src/src/globals.c

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