src/src/globals.c

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2017 */
   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 = nelem(optionlist_auths);
  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 BOOL    opt_perl_taintmode     = FALSE;
  53 #endif
  54
  55 #ifdef EXPAND_DLFUNC
  56 tree_node *dlobj_anchor        = NULL;
  57 #endif
  58
  59 #ifdef LOOKUP_IBASE
  60 uschar *ibase_servers          = NULL;
  61 #endif
  62
  63 #ifdef LOOKUP_LDAP
  64 uschar *eldap_ca_cert_dir      = NULL;
  65 uschar *eldap_ca_cert_file     = NULL;
  66 uschar *eldap_cert_file        = NULL;
  67 uschar *eldap_cert_key         = NULL;
  68 uschar *eldap_cipher_suite     = NULL;
  69 uschar *eldap_default_servers  = NULL;
  70 uschar *eldap_require_cert     = NULL;
  71 int     eldap_version          = -1;
  72 BOOL    eldap_start_tls        = FALSE;
  73 #endif
  74
  75 #ifdef LOOKUP_MYSQL
  76 uschar *mysql_servers          = NULL;
  77 #endif
  78
  79 #ifdef LOOKUP_ORACLE
  80 uschar *oracle_servers         = NULL;
  81 #endif
  82
  83 #ifdef LOOKUP_PGSQL
  84 uschar *pgsql_servers          = NULL;
  85 #endif
  86
  87 #ifdef LOOKUP_REDIS
  88 uschar *redis_servers          = NULL;
  89 #endif
  90
  91 #ifdef LOOKUP_SQLITE
  92 int     sqlite_lock_timeout    = 5;
  93 #endif
  94
  95 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  96 BOOL    move_frozen_messages   = FALSE;
  97 #endif
  98
  99 /* These variables are outside the #ifdef because it keeps the code less
 100 cluttered in several places (e.g. during logging) if we can always refer to
 101 them. Also, the tls_ variables are now always visible. */
 102
 103 tls_support tls_in = {
 104  -1,   /* tls_active */
 105  0,    /* tls_bits */
 106  FALSE,/* tls_certificate_verified */
 107 #ifdef EXPERIMENTAL_DANE
 108  FALSE,/* dane_verified */
 109  0,    /* tlsa_usage */
 110 #endif
 111  NULL, /* tls_cipher */
 112  FALSE,/* tls_on_connect */
 113  NULL, /* tls_on_connect_ports */
 114  NULL, /* tls_ourcert */
 115  NULL, /* tls_peercert */
 116  NULL, /* tls_peerdn */
 117  NULL, /* tls_sni */
 118  0     /* tls_ocsp */
 119 };
 120 tls_support tls_out = {
 121  -1,   /* tls_active */
 122  0,    /* tls_bits */
 123  FALSE,/* tls_certificate_verified */
 124 #ifdef EXPERIMENTAL_DANE
 125  FALSE,/* dane_verified */
 126  0,    /* tlsa_usage */
 127 #endif
 128  NULL, /* tls_cipher */
 129  FALSE,/* tls_on_connect */
 130  NULL, /* tls_on_connect_ports */
 131  NULL, /* tls_ourcert */
 132  NULL, /* tls_peercert */
 133  NULL, /* tls_peerdn */
 134  NULL, /* tls_sni */
 135  0     /* tls_ocsp */
 136 };
 137
 138 uschar *dsn_envid              = NULL;
 139 int     dsn_ret                = 0;
 140 const pcre  *regex_DSN         = NULL;
 141 uschar *dsn_advertise_hosts    = NULL;
 142
 143 #ifdef SUPPORT_TLS
 144 BOOL    gnutls_compat_mode     = FALSE;
 145 BOOL    gnutls_allow_auto_pkcs11 = FALSE;
 146 uschar *openssl_options        = NULL;
 147 const pcre *regex_STARTTLS     = NULL;
 148 uschar *tls_advertise_hosts    = US"*";
 149 uschar *tls_certificate        = NULL;
 150 uschar *tls_crl                = NULL;
 151 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
 152 that's the interop problem which has been observed: GnuTLS suggesting a higher
 153 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
 154 int     tls_dh_max_bits        = 2236;
 155 uschar *tls_dhparam            = NULL;
 156 uschar *tls_eccurve            = US"auto";
 157 # ifndef DISABLE_OCSP
 158 uschar *tls_ocsp_file          = NULL;
 159 # endif
 160 uschar *tls_privatekey         = NULL;
 161 BOOL    tls_remember_esmtp     = FALSE;
 162 uschar *tls_require_ciphers    = NULL;
 163 uschar *tls_try_verify_hosts   = NULL;
 164 uschar *tls_verify_certificates= US"system";
 165 uschar *tls_verify_hosts       = NULL;
 166 #else   /*!SUPPORT_TLS*/
 167 uschar *tls_advertise_hosts    = NULL;
 168 #endif
 169
 170 #ifndef DISABLE_PRDR
 171 /* Per Recipient Data Response variables */
 172 BOOL    prdr_enable            = FALSE;
 173 BOOL    prdr_requested         = FALSE;
 174 const pcre *regex_PRDR         = NULL;
 175 #endif
 176
 177 #ifdef SUPPORT_I18N
 178 const pcre *regex_UTF8         = NULL;
 179 #endif
 180
 181 /* Input-reading functions for messages, so we can use special ones for
 182 incoming TCP/IP. The defaults use stdin. We never need these for any
 183 stand-alone tests. */
 184
 185 #ifndef STAND_ALONE
 186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 187 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 188 int (*receive_getc)(unsigned)  = stdin_getc;
 189 void (*receive_get_cache)(void)= NULL;
 190 int (*receive_ungetc)(int)     = stdin_ungetc;
 191 int (*receive_feof)(void)      = stdin_feof;
 192 int (*receive_ferror)(void)    = stdin_ferror;
 193 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 194 #endif
 195
 196
 197 /* List of per-address expansion variables for clearing and saving/restoring
 198 when verifying one address while routing/verifying another. We have to have
 199 the size explicit, because it is referenced from more than one module. */
 200
 201 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 202   CUSS &deliver_address_data,
 203   CUSS &deliver_domain,
 204   CUSS &deliver_domain_data,
 205   CUSS &deliver_domain_orig,
 206   CUSS &deliver_domain_parent,
 207   CUSS &deliver_localpart,
 208   CUSS &deliver_localpart_data,
 209   CUSS &deliver_localpart_orig,
 210   CUSS &deliver_localpart_parent,
 211   CUSS &deliver_localpart_prefix,
 212   CUSS &deliver_localpart_suffix,
 213   CUSS (uschar **)(&deliver_recipients),
 214   CUSS &deliver_host,
 215   CUSS &deliver_home,
 216   CUSS &address_file,
 217   CUSS &address_pipe,
 218   CUSS &self_hostname,
 219   NULL };
 220
 221 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 222
 223 /* General global variables */
 224
 225 header_line *acl_added_headers = NULL;
 226 tree_node *acl_anchor          = NULL;
 227 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 228                                   NULL, NULL, NULL, NULL};
 229 int     acl_narg               = 0;
 230
 231 int     acl_level              = 0;
 232
 233 uschar *acl_not_smtp           = NULL;
 234 #ifdef WITH_CONTENT_SCAN
 235 uschar *acl_not_smtp_mime      = NULL;
 236 #endif
 237 uschar *acl_not_smtp_start     = NULL;
 238 uschar *acl_removed_headers    = NULL;
 239 uschar *acl_smtp_auth          = NULL;
 240 uschar *acl_smtp_connect       = NULL;
 241 uschar *acl_smtp_data          = NULL;
 242 #ifndef DISABLE_PRDR
 243 uschar *acl_smtp_data_prdr     = US"accept";
 244 #endif
 245 #ifndef DISABLE_DKIM
 246 uschar *acl_smtp_dkim          = NULL;
 247 #endif
 248 uschar *acl_smtp_etrn          = NULL;
 249 uschar *acl_smtp_expn          = NULL;
 250 uschar *acl_smtp_helo          = NULL;
 251 uschar *acl_smtp_mail          = NULL;
 252 uschar *acl_smtp_mailauth      = NULL;
 253 #ifdef WITH_CONTENT_SCAN
 254 uschar *acl_smtp_mime          = NULL;
 255 #endif
 256 uschar *acl_smtp_notquit       = NULL;
 257 uschar *acl_smtp_predata       = NULL;
 258 uschar *acl_smtp_quit          = NULL;
 259 uschar *acl_smtp_rcpt          = NULL;
 260 uschar *acl_smtp_starttls      = NULL;
 261 uschar *acl_smtp_vrfy          = NULL;
 262
 263 BOOL    acl_temp_details       = FALSE;
 264 tree_node *acl_var_c           = NULL;
 265 tree_node *acl_var_m           = NULL;
 266 uschar *acl_verify_message     = NULL;
 267 string_item *acl_warn_logged   = NULL;
 268
 269 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 270 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 271
 272 uschar *acl_wherenames[]       = { US"RCPT",
 273                                    US"MAIL",
 274                                    US"PREDATA",
 275                                    US"MIME",
 276                                    US"DKIM",
 277                                    US"DATA",
 278 #ifndef DISABLE_PRDR
 279                                    US"PRDR",
 280 #endif
 281                                    US"non-SMTP",
 282                                    US"AUTH",
 283                                    US"connection",
 284                                    US"ETRN",
 285                                    US"EXPN",
 286                                    US"EHLO or HELO",
 287                                    US"MAILAUTH",
 288                                    US"non-SMTP-start",
 289                                    US"NOTQUIT",
 290                                    US"QUIT",
 291                                    US"STARTTLS",
 292                                    US"VRFY",
 293                                    US"delivery",
 294                                    US"unknown"
 295                                  };
 296
 297 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 298                                    US"550",     /* MAIL */
 299                                    US"550",     /* PREDATA */
 300                                    US"550",     /* MIME */
 301                                    US"550",     /* DKIM */
 302                                    US"550",     /* DATA */
 303 #ifndef DISABLE_PRDR
 304                                    US"550",    /* RCPT PRDR */
 305 #endif
 306                                    US"0",       /* not SMTP; not relevant */
 307                                    US"503",     /* AUTH */
 308                                    US"550",     /* connect */
 309                                    US"458",     /* ETRN */
 310                                    US"550",     /* EXPN */
 311                                    US"550",     /* HELO/EHLO */
 312                                    US"0",       /* MAILAUTH; not relevant */
 313                                    US"0",       /* not SMTP; not relevant */
 314                                    US"0",       /* NOTQUIT; not relevant */
 315                                    US"0",       /* QUIT; not relevant */
 316                                    US"550",     /* STARTTLS */
 317                                    US"252",     /* VRFY */
 318                                    US"0",       /* delivery; not relevant */
 319                                    US"0"        /* unknown; not relevant */
 320                                  };
 321
 322 BOOL    active_local_from_check = FALSE;
 323 BOOL    active_local_sender_retain = FALSE;
 324 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 325 uschar *add_environment        = NULL;
 326 address_item  *addr_duplicate  = NULL;
 327
 328 address_item address_defaults = {
 329   NULL,                 /* next */
 330   NULL,                 /* parent */
 331   NULL,                 /* first */
 332   NULL,                 /* dupof */
 333   NULL,                 /* start_router */
 334   NULL,                 /* router */
 335   NULL,                 /* transport */
 336   NULL,                 /* host_list */
 337   NULL,                 /* host_used */
 338   NULL,                 /* fallback_hosts */
 339   NULL,                 /* reply */
 340   NULL,                 /* retries */
 341   NULL,                 /* address */
 342   NULL,                 /* unique */
 343   NULL,                 /* cc_local_part */
 344   NULL,                 /* lc_local_part */
 345   NULL,                 /* local_part */
 346   NULL,                 /* prefix */
 347   NULL,                 /* suffix */
 348   NULL,                 /* domain */
 349   NULL,                 /* address_retry_key */
 350   NULL,                 /* domain_retry_key */
 351   NULL,                 /* current_dir */
 352   NULL,                 /* home_dir */
 353   NULL,                 /* message */
 354   NULL,                 /* user_message */
 355   NULL,                 /* onetime_parent */
 356   NULL,                 /* pipe_expandn */
 357   NULL,                 /* return_filename */
 358   NULL,                 /* self_hostname */
 359   NULL,                 /* shadow_message */
 360 #ifdef SUPPORT_TLS
 361   NULL,                 /* cipher */
 362   NULL,                 /* ourcert */
 363   NULL,                 /* peercert */
 364   NULL,                 /* peerdn */
 365   OCSP_NOT_REQ,         /* ocsp */
 366 #endif
 367 #ifdef EXPERIMENTAL_DSN_INFO
 368   NULL,                 /* smtp_greeting */
 369   NULL,                 /* helo_response */
 370 #endif
 371   NULL,                 /* authenticator */
 372   NULL,                 /* auth_id */
 373   NULL,                 /* auth_sndr */
 374   NULL,                 /* dsn_orcpt */
 375   0,                    /* dsn_flags */
 376   0,                    /* dsn_aware */
 377   (uid_t)(-1),          /* uid */
 378   (gid_t)(-1),          /* gid */
 379   0,                    /* flags */
 380   { 0 },                /* domain_cache - any larger array should be zeroed */
 381   { 0 },                /* localpart_cache - ditto */
 382   -1,                   /* mode */
 383   0,                    /* more_errno */
 384   ERRNO_UNKNOWNERROR,   /* basic_errno */
 385   0,                    /* child_count */
 386   -1,                   /* return_file */
 387   SPECIAL_NONE,         /* special_action */
 388   DEFER,                /* transport_return */
 389   {                     /* fields that are propagated to children */
 390     NULL,               /* address_data */
 391     NULL,               /* domain_data */
 392     NULL,               /* localpart_data */
 393     NULL,               /* errors_address */
 394     NULL,               /* extra_headers */
 395     NULL,               /* remove_headers */
 396 #ifdef EXPERIMENTAL_SRS
 397     NULL,               /* srs_sender */
 398 #endif
 399 #ifdef SUPPORT_I18N
 400     FALSE,              /* utf8 */
 401 #endif
 402   }
 403 };
 404
 405 uschar *address_file           = NULL;
 406 uschar *address_pipe           = NULL;
 407 BOOL    address_test_mode      = FALSE;
 408 tree_node *addresslist_anchor  = NULL;
 409 int     addresslist_count      = 0;
 410 gid_t  *admin_groups           = NULL;
 411 BOOL    admin_user             = FALSE;
 412 BOOL    allow_auth_unadvertised= FALSE;
 413 BOOL    allow_domain_literals  = FALSE;
 414 BOOL    allow_mx_to_ip         = FALSE;
 415 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 416 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 417 BOOL    allow_utf8_domains     = FALSE;
 418 uschar *authenticated_fail_id  = NULL;
 419 uschar *authenticated_id       = NULL;
 420 uschar *authenticated_sender   = NULL;
 421 BOOL    authentication_failed  = FALSE;
 422 auth_instance  *auths          = NULL;
 423 uschar *auth_advertise_hosts   = US"*";
 424 auth_instance auth_defaults    = {
 425     NULL,                      /* chain pointer */
 426     NULL,                      /* name */
 427     NULL,                      /* info */
 428     NULL,                      /* private options block pointer */
 429     NULL,                      /* driver_name */
 430     NULL,                      /* advertise_condition */
 431     NULL,                      /* client_condition */
 432     NULL,                      /* public_name */
 433     NULL,                      /* set_id */
 434     NULL,                      /* set_client_id */
 435     NULL,                      /* server_mail_auth_condition */
 436     NULL,                      /* server_debug_string */
 437     NULL,                      /* server_condition */
 438     FALSE,                     /* client */
 439     FALSE,                     /* server */
 440     FALSE                      /* advertised */
 441 };
 442
 443 uschar *auth_defer_msg         = US"reason not recorded";
 444 uschar *auth_defer_user_msg    = US"";
 445 uschar *auth_vars[AUTH_VARS];
 446 int     auto_thaw              = 0;
 447 #ifdef WITH_CONTENT_SCAN
 448 BOOL    av_failed              = FALSE;
 449 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 450 #endif
 451
 452 BOOL    background_daemon      = TRUE;
 453
 454 #if BASE_62 == 62
 455 uschar *base62_chars=
 456     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 457 #else
 458 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 459 #endif
 460
 461 uschar *bi_command             = NULL;
 462 uschar *big_buffer             = NULL;
 463 int     big_buffer_size        = BIG_BUFFER_SIZE;
 464 #ifdef EXPERIMENTAL_BRIGHTMAIL
 465 uschar *bmi_alt_location       = NULL;
 466 uschar *bmi_base64_tracker_verdict = NULL;
 467 uschar *bmi_base64_verdict     = NULL;
 468 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 469 int     bmi_deliver            = 1;
 470 int     bmi_run                = 0;
 471 uschar *bmi_verdicts           = NULL;
 472 #endif
 473 int     body_8bitmime          = 0;
 474 int     body_linecount         = 0;
 475 int     body_zerocount         = 0;
 476 uschar *bounce_message_file    = NULL;
 477 uschar *bounce_message_text    = NULL;
 478 uschar *bounce_recipient       = NULL;
 479 BOOL    bounce_return_body     = TRUE;
 480 int     bounce_return_linesize_limit = 998;
 481 BOOL    bounce_return_message  = TRUE;
 482 int     bounce_return_size_limit = 100*1024;
 483 uschar *bounce_sender_authentication = NULL;
 484 int     bsmtp_transaction_linecount = 0;
 485
 486 uschar *callout_address        = NULL;
 487 int     callout_cache_domain_positive_expire = 7*24*60*60;
 488 int     callout_cache_domain_negative_expire = 3*60*60;
 489 int     callout_cache_positive_expire = 24*60*60;
 490 int     callout_cache_negative_expire = 2*60*60;
 491 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 492 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 493 int     check_log_inodes       = 100;
 494 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 495 BOOL    check_rfc2047_length   = TRUE;
 496 int     check_spool_inodes     = 100;
 497 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 498
 499 uschar *chunking_advertise_hosts = US"*";
 500 unsigned chunking_datasize     = 0;
 501 unsigned chunking_data_left    = 0;
 502 BOOL    chunking_offered       = FALSE;
 503 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 504 const pcre *regex_CHUNKING     = NULL;
 505
 506 uschar *client_authenticator   = NULL;
 507 uschar *client_authenticated_id = NULL;
 508 uschar *client_authenticated_sender = NULL;
 509 int     clmacro_count          = 0;
 510 uschar *clmacros[MAX_CLMACROS];
 511 BOOL    config_changed         = FALSE;
 512 FILE   *config_file            = NULL;
 513 const uschar *config_filename  = NULL;
 514 int     config_lineno          = 0;
 515 #ifdef CONFIGURE_GROUP
 516 gid_t   config_gid             = CONFIGURE_GROUP;
 517 #else
 518 gid_t   config_gid             = 0;
 519 #endif
 520 uschar *config_main_filelist   = US CONFIGURE_FILE
 521                          "\0<-----------Space to patch configure_filename->";
 522 uschar *config_main_filename   = NULL;
 523 uschar *config_main_directory  = NULL;
 524
 525 #ifdef CONFIGURE_OWNER
 526 uid_t   config_uid             = CONFIGURE_OWNER;
 527 #else
 528 uid_t   config_uid             = 0;
 529 #endif
 530
 531 int     connection_max_messages= -1;
 532 uschar *continue_proxy_cipher  = NULL;
 533 uschar *continue_hostname      = NULL;
 534 uschar *continue_host_address  = NULL;
 535 BOOL    continue_more          = FALSE;
 536 int     continue_sequence      = 1;
 537 uschar *continue_transport     = NULL;
 538
 539 uschar *csa_status             = NULL;
 540 cut_t   cutthrough = {
 541   FALSE,                                /* verify-only: normal delivery */
 542   FALSE,                                /* delivery: when to attempt */
 543   FALSE,                                /* on defer: spool locally */
 544   FALSE,                                /* not a TLS conn yet */
 545   -1,                                   /* fd: open connection */
 546   0,                                    /* nrcpt: number of addresses */
 547 };
 548
 549 BOOL    daemon_listen          = FALSE;
 550 uschar *daemon_smtp_port       = US"smtp";
 551 int     daemon_startup_retries = 9;
 552 int     daemon_startup_sleep   = 30;
 553
 554 #ifdef EXPERIMENTAL_DCC
 555 BOOL    dcc_direct_add_header  = FALSE;
 556 uschar *dcc_header             = NULL;
 557 uschar *dcc_result             = NULL;
 558 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 559 uschar *dccifd_options         = US"header";
 560 #endif
 561
 562 BOOL    debug_daemon           = FALSE;
 563 int     debug_fd               = -1;
 564 FILE   *debug_file             = NULL;
 565 int     debug_notall[]         = {
 566   Di_memory,
 567   -1
 568 };
 569 bit_table debug_options[]      = { /* must be in alphabetical order */
 570   BIT_TABLE(D, acl),
 571   BIT_TABLE(D, all),
 572   BIT_TABLE(D, auth),
 573   BIT_TABLE(D, deliver),
 574   BIT_TABLE(D, dns),
 575   BIT_TABLE(D, dnsbl),
 576   BIT_TABLE(D, exec),
 577   BIT_TABLE(D, expand),
 578   BIT_TABLE(D, filter),
 579   BIT_TABLE(D, hints_lookup),
 580   BIT_TABLE(D, host_lookup),
 581   BIT_TABLE(D, ident),
 582   BIT_TABLE(D, interface),
 583   BIT_TABLE(D, lists),
 584   BIT_TABLE(D, load),
 585   BIT_TABLE(D, local_scan),
 586   BIT_TABLE(D, lookup),
 587   BIT_TABLE(D, memory),
 588   BIT_TABLE(D, pid),
 589   BIT_TABLE(D, process_info),
 590   BIT_TABLE(D, queue_run),
 591   BIT_TABLE(D, receive),
 592   BIT_TABLE(D, resolver),
 593   BIT_TABLE(D, retry),
 594   BIT_TABLE(D, rewrite),
 595   BIT_TABLE(D, route),
 596   BIT_TABLE(D, timestamp),
 597   BIT_TABLE(D, tls),
 598   BIT_TABLE(D, transport),
 599   BIT_TABLE(D, uid),
 600   BIT_TABLE(D, verify),
 601 };
 602 int     debug_options_count    = nelem(debug_options);
 603
 604 unsigned int debug_selector    = 0;
 605 BOOL    debug_store            = FALSE;
 606 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 607 uschar *delay_warning_condition=
 608   US"${if or {"
 609             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 610             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 611             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 612             "} {no}{yes}}";
 613 BOOL    delivery_date_remove   = TRUE;
 614 uschar *deliver_address_data   = NULL;
 615 int     deliver_datafile       = -1;
 616 const uschar *deliver_domain   = NULL;
 617 uschar *deliver_domain_data    = NULL;
 618 const uschar *deliver_domain_orig = NULL;
 619 const uschar *deliver_domain_parent = NULL;
 620 BOOL    deliver_drop_privilege = FALSE;
 621 BOOL    deliver_firsttime      = FALSE;
 622 BOOL    deliver_force          = FALSE;
 623 BOOL    deliver_freeze         = FALSE;
 624 time_t  deliver_frozen_at      = 0;
 625 uschar *deliver_home           = NULL;
 626 const uschar *deliver_host     = NULL;
 627 const uschar *deliver_host_address = NULL;
 628 int     deliver_host_port      = 0;
 629 uschar *deliver_in_buffer      = NULL;
 630 ino_t   deliver_inode          = 0;
 631 uschar *deliver_localpart      = NULL;
 632 uschar *deliver_localpart_data = NULL;
 633 uschar *deliver_localpart_orig = NULL;
 634 uschar *deliver_localpart_parent = NULL;
 635 uschar *deliver_localpart_prefix = NULL;
 636 uschar *deliver_localpart_suffix = NULL;
 637 BOOL    deliver_force_thaw     = FALSE;
 638 BOOL    deliver_manual_thaw    = FALSE;
 639 uschar *deliver_out_buffer     = NULL;
 640 int     deliver_queue_load_max = -1;
 641 address_item  *deliver_recipients = NULL;
 642 uschar *deliver_selectstring   = NULL;
 643 BOOL    deliver_selectstring_regex = FALSE;
 644 uschar *deliver_selectstring_sender = NULL;
 645 BOOL    deliver_selectstring_sender_regex = FALSE;
 646 BOOL    disable_callout_flush  = FALSE;
 647 BOOL    disable_delay_flush    = FALSE;
 648 #ifdef ENABLE_DISABLE_FSYNC
 649 BOOL    disable_fsync          = FALSE;
 650 #endif
 651 BOOL    disable_ipv6           = FALSE;
 652 BOOL    disable_logging        = FALSE;
 653
 654 #ifndef DISABLE_DKIM
 655 BOOL    dkim_collect_input       = FALSE;
 656 uschar *dkim_cur_signer          = NULL;
 657 BOOL    dkim_disable_verify      = FALSE;
 658 int     dkim_key_length          = 0;
 659 uschar *dkim_signers             = NULL;
 660 uschar *dkim_signing_domain      = NULL;
 661 uschar *dkim_signing_selector    = NULL;
 662 uschar *dkim_verify_signers      = US"$dkim_signers";
 663 #endif
 664 #ifdef EXPERIMENTAL_DMARC
 665 BOOL    dmarc_has_been_checked  = FALSE;
 666 uschar *dmarc_ar_header         = NULL;
 667 uschar *dmarc_domain_policy     = NULL;
 668 uschar *dmarc_forensic_sender   = NULL;
 669 uschar *dmarc_history_file      = NULL;
 670 uschar *dmarc_status            = NULL;
 671 uschar *dmarc_status_text       = NULL;
 672 uschar *dmarc_tld_file          = NULL;
 673 uschar *dmarc_used_domain       = NULL;
 674 BOOL    dmarc_disable_verify    = FALSE;
 675 BOOL    dmarc_enable_forensic   = FALSE;
 676 #endif
 677
 678 uschar *dns_again_means_nonexist = NULL;
 679 int     dns_csa_search_limit   = 5;
 680 BOOL    dns_csa_use_reverse    = TRUE;
 681 #ifdef EXPERIMENTAL_DANE
 682 int     dns_dane_ok            = -1;
 683 #endif
 684 uschar *dns_ipv4_lookup        = NULL;
 685 int     dns_retrans            = 0;
 686 int     dns_retry              = 0;
 687 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 688 uschar *dns_trust_aa           = NULL;
 689 int     dns_use_edns0          = -1; /* <0 = not coerced */
 690 uschar *dnslist_domain         = NULL;
 691 uschar *dnslist_matched        = NULL;
 692 uschar *dnslist_text           = NULL;
 693 uschar *dnslist_value          = NULL;
 694 tree_node *domainlist_anchor   = NULL;
 695 int     domainlist_count       = 0;
 696 BOOL    dont_deliver           = FALSE;
 697 BOOL    dot_ends               = TRUE;
 698 BOOL    drop_cr                = FALSE;         /* No longer used */
 699 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 700
 701 BOOL    enable_dollar_recipients = FALSE;
 702 BOOL    envelope_to_remove     = TRUE;
 703 int     errno_quota            = ERRNO_QUOTA;
 704 uschar *errors_copy            = NULL;
 705 int     error_handling         = ERRORS_SENDER;
 706 uschar *errors_reply_to        = NULL;
 707 int     errors_sender_rc       = EXIT_FAILURE;
 708 #ifndef DISABLE_EVENT
 709 uschar *event_action             = NULL;        /* expansion for delivery events */
 710 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 711 int     event_defer_errno        = 0;
 712 const uschar *event_name         = NULL;        /* event name variable */
 713 #endif
 714
 715
 716 gid_t   exim_gid               = EXIM_GID;
 717 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 718 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 719                         "\0<---------------Space to patch exim_path->";
 720 uid_t   exim_uid               = EXIM_UID;
 721 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 722 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 723 int     expand_forbid          = 0;
 724 int     expand_nlength[EXPAND_MAXN+1];
 725 int     expand_nmax            = -1;
 726 uschar *expand_nstring[EXPAND_MAXN+1];
 727 BOOL    expand_string_forcedfail = FALSE;
 728 uschar *expand_string_message;
 729 BOOL    extract_addresses_remove_arguments = TRUE;
 730 uschar *extra_local_interfaces = NULL;
 731
 732 int     fake_response          = OK;
 733 uschar *fake_response_text     = US"Your message has been rejected but is "
 734                                    "being kept for evaluation.\nIf it was a "
 735                                    "legitimate message, it may still be "
 736                                    "delivered to the target recipient(s).";
 737 int     filter_n[FILTER_VARIABLE_COUNT];
 738 BOOL    filter_running         = FALSE;
 739 int     filter_sn[FILTER_VARIABLE_COUNT];
 740 int     filter_test            = FTEST_NONE;
 741 uschar *filter_test_sfile      = NULL;
 742 uschar *filter_test_ufile      = NULL;
 743 uschar *filter_thisaddress     = NULL;
 744 int     finduser_retries       = 0;
 745 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 746 uschar *freeze_tell            = NULL;
 747 uschar *freeze_tell_config     = NULL;
 748 uschar *fudged_queue_times     = US"";
 749
 750 uschar *gecos_name             = NULL;
 751 uschar *gecos_pattern          = NULL;
 752 rewrite_rule  *global_rewrite_rules = NULL;
 753
 754 uschar *headers_charset        = US HEADERS_CHARSET;
 755 int     header_insert_maxlen   = 64 * 1024;
 756 header_line  *header_last      = NULL;
 757 header_line  *header_list      = NULL;
 758 int     header_maxsize         = HEADER_MAXSIZE;
 759 int     header_line_maxsize    = 0;
 760
 761 header_name header_names[] = {
 762   { US"bcc",            3, TRUE,  htype_bcc },
 763   { US"cc",             2, TRUE,  htype_cc },
 764   { US"date",           4, TRUE,  htype_date },
 765   { US"delivery-date", 13, FALSE, htype_delivery_date },
 766   { US"envelope-to",   11, FALSE, htype_envelope_to },
 767   { US"from",           4, TRUE,  htype_from },
 768   { US"message-id",    10, TRUE,  htype_id },
 769   { US"received",       8, FALSE, htype_received },
 770   { US"reply-to",       8, FALSE, htype_reply_to },
 771   { US"return-path",   11, FALSE, htype_return_path },
 772   { US"sender",         6, TRUE,  htype_sender },
 773   { US"subject",        7, FALSE, htype_subject },
 774   { US"to",             2, TRUE,  htype_to }
 775 };
 776
 777 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 778
 779 BOOL    header_rewritten       = FALSE;
 780 uschar *helo_accept_junk_hosts = NULL;
 781 uschar *helo_allow_chars       = US"";
 782 uschar *helo_lookup_domains    = US"@ : @[]";
 783 uschar *helo_try_verify_hosts  = NULL;
 784 BOOL    helo_verified          = FALSE;
 785 BOOL    helo_verify_failed     = FALSE;
 786 uschar *helo_verify_hosts      = NULL;
 787 const uschar *hex_digits       = CUS"0123456789abcdef";
 788 uschar *hold_domains           = NULL;
 789 BOOL    host_checking          = FALSE;
 790 BOOL    host_checking_callout  = FALSE;
 791 uschar *host_data              = NULL;
 792 BOOL    host_find_failed_syntax= FALSE;
 793 uschar *host_lookup            = NULL;
 794 BOOL    host_lookup_deferred   = FALSE;
 795 BOOL    host_lookup_failed     = FALSE;
 796 uschar *host_lookup_order      = US"bydns:byaddr";
 797 uschar *host_lookup_msg        = US"";
 798 int     host_number            = 0;
 799 uschar *host_number_string     = NULL;
 800 uschar *host_reject_connection = NULL;
 801 tree_node *hostlist_anchor     = NULL;
 802 int     hostlist_count         = 0;
 803 uschar *hosts_treat_as_local   = NULL;
 804 uschar *hosts_connection_nolog = NULL;
 805
 806 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 807 BOOL    ignore_fromline_local  = FALSE;
 808 uschar *ignore_fromline_hosts  = NULL;
 809 BOOL    inetd_wait_mode        = FALSE;
 810 int     inetd_wait_timeout     = -1;
 811 uschar *initial_cwd            = NULL;
 812 uschar *interface_address      = NULL;
 813 int     interface_port         = -1;
 814 BOOL    is_inetd               = FALSE;
 815 uschar *iterate_item           = NULL;
 816
 817 int     journal_fd             = -1;
 818
 819 uschar *keep_environment       = NULL;
 820
 821 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 822
 823 uschar *eldap_dn               = NULL;
 824 int     load_average           = -2;
 825 BOOL    local_error_message    = FALSE;
 826 BOOL    local_from_check       = TRUE;
 827 uschar *local_from_prefix      = NULL;
 828 uschar *local_from_suffix      = NULL;
 829
 830 #if HAVE_IPV6
 831 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 832 #else
 833 uschar *local_interfaces       = US"0.0.0.0";
 834 #endif
 835
 836 uschar *local_scan_data        = NULL;
 837 int     local_scan_timeout     = 5*60;
 838 BOOL    local_sender_retain    = FALSE;
 839 gid_t   local_user_gid         = (gid_t)(-1);
 840 uid_t   local_user_uid         = (uid_t)(-1);
 841
 842 tree_node *localpartlist_anchor= NULL;
 843 int     localpartlist_count    = 0;
 844 uschar *log_buffer             = NULL;
 845
 846 int     log_default[]          = { /* for initializing log_selector */
 847   Li_acl_warn_skipped,
 848   Li_connection_reject,
 849   Li_delay_delivery,
 850   Li_dnslist_defer,
 851   Li_etrn,
 852   Li_host_lookup_failed,
 853   Li_lost_incoming_connection,
 854   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 855   Li_queue_run,
 856   Li_rejected_header,
 857   Li_retry_defer,
 858   Li_sender_verify_fail,
 859   Li_size_reject,
 860   Li_skip_delivery,
 861   Li_smtp_confirmation,
 862   Li_tls_certificate_verified,
 863   Li_tls_cipher,
 864   -1
 865 };
 866
 867 uschar *log_file_path          = US LOG_FILE_PATH
 868                            "\0<--------------Space to patch log_file_path->";
 869
 870 int     log_notall[]           = {
 871   -1
 872 };
 873 bit_table log_options[]        = { /* must be in alphabetical order */
 874   BIT_TABLE(L, 8bitmime),
 875   BIT_TABLE(L, acl_warn_skipped),
 876   BIT_TABLE(L, address_rewrite),
 877   BIT_TABLE(L, all),
 878   BIT_TABLE(L, all_parents),
 879   BIT_TABLE(L, arguments),
 880   BIT_TABLE(L, connection_reject),
 881   BIT_TABLE(L, delay_delivery),
 882   BIT_TABLE(L, deliver_time),
 883   BIT_TABLE(L, delivery_size),
 884   BIT_TABLE(L, dnslist_defer),
 885   BIT_TABLE(L, dnssec),
 886   BIT_TABLE(L, etrn),
 887   BIT_TABLE(L, host_lookup_failed),
 888   BIT_TABLE(L, ident_timeout),
 889   BIT_TABLE(L, incoming_interface),
 890   BIT_TABLE(L, incoming_port),
 891   BIT_TABLE(L, lost_incoming_connection),
 892   BIT_TABLE(L, outgoing_interface),
 893   BIT_TABLE(L, outgoing_port),
 894   BIT_TABLE(L, pid),
 895 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 896   BIT_TABLE(L, proxy),
 897 #endif
 898   BIT_TABLE(L, queue_run),
 899   BIT_TABLE(L, queue_time),
 900   BIT_TABLE(L, queue_time_overall),
 901   BIT_TABLE(L, received_recipients),
 902   BIT_TABLE(L, received_sender),
 903   BIT_TABLE(L, rejected_header),
 904   { US"rejected_headers", Li_rejected_header },
 905   BIT_TABLE(L, retry_defer),
 906   BIT_TABLE(L, return_path_on_delivery),
 907   BIT_TABLE(L, sender_on_delivery),
 908   BIT_TABLE(L, sender_verify_fail),
 909   BIT_TABLE(L, size_reject),
 910   BIT_TABLE(L, skip_delivery),
 911   BIT_TABLE(L, smtp_confirmation),
 912   BIT_TABLE(L, smtp_connection),
 913   BIT_TABLE(L, smtp_incomplete_transaction),
 914   BIT_TABLE(L, smtp_mailauth),
 915   BIT_TABLE(L, smtp_no_mail),
 916   BIT_TABLE(L, smtp_protocol_error),
 917   BIT_TABLE(L, smtp_syntax_error),
 918   BIT_TABLE(L, subject),
 919   BIT_TABLE(L, tls_certificate_verified),
 920   BIT_TABLE(L, tls_cipher),
 921   BIT_TABLE(L, tls_peerdn),
 922   BIT_TABLE(L, tls_sni),
 923   BIT_TABLE(L, unknown_in_list),
 924 };
 925 int     log_options_count      = nelem(log_options);
 926
 927 int     log_reject_target      = 0;
 928 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 929 uschar *log_selector_string    = NULL;
 930 FILE   *log_stderr             = NULL;
 931 BOOL    log_testing_mode       = FALSE;
 932 BOOL    log_timezone           = FALSE;
 933 uschar *login_sender_address   = NULL;
 934 uschar *lookup_dnssec_authenticated = NULL;
 935 int     lookup_open_max        = 25;
 936 uschar *lookup_value           = NULL;
 937
 938 macro_item  *macros            = NULL;
 939 macro_item  *mlast             = NULL;
 940 BOOL    macros_builtin_created = FALSE;
 941 uschar *mailstore_basename     = NULL;
 942 #ifdef WITH_CONTENT_SCAN
 943 uschar *malware_name           = NULL;  /* Virus Name */
 944 #endif
 945 int     max_received_linelength= 0;
 946 int     max_username_length    = 0;
 947 int     message_age            = 0;
 948 uschar *message_body           = NULL;
 949 uschar *message_body_end       = NULL;
 950 BOOL    message_body_newlines  = FALSE;
 951 int     message_body_size      = 0;
 952 int     message_body_visible   = 500;
 953 int     message_ended          = END_NOTSTARTED;
 954 uschar *message_headers        = NULL;
 955 uschar *message_id;
 956 uschar *message_id_domain      = NULL;
 957 uschar *message_id_text        = NULL;
 958 struct timeval message_id_tv   = { 0, 0 };
 959 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 960 uschar *message_id_external;
 961 int     message_linecount      = 0;
 962 BOOL    message_logs           = TRUE;
 963 int     message_size           = 0;
 964 uschar *message_size_limit     = US"50M";
 965 #ifdef SUPPORT_I18N
 966 BOOL    message_smtputf8       = FALSE;
 967 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 968 #endif
 969 uschar  message_subdir[2]      = { 0, 0 };
 970 uschar *message_reference      = NULL;
 971
 972 /* MIME ACL expandables */
 973 #ifdef WITH_CONTENT_SCAN
 974 int     mime_anomaly_level     = 0;
 975 const uschar *mime_anomaly_text      = NULL;
 976 uschar *mime_boundary          = NULL;
 977 uschar *mime_charset           = NULL;
 978 uschar *mime_content_description = NULL;
 979 uschar *mime_content_disposition = NULL;
 980 uschar *mime_content_id        = NULL;
 981 unsigned int mime_content_size = 0;
 982 uschar *mime_content_transfer_encoding = NULL;
 983 uschar *mime_content_type      = NULL;
 984 uschar *mime_decoded_filename  = NULL;
 985 uschar *mime_filename          = NULL;
 986 int     mime_is_multipart      = 0;
 987 int     mime_is_coverletter    = 0;
 988 int     mime_is_rfc822         = 0;
 989 int     mime_part_count        = -1;
 990 #endif
 991
 992 BOOL    mua_wrapper            = FALSE;
 993
 994 uid_t  *never_users            = NULL;
 995 #ifdef WITH_CONTENT_SCAN
 996 BOOL    no_mbox_unspool        = FALSE;
 997 #endif
 998 BOOL    no_multiline_responses = FALSE;
 999
1000 const int on                   = 1;     /* for setsockopt */
1001 const int off                  = 0;
1002
1003 uid_t   original_euid;
1004 gid_t   originator_gid;
1005 uschar *originator_login       = NULL;
1006 uschar *originator_name        = NULL;
1007 uid_t   originator_uid;
1008 uschar *override_local_interfaces = NULL;
1009 uschar *override_pid_file_path = NULL;
1010
1011 BOOL    parse_allow_group      = FALSE;
1012 BOOL    parse_found_group      = FALSE;
1013 uschar *percent_hack_domains   = NULL;
1014 uschar *pid_file_path          = US PID_FILE_PATH
1015                            "\0<--------------Space to patch pid_file_path->";
1016 BOOL    pipelining_enable      = TRUE;
1017 uschar *pipelining_advertise_hosts = US"*";
1018 BOOL    preserve_message_logs  = FALSE;
1019 uschar *primary_hostname       = NULL;
1020 BOOL    print_topbitchars      = FALSE;
1021 uschar  process_info[PROCESS_INFO_SIZE];
1022 int     process_info_len       = 0;
1023 uschar *process_log_path       = NULL;
1024 BOOL    prod_requires_admin    = TRUE;
1025
1026 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1027 uschar *hosts_proxy            = US"";
1028 uschar *proxy_external_address = US"";
1029 int     proxy_external_port    = 0;
1030 uschar *proxy_local_address    = US"";
1031 int     proxy_local_port       = 0;
1032 BOOL    proxy_session          = FALSE;
1033 BOOL    proxy_session_failed   = FALSE;
1034 #endif
1035
1036 uschar *prvscheck_address      = NULL;
1037 uschar *prvscheck_keynum       = NULL;
1038 uschar *prvscheck_result       = NULL;
1039
1040
1041 const uschar *qualify_domain_recipient = NULL;
1042 uschar *qualify_domain_sender  = NULL;
1043 BOOL    queue_2stage           = FALSE;
1044 uschar *queue_domains          = NULL;
1045 int     queue_interval         = -1;
1046 BOOL    queue_list_requires_admin = TRUE;
1047 uschar *queue_name             = US"";
1048 BOOL    queue_only             = FALSE;
1049 uschar *queue_only_file        = NULL;
1050 int     queue_only_load        = -1;
1051 BOOL    queue_only_load_latch  = TRUE;
1052 BOOL    queue_only_override    = TRUE;
1053 BOOL    queue_only_policy      = FALSE;
1054 BOOL    queue_run_first_delivery = FALSE;
1055 BOOL    queue_run_force        = FALSE;
1056 BOOL    queue_run_in_order     = FALSE;
1057 BOOL    queue_run_local        = FALSE;
1058 uschar *queue_run_max          = US"5";
1059 pid_t   queue_run_pid          = (pid_t)0;
1060 int     queue_run_pipe         = -1;
1061 BOOL    queue_running          = FALSE;
1062 BOOL    queue_smtp             = FALSE;
1063 uschar *queue_smtp_domains     = NULL;
1064
1065 unsigned int random_seed       = 0;
1066 tree_node *ratelimiters_cmd    = NULL;
1067 tree_node *ratelimiters_conn   = NULL;
1068 tree_node *ratelimiters_mail   = NULL;
1069 uschar *raw_active_hostname    = NULL;
1070 uschar *raw_sender             = NULL;
1071 uschar **raw_recipients        = NULL;
1072 int     raw_recipients_count   = 0;
1073
1074 int     rcpt_count             = 0;
1075 int     rcpt_fail_count        = 0;
1076 int     rcpt_defer_count       = 0;
1077 gid_t   real_gid;
1078 uid_t   real_uid;
1079 BOOL    really_exim            = TRUE;
1080 BOOL    receive_call_bombout   = FALSE;
1081 int     receive_linecount      = 0;
1082 int     receive_messagecount   = 0;
1083 int     receive_timeout        = 0;
1084 int     received_count         = 0;
1085 uschar *received_for           = NULL;
1086
1087 /*  This is the default text for Received headers generated by Exim. The
1088 date  will be automatically added on the end. */
1089
1090 uschar *received_header_text   = US
1091      "Received: "
1092      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1093      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1094      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1095      "by $primary_hostname "
1096      "${if def:received_protocol {with $received_protocol}} "
1097      #ifdef SUPPORT_TLS
1098      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1099      #endif
1100      "(Exim $version_number)\n\t"
1101      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1102      "id $message_exim_id"
1103      "${if def:received_for {\n\tfor $received_for}}"
1104      "\0<---------------Space to patch received_header_text->";
1105
1106 int     received_headers_max   = 30;
1107 uschar *received_protocol      = NULL;
1108 int     received_time          = 0;
1109 uschar *recipient_data         = NULL;
1110 uschar *recipient_unqualified_hosts = NULL;
1111 uschar *recipient_verify_failure = NULL;
1112 int     recipients_count       = 0;
1113 BOOL    recipients_discarded   = FALSE;
1114 recipient_item  *recipients_list = NULL;
1115 int     recipients_list_max    = 0;
1116 int     recipients_max         = 0;
1117 BOOL    recipients_max_reject  = FALSE;
1118 const pcre *regex_AUTH         = NULL;
1119 const pcre *regex_check_dns_names = NULL;
1120 const pcre *regex_From         = NULL;
1121 const pcre *regex_IGNOREQUOTA  = NULL;
1122 const pcre *regex_PIPELINING   = NULL;
1123 const pcre *regex_SIZE         = NULL;
1124 const pcre *regex_ismsgid      = NULL;
1125 const pcre *regex_smtp_code    = NULL;
1126 uschar *regex_vars[REGEX_VARS];
1127 #ifdef WHITELIST_D_MACROS
1128 const pcre *regex_whitelisted_macro = NULL;
1129 #endif
1130 #ifdef WITH_CONTENT_SCAN
1131 uschar *regex_match_string     = NULL;
1132 #endif
1133 int     remote_delivery_count  = 0;
1134 int     remote_max_parallel    = 2;
1135 uschar *remote_sort_domains    = NULL;
1136 int     retry_data_expire      = 7*24*60*60;
1137 int     retry_interval_max     = 24*60*60;
1138 int     retry_maximum_timeout  = 0;        /* set from retry config */
1139 retry_config  *retries         = NULL;
1140 uschar *return_path            = NULL;
1141 BOOL    return_path_remove     = TRUE;
1142 int     rewrite_existflags     = 0;
1143 uschar *rfc1413_hosts          = US"@[]";
1144 int     rfc1413_query_timeout  = 0;
1145 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1146 uid_t   root_gid               = ROOT_GID;
1147 uid_t   root_uid               = ROOT_UID;
1148
1149 router_instance  *routers  = NULL;
1150 router_instance  router_defaults = {
1151     NULL,                      /* chain pointer */
1152     NULL,                      /* name */
1153     NULL,                      /* info */
1154     NULL,                      /* private options block pointer */
1155     NULL,                      /* driver name */
1156
1157     NULL,                      /* address_data */
1158 #ifdef EXPERIMENTAL_BRIGHTMAIL
1159     NULL,                      /* bmi_rule */
1160 #endif
1161     NULL,                      /* cannot_route_message */
1162     NULL,                      /* condition */
1163     NULL,                      /* current_directory */
1164     NULL,                      /* debug_string */
1165     NULL,                      /* domains */
1166     NULL,                      /* errors_to */
1167     NULL,                      /* expand_gid */
1168     NULL,                      /* expand_uid */
1169     NULL,                      /* expand_more */
1170     NULL,                      /* expand_unseen */
1171     NULL,                      /* extra_headers */
1172     NULL,                      /* fallback_hosts */
1173     NULL,                      /* home_directory */
1174     NULL,                      /* ignore_target_hosts */
1175     NULL,                      /* local_parts */
1176     NULL,                      /* pass_router_name */
1177     NULL,                      /* prefix */
1178     NULL,                      /* redirect_router_name */
1179     NULL,                      /* remove_headers */
1180     NULL,                      /* require_files */
1181     NULL,                      /* router_home_directory */
1182     US"freeze",                /* self */
1183     NULL,                      /* senders */
1184     NULL,                      /* suffix */
1185     NULL,                      /* translate_ip_address */
1186     NULL,                      /* transport_name */
1187
1188     TRUE,                      /* address_test */
1189 #ifdef EXPERIMENTAL_BRIGHTMAIL
1190     FALSE,                     /* bmi_deliver_alternate */
1191     FALSE,                     /* bmi_deliver_default */
1192     FALSE,                     /* bmi_dont_deliver */
1193 #endif
1194     TRUE,                      /* expn */
1195     FALSE,                     /* caseful_local_part */
1196     FALSE,                     /* check_local_user */
1197     FALSE,                     /* disable_logging */
1198     FALSE,                     /* fail_verify_recipient */
1199     FALSE,                     /* fail_verify_sender */
1200     FALSE,                     /* gid_set */
1201     FALSE,                     /* initgroups */
1202     TRUE_UNSET,                /* log_as_local */
1203     TRUE,                      /* more */
1204     FALSE,                     /* pass_on_timeout */
1205     FALSE,                     /* prefix_optional */
1206     TRUE,                      /* repeat_use */
1207     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1208     FALSE,                     /* same_domain_copy_routing */
1209     FALSE,                     /* self_rewrite */
1210     FALSE,                     /* suffix_optional */
1211     FALSE,                     /* verify_only */
1212     TRUE,                      /* verify_recipient */
1213     TRUE,                      /* verify_sender */
1214     FALSE,                     /* uid_set */
1215     FALSE,                     /* unseen */
1216     FALSE,                     /* dsn_lasthop */
1217
1218     self_freeze,               /* self_code */
1219     (uid_t)(-1),               /* uid */
1220     (gid_t)(-1),               /* gid */
1221
1222     NULL,                      /* fallback_hostlist */
1223     NULL,                      /* transport instance */
1224     NULL,                      /* pass_router */
1225     NULL,                      /* redirect_router */
1226
1227     { NULL, NULL },            /* dnssec_domains {require,request} */
1228 };
1229
1230 uschar *router_name            = NULL;
1231
1232 ip_address_item *running_interfaces = NULL;
1233 BOOL    running_in_test_harness = FALSE;
1234
1235 /* This is a weird one. The following string gets patched in the binary by the
1236 script that sets up a copy of Exim for running in the test harness. It seems
1237 that compilers are now clever, and share constant strings if they can.
1238 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1239 make use of the end of this string in order to save space. So the patching then
1240 wrecks this. We defeat this optimization by adding some additional characters
1241 onto the end of the string. */
1242
1243 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1244
1245 int     runrc                  = 0;
1246
1247 uschar *search_error_message   = NULL;
1248 BOOL    search_find_defer      = FALSE;
1249 uschar *self_hostname          = NULL;
1250 uschar *sender_address         = NULL;
1251 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1252 uschar *sender_address_data    = NULL;
1253 BOOL    sender_address_forced  = FALSE;
1254 uschar *sender_address_unrewritten = NULL;
1255 uschar *sender_data            = NULL;
1256 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1257 uschar *sender_fullhost        = NULL;
1258 BOOL    sender_helo_dnssec     = FALSE;
1259 uschar *sender_helo_name       = NULL;
1260 uschar **sender_host_aliases   = &no_aliases;
1261 uschar *sender_host_address    = NULL;
1262 uschar *sender_host_authenticated = NULL;
1263 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1264 BOOL    sender_host_dnssec     = FALSE;
1265 uschar *sender_host_name       = NULL;
1266 int     sender_host_port       = 0;
1267 BOOL    sender_host_notsocket  = FALSE;
1268 BOOL    sender_host_unknown    = FALSE;
1269 uschar *sender_ident           = NULL;
1270 BOOL    sender_local           = FALSE;
1271 BOOL    sender_name_forced     = FALSE;
1272 uschar *sender_rate            = NULL;
1273 uschar *sender_rate_limit      = NULL;
1274 uschar *sender_rate_period     = NULL;
1275 uschar *sender_rcvhost         = NULL;
1276 BOOL    sender_set_untrusted   = FALSE;
1277 uschar *sender_unqualified_hosts = NULL;
1278 uschar *sender_verify_failure = NULL;
1279 address_item *sender_verified_list  = NULL;
1280 address_item *sender_verified_failed = NULL;
1281 int     sender_verified_rc     = -1;
1282 BOOL    sender_verified_responded = FALSE;
1283 uschar *sending_ip_address     = NULL;
1284 int     sending_port           = -1;
1285 SIGNAL_BOOL sigalrm_seen       = FALSE;
1286 uschar **sighup_argv           = NULL;
1287 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1288 int     smtp_accept_count      = 0;
1289 BOOL    smtp_accept_keepalive  = TRUE;
1290 int     smtp_accept_max        = 20;
1291 int     smtp_accept_max_nonmail= 10;
1292 uschar *smtp_accept_max_nonmail_hosts = US"*";
1293 int     smtp_accept_max_per_connection = 1000;
1294 uschar *smtp_accept_max_per_host = NULL;
1295 int     smtp_accept_queue      = 0;
1296 int     smtp_accept_queue_per_connection = 10;
1297 int     smtp_accept_reserve    = 0;
1298 uschar *smtp_active_hostname   = NULL;
1299 BOOL    smtp_authenticated     = FALSE;
1300 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1301                              "Exim $version_number $tod_full"
1302                              "\0<---------------Space to patch smtp_banner->";
1303 BOOL    smtp_batched_input     = FALSE;
1304 BOOL    smtp_check_spool_space = TRUE;
1305 int     smtp_ch_index          = 0;
1306 uschar *smtp_cmd_argument      = NULL;
1307 uschar *smtp_cmd_buffer        = NULL;
1308 time_t  smtp_connection_start  = 0;
1309 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1310 int     smtp_connect_backlog   = 20;
1311 double  smtp_delay_mail        = 0.0;
1312 double  smtp_delay_rcpt        = 0.0;
1313 BOOL    smtp_enforce_sync      = TRUE;
1314 FILE   *smtp_in                = NULL;
1315 BOOL    smtp_input             = FALSE;
1316 int     smtp_load_reserve      = -1;
1317 int     smtp_mailcmd_count     = 0;
1318 FILE   *smtp_out               = NULL;
1319 uschar *smtp_etrn_command      = NULL;
1320 BOOL    smtp_etrn_serialize    = TRUE;
1321 int     smtp_max_synprot_errors= 3;
1322 int     smtp_max_unknown_commands = 3;
1323 uschar *smtp_notquit_reason    = NULL;
1324 uschar *smtp_ratelimit_hosts   = NULL;
1325 uschar *smtp_ratelimit_mail    = NULL;
1326 uschar *smtp_ratelimit_rcpt    = NULL;
1327 uschar *smtp_read_error        = US"";
1328 int     smtp_receive_timeout   = 5*60;
1329 uschar *smtp_receive_timeout_s = NULL;
1330 uschar *smtp_reserve_hosts     = NULL;
1331 BOOL    smtp_return_error_details = FALSE;
1332 int     smtp_rlm_base          = 0;
1333 double  smtp_rlm_factor        = 0.0;
1334 int     smtp_rlm_limit         = 0;
1335 int     smtp_rlm_threshold     = INT_MAX;
1336 int     smtp_rlr_base          = 0;
1337 double  smtp_rlr_factor        = 0.0;
1338 int     smtp_rlr_limit         = 0;
1339 int     smtp_rlr_threshold     = INT_MAX;
1340 unsigned smtp_peer_options     = 0;
1341 unsigned smtp_peer_options_wrap= 0;
1342 #ifdef SUPPORT_I18N
1343 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1344 #endif
1345
1346 #ifdef WITH_CONTENT_SCAN
1347 uschar *spamd_address          = US"127.0.0.1 783";
1348 uschar *spam_bar               = NULL;
1349 uschar *spam_report            = NULL;
1350 uschar *spam_action            = NULL;
1351 uschar *spam_score             = NULL;
1352 uschar *spam_score_int         = NULL;
1353 #endif
1354 #ifdef EXPERIMENTAL_SPF
1355 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1356 uschar *spf_header_comment     = NULL;
1357 uschar *spf_received           = NULL;
1358 uschar *spf_result             = NULL;
1359 uschar *spf_smtp_comment       = NULL;
1360 #endif
1361
1362 BOOL    split_spool_directory  = FALSE;
1363 uschar *spool_directory        = US SPOOL_DIRECTORY
1364                            "\0<--------------Space to patch spool_directory->";
1365 #ifdef EXPERIMENTAL_SRS
1366 uschar *srs_config             = NULL;
1367 uschar *srs_db_address         = NULL;
1368 uschar *srs_db_key             = NULL;
1369 int     srs_hashlength         = 6;
1370 int     srs_hashmin            = -1;
1371 int     srs_maxage             = 31;
1372 uschar *srs_orig_recipient     = NULL;
1373 uschar *srs_orig_sender        = NULL;
1374 uschar *srs_recipient          = NULL;
1375 uschar *srs_secrets            = NULL;
1376 uschar *srs_status             = NULL;
1377 BOOL    srs_usehash            = TRUE;
1378 BOOL    srs_usetimestamp       = TRUE;
1379 #endif
1380 BOOL    strict_acl_vars        = FALSE;
1381 int     string_datestamp_offset= -1;
1382 int     string_datestamp_length= 0;
1383 int     string_datestamp_type  = -1;
1384 BOOL    strip_excess_angle_brackets = FALSE;
1385 BOOL    strip_trailing_dot     = FALSE;
1386 uschar *submission_domain      = NULL;
1387 BOOL    submission_mode        = FALSE;
1388 uschar *submission_name        = NULL;
1389 BOOL    suppress_local_fixups  = FALSE;
1390 BOOL    suppress_local_fixups_default = FALSE;
1391 BOOL    synchronous_delivery   = FALSE;
1392 BOOL    syslog_duplication     = TRUE;
1393 int     syslog_facility        = LOG_MAIL;
1394 BOOL    syslog_pid             = TRUE;
1395 uschar *syslog_processname     = US"exim";
1396 BOOL    syslog_timestamp       = TRUE;
1397 uschar *system_filter          = NULL;
1398
1399 uschar *system_filter_directory_transport = NULL;
1400 uschar *system_filter_file_transport = NULL;
1401 uschar *system_filter_pipe_transport = NULL;
1402 uschar *system_filter_reply_transport = NULL;
1403
1404 gid_t   system_filter_gid      = 0;
1405 BOOL    system_filter_gid_set  = FALSE;
1406 uid_t   system_filter_uid      = (uid_t)-1;
1407 BOOL    system_filter_uid_set  = FALSE;
1408 BOOL    system_filtering       = FALSE;
1409
1410 BOOL    tcp_fastopen_ok        = FALSE;
1411 BOOL    tcp_nodelay            = TRUE;
1412 #ifdef USE_TCP_WRAPPERS
1413 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1414 #endif
1415 int     test_harness_load_avg  = 0;
1416 int     thismessage_size_limit = 0;
1417 int     timeout_frozen_after   = 0;
1418 BOOL    timestamps_utc         = FALSE;
1419
1420 transport_instance  *transports = NULL;
1421
1422 transport_instance  transport_defaults = {
1423     NULL,                     /* chain pointer */
1424     NULL,                     /* name */
1425     NULL,                     /* info */
1426     NULL,                     /* private options block pointer */
1427     NULL,                     /* driver name */
1428     NULL,                     /* setup entry point */
1429     1,                        /* batch_max */
1430     NULL,                     /* batch_id */
1431     NULL,                     /* home_dir */
1432     NULL,                     /* current_dir */
1433     NULL,                     /* expand-multi-domain */
1434     TRUE,                     /* multi-domain */
1435     FALSE,                    /* overrides_hosts */
1436     100,                      /* max_addresses */
1437     500,                      /* connection_max_messages */
1438     FALSE,                    /* deliver_as_creator */
1439     FALSE,                    /* disable_logging */
1440     FALSE,                    /* initgroups */
1441     FALSE,                    /* uid_set */
1442     FALSE,                    /* gid_set */
1443     (uid_t)(-1),              /* uid */
1444     (gid_t)(-1),              /* gid */
1445     NULL,                     /* expand_uid */
1446     NULL,                     /* expand_gid */
1447     NULL,                     /* warn_message */
1448     NULL,                     /* shadow */
1449     NULL,                     /* shadow_condition */
1450     NULL,                     /* filter_command */
1451     NULL,                     /* add_headers */
1452     NULL,                     /* remove_headers */
1453     NULL,                     /* return_path */
1454     NULL,                     /* debug_string */
1455     NULL,                     /* max_parallel */
1456     NULL,                     /* message_size_limit */
1457     NULL,                     /* headers_rewrite */
1458     NULL,                     /* rewrite_rules */
1459     0,                        /* rewrite_existflags */
1460     300,                      /* filter_timeout */
1461     FALSE,                    /* body_only */
1462     FALSE,                    /* delivery_date_add */
1463     FALSE,                    /* envelope_to_add */
1464     FALSE,                    /* headers_only */
1465     FALSE,                    /* rcpt_include_affixes */
1466     FALSE,                    /* return_path_add */
1467     FALSE,                    /* return_output */
1468     FALSE,                    /* return_fail_output */
1469     FALSE,                    /* log_output */
1470     FALSE,                    /* log_fail_output */
1471     FALSE,                    /* log_defer_output */
1472     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1473                                  1 nor 0 so can detect unset */
1474 #ifndef DISABLE_EVENT
1475    ,NULL                      /* event_action */
1476 #endif
1477 };
1478
1479 int     transport_count;
1480 uschar *transport_name          = NULL;
1481 int     transport_newlines;
1482 const uschar **transport_filter_argv  = NULL;
1483 int     transport_filter_timeout;
1484 BOOL    transport_filter_timed_out = FALSE;
1485 int     transport_write_timeout= 0;
1486
1487 tree_node  *tree_dns_fails     = NULL;
1488 tree_node  *tree_duplicates    = NULL;
1489 tree_node  *tree_nonrecipients = NULL;
1490 tree_node  *tree_unusable      = NULL;
1491
1492 BOOL    trusted_caller         = FALSE;
1493 BOOL    trusted_config         = TRUE;
1494 gid_t  *trusted_groups         = NULL;
1495 uid_t  *trusted_users          = NULL;
1496 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1497
1498 uschar *unknown_login          = NULL;
1499 uschar *unknown_username       = NULL;
1500 uschar *untrusted_set_sender   = NULL;
1501
1502 /*  A regex for matching a "From_" line in an incoming message, in the form
1503
1504     From ph10 Fri Jan  5 12:35 GMT 1996
1505
1506 which  the "mail" commands send to the MTA (undocumented, of course), or in
1507 the  form
1508
1509     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1510
1511 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1512 Because  of variations in time formats, just match up to the minutes. That
1513 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1514 so  just require one digit for hours and minutes. The weekday is also absent
1515 in  some forms. */
1516
1517 uschar *uucp_from_pattern      = US
1518    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1519    "(?:"                                          /* Non-extracting bracket */
1520    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1521    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1522    ")"                                            /* End alternation */
1523    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1524
1525 uschar *uucp_from_sender       = US"$1";
1526
1527 uschar *verify_mode            = NULL;
1528 uschar *version_copyright      =
1529  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1530    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1531 uschar *version_date           = US"?";
1532 uschar *version_cnumber        = US"????";
1533 uschar *version_string         = US"?";
1534
1535 uschar *warn_message_file      = NULL;
1536 int     warning_count          = 0;
1537 uschar *warnmsg_delay          = NULL;
1538 uschar *warnmsg_recipients     = NULL;
1539 BOOL    write_rejectlog        = TRUE;
1540
1541
1542 /*  End of globals.c */