src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2014 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* All the global variables are defined together in this one module, so
   9 that they are easy to find. */
  10
  11 #include "exim.h"
  12
  13
  14 /* Generic options for auths, all of which live inside auth_instance
  15 data blocks and hence have the opt_public flag set. */
  16
  17 optionlist optionlist_auths[] = {
  18   { "client_condition", opt_stringptr | opt_public,
  19                  (void *)(offsetof(auth_instance, client_condition)) },
  20   { "client_set_id", opt_stringptr | opt_public,
  21                  (void *)(offsetof(auth_instance, set_client_id)) },
  22   { "driver",        opt_stringptr | opt_public,
  23                  (void *)(offsetof(auth_instance, driver_name)) },
  24   { "public_name",   opt_stringptr | opt_public,
  25                  (void *)(offsetof(auth_instance, public_name)) },
  26   { "server_advertise_condition", opt_stringptr | opt_public,
  27                  (void *)(offsetof(auth_instance, advertise_condition))},
  28   { "server_condition", opt_stringptr | opt_public,
  29                  (void *)(offsetof(auth_instance, server_condition)) },
  30   { "server_debug_print", opt_stringptr | opt_public,
  31                  (void *)(offsetof(auth_instance, server_debug_string)) },
  32   { "server_mail_auth_condition", opt_stringptr | opt_public,
  33                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  34   { "server_set_id", opt_stringptr | opt_public,
  35                  (void *)(offsetof(auth_instance, set_id)) }
  36 };
  37
  38 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  39
  40 /* An empty host aliases list. */
  41
  42 uschar *no_aliases             = NULL;
  43
  44
  45 /* For comments on these variables, see globals.h. I'm too idle to
  46 duplicate them here... */
  47
  48 #ifdef EXIM_PERL
  49 uschar *opt_perl_startup       = NULL;
  50 BOOL    opt_perl_at_start      = FALSE;
  51 BOOL    opt_perl_started       = FALSE;
  52 #endif
  53
  54 #ifdef EXPAND_DLFUNC
  55 tree_node *dlobj_anchor        = NULL;
  56 #endif
  57
  58 #ifdef LOOKUP_IBASE
  59 uschar *ibase_servers          = NULL;
  60 #endif
  61
  62 #ifdef LOOKUP_LDAP
  63 uschar *eldap_ca_cert_dir      = NULL;
  64 uschar *eldap_ca_cert_file     = NULL;
  65 uschar *eldap_cert_file        = NULL;
  66 uschar *eldap_cert_key         = NULL;
  67 uschar *eldap_cipher_suite     = NULL;
  68 uschar *eldap_default_servers  = NULL;
  69 uschar *eldap_require_cert     = NULL;
  70 int     eldap_version          = -1;
  71 BOOL    eldap_start_tls        = FALSE;
  72 #endif
  73
  74 #ifdef LOOKUP_MYSQL
  75 uschar *mysql_servers          = NULL;
  76 #endif
  77
  78 #ifdef LOOKUP_ORACLE
  79 uschar *oracle_servers         = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_PGSQL
  83 uschar *pgsql_servers          = NULL;
  84 #endif
  85
  86 #ifdef EXPERIMENTAL_REDIS
  87 uschar *redis_servers          = NULL;
  88 #endif
  89
  90 #ifdef LOOKUP_SQLITE
  91 int     sqlite_lock_timeout    = 5;
  92 #endif
  93
  94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  95 BOOL    move_frozen_messages   = FALSE;
  96 #endif
  97
  98 /* These variables are outside the #ifdef because it keeps the code less
  99 cluttered in several places (e.g. during logging) if we can always refer to
 100 them. Also, the tls_ variables are now always visible. */
 101
 102 tls_support tls_in = {
 103  -1,   /* tls_active */
 104  0,    /* tls_bits */
 105  FALSE,/* tls_certificate_verified */
 106 #ifdef EXPERIMENTAL_DANE
 107  FALSE,/* dane_verified */
 108  0,    /* tlsa_usage */
 109 #endif
 110  NULL, /* tls_cipher */
 111  FALSE,/* tls_on_connect */
 112  NULL, /* tls_on_connect_ports */
 113  NULL, /* tls_ourcert */
 114  NULL, /* tls_peercert */
 115  NULL, /* tls_peerdn */
 116  NULL, /* tls_sni */
 117  0     /* tls_ocsp */
 118 };
 119 tls_support tls_out = {
 120  -1,   /* tls_active */
 121  0,    /* tls_bits */
 122  FALSE,/* tls_certificate_verified */
 123 #ifdef EXPERIMENTAL_DANE
 124  FALSE,/* dane_verified */
 125  0,    /* tlsa_usage */
 126 #endif
 127  NULL, /* tls_cipher */
 128  FALSE,/* tls_on_connect */
 129  NULL, /* tls_on_connect_ports */
 130  NULL, /* tls_ourcert */
 131  NULL, /* tls_peercert */
 132  NULL, /* tls_peerdn */
 133  NULL, /* tls_sni */
 134  0     /* tls_ocsp */
 135 };
 136
 137 uschar *dsn_envid              = NULL;
 138 int     dsn_ret                = 0;
 139 const pcre  *regex_DSN         = NULL;
 140 BOOL    smtp_use_dsn           = FALSE;
 141 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *gnutls_require_mac     = NULL;
 147 uschar *gnutls_require_kx      = NULL;
 148 uschar *gnutls_require_proto   = NULL;
 149 uschar *openssl_options        = NULL;
 150 const pcre *regex_STARTTLS     = NULL;
 151 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 152 uschar *tls_certificate        = NULL;
 153 uschar *tls_crl                = NULL;
 154 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 155 that's the interop problem which has been observed: GnuTLS suggesting a higher
 156 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 157 int     tls_dh_max_bits        = 2236;
 158 uschar *tls_dhparam            = NULL;
 159 #ifndef DISABLE_OCSP
 160 uschar *tls_ocsp_file          = NULL;
 161 #endif
 162 BOOL    tls_offered            = FALSE;
 163 uschar *tls_privatekey         = NULL;
 164 BOOL    tls_remember_esmtp     = FALSE;
 165 uschar *tls_require_ciphers    = NULL;
 166 uschar *tls_try_verify_hosts   = NULL;
 167 uschar *tls_verify_certificates= US"system";
 168 uschar *tls_verify_hosts       = NULL;
 169 #endif
 170
 171 #ifndef DISABLE_PRDR
 172 /* Per Recipient Data Response variables */
 173 BOOL    prdr_enable            = FALSE;
 174 BOOL    prdr_requested         = FALSE;
 175 const pcre *regex_PRDR         = NULL;
 176 #endif
 177
 178 /* Input-reading functions for messages, so we can use special ones for
 179 incoming TCP/IP. The defaults use stdin. We never need these for any
 180 stand-alone tests. */
 181
 182 #ifndef STAND_ALONE
 183 int (*receive_getc)(void)      = stdin_getc;
 184 int (*receive_ungetc)(int)     = stdin_ungetc;
 185 int (*receive_feof)(void)      = stdin_feof;
 186 int (*receive_ferror)(void)    = stdin_ferror;
 187 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 188 #endif
 189
 190
 191 /* List of per-address expansion variables for clearing and saving/restoring
 192 when verifying one address while routing/verifying another. We have to have
 193 the size explicit, because it is referenced from more than one module. */
 194
 195 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 196   CUSS &deliver_address_data,
 197   CUSS &deliver_domain,
 198   CUSS &deliver_domain_data,
 199   CUSS &deliver_domain_orig,
 200   CUSS &deliver_domain_parent,
 201   CUSS &deliver_localpart,
 202   CUSS &deliver_localpart_data,
 203   CUSS &deliver_localpart_orig,
 204   CUSS &deliver_localpart_parent,
 205   CUSS &deliver_localpart_prefix,
 206   CUSS &deliver_localpart_suffix,
 207   CUSS (uschar **)(&deliver_recipients),
 208   CUSS &deliver_host,
 209   CUSS &deliver_home,
 210   CUSS &address_file,
 211   CUSS &address_pipe,
 212   CUSS &self_hostname,
 213   NULL };
 214
 215 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 216
 217 /* General global variables */
 218
 219 header_line *acl_added_headers = NULL;
 220 tree_node *acl_anchor          = NULL;
 221 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 222                                   NULL, NULL, NULL, NULL};
 223 int     acl_narg               = 0;
 224
 225 uschar *acl_not_smtp           = NULL;
 226 #ifdef WITH_CONTENT_SCAN
 227 uschar *acl_not_smtp_mime      = NULL;
 228 #endif
 229 uschar *acl_not_smtp_start     = NULL;
 230 uschar *acl_removed_headers    = NULL;
 231 uschar *acl_smtp_auth          = NULL;
 232 uschar *acl_smtp_connect       = NULL;
 233 uschar *acl_smtp_data          = NULL;
 234 #ifndef DISABLE_PRDR
 235 uschar *acl_smtp_data_prdr     = US"accept";
 236 #endif
 237 #ifndef DISABLE_DKIM
 238 uschar *acl_smtp_dkim          = NULL;
 239 #endif
 240 uschar *acl_smtp_etrn          = NULL;
 241 uschar *acl_smtp_expn          = NULL;
 242 uschar *acl_smtp_helo          = NULL;
 243 uschar *acl_smtp_mail          = NULL;
 244 uschar *acl_smtp_mailauth      = NULL;
 245 #ifdef WITH_CONTENT_SCAN
 246 uschar *acl_smtp_mime          = NULL;
 247 #endif
 248 uschar *acl_smtp_notquit       = NULL;
 249 uschar *acl_smtp_predata       = NULL;
 250 uschar *acl_smtp_quit          = NULL;
 251 uschar *acl_smtp_rcpt          = NULL;
 252 uschar *acl_smtp_starttls      = NULL;
 253 uschar *acl_smtp_vrfy          = NULL;
 254
 255 BOOL    acl_temp_details       = FALSE;
 256 tree_node *acl_var_c           = NULL;
 257 tree_node *acl_var_m           = NULL;
 258 uschar *acl_verify_message     = NULL;
 259 string_item *acl_warn_logged   = NULL;
 260
 261 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 262 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 263
 264 uschar *acl_wherenames[]       = { US"RCPT",
 265                                    US"MAIL",
 266                                    US"PREDATA",
 267                                    US"MIME",
 268                                    US"DKIM",
 269                                    US"DATA",
 270 #ifndef DISABLE_PRDR
 271                                    US"PRDR",
 272 #endif
 273                                    US"non-SMTP",
 274                                    US"AUTH",
 275                                    US"connection",
 276                                    US"ETRN",
 277                                    US"EXPN",
 278                                    US"EHLO or HELO",
 279                                    US"MAILAUTH",
 280                                    US"non-SMTP-start",
 281                                    US"NOTQUIT",
 282                                    US"QUIT",
 283                                    US"STARTTLS",
 284                                    US"VRFY",
 285                                    US"delivery",
 286                                    US"unknown"
 287                                  };
 288
 289 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 290                                    US"550",     /* MAIL */
 291                                    US"550",     /* PREDATA */
 292                                    US"550",     /* MIME */
 293                                    US"550",     /* DKIM */
 294                                    US"550",     /* DATA */
 295 #ifndef DISABLE_PRDR
 296                                    US"550",    /* RCPT PRDR */
 297 #endif
 298                                    US"0",       /* not SMTP; not relevant */
 299                                    US"503",     /* AUTH */
 300                                    US"550",     /* connect */
 301                                    US"458",     /* ETRN */
 302                                    US"550",     /* EXPN */
 303                                    US"550",     /* HELO/EHLO */
 304                                    US"0",       /* MAILAUTH; not relevant */
 305                                    US"0",       /* not SMTP; not relevant */
 306                                    US"0",       /* NOTQUIT; not relevant */
 307                                    US"0",       /* QUIT; not relevant */
 308                                    US"550",     /* STARTTLS */
 309                                    US"252",     /* VRFY */
 310                                    US"0",       /* delivery; not relevant */
 311                                    US"0"        /* unknown; not relevant */
 312                                  };
 313
 314 BOOL    active_local_from_check = FALSE;
 315 BOOL    active_local_sender_retain = FALSE;
 316 int     body_8bitmime = 0;
 317 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 318 address_item  *addr_duplicate  = NULL;
 319
 320 address_item address_defaults = {
 321   NULL,                 /* next */
 322   NULL,                 /* parent */
 323   NULL,                 /* first */
 324   NULL,                 /* dupof */
 325   NULL,                 /* start_router */
 326   NULL,                 /* router */
 327   NULL,                 /* transport */
 328   NULL,                 /* host_list */
 329   NULL,                 /* host_used */
 330   NULL,                 /* fallback_hosts */
 331   NULL,                 /* reply */
 332   NULL,                 /* retries */
 333   NULL,                 /* address */
 334   NULL,                 /* unique */
 335   NULL,                 /* cc_local_part */
 336   NULL,                 /* lc_local_part */
 337   NULL,                 /* local_part */
 338   NULL,                 /* prefix */
 339   NULL,                 /* suffix */
 340   NULL,                 /* domain */
 341   NULL,                 /* address_retry_key */
 342   NULL,                 /* domain_retry_key */
 343   NULL,                 /* current_dir */
 344   NULL,                 /* home_dir */
 345   NULL,                 /* message */
 346   NULL,                 /* user_message */
 347   NULL,                 /* onetime_parent */
 348   NULL,                 /* pipe_expandn */
 349   NULL,                 /* return_filename */
 350   NULL,                 /* self_hostname */
 351   NULL,                 /* shadow_message */
 352   #ifdef SUPPORT_TLS
 353   NULL,                 /* cipher */
 354   NULL,                 /* ourcert */
 355   NULL,                 /* peercert */
 356   NULL,                 /* peerdn */
 357   OCSP_NOT_REQ,         /* ocsp */
 358   #endif
 359   NULL,                 /* authenticator */
 360   NULL,                 /* auth_id */
 361   NULL,                 /* auth_sndr */
 362   NULL,                 /* dsn_orcpt */
 363   0,                    /* dsn_flags */
 364   0,                    /* dsn_aware */
 365   (uid_t)(-1),          /* uid */
 366   (gid_t)(-1),          /* gid */
 367   0,                    /* flags */
 368   { 0 },                /* domain_cache - any larger array should be zeroed */
 369   { 0 },                /* localpart_cache - ditto */
 370   -1,                   /* mode */
 371   0,                    /* more_errno */
 372   ERRNO_UNKNOWNERROR,   /* basic_errno */
 373   0,                    /* child_count */
 374   -1,                   /* return_file */
 375   SPECIAL_NONE,         /* special_action */
 376   DEFER,                /* transport_return */
 377   {                     /* fields that are propagated to children */
 378     NULL,               /* address_data */
 379     NULL,               /* domain_data */
 380     NULL,               /* localpart_data */
 381     NULL,               /* errors_address */
 382     NULL,               /* extra_headers */
 383     NULL,               /* remove_headers */
 384 #ifdef EXPERIMENTAL_SRS
 385     NULL,               /* srs_sender */
 386 #endif
 387   }
 388 };
 389
 390 uschar *address_file           = NULL;
 391 uschar *address_pipe           = NULL;
 392 BOOL    address_test_mode      = FALSE;
 393 tree_node *addresslist_anchor  = NULL;
 394 int     addresslist_count      = 0;
 395 gid_t  *admin_groups           = NULL;
 396 BOOL    admin_user             = FALSE;
 397 BOOL    allow_auth_unadvertised= FALSE;
 398 BOOL    allow_domain_literals  = FALSE;
 399 BOOL    allow_mx_to_ip         = FALSE;
 400 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 401 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 402 BOOL    allow_utf8_domains     = FALSE;
 403 uschar *authenticated_fail_id  = NULL;
 404 uschar *authenticated_id       = NULL;
 405 uschar *authenticated_sender   = NULL;
 406 BOOL    authentication_failed  = FALSE;
 407 auth_instance  *auths          = NULL;
 408 uschar *auth_advertise_hosts   = US"*";
 409 auth_instance auth_defaults    = {
 410     NULL,                      /* chain pointer */
 411     NULL,                      /* name */
 412     NULL,                      /* info */
 413     NULL,                      /* private options block pointer */
 414     NULL,                      /* driver_name */
 415     NULL,                      /* advertise_condition */
 416     NULL,                      /* client_condition */
 417     NULL,                      /* public_name */
 418     NULL,                      /* set_id */
 419     NULL,                      /* set_client_id */
 420     NULL,                      /* server_mail_auth_condition */
 421     NULL,                      /* server_debug_string */
 422     NULL,                      /* server_condition */
 423     FALSE,                     /* client */
 424     FALSE,                     /* server */
 425     FALSE                      /* advertised */
 426 };
 427
 428 uschar *auth_defer_msg         = US"reason not recorded";
 429 uschar *auth_defer_user_msg    = US"";
 430 uschar *auth_vars[AUTH_VARS];
 431 int     auto_thaw              = 0;
 432 #ifdef WITH_CONTENT_SCAN
 433 BOOL    av_failed              = FALSE;
 434 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 435 #endif
 436
 437 BOOL    background_daemon      = TRUE;
 438
 439 #if BASE_62 == 62
 440 uschar *base62_chars=
 441     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 442 #else
 443 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 444 #endif
 445
 446 uschar *bi_command             = NULL;
 447 uschar *big_buffer             = NULL;
 448 int     big_buffer_size        = BIG_BUFFER_SIZE;
 449 #ifdef EXPERIMENTAL_BRIGHTMAIL
 450 uschar *bmi_alt_location       = NULL;
 451 uschar *bmi_base64_tracker_verdict = NULL;
 452 uschar *bmi_base64_verdict     = NULL;
 453 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 454 int     bmi_deliver            = 1;
 455 int     bmi_run                = 0;
 456 uschar *bmi_verdicts           = NULL;
 457 #endif
 458 int     body_linecount         = 0;
 459 int     body_zerocount         = 0;
 460 uschar *bounce_message_file    = NULL;
 461 uschar *bounce_message_text    = NULL;
 462 uschar *bounce_recipient       = NULL;
 463 BOOL    bounce_return_body     = TRUE;
 464 BOOL    bounce_return_message  = TRUE;
 465 int     bounce_return_size_limit = 100*1024;
 466 uschar *bounce_sender_authentication = NULL;
 467 int     bsmtp_transaction_linecount = 0;
 468
 469 int     callout_cache_domain_positive_expire = 7*24*60*60;
 470 int     callout_cache_domain_negative_expire = 3*60*60;
 471 int     callout_cache_positive_expire = 24*60*60;
 472 int     callout_cache_negative_expire = 2*60*60;
 473 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 474 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 475 int     check_log_inodes       = 0;
 476 int     check_log_space        = 0;
 477 BOOL    check_rfc2047_length   = TRUE;
 478 int     check_spool_inodes     = 0;
 479 int     check_spool_space      = 0;
 480 uschar  *client_authenticator  = NULL;
 481 uschar  *client_authenticated_id = NULL;
 482 uschar  *client_authenticated_sender = NULL;
 483 int     clmacro_count          = 0;
 484 uschar *clmacros[MAX_CLMACROS];
 485 BOOL    config_changed         = FALSE;
 486 FILE   *config_file            = NULL;
 487 uschar *config_filename        = NULL;
 488 int     config_lineno          = 0;
 489 #ifdef CONFIGURE_GROUP
 490 gid_t   config_gid             = CONFIGURE_GROUP;
 491 #endif
 492 uschar *config_main_filelist   = US CONFIGURE_FILE
 493                          "\0<-----------Space to patch configure_filename->";
 494 uschar *config_main_filename   = NULL;
 495 uschar *config_main_directory  = NULL;
 496
 497 #ifdef CONFIGURE_OWNER
 498 uid_t   config_uid             = CONFIGURE_OWNER;
 499 #endif
 500
 501 int     connection_max_messages= -1;
 502 uschar *continue_hostname      = NULL;
 503 uschar *continue_host_address  = NULL;
 504 BOOL    continue_more          = FALSE;
 505 int     continue_sequence      = 1;
 506 uschar *continue_transport     = NULL;
 507
 508 uschar *csa_status             = NULL;
 509 cut_t   cutthrough = {
 510   FALSE,                                /* delivery: when to attempt */
 511   -1,                                   /* fd: open connection */
 512   0,                                    /* nrcpt: number of addresses */
 513 };
 514
 515 BOOL    daemon_listen          = FALSE;
 516 uschar *daemon_smtp_port       = US"smtp";
 517 int     daemon_startup_retries = 9;
 518 int     daemon_startup_sleep   = 30;
 519
 520 #ifdef EXPERIMENTAL_DCC
 521 BOOL    dcc_direct_add_header  = FALSE;
 522 uschar *dcc_header             = NULL;
 523 uschar *dcc_result             = NULL;
 524 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 525 uschar *dccifd_options         = US"header";
 526 #endif
 527
 528 BOOL    debug_daemon           = FALSE;
 529 int     debug_fd               = -1;
 530 FILE   *debug_file             = NULL;
 531 bit_table debug_options[]      = {
 532   { US"acl",            D_acl },
 533   { US"all",            D_all },
 534   { US"auth",           D_auth },
 535   { US"deliver",        D_deliver },
 536   { US"dns",            D_dns },
 537   { US"dnsbl",          D_dnsbl },
 538   { US"exec",           D_exec },
 539   { US"expand",         D_expand },
 540   { US"filter",         D_filter },
 541   { US"hints_lookup",   D_hints_lookup },
 542   { US"host_lookup",    D_host_lookup },
 543   { US"ident",          D_ident },
 544   { US"interface",      D_interface },
 545   { US"lists",          D_lists },
 546   { US"load",           D_load },
 547   { US"local_scan",     D_local_scan },
 548   { US"lookup",         D_lookup },
 549   { US"memory",         D_memory },
 550   { US"pid",            D_pid },
 551   { US"process_info",   D_process_info },
 552   { US"queue_run",      D_queue_run },
 553   { US"receive",        D_receive },
 554   { US"resolver",       D_resolver },
 555   { US"retry",          D_retry },
 556   { US"rewrite",        D_rewrite },
 557   { US"route",          D_route },
 558   { US"timestamp",      D_timestamp },
 559   { US"tls",            D_tls },
 560   { US"transport",      D_transport },
 561   { US"uid",            D_uid },
 562   { US"verify",         D_verify }
 563 };
 564 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 565 unsigned int debug_selector    = 0;
 566 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 567 uschar *delay_warning_condition=
 568   US"${if or {"
 569             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 570             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 571             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 572             "} {no}{yes}}";
 573 BOOL    delivery_date_remove   = TRUE;
 574 uschar *deliver_address_data   = NULL;
 575 int     deliver_datafile       = -1;
 576 const uschar *deliver_domain   = NULL;
 577 uschar *deliver_domain_data    = NULL;
 578 const uschar *deliver_domain_orig = NULL;
 579 const uschar *deliver_domain_parent = NULL;
 580 BOOL    deliver_drop_privilege = FALSE;
 581 BOOL    deliver_firsttime      = FALSE;
 582 BOOL    deliver_force          = FALSE;
 583 BOOL    deliver_freeze         = FALSE;
 584 time_t  deliver_frozen_at      = 0;
 585 uschar *deliver_home           = NULL;
 586 const uschar *deliver_host     = NULL;
 587 const uschar *deliver_host_address = NULL;
 588 int     deliver_host_port      = 0;
 589 uschar *deliver_in_buffer      = NULL;
 590 ino_t   deliver_inode          = 0;
 591 uschar *deliver_localpart      = NULL;
 592 uschar *deliver_localpart_data = NULL;
 593 uschar *deliver_localpart_orig = NULL;
 594 uschar *deliver_localpart_parent = NULL;
 595 uschar *deliver_localpart_prefix = NULL;
 596 uschar *deliver_localpart_suffix = NULL;
 597 BOOL    deliver_force_thaw     = FALSE;
 598 BOOL    deliver_manual_thaw    = FALSE;
 599 uschar *deliver_out_buffer     = NULL;
 600 int     deliver_queue_load_max = -1;
 601 address_item  *deliver_recipients = NULL;
 602 uschar *deliver_selectstring   = NULL;
 603 BOOL    deliver_selectstring_regex = FALSE;
 604 uschar *deliver_selectstring_sender = NULL;
 605 BOOL    deliver_selectstring_sender_regex = FALSE;
 606 #ifdef WITH_OLD_DEMIME
 607 int     demime_errorlevel      = 0;
 608 int     demime_ok              = 0;
 609 uschar *demime_reason          = NULL;
 610 #endif
 611 BOOL    disable_callout_flush  = FALSE;
 612 BOOL    disable_delay_flush    = FALSE;
 613 #ifdef ENABLE_DISABLE_FSYNC
 614 BOOL    disable_fsync          = FALSE;
 615 #endif
 616 BOOL    disable_ipv6           = FALSE;
 617 BOOL    disable_logging        = FALSE;
 618
 619 #ifndef DISABLE_DKIM
 620 uschar *dkim_cur_signer          = NULL;
 621 uschar *dkim_signers             = NULL;
 622 uschar *dkim_signing_domain      = NULL;
 623 uschar *dkim_signing_selector    = NULL;
 624 uschar *dkim_verify_signers      = US"$dkim_signers";
 625 BOOL    dkim_collect_input       = FALSE;
 626 BOOL    dkim_disable_verify      = FALSE;
 627 #endif
 628 #ifdef EXPERIMENTAL_DMARC
 629 BOOL    dmarc_has_been_checked  = FALSE;
 630 uschar *dmarc_ar_header         = NULL;
 631 uschar *dmarc_domain_policy     = NULL;
 632 uschar *dmarc_forensic_sender   = NULL;
 633 uschar *dmarc_history_file      = NULL;
 634 uschar *dmarc_status            = NULL;
 635 uschar *dmarc_status_text       = NULL;
 636 uschar *dmarc_tld_file          = NULL;
 637 uschar *dmarc_used_domain       = NULL;
 638 BOOL    dmarc_disable_verify    = FALSE;
 639 BOOL    dmarc_enable_forensic   = FALSE;
 640 #endif
 641
 642 uschar *dns_again_means_nonexist = NULL;
 643 int     dns_csa_search_limit   = 5;
 644 BOOL    dns_csa_use_reverse    = TRUE;
 645 #ifdef EXPERIMENTAL_DANE
 646 int     dns_dane_ok            = -1;
 647 #endif
 648 uschar *dns_ipv4_lookup        = NULL;
 649 int     dns_retrans            = 0;
 650 int     dns_retry              = 0;
 651 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 652 int     dns_use_edns0          = -1; /* <0 = not coerced */
 653 uschar *dnslist_domain         = NULL;
 654 uschar *dnslist_matched        = NULL;
 655 uschar *dnslist_text           = NULL;
 656 uschar *dnslist_value          = NULL;
 657 tree_node *domainlist_anchor   = NULL;
 658 int     domainlist_count       = 0;
 659 BOOL    dont_deliver           = FALSE;
 660 BOOL    dot_ends               = TRUE;
 661 BOOL    drop_cr                = FALSE;         /* No longer used */
 662 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 663
 664 BOOL    enable_dollar_recipients = FALSE;
 665 BOOL    envelope_to_remove     = TRUE;
 666 int     errno_quota            = ERRNO_QUOTA;
 667 uschar *errors_copy            = NULL;
 668 int     error_handling         = ERRORS_SENDER;
 669 uschar *errors_reply_to        = NULL;
 670 int     errors_sender_rc       = EXIT_FAILURE;
 671 #ifdef EXPERIMENTAL_EVENT
 672 uschar *event_action             = NULL;        /* expansion for delivery events */
 673 uschar *event_data               = NULL;        /* auxilary data variable for event */
 674 int     event_defer_errno        = 0;
 675 const uschar *event_name         = NULL;        /* event name variable */
 676 #endif
 677
 678
 679 gid_t   exim_gid               = EXIM_GID;
 680 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 681 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 682                         "\0<---------------Space to patch exim_path->";
 683 uid_t   exim_uid               = EXIM_UID;
 684 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 685 int     expand_forbid          = 0;
 686 int     expand_nlength[EXPAND_MAXN+1];
 687 int     expand_nmax            = -1;
 688 uschar *expand_nstring[EXPAND_MAXN+1];
 689 BOOL    expand_string_forcedfail = FALSE;
 690 uschar *expand_string_message;
 691 BOOL    extract_addresses_remove_arguments = TRUE;
 692 uschar *extra_local_interfaces = NULL;
 693
 694 int     fake_response          = OK;
 695 uschar *fake_response_text     = US"Your message has been rejected but is "
 696                                    "being kept for evaluation.\nIf it was a "
 697                                    "legitimate message, it may still be "
 698                                    "delivered to the target recipient(s).";
 699 int     filter_n[FILTER_VARIABLE_COUNT];
 700 BOOL    filter_running         = FALSE;
 701 int     filter_sn[FILTER_VARIABLE_COUNT];
 702 int     filter_test            = FTEST_NONE;
 703 uschar *filter_test_sfile      = NULL;
 704 uschar *filter_test_ufile      = NULL;
 705 uschar *filter_thisaddress     = NULL;
 706 int     finduser_retries       = 0;
 707 #ifdef WITH_OLD_DEMIME
 708 uschar *found_extension        = NULL;
 709 #endif
 710 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 711 uschar *freeze_tell            = NULL;
 712 uschar *freeze_tell_config     = NULL;
 713 uschar *fudged_queue_times     = US"";
 714
 715 uschar *gecos_name             = NULL;
 716 uschar *gecos_pattern          = NULL;
 717 rewrite_rule  *global_rewrite_rules = NULL;
 718
 719 uschar *headers_charset        = US HEADERS_CHARSET;
 720 int     header_insert_maxlen   = 64 * 1024;
 721 header_line  *header_last      = NULL;
 722 header_line  *header_list      = NULL;
 723 int     header_maxsize         = HEADER_MAXSIZE;
 724 int     header_line_maxsize    = 0;
 725
 726 header_name header_names[] = {
 727   { US"bcc",            3, TRUE,  htype_bcc },
 728   { US"cc",             2, TRUE,  htype_cc },
 729   { US"date",           4, TRUE,  htype_date },
 730   { US"delivery-date", 13, FALSE, htype_delivery_date },
 731   { US"envelope-to",   11, FALSE, htype_envelope_to },
 732   { US"from",           4, TRUE,  htype_from },
 733   { US"message-id",    10, TRUE,  htype_id },
 734   { US"received",       8, FALSE, htype_received },
 735   { US"reply-to",       8, FALSE, htype_reply_to },
 736   { US"return-path",   11, FALSE, htype_return_path },
 737   { US"sender",         6, TRUE,  htype_sender },
 738   { US"subject",        7, FALSE, htype_subject },
 739   { US"to",             2, TRUE,  htype_to }
 740 };
 741
 742 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 743
 744 BOOL    header_rewritten       = FALSE;
 745 uschar *helo_accept_junk_hosts = NULL;
 746 uschar *helo_allow_chars       = US"";
 747 uschar *helo_lookup_domains    = US"@ : @[]";
 748 uschar *helo_try_verify_hosts  = NULL;
 749 BOOL    helo_verified          = FALSE;
 750 BOOL    helo_verify_failed     = FALSE;
 751 uschar *helo_verify_hosts      = NULL;
 752 const uschar *hex_digits       = CUS"0123456789abcdef";
 753 uschar *hold_domains           = NULL;
 754 BOOL    host_checking          = FALSE;
 755 BOOL    host_checking_callout  = FALSE;
 756 uschar *host_data              = NULL;
 757 BOOL    host_find_failed_syntax= FALSE;
 758 uschar *host_lookup            = NULL;
 759 BOOL    host_lookup_deferred   = FALSE;
 760 BOOL    host_lookup_failed     = FALSE;
 761 uschar *host_lookup_order      = US"bydns:byaddr";
 762 uschar *host_lookup_msg        = US"";
 763 int     host_number            = 0;
 764 uschar *host_number_string     = NULL;
 765 uschar *host_reject_connection = NULL;
 766 tree_node *hostlist_anchor     = NULL;
 767 int     hostlist_count         = 0;
 768 uschar *hosts_treat_as_local   = NULL;
 769 uschar *hosts_connection_nolog = NULL;
 770
 771 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 772 BOOL    ignore_fromline_local  = FALSE;
 773 uschar *ignore_fromline_hosts  = NULL;
 774 BOOL    inetd_wait_mode        = FALSE;
 775 int     inetd_wait_timeout     = -1;
 776 uschar *interface_address      = NULL;
 777 int     interface_port         = -1;
 778 BOOL    is_inetd               = FALSE;
 779 uschar *iterate_item           = NULL;
 780
 781 int     journal_fd             = -1;
 782
 783 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 784
 785 uschar *eldap_dn               = NULL;
 786 int     load_average           = -2;
 787 BOOL    local_error_message    = FALSE;
 788 BOOL    local_from_check       = TRUE;
 789 uschar *local_from_prefix      = NULL;
 790 uschar *local_from_suffix      = NULL;
 791
 792 #if HAVE_IPV6
 793 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 794 #else
 795 uschar *local_interfaces       = US"0.0.0.0";
 796 #endif
 797
 798 uschar *local_scan_data        = NULL;
 799 int     local_scan_timeout     = 5*60;
 800 BOOL    local_sender_retain    = FALSE;
 801 gid_t   local_user_gid         = (gid_t)(-1);
 802 uid_t   local_user_uid         = (uid_t)(-1);
 803
 804 tree_node *localpartlist_anchor= NULL;
 805 int     localpartlist_count    = 0;
 806 uschar *log_buffer             = NULL;
 807 unsigned int log_extra_selector = LX_default;
 808 uschar *log_file_path          = US LOG_FILE_PATH
 809                            "\0<--------------Space to patch log_file_path->";
 810
 811 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 812 are the ones that get put into log_write_selector. They can be used in calls to
 813 log_write() to test for the bit. The options with LX_xxx identifiers have
 814 values greater than 0x80000000 and are put into log_extra_selector (without the
 815 top bit). They are never used in calls to log_write(), but are tested
 816 independently. This separation became necessary when the number of log
 817 selectors was getting close to filling a 32-bit word. */
 818
 819 /* Note that this list must be in alphabetical order. */
 820
 821 bit_table log_options[]        = {
 822   { US"8bitmime",                     LX_8bitmime },
 823   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 824   { US"address_rewrite",              L_address_rewrite },
 825   { US"all",                          L_all },
 826   { US"all_parents",                  L_all_parents },
 827   { US"arguments",                    LX_arguments },
 828   { US"connection_reject",            L_connection_reject },
 829   { US"delay_delivery",               L_delay_delivery },
 830   { US"deliver_time",                 LX_deliver_time },
 831   { US"delivery_size",                LX_delivery_size },
 832   { US"dnslist_defer",                L_dnslist_defer },
 833   { US"etrn",                         L_etrn },
 834   { US"host_lookup_failed",           L_host_lookup_failed },
 835   { US"ident_timeout",                LX_ident_timeout },
 836   { US"incoming_interface",           LX_incoming_interface },
 837   { US"incoming_port",                LX_incoming_port },
 838   { US"lost_incoming_connection",     L_lost_incoming_connection },
 839   { US"outgoing_port",                LX_outgoing_port },
 840   { US"pid",                          LX_pid },
 841 #ifdef EXPERIMENTAL_PROXY
 842   { US"proxy",                        LX_proxy },
 843 #endif
 844   { US"queue_run",                    L_queue_run },
 845   { US"queue_time",                   LX_queue_time },
 846   { US"queue_time_overall",           LX_queue_time_overall },
 847   { US"received_recipients",          LX_received_recipients },
 848   { US"received_sender",              LX_received_sender },
 849   { US"rejected_header",              LX_rejected_header },
 850   { US"rejected_headers",             LX_rejected_header },
 851   { US"retry_defer",                  L_retry_defer },
 852   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 853   { US"sender_on_delivery",           LX_sender_on_delivery },
 854   { US"sender_verify_fail",           LX_sender_verify_fail },
 855   { US"size_reject",                  L_size_reject },
 856   { US"skip_delivery",                L_skip_delivery },
 857   { US"smtp_confirmation",            LX_smtp_confirmation },
 858   { US"smtp_connection",              L_smtp_connection },
 859   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 860   { US"smtp_mailauth",                LX_smtp_mailauth },
 861   { US"smtp_no_mail",                 LX_smtp_no_mail },
 862   { US"smtp_protocol_error",          L_smtp_protocol_error },
 863   { US"smtp_syntax_error",            L_smtp_syntax_error },
 864   { US"subject",                      LX_subject },
 865   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 866   { US"tls_cipher",                   LX_tls_cipher },
 867   { US"tls_peerdn",                   LX_tls_peerdn },
 868   { US"tls_sni",                      LX_tls_sni },
 869   { US"unknown_in_list",              LX_unknown_in_list }
 870 };
 871
 872 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 873 int     log_reject_target      = 0;
 874 uschar *log_selector_string    = NULL;
 875 FILE   *log_stderr             = NULL;
 876 BOOL    log_testing_mode       = FALSE;
 877 BOOL    log_timezone           = FALSE;
 878 unsigned int log_write_selector= L_default;
 879 uschar *login_sender_address   = NULL;
 880 uschar *lookup_dnssec_authenticated = NULL;
 881 int     lookup_open_max        = 25;
 882 uschar *lookup_value           = NULL;
 883
 884 macro_item  *macros            = NULL;
 885 uschar *mailstore_basename     = NULL;
 886 #ifdef WITH_CONTENT_SCAN
 887 uschar *malware_name           = NULL;  /* Virus Name */
 888 #endif
 889 int     max_received_linelength= 0;
 890 int     max_username_length    = 0;
 891 int     message_age            = 0;
 892 uschar *message_body           = NULL;
 893 uschar *message_body_end       = NULL;
 894 BOOL    message_body_newlines  = FALSE;
 895 int     message_body_size      = 0;
 896 int     message_body_visible   = 500;
 897 int     message_ended          = END_NOTSTARTED;
 898 uschar *message_headers        = NULL;
 899 uschar *message_id;
 900 uschar *message_id_domain      = NULL;
 901 uschar *message_id_text        = NULL;
 902 struct timeval message_id_tv   = { 0, 0 };
 903 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 904 uschar *message_id_external;
 905 int     message_linecount      = 0;
 906 BOOL    message_logs           = TRUE;
 907 int     message_size           = 0;
 908 uschar *message_size_limit     = US"50M";
 909 #ifdef EXPERIMENTAL_INTERNATIONAL
 910 BOOL    message_smtputf8       = FALSE;
 911 #endif
 912 uschar  message_subdir[2]      = { 0, 0 };
 913 uschar *message_reference      = NULL;
 914
 915 /* MIME ACL expandables */
 916 #ifdef WITH_CONTENT_SCAN
 917 int     mime_anomaly_level     = 0;
 918 const uschar *mime_anomaly_text      = NULL;
 919 uschar *mime_boundary          = NULL;
 920 uschar *mime_charset           = NULL;
 921 uschar *mime_content_description = NULL;
 922 uschar *mime_content_disposition = NULL;
 923 uschar *mime_content_id        = NULL;
 924 unsigned int mime_content_size = 0;
 925 uschar *mime_content_transfer_encoding = NULL;
 926 uschar *mime_content_type      = NULL;
 927 uschar *mime_decoded_filename  = NULL;
 928 uschar *mime_filename          = NULL;
 929 int     mime_is_multipart      = 0;
 930 int     mime_is_coverletter    = 0;
 931 int     mime_is_rfc822         = 0;
 932 int     mime_part_count        = -1;
 933 #endif
 934
 935 BOOL    mua_wrapper            = FALSE;
 936
 937 uid_t  *never_users            = NULL;
 938 #ifdef WITH_CONTENT_SCAN
 939 BOOL    no_mbox_unspool        = FALSE;
 940 #endif
 941 BOOL    no_multiline_responses = FALSE;
 942
 943 uid_t   original_euid;
 944 gid_t   originator_gid;
 945 uschar *originator_login       = NULL;
 946 uschar *originator_name        = NULL;
 947 uid_t   originator_uid;
 948 uschar *override_local_interfaces = NULL;
 949 uschar *override_pid_file_path = NULL;
 950
 951 BOOL    parse_allow_group      = FALSE;
 952 BOOL    parse_found_group      = FALSE;
 953 uschar *percent_hack_domains   = NULL;
 954 uschar *pid_file_path          = US PID_FILE_PATH
 955                            "\0<--------------Space to patch pid_file_path->";
 956 BOOL    pipelining_enable      = TRUE;
 957 uschar *pipelining_advertise_hosts = US"*";
 958 BOOL    preserve_message_logs  = FALSE;
 959 uschar *primary_hostname       = NULL;
 960 BOOL    print_topbitchars      = FALSE;
 961 uschar  process_info[PROCESS_INFO_SIZE];
 962 int     process_info_len       = 0;
 963 uschar *process_log_path       = NULL;
 964 BOOL    prod_requires_admin    = TRUE;
 965
 966 #ifdef EXPERIMENTAL_PROXY
 967 uschar *proxy_host_address     = US"";
 968 int     proxy_host_port        = 0;
 969 uschar *proxy_required_hosts   = US"";
 970 BOOL    proxy_session          = FALSE;
 971 BOOL    proxy_session_failed   = FALSE;
 972 uschar *proxy_target_address   = US"";
 973 int     proxy_target_port      = 0;
 974 #endif
 975
 976 uschar *prvscheck_address      = NULL;
 977 uschar *prvscheck_keynum       = NULL;
 978 uschar *prvscheck_result       = NULL;
 979
 980
 981 const uschar *qualify_domain_recipient = NULL;
 982 uschar *qualify_domain_sender  = NULL;
 983 BOOL    queue_2stage           = FALSE;
 984 uschar *queue_domains          = NULL;
 985 int     queue_interval         = -1;
 986 BOOL    queue_list_requires_admin = TRUE;
 987 BOOL    queue_only             = FALSE;
 988 uschar *queue_only_file        = NULL;
 989 int     queue_only_load        = -1;
 990 BOOL    queue_only_load_latch  = TRUE;
 991 BOOL    queue_only_override    = TRUE;
 992 BOOL    queue_only_policy      = FALSE;
 993 BOOL    queue_run_first_delivery = FALSE;
 994 BOOL    queue_run_force        = FALSE;
 995 BOOL    queue_run_in_order     = FALSE;
 996 BOOL    queue_run_local        = FALSE;
 997 int     queue_run_max          = 5;
 998 pid_t   queue_run_pid          = (pid_t)0;
 999 int     queue_run_pipe         = -1;
1000 BOOL    queue_running          = FALSE;
1001 BOOL    queue_smtp             = FALSE;
1002 uschar *queue_smtp_domains     = NULL;
1003
1004 unsigned int random_seed       = 0;
1005 tree_node *ratelimiters_cmd    = NULL;
1006 tree_node *ratelimiters_conn   = NULL;
1007 tree_node *ratelimiters_mail   = NULL;
1008 uschar *raw_active_hostname    = NULL;
1009 uschar *raw_sender             = NULL;
1010 uschar **raw_recipients        = NULL;
1011 int     raw_recipients_count   = 0;
1012
1013 int     rcpt_count             = 0;
1014 int     rcpt_fail_count        = 0;
1015 int     rcpt_defer_count       = 0;
1016 gid_t   real_gid;
1017 uid_t   real_uid;
1018 BOOL    really_exim            = TRUE;
1019 BOOL    receive_call_bombout   = FALSE;
1020 int     receive_linecount      = 0;
1021 int     receive_messagecount   = 0;
1022 int     receive_timeout        = 0;
1023 int     received_count         = 0;
1024 uschar *received_for           = NULL;
1025
1026 /*  This is the default text for Received headers generated by Exim. The
1027 date  will be automatically added on the end. */
1028
1029 uschar *received_header_text   = US
1030      "Received: "
1031      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1032      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1033      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1034      "by $primary_hostname "
1035      "${if def:received_protocol {with $received_protocol}} "
1036      #ifdef SUPPORT_TLS
1037      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1038      #endif
1039      "(Exim $version_number)\n\t"
1040      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1041      "id $message_exim_id"
1042      "${if def:received_for {\n\tfor $received_for}}"
1043      "\0<---------------Space to patch received_header_text->";
1044
1045 int     received_headers_max   = 30;
1046 uschar *received_protocol      = NULL;
1047 int     received_time          = 0;
1048 uschar *recipient_data         = NULL;
1049 uschar *recipient_unqualified_hosts = NULL;
1050 uschar *recipient_verify_failure = NULL;
1051 int     recipients_count       = 0;
1052 BOOL    recipients_discarded   = FALSE;
1053 recipient_item  *recipients_list = NULL;
1054 int     recipients_list_max    = 0;
1055 int     recipients_max         = 0;
1056 BOOL    recipients_max_reject  = FALSE;
1057 const pcre *regex_AUTH         = NULL;
1058 const pcre *regex_check_dns_names = NULL;
1059 const pcre *regex_From         = NULL;
1060 const pcre *regex_IGNOREQUOTA  = NULL;
1061 const pcre *regex_PIPELINING   = NULL;
1062 const pcre *regex_SIZE         = NULL;
1063 const pcre *regex_smtp_code    = NULL;
1064 const pcre *regex_ismsgid      = NULL;
1065 #ifdef WHITELIST_D_MACROS
1066 const pcre *regex_whitelisted_macro = NULL;
1067 #endif
1068 #ifdef WITH_CONTENT_SCAN
1069 uschar *regex_match_string     = NULL;
1070 #endif
1071 int     remote_delivery_count  = 0;
1072 int     remote_max_parallel    = 2;
1073 uschar *remote_sort_domains    = NULL;
1074 int     retry_data_expire      = 7*24*60*60;
1075 int     retry_interval_max     = 24*60*60;
1076 int     retry_maximum_timeout  = 0;        /* set from retry config */
1077 retry_config  *retries         = NULL;
1078 uschar *return_path            = NULL;
1079 BOOL    return_path_remove     = TRUE;
1080 int     rewrite_existflags     = 0;
1081 uschar *rfc1413_hosts          = US"@[]";
1082 int     rfc1413_query_timeout  = 0;
1083 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1084 uid_t   root_gid               = ROOT_GID;
1085 uid_t   root_uid               = ROOT_UID;
1086
1087 router_instance  *routers  = NULL;
1088 router_instance  router_defaults = {
1089     NULL,                      /* chain pointer */
1090     NULL,                      /* name */
1091     NULL,                      /* info */
1092     NULL,                      /* private options block pointer */
1093     NULL,                      /* driver name */
1094
1095     NULL,                      /* address_data */
1096 #ifdef EXPERIMENTAL_BRIGHTMAIL
1097     NULL,                      /* bmi_rule */
1098 #endif
1099     NULL,                      /* cannot_route_message */
1100     NULL,                      /* condition */
1101     NULL,                      /* current_directory */
1102     NULL,                      /* debug_string */
1103     NULL,                      /* domains */
1104     NULL,                      /* errors_to */
1105     NULL,                      /* expand_gid */
1106     NULL,                      /* expand_uid */
1107     NULL,                      /* expand_more */
1108     NULL,                      /* expand_unseen */
1109     NULL,                      /* extra_headers */
1110     NULL,                      /* fallback_hosts */
1111     NULL,                      /* home_directory */
1112     NULL,                      /* ignore_target_hosts */
1113     NULL,                      /* local_parts */
1114     NULL,                      /* pass_router_name */
1115     NULL,                      /* prefix */
1116     NULL,                      /* redirect_router_name */
1117     NULL,                      /* remove_headers */
1118     NULL,                      /* require_files */
1119     NULL,                      /* router_home_directory */
1120     US"freeze",                /* self */
1121     NULL,                      /* senders */
1122     NULL,                      /* suffix */
1123     NULL,                      /* translate_ip_address */
1124     NULL,                      /* transport_name */
1125
1126     TRUE,                      /* address_test */
1127 #ifdef EXPERIMENTAL_BRIGHTMAIL
1128     FALSE,                     /* bmi_deliver_alternate */
1129     FALSE,                     /* bmi_deliver_default */
1130     FALSE,                     /* bmi_dont_deliver */
1131 #endif
1132     TRUE,                      /* expn */
1133     FALSE,                     /* caseful_local_part */
1134     FALSE,                     /* check_local_user */
1135     FALSE,                     /* disable_logging */
1136     FALSE,                     /* fail_verify_recipient */
1137     FALSE,                     /* fail_verify_sender */
1138     FALSE,                     /* gid_set */
1139     FALSE,                     /* initgroups */
1140     TRUE_UNSET,                /* log_as_local */
1141     TRUE,                      /* more */
1142     FALSE,                     /* pass_on_timeout */
1143     FALSE,                     /* prefix_optional */
1144     TRUE,                      /* repeat_use */
1145     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1146     FALSE,                     /* same_domain_copy_routing */
1147     FALSE,                     /* self_rewrite */
1148     FALSE,                     /* suffix_optional */
1149     FALSE,                     /* verify_only */
1150     TRUE,                      /* verify_recipient */
1151     TRUE,                      /* verify_sender */
1152     FALSE,                     /* uid_set */
1153     FALSE,                     /* unseen */
1154     FALSE,                     /* dsn_lasthop */
1155
1156     self_freeze,               /* self_code */
1157     (uid_t)(-1),               /* uid */
1158     (gid_t)(-1),               /* gid */
1159
1160     NULL,                      /* fallback_hostlist */
1161     NULL,                      /* transport instance */
1162     NULL,                      /* pass_router */
1163     NULL                       /* redirect_router */
1164 };
1165
1166 uschar *router_name            = NULL;
1167
1168 ip_address_item *running_interfaces = NULL;
1169 BOOL    running_in_test_harness = FALSE;
1170
1171 /* This is a weird one. The following string gets patched in the binary by the
1172 script that sets up a copy of Exim for running in the test harness. It seems
1173 that compilers are now clever, and share constant strings if they can.
1174 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1175 make use of the end of this string in order to save space. So the patching then
1176 wrecks this. We defeat this optimization by adding some additional characters
1177 onto the end of the string. */
1178
1179 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1180
1181 int     runrc                  = 0;
1182
1183 uschar *search_error_message   = NULL;
1184 BOOL    search_find_defer      = FALSE;
1185 uschar *self_hostname          = NULL;
1186 uschar *sender_address         = NULL;
1187 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1188 uschar *sender_address_data    = NULL;
1189 BOOL    sender_address_forced  = FALSE;
1190 uschar *sender_address_unrewritten = NULL;
1191 uschar *sender_data            = NULL;
1192 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1193 uschar *sender_fullhost        = NULL;
1194 uschar *sender_helo_name       = NULL;
1195 uschar **sender_host_aliases   = &no_aliases;
1196 uschar *sender_host_address    = NULL;
1197 uschar *sender_host_authenticated = NULL;
1198 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1199 BOOL    sender_host_dnssec     = FALSE;
1200 uschar *sender_host_name       = NULL;
1201 int     sender_host_port       = 0;
1202 BOOL    sender_host_notsocket  = FALSE;
1203 BOOL    sender_host_unknown    = FALSE;
1204 uschar *sender_ident           = NULL;
1205 BOOL    sender_local           = FALSE;
1206 BOOL    sender_name_forced     = FALSE;
1207 uschar *sender_rate            = NULL;
1208 uschar *sender_rate_limit      = NULL;
1209 uschar *sender_rate_period     = NULL;
1210 uschar *sender_rcvhost         = NULL;
1211 BOOL    sender_set_untrusted   = FALSE;
1212 uschar *sender_unqualified_hosts = NULL;
1213 uschar *sender_verify_failure = NULL;
1214 address_item *sender_verified_list  = NULL;
1215 address_item *sender_verified_failed = NULL;
1216 int     sender_verified_rc     = -1;
1217 BOOL    sender_verified_responded = FALSE;
1218 uschar *sending_ip_address     = NULL;
1219 int     sending_port           = -1;
1220 SIGNAL_BOOL sigalrm_seen       = FALSE;
1221 uschar **sighup_argv           = NULL;
1222 int     smtp_accept_count      = 0;
1223 BOOL    smtp_accept_keepalive  = TRUE;
1224 int     smtp_accept_max        = 20;
1225 int     smtp_accept_max_nonmail= 10;
1226 uschar *smtp_accept_max_nonmail_hosts = US"*";
1227 int     smtp_accept_max_per_connection = 1000;
1228 uschar *smtp_accept_max_per_host = NULL;
1229 int     smtp_accept_queue      = 0;
1230 int     smtp_accept_queue_per_connection = 10;
1231 int     smtp_accept_reserve    = 0;
1232 uschar *smtp_active_hostname   = NULL;
1233 BOOL    smtp_authenticated     = FALSE;
1234 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1235                              "Exim $version_number $tod_full"
1236                              "\0<---------------Space to patch smtp_banner->";
1237 BOOL    smtp_batched_input     = FALSE;
1238 BOOL    smtp_check_spool_space = TRUE;
1239 int     smtp_ch_index          = 0;
1240 uschar *smtp_cmd_argument      = NULL;
1241 uschar *smtp_cmd_buffer        = NULL;
1242 time_t  smtp_connection_start  = 0;
1243 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1244 int     smtp_connect_backlog   = 20;
1245 double  smtp_delay_mail        = 0.0;
1246 double  smtp_delay_rcpt        = 0.0;
1247 BOOL    smtp_enforce_sync      = TRUE;
1248 FILE   *smtp_in                = NULL;
1249 BOOL    smtp_input             = FALSE;
1250 int     smtp_load_reserve      = -1;
1251 int     smtp_mailcmd_count     = 0;
1252 FILE   *smtp_out               = NULL;
1253 uschar *smtp_etrn_command      = NULL;
1254 BOOL    smtp_etrn_serialize    = TRUE;
1255 int     smtp_max_synprot_errors= 3;
1256 int     smtp_max_unknown_commands = 3;
1257 uschar *smtp_notquit_reason    = NULL;
1258 uschar *smtp_ratelimit_hosts   = NULL;
1259 uschar *smtp_ratelimit_mail    = NULL;
1260 uschar *smtp_ratelimit_rcpt    = NULL;
1261 uschar *smtp_read_error        = US"";
1262 int     smtp_receive_timeout   = 5*60;
1263 uschar *smtp_receive_timeout_s = NULL;
1264 uschar *smtp_reserve_hosts     = NULL;
1265 BOOL    smtp_return_error_details = FALSE;
1266 int     smtp_rlm_base          = 0;
1267 double  smtp_rlm_factor        = 0.0;
1268 int     smtp_rlm_limit         = 0;
1269 int     smtp_rlm_threshold     = INT_MAX;
1270 int     smtp_rlr_base          = 0;
1271 double  smtp_rlr_factor        = 0.0;
1272 int     smtp_rlr_limit         = 0;
1273 int     smtp_rlr_threshold     = INT_MAX;
1274 BOOL    smtp_use_pipelining    = FALSE;
1275 BOOL    smtp_use_size          = FALSE;
1276
1277 #ifdef WITH_CONTENT_SCAN
1278 uschar *spamd_address          = US"127.0.0.1 783";
1279 uschar *spam_bar               = NULL;
1280 uschar *spam_report            = NULL;
1281 uschar *spam_action            = NULL;
1282 uschar *spam_score             = NULL;
1283 uschar *spam_score_int         = NULL;
1284 #endif
1285 #ifdef EXPERIMENTAL_SPF
1286 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1287 uschar *spf_header_comment     = NULL;
1288 uschar *spf_received           = NULL;
1289 uschar *spf_result             = NULL;
1290 uschar *spf_smtp_comment       = NULL;
1291 #endif
1292
1293 BOOL    split_spool_directory  = FALSE;
1294 uschar *spool_directory        = US SPOOL_DIRECTORY
1295                            "\0<--------------Space to patch spool_directory->";
1296 #ifdef EXPERIMENTAL_SRS
1297 uschar *srs_config             = NULL;
1298 uschar *srs_db_address         = NULL;
1299 uschar *srs_db_key             = NULL;
1300 int     srs_hashlength         = 6;
1301 int     srs_hashmin            = -1;
1302 int     srs_maxage             = 31;
1303 uschar *srs_orig_recipient     = NULL;
1304 uschar *srs_orig_sender        = NULL;
1305 uschar *srs_recipient          = NULL;
1306 uschar *srs_secrets            = NULL;
1307 uschar *srs_status             = NULL;
1308 BOOL    srs_usehash            = TRUE;
1309 BOOL    srs_usetimestamp       = TRUE;
1310 #endif
1311 BOOL    strict_acl_vars        = FALSE;
1312 int     string_datestamp_offset= -1;
1313 int     string_datestamp_length= 0;
1314 int     string_datestamp_type  = -1;
1315 BOOL    strip_excess_angle_brackets = FALSE;
1316 BOOL    strip_trailing_dot     = FALSE;
1317 uschar *submission_domain      = NULL;
1318 BOOL    submission_mode        = FALSE;
1319 uschar *submission_name        = NULL;
1320 BOOL    suppress_local_fixups  = FALSE;
1321 BOOL    suppress_local_fixups_default = FALSE;
1322 BOOL    synchronous_delivery   = FALSE;
1323 BOOL    syslog_duplication     = TRUE;
1324 int     syslog_facility        = LOG_MAIL;
1325 uschar *syslog_processname     = US"exim";
1326 BOOL    syslog_timestamp       = TRUE;
1327 uschar *system_filter          = NULL;
1328
1329 uschar *system_filter_directory_transport = NULL;
1330 uschar *system_filter_file_transport = NULL;
1331 uschar *system_filter_pipe_transport = NULL;
1332 uschar *system_filter_reply_transport = NULL;
1333
1334 gid_t   system_filter_gid      = 0;
1335 BOOL    system_filter_gid_set  = FALSE;
1336 uid_t   system_filter_uid      = (uid_t)-1;
1337 BOOL    system_filter_uid_set  = FALSE;
1338 BOOL    system_filtering       = FALSE;
1339
1340 BOOL    tcp_nodelay            = TRUE;
1341 #ifdef USE_TCP_WRAPPERS
1342 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1343 #endif
1344 int     test_harness_load_avg  = 0;
1345 int     thismessage_size_limit = 0;
1346 int     timeout_frozen_after   = 0;
1347 BOOL    timestamps_utc         = FALSE;
1348
1349 transport_instance  *transports = NULL;
1350
1351 transport_instance  transport_defaults = {
1352     NULL,                     /* chain pointer */
1353     NULL,                     /* name */
1354     NULL,                     /* info */
1355     NULL,                     /* private options block pointer */
1356     NULL,                     /* driver name */
1357     NULL,                     /* setup entry point */
1358     1,                        /* batch_max */
1359     NULL,                     /* batch_id */
1360     NULL,                     /* home_dir */
1361     NULL,                     /* current_dir */
1362     NULL,                     /* expand-multi-domain */
1363     TRUE,                     /* multi-domain */
1364     FALSE,                    /* overrides_hosts */
1365     100,                      /* max_addresses */
1366     500,                      /* connection_max_messages */
1367     FALSE,                    /* deliver_as_creator */
1368     FALSE,                    /* disable_logging */
1369     FALSE,                    /* initgroups */
1370     FALSE,                    /* uid_set */
1371     FALSE,                    /* gid_set */
1372     (uid_t)(-1),              /* uid */
1373     (gid_t)(-1),              /* gid */
1374     NULL,                     /* expand_uid */
1375     NULL,                     /* expand_gid */
1376     NULL,                     /* warn_message */
1377     NULL,                     /* shadow */
1378     NULL,                     /* shadow_condition */
1379     NULL,                     /* filter_command */
1380     NULL,                     /* add_headers */
1381     NULL,                     /* remove_headers */
1382     NULL,                     /* return_path */
1383     NULL,                     /* debug_string */
1384     NULL,                     /* message_size_limit */
1385     NULL,                     /* headers_rewrite */
1386     NULL,                     /* rewrite_rules */
1387     0,                        /* rewrite_existflags */
1388     300,                      /* filter_timeout */
1389     FALSE,                    /* body_only */
1390     FALSE,                    /* delivery_date_add */
1391     FALSE,                    /* envelope_to_add */
1392     FALSE,                    /* headers_only */
1393     FALSE,                    /* rcpt_include_affixes */
1394     FALSE,                    /* return_path_add */
1395     FALSE,                    /* return_output */
1396     FALSE,                    /* return_fail_output */
1397     FALSE,                    /* log_output */
1398     FALSE,                    /* log_fail_output */
1399     FALSE,                    /* log_defer_output */
1400     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1401                                  1 nor 0 so can detect unset */
1402 #ifdef EXPERIMENTAL_EVENT
1403    ,NULL                      /* event_action */
1404 #endif
1405 };
1406
1407 int     transport_count;
1408 uschar *transport_name          = NULL;
1409 int     transport_newlines;
1410 const uschar **transport_filter_argv  = NULL;
1411 int     transport_filter_timeout;
1412 BOOL    transport_filter_timed_out = FALSE;
1413 int     transport_write_timeout= 0;
1414
1415 tree_node  *tree_dns_fails     = NULL;
1416 tree_node  *tree_duplicates    = NULL;
1417 tree_node  *tree_nonrecipients = NULL;
1418 tree_node  *tree_unusable      = NULL;
1419
1420 BOOL    trusted_caller         = FALSE;
1421 BOOL    trusted_config         = TRUE;
1422 gid_t  *trusted_groups         = NULL;
1423 uid_t  *trusted_users          = NULL;
1424 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1425
1426 uschar *unknown_login          = NULL;
1427 uschar *unknown_username       = NULL;
1428 uschar *untrusted_set_sender   = NULL;
1429
1430 /*  A regex for matching a "From_" line in an incoming message, in the form
1431
1432     From ph10 Fri Jan  5 12:35 GMT 1996
1433
1434 which  the "mail" commands send to the MTA (undocumented, of course), or in
1435 the  form
1436
1437     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1438
1439 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1440 Because  of variations in time formats, just match up to the minutes. That
1441 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1442 so  just require one digit for hours and minutes. The weekday is also absent
1443 in  some forms. */
1444
1445 uschar *uucp_from_pattern      = US
1446    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1447    "(?:"                                          /* Non-extracting bracket */
1448    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1449    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1450    ")"                                            /* End alternation */
1451    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1452
1453 uschar *uucp_from_sender       = US"$1";
1454
1455 uschar *verify_mode            = NULL;
1456 uschar *version_copyright      =
1457  US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1458    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1459 uschar *version_date           = US"?";
1460 uschar *version_cnumber        = US"????";
1461 uschar *version_string         = US"?";
1462
1463 uschar *warn_message_file      = NULL;
1464 int     warning_count          = 0;
1465 uschar *warnmsg_delay          = NULL;
1466 uschar *warnmsg_recipients     = NULL;
1467 BOOL    write_rejectlog        = TRUE;
1468
1469
1470 /*  End of globals.c */