_rlm_threshold     = INT_MAX;
1050 int     smtp_rlr_base          = 0;
1051 double  smtp_rlr_factor        = 0.0;
1052 int     smtp_rlr_limit         = 0;
1053 int     smtp_rlr_threshold     = INT_MAX;
1054 BOOL    smtp_use_pipelining    = FALSE;
1055 BOOL    smtp_use_size          = FALSE;
1056
1057 #ifdef WITH_CONTENT_SCAN
1058 uschar *spamd_address          = US"127.0.0.1 783";
1059 uschar *spam_bar               = NULL;
1060 uschar *spam_report            = NULL;
1061 uschar *spam_score             = NULL;
1062 uschar *spam_score_int         = NULL;
1063 #endif
1064 #ifdef EXPERIMENTAL_SPF
1065 uschar *spf_header_comment     = NULL;
1066 uschar *spf_received           = NULL;
1067 uschar *spf_result             = NULL;
1068 uschar *spf_smtp_comment       = NULL;
1069 #endif
1070
1071 BOOL    split_spool_directory  = FALSE;
1072 uschar *spool_directory        = US SPOOL_DIRECTORY
1073                            "\0<--------------Space to patch spool_directory->";
1074 #ifdef EXPERIMENTAL_SRS
1075 uschar *srs_config             = NULL;
1076 uschar *srs_db_address         = NULL;
1077 uschar *srs_db_key             = NULL;
1078 int     srs_hashlength         = 6;
1079 int     srs_hashmin            = -1;
1080 int     srs_maxage             = 31;
1081 uschar *srs_orig_recipient     = NULL;
1082 uschar *srs_orig_sender        = NULL;
1083 uschar *srs_recipient          = NULL;
1084 uschar *srs_secrets            = NULL;
1085 uschar *srs_status             = NULL;
1086 BOOL    srs_usehash            = TRUE;
1087 BOOL    srs_usetimestamp       = TRUE;
1088 #endif
1089 int     string_datestamp_offset= -1;
1090 BOOL    strip_excess_angle_brackets = FALSE;
1091 BOOL    strip_trailing_dot     = FALSE;
1092 uschar *submission_domain      = NULL;
1093 BOOL    submission_mode        = FALSE;
1094 uschar *submission_name        = NULL;
1095 BOOL    suppress_local_fixups  = FALSE;
1096 BOOL    synchronous_delivery   = FALSE;
1097 BOOL    syslog_duplication     = TRUE;
1098 int     syslog_facility        = LOG_MAIL;
1099 uschar *syslog_processname     = US"exim";
1100 BOOL    syslog_timestamp       = TRUE;
1101 uschar *system_filter          = NULL;
1102
1103 uschar *system_filter_directory_transport = NULL;
1104 uschar *system_filter_file_transport = NULL;
1105 uschar *system_filter_pipe_transport = NULL;
1106 uschar *system_filter_reply_transport = NULL;
1107
1108 gid_t   system_filter_gid      = 0;
1109 BOOL    system_filter_gid_set  = FALSE;
1110 uid_t   system_filter_uid      = 0;
1111 BOOL    system_filter_uid_set  = FALSE;
1112 BOOL    system_filtering       = FALSE;
1113
1114 BOOL    tcp_nodelay            = TRUE;
1115 int     thismessage_size_limit = 0;
1116 int     timeout_frozen_after   = 0;
1117 BOOL    timestamps_utc         = FALSE;
1118
1119 transport_instance  *transports = NULL;
1120
1121 transport_instance  transport_defaults = {
1122     NULL,                     /* chain pointer */
1123     NULL,                     /* name */
1124     NULL,                     /* info */
1125     NULL,                     /* private options block pointer */
1126     NULL,                     /* driver name */
1127     NULL,                     /* setup entry point */
1128     1,                        /* batch_max */
1129     NULL,                     /* batch_id */
1130     NULL,                     /* home_dir */
1131     NULL,                     /* current_dir */
1132     TRUE,                     /* multi-domain */
1133     FALSE,                    /* overrides_hosts */
1134     100,                      /* max_addresses */
1135     500,                      /* connection_max_messages */
1136     FALSE,                    /* deliver_as_creator */
1137     FALSE,                    /* disable_logging */
1138     FALSE,                    /* initgroups */
1139     FALSE,                    /* uid_set */
1140     FALSE,                    /* gid_set */
1141     (uid_t)(-1),              /* uid */
1142     (gid_t)(-1),              /* gid */
1143     NULL,                     /* expand_uid */
1144     NULL,                     /* expand_gid */
1145     NULL,                     /* warn_message */
1146     NULL,                     /* shadow */
1147     NULL,                     /* shadow_condition */
1148     NULL,                     /* filter_command */
1149     NULL,                     /* add_headers */
1150     NULL,                     /* remove_headers */
1151     NULL,                     /* return_path */
1152     NULL,                     /* debug_string */
1153     NULL,                     /* message_size_limit */
1154     NULL,                     /* headers_rewrite */
1155     NULL,                     /* rewrite_rules */
1156     0,                        /* rewrite_existflags */
1157     300,                      /* filter_timeout */
1158     FALSE,                    /* body_only */
1159     FALSE,                    /* delivery_date_add */
1160     FALSE,                    /* envelope_to_add */
1161     FALSE,                    /* headers_only */
1162     FALSE,                    /* rcpt_include_affixes */
1163     FALSE,                    /* return_path_add */
1164     FALSE,                    /* return_output */
1165     FALSE,                    /* return_fail_output */
1166     FALSE,                    /* log_output */
1167     FALSE,                    /* log_fail_output */
1168     FALSE,                    /* log_defer_output */
1169     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1170                                  1 nor 0 so can detect unset */
1171 };
1172
1173 int     transport_count;
1174 uschar **transport_filter_argv  = NULL;
1175 int     transport_filter_timeout;
1176 BOOL    transport_filter_timed_out = FALSE;
1177 int     transport_write_timeout= 0;
1178
1179 tree_node  *tree_dns_fails     = NULL;
1180 tree_node  *tree_duplicates    = NULL;
1181 tree_node  *tree_nonrecipients = NULL;
1182 tree_node  *tree_unusable      = NULL;
1183
1184 BOOL    trusted_caller         = FALSE;
1185 gid_t  *trusted_groups         = NULL;
1186 uid_t  *trusted_users          = NULL;
1187 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1188
1189 uschar *unknown_login          = NULL;
1190 uschar *unknown_username       = NULL;
1191 uschar *untrusted_set_sender   = NULL;
1192
1193 /*  A regex for matching a "From_" line in an incoming message, in the form
1194
1195     From ph10 Fri Jan  5 12:35 GMT 1996
1196
1197 which  the "mail" commands send to the MTA (undocumented, of course), or in
1198 the  form
1199
1200     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1201
1202 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1203 Because  of variations in time formats, just match up to the minutes. That
1204 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1205 so  just require one digit for hours and minutes. The weekday is also absent
1206 in  some forms. */
1207
1208 uschar *uucp_from_pattern      = US
1209    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1210    "(?:"                                          /* Non-extracting bracket */
1211    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1212    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1213    ")"                                            /* End alternation */
1214    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1215
1216 uschar *uucp_from_sender       = US"$1";
1217
1218 uschar *warn_message_file      = NULL;
1219 uschar *warnmsg_delay          = NULL;
1220 uschar *warnmsg_recipients     = NULL;
1221 BOOL    write_rejectlog        = TRUE;
1222
1223 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1224 uschar *version_date           = US"?";
1225 uschar *version_cnumber        = US"????";
1226 uschar *version_string         = US"?";
1227
1228 int     warning_count          = 0;
1229
1230 /*  End of globals.c */