src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.63 2007/01/18 15:35:42 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   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_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_condition)) },
  43   { "server_debug_print", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_debug_string)) },
  45   { "server_mail_auth_condition", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  47   { "server_set_id", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, set_id)) }
  49 };
  50
  51 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  52
  53 /* An empty host aliases list. */
  54
  55 uschar *no_aliases             = NULL;
  56
  57
  58 /* For comments on these variables, see globals.h. I'm too idle to
  59 duplicate them here... */
  60
  61 #ifdef EXIM_PERL
  62 uschar *opt_perl_startup       = NULL;
  63 BOOL    opt_perl_at_start      = FALSE;
  64 BOOL    opt_perl_started       = FALSE;
  65 #endif
  66
  67 #ifdef EXPAND_DLFUNC
  68 tree_node *dlobj_anchor        = NULL;
  69 #endif
  70
  71 #ifdef LOOKUP_IBASE
  72 uschar *ibase_servers          = NULL;
  73 #endif
  74
  75 #ifdef LOOKUP_LDAP
  76 uschar *eldap_default_servers  = NULL;
  77 int     eldap_version          = -1;
  78 #endif
  79
  80 #ifdef LOOKUP_MYSQL
  81 uschar *mysql_servers          = NULL;
  82 #endif
  83
  84 #ifdef LOOKUP_ORACLE
  85 uschar *oracle_servers         = NULL;
  86 #endif
  87
  88 #ifdef LOOKUP_PGSQL
  89 uschar *pgsql_servers          = NULL;
  90 #endif
  91
  92 #ifdef LOOKUP_SQLITE
  93 int     sqlite_lock_timeout    = 5;
  94 #endif
  95
  96 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  97 BOOL    move_frozen_messages   = FALSE;
  98 #endif
  99
 100 /* These variables are outside the #ifdef because it keeps the code less
 101 cluttered in several places (e.g. during logging) if we can always refer to
 102 them. Also, the tls_ variables are now always visible. */
 103
 104 BOOL    tls_active             = -1;
 105 BOOL    tls_certificate_verified = FALSE;
 106 uschar *tls_cipher             = NULL;
 107 BOOL    tls_on_connect         = FALSE;
 108 uschar *tls_on_connect_ports   = NULL;
 109 uschar *tls_peerdn             = NULL;
 110
 111 #ifdef SUPPORT_TLS
 112 uschar *gnutls_require_mac     = NULL;
 113 uschar *gnutls_require_kx      = NULL;
 114 uschar *gnutls_require_proto   = NULL;
 115 const pcre *regex_STARTTLS     = NULL;
 116 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 117 uschar *tls_certificate        = NULL;
 118 uschar *tls_crl                = NULL;
 119 uschar *tls_dhparam            = NULL;
 120 BOOL    tls_offered            = FALSE;
 121 uschar *tls_privatekey         = NULL;
 122 BOOL    tls_remember_esmtp     = FALSE;
 123 uschar *tls_require_ciphers    = NULL;
 124 uschar *tls_try_verify_hosts   = NULL;
 125 uschar *tls_verify_certificates= NULL;
 126 uschar *tls_verify_hosts       = NULL;
 127 #endif
 128
 129
 130 /* Input-reading functions for messages, so we can use special ones for
 131 incoming TCP/IP. The defaults use stdin. We never need these for any
 132 stand-alone tests. */
 133
 134 #ifndef STAND_ALONE
 135 int (*receive_getc)(void)      = stdin_getc;
 136 int (*receive_ungetc)(int)     = stdin_ungetc;
 137 int (*receive_feof)(void)      = stdin_feof;
 138 int (*receive_ferror)(void)    = stdin_ferror;
 139 #endif
 140
 141
 142 /* List of per-address expansion variables for clearing and saving/restoring
 143 when verifying one address while routing/verifying another. We have to have
 144 the size explicit, because it is referenced from more than one module. */
 145
 146 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 147   &deliver_address_data,
 148   &deliver_domain,
 149   &deliver_domain_data,
 150   &deliver_domain_orig,
 151   &deliver_domain_parent,
 152   &deliver_localpart,
 153   &deliver_localpart_data,
 154   &deliver_localpart_orig,
 155   &deliver_localpart_parent,
 156   &deliver_localpart_prefix,
 157   &deliver_localpart_suffix,
 158   (uschar **)(&deliver_recipients),
 159   &deliver_host,
 160   &deliver_home,
 161   &address_file,
 162   &address_pipe,
 163   &self_hostname,
 164   NULL };
 165
 166 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 167
 168 /* General global variables */
 169
 170 header_line *acl_added_headers = NULL;
 171 tree_node *acl_anchor          = NULL;
 172 uschar *acl_not_smtp           = NULL;
 173 #ifdef WITH_CONTENT_SCAN
 174 uschar *acl_not_smtp_mime      = NULL;
 175 #endif
 176 uschar *acl_not_smtp_start     = NULL;
 177 uschar *acl_smtp_auth          = NULL;
 178 uschar *acl_smtp_connect       = NULL;
 179 uschar *acl_smtp_data          = NULL;
 180 uschar *acl_smtp_etrn          = NULL;
 181 uschar *acl_smtp_expn          = NULL;
 182 uschar *acl_smtp_helo          = NULL;
 183 uschar *acl_smtp_mail          = NULL;
 184 uschar *acl_smtp_mailauth      = NULL;
 185 #ifdef WITH_CONTENT_SCAN
 186 uschar *acl_smtp_mime          = NULL;
 187 #endif
 188 uschar *acl_smtp_predata       = NULL;
 189 uschar *acl_smtp_quit          = NULL;
 190 uschar *acl_smtp_rcpt          = NULL;
 191 uschar *acl_smtp_starttls      = NULL;
 192 uschar *acl_smtp_vrfy          = NULL;
 193 BOOL    acl_temp_details       = FALSE;
 194 tree_node *acl_var_c           = NULL;
 195 tree_node *acl_var_m           = NULL;
 196 uschar *acl_verify_message     = NULL;
 197 string_item *acl_warn_logged   = NULL;
 198
 199 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 200 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 201
 202 uschar *acl_wherenames[]       = { US"RCPT",
 203                                    US"MAIL",
 204                                    US"PREDATA",
 205                                    US"MIME",
 206                                    US"DATA",
 207                                    US"non-SMTP",
 208                                    US"AUTH",
 209                                    US"connection",
 210                                    US"ETRN",
 211                                    US"EXPN",
 212                                    US"EHLO or HELO",
 213                                    US"MAILAUTH",
 214                                    US"non-SMTP-start",
 215                                    US"QUIT",
 216                                    US"STARTTLS",
 217                                    US"VRFY"
 218                                  };
 219
 220 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 221                                    US"550",     /* MAIL */
 222                                    US"550",     /* PREDATA */
 223                                    US"550",     /* MIME */
 224                                    US"550",     /* DATA */
 225                                    US"0",       /* not SMTP; not relevant */
 226                                    US"503",     /* AUTH */
 227                                    US"550",     /* connect */
 228                                    US"458",     /* ETRN */
 229                                    US"550",     /* EXPN */
 230                                    US"550",     /* HELO/EHLO */
 231                                    US"0",       /* MAILAUTH; not relevant */
 232                                    US"0",       /* not SMTP; not relevant */
 233                                    US"0",       /* QUIT; not relevant */
 234                                    US"550",     /* STARTTLS */
 235                                    US"252"      /* VRFY */
 236                                  };
 237
 238 BOOL    active_local_from_check = FALSE;
 239 BOOL    active_local_sender_retain = FALSE;
 240 BOOL    accept_8bitmime        = FALSE;
 241 address_item  *addr_duplicate  = NULL;
 242
 243 address_item address_defaults = {
 244   NULL,                 /* next */
 245   NULL,                 /* parent */
 246   NULL,                 /* first */
 247   NULL,                 /* dupof */
 248   NULL,                 /* start_router */
 249   NULL,                 /* router */
 250   NULL,                 /* transport */
 251   NULL,                 /* host_list */
 252   NULL,                 /* host_used */
 253   NULL,                 /* fallback_hosts */
 254   NULL,                 /* reply */
 255   NULL,                 /* retries */
 256   NULL,                 /* address */
 257   NULL,                 /* unique */
 258   NULL,                 /* cc_local_part */
 259   NULL,                 /* lc_local_part */
 260   NULL,                 /* local_part */
 261   NULL,                 /* prefix */
 262   NULL,                 /* suffix */
 263   NULL,                 /* domain */
 264   NULL,                 /* address_retry_key */
 265   NULL,                 /* domain_retry_key */
 266   NULL,                 /* current_dir */
 267   NULL,                 /* home_dir */
 268   NULL,                 /* message */
 269   NULL,                 /* user_message */
 270   NULL,                 /* onetime_parent */
 271   NULL,                 /* pipe_expandn */
 272   NULL,                 /* return_filename */
 273   NULL,                 /* self_hostname */
 274   NULL,                 /* shadow_message */
 275   #ifdef SUPPORT_TLS
 276   NULL,                 /* cipher */
 277   NULL,                 /* peerdn */
 278   #endif
 279   (uid_t)(-1),          /* uid */
 280   (gid_t)(-1),          /* gid */
 281   0,                    /* flags */
 282   { 0 },                /* domain_cache - any larger array should be zeroed */
 283   { 0 },                /* localpart_cache - ditto */
 284   -1,                   /* mode */
 285   0,                    /* more_errno */
 286   ERRNO_UNKNOWNERROR,   /* basic_errno */
 287   0,                    /* child_count */
 288   -1,                   /* return_file */
 289   SPECIAL_NONE,         /* special_action */
 290   DEFER,                /* transport_return */
 291   {                     /* fields that are propagated to children */
 292     NULL,               /* address_data */
 293     NULL,               /* domain_data */
 294     NULL,               /* localpart_data */
 295     NULL,               /* errors_address */
 296     NULL,               /* extra_headers */
 297     NULL,               /* remove_headers */
 298 #ifdef EXPERIMENTAL_SRS
 299     NULL,               /* srs_sender */
 300 #endif
 301   }
 302 };
 303
 304 uschar *address_file           = NULL;
 305 uschar *address_pipe           = NULL;
 306 BOOL    address_test_mode      = FALSE;
 307 tree_node *addresslist_anchor  = NULL;
 308 int     addresslist_count      = 0;
 309 gid_t  *admin_groups           = NULL;
 310 BOOL    admin_user             = FALSE;
 311 BOOL    allow_auth_unadvertised= FALSE;
 312 BOOL    allow_domain_literals  = FALSE;
 313 BOOL    allow_mx_to_ip         = FALSE;
 314 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 315 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 316 BOOL    allow_utf8_domains     = FALSE;
 317 uschar *authenticated_id       = NULL;
 318 uschar *authenticated_sender   = NULL;
 319 BOOL    authentication_failed  = FALSE;
 320 auth_instance  *auths          = NULL;
 321 uschar *auth_advertise_hosts   = US"*";
 322 auth_instance auth_defaults    = {
 323     NULL,                      /* chain pointer */
 324     NULL,                      /* name */
 325     NULL,                      /* info */
 326     NULL,                      /* private options block pointer */
 327     NULL,                      /* driver_name */
 328     NULL,                      /* advertise_condition */
 329     NULL,                      /* public_name */
 330     NULL,                      /* set_id */
 331     NULL,                      /* server_mail_auth_condition */
 332     NULL,                      /* server_debug_string */
 333     NULL,                      /* server_condition */
 334     FALSE,                     /* client */
 335     FALSE,                     /* server */
 336     FALSE                      /* advertised */
 337 };
 338
 339 uschar *auth_defer_msg         = US"reason not recorded";
 340 uschar *auth_defer_user_msg    = US"";
 341 uschar *auth_vars[AUTH_VARS];
 342 int     auto_thaw              = 0;
 343 #ifdef WITH_CONTENT_SCAN
 344 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 345 #endif
 346
 347 BOOL    background_daemon      = TRUE;
 348
 349 #if BASE_62 == 62
 350 uschar *base62_chars=
 351     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 352 #else
 353 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 354 #endif
 355
 356 uschar *bi_command             = NULL;
 357 uschar *big_buffer             = NULL;
 358 int     big_buffer_size        = BIG_BUFFER_SIZE;
 359 #ifdef EXPERIMENTAL_BRIGHTMAIL
 360 uschar *bmi_alt_location       = NULL;
 361 uschar *bmi_base64_tracker_verdict = NULL;
 362 uschar *bmi_base64_verdict     = NULL;
 363 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 364 int     bmi_deliver            = 1;
 365 int     bmi_run                = 0;
 366 uschar *bmi_verdicts           = NULL;
 367 #endif
 368 int     body_linecount         = 0;
 369 int     body_zerocount         = 0;
 370 uschar *bounce_message_file    = NULL;
 371 uschar *bounce_message_text    = NULL;
 372 uschar *bounce_recipient       = NULL;
 373 BOOL    bounce_return_body     = TRUE;
 374 BOOL    bounce_return_message  = TRUE;
 375 int     bounce_return_size_limit = 100*1024;
 376 uschar *bounce_sender_authentication = NULL;
 377 int     bsmtp_transaction_linecount = 0;
 378
 379 int     callout_cache_domain_positive_expire = 7*24*60*60;
 380 int     callout_cache_domain_negative_expire = 3*60*60;
 381 int     callout_cache_positive_expire = 24*60*60;
 382 int     callout_cache_negative_expire = 2*60*60;
 383 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 384 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 385 int     check_log_inodes       = 0;
 386 int     check_log_space        = 0;
 387 BOOL    check_rfc2047_length   = TRUE;
 388 int     check_spool_inodes     = 0;
 389 int     check_spool_space      = 0;
 390 int     clmacro_count          = 0;
 391 uschar *clmacros[MAX_CLMACROS];
 392 BOOL    config_changed         = FALSE;
 393 FILE   *config_file            = NULL;
 394 uschar *config_filename        = NULL;
 395 int     config_lineno          = 0;
 396 #ifdef CONFIGURE_GROUP
 397 gid_t   config_gid             = CONFIGURE_GROUP;
 398 #endif
 399 uschar *config_main_filelist   = US CONFIGURE_FILE
 400                          "\0<-----------Space to patch configure_filename->";
 401 uschar *config_main_filename   = NULL;
 402
 403 #ifdef CONFIGURE_OWNER
 404 uid_t   config_uid             = CONFIGURE_OWNER;
 405 #endif
 406
 407 int     connection_max_messages= -1;
 408 uschar *continue_hostname      = NULL;
 409 uschar *continue_host_address  = NULL;
 410 BOOL    continue_more          = FALSE;
 411 int     continue_sequence      = 1;
 412 uschar *continue_transport     = NULL;
 413
 414 uschar *csa_status             = NULL;
 415
 416 BOOL    daemon_listen          = FALSE;
 417 uschar *daemon_smtp_port       = US"smtp";
 418 int     daemon_startup_retries = 9;
 419 int     daemon_startup_sleep   = 30;
 420 BOOL    debug_daemon           = FALSE;
 421 int     debug_fd               = -1;
 422 FILE   *debug_file             = NULL;
 423 bit_table debug_options[]      = {
 424   { US"acl",            D_acl },
 425   { US"all",            D_all },
 426   { US"auth",           D_auth },
 427   { US"deliver",        D_deliver },
 428   { US"dns",            D_dns },
 429   { US"dnsbl",          D_dnsbl },
 430   { US"exec",           D_exec },
 431   { US"expand",         D_expand },
 432   { US"filter",         D_filter },
 433   { US"hints_lookup",   D_hints_lookup },
 434   { US"host_lookup",    D_host_lookup },
 435   { US"ident",          D_ident },
 436   { US"interface",      D_interface },
 437   { US"lists",          D_lists },
 438   { US"load",           D_load },
 439   { US"local_scan",     D_local_scan },
 440   { US"lookup",         D_lookup },
 441   { US"memory",         D_memory },
 442   { US"pid",            D_pid },
 443   { US"process_info",   D_process_info },
 444   { US"queue_run",      D_queue_run },
 445   { US"receive",        D_receive },
 446   { US"resolver",       D_resolver },
 447   { US"retry",          D_retry },
 448   { US"rewrite",        D_rewrite },
 449   { US"route",          D_route },
 450   { US"timestamp",      D_timestamp },
 451   { US"tls",            D_tls },
 452   { US"transport",      D_transport },
 453   { US"uid",            D_uid },
 454   { US"verify",         D_verify }
 455 };
 456 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 457 unsigned int debug_selector    = 0;
 458 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 459 uschar *delay_warning_condition=
 460   US"${if or {"
 461             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 462             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 463             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 464             "} {no}{yes}}";
 465 BOOL    delivery_date_remove   = TRUE;
 466 uschar *deliver_address_data   = NULL;
 467 int     deliver_datafile       = -1;
 468 uschar *deliver_domain         = NULL;
 469 uschar *deliver_domain_data    = NULL;
 470 uschar *deliver_domain_orig    = NULL;
 471 uschar *deliver_domain_parent  = NULL;
 472 BOOL    deliver_drop_privilege = FALSE;
 473 BOOL    deliver_firsttime      = FALSE;
 474 BOOL    deliver_force          = FALSE;
 475 BOOL    deliver_freeze         = FALSE;
 476 int     deliver_frozen_at      = 0;
 477 uschar *deliver_home           = NULL;
 478 uschar *deliver_host           = NULL;
 479 uschar *deliver_host_address   = NULL;
 480 uschar *deliver_in_buffer      = NULL;
 481 ino_t   deliver_inode          = 0;
 482 uschar *deliver_localpart      = NULL;
 483 uschar *deliver_localpart_data = NULL;
 484 uschar *deliver_localpart_orig = NULL;
 485 uschar *deliver_localpart_parent = NULL;
 486 uschar *deliver_localpart_prefix = NULL;
 487 uschar *deliver_localpart_suffix = NULL;
 488 BOOL    deliver_force_thaw     = FALSE;
 489 BOOL    deliver_manual_thaw    = FALSE;
 490 uschar *deliver_out_buffer     = NULL;
 491 int     deliver_queue_load_max = -1;
 492 address_item  *deliver_recipients = NULL;
 493 uschar *deliver_selectstring   = NULL;
 494 BOOL    deliver_selectstring_regex = FALSE;
 495 uschar *deliver_selectstring_sender = NULL;
 496 BOOL    deliver_selectstring_sender_regex = FALSE;
 497 #ifdef WITH_OLD_DEMIME
 498 int     demime_errorlevel      = 0;
 499 int     demime_ok              = 0;
 500 uschar *demime_reason          = NULL;
 501 #endif
 502 BOOL    disable_ipv6           = FALSE;
 503 BOOL    disable_logging        = FALSE;
 504
 505 #ifdef EXPERIMENTAL_DOMAINKEYS
 506 uschar *dk_signing_domain      = NULL;
 507 uschar *dk_signing_selector    = NULL;
 508 int     dk_do_verify           = 0;
 509 #endif
 510
 511 uschar *dns_again_means_nonexist = NULL;
 512 int     dns_csa_search_limit   = 5;
 513 BOOL    dns_csa_use_reverse    = TRUE;
 514 uschar *dns_ipv4_lookup        = NULL;
 515 int     dns_retrans            = 0;
 516 int     dns_retry              = 0;
 517 uschar *dnslist_domain         = NULL;
 518 uschar *dnslist_text           = NULL;
 519 uschar *dnslist_value          = NULL;
 520 tree_node *domainlist_anchor   = NULL;
 521 int     domainlist_count       = 0;
 522 BOOL    dont_deliver           = FALSE;
 523 BOOL    dot_ends               = TRUE;
 524 BOOL    drop_cr                = FALSE;         /* No longer used */
 525
 526 BOOL    enable_dollar_recipients = FALSE;
 527 BOOL    envelope_to_remove     = TRUE;
 528 int     errno_quota            = ERRNO_QUOTA;
 529 uschar *errors_copy            = NULL;
 530 int     error_handling         = ERRORS_SENDER;
 531 uschar *errors_reply_to        = NULL;
 532 int     errors_sender_rc       = EXIT_FAILURE;
 533
 534 gid_t   exim_gid               = EXIM_GID;
 535 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 536 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 537                         "\0<---------------Space to patch exim_path->";
 538 uid_t   exim_uid               = EXIM_UID;
 539 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 540 int     expand_forbid          = 0;
 541 int     expand_nlength[EXPAND_MAXN+1];
 542 int     expand_nmax            = -1;
 543 uschar *expand_nstring[EXPAND_MAXN+1];
 544 BOOL    expand_string_forcedfail = FALSE;
 545 uschar *expand_string_message;
 546 BOOL    extract_addresses_remove_arguments = TRUE;
 547 uschar *extra_local_interfaces = NULL;
 548
 549 int     fake_response          = OK;
 550 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).";
 551 int     filter_n[FILTER_VARIABLE_COUNT];
 552 BOOL    filter_running         = FALSE;
 553 int     filter_sn[FILTER_VARIABLE_COUNT];
 554 int     filter_test            = FTEST_NONE;
 555 uschar *filter_test_sfile      = NULL;
 556 uschar *filter_test_ufile      = NULL;
 557 uschar *filter_thisaddress     = NULL;
 558 int     finduser_retries       = 0;
 559 #ifdef WITH_OLD_DEMIME
 560 uschar *found_extension        = NULL;
 561 #endif
 562 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 563 uschar *freeze_tell            = NULL;
 564 uschar *freeze_tell_config     = NULL;
 565 uschar *fudged_queue_times     = US"";
 566
 567 uschar *gecos_name             = NULL;
 568 uschar *gecos_pattern          = NULL;
 569 rewrite_rule  *global_rewrite_rules = NULL;
 570
 571 uschar *headers_charset        = US HEADERS_CHARSET;
 572 int     header_insert_maxlen   = 64 * 1024;
 573 header_line  *header_last      = NULL;
 574 header_line  *header_list      = NULL;
 575 int     header_maxsize         = HEADER_MAXSIZE;
 576 int     header_line_maxsize    = 0;
 577
 578 header_name header_names[] = {
 579   { US"bcc",            3, TRUE,  htype_bcc },
 580   { US"cc",             2, TRUE,  htype_cc },
 581   { US"date",           4, TRUE,  htype_date },
 582   { US"delivery-date", 13, FALSE, htype_delivery_date },
 583   { US"envelope-to",   11, FALSE, htype_envelope_to },
 584   { US"from",           4, TRUE,  htype_from },
 585   { US"message-id",    10, TRUE,  htype_id },
 586   { US"received",       8, FALSE, htype_received },
 587   { US"reply-to",       8, FALSE, htype_reply_to },
 588   { US"return-path",   11, FALSE, htype_return_path },
 589   { US"sender",         6, TRUE,  htype_sender },
 590   { US"subject",        7, FALSE, htype_subject },
 591   { US"to",             2, TRUE,  htype_to }
 592 };
 593
 594 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 595
 596 BOOL    header_rewritten       = FALSE;
 597 uschar *helo_accept_junk_hosts = NULL;
 598 uschar *helo_allow_chars       = US"";
 599 uschar *helo_lookup_domains    = US"@ : @[]";
 600 uschar *helo_try_verify_hosts  = NULL;
 601 BOOL    helo_verified          = FALSE;
 602 BOOL    helo_verify_failed     = FALSE;
 603 uschar *helo_verify_hosts      = NULL;
 604 uschar *hex_digits             = US"0123456789abcdef";
 605 uschar *hold_domains           = NULL;
 606 BOOL    host_checking          = FALSE;
 607 BOOL    host_checking_callout  = FALSE;
 608 uschar *host_data              = NULL;
 609 BOOL    host_find_failed_syntax= FALSE;
 610 uschar *host_lookup            = NULL;
 611 BOOL    host_lookup_deferred   = FALSE;
 612 BOOL    host_lookup_failed     = FALSE;
 613 uschar *host_lookup_order      = US"bydns:byaddr";
 614 uschar *host_lookup_msg        = US"";
 615 int     host_number            = 0;
 616 uschar *host_number_string     = NULL;
 617 uschar *host_reject_connection = NULL;
 618 tree_node *hostlist_anchor     = NULL;
 619 int     hostlist_count         = 0;
 620 uschar *hosts_treat_as_local   = NULL;
 621 uschar *hosts_connection_nolog = NULL;
 622
 623 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 624 BOOL    ignore_fromline_local  = FALSE;
 625 uschar *ignore_fromline_hosts  = NULL;
 626 uschar *interface_address      = NULL;
 627 int     interface_port         = -1;
 628 BOOL    is_inetd               = FALSE;
 629
 630 int     journal_fd             = -1;
 631
 632 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 633
 634 uschar *eldap_dn               = NULL;
 635 int     load_average           = -2;
 636 BOOL    local_error_message    = FALSE;
 637 BOOL    local_from_check       = TRUE;
 638 uschar *local_from_prefix      = NULL;
 639 uschar *local_from_suffix      = NULL;
 640
 641 #if HAVE_IPV6
 642 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 643 #else
 644 uschar *local_interfaces       = US"0.0.0.0";
 645 #endif
 646
 647 uschar *local_scan_data        = NULL;
 648 int     local_scan_timeout     = 5*60;
 649 BOOL    local_sender_retain    = FALSE;
 650 gid_t   local_user_gid         = (gid_t)(-1);
 651 uid_t   local_user_uid         = (uid_t)(-1);
 652
 653 tree_node *localpartlist_anchor= NULL;
 654 int     localpartlist_count    = 0;
 655 uschar *log_buffer             = NULL;
 656 unsigned int log_extra_selector = LX_default;
 657 uschar *log_file_path          = US LOG_FILE_PATH
 658                            "\0<--------------Space to patch log_file_path->";
 659
 660 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 661 are the ones that get put into log_write_selector. They can be used in calls to
 662 log_write() to test for the bit. The options with LX_xxx identifiers have
 663 values greater than 0x80000000 and are put int log_extra_selector (without the
 664 top bit). They are never used in calls to log_write(), but are tested
 665 independently. This separation became necessary when the number of log
 666 selectors was getting close to filling a 32-bit word. */
 667
 668 bit_table log_options[]        = {
 669   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 670   { US"address_rewrite",              L_address_rewrite },
 671   { US"all",                          L_all },
 672   { US"all_parents",                  L_all_parents },
 673   { US"arguments",                    LX_arguments },
 674   { US"connection_reject",            L_connection_reject },
 675   { US"delay_delivery",               L_delay_delivery },
 676   { US"deliver_time",                 LX_deliver_time },
 677   { US"delivery_size",                LX_delivery_size },
 678   { US"dnslist_defer",                L_dnslist_defer },
 679   { US"etrn",                         L_etrn },
 680   { US"host_lookup_failed",           L_host_lookup_failed },
 681   { US"ident_timeout",                LX_ident_timeout },
 682   { US"incoming_interface",           LX_incoming_interface },
 683   { US"incoming_port",                LX_incoming_port },
 684   { US"lost_incoming_connection",     L_lost_incoming_connection },
 685   { US"outgoing_port",                LX_outgoing_port },
 686   { US"queue_run",                    L_queue_run },
 687   { US"queue_time",                   LX_queue_time },
 688   { US"queue_time_overall",           LX_queue_time_overall },
 689   { US"received_recipients",          LX_received_recipients },
 690   { US"received_sender",              LX_received_sender },
 691   { US"rejected_header",              LX_rejected_header },
 692   { US"rejected_headers",             LX_rejected_header },
 693   { US"retry_defer",                  L_retry_defer },
 694   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 695   { US"sender_on_delivery",           LX_sender_on_delivery },
 696   { US"sender_verify_fail",           LX_sender_verify_fail },
 697   { US"size_reject",                  L_size_reject },
 698   { US"skip_delivery",                L_skip_delivery },
 699   { US"smtp_confirmation",            LX_smtp_confirmation },
 700   { US"smtp_connection",              L_smtp_connection },
 701   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 702   { US"smtp_no_mail",                 LX_smtp_no_mail },
 703   { US"smtp_protocol_error",          L_smtp_protocol_error },
 704   { US"smtp_syntax_error",            L_smtp_syntax_error },
 705   { US"subject",                      LX_subject },
 706   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 707   { US"tls_cipher",                   LX_tls_cipher },
 708   { US"tls_peerdn",                   LX_tls_peerdn },
 709   { US"unknown_in_list",              LX_unknown_in_list }
 710 };
 711
 712 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 713 int     log_reject_target      = 0;
 714 uschar *log_selector_string    = NULL;
 715 FILE   *log_stderr             = NULL;
 716 BOOL    log_testing_mode       = FALSE;
 717 BOOL    log_timezone           = FALSE;
 718 unsigned int log_write_selector= L_default;
 719 uschar *login_sender_address   = NULL;
 720 int     lookup_open_max        = 25;
 721 uschar *lookup_value           = NULL;
 722
 723 macro_item  *macros            = NULL;
 724 uschar *mailstore_basename     = NULL;
 725 #ifdef WITH_CONTENT_SCAN
 726 uschar *malware_name           = NULL;  /* Virus Name */
 727 #endif
 728 int     max_username_length    = 0;
 729 int     message_age            = 0;
 730 uschar *message_body           = NULL;
 731 uschar *message_body_end       = NULL;
 732 int     message_body_size      = 0;
 733 int     message_body_visible   = 500;
 734 int     message_ended          = END_NOTSTARTED;
 735 uschar *message_headers        = NULL;
 736 uschar *message_id;
 737 uschar *message_id_domain      = NULL;
 738 uschar *message_id_text        = NULL;
 739 struct timeval message_id_tv   = { 0, 0 };
 740 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 741 uschar *message_id_external;
 742 int     message_linecount      = 0;
 743 BOOL    message_logs           = TRUE;
 744 int     message_size           = 0;
 745 uschar *message_size_limit     = US"50M";
 746 uschar  message_subdir[2]      = { 0, 0 };
 747 uschar *message_reference      = NULL;
 748
 749 /* MIME ACL expandables */
 750 #ifdef WITH_CONTENT_SCAN
 751 int     mime_anomaly_level     = 0;
 752 uschar *mime_anomaly_text      = NULL;
 753 uschar *mime_boundary          = NULL;
 754 uschar *mime_charset           = NULL;
 755 uschar *mime_content_description = NULL;
 756 uschar *mime_content_disposition = NULL;
 757 uschar *mime_content_id        = NULL;
 758 unsigned int mime_content_size = 0;
 759 uschar *mime_content_transfer_encoding = NULL;
 760 uschar *mime_content_type      = NULL;
 761 uschar *mime_decoded_filename  = NULL;
 762 uschar *mime_filename          = NULL;
 763 int     mime_is_multipart      = 0;
 764 int     mime_is_coverletter    = 0;
 765 int     mime_is_rfc822         = 0;
 766 int     mime_part_count        = -1;
 767 #endif
 768
 769 BOOL    mua_wrapper            = FALSE;
 770
 771 uid_t  *never_users            = NULL;
 772 #ifdef WITH_CONTENT_SCAN
 773 BOOL    no_mbox_unspool        = FALSE;
 774 #endif
 775 BOOL    no_multiline_responses = FALSE;
 776
 777 uid_t   original_euid;
 778 gid_t   originator_gid;
 779 uschar *originator_login       = NULL;
 780 uschar *originator_name        = NULL;
 781 uid_t   originator_uid;
 782 uschar *override_local_interfaces = NULL;
 783 uschar *override_pid_file_path = NULL;
 784
 785 BOOL    parse_allow_group      = FALSE;
 786 BOOL    parse_found_group      = FALSE;
 787 uschar *percent_hack_domains   = NULL;
 788 uschar *pid_file_path          = US PID_FILE_PATH
 789                            "\0<--------------Space to patch pid_file_path->";
 790 uschar *pipelining_advertise_hosts = US"*";
 791 BOOL    preserve_message_logs  = FALSE;
 792 uschar *primary_hostname       = NULL;
 793 BOOL    print_topbitchars      = FALSE;
 794 uschar  process_info[PROCESS_INFO_SIZE];
 795 uschar *process_log_path       = NULL;
 796 BOOL    prod_requires_admin    = TRUE;
 797 uschar *prvscheck_address      = NULL;
 798 uschar *prvscheck_keynum       = NULL;
 799 uschar *prvscheck_result       = NULL;
 800
 801
 802 uschar *qualify_domain_recipient = NULL;
 803 uschar *qualify_domain_sender  = NULL;
 804 BOOL    queue_2stage           = FALSE;
 805 uschar *queue_domains          = NULL;
 806 int     queue_interval         = -1;
 807 BOOL    queue_list_requires_admin = TRUE;
 808 BOOL    queue_only             = FALSE;
 809 uschar *queue_only_file        = NULL;
 810 int     queue_only_load        = -1;
 811 BOOL    queue_only_override    = TRUE;
 812 BOOL    queue_only_policy      = FALSE;
 813 BOOL    queue_run_first_delivery = FALSE;
 814 BOOL    queue_run_force        = FALSE;
 815 BOOL    queue_run_in_order     = FALSE;
 816 BOOL    queue_run_local        = FALSE;
 817 int     queue_run_max          = 5;
 818 pid_t   queue_run_pid          = (pid_t)0;
 819 int     queue_run_pipe         = -1;
 820 BOOL    queue_running          = FALSE;
 821 BOOL    queue_smtp             = FALSE;
 822 uschar *queue_smtp_domains     = NULL;
 823
 824 unsigned int random_seed       = 0;
 825 tree_node *ratelimiters_cmd    = NULL;
 826 tree_node *ratelimiters_conn   = NULL;
 827 tree_node *ratelimiters_mail   = NULL;
 828 uschar *raw_active_hostname    = NULL;
 829 uschar *raw_sender             = NULL;
 830 uschar **raw_recipients        = NULL;
 831 int     raw_recipients_count   = 0;
 832
 833 int     rcpt_count             = 0;
 834 int     rcpt_fail_count        = 0;
 835 int     rcpt_defer_count       = 0;
 836 gid_t   real_gid;
 837 uid_t   real_uid;
 838 BOOL    really_exim            = TRUE;
 839 BOOL    receive_call_bombout   = FALSE;
 840 int     receive_linecount      = 0;
 841 int     receive_messagecount   = 0;
 842 int     receive_timeout        = 0;
 843 int     received_count         = 0;
 844 uschar *received_for           = NULL;
 845
 846 /*  This is the default text for Received headers generated by Exim. The
 847 date  will be automatically added on the end. */
 848
 849 uschar *received_header_text   = US
 850      "Received: "
 851      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 852      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 853      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 854      "by $primary_hostname "
 855      "${if def:received_protocol {with $received_protocol}} "
 856      #ifdef SUPPORT_TLS
 857      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 858      #endif
 859      "(Exim $version_number)\n\t"
 860      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 861      "id $message_exim_id"
 862      "${if def:received_for {\n\tfor $received_for}}"
 863      "\0<---------------Space to patch received_header_text->";
 864
 865 int     received_headers_max   = 30;
 866 uschar *received_protocol      = NULL;
 867 int     received_time          = 0;
 868 uschar *recipient_data         = NULL;
 869 uschar *recipient_unqualified_hosts = NULL;
 870 uschar *recipient_verify_failure = NULL;
 871 int     recipients_count       = 0;
 872 BOOL    recipients_discarded   = FALSE;
 873 recipient_item  *recipients_list = NULL;
 874 int     recipients_list_max    = 0;
 875 int     recipients_max         = 0;
 876 BOOL    recipients_max_reject  = FALSE;
 877 const pcre *regex_AUTH         = NULL;
 878 const pcre *regex_check_dns_names = NULL;
 879 const pcre *regex_From         = NULL;
 880 const pcre *regex_IGNOREQUOTA  = NULL;
 881 const pcre *regex_PIPELINING   = NULL;
 882 const pcre *regex_SIZE         = NULL;
 883 const pcre *regex_smtp_code    = NULL;
 884 const pcre *regex_ismsgid      = NULL;
 885 #ifdef WITH_CONTENT_SCAN
 886 uschar *regex_match_string     = NULL;
 887 #endif
 888 int     remote_delivery_count  = 0;
 889 int     remote_max_parallel    = 2;
 890 uschar *remote_sort_domains    = NULL;
 891 int     retry_data_expire      = 7*24*60*60;
 892 int     retry_interval_max     = 24*60*60;
 893 int     retry_maximum_timeout  = 0;        /* set from retry config */
 894 retry_config  *retries         = NULL;
 895 uschar *return_path            = NULL;
 896 BOOL    return_path_remove     = TRUE;
 897 int     rewrite_existflags     = 0;
 898 uschar *rfc1413_hosts          = US"*";
 899 int     rfc1413_query_timeout  = 5;
 900 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 901 uid_t   root_uid               = ROOT_UID;
 902
 903 router_instance  *routers  = NULL;
 904 router_instance  router_defaults = {
 905     NULL,                      /* chain pointer */
 906     NULL,                      /* name */
 907     NULL,                      /* info */
 908     NULL,                      /* private options block pointer */
 909     NULL,                      /* driver name */
 910
 911     NULL,                      /* address_data */
 912 #ifdef EXPERIMENTAL_BRIGHTMAIL
 913     NULL,                      /* bmi_rule */
 914 #endif
 915     NULL,                      /* cannot_route_message */
 916     NULL,                      /* condition */
 917     NULL,                      /* current_directory */
 918     NULL,                      /* debug_string */
 919     NULL,                      /* domains */
 920     NULL,                      /* errors_to */
 921     NULL,                      /* expand_gid */
 922     NULL,                      /* expand_uid */
 923     NULL,                      /* expand_more */
 924     NULL,                      /* expand_unseen */
 925     NULL,                      /* extra_headers */
 926     NULL,                      /* fallback_hosts */
 927     NULL,                      /* home_directory */
 928     NULL,                      /* ignore_target_hosts */
 929     NULL,                      /* local_parts */
 930     NULL,                      /* pass_router_name */
 931     NULL,                      /* prefix */
 932     NULL,                      /* redirect_router_name */
 933     NULL,                      /* remove_headers */
 934     NULL,                      /* require_files */
 935     NULL,                      /* router_home_directory */
 936     US"freeze",                /* self */
 937     NULL,                      /* senders */
 938     NULL,                      /* suffix */
 939     NULL,                      /* translate_ip_address */
 940     NULL,                      /* transport_name */
 941
 942     TRUE,                      /* address_test */
 943 #ifdef EXPERIMENTAL_BRIGHTMAIL
 944     FALSE,                     /* bmi_deliver_alternate */
 945     FALSE,                     /* bmi_deliver_default */
 946     FALSE,                     /* bmi_dont_deliver */
 947 #endif
 948     TRUE,                      /* expn */
 949     FALSE,                     /* caseful_local_part */
 950     FALSE,                     /* check_local_user */
 951     FALSE,                     /* disable_logging */
 952     FALSE,                     /* fail_verify_recipient */
 953     FALSE,                     /* fail_verify_sender */
 954     FALSE,                     /* gid_set */
 955     FALSE,                     /* initgroups */
 956     TRUE_UNSET,                /* log_as_local */
 957     TRUE,                      /* more */
 958     FALSE,                     /* pass_on_timeout */
 959     FALSE,                     /* prefix_optional */
 960     TRUE,                      /* repeat_use */
 961     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 962     FALSE,                     /* same_domain_copy_routing */
 963     FALSE,                     /* self_rewrite */
 964     FALSE,                     /* suffix_optional */
 965     FALSE,                     /* verify_only */
 966     TRUE,                      /* verify_recipient */
 967     TRUE,                      /* verify_sender */
 968     FALSE,                     /* uid_set */
 969     FALSE,                     /* unseen */
 970
 971     self_freeze,               /* self_code */
 972     (uid_t)(-1),               /* uid */
 973     (gid_t)(-1),               /* gid */
 974
 975     NULL,                      /* fallback_hostlist */
 976     NULL,                      /* transport instance */
 977     NULL,                      /* pass_router */
 978     NULL                       /* redirect_router */
 979 };
 980
 981 ip_address_item *running_interfaces = NULL;
 982 BOOL    running_in_test_harness = FALSE;
 983
 984 /* This is a weird one. The following string gets patched in the binary by the
 985 script that sets up a copy of Exim for running in the test harness. It seems
 986 that compilers are now clever, and share constant strings if they can.
 987 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 988 make use of the end of this string in order to save space. So the patching then
 989 wrecks this. We default this optimization by adding some additional characters
 990 onto the end of the string. */
 991
 992 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 993
 994 int     runrc                  = 0;
 995
 996 uschar *search_error_message   = NULL;
 997 BOOL    search_find_defer      = FALSE;
 998 uschar *self_hostname          = NULL;
 999 uschar *sender_address         = NULL;
1000 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1001 uschar *sender_address_data    = NULL;
1002 BOOL    sender_address_forced  = FALSE;
1003 uschar *sender_address_unrewritten = NULL;
1004 uschar *sender_data            = NULL;
1005 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1006 uschar *sender_fullhost        = NULL;
1007 uschar *sender_helo_name       = NULL;
1008 uschar **sender_host_aliases   = &no_aliases;
1009 uschar *sender_host_address    = NULL;
1010 uschar *sender_host_authenticated = NULL;
1011 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1012 uschar *sender_host_name       = NULL;
1013 int     sender_host_port       = 0;
1014 BOOL    sender_host_notsocket  = FALSE;
1015 BOOL    sender_host_unknown    = FALSE;
1016 uschar *sender_ident           = NULL;
1017 BOOL    sender_local           = FALSE;
1018 BOOL    sender_name_forced     = FALSE;
1019 uschar *sender_rate            = NULL;
1020 uschar *sender_rate_limit      = NULL;
1021 uschar *sender_rate_period     = NULL;
1022 uschar *sender_rcvhost         = NULL;
1023 BOOL    sender_set_untrusted   = FALSE;
1024 uschar *sender_unqualified_hosts = NULL;
1025 uschar *sender_verify_failure = NULL;
1026 address_item *sender_verified_list  = NULL;
1027 address_item *sender_verified_failed = NULL;
1028 int     sender_verified_rc     = -1;
1029 BOOL    sender_verified_responded = FALSE;
1030 volatile  BOOL sigalrm_seen    = FALSE;
1031 uschar **sighup_argv           = NULL;
1032 int     smtp_accept_count      = 0;
1033 BOOL    smtp_accept_keepalive  = TRUE;
1034 int     smtp_accept_max        = 20;
1035 int     smtp_accept_max_nonmail= 10;
1036 uschar *smtp_accept_max_nonmail_hosts = US"*";
1037 int     smtp_accept_max_per_connection = 1000;
1038 uschar *smtp_accept_max_per_host = NULL;
1039 int     smtp_accept_queue      = 0;
1040 int     smtp_accept_queue_per_connection = 10;
1041 int     smtp_accept_reserve    = 0;
1042 uschar *smtp_active_hostname   = NULL;
1043 BOOL    smtp_authenticated     = FALSE;
1044 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1045                              "Exim $version_number $tod_full"
1046                              "\0<---------------Space to patch smtp_banner->";
1047 BOOL    smtp_batched_input     = FALSE;
1048 BOOL    smtp_check_spool_space = TRUE;
1049 int     smtp_ch_index          = 0;
1050 uschar *smtp_cmd_argument      = NULL;
1051 uschar *smtp_cmd_buffer        = NULL;
1052 time_t  smtp_connection_start  = 0;
1053 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1054 int     smtp_connect_backlog   = 20;
1055 double  smtp_delay_mail        = 0.0;
1056 double  smtp_delay_rcpt        = 0.0;
1057 BOOL    smtp_enforce_sync      = TRUE;
1058 FILE   *smtp_in                = NULL;
1059 BOOL    smtp_input             = FALSE;
1060 int     smtp_load_reserve      = -1;
1061 int     smtp_mailcmd_count     = 0;
1062 FILE   *smtp_out               = NULL;
1063 uschar *smtp_etrn_command      = NULL;
1064 BOOL    smtp_etrn_serialize    = TRUE;
1065 int     smtp_max_synprot_errors= 3;
1066 int     smtp_max_unknown_commands = 3;
1067 uschar *smtp_ratelimit_hosts   = NULL;
1068 uschar *smtp_ratelimit_mail    = NULL;
1069 uschar *smtp_ratelimit_rcpt    = NULL;
1070 uschar *smtp_read_error        = US"";
1071 int     smtp_receive_timeout   = 5*60;
1072 uschar *smtp_reserve_hosts     = NULL;
1073 BOOL    smtp_return_error_details = FALSE;
1074 int     smtp_rlm_base          = 0;
1075 double  smtp_rlm_factor        = 0.0;
1076 int     smtp_rlm_limit         = 0;
1077 int     smtp_rlm_threshold     = INT_MAX;
1078 int     smtp_rlr_base          = 0;
1079 double  smtp_rlr_factor        = 0.0;
1080 int     smtp_rlr_limit         = 0;
1081 int     smtp_rlr_threshold     = INT_MAX;
1082 BOOL    smtp_use_pipelining    = FALSE;
1083 BOOL    smtp_use_size          = FALSE;
1084
1085 #ifdef WITH_CONTENT_SCAN
1086 uschar *spamd_address          = US"127.0.0.1 783";
1087 uschar *spam_bar               = NULL;
1088 uschar *spam_report            = NULL;
1089 uschar *spam_score             = NULL;
1090 uschar *spam_score_int         = NULL;
1091 #endif
1092 #ifdef EXPERIMENTAL_SPF
1093 uschar *spf_header_comment     = NULL;
1094 uschar *spf_received           = NULL;
1095 uschar *spf_result             = NULL;
1096 uschar *spf_smtp_comment       = NULL;
1097 #endif
1098
1099 BOOL    split_spool_directory  = FALSE;
1100 uschar *spool_directory        = US SPOOL_DIRECTORY
1101                            "\0<--------------Space to patch spool_directory->";
1102 #ifdef EXPERIMENTAL_SRS
1103 uschar *srs_config             = NULL;
1104 uschar *srs_db_address         = NULL;
1105 uschar *srs_db_key             = NULL;
1106 int     srs_hashlength         = 6;
1107 int     srs_hashmin            = -1;
1108 int     srs_maxage             = 31;
1109 uschar *srs_orig_recipient     = NULL;
1110 uschar *srs_orig_sender        = NULL;
1111 uschar *srs_recipient          = NULL;
1112 uschar *srs_secrets            = NULL;
1113 uschar *srs_status             = NULL;
1114 BOOL    srs_usehash            = TRUE;
1115 BOOL    srs_usetimestamp       = TRUE;
1116 #endif
1117 BOOL    strict_acl_vars        = FALSE;
1118 int     string_datestamp_offset= -1;
1119 BOOL    strip_excess_angle_brackets = FALSE;
1120 BOOL    strip_trailing_dot     = FALSE;
1121 uschar *submission_domain      = NULL;
1122 BOOL    submission_mode        = FALSE;
1123 uschar *submission_name        = NULL;
1124 BOOL    suppress_local_fixups  = FALSE;
1125 BOOL    synchronous_delivery   = FALSE;
1126 BOOL    syslog_duplication     = TRUE;
1127 int     syslog_facility        = LOG_MAIL;
1128 uschar *syslog_processname     = US"exim";
1129 BOOL    syslog_timestamp       = TRUE;
1130 uschar *system_filter          = NULL;
1131
1132 uschar *system_filter_directory_transport = NULL;
1133 uschar *system_filter_file_transport = NULL;
1134 uschar *system_filter_pipe_transport = NULL;
1135 uschar *system_filter_reply_transport = NULL;
1136
1137 gid_t   system_filter_gid      = 0;
1138 BOOL    system_filter_gid_set  = FALSE;
1139 uid_t   system_filter_uid      = 0;
1140 BOOL    system_filter_uid_set  = FALSE;
1141 BOOL    system_filtering       = FALSE;
1142
1143 BOOL    tcp_nodelay            = TRUE;
1144 int     thismessage_size_limit = 0;
1145 int     timeout_frozen_after   = 0;
1146 BOOL    timestamps_utc         = FALSE;
1147
1148 transport_instance  *transports = NULL;
1149
1150 transport_instance  transport_defaults = {
1151     NULL,                     /* chain pointer */
1152     NULL,                     /* name */
1153     NULL,                     /* info */
1154     NULL,                     /* private options block pointer */
1155     NULL,                     /* driver name */
1156     NULL,                     /* setup entry point */
1157     1,                        /* batch_max */
1158     NULL,                     /* batch_id */
1159     NULL,                     /* home_dir */
1160     NULL,                     /* current_dir */
1161     TRUE,                     /* multi-domain */
1162     FALSE,                    /* overrides_hosts */
1163     100,                      /* max_addresses */
1164     500,                      /* connection_max_messages */
1165     FALSE,                    /* deliver_as_creator */
1166     FALSE,                    /* disable_logging */
1167     FALSE,                    /* initgroups */
1168     FALSE,                    /* uid_set */
1169     FALSE,                    /* gid_set */
1170     (uid_t)(-1),              /* uid */
1171     (gid_t)(-1),              /* gid */
1172     NULL,                     /* expand_uid */
1173     NULL,                     /* expand_gid */
1174     NULL,                     /* warn_message */
1175     NULL,                     /* shadow */
1176     NULL,                     /* shadow_condition */
1177     NULL,                     /* filter_command */
1178     NULL,                     /* add_headers */
1179     NULL,                     /* remove_headers */
1180     NULL,                     /* return_path */
1181     NULL,                     /* debug_string */
1182     NULL,                     /* message_size_limit */
1183     NULL,                     /* headers_rewrite */
1184     NULL,                     /* rewrite_rules */
1185     0,                        /* rewrite_existflags */
1186     300,                      /* filter_timeout */
1187     FALSE,                    /* body_only */
1188     FALSE,                    /* delivery_date_add */
1189     FALSE,                    /* envelope_to_add */
1190     FALSE,                    /* headers_only */
1191     FALSE,                    /* rcpt_include_affixes */
1192     FALSE,                    /* return_path_add */
1193     FALSE,                    /* return_output */
1194     FALSE,                    /* return_fail_output */
1195     FALSE,                    /* log_output */
1196     FALSE,                    /* log_fail_output */
1197     FALSE,                    /* log_defer_output */
1198     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1199                                  1 nor 0 so can detect unset */
1200 };
1201
1202 int     transport_count;
1203 uschar **transport_filter_argv  = NULL;
1204 int     transport_filter_timeout;
1205 BOOL    transport_filter_timed_out = FALSE;
1206 int     transport_write_timeout= 0;
1207
1208 tree_node  *tree_dns_fails     = NULL;
1209 tree_node  *tree_duplicates    = NULL;
1210 tree_node  *tree_nonrecipients = NULL;
1211 tree_node  *tree_unusable      = NULL;
1212
1213 BOOL    trusted_caller         = FALSE;
1214 gid_t  *trusted_groups         = NULL;
1215 uid_t  *trusted_users          = NULL;
1216 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1217
1218 uschar *unknown_login          = NULL;
1219 uschar *unknown_username       = NULL;
1220 uschar *untrusted_set_sender   = NULL;
1221
1222 /*  A regex for matching a "From_" line in an incoming message, in the form
1223
1224     From ph10 Fri Jan  5 12:35 GMT 1996
1225
1226 which  the "mail" commands send to the MTA (undocumented, of course), or in
1227 the  form
1228
1229     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1230
1231 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1232 Because  of variations in time formats, just match up to the minutes. That
1233 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1234 so  just require one digit for hours and minutes. The weekday is also absent
1235 in  some forms. */
1236
1237 uschar *uucp_from_pattern      = US
1238    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1239    "(?:"                                          /* Non-extracting bracket */
1240    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1241    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1242    ")"                                            /* End alternation */
1243    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1244
1245 uschar *uucp_from_sender       = US"$1";
1246
1247 uschar *warn_message_file      = NULL;
1248 uschar *warnmsg_delay          = NULL;
1249 uschar *warnmsg_recipients     = NULL;
1250 BOOL    write_rejectlog        = TRUE;
1251
1252 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1253 uschar *version_date           = US"?";
1254 uschar *version_cnumber        = US"????";
1255 uschar *version_string         = US"?";
1256
1257 int     warning_count          = 0;
1258
1259 /*  End of globals.c */