src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.37 2005/09/12 13:39:31 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 uschar *base62_chars=
 337     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 338 uschar *bi_command             = NULL;
 339 uschar *big_buffer             = NULL;
 340 int     big_buffer_size        = BIG_BUFFER_SIZE;
 341 #ifdef EXPERIMENTAL_BRIGHTMAIL
 342 uschar *bmi_alt_location       = NULL;
 343 uschar *bmi_base64_tracker_verdict = NULL;
 344 uschar *bmi_base64_verdict     = NULL;
 345 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 346 int     bmi_deliver            = 1;
 347 int     bmi_run                = 0;
 348 uschar *bmi_verdicts           = NULL;
 349 #endif
 350 int     body_linecount         = 0;
 351 int     body_zerocount         = 0;
 352 uschar *bounce_message_file    = NULL;
 353 uschar *bounce_message_text    = NULL;
 354 uschar *bounce_recipient       = NULL;
 355 BOOL    bounce_return_body     = TRUE;
 356 BOOL    bounce_return_message  = TRUE;
 357 int     bounce_return_size_limit = 100*1024;
 358 uschar *bounce_sender_authentication = NULL;
 359 int     bsmtp_transaction_linecount = 0;
 360
 361 int     callout_cache_domain_positive_expire = 7*24*60*60;
 362 int     callout_cache_domain_negative_expire = 3*60*60;
 363 int     callout_cache_positive_expire = 24*60*60;
 364 int     callout_cache_negative_expire = 2*60*60;
 365 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 366 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 367 int     check_log_inodes       = 0;
 368 int     check_log_space        = 0;
 369 int     check_spool_inodes     = 0;
 370 int     check_spool_space      = 0;
 371 int     clmacro_count          = 0;
 372 uschar *clmacros[MAX_CLMACROS];
 373 BOOL    config_changed         = FALSE;
 374 FILE   *config_file            = NULL;
 375 uschar *config_filename        = NULL;
 376 int     config_lineno          = 0;
 377 #ifdef CONFIGURE_GROUP
 378 gid_t   config_gid             = CONFIGURE_GROUP;
 379 #endif
 380 uschar *config_main_filelist   = US CONFIGURE_FILE
 381                          "\0<-----------Space to patch configure_filename->";
 382 uschar *config_main_filename   = NULL;
 383
 384 #ifdef CONFIGURE_OWNER
 385 uid_t   config_uid             = CONFIGURE_OWNER;
 386 #endif
 387
 388 int     connection_max_messages= -1;
 389 uschar *continue_hostname      = NULL;
 390 uschar *continue_host_address  = NULL;
 391 BOOL    continue_more          = FALSE;
 392 int     continue_sequence      = 1;
 393 uschar *continue_transport     = NULL;
 394
 395 uschar *csa_status             = NULL;
 396
 397 BOOL    daemon_listen          = FALSE;
 398 uschar *daemon_smtp_port       = US"smtp";
 399 int     daemon_startup_retries = 9;
 400 int     daemon_startup_sleep   = 30;
 401 BOOL    debug_daemon           = FALSE;
 402 int     debug_fd               = -1;
 403 FILE   *debug_file             = NULL;
 404 bit_table debug_options[]      = {
 405   { US"acl",            D_acl },
 406   { US"all",            D_all },
 407   { US"auth",           D_auth },
 408   { US"deliver",        D_deliver },
 409   { US"dns",            D_dns },
 410   { US"dnsbl",          D_dnsbl },
 411   { US"exec",           D_exec },
 412   { US"expand",         D_expand },
 413   { US"filter",         D_filter },
 414   { US"hints_lookup",   D_hints_lookup },
 415   { US"host_lookup",    D_host_lookup },
 416   { US"ident",          D_ident },
 417   { US"interface",      D_interface },
 418   { US"lists",          D_lists },
 419   { US"load",           D_load },
 420   { US"local_scan",     D_local_scan },
 421   { US"lookup",         D_lookup },
 422   { US"memory",         D_memory },
 423   { US"pid",            D_pid },
 424   { US"process_info",   D_process_info },
 425   { US"queue_run",      D_queue_run },
 426   { US"receive",        D_receive },
 427   { US"resolver",       D_resolver },
 428   { US"retry",          D_retry },
 429   { US"rewrite",        D_rewrite },
 430   { US"route",          D_route },
 431   { US"timestamp",      D_timestamp },
 432   { US"tls",            D_tls },
 433   { US"transport",      D_transport },
 434   { US"uid",            D_uid },
 435   { US"verify",         D_verify }
 436 };
 437 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 438 unsigned int debug_selector    = 0;
 439 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 440 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 441 BOOL    delivery_date_remove   = TRUE;
 442 uschar *deliver_address_data   = NULL;
 443 int     deliver_datafile       = -1;
 444 uschar *deliver_domain         = NULL;
 445 uschar *deliver_domain_data    = NULL;
 446 uschar *deliver_domain_orig    = NULL;
 447 uschar *deliver_domain_parent  = NULL;
 448 BOOL    deliver_drop_privilege = FALSE;
 449 BOOL    deliver_firsttime      = FALSE;
 450 BOOL    deliver_force          = FALSE;
 451 BOOL    deliver_freeze         = FALSE;
 452 int     deliver_frozen_at      = 0;
 453 uschar *deliver_home           = NULL;
 454 uschar *deliver_host           = NULL;
 455 uschar *deliver_host_address   = NULL;
 456 uschar *deliver_in_buffer      = NULL;
 457 ino_t   deliver_inode          = 0;
 458 uschar *deliver_localpart      = NULL;
 459 uschar *deliver_localpart_data = NULL;
 460 uschar *deliver_localpart_orig = NULL;
 461 uschar *deliver_localpart_parent = NULL;
 462 uschar *deliver_localpart_prefix = NULL;
 463 uschar *deliver_localpart_suffix = NULL;
 464 BOOL    deliver_force_thaw     = FALSE;
 465 BOOL    deliver_manual_thaw    = FALSE;
 466 uschar *deliver_out_buffer     = NULL;
 467 int     deliver_queue_load_max = -1;
 468 address_item  *deliver_recipients = NULL;
 469 uschar *deliver_selectstring   = NULL;
 470 BOOL    deliver_selectstring_regex = FALSE;
 471 uschar *deliver_selectstring_sender = NULL;
 472 BOOL    deliver_selectstring_sender_regex = FALSE;
 473 #ifdef WITH_OLD_DEMIME
 474 int     demime_errorlevel      = 0;
 475 int     demime_ok              = 0;
 476 uschar *demime_reason          = NULL;
 477 #endif
 478 BOOL    disable_logging        = FALSE;
 479
 480 #ifdef EXPERIMENTAL_DOMAINKEYS
 481 uschar *dk_signing_domain      = NULL;
 482 uschar *dk_signing_selector    = NULL;
 483 int     dk_do_verify           = 0;
 484 #endif
 485
 486 uschar *dns_again_means_nonexist = NULL;
 487 int     dns_csa_search_limit   = 5;
 488 BOOL    dns_csa_use_reverse    = TRUE;
 489 uschar *dns_ipv4_lookup        = NULL;
 490 int     dns_retrans            = 0;
 491 int     dns_retry              = 0;
 492 uschar *dnslist_domain         = NULL;
 493 uschar *dnslist_text           = NULL;
 494 uschar *dnslist_value          = NULL;
 495 tree_node *domainlist_anchor   = NULL;
 496 int     domainlist_count       = 0;
 497 BOOL    dont_deliver           = FALSE;
 498 BOOL    dot_ends               = TRUE;
 499 BOOL    drop_cr                = FALSE;         /* No longer used */
 500
 501 BOOL    enable_dollar_recipients = FALSE;
 502 BOOL    envelope_to_remove     = TRUE;
 503 int     errno_quota            = ERRNO_QUOTA;
 504 uschar *errors_copy            = NULL;
 505 int     error_handling         = ERRORS_SENDER;
 506 uschar *errors_reply_to        = NULL;
 507 int     errors_sender_rc       = EXIT_FAILURE;
 508
 509 gid_t   exim_gid               = EXIM_GID;
 510 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 511 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 512                         "\0<---------------Space to patch exim_path->";
 513 uid_t   exim_uid               = EXIM_UID;
 514 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 515 int     expand_forbid          = 0;
 516 int     expand_nlength[EXPAND_MAXN+1];
 517 int     expand_nmax            = -1;
 518 uschar *expand_nstring[EXPAND_MAXN+1];
 519 BOOL    expand_string_forcedfail = FALSE;
 520 uschar *expand_string_message;
 521 BOOL    extract_addresses_remove_arguments = TRUE;
 522 uschar *extra_local_interfaces = NULL;
 523
 524 int     fake_response          = OK;
 525 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).";
 526 int     filter_n[FILTER_VARIABLE_COUNT];
 527 BOOL    filter_running         = FALSE;
 528 int     filter_sn[FILTER_VARIABLE_COUNT];
 529 int     filter_test            = FTEST_NONE;
 530 uschar *filter_test_sfile      = NULL;
 531 uschar *filter_test_ufile      = NULL;
 532 uschar *filter_thisaddress     = NULL;
 533 int     finduser_retries       = 0;
 534 #ifdef WITH_OLD_DEMIME
 535 uschar *found_extension        = NULL;
 536 #endif
 537 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 538 uschar *freeze_tell            = NULL;
 539 uschar *fudged_queue_times     = US"";
 540
 541 uschar *gecos_name             = NULL;
 542 uschar *gecos_pattern          = NULL;
 543 rewrite_rule  *global_rewrite_rules = NULL;
 544
 545 uschar *headers_charset        = US HEADERS_CHARSET;
 546 int     header_insert_maxlen   = 64 * 1024;
 547 header_line  *header_last      = NULL;
 548 header_line  *header_list      = NULL;
 549 int     header_maxsize         = HEADER_MAXSIZE;
 550 int     header_line_maxsize    = 0;
 551
 552 header_name header_names[] = {
 553   { US"bcc",            3, TRUE,  htype_bcc },
 554   { US"cc",             2, TRUE,  htype_cc },
 555   { US"date",           4, TRUE,  htype_date },
 556   { US"delivery-date", 13, FALSE, htype_delivery_date },
 557   { US"envelope-to",   11, FALSE, htype_envelope_to },
 558   { US"from",           4, TRUE,  htype_from },
 559   { US"message-id",    10, TRUE,  htype_id },
 560   { US"received",       8, FALSE, htype_received },
 561   { US"reply-to",       8, FALSE, htype_reply_to },
 562   { US"return-path",   11, FALSE, htype_return_path },
 563   { US"sender",         6, TRUE,  htype_sender },
 564   { US"subject",        7, FALSE, htype_subject },
 565   { US"to",             2, TRUE,  htype_to }
 566 };
 567
 568 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 569
 570 BOOL    header_rewritten       = FALSE;
 571 uschar *helo_accept_junk_hosts = NULL;
 572 uschar *helo_allow_chars       = US"";
 573 uschar *helo_lookup_domains    = US"@ : @[]";
 574 uschar *helo_try_verify_hosts  = NULL;
 575 BOOL    helo_verified          = FALSE;
 576 BOOL    helo_verify_failed     = FALSE;
 577 uschar *helo_verify_hosts      = NULL;
 578 uschar *hex_digits             = US"0123456789abcdef";
 579 uschar *hold_domains           = NULL;
 580 BOOL    host_checking          = FALSE;
 581 BOOL    host_checking_callout  = FALSE;
 582 uschar *host_data              = NULL;
 583 BOOL    host_find_failed_syntax= FALSE;
 584 uschar *host_lookup            = NULL;
 585 BOOL    host_lookup_deferred   = FALSE;
 586 BOOL    host_lookup_failed     = FALSE;
 587 uschar *host_lookup_order      = US"bydns:byaddr";
 588 uschar *host_lookup_msg        = US"";
 589 int     host_number            = 0;
 590 uschar *host_number_string     = NULL;
 591 uschar *host_reject_connection = NULL;
 592 tree_node *hostlist_anchor     = NULL;
 593 int     hostlist_count         = 0;
 594 uschar *hosts_treat_as_local   = NULL;
 595 uschar *hosts_connection_nolog = NULL;
 596
 597 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 598 BOOL    ignore_fromline_local  = FALSE;
 599 uschar *ignore_fromline_hosts  = NULL;
 600 uschar *interface_address      = NULL;
 601 int     interface_port         = -1;
 602 BOOL    is_inetd               = FALSE;
 603
 604 int     journal_fd             = -1;
 605
 606 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 607
 608 uschar *eldap_dn               = NULL;
 609 int     load_average           = -2;
 610 BOOL    local_error_message    = FALSE;
 611 BOOL    local_from_check       = TRUE;
 612 uschar *local_from_prefix      = NULL;
 613 uschar *local_from_suffix      = NULL;
 614
 615 #if HAVE_IPV6
 616 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 617 #else
 618 uschar *local_interfaces       = US"0.0.0.0";
 619 #endif
 620
 621 uschar *local_scan_data        = NULL;
 622 int     local_scan_timeout     = 5*60;
 623 BOOL    local_sender_retain    = FALSE;
 624 gid_t   local_user_gid         = (gid_t)(-1);
 625 uid_t   local_user_uid         = (uid_t)(-1);
 626
 627 tree_node *localpartlist_anchor= NULL;
 628 int     localpartlist_count    = 0;
 629 uschar *log_buffer             = NULL;
 630 unsigned int log_extra_selector = LX_default;
 631 uschar *log_file_path          = US LOG_FILE_PATH
 632                            "\0<--------------Space to patch log_file_path->";
 633
 634 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 635 are the ones that get put into log_write_selector. They can be used in calls to
 636 log_write() to test for the bit. The options with LX_xxx identifiers have
 637 values greater than 0x80000000 and are put int log_extra_selector (without the
 638 top bit). They are never used in calls to log_write(), but are tested
 639 independently. This separation became necessary when the number of log
 640 selectors was getting close to filling a 32-bit word. */
 641
 642 bit_table log_options[]        = {
 643   { US"address_rewrite",              L_address_rewrite },
 644   { US"all",                          L_all },
 645   { US"all_parents",                  L_all_parents },
 646   { US"arguments",                    LX_arguments },
 647   { US"connection_reject",            L_connection_reject },
 648   { US"delay_delivery",               L_delay_delivery },
 649   { US"deliver_time",                 LX_deliver_time },
 650   { US"delivery_size",                LX_delivery_size },
 651   { US"dnslist_defer",                L_dnslist_defer },
 652   { US"etrn",                         L_etrn },
 653   { US"host_lookup_failed",           L_host_lookup_failed },
 654   { US"ident_timeout",                LX_ident_timeout },
 655   { US"incoming_interface",           LX_incoming_interface },
 656   { US"incoming_port",                LX_incoming_port },
 657   { US"lost_incoming_connection",     L_lost_incoming_connection },
 658   { US"outgoing_port",                LX_outgoing_port },
 659   { US"queue_run",                    L_queue_run },
 660   { US"queue_time",                   LX_queue_time },
 661   { US"queue_time_overall",           LX_queue_time_overall },
 662   { US"received_recipients",          LX_received_recipients },
 663   { US"received_sender",              LX_received_sender },
 664   { US"rejected_header",              LX_rejected_header },
 665   { US"rejected_headers",             LX_rejected_header },
 666   { US"retry_defer",                  L_retry_defer },
 667   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 668   { US"sender_on_delivery",           LX_sender_on_delivery },
 669   { US"size_reject",                  L_size_reject },
 670   { US"skip_delivery",                L_skip_delivery },
 671   { US"smtp_confirmation",            LX_smtp_confirmation },
 672   { US"smtp_connection",              L_smtp_connection },
 673   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 674   { US"smtp_protocol_error",          L_smtp_protocol_error },
 675   { US"smtp_syntax_error",            L_smtp_syntax_error },
 676   { US"subject",                      LX_subject },
 677   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 678   { US"tls_cipher",                   LX_tls_cipher },
 679   { US"tls_peerdn",                   LX_tls_peerdn },
 680   { US"unknown_in_list",              LX_unknown_in_list }
 681 };
 682
 683 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 684 unsigned int log_write_selector= L_default;
 685 uschar *log_selector_string    = NULL;
 686 FILE   *log_stderr             = NULL;
 687 BOOL    log_testing_mode       = FALSE;
 688 BOOL    log_timezone           = FALSE;
 689 uschar *login_sender_address   = NULL;
 690 int     lookup_open_max        = 25;
 691 uschar *lookup_value           = NULL;
 692
 693 macro_item  *macros            = NULL;
 694 uschar *mailstore_basename     = NULL;
 695 #ifdef WITH_CONTENT_SCAN
 696 uschar *malware_name           = NULL;  /* Virus Name */
 697 #endif
 698 int     max_username_length    = 0;
 699 int     message_age            = 0;
 700 uschar *message_body           = NULL;
 701 uschar *message_body_end       = NULL;
 702 int     message_body_size      = 0;
 703 int     message_body_visible   = 500;
 704 int     message_ended          = END_NOTSTARTED;
 705 uschar *message_headers        = NULL;
 706 uschar *message_id;
 707 uschar *message_id_domain      = NULL;
 708 uschar *message_id_text        = NULL;
 709 struct timeval message_id_tv   = { 0, 0 };
 710 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 711 uschar *message_id_external;
 712 int     message_linecount      = 0;
 713 BOOL    message_logs           = TRUE;
 714 int     message_size           = 0;
 715 uschar *message_size_limit     = US"50M";
 716 uschar  message_subdir[2]      = { 0, 0 };
 717 uschar *message_reference      = NULL;
 718
 719 /* MIME ACL expandables */
 720 #ifdef WITH_CONTENT_SCAN
 721 int     mime_anomaly_level     = 0;
 722 uschar *mime_anomaly_text      = NULL;
 723 uschar *mime_boundary          = NULL;
 724 uschar *mime_charset           = NULL;
 725 uschar *mime_content_description = NULL;
 726 uschar *mime_content_disposition = NULL;
 727 uschar *mime_content_id        = NULL;
 728 unsigned int mime_content_size = 0;
 729 uschar *mime_content_transfer_encoding = NULL;
 730 uschar *mime_content_type      = NULL;
 731 uschar *mime_decoded_filename  = NULL;
 732 uschar *mime_filename          = NULL;
 733 int     mime_is_multipart      = 0;
 734 int     mime_is_coverletter    = 0;
 735 int     mime_is_rfc822         = 0;
 736 int     mime_part_count        = -1;
 737 #endif
 738
 739 BOOL    mua_wrapper            = FALSE;
 740
 741 uid_t  *never_users            = NULL;
 742 #ifdef WITH_CONTENT_SCAN
 743 BOOL    no_mbox_unspool        = FALSE;
 744 #endif
 745 BOOL    no_multiline_responses = FALSE;
 746
 747 uid_t   original_euid;
 748 gid_t   originator_gid;
 749 uschar *originator_login       = NULL;
 750 uschar *originator_name        = NULL;
 751 uid_t   originator_uid;
 752 uschar *override_local_interfaces = NULL;
 753 uschar *override_pid_file_path = NULL;
 754
 755 BOOL    parse_allow_group      = FALSE;
 756 BOOL    parse_found_group      = FALSE;
 757 uschar *percent_hack_domains   = NULL;
 758 uschar *pid_file_path          = US PID_FILE_PATH
 759                            "\0<--------------Space to patch pid_file_path->";
 760 uschar *pipelining_advertise_hosts = US"*";
 761 BOOL    preserve_message_logs  = FALSE;
 762 uschar *primary_hostname       = NULL;
 763 BOOL    print_topbitchars      = FALSE;
 764 uschar  process_info[PROCESS_INFO_SIZE];
 765 uschar *process_log_path       = NULL;
 766 BOOL    prod_requires_admin    = TRUE;
 767 uschar *prvscheck_address      = NULL;
 768 uschar *prvscheck_keynum       = NULL;
 769 uschar *prvscheck_result       = NULL;
 770
 771
 772 uschar *qualify_domain_recipient = NULL;
 773 uschar *qualify_domain_sender  = NULL;
 774 BOOL    queue_2stage           = FALSE;
 775 uschar *queue_domains          = NULL;
 776 int     queue_interval         = -1;
 777 BOOL    queue_list_requires_admin = TRUE;
 778 BOOL    queue_only             = FALSE;
 779 uschar *queue_only_file        = NULL;
 780 int     queue_only_load        = -1;
 781 BOOL    queue_only_override    = TRUE;
 782 BOOL    queue_only_policy      = FALSE;
 783 BOOL    queue_run_first_delivery = FALSE;
 784 BOOL    queue_run_force        = FALSE;
 785 BOOL    queue_run_in_order     = FALSE;
 786 BOOL    queue_run_local        = FALSE;
 787 int     queue_run_max          = 5;
 788 pid_t   queue_run_pid          = (pid_t)0;
 789 int     queue_run_pipe         = -1;
 790 BOOL    queue_running          = FALSE;
 791 BOOL    queue_smtp             = FALSE;
 792 uschar *queue_smtp_domains     = NULL;
 793
 794 unsigned int random_seed       = 0;
 795 tree_node *ratelimiters_cmd    = NULL;
 796 tree_node *ratelimiters_conn   = NULL;
 797 tree_node *ratelimiters_mail   = NULL;
 798 uschar *raw_active_hostname    = NULL;
 799 uschar *raw_sender             = NULL;
 800 uschar **raw_recipients        = NULL;
 801 int     raw_recipients_count   = 0;
 802
 803 int     rcpt_count             = 0;
 804 int     rcpt_fail_count        = 0;
 805 int     rcpt_defer_count       = 0;
 806 gid_t   real_gid;
 807 uid_t   real_uid;
 808 BOOL    really_exim            = TRUE;
 809 BOOL    receive_call_bombout   = FALSE;
 810 int     receive_linecount      = 0;
 811 int     receive_messagecount   = 0;
 812 int     receive_timeout        = 0;
 813 int     received_count         = 0;
 814 uschar *received_for           = NULL;
 815
 816 /*  This is the default text for Received headers generated by Exim. The
 817 date  will be automatically added on the end. */
 818
 819 uschar *received_header_text   = US
 820      "Received: "
 821      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 822      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 823      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 824      "by $primary_hostname "
 825      "${if def:received_protocol {with $received_protocol}} "
 826      #ifdef SUPPORT_TLS
 827      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 828      #endif
 829      "(Exim $version_number)\n\t"
 830      "id $message_exim_id"
 831      "${if def:received_for {\n\tfor $received_for}}"
 832      "\0<---------------Space to patch received_header_text->";
 833
 834 int     received_headers_max   = 30;
 835 uschar *received_protocol      = NULL;
 836 int     received_time          = 0;
 837 uschar *recipient_data         = NULL;
 838 uschar *recipient_unqualified_hosts = NULL;
 839 uschar *recipient_verify_failure = NULL;
 840 int     recipients_count       = 0;
 841 BOOL    recipients_discarded   = FALSE;
 842 recipient_item  *recipients_list = NULL;
 843 int     recipients_list_max    = 0;
 844 int     recipients_max         = 0;
 845 BOOL    recipients_max_reject  = FALSE;
 846 const pcre *regex_AUTH         = NULL;
 847 const pcre *regex_check_dns_names = NULL;
 848 const pcre *regex_From         = NULL;
 849 const pcre *regex_IGNOREQUOTA  = NULL;
 850 const pcre *regex_PIPELINING   = NULL;
 851 const pcre *regex_SIZE         = NULL;
 852 const pcre *regex_ismsgid      = NULL;
 853 #ifdef WITH_CONTENT_SCAN
 854 uschar *regex_match_string     = NULL;
 855 #endif
 856 int     remote_delivery_count  = 0;
 857 int     remote_max_parallel    = 2;
 858 uschar *remote_sort_domains    = NULL;
 859 int     retry_data_expire      = 7*24*60*60;
 860 int     retry_interval_max     = 24*60*60;
 861 int     retry_maximum_timeout  = 0;        /* set from retry config */
 862 retry_config  *retries         = NULL;
 863 uschar *return_path            = NULL;
 864 BOOL    return_path_remove     = TRUE;
 865 int     rewrite_existflags     = 0;
 866 uschar *rfc1413_hosts          = US"*";
 867 int     rfc1413_query_timeout  = 30;
 868 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 869 uid_t   root_uid               = ROOT_UID;
 870
 871 router_instance  *routers  = NULL;
 872 router_instance  router_defaults = {
 873     NULL,                      /* chain pointer */
 874     NULL,                      /* name */
 875     NULL,                      /* info */
 876     NULL,                      /* private options block pointer */
 877     NULL,                      /* driver name */
 878
 879     NULL,                      /* address_data */
 880 #ifdef EXPERIMENTAL_BRIGHTMAIL
 881     NULL,                      /* bmi_rule */
 882 #endif
 883     NULL,                      /* cannot_route_message */
 884     NULL,                      /* condition */
 885     NULL,                      /* current_directory */
 886     NULL,                      /* debug_string */
 887     NULL,                      /* domains */
 888     NULL,                      /* errors_to */
 889     NULL,                      /* expand_gid */
 890     NULL,                      /* expand_uid */
 891     NULL,                      /* expand_more */
 892     NULL,                      /* expand_unseen */
 893     NULL,                      /* extra_headers */
 894     NULL,                      /* fallback_hosts */
 895     NULL,                      /* home_directory */
 896     NULL,                      /* ignore_target_hosts */
 897     NULL,                      /* local_parts */
 898     NULL,                      /* pass_router_name */
 899     NULL,                      /* prefix */
 900     NULL,                      /* redirect_router_name */
 901     NULL,                      /* remove_headers */
 902     NULL,                      /* require_files */
 903     NULL,                      /* router_home_directory */
 904     US"freeze",                /* self */
 905     NULL,                      /* senders */
 906     NULL,                      /* suffix */
 907     NULL,                      /* translate_ip_address */
 908     NULL,                      /* transport_name */
 909
 910     TRUE,                      /* address_test */
 911 #ifdef EXPERIMENTAL_BRIGHTMAIL
 912     FALSE,                     /* bmi_deliver_alternate */
 913     FALSE,                     /* bmi_deliver_default */
 914     FALSE,                     /* bmi_dont_deliver */
 915 #endif
 916     TRUE,                      /* expn */
 917     FALSE,                     /* caseful_local_part */
 918     FALSE,                     /* check_local_user */
 919     FALSE,                     /* disable_logging */
 920     FALSE,                     /* fail_verify_recipient */
 921     FALSE,                     /* fail_verify_sender */
 922     FALSE,                     /* gid_set */
 923     FALSE,                     /* initgroups */
 924     TRUE_UNSET,                /* log_as_local */
 925     TRUE,                      /* more */
 926     FALSE,                     /* pass_on_timeout */
 927     FALSE,                     /* prefix_optional */
 928     TRUE,                      /* repeat_use */
 929     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 930     FALSE,                     /* same_domain_copy_routing */
 931     FALSE,                     /* self_rewrite */
 932     FALSE,                     /* suffix_optional */
 933     FALSE,                     /* verify_only */
 934     TRUE,                      /* verify_recipient */
 935     TRUE,                      /* verify_sender */
 936     FALSE,                     /* uid_set */
 937     FALSE,                     /* unseen */
 938
 939     self_freeze,               /* self_code */
 940     (uid_t)(-1),               /* uid */
 941     (gid_t)(-1),               /* gid */
 942
 943     NULL,                      /* fallback_hostlist */
 944     NULL,                      /* transport instance */
 945     NULL,                      /* pass_router */
 946     NULL                       /* redirect_router */
 947 };
 948
 949 ip_address_item *running_interfaces = NULL;
 950 BOOL    running_in_test_harness = FALSE;
 951
 952 /* This is a weird one. The following string gets patched in the binary by the
 953 script that sets up a copy of Exim for running in the test harness. It seems
 954 that compilers are now clever, and share constant strings if they can.
 955 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 956 make use of the end of this string in order to save space. So the patching then
 957 wrecks this. We default this optimization by adding some additional characters
 958 onto the end of the string. */
 959
 960 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 961
 962 int     runrc                  = 0;
 963
 964 uschar *search_error_message   = NULL;
 965 BOOL    search_find_defer      = FALSE;
 966 uschar *self_hostname          = NULL;
 967 uschar *sender_address         = NULL;
 968 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 969 uschar *sender_address_data    = NULL;
 970 BOOL    sender_address_forced  = FALSE;
 971 uschar *sender_address_unrewritten = NULL;
 972 uschar *sender_data            = NULL;
 973 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 974 uschar *sender_fullhost        = NULL;
 975 uschar *sender_helo_name       = NULL;
 976 uschar **sender_host_aliases   = &no_aliases;
 977 uschar *sender_host_address    = NULL;
 978 uschar *sender_host_authenticated = NULL;
 979 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 980 uschar *sender_host_name       = NULL;
 981 int     sender_host_port       = 0;
 982 BOOL    sender_host_notsocket  = FALSE;
 983 BOOL    sender_host_unknown    = FALSE;
 984 uschar *sender_ident           = NULL;
 985 BOOL    sender_local           = FALSE;
 986 BOOL    sender_name_forced     = FALSE;
 987 uschar *sender_rate            = NULL;
 988 uschar *sender_rate_limit      = NULL;
 989 uschar *sender_rate_period     = NULL;
 990 uschar *sender_rcvhost         = NULL;
 991 BOOL    sender_set_untrusted   = FALSE;
 992 uschar *sender_unqualified_hosts = NULL;
 993 uschar *sender_verify_failure = NULL;
 994 address_item *sender_verified_list  = NULL;
 995 address_item *sender_verified_failed = NULL;
 996 int     sender_verified_rc     = -1;
 997 BOOL    sender_verified_responded = FALSE;
 998 volatile  BOOL sigalrm_seen    = FALSE;
 999 uschar **sighup_argv           = NULL;
1000 int     smtp_accept_count      = 0;
1001 BOOL    smtp_accept_keepalive  = TRUE;
1002 int     smtp_accept_max        = 20;
1003 int     smtp_accept_max_nonmail= 10;
1004 uschar *smtp_accept_max_nonmail_hosts = US"*";
1005 int     smtp_accept_max_per_connection = 1000;
1006 uschar *smtp_accept_max_per_host = NULL;
1007 int     smtp_accept_queue      = 0;
1008 int     smtp_accept_queue_per_connection = 10;
1009 int     smtp_accept_reserve    = 0;
1010 uschar *smtp_active_hostname   = NULL;
1011 BOOL    smtp_authenticated     = FALSE;
1012 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1013                              "Exim $version_number $tod_full"
1014                              "\0<---------------Space to patch smtp_banner->";
1015 BOOL    smtp_batched_input     = FALSE;
1016 BOOL    smtp_check_spool_space = TRUE;
1017 uschar *smtp_command_argument  = NULL;
1018 int     smtp_connect_backlog   = 20;
1019 double  smtp_delay_mail        = 0.0;
1020 double  smtp_delay_rcpt        = 0.0;
1021 BOOL    smtp_enforce_sync      = TRUE;
1022 FILE   *smtp_in                = NULL;
1023 BOOL    smtp_input             = FALSE;
1024 int     smtp_load_reserve      = -1;
1025 int     smtp_mailcmd_count     = 0;
1026 FILE   *smtp_out               = NULL;
1027 uschar *smtp_etrn_command      = NULL;
1028 BOOL    smtp_etrn_serialize    = TRUE;
1029 int     smtp_max_synprot_errors= 3;
1030 int     smtp_max_unknown_commands = 3;
1031 uschar *smtp_ratelimit_hosts   = NULL;
1032 uschar *smtp_ratelimit_mail    = NULL;
1033 uschar *smtp_ratelimit_rcpt    = NULL;
1034 uschar *smtp_read_error        = US"";
1035 int     smtp_receive_timeout   = 5*60;
1036 uschar *smtp_reserve_hosts     = NULL;
1037 BOOL    smtp_return_error_details = FALSE;
1038 int     smtp_rlm_base          = 0;
1039 double  smtp_rlm_factor        = 0.0;
1040 int     smtp_rlm_limit         = 0;
1041 int     smtp_rlm_threshold     = INT_MAX;
1042 int     smtp_rlr_base          = 0;
1043 double  smtp_rlr_factor        = 0.0;
1044 int     smtp_rlr_limit         = 0;
1045 int     smtp_rlr_threshold     = INT_MAX;
1046 BOOL    smtp_use_pipelining    = FALSE;
1047 BOOL    smtp_use_size          = FALSE;
1048
1049 #ifdef WITH_CONTENT_SCAN
1050 uschar *spamd_address          = US"127.0.0.1 783";
1051 uschar *spam_bar               = NULL;
1052 uschar *spam_report            = NULL;
1053 uschar *spam_score             = NULL;
1054 uschar *spam_score_int         = NULL;
1055 #endif
1056 #ifdef EXPERIMENTAL_SPF
1057 uschar *spf_header_comment     = NULL;
1058 uschar *spf_received           = NULL;
1059 uschar *spf_result             = NULL;
1060 uschar *spf_smtp_comment       = NULL;
1061 #endif
1062
1063 BOOL    split_spool_directory  = FALSE;
1064 uschar *spool_directory        = US SPOOL_DIRECTORY
1065                            "\0<--------------Space to patch spool_directory->";
1066 #ifdef EXPERIMENTAL_SRS
1067 uschar *srs_config             = NULL;
1068 uschar *srs_db_address         = NULL;
1069 uschar *srs_db_key             = NULL;
1070 int     srs_hashlength         = 6;
1071 int     srs_hashmin            = -1;
1072 int     srs_maxage             = 31;
1073 uschar *srs_orig_recipient     = NULL;
1074 uschar *srs_orig_sender        = NULL;
1075 uschar *srs_recipient          = NULL;
1076 uschar *srs_secrets            = NULL;
1077 uschar *srs_status             = NULL;
1078 BOOL    srs_usehash            = TRUE;
1079 BOOL    srs_usetimestamp       = TRUE;
1080 #endif
1081 int     string_datestamp_offset= -1;
1082 BOOL    strip_excess_angle_brackets = FALSE;
1083 BOOL    strip_trailing_dot     = FALSE;
1084 uschar *submission_domain      = NULL;
1085 BOOL    submission_mode        = FALSE;
1086 uschar *submission_name        = NULL;
1087 BOOL    suppress_local_fixups  = FALSE;
1088 BOOL    synchronous_delivery   = FALSE;
1089 BOOL    syslog_duplication     = TRUE;
1090 int     syslog_facility        = LOG_MAIL;
1091 uschar *syslog_processname     = US"exim";
1092 BOOL    syslog_timestamp       = TRUE;
1093 uschar *system_filter          = NULL;
1094
1095 uschar *system_filter_directory_transport = NULL;
1096 uschar *system_filter_file_transport = NULL;
1097 uschar *system_filter_pipe_transport = NULL;
1098 uschar *system_filter_reply_transport = NULL;
1099
1100 gid_t   system_filter_gid      = 0;
1101 BOOL    system_filter_gid_set  = FALSE;
1102 uid_t   system_filter_uid      = 0;
1103 BOOL    system_filter_uid_set  = FALSE;
1104 BOOL    system_filtering       = FALSE;
1105
1106 BOOL    tcp_nodelay            = TRUE;
1107 int     thismessage_size_limit = 0;
1108 int     timeout_frozen_after   = 0;
1109 BOOL    timestamps_utc         = FALSE;
1110
1111 transport_instance  *transports = NULL;
1112
1113 transport_instance  transport_defaults = {
1114     NULL,                     /* chain pointer */
1115     NULL,                     /* name */
1116     NULL,                     /* info */
1117     NULL,                     /* private options block pointer */
1118     NULL,                     /* driver name */
1119     NULL,                     /* setup entry point */
1120     1,                        /* batch_max */
1121     NULL,                     /* batch_id */
1122     NULL,                     /* home_dir */
1123     NULL,                     /* current_dir */
1124     TRUE,                     /* multi-domain */
1125     FALSE,                    /* overrides_hosts */
1126     100,                      /* max_addresses */
1127     500,                      /* connection_max_messages */
1128     FALSE,                    /* deliver_as_creator */
1129     FALSE,                    /* disable_logging */
1130     FALSE,                    /* initgroups */
1131     FALSE,                    /* uid_set */
1132     FALSE,                    /* gid_set */
1133     (uid_t)(-1),              /* uid */
1134     (gid_t)(-1),              /* gid */
1135     NULL,                     /* expand_uid */
1136     NULL,                     /* expand_gid */
1137     NULL,                     /* warn_message */
1138     NULL,                     /* shadow */
1139     NULL,                     /* shadow_condition */
1140     NULL,                     /* filter_command */
1141     NULL,                     /* add_headers */
1142     NULL,                     /* remove_headers */
1143     NULL,                     /* return_path */
1144     NULL,                     /* debug_string */
1145     NULL,                     /* message_size_limit */
1146     NULL,                     /* headers_rewrite */
1147     NULL,                     /* rewrite_rules */
1148     0,                        /* rewrite_existflags */
1149     300,                      /* filter_timeout */
1150     FALSE,                    /* body_only */
1151     FALSE,                    /* delivery_date_add */
1152     FALSE,                    /* envelope_to_add */
1153     FALSE,                    /* headers_only */
1154     FALSE,                    /* rcpt_include_affixes */
1155     FALSE,                    /* return_path_add */
1156     FALSE,                    /* return_output */
1157     FALSE,                    /* return_fail_output */
1158     FALSE,                    /* log_output */
1159     FALSE,                    /* log_fail_output */
1160     FALSE,                    /* log_defer_output */
1161     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1162                                  1 nor 0 so can detect unset */
1163 };
1164
1165 int     transport_count;
1166 uschar **transport_filter_argv  = NULL;
1167 int     transport_filter_timeout;
1168 BOOL    transport_filter_timed_out = FALSE;
1169 int     transport_write_timeout= 0;
1170
1171 tree_node  *tree_dns_fails     = NULL;
1172 tree_node  *tree_duplicates    = NULL;
1173 tree_node  *tree_nonrecipients = NULL;
1174 tree_node  *tree_unusable      = NULL;
1175
1176 BOOL    trusted_caller         = FALSE;
1177 gid_t  *trusted_groups         = NULL;
1178 uid_t  *trusted_users          = NULL;
1179 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1180
1181 uschar *unknown_login          = NULL;
1182 uschar *unknown_username       = NULL;
1183 uschar *untrusted_set_sender   = NULL;
1184
1185 /*  A regex for matching a "From_" line in an incoming message, in the form
1186
1187     From ph10 Fri Jan  5 12:35 GMT 1996
1188
1189 which  the "mail" commands send to the MTA (undocumented, of course), or in
1190 the  form
1191
1192     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1193
1194 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1195 Because  of variations in time formats, just match up to the minutes. That
1196 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1197 so  just require one digit for hours and minutes. The weekday is also absent
1198 in  some forms. */
1199
1200 uschar *uucp_from_pattern      = US
1201    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1202    "(?:"                                          /* Non-extracting bracket */
1203    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1204    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1205    ")"                                            /* End alternation */
1206    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1207
1208 uschar *uucp_from_sender       = US"$1";
1209
1210 uschar *warn_message_file      = NULL;
1211 uschar *warnmsg_delay          = NULL;
1212 uschar *warnmsg_recipients     = NULL;
1213 BOOL    write_rejectlog        = TRUE;
1214
1215 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1216 uschar *version_date           = US"?";
1217 uschar *version_cnumber        = US"????";
1218 uschar *version_string         = US"?";
1219
1220 int     warning_count          = 0;
1221
1222 /*  End of globals.c */