src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.70 2007/02/06 11:11:40 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_delay_flush    = FALSE;
 503 #ifdef ENABLE_DISABLE_FSYNC
 504 BOOL    disable_fsync          = FALSE;
 505 #endif
 506 BOOL    disable_ipv6           = FALSE;
 507 BOOL    disable_logging        = FALSE;
 508
 509 #ifdef EXPERIMENTAL_DOMAINKEYS
 510 uschar *dk_signing_domain      = NULL;
 511 uschar *dk_signing_selector    = NULL;
 512 int     dk_do_verify           = 0;
 513 #endif
 514
 515 uschar *dns_again_means_nonexist = NULL;
 516 int     dns_csa_search_limit   = 5;
 517 BOOL    dns_csa_use_reverse    = TRUE;
 518 uschar *dns_ipv4_lookup        = NULL;
 519 int     dns_retrans            = 0;
 520 int     dns_retry              = 0;
 521 uschar *dnslist_domain         = NULL;
 522 uschar *dnslist_text           = NULL;
 523 uschar *dnslist_value          = NULL;
 524 tree_node *domainlist_anchor   = NULL;
 525 int     domainlist_count       = 0;
 526 BOOL    dont_deliver           = FALSE;
 527 BOOL    dot_ends               = TRUE;
 528 BOOL    drop_cr                = FALSE;         /* No longer used */
 529 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 530
 531 BOOL    enable_dollar_recipients = FALSE;
 532 BOOL    envelope_to_remove     = TRUE;
 533 int     errno_quota            = ERRNO_QUOTA;
 534 uschar *errors_copy            = NULL;
 535 int     error_handling         = ERRORS_SENDER;
 536 uschar *errors_reply_to        = NULL;
 537 int     errors_sender_rc       = EXIT_FAILURE;
 538
 539 gid_t   exim_gid               = EXIM_GID;
 540 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 541 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 542                         "\0<---------------Space to patch exim_path->";
 543 uid_t   exim_uid               = EXIM_UID;
 544 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 545 int     expand_forbid          = 0;
 546 int     expand_nlength[EXPAND_MAXN+1];
 547 int     expand_nmax            = -1;
 548 uschar *expand_nstring[EXPAND_MAXN+1];
 549 BOOL    expand_string_forcedfail = FALSE;
 550 uschar *expand_string_message;
 551 BOOL    extract_addresses_remove_arguments = TRUE;
 552 uschar *extra_local_interfaces = NULL;
 553
 554 int     fake_response          = OK;
 555 uschar *fake_response_text     = US"Your message has been rejected but is "
 556                                    "being kept for evaluation.\nIf it was a "
 557                                    "legitimate message, it may still be "
 558                                    "delivered to the target recipient(s).";
 559 int     filter_n[FILTER_VARIABLE_COUNT];
 560 BOOL    filter_running         = FALSE;
 561 int     filter_sn[FILTER_VARIABLE_COUNT];
 562 int     filter_test            = FTEST_NONE;
 563 uschar *filter_test_sfile      = NULL;
 564 uschar *filter_test_ufile      = NULL;
 565 uschar *filter_thisaddress     = NULL;
 566 int     finduser_retries       = 0;
 567 #ifdef WITH_OLD_DEMIME
 568 uschar *found_extension        = NULL;
 569 #endif
 570 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 571 uschar *freeze_tell            = NULL;
 572 uschar *freeze_tell_config     = NULL;
 573 uschar *fudged_queue_times     = US"";
 574
 575 uschar *gecos_name             = NULL;
 576 uschar *gecos_pattern          = NULL;
 577 rewrite_rule  *global_rewrite_rules = NULL;
 578
 579 uschar *headers_charset        = US HEADERS_CHARSET;
 580 int     header_insert_maxlen   = 64 * 1024;
 581 header_line  *header_last      = NULL;
 582 header_line  *header_list      = NULL;
 583 int     header_maxsize         = HEADER_MAXSIZE;
 584 int     header_line_maxsize    = 0;
 585
 586 header_name header_names[] = {
 587   { US"bcc",            3, TRUE,  htype_bcc },
 588   { US"cc",             2, TRUE,  htype_cc },
 589   { US"date",           4, TRUE,  htype_date },
 590   { US"delivery-date", 13, FALSE, htype_delivery_date },
 591   { US"envelope-to",   11, FALSE, htype_envelope_to },
 592   { US"from",           4, TRUE,  htype_from },
 593   { US"message-id",    10, TRUE,  htype_id },
 594   { US"received",       8, FALSE, htype_received },
 595   { US"reply-to",       8, FALSE, htype_reply_to },
 596   { US"return-path",   11, FALSE, htype_return_path },
 597   { US"sender",         6, TRUE,  htype_sender },
 598   { US"subject",        7, FALSE, htype_subject },
 599   { US"to",             2, TRUE,  htype_to }
 600 };
 601
 602 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 603
 604 BOOL    header_rewritten       = FALSE;
 605 uschar *helo_accept_junk_hosts = NULL;
 606 uschar *helo_allow_chars       = US"";
 607 uschar *helo_lookup_domains    = US"@ : @[]";
 608 uschar *helo_try_verify_hosts  = NULL;
 609 BOOL    helo_verified          = FALSE;
 610 BOOL    helo_verify_failed     = FALSE;
 611 uschar *helo_verify_hosts      = NULL;
 612 uschar *hex_digits             = US"0123456789abcdef";
 613 uschar *hold_domains           = NULL;
 614 BOOL    host_checking          = FALSE;
 615 BOOL    host_checking_callout  = FALSE;
 616 uschar *host_data              = NULL;
 617 BOOL    host_find_failed_syntax= FALSE;
 618 uschar *host_lookup            = NULL;
 619 BOOL    host_lookup_deferred   = FALSE;
 620 BOOL    host_lookup_failed     = FALSE;
 621 uschar *host_lookup_order      = US"bydns:byaddr";
 622 uschar *host_lookup_msg        = US"";
 623 int     host_number            = 0;
 624 uschar *host_number_string     = NULL;
 625 uschar *host_reject_connection = NULL;
 626 tree_node *hostlist_anchor     = NULL;
 627 int     hostlist_count         = 0;
 628 uschar *hosts_treat_as_local   = NULL;
 629 uschar *hosts_connection_nolog = NULL;
 630
 631 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 632 BOOL    ignore_fromline_local  = FALSE;
 633 uschar *ignore_fromline_hosts  = NULL;
 634 uschar *interface_address      = NULL;
 635 int     interface_port         = -1;
 636 BOOL    is_inetd               = FALSE;
 637 uschar *iterate_item           = NULL;
 638
 639 int     journal_fd             = -1;
 640
 641 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 642
 643 uschar *eldap_dn               = NULL;
 644 int     load_average           = -2;
 645 BOOL    local_error_message    = FALSE;
 646 BOOL    local_from_check       = TRUE;
 647 uschar *local_from_prefix      = NULL;
 648 uschar *local_from_suffix      = NULL;
 649
 650 #if HAVE_IPV6
 651 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 652 #else
 653 uschar *local_interfaces       = US"0.0.0.0";
 654 #endif
 655
 656 uschar *local_scan_data        = NULL;
 657 int     local_scan_timeout     = 5*60;
 658 BOOL    local_sender_retain    = FALSE;
 659 gid_t   local_user_gid         = (gid_t)(-1);
 660 uid_t   local_user_uid         = (uid_t)(-1);
 661
 662 tree_node *localpartlist_anchor= NULL;
 663 int     localpartlist_count    = 0;
 664 uschar *log_buffer             = NULL;
 665 unsigned int log_extra_selector = LX_default;
 666 uschar *log_file_path          = US LOG_FILE_PATH
 667                            "\0<--------------Space to patch log_file_path->";
 668
 669 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 670 are the ones that get put into log_write_selector. They can be used in calls to
 671 log_write() to test for the bit. The options with LX_xxx identifiers have
 672 values greater than 0x80000000 and are put int log_extra_selector (without the
 673 top bit). They are never used in calls to log_write(), but are tested
 674 independently. This separation became necessary when the number of log
 675 selectors was getting close to filling a 32-bit word. */
 676
 677 /* Note that this list must be in alphabetical order. */
 678
 679 bit_table log_options[]        = {
 680   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 681   { US"address_rewrite",              L_address_rewrite },
 682   { US"all",                          L_all },
 683   { US"all_parents",                  L_all_parents },
 684   { US"arguments",                    LX_arguments },
 685   { US"connection_reject",            L_connection_reject },
 686   { US"delay_delivery",               L_delay_delivery },
 687   { US"deliver_time",                 LX_deliver_time },
 688   { US"delivery_size",                LX_delivery_size },
 689   { US"dnslist_defer",                L_dnslist_defer },
 690   { US"etrn",                         L_etrn },
 691   { US"host_lookup_failed",           L_host_lookup_failed },
 692   { US"ident_timeout",                LX_ident_timeout },
 693   { US"incoming_interface",           LX_incoming_interface },
 694   { US"incoming_port",                LX_incoming_port },
 695   { US"lost_incoming_connection",     L_lost_incoming_connection },
 696   { US"outgoing_port",                LX_outgoing_port },
 697   { US"pid",                          LX_pid },
 698   { US"queue_run",                    L_queue_run },
 699   { US"queue_time",                   LX_queue_time },
 700   { US"queue_time_overall",           LX_queue_time_overall },
 701   { US"received_recipients",          LX_received_recipients },
 702   { US"received_sender",              LX_received_sender },
 703   { US"rejected_header",              LX_rejected_header },
 704   { US"rejected_headers",             LX_rejected_header },
 705   { US"retry_defer",                  L_retry_defer },
 706   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 707   { US"sender_on_delivery",           LX_sender_on_delivery },
 708   { US"sender_verify_fail",           LX_sender_verify_fail },
 709   { US"size_reject",                  L_size_reject },
 710   { US"skip_delivery",                L_skip_delivery },
 711   { US"smtp_confirmation",            LX_smtp_confirmation },
 712   { US"smtp_connection",              L_smtp_connection },
 713   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 714   { US"smtp_no_mail",                 LX_smtp_no_mail },
 715   { US"smtp_protocol_error",          L_smtp_protocol_error },
 716   { US"smtp_syntax_error",            L_smtp_syntax_error },
 717   { US"subject",                      LX_subject },
 718   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 719   { US"tls_cipher",                   LX_tls_cipher },
 720   { US"tls_peerdn",                   LX_tls_peerdn },
 721   { US"unknown_in_list",              LX_unknown_in_list }
 722 };
 723
 724 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 725 int     log_reject_target      = 0;
 726 uschar *log_selector_string    = NULL;
 727 FILE   *log_stderr             = NULL;
 728 BOOL    log_testing_mode       = FALSE;
 729 BOOL    log_timezone           = FALSE;
 730 unsigned int log_write_selector= L_default;
 731 uschar *login_sender_address   = NULL;
 732 int     lookup_open_max        = 25;
 733 uschar *lookup_value           = NULL;
 734
 735 macro_item  *macros            = NULL;
 736 uschar *mailstore_basename     = NULL;
 737 #ifdef WITH_CONTENT_SCAN
 738 uschar *malware_name           = NULL;  /* Virus Name */
 739 #endif
 740 int     max_username_length    = 0;
 741 int     message_age            = 0;
 742 uschar *message_body           = NULL;
 743 uschar *message_body_end       = NULL;
 744 int     message_body_size      = 0;
 745 int     message_body_visible   = 500;
 746 int     message_ended          = END_NOTSTARTED;
 747 uschar *message_headers        = NULL;
 748 uschar *message_id;
 749 uschar *message_id_domain      = NULL;
 750 uschar *message_id_text        = NULL;
 751 struct timeval message_id_tv   = { 0, 0 };
 752 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 753 uschar *message_id_external;
 754 int     message_linecount      = 0;
 755 BOOL    message_logs           = TRUE;
 756 int     message_size           = 0;
 757 uschar *message_size_limit     = US"50M";
 758 uschar  message_subdir[2]      = { 0, 0 };
 759 uschar *message_reference      = NULL;
 760
 761 /* MIME ACL expandables */
 762 #ifdef WITH_CONTENT_SCAN
 763 int     mime_anomaly_level     = 0;
 764 uschar *mime_anomaly_text      = NULL;
 765 uschar *mime_boundary          = NULL;
 766 uschar *mime_charset           = NULL;
 767 uschar *mime_content_description = NULL;
 768 uschar *mime_content_disposition = NULL;
 769 uschar *mime_content_id        = NULL;
 770 unsigned int mime_content_size = 0;
 771 uschar *mime_content_transfer_encoding = NULL;
 772 uschar *mime_content_type      = NULL;
 773 uschar *mime_decoded_filename  = NULL;
 774 uschar *mime_filename          = NULL;
 775 int     mime_is_multipart      = 0;
 776 int     mime_is_coverletter    = 0;
 777 int     mime_is_rfc822         = 0;
 778 int     mime_part_count        = -1;
 779 #endif
 780
 781 BOOL    mua_wrapper            = FALSE;
 782
 783 uid_t  *never_users            = NULL;
 784 #ifdef WITH_CONTENT_SCAN
 785 BOOL    no_mbox_unspool        = FALSE;
 786 #endif
 787 BOOL    no_multiline_responses = FALSE;
 788
 789 uid_t   original_euid;
 790 gid_t   originator_gid;
 791 uschar *originator_login       = NULL;
 792 uschar *originator_name        = NULL;
 793 uid_t   originator_uid;
 794 uschar *override_local_interfaces = NULL;
 795 uschar *override_pid_file_path = NULL;
 796
 797 BOOL    parse_allow_group      = FALSE;
 798 BOOL    parse_found_group      = FALSE;
 799 uschar *percent_hack_domains   = NULL;
 800 uschar *pid_file_path          = US PID_FILE_PATH
 801                            "\0<--------------Space to patch pid_file_path->";
 802 BOOL    pipelining_enable      = TRUE;
 803 uschar *pipelining_advertise_hosts = US"*";
 804 BOOL    preserve_message_logs  = FALSE;
 805 uschar *primary_hostname       = NULL;
 806 BOOL    print_topbitchars      = FALSE;
 807 uschar  process_info[PROCESS_INFO_SIZE];
 808 uschar *process_log_path       = NULL;
 809 BOOL    prod_requires_admin    = TRUE;
 810 uschar *prvscheck_address      = NULL;
 811 uschar *prvscheck_keynum       = NULL;
 812 uschar *prvscheck_result       = NULL;
 813
 814
 815 uschar *qualify_domain_recipient = NULL;
 816 uschar *qualify_domain_sender  = NULL;
 817 BOOL    queue_2stage           = FALSE;
 818 uschar *queue_domains          = NULL;
 819 int     queue_interval         = -1;
 820 BOOL    queue_list_requires_admin = TRUE;
 821 BOOL    queue_only             = FALSE;
 822 uschar *queue_only_file        = NULL;
 823 int     queue_only_load        = -1;
 824 BOOL    queue_only_override    = TRUE;
 825 BOOL    queue_only_policy      = FALSE;
 826 BOOL    queue_run_first_delivery = FALSE;
 827 BOOL    queue_run_force        = FALSE;
 828 BOOL    queue_run_in_order     = FALSE;
 829 BOOL    queue_run_local        = FALSE;
 830 int     queue_run_max          = 5;
 831 pid_t   queue_run_pid          = (pid_t)0;
 832 int     queue_run_pipe         = -1;
 833 BOOL    queue_running          = FALSE;
 834 BOOL    queue_smtp             = FALSE;
 835 uschar *queue_smtp_domains     = NULL;
 836
 837 unsigned int random_seed       = 0;
 838 tree_node *ratelimiters_cmd    = NULL;
 839 tree_node *ratelimiters_conn   = NULL;
 840 tree_node *ratelimiters_mail   = NULL;
 841 uschar *raw_active_hostname    = NULL;
 842 uschar *raw_sender             = NULL;
 843 uschar **raw_recipients        = NULL;
 844 int     raw_recipients_count   = 0;
 845
 846 int     rcpt_count             = 0;
 847 int     rcpt_fail_count        = 0;
 848 int     rcpt_defer_count       = 0;
 849 gid_t   real_gid;
 850 uid_t   real_uid;
 851 BOOL    really_exim            = TRUE;
 852 BOOL    receive_call_bombout   = FALSE;
 853 int     receive_linecount      = 0;
 854 int     receive_messagecount   = 0;
 855 int     receive_timeout        = 0;
 856 int     received_count         = 0;
 857 uschar *received_for           = NULL;
 858
 859 /*  This is the default text for Received headers generated by Exim. The
 860 date  will be automatically added on the end. */
 861
 862 uschar *received_header_text   = US
 863      "Received: "
 864      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 865      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 866      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 867      "by $primary_hostname "
 868      "${if def:received_protocol {with $received_protocol}} "
 869      #ifdef SUPPORT_TLS
 870      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 871      #endif
 872      "(Exim $version_number)\n\t"
 873      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 874      "id $message_exim_id"
 875      "${if def:received_for {\n\tfor $received_for}}"
 876      "\0<---------------Space to patch received_header_text->";
 877
 878 int     received_headers_max   = 30;
 879 uschar *received_protocol      = NULL;
 880 int     received_time          = 0;
 881 uschar *recipient_data         = NULL;
 882 uschar *recipient_unqualified_hosts = NULL;
 883 uschar *recipient_verify_failure = NULL;
 884 int     recipients_count       = 0;
 885 BOOL    recipients_discarded   = FALSE;
 886 recipient_item  *recipients_list = NULL;
 887 int     recipients_list_max    = 0;
 888 int     recipients_max         = 0;
 889 BOOL    recipients_max_reject  = FALSE;
 890 const pcre *regex_AUTH         = NULL;
 891 const pcre *regex_check_dns_names = NULL;
 892 const pcre *regex_From         = NULL;
 893 const pcre *regex_IGNOREQUOTA  = NULL;
 894 const pcre *regex_PIPELINING   = NULL;
 895 const pcre *regex_SIZE         = NULL;
 896 const pcre *regex_smtp_code    = NULL;
 897 const pcre *regex_ismsgid      = NULL;
 898 #ifdef WITH_CONTENT_SCAN
 899 uschar *regex_match_string     = NULL;
 900 #endif
 901 int     remote_delivery_count  = 0;
 902 int     remote_max_parallel    = 2;
 903 uschar *remote_sort_domains    = NULL;
 904 int     retry_data_expire      = 7*24*60*60;
 905 int     retry_interval_max     = 24*60*60;
 906 int     retry_maximum_timeout  = 0;        /* set from retry config */
 907 retry_config  *retries         = NULL;
 908 uschar *return_path            = NULL;
 909 BOOL    return_path_remove     = TRUE;
 910 int     rewrite_existflags     = 0;
 911 uschar *rfc1413_hosts          = US"*";
 912 int     rfc1413_query_timeout  = 5;
 913 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 914 uid_t   root_uid               = ROOT_UID;
 915
 916 router_instance  *routers  = NULL;
 917 router_instance  router_defaults = {
 918     NULL,                      /* chain pointer */
 919     NULL,                      /* name */
 920     NULL,                      /* info */
 921     NULL,                      /* private options block pointer */
 922     NULL,                      /* driver name */
 923
 924     NULL,                      /* address_data */
 925 #ifdef EXPERIMENTAL_BRIGHTMAIL
 926     NULL,                      /* bmi_rule */
 927 #endif
 928     NULL,                      /* cannot_route_message */
 929     NULL,                      /* condition */
 930     NULL,                      /* current_directory */
 931     NULL,                      /* debug_string */
 932     NULL,                      /* domains */
 933     NULL,                      /* errors_to */
 934     NULL,                      /* expand_gid */
 935     NULL,                      /* expand_uid */
 936     NULL,                      /* expand_more */
 937     NULL,                      /* expand_unseen */
 938     NULL,                      /* extra_headers */
 939     NULL,                      /* fallback_hosts */
 940     NULL,                      /* home_directory */
 941     NULL,                      /* ignore_target_hosts */
 942     NULL,                      /* local_parts */
 943     NULL,                      /* pass_router_name */
 944     NULL,                      /* prefix */
 945     NULL,                      /* redirect_router_name */
 946     NULL,                      /* remove_headers */
 947     NULL,                      /* require_files */
 948     NULL,                      /* router_home_directory */
 949     US"freeze",                /* self */
 950     NULL,                      /* senders */
 951     NULL,                      /* suffix */
 952     NULL,                      /* translate_ip_address */
 953     NULL,                      /* transport_name */
 954
 955     TRUE,                      /* address_test */
 956 #ifdef EXPERIMENTAL_BRIGHTMAIL
 957     FALSE,                     /* bmi_deliver_alternate */
 958     FALSE,                     /* bmi_deliver_default */
 959     FALSE,                     /* bmi_dont_deliver */
 960 #endif
 961     TRUE,                      /* expn */
 962     FALSE,                     /* caseful_local_part */
 963     FALSE,                     /* check_local_user */
 964     FALSE,                     /* disable_logging */
 965     FALSE,                     /* fail_verify_recipient */
 966     FALSE,                     /* fail_verify_sender */
 967     FALSE,                     /* gid_set */
 968     FALSE,                     /* initgroups */
 969     TRUE_UNSET,                /* log_as_local */
 970     TRUE,                      /* more */
 971     FALSE,                     /* pass_on_timeout */
 972     FALSE,                     /* prefix_optional */
 973     TRUE,                      /* repeat_use */
 974     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 975     FALSE,                     /* same_domain_copy_routing */
 976     FALSE,                     /* self_rewrite */
 977     FALSE,                     /* suffix_optional */
 978     FALSE,                     /* verify_only */
 979     TRUE,                      /* verify_recipient */
 980     TRUE,                      /* verify_sender */
 981     FALSE,                     /* uid_set */
 982     FALSE,                     /* unseen */
 983
 984     self_freeze,               /* self_code */
 985     (uid_t)(-1),               /* uid */
 986     (gid_t)(-1),               /* gid */
 987
 988     NULL,                      /* fallback_hostlist */
 989     NULL,                      /* transport instance */
 990     NULL,                      /* pass_router */
 991     NULL                       /* redirect_router */
 992 };
 993
 994 ip_address_item *running_interfaces = NULL;
 995 BOOL    running_in_test_harness = FALSE;
 996
 997 /* This is a weird one. The following string gets patched in the binary by the
 998 script that sets up a copy of Exim for running in the test harness. It seems
 999 that compilers are now clever, and share constant strings if they can.
1000 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1001 make use of the end of this string in order to save space. So the patching then
1002 wrecks this. We default this optimization by adding some additional characters
1003 onto the end of the string. */
1004
1005 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1006
1007 int     runrc                  = 0;
1008
1009 uschar *search_error_message   = NULL;
1010 BOOL    search_find_defer      = FALSE;
1011 uschar *self_hostname          = NULL;
1012 uschar *sender_address         = NULL;
1013 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1014 uschar *sender_address_data    = NULL;
1015 BOOL    sender_address_forced  = FALSE;
1016 uschar *sender_address_unrewritten = NULL;
1017 uschar *sender_data            = NULL;
1018 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1019 uschar *sender_fullhost        = NULL;
1020 uschar *sender_helo_name       = NULL;
1021 uschar **sender_host_aliases   = &no_aliases;
1022 uschar *sender_host_address    = NULL;
1023 uschar *sender_host_authenticated = NULL;
1024 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1025 uschar *sender_host_name       = NULL;
1026 int     sender_host_port       = 0;
1027 BOOL    sender_host_notsocket  = FALSE;
1028 BOOL    sender_host_unknown    = FALSE;
1029 uschar *sender_ident           = NULL;
1030 BOOL    sender_local           = FALSE;
1031 BOOL    sender_name_forced     = FALSE;
1032 uschar *sender_rate            = NULL;
1033 uschar *sender_rate_limit      = NULL;
1034 uschar *sender_rate_period     = NULL;
1035 uschar *sender_rcvhost         = NULL;
1036 BOOL    sender_set_untrusted   = FALSE;
1037 uschar *sender_unqualified_hosts = NULL;
1038 uschar *sender_verify_failure = NULL;
1039 address_item *sender_verified_list  = NULL;
1040 address_item *sender_verified_failed = NULL;
1041 int     sender_verified_rc     = -1;
1042 BOOL    sender_verified_responded = FALSE;
1043 uschar *sending_ip_address     = NULL;
1044 int     sending_port           = -1;
1045 volatile  BOOL sigalrm_seen    = FALSE;
1046 uschar **sighup_argv           = NULL;
1047 int     smtp_accept_count      = 0;
1048 BOOL    smtp_accept_keepalive  = TRUE;
1049 int     smtp_accept_max        = 20;
1050 int     smtp_accept_max_nonmail= 10;
1051 uschar *smtp_accept_max_nonmail_hosts = US"*";
1052 int     smtp_accept_max_per_connection = 1000;
1053 uschar *smtp_accept_max_per_host = NULL;
1054 int     smtp_accept_queue      = 0;
1055 int     smtp_accept_queue_per_connection = 10;
1056 int     smtp_accept_reserve    = 0;
1057 uschar *smtp_active_hostname   = NULL;
1058 BOOL    smtp_authenticated     = FALSE;
1059 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1060                              "Exim $version_number $tod_full"
1061                              "\0<---------------Space to patch smtp_banner->";
1062 BOOL    smtp_batched_input     = FALSE;
1063 BOOL    smtp_check_spool_space = TRUE;
1064 int     smtp_ch_index          = 0;
1065 uschar *smtp_cmd_argument      = NULL;
1066 uschar *smtp_cmd_buffer        = NULL;
1067 time_t  smtp_connection_start  = 0;
1068 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1069 int     smtp_connect_backlog   = 20;
1070 double  smtp_delay_mail        = 0.0;
1071 double  smtp_delay_rcpt        = 0.0;
1072 BOOL    smtp_enforce_sync      = TRUE;
1073 FILE   *smtp_in                = NULL;
1074 BOOL    smtp_input             = FALSE;
1075 int     smtp_load_reserve      = -1;
1076 int     smtp_mailcmd_count     = 0;
1077 FILE   *smtp_out               = NULL;
1078 uschar *smtp_etrn_command      = NULL;
1079 BOOL    smtp_etrn_serialize    = TRUE;
1080 int     smtp_max_synprot_errors= 3;
1081 int     smtp_max_unknown_commands = 3;
1082 uschar *smtp_ratelimit_hosts   = NULL;
1083 uschar *smtp_ratelimit_mail    = NULL;
1084 uschar *smtp_ratelimit_rcpt    = NULL;
1085 uschar *smtp_read_error        = US"";
1086 int     smtp_receive_timeout   = 5*60;
1087 uschar *smtp_reserve_hosts     = NULL;
1088 BOOL    smtp_return_error_details = FALSE;
1089 int     smtp_rlm_base          = 0;
1090 double  smtp_rlm_factor        = 0.0;
1091 int     smtp_rlm_limit         = 0;
1092 int     smtp_rlm_threshold     = INT_MAX;
1093 int     smtp_rlr_base          = 0;
1094 double  smtp_rlr_factor        = 0.0;
1095 int     smtp_rlr_limit         = 0;
1096 int     smtp_rlr_threshold     = INT_MAX;
1097 BOOL    smtp_use_pipelining    = FALSE;
1098 BOOL    smtp_use_size          = FALSE;
1099
1100 #ifdef WITH_CONTENT_SCAN
1101 uschar *spamd_address          = US"127.0.0.1 783";
1102 uschar *spam_bar               = NULL;
1103 uschar *spam_report            = NULL;
1104 uschar *spam_score             = NULL;
1105 uschar *spam_score_int         = NULL;
1106 #endif
1107 #ifdef EXPERIMENTAL_SPF
1108 uschar *spf_header_comment     = NULL;
1109 uschar *spf_received           = NULL;
1110 uschar *spf_result             = NULL;
1111 uschar *spf_smtp_comment       = NULL;
1112 #endif
1113
1114 BOOL    split_spool_directory  = FALSE;
1115 uschar *spool_directory        = US SPOOL_DIRECTORY
1116                            "\0<--------------Space to patch spool_directory->";
1117 #ifdef EXPERIMENTAL_SRS
1118 uschar *srs_config             = NULL;
1119 uschar *srs_db_address         = NULL;
1120 uschar *srs_db_key             = NULL;
1121 int     srs_hashlength         = 6;
1122 int     srs_hashmin            = -1;
1123 int     srs_maxage             = 31;
1124 uschar *srs_orig_recipient     = NULL;
1125 uschar *srs_orig_sender        = NULL;
1126 uschar *srs_recipient          = NULL;
1127 uschar *srs_secrets            = NULL;
1128 uschar *srs_status             = NULL;
1129 BOOL    srs_usehash            = TRUE;
1130 BOOL    srs_usetimestamp       = TRUE;
1131 #endif
1132 BOOL    strict_acl_vars        = FALSE;
1133 int     string_datestamp_offset= -1;
1134 BOOL    strip_excess_angle_brackets = FALSE;
1135 BOOL    strip_trailing_dot     = FALSE;
1136 uschar *submission_domain      = NULL;
1137 BOOL    submission_mode        = FALSE;
1138 uschar *submission_name        = NULL;
1139 BOOL    suppress_local_fixups  = FALSE;
1140 BOOL    synchronous_delivery   = FALSE;
1141 BOOL    syslog_duplication     = TRUE;
1142 int     syslog_facility        = LOG_MAIL;
1143 uschar *syslog_processname     = US"exim";
1144 BOOL    syslog_timestamp       = TRUE;
1145 uschar *system_filter          = NULL;
1146
1147 uschar *system_filter_directory_transport = NULL;
1148 uschar *system_filter_file_transport = NULL;
1149 uschar *system_filter_pipe_transport = NULL;
1150 uschar *system_filter_reply_transport = NULL;
1151
1152 gid_t   system_filter_gid      = 0;
1153 BOOL    system_filter_gid_set  = FALSE;
1154 uid_t   system_filter_uid      = 0;
1155 BOOL    system_filter_uid_set  = FALSE;
1156 BOOL    system_filtering       = FALSE;
1157
1158 BOOL    tcp_nodelay            = TRUE;
1159 int     thismessage_size_limit = 0;
1160 int     timeout_frozen_after   = 0;
1161 BOOL    timestamps_utc         = FALSE;
1162
1163 transport_instance  *transports = NULL;
1164
1165 transport_instance  transport_defaults = {
1166     NULL,                     /* chain pointer */
1167     NULL,                     /* name */
1168     NULL,                     /* info */
1169     NULL,                     /* private options block pointer */
1170     NULL,                     /* driver name */
1171     NULL,                     /* setup entry point */
1172     1,                        /* batch_max */
1173     NULL,                     /* batch_id */
1174     NULL,                     /* home_dir */
1175     NULL,                     /* current_dir */
1176     TRUE,                     /* multi-domain */
1177     FALSE,                    /* overrides_hosts */
1178     100,                      /* max_addresses */
1179     500,                      /* connection_max_messages */
1180     FALSE,                    /* deliver_as_creator */
1181     FALSE,                    /* disable_logging */
1182     FALSE,                    /* initgroups */
1183     FALSE,                    /* uid_set */
1184     FALSE,                    /* gid_set */
1185     (uid_t)(-1),              /* uid */
1186     (gid_t)(-1),              /* gid */
1187     NULL,                     /* expand_uid */
1188     NULL,                     /* expand_gid */
1189     NULL,                     /* warn_message */
1190     NULL,                     /* shadow */
1191     NULL,                     /* shadow_condition */
1192     NULL,                     /* filter_command */
1193     NULL,                     /* add_headers */
1194     NULL,                     /* remove_headers */
1195     NULL,                     /* return_path */
1196     NULL,                     /* debug_string */
1197     NULL,                     /* message_size_limit */
1198     NULL,                     /* headers_rewrite */
1199     NULL,                     /* rewrite_rules */
1200     0,                        /* rewrite_existflags */
1201     300,                      /* filter_timeout */
1202     FALSE,                    /* body_only */
1203     FALSE,                    /* delivery_date_add */
1204     FALSE,                    /* envelope_to_add */
1205     FALSE,                    /* headers_only */
1206     FALSE,                    /* rcpt_include_affixes */
1207     FALSE,                    /* return_path_add */
1208     FALSE,                    /* return_output */
1209     FALSE,                    /* return_fail_output */
1210     FALSE,                    /* log_output */
1211     FALSE,                    /* log_fail_output */
1212     FALSE,                    /* log_defer_output */
1213     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1214                                  1 nor 0 so can detect unset */
1215 };
1216
1217 int     transport_count;
1218 uschar **transport_filter_argv  = NULL;
1219 int     transport_filter_timeout;
1220 BOOL    transport_filter_timed_out = FALSE;
1221 int     transport_write_timeout= 0;
1222
1223 tree_node  *tree_dns_fails     = NULL;
1224 tree_node  *tree_duplicates    = NULL;
1225 tree_node  *tree_nonrecipients = NULL;
1226 tree_node  *tree_unusable      = NULL;
1227
1228 BOOL    trusted_caller         = FALSE;
1229 gid_t  *trusted_groups         = NULL;
1230 uid_t  *trusted_users          = NULL;
1231 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1232
1233 uschar *unknown_login          = NULL;
1234 uschar *unknown_username       = NULL;
1235 uschar *untrusted_set_sender   = NULL;
1236
1237 /*  A regex for matching a "From_" line in an incoming message, in the form
1238
1239     From ph10 Fri Jan  5 12:35 GMT 1996
1240
1241 which  the "mail" commands send to the MTA (undocumented, of course), or in
1242 the  form
1243
1244     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1245
1246 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1247 Because  of variations in time formats, just match up to the minutes. That
1248 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1249 so  just require one digit for hours and minutes. The weekday is also absent
1250 in  some forms. */
1251
1252 uschar *uucp_from_pattern      = US
1253    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1254    "(?:"                                          /* Non-extracting bracket */
1255    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1256    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1257    ")"                                            /* End alternation */
1258    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1259
1260 uschar *uucp_from_sender       = US"$1";
1261
1262 uschar *warn_message_file      = NULL;
1263 uschar *warnmsg_delay          = NULL;
1264 uschar *warnmsg_recipients     = NULL;
1265 BOOL    write_rejectlog        = TRUE;
1266
1267 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1268 uschar *version_date           = US"?";
1269 uschar *version_cnumber        = US"????";
1270 uschar *version_string         = US"?";
1271
1272 int     warning_count          = 0;
1273
1274 /*  End of globals.c */