src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.78 2007/08/23 11:01:49 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   { "client_condition", opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, client_condition)) },
  37   { "driver",        opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, driver_name)) },
  39   { "public_name",   opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, public_name)) },
  41   { "server_advertise_condition", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, advertise_condition))},
  43   { "server_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, server_condition)) },
  45   { "server_debug_print", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, server_debug_string)) },
  47   { "server_mail_auth_condition", opt_stringptr | opt_public,
  48                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  49   { "server_set_id", opt_stringptr | opt_public,
  50                  (void *)(offsetof(auth_instance, set_id)) }
  51 };
  52
  53 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  54
  55 /* An empty host aliases list. */
  56
  57 uschar *no_aliases             = NULL;
  58
  59
  60 /* For comments on these variables, see globals.h. I'm too idle to
  61 duplicate them here... */
  62
  63 #ifdef EXIM_PERL
  64 uschar *opt_perl_startup       = NULL;
  65 BOOL    opt_perl_at_start      = FALSE;
  66 BOOL    opt_perl_started       = FALSE;
  67 #endif
  68
  69 #ifdef EXPAND_DLFUNC
  70 tree_node *dlobj_anchor        = NULL;
  71 #endif
  72
  73 #ifdef LOOKUP_IBASE
  74 uschar *ibase_servers          = NULL;
  75 #endif
  76
  77 #ifdef LOOKUP_LDAP
  78 uschar *eldap_default_servers  = NULL;
  79 int     eldap_version          = -1;
  80 #endif
  81
  82 #ifdef LOOKUP_MYSQL
  83 uschar *mysql_servers          = NULL;
  84 #endif
  85
  86 #ifdef LOOKUP_ORACLE
  87 uschar *oracle_servers         = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_PGSQL
  91 uschar *pgsql_servers          = NULL;
  92 #endif
  93
  94 #ifdef LOOKUP_SQLITE
  95 int     sqlite_lock_timeout    = 5;
  96 #endif
  97
  98 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  99 BOOL    move_frozen_messages   = FALSE;
 100 #endif
 101
 102 /* These variables are outside the #ifdef because it keeps the code less
 103 cluttered in several places (e.g. during logging) if we can always refer to
 104 them. Also, the tls_ variables are now always visible. */
 105
 106 BOOL    tls_active             = -1;
 107 BOOL    tls_certificate_verified = FALSE;
 108 uschar *tls_cipher             = NULL;
 109 BOOL    tls_on_connect         = FALSE;
 110 uschar *tls_on_connect_ports   = NULL;
 111 uschar *tls_peerdn             = NULL;
 112
 113 #ifdef SUPPORT_TLS
 114 uschar *gnutls_require_mac     = NULL;
 115 uschar *gnutls_require_kx      = NULL;
 116 uschar *gnutls_require_proto   = NULL;
 117 const pcre *regex_STARTTLS     = NULL;
 118 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 119 uschar *tls_certificate        = NULL;
 120 uschar *tls_crl                = NULL;
 121 uschar *tls_dhparam            = NULL;
 122 BOOL    tls_offered            = FALSE;
 123 uschar *tls_privatekey         = NULL;
 124 BOOL    tls_remember_esmtp     = FALSE;
 125 uschar *tls_require_ciphers    = NULL;
 126 uschar *tls_try_verify_hosts   = NULL;
 127 uschar *tls_verify_certificates= NULL;
 128 uschar *tls_verify_hosts       = NULL;
 129 #endif
 130
 131
 132 /* Input-reading functions for messages, so we can use special ones for
 133 incoming TCP/IP. The defaults use stdin. We never need these for any
 134 stand-alone tests. */
 135
 136 #ifndef STAND_ALONE
 137 int (*receive_getc)(void)      = stdin_getc;
 138 int (*receive_ungetc)(int)     = stdin_ungetc;
 139 int (*receive_feof)(void)      = stdin_feof;
 140 int (*receive_ferror)(void)    = stdin_ferror;
 141 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 142 #endif
 143
 144
 145 /* List of per-address expansion variables for clearing and saving/restoring
 146 when verifying one address while routing/verifying another. We have to have
 147 the size explicit, because it is referenced from more than one module. */
 148
 149 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 150   &deliver_address_data,
 151   &deliver_domain,
 152   &deliver_domain_data,
 153   &deliver_domain_orig,
 154   &deliver_domain_parent,
 155   &deliver_localpart,
 156   &deliver_localpart_data,
 157   &deliver_localpart_orig,
 158   &deliver_localpart_parent,
 159   &deliver_localpart_prefix,
 160   &deliver_localpart_suffix,
 161   (uschar **)(&deliver_recipients),
 162   &deliver_host,
 163   &deliver_home,
 164   &address_file,
 165   &address_pipe,
 166   &self_hostname,
 167   NULL };
 168
 169 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 170
 171 /* General global variables */
 172
 173 header_line *acl_added_headers = NULL;
 174 tree_node *acl_anchor          = NULL;
 175
 176 uschar *acl_not_smtp           = NULL;
 177 #ifdef WITH_CONTENT_SCAN
 178 uschar *acl_not_smtp_mime      = NULL;
 179 #endif
 180 uschar *acl_not_smtp_start     = NULL;
 181
 182 uschar *acl_smtp_auth          = NULL;
 183 uschar *acl_smtp_connect       = NULL;
 184 uschar *acl_smtp_data          = NULL;
 185 uschar *acl_smtp_etrn          = NULL;
 186 uschar *acl_smtp_expn          = NULL;
 187 uschar *acl_smtp_helo          = NULL;
 188 uschar *acl_smtp_mail          = NULL;
 189 uschar *acl_smtp_mailauth      = NULL;
 190 #ifdef WITH_CONTENT_SCAN
 191 uschar *acl_smtp_mime          = NULL;
 192 #endif
 193 uschar *acl_smtp_notquit       = NULL;
 194 uschar *acl_smtp_predata       = NULL;
 195 uschar *acl_smtp_quit          = NULL;
 196 uschar *acl_smtp_rcpt          = NULL;
 197 uschar *acl_smtp_starttls      = NULL;
 198 uschar *acl_smtp_vrfy          = NULL;
 199
 200 BOOL    acl_temp_details       = FALSE;
 201 tree_node *acl_var_c           = NULL;
 202 tree_node *acl_var_m           = NULL;
 203 uschar *acl_verify_message     = NULL;
 204 string_item *acl_warn_logged   = NULL;
 205
 206 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 207 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 208
 209 uschar *acl_wherenames[]       = { US"RCPT",
 210                                    US"MAIL",
 211                                    US"PREDATA",
 212                                    US"MIME",
 213                                    US"DATA",
 214                                    US"non-SMTP",
 215                                    US"AUTH",
 216                                    US"connection",
 217                                    US"ETRN",
 218                                    US"EXPN",
 219                                    US"EHLO or HELO",
 220                                    US"MAILAUTH",
 221                                    US"non-SMTP-start",
 222                                    US"NOTQUIT",
 223                                    US"QUIT",
 224                                    US"STARTTLS",
 225                                    US"VRFY"
 226                                  };
 227
 228 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 229                                    US"550",     /* MAIL */
 230                                    US"550",     /* PREDATA */
 231                                    US"550",     /* MIME */
 232                                    US"550",     /* DATA */
 233                                    US"0",       /* not SMTP; not relevant */
 234                                    US"503",     /* AUTH */
 235                                    US"550",     /* connect */
 236                                    US"458",     /* ETRN */
 237                                    US"550",     /* EXPN */
 238                                    US"550",     /* HELO/EHLO */
 239                                    US"0",       /* MAILAUTH; not relevant */
 240                                    US"0",       /* not SMTP; not relevant */
 241                                    US"0",       /* NOTQUIT; not relevant */
 242                                    US"0",       /* QUIT; not relevant */
 243                                    US"550",     /* STARTTLS */
 244                                    US"252"      /* VRFY */
 245                                  };
 246
 247 BOOL    active_local_from_check = FALSE;
 248 BOOL    active_local_sender_retain = FALSE;
 249 BOOL    accept_8bitmime        = FALSE;
 250 address_item  *addr_duplicate  = NULL;
 251
 252 address_item address_defaults = {
 253   NULL,                 /* next */
 254   NULL,                 /* parent */
 255   NULL,                 /* first */
 256   NULL,                 /* dupof */
 257   NULL,                 /* start_router */
 258   NULL,                 /* router */
 259   NULL,                 /* transport */
 260   NULL,                 /* host_list */
 261   NULL,                 /* host_used */
 262   NULL,                 /* fallback_hosts */
 263   NULL,                 /* reply */
 264   NULL,                 /* retries */
 265   NULL,                 /* address */
 266   NULL,                 /* unique */
 267   NULL,                 /* cc_local_part */
 268   NULL,                 /* lc_local_part */
 269   NULL,                 /* local_part */
 270   NULL,                 /* prefix */
 271   NULL,                 /* suffix */
 272   NULL,                 /* domain */
 273   NULL,                 /* address_retry_key */
 274   NULL,                 /* domain_retry_key */
 275   NULL,                 /* current_dir */
 276   NULL,                 /* home_dir */
 277   NULL,                 /* message */
 278   NULL,                 /* user_message */
 279   NULL,                 /* onetime_parent */
 280   NULL,                 /* pipe_expandn */
 281   NULL,                 /* return_filename */
 282   NULL,                 /* self_hostname */
 283   NULL,                 /* shadow_message */
 284   #ifdef SUPPORT_TLS
 285   NULL,                 /* cipher */
 286   NULL,                 /* peerdn */
 287   #endif
 288   (uid_t)(-1),          /* uid */
 289   (gid_t)(-1),          /* gid */
 290   0,                    /* flags */
 291   { 0 },                /* domain_cache - any larger array should be zeroed */
 292   { 0 },                /* localpart_cache - ditto */
 293   -1,                   /* mode */
 294   0,                    /* more_errno */
 295   ERRNO_UNKNOWNERROR,   /* basic_errno */
 296   0,                    /* child_count */
 297   -1,                   /* return_file */
 298   SPECIAL_NONE,         /* special_action */
 299   DEFER,                /* transport_return */
 300   {                     /* fields that are propagated to children */
 301     NULL,               /* address_data */
 302     NULL,               /* domain_data */
 303     NULL,               /* localpart_data */
 304     NULL,               /* errors_address */
 305     NULL,               /* extra_headers */
 306     NULL,               /* remove_headers */
 307 #ifdef EXPERIMENTAL_SRS
 308     NULL,               /* srs_sender */
 309 #endif
 310   }
 311 };
 312
 313 uschar *address_file           = NULL;
 314 uschar *address_pipe           = NULL;
 315 BOOL    address_test_mode      = FALSE;
 316 tree_node *addresslist_anchor  = NULL;
 317 int     addresslist_count      = 0;
 318 gid_t  *admin_groups           = NULL;
 319 BOOL    admin_user             = FALSE;
 320 BOOL    allow_auth_unadvertised= FALSE;
 321 BOOL    allow_domain_literals  = FALSE;
 322 BOOL    allow_mx_to_ip         = FALSE;
 323 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 324 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 325 BOOL    allow_utf8_domains     = FALSE;
 326 uschar *authenticated_id       = NULL;
 327 uschar *authenticated_sender   = NULL;
 328 BOOL    authentication_failed  = FALSE;
 329 auth_instance  *auths          = NULL;
 330 uschar *auth_advertise_hosts   = US"*";
 331 auth_instance auth_defaults    = {
 332     NULL,                      /* chain pointer */
 333     NULL,                      /* name */
 334     NULL,                      /* info */
 335     NULL,                      /* private options block pointer */
 336     NULL,                      /* driver_name */
 337     NULL,                      /* advertise_condition */
 338     NULL,                      /* client_condition */
 339     NULL,                      /* public_name */
 340     NULL,                      /* set_id */
 341     NULL,                      /* server_mail_auth_condition */
 342     NULL,                      /* server_debug_string */
 343     NULL,                      /* server_condition */
 344     FALSE,                     /* client */
 345     FALSE,                     /* server */
 346     FALSE                      /* advertised */
 347 };
 348
 349 uschar *auth_defer_msg         = US"reason not recorded";
 350 uschar *auth_defer_user_msg    = US"";
 351 uschar *auth_vars[AUTH_VARS];
 352 int     auto_thaw              = 0;
 353 #ifdef WITH_CONTENT_SCAN
 354 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 355 #endif
 356
 357 BOOL    background_daemon      = TRUE;
 358
 359 #if BASE_62 == 62
 360 uschar *base62_chars=
 361     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 362 #else
 363 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 364 #endif
 365
 366 uschar *bi_command             = NULL;
 367 uschar *big_buffer             = NULL;
 368 int     big_buffer_size        = BIG_BUFFER_SIZE;
 369 #ifdef EXPERIMENTAL_BRIGHTMAIL
 370 uschar *bmi_alt_location       = NULL;
 371 uschar *bmi_base64_tracker_verdict = NULL;
 372 uschar *bmi_base64_verdict     = NULL;
 373 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 374 int     bmi_deliver            = 1;
 375 int     bmi_run                = 0;
 376 uschar *bmi_verdicts           = NULL;
 377 #endif
 378 int     body_linecount         = 0;
 379 int     body_zerocount         = 0;
 380 uschar *bounce_message_file    = NULL;
 381 uschar *bounce_message_text    = NULL;
 382 uschar *bounce_recipient       = NULL;
 383 BOOL    bounce_return_body     = TRUE;
 384 BOOL    bounce_return_message  = TRUE;
 385 int     bounce_return_size_limit = 100*1024;
 386 uschar *bounce_sender_authentication = NULL;
 387 int     bsmtp_transaction_linecount = 0;
 388
 389 int     callout_cache_domain_positive_expire = 7*24*60*60;
 390 int     callout_cache_domain_negative_expire = 3*60*60;
 391 int     callout_cache_positive_expire = 24*60*60;
 392 int     callout_cache_negative_expire = 2*60*60;
 393 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 394 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9/-]*[^\\W_])?)+$";
 395 int     check_log_inodes       = 0;
 396 int     check_log_space        = 0;
 397 BOOL    check_rfc2047_length   = TRUE;
 398 int     check_spool_inodes     = 0;
 399 int     check_spool_space      = 0;
 400 int     clmacro_count          = 0;
 401 uschar *clmacros[MAX_CLMACROS];
 402 BOOL    config_changed         = FALSE;
 403 FILE   *config_file            = NULL;
 404 uschar *config_filename        = NULL;
 405 int     config_lineno          = 0;
 406 #ifdef CONFIGURE_GROUP
 407 gid_t   config_gid             = CONFIGURE_GROUP;
 408 #endif
 409 uschar *config_main_filelist   = US CONFIGURE_FILE
 410                          "\0<-----------Space to patch configure_filename->";
 411 uschar *config_main_filename   = NULL;
 412
 413 #ifdef CONFIGURE_OWNER
 414 uid_t   config_uid             = CONFIGURE_OWNER;
 415 #endif
 416
 417 int     connection_max_messages= -1;
 418 uschar *continue_hostname      = NULL;
 419 uschar *continue_host_address  = NULL;
 420 BOOL    continue_more          = FALSE;
 421 int     continue_sequence      = 1;
 422 uschar *continue_transport     = NULL;
 423
 424 uschar *csa_status             = NULL;
 425
 426 BOOL    daemon_listen          = FALSE;
 427 uschar *daemon_smtp_port       = US"smtp";
 428 int     daemon_startup_retries = 9;
 429 int     daemon_startup_sleep   = 30;
 430 BOOL    debug_daemon           = FALSE;
 431 int     debug_fd               = -1;
 432 FILE   *debug_file             = NULL;
 433 bit_table debug_options[]      = {
 434   { US"acl",            D_acl },
 435   { US"all",            D_all },
 436   { US"auth",           D_auth },
 437   { US"deliver",        D_deliver },
 438   { US"dns",            D_dns },
 439   { US"dnsbl",          D_dnsbl },
 440   { US"exec",           D_exec },
 441   { US"expand",         D_expand },
 442   { US"filter",         D_filter },
 443   { US"hints_lookup",   D_hints_lookup },
 444   { US"host_lookup",    D_host_lookup },
 445   { US"ident",          D_ident },
 446   { US"interface",      D_interface },
 447   { US"lists",          D_lists },
 448   { US"load",           D_load },
 449   { US"local_scan",     D_local_scan },
 450   { US"lookup",         D_lookup },
 451   { US"memory",         D_memory },
 452   { US"pid",            D_pid },
 453   { US"process_info",   D_process_info },
 454   { US"queue_run",      D_queue_run },
 455   { US"receive",        D_receive },
 456   { US"resolver",       D_resolver },
 457   { US"retry",          D_retry },
 458   { US"rewrite",        D_rewrite },
 459   { US"route",          D_route },
 460   { US"timestamp",      D_timestamp },
 461   { US"tls",            D_tls },
 462   { US"transport",      D_transport },
 463   { US"uid",            D_uid },
 464   { US"verify",         D_verify }
 465 };
 466 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 467 unsigned int debug_selector    = 0;
 468 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 469 uschar *delay_warning_condition=
 470   US"${if or {"
 471             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 472             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 473             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 474             "} {no}{yes}}";
 475 BOOL    delivery_date_remove   = TRUE;
 476 uschar *deliver_address_data   = NULL;
 477 int     deliver_datafile       = -1;
 478 uschar *deliver_domain         = NULL;
 479 uschar *deliver_domain_data    = NULL;
 480 uschar *deliver_domain_orig    = NULL;
 481 uschar *deliver_domain_parent  = NULL;
 482 BOOL    deliver_drop_privilege = FALSE;
 483 BOOL    deliver_firsttime      = FALSE;
 484 BOOL    deliver_force          = FALSE;
 485 BOOL    deliver_freeze         = FALSE;
 486 int     deliver_frozen_at      = 0;
 487 uschar *deliver_home           = NULL;
 488 uschar *deliver_host           = NULL;
 489 uschar *deliver_host_address   = NULL;
 490 uschar *deliver_in_buffer      = NULL;
 491 ino_t   deliver_inode          = 0;
 492 uschar *deliver_localpart      = NULL;
 493 uschar *deliver_localpart_data = NULL;
 494 uschar *deliver_localpart_orig = NULL;
 495 uschar *deliver_localpart_parent = NULL;
 496 uschar *deliver_localpart_prefix = NULL;
 497 uschar *deliver_localpart_suffix = NULL;
 498 BOOL    deliver_force_thaw     = FALSE;
 499 BOOL    deliver_manual_thaw    = FALSE;
 500 uschar *deliver_out_buffer     = NULL;
 501 int     deliver_queue_load_max = -1;
 502 address_item  *deliver_recipients = NULL;
 503 uschar *deliver_selectstring   = NULL;
 504 BOOL    deliver_selectstring_regex = FALSE;
 505 uschar *deliver_selectstring_sender = NULL;
 506 BOOL    deliver_selectstring_sender_regex = FALSE;
 507 #ifdef WITH_OLD_DEMIME
 508 int     demime_errorlevel      = 0;
 509 int     demime_ok              = 0;
 510 uschar *demime_reason          = NULL;
 511 #endif
 512 BOOL    disable_callout_flush  = FALSE;
 513 BOOL    disable_delay_flush    = FALSE;
 514 #ifdef ENABLE_DISABLE_FSYNC
 515 BOOL    disable_fsync          = FALSE;
 516 #endif
 517 BOOL    disable_ipv6           = FALSE;
 518 BOOL    disable_logging        = FALSE;
 519
 520 #ifdef EXPERIMENTAL_DOMAINKEYS
 521 uschar *dk_signing_domain      = NULL;
 522 uschar *dk_signing_selector    = NULL;
 523 int     dk_do_verify           = 0;
 524 #endif
 525
 526 uschar *dns_again_means_nonexist = NULL;
 527 int     dns_csa_search_limit   = 5;
 528 BOOL    dns_csa_use_reverse    = TRUE;
 529 uschar *dns_ipv4_lookup        = NULL;
 530 int     dns_retrans            = 0;
 531 int     dns_retry              = 0;
 532 uschar *dnslist_domain         = NULL;
 533 uschar *dnslist_matched        = NULL;
 534 uschar *dnslist_text           = NULL;
 535 uschar *dnslist_value          = NULL;
 536 tree_node *domainlist_anchor   = NULL;
 537 int     domainlist_count       = 0;
 538 BOOL    dont_deliver           = FALSE;
 539 BOOL    dot_ends               = TRUE;
 540 BOOL    drop_cr                = FALSE;         /* No longer used */
 541 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 542
 543 BOOL    enable_dollar_recipients = FALSE;
 544 BOOL    envelope_to_remove     = TRUE;
 545 int     errno_quota            = ERRNO_QUOTA;
 546 uschar *errors_copy            = NULL;
 547 int     error_handling         = ERRORS_SENDER;
 548 uschar *errors_reply_to        = NULL;
 549 int     errors_sender_rc       = EXIT_FAILURE;
 550
 551 gid_t   exim_gid               = EXIM_GID;
 552 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 553 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 554                         "\0<---------------Space to patch exim_path->";
 555 uid_t   exim_uid               = EXIM_UID;
 556 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 557 int     expand_forbid          = 0;
 558 int     expand_nlength[EXPAND_MAXN+1];
 559 int     expand_nmax            = -1;
 560 uschar *expand_nstring[EXPAND_MAXN+1];
 561 BOOL    expand_string_forcedfail = FALSE;
 562 uschar *expand_string_message;
 563 BOOL    extract_addresses_remove_arguments = TRUE;
 564 uschar *extra_local_interfaces = NULL;
 565
 566 int     fake_response          = OK;
 567 uschar *fake_response_text     = US"Your message has been rejected but is "
 568                                    "being kept for evaluation.\nIf it was a "
 569                                    "legitimate message, it may still be "
 570                                    "delivered to the target recipient(s).";
 571 int     filter_n[FILTER_VARIABLE_COUNT];
 572 BOOL    filter_running         = FALSE;
 573 int     filter_sn[FILTER_VARIABLE_COUNT];
 574 int     filter_test            = FTEST_NONE;
 575 uschar *filter_test_sfile      = NULL;
 576 uschar *filter_test_ufile      = NULL;
 577 uschar *filter_thisaddress     = NULL;
 578 int     finduser_retries       = 0;
 579 #ifdef WITH_OLD_DEMIME
 580 uschar *found_extension        = NULL;
 581 #endif
 582 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 583 uschar *freeze_tell            = NULL;
 584 uschar *freeze_tell_config     = NULL;
 585 uschar *fudged_queue_times     = US"";
 586
 587 uschar *gecos_name             = NULL;
 588 uschar *gecos_pattern          = NULL;
 589 rewrite_rule  *global_rewrite_rules = NULL;
 590
 591 uschar *headers_charset        = US HEADERS_CHARSET;
 592 int     header_insert_maxlen   = 64 * 1024;
 593 header_line  *header_last      = NULL;
 594 header_line  *header_list      = NULL;
 595 int     header_maxsize         = HEADER_MAXSIZE;
 596 int     header_line_maxsize    = 0;
 597
 598 header_name header_names[] = {
 599   { US"bcc",            3, TRUE,  htype_bcc },
 600   { US"cc",             2, TRUE,  htype_cc },
 601   { US"date",           4, TRUE,  htype_date },
 602   { US"delivery-date", 13, FALSE, htype_delivery_date },
 603   { US"envelope-to",   11, FALSE, htype_envelope_to },
 604   { US"from",           4, TRUE,  htype_from },
 605   { US"message-id",    10, TRUE,  htype_id },
 606   { US"received",       8, FALSE, htype_received },
 607   { US"reply-to",       8, FALSE, htype_reply_to },
 608   { US"return-path",   11, FALSE, htype_return_path },
 609   { US"sender",         6, TRUE,  htype_sender },
 610   { US"subject",        7, FALSE, htype_subject },
 611   { US"to",             2, TRUE,  htype_to }
 612 };
 613
 614 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 615
 616 BOOL    header_rewritten       = FALSE;
 617 uschar *helo_accept_junk_hosts = NULL;
 618 uschar *helo_allow_chars       = US"";
 619 uschar *helo_lookup_domains    = US"@ : @[]";
 620 uschar *helo_try_verify_hosts  = NULL;
 621 BOOL    helo_verified          = FALSE;
 622 BOOL    helo_verify_failed     = FALSE;
 623 uschar *helo_verify_hosts      = NULL;
 624 uschar *hex_digits             = US"0123456789abcdef";
 625 uschar *hold_domains           = NULL;
 626 BOOL    host_checking          = FALSE;
 627 BOOL    host_checking_callout  = FALSE;
 628 uschar *host_data              = NULL;
 629 BOOL    host_find_failed_syntax= FALSE;
 630 uschar *host_lookup            = NULL;
 631 BOOL    host_lookup_deferred   = FALSE;
 632 BOOL    host_lookup_failed     = FALSE;
 633 uschar *host_lookup_order      = US"bydns:byaddr";
 634 uschar *host_lookup_msg        = US"";
 635 int     host_number            = 0;
 636 uschar *host_number_string     = NULL;
 637 uschar *host_reject_connection = NULL;
 638 tree_node *hostlist_anchor     = NULL;
 639 int     hostlist_count         = 0;
 640 uschar *hosts_treat_as_local   = NULL;
 641 uschar *hosts_connection_nolog = NULL;
 642
 643 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 644 BOOL    ignore_fromline_local  = FALSE;
 645 uschar *ignore_fromline_hosts  = NULL;
 646 uschar *interface_address      = NULL;
 647 int     interface_port         = -1;
 648 BOOL    is_inetd               = FALSE;
 649 uschar *iterate_item           = NULL;
 650
 651 int     journal_fd             = -1;
 652
 653 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 654
 655 uschar *eldap_dn               = NULL;
 656 int     load_average           = -2;
 657 BOOL    local_error_message    = FALSE;
 658 BOOL    local_from_check       = TRUE;
 659 uschar *local_from_prefix      = NULL;
 660 uschar *local_from_suffix      = NULL;
 661
 662 #if HAVE_IPV6
 663 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 664 #else
 665 uschar *local_interfaces       = US"0.0.0.0";
 666 #endif
 667
 668 uschar *local_scan_data        = NULL;
 669 int     local_scan_timeout     = 5*60;
 670 BOOL    local_sender_retain    = FALSE;
 671 gid_t   local_user_gid         = (gid_t)(-1);
 672 uid_t   local_user_uid         = (uid_t)(-1);
 673
 674 tree_node *localpartlist_anchor= NULL;
 675 int     localpartlist_count    = 0;
 676 uschar *log_buffer             = NULL;
 677 unsigned int log_extra_selector = LX_default;
 678 uschar *log_file_path          = US LOG_FILE_PATH
 679                            "\0<--------------Space to patch log_file_path->";
 680
 681 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 682 are the ones that get put into log_write_selector. They can be used in calls to
 683 log_write() to test for the bit. The options with LX_xxx identifiers have
 684 values greater than 0x80000000 and are put int log_extra_selector (without the
 685 top bit). They are never used in calls to log_write(), but are tested
 686 independently. This separation became necessary when the number of log
 687 selectors was getting close to filling a 32-bit word. */
 688
 689 /* Note that this list must be in alphabetical order. */
 690
 691 bit_table log_options[]        = {
 692   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 693   { US"address_rewrite",              L_address_rewrite },
 694   { US"all",                          L_all },
 695   { US"all_parents",                  L_all_parents },
 696   { US"arguments",                    LX_arguments },
 697   { US"connection_reject",            L_connection_reject },
 698   { US"delay_delivery",               L_delay_delivery },
 699   { US"deliver_time",                 LX_deliver_time },
 700   { US"delivery_size",                LX_delivery_size },
 701   { US"dnslist_defer",                L_dnslist_defer },
 702   { US"etrn",                         L_etrn },
 703   { US"host_lookup_failed",           L_host_lookup_failed },
 704   { US"ident_timeout",                LX_ident_timeout },
 705   { US"incoming_interface",           LX_incoming_interface },
 706   { US"incoming_port",                LX_incoming_port },
 707   { US"lost_incoming_connection",     L_lost_incoming_connection },
 708   { US"outgoing_port",                LX_outgoing_port },
 709   { US"pid",                          LX_pid },
 710   { US"queue_run",                    L_queue_run },
 711   { US"queue_time",                   LX_queue_time },
 712   { US"queue_time_overall",           LX_queue_time_overall },
 713   { US"received_recipients",          LX_received_recipients },
 714   { US"received_sender",              LX_received_sender },
 715   { US"rejected_header",              LX_rejected_header },
 716   { US"rejected_headers",             LX_rejected_header },
 717   { US"retry_defer",                  L_retry_defer },
 718   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 719   { US"sender_on_delivery",           LX_sender_on_delivery },
 720   { US"sender_verify_fail",           LX_sender_verify_fail },
 721   { US"size_reject",                  L_size_reject },
 722   { US"skip_delivery",                L_skip_delivery },
 723   { US"smtp_confirmation",            LX_smtp_confirmation },
 724   { US"smtp_connection",              L_smtp_connection },
 725   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 726   { US"smtp_no_mail",                 LX_smtp_no_mail },
 727   { US"smtp_protocol_error",          L_smtp_protocol_error },
 728   { US"smtp_syntax_error",            L_smtp_syntax_error },
 729   { US"subject",                      LX_subject },
 730   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 731   { US"tls_cipher",                   LX_tls_cipher },
 732   { US"tls_peerdn",                   LX_tls_peerdn },
 733   { US"unknown_in_list",              LX_unknown_in_list }
 734 };
 735
 736 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 737 int     log_reject_target      = 0;
 738 uschar *log_selector_string    = NULL;
 739 FILE   *log_stderr             = NULL;
 740 BOOL    log_testing_mode       = FALSE;
 741 BOOL    log_timezone           = FALSE;
 742 unsigned int log_write_selector= L_default;
 743 uschar *login_sender_address   = NULL;
 744 int     lookup_open_max        = 25;
 745 uschar *lookup_value           = NULL;
 746
 747 macro_item  *macros            = NULL;
 748 uschar *mailstore_basename     = NULL;
 749 #ifdef WITH_CONTENT_SCAN
 750 uschar *malware_name           = NULL;  /* Virus Name */
 751 #endif
 752 int     max_received_linelength= 0;
 753 int     max_username_length    = 0;
 754 int     message_age            = 0;
 755 uschar *message_body           = NULL;
 756 uschar *message_body_end       = NULL;
 757 BOOL    message_body_newlines  = FALSE;
 758 int     message_body_size      = 0;
 759 int     message_body_visible   = 500;
 760 int     message_ended          = END_NOTSTARTED;
 761 uschar *message_headers        = NULL;
 762 uschar *message_id;
 763 uschar *message_id_domain      = NULL;
 764 uschar *message_id_text        = NULL;
 765 struct timeval message_id_tv   = { 0, 0 };
 766 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 767 uschar *message_id_external;
 768 int     message_linecount      = 0;
 769 BOOL    message_logs           = TRUE;
 770 int     message_size           = 0;
 771 uschar *message_size_limit     = US"50M";
 772 uschar  message_subdir[2]      = { 0, 0 };
 773 uschar *message_reference      = NULL;
 774
 775 /* MIME ACL expandables */
 776 #ifdef WITH_CONTENT_SCAN
 777 int     mime_anomaly_level     = 0;
 778 uschar *mime_anomaly_text      = NULL;
 779 uschar *mime_boundary          = NULL;
 780 uschar *mime_charset           = NULL;
 781 uschar *mime_content_description = NULL;
 782 uschar *mime_content_disposition = NULL;
 783 uschar *mime_content_id        = NULL;
 784 unsigned int mime_content_size = 0;
 785 uschar *mime_content_transfer_encoding = NULL;
 786 uschar *mime_content_type      = NULL;
 787 uschar *mime_decoded_filename  = NULL;
 788 uschar *mime_filename          = NULL;
 789 int     mime_is_multipart      = 0;
 790 int     mime_is_coverletter    = 0;
 791 int     mime_is_rfc822         = 0;
 792 int     mime_part_count        = -1;
 793 #endif
 794
 795 BOOL    mua_wrapper            = FALSE;
 796
 797 uid_t  *never_users            = NULL;
 798 #ifdef WITH_CONTENT_SCAN
 799 BOOL    no_mbox_unspool        = FALSE;
 800 #endif
 801 BOOL    no_multiline_responses = FALSE;
 802
 803 uid_t   original_euid;
 804 gid_t   originator_gid;
 805 uschar *originator_login       = NULL;
 806 uschar *originator_name        = NULL;
 807 uid_t   originator_uid;
 808 uschar *override_local_interfaces = NULL;
 809 uschar *override_pid_file_path = NULL;
 810
 811 BOOL    parse_allow_group      = FALSE;
 812 BOOL    parse_found_group      = FALSE;
 813 uschar *percent_hack_domains   = NULL;
 814 uschar *pid_file_path          = US PID_FILE_PATH
 815                            "\0<--------------Space to patch pid_file_path->";
 816 BOOL    pipelining_enable      = TRUE;
 817 uschar *pipelining_advertise_hosts = US"*";
 818 BOOL    preserve_message_logs  = FALSE;
 819 uschar *primary_hostname       = NULL;
 820 BOOL    print_topbitchars      = FALSE;
 821 uschar  process_info[PROCESS_INFO_SIZE];
 822 uschar *process_log_path       = NULL;
 823 BOOL    prod_requires_admin    = TRUE;
 824 uschar *prvscheck_address      = NULL;
 825 uschar *prvscheck_keynum       = NULL;
 826 uschar *prvscheck_result       = NULL;
 827
 828
 829 uschar *qualify_domain_recipient = NULL;
 830 uschar *qualify_domain_sender  = NULL;
 831 BOOL    queue_2stage           = FALSE;
 832 uschar *queue_domains          = NULL;
 833 int     queue_interval         = -1;
 834 BOOL    queue_list_requires_admin = TRUE;
 835 BOOL    queue_only             = FALSE;
 836 uschar *queue_only_file        = NULL;
 837 int     queue_only_load        = -1;
 838 BOOL    queue_only_load_latch  = TRUE;
 839 BOOL    queue_only_override    = TRUE;
 840 BOOL    queue_only_policy      = FALSE;
 841 BOOL    queue_run_first_delivery = FALSE;
 842 BOOL    queue_run_force        = FALSE;
 843 BOOL    queue_run_in_order     = FALSE;
 844 BOOL    queue_run_local        = FALSE;
 845 int     queue_run_max          = 5;
 846 pid_t   queue_run_pid          = (pid_t)0;
 847 int     queue_run_pipe         = -1;
 848 BOOL    queue_running          = FALSE;
 849 BOOL    queue_smtp             = FALSE;
 850 uschar *queue_smtp_domains     = NULL;
 851
 852 unsigned int random_seed       = 0;
 853 tree_node *ratelimiters_cmd    = NULL;
 854 tree_node *ratelimiters_conn   = NULL;
 855 tree_node *ratelimiters_mail   = NULL;
 856 uschar *raw_active_hostname    = NULL;
 857 uschar *raw_sender             = NULL;
 858 uschar **raw_recipients        = NULL;
 859 int     raw_recipients_count   = 0;
 860
 861 int     rcpt_count             = 0;
 862 int     rcpt_fail_count        = 0;
 863 int     rcpt_defer_count       = 0;
 864 gid_t   real_gid;
 865 uid_t   real_uid;
 866 BOOL    really_exim            = TRUE;
 867 BOOL    receive_call_bombout   = FALSE;
 868 int     receive_linecount      = 0;
 869 int     receive_messagecount   = 0;
 870 int     receive_timeout        = 0;
 871 int     received_count         = 0;
 872 uschar *received_for           = NULL;
 873
 874 /*  This is the default text for Received headers generated by Exim. The
 875 date  will be automatically added on the end. */
 876
 877 uschar *received_header_text   = US
 878      "Received: "
 879      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 880      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
 881      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 882      "by $primary_hostname "
 883      "${if def:received_protocol {with $received_protocol}} "
 884      #ifdef SUPPORT_TLS
 885      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 886      #endif
 887      "(Exim $version_number)\n\t"
 888      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
 889      "id $message_exim_id"
 890      "${if def:received_for {\n\tfor $received_for}}"
 891      "\0<---------------Space to patch received_header_text->";
 892
 893 int     received_headers_max   = 30;
 894 uschar *received_protocol      = NULL;
 895 int     received_time          = 0;
 896 uschar *recipient_data         = NULL;
 897 uschar *recipient_unqualified_hosts = NULL;
 898 uschar *recipient_verify_failure = NULL;
 899 int     recipients_count       = 0;
 900 BOOL    recipients_discarded   = FALSE;
 901 recipient_item  *recipients_list = NULL;
 902 int     recipients_list_max    = 0;
 903 int     recipients_max         = 0;
 904 BOOL    recipients_max_reject  = FALSE;
 905 const pcre *regex_AUTH         = NULL;
 906 const pcre *regex_check_dns_names = NULL;
 907 const pcre *regex_From         = NULL;
 908 const pcre *regex_IGNOREQUOTA  = NULL;
 909 const pcre *regex_PIPELINING   = NULL;
 910 const pcre *regex_SIZE         = NULL;
 911 const pcre *regex_smtp_code    = NULL;
 912 const pcre *regex_ismsgid      = NULL;
 913 #ifdef WITH_CONTENT_SCAN
 914 uschar *regex_match_string     = NULL;
 915 #endif
 916 int     remote_delivery_count  = 0;
 917 int     remote_max_parallel    = 2;
 918 uschar *remote_sort_domains    = NULL;
 919 int     retry_data_expire      = 7*24*60*60;
 920 int     retry_interval_max     = 24*60*60;
 921 int     retry_maximum_timeout  = 0;        /* set from retry config */
 922 retry_config  *retries         = NULL;
 923 uschar *return_path            = NULL;
 924 BOOL    return_path_remove     = TRUE;
 925 int     rewrite_existflags     = 0;
 926 uschar *rfc1413_hosts          = US"*";
 927 int     rfc1413_query_timeout  = 5;
 928 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 929 uid_t   root_uid               = ROOT_UID;
 930
 931 router_instance  *routers  = NULL;
 932 router_instance  router_defaults = {
 933     NULL,                      /* chain pointer */
 934     NULL,                      /* name */
 935     NULL,                      /* info */
 936     NULL,                      /* private options block pointer */
 937     NULL,                      /* driver name */
 938
 939     NULL,                      /* address_data */
 940 #ifdef EXPERIMENTAL_BRIGHTMAIL
 941     NULL,                      /* bmi_rule */
 942 #endif
 943     NULL,                      /* cannot_route_message */
 944     NULL,                      /* condition */
 945     NULL,                      /* current_directory */
 946     NULL,                      /* debug_string */
 947     NULL,                      /* domains */
 948     NULL,                      /* errors_to */
 949     NULL,                      /* expand_gid */
 950     NULL,                      /* expand_uid */
 951     NULL,                      /* expand_more */
 952     NULL,                      /* expand_unseen */
 953     NULL,                      /* extra_headers */
 954     NULL,                      /* fallback_hosts */
 955     NULL,                      /* home_directory */
 956     NULL,                      /* ignore_target_hosts */
 957     NULL,                      /* local_parts */
 958     NULL,                      /* pass_router_name */
 959     NULL,                      /* prefix */
 960     NULL,                      /* redirect_router_name */
 961     NULL,                      /* remove_headers */
 962     NULL,                      /* require_files */
 963     NULL,                      /* router_home_directory */
 964     US"freeze",                /* self */
 965     NULL,                      /* senders */
 966     NULL,                      /* suffix */
 967     NULL,                      /* translate_ip_address */
 968     NULL,                      /* transport_name */
 969
 970     TRUE,                      /* address_test */
 971 #ifdef EXPERIMENTAL_BRIGHTMAIL
 972     FALSE,                     /* bmi_deliver_alternate */
 973     FALSE,                     /* bmi_deliver_default */
 974     FALSE,                     /* bmi_dont_deliver */
 975 #endif
 976     TRUE,                      /* expn */
 977     FALSE,                     /* caseful_local_part */
 978     FALSE,                     /* check_local_user */
 979     FALSE,                     /* disable_logging */
 980     FALSE,                     /* fail_verify_recipient */
 981     FALSE,                     /* fail_verify_sender */
 982     FALSE,                     /* gid_set */
 983     FALSE,                     /* initgroups */
 984     TRUE_UNSET,                /* log_as_local */
 985     TRUE,                      /* more */
 986     FALSE,                     /* pass_on_timeout */
 987     FALSE,                     /* prefix_optional */
 988     TRUE,                      /* repeat_use */
 989     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 990     FALSE,                     /* same_domain_copy_routing */
 991     FALSE,                     /* self_rewrite */
 992     FALSE,                     /* suffix_optional */
 993     FALSE,                     /* verify_only */
 994     TRUE,                      /* verify_recipient */
 995     TRUE,                      /* verify_sender */
 996     FALSE,                     /* uid_set */
 997     FALSE,                     /* unseen */
 998
 999     self_freeze,               /* self_code */
1000     (uid_t)(-1),               /* uid */
1001     (gid_t)(-1),               /* gid */
1002
1003     NULL,                      /* fallback_hostlist */
1004     NULL,                      /* transport instance */
1005     NULL,                      /* pass_router */
1006     NULL                       /* redirect_router */
1007 };
1008
1009 ip_address_item *running_interfaces = NULL;
1010 BOOL    running_in_test_harness = FALSE;
1011
1012 /* This is a weird one. The following string gets patched in the binary by the
1013 script that sets up a copy of Exim for running in the test harness. It seems
1014 that compilers are now clever, and share constant strings if they can.
1015 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1016 make use of the end of this string in order to save space. So the patching then
1017 wrecks this. We defeat this optimization by adding some additional characters
1018 onto the end of the string. */
1019
1020 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1021
1022 int     runrc                  = 0;
1023
1024 uschar *search_error_message   = NULL;
1025 BOOL    search_find_defer      = FALSE;
1026 uschar *self_hostname          = NULL;
1027 uschar *sender_address         = NULL;
1028 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1029 uschar *sender_address_data    = NULL;
1030 BOOL    sender_address_forced  = FALSE;
1031 uschar *sender_address_unrewritten = NULL;
1032 uschar *sender_data            = NULL;
1033 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1034 uschar *sender_fullhost        = NULL;
1035 uschar *sender_helo_name       = NULL;
1036 uschar **sender_host_aliases   = &no_aliases;
1037 uschar *sender_host_address    = NULL;
1038 uschar *sender_host_authenticated = NULL;
1039 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1040 uschar *sender_host_name       = NULL;
1041 int     sender_host_port       = 0;
1042 BOOL    sender_host_notsocket  = FALSE;
1043 BOOL    sender_host_unknown    = FALSE;
1044 uschar *sender_ident           = NULL;
1045 BOOL    sender_local           = FALSE;
1046 BOOL    sender_name_forced     = FALSE;
1047 uschar *sender_rate            = NULL;
1048 uschar *sender_rate_limit      = NULL;
1049 uschar *sender_rate_period     = NULL;
1050 uschar *sender_rcvhost         = NULL;
1051 BOOL    sender_set_untrusted   = FALSE;
1052 uschar *sender_unqualified_hosts = NULL;
1053 uschar *sender_verify_failure = NULL;
1054 address_item *sender_verified_list  = NULL;
1055 address_item *sender_verified_failed = NULL;
1056 int     sender_verified_rc     = -1;
1057 BOOL    sender_verified_responded = FALSE;
1058 uschar *sending_ip_address     = NULL;
1059 int     sending_port           = -1;
1060 volatile  BOOL sigalrm_seen    = FALSE;
1061 uschar **sighup_argv           = NULL;
1062 int     smtp_accept_count      = 0;
1063 BOOL    smtp_accept_keepalive  = TRUE;
1064 int     smtp_accept_max        = 20;
1065 int     smtp_accept_max_nonmail= 10;
1066 uschar *smtp_accept_max_nonmail_hosts = US"*";
1067 int     smtp_accept_max_per_connection = 1000;
1068 uschar *smtp_accept_max_per_host = NULL;
1069 int     smtp_accept_queue      = 0;
1070 int     smtp_accept_queue_per_connection = 10;
1071 int     smtp_accept_reserve    = 0;
1072 uschar *smtp_active_hostname   = NULL;
1073 BOOL    smtp_authenticated     = FALSE;
1074 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1075                              "Exim $version_number $tod_full"
1076                              "\0<---------------Space to patch smtp_banner->";
1077 BOOL    smtp_batched_input     = FALSE;
1078 BOOL    smtp_check_spool_space = TRUE;
1079 int     smtp_ch_index          = 0;
1080 uschar *smtp_cmd_argument      = NULL;
1081 uschar *smtp_cmd_buffer        = NULL;
1082 time_t  smtp_connection_start  = 0;
1083 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1084 int     smtp_connect_backlog   = 20;
1085 double  smtp_delay_mail        = 0.0;
1086 double  smtp_delay_rcpt        = 0.0;
1087 BOOL    smtp_enforce_sync      = TRUE;
1088 FILE   *smtp_in                = NULL;
1089 BOOL    smtp_input             = FALSE;
1090 int     smtp_load_reserve      = -1;
1091 int     smtp_mailcmd_count     = 0;
1092 FILE   *smtp_out               = NULL;
1093 uschar *smtp_etrn_command      = NULL;
1094 BOOL    smtp_etrn_serialize    = TRUE;
1095 int     smtp_max_synprot_errors= 3;
1096 int     smtp_max_unknown_commands = 3;
1097 uschar *smtp_notquit_reason    = NULL;
1098 uschar *smtp_ratelimit_hosts   = NULL;
1099 uschar *smtp_ratelimit_mail    = NULL;
1100 uschar *smtp_ratelimit_rcpt    = NULL;
1101 uschar *smtp_read_error        = US"";
1102 int     smtp_receive_timeout   = 5*60;
1103 uschar *smtp_reserve_hosts     = NULL;
1104 BOOL    smtp_return_error_details = FALSE;
1105 int     smtp_rlm_base          = 0;
1106 double  smtp_rlm_factor        = 0.0;
1107 int     smtp_rlm_limit         = 0;
1108 int     smtp_rlm_threshold     = INT_MAX;
1109 int     smtp_rlr_base          = 0;
1110 double  smtp_rlr_factor        = 0.0;
1111 int     smtp_rlr_limit         = 0;
1112 int     smtp_rlr_threshold     = INT_MAX;
1113 BOOL    smtp_use_pipelining    = FALSE;
1114 BOOL    smtp_use_size          = FALSE;
1115
1116 #ifdef WITH_CONTENT_SCAN
1117 uschar *spamd_address          = US"127.0.0.1 783";
1118 uschar *spam_bar               = NULL;
1119 uschar *spam_report            = NULL;
1120 uschar *spam_score             = NULL;
1121 uschar *spam_score_int         = NULL;
1122 #endif
1123 #ifdef EXPERIMENTAL_SPF
1124 uschar *spf_header_comment     = NULL;
1125 uschar *spf_received           = NULL;
1126 uschar *spf_result             = NULL;
1127 uschar *spf_smtp_comment       = NULL;
1128 #endif
1129
1130 BOOL    split_spool_directory  = FALSE;
1131 uschar *spool_directory        = US SPOOL_DIRECTORY
1132                            "\0<--------------Space to patch spool_directory->";
1133 #ifdef EXPERIMENTAL_SRS
1134 uschar *srs_config             = NULL;
1135 uschar *srs_db_address         = NULL;
1136 uschar *srs_db_key             = NULL;
1137 int     srs_hashlength         = 6;
1138 int     srs_hashmin            = -1;
1139 int     srs_maxage             = 31;
1140 uschar *srs_orig_recipient     = NULL;
1141 uschar *srs_orig_sender        = NULL;
1142 uschar *srs_recipient          = NULL;
1143 uschar *srs_secrets            = NULL;
1144 uschar *srs_status             = NULL;
1145 BOOL    srs_usehash            = TRUE;
1146 BOOL    srs_usetimestamp       = TRUE;
1147 #endif
1148 BOOL    strict_acl_vars        = FALSE;
1149 int     string_datestamp_offset= -1;
1150 BOOL    strip_excess_angle_brackets = FALSE;
1151 BOOL    strip_trailing_dot     = FALSE;
1152 uschar *submission_domain      = NULL;
1153 BOOL    submission_mode        = FALSE;
1154 uschar *submission_name        = NULL;
1155 BOOL    suppress_local_fixups  = FALSE;
1156 BOOL    synchronous_delivery   = FALSE;
1157 BOOL    syslog_duplication     = TRUE;
1158 int     syslog_facility        = LOG_MAIL;
1159 uschar *syslog_processname     = US"exim";
1160 BOOL    syslog_timestamp       = TRUE;
1161 uschar *system_filter          = NULL;
1162
1163 uschar *system_filter_directory_transport = NULL;
1164 uschar *system_filter_file_transport = NULL;
1165 uschar *system_filter_pipe_transport = NULL;
1166 uschar *system_filter_reply_transport = NULL;
1167
1168 gid_t   system_filter_gid      = 0;
1169 BOOL    system_filter_gid_set  = FALSE;
1170 uid_t   system_filter_uid      = 0;
1171 BOOL    system_filter_uid_set  = FALSE;
1172 BOOL    system_filtering       = FALSE;
1173
1174 BOOL    tcp_nodelay            = TRUE;
1175 int     test_harness_load_avg  = 0;
1176 int     thismessage_size_limit = 0;
1177 int     timeout_frozen_after   = 0;
1178 BOOL    timestamps_utc         = FALSE;
1179
1180 transport_instance  *transports = NULL;
1181
1182 transport_instance  transport_defaults = {
1183     NULL,                     /* chain pointer */
1184     NULL,                     /* name */
1185     NULL,                     /* info */
1186     NULL,                     /* private options block pointer */
1187     NULL,                     /* driver name */
1188     NULL,                     /* setup entry point */
1189     1,                        /* batch_max */
1190     NULL,                     /* batch_id */
1191     NULL,                     /* home_dir */
1192     NULL,                     /* current_dir */
1193     TRUE,                     /* multi-domain */
1194     FALSE,                    /* overrides_hosts */
1195     100,                      /* max_addresses */
1196     500,                      /* connection_max_messages */
1197     FALSE,                    /* deliver_as_creator */
1198     FALSE,                    /* disable_logging */
1199     FALSE,                    /* initgroups */
1200     FALSE,                    /* uid_set */
1201     FALSE,                    /* gid_set */
1202     (uid_t)(-1),              /* uid */
1203     (gid_t)(-1),              /* gid */
1204     NULL,                     /* expand_uid */
1205     NULL,                     /* expand_gid */
1206     NULL,                     /* warn_message */
1207     NULL,                     /* shadow */
1208     NULL,                     /* shadow_condition */
1209     NULL,                     /* filter_command */
1210     NULL,                     /* add_headers */
1211     NULL,                     /* remove_headers */
1212     NULL,                     /* return_path */
1213     NULL,                     /* debug_string */
1214     NULL,                     /* message_size_limit */
1215     NULL,                     /* headers_rewrite */
1216     NULL,                     /* rewrite_rules */
1217     0,                        /* rewrite_existflags */
1218     300,                      /* filter_timeout */
1219     FALSE,                    /* body_only */
1220     FALSE,                    /* delivery_date_add */
1221     FALSE,                    /* envelope_to_add */
1222     FALSE,                    /* headers_only */
1223     FALSE,                    /* rcpt_include_affixes */
1224     FALSE,                    /* return_path_add */
1225     FALSE,                    /* return_output */
1226     FALSE,                    /* return_fail_output */
1227     FALSE,                    /* log_output */
1228     FALSE,                    /* log_fail_output */
1229     FALSE,                    /* log_defer_output */
1230     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1231                                  1 nor 0 so can detect unset */
1232 };
1233
1234 int     transport_count;
1235 uschar **transport_filter_argv  = NULL;
1236 int     transport_filter_timeout;
1237 BOOL    transport_filter_timed_out = FALSE;
1238 int     transport_write_timeout= 0;
1239
1240 tree_node  *tree_dns_fails     = NULL;
1241 tree_node  *tree_duplicates    = NULL;
1242 tree_node  *tree_nonrecipients = NULL;
1243 tree_node  *tree_unusable      = NULL;
1244
1245 BOOL    trusted_caller         = FALSE;
1246 gid_t  *trusted_groups         = NULL;
1247 uid_t  *trusted_users          = NULL;
1248 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1249
1250 uschar *unknown_login          = NULL;
1251 uschar *unknown_username       = NULL;
1252 uschar *untrusted_set_sender   = NULL;
1253
1254 /*  A regex for matching a "From_" line in an incoming message, in the form
1255
1256     From ph10 Fri Jan  5 12:35 GMT 1996
1257
1258 which  the "mail" commands send to the MTA (undocumented, of course), or in
1259 the  form
1260
1261     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1262
1263 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1264 Because  of variations in time formats, just match up to the minutes. That
1265 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1266 so  just require one digit for hours and minutes. The weekday is also absent
1267 in  some forms. */
1268
1269 uschar *uucp_from_pattern      = US
1270    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1271    "(?:"                                          /* Non-extracting bracket */
1272    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1273    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1274    ")"                                            /* End alternation */
1275    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1276
1277 uschar *uucp_from_sender       = US"$1";
1278
1279 uschar *warn_message_file      = NULL;
1280 uschar *warnmsg_delay          = NULL;
1281 uschar *warnmsg_recipients     = NULL;
1282 BOOL    write_rejectlog        = TRUE;
1283
1284 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2006";
1285 uschar *version_date           = US"?";
1286 uschar *version_cnumber        = US"????";
1287 uschar *version_string         = US"?";
1288
1289 int     warning_count          = 0;
1290
1291 /*  End of globals.c */