src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.33 2005/08/02 15:19:20 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 BOOL    helo_verify_failed     = FALSE;
 573 uschar *helo_verify_hosts      = NULL;
 574 uschar *hex_digits             = US"0123456789abcdef";
 575 uschar *hold_domains           = NULL;
 576 BOOL    host_checking          = FALSE;
 577 BOOL    host_checking_callout  = FALSE;
 578 uschar *host_data              = NULL;
 579 BOOL    host_find_failed_syntax= FALSE;
 580 uschar *host_lookup            = NULL;
 581 BOOL    host_lookup_deferred   = FALSE;
 582 BOOL    host_lookup_failed     = FALSE;
 583 uschar *host_lookup_order      = US"bydns:byaddr";
 584 uschar *host_lookup_msg        = US"";
 585 int     host_number            = 0;
 586 uschar *host_number_string     = NULL;
 587 uschar *host_reject_connection = NULL;
 588 tree_node *hostlist_anchor     = NULL;
 589 int     hostlist_count         = 0;
 590 uschar *hosts_treat_as_local   = NULL;
 591 uschar *hosts_connection_nolog = NULL;
 592
 593 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 594 BOOL    ignore_fromline_local  = FALSE;
 595 uschar *ignore_fromline_hosts  = NULL;
 596 uschar *interface_address      = NULL;
 597 int     interface_port         = -1;
 598 BOOL    is_inetd               = FALSE;
 599
 600 int     journal_fd             = -1;
 601
 602 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 603
 604 uschar *eldap_dn               = NULL;
 605 int     load_average           = -2;
 606 BOOL    local_error_message    = FALSE;
 607 BOOL    local_from_check       = TRUE;
 608 uschar *local_from_prefix      = NULL;
 609 uschar *local_from_suffix      = NULL;
 610
 611 #if HAVE_IPV6
 612 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 613 #else
 614 uschar *local_interfaces       = US"0.0.0.0";
 615 #endif
 616
 617 uschar *local_scan_data        = NULL;
 618 int     local_scan_timeout     = 5*60;
 619 BOOL    local_sender_retain    = FALSE;
 620 gid_t   local_user_gid         = (gid_t)(-1);
 621 uid_t   local_user_uid         = (uid_t)(-1);
 622
 623 tree_node *localpartlist_anchor= NULL;
 624 int     localpartlist_count    = 0;
 625 uschar *log_buffer             = NULL;
 626 unsigned int log_extra_selector = LX_default;
 627 uschar *log_file_path          = US LOG_FILE_PATH
 628                            "\0<--------------Space to patch log_file_path->";
 629
 630 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 631 are the ones that get put into log_write_selector. They can be used in calls to
 632 log_write() to test for the bit. The options with LX_xxx identifiers have
 633 values greater than 0x80000000 and are put int log_extra_selector (without the
 634 top bit). They are never used in calls to log_write(), but are tested
 635 independently. This separation became necessary when the number of log
 636 selectors was getting close to filling a 32-bit word. */
 637
 638 bit_table log_options[]        = {
 639   { US"address_rewrite",              L_address_rewrite },
 640   { US"all",                          L_all },
 641   { US"all_parents",                  L_all_parents },
 642   { US"arguments",                    LX_arguments },
 643   { US"connection_reject",            L_connection_reject },
 644   { US"delay_delivery",               L_delay_delivery },
 645   { US"deliver_time",                 LX_deliver_time },
 646   { US"delivery_size",                LX_delivery_size },
 647   { US"dnslist_defer",                L_dnslist_defer },
 648   { US"etrn",                         L_etrn },
 649   { US"host_lookup_failed",           L_host_lookup_failed },
 650   { US"ident_timeout",                LX_ident_timeout },
 651   { US"incoming_interface",           LX_incoming_interface },
 652   { US"incoming_port",                LX_incoming_port },
 653   { US"lost_incoming_connection",     L_lost_incoming_connection },
 654   { US"outgoing_port",                LX_outgoing_port },
 655   { US"queue_run",                    L_queue_run },
 656   { US"queue_time",                   LX_queue_time },
 657   { US"queue_time_overall",           LX_queue_time_overall },
 658   { US"received_recipients",          LX_received_recipients },
 659   { US"received_sender",              LX_received_sender },
 660   { US"rejected_header",              LX_rejected_header },
 661   { US"rejected_headers",             LX_rejected_header },
 662   { US"retry_defer",                  L_retry_defer },
 663   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 664   { US"sender_on_delivery",           LX_sender_on_delivery },
 665   { US"size_reject",                  L_size_reject },
 666   { US"skip_delivery",                L_skip_delivery },
 667   { US"smtp_confirmation",            LX_smtp_confirmation },
 668   { US"smtp_connection",              L_smtp_connection },
 669   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 670   { US"smtp_protocol_error",          L_smtp_protocol_error },
 671   { US"smtp_syntax_error",            L_smtp_syntax_error },
 672   { US"subject",                      LX_subject },
 673   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 674   { US"tls_cipher",                   LX_tls_cipher },
 675   { US"tls_peerdn",                   LX_tls_peerdn }
 676 };
 677
 678 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 679 unsigned int log_write_selector= L_default;
 680 uschar *log_selector_string    = NULL;
 681 FILE   *log_stderr             = NULL;
 682 BOOL    log_testing_mode       = FALSE;
 683 BOOL    log_timezone           = FALSE;
 684 uschar *login_sender_address   = NULL;
 685 int     lookup_open_max        = 25;
 686 uschar *lookup_value           = NULL;
 687
 688 macro_item  *macros            = NULL;
 689 uschar *mailstore_basename     = NULL;
 690 #ifdef WITH_CONTENT_SCAN
 691 uschar *malware_name           = NULL;  /* Virus Name */
 692 #endif
 693 int     max_username_length    = 0;
 694 int     message_age            = 0;
 695 uschar *message_body           = NULL;
 696 uschar *message_body_end       = NULL;
 697 int     message_body_size      = 0;
 698 int     message_body_visible   = 500;
 699 int     message_ended          = END_NOTSTARTED;
 700 uschar *message_headers        = NULL;
 701 uschar *message_id;
 702 uschar *message_id_domain      = NULL;
 703 uschar *message_id_text        = NULL;
 704 struct timeval message_id_tv   = { 0, 0 };
 705 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 706 uschar *message_id_external;
 707 int     message_linecount      = 0;
 708 BOOL    message_logs           = TRUE;
 709 int     message_size           = 0;
 710 uschar *message_size_limit     = US"50M";
 711 uschar  message_subdir[2]      = { 0, 0 };
 712 uschar *message_reference      = NULL;
 713
 714 /* MIME ACL expandables */
 715 #ifdef WITH_CONTENT_SCAN
 716 int     mime_anomaly_level     = 0;
 717 uschar *mime_anomaly_text      = NULL;
 718 uschar *mime_boundary          = NULL;
 719 uschar *mime_charset           = NULL;
 720 uschar *mime_content_description = NULL;
 721 uschar *mime_content_disposition = NULL;
 722 uschar *mime_content_id        = NULL;
 723 unsigned int mime_content_size = 0;
 724 uschar *mime_content_transfer_encoding = NULL;
 725 uschar *mime_content_type      = NULL;
 726 uschar *mime_decoded_filename  = NULL;
 727 uschar *mime_filename          = NULL;
 728 int     mime_is_multipart      = 0;
 729 int     mime_is_coverletter    = 0;
 730 int     mime_is_rfc822         = 0;
 731 int     mime_part_count        = -1;
 732 #endif
 733
 734 BOOL    mua_wrapper            = FALSE;
 735
 736 uid_t  *never_users            = NULL;
 737 #ifdef WITH_CONTENT_SCAN
 738 BOOL    no_mbox_unspool        = FALSE;
 739 #endif
 740 BOOL    no_multiline_responses = FALSE;
 741
 742 uid_t   original_euid;
 743 gid_t   originator_gid;
 744 uschar *originator_login       = NULL;
 745 uschar *originator_name        = NULL;
 746 uid_t   originator_uid;
 747 uschar *override_local_interfaces = NULL;
 748 uschar *override_pid_file_path = NULL;
 749
 750 BOOL    parse_allow_group      = FALSE;
 751 BOOL    parse_found_group      = FALSE;
 752 uschar *percent_hack_domains   = NULL;
 753 uschar *pid_file_path          = US PID_FILE_PATH
 754                            "\0<--------------Space to patch pid_file_path->";
 755 uschar *pipelining_advertise_hosts = US"*";
 756 BOOL    preserve_message_logs  = FALSE;
 757 uschar *primary_hostname       = NULL;
 758 BOOL    print_topbitchars      = FALSE;
 759 uschar  process_info[PROCESS_INFO_SIZE];
 760 uschar *process_log_path       = NULL;
 761 BOOL    prod_requires_admin    = TRUE;
 762 uschar *prvscheck_address      = NULL;
 763 uschar *prvscheck_keynum       = NULL;
 764 uschar *prvscheck_result       = NULL;
 765
 766
 767 uschar *qualify_domain_recipient = NULL;
 768 uschar *qualify_domain_sender  = NULL;
 769 BOOL    queue_2stage           = FALSE;
 770 uschar *queue_domains          = NULL;
 771 int     queue_interval         = -1;
 772 BOOL    queue_list_requires_admin = TRUE;
 773 BOOL    queue_only             = FALSE;
 774 uschar *queue_only_file        = NULL;
 775 int     queue_only_load        = -1;
 776 BOOL    queue_only_override    = TRUE;
 777 BOOL    queue_only_policy      = FALSE;
 778 BOOL    queue_run_first_delivery = FALSE;
 779 BOOL    queue_run_force        = FALSE;
 780 BOOL    queue_run_in_order     = FALSE;
 781 BOOL    queue_run_local        = FALSE;
 782 int     queue_run_max          = 5;
 783 pid_t   queue_run_pid          = (pid_t)0;
 784 int     queue_run_pipe         = -1;
 785 BOOL    queue_running          = FALSE;
 786 BOOL    queue_smtp             = FALSE;
 787 uschar *queue_smtp_domains     = NULL;
 788
 789 unsigned int random_seed       = 0;
 790 tree_node *ratelimiters_cmd    = NULL;
 791 tree_node *ratelimiters_conn   = NULL;
 792 tree_node *ratelimiters_mail   = NULL;
 793 uschar *raw_active_hostname    = NULL;
 794 uschar *raw_sender             = NULL;
 795 uschar **raw_recipients        = NULL;
 796 int     raw_recipients_count   = 0;
 797
 798 int     rcpt_count             = 0;
 799 int     rcpt_fail_count        = 0;
 800 int     rcpt_defer_count       = 0;
 801 gid_t   real_gid;
 802 uid_t   real_uid;
 803 BOOL    really_exim            = TRUE;
 804 BOOL    receive_call_bombout   = FALSE;
 805 int     receive_linecount      = 0;
 806 int     receive_messagecount   = 0;
 807 int     receive_timeout        = 0;
 808 int     received_count         = 0;
 809 uschar *received_for           = NULL;
 810
 811 /*  This is the default text for Received headers generated by Exim. The
 812 date  will be automatically added on the end. */
 813
 814 uschar *received_header_text   = US
 815      "Received: "
 816      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 817      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 818      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 819      "by $primary_hostname "
 820      "${if def:received_protocol {with $received_protocol}} "
 821      #ifdef SUPPORT_TLS
 822      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 823      #endif
 824      "(Exim $version_number)\n\t"
 825      "id $message_exim_id"
 826      "${if def:received_for {\n\tfor $received_for}}"
 827      "\0<---------------Space to patch received_header_text->";
 828
 829 int     received_headers_max   = 30;
 830 uschar *received_protocol      = NULL;
 831 int     received_time          = 0;
 832 uschar *recipient_data         = NULL;
 833 uschar *recipient_unqualified_hosts = NULL;
 834 uschar *recipient_verify_failure = NULL;
 835 int     recipients_count       = 0;
 836 BOOL    recipients_discarded   = FALSE;
 837 recipient_item  *recipients_list = NULL;
 838 int     recipients_list_max    = 0;
 839 int     recipients_max         = 0;
 840 BOOL    recipients_max_reject  = FALSE;
 841 const pcre *regex_AUTH         = NULL;
 842 const pcre *regex_check_dns_names = NULL;
 843 const pcre *regex_From         = NULL;
 844 const pcre *regex_IGNOREQUOTA  = NULL;
 845 const pcre *regex_PIPELINING   = NULL;
 846 const pcre *regex_SIZE         = NULL;
 847 const pcre *regex_ismsgid      = NULL;
 848 #ifdef WITH_CONTENT_SCAN
 849 uschar *regex_match_string     = NULL;
 850 #endif
 851 int     remote_delivery_count  = 0;
 852 int     remote_max_parallel    = 2;
 853 uschar *remote_sort_domains    = NULL;
 854 int     retry_data_expire      = 7*24*60*60;
 855 int     retry_interval_max     = 24*60*60;
 856 int     retry_maximum_timeout  = 0;        /* set from retry config */
 857 retry_config  *retries         = NULL;
 858 uschar *return_path            = NULL;
 859 BOOL    return_path_remove     = TRUE;
 860 int     rewrite_existflags     = 0;
 861 uschar *rfc1413_hosts          = US"*";
 862 int     rfc1413_query_timeout  = 30;
 863 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 864 uid_t   root_uid               = ROOT_UID;
 865
 866 router_instance  *routers  = NULL;
 867 router_instance  router_defaults = {
 868     NULL,                      /* chain pointer */
 869     NULL,                      /* name */
 870     NULL,                      /* info */
 871     NULL,                      /* private options block pointer */
 872     NULL,                      /* driver name */
 873
 874     NULL,                      /* address_data */
 875 #ifdef EXPERIMENTAL_BRIGHTMAIL
 876     NULL,                      /* bmi_rule */
 877 #endif
 878     NULL,                      /* cannot_route_message */
 879     NULL,                      /* condition */
 880     NULL,                      /* current_directory */
 881     NULL,                      /* debug_string */
 882     NULL,                      /* domains */
 883     NULL,                      /* errors_to */
 884     NULL,                      /* expand_gid */
 885     NULL,                      /* expand_uid */
 886     NULL,                      /* expand_more */
 887     NULL,                      /* expand_unseen */
 888     NULL,                      /* extra_headers */
 889     NULL,                      /* fallback_hosts */
 890     NULL,                      /* home_directory */
 891     NULL,                      /* ignore_target_hosts */
 892     NULL,                      /* local_parts */
 893     NULL,                      /* pass_router_name */
 894     NULL,                      /* prefix */
 895     NULL,                      /* redirect_router_name */
 896     NULL,                      /* remove_headers */
 897     NULL,                      /* require_files */
 898     NULL,                      /* router_home_directory */
 899     US"freeze",                /* self */
 900     NULL,                      /* senders */
 901     NULL,                      /* suffix */
 902     NULL,                      /* translate_ip_address */
 903     NULL,                      /* transport_name */
 904
 905     TRUE,                      /* address_test */
 906 #ifdef EXPERIMENTAL_BRIGHTMAIL
 907     FALSE,                     /* bmi_deliver_alternate */
 908     FALSE,                     /* bmi_deliver_default */
 909     FALSE,                     /* bmi_dont_deliver */
 910 #endif
 911     TRUE,                      /* expn */
 912     FALSE,                     /* caseful_local_part */
 913     FALSE,                     /* check_local_user */
 914     FALSE,                     /* disable_logging */
 915     FALSE,                     /* fail_verify_recipient */
 916     FALSE,                     /* fail_verify_sender */
 917     FALSE,                     /* gid_set */
 918     FALSE,                     /* initgroups */
 919     TRUE_UNSET,                /* log_as_local */
 920     TRUE,                      /* more */
 921     FALSE,                     /* pass_on_timeout */
 922     FALSE,                     /* prefix_optional */
 923     TRUE,                      /* repeat_use */
 924     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 925     FALSE,                     /* same_domain_copy_routing */
 926     FALSE,                     /* self_rewrite */
 927     FALSE,                     /* suffix_optional */
 928     FALSE,                     /* verify_only */
 929     TRUE,                      /* verify_recipient */
 930     TRUE,                      /* verify_sender */
 931     FALSE,                     /* uid_set */
 932     FALSE,                     /* unseen */
 933
 934     self_freeze,               /* self_code */
 935     (uid_t)(-1),               /* uid */
 936     (gid_t)(-1),               /* gid */
 937
 938     NULL,                      /* fallback_hostlist */
 939     NULL,                      /* transport instance */
 940     NULL,                      /* pass_router */
 941     NULL                       /* redirect_router */
 942 };
 943
 944 ip_address_item *running_interfaces = NULL;
 945 BOOL    running_in_test_harness = FALSE;
 946
 947 /* This is a weird one. The following string gets patched in the binary by the
 948 script that sets up a copy of Exim for running in the test harness. It seems
 949 that compilers are now clever, and share constant strings if they can.
 950 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 951 make use of the end of this string in order to save space. So the patching then
 952 wrecks this. We default this optimization by adding some additional characters
 953 onto the end of the string. */
 954
 955 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 956
 957 int     runrc                  = 0;
 958
 959 uschar *search_error_message   = NULL;
 960 BOOL    search_find_defer      = FALSE;
 961 uschar *self_hostname          = NULL;
 962 uschar *sender_address         = NULL;
 963 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 964 uschar *sender_address_data    = NULL;
 965 BOOL    sender_address_forced  = FALSE;
 966 uschar *sender_address_unrewritten = NULL;
 967 uschar *sender_data            = NULL;
 968 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 969 uschar *sender_fullhost        = NULL;
 970 uschar *sender_helo_name       = NULL;
 971 uschar **sender_host_aliases   = &no_aliases;
 972 uschar *sender_host_address    = NULL;
 973 uschar *sender_host_authenticated = NULL;
 974 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 975 uschar *sender_host_name       = NULL;
 976 int     sender_host_port       = 0;
 977 BOOL    sender_host_notsocket  = FALSE;
 978 BOOL    sender_host_unknown    = FALSE;
 979 uschar *sender_ident           = NULL;
 980 BOOL    sender_local           = FALSE;
 981 uschar *sender_rate            = NULL;
 982 uschar *sender_rate_limit      = NULL;
 983 uschar *sender_rate_period     = NULL;
 984 uschar *sender_rcvhost         = NULL;
 985 BOOL    sender_set_untrusted   = FALSE;
 986 uschar *sender_unqualified_hosts = NULL;
 987 uschar *sender_verify_failure = NULL;
 988 address_item *sender_verified_list  = NULL;
 989 address_item *sender_verified_failed = NULL;
 990 int     sender_verified_rc     = -1;
 991 BOOL    sender_verified_responded = FALSE;
 992 volatile  BOOL sigalrm_seen    = FALSE;
 993 uschar **sighup_argv           = NULL;
 994 int     smtp_accept_count      = 0;
 995 BOOL    smtp_accept_keepalive  = TRUE;
 996 int     smtp_accept_max        = 20;
 997 int     smtp_accept_max_nonmail= 10;
 998 uschar *smtp_accept_max_nonmail_hosts = US"*";
 999 int     smtp_accept_max_per_connection = 1000;
1000 uschar *smtp_accept_max_per_host = NULL;
1001 int     smtp_accept_queue      = 0;
1002 int     smtp_accept_queue_per_connection = 10;
1003 int     smtp_accept_reserve    = 0;
1004 uschar *smtp_active_hostname   = NULL;
1005 BOOL    smtp_authenticated     = FALSE;
1006 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1007                              "Exim $version_number $tod_full"
1008                              "\0<---------------Space to patch smtp_banner->";
1009 BOOL    smtp_batched_input     = FALSE;
1010 BOOL    smtp_check_spool_space = TRUE;
1011 uschar *smtp_command_argument  = NULL;
1012 int     smtp_connect_backlog   = 20;
1013 double  smtp_delay_mail        = 0.0;
1014 double  smtp_delay_rcpt        = 0.0;
1015 BOOL    smtp_enforce_sync      = TRUE;
1016 FILE   *smtp_in                = NULL;
1017 BOOL    smtp_input             = FALSE;
1018 int     smtp_load_reserve      = -1;
1019 int     smtp_mailcmd_count     = 0;
1020 FILE   *smtp_out               = NULL;
1021 uschar *smtp_etrn_command      = NULL;
1022 BOOL    smtp_etrn_serialize    = TRUE;
1023 int     smtp_max_synprot_errors= 3;
1024 int     smtp_max_unknown_commands = 3;
1025 uschar *smtp_ratelimit_hosts   = NULL;
1026 uschar *smtp_ratelimit_mail    = NULL;
1027 uschar *smtp_ratelimit_rcpt    = NULL;
1028 uschar *smtp_read_error        = US"";
1029 int     smtp_receive_timeout   = 5*60;
1030 uschar *smtp_reserve_hosts     = NULL;
1031 BOOL    smtp_return_error_details = FALSE;
1032 int     smtp_rlm_base          = 0;
1033 double  smtp_rlm_factor        = 0.0;
1034 int     smtp_rlm_limit         = 0;
1035 int     smtp_rlm_threshold     = INT_MAX;
1036 int     smtp_rlr_base          = 0;
1037 double  smtp_rlr_factor        = 0.0;
1038 int     smtp_rlr_limit         = 0;
1039 int     smtp_rlr_threshold     = INT_MAX;
1040 BOOL    smtp_use_pipelining    = FALSE;
1041 BOOL    smtp_use_size          = FALSE;
1042
1043 #ifdef WITH_CONTENT_SCAN
1044 uschar *spamd_address          = US"127.0.0.1 783";
1045 uschar *spam_bar               = NULL;
1046 uschar *spam_report            = NULL;
1047 uschar *spam_score             = NULL;
1048 uschar *spam_score_int         = NULL;
1049 #endif
1050 #ifdef EXPERIMENTAL_SPF
1051 uschar *spf_header_comment     = NULL;
1052 uschar *spf_received           = NULL;
1053 uschar *spf_result             = NULL;
1054 uschar *spf_smtp_comment       = NULL;
1055 #endif
1056
1057 BOOL    split_spool_directory  = FALSE;
1058 uschar *spool_directory        = US SPOOL_DIRECTORY
1059                            "\0<--------------Space to patch spool_directory->";
1060 #ifdef EXPERIMENTAL_SRS
1061 uschar *srs_config             = NULL;
1062 uschar *srs_db_address         = NULL;
1063 uschar *srs_db_key             = NULL;
1064 int     srs_hashlength         = 6;
1065 int     srs_hashmin            = -1;
1066 int     srs_maxage             = 31;
1067 uschar *srs_orig_recipient     = NULL;
1068 uschar *srs_orig_sender        = NULL;
1069 uschar *srs_recipient          = NULL;
1070 uschar *srs_secrets            = NULL;
1071 uschar *srs_status             = NULL;
1072 BOOL    srs_usehash            = TRUE;
1073 BOOL    srs_usetimestamp       = TRUE;
1074 #endif
1075 int     string_datestamp_offset= -1;
1076 BOOL    strip_excess_angle_brackets = FALSE;
1077 BOOL    strip_trailing_dot     = FALSE;
1078 uschar *submission_domain      = NULL;
1079 BOOL    submission_mode        = FALSE;
1080 BOOL    synchronous_delivery   = FALSE;
1081 BOOL    syslog_duplication     = TRUE;
1082 int     syslog_facility        = LOG_MAIL;
1083 uschar *syslog_processname     = US"exim";
1084 BOOL    syslog_timestamp       = TRUE;
1085 uschar *system_filter          = NULL;
1086
1087 uschar *system_filter_directory_transport = NULL;
1088 uschar *system_filter_file_transport = NULL;
1089 uschar *system_filter_pipe_transport = NULL;
1090 uschar *system_filter_reply_transport = NULL;
1091
1092 gid_t   system_filter_gid      = 0;
1093 BOOL    system_filter_gid_set  = FALSE;
1094 uid_t   system_filter_uid      = 0;
1095 BOOL    system_filter_uid_set  = FALSE;
1096 BOOL    system_filtering       = FALSE;
1097
1098 BOOL    tcp_nodelay            = TRUE;
1099 int     thismessage_size_limit = 0;
1100 int     timeout_frozen_after   = 0;
1101 BOOL    timestamps_utc         = FALSE;
1102
1103 transport_instance  *transports = NULL;
1104
1105 transport_instance  transport_defaults = {
1106     NULL,                     /* chain pointer */
1107     NULL,                     /* name */
1108     NULL,                     /* info */
1109     NULL,                     /* private options block pointer */
1110     NULL,                     /* driver name */
1111     NULL,                     /* setup entry point */
1112     1,                        /* batch_max */
1113     NULL,                     /* batch_id */
1114     NULL,                     /* home_dir */
1115     NULL,                     /* current_dir */
1116     TRUE,                     /* multi-domain */
1117     FALSE,                    /* overrides_hosts */
1118     100,                      /* max_addresses */
1119     500,                      /* connection_max_messages */
1120     FALSE,                    /* deliver_as_creator */
1121     FALSE,                    /* disable_logging */
1122     FALSE,                    /* initgroups */
1123     FALSE,                    /* uid_set */
1124     FALSE,                    /* gid_set */
1125     (uid_t)(-1),              /* uid */
1126     (gid_t)(-1),              /* gid */
1127     NULL,                     /* expand_uid */
1128     NULL,                     /* expand_gid */
1129     NULL,                     /* warn_message */
1130     NULL,                     /* shadow */
1131     NULL,                     /* shadow_condition */
1132     NULL,                     /* filter_command */
1133     NULL,                     /* add_headers */
1134     NULL,                     /* remove_headers */
1135     NULL,                     /* return_path */
1136     NULL,                     /* debug_string */
1137     NULL,                     /* message_size_limit */
1138     NULL,                     /* headers_rewrite */
1139     NULL,                     /* rewrite_rules */
1140     0,                        /* rewrite_existflags */
1141     300,                      /* filter_timeout */
1142     FALSE,                    /* body_only */
1143     FALSE,                    /* delivery_date_add */
1144     FALSE,                    /* envelope_to_add */
1145     FALSE,                    /* headers_only */
1146     FALSE,                    /* rcpt_include_affixes */
1147     FALSE,                    /* return_path_add */
1148     FALSE,                    /* return_output */
1149     FALSE,                    /* return_fail_output */
1150     FALSE,                    /* log_output */
1151     FALSE,                    /* log_fail_output */
1152     FALSE,                    /* log_defer_output */
1153     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1154                                  1 nor 0 so can detect unset */
1155 };
1156
1157 int     transport_count;
1158 uschar **transport_filter_argv  = NULL;
1159 int     transport_filter_timeout;
1160 BOOL    transport_filter_timed_out = FALSE;
1161 int     transport_write_timeout= 0;
1162
1163 tree_node  *tree_dns_fails     = NULL;
1164 tree_node  *tree_duplicates    = NULL;
1165 tree_node  *tree_nonrecipients = NULL;
1166 tree_node  *tree_unusable      = NULL;
1167
1168 BOOL    trusted_caller         = FALSE;
1169 gid_t  *trusted_groups         = NULL;
1170 uid_t  *trusted_users          = NULL;
1171 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1172
1173 uschar *unknown_login          = NULL;
1174 uschar *unknown_username       = NULL;
1175 uschar *untrusted_set_sender   = NULL;
1176
1177 /*  A regex for matching a "From_" line in an incoming message, in the form
1178
1179     From ph10 Fri Jan  5 12:35 GMT 1996
1180
1181 which  the "mail" commands send to the MTA (undocumented, of course), or in
1182 the  form
1183
1184     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1185
1186 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1187 Because  of variations in time formats, just match up to the minutes. That
1188 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1189 so  just require one digit for hours and minutes. The weekday is also absent
1190 in  some forms. */
1191
1192 uschar *uucp_from_pattern      = US
1193    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1194    "(?:"                                          /* Non-extracting bracket */
1195    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1196    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1197    ")"                                            /* End alternation */
1198    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1199
1200 uschar *uucp_from_sender       = US"$1";
1201
1202 uschar *warn_message_file      = NULL;
1203 uschar *warnmsg_delay          = NULL;
1204 uschar *warnmsg_recipients     = NULL;
1205 BOOL    write_rejectlog        = TRUE;
1206
1207 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1208 uschar *version_date           = US"?";
1209 uschar *version_cnumber        = US"????";
1210 uschar *version_string         = US"?";
1211
1212 int     warning_count          = 0;
1213
1214 /*  End of globals.c */