src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2015 */
   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 uschar *tls_eccurve            = US"prime256v1";
 160 #ifndef DISABLE_OCSP
 161 uschar *tls_ocsp_file          = NULL;
 162 #endif
 163 BOOL    tls_offered            = FALSE;
 164 uschar *tls_privatekey         = NULL;
 165 BOOL    tls_remember_esmtp     = FALSE;
 166 uschar *tls_require_ciphers    = NULL;
 167 uschar *tls_try_verify_hosts   = NULL;
 168 uschar *tls_verify_certificates= US"system";
 169 uschar *tls_verify_hosts       = NULL;
 170 #endif
 171
 172 #ifndef DISABLE_PRDR
 173 /* Per Recipient Data Response variables */
 174 BOOL    prdr_enable            = FALSE;
 175 BOOL    prdr_requested         = FALSE;
 176 const pcre *regex_PRDR         = NULL;
 177 #endif
 178
 179 #ifdef EXPERIMENTAL_INTERNATIONAL
 180 const pcre *regex_UTF8         = NULL;
 181 #endif
 182
 183 /* Input-reading functions for messages, so we can use special ones for
 184 incoming TCP/IP. The defaults use stdin. We never need these for any
 185 stand-alone tests. */
 186
 187 #ifndef STAND_ALONE
 188 int (*receive_getc)(void)      = stdin_getc;
 189 int (*receive_ungetc)(int)     = stdin_ungetc;
 190 int (*receive_feof)(void)      = stdin_feof;
 191 int (*receive_ferror)(void)    = stdin_ferror;
 192 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 193 #endif
 194
 195
 196 /* List of per-address expansion variables for clearing and saving/restoring
 197 when verifying one address while routing/verifying another. We have to have
 198 the size explicit, because it is referenced from more than one module. */
 199
 200 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 201   CUSS &deliver_address_data,
 202   CUSS &deliver_domain,
 203   CUSS &deliver_domain_data,
 204   CUSS &deliver_domain_orig,
 205   CUSS &deliver_domain_parent,
 206   CUSS &deliver_localpart,
 207   CUSS &deliver_localpart_data,
 208   CUSS &deliver_localpart_orig,
 209   CUSS &deliver_localpart_parent,
 210   CUSS &deliver_localpart_prefix,
 211   CUSS &deliver_localpart_suffix,
 212   CUSS (uschar **)(&deliver_recipients),
 213   CUSS &deliver_host,
 214   CUSS &deliver_home,
 215   CUSS &address_file,
 216   CUSS &address_pipe,
 217   CUSS &self_hostname,
 218   NULL };
 219
 220 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 221
 222 /* General global variables */
 223
 224 header_line *acl_added_headers = NULL;
 225 tree_node *acl_anchor          = NULL;
 226 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 227                                   NULL, NULL, NULL, NULL};
 228 int     acl_narg               = 0;
 229
 230 uschar *acl_not_smtp           = NULL;
 231 #ifdef WITH_CONTENT_SCAN
 232 uschar *acl_not_smtp_mime      = NULL;
 233 #endif
 234 uschar *acl_not_smtp_start     = NULL;
 235 uschar *acl_removed_headers    = NULL;
 236 uschar *acl_smtp_auth          = NULL;
 237 uschar *acl_smtp_connect       = NULL;
 238 uschar *acl_smtp_data          = NULL;
 239 #ifndef DISABLE_PRDR
 240 uschar *acl_smtp_data_prdr     = US"accept";
 241 #endif
 242 #ifndef DISABLE_DKIM
 243 uschar *acl_smtp_dkim          = NULL;
 244 #endif
 245 uschar *acl_smtp_etrn          = NULL;
 246 uschar *acl_smtp_expn          = NULL;
 247 uschar *acl_smtp_helo          = NULL;
 248 uschar *acl_smtp_mail          = NULL;
 249 uschar *acl_smtp_mailauth      = NULL;
 250 #ifdef WITH_CONTENT_SCAN
 251 uschar *acl_smtp_mime          = NULL;
 252 #endif
 253 uschar *acl_smtp_notquit       = NULL;
 254 uschar *acl_smtp_predata       = NULL;
 255 uschar *acl_smtp_quit          = NULL;
 256 uschar *acl_smtp_rcpt          = NULL;
 257 uschar *acl_smtp_starttls      = NULL;
 258 uschar *acl_smtp_vrfy          = NULL;
 259
 260 BOOL    acl_temp_details       = FALSE;
 261 tree_node *acl_var_c           = NULL;
 262 tree_node *acl_var_m           = NULL;
 263 uschar *acl_verify_message     = NULL;
 264 string_item *acl_warn_logged   = NULL;
 265
 266 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 267 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 268
 269 uschar *acl_wherenames[]       = { US"RCPT",
 270                                    US"MAIL",
 271                                    US"PREDATA",
 272                                    US"MIME",
 273                                    US"DKIM",
 274                                    US"DATA",
 275 #ifndef DISABLE_PRDR
 276                                    US"PRDR",
 277 #endif
 278                                    US"non-SMTP",
 279                                    US"AUTH",
 280                                    US"connection",
 281                                    US"ETRN",
 282                                    US"EXPN",
 283                                    US"EHLO or HELO",
 284                                    US"MAILAUTH",
 285                                    US"non-SMTP-start",
 286                                    US"NOTQUIT",
 287                                    US"QUIT",
 288                                    US"STARTTLS",
 289                                    US"VRFY",
 290                                    US"delivery",
 291                                    US"unknown"
 292                                  };
 293
 294 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 295                                    US"550",     /* MAIL */
 296                                    US"550",     /* PREDATA */
 297                                    US"550",     /* MIME */
 298                                    US"550",     /* DKIM */
 299                                    US"550",     /* DATA */
 300 #ifndef DISABLE_PRDR
 301                                    US"550",    /* RCPT PRDR */
 302 #endif
 303                                    US"0",       /* not SMTP; not relevant */
 304                                    US"503",     /* AUTH */
 305                                    US"550",     /* connect */
 306                                    US"458",     /* ETRN */
 307                                    US"550",     /* EXPN */
 308                                    US"550",     /* HELO/EHLO */
 309                                    US"0",       /* MAILAUTH; not relevant */
 310                                    US"0",       /* not SMTP; not relevant */
 311                                    US"0",       /* NOTQUIT; not relevant */
 312                                    US"0",       /* QUIT; not relevant */
 313                                    US"550",     /* STARTTLS */
 314                                    US"252",     /* VRFY */
 315                                    US"0",       /* delivery; not relevant */
 316                                    US"0"        /* unknown; not relevant */
 317                                  };
 318
 319 BOOL    active_local_from_check = FALSE;
 320 BOOL    active_local_sender_retain = FALSE;
 321 int     body_8bitmime = 0;
 322 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 323 address_item  *addr_duplicate  = NULL;
 324
 325 address_item address_defaults = {
 326   NULL,                 /* next */
 327   NULL,                 /* parent */
 328   NULL,                 /* first */
 329   NULL,                 /* dupof */
 330   NULL,                 /* start_router */
 331   NULL,                 /* router */
 332   NULL,                 /* transport */
 333   NULL,                 /* host_list */
 334   NULL,                 /* host_used */
 335   NULL,                 /* fallback_hosts */
 336   NULL,                 /* reply */
 337   NULL,                 /* retries */
 338   NULL,                 /* address */
 339   NULL,                 /* unique */
 340   NULL,                 /* cc_local_part */
 341   NULL,                 /* lc_local_part */
 342   NULL,                 /* local_part */
 343   NULL,                 /* prefix */
 344   NULL,                 /* suffix */
 345   NULL,                 /* domain */
 346   NULL,                 /* address_retry_key */
 347   NULL,                 /* domain_retry_key */
 348   NULL,                 /* current_dir */
 349   NULL,                 /* home_dir */
 350   NULL,                 /* message */
 351   NULL,                 /* user_message */
 352   NULL,                 /* onetime_parent */
 353   NULL,                 /* pipe_expandn */
 354   NULL,                 /* return_filename */
 355   NULL,                 /* self_hostname */
 356   NULL,                 /* shadow_message */
 357 #ifdef SUPPORT_TLS
 358   NULL,                 /* cipher */
 359   NULL,                 /* ourcert */
 360   NULL,                 /* peercert */
 361   NULL,                 /* peerdn */
 362   OCSP_NOT_REQ,         /* ocsp */
 363 #endif
 364 #ifdef EXPERIMENTAL_DSN_INFO
 365   NULL,                 /* smtp_greeting */
 366   NULL,                 /* helo_response */
 367 #endif
 368   NULL,                 /* authenticator */
 369   NULL,                 /* auth_id */
 370   NULL,                 /* auth_sndr */
 371   NULL,                 /* dsn_orcpt */
 372   0,                    /* dsn_flags */
 373   0,                    /* dsn_aware */
 374   (uid_t)(-1),          /* uid */
 375   (gid_t)(-1),          /* gid */
 376   0,                    /* flags */
 377   { 0 },                /* domain_cache - any larger array should be zeroed */
 378   { 0 },                /* localpart_cache - ditto */
 379   -1,                   /* mode */
 380   0,                    /* more_errno */
 381   ERRNO_UNKNOWNERROR,   /* basic_errno */
 382   0,                    /* child_count */
 383   -1,                   /* return_file */
 384   SPECIAL_NONE,         /* special_action */
 385   DEFER,                /* transport_return */
 386   {                     /* fields that are propagated to children */
 387     NULL,               /* address_data */
 388     NULL,               /* domain_data */
 389     NULL,               /* localpart_data */
 390     NULL,               /* errors_address */
 391     NULL,               /* extra_headers */
 392     NULL,               /* remove_headers */
 393 #ifdef EXPERIMENTAL_SRS
 394     NULL,               /* srs_sender */
 395 #endif
 396 #ifdef EXPERIMENTAL_INTERNATIONAL
 397     FALSE,              /* utf8 */
 398 #endif
 399   }
 400 };
 401
 402 uschar *address_file           = NULL;
 403 uschar *address_pipe           = NULL;
 404 BOOL    address_test_mode      = FALSE;
 405 tree_node *addresslist_anchor  = NULL;
 406 int     addresslist_count      = 0;
 407 gid_t  *admin_groups           = NULL;
 408 BOOL    admin_user             = FALSE;
 409 BOOL    allow_auth_unadvertised= FALSE;
 410 BOOL    allow_domain_literals  = FALSE;
 411 BOOL    allow_mx_to_ip         = FALSE;
 412 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 413 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 414 BOOL    allow_utf8_domains     = FALSE;
 415 uschar *authenticated_fail_id  = NULL;
 416 uschar *authenticated_id       = NULL;
 417 uschar *authenticated_sender   = NULL;
 418 BOOL    authentication_failed  = FALSE;
 419 auth_instance  *auths          = NULL;
 420 uschar *auth_advertise_hosts   = US"*";
 421 auth_instance auth_defaults    = {
 422     NULL,                      /* chain pointer */
 423     NULL,                      /* name */
 424     NULL,                      /* info */
 425     NULL,                      /* private options block pointer */
 426     NULL,                      /* driver_name */
 427     NULL,                      /* advertise_condition */
 428     NULL,                      /* client_condition */
 429     NULL,                      /* public_name */
 430     NULL,                      /* set_id */
 431     NULL,                      /* set_client_id */
 432     NULL,                      /* server_mail_auth_condition */
 433     NULL,                      /* server_debug_string */
 434     NULL,                      /* server_condition */
 435     FALSE,                     /* client */
 436     FALSE,                     /* server */
 437     FALSE                      /* advertised */
 438 };
 439
 440 uschar *auth_defer_msg         = US"reason not recorded";
 441 uschar *auth_defer_user_msg    = US"";
 442 uschar *auth_vars[AUTH_VARS];
 443 int     auto_thaw              = 0;
 444 #ifdef WITH_CONTENT_SCAN
 445 BOOL    av_failed              = FALSE;
 446 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 447 #endif
 448
 449 BOOL    background_daemon      = TRUE;
 450
 451 #if BASE_62 == 62
 452 uschar *base62_chars=
 453     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 454 #else
 455 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 456 #endif
 457
 458 uschar *bi_command             = NULL;
 459 uschar *big_buffer             = NULL;
 460 int     big_buffer_size        = BIG_BUFFER_SIZE;
 461 #ifdef EXPERIMENTAL_BRIGHTMAIL
 462 uschar *bmi_alt_location       = NULL;
 463 uschar *bmi_base64_tracker_verdict = NULL;
 464 uschar *bmi_base64_verdict     = NULL;
 465 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 466 int     bmi_deliver            = 1;
 467 int     bmi_run                = 0;
 468 uschar *bmi_verdicts           = NULL;
 469 #endif
 470 int     body_linecount         = 0;
 471 int     body_zerocount         = 0;
 472 uschar *bounce_message_file    = NULL;
 473 uschar *bounce_message_text    = NULL;
 474 uschar *bounce_recipient       = NULL;
 475 BOOL    bounce_return_body     = TRUE;
 476 BOOL    bounce_return_message  = TRUE;
 477 int     bounce_return_size_limit = 100*1024;
 478 uschar *bounce_sender_authentication = NULL;
 479 int     bsmtp_transaction_linecount = 0;
 480
 481 int     callout_cache_domain_positive_expire = 7*24*60*60;
 482 int     callout_cache_domain_negative_expire = 3*60*60;
 483 int     callout_cache_positive_expire = 24*60*60;
 484 int     callout_cache_negative_expire = 2*60*60;
 485 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 486 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 487 int     check_log_inodes       = 0;
 488 int     check_log_space        = 0;
 489 BOOL    check_rfc2047_length   = TRUE;
 490 int     check_spool_inodes     = 0;
 491 int     check_spool_space      = 0;
 492 uschar  *client_authenticator  = NULL;
 493 uschar  *client_authenticated_id = NULL;
 494 uschar  *client_authenticated_sender = NULL;
 495 int     clmacro_count          = 0;
 496 uschar *clmacros[MAX_CLMACROS];
 497 BOOL    config_changed         = FALSE;
 498 FILE   *config_file            = NULL;
 499 uschar *config_filename        = NULL;
 500 int     config_lineno          = 0;
 501 #ifdef CONFIGURE_GROUP
 502 gid_t   config_gid             = CONFIGURE_GROUP;
 503 #endif
 504 uschar *config_main_filelist   = US CONFIGURE_FILE
 505                          "\0<-----------Space to patch configure_filename->";
 506 uschar *config_main_filename   = NULL;
 507 uschar *config_main_directory  = NULL;
 508
 509 #ifdef CONFIGURE_OWNER
 510 uid_t   config_uid             = CONFIGURE_OWNER;
 511 #endif
 512
 513 int     connection_max_messages= -1;
 514 uschar *continue_hostname      = NULL;
 515 uschar *continue_host_address  = NULL;
 516 BOOL    continue_more          = FALSE;
 517 int     continue_sequence      = 1;
 518 uschar *continue_transport     = NULL;
 519
 520 uschar *csa_status             = NULL;
 521 cut_t   cutthrough = {
 522   FALSE,                                /* delivery: when to attempt */
 523   -1,                                   /* fd: open connection */
 524   0,                                    /* nrcpt: number of addresses */
 525 };
 526
 527 BOOL    daemon_listen          = FALSE;
 528 uschar *daemon_smtp_port       = US"smtp";
 529 int     daemon_startup_retries = 9;
 530 int     daemon_startup_sleep   = 30;
 531
 532 #ifdef EXPERIMENTAL_DCC
 533 BOOL    dcc_direct_add_header  = FALSE;
 534 uschar *dcc_header             = NULL;
 535 uschar *dcc_result             = NULL;
 536 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 537 uschar *dccifd_options         = US"header";
 538 #endif
 539
 540 BOOL    debug_daemon           = FALSE;
 541 int     debug_fd               = -1;
 542 FILE   *debug_file             = NULL;
 543 int     debug_notall[]         = {
 544   Di_memory,
 545   -1
 546 };
 547 bit_table debug_options[]      = { /* must be in alphabetical order */
 548   BIT_TABLE(D, acl),
 549   BIT_TABLE(D, all),
 550   BIT_TABLE(D, auth),
 551   BIT_TABLE(D, deliver),
 552   BIT_TABLE(D, dns),
 553   BIT_TABLE(D, dnsbl),
 554   BIT_TABLE(D, exec),
 555   BIT_TABLE(D, expand),
 556   BIT_TABLE(D, filter),
 557   BIT_TABLE(D, hints_lookup),
 558   BIT_TABLE(D, host_lookup),
 559   BIT_TABLE(D, ident),
 560   BIT_TABLE(D, interface),
 561   BIT_TABLE(D, lists),
 562   BIT_TABLE(D, load),
 563   BIT_TABLE(D, local_scan),
 564   BIT_TABLE(D, lookup),
 565   BIT_TABLE(D, memory),
 566   BIT_TABLE(D, pid),
 567   BIT_TABLE(D, process_info),
 568   BIT_TABLE(D, queue_run),
 569   BIT_TABLE(D, receive),
 570   BIT_TABLE(D, resolver),
 571   BIT_TABLE(D, retry),
 572   BIT_TABLE(D, rewrite),
 573   BIT_TABLE(D, route),
 574   BIT_TABLE(D, timestamp),
 575   BIT_TABLE(D, tls),
 576   BIT_TABLE(D, transport),
 577   BIT_TABLE(D, uid),
 578   BIT_TABLE(D, verify),
 579 };
 580 int     debug_options_count    = nelem(debug_options);
 581
 582 unsigned int debug_selector    = 0;
 583 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 584 uschar *delay_warning_condition=
 585   US"${if or {"
 586             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 587             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 588             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 589             "} {no}{yes}}";
 590 BOOL    delivery_date_remove   = TRUE;
 591 uschar *deliver_address_data   = NULL;
 592 int     deliver_datafile       = -1;
 593 const uschar *deliver_domain   = NULL;
 594 uschar *deliver_domain_data    = NULL;
 595 const uschar *deliver_domain_orig = NULL;
 596 const uschar *deliver_domain_parent = NULL;
 597 BOOL    deliver_drop_privilege = FALSE;
 598 BOOL    deliver_firsttime      = FALSE;
 599 BOOL    deliver_force          = FALSE;
 600 BOOL    deliver_freeze         = FALSE;
 601 time_t  deliver_frozen_at      = 0;
 602 uschar *deliver_home           = NULL;
 603 const uschar *deliver_host     = NULL;
 604 const uschar *deliver_host_address = NULL;
 605 int     deliver_host_port      = 0;
 606 uschar *deliver_in_buffer      = NULL;
 607 ino_t   deliver_inode          = 0;
 608 uschar *deliver_localpart      = NULL;
 609 uschar *deliver_localpart_data = NULL;
 610 uschar *deliver_localpart_orig = NULL;
 611 uschar *deliver_localpart_parent = NULL;
 612 uschar *deliver_localpart_prefix = NULL;
 613 uschar *deliver_localpart_suffix = NULL;
 614 BOOL    deliver_force_thaw     = FALSE;
 615 BOOL    deliver_manual_thaw    = FALSE;
 616 uschar *deliver_out_buffer     = NULL;
 617 int     deliver_queue_load_max = -1;
 618 address_item  *deliver_recipients = NULL;
 619 uschar *deliver_selectstring   = NULL;
 620 BOOL    deliver_selectstring_regex = FALSE;
 621 uschar *deliver_selectstring_sender = NULL;
 622 BOOL    deliver_selectstring_sender_regex = FALSE;
 623 #ifdef WITH_OLD_DEMIME
 624 int     demime_errorlevel      = 0;
 625 int     demime_ok              = 0;
 626 uschar *demime_reason          = NULL;
 627 #endif
 628 BOOL    disable_callout_flush  = FALSE;
 629 BOOL    disable_delay_flush    = FALSE;
 630 #ifdef ENABLE_DISABLE_FSYNC
 631 BOOL    disable_fsync          = FALSE;
 632 #endif
 633 BOOL    disable_ipv6           = FALSE;
 634 BOOL    disable_logging        = FALSE;
 635
 636 #ifndef DISABLE_DKIM
 637 uschar *dkim_cur_signer          = NULL;
 638 uschar *dkim_signers             = NULL;
 639 uschar *dkim_signing_domain      = NULL;
 640 uschar *dkim_signing_selector    = NULL;
 641 uschar *dkim_verify_signers      = US"$dkim_signers";
 642 BOOL    dkim_collect_input       = FALSE;
 643 BOOL    dkim_disable_verify      = FALSE;
 644 #endif
 645 #ifdef EXPERIMENTAL_DMARC
 646 BOOL    dmarc_has_been_checked  = FALSE;
 647 uschar *dmarc_ar_header         = NULL;
 648 uschar *dmarc_domain_policy     = NULL;
 649 uschar *dmarc_forensic_sender   = NULL;
 650 uschar *dmarc_history_file      = NULL;
 651 uschar *dmarc_status            = NULL;
 652 uschar *dmarc_status_text       = NULL;
 653 uschar *dmarc_tld_file          = NULL;
 654 uschar *dmarc_used_domain       = NULL;
 655 BOOL    dmarc_disable_verify    = FALSE;
 656 BOOL    dmarc_enable_forensic   = FALSE;
 657 #endif
 658
 659 uschar *dns_again_means_nonexist = NULL;
 660 int     dns_csa_search_limit   = 5;
 661 BOOL    dns_csa_use_reverse    = TRUE;
 662 #ifdef EXPERIMENTAL_DANE
 663 int     dns_dane_ok            = -1;
 664 #endif
 665 uschar *dns_ipv4_lookup        = NULL;
 666 int     dns_retrans            = 0;
 667 int     dns_retry              = 0;
 668 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 669 uschar *dns_trust_aa           = NULL;
 670 int     dns_use_edns0          = -1; /* <0 = not coerced */
 671 uschar *dnslist_domain         = NULL;
 672 uschar *dnslist_matched        = NULL;
 673 uschar *dnslist_text           = NULL;
 674 uschar *dnslist_value          = NULL;
 675 tree_node *domainlist_anchor   = NULL;
 676 int     domainlist_count       = 0;
 677 BOOL    dont_deliver           = FALSE;
 678 BOOL    dot_ends               = TRUE;
 679 BOOL    drop_cr                = FALSE;         /* No longer used */
 680 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 681
 682 BOOL    enable_dollar_recipients = FALSE;
 683 BOOL    envelope_to_remove     = TRUE;
 684 int     errno_quota            = ERRNO_QUOTA;
 685 uschar *errors_copy            = NULL;
 686 int     error_handling         = ERRORS_SENDER;
 687 uschar *errors_reply_to        = NULL;
 688 int     errors_sender_rc       = EXIT_FAILURE;
 689 #ifdef EXPERIMENTAL_EVENT
 690 uschar *event_action             = NULL;        /* expansion for delivery events */
 691 uschar *event_data               = NULL;        /* auxilary data variable for event */
 692 int     event_defer_errno        = 0;
 693 const uschar *event_name         = NULL;        /* event name variable */
 694 #endif
 695
 696
 697 gid_t   exim_gid               = EXIM_GID;
 698 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 699 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 700                         "\0<---------------Space to patch exim_path->";
 701 uid_t   exim_uid               = EXIM_UID;
 702 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 703 int     expand_forbid          = 0;
 704 int     expand_nlength[EXPAND_MAXN+1];
 705 int     expand_nmax            = -1;
 706 uschar *expand_nstring[EXPAND_MAXN+1];
 707 BOOL    expand_string_forcedfail = FALSE;
 708 uschar *expand_string_message;
 709 BOOL    extract_addresses_remove_arguments = TRUE;
 710 uschar *extra_local_interfaces = NULL;
 711
 712 int     fake_response          = OK;
 713 uschar *fake_response_text     = US"Your message has been rejected but is "
 714                                    "being kept for evaluation.\nIf it was a "
 715                                    "legitimate message, it may still be "
 716                                    "delivered to the target recipient(s).";
 717 int     filter_n[FILTER_VARIABLE_COUNT];
 718 BOOL    filter_running         = FALSE;
 719 int     filter_sn[FILTER_VARIABLE_COUNT];
 720 int     filter_test            = FTEST_NONE;
 721 uschar *filter_test_sfile      = NULL;
 722 uschar *filter_test_ufile      = NULL;
 723 uschar *filter_thisaddress     = NULL;
 724 int     finduser_retries       = 0;
 725 #ifdef WITH_OLD_DEMIME
 726 uschar *found_extension        = NULL;
 727 #endif
 728 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 729 uschar *freeze_tell            = NULL;
 730 uschar *freeze_tell_config     = NULL;
 731 uschar *fudged_queue_times     = US"";
 732
 733 uschar *gecos_name             = NULL;
 734 uschar *gecos_pattern          = NULL;
 735 rewrite_rule  *global_rewrite_rules = NULL;
 736
 737 uschar *headers_charset        = US HEADERS_CHARSET;
 738 int     header_insert_maxlen   = 64 * 1024;
 739 header_line  *header_last      = NULL;
 740 header_line  *header_list      = NULL;
 741 int     header_maxsize         = HEADER_MAXSIZE;
 742 int     header_line_maxsize    = 0;
 743
 744 header_name header_names[] = {
 745   { US"bcc",            3, TRUE,  htype_bcc },
 746   { US"cc",             2, TRUE,  htype_cc },
 747   { US"date",           4, TRUE,  htype_date },
 748   { US"delivery-date", 13, FALSE, htype_delivery_date },
 749   { US"envelope-to",   11, FALSE, htype_envelope_to },
 750   { US"from",           4, TRUE,  htype_from },
 751   { US"message-id",    10, TRUE,  htype_id },
 752   { US"received",       8, FALSE, htype_received },
 753   { US"reply-to",       8, FALSE, htype_reply_to },
 754   { US"return-path",   11, FALSE, htype_return_path },
 755   { US"sender",         6, TRUE,  htype_sender },
 756   { US"subject",        7, FALSE, htype_subject },
 757   { US"to",             2, TRUE,  htype_to }
 758 };
 759
 760 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 761
 762 BOOL    header_rewritten       = FALSE;
 763 uschar *helo_accept_junk_hosts = NULL;
 764 uschar *helo_allow_chars       = US"";
 765 uschar *helo_lookup_domains    = US"@ : @[]";
 766 uschar *helo_try_verify_hosts  = NULL;
 767 BOOL    helo_verified          = FALSE;
 768 BOOL    helo_verify_failed     = FALSE;
 769 uschar *helo_verify_hosts      = NULL;
 770 const uschar *hex_digits       = CUS"0123456789abcdef";
 771 uschar *hold_domains           = NULL;
 772 BOOL    host_checking          = FALSE;
 773 BOOL    host_checking_callout  = FALSE;
 774 uschar *host_data              = NULL;
 775 BOOL    host_find_failed_syntax= FALSE;
 776 uschar *host_lookup            = NULL;
 777 BOOL    host_lookup_deferred   = FALSE;
 778 BOOL    host_lookup_failed     = FALSE;
 779 uschar *host_lookup_order      = US"bydns:byaddr";
 780 uschar *host_lookup_msg        = US"";
 781 int     host_number            = 0;
 782 uschar *host_number_string     = NULL;
 783 uschar *host_reject_connection = NULL;
 784 tree_node *hostlist_anchor     = NULL;
 785 int     hostlist_count         = 0;
 786 uschar *hosts_treat_as_local   = NULL;
 787 uschar *hosts_connection_nolog = NULL;
 788
 789 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 790 BOOL    ignore_fromline_local  = FALSE;
 791 uschar *ignore_fromline_hosts  = NULL;
 792 BOOL    inetd_wait_mode        = FALSE;
 793 int     inetd_wait_timeout     = -1;
 794 uschar *interface_address      = NULL;
 795 int     interface_port         = -1;
 796 BOOL    is_inetd               = FALSE;
 797 uschar *iterate_item           = NULL;
 798
 799 int     journal_fd             = -1;
 800
 801 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 802
 803 uschar *eldap_dn               = NULL;
 804 int     load_average           = -2;
 805 BOOL    local_error_message    = FALSE;
 806 BOOL    local_from_check       = TRUE;
 807 uschar *local_from_prefix      = NULL;
 808 uschar *local_from_suffix      = NULL;
 809
 810 #if HAVE_IPV6
 811 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 812 #else
 813 uschar *local_interfaces       = US"0.0.0.0";
 814 #endif
 815
 816 uschar *local_scan_data        = NULL;
 817 int     local_scan_timeout     = 5*60;
 818 BOOL    local_sender_retain    = FALSE;
 819 gid_t   local_user_gid         = (gid_t)(-1);
 820 uid_t   local_user_uid         = (uid_t)(-1);
 821
 822 tree_node *localpartlist_anchor= NULL;
 823 int     localpartlist_count    = 0;
 824 uschar *log_buffer             = NULL;
 825
 826 int     log_default[]          = { /* for initializing log_selector */
 827   Li_acl_warn_skipped,
 828   Li_connection_reject,
 829   Li_delay_delivery,
 830   Li_dnslist_defer,
 831   Li_etrn,
 832   Li_host_lookup_failed,
 833   Li_lost_incoming_connection,
 834   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 835   Li_queue_run,
 836   Li_rejected_header,
 837   Li_retry_defer,
 838   Li_sender_verify_fail,
 839   Li_size_reject,
 840   Li_skip_delivery,
 841   Li_smtp_confirmation,
 842   Li_tls_certificate_verified,
 843   Li_tls_cipher,
 844   -1
 845 };
 846
 847 uschar *log_file_path          = US LOG_FILE_PATH
 848                            "\0<--------------Space to patch log_file_path->";
 849
 850 int     log_notall[]           = {
 851   -1
 852 };
 853 bit_table log_options[]        = { /* must be in alphabetical order */
 854   BIT_TABLE(L, 8bitmime),
 855   BIT_TABLE(L, acl_warn_skipped),
 856   BIT_TABLE(L, address_rewrite),
 857   BIT_TABLE(L, all),
 858   BIT_TABLE(L, all_parents),
 859   BIT_TABLE(L, arguments),
 860   BIT_TABLE(L, connection_reject),
 861   BIT_TABLE(L, delay_delivery),
 862   BIT_TABLE(L, deliver_time),
 863   BIT_TABLE(L, delivery_size),
 864   BIT_TABLE(L, dnslist_defer),
 865   BIT_TABLE(L, etrn),
 866   BIT_TABLE(L, host_lookup_failed),
 867   BIT_TABLE(L, ident_timeout),
 868   BIT_TABLE(L, incoming_interface),
 869   BIT_TABLE(L, incoming_port),
 870   BIT_TABLE(L, lost_incoming_connection),
 871   BIT_TABLE(L, outgoing_interface),
 872   BIT_TABLE(L, outgoing_port),
 873   BIT_TABLE(L, pid),
 874 #ifdef EXPERIMENTAL_PROXY
 875   BIT_TABLE(L, proxy),
 876 #endif
 877   BIT_TABLE(L, queue_run),
 878   BIT_TABLE(L, queue_time),
 879   BIT_TABLE(L, queue_time_overall),
 880   BIT_TABLE(L, received_recipients),
 881   BIT_TABLE(L, received_sender),
 882   BIT_TABLE(L, rejected_header),
 883   { US"rejected_headers", Li_rejected_header },
 884   BIT_TABLE(L, retry_defer),
 885   BIT_TABLE(L, return_path_on_delivery),
 886   BIT_TABLE(L, sender_on_delivery),
 887   BIT_TABLE(L, sender_verify_fail),
 888   BIT_TABLE(L, size_reject),
 889   BIT_TABLE(L, skip_delivery),
 890   BIT_TABLE(L, smtp_confirmation),
 891   BIT_TABLE(L, smtp_connection),
 892   BIT_TABLE(L, smtp_incomplete_transaction),
 893   BIT_TABLE(L, smtp_mailauth),
 894   BIT_TABLE(L, smtp_no_mail),
 895   BIT_TABLE(L, smtp_protocol_error),
 896   BIT_TABLE(L, smtp_syntax_error),
 897   BIT_TABLE(L, subject),
 898   BIT_TABLE(L, tls_certificate_verified),
 899   BIT_TABLE(L, tls_cipher),
 900   BIT_TABLE(L, tls_peerdn),
 901   BIT_TABLE(L, tls_sni),
 902   BIT_TABLE(L, unknown_in_list),
 903 };
 904 int     log_options_count      = nelem(log_options);
 905
 906 int     log_reject_target      = 0;
 907 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 908 uschar *log_selector_string    = NULL;
 909 FILE   *log_stderr             = NULL;
 910 BOOL    log_testing_mode       = FALSE;
 911 BOOL    log_timezone           = FALSE;
 912 uschar *login_sender_address   = NULL;
 913 uschar *lookup_dnssec_authenticated = NULL;
 914 int     lookup_open_max        = 25;
 915 uschar *lookup_value           = NULL;
 916
 917 macro_item  *macros            = NULL;
 918 uschar *mailstore_basename     = NULL;
 919 #ifdef WITH_CONTENT_SCAN
 920 uschar *malware_name           = NULL;  /* Virus Name */
 921 #endif
 922 int     max_received_linelength= 0;
 923 int     max_username_length    = 0;
 924 int     message_age            = 0;
 925 uschar *message_body           = NULL;
 926 uschar *message_body_end       = NULL;
 927 BOOL    message_body_newlines  = FALSE;
 928 int     message_body_size      = 0;
 929 int     message_body_visible   = 500;
 930 int     message_ended          = END_NOTSTARTED;
 931 uschar *message_headers        = NULL;
 932 uschar *message_id;
 933 uschar *message_id_domain      = NULL;
 934 uschar *message_id_text        = NULL;
 935 struct timeval message_id_tv   = { 0, 0 };
 936 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 937 uschar *message_id_external;
 938 int     message_linecount      = 0;
 939 BOOL    message_logs           = TRUE;
 940 int     message_size           = 0;
 941 uschar *message_size_limit     = US"50M";
 942 #ifdef EXPERIMENTAL_INTERNATIONAL
 943 BOOL    message_smtputf8       = FALSE;
 944 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 945 #endif
 946 uschar  message_subdir[2]      = { 0, 0 };
 947 uschar *message_reference      = NULL;
 948
 949 /* MIME ACL expandables */
 950 #ifdef WITH_CONTENT_SCAN
 951 int     mime_anomaly_level     = 0;
 952 const uschar *mime_anomaly_text      = NULL;
 953 uschar *mime_boundary          = NULL;
 954 uschar *mime_charset           = NULL;
 955 uschar *mime_content_description = NULL;
 956 uschar *mime_content_disposition = NULL;
 957 uschar *mime_content_id        = NULL;
 958 unsigned int mime_content_size = 0;
 959 uschar *mime_content_transfer_encoding = NULL;
 960 uschar *mime_content_type      = NULL;
 961 uschar *mime_decoded_filename  = NULL;
 962 uschar *mime_filename          = NULL;
 963 int     mime_is_multipart      = 0;
 964 int     mime_is_coverletter    = 0;
 965 int     mime_is_rfc822         = 0;
 966 int     mime_part_count        = -1;
 967 #endif
 968
 969 BOOL    mua_wrapper            = FALSE;
 970
 971 uid_t  *never_users            = NULL;
 972 #ifdef WITH_CONTENT_SCAN
 973 BOOL    no_mbox_unspool        = FALSE;
 974 #endif
 975 BOOL    no_multiline_responses = FALSE;
 976
 977 uid_t   original_euid;
 978 gid_t   originator_gid;
 979 uschar *originator_login       = NULL;
 980 uschar *originator_name        = NULL;
 981 uid_t   originator_uid;
 982 uschar *override_local_interfaces = NULL;
 983 uschar *override_pid_file_path = NULL;
 984
 985 BOOL    parse_allow_group      = FALSE;
 986 BOOL    parse_found_group      = FALSE;
 987 uschar *percent_hack_domains   = NULL;
 988 uschar *pid_file_path          = US PID_FILE_PATH
 989                            "\0<--------------Space to patch pid_file_path->";
 990 BOOL    pipelining_enable      = TRUE;
 991 uschar *pipelining_advertise_hosts = US"*";
 992 BOOL    preserve_message_logs  = FALSE;
 993 uschar *primary_hostname       = NULL;
 994 BOOL    print_topbitchars      = FALSE;
 995 uschar  process_info[PROCESS_INFO_SIZE];
 996 int     process_info_len       = 0;
 997 uschar *process_log_path       = NULL;
 998 BOOL    prod_requires_admin    = TRUE;
 999
1000 #ifdef EXPERIMENTAL_PROXY
1001 uschar *proxy_host_address     = US"";
1002 int     proxy_host_port        = 0;
1003 uschar *proxy_required_hosts   = US"";
1004 BOOL    proxy_session          = FALSE;
1005 BOOL    proxy_session_failed   = FALSE;
1006 uschar *proxy_target_address   = US"";
1007 int     proxy_target_port      = 0;
1008 #endif
1009
1010 uschar *prvscheck_address      = NULL;
1011 uschar *prvscheck_keynum       = NULL;
1012 uschar *prvscheck_result       = NULL;
1013
1014
1015 const uschar *qualify_domain_recipient = NULL;
1016 uschar *qualify_domain_sender  = NULL;
1017 BOOL    queue_2stage           = FALSE;
1018 uschar *queue_domains          = NULL;
1019 int     queue_interval         = -1;
1020 BOOL    queue_list_requires_admin = TRUE;
1021 BOOL    queue_only             = FALSE;
1022 uschar *queue_only_file        = NULL;
1023 int     queue_only_load        = -1;
1024 BOOL    queue_only_load_latch  = TRUE;
1025 BOOL    queue_only_override    = TRUE;
1026 BOOL    queue_only_policy      = FALSE;
1027 BOOL    queue_run_first_delivery = FALSE;
1028 BOOL    queue_run_force        = FALSE;
1029 BOOL    queue_run_in_order     = FALSE;
1030 BOOL    queue_run_local        = FALSE;
1031 int     queue_run_max          = 5;
1032 pid_t   queue_run_pid          = (pid_t)0;
1033 int     queue_run_pipe         = -1;
1034 BOOL    queue_running          = FALSE;
1035 BOOL    queue_smtp             = FALSE;
1036 uschar *queue_smtp_domains     = NULL;
1037
1038 unsigned int random_seed       = 0;
1039 tree_node *ratelimiters_cmd    = NULL;
1040 tree_node *ratelimiters_conn   = NULL;
1041 tree_node *ratelimiters_mail   = NULL;
1042 uschar *raw_active_hostname    = NULL;
1043 uschar *raw_sender             = NULL;
1044 uschar **raw_recipients        = NULL;
1045 int     raw_recipients_count   = 0;
1046
1047 int     rcpt_count             = 0;
1048 int     rcpt_fail_count        = 0;
1049 int     rcpt_defer_count       = 0;
1050 gid_t   real_gid;
1051 uid_t   real_uid;
1052 BOOL    really_exim            = TRUE;
1053 BOOL    receive_call_bombout   = FALSE;
1054 int     receive_linecount      = 0;
1055 int     receive_messagecount   = 0;
1056 int     receive_timeout        = 0;
1057 int     received_count         = 0;
1058 uschar *received_for           = NULL;
1059
1060 /*  This is the default text for Received headers generated by Exim. The
1061 date  will be automatically added on the end. */
1062
1063 uschar *received_header_text   = US
1064      "Received: "
1065      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1066      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1067      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1068      "by $primary_hostname "
1069      "${if def:received_protocol {with $received_protocol}} "
1070      #ifdef SUPPORT_TLS
1071      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1072      #endif
1073      "(Exim $version_number)\n\t"
1074      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1075      "id $message_exim_id"
1076      "${if def:received_for {\n\tfor $received_for}}"
1077      "\0<---------------Space to patch received_header_text->";
1078
1079 int     received_headers_max   = 30;
1080 uschar *received_protocol      = NULL;
1081 int     received_time          = 0;
1082 uschar *recipient_data         = NULL;
1083 uschar *recipient_unqualified_hosts = NULL;
1084 uschar *recipient_verify_failure = NULL;
1085 int     recipients_count       = 0;
1086 BOOL    recipients_discarded   = FALSE;
1087 recipient_item  *recipients_list = NULL;
1088 int     recipients_list_max    = 0;
1089 int     recipients_max         = 0;
1090 BOOL    recipients_max_reject  = FALSE;
1091 const pcre *regex_AUTH         = NULL;
1092 const pcre *regex_check_dns_names = NULL;
1093 const pcre *regex_From         = NULL;
1094 const pcre *regex_IGNOREQUOTA  = NULL;
1095 const pcre *regex_PIPELINING   = NULL;
1096 const pcre *regex_SIZE         = NULL;
1097 const pcre *regex_ismsgid      = NULL;
1098 const pcre *regex_smtp_code    = NULL;
1099 uschar *regex_vars[REGEX_VARS];
1100 #ifdef WHITELIST_D_MACROS
1101 const pcre *regex_whitelisted_macro = NULL;
1102 #endif
1103 #ifdef WITH_CONTENT_SCAN
1104 uschar *regex_match_string     = NULL;
1105 #endif
1106 int     remote_delivery_count  = 0;
1107 int     remote_max_parallel    = 2;
1108 uschar *remote_sort_domains    = NULL;
1109 int     retry_data_expire      = 7*24*60*60;
1110 int     retry_interval_max     = 24*60*60;
1111 int     retry_maximum_timeout  = 0;        /* set from retry config */
1112 retry_config  *retries         = NULL;
1113 uschar *return_path            = NULL;
1114 BOOL    return_path_remove     = TRUE;
1115 int     rewrite_existflags     = 0;
1116 uschar *rfc1413_hosts          = US"@[]";
1117 int     rfc1413_query_timeout  = 0;
1118 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1119 uid_t   root_gid               = ROOT_GID;
1120 uid_t   root_uid               = ROOT_UID;
1121
1122 router_instance  *routers  = NULL;
1123 router_instance  router_defaults = {
1124     NULL,                      /* chain pointer */
1125     NULL,                      /* name */
1126     NULL,                      /* info */
1127     NULL,                      /* private options block pointer */
1128     NULL,                      /* driver name */
1129
1130     NULL,                      /* address_data */
1131 #ifdef EXPERIMENTAL_BRIGHTMAIL
1132     NULL,                      /* bmi_rule */
1133 #endif
1134     NULL,                      /* cannot_route_message */
1135     NULL,                      /* condition */
1136     NULL,                      /* current_directory */
1137     NULL,                      /* debug_string */
1138     NULL,                      /* domains */
1139     NULL,                      /* errors_to */
1140     NULL,                      /* expand_gid */
1141     NULL,                      /* expand_uid */
1142     NULL,                      /* expand_more */
1143     NULL,                      /* expand_unseen */
1144     NULL,                      /* extra_headers */
1145     NULL,                      /* fallback_hosts */
1146     NULL,                      /* home_directory */
1147     NULL,                      /* ignore_target_hosts */
1148     NULL,                      /* local_parts */
1149     NULL,                      /* pass_router_name */
1150     NULL,                      /* prefix */
1151     NULL,                      /* redirect_router_name */
1152     NULL,                      /* remove_headers */
1153     NULL,                      /* require_files */
1154     NULL,                      /* router_home_directory */
1155     US"freeze",                /* self */
1156     NULL,                      /* senders */
1157     NULL,                      /* suffix */
1158     NULL,                      /* translate_ip_address */
1159     NULL,                      /* transport_name */
1160
1161     TRUE,                      /* address_test */
1162 #ifdef EXPERIMENTAL_BRIGHTMAIL
1163     FALSE,                     /* bmi_deliver_alternate */
1164     FALSE,                     /* bmi_deliver_default */
1165     FALSE,                     /* bmi_dont_deliver */
1166 #endif
1167     TRUE,                      /* expn */
1168     FALSE,                     /* caseful_local_part */
1169     FALSE,                     /* check_local_user */
1170     FALSE,                     /* disable_logging */
1171     FALSE,                     /* fail_verify_recipient */
1172     FALSE,                     /* fail_verify_sender */
1173     FALSE,                     /* gid_set */
1174     FALSE,                     /* initgroups */
1175     TRUE_UNSET,                /* log_as_local */
1176     TRUE,                      /* more */
1177     FALSE,                     /* pass_on_timeout */
1178     FALSE,                     /* prefix_optional */
1179     TRUE,                      /* repeat_use */
1180     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1181     FALSE,                     /* same_domain_copy_routing */
1182     FALSE,                     /* self_rewrite */
1183     FALSE,                     /* suffix_optional */
1184     FALSE,                     /* verify_only */
1185     TRUE,                      /* verify_recipient */
1186     TRUE,                      /* verify_sender */
1187     FALSE,                     /* uid_set */
1188     FALSE,                     /* unseen */
1189     FALSE,                     /* dsn_lasthop */
1190
1191     self_freeze,               /* self_code */
1192     (uid_t)(-1),               /* uid */
1193     (gid_t)(-1),               /* gid */
1194
1195     NULL,                      /* fallback_hostlist */
1196     NULL,                      /* transport instance */
1197     NULL,                      /* pass_router */
1198     NULL,                      /* redirect_router */
1199
1200     { NULL, NULL },            /* dnssec_domains {require,request} */
1201 };
1202
1203 uschar *router_name            = NULL;
1204
1205 ip_address_item *running_interfaces = NULL;
1206 BOOL    running_in_test_harness = FALSE;
1207
1208 /* This is a weird one. The following string gets patched in the binary by the
1209 script that sets up a copy of Exim for running in the test harness. It seems
1210 that compilers are now clever, and share constant strings if they can.
1211 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1212 make use of the end of this string in order to save space. So the patching then
1213 wrecks this. We defeat this optimization by adding some additional characters
1214 onto the end of the string. */
1215
1216 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1217
1218 int     runrc                  = 0;
1219
1220 uschar *search_error_message   = NULL;
1221 BOOL    search_find_defer      = FALSE;
1222 uschar *self_hostname          = NULL;
1223 uschar *sender_address         = NULL;
1224 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1225 uschar *sender_address_data    = NULL;
1226 BOOL    sender_address_forced  = FALSE;
1227 uschar *sender_address_unrewritten = NULL;
1228 uschar *sender_data            = NULL;
1229 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1230 uschar *sender_fullhost        = NULL;
1231 BOOL    sender_helo_dnssec     = FALSE;
1232 uschar *sender_helo_name       = NULL;
1233 uschar **sender_host_aliases   = &no_aliases;
1234 uschar *sender_host_address    = NULL;
1235 uschar *sender_host_authenticated = NULL;
1236 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1237 BOOL    sender_host_dnssec     = FALSE;
1238 uschar *sender_host_name       = NULL;
1239 int     sender_host_port       = 0;
1240 BOOL    sender_host_notsocket  = FALSE;
1241 BOOL    sender_host_unknown    = FALSE;
1242 uschar *sender_ident           = NULL;
1243 BOOL    sender_local           = FALSE;
1244 BOOL    sender_name_forced     = FALSE;
1245 uschar *sender_rate            = NULL;
1246 uschar *sender_rate_limit      = NULL;
1247 uschar *sender_rate_period     = NULL;
1248 uschar *sender_rcvhost         = NULL;
1249 BOOL    sender_set_untrusted   = FALSE;
1250 uschar *sender_unqualified_hosts = NULL;
1251 uschar *sender_verify_failure = NULL;
1252 address_item *sender_verified_list  = NULL;
1253 address_item *sender_verified_failed = NULL;
1254 int     sender_verified_rc     = -1;
1255 BOOL    sender_verified_responded = FALSE;
1256 uschar *sending_ip_address     = NULL;
1257 int     sending_port           = -1;
1258 SIGNAL_BOOL sigalrm_seen       = FALSE;
1259 uschar **sighup_argv           = NULL;
1260 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1261 int     smtp_accept_count      = 0;
1262 BOOL    smtp_accept_keepalive  = TRUE;
1263 int     smtp_accept_max        = 20;
1264 int     smtp_accept_max_nonmail= 10;
1265 uschar *smtp_accept_max_nonmail_hosts = US"*";
1266 int     smtp_accept_max_per_connection = 1000;
1267 uschar *smtp_accept_max_per_host = NULL;
1268 int     smtp_accept_queue      = 0;
1269 int     smtp_accept_queue_per_connection = 10;
1270 int     smtp_accept_reserve    = 0;
1271 uschar *smtp_active_hostname   = NULL;
1272 BOOL    smtp_authenticated     = FALSE;
1273 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1274                              "Exim $version_number $tod_full"
1275                              "\0<---------------Space to patch smtp_banner->";
1276 BOOL    smtp_batched_input     = FALSE;
1277 BOOL    smtp_check_spool_space = TRUE;
1278 int     smtp_ch_index          = 0;
1279 uschar *smtp_cmd_argument      = NULL;
1280 uschar *smtp_cmd_buffer        = NULL;
1281 time_t  smtp_connection_start  = 0;
1282 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1283 int     smtp_connect_backlog   = 20;
1284 double  smtp_delay_mail        = 0.0;
1285 double  smtp_delay_rcpt        = 0.0;
1286 BOOL    smtp_enforce_sync      = TRUE;
1287 FILE   *smtp_in                = NULL;
1288 BOOL    smtp_input             = FALSE;
1289 int     smtp_load_reserve      = -1;
1290 int     smtp_mailcmd_count     = 0;
1291 FILE   *smtp_out               = NULL;
1292 uschar *smtp_etrn_command      = NULL;
1293 BOOL    smtp_etrn_serialize    = TRUE;
1294 int     smtp_max_synprot_errors= 3;
1295 int     smtp_max_unknown_commands = 3;
1296 uschar *smtp_notquit_reason    = NULL;
1297 uschar *smtp_ratelimit_hosts   = NULL;
1298 uschar *smtp_ratelimit_mail    = NULL;
1299 uschar *smtp_ratelimit_rcpt    = NULL;
1300 uschar *smtp_read_error        = US"";
1301 int     smtp_receive_timeout   = 5*60;
1302 uschar *smtp_receive_timeout_s = NULL;
1303 uschar *smtp_reserve_hosts     = NULL;
1304 BOOL    smtp_return_error_details = FALSE;
1305 int     smtp_rlm_base          = 0;
1306 double  smtp_rlm_factor        = 0.0;
1307 int     smtp_rlm_limit         = 0;
1308 int     smtp_rlm_threshold     = INT_MAX;
1309 int     smtp_rlr_base          = 0;
1310 double  smtp_rlr_factor        = 0.0;
1311 int     smtp_rlr_limit         = 0;
1312 int     smtp_rlr_threshold     = INT_MAX;
1313 BOOL    smtp_use_pipelining    = FALSE;
1314 BOOL    smtp_use_size          = FALSE;
1315 #ifdef EXPERIMENTAL_INTERNATIONAL
1316 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1317 #endif
1318
1319 #ifdef WITH_CONTENT_SCAN
1320 uschar *spamd_address          = US"127.0.0.1 783";
1321 uschar *spam_bar               = NULL;
1322 uschar *spam_report            = NULL;
1323 uschar *spam_action            = NULL;
1324 uschar *spam_score             = NULL;
1325 uschar *spam_score_int         = NULL;
1326 #endif
1327 #ifdef EXPERIMENTAL_SPF
1328 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1329 uschar *spf_header_comment     = NULL;
1330 uschar *spf_received           = NULL;
1331 uschar *spf_result             = NULL;
1332 uschar *spf_smtp_comment       = NULL;
1333 #endif
1334
1335 BOOL    split_spool_directory  = FALSE;
1336 uschar *spool_directory        = US SPOOL_DIRECTORY
1337                            "\0<--------------Space to patch spool_directory->";
1338 #ifdef EXPERIMENTAL_SRS
1339 uschar *srs_config             = NULL;
1340 uschar *srs_db_address         = NULL;
1341 uschar *srs_db_key             = NULL;
1342 int     srs_hashlength         = 6;
1343 int     srs_hashmin            = -1;
1344 int     srs_maxage             = 31;
1345 uschar *srs_orig_recipient     = NULL;
1346 uschar *srs_orig_sender        = NULL;
1347 uschar *srs_recipient          = NULL;
1348 uschar *srs_secrets            = NULL;
1349 uschar *srs_status             = NULL;
1350 BOOL    srs_usehash            = TRUE;
1351 BOOL    srs_usetimestamp       = TRUE;
1352 #endif
1353 BOOL    strict_acl_vars        = FALSE;
1354 int     string_datestamp_offset= -1;
1355 int     string_datestamp_length= 0;
1356 int     string_datestamp_type  = -1;
1357 BOOL    strip_excess_angle_brackets = FALSE;
1358 BOOL    strip_trailing_dot     = FALSE;
1359 uschar *submission_domain      = NULL;
1360 BOOL    submission_mode        = FALSE;
1361 uschar *submission_name        = NULL;
1362 BOOL    suppress_local_fixups  = FALSE;
1363 BOOL    suppress_local_fixups_default = FALSE;
1364 BOOL    synchronous_delivery   = FALSE;
1365 BOOL    syslog_duplication     = TRUE;
1366 int     syslog_facility        = LOG_MAIL;
1367 uschar *syslog_processname     = US"exim";
1368 BOOL    syslog_timestamp       = TRUE;
1369 uschar *system_filter          = NULL;
1370
1371 uschar *system_filter_directory_transport = NULL;
1372 uschar *system_filter_file_transport = NULL;
1373 uschar *system_filter_pipe_transport = NULL;
1374 uschar *system_filter_reply_transport = NULL;
1375
1376 gid_t   system_filter_gid      = 0;
1377 BOOL    system_filter_gid_set  = FALSE;
1378 uid_t   system_filter_uid      = (uid_t)-1;
1379 BOOL    system_filter_uid_set  = FALSE;
1380 BOOL    system_filtering       = FALSE;
1381
1382 BOOL    tcp_nodelay            = TRUE;
1383 #ifdef USE_TCP_WRAPPERS
1384 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1385 #endif
1386 int     test_harness_load_avg  = 0;
1387 int     thismessage_size_limit = 0;
1388 int     timeout_frozen_after   = 0;
1389 BOOL    timestamps_utc         = FALSE;
1390
1391 transport_instance  *transports = NULL;
1392
1393 transport_instance  transport_defaults = {
1394     NULL,                     /* chain pointer */
1395     NULL,                     /* name */
1396     NULL,                     /* info */
1397     NULL,                     /* private options block pointer */
1398     NULL,                     /* driver name */
1399     NULL,                     /* setup entry point */
1400     1,                        /* batch_max */
1401     NULL,                     /* batch_id */
1402     NULL,                     /* home_dir */
1403     NULL,                     /* current_dir */
1404     NULL,                     /* expand-multi-domain */
1405     TRUE,                     /* multi-domain */
1406     FALSE,                    /* overrides_hosts */
1407     100,                      /* max_addresses */
1408     500,                      /* connection_max_messages */
1409     FALSE,                    /* deliver_as_creator */
1410     FALSE,                    /* disable_logging */
1411     FALSE,                    /* initgroups */
1412     FALSE,                    /* uid_set */
1413     FALSE,                    /* gid_set */
1414     (uid_t)(-1),              /* uid */
1415     (gid_t)(-1),              /* gid */
1416     NULL,                     /* expand_uid */
1417     NULL,                     /* expand_gid */
1418     NULL,                     /* warn_message */
1419     NULL,                     /* shadow */
1420     NULL,                     /* shadow_condition */
1421     NULL,                     /* filter_command */
1422     NULL,                     /* add_headers */
1423     NULL,                     /* remove_headers */
1424     NULL,                     /* return_path */
1425     NULL,                     /* debug_string */
1426     NULL,                     /* message_size_limit */
1427     NULL,                     /* headers_rewrite */
1428     NULL,                     /* rewrite_rules */
1429     0,                        /* rewrite_existflags */
1430     300,                      /* filter_timeout */
1431     FALSE,                    /* body_only */
1432     FALSE,                    /* delivery_date_add */
1433     FALSE,                    /* envelope_to_add */
1434     FALSE,                    /* headers_only */
1435     FALSE,                    /* rcpt_include_affixes */
1436     FALSE,                    /* return_path_add */
1437     FALSE,                    /* return_output */
1438     FALSE,                    /* return_fail_output */
1439     FALSE,                    /* log_output */
1440     FALSE,                    /* log_fail_output */
1441     FALSE,                    /* log_defer_output */
1442     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1443                                  1 nor 0 so can detect unset */
1444 #ifdef EXPERIMENTAL_EVENT
1445    ,NULL                      /* event_action */
1446 #endif
1447 };
1448
1449 int     transport_count;
1450 uschar *transport_name          = NULL;
1451 int     transport_newlines;
1452 const uschar **transport_filter_argv  = NULL;
1453 int     transport_filter_timeout;
1454 BOOL    transport_filter_timed_out = FALSE;
1455 int     transport_write_timeout= 0;
1456
1457 tree_node  *tree_dns_fails     = NULL;
1458 tree_node  *tree_duplicates    = NULL;
1459 tree_node  *tree_nonrecipients = NULL;
1460 tree_node  *tree_unusable      = NULL;
1461
1462 BOOL    trusted_caller         = FALSE;
1463 BOOL    trusted_config         = TRUE;
1464 gid_t  *trusted_groups         = NULL;
1465 uid_t  *trusted_users          = NULL;
1466 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1467
1468 uschar *unknown_login          = NULL;
1469 uschar *unknown_username       = NULL;
1470 uschar *untrusted_set_sender   = NULL;
1471
1472 /*  A regex for matching a "From_" line in an incoming message, in the form
1473
1474     From ph10 Fri Jan  5 12:35 GMT 1996
1475
1476 which  the "mail" commands send to the MTA (undocumented, of course), or in
1477 the  form
1478
1479     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1480
1481 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1482 Because  of variations in time formats, just match up to the minutes. That
1483 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1484 so  just require one digit for hours and minutes. The weekday is also absent
1485 in  some forms. */
1486
1487 uschar *uucp_from_pattern      = US
1488    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1489    "(?:"                                          /* Non-extracting bracket */
1490    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1491    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1492    ")"                                            /* End alternation */
1493    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1494
1495 uschar *uucp_from_sender       = US"$1";
1496
1497 uschar *verify_mode            = NULL;
1498 uschar *version_copyright      =
1499  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1500    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1501 uschar *version_date           = US"?";
1502 uschar *version_cnumber        = US"????";
1503 uschar *version_string         = US"?";
1504
1505 uschar *warn_message_file      = NULL;
1506 int     warning_count          = 0;
1507 uschar *warnmsg_delay          = NULL;
1508 uschar *warnmsg_recipients     = NULL;
1509 BOOL    write_rejectlog        = TRUE;
1510
1511
1512 /*  End of globals.c */