src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.68 2007/02/05 12:35:46 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_condition)) },
  43   { "server_debug_print", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_debug_string)) },
  45   { "server_mail_auth_condition", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  47   { "server_set_id", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, set_id)) }
  49 };
  50
  51 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  52
  53 /* An empty host aliases list. */
  54
  55 uschar *no_aliases             = NULL;
  56
  57
  58 /* For comments on these variables, see globals.h. I'm too idle to
  59 duplicate them here... */
  60
  61 #ifdef EXIM_PERL
  62 uschar *opt_perl_startup       = NULL;
  63 BOOL    opt_perl_at_start      = FALSE;
  64 BOOL    opt_perl_started       = FALSE;
  65 #endif
  66
  67 #ifdef EXPAND_DLFUNC
  68 tree_node *dlobj_anchor        = NULL;
  69 #endif
  70
  71 #ifdef LOOKUP_IBASE
  72 uschar *ibase_servers          = NULL;
  73 #endif
  74
  75 #ifdef LOOKUP_LDAP
  76 uschar *eldap_default_servers  = NULL;
  77 int     eldap_version          = -1;
  78 #endif
  79
  80 #ifdef LOOKUP_MYSQL
  81 uschar *mysql_servers          = NULL;
  82 #endif
  83
  84 #ifdef LOOKUP_ORACLE
  85 uschar *oracle_servers         = NULL;
  86 #endif
  87
  88 #ifdef LOOKUP_PGSQL
  89 uschar *pgsql_servers          = NULL;
  90 #endif
  91
  92 #ifdef LOOKUP_SQLITE
  93 int     sqlite_lock_timeout    = 5;
  94 #endif
  95
  96 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  97 BOOL    move_frozen_messages   = FALSE;
  98 #endif
  99
 100 /* These variables are outside the #ifdef because it keeps the code less
 101 cluttered in several places (e.g. during logging) if we can always refer to
 102 them. Also, the tls_ variables are now always visible. */
 103
 104 BOOL    tls_active             = -1;
 105 BOOL    tls_certificate_verified = FALSE;
 106 uschar *tls_cipher             = NULL;
 107 BOOL    tls_on_connect         = FALSE;
 108 uschar *tls_on_connect_ports   = NULL;
 109 uschar *tls_peerdn             = NULL;
 110
 111 #ifdef SUPPORT_TLS
 112 uschar *gnutls_require_mac     = NULL;
 113 uschar *gnutls_require_kx      = NULL;
 114 uschar *gnutls_require_proto   = NULL;
 115 const pcre *regex_STARTTLS     = NULL;
 116 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 117 uschar *tls_certificate        = NULL;
 118 uschar *tls_crl                = NULL;
 119 uschar *tls_dhparam            = NULL;
 120 BOOL    tls_offered            = FALSE;
 121 uschar *tls_privatekey         = NULL;
 122 BOOL    tls_remember_esmtp     = FALSE;
 123 uschar *tls_require_ciphers    = NULL;
 124 uschar *tls_try_verify_hosts   = NULL;
 125 uschar *tls_verify_certificates= NULL;
 126 uschar *tls_verify_hosts       = NULL;
 127 #endif
 128
 129
 130 /* Input-reading functions for messages, so we can use special ones for
 131 incoming TCP/IP. The defaults use stdin. We never need these for any
 132 stand-alone tests. */
 133
 134 #ifndef STAND_ALONE
 135 int (*receive_getc)(void)      = stdin_getc;
 136 int (*receive_ungetc)(int)     = stdin_ungetc;
 137 int (*receive_feof)(void)      = stdin_feof;
 138 int (*receive_ferror)(void)    = stdin_ferror;
 139 #endif
 140
 141
 142 /* List of per-address expansion variables for clearing and saving/restoring
 143 when verifying one address while routing/verifying another. We have to have
 144 the size explicit, because it is referenced from more than one module. */
 145
 146 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 147   &deliver_address_data,
 148   &deliver_domain,
 149   &deliver_domain_data,
 150   &deliver_domain_orig,
 151   &deliver_domain_parent,
 152   &deliver_localpart,
 153   &deliver_localpart_data,
 154   &deliver_localpart_orig,
 155   &deliver_localpart_parent,
 156   &deliver_localpart_prefix,
 157   &deliver_localpart_suffix,
 158   (uschar **)(&deliver_recipients),
 159   &deliver_host,
 160   &deliver_home,
 161   &address_file,
 162   &address_pipe,
 163   &self_hostname,
 164   NULL };
 165
 166 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 167
 168 /* General global variables */
 169
 170 header_line *acl_added_headers = NULL;
 171 tree_node *acl_anchor          = NULL;
 172 uschar *acl_not_smtp           = NULL;
 173 #ifdef WITH_CONTENT_SCAN
 174 uschar *acl_not_smtp_mime      = NULL;
 175 #endif
 176 uschar *acl_not_smtp_start     = NULL;
 177 uschar *acl_smtp_auth          = NULL;
 178 uschar *acl_smtp_connect       = NULL;
 179 uschar *acl_smtp_data          = NULL;
 180 uschar *acl_smtp_etrn          = NULL;
 181 uschar *acl_smtp_expn          = NULL;
 182 uschar *acl_smtp_helo          = NULL;
 183 uschar *acl_smtp_mail          = NULL;
 184 uschar *acl_smtp_mailauth      = NULL;
 185 #ifdef WITH_CONTENT_SCAN
 186 uschar *acl_smtp_mime          = NULL;
 187 #endif
 188 uschar *acl_smtp_predata       = NULL;
 189 uschar *acl_smtp_quit          = NULL;
 190 uschar *acl_smtp_rcpt          = NULL;
 191 uschar *acl_smtp_starttls      = NULL;
 192 uschar *acl_smtp_vrfy          = NULL;
 193 BOOL    acl_temp_details       = FALSE;
 194 tree_node *acl_var_c           = NULL;
 195 tree_node *acl_var_m           = NULL;
 196 uschar *acl_verify_message     = NULL;
 197 string_item *acl_warn_logged   = NULL;
 198
 199 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 200 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 201
 202 uschar *acl_wherenames[]       = { US"RCPT",
 203                                    US"MAIL",
 204                                    US"PREDATA",
 205                                    US"MIME",
 206                                    US"DATA",
 207                                    US"non-SMTP",
 208                                    US"AUTH",
 209                                    US"connection",
 210                                    US"ETRN",
 211                                    US"EXPN",
 212                                    US"EHLO or HELO",
 213                                    US"MAILAUTH",
 214                                    US"non-SMTP-start",
 215                                    US"QUIT",
 216                                    US"STARTTLS",
 217                                    US"VRFY"
 218                                  };
 219
 220 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 221                                    US"550",     /* MAIL */
 222                                    US"550",     /* PREDATA */
 223                                    US"550",     /* MIME */
 224                                    US"550",     /* DATA */
 225                                    US"0",       /* not SMTP; not relevant */
 226                                    US"503",     /* AUTH */
 227                                    US"550",     /* connect */
 228                                    US"458",     /* ETRN */
 229                                    US"550",     /* EXPN */
 230                                    US"550",     /* HELO/EHLO */
 231                                    US"0",       /* MAILAUTH; not relevant */
 232                                    US"0",       /* not SMTP; not relevant */
 233                                    US"0",       /* QUIT; not relevant */
 234                                    US"550",     /* STARTTLS */
 235                                    US"252"      /* VRFY */
 236                                  };
 237
 238 BOOL    active_local_from_check = FALSE;
 239 BOOL    active_local_sender_retain = FALSE;
 240 BOOL    accept_8bitmime        = FALSE;
 241 address_item  *addr_duplicate  = NULL;
 242
 243 address_item address_defaults = {
 244   NULL,                 /* next */
 245   NULL,                 /* parent */
 246   NULL,                 /* first */
 247   NULL,                 /* dupof */
 248   NULL,                 /* start_router */
 249   NULL,                 /* router */
 250   NULL,                 /* transport */
 251   NULL,                 /* host_list */
 252   NULL,                 /* host_used */
 253   NULL,                 /* fallback_hosts */
 254   NULL,                 /* reply */
 255   NULL,                 /* retries */
 256   NULL,                 /* address */
 257   NULL,                 /* unique */
 258   NULL,                 /* cc_local_part */
 259   NULL,                 /* lc_local_part */
 260   NULL,                 /* local_part */
 261   NULL,                 /* prefix */
 262   NULL,                 /* suffix */
 263   NULL,                 /* domain */
 264   NULL,                 /* address_retry_key */
 265   NULL,                 /* domain_retry_key */
 266   NULL,                 /* current_dir */
 267   NULL,                 /* home_dir */
 268   NULL,                 /* message */
 269   NULL,                 /* user_message */
 270   NULL,                 /* onetime_parent */
 271   NULL,                 /* pipe_expandn */
 272   NULL,                 /* return_filename */
 273   NULL,                 /* self_hostname */
 274   NULL,                 /* shadow_message */
 275   #ifdef SUPPORT_TLS
 276   NULL,                 /* cipher */
 277   NULL,                 /* peerdn */
 278   #endif
 279   (uid_t)(-1),          /* uid */
 280   (gid_t)(-1),          /* gid */
 281   0,                    /* flags */
 282   { 0 },                /* domain_cache - any larger array should be zeroed */
 283   { 0 },                /* localpart_cache - ditto */
 284   -1,                   /* mode */
 285   0,                    /* more_errno */
 286   ERRNO_UNKNOWNERROR,   /* basic_errno */
 287   0,                    /* child_count */
 288   -1,                   /* return_file */
 289   SPECIAL_NONE,         /* special_action */
 290   DEFER,                /* transport_return */
 291   {                     /* fields that are propagated to children */
 292     NULL,               /* address_data */
 293     NULL,               /* domain_data */
 294     NULL,               /* localpart_data */
 295     NULL,               /* errors_address */
 296     NULL,               /* extra_headers */
 297     NULL,               /* remove_headers */
 298 #ifdef EXPERIMENTAL_SRS
 299     NULL,               /* srs_sender */
 300 #endif
 301   }
 302 };
 303
 304 uschar *address_file           = NULL;
 305 uschar *address_pipe           = NULL;
 306 BOOL    address_test_mode      = FALSE;
 307 tree_node *addresslist_anchor  = NULL;
 308 int     addresslist_count      = 0;
 309 gid_t  *admin_groups           = NULL;
 310 BOOL    admin_user             = FALSE;
 311 BOOL    allow_auth_unadvertised= FALSE;
 312 BOOL    allow_domain_literals  = FALSE;
 313 BOOL    allow_mx_to_ip         = FALSE;
 314 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 315 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 316 BOOL    allow_utf8_domains     = FALSE;
 317 uschar *authenticated_id       = NULL;
 318 uschar *authenticated_sender   = NULL;
 319 BOOL    authentication_failed  = FALSE;
 320 auth_instance  *auths          = NULL;
 321 uschar *auth_advertise_hosts   = US"*";
 322 auth_instance auth_defaults    = {
 323     NULL,                      /* chain pointer */
 324     NULL,                      /* name */
 325     NULL,                      /* info */
 326     NULL,                      /* private options block pointer */
 327     NULL,                      /* driver_name */
 328     NULL,                      /* advertise_condition */
 329     NULL,                      /* public_name */
 330     NULL,                      /* set_id */
 331     NULL,                      /* server_mail_auth_condition */
 332     NULL,                      /* server_debug_string */
 333     NULL,                      /* server_condition */
 334     FALSE,                     /* client */
 335     FALSE,                     /* server */
 336     FALSE                      /* advertised */
 337 };
 338
 339 uschar *auth_defer_msg         = US"reason not recorded";
 340 uschar *auth_defer_user_msg    = US"";
 341 uschar *auth_vars[AUTH_VARS];
 342 int     auto_thaw              = 0;
 343 #ifdef WITH_CONTENT_SCAN
 344 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 345 #endif
 346
 347 BOOL    background_daemon      = TRUE;
 348
 349 #if BASE_62 == 62
 350 uschar *base62_chars=
 351     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 352 #else
 353 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 354 #endif
 355
 356 uschar *bi_command             = NULL;
 357 uschar *big_buffer             = NULL;
 358 int     big_buffer_size        = BIG_BUFFER_SIZE;
 359 #ifdef EXPERIMENTAL_BRIGHTMAIL
 360 uschar *bmi_alt_location       = NULL;
 361 uschar *bmi_base64_tracker_verdict = NULL;
 362 uschar *bmi_base64_verdict     = NULL;
 363 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 364 int     bmi_deliver            = 1;
 365 int     bmi_run                = 0;
 366 uschar *bmi_verdicts           = NULL;
 367 #endif
 368 int     body_linecount         = 0;
 369 int     body_zerocount         = 0;
 370 uschar *bounce_message_file    = NULL;
 371 uschar *bounce_message_text    = NULL;
 372 uschar *bounce_recipient       = NULL;
 373 BOOL    bounce_return_body     = TRUE;
 374 BOOL    bounce_return_message  = TRUE;
 375 int     bounce_return_size_limit = 100*1024;
 376 uschar *bounce_sender_authentication = NULL;
 377 int     bsmtp_transaction_linecount = 0;
 378
 379 int     callout_cache_domain_positive_expire = 7*24*60*60;
 380 int     callout_cache_domain_negative_expire = 3*60*60;
 381 int     callout_cache_positive_expire = 24*60*60;
 382 int     callout_cache_negative_expire = 2*60*60;
 383 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 384 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 385 int     check_log_inodes       = 0;
 386 int     check_log_space        = 0;
 387 BOOL    check_rfc2047_length   = TRUE;
 388 int     check_spool_inodes     = 0;
 389 int     check_spool_space      = 0;
 390 int     clmacro_count          = 0;
 391 uschar *clmacros[MAX_CLMACROS];
 392 BOOL    config_changed         = FALSE;
 393 FILE   *config_file            = NULL;
 394 uschar *config_filename        = NULL;
 395 int     config_lineno          = 0;
 396 #ifdef CONFIGURE_GROUP
 397 gid_t   config_gid             = CONFIGURE_GROUP;
 398 #endif
 399 uschar *config_main_filelist   = US CONFIGURE_FILE
 400                          "\0<-----------Space to patch configure_filename->";
 401 uschar *config_main_filename   = NULL;
 402
 403 #ifdef CONFIGURE_OWNER
 404 uid_t   config_uid             = CONFIGURE_OWNER;
 405 #endif
 406
 407 int     connection_max_messages= -1;
 408 uschar *continue_hostname      = NULL;
 409 uschar *continue_host_address  = NULL;
 410 BOOL    continue_more          = FALSE;
 411 int     continue_sequence      = 1;
 412 uschar *continue_transport     = NULL;
 413
 414 uschar *csa_status             = NULL;
 415
 416 BOOL    daemon_listen          = FALSE;
 417 uschar *daemon_smtp_port       = US"smtp";
 418 int     daemon_startup_retries = 9;
 419 int     daemon_startup_sleep   = 30;
 420 BOOL    debug_daemon           = FALSE;
 421 int     debug_fd               = -1;
 422 FILE   *debug_file             = NULL;
 423 bit_table debug_options[]      = {
 424   { US"acl",            D_acl },
 425   { US"all",            D_all },
 426   { US"auth",           D_auth },
 427   { US"deliver",        D_deliver },
 428   { US"dns",            D_dns },
 429   { US"dnsbl",          D_dnsbl },
 430   { US"exec",           D_exec },
 431   { US"expand",         D_expand },
 432   { US"filter",         D_filter },
 433   { US"hints_lookup",   D_hints_lookup },
 434   { US"host_lookup",    D_host_lookup },
 435   { US"ident",          D_ident },
 436   { US"interface",      D_interface },
 437   { US"lists",          D_lists },
 438   { US"load",           D_load },
 439   { US"local_scan",     D_local_scan },
 440   { US"lookup",         D_lookup },
 441   { US"memory",         D_memory },
 442   { US"pid",            D_pid },
 443   { US"process_info",   D_process_info },
 444   { US"queue_run",      D_queue_run },
 445   { US"receive",        D_receive },
 446   { US"resolver",       D_resolver },
 447   { US"retry",          D_retry },
 448   { US"rewrite",        D_rewrite },
 449   { US"route",          D_route },
 450   { US"timestamp",      D_timestamp },
 451   { US"tls",            D_tls },
 452   { US"transport",      D_transport },
 453   { US"uid",            D_uid },
 454   { US"verify",         D_verify }
 455 };
 456 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 457 unsigned int debug_selector    = 0;
 458 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 459 uschar *delay_warning_condition=
 460   US"${if or {"
 461             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 462             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 463             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 464             "} {no}{yes}}";
 465 BOOL    delivery_date_remove   = TRUE;
 466 uschar *deliver_address_data   = NULL;
 467 int     deliver_datafile       = -1;
 468 uschar *deliver_domain         = NULL;
 469 uschar *deliver_domain_data    = NULL;
 470 uschar *deliver_domain_orig    = NULL;
 471 uschar *deliver_domain_parent  = NULL;
 472 BOOL    deliver_drop_privilege = FALSE;
 473 BOOL    deliver_firsttime      = FALSE;
 474 BOOL    deliver_force          = FALSE;
 475 BOOL    deliver_freeze         = FALSE;
 476 int     deliver_frozen_at      = 0;
 477 uschar *deliver_home           = NULL;
 478 uschar *deliver_host           = NULL;
 479 uschar *deliver_host_address   = NULL;
 480 uschar *deliver_in_buffer      = NULL;
 481 ino_t   deliver_inode          = 0;
 482 uschar *deliver_localpart      = NULL;
 483 uschar *deliver_localpart_data = NULL;
 484 uschar *deliver_localpart_orig = NULL;
 485 uschar *deliver_localpart_parent = NULL;
 486 uschar *deliver_localpart_prefix = NULL;
 487 uschar *deliver_localpart_suffix = NULL;
 488 BOOL    deliver_force_thaw     = FALSE;
 489 BOOL    deliver_manual_thaw    = FALSE;
 490 uschar *deliver_out_buffer     = NULL;
 491 int     deliver_queue_load_max = -1;
 492 address_item  *deliver_recipients = NULL;
 493 uschar *deliver_selectstring   = NULL;
 494 BOOL    deliver_selectstring_regex = FALSE;
 495 uschar *deliver_selectstring_sender = NULL;
 496 BOOL    deliver_selectstring_sender_regex = FALSE;
 497 #ifdef WITH_OLD_DEMIME
 498 int     demime_errorlevel      = 0;
 499 int     demime_ok              = 0;
 500 uschar *demime_reason          = NULL;
 501 #endif
 502 BOOL    disable_delay_flush    = FALSE;
 503 #ifdef ENABLE_DISABLE_FSYNC
 504 BOOL    disable_fsync          = FALSE;
 505 #endif
 506 BOOL    disable_ipv6           = FALSE;
 507 BOOL    disable_logging        = FALSE;
 508
 509 #ifdef EXPERIMENTAL_DOMAINKEYS
 510 uschar *dk_signing_domain      = NULL;
 511 uschar *dk_signing_selector    = NULL;
 512 int     dk_do_verify           = 0;
 513 #endif
 514
 515 uschar *dns_again_means_nonexist = NULL;
 516 int     dns_csa_search_limit   = 5;
 517 BOOL    dns_csa_use_reverse    = TRUE;
 518 uschar *dns_ipv4_lookup        = NULL;
 519 int     dns_retrans            = 0;
 520 int     dns_retry              = 0;
 521 uschar *dnslist_domain         = NULL;
 522 uschar *dnslist_text           = NULL;
 523 uschar *dnslist_value          = NULL;
 524 tree_node *domainlist_anchor   = NULL;
 525 int     domainlist_count       = 0;
 526 BOOL    dont_deliver           = FALSE;
 527 BOOL    dot_ends               = TRUE;
 528 BOOL    drop_cr                = FALSE;         /* No longer used */
 529
 530 BOOL    enable_dollar_recipients = FALSE;
 531 BOOL    envelope_to_remove     = TRUE;
 532 int     errno_quota            = ERRNO_QUOTA;
 533 uschar *errors_copy            = NULL;
 534 int     error_handling         = ERRORS_SENDER;
 535 uschar *errors_reply_to        = NULL;
 536 int     errors_sender_rc       = EXIT_FAILURE;
 537
 538 gid_t   exim_gid               = EXIM_GID;
 539 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 540 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 541                         "\0<---------------Space to patch exim_path->";
 542 uid_t   exim_uid               = EXIM_UID;
 543 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 544 int     expand_forbid          = 0;
 545 int     expand_nlength[EXPAND_MAXN+1];
 546 int     expand_nmax            = -1;
 547 uschar *expand_nstring[EXPAND_MAXN+1];
 548 BOOL    expand_string_forcedfail = FALSE;
 549 uschar *expand_string_message;
 550 BOOL    extract_addresses_remove_arguments = TRUE;
 551 uschar *extra_local_interfaces = NULL;
 552
 553 int     fake_response          = OK;
 554 uschar *fake_response_text     = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legitimate message, it may still be delivered to the target recipient(s).";
 555 int     filter_n[FILTER_VARIABLE_COUNT];
 556 BOOL    filter_running         = FALSE;
 557 int     filter_sn[FILTER_VARIABLE_COUNT];
 558 int     filter_test            = FTEST_NONE;
 559 uschar *filter_test_sfile      = NULL;
 560 uschar *filter_test_ufile      = NULL;
 561 uschar *filter_thisaddress     = NULL;
 562 int     finduser_retries       = 0;
 563 #ifdef WITH_OLD_DEMIME
 564 uschar *found_extension        = NULL;
 565 #endif
 566 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 567 uschar *freeze_tell            = NULL;
 568 uschar *freeze_tell_config     = NULL;
 569 uschar *fudged_queue_times     = US"";
 570
 571 uschar *gecos_name             = NULL;
 572 uschar *gecos_pattern          = NULL;
 573 rewrite_rule  *global_rewrite_rules = NULL;
 574
 575 uschar *headers_charset        = US HEADERS_CHARSET;
 576 int     header_insert_maxlen   = 64 * 1024;
 577 header_line  *header_last      = NULL;
 578 header_line  *header_list      = NULL;
 579 int     header_maxsize         = HEADER_MAXSIZE;
 580 int     header_line_maxsize    = 0;
 581
 582 header_name header_names[] = {
 583   { US"bcc",            3, TRUE,  htype_bcc },
 584   { US"cc",             2, TRUE,  htype_cc },
 585   { US"date",           4, TRUE,  htype_date },
 586   { US"delivery-date", 13, FALSE, htype_delivery_date },
 587   { US"envelope-to",   11, FALSE, htype_envelope_to },
 588   { US"from",           4, TRUE,  htype_from },
 589   { US"message-id",    10, TRUE,  htype_id },
 590   { US"received",       8, FALSE, htype_received },
 591   { US"reply-to",       8, FALSE, htype_reply_to },
 592   { US"return-path",   11, FALSE, htype_return_path },
 593   { US"sender",         6, TRUE,  htype_sender },
 594   { US"subject",        7, FALSE, htype_subject },
 595   { US"to",             2, TRUE,  htype_to }
 596 };
 597
 598 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 599
 600 BOOL    header_rewritten       = FALSE;
 601 uschar *helo_accept_junk_hosts = NULL;
 602 uschar *helo_allow_chars       = US"";
 603 uschar *helo_lookup_domains    = US"@ : @[]";
 604 uschar *helo_try_verify_hosts  = NULL;
 605 BOOL    helo_verified          = FALSE;
 606 BOOL    helo_verify_failed     = FALSE;
 607 uschar *helo_verify_hosts      = NULL;
 608 uschar *hex_digits             = US"0123456789abcdef";
 609 uschar *hold_domains           = NULL;
 610 BOOL    host_checking          = FALSE;
 611 BOOL    host_checking_callout  = FALSE;
 612 uschar *host_data              = NULL;
 613 BOOL    host_find_failed_syntax= FALSE;
 614 uschar *host_lookup            = NULL;
 615 BOOL    host_lookup_deferred   = FALSE;
 616 BOOL    host_lookup_failed     = FALSE;
 617 uschar *host_lookup_order      = US"bydns:byaddr";
 618 uschar *host_lookup_msg        = US"";
 619 int     host_number            = 0;
 620 uschar *host_number_string     = NULL;
 621 uschar *host_reject_connection = NULL;
 622 tree_node *hostlist_anchor     = NULL;
 623 int     hostlist_count         = 0;
 624 uschar *hosts_treat_as_local   = NULL;
 625 uschar *hosts_connection_nolog = NULL;
 626
 627 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 628 BOOL    ignore_fromline_local  = FALSE;
 629 uschar *ignore_fromline_hosts  = NULL;
 630 uschar *interface_address      = NULL;
 631 int     interface_port         = -1;
 632 BOOL    is_inetd               = FALSE;
 633
 634 int     journal_fd             = -1;
 635
 636 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 637
 638 uschar *eldap_dn               = NULL;
 639 int     load_average           = -2;
 640 BOOL    local_error_message    = FALSE;
 641 BOOL    local_from_check       = TRUE;
 642 uschar *local_from_prefix      = NULL;
 643 uschar *local_from_suffix      = NULL;
 644
 645 #if HAVE_IPV6
 646 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 647 #else
 648 uschar *local_interfaces       = US"0.0.0.0";
 649 #endif
 650
 651 uschar *local_scan_data        = NULL;
 652 int     local_scan_timeout     = 5*60;
 653 BOOL    local_sender_retain    = FALSE;
 654 gid_t   local_user_gid         = (gid_t)(-1);
 655 uid_t   local_user_uid         = (uid_t)(-1);
 656
 657 tree_node *localpartlist_anchor= NULL;
 658 int     localpartlist_count    = 0;
 659 uschar *log_buffer             = NULL;
 660 unsigned int log_extra_selector = LX_default;
 661 uschar *log_file_path          = US LOG_FILE_PATH
 662                            "\0<--------------Space to patch log_file_path->";
 663
 664 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 665 are the ones that get put into log_write_selector. They can be used in calls to
 666 log_write() to test for the bit. The options with LX_xxx identifiers have
 667 values greater than 0x80000000 and are put int log_extra_selector (without the
 668 top bit). They are never used in calls to log_write(), but are tested
 669 independently. This separation became necessary when the number of log
 670 selectors was getting close to filling a 32-bit word. */
 671
 672 /* Note that this list must be in alphabetical order. */
 673
 674 bit_table log_options[]        = {
 675   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 676   { US"address_rewrite",              L_address_rewrite },
 677   { US"all",                          L_all },
 678   { US"all_parents",                  L_all_parents },
 679   { US"arguments",                    LX_arguments },
 680   { US"connection_reject",            L_connection_reject },
 681   { US"delay_delivery",               L_delay_delivery },
 682   { US"deliver_time",                 LX_deliver_time },
 683   { US"delivery_size",                LX_delivery_size },
 684   { US"dnslist_defer",                L_dnslist_defer },
 685   { US"etrn",                         L_etrn },
 686   { US"host_lookup_failed",           L_host_lookup_failed },
 687   { US"ident_timeout",                LX_ident_timeout },
 688   { US"incoming_interface",           LX_incoming_interface },
 689   { US"incoming_port",                LX_incoming_port },
 690   { US"lost_incoming_connection",     L_lost_incoming_connection },
 691   { US"outgoing_port",                LX_outgoing_port },
 692   { US"pid",                          LX_pid },
 693   { US"queue_run",                    L_queue_run },
 694   { US"queue_time",                   LX_queue_time },
 695   { US"queue_time_overall",           LX_queue_time_overall },
 696   { US"received_recipients",          LX_received_recipients },
 697   { US"received_sender",              LX_received_sender },
 698   { US"rejected_header",              LX_rejected_header },
 699   { US"rejected_headers",             LX_rejected_header },
 700   { US"retry_defer",                  L_retry_defer },
 701   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 702   { US"sender_on_delivery",           LX_sender_on_delivery },
 703   { US"sender_verify_fail",           LX_sender_verify_fail },
 704   { US"size_reject",                  L_size_reject },
 705   { US"skip_delivery",                L_skip_delivery },
 706   { US"smtp_confirmation",            LX_smtp_confirmation },
 707   { US"smtp_connection",              L_smtp_connection },
 708   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 709   { US"smtp_no_mail",                 LX_smtp_no_mail },
 710   { US"smtp_protocol_error",          L_smtp_protocol_error },
 711   { US"smtp_syntax_error",            L_smtp_syntax_error },
 712   { US"subject",                      LX_subject },
 713   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 714   { US"tls_cipher",                   LX_tls_cipher },
 715   { US"tls_peerdn",                   LX_tls_peerdn },
 716   { US"unknown_in_list",              LX_unknown_in_list }
 717 };
 718
 719 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 720 int     log_reject_target      = 0;
 721 uschar *log_selector_string    = NULL;
 722 FILE   *log_stderr             = NULL;
 723 BOOL    log_testing_mode       = FALSE;
 724 BOOL    log_timezone           = FALSE;
 725 unsigned int log_write_selector= L_default;
 726 uschar *login_sender_address   = NULL;
 727 int     lookup_open_max        = 25;
 728 uschar *lookup_value           = NULL;
 729
 730 macro_item  *macros            = NULL;
 731 uschar *mailstore_basename     = NULL;
 732 #ifdef WITH_CONTENT_SCAN
 733 uschar *malware_name           = NULL;  /* Virus Name */
 734 #endif
 735 int     max_username_length    = 0;
 736 int     message_age            = 0;
 737 uschar *message_body           = NULL;
 738 uschar *message_body_end       = NULL;
 739 int     message_body_size      = 0;
 740 int     message_body_visible   = 500;
 741 int     message_ended          = END_NOTSTARTED;
 742 uschar *message_headers        = NULL;
 743 uschar *message_id;
 744 uschar *message_id_domain      = NULL;
 745 uschar *message_id_text        = NULL;
 746 struct timeval message_id_tv   = { 0, 0 };
 747 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 748 uschar *message_id_external;
 749 int     message_linecount      = 0;
 750 BOOL    message_logs           = TRUE;
 751 int     message_size           = 0;
 752 uschar *message_size_limit     = US"50M";
 753 uschar  message_subdir[2]      = { 0, 0 };
 754 uschar *message_reference      = NULL;
 755
 756 /* MIME ACL expandables */
 757 #ifdef WITH_CONTENT_SCAN
 758 int     mime_anomaly_level     = 0;
 759 uschar *mime_anomaly_text      = NULL;
 760 uschar *mime_boundary          = NULL;
 761 uschar *mime_charset           = NULL;
 762 uschar *mime_content_description = NULL;
 763 uschar *mime_content_disposition = NULL;
 764 uschar *mime_content_id        = NULL;
 765 unsigned int mime_content_size = 0;
 766 uschar *mime_content_transfer_encoding = NULL;
 767 uschar *mime_content_type      = NULL;
 768 uschar *mime_decoded_filename  = NULL;
 769 uschar *mime_filename          = NULL;
 770 int     mime_is_multipart      = 0;
 771 int     mime_is_coverletter    = 0;
 772 int     mime_is_rfc822         = 0;
 773 int     mime_part_count        = -1;
 774 #endif
 775
 776 BOOL    mua_wrapper            = FALSE;
 777
 778 uid_t  *never_users            = NULL;
 779 #ifdef WITH_CONTENT_SCAN
 780 BOOL    no_mbox_unspool        = FALSE;
 781 #endif
 782 BOOL    no_multiline_responses = FALSE;
 783
 784 uid_t   original_euid;
 785 gid_t   originator_gid;
 786 uschar *originator_login       = NULL;
 787 uschar *originator_name        = NULL;
 788 uid_t   originator_uid;
 789 uschar *override_local_interfaces = NULL;
 790 uschar *override_pid_file_path = NULL;
 791
 792 BOOL    parse_allow_group      = FALSE;
 793 BOOL    parse_found_group      = FALSE;
 794 uschar *percent_hack_domains   = NULL;
 795 uschar *pid_file_path          = US PID_FILE_PATH
 796                            "\0<--------------Space to patch pid_file_path->";
 797 BOOL    pipelining_enable      = TRUE;
 798 uschar *pipelining_advertise_hosts = US"*";
 799 BOOL    preserve_message_logs  = FALSE;
 800 uschar *primary_hostname       = NULL;
 801 BOOL    print_topbitchars      = FALSE;
 802 uschar  process_info[PROCESS_INFO_SIZE];
 803 uschar *process_log_path       = NULL;
 804 BOOL    prod_requires_admin    = TRUE;
 805 uschar *prvscheck_address      = NULL;
 806 uschar *prvscheck_keynum       = NULL;
 807 uschar *prvscheck_result       = NULL;
 808
 809
 810 uschar *qualify_domain_recipient = NULL;
 811 uschar *qualify_domain_sender  = NULL;
 812 BOOL    queue_2stage           = FALSE;
 813 uschar *queue_domains          = NULL;
 814 int     queue_interval         = -1;
 815 BOOL    queue_list_requires_admin = TRUE;
 816 BOOL    queue_only             = FALSE;
 817 uschar *queue_only_file        = NULL;
 818 int     queue_only_load        = -1;
 819 BOOL    queue_only_override    = TRUE;
 820 BOOL    queue_only_policy      = FALSE;
 821 BOOL    queue_run_first_delivery = FALSE;
 822 BOOL    queue_run_force        = FALSE;
 823 BOOL    queue_run_in_order     = FALSE;
 824 BOOL    queue_run_local        = FALSE;
 825 int     queue_run_max          = 5;
 826 pid_t   queue_run_pid          = (pid_t)0;
 827 int     queue_run_pipe         = -1;
 828 BOOL    queue_running          = FALSE;
 829 BOOL    queue_smtp             = FALSE;
 830 uschar *queue_smtp_domains     = NULL;
 831
 832 unsigned int random_seed       = 0;
 833 tree_node *ratelimiters_cmd    = NULL;
 834 tree_node *ratelimiters_conn   = NULL;
 835 tree_node *ratelimiters_mail   = NULL;
 836 uschar *raw_active_hostname    = NULL;
 837 uschar *raw_sender             = NULL;
 838 uschar **raw_recipients        = NULL;
 839 int     raw_recipients_count   = 0;
 840
 841 int     rcpt_count             = 0;
 842 int     rcpt_fail_count        = 0;
 843 int     rcpt_defer_count       = 0;
 844 gid_t   real_gid;
 845 uid_t   real_uid;
 846 BOOL    really_exim            = TRUE;
 847 BOOL    receive_call_bombout   = FALSE;
 848 int     receive_linecount      = 0;
 849 int     receive_messagecount   = 0;
 850 int     receive_timeout        = 0;
 851 int     received_count         = 0;
 852 uschar *received_for           = NULL;
 853
 854 /*  This is the default text for Received headers generated by Exim. The
 855 date  will be automatically added on the end. */
 856
 857 uschar *received_header_text   = US
 858      "Received: "
 859      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 860      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 861      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 862      "by $primary_hostname "
 863      "${if def:received_protocol {with $received_protocol}} "
 864      #ifdef SUPPORT_TLS
 865      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 866      #endif
 867      "(Exim $version_number)\n\t"
 868      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 869      "id $message_exim_id"
 870      "${if def:received_for {\n\tfor $received_for}}"
 871      "\0<---------------Space to patch received_header_text->";
 872
 873 int     received_headers_max   = 30;
 874 uschar *received_protocol      = NULL;
 875 int     received_time          = 0;
 876 uschar *recipient_data         = NULL;
 877 uschar *recipient_unqualified_hosts = NULL;
 878 uschar *recipient_verify_failure = NULL;
 879 int     recipients_count       = 0;
 880 BOOL    recipients_discarded   = FALSE;
 881 recipient_item  *recipients_list = NULL;
 882 int     recipients_list_max    = 0;
 883 int     recipients_max         = 0;
 884 BOOL    recipients_max_reject  = FALSE;
 885 const pcre *regex_AUTH         = NULL;
 886 const pcre *regex_check_dns_names = NULL;
 887 const pcre *regex_From         = NULL;
 888 const pcre *regex_IGNOREQUOTA  = NULL;
 889 const pcre *regex_PIPELINING   = NULL;
 890 const pcre *regex_SIZE         = NULL;
 891 const pcre *regex_smtp_code    = NULL;
 892 const pcre *regex_ismsgid      = NULL;
 893 #ifdef WITH_CONTENT_SCAN
 894 uschar *regex_match_string     = NULL;
 895 #endif
 896 int     remote_delivery_count  = 0;
 897 int     remote_max_parallel    = 2;
 898 uschar *remote_sort_domains    = NULL;
 899 int     retry_data_expire      = 7*24*60*60;
 900 int     retry_interval_max     = 24*60*60;
 901 int     retry_maximum_timeout  = 0;        /* set from retry config */
 902 retry_config  *retries         = NULL;
 903 uschar *return_path            = NULL;
 904 BOOL    return_path_remove     = TRUE;
 905 int     rewrite_existflags     = 0;
 906 uschar *rfc1413_hosts          = US"*";
 907 int     rfc1413_query_timeout  = 5;
 908 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 909 uid_t   root_uid               = ROOT_UID;
 910
 911 router_instance  *routers  = NULL;
 912 router_instance  router_defaults = {
 913     NULL,                      /* chain pointer */
 914     NULL,                      /* name */
 915     NULL,                      /* info */
 916     NULL,                      /* private options block pointer */
 917     NULL,                      /* driver name */
 918
 919     NULL,                      /* address_data */
 920 #ifdef EXPERIMENTAL_BRIGHTMAIL
 921     NULL,                      /* bmi_rule */
 922 #endif
 923     NULL,                      /* cannot_route_message */
 924     NULL,                      /* condition */
 925     NULL,                      /* current_directory */
 926     NULL,                      /* debug_string */
 927     NULL,                      /* domains */
 928     NULL,                      /* errors_to */
 929     NULL,                      /* expand_gid */
 930     NULL,                      /* expand_uid */
 931     NULL,                      /* expand_more */
 932     NULL,                      /* expand_unseen */
 933     NULL,                      /* extra_headers */
 934     NULL,                      /* fallback_hosts */
 935     NULL,                      /* home_directory */
 936     NULL,                      /* ignore_target_hosts */
 937     NULL,                      /* local_parts */
 938     NULL,                      /* pass_router_name */
 939     NULL,                      /* prefix */
 940     NULL,                      /* redirect_router_name */
 941     NULL,                      /* remove_headers */
 942     NULL,                      /* require_files */
 943     NULL,                      /* router_home_directory */
 944     US"freeze",                /* self */
 945     NULL,                      /* senders */
 946     NULL,                      /* suffix */
 947     NULL,                      /* translate_ip_address */
 948     NULL,                      /* transport_name */
 949
 950     TRUE,                      /* address_test */
 951 #ifdef EXPERIMENTAL_BRIGHTMAIL
 952     FALSE,                     /* bmi_deliver_alternate */
 953     FALSE,                     /* bmi_deliver_default */
 954     FALSE,                     /* bmi_dont_deliver */
 955 #endif
 956     TRUE,                      /* expn */
 957     FALSE,                     /* caseful_local_part */
 958     FALSE,                     /* check_local_user */
 959     FALSE,                     /* disable_logging */
 960     FALSE,                     /* fail_verify_recipient */
 961     FALSE,                     /* fail_verify_sender */
 962     FALSE,                     /* gid_set */
 963     FALSE,                     /* initgroups */
 964     TRUE_UNSET,                /* log_as_local */
 965     TRUE,                      /* more */
 966     FALSE,                     /* pass_on_timeout */
 967     FALSE,                     /* prefix_optional */
 968     TRUE,                      /* repeat_use */
 969     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 970     FALSE,                     /* same_domain_copy_routing */
 971     FALSE,                     /* self_rewrite */
 972     FALSE,                     /* suffix_optional */
 973     FALSE,                     /* verify_only */
 974     TRUE,                      /* verify_recipient */
 975     TRUE,                      /* verify_sender */
 976     FALSE,                     /* uid_set */
 977     FALSE,                     /* unseen */
 978
 979     self_freeze,               /* self_code */
 980     (uid_t)(-1),               /* uid */
 981     (gid_t)(-1),               /* gid */
 982
 983     NULL,                      /* fallback_hostlist */
 984     NULL,                      /* transport instance */
 985     NULL,                      /* pass_router */
 986     NULL                       /* redirect_router */
 987 };
 988
 989 ip_address_item *running_interfaces = NULL;
 990 BOOL    running_in_test_harness = FALSE;
 991
 992 /* This is a weird one. The following string gets patched in the binary by the
 993 script that sets up a copy of Exim for running in the test harness. It seems
 994 that compilers are now clever, and share constant strings if they can.
 995 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 996 make use of the end of this string in order to save space. So the patching then
 997 wrecks this. We default this optimization by adding some additional characters
 998 onto the end of the string. */
 999
1000 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1001
1002 int     runrc                  = 0;
1003
1004 uschar *search_error_message   = NULL;
1005 BOOL    search_find_defer      = FALSE;
1006 uschar *self_hostname          = NULL;
1007 uschar *sender_address         = NULL;
1008 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1009 uschar *sender_address_data    = NULL;
1010 BOOL    sender_address_forced  = FALSE;
1011 uschar *sender_address_unrewritten = NULL;
1012 uschar *sender_data            = NULL;
1013 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1014 uschar *sender_fullhost        = NULL;
1015 uschar *sender_helo_name       = NULL;
1016 uschar **sender_host_aliases   = &no_aliases;
1017 uschar *sender_host_address    = NULL;
1018 uschar *sender_host_authenticated = NULL;
1019 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1020 uschar *sender_host_name       = NULL;
1021 int     sender_host_port       = 0;
1022 BOOL    sender_host_notsocket  = FALSE;
1023 BOOL    sender_host_unknown    = FALSE;
1024 uschar *sender_ident           = NULL;
1025 BOOL    sender_local           = FALSE;
1026 BOOL    sender_name_forced     = FALSE;
1027 uschar *sender_rate            = NULL;
1028 uschar *sender_rate_limit      = NULL;
1029 uschar *sender_rate_period     = NULL;
1030 uschar *sender_rcvhost         = NULL;
1031 BOOL    sender_set_untrusted   = FALSE;
1032 uschar *sender_unqualified_hosts = NULL;
1033 uschar *sender_verify_failure = NULL;
1034 address_item *sender_verified_list  = NULL;
1035 address_item *sender_verified_failed = NULL;
1036 int     sender_verified_rc     = -1;
1037 BOOL    sender_verified_responded = FALSE;
1038 uschar *sending_ip_address     = NULL;
1039 int     sending_port           = -1;
1040 volatile  BOOL sigalrm_seen    = FALSE;
1041 uschar **sighup_argv           = NULL;
1042 int     smtp_accept_count      = 0;
1043 BOOL    smtp_accept_keepalive  = TRUE;
1044 int     smtp_accept_max        = 20;
1045 int     smtp_accept_max_nonmail= 10;
1046 uschar *smtp_accept_max_nonmail_hosts = US"*";
1047 int     smtp_accept_max_per_connection = 1000;
1048 uschar *smtp_accept_max_per_host = NULL;
1049 int     smtp_accept_queue      = 0;
1050 int     smtp_accept_queue_per_connection = 10;
1051 int     smtp_accept_reserve    = 0;
1052 uschar *smtp_active_hostname   = NULL;
1053 BOOL    smtp_authenticated     = FALSE;
1054 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1055                              "Exim $version_number $tod_full"
1056                              "\0<---------------Space to patch smtp_banner->";
1057 BOOL    smtp_batched_input     = FALSE;
1058 BOOL    smtp_check_spool_space = TRUE;
1059 int     smtp_ch_index          = 0;
1060 uschar *smtp_cmd_argument      = NULL;
1061 uschar *smtp_cmd_buffer        = NULL;
1062 time_t  smtp_connection_start  = 0;
1063 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1064 int     smtp_connect_backlog   = 20;
1065 double  smtp_delay_mail        = 0.0;
1066 double  smtp_delay_rcpt        = 0.0;
1067 BOOL    smtp_enforce_sync      = TRUE;
1068 FILE   *smtp_in                = NULL;
1069 BOOL    smtp_input             = FALSE;
1070 int     smtp_load_reserve      = -1;
1071 int     smtp_mailcmd_count     = 0;
1072 FILE   *smtp_out               = NULL;
1073 uschar *smtp_etrn_command      = NULL;
1074 BOOL    smtp_etrn_serialize    = TRUE;
1075 int     smtp_max_synprot_errors= 3;
1076 int     smtp_max_unknown_commands = 3;
1077 uschar *smtp_ratelimit_hosts   = NULL;
1078 uschar *smtp_ratelimit_mail    = NULL;
1079 uschar *smtp_ratelimit_rcpt    = NULL;
1080 uschar *smtp_read_error        = US"";
1081 int     smtp_receive_timeout   = 5*60;
1082 uschar *smtp_reserve_hosts     = NULL;
1083 BOOL    smtp_return_error_details = FALSE;
1084 int     smtp_rlm_base          = 0;
1085 double  smtp_rlm_factor        = 0.0;
1086 int     smtp_rlm_limit         = 0;
1087 int     smtp_rlm_threshold     = INT_MAX;
1088 int     smtp_rlr_base          = 0;
1089 double  smtp_rlr_factor        = 0.0;
1090 int     smtp_rlr_limit         = 0;
1091 int     smtp_rlr_threshold     = INT_MAX;
1092 BOOL    smtp_use_pipelining    = FALSE;
1093 BOOL    smtp_use_size          = FALSE;
1094
1095 #ifdef WITH_CONTENT_SCAN
1096 uschar *spamd_address          = US"127.0.0.1 783";
1097 uschar *spam_bar               = NULL;
1098 uschar *spam_report            = NULL;
1099 uschar *spam_score             = NULL;
1100 uschar *spam_score_int         = NULL;
1101 #endif
1102 #ifdef EXPERIMENTAL_SPF
1103 uschar *spf_header_comment     = NULL;
1104 uschar *spf_received           = NULL;
1105 uschar *spf_result             = NULL;
1106 uschar *spf_smtp_comment       = NULL;
1107 #endif
1108
1109 BOOL    split_spool_directory  = FALSE;
1110 uschar *spool_directory        = US SPOOL_DIRECTORY
1111                            "\0<--------------Space to patch spool_directory->";
1112 #ifdef EXPERIMENTAL_SRS
1113 uschar *srs_config             = NULL;
1114 uschar *srs_db_address         = NULL;
1115 uschar *srs_db_key             = NULL;
1116 int     srs_hashlength         = 6;
1117 int     srs_hashmin            = -1;
1118 int     srs_maxage             = 31;
1119 uschar *srs_orig_recipient     = NULL;
1120 uschar *srs_orig_sender        = NULL;
1121 uschar *srs_recipient          = NULL;
1122 uschar *srs_secrets            = NULL;
1123 uschar *srs_status             = NULL;
1124 BOOL    srs_usehash            = TRUE;
1125 BOOL    srs_usetimestamp       = TRUE;
1126 #endif
1127 BOOL    strict_acl_vars        = FALSE;
1128 int     string_datestamp_offset= -1;
1129 BOOL    strip_excess_angle_brackets = FALSE;
1130 BOOL    strip_trailing_dot     = FALSE;
1131 uschar *submission_domain      = NULL;
1132 BOOL    submission_mode        = FALSE;
1133 uschar *submission_name        = NULL;
1134 BOOL    suppress_local_fixups  = FALSE;
1135 BOOL    synchronous_delivery   = FALSE;
1136 BOOL    syslog_duplication     = TRUE;
1137 int     syslog_facility        = LOG_MAIL;
1138 uschar *syslog_processname     = US"exim";
1139 BOOL    syslog_timestamp       = TRUE;
1140 uschar *system_filter          = NULL;
1141
1142 uschar *system_filter_directory_transport = NULL;
1143 uschar *system_filter_file_transport = NULL;
1144 uschar *system_filter_pipe_transport = NULL;
1145 uschar *system_filter_reply_transport = NULL;
1146
1147 gid_t   system_filter_gid      = 0;
1148 BOOL    system_filter_gid_set  = FALSE;
1149 uid_t   system_filter_uid      = 0;
1150 BOOL    system_filter_uid_set  = FALSE;
1151 BOOL    system_filtering       = FALSE;
1152
1153 BOOL    tcp_nodelay            = TRUE;
1154 int     thismessage_size_limit = 0;
1155 int     timeout_frozen_after   = 0;
1156 BOOL    timestamps_utc         = FALSE;
1157
1158 transport_instance  *transports = NULL;
1159
1160 transport_instance  transport_defaults = {
1161     NULL,                     /* chain pointer */
1162     NULL,                     /* name */
1163     NULL,                     /* info */
1164     NULL,                     /* private options block pointer */
1165     NULL,                     /* driver name */
1166     NULL,                     /* setup entry point */
1167     1,                        /* batch_max */
1168     NULL,                     /* batch_id */
1169     NULL,                     /* home_dir */
1170     NULL,                     /* current_dir */
1171     TRUE,                     /* multi-domain */
1172     FALSE,                    /* overrides_hosts */
1173     100,                      /* max_addresses */
1174     500,                      /* connection_max_messages */
1175     FALSE,                    /* deliver_as_creator */
1176     FALSE,                    /* disable_logging */
1177     FALSE,                    /* initgroups */
1178     FALSE,                    /* uid_set */
1179     FALSE,                    /* gid_set */
1180     (uid_t)(-1),              /* uid */
1181     (gid_t)(-1),              /* gid */
1182     NULL,                     /* expand_uid */
1183     NULL,                     /* expand_gid */
1184     NULL,                     /* warn_message */
1185     NULL,                     /* shadow */
1186     NULL,                     /* shadow_condition */
1187     NULL,                     /* filter_command */
1188     NULL,                     /* add_headers */
1189     NULL,                     /* remove_headers */
1190     NULL,                     /* return_path */
1191     NULL,                     /* debug_string */
1192     NULL,                     /* message_size_limit */
1193     NULL,                     /* headers_rewrite */
1194     NULL,                     /* rewrite_rules */
1195     0,                        /* rewrite_existflags */
1196     300,                      /* filter_timeout */
1197     FALSE,                    /* body_only */
1198     FALSE,                    /* delivery_date_add */
1199     FALSE,                    /* envelope_to_add */
1200     FALSE,                    /* headers_only */
1201     FALSE,                    /* rcpt_include_affixes */
1202     FALSE,                    /* return_path_add */
1203     FALSE,                    /* return_output */
1204     FALSE,                    /* return_fail_output */
1205     FALSE,                    /* log_output */
1206     FALSE,                    /* log_fail_output */
1207     FALSE,                    /* log_defer_output */
1208     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1209                                  1 nor 0 so can detect unset */
1210 };
1211
1212 int     transport_count;
1213 uschar **transport_filter_argv  = NULL;
1214 int     transport_filter_timeout;
1215 BOOL    transport_filter_timed_out = FALSE;
1216 int     transport_write_timeout= 0;
1217
1218 tree_node  *tree_dns_fails     = NULL;
1219 tree_node  *tree_duplicates    = NULL;
1220 tree_node  *tree_nonrecipients = NULL;
1221 tree_node  *tree_unusable      = NULL;
1222
1223 BOOL    trusted_caller         = FALSE;
1224 gid_t  *trusted_groups         = NULL;
1225 uid_t  *trusted_users          = NULL;
1226 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1227
1228 uschar *unknown_login          = NULL;
1229 uschar *unknown_username       = NULL;
1230 uschar *untrusted_set_sender   = NULL;
1231
1232 /*  A regex for matching a "From_" line in an incoming message, in the form
1233
1234     From ph10 Fri Jan  5 12:35 GMT 1996
1235
1236 which  the "mail" commands send to the MTA (undocumented, of course), or in
1237 the  form
1238
1239     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1240
1241 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1242 Because  of variations in time formats, just match up to the minutes. That
1243 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1244 so  just require one digit for hours and minutes. The weekday is also absent
1245 in  some forms. */
1246
1247 uschar *uucp_from_pattern      = US
1248    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1249    "(?:"                                          /* Non-extracting bracket */
1250    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1251    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1252    ")"                                            /* End alternation */
1253    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1254
1255 uschar *uucp_from_sender       = US"$1";
1256
1257 uschar *warn_message_file      = NULL;
1258 uschar *warnmsg_delay          = NULL;
1259 uschar *warnmsg_recipients     = NULL;
1260 BOOL    write_rejectlog        = TRUE;
1261
1262 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1263 uschar *version_date           = US"?";
1264 uschar *version_cnumber        = US"????";
1265 uschar *version_string         = US"?";
1266
1267 int     warning_count          = 0;
1268
1269 /*  End of globals.c */