src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.88 2010/06/12 15:21:26 jetmore Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2009 */
   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 BOOL    gnutls_compat_mode     = FALSE;
 115 uschar *gnutls_require_mac     = NULL;
 116 uschar *gnutls_require_kx      = NULL;
 117 uschar *gnutls_require_proto   = NULL;
 118 uschar *openssl_options        = NULL;
 119 const pcre *regex_STARTTLS     = NULL;
 120 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 121 uschar *tls_certificate        = NULL;
 122 uschar *tls_crl                = NULL;
 123 uschar *tls_dhparam            = NULL;
 124 BOOL    tls_offered            = FALSE;
 125 uschar *tls_privatekey         = NULL;
 126 BOOL    tls_remember_esmtp     = FALSE;
 127 uschar *tls_require_ciphers    = NULL;
 128 uschar *tls_try_verify_hosts   = NULL;
 129 uschar *tls_verify_certificates= NULL;
 130 uschar *tls_verify_hosts       = NULL;
 131 #endif
 132
 133
 134 /* Input-reading functions for messages, so we can use special ones for
 135 incoming TCP/IP. The defaults use stdin. We never need these for any
 136 stand-alone tests. */
 137
 138 #ifndef STAND_ALONE
 139 int (*receive_getc)(void)      = stdin_getc;
 140 int (*receive_ungetc)(int)     = stdin_ungetc;
 141 int (*receive_feof)(void)      = stdin_feof;
 142 int (*receive_ferror)(void)    = stdin_ferror;
 143 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 144 #endif
 145
 146
 147 /* List of per-address expansion variables for clearing and saving/restoring
 148 when verifying one address while routing/verifying another. We have to have
 149 the size explicit, because it is referenced from more than one module. */
 150
 151 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 152   &deliver_address_data,
 153   &deliver_domain,
 154   &deliver_domain_data,
 155   &deliver_domain_orig,
 156   &deliver_domain_parent,
 157   &deliver_localpart,
 158   &deliver_localpart_data,
 159   &deliver_localpart_orig,
 160   &deliver_localpart_parent,
 161   &deliver_localpart_prefix,
 162   &deliver_localpart_suffix,
 163   (uschar **)(&deliver_recipients),
 164   &deliver_host,
 165   &deliver_home,
 166   &address_file,
 167   &address_pipe,
 168   &self_hostname,
 169   NULL };
 170
 171 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 172
 173 /* General global variables */
 174
 175 header_line *acl_added_headers = NULL;
 176 tree_node *acl_anchor          = NULL;
 177
 178 uschar *acl_not_smtp           = NULL;
 179 #ifdef WITH_CONTENT_SCAN
 180 uschar *acl_not_smtp_mime      = NULL;
 181 #endif
 182 uschar *acl_not_smtp_start     = NULL;
 183
 184 uschar *acl_smtp_auth          = NULL;
 185 uschar *acl_smtp_connect       = NULL;
 186 uschar *acl_smtp_data          = NULL;
 187 #ifndef DISABLE_DKIM
 188 uschar *acl_smtp_dkim          = NULL;
 189 #endif
 190 uschar *acl_smtp_etrn          = NULL;
 191 uschar *acl_smtp_expn          = NULL;
 192 uschar *acl_smtp_helo          = NULL;
 193 uschar *acl_smtp_mail          = NULL;
 194 uschar *acl_smtp_mailauth      = NULL;
 195 #ifdef WITH_CONTENT_SCAN
 196 uschar *acl_smtp_mime          = NULL;
 197 #endif
 198 uschar *acl_smtp_notquit       = NULL;
 199 uschar *acl_smtp_predata       = NULL;
 200 uschar *acl_smtp_quit          = NULL;
 201 uschar *acl_smtp_rcpt          = NULL;
 202 uschar *acl_smtp_starttls      = NULL;
 203 uschar *acl_smtp_vrfy          = NULL;
 204
 205 BOOL    acl_temp_details       = FALSE;
 206 tree_node *acl_var_c           = NULL;
 207 tree_node *acl_var_m           = NULL;
 208 uschar *acl_verify_message     = NULL;
 209 string_item *acl_warn_logged   = NULL;
 210
 211 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 212 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 213
 214 uschar *acl_wherenames[]       = { US"RCPT",
 215                                    US"MAIL",
 216                                    US"PREDATA",
 217                                    US"MIME",
 218                                    US"DKIM",
 219                                    US"DATA",
 220                                    US"non-SMTP",
 221                                    US"AUTH",
 222                                    US"connection",
 223                                    US"ETRN",
 224                                    US"EXPN",
 225                                    US"EHLO or HELO",
 226                                    US"MAILAUTH",
 227                                    US"non-SMTP-start",
 228                                    US"NOTQUIT",
 229                                    US"QUIT",
 230                                    US"STARTTLS",
 231                                    US"VRFY"
 232                                  };
 233
 234 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 235                                    US"550",     /* MAIL */
 236                                    US"550",     /* PREDATA */
 237                                    US"550",     /* MIME */
 238                                    US"550",     /* DKIM */
 239                                    US"550",     /* DATA */
 240                                    US"0",       /* not SMTP; not relevant */
 241                                    US"503",     /* AUTH */
 242                                    US"550",     /* connect */
 243                                    US"458",     /* ETRN */
 244                                    US"550",     /* EXPN */
 245                                    US"550",     /* HELO/EHLO */
 246                                    US"0",       /* MAILAUTH; not relevant */
 247                                    US"0",       /* not SMTP; not relevant */
 248                                    US"0",       /* NOTQUIT; not relevant */
 249                                    US"0",       /* QUIT; not relevant */
 250                                    US"550",     /* STARTTLS */
 251                                    US"252"      /* VRFY */
 252                                  };
 253
 254 BOOL    active_local_from_check = FALSE;
 255 BOOL    active_local_sender_retain = FALSE;
 256 BOOL    accept_8bitmime        = FALSE;
 257 address_item  *addr_duplicate  = NULL;
 258
 259 address_item address_defaults = {
 260   NULL,                 /* next */
 261   NULL,                 /* parent */
 262   NULL,                 /* first */
 263   NULL,                 /* dupof */
 264   NULL,                 /* start_router */
 265   NULL,                 /* router */
 266   NULL,                 /* transport */
 267   NULL,                 /* host_list */
 268   NULL,                 /* host_used */
 269   NULL,                 /* fallback_hosts */
 270   NULL,                 /* reply */
 271   NULL,                 /* retries */
 272   NULL,                 /* address */
 273   NULL,                 /* unique */
 274   NULL,                 /* cc_local_part */
 275   NULL,                 /* lc_local_part */
 276   NULL,                 /* local_part */
 277   NULL,                 /* prefix */
 278   NULL,                 /* suffix */
 279   NULL,                 /* domain */
 280   NULL,                 /* address_retry_key */
 281   NULL,                 /* domain_retry_key */
 282   NULL,                 /* current_dir */
 283   NULL,                 /* home_dir */
 284   NULL,                 /* message */
 285   NULL,                 /* user_message */
 286   NULL,                 /* onetime_parent */
 287   NULL,                 /* pipe_expandn */
 288   NULL,                 /* return_filename */
 289   NULL,                 /* self_hostname */
 290   NULL,                 /* shadow_message */
 291   #ifdef SUPPORT_TLS
 292   NULL,                 /* cipher */
 293   NULL,                 /* peerdn */
 294   #endif
 295   (uid_t)(-1),          /* uid */
 296   (gid_t)(-1),          /* gid */
 297   0,                    /* flags */
 298   { 0 },                /* domain_cache - any larger array should be zeroed */
 299   { 0 },                /* localpart_cache - ditto */
 300   -1,                   /* mode */
 301   0,                    /* more_errno */
 302   ERRNO_UNKNOWNERROR,   /* basic_errno */
 303   0,                    /* child_count */
 304   -1,                   /* return_file */
 305   SPECIAL_NONE,         /* special_action */
 306   DEFER,                /* transport_return */
 307   {                     /* fields that are propagated to children */
 308     NULL,               /* address_data */
 309     NULL,               /* domain_data */
 310     NULL,               /* localpart_data */
 311     NULL,               /* errors_address */
 312     NULL,               /* extra_headers */
 313     NULL,               /* remove_headers */
 314 #ifdef EXPERIMENTAL_SRS
 315     NULL,               /* srs_sender */
 316 #endif
 317   }
 318 };
 319
 320 uschar *address_file           = NULL;
 321 uschar *address_pipe           = NULL;
 322 BOOL    address_test_mode      = FALSE;
 323 tree_node *addresslist_anchor  = NULL;
 324 int     addresslist_count      = 0;
 325 gid_t  *admin_groups           = NULL;
 326 BOOL    admin_user             = FALSE;
 327 BOOL    allow_auth_unadvertised= FALSE;
 328 BOOL    allow_domain_literals  = FALSE;
 329 BOOL    allow_mx_to_ip         = FALSE;
 330 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 331 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 332 BOOL    allow_utf8_domains     = FALSE;
 333 uschar *authenticated_id       = NULL;
 334 uschar *authenticated_sender   = NULL;
 335 BOOL    authentication_failed  = FALSE;
 336 auth_instance  *auths          = NULL;
 337 uschar *auth_advertise_hosts   = US"*";
 338 auth_instance auth_defaults    = {
 339     NULL,                      /* chain pointer */
 340     NULL,                      /* name */
 341     NULL,                      /* info */
 342     NULL,                      /* private options block pointer */
 343     NULL,                      /* driver_name */
 344     NULL,                      /* advertise_condition */
 345     NULL,                      /* client_condition */
 346     NULL,                      /* public_name */
 347     NULL,                      /* set_id */
 348     NULL,                      /* server_mail_auth_condition */
 349     NULL,                      /* server_debug_string */
 350     NULL,                      /* server_condition */
 351     FALSE,                     /* client */
 352     FALSE,                     /* server */
 353     FALSE                      /* advertised */
 354 };
 355
 356 uschar *auth_defer_msg         = US"reason not recorded";
 357 uschar *auth_defer_user_msg    = US"";
 358 uschar *auth_vars[AUTH_VARS];
 359 int     auto_thaw              = 0;
 360 #ifdef WITH_CONTENT_SCAN
 361 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 362 #endif
 363
 364 BOOL    background_daemon      = TRUE;
 365
 366 #if BASE_62 == 62
 367 uschar *base62_chars=
 368     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 369 #else
 370 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 371 #endif
 372
 373 uschar *bi_command             = NULL;
 374 uschar *big_buffer             = NULL;
 375 int     big_buffer_size        = BIG_BUFFER_SIZE;
 376 #ifdef EXPERIMENTAL_BRIGHTMAIL
 377 uschar *bmi_alt_location       = NULL;
 378 uschar *bmi_base64_tracker_verdict = NULL;
 379 uschar *bmi_base64_verdict     = NULL;
 380 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 381 int     bmi_deliver            = 1;
 382 int     bmi_run                = 0;
 383 uschar *bmi_verdicts           = NULL;
 384 #endif
 385 int     body_linecount         = 0;
 386 int     body_zerocount         = 0;
 387 uschar *bounce_message_file    = NULL;
 388 uschar *bounce_message_text    = NULL;
 389 uschar *bounce_recipient       = NULL;
 390 BOOL    bounce_return_body     = TRUE;
 391 BOOL    bounce_return_message  = TRUE;
 392 int     bounce_return_size_limit = 100*1024;
 393 uschar *bounce_sender_authentication = NULL;
 394 int     bsmtp_transaction_linecount = 0;
 395
 396 int     callout_cache_domain_positive_expire = 7*24*60*60;
 397 int     callout_cache_domain_negative_expire = 3*60*60;
 398 int     callout_cache_positive_expire = 24*60*60;
 399 int     callout_cache_negative_expire = 2*60*60;
 400 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 401 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 402 int     check_log_inodes       = 0;
 403 int     check_log_space        = 0;
 404 BOOL    check_rfc2047_length   = TRUE;
 405 int     check_spool_inodes     = 0;
 406 int     check_spool_space      = 0;
 407 int     clmacro_count          = 0;
 408 uschar *clmacros[MAX_CLMACROS];
 409 BOOL    config_changed         = FALSE;
 410 FILE   *config_file            = NULL;
 411 uschar *config_filename        = NULL;
 412 int     config_lineno          = 0;
 413 #ifdef CONFIGURE_GROUP
 414 gid_t   config_gid             = CONFIGURE_GROUP;
 415 #endif
 416 uschar *config_main_filelist   = US CONFIGURE_FILE
 417                          "\0<-----------Space to patch configure_filename->";
 418 uschar *config_main_filename   = NULL;
 419
 420 #ifdef CONFIGURE_OWNER
 421 uid_t   config_uid             = CONFIGURE_OWNER;
 422 #endif
 423
 424 int     connection_max_messages= -1;
 425 uschar *continue_hostname      = NULL;
 426 uschar *continue_host_address  = NULL;
 427 BOOL    continue_more          = FALSE;
 428 int     continue_sequence      = 1;
 429 uschar *continue_transport     = NULL;
 430
 431 uschar *csa_status             = NULL;
 432
 433 BOOL    daemon_listen          = FALSE;
 434 uschar *daemon_smtp_port       = US"smtp";
 435 int     daemon_startup_retries = 9;
 436 int     daemon_startup_sleep   = 30;
 437
 438 #ifdef EXPERIMENTAL_DCC
 439 BOOL    dcc_direct_add_header  = FALSE;
 440 uschar *dcc_header             = NULL;
 441 uschar *dcc_result             = NULL;
 442 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 443 uschar *dccifd_options         = US"header";
 444 #endif
 445
 446 BOOL    debug_daemon           = FALSE;
 447 int     debug_fd               = -1;
 448 FILE   *debug_file             = NULL;
 449 bit_table debug_options[]      = {
 450   { US"acl",            D_acl },
 451   { US"all",            D_all },
 452   { US"auth",           D_auth },
 453   { US"deliver",        D_deliver },
 454   { US"dns",            D_dns },
 455   { US"dnsbl",          D_dnsbl },
 456   { US"exec",           D_exec },
 457   { US"expand",         D_expand },
 458   { US"filter",         D_filter },
 459   { US"hints_lookup",   D_hints_lookup },
 460   { US"host_lookup",    D_host_lookup },
 461   { US"ident",          D_ident },
 462   { US"interface",      D_interface },
 463   { US"lists",          D_lists },
 464   { US"load",           D_load },
 465   { US"local_scan",     D_local_scan },
 466   { US"lookup",         D_lookup },
 467   { US"memory",         D_memory },
 468   { US"pid",            D_pid },
 469   { US"process_info",   D_process_info },
 470   { US"queue_run",      D_queue_run },
 471   { US"receive",        D_receive },
 472   { US"resolver",       D_resolver },
 473   { US"retry",          D_retry },
 474   { US"rewrite",        D_rewrite },
 475   { US"route",          D_route },
 476   { US"timestamp",      D_timestamp },
 477   { US"tls",            D_tls },
 478   { US"transport",      D_transport },
 479   { US"uid",            D_uid },
 480   { US"verify",         D_verify }
 481 };
 482 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 483 unsigned int debug_selector    = 0;
 484 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 485 uschar *delay_warning_condition=
 486   US"${if or {"
 487             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 488             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 489             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 490             "} {no}{yes}}";
 491 BOOL    delivery_date_remove   = TRUE;
 492 uschar *deliver_address_data   = NULL;
 493 int     deliver_datafile       = -1;
 494 uschar *deliver_domain         = NULL;
 495 uschar *deliver_domain_data    = NULL;
 496 uschar *deliver_domain_orig    = NULL;
 497 uschar *deliver_domain_parent  = NULL;
 498 BOOL    deliver_drop_privilege = FALSE;
 499 BOOL    deliver_firsttime      = FALSE;
 500 BOOL    deliver_force          = FALSE;
 501 BOOL    deliver_freeze         = FALSE;
 502 int     deliver_frozen_at      = 0;
 503 uschar *deliver_home           = NULL;
 504 uschar *deliver_host           = NULL;
 505 uschar *deliver_host_address   = NULL;
 506 uschar *deliver_in_buffer      = NULL;
 507 ino_t   deliver_inode          = 0;
 508 uschar *deliver_localpart      = NULL;
 509 uschar *deliver_localpart_data = NULL;
 510 uschar *deliver_localpart_orig = NULL;
 511 uschar *deliver_localpart_parent = NULL;
 512 uschar *deliver_localpart_prefix = NULL;
 513 uschar *deliver_localpart_suffix = NULL;
 514 BOOL    deliver_force_thaw     = FALSE;
 515 BOOL    deliver_manual_thaw    = FALSE;
 516 uschar *deliver_out_buffer     = NULL;
 517 int     deliver_queue_load_max = -1;
 518 address_item  *deliver_recipients = NULL;
 519 uschar *deliver_selectstring   = NULL;
 520 BOOL    deliver_selectstring_regex = FALSE;
 521 uschar *deliver_selectstring_sender = NULL;
 522 BOOL    deliver_selectstring_sender_regex = FALSE;
 523 #ifdef WITH_OLD_DEMIME
 524 int     demime_errorlevel      = 0;
 525 int     demime_ok              = 0;
 526 uschar *demime_reason          = NULL;
 527 #endif
 528 BOOL    disable_callout_flush  = FALSE;
 529 BOOL    disable_delay_flush    = FALSE;
 530 #ifdef ENABLE_DISABLE_FSYNC
 531 BOOL    disable_fsync          = FALSE;
 532 #endif
 533 BOOL    disable_ipv6           = FALSE;
 534 BOOL    disable_logging        = FALSE;
 535
 536 #ifndef DISABLE_DKIM
 537 uschar *dkim_cur_signer          = NULL;
 538 uschar *dkim_signers             = NULL;
 539 uschar *dkim_signing_domain      = NULL;
 540 uschar *dkim_signing_selector    = NULL;
 541 uschar *dkim_verify_signers      = US"$dkim_signers";
 542 BOOL    dkim_collect_input       = FALSE;
 543 BOOL    dkim_disable_verify      = FALSE;
 544 #endif
 545
 546 uschar *dns_again_means_nonexist = NULL;
 547 int     dns_csa_search_limit   = 5;
 548 BOOL    dns_csa_use_reverse    = TRUE;
 549 uschar *dns_ipv4_lookup        = NULL;
 550 int     dns_retrans            = 0;
 551 int     dns_retry              = 0;
 552 uschar *dnslist_domain         = NULL;
 553 uschar *dnslist_matched        = NULL;
 554 uschar *dnslist_text           = NULL;
 555 uschar *dnslist_value          = NULL;
 556 tree_node *domainlist_anchor   = NULL;
 557 int     domainlist_count       = 0;
 558 BOOL    dont_deliver           = FALSE;
 559 BOOL    dot_ends               = TRUE;
 560 BOOL    drop_cr                = FALSE;         /* No longer used */
 561 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 562
 563 BOOL    enable_dollar_recipients = FALSE;
 564 BOOL    envelope_to_remove     = TRUE;
 565 int     errno_quota            = ERRNO_QUOTA;
 566 uschar *errors_copy            = NULL;
 567 int     error_handling         = ERRORS_SENDER;
 568 uschar *errors_reply_to        = NULL;
 569 int     errors_sender_rc       = EXIT_FAILURE;
 570
 571 gid_t   exim_gid               = EXIM_GID;
 572 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 573 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 574                         "\0<---------------Space to patch exim_path->";
 575 uid_t   exim_uid               = EXIM_UID;
 576 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 577 int     expand_forbid          = 0;
 578 int     expand_nlength[EXPAND_MAXN+1];
 579 int     expand_nmax            = -1;
 580 uschar *expand_nstring[EXPAND_MAXN+1];
 581 BOOL    expand_string_forcedfail = FALSE;
 582 uschar *expand_string_message;
 583 BOOL    extract_addresses_remove_arguments = TRUE;
 584 uschar *extra_local_interfaces = NULL;
 585
 586 int     fake_response          = OK;
 587 uschar *fake_response_text     = US"Your message has been rejected but is "
 588                                    "being kept for evaluation.\nIf it was a "
 589                                    "legitimate message, it may still be "
 590                                    "delivered to the target recipient(s).";
 591 int     filter_n[FILTER_VARIABLE_COUNT];
 592 BOOL    filter_running         = FALSE;
 593 int     filter_sn[FILTER_VARIABLE_COUNT];
 594 int     filter_test            = FTEST_NONE;
 595 uschar *filter_test_sfile      = NULL;
 596 uschar *filter_test_ufile      = NULL;
 597 uschar *filter_thisaddress     = NULL;
 598 int     finduser_retries       = 0;
 599 #ifdef WITH_OLD_DEMIME
 600 uschar *found_extension        = NULL;
 601 #endif
 602 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 603 uschar *freeze_tell            = NULL;
 604 uschar *freeze_tell_config     = NULL;
 605 uschar *fudged_queue_times     = US"";
 606
 607 uschar *gecos_name             = NULL;
 608 uschar *gecos_pattern          = NULL;
 609 rewrite_rule  *global_rewrite_rules = NULL;
 610
 611 uschar *headers_charset        = US HEADERS_CHARSET;
 612 int     header_insert_maxlen   = 64 * 1024;
 613 header_line  *header_last      = NULL;
 614 header_line  *header_list      = NULL;
 615 int     header_maxsize         = HEADER_MAXSIZE;
 616 int     header_line_maxsize    = 0;
 617
 618 header_name header_names[] = {
 619   { US"bcc",            3, TRUE,  htype_bcc },
 620   { US"cc",             2, TRUE,  htype_cc },
 621   { US"date",           4, TRUE,  htype_date },
 622   { US"delivery-date", 13, FALSE, htype_delivery_date },
 623   { US"envelope-to",   11, FALSE, htype_envelope_to },
 624   { US"from",           4, TRUE,  htype_from },
 625   { US"message-id",    10, TRUE,  htype_id },
 626   { US"received",       8, FALSE, htype_received },
 627   { US"reply-to",       8, FALSE, htype_reply_to },
 628   { US"return-path",   11, FALSE, htype_return_path },
 629   { US"sender",         6, TRUE,  htype_sender },
 630   { US"subject",        7, FALSE, htype_subject },
 631   { US"to",             2, TRUE,  htype_to }
 632 };
 633
 634 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 635
 636 BOOL    header_rewritten       = FALSE;
 637 uschar *helo_accept_junk_hosts = NULL;
 638 uschar *helo_allow_chars       = US"";
 639 uschar *helo_lookup_domains    = US"@ : @[]";
 640 uschar *helo_try_verify_hosts  = NULL;
 641 BOOL    helo_verified          = FALSE;
 642 BOOL    helo_verify_failed     = FALSE;
 643 uschar *helo_verify_hosts      = NULL;
 644 uschar *hex_digits             = US"0123456789abcdef";
 645 uschar *hold_domains           = NULL;
 646 BOOL    host_checking          = FALSE;
 647 BOOL    host_checking_callout  = FALSE;
 648 uschar *host_data              = NULL;
 649 BOOL    host_find_failed_syntax= FALSE;
 650 uschar *host_lookup            = NULL;
 651 BOOL    host_lookup_deferred   = FALSE;
 652 BOOL    host_lookup_failed     = FALSE;
 653 uschar *host_lookup_order      = US"bydns:byaddr";
 654 uschar *host_lookup_msg        = US"";
 655 int     host_number            = 0;
 656 uschar *host_number_string     = NULL;
 657 uschar *host_reject_connection = NULL;
 658 tree_node *hostlist_anchor     = NULL;
 659 int     hostlist_count         = 0;
 660 uschar *hosts_treat_as_local   = NULL;
 661 uschar *hosts_connection_nolog = NULL;
 662
 663 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 664 BOOL    ignore_fromline_local  = FALSE;
 665 uschar *ignore_fromline_hosts  = NULL;
 666 uschar *interface_address      = NULL;
 667 int     interface_port         = -1;
 668 BOOL    is_inetd               = FALSE;
 669 uschar *iterate_item           = NULL;
 670
 671 int     journal_fd             = -1;
 672
 673 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 674
 675 uschar *eldap_dn               = NULL;
 676 int     load_average           = -2;
 677 BOOL    local_error_message    = FALSE;
 678 BOOL    local_from_check       = TRUE;
 679 uschar *local_from_prefix      = NULL;
 680 uschar *local_from_suffix      = NULL;
 681
 682 #if HAVE_IPV6
 683 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 684 #else
 685 uschar *local_interfaces       = US"0.0.0.0";
 686 #endif
 687
 688 uschar *local_scan_data        = NULL;
 689 int     local_scan_timeout     = 5*60;
 690 BOOL    local_sender_retain    = FALSE;
 691 gid_t   local_user_gid         = (gid_t)(-1);
 692 uid_t   local_user_uid         = (uid_t)(-1);
 693
 694 tree_node *localpartlist_anchor= NULL;
 695 int     localpartlist_count    = 0;
 696 uschar *log_buffer             = NULL;
 697 unsigned int log_extra_selector = LX_default;
 698 uschar *log_file_path          = US LOG_FILE_PATH
 699                            "\0<--------------Space to patch log_file_path->";
 700
 701 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 702 are the ones that get put into log_write_selector. They can be used in calls to
 703 log_write() to test for the bit. The options with LX_xxx identifiers have
 704 values greater than 0x80000000 and are put int log_extra_selector (without the
 705 top bit). They are never used in calls to log_write(), but are tested
 706 independently. This separation became necessary when the number of log
 707 selectors was getting close to filling a 32-bit word. */
 708
 709 /* Note that this list must be in alphabetical order. */
 710
 711 bit_table log_options[]        = {
 712   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 713   { US"address_rewrite",              L_address_rewrite },
 714   { US"all",                          L_all },
 715   { US"all_parents",                  L_all_parents },
 716   { US"arguments",                    LX_arguments },
 717   { US"connection_reject",            L_connection_reject },
 718   { US"delay_delivery",               L_delay_delivery },
 719   { US"deliver_time",                 LX_deliver_time },
 720   { US"delivery_size",                LX_delivery_size },
 721   { US"dnslist_defer",                L_dnslist_defer },
 722   { US"etrn",                         L_etrn },
 723   { US"host_lookup_failed",           L_host_lookup_failed },
 724   { US"ident_timeout",                LX_ident_timeout },
 725   { US"incoming_interface",           LX_incoming_interface },
 726   { US"incoming_port",                LX_incoming_port },
 727   { US"lost_incoming_connection",     L_lost_incoming_connection },
 728   { US"outgoing_port",                LX_outgoing_port },
 729   { US"pid",                          LX_pid },
 730   { US"queue_run",                    L_queue_run },
 731   { US"queue_time",                   LX_queue_time },
 732   { US"queue_time_overall",           LX_queue_time_overall },
 733   { US"received_recipients",          LX_received_recipients },
 734   { US"received_sender",              LX_received_sender },
 735   { US"rejected_header",              LX_rejected_header },
 736   { US"rejected_headers",             LX_rejected_header },
 737   { US"retry_defer",                  L_retry_defer },
 738   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 739   { US"sender_on_delivery",           LX_sender_on_delivery },
 740   { US"sender_verify_fail",           LX_sender_verify_fail },
 741   { US"size_reject",                  L_size_reject },
 742   { US"skip_delivery",                L_skip_delivery },
 743   { US"smtp_confirmation",            LX_smtp_confirmation },
 744   { US"smtp_connection",              L_smtp_connection },
 745   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 746   { US"smtp_no_mail",                 LX_smtp_no_mail },
 747   { US"smtp_protocol_error",          L_smtp_protocol_error },
 748   { US"smtp_syntax_error",            L_smtp_syntax_error },
 749   { US"subject",                      LX_subject },
 750   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 751   { US"tls_cipher",                   LX_tls_cipher },
 752   { US"tls_peerdn",                   LX_tls_peerdn },
 753   { US"unknown_in_list",              LX_unknown_in_list }
 754 };
 755
 756 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 757 int     log_reject_target      = 0;
 758 uschar *log_selector_string    = NULL;
 759 FILE   *log_stderr             = NULL;
 760 BOOL    log_testing_mode       = FALSE;
 761 BOOL    log_timezone           = FALSE;
 762 unsigned int log_write_selector= L_default;
 763 uschar *login_sender_address   = NULL;
 764 int     lookup_open_max        = 25;
 765 uschar *lookup_value           = NULL;
 766
 767 macro_item  *macros            = NULL;
 768 uschar *mailstore_basename     = NULL;
 769 #ifdef WITH_CONTENT_SCAN
 770 uschar *malware_name           = NULL;  /* Virus Name */
 771 #endif
 772 int     max_received_linelength= 0;
 773 int     max_username_length    = 0;
 774 int     message_age            = 0;
 775 uschar *message_body           = NULL;
 776 uschar *message_body_end       = NULL;
 777 BOOL    message_body_newlines  = FALSE;
 778 int     message_body_size      = 0;
 779 int     message_body_visible   = 500;
 780 int     message_ended          = END_NOTSTARTED;
 781 uschar *message_headers        = NULL;
 782 uschar *message_id;
 783 uschar *message_id_domain      = NULL;
 784 uschar *message_id_text        = NULL;
 785 struct timeval message_id_tv   = { 0, 0 };
 786 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 787 uschar *message_id_external;
 788 int     message_linecount      = 0;
 789 BOOL    message_logs           = TRUE;
 790 int     message_size           = 0;
 791 uschar *message_size_limit     = US"50M";
 792 uschar  message_subdir[2]      = { 0, 0 };
 793 uschar *message_reference      = NULL;
 794
 795 /* MIME ACL expandables */
 796 #ifdef WITH_CONTENT_SCAN
 797 int     mime_anomaly_level     = 0;
 798 uschar *mime_anomaly_text      = NULL;
 799 uschar *mime_boundary          = NULL;
 800 uschar *mime_charset           = NULL;
 801 uschar *mime_content_description = NULL;
 802 uschar *mime_content_disposition = NULL;
 803 uschar *mime_content_id        = NULL;
 804 unsigned int mime_content_size = 0;
 805 uschar *mime_content_transfer_encoding = NULL;
 806 uschar *mime_content_type      = NULL;
 807 uschar *mime_decoded_filename  = NULL;
 808 uschar *mime_filename          = NULL;
 809 int     mime_is_multipart      = 0;
 810 int     mime_is_coverletter    = 0;
 811 int     mime_is_rfc822         = 0;
 812 int     mime_part_count        = -1;
 813 #endif
 814
 815 BOOL    mua_wrapper            = FALSE;
 816
 817 uid_t  *never_users            = NULL;
 818 #ifdef WITH_CONTENT_SCAN
 819 BOOL    no_mbox_unspool        = FALSE;
 820 #endif
 821 BOOL    no_multiline_responses = FALSE;
 822
 823 uid_t   original_euid;
 824 gid_t   originator_gid;
 825 uschar *originator_login       = NULL;
 826 uschar *originator_name        = NULL;
 827 uid_t   originator_uid;
 828 uschar *override_local_interfaces = NULL;
 829 uschar *override_pid_file_path = NULL;
 830
 831 BOOL    parse_allow_group      = FALSE;
 832 BOOL    parse_found_group      = FALSE;
 833 uschar *percent_hack_domains   = NULL;
 834 uschar *pid_file_path          = US PID_FILE_PATH
 835                            "\0<--------------Space to patch pid_file_path->";
 836 BOOL    pipelining_enable      = TRUE;
 837 uschar *pipelining_advertise_hosts = US"*";
 838 BOOL    preserve_message_logs  = FALSE;
 839 uschar *primary_hostname       = NULL;
 840 BOOL    print_topbitchars      = FALSE;
 841 uschar  process_info[PROCESS_INFO_SIZE];
 842 uschar *process_log_path       = NULL;
 843 BOOL    prod_requires_admin    = TRUE;
 844 uschar *prvscheck_address      = NULL;
 845 uschar *prvscheck_keynum       = NULL;
 846 uschar *prvscheck_result       = NULL;
 847
 848
 849 uschar *qualify_domain_recipient = NULL;
 850 uschar *qualify_domain_sender  = NULL;
 851 BOOL    queue_2stage           = FALSE;
 852 uschar *queue_domains          = NULL;
 853 int     queue_interval         = -1;
 854 BOOL    queue_list_requires_admin = TRUE;
 855 BOOL    queue_only             = FALSE;
 856 uschar *queue_only_file        = NULL;
 857 int     queue_only_load        = -1;
 858 BOOL    queue_only_load_latch  = TRUE;
 859 BOOL    queue_only_override    = TRUE;
 860 BOOL    queue_only_policy      = FALSE;
 861 BOOL    queue_run_first_delivery = FALSE;
 862 BOOL    queue_run_force        = FALSE;
 863 BOOL    queue_run_in_order     = FALSE;
 864 BOOL    queue_run_local        = FALSE;
 865 int     queue_run_max          = 5;
 866 pid_t   queue_run_pid          = (pid_t)0;
 867 int     queue_run_pipe         = -1;
 868 BOOL    queue_running          = FALSE;
 869 BOOL    queue_smtp             = FALSE;
 870 uschar *queue_smtp_domains     = NULL;
 871
 872 unsigned int random_seed       = 0;
 873 tree_node *ratelimiters_cmd    = NULL;
 874 tree_node *ratelimiters_conn   = NULL;
 875 tree_node *ratelimiters_mail   = NULL;
 876 uschar *raw_active_hostname    = NULL;
 877 uschar *raw_sender             = NULL;
 878 uschar **raw_recipients        = NULL;
 879 int     raw_recipients_count   = 0;
 880
 881 int     rcpt_count             = 0;
 882 int     rcpt_fail_count        = 0;
 883 int     rcpt_defer_count       = 0;
 884 gid_t   real_gid;
 885 uid_t   real_uid;
 886 BOOL    really_exim            = TRUE;
 887 BOOL    receive_call_bombout   = FALSE;
 888 int     receive_linecount      = 0;
 889 int     receive_messagecount   = 0;
 890 int     receive_timeout        = 0;
 891 int     received_count         = 0;
 892 uschar *received_for           = NULL;
 893
 894 /*  This is the default text for Received headers generated by Exim. The
 895 date  will be automatically added on the end. */
 896
 897 uschar *received_header_text   = US
 898      "Received: "
 899      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 900      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 901      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 902      "by $primary_hostname "
 903      "${if def:received_protocol {with $received_protocol}} "
 904      #ifdef SUPPORT_TLS
 905      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 906      #endif
 907      "(Exim $version_number)\n\t"
 908      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 909      "id $message_exim_id"
 910      "${if def:received_for {\n\tfor $received_for}}"
 911      "\0<---------------Space to patch received_header_text->";
 912
 913 int     received_headers_max   = 30;
 914 uschar *received_protocol      = NULL;
 915 int     received_time          = 0;
 916 uschar *recipient_data         = NULL;
 917 uschar *recipient_unqualified_hosts = NULL;
 918 uschar *recipient_verify_failure = NULL;
 919 int     recipients_count       = 0;
 920 BOOL    recipients_discarded   = FALSE;
 921 recipient_item  *recipients_list = NULL;
 922 int     recipients_list_max    = 0;
 923 int     recipients_max         = 0;
 924 BOOL    recipients_max_reject  = FALSE;
 925 const pcre *regex_AUTH         = NULL;
 926 const pcre *regex_check_dns_names = NULL;
 927 const pcre *regex_From         = NULL;
 928 const pcre *regex_IGNOREQUOTA  = NULL;
 929 const pcre *regex_PIPELINING   = NULL;
 930 const pcre *regex_SIZE         = NULL;
 931 const pcre *regex_smtp_code    = NULL;
 932 const pcre *regex_ismsgid      = NULL;
 933 #ifdef WHITELIST_D_MACROS
 934 const pcre *regex_whitelisted_macro = NULL;
 935 #endif
 936 #ifdef WITH_CONTENT_SCAN
 937 uschar *regex_match_string     = NULL;
 938 #endif
 939 int     remote_delivery_count  = 0;
 940 int     remote_max_parallel    = 2;
 941 uschar *remote_sort_domains    = NULL;
 942 int     retry_data_expire      = 7*24*60*60;
 943 int     retry_interval_max     = 24*60*60;
 944 int     retry_maximum_timeout  = 0;        /* set from retry config */
 945 retry_config  *retries         = NULL;
 946 uschar *return_path            = NULL;
 947 BOOL    return_path_remove     = TRUE;
 948 int     rewrite_existflags     = 0;
 949 uschar *rfc1413_hosts          = US"*";
 950 int     rfc1413_query_timeout  = 5;
 951 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 952 uid_t   root_gid               = ROOT_GID;
 953 uid_t   root_uid               = ROOT_UID;
 954
 955 router_instance  *routers  = NULL;
 956 router_instance  router_defaults = {
 957     NULL,                      /* chain pointer */
 958     NULL,                      /* name */
 959     NULL,                      /* info */
 960     NULL,                      /* private options block pointer */
 961     NULL,                      /* driver name */
 962
 963     NULL,                      /* address_data */
 964 #ifdef EXPERIMENTAL_BRIGHTMAIL
 965     NULL,                      /* bmi_rule */
 966 #endif
 967     NULL,                      /* cannot_route_message */
 968     NULL,                      /* condition */
 969     NULL,                      /* current_directory */
 970     NULL,                      /* debug_string */
 971     NULL,                      /* domains */
 972     NULL,                      /* errors_to */
 973     NULL,                      /* expand_gid */
 974     NULL,                      /* expand_uid */
 975     NULL,                      /* expand_more */
 976     NULL,                      /* expand_unseen */
 977     NULL,                      /* extra_headers */
 978     NULL,                      /* fallback_hosts */
 979     NULL,                      /* home_directory */
 980     NULL,                      /* ignore_target_hosts */
 981     NULL,                      /* local_parts */
 982     NULL,                      /* pass_router_name */
 983     NULL,                      /* prefix */
 984     NULL,                      /* redirect_router_name */
 985     NULL,                      /* remove_headers */
 986     NULL,                      /* require_files */
 987     NULL,                      /* router_home_directory */
 988     US"freeze",                /* self */
 989     NULL,                      /* senders */
 990     NULL,                      /* suffix */
 991     NULL,                      /* translate_ip_address */
 992     NULL,                      /* transport_name */
 993
 994     TRUE,                      /* address_test */
 995 #ifdef EXPERIMENTAL_BRIGHTMAIL
 996     FALSE,                     /* bmi_deliver_alternate */
 997     FALSE,                     /* bmi_deliver_default */
 998     FALSE,                     /* bmi_dont_deliver */
 999 #endif
1000     TRUE,                      /* expn */
1001     FALSE,                     /* caseful_local_part */
1002     FALSE,                     /* check_local_user */
1003     FALSE,                     /* disable_logging */
1004     FALSE,                     /* fail_verify_recipient */
1005     FALSE,                     /* fail_verify_sender */
1006     FALSE,                     /* gid_set */
1007     FALSE,                     /* initgroups */
1008     TRUE_UNSET,                /* log_as_local */
1009     TRUE,                      /* more */
1010     FALSE,                     /* pass_on_timeout */
1011     FALSE,                     /* prefix_optional */
1012     TRUE,                      /* repeat_use */
1013     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1014     FALSE,                     /* same_domain_copy_routing */
1015     FALSE,                     /* self_rewrite */
1016     FALSE,                     /* suffix_optional */
1017     FALSE,                     /* verify_only */
1018     TRUE,                      /* verify_recipient */
1019     TRUE,                      /* verify_sender */
1020     FALSE,                     /* uid_set */
1021     FALSE,                     /* unseen */
1022
1023     self_freeze,               /* self_code */
1024     (uid_t)(-1),               /* uid */
1025     (gid_t)(-1),               /* gid */
1026
1027     NULL,                      /* fallback_hostlist */
1028     NULL,                      /* transport instance */
1029     NULL,                      /* pass_router */
1030     NULL                       /* redirect_router */
1031 };
1032
1033 ip_address_item *running_interfaces = NULL;
1034 BOOL    running_in_test_harness = FALSE;
1035
1036 /* This is a weird one. The following string gets patched in the binary by the
1037 script that sets up a copy of Exim for running in the test harness. It seems
1038 that compilers are now clever, and share constant strings if they can.
1039 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1040 make use of the end of this string in order to save space. So the patching then
1041 wrecks this. We defeat this optimization by adding some additional characters
1042 onto the end of the string. */
1043
1044 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1045
1046 int     runrc                  = 0;
1047
1048 uschar *search_error_message   = NULL;
1049 BOOL    search_find_defer      = FALSE;
1050 uschar *self_hostname          = NULL;
1051 uschar *sender_address         = NULL;
1052 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1053 uschar *sender_address_data    = NULL;
1054 BOOL    sender_address_forced  = FALSE;
1055 uschar *sender_address_unrewritten = NULL;
1056 uschar *sender_data            = NULL;
1057 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1058 uschar *sender_fullhost        = NULL;
1059 uschar *sender_helo_name       = NULL;
1060 uschar **sender_host_aliases   = &no_aliases;
1061 uschar *sender_host_address    = NULL;
1062 uschar *sender_host_authenticated = NULL;
1063 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1064 uschar *sender_host_name       = NULL;
1065 int     sender_host_port       = 0;
1066 BOOL    sender_host_notsocket  = FALSE;
1067 BOOL    sender_host_unknown    = FALSE;
1068 uschar *sender_ident           = NULL;
1069 BOOL    sender_local           = FALSE;
1070 BOOL    sender_name_forced     = FALSE;
1071 uschar *sender_rate            = NULL;
1072 uschar *sender_rate_limit      = NULL;
1073 uschar *sender_rate_period     = NULL;
1074 uschar *sender_rcvhost         = NULL;
1075 BOOL    sender_set_untrusted   = FALSE;
1076 uschar *sender_unqualified_hosts = NULL;
1077 uschar *sender_verify_failure = NULL;
1078 address_item *sender_verified_list  = NULL;
1079 address_item *sender_verified_failed = NULL;
1080 int     sender_verified_rc     = -1;
1081 BOOL    sender_verified_responded = FALSE;
1082 uschar *sending_ip_address     = NULL;
1083 int     sending_port           = -1;
1084 volatile  BOOL sigalrm_seen    = FALSE;
1085 uschar **sighup_argv           = NULL;
1086 int     smtp_accept_count      = 0;
1087 BOOL    smtp_accept_keepalive  = TRUE;
1088 int     smtp_accept_max        = 20;
1089 int     smtp_accept_max_nonmail= 10;
1090 uschar *smtp_accept_max_nonmail_hosts = US"*";
1091 int     smtp_accept_max_per_connection = 1000;
1092 uschar *smtp_accept_max_per_host = NULL;
1093 int     smtp_accept_queue      = 0;
1094 int     smtp_accept_queue_per_connection = 10;
1095 int     smtp_accept_reserve    = 0;
1096 uschar *smtp_active_hostname   = NULL;
1097 BOOL    smtp_authenticated     = FALSE;
1098 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1099                              "Exim $version_number $tod_full"
1100                              "\0<---------------Space to patch smtp_banner->";
1101 BOOL    smtp_batched_input     = FALSE;
1102 BOOL    smtp_check_spool_space = TRUE;
1103 int     smtp_ch_index          = 0;
1104 uschar *smtp_cmd_argument      = NULL;
1105 uschar *smtp_cmd_buffer        = NULL;
1106 time_t  smtp_connection_start  = 0;
1107 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1108 int     smtp_connect_backlog   = 20;
1109 double  smtp_delay_mail        = 0.0;
1110 double  smtp_delay_rcpt        = 0.0;
1111 BOOL    smtp_enforce_sync      = TRUE;
1112 FILE   *smtp_in                = NULL;
1113 BOOL    smtp_input             = FALSE;
1114 int     smtp_load_reserve      = -1;
1115 int     smtp_mailcmd_count     = 0;
1116 FILE   *smtp_out               = NULL;
1117 uschar *smtp_etrn_command      = NULL;
1118 BOOL    smtp_etrn_serialize    = TRUE;
1119 int     smtp_max_synprot_errors= 3;
1120 int     smtp_max_unknown_commands = 3;
1121 uschar *smtp_notquit_reason    = NULL;
1122 uschar *smtp_ratelimit_hosts   = NULL;
1123 uschar *smtp_ratelimit_mail    = NULL;
1124 uschar *smtp_ratelimit_rcpt    = NULL;
1125 uschar *smtp_read_error        = US"";
1126 int     smtp_receive_timeout   = 5*60;
1127 uschar *smtp_reserve_hosts     = NULL;
1128 BOOL    smtp_return_error_details = FALSE;
1129 int     smtp_rlm_base          = 0;
1130 double  smtp_rlm_factor        = 0.0;
1131 int     smtp_rlm_limit         = 0;
1132 int     smtp_rlm_threshold     = INT_MAX;
1133 int     smtp_rlr_base          = 0;
1134 double  smtp_rlr_factor        = 0.0;
1135 int     smtp_rlr_limit         = 0;
1136 int     smtp_rlr_threshold     = INT_MAX;
1137 BOOL    smtp_use_pipelining    = FALSE;
1138 BOOL    smtp_use_size          = FALSE;
1139
1140 #ifdef WITH_CONTENT_SCAN
1141 uschar *spamd_address          = US"127.0.0.1 783";
1142 uschar *spam_bar               = NULL;
1143 uschar *spam_report            = NULL;
1144 uschar *spam_score             = NULL;
1145 uschar *spam_score_int         = NULL;
1146 #endif
1147 #ifdef EXPERIMENTAL_SPF
1148 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1149 uschar *spf_header_comment     = NULL;
1150 uschar *spf_received           = NULL;
1151 uschar *spf_result             = NULL;
1152 uschar *spf_smtp_comment       = NULL;
1153 #endif
1154
1155 BOOL    split_spool_directory  = FALSE;
1156 uschar *spool_directory        = US SPOOL_DIRECTORY
1157                            "\0<--------------Space to patch spool_directory->";
1158 #ifdef EXPERIMENTAL_SRS
1159 uschar *srs_config             = NULL;
1160 uschar *srs_db_address         = NULL;
1161 uschar *srs_db_key             = NULL;
1162 int     srs_hashlength         = 6;
1163 int     srs_hashmin            = -1;
1164 int     srs_maxage             = 31;
1165 uschar *srs_orig_recipient     = NULL;
1166 uschar *srs_orig_sender        = NULL;
1167 uschar *srs_recipient          = NULL;
1168 uschar *srs_secrets            = NULL;
1169 uschar *srs_status             = NULL;
1170 BOOL    srs_usehash            = TRUE;
1171 BOOL    srs_usetimestamp       = TRUE;
1172 #endif
1173 BOOL    strict_acl_vars        = FALSE;
1174 int     string_datestamp_offset= -1;
1175 BOOL    strip_excess_angle_brackets = FALSE;
1176 BOOL    strip_trailing_dot     = FALSE;
1177 uschar *submission_domain      = NULL;
1178 BOOL    submission_mode        = FALSE;
1179 uschar *submission_name        = NULL;
1180 BOOL    suppress_local_fixups  = FALSE;
1181 BOOL    synchronous_delivery   = FALSE;
1182 BOOL    syslog_duplication     = TRUE;
1183 int     syslog_facility        = LOG_MAIL;
1184 uschar *syslog_processname     = US"exim";
1185 BOOL    syslog_timestamp       = TRUE;
1186 uschar *system_filter          = NULL;
1187
1188 uschar *system_filter_directory_transport = NULL;
1189 uschar *system_filter_file_transport = NULL;
1190 uschar *system_filter_pipe_transport = NULL;
1191 uschar *system_filter_reply_transport = NULL;
1192
1193 gid_t   system_filter_gid      = 0;
1194 BOOL    system_filter_gid_set  = FALSE;
1195 uid_t   system_filter_uid      = (uid_t)-1;
1196 BOOL    system_filter_uid_set  = FALSE;
1197 BOOL    system_filtering       = FALSE;
1198
1199 BOOL    tcp_nodelay            = TRUE;
1200 #ifdef USE_TCP_WRAPPERS
1201 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1202 #endif
1203 int     test_harness_load_avg  = 0;
1204 int     thismessage_size_limit = 0;
1205 int     timeout_frozen_after   = 0;
1206 BOOL    timestamps_utc         = FALSE;
1207
1208 transport_instance  *transports = NULL;
1209
1210 transport_instance  transport_defaults = {
1211     NULL,                     /* chain pointer */
1212     NULL,                     /* name */
1213     NULL,                     /* info */
1214     NULL,                     /* private options block pointer */
1215     NULL,                     /* driver name */
1216     NULL,                     /* setup entry point */
1217     1,                        /* batch_max */
1218     NULL,                     /* batch_id */
1219     NULL,                     /* home_dir */
1220     NULL,                     /* current_dir */
1221     TRUE,                     /* multi-domain */
1222     FALSE,                    /* overrides_hosts */
1223     100,                      /* max_addresses */
1224     500,                      /* connection_max_messages */
1225     FALSE,                    /* deliver_as_creator */
1226     FALSE,                    /* disable_logging */
1227     FALSE,                    /* initgroups */
1228     FALSE,                    /* uid_set */
1229     FALSE,                    /* gid_set */
1230     (uid_t)(-1),              /* uid */
1231     (gid_t)(-1),              /* gid */
1232     NULL,                     /* expand_uid */
1233     NULL,                     /* expand_gid */
1234     NULL,                     /* warn_message */
1235     NULL,                     /* shadow */
1236     NULL,                     /* shadow_condition */
1237     NULL,                     /* filter_command */
1238     NULL,                     /* add_headers */
1239     NULL,                     /* remove_headers */
1240     NULL,                     /* return_path */
1241     NULL,                     /* debug_string */
1242     NULL,                     /* message_size_limit */
1243     NULL,                     /* headers_rewrite */
1244     NULL,                     /* rewrite_rules */
1245     0,                        /* rewrite_existflags */
1246     300,                      /* filter_timeout */
1247     FALSE,                    /* body_only */
1248     FALSE,                    /* delivery_date_add */
1249     FALSE,                    /* envelope_to_add */
1250     FALSE,                    /* headers_only */
1251     FALSE,                    /* rcpt_include_affixes */
1252     FALSE,                    /* return_path_add */
1253     FALSE,                    /* return_output */
1254     FALSE,                    /* return_fail_output */
1255     FALSE,                    /* log_output */
1256     FALSE,                    /* log_fail_output */
1257     FALSE,                    /* log_defer_output */
1258     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1259                                  1 nor 0 so can detect unset */
1260 };
1261
1262 int     transport_count;
1263 uschar **transport_filter_argv  = NULL;
1264 int     transport_filter_timeout;
1265 BOOL    transport_filter_timed_out = FALSE;
1266 int     transport_write_timeout= 0;
1267
1268 tree_node  *tree_dns_fails     = NULL;
1269 tree_node  *tree_duplicates    = NULL;
1270 tree_node  *tree_nonrecipients = NULL;
1271 tree_node  *tree_unusable      = NULL;
1272
1273 BOOL    trusted_caller         = FALSE;
1274 BOOL    trusted_config         = TRUE;
1275 gid_t  *trusted_groups         = NULL;
1276 uid_t  *trusted_users          = NULL;
1277 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1278
1279 uschar *unknown_login          = NULL;
1280 uschar *unknown_username       = NULL;
1281 uschar *untrusted_set_sender   = NULL;
1282
1283 /*  A regex for matching a "From_" line in an incoming message, in the form
1284
1285     From ph10 Fri Jan  5 12:35 GMT 1996
1286
1287 which  the "mail" commands send to the MTA (undocumented, of course), or in
1288 the  form
1289
1290     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1291
1292 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1293 Because  of variations in time formats, just match up to the minutes. That
1294 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1295 so  just require one digit for hours and minutes. The weekday is also absent
1296 in  some forms. */
1297
1298 uschar *uucp_from_pattern      = US
1299    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1300    "(?:"                                          /* Non-extracting bracket */
1301    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1302    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1303    ")"                                            /* End alternation */
1304    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1305
1306 uschar *uucp_from_sender       = US"$1";
1307
1308 uschar *warn_message_file      = NULL;
1309 uschar *warnmsg_delay          = NULL;
1310 uschar *warnmsg_recipients     = NULL;
1311 BOOL    write_rejectlog        = TRUE;
1312
1313 uschar *version_copyright      = US"Copyright (c) University of Cambridge, 1995 - 2007";
1314 uschar *version_date           = US"?";
1315 uschar *version_cnumber        = US"????";
1316 uschar *version_string         = US"?";
1317
1318 int     warning_count          = 0;
1319
1320 /*  End of globals.c */