src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.79 2007/09/28 12:21:57 tom Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "client_condition", opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, client_condition)) },
  37   { "driver",        opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, driver_name)) },
  39   { "public_name",   opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, public_name)) },
  41   { "server_advertise_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, advertise_condition))},
  43   { "server_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_condition)) },
  45   { "server_debug_print", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, server_debug_string)) },
  47   { "server_mail_auth_condition", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  49   { "server_set_id", opt_stringptr | opt_public,
  50                  (void *)(offsetof(auth_instance, set_id)) }
  51 };
  52
  53 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  54
  55 /* An empty host aliases list. */
  56
  57 uschar *no_aliases             = NULL;
  58
  59
  60 /* For comments on these variables, see globals.h. I'm too idle to
  61 duplicate them here... */
  62
  63 #ifdef EXIM_PERL
  64 uschar *opt_perl_startup       = NULL;
  65 BOOL    opt_perl_at_start      = FALSE;
  66 BOOL    opt_perl_started       = FALSE;
  67 #endif
  68
  69 #ifdef EXPAND_DLFUNC
  70 tree_node *dlobj_anchor        = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_IBASE
  74 uschar *ibase_servers          = NULL;
  75 #endif
  76
  77 #ifdef LOOKUP_LDAP
  78 uschar *eldap_default_servers  = NULL;
  79 int     eldap_version          = -1;
  80 #endif
  81
  82 #ifdef LOOKUP_MYSQL
  83 uschar *mysql_servers          = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_ORACLE
  87 uschar *oracle_servers         = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_PGSQL
  91 uschar *pgsql_servers          = NULL;
  92 #endif
  93
  94 #ifdef LOOKUP_SQLITE
  95 int     sqlite_lock_timeout    = 5;
  96 #endif
  97
  98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  99 BOOL    move_frozen_messages   = FALSE;
 100 #endif
 101
 102 /* These variables are outside the #ifdef because it keeps the code less
 103 cluttered in several places (e.g. during logging) if we can always refer to
 104 them. Also, the tls_ variables are now always visible. */
 105
 106 BOOL    tls_active             = -1;
 107 BOOL    tls_certificate_verified = FALSE;
 108 uschar *tls_cipher             = NULL;
 109 BOOL    tls_on_connect         = FALSE;
 110 uschar *tls_on_connect_ports   = NULL;
 111 uschar *tls_peerdn             = NULL;
 112
 113 #ifdef SUPPORT_TLS
 114 uschar *gnutls_require_mac     = NULL;
 115 uschar *gnutls_require_kx      = NULL;
 116 uschar *gnutls_require_proto   = NULL;
 117 const pcre *regex_STARTTLS     = NULL;
 118 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 119 uschar *tls_certificate        = NULL;
 120 uschar *tls_crl                = NULL;
 121 uschar *tls_dhparam            = NULL;
 122 BOOL    tls_offered            = FALSE;
 123 uschar *tls_privatekey         = NULL;
 124 BOOL    tls_remember_esmtp     = FALSE;
 125 uschar *tls_require_ciphers    = NULL;
 126 uschar *tls_try_verify_hosts   = NULL;
 127 uschar *tls_verify_certificates= NULL;
 128 uschar *tls_verify_hosts       = NULL;
 129 #endif
 130
 131
 132 /* Input-reading functions for messages, so we can use special ones for
 133 incoming TCP/IP. The defaults use stdin. We never need these for any
 134 stand-alone tests. */
 135
 136 #ifndef STAND_ALONE
 137 int (*receive_getc)(void)      = stdin_getc;
 138 int (*receive_ungetc)(int)     = stdin_ungetc;
 139 int (*receive_feof)(void)      = stdin_feof;
 140 int (*receive_ferror)(void)    = stdin_ferror;
 141 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 142 #endif
 143
 144
 145 /* List of per-address expansion variables for clearing and saving/restoring
 146 when verifying one address while routing/verifying another. We have to have
 147 the size explicit, because it is referenced from more than one module. */
 148
 149 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 150   &deliver_address_data,
 151   &deliver_domain,
 152   &deliver_domain_data,
 153   &deliver_domain_orig,
 154   &deliver_domain_parent,
 155   &deliver_localpart,
 156   &deliver_localpart_data,
 157   &deliver_localpart_orig,
 158   &deliver_localpart_parent,
 159   &deliver_localpart_prefix,
 160   &deliver_localpart_suffix,
 161   (uschar **)(&deliver_recipients),
 162   &deliver_host,
 163   &deliver_home,
 164   &address_file,
 165   &address_pipe,
 166   &self_hostname,
 167   NULL };
 168
 169 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 170
 171 /* General global variables */
 172
 173 header_line *acl_added_headers = NULL;
 174 tree_node *acl_anchor          = NULL;
 175
 176 uschar *acl_not_smtp           = NULL;
 177 #ifdef WITH_CONTENT_SCAN
 178 uschar *acl_not_smtp_mime      = NULL;
 179 #endif
 180 uschar *acl_not_smtp_start     = NULL;
 181
 182 uschar *acl_smtp_auth          = NULL;
 183 uschar *acl_smtp_connect       = NULL;
 184 uschar *acl_smtp_data          = NULL;
 185 uschar *acl_smtp_etrn          = NULL;
 186 uschar *acl_smtp_expn          = NULL;
 187 uschar *acl_smtp_helo          = NULL;
 188 uschar *acl_smtp_mail          = NULL;
 189 uschar *acl_smtp_mailauth      = NULL;
 190 #ifdef WITH_CONTENT_SCAN
 191 uschar *acl_smtp_mime          = NULL;
 192 #endif
 193 uschar *acl_smtp_notquit       = NULL;
 194 uschar *acl_smtp_predata       = NULL;
 195 uschar *acl_smtp_quit          = NULL;
 196 uschar *acl_smtp_rcpt          = NULL;
 197 uschar *acl_smtp_starttls      = NULL;
 198 uschar *acl_smtp_vrfy          = NULL;
 199
 200 BOOL    acl_temp_details       = FALSE;
 201 tree_node *acl_var_c           = NULL;
 202 tree_node *acl_var_m           = NULL;
 203 uschar *acl_verify_message     = NULL;
 204 string_item *acl_warn_logged   = NULL;
 205
 206 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 207 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 208
 209 uschar *acl_wherenames[]       = { US"RCPT",
 210                                    US"MAIL",
 211                                    US"PREDATA",
 212                                    US"MIME",
 213                                    US"DATA",
 214                                    US"non-SMTP",
 215                                    US"AUTH",
 216                                    US"connection",
 217                                    US"ETRN",
 218                                    US"EXPN",
 219                                    US"EHLO or HELO",
 220                                    US"MAILAUTH",
 221                                    US"non-SMTP-start",
 222                                    US"NOTQUIT",
 223                                    US"QUIT",
 224                                    US"STARTTLS",
 225                                    US"VRFY"
 226                                  };
 227
 228 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 229                                    US"550",     /* MAIL */
 230                                    US"550",     /* PREDATA */
 231                                    US"550",     /* MIME */
 232                                    US"550",     /* DATA */
 233                                    US"0",       /* not SMTP; not relevant */
 234                                    US"503",     /* AUTH */
 235                                    US"550",     /* connect */
 236                                    US"458",     /* ETRN */
 237                                    US"550",     /* EXPN */
 238                                    US"550",     /* HELO/EHLO */
 239                                    US"0",       /* MAILAUTH; not relevant */
 240                                    US"0",       /* not SMTP; not relevant */
 241                                    US"0",       /* NOTQUIT; not relevant */
 242                                    US"0",       /* QUIT; not relevant */
 243                                    US"550",     /* STARTTLS */
 244                                    US"252"      /* VRFY */
 245                                  };
 246
 247 BOOL    active_local_from_check = FALSE;
 248 BOOL    active_local_sender_retain = FALSE;
 249 BOOL    accept_8bitmime        = FALSE;
 250 address_item  *addr_duplicate  = NULL;
 251
 252 address_item address_defaults = {
 253   NULL,                 /* next */
 254   NULL,                 /* parent */
 255   NULL,                 /* first */
 256   NULL,                 /* dupof */
 257   NULL,                 /* start_router */
 258   NULL,                 /* router */
 259   NULL,                 /* transport */
 260   NULL,                 /* host_list */
 261   NULL,                 /* host_used */
 262   NULL,                 /* fallback_hosts */
 263   NULL,                 /* reply */
 264   NULL,                 /* retries */
 265   NULL,                 /* address */
 266   NULL,                 /* unique */
 267   NULL,                 /* cc_local_part */
 268   NULL,                 /* lc_local_part */
 269   NULL,                 /* local_part */
 270   NULL,                 /* prefix */
 271   NULL,                 /* suffix */
 272   NULL,                 /* domain */
 273   NULL,                 /* address_retry_key */
 274   NULL,                 /* domain_retry_key */
 275   NULL,                 /* current_dir */
 276   NULL,                 /* home_dir */
 277   NULL,                 /* message */
 278   NULL,                 /* user_message */
 279   NULL,                 /* onetime_parent */
 280   NULL,                 /* pipe_expandn */
 281   NULL,                 /* return_filename */
 282   NULL,                 /* self_hostname */
 283   NULL,                 /* shadow_message */
 284   #ifdef SUPPORT_TLS
 285   NULL,                 /* cipher */
 286   NULL,                 /* peerdn */
 287   #endif
 288   (uid_t)(-1),          /* uid */
 289   (gid_t)(-1),          /* gid */
 290   0,                    /* flags */
 291   { 0 },                /* domain_cache - any larger array should be zeroed */
 292   { 0 },                /* localpart_cache - ditto */
 293   -1,                   /* mode */
 294   0,                    /* more_errno */
 295   ERRNO_UNKNOWNERROR,   /* basic_errno */
 296   0,                    /* child_count */
 297   -1,                   /* return_file */
 298   SPECIAL_NONE,         /* special_action */
 299   DEFER,                /* transport_return */
 300   {                     /* fields that are propagated to children */
 301     NULL,               /* address_data */
 302     NULL,               /* domain_data */
 303     NULL,               /* localpart_data */
 304     NULL,               /* errors_address */
 305     NULL,               /* extra_headers */
 306     NULL,               /* remove_headers */
 307 #ifdef EXPERIMENTAL_SRS
 308     NULL,               /* srs_sender */
 309 #endif
 310   }
 311 };
 312
 313 uschar *address_file           = NULL;
 314 uschar *address_pipe           = NULL;
 315 BOOL    address_test_mode      = FALSE;
 316 tree_node *addresslist_anchor  = NULL;
 317 int     addresslist_count      = 0;
 318 gid_t  *admin_groups           = NULL;
 319 BOOL    admin_user             = FALSE;
 320 BOOL    allow_auth_unadvertised= FALSE;
 321 BOOL    allow_domain_literals  = FALSE;
 322 BOOL    allow_mx_to_ip         = FALSE;
 323 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 324 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 325 BOOL    allow_utf8_domains     = FALSE;
 326 uschar *authenticated_id       = NULL;
 327 uschar *authenticated_sender   = NULL;
 328 BOOL    authentication_failed  = FALSE;
 329 auth_instance  *auths          = NULL;
 330 uschar *auth_advertise_hosts   = US"*";
 331 auth_instance auth_defaults    = {
 332     NULL,                      /* chain pointer */
 333     NULL,                      /* name */
 334     NULL,                      /* info */
 335     NULL,                      /* private options block pointer */
 336     NULL,                      /* driver_name */
 337     NULL,                      /* advertise_condition */
 338     NULL,                      /* client_condition */
 339     NULL,                      /* public_name */
 340     NULL,                      /* set_id */
 341     NULL,                      /* server_mail_auth_condition */
 342     NULL,                      /* server_debug_string */
 343     NULL,                      /* server_condition */
 344     FALSE,                     /* client */
 345     FALSE,                     /* server */
 346     FALSE                      /* advertised */
 347 };
 348
 349 uschar *auth_defer_msg         = US"reason not recorded";
 350 uschar *auth_defer_user_msg    = US"";
 351 uschar *auth_vars[AUTH_VARS];
 352 int     auto_thaw              = 0;
 353 #ifdef WITH_CONTENT_SCAN
 354 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 355 #endif
 356
 357 BOOL    background_daemon      = TRUE;
 358
 359 #if BASE_62 == 62
 360 uschar *base62_chars=
 361     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 362 #else
 363 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 364 #endif
 365
 366 uschar *bi_command             = NULL;
 367 uschar *big_buffer             = NULL;
 368 int     big_buffer_size        = BIG_BUFFER_SIZE;
 369 #ifdef EXPERIMENTAL_BRIGHTMAIL
 370 uschar *bmi_alt_location       = NULL;
 371 uschar *bmi_base64_tracker_verdict = NULL;
 372 uschar *bmi_base64_verdict     = NULL;
 373 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 374 int     bmi_deliver            = 1;
 375 int     bmi_run                = 0;
 376 uschar *bmi_verdicts           = NULL;
 377 #endif
 378 int     body_linecount         = 0;
 379 int     body_zerocount         = 0;
 380 uschar *bounce_message_file    = NULL;
 381 uschar *bounce_message_text    = NULL;
 382 uschar *bounce_recipient       = NULL;
 383 BOOL    bounce_return_body     = TRUE;
 384 BOOL    bounce_return_message  = TRUE;
 385 int     bounce_return_size_limit = 100*1024;
 386 uschar *bounce_sender_authentication = NULL;
 387 int     bsmtp_transaction_linecount = 0;
 388
 389 int     callout_cache_domain_positive_expire = 7*24*60*60;
 390 int     callout_cache_domain_negative_expire = 3*60*60;
 391 int     callout_cache_positive_expire = 24*60*60;
 392 int     callout_cache_negative_expire = 2*60*60;
 393 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 394 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 395 int     check_log_inodes       = 0;
 396 int     check_log_space        = 0;
 397 BOOL    check_rfc2047_length   = TRUE;
 398 int     check_spool_inodes     = 0;
 399 int     check_spool_space      = 0;
 400 int     clmacro_count          = 0;
 401 uschar *clmacros[MAX_CLMACROS];
 402 BOOL    config_changed         = FALSE;
 403 FILE   *config_file            = NULL;
 404 uschar *config_filename        = NULL;
 405 int     config_lineno          = 0;
 406 #ifdef CONFIGURE_GROUP
 407 gid_t   config_gid             = CONFIGURE_GROUP;
 408 #endif
 409 uschar *config_main_filelist   = US CONFIGURE_FILE
 410                          "\0<-----------Space to patch configure_filename->";
 411 uschar *config_main_filename   = NULL;
 412
 413 #ifdef CONFIGURE_OWNER
 414 uid_t   config_uid             = CONFIGURE_OWNER;
 415 #endif
 416
 417 int     connection_max_messages= -1;
 418 uschar *continue_hostname      = NULL;
 419 uschar *continue_host_address  = NULL;
 420 BOOL    continue_more          = FALSE;
 421 int     continue_sequence      = 1;
 422 uschar *continue_transport     = NULL;
 423
 424 uschar *csa_status             = NULL;
 425
 426 BOOL    daemon_listen          = FALSE;
 427 uschar *daemon_smtp_port       = US"smtp";
 428 int     daemon_startup_retries = 9;
 429 int     daemon_startup_sleep   = 30;
 430 BOOL    debug_daemon           = FALSE;
 431 int     debug_fd               = -1;
 432 FILE   *debug_file             = NULL;
 433 bit_table debug_options[]      = {
 434   { US"acl",            D_acl },
 435   { US"all",            D_all },
 436   { US"auth",           D_auth },
 437   { US"deliver",        D_deliver },
 438   { US"dns",            D_dns },
 439   { US"dnsbl",          D_dnsbl },
 440   { US"exec",           D_exec },
 441   { US"expand",         D_expand },
 442   { US"filter",         D_filter },
 443   { US"hints_lookup",   D_hints_lookup },
 444   { US"host_lookup",    D_host_lookup },
 445   { US"ident",          D_ident },
 446   { US"interface",      D_interface },
 447   { US"lists",          D_lists },
 448   { US"load",           D_load },
 449   { US"local_scan",     D_local_scan },
 450   { US"lookup",         D_lookup },
 451   { US"memory",         D_memory },
 452   { US"pid",            D_pid },
 453   { US"process_info",   D_process_info },
 454   { US"queue_run",      D_queue_run },
 455   { US"receive",        D_receive },
 456   { US"resolver",       D_resolver },
 457   { US"retry",          D_retry },
 458   { US"rewrite",        D_rewrite },
 459   { US"route",          D_route },
 460   { US"timestamp",      D_timestamp },
 461   { US"tls",            D_tls },
 462   { US"transport",      D_transport },
 463   { US"uid",            D_uid },
 464   { US"verify",         D_verify }
 465 };
 466 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 467 unsigned int debug_selector    = 0;
 468 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 469 uschar *delay_warning_condition=
 470   US"${if or {"
 471             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 472             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 473             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 474             "} {no}{yes}}";
 475 BOOL    delivery_date_remove   = TRUE;
 476 uschar *deliver_address_data   = NULL;
 477 int     deliver_datafile       = -1;
 478 uschar *deliver_domain         = NULL;
 479 uschar *deliver_domain_data    = NULL;
 480 uschar *deliver_domain_orig    = NULL;
 481 uschar *deliver_domain_parent  = NULL;
 482 BOOL    deliver_drop_privilege = FALSE;
 483 BOOL    deliver_firsttime      = FALSE;
 484 BOOL    deliver_force          = FALSE;
 485 BOOL    deliver_freeze         = FALSE;
 486 int     deliver_frozen_at      = 0;
 487 uschar *deliver_home           = NULL;
 488 uschar *deliver_host           = NULL;
 489 uschar *deliver_host_address   = NULL;
 490 uschar *deliver_in_buffer      = NULL;
 491 ino_t   deliver_inode          = 0;
 492 uschar *deliver_localpart      = NULL;
 493 uschar *deliver_localpart_data = NULL;
 494 uschar *deliver_localpart_orig = NULL;
 495 uschar *deliver_localpart_parent = NULL;
 496 uschar *deliver_localpart_prefix = NULL;
 497 uschar *deliver_localpart_suffix = NULL;
 498 BOOL    deliver_force_thaw     = FALSE;
 499 BOOL    deliver_manual_thaw    = FALSE;
 500 uschar *deliver_out_buffer     = NULL;
 501 int     deliver_queue_load_max = -1;
 502 address_item  *deliver_recipients = NULL;
 503 uschar *deliver_selectstring   = NULL;
 504 BOOL    deliver_selectstring_regex = FALSE;
 505 uschar *deliver_selectstring_sender = NULL;
 506 BOOL    deliver_selectstring_sender_regex = FALSE;
 507 #ifdef WITH_OLD_DEMIME
 508 int     demime_errorlevel      = 0;
 509 int     demime_ok              = 0;
 510 uschar *demime_reason          = NULL;
 511 #endif
 512 BOOL    disable_callout_flush  = FALSE;
 513 BOOL    disable_delay_flush    = FALSE;
 514 #ifdef ENABLE_DISABLE_FSYNC
 515 BOOL    disable_fsync          = FALSE;
 516 #endif
 517 BOOL    disable_ipv6           = FALSE;
 518 BOOL    disable_logging        = FALSE;
 519
 520 #ifdef EXPERIMENTAL_DOMAINKEYS
 521 uschar *dk_signing_domain      = NULL;
 522 uschar *dk_signing_selector    = NULL;
 523 int     dk_do_verify           = 0;
 524 #endif
 525
 526 #ifdef EXPERIMENTAL_DKIM
 527 uschar *dkim_signing_domain      = NULL;
 528 uschar *dkim_signing_selector    = NULL;
 529 int     dkim_do_verify           = 0;
 530 #endif
 531
 532 uschar *dns_again_means_nonexist = NULL;
 533 int     dns_csa_search_limit   = 5;
 534 BOOL    dns_csa_use_reverse    = TRUE;
 535 uschar *dns_ipv4_lookup        = NULL;
 536 int     dns_retrans            = 0;
 537 int     dns_retry              = 0;
 538 uschar *dnslist_domain         = NULL;
 539 uschar *dnslist_matched        = NULL;
 540 uschar *dnslist_text           = NULL;
 541 uschar *dnslist_value          = NULL;
 542 tree_node *domainlist_anchor   = NULL;
 543 int     domainlist_count       = 0;
 544 BOOL    dont_deliver           = FALSE;
 545 BOOL    dot_ends               = TRUE;
 546 BOOL    drop_cr                = FALSE;         /* No longer used */
 547 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 548
 549 BOOL    enable_dollar_recipients = FALSE;
 550 BOOL    envelope_to_remove     = TRUE;
 551 int     errno_quota            = ERRNO_QUOTA;
 552 uschar *errors_copy            = NULL;
 553 int     error_handling         = ERRORS_SENDER;
 554 uschar *errors_reply_to        = NULL;
 555 int     errors_sender_rc       = EXIT_FAILURE;
 556
 557 gid_t   exim_gid               = EXIM_GID;
 558 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 559 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 560                         "\0<---------------Space to patch exim_path->";
 561 uid_t   exim_uid               = EXIM_UID;
 562 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 563 int     expand_forbid          = 0;
 564 int     expand_nlength[EXPAND_MAXN+1];
 565 int     expand_nmax            = -1;
 566 uschar *expand_nstring[EXPAND_MAXN+1];
 567 BOOL    expand_string_forcedfail = FALSE;
 568 uschar *expand_string_message;
 569 BOOL    extract_addresses_remove_arguments = TRUE;
 570 uschar *extra_local_interfaces = NULL;
 571
 572 int     fake_response          = OK;
 573 uschar *fake_response_text     = US"Your message has been rejected but is "
 574                                    "being kept for evaluation.\nIf it was a "
 575                                    "legitimate message, it may still be "
 576                                    "delivered to the target recipient(s).";
 577 int     filter_n[FILTER_VARIABLE_COUNT];
 578 BOOL    filter_running         = FALSE;
 579 int     filter_sn[FILTER_VARIABLE_COUNT];
 580 int     filter_test            = FTEST_NONE;
 581 uschar *filter_test_sfile      = NULL;
 582 uschar *filter_test_ufile      = NULL;
 583 uschar *filter_thisaddress     = NULL;
 584 int     finduser_retries       = 0;
 585 #ifdef WITH_OLD_DEMIME
 586 uschar *found_extension        = NULL;
 587 #endif
 588 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 589 uschar *freeze_tell            = NULL;
 590 uschar *freeze_tell_config     = NULL;
 591 uschar *fudged_queue_times     = US"";
 592
 593 uschar *gecos_name             = NULL;
 594 uschar *gecos_pattern          = NULL;
 595 rewrite_rule  *global_rewrite_rules = NULL;
 596
 597 uschar *headers_charset        = US HEADERS_CHARSET;
 598 int     header_insert_maxlen   = 64 * 1024;
 599 header_line  *header_last      = NULL;
 600 header_line  *header_list      = NULL;
 601 int     header_maxsize         = HEADER_MAXSIZE;
 602 int     header_line_maxsize    = 0;
 603
 604 header_name header_names[] = {
 605   { US"bcc",            3, TRUE,  htype_bcc },
 606   { US"cc",             2, TRUE,  htype_cc },
 607   { US"date",           4, TRUE,  htype_date },
 608   { US"delivery-date", 13, FALSE, htype_delivery_date },
 609   { US"envelope-to",   11, FALSE, htype_envelope_to },
 610   { US"from",           4, TRUE,  htype_from },
 611   { US"message-id",    10, TRUE,  htype_id },
 612   { US"received",       8, FALSE, htype_received },
 613   { US"reply-to",       8, FALSE, htype_reply_to },
 614   { US"return-path",   11, FALSE, htype_return_path },
 615   { US"sender",         6, TRUE,  htype_sender },
 616   { US"subject",        7, FALSE, htype_subject },
 617   { US"to",             2, TRUE,  htype_to }
 618 };
 619
 620 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 621
 622 BOOL    header_rewritten       = FALSE;
 623 uschar *helo_accept_junk_hosts = NULL;
 624 uschar *helo_allow_chars       = US"";
 625 uschar *helo_lookup_domains    = US"@ : @[]";
 626 uschar *helo_try_verify_hosts  = NULL;
 627 BOOL    helo_verified          = FALSE;
 628 BOOL    helo_verify_failed     = FALSE;
 629 uschar *helo_verify_hosts      = NULL;
 630 uschar *hex_digits             = US"0123456789abcdef";
 631 uschar *hold_domains           = NULL;
 632 BOOL    host_checking          = FALSE;
 633 BOOL    host_checking_callout  = FALSE;
 634 uschar *host_data              = NULL;
 635 BOOL    host_find_failed_syntax= FALSE;
 636 uschar *host_lookup            = NULL;
 637 BOOL    host_lookup_deferred   = FALSE;
 638 BOOL    host_lookup_failed     = FALSE;
 639 uschar *host_lookup_order      = US"bydns:byaddr";
 640 uschar *host_lookup_msg        = US"";
 641 int     host_number            = 0;
 642 uschar *host_number_string     = NULL;
 643 uschar *host_reject_connection = NULL;
 644 tree_node *hostlist_anchor     = NULL;
 645 int     hostlist_count         = 0;
 646 uschar *hosts_treat_as_local   = NULL;
 647 uschar *hosts_connection_nolog = NULL;
 648
 649 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 650 BOOL    ignore_fromline_local  = FALSE;
 651 uschar *ignore_fromline_hosts  = NULL;
 652 uschar *interface_address      = NULL;
 653 int     interface_port         = -1;
 654 BOOL    is_inetd               = FALSE;
 655 uschar *iterate_item           = NULL;
 656
 657 int     journal_fd             = -1;
 658
 659 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 660
 661 uschar *eldap_dn               = NULL;
 662 int     load_average           = -2;
 663 BOOL    local_error_message    = FALSE;
 664 BOOL    local_from_check       = TRUE;
 665 uschar *local_from_prefix      = NULL;
 666 uschar *local_from_suffix      = NULL;
 667
 668 #if HAVE_IPV6
 669 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 670 #else
 671 uschar *local_interfaces       = US"0.0.0.0";
 672 #endif
 673
 674 uschar *local_scan_data        = NULL;
 675 int     local_scan_timeout     = 5*60;
 676 BOOL    local_sender_retain    = FALSE;
 677 gid_t   local_user_gid         = (gid_t)(-1);
 678 uid_t   local_user_uid         = (uid_t)(-1);
 679
 680 tree_node *localpartlist_anchor= NULL;
 681 int     localpartlist_count    = 0;
 682 uschar *log_buffer             = NULL;
 683 unsigned int log_extra_selector = LX_default;
 684 uschar *log_file_path          = US LOG_FILE_PATH
 685                            "\0<--------------Space to patch log_file_path->";
 686
 687 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 688 are the ones that get put into log_write_selector. They can be used in calls to
 689 log_write() to test for the bit. The options with LX_xxx identifiers have
 690 values greater than 0x80000000 and are put int log_extra_selector (without the
 691 top bit). They are never used in calls to log_write(), but are tested
 692 independently. This separation became necessary when the number of log
 693 selectors was getting close to filling a 32-bit word. */
 694
 695 /* Note that this list must be in alphabetical order. */
 696
 697 bit_table log_options[]        = {
 698   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 699   { US"address_rewrite",              L_address_rewrite },
 700   { US"all",                          L_all },
 701   { US"all_parents",                  L_all_parents },
 702   { US"arguments",                    LX_arguments },
 703   { US"connection_reject",            L_connection_reject },
 704   { US"delay_delivery",               L_delay_delivery },
 705   { US"deliver_time",                 LX_deliver_time },
 706   { US"delivery_size",                LX_delivery_size },
 707   { US"dnslist_defer",                L_dnslist_defer },
 708   { US"etrn",                         L_etrn },
 709   { US"host_lookup_failed",           L_host_lookup_failed },
 710   { US"ident_timeout",                LX_ident_timeout },
 711   { US"incoming_interface",           LX_incoming_interface },
 712   { US"incoming_port",                LX_incoming_port },
 713   { US"lost_incoming_connection",     L_lost_incoming_connection },
 714   { US"outgoing_port",                LX_outgoing_port },
 715   { US"pid",                          LX_pid },
 716   { US"queue_run",                    L_queue_run },
 717   { US"queue_time",                   LX_queue_time },
 718   { US"queue_time_overall",           LX_queue_time_overall },
 719   { US"received_recipients",          LX_received_recipients },
 720   { US"received_sender",              LX_received_sender },
 721   { US"rejected_header",              LX_rejected_header },
 722   { US"rejected_headers",             LX_rejected_header },
 723   { US"retry_defer",                  L_retry_defer },
 724   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 725   { US"sender_on_delivery",           LX_sender_on_delivery },
 726   { US"sender_verify_fail",           LX_sender_verify_fail },
 727   { US"size_reject",                  L_size_reject },
 728   { US"skip_delivery",                L_skip_delivery },
 729   { US"smtp_confirmation",            LX_smtp_confirmation },
 730   { US"smtp_connection",              L_smtp_connection },
 731   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 732   { US"smtp_no_mail",                 LX_smtp_no_mail },
 733   { US"smtp_protocol_error",          L_smtp_protocol_error },
 734   { US"smtp_syntax_error",            L_smtp_syntax_error },
 735   { US"subject",                      LX_subject },
 736   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 737   { US"tls_cipher",                   LX_tls_cipher },
 738   { US"tls_peerdn",                   LX_tls_peerdn },
 739   { US"unknown_in_list",              LX_unknown_in_list }
 740 };
 741
 742 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 743 int     log_reject_target      = 0;
 744 uschar *log_selector_string    = NULL;
 745 FILE   *log_stderr             = NULL;
 746 BOOL    log_testing_mode       = FALSE;
 747 BOOL    log_timezone           = FALSE;
 748 unsigned int log_write_selector= L_default;
 749 uschar *login_sender_address   = NULL;
 750 int     lookup_open_max        = 25;
 751 uschar *lookup_value           = NULL;
 752
 753 macro_item  *macros            = NULL;
 754 uschar *mailstore_basename     = NULL;
 755 #ifdef WITH_CONTENT_SCAN
 756 uschar *malware_name           = NULL;  /* Virus Name */
 757 #endif
 758 int     max_received_linelength= 0;
 759 int     max_username_length    = 0;
 760 int     message_age            = 0;
 761 uschar *message_body           = NULL;
 762 uschar *message_body_end       = NULL;
 763 BOOL    message_body_newlines  = FALSE;
 764 int     message_body_size      = 0;
 765 int     message_body_visible   = 500;
 766 int     message_ended          = END_NOTSTARTED;
 767 uschar *message_headers        = NULL;
 768 uschar *message_id;
 769 uschar *message_id_domain      = NULL;
 770 uschar *message_id_text        = NULL;
 771 struct timeval message_id_tv   = { 0, 0 };
 772 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 773 uschar *message_id_external;
 774 int     message_linecount      = 0;
 775 BOOL    message_logs           = TRUE;
 776 int     message_size           = 0;
 777 uschar *message_size_limit     = US"50M";
 778 uschar  message_subdir[2]      = { 0, 0 };
 779 uschar *message_reference      = NULL;
 780
 781 /* MIME ACL expandables */
 782 #ifdef WITH_CONTENT_SCAN
 783 int     mime_anomaly_level     = 0;
 784 uschar *mime_anomaly_text      = NULL;
 785 uschar *mime_boundary          = NULL;
 786 uschar *mime_charset           = NULL;
 787 uschar *mime_content_description = NULL;
 788 uschar *mime_content_disposition = NULL;
 789 uschar *mime_content_id        = NULL;
 790 unsigned int mime_content_size = 0;
 791 uschar *mime_content_transfer_encoding = NULL;
 792 uschar *mime_content_type      = NULL;
 793 uschar *mime_decoded_filename  = NULL;
 794 uschar *mime_filename          = NULL;
 795 int     mime_is_multipart      = 0;
 796 int     mime_is_coverletter    = 0;
 797 int     mime_is_rfc822         = 0;
 798 int     mime_part_count        = -1;
 799 #endif
 800
 801 BOOL    mua_wrapper            = FALSE;
 802
 803 uid_t  *never_users            = NULL;
 804 #ifdef WITH_CONTENT_SCAN
 805 BOOL    no_mbox_unspool        = FALSE;
 806 #endif
 807 BOOL    no_multiline_responses = FALSE;
 808
 809 uid_t   original_euid;
 810 gid_t   originator_gid;
 811 uschar *originator_login       = NULL;
 812 uschar *originator_name        = NULL;
 813 uid_t   originator_uid;
 814 uschar *override_local_interfaces = NULL;
 815 uschar *override_pid_file_path = NULL;
 816
 817 BOOL    parse_allow_group      = FALSE;
 818 BOOL    parse_found_group      = FALSE;
 819 uschar *percent_hack_domains   = NULL;
 820 uschar *pid_file_path          = US PID_FILE_PATH
 821                            "\0<--------------Space to patch pid_file_path->";
 822 BOOL    pipelining_enable      = TRUE;
 823 uschar *pipelining_advertise_hosts = US"*";
 824 BOOL    preserve_message_logs  = FALSE;
 825 uschar *primary_hostname       = NULL;
 826 BOOL    print_topbitchars      = FALSE;
 827 uschar  process_info[PROCESS_INFO_SIZE];
 828 uschar *process_log_path       = NULL;
 829 BOOL    prod_requires_admin    = TRUE;
 830 uschar *prvscheck_address      = NULL;
 831 uschar *prvscheck_keynum       = NULL;
 832 uschar *prvscheck_result       = NULL;
 833
 834
 835 uschar *qualify_domain_recipient = NULL;
 836 uschar *qualify_domain_sender  = NULL;
 837 BOOL    queue_2stage           = FALSE;
 838 uschar *queue_domains          = NULL;
 839 int     queue_interval         = -1;
 840 BOOL    queue_list_requires_admin = TRUE;
 841 BOOL    queue_only             = FALSE;
 842 uschar *queue_only_file        = NULL;
 843 int     queue_only_load        = -1;
 844 BOOL    queue_only_load_latch  = TRUE;
 845 BOOL    queue_only_override    = TRUE;
 846 BOOL    queue_only_policy      = FALSE;
 847 BOOL    queue_run_first_delivery = FALSE;
 848 BOOL    queue_run_force        = FALSE;
 849 BOOL    queue_run_in_order     = FALSE;
 850 BOOL    queue_run_local        = FALSE;
 851 int     queue_run_max          = 5;
 852 pid_t   queue_run_pid          = (pid_t)0;
 853 int     queue_run_pipe         = -1;
 854 BOOL    queue_running          = FALSE;
 855 BOOL    queue_smtp             = FALSE;
 856 uschar *queue_smtp_domains     = NULL;
 857
 858 unsigned int random_seed       = 0;
 859 tree_node *ratelimiters_cmd    = NULL;
 860 tree_node *ratelimiters_conn   = NULL;
 861 tree_node *ratelimiters_mail   = NULL;
 862 uschar *raw_active_hostname    = NULL;
 863 uschar *raw_sender             = NULL;
 864 uschar **raw_recipients        = NULL;
 865 int     raw_recipients_count   = 0;
 866
 867 int     rcpt_count             = 0;
 868 int     rcpt_fail_count        = 0;
 869 int     rcpt_defer_count       = 0;
 870 gid_t   real_gid;
 871 uid_t   real_uid;
 872 BOOL    really_exim            = TRUE;
 873 BOOL    receive_call_bombout   = FALSE;
 874 int     receive_linecount      = 0;
 875 int     receive_messagecount   = 0;
 876 int     receive_timeout        = 0;
 877 int     received_count         = 0;
 878 uschar *received_for           = NULL;
 879
 880 /*  This is the default text for Received headers generated by Exim. The
 881 date  will be automatically added on the end. */
 882
 883 uschar *received_header_text   = US
 884      "Received: "
 885      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 886      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 887      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 888      "by $primary_hostname "
 889      "${if def:received_protocol {with $received_protocol}} "
 890      #ifdef SUPPORT_TLS
 891      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 892      #endif
 893      "(Exim $version_number)\n\t"
 894      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 895      "id $message_exim_id"
 896      "${if def:received_for {\n\tfor $received_for}}"
 897      "\0<---------------Space to patch received_header_text->";
 898
 899 int     received_headers_max   = 30;
 900 uschar *received_protocol      = NULL;
 901 int     received_time          = 0;
 902 uschar *recipient_data         = NULL;
 903 uschar *recipient_unqualified_hosts = NULL;
 904 uschar *recipient_verify_failure = NULL;
 905 int     recipients_count       = 0;
 906 BOOL    recipients_discarded   = FALSE;
 907 recipient_item  *recipients_list = NULL;
 908 int     recipients_list_max    = 0;
 909 int     recipients_max         = 0;
 910 BOOL    recipients_max_reject  = FALSE;
 911 const pcre *regex_AUTH         = NULL;
 912 const pcre *regex_check_dns_names = NULL;
 913 const pcre *regex_From         = NULL;
 914 const pcre *regex_IGNOREQUOTA  = NULL;
 915 const pcre *regex_PIPELINING   = NULL;
 916 const pcre *regex_SIZE         = NULL;
 917 const pcre *regex_smtp_code    = NULL;
 918 const pcre *regex_ismsgid      = NULL;
 919 #ifdef WITH_CONTENT_SCAN
 920 uschar *regex_match_string     = NULL;
 921 #endif
 922 int     remote_delivery_count  = 0;
 923 int     remote_max_parallel    = 2;
 924 uschar *remote_sort_domains    = NULL;
 925 int     retry_data_expire      = 7*24*60*60;
 926 int     retry_interval_max     = 24*60*60;
 927 int     retry_maximum_timeout  = 0;        /* set from retry config */
 928 retry_config  *retries         = NULL;
 929 uschar *return_path            = NULL;
 930 BOOL    return_path_remove     = TRUE;
 931 int     rewrite_existflags     = 0;
 932 uschar *rfc1413_hosts          = US"*";
 933 int     rfc1413_query_timeout  = 5;
 934 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 935 uid_t   root_uid               = ROOT_UID;
 936
 937 router_instance  *routers  = NULL;
 938 router_instance  router_defaults = {
 939     NULL,                      /* chain pointer */
 940     NULL,                      /* name */
 941     NULL,                      /* info */
 942     NULL,                      /* private options block pointer */
 943     NULL,                      /* driver name */
 944
 945     NULL,                      /* address_data */
 946 #ifdef EXPERIMENTAL_BRIGHTMAIL
 947     NULL,                      /* bmi_rule */
 948 #endif
 949     NULL,                      /* cannot_route_message */
 950     NULL,                      /* condition */
 951     NULL,                      /* current_directory */
 952     NULL,                      /* debug_string */
 953     NULL,                      /* domains */
 954     NULL,                      /* errors_to */
 955     NULL,                      /* expand_gid */
 956     NULL,                      /* expand_uid */
 957     NULL,                      /* expand_more */
 958     NULL,                      /* expand_unseen */
 959     NULL,                      /* extra_headers */
 960     NULL,                      /* fallback_hosts */
 961     NULL,                      /* home_directory */
 962     NULL,                      /* ignore_target_hosts */
 963     NULL,                      /* local_parts */
 964     NULL,                      /* pass_router_name */
 965     NULL,                      /* prefix */
 966     NULL,                      /* redirect_router_name */
 967     NULL,                      /* remove_headers */
 968     NULL,                      /* require_files */
 969     NULL,                      /* router_home_directory */
 970     US"freeze",                /* self */
 971     NULL,                      /* senders */
 972     NULL,                      /* suffix */
 973     NULL,                      /* translate_ip_address */
 974     NULL,                      /* transport_name */
 975
 976     TRUE,                      /* address_test */
 977 #ifdef EXPERIMENTAL_BRIGHTMAIL
 978     FALSE,                     /* bmi_deliver_alternate */
 979     FALSE,                     /* bmi_deliver_default */
 980     FALSE,                     /* bmi_dont_deliver */
 981 #endif
 982     TRUE,                      /* expn */
 983     FALSE,                     /* caseful_local_part */
 984     FALSE,                     /* check_local_user */
 985     FALSE,                     /* disable_logging */
 986     FALSE,                     /* fail_verify_recipient */
 987     FALSE,                     /* fail_verify_sender */
 988     FALSE,                     /* gid_set */
 989     FALSE,                     /* initgroups */
 990     TRUE_UNSET,                /* log_as_local */
 991     TRUE,                      /* more */
 992     FALSE,                     /* pass_on_timeout */
 993     FALSE,                     /* prefix_optional */
 994     TRUE,                      /* repeat_use */
 995     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 996     FALSE,                     /* same_domain_copy_routing */
 997     FALSE,                     /* self_rewrite */
 998     FALSE,                     /* suffix_optional */
 999     FALSE,                     /* verify_only */
1000     TRUE,                      /* verify_recipient */
1001     TRUE,                      /* verify_sender */
1002     FALSE,                     /* uid_set */
1003     FALSE,                     /* unseen */
1004
1005     self_freeze,               /* self_code */
1006     (uid_t)(-1),               /* uid */
1007     (gid_t)(-1),               /* gid */
1008
1009     NULL,                      /* fallback_hostlist */
1010     NULL,                      /* transport instance */
1011     NULL,                      /* pass_router */
1012     NULL                       /* redirect_router */
1013 };
1014
1015 ip_address_item *running_interfaces = NULL;
1016 BOOL    running_in_test_harness = FALSE;
1017
1018 /* This is a weird one. The following string gets patched in the binary by the
1019 script that sets up a copy of Exim for running in the test harness. It seems
1020 that compilers are now clever, and share constant strings if they can.
1021 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1022 make use of the end of this string in order to save space. So the patching then
1023 wrecks this. We defeat this optimization by adding some additional characters
1024 onto the end of the string. */
1025
1026 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1027
1028 int     runrc                  = 0;
1029
1030 uschar *search_error_message   = NULL;
1031 BOOL    search_find_defer      = FALSE;
1032 uschar *self_hostname          = NULL;
1033 uschar *sender_address         = NULL;
1034 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1035 uschar *sender_address_data    = NULL;
1036 BOOL    sender_address_forced  = FALSE;
1037 uschar *sender_address_unrewritten = NULL;
1038 uschar *sender_data            = NULL;
1039 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1040 uschar *sender_fullhost        = NULL;
1041 uschar *sender_helo_name       = NULL;
1042 uschar **sender_host_aliases   = &no_aliases;
1043 uschar *sender_host_address    = NULL;
1044 uschar *sender_host_authenticated = NULL;
1045 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1046 uschar *sender_host_name       = NULL;
1047 int     sender_host_port       = 0;
1048 BOOL    sender_host_notsocket  = FALSE;
1049 BOOL    sender_host_unknown    = FALSE;
1050 uschar *sender_ident           = NULL;
1051 BOOL    sender_local           = FALSE;
1052 BOOL    sender_name_forced     = FALSE;
1053 uschar *sender_rate            = NULL;
1054 uschar *sender_rate_limit      = NULL;
1055 uschar *sender_rate_period     = NULL;
1056 uschar *sender_rcvhost         = NULL;
1057 BOOL    sender_set_untrusted   = FALSE;
1058 uschar *sender_unqualified_hosts = NULL;
1059 uschar *sender_verify_failure = NULL;
1060 address_item *sender_verified_list  = NULL;
1061 address_item *sender_verified_failed = NULL;
1062 int     sender_verified_rc     = -1;
1063 BOOL    sender_verified_responded = FALSE;
1064 uschar *sending_ip_address     = NULL;
1065 int     sending_port           = -1;
1066 volatile  BOOL sigalrm_seen    = FALSE;
1067 uschar **sighup_argv           = NULL;
1068 int     smtp_accept_count      = 0;
1069 BOOL    smtp_accept_keepalive  = TRUE;
1070 int     smtp_accept_max        = 20;
1071 int     smtp_accept_max_nonmail= 10;
1072 uschar *smtp_accept_max_nonmail_hosts = US"*";
1073 int     smtp_accept_max_per_connection = 1000;
1074 uschar *smtp_accept_max_per_host = NULL;
1075 int     smtp_accept_queue      = 0;
1076 int     smtp_accept_queue_per_connection = 10;
1077 int     smtp_accept_reserve    = 0;
1078 uschar *smtp_active_hostname   = NULL;
1079 BOOL    smtp_authenticated     = FALSE;
1080 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1081                              "Exim $version_number $tod_full"
1082                              "\0<---------------Space to patch smtp_banner->";
1083 BOOL    smtp_batched_input     = FALSE;
1084 BOOL    smtp_check_spool_space = TRUE;
1085 int     smtp_ch_index          = 0;
1086 uschar *smtp_cmd_argument      = NULL;
1087 uschar *smtp_cmd_buffer        = NULL;
1088 time_t  smtp_connection_start  = 0;
1089 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1090 int     smtp_connect_backlog   = 20;
1091 double  smtp_delay_mail        = 0.0;
1092 double  smtp_delay_rcpt        = 0.0;
1093 BOOL    smtp_enforce_sync      = TRUE;
1094 FILE   *smtp_in                = NULL;
1095 BOOL    smtp_input             = FALSE;
1096 int     smtp_load_reserve      = -1;
1097 int     smtp_mailcmd_count     = 0;
1098 FILE   *smtp_out               = NULL;
1099 uschar *smtp_etrn_command      = NULL;
1100 BOOL    smtp_etrn_serialize    = TRUE;
1101 int     smtp_max_synprot_errors= 3;
1102 int     smtp_max_unknown_commands = 3;
1103 uschar *smtp_notquit_reason    = NULL;
1104 uschar *smtp_ratelimit_hosts   = NULL;
1105 uschar *smtp_ratelimit_mail    = NULL;
1106 uschar *smtp_ratelimit_rcpt    = NULL;
1107 uschar *smtp_read_error        = US"";
1108 int     smtp_receive_timeout   = 5*60;
1109 uschar *smtp_reserve_hosts     = NULL;
1110 BOOL    smtp_return_error_details = FALSE;
1111 int     smtp_rlm_base          = 0;
1112 double  smtp_rlm_factor        = 0.0;
1113 int     smtp_rlm_limit         = 0;
1114 int     smtp_rlm_threshold     = INT_MAX;
1115 int     smtp_rlr_base          = 0;
1116 double  smtp_rlr_factor        = 0.0;
1117 int     smtp_rlr_limit         = 0;
1118 int     smtp_rlr_threshold     = INT_MAX;
1119 BOOL    smtp_use_pipelining    = FALSE;
1120 BOOL    smtp_use_size          = FALSE;
1121
1122 #ifdef WITH_CONTENT_SCAN
1123 uschar *spamd_address          = US"127.0.0.1 783";
1124 uschar *spam_bar               = NULL;
1125 uschar *spam_report            = NULL;
1126 uschar *spam_score             = NULL;
1127 uschar *spam_score_int         = NULL;
1128 #endif
1129 #ifdef EXPERIMENTAL_SPF
1130 uschar *spf_header_comment     = NULL;
1131 uschar *spf_received           = NULL;
1132 uschar *spf_result             = NULL;
1133 uschar *spf_smtp_comment       = NULL;
1134 #endif
1135
1136 BOOL    split_spool_directory  = FALSE;
1137 uschar *spool_directory        = US SPOOL_DIRECTORY
1138                            "\0<--------------Space to patch spool_directory->";
1139 #ifdef EXPERIMENTAL_SRS
1140 uschar *srs_config             = NULL;
1141 uschar *srs_db_address         = NULL;
1142 uschar *srs_db_key             = NULL;
1143 int     srs_hashlength         = 6;
1144 int     srs_hashmin            = -1;
1145 int     srs_maxage             = 31;
1146 uschar *srs_orig_recipient     = NULL;
1147 uschar *srs_orig_sender        = NULL;
1148 uschar *srs_recipient          = NULL;
1149 uschar *srs_secrets            = NULL;
1150 uschar *srs_status             = NULL;
1151 BOOL    srs_usehash            = TRUE;
1152 BOOL    srs_usetimestamp       = TRUE;
1153 #endif
1154 BOOL    strict_acl_vars        = FALSE;
1155 int     string_datestamp_offset= -1;
1156 BOOL    strip_excess_angle_brackets = FALSE;
1157 BOOL    strip_trailing_dot     = FALSE;
1158 uschar *submission_domain      = NULL;
1159 BOOL    submission_mode        = FALSE;
1160 uschar *submission_name        = NULL;
1161 BOOL    suppress_local_fixups  = FALSE;
1162 BOOL    synchronous_delivery   = FALSE;
1163 BOOL    syslog_duplication     = TRUE;
1164 int     syslog_facility        = LOG_MAIL;
1165 uschar *syslog_processname     = US"exim";
1166 BOOL    syslog_timestamp       = TRUE;
1167 uschar *system_filter          = NULL;
1168
1169 uschar *system_filter_directory_transport = NULL;
1170 uschar *system_filter_file_transport = NULL;
1171 uschar *system_filter_pipe_transport = NULL;
1172 uschar *system_filter_reply_transport = NULL;
1173
1174 gid_t   system_filter_gid      = 0;
1175 BOOL    system_filter_gid_set  = FALSE;
1176 uid_t   system_filter_uid      = 0;
1177 BOOL    system_filter_uid_set  = FALSE;
1178 BOOL    system_filtering       = FALSE;
1179
1180 BOOL    tcp_nodelay            = TRUE;
1181 int     test_harness_load_avg  = 0;
1182 int     thismessage_size_limit = 0;
1183 int     timeout_frozen_after   = 0;
1184 BOOL    timestamps_utc         = FALSE;
1185
1186 transport_instance  *transports = NULL;
1187
1188 transport_instance  transport_defaults = {
1189     NULL,                     /* chain pointer */
1190     NULL,                     /* name */
1191     NULL,                     /* info */
1192     NULL,                     /* private options block pointer */
1193     NULL,                     /* driver name */
1194     NULL,                     /* setup entry point */
1195     1,                        /* batch_max */
1196     NULL,                     /* batch_id */
1197     NULL,                     /* home_dir */
1198     NULL,                     /* current_dir */
1199     TRUE,                     /* multi-domain */
1200     FALSE,                    /* overrides_hosts */
1201     100,                      /* max_addresses */
1202     500,                      /* connection_max_messages */
1203     FALSE,                    /* deliver_as_creator */
1204     FALSE,                    /* disable_logging */
1205     FALSE,                    /* initgroups */
1206     FALSE,                    /* uid_set */
1207     FALSE,                    /* gid_set */
1208     (uid_t)(-1),              /* uid */
1209     (gid_t)(-1),              /* gid */
1210     NULL,                     /* expand_uid */
1211     NULL,                     /* expand_gid */
1212     NULL,                     /* warn_message */
1213     NULL,                     /* shadow */
1214     NULL,                     /* shadow_condition */
1215     NULL,                     /* filter_command */
1216     NULL,                     /* add_headers */
1217     NULL,                     /* remove_headers */
1218     NULL,                     /* return_path */
1219     NULL,                     /* debug_string */
1220     NULL,                     /* message_size_limit */
1221     NULL,                     /* headers_rewrite */
1222     NULL,                     /* rewrite_rules */
1223     0,                        /* rewrite_existflags */
1224     300,                      /* filter_timeout */
1225     FALSE,                    /* body_only */
1226     FALSE,                    /* delivery_date_add */
1227     FALSE,                    /* envelope_to_add */
1228     FALSE,                    /* headers_only */
1229     FALSE,                    /* rcpt_include_affixes */
1230     FALSE,                    /* return_path_add */
1231     FALSE,                    /* return_output */
1232     FALSE,                    /* return_fail_output */
1233     FALSE,                    /* log_output */
1234     FALSE,                    /* log_fail_output */
1235     FALSE,                    /* log_defer_output */
1236     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1237                                  1 nor 0 so can detect unset */
1238 };
1239
1240 int     transport_count;
1241 uschar **transport_filter_argv  = NULL;
1242 int     transport_filter_timeout;
1243 BOOL    transport_filter_timed_out = FALSE;
1244 int     transport_write_timeout= 0;
1245
1246 tree_node  *tree_dns_fails     = NULL;
1247 tree_node  *tree_duplicates    = NULL;
1248 tree_node  *tree_nonrecipients = NULL;
1249 tree_node  *tree_unusable      = NULL;
1250
1251 BOOL    trusted_caller         = FALSE;
1252 gid_t  *trusted_groups         = NULL;
1253 uid_t  *trusted_users          = NULL;
1254 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1255
1256 uschar *unknown_login          = NULL;
1257 uschar *unknown_username       = NULL;
1258 uschar *untrusted_set_sender   = NULL;
1259
1260 /*  A regex for matching a "From_" line in an incoming message, in the form
1261
1262     From ph10 Fri Jan  5 12:35 GMT 1996
1263
1264 which  the "mail" commands send to the MTA (undocumented, of course), or in
1265 the  form
1266
1267     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1268
1269 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1270 Because  of variations in time formats, just match up to the minutes. That
1271 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1272 so  just require one digit for hours and minutes. The weekday is also absent
1273 in  some forms. */
1274
1275 uschar *uucp_from_pattern      = US
1276    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1277    "(?:"                                          /* Non-extracting bracket */
1278    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1279    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1280    ")"                                            /* End alternation */
1281    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1282
1283 uschar *uucp_from_sender       = US"$1";
1284
1285 uschar *warn_message_file      = NULL;
1286 uschar *warnmsg_delay          = NULL;
1287 uschar *warnmsg_recipients     = NULL;
1288 BOOL    write_rejectlog        = TRUE;
1289
1290 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1291 uschar *version_date           = US"?";
1292 uschar *version_cnumber        = US"????";
1293 uschar *version_string         = US"?";
1294
1295 int     warning_count          = 0;
1296
1297 /*  End of globals.c */