src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.55 2006/07/13 13:53:33 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2006 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_debug_print", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_debug_string)) },
  43   { "server_mail_auth_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  45   { "server_set_id", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, set_id)) }
  47 };
  48
  49 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  50
  51 /* An empty host aliases list. */
  52
  53 uschar *no_aliases             = NULL;
  54
  55
  56 /* For comments on these variables, see globals.h. I'm too idle to
  57 duplicate them here... */
  58
  59 #ifdef EXIM_PERL
  60 uschar *opt_perl_startup       = NULL;
  61 BOOL    opt_perl_at_start      = FALSE;
  62 BOOL    opt_perl_started       = FALSE;
  63 #endif
  64
  65 #ifdef EXPAND_DLFUNC
  66 tree_node *dlobj_anchor        = NULL;
  67 #endif
  68
  69 #ifdef LOOKUP_IBASE
  70 uschar *ibase_servers          = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_LDAP
  74 uschar *eldap_default_servers  = NULL;
  75 int     eldap_version          = -1;
  76 #endif
  77
  78 #ifdef LOOKUP_MYSQL
  79 uschar *mysql_servers          = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_ORACLE
  83 uschar *oracle_servers         = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_PGSQL
  87 uschar *pgsql_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 BOOL    tls_active             = -1;
 103 BOOL    tls_certificate_verified = FALSE;
 104 uschar *tls_cipher             = NULL;
 105 BOOL    tls_on_connect         = FALSE;
 106 uschar *tls_on_connect_ports   = NULL;
 107 uschar *tls_peerdn             = NULL;
 108
 109 #ifdef SUPPORT_TLS
 110 const pcre *regex_STARTTLS     = NULL;
 111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 112 uschar *tls_certificate        = NULL;
 113 uschar *tls_crl                = NULL;
 114 uschar *tls_dhparam            = NULL;
 115 BOOL    tls_offered            = FALSE;
 116 uschar *tls_privatekey         = NULL;
 117 BOOL    tls_remember_esmtp     = FALSE;
 118 uschar *tls_require_ciphers    = NULL;
 119 uschar *tls_try_verify_hosts   = NULL;
 120 uschar *tls_verify_certificates= NULL;
 121 uschar *tls_verify_hosts       = NULL;
 122 #endif
 123
 124
 125 /* Input-reading functions for messages, so we can use special ones for
 126 incoming TCP/IP. The defaults use stdin. We never need these for any
 127 stand-alone tests. */
 128
 129 #ifndef STAND_ALONE
 130 int (*receive_getc)(void)      = stdin_getc;
 131 int (*receive_ungetc)(int)     = stdin_ungetc;
 132 int (*receive_feof)(void)      = stdin_feof;
 133 int (*receive_ferror)(void)    = stdin_ferror;
 134 #endif
 135
 136
 137 /* List of per-address expansion variables for clearing and saving/restoring
 138 when verifying one address while routing/verifying another. We have to have
 139 the size explicit, because it is referenced from more than one module. */
 140
 141 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 142   &deliver_address_data,
 143   &deliver_domain,
 144   &deliver_domain_data,
 145   &deliver_domain_orig,
 146   &deliver_domain_parent,
 147   &deliver_localpart,
 148   &deliver_localpart_data,
 149   &deliver_localpart_orig,
 150   &deliver_localpart_parent,
 151   &deliver_localpart_prefix,
 152   &deliver_localpart_suffix,
 153   (uschar **)(&deliver_recipients),
 154   &deliver_host,
 155   &deliver_home,
 156   &address_file,
 157   &address_pipe,
 158   &self_hostname,
 159   NULL };
 160
 161 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 162
 163 /* General global variables */
 164
 165 header_line *acl_added_headers = NULL;
 166 tree_node *acl_anchor          = NULL;
 167 uschar *acl_not_smtp           = NULL;
 168 #ifdef WITH_CONTENT_SCAN
 169 uschar *acl_not_smtp_mime      = NULL;
 170 #endif
 171 uschar *acl_not_smtp_start     = NULL;
 172 uschar *acl_smtp_auth          = NULL;
 173 uschar *acl_smtp_connect       = NULL;
 174 uschar *acl_smtp_data          = NULL;
 175 uschar *acl_smtp_etrn          = NULL;
 176 uschar *acl_smtp_expn          = NULL;
 177 uschar *acl_smtp_helo          = NULL;
 178 uschar *acl_smtp_mail          = NULL;
 179 uschar *acl_smtp_mailauth      = NULL;
 180 #ifdef WITH_CONTENT_SCAN
 181 uschar *acl_smtp_mime          = NULL;
 182 #endif
 183 uschar *acl_smtp_predata       = NULL;
 184 uschar *acl_smtp_quit          = NULL;
 185 uschar *acl_smtp_rcpt          = NULL;
 186 uschar *acl_smtp_starttls      = NULL;
 187 uschar *acl_smtp_vrfy          = NULL;
 188 BOOL    acl_temp_details       = FALSE;
 189 uschar *acl_var[ACL_CVARS + ACL_MVARS];
 190 uschar *acl_verify_message     = NULL;
 191 string_item *acl_warn_logged   = NULL;
 192
 193 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 194 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 195
 196 uschar *acl_wherenames[]       = { US"RCPT",
 197                                    US"MAIL",
 198                                    US"PREDATA",
 199                                    US"MIME",
 200                                    US"DATA",
 201                                    US"non-SMTP",
 202                                    US"AUTH",
 203                                    US"connection",
 204                                    US"ETRN",
 205                                    US"EXPN",
 206                                    US"EHLO or HELO",
 207                                    US"MAILAUTH",
 208                                    US"non-SMTP-start",
 209                                    US"QUIT",
 210                                    US"STARTTLS",
 211                                    US"VRFY"
 212                                  };
 213
 214 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 215                                    US"550",     /* MAIL */
 216                                    US"550",     /* PREDATA */
 217                                    US"550",     /* MIME */
 218                                    US"550",     /* DATA */
 219                                    US"0",       /* not SMTP; not relevant */
 220                                    US"503",     /* AUTH */
 221                                    US"550",     /* connect */
 222                                    US"458",     /* ETRN */
 223                                    US"550",     /* EXPN */
 224                                    US"550",     /* HELO/EHLO */
 225                                    US"0",       /* MAILAUTH; not relevant */
 226                                    US"0",       /* not SMTP; not relevant */
 227                                    US"0",       /* QUIT; not relevant */
 228                                    US"550",     /* STARTTLS */
 229                                    US"252"      /* VRFY */
 230                                  };
 231
 232 BOOL    active_local_from_check = FALSE;
 233 BOOL    active_local_sender_retain = FALSE;
 234 BOOL    accept_8bitmime        = FALSE;
 235 address_item  *addr_duplicate  = NULL;
 236
 237 address_item address_defaults = {
 238   NULL,                 /* next */
 239   NULL,                 /* parent */
 240   NULL,                 /* first */
 241   NULL,                 /* dupof */
 242   NULL,                 /* start_router */
 243   NULL,                 /* router */
 244   NULL,                 /* transport */
 245   NULL,                 /* host_list */
 246   NULL,                 /* host_used */
 247   NULL,                 /* fallback_hosts */
 248   NULL,                 /* reply */
 249   NULL,                 /* retries */
 250   NULL,                 /* address */
 251   NULL,                 /* unique */
 252   NULL,                 /* cc_local_part */
 253   NULL,                 /* lc_local_part */
 254   NULL,                 /* local_part */
 255   NULL,                 /* prefix */
 256   NULL,                 /* suffix */
 257   NULL,                 /* domain */
 258   NULL,                 /* address_retry_key */
 259   NULL,                 /* domain_retry_key */
 260   NULL,                 /* current_dir */
 261   NULL,                 /* home_dir */
 262   NULL,                 /* message */
 263   NULL,                 /* user_message */
 264   NULL,                 /* onetime_parent */
 265   NULL,                 /* pipe_expandn */
 266   NULL,                 /* return_filename */
 267   NULL,                 /* self_hostname */
 268   NULL,                 /* shadow_message */
 269   #ifdef SUPPORT_TLS
 270   NULL,                 /* cipher */
 271   NULL,                 /* peerdn */
 272   #endif
 273   (uid_t)(-1),          /* uid */
 274   (gid_t)(-1),          /* gid */
 275   0,                    /* flags */
 276   { 0 },                /* domain_cache - any larger array should be zeroed */
 277   { 0 },                /* localpart_cache - ditto */
 278   -1,                   /* mode */
 279   0,                    /* more_errno */
 280   ERRNO_UNKNOWNERROR,   /* basic_errno */
 281   0,                    /* child_count */
 282   -1,                   /* return_file */
 283   SPECIAL_NONE,         /* special_action */
 284   DEFER,                /* transport_return */
 285   {                     /* fields that are propagated to children */
 286     NULL,               /* address_data */
 287     NULL,               /* domain_data */
 288     NULL,               /* localpart_data */
 289     NULL,               /* errors_address */
 290     NULL,               /* extra_headers */
 291     NULL,               /* remove_headers */
 292 #ifdef EXPERIMENTAL_SRS
 293     NULL,               /* srs_sender */
 294 #endif
 295   }
 296 };
 297
 298 uschar *address_file           = NULL;
 299 uschar *address_pipe           = NULL;
 300 BOOL    address_test_mode      = FALSE;
 301 tree_node *addresslist_anchor  = NULL;
 302 int     addresslist_count      = 0;
 303 gid_t  *admin_groups           = NULL;
 304 BOOL    admin_user             = FALSE;
 305 BOOL    allow_auth_unadvertised= FALSE;
 306 BOOL    allow_domain_literals  = FALSE;
 307 BOOL    allow_mx_to_ip         = FALSE;
 308 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 309 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 310 BOOL    allow_utf8_domains     = FALSE;
 311 uschar *authenticated_id       = NULL;
 312 uschar *authenticated_sender   = NULL;
 313 BOOL    authentication_failed  = FALSE;
 314 auth_instance  *auths          = NULL;
 315 uschar *auth_advertise_hosts   = US"*";
 316 auth_instance auth_defaults    = {
 317     NULL,                      /* chain pointer */
 318     NULL,                      /* name */
 319     NULL,                      /* info */
 320     NULL,                      /* private options block pointer */
 321     NULL,                      /* driver_name */
 322     NULL,                      /* advertise_condition */
 323     NULL,                      /* public_name */
 324     NULL,                      /* set_id */
 325     NULL,                      /* server_mail_auth_condition */
 326     NULL,                      /* server_debug_string */
 327     FALSE,                     /* client */
 328     FALSE,                     /* server */
 329     FALSE                      /* advertised */
 330 };
 331
 332 uschar *auth_defer_msg         = US"reason not recorded";
 333 uschar *auth_defer_user_msg    = US"";
 334 uschar *auth_vars[AUTH_VARS];
 335 int     auto_thaw              = 0;
 336 #ifdef WITH_CONTENT_SCAN
 337 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 338 #endif
 339
 340 BOOL    background_daemon      = TRUE;
 341
 342 #if BASE_62 == 62
 343 uschar *base62_chars=
 344     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 345 #else
 346 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 347 #endif
 348
 349 uschar *bi_command             = NULL;
 350 uschar *big_buffer             = NULL;
 351 int     big_buffer_size        = BIG_BUFFER_SIZE;
 352 #ifdef EXPERIMENTAL_BRIGHTMAIL
 353 uschar *bmi_alt_location       = NULL;
 354 uschar *bmi_base64_tracker_verdict = NULL;
 355 uschar *bmi_base64_verdict     = NULL;
 356 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 357 int     bmi_deliver            = 1;
 358 int     bmi_run                = 0;
 359 uschar *bmi_verdicts           = NULL;
 360 #endif
 361 int     body_linecount         = 0;
 362 int     body_zerocount         = 0;
 363 uschar *bounce_message_file    = NULL;
 364 uschar *bounce_message_text    = NULL;
 365 uschar *bounce_recipient       = NULL;
 366 BOOL    bounce_return_body     = TRUE;
 367 BOOL    bounce_return_message  = TRUE;
 368 int     bounce_return_size_limit = 100*1024;
 369 uschar *bounce_sender_authentication = NULL;
 370 int     bsmtp_transaction_linecount = 0;
 371
 372 int     callout_cache_domain_positive_expire = 7*24*60*60;
 373 int     callout_cache_domain_negative_expire = 3*60*60;
 374 int     callout_cache_positive_expire = 24*60*60;
 375 int     callout_cache_negative_expire = 2*60*60;
 376 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 377 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 378 int     check_log_inodes       = 0;
 379 int     check_log_space        = 0;
 380 BOOL    check_rfc2047_length   = TRUE;
 381 int     check_spool_inodes     = 0;
 382 int     check_spool_space      = 0;
 383 int     clmacro_count          = 0;
 384 uschar *clmacros[MAX_CLMACROS];
 385 BOOL    config_changed         = FALSE;
 386 FILE   *config_file            = NULL;
 387 uschar *config_filename        = NULL;
 388 int     config_lineno          = 0;
 389 #ifdef CONFIGURE_GROUP
 390 gid_t   config_gid             = CONFIGURE_GROUP;
 391 #endif
 392 uschar *config_main_filelist   = US CONFIGURE_FILE
 393                          "\0<-----------Space to patch configure_filename->";
 394 uschar *config_main_filename   = NULL;
 395
 396 #ifdef CONFIGURE_OWNER
 397 uid_t   config_uid             = CONFIGURE_OWNER;
 398 #endif
 399
 400 int     connection_max_messages= -1;
 401 uschar *continue_hostname      = NULL;
 402 uschar *continue_host_address  = NULL;
 403 BOOL    continue_more          = FALSE;
 404 int     continue_sequence      = 1;
 405 uschar *continue_transport     = NULL;
 406
 407 uschar *csa_status             = NULL;
 408
 409 BOOL    daemon_listen          = FALSE;
 410 uschar *daemon_smtp_port       = US"smtp";
 411 int     daemon_startup_retries = 9;
 412 int     daemon_startup_sleep   = 30;
 413 BOOL    debug_daemon           = FALSE;
 414 int     debug_fd               = -1;
 415 FILE   *debug_file             = NULL;
 416 bit_table debug_options[]      = {
 417   { US"acl",            D_acl },
 418   { US"all",            D_all },
 419   { US"auth",           D_auth },
 420   { US"deliver",        D_deliver },
 421   { US"dns",            D_dns },
 422   { US"dnsbl",          D_dnsbl },
 423   { US"exec",           D_exec },
 424   { US"expand",         D_expand },
 425   { US"filter",         D_filter },
 426   { US"hints_lookup",   D_hints_lookup },
 427   { US"host_lookup",    D_host_lookup },
 428   { US"ident",          D_ident },
 429   { US"interface",      D_interface },
 430   { US"lists",          D_lists },
 431   { US"load",           D_load },
 432   { US"local_scan",     D_local_scan },
 433   { US"lookup",         D_lookup },
 434   { US"memory",         D_memory },
 435   { US"pid",            D_pid },
 436   { US"process_info",   D_process_info },
 437   { US"queue_run",      D_queue_run },
 438   { US"receive",        D_receive },
 439   { US"resolver",       D_resolver },
 440   { US"retry",          D_retry },
 441   { US"rewrite",        D_rewrite },
 442   { US"route",          D_route },
 443   { US"timestamp",      D_timestamp },
 444   { US"tls",            D_tls },
 445   { US"transport",      D_transport },
 446   { US"uid",            D_uid },
 447   { US"verify",         D_verify }
 448 };
 449 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 450 unsigned int debug_selector    = 0;
 451 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 452 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 453 BOOL    delivery_date_remove   = TRUE;
 454 uschar *deliver_address_data   = NULL;
 455 int     deliver_datafile       = -1;
 456 uschar *deliver_domain         = NULL;
 457 uschar *deliver_domain_data    = NULL;
 458 uschar *deliver_domain_orig    = NULL;
 459 uschar *deliver_domain_parent  = NULL;
 460 BOOL    deliver_drop_privilege = FALSE;
 461 BOOL    deliver_firsttime      = FALSE;
 462 BOOL    deliver_force          = FALSE;
 463 BOOL    deliver_freeze         = FALSE;
 464 int     deliver_frozen_at      = 0;
 465 uschar *deliver_home           = NULL;
 466 uschar *deliver_host           = NULL;
 467 uschar *deliver_host_address   = NULL;
 468 uschar *deliver_in_buffer      = NULL;
 469 ino_t   deliver_inode          = 0;
 470 uschar *deliver_localpart      = NULL;
 471 uschar *deliver_localpart_data = NULL;
 472 uschar *deliver_localpart_orig = NULL;
 473 uschar *deliver_localpart_parent = NULL;
 474 uschar *deliver_localpart_prefix = NULL;
 475 uschar *deliver_localpart_suffix = NULL;
 476 BOOL    deliver_force_thaw     = FALSE;
 477 BOOL    deliver_manual_thaw    = FALSE;
 478 uschar *deliver_out_buffer     = NULL;
 479 int     deliver_queue_load_max = -1;
 480 address_item  *deliver_recipients = NULL;
 481 uschar *deliver_selectstring   = NULL;
 482 BOOL    deliver_selectstring_regex = FALSE;
 483 uschar *deliver_selectstring_sender = NULL;
 484 BOOL    deliver_selectstring_sender_regex = FALSE;
 485 #ifdef WITH_OLD_DEMIME
 486 int     demime_errorlevel      = 0;
 487 int     demime_ok              = 0;
 488 uschar *demime_reason          = NULL;
 489 #endif
 490 BOOL    disable_ipv6           = FALSE;
 491 BOOL    disable_logging        = FALSE;
 492
 493 #ifdef EXPERIMENTAL_DOMAINKEYS
 494 uschar *dk_signing_domain      = NULL;
 495 uschar *dk_signing_selector    = NULL;
 496 int     dk_do_verify           = 0;
 497 #endif
 498
 499 uschar *dns_again_means_nonexist = NULL;
 500 int     dns_csa_search_limit   = 5;
 501 BOOL    dns_csa_use_reverse    = TRUE;
 502 uschar *dns_ipv4_lookup        = NULL;
 503 int     dns_retrans            = 0;
 504 int     dns_retry              = 0;
 505 uschar *dnslist_domain         = NULL;
 506 uschar *dnslist_text           = NULL;
 507 uschar *dnslist_value          = NULL;
 508 tree_node *domainlist_anchor   = NULL;
 509 int     domainlist_count       = 0;
 510 BOOL    dont_deliver           = FALSE;
 511 BOOL    dot_ends               = TRUE;
 512 BOOL    drop_cr                = FALSE;         /* No longer used */
 513
 514 BOOL    enable_dollar_recipients = FALSE;
 515 BOOL    envelope_to_remove     = TRUE;
 516 int     errno_quota            = ERRNO_QUOTA;
 517 uschar *errors_copy            = NULL;
 518 int     error_handling         = ERRORS_SENDER;
 519 uschar *errors_reply_to        = NULL;
 520 int     errors_sender_rc       = EXIT_FAILURE;
 521
 522 gid_t   exim_gid               = EXIM_GID;
 523 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 524 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 525                         "\0<---------------Space to patch exim_path->";
 526 uid_t   exim_uid               = EXIM_UID;
 527 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 528 int     expand_forbid          = 0;
 529 int     expand_nlength[EXPAND_MAXN+1];
 530 int     expand_nmax            = -1;
 531 uschar *expand_nstring[EXPAND_MAXN+1];
 532 BOOL    expand_string_forcedfail = FALSE;
 533 uschar *expand_string_message;
 534 BOOL    extract_addresses_remove_arguments = TRUE;
 535 uschar *extra_local_interfaces = NULL;
 536
 537 int     fake_response          = OK;
 538 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).";
 539 int     filter_n[FILTER_VARIABLE_COUNT];
 540 BOOL    filter_running         = FALSE;
 541 int     filter_sn[FILTER_VARIABLE_COUNT];
 542 int     filter_test            = FTEST_NONE;
 543 uschar *filter_test_sfile      = NULL;
 544 uschar *filter_test_ufile      = NULL;
 545 uschar *filter_thisaddress     = NULL;
 546 int     finduser_retries       = 0;
 547 #ifdef WITH_OLD_DEMIME
 548 uschar *found_extension        = NULL;
 549 #endif
 550 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 551 uschar *freeze_tell            = NULL;
 552 uschar *freeze_tell_config     = NULL;
 553 uschar *fudged_queue_times     = US"";
 554
 555 uschar *gecos_name             = NULL;
 556 uschar *gecos_pattern          = NULL;
 557 rewrite_rule  *global_rewrite_rules = NULL;
 558
 559 uschar *headers_charset        = US HEADERS_CHARSET;
 560 int     header_insert_maxlen   = 64 * 1024;
 561 header_line  *header_last      = NULL;
 562 header_line  *header_list      = NULL;
 563 int     header_maxsize         = HEADER_MAXSIZE;
 564 int     header_line_maxsize    = 0;
 565
 566 header_name header_names[] = {
 567   { US"bcc",            3, TRUE,  htype_bcc },
 568   { US"cc",             2, TRUE,  htype_cc },
 569   { US"date",           4, TRUE,  htype_date },
 570   { US"delivery-date", 13, FALSE, htype_delivery_date },
 571   { US"envelope-to",   11, FALSE, htype_envelope_to },
 572   { US"from",           4, TRUE,  htype_from },
 573   { US"message-id",    10, TRUE,  htype_id },
 574   { US"received",       8, FALSE, htype_received },
 575   { US"reply-to",       8, FALSE, htype_reply_to },
 576   { US"return-path",   11, FALSE, htype_return_path },
 577   { US"sender",         6, TRUE,  htype_sender },
 578   { US"subject",        7, FALSE, htype_subject },
 579   { US"to",             2, TRUE,  htype_to }
 580 };
 581
 582 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 583
 584 BOOL    header_rewritten       = FALSE;
 585 uschar *helo_accept_junk_hosts = NULL;
 586 uschar *helo_allow_chars       = US"";
 587 uschar *helo_lookup_domains    = US"@ : @[]";
 588 uschar *helo_try_verify_hosts  = NULL;
 589 BOOL    helo_verified          = FALSE;
 590 BOOL    helo_verify_failed     = FALSE;
 591 uschar *helo_verify_hosts      = NULL;
 592 uschar *hex_digits             = US"0123456789abcdef";
 593 uschar *hold_domains           = NULL;
 594 BOOL    host_checking          = FALSE;
 595 BOOL    host_checking_callout  = FALSE;
 596 uschar *host_data              = NULL;
 597 BOOL    host_find_failed_syntax= FALSE;
 598 uschar *host_lookup            = NULL;
 599 BOOL    host_lookup_deferred   = FALSE;
 600 BOOL    host_lookup_failed     = FALSE;
 601 uschar *host_lookup_order      = US"bydns:byaddr";
 602 uschar *host_lookup_msg        = US"";
 603 int     host_number            = 0;
 604 uschar *host_number_string     = NULL;
 605 uschar *host_reject_connection = NULL;
 606 tree_node *hostlist_anchor     = NULL;
 607 int     hostlist_count         = 0;
 608 uschar *hosts_treat_as_local   = NULL;
 609 uschar *hosts_connection_nolog = NULL;
 610
 611 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 612 BOOL    ignore_fromline_local  = FALSE;
 613 uschar *ignore_fromline_hosts  = NULL;
 614 uschar *interface_address      = NULL;
 615 int     interface_port         = -1;
 616 BOOL    is_inetd               = FALSE;
 617
 618 int     journal_fd             = -1;
 619
 620 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 621
 622 uschar *eldap_dn               = NULL;
 623 int     load_average           = -2;
 624 BOOL    local_error_message    = FALSE;
 625 BOOL    local_from_check       = TRUE;
 626 uschar *local_from_prefix      = NULL;
 627 uschar *local_from_suffix      = NULL;
 628
 629 #if HAVE_IPV6
 630 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 631 #else
 632 uschar *local_interfaces       = US"0.0.0.0";
 633 #endif
 634
 635 uschar *local_scan_data        = NULL;
 636 int     local_scan_timeout     = 5*60;
 637 BOOL    local_sender_retain    = FALSE;
 638 gid_t   local_user_gid         = (gid_t)(-1);
 639 uid_t   local_user_uid         = (uid_t)(-1);
 640
 641 tree_node *localpartlist_anchor= NULL;
 642 int     localpartlist_count    = 0;
 643 uschar *log_buffer             = NULL;
 644 unsigned int log_extra_selector = LX_default;
 645 uschar *log_file_path          = US LOG_FILE_PATH
 646                            "\0<--------------Space to patch log_file_path->";
 647
 648 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 649 are the ones that get put into log_write_selector. They can be used in calls to
 650 log_write() to test for the bit. The options with LX_xxx identifiers have
 651 values greater than 0x80000000 and are put int log_extra_selector (without the
 652 top bit). They are never used in calls to log_write(), but are tested
 653 independently. This separation became necessary when the number of log
 654 selectors was getting close to filling a 32-bit word. */
 655
 656 bit_table log_options[]        = {
 657   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 658   { US"address_rewrite",              L_address_rewrite },
 659   { US"all",                          L_all },
 660   { US"all_parents",                  L_all_parents },
 661   { US"arguments",                    LX_arguments },
 662   { US"connection_reject",            L_connection_reject },
 663   { US"delay_delivery",               L_delay_delivery },
 664   { US"deliver_time",                 LX_deliver_time },
 665   { US"delivery_size",                LX_delivery_size },
 666   { US"dnslist_defer",                L_dnslist_defer },
 667   { US"etrn",                         L_etrn },
 668   { US"host_lookup_failed",           L_host_lookup_failed },
 669   { US"ident_timeout",                LX_ident_timeout },
 670   { US"incoming_interface",           LX_incoming_interface },
 671   { US"incoming_port",                LX_incoming_port },
 672   { US"lost_incoming_connection",     L_lost_incoming_connection },
 673   { US"outgoing_port",                LX_outgoing_port },
 674   { US"queue_run",                    L_queue_run },
 675   { US"queue_time",                   LX_queue_time },
 676   { US"queue_time_overall",           LX_queue_time_overall },
 677   { US"received_recipients",          LX_received_recipients },
 678   { US"received_sender",              LX_received_sender },
 679   { US"rejected_header",              LX_rejected_header },
 680   { US"rejected_headers",             LX_rejected_header },
 681   { US"retry_defer",                  L_retry_defer },
 682   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 683   { US"sender_on_delivery",           LX_sender_on_delivery },
 684   { US"sender_verify_fail",           LX_sender_verify_fail },
 685   { US"size_reject",                  L_size_reject },
 686   { US"skip_delivery",                L_skip_delivery },
 687   { US"smtp_confirmation",            LX_smtp_confirmation },
 688   { US"smtp_connection",              L_smtp_connection },
 689   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 690   { US"smtp_protocol_error",          L_smtp_protocol_error },
 691   { US"smtp_syntax_error",            L_smtp_syntax_error },
 692   { US"subject",                      LX_subject },
 693   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 694   { US"tls_cipher",                   LX_tls_cipher },
 695   { US"tls_peerdn",                   LX_tls_peerdn },
 696   { US"unknown_in_list",              LX_unknown_in_list }
 697 };
 698
 699 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 700 unsigned int log_write_selector= L_default;
 701 uschar *log_selector_string    = NULL;
 702 FILE   *log_stderr             = NULL;
 703 BOOL    log_testing_mode       = FALSE;
 704 BOOL    log_timezone           = FALSE;
 705 uschar *login_sender_address   = NULL;
 706 int     lookup_open_max        = 25;
 707 uschar *lookup_value           = NULL;
 708
 709 macro_item  *macros            = NULL;
 710 uschar *mailstore_basename     = NULL;
 711 #ifdef WITH_CONTENT_SCAN
 712 uschar *malware_name           = NULL;  /* Virus Name */
 713 #endif
 714 int     max_username_length    = 0;
 715 int     message_age            = 0;
 716 uschar *message_body           = NULL;
 717 uschar *message_body_end       = NULL;
 718 int     message_body_size      = 0;
 719 int     message_body_visible   = 500;
 720 int     message_ended          = END_NOTSTARTED;
 721 uschar *message_headers        = NULL;
 722 uschar *message_id;
 723 uschar *message_id_domain      = NULL;
 724 uschar *message_id_text        = NULL;
 725 struct timeval message_id_tv   = { 0, 0 };
 726 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 727 uschar *message_id_external;
 728 int     message_linecount      = 0;
 729 BOOL    message_logs           = TRUE;
 730 int     message_size           = 0;
 731 uschar *message_size_limit     = US"50M";
 732 uschar  message_subdir[2]      = { 0, 0 };
 733 uschar *message_reference      = NULL;
 734
 735 /* MIME ACL expandables */
 736 #ifdef WITH_CONTENT_SCAN
 737 int     mime_anomaly_level     = 0;
 738 uschar *mime_anomaly_text      = NULL;
 739 uschar *mime_boundary          = NULL;
 740 uschar *mime_charset           = NULL;
 741 uschar *mime_content_description = NULL;
 742 uschar *mime_content_disposition = NULL;
 743 uschar *mime_content_id        = NULL;
 744 unsigned int mime_content_size = 0;
 745 uschar *mime_content_transfer_encoding = NULL;
 746 uschar *mime_content_type      = NULL;
 747 uschar *mime_decoded_filename  = NULL;
 748 uschar *mime_filename          = NULL;
 749 int     mime_is_multipart      = 0;
 750 int     mime_is_coverletter    = 0;
 751 int     mime_is_rfc822         = 0;
 752 int     mime_part_count        = -1;
 753 #endif
 754
 755 BOOL    mua_wrapper            = FALSE;
 756
 757 uid_t  *never_users            = NULL;
 758 #ifdef WITH_CONTENT_SCAN
 759 BOOL    no_mbox_unspool        = FALSE;
 760 #endif
 761 BOOL    no_multiline_responses = FALSE;
 762
 763 uid_t   original_euid;
 764 gid_t   originator_gid;
 765 uschar *originator_login       = NULL;
 766 uschar *originator_name        = NULL;
 767 uid_t   originator_uid;
 768 uschar *override_local_interfaces = NULL;
 769 uschar *override_pid_file_path = NULL;
 770
 771 BOOL    parse_allow_group      = FALSE;
 772 BOOL    parse_found_group      = FALSE;
 773 uschar *percent_hack_domains   = NULL;
 774 uschar *pid_file_path          = US PID_FILE_PATH
 775                            "\0<--------------Space to patch pid_file_path->";
 776 uschar *pipelining_advertise_hosts = US"*";
 777 BOOL    preserve_message_logs  = FALSE;
 778 uschar *primary_hostname       = NULL;
 779 BOOL    print_topbitchars      = FALSE;
 780 uschar  process_info[PROCESS_INFO_SIZE];
 781 uschar *process_log_path       = NULL;
 782 BOOL    prod_requires_admin    = TRUE;
 783 uschar *prvscheck_address      = NULL;
 784 uschar *prvscheck_keynum       = NULL;
 785 uschar *prvscheck_result       = NULL;
 786
 787
 788 uschar *qualify_domain_recipient = NULL;
 789 uschar *qualify_domain_sender  = NULL;
 790 BOOL    queue_2stage           = FALSE;
 791 uschar *queue_domains          = NULL;
 792 int     queue_interval         = -1;
 793 BOOL    queue_list_requires_admin = TRUE;
 794 BOOL    queue_only             = FALSE;
 795 uschar *queue_only_file        = NULL;
 796 int     queue_only_load        = -1;
 797 BOOL    queue_only_override    = TRUE;
 798 BOOL    queue_only_policy      = FALSE;
 799 BOOL    queue_run_first_delivery = FALSE;
 800 BOOL    queue_run_force        = FALSE;
 801 BOOL    queue_run_in_order     = FALSE;
 802 BOOL    queue_run_local        = FALSE;
 803 int     queue_run_max          = 5;
 804 pid_t   queue_run_pid          = (pid_t)0;
 805 int     queue_run_pipe         = -1;
 806 BOOL    queue_running          = FALSE;
 807 BOOL    queue_smtp             = FALSE;
 808 uschar *queue_smtp_domains     = NULL;
 809
 810 unsigned int random_seed       = 0;
 811 tree_node *ratelimiters_cmd    = NULL;
 812 tree_node *ratelimiters_conn   = NULL;
 813 tree_node *ratelimiters_mail   = NULL;
 814 uschar *raw_active_hostname    = NULL;
 815 uschar *raw_sender             = NULL;
 816 uschar **raw_recipients        = NULL;
 817 int     raw_recipients_count   = 0;
 818
 819 int     rcpt_count             = 0;
 820 int     rcpt_fail_count        = 0;
 821 int     rcpt_defer_count       = 0;
 822 gid_t   real_gid;
 823 uid_t   real_uid;
 824 BOOL    really_exim            = TRUE;
 825 BOOL    receive_call_bombout   = FALSE;
 826 int     receive_linecount      = 0;
 827 int     receive_messagecount   = 0;
 828 int     receive_timeout        = 0;
 829 int     received_count         = 0;
 830 uschar *received_for           = NULL;
 831
 832 /*  This is the default text for Received headers generated by Exim. The
 833 date  will be automatically added on the end. */
 834
 835 uschar *received_header_text   = US
 836      "Received: "
 837      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 838      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 839      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 840      "by $primary_hostname "
 841      "${if def:received_protocol {with $received_protocol}} "
 842      #ifdef SUPPORT_TLS
 843      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 844      #endif
 845      "(Exim $version_number)\n\t"
 846      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 847      "id $message_exim_id"
 848      "${if def:received_for {\n\tfor $received_for}}"
 849      "\0<---------------Space to patch received_header_text->";
 850
 851 int     received_headers_max   = 30;
 852 uschar *received_protocol      = NULL;
 853 int     received_time          = 0;
 854 uschar *recipient_data         = NULL;
 855 uschar *recipient_unqualified_hosts = NULL;
 856 uschar *recipient_verify_failure = NULL;
 857 int     recipients_count       = 0;
 858 BOOL    recipients_discarded   = FALSE;
 859 recipient_item  *recipients_list = NULL;
 860 int     recipients_list_max    = 0;
 861 int     recipients_max         = 0;
 862 BOOL    recipients_max_reject  = FALSE;
 863 const pcre *regex_AUTH         = NULL;
 864 const pcre *regex_check_dns_names = NULL;
 865 const pcre *regex_From         = NULL;
 866 const pcre *regex_IGNOREQUOTA  = NULL;
 867 const pcre *regex_PIPELINING   = NULL;
 868 const pcre *regex_SIZE         = NULL;
 869 const pcre *regex_smtp_code    = NULL;
 870 const pcre *regex_ismsgid      = NULL;
 871 #ifdef WITH_CONTENT_SCAN
 872 uschar *regex_match_string     = NULL;
 873 #endif
 874 int     remote_delivery_count  = 0;
 875 int     remote_max_parallel    = 2;
 876 uschar *remote_sort_domains    = NULL;
 877 int     retry_data_expire      = 7*24*60*60;
 878 int     retry_interval_max     = 24*60*60;
 879 int     retry_maximum_timeout  = 0;        /* set from retry config */
 880 retry_config  *retries         = NULL;
 881 uschar *return_path            = NULL;
 882 BOOL    return_path_remove     = TRUE;
 883 int     rewrite_existflags     = 0;
 884 uschar *rfc1413_hosts          = US"*";
 885 int     rfc1413_query_timeout  = 5;
 886 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 887 uid_t   root_uid               = ROOT_UID;
 888
 889 router_instance  *routers  = NULL;
 890 router_instance  router_defaults = {
 891     NULL,                      /* chain pointer */
 892     NULL,                      /* name */
 893     NULL,                      /* info */
 894     NULL,                      /* private options block pointer */
 895     NULL,                      /* driver name */
 896
 897     NULL,                      /* address_data */
 898 #ifdef EXPERIMENTAL_BRIGHTMAIL
 899     NULL,                      /* bmi_rule */
 900 #endif
 901     NULL,                      /* cannot_route_message */
 902     NULL,                      /* condition */
 903     NULL,                      /* current_directory */
 904     NULL,                      /* debug_string */
 905     NULL,                      /* domains */
 906     NULL,                      /* errors_to */
 907     NULL,                      /* expand_gid */
 908     NULL,                      /* expand_uid */
 909     NULL,                      /* expand_more */
 910     NULL,                      /* expand_unseen */
 911     NULL,                      /* extra_headers */
 912     NULL,                      /* fallback_hosts */
 913     NULL,                      /* home_directory */
 914     NULL,                      /* ignore_target_hosts */
 915     NULL,                      /* local_parts */
 916     NULL,                      /* pass_router_name */
 917     NULL,                      /* prefix */
 918     NULL,                      /* redirect_router_name */
 919     NULL,                      /* remove_headers */
 920     NULL,                      /* require_files */
 921     NULL,                      /* router_home_directory */
 922     US"freeze",                /* self */
 923     NULL,                      /* senders */
 924     NULL,                      /* suffix */
 925     NULL,                      /* translate_ip_address */
 926     NULL,                      /* transport_name */
 927
 928     TRUE,                      /* address_test */
 929 #ifdef EXPERIMENTAL_BRIGHTMAIL
 930     FALSE,                     /* bmi_deliver_alternate */
 931     FALSE,                     /* bmi_deliver_default */
 932     FALSE,                     /* bmi_dont_deliver */
 933 #endif
 934     TRUE,                      /* expn */
 935     FALSE,                     /* caseful_local_part */
 936     FALSE,                     /* check_local_user */
 937     FALSE,                     /* disable_logging */
 938     FALSE,                     /* fail_verify_recipient */
 939     FALSE,                     /* fail_verify_sender */
 940     FALSE,                     /* gid_set */
 941     FALSE,                     /* initgroups */
 942     TRUE_UNSET,                /* log_as_local */
 943     TRUE,                      /* more */
 944     FALSE,                     /* pass_on_timeout */
 945     FALSE,                     /* prefix_optional */
 946     TRUE,                      /* repeat_use */
 947     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 948     FALSE,                     /* same_domain_copy_routing */
 949     FALSE,                     /* self_rewrite */
 950     FALSE,                     /* suffix_optional */
 951     FALSE,                     /* verify_only */
 952     TRUE,                      /* verify_recipient */
 953     TRUE,                      /* verify_sender */
 954     FALSE,                     /* uid_set */
 955     FALSE,                     /* unseen */
 956
 957     self_freeze,               /* self_code */
 958     (uid_t)(-1),               /* uid */
 959     (gid_t)(-1),               /* gid */
 960
 961     NULL,                      /* fallback_hostlist */
 962     NULL,                      /* transport instance */
 963     NULL,                      /* pass_router */
 964     NULL                       /* redirect_router */
 965 };
 966
 967 ip_address_item *running_interfaces = NULL;
 968 BOOL    running_in_test_harness = FALSE;
 969
 970 /* This is a weird one. The following string gets patched in the binary by the
 971 script that sets up a copy of Exim for running in the test harness. It seems
 972 that compilers are now clever, and share constant strings if they can.
 973 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 974 make use of the end of this string in order to save space. So the patching then
 975 wrecks this. We default this optimization by adding some additional characters
 976 onto the end of the string. */
 977
 978 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 979
 980 int     runrc                  = 0;
 981
 982 uschar *search_error_message   = NULL;
 983 BOOL    search_find_defer      = FALSE;
 984 uschar *self_hostname          = NULL;
 985 uschar *sender_address         = NULL;
 986 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 987 uschar *sender_address_data    = NULL;
 988 BOOL    sender_address_forced  = FALSE;
 989 uschar *sender_address_unrewritten = NULL;
 990 uschar *sender_data            = NULL;
 991 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 992 uschar *sender_fullhost        = NULL;
 993 uschar *sender_helo_name       = NULL;
 994 uschar **sender_host_aliases   = &no_aliases;
 995 uschar *sender_host_address    = NULL;
 996 uschar *sender_host_authenticated = NULL;
 997 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 998 uschar *sender_host_name       = NULL;
 999 int     sender_host_port       = 0;
1000 BOOL    sender_host_notsocket  = FALSE;
1001 BOOL    sender_host_unknown    = FALSE;
1002 uschar *sender_ident           = NULL;
1003 BOOL    sender_local           = FALSE;
1004 BOOL    sender_name_forced     = FALSE;
1005 uschar *sender_rate            = NULL;
1006 uschar *sender_rate_limit      = NULL;
1007 uschar *sender_rate_period     = NULL;
1008 uschar *sender_rcvhost         = NULL;
1009 BOOL    sender_set_untrusted   = FALSE;
1010 uschar *sender_unqualified_hosts = NULL;
1011 uschar *sender_verify_failure = NULL;
1012 address_item *sender_verified_list  = NULL;
1013 address_item *sender_verified_failed = NULL;
1014 int     sender_verified_rc     = -1;
1015 BOOL    sender_verified_responded = FALSE;
1016 volatile  BOOL sigalrm_seen    = FALSE;
1017 uschar **sighup_argv           = NULL;
1018 int     smtp_accept_count      = 0;
1019 BOOL    smtp_accept_keepalive  = TRUE;
1020 int     smtp_accept_max        = 20;
1021 int     smtp_accept_max_nonmail= 10;
1022 uschar *smtp_accept_max_nonmail_hosts = US"*";
1023 int     smtp_accept_max_per_connection = 1000;
1024 uschar *smtp_accept_max_per_host = NULL;
1025 int     smtp_accept_queue      = 0;
1026 int     smtp_accept_queue_per_connection = 10;
1027 int     smtp_accept_reserve    = 0;
1028 uschar *smtp_active_hostname   = NULL;
1029 BOOL    smtp_authenticated     = FALSE;
1030 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1031                              "Exim $version_number $tod_full"
1032                              "\0<---------------Space to patch smtp_banner->";
1033 BOOL    smtp_batched_input     = FALSE;
1034 BOOL    smtp_check_spool_space = TRUE;
1035 uschar *smtp_cmd_argument      = NULL;
1036 uschar *smtp_cmd_buffer        = NULL;
1037 int     smtp_connect_backlog   = 20;
1038 double  smtp_delay_mail        = 0.0;
1039 double  smtp_delay_rcpt        = 0.0;
1040 BOOL    smtp_enforce_sync      = TRUE;
1041 FILE   *smtp_in                = NULL;
1042 BOOL    smtp_input             = FALSE;
1043 int     smtp_load_reserve      = -1;
1044 int     smtp_mailcmd_count     = 0;
1045 FILE   *smtp_out               = NULL;
1046 uschar *smtp_etrn_command      = NULL;
1047 BOOL    smtp_etrn_serialize    = TRUE;
1048 int     smtp_max_synprot_errors= 3;
1049 int     smtp_max_unknown_commands = 3;
1050 uschar *smtp_ratelimit_hosts   = NULL;
1051 uschar *smtp_ratelimit_mail    = NULL;
1052 uschar *smtp_ratelimit_rcpt    = NULL;
1053 uschar *smtp_read_error        = US"";
1054 int     smtp_receive_timeout   = 5*60;
1055 uschar *smtp_reserve_hosts     = NULL;
1056 BOOL    smtp_return_error_details = FALSE;
1057 int     smtp_rlm_base          = 0;
1058 double  smtp_rlm_factor        = 0.0;
1059 int     smtp_rlm_limit         = 0;
1060 int     smtp_rlm_threshold     = INT_MAX;
1061 int     smtp_rlr_base          = 0;
1062 double  smtp_rlr_factor        = 0.0;
1063 int     smtp_rlr_limit         = 0;
1064 int     smtp_rlr_threshold     = INT_MAX;
1065 BOOL    smtp_use_pipelining    = FALSE;
1066 BOOL    smtp_use_size          = FALSE;
1067
1068 #ifdef WITH_CONTENT_SCAN
1069 uschar *spamd_address          = US"127.0.0.1 783";
1070 uschar *spam_bar               = NULL;
1071 uschar *spam_report            = NULL;
1072 uschar *spam_score             = NULL;
1073 uschar *spam_score_int         = NULL;
1074 #endif
1075 #ifdef EXPERIMENTAL_SPF
1076 uschar *spf_header_comment     = NULL;
1077 uschar *spf_received           = NULL;
1078 uschar *spf_result             = NULL;
1079 uschar *spf_smtp_comment       = NULL;
1080 #endif
1081
1082 BOOL    split_spool_directory  = FALSE;
1083 uschar *spool_directory        = US SPOOL_DIRECTORY
1084                            "\0<--------------Space to patch spool_directory->";
1085 #ifdef EXPERIMENTAL_SRS
1086 uschar *srs_config             = NULL;
1087 uschar *srs_db_address         = NULL;
1088 uschar *srs_db_key             = NULL;
1089 int     srs_hashlength         = 6;
1090 int     srs_hashmin            = -1;
1091 int     srs_maxage             = 31;
1092 uschar *srs_orig_recipient     = NULL;
1093 uschar *srs_orig_sender        = NULL;
1094 uschar *srs_recipient          = NULL;
1095 uschar *srs_secrets            = NULL;
1096 uschar *srs_status             = NULL;
1097 BOOL    srs_usehash            = TRUE;
1098 BOOL    srs_usetimestamp       = TRUE;
1099 #endif
1100 int     string_datestamp_offset= -1;
1101 BOOL    strip_excess_angle_brackets = FALSE;
1102 BOOL    strip_trailing_dot     = FALSE;
1103 uschar *submission_domain      = NULL;
1104 BOOL    submission_mode        = FALSE;
1105 uschar *submission_name        = NULL;
1106 BOOL    suppress_local_fixups  = FALSE;
1107 BOOL    synchronous_delivery   = FALSE;
1108 BOOL    syslog_duplication     = TRUE;
1109 int     syslog_facility        = LOG_MAIL;
1110 uschar *syslog_processname     = US"exim";
1111 BOOL    syslog_timestamp       = TRUE;
1112 uschar *system_filter          = NULL;
1113
1114 uschar *system_filter_directory_transport = NULL;
1115 uschar *system_filter_file_transport = NULL;
1116 uschar *system_filter_pipe_transport = NULL;
1117 uschar *system_filter_reply_transport = NULL;
1118
1119 gid_t   system_filter_gid      = 0;
1120 BOOL    system_filter_gid_set  = FALSE;
1121 uid_t   system_filter_uid      = 0;
1122 BOOL    system_filter_uid_set  = FALSE;
1123 BOOL    system_filtering       = FALSE;
1124
1125 BOOL    tcp_nodelay            = TRUE;
1126 int     thismessage_size_limit = 0;
1127 int     timeout_frozen_after   = 0;
1128 BOOL    timestamps_utc         = FALSE;
1129
1130 transport_instance  *transports = NULL;
1131
1132 transport_instance  transport_defaults = {
1133     NULL,                     /* chain pointer */
1134     NULL,                     /* name */
1135     NULL,                     /* info */
1136     NULL,                     /* private options block pointer */
1137     NULL,                     /* driver name */
1138     NULL,                     /* setup entry point */
1139     1,                        /* batch_max */
1140     NULL,                     /* batch_id */
1141     NULL,                     /* home_dir */
1142     NULL,                     /* current_dir */
1143     TRUE,                     /* multi-domain */
1144     FALSE,                    /* overrides_hosts */
1145     100,                      /* max_addresses */
1146     500,                      /* connection_max_messages */
1147     FALSE,                    /* deliver_as_creator */
1148     FALSE,                    /* disable_logging */
1149     FALSE,                    /* initgroups */
1150     FALSE,                    /* uid_set */
1151     FALSE,                    /* gid_set */
1152     (uid_t)(-1),              /* uid */
1153     (gid_t)(-1),              /* gid */
1154     NULL,                     /* expand_uid */
1155     NULL,                     /* expand_gid */
1156     NULL,                     /* warn_message */
1157     NULL,                     /* shadow */
1158     NULL,                     /* shadow_condition */
1159     NULL,                     /* filter_command */
1160     NULL,                     /* add_headers */
1161     NULL,                     /* remove_headers */
1162     NULL,                     /* return_path */
1163     NULL,                     /* debug_string */
1164     NULL,                     /* message_size_limit */
1165     NULL,                     /* headers_rewrite */
1166     NULL,                     /* rewrite_rules */
1167     0,                        /* rewrite_existflags */
1168     300,                      /* filter_timeout */
1169     FALSE,                    /* body_only */
1170     FALSE,                    /* delivery_date_add */
1171     FALSE,                    /* envelope_to_add */
1172     FALSE,                    /* headers_only */
1173     FALSE,                    /* rcpt_include_affixes */
1174     FALSE,                    /* return_path_add */
1175     FALSE,                    /* return_output */
1176     FALSE,                    /* return_fail_output */
1177     FALSE,                    /* log_output */
1178     FALSE,                    /* log_fail_output */
1179     FALSE,                    /* log_defer_output */
1180     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1181                                  1 nor 0 so can detect unset */
1182 };
1183
1184 int     transport_count;
1185 uschar **transport_filter_argv  = NULL;
1186 int     transport_filter_timeout;
1187 BOOL    transport_filter_timed_out = FALSE;
1188 int     transport_write_timeout= 0;
1189
1190 tree_node  *tree_dns_fails     = NULL;
1191 tree_node  *tree_duplicates    = NULL;
1192 tree_node  *tree_nonrecipients = NULL;
1193 tree_node  *tree_unusable      = NULL;
1194
1195 BOOL    trusted_caller         = FALSE;
1196 gid_t  *trusted_groups         = NULL;
1197 uid_t  *trusted_users          = NULL;
1198 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1199
1200 uschar *unknown_login          = NULL;
1201 uschar *unknown_username       = NULL;
1202 uschar *untrusted_set_sender   = NULL;
1203
1204 /*  A regex for matching a "From_" line in an incoming message, in the form
1205
1206     From ph10 Fri Jan  5 12:35 GMT 1996
1207
1208 which  the "mail" commands send to the MTA (undocumented, of course), or in
1209 the  form
1210
1211     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1212
1213 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1214 Because  of variations in time formats, just match up to the minutes. That
1215 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1216 so  just require one digit for hours and minutes. The weekday is also absent
1217 in  some forms. */
1218
1219 uschar *uucp_from_pattern      = US
1220    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1221    "(?:"                                          /* Non-extracting bracket */
1222    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1223    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1224    ")"                                            /* End alternation */
1225    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1226
1227 uschar *uucp_from_sender       = US"$1";
1228
1229 uschar *warn_message_file      = NULL;
1230 uschar *warnmsg_delay          = NULL;
1231 uschar *warnmsg_recipients     = NULL;
1232 BOOL    write_rejectlog        = TRUE;
1233
1234 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1235 uschar *version_date           = US"?";
1236 uschar *version_cnumber        = US"????";
1237 uschar *version_string         = US"?";
1238
1239 int     warning_count          = 0;
1240
1241 /*  End of globals.c */