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 uschar *callout_address        = NULL;
 482 int     callout_cache_domain_positive_expire = 7*24*60*60;
 483 int     callout_cache_domain_negative_expire = 3*60*60;
 484 int     callout_cache_positive_expire = 24*60*60;
 485 int     callout_cache_negative_expire = 2*60*60;
 486 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 487 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 488 int     check_log_inodes       = 0;
 489 int     check_log_space        = 0;
 490 BOOL    check_rfc2047_length   = TRUE;
 491 int     check_spool_inodes     = 0;
 492 int     check_spool_space      = 0;
 493 uschar  *client_authenticator  = NULL;
 494 uschar  *client_authenticated_id = NULL;
 495 uschar  *client_authenticated_sender = NULL;
 496 int     clmacro_count          = 0;
 497 uschar *clmacros[MAX_CLMACROS];
 498 BOOL    config_changed         = FALSE;
 499 FILE   *config_file            = NULL;
 500 uschar *config_filename        = NULL;
 501 int     config_lineno          = 0;
 502 #ifdef CONFIGURE_GROUP
 503 gid_t   config_gid             = CONFIGURE_GROUP;
 504 #endif
 505 uschar *config_main_filelist   = US CONFIGURE_FILE
 506                          "\0<-----------Space to patch configure_filename->";
 507 uschar *config_main_filename   = NULL;
 508 uschar *config_main_directory  = NULL;
 509
 510 #ifdef CONFIGURE_OWNER
 511 uid_t   config_uid             = CONFIGURE_OWNER;
 512 #endif
 513
 514 int     connection_max_messages= -1;
 515 uschar *continue_hostname      = NULL;
 516 uschar *continue_host_address  = NULL;
 517 BOOL    continue_more          = FALSE;
 518 int     continue_sequence      = 1;
 519 uschar *continue_transport     = NULL;
 520
 521 uschar *csa_status             = NULL;
 522 cut_t   cutthrough = {
 523   FALSE,                                /* delivery: when to attempt */
 524   -1,                                   /* fd: open connection */
 525   0,                                    /* nrcpt: number of addresses */
 526 };
 527
 528 BOOL    daemon_listen          = FALSE;
 529 uschar *daemon_smtp_port       = US"smtp";
 530 int     daemon_startup_retries = 9;
 531 int     daemon_startup_sleep   = 30;
 532
 533 #ifdef EXPERIMENTAL_DCC
 534 BOOL    dcc_direct_add_header  = FALSE;
 535 uschar *dcc_header             = NULL;
 536 uschar *dcc_result             = NULL;
 537 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 538 uschar *dccifd_options         = US"header";
 539 #endif
 540
 541 BOOL    debug_daemon           = FALSE;
 542 int     debug_fd               = -1;
 543 FILE   *debug_file             = NULL;
 544 int     debug_notall[]         = {
 545   Di_memory,
 546   -1
 547 };
 548 bit_table debug_options[]      = { /* must be in alphabetical order */
 549   BIT_TABLE(D, acl),
 550   BIT_TABLE(D, all),
 551   BIT_TABLE(D, auth),
 552   BIT_TABLE(D, deliver),
 553   BIT_TABLE(D, dns),
 554   BIT_TABLE(D, dnsbl),
 555   BIT_TABLE(D, exec),
 556   BIT_TABLE(D, expand),
 557   BIT_TABLE(D, filter),
 558   BIT_TABLE(D, hints_lookup),
 559   BIT_TABLE(D, host_lookup),
 560   BIT_TABLE(D, ident),
 561   BIT_TABLE(D, interface),
 562   BIT_TABLE(D, lists),
 563   BIT_TABLE(D, load),
 564   BIT_TABLE(D, local_scan),
 565   BIT_TABLE(D, lookup),
 566   BIT_TABLE(D, memory),
 567   BIT_TABLE(D, pid),
 568   BIT_TABLE(D, process_info),
 569   BIT_TABLE(D, queue_run),
 570   BIT_TABLE(D, receive),
 571   BIT_TABLE(D, resolver),
 572   BIT_TABLE(D, retry),
 573   BIT_TABLE(D, rewrite),
 574   BIT_TABLE(D, route),
 575   BIT_TABLE(D, timestamp),
 576   BIT_TABLE(D, tls),
 577   BIT_TABLE(D, transport),
 578   BIT_TABLE(D, uid),
 579   BIT_TABLE(D, verify),
 580 };
 581 int     debug_options_count    = nelem(debug_options);
 582
 583 unsigned int debug_selector    = 0;
 584 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 585 uschar *delay_warning_condition=
 586   US"${if or {"
 587             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 588             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 589             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 590             "} {no}{yes}}";
 591 BOOL    delivery_date_remove   = TRUE;
 592 uschar *deliver_address_data   = NULL;
 593 int     deliver_datafile       = -1;
 594 const uschar *deliver_domain   = NULL;
 595 uschar *deliver_domain_data    = NULL;
 596 const uschar *deliver_domain_orig = NULL;
 597 const uschar *deliver_domain_parent = NULL;
 598 BOOL    deliver_drop_privilege = FALSE;
 599 BOOL    deliver_firsttime      = FALSE;
 600 BOOL    deliver_force          = FALSE;
 601 BOOL    deliver_freeze         = FALSE;
 602 time_t  deliver_frozen_at      = 0;
 603 uschar *deliver_home           = NULL;
 604 const uschar *deliver_host     = NULL;
 605 const uschar *deliver_host_address = NULL;
 606 int     deliver_host_port      = 0;
 607 uschar *deliver_in_buffer      = NULL;
 608 ino_t   deliver_inode          = 0;
 609 uschar *deliver_localpart      = NULL;
 610 uschar *deliver_localpart_data = NULL;
 611 uschar *deliver_localpart_orig = NULL;
 612 uschar *deliver_localpart_parent = NULL;
 613 uschar *deliver_localpart_prefix = NULL;
 614 uschar *deliver_localpart_suffix = NULL;
 615 BOOL    deliver_force_thaw     = FALSE;
 616 BOOL    deliver_manual_thaw    = FALSE;
 617 uschar *deliver_out_buffer     = NULL;
 618 int     deliver_queue_load_max = -1;
 619 address_item  *deliver_recipients = NULL;
 620 uschar *deliver_selectstring   = NULL;
 621 BOOL    deliver_selectstring_regex = FALSE;
 622 uschar *deliver_selectstring_sender = NULL;
 623 BOOL    deliver_selectstring_sender_regex = FALSE;
 624 #ifdef WITH_OLD_DEMIME
 625 int     demime_errorlevel      = 0;
 626 int     demime_ok              = 0;
 627 uschar *demime_reason          = NULL;
 628 #endif
 629 BOOL    disable_callout_flush  = FALSE;
 630 BOOL    disable_delay_flush    = FALSE;
 631 #ifdef ENABLE_DISABLE_FSYNC
 632 BOOL    disable_fsync          = FALSE;
 633 #endif
 634 BOOL    disable_ipv6           = FALSE;
 635 BOOL    disable_logging        = FALSE;
 636
 637 #ifndef DISABLE_DKIM
 638 uschar *dkim_cur_signer          = NULL;
 639 uschar *dkim_signers             = NULL;
 640 uschar *dkim_signing_domain      = NULL;
 641 uschar *dkim_signing_selector    = NULL;
 642 uschar *dkim_verify_signers      = US"$dkim_signers";
 643 BOOL    dkim_collect_input       = FALSE;
 644 BOOL    dkim_disable_verify      = FALSE;
 645 #endif
 646 #ifdef EXPERIMENTAL_DMARC
 647 BOOL    dmarc_has_been_checked  = FALSE;
 648 uschar *dmarc_ar_header         = NULL;
 649 uschar *dmarc_domain_policy     = NULL;
 650 uschar *dmarc_forensic_sender   = NULL;
 651 uschar *dmarc_history_file      = NULL;
 652 uschar *dmarc_status            = NULL;
 653 uschar *dmarc_status_text       = NULL;
 654 uschar *dmarc_tld_file          = NULL;
 655 uschar *dmarc_used_domain       = NULL;
 656 BOOL    dmarc_disable_verify    = FALSE;
 657 BOOL    dmarc_enable_forensic   = FALSE;
 658 #endif
 659
 660 uschar *dns_again_means_nonexist = NULL;
 661 int     dns_csa_search_limit   = 5;
 662 BOOL    dns_csa_use_reverse    = TRUE;
 663 #ifdef EXPERIMENTAL_DANE
 664 int     dns_dane_ok            = -1;
 665 #endif
 666 uschar *dns_ipv4_lookup        = NULL;
 667 int     dns_retrans            = 0;
 668 int     dns_retry              = 0;
 669 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 670 uschar *dns_trust_aa           = NULL;
 671 int     dns_use_edns0          = -1; /* <0 = not coerced */
 672 uschar *dnslist_domain         = NULL;
 673 uschar *dnslist_matched        = NULL;
 674 uschar *dnslist_text           = NULL;
 675 uschar *dnslist_value          = NULL;
 676 tree_node *domainlist_anchor   = NULL;
 677 int     domainlist_count       = 0;
 678 BOOL    dont_deliver           = FALSE;
 679 BOOL    dot_ends               = TRUE;
 680 BOOL    drop_cr                = FALSE;         /* No longer used */
 681 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 682
 683 BOOL    enable_dollar_recipients = FALSE;
 684 BOOL    envelope_to_remove     = TRUE;
 685 int     errno_quota            = ERRNO_QUOTA;
 686 uschar *errors_copy            = NULL;
 687 int     error_handling         = ERRORS_SENDER;
 688 uschar *errors_reply_to        = NULL;
 689 int     errors_sender_rc       = EXIT_FAILURE;
 690 #ifdef EXPERIMENTAL_EVENT
 691 uschar *event_action             = NULL;        /* expansion for delivery events */
 692 uschar *event_data               = NULL;        /* auxilary data variable for event */
 693 int     event_defer_errno        = 0;
 694 const uschar *event_name         = NULL;        /* event name variable */
 695 #endif
 696
 697
 698 gid_t   exim_gid               = EXIM_GID;
 699 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 700 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 701                         "\0<---------------Space to patch exim_path->";
 702 uid_t   exim_uid               = EXIM_UID;
 703 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 704 int     expand_forbid          = 0;
 705 int     expand_nlength[EXPAND_MAXN+1];
 706 int     expand_nmax            = -1;
 707 uschar *expand_nstring[EXPAND_MAXN+1];
 708 BOOL    expand_string_forcedfail = FALSE;
 709 uschar *expand_string_message;
 710 BOOL    extract_addresses_remove_arguments = TRUE;
 711 uschar *extra_local_interfaces = NULL;
 712
 713 int     fake_response          = OK;
 714 uschar *fake_response_text     = US"Your message has been rejected but is "
 715                                    "being kept for evaluation.\nIf it was a "
 716                                    "legitimate message, it may still be "
 717                                    "delivered to the target recipient(s).";
 718 int     filter_n[FILTER_VARIABLE_COUNT];
 719 BOOL    filter_running         = FALSE;
 720 int     filter_sn[FILTER_VARIABLE_COUNT];
 721 int     filter_test            = FTEST_NONE;
 722 uschar *filter_test_sfile      = NULL;
 723 uschar *filter_test_ufile      = NULL;
 724 uschar *filter_thisaddress     = NULL;
 725 int     finduser_retries       = 0;
 726 #ifdef WITH_OLD_DEMIME
 727 uschar *found_extension        = NULL;
 728 #endif
 729 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 730 uschar *freeze_tell            = NULL;
 731 uschar *freeze_tell_config     = NULL;
 732 uschar *fudged_queue_times     = US"";
 733
 734 uschar *gecos_name             = NULL;
 735 uschar *gecos_pattern          = NULL;
 736 rewrite_rule  *global_rewrite_rules = NULL;
 737
 738 uschar *headers_charset        = US HEADERS_CHARSET;
 739 int     header_insert_maxlen   = 64 * 1024;
 740 header_line  *header_last      = NULL;
 741 header_line  *header_list      = NULL;
 742 int     header_maxsize         = HEADER_MAXSIZE;
 743 int     header_line_maxsize    = 0;
 744
 745 header_name header_names[] = {
 746   { US"bcc",            3, TRUE,  htype_bcc },
 747   { US"cc",             2, TRUE,  htype_cc },
 748   { US"date",           4, TRUE,  htype_date },
 749   { US"delivery-date", 13, FALSE, htype_delivery_date },
 750   { US"envelope-to",   11, FALSE, htype_envelope_to },
 751   { US"from",           4, TRUE,  htype_from },
 752   { US"message-id",    10, TRUE,  htype_id },
 753   { US"received",       8, FALSE, htype_received },
 754   { US"reply-to",       8, FALSE, htype_reply_to },
 755   { US"return-path",   11, FALSE, htype_return_path },
 756   { US"sender",         6, TRUE,  htype_sender },
 757   { US"subject",        7, FALSE, htype_subject },
 758   { US"to",             2, TRUE,  htype_to }
 759 };
 760
 761 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 762
 763 BOOL    header_rewritten       = FALSE;
 764 uschar *helo_accept_junk_hosts = NULL;
 765 uschar *helo_allow_chars       = US"";
 766 uschar *helo_lookup_domains    = US"@ : @[]";
 767 uschar *helo_try_verify_hosts  = NULL;
 768 BOOL    helo_verified          = FALSE;
 769 BOOL    helo_verify_failed     = FALSE;
 770 uschar *helo_verify_hosts      = NULL;
 771 const uschar *hex_digits       = CUS"0123456789abcdef";
 772 uschar *hold_domains           = NULL;
 773 BOOL    host_checking          = FALSE;
 774 BOOL    host_checking_callout  = FALSE;
 775 uschar *host_data              = NULL;
 776 BOOL    host_find_failed_syntax= FALSE;
 777 uschar *host_lookup            = NULL;
 778 BOOL    host_lookup_deferred   = FALSE;
 779 BOOL    host_lookup_failed     = FALSE;
 780 uschar *host_lookup_order      = US"bydns:byaddr";
 781 uschar *host_lookup_msg        = US"";
 782 int     host_number            = 0;
 783 uschar *host_number_string     = NULL;
 784 uschar *host_reject_connection = NULL;
 785 tree_node *hostlist_anchor     = NULL;
 786 int     hostlist_count         = 0;
 787 uschar *hosts_treat_as_local   = NULL;
 788 uschar *hosts_connection_nolog = NULL;
 789
 790 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 791 BOOL    ignore_fromline_local  = FALSE;
 792 uschar *ignore_fromline_hosts  = NULL;
 793 BOOL    inetd_wait_mode        = FALSE;
 794 int     inetd_wait_timeout     = -1;
 795 uschar *interface_address      = NULL;
 796 int     interface_port         = -1;
 797 BOOL    is_inetd               = FALSE;
 798 uschar *iterate_item           = NULL;
 799
 800 int     journal_fd             = -1;
 801
 802 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 803
 804 uschar *eldap_dn               = NULL;
 805 int     load_average           = -2;
 806 BOOL    local_error_message    = FALSE;
 807 BOOL    local_from_check       = TRUE;
 808 uschar *local_from_prefix      = NULL;
 809 uschar *local_from_suffix      = NULL;
 810
 811 #if HAVE_IPV6
 812 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 813 #else
 814 uschar *local_interfaces       = US"0.0.0.0";
 815 #endif
 816
 817 uschar *local_scan_data        = NULL;
 818 int     local_scan_timeout     = 5*60;
 819 BOOL    local_sender_retain    = FALSE;
 820 gid_t   local_user_gid         = (gid_t)(-1);
 821 uid_t   local_user_uid         = (uid_t)(-1);
 822
 823 tree_node *localpartlist_anchor= NULL;
 824 int     localpartlist_count    = 0;
 825 uschar *log_buffer             = NULL;
 826
 827 int     log_default[]          = { /* for initializing log_selector */
 828   Li_acl_warn_skipped,
 829   Li_connection_reject,
 830   Li_delay_delivery,
 831   Li_dnslist_defer,
 832   Li_etrn,
 833   Li_host_lookup_failed,
 834   Li_lost_incoming_connection,
 835   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 836   Li_queue_run,
 837   Li_rejected_header,
 838   Li_retry_defer,
 839   Li_sender_verify_fail,
 840   Li_size_reject,
 841   Li_skip_delivery,
 842   Li_smtp_confirmation,
 843   Li_tls_certificate_verified,
 844   Li_tls_cipher,
 845   -1
 846 };
 847
 848 uschar *log_file_path          = US LOG_FILE_PATH
 849                            "\0<--------------Space to patch log_file_path->";
 850
 851 int     log_notall[]           = {
 852   -1
 853 };
 854 bit_table log_options[]        = { /* must be in alphabetical order */
 855   BIT_TABLE(L, 8bitmime),
 856   BIT_TABLE(L, acl_warn_skipped),
 857   BIT_TABLE(L, address_rewrite),
 858   BIT_TABLE(L, all),
 859   BIT_TABLE(L, all_parents),
 860   BIT_TABLE(L, arguments),
 861   BIT_TABLE(L, connection_reject),
 862   BIT_TABLE(L, delay_delivery),
 863   BIT_TABLE(L, deliver_time),
 864   BIT_TABLE(L, delivery_size),
 865   BIT_TABLE(L, dnslist_defer),
 866   BIT_TABLE(L, etrn),
 867   BIT_TABLE(L, host_lookup_failed),
 868   BIT_TABLE(L, ident_timeout),
 869   BIT_TABLE(L, incoming_interface),
 870   BIT_TABLE(L, incoming_port),
 871   BIT_TABLE(L, lost_incoming_connection),
 872   BIT_TABLE(L, outgoing_interface),
 873   BIT_TABLE(L, outgoing_port),
 874   BIT_TABLE(L, pid),
 875 #ifdef EXPERIMENTAL_PROXY
 876   BIT_TABLE(L, proxy),
 877 #endif
 878   BIT_TABLE(L, queue_run),
 879   BIT_TABLE(L, queue_time),
 880   BIT_TABLE(L, queue_time_overall),
 881   BIT_TABLE(L, received_recipients),
 882   BIT_TABLE(L, received_sender),
 883   BIT_TABLE(L, rejected_header),
 884   { US"rejected_headers", Li_rejected_header },
 885   BIT_TABLE(L, retry_defer),
 886   BIT_TABLE(L, return_path_on_delivery),
 887   BIT_TABLE(L, sender_on_delivery),
 888   BIT_TABLE(L, sender_verify_fail),
 889   BIT_TABLE(L, size_reject),
 890   BIT_TABLE(L, skip_delivery),
 891   BIT_TABLE(L, smtp_confirmation),
 892   BIT_TABLE(L, smtp_connection),
 893   BIT_TABLE(L, smtp_incomplete_transaction),
 894   BIT_TABLE(L, smtp_mailauth),
 895   BIT_TABLE(L, smtp_no_mail),
 896   BIT_TABLE(L, smtp_protocol_error),
 897   BIT_TABLE(L, smtp_syntax_error),
 898   BIT_TABLE(L, subject),
 899   BIT_TABLE(L, tls_certificate_verified),
 900   BIT_TABLE(L, tls_cipher),
 901   BIT_TABLE(L, tls_peerdn),
 902   BIT_TABLE(L, tls_sni),
 903   BIT_TABLE(L, unknown_in_list),
 904 };
 905 int     log_options_count      = nelem(log_options);
 906
 907 int     log_reject_target      = 0;
 908 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 909 uschar *log_selector_string    = NULL;
 910 FILE   *log_stderr             = NULL;
 911 BOOL    log_testing_mode       = FALSE;
 912 BOOL    log_timezone           = FALSE;
 913 uschar *login_sender_address   = NULL;
 914 uschar *lookup_dnssec_authenticated = NULL;
 915 int     lookup_open_max        = 25;
 916 uschar *lookup_value           = NULL;
 917
 918 macro_item  *macros            = NULL;
 919 uschar *mailstore_basename     = NULL;
 920 #ifdef WITH_CONTENT_SCAN
 921 uschar *malware_name           = NULL;  /* Virus Name */
 922 #endif
 923 int     max_received_linelength= 0;
 924 int     max_username_length    = 0;
 925 int     message_age            = 0;
 926 uschar *message_body           = NULL;
 927 uschar *message_body_end       = NULL;
 928 BOOL    message_body_newlines  = FALSE;
 929 int     message_body_size      = 0;
 930 int     message_body_visible   = 500;
 931 int     message_ended          = END_NOTSTARTED;
 932 uschar *message_headers        = NULL;
 933 uschar *message_id;
 934 uschar *message_id_domain      = NULL;
 935 uschar *message_id_text        = NULL;
 936 struct timeval message_id_tv   = { 0, 0 };
 937 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 938 uschar *message_id_external;
 939 int     message_linecount      = 0;
 940 BOOL    message_logs           = TRUE;
 941 int     message_size           = 0;
 942 uschar *message_size_limit     = US"50M";
 943 #ifdef EXPERIMENTAL_INTERNATIONAL
 944 BOOL    message_smtputf8       = FALSE;
 945 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 946 #endif
 947 uschar  message_subdir[2]      = { 0, 0 };
 948 uschar *message_reference      = NULL;
 949
 950 /* MIME ACL expandables */
 951 #ifdef WITH_CONTENT_SCAN
 952 int     mime_anomaly_level     = 0;
 953 const uschar *mime_anomaly_text      = NULL;
 954 uschar *mime_boundary          = NULL;
 955 uschar *mime_charset           = NULL;
 956 uschar *mime_content_description = NULL;
 957 uschar *mime_content_disposition = NULL;
 958 uschar *mime_content_id        = NULL;
 959 unsigned int mime_content_size = 0;
 960 uschar *mime_content_transfer_encoding = NULL;
 961 uschar *mime_content_type      = NULL;
 962 uschar *mime_decoded_filename  = NULL;
 963 uschar *mime_filename          = NULL;
 964 int     mime_is_multipart      = 0;
 965 int     mime_is_coverletter    = 0;
 966 int     mime_is_rfc822         = 0;
 967 int     mime_part_count        = -1;
 968 #endif
 969
 970 BOOL    mua_wrapper            = FALSE;
 971
 972 uid_t  *never_users            = NULL;
 973 #ifdef WITH_CONTENT_SCAN
 974 BOOL    no_mbox_unspool        = FALSE;
 975 #endif
 976 BOOL    no_multiline_responses = FALSE;
 977
 978 uid_t   original_euid;
 979 gid_t   originator_gid;
 980 uschar *originator_login       = NULL;
 981 uschar *originator_name        = NULL;
 982 uid_t   originator_uid;
 983 uschar *override_local_interfaces = NULL;
 984 uschar *override_pid_file_path = NULL;
 985
 986 BOOL    parse_allow_group      = FALSE;
 987 BOOL    parse_found_group      = FALSE;
 988 uschar *percent_hack_domains   = NULL;
 989 uschar *pid_file_path          = US PID_FILE_PATH
 990                            "\0<--------------Space to patch pid_file_path->";
 991 BOOL    pipelining_enable      = TRUE;
 992 uschar *pipelining_advertise_hosts = US"*";
 993 BOOL    preserve_message_logs  = FALSE;
 994 uschar *primary_hostname       = NULL;
 995 BOOL    print_topbitchars      = FALSE;
 996 uschar  process_info[PROCESS_INFO_SIZE];
 997 int     process_info_len       = 0;
 998 uschar *process_log_path       = NULL;
 999 BOOL    prod_requires_admin    = TRUE;
1000
1001 #ifdef EXPERIMENTAL_PROXY
1002 uschar *proxy_host_address     = US"";
1003 int     proxy_host_port        = 0;
1004 uschar *proxy_required_hosts   = US"";
1005 BOOL    proxy_session          = FALSE;
1006 BOOL    proxy_session_failed   = FALSE;
1007 uschar *proxy_target_address   = US"";
1008 int     proxy_target_port      = 0;
1009 #endif
1010
1011 uschar *prvscheck_address      = NULL;
1012 uschar *prvscheck_keynum       = NULL;
1013 uschar *prvscheck_result       = NULL;
1014
1015
1016 const uschar *qualify_domain_recipient = NULL;
1017 uschar *qualify_domain_sender  = NULL;
1018 BOOL    queue_2stage           = FALSE;
1019 uschar *queue_domains          = NULL;
1020 int     queue_interval         = -1;
1021 BOOL    queue_list_requires_admin = TRUE;
1022 BOOL    queue_only             = FALSE;
1023 uschar *queue_only_file        = NULL;
1024 int     queue_only_load        = -1;
1025 BOOL    queue_only_load_latch  = TRUE;
1026 BOOL    queue_only_override    = TRUE;
1027 BOOL    queue_only_policy      = FALSE;
1028 BOOL    queue_run_first_delivery = FALSE;
1029 BOOL    queue_run_force        = FALSE;
1030 BOOL    queue_run_in_order     = FALSE;
1031 BOOL    queue_run_local        = FALSE;
1032 int     queue_run_max          = 5;
1033 pid_t   queue_run_pid          = (pid_t)0;
1034 int     queue_run_pipe         = -1;
1035 BOOL    queue_running          = FALSE;
1036 BOOL    queue_smtp             = FALSE;
1037 uschar *queue_smtp_domains     = NULL;
1038
1039 unsigned int random_seed       = 0;
1040 tree_node *ratelimiters_cmd    = NULL;
1041 tree_node *ratelimiters_conn   = NULL;
1042 tree_node *ratelimiters_mail   = NULL;
1043 uschar *raw_active_hostname    = NULL;
1044 uschar *raw_sender             = NULL;
1045 uschar **raw_recipients        = NULL;
1046 int     raw_recipients_count   = 0;
1047
1048 int     rcpt_count             = 0;
1049 int     rcpt_fail_count        = 0;
1050 int     rcpt_defer_count       = 0;
1051 gid_t   real_gid;
1052 uid_t   real_uid;
1053 BOOL    really_exim            = TRUE;
1054 BOOL    receive_call_bombout   = FALSE;
1055 int     receive_linecount      = 0;
1056 int     receive_messagecount   = 0;
1057 int     receive_timeout        = 0;
1058 int     received_count         = 0;
1059 uschar *received_for           = NULL;
1060
1061 /*  This is the default text for Received headers generated by Exim. The
1062 date  will be automatically added on the end. */
1063
1064 uschar *received_header_text   = US
1065      "Received: "
1066      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1067      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1068      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1069      "by $primary_hostname "
1070      "${if def:received_protocol {with $received_protocol}} "
1071      #ifdef SUPPORT_TLS
1072      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1073      #endif
1074      "(Exim $version_number)\n\t"
1075      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1076      "id $message_exim_id"
1077      "${if def:received_for {\n\tfor $received_for}}"
1078      "\0<---------------Space to patch received_header_text->";
1079
1080 int     received_headers_max   = 30;
1081 uschar *received_protocol      = NULL;
1082 int     received_time          = 0;
1083 uschar *recipient_data         = NULL;
1084 uschar *recipient_unqualified_hosts = NULL;
1085 uschar *recipient_verify_failure = NULL;
1086 int     recipients_count       = 0;
1087 BOOL    recipients_discarded   = FALSE;
1088 recipient_item  *recipients_list = NULL;
1089 int     recipients_list_max    = 0;
1090 int     recipients_max         = 0;
1091 BOOL    recipients_max_reject  = FALSE;
1092 const pcre *regex_AUTH         = NULL;
1093 const pcre *regex_check_dns_names = NULL;
1094 const pcre *regex_From         = NULL;
1095 const pcre *regex_IGNOREQUOTA  = NULL;
1096 const pcre *regex_PIPELINING   = NULL;
1097 const pcre *regex_SIZE         = NULL;
1098 const pcre *regex_ismsgid      = NULL;
1099 const pcre *regex_smtp_code    = NULL;
1100 uschar *regex_vars[REGEX_VARS];
1101 #ifdef WHITELIST_D_MACROS
1102 const pcre *regex_whitelisted_macro = NULL;
1103 #endif
1104 #ifdef WITH_CONTENT_SCAN
1105 uschar *regex_match_string     = NULL;
1106 #endif
1107 int     remote_delivery_count  = 0;
1108 int     remote_max_parallel    = 2;
1109 uschar *remote_sort_domains    = NULL;
1110 int     retry_data_expire      = 7*24*60*60;
1111 int     retry_interval_max     = 24*60*60;
1112 int     retry_maximum_timeout  = 0;        /* set from retry config */
1113 retry_config  *retries         = NULL;
1114 uschar *return_path            = NULL;
1115 BOOL    return_path_remove     = TRUE;
1116 int     rewrite_existflags     = 0;
1117 uschar *rfc1413_hosts          = US"@[]";
1118 int     rfc1413_query_timeout  = 0;
1119 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1120 uid_t   root_gid               = ROOT_GID;
1121 uid_t   root_uid               = ROOT_UID;
1122
1123 router_instance  *routers  = NULL;
1124 router_instance  router_defaults = {
1125     NULL,                      /* chain pointer */
1126     NULL,                      /* name */
1127     NULL,                      /* info */
1128     NULL,                      /* private options block pointer */
1129     NULL,                      /* driver name */
1130
1131     NULL,                      /* address_data */
1132 #ifdef EXPERIMENTAL_BRIGHTMAIL
1133     NULL,                      /* bmi_rule */
1134 #endif
1135     NULL,                      /* cannot_route_message */
1136     NULL,                      /* condition */
1137     NULL,                      /* current_directory */
1138     NULL,                      /* debug_string */
1139     NULL,                      /* domains */
1140     NULL,                      /* errors_to */
1141     NULL,                      /* expand_gid */
1142     NULL,                      /* expand_uid */
1143     NULL,                      /* expand_more */
1144     NULL,                      /* expand_unseen */
1145     NULL,                      /* extra_headers */
1146     NULL,                      /* fallback_hosts */
1147     NULL,                      /* home_directory */
1148     NULL,                      /* ignore_target_hosts */
1149     NULL,                      /* local_parts */
1150     NULL,                      /* pass_router_name */
1151     NULL,                      /* prefix */
1152     NULL,                      /* redirect_router_name */
1153     NULL,                      /* remove_headers */
1154     NULL,                      /* require_files */
1155     NULL,                      /* router_home_directory */
1156     US"freeze",                /* self */
1157     NULL,                      /* senders */
1158     NULL,                      /* suffix */
1159     NULL,                      /* translate_ip_address */
1160     NULL,                      /* transport_name */
1161
1162     TRUE,                      /* address_test */
1163 #ifdef EXPERIMENTAL_BRIGHTMAIL
1164     FALSE,                     /* bmi_deliver_alternate */
1165     FALSE,                     /* bmi_deliver_default */
1166     FALSE,                     /* bmi_dont_deliver */
1167 #endif
1168     TRUE,                      /* expn */
1169     FALSE,                     /* caseful_local_part */
1170     FALSE,                     /* check_local_user */
1171     FALSE,                     /* disable_logging */
1172     FALSE,                     /* fail_verify_recipient */
1173     FALSE,                     /* fail_verify_sender */
1174     FALSE,                     /* gid_set */
1175     FALSE,                     /* initgroups */
1176     TRUE_UNSET,                /* log_as_local */
1177     TRUE,                      /* more */
1178     FALSE,                     /* pass_on_timeout */
1179     FALSE,                     /* prefix_optional */
1180     TRUE,                      /* repeat_use */
1181     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1182     FALSE,                     /* same_domain_copy_routing */
1183     FALSE,                     /* self_rewrite */
1184     FALSE,                     /* suffix_optional */
1185     FALSE,                     /* verify_only */
1186     TRUE,                      /* verify_recipient */
1187     TRUE,                      /* verify_sender */
1188     FALSE,                     /* uid_set */
1189     FALSE,                     /* unseen */
1190     FALSE,                     /* dsn_lasthop */
1191
1192     self_freeze,               /* self_code */
1193     (uid_t)(-1),               /* uid */
1194     (gid_t)(-1),               /* gid */
1195
1196     NULL,                      /* fallback_hostlist */
1197     NULL,                      /* transport instance */
1198     NULL,                      /* pass_router */
1199     NULL,                      /* redirect_router */
1200
1201     { NULL, NULL },            /* dnssec_domains {require,request} */
1202 };
1203
1204 uschar *router_name            = NULL;
1205
1206 ip_address_item *running_interfaces = NULL;
1207 BOOL    running_in_test_harness = FALSE;
1208
1209 /* This is a weird one. The following string gets patched in the binary by the
1210 script that sets up a copy of Exim for running in the test harness. It seems
1211 that compilers are now clever, and share constant strings if they can.
1212 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1213 make use of the end of this string in order to save space. So the patching then
1214 wrecks this. We defeat this optimization by adding some additional characters
1215 onto the end of the string. */
1216
1217 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1218
1219 int     runrc                  = 0;
1220
1221 uschar *search_error_message   = NULL;
1222 BOOL    search_find_defer      = FALSE;
1223 uschar *self_hostname          = NULL;
1224 uschar *sender_address         = NULL;
1225 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1226 uschar *sender_address_data    = NULL;
1227 BOOL    sender_address_forced  = FALSE;
1228 uschar *sender_address_unrewritten = NULL;
1229 uschar *sender_data            = NULL;
1230 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1231 uschar *sender_fullhost        = NULL;
1232 BOOL    sender_helo_dnssec     = FALSE;
1233 uschar *sender_helo_name       = NULL;
1234 uschar **sender_host_aliases   = &no_aliases;
1235 uschar *sender_host_address    = NULL;
1236 uschar *sender_host_authenticated = NULL;
1237 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1238 BOOL    sender_host_dnssec     = FALSE;
1239 uschar *sender_host_name       = NULL;
1240 int     sender_host_port       = 0;
1241 BOOL    sender_host_notsocket  = FALSE;
1242 BOOL    sender_host_unknown    = FALSE;
1243 uschar *sender_ident           = NULL;
1244 BOOL    sender_local           = FALSE;
1245 BOOL    sender_name_forced     = FALSE;
1246 uschar *sender_rate            = NULL;
1247 uschar *sender_rate_limit      = NULL;
1248 uschar *sender_rate_period     = NULL;
1249 uschar *sender_rcvhost         = NULL;
1250 BOOL    sender_set_untrusted   = FALSE;
1251 uschar *sender_unqualified_hosts = NULL;
1252 uschar *sender_verify_failure = NULL;
1253 address_item *sender_verified_list  = NULL;
1254 address_item *sender_verified_failed = NULL;
1255 int     sender_verified_rc     = -1;
1256 BOOL    sender_verified_responded = FALSE;
1257 uschar *sending_ip_address     = NULL;
1258 int     sending_port           = -1;
1259 SIGNAL_BOOL sigalrm_seen       = FALSE;
1260 uschar **sighup_argv           = NULL;
1261 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1262 int     smtp_accept_count      = 0;
1263 BOOL    smtp_accept_keepalive  = TRUE;
1264 int     smtp_accept_max        = 20;
1265 int     smtp_accept_max_nonmail= 10;
1266 uschar *smtp_accept_max_nonmail_hosts = US"*";
1267 int     smtp_accept_max_per_connection = 1000;
1268 uschar *smtp_accept_max_per_host = NULL;
1269 int     smtp_accept_queue      = 0;
1270 int     smtp_accept_queue_per_connection = 10;
1271 int     smtp_accept_reserve    = 0;
1272 uschar *smtp_active_hostname   = NULL;
1273 BOOL    smtp_authenticated     = FALSE;
1274 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1275                              "Exim $version_number $tod_full"
1276                              "\0<---------------Space to patch smtp_banner->";
1277 BOOL    smtp_batched_input     = FALSE;
1278 BOOL    smtp_check_spool_space = TRUE;
1279 int     smtp_ch_index          = 0;
1280 uschar *smtp_cmd_argument      = NULL;
1281 uschar *smtp_cmd_buffer        = NULL;
1282 time_t  smtp_connection_start  = 0;
1283 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1284 int     smtp_connect_backlog   = 20;
1285 double  smtp_delay_mail        = 0.0;
1286 double  smtp_delay_rcpt        = 0.0;
1287 BOOL    smtp_enforce_sync      = TRUE;
1288 FILE   *smtp_in                = NULL;
1289 BOOL    smtp_input             = FALSE;
1290 int     smtp_load_reserve      = -1;
1291 int     smtp_mailcmd_count     = 0;
1292 FILE   *smtp_out               = NULL;
1293 uschar *smtp_etrn_command      = NULL;
1294 BOOL    smtp_etrn_serialize    = TRUE;
1295 int     smtp_max_synprot_errors= 3;
1296 int     smtp_max_unknown_commands = 3;
1297 uschar *smtp_notquit_reason    = NULL;
1298 uschar *smtp_ratelimit_hosts   = NULL;
1299 uschar *smtp_ratelimit_mail    = NULL;
1300 uschar *smtp_ratelimit_rcpt    = NULL;
1301 uschar *smtp_read_error        = US"";
1302 int     smtp_receive_timeout   = 5*60;
1303 uschar *smtp_receive_timeout_s = NULL;
1304 uschar *smtp_reserve_hosts     = NULL;
1305 BOOL    smtp_return_error_details = FALSE;
1306 int     smtp_rlm_base          = 0;
1307 double  smtp_rlm_factor        = 0.0;
1308 int     smtp_rlm_limit         = 0;
1309 int     smtp_rlm_threshold     = INT_MAX;
1310 int     smtp_rlr_base          = 0;
1311 double  smtp_rlr_factor        = 0.0;
1312 int     smtp_rlr_limit         = 0;
1313 int     smtp_rlr_threshold     = INT_MAX;
1314 BOOL    smtp_use_pipelining    = FALSE;
1315 BOOL    smtp_use_size          = FALSE;
1316 #ifdef EXPERIMENTAL_INTERNATIONAL
1317 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1318 #endif
1319
1320 #ifdef WITH_CONTENT_SCAN
1321 uschar *spamd_address          = US"127.0.0.1 783";
1322 uschar *spam_bar               = NULL;
1323 uschar *spam_report            = NULL;
1324 uschar *spam_action            = NULL;
1325 uschar *spam_score             = NULL;
1326 uschar *spam_score_int         = NULL;
1327 #endif
1328 #ifdef EXPERIMENTAL_SPF
1329 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1330 uschar *spf_header_comment     = NULL;
1331 uschar *spf_received           = NULL;
1332 uschar *spf_result             = NULL;
1333 uschar *spf_smtp_comment       = NULL;
1334 #endif
1335
1336 BOOL    split_spool_directory  = FALSE;
1337 uschar *spool_directory        = US SPOOL_DIRECTORY
1338                            "\0<--------------Space to patch spool_directory->";
1339 #ifdef EXPERIMENTAL_SRS
1340 uschar *srs_config             = NULL;
1341 uschar *srs_db_address         = NULL;
1342 uschar *srs_db_key             = NULL;
1343 int     srs_hashlength         = 6;
1344 int     srs_hashmin            = -1;
1345 int     srs_maxage             = 31;
1346 uschar *srs_orig_recipient     = NULL;
1347 uschar *srs_orig_sender        = NULL;
1348 uschar *srs_recipient          = NULL;
1349 uschar *srs_secrets            = NULL;
1350 uschar *srs_status             = NULL;
1351 BOOL    srs_usehash            = TRUE;
1352 BOOL    srs_usetimestamp       = TRUE;
1353 #endif
1354 BOOL    strict_acl_vars        = FALSE;
1355 int     string_datestamp_offset= -1;
1356 int     string_datestamp_length= 0;
1357 int     string_datestamp_type  = -1;
1358 BOOL    strip_excess_angle_brackets = FALSE;
1359 BOOL    strip_trailing_dot     = FALSE;
1360 uschar *submission_domain      = NULL;
1361 BOOL    submission_mode        = FALSE;
1362 uschar *submission_name        = NULL;
1363 BOOL    suppress_local_fixups  = FALSE;
1364 BOOL    suppress_local_fixups_default = FALSE;
1365 BOOL    synchronous_delivery   = FALSE;
1366 BOOL    syslog_duplication     = TRUE;
1367 int     syslog_facility        = LOG_MAIL;
1368 uschar *syslog_processname     = US"exim";
1369 BOOL    syslog_timestamp       = TRUE;
1370 uschar *system_filter          = NULL;
1371
1372 uschar *system_filter_directory_transport = NULL;
1373 uschar *system_filter_file_transport = NULL;
1374 uschar *system_filter_pipe_transport = NULL;
1375 uschar *system_filter_reply_transport = NULL;
1376
1377 gid_t   system_filter_gid      = 0;
1378 BOOL    system_filter_gid_set  = FALSE;
1379 uid_t   system_filter_uid      = (uid_t)-1;
1380 BOOL    system_filter_uid_set  = FALSE;
1381 BOOL    system_filtering       = FALSE;
1382
1383 BOOL    tcp_nodelay            = TRUE;
1384 #ifdef USE_TCP_WRAPPERS
1385 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1386 #endif
1387 int     test_harness_load_avg  = 0;
1388 int     thismessage_size_limit = 0;
1389 int     timeout_frozen_after   = 0;
1390 BOOL    timestamps_utc         = FALSE;
1391
1392 transport_instance  *transports = NULL;
1393
1394 transport_instance  transport_defaults = {
1395     NULL,                     /* chain pointer */
1396     NULL,                     /* name */
1397     NULL,                     /* info */
1398     NULL,                     /* private options block pointer */
1399     NULL,                     /* driver name */
1400     NULL,                     /* setup entry point */
1401     1,                        /* batch_max */
1402     NULL,                     /* batch_id */
1403     NULL,                     /* home_dir */
1404     NULL,                     /* current_dir */
1405     NULL,                     /* expand-multi-domain */
1406     TRUE,                     /* multi-domain */
1407     FALSE,                    /* overrides_hosts */
1408     100,                      /* max_addresses */
1409     500,                      /* connection_max_messages */
1410     FALSE,                    /* deliver_as_creator */
1411     FALSE,                    /* disable_logging */
1412     FALSE,                    /* initgroups */
1413     FALSE,                    /* uid_set */
1414     FALSE,                    /* gid_set */
1415     (uid_t)(-1),              /* uid */
1416     (gid_t)(-1),              /* gid */
1417     NULL,                     /* expand_uid */
1418     NULL,                     /* expand_gid */
1419     NULL,                     /* warn_message */
1420     NULL,                     /* shadow */
1421     NULL,                     /* shadow_condition */
1422     NULL,                     /* filter_command */
1423     NULL,                     /* add_headers */
1424     NULL,                     /* remove_headers */
1425     NULL,                     /* return_path */
1426     NULL,                     /* debug_string */
1427     NULL,                     /* max_parallel */
1428     NULL,                     /* message_size_limit */
1429     NULL,                     /* headers_rewrite */
1430     NULL,                     /* rewrite_rules */
1431     0,                        /* rewrite_existflags */
1432     300,                      /* filter_timeout */
1433     FALSE,                    /* body_only */
1434     FALSE,                    /* delivery_date_add */
1435     FALSE,                    /* envelope_to_add */
1436     FALSE,                    /* headers_only */
1437     FALSE,                    /* rcpt_include_affixes */
1438     FALSE,                    /* return_path_add */
1439     FALSE,                    /* return_output */
1440     FALSE,                    /* return_fail_output */
1441     FALSE,                    /* log_output */
1442     FALSE,                    /* log_fail_output */
1443     FALSE,                    /* log_defer_output */
1444     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1445                                  1 nor 0 so can detect unset */
1446 #ifdef EXPERIMENTAL_EVENT
1447    ,NULL                      /* event_action */
1448 #endif
1449 };
1450
1451 int     transport_count;
1452 uschar *transport_name          = NULL;
1453 int     transport_newlines;
1454 const uschar **transport_filter_argv  = NULL;
1455 int     transport_filter_timeout;
1456 BOOL    transport_filter_timed_out = FALSE;
1457 int     transport_write_timeout= 0;
1458
1459 tree_node  *tree_dns_fails     = NULL;
1460 tree_node  *tree_duplicates    = NULL;
1461 tree_node  *tree_nonrecipients = NULL;
1462 tree_node  *tree_unusable      = NULL;
1463
1464 BOOL    trusted_caller         = FALSE;
1465 BOOL    trusted_config         = TRUE;
1466 gid_t  *trusted_groups         = NULL;
1467 uid_t  *trusted_users          = NULL;
1468 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1469
1470 uschar *unknown_login          = NULL;
1471 uschar *unknown_username       = NULL;
1472 uschar *untrusted_set_sender   = NULL;
1473
1474 /*  A regex for matching a "From_" line in an incoming message, in the form
1475
1476     From ph10 Fri Jan  5 12:35 GMT 1996
1477
1478 which  the "mail" commands send to the MTA (undocumented, of course), or in
1479 the  form
1480
1481     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1482
1483 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1484 Because  of variations in time formats, just match up to the minutes. That
1485 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1486 so  just require one digit for hours and minutes. The weekday is also absent
1487 in  some forms. */
1488
1489 uschar *uucp_from_pattern      = US
1490    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1491    "(?:"                                          /* Non-extracting bracket */
1492    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1493    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1494    ")"                                            /* End alternation */
1495    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1496
1497 uschar *uucp_from_sender       = US"$1";
1498
1499 uschar *verify_mode            = NULL;
1500 uschar *version_copyright      =
1501  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1502    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1503 uschar *version_date           = US"?";
1504 uschar *version_cnumber        = US"????";
1505 uschar *version_string         = US"?";
1506
1507 uschar *warn_message_file      = NULL;
1508 int     warning_count          = 0;
1509 uschar *warnmsg_delay          = NULL;
1510 uschar *warnmsg_recipients     = NULL;
1511 BOOL    write_rejectlog        = TRUE;
1512
1513
1514 /*  End of globals.c */