src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.81.2.4 2009/05/20 14:30:14 tom 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   { "client_condition", opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, client_condition)) },
  37   { "driver",        opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, driver_name)) },
  39   { "public_name",   opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, public_name)) },
  41   { "server_advertise_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, advertise_condition))},
  43   { "server_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_condition)) },
  45   { "server_debug_print", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, server_debug_string)) },
  47   { "server_mail_auth_condition", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  49   { "server_set_id", opt_stringptr | opt_public,
  50                  (void *)(offsetof(auth_instance, set_id)) }
  51 };
  52
  53 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  54
  55 /* An empty host aliases list. */
  56
  57 uschar *no_aliases             = NULL;
  58
  59
  60 /* For comments on these variables, see globals.h. I'm too idle to
  61 duplicate them here... */
  62
  63 #ifdef EXIM_PERL
  64 uschar *opt_perl_startup       = NULL;
  65 BOOL    opt_perl_at_start      = FALSE;
  66 BOOL    opt_perl_started       = FALSE;
  67 #endif
  68
  69 #ifdef EXPAND_DLFUNC
  70 tree_node *dlobj_anchor        = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_IBASE
  74 uschar *ibase_servers          = NULL;
  75 #endif
  76
  77 #ifdef LOOKUP_LDAP
  78 uschar *eldap_default_servers  = NULL;
  79 int     eldap_version          = -1;
  80 #endif
  81
  82 #ifdef LOOKUP_MYSQL
  83 uschar *mysql_servers          = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_ORACLE
  87 uschar *oracle_servers         = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_PGSQL
  91 uschar *pgsql_servers          = NULL;
  92 #endif
  93
  94 #ifdef LOOKUP_SQLITE
  95 int     sqlite_lock_timeout    = 5;
  96 #endif
  97
  98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  99 BOOL    move_frozen_messages   = FALSE;
 100 #endif
 101
 102 /* These variables are outside the #ifdef because it keeps the code less
 103 cluttered in several places (e.g. during logging) if we can always refer to
 104 them. Also, the tls_ variables are now always visible. */
 105
 106 BOOL    tls_active             = -1;
 107 BOOL    tls_certificate_verified = FALSE;
 108 uschar *tls_cipher             = NULL;
 109 BOOL    tls_on_connect         = FALSE;
 110 uschar *tls_on_connect_ports   = NULL;
 111 uschar *tls_peerdn             = NULL;
 112
 113 #ifdef SUPPORT_TLS
 114 uschar *gnutls_require_mac     = NULL;
 115 uschar *gnutls_require_kx      = NULL;
 116 uschar *gnutls_require_proto   = NULL;
 117 const pcre *regex_STARTTLS     = NULL;
 118 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 119 uschar *tls_certificate        = NULL;
 120 uschar *tls_crl                = NULL;
 121 uschar *tls_dhparam            = NULL;
 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_try_verify_hosts   = NULL;
 127 uschar *tls_verify_certificates= NULL;
 128 uschar *tls_verify_hosts       = NULL;
 129 #endif
 130
 131
 132 /* Input-reading functions for messages, so we can use special ones for
 133 incoming TCP/IP. The defaults use stdin. We never need these for any
 134 stand-alone tests. */
 135
 136 #ifndef STAND_ALONE
 137 int (*receive_getc)(void)      = stdin_getc;
 138 int (*receive_ungetc)(int)     = stdin_ungetc;
 139 int (*receive_feof)(void)      = stdin_feof;
 140 int (*receive_ferror)(void)    = stdin_ferror;
 141 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 142 #endif
 143
 144
 145 /* List of per-address expansion variables for clearing and saving/restoring
 146 when verifying one address while routing/verifying another. We have to have
 147 the size explicit, because it is referenced from more than one module. */
 148
 149 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 150   &deliver_address_data,
 151   &deliver_domain,
 152   &deliver_domain_data,
 153   &deliver_domain_orig,
 154   &deliver_domain_parent,
 155   &deliver_localpart,
 156   &deliver_localpart_data,
 157   &deliver_localpart_orig,
 158   &deliver_localpart_parent,
 159   &deliver_localpart_prefix,
 160   &deliver_localpart_suffix,
 161   (uschar **)(&deliver_recipients),
 162   &deliver_host,
 163   &deliver_home,
 164   &address_file,
 165   &address_pipe,
 166   &self_hostname,
 167   NULL };
 168
 169 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 170
 171 /* General global variables */
 172
 173 header_line *acl_added_headers = NULL;
 174 tree_node *acl_anchor          = NULL;
 175
 176 uschar *acl_not_smtp           = NULL;
 177 #ifdef WITH_CONTENT_SCAN
 178 uschar *acl_not_smtp_mime      = NULL;
 179 #endif
 180 uschar *acl_not_smtp_start     = NULL;
 181
 182 uschar *acl_smtp_auth          = NULL;
 183 uschar *acl_smtp_connect       = NULL;
 184 uschar *acl_smtp_data          = NULL;
 185 uschar *acl_smtp_etrn          = NULL;
 186 uschar *acl_smtp_expn          = NULL;
 187 uschar *acl_smtp_helo          = NULL;
 188 uschar *acl_smtp_mail          = NULL;
 189 uschar *acl_smtp_mailauth      = NULL;
 190 #ifdef WITH_CONTENT_SCAN
 191 uschar *acl_smtp_mime          = NULL;
 192 #endif
 193 uschar *acl_smtp_notquit       = NULL;
 194 uschar *acl_smtp_predata       = NULL;
 195 uschar *acl_smtp_quit          = NULL;
 196 uschar *acl_smtp_rcpt          = NULL;
 197 uschar *acl_smtp_starttls      = NULL;
 198 uschar *acl_smtp_vrfy          = NULL;
 199
 200 BOOL    acl_temp_details       = FALSE;
 201 tree_node *acl_var_c           = NULL;
 202 tree_node *acl_var_m           = NULL;
 203 uschar *acl_verify_message     = NULL;
 204 string_item *acl_warn_logged   = NULL;
 205
 206 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 207 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 208
 209 uschar *acl_wherenames[]       = { US"RCPT",
 210                                    US"MAIL",
 211                                    US"PREDATA",
 212                                    US"MIME",
 213                                    US"DATA",
 214                                    US"non-SMTP",
 215                                    US"AUTH",
 216                                    US"connection",
 217                                    US"ETRN",
 218                                    US"EXPN",
 219                                    US"EHLO or HELO",
 220                                    US"MAILAUTH",
 221                                    US"non-SMTP-start",
 222                                    US"NOTQUIT",
 223                                    US"QUIT",
 224                                    US"STARTTLS",
 225                                    US"VRFY"
 226                                  };
 227
 228 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 229                                    US"550",     /* MAIL */
 230                                    US"550",     /* PREDATA */
 231                                    US"550",     /* MIME */
 232                                    US"550",     /* DATA */
 233                                    US"0",       /* not SMTP; not relevant */
 234                                    US"503",     /* AUTH */
 235                                    US"550",     /* connect */
 236                                    US"458",     /* ETRN */
 237                                    US"550",     /* EXPN */
 238                                    US"550",     /* HELO/EHLO */
 239                                    US"0",       /* MAILAUTH; not relevant */
 240                                    US"0",       /* not SMTP; not relevant */
 241                                    US"0",       /* NOTQUIT; not relevant */
 242                                    US"0",       /* QUIT; not relevant */
 243                                    US"550",     /* STARTTLS */
 244                                    US"252"      /* VRFY */
 245                                  };
 246
 247 BOOL    active_local_from_check = FALSE;
 248 BOOL    active_local_sender_retain = FALSE;
 249 BOOL    accept_8bitmime        = FALSE;
 250 address_item  *addr_duplicate  = NULL;
 251
 252 address_item address_defaults = {
 253   NULL,                 /* next */
 254   NULL,                 /* parent */
 255   NULL,                 /* first */
 256   NULL,                 /* dupof */
 257   NULL,                 /* start_router */
 258   NULL,                 /* router */
 259   NULL,                 /* transport */
 260   NULL,                 /* host_list */
 261   NULL,                 /* host_used */
 262   NULL,                 /* fallback_hosts */
 263   NULL,                 /* reply */
 264   NULL,                 /* retries */
 265   NULL,                 /* address */
 266   NULL,                 /* unique */
 267   NULL,                 /* cc_local_part */
 268   NULL,                 /* lc_local_part */
 269   NULL,                 /* local_part */
 270   NULL,                 /* prefix */
 271   NULL,                 /* suffix */
 272   NULL,                 /* domain */
 273   NULL,                 /* address_retry_key */
 274   NULL,                 /* domain_retry_key */
 275   NULL,                 /* current_dir */
 276   NULL,                 /* home_dir */
 277   NULL,                 /* message */
 278   NULL,                 /* user_message */
 279   NULL,                 /* onetime_parent */
 280   NULL,                 /* pipe_expandn */
 281   NULL,                 /* return_filename */
 282   NULL,                 /* self_hostname */
 283   NULL,                 /* shadow_message */
 284   #ifdef SUPPORT_TLS
 285   NULL,                 /* cipher */
 286   NULL,                 /* peerdn */
 287   #endif
 288   (uid_t)(-1),          /* uid */
 289   (gid_t)(-1),          /* gid */
 290   0,                    /* flags */
 291   { 0 },                /* domain_cache - any larger array should be zeroed */
 292   { 0 },                /* localpart_cache - ditto */
 293   -1,                   /* mode */
 294   0,                    /* more_errno */
 295   ERRNO_UNKNOWNERROR,   /* basic_errno */
 296   0,                    /* child_count */
 297   -1,                   /* return_file */
 298   SPECIAL_NONE,         /* special_action */
 299   DEFER,                /* transport_return */
 300   {                     /* fields that are propagated to children */
 301     NULL,               /* address_data */
 302     NULL,               /* domain_data */
 303     NULL,               /* localpart_data */
 304     NULL,               /* errors_address */
 305     NULL,               /* extra_headers */
 306     NULL,               /* remove_headers */
 307 #ifdef EXPERIMENTAL_SRS
 308     NULL,               /* srs_sender */
 309 #endif
 310   }
 311 };
 312
 313 uschar *address_file           = NULL;
 314 uschar *address_pipe           = NULL;
 315 BOOL    address_test_mode      = FALSE;
 316 tree_node *addresslist_anchor  = NULL;
 317 int     addresslist_count      = 0;
 318 gid_t  *admin_groups           = NULL;
 319 BOOL    admin_user             = FALSE;
 320 BOOL    allow_auth_unadvertised= FALSE;
 321 BOOL    allow_domain_literals  = FALSE;
 322 BOOL    allow_mx_to_ip         = FALSE;
 323 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 324 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 325 BOOL    allow_utf8_domains     = FALSE;
 326 uschar *authenticated_id       = NULL;
 327 uschar *authenticated_sender   = NULL;
 328 BOOL    authentication_failed  = FALSE;
 329 auth_instance  *auths          = NULL;
 330 uschar *auth_advertise_hosts   = US"*";
 331 auth_instance auth_defaults    = {
 332     NULL,                      /* chain pointer */
 333     NULL,                      /* name */
 334     NULL,                      /* info */
 335     NULL,                      /* private options block pointer */
 336     NULL,                      /* driver_name */
 337     NULL,                      /* advertise_condition */
 338     NULL,                      /* client_condition */
 339     NULL,                      /* public_name */
 340     NULL,                      /* set_id */
 341     NULL,                      /* server_mail_auth_condition */
 342     NULL,                      /* server_debug_string */
 343     NULL,                      /* server_condition */
 344     FALSE,                     /* client */
 345     FALSE,                     /* server */
 346     FALSE                      /* advertised */
 347 };
 348
 349 uschar *auth_defer_msg         = US"reason not recorded";
 350 uschar *auth_defer_user_msg    = US"";
 351 uschar *auth_vars[AUTH_VARS];
 352 int     auto_thaw              = 0;
 353 #ifdef WITH_CONTENT_SCAN
 354 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 355 #endif
 356
 357 BOOL    background_daemon      = TRUE;
 358
 359 #if BASE_62 == 62
 360 uschar *base62_chars=
 361     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 362 #else
 363 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 364 #endif
 365
 366 uschar *bi_command             = NULL;
 367 uschar *big_buffer             = NULL;
 368 int     big_buffer_size        = BIG_BUFFER_SIZE;
 369 #ifdef EXPERIMENTAL_BRIGHTMAIL
 370 uschar *bmi_alt_location       = NULL;
 371 uschar *bmi_base64_tracker_verdict = NULL;
 372 uschar *bmi_base64_verdict     = NULL;
 373 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 374 int     bmi_deliver            = 1;
 375 int     bmi_run                = 0;
 376 uschar *bmi_verdicts           = NULL;
 377 #endif
 378 int     body_linecount         = 0;
 379 int     body_zerocount         = 0;
 380 uschar *bounce_message_file    = NULL;
 381 uschar *bounce_message_text    = NULL;
 382 uschar *bounce_recipient       = NULL;
 383 BOOL    bounce_return_body     = TRUE;
 384 BOOL    bounce_return_message  = TRUE;
 385 int     bounce_return_size_limit = 100*1024;
 386 uschar *bounce_sender_authentication = NULL;
 387 int     bsmtp_transaction_linecount = 0;
 388
 389 int     callout_cache_domain_positive_expire = 7*24*60*60;
 390 int     callout_cache_domain_negative_expire = 3*60*60;
 391 int     callout_cache_positive_expire = 24*60*60;
 392 int     callout_cache_negative_expire = 2*60*60;
 393 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 394 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 395 int     check_log_inodes       = 0;
 396 int     check_log_space        = 0;
 397 BOOL    check_rfc2047_length   = TRUE;
 398 int     check_spool_inodes     = 0;
 399 int     check_spool_space      = 0;
 400 int     clmacro_count          = 0;
 401 uschar *clmacros[MAX_CLMACROS];
 402 BOOL    config_changed         = FALSE;
 403 FILE   *config_file            = NULL;
 404 uschar *config_filename        = NULL;
 405 int     config_lineno          = 0;
 406 #ifdef CONFIGURE_GROUP
 407 gid_t   config_gid             = CONFIGURE_GROUP;
 408 #endif
 409 uschar *config_main_filelist   = US CONFIGURE_FILE
 410                          "\0<-----------Space to patch configure_filename->";
 411 uschar *config_main_filename   = NULL;
 412
 413 #ifdef CONFIGURE_OWNER
 414 uid_t   config_uid             = CONFIGURE_OWNER;
 415 #endif
 416
 417 int     connection_max_messages= -1;
 418 uschar *continue_hostname      = NULL;
 419 uschar *continue_host_address  = NULL;
 420 BOOL    continue_more          = FALSE;
 421 int     continue_sequence      = 1;
 422 uschar *continue_transport     = NULL;
 423
 424 uschar *csa_status             = NULL;
 425
 426 BOOL    daemon_listen          = FALSE;
 427 uschar *daemon_smtp_port       = US"smtp";
 428 int     daemon_startup_retries = 9;
 429 int     daemon_startup_sleep   = 30;
 430
 431 #ifdef EXPERIMENTAL_DCC
 432 BOOL    dcc_direct_add_header  = FALSE;
 433 uschar *dcc_header             = NULL;
 434 uschar *dcc_result             = NULL;
 435 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 436 uschar *dccifd_options         = US"header";
 437 #endif
 438
 439 BOOL    debug_daemon           = FALSE;
 440 int     debug_fd               = -1;
 441 FILE   *debug_file             = NULL;
 442 bit_table debug_options[]      = {
 443   { US"acl",            D_acl },
 444   { US"all",            D_all },
 445   { US"auth",           D_auth },
 446   { US"deliver",        D_deliver },
 447   { US"dns",            D_dns },
 448   { US"dnsbl",          D_dnsbl },
 449   { US"exec",           D_exec },
 450   { US"expand",         D_expand },
 451   { US"filter",         D_filter },
 452   { US"hints_lookup",   D_hints_lookup },
 453   { US"host_lookup",    D_host_lookup },
 454   { US"ident",          D_ident },
 455   { US"interface",      D_interface },
 456   { US"lists",          D_lists },
 457   { US"load",           D_load },
 458   { US"local_scan",     D_local_scan },
 459   { US"lookup",         D_lookup },
 460   { US"memory",         D_memory },
 461   { US"pid",            D_pid },
 462   { US"process_info",   D_process_info },
 463   { US"queue_run",      D_queue_run },
 464   { US"receive",        D_receive },
 465   { US"resolver",       D_resolver },
 466   { US"retry",          D_retry },
 467   { US"rewrite",        D_rewrite },
 468   { US"route",          D_route },
 469   { US"timestamp",      D_timestamp },
 470   { US"tls",            D_tls },
 471   { US"transport",      D_transport },
 472   { US"uid",            D_uid },
 473   { US"verify",         D_verify }
 474 };
 475 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 476 unsigned int debug_selector    = 0;
 477 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 478 uschar *delay_warning_condition=
 479   US"${if or {"
 480             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 481             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 482             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 483             "} {no}{yes}}";
 484 BOOL    delivery_date_remove   = TRUE;
 485 uschar *deliver_address_data   = NULL;
 486 int     deliver_datafile       = -1;
 487 uschar *deliver_domain         = NULL;
 488 uschar *deliver_domain_data    = NULL;
 489 uschar *deliver_domain_orig    = NULL;
 490 uschar *deliver_domain_parent  = NULL;
 491 BOOL    deliver_drop_privilege = FALSE;
 492 BOOL    deliver_firsttime      = FALSE;
 493 BOOL    deliver_force          = FALSE;
 494 BOOL    deliver_freeze         = FALSE;
 495 int     deliver_frozen_at      = 0;
 496 uschar *deliver_home           = NULL;
 497 uschar *deliver_host           = NULL;
 498 uschar *deliver_host_address   = NULL;
 499 uschar *deliver_in_buffer      = NULL;
 500 ino_t   deliver_inode          = 0;
 501 uschar *deliver_localpart      = NULL;
 502 uschar *deliver_localpart_data = NULL;
 503 uschar *deliver_localpart_orig = NULL;
 504 uschar *deliver_localpart_parent = NULL;
 505 uschar *deliver_localpart_prefix = NULL;
 506 uschar *deliver_localpart_suffix = NULL;
 507 BOOL    deliver_force_thaw     = FALSE;
 508 BOOL    deliver_manual_thaw    = FALSE;
 509 uschar *deliver_out_buffer     = NULL;
 510 int     deliver_queue_load_max = -1;
 511 address_item  *deliver_recipients = NULL;
 512 uschar *deliver_selectstring   = NULL;
 513 BOOL    deliver_selectstring_regex = FALSE;
 514 uschar *deliver_selectstring_sender = NULL;
 515 BOOL    deliver_selectstring_sender_regex = FALSE;
 516 #ifdef WITH_OLD_DEMIME
 517 int     demime_errorlevel      = 0;
 518 int     demime_ok              = 0;
 519 uschar *demime_reason          = NULL;
 520 #endif
 521 BOOL    disable_callout_flush  = FALSE;
 522 BOOL    disable_delay_flush    = FALSE;
 523 #ifdef ENABLE_DISABLE_FSYNC
 524 BOOL    disable_fsync          = FALSE;
 525 #endif
 526 BOOL    disable_ipv6           = FALSE;
 527 BOOL    disable_logging        = FALSE;
 528
 529 #ifndef DISABLE_DKIM
 530 uschar *dkim_signing_domain      = NULL;
 531 uschar *dkim_signing_selector    = NULL;
 532 uschar *dkim_verify_domains      = US"@dkim_signed";
 533 BOOL    dkim_collect_input       = FALSE;
 534 BOOL    dkim_disable_verify      = FALSE;
 535 #endif
 536
 537 uschar *dns_again_means_nonexist = NULL;
 538 int     dns_csa_search_limit   = 5;
 539 BOOL    dns_csa_use_reverse    = TRUE;
 540 uschar *dns_ipv4_lookup        = NULL;
 541 int     dns_retrans            = 0;
 542 int     dns_retry              = 0;
 543 uschar *dnslist_domain         = NULL;
 544 uschar *dnslist_matched        = NULL;
 545 uschar *dnslist_text           = NULL;
 546 uschar *dnslist_value          = NULL;
 547 tree_node *domainlist_anchor   = NULL;
 548 int     domainlist_count       = 0;
 549 BOOL    dont_deliver           = FALSE;
 550 BOOL    dot_ends               = TRUE;
 551 BOOL    drop_cr                = FALSE;         /* No longer used */
 552 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 553
 554 BOOL    enable_dollar_recipients = FALSE;
 555 BOOL    envelope_to_remove     = TRUE;
 556 int     errno_quota            = ERRNO_QUOTA;
 557 uschar *errors_copy            = NULL;
 558 int     error_handling         = ERRORS_SENDER;
 559 uschar *errors_reply_to        = NULL;
 560 int     errors_sender_rc       = EXIT_FAILURE;
 561
 562 gid_t   exim_gid               = EXIM_GID;
 563 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 564 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 565                         "\0<---------------Space to patch exim_path->";
 566 uid_t   exim_uid               = EXIM_UID;
 567 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 568 int     expand_forbid          = 0;
 569 int     expand_nlength[EXPAND_MAXN+1];
 570 int     expand_nmax            = -1;
 571 uschar *expand_nstring[EXPAND_MAXN+1];
 572 BOOL    expand_string_forcedfail = FALSE;
 573 uschar *expand_string_message;
 574 BOOL    extract_addresses_remove_arguments = TRUE;
 575 uschar *extra_local_interfaces = NULL;
 576
 577 int     fake_response          = OK;
 578 uschar *fake_response_text     = US"Your message has been rejected but is "
 579                                    "being kept for evaluation.\nIf it was a "
 580                                    "legitimate message, it may still be "
 581                                    "delivered to the target recipient(s).";
 582 int     filter_n[FILTER_VARIABLE_COUNT];
 583 BOOL    filter_running         = FALSE;
 584 int     filter_sn[FILTER_VARIABLE_COUNT];
 585 int     filter_test            = FTEST_NONE;
 586 uschar *filter_test_sfile      = NULL;
 587 uschar *filter_test_ufile      = NULL;
 588 uschar *filter_thisaddress     = NULL;
 589 int     finduser_retries       = 0;
 590 #ifdef WITH_OLD_DEMIME
 591 uschar *found_extension        = NULL;
 592 #endif
 593 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 594 uschar *freeze_tell            = NULL;
 595 uschar *freeze_tell_config     = NULL;
 596 uschar *fudged_queue_times     = US"";
 597
 598 uschar *gecos_name             = NULL;
 599 uschar *gecos_pattern          = NULL;
 600 rewrite_rule  *global_rewrite_rules = NULL;
 601
 602 uschar *headers_charset        = US HEADERS_CHARSET;
 603 int     header_insert_maxlen   = 64 * 1024;
 604 header_line  *header_last      = NULL;
 605 header_line  *header_list      = NULL;
 606 int     header_maxsize         = HEADER_MAXSIZE;
 607 int     header_line_maxsize    = 0;
 608
 609 header_name header_names[] = {
 610   { US"bcc",            3, TRUE,  htype_bcc },
 611   { US"cc",             2, TRUE,  htype_cc },
 612   { US"date",           4, TRUE,  htype_date },
 613   { US"delivery-date", 13, FALSE, htype_delivery_date },
 614   { US"envelope-to",   11, FALSE, htype_envelope_to },
 615   { US"from",           4, TRUE,  htype_from },
 616   { US"message-id",    10, TRUE,  htype_id },
 617   { US"received",       8, FALSE, htype_received },
 618   { US"reply-to",       8, FALSE, htype_reply_to },
 619   { US"return-path",   11, FALSE, htype_return_path },
 620   { US"sender",         6, TRUE,  htype_sender },
 621   { US"subject",        7, FALSE, htype_subject },
 622   { US"to",             2, TRUE,  htype_to }
 623 };
 624
 625 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 626
 627 BOOL    header_rewritten       = FALSE;
 628 uschar *helo_accept_junk_hosts = NULL;
 629 uschar *helo_allow_chars       = US"";
 630 uschar *helo_lookup_domains    = US"@ : @[]";
 631 uschar *helo_try_verify_hosts  = NULL;
 632 BOOL    helo_verified          = FALSE;
 633 BOOL    helo_verify_failed     = FALSE;
 634 uschar *helo_verify_hosts      = NULL;
 635 uschar *hex_digits             = US"0123456789abcdef";
 636 uschar *hold_domains           = NULL;
 637 BOOL    host_checking          = FALSE;
 638 BOOL    host_checking_callout  = FALSE;
 639 uschar *host_data              = NULL;
 640 BOOL    host_find_failed_syntax= FALSE;
 641 uschar *host_lookup            = NULL;
 642 BOOL    host_lookup_deferred   = FALSE;
 643 BOOL    host_lookup_failed     = FALSE;
 644 uschar *host_lookup_order      = US"bydns:byaddr";
 645 uschar *host_lookup_msg        = US"";
 646 int     host_number            = 0;
 647 uschar *host_number_string     = NULL;
 648 uschar *host_reject_connection = NULL;
 649 tree_node *hostlist_anchor     = NULL;
 650 int     hostlist_count         = 0;
 651 uschar *hosts_treat_as_local   = NULL;
 652 uschar *hosts_connection_nolog = NULL;
 653
 654 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 655 BOOL    ignore_fromline_local  = FALSE;
 656 uschar *ignore_fromline_hosts  = NULL;
 657 uschar *interface_address      = NULL;
 658 int     interface_port         = -1;
 659 BOOL    is_inetd               = FALSE;
 660 uschar *iterate_item           = NULL;
 661
 662 int     journal_fd             = -1;
 663
 664 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 665
 666 uschar *eldap_dn               = NULL;
 667 int     load_average           = -2;
 668 BOOL    local_error_message    = FALSE;
 669 BOOL    local_from_check       = TRUE;
 670 uschar *local_from_prefix      = NULL;
 671 uschar *local_from_suffix      = NULL;
 672
 673 #if HAVE_IPV6
 674 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 675 #else
 676 uschar *local_interfaces       = US"0.0.0.0";
 677 #endif
 678
 679 uschar *local_scan_data        = NULL;
 680 int     local_scan_timeout     = 5*60;
 681 BOOL    local_sender_retain    = FALSE;
 682 gid_t   local_user_gid         = (gid_t)(-1);
 683 uid_t   local_user_uid         = (uid_t)(-1);
 684
 685 tree_node *localpartlist_anchor= NULL;
 686 int     localpartlist_count    = 0;
 687 uschar *log_buffer             = NULL;
 688 unsigned int log_extra_selector = LX_default;
 689 uschar *log_file_path          = US LOG_FILE_PATH
 690                            "\0<--------------Space to patch log_file_path->";
 691
 692 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 693 are the ones that get put into log_write_selector. They can be used in calls to
 694 log_write() to test for the bit. The options with LX_xxx identifiers have
 695 values greater than 0x80000000 and are put int log_extra_selector (without the
 696 top bit). They are never used in calls to log_write(), but are tested
 697 independently. This separation became necessary when the number of log
 698 selectors was getting close to filling a 32-bit word. */
 699
 700 /* Note that this list must be in alphabetical order. */
 701
 702 bit_table log_options[]        = {
 703   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 704   { US"address_rewrite",              L_address_rewrite },
 705   { US"all",                          L_all },
 706   { US"all_parents",                  L_all_parents },
 707   { US"arguments",                    LX_arguments },
 708   { US"connection_reject",            L_connection_reject },
 709   { US"delay_delivery",               L_delay_delivery },
 710   { US"deliver_time",                 LX_deliver_time },
 711   { US"delivery_size",                LX_delivery_size },
 712   { US"dnslist_defer",                L_dnslist_defer },
 713   { US"etrn",                         L_etrn },
 714   { US"host_lookup_failed",           L_host_lookup_failed },
 715   { US"ident_timeout",                LX_ident_timeout },
 716   { US"incoming_interface",           LX_incoming_interface },
 717   { US"incoming_port",                LX_incoming_port },
 718   { US"lost_incoming_connection",     L_lost_incoming_connection },
 719   { US"outgoing_port",                LX_outgoing_port },
 720   { US"pid",                          LX_pid },
 721   { US"queue_run",                    L_queue_run },
 722   { US"queue_time",                   LX_queue_time },
 723   { US"queue_time_overall",           LX_queue_time_overall },
 724   { US"received_recipients",          LX_received_recipients },
 725   { US"received_sender",              LX_received_sender },
 726   { US"rejected_header",              LX_rejected_header },
 727   { US"rejected_headers",             LX_rejected_header },
 728   { US"retry_defer",                  L_retry_defer },
 729   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 730   { US"sender_on_delivery",           LX_sender_on_delivery },
 731   { US"sender_verify_fail",           LX_sender_verify_fail },
 732   { US"size_reject",                  L_size_reject },
 733   { US"skip_delivery",                L_skip_delivery },
 734   { US"smtp_confirmation",            LX_smtp_confirmation },
 735   { US"smtp_connection",              L_smtp_connection },
 736   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 737   { US"smtp_no_mail",                 LX_smtp_no_mail },
 738   { US"smtp_protocol_error",          L_smtp_protocol_error },
 739   { US"smtp_syntax_error",            L_smtp_syntax_error },
 740   { US"subject",                      LX_subject },
 741   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 742   { US"tls_cipher",                   LX_tls_cipher },
 743   { US"tls_peerdn",                   LX_tls_peerdn },
 744   { US"unknown_in_list",              LX_unknown_in_list }
 745 };
 746
 747 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 748 int     log_reject_target      = 0;
 749 uschar *log_selector_string    = NULL;
 750 FILE   *log_stderr             = NULL;
 751 BOOL    log_testing_mode       = FALSE;
 752 BOOL    log_timezone           = FALSE;
 753 unsigned int log_write_selector= L_default;
 754 uschar *login_sender_address   = NULL;
 755 int     lookup_open_max        = 25;
 756 uschar *lookup_value           = NULL;
 757
 758 macro_item  *macros            = NULL;
 759 uschar *mailstore_basename     = NULL;
 760 #ifdef WITH_CONTENT_SCAN
 761 uschar *malware_name           = NULL;  /* Virus Name */
 762 #endif
 763 int     max_received_linelength= 0;
 764 int     max_username_length    = 0;
 765 int     message_age            = 0;
 766 uschar *message_body           = NULL;
 767 uschar *message_body_end       = NULL;
 768 BOOL    message_body_newlines  = FALSE;
 769 int     message_body_size      = 0;
 770 int     message_body_visible   = 500;
 771 int     message_ended          = END_NOTSTARTED;
 772 uschar *message_headers        = NULL;
 773 uschar *message_id;
 774 uschar *message_id_domain      = NULL;
 775 uschar *message_id_text        = NULL;
 776 struct timeval message_id_tv   = { 0, 0 };
 777 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 778 uschar *message_id_external;
 779 int     message_linecount      = 0;
 780 BOOL    message_logs           = TRUE;
 781 int     message_size           = 0;
 782 uschar *message_size_limit     = US"50M";
 783 uschar  message_subdir[2]      = { 0, 0 };
 784 uschar *message_reference      = NULL;
 785
 786 /* MIME ACL expandables */
 787 #ifdef WITH_CONTENT_SCAN
 788 int     mime_anomaly_level     = 0;
 789 uschar *mime_anomaly_text      = NULL;
 790 uschar *mime_boundary          = NULL;
 791 uschar *mime_charset           = NULL;
 792 uschar *mime_content_description = NULL;
 793 uschar *mime_content_disposition = NULL;
 794 uschar *mime_content_id        = NULL;
 795 unsigned int mime_content_size = 0;
 796 uschar *mime_content_transfer_encoding = NULL;
 797 uschar *mime_content_type      = NULL;
 798 uschar *mime_decoded_filename  = NULL;
 799 uschar *mime_filename          = NULL;
 800 int     mime_is_multipart      = 0;
 801 int     mime_is_coverletter    = 0;
 802 int     mime_is_rfc822         = 0;
 803 int     mime_part_count        = -1;
 804 #endif
 805
 806 BOOL    mua_wrapper            = FALSE;
 807
 808 uid_t  *never_users            = NULL;
 809 #ifdef WITH_CONTENT_SCAN
 810 BOOL    no_mbox_unspool        = FALSE;
 811 #endif
 812 BOOL    no_multiline_responses = FALSE;
 813
 814 uid_t   original_euid;
 815 gid_t   originator_gid;
 816 uschar *originator_login       = NULL;
 817 uschar *originator_name        = NULL;
 818 uid_t   originator_uid;
 819 uschar *override_local_interfaces = NULL;
 820 uschar *override_pid_file_path = NULL;
 821
 822 BOOL    parse_allow_group      = FALSE;
 823 BOOL    parse_found_group      = FALSE;
 824 uschar *percent_hack_domains   = NULL;
 825 uschar *pid_file_path          = US PID_FILE_PATH
 826                            "\0<--------------Space to patch pid_file_path->";
 827 BOOL    pipelining_enable      = TRUE;
 828 uschar *pipelining_advertise_hosts = US"*";
 829 BOOL    preserve_message_logs  = FALSE;
 830 uschar *primary_hostname       = NULL;
 831 BOOL    print_topbitchars      = FALSE;
 832 uschar  process_info[PROCESS_INFO_SIZE];
 833 uschar *process_log_path       = NULL;
 834 BOOL    prod_requires_admin    = TRUE;
 835 uschar *prvscheck_address      = NULL;
 836 uschar *prvscheck_keynum       = NULL;
 837 uschar *prvscheck_result       = NULL;
 838
 839
 840 uschar *qualify_domain_recipient = NULL;
 841 uschar *qualify_domain_sender  = NULL;
 842 BOOL    queue_2stage           = FALSE;
 843 uschar *queue_domains          = NULL;
 844 int     queue_interval         = -1;
 845 BOOL    queue_list_requires_admin = TRUE;
 846 BOOL    queue_only             = FALSE;
 847 uschar *queue_only_file        = NULL;
 848 int     queue_only_load        = -1;
 849 BOOL    queue_only_load_latch  = TRUE;
 850 BOOL    queue_only_override    = TRUE;
 851 BOOL    queue_only_policy      = FALSE;
 852 BOOL    queue_run_first_delivery = FALSE;
 853 BOOL    queue_run_force        = FALSE;
 854 BOOL    queue_run_in_order     = FALSE;
 855 BOOL    queue_run_local        = FALSE;
 856 int     queue_run_max          = 5;
 857 pid_t   queue_run_pid          = (pid_t)0;
 858 int     queue_run_pipe         = -1;
 859 BOOL    queue_running          = FALSE;
 860 BOOL    queue_smtp             = FALSE;
 861 uschar *queue_smtp_domains     = NULL;
 862
 863 unsigned int random_seed       = 0;
 864 tree_node *ratelimiters_cmd    = NULL;
 865 tree_node *ratelimiters_conn   = NULL;
 866 tree_node *ratelimiters_mail   = NULL;
 867 uschar *raw_active_hostname    = NULL;
 868 uschar *raw_sender             = NULL;
 869 uschar **raw_recipients        = NULL;
 870 int     raw_recipients_count   = 0;
 871
 872 int     rcpt_count             = 0;
 873 int     rcpt_fail_count        = 0;
 874 int     rcpt_defer_count       = 0;
 875 gid_t   real_gid;
 876 uid_t   real_uid;
 877 BOOL    really_exim            = TRUE;
 878 BOOL    receive_call_bombout   = FALSE;
 879 int     receive_linecount      = 0;
 880 int     receive_messagecount   = 0;
 881 int     receive_timeout        = 0;
 882 int     received_count         = 0;
 883 uschar *received_for           = NULL;
 884
 885 /*  This is the default text for Received headers generated by Exim. The
 886 date  will be automatically added on the end. */
 887
 888 uschar *received_header_text   = US
 889      "Received: "
 890      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 891      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 892      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 893      "by $primary_hostname "
 894      "${if def:received_protocol {with $received_protocol}} "
 895      #ifdef SUPPORT_TLS
 896      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 897      #endif
 898      "(Exim $version_number)\n\t"
 899      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 900      "id $message_exim_id"
 901      "${if def:received_for {\n\tfor $received_for}}"
 902      "\0<---------------Space to patch received_header_text->";
 903
 904 int     received_headers_max   = 30;
 905 uschar *received_protocol      = NULL;
 906 int     received_time          = 0;
 907 uschar *recipient_data         = NULL;
 908 uschar *recipient_unqualified_hosts = NULL;
 909 uschar *recipient_verify_failure = NULL;
 910 int     recipients_count       = 0;
 911 BOOL    recipients_discarded   = FALSE;
 912 recipient_item  *recipients_list = NULL;
 913 int     recipients_list_max    = 0;
 914 int     recipients_max         = 0;
 915 BOOL    recipients_max_reject  = FALSE;
 916 const pcre *regex_AUTH         = NULL;
 917 const pcre *regex_check_dns_names = NULL;
 918 const pcre *regex_From         = NULL;
 919 const pcre *regex_IGNOREQUOTA  = NULL;
 920 const pcre *regex_PIPELINING   = NULL;
 921 const pcre *regex_SIZE         = NULL;
 922 const pcre *regex_smtp_code    = NULL;
 923 const pcre *regex_ismsgid      = NULL;
 924 #ifdef WITH_CONTENT_SCAN
 925 uschar *regex_match_string     = NULL;
 926 #endif
 927 int     remote_delivery_count  = 0;
 928 int     remote_max_parallel    = 2;
 929 uschar *remote_sort_domains    = NULL;
 930 int     retry_data_expire      = 7*24*60*60;
 931 int     retry_interval_max     = 24*60*60;
 932 int     retry_maximum_timeout  = 0;        /* set from retry config */
 933 retry_config  *retries         = NULL;
 934 uschar *return_path            = NULL;
 935 BOOL    return_path_remove     = TRUE;
 936 int     rewrite_existflags     = 0;
 937 uschar *rfc1413_hosts          = US"*";
 938 int     rfc1413_query_timeout  = 5;
 939 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 940 uid_t   root_uid               = ROOT_UID;
 941
 942 router_instance  *routers  = NULL;
 943 router_instance  router_defaults = {
 944     NULL,                      /* chain pointer */
 945     NULL,                      /* name */
 946     NULL,                      /* info */
 947     NULL,                      /* private options block pointer */
 948     NULL,                      /* driver name */
 949
 950     NULL,                      /* address_data */
 951 #ifdef EXPERIMENTAL_BRIGHTMAIL
 952     NULL,                      /* bmi_rule */
 953 #endif
 954     NULL,                      /* cannot_route_message */
 955     NULL,                      /* condition */
 956     NULL,                      /* current_directory */
 957     NULL,                      /* debug_string */
 958     NULL,                      /* domains */
 959     NULL,                      /* errors_to */
 960     NULL,                      /* expand_gid */
 961     NULL,                      /* expand_uid */
 962     NULL,                      /* expand_more */
 963     NULL,                      /* expand_unseen */
 964     NULL,                      /* extra_headers */
 965     NULL,                      /* fallback_hosts */
 966     NULL,                      /* home_directory */
 967     NULL,                      /* ignore_target_hosts */
 968     NULL,                      /* local_parts */
 969     NULL,                      /* pass_router_name */
 970     NULL,                      /* prefix */
 971     NULL,                      /* redirect_router_name */
 972     NULL,                      /* remove_headers */
 973     NULL,                      /* require_files */
 974     NULL,                      /* router_home_directory */
 975     US"freeze",                /* self */
 976     NULL,                      /* senders */
 977     NULL,                      /* suffix */
 978     NULL,                      /* translate_ip_address */
 979     NULL,                      /* transport_name */
 980
 981     TRUE,                      /* address_test */
 982 #ifdef EXPERIMENTAL_BRIGHTMAIL
 983     FALSE,                     /* bmi_deliver_alternate */
 984     FALSE,                     /* bmi_deliver_default */
 985     FALSE,                     /* bmi_dont_deliver */
 986 #endif
 987     TRUE,                      /* expn */
 988     FALSE,                     /* caseful_local_part */
 989     FALSE,                     /* check_local_user */
 990     FALSE,                     /* disable_logging */
 991     FALSE,                     /* fail_verify_recipient */
 992     FALSE,                     /* fail_verify_sender */
 993     FALSE,                     /* gid_set */
 994     FALSE,                     /* initgroups */
 995     TRUE_UNSET,                /* log_as_local */
 996     TRUE,                      /* more */
 997     FALSE,                     /* pass_on_timeout */
 998     FALSE,                     /* prefix_optional */
 999     TRUE,                      /* repeat_use */
1000     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1001     FALSE,                     /* same_domain_copy_routing */
1002     FALSE,                     /* self_rewrite */
1003     FALSE,                     /* suffix_optional */
1004     FALSE,                     /* verify_only */
1005     TRUE,                      /* verify_recipient */
1006     TRUE,                      /* verify_sender */
1007     FALSE,                     /* uid_set */
1008     FALSE,                     /* unseen */
1009
1010     self_freeze,               /* self_code */
1011     (uid_t)(-1),               /* uid */
1012     (gid_t)(-1),               /* gid */
1013
1014     NULL,                      /* fallback_hostlist */
1015     NULL,                      /* transport instance */
1016     NULL,                      /* pass_router */
1017     NULL                       /* redirect_router */
1018 };
1019
1020 ip_address_item *running_interfaces = NULL;
1021 BOOL    running_in_test_harness = FALSE;
1022
1023 /* This is a weird one. The following string gets patched in the binary by the
1024 script that sets up a copy of Exim for running in the test harness. It seems
1025 that compilers are now clever, and share constant strings if they can.
1026 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1027 make use of the end of this string in order to save space. So the patching then
1028 wrecks this. We defeat this optimization by adding some additional characters
1029 onto the end of the string. */
1030
1031 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1032
1033 int     runrc                  = 0;
1034
1035 uschar *search_error_message   = NULL;
1036 BOOL    search_find_defer      = FALSE;
1037 uschar *self_hostname          = NULL;
1038 uschar *sender_address         = NULL;
1039 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1040 uschar *sender_address_data    = NULL;
1041 BOOL    sender_address_forced  = FALSE;
1042 uschar *sender_address_unrewritten = NULL;
1043 uschar *sender_data            = NULL;
1044 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1045 uschar *sender_fullhost        = NULL;
1046 uschar *sender_helo_name       = NULL;
1047 uschar **sender_host_aliases   = &no_aliases;
1048 uschar *sender_host_address    = NULL;
1049 uschar *sender_host_authenticated = NULL;
1050 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1051 uschar *sender_host_name       = NULL;
1052 int     sender_host_port       = 0;
1053 BOOL    sender_host_notsocket  = FALSE;
1054 BOOL    sender_host_unknown    = FALSE;
1055 uschar *sender_ident           = NULL;
1056 BOOL    sender_local           = FALSE;
1057 BOOL    sender_name_forced     = FALSE;
1058 uschar *sender_rate            = NULL;
1059 uschar *sender_rate_limit      = NULL;
1060 uschar *sender_rate_period     = NULL;
1061 uschar *sender_rcvhost         = NULL;
1062 BOOL    sender_set_untrusted   = FALSE;
1063 uschar *sender_unqualified_hosts = NULL;
1064 uschar *sender_verify_failure = NULL;
1065 address_item *sender_verified_list  = NULL;
1066 address_item *sender_verified_failed = NULL;
1067 int     sender_verified_rc     = -1;
1068 BOOL    sender_verified_responded = FALSE;
1069 uschar *sending_ip_address     = NULL;
1070 int     sending_port           = -1;
1071 volatile  BOOL sigalrm_seen    = FALSE;
1072 uschar **sighup_argv           = NULL;
1073 int     smtp_accept_count      = 0;
1074 BOOL    smtp_accept_keepalive  = TRUE;
1075 int     smtp_accept_max        = 20;
1076 int     smtp_accept_max_nonmail= 10;
1077 uschar *smtp_accept_max_nonmail_hosts = US"*";
1078 int     smtp_accept_max_per_connection = 1000;
1079 uschar *smtp_accept_max_per_host = NULL;
1080 int     smtp_accept_queue      = 0;
1081 int     smtp_accept_queue_per_connection = 10;
1082 int     smtp_accept_reserve    = 0;
1083 uschar *smtp_active_hostname   = NULL;
1084 BOOL    smtp_authenticated     = FALSE;
1085 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1086                              "Exim $version_number $tod_full"
1087                              "\0<---------------Space to patch smtp_banner->";
1088 BOOL    smtp_batched_input     = FALSE;
1089 BOOL    smtp_check_spool_space = TRUE;
1090 int     smtp_ch_index          = 0;
1091 uschar *smtp_cmd_argument      = NULL;
1092 uschar *smtp_cmd_buffer        = NULL;
1093 time_t  smtp_connection_start  = 0;
1094 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1095 int     smtp_connect_backlog   = 20;
1096 double  smtp_delay_mail        = 0.0;
1097 double  smtp_delay_rcpt        = 0.0;
1098 BOOL    smtp_enforce_sync      = TRUE;
1099 FILE   *smtp_in                = NULL;
1100 BOOL    smtp_input             = FALSE;
1101 int     smtp_load_reserve      = -1;
1102 int     smtp_mailcmd_count     = 0;
1103 FILE   *smtp_out               = NULL;
1104 uschar *smtp_etrn_command      = NULL;
1105 BOOL    smtp_etrn_serialize    = TRUE;
1106 int     smtp_max_synprot_errors= 3;
1107 int     smtp_max_unknown_commands = 3;
1108 uschar *smtp_notquit_reason    = NULL;
1109 uschar *smtp_ratelimit_hosts   = NULL;
1110 uschar *smtp_ratelimit_mail    = NULL;
1111 uschar *smtp_ratelimit_rcpt    = NULL;
1112 uschar *smtp_read_error        = US"";
1113 int     smtp_receive_timeout   = 5*60;
1114 uschar *smtp_reserve_hosts     = NULL;
1115 BOOL    smtp_return_error_details = FALSE;
1116 int     smtp_rlm_base          = 0;
1117 double  smtp_rlm_factor        = 0.0;
1118 int     smtp_rlm_limit         = 0;
1119 int     smtp_rlm_threshold     = INT_MAX;
1120 int     smtp_rlr_base          = 0;
1121 double  smtp_rlr_factor        = 0.0;
1122 int     smtp_rlr_limit         = 0;
1123 int     smtp_rlr_threshold     = INT_MAX;
1124 BOOL    smtp_use_pipelining    = FALSE;
1125 BOOL    smtp_use_size          = FALSE;
1126
1127 #ifdef WITH_CONTENT_SCAN
1128 uschar *spamd_address          = US"127.0.0.1 783";
1129 uschar *spam_bar               = NULL;
1130 uschar *spam_report            = NULL;
1131 uschar *spam_score             = NULL;
1132 uschar *spam_score_int         = NULL;
1133 #endif
1134 #ifdef EXPERIMENTAL_SPF
1135 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1136 uschar *spf_header_comment     = NULL;
1137 uschar *spf_received           = NULL;
1138 uschar *spf_result             = NULL;
1139 uschar *spf_smtp_comment       = NULL;
1140 #endif
1141
1142 BOOL    split_spool_directory  = FALSE;
1143 uschar *spool_directory        = US SPOOL_DIRECTORY
1144                            "\0<--------------Space to patch spool_directory->";
1145 #ifdef EXPERIMENTAL_SRS
1146 uschar *srs_config             = NULL;
1147 uschar *srs_db_address         = NULL;
1148 uschar *srs_db_key             = NULL;
1149 int     srs_hashlength         = 6;
1150 int     srs_hashmin            = -1;
1151 int     srs_maxage             = 31;
1152 uschar *srs_orig_recipient     = NULL;
1153 uschar *srs_orig_sender        = NULL;
1154 uschar *srs_recipient          = NULL;
1155 uschar *srs_secrets            = NULL;
1156 uschar *srs_status             = NULL;
1157 BOOL    srs_usehash            = TRUE;
1158 BOOL    srs_usetimestamp       = TRUE;
1159 #endif
1160 BOOL    strict_acl_vars        = FALSE;
1161 int     string_datestamp_offset= -1;
1162 BOOL    strip_excess_angle_brackets = FALSE;
1163 BOOL    strip_trailing_dot     = FALSE;
1164 uschar *submission_domain      = NULL;
1165 BOOL    submission_mode        = FALSE;
1166 uschar *submission_name        = NULL;
1167 BOOL    suppress_local_fixups  = FALSE;
1168 BOOL    synchronous_delivery   = FALSE;
1169 BOOL    syslog_duplication     = TRUE;
1170 int     syslog_facility        = LOG_MAIL;
1171 uschar *syslog_processname     = US"exim";
1172 BOOL    syslog_timestamp       = TRUE;
1173 uschar *system_filter          = NULL;
1174
1175 uschar *system_filter_directory_transport = NULL;
1176 uschar *system_filter_file_transport = NULL;
1177 uschar *system_filter_pipe_transport = NULL;
1178 uschar *system_filter_reply_transport = NULL;
1179
1180 gid_t   system_filter_gid      = 0;
1181 BOOL    system_filter_gid_set  = FALSE;
1182 uid_t   system_filter_uid      = 0;
1183 BOOL    system_filter_uid_set  = FALSE;
1184 BOOL    system_filtering       = FALSE;
1185
1186 BOOL    tcp_nodelay            = TRUE;
1187 int     test_harness_load_avg  = 0;
1188 int     thismessage_size_limit = 0;
1189 int     timeout_frozen_after   = 0;
1190 BOOL    timestamps_utc         = FALSE;
1191
1192 transport_instance  *transports = NULL;
1193
1194 transport_instance  transport_defaults = {
1195     NULL,                     /* chain pointer */
1196     NULL,                     /* name */
1197     NULL,                     /* info */
1198     NULL,                     /* private options block pointer */
1199     NULL,                     /* driver name */
1200     NULL,                     /* setup entry point */
1201     1,                        /* batch_max */
1202     NULL,                     /* batch_id */
1203     NULL,                     /* home_dir */
1204     NULL,                     /* current_dir */
1205     TRUE,                     /* multi-domain */
1206     FALSE,                    /* overrides_hosts */
1207     100,                      /* max_addresses */
1208     500,                      /* connection_max_messages */
1209     FALSE,                    /* deliver_as_creator */
1210     FALSE,                    /* disable_logging */
1211     FALSE,                    /* initgroups */
1212     FALSE,                    /* uid_set */
1213     FALSE,                    /* gid_set */
1214     (uid_t)(-1),              /* uid */
1215     (gid_t)(-1),              /* gid */
1216     NULL,                     /* expand_uid */
1217     NULL,                     /* expand_gid */
1218     NULL,                     /* warn_message */
1219     NULL,                     /* shadow */
1220     NULL,                     /* shadow_condition */
1221     NULL,                     /* filter_command */
1222     NULL,                     /* add_headers */
1223     NULL,                     /* remove_headers */
1224     NULL,                     /* return_path */
1225     NULL,                     /* debug_string */
1226     NULL,                     /* message_size_limit */
1227     NULL,                     /* headers_rewrite */
1228     NULL,                     /* rewrite_rules */
1229     0,                        /* rewrite_existflags */
1230     300,                      /* filter_timeout */
1231     FALSE,                    /* body_only */
1232     FALSE,                    /* delivery_date_add */
1233     FALSE,                    /* envelope_to_add */
1234     FALSE,                    /* headers_only */
1235     FALSE,                    /* rcpt_include_affixes */
1236     FALSE,                    /* return_path_add */
1237     FALSE,                    /* return_output */
1238     FALSE,                    /* return_fail_output */
1239     FALSE,                    /* log_output */
1240     FALSE,                    /* log_fail_output */
1241     FALSE,                    /* log_defer_output */
1242     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1243                                  1 nor 0 so can detect unset */
1244 };
1245
1246 int     transport_count;
1247 uschar **transport_filter_argv  = NULL;
1248 int     transport_filter_timeout;
1249 BOOL    transport_filter_timed_out = FALSE;
1250 int     transport_write_timeout= 0;
1251
1252 tree_node  *tree_dns_fails     = NULL;
1253 tree_node  *tree_duplicates    = NULL;
1254 tree_node  *tree_nonrecipients = NULL;
1255 tree_node  *tree_unusable      = NULL;
1256
1257 BOOL    trusted_caller         = FALSE;
1258 gid_t  *trusted_groups         = NULL;
1259 uid_t  *trusted_users          = NULL;
1260 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1261
1262 uschar *unknown_login          = NULL;
1263 uschar *unknown_username       = NULL;
1264 uschar *untrusted_set_sender   = NULL;
1265
1266 /*  A regex for matching a "From_" line in an incoming message, in the form
1267
1268     From ph10 Fri Jan  5 12:35 GMT 1996
1269
1270 which  the "mail" commands send to the MTA (undocumented, of course), or in
1271 the  form
1272
1273     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1274
1275 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1276 Because  of variations in time formats, just match up to the minutes. That
1277 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1278 so  just require one digit for hours and minutes. The weekday is also absent
1279 in  some forms. */
1280
1281 uschar *uucp_from_pattern      = US
1282    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1283    "(?:"                                          /* Non-extracting bracket */
1284    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1285    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1286    ")"                                            /* End alternation */
1287    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1288
1289 uschar *uucp_from_sender       = US"$1";
1290
1291 uschar *warn_message_file      = NULL;
1292 uschar *warnmsg_delay          = NULL;
1293 uschar *warnmsg_recipients     = NULL;
1294 BOOL    write_rejectlog        = TRUE;
1295
1296 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1297 uschar *version_date           = US"?";
1298 uschar *version_cnumber        = US"????";
1299 uschar *version_string         = US"?";
1300
1301 int     warning_count          = 0;
1302
1303 /*  End of globals.c */