src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.42 2005/11/15 10:08:25 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2005 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_debug_print", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_debug_string)) },
  43   { "server_mail_auth_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  45   { "server_set_id", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, set_id)) }
  47 };
  48
  49 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  50
  51 /* An empty host aliases list. */
  52
  53 uschar *no_aliases             = NULL;
  54
  55
  56 /* For comments on these variables, see globals.h. I'm too idle to
  57 duplicate them here... */
  58
  59 #ifdef EXIM_PERL
  60 uschar *opt_perl_startup       = NULL;
  61 BOOL    opt_perl_at_start      = FALSE;
  62 BOOL    opt_perl_started       = FALSE;
  63 #endif
  64
  65 #ifdef EXPAND_DLFUNC
  66 tree_node *dlobj_anchor        = NULL;
  67 #endif
  68
  69 #ifdef LOOKUP_IBASE
  70 uschar *ibase_servers          = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_LDAP
  74 uschar *eldap_default_servers  = NULL;
  75 int     eldap_version          = -1;
  76 #endif
  77
  78 #ifdef LOOKUP_MYSQL
  79 uschar *mysql_servers          = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_ORACLE
  83 uschar *oracle_servers         = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_PGSQL
  87 uschar *pgsql_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 BOOL    tls_active             = -1;
 103 BOOL    tls_certificate_verified = FALSE;
 104 uschar *tls_cipher             = NULL;
 105 BOOL    tls_on_connect         = FALSE;
 106 uschar *tls_on_connect_ports   = NULL;
 107 uschar *tls_peerdn             = NULL;
 108
 109 #ifdef SUPPORT_TLS
 110 const pcre *regex_STARTTLS     = NULL;
 111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 112 uschar *tls_certificate        = NULL;
 113 uschar *tls_crl                = NULL;
 114 uschar *tls_dhparam            = NULL;
 115 BOOL    tls_offered            = FALSE;
 116 uschar *tls_privatekey         = NULL;
 117 BOOL    tls_remember_esmtp     = FALSE;
 118 uschar *tls_require_ciphers    = NULL;
 119 uschar *tls_try_verify_hosts   = NULL;
 120 uschar *tls_verify_certificates= NULL;
 121 uschar *tls_verify_hosts       = NULL;
 122 #endif
 123
 124
 125 /* Input-reading functions for messages, so we can use special ones for
 126 incoming TCP/IP. The defaults use stdin. We never need these for any
 127 stand-alone tests. */
 128
 129 #ifndef STAND_ALONE
 130 int (*receive_getc)(void)      = stdin_getc;
 131 int (*receive_ungetc)(int)     = stdin_ungetc;
 132 int (*receive_feof)(void)      = stdin_feof;
 133 int (*receive_ferror)(void)    = stdin_ferror;
 134 #endif
 135
 136
 137 /* List of per-address expansion variables for clearing and saving/restoring
 138 when verifying one address while routing/verifying another. We have to have
 139 the size explicit, because it is referenced from more than one module. */
 140
 141 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 142   &deliver_address_data,
 143   &deliver_domain,
 144   &deliver_domain_data,
 145   &deliver_domain_orig,
 146   &deliver_domain_parent,
 147   &deliver_localpart,
 148   &deliver_localpart_data,
 149   &deliver_localpart_orig,
 150   &deliver_localpart_parent,
 151   &deliver_localpart_prefix,
 152   &deliver_localpart_suffix,
 153   (uschar **)(&deliver_recipients),
 154   &deliver_host,
 155   &deliver_home,
 156   &address_file,
 157   &address_pipe,
 158   &self_hostname,
 159   NULL };
 160
 161 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 162
 163 /* General global variables */
 164
 165 tree_node *acl_anchor          = NULL;
 166 uschar *acl_not_smtp           = NULL;
 167 #ifdef WITH_CONTENT_SCAN
 168 uschar *acl_not_smtp_mime      = NULL;
 169 #endif
 170 uschar *acl_smtp_auth          = NULL;
 171 uschar *acl_smtp_connect       = NULL;
 172 uschar *acl_smtp_data          = NULL;
 173 uschar *acl_smtp_etrn          = NULL;
 174 uschar *acl_smtp_expn          = NULL;
 175 uschar *acl_smtp_helo          = NULL;
 176 uschar *acl_smtp_mail          = NULL;
 177 uschar *acl_smtp_mailauth      = NULL;
 178 #ifdef WITH_CONTENT_SCAN
 179 uschar *acl_smtp_mime          = NULL;
 180 #endif
 181 uschar *acl_smtp_predata       = NULL;
 182 uschar *acl_smtp_quit          = NULL;
 183 uschar *acl_smtp_rcpt          = NULL;
 184 uschar *acl_smtp_starttls      = NULL;
 185 uschar *acl_smtp_vrfy          = NULL;
 186 BOOL    acl_temp_details       = FALSE;
 187 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
 188 uschar *acl_verify_message     = NULL;
 189 header_line *acl_warn_headers  = NULL;
 190 string_item *acl_warn_logged   = NULL;
 191
 192 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 193 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 194
 195 uschar *acl_wherenames[]       = { US"RCPT",
 196                                    US"MAIL",
 197                                    US"PREDATA",
 198                                    US"MIME",
 199                                    US"DATA",
 200                                    US"non-SMTP",
 201                                    US"AUTH",
 202                                    US"connection",
 203                                    US"ETRN",
 204                                    US"EXPN",
 205                                    US"EHLO or HELO",
 206                                    US"MAILAUTH",
 207                                    US"QUIT",
 208                                    US"STARTTLS",
 209                                    US"VRFY"
 210                                  };
 211
 212 int     acl_wherecodes[]       = { 550,     /* RCPT */
 213                                    550,     /* MAIL */
 214                                    550,     /* PREDATA */
 215                                    550,     /* MIME */
 216                                    550,     /* DATA */
 217                                    0,       /* not SMTP; not relevant */
 218                                    503,     /* AUTH */
 219                                    550,     /* connect */
 220                                    458,     /* ETRN */
 221                                    550,     /* EXPN */
 222                                    550,     /* HELO/EHLO */
 223                                    0,       /* MAILAUTH; not relevant */
 224                                    0,       /* QUIT; not relevant */
 225                                    550,     /* STARTTLS */
 226                                    252      /* VRFY */
 227                                  };
 228
 229 BOOL    active_local_from_check = FALSE;
 230 BOOL    active_local_sender_retain = FALSE;
 231 BOOL    accept_8bitmime        = FALSE;
 232 address_item  *addr_duplicate  = NULL;
 233
 234 address_item address_defaults = {
 235   NULL,                 /* next */
 236   NULL,                 /* parent */
 237   NULL,                 /* first */
 238   NULL,                 /* dupof */
 239   NULL,                 /* start_router */
 240   NULL,                 /* router */
 241   NULL,                 /* transport */
 242   NULL,                 /* host_list */
 243   NULL,                 /* host_used */
 244   NULL,                 /* fallback_hosts */
 245   NULL,                 /* reply */
 246   NULL,                 /* retries */
 247   NULL,                 /* address */
 248   NULL,                 /* unique */
 249   NULL,                 /* cc_local_part */
 250   NULL,                 /* lc_local_part */
 251   NULL,                 /* local_part */
 252   NULL,                 /* prefix */
 253   NULL,                 /* suffix */
 254   NULL,                 /* domain */
 255   NULL,                 /* address_retry_key */
 256   NULL,                 /* domain_retry_key */
 257   NULL,                 /* current_dir */
 258   NULL,                 /* home_dir */
 259   NULL,                 /* message */
 260   NULL,                 /* user_message */
 261   NULL,                 /* onetime_parent */
 262   NULL,                 /* pipe_expandn */
 263   NULL,                 /* return_filename */
 264   NULL,                 /* self_hostname */
 265   NULL,                 /* shadow_message */
 266   #ifdef SUPPORT_TLS
 267   NULL,                 /* cipher */
 268   NULL,                 /* peerdn */
 269   #endif
 270   (uid_t)(-1),          /* uid */
 271   (gid_t)(-1),          /* gid */
 272   0,                    /* flags */
 273   { 0 },                /* domain_cache - any larger array should be zeroed */
 274   { 0 },                /* localpart_cache - ditto */
 275   -1,                   /* mode */
 276   0,                    /* more_errno */
 277   ERRNO_UNKNOWNERROR,   /* basic_errno */
 278   0,                    /* child_count */
 279   -1,                   /* return_file */
 280   SPECIAL_NONE,         /* special_action */
 281   DEFER,                /* transport_return */
 282   {                     /* fields that are propagated to children */
 283     NULL,               /* address_data */
 284     NULL,               /* domain_data */
 285     NULL,               /* localpart_data */
 286     NULL,               /* errors_address */
 287     NULL,               /* extra_headers */
 288     NULL,               /* remove_headers */
 289 #ifdef EXPERIMENTAL_SRS
 290     NULL,               /* srs_sender */
 291 #endif
 292   }
 293 };
 294
 295 uschar *address_file           = NULL;
 296 uschar *address_pipe           = NULL;
 297 BOOL    address_test_mode      = FALSE;
 298 tree_node *addresslist_anchor  = NULL;
 299 int     addresslist_count      = 0;
 300 gid_t  *admin_groups           = NULL;
 301 BOOL    admin_user             = FALSE;
 302 BOOL    allow_domain_literals  = FALSE;
 303 BOOL    allow_mx_to_ip         = FALSE;
 304 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 305 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 306 BOOL    allow_utf8_domains     = FALSE;
 307 uschar *authenticated_id       = NULL;
 308 uschar *authenticated_sender   = NULL;
 309 BOOL    authentication_failed  = FALSE;
 310 auth_instance  *auths          = NULL;
 311 uschar *auth_advertise_hosts   = US"*";
 312 auth_instance auth_defaults    = {
 313     NULL,                      /* chain pointer */
 314     NULL,                      /* name */
 315     NULL,                      /* info */
 316     NULL,                      /* private options block pointer */
 317     NULL,                      /* driver_name */
 318     NULL,                      /* advertise_condition */
 319     NULL,                      /* public_name */
 320     NULL,                      /* set_id */
 321     NULL,                      /* server_mail_auth_condition */
 322     NULL,                      /* server_debug_string */
 323     FALSE,                     /* client */
 324     FALSE,                     /* server */
 325     FALSE                      /* advertised */
 326 };
 327
 328 uschar *auth_defer_msg         = US"reason not recorded";
 329 uschar *auth_defer_user_msg    = US"";
 330 int     auto_thaw              = 0;
 331 #ifdef WITH_CONTENT_SCAN
 332 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 333 #endif
 334
 335 BOOL    background_daemon      = TRUE;
 336
 337 #if BASE_62 == 62
 338 uschar *base62_chars=
 339     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 340 #else
 341 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 342 #endif
 343
 344 uschar *bi_command             = NULL;
 345 uschar *big_buffer             = NULL;
 346 int     big_buffer_size        = BIG_BUFFER_SIZE;
 347 #ifdef EXPERIMENTAL_BRIGHTMAIL
 348 uschar *bmi_alt_location       = NULL;
 349 uschar *bmi_base64_tracker_verdict = NULL;
 350 uschar *bmi_base64_verdict     = NULL;
 351 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 352 int     bmi_deliver            = 1;
 353 int     bmi_run                = 0;
 354 uschar *bmi_verdicts           = NULL;
 355 #endif
 356 int     body_linecount         = 0;
 357 int     body_zerocount         = 0;
 358 uschar *bounce_message_file    = NULL;
 359 uschar *bounce_message_text    = NULL;
 360 uschar *bounce_recipient       = NULL;
 361 BOOL    bounce_return_body     = TRUE;
 362 BOOL    bounce_return_message  = TRUE;
 363 int     bounce_return_size_limit = 100*1024;
 364 uschar *bounce_sender_authentication = NULL;
 365 int     bsmtp_transaction_linecount = 0;
 366
 367 int     callout_cache_domain_positive_expire = 7*24*60*60;
 368 int     callout_cache_domain_negative_expire = 3*60*60;
 369 int     callout_cache_positive_expire = 24*60*60;
 370 int     callout_cache_negative_expire = 2*60*60;
 371 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 372 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 373 int     check_log_inodes       = 0;
 374 int     check_log_space        = 0;
 375 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_logging        = FALSE;
 486
 487 #ifdef EXPERIMENTAL_DOMAINKEYS
 488 uschar *dk_signing_domain      = NULL;
 489 uschar *dk_signing_selector    = NULL;
 490 int     dk_do_verify           = 0;
 491 #endif
 492
 493 uschar *dns_again_means_nonexist = NULL;
 494 int     dns_csa_search_limit   = 5;
 495 BOOL    dns_csa_use_reverse    = TRUE;
 496 uschar *dns_ipv4_lookup        = NULL;
 497 int     dns_retrans            = 0;
 498 int     dns_retry              = 0;
 499 uschar *dnslist_domain         = NULL;
 500 uschar *dnslist_text           = NULL;
 501 uschar *dnslist_value          = NULL;
 502 tree_node *domainlist_anchor   = NULL;
 503 int     domainlist_count       = 0;
 504 BOOL    dont_deliver           = FALSE;
 505 BOOL    dot_ends               = TRUE;
 506 BOOL    drop_cr                = FALSE;         /* No longer used */
 507
 508 BOOL    enable_dollar_recipients = FALSE;
 509 BOOL    envelope_to_remove     = TRUE;
 510 int     errno_quota            = ERRNO_QUOTA;
 511 uschar *errors_copy            = NULL;
 512 int     error_handling         = ERRORS_SENDER;
 513 uschar *errors_reply_to        = NULL;
 514 int     errors_sender_rc       = EXIT_FAILURE;
 515
 516 gid_t   exim_gid               = EXIM_GID;
 517 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 518 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 519                         "\0<---------------Space to patch exim_path->";
 520 uid_t   exim_uid               = EXIM_UID;
 521 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 522 int     expand_forbid          = 0;
 523 int     expand_nlength[EXPAND_MAXN+1];
 524 int     expand_nmax            = -1;
 525 uschar *expand_nstring[EXPAND_MAXN+1];
 526 BOOL    expand_string_forcedfail = FALSE;
 527 uschar *expand_string_message;
 528 BOOL    extract_addresses_remove_arguments = TRUE;
 529 uschar *extra_local_interfaces = NULL;
 530
 531 int     fake_response          = OK;
 532 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).";
 533 int     filter_n[FILTER_VARIABLE_COUNT];
 534 BOOL    filter_running         = FALSE;
 535 int     filter_sn[FILTER_VARIABLE_COUNT];
 536 int     filter_test            = FTEST_NONE;
 537 uschar *filter_test_sfile      = NULL;
 538 uschar *filter_test_ufile      = NULL;
 539 uschar *filter_thisaddress     = NULL;
 540 int     finduser_retries       = 0;
 541 #ifdef WITH_OLD_DEMIME
 542 uschar *found_extension        = NULL;
 543 #endif
 544 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 545 uschar *freeze_tell            = NULL;
 546 uschar *fudged_queue_times     = US"";
 547
 548 uschar *gecos_name             = NULL;
 549 uschar *gecos_pattern          = NULL;
 550 rewrite_rule  *global_rewrite_rules = NULL;
 551
 552 uschar *headers_charset        = US HEADERS_CHARSET;
 553 int     header_insert_maxlen   = 64 * 1024;
 554 header_line  *header_last      = NULL;
 555 header_line  *header_list      = NULL;
 556 int     header_maxsize         = HEADER_MAXSIZE;
 557 int     header_line_maxsize    = 0;
 558
 559 header_name header_names[] = {
 560   { US"bcc",            3, TRUE,  htype_bcc },
 561   { US"cc",             2, TRUE,  htype_cc },
 562   { US"date",           4, TRUE,  htype_date },
 563   { US"delivery-date", 13, FALSE, htype_delivery_date },
 564   { US"envelope-to",   11, FALSE, htype_envelope_to },
 565   { US"from",           4, TRUE,  htype_from },
 566   { US"message-id",    10, TRUE,  htype_id },
 567   { US"received",       8, FALSE, htype_received },
 568   { US"reply-to",       8, FALSE, htype_reply_to },
 569   { US"return-path",   11, FALSE, htype_return_path },
 570   { US"sender",         6, TRUE,  htype_sender },
 571   { US"subject",        7, FALSE, htype_subject },
 572   { US"to",             2, TRUE,  htype_to }
 573 };
 574
 575 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 576
 577 BOOL    header_rewritten       = FALSE;
 578 uschar *helo_accept_junk_hosts = NULL;
 579 uschar *helo_allow_chars       = US"";
 580 uschar *helo_lookup_domains    = US"@ : @[]";
 581 uschar *helo_try_verify_hosts  = NULL;
 582 BOOL    helo_verified          = FALSE;
 583 BOOL    helo_verify_failed     = FALSE;
 584 uschar *helo_verify_hosts      = NULL;
 585 uschar *hex_digits             = US"0123456789abcdef";
 586 uschar *hold_domains           = NULL;
 587 BOOL    host_checking          = FALSE;
 588 BOOL    host_checking_callout  = FALSE;
 589 uschar *host_data              = NULL;
 590 BOOL    host_find_failed_syntax= FALSE;
 591 uschar *host_lookup            = NULL;
 592 BOOL    host_lookup_deferred   = FALSE;
 593 BOOL    host_lookup_failed     = FALSE;
 594 uschar *host_lookup_order      = US"bydns:byaddr";
 595 uschar *host_lookup_msg        = US"";
 596 int     host_number            = 0;
 597 uschar *host_number_string     = NULL;
 598 uschar *host_reject_connection = NULL;
 599 tree_node *hostlist_anchor     = NULL;
 600 int     hostlist_count         = 0;
 601 uschar *hosts_treat_as_local   = NULL;
 602 uschar *hosts_connection_nolog = NULL;
 603
 604 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 605 BOOL    ignore_fromline_local  = FALSE;
 606 uschar *ignore_fromline_hosts  = NULL;
 607 uschar *interface_address      = NULL;
 608 int     interface_port         = -1;
 609 BOOL    is_inetd               = FALSE;
 610
 611 int     journal_fd             = -1;
 612
 613 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 614
 615 uschar *eldap_dn               = NULL;
 616 int     load_average           = -2;
 617 BOOL    local_error_message    = FALSE;
 618 BOOL    local_from_check       = TRUE;
 619 uschar *local_from_prefix      = NULL;
 620 uschar *local_from_suffix      = NULL;
 621
 622 #if HAVE_IPV6
 623 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 624 #else
 625 uschar *local_interfaces       = US"0.0.0.0";
 626 #endif
 627
 628 uschar *local_scan_data        = NULL;
 629 int     local_scan_timeout     = 5*60;
 630 BOOL    local_sender_retain    = FALSE;
 631 gid_t   local_user_gid         = (gid_t)(-1);
 632 uid_t   local_user_uid         = (uid_t)(-1);
 633
 634 tree_node *localpartlist_anchor= NULL;
 635 int     localpartlist_count    = 0;
 636 uschar *log_buffer             = NULL;
 637 unsigned int log_extra_selector = LX_default;
 638 uschar *log_file_path          = US LOG_FILE_PATH
 639                            "\0<--------------Space to patch log_file_path->";
 640
 641 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 642 are the ones that get put into log_write_selector. They can be used in calls to
 643 log_write() to test for the bit. The options with LX_xxx identifiers have
 644 values greater than 0x80000000 and are put int log_extra_selector (without the
 645 top bit). They are never used in calls to log_write(), but are tested
 646 independently. This separation became necessary when the number of log
 647 selectors was getting close to filling a 32-bit word. */
 648
 649 bit_table log_options[]        = {
 650   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 651   { US"address_rewrite",              L_address_rewrite },
 652   { US"all",                          L_all },
 653   { US"all_parents",                  L_all_parents },
 654   { US"arguments",                    LX_arguments },
 655   { US"connection_reject",            L_connection_reject },
 656   { US"delay_delivery",               L_delay_delivery },
 657   { US"deliver_time",                 LX_deliver_time },
 658   { US"delivery_size",                LX_delivery_size },
 659   { US"dnslist_defer",                L_dnslist_defer },
 660   { US"etrn",                         L_etrn },
 661   { US"host_lookup_failed",           L_host_lookup_failed },
 662   { US"ident_timeout",                LX_ident_timeout },
 663   { US"incoming_interface",           LX_incoming_interface },
 664   { US"incoming_port",                LX_incoming_port },
 665   { US"lost_incoming_connection",     L_lost_incoming_connection },
 666   { US"outgoing_port",                LX_outgoing_port },
 667   { US"queue_run",                    L_queue_run },
 668   { US"queue_time",                   LX_queue_time },
 669   { US"queue_time_overall",           LX_queue_time_overall },
 670   { US"received_recipients",          LX_received_recipients },
 671   { US"received_sender",              LX_received_sender },
 672   { US"rejected_header",              LX_rejected_header },
 673   { US"rejected_headers",             LX_rejected_header },
 674   { US"retry_defer",                  L_retry_defer },
 675   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 676   { US"sender_on_delivery",           LX_sender_on_delivery },
 677   { US"size_reject",                  L_size_reject },
 678   { US"skip_delivery",                L_skip_delivery },
 679   { US"smtp_confirmation",            LX_smtp_confirmation },
 680   { US"smtp_connection",              L_smtp_connection },
 681   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 682   { US"smtp_protocol_error",          L_smtp_protocol_error },
 683   { US"smtp_syntax_error",            L_smtp_syntax_error },
 684   { US"subject",                      LX_subject },
 685   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 686   { US"tls_cipher",                   LX_tls_cipher },
 687   { US"tls_peerdn",                   LX_tls_peerdn },
 688   { US"unknown_in_list",              LX_unknown_in_list }
 689 };
 690
 691 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 692 unsigned int log_write_selector= L_default;
 693 uschar *log_selector_string    = NULL;
 694 FILE   *log_stderr             = NULL;
 695 BOOL    log_testing_mode       = FALSE;
 696 BOOL    log_timezone           = FALSE;
 697 uschar *login_sender_address   = NULL;
 698 int     lookup_open_max        = 25;
 699 uschar *lookup_value           = NULL;
 700
 701 macro_item  *macros            = NULL;
 702 uschar *mailstore_basename     = NULL;
 703 #ifdef WITH_CONTENT_SCAN
 704 uschar *malware_name           = NULL;  /* Virus Name */
 705 #endif
 706 int     max_username_length    = 0;
 707 int     message_age            = 0;
 708 uschar *message_body           = NULL;
 709 uschar *message_body_end       = NULL;
 710 int     message_body_size      = 0;
 711 int     message_body_visible   = 500;
 712 int     message_ended          = END_NOTSTARTED;
 713 uschar *message_headers        = NULL;
 714 uschar *message_id;
 715 uschar *message_id_domain      = NULL;
 716 uschar *message_id_text        = NULL;
 717 struct timeval message_id_tv   = { 0, 0 };
 718 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 719 uschar *message_id_external;
 720 int     message_linecount      = 0;
 721 BOOL    message_logs           = TRUE;
 722 int     message_size           = 0;
 723 uschar *message_size_limit     = US"50M";
 724 uschar  message_subdir[2]      = { 0, 0 };
 725 uschar *message_reference      = NULL;
 726
 727 /* MIME ACL expandables */
 728 #ifdef WITH_CONTENT_SCAN
 729 int     mime_anomaly_level     = 0;
 730 uschar *mime_anomaly_text      = NULL;
 731 uschar *mime_boundary          = NULL;
 732 uschar *mime_charset           = NULL;
 733 uschar *mime_content_description = NULL;
 734 uschar *mime_content_disposition = NULL;
 735 uschar *mime_content_id        = NULL;
 736 unsigned int mime_content_size = 0;
 737 uschar *mime_content_transfer_encoding = NULL;
 738 uschar *mime_content_type      = NULL;
 739 uschar *mime_decoded_filename  = NULL;
 740 uschar *mime_filename          = NULL;
 741 int     mime_is_multipart      = 0;
 742 int     mime_is_coverletter    = 0;
 743 int     mime_is_rfc822         = 0;
 744 int     mime_part_count        = -1;
 745 #endif
 746
 747 BOOL    mua_wrapper            = FALSE;
 748
 749 uid_t  *never_users            = NULL;
 750 #ifdef WITH_CONTENT_SCAN
 751 BOOL    no_mbox_unspool        = FALSE;
 752 #endif
 753 BOOL    no_multiline_responses = FALSE;
 754
 755 uid_t   original_euid;
 756 gid_t   originator_gid;
 757 uschar *originator_login       = NULL;
 758 uschar *originator_name        = NULL;
 759 uid_t   originator_uid;
 760 uschar *override_local_interfaces = NULL;
 761 uschar *override_pid_file_path = NULL;
 762
 763 BOOL    parse_allow_group      = FALSE;
 764 BOOL    parse_found_group      = FALSE;
 765 uschar *percent_hack_domains   = NULL;
 766 uschar *pid_file_path          = US PID_FILE_PATH
 767                            "\0<--------------Space to patch pid_file_path->";
 768 uschar *pipelining_advertise_hosts = US"*";
 769 BOOL    preserve_message_logs  = FALSE;
 770 uschar *primary_hostname       = NULL;
 771 BOOL    print_topbitchars      = FALSE;
 772 uschar  process_info[PROCESS_INFO_SIZE];
 773 uschar *process_log_path       = NULL;
 774 BOOL    prod_requires_admin    = TRUE;
 775 uschar *prvscheck_address      = NULL;
 776 uschar *prvscheck_keynum       = NULL;
 777 uschar *prvscheck_result       = NULL;
 778
 779
 780 uschar *qualify_domain_recipient = NULL;
 781 uschar *qualify_domain_sender  = NULL;
 782 BOOL    queue_2stage           = FALSE;
 783 uschar *queue_domains          = NULL;
 784 int     queue_interval         = -1;
 785 BOOL    queue_list_requires_admin = TRUE;
 786 BOOL    queue_only             = FALSE;
 787 uschar *queue_only_file        = NULL;
 788 int     queue_only_load        = -1;
 789 BOOL    queue_only_override    = TRUE;
 790 BOOL    queue_only_policy      = FALSE;
 791 BOOL    queue_run_first_delivery = FALSE;
 792 BOOL    queue_run_force        = FALSE;
 793 BOOL    queue_run_in_order     = FALSE;
 794 BOOL    queue_run_local        = FALSE;
 795 int     queue_run_max          = 5;
 796 pid_t   queue_run_pid          = (pid_t)0;
 797 int     queue_run_pipe         = -1;
 798 BOOL    queue_running          = FALSE;
 799 BOOL    queue_smtp             = FALSE;
 800 uschar *queue_smtp_domains     = NULL;
 801
 802 unsigned int random_seed       = 0;
 803 tree_node *ratelimiters_cmd    = NULL;
 804 tree_node *ratelimiters_conn   = NULL;
 805 tree_node *ratelimiters_mail   = NULL;
 806 uschar *raw_active_hostname    = NULL;
 807 uschar *raw_sender             = NULL;
 808 uschar **raw_recipients        = NULL;
 809 int     raw_recipients_count   = 0;
 810
 811 int     rcpt_count             = 0;
 812 int     rcpt_fail_count        = 0;
 813 int     rcpt_defer_count       = 0;
 814 gid_t   real_gid;
 815 uid_t   real_uid;
 816 BOOL    really_exim            = TRUE;
 817 BOOL    receive_call_bombout   = FALSE;
 818 int     receive_linecount      = 0;
 819 int     receive_messagecount   = 0;
 820 int     receive_timeout        = 0;
 821 int     received_count         = 0;
 822 uschar *received_for           = NULL;
 823
 824 /*  This is the default text for Received headers generated by Exim. The
 825 date  will be automatically added on the end. */
 826
 827 uschar *received_header_text   = US
 828      "Received: "
 829      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 830      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 831      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 832      "by $primary_hostname "
 833      "${if def:received_protocol {with $received_protocol}} "
 834      #ifdef SUPPORT_TLS
 835      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 836      #endif
 837      "(Exim $version_number)\n\t"
 838      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 839      "id $message_exim_id"
 840      "${if def:received_for {\n\tfor $received_for}}"
 841      "\0<---------------Space to patch received_header_text->";
 842
 843 int     received_headers_max   = 30;
 844 uschar *received_protocol      = NULL;
 845 int     received_time          = 0;
 846 uschar *recipient_data         = NULL;
 847 uschar *recipient_unqualified_hosts = NULL;
 848 uschar *recipient_verify_failure = NULL;
 849 int     recipients_count       = 0;
 850 BOOL    recipients_discarded   = FALSE;
 851 recipient_item  *recipients_list = NULL;
 852 int     recipients_list_max    = 0;
 853 int     recipients_max         = 0;
 854 BOOL    recipients_max_reject  = FALSE;
 855 const pcre *regex_AUTH         = NULL;
 856 const pcre *regex_check_dns_names = NULL;
 857 const pcre *regex_From         = NULL;
 858 const pcre *regex_IGNOREQUOTA  = NULL;
 859 const pcre *regex_PIPELINING   = NULL;
 860 const pcre *regex_SIZE         = NULL;
 861 const pcre *regex_ismsgid      = NULL;
 862 #ifdef WITH_CONTENT_SCAN
 863 uschar *regex_match_string     = NULL;
 864 #endif
 865 int     remote_delivery_count  = 0;
 866 int     remote_max_parallel    = 2;
 867 uschar *remote_sort_domains    = NULL;
 868 int     retry_data_expire      = 7*24*60*60;
 869 int     retry_interval_max     = 24*60*60;
 870 int     retry_maximum_timeout  = 0;        /* set from retry config */
 871 retry_config  *retries         = NULL;
 872 uschar *return_path            = NULL;
 873 BOOL    return_path_remove     = TRUE;
 874 int     rewrite_existflags     = 0;
 875 uschar *rfc1413_hosts          = US"*";
 876 int     rfc1413_query_timeout  = 30;
 877 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 878 uid_t   root_uid               = ROOT_UID;
 879
 880 router_instance  *routers  = NULL;
 881 router_instance  router_defaults = {
 882     NULL,                      /* chain pointer */
 883     NULL,                      /* name */
 884     NULL,                      /* info */
 885     NULL,                      /* private options block pointer */
 886     NULL,                      /* driver name */
 887
 888     NULL,                      /* address_data */
 889 #ifdef EXPERIMENTAL_BRIGHTMAIL
 890     NULL,                      /* bmi_rule */
 891 #endif
 892     NULL,                      /* cannot_route_message */
 893     NULL,                      /* condition */
 894     NULL,                      /* current_directory */
 895     NULL,                      /* debug_string */
 896     NULL,                      /* domains */
 897     NULL,                      /* errors_to */
 898     NULL,                      /* expand_gid */
 899     NULL,                      /* expand_uid */
 900     NULL,                      /* expand_more */
 901     NULL,                      /* expand_unseen */
 902     NULL,                      /* extra_headers */
 903     NULL,                      /* fallback_hosts */
 904     NULL,                      /* home_directory */
 905     NULL,                      /* ignore_target_hosts */
 906     NULL,                      /* local_parts */
 907     NULL,                      /* pass_router_name */
 908     NULL,                      /* prefix */
 909     NULL,                      /* redirect_router_name */
 910     NULL,                      /* remove_headers */
 911     NULL,                      /* require_files */
 912     NULL,                      /* router_home_directory */
 913     US"freeze",                /* self */
 914     NULL,                      /* senders */
 915     NULL,                      /* suffix */
 916     NULL,                      /* translate_ip_address */
 917     NULL,                      /* transport_name */
 918
 919     TRUE,                      /* address_test */
 920 #ifdef EXPERIMENTAL_BRIGHTMAIL
 921     FALSE,                     /* bmi_deliver_alternate */
 922     FALSE,                     /* bmi_deliver_default */
 923     FALSE,                     /* bmi_dont_deliver */
 924 #endif
 925     TRUE,                      /* expn */
 926     FALSE,                     /* caseful_local_part */
 927     FALSE,                     /* check_local_user */
 928     FALSE,                     /* disable_logging */
 929     FALSE,                     /* fail_verify_recipient */
 930     FALSE,                     /* fail_verify_sender */
 931     FALSE,                     /* gid_set */
 932     FALSE,                     /* initgroups */
 933     TRUE_UNSET,                /* log_as_local */
 934     TRUE,                      /* more */
 935     FALSE,                     /* pass_on_timeout */
 936     FALSE,                     /* prefix_optional */
 937     TRUE,                      /* repeat_use */
 938     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 939     FALSE,                     /* same_domain_copy_routing */
 940     FALSE,                     /* self_rewrite */
 941     FALSE,                     /* suffix_optional */
 942     FALSE,                     /* verify_only */
 943     TRUE,                      /* verify_recipient */
 944     TRUE,                      /* verify_sender */
 945     FALSE,                     /* uid_set */
 946     FALSE,                     /* unseen */
 947
 948     self_freeze,               /* self_code */
 949     (uid_t)(-1),               /* uid */
 950     (gid_t)(-1),               /* gid */
 951
 952     NULL,                      /* fallback_hostlist */
 953     NULL,                      /* transport instance */
 954     NULL,                      /* pass_router */
 955     NULL                       /* redirect_router */
 956 };
 957
 958 ip_address_item *running_interfaces = NULL;
 959 BOOL    running_in_test_harness = FALSE;
 960
 961 /* This is a weird one. The following string gets patched in the binary by the
 962 script that sets up a copy of Exim for running in the test harness. It seems
 963 that compilers are now clever, and share constant strings if they can.
 964 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 965 make use of the end of this string in order to save space. So the patching then
 966 wrecks this. We default this optimization by adding some additional characters
 967 onto the end of the string. */
 968
 969 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 970
 971 int     runrc                  = 0;
 972
 973 uschar *search_error_message   = NULL;
 974 BOOL    search_find_defer      = FALSE;
 975 uschar *self_hostname          = NULL;
 976 uschar *sender_address         = NULL;
 977 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 978 uschar *sender_address_data    = NULL;
 979 BOOL    sender_address_forced  = FALSE;
 980 uschar *sender_address_unrewritten = NULL;
 981 uschar *sender_data            = NULL;
 982 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 983 uschar *sender_fullhost        = NULL;
 984 uschar *sender_helo_name       = NULL;
 985 uschar **sender_host_aliases   = &no_aliases;
 986 uschar *sender_host_address    = NULL;
 987 uschar *sender_host_authenticated = NULL;
 988 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 989 uschar *sender_host_name       = NULL;
 990 int     sender_host_port       = 0;
 991 BOOL    sender_host_notsocket  = FALSE;
 992 BOOL    sender_host_unknown    = FALSE;
 993 uschar *sender_ident           = NULL;
 994 BOOL    sender_local           = FALSE;
 995 BOOL    sender_name_forced     = FALSE;
 996 uschar *sender_rate            = NULL;
 997 uschar *sender_rate_limit      = NULL;
 998 uschar *sender_rate_period     = NULL;
 999 uschar *sender_rcvhost         = NULL;
1000 BOOL    sender_set_untrusted   = FALSE;
1001 uschar *sender_unqualified_hosts = NULL;
1002 uschar *sender_verify_failure = NULL;
1003 address_item *sender_verified_list  = NULL;
1004 address_item *sender_verified_failed = NULL;
1005 int     sender_verified_rc     = -1;
1006 BOOL    sender_verified_responded = FALSE;
1007 volatile  BOOL sigalrm_seen    = FALSE;
1008 uschar **sighup_argv           = NULL;
1009 int     smtp_accept_count      = 0;
1010 BOOL    smtp_accept_keepalive  = TRUE;
1011 int     smtp_accept_max        = 20;
1012 int     smtp_accept_max_nonmail= 10;
1013 uschar *smtp_accept_max_nonmail_hosts = US"*";
1014 int     smtp_accept_max_per_connection = 1000;
1015 uschar *smtp_accept_max_per_host = NULL;
1016 int     smtp_accept_queue      = 0;
1017 int     smtp_accept_queue_per_connection = 10;
1018 int     smtp_accept_reserve    = 0;
1019 uschar *smtp_active_hostname   = NULL;
1020 BOOL    smtp_authenticated     = FALSE;
1021 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1022                              "Exim $version_number $tod_full"
1023                              "\0<---------------Space to patch smtp_banner->";
1024 BOOL    smtp_batched_input     = FALSE;
1025 BOOL    smtp_check_spool_space = TRUE;
1026 uschar *smtp_cmd_argument      = NULL;
1027 uschar *smtp_cmd_buffer        = NULL;
1028 int     smtp_connect_backlog   = 20;
1029 double  smtp_delay_mail        = 0.0;
1030 double  smtp_delay_rcpt        = 0.0;
1031 BOOL    smtp_enforce_sync      = TRUE;
1032 FILE   *smtp_in                = NULL;
1033 BOOL    smtp_input             = FALSE;
1034 int     smtp_load_reserve      = -1;
1035 int     smtp_mailcmd_count     = 0;
1036 FILE   *smtp_out               = NULL;
1037 uschar *smtp_etrn_command      = NULL;
1038 BOOL    smtp_etrn_serialize    = TRUE;
1039 int     smtp_max_synprot_errors= 3;
1040 int     smtp_max_unknown_commands = 3;
1041 uschar *smtp_ratelimit_hosts   = NULL;
1042 uschar *smtp_ratelimit_mail    = NULL;
1043 uschar *smtp_ratelimit_rcpt    = NULL;
1044 uschar *smtp_read_error        = US"";
1045 int     smtp_receive_timeout   = 5*60;
1046 uschar *smtp_reserve_hosts     = NULL;
1047 BOOL    smtp_return_error_details = FALSE;
1048 int     smtp_rlm_base          = 0;
1049 double  smtp_rlm_factor        = 0.0;
1050 int     smtp_rlm_limit         = 0;
1051 int     smtp_rlm_threshold     = INT_MAX;
1052 int     smtp_rlr_base          = 0;
1053 double  smtp_rlr_factor        = 0.0;
1054 int     smtp_rlr_limit         = 0;
1055 int     smtp_rlr_threshold     = INT_MAX;
1056 BOOL    smtp_use_pipelining    = FALSE;
1057 BOOL    smtp_use_size          = FALSE;
1058
1059 #ifdef WITH_CONTENT_SCAN
1060 uschar *spamd_address          = US"127.0.0.1 783";
1061 uschar *spam_bar               = NULL;
1062 uschar *spam_report            = NULL;
1063 uschar *spam_score             = NULL;
1064 uschar *spam_score_int         = NULL;
1065 #endif
1066 #ifdef EXPERIMENTAL_SPF
1067 uschar *spf_header_comment     = NULL;
1068 uschar *spf_received           = NULL;
1069 uschar *spf_result             = NULL;
1070 uschar *spf_smtp_comment       = NULL;
1071 #endif
1072
1073 BOOL    split_spool_directory  = FALSE;
1074 uschar *spool_directory        = US SPOOL_DIRECTORY
1075                            "\0<--------------Space to patch spool_directory->";
1076 #ifdef EXPERIMENTAL_SRS
1077 uschar *srs_config             = NULL;
1078 uschar *srs_db_address         = NULL;
1079 uschar *srs_db_key             = NULL;
1080 int     srs_hashlength         = 6;
1081 int     srs_hashmin            = -1;
1082 int     srs_maxage             = 31;
1083 uschar *srs_orig_recipient     = NULL;
1084 uschar *srs_orig_sender        = NULL;
1085 uschar *srs_recipient          = NULL;
1086 uschar *srs_secrets            = NULL;
1087 uschar *srs_status             = NULL;
1088 BOOL    srs_usehash            = TRUE;
1089 BOOL    srs_usetimestamp       = TRUE;
1090 #endif
1091 int     string_datestamp_offset= -1;
1092 BOOL    strip_excess_angle_brackets = FALSE;
1093 BOOL    strip_trailing_dot     = FALSE;
1094 uschar *submission_domain      = NULL;
1095 BOOL    submission_mode        = FALSE;
1096 uschar *submission_name        = NULL;
1097 BOOL    suppress_local_fixups  = FALSE;
1098 BOOL    synchronous_delivery   = FALSE;
1099 BOOL    syslog_duplication     = TRUE;
1100 int     syslog_facility        = LOG_MAIL;
1101 uschar *syslog_processname     = US"exim";
1102 BOOL    syslog_timestamp       = TRUE;
1103 uschar *system_filter          = NULL;
1104
1105 uschar *system_filter_directory_transport = NULL;
1106 uschar *system_filter_file_transport = NULL;
1107 uschar *system_filter_pipe_transport = NULL;
1108 uschar *system_filter_reply_transport = NULL;
1109
1110 gid_t   system_filter_gid      = 0;
1111 BOOL    system_filter_gid_set  = FALSE;
1112 uid_t   system_filter_uid      = 0;
1113 BOOL    system_filter_uid_set  = FALSE;
1114 BOOL    system_filtering       = FALSE;
1115
1116 BOOL    tcp_nodelay            = TRUE;
1117 int     thismessage_size_limit = 0;
1118 int     timeout_frozen_after   = 0;
1119 BOOL    timestamps_utc         = FALSE;
1120
1121 transport_instance  *transports = NULL;
1122
1123 transport_instance  transport_defaults = {
1124     NULL,                     /* chain pointer */
1125     NULL,                     /* name */
1126     NULL,                     /* info */
1127     NULL,                     /* private options block pointer */
1128     NULL,                     /* driver name */
1129     NULL,                     /* setup entry point */
1130     1,                        /* batch_max */
1131     NULL,                     /* batch_id */
1132     NULL,                     /* home_dir */
1133     NULL,                     /* current_dir */
1134     TRUE,                     /* multi-domain */
1135     FALSE,                    /* overrides_hosts */
1136     100,                      /* max_addresses */
1137     500,                      /* connection_max_messages */
1138     FALSE,                    /* deliver_as_creator */
1139     FALSE,                    /* disable_logging */
1140     FALSE,                    /* initgroups */
1141     FALSE,                    /* uid_set */
1142     FALSE,                    /* gid_set */
1143     (uid_t)(-1),              /* uid */
1144     (gid_t)(-1),              /* gid */
1145     NULL,                     /* expand_uid */
1146     NULL,                     /* expand_gid */
1147     NULL,                     /* warn_message */
1148     NULL,                     /* shadow */
1149     NULL,                     /* shadow_condition */
1150     NULL,                     /* filter_command */
1151     NULL,                     /* add_headers */
1152     NULL,                     /* remove_headers */
1153     NULL,                     /* return_path */
1154     NULL,                     /* debug_string */
1155     NULL,                     /* message_size_limit */
1156     NULL,                     /* headers_rewrite */
1157     NULL,                     /* rewrite_rules */
1158     0,                        /* rewrite_existflags */
1159     300,                      /* filter_timeout */
1160     FALSE,                    /* body_only */
1161     FALSE,                    /* delivery_date_add */
1162     FALSE,                    /* envelope_to_add */
1163     FALSE,                    /* headers_only */
1164     FALSE,                    /* rcpt_include_affixes */
1165     FALSE,                    /* return_path_add */
1166     FALSE,                    /* return_output */
1167     FALSE,                    /* return_fail_output */
1168     FALSE,                    /* log_output */
1169     FALSE,                    /* log_fail_output */
1170     FALSE,                    /* log_defer_output */
1171     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1172                                  1 nor 0 so can detect unset */
1173 };
1174
1175 int     transport_count;
1176 uschar **transport_filter_argv  = NULL;
1177 int     transport_filter_timeout;
1178 BOOL    transport_filter_timed_out = FALSE;
1179 int     transport_write_timeout= 0;
1180
1181 tree_node  *tree_dns_fails     = NULL;
1182 tree_node  *tree_duplicates    = NULL;
1183 tree_node  *tree_nonrecipients = NULL;
1184 tree_node  *tree_unusable      = NULL;
1185
1186 BOOL    trusted_caller         = FALSE;
1187 gid_t  *trusted_groups         = NULL;
1188 uid_t  *trusted_users          = NULL;
1189 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1190
1191 uschar *unknown_login          = NULL;
1192 uschar *unknown_username       = NULL;
1193 uschar *untrusted_set_sender   = NULL;
1194
1195 /*  A regex for matching a "From_" line in an incoming message, in the form
1196
1197     From ph10 Fri Jan  5 12:35 GMT 1996
1198
1199 which  the "mail" commands send to the MTA (undocumented, of course), or in
1200 the  form
1201
1202     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1203
1204 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1205 Because  of variations in time formats, just match up to the minutes. That
1206 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1207 so  just require one digit for hours and minutes. The weekday is also absent
1208 in  some forms. */
1209
1210 uschar *uucp_from_pattern      = US
1211    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1212    "(?:"                                          /* Non-extracting bracket */
1213    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1214    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1215    ")"                                            /* End alternation */
1216    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1217
1218 uschar *uucp_from_sender       = US"$1";
1219
1220 uschar *warn_message_file      = NULL;
1221 uschar *warnmsg_delay          = NULL;
1222 uschar *warnmsg_recipients     = NULL;
1223 BOOL    write_rejectlog        = TRUE;
1224
1225 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1226 uschar *version_date           = US"?";
1227 uschar *version_cnumber        = US"????";
1228 uschar *version_string         = US"?";
1229
1230 int     warning_count          = 0;
1231
1232 /*  End of globals.c */