src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.28 2005/06/10 19:27:05 fanf2 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 BOOL    debug_daemon           = FALSE;
 396 int     debug_fd               = -1;
 397 FILE   *debug_file             = NULL;
 398 bit_table debug_options[]      = {
 399   { US"acl",            D_acl },
 400   { US"all",            D_all },
 401   { US"auth",           D_auth },
 402   { US"deliver",        D_deliver },
 403   { US"dns",            D_dns },
 404   { US"dnsbl",          D_dnsbl },
 405   { US"exec",           D_exec },
 406   { US"expand",         D_expand },
 407   { US"filter",         D_filter },
 408   { US"hints_lookup",   D_hints_lookup },
 409   { US"host_lookup",    D_host_lookup },
 410   { US"ident",          D_ident },
 411   { US"interface",      D_interface },
 412   { US"lists",          D_lists },
 413   { US"load",           D_load },
 414   { US"local_scan",     D_local_scan },
 415   { US"lookup",         D_lookup },
 416   { US"memory",         D_memory },
 417   { US"pid",            D_pid },
 418   { US"process_info",   D_process_info },
 419   { US"queue_run",      D_queue_run },
 420   { US"receive",        D_receive },
 421   { US"resolver",       D_resolver },
 422   { US"retry",          D_retry },
 423   { US"rewrite",        D_rewrite },
 424   { US"route",          D_route },
 425   { US"timestamp",      D_timestamp },
 426   { US"tls",            D_tls },
 427   { US"transport",      D_transport },
 428   { US"uid",            D_uid },
 429   { US"verify",         D_verify }
 430 };
 431 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 432 unsigned int debug_selector    = 0;
 433 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 434 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 435 BOOL    delivery_date_remove   = TRUE;
 436 uschar *deliver_address_data   = NULL;
 437 int     deliver_datafile       = -1;
 438 uschar *deliver_domain         = NULL;
 439 uschar *deliver_domain_data    = NULL;
 440 uschar *deliver_domain_orig    = NULL;
 441 uschar *deliver_domain_parent  = NULL;
 442 BOOL    deliver_drop_privilege = FALSE;
 443 BOOL    deliver_firsttime      = FALSE;
 444 BOOL    deliver_force          = FALSE;
 445 BOOL    deliver_freeze         = FALSE;
 446 int     deliver_frozen_at      = 0;
 447 uschar *deliver_home           = NULL;
 448 uschar *deliver_host           = NULL;
 449 uschar *deliver_host_address   = NULL;
 450 uschar *deliver_in_buffer      = NULL;
 451 ino_t   deliver_inode          = 0;
 452 uschar *deliver_localpart      = NULL;
 453 uschar *deliver_localpart_data = NULL;
 454 uschar *deliver_localpart_orig = NULL;
 455 uschar *deliver_localpart_parent = NULL;
 456 uschar *deliver_localpart_prefix = NULL;
 457 uschar *deliver_localpart_suffix = NULL;
 458 BOOL    deliver_force_thaw     = FALSE;
 459 BOOL    deliver_manual_thaw    = FALSE;
 460 uschar *deliver_out_buffer     = NULL;
 461 int     deliver_queue_load_max = -1;
 462 address_item  *deliver_recipients = NULL;
 463 uschar *deliver_selectstring   = NULL;
 464 BOOL    deliver_selectstring_regex = FALSE;
 465 uschar *deliver_selectstring_sender = NULL;
 466 BOOL    deliver_selectstring_sender_regex = FALSE;
 467 #ifdef WITH_OLD_DEMIME
 468 int     demime_errorlevel      = 0;
 469 int     demime_ok              = 0;
 470 uschar *demime_reason          = NULL;
 471 #endif
 472 BOOL    disable_logging        = FALSE;
 473
 474 #ifdef EXPERIMENTAL_DOMAINKEYS
 475 uschar *dk_signing_domain      = NULL;
 476 uschar *dk_signing_selector    = NULL;
 477 int     dk_do_verify           = 0;
 478 #endif
 479
 480 uschar *dns_again_means_nonexist = NULL;
 481 int     dns_csa_search_limit   = 5;
 482 BOOL    dns_csa_use_reverse    = TRUE;
 483 uschar *dns_ipv4_lookup        = NULL;
 484 int     dns_retrans            = 0;
 485 int     dns_retry              = 0;
 486 uschar *dnslist_domain         = NULL;
 487 uschar *dnslist_text           = NULL;
 488 uschar *dnslist_value          = NULL;
 489 tree_node *domainlist_anchor   = NULL;
 490 int     domainlist_count       = 0;
 491 BOOL    dont_deliver           = FALSE;
 492 BOOL    dot_ends               = TRUE;
 493 BOOL    drop_cr                = FALSE;         /* No longer used */
 494
 495 BOOL    enable_dollar_recipients = FALSE;
 496 BOOL    envelope_to_remove     = TRUE;
 497 int     errno_quota            = ERRNO_QUOTA;
 498 uschar *errors_copy            = NULL;
 499 int     error_handling         = ERRORS_SENDER;
 500 uschar *errors_reply_to        = NULL;
 501 int     errors_sender_rc       = EXIT_FAILURE;
 502
 503 gid_t   exim_gid               = EXIM_GID;
 504 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 505 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 506                         "\0<---------------Space to patch exim_path->";
 507 uid_t   exim_uid               = EXIM_UID;
 508 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 509 int     expand_forbid          = 0;
 510 int     expand_nlength[EXPAND_MAXN+1];
 511 int     expand_nmax            = -1;
 512 uschar *expand_nstring[EXPAND_MAXN+1];
 513 BOOL    expand_string_forcedfail = FALSE;
 514 uschar *expand_string_message;
 515 BOOL    extract_addresses_remove_arguments = TRUE;
 516 uschar *extra_local_interfaces = NULL;
 517
 518 int     fake_response          = OK;
 519 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).";
 520 int     filter_n[FILTER_VARIABLE_COUNT];
 521 BOOL    filter_running         = FALSE;
 522 int     filter_sn[FILTER_VARIABLE_COUNT];
 523 int     filter_test            = FTEST_NONE;
 524 uschar *filter_test_sfile      = NULL;
 525 uschar *filter_test_ufile      = NULL;
 526 uschar *filter_thisaddress     = NULL;
 527 int     finduser_retries       = 0;
 528 #ifdef WITH_OLD_DEMIME
 529 uschar *found_extension        = NULL;
 530 #endif
 531 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 532 uschar *freeze_tell            = NULL;
 533 uschar *fudged_queue_times     = US"";
 534
 535 uschar *gecos_name             = NULL;
 536 uschar *gecos_pattern          = NULL;
 537 rewrite_rule  *global_rewrite_rules = NULL;
 538
 539 uschar *headers_charset        = US HEADERS_CHARSET;
 540 int     header_insert_maxlen   = 64 * 1024;
 541 header_line  *header_last      = NULL;
 542 header_line  *header_list      = NULL;
 543 int     header_maxsize         = HEADER_MAXSIZE;
 544 int     header_line_maxsize    = 0;
 545
 546 header_name header_names[] = {
 547   { US"bcc",            3, TRUE,  htype_bcc },
 548   { US"cc",             2, TRUE,  htype_cc },
 549   { US"date",           4, TRUE,  htype_date },
 550   { US"delivery-date", 13, FALSE, htype_delivery_date },
 551   { US"envelope-to",   11, FALSE, htype_envelope_to },
 552   { US"from",           4, TRUE,  htype_from },
 553   { US"message-id",    10, TRUE,  htype_id },
 554   { US"received",       8, FALSE, htype_received },
 555   { US"reply-to",       8, FALSE, htype_reply_to },
 556   { US"return-path",   11, FALSE, htype_return_path },
 557   { US"sender",         6, TRUE,  htype_sender },
 558   { US"subject",        7, FALSE, htype_subject },
 559   { US"to",             2, TRUE,  htype_to }
 560 };
 561
 562 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 563
 564 BOOL    header_rewritten       = FALSE;
 565 uschar *helo_accept_junk_hosts = NULL;
 566 uschar *helo_allow_chars       = US"";
 567 uschar *helo_lookup_domains    = US"@ : @[]";
 568 uschar *helo_try_verify_hosts  = NULL;
 569 BOOL    helo_verified          = FALSE;
 570 uschar *helo_verify_hosts      = NULL;
 571 uschar *hex_digits             = US"0123456789abcdef";
 572 uschar *hold_domains           = NULL;
 573 BOOL    host_checking          = FALSE;
 574 BOOL    host_checking_callout  = FALSE;
 575 uschar *host_data              = NULL;
 576 BOOL    host_find_failed_syntax= FALSE;
 577 uschar *host_lookup            = NULL;
 578 BOOL    host_lookup_deferred   = FALSE;
 579 BOOL    host_lookup_failed     = FALSE;
 580 uschar *host_lookup_order      = US"bydns:byaddr";
 581 uschar *host_lookup_msg        = US"";
 582 int     host_number            = 0;
 583 uschar *host_number_string     = NULL;
 584 uschar *host_reject_connection = NULL;
 585 tree_node *hostlist_anchor     = NULL;
 586 int     hostlist_count         = 0;
 587 uschar *hosts_treat_as_local   = NULL;
 588 uschar *hosts_connection_nolog = NULL;
 589
 590 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 591 BOOL    ignore_fromline_local  = FALSE;
 592 uschar *ignore_fromline_hosts  = NULL;
 593 uschar *interface_address      = NULL;
 594 int     interface_port         = -1;
 595 BOOL    is_inetd               = FALSE;
 596
 597 int     journal_fd             = -1;
 598
 599 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 600
 601 uschar *eldap_dn               = NULL;
 602 int     load_average           = -2;
 603 BOOL    local_error_message    = FALSE;
 604 BOOL    local_from_check       = TRUE;
 605 uschar *local_from_prefix      = NULL;
 606 uschar *local_from_suffix      = NULL;
 607
 608 #if HAVE_IPV6
 609 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 610 #else
 611 uschar *local_interfaces       = US"0.0.0.0";
 612 #endif
 613
 614 uschar *local_scan_data        = NULL;
 615 int     local_scan_timeout     = 5*60;
 616 BOOL    local_sender_retain    = FALSE;
 617 gid_t   local_user_gid         = (gid_t)(-1);
 618 uid_t   local_user_uid         = (uid_t)(-1);
 619
 620 tree_node *localpartlist_anchor= NULL;
 621 int     localpartlist_count    = 0;
 622 uschar *log_buffer             = NULL;
 623 unsigned int log_extra_selector = LX_default;
 624 uschar *log_file_path          = US LOG_FILE_PATH
 625                            "\0<--------------Space to patch log_file_path->";
 626
 627 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 628 are the ones that get put into log_write_selector. They can be used in calls to
 629 log_write() to test for the bit. The options with LX_xxx identifiers have
 630 values greater than 0x80000000 and are put int log_extra_selector (without the
 631 top bit). They are never used in calls to log_write(), but are tested
 632 independently. This separation became necessary when the number of log
 633 selectors was getting close to filling a 32-bit word. */
 634
 635 bit_table log_options[]        = {
 636   { US"address_rewrite",              L_address_rewrite },
 637   { US"all",                          L_all },
 638   { US"all_parents",                  L_all_parents },
 639   { US"arguments",                    LX_arguments },
 640   { US"connection_reject",            L_connection_reject },
 641   { US"delay_delivery",               L_delay_delivery },
 642   { US"deliver_time",                 LX_deliver_time },
 643   { US"delivery_size",                LX_delivery_size },
 644   { US"dnslist_defer",                L_dnslist_defer },
 645   { US"etrn",                         L_etrn },
 646   { US"host_lookup_failed",           L_host_lookup_failed },
 647   { US"ident_timeout",                LX_ident_timeout },
 648   { US"incoming_interface",           LX_incoming_interface },
 649   { US"incoming_port",                LX_incoming_port },
 650   { US"lost_incoming_connection",     L_lost_incoming_connection },
 651   { US"outgoing_port",                LX_outgoing_port },
 652   { US"queue_run",                    L_queue_run },
 653   { US"queue_time",                   LX_queue_time },
 654   { US"queue_time_overall",           LX_queue_time_overall },
 655   { US"received_recipients",          LX_received_recipients },
 656   { US"received_sender",              LX_received_sender },
 657   { US"rejected_header",              LX_rejected_header },
 658   { US"rejected_headers",             LX_rejected_header },
 659   { US"retry_defer",                  L_retry_defer },
 660   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 661   { US"sender_on_delivery",           LX_sender_on_delivery },
 662   { US"size_reject",                  L_size_reject },
 663   { US"skip_delivery",                L_skip_delivery },
 664   { US"smtp_confirmation",            LX_smtp_confirmation },
 665   { US"smtp_connection",              L_smtp_connection },
 666   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 667   { US"smtp_protocol_error",          L_smtp_protocol_error },
 668   { US"smtp_syntax_error",            L_smtp_syntax_error },
 669   { US"subject",                      LX_subject },
 670   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 671   { US"tls_cipher",                   LX_tls_cipher },
 672   { US"tls_peerdn",                   LX_tls_peerdn }
 673 };
 674
 675 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 676 unsigned int log_write_selector= L_default;
 677 uschar *log_selector_string    = NULL;
 678 FILE   *log_stderr             = NULL;
 679 BOOL    log_testing_mode       = FALSE;
 680 BOOL    log_timezone           = FALSE;
 681 uschar *login_sender_address   = NULL;
 682 int     lookup_open_max        = 25;
 683 uschar *lookup_value           = NULL;
 684
 685 macro_item  *macros            = NULL;
 686 uschar *mailstore_basename     = NULL;
 687 #ifdef WITH_CONTENT_SCAN
 688 uschar *malware_name           = NULL;  /* Virus Name */
 689 #endif
 690 int     max_username_length    = 0;
 691 int     message_age            = 0;
 692 uschar *message_body           = NULL;
 693 uschar *message_body_end       = NULL;
 694 int     message_body_size      = 0;
 695 int     message_body_visible   = 500;
 696 int     message_ended          = END_NOTSTARTED;
 697 uschar *message_headers        = NULL;
 698 uschar *message_id;
 699 uschar *message_id_domain      = NULL;
 700 uschar *message_id_text        = NULL;
 701 struct timeval message_id_tv   = { 0, 0 };
 702 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 703 uschar *message_id_external;
 704 int     message_linecount      = 0;
 705 BOOL    message_logs           = TRUE;
 706 int     message_size           = 0;
 707 uschar *message_size_limit     = US"50M";
 708 uschar  message_subdir[2]      = { 0, 0 };
 709 uschar *message_reference      = NULL;
 710
 711 /* MIME ACL expandables */
 712 #ifdef WITH_CONTENT_SCAN
 713 int     mime_anomaly_level     = 0;
 714 uschar *mime_anomaly_text      = NULL;
 715 uschar *mime_boundary          = NULL;
 716 uschar *mime_charset           = NULL;
 717 uschar *mime_content_description = NULL;
 718 uschar *mime_content_disposition = NULL;
 719 uschar *mime_content_id        = NULL;
 720 unsigned int mime_content_size = 0;
 721 uschar *mime_content_transfer_encoding = NULL;
 722 uschar *mime_content_type      = NULL;
 723 uschar *mime_decoded_filename  = NULL;
 724 uschar *mime_filename          = NULL;
 725 int     mime_is_multipart      = 0;
 726 int     mime_is_coverletter    = 0;
 727 int     mime_is_rfc822         = 0;
 728 int     mime_part_count        = -1;
 729 #endif
 730
 731 BOOL    mua_wrapper            = FALSE;
 732
 733 uid_t  *never_users            = NULL;
 734 #ifdef WITH_CONTENT_SCAN
 735 BOOL    no_mbox_unspool        = FALSE;
 736 #endif
 737 BOOL    no_multiline_responses = FALSE;
 738
 739 uid_t   original_euid;
 740 gid_t   originator_gid;
 741 uschar *originator_login       = NULL;
 742 uschar *originator_name        = NULL;
 743 uid_t   originator_uid;
 744 uschar *override_local_interfaces = NULL;
 745 uschar *override_pid_file_path = NULL;
 746
 747 BOOL    parse_allow_group      = FALSE;
 748 BOOL    parse_found_group      = FALSE;
 749 uschar *percent_hack_domains   = NULL;
 750 uschar *pid_file_path          = US PID_FILE_PATH
 751                            "\0<--------------Space to patch pid_file_path->";
 752 uschar *pipelining_advertise_hosts = US"*";
 753 BOOL    preserve_message_logs  = FALSE;
 754 uschar *primary_hostname       = NULL;
 755 BOOL    print_topbitchars      = FALSE;
 756 uschar  process_info[PROCESS_INFO_SIZE];
 757 uschar *process_log_path       = NULL;
 758 BOOL    prod_requires_admin    = TRUE;
 759
 760 uschar *qualify_domain_recipient = NULL;
 761 uschar *qualify_domain_sender  = NULL;
 762 BOOL    queue_2stage           = FALSE;
 763 uschar *queue_domains          = NULL;
 764 int     queue_interval         = -1;
 765 BOOL    queue_list_requires_admin = TRUE;
 766 BOOL    queue_only             = FALSE;
 767 uschar *queue_only_file        = NULL;
 768 int     queue_only_load        = -1;
 769 BOOL    queue_only_override    = TRUE;
 770 BOOL    queue_only_policy      = FALSE;
 771 BOOL    queue_run_first_delivery = FALSE;
 772 BOOL    queue_run_force        = FALSE;
 773 BOOL    queue_run_in_order     = FALSE;
 774 BOOL    queue_run_local        = FALSE;
 775 int     queue_run_max          = 5;
 776 pid_t   queue_run_pid          = (pid_t)0;
 777 int     queue_run_pipe         = -1;
 778 BOOL    queue_running          = FALSE;
 779 BOOL    queue_smtp             = FALSE;
 780 uschar *queue_smtp_domains     = NULL;
 781
 782 unsigned int random_seed       = 0;
 783 tree_node *ratelimiters_cmd    = NULL;
 784 tree_node *ratelimiters_conn   = NULL;
 785 tree_node *ratelimiters_mail   = NULL;
 786 uschar *raw_active_hostname    = NULL;
 787 uschar *raw_sender             = NULL;
 788 uschar **raw_recipients        = NULL;
 789 int     raw_recipients_count   = 0;
 790
 791 int     rcpt_count             = 0;
 792 int     rcpt_fail_count        = 0;
 793 int     rcpt_defer_count       = 0;
 794 gid_t   real_gid;
 795 uid_t   real_uid;
 796 BOOL    really_exim            = TRUE;
 797 BOOL    receive_call_bombout   = FALSE;
 798 int     receive_linecount      = 0;
 799 int     receive_messagecount   = 0;
 800 int     receive_timeout        = 0;
 801 int     received_count         = 0;
 802 uschar *received_for           = NULL;
 803
 804 /*  This is the default text for Received headers generated by Exim. The
 805 date  will be automatically added on the end. */
 806
 807 uschar *received_header_text   = US
 808      "Received: "
 809      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 810      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 811      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 812      "by $primary_hostname "
 813      "${if def:received_protocol {with $received_protocol}} "
 814      #ifdef SUPPORT_TLS
 815      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 816      #endif
 817      "(Exim $version_number)\n\t"
 818      "id $message_id"
 819      "${if def:received_for {\n\tfor $received_for}}"
 820      "\0<---------------Space to patch received_header_text->";
 821
 822 int     received_headers_max   = 30;
 823 uschar *received_protocol      = NULL;
 824 int     received_time          = 0;
 825 uschar *recipient_data         = NULL;
 826 uschar *recipient_unqualified_hosts = NULL;
 827 uschar *recipient_verify_failure = NULL;
 828 int     recipients_count       = 0;
 829 BOOL    recipients_discarded   = FALSE;
 830 recipient_item  *recipients_list = NULL;
 831 int     recipients_list_max    = 0;
 832 int     recipients_max         = 0;
 833 BOOL    recipients_max_reject  = FALSE;
 834 const pcre *regex_AUTH         = NULL;
 835 const pcre *regex_check_dns_names = NULL;
 836 const pcre *regex_From         = NULL;
 837 const pcre *regex_PIPELINING   = NULL;
 838 const pcre *regex_SIZE         = NULL;
 839 const pcre *regex_ismsgid      = NULL;
 840 #ifdef WITH_CONTENT_SCAN
 841 uschar *regex_match_string     = NULL;
 842 #endif
 843 int     remote_delivery_count  = 0;
 844 int     remote_max_parallel    = 2;
 845 uschar *remote_sort_domains    = NULL;
 846 int     retry_data_expire      = 7*24*60*60;
 847 int     retry_interval_max     = 24*60*60;
 848 int     retry_maximum_timeout  = 0;        /* set from retry config */
 849 retry_config  *retries         = NULL;
 850 uschar *return_path            = NULL;
 851 BOOL    return_path_remove     = TRUE;
 852 int     rewrite_existflags     = 0;
 853 uschar *rfc1413_hosts          = US"*";
 854 int     rfc1413_query_timeout  = 30;
 855 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 856 uid_t   root_uid               = ROOT_UID;
 857
 858 router_instance  *routers  = NULL;
 859 router_instance  router_defaults = {
 860     NULL,                      /* chain pointer */
 861     NULL,                      /* name */
 862     NULL,                      /* info */
 863     NULL,                      /* private options block pointer */
 864     NULL,                      /* driver name */
 865
 866     NULL,                      /* address_data */
 867 #ifdef EXPERIMENTAL_BRIGHTMAIL
 868     NULL,                      /* bmi_rule */
 869 #endif
 870     NULL,                      /* cannot_route_message */
 871     NULL,                      /* condition */
 872     NULL,                      /* current_directory */
 873     NULL,                      /* debug_string */
 874     NULL,                      /* domains */
 875     NULL,                      /* errors_to */
 876     NULL,                      /* expand_gid */
 877     NULL,                      /* expand_uid */
 878     NULL,                      /* expand_more */
 879     NULL,                      /* expand_unseen */
 880     NULL,                      /* extra_headers */
 881     NULL,                      /* fallback_hosts */
 882     NULL,                      /* home_directory */
 883     NULL,                      /* ignore_target_hosts */
 884     NULL,                      /* local_parts */
 885     NULL,                      /* pass_router_name */
 886     NULL,                      /* prefix */
 887     NULL,                      /* redirect_router_name */
 888     NULL,                      /* remove_headers */
 889     NULL,                      /* require_files */
 890     NULL,                      /* router_home_directory */
 891     US"freeze",                /* self */
 892     NULL,                      /* senders */
 893     NULL,                      /* suffix */
 894     NULL,                      /* translate_ip_address */
 895     NULL,                      /* transport_name */
 896
 897     TRUE,                      /* address_test */
 898 #ifdef EXPERIMENTAL_BRIGHTMAIL
 899     FALSE,                     /* bmi_deliver_alternate */
 900     FALSE,                     /* bmi_deliver_default */
 901     FALSE,                     /* bmi_dont_deliver */
 902 #endif
 903     TRUE,                      /* expn */
 904     FALSE,                     /* caseful_local_part */
 905     FALSE,                     /* check_local_user */
 906     FALSE,                     /* disable_logging */
 907     FALSE,                     /* fail_verify_recipient */
 908     FALSE,                     /* fail_verify_sender */
 909     FALSE,                     /* gid_set */
 910     FALSE,                     /* initgroups */
 911     TRUE_UNSET,                /* log_as_local */
 912     TRUE,                      /* more */
 913     FALSE,                     /* pass_on_timeout */
 914     FALSE,                     /* prefix_optional */
 915     TRUE,                      /* repeat_use */
 916     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 917     FALSE,                     /* same_domain_copy_routing */
 918     FALSE,                     /* self_rewrite */
 919     FALSE,                     /* suffix_optional */
 920     FALSE,                     /* verify_only */
 921     TRUE,                      /* verify_recipient */
 922     TRUE,                      /* verify_sender */
 923     FALSE,                     /* uid_set */
 924     FALSE,                     /* unseen */
 925
 926     self_freeze,               /* self_code */
 927     (uid_t)(-1),               /* uid */
 928     (gid_t)(-1),               /* gid */
 929
 930     NULL,                      /* fallback_hostlist */
 931     NULL,                      /* transport instance */
 932     NULL,                      /* pass_router */
 933     NULL                       /* redirect_router */
 934 };
 935
 936 ip_address_item *running_interfaces = NULL;
 937 BOOL    running_in_test_harness = FALSE;
 938
 939 /* This is a weird one. The following string gets patched in the binary by the
 940 script that sets up a copy of Exim for running in the test harness. It seems
 941 that compilers are now clever, and share constant strings if they can.
 942 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 943 make use of the end of this string in order to save space. So the patching then
 944 wrecks this. We default this optimization by adding some additional characters
 945 onto the end of the string. */
 946
 947 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 948
 949 int     runrc                  = 0;
 950
 951 uschar *search_error_message   = NULL;
 952 BOOL    search_find_defer      = FALSE;
 953 uschar *self_hostname          = NULL;
 954 uschar *sender_address         = NULL;
 955 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 956 uschar *sender_address_data    = NULL;
 957 BOOL    sender_address_forced  = FALSE;
 958 uschar *sender_address_unrewritten = NULL;
 959 uschar *sender_data            = NULL;
 960 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 961 uschar *sender_fullhost        = NULL;
 962 uschar *sender_helo_name       = NULL;
 963 uschar **sender_host_aliases   = &no_aliases;
 964 uschar *sender_host_address    = NULL;
 965 uschar *sender_host_authenticated = NULL;
 966 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 967 uschar *sender_host_name       = NULL;
 968 int     sender_host_port       = 0;
 969 BOOL    sender_host_notsocket  = FALSE;
 970 BOOL    sender_host_unknown    = FALSE;
 971 uschar *sender_ident           = NULL;
 972 BOOL    sender_local           = FALSE;
 973 uschar *sender_rate            = NULL;
 974 uschar *sender_rate_limit      = NULL;
 975 uschar *sender_rate_period     = NULL;
 976 uschar *sender_rcvhost         = NULL;
 977 BOOL    sender_set_untrusted   = FALSE;
 978 uschar *sender_unqualified_hosts = NULL;
 979 uschar *sender_verify_failure = NULL;
 980 address_item *sender_verified_list  = NULL;
 981 address_item *sender_verified_failed = NULL;
 982 int     sender_verified_rc     = -1;
 983 BOOL    sender_verified_responded = FALSE;
 984 volatile  BOOL sigalrm_seen    = FALSE;
 985 uschar **sighup_argv           = NULL;
 986 int     smtp_accept_count      = 0;
 987 BOOL    smtp_accept_keepalive  = TRUE;
 988 int     smtp_accept_max        = 20;
 989 int     smtp_accept_max_nonmail= 10;
 990 uschar *smtp_accept_max_nonmail_hosts = US"*";
 991 int     smtp_accept_max_per_connection = 1000;
 992 uschar *smtp_accept_max_per_host = NULL;
 993 int     smtp_accept_queue      = 0;
 994 int     smtp_accept_queue_per_connection = 10;
 995 int     smtp_accept_reserve    = 0;
 996 uschar *smtp_active_hostname   = NULL;
 997 BOOL    smtp_authenticated     = FALSE;
 998 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
 999                              "Exim $version_number $tod_full"
1000                              "\0<---------------Space to patch smtp_banner->";
1001 BOOL    smtp_batched_input     = FALSE;
1002 BOOL    smtp_check_spool_space = TRUE;
1003 uschar *smtp_command_argument  = NULL;
1004 int     smtp_connect_backlog   = 20;
1005 double  smtp_delay_mail        = 0.0;
1006 double  smtp_delay_rcpt        = 0.0;
1007 BOOL    smtp_enforce_sync      = TRUE;
1008 FILE   *smtp_in                = NULL;
1009 BOOL    smtp_input             = FALSE;
1010 int     smtp_load_reserve      = -1;
1011 int     smtp_mailcmd_count     = 0;
1012 FILE   *smtp_out               = NULL;
1013 uschar *smtp_etrn_command      = NULL;
1014 BOOL    smtp_etrn_serialize    = TRUE;
1015 int     smtp_max_synprot_errors= 3;
1016 int     smtp_max_unknown_commands = 3;
1017 uschar *smtp_ratelimit_hosts   = NULL;
1018 uschar *smtp_ratelimit_mail    = NULL;
1019 uschar *smtp_ratelimit_rcpt    = NULL;
1020 uschar *smtp_read_error        = US"";
1021 int     smtp_receive_timeout   = 5*60;
1022 uschar *smtp_reserve_hosts     = NULL;
1023 BOOL    smtp_return_error_details = FALSE;
1024 int     smtp_rlm_base          = 0;
1025 double  smtp_rlm_factor        = 0.0;
1026 int     smtp_rlm_limit         = 0;
1027 int     smtp_rlm_threshold     = INT_MAX;
1028 int     smtp_rlr_base          = 0;
1029 double  smtp_rlr_factor        = 0.0;
1030 int     smtp_rlr_limit         = 0;
1031 int     smtp_rlr_threshold     = INT_MAX;
1032 BOOL    smtp_use_pipelining    = FALSE;
1033 BOOL    smtp_use_size          = FALSE;
1034
1035 #ifdef WITH_CONTENT_SCAN
1036 uschar *spamd_address          = US"127.0.0.1 783";
1037 uschar *spam_bar               = NULL;
1038 uschar *spam_report            = NULL;
1039 uschar *spam_score             = NULL;
1040 uschar *spam_score_int         = NULL;
1041 #endif
1042 #ifdef EXPERIMENTAL_SPF
1043 uschar *spf_header_comment     = NULL;
1044 uschar *spf_received           = NULL;
1045 uschar *spf_result             = NULL;
1046 uschar *spf_smtp_comment       = NULL;
1047 #endif
1048
1049 BOOL    split_spool_directory  = FALSE;
1050 uschar *spool_directory        = US SPOOL_DIRECTORY
1051                            "\0<--------------Space to patch spool_directory->";
1052 #ifdef EXPERIMENTAL_SRS
1053 uschar *srs_config             = NULL;
1054 uschar *srs_db_address         = NULL;
1055 uschar *srs_db_key             = NULL;
1056 int     srs_hashlength         = 6;
1057 int     srs_hashmin            = -1;
1058 int     srs_maxage             = 31;
1059 uschar *srs_orig_recipient     = NULL;
1060 uschar *srs_orig_sender        = NULL;
1061 uschar *srs_recipient          = NULL;
1062 uschar *srs_secrets            = NULL;
1063 uschar *srs_status             = NULL;
1064 BOOL    srs_usehash            = TRUE;
1065 BOOL    srs_usetimestamp       = TRUE;
1066 #endif
1067 int     string_datestamp_offset= -1;
1068 BOOL    strip_excess_angle_brackets = FALSE;
1069 BOOL    strip_trailing_dot     = FALSE;
1070 uschar *submission_domain      = NULL;
1071 BOOL    submission_mode        = FALSE;
1072 BOOL    synchronous_delivery   = FALSE;
1073 BOOL    syslog_duplication     = TRUE;
1074 int     syslog_facility        = LOG_MAIL;
1075 uschar *syslog_processname     = US"exim";
1076 BOOL    syslog_timestamp       = TRUE;
1077 uschar *system_filter          = NULL;
1078
1079 uschar *system_filter_directory_transport = NULL;
1080 uschar *system_filter_file_transport = NULL;
1081 uschar *system_filter_pipe_transport = NULL;
1082 uschar *system_filter_reply_transport = NULL;
1083
1084 gid_t   system_filter_gid      = 0;
1085 BOOL    system_filter_gid_set  = FALSE;
1086 uid_t   system_filter_uid      = 0;
1087 BOOL    system_filter_uid_set  = FALSE;
1088 BOOL    system_filtering       = FALSE;
1089
1090 BOOL    tcp_nodelay            = TRUE;
1091 int     thismessage_size_limit = 0;
1092 int     timeout_frozen_after   = 0;
1093 BOOL    timestamps_utc         = FALSE;
1094
1095 transport_instance  *transports = NULL;
1096
1097 transport_instance  transport_defaults = {
1098     NULL,                     /* chain pointer */
1099     NULL,                     /* name */
1100     NULL,                     /* info */
1101     NULL,                     /* private options block pointer */
1102     NULL,                     /* driver name */
1103     NULL,                     /* setup entry point */
1104     1,                        /* batch_max */
1105     NULL,                     /* batch_id */
1106     NULL,                     /* home_dir */
1107     NULL,                     /* current_dir */
1108     TRUE,                     /* multi-domain */
1109     FALSE,                    /* overrides_hosts */
1110     100,                      /* max_addresses */
1111     500,                      /* connection_max_messages */
1112     FALSE,                    /* deliver_as_creator */
1113     FALSE,                    /* disable_logging */
1114     FALSE,                    /* initgroups */
1115     FALSE,                    /* uid_set */
1116     FALSE,                    /* gid_set */
1117     (uid_t)(-1),              /* uid */
1118     (gid_t)(-1),              /* gid */
1119     NULL,                     /* expand_uid */
1120     NULL,                     /* expand_gid */
1121     NULL,                     /* warn_message */
1122     NULL,                     /* shadow */
1123     NULL,                     /* shadow_condition */
1124     NULL,                     /* filter_command */
1125     NULL,                     /* add_headers */
1126     NULL,                     /* remove_headers */
1127     NULL,                     /* return_path */
1128     NULL,                     /* debug_string */
1129     NULL,                     /* message_size_limit */
1130     NULL,                     /* headers_rewrite */
1131     NULL,                     /* rewrite_rules */
1132     0,                        /* rewrite_existflags */
1133     300,                      /* filter_timeout */
1134     FALSE,                    /* body_only */
1135     FALSE,                    /* delivery_date_add */
1136     FALSE,                    /* envelope_to_add */
1137     FALSE,                    /* headers_only */
1138     FALSE,                    /* rcpt_include_affixes */
1139     FALSE,                    /* return_path_add */
1140     FALSE,                    /* return_output */
1141     FALSE,                    /* return_fail_output */
1142     FALSE,                    /* log_output */
1143     FALSE,                    /* log_fail_output */
1144     FALSE,                    /* log_defer_output */
1145     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1146                                  1 nor 0 so can detect unset */
1147 };
1148
1149 int     transport_count;
1150 uschar **transport_filter_argv  = NULL;
1151 int     transport_filter_timeout;
1152 BOOL    transport_filter_timed_out = FALSE;
1153 int     transport_write_timeout= 0;
1154
1155 tree_node  *tree_dns_fails     = NULL;
1156 tree_node  *tree_duplicates    = NULL;
1157 tree_node  *tree_nonrecipients = NULL;
1158 tree_node  *tree_unusable      = NULL;
1159
1160 BOOL    trusted_caller         = FALSE;
1161 gid_t  *trusted_groups         = NULL;
1162 uid_t  *trusted_users          = NULL;
1163 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1164
1165 uschar *unknown_login          = NULL;
1166 uschar *unknown_username       = NULL;
1167 uschar *untrusted_set_sender   = NULL;
1168
1169 /*  A regex for matching a "From_" line in an incoming message, in the form
1170
1171     From ph10 Fri Jan  5 12:35 GMT 1996
1172
1173 which  the "mail" commands send to the MTA (undocumented, of course), or in
1174 the  form
1175
1176     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1177
1178 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1179 Because  of variations in time formats, just match up to the minutes. That
1180 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1181 so  just require one digit for hours and minutes. The weekday is also absent
1182 in  some forms. */
1183
1184 uschar *uucp_from_pattern      = US
1185    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1186    "(?:"                                          /* Non-extracting bracket */
1187    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1188    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1189    ")"                                            /* End alternation */
1190    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1191
1192 uschar *uucp_from_sender       = US"$1";
1193
1194 uschar *warn_message_file      = NULL;
1195 uschar *warnmsg_delay          = NULL;
1196 uschar *warnmsg_recipients     = NULL;
1197 BOOL    write_rejectlog        = TRUE;
1198
1199 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2005";
1200 uschar *version_date           = US"?";
1201 uschar *version_cnumber        = US"????";
1202 uschar *version_string         = US"?";
1203
1204 int     warning_count          = 0;
1205
1206 /*  End of globals.c */