src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.81 2008/02/12 12:52:51 nm4 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 #ifdef EXPERIMENTAL_DOMAINKEYS
 530 uschar *dk_signing_domain      = NULL;
 531 uschar *dk_signing_selector    = NULL;
 532 int     dk_do_verify           = 0;
 533 #endif
 534
 535 #ifdef EXPERIMENTAL_DKIM
 536 uschar *dkim_signing_domain      = NULL;
 537 uschar *dkim_signing_selector    = NULL;
 538 int     dkim_do_verify           = 0;
 539 #endif
 540
 541 uschar *dns_again_means_nonexist = NULL;
 542 int     dns_csa_search_limit   = 5;
 543 BOOL    dns_csa_use_reverse    = TRUE;
 544 uschar *dns_ipv4_lookup        = NULL;
 545 int     dns_retrans            = 0;
 546 int     dns_retry              = 0;
 547 uschar *dnslist_domain         = NULL;
 548 uschar *dnslist_matched        = NULL;
 549 uschar *dnslist_text           = NULL;
 550 uschar *dnslist_value          = NULL;
 551 tree_node *domainlist_anchor   = NULL;
 552 int     domainlist_count       = 0;
 553 BOOL    dont_deliver           = FALSE;
 554 BOOL    dot_ends               = TRUE;
 555 BOOL    drop_cr                = FALSE;         /* No longer used */
 556 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 557
 558 BOOL    enable_dollar_recipients = FALSE;
 559 BOOL    envelope_to_remove     = TRUE;
 560 int     errno_quota            = ERRNO_QUOTA;
 561 uschar *errors_copy            = NULL;
 562 int     error_handling         = ERRORS_SENDER;
 563 uschar *errors_reply_to        = NULL;
 564 int     errors_sender_rc       = EXIT_FAILURE;
 565
 566 gid_t   exim_gid               = EXIM_GID;
 567 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 568 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 569                         "\0<---------------Space to patch exim_path->";
 570 uid_t   exim_uid               = EXIM_UID;
 571 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 572 int     expand_forbid          = 0;
 573 int     expand_nlength[EXPAND_MAXN+1];
 574 int     expand_nmax            = -1;
 575 uschar *expand_nstring[EXPAND_MAXN+1];
 576 BOOL    expand_string_forcedfail = FALSE;
 577 uschar *expand_string_message;
 578 BOOL    extract_addresses_remove_arguments = TRUE;
 579 uschar *extra_local_interfaces = NULL;
 580
 581 int     fake_response          = OK;
 582 uschar *fake_response_text     = US"Your message has been rejected but is "
 583                                    "being kept for evaluation.\nIf it was a "
 584                                    "legitimate message, it may still be "
 585                                    "delivered to the target recipient(s).";
 586 int     filter_n[FILTER_VARIABLE_COUNT];
 587 BOOL    filter_running         = FALSE;
 588 int     filter_sn[FILTER_VARIABLE_COUNT];
 589 int     filter_test            = FTEST_NONE;
 590 uschar *filter_test_sfile      = NULL;
 591 uschar *filter_test_ufile      = NULL;
 592 uschar *filter_thisaddress     = NULL;
 593 int     finduser_retries       = 0;
 594 #ifdef WITH_OLD_DEMIME
 595 uschar *found_extension        = NULL;
 596 #endif
 597 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 598 uschar *freeze_tell            = NULL;
 599 uschar *freeze_tell_config     = NULL;
 600 uschar *fudged_queue_times     = US"";
 601
 602 uschar *gecos_name             = NULL;
 603 uschar *gecos_pattern          = NULL;
 604 rewrite_rule  *global_rewrite_rules = NULL;
 605
 606 uschar *headers_charset        = US HEADERS_CHARSET;
 607 int     header_insert_maxlen   = 64 * 1024;
 608 header_line  *header_last      = NULL;
 609 header_line  *header_list      = NULL;
 610 int     header_maxsize         = HEADER_MAXSIZE;
 611 int     header_line_maxsize    = 0;
 612
 613 header_name header_names[] = {
 614   { US"bcc",            3, TRUE,  htype_bcc },
 615   { US"cc",             2, TRUE,  htype_cc },
 616   { US"date",           4, TRUE,  htype_date },
 617   { US"delivery-date", 13, FALSE, htype_delivery_date },
 618   { US"envelope-to",   11, FALSE, htype_envelope_to },
 619   { US"from",           4, TRUE,  htype_from },
 620   { US"message-id",    10, TRUE,  htype_id },
 621   { US"received",       8, FALSE, htype_received },
 622   { US"reply-to",       8, FALSE, htype_reply_to },
 623   { US"return-path",   11, FALSE, htype_return_path },
 624   { US"sender",         6, TRUE,  htype_sender },
 625   { US"subject",        7, FALSE, htype_subject },
 626   { US"to",             2, TRUE,  htype_to }
 627 };
 628
 629 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 630
 631 BOOL    header_rewritten       = FALSE;
 632 uschar *helo_accept_junk_hosts = NULL;
 633 uschar *helo_allow_chars       = US"";
 634 uschar *helo_lookup_domains    = US"@ : @[]";
 635 uschar *helo_try_verify_hosts  = NULL;
 636 BOOL    helo_verified          = FALSE;
 637 BOOL    helo_verify_failed     = FALSE;
 638 uschar *helo_verify_hosts      = NULL;
 639 uschar *hex_digits             = US"0123456789abcdef";
 640 uschar *hold_domains           = NULL;
 641 BOOL    host_checking          = FALSE;
 642 BOOL    host_checking_callout  = FALSE;
 643 uschar *host_data              = NULL;
 644 BOOL    host_find_failed_syntax= FALSE;
 645 uschar *host_lookup            = NULL;
 646 BOOL    host_lookup_deferred   = FALSE;
 647 BOOL    host_lookup_failed     = FALSE;
 648 uschar *host_lookup_order      = US"bydns:byaddr";
 649 uschar *host_lookup_msg        = US"";
 650 int     host_number            = 0;
 651 uschar *host_number_string     = NULL;
 652 uschar *host_reject_connection = NULL;
 653 tree_node *hostlist_anchor     = NULL;
 654 int     hostlist_count         = 0;
 655 uschar *hosts_treat_as_local   = NULL;
 656 uschar *hosts_connection_nolog = NULL;
 657
 658 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 659 BOOL    ignore_fromline_local  = FALSE;
 660 uschar *ignore_fromline_hosts  = NULL;
 661 uschar *interface_address      = NULL;
 662 int     interface_port         = -1;
 663 BOOL    is_inetd               = FALSE;
 664 uschar *iterate_item           = NULL;
 665
 666 int     journal_fd             = -1;
 667
 668 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 669
 670 uschar *eldap_dn               = NULL;
 671 int     load_average           = -2;
 672 BOOL    local_error_message    = FALSE;
 673 BOOL    local_from_check       = TRUE;
 674 uschar *local_from_prefix      = NULL;
 675 uschar *local_from_suffix      = NULL;
 676
 677 #if HAVE_IPV6
 678 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 679 #else
 680 uschar *local_interfaces       = US"0.0.0.0";
 681 #endif
 682
 683 uschar *local_scan_data        = NULL;
 684 int     local_scan_timeout     = 5*60;
 685 BOOL    local_sender_retain    = FALSE;
 686 gid_t   local_user_gid         = (gid_t)(-1);
 687 uid_t   local_user_uid         = (uid_t)(-1);
 688
 689 tree_node *localpartlist_anchor= NULL;
 690 int     localpartlist_count    = 0;
 691 uschar *log_buffer             = NULL;
 692 unsigned int log_extra_selector = LX_default;
 693 uschar *log_file_path          = US LOG_FILE_PATH
 694                            "\0<--------------Space to patch log_file_path->";
 695
 696 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 697 are the ones that get put into log_write_selector. They can be used in calls to
 698 log_write() to test for the bit. The options with LX_xxx identifiers have
 699 values greater than 0x80000000 and are put int log_extra_selector (without the
 700 top bit). They are never used in calls to log_write(), but are tested
 701 independently. This separation became necessary when the number of log
 702 selectors was getting close to filling a 32-bit word. */
 703
 704 /* Note that this list must be in alphabetical order. */
 705
 706 bit_table log_options[]        = {
 707   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 708   { US"address_rewrite",              L_address_rewrite },
 709   { US"all",                          L_all },
 710   { US"all_parents",                  L_all_parents },
 711   { US"arguments",                    LX_arguments },
 712   { US"connection_reject",            L_connection_reject },
 713   { US"delay_delivery",               L_delay_delivery },
 714   { US"deliver_time",                 LX_deliver_time },
 715   { US"delivery_size",                LX_delivery_size },
 716   { US"dnslist_defer",                L_dnslist_defer },
 717   { US"etrn",                         L_etrn },
 718   { US"host_lookup_failed",           L_host_lookup_failed },
 719   { US"ident_timeout",                LX_ident_timeout },
 720   { US"incoming_interface",           LX_incoming_interface },
 721   { US"incoming_port",                LX_incoming_port },
 722   { US"lost_incoming_connection",     L_lost_incoming_connection },
 723   { US"outgoing_port",                LX_outgoing_port },
 724   { US"pid",                          LX_pid },
 725   { US"queue_run",                    L_queue_run },
 726   { US"queue_time",                   LX_queue_time },
 727   { US"queue_time_overall",           LX_queue_time_overall },
 728   { US"received_recipients",          LX_received_recipients },
 729   { US"received_sender",              LX_received_sender },
 730   { US"rejected_header",              LX_rejected_header },
 731   { US"rejected_headers",             LX_rejected_header },
 732   { US"retry_defer",                  L_retry_defer },
 733   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 734   { US"sender_on_delivery",           LX_sender_on_delivery },
 735   { US"sender_verify_fail",           LX_sender_verify_fail },
 736   { US"size_reject",                  L_size_reject },
 737   { US"skip_delivery",                L_skip_delivery },
 738   { US"smtp_confirmation",            LX_smtp_confirmation },
 739   { US"smtp_connection",              L_smtp_connection },
 740   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 741   { US"smtp_no_mail",                 LX_smtp_no_mail },
 742   { US"smtp_protocol_error",          L_smtp_protocol_error },
 743   { US"smtp_syntax_error",            L_smtp_syntax_error },
 744   { US"subject",                      LX_subject },
 745   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 746   { US"tls_cipher",                   LX_tls_cipher },
 747   { US"tls_peerdn",                   LX_tls_peerdn },
 748   { US"unknown_in_list",              LX_unknown_in_list }
 749 };
 750
 751 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 752 int     log_reject_target      = 0;
 753 uschar *log_selector_string    = NULL;
 754 FILE   *log_stderr             = NULL;
 755 BOOL    log_testing_mode       = FALSE;
 756 BOOL    log_timezone           = FALSE;
 757 unsigned int log_write_selector= L_default;
 758 uschar *login_sender_address   = NULL;
 759 int     lookup_open_max        = 25;
 760 uschar *lookup_value           = NULL;
 761
 762 macro_item  *macros            = NULL;
 763 uschar *mailstore_basename     = NULL;
 764 #ifdef WITH_CONTENT_SCAN
 765 uschar *malware_name           = NULL;  /* Virus Name */
 766 #endif
 767 int     max_received_linelength= 0;
 768 int     max_username_length    = 0;
 769 int     message_age            = 0;
 770 uschar *message_body           = NULL;
 771 uschar *message_body_end       = NULL;
 772 BOOL    message_body_newlines  = FALSE;
 773 int     message_body_size      = 0;
 774 int     message_body_visible   = 500;
 775 int     message_ended          = END_NOTSTARTED;
 776 uschar *message_headers        = NULL;
 777 uschar *message_id;
 778 uschar *message_id_domain      = NULL;
 779 uschar *message_id_text        = NULL;
 780 struct timeval message_id_tv   = { 0, 0 };
 781 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 782 uschar *message_id_external;
 783 int     message_linecount      = 0;
 784 BOOL    message_logs           = TRUE;
 785 int     message_size           = 0;
 786 uschar *message_size_limit     = US"50M";
 787 uschar  message_subdir[2]      = { 0, 0 };
 788 uschar *message_reference      = NULL;
 789
 790 /* MIME ACL expandables */
 791 #ifdef WITH_CONTENT_SCAN
 792 int     mime_anomaly_level     = 0;
 793 uschar *mime_anomaly_text      = NULL;
 794 uschar *mime_boundary          = NULL;
 795 uschar *mime_charset           = NULL;
 796 uschar *mime_content_description = NULL;
 797 uschar *mime_content_disposition = NULL;
 798 uschar *mime_content_id        = NULL;
 799 unsigned int mime_content_size = 0;
 800 uschar *mime_content_transfer_encoding = NULL;
 801 uschar *mime_content_type      = NULL;
 802 uschar *mime_decoded_filename  = NULL;
 803 uschar *mime_filename          = NULL;
 804 int     mime_is_multipart      = 0;
 805 int     mime_is_coverletter    = 0;
 806 int     mime_is_rfc822         = 0;
 807 int     mime_part_count        = -1;
 808 #endif
 809
 810 BOOL    mua_wrapper            = FALSE;
 811
 812 uid_t  *never_users            = NULL;
 813 #ifdef WITH_CONTENT_SCAN
 814 BOOL    no_mbox_unspool        = FALSE;
 815 #endif
 816 BOOL    no_multiline_responses = FALSE;
 817
 818 uid_t   original_euid;
 819 gid_t   originator_gid;
 820 uschar *originator_login       = NULL;
 821 uschar *originator_name        = NULL;
 822 uid_t   originator_uid;
 823 uschar *override_local_interfaces = NULL;
 824 uschar *override_pid_file_path = NULL;
 825
 826 BOOL    parse_allow_group      = FALSE;
 827 BOOL    parse_found_group      = FALSE;
 828 uschar *percent_hack_domains   = NULL;
 829 uschar *pid_file_path          = US PID_FILE_PATH
 830                            "\0<--------------Space to patch pid_file_path->";
 831 BOOL    pipelining_enable      = TRUE;
 832 uschar *pipelining_advertise_hosts = US"*";
 833 BOOL    preserve_message_logs  = FALSE;
 834 uschar *primary_hostname       = NULL;
 835 BOOL    print_topbitchars      = FALSE;
 836 uschar  process_info[PROCESS_INFO_SIZE];
 837 uschar *process_log_path       = NULL;
 838 BOOL    prod_requires_admin    = TRUE;
 839 uschar *prvscheck_address      = NULL;
 840 uschar *prvscheck_keynum       = NULL;
 841 uschar *prvscheck_result       = NULL;
 842
 843
 844 uschar *qualify_domain_recipient = NULL;
 845 uschar *qualify_domain_sender  = NULL;
 846 BOOL    queue_2stage           = FALSE;
 847 uschar *queue_domains          = NULL;
 848 int     queue_interval         = -1;
 849 BOOL    queue_list_requires_admin = TRUE;
 850 BOOL    queue_only             = FALSE;
 851 uschar *queue_only_file        = NULL;
 852 int     queue_only_load        = -1;
 853 BOOL    queue_only_load_latch  = TRUE;
 854 BOOL    queue_only_override    = TRUE;
 855 BOOL    queue_only_policy      = FALSE;
 856 BOOL    queue_run_first_delivery = FALSE;
 857 BOOL    queue_run_force        = FALSE;
 858 BOOL    queue_run_in_order     = FALSE;
 859 BOOL    queue_run_local        = FALSE;
 860 int     queue_run_max          = 5;
 861 pid_t   queue_run_pid          = (pid_t)0;
 862 int     queue_run_pipe         = -1;
 863 BOOL    queue_running          = FALSE;
 864 BOOL    queue_smtp             = FALSE;
 865 uschar *queue_smtp_domains     = NULL;
 866
 867 unsigned int random_seed       = 0;
 868 tree_node *ratelimiters_cmd    = NULL;
 869 tree_node *ratelimiters_conn   = NULL;
 870 tree_node *ratelimiters_mail   = NULL;
 871 uschar *raw_active_hostname    = NULL;
 872 uschar *raw_sender             = NULL;
 873 uschar **raw_recipients        = NULL;
 874 int     raw_recipients_count   = 0;
 875
 876 int     rcpt_count             = 0;
 877 int     rcpt_fail_count        = 0;
 878 int     rcpt_defer_count       = 0;
 879 gid_t   real_gid;
 880 uid_t   real_uid;
 881 BOOL    really_exim            = TRUE;
 882 BOOL    receive_call_bombout   = FALSE;
 883 int     receive_linecount      = 0;
 884 int     receive_messagecount   = 0;
 885 int     receive_timeout        = 0;
 886 int     received_count         = 0;
 887 uschar *received_for           = NULL;
 888
 889 /*  This is the default text for Received headers generated by Exim. The
 890 date  will be automatically added on the end. */
 891
 892 uschar *received_header_text   = US
 893      "Received: "
 894      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 895      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 896      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 897      "by $primary_hostname "
 898      "${if def:received_protocol {with $received_protocol}} "
 899      #ifdef SUPPORT_TLS
 900      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 901      #endif
 902      "(Exim $version_number)\n\t"
 903      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 904      "id $message_exim_id"
 905      "${if def:received_for {\n\tfor $received_for}}"
 906      "\0<---------------Space to patch received_header_text->";
 907
 908 int     received_headers_max   = 30;
 909 uschar *received_protocol      = NULL;
 910 int     received_time          = 0;
 911 uschar *recipient_data         = NULL;
 912 uschar *recipient_unqualified_hosts = NULL;
 913 uschar *recipient_verify_failure = NULL;
 914 int     recipients_count       = 0;
 915 BOOL    recipients_discarded   = FALSE;
 916 recipient_item  *recipients_list = NULL;
 917 int     recipients_list_max    = 0;
 918 int     recipients_max         = 0;
 919 BOOL    recipients_max_reject  = FALSE;
 920 const pcre *regex_AUTH         = NULL;
 921 const pcre *regex_check_dns_names = NULL;
 922 const pcre *regex_From         = NULL;
 923 const pcre *regex_IGNOREQUOTA  = NULL;
 924 const pcre *regex_PIPELINING   = NULL;
 925 const pcre *regex_SIZE         = NULL;
 926 const pcre *regex_smtp_code    = NULL;
 927 const pcre *regex_ismsgid      = NULL;
 928 #ifdef WITH_CONTENT_SCAN
 929 uschar *regex_match_string     = NULL;
 930 #endif
 931 int     remote_delivery_count  = 0;
 932 int     remote_max_parallel    = 2;
 933 uschar *remote_sort_domains    = NULL;
 934 int     retry_data_expire      = 7*24*60*60;
 935 int     retry_interval_max     = 24*60*60;
 936 int     retry_maximum_timeout  = 0;        /* set from retry config */
 937 retry_config  *retries         = NULL;
 938 uschar *return_path            = NULL;
 939 BOOL    return_path_remove     = TRUE;
 940 int     rewrite_existflags     = 0;
 941 uschar *rfc1413_hosts          = US"*";
 942 int     rfc1413_query_timeout  = 5;
 943 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 944 uid_t   root_uid               = ROOT_UID;
 945
 946 router_instance  *routers  = NULL;
 947 router_instance  router_defaults = {
 948     NULL,                      /* chain pointer */
 949     NULL,                      /* name */
 950     NULL,                      /* info */
 951     NULL,                      /* private options block pointer */
 952     NULL,                      /* driver name */
 953
 954     NULL,                      /* address_data */
 955 #ifdef EXPERIMENTAL_BRIGHTMAIL
 956     NULL,                      /* bmi_rule */
 957 #endif
 958     NULL,                      /* cannot_route_message */
 959     NULL,                      /* condition */
 960     NULL,                      /* current_directory */
 961     NULL,                      /* debug_string */
 962     NULL,                      /* domains */
 963     NULL,                      /* errors_to */
 964     NULL,                      /* expand_gid */
 965     NULL,                      /* expand_uid */
 966     NULL,                      /* expand_more */
 967     NULL,                      /* expand_unseen */
 968     NULL,                      /* extra_headers */
 969     NULL,                      /* fallback_hosts */
 970     NULL,                      /* home_directory */
 971     NULL,                      /* ignore_target_hosts */
 972     NULL,                      /* local_parts */
 973     NULL,                      /* pass_router_name */
 974     NULL,                      /* prefix */
 975     NULL,                      /* redirect_router_name */
 976     NULL,                      /* remove_headers */
 977     NULL,                      /* require_files */
 978     NULL,                      /* router_home_directory */
 979     US"freeze",                /* self */
 980     NULL,                      /* senders */
 981     NULL,                      /* suffix */
 982     NULL,                      /* translate_ip_address */
 983     NULL,                      /* transport_name */
 984
 985     TRUE,                      /* address_test */
 986 #ifdef EXPERIMENTAL_BRIGHTMAIL
 987     FALSE,                     /* bmi_deliver_alternate */
 988     FALSE,                     /* bmi_deliver_default */
 989     FALSE,                     /* bmi_dont_deliver */
 990 #endif
 991     TRUE,                      /* expn */
 992     FALSE,                     /* caseful_local_part */
 993     FALSE,                     /* check_local_user */
 994     FALSE,                     /* disable_logging */
 995     FALSE,                     /* fail_verify_recipient */
 996     FALSE,                     /* fail_verify_sender */
 997     FALSE,                     /* gid_set */
 998     FALSE,                     /* initgroups */
 999     TRUE_UNSET,                /* log_as_local */
1000     TRUE,                      /* more */
1001     FALSE,                     /* pass_on_timeout */
1002     FALSE,                     /* prefix_optional */
1003     TRUE,                      /* repeat_use */
1004     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1005     FALSE,                     /* same_domain_copy_routing */
1006     FALSE,                     /* self_rewrite */
1007     FALSE,                     /* suffix_optional */
1008     FALSE,                     /* verify_only */
1009     TRUE,                      /* verify_recipient */
1010     TRUE,                      /* verify_sender */
1011     FALSE,                     /* uid_set */
1012     FALSE,                     /* unseen */
1013
1014     self_freeze,               /* self_code */
1015     (uid_t)(-1),               /* uid */
1016     (gid_t)(-1),               /* gid */
1017
1018     NULL,                      /* fallback_hostlist */
1019     NULL,                      /* transport instance */
1020     NULL,                      /* pass_router */
1021     NULL                       /* redirect_router */
1022 };
1023
1024 ip_address_item *running_interfaces = NULL;
1025 BOOL    running_in_test_harness = FALSE;
1026
1027 /* This is a weird one. The following string gets patched in the binary by the
1028 script that sets up a copy of Exim for running in the test harness. It seems
1029 that compilers are now clever, and share constant strings if they can.
1030 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1031 make use of the end of this string in order to save space. So the patching then
1032 wrecks this. We defeat this optimization by adding some additional characters
1033 onto the end of the string. */
1034
1035 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1036
1037 int     runrc                  = 0;
1038
1039 uschar *search_error_message   = NULL;
1040 BOOL    search_find_defer      = FALSE;
1041 uschar *self_hostname          = NULL;
1042 uschar *sender_address         = NULL;
1043 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1044 uschar *sender_address_data    = NULL;
1045 BOOL    sender_address_forced  = FALSE;
1046 uschar *sender_address_unrewritten = NULL;
1047 uschar *sender_data            = NULL;
1048 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1049 uschar *sender_fullhost        = NULL;
1050 uschar *sender_helo_name       = NULL;
1051 uschar **sender_host_aliases   = &no_aliases;
1052 uschar *sender_host_address    = NULL;
1053 uschar *sender_host_authenticated = NULL;
1054 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1055 uschar *sender_host_name       = NULL;
1056 int     sender_host_port       = 0;
1057 BOOL    sender_host_notsocket  = FALSE;
1058 BOOL    sender_host_unknown    = FALSE;
1059 uschar *sender_ident           = NULL;
1060 BOOL    sender_local           = FALSE;
1061 BOOL    sender_name_forced     = FALSE;
1062 uschar *sender_rate            = NULL;
1063 uschar *sender_rate_limit      = NULL;
1064 uschar *sender_rate_period     = NULL;
1065 uschar *sender_rcvhost         = NULL;
1066 BOOL    sender_set_untrusted   = FALSE;
1067 uschar *sender_unqualified_hosts = NULL;
1068 uschar *sender_verify_failure = NULL;
1069 address_item *sender_verified_list  = NULL;
1070 address_item *sender_verified_failed = NULL;
1071 int     sender_verified_rc     = -1;
1072 BOOL    sender_verified_responded = FALSE;
1073 uschar *sending_ip_address     = NULL;
1074 int     sending_port           = -1;
1075 volatile  BOOL sigalrm_seen    = FALSE;
1076 uschar **sighup_argv           = NULL;
1077 int     smtp_accept_count      = 0;
1078 BOOL    smtp_accept_keepalive  = TRUE;
1079 int     smtp_accept_max        = 20;
1080 int     smtp_accept_max_nonmail= 10;
1081 uschar *smtp_accept_max_nonmail_hosts = US"*";
1082 int     smtp_accept_max_per_connection = 1000;
1083 uschar *smtp_accept_max_per_host = NULL;
1084 int     smtp_accept_queue      = 0;
1085 int     smtp_accept_queue_per_connection = 10;
1086 int     smtp_accept_reserve    = 0;
1087 uschar *smtp_active_hostname   = NULL;
1088 BOOL    smtp_authenticated     = FALSE;
1089 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1090                              "Exim $version_number $tod_full"
1091                              "\0<---------------Space to patch smtp_banner->";
1092 BOOL    smtp_batched_input     = FALSE;
1093 BOOL    smtp_check_spool_space = TRUE;
1094 int     smtp_ch_index          = 0;
1095 uschar *smtp_cmd_argument      = NULL;
1096 uschar *smtp_cmd_buffer        = NULL;
1097 time_t  smtp_connection_start  = 0;
1098 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1099 int     smtp_connect_backlog   = 20;
1100 double  smtp_delay_mail        = 0.0;
1101 double  smtp_delay_rcpt        = 0.0;
1102 BOOL    smtp_enforce_sync      = TRUE;
1103 FILE   *smtp_in                = NULL;
1104 BOOL    smtp_input             = FALSE;
1105 int     smtp_load_reserve      = -1;
1106 int     smtp_mailcmd_count     = 0;
1107 FILE   *smtp_out               = NULL;
1108 uschar *smtp_etrn_command      = NULL;
1109 BOOL    smtp_etrn_serialize    = TRUE;
1110 int     smtp_max_synprot_errors= 3;
1111 int     smtp_max_unknown_commands = 3;
1112 uschar *smtp_notquit_reason    = NULL;
1113 uschar *smtp_ratelimit_hosts   = NULL;
1114 uschar *smtp_ratelimit_mail    = NULL;
1115 uschar *smtp_ratelimit_rcpt    = NULL;
1116 uschar *smtp_read_error        = US"";
1117 int     smtp_receive_timeout   = 5*60;
1118 uschar *smtp_reserve_hosts     = NULL;
1119 BOOL    smtp_return_error_details = FALSE;
1120 int     smtp_rlm_base          = 0;
1121 double  smtp_rlm_factor        = 0.0;
1122 int     smtp_rlm_limit         = 0;
1123 int     smtp_rlm_threshold     = INT_MAX;
1124 int     smtp_rlr_base          = 0;
1125 double  smtp_rlr_factor        = 0.0;
1126 int     smtp_rlr_limit         = 0;
1127 int     smtp_rlr_threshold     = INT_MAX;
1128 BOOL    smtp_use_pipelining    = FALSE;
1129 BOOL    smtp_use_size          = FALSE;
1130
1131 #ifdef WITH_CONTENT_SCAN
1132 uschar *spamd_address          = US"127.0.0.1 783";
1133 uschar *spam_bar               = NULL;
1134 uschar *spam_report            = NULL;
1135 uschar *spam_score             = NULL;
1136 uschar *spam_score_int         = NULL;
1137 #endif
1138 #ifdef EXPERIMENTAL_SPF
1139 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1140 uschar *spf_header_comment     = NULL;
1141 uschar *spf_received           = NULL;
1142 uschar *spf_result             = NULL;
1143 uschar *spf_smtp_comment       = NULL;
1144 #endif
1145
1146 BOOL    split_spool_directory  = FALSE;
1147 uschar *spool_directory        = US SPOOL_DIRECTORY
1148                            "\0<--------------Space to patch spool_directory->";
1149 #ifdef EXPERIMENTAL_SRS
1150 uschar *srs_config             = NULL;
1151 uschar *srs_db_address         = NULL;
1152 uschar *srs_db_key             = NULL;
1153 int     srs_hashlength         = 6;
1154 int     srs_hashmin            = -1;
1155 int     srs_maxage             = 31;
1156 uschar *srs_orig_recipient     = NULL;
1157 uschar *srs_orig_sender        = NULL;
1158 uschar *srs_recipient          = NULL;
1159 uschar *srs_secrets            = NULL;
1160 uschar *srs_status             = NULL;
1161 BOOL    srs_usehash            = TRUE;
1162 BOOL    srs_usetimestamp       = TRUE;
1163 #endif
1164 BOOL    strict_acl_vars        = FALSE;
1165 int     string_datestamp_offset= -1;
1166 BOOL    strip_excess_angle_brackets = FALSE;
1167 BOOL    strip_trailing_dot     = FALSE;
1168 uschar *submission_domain      = NULL;
1169 BOOL    submission_mode        = FALSE;
1170 uschar *submission_name        = NULL;
1171 BOOL    suppress_local_fixups  = FALSE;
1172 BOOL    synchronous_delivery   = FALSE;
1173 BOOL    syslog_duplication     = TRUE;
1174 int     syslog_facility        = LOG_MAIL;
1175 uschar *syslog_processname     = US"exim";
1176 BOOL    syslog_timestamp       = TRUE;
1177 uschar *system_filter          = NULL;
1178
1179 uschar *system_filter_directory_transport = NULL;
1180 uschar *system_filter_file_transport = NULL;
1181 uschar *system_filter_pipe_transport = NULL;
1182 uschar *system_filter_reply_transport = NULL;
1183
1184 gid_t   system_filter_gid      = 0;
1185 BOOL    system_filter_gid_set  = FALSE;
1186 uid_t   system_filter_uid      = 0;
1187 BOOL    system_filter_uid_set  = FALSE;
1188 BOOL    system_filtering       = FALSE;
1189
1190 BOOL    tcp_nodelay            = TRUE;
1191 int     test_harness_load_avg  = 0;
1192 int     thismessage_size_limit = 0;
1193 int     timeout_frozen_after   = 0;
1194 BOOL    timestamps_utc         = FALSE;
1195
1196 transport_instance  *transports = NULL;
1197
1198 transport_instance  transport_defaults = {
1199     NULL,                     /* chain pointer */
1200     NULL,                     /* name */
1201     NULL,                     /* info */
1202     NULL,                     /* private options block pointer */
1203     NULL,                     /* driver name */
1204     NULL,                     /* setup entry point */
1205     1,                        /* batch_max */
1206     NULL,                     /* batch_id */
1207     NULL,                     /* home_dir */
1208     NULL,                     /* current_dir */
1209     TRUE,                     /* multi-domain */
1210     FALSE,                    /* overrides_hosts */
1211     100,                      /* max_addresses */
1212     500,                      /* connection_max_messages */
1213     FALSE,                    /* deliver_as_creator */
1214     FALSE,                    /* disable_logging */
1215     FALSE,                    /* initgroups */
1216     FALSE,                    /* uid_set */
1217     FALSE,                    /* gid_set */
1218     (uid_t)(-1),              /* uid */
1219     (gid_t)(-1),              /* gid */
1220     NULL,                     /* expand_uid */
1221     NULL,                     /* expand_gid */
1222     NULL,                     /* warn_message */
1223     NULL,                     /* shadow */
1224     NULL,                     /* shadow_condition */
1225     NULL,                     /* filter_command */
1226     NULL,                     /* add_headers */
1227     NULL,                     /* remove_headers */
1228     NULL,                     /* return_path */
1229     NULL,                     /* debug_string */
1230     NULL,                     /* message_size_limit */
1231     NULL,                     /* headers_rewrite */
1232     NULL,                     /* rewrite_rules */
1233     0,                        /* rewrite_existflags */
1234     300,                      /* filter_timeout */
1235     FALSE,                    /* body_only */
1236     FALSE,                    /* delivery_date_add */
1237     FALSE,                    /* envelope_to_add */
1238     FALSE,                    /* headers_only */
1239     FALSE,                    /* rcpt_include_affixes */
1240     FALSE,                    /* return_path_add */
1241     FALSE,                    /* return_output */
1242     FALSE,                    /* return_fail_output */
1243     FALSE,                    /* log_output */
1244     FALSE,                    /* log_fail_output */
1245     FALSE,                    /* log_defer_output */
1246     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1247                                  1 nor 0 so can detect unset */
1248 };
1249
1250 int     transport_count;
1251 uschar **transport_filter_argv  = NULL;
1252 int     transport_filter_timeout;
1253 BOOL    transport_filter_timed_out = FALSE;
1254 int     transport_write_timeout= 0;
1255
1256 tree_node  *tree_dns_fails     = NULL;
1257 tree_node  *tree_duplicates    = NULL;
1258 tree_node  *tree_nonrecipients = NULL;
1259 tree_node  *tree_unusable      = NULL;
1260
1261 BOOL    trusted_caller         = FALSE;
1262 gid_t  *trusted_groups         = NULL;
1263 uid_t  *trusted_users          = NULL;
1264 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1265
1266 uschar *unknown_login          = NULL;
1267 uschar *unknown_username       = NULL;
1268 uschar *untrusted_set_sender   = NULL;
1269
1270 /*  A regex for matching a "From_" line in an incoming message, in the form
1271
1272     From ph10 Fri Jan  5 12:35 GMT 1996
1273
1274 which  the "mail" commands send to the MTA (undocumented, of course), or in
1275 the  form
1276
1277     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1278
1279 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1280 Because  of variations in time formats, just match up to the minutes. That
1281 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1282 so  just require one digit for hours and minutes. The weekday is also absent
1283 in  some forms. */
1284
1285 uschar *uucp_from_pattern      = US
1286    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1287    "(?:"                                          /* Non-extracting bracket */
1288    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1289    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1290    ")"                                            /* End alternation */
1291    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1292
1293 uschar *uucp_from_sender       = US"$1";
1294
1295 uschar *warn_message_file      = NULL;
1296 uschar *warnmsg_delay          = NULL;
1297 uschar *warnmsg_recipients     = NULL;
1298 BOOL    write_rejectlog        = TRUE;
1299
1300 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1301 uschar *version_date           = US"?";
1302 uschar *version_cnumber        = US"????";
1303 uschar *version_string         = US"?";
1304
1305 int     warning_count          = 0;
1306
1307 /*  End of globals.c */