src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.69 2007/02/06 10:00:24 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 uschar *iterate_item           = NULL;
 634
 635 int     journal_fd             = -1;
 636
 637 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 638
 639 uschar *eldap_dn               = NULL;
 640 int     load_average           = -2;
 641 BOOL    local_error_message    = FALSE;
 642 BOOL    local_from_check       = TRUE;
 643 uschar *local_from_prefix      = NULL;
 644 uschar *local_from_suffix      = NULL;
 645
 646 #if HAVE_IPV6
 647 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 648 #else
 649 uschar *local_interfaces       = US"0.0.0.0";
 650 #endif
 651
 652 uschar *local_scan_data        = NULL;
 653 int     local_scan_timeout     = 5*60;
 654 BOOL    local_sender_retain    = FALSE;
 655 gid_t   local_user_gid         = (gid_t)(-1);
 656 uid_t   local_user_uid         = (uid_t)(-1);
 657
 658 tree_node *localpartlist_anchor= NULL;
 659 int     localpartlist_count    = 0;
 660 uschar *log_buffer             = NULL;
 661 unsigned int log_extra_selector = LX_default;
 662 uschar *log_file_path          = US LOG_FILE_PATH
 663                            "\0<--------------Space to patch log_file_path->";
 664
 665 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 666 are the ones that get put into log_write_selector. They can be used in calls to
 667 log_write() to test for the bit. The options with LX_xxx identifiers have
 668 values greater than 0x80000000 and are put int log_extra_selector (without the
 669 top bit). They are never used in calls to log_write(), but are tested
 670 independently. This separation became necessary when the number of log
 671 selectors was getting close to filling a 32-bit word. */
 672
 673 /* Note that this list must be in alphabetical order. */
 674
 675 bit_table log_options[]        = {
 676   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 677   { US"address_rewrite",              L_address_rewrite },
 678   { US"all",                          L_all },
 679   { US"all_parents",                  L_all_parents },
 680   { US"arguments",                    LX_arguments },
 681   { US"connection_reject",            L_connection_reject },
 682   { US"delay_delivery",               L_delay_delivery },
 683   { US"deliver_time",                 LX_deliver_time },
 684   { US"delivery_size",                LX_delivery_size },
 685   { US"dnslist_defer",                L_dnslist_defer },
 686   { US"etrn",                         L_etrn },
 687   { US"host_lookup_failed",           L_host_lookup_failed },
 688   { US"ident_timeout",                LX_ident_timeout },
 689   { US"incoming_interface",           LX_incoming_interface },
 690   { US"incoming_port",                LX_incoming_port },
 691   { US"lost_incoming_connection",     L_lost_incoming_connection },
 692   { US"outgoing_port",                LX_outgoing_port },
 693   { US"pid",                          LX_pid },
 694   { US"queue_run",                    L_queue_run },
 695   { US"queue_time",                   LX_queue_time },
 696   { US"queue_time_overall",           LX_queue_time_overall },
 697   { US"received_recipients",          LX_received_recipients },
 698   { US"received_sender",              LX_received_sender },
 699   { US"rejected_header",              LX_rejected_header },
 700   { US"rejected_headers",             LX_rejected_header },
 701   { US"retry_defer",                  L_retry_defer },
 702   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 703   { US"sender_on_delivery",           LX_sender_on_delivery },
 704   { US"sender_verify_fail",           LX_sender_verify_fail },
 705   { US"size_reject",                  L_size_reject },
 706   { US"skip_delivery",                L_skip_delivery },
 707   { US"smtp_confirmation",            LX_smtp_confirmation },
 708   { US"smtp_connection",              L_smtp_connection },
 709   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 710   { US"smtp_no_mail",                 LX_smtp_no_mail },
 711   { US"smtp_protocol_error",          L_smtp_protocol_error },
 712   { US"smtp_syntax_error",            L_smtp_syntax_error },
 713   { US"subject",                      LX_subject },
 714   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 715   { US"tls_cipher",                   LX_tls_cipher },
 716   { US"tls_peerdn",                   LX_tls_peerdn },
 717   { US"unknown_in_list",              LX_unknown_in_list }
 718 };
 719
 720 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 721 int     log_reject_target      = 0;
 722 uschar *log_selector_string    = NULL;
 723 FILE   *log_stderr             = NULL;
 724 BOOL    log_testing_mode       = FALSE;
 725 BOOL    log_timezone           = FALSE;
 726 unsigned int log_write_selector= L_default;
 727 uschar *login_sender_address   = NULL;
 728 int     lookup_open_max        = 25;
 729 uschar *lookup_value           = NULL;
 730
 731 macro_item  *macros            = NULL;
 732 uschar *mailstore_basename     = NULL;
 733 #ifdef WITH_CONTENT_SCAN
 734 uschar *malware_name           = NULL;  /* Virus Name */
 735 #endif
 736 int     max_username_length    = 0;
 737 int     message_age            = 0;
 738 uschar *message_body           = NULL;
 739 uschar *message_body_end       = NULL;
 740 int     message_body_size      = 0;
 741 int     message_body_visible   = 500;
 742 int     message_ended          = END_NOTSTARTED;
 743 uschar *message_headers        = NULL;
 744 uschar *message_id;
 745 uschar *message_id_domain      = NULL;
 746 uschar *message_id_text        = NULL;
 747 struct timeval message_id_tv   = { 0, 0 };
 748 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 749 uschar *message_id_external;
 750 int     message_linecount      = 0;
 751 BOOL    message_logs           = TRUE;
 752 int     message_size           = 0;
 753 uschar *message_size_limit     = US"50M";
 754 uschar  message_subdir[2]      = { 0, 0 };
 755 uschar *message_reference      = NULL;
 756
 757 /* MIME ACL expandables */
 758 #ifdef WITH_CONTENT_SCAN
 759 int     mime_anomaly_level     = 0;
 760 uschar *mime_anomaly_text      = NULL;
 761 uschar *mime_boundary          = NULL;
 762 uschar *mime_charset           = NULL;
 763 uschar *mime_content_description = NULL;
 764 uschar *mime_content_disposition = NULL;
 765 uschar *mime_content_id        = NULL;
 766 unsigned int mime_content_size = 0;
 767 uschar *mime_content_transfer_encoding = NULL;
 768 uschar *mime_content_type      = NULL;
 769 uschar *mime_decoded_filename  = NULL;
 770 uschar *mime_filename          = NULL;
 771 int     mime_is_multipart      = 0;
 772 int     mime_is_coverletter    = 0;
 773 int     mime_is_rfc822         = 0;
 774 int     mime_part_count        = -1;
 775 #endif
 776
 777 BOOL    mua_wrapper            = FALSE;
 778
 779 uid_t  *never_users            = NULL;
 780 #ifdef WITH_CONTENT_SCAN
 781 BOOL    no_mbox_unspool        = FALSE;
 782 #endif
 783 BOOL    no_multiline_responses = FALSE;
 784
 785 uid_t   original_euid;
 786 gid_t   originator_gid;
 787 uschar *originator_login       = NULL;
 788 uschar *originator_name        = NULL;
 789 uid_t   originator_uid;
 790 uschar *override_local_interfaces = NULL;
 791 uschar *override_pid_file_path = NULL;
 792
 793 BOOL    parse_allow_group      = FALSE;
 794 BOOL    parse_found_group      = FALSE;
 795 uschar *percent_hack_domains   = NULL;
 796 uschar *pid_file_path          = US PID_FILE_PATH
 797                            "\0<--------------Space to patch pid_file_path->";
 798 BOOL    pipelining_enable      = TRUE;
 799 uschar *pipelining_advertise_hosts = US"*";
 800 BOOL    preserve_message_logs  = FALSE;
 801 uschar *primary_hostname       = NULL;
 802 BOOL    print_topbitchars      = FALSE;
 803 uschar  process_info[PROCESS_INFO_SIZE];
 804 uschar *process_log_path       = NULL;
 805 BOOL    prod_requires_admin    = TRUE;
 806 uschar *prvscheck_address      = NULL;
 807 uschar *prvscheck_keynum       = NULL;
 808 uschar *prvscheck_result       = NULL;
 809
 810
 811 uschar *qualify_domain_recipient = NULL;
 812 uschar *qualify_domain_sender  = NULL;
 813 BOOL    queue_2stage           = FALSE;
 814 uschar *queue_domains          = NULL;
 815 int     queue_interval         = -1;
 816 BOOL    queue_list_requires_admin = TRUE;
 817 BOOL    queue_only             = FALSE;
 818 uschar *queue_only_file        = NULL;
 819 int     queue_only_load        = -1;
 820 BOOL    queue_only_override    = TRUE;
 821 BOOL    queue_only_policy      = FALSE;
 822 BOOL    queue_run_first_delivery = FALSE;
 823 BOOL    queue_run_force        = FALSE;
 824 BOOL    queue_run_in_order     = FALSE;
 825 BOOL    queue_run_local        = FALSE;
 826 int     queue_run_max          = 5;
 827 pid_t   queue_run_pid          = (pid_t)0;
 828 int     queue_run_pipe         = -1;
 829 BOOL    queue_running          = FALSE;
 830 BOOL    queue_smtp             = FALSE;
 831 uschar *queue_smtp_domains     = NULL;
 832
 833 unsigned int random_seed       = 0;
 834 tree_node *ratelimiters_cmd    = NULL;
 835 tree_node *ratelimiters_conn   = NULL;
 836 tree_node *ratelimiters_mail   = NULL;
 837 uschar *raw_active_hostname    = NULL;
 838 uschar *raw_sender             = NULL;
 839 uschar **raw_recipients        = NULL;
 840 int     raw_recipients_count   = 0;
 841
 842 int     rcpt_count             = 0;
 843 int     rcpt_fail_count        = 0;
 844 int     rcpt_defer_count       = 0;
 845 gid_t   real_gid;
 846 uid_t   real_uid;
 847 BOOL    really_exim            = TRUE;
 848 BOOL    receive_call_bombout   = FALSE;
 849 int     receive_linecount      = 0;
 850 int     receive_messagecount   = 0;
 851 int     receive_timeout        = 0;
 852 int     received_count         = 0;
 853 uschar *received_for           = NULL;
 854
 855 /*  This is the default text for Received headers generated by Exim. The
 856 date  will be automatically added on the end. */
 857
 858 uschar *received_header_text   = US
 859      "Received: "
 860      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 861      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 862      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 863      "by $primary_hostname "
 864      "${if def:received_protocol {with $received_protocol}} "
 865      #ifdef SUPPORT_TLS
 866      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 867      #endif
 868      "(Exim $version_number)\n\t"
 869      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 870      "id $message_exim_id"
 871      "${if def:received_for {\n\tfor $received_for}}"
 872      "\0<---------------Space to patch received_header_text->";
 873
 874 int     received_headers_max   = 30;
 875 uschar *received_protocol      = NULL;
 876 int     received_time          = 0;
 877 uschar *recipient_data         = NULL;
 878 uschar *recipient_unqualified_hosts = NULL;
 879 uschar *recipient_verify_failure = NULL;
 880 int     recipients_count       = 0;
 881 BOOL    recipients_discarded   = FALSE;
 882 recipient_item  *recipients_list = NULL;
 883 int     recipients_list_max    = 0;
 884 int     recipients_max         = 0;
 885 BOOL    recipients_max_reject  = FALSE;
 886 const pcre *regex_AUTH         = NULL;
 887 const pcre *regex_check_dns_names = NULL;
 888 const pcre *regex_From         = NULL;
 889 const pcre *regex_IGNOREQUOTA  = NULL;
 890 const pcre *regex_PIPELINING   = NULL;
 891 const pcre *regex_SIZE         = NULL;
 892 const pcre *regex_smtp_code    = NULL;
 893 const pcre *regex_ismsgid      = NULL;
 894 #ifdef WITH_CONTENT_SCAN
 895 uschar *regex_match_string     = NULL;
 896 #endif
 897 int     remote_delivery_count  = 0;
 898 int     remote_max_parallel    = 2;
 899 uschar *remote_sort_domains    = NULL;
 900 int     retry_data_expire      = 7*24*60*60;
 901 int     retry_interval_max     = 24*60*60;
 902 int     retry_maximum_timeout  = 0;        /* set from retry config */
 903 retry_config  *retries         = NULL;
 904 uschar *return_path            = NULL;
 905 BOOL    return_path_remove     = TRUE;
 906 int     rewrite_existflags     = 0;
 907 uschar *rfc1413_hosts          = US"*";
 908 int     rfc1413_query_timeout  = 5;
 909 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 910 uid_t   root_uid               = ROOT_UID;
 911
 912 router_instance  *routers  = NULL;
 913 router_instance  router_defaults = {
 914     NULL,                      /* chain pointer */
 915     NULL,                      /* name */
 916     NULL,                      /* info */
 917     NULL,                      /* private options block pointer */
 918     NULL,                      /* driver name */
 919
 920     NULL,                      /* address_data */
 921 #ifdef EXPERIMENTAL_BRIGHTMAIL
 922     NULL,                      /* bmi_rule */
 923 #endif
 924     NULL,                      /* cannot_route_message */
 925     NULL,                      /* condition */
 926     NULL,                      /* current_directory */
 927     NULL,                      /* debug_string */
 928     NULL,                      /* domains */
 929     NULL,                      /* errors_to */
 930     NULL,                      /* expand_gid */
 931     NULL,                      /* expand_uid */
 932     NULL,                      /* expand_more */
 933     NULL,                      /* expand_unseen */
 934     NULL,                      /* extra_headers */
 935     NULL,                      /* fallback_hosts */
 936     NULL,                      /* home_directory */
 937     NULL,                      /* ignore_target_hosts */
 938     NULL,                      /* local_parts */
 939     NULL,                      /* pass_router_name */
 940     NULL,                      /* prefix */
 941     NULL,                      /* redirect_router_name */
 942     NULL,                      /* remove_headers */
 943     NULL,                      /* require_files */
 944     NULL,                      /* router_home_directory */
 945     US"freeze",                /* self */
 946     NULL,                      /* senders */
 947     NULL,                      /* suffix */
 948     NULL,                      /* translate_ip_address */
 949     NULL,                      /* transport_name */
 950
 951     TRUE,                      /* address_test */
 952 #ifdef EXPERIMENTAL_BRIGHTMAIL
 953     FALSE,                     /* bmi_deliver_alternate */
 954     FALSE,                     /* bmi_deliver_default */
 955     FALSE,                     /* bmi_dont_deliver */
 956 #endif
 957     TRUE,                      /* expn */
 958     FALSE,                     /* caseful_local_part */
 959     FALSE,                     /* check_local_user */
 960     FALSE,                     /* disable_logging */
 961     FALSE,                     /* fail_verify_recipient */
 962     FALSE,                     /* fail_verify_sender */
 963     FALSE,                     /* gid_set */
 964     FALSE,                     /* initgroups */
 965     TRUE_UNSET,                /* log_as_local */
 966     TRUE,                      /* more */
 967     FALSE,                     /* pass_on_timeout */
 968     FALSE,                     /* prefix_optional */
 969     TRUE,                      /* repeat_use */
 970     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 971     FALSE,                     /* same_domain_copy_routing */
 972     FALSE,                     /* self_rewrite */
 973     FALSE,                     /* suffix_optional */
 974     FALSE,                     /* verify_only */
 975     TRUE,                      /* verify_recipient */
 976     TRUE,                      /* verify_sender */
 977     FALSE,                     /* uid_set */
 978     FALSE,                     /* unseen */
 979
 980     self_freeze,               /* self_code */
 981     (uid_t)(-1),               /* uid */
 982     (gid_t)(-1),               /* gid */
 983
 984     NULL,                      /* fallback_hostlist */
 985     NULL,                      /* transport instance */
 986     NULL,                      /* pass_router */
 987     NULL                       /* redirect_router */
 988 };
 989
 990 ip_address_item *running_interfaces = NULL;
 991 BOOL    running_in_test_harness = FALSE;
 992
 993 /* This is a weird one. The following string gets patched in the binary by the
 994 script that sets up a copy of Exim for running in the test harness. It seems
 995 that compilers are now clever, and share constant strings if they can.
 996 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 997 make use of the end of this string in order to save space. So the patching then
 998 wrecks this. We default this optimization by adding some additional characters
 999 onto the end of the string. */
1000
1001 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1002
1003 int     runrc                  = 0;
1004
1005 uschar *search_error_message   = NULL;
1006 BOOL    search_find_defer      = FALSE;
1007 uschar *self_hostname          = NULL;
1008 uschar *sender_address         = NULL;
1009 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1010 uschar *sender_address_data    = NULL;
1011 BOOL    sender_address_forced  = FALSE;
1012 uschar *sender_address_unrewritten = NULL;
1013 uschar *sender_data            = NULL;
1014 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1015 uschar *sender_fullhost        = NULL;
1016 uschar *sender_helo_name       = NULL;
1017 uschar **sender_host_aliases   = &no_aliases;
1018 uschar *sender_host_address    = NULL;
1019 uschar *sender_host_authenticated = NULL;
1020 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1021 uschar *sender_host_name       = NULL;
1022 int     sender_host_port       = 0;
1023 BOOL    sender_host_notsocket  = FALSE;
1024 BOOL    sender_host_unknown    = FALSE;
1025 uschar *sender_ident           = NULL;
1026 BOOL    sender_local           = FALSE;
1027 BOOL    sender_name_forced     = FALSE;
1028 uschar *sender_rate            = NULL;
1029 uschar *sender_rate_limit      = NULL;
1030 uschar *sender_rate_period     = NULL;
1031 uschar *sender_rcvhost         = NULL;
1032 BOOL    sender_set_untrusted   = FALSE;
1033 uschar *sender_unqualified_hosts = NULL;
1034 uschar *sender_verify_failure = NULL;
1035 address_item *sender_verified_list  = NULL;
1036 address_item *sender_verified_failed = NULL;
1037 int     sender_verified_rc     = -1;
1038 BOOL    sender_verified_responded = FALSE;
1039 uschar *sending_ip_address     = NULL;
1040 int     sending_port           = -1;
1041 volatile  BOOL sigalrm_seen    = FALSE;
1042 uschar **sighup_argv           = NULL;
1043 int     smtp_accept_count      = 0;
1044 BOOL    smtp_accept_keepalive  = TRUE;
1045 int     smtp_accept_max        = 20;
1046 int     smtp_accept_max_nonmail= 10;
1047 uschar *smtp_accept_max_nonmail_hosts = US"*";
1048 int     smtp_accept_max_per_connection = 1000;
1049 uschar *smtp_accept_max_per_host = NULL;
1050 int     smtp_accept_queue      = 0;
1051 int     smtp_accept_queue_per_connection = 10;
1052 int     smtp_accept_reserve    = 0;
1053 uschar *smtp_active_hostname   = NULL;
1054 BOOL    smtp_authenticated     = FALSE;
1055 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1056                              "Exim $version_number $tod_full"
1057                              "\0<---------------Space to patch smtp_banner->";
1058 BOOL    smtp_batched_input     = FALSE;
1059 BOOL    smtp_check_spool_space = TRUE;
1060 int     smtp_ch_index          = 0;
1061 uschar *smtp_cmd_argument      = NULL;
1062 uschar *smtp_cmd_buffer        = NULL;
1063 time_t  smtp_connection_start  = 0;
1064 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1065 int     smtp_connect_backlog   = 20;
1066 double  smtp_delay_mail        = 0.0;
1067 double  smtp_delay_rcpt        = 0.0;
1068 BOOL    smtp_enforce_sync      = TRUE;
1069 FILE   *smtp_in                = NULL;
1070 BOOL    smtp_input             = FALSE;
1071 int     smtp_load_reserve      = -1;
1072 int     smtp_mailcmd_count     = 0;
1073 FILE   *smtp_out               = NULL;
1074 uschar *smtp_etrn_command      = NULL;
1075 BOOL    smtp_etrn_serialize    = TRUE;
1076 int     smtp_max_synprot_errors= 3;
1077 int     smtp_max_unknown_commands = 3;
1078 uschar *smtp_ratelimit_hosts   = NULL;
1079 uschar *smtp_ratelimit_mail    = NULL;
1080 uschar *smtp_ratelimit_rcpt    = NULL;
1081 uschar *smtp_read_error        = US"";
1082 int     smtp_receive_timeout   = 5*60;
1083 uschar *smtp_reserve_hosts     = NULL;
1084 BOOL    smtp_return_error_details = FALSE;
1085 int     smtp_rlm_base          = 0;
1086 double  smtp_rlm_factor        = 0.0;
1087 int     smtp_rlm_limit         = 0;
1088 int     smtp_rlm_threshold     = INT_MAX;
1089 int     smtp_rlr_base          = 0;
1090 double  smtp_rlr_factor        = 0.0;
1091 int     smtp_rlr_limit         = 0;
1092 int     smtp_rlr_threshold     = INT_MAX;
1093 BOOL    smtp_use_pipelining    = FALSE;
1094 BOOL    smtp_use_size          = FALSE;
1095
1096 #ifdef WITH_CONTENT_SCAN
1097 uschar *spamd_address          = US"127.0.0.1 783";
1098 uschar *spam_bar               = NULL;
1099 uschar *spam_report            = NULL;
1100 uschar *spam_score             = NULL;
1101 uschar *spam_score_int         = NULL;
1102 #endif
1103 #ifdef EXPERIMENTAL_SPF
1104 uschar *spf_header_comment     = NULL;
1105 uschar *spf_received           = NULL;
1106 uschar *spf_result             = NULL;
1107 uschar *spf_smtp_comment       = NULL;
1108 #endif
1109
1110 BOOL    split_spool_directory  = FALSE;
1111 uschar *spool_directory        = US SPOOL_DIRECTORY
1112                            "\0<--------------Space to patch spool_directory->";
1113 #ifdef EXPERIMENTAL_SRS
1114 uschar *srs_config             = NULL;
1115 uschar *srs_db_address         = NULL;
1116 uschar *srs_db_key             = NULL;
1117 int     srs_hashlength         = 6;
1118 int     srs_hashmin            = -1;
1119 int     srs_maxage             = 31;
1120 uschar *srs_orig_recipient     = NULL;
1121 uschar *srs_orig_sender        = NULL;
1122 uschar *srs_recipient          = NULL;
1123 uschar *srs_secrets            = NULL;
1124 uschar *srs_status             = NULL;
1125 BOOL    srs_usehash            = TRUE;
1126 BOOL    srs_usetimestamp       = TRUE;
1127 #endif
1128 BOOL    strict_acl_vars        = FALSE;
1129 int     string_datestamp_offset= -1;
1130 BOOL    strip_excess_angle_brackets = FALSE;
1131 BOOL    strip_trailing_dot     = FALSE;
1132 uschar *submission_domain      = NULL;
1133 BOOL    submission_mode        = FALSE;
1134 uschar *submission_name        = NULL;
1135 BOOL    suppress_local_fixups  = FALSE;
1136 BOOL    synchronous_delivery   = FALSE;
1137 BOOL    syslog_duplication     = TRUE;
1138 int     syslog_facility        = LOG_MAIL;
1139 uschar *syslog_processname     = US"exim";
1140 BOOL    syslog_timestamp       = TRUE;
1141 uschar *system_filter          = NULL;
1142
1143 uschar *system_filter_directory_transport = NULL;
1144 uschar *system_filter_file_transport = NULL;
1145 uschar *system_filter_pipe_transport = NULL;
1146 uschar *system_filter_reply_transport = NULL;
1147
1148 gid_t   system_filter_gid      = 0;
1149 BOOL    system_filter_gid_set  = FALSE;
1150 uid_t   system_filter_uid      = 0;
1151 BOOL    system_filter_uid_set  = FALSE;
1152 BOOL    system_filtering       = FALSE;
1153
1154 BOOL    tcp_nodelay            = TRUE;
1155 int     thismessage_size_limit = 0;
1156 int     timeout_frozen_after   = 0;
1157 BOOL    timestamps_utc         = FALSE;
1158
1159 transport_instance  *transports = NULL;
1160
1161 transport_instance  transport_defaults = {
1162     NULL,                     /* chain pointer */
1163     NULL,                     /* name */
1164     NULL,                     /* info */
1165     NULL,                     /* private options block pointer */
1166     NULL,                     /* driver name */
1167     NULL,                     /* setup entry point */
1168     1,                        /* batch_max */
1169     NULL,                     /* batch_id */
1170     NULL,                     /* home_dir */
1171     NULL,                     /* current_dir */
1172     TRUE,                     /* multi-domain */
1173     FALSE,                    /* overrides_hosts */
1174     100,                      /* max_addresses */
1175     500,                      /* connection_max_messages */
1176     FALSE,                    /* deliver_as_creator */
1177     FALSE,                    /* disable_logging */
1178     FALSE,                    /* initgroups */
1179     FALSE,                    /* uid_set */
1180     FALSE,                    /* gid_set */
1181     (uid_t)(-1),              /* uid */
1182     (gid_t)(-1),              /* gid */
1183     NULL,                     /* expand_uid */
1184     NULL,                     /* expand_gid */
1185     NULL,                     /* warn_message */
1186     NULL,                     /* shadow */
1187     NULL,                     /* shadow_condition */
1188     NULL,                     /* filter_command */
1189     NULL,                     /* add_headers */
1190     NULL,                     /* remove_headers */
1191     NULL,                     /* return_path */
1192     NULL,                     /* debug_string */
1193     NULL,                     /* message_size_limit */
1194     NULL,                     /* headers_rewrite */
1195     NULL,                     /* rewrite_rules */
1196     0,                        /* rewrite_existflags */
1197     300,                      /* filter_timeout */
1198     FALSE,                    /* body_only */
1199     FALSE,                    /* delivery_date_add */
1200     FALSE,                    /* envelope_to_add */
1201     FALSE,                    /* headers_only */
1202     FALSE,                    /* rcpt_include_affixes */
1203     FALSE,                    /* return_path_add */
1204     FALSE,                    /* return_output */
1205     FALSE,                    /* return_fail_output */
1206     FALSE,                    /* log_output */
1207     FALSE,                    /* log_fail_output */
1208     FALSE,                    /* log_defer_output */
1209     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1210                                  1 nor 0 so can detect unset */
1211 };
1212
1213 int     transport_count;
1214 uschar **transport_filter_argv  = NULL;
1215 int     transport_filter_timeout;
1216 BOOL    transport_filter_timed_out = FALSE;
1217 int     transport_write_timeout= 0;
1218
1219 tree_node  *tree_dns_fails     = NULL;
1220 tree_node  *tree_duplicates    = NULL;
1221 tree_node  *tree_nonrecipients = NULL;
1222 tree_node  *tree_unusable      = NULL;
1223
1224 BOOL    trusted_caller         = FALSE;
1225 gid_t  *trusted_groups         = NULL;
1226 uid_t  *trusted_users          = NULL;
1227 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1228
1229 uschar *unknown_login          = NULL;
1230 uschar *unknown_username       = NULL;
1231 uschar *untrusted_set_sender   = NULL;
1232
1233 /*  A regex for matching a "From_" line in an incoming message, in the form
1234
1235     From ph10 Fri Jan  5 12:35 GMT 1996
1236
1237 which  the "mail" commands send to the MTA (undocumented, of course), or in
1238 the  form
1239
1240     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1241
1242 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1243 Because  of variations in time formats, just match up to the minutes. That
1244 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1245 so  just require one digit for hours and minutes. The weekday is also absent
1246 in  some forms. */
1247
1248 uschar *uucp_from_pattern      = US
1249    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1250    "(?:"                                          /* Non-extracting bracket */
1251    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1252    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1253    ")"                                            /* End alternation */
1254    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1255
1256 uschar *uucp_from_sender       = US"$1";
1257
1258 uschar *warn_message_file      = NULL;
1259 uschar *warnmsg_delay          = NULL;
1260 uschar *warnmsg_recipients     = NULL;
1261 BOOL    write_rejectlog        = TRUE;
1262
1263 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1264 uschar *version_date           = US"?";
1265 uschar *version_cnumber        = US"????";
1266 uschar *version_string         = US"?";
1267
1268 int     warning_count          = 0;
1269
1270 /*  End of globals.c */