src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.72 2007/04/13 15:13:47 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_condition)) },
  43   { "server_debug_print", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_debug_string)) },
  45   { "server_mail_auth_condition", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  47   { "server_set_id", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, set_id)) }
  49 };
  50
  51 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  52
  53 /* An empty host aliases list. */
  54
  55 uschar *no_aliases             = NULL;
  56
  57
  58 /* For comments on these variables, see globals.h. I'm too idle to
  59 duplicate them here... */
  60
  61 #ifdef EXIM_PERL
  62 uschar *opt_perl_startup       = NULL;
  63 BOOL    opt_perl_at_start      = FALSE;
  64 BOOL    opt_perl_started       = FALSE;
  65 #endif
  66
  67 #ifdef EXPAND_DLFUNC
  68 tree_node *dlobj_anchor        = NULL;
  69 #endif
  70
  71 #ifdef LOOKUP_IBASE
  72 uschar *ibase_servers          = NULL;
  73 #endif
  74
  75 #ifdef LOOKUP_LDAP
  76 uschar *eldap_default_servers  = NULL;
  77 int     eldap_version          = -1;
  78 #endif
  79
  80 #ifdef LOOKUP_MYSQL
  81 uschar *mysql_servers          = NULL;
  82 #endif
  83
  84 #ifdef LOOKUP_ORACLE
  85 uschar *oracle_servers         = NULL;
  86 #endif
  87
  88 #ifdef LOOKUP_PGSQL
  89 uschar *pgsql_servers          = NULL;
  90 #endif
  91
  92 #ifdef LOOKUP_SQLITE
  93 int     sqlite_lock_timeout    = 5;
  94 #endif
  95
  96 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  97 BOOL    move_frozen_messages   = FALSE;
  98 #endif
  99
 100 /* These variables are outside the #ifdef because it keeps the code less
 101 cluttered in several places (e.g. during logging) if we can always refer to
 102 them. Also, the tls_ variables are now always visible. */
 103
 104 BOOL    tls_active             = -1;
 105 BOOL    tls_certificate_verified = FALSE;
 106 uschar *tls_cipher             = NULL;
 107 BOOL    tls_on_connect         = FALSE;
 108 uschar *tls_on_connect_ports   = NULL;
 109 uschar *tls_peerdn             = NULL;
 110
 111 #ifdef SUPPORT_TLS
 112 uschar *gnutls_require_mac     = NULL;
 113 uschar *gnutls_require_kx      = NULL;
 114 uschar *gnutls_require_proto   = NULL;
 115 const pcre *regex_STARTTLS     = NULL;
 116 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 117 uschar *tls_certificate        = NULL;
 118 uschar *tls_crl                = NULL;
 119 uschar *tls_dhparam            = NULL;
 120 BOOL    tls_offered            = FALSE;
 121 uschar *tls_privatekey         = NULL;
 122 BOOL    tls_remember_esmtp     = FALSE;
 123 uschar *tls_require_ciphers    = NULL;
 124 uschar *tls_try_verify_hosts   = NULL;
 125 uschar *tls_verify_certificates= NULL;
 126 uschar *tls_verify_hosts       = NULL;
 127 #endif
 128
 129
 130 /* Input-reading functions for messages, so we can use special ones for
 131 incoming TCP/IP. The defaults use stdin. We never need these for any
 132 stand-alone tests. */
 133
 134 #ifndef STAND_ALONE
 135 int (*receive_getc)(void)      = stdin_getc;
 136 int (*receive_ungetc)(int)     = stdin_ungetc;
 137 int (*receive_feof)(void)      = stdin_feof;
 138 int (*receive_ferror)(void)    = stdin_ferror;
 139 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 140 #endif
 141
 142
 143 /* List of per-address expansion variables for clearing and saving/restoring
 144 when verifying one address while routing/verifying another. We have to have
 145 the size explicit, because it is referenced from more than one module. */
 146
 147 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 148   &deliver_address_data,
 149   &deliver_domain,
 150   &deliver_domain_data,
 151   &deliver_domain_orig,
 152   &deliver_domain_parent,
 153   &deliver_localpart,
 154   &deliver_localpart_data,
 155   &deliver_localpart_orig,
 156   &deliver_localpart_parent,
 157   &deliver_localpart_prefix,
 158   &deliver_localpart_suffix,
 159   (uschar **)(&deliver_recipients),
 160   &deliver_host,
 161   &deliver_home,
 162   &address_file,
 163   &address_pipe,
 164   &self_hostname,
 165   NULL };
 166
 167 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 168
 169 /* General global variables */
 170
 171 header_line *acl_added_headers = NULL;
 172 tree_node *acl_anchor          = NULL;
 173 uschar *acl_not_smtp           = NULL;
 174 #ifdef WITH_CONTENT_SCAN
 175 uschar *acl_not_smtp_mime      = NULL;
 176 #endif
 177 uschar *acl_not_smtp_start     = NULL;
 178 uschar *acl_smtp_auth          = NULL;
 179 uschar *acl_smtp_connect       = NULL;
 180 uschar *acl_smtp_data          = NULL;
 181 uschar *acl_smtp_etrn          = NULL;
 182 uschar *acl_smtp_expn          = NULL;
 183 uschar *acl_smtp_helo          = NULL;
 184 uschar *acl_smtp_mail          = NULL;
 185 uschar *acl_smtp_mailauth      = NULL;
 186 #ifdef WITH_CONTENT_SCAN
 187 uschar *acl_smtp_mime          = NULL;
 188 #endif
 189 uschar *acl_smtp_predata       = NULL;
 190 uschar *acl_smtp_quit          = NULL;
 191 uschar *acl_smtp_rcpt          = NULL;
 192 uschar *acl_smtp_starttls      = NULL;
 193 uschar *acl_smtp_vrfy          = NULL;
 194 BOOL    acl_temp_details       = FALSE;
 195 tree_node *acl_var_c           = NULL;
 196 tree_node *acl_var_m           = NULL;
 197 uschar *acl_verify_message     = NULL;
 198 string_item *acl_warn_logged   = NULL;
 199
 200 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 201 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 202
 203 uschar *acl_wherenames[]       = { US"RCPT",
 204                                    US"MAIL",
 205                                    US"PREDATA",
 206                                    US"MIME",
 207                                    US"DATA",
 208                                    US"non-SMTP",
 209                                    US"AUTH",
 210                                    US"connection",
 211                                    US"ETRN",
 212                                    US"EXPN",
 213                                    US"EHLO or HELO",
 214                                    US"MAILAUTH",
 215                                    US"non-SMTP-start",
 216                                    US"QUIT",
 217                                    US"STARTTLS",
 218                                    US"VRFY"
 219                                  };
 220
 221 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 222                                    US"550",     /* MAIL */
 223                                    US"550",     /* PREDATA */
 224                                    US"550",     /* MIME */
 225                                    US"550",     /* DATA */
 226                                    US"0",       /* not SMTP; not relevant */
 227                                    US"503",     /* AUTH */
 228                                    US"550",     /* connect */
 229                                    US"458",     /* ETRN */
 230                                    US"550",     /* EXPN */
 231                                    US"550",     /* HELO/EHLO */
 232                                    US"0",       /* MAILAUTH; not relevant */
 233                                    US"0",       /* not SMTP; not relevant */
 234                                    US"0",       /* QUIT; not relevant */
 235                                    US"550",     /* STARTTLS */
 236                                    US"252"      /* VRFY */
 237                                  };
 238
 239 BOOL    active_local_from_check = FALSE;
 240 BOOL    active_local_sender_retain = FALSE;
 241 BOOL    accept_8bitmime        = FALSE;
 242 address_item  *addr_duplicate  = NULL;
 243
 244 address_item address_defaults = {
 245   NULL,                 /* next */
 246   NULL,                 /* parent */
 247   NULL,                 /* first */
 248   NULL,                 /* dupof */
 249   NULL,                 /* start_router */
 250   NULL,                 /* router */
 251   NULL,                 /* transport */
 252   NULL,                 /* host_list */
 253   NULL,                 /* host_used */
 254   NULL,                 /* fallback_hosts */
 255   NULL,                 /* reply */
 256   NULL,                 /* retries */
 257   NULL,                 /* address */
 258   NULL,                 /* unique */
 259   NULL,                 /* cc_local_part */
 260   NULL,                 /* lc_local_part */
 261   NULL,                 /* local_part */
 262   NULL,                 /* prefix */
 263   NULL,                 /* suffix */
 264   NULL,                 /* domain */
 265   NULL,                 /* address_retry_key */
 266   NULL,                 /* domain_retry_key */
 267   NULL,                 /* current_dir */
 268   NULL,                 /* home_dir */
 269   NULL,                 /* message */
 270   NULL,                 /* user_message */
 271   NULL,                 /* onetime_parent */
 272   NULL,                 /* pipe_expandn */
 273   NULL,                 /* return_filename */
 274   NULL,                 /* self_hostname */
 275   NULL,                 /* shadow_message */
 276   #ifdef SUPPORT_TLS
 277   NULL,                 /* cipher */
 278   NULL,                 /* peerdn */
 279   #endif
 280   (uid_t)(-1),          /* uid */
 281   (gid_t)(-1),          /* gid */
 282   0,                    /* flags */
 283   { 0 },                /* domain_cache - any larger array should be zeroed */
 284   { 0 },                /* localpart_cache - ditto */
 285   -1,                   /* mode */
 286   0,                    /* more_errno */
 287   ERRNO_UNKNOWNERROR,   /* basic_errno */
 288   0,                    /* child_count */
 289   -1,                   /* return_file */
 290   SPECIAL_NONE,         /* special_action */
 291   DEFER,                /* transport_return */
 292   {                     /* fields that are propagated to children */
 293     NULL,               /* address_data */
 294     NULL,               /* domain_data */
 295     NULL,               /* localpart_data */
 296     NULL,               /* errors_address */
 297     NULL,               /* extra_headers */
 298     NULL,               /* remove_headers */
 299 #ifdef EXPERIMENTAL_SRS
 300     NULL,               /* srs_sender */
 301 #endif
 302   }
 303 };
 304
 305 uschar *address_file           = NULL;
 306 uschar *address_pipe           = NULL;
 307 BOOL    address_test_mode      = FALSE;
 308 tree_node *addresslist_anchor  = NULL;
 309 int     addresslist_count      = 0;
 310 gid_t  *admin_groups           = NULL;
 311 BOOL    admin_user             = FALSE;
 312 BOOL    allow_auth_unadvertised= FALSE;
 313 BOOL    allow_domain_literals  = FALSE;
 314 BOOL    allow_mx_to_ip         = FALSE;
 315 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 316 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 317 BOOL    allow_utf8_domains     = FALSE;
 318 uschar *authenticated_id       = NULL;
 319 uschar *authenticated_sender   = NULL;
 320 BOOL    authentication_failed  = FALSE;
 321 auth_instance  *auths          = NULL;
 322 uschar *auth_advertise_hosts   = US"*";
 323 auth_instance auth_defaults    = {
 324     NULL,                      /* chain pointer */
 325     NULL,                      /* name */
 326     NULL,                      /* info */
 327     NULL,                      /* private options block pointer */
 328     NULL,                      /* driver_name */
 329     NULL,                      /* advertise_condition */
 330     NULL,                      /* public_name */
 331     NULL,                      /* set_id */
 332     NULL,                      /* server_mail_auth_condition */
 333     NULL,                      /* server_debug_string */
 334     NULL,                      /* server_condition */
 335     FALSE,                     /* client */
 336     FALSE,                     /* server */
 337     FALSE                      /* advertised */
 338 };
 339
 340 uschar *auth_defer_msg         = US"reason not recorded";
 341 uschar *auth_defer_user_msg    = US"";
 342 uschar *auth_vars[AUTH_VARS];
 343 int     auto_thaw              = 0;
 344 #ifdef WITH_CONTENT_SCAN
 345 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 346 #endif
 347
 348 BOOL    background_daemon      = TRUE;
 349
 350 #if BASE_62 == 62
 351 uschar *base62_chars=
 352     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 353 #else
 354 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 355 #endif
 356
 357 uschar *bi_command             = NULL;
 358 uschar *big_buffer             = NULL;
 359 int     big_buffer_size        = BIG_BUFFER_SIZE;
 360 #ifdef EXPERIMENTAL_BRIGHTMAIL
 361 uschar *bmi_alt_location       = NULL;
 362 uschar *bmi_base64_tracker_verdict = NULL;
 363 uschar *bmi_base64_verdict     = NULL;
 364 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 365 int     bmi_deliver            = 1;
 366 int     bmi_run                = 0;
 367 uschar *bmi_verdicts           = NULL;
 368 #endif
 369 int     body_linecount         = 0;
 370 int     body_zerocount         = 0;
 371 uschar *bounce_message_file    = NULL;
 372 uschar *bounce_message_text    = NULL;
 373 uschar *bounce_recipient       = NULL;
 374 BOOL    bounce_return_body     = TRUE;
 375 BOOL    bounce_return_message  = TRUE;
 376 int     bounce_return_size_limit = 100*1024;
 377 uschar *bounce_sender_authentication = NULL;
 378 int     bsmtp_transaction_linecount = 0;
 379
 380 int     callout_cache_domain_positive_expire = 7*24*60*60;
 381 int     callout_cache_domain_negative_expire = 3*60*60;
 382 int     callout_cache_positive_expire = 24*60*60;
 383 int     callout_cache_negative_expire = 2*60*60;
 384 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 385 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 386 int     check_log_inodes       = 0;
 387 int     check_log_space        = 0;
 388 BOOL    check_rfc2047_length   = TRUE;
 389 int     check_spool_inodes     = 0;
 390 int     check_spool_space      = 0;
 391 int     clmacro_count          = 0;
 392 uschar *clmacros[MAX_CLMACROS];
 393 BOOL    config_changed         = FALSE;
 394 FILE   *config_file            = NULL;
 395 uschar *config_filename        = NULL;
 396 int     config_lineno          = 0;
 397 #ifdef CONFIGURE_GROUP
 398 gid_t   config_gid             = CONFIGURE_GROUP;
 399 #endif
 400 uschar *config_main_filelist   = US CONFIGURE_FILE
 401                          "\0<-----------Space to patch configure_filename->";
 402 uschar *config_main_filename   = NULL;
 403
 404 #ifdef CONFIGURE_OWNER
 405 uid_t   config_uid             = CONFIGURE_OWNER;
 406 #endif
 407
 408 int     connection_max_messages= -1;
 409 uschar *continue_hostname      = NULL;
 410 uschar *continue_host_address  = NULL;
 411 BOOL    continue_more          = FALSE;
 412 int     continue_sequence      = 1;
 413 uschar *continue_transport     = NULL;
 414
 415 uschar *csa_status             = NULL;
 416
 417 BOOL    daemon_listen          = FALSE;
 418 uschar *daemon_smtp_port       = US"smtp";
 419 int     daemon_startup_retries = 9;
 420 int     daemon_startup_sleep   = 30;
 421 BOOL    debug_daemon           = FALSE;
 422 int     debug_fd               = -1;
 423 FILE   *debug_file             = NULL;
 424 bit_table debug_options[]      = {
 425   { US"acl",            D_acl },
 426   { US"all",            D_all },
 427   { US"auth",           D_auth },
 428   { US"deliver",        D_deliver },
 429   { US"dns",            D_dns },
 430   { US"dnsbl",          D_dnsbl },
 431   { US"exec",           D_exec },
 432   { US"expand",         D_expand },
 433   { US"filter",         D_filter },
 434   { US"hints_lookup",   D_hints_lookup },
 435   { US"host_lookup",    D_host_lookup },
 436   { US"ident",          D_ident },
 437   { US"interface",      D_interface },
 438   { US"lists",          D_lists },
 439   { US"load",           D_load },
 440   { US"local_scan",     D_local_scan },
 441   { US"lookup",         D_lookup },
 442   { US"memory",         D_memory },
 443   { US"pid",            D_pid },
 444   { US"process_info",   D_process_info },
 445   { US"queue_run",      D_queue_run },
 446   { US"receive",        D_receive },
 447   { US"resolver",       D_resolver },
 448   { US"retry",          D_retry },
 449   { US"rewrite",        D_rewrite },
 450   { US"route",          D_route },
 451   { US"timestamp",      D_timestamp },
 452   { US"tls",            D_tls },
 453   { US"transport",      D_transport },
 454   { US"uid",            D_uid },
 455   { US"verify",         D_verify }
 456 };
 457 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 458 unsigned int debug_selector    = 0;
 459 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 460 uschar *delay_warning_condition=
 461   US"${if or {"
 462             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 463             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 464             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 465             "} {no}{yes}}";
 466 BOOL    delivery_date_remove   = TRUE;
 467 uschar *deliver_address_data   = NULL;
 468 int     deliver_datafile       = -1;
 469 uschar *deliver_domain         = NULL;
 470 uschar *deliver_domain_data    = NULL;
 471 uschar *deliver_domain_orig    = NULL;
 472 uschar *deliver_domain_parent  = NULL;
 473 BOOL    deliver_drop_privilege = FALSE;
 474 BOOL    deliver_firsttime      = FALSE;
 475 BOOL    deliver_force          = FALSE;
 476 BOOL    deliver_freeze         = FALSE;
 477 int     deliver_frozen_at      = 0;
 478 uschar *deliver_home           = NULL;
 479 uschar *deliver_host           = NULL;
 480 uschar *deliver_host_address   = NULL;
 481 uschar *deliver_in_buffer      = NULL;
 482 ino_t   deliver_inode          = 0;
 483 uschar *deliver_localpart      = NULL;
 484 uschar *deliver_localpart_data = NULL;
 485 uschar *deliver_localpart_orig = NULL;
 486 uschar *deliver_localpart_parent = NULL;
 487 uschar *deliver_localpart_prefix = NULL;
 488 uschar *deliver_localpart_suffix = NULL;
 489 BOOL    deliver_force_thaw     = FALSE;
 490 BOOL    deliver_manual_thaw    = FALSE;
 491 uschar *deliver_out_buffer     = NULL;
 492 int     deliver_queue_load_max = -1;
 493 address_item  *deliver_recipients = NULL;
 494 uschar *deliver_selectstring   = NULL;
 495 BOOL    deliver_selectstring_regex = FALSE;
 496 uschar *deliver_selectstring_sender = NULL;
 497 BOOL    deliver_selectstring_sender_regex = FALSE;
 498 #ifdef WITH_OLD_DEMIME
 499 int     demime_errorlevel      = 0;
 500 int     demime_ok              = 0;
 501 uschar *demime_reason          = NULL;
 502 #endif
 503 BOOL    disable_callout_flush  = FALSE;
 504 BOOL    disable_delay_flush    = FALSE;
 505 #ifdef ENABLE_DISABLE_FSYNC
 506 BOOL    disable_fsync          = FALSE;
 507 #endif
 508 BOOL    disable_ipv6           = FALSE;
 509 BOOL    disable_logging        = FALSE;
 510
 511 #ifdef EXPERIMENTAL_DOMAINKEYS
 512 uschar *dk_signing_domain      = NULL;
 513 uschar *dk_signing_selector    = NULL;
 514 int     dk_do_verify           = 0;
 515 #endif
 516
 517 uschar *dns_again_means_nonexist = NULL;
 518 int     dns_csa_search_limit   = 5;
 519 BOOL    dns_csa_use_reverse    = TRUE;
 520 uschar *dns_ipv4_lookup        = NULL;
 521 int     dns_retrans            = 0;
 522 int     dns_retry              = 0;
 523 uschar *dnslist_domain         = NULL;
 524 uschar *dnslist_text           = NULL;
 525 uschar *dnslist_value          = NULL;
 526 tree_node *domainlist_anchor   = NULL;
 527 int     domainlist_count       = 0;
 528 BOOL    dont_deliver           = FALSE;
 529 BOOL    dot_ends               = TRUE;
 530 BOOL    drop_cr                = FALSE;         /* No longer used */
 531 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 532
 533 BOOL    enable_dollar_recipients = FALSE;
 534 BOOL    envelope_to_remove     = TRUE;
 535 int     errno_quota            = ERRNO_QUOTA;
 536 uschar *errors_copy            = NULL;
 537 int     error_handling         = ERRORS_SENDER;
 538 uschar *errors_reply_to        = NULL;
 539 int     errors_sender_rc       = EXIT_FAILURE;
 540
 541 gid_t   exim_gid               = EXIM_GID;
 542 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 543 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 544                         "\0<---------------Space to patch exim_path->";
 545 uid_t   exim_uid               = EXIM_UID;
 546 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 547 int     expand_forbid          = 0;
 548 int     expand_nlength[EXPAND_MAXN+1];
 549 int     expand_nmax            = -1;
 550 uschar *expand_nstring[EXPAND_MAXN+1];
 551 BOOL    expand_string_forcedfail = FALSE;
 552 uschar *expand_string_message;
 553 BOOL    extract_addresses_remove_arguments = TRUE;
 554 uschar *extra_local_interfaces = NULL;
 555
 556 int     fake_response          = OK;
 557 uschar *fake_response_text     = US"Your message has been rejected but is "
 558                                    "being kept for evaluation.\nIf it was a "
 559                                    "legitimate message, it may still be "
 560                                    "delivered to the target recipient(s).";
 561 int     filter_n[FILTER_VARIABLE_COUNT];
 562 BOOL    filter_running         = FALSE;
 563 int     filter_sn[FILTER_VARIABLE_COUNT];
 564 int     filter_test            = FTEST_NONE;
 565 uschar *filter_test_sfile      = NULL;
 566 uschar *filter_test_ufile      = NULL;
 567 uschar *filter_thisaddress     = NULL;
 568 int     finduser_retries       = 0;
 569 #ifdef WITH_OLD_DEMIME
 570 uschar *found_extension        = NULL;
 571 #endif
 572 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 573 uschar *freeze_tell            = NULL;
 574 uschar *freeze_tell_config     = NULL;
 575 uschar *fudged_queue_times     = US"";
 576
 577 uschar *gecos_name             = NULL;
 578 uschar *gecos_pattern          = NULL;
 579 rewrite_rule  *global_rewrite_rules = NULL;
 580
 581 uschar *headers_charset        = US HEADERS_CHARSET;
 582 int     header_insert_maxlen   = 64 * 1024;
 583 header_line  *header_last      = NULL;
 584 header_line  *header_list      = NULL;
 585 int     header_maxsize         = HEADER_MAXSIZE;
 586 int     header_line_maxsize    = 0;
 587
 588 header_name header_names[] = {
 589   { US"bcc",            3, TRUE,  htype_bcc },
 590   { US"cc",             2, TRUE,  htype_cc },
 591   { US"date",           4, TRUE,  htype_date },
 592   { US"delivery-date", 13, FALSE, htype_delivery_date },
 593   { US"envelope-to",   11, FALSE, htype_envelope_to },
 594   { US"from",           4, TRUE,  htype_from },
 595   { US"message-id",    10, TRUE,  htype_id },
 596   { US"received",       8, FALSE, htype_received },
 597   { US"reply-to",       8, FALSE, htype_reply_to },
 598   { US"return-path",   11, FALSE, htype_return_path },
 599   { US"sender",         6, TRUE,  htype_sender },
 600   { US"subject",        7, FALSE, htype_subject },
 601   { US"to",             2, TRUE,  htype_to }
 602 };
 603
 604 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 605
 606 BOOL    header_rewritten       = FALSE;
 607 uschar *helo_accept_junk_hosts = NULL;
 608 uschar *helo_allow_chars       = US"";
 609 uschar *helo_lookup_domains    = US"@ : @[]";
 610 uschar *helo_try_verify_hosts  = NULL;
 611 BOOL    helo_verified          = FALSE;
 612 BOOL    helo_verify_failed     = FALSE;
 613 uschar *helo_verify_hosts      = NULL;
 614 uschar *hex_digits             = US"0123456789abcdef";
 615 uschar *hold_domains           = NULL;
 616 BOOL    host_checking          = FALSE;
 617 BOOL    host_checking_callout  = FALSE;
 618 uschar *host_data              = NULL;
 619 BOOL    host_find_failed_syntax= FALSE;
 620 uschar *host_lookup            = NULL;
 621 BOOL    host_lookup_deferred   = FALSE;
 622 BOOL    host_lookup_failed     = FALSE;
 623 uschar *host_lookup_order      = US"bydns:byaddr";
 624 uschar *host_lookup_msg        = US"";
 625 int     host_number            = 0;
 626 uschar *host_number_string     = NULL;
 627 uschar *host_reject_connection = NULL;
 628 tree_node *hostlist_anchor     = NULL;
 629 int     hostlist_count         = 0;
 630 uschar *hosts_treat_as_local   = NULL;
 631 uschar *hosts_connection_nolog = NULL;
 632
 633 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 634 BOOL    ignore_fromline_local  = FALSE;
 635 uschar *ignore_fromline_hosts  = NULL;
 636 uschar *interface_address      = NULL;
 637 int     interface_port         = -1;
 638 BOOL    is_inetd               = FALSE;
 639 uschar *iterate_item           = NULL;
 640
 641 int     journal_fd             = -1;
 642
 643 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 644
 645 uschar *eldap_dn               = NULL;
 646 int     load_average           = -2;
 647 BOOL    local_error_message    = FALSE;
 648 BOOL    local_from_check       = TRUE;
 649 uschar *local_from_prefix      = NULL;
 650 uschar *local_from_suffix      = NULL;
 651
 652 #if HAVE_IPV6
 653 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 654 #else
 655 uschar *local_interfaces       = US"0.0.0.0";
 656 #endif
 657
 658 uschar *local_scan_data        = NULL;
 659 int     local_scan_timeout     = 5*60;
 660 BOOL    local_sender_retain    = FALSE;
 661 gid_t   local_user_gid         = (gid_t)(-1);
 662 uid_t   local_user_uid         = (uid_t)(-1);
 663
 664 tree_node *localpartlist_anchor= NULL;
 665 int     localpartlist_count    = 0;
 666 uschar *log_buffer             = NULL;
 667 unsigned int log_extra_selector = LX_default;
 668 uschar *log_file_path          = US LOG_FILE_PATH
 669                            "\0<--------------Space to patch log_file_path->";
 670
 671 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 672 are the ones that get put into log_write_selector. They can be used in calls to
 673 log_write() to test for the bit. The options with LX_xxx identifiers have
 674 values greater than 0x80000000 and are put int log_extra_selector (without the
 675 top bit). They are never used in calls to log_write(), but are tested
 676 independently. This separation became necessary when the number of log
 677 selectors was getting close to filling a 32-bit word. */
 678
 679 /* Note that this list must be in alphabetical order. */
 680
 681 bit_table log_options[]        = {
 682   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 683   { US"address_rewrite",              L_address_rewrite },
 684   { US"all",                          L_all },
 685   { US"all_parents",                  L_all_parents },
 686   { US"arguments",                    LX_arguments },
 687   { US"connection_reject",            L_connection_reject },
 688   { US"delay_delivery",               L_delay_delivery },
 689   { US"deliver_time",                 LX_deliver_time },
 690   { US"delivery_size",                LX_delivery_size },
 691   { US"dnslist_defer",                L_dnslist_defer },
 692   { US"etrn",                         L_etrn },
 693   { US"host_lookup_failed",           L_host_lookup_failed },
 694   { US"ident_timeout",                LX_ident_timeout },
 695   { US"incoming_interface",           LX_incoming_interface },
 696   { US"incoming_port",                LX_incoming_port },
 697   { US"lost_incoming_connection",     L_lost_incoming_connection },
 698   { US"outgoing_port",                LX_outgoing_port },
 699   { US"pid",                          LX_pid },
 700   { US"queue_run",                    L_queue_run },
 701   { US"queue_time",                   LX_queue_time },
 702   { US"queue_time_overall",           LX_queue_time_overall },
 703   { US"received_recipients",          LX_received_recipients },
 704   { US"received_sender",              LX_received_sender },
 705   { US"rejected_header",              LX_rejected_header },
 706   { US"rejected_headers",             LX_rejected_header },
 707   { US"retry_defer",                  L_retry_defer },
 708   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 709   { US"sender_on_delivery",           LX_sender_on_delivery },
 710   { US"sender_verify_fail",           LX_sender_verify_fail },
 711   { US"size_reject",                  L_size_reject },
 712   { US"skip_delivery",                L_skip_delivery },
 713   { US"smtp_confirmation",            LX_smtp_confirmation },
 714   { US"smtp_connection",              L_smtp_connection },
 715   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 716   { US"smtp_no_mail",                 LX_smtp_no_mail },
 717   { US"smtp_protocol_error",          L_smtp_protocol_error },
 718   { US"smtp_syntax_error",            L_smtp_syntax_error },
 719   { US"subject",                      LX_subject },
 720   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 721   { US"tls_cipher",                   LX_tls_cipher },
 722   { US"tls_peerdn",                   LX_tls_peerdn },
 723   { US"unknown_in_list",              LX_unknown_in_list }
 724 };
 725
 726 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 727 int     log_reject_target      = 0;
 728 uschar *log_selector_string    = NULL;
 729 FILE   *log_stderr             = NULL;
 730 BOOL    log_testing_mode       = FALSE;
 731 BOOL    log_timezone           = FALSE;
 732 unsigned int log_write_selector= L_default;
 733 uschar *login_sender_address   = NULL;
 734 int     lookup_open_max        = 25;
 735 uschar *lookup_value           = NULL;
 736
 737 macro_item  *macros            = NULL;
 738 uschar *mailstore_basename     = NULL;
 739 #ifdef WITH_CONTENT_SCAN
 740 uschar *malware_name           = NULL;  /* Virus Name */
 741 #endif
 742 int     max_username_length    = 0;
 743 int     message_age            = 0;
 744 uschar *message_body           = NULL;
 745 uschar *message_body_end       = NULL;
 746 int     message_body_size      = 0;
 747 int     message_body_visible   = 500;
 748 int     message_ended          = END_NOTSTARTED;
 749 uschar *message_headers        = NULL;
 750 uschar *message_id;
 751 uschar *message_id_domain      = NULL;
 752 uschar *message_id_text        = NULL;
 753 struct timeval message_id_tv   = { 0, 0 };
 754 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 755 uschar *message_id_external;
 756 int     message_linecount      = 0;
 757 BOOL    message_logs           = TRUE;
 758 int     message_size           = 0;
 759 uschar *message_size_limit     = US"50M";
 760 uschar  message_subdir[2]      = { 0, 0 };
 761 uschar *message_reference      = NULL;
 762
 763 /* MIME ACL expandables */
 764 #ifdef WITH_CONTENT_SCAN
 765 int     mime_anomaly_level     = 0;
 766 uschar *mime_anomaly_text      = NULL;
 767 uschar *mime_boundary          = NULL;
 768 uschar *mime_charset           = NULL;
 769 uschar *mime_content_description = NULL;
 770 uschar *mime_content_disposition = NULL;
 771 uschar *mime_content_id        = NULL;
 772 unsigned int mime_content_size = 0;
 773 uschar *mime_content_transfer_encoding = NULL;
 774 uschar *mime_content_type      = NULL;
 775 uschar *mime_decoded_filename  = NULL;
 776 uschar *mime_filename          = NULL;
 777 int     mime_is_multipart      = 0;
 778 int     mime_is_coverletter    = 0;
 779 int     mime_is_rfc822         = 0;
 780 int     mime_part_count        = -1;
 781 #endif
 782
 783 BOOL    mua_wrapper            = FALSE;
 784
 785 uid_t  *never_users            = NULL;
 786 #ifdef WITH_CONTENT_SCAN
 787 BOOL    no_mbox_unspool        = FALSE;
 788 #endif
 789 BOOL    no_multiline_responses = FALSE;
 790
 791 uid_t   original_euid;
 792 gid_t   originator_gid;
 793 uschar *originator_login       = NULL;
 794 uschar *originator_name        = NULL;
 795 uid_t   originator_uid;
 796 uschar *override_local_interfaces = NULL;
 797 uschar *override_pid_file_path = NULL;
 798
 799 BOOL    parse_allow_group      = FALSE;
 800 BOOL    parse_found_group      = FALSE;
 801 uschar *percent_hack_domains   = NULL;
 802 uschar *pid_file_path          = US PID_FILE_PATH
 803                            "\0<--------------Space to patch pid_file_path->";
 804 BOOL    pipelining_enable      = TRUE;
 805 uschar *pipelining_advertise_hosts = US"*";
 806 BOOL    preserve_message_logs  = FALSE;
 807 uschar *primary_hostname       = NULL;
 808 BOOL    print_topbitchars      = FALSE;
 809 uschar  process_info[PROCESS_INFO_SIZE];
 810 uschar *process_log_path       = NULL;
 811 BOOL    prod_requires_admin    = TRUE;
 812 uschar *prvscheck_address      = NULL;
 813 uschar *prvscheck_keynum       = NULL;
 814 uschar *prvscheck_result       = NULL;
 815
 816
 817 uschar *qualify_domain_recipient = NULL;
 818 uschar *qualify_domain_sender  = NULL;
 819 BOOL    queue_2stage           = FALSE;
 820 uschar *queue_domains          = NULL;
 821 int     queue_interval         = -1;
 822 BOOL    queue_list_requires_admin = TRUE;
 823 BOOL    queue_only             = FALSE;
 824 uschar *queue_only_file        = NULL;
 825 int     queue_only_load        = -1;
 826 BOOL    queue_only_override    = TRUE;
 827 BOOL    queue_only_policy      = FALSE;
 828 BOOL    queue_run_first_delivery = FALSE;
 829 BOOL    queue_run_force        = FALSE;
 830 BOOL    queue_run_in_order     = FALSE;
 831 BOOL    queue_run_local        = FALSE;
 832 int     queue_run_max          = 5;
 833 pid_t   queue_run_pid          = (pid_t)0;
 834 int     queue_run_pipe         = -1;
 835 BOOL    queue_running          = FALSE;
 836 BOOL    queue_smtp             = FALSE;
 837 uschar *queue_smtp_domains     = NULL;
 838
 839 unsigned int random_seed       = 0;
 840 tree_node *ratelimiters_cmd    = NULL;
 841 tree_node *ratelimiters_conn   = NULL;
 842 tree_node *ratelimiters_mail   = NULL;
 843 uschar *raw_active_hostname    = NULL;
 844 uschar *raw_sender             = NULL;
 845 uschar **raw_recipients        = NULL;
 846 int     raw_recipients_count   = 0;
 847
 848 int     rcpt_count             = 0;
 849 int     rcpt_fail_count        = 0;
 850 int     rcpt_defer_count       = 0;
 851 gid_t   real_gid;
 852 uid_t   real_uid;
 853 BOOL    really_exim            = TRUE;
 854 BOOL    receive_call_bombout   = FALSE;
 855 int     receive_linecount      = 0;
 856 int     receive_messagecount   = 0;
 857 int     receive_timeout        = 0;
 858 int     received_count         = 0;
 859 uschar *received_for           = NULL;
 860
 861 /*  This is the default text for Received headers generated by Exim. The
 862 date  will be automatically added on the end. */
 863
 864 uschar *received_header_text   = US
 865      "Received: "
 866      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 867      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 868      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 869      "by $primary_hostname "
 870      "${if def:received_protocol {with $received_protocol}} "
 871      #ifdef SUPPORT_TLS
 872      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 873      #endif
 874      "(Exim $version_number)\n\t"
 875      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 876      "id $message_exim_id"
 877      "${if def:received_for {\n\tfor $received_for}}"
 878      "\0<---------------Space to patch received_header_text->";
 879
 880 int     received_headers_max   = 30;
 881 uschar *received_protocol      = NULL;
 882 int     received_time          = 0;
 883 uschar *recipient_data         = NULL;
 884 uschar *recipient_unqualified_hosts = NULL;
 885 uschar *recipient_verify_failure = NULL;
 886 int     recipients_count       = 0;
 887 BOOL    recipients_discarded   = FALSE;
 888 recipient_item  *recipients_list = NULL;
 889 int     recipients_list_max    = 0;
 890 int     recipients_max         = 0;
 891 BOOL    recipients_max_reject  = FALSE;
 892 const pcre *regex_AUTH         = NULL;
 893 const pcre *regex_check_dns_names = NULL;
 894 const pcre *regex_From         = NULL;
 895 const pcre *regex_IGNOREQUOTA  = NULL;
 896 const pcre *regex_PIPELINING   = NULL;
 897 const pcre *regex_SIZE         = NULL;
 898 const pcre *regex_smtp_code    = NULL;
 899 const pcre *regex_ismsgid      = NULL;
 900 #ifdef WITH_CONTENT_SCAN
 901 uschar *regex_match_string     = NULL;
 902 #endif
 903 int     remote_delivery_count  = 0;
 904 int     remote_max_parallel    = 2;
 905 uschar *remote_sort_domains    = NULL;
 906 int     retry_data_expire      = 7*24*60*60;
 907 int     retry_interval_max     = 24*60*60;
 908 int     retry_maximum_timeout  = 0;        /* set from retry config */
 909 retry_config  *retries         = NULL;
 910 uschar *return_path            = NULL;
 911 BOOL    return_path_remove     = TRUE;
 912 int     rewrite_existflags     = 0;
 913 uschar *rfc1413_hosts          = US"*";
 914 int     rfc1413_query_timeout  = 5;
 915 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 916 uid_t   root_uid               = ROOT_UID;
 917
 918 router_instance  *routers  = NULL;
 919 router_instance  router_defaults = {
 920     NULL,                      /* chain pointer */
 921     NULL,                      /* name */
 922     NULL,                      /* info */
 923     NULL,                      /* private options block pointer */
 924     NULL,                      /* driver name */
 925
 926     NULL,                      /* address_data */
 927 #ifdef EXPERIMENTAL_BRIGHTMAIL
 928     NULL,                      /* bmi_rule */
 929 #endif
 930     NULL,                      /* cannot_route_message */
 931     NULL,                      /* condition */
 932     NULL,                      /* current_directory */
 933     NULL,                      /* debug_string */
 934     NULL,                      /* domains */
 935     NULL,                      /* errors_to */
 936     NULL,                      /* expand_gid */
 937     NULL,                      /* expand_uid */
 938     NULL,                      /* expand_more */
 939     NULL,                      /* expand_unseen */
 940     NULL,                      /* extra_headers */
 941     NULL,                      /* fallback_hosts */
 942     NULL,                      /* home_directory */
 943     NULL,                      /* ignore_target_hosts */
 944     NULL,                      /* local_parts */
 945     NULL,                      /* pass_router_name */
 946     NULL,                      /* prefix */
 947     NULL,                      /* redirect_router_name */
 948     NULL,                      /* remove_headers */
 949     NULL,                      /* require_files */
 950     NULL,                      /* router_home_directory */
 951     US"freeze",                /* self */
 952     NULL,                      /* senders */
 953     NULL,                      /* suffix */
 954     NULL,                      /* translate_ip_address */
 955     NULL,                      /* transport_name */
 956
 957     TRUE,                      /* address_test */
 958 #ifdef EXPERIMENTAL_BRIGHTMAIL
 959     FALSE,                     /* bmi_deliver_alternate */
 960     FALSE,                     /* bmi_deliver_default */
 961     FALSE,                     /* bmi_dont_deliver */
 962 #endif
 963     TRUE,                      /* expn */
 964     FALSE,                     /* caseful_local_part */
 965     FALSE,                     /* check_local_user */
 966     FALSE,                     /* disable_logging */
 967     FALSE,                     /* fail_verify_recipient */
 968     FALSE,                     /* fail_verify_sender */
 969     FALSE,                     /* gid_set */
 970     FALSE,                     /* initgroups */
 971     TRUE_UNSET,                /* log_as_local */
 972     TRUE,                      /* more */
 973     FALSE,                     /* pass_on_timeout */
 974     FALSE,                     /* prefix_optional */
 975     TRUE,                      /* repeat_use */
 976     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 977     FALSE,                     /* same_domain_copy_routing */
 978     FALSE,                     /* self_rewrite */
 979     FALSE,                     /* suffix_optional */
 980     FALSE,                     /* verify_only */
 981     TRUE,                      /* verify_recipient */
 982     TRUE,                      /* verify_sender */
 983     FALSE,                     /* uid_set */
 984     FALSE,                     /* unseen */
 985
 986     self_freeze,               /* self_code */
 987     (uid_t)(-1),               /* uid */
 988     (gid_t)(-1),               /* gid */
 989
 990     NULL,                      /* fallback_hostlist */
 991     NULL,                      /* transport instance */
 992     NULL,                      /* pass_router */
 993     NULL                       /* redirect_router */
 994 };
 995
 996 ip_address_item *running_interfaces = NULL;
 997 BOOL    running_in_test_harness = FALSE;
 998
 999 /* This is a weird one. The following string gets patched in the binary by the
1000 script that sets up a copy of Exim for running in the test harness. It seems
1001 that compilers are now clever, and share constant strings if they can.
1002 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1003 make use of the end of this string in order to save space. So the patching then
1004 wrecks this. We default this optimization by adding some additional characters
1005 onto the end of the string. */
1006
1007 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1008
1009 int     runrc                  = 0;
1010
1011 uschar *search_error_message   = NULL;
1012 BOOL    search_find_defer      = FALSE;
1013 uschar *self_hostname          = NULL;
1014 uschar *sender_address         = NULL;
1015 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1016 uschar *sender_address_data    = NULL;
1017 BOOL    sender_address_forced  = FALSE;
1018 uschar *sender_address_unrewritten = NULL;
1019 uschar *sender_data            = NULL;
1020 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1021 uschar *sender_fullhost        = NULL;
1022 uschar *sender_helo_name       = NULL;
1023 uschar **sender_host_aliases   = &no_aliases;
1024 uschar *sender_host_address    = NULL;
1025 uschar *sender_host_authenticated = NULL;
1026 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1027 uschar *sender_host_name       = NULL;
1028 int     sender_host_port       = 0;
1029 BOOL    sender_host_notsocket  = FALSE;
1030 BOOL    sender_host_unknown    = FALSE;
1031 uschar *sender_ident           = NULL;
1032 BOOL    sender_local           = FALSE;
1033 BOOL    sender_name_forced     = FALSE;
1034 uschar *sender_rate            = NULL;
1035 uschar *sender_rate_limit      = NULL;
1036 uschar *sender_rate_period     = NULL;
1037 uschar *sender_rcvhost         = NULL;
1038 BOOL    sender_set_untrusted   = FALSE;
1039 uschar *sender_unqualified_hosts = NULL;
1040 uschar *sender_verify_failure = NULL;
1041 address_item *sender_verified_list  = NULL;
1042 address_item *sender_verified_failed = NULL;
1043 int     sender_verified_rc     = -1;
1044 BOOL    sender_verified_responded = FALSE;
1045 uschar *sending_ip_address     = NULL;
1046 int     sending_port           = -1;
1047 volatile  BOOL sigalrm_seen    = FALSE;
1048 uschar **sighup_argv           = NULL;
1049 int     smtp_accept_count      = 0;
1050 BOOL    smtp_accept_keepalive  = TRUE;
1051 int     smtp_accept_max        = 20;
1052 int     smtp_accept_max_nonmail= 10;
1053 uschar *smtp_accept_max_nonmail_hosts = US"*";
1054 int     smtp_accept_max_per_connection = 1000;
1055 uschar *smtp_accept_max_per_host = NULL;
1056 int     smtp_accept_queue      = 0;
1057 int     smtp_accept_queue_per_connection = 10;
1058 int     smtp_accept_reserve    = 0;
1059 uschar *smtp_active_hostname   = NULL;
1060 BOOL    smtp_authenticated     = FALSE;
1061 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1062                              "Exim $version_number $tod_full"
1063                              "\0<---------------Space to patch smtp_banner->";
1064 BOOL    smtp_batched_input     = FALSE;
1065 BOOL    smtp_check_spool_space = TRUE;
1066 int     smtp_ch_index          = 0;
1067 uschar *smtp_cmd_argument      = NULL;
1068 uschar *smtp_cmd_buffer        = NULL;
1069 time_t  smtp_connection_start  = 0;
1070 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1071 int     smtp_connect_backlog   = 20;
1072 double  smtp_delay_mail        = 0.0;
1073 double  smtp_delay_rcpt        = 0.0;
1074 BOOL    smtp_enforce_sync      = TRUE;
1075 FILE   *smtp_in                = NULL;
1076 BOOL    smtp_input             = FALSE;
1077 int     smtp_load_reserve      = -1;
1078 int     smtp_mailcmd_count     = 0;
1079 FILE   *smtp_out               = NULL;
1080 uschar *smtp_etrn_command      = NULL;
1081 BOOL    smtp_etrn_serialize    = TRUE;
1082 int     smtp_max_synprot_errors= 3;
1083 int     smtp_max_unknown_commands = 3;
1084 uschar *smtp_ratelimit_hosts   = NULL;
1085 uschar *smtp_ratelimit_mail    = NULL;
1086 uschar *smtp_ratelimit_rcpt    = NULL;
1087 uschar *smtp_read_error        = US"";
1088 int     smtp_receive_timeout   = 5*60;
1089 uschar *smtp_reserve_hosts     = NULL;
1090 BOOL    smtp_return_error_details = FALSE;
1091 int     smtp_rlm_base          = 0;
1092 double  smtp_rlm_factor        = 0.0;
1093 int     smtp_rlm_limit         = 0;
1094 int     smtp_rlm_threshold     = INT_MAX;
1095 int     smtp_rlr_base          = 0;
1096 double  smtp_rlr_factor        = 0.0;
1097 int     smtp_rlr_limit         = 0;
1098 int     smtp_rlr_threshold     = INT_MAX;
1099 BOOL    smtp_use_pipelining    = FALSE;
1100 BOOL    smtp_use_size          = FALSE;
1101
1102 #ifdef WITH_CONTENT_SCAN
1103 uschar *spamd_address          = US"127.0.0.1 783";
1104 uschar *spam_bar               = NULL;
1105 uschar *spam_report            = NULL;
1106 uschar *spam_score             = NULL;
1107 uschar *spam_score_int         = NULL;
1108 #endif
1109 #ifdef EXPERIMENTAL_SPF
1110 uschar *spf_header_comment     = NULL;
1111 uschar *spf_received           = NULL;
1112 uschar *spf_result             = NULL;
1113 uschar *spf_smtp_comment       = NULL;
1114 #endif
1115
1116 BOOL    split_spool_directory  = FALSE;
1117 uschar *spool_directory        = US SPOOL_DIRECTORY
1118                            "\0<--------------Space to patch spool_directory->";
1119 #ifdef EXPERIMENTAL_SRS
1120 uschar *srs_config             = NULL;
1121 uschar *srs_db_address         = NULL;
1122 uschar *srs_db_key             = NULL;
1123 int     srs_hashlength         = 6;
1124 int     srs_hashmin            = -1;
1125 int     srs_maxage             = 31;
1126 uschar *srs_orig_recipient     = NULL;
1127 uschar *srs_orig_sender        = NULL;
1128 uschar *srs_recipient          = NULL;
1129 uschar *srs_secrets            = NULL;
1130 uschar *srs_status             = NULL;
1131 BOOL    srs_usehash            = TRUE;
1132 BOOL    srs_usetimestamp       = TRUE;
1133 #endif
1134 BOOL    strict_acl_vars        = FALSE;
1135 int     string_datestamp_offset= -1;
1136 BOOL    strip_excess_angle_brackets = FALSE;
1137 BOOL    strip_trailing_dot     = FALSE;
1138 uschar *submission_domain      = NULL;
1139 BOOL    submission_mode        = FALSE;
1140 uschar *submission_name        = NULL;
1141 BOOL    suppress_local_fixups  = FALSE;
1142 BOOL    synchronous_delivery   = FALSE;
1143 BOOL    syslog_duplication     = TRUE;
1144 int     syslog_facility        = LOG_MAIL;
1145 uschar *syslog_processname     = US"exim";
1146 BOOL    syslog_timestamp       = TRUE;
1147 uschar *system_filter          = NULL;
1148
1149 uschar *system_filter_directory_transport = NULL;
1150 uschar *system_filter_file_transport = NULL;
1151 uschar *system_filter_pipe_transport = NULL;
1152 uschar *system_filter_reply_transport = NULL;
1153
1154 gid_t   system_filter_gid      = 0;
1155 BOOL    system_filter_gid_set  = FALSE;
1156 uid_t   system_filter_uid      = 0;
1157 BOOL    system_filter_uid_set  = FALSE;
1158 BOOL    system_filtering       = FALSE;
1159
1160 BOOL    tcp_nodelay            = TRUE;
1161 int     thismessage_size_limit = 0;
1162 int     timeout_frozen_after   = 0;
1163 BOOL    timestamps_utc         = FALSE;
1164
1165 transport_instance  *transports = NULL;
1166
1167 transport_instance  transport_defaults = {
1168     NULL,                     /* chain pointer */
1169     NULL,                     /* name */
1170     NULL,                     /* info */
1171     NULL,                     /* private options block pointer */
1172     NULL,                     /* driver name */
1173     NULL,                     /* setup entry point */
1174     1,                        /* batch_max */
1175     NULL,                     /* batch_id */
1176     NULL,                     /* home_dir */
1177     NULL,                     /* current_dir */
1178     TRUE,                     /* multi-domain */
1179     FALSE,                    /* overrides_hosts */
1180     100,                      /* max_addresses */
1181     500,                      /* connection_max_messages */
1182     FALSE,                    /* deliver_as_creator */
1183     FALSE,                    /* disable_logging */
1184     FALSE,                    /* initgroups */
1185     FALSE,                    /* uid_set */
1186     FALSE,                    /* gid_set */
1187     (uid_t)(-1),              /* uid */
1188     (gid_t)(-1),              /* gid */
1189     NULL,                     /* expand_uid */
1190     NULL,                     /* expand_gid */
1191     NULL,                     /* warn_message */
1192     NULL,                     /* shadow */
1193     NULL,                     /* shadow_condition */
1194     NULL,                     /* filter_command */
1195     NULL,                     /* add_headers */
1196     NULL,                     /* remove_headers */
1197     NULL,                     /* return_path */
1198     NULL,                     /* debug_string */
1199     NULL,                     /* message_size_limit */
1200     NULL,                     /* headers_rewrite */
1201     NULL,                     /* rewrite_rules */
1202     0,                        /* rewrite_existflags */
1203     300,                      /* filter_timeout */
1204     FALSE,                    /* body_only */
1205     FALSE,                    /* delivery_date_add */
1206     FALSE,                    /* envelope_to_add */
1207     FALSE,                    /* headers_only */
1208     FALSE,                    /* rcpt_include_affixes */
1209     FALSE,                    /* return_path_add */
1210     FALSE,                    /* return_output */
1211     FALSE,                    /* return_fail_output */
1212     FALSE,                    /* log_output */
1213     FALSE,                    /* log_fail_output */
1214     FALSE,                    /* log_defer_output */
1215     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1216                                  1 nor 0 so can detect unset */
1217 };
1218
1219 int     transport_count;
1220 uschar **transport_filter_argv  = NULL;
1221 int     transport_filter_timeout;
1222 BOOL    transport_filter_timed_out = FALSE;
1223 int     transport_write_timeout= 0;
1224
1225 tree_node  *tree_dns_fails     = NULL;
1226 tree_node  *tree_duplicates    = NULL;
1227 tree_node  *tree_nonrecipients = NULL;
1228 tree_node  *tree_unusable      = NULL;
1229
1230 BOOL    trusted_caller         = FALSE;
1231 gid_t  *trusted_groups         = NULL;
1232 uid_t  *trusted_users          = NULL;
1233 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1234
1235 uschar *unknown_login          = NULL;
1236 uschar *unknown_username       = NULL;
1237 uschar *untrusted_set_sender   = NULL;
1238
1239 /*  A regex for matching a "From_" line in an incoming message, in the form
1240
1241     From ph10 Fri Jan  5 12:35 GMT 1996
1242
1243 which  the "mail" commands send to the MTA (undocumented, of course), or in
1244 the  form
1245
1246     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1247
1248 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1249 Because  of variations in time formats, just match up to the minutes. That
1250 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1251 so  just require one digit for hours and minutes. The weekday is also absent
1252 in  some forms. */
1253
1254 uschar *uucp_from_pattern      = US
1255    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1256    "(?:"                                          /* Non-extracting bracket */
1257    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1258    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1259    ")"                                            /* End alternation */
1260    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1261
1262 uschar *uucp_from_sender       = US"$1";
1263
1264 uschar *warn_message_file      = NULL;
1265 uschar *warnmsg_delay          = NULL;
1266 uschar *warnmsg_recipients     = NULL;
1267 BOOL    write_rejectlog        = TRUE;
1268
1269 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1270 uschar *version_date           = US"?";
1271 uschar *version_cnumber        = US"????";
1272 uschar *version_string         = US"?";
1273
1274 int     warning_count          = 0;
1275
1276 /*  End of globals.c */