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 uschar *add_environment        = NULL;
 324 address_item  *addr_duplicate  = NULL;
 325
 326 address_item address_defaults = {
 327   NULL,                 /* next */
 328   NULL,                 /* parent */
 329   NULL,                 /* first */
 330   NULL,                 /* dupof */
 331   NULL,                 /* start_router */
 332   NULL,                 /* router */
 333   NULL,                 /* transport */
 334   NULL,                 /* host_list */
 335   NULL,                 /* host_used */
 336   NULL,                 /* fallback_hosts */
 337   NULL,                 /* reply */
 338   NULL,                 /* retries */
 339   NULL,                 /* address */
 340   NULL,                 /* unique */
 341   NULL,                 /* cc_local_part */
 342   NULL,                 /* lc_local_part */
 343   NULL,                 /* local_part */
 344   NULL,                 /* prefix */
 345   NULL,                 /* suffix */
 346   NULL,                 /* domain */
 347   NULL,                 /* address_retry_key */
 348   NULL,                 /* domain_retry_key */
 349   NULL,                 /* current_dir */
 350   NULL,                 /* home_dir */
 351   NULL,                 /* message */
 352   NULL,                 /* user_message */
 353   NULL,                 /* onetime_parent */
 354   NULL,                 /* pipe_expandn */
 355   NULL,                 /* return_filename */
 356   NULL,                 /* self_hostname */
 357   NULL,                 /* shadow_message */
 358   #ifdef SUPPORT_TLS
 359   NULL,                 /* cipher */
 360   NULL,                 /* ourcert */
 361   NULL,                 /* peercert */
 362   NULL,                 /* peerdn */
 363   OCSP_NOT_REQ,         /* ocsp */
 364   #endif
 365   NULL,                 /* authenticator */
 366   NULL,                 /* auth_id */
 367   NULL,                 /* auth_sndr */
 368   NULL,                 /* dsn_orcpt */
 369   0,                    /* dsn_flags */
 370   0,                    /* dsn_aware */
 371   (uid_t)(-1),          /* uid */
 372   (gid_t)(-1),          /* gid */
 373   0,                    /* flags */
 374   { 0 },                /* domain_cache - any larger array should be zeroed */
 375   { 0 },                /* localpart_cache - ditto */
 376   -1,                   /* mode */
 377   0,                    /* more_errno */
 378   ERRNO_UNKNOWNERROR,   /* basic_errno */
 379   0,                    /* child_count */
 380   -1,                   /* return_file */
 381   SPECIAL_NONE,         /* special_action */
 382   DEFER,                /* transport_return */
 383   {                     /* fields that are propagated to children */
 384     NULL,               /* address_data */
 385     NULL,               /* domain_data */
 386     NULL,               /* localpart_data */
 387     NULL,               /* errors_address */
 388     NULL,               /* extra_headers */
 389     NULL,               /* remove_headers */
 390 #ifdef EXPERIMENTAL_SRS
 391     NULL,               /* srs_sender */
 392 #endif
 393 #ifdef EXPERIMENTAL_INTERNATIONAL
 394     FALSE,              /* utf8 */
 395 #endif
 396   }
 397 };
 398
 399 uschar *address_file           = NULL;
 400 uschar *address_pipe           = NULL;
 401 BOOL    address_test_mode      = FALSE;
 402 tree_node *addresslist_anchor  = NULL;
 403 int     addresslist_count      = 0;
 404 gid_t  *admin_groups           = NULL;
 405 BOOL    admin_user             = FALSE;
 406 BOOL    allow_auth_unadvertised= FALSE;
 407 BOOL    allow_domain_literals  = FALSE;
 408 BOOL    allow_mx_to_ip         = FALSE;
 409 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 410 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 411 BOOL    allow_utf8_domains     = FALSE;
 412 uschar *authenticated_fail_id  = NULL;
 413 uschar *authenticated_id       = NULL;
 414 uschar *authenticated_sender   = NULL;
 415 BOOL    authentication_failed  = FALSE;
 416 auth_instance  *auths          = NULL;
 417 uschar *auth_advertise_hosts   = US"*";
 418 auth_instance auth_defaults    = {
 419     NULL,                      /* chain pointer */
 420     NULL,                      /* name */
 421     NULL,                      /* info */
 422     NULL,                      /* private options block pointer */
 423     NULL,                      /* driver_name */
 424     NULL,                      /* advertise_condition */
 425     NULL,                      /* client_condition */
 426     NULL,                      /* public_name */
 427     NULL,                      /* set_id */
 428     NULL,                      /* set_client_id */
 429     NULL,                      /* server_mail_auth_condition */
 430     NULL,                      /* server_debug_string */
 431     NULL,                      /* server_condition */
 432     FALSE,                     /* client */
 433     FALSE,                     /* server */
 434     FALSE                      /* advertised */
 435 };
 436
 437 uschar *auth_defer_msg         = US"reason not recorded";
 438 uschar *auth_defer_user_msg    = US"";
 439 uschar *auth_vars[AUTH_VARS];
 440 int     auto_thaw              = 0;
 441 #ifdef WITH_CONTENT_SCAN
 442 BOOL    av_failed              = FALSE;
 443 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 444 #endif
 445
 446 BOOL    background_daemon      = TRUE;
 447
 448 #if BASE_62 == 62
 449 uschar *base62_chars=
 450     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 451 #else
 452 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 453 #endif
 454
 455 uschar *bi_command             = NULL;
 456 uschar *big_buffer             = NULL;
 457 int     big_buffer_size        = BIG_BUFFER_SIZE;
 458 #ifdef EXPERIMENTAL_BRIGHTMAIL
 459 uschar *bmi_alt_location       = NULL;
 460 uschar *bmi_base64_tracker_verdict = NULL;
 461 uschar *bmi_base64_verdict     = NULL;
 462 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 463 int     bmi_deliver            = 1;
 464 int     bmi_run                = 0;
 465 uschar *bmi_verdicts           = NULL;
 466 #endif
 467 int     body_linecount         = 0;
 468 int     body_zerocount         = 0;
 469 uschar *bounce_message_file    = NULL;
 470 uschar *bounce_message_text    = NULL;
 471 uschar *bounce_recipient       = NULL;
 472 BOOL    bounce_return_body     = TRUE;
 473 BOOL    bounce_return_message  = TRUE;
 474 int     bounce_return_size_limit = 100*1024;
 475 uschar *bounce_sender_authentication = NULL;
 476 int     bsmtp_transaction_linecount = 0;
 477
 478 int     callout_cache_domain_positive_expire = 7*24*60*60;
 479 int     callout_cache_domain_negative_expire = 3*60*60;
 480 int     callout_cache_positive_expire = 24*60*60;
 481 int     callout_cache_negative_expire = 2*60*60;
 482 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 483 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 484 int     check_log_inodes       = 0;
 485 int     check_log_space        = 0;
 486 BOOL    check_rfc2047_length   = TRUE;
 487 int     check_spool_inodes     = 0;
 488 int     check_spool_space      = 0;
 489 uschar  *client_authenticator  = NULL;
 490 uschar  *client_authenticated_id = NULL;
 491 uschar  *client_authenticated_sender = NULL;
 492 int     clmacro_count          = 0;
 493 uschar *clmacros[MAX_CLMACROS];
 494 BOOL    config_changed         = FALSE;
 495 FILE   *config_file            = NULL;
 496 uschar *config_filename        = NULL;
 497 int     config_lineno          = 0;
 498 #ifdef CONFIGURE_GROUP
 499 gid_t   config_gid             = CONFIGURE_GROUP;
 500 #endif
 501 uschar *config_main_filelist   = US CONFIGURE_FILE
 502                          "\0<-----------Space to patch configure_filename->";
 503 uschar *config_main_filename   = NULL;
 504 uschar *config_main_directory  = NULL;
 505
 506 #ifdef CONFIGURE_OWNER
 507 uid_t   config_uid             = CONFIGURE_OWNER;
 508 #endif
 509
 510 int     connection_max_messages= -1;
 511 uschar *continue_hostname      = NULL;
 512 uschar *continue_host_address  = NULL;
 513 BOOL    continue_more          = FALSE;
 514 int     continue_sequence      = 1;
 515 uschar *continue_transport     = NULL;
 516
 517 uschar *csa_status             = NULL;
 518 cut_t   cutthrough = {
 519   FALSE,                                /* delivery: when to attempt */
 520   -1,                                   /* fd: open connection */
 521   0,                                    /* nrcpt: number of addresses */
 522 };
 523
 524 BOOL    daemon_listen          = FALSE;
 525 uschar *daemon_smtp_port       = US"smtp";
 526 int     daemon_startup_retries = 9;
 527 int     daemon_startup_sleep   = 30;
 528
 529 #ifdef EXPERIMENTAL_DCC
 530 BOOL    dcc_direct_add_header  = FALSE;
 531 uschar *dcc_header             = NULL;
 532 uschar *dcc_result             = NULL;
 533 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 534 uschar *dccifd_options         = US"header";
 535 #endif
 536
 537 BOOL    debug_daemon           = FALSE;
 538 int     debug_fd               = -1;
 539 FILE   *debug_file             = NULL;
 540 bit_table debug_options[]      = {
 541   { US"acl",            D_acl },
 542   { US"all",            D_all },
 543   { US"auth",           D_auth },
 544   { US"deliver",        D_deliver },
 545   { US"dns",            D_dns },
 546   { US"dnsbl",          D_dnsbl },
 547   { US"exec",           D_exec },
 548   { US"expand",         D_expand },
 549   { US"filter",         D_filter },
 550   { US"hints_lookup",   D_hints_lookup },
 551   { US"host_lookup",    D_host_lookup },
 552   { US"ident",          D_ident },
 553   { US"interface",      D_interface },
 554   { US"lists",          D_lists },
 555   { US"load",           D_load },
 556   { US"local_scan",     D_local_scan },
 557   { US"lookup",         D_lookup },
 558   { US"memory",         D_memory },
 559   { US"pid",            D_pid },
 560   { US"process_info",   D_process_info },
 561   { US"queue_run",      D_queue_run },
 562   { US"receive",        D_receive },
 563   { US"resolver",       D_resolver },
 564   { US"retry",          D_retry },
 565   { US"rewrite",        D_rewrite },
 566   { US"route",          D_route },
 567   { US"timestamp",      D_timestamp },
 568   { US"tls",            D_tls },
 569   { US"transport",      D_transport },
 570   { US"uid",            D_uid },
 571   { US"verify",         D_verify }
 572 };
 573 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 574 unsigned int debug_selector    = 0;
 575 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 576 uschar *delay_warning_condition=
 577   US"${if or {"
 578             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 579             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 580             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 581             "} {no}{yes}}";
 582 BOOL    delivery_date_remove   = TRUE;
 583 uschar *deliver_address_data   = NULL;
 584 int     deliver_datafile       = -1;
 585 const uschar *deliver_domain   = NULL;
 586 uschar *deliver_domain_data    = NULL;
 587 const uschar *deliver_domain_orig = NULL;
 588 const uschar *deliver_domain_parent = NULL;
 589 BOOL    deliver_drop_privilege = FALSE;
 590 BOOL    deliver_firsttime      = FALSE;
 591 BOOL    deliver_force          = FALSE;
 592 BOOL    deliver_freeze         = FALSE;
 593 time_t  deliver_frozen_at      = 0;
 594 uschar *deliver_home           = NULL;
 595 const uschar *deliver_host     = NULL;
 596 const uschar *deliver_host_address = NULL;
 597 int     deliver_host_port      = 0;
 598 uschar *deliver_in_buffer      = NULL;
 599 ino_t   deliver_inode          = 0;
 600 uschar *deliver_localpart      = NULL;
 601 uschar *deliver_localpart_data = NULL;
 602 uschar *deliver_localpart_orig = NULL;
 603 uschar *deliver_localpart_parent = NULL;
 604 uschar *deliver_localpart_prefix = NULL;
 605 uschar *deliver_localpart_suffix = NULL;
 606 BOOL    deliver_force_thaw     = FALSE;
 607 BOOL    deliver_manual_thaw    = FALSE;
 608 uschar *deliver_out_buffer     = NULL;
 609 int     deliver_queue_load_max = -1;
 610 address_item  *deliver_recipients = NULL;
 611 uschar *deliver_selectstring   = NULL;
 612 BOOL    deliver_selectstring_regex = FALSE;
 613 uschar *deliver_selectstring_sender = NULL;
 614 BOOL    deliver_selectstring_sender_regex = FALSE;
 615 #ifdef WITH_OLD_DEMIME
 616 int     demime_errorlevel      = 0;
 617 int     demime_ok              = 0;
 618 uschar *demime_reason          = NULL;
 619 #endif
 620 BOOL    disable_callout_flush  = FALSE;
 621 BOOL    disable_delay_flush    = FALSE;
 622 #ifdef ENABLE_DISABLE_FSYNC
 623 BOOL    disable_fsync          = FALSE;
 624 #endif
 625 BOOL    disable_ipv6           = FALSE;
 626 BOOL    disable_logging        = FALSE;
 627
 628 #ifndef DISABLE_DKIM
 629 uschar *dkim_cur_signer          = NULL;
 630 uschar *dkim_signers             = NULL;
 631 uschar *dkim_signing_domain      = NULL;
 632 uschar *dkim_signing_selector    = NULL;
 633 uschar *dkim_verify_signers      = US"$dkim_signers";
 634 BOOL    dkim_collect_input       = FALSE;
 635 BOOL    dkim_disable_verify      = FALSE;
 636 #endif
 637 #ifdef EXPERIMENTAL_DMARC
 638 BOOL    dmarc_has_been_checked  = FALSE;
 639 uschar *dmarc_ar_header         = NULL;
 640 uschar *dmarc_domain_policy     = NULL;
 641 uschar *dmarc_forensic_sender   = NULL;
 642 uschar *dmarc_history_file      = NULL;
 643 uschar *dmarc_status            = NULL;
 644 uschar *dmarc_status_text       = NULL;
 645 uschar *dmarc_tld_file          = NULL;
 646 uschar *dmarc_used_domain       = NULL;
 647 BOOL    dmarc_disable_verify    = FALSE;
 648 BOOL    dmarc_enable_forensic   = FALSE;
 649 #endif
 650
 651 uschar *dns_again_means_nonexist = NULL;
 652 int     dns_csa_search_limit   = 5;
 653 BOOL    dns_csa_use_reverse    = TRUE;
 654 #ifdef EXPERIMENTAL_DANE
 655 int     dns_dane_ok            = -1;
 656 #endif
 657 uschar *dns_ipv4_lookup        = NULL;
 658 int     dns_retrans            = 0;
 659 int     dns_retry              = 0;
 660 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 661 uschar *dns_trust_aa           = NULL;
 662 int     dns_use_edns0          = -1; /* <0 = not coerced */
 663 uschar *dnslist_domain         = NULL;
 664 uschar *dnslist_matched        = NULL;
 665 uschar *dnslist_text           = NULL;
 666 uschar *dnslist_value          = NULL;
 667 tree_node *domainlist_anchor   = NULL;
 668 int     domainlist_count       = 0;
 669 BOOL    dont_deliver           = FALSE;
 670 BOOL    dot_ends               = TRUE;
 671 BOOL    drop_cr                = FALSE;         /* No longer used */
 672 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 673
 674 BOOL    enable_dollar_recipients = FALSE;
 675 BOOL    envelope_to_remove     = TRUE;
 676 int     errno_quota            = ERRNO_QUOTA;
 677 uschar *errors_copy            = NULL;
 678 int     error_handling         = ERRORS_SENDER;
 679 uschar *errors_reply_to        = NULL;
 680 int     errors_sender_rc       = EXIT_FAILURE;
 681 #ifdef EXPERIMENTAL_EVENT
 682 uschar *event_action             = NULL;        /* expansion for delivery events */
 683 uschar *event_data               = NULL;        /* auxilary data variable for event */
 684 int     event_defer_errno        = 0;
 685 const uschar *event_name         = NULL;        /* event name variable */
 686 #endif
 687
 688
 689 gid_t   exim_gid               = EXIM_GID;
 690 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 691 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 692                         "\0<---------------Space to patch exim_path->";
 693 uid_t   exim_uid               = EXIM_UID;
 694 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 695 int     expand_forbid          = 0;
 696 int     expand_nlength[EXPAND_MAXN+1];
 697 int     expand_nmax            = -1;
 698 uschar *expand_nstring[EXPAND_MAXN+1];
 699 BOOL    expand_string_forcedfail = FALSE;
 700 uschar *expand_string_message;
 701 BOOL    extract_addresses_remove_arguments = TRUE;
 702 uschar *extra_local_interfaces = NULL;
 703
 704 int     fake_response          = OK;
 705 uschar *fake_response_text     = US"Your message has been rejected but is "
 706                                    "being kept for evaluation.\nIf it was a "
 707                                    "legitimate message, it may still be "
 708                                    "delivered to the target recipient(s).";
 709 int     filter_n[FILTER_VARIABLE_COUNT];
 710 BOOL    filter_running         = FALSE;
 711 int     filter_sn[FILTER_VARIABLE_COUNT];
 712 int     filter_test            = FTEST_NONE;
 713 uschar *filter_test_sfile      = NULL;
 714 uschar *filter_test_ufile      = NULL;
 715 uschar *filter_thisaddress     = NULL;
 716 int     finduser_retries       = 0;
 717 #ifdef WITH_OLD_DEMIME
 718 uschar *found_extension        = NULL;
 719 #endif
 720 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 721 uschar *freeze_tell            = NULL;
 722 uschar *freeze_tell_config     = NULL;
 723 uschar *fudged_queue_times     = US"";
 724
 725 uschar *gecos_name             = NULL;
 726 uschar *gecos_pattern          = NULL;
 727 rewrite_rule  *global_rewrite_rules = NULL;
 728
 729 uschar *headers_charset        = US HEADERS_CHARSET;
 730 int     header_insert_maxlen   = 64 * 1024;
 731 header_line  *header_last      = NULL;
 732 header_line  *header_list      = NULL;
 733 int     header_maxsize         = HEADER_MAXSIZE;
 734 int     header_line_maxsize    = 0;
 735
 736 header_name header_names[] = {
 737   { US"bcc",            3, TRUE,  htype_bcc },
 738   { US"cc",             2, TRUE,  htype_cc },
 739   { US"date",           4, TRUE,  htype_date },
 740   { US"delivery-date", 13, FALSE, htype_delivery_date },
 741   { US"envelope-to",   11, FALSE, htype_envelope_to },
 742   { US"from",           4, TRUE,  htype_from },
 743   { US"message-id",    10, TRUE,  htype_id },
 744   { US"received",       8, FALSE, htype_received },
 745   { US"reply-to",       8, FALSE, htype_reply_to },
 746   { US"return-path",   11, FALSE, htype_return_path },
 747   { US"sender",         6, TRUE,  htype_sender },
 748   { US"subject",        7, FALSE, htype_subject },
 749   { US"to",             2, TRUE,  htype_to }
 750 };
 751
 752 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 753
 754 BOOL    header_rewritten       = FALSE;
 755 uschar *helo_accept_junk_hosts = NULL;
 756 uschar *helo_allow_chars       = US"";
 757 uschar *helo_lookup_domains    = US"@ : @[]";
 758 uschar *helo_try_verify_hosts  = NULL;
 759 BOOL    helo_verified          = FALSE;
 760 BOOL    helo_verify_failed     = FALSE;
 761 uschar *helo_verify_hosts      = NULL;
 762 const uschar *hex_digits       = CUS"0123456789abcdef";
 763 uschar *hold_domains           = NULL;
 764 BOOL    host_checking          = FALSE;
 765 BOOL    host_checking_callout  = FALSE;
 766 uschar *host_data              = NULL;
 767 BOOL    host_find_failed_syntax= FALSE;
 768 uschar *host_lookup            = NULL;
 769 BOOL    host_lookup_deferred   = FALSE;
 770 BOOL    host_lookup_failed     = FALSE;
 771 uschar *host_lookup_order      = US"bydns:byaddr";
 772 uschar *host_lookup_msg        = US"";
 773 int     host_number            = 0;
 774 uschar *host_number_string     = NULL;
 775 uschar *host_reject_connection = NULL;
 776 tree_node *hostlist_anchor     = NULL;
 777 int     hostlist_count         = 0;
 778 uschar *hosts_treat_as_local   = NULL;
 779 uschar *hosts_connection_nolog = NULL;
 780
 781 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 782 BOOL    ignore_fromline_local  = FALSE;
 783 uschar *ignore_fromline_hosts  = NULL;
 784 BOOL    inetd_wait_mode        = FALSE;
 785 int     inetd_wait_timeout     = -1;
 786 uschar *interface_address      = NULL;
 787 int     interface_port         = -1;
 788 BOOL    is_inetd               = FALSE;
 789 uschar *iterate_item           = NULL;
 790
 791 int     journal_fd             = -1;
 792
 793 uschar *keep_environment       = NULL;
 794
 795 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 796
 797 uschar *eldap_dn               = NULL;
 798 int     load_average           = -2;
 799 BOOL    local_error_message    = FALSE;
 800 BOOL    local_from_check       = TRUE;
 801 uschar *local_from_prefix      = NULL;
 802 uschar *local_from_suffix      = NULL;
 803
 804 #if HAVE_IPV6
 805 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 806 #else
 807 uschar *local_interfaces       = US"0.0.0.0";
 808 #endif
 809
 810 uschar *local_scan_data        = NULL;
 811 int     local_scan_timeout     = 5*60;
 812 BOOL    local_sender_retain    = FALSE;
 813 gid_t   local_user_gid         = (gid_t)(-1);
 814 uid_t   local_user_uid         = (uid_t)(-1);
 815
 816 tree_node *localpartlist_anchor= NULL;
 817 int     localpartlist_count    = 0;
 818 uschar *log_buffer             = NULL;
 819 unsigned int log_extra_selector = LX_default;
 820 uschar *log_file_path          = US LOG_FILE_PATH
 821                            "\0<--------------Space to patch log_file_path->";
 822
 823 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 824 are the ones that get put into log_write_selector. They can be used in calls to
 825 log_write() to test for the bit. The options with LX_xxx identifiers have
 826 values greater than 0x80000000 and are put into log_extra_selector (without the
 827 top bit). They are never used in calls to log_write(), but are tested
 828 independently. This separation became necessary when the number of log
 829 selectors was getting close to filling a 32-bit word. */
 830
 831 /* Note that this list must be in alphabetical order. */
 832
 833 bit_table log_options[]        = {
 834   { US"8bitmime",                     LX_8bitmime },
 835   { US"acl_warn_skipped",             LX_acl_warn_skipped },
 836   { US"address_rewrite",              L_address_rewrite },
 837   { US"all",                          L_all },
 838   { US"all_parents",                  L_all_parents },
 839   { US"arguments",                    LX_arguments },
 840   { US"connection_reject",            L_connection_reject },
 841   { US"delay_delivery",               L_delay_delivery },
 842   { US"deliver_time",                 LX_deliver_time },
 843   { US"delivery_size",                LX_delivery_size },
 844   { US"dnslist_defer",                L_dnslist_defer },
 845   { US"etrn",                         L_etrn },
 846   { US"host_lookup_failed",           L_host_lookup_failed },
 847   { US"ident_timeout",                LX_ident_timeout },
 848   { US"incoming_interface",           LX_incoming_interface },
 849   { US"incoming_port",                LX_incoming_port },
 850   { US"lost_incoming_connection",     L_lost_incoming_connection },
 851   { US"outgoing_port",                LX_outgoing_port },
 852   { US"pid",                          LX_pid },
 853 #ifdef EXPERIMENTAL_PROXY
 854   { US"proxy",                        LX_proxy },
 855 #endif
 856   { US"queue_run",                    L_queue_run },
 857   { US"queue_time",                   LX_queue_time },
 858   { US"queue_time_overall",           LX_queue_time_overall },
 859   { US"received_recipients",          LX_received_recipients },
 860   { US"received_sender",              LX_received_sender },
 861   { US"rejected_header",              LX_rejected_header },
 862   { US"rejected_headers",             LX_rejected_header },
 863   { US"retry_defer",                  L_retry_defer },
 864   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 865   { US"sender_on_delivery",           LX_sender_on_delivery },
 866   { US"sender_verify_fail",           LX_sender_verify_fail },
 867   { US"size_reject",                  L_size_reject },
 868   { US"skip_delivery",                L_skip_delivery },
 869   { US"smtp_confirmation",            LX_smtp_confirmation },
 870   { US"smtp_connection",              L_smtp_connection },
 871   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 872   { US"smtp_mailauth",                LX_smtp_mailauth },
 873   { US"smtp_no_mail",                 LX_smtp_no_mail },
 874   { US"smtp_protocol_error",          L_smtp_protocol_error },
 875   { US"smtp_syntax_error",            L_smtp_syntax_error },
 876   { US"subject",                      LX_subject },
 877   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 878   { US"tls_cipher",                   LX_tls_cipher },
 879   { US"tls_peerdn",                   LX_tls_peerdn },
 880   { US"tls_sni",                      LX_tls_sni },
 881   { US"unknown_in_list",              LX_unknown_in_list }
 882 };
 883
 884 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 885 int     log_reject_target      = 0;
 886 uschar *log_selector_string    = NULL;
 887 FILE   *log_stderr             = NULL;
 888 BOOL    log_testing_mode       = FALSE;
 889 BOOL    log_timezone           = FALSE;
 890 unsigned int log_write_selector= L_default;
 891 uschar *login_sender_address   = NULL;
 892 uschar *lookup_dnssec_authenticated = NULL;
 893 int     lookup_open_max        = 25;
 894 uschar *lookup_value           = NULL;
 895
 896 macro_item  *macros            = NULL;
 897 uschar *mailstore_basename     = NULL;
 898 #ifdef WITH_CONTENT_SCAN
 899 uschar *malware_name           = NULL;  /* Virus Name */
 900 #endif
 901 int     max_received_linelength= 0;
 902 int     max_username_length    = 0;
 903 int     message_age            = 0;
 904 uschar *message_body           = NULL;
 905 uschar *message_body_end       = NULL;
 906 BOOL    message_body_newlines  = FALSE;
 907 int     message_body_size      = 0;
 908 int     message_body_visible   = 500;
 909 int     message_ended          = END_NOTSTARTED;
 910 uschar *message_headers        = NULL;
 911 uschar *message_id;
 912 uschar *message_id_domain      = NULL;
 913 uschar *message_id_text        = NULL;
 914 struct timeval message_id_tv   = { 0, 0 };
 915 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 916 uschar *message_id_external;
 917 int     message_linecount      = 0;
 918 BOOL    message_logs           = TRUE;
 919 int     message_size           = 0;
 920 uschar *message_size_limit     = US"50M";
 921 #ifdef EXPERIMENTAL_INTERNATIONAL
 922 BOOL    message_smtputf8       = FALSE;
 923 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 924 #endif
 925 uschar  message_subdir[2]      = { 0, 0 };
 926 uschar *message_reference      = NULL;
 927
 928 /* MIME ACL expandables */
 929 #ifdef WITH_CONTENT_SCAN
 930 int     mime_anomaly_level     = 0;
 931 const uschar *mime_anomaly_text      = NULL;
 932 uschar *mime_boundary          = NULL;
 933 uschar *mime_charset           = NULL;
 934 uschar *mime_content_description = NULL;
 935 uschar *mime_content_disposition = NULL;
 936 uschar *mime_content_id        = NULL;
 937 unsigned int mime_content_size = 0;
 938 uschar *mime_content_transfer_encoding = NULL;
 939 uschar *mime_content_type      = NULL;
 940 uschar *mime_decoded_filename  = NULL;
 941 uschar *mime_filename          = NULL;
 942 int     mime_is_multipart      = 0;
 943 int     mime_is_coverletter    = 0;
 944 int     mime_is_rfc822         = 0;
 945 int     mime_part_count        = -1;
 946 #endif
 947
 948 BOOL    mua_wrapper            = FALSE;
 949
 950 uid_t  *never_users            = NULL;
 951 #ifdef WITH_CONTENT_SCAN
 952 BOOL    no_mbox_unspool        = FALSE;
 953 #endif
 954 BOOL    no_multiline_responses = FALSE;
 955
 956 uid_t   original_euid;
 957 gid_t   originator_gid;
 958 uschar *originator_login       = NULL;
 959 uschar *originator_name        = NULL;
 960 uid_t   originator_uid;
 961 uschar *override_local_interfaces = NULL;
 962 uschar *override_pid_file_path = NULL;
 963
 964 BOOL    parse_allow_group      = FALSE;
 965 BOOL    parse_found_group      = FALSE;
 966 uschar *percent_hack_domains   = NULL;
 967 uschar *pid_file_path          = US PID_FILE_PATH
 968                            "\0<--------------Space to patch pid_file_path->";
 969 BOOL    pipelining_enable      = TRUE;
 970 uschar *pipelining_advertise_hosts = US"*";
 971 BOOL    preserve_message_logs  = FALSE;
 972 uschar *primary_hostname       = NULL;
 973 BOOL    print_topbitchars      = FALSE;
 974 uschar  process_info[PROCESS_INFO_SIZE];
 975 int     process_info_len       = 0;
 976 uschar *process_log_path       = NULL;
 977 BOOL    prod_requires_admin    = TRUE;
 978
 979 #ifdef EXPERIMENTAL_PROXY
 980 uschar *proxy_host_address     = US"";
 981 int     proxy_host_port        = 0;
 982 uschar *proxy_required_hosts   = US"";
 983 BOOL    proxy_session          = FALSE;
 984 BOOL    proxy_session_failed   = FALSE;
 985 uschar *proxy_target_address   = US"";
 986 int     proxy_target_port      = 0;
 987 #endif
 988
 989 uschar *prvscheck_address      = NULL;
 990 uschar *prvscheck_keynum       = NULL;
 991 uschar *prvscheck_result       = NULL;
 992
 993
 994 const uschar *qualify_domain_recipient = NULL;
 995 uschar *qualify_domain_sender  = NULL;
 996 BOOL    queue_2stage           = FALSE;
 997 uschar *queue_domains          = NULL;
 998 int     queue_interval         = -1;
 999 BOOL    queue_list_requires_admin = TRUE;
1000 BOOL    queue_only             = FALSE;
1001 uschar *queue_only_file        = NULL;
1002 int     queue_only_load        = -1;
1003 BOOL    queue_only_load_latch  = TRUE;
1004 BOOL    queue_only_override    = TRUE;
1005 BOOL    queue_only_policy      = FALSE;
1006 BOOL    queue_run_first_delivery = FALSE;
1007 BOOL    queue_run_force        = FALSE;
1008 BOOL    queue_run_in_order     = FALSE;
1009 BOOL    queue_run_local        = FALSE;
1010 int     queue_run_max          = 5;
1011 pid_t   queue_run_pid          = (pid_t)0;
1012 int     queue_run_pipe         = -1;
1013 BOOL    queue_running          = FALSE;
1014 BOOL    queue_smtp             = FALSE;
1015 uschar *queue_smtp_domains     = NULL;
1016
1017 unsigned int random_seed       = 0;
1018 tree_node *ratelimiters_cmd    = NULL;
1019 tree_node *ratelimiters_conn   = NULL;
1020 tree_node *ratelimiters_mail   = NULL;
1021 uschar *raw_active_hostname    = NULL;
1022 uschar *raw_sender             = NULL;
1023 uschar **raw_recipients        = NULL;
1024 int     raw_recipients_count   = 0;
1025
1026 int     rcpt_count             = 0;
1027 int     rcpt_fail_count        = 0;
1028 int     rcpt_defer_count       = 0;
1029 gid_t   real_gid;
1030 uid_t   real_uid;
1031 BOOL    really_exim            = TRUE;
1032 BOOL    receive_call_bombout   = FALSE;
1033 int     receive_linecount      = 0;
1034 int     receive_messagecount   = 0;
1035 int     receive_timeout        = 0;
1036 int     received_count         = 0;
1037 uschar *received_for           = NULL;
1038
1039 /*  This is the default text for Received headers generated by Exim. The
1040 date  will be automatically added on the end. */
1041
1042 uschar *received_header_text   = US
1043      "Received: "
1044      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1045      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1046      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1047      "by $primary_hostname "
1048      "${if def:received_protocol {with $received_protocol}} "
1049      #ifdef SUPPORT_TLS
1050      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1051      #endif
1052      "(Exim $version_number)\n\t"
1053      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1054      "id $message_exim_id"
1055      "${if def:received_for {\n\tfor $received_for}}"
1056      "\0<---------------Space to patch received_header_text->";
1057
1058 int     received_headers_max   = 30;
1059 uschar *received_protocol      = NULL;
1060 int     received_time          = 0;
1061 uschar *recipient_data         = NULL;
1062 uschar *recipient_unqualified_hosts = NULL;
1063 uschar *recipient_verify_failure = NULL;
1064 int     recipients_count       = 0;
1065 BOOL    recipients_discarded   = FALSE;
1066 recipient_item  *recipients_list = NULL;
1067 int     recipients_list_max    = 0;
1068 int     recipients_max         = 0;
1069 BOOL    recipients_max_reject  = FALSE;
1070 const pcre *regex_AUTH         = NULL;
1071 const pcre *regex_check_dns_names = NULL;
1072 const pcre *regex_From         = NULL;
1073 const pcre *regex_IGNOREQUOTA  = NULL;
1074 const pcre *regex_PIPELINING   = NULL;
1075 const pcre *regex_SIZE         = NULL;
1076 const pcre *regex_smtp_code    = NULL;
1077 const pcre *regex_ismsgid      = NULL;
1078 #ifdef WHITELIST_D_MACROS
1079 const pcre *regex_whitelisted_macro = NULL;
1080 #endif
1081 #ifdef WITH_CONTENT_SCAN
1082 uschar *regex_match_string     = NULL;
1083 #endif
1084 int     remote_delivery_count  = 0;
1085 int     remote_max_parallel    = 2;
1086 uschar *remote_sort_domains    = NULL;
1087 int     retry_data_expire      = 7*24*60*60;
1088 int     retry_interval_max     = 24*60*60;
1089 int     retry_maximum_timeout  = 0;        /* set from retry config */
1090 retry_config  *retries         = NULL;
1091 uschar *return_path            = NULL;
1092 BOOL    return_path_remove     = TRUE;
1093 int     rewrite_existflags     = 0;
1094 uschar *rfc1413_hosts          = US"@[]";
1095 int     rfc1413_query_timeout  = 0;
1096 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1097 uid_t   root_gid               = ROOT_GID;
1098 uid_t   root_uid               = ROOT_UID;
1099
1100 router_instance  *routers  = NULL;
1101 router_instance  router_defaults = {
1102     NULL,                      /* chain pointer */
1103     NULL,                      /* name */
1104     NULL,                      /* info */
1105     NULL,                      /* private options block pointer */
1106     NULL,                      /* driver name */
1107
1108     NULL,                      /* address_data */
1109 #ifdef EXPERIMENTAL_BRIGHTMAIL
1110     NULL,                      /* bmi_rule */
1111 #endif
1112     NULL,                      /* cannot_route_message */
1113     NULL,                      /* condition */
1114     NULL,                      /* current_directory */
1115     NULL,                      /* debug_string */
1116     NULL,                      /* domains */
1117     NULL,                      /* errors_to */
1118     NULL,                      /* expand_gid */
1119     NULL,                      /* expand_uid */
1120     NULL,                      /* expand_more */
1121     NULL,                      /* expand_unseen */
1122     NULL,                      /* extra_headers */
1123     NULL,                      /* fallback_hosts */
1124     NULL,                      /* home_directory */
1125     NULL,                      /* ignore_target_hosts */
1126     NULL,                      /* local_parts */
1127     NULL,                      /* pass_router_name */
1128     NULL,                      /* prefix */
1129     NULL,                      /* redirect_router_name */
1130     NULL,                      /* remove_headers */
1131     NULL,                      /* require_files */
1132     NULL,                      /* router_home_directory */
1133     US"freeze",                /* self */
1134     NULL,                      /* senders */
1135     NULL,                      /* suffix */
1136     NULL,                      /* translate_ip_address */
1137     NULL,                      /* transport_name */
1138
1139     TRUE,                      /* address_test */
1140 #ifdef EXPERIMENTAL_BRIGHTMAIL
1141     FALSE,                     /* bmi_deliver_alternate */
1142     FALSE,                     /* bmi_deliver_default */
1143     FALSE,                     /* bmi_dont_deliver */
1144 #endif
1145     TRUE,                      /* expn */
1146     FALSE,                     /* caseful_local_part */
1147     FALSE,                     /* check_local_user */
1148     FALSE,                     /* disable_logging */
1149     FALSE,                     /* fail_verify_recipient */
1150     FALSE,                     /* fail_verify_sender */
1151     FALSE,                     /* gid_set */
1152     FALSE,                     /* initgroups */
1153     TRUE_UNSET,                /* log_as_local */
1154     TRUE,                      /* more */
1155     FALSE,                     /* pass_on_timeout */
1156     FALSE,                     /* prefix_optional */
1157     TRUE,                      /* repeat_use */
1158     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1159     FALSE,                     /* same_domain_copy_routing */
1160     FALSE,                     /* self_rewrite */
1161     FALSE,                     /* suffix_optional */
1162     FALSE,                     /* verify_only */
1163     TRUE,                      /* verify_recipient */
1164     TRUE,                      /* verify_sender */
1165     FALSE,                     /* uid_set */
1166     FALSE,                     /* unseen */
1167     FALSE,                     /* dsn_lasthop */
1168
1169     self_freeze,               /* self_code */
1170     (uid_t)(-1),               /* uid */
1171     (gid_t)(-1),               /* gid */
1172
1173     NULL,                      /* fallback_hostlist */
1174     NULL,                      /* transport instance */
1175     NULL,                      /* pass_router */
1176     NULL,                      /* redirect_router */
1177
1178     { NULL, NULL },            /* dnssec_domains {require,request} */
1179 };
1180
1181 uschar *router_name            = NULL;
1182
1183 ip_address_item *running_interfaces = NULL;
1184 BOOL    running_in_test_harness = FALSE;
1185
1186 /* This is a weird one. The following string gets patched in the binary by the
1187 script that sets up a copy of Exim for running in the test harness. It seems
1188 that compilers are now clever, and share constant strings if they can.
1189 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1190 make use of the end of this string in order to save space. So the patching then
1191 wrecks this. We defeat this optimization by adding some additional characters
1192 onto the end of the string. */
1193
1194 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1195
1196 int     runrc                  = 0;
1197
1198 uschar *search_error_message   = NULL;
1199 BOOL    search_find_defer      = FALSE;
1200 uschar *self_hostname          = NULL;
1201 uschar *sender_address         = NULL;
1202 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1203 uschar *sender_address_data    = NULL;
1204 BOOL    sender_address_forced  = FALSE;
1205 uschar *sender_address_unrewritten = NULL;
1206 uschar *sender_data            = NULL;
1207 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1208 uschar *sender_fullhost        = NULL;
1209 BOOL    sender_helo_dnssec     = FALSE;
1210 uschar *sender_helo_name       = NULL;
1211 uschar **sender_host_aliases   = &no_aliases;
1212 uschar *sender_host_address    = NULL;
1213 uschar *sender_host_authenticated = NULL;
1214 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1215 BOOL    sender_host_dnssec     = FALSE;
1216 uschar *sender_host_name       = NULL;
1217 int     sender_host_port       = 0;
1218 BOOL    sender_host_notsocket  = FALSE;
1219 BOOL    sender_host_unknown    = FALSE;
1220 uschar *sender_ident           = NULL;
1221 BOOL    sender_local           = FALSE;
1222 BOOL    sender_name_forced     = FALSE;
1223 uschar *sender_rate            = NULL;
1224 uschar *sender_rate_limit      = NULL;
1225 uschar *sender_rate_period     = NULL;
1226 uschar *sender_rcvhost         = NULL;
1227 BOOL    sender_set_untrusted   = FALSE;
1228 uschar *sender_unqualified_hosts = NULL;
1229 uschar *sender_verify_failure = NULL;
1230 address_item *sender_verified_list  = NULL;
1231 address_item *sender_verified_failed = NULL;
1232 int     sender_verified_rc     = -1;
1233 BOOL    sender_verified_responded = FALSE;
1234 uschar *sending_ip_address     = NULL;
1235 int     sending_port           = -1;
1236 SIGNAL_BOOL sigalrm_seen       = FALSE;
1237 uschar **sighup_argv           = NULL;
1238 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1239 int     smtp_accept_count      = 0;
1240 BOOL    smtp_accept_keepalive  = TRUE;
1241 int     smtp_accept_max        = 20;
1242 int     smtp_accept_max_nonmail= 10;
1243 uschar *smtp_accept_max_nonmail_hosts = US"*";
1244 int     smtp_accept_max_per_connection = 1000;
1245 uschar *smtp_accept_max_per_host = NULL;
1246 int     smtp_accept_queue      = 0;
1247 int     smtp_accept_queue_per_connection = 10;
1248 int     smtp_accept_reserve    = 0;
1249 uschar *smtp_active_hostname   = NULL;
1250 BOOL    smtp_authenticated     = FALSE;
1251 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1252                              "Exim $version_number $tod_full"
1253                              "\0<---------------Space to patch smtp_banner->";
1254 BOOL    smtp_batched_input     = FALSE;
1255 BOOL    smtp_check_spool_space = TRUE;
1256 int     smtp_ch_index          = 0;
1257 uschar *smtp_cmd_argument      = NULL;
1258 uschar *smtp_cmd_buffer        = NULL;
1259 time_t  smtp_connection_start  = 0;
1260 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1261 int     smtp_connect_backlog   = 20;
1262 double  smtp_delay_mail        = 0.0;
1263 double  smtp_delay_rcpt        = 0.0;
1264 BOOL    smtp_enforce_sync      = TRUE;
1265 FILE   *smtp_in                = NULL;
1266 BOOL    smtp_input             = FALSE;
1267 int     smtp_load_reserve      = -1;
1268 int     smtp_mailcmd_count     = 0;
1269 FILE   *smtp_out               = NULL;
1270 uschar *smtp_etrn_command      = NULL;
1271 BOOL    smtp_etrn_serialize    = TRUE;
1272 int     smtp_max_synprot_errors= 3;
1273 int     smtp_max_unknown_commands = 3;
1274 uschar *smtp_notquit_reason    = NULL;
1275 uschar *smtp_ratelimit_hosts   = NULL;
1276 uschar *smtp_ratelimit_mail    = NULL;
1277 uschar *smtp_ratelimit_rcpt    = NULL;
1278 uschar *smtp_read_error        = US"";
1279 int     smtp_receive_timeout   = 5*60;
1280 uschar *smtp_receive_timeout_s = NULL;
1281 uschar *smtp_reserve_hosts     = NULL;
1282 BOOL    smtp_return_error_details = FALSE;
1283 int     smtp_rlm_base          = 0;
1284 double  smtp_rlm_factor        = 0.0;
1285 int     smtp_rlm_limit         = 0;
1286 int     smtp_rlm_threshold     = INT_MAX;
1287 int     smtp_rlr_base          = 0;
1288 double  smtp_rlr_factor        = 0.0;
1289 int     smtp_rlr_limit         = 0;
1290 int     smtp_rlr_threshold     = INT_MAX;
1291 BOOL    smtp_use_pipelining    = FALSE;
1292 BOOL    smtp_use_size          = FALSE;
1293 #ifdef EXPERIMENTAL_INTERNATIONAL
1294 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1295 #endif
1296
1297 #ifdef WITH_CONTENT_SCAN
1298 uschar *spamd_address          = US"127.0.0.1 783";
1299 uschar *spam_bar               = NULL;
1300 uschar *spam_report            = NULL;
1301 uschar *spam_action            = NULL;
1302 uschar *spam_score             = NULL;
1303 uschar *spam_score_int         = NULL;
1304 #endif
1305 #ifdef EXPERIMENTAL_SPF
1306 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1307 uschar *spf_header_comment     = NULL;
1308 uschar *spf_received           = NULL;
1309 uschar *spf_result             = NULL;
1310 uschar *spf_smtp_comment       = NULL;
1311 #endif
1312
1313 BOOL    split_spool_directory  = FALSE;
1314 uschar *spool_directory        = US SPOOL_DIRECTORY
1315                            "\0<--------------Space to patch spool_directory->";
1316 #ifdef EXPERIMENTAL_SRS
1317 uschar *srs_config             = NULL;
1318 uschar *srs_db_address         = NULL;
1319 uschar *srs_db_key             = NULL;
1320 int     srs_hashlength         = 6;
1321 int     srs_hashmin            = -1;
1322 int     srs_maxage             = 31;
1323 uschar *srs_orig_recipient     = NULL;
1324 uschar *srs_orig_sender        = NULL;
1325 uschar *srs_recipient          = NULL;
1326 uschar *srs_secrets            = NULL;
1327 uschar *srs_status             = NULL;
1328 BOOL    srs_usehash            = TRUE;
1329 BOOL    srs_usetimestamp       = TRUE;
1330 #endif
1331 BOOL    strict_acl_vars        = FALSE;
1332 int     string_datestamp_offset= -1;
1333 int     string_datestamp_length= 0;
1334 int     string_datestamp_type  = -1;
1335 BOOL    strip_excess_angle_brackets = FALSE;
1336 BOOL    strip_trailing_dot     = FALSE;
1337 uschar *submission_domain      = NULL;
1338 BOOL    submission_mode        = FALSE;
1339 uschar *submission_name        = NULL;
1340 BOOL    suppress_local_fixups  = FALSE;
1341 BOOL    suppress_local_fixups_default = FALSE;
1342 BOOL    synchronous_delivery   = FALSE;
1343 BOOL    syslog_duplication     = TRUE;
1344 int     syslog_facility        = LOG_MAIL;
1345 uschar *syslog_processname     = US"exim";
1346 BOOL    syslog_timestamp       = TRUE;
1347 uschar *system_filter          = NULL;
1348
1349 uschar *system_filter_directory_transport = NULL;
1350 uschar *system_filter_file_transport = NULL;
1351 uschar *system_filter_pipe_transport = NULL;
1352 uschar *system_filter_reply_transport = NULL;
1353
1354 gid_t   system_filter_gid      = 0;
1355 BOOL    system_filter_gid_set  = FALSE;
1356 uid_t   system_filter_uid      = (uid_t)-1;
1357 BOOL    system_filter_uid_set  = FALSE;
1358 BOOL    system_filtering       = FALSE;
1359
1360 BOOL    tcp_nodelay            = TRUE;
1361 #ifdef USE_TCP_WRAPPERS
1362 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1363 #endif
1364 int     test_harness_load_avg  = 0;
1365 int     thismessage_size_limit = 0;
1366 int     timeout_frozen_after   = 0;
1367 BOOL    timestamps_utc         = FALSE;
1368
1369 transport_instance  *transports = NULL;
1370
1371 transport_instance  transport_defaults = {
1372     NULL,                     /* chain pointer */
1373     NULL,                     /* name */
1374     NULL,                     /* info */
1375     NULL,                     /* private options block pointer */
1376     NULL,                     /* driver name */
1377     NULL,                     /* setup entry point */
1378     1,                        /* batch_max */
1379     NULL,                     /* batch_id */
1380     NULL,                     /* home_dir */
1381     NULL,                     /* current_dir */
1382     NULL,                     /* expand-multi-domain */
1383     TRUE,                     /* multi-domain */
1384     FALSE,                    /* overrides_hosts */
1385     100,                      /* max_addresses */
1386     500,                      /* connection_max_messages */
1387     FALSE,                    /* deliver_as_creator */
1388     FALSE,                    /* disable_logging */
1389     FALSE,                    /* initgroups */
1390     FALSE,                    /* uid_set */
1391     FALSE,                    /* gid_set */
1392     (uid_t)(-1),              /* uid */
1393     (gid_t)(-1),              /* gid */
1394     NULL,                     /* expand_uid */
1395     NULL,                     /* expand_gid */
1396     NULL,                     /* warn_message */
1397     NULL,                     /* shadow */
1398     NULL,                     /* shadow_condition */
1399     NULL,                     /* filter_command */
1400     NULL,                     /* add_headers */
1401     NULL,                     /* remove_headers */
1402     NULL,                     /* return_path */
1403     NULL,                     /* debug_string */
1404     NULL,                     /* message_size_limit */
1405     NULL,                     /* headers_rewrite */
1406     NULL,                     /* rewrite_rules */
1407     0,                        /* rewrite_existflags */
1408     300,                      /* filter_timeout */
1409     FALSE,                    /* body_only */
1410     FALSE,                    /* delivery_date_add */
1411     FALSE,                    /* envelope_to_add */
1412     FALSE,                    /* headers_only */
1413     FALSE,                    /* rcpt_include_affixes */
1414     FALSE,                    /* return_path_add */
1415     FALSE,                    /* return_output */
1416     FALSE,                    /* return_fail_output */
1417     FALSE,                    /* log_output */
1418     FALSE,                    /* log_fail_output */
1419     FALSE,                    /* log_defer_output */
1420     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1421                                  1 nor 0 so can detect unset */
1422 #ifdef EXPERIMENTAL_EVENT
1423    ,NULL                      /* event_action */
1424 #endif
1425 };
1426
1427 int     transport_count;
1428 uschar *transport_name          = NULL;
1429 int     transport_newlines;
1430 const uschar **transport_filter_argv  = NULL;
1431 int     transport_filter_timeout;
1432 BOOL    transport_filter_timed_out = FALSE;
1433 int     transport_write_timeout= 0;
1434
1435 tree_node  *tree_dns_fails     = NULL;
1436 tree_node  *tree_duplicates    = NULL;
1437 tree_node  *tree_nonrecipients = NULL;
1438 tree_node  *tree_unusable      = NULL;
1439
1440 BOOL    trusted_caller         = FALSE;
1441 BOOL    trusted_config         = TRUE;
1442 gid_t  *trusted_groups         = NULL;
1443 uid_t  *trusted_users          = NULL;
1444 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1445
1446 uschar *unknown_login          = NULL;
1447 uschar *unknown_username       = NULL;
1448 uschar *untrusted_set_sender   = NULL;
1449
1450 /*  A regex for matching a "From_" line in an incoming message, in the form
1451
1452     From ph10 Fri Jan  5 12:35 GMT 1996
1453
1454 which  the "mail" commands send to the MTA (undocumented, of course), or in
1455 the  form
1456
1457     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1458
1459 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1460 Because  of variations in time formats, just match up to the minutes. That
1461 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1462 so  just require one digit for hours and minutes. The weekday is also absent
1463 in  some forms. */
1464
1465 uschar *uucp_from_pattern      = US
1466    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1467    "(?:"                                          /* Non-extracting bracket */
1468    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1469    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1470    ")"                                            /* End alternation */
1471    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1472
1473 uschar *uucp_from_sender       = US"$1";
1474
1475 uschar *verify_mode            = NULL;
1476 uschar *version_copyright      =
1477  US"Copyright (c) University of Cambridge, 1995 - 2015\n"
1478    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2015";
1479 uschar *version_date           = US"?";
1480 uschar *version_cnumber        = US"????";
1481 uschar *version_string         = US"?";
1482
1483 uschar *warn_message_file      = NULL;
1484 int     warning_count          = 0;
1485 uschar *warnmsg_delay          = NULL;
1486 uschar *warnmsg_recipients     = NULL;
1487 BOOL    write_rejectlog        = TRUE;
1488
1489
1490 /*  End of globals.c */