src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.67 2007/01/31 16:52:12 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 #ifdef ENABLE_DISABLE_FSYNC
 503 BOOL    disable_fsync          = FALSE;
 504 #endif
 505 BOOL    disable_ipv6           = FALSE;
 506 BOOL    disable_logging        = FALSE;
 507
 508 #ifdef EXPERIMENTAL_DOMAINKEYS
 509 uschar *dk_signing_domain      = NULL;
 510 uschar *dk_signing_selector    = NULL;
 511 int     dk_do_verify           = 0;
 512 #endif
 513
 514 uschar *dns_again_means_nonexist = NULL;
 515 int     dns_csa_search_limit   = 5;
 516 BOOL    dns_csa_use_reverse    = TRUE;
 517 uschar *dns_ipv4_lookup        = NULL;
 518 int     dns_retrans            = 0;
 519 int     dns_retry              = 0;
 520 uschar *dnslist_domain         = NULL;
 521 uschar *dnslist_text           = NULL;
 522 uschar *dnslist_value          = NULL;
 523 tree_node *domainlist_anchor   = NULL;
 524 int     domainlist_count       = 0;
 525 BOOL    dont_deliver           = FALSE;
 526 BOOL    dot_ends               = TRUE;
 527 BOOL    drop_cr                = FALSE;         /* No longer used */
 528
 529 BOOL    enable_dollar_recipients = FALSE;
 530 BOOL    envelope_to_remove     = TRUE;
 531 int     errno_quota            = ERRNO_QUOTA;
 532 uschar *errors_copy            = NULL;
 533 int     error_handling         = ERRORS_SENDER;
 534 uschar *errors_reply_to        = NULL;
 535 int     errors_sender_rc       = EXIT_FAILURE;
 536
 537 gid_t   exim_gid               = EXIM_GID;
 538 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 539 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 540                         "\0<---------------Space to patch exim_path->";
 541 uid_t   exim_uid               = EXIM_UID;
 542 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 543 int     expand_forbid          = 0;
 544 int     expand_nlength[EXPAND_MAXN+1];
 545 int     expand_nmax            = -1;
 546 uschar *expand_nstring[EXPAND_MAXN+1];
 547 BOOL    expand_string_forcedfail = FALSE;
 548 uschar *expand_string_message;
 549 BOOL    extract_addresses_remove_arguments = TRUE;
 550 uschar *extra_local_interfaces = NULL;
 551
 552 int     fake_response          = OK;
 553 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).";
 554 int     filter_n[FILTER_VARIABLE_COUNT];
 555 BOOL    filter_running         = FALSE;
 556 int     filter_sn[FILTER_VARIABLE_COUNT];
 557 int     filter_test            = FTEST_NONE;
 558 uschar *filter_test_sfile      = NULL;
 559 uschar *filter_test_ufile      = NULL;
 560 uschar *filter_thisaddress     = NULL;
 561 int     finduser_retries       = 0;
 562 #ifdef WITH_OLD_DEMIME
 563 uschar *found_extension        = NULL;
 564 #endif
 565 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 566 uschar *freeze_tell            = NULL;
 567 uschar *freeze_tell_config     = NULL;
 568 uschar *fudged_queue_times     = US"";
 569
 570 uschar *gecos_name             = NULL;
 571 uschar *gecos_pattern          = NULL;
 572 rewrite_rule  *global_rewrite_rules = NULL;
 573
 574 uschar *headers_charset        = US HEADERS_CHARSET;
 575 int     header_insert_maxlen   = 64 * 1024;
 576 header_line  *header_last      = NULL;
 577 header_line  *header_list      = NULL;
 578 int     header_maxsize         = HEADER_MAXSIZE;
 579 int     header_line_maxsize    = 0;
 580
 581 header_name header_names[] = {
 582   { US"bcc",            3, TRUE,  htype_bcc },
 583   { US"cc",             2, TRUE,  htype_cc },
 584   { US"date",           4, TRUE,  htype_date },
 585   { US"delivery-date", 13, FALSE, htype_delivery_date },
 586   { US"envelope-to",   11, FALSE, htype_envelope_to },
 587   { US"from",           4, TRUE,  htype_from },
 588   { US"message-id",    10, TRUE,  htype_id },
 589   { US"received",       8, FALSE, htype_received },
 590   { US"reply-to",       8, FALSE, htype_reply_to },
 591   { US"return-path",   11, FALSE, htype_return_path },
 592   { US"sender",         6, TRUE,  htype_sender },
 593   { US"subject",        7, FALSE, htype_subject },
 594   { US"to",             2, TRUE,  htype_to }
 595 };
 596
 597 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 598
 599 BOOL    header_rewritten       = FALSE;
 600 uschar *helo_accept_junk_hosts = NULL;
 601 uschar *helo_allow_chars       = US"";
 602 uschar *helo_lookup_domains    = US"@ : @[]";
 603 uschar *helo_try_verify_hosts  = NULL;
 604 BOOL    helo_verified          = FALSE;
 605 BOOL    helo_verify_failed     = FALSE;
 606 uschar *helo_verify_hosts      = NULL;
 607 uschar *hex_digits             = US"0123456789abcdef";
 608 uschar *hold_domains           = NULL;
 609 BOOL    host_checking          = FALSE;
 610 BOOL    host_checking_callout  = FALSE;
 611 uschar *host_data              = NULL;
 612 BOOL    host_find_failed_syntax= FALSE;
 613 uschar *host_lookup            = NULL;
 614 BOOL    host_lookup_deferred   = FALSE;
 615 BOOL    host_lookup_failed     = FALSE;
 616 uschar *host_lookup_order      = US"bydns:byaddr";
 617 uschar *host_lookup_msg        = US"";
 618 int     host_number            = 0;
 619 uschar *host_number_string     = NULL;
 620 uschar *host_reject_connection = NULL;
 621 tree_node *hostlist_anchor     = NULL;
 622 int     hostlist_count         = 0;
 623 uschar *hosts_treat_as_local   = NULL;
 624 uschar *hosts_connection_nolog = NULL;
 625
 626 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 627 BOOL    ignore_fromline_local  = FALSE;
 628 uschar *ignore_fromline_hosts  = NULL;
 629 uschar *interface_address      = NULL;
 630 int     interface_port         = -1;
 631 BOOL    is_inetd               = FALSE;
 632
 633 int     journal_fd             = -1;
 634
 635 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 636
 637 uschar *eldap_dn               = NULL;
 638 int     load_average           = -2;
 639 BOOL    local_error_message    = FALSE;
 640 BOOL    local_from_check       = TRUE;
 641 uschar *local_from_prefix      = NULL;
 642 uschar *local_from_suffix      = NULL;
 643
 644 #if HAVE_IPV6
 645 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 646 #else
 647 uschar *local_interfaces       = US"0.0.0.0";
 648 #endif
 649
 650 uschar *local_scan_data        = NULL;
 651 int     local_scan_timeout     = 5*60;
 652 BOOL    local_sender_retain    = FALSE;
 653 gid_t   local_user_gid         = (gid_t)(-1);
 654 uid_t   local_user_uid         = (uid_t)(-1);
 655
 656 tree_node *localpartlist_anchor= NULL;
 657 int     localpartlist_count    = 0;
 658 uschar *log_buffer             = NULL;
 659 unsigned int log_extra_selector = LX_default;
 660 uschar *log_file_path          = US LOG_FILE_PATH
 661                            "\0<--------------Space to patch log_file_path->";
 662
 663 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 664 are the ones that get put into log_write_selector. They can be used in calls to
 665 log_write() to test for the bit. The options with LX_xxx identifiers have
 666 values greater than 0x80000000 and are put int log_extra_selector (without the
 667 top bit). They are never used in calls to log_write(), but are tested
 668 independently. This separation became necessary when the number of log
 669 selectors was getting close to filling a 32-bit word. */
 670
 671 /* Note that this list must be in alphabetical order. */
 672
 673 bit_table log_options[]        = {
 674   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 675   { US"address_rewrite",              L_address_rewrite },
 676   { US"all",                          L_all },
 677   { US"all_parents",                  L_all_parents },
 678   { US"arguments",                    LX_arguments },
 679   { US"connection_reject",            L_connection_reject },
 680   { US"delay_delivery",               L_delay_delivery },
 681   { US"deliver_time",                 LX_deliver_time },
 682   { US"delivery_size",                LX_delivery_size },
 683   { US"dnslist_defer",                L_dnslist_defer },
 684   { US"etrn",                         L_etrn },
 685   { US"host_lookup_failed",           L_host_lookup_failed },
 686   { US"ident_timeout",                LX_ident_timeout },
 687   { US"incoming_interface",           LX_incoming_interface },
 688   { US"incoming_port",                LX_incoming_port },
 689   { US"lost_incoming_connection",     L_lost_incoming_connection },
 690   { US"outgoing_port",                LX_outgoing_port },
 691   { US"pid",                          LX_pid },
 692   { US"queue_run",                    L_queue_run },
 693   { US"queue_time",                   LX_queue_time },
 694   { US"queue_time_overall",           LX_queue_time_overall },
 695   { US"received_recipients",          LX_received_recipients },
 696   { US"received_sender",              LX_received_sender },
 697   { US"rejected_header",              LX_rejected_header },
 698   { US"rejected_headers",             LX_rejected_header },
 699   { US"retry_defer",                  L_retry_defer },
 700   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 701   { US"sender_on_delivery",           LX_sender_on_delivery },
 702   { US"sender_verify_fail",           LX_sender_verify_fail },
 703   { US"size_reject",                  L_size_reject },
 704   { US"skip_delivery",                L_skip_delivery },
 705   { US"smtp_confirmation",            LX_smtp_confirmation },
 706   { US"smtp_connection",              L_smtp_connection },
 707   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 708   { US"smtp_no_mail",                 LX_smtp_no_mail },
 709   { US"smtp_protocol_error",          L_smtp_protocol_error },
 710   { US"smtp_syntax_error",            L_smtp_syntax_error },
 711   { US"subject",                      LX_subject },
 712   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 713   { US"tls_cipher",                   LX_tls_cipher },
 714   { US"tls_peerdn",                   LX_tls_peerdn },
 715   { US"unknown_in_list",              LX_unknown_in_list }
 716 };
 717
 718 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 719 int     log_reject_target      = 0;
 720 uschar *log_selector_string    = NULL;
 721 FILE   *log_stderr             = NULL;
 722 BOOL    log_testing_mode       = FALSE;
 723 BOOL    log_timezone           = FALSE;
 724 unsigned int log_write_selector= L_default;
 725 uschar *login_sender_address   = NULL;
 726 int     lookup_open_max        = 25;
 727 uschar *lookup_value           = NULL;
 728
 729 macro_item  *macros            = NULL;
 730 uschar *mailstore_basename     = NULL;
 731 #ifdef WITH_CONTENT_SCAN
 732 uschar *malware_name           = NULL;  /* Virus Name */
 733 #endif
 734 int     max_username_length    = 0;
 735 int     message_age            = 0;
 736 uschar *message_body           = NULL;
 737 uschar *message_body_end       = NULL;
 738 int     message_body_size      = 0;
 739 int     message_body_visible   = 500;
 740 int     message_ended          = END_NOTSTARTED;
 741 uschar *message_headers        = NULL;
 742 uschar *message_id;
 743 uschar *message_id_domain      = NULL;
 744 uschar *message_id_text        = NULL;
 745 struct timeval message_id_tv   = { 0, 0 };
 746 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 747 uschar *message_id_external;
 748 int     message_linecount      = 0;
 749 BOOL    message_logs           = TRUE;
 750 int     message_size           = 0;
 751 uschar *message_size_limit     = US"50M";
 752 uschar  message_subdir[2]      = { 0, 0 };
 753 uschar *message_reference      = NULL;
 754
 755 /* MIME ACL expandables */
 756 #ifdef WITH_CONTENT_SCAN
 757 int     mime_anomaly_level     = 0;
 758 uschar *mime_anomaly_text      = NULL;
 759 uschar *mime_boundary          = NULL;
 760 uschar *mime_charset           = NULL;
 761 uschar *mime_content_description = NULL;
 762 uschar *mime_content_disposition = NULL;
 763 uschar *mime_content_id        = NULL;
 764 unsigned int mime_content_size = 0;
 765 uschar *mime_content_transfer_encoding = NULL;
 766 uschar *mime_content_type      = NULL;
 767 uschar *mime_decoded_filename  = NULL;
 768 uschar *mime_filename          = NULL;
 769 int     mime_is_multipart      = 0;
 770 int     mime_is_coverletter    = 0;
 771 int     mime_is_rfc822         = 0;
 772 int     mime_part_count        = -1;
 773 #endif
 774
 775 BOOL    mua_wrapper            = FALSE;
 776
 777 uid_t  *never_users            = NULL;
 778 #ifdef WITH_CONTENT_SCAN
 779 BOOL    no_mbox_unspool        = FALSE;
 780 #endif
 781 BOOL    no_multiline_responses = FALSE;
 782
 783 uid_t   original_euid;
 784 gid_t   originator_gid;
 785 uschar *originator_login       = NULL;
 786 uschar *originator_name        = NULL;
 787 uid_t   originator_uid;
 788 uschar *override_local_interfaces = NULL;
 789 uschar *override_pid_file_path = NULL;
 790
 791 BOOL    parse_allow_group      = FALSE;
 792 BOOL    parse_found_group      = FALSE;
 793 uschar *percent_hack_domains   = NULL;
 794 uschar *pid_file_path          = US PID_FILE_PATH
 795                            "\0<--------------Space to patch pid_file_path->";
 796 BOOL    pipelining_enable      = TRUE;
 797 uschar *pipelining_advertise_hosts = US"*";
 798 BOOL    preserve_message_logs  = FALSE;
 799 uschar *primary_hostname       = NULL;
 800 BOOL    print_topbitchars      = FALSE;
 801 uschar  process_info[PROCESS_INFO_SIZE];
 802 uschar *process_log_path       = NULL;
 803 BOOL    prod_requires_admin    = TRUE;
 804 uschar *prvscheck_address      = NULL;
 805 uschar *prvscheck_keynum       = NULL;
 806 uschar *prvscheck_result       = NULL;
 807
 808
 809 uschar *qualify_domain_recipient = NULL;
 810 uschar *qualify_domain_sender  = NULL;
 811 BOOL    queue_2stage           = FALSE;
 812 uschar *queue_domains          = NULL;
 813 int     queue_interval         = -1;
 814 BOOL    queue_list_requires_admin = TRUE;
 815 BOOL    queue_only             = FALSE;
 816 uschar *queue_only_file        = NULL;
 817 int     queue_only_load        = -1;
 818 BOOL    queue_only_override    = TRUE;
 819 BOOL    queue_only_policy      = FALSE;
 820 BOOL    queue_run_first_delivery = FALSE;
 821 BOOL    queue_run_force        = FALSE;
 822 BOOL    queue_run_in_order     = FALSE;
 823 BOOL    queue_run_local        = FALSE;
 824 int     queue_run_max          = 5;
 825 pid_t   queue_run_pid          = (pid_t)0;
 826 int     queue_run_pipe         = -1;
 827 BOOL    queue_running          = FALSE;
 828 BOOL    queue_smtp             = FALSE;
 829 uschar *queue_smtp_domains     = NULL;
 830
 831 unsigned int random_seed       = 0;
 832 tree_node *ratelimiters_cmd    = NULL;
 833 tree_node *ratelimiters_conn   = NULL;
 834 tree_node *ratelimiters_mail   = NULL;
 835 uschar *raw_active_hostname    = NULL;
 836 uschar *raw_sender             = NULL;
 837 uschar **raw_recipients        = NULL;
 838 int     raw_recipients_count   = 0;
 839
 840 int     rcpt_count             = 0;
 841 int     rcpt_fail_count        = 0;
 842 int     rcpt_defer_count       = 0;
 843 gid_t   real_gid;
 844 uid_t   real_uid;
 845 BOOL    really_exim            = TRUE;
 846 BOOL    receive_call_bombout   = FALSE;
 847 int     receive_linecount      = 0;
 848 int     receive_messagecount   = 0;
 849 int     receive_timeout        = 0;
 850 int     received_count         = 0;
 851 uschar *received_for           = NULL;
 852
 853 /*  This is the default text for Received headers generated by Exim. The
 854 date  will be automatically added on the end. */
 855
 856 uschar *received_header_text   = US
 857      "Received: "
 858      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 859      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 860      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 861      "by $primary_hostname "
 862      "${if def:received_protocol {with $received_protocol}} "
 863      #ifdef SUPPORT_TLS
 864      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 865      #endif
 866      "(Exim $version_number)\n\t"
 867      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 868      "id $message_exim_id"
 869      "${if def:received_for {\n\tfor $received_for}}"
 870      "\0<---------------Space to patch received_header_text->";
 871
 872 int     received_headers_max   = 30;
 873 uschar *received_protocol      = NULL;
 874 int     received_time          = 0;
 875 uschar *recipient_data         = NULL;
 876 uschar *recipient_unqualified_hosts = NULL;
 877 uschar *recipient_verify_failure = NULL;
 878 int     recipients_count       = 0;
 879 BOOL    recipients_discarded   = FALSE;
 880 recipient_item  *recipients_list = NULL;
 881 int     recipients_list_max    = 0;
 882 int     recipients_max         = 0;
 883 BOOL    recipients_max_reject  = FALSE;
 884 const pcre *regex_AUTH         = NULL;
 885 const pcre *regex_check_dns_names = NULL;
 886 const pcre *regex_From         = NULL;
 887 const pcre *regex_IGNOREQUOTA  = NULL;
 888 const pcre *regex_PIPELINING   = NULL;
 889 const pcre *regex_SIZE         = NULL;
 890 const pcre *regex_smtp_code    = NULL;
 891 const pcre *regex_ismsgid      = NULL;
 892 #ifdef WITH_CONTENT_SCAN
 893 uschar *regex_match_string     = NULL;
 894 #endif
 895 int     remote_delivery_count  = 0;
 896 int     remote_max_parallel    = 2;
 897 uschar *remote_sort_domains    = NULL;
 898 int     retry_data_expire      = 7*24*60*60;
 899 int     retry_interval_max     = 24*60*60;
 900 int     retry_maximum_timeout  = 0;        /* set from retry config */
 901 retry_config  *retries         = NULL;
 902 uschar *return_path            = NULL;
 903 BOOL    return_path_remove     = TRUE;
 904 int     rewrite_existflags     = 0;
 905 uschar *rfc1413_hosts          = US"*";
 906 int     rfc1413_query_timeout  = 5;
 907 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 908 uid_t   root_uid               = ROOT_UID;
 909
 910 router_instance  *routers  = NULL;
 911 router_instance  router_defaults = {
 912     NULL,                      /* chain pointer */
 913     NULL,                      /* name */
 914     NULL,                      /* info */
 915     NULL,                      /* private options block pointer */
 916     NULL,                      /* driver name */
 917
 918     NULL,                      /* address_data */
 919 #ifdef EXPERIMENTAL_BRIGHTMAIL
 920     NULL,                      /* bmi_rule */
 921 #endif
 922     NULL,                      /* cannot_route_message */
 923     NULL,                      /* condition */
 924     NULL,                      /* current_directory */
 925     NULL,                      /* debug_string */
 926     NULL,                      /* domains */
 927     NULL,                      /* errors_to */
 928     NULL,                      /* expand_gid */
 929     NULL,                      /* expand_uid */
 930     NULL,                      /* expand_more */
 931     NULL,                      /* expand_unseen */
 932     NULL,                      /* extra_headers */
 933     NULL,                      /* fallback_hosts */
 934     NULL,                      /* home_directory */
 935     NULL,                      /* ignore_target_hosts */
 936     NULL,                      /* local_parts */
 937     NULL,                      /* pass_router_name */
 938     NULL,                      /* prefix */
 939     NULL,                      /* redirect_router_name */
 940     NULL,                      /* remove_headers */
 941     NULL,                      /* require_files */
 942     NULL,                      /* router_home_directory */
 943     US"freeze",                /* self */
 944     NULL,                      /* senders */
 945     NULL,                      /* suffix */
 946     NULL,                      /* translate_ip_address */
 947     NULL,                      /* transport_name */
 948
 949     TRUE,                      /* address_test */
 950 #ifdef EXPERIMENTAL_BRIGHTMAIL
 951     FALSE,                     /* bmi_deliver_alternate */
 952     FALSE,                     /* bmi_deliver_default */
 953     FALSE,                     /* bmi_dont_deliver */
 954 #endif
 955     TRUE,                      /* expn */
 956     FALSE,                     /* caseful_local_part */
 957     FALSE,                     /* check_local_user */
 958     FALSE,                     /* disable_logging */
 959     FALSE,                     /* fail_verify_recipient */
 960     FALSE,                     /* fail_verify_sender */
 961     FALSE,                     /* gid_set */
 962     FALSE,                     /* initgroups */
 963     TRUE_UNSET,                /* log_as_local */
 964     TRUE,                      /* more */
 965     FALSE,                     /* pass_on_timeout */
 966     FALSE,                     /* prefix_optional */
 967     TRUE,                      /* repeat_use */
 968     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 969     FALSE,                     /* same_domain_copy_routing */
 970     FALSE,                     /* self_rewrite */
 971     FALSE,                     /* suffix_optional */
 972     FALSE,                     /* verify_only */
 973     TRUE,                      /* verify_recipient */
 974     TRUE,                      /* verify_sender */
 975     FALSE,                     /* uid_set */
 976     FALSE,                     /* unseen */
 977
 978     self_freeze,               /* self_code */
 979     (uid_t)(-1),               /* uid */
 980     (gid_t)(-1),               /* gid */
 981
 982     NULL,                      /* fallback_hostlist */
 983     NULL,                      /* transport instance */
 984     NULL,                      /* pass_router */
 985     NULL                       /* redirect_router */
 986 };
 987
 988 ip_address_item *running_interfaces = NULL;
 989 BOOL    running_in_test_harness = FALSE;
 990
 991 /* This is a weird one. The following string gets patched in the binary by the
 992 script that sets up a copy of Exim for running in the test harness. It seems
 993 that compilers are now clever, and share constant strings if they can.
 994 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 995 make use of the end of this string in order to save space. So the patching then
 996 wrecks this. We default this optimization by adding some additional characters
 997 onto the end of the string. */
 998
 999 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1000
1001 int     runrc                  = 0;
1002
1003 uschar *search_error_message   = NULL;
1004 BOOL    search_find_defer      = FALSE;
1005 uschar *self_hostname          = NULL;
1006 uschar *sender_address         = NULL;
1007 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1008 uschar *sender_address_data    = NULL;
1009 BOOL    sender_address_forced  = FALSE;
1010 uschar *sender_address_unrewritten = NULL;
1011 uschar *sender_data            = NULL;
1012 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1013 uschar *sender_fullhost        = NULL;
1014 uschar *sender_helo_name       = NULL;
1015 uschar **sender_host_aliases   = &no_aliases;
1016 uschar *sender_host_address    = NULL;
1017 uschar *sender_host_authenticated = NULL;
1018 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1019 uschar *sender_host_name       = NULL;
1020 int     sender_host_port       = 0;
1021 BOOL    sender_host_notsocket  = FALSE;
1022 BOOL    sender_host_unknown    = FALSE;
1023 uschar *sender_ident           = NULL;
1024 BOOL    sender_local           = FALSE;
1025 BOOL    sender_name_forced     = FALSE;
1026 uschar *sender_rate            = NULL;
1027 uschar *sender_rate_limit      = NULL;
1028 uschar *sender_rate_period     = NULL;
1029 uschar *sender_rcvhost         = NULL;
1030 BOOL    sender_set_untrusted   = FALSE;
1031 uschar *sender_unqualified_hosts = NULL;
1032 uschar *sender_verify_failure = NULL;
1033 address_item *sender_verified_list  = NULL;
1034 address_item *sender_verified_failed = NULL;
1035 int     sender_verified_rc     = -1;
1036 BOOL    sender_verified_responded = FALSE;
1037 uschar *sending_ip_address     = NULL;
1038 int     sending_port           = -1;
1039 volatile  BOOL sigalrm_seen    = FALSE;
1040 uschar **sighup_argv           = NULL;
1041 int     smtp_accept_count      = 0;
1042 BOOL    smtp_accept_keepalive  = TRUE;
1043 int     smtp_accept_max        = 20;
1044 int     smtp_accept_max_nonmail= 10;
1045 uschar *smtp_accept_max_nonmail_hosts = US"*";
1046 int     smtp_accept_max_per_connection = 1000;
1047 uschar *smtp_accept_max_per_host = NULL;
1048 int     smtp_accept_queue      = 0;
1049 int     smtp_accept_queue_per_connection = 10;
1050 int     smtp_accept_reserve    = 0;
1051 uschar *smtp_active_hostname   = NULL;
1052 BOOL    smtp_authenticated     = FALSE;
1053 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1054                              "Exim $version_number $tod_full"
1055                              "\0<---------------Space to patch smtp_banner->";
1056 BOOL    smtp_batched_input     = FALSE;
1057 BOOL    smtp_check_spool_space = TRUE;
1058 int     smtp_ch_index          = 0;
1059 uschar *smtp_cmd_argument      = NULL;
1060 uschar *smtp_cmd_buffer        = NULL;
1061 time_t  smtp_connection_start  = 0;
1062 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1063 int     smtp_connect_backlog   = 20;
1064 double  smtp_delay_mail        = 0.0;
1065 double  smtp_delay_rcpt        = 0.0;
1066 BOOL    smtp_enforce_sync      = TRUE;
1067 FILE   *smtp_in                = NULL;
1068 BOOL    smtp_input             = FALSE;
1069 int     smtp_load_reserve      = -1;
1070 int     smtp_mailcmd_count     = 0;
1071 FILE   *smtp_out               = NULL;
1072 uschar *smtp_etrn_command      = NULL;
1073 BOOL    smtp_etrn_serialize    = TRUE;
1074 int     smtp_max_synprot_errors= 3;
1075 int     smtp_max_unknown_commands = 3;
1076 uschar *smtp_ratelimit_hosts   = NULL;
1077 uschar *smtp_ratelimit_mail    = NULL;
1078 uschar *smtp_ratelimit_rcpt    = NULL;
1079 uschar *smtp_read_error        = US"";
1080 int     smtp_receive_timeout   = 5*60;
1081 uschar *smtp_reserve_hosts     = NULL;
1082 BOOL    smtp_return_error_details = FALSE;
1083 int     smtp_rlm_base          = 0;
1084 double  smtp_rlm_factor        = 0.0;
1085 int     smtp_rlm_limit         = 0;
1086 int     smtp_rlm_threshold     = INT_MAX;
1087 int     smtp_rlr_base          = 0;
1088 double  smtp_rlr_factor        = 0.0;
1089 int     smtp_rlr_limit         = 0;
1090 int     smtp_rlr_threshold     = INT_MAX;
1091 BOOL    smtp_use_pipelining    = FALSE;
1092 BOOL    smtp_use_size          = FALSE;
1093
1094 #ifdef WITH_CONTENT_SCAN
1095 uschar *spamd_address          = US"127.0.0.1 783";
1096 uschar *spam_bar               = NULL;
1097 uschar *spam_report            = NULL;
1098 uschar *spam_score             = NULL;
1099 uschar *spam_score_int         = NULL;
1100 #endif
1101 #ifdef EXPERIMENTAL_SPF
1102 uschar *spf_header_comment     = NULL;
1103 uschar *spf_received           = NULL;
1104 uschar *spf_result             = NULL;
1105 uschar *spf_smtp_comment       = NULL;
1106 #endif
1107
1108 BOOL    split_spool_directory  = FALSE;
1109 uschar *spool_directory        = US SPOOL_DIRECTORY
1110                            "\0<--------------Space to patch spool_directory->";
1111 #ifdef EXPERIMENTAL_SRS
1112 uschar *srs_config             = NULL;
1113 uschar *srs_db_address         = NULL;
1114 uschar *srs_db_key             = NULL;
1115 int     srs_hashlength         = 6;
1116 int     srs_hashmin            = -1;
1117 int     srs_maxage             = 31;
1118 uschar *srs_orig_recipient     = NULL;
1119 uschar *srs_orig_sender        = NULL;
1120 uschar *srs_recipient          = NULL;
1121 uschar *srs_secrets            = NULL;
1122 uschar *srs_status             = NULL;
1123 BOOL    srs_usehash            = TRUE;
1124 BOOL    srs_usetimestamp       = TRUE;
1125 #endif
1126 BOOL    strict_acl_vars        = FALSE;
1127 int     string_datestamp_offset= -1;
1128 BOOL    strip_excess_angle_brackets = FALSE;
1129 BOOL    strip_trailing_dot     = FALSE;
1130 uschar *submission_domain      = NULL;
1131 BOOL    submission_mode        = FALSE;
1132 uschar *submission_name        = NULL;
1133 BOOL    suppress_local_fixups  = FALSE;
1134 BOOL    synchronous_delivery   = FALSE;
1135 BOOL    syslog_duplication     = TRUE;
1136 int     syslog_facility        = LOG_MAIL;
1137 uschar *syslog_processname     = US"exim";
1138 BOOL    syslog_timestamp       = TRUE;
1139 uschar *system_filter          = NULL;
1140
1141 uschar *system_filter_directory_transport = NULL;
1142 uschar *system_filter_file_transport = NULL;
1143 uschar *system_filter_pipe_transport = NULL;
1144 uschar *system_filter_reply_transport = NULL;
1145
1146 gid_t   system_filter_gid      = 0;
1147 BOOL    system_filter_gid_set  = FALSE;
1148 uid_t   system_filter_uid      = 0;
1149 BOOL    system_filter_uid_set  = FALSE;
1150 BOOL    system_filtering       = FALSE;
1151
1152 BOOL    tcp_nodelay            = TRUE;
1153 int     thismessage_size_limit = 0;
1154 int     timeout_frozen_after   = 0;
1155 BOOL    timestamps_utc         = FALSE;
1156
1157 transport_instance  *transports = NULL;
1158
1159 transport_instance  transport_defaults = {
1160     NULL,                     /* chain pointer */
1161     NULL,                     /* name */
1162     NULL,                     /* info */
1163     NULL,                     /* private options block pointer */
1164     NULL,                     /* driver name */
1165     NULL,                     /* setup entry point */
1166     1,                        /* batch_max */
1167     NULL,                     /* batch_id */
1168     NULL,                     /* home_dir */
1169     NULL,                     /* current_dir */
1170     TRUE,                     /* multi-domain */
1171     FALSE,                    /* overrides_hosts */
1172     100,                      /* max_addresses */
1173     500,                      /* connection_max_messages */
1174     FALSE,                    /* deliver_as_creator */
1175     FALSE,                    /* disable_logging */
1176     FALSE,                    /* initgroups */
1177     FALSE,                    /* uid_set */
1178     FALSE,                    /* gid_set */
1179     (uid_t)(-1),              /* uid */
1180     (gid_t)(-1),              /* gid */
1181     NULL,                     /* expand_uid */
1182     NULL,                     /* expand_gid */
1183     NULL,                     /* warn_message */
1184     NULL,                     /* shadow */
1185     NULL,                     /* shadow_condition */
1186     NULL,                     /* filter_command */
1187     NULL,                     /* add_headers */
1188     NULL,                     /* remove_headers */
1189     NULL,                     /* return_path */
1190     NULL,                     /* debug_string */
1191     NULL,                     /* message_size_limit */
1192     NULL,                     /* headers_rewrite */
1193     NULL,                     /* rewrite_rules */
1194     0,                        /* rewrite_existflags */
1195     300,                      /* filter_timeout */
1196     FALSE,                    /* body_only */
1197     FALSE,                    /* delivery_date_add */
1198     FALSE,                    /* envelope_to_add */
1199     FALSE,                    /* headers_only */
1200     FALSE,                    /* rcpt_include_affixes */
1201     FALSE,                    /* return_path_add */
1202     FALSE,                    /* return_output */
1203     FALSE,                    /* return_fail_output */
1204     FALSE,                    /* log_output */
1205     FALSE,                    /* log_fail_output */
1206     FALSE,                    /* log_defer_output */
1207     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1208                                  1 nor 0 so can detect unset */
1209 };
1210
1211 int     transport_count;
1212 uschar **transport_filter_argv  = NULL;
1213 int     transport_filter_timeout;
1214 BOOL    transport_filter_timed_out = FALSE;
1215 int     transport_write_timeout= 0;
1216
1217 tree_node  *tree_dns_fails     = NULL;
1218 tree_node  *tree_duplicates    = NULL;
1219 tree_node  *tree_nonrecipients = NULL;
1220 tree_node  *tree_unusable      = NULL;
1221
1222 BOOL    trusted_caller         = FALSE;
1223 gid_t  *trusted_groups         = NULL;
1224 uid_t  *trusted_users          = NULL;
1225 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1226
1227 uschar *unknown_login          = NULL;
1228 uschar *unknown_username       = NULL;
1229 uschar *untrusted_set_sender   = NULL;
1230
1231 /*  A regex for matching a "From_" line in an incoming message, in the form
1232
1233     From ph10 Fri Jan  5 12:35 GMT 1996
1234
1235 which  the "mail" commands send to the MTA (undocumented, of course), or in
1236 the  form
1237
1238     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1239
1240 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1241 Because  of variations in time formats, just match up to the minutes. That
1242 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1243 so  just require one digit for hours and minutes. The weekday is also absent
1244 in  some forms. */
1245
1246 uschar *uucp_from_pattern      = US
1247    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1248    "(?:"                                          /* Non-extracting bracket */
1249    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1250    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1251    ")"                                            /* End alternation */
1252    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1253
1254 uschar *uucp_from_sender       = US"$1";
1255
1256 uschar *warn_message_file      = NULL;
1257 uschar *warnmsg_delay          = NULL;
1258 uschar *warnmsg_recipients     = NULL;
1259 BOOL    write_rejectlog        = TRUE;
1260
1261 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1262 uschar *version_date           = US"?";
1263 uschar *version_cnumber        = US"????";
1264 uschar *version_string         = US"?";
1265
1266 int     warning_count          = 0;
1267
1268 /*  End of globals.c */