src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2016 */
   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 LOOKUP_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    = US"*";
 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 #else   /*!SUPPORT_TLS*/
 171 uschar *tls_advertise_hosts    = NULL;
 172 #endif
 173
 174 #ifndef DISABLE_PRDR
 175 /* Per Recipient Data Response variables */
 176 BOOL    prdr_enable            = FALSE;
 177 BOOL    prdr_requested         = FALSE;
 178 const pcre *regex_PRDR         = NULL;
 179 #endif
 180
 181 #ifdef SUPPORT_I18N
 182 const pcre *regex_UTF8         = NULL;
 183 #endif
 184
 185 /* Input-reading functions for messages, so we can use special ones for
 186 incoming TCP/IP. The defaults use stdin. We never need these for any
 187 stand-alone tests. */
 188
 189 #ifndef STAND_ALONE
 190 int (*receive_getc)(void)      = stdin_getc;
 191 int (*receive_ungetc)(int)     = stdin_ungetc;
 192 int (*receive_feof)(void)      = stdin_feof;
 193 int (*receive_ferror)(void)    = stdin_ferror;
 194 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 195 #endif
 196
 197
 198 /* List of per-address expansion variables for clearing and saving/restoring
 199 when verifying one address while routing/verifying another. We have to have
 200 the size explicit, because it is referenced from more than one module. */
 201
 202 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 203   CUSS &deliver_address_data,
 204   CUSS &deliver_domain,
 205   CUSS &deliver_domain_data,
 206   CUSS &deliver_domain_orig,
 207   CUSS &deliver_domain_parent,
 208   CUSS &deliver_localpart,
 209   CUSS &deliver_localpart_data,
 210   CUSS &deliver_localpart_orig,
 211   CUSS &deliver_localpart_parent,
 212   CUSS &deliver_localpart_prefix,
 213   CUSS &deliver_localpart_suffix,
 214   CUSS (uschar **)(&deliver_recipients),
 215   CUSS &deliver_host,
 216   CUSS &deliver_home,
 217   CUSS &address_file,
 218   CUSS &address_pipe,
 219   CUSS &self_hostname,
 220   NULL };
 221
 222 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 223
 224 /* General global variables */
 225
 226 header_line *acl_added_headers = NULL;
 227 tree_node *acl_anchor          = NULL;
 228 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 229                                   NULL, NULL, NULL, NULL};
 230 int     acl_narg               = 0;
 231
 232 uschar *acl_not_smtp           = NULL;
 233 #ifdef WITH_CONTENT_SCAN
 234 uschar *acl_not_smtp_mime      = NULL;
 235 #endif
 236 uschar *acl_not_smtp_start     = NULL;
 237 uschar *acl_removed_headers    = NULL;
 238 uschar *acl_smtp_auth          = NULL;
 239 uschar *acl_smtp_connect       = NULL;
 240 uschar *acl_smtp_data          = NULL;
 241 #ifndef DISABLE_PRDR
 242 uschar *acl_smtp_data_prdr     = US"accept";
 243 #endif
 244 #ifndef DISABLE_DKIM
 245 uschar *acl_smtp_dkim          = NULL;
 246 #endif
 247 uschar *acl_smtp_etrn          = NULL;
 248 uschar *acl_smtp_expn          = NULL;
 249 uschar *acl_smtp_helo          = NULL;
 250 uschar *acl_smtp_mail          = NULL;
 251 uschar *acl_smtp_mailauth      = NULL;
 252 #ifdef WITH_CONTENT_SCAN
 253 uschar *acl_smtp_mime          = NULL;
 254 #endif
 255 uschar *acl_smtp_notquit       = NULL;
 256 uschar *acl_smtp_predata       = NULL;
 257 uschar *acl_smtp_quit          = NULL;
 258 uschar *acl_smtp_rcpt          = NULL;
 259 uschar *acl_smtp_starttls      = NULL;
 260 uschar *acl_smtp_vrfy          = NULL;
 261
 262 BOOL    acl_temp_details       = FALSE;
 263 tree_node *acl_var_c           = NULL;
 264 tree_node *acl_var_m           = NULL;
 265 uschar *acl_verify_message     = NULL;
 266 string_item *acl_warn_logged   = NULL;
 267
 268 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 269 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 270
 271 uschar *acl_wherenames[]       = { US"RCPT",
 272                                    US"MAIL",
 273                                    US"PREDATA",
 274                                    US"MIME",
 275                                    US"DKIM",
 276                                    US"DATA",
 277 #ifndef DISABLE_PRDR
 278                                    US"PRDR",
 279 #endif
 280                                    US"non-SMTP",
 281                                    US"AUTH",
 282                                    US"connection",
 283                                    US"ETRN",
 284                                    US"EXPN",
 285                                    US"EHLO or HELO",
 286                                    US"MAILAUTH",
 287                                    US"non-SMTP-start",
 288                                    US"NOTQUIT",
 289                                    US"QUIT",
 290                                    US"STARTTLS",
 291                                    US"VRFY",
 292                                    US"delivery",
 293                                    US"unknown"
 294                                  };
 295
 296 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 297                                    US"550",     /* MAIL */
 298                                    US"550",     /* PREDATA */
 299                                    US"550",     /* MIME */
 300                                    US"550",     /* DKIM */
 301                                    US"550",     /* DATA */
 302 #ifndef DISABLE_PRDR
 303                                    US"550",    /* RCPT PRDR */
 304 #endif
 305                                    US"0",       /* not SMTP; not relevant */
 306                                    US"503",     /* AUTH */
 307                                    US"550",     /* connect */
 308                                    US"458",     /* ETRN */
 309                                    US"550",     /* EXPN */
 310                                    US"550",     /* HELO/EHLO */
 311                                    US"0",       /* MAILAUTH; not relevant */
 312                                    US"0",       /* not SMTP; not relevant */
 313                                    US"0",       /* NOTQUIT; not relevant */
 314                                    US"0",       /* QUIT; not relevant */
 315                                    US"550",     /* STARTTLS */
 316                                    US"252",     /* VRFY */
 317                                    US"0",       /* delivery; not relevant */
 318                                    US"0"        /* unknown; not relevant */
 319                                  };
 320
 321 BOOL    active_local_from_check = FALSE;
 322 BOOL    active_local_sender_retain = FALSE;
 323 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 324 uschar *add_environment        = NULL;
 325 address_item  *addr_duplicate  = NULL;
 326
 327 address_item address_defaults = {
 328   NULL,                 /* next */
 329   NULL,                 /* parent */
 330   NULL,                 /* first */
 331   NULL,                 /* dupof */
 332   NULL,                 /* start_router */
 333   NULL,                 /* router */
 334   NULL,                 /* transport */
 335   NULL,                 /* host_list */
 336   NULL,                 /* host_used */
 337   NULL,                 /* fallback_hosts */
 338   NULL,                 /* reply */
 339   NULL,                 /* retries */
 340   NULL,                 /* address */
 341   NULL,                 /* unique */
 342   NULL,                 /* cc_local_part */
 343   NULL,                 /* lc_local_part */
 344   NULL,                 /* local_part */
 345   NULL,                 /* prefix */
 346   NULL,                 /* suffix */
 347   NULL,                 /* domain */
 348   NULL,                 /* address_retry_key */
 349   NULL,                 /* domain_retry_key */
 350   NULL,                 /* current_dir */
 351   NULL,                 /* home_dir */
 352   NULL,                 /* message */
 353   NULL,                 /* user_message */
 354   NULL,                 /* onetime_parent */
 355   NULL,                 /* pipe_expandn */
 356   NULL,                 /* return_filename */
 357   NULL,                 /* self_hostname */
 358   NULL,                 /* shadow_message */
 359 #ifdef SUPPORT_TLS
 360   NULL,                 /* cipher */
 361   NULL,                 /* ourcert */
 362   NULL,                 /* peercert */
 363   NULL,                 /* peerdn */
 364   OCSP_NOT_REQ,         /* ocsp */
 365 #endif
 366 #ifdef EXPERIMENTAL_DSN_INFO
 367   NULL,                 /* smtp_greeting */
 368   NULL,                 /* helo_response */
 369 #endif
 370   NULL,                 /* authenticator */
 371   NULL,                 /* auth_id */
 372   NULL,                 /* auth_sndr */
 373   NULL,                 /* dsn_orcpt */
 374   0,                    /* dsn_flags */
 375   0,                    /* dsn_aware */
 376   (uid_t)(-1),          /* uid */
 377   (gid_t)(-1),          /* gid */
 378   0,                    /* flags */
 379   { 0 },                /* domain_cache - any larger array should be zeroed */
 380   { 0 },                /* localpart_cache - ditto */
 381   -1,                   /* mode */
 382   0,                    /* more_errno */
 383   ERRNO_UNKNOWNERROR,   /* basic_errno */
 384   0,                    /* child_count */
 385   -1,                   /* return_file */
 386   SPECIAL_NONE,         /* special_action */
 387   DEFER,                /* transport_return */
 388   {                     /* fields that are propagated to children */
 389     NULL,               /* address_data */
 390     NULL,               /* domain_data */
 391     NULL,               /* localpart_data */
 392     NULL,               /* errors_address */
 393     NULL,               /* extra_headers */
 394     NULL,               /* remove_headers */
 395 #ifdef EXPERIMENTAL_SRS
 396     NULL,               /* srs_sender */
 397 #endif
 398 #ifdef SUPPORT_I18N
 399     FALSE,              /* utf8 */
 400 #endif
 401   }
 402 };
 403
 404 uschar *address_file           = NULL;
 405 uschar *address_pipe           = NULL;
 406 BOOL    address_test_mode      = FALSE;
 407 tree_node *addresslist_anchor  = NULL;
 408 int     addresslist_count      = 0;
 409 gid_t  *admin_groups           = NULL;
 410 BOOL    admin_user             = FALSE;
 411 BOOL    allow_auth_unadvertised= FALSE;
 412 BOOL    allow_domain_literals  = FALSE;
 413 BOOL    allow_mx_to_ip         = FALSE;
 414 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 415 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 416 BOOL    allow_utf8_domains     = FALSE;
 417 uschar *authenticated_fail_id  = NULL;
 418 uschar *authenticated_id       = NULL;
 419 uschar *authenticated_sender   = NULL;
 420 BOOL    authentication_failed  = FALSE;
 421 auth_instance  *auths          = NULL;
 422 uschar *auth_advertise_hosts   = US"*";
 423 auth_instance auth_defaults    = {
 424     NULL,                      /* chain pointer */
 425     NULL,                      /* name */
 426     NULL,                      /* info */
 427     NULL,                      /* private options block pointer */
 428     NULL,                      /* driver_name */
 429     NULL,                      /* advertise_condition */
 430     NULL,                      /* client_condition */
 431     NULL,                      /* public_name */
 432     NULL,                      /* set_id */
 433     NULL,                      /* set_client_id */
 434     NULL,                      /* server_mail_auth_condition */
 435     NULL,                      /* server_debug_string */
 436     NULL,                      /* server_condition */
 437     FALSE,                     /* client */
 438     FALSE,                     /* server */
 439     FALSE                      /* advertised */
 440 };
 441
 442 uschar *auth_defer_msg         = US"reason not recorded";
 443 uschar *auth_defer_user_msg    = US"";
 444 uschar *auth_vars[AUTH_VARS];
 445 int     auto_thaw              = 0;
 446 #ifdef WITH_CONTENT_SCAN
 447 BOOL    av_failed              = FALSE;
 448 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 449 #endif
 450
 451 BOOL    background_daemon      = TRUE;
 452
 453 #if BASE_62 == 62
 454 uschar *base62_chars=
 455     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 456 #else
 457 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 458 #endif
 459
 460 uschar *bi_command             = NULL;
 461 uschar *big_buffer             = NULL;
 462 int     big_buffer_size        = BIG_BUFFER_SIZE;
 463 #ifdef EXPERIMENTAL_BRIGHTMAIL
 464 uschar *bmi_alt_location       = NULL;
 465 uschar *bmi_base64_tracker_verdict = NULL;
 466 uschar *bmi_base64_verdict     = NULL;
 467 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 468 int     bmi_deliver            = 1;
 469 int     bmi_run                = 0;
 470 uschar *bmi_verdicts           = NULL;
 471 #endif
 472 int     body_8bitmime          = 0;
 473 int     body_linecount         = 0;
 474 int     body_zerocount         = 0;
 475 uschar *bounce_message_file    = NULL;
 476 uschar *bounce_message_text    = NULL;
 477 uschar *bounce_recipient       = NULL;
 478 BOOL    bounce_return_body     = TRUE;
 479 int     bounce_return_linesize_limit = 998;
 480 BOOL    bounce_return_message  = TRUE;
 481 int     bounce_return_size_limit = 100*1024;
 482 uschar *bounce_sender_authentication = NULL;
 483 int     bsmtp_transaction_linecount = 0;
 484
 485 uschar *callout_address        = NULL;
 486 int     callout_cache_domain_positive_expire = 7*24*60*60;
 487 int     callout_cache_domain_negative_expire = 3*60*60;
 488 int     callout_cache_positive_expire = 24*60*60;
 489 int     callout_cache_negative_expire = 2*60*60;
 490 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 491 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 492 int     check_log_inodes       = 0;
 493 int     check_log_space        = 0;
 494 BOOL    check_rfc2047_length   = TRUE;
 495 int     check_spool_inodes     = 0;
 496 int     check_spool_space      = 0;
 497 uschar  *client_authenticator  = NULL;
 498 uschar  *client_authenticated_id = NULL;
 499 uschar  *client_authenticated_sender = NULL;
 500 int     clmacro_count          = 0;
 501 uschar *clmacros[MAX_CLMACROS];
 502 BOOL    config_changed         = FALSE;
 503 FILE   *config_file            = NULL;
 504 uschar *config_filename        = NULL;
 505 int     config_lineno          = 0;
 506 #ifdef CONFIGURE_GROUP
 507 gid_t   config_gid             = CONFIGURE_GROUP;
 508 #endif
 509 uschar *config_main_filelist   = US CONFIGURE_FILE
 510                          "\0<-----------Space to patch configure_filename->";
 511 uschar *config_main_filename   = NULL;
 512 uschar *config_main_directory  = NULL;
 513
 514 #ifdef CONFIGURE_OWNER
 515 uid_t   config_uid             = CONFIGURE_OWNER;
 516 #endif
 517
 518 int     connection_max_messages= -1;
 519 uschar *continue_hostname      = NULL;
 520 uschar *continue_host_address  = NULL;
 521 BOOL    continue_more          = FALSE;
 522 int     continue_sequence      = 1;
 523 uschar *continue_transport     = NULL;
 524
 525 uschar *csa_status             = NULL;
 526 cut_t   cutthrough = {
 527   FALSE,                                /* delivery: when to attempt */
 528   -1,                                   /* fd: open connection */
 529   0,                                    /* nrcpt: number of addresses */
 530 };
 531
 532 BOOL    daemon_listen          = FALSE;
 533 uschar *daemon_smtp_port       = US"smtp";
 534 int     daemon_startup_retries = 9;
 535 int     daemon_startup_sleep   = 30;
 536
 537 #ifdef EXPERIMENTAL_DCC
 538 BOOL    dcc_direct_add_header  = FALSE;
 539 uschar *dcc_header             = NULL;
 540 uschar *dcc_result             = NULL;
 541 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 542 uschar *dccifd_options         = US"header";
 543 #endif
 544
 545 BOOL    debug_daemon           = FALSE;
 546 int     debug_fd               = -1;
 547 FILE   *debug_file             = NULL;
 548 int     debug_notall[]         = {
 549   Di_memory,
 550   -1
 551 };
 552 bit_table debug_options[]      = { /* must be in alphabetical order */
 553   BIT_TABLE(D, acl),
 554   BIT_TABLE(D, all),
 555   BIT_TABLE(D, auth),
 556   BIT_TABLE(D, deliver),
 557   BIT_TABLE(D, dns),
 558   BIT_TABLE(D, dnsbl),
 559   BIT_TABLE(D, exec),
 560   BIT_TABLE(D, expand),
 561   BIT_TABLE(D, filter),
 562   BIT_TABLE(D, hints_lookup),
 563   BIT_TABLE(D, host_lookup),
 564   BIT_TABLE(D, ident),
 565   BIT_TABLE(D, interface),
 566   BIT_TABLE(D, lists),
 567   BIT_TABLE(D, load),
 568   BIT_TABLE(D, local_scan),
 569   BIT_TABLE(D, lookup),
 570   BIT_TABLE(D, memory),
 571   BIT_TABLE(D, pid),
 572   BIT_TABLE(D, process_info),
 573   BIT_TABLE(D, queue_run),
 574   BIT_TABLE(D, receive),
 575   BIT_TABLE(D, resolver),
 576   BIT_TABLE(D, retry),
 577   BIT_TABLE(D, rewrite),
 578   BIT_TABLE(D, route),
 579   BIT_TABLE(D, timestamp),
 580   BIT_TABLE(D, tls),
 581   BIT_TABLE(D, transport),
 582   BIT_TABLE(D, uid),
 583   BIT_TABLE(D, verify),
 584 };
 585 int     debug_options_count    = nelem(debug_options);
 586
 587 unsigned int debug_selector    = 0;
 588 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 589 uschar *delay_warning_condition=
 590   US"${if or {"
 591             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 592             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 593             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 594             "} {no}{yes}}";
 595 BOOL    delivery_date_remove   = TRUE;
 596 uschar *deliver_address_data   = NULL;
 597 int     deliver_datafile       = -1;
 598 const uschar *deliver_domain   = NULL;
 599 uschar *deliver_domain_data    = NULL;
 600 const uschar *deliver_domain_orig = NULL;
 601 const uschar *deliver_domain_parent = NULL;
 602 BOOL    deliver_drop_privilege = FALSE;
 603 BOOL    deliver_firsttime      = FALSE;
 604 BOOL    deliver_force          = FALSE;
 605 BOOL    deliver_freeze         = FALSE;
 606 time_t  deliver_frozen_at      = 0;
 607 uschar *deliver_home           = NULL;
 608 const uschar *deliver_host     = NULL;
 609 const uschar *deliver_host_address = NULL;
 610 int     deliver_host_port      = 0;
 611 uschar *deliver_in_buffer      = NULL;
 612 ino_t   deliver_inode          = 0;
 613 uschar *deliver_localpart      = NULL;
 614 uschar *deliver_localpart_data = NULL;
 615 uschar *deliver_localpart_orig = NULL;
 616 uschar *deliver_localpart_parent = NULL;
 617 uschar *deliver_localpart_prefix = NULL;
 618 uschar *deliver_localpart_suffix = NULL;
 619 BOOL    deliver_force_thaw     = FALSE;
 620 BOOL    deliver_manual_thaw    = FALSE;
 621 uschar *deliver_out_buffer     = NULL;
 622 int     deliver_queue_load_max = -1;
 623 address_item  *deliver_recipients = NULL;
 624 uschar *deliver_selectstring   = NULL;
 625 BOOL    deliver_selectstring_regex = FALSE;
 626 uschar *deliver_selectstring_sender = NULL;
 627 BOOL    deliver_selectstring_sender_regex = FALSE;
 628 #ifdef WITH_OLD_DEMIME
 629 int     demime_errorlevel      = 0;
 630 int     demime_ok              = 0;
 631 uschar *demime_reason          = NULL;
 632 #endif
 633 BOOL    disable_callout_flush  = FALSE;
 634 BOOL    disable_delay_flush    = FALSE;
 635 #ifdef ENABLE_DISABLE_FSYNC
 636 BOOL    disable_fsync          = FALSE;
 637 #endif
 638 BOOL    disable_ipv6           = FALSE;
 639 BOOL    disable_logging        = FALSE;
 640
 641 #ifndef DISABLE_DKIM
 642 BOOL    dkim_collect_input       = FALSE;
 643 uschar *dkim_cur_signer          = NULL;
 644 BOOL    dkim_disable_verify      = FALSE;
 645 int     dkim_key_length          = 0;
 646 uschar *dkim_signers             = NULL;
 647 uschar *dkim_signing_domain      = NULL;
 648 uschar *dkim_signing_selector    = NULL;
 649 uschar *dkim_verify_signers      = US"$dkim_signers";
 650 #endif
 651 #ifdef EXPERIMENTAL_DMARC
 652 BOOL    dmarc_has_been_checked  = FALSE;
 653 uschar *dmarc_ar_header         = NULL;
 654 uschar *dmarc_domain_policy     = NULL;
 655 uschar *dmarc_forensic_sender   = NULL;
 656 uschar *dmarc_history_file      = NULL;
 657 uschar *dmarc_status            = NULL;
 658 uschar *dmarc_status_text       = NULL;
 659 uschar *dmarc_tld_file          = NULL;
 660 uschar *dmarc_used_domain       = NULL;
 661 BOOL    dmarc_disable_verify    = FALSE;
 662 BOOL    dmarc_enable_forensic   = FALSE;
 663 #endif
 664
 665 uschar *dns_again_means_nonexist = NULL;
 666 int     dns_csa_search_limit   = 5;
 667 BOOL    dns_csa_use_reverse    = TRUE;
 668 #ifdef EXPERIMENTAL_DANE
 669 int     dns_dane_ok            = -1;
 670 #endif
 671 uschar *dns_ipv4_lookup        = NULL;
 672 int     dns_retrans            = 0;
 673 int     dns_retry              = 0;
 674 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 675 uschar *dns_trust_aa           = NULL;
 676 int     dns_use_edns0          = -1; /* <0 = not coerced */
 677 uschar *dnslist_domain         = NULL;
 678 uschar *dnslist_matched        = NULL;
 679 uschar *dnslist_text           = NULL;
 680 uschar *dnslist_value          = NULL;
 681 tree_node *domainlist_anchor   = NULL;
 682 int     domainlist_count       = 0;
 683 BOOL    dont_deliver           = FALSE;
 684 BOOL    dot_ends               = TRUE;
 685 BOOL    drop_cr                = FALSE;         /* No longer used */
 686 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 687
 688 BOOL    enable_dollar_recipients = FALSE;
 689 BOOL    envelope_to_remove     = TRUE;
 690 int     errno_quota            = ERRNO_QUOTA;
 691 uschar *errors_copy            = NULL;
 692 int     error_handling         = ERRORS_SENDER;
 693 uschar *errors_reply_to        = NULL;
 694 int     errors_sender_rc       = EXIT_FAILURE;
 695 #ifndef DISABLE_EVENT
 696 uschar *event_action             = NULL;        /* expansion for delivery events */
 697 uschar *event_data               = NULL;        /* auxilary data variable for event */
 698 int     event_defer_errno        = 0;
 699 const uschar *event_name         = NULL;        /* event name variable */
 700 #endif
 701
 702
 703 gid_t   exim_gid               = EXIM_GID;
 704 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 705 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 706                         "\0<---------------Space to patch exim_path->";
 707 uid_t   exim_uid               = EXIM_UID;
 708 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 709 int     expand_forbid          = 0;
 710 int     expand_nlength[EXPAND_MAXN+1];
 711 int     expand_nmax            = -1;
 712 uschar *expand_nstring[EXPAND_MAXN+1];
 713 BOOL    expand_string_forcedfail = FALSE;
 714 uschar *expand_string_message;
 715 BOOL    extract_addresses_remove_arguments = TRUE;
 716 uschar *extra_local_interfaces = NULL;
 717
 718 int     fake_response          = OK;
 719 uschar *fake_response_text     = US"Your message has been rejected but is "
 720                                    "being kept for evaluation.\nIf it was a "
 721                                    "legitimate message, it may still be "
 722                                    "delivered to the target recipient(s).";
 723 int     filter_n[FILTER_VARIABLE_COUNT];
 724 BOOL    filter_running         = FALSE;
 725 int     filter_sn[FILTER_VARIABLE_COUNT];
 726 int     filter_test            = FTEST_NONE;
 727 uschar *filter_test_sfile      = NULL;
 728 uschar *filter_test_ufile      = NULL;
 729 uschar *filter_thisaddress     = NULL;
 730 int     finduser_retries       = 0;
 731 #ifdef WITH_OLD_DEMIME
 732 uschar *found_extension        = NULL;
 733 #endif
 734 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 735 uschar *freeze_tell            = NULL;
 736 uschar *freeze_tell_config     = NULL;
 737 uschar *fudged_queue_times     = US"";
 738
 739 uschar *gecos_name             = NULL;
 740 uschar *gecos_pattern          = NULL;
 741 rewrite_rule  *global_rewrite_rules = NULL;
 742
 743 uschar *headers_charset        = US HEADERS_CHARSET;
 744 int     header_insert_maxlen   = 64 * 1024;
 745 header_line  *header_last      = NULL;
 746 header_line  *header_list      = NULL;
 747 int     header_maxsize         = HEADER_MAXSIZE;
 748 int     header_line_maxsize    = 0;
 749
 750 header_name header_names[] = {
 751   { US"bcc",            3, TRUE,  htype_bcc },
 752   { US"cc",             2, TRUE,  htype_cc },
 753   { US"date",           4, TRUE,  htype_date },
 754   { US"delivery-date", 13, FALSE, htype_delivery_date },
 755   { US"envelope-to",   11, FALSE, htype_envelope_to },
 756   { US"from",           4, TRUE,  htype_from },
 757   { US"message-id",    10, TRUE,  htype_id },
 758   { US"received",       8, FALSE, htype_received },
 759   { US"reply-to",       8, FALSE, htype_reply_to },
 760   { US"return-path",   11, FALSE, htype_return_path },
 761   { US"sender",         6, TRUE,  htype_sender },
 762   { US"subject",        7, FALSE, htype_subject },
 763   { US"to",             2, TRUE,  htype_to }
 764 };
 765
 766 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 767
 768 BOOL    header_rewritten       = FALSE;
 769 uschar *helo_accept_junk_hosts = NULL;
 770 uschar *helo_allow_chars       = US"";
 771 uschar *helo_lookup_domains    = US"@ : @[]";
 772 uschar *helo_try_verify_hosts  = NULL;
 773 BOOL    helo_verified          = FALSE;
 774 BOOL    helo_verify_failed     = FALSE;
 775 uschar *helo_verify_hosts      = NULL;
 776 const uschar *hex_digits       = CUS"0123456789abcdef";
 777 uschar *hold_domains           = NULL;
 778 BOOL    host_checking          = FALSE;
 779 BOOL    host_checking_callout  = FALSE;
 780 uschar *host_data              = NULL;
 781 BOOL    host_find_failed_syntax= FALSE;
 782 uschar *host_lookup            = NULL;
 783 BOOL    host_lookup_deferred   = FALSE;
 784 BOOL    host_lookup_failed     = FALSE;
 785 uschar *host_lookup_order      = US"bydns:byaddr";
 786 uschar *host_lookup_msg        = US"";
 787 int     host_number            = 0;
 788 uschar *host_number_string     = NULL;
 789 uschar *host_reject_connection = NULL;
 790 tree_node *hostlist_anchor     = NULL;
 791 int     hostlist_count         = 0;
 792 uschar *hosts_treat_as_local   = NULL;
 793 uschar *hosts_connection_nolog = NULL;
 794
 795 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 796 BOOL    ignore_fromline_local  = FALSE;
 797 uschar *ignore_fromline_hosts  = NULL;
 798 BOOL    inetd_wait_mode        = FALSE;
 799 int     inetd_wait_timeout     = -1;
 800 uschar *initial_cwd            = NULL;
 801 uschar *interface_address      = NULL;
 802 int     interface_port         = -1;
 803 BOOL    is_inetd               = FALSE;
 804 uschar *iterate_item           = NULL;
 805
 806 int     journal_fd             = -1;
 807
 808 uschar *keep_environment       = NULL;
 809
 810 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 811
 812 uschar *eldap_dn               = NULL;
 813 int     load_average           = -2;
 814 BOOL    local_error_message    = FALSE;
 815 BOOL    local_from_check       = TRUE;
 816 uschar *local_from_prefix      = NULL;
 817 uschar *local_from_suffix      = NULL;
 818
 819 #if HAVE_IPV6
 820 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 821 #else
 822 uschar *local_interfaces       = US"0.0.0.0";
 823 #endif
 824
 825 uschar *local_scan_data        = NULL;
 826 int     local_scan_timeout     = 5*60;
 827 BOOL    local_sender_retain    = FALSE;
 828 gid_t   local_user_gid         = (gid_t)(-1);
 829 uid_t   local_user_uid         = (uid_t)(-1);
 830
 831 tree_node *localpartlist_anchor= NULL;
 832 int     localpartlist_count    = 0;
 833 uschar *log_buffer             = NULL;
 834
 835 int     log_default[]          = { /* for initializing log_selector */
 836   Li_acl_warn_skipped,
 837   Li_connection_reject,
 838   Li_delay_delivery,
 839   Li_dnslist_defer,
 840   Li_etrn,
 841   Li_host_lookup_failed,
 842   Li_lost_incoming_connection,
 843   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 844   Li_queue_run,
 845   Li_rejected_header,
 846   Li_retry_defer,
 847   Li_sender_verify_fail,
 848   Li_size_reject,
 849   Li_skip_delivery,
 850   Li_smtp_confirmation,
 851   Li_tls_certificate_verified,
 852   Li_tls_cipher,
 853   -1
 854 };
 855
 856 uschar *log_file_path          = US LOG_FILE_PATH
 857                            "\0<--------------Space to patch log_file_path->";
 858
 859 int     log_notall[]           = {
 860   -1
 861 };
 862 bit_table log_options[]        = { /* must be in alphabetical order */
 863   BIT_TABLE(L, 8bitmime),
 864   BIT_TABLE(L, acl_warn_skipped),
 865   BIT_TABLE(L, address_rewrite),
 866   BIT_TABLE(L, all),
 867   BIT_TABLE(L, all_parents),
 868   BIT_TABLE(L, arguments),
 869   BIT_TABLE(L, connection_reject),
 870   BIT_TABLE(L, delay_delivery),
 871   BIT_TABLE(L, deliver_time),
 872   BIT_TABLE(L, delivery_size),
 873   BIT_TABLE(L, dnslist_defer),
 874   BIT_TABLE(L, etrn),
 875   BIT_TABLE(L, host_lookup_failed),
 876   BIT_TABLE(L, ident_timeout),
 877   BIT_TABLE(L, incoming_interface),
 878   BIT_TABLE(L, incoming_port),
 879   BIT_TABLE(L, lost_incoming_connection),
 880   BIT_TABLE(L, outgoing_interface),
 881   BIT_TABLE(L, outgoing_port),
 882   BIT_TABLE(L, pid),
 883 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 884   BIT_TABLE(L, proxy),
 885 #endif
 886   BIT_TABLE(L, queue_run),
 887   BIT_TABLE(L, queue_time),
 888   BIT_TABLE(L, queue_time_overall),
 889   BIT_TABLE(L, received_recipients),
 890   BIT_TABLE(L, received_sender),
 891   BIT_TABLE(L, rejected_header),
 892   { US"rejected_headers", Li_rejected_header },
 893   BIT_TABLE(L, retry_defer),
 894   BIT_TABLE(L, return_path_on_delivery),
 895   BIT_TABLE(L, sender_on_delivery),
 896   BIT_TABLE(L, sender_verify_fail),
 897   BIT_TABLE(L, size_reject),
 898   BIT_TABLE(L, skip_delivery),
 899   BIT_TABLE(L, smtp_confirmation),
 900   BIT_TABLE(L, smtp_connection),
 901   BIT_TABLE(L, smtp_incomplete_transaction),
 902   BIT_TABLE(L, smtp_mailauth),
 903   BIT_TABLE(L, smtp_no_mail),
 904   BIT_TABLE(L, smtp_protocol_error),
 905   BIT_TABLE(L, smtp_syntax_error),
 906   BIT_TABLE(L, subject),
 907   BIT_TABLE(L, tls_certificate_verified),
 908   BIT_TABLE(L, tls_cipher),
 909   BIT_TABLE(L, tls_peerdn),
 910   BIT_TABLE(L, tls_sni),
 911   BIT_TABLE(L, unknown_in_list),
 912 };
 913 int     log_options_count      = nelem(log_options);
 914
 915 int     log_reject_target      = 0;
 916 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 917 uschar *log_selector_string    = NULL;
 918 FILE   *log_stderr             = NULL;
 919 BOOL    log_testing_mode       = FALSE;
 920 BOOL    log_timezone           = FALSE;
 921 uschar *login_sender_address   = NULL;
 922 uschar *lookup_dnssec_authenticated = NULL;
 923 int     lookup_open_max        = 25;
 924 uschar *lookup_value           = NULL;
 925
 926 macro_item  *macros            = NULL;
 927 uschar *mailstore_basename     = NULL;
 928 #ifdef WITH_CONTENT_SCAN
 929 uschar *malware_name           = NULL;  /* Virus Name */
 930 #endif
 931 int     max_received_linelength= 0;
 932 int     max_username_length    = 0;
 933 int     message_age            = 0;
 934 uschar *message_body           = NULL;
 935 uschar *message_body_end       = NULL;
 936 BOOL    message_body_newlines  = FALSE;
 937 int     message_body_size      = 0;
 938 int     message_body_visible   = 500;
 939 int     message_ended          = END_NOTSTARTED;
 940 uschar *message_headers        = NULL;
 941 uschar *message_id;
 942 uschar *message_id_domain      = NULL;
 943 uschar *message_id_text        = NULL;
 944 struct timeval message_id_tv   = { 0, 0 };
 945 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 946 uschar *message_id_external;
 947 int     message_linecount      = 0;
 948 BOOL    message_logs           = TRUE;
 949 int     message_size           = 0;
 950 uschar *message_size_limit     = US"50M";
 951 #ifdef SUPPORT_I18N
 952 BOOL    message_smtputf8       = FALSE;
 953 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 954 #endif
 955 uschar  message_subdir[2]      = { 0, 0 };
 956 uschar *message_reference      = NULL;
 957
 958 /* MIME ACL expandables */
 959 #ifdef WITH_CONTENT_SCAN
 960 int     mime_anomaly_level     = 0;
 961 const uschar *mime_anomaly_text      = NULL;
 962 uschar *mime_boundary          = NULL;
 963 uschar *mime_charset           = NULL;
 964 uschar *mime_content_description = NULL;
 965 uschar *mime_content_disposition = NULL;
 966 uschar *mime_content_id        = NULL;
 967 unsigned int mime_content_size = 0;
 968 uschar *mime_content_transfer_encoding = NULL;
 969 uschar *mime_content_type      = NULL;
 970 uschar *mime_decoded_filename  = NULL;
 971 uschar *mime_filename          = NULL;
 972 int     mime_is_multipart      = 0;
 973 int     mime_is_coverletter    = 0;
 974 int     mime_is_rfc822         = 0;
 975 int     mime_part_count        = -1;
 976 #endif
 977
 978 BOOL    mua_wrapper            = FALSE;
 979
 980 uid_t  *never_users            = NULL;
 981 #ifdef WITH_CONTENT_SCAN
 982 BOOL    no_mbox_unspool        = FALSE;
 983 #endif
 984 BOOL    no_multiline_responses = FALSE;
 985
 986 uid_t   original_euid;
 987 gid_t   originator_gid;
 988 uschar *originator_login       = NULL;
 989 uschar *originator_name        = NULL;
 990 uid_t   originator_uid;
 991 uschar *override_local_interfaces = NULL;
 992 uschar *override_pid_file_path = NULL;
 993
 994 BOOL    parse_allow_group      = FALSE;
 995 BOOL    parse_found_group      = FALSE;
 996 uschar *percent_hack_domains   = NULL;
 997 uschar *pid_file_path          = US PID_FILE_PATH
 998                            "\0<--------------Space to patch pid_file_path->";
 999 BOOL    pipelining_enable      = TRUE;
1000 uschar *pipelining_advertise_hosts = US"*";
1001 BOOL    preserve_message_logs  = FALSE;
1002 uschar *primary_hostname       = NULL;
1003 BOOL    print_topbitchars      = FALSE;
1004 uschar  process_info[PROCESS_INFO_SIZE];
1005 int     process_info_len       = 0;
1006 uschar *process_log_path       = NULL;
1007 BOOL    prod_requires_admin    = TRUE;
1008
1009 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1010 uschar *hosts_proxy            = US"";
1011 uschar *proxy_external_address = US"";
1012 int     proxy_external_port    = 0;
1013 uschar *proxy_local_address    = US"";
1014 int     proxy_local_port       = 0;
1015 BOOL    proxy_session          = FALSE;
1016 BOOL    proxy_session_failed   = FALSE;
1017 #endif
1018
1019 uschar *prvscheck_address      = NULL;
1020 uschar *prvscheck_keynum       = NULL;
1021 uschar *prvscheck_result       = NULL;
1022
1023
1024 const uschar *qualify_domain_recipient = NULL;
1025 uschar *qualify_domain_sender  = NULL;
1026 BOOL    queue_2stage           = FALSE;
1027 uschar *queue_domains          = NULL;
1028 int     queue_interval         = -1;
1029 BOOL    queue_list_requires_admin = TRUE;
1030 BOOL    queue_only             = FALSE;
1031 uschar *queue_only_file        = NULL;
1032 int     queue_only_load        = -1;
1033 BOOL    queue_only_load_latch  = TRUE;
1034 BOOL    queue_only_override    = TRUE;
1035 BOOL    queue_only_policy      = FALSE;
1036 BOOL    queue_run_first_delivery = FALSE;
1037 BOOL    queue_run_force        = FALSE;
1038 BOOL    queue_run_in_order     = FALSE;
1039 BOOL    queue_run_local        = FALSE;
1040 int     queue_run_max          = 5;
1041 pid_t   queue_run_pid          = (pid_t)0;
1042 int     queue_run_pipe         = -1;
1043 BOOL    queue_running          = FALSE;
1044 BOOL    queue_smtp             = FALSE;
1045 uschar *queue_smtp_domains     = NULL;
1046
1047 unsigned int random_seed       = 0;
1048 tree_node *ratelimiters_cmd    = NULL;
1049 tree_node *ratelimiters_conn   = NULL;
1050 tree_node *ratelimiters_mail   = NULL;
1051 uschar *raw_active_hostname    = NULL;
1052 uschar *raw_sender             = NULL;
1053 uschar **raw_recipients        = NULL;
1054 int     raw_recipients_count   = 0;
1055
1056 int     rcpt_count             = 0;
1057 int     rcpt_fail_count        = 0;
1058 int     rcpt_defer_count       = 0;
1059 gid_t   real_gid;
1060 uid_t   real_uid;
1061 BOOL    really_exim            = TRUE;
1062 BOOL    receive_call_bombout   = FALSE;
1063 int     receive_linecount      = 0;
1064 int     receive_messagecount   = 0;
1065 int     receive_timeout        = 0;
1066 int     received_count         = 0;
1067 uschar *received_for           = NULL;
1068
1069 /*  This is the default text for Received headers generated by Exim. The
1070 date  will be automatically added on the end. */
1071
1072 uschar *received_header_text   = US
1073      "Received: "
1074      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1075      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1076      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1077      "by $primary_hostname "
1078      "${if def:received_protocol {with $received_protocol}} "
1079      #ifdef SUPPORT_TLS
1080      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1081      #endif
1082      "(Exim $version_number)\n\t"
1083      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1084      "id $message_exim_id"
1085      "${if def:received_for {\n\tfor $received_for}}"
1086      "\0<---------------Space to patch received_header_text->";
1087
1088 int     received_headers_max   = 30;
1089 uschar *received_protocol      = NULL;
1090 int     received_time          = 0;
1091 uschar *recipient_data         = NULL;
1092 uschar *recipient_unqualified_hosts = NULL;
1093 uschar *recipient_verify_failure = NULL;
1094 int     recipients_count       = 0;
1095 BOOL    recipients_discarded   = FALSE;
1096 recipient_item  *recipients_list = NULL;
1097 int     recipients_list_max    = 0;
1098 int     recipients_max         = 0;
1099 BOOL    recipients_max_reject  = FALSE;
1100 const pcre *regex_AUTH         = NULL;
1101 const pcre *regex_check_dns_names = NULL;
1102 const pcre *regex_From         = NULL;
1103 const pcre *regex_IGNOREQUOTA  = NULL;
1104 const pcre *regex_PIPELINING   = NULL;
1105 const pcre *regex_SIZE         = NULL;
1106 const pcre *regex_ismsgid      = NULL;
1107 const pcre *regex_smtp_code    = NULL;
1108 uschar *regex_vars[REGEX_VARS];
1109 #ifdef WHITELIST_D_MACROS
1110 const pcre *regex_whitelisted_macro = NULL;
1111 #endif
1112 #ifdef WITH_CONTENT_SCAN
1113 uschar *regex_match_string     = NULL;
1114 #endif
1115 int     remote_delivery_count  = 0;
1116 int     remote_max_parallel    = 2;
1117 uschar *remote_sort_domains    = NULL;
1118 int     retry_data_expire      = 7*24*60*60;
1119 int     retry_interval_max     = 24*60*60;
1120 int     retry_maximum_timeout  = 0;        /* set from retry config */
1121 retry_config  *retries         = NULL;
1122 uschar *return_path            = NULL;
1123 BOOL    return_path_remove     = TRUE;
1124 int     rewrite_existflags     = 0;
1125 uschar *rfc1413_hosts          = US"@[]";
1126 int     rfc1413_query_timeout  = 0;
1127 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1128 uid_t   root_gid               = ROOT_GID;
1129 uid_t   root_uid               = ROOT_UID;
1130
1131 router_instance  *routers  = NULL;
1132 router_instance  router_defaults = {
1133     NULL,                      /* chain pointer */
1134     NULL,                      /* name */
1135     NULL,                      /* info */
1136     NULL,                      /* private options block pointer */
1137     NULL,                      /* driver name */
1138
1139     NULL,                      /* address_data */
1140 #ifdef EXPERIMENTAL_BRIGHTMAIL
1141     NULL,                      /* bmi_rule */
1142 #endif
1143     NULL,                      /* cannot_route_message */
1144     NULL,                      /* condition */
1145     NULL,                      /* current_directory */
1146     NULL,                      /* debug_string */
1147     NULL,                      /* domains */
1148     NULL,                      /* errors_to */
1149     NULL,                      /* expand_gid */
1150     NULL,                      /* expand_uid */
1151     NULL,                      /* expand_more */
1152     NULL,                      /* expand_unseen */
1153     NULL,                      /* extra_headers */
1154     NULL,                      /* fallback_hosts */
1155     NULL,                      /* home_directory */
1156     NULL,                      /* ignore_target_hosts */
1157     NULL,                      /* local_parts */
1158     NULL,                      /* pass_router_name */
1159     NULL,                      /* prefix */
1160     NULL,                      /* redirect_router_name */
1161     NULL,                      /* remove_headers */
1162     NULL,                      /* require_files */
1163     NULL,                      /* router_home_directory */
1164     US"freeze",                /* self */
1165     NULL,                      /* senders */
1166     NULL,                      /* suffix */
1167     NULL,                      /* translate_ip_address */
1168     NULL,                      /* transport_name */
1169
1170     TRUE,                      /* address_test */
1171 #ifdef EXPERIMENTAL_BRIGHTMAIL
1172     FALSE,                     /* bmi_deliver_alternate */
1173     FALSE,                     /* bmi_deliver_default */
1174     FALSE,                     /* bmi_dont_deliver */
1175 #endif
1176     TRUE,                      /* expn */
1177     FALSE,                     /* caseful_local_part */
1178     FALSE,                     /* check_local_user */
1179     FALSE,                     /* disable_logging */
1180     FALSE,                     /* fail_verify_recipient */
1181     FALSE,                     /* fail_verify_sender */
1182     FALSE,                     /* gid_set */
1183     FALSE,                     /* initgroups */
1184     TRUE_UNSET,                /* log_as_local */
1185     TRUE,                      /* more */
1186     FALSE,                     /* pass_on_timeout */
1187     FALSE,                     /* prefix_optional */
1188     TRUE,                      /* repeat_use */
1189     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1190     FALSE,                     /* same_domain_copy_routing */
1191     FALSE,                     /* self_rewrite */
1192     FALSE,                     /* suffix_optional */
1193     FALSE,                     /* verify_only */
1194     TRUE,                      /* verify_recipient */
1195     TRUE,                      /* verify_sender */
1196     FALSE,                     /* uid_set */
1197     FALSE,                     /* unseen */
1198     FALSE,                     /* dsn_lasthop */
1199
1200     self_freeze,               /* self_code */
1201     (uid_t)(-1),               /* uid */
1202     (gid_t)(-1),               /* gid */
1203
1204     NULL,                      /* fallback_hostlist */
1205     NULL,                      /* transport instance */
1206     NULL,                      /* pass_router */
1207     NULL,                      /* redirect_router */
1208
1209     { NULL, NULL },            /* dnssec_domains {require,request} */
1210 };
1211
1212 uschar *router_name            = NULL;
1213
1214 ip_address_item *running_interfaces = NULL;
1215 BOOL    running_in_test_harness = FALSE;
1216
1217 /* This is a weird one. The following string gets patched in the binary by the
1218 script that sets up a copy of Exim for running in the test harness. It seems
1219 that compilers are now clever, and share constant strings if they can.
1220 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1221 make use of the end of this string in order to save space. So the patching then
1222 wrecks this. We defeat this optimization by adding some additional characters
1223 onto the end of the string. */
1224
1225 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1226
1227 int     runrc                  = 0;
1228
1229 uschar *search_error_message   = NULL;
1230 BOOL    search_find_defer      = FALSE;
1231 uschar *self_hostname          = NULL;
1232 uschar *sender_address         = NULL;
1233 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1234 uschar *sender_address_data    = NULL;
1235 BOOL    sender_address_forced  = FALSE;
1236 uschar *sender_address_unrewritten = NULL;
1237 uschar *sender_data            = NULL;
1238 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1239 uschar *sender_fullhost        = NULL;
1240 BOOL    sender_helo_dnssec     = FALSE;
1241 uschar *sender_helo_name       = NULL;
1242 uschar **sender_host_aliases   = &no_aliases;
1243 uschar *sender_host_address    = NULL;
1244 uschar *sender_host_authenticated = NULL;
1245 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1246 BOOL    sender_host_dnssec     = FALSE;
1247 uschar *sender_host_name       = NULL;
1248 int     sender_host_port       = 0;
1249 BOOL    sender_host_notsocket  = FALSE;
1250 BOOL    sender_host_unknown    = FALSE;
1251 uschar *sender_ident           = NULL;
1252 BOOL    sender_local           = FALSE;
1253 BOOL    sender_name_forced     = FALSE;
1254 uschar *sender_rate            = NULL;
1255 uschar *sender_rate_limit      = NULL;
1256 uschar *sender_rate_period     = NULL;
1257 uschar *sender_rcvhost         = NULL;
1258 BOOL    sender_set_untrusted   = FALSE;
1259 uschar *sender_unqualified_hosts = NULL;
1260 uschar *sender_verify_failure = NULL;
1261 address_item *sender_verified_list  = NULL;
1262 address_item *sender_verified_failed = NULL;
1263 int     sender_verified_rc     = -1;
1264 BOOL    sender_verified_responded = FALSE;
1265 uschar *sending_ip_address     = NULL;
1266 int     sending_port           = -1;
1267 SIGNAL_BOOL sigalrm_seen       = FALSE;
1268 uschar **sighup_argv           = NULL;
1269 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1270 int     smtp_accept_count      = 0;
1271 BOOL    smtp_accept_keepalive  = TRUE;
1272 int     smtp_accept_max        = 20;
1273 int     smtp_accept_max_nonmail= 10;
1274 uschar *smtp_accept_max_nonmail_hosts = US"*";
1275 int     smtp_accept_max_per_connection = 1000;
1276 uschar *smtp_accept_max_per_host = NULL;
1277 int     smtp_accept_queue      = 0;
1278 int     smtp_accept_queue_per_connection = 10;
1279 int     smtp_accept_reserve    = 0;
1280 uschar *smtp_active_hostname   = NULL;
1281 BOOL    smtp_authenticated     = FALSE;
1282 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1283                              "Exim $version_number $tod_full"
1284                              "\0<---------------Space to patch smtp_banner->";
1285 BOOL    smtp_batched_input     = FALSE;
1286 BOOL    smtp_check_spool_space = TRUE;
1287 int     smtp_ch_index          = 0;
1288 uschar *smtp_cmd_argument      = NULL;
1289 uschar *smtp_cmd_buffer        = NULL;
1290 time_t  smtp_connection_start  = 0;
1291 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1292 int     smtp_connect_backlog   = 20;
1293 double  smtp_delay_mail        = 0.0;
1294 double  smtp_delay_rcpt        = 0.0;
1295 BOOL    smtp_enforce_sync      = TRUE;
1296 FILE   *smtp_in                = NULL;
1297 BOOL    smtp_input             = FALSE;
1298 int     smtp_load_reserve      = -1;
1299 int     smtp_mailcmd_count     = 0;
1300 FILE   *smtp_out               = NULL;
1301 uschar *smtp_etrn_command      = NULL;
1302 BOOL    smtp_etrn_serialize    = TRUE;
1303 int     smtp_max_synprot_errors= 3;
1304 int     smtp_max_unknown_commands = 3;
1305 uschar *smtp_notquit_reason    = NULL;
1306 uschar *smtp_ratelimit_hosts   = NULL;
1307 uschar *smtp_ratelimit_mail    = NULL;
1308 uschar *smtp_ratelimit_rcpt    = NULL;
1309 uschar *smtp_read_error        = US"";
1310 int     smtp_receive_timeout   = 5*60;
1311 uschar *smtp_receive_timeout_s = NULL;
1312 uschar *smtp_reserve_hosts     = NULL;
1313 BOOL    smtp_return_error_details = FALSE;
1314 int     smtp_rlm_base          = 0;
1315 double  smtp_rlm_factor        = 0.0;
1316 int     smtp_rlm_limit         = 0;
1317 int     smtp_rlm_threshold     = INT_MAX;
1318 int     smtp_rlr_base          = 0;
1319 double  smtp_rlr_factor        = 0.0;
1320 int     smtp_rlr_limit         = 0;
1321 int     smtp_rlr_threshold     = INT_MAX;
1322 BOOL    smtp_use_pipelining    = FALSE;
1323 BOOL    smtp_use_size          = FALSE;
1324 #ifdef SUPPORT_I18N
1325 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1326 #endif
1327
1328 #ifdef WITH_CONTENT_SCAN
1329 uschar *spamd_address          = US"127.0.0.1 783";
1330 uschar *spam_bar               = NULL;
1331 uschar *spam_report            = NULL;
1332 uschar *spam_action            = NULL;
1333 uschar *spam_score             = NULL;
1334 uschar *spam_score_int         = NULL;
1335 #endif
1336 #ifdef EXPERIMENTAL_SPF
1337 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1338 uschar *spf_header_comment     = NULL;
1339 uschar *spf_received           = NULL;
1340 uschar *spf_result             = NULL;
1341 uschar *spf_smtp_comment       = NULL;
1342 #endif
1343
1344 BOOL    split_spool_directory  = FALSE;
1345 uschar *spool_directory        = US SPOOL_DIRECTORY
1346                            "\0<--------------Space to patch spool_directory->";
1347 #ifdef EXPERIMENTAL_SRS
1348 uschar *srs_config             = NULL;
1349 uschar *srs_db_address         = NULL;
1350 uschar *srs_db_key             = NULL;
1351 int     srs_hashlength         = 6;
1352 int     srs_hashmin            = -1;
1353 int     srs_maxage             = 31;
1354 uschar *srs_orig_recipient     = NULL;
1355 uschar *srs_orig_sender        = NULL;
1356 uschar *srs_recipient          = NULL;
1357 uschar *srs_secrets            = NULL;
1358 uschar *srs_status             = NULL;
1359 BOOL    srs_usehash            = TRUE;
1360 BOOL    srs_usetimestamp       = TRUE;
1361 #endif
1362 BOOL    strict_acl_vars        = FALSE;
1363 int     string_datestamp_offset= -1;
1364 int     string_datestamp_length= 0;
1365 int     string_datestamp_type  = -1;
1366 BOOL    strip_excess_angle_brackets = FALSE;
1367 BOOL    strip_trailing_dot     = FALSE;
1368 uschar *submission_domain      = NULL;
1369 BOOL    submission_mode        = FALSE;
1370 uschar *submission_name        = NULL;
1371 BOOL    suppress_local_fixups  = FALSE;
1372 BOOL    suppress_local_fixups_default = FALSE;
1373 BOOL    synchronous_delivery   = FALSE;
1374 BOOL    syslog_duplication     = TRUE;
1375 int     syslog_facility        = LOG_MAIL;
1376 uschar *syslog_processname     = US"exim";
1377 BOOL    syslog_timestamp       = TRUE;
1378 uschar *system_filter          = NULL;
1379
1380 uschar *system_filter_directory_transport = NULL;
1381 uschar *system_filter_file_transport = NULL;
1382 uschar *system_filter_pipe_transport = NULL;
1383 uschar *system_filter_reply_transport = NULL;
1384
1385 gid_t   system_filter_gid      = 0;
1386 BOOL    system_filter_gid_set  = FALSE;
1387 uid_t   system_filter_uid      = (uid_t)-1;
1388 BOOL    system_filter_uid_set  = FALSE;
1389 BOOL    system_filtering       = FALSE;
1390
1391 BOOL    tcp_nodelay            = TRUE;
1392 #ifdef USE_TCP_WRAPPERS
1393 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1394 #endif
1395 int     test_harness_load_avg  = 0;
1396 int     thismessage_size_limit = 0;
1397 int     timeout_frozen_after   = 0;
1398 BOOL    timestamps_utc         = FALSE;
1399
1400 transport_instance  *transports = NULL;
1401
1402 transport_instance  transport_defaults = {
1403     NULL,                     /* chain pointer */
1404     NULL,                     /* name */
1405     NULL,                     /* info */
1406     NULL,                     /* private options block pointer */
1407     NULL,                     /* driver name */
1408     NULL,                     /* setup entry point */
1409     1,                        /* batch_max */
1410     NULL,                     /* batch_id */
1411     NULL,                     /* home_dir */
1412     NULL,                     /* current_dir */
1413     NULL,                     /* expand-multi-domain */
1414     TRUE,                     /* multi-domain */
1415     FALSE,                    /* overrides_hosts */
1416     100,                      /* max_addresses */
1417     500,                      /* connection_max_messages */
1418     FALSE,                    /* deliver_as_creator */
1419     FALSE,                    /* disable_logging */
1420     FALSE,                    /* initgroups */
1421     FALSE,                    /* uid_set */
1422     FALSE,                    /* gid_set */
1423     (uid_t)(-1),              /* uid */
1424     (gid_t)(-1),              /* gid */
1425     NULL,                     /* expand_uid */
1426     NULL,                     /* expand_gid */
1427     NULL,                     /* warn_message */
1428     NULL,                     /* shadow */
1429     NULL,                     /* shadow_condition */
1430     NULL,                     /* filter_command */
1431     NULL,                     /* add_headers */
1432     NULL,                     /* remove_headers */
1433     NULL,                     /* return_path */
1434     NULL,                     /* debug_string */
1435     NULL,                     /* max_parallel */
1436     NULL,                     /* message_size_limit */
1437     NULL,                     /* headers_rewrite */
1438     NULL,                     /* rewrite_rules */
1439     0,                        /* rewrite_existflags */
1440     300,                      /* filter_timeout */
1441     FALSE,                    /* body_only */
1442     FALSE,                    /* delivery_date_add */
1443     FALSE,                    /* envelope_to_add */
1444     FALSE,                    /* headers_only */
1445     FALSE,                    /* rcpt_include_affixes */
1446     FALSE,                    /* return_path_add */
1447     FALSE,                    /* return_output */
1448     FALSE,                    /* return_fail_output */
1449     FALSE,                    /* log_output */
1450     FALSE,                    /* log_fail_output */
1451     FALSE,                    /* log_defer_output */
1452     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1453                                  1 nor 0 so can detect unset */
1454 #ifndef DISABLE_EVENT
1455    ,NULL                      /* event_action */
1456 #endif
1457 };
1458
1459 int     transport_count;
1460 uschar *transport_name          = NULL;
1461 int     transport_newlines;
1462 const uschar **transport_filter_argv  = NULL;
1463 int     transport_filter_timeout;
1464 BOOL    transport_filter_timed_out = FALSE;
1465 int     transport_write_timeout= 0;
1466
1467 tree_node  *tree_dns_fails     = NULL;
1468 tree_node  *tree_duplicates    = NULL;
1469 tree_node  *tree_nonrecipients = NULL;
1470 tree_node  *tree_unusable      = NULL;
1471
1472 BOOL    trusted_caller         = FALSE;
1473 BOOL    trusted_config         = TRUE;
1474 gid_t  *trusted_groups         = NULL;
1475 uid_t  *trusted_users          = NULL;
1476 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1477
1478 uschar *unknown_login          = NULL;
1479 uschar *unknown_username       = NULL;
1480 uschar *untrusted_set_sender   = NULL;
1481
1482 /*  A regex for matching a "From_" line in an incoming message, in the form
1483
1484     From ph10 Fri Jan  5 12:35 GMT 1996
1485
1486 which  the "mail" commands send to the MTA (undocumented, of course), or in
1487 the  form
1488
1489     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1490
1491 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1492 Because  of variations in time formats, just match up to the minutes. That
1493 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1494 so  just require one digit for hours and minutes. The weekday is also absent
1495 in  some forms. */
1496
1497 uschar *uucp_from_pattern      = US
1498    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1499    "(?:"                                          /* Non-extracting bracket */
1500    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1501    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1502    ")"                                            /* End alternation */
1503    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1504
1505 uschar *uucp_from_sender       = US"$1";
1506
1507 uschar *verify_mode            = NULL;
1508 uschar *version_copyright      =
1509  US"Copyright (c) University of Cambridge, 1995 - 2016\n"
1510    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2016";
1511 uschar *version_date           = US"?";
1512 uschar *version_cnumber        = US"????";
1513 uschar *version_string         = US"?";
1514
1515 uschar *warn_message_file      = NULL;
1516 int     warning_count          = 0;
1517 uschar *warnmsg_delay          = NULL;
1518 uschar *warnmsg_recipients     = NULL;
1519 BOOL    write_rejectlog        = TRUE;
1520
1521
1522 /*  End of globals.c */