src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.45 2006/02/07 11:19:00 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2006 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_debug_print", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_debug_string)) },
  43   { "server_mail_auth_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  45   { "server_set_id", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, set_id)) }
  47 };
  48
  49 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  50
  51 /* An empty host aliases list. */
  52
  53 uschar *no_aliases             = NULL;
  54
  55
  56 /* For comments on these variables, see globals.h. I'm too idle to
  57 duplicate them here... */
  58
  59 #ifdef EXIM_PERL
  60 uschar *opt_perl_startup       = NULL;
  61 BOOL    opt_perl_at_start      = FALSE;
  62 BOOL    opt_perl_started       = FALSE;
  63 #endif
  64
  65 #ifdef EXPAND_DLFUNC
  66 tree_node *dlobj_anchor        = NULL;
  67 #endif
  68
  69 #ifdef LOOKUP_IBASE
  70 uschar *ibase_servers          = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_LDAP
  74 uschar *eldap_default_servers  = NULL;
  75 int     eldap_version          = -1;
  76 #endif
  77
  78 #ifdef LOOKUP_MYSQL
  79 uschar *mysql_servers          = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_ORACLE
  83 uschar *oracle_servers         = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_PGSQL
  87 uschar *pgsql_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 BOOL    tls_active             = -1;
 103 BOOL    tls_certificate_verified = FALSE;
 104 uschar *tls_cipher             = NULL;
 105 BOOL    tls_on_connect         = FALSE;
 106 uschar *tls_on_connect_ports   = NULL;
 107 uschar *tls_peerdn             = NULL;
 108
 109 #ifdef SUPPORT_TLS
 110 const pcre *regex_STARTTLS     = NULL;
 111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 112 uschar *tls_certificate        = NULL;
 113 uschar *tls_crl                = NULL;
 114 uschar *tls_dhparam            = NULL;
 115 BOOL    tls_offered            = FALSE;
 116 uschar *tls_privatekey         = NULL;
 117 BOOL    tls_remember_esmtp     = FALSE;
 118 uschar *tls_require_ciphers    = NULL;
 119 uschar *tls_try_verify_hosts   = NULL;
 120 uschar *tls_verify_certificates= NULL;
 121 uschar *tls_verify_hosts       = NULL;
 122 #endif
 123
 124
 125 /* Input-reading functions for messages, so we can use special ones for
 126 incoming TCP/IP. The defaults use stdin. We never need these for any
 127 stand-alone tests. */
 128
 129 #ifndef STAND_ALONE
 130 int (*receive_getc)(void)      = stdin_getc;
 131 int (*receive_ungetc)(int)     = stdin_ungetc;
 132 int (*receive_feof)(void)      = stdin_feof;
 133 int (*receive_ferror)(void)    = stdin_ferror;
 134 #endif
 135
 136
 137 /* List of per-address expansion variables for clearing and saving/restoring
 138 when verifying one address while routing/verifying another. We have to have
 139 the size explicit, because it is referenced from more than one module. */
 140
 141 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 142   &deliver_address_data,
 143   &deliver_domain,
 144   &deliver_domain_data,
 145   &deliver_domain_orig,
 146   &deliver_domain_parent,
 147   &deliver_localpart,
 148   &deliver_localpart_data,
 149   &deliver_localpart_orig,
 150   &deliver_localpart_parent,
 151   &deliver_localpart_prefix,
 152   &deliver_localpart_suffix,
 153   (uschar **)(&deliver_recipients),
 154   &deliver_host,
 155   &deliver_home,
 156   &address_file,
 157   &address_pipe,
 158   &self_hostname,
 159   NULL };
 160
 161 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 162
 163 /* General global variables */
 164
 165 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_CVARS + ACL_MVARS];
 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 BOOL    check_rfc2047_length   = TRUE;
 376 int     check_spool_inodes     = 0;
 377 int     check_spool_space      = 0;
 378 int     clmacro_count          = 0;
 379 uschar *clmacros[MAX_CLMACROS];
 380 BOOL    config_changed         = FALSE;
 381 FILE   *config_file            = NULL;
 382 uschar *config_filename        = NULL;
 383 int     config_lineno          = 0;
 384 #ifdef CONFIGURE_GROUP
 385 gid_t   config_gid             = CONFIGURE_GROUP;
 386 #endif
 387 uschar *config_main_filelist   = US CONFIGURE_FILE
 388                          "\0<-----------Space to patch configure_filename->";
 389 uschar *config_main_filename   = NULL;
 390
 391 #ifdef CONFIGURE_OWNER
 392 uid_t   config_uid             = CONFIGURE_OWNER;
 393 #endif
 394
 395 int     connection_max_messages= -1;
 396 uschar *continue_hostname      = NULL;
 397 uschar *continue_host_address  = NULL;
 398 BOOL    continue_more          = FALSE;
 399 int     continue_sequence      = 1;
 400 uschar *continue_transport     = NULL;
 401
 402 uschar *csa_status             = NULL;
 403
 404 BOOL    daemon_listen          = FALSE;
 405 uschar *daemon_smtp_port       = US"smtp";
 406 int     daemon_startup_retries = 9;
 407 int     daemon_startup_sleep   = 30;
 408 BOOL    debug_daemon           = FALSE;
 409 int     debug_fd               = -1;
 410 FILE   *debug_file             = NULL;
 411 bit_table debug_options[]      = {
 412   { US"acl",            D_acl },
 413   { US"all",            D_all },
 414   { US"auth",           D_auth },
 415   { US"deliver",        D_deliver },
 416   { US"dns",            D_dns },
 417   { US"dnsbl",          D_dnsbl },
 418   { US"exec",           D_exec },
 419   { US"expand",         D_expand },
 420   { US"filter",         D_filter },
 421   { US"hints_lookup",   D_hints_lookup },
 422   { US"host_lookup",    D_host_lookup },
 423   { US"ident",          D_ident },
 424   { US"interface",      D_interface },
 425   { US"lists",          D_lists },
 426   { US"load",           D_load },
 427   { US"local_scan",     D_local_scan },
 428   { US"lookup",         D_lookup },
 429   { US"memory",         D_memory },
 430   { US"pid",            D_pid },
 431   { US"process_info",   D_process_info },
 432   { US"queue_run",      D_queue_run },
 433   { US"receive",        D_receive },
 434   { US"resolver",       D_resolver },
 435   { US"retry",          D_retry },
 436   { US"rewrite",        D_rewrite },
 437   { US"route",          D_route },
 438   { US"timestamp",      D_timestamp },
 439   { US"tls",            D_tls },
 440   { US"transport",      D_transport },
 441   { US"uid",            D_uid },
 442   { US"verify",         D_verify }
 443 };
 444 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 445 unsigned int debug_selector    = 0;
 446 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 447 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 448 BOOL    delivery_date_remove   = TRUE;
 449 uschar *deliver_address_data   = NULL;
 450 int     deliver_datafile       = -1;
 451 uschar *deliver_domain         = NULL;
 452 uschar *deliver_domain_data    = NULL;
 453 uschar *deliver_domain_orig    = NULL;
 454 uschar *deliver_domain_parent  = NULL;
 455 BOOL    deliver_drop_privilege = FALSE;
 456 BOOL    deliver_firsttime      = FALSE;
 457 BOOL    deliver_force          = FALSE;
 458 BOOL    deliver_freeze         = FALSE;
 459 int     deliver_frozen_at      = 0;
 460 uschar *deliver_home           = NULL;
 461 uschar *deliver_host           = NULL;
 462 uschar *deliver_host_address   = NULL;
 463 uschar *deliver_in_buffer      = NULL;
 464 ino_t   deliver_inode          = 0;
 465 uschar *deliver_localpart      = NULL;
 466 uschar *deliver_localpart_data = NULL;
 467 uschar *deliver_localpart_orig = NULL;
 468 uschar *deliver_localpart_parent = NULL;
 469 uschar *deliver_localpart_prefix = NULL;
 470 uschar *deliver_localpart_suffix = NULL;
 471 BOOL    deliver_force_thaw     = FALSE;
 472 BOOL    deliver_manual_thaw    = FALSE;
 473 uschar *deliver_out_buffer     = NULL;
 474 int     deliver_queue_load_max = -1;
 475 address_item  *deliver_recipients = NULL;
 476 uschar *deliver_selectstring   = NULL;
 477 BOOL    deliver_selectstring_regex = FALSE;
 478 uschar *deliver_selectstring_sender = NULL;
 479 BOOL    deliver_selectstring_sender_regex = FALSE;
 480 #ifdef WITH_OLD_DEMIME
 481 int     demime_errorlevel      = 0;
 482 int     demime_ok              = 0;
 483 uschar *demime_reason          = NULL;
 484 #endif
 485 BOOL    disable_ipv6           = FALSE;
 486 BOOL    disable_logging        = FALSE;
 487
 488 #ifdef EXPERIMENTAL_DOMAINKEYS
 489 uschar *dk_signing_domain      = NULL;
 490 uschar *dk_signing_selector    = NULL;
 491 int     dk_do_verify           = 0;
 492 #endif
 493
 494 uschar *dns_again_means_nonexist = NULL;
 495 int     dns_csa_search_limit   = 5;
 496 BOOL    dns_csa_use_reverse    = TRUE;
 497 uschar *dns_ipv4_lookup        = NULL;
 498 int     dns_retrans            = 0;
 499 int     dns_retry              = 0;
 500 uschar *dnslist_domain         = NULL;
 501 uschar *dnslist_text           = NULL;
 502 uschar *dnslist_value          = NULL;
 503 tree_node *domainlist_anchor   = NULL;
 504 int     domainlist_count       = 0;
 505 BOOL    dont_deliver           = FALSE;
 506 BOOL    dot_ends               = TRUE;
 507 BOOL    drop_cr                = FALSE;         /* No longer used */
 508
 509 BOOL    enable_dollar_recipients = FALSE;
 510 BOOL    envelope_to_remove     = TRUE;
 511 int     errno_quota            = ERRNO_QUOTA;
 512 uschar *errors_copy            = NULL;
 513 int     error_handling         = ERRORS_SENDER;
 514 uschar *errors_reply_to        = NULL;
 515 int     errors_sender_rc       = EXIT_FAILURE;
 516
 517 gid_t   exim_gid               = EXIM_GID;
 518 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 519 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 520                         "\0<---------------Space to patch exim_path->";
 521 uid_t   exim_uid               = EXIM_UID;
 522 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 523 int     expand_forbid          = 0;
 524 int     expand_nlength[EXPAND_MAXN+1];
 525 int     expand_nmax            = -1;
 526 uschar *expand_nstring[EXPAND_MAXN+1];
 527 BOOL    expand_string_forcedfail = FALSE;
 528 uschar *expand_string_message;
 529 BOOL    extract_addresses_remove_arguments = TRUE;
 530 uschar *extra_local_interfaces = NULL;
 531
 532 int     fake_response          = OK;
 533 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).";
 534 int     filter_n[FILTER_VARIABLE_COUNT];
 535 BOOL    filter_running         = FALSE;
 536 int     filter_sn[FILTER_VARIABLE_COUNT];
 537 int     filter_test            = FTEST_NONE;
 538 uschar *filter_test_sfile      = NULL;
 539 uschar *filter_test_ufile      = NULL;
 540 uschar *filter_thisaddress     = NULL;
 541 int     finduser_retries       = 0;
 542 #ifdef WITH_OLD_DEMIME
 543 uschar *found_extension        = NULL;
 544 #endif
 545 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 546 uschar *freeze_tell            = NULL;
 547 uschar *fudged_queue_times     = US"";
 548
 549 uschar *gecos_name             = NULL;
 550 uschar *gecos_pattern          = NULL;
 551 rewrite_rule  *global_rewrite_rules = NULL;
 552
 553 uschar *headers_charset        = US HEADERS_CHARSET;
 554 int     header_insert_maxlen   = 64 * 1024;
 555 header_line  *header_last      = NULL;
 556 header_line  *header_list      = NULL;
 557 int     header_maxsize         = HEADER_MAXSIZE;
 558 int     header_line_maxsize    = 0;
 559
 560 header_name header_names[] = {
 561   { US"bcc",            3, TRUE,  htype_bcc },
 562   { US"cc",             2, TRUE,  htype_cc },
 563   { US"date",           4, TRUE,  htype_date },
 564   { US"delivery-date", 13, FALSE, htype_delivery_date },
 565   { US"envelope-to",   11, FALSE, htype_envelope_to },
 566   { US"from",           4, TRUE,  htype_from },
 567   { US"message-id",    10, TRUE,  htype_id },
 568   { US"received",       8, FALSE, htype_received },
 569   { US"reply-to",       8, FALSE, htype_reply_to },
 570   { US"return-path",   11, FALSE, htype_return_path },
 571   { US"sender",         6, TRUE,  htype_sender },
 572   { US"subject",        7, FALSE, htype_subject },
 573   { US"to",             2, TRUE,  htype_to }
 574 };
 575
 576 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 577
 578 BOOL    header_rewritten       = FALSE;
 579 uschar *helo_accept_junk_hosts = NULL;
 580 uschar *helo_allow_chars       = US"";
 581 uschar *helo_lookup_domains    = US"@ : @[]";
 582 uschar *helo_try_verify_hosts  = NULL;
 583 BOOL    helo_verified          = FALSE;
 584 BOOL    helo_verify_failed     = FALSE;
 585 uschar *helo_verify_hosts      = NULL;
 586 uschar *hex_digits             = US"0123456789abcdef";
 587 uschar *hold_domains           = NULL;
 588 BOOL    host_checking          = FALSE;
 589 BOOL    host_checking_callout  = FALSE;
 590 uschar *host_data              = NULL;
 591 BOOL    host_find_failed_syntax= FALSE;
 592 uschar *host_lookup            = NULL;
 593 BOOL    host_lookup_deferred   = FALSE;
 594 BOOL    host_lookup_failed     = FALSE;
 595 uschar *host_lookup_order      = US"bydns:byaddr";
 596 uschar *host_lookup_msg        = US"";
 597 int     host_number            = 0;
 598 uschar *host_number_string     = NULL;
 599 uschar *host_reject_connection = NULL;
 600 tree_node *hostlist_anchor     = NULL;
 601 int     hostlist_count         = 0;
 602 uschar *hosts_treat_as_local   = NULL;
 603 uschar *hosts_connection_nolog = NULL;
 604
 605 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 606 BOOL    ignore_fromline_local  = FALSE;
 607 uschar *ignore_fromline_hosts  = NULL;
 608 uschar *interface_address      = NULL;
 609 int     interface_port         = -1;
 610 BOOL    is_inetd               = FALSE;
 611
 612 int     journal_fd             = -1;
 613
 614 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 615
 616 uschar *eldap_dn               = NULL;
 617 int     load_average           = -2;
 618 BOOL    local_error_message    = FALSE;
 619 BOOL    local_from_check       = TRUE;
 620 uschar *local_from_prefix      = NULL;
 621 uschar *local_from_suffix      = NULL;
 622
 623 #if HAVE_IPV6
 624 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 625 #else
 626 uschar *local_interfaces       = US"0.0.0.0";
 627 #endif
 628
 629 uschar *local_scan_data        = NULL;
 630 int     local_scan_timeout     = 5*60;
 631 BOOL    local_sender_retain    = FALSE;
 632 gid_t   local_user_gid         = (gid_t)(-1);
 633 uid_t   local_user_uid         = (uid_t)(-1);
 634
 635 tree_node *localpartlist_anchor= NULL;
 636 int     localpartlist_count    = 0;
 637 uschar *log_buffer             = NULL;
 638 unsigned int log_extra_selector = LX_default;
 639 uschar *log_file_path          = US LOG_FILE_PATH
 640                            "\0<--------------Space to patch log_file_path->";
 641
 642 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 643 are the ones that get put into log_write_selector. They can be used in calls to
 644 log_write() to test for the bit. The options with LX_xxx identifiers have
 645 values greater than 0x80000000 and are put int log_extra_selector (without the
 646 top bit). They are never used in calls to log_write(), but are tested
 647 independently. This separation became necessary when the number of log
 648 selectors was getting close to filling a 32-bit word. */
 649
 650 bit_table log_options[]        = {
 651   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 652   { US"address_rewrite",              L_address_rewrite },
 653   { US"all",                          L_all },
 654   { US"all_parents",                  L_all_parents },
 655   { US"arguments",                    LX_arguments },
 656   { US"connection_reject",            L_connection_reject },
 657   { US"delay_delivery",               L_delay_delivery },
 658   { US"deliver_time",                 LX_deliver_time },
 659   { US"delivery_size",                LX_delivery_size },
 660   { US"dnslist_defer",                L_dnslist_defer },
 661   { US"etrn",                         L_etrn },
 662   { US"host_lookup_failed",           L_host_lookup_failed },
 663   { US"ident_timeout",                LX_ident_timeout },
 664   { US"incoming_interface",           LX_incoming_interface },
 665   { US"incoming_port",                LX_incoming_port },
 666   { US"lost_incoming_connection",     L_lost_incoming_connection },
 667   { US"outgoing_port",                LX_outgoing_port },
 668   { US"queue_run",                    L_queue_run },
 669   { US"queue_time",                   LX_queue_time },
 670   { US"queue_time_overall",           LX_queue_time_overall },
 671   { US"received_recipients",          LX_received_recipients },
 672   { US"received_sender",              LX_received_sender },
 673   { US"rejected_header",              LX_rejected_header },
 674   { US"rejected_headers",             LX_rejected_header },
 675   { US"retry_defer",                  L_retry_defer },
 676   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 677   { US"sender_on_delivery",           LX_sender_on_delivery },
 678   { US"size_reject",                  L_size_reject },
 679   { US"skip_delivery",                L_skip_delivery },
 680   { US"smtp_confirmation",            LX_smtp_confirmation },
 681   { US"smtp_connection",              L_smtp_connection },
 682   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 683   { US"smtp_protocol_error",          L_smtp_protocol_error },
 684   { US"smtp_syntax_error",            L_smtp_syntax_error },
 685   { US"subject",                      LX_subject },
 686   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 687   { US"tls_cipher",                   LX_tls_cipher },
 688   { US"tls_peerdn",                   LX_tls_peerdn },
 689   { US"unknown_in_list",              LX_unknown_in_list }
 690 };
 691
 692 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 693 unsigned int log_write_selector= L_default;
 694 uschar *log_selector_string    = NULL;
 695 FILE   *log_stderr             = NULL;
 696 BOOL    log_testing_mode       = FALSE;
 697 BOOL    log_timezone           = FALSE;
 698 uschar *login_sender_address   = NULL;
 699 int     lookup_open_max        = 25;
 700 uschar *lookup_value           = NULL;
 701
 702 macro_item  *macros            = NULL;
 703 uschar *mailstore_basename     = NULL;
 704 #ifdef WITH_CONTENT_SCAN
 705 uschar *malware_name           = NULL;  /* Virus Name */
 706 #endif
 707 int     max_username_length    = 0;
 708 int     message_age            = 0;
 709 uschar *message_body           = NULL;
 710 uschar *message_body_end       = NULL;
 711 int     message_body_size      = 0;
 712 int     message_body_visible   = 500;
 713 int     message_ended          = END_NOTSTARTED;
 714 uschar *message_headers        = NULL;
 715 uschar *message_id;
 716 uschar *message_id_domain      = NULL;
 717 uschar *message_id_text        = NULL;
 718 struct timeval message_id_tv   = { 0, 0 };
 719 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 720 uschar *message_id_external;
 721 int     message_linecount      = 0;
 722 BOOL    message_logs           = TRUE;
 723 int     message_size           = 0;
 724 uschar *message_size_limit     = US"50M";
 725 uschar  message_subdir[2]      = { 0, 0 };
 726 uschar *message_reference      = NULL;
 727
 728 /* MIME ACL expandables */
 729 #ifdef WITH_CONTENT_SCAN
 730 int     mime_anomaly_level     = 0;
 731 uschar *mime_anomaly_text      = NULL;
 732 uschar *mime_boundary          = NULL;
 733 uschar *mime_charset           = NULL;
 734 uschar *mime_content_description = NULL;
 735 uschar *mime_content_disposition = NULL;
 736 uschar *mime_content_id        = NULL;
 737 unsigned int mime_content_size = 0;
 738 uschar *mime_content_transfer_encoding = NULL;
 739 uschar *mime_content_type      = NULL;
 740 uschar *mime_decoded_filename  = NULL;
 741 uschar *mime_filename          = NULL;
 742 int     mime_is_multipart      = 0;
 743 int     mime_is_coverletter    = 0;
 744 int     mime_is_rfc822         = 0;
 745 int     mime_part_count        = -1;
 746 #endif
 747
 748 BOOL    mua_wrapper            = FALSE;
 749
 750 uid_t  *never_users            = NULL;
 751 #ifdef WITH_CONTENT_SCAN
 752 BOOL    no_mbox_unspool        = FALSE;
 753 #endif
 754 BOOL    no_multiline_responses = FALSE;
 755
 756 uid_t   original_euid;
 757 gid_t   originator_gid;
 758 uschar *originator_login       = NULL;
 759 uschar *originator_name        = NULL;
 760 uid_t   originator_uid;
 761 uschar *override_local_interfaces = NULL;
 762 uschar *override_pid_file_path = NULL;
 763
 764 BOOL    parse_allow_group      = FALSE;
 765 BOOL    parse_found_group      = FALSE;
 766 uschar *percent_hack_domains   = NULL;
 767 uschar *pid_file_path          = US PID_FILE_PATH
 768                            "\0<--------------Space to patch pid_file_path->";
 769 uschar *pipelining_advertise_hosts = US"*";
 770 BOOL    preserve_message_logs  = FALSE;
 771 uschar *primary_hostname       = NULL;
 772 BOOL    print_topbitchars      = FALSE;
 773 uschar  process_info[PROCESS_INFO_SIZE];
 774 uschar *process_log_path       = NULL;
 775 BOOL    prod_requires_admin    = TRUE;
 776 uschar *prvscheck_address      = NULL;
 777 uschar *prvscheck_keynum       = NULL;
 778 uschar *prvscheck_result       = NULL;
 779
 780
 781 uschar *qualify_domain_recipient = NULL;
 782 uschar *qualify_domain_sender  = NULL;
 783 BOOL    queue_2stage           = FALSE;
 784 uschar *queue_domains          = NULL;
 785 int     queue_interval         = -1;
 786 BOOL    queue_list_requires_admin = TRUE;
 787 BOOL    queue_only             = FALSE;
 788 uschar *queue_only_file        = NULL;
 789 int     queue_only_load        = -1;
 790 BOOL    queue_only_override    = TRUE;
 791 BOOL    queue_only_policy      = FALSE;
 792 BOOL    queue_run_first_delivery = FALSE;
 793 BOOL    queue_run_force        = FALSE;
 794 BOOL    queue_run_in_order     = FALSE;
 795 BOOL    queue_run_local        = FALSE;
 796 int     queue_run_max          = 5;
 797 pid_t   queue_run_pid          = (pid_t)0;
 798 int     queue_run_pipe         = -1;
 799 BOOL    queue_running          = FALSE;
 800 BOOL    queue_smtp             = FALSE;
 801 uschar *queue_smtp_domains     = NULL;
 802
 803 unsigned int random_seed       = 0;
 804 tree_node *ratelimiters_cmd    = NULL;
 805 tree_node *ratelimiters_conn   = NULL;
 806 tree_node *ratelimiters_mail   = NULL;
 807 uschar *raw_active_hostname    = NULL;
 808 uschar *raw_sender             = NULL;
 809 uschar **raw_recipients        = NULL;
 810 int     raw_recipients_count   = 0;
 811
 812 int     rcpt_count             = 0;
 813 int     rcpt_fail_count        = 0;
 814 int     rcpt_defer_count       = 0;
 815 gid_t   real_gid;
 816 uid_t   real_uid;
 817 BOOL    really_exim            = TRUE;
 818 BOOL    receive_call_bombout   = FALSE;
 819 int     receive_linecount      = 0;
 820 int     receive_messagecount   = 0;
 821 int     receive_timeout        = 0;
 822 int     received_count         = 0;
 823 uschar *received_for           = NULL;
 824
 825 /*  This is the default text for Received headers generated by Exim. The
 826 date  will be automatically added on the end. */
 827
 828 uschar *received_header_text   = US
 829      "Received: "
 830      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 831      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 832      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 833      "by $primary_hostname "
 834      "${if def:received_protocol {with $received_protocol}} "
 835      #ifdef SUPPORT_TLS
 836      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 837      #endif
 838      "(Exim $version_number)\n\t"
 839      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 840      "id $message_exim_id"
 841      "${if def:received_for {\n\tfor $received_for}}"
 842      "\0<---------------Space to patch received_header_text->";
 843
 844 int     received_headers_max   = 30;
 845 uschar *received_protocol      = NULL;
 846 int     received_time          = 0;
 847 uschar *recipient_data         = NULL;
 848 uschar *recipient_unqualified_hosts = NULL;
 849 uschar *recipient_verify_failure = NULL;
 850 int     recipients_count       = 0;
 851 BOOL    recipients_discarded   = FALSE;
 852 recipient_item  *recipients_list = NULL;
 853 int     recipients_list_max    = 0;
 854 int     recipients_max         = 0;
 855 BOOL    recipients_max_reject  = FALSE;
 856 const pcre *regex_AUTH         = NULL;
 857 const pcre *regex_check_dns_names = NULL;
 858 const pcre *regex_From         = NULL;
 859 const pcre *regex_IGNOREQUOTA  = NULL;
 860 const pcre *regex_PIPELINING   = NULL;
 861 const pcre *regex_SIZE         = NULL;
 862 const pcre *regex_ismsgid      = NULL;
 863 #ifdef WITH_CONTENT_SCAN
 864 uschar *regex_match_string     = NULL;
 865 #endif
 866 int     remote_delivery_count  = 0;
 867 int     remote_max_parallel    = 2;
 868 uschar *remote_sort_domains    = NULL;
 869 int     retry_data_expire      = 7*24*60*60;
 870 int     retry_interval_max     = 24*60*60;
 871 int     retry_maximum_timeout  = 0;        /* set from retry config */
 872 retry_config  *retries         = NULL;
 873 uschar *return_path            = NULL;
 874 BOOL    return_path_remove     = TRUE;
 875 int     rewrite_existflags     = 0;
 876 uschar *rfc1413_hosts          = US"*";
 877 int     rfc1413_query_timeout  = 30;
 878 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 879 uid_t   root_uid               = ROOT_UID;
 880
 881 router_instance  *routers  = NULL;
 882 router_instance  router_defaults = {
 883     NULL,                      /* chain pointer */
 884     NULL,                      /* name */
 885     NULL,                      /* info */
 886     NULL,                      /* private options block pointer */
 887     NULL,                      /* driver name */
 888
 889     NULL,                      /* address_data */
 890 #ifdef EXPERIMENTAL_BRIGHTMAIL
 891     NULL,                      /* bmi_rule */
 892 #endif
 893     NULL,                      /* cannot_route_message */
 894     NULL,                      /* condition */
 895     NULL,                      /* current_directory */
 896     NULL,                      /* debug_string */
 897     NULL,                      /* domains */
 898     NULL,                      /* errors_to */
 899     NULL,                      /* expand_gid */
 900     NULL,                      /* expand_uid */
 901     NULL,                      /* expand_more */
 902     NULL,                      /* expand_unseen */
 903     NULL,                      /* extra_headers */
 904     NULL,                      /* fallback_hosts */
 905     NULL,                      /* home_directory */
 906     NULL,                      /* ignore_target_hosts */
 907     NULL,                      /* local_parts */
 908     NULL,                      /* pass_router_name */
 909     NULL,                      /* prefix */
 910     NULL,                      /* redirect_router_name */
 911     NULL,                      /* remove_headers */
 912     NULL,                      /* require_files */
 913     NULL,                      /* router_home_directory */
 914     US"freeze",                /* self */
 915     NULL,                      /* senders */
 916     NULL,                      /* suffix */
 917     NULL,                      /* translate_ip_address */
 918     NULL,                      /* transport_name */
 919
 920     TRUE,                      /* address_test */
 921 #ifdef EXPERIMENTAL_BRIGHTMAIL
 922     FALSE,                     /* bmi_deliver_alternate */
 923     FALSE,                     /* bmi_deliver_default */
 924     FALSE,                     /* bmi_dont_deliver */
 925 #endif
 926     TRUE,                      /* expn */
 927     FALSE,                     /* caseful_local_part */
 928     FALSE,                     /* check_local_user */
 929     FALSE,                     /* disable_logging */
 930     FALSE,                     /* fail_verify_recipient */
 931     FALSE,                     /* fail_verify_sender */
 932     FALSE,                     /* gid_set */
 933     FALSE,                     /* initgroups */
 934     TRUE_UNSET,                /* log_as_local */
 935     TRUE,                      /* more */
 936     FALSE,                     /* pass_on_timeout */
 937     FALSE,                     /* prefix_optional */
 938     TRUE,                      /* repeat_use */
 939     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 940     FALSE,                     /* same_domain_copy_routing */
 941     FALSE,                     /* self_rewrite */
 942     FALSE,                     /* suffix_optional */
 943     FALSE,                     /* verify_only */
 944     TRUE,                      /* verify_recipient */
 945     TRUE,                      /* verify_sender */
 946     FALSE,                     /* uid_set */
 947     FALSE,                     /* unseen */
 948
 949     self_freeze,               /* self_code */
 950     (uid_t)(-1),               /* uid */
 951     (gid_t)(-1),               /* gid */
 952
 953     NULL,                      /* fallback_hostlist */
 954     NULL,                      /* transport instance */
 955     NULL,                      /* pass_router */
 956     NULL                       /* redirect_router */
 957 };
 958
 959 ip_address_item *running_interfaces = NULL;
 960 BOOL    running_in_test_harness = FALSE;
 961
 962 /* This is a weird one. The following string gets patched in the binary by the
 963 script that sets up a copy of Exim for running in the test harness. It seems
 964 that compilers are now clever, and share constant strings if they can.
 965 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 966 make use of the end of this string in order to save space. So the patching then
 967 wrecks this. We default this optimization by adding some additional characters
 968 onto the end of the string. */
 969
 970 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 971
 972 int     runrc                  = 0;
 973
 974 uschar *search_error_message   = NULL;
 975 BOOL    search_find_defer      = FALSE;
 976 uschar *self_hostname          = NULL;
 977 uschar *sender_address         = NULL;
 978 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 979 uschar *sender_address_data    = NULL;
 980 BOOL    sender_address_forced  = FALSE;
 981 uschar *sender_address_unrewritten = NULL;
 982 uschar *sender_data            = NULL;
 983 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 984 uschar *sender_fullhost        = NULL;
 985 uschar *sender_helo_name       = NULL;
 986 uschar **sender_host_aliases   = &no_aliases;
 987 uschar *sender_host_address    = NULL;
 988 uschar *sender_host_authenticated = NULL;
 989 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 990 uschar *sender_host_name       = NULL;
 991 int     sender_host_port       = 0;
 992 BOOL    sender_host_notsocket  = FALSE;
 993 BOOL    sender_host_unknown    = FALSE;
 994 uschar *sender_ident           = NULL;
 995 BOOL    sender_local           = FALSE;
 996 BOOL    sender_name_forced     = FALSE;
 997 uschar *sender_rate            = NULL;
 998 uschar *sender_rate_limit      = NULL;
 999 uschar *sender_rate_period     = NULL;
1000 uschar *sender_rcvhost         = NULL;
1001 BOOL    sender_set_untrusted   = FALSE;
1002 uschar *sender_unqualified_hosts = NULL;
1003 uschar *sender_verify_failure = NULL;
1004 address_item *sender_verified_list  = NULL;
1005 address_item *sender_verified_failed = NULL;
1006 int     sender_verified_rc     = -1;
1007 BOOL    sender_verified_responded = FALSE;
1008 volatile  BOOL sigalrm_seen    = FALSE;
1009 uschar **sighup_argv           = NULL;
1010 int     smtp_accept_count      = 0;
1011 BOOL    smtp_accept_keepalive  = TRUE;
1012 int     smtp_accept_max        = 20;
1013 int     smtp_accept_max_nonmail= 10;
1014 uschar *smtp_accept_max_nonmail_hosts = US"*";
1015 int     smtp_accept_max_per_connection = 1000;
1016 uschar *smtp_accept_max_per_host = NULL;
1017 int     smtp_accept_queue      = 0;
1018 int     smtp_accept_queue_per_connection = 10;
1019 int     smtp_accept_reserve    = 0;
1020 uschar *smtp_active_hostname   = NULL;
1021 BOOL    smtp_authenticated     = FALSE;
1022 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1023                              "Exim $version_number $tod_full"
1024                              "\0<---------------Space to patch smtp_banner->";
1025 BOOL    smtp_batched_input     = FALSE;
1026 BOOL    smtp_check_spool_space = TRUE;
1027 uschar *smtp_cmd_argument      = NULL;
1028 uschar *smtp_cmd_buffer        = NULL;
1029 int     smtp_connect_backlog   = 20;
1030 double  smtp_delay_mail        = 0.0;
1031 double  smtp_delay_rcpt        = 0.0;
1032 BOOL    smtp_enforce_sync      = TRUE;
1033 FILE   *smtp_in                = NULL;
1034 BOOL    smtp_input             = FALSE;
1035 int     smtp_load_reserve      = -1;
1036 int     smtp_mailcmd_count     = 0;
1037 FILE   *smtp_out               = NULL;
1038 uschar *smtp_etrn_command      = NULL;
1039 BOOL    smtp_etrn_serialize    = TRUE;
1040 int     smtp_max_synprot_errors= 3;
1041 int     smtp_max_unknown_commands = 3;
1042 uschar *smtp_ratelimit_hosts   = NULL;
1043 uschar *smtp_ratelimit_mail    = NULL;
1044 uschar *smtp_ratelimit_rcpt    = NULL;
1045 uschar *smtp_read_error        = US"";
1046 int     smtp_receive_timeout   = 5*60;
1047 uschar *smtp_reserve_hosts     = NULL;
1048 BOOL    smtp_return_error_details = FALSE;
1049 int     smtp_rlm_base          = 0;
1050 double  smtp_rlm_factor        = 0.0;
1051 int     smtp_rlm_limit         = 0;
1052 int     smtp_rlm_threshold     = INT_MAX;
1053 int     smtp_rlr_base          = 0;
1054 double  smtp_rlr_factor        = 0.0;
1055 int     smtp_rlr_limit         = 0;
1056 int     smtp_rlr_threshold     = INT_MAX;
1057 BOOL    smtp_use_pipelining    = FALSE;
1058 BOOL    smtp_use_size          = FALSE;
1059
1060 #ifdef WITH_CONTENT_SCAN
1061 uschar *spamd_address          = US"127.0.0.1 783";
1062 uschar *spam_bar               = NULL;
1063 uschar *spam_report            = NULL;
1064 uschar *spam_score             = NULL;
1065 uschar *spam_score_int         = NULL;
1066 #endif
1067 #ifdef EXPERIMENTAL_SPF
1068 uschar *spf_header_comment     = NULL;
1069 uschar *spf_received           = NULL;
1070 uschar *spf_result             = NULL;
1071 uschar *spf_smtp_comment       = NULL;
1072 #endif
1073
1074 BOOL    split_spool_directory  = FALSE;
1075 uschar *spool_directory        = US SPOOL_DIRECTORY
1076                            "\0<--------------Space to patch spool_directory->";
1077 #ifdef EXPERIMENTAL_SRS
1078 uschar *srs_config             = NULL;
1079 uschar *srs_db_address         = NULL;
1080 uschar *srs_db_key             = NULL;
1081 int     srs_hashlength         = 6;
1082 int     srs_hashmin            = -1;
1083 int     srs_maxage             = 31;
1084 uschar *srs_orig_recipient     = NULL;
1085 uschar *srs_orig_sender        = NULL;
1086 uschar *srs_recipient          = NULL;
1087 uschar *srs_secrets            = NULL;
1088 uschar *srs_status             = NULL;
1089 BOOL    srs_usehash            = TRUE;
1090 BOOL    srs_usetimestamp       = TRUE;
1091 #endif
1092 int     string_datestamp_offset= -1;
1093 BOOL    strip_excess_angle_brackets = FALSE;
1094 BOOL    strip_trailing_dot     = FALSE;
1095 uschar *submission_domain      = NULL;
1096 BOOL    submission_mode        = FALSE;
1097 uschar *submission_name        = NULL;
1098 BOOL    suppress_local_fixups  = FALSE;
1099 BOOL    synchronous_delivery   = FALSE;
1100 BOOL    syslog_duplication     = TRUE;
1101 int     syslog_facility        = LOG_MAIL;
1102 uschar *syslog_processname     = US"exim";
1103 BOOL    syslog_timestamp       = TRUE;
1104 uschar *system_filter          = NULL;
1105
1106 uschar *system_filter_directory_transport = NULL;
1107 uschar *system_filter_file_transport = NULL;
1108 uschar *system_filter_pipe_transport = NULL;
1109 uschar *system_filter_reply_transport = NULL;
1110
1111 gid_t   system_filter_gid      = 0;
1112 BOOL    system_filter_gid_set  = FALSE;
1113 uid_t   system_filter_uid      = 0;
1114 BOOL    system_filter_uid_set  = FALSE;
1115 BOOL    system_filtering       = FALSE;
1116
1117 BOOL    tcp_nodelay            = TRUE;
1118 int     thismessage_size_limit = 0;
1119 int     timeout_frozen_after   = 0;
1120 BOOL    timestamps_utc         = FALSE;
1121
1122 transport_instance  *transports = NULL;
1123
1124 transport_instance  transport_defaults = {
1125     NULL,                     /* chain pointer */
1126     NULL,                     /* name */
1127     NULL,                     /* info */
1128     NULL,                     /* private options block pointer */
1129     NULL,                     /* driver name */
1130     NULL,                     /* setup entry point */
1131     1,                        /* batch_max */
1132     NULL,                     /* batch_id */
1133     NULL,                     /* home_dir */
1134     NULL,                     /* current_dir */
1135     TRUE,                     /* multi-domain */
1136     FALSE,                    /* overrides_hosts */
1137     100,                      /* max_addresses */
1138     500,                      /* connection_max_messages */
1139     FALSE,                    /* deliver_as_creator */
1140     FALSE,                    /* disable_logging */
1141     FALSE,                    /* initgroups */
1142     FALSE,                    /* uid_set */
1143     FALSE,                    /* gid_set */
1144     (uid_t)(-1),              /* uid */
1145     (gid_t)(-1),              /* gid */
1146     NULL,                     /* expand_uid */
1147     NULL,                     /* expand_gid */
1148     NULL,                     /* warn_message */
1149     NULL,                     /* shadow */
1150     NULL,                     /* shadow_condition */
1151     NULL,                     /* filter_command */
1152     NULL,                     /* add_headers */
1153     NULL,                     /* remove_headers */
1154     NULL,                     /* return_path */
1155     NULL,                     /* debug_string */
1156     NULL,                     /* message_size_limit */
1157     NULL,                     /* headers_rewrite */
1158     NULL,                     /* rewrite_rules */
1159     0,                        /* rewrite_existflags */
1160     300,                      /* filter_timeout */
1161     FALSE,                    /* body_only */
1162     FALSE,                    /* delivery_date_add */
1163     FALSE,                    /* envelope_to_add */
1164     FALSE,                    /* headers_only */
1165     FALSE,                    /* rcpt_include_affixes */
1166     FALSE,                    /* return_path_add */
1167     FALSE,                    /* return_output */
1168     FALSE,                    /* return_fail_output */
1169     FALSE,                    /* log_output */
1170     FALSE,                    /* log_fail_output */
1171     FALSE,                    /* log_defer_output */
1172     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1173                                  1 nor 0 so can detect unset */
1174 };
1175
1176 int     transport_count;
1177 uschar **transport_filter_argv  = NULL;
1178 int     transport_filter_timeout;
1179 BOOL    transport_filter_timed_out = FALSE;
1180 int     transport_write_timeout= 0;
1181
1182 tree_node  *tree_dns_fails     = NULL;
1183 tree_node  *tree_duplicates    = NULL;
1184 tree_node  *tree_nonrecipients = NULL;
1185 tree_node  *tree_unusable      = NULL;
1186
1187 BOOL    trusted_caller         = FALSE;
1188 gid_t  *trusted_groups         = NULL;
1189 uid_t  *trusted_users          = NULL;
1190 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1191
1192 uschar *unknown_login          = NULL;
1193 uschar *unknown_username       = NULL;
1194 uschar *untrusted_set_sender   = NULL;
1195
1196 /*  A regex for matching a "From_" line in an incoming message, in the form
1197
1198     From ph10 Fri Jan  5 12:35 GMT 1996
1199
1200 which  the "mail" commands send to the MTA (undocumented, of course), or in
1201 the  form
1202
1203     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1204
1205 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1206 Because  of variations in time formats, just match up to the minutes. That
1207 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1208 so  just require one digit for hours and minutes. The weekday is also absent
1209 in  some forms. */
1210
1211 uschar *uucp_from_pattern      = US
1212    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1213    "(?:"                                          /* Non-extracting bracket */
1214    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1215    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1216    ")"                                            /* End alternation */
1217    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1218
1219 uschar *uucp_from_sender       = US"$1";
1220
1221 uschar *warn_message_file      = NULL;
1222 uschar *warnmsg_delay          = NULL;
1223 uschar *warnmsg_recipients     = NULL;
1224 BOOL    write_rejectlog        = TRUE;
1225
1226 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1227 uschar *version_date           = US"?";
1228 uschar *version_cnumber        = US"????";
1229 uschar *version_string         = US"?";
1230
1231 int     warning_count          = 0;
1232
1233 /*  End of globals.c */