src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.74 2007/06/18 13:57:50 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "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 uschar *acl_not_smtp           = NULL;
 176 #ifdef WITH_CONTENT_SCAN
 177 uschar *acl_not_smtp_mime      = NULL;
 178 #endif
 179 uschar *acl_not_smtp_start     = NULL;
 180 uschar *acl_smtp_auth          = NULL;
 181 uschar *acl_smtp_connect       = NULL;
 182 uschar *acl_smtp_data          = NULL;
 183 uschar *acl_smtp_etrn          = NULL;
 184 uschar *acl_smtp_expn          = NULL;
 185 uschar *acl_smtp_helo          = NULL;
 186 uschar *acl_smtp_mail          = NULL;
 187 uschar *acl_smtp_mailauth      = NULL;
 188 #ifdef WITH_CONTENT_SCAN
 189 uschar *acl_smtp_mime          = NULL;
 190 #endif
 191 uschar *acl_smtp_predata       = NULL;
 192 uschar *acl_smtp_quit          = NULL;
 193 uschar *acl_smtp_rcpt          = NULL;
 194 uschar *acl_smtp_starttls      = NULL;
 195 uschar *acl_smtp_vrfy          = NULL;
 196 BOOL    acl_temp_details       = FALSE;
 197 tree_node *acl_var_c           = NULL;
 198 tree_node *acl_var_m           = NULL;
 199 uschar *acl_verify_message     = NULL;
 200 string_item *acl_warn_logged   = NULL;
 201
 202 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 203 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 204
 205 uschar *acl_wherenames[]       = { US"RCPT",
 206                                    US"MAIL",
 207                                    US"PREDATA",
 208                                    US"MIME",
 209                                    US"DATA",
 210                                    US"non-SMTP",
 211                                    US"AUTH",
 212                                    US"connection",
 213                                    US"ETRN",
 214                                    US"EXPN",
 215                                    US"EHLO or HELO",
 216                                    US"MAILAUTH",
 217                                    US"non-SMTP-start",
 218                                    US"QUIT",
 219                                    US"STARTTLS",
 220                                    US"VRFY"
 221                                  };
 222
 223 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 224                                    US"550",     /* MAIL */
 225                                    US"550",     /* PREDATA */
 226                                    US"550",     /* MIME */
 227                                    US"550",     /* DATA */
 228                                    US"0",       /* not SMTP; not relevant */
 229                                    US"503",     /* AUTH */
 230                                    US"550",     /* connect */
 231                                    US"458",     /* ETRN */
 232                                    US"550",     /* EXPN */
 233                                    US"550",     /* HELO/EHLO */
 234                                    US"0",       /* MAILAUTH; not relevant */
 235                                    US"0",       /* not SMTP; not relevant */
 236                                    US"0",       /* QUIT; not relevant */
 237                                    US"550",     /* STARTTLS */
 238                                    US"252"      /* VRFY */
 239                                  };
 240
 241 BOOL    active_local_from_check = FALSE;
 242 BOOL    active_local_sender_retain = FALSE;
 243 BOOL    accept_8bitmime        = FALSE;
 244 address_item  *addr_duplicate  = NULL;
 245
 246 address_item address_defaults = {
 247   NULL,                 /* next */
 248   NULL,                 /* parent */
 249   NULL,                 /* first */
 250   NULL,                 /* dupof */
 251   NULL,                 /* start_router */
 252   NULL,                 /* router */
 253   NULL,                 /* transport */
 254   NULL,                 /* host_list */
 255   NULL,                 /* host_used */
 256   NULL,                 /* fallback_hosts */
 257   NULL,                 /* reply */
 258   NULL,                 /* retries */
 259   NULL,                 /* address */
 260   NULL,                 /* unique */
 261   NULL,                 /* cc_local_part */
 262   NULL,                 /* lc_local_part */
 263   NULL,                 /* local_part */
 264   NULL,                 /* prefix */
 265   NULL,                 /* suffix */
 266   NULL,                 /* domain */
 267   NULL,                 /* address_retry_key */
 268   NULL,                 /* domain_retry_key */
 269   NULL,                 /* current_dir */
 270   NULL,                 /* home_dir */
 271   NULL,                 /* message */
 272   NULL,                 /* user_message */
 273   NULL,                 /* onetime_parent */
 274   NULL,                 /* pipe_expandn */
 275   NULL,                 /* return_filename */
 276   NULL,                 /* self_hostname */
 277   NULL,                 /* shadow_message */
 278   #ifdef SUPPORT_TLS
 279   NULL,                 /* cipher */
 280   NULL,                 /* peerdn */
 281   #endif
 282   (uid_t)(-1),          /* uid */
 283   (gid_t)(-1),          /* gid */
 284   0,                    /* flags */
 285   { 0 },                /* domain_cache - any larger array should be zeroed */
 286   { 0 },                /* localpart_cache - ditto */
 287   -1,                   /* mode */
 288   0,                    /* more_errno */
 289   ERRNO_UNKNOWNERROR,   /* basic_errno */
 290   0,                    /* child_count */
 291   -1,                   /* return_file */
 292   SPECIAL_NONE,         /* special_action */
 293   DEFER,                /* transport_return */
 294   {                     /* fields that are propagated to children */
 295     NULL,               /* address_data */
 296     NULL,               /* domain_data */
 297     NULL,               /* localpart_data */
 298     NULL,               /* errors_address */
 299     NULL,               /* extra_headers */
 300     NULL,               /* remove_headers */
 301 #ifdef EXPERIMENTAL_SRS
 302     NULL,               /* srs_sender */
 303 #endif
 304   }
 305 };
 306
 307 uschar *address_file           = NULL;
 308 uschar *address_pipe           = NULL;
 309 BOOL    address_test_mode      = FALSE;
 310 tree_node *addresslist_anchor  = NULL;
 311 int     addresslist_count      = 0;
 312 gid_t  *admin_groups           = NULL;
 313 BOOL    admin_user             = FALSE;
 314 BOOL    allow_auth_unadvertised= FALSE;
 315 BOOL    allow_domain_literals  = FALSE;
 316 BOOL    allow_mx_to_ip         = FALSE;
 317 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 318 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 319 BOOL    allow_utf8_domains     = FALSE;
 320 uschar *authenticated_id       = NULL;
 321 uschar *authenticated_sender   = NULL;
 322 BOOL    authentication_failed  = FALSE;
 323 auth_instance  *auths          = NULL;
 324 uschar *auth_advertise_hosts   = US"*";
 325 auth_instance auth_defaults    = {
 326     NULL,                      /* chain pointer */
 327     NULL,                      /* name */
 328     NULL,                      /* info */
 329     NULL,                      /* private options block pointer */
 330     NULL,                      /* driver_name */
 331     NULL,                      /* advertise_condition */
 332     NULL,                      /* client_condition */
 333     NULL,                      /* public_name */
 334     NULL,                      /* set_id */
 335     NULL,                      /* server_mail_auth_condition */
 336     NULL,                      /* server_debug_string */
 337     NULL,                      /* server_condition */
 338     FALSE,                     /* client */
 339     FALSE,                     /* server */
 340     FALSE                      /* advertised */
 341 };
 342
 343 uschar *auth_defer_msg         = US"reason not recorded";
 344 uschar *auth_defer_user_msg    = US"";
 345 uschar *auth_vars[AUTH_VARS];
 346 int     auto_thaw              = 0;
 347 #ifdef WITH_CONTENT_SCAN
 348 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 349 #endif
 350
 351 BOOL    background_daemon      = TRUE;
 352
 353 #if BASE_62 == 62
 354 uschar *base62_chars=
 355     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 356 #else
 357 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 358 #endif
 359
 360 uschar *bi_command             = NULL;
 361 uschar *big_buffer             = NULL;
 362 int     big_buffer_size        = BIG_BUFFER_SIZE;
 363 #ifdef EXPERIMENTAL_BRIGHTMAIL
 364 uschar *bmi_alt_location       = NULL;
 365 uschar *bmi_base64_tracker_verdict = NULL;
 366 uschar *bmi_base64_verdict     = NULL;
 367 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 368 int     bmi_deliver            = 1;
 369 int     bmi_run                = 0;
 370 uschar *bmi_verdicts           = NULL;
 371 #endif
 372 int     body_linecount         = 0;
 373 int     body_zerocount         = 0;
 374 uschar *bounce_message_file    = NULL;
 375 uschar *bounce_message_text    = NULL;
 376 uschar *bounce_recipient       = NULL;
 377 BOOL    bounce_return_body     = TRUE;
 378 BOOL    bounce_return_message  = TRUE;
 379 int     bounce_return_size_limit = 100*1024;
 380 uschar *bounce_sender_authentication = NULL;
 381 int     bsmtp_transaction_linecount = 0;
 382
 383 int     callout_cache_domain_positive_expire = 7*24*60*60;
 384 int     callout_cache_domain_negative_expire = 3*60*60;
 385 int     callout_cache_positive_expire = 24*60*60;
 386 int     callout_cache_negative_expire = 2*60*60;
 387 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 388 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 389 int     check_log_inodes       = 0;
 390 int     check_log_space        = 0;
 391 BOOL    check_rfc2047_length   = TRUE;
 392 int     check_spool_inodes     = 0;
 393 int     check_spool_space      = 0;
 394 int     clmacro_count          = 0;
 395 uschar *clmacros[MAX_CLMACROS];
 396 BOOL    config_changed         = FALSE;
 397 FILE   *config_file            = NULL;
 398 uschar *config_filename        = NULL;
 399 int     config_lineno          = 0;
 400 #ifdef CONFIGURE_GROUP
 401 gid_t   config_gid             = CONFIGURE_GROUP;
 402 #endif
 403 uschar *config_main_filelist   = US CONFIGURE_FILE
 404                          "\0<-----------Space to patch configure_filename->";
 405 uschar *config_main_filename   = NULL;
 406
 407 #ifdef CONFIGURE_OWNER
 408 uid_t   config_uid             = CONFIGURE_OWNER;
 409 #endif
 410
 411 int     connection_max_messages= -1;
 412 uschar *continue_hostname      = NULL;
 413 uschar *continue_host_address  = NULL;
 414 BOOL    continue_more          = FALSE;
 415 int     continue_sequence      = 1;
 416 uschar *continue_transport     = NULL;
 417
 418 uschar *csa_status             = NULL;
 419
 420 BOOL    daemon_listen          = FALSE;
 421 uschar *daemon_smtp_port       = US"smtp";
 422 int     daemon_startup_retries = 9;
 423 int     daemon_startup_sleep   = 30;
 424 BOOL    debug_daemon           = FALSE;
 425 int     debug_fd               = -1;
 426 FILE   *debug_file             = NULL;
 427 bit_table debug_options[]      = {
 428   { US"acl",            D_acl },
 429   { US"all",            D_all },
 430   { US"auth",           D_auth },
 431   { US"deliver",        D_deliver },
 432   { US"dns",            D_dns },
 433   { US"dnsbl",          D_dnsbl },
 434   { US"exec",           D_exec },
 435   { US"expand",         D_expand },
 436   { US"filter",         D_filter },
 437   { US"hints_lookup",   D_hints_lookup },
 438   { US"host_lookup",    D_host_lookup },
 439   { US"ident",          D_ident },
 440   { US"interface",      D_interface },
 441   { US"lists",          D_lists },
 442   { US"load",           D_load },
 443   { US"local_scan",     D_local_scan },
 444   { US"lookup",         D_lookup },
 445   { US"memory",         D_memory },
 446   { US"pid",            D_pid },
 447   { US"process_info",   D_process_info },
 448   { US"queue_run",      D_queue_run },
 449   { US"receive",        D_receive },
 450   { US"resolver",       D_resolver },
 451   { US"retry",          D_retry },
 452   { US"rewrite",        D_rewrite },
 453   { US"route",          D_route },
 454   { US"timestamp",      D_timestamp },
 455   { US"tls",            D_tls },
 456   { US"transport",      D_transport },
 457   { US"uid",            D_uid },
 458   { US"verify",         D_verify }
 459 };
 460 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 461 unsigned int debug_selector    = 0;
 462 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 463 uschar *delay_warning_condition=
 464   US"${if or {"
 465             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 466             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 467             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 468             "} {no}{yes}}";
 469 BOOL    delivery_date_remove   = TRUE;
 470 uschar *deliver_address_data   = NULL;
 471 int     deliver_datafile       = -1;
 472 uschar *deliver_domain         = NULL;
 473 uschar *deliver_domain_data    = NULL;
 474 uschar *deliver_domain_orig    = NULL;
 475 uschar *deliver_domain_parent  = NULL;
 476 BOOL    deliver_drop_privilege = FALSE;
 477 BOOL    deliver_firsttime      = FALSE;
 478 BOOL    deliver_force          = FALSE;
 479 BOOL    deliver_freeze         = FALSE;
 480 int     deliver_frozen_at      = 0;
 481 uschar *deliver_home           = NULL;
 482 uschar *deliver_host           = NULL;
 483 uschar *deliver_host_address   = NULL;
 484 uschar *deliver_in_buffer      = NULL;
 485 ino_t   deliver_inode          = 0;
 486 uschar *deliver_localpart      = NULL;
 487 uschar *deliver_localpart_data = NULL;
 488 uschar *deliver_localpart_orig = NULL;
 489 uschar *deliver_localpart_parent = NULL;
 490 uschar *deliver_localpart_prefix = NULL;
 491 uschar *deliver_localpart_suffix = NULL;
 492 BOOL    deliver_force_thaw     = FALSE;
 493 BOOL    deliver_manual_thaw    = FALSE;
 494 uschar *deliver_out_buffer     = NULL;
 495 int     deliver_queue_load_max = -1;
 496 address_item  *deliver_recipients = NULL;
 497 uschar *deliver_selectstring   = NULL;
 498 BOOL    deliver_selectstring_regex = FALSE;
 499 uschar *deliver_selectstring_sender = NULL;
 500 BOOL    deliver_selectstring_sender_regex = FALSE;
 501 #ifdef WITH_OLD_DEMIME
 502 int     demime_errorlevel      = 0;
 503 int     demime_ok              = 0;
 504 uschar *demime_reason          = NULL;
 505 #endif
 506 BOOL    disable_callout_flush  = FALSE;
 507 BOOL    disable_delay_flush    = FALSE;
 508 #ifdef ENABLE_DISABLE_FSYNC
 509 BOOL    disable_fsync          = FALSE;
 510 #endif
 511 BOOL    disable_ipv6           = FALSE;
 512 BOOL    disable_logging        = FALSE;
 513
 514 #ifdef EXPERIMENTAL_DOMAINKEYS
 515 uschar *dk_signing_domain      = NULL;
 516 uschar *dk_signing_selector    = NULL;
 517 int     dk_do_verify           = 0;
 518 #endif
 519
 520 uschar *dns_again_means_nonexist = NULL;
 521 int     dns_csa_search_limit   = 5;
 522 BOOL    dns_csa_use_reverse    = TRUE;
 523 uschar *dns_ipv4_lookup        = NULL;
 524 int     dns_retrans            = 0;
 525 int     dns_retry              = 0;
 526 uschar *dnslist_domain         = NULL;
 527 uschar *dnslist_matched        = NULL;
 528 uschar *dnslist_text           = NULL;
 529 uschar *dnslist_value          = NULL;
 530 tree_node *domainlist_anchor   = NULL;
 531 int     domainlist_count       = 0;
 532 BOOL    dont_deliver           = FALSE;
 533 BOOL    dot_ends               = TRUE;
 534 BOOL    drop_cr                = FALSE;         /* No longer used */
 535 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 536
 537 BOOL    enable_dollar_recipients = FALSE;
 538 BOOL    envelope_to_remove     = TRUE;
 539 int     errno_quota            = ERRNO_QUOTA;
 540 uschar *errors_copy            = NULL;
 541 int     error_handling         = ERRORS_SENDER;
 542 uschar *errors_reply_to        = NULL;
 543 int     errors_sender_rc       = EXIT_FAILURE;
 544
 545 gid_t   exim_gid               = EXIM_GID;
 546 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 547 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 548                         "\0<---------------Space to patch exim_path->";
 549 uid_t   exim_uid               = EXIM_UID;
 550 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 551 int     expand_forbid          = 0;
 552 int     expand_nlength[EXPAND_MAXN+1];
 553 int     expand_nmax            = -1;
 554 uschar *expand_nstring[EXPAND_MAXN+1];
 555 BOOL    expand_string_forcedfail = FALSE;
 556 uschar *expand_string_message;
 557 BOOL    extract_addresses_remove_arguments = TRUE;
 558 uschar *extra_local_interfaces = NULL;
 559
 560 int     fake_response          = OK;
 561 uschar *fake_response_text     = US"Your message has been rejected but is "
 562                                    "being kept for evaluation.\nIf it was a "
 563                                    "legitimate message, it may still be "
 564                                    "delivered to the target recipient(s).";
 565 int     filter_n[FILTER_VARIABLE_COUNT];
 566 BOOL    filter_running         = FALSE;
 567 int     filter_sn[FILTER_VARIABLE_COUNT];
 568 int     filter_test            = FTEST_NONE;
 569 uschar *filter_test_sfile      = NULL;
 570 uschar *filter_test_ufile      = NULL;
 571 uschar *filter_thisaddress     = NULL;
 572 int     finduser_retries       = 0;
 573 #ifdef WITH_OLD_DEMIME
 574 uschar *found_extension        = NULL;
 575 #endif
 576 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 577 uschar *freeze_tell            = NULL;
 578 uschar *freeze_tell_config     = NULL;
 579 uschar *fudged_queue_times     = US"";
 580
 581 uschar *gecos_name             = NULL;
 582 uschar *gecos_pattern          = NULL;
 583 rewrite_rule  *global_rewrite_rules = NULL;
 584
 585 uschar *headers_charset        = US HEADERS_CHARSET;
 586 int     header_insert_maxlen   = 64 * 1024;
 587 header_line  *header_last      = NULL;
 588 header_line  *header_list      = NULL;
 589 int     header_maxsize         = HEADER_MAXSIZE;
 590 int     header_line_maxsize    = 0;
 591
 592 header_name header_names[] = {
 593   { US"bcc",            3, TRUE,  htype_bcc },
 594   { US"cc",             2, TRUE,  htype_cc },
 595   { US"date",           4, TRUE,  htype_date },
 596   { US"delivery-date", 13, FALSE, htype_delivery_date },
 597   { US"envelope-to",   11, FALSE, htype_envelope_to },
 598   { US"from",           4, TRUE,  htype_from },
 599   { US"message-id",    10, TRUE,  htype_id },
 600   { US"received",       8, FALSE, htype_received },
 601   { US"reply-to",       8, FALSE, htype_reply_to },
 602   { US"return-path",   11, FALSE, htype_return_path },
 603   { US"sender",         6, TRUE,  htype_sender },
 604   { US"subject",        7, FALSE, htype_subject },
 605   { US"to",             2, TRUE,  htype_to }
 606 };
 607
 608 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 609
 610 BOOL    header_rewritten       = FALSE;
 611 uschar *helo_accept_junk_hosts = NULL;
 612 uschar *helo_allow_chars       = US"";
 613 uschar *helo_lookup_domains    = US"@ : @[]";
 614 uschar *helo_try_verify_hosts  = NULL;
 615 BOOL    helo_verified          = FALSE;
 616 BOOL    helo_verify_failed     = FALSE;
 617 uschar *helo_verify_hosts      = NULL;
 618 uschar *hex_digits             = US"0123456789abcdef";
 619 uschar *hold_domains           = NULL;
 620 BOOL    host_checking          = FALSE;
 621 BOOL    host_checking_callout  = FALSE;
 622 uschar *host_data              = NULL;
 623 BOOL    host_find_failed_syntax= FALSE;
 624 uschar *host_lookup            = NULL;
 625 BOOL    host_lookup_deferred   = FALSE;
 626 BOOL    host_lookup_failed     = FALSE;
 627 uschar *host_lookup_order      = US"bydns:byaddr";
 628 uschar *host_lookup_msg        = US"";
 629 int     host_number            = 0;
 630 uschar *host_number_string     = NULL;
 631 uschar *host_reject_connection = NULL;
 632 tree_node *hostlist_anchor     = NULL;
 633 int     hostlist_count         = 0;
 634 uschar *hosts_treat_as_local   = NULL;
 635 uschar *hosts_connection_nolog = NULL;
 636
 637 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 638 BOOL    ignore_fromline_local  = FALSE;
 639 uschar *ignore_fromline_hosts  = NULL;
 640 uschar *interface_address      = NULL;
 641 int     interface_port         = -1;
 642 BOOL    is_inetd               = FALSE;
 643 uschar *iterate_item           = NULL;
 644
 645 int     journal_fd             = -1;
 646
 647 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 648
 649 uschar *eldap_dn               = NULL;
 650 int     load_average           = -2;
 651 BOOL    local_error_message    = FALSE;
 652 BOOL    local_from_check       = TRUE;
 653 uschar *local_from_prefix      = NULL;
 654 uschar *local_from_suffix      = NULL;
 655
 656 #if HAVE_IPV6
 657 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 658 #else
 659 uschar *local_interfaces       = US"0.0.0.0";
 660 #endif
 661
 662 uschar *local_scan_data        = NULL;
 663 int     local_scan_timeout     = 5*60;
 664 BOOL    local_sender_retain    = FALSE;
 665 gid_t   local_user_gid         = (gid_t)(-1);
 666 uid_t   local_user_uid         = (uid_t)(-1);
 667
 668 tree_node *localpartlist_anchor= NULL;
 669 int     localpartlist_count    = 0;
 670 uschar *log_buffer             = NULL;
 671 unsigned int log_extra_selector = LX_default;
 672 uschar *log_file_path          = US LOG_FILE_PATH
 673                            "\0<--------------Space to patch log_file_path->";
 674
 675 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 676 are the ones that get put into log_write_selector. They can be used in calls to
 677 log_write() to test for the bit. The options with LX_xxx identifiers have
 678 values greater than 0x80000000 and are put int log_extra_selector (without the
 679 top bit). They are never used in calls to log_write(), but are tested
 680 independently. This separation became necessary when the number of log
 681 selectors was getting close to filling a 32-bit word. */
 682
 683 /* Note that this list must be in alphabetical order. */
 684
 685 bit_table log_options[]        = {
 686   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 687   { US"address_rewrite",              L_address_rewrite },
 688   { US"all",                          L_all },
 689   { US"all_parents",                  L_all_parents },
 690   { US"arguments",                    LX_arguments },
 691   { US"connection_reject",            L_connection_reject },
 692   { US"delay_delivery",               L_delay_delivery },
 693   { US"deliver_time",                 LX_deliver_time },
 694   { US"delivery_size",                LX_delivery_size },
 695   { US"dnslist_defer",                L_dnslist_defer },
 696   { US"etrn",                         L_etrn },
 697   { US"host_lookup_failed",           L_host_lookup_failed },
 698   { US"ident_timeout",                LX_ident_timeout },
 699   { US"incoming_interface",           LX_incoming_interface },
 700   { US"incoming_port",                LX_incoming_port },
 701   { US"lost_incoming_connection",     L_lost_incoming_connection },
 702   { US"outgoing_port",                LX_outgoing_port },
 703   { US"pid",                          LX_pid },
 704   { US"queue_run",                    L_queue_run },
 705   { US"queue_time",                   LX_queue_time },
 706   { US"queue_time_overall",           LX_queue_time_overall },
 707   { US"received_recipients",          LX_received_recipients },
 708   { US"received_sender",              LX_received_sender },
 709   { US"rejected_header",              LX_rejected_header },
 710   { US"rejected_headers",             LX_rejected_header },
 711   { US"retry_defer",                  L_retry_defer },
 712   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 713   { US"sender_on_delivery",           LX_sender_on_delivery },
 714   { US"sender_verify_fail",           LX_sender_verify_fail },
 715   { US"size_reject",                  L_size_reject },
 716   { US"skip_delivery",                L_skip_delivery },
 717   { US"smtp_confirmation",            LX_smtp_confirmation },
 718   { US"smtp_connection",              L_smtp_connection },
 719   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 720   { US"smtp_no_mail",                 LX_smtp_no_mail },
 721   { US"smtp_protocol_error",          L_smtp_protocol_error },
 722   { US"smtp_syntax_error",            L_smtp_syntax_error },
 723   { US"subject",                      LX_subject },
 724   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 725   { US"tls_cipher",                   LX_tls_cipher },
 726   { US"tls_peerdn",                   LX_tls_peerdn },
 727   { US"unknown_in_list",              LX_unknown_in_list }
 728 };
 729
 730 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 731 int     log_reject_target      = 0;
 732 uschar *log_selector_string    = NULL;
 733 FILE   *log_stderr             = NULL;
 734 BOOL    log_testing_mode       = FALSE;
 735 BOOL    log_timezone           = FALSE;
 736 unsigned int log_write_selector= L_default;
 737 uschar *login_sender_address   = NULL;
 738 int     lookup_open_max        = 25;
 739 uschar *lookup_value           = NULL;
 740
 741 macro_item  *macros            = NULL;
 742 uschar *mailstore_basename     = NULL;
 743 #ifdef WITH_CONTENT_SCAN
 744 uschar *malware_name           = NULL;  /* Virus Name */
 745 #endif
 746 int     max_username_length    = 0;
 747 int     message_age            = 0;
 748 uschar *message_body           = NULL;
 749 uschar *message_body_end       = NULL;
 750 int     message_body_size      = 0;
 751 int     message_body_visible   = 500;
 752 int     message_ended          = END_NOTSTARTED;
 753 uschar *message_headers        = NULL;
 754 uschar *message_id;
 755 uschar *message_id_domain      = NULL;
 756 uschar *message_id_text        = NULL;
 757 struct timeval message_id_tv   = { 0, 0 };
 758 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 759 uschar *message_id_external;
 760 int     message_linecount      = 0;
 761 BOOL    message_logs           = TRUE;
 762 int     message_size           = 0;
 763 uschar *message_size_limit     = US"50M";
 764 uschar  message_subdir[2]      = { 0, 0 };
 765 uschar *message_reference      = NULL;
 766
 767 /* MIME ACL expandables */
 768 #ifdef WITH_CONTENT_SCAN
 769 int     mime_anomaly_level     = 0;
 770 uschar *mime_anomaly_text      = NULL;
 771 uschar *mime_boundary          = NULL;
 772 uschar *mime_charset           = NULL;
 773 uschar *mime_content_description = NULL;
 774 uschar *mime_content_disposition = NULL;
 775 uschar *mime_content_id        = NULL;
 776 unsigned int mime_content_size = 0;
 777 uschar *mime_content_transfer_encoding = NULL;
 778 uschar *mime_content_type      = NULL;
 779 uschar *mime_decoded_filename  = NULL;
 780 uschar *mime_filename          = NULL;
 781 int     mime_is_multipart      = 0;
 782 int     mime_is_coverletter    = 0;
 783 int     mime_is_rfc822         = 0;
 784 int     mime_part_count        = -1;
 785 #endif
 786
 787 BOOL    mua_wrapper            = FALSE;
 788
 789 uid_t  *never_users            = NULL;
 790 #ifdef WITH_CONTENT_SCAN
 791 BOOL    no_mbox_unspool        = FALSE;
 792 #endif
 793 BOOL    no_multiline_responses = FALSE;
 794
 795 uid_t   original_euid;
 796 gid_t   originator_gid;
 797 uschar *originator_login       = NULL;
 798 uschar *originator_name        = NULL;
 799 uid_t   originator_uid;
 800 uschar *override_local_interfaces = NULL;
 801 uschar *override_pid_file_path = NULL;
 802
 803 BOOL    parse_allow_group      = FALSE;
 804 BOOL    parse_found_group      = FALSE;
 805 uschar *percent_hack_domains   = NULL;
 806 uschar *pid_file_path          = US PID_FILE_PATH
 807                            "\0<--------------Space to patch pid_file_path->";
 808 BOOL    pipelining_enable      = TRUE;
 809 uschar *pipelining_advertise_hosts = US"*";
 810 BOOL    preserve_message_logs  = FALSE;
 811 uschar *primary_hostname       = NULL;
 812 BOOL    print_topbitchars      = FALSE;
 813 uschar  process_info[PROCESS_INFO_SIZE];
 814 uschar *process_log_path       = NULL;
 815 BOOL    prod_requires_admin    = TRUE;
 816 uschar *prvscheck_address      = NULL;
 817 uschar *prvscheck_keynum       = NULL;
 818 uschar *prvscheck_result       = NULL;
 819
 820
 821 uschar *qualify_domain_recipient = NULL;
 822 uschar *qualify_domain_sender  = NULL;
 823 BOOL    queue_2stage           = FALSE;
 824 uschar *queue_domains          = NULL;
 825 int     queue_interval         = -1;
 826 BOOL    queue_list_requires_admin = TRUE;
 827 BOOL    queue_only             = FALSE;
 828 uschar *queue_only_file        = NULL;
 829 int     queue_only_load        = -1;
 830 BOOL    queue_only_override    = TRUE;
 831 BOOL    queue_only_policy      = FALSE;
 832 BOOL    queue_run_first_delivery = FALSE;
 833 BOOL    queue_run_force        = FALSE;
 834 BOOL    queue_run_in_order     = FALSE;
 835 BOOL    queue_run_local        = FALSE;
 836 int     queue_run_max          = 5;
 837 pid_t   queue_run_pid          = (pid_t)0;
 838 int     queue_run_pipe         = -1;
 839 BOOL    queue_running          = FALSE;
 840 BOOL    queue_smtp             = FALSE;
 841 uschar *queue_smtp_domains     = NULL;
 842
 843 unsigned int random_seed       = 0;
 844 tree_node *ratelimiters_cmd    = NULL;
 845 tree_node *ratelimiters_conn   = NULL;
 846 tree_node *ratelimiters_mail   = NULL;
 847 uschar *raw_active_hostname    = NULL;
 848 uschar *raw_sender             = NULL;
 849 uschar **raw_recipients        = NULL;
 850 int     raw_recipients_count   = 0;
 851
 852 int     rcpt_count             = 0;
 853 int     rcpt_fail_count        = 0;
 854 int     rcpt_defer_count       = 0;
 855 gid_t   real_gid;
 856 uid_t   real_uid;
 857 BOOL    really_exim            = TRUE;
 858 BOOL    receive_call_bombout   = FALSE;
 859 int     receive_linecount      = 0;
 860 int     receive_messagecount   = 0;
 861 int     receive_timeout        = 0;
 862 int     received_count         = 0;
 863 uschar *received_for           = NULL;
 864
 865 /*  This is the default text for Received headers generated by Exim. The
 866 date  will be automatically added on the end. */
 867
 868 uschar *received_header_text   = US
 869      "Received: "
 870      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 871      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 872      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 873      "by $primary_hostname "
 874      "${if def:received_protocol {with $received_protocol}} "
 875      #ifdef SUPPORT_TLS
 876      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 877      #endif
 878      "(Exim $version_number)\n\t"
 879      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 880      "id $message_exim_id"
 881      "${if def:received_for {\n\tfor $received_for}}"
 882      "\0<---------------Space to patch received_header_text->";
 883
 884 int     received_headers_max   = 30;
 885 uschar *received_protocol      = NULL;
 886 int     received_time          = 0;
 887 uschar *recipient_data         = NULL;
 888 uschar *recipient_unqualified_hosts = NULL;
 889 uschar *recipient_verify_failure = NULL;
 890 int     recipients_count       = 0;
 891 BOOL    recipients_discarded   = FALSE;
 892 recipient_item  *recipients_list = NULL;
 893 int     recipients_list_max    = 0;
 894 int     recipients_max         = 0;
 895 BOOL    recipients_max_reject  = FALSE;
 896 const pcre *regex_AUTH         = NULL;
 897 const pcre *regex_check_dns_names = NULL;
 898 const pcre *regex_From         = NULL;
 899 const pcre *regex_IGNOREQUOTA  = NULL;
 900 const pcre *regex_PIPELINING   = NULL;
 901 const pcre *regex_SIZE         = NULL;
 902 const pcre *regex_smtp_code    = NULL;
 903 const pcre *regex_ismsgid      = NULL;
 904 #ifdef WITH_CONTENT_SCAN
 905 uschar *regex_match_string     = NULL;
 906 #endif
 907 int     remote_delivery_count  = 0;
 908 int     remote_max_parallel    = 2;
 909 uschar *remote_sort_domains    = NULL;
 910 int     retry_data_expire      = 7*24*60*60;
 911 int     retry_interval_max     = 24*60*60;
 912 int     retry_maximum_timeout  = 0;        /* set from retry config */
 913 retry_config  *retries         = NULL;
 914 uschar *return_path            = NULL;
 915 BOOL    return_path_remove     = TRUE;
 916 int     rewrite_existflags     = 0;
 917 uschar *rfc1413_hosts          = US"*";
 918 int     rfc1413_query_timeout  = 5;
 919 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 920 uid_t   root_uid               = ROOT_UID;
 921
 922 router_instance  *routers  = NULL;
 923 router_instance  router_defaults = {
 924     NULL,                      /* chain pointer */
 925     NULL,                      /* name */
 926     NULL,                      /* info */
 927     NULL,                      /* private options block pointer */
 928     NULL,                      /* driver name */
 929
 930     NULL,                      /* address_data */
 931 #ifdef EXPERIMENTAL_BRIGHTMAIL
 932     NULL,                      /* bmi_rule */
 933 #endif
 934     NULL,                      /* cannot_route_message */
 935     NULL,                      /* condition */
 936     NULL,                      /* current_directory */
 937     NULL,                      /* debug_string */
 938     NULL,                      /* domains */
 939     NULL,                      /* errors_to */
 940     NULL,                      /* expand_gid */
 941     NULL,                      /* expand_uid */
 942     NULL,                      /* expand_more */
 943     NULL,                      /* expand_unseen */
 944     NULL,                      /* extra_headers */
 945     NULL,                      /* fallback_hosts */
 946     NULL,                      /* home_directory */
 947     NULL,                      /* ignore_target_hosts */
 948     NULL,                      /* local_parts */
 949     NULL,                      /* pass_router_name */
 950     NULL,                      /* prefix */
 951     NULL,                      /* redirect_router_name */
 952     NULL,                      /* remove_headers */
 953     NULL,                      /* require_files */
 954     NULL,                      /* router_home_directory */
 955     US"freeze",                /* self */
 956     NULL,                      /* senders */
 957     NULL,                      /* suffix */
 958     NULL,                      /* translate_ip_address */
 959     NULL,                      /* transport_name */
 960
 961     TRUE,                      /* address_test */
 962 #ifdef EXPERIMENTAL_BRIGHTMAIL
 963     FALSE,                     /* bmi_deliver_alternate */
 964     FALSE,                     /* bmi_deliver_default */
 965     FALSE,                     /* bmi_dont_deliver */
 966 #endif
 967     TRUE,                      /* expn */
 968     FALSE,                     /* caseful_local_part */
 969     FALSE,                     /* check_local_user */
 970     FALSE,                     /* disable_logging */
 971     FALSE,                     /* fail_verify_recipient */
 972     FALSE,                     /* fail_verify_sender */
 973     FALSE,                     /* gid_set */
 974     FALSE,                     /* initgroups */
 975     TRUE_UNSET,                /* log_as_local */
 976     TRUE,                      /* more */
 977     FALSE,                     /* pass_on_timeout */
 978     FALSE,                     /* prefix_optional */
 979     TRUE,                      /* repeat_use */
 980     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 981     FALSE,                     /* same_domain_copy_routing */
 982     FALSE,                     /* self_rewrite */
 983     FALSE,                     /* suffix_optional */
 984     FALSE,                     /* verify_only */
 985     TRUE,                      /* verify_recipient */
 986     TRUE,                      /* verify_sender */
 987     FALSE,                     /* uid_set */
 988     FALSE,                     /* unseen */
 989
 990     self_freeze,               /* self_code */
 991     (uid_t)(-1),               /* uid */
 992     (gid_t)(-1),               /* gid */
 993
 994     NULL,                      /* fallback_hostlist */
 995     NULL,                      /* transport instance */
 996     NULL,                      /* pass_router */
 997     NULL                       /* redirect_router */
 998 };
 999
1000 ip_address_item *running_interfaces = NULL;
1001 BOOL    running_in_test_harness = FALSE;
1002
1003 /* This is a weird one. The following string gets patched in the binary by the
1004 script that sets up a copy of Exim for running in the test harness. It seems
1005 that compilers are now clever, and share constant strings if they can.
1006 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1007 make use of the end of this string in order to save space. So the patching then
1008 wrecks this. We default this optimization by adding some additional characters
1009 onto the end of the string. */
1010
1011 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1012
1013 int     runrc                  = 0;
1014
1015 uschar *search_error_message   = NULL;
1016 BOOL    search_find_defer      = FALSE;
1017 uschar *self_hostname          = NULL;
1018 uschar *sender_address         = NULL;
1019 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1020 uschar *sender_address_data    = NULL;
1021 BOOL    sender_address_forced  = FALSE;
1022 uschar *sender_address_unrewritten = NULL;
1023 uschar *sender_data            = NULL;
1024 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1025 uschar *sender_fullhost        = NULL;
1026 uschar *sender_helo_name       = NULL;
1027 uschar **sender_host_aliases   = &no_aliases;
1028 uschar *sender_host_address    = NULL;
1029 uschar *sender_host_authenticated = NULL;
1030 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1031 uschar *sender_host_name       = NULL;
1032 int     sender_host_port       = 0;
1033 BOOL    sender_host_notsocket  = FALSE;
1034 BOOL    sender_host_unknown    = FALSE;
1035 uschar *sender_ident           = NULL;
1036 BOOL    sender_local           = FALSE;
1037 BOOL    sender_name_forced     = FALSE;
1038 uschar *sender_rate            = NULL;
1039 uschar *sender_rate_limit      = NULL;
1040 uschar *sender_rate_period     = NULL;
1041 uschar *sender_rcvhost         = NULL;
1042 BOOL    sender_set_untrusted   = FALSE;
1043 uschar *sender_unqualified_hosts = NULL;
1044 uschar *sender_verify_failure = NULL;
1045 address_item *sender_verified_list  = NULL;
1046 address_item *sender_verified_failed = NULL;
1047 int     sender_verified_rc     = -1;
1048 BOOL    sender_verified_responded = FALSE;
1049 uschar *sending_ip_address     = NULL;
1050 int     sending_port           = -1;
1051 volatile  BOOL sigalrm_seen    = FALSE;
1052 uschar **sighup_argv           = NULL;
1053 int     smtp_accept_count      = 0;
1054 BOOL    smtp_accept_keepalive  = TRUE;
1055 int     smtp_accept_max        = 20;
1056 int     smtp_accept_max_nonmail= 10;
1057 uschar *smtp_accept_max_nonmail_hosts = US"*";
1058 int     smtp_accept_max_per_connection = 1000;
1059 uschar *smtp_accept_max_per_host = NULL;
1060 int     smtp_accept_queue      = 0;
1061 int     smtp_accept_queue_per_connection = 10;
1062 int     smtp_accept_reserve    = 0;
1063 uschar *smtp_active_hostname   = NULL;
1064 BOOL    smtp_authenticated     = FALSE;
1065 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1066                              "Exim $version_number $tod_full"
1067                              "\0<---------------Space to patch smtp_banner->";
1068 BOOL    smtp_batched_input     = FALSE;
1069 BOOL    smtp_check_spool_space = TRUE;
1070 int     smtp_ch_index          = 0;
1071 uschar *smtp_cmd_argument      = NULL;
1072 uschar *smtp_cmd_buffer        = NULL;
1073 time_t  smtp_connection_start  = 0;
1074 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1075 int     smtp_connect_backlog   = 20;
1076 double  smtp_delay_mail        = 0.0;
1077 double  smtp_delay_rcpt        = 0.0;
1078 BOOL    smtp_enforce_sync      = TRUE;
1079 FILE   *smtp_in                = NULL;
1080 BOOL    smtp_input             = FALSE;
1081 int     smtp_load_reserve      = -1;
1082 int     smtp_mailcmd_count     = 0;
1083 FILE   *smtp_out               = NULL;
1084 uschar *smtp_etrn_command      = NULL;
1085 BOOL    smtp_etrn_serialize    = TRUE;
1086 int     smtp_max_synprot_errors= 3;
1087 int     smtp_max_unknown_commands = 3;
1088 uschar *smtp_ratelimit_hosts   = NULL;
1089 uschar *smtp_ratelimit_mail    = NULL;
1090 uschar *smtp_ratelimit_rcpt    = NULL;
1091 uschar *smtp_read_error        = US"";
1092 int     smtp_receive_timeout   = 5*60;
1093 uschar *smtp_reserve_hosts     = NULL;
1094 BOOL    smtp_return_error_details = FALSE;
1095 int     smtp_rlm_base          = 0;
1096 double  smtp_rlm_factor        = 0.0;
1097 int     smtp_rlm_limit         = 0;
1098 int     smtp_rlm_threshold     = INT_MAX;
1099 int     smtp_rlr_base          = 0;
1100 double  smtp_rlr_factor        = 0.0;
1101 int     smtp_rlr_limit         = 0;
1102 int     smtp_rlr_threshold     = INT_MAX;
1103 BOOL    smtp_use_pipelining    = FALSE;
1104 BOOL    smtp_use_size          = FALSE;
1105
1106 #ifdef WITH_CONTENT_SCAN
1107 uschar *spamd_address          = US"127.0.0.1 783";
1108 uschar *spam_bar               = NULL;
1109 uschar *spam_report            = NULL;
1110 uschar *spam_score             = NULL;
1111 uschar *spam_score_int         = NULL;
1112 #endif
1113 #ifdef EXPERIMENTAL_SPF
1114 uschar *spf_header_comment     = NULL;
1115 uschar *spf_received           = NULL;
1116 uschar *spf_result             = NULL;
1117 uschar *spf_smtp_comment       = NULL;
1118 #endif
1119
1120 BOOL    split_spool_directory  = FALSE;
1121 uschar *spool_directory        = US SPOOL_DIRECTORY
1122                            "\0<--------------Space to patch spool_directory->";
1123 #ifdef EXPERIMENTAL_SRS
1124 uschar *srs_config             = NULL;
1125 uschar *srs_db_address         = NULL;
1126 uschar *srs_db_key             = NULL;
1127 int     srs_hashlength         = 6;
1128 int     srs_hashmin            = -1;
1129 int     srs_maxage             = 31;
1130 uschar *srs_orig_recipient     = NULL;
1131 uschar *srs_orig_sender        = NULL;
1132 uschar *srs_recipient          = NULL;
1133 uschar *srs_secrets            = NULL;
1134 uschar *srs_status             = NULL;
1135 BOOL    srs_usehash            = TRUE;
1136 BOOL    srs_usetimestamp       = TRUE;
1137 #endif
1138 BOOL    strict_acl_vars        = FALSE;
1139 int     string_datestamp_offset= -1;
1140 BOOL    strip_excess_angle_brackets = FALSE;
1141 BOOL    strip_trailing_dot     = FALSE;
1142 uschar *submission_domain      = NULL;
1143 BOOL    submission_mode        = FALSE;
1144 uschar *submission_name        = NULL;
1145 BOOL    suppress_local_fixups  = FALSE;
1146 BOOL    synchronous_delivery   = FALSE;
1147 BOOL    syslog_duplication     = TRUE;
1148 int     syslog_facility        = LOG_MAIL;
1149 uschar *syslog_processname     = US"exim";
1150 BOOL    syslog_timestamp       = TRUE;
1151 uschar *system_filter          = NULL;
1152
1153 uschar *system_filter_directory_transport = NULL;
1154 uschar *system_filter_file_transport = NULL;
1155 uschar *system_filter_pipe_transport = NULL;
1156 uschar *system_filter_reply_transport = NULL;
1157
1158 gid_t   system_filter_gid      = 0;
1159 BOOL    system_filter_gid_set  = FALSE;
1160 uid_t   system_filter_uid      = 0;
1161 BOOL    system_filter_uid_set  = FALSE;
1162 BOOL    system_filtering       = FALSE;
1163
1164 BOOL    tcp_nodelay            = TRUE;
1165 int     thismessage_size_limit = 0;
1166 int     timeout_frozen_after   = 0;
1167 BOOL    timestamps_utc         = FALSE;
1168
1169 transport_instance  *transports = NULL;
1170
1171 transport_instance  transport_defaults = {
1172     NULL,                     /* chain pointer */
1173     NULL,                     /* name */
1174     NULL,                     /* info */
1175     NULL,                     /* private options block pointer */
1176     NULL,                     /* driver name */
1177     NULL,                     /* setup entry point */
1178     1,                        /* batch_max */
1179     NULL,                     /* batch_id */
1180     NULL,                     /* home_dir */
1181     NULL,                     /* current_dir */
1182     TRUE,                     /* multi-domain */
1183     FALSE,                    /* overrides_hosts */
1184     100,                      /* max_addresses */
1185     500,                      /* connection_max_messages */
1186     FALSE,                    /* deliver_as_creator */
1187     FALSE,                    /* disable_logging */
1188     FALSE,                    /* initgroups */
1189     FALSE,                    /* uid_set */
1190     FALSE,                    /* gid_set */
1191     (uid_t)(-1),              /* uid */
1192     (gid_t)(-1),              /* gid */
1193     NULL,                     /* expand_uid */
1194     NULL,                     /* expand_gid */
1195     NULL,                     /* warn_message */
1196     NULL,                     /* shadow */
1197     NULL,                     /* shadow_condition */
1198     NULL,                     /* filter_command */
1199     NULL,                     /* add_headers */
1200     NULL,                     /* remove_headers */
1201     NULL,                     /* return_path */
1202     NULL,                     /* debug_string */
1203     NULL,                     /* message_size_limit */
1204     NULL,                     /* headers_rewrite */
1205     NULL,                     /* rewrite_rules */
1206     0,                        /* rewrite_existflags */
1207     300,                      /* filter_timeout */
1208     FALSE,                    /* body_only */
1209     FALSE,                    /* delivery_date_add */
1210     FALSE,                    /* envelope_to_add */
1211     FALSE,                    /* headers_only */
1212     FALSE,                    /* rcpt_include_affixes */
1213     FALSE,                    /* return_path_add */
1214     FALSE,                    /* return_output */
1215     FALSE,                    /* return_fail_output */
1216     FALSE,                    /* log_output */
1217     FALSE,                    /* log_fail_output */
1218     FALSE,                    /* log_defer_output */
1219     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1220                                  1 nor 0 so can detect unset */
1221 };
1222
1223 int     transport_count;
1224 uschar **transport_filter_argv  = NULL;
1225 int     transport_filter_timeout;
1226 BOOL    transport_filter_timed_out = FALSE;
1227 int     transport_write_timeout= 0;
1228
1229 tree_node  *tree_dns_fails     = NULL;
1230 tree_node  *tree_duplicates    = NULL;
1231 tree_node  *tree_nonrecipients = NULL;
1232 tree_node  *tree_unusable      = NULL;
1233
1234 BOOL    trusted_caller         = FALSE;
1235 gid_t  *trusted_groups         = NULL;
1236 uid_t  *trusted_users          = NULL;
1237 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1238
1239 uschar *unknown_login          = NULL;
1240 uschar *unknown_username       = NULL;
1241 uschar *untrusted_set_sender   = NULL;
1242
1243 /*  A regex for matching a "From_" line in an incoming message, in the form
1244
1245     From ph10 Fri Jan  5 12:35 GMT 1996
1246
1247 which  the "mail" commands send to the MTA (undocumented, of course), or in
1248 the  form
1249
1250     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1251
1252 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1253 Because  of variations in time formats, just match up to the minutes. That
1254 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1255 so  just require one digit for hours and minutes. The weekday is also absent
1256 in  some forms. */
1257
1258 uschar *uucp_from_pattern      = US
1259    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1260    "(?:"                                          /* Non-extracting bracket */
1261    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1262    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1263    ")"                                            /* End alternation */
1264    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1265
1266 uschar *uucp_from_sender       = US"$1";
1267
1268 uschar *warn_message_file      = NULL;
1269 uschar *warnmsg_delay          = NULL;
1270 uschar *warnmsg_recipients     = NULL;
1271 BOOL    write_rejectlog        = TRUE;
1272
1273 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1274 uschar *version_date           = US"?";
1275 uschar *version_cnumber        = US"????";
1276 uschar *version_string         = US"?";
1277
1278 int     warning_count          = 0;
1279
1280 /*  End of globals.c */