src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.30 2005/06/21 14:14:55 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 SUPPORT_MOVE_FROZEN_MESSAGES
  91 BOOL    move_frozen_messages   = FALSE;
  92 #endif
  93
  94 /* These variables are outside the #ifdef because it keeps the code less
  95 cluttered in several places (e.g. during logging) if we can always refer to
  96 them. Also, the tls_ variables are now always visible. */
  97
  98 BOOL    tls_active             = -1;
  99 BOOL    tls_certificate_verified = FALSE;
 100 uschar *tls_cipher             = NULL;
 101 BOOL    tls_on_connect         = FALSE;
 102 uschar *tls_on_connect_ports   = NULL;
 103 uschar *tls_peerdn             = NULL;
 104
 105 #ifdef SUPPORT_TLS
 106 const pcre *regex_STARTTLS     = NULL;
 107 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 108 uschar *tls_certificate        = NULL;
 109 uschar *tls_crl                = NULL;
 110 uschar *tls_dhparam            = NULL;
 111 BOOL    tls_offered            = FALSE;
 112 uschar *tls_privatekey         = NULL;
 113 BOOL    tls_remember_esmtp     = FALSE;
 114 uschar *tls_require_ciphers    = NULL;
 115 uschar *tls_try_verify_hosts   = NULL;
 116 uschar *tls_verify_certificates= NULL;
 117 uschar *tls_verify_hosts       = NULL;
 118 #endif
 119
 120
 121 /* Input-reading functions for messages, so we can use special ones for
 122 incoming TCP/IP. The defaults use stdin. We never need these for any
 123 stand-alone tests. */
 124
 125 #ifndef STAND_ALONE
 126 int (*receive_getc)(void)      = stdin_getc;
 127 int (*receive_ungetc)(int)     = stdin_ungetc;
 128 int (*receive_feof)(void)      = stdin_feof;
 129 int (*receive_ferror)(void)    = stdin_ferror;
 130 #endif
 131
 132
 133 /* List of per-address expansion variables for clearing and saving/restoring
 134 when verifying one address while routing/verifying another. We have to have
 135 the size explicit, because it is referenced from more than one module. */
 136
 137 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 138   &deliver_address_data,
 139   &deliver_domain,
 140   &deliver_domain_data,
 141   &deliver_domain_orig,
 142   &deliver_domain_parent,
 143   &deliver_localpart,
 144   &deliver_localpart_data,
 145   &deliver_localpart_orig,
 146   &deliver_localpart_parent,
 147   &deliver_localpart_prefix,
 148   &deliver_localpart_suffix,
 149   (uschar **)(&deliver_recipients),
 150   &deliver_host,
 151   &deliver_home,
 152   &address_file,
 153   &address_pipe,
 154   &self_hostname,
 155   NULL };
 156
 157 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 158
 159 /* General global variables */
 160
 161 tree_node *acl_anchor          = NULL;
 162 uschar *acl_not_smtp           = NULL;
 163 #ifdef WITH_CONTENT_SCAN
 164 uschar *acl_not_smtp_mime      = NULL;
 165 #endif
 166 uschar *acl_smtp_auth          = NULL;
 167 uschar *acl_smtp_connect       = NULL;
 168 uschar *acl_smtp_data          = NULL;
 169 uschar *acl_smtp_etrn          = NULL;
 170 uschar *acl_smtp_expn          = NULL;
 171 uschar *acl_smtp_helo          = NULL;
 172 uschar *acl_smtp_mail          = NULL;
 173 uschar *acl_smtp_mailauth      = NULL;
 174 #ifdef WITH_CONTENT_SCAN
 175 uschar *acl_smtp_mime          = NULL;
 176 #endif
 177 uschar *acl_smtp_predata       = NULL;
 178 uschar *acl_smtp_quit          = NULL;
 179 uschar *acl_smtp_rcpt          = NULL;
 180 uschar *acl_smtp_starttls      = NULL;
 181 uschar *acl_smtp_vrfy          = NULL;
 182 BOOL    acl_temp_details       = FALSE;
 183 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
 184 uschar *acl_verify_message     = NULL;
 185 header_line *acl_warn_headers  = NULL;
 186 string_item *acl_warn_logged   = NULL;
 187
 188 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 189 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 190
 191 uschar *acl_wherenames[]       = { US"RCPT",
 192                                    US"MAIL",
 193                                    US"PREDATA",
 194                                    US"MIME",
 195                                    US"DATA",
 196                                    US"non-SMTP",
 197                                    US"AUTH",
 198                                    US"connection",
 199                                    US"ETRN",
 200                                    US"EXPN",
 201                                    US"EHLO or HELO",
 202                                    US"MAILAUTH",
 203                                    US"QUIT",
 204                                    US"STARTTLS",
 205                                    US"VRFY"
 206                                  };
 207
 208 int     acl_wherecodes[]       = { 550,     /* RCPT */
 209                                    550,     /* MAIL */
 210                                    550,     /* PREDATA */
 211                                    550,     /* MIME */
 212                                    550,     /* DATA */
 213                                    0,       /* not SMTP; not relevant */
 214                                    503,     /* AUTH */
 215                                    550,     /* connect */
 216                                    458,     /* ETRN */
 217                                    550,     /* EXPN */
 218                                    550,     /* HELO/EHLO */
 219                                    0,       /* MAILAUTH; not relevant */
 220                                    0,       /* QUIT; not relevant */
 221                                    550,     /* STARTTLS */
 222                                    252      /* VRFY */
 223                                  };
 224
 225 BOOL    active_local_from_check = FALSE;
 226 BOOL    active_local_sender_retain = FALSE;
 227 BOOL    accept_8bitmime        = FALSE;
 228 address_item  *addr_duplicate  = NULL;
 229
 230 address_item address_defaults = {
 231   NULL,                 /* next */
 232   NULL,                 /* parent */
 233   NULL,                 /* first */
 234   NULL,                 /* dupof */
 235   NULL,                 /* start_router */
 236   NULL,                 /* router */
 237   NULL,                 /* transport */
 238   NULL,                 /* host_list */
 239   NULL,                 /* host_used */
 240   NULL,                 /* fallback_hosts */
 241   NULL,                 /* reply */
 242   NULL,                 /* retries */
 243   NULL,                 /* address */
 244   NULL,                 /* unique */
 245   NULL,                 /* cc_local_part */
 246   NULL,                 /* lc_local_part */
 247   NULL,                 /* local_part */
 248   NULL,                 /* prefix */
 249   NULL,                 /* suffix */
 250   NULL,                 /* domain */
 251   NULL,                 /* address_retry_key */
 252   NULL,                 /* domain_retry_key */
 253   NULL,                 /* current_dir */
 254   NULL,                 /* home_dir */
 255   NULL,                 /* message */
 256   NULL,                 /* user_message */
 257   NULL,                 /* onetime_parent */
 258   NULL,                 /* pipe_expandn */
 259   NULL,                 /* return_filename */
 260   NULL,                 /* self_hostname */
 261   NULL,                 /* shadow_message */
 262   #ifdef SUPPORT_TLS
 263   NULL,                 /* cipher */
 264   NULL,                 /* peerdn */
 265   #endif
 266   (uid_t)(-1),          /* uid */
 267   (gid_t)(-1),          /* gid */
 268   0,                    /* flags */
 269   { 0 },                /* domain_cache - any larger array should be zeroed */
 270   { 0 },                /* localpart_cache - ditto */
 271   -1,                   /* mode */
 272   0,                    /* more_errno */
 273   ERRNO_UNKNOWNERROR,   /* basic_errno */
 274   0,                    /* child_count */
 275   -1,                   /* return_file */
 276   SPECIAL_NONE,         /* special_action */
 277   DEFER,                /* transport_return */
 278   {                     /* fields that are propagated to children */
 279     NULL,               /* address_data */
 280     NULL,               /* domain_data */
 281     NULL,               /* localpart_data */
 282     NULL,               /* errors_address */
 283     NULL,               /* extra_headers */
 284     NULL,               /* remove_headers */
 285 #ifdef EXPERIMENTAL_SRS
 286     NULL,               /* srs_sender */
 287 #endif
 288   }
 289 };
 290
 291 uschar *address_file           = NULL;
 292 uschar *address_pipe           = NULL;
 293 BOOL    address_test_mode      = FALSE;
 294 tree_node *addresslist_anchor  = NULL;
 295 int     addresslist_count      = 0;
 296 gid_t  *admin_groups           = NULL;
 297 BOOL    admin_user             = FALSE;
 298 BOOL    allow_domain_literals  = FALSE;
 299 BOOL    allow_mx_to_ip         = FALSE;
 300 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 301 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 302 BOOL    allow_utf8_domains     = FALSE;
 303 uschar *authenticated_id       = NULL;
 304 uschar *authenticated_sender   = NULL;
 305 BOOL    authentication_failed  = FALSE;
 306 auth_instance  *auths          = NULL;
 307 uschar *auth_advertise_hosts   = US"*";
 308 auth_instance auth_defaults    = {
 309     NULL,                      /* chain pointer */
 310     NULL,                      /* name */
 311     NULL,                      /* info */
 312     NULL,                      /* private options block pointer */
 313     NULL,                      /* driver_name */
 314     NULL,                      /* advertise_condition */
 315     NULL,                      /* public_name */
 316     NULL,                      /* set_id */
 317     NULL,                      /* server_mail_auth_condition */
 318     NULL,                      /* server_debug_string */
 319     FALSE,                     /* client */
 320     FALSE,                     /* server */
 321     FALSE                      /* advertised */
 322 };
 323
 324 uschar *auth_defer_msg         = US"reason not recorded";
 325 uschar *auth_defer_user_msg    = US"";
 326 int     auto_thaw              = 0;
 327 #ifdef WITH_CONTENT_SCAN
 328 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 329 #endif
 330
 331 BOOL    background_daemon      = TRUE;
 332 uschar *base62_chars=
 333     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 334 uschar *bi_command             = NULL;
 335 uschar *big_buffer             = NULL;
 336 int     big_buffer_size        = BIG_BUFFER_SIZE;
 337 #ifdef EXPERIMENTAL_BRIGHTMAIL
 338 uschar *bmi_alt_location       = NULL;
 339 uschar *bmi_base64_tracker_verdict = NULL;
 340 uschar *bmi_base64_verdict     = NULL;
 341 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 342 int     bmi_deliver            = 1;
 343 int     bmi_run                = 0;
 344 uschar *bmi_verdicts           = NULL;
 345 #endif
 346 int     body_linecount         = 0;
 347 int     body_zerocount         = 0;
 348 uschar *bounce_message_file    = NULL;
 349 uschar *bounce_message_text    = NULL;
 350 uschar *bounce_recipient       = NULL;
 351 BOOL    bounce_return_body     = TRUE;
 352 BOOL    bounce_return_message  = TRUE;
 353 int     bounce_return_size_limit = 100*1024;
 354 uschar *bounce_sender_authentication = NULL;
 355 int     bsmtp_transaction_linecount = 0;
 356
 357 int     callout_cache_domain_positive_expire = 7*24*60*60;
 358 int     callout_cache_domain_negative_expire = 3*60*60;
 359 int     callout_cache_positive_expire = 24*60*60;
 360 int     callout_cache_negative_expire = 2*60*60;
 361 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 362 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 363 int     check_log_inodes       = 0;
 364 int     check_log_space        = 0;
 365 int     check_spool_inodes     = 0;
 366 int     check_spool_space      = 0;
 367 int     clmacro_count          = 0;
 368 uschar *clmacros[MAX_CLMACROS];
 369 BOOL    config_changed         = FALSE;
 370 FILE   *config_file            = NULL;
 371 uschar *config_filename        = NULL;
 372 int     config_lineno          = 0;
 373 #ifdef CONFIGURE_GROUP
 374 gid_t   config_gid             = CONFIGURE_GROUP;
 375 #endif
 376 uschar *config_main_filelist   = US CONFIGURE_FILE
 377                          "\0<-----------Space to patch configure_filename->";
 378 uschar *config_main_filename   = NULL;
 379
 380 #ifdef CONFIGURE_OWNER
 381 uid_t   config_uid             = CONFIGURE_OWNER;
 382 #endif
 383
 384 int     connection_max_messages= -1;
 385 uschar *continue_hostname      = NULL;
 386 uschar *continue_host_address  = NULL;
 387 BOOL    continue_more          = FALSE;
 388 int     continue_sequence      = 1;
 389 uschar *continue_transport     = NULL;
 390
 391 uschar *csa_status             = NULL;
 392
 393 BOOL    daemon_listen          = FALSE;
 394 uschar *daemon_smtp_port       = US"smtp";
 395 int     daemon_startup_retries = 9;
 396 int     daemon_startup_sleep   = 30;
 397 BOOL    debug_daemon           = FALSE;
 398 int     debug_fd               = -1;
 399 FILE   *debug_file             = NULL;
 400 bit_table debug_options[]      = {
 401   { US"acl",            D_acl },
 402   { US"all",            D_all },
 403   { US"auth",           D_auth },
 404   { US"deliver",        D_deliver },
 405   { US"dns",            D_dns },
 406   { US"dnsbl",          D_dnsbl },
 407   { US"exec",           D_exec },
 408   { US"expand",         D_expand },
 409   { US"filter",         D_filter },
 410   { US"hints_lookup",   D_hints_lookup },
 411   { US"host_lookup",    D_host_lookup },
 412   { US"ident",          D_ident },
 413   { US"interface",      D_interface },
 414   { US"lists",          D_lists },
 415   { US"load",           D_load },
 416   { US"local_scan",     D_local_scan },
 417   { US"lookup",         D_lookup },
 418   { US"memory",         D_memory },
 419   { US"pid",            D_pid },
 420   { US"process_info",   D_process_info },
 421   { US"queue_run",      D_queue_run },
 422   { US"receive",        D_receive },
 423   { US"resolver",       D_resolver },
 424   { US"retry",          D_retry },
 425   { US"rewrite",        D_rewrite },
 426   { US"route",          D_route },
 427   { US"timestamp",      D_timestamp },
 428   { US"tls",            D_tls },
 429   { US"transport",      D_transport },
 430   { US"uid",            D_uid },
 431   { US"verify",         D_verify }
 432 };
 433 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 434 unsigned int debug_selector    = 0;
 435 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 436 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 437 BOOL    delivery_date_remove   = TRUE;
 438 uschar *deliver_address_data   = NULL;
 439 int     deliver_datafile       = -1;
 440 uschar *deliver_domain         = NULL;
 441 uschar *deliver_domain_data    = NULL;
 442 uschar *deliver_domain_orig    = NULL;
 443 uschar *deliver_domain_parent  = NULL;
 444 BOOL    deliver_drop_privilege = FALSE;
 445 BOOL    deliver_firsttime      = FALSE;
 446 BOOL    deliver_force          = FALSE;
 447 BOOL    deliver_freeze         = FALSE;
 448 int     deliver_frozen_at      = 0;
 449 uschar *deliver_home           = NULL;
 450 uschar *deliver_host           = NULL;
 451 uschar *deliver_host_address   = NULL;
 452 uschar *deliver_in_buffer      = NULL;
 453 ino_t   deliver_inode          = 0;
 454 uschar *deliver_localpart      = NULL;
 455 uschar *deliver_localpart_data = NULL;
 456 uschar *deliver_localpart_orig = NULL;
 457 uschar *deliver_localpart_parent = NULL;
 458 uschar *deliver_localpart_prefix = NULL;
 459 uschar *deliver_localpart_suffix = NULL;
 460 BOOL    deliver_force_thaw     = FALSE;
 461 BOOL    deliver_manual_thaw    = FALSE;
 462 uschar *deliver_out_buffer     = NULL;
 463 int     deliver_queue_load_max = -1;
 464 address_item  *deliver_recipients = NULL;
 465 uschar *deliver_selectstring   = NULL;
 466 BOOL    deliver_selectstring_regex = FALSE;
 467 uschar *deliver_selectstring_sender = NULL;
 468 BOOL    deliver_selectstring_sender_regex = FALSE;
 469 #ifdef WITH_OLD_DEMIME
 470 int     demime_errorlevel      = 0;
 471 int     demime_ok              = 0;
 472 uschar *demime_reason          = NULL;
 473 #endif
 474 BOOL    disable_logging        = FALSE;
 475
 476 #ifdef EXPERIMENTAL_DOMAINKEYS
 477 uschar *dk_signing_domain      = NULL;
 478 uschar *dk_signing_selector    = NULL;
 479 int     dk_do_verify           = 0;
 480 #endif
 481
 482 uschar *dns_again_means_nonexist = NULL;
 483 int     dns_csa_search_limit   = 5;
 484 BOOL    dns_csa_use_reverse    = TRUE;
 485 uschar *dns_ipv4_lookup        = NULL;
 486 int     dns_retrans            = 0;
 487 int     dns_retry              = 0;
 488 uschar *dnslist_domain         = NULL;
 489 uschar *dnslist_text           = NULL;
 490 uschar *dnslist_value          = NULL;
 491 tree_node *domainlist_anchor   = NULL;
 492 int     domainlist_count       = 0;
 493 BOOL    dont_deliver           = FALSE;
 494 BOOL    dot_ends               = TRUE;
 495 BOOL    drop_cr                = FALSE;         /* No longer used */
 496
 497 BOOL    enable_dollar_recipients = FALSE;
 498 BOOL    envelope_to_remove     = TRUE;
 499 int     errno_quota            = ERRNO_QUOTA;
 500 uschar *errors_copy            = NULL;
 501 int     error_handling         = ERRORS_SENDER;
 502 uschar *errors_reply_to        = NULL;
 503 int     errors_sender_rc       = EXIT_FAILURE;
 504
 505 gid_t   exim_gid               = EXIM_GID;
 506 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 507 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 508                         "\0<---------------Space to patch exim_path->";
 509 uid_t   exim_uid               = EXIM_UID;
 510 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 511 int     expand_forbid          = 0;
 512 int     expand_nlength[EXPAND_MAXN+1];
 513 int     expand_nmax            = -1;
 514 uschar *expand_nstring[EXPAND_MAXN+1];
 515 BOOL    expand_string_forcedfail = FALSE;
 516 uschar *expand_string_message;
 517 BOOL    extract_addresses_remove_arguments = TRUE;
 518 uschar *extra_local_interfaces = NULL;
 519
 520 int     fake_response          = OK;
 521 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).";
 522 int     filter_n[FILTER_VARIABLE_COUNT];
 523 BOOL    filter_running         = FALSE;
 524 int     filter_sn[FILTER_VARIABLE_COUNT];
 525 int     filter_test            = FTEST_NONE;
 526 uschar *filter_test_sfile      = NULL;
 527 uschar *filter_test_ufile      = NULL;
 528 uschar *filter_thisaddress     = NULL;
 529 int     finduser_retries       = 0;
 530 #ifdef WITH_OLD_DEMIME
 531 uschar *found_extension        = NULL;
 532 #endif
 533 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 534 uschar *freeze_tell            = NULL;
 535 uschar *fudged_queue_times     = US"";
 536
 537 uschar *gecos_name             = NULL;
 538 uschar *gecos_pattern          = NULL;
 539 rewrite_rule  *global_rewrite_rules = NULL;
 540
 541 uschar *headers_charset        = US HEADERS_CHARSET;
 542 int     header_insert_maxlen   = 64 * 1024;
 543 header_line  *header_last      = NULL;
 544 header_line  *header_list      = NULL;
 545 int     header_maxsize         = HEADER_MAXSIZE;
 546 int     header_line_maxsize    = 0;
 547
 548 header_name header_names[] = {
 549   { US"bcc",            3, TRUE,  htype_bcc },
 550   { US"cc",             2, TRUE,  htype_cc },
 551   { US"date",           4, TRUE,  htype_date },
 552   { US"delivery-date", 13, FALSE, htype_delivery_date },
 553   { US"envelope-to",   11, FALSE, htype_envelope_to },
 554   { US"from",           4, TRUE,  htype_from },
 555   { US"message-id",    10, TRUE,  htype_id },
 556   { US"received",       8, FALSE, htype_received },
 557   { US"reply-to",       8, FALSE, htype_reply_to },
 558   { US"return-path",   11, FALSE, htype_return_path },
 559   { US"sender",         6, TRUE,  htype_sender },
 560   { US"subject",        7, FALSE, htype_subject },
 561   { US"to",             2, TRUE,  htype_to }
 562 };
 563
 564 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 565
 566 BOOL    header_rewritten       = FALSE;
 567 uschar *helo_accept_junk_hosts = NULL;
 568 uschar *helo_allow_chars       = US"";
 569 uschar *helo_lookup_domains    = US"@ : @[]";
 570 uschar *helo_try_verify_hosts  = NULL;
 571 BOOL    helo_verified          = FALSE;
 572 uschar *helo_verify_hosts      = NULL;
 573 uschar *hex_digits             = US"0123456789abcdef";
 574 uschar *hold_domains           = NULL;
 575 BOOL    host_checking          = FALSE;
 576 BOOL    host_checking_callout  = FALSE;
 577 uschar *host_data              = NULL;
 578 BOOL    host_find_failed_syntax= FALSE;
 579 uschar *host_lookup            = NULL;
 580 BOOL    host_lookup_deferred   = FALSE;
 581 BOOL    host_lookup_failed     = FALSE;
 582 uschar *host_lookup_order      = US"bydns:byaddr";
 583 uschar *host_lookup_msg        = US"";
 584 int     host_number            = 0;
 585 uschar *host_number_string     = NULL;
 586 uschar *host_reject_connection = NULL;
 587 tree_node *hostlist_anchor     = NULL;
 588 int     hostlist_count         = 0;
 589 uschar *hosts_treat_as_local   = NULL;
 590 uschar *hosts_connection_nolog = NULL;
 591
 592 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 593 BOOL    ignore_fromline_local  = FALSE;
 594 uschar *ignore_fromline_hosts  = NULL;
 595 uschar *interface_address      = NULL;
 596 int     interface_port         = -1;
 597 BOOL    is_inetd               = FALSE;
 598
 599 int     journal_fd             = -1;
 600
 601 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 602
 603 uschar *eldap_dn               = NULL;
 604 int     load_average           = -2;
 605 BOOL    local_error_message    = FALSE;
 606 BOOL    local_from_check       = TRUE;
 607 uschar *local_from_prefix      = NULL;
 608 uschar *local_from_suffix      = NULL;
 609
 610 #if HAVE_IPV6
 611 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 612 #else
 613 uschar *local_interfaces       = US"0.0.0.0";
 614 #endif
 615
 616 uschar *local_scan_data        = NULL;
 617 int     local_scan_timeout     = 5*60;
 618 BOOL    local_sender_retain    = FALSE;
 619 gid_t   local_user_gid         = (gid_t)(-1);
 620 uid_t   local_user_uid         = (uid_t)(-1);
 621
 622 tree_node *localpartlist_anchor= NULL;
 623 int     localpartlist_count    = 0;
 624 uschar *log_buffer             = NULL;
 625 unsigned int log_extra_selector = LX_default;
 626 uschar *log_file_path          = US LOG_FILE_PATH
 627                            "\0<--------------Space to patch log_file_path->";
 628
 629 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 630 are the ones that get put into log_write_selector. They can be used in calls to
 631 log_write() to test for the bit. The options with LX_xxx identifiers have
 632 values greater than 0x80000000 and are put int log_extra_selector (without the
 633 top bit). They are never used in calls to log_write(), but are tested
 634 independently. This separation became necessary when the number of log
 635 selectors was getting close to filling a 32-bit word. */
 636
 637 bit_table log_options[]        = {
 638   { US"address_rewrite",              L_address_rewrite },
 639   { US"all",                          L_all },
 640   { US"all_parents",                  L_all_parents },
 641   { US"arguments",                    LX_arguments },
 642   { US"connection_reject",            L_connection_reject },
 643   { US"delay_delivery",               L_delay_delivery },
 644   { US"deliver_time",                 LX_deliver_time },
 645   { US"delivery_size",                LX_delivery_size },
 646   { US"dnslist_defer",                L_dnslist_defer },
 647   { US"etrn",                         L_etrn },
 648   { US"host_lookup_failed",           L_host_lookup_failed },
 649   { US"ident_timeout",                LX_ident_timeout },
 650   { US"incoming_interface",           LX_incoming_interface },
 651   { US"incoming_port",                LX_incoming_port },
 652   { US"lost_incoming_connection",     L_lost_incoming_connection },
 653   { US"outgoing_port",                LX_outgoing_port },
 654   { US"queue_run",                    L_queue_run },
 655   { US"queue_time",                   LX_queue_time },
 656   { US"queue_time_overall",           LX_queue_time_overall },
 657   { US"received_recipients",          LX_received_recipients },
 658   { US"received_sender",              LX_received_sender },
 659   { US"rejected_header",              LX_rejected_header },
 660   { US"rejected_headers",             LX_rejected_header },
 661   { US"retry_defer",                  L_retry_defer },
 662   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 663   { US"sender_on_delivery",           LX_sender_on_delivery },
 664   { US"size_reject",                  L_size_reject },
 665   { US"skip_delivery",                L_skip_delivery },
 666   { US"smtp_confirmation",            LX_smtp_confirmation },
 667   { US"smtp_connection",              L_smtp_connection },
 668   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 669   { US"smtp_protocol_error",          L_smtp_protocol_error },
 670   { US"smtp_syntax_error",            L_smtp_syntax_error },
 671   { US"subject",                      LX_subject },
 672   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 673   { US"tls_cipher",                   LX_tls_cipher },
 674   { US"tls_peerdn",                   LX_tls_peerdn }
 675 };
 676
 677 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 678 unsigned int log_write_selector= L_default;
 679 uschar *log_selector_string    = NULL;
 680 FILE   *log_stderr             = NULL;
 681 BOOL    log_testing_mode       = FALSE;
 682 BOOL    log_timezone           = FALSE;
 683 uschar *login_sender_address   = NULL;
 684 int     lookup_open_max        = 25;
 685 uschar *lookup_value           = NULL;
 686
 687 macro_item  *macros            = NULL;
 688 uschar *mailstore_basename     = NULL;
 689 #ifdef WITH_CONTENT_SCAN
 690 uschar *malware_name           = NULL;  /* Virus Name */
 691 #endif
 692 int     max_username_length    = 0;
 693 int     message_age            = 0;
 694 uschar *message_body           = NULL;
 695 uschar *message_body_end       = NULL;
 696 int     message_body_size      = 0;
 697 int     message_body_visible   = 500;
 698 int     message_ended          = END_NOTSTARTED;
 699 uschar *message_headers        = NULL;
 700 uschar *message_id;
 701 uschar *message_id_domain      = NULL;
 702 uschar *message_id_text        = NULL;
 703 struct timeval message_id_tv   = { 0, 0 };
 704 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 705 uschar *message_id_external;
 706 int     message_linecount      = 0;
 707 BOOL    message_logs           = TRUE;
 708 int     message_size           = 0;
 709 uschar *message_size_limit     = US"50M";
 710 uschar  message_subdir[2]      = { 0, 0 };
 711 uschar *message_reference      = NULL;
 712
 713 /* MIME ACL expandables */
 714 #ifdef WITH_CONTENT_SCAN
 715 int     mime_anomaly_level     = 0;
 716 uschar *mime_anomaly_text      = NULL;
 717 uschar *mime_boundary          = NULL;
 718 uschar *mime_charset           = NULL;
 719 uschar *mime_content_description = NULL;
 720 uschar *mime_content_disposition = NULL;
 721 uschar *mime_content_id        = NULL;
 722 unsigned int mime_content_size = 0;
 723 uschar *mime_content_transfer_encoding = NULL;
 724 uschar *mime_content_type      = NULL;
 725 uschar *mime_decoded_filename  = NULL;
 726 uschar *mime_filename          = NULL;
 727 int     mime_is_multipart      = 0;
 728 int     mime_is_coverletter    = 0;
 729 int     mime_is_rfc822         = 0;
 730 int     mime_part_count        = -1;
 731 #endif
 732
 733 BOOL    mua_wrapper            = FALSE;
 734
 735 uid_t  *never_users            = NULL;
 736 #ifdef WITH_CONTENT_SCAN
 737 BOOL    no_mbox_unspool        = FALSE;
 738 #endif
 739 BOOL    no_multiline_responses = FALSE;
 740
 741 uid_t   original_euid;
 742 gid_t   originator_gid;
 743 uschar *originator_login       = NULL;
 744 uschar *originator_name        = NULL;
 745 uid_t   originator_uid;
 746 uschar *override_local_interfaces = NULL;
 747 uschar *override_pid_file_path = NULL;
 748
 749 BOOL    parse_allow_group      = FALSE;
 750 BOOL    parse_found_group      = FALSE;
 751 uschar *percent_hack_domains   = NULL;
 752 uschar *pid_file_path          = US PID_FILE_PATH
 753                            "\0<--------------Space to patch pid_file_path->";
 754 uschar *pipelining_advertise_hosts = US"*";
 755 BOOL    preserve_message_logs  = FALSE;
 756 uschar *primary_hostname       = NULL;
 757 BOOL    print_topbitchars      = FALSE;
 758 uschar  process_info[PROCESS_INFO_SIZE];
 759 uschar *process_log_path       = NULL;
 760 BOOL    prod_requires_admin    = TRUE;
 761 uschar *prvscheck_address      = NULL;
 762 uschar *prvscheck_keynum       = NULL;
 763 uschar *prvscheck_result       = NULL;
 764
 765
 766 uschar *qualify_domain_recipient = NULL;
 767 uschar *qualify_domain_sender  = NULL;
 768 BOOL    queue_2stage           = FALSE;
 769 uschar *queue_domains          = NULL;
 770 int     queue_interval         = -1;
 771 BOOL    queue_list_requires_admin = TRUE;
 772 BOOL    queue_only             = FALSE;
 773 uschar *queue_only_file        = NULL;
 774 int     queue_only_load        = -1;
 775 BOOL    queue_only_override    = TRUE;
 776 BOOL    queue_only_policy      = FALSE;
 777 BOOL    queue_run_first_delivery = FALSE;
 778 BOOL    queue_run_force        = FALSE;
 779 BOOL    queue_run_in_order     = FALSE;
 780 BOOL    queue_run_local        = FALSE;
 781 int     queue_run_max          = 5;
 782 pid_t   queue_run_pid          = (pid_t)0;
 783 int     queue_run_pipe         = -1;
 784 BOOL    queue_running          = FALSE;
 785 BOOL    queue_smtp             = FALSE;
 786 uschar *queue_smtp_domains     = NULL;
 787
 788 unsigned int random_seed       = 0;
 789 tree_node *ratelimiters_cmd    = NULL;
 790 tree_node *ratelimiters_conn   = NULL;
 791 tree_node *ratelimiters_mail   = NULL;
 792 uschar *raw_active_hostname    = NULL;
 793 uschar *raw_sender             = NULL;
 794 uschar **raw_recipients        = NULL;
 795 int     raw_recipients_count   = 0;
 796
 797 int     rcpt_count             = 0;
 798 int     rcpt_fail_count        = 0;
 799 int     rcpt_defer_count       = 0;
 800 gid_t   real_gid;
 801 uid_t   real_uid;
 802 BOOL    really_exim            = TRUE;
 803 BOOL    receive_call_bombout   = FALSE;
 804 int     receive_linecount      = 0;
 805 int     receive_messagecount   = 0;
 806 int     receive_timeout        = 0;
 807 int     received_count         = 0;
 808 uschar *received_for           = NULL;
 809
 810 /*  This is the default text for Received headers generated by Exim. The
 811 date  will be automatically added on the end. */
 812
 813 uschar *received_header_text   = US
 814      "Received: "
 815      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 816      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 817      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 818      "by $primary_hostname "
 819      "${if def:received_protocol {with $received_protocol}} "
 820      #ifdef SUPPORT_TLS
 821      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 822      #endif
 823      "(Exim $version_number)\n\t"
 824      "id $message_id"
 825      "${if def:received_for {\n\tfor $received_for}}"
 826      "\0<---------------Space to patch received_header_text->";
 827
 828 int     received_headers_max   = 30;
 829 uschar *received_protocol      = NULL;
 830 int     received_time          = 0;
 831 uschar *recipient_data         = NULL;
 832 uschar *recipient_unqualified_hosts = NULL;
 833 uschar *recipient_verify_failure = NULL;
 834 int     recipients_count       = 0;
 835 BOOL    recipients_discarded   = FALSE;
 836 recipient_item  *recipients_list = NULL;
 837 int     recipients_list_max    = 0;
 838 int     recipients_max         = 0;
 839 BOOL    recipients_max_reject  = FALSE;
 840 const pcre *regex_AUTH         = NULL;
 841 const pcre *regex_check_dns_names = NULL;
 842 const pcre *regex_From         = NULL;
 843 const pcre *regex_PIPELINING   = NULL;
 844 const pcre *regex_SIZE         = NULL;
 845 const pcre *regex_ismsgid      = NULL;
 846 #ifdef WITH_CONTENT_SCAN
 847 uschar *regex_match_string     = NULL;
 848 #endif
 849 int     remote_delivery_count  = 0;
 850 int     remote_max_parallel    = 2;
 851 uschar *remote_sort_domains    = NULL;
 852 int     retry_data_expire      = 7*24*60*60;
 853 int     retry_interval_max     = 24*60*60;
 854 int     retry_maximum_timeout  = 0;        /* set from retry config */
 855 retry_config  *retries         = NULL;
 856 uschar *return_path            = NULL;
 857 BOOL    return_path_remove     = TRUE;
 858 int     rewrite_existflags     = 0;
 859 uschar *rfc1413_hosts          = US"*";
 860 int     rfc1413_query_timeout  = 30;
 861 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 862 uid_t   root_uid               = ROOT_UID;
 863
 864 router_instance  *routers  = NULL;
 865 router_instance  router_defaults = {
 866     NULL,                      /* chain pointer */
 867     NULL,                      /* name */
 868     NULL,                      /* info */
 869     NULL,                      /* private options block pointer */
 870     NULL,                      /* driver name */
 871
 872     NULL,                      /* address_data */
 873 #ifdef EXPERIMENTAL_BRIGHTMAIL
 874     NULL,                      /* bmi_rule */
 875 #endif
 876     NULL,                      /* cannot_route_message */
 877     NULL,                      /* condition */
 878     NULL,                      /* current_directory */
 879     NULL,                      /* debug_string */
 880     NULL,                      /* domains */
 881     NULL,                      /* errors_to */
 882     NULL,                      /* expand_gid */
 883     NULL,                      /* expand_uid */
 884     NULL,                      /* expand_more */
 885     NULL,                      /* expand_unseen */
 886     NULL,                      /* extra_headers */
 887     NULL,                      /* fallback_hosts */
 888     NULL,                      /* home_directory */
 889     NULL,                      /* ignore_target_hosts */
 890     NULL,                      /* local_parts */
 891     NULL,                      /* pass_router_name */
 892     NULL,                      /* prefix */
 893     NULL,                      /* redirect_router_name */
 894     NULL,                      /* remove_headers */
 895     NULL,                      /* require_files */
 896     NULL,                      /* router_home_directory */
 897     US"freeze",                /* self */
 898     NULL,                      /* senders */
 899     NULL,                      /* suffix */
 900     NULL,                      /* translate_ip_address */
 901     NULL,                      /* transport_name */
 902
 903     TRUE,                      /* address_test */
 904 #ifdef EXPERIMENTAL_BRIGHTMAIL
 905     FALSE,                     /* bmi_deliver_alternate */
 906     FALSE,                     /* bmi_deliver_default */
 907     FALSE,                     /* bmi_dont_deliver */
 908 #endif
 909     TRUE,                      /* expn */
 910     FALSE,                     /* caseful_local_part */
 911     FALSE,                     /* check_local_user */
 912     FALSE,                     /* disable_logging */
 913     FALSE,                     /* fail_verify_recipient */
 914     FALSE,                     /* fail_verify_sender */
 915     FALSE,                     /* gid_set */
 916     FALSE,                     /* initgroups */
 917     TRUE_UNSET,                /* log_as_local */
 918     TRUE,                      /* more */
 919     FALSE,                     /* pass_on_timeout */
 920     FALSE,                     /* prefix_optional */
 921     TRUE,                      /* repeat_use */
 922     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 923     FALSE,                     /* same_domain_copy_routing */
 924     FALSE,                     /* self_rewrite */
 925     FALSE,                     /* suffix_optional */
 926     FALSE,                     /* verify_only */
 927     TRUE,                      /* verify_recipient */
 928     TRUE,                      /* verify_sender */
 929     FALSE,                     /* uid_set */
 930     FALSE,                     /* unseen */
 931
 932     self_freeze,               /* self_code */
 933     (uid_t)(-1),               /* uid */
 934     (gid_t)(-1),               /* gid */
 935
 936     NULL,                      /* fallback_hostlist */
 937     NULL,                      /* transport instance */
 938     NULL,                      /* pass_router */
 939     NULL                       /* redirect_router */
 940 };
 941
 942 ip_address_item *running_interfaces = NULL;
 943 BOOL    running_in_test_harness = FALSE;
 944
 945 /* This is a weird one. The following string gets patched in the binary by the
 946 script that sets up a copy of Exim for running in the test harness. It seems
 947 that compilers are now clever, and share constant strings if they can.
 948 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 949 make use of the end of this string in order to save space. So the patching then
 950 wrecks this. We default this optimization by adding some additional characters
 951 onto the end of the string. */
 952
 953 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 954
 955 int     runrc                  = 0;
 956
 957 uschar *search_error_message   = NULL;
 958 BOOL    search_find_defer      = FALSE;
 959 uschar *self_hostname          = NULL;
 960 uschar *sender_address         = NULL;
 961 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 962 uschar *sender_address_data    = NULL;
 963 BOOL    sender_address_forced  = FALSE;
 964 uschar *sender_address_unrewritten = NULL;
 965 uschar *sender_data            = NULL;
 966 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 967 uschar *sender_fullhost        = NULL;
 968 uschar *sender_helo_name       = NULL;
 969 uschar **sender_host_aliases   = &no_aliases;
 970 uschar *sender_host_address    = NULL;
 971 uschar *sender_host_authenticated = NULL;
 972 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 973 uschar *sender_host_name       = NULL;
 974 int     sender_host_port       = 0;
 975 BOOL    sender_host_notsocket  = FALSE;
 976 BOOL    sender_host_unknown    = FALSE;
 977 uschar *sender_ident           = NULL;
 978 BOOL    sender_local           = FALSE;
 979 uschar *sender_rate            = NULL;
 980 uschar *sender_rate_limit      = NULL;
 981 uschar *sender_rate_period     = NULL;
 982 uschar *sender_rcvhost         = NULL;
 983 BOOL    sender_set_untrusted   = FALSE;
 984 uschar *sender_unqualified_hosts = NULL;
 985 uschar *sender_verify_failure = NULL;
 986 address_item *sender_verified_list  = NULL;
 987 address_item *sender_verified_failed = NULL;
 988 int     sender_verified_rc     = -1;
 989 BOOL    sender_verified_responded = FALSE;
 990 volatile  BOOL sigalrm_seen    = FALSE;
 991 uschar **sighup_argv           = NULL;
 992 int     smtp_accept_count      = 0;
 993 BOOL    smtp_accept_keepalive  = TRUE;
 994 int     smtp_accept_max        = 20;
 995 int     smtp_accept_max_nonmail= 10;
 996 uschar *smtp_accept_max_nonmail_hosts = US"*";
 997 int     smtp_accept_max_per_connection = 1000;
 998 uschar *smtp_accept_max_per_host = NULL;
 999 int     smtp_accept_queue      = 0;
1000 int     smtp_accept_queue_per_connection = 10;
1001 int     smtp_accept_reserve    = 0;
1002 uschar *smtp_active_hostname   = NULL;
1003 BOOL    smtp_authenticated     = FALSE;
1004 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1005                              "Exim $version_number $tod_full"
1006                              "\0<---------------Space to patch smtp_banner->";
1007 BOOL    smtp_batched_input     = FALSE;
1008 BOOL    smtp_check_spool_space = TRUE;
1009 uschar *smtp_command_argument  = NULL;
1010 int     smtp_connect_backlog   = 20;
1011 double  smtp_delay_mail        = 0.0;
1012 double  smtp_delay_rcpt        = 0.0;
1013 BOOL    smtp_enforce_sync      = TRUE;
1014 FILE   *smtp_in                = NULL;
1015 BOOL    smtp_input             = FALSE;
1016 int     smtp_load_reserve      = -1;
1017 int     smtp_mailcmd_count     = 0;
1018 FILE   *smtp_out               = NULL;
1019 uschar *smtp_etrn_command      = NULL;
1020 BOOL    smtp_etrn_serialize    = TRUE;
1021 int     smtp_max_synprot_errors= 3;
1022 int     smtp_max_unknown_commands = 3;
1023 uschar *smtp_ratelimit_hosts   = NULL;
1024 uschar *smtp_ratelimit_mail    = NULL;
1025 uschar *smtp_ratelimit_rcpt    = NULL;
1026 uschar *smtp_read_error        = US"";
1027 int     smtp_receive_timeout   = 5*60;
1028 uschar *smtp_reserve_hosts     = NULL;
1029 BOOL    smtp_return_error_details = FALSE;
1030 int     smtp_rlm_base          = 0;
1031 double  smtp_rlm_factor        = 0.0;
1032 int     smtp_rlm_limit         = 0;
1033 int     smtp_rlm_threshold     = INT_MAX;
1034 int     smtp_rlr_base          = 0;
1035 double  smtp_rlr_factor        = 0.0;
1036 int     smtp_rlr_limit         = 0;
1037 int     smtp_rlr_threshold     = INT_MAX;
1038 BOOL    smtp_use_pipelining    = FALSE;
1039 BOOL    smtp_use_size          = FALSE;
1040
1041 #ifdef WITH_CONTENT_SCAN
1042 uschar *spamd_address          = US"127.0.0.1 783";
1043 uschar *spam_bar               = NULL;
1044 uschar *spam_report            = NULL;
1045 uschar *spam_score             = NULL;
1046 uschar *spam_score_int         = NULL;
1047 #endif
1048 #ifdef EXPERIMENTAL_SPF
1049 uschar *spf_header_comment     = NULL;
1050 uschar *spf_received           = NULL;
1051 uschar *spf_result             = NULL;
1052 uschar *spf_smtp_comment       = NULL;
1053 #endif
1054
1055 BOOL    split_spool_directory  = FALSE;
1056 uschar *spool_directory        = US SPOOL_DIRECTORY
1057                            "\0<--------------Space to patch spool_directory->";
1058 #ifdef EXPERIMENTAL_SRS
1059 uschar *srs_config             = NULL;
1060 uschar *srs_db_address         = NULL;
1061 uschar *srs_db_key             = NULL;
1062 int     srs_hashlength         = 6;
1063 int     srs_hashmin            = -1;
1064 int     srs_maxage             = 31;
1065 uschar *srs_orig_recipient     = NULL;
1066 uschar *srs_orig_sender        = NULL;
1067 uschar *srs_recipient          = NULL;
1068 uschar *srs_secrets            = NULL;
1069 uschar *srs_status             = NULL;
1070 BOOL    srs_usehash            = TRUE;
1071 BOOL    srs_usetimestamp       = TRUE;
1072 #endif
1073 int     string_datestamp_offset= -1;
1074 BOOL    strip_excess_angle_brackets = FALSE;
1075 BOOL    strip_trailing_dot     = FALSE;
1076 uschar *submission_domain      = NULL;
1077 BOOL    submission_mode        = FALSE;
1078 BOOL    synchronous_delivery   = FALSE;
1079 BOOL    syslog_duplication     = TRUE;
1080 int     syslog_facility        = LOG_MAIL;
1081 uschar *syslog_processname     = US"exim";
1082 BOOL    syslog_timestamp       = TRUE;
1083 uschar *system_filter          = NULL;
1084
1085 uschar *system_filter_directory_transport = NULL;
1086 uschar *system_filter_file_transport = NULL;
1087 uschar *system_filter_pipe_transport = NULL;
1088 uschar *system_filter_reply_transport = NULL;
1089
1090 gid_t   system_filter_gid      = 0;
1091 BOOL    system_filter_gid_set  = FALSE;
1092 uid_t   system_filter_uid      = 0;
1093 BOOL    system_filter_uid_set  = FALSE;
1094 BOOL    system_filtering       = FALSE;
1095
1096 BOOL    tcp_nodelay            = TRUE;
1097 int     thismessage_size_limit = 0;
1098 int     timeout_frozen_after   = 0;
1099 BOOL    timestamps_utc         = FALSE;
1100
1101 transport_instance  *transports = NULL;
1102
1103 transport_instance  transport_defaults = {
1104     NULL,                     /* chain pointer */
1105     NULL,                     /* name */
1106     NULL,                     /* info */
1107     NULL,                     /* private options block pointer */
1108     NULL,                     /* driver name */
1109     NULL,                     /* setup entry point */
1110     1,                        /* batch_max */
1111     NULL,                     /* batch_id */
1112     NULL,                     /* home_dir */
1113     NULL,                     /* current_dir */
1114     TRUE,                     /* multi-domain */
1115     FALSE,                    /* overrides_hosts */
1116     100,                      /* max_addresses */
1117     500,                      /* connection_max_messages */
1118     FALSE,                    /* deliver_as_creator */
1119     FALSE,                    /* disable_logging */
1120     FALSE,                    /* initgroups */
1121     FALSE,                    /* uid_set */
1122     FALSE,                    /* gid_set */
1123     (uid_t)(-1),              /* uid */
1124     (gid_t)(-1),              /* gid */
1125     NULL,                     /* expand_uid */
1126     NULL,                     /* expand_gid */
1127     NULL,                     /* warn_message */
1128     NULL,                     /* shadow */
1129     NULL,                     /* shadow_condition */
1130     NULL,                     /* filter_command */
1131     NULL,                     /* add_headers */
1132     NULL,                     /* remove_headers */
1133     NULL,                     /* return_path */
1134     NULL,                     /* debug_string */
1135     NULL,                     /* message_size_limit */
1136     NULL,                     /* headers_rewrite */
1137     NULL,                     /* rewrite_rules */
1138     0,                        /* rewrite_existflags */
1139     300,                      /* filter_timeout */
1140     FALSE,                    /* body_only */
1141     FALSE,                    /* delivery_date_add */
1142     FALSE,                    /* envelope_to_add */
1143     FALSE,                    /* headers_only */
1144     FALSE,                    /* rcpt_include_affixes */
1145     FALSE,                    /* return_path_add */
1146     FALSE,                    /* return_output */
1147     FALSE,                    /* return_fail_output */
1148     FALSE,                    /* log_output */
1149     FALSE,                    /* log_fail_output */
1150     FALSE,                    /* log_defer_output */
1151     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1152                                  1 nor 0 so can detect unset */
1153 };
1154
1155 int     transport_count;
1156 uschar **transport_filter_argv  = NULL;
1157 int     transport_filter_timeout;
1158 BOOL    transport_filter_timed_out = FALSE;
1159 int     transport_write_timeout= 0;
1160
1161 tree_node  *tree_dns_fails     = NULL;
1162 tree_node  *tree_duplicates    = NULL;
1163 tree_node  *tree_nonrecipients = NULL;
1164 tree_node  *tree_unusable      = NULL;
1165
1166 BOOL    trusted_caller         = FALSE;
1167 gid_t  *trusted_groups         = NULL;
1168 uid_t  *trusted_users          = NULL;
1169 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1170
1171 uschar *unknown_login          = NULL;
1172 uschar *unknown_username       = NULL;
1173 uschar *untrusted_set_sender   = NULL;
1174
1175 /*  A regex for matching a "From_" line in an incoming message, in the form
1176
1177     From ph10 Fri Jan  5 12:35 GMT 1996
1178
1179 which  the "mail" commands send to the MTA (undocumented, of course), or in
1180 the  form
1181
1182     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1183
1184 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1185 Because  of variations in time formats, just match up to the minutes. That
1186 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1187 so  just require one digit for hours and minutes. The weekday is also absent
1188 in  some forms. */
1189
1190 uschar *uucp_from_pattern      = US
1191    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1192    "(?:"                                          /* Non-extracting bracket */
1193    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1194    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1195    ")"                                            /* End alternation */
1196    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1197
1198 uschar *uucp_from_sender       = US"$1";
1199
1200 uschar *warn_message_file      = NULL;
1201 uschar *warnmsg_delay          = NULL;
1202 uschar *warnmsg_recipients     = NULL;
1203 BOOL    write_rejectlog        = TRUE;
1204
1205 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1206 uschar *version_date           = US"?";
1207 uschar *version_cnumber        = US"????";
1208 uschar *version_string         = US"?";
1209
1210 int     warning_count          = 0;
1211
1212 /*  End of globals.c */