src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2012 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "driver",        opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, driver_name)) },
  22   { "public_name",   opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, public_name)) },
  24   { "server_advertise_condition", opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, advertise_condition))},
  26   { "server_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, server_condition)) },
  28   { "server_debug_print", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_debug_string)) },
  30   { "server_mail_auth_condition", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  32   { "server_set_id", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, set_id)) }
  34 };
  35
  36 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  37
  38 /* An empty host aliases list. */
  39
  40 uschar *no_aliases             = NULL;
  41
  42
  43 /* For comments on these variables, see globals.h. I'm too idle to
  44 duplicate them here... */
  45
  46 #ifdef EXIM_PERL
  47 uschar *opt_perl_startup       = NULL;
  48 BOOL    opt_perl_at_start      = FALSE;
  49 BOOL    opt_perl_started       = FALSE;
  50 #endif
  51
  52 #ifdef EXPAND_DLFUNC
  53 tree_node *dlobj_anchor        = NULL;
  54 #endif
  55
  56 #ifdef LOOKUP_IBASE
  57 uschar *ibase_servers          = NULL;
  58 #endif
  59
  60 #ifdef LOOKUP_LDAP
  61 uschar *eldap_ca_cert_dir      = NULL;
  62 uschar *eldap_ca_cert_file     = NULL;
  63 uschar *eldap_cert_file        = NULL;
  64 uschar *eldap_cert_key         = NULL;
  65 uschar *eldap_cipher_suite     = NULL;
  66 uschar *eldap_default_servers  = NULL;
  67 uschar *eldap_require_cert     = NULL;
  68 int     eldap_version          = -1;
  69 BOOL    eldap_start_tls        = FALSE;
  70 #endif
  71
  72 #ifdef LOOKUP_MYSQL
  73 uschar *mysql_servers          = NULL;
  74 #endif
  75
  76 #ifdef LOOKUP_ORACLE
  77 uschar *oracle_servers         = NULL;
  78 #endif
  79
  80 #ifdef LOOKUP_PGSQL
  81 uschar *pgsql_servers          = NULL;
  82 #endif
  83
  84 #ifdef LOOKUP_SQLITE
  85 int     sqlite_lock_timeout    = 5;
  86 #endif
  87
  88 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  89 BOOL    move_frozen_messages   = FALSE;
  90 #endif
  91
  92 /* These variables are outside the #ifdef because it keeps the code less
  93 cluttered in several places (e.g. during logging) if we can always refer to
  94 them. Also, the tls_ variables are now always visible. */
  95
  96 BOOL    tls_active             = -1;
  97 int     tls_bits               = 0;
  98 BOOL    tls_certificate_verified = FALSE;
  99 uschar *tls_cipher             = NULL;
 100 BOOL    tls_on_connect         = FALSE;
 101 uschar *tls_on_connect_ports   = NULL;
 102 uschar *tls_peerdn             = NULL;
 103
 104 #ifdef SUPPORT_TLS
 105 BOOL    gnutls_compat_mode     = FALSE;
 106 uschar *gnutls_require_mac     = NULL;
 107 uschar *gnutls_require_kx      = NULL;
 108 uschar *gnutls_require_proto   = NULL;
 109 uschar *openssl_options        = NULL;
 110 const pcre *regex_STARTTLS     = NULL;
 111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 112 uschar *tls_certificate        = NULL;
 113 uschar *tls_crl                = NULL;
 114 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 115 that's the interop problem which has been observed: GnuTLS suggesting a higher
 116 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 117 int     tls_dh_max_bits        = 2236;
 118 uschar *tls_dhparam            = NULL;
 119 #if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS)
 120 uschar *tls_ocsp_file          = NULL;
 121 #endif
 122 BOOL    tls_offered            = FALSE;
 123 uschar *tls_privatekey         = NULL;
 124 BOOL    tls_remember_esmtp     = FALSE;
 125 uschar *tls_require_ciphers    = NULL;
 126 uschar *tls_sni                = NULL;
 127 uschar *tls_try_verify_hosts   = NULL;
 128 uschar *tls_verify_certificates= NULL;
 129 uschar *tls_verify_hosts       = NULL;
 130 #endif
 131
 132
 133 /* Input-reading functions for messages, so we can use special ones for
 134 incoming TCP/IP. The defaults use stdin. We never need these for any
 135 stand-alone tests. */
 136
 137 #ifndef STAND_ALONE
 138 int (*receive_getc)(void)      = stdin_getc;
 139 int (*receive_ungetc)(int)     = stdin_ungetc;
 140 int (*receive_feof)(void)      = stdin_feof;
 141 int (*receive_ferror)(void)    = stdin_ferror;
 142 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 143 #endif
 144
 145
 146 /* List of per-address expansion variables for clearing and saving/restoring
 147 when verifying one address while routing/verifying another. We have to have
 148 the size explicit, because it is referenced from more than one module. */
 149
 150 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 151   &deliver_address_data,
 152   &deliver_domain,
 153   &deliver_domain_data,
 154   &deliver_domain_orig,
 155   &deliver_domain_parent,
 156   &deliver_localpart,
 157   &deliver_localpart_data,
 158   &deliver_localpart_orig,
 159   &deliver_localpart_parent,
 160   &deliver_localpart_prefix,
 161   &deliver_localpart_suffix,
 162   (uschar **)(&deliver_recipients),
 163   &deliver_host,
 164   &deliver_home,
 165   &address_file,
 166   &address_pipe,
 167   &self_hostname,
 168   NULL };
 169
 170 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 171
 172 /* General global variables */
 173
 174 header_line *acl_added_headers = NULL;
 175 tree_node *acl_anchor          = NULL;
 176
 177 uschar *acl_not_smtp           = NULL;
 178 #ifdef WITH_CONTENT_SCAN
 179 uschar *acl_not_smtp_mime      = NULL;
 180 #endif
 181 uschar *acl_not_smtp_start     = NULL;
 182
 183 uschar *acl_smtp_auth          = NULL;
 184 uschar *acl_smtp_connect       = NULL;
 185 uschar *acl_smtp_data          = NULL;
 186 #ifndef DISABLE_DKIM
 187 uschar *acl_smtp_dkim          = NULL;
 188 #endif
 189 uschar *acl_smtp_etrn          = NULL;
 190 uschar *acl_smtp_expn          = NULL;
 191 uschar *acl_smtp_helo          = NULL;
 192 uschar *acl_smtp_mail          = NULL;
 193 uschar *acl_smtp_mailauth      = NULL;
 194 #ifdef WITH_CONTENT_SCAN
 195 uschar *acl_smtp_mime          = NULL;
 196 #endif
 197 uschar *acl_smtp_notquit       = NULL;
 198 uschar *acl_smtp_predata       = NULL;
 199 uschar *acl_smtp_quit          = NULL;
 200 uschar *acl_smtp_rcpt          = NULL;
 201 uschar *acl_smtp_starttls      = NULL;
 202 uschar *acl_smtp_vrfy          = NULL;
 203
 204 BOOL    acl_temp_details       = FALSE;
 205 tree_node *acl_var_c           = NULL;
 206 tree_node *acl_var_m           = NULL;
 207 uschar *acl_verify_message     = NULL;
 208 string_item *acl_warn_logged   = NULL;
 209
 210 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 211 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 212
 213 uschar *acl_wherenames[]       = { US"RCPT",
 214                                    US"MAIL",
 215                                    US"PREDATA",
 216                                    US"MIME",
 217                                    US"DKIM",
 218                                    US"DATA",
 219                                    US"non-SMTP",
 220                                    US"AUTH",
 221                                    US"connection",
 222                                    US"ETRN",
 223                                    US"EXPN",
 224                                    US"EHLO or HELO",
 225                                    US"MAILAUTH",
 226                                    US"non-SMTP-start",
 227                                    US"NOTQUIT",
 228                                    US"QUIT",
 229                                    US"STARTTLS",
 230                                    US"VRFY"
 231                                  };
 232
 233 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 234                                    US"550",     /* MAIL */
 235                                    US"550",     /* PREDATA */
 236                                    US"550",     /* MIME */
 237                                    US"550",     /* DKIM */
 238                                    US"550",     /* DATA */
 239                                    US"0",       /* not SMTP; not relevant */
 240                                    US"503",     /* AUTH */
 241                                    US"550",     /* connect */
 242                                    US"458",     /* ETRN */
 243                                    US"550",     /* EXPN */
 244                                    US"550",     /* HELO/EHLO */
 245                                    US"0",       /* MAILAUTH; not relevant */
 246                                    US"0",       /* not SMTP; not relevant */
 247                                    US"0",       /* NOTQUIT; not relevant */
 248                                    US"0",       /* QUIT; not relevant */
 249                                    US"550",     /* STARTTLS */
 250                                    US"252"      /* VRFY */
 251                                  };
 252
 253 BOOL    active_local_from_check = FALSE;
 254 BOOL    active_local_sender_retain = FALSE;
 255 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 256 uschar *add_environment        = NULL;
 257 address_item  *addr_duplicate  = NULL;
 258
 259 address_item address_defaults = {
 260   NULL,                 /* next */
 261   NULL,                 /* parent */
 262   NULL,                 /* first */
 263   NULL,                 /* dupof */
 264   NULL,                 /* start_router */
 265   NULL,                 /* router */
 266   NULL,                 /* transport */
 267   NULL,                 /* host_list */
 268   NULL,                 /* host_used */
 269   NULL,                 /* fallback_hosts */
 270   NULL,                 /* reply */
 271   NULL,                 /* retries */
 272   NULL,                 /* address */
 273   NULL,                 /* unique */
 274   NULL,                 /* cc_local_part */
 275   NULL,                 /* lc_local_part */
 276   NULL,                 /* local_part */
 277   NULL,                 /* prefix */
 278   NULL,                 /* suffix */
 279   NULL,                 /* domain */
 280   NULL,                 /* address_retry_key */
 281   NULL,                 /* domain_retry_key */
 282   NULL,                 /* current_dir */
 283   NULL,                 /* home_dir */
 284   NULL,                 /* message */
 285   NULL,                 /* user_message */
 286   NULL,                 /* onetime_parent */
 287   NULL,                 /* pipe_expandn */
 288   NULL,                 /* return_filename */
 289   NULL,                 /* self_hostname */
 290   NULL,                 /* shadow_message */
 291   #ifdef SUPPORT_TLS
 292   NULL,                 /* cipher */
 293   NULL,                 /* peerdn */
 294   #endif
 295   (uid_t)(-1),          /* uid */
 296   (gid_t)(-1),          /* gid */
 297   0,                    /* flags */
 298   { 0 },                /* domain_cache - any larger array should be zeroed */
 299   { 0 },                /* localpart_cache - ditto */
 300   -1,                   /* mode */
 301   0,                    /* more_errno */
 302   ERRNO_UNKNOWNERROR,   /* basic_errno */
 303   0,                    /* child_count */
 304   -1,                   /* return_file */
 305   SPECIAL_NONE,         /* special_action */
 306   DEFER,                /* transport_return */
 307   {                     /* fields that are propagated to children */
 308     NULL,               /* address_data */
 309     NULL,               /* domain_data */
 310     NULL,               /* localpart_data */
 311     NULL,               /* errors_address */
 312     NULL,               /* extra_headers */
 313     NULL,               /* remove_headers */
 314 #ifdef EXPERIMENTAL_SRS
 315     NULL,               /* srs_sender */
 316 #endif
 317   }
 318 };
 319
 320 uschar *address_file           = NULL;
 321 uschar *address_pipe           = NULL;
 322 BOOL    address_test_mode      = FALSE;
 323 tree_node *addresslist_anchor  = NULL;
 324 int     addresslist_count      = 0;
 325 gid_t  *admin_groups           = NULL;
 326 BOOL    admin_user             = FALSE;
 327 BOOL    allow_auth_unadvertised= FALSE;
 328 BOOL    allow_domain_literals  = FALSE;
 329 BOOL    allow_mx_to_ip         = FALSE;
 330 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 331 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 332 BOOL    allow_utf8_domains     = FALSE;
 333 uschar *authenticated_id       = NULL;
 334 uschar *authenticated_sender   = NULL;
 335 BOOL    authentication_failed  = FALSE;
 336 auth_instance  *auths          = NULL;
 337 uschar *auth_advertise_hosts   = US"*";
 338 auth_instance auth_defaults    = {
 339     NULL,                      /* chain pointer */
 340     NULL,                      /* name */
 341     NULL,                      /* info */
 342     NULL,                      /* private options block pointer */
 343     NULL,                      /* driver_name */
 344     NULL,                      /* advertise_condition */
 345     NULL,                      /* client_condition */
 346     NULL,                      /* public_name */
 347     NULL,                      /* set_id */
 348     NULL,                      /* server_mail_auth_condition */
 349     NULL,                      /* server_debug_string */
 350     NULL,                      /* server_condition */
 351     FALSE,                     /* client */
 352     FALSE,                     /* server */
 353     FALSE                      /* advertised */
 354 };
 355
 356 uschar *auth_defer_msg         = US"reason not recorded";
 357 uschar *auth_defer_user_msg    = US"";
 358 uschar *auth_vars[AUTH_VARS];
 359 int     auto_thaw              = 0;
 360 #ifdef WITH_CONTENT_SCAN
 361 BOOL    av_failed              = FALSE;
 362 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 363 #endif
 364
 365 BOOL    background_daemon      = TRUE;
 366
 367 #if BASE_62 == 62
 368 uschar *base62_chars=
 369     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 370 #else
 371 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 372 #endif
 373
 374 uschar *bi_command             = NULL;
 375 uschar *big_buffer             = NULL;
 376 int     big_buffer_size        = BIG_BUFFER_SIZE;
 377 #ifdef EXPERIMENTAL_BRIGHTMAIL
 378 uschar *bmi_alt_location       = NULL;
 379 uschar *bmi_base64_tracker_verdict = NULL;
 380 uschar *bmi_base64_verdict     = NULL;
 381 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 382 int     bmi_deliver            = 1;
 383 int     bmi_run                = 0;
 384 uschar *bmi_verdicts           = NULL;
 385 #endif
 386 int     body_linecount         = 0;
 387 int     body_zerocount         = 0;
 388 uschar *bounce_message_file    = NULL;
 389 uschar *bounce_message_text    = NULL;
 390 uschar *bounce_recipient       = NULL;
 391 BOOL    bounce_return_body     = TRUE;
 392 BOOL    bounce_return_message  = TRUE;
 393 int     bounce_return_size_limit = 100*1024;
 394 uschar *bounce_sender_authentication = NULL;
 395 int     bsmtp_transaction_linecount = 0;
 396
 397 int     callout_cache_domain_positive_expire = 7*24*60*60;
 398 int     callout_cache_domain_negative_expire = 3*60*60;
 399 int     callout_cache_positive_expire = 24*60*60;
 400 int     callout_cache_negative_expire = 2*60*60;
 401 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 402 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 403 int     check_log_inodes       = 0;
 404 int     check_log_space        = 0;
 405 BOOL    check_rfc2047_length   = TRUE;
 406 int     check_spool_inodes     = 0;
 407 int     check_spool_space      = 0;
 408 int     clmacro_count          = 0;
 409 uschar *clmacros[MAX_CLMACROS];
 410 BOOL    config_changed         = FALSE;
 411 FILE   *config_file            = NULL;
 412 uschar *config_filename        = NULL;
 413 int     config_lineno          = 0;
 414 #ifdef CONFIGURE_GROUP
 415 gid_t   config_gid             = CONFIGURE_GROUP;
 416 #endif
 417 uschar *config_main_filelist   = US CONFIGURE_FILE
 418                          "\0<-----------Space to patch configure_filename->";
 419 uschar *config_main_filename   = NULL;
 420
 421 #ifdef CONFIGURE_OWNER
 422 uid_t   config_uid             = CONFIGURE_OWNER;
 423 #endif
 424
 425 int     connection_max_messages= -1;
 426 uschar *continue_hostname      = NULL;
 427 uschar *continue_host_address  = NULL;
 428 BOOL    continue_more          = FALSE;
 429 int     continue_sequence      = 1;
 430 uschar *continue_transport     = NULL;
 431
 432 uschar *csa_status             = NULL;
 433
 434 BOOL    daemon_listen          = FALSE;
 435 uschar *daemon_smtp_port       = US"smtp";
 436 int     daemon_startup_retries = 9;
 437 int     daemon_startup_sleep   = 30;
 438
 439 #ifdef EXPERIMENTAL_DCC
 440 BOOL    dcc_direct_add_header  = FALSE;
 441 uschar *dcc_header             = NULL;
 442 uschar *dcc_result             = NULL;
 443 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 444 uschar *dccifd_options         = US"header";
 445 #endif
 446
 447 BOOL    debug_daemon           = FALSE;
 448 int     debug_fd               = -1;
 449 FILE   *debug_file             = NULL;
 450 bit_table debug_options[]      = {
 451   { US"acl",            D_acl },
 452   { US"all",            D_all },
 453   { US"auth",           D_auth },
 454   { US"deliver",        D_deliver },
 455   { US"dns",            D_dns },
 456   { US"dnsbl",          D_dnsbl },
 457   { US"exec",           D_exec },
 458   { US"expand",         D_expand },
 459   { US"filter",         D_filter },
 460   { US"hints_lookup",   D_hints_lookup },
 461   { US"host_lookup",    D_host_lookup },
 462   { US"ident",          D_ident },
 463   { US"interface",      D_interface },
 464   { US"lists",          D_lists },
 465   { US"load",           D_load },
 466   { US"local_scan",     D_local_scan },
 467   { US"lookup",         D_lookup },
 468   { US"memory",         D_memory },
 469   { US"pid",            D_pid },
 470   { US"process_info",   D_process_info },
 471   { US"queue_run",      D_queue_run },
 472   { US"receive",        D_receive },
 473   { US"resolver",       D_resolver },
 474   { US"retry",          D_retry },
 475   { US"rewrite",        D_rewrite },
 476   { US"route",          D_route },
 477   { US"timestamp",      D_timestamp },
 478   { US"tls",            D_tls },
 479   { US"transport",      D_transport },
 480   { US"uid",            D_uid },
 481   { US"verify",         D_verify }
 482 };
 483 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 484 unsigned int debug_selector    = 0;
 485 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 486 uschar *delay_warning_condition=
 487   US"${if or {"
 488             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 489             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 490             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 491             "} {no}{yes}}";
 492 BOOL    delivery_date_remove   = TRUE;
 493 uschar *deliver_address_data   = NULL;
 494 int     deliver_datafile       = -1;
 495 uschar *deliver_domain         = NULL;
 496 uschar *deliver_domain_data    = NULL;
 497 uschar *deliver_domain_orig    = NULL;
 498 uschar *deliver_domain_parent  = NULL;
 499 BOOL    deliver_drop_privilege = FALSE;
 500 BOOL    deliver_firsttime      = FALSE;
 501 BOOL    deliver_force          = FALSE;
 502 BOOL    deliver_freeze         = FALSE;
 503 int     deliver_frozen_at      = 0;
 504 uschar *deliver_home           = NULL;
 505 uschar *deliver_host           = NULL;
 506 uschar *deliver_host_address   = NULL;
 507 uschar *deliver_in_buffer      = NULL;
 508 ino_t   deliver_inode          = 0;
 509 uschar *deliver_localpart      = NULL;
 510 uschar *deliver_localpart_data = NULL;
 511 uschar *deliver_localpart_orig = NULL;
 512 uschar *deliver_localpart_parent = NULL;
 513 uschar *deliver_localpart_prefix = NULL;
 514 uschar *deliver_localpart_suffix = NULL;
 515 BOOL    deliver_force_thaw     = FALSE;
 516 BOOL    deliver_manual_thaw    = FALSE;
 517 uschar *deliver_out_buffer     = NULL;
 518 int     deliver_queue_load_max = -1;
 519 address_item  *deliver_recipients = NULL;
 520 uschar *deliver_selectstring   = NULL;
 521 BOOL    deliver_selectstring_regex = FALSE;
 522 uschar *deliver_selectstring_sender = NULL;
 523 BOOL    deliver_selectstring_sender_regex = FALSE;
 524 #ifdef WITH_OLD_DEMIME
 525 int     demime_errorlevel      = 0;
 526 int     demime_ok              = 0;
 527 uschar *demime_reason          = NULL;
 528 #endif
 529 BOOL    disable_callout_flush  = FALSE;
 530 BOOL    disable_delay_flush    = FALSE;
 531 #ifdef ENABLE_DISABLE_FSYNC
 532 BOOL    disable_fsync          = FALSE;
 533 #endif
 534 BOOL    disable_ipv6           = FALSE;
 535 BOOL    disable_logging        = FALSE;
 536
 537 #ifndef DISABLE_DKIM
 538 uschar *dkim_cur_signer          = NULL;
 539 uschar *dkim_signers             = NULL;
 540 uschar *dkim_signing_domain      = NULL;
 541 uschar *dkim_signing_selector    = NULL;
 542 uschar *dkim_verify_signers      = US"$dkim_signers";
 543 BOOL    dkim_collect_input       = FALSE;
 544 BOOL    dkim_disable_verify      = FALSE;
 545 #endif
 546
 547 uschar *dns_again_means_nonexist = NULL;
 548 int     dns_csa_search_limit   = 5;
 549 BOOL    dns_csa_use_reverse    = TRUE;
 550 uschar *dns_ipv4_lookup        = NULL;
 551 int     dns_retrans            = 0;
 552 int     dns_retry              = 0;
 553 int     dns_use_edns0          = -1; /* <0 = not coerced */
 554 uschar *dnslist_domain         = NULL;
 555 uschar *dnslist_matched        = NULL;
 556 uschar *dnslist_text           = NULL;
 557 uschar *dnslist_value          = NULL;
 558 tree_node *domainlist_anchor   = NULL;
 559 int     domainlist_count       = 0;
 560 BOOL    dont_deliver           = FALSE;
 561 BOOL    dot_ends               = TRUE;
 562 BOOL    drop_cr                = FALSE;         /* No longer used */
 563 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 564
 565 BOOL    enable_dollar_recipients = FALSE;
 566 BOOL    envelope_to_remove     = TRUE;
 567 int     errno_quota            = ERRNO_QUOTA;
 568 uschar *errors_copy            = NULL;
 569 int     error_handling         = ERRORS_SENDER;
 570 uschar *errors_reply_to        = NULL;
 571 int     errors_sender_rc       = EXIT_FAILURE;
 572
 573 gid_t   exim_gid               = EXIM_GID;
 574 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 575 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 576                         "\0<---------------Space to patch exim_path->";
 577 uid_t   exim_uid               = EXIM_UID;
 578 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 579 int     expand_forbid          = 0;
 580 int     expand_nlength[EXPAND_MAXN+1];
 581 int     expand_nmax            = -1;
 582 uschar *expand_nstring[EXPAND_MAXN+1];
 583 BOOL    expand_string_forcedfail = FALSE;
 584 uschar *expand_string_message;
 585 BOOL    extract_addresses_remove_arguments = TRUE;
 586 uschar *extra_local_interfaces = NULL;
 587
 588 int     fake_response          = OK;
 589 uschar *fake_response_text     = US"Your message has been rejected but is "
 590                                    "being kept for evaluation.\nIf it was a "
 591                                    "legitimate message, it may still be "
 592                                    "delivered to the target recipient(s).";
 593 int     filter_n[FILTER_VARIABLE_COUNT];
 594 BOOL    filter_running         = FALSE;
 595 int     filter_sn[FILTER_VARIABLE_COUNT];
 596 int     filter_test            = FTEST_NONE;
 597 uschar *filter_test_sfile      = NULL;
 598 uschar *filter_test_ufile      = NULL;
 599 uschar *filter_thisaddress     = NULL;
 600 int     finduser_retries       = 0;
 601 #ifdef WITH_OLD_DEMIME
 602 uschar *found_extension        = NULL;
 603 #endif
 604 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 605 uschar *freeze_tell            = NULL;
 606 uschar *freeze_tell_config     = NULL;
 607 uschar *fudged_queue_times     = US"";
 608
 609 uschar *gecos_name             = NULL;
 610 uschar *gecos_pattern          = NULL;
 611 rewrite_rule  *global_rewrite_rules = NULL;
 612
 613 uschar *headers_charset        = US HEADERS_CHARSET;
 614 int     header_insert_maxlen   = 64 * 1024;
 615 header_line  *header_last      = NULL;
 616 header_line  *header_list      = NULL;
 617 int     header_maxsize         = HEADER_MAXSIZE;
 618 int     header_line_maxsize    = 0;
 619
 620 header_name header_names[] = {
 621   { US"bcc",            3, TRUE,  htype_bcc },
 622   { US"cc",             2, TRUE,  htype_cc },
 623   { US"date",           4, TRUE,  htype_date },
 624   { US"delivery-date", 13, FALSE, htype_delivery_date },
 625   { US"envelope-to",   11, FALSE, htype_envelope_to },
 626   { US"from",           4, TRUE,  htype_from },
 627   { US"message-id",    10, TRUE,  htype_id },
 628   { US"received",       8, FALSE, htype_received },
 629   { US"reply-to",       8, FALSE, htype_reply_to },
 630   { US"return-path",   11, FALSE, htype_return_path },
 631   { US"sender",         6, TRUE,  htype_sender },
 632   { US"subject",        7, FALSE, htype_subject },
 633   { US"to",             2, TRUE,  htype_to }
 634 };
 635
 636 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 637
 638 BOOL    header_rewritten       = FALSE;
 639 uschar *helo_accept_junk_hosts = NULL;
 640 uschar *helo_allow_chars       = US"";
 641 uschar *helo_lookup_domains    = US"@ : @[]";
 642 uschar *helo_try_verify_hosts  = NULL;
 643 BOOL    helo_verified          = FALSE;
 644 BOOL    helo_verify_failed     = FALSE;
 645 uschar *helo_verify_hosts      = NULL;
 646 const uschar *hex_digits       = CUS"0123456789abcdef";
 647 uschar *hold_domains           = NULL;
 648 BOOL    host_checking          = FALSE;
 649 BOOL    host_checking_callout  = FALSE;
 650 uschar *host_data              = NULL;
 651 BOOL    host_find_failed_syntax= FALSE;
 652 uschar *host_lookup            = NULL;
 653 BOOL    host_lookup_deferred   = FALSE;
 654 BOOL    host_lookup_failed     = FALSE;
 655 uschar *host_lookup_order      = US"bydns:byaddr";
 656 uschar *host_lookup_msg        = US"";
 657 int     host_number            = 0;
 658 uschar *host_number_string     = NULL;
 659 uschar *host_reject_connection = NULL;
 660 tree_node *hostlist_anchor     = NULL;
 661 int     hostlist_count         = 0;
 662 uschar *hosts_treat_as_local   = NULL;
 663 uschar *hosts_connection_nolog = NULL;
 664
 665 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 666 BOOL    ignore_fromline_local  = FALSE;
 667 uschar *ignore_fromline_hosts  = NULL;
 668 BOOL    inetd_wait_mode        = FALSE;
 669 int     inetd_wait_timeout     = -1;
 670 uschar *initial_cwd            = NULL;
 671 uschar *interface_address      = NULL;
 672 int     interface_port         = -1;
 673 BOOL    is_inetd               = FALSE;
 674 uschar *iterate_item           = NULL;
 675
 676 int     journal_fd             = -1;
 677
 678 uschar *keep_environment       = NULL;
 679
 680 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 681
 682 uschar *eldap_dn               = NULL;
 683 int     load_average           = -2;
 684 BOOL    local_error_message    = FALSE;
 685 BOOL    local_from_check       = TRUE;
 686 uschar *local_from_prefix      = NULL;
 687 uschar *local_from_suffix      = NULL;
 688
 689 #if HAVE_IPV6
 690 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 691 #else
 692 uschar *local_interfaces       = US"0.0.0.0";
 693 #endif
 694
 695 uschar *local_scan_data        = NULL;
 696 int     local_scan_timeout     = 5*60;
 697 BOOL    local_sender_retain    = FALSE;
 698 gid_t   local_user_gid         = (gid_t)(-1);
 699 uid_t   local_user_uid         = (uid_t)(-1);
 700
 701 tree_node *localpartlist_anchor= NULL;
 702 int     localpartlist_count    = 0;
 703 uschar *log_buffer             = NULL;
 704 unsigned int log_extra_selector = LX_default;
 705 uschar *log_file_path          = US LOG_FILE_PATH
 706                            "\0<--------------Space to patch log_file_path->";
 707
 708 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 709 are the ones that get put into log_write_selector. They can be used in calls to
 710 log_write() to test for the bit. The options with LX_xxx identifiers have
 711 values greater than 0x80000000 and are put into log_extra_selector (without the
 712 top bit). They are never used in calls to log_write(), but are tested
 713 independently. This separation became necessary when the number of log
 714 selectors was getting close to filling a 32-bit word. */
 715
 716 /* Note that this list must be in alphabetical order. */
 717
 718 bit_table log_options[]        = {
 719   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 720   { US"address_rewrite",              L_address_rewrite },
 721   { US"all",                          L_all },
 722   { US"all_parents",                  L_all_parents },
 723   { US"arguments",                    LX_arguments },
 724   { US"connection_reject",            L_connection_reject },
 725   { US"delay_delivery",               L_delay_delivery },
 726   { US"deliver_time",                 LX_deliver_time },
 727   { US"delivery_size",                LX_delivery_size },
 728   { US"dnslist_defer",                L_dnslist_defer },
 729   { US"etrn",                         L_etrn },
 730   { US"host_lookup_failed",           L_host_lookup_failed },
 731   { US"ident_timeout",                LX_ident_timeout },
 732   { US"incoming_interface",           LX_incoming_interface },
 733   { US"incoming_port",                LX_incoming_port },
 734   { US"lost_incoming_connection",     L_lost_incoming_connection },
 735   { US"outgoing_port",                LX_outgoing_port },
 736   { US"pid",                          LX_pid },
 737   { US"queue_run",                    L_queue_run },
 738   { US"queue_time",                   LX_queue_time },
 739   { US"queue_time_overall",           LX_queue_time_overall },
 740   { US"received_recipients",          LX_received_recipients },
 741   { US"received_sender",              LX_received_sender },
 742   { US"rejected_header",              LX_rejected_header },
 743   { US"rejected_headers",             LX_rejected_header },
 744   { US"retry_defer",                  L_retry_defer },
 745   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 746   { US"sender_on_delivery",           LX_sender_on_delivery },
 747   { US"sender_verify_fail",           LX_sender_verify_fail },
 748   { US"size_reject",                  L_size_reject },
 749   { US"skip_delivery",                L_skip_delivery },
 750   { US"smtp_confirmation",            LX_smtp_confirmation },
 751   { US"smtp_connection",              L_smtp_connection },
 752   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 753   { US"smtp_no_mail",                 LX_smtp_no_mail },
 754   { US"smtp_protocol_error",          L_smtp_protocol_error },
 755   { US"smtp_syntax_error",            L_smtp_syntax_error },
 756   { US"subject",                      LX_subject },
 757   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 758   { US"tls_cipher",                   LX_tls_cipher },
 759   { US"tls_peerdn",                   LX_tls_peerdn },
 760   { US"tls_sni",                      LX_tls_sni },
 761   { US"unknown_in_list",              LX_unknown_in_list }
 762 };
 763
 764 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 765 int     log_reject_target      = 0;
 766 uschar *log_selector_string    = NULL;
 767 FILE   *log_stderr             = NULL;
 768 BOOL    log_testing_mode       = FALSE;
 769 BOOL    log_timezone           = FALSE;
 770 unsigned int log_write_selector= L_default;
 771 uschar *login_sender_address   = NULL;
 772 int     lookup_open_max        = 25;
 773 uschar *lookup_value           = NULL;
 774
 775 macro_item  *macros            = NULL;
 776 uschar *mailstore_basename     = NULL;
 777 #ifdef WITH_CONTENT_SCAN
 778 uschar *malware_name           = NULL;  /* Virus Name */
 779 #endif
 780 int     max_received_linelength= 0;
 781 int     max_username_length    = 0;
 782 int     message_age            = 0;
 783 uschar *message_body           = NULL;
 784 uschar *message_body_end       = NULL;
 785 BOOL    message_body_newlines  = FALSE;
 786 int     message_body_size      = 0;
 787 int     message_body_visible   = 500;
 788 int     message_ended          = END_NOTSTARTED;
 789 uschar *message_headers        = NULL;
 790 uschar *message_id;
 791 uschar *message_id_domain      = NULL;
 792 uschar *message_id_text        = NULL;
 793 struct timeval message_id_tv   = { 0, 0 };
 794 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 795 uschar *message_id_external;
 796 int     message_linecount      = 0;
 797 BOOL    message_logs           = TRUE;
 798 int     message_size           = 0;
 799 uschar *message_size_limit     = US"50M";
 800 uschar  message_subdir[2]      = { 0, 0 };
 801 uschar *message_reference      = NULL;
 802
 803 /* MIME ACL expandables */
 804 #ifdef WITH_CONTENT_SCAN
 805 int     mime_anomaly_level     = 0;
 806 const uschar *mime_anomaly_text      = NULL;
 807 uschar *mime_boundary          = NULL;
 808 uschar *mime_charset           = NULL;
 809 uschar *mime_content_description = NULL;
 810 uschar *mime_content_disposition = NULL;
 811 uschar *mime_content_id        = NULL;
 812 unsigned int mime_content_size = 0;
 813 uschar *mime_content_transfer_encoding = NULL;
 814 uschar *mime_content_type      = NULL;
 815 uschar *mime_decoded_filename  = NULL;
 816 uschar *mime_filename          = NULL;
 817 int     mime_is_multipart      = 0;
 818 int     mime_is_coverletter    = 0;
 819 int     mime_is_rfc822         = 0;
 820 int     mime_part_count        = -1;
 821 #endif
 822
 823 BOOL    mua_wrapper            = FALSE;
 824
 825 uid_t  *never_users            = NULL;
 826 #ifdef WITH_CONTENT_SCAN
 827 BOOL    no_mbox_unspool        = FALSE;
 828 #endif
 829 BOOL    no_multiline_responses = FALSE;
 830
 831 uid_t   original_euid;
 832 gid_t   originator_gid;
 833 uschar *originator_login       = NULL;
 834 uschar *originator_name        = NULL;
 835 uid_t   originator_uid;
 836 uschar *override_local_interfaces = NULL;
 837 uschar *override_pid_file_path = NULL;
 838
 839 BOOL    parse_allow_group      = FALSE;
 840 BOOL    parse_found_group      = FALSE;
 841 uschar *percent_hack_domains   = NULL;
 842 uschar *pid_file_path          = US PID_FILE_PATH
 843                            "\0<--------------Space to patch pid_file_path->";
 844 BOOL    pipelining_enable      = TRUE;
 845 uschar *pipelining_advertise_hosts = US"*";
 846 BOOL    preserve_message_logs  = FALSE;
 847 uschar *primary_hostname       = NULL;
 848 BOOL    print_topbitchars      = FALSE;
 849 uschar  process_info[PROCESS_INFO_SIZE];
 850 int     process_info_len       = 0;
 851 uschar *process_log_path       = NULL;
 852 BOOL    prod_requires_admin    = TRUE;
 853 uschar *prvscheck_address      = NULL;
 854 uschar *prvscheck_keynum       = NULL;
 855 uschar *prvscheck_result       = NULL;
 856
 857
 858 uschar *qualify_domain_recipient = NULL;
 859 uschar *qualify_domain_sender  = NULL;
 860 BOOL    queue_2stage           = FALSE;
 861 uschar *queue_domains          = NULL;
 862 int     queue_interval         = -1;
 863 BOOL    queue_list_requires_admin = TRUE;
 864 BOOL    queue_only             = FALSE;
 865 uschar *queue_only_file        = NULL;
 866 int     queue_only_load        = -1;
 867 BOOL    queue_only_load_latch  = TRUE;
 868 BOOL    queue_only_override    = TRUE;
 869 BOOL    queue_only_policy      = FALSE;
 870 BOOL    queue_run_first_delivery = FALSE;
 871 BOOL    queue_run_force        = FALSE;
 872 BOOL    queue_run_in_order     = FALSE;
 873 BOOL    queue_run_local        = FALSE;
 874 int     queue_run_max          = 5;
 875 pid_t   queue_run_pid          = (pid_t)0;
 876 int     queue_run_pipe         = -1;
 877 BOOL    queue_running          = FALSE;
 878 BOOL    queue_smtp             = FALSE;
 879 uschar *queue_smtp_domains     = NULL;
 880
 881 unsigned int random_seed       = 0;
 882 tree_node *ratelimiters_cmd    = NULL;
 883 tree_node *ratelimiters_conn   = NULL;
 884 tree_node *ratelimiters_mail   = NULL;
 885 uschar *raw_active_hostname    = NULL;
 886 uschar *raw_sender             = NULL;
 887 uschar **raw_recipients        = NULL;
 888 int     raw_recipients_count   = 0;
 889
 890 int     rcpt_count             = 0;
 891 int     rcpt_fail_count        = 0;
 892 int     rcpt_defer_count       = 0;
 893 gid_t   real_gid;
 894 uid_t   real_uid;
 895 BOOL    really_exim            = TRUE;
 896 BOOL    receive_call_bombout   = FALSE;
 897 int     receive_linecount      = 0;
 898 int     receive_messagecount   = 0;
 899 int     receive_timeout        = 0;
 900 int     received_count         = 0;
 901 uschar *received_for           = NULL;
 902
 903 /*  This is the default text for Received headers generated by Exim. The
 904 date  will be automatically added on the end. */
 905
 906 uschar *received_header_text   = US
 907      "Received: "
 908      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 909      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 910      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 911      "by $primary_hostname "
 912      "${if def:received_protocol {with $received_protocol}} "
 913      #ifdef SUPPORT_TLS
 914      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 915      #endif
 916      "(Exim $version_number)\n\t"
 917      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 918      "id $message_exim_id"
 919      "${if def:received_for {\n\tfor $received_for}}"
 920      "\0<---------------Space to patch received_header_text->";
 921
 922 int     received_headers_max   = 30;
 923 uschar *received_protocol      = NULL;
 924 int     received_time          = 0;
 925 uschar *recipient_data         = NULL;
 926 uschar *recipient_unqualified_hosts = NULL;
 927 uschar *recipient_verify_failure = NULL;
 928 int     recipients_count       = 0;
 929 BOOL    recipients_discarded   = FALSE;
 930 recipient_item  *recipients_list = NULL;
 931 int     recipients_list_max    = 0;
 932 int     recipients_max         = 0;
 933 BOOL    recipients_max_reject  = FALSE;
 934 const pcre *regex_AUTH         = NULL;
 935 const pcre *regex_check_dns_names = NULL;
 936 const pcre *regex_From         = NULL;
 937 const pcre *regex_IGNOREQUOTA  = NULL;
 938 const pcre *regex_PIPELINING   = NULL;
 939 const pcre *regex_SIZE         = NULL;
 940 const pcre *regex_smtp_code    = NULL;
 941 const pcre *regex_ismsgid      = NULL;
 942 #ifdef WHITELIST_D_MACROS
 943 const pcre *regex_whitelisted_macro = NULL;
 944 #endif
 945 #ifdef WITH_CONTENT_SCAN
 946 uschar *regex_match_string     = NULL;
 947 #endif
 948 int     remote_delivery_count  = 0;
 949 int     remote_max_parallel    = 2;
 950 uschar *remote_sort_domains    = NULL;
 951 int     retry_data_expire      = 7*24*60*60;
 952 int     retry_interval_max     = 24*60*60;
 953 int     retry_maximum_timeout  = 0;        /* set from retry config */
 954 retry_config  *retries         = NULL;
 955 uschar *return_path            = NULL;
 956 BOOL    return_path_remove     = TRUE;
 957 int     rewrite_existflags     = 0;
 958 uschar *rfc1413_hosts          = US"*";
 959 int     rfc1413_query_timeout  = 5;
 960 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 961 uid_t   root_gid               = ROOT_GID;
 962 uid_t   root_uid               = ROOT_UID;
 963
 964 router_instance  *routers  = NULL;
 965 router_instance  router_defaults = {
 966     NULL,                      /* chain pointer */
 967     NULL,                      /* name */
 968     NULL,                      /* info */
 969     NULL,                      /* private options block pointer */
 970     NULL,                      /* driver name */
 971
 972     NULL,                      /* address_data */
 973 #ifdef EXPERIMENTAL_BRIGHTMAIL
 974     NULL,                      /* bmi_rule */
 975 #endif
 976     NULL,                      /* cannot_route_message */
 977     NULL,                      /* condition */
 978     NULL,                      /* current_directory */
 979     NULL,                      /* debug_string */
 980     NULL,                      /* domains */
 981     NULL,                      /* errors_to */
 982     NULL,                      /* expand_gid */
 983     NULL,                      /* expand_uid */
 984     NULL,                      /* expand_more */
 985     NULL,                      /* expand_unseen */
 986     NULL,                      /* extra_headers */
 987     NULL,                      /* fallback_hosts */
 988     NULL,                      /* home_directory */
 989     NULL,                      /* ignore_target_hosts */
 990     NULL,                      /* local_parts */
 991     NULL,                      /* pass_router_name */
 992     NULL,                      /* prefix */
 993     NULL,                      /* redirect_router_name */
 994     NULL,                      /* remove_headers */
 995     NULL,                      /* require_files */
 996     NULL,                      /* router_home_directory */
 997     US"freeze",                /* self */
 998     NULL,                      /* senders */
 999     NULL,                      /* suffix */
1000     NULL,                      /* translate_ip_address */
1001     NULL,                      /* transport_name */
1002
1003     TRUE,                      /* address_test */
1004 #ifdef EXPERIMENTAL_BRIGHTMAIL
1005     FALSE,                     /* bmi_deliver_alternate */
1006     FALSE,                     /* bmi_deliver_default */
1007     FALSE,                     /* bmi_dont_deliver */
1008 #endif
1009     TRUE,                      /* expn */
1010     FALSE,                     /* caseful_local_part */
1011     FALSE,                     /* check_local_user */
1012     FALSE,                     /* disable_logging */
1013     FALSE,                     /* fail_verify_recipient */
1014     FALSE,                     /* fail_verify_sender */
1015     FALSE,                     /* gid_set */
1016     FALSE,                     /* initgroups */
1017     TRUE_UNSET,                /* log_as_local */
1018     TRUE,                      /* more */
1019     FALSE,                     /* pass_on_timeout */
1020     FALSE,                     /* prefix_optional */
1021     TRUE,                      /* repeat_use */
1022     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1023     FALSE,                     /* same_domain_copy_routing */
1024     FALSE,                     /* self_rewrite */
1025     FALSE,                     /* suffix_optional */
1026     FALSE,                     /* verify_only */
1027     TRUE,                      /* verify_recipient */
1028     TRUE,                      /* verify_sender */
1029     FALSE,                     /* uid_set */
1030     FALSE,                     /* unseen */
1031
1032     self_freeze,               /* self_code */
1033     (uid_t)(-1),               /* uid */
1034     (gid_t)(-1),               /* gid */
1035
1036     NULL,                      /* fallback_hostlist */
1037     NULL,                      /* transport instance */
1038     NULL,                      /* pass_router */
1039     NULL                       /* redirect_router */
1040 };
1041
1042 ip_address_item *running_interfaces = NULL;
1043 BOOL    running_in_test_harness = FALSE;
1044
1045 /* This is a weird one. The following string gets patched in the binary by the
1046 script that sets up a copy of Exim for running in the test harness. It seems
1047 that compilers are now clever, and share constant strings if they can.
1048 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1049 make use of the end of this string in order to save space. So the patching then
1050 wrecks this. We defeat this optimization by adding some additional characters
1051 onto the end of the string. */
1052
1053 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1054
1055 int     runrc                  = 0;
1056
1057 uschar *search_error_message   = NULL;
1058 BOOL    search_find_defer      = FALSE;
1059 uschar *self_hostname          = NULL;
1060 uschar *sender_address         = NULL;
1061 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1062 uschar *sender_address_data    = NULL;
1063 BOOL    sender_address_forced  = FALSE;
1064 uschar *sender_address_unrewritten = NULL;
1065 uschar *sender_data            = NULL;
1066 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1067 uschar *sender_fullhost        = NULL;
1068 uschar *sender_helo_name       = NULL;
1069 uschar **sender_host_aliases   = &no_aliases;
1070 uschar *sender_host_address    = NULL;
1071 uschar *sender_host_authenticated = NULL;
1072 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1073 uschar *sender_host_name       = NULL;
1074 int     sender_host_port       = 0;
1075 BOOL    sender_host_notsocket  = FALSE;
1076 BOOL    sender_host_unknown    = FALSE;
1077 uschar *sender_ident           = NULL;
1078 BOOL    sender_local           = FALSE;
1079 BOOL    sender_name_forced     = FALSE;
1080 uschar *sender_rate            = NULL;
1081 uschar *sender_rate_limit      = NULL;
1082 uschar *sender_rate_period     = NULL;
1083 uschar *sender_rcvhost         = NULL;
1084 BOOL    sender_set_untrusted   = FALSE;
1085 uschar *sender_unqualified_hosts = NULL;
1086 uschar *sender_verify_failure = NULL;
1087 address_item *sender_verified_list  = NULL;
1088 address_item *sender_verified_failed = NULL;
1089 int     sender_verified_rc     = -1;
1090 BOOL    sender_verified_responded = FALSE;
1091 uschar *sending_ip_address     = NULL;
1092 int     sending_port           = -1;
1093 SIGNAL_BOOL sigalrm_seen       = FALSE;
1094 uschar **sighup_argv           = NULL;
1095 int     smtp_accept_count      = 0;
1096 BOOL    smtp_accept_keepalive  = TRUE;
1097 int     smtp_accept_max        = 20;
1098 int     smtp_accept_max_nonmail= 10;
1099 uschar *smtp_accept_max_nonmail_hosts = US"*";
1100 int     smtp_accept_max_per_connection = 1000;
1101 uschar *smtp_accept_max_per_host = NULL;
1102 int     smtp_accept_queue      = 0;
1103 int     smtp_accept_queue_per_connection = 10;
1104 int     smtp_accept_reserve    = 0;
1105 uschar *smtp_active_hostname   = NULL;
1106 BOOL    smtp_authenticated     = FALSE;
1107 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1108                              "Exim $version_number $tod_full"
1109                              "\0<---------------Space to patch smtp_banner->";
1110 BOOL    smtp_batched_input     = FALSE;
1111 BOOL    smtp_check_spool_space = TRUE;
1112 int     smtp_ch_index          = 0;
1113 uschar *smtp_cmd_argument      = NULL;
1114 uschar *smtp_cmd_buffer        = NULL;
1115 time_t  smtp_connection_start  = 0;
1116 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1117 int     smtp_connect_backlog   = 20;
1118 double  smtp_delay_mail        = 0.0;
1119 double  smtp_delay_rcpt        = 0.0;
1120 BOOL    smtp_enforce_sync      = TRUE;
1121 FILE   *smtp_in                = NULL;
1122 BOOL    smtp_input             = FALSE;
1123 int     smtp_load_reserve      = -1;
1124 int     smtp_mailcmd_count     = 0;
1125 FILE   *smtp_out               = NULL;
1126 uschar *smtp_etrn_command      = NULL;
1127 BOOL    smtp_etrn_serialize    = TRUE;
1128 int     smtp_max_synprot_errors= 3;
1129 int     smtp_max_unknown_commands = 3;
1130 uschar *smtp_notquit_reason    = NULL;
1131 uschar *smtp_ratelimit_hosts   = NULL;
1132 uschar *smtp_ratelimit_mail    = NULL;
1133 uschar *smtp_ratelimit_rcpt    = NULL;
1134 uschar *smtp_read_error        = US"";
1135 int     smtp_receive_timeout   = 5*60;
1136 uschar *smtp_reserve_hosts     = NULL;
1137 BOOL    smtp_return_error_details = FALSE;
1138 int     smtp_rlm_base          = 0;
1139 double  smtp_rlm_factor        = 0.0;
1140 int     smtp_rlm_limit         = 0;
1141 int     smtp_rlm_threshold     = INT_MAX;
1142 int     smtp_rlr_base          = 0;
1143 double  smtp_rlr_factor        = 0.0;
1144 int     smtp_rlr_limit         = 0;
1145 int     smtp_rlr_threshold     = INT_MAX;
1146 BOOL    smtp_use_pipelining    = FALSE;
1147 BOOL    smtp_use_size          = FALSE;
1148
1149 #ifdef WITH_CONTENT_SCAN
1150 uschar *spamd_address          = US"127.0.0.1 783";
1151 uschar *spam_bar               = NULL;
1152 uschar *spam_report            = NULL;
1153 uschar *spam_score             = NULL;
1154 uschar *spam_score_int         = NULL;
1155 #endif
1156 #ifdef EXPERIMENTAL_SPF
1157 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1158 uschar *spf_header_comment     = NULL;
1159 uschar *spf_received           = NULL;
1160 uschar *spf_result             = NULL;
1161 uschar *spf_smtp_comment       = NULL;
1162 #endif
1163
1164 BOOL    split_spool_directory  = FALSE;
1165 uschar *spool_directory        = US SPOOL_DIRECTORY
1166                            "\0<--------------Space to patch spool_directory->";
1167 #ifdef EXPERIMENTAL_SRS
1168 uschar *srs_config             = NULL;
1169 uschar *srs_db_address         = NULL;
1170 uschar *srs_db_key             = NULL;
1171 int     srs_hashlength         = 6;
1172 int     srs_hashmin            = -1;
1173 int     srs_maxage             = 31;
1174 uschar *srs_orig_recipient     = NULL;
1175 uschar *srs_orig_sender        = NULL;
1176 uschar *srs_recipient          = NULL;
1177 uschar *srs_secrets            = NULL;
1178 uschar *srs_status             = NULL;
1179 BOOL    srs_usehash            = TRUE;
1180 BOOL    srs_usetimestamp       = TRUE;
1181 #endif
1182 BOOL    strict_acl_vars        = FALSE;
1183 int     string_datestamp_offset= -1;
1184 int     string_datestamp_length= 0;
1185 int     string_datestamp_type  = -1;
1186 BOOL    strip_excess_angle_brackets = FALSE;
1187 BOOL    strip_trailing_dot     = FALSE;
1188 uschar *submission_domain      = NULL;
1189 BOOL    submission_mode        = FALSE;
1190 uschar *submission_name        = NULL;
1191 BOOL    suppress_local_fixups  = FALSE;
1192 BOOL    synchronous_delivery   = FALSE;
1193 BOOL    syslog_duplication     = TRUE;
1194 int     syslog_facility        = LOG_MAIL;
1195 uschar *syslog_processname     = US"exim";
1196 BOOL    syslog_timestamp       = TRUE;
1197 uschar *system_filter          = NULL;
1198
1199 uschar *system_filter_directory_transport = NULL;
1200 uschar *system_filter_file_transport = NULL;
1201 uschar *system_filter_pipe_transport = NULL;
1202 uschar *system_filter_reply_transport = NULL;
1203
1204 gid_t   system_filter_gid      = 0;
1205 BOOL    system_filter_gid_set  = FALSE;
1206 uid_t   system_filter_uid      = (uid_t)-1;
1207 BOOL    system_filter_uid_set  = FALSE;
1208 BOOL    system_filtering       = FALSE;
1209
1210 BOOL    tcp_nodelay            = TRUE;
1211 #ifdef USE_TCP_WRAPPERS
1212 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1213 #endif
1214 int     test_harness_load_avg  = 0;
1215 int     thismessage_size_limit = 0;
1216 int     timeout_frozen_after   = 0;
1217 BOOL    timestamps_utc         = FALSE;
1218
1219 transport_instance  *transports = NULL;
1220
1221 transport_instance  transport_defaults = {
1222     NULL,                     /* chain pointer */
1223     NULL,                     /* name */
1224     NULL,                     /* info */
1225     NULL,                     /* private options block pointer */
1226     NULL,                     /* driver name */
1227     NULL,                     /* setup entry point */
1228     1,                        /* batch_max */
1229     NULL,                     /* batch_id */
1230     NULL,                     /* home_dir */
1231     NULL,                     /* current_dir */
1232     TRUE,                     /* multi-domain */
1233     FALSE,                    /* overrides_hosts */
1234     100,                      /* max_addresses */
1235     500,                      /* connection_max_messages */
1236     FALSE,                    /* deliver_as_creator */
1237     FALSE,                    /* disable_logging */
1238     FALSE,                    /* initgroups */
1239     FALSE,                    /* uid_set */
1240     FALSE,                    /* gid_set */
1241     (uid_t)(-1),              /* uid */
1242     (gid_t)(-1),              /* gid */
1243     NULL,                     /* expand_uid */
1244     NULL,                     /* expand_gid */
1245     NULL,                     /* warn_message */
1246     NULL,                     /* shadow */
1247     NULL,                     /* shadow_condition */
1248     NULL,                     /* filter_command */
1249     NULL,                     /* add_headers */
1250     NULL,                     /* remove_headers */
1251     NULL,                     /* return_path */
1252     NULL,                     /* debug_string */
1253     NULL,                     /* message_size_limit */
1254     NULL,                     /* headers_rewrite */
1255     NULL,                     /* rewrite_rules */
1256     0,                        /* rewrite_existflags */
1257     300,                      /* filter_timeout */
1258     FALSE,                    /* body_only */
1259     FALSE,                    /* delivery_date_add */
1260     FALSE,                    /* envelope_to_add */
1261     FALSE,                    /* headers_only */
1262     FALSE,                    /* rcpt_include_affixes */
1263     FALSE,                    /* return_path_add */
1264     FALSE,                    /* return_output */
1265     FALSE,                    /* return_fail_output */
1266     FALSE,                    /* log_output */
1267     FALSE,                    /* log_fail_output */
1268     FALSE,                    /* log_defer_output */
1269     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1270                                  1 nor 0 so can detect unset */
1271 };
1272
1273 int     transport_count;
1274 int     transport_newlines;
1275 uschar **transport_filter_argv  = NULL;
1276 int     transport_filter_timeout;
1277 BOOL    transport_filter_timed_out = FALSE;
1278 int     transport_write_timeout= 0;
1279
1280 tree_node  *tree_dns_fails     = NULL;
1281 tree_node  *tree_duplicates    = NULL;
1282 tree_node  *tree_nonrecipients = NULL;
1283 tree_node  *tree_unusable      = NULL;
1284
1285 BOOL    trusted_caller         = FALSE;
1286 BOOL    trusted_config         = TRUE;
1287 gid_t  *trusted_groups         = NULL;
1288 uid_t  *trusted_users          = NULL;
1289 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1290
1291 uschar *unknown_login          = NULL;
1292 uschar *unknown_username       = NULL;
1293 uschar *untrusted_set_sender   = NULL;
1294
1295 /*  A regex for matching a "From_" line in an incoming message, in the form
1296
1297     From ph10 Fri Jan  5 12:35 GMT 1996
1298
1299 which  the "mail" commands send to the MTA (undocumented, of course), or in
1300 the  form
1301
1302     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1303
1304 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1305 Because  of variations in time formats, just match up to the minutes. That
1306 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1307 so  just require one digit for hours and minutes. The weekday is also absent
1308 in  some forms. */
1309
1310 uschar *uucp_from_pattern      = US
1311    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1312    "(?:"                                          /* Non-extracting bracket */
1313    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1314    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1315    ")"                                            /* End alternation */
1316    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1317
1318 uschar *uucp_from_sender       = US"$1";
1319
1320 uschar *warn_message_file      = NULL;
1321 uschar *warnmsg_delay          = NULL;
1322 uschar *warnmsg_recipients     = NULL;
1323 BOOL    write_rejectlog        = TRUE;
1324
1325 uschar *version_copyright      =
1326  US"Copyright (c) University of Cambridge, 1995 - 2012\n"
1327    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2012";
1328 uschar *version_date           = US"?";
1329 uschar *version_cnumber        = US"????";
1330 uschar *version_string         = US"?";
1331
1332 int     warning_count          = 0;
1333
1334 /*  End of globals.c */