src/src/globals.c

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