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 #if !defined(STAND_ALONE) && !defined(MACRO_PREDEF)
 186 int (*lwr_receive_getc)(unsigned) = stdin_getc;
 187 uschar * (*lwr_receive_getbuf)(unsigned *) = NULL;
 188 int (*lwr_receive_ungetc)(int) = stdin_ungetc;
 189 int (*receive_getc)(unsigned)  = stdin_getc;
 190 uschar * (*receive_getbuf)(unsigned *)  = NULL;
 191 void (*receive_get_cache)(void)= NULL;
 192 int (*receive_ungetc)(int)     = stdin_ungetc;
 193 int (*receive_feof)(void)      = stdin_feof;
 194 int (*receive_ferror)(void)    = stdin_ferror;
 195 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
 196 #endif
 197
 198
 199 /* List of per-address expansion variables for clearing and saving/restoring
 200 when verifying one address while routing/verifying another. We have to have
 201 the size explicit, because it is referenced from more than one module. */
 202
 203 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 204   CUSS &deliver_address_data,
 205   CUSS &deliver_domain,
 206   CUSS &deliver_domain_data,
 207   CUSS &deliver_domain_orig,
 208   CUSS &deliver_domain_parent,
 209   CUSS &deliver_localpart,
 210   CUSS &deliver_localpart_data,
 211   CUSS &deliver_localpart_orig,
 212   CUSS &deliver_localpart_parent,
 213   CUSS &deliver_localpart_prefix,
 214   CUSS &deliver_localpart_suffix,
 215   CUSS (uschar **)(&deliver_recipients),
 216   CUSS &deliver_host,
 217   CUSS &deliver_home,
 218   CUSS &address_file,
 219   CUSS &address_pipe,
 220   CUSS &self_hostname,
 221   NULL };
 222
 223 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 224
 225 /* General global variables */
 226
 227 header_line *acl_added_headers = NULL;
 228 tree_node *acl_anchor          = NULL;
 229 uschar *acl_arg[9]             = {NULL, NULL, NULL, NULL, NULL,
 230                                   NULL, NULL, NULL, NULL};
 231 int     acl_narg               = 0;
 232
 233 int     acl_level              = 0;
 234
 235 uschar *acl_not_smtp           = NULL;
 236 #ifdef WITH_CONTENT_SCAN
 237 uschar *acl_not_smtp_mime      = NULL;
 238 #endif
 239 uschar *acl_not_smtp_start     = NULL;
 240 uschar *acl_removed_headers    = NULL;
 241 uschar *acl_smtp_auth          = NULL;
 242 uschar *acl_smtp_connect       = NULL;
 243 uschar *acl_smtp_data          = NULL;
 244 #ifndef DISABLE_PRDR
 245 uschar *acl_smtp_data_prdr     = US"accept";
 246 #endif
 247 #ifndef DISABLE_DKIM
 248 uschar *acl_smtp_dkim          = NULL;
 249 #endif
 250 uschar *acl_smtp_etrn          = NULL;
 251 uschar *acl_smtp_expn          = NULL;
 252 uschar *acl_smtp_helo          = NULL;
 253 uschar *acl_smtp_mail          = NULL;
 254 uschar *acl_smtp_mailauth      = NULL;
 255 #ifdef WITH_CONTENT_SCAN
 256 uschar *acl_smtp_mime          = NULL;
 257 #endif
 258 uschar *acl_smtp_notquit       = NULL;
 259 uschar *acl_smtp_predata       = NULL;
 260 uschar *acl_smtp_quit          = NULL;
 261 uschar *acl_smtp_rcpt          = NULL;
 262 uschar *acl_smtp_starttls      = NULL;
 263 uschar *acl_smtp_vrfy          = NULL;
 264
 265 BOOL    acl_temp_details       = FALSE;
 266 tree_node *acl_var_c           = NULL;
 267 tree_node *acl_var_m           = NULL;
 268 uschar *acl_verify_message     = NULL;
 269 string_item *acl_warn_logged   = NULL;
 270
 271 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 272 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 273
 274 uschar *acl_wherenames[]       = { US"RCPT",
 275                                    US"MAIL",
 276                                    US"PREDATA",
 277                                    US"MIME",
 278                                    US"DKIM",
 279                                    US"DATA",
 280 #ifndef DISABLE_PRDR
 281                                    US"PRDR",
 282 #endif
 283                                    US"non-SMTP",
 284                                    US"AUTH",
 285                                    US"connection",
 286                                    US"ETRN",
 287                                    US"EXPN",
 288                                    US"EHLO or HELO",
 289                                    US"MAILAUTH",
 290                                    US"non-SMTP-start",
 291                                    US"NOTQUIT",
 292                                    US"QUIT",
 293                                    US"STARTTLS",
 294                                    US"VRFY",
 295                                    US"delivery",
 296                                    US"unknown"
 297                                  };
 298
 299 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
 300                                    US"550",     /* MAIL */
 301                                    US"550",     /* PREDATA */
 302                                    US"550",     /* MIME */
 303                                    US"550",     /* DKIM */
 304                                    US"550",     /* DATA */
 305 #ifndef DISABLE_PRDR
 306                                    US"550",    /* RCPT PRDR */
 307 #endif
 308                                    US"0",       /* not SMTP; not relevant */
 309                                    US"503",     /* AUTH */
 310                                    US"550",     /* connect */
 311                                    US"458",     /* ETRN */
 312                                    US"550",     /* EXPN */
 313                                    US"550",     /* HELO/EHLO */
 314                                    US"0",       /* MAILAUTH; not relevant */
 315                                    US"0",       /* not SMTP; not relevant */
 316                                    US"0",       /* NOTQUIT; not relevant */
 317                                    US"0",       /* QUIT; not relevant */
 318                                    US"550",     /* STARTTLS */
 319                                    US"252",     /* VRFY */
 320                                    US"0",       /* delivery; not relevant */
 321                                    US"0"        /* unknown; not relevant */
 322                                  };
 323
 324 BOOL    active_local_from_check = FALSE;
 325 BOOL    active_local_sender_retain = FALSE;
 326 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
 327 uschar *add_environment        = NULL;
 328 address_item  *addr_duplicate  = NULL;
 329
 330 address_item address_defaults = {
 331   NULL,                 /* next */
 332   NULL,                 /* parent */
 333   NULL,                 /* first */
 334   NULL,                 /* dupof */
 335   NULL,                 /* start_router */
 336   NULL,                 /* router */
 337   NULL,                 /* transport */
 338   NULL,                 /* host_list */
 339   NULL,                 /* host_used */
 340   NULL,                 /* fallback_hosts */
 341   NULL,                 /* reply */
 342   NULL,                 /* retries */
 343   NULL,                 /* address */
 344   NULL,                 /* unique */
 345   NULL,                 /* cc_local_part */
 346   NULL,                 /* lc_local_part */
 347   NULL,                 /* local_part */
 348   NULL,                 /* prefix */
 349   NULL,                 /* suffix */
 350   NULL,                 /* domain */
 351   NULL,                 /* address_retry_key */
 352   NULL,                 /* domain_retry_key */
 353   NULL,                 /* current_dir */
 354   NULL,                 /* home_dir */
 355   NULL,                 /* message */
 356   NULL,                 /* user_message */
 357   NULL,                 /* onetime_parent */
 358   NULL,                 /* pipe_expandn */
 359   NULL,                 /* return_filename */
 360   NULL,                 /* self_hostname */
 361   NULL,                 /* shadow_message */
 362 #ifdef SUPPORT_TLS
 363   NULL,                 /* cipher */
 364   NULL,                 /* ourcert */
 365   NULL,                 /* peercert */
 366   NULL,                 /* peerdn */
 367   OCSP_NOT_REQ,         /* ocsp */
 368 #endif
 369 #ifdef EXPERIMENTAL_DSN_INFO
 370   NULL,                 /* smtp_greeting */
 371   NULL,                 /* helo_response */
 372 #endif
 373   NULL,                 /* authenticator */
 374   NULL,                 /* auth_id */
 375   NULL,                 /* auth_sndr */
 376   NULL,                 /* dsn_orcpt */
 377   0,                    /* dsn_flags */
 378   0,                    /* dsn_aware */
 379   (uid_t)(-1),          /* uid */
 380   (gid_t)(-1),          /* gid */
 381   0,                    /* flags */
 382   { 0 },                /* domain_cache - any larger array should be zeroed */
 383   { 0 },                /* localpart_cache - ditto */
 384   -1,                   /* mode */
 385   0,                    /* more_errno */
 386   0,                    /* delivery_usec */
 387   ERRNO_UNKNOWNERROR,   /* basic_errno */
 388   0,                    /* child_count */
 389   -1,                   /* return_file */
 390   SPECIAL_NONE,         /* special_action */
 391   DEFER,                /* transport_return */
 392   {                     /* fields that are propagated to children */
 393     NULL,               /* address_data */
 394     NULL,               /* domain_data */
 395     NULL,               /* localpart_data */
 396     NULL,               /* errors_address */
 397     NULL,               /* extra_headers */
 398     NULL,               /* remove_headers */
 399 #ifdef EXPERIMENTAL_SRS
 400     NULL,               /* srs_sender */
 401 #endif
 402 #ifdef SUPPORT_I18N
 403     FALSE,              /* utf8 */
 404 #endif
 405   }
 406 };
 407
 408 uschar *address_file           = NULL;
 409 uschar *address_pipe           = NULL;
 410 BOOL    address_test_mode      = FALSE;
 411 tree_node *addresslist_anchor  = NULL;
 412 int     addresslist_count      = 0;
 413 gid_t  *admin_groups           = NULL;
 414 BOOL    admin_user             = FALSE;
 415 BOOL    allow_auth_unadvertised= FALSE;
 416 BOOL    allow_domain_literals  = FALSE;
 417 BOOL    allow_mx_to_ip         = FALSE;
 418 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 419 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 420 BOOL    allow_utf8_domains     = FALSE;
 421 uschar *authenticated_fail_id  = NULL;
 422 uschar *authenticated_id       = NULL;
 423 uschar *authenticated_sender   = NULL;
 424 BOOL    authentication_failed  = FALSE;
 425 auth_instance  *auths          = NULL;
 426 uschar *auth_advertise_hosts   = US"*";
 427 auth_instance auth_defaults    = {
 428     NULL,                      /* chain pointer */
 429     NULL,                      /* name */
 430     NULL,                      /* info */
 431     NULL,                      /* private options block pointer */
 432     NULL,                      /* driver_name */
 433     NULL,                      /* advertise_condition */
 434     NULL,                      /* client_condition */
 435     NULL,                      /* public_name */
 436     NULL,                      /* set_id */
 437     NULL,                      /* set_client_id */
 438     NULL,                      /* server_mail_auth_condition */
 439     NULL,                      /* server_debug_string */
 440     NULL,                      /* server_condition */
 441     FALSE,                     /* client */
 442     FALSE,                     /* server */
 443     FALSE                      /* advertised */
 444 };
 445
 446 uschar *auth_defer_msg         = US"reason not recorded";
 447 uschar *auth_defer_user_msg    = US"";
 448 uschar *auth_vars[AUTH_VARS];
 449 int     auto_thaw              = 0;
 450 #ifdef WITH_CONTENT_SCAN
 451 BOOL    av_failed              = FALSE;
 452 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 453 #endif
 454
 455 BOOL    background_daemon      = TRUE;
 456
 457 #if BASE_62 == 62
 458 uschar *base62_chars=
 459     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 460 #else
 461 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 462 #endif
 463
 464 uschar *bi_command             = NULL;
 465 uschar *big_buffer             = NULL;
 466 int     big_buffer_size        = BIG_BUFFER_SIZE;
 467 #ifdef EXPERIMENTAL_BRIGHTMAIL
 468 uschar *bmi_alt_location       = NULL;
 469 uschar *bmi_base64_tracker_verdict = NULL;
 470 uschar *bmi_base64_verdict     = NULL;
 471 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 472 int     bmi_deliver            = 1;
 473 int     bmi_run                = 0;
 474 uschar *bmi_verdicts           = NULL;
 475 #endif
 476 int     bsmtp_transaction_linecount = 0;
 477 int     body_8bitmime          = 0;
 478 int     body_linecount         = 0;
 479 int     body_zerocount         = 0;
 480 uschar *bounce_message_file    = NULL;
 481 uschar *bounce_message_text    = NULL;
 482 uschar *bounce_recipient       = NULL;
 483 BOOL    bounce_return_body     = TRUE;
 484 int     bounce_return_linesize_limit = 998;
 485 BOOL    bounce_return_message  = TRUE;
 486 int     bounce_return_size_limit = 100*1024;
 487 uschar *bounce_sender_authentication = NULL;
 488 uschar *builtin_macros_create_trigger = NULL;
 489
 490 uschar *callout_address        = NULL;
 491 int     callout_cache_domain_positive_expire = 7*24*60*60;
 492 int     callout_cache_domain_negative_expire = 3*60*60;
 493 int     callout_cache_positive_expire = 24*60*60;
 494 int     callout_cache_negative_expire = 2*60*60;
 495 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 496 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
 497 int     check_log_inodes       = 100;
 498 int     check_log_space        = 10*1024;       /* 10K Kbyte == 10MB */
 499 BOOL    check_rfc2047_length   = TRUE;
 500 int     check_spool_inodes     = 100;
 501 int     check_spool_space      = 10*1024;       /* 10K Kbyte == 10MB */
 502
 503 uschar *chunking_advertise_hosts = US"*";
 504 unsigned chunking_datasize     = 0;
 505 unsigned chunking_data_left    = 0;
 506 BOOL    chunking_offered       = FALSE;
 507 chunking_state_t chunking_state= CHUNKING_NOT_OFFERED;
 508 const pcre *regex_CHUNKING     = NULL;
 509
 510 uschar *client_authenticator   = NULL;
 511 uschar *client_authenticated_id = NULL;
 512 uschar *client_authenticated_sender = NULL;
 513 int     clmacro_count          = 0;
 514 uschar *clmacros[MAX_CLMACROS];
 515 BOOL    commandline_checks_require_admin = FALSE;
 516 BOOL    config_changed         = FALSE;
 517 FILE   *config_file            = NULL;
 518 const uschar *config_filename  = NULL;
 519 int     config_lineno          = 0;
 520 #ifdef CONFIGURE_GROUP
 521 gid_t   config_gid             = CONFIGURE_GROUP;
 522 #else
 523 gid_t   config_gid             = 0;
 524 #endif
 525 uschar *config_main_filelist   = US CONFIGURE_FILE
 526                          "\0<-----------Space to patch configure_filename->";
 527 uschar *config_main_filename   = NULL;
 528 uschar *config_main_directory  = NULL;
 529
 530 #ifdef CONFIGURE_OWNER
 531 uid_t   config_uid             = CONFIGURE_OWNER;
 532 #else
 533 uid_t   config_uid             = 0;
 534 #endif
 535
 536 int     connection_max_messages= -1;
 537 uschar *continue_proxy_cipher  = NULL;
 538 uschar *continue_hostname      = NULL;
 539 uschar *continue_host_address  = NULL;
 540 BOOL    continue_more          = FALSE;
 541 int     continue_sequence      = 1;
 542 uschar *continue_transport     = NULL;
 543
 544 uschar *csa_status             = NULL;
 545 cut_t   cutthrough = {
 546   FALSE,                                /* verify-only: normal delivery */
 547   FALSE,                                /* delivery: when to attempt */
 548   FALSE,                                /* on defer: spool locally */
 549   FALSE,                                /* not a TLS conn yet */
 550   -1,                                   /* fd: open connection */
 551   0,                                    /* nrcpt: number of addresses */
 552 };
 553
 554 BOOL    daemon_listen          = FALSE;
 555 uschar *daemon_smtp_port       = US"smtp";
 556 int     daemon_startup_retries = 9;
 557 int     daemon_startup_sleep   = 30;
 558
 559 #ifdef EXPERIMENTAL_DCC
 560 BOOL    dcc_direct_add_header  = FALSE;
 561 uschar *dcc_header             = NULL;
 562 uschar *dcc_result             = NULL;
 563 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
 564 uschar *dccifd_options         = US"header";
 565 #endif
 566
 567 BOOL    debug_daemon           = FALSE;
 568 int     debug_fd               = -1;
 569 FILE   *debug_file             = NULL;
 570 int     debug_notall[]         = {
 571   Di_memory,
 572   -1
 573 };
 574 bit_table debug_options[]      = { /* must be in alphabetical order */
 575   BIT_TABLE(D, acl),
 576   BIT_TABLE(D, all),
 577   BIT_TABLE(D, auth),
 578   BIT_TABLE(D, deliver),
 579   BIT_TABLE(D, dns),
 580   BIT_TABLE(D, dnsbl),
 581   BIT_TABLE(D, exec),
 582   BIT_TABLE(D, expand),
 583   BIT_TABLE(D, filter),
 584   BIT_TABLE(D, hints_lookup),
 585   BIT_TABLE(D, host_lookup),
 586   BIT_TABLE(D, ident),
 587   BIT_TABLE(D, interface),
 588   BIT_TABLE(D, lists),
 589   BIT_TABLE(D, load),
 590   BIT_TABLE(D, local_scan),
 591   BIT_TABLE(D, lookup),
 592   BIT_TABLE(D, memory),
 593   BIT_TABLE(D, pid),
 594   BIT_TABLE(D, process_info),
 595   BIT_TABLE(D, queue_run),
 596   BIT_TABLE(D, receive),
 597   BIT_TABLE(D, resolver),
 598   BIT_TABLE(D, retry),
 599   BIT_TABLE(D, rewrite),
 600   BIT_TABLE(D, route),
 601   BIT_TABLE(D, timestamp),
 602   BIT_TABLE(D, tls),
 603   BIT_TABLE(D, transport),
 604   BIT_TABLE(D, uid),
 605   BIT_TABLE(D, verify),
 606 };
 607 int     debug_options_count    = nelem(debug_options);
 608
 609 unsigned int debug_selector    = 0;
 610 BOOL    debug_store            = FALSE;
 611 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 612 uschar *delay_warning_condition=
 613   US"${if or {"
 614             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
 615             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
 616             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
 617             "} {no}{yes}}";
 618 BOOL    delivery_date_remove   = TRUE;
 619 uschar *deliver_address_data   = NULL;
 620 int     deliver_datafile       = -1;
 621 const uschar *deliver_domain   = NULL;
 622 uschar *deliver_domain_data    = NULL;
 623 const uschar *deliver_domain_orig = NULL;
 624 const uschar *deliver_domain_parent = NULL;
 625 BOOL    deliver_drop_privilege = FALSE;
 626 BOOL    deliver_firsttime      = FALSE;
 627 BOOL    deliver_force          = FALSE;
 628 BOOL    deliver_freeze         = FALSE;
 629 time_t  deliver_frozen_at      = 0;
 630 uschar *deliver_home           = NULL;
 631 const uschar *deliver_host     = NULL;
 632 const uschar *deliver_host_address = NULL;
 633 int     deliver_host_port      = 0;
 634 uschar *deliver_in_buffer      = NULL;
 635 ino_t   deliver_inode          = 0;
 636 uschar *deliver_localpart      = NULL;
 637 uschar *deliver_localpart_data = NULL;
 638 uschar *deliver_localpart_orig = NULL;
 639 uschar *deliver_localpart_parent = NULL;
 640 uschar *deliver_localpart_prefix = NULL;
 641 uschar *deliver_localpart_suffix = NULL;
 642 BOOL    deliver_force_thaw     = FALSE;
 643 BOOL    deliver_manual_thaw    = FALSE;
 644 uschar *deliver_out_buffer     = NULL;
 645 int     deliver_queue_load_max = -1;
 646 address_item  *deliver_recipients = NULL;
 647 uschar *deliver_selectstring   = NULL;
 648 BOOL    deliver_selectstring_regex = FALSE;
 649 uschar *deliver_selectstring_sender = NULL;
 650 BOOL    deliver_selectstring_sender_regex = FALSE;
 651 BOOL    disable_callout_flush  = FALSE;
 652 BOOL    disable_delay_flush    = FALSE;
 653 #ifdef ENABLE_DISABLE_FSYNC
 654 BOOL    disable_fsync          = FALSE;
 655 #endif
 656 BOOL    disable_ipv6           = FALSE;
 657 BOOL    disable_logging        = FALSE;
 658
 659 #ifndef DISABLE_DKIM
 660 BOOL    dkim_collect_input       = FALSE;
 661 uschar *dkim_cur_signer          = NULL;
 662 BOOL    dkim_disable_verify      = FALSE;
 663 int     dkim_key_length          = 0;
 664 uschar *dkim_signers             = NULL;
 665 uschar *dkim_signing_domain      = NULL;
 666 uschar *dkim_signing_selector    = NULL;
 667 uschar *dkim_verify_signers      = US"$dkim_signers";
 668 #endif
 669 #ifdef EXPERIMENTAL_DMARC
 670 BOOL    dmarc_has_been_checked  = FALSE;
 671 uschar *dmarc_ar_header         = NULL;
 672 uschar *dmarc_domain_policy     = NULL;
 673 uschar *dmarc_forensic_sender   = NULL;
 674 uschar *dmarc_history_file      = NULL;
 675 uschar *dmarc_status            = NULL;
 676 uschar *dmarc_status_text       = NULL;
 677 uschar *dmarc_tld_file          = NULL;
 678 uschar *dmarc_used_domain       = NULL;
 679 BOOL    dmarc_disable_verify    = FALSE;
 680 BOOL    dmarc_enable_forensic   = FALSE;
 681 #endif
 682
 683 uschar *dns_again_means_nonexist = NULL;
 684 int     dns_csa_search_limit   = 5;
 685 BOOL    dns_csa_use_reverse    = TRUE;
 686 #ifdef EXPERIMENTAL_DANE
 687 int     dns_dane_ok            = -1;
 688 #endif
 689 uschar *dns_ipv4_lookup        = NULL;
 690 int     dns_retrans            = 0;
 691 int     dns_retry              = 0;
 692 int     dns_dnssec_ok          = -1; /* <0 = not coerced */
 693 uschar *dns_trust_aa           = NULL;
 694 int     dns_use_edns0          = -1; /* <0 = not coerced */
 695 uschar *dnslist_domain         = NULL;
 696 uschar *dnslist_matched        = NULL;
 697 uschar *dnslist_text           = NULL;
 698 uschar *dnslist_value          = NULL;
 699 tree_node *domainlist_anchor   = NULL;
 700 int     domainlist_count       = 0;
 701 BOOL    dont_deliver           = FALSE;
 702 BOOL    dot_ends               = TRUE;
 703 BOOL    drop_cr                = FALSE;         /* No longer used */
 704 uschar *dsn_from               = US DEFAULT_DSN_FROM;
 705
 706 BOOL    enable_dollar_recipients = FALSE;
 707 BOOL    envelope_to_remove     = TRUE;
 708 int     errno_quota            = ERRNO_QUOTA;
 709 uschar *errors_copy            = NULL;
 710 int     error_handling         = ERRORS_SENDER;
 711 uschar *errors_reply_to        = NULL;
 712 int     errors_sender_rc       = EXIT_FAILURE;
 713 #ifndef DISABLE_EVENT
 714 uschar *event_action             = NULL;        /* expansion for delivery events */
 715 uschar *event_data               = NULL;        /* auxiliary data variable for event */
 716 int     event_defer_errno        = 0;
 717 const uschar *event_name         = NULL;        /* event name variable */
 718 #endif
 719
 720
 721 gid_t   exim_gid               = EXIM_GID;
 722 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 723 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 724                         "\0<---------------Space to patch exim_path->";
 725 uid_t   exim_uid               = EXIM_UID;
 726 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 727 int     expand_level           = 0;             /* Nesting depth, indent for debug */
 728 int     expand_forbid          = 0;
 729 int     expand_nlength[EXPAND_MAXN+1];
 730 int     expand_nmax            = -1;
 731 uschar *expand_nstring[EXPAND_MAXN+1];
 732 BOOL    expand_string_forcedfail = FALSE;
 733 uschar *expand_string_message;
 734 BOOL    extract_addresses_remove_arguments = TRUE;
 735 uschar *extra_local_interfaces = NULL;
 736
 737 int     fake_response          = OK;
 738 uschar *fake_response_text     = US"Your message has been rejected but is "
 739                                    "being kept for evaluation.\nIf it was a "
 740                                    "legitimate message, it may still be "
 741                                    "delivered to the target recipient(s).";
 742 int     filter_n[FILTER_VARIABLE_COUNT];
 743 BOOL    filter_running         = FALSE;
 744 int     filter_sn[FILTER_VARIABLE_COUNT];
 745 int     filter_test            = FTEST_NONE;
 746 uschar *filter_test_sfile      = NULL;
 747 uschar *filter_test_ufile      = NULL;
 748 uschar *filter_thisaddress     = NULL;
 749 int     finduser_retries       = 0;
 750 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 751 uschar *freeze_tell            = NULL;
 752 uschar *freeze_tell_config     = NULL;
 753 uschar *fudged_queue_times     = US"";
 754
 755 uschar *gecos_name             = NULL;
 756 uschar *gecos_pattern          = NULL;
 757 rewrite_rule  *global_rewrite_rules = NULL;
 758
 759 uschar *headers_charset        = US HEADERS_CHARSET;
 760 int     header_insert_maxlen   = 64 * 1024;
 761 header_line  *header_last      = NULL;
 762 header_line  *header_list      = NULL;
 763 int     header_maxsize         = HEADER_MAXSIZE;
 764 int     header_line_maxsize    = 0;
 765
 766 header_name header_names[] = {
 767   { US"bcc",            3, TRUE,  htype_bcc },
 768   { US"cc",             2, TRUE,  htype_cc },
 769   { US"date",           4, TRUE,  htype_date },
 770   { US"delivery-date", 13, FALSE, htype_delivery_date },
 771   { US"envelope-to",   11, FALSE, htype_envelope_to },
 772   { US"from",           4, TRUE,  htype_from },
 773   { US"message-id",    10, TRUE,  htype_id },
 774   { US"received",       8, FALSE, htype_received },
 775   { US"reply-to",       8, FALSE, htype_reply_to },
 776   { US"return-path",   11, FALSE, htype_return_path },
 777   { US"sender",         6, TRUE,  htype_sender },
 778   { US"subject",        7, FALSE, htype_subject },
 779   { US"to",             2, TRUE,  htype_to }
 780 };
 781
 782 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 783
 784 BOOL    header_rewritten       = FALSE;
 785 uschar *helo_accept_junk_hosts = NULL;
 786 uschar *helo_allow_chars       = US"";
 787 uschar *helo_lookup_domains    = US"@ : @[]";
 788 uschar *helo_try_verify_hosts  = NULL;
 789 BOOL    helo_verified          = FALSE;
 790 BOOL    helo_verify_failed     = FALSE;
 791 uschar *helo_verify_hosts      = NULL;
 792 const uschar *hex_digits       = CUS"0123456789abcdef";
 793 uschar *hold_domains           = NULL;
 794 BOOL    host_checking          = FALSE;
 795 BOOL    host_checking_callout  = FALSE;
 796 uschar *host_data              = NULL;
 797 BOOL    host_find_failed_syntax= FALSE;
 798 uschar *host_lookup            = NULL;
 799 BOOL    host_lookup_deferred   = FALSE;
 800 BOOL    host_lookup_failed     = FALSE;
 801 uschar *host_lookup_order      = US"bydns:byaddr";
 802 uschar *host_lookup_msg        = US"";
 803 int     host_number            = 0;
 804 uschar *host_number_string     = NULL;
 805 uschar *host_reject_connection = NULL;
 806 tree_node *hostlist_anchor     = NULL;
 807 int     hostlist_count         = 0;
 808 uschar *hosts_treat_as_local   = NULL;
 809 uschar *hosts_connection_nolog = NULL;
 810
 811 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 812 BOOL    ignore_fromline_local  = FALSE;
 813 uschar *ignore_fromline_hosts  = NULL;
 814 BOOL    inetd_wait_mode        = FALSE;
 815 int     inetd_wait_timeout     = -1;
 816 uschar *initial_cwd            = NULL;
 817 uschar *interface_address      = NULL;
 818 int     interface_port         = -1;
 819 BOOL    is_inetd               = FALSE;
 820 uschar *iterate_item           = NULL;
 821
 822 int     journal_fd             = -1;
 823
 824 uschar *keep_environment       = NULL;
 825
 826 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 827
 828 uschar *eldap_dn               = NULL;
 829 int     load_average           = -2;
 830 BOOL    local_error_message    = FALSE;
 831 BOOL    local_from_check       = TRUE;
 832 uschar *local_from_prefix      = NULL;
 833 uschar *local_from_suffix      = NULL;
 834
 835 #if HAVE_IPV6
 836 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 837 #else
 838 uschar *local_interfaces       = US"0.0.0.0";
 839 #endif
 840
 841 uschar *local_scan_data        = NULL;
 842 int     local_scan_timeout     = 5*60;
 843 BOOL    local_sender_retain    = FALSE;
 844 gid_t   local_user_gid         = (gid_t)(-1);
 845 uid_t   local_user_uid         = (uid_t)(-1);
 846
 847 tree_node *localpartlist_anchor= NULL;
 848 int     localpartlist_count    = 0;
 849 uschar *log_buffer             = NULL;
 850
 851 int     log_default[]          = { /* for initializing log_selector */
 852   Li_acl_warn_skipped,
 853   Li_connection_reject,
 854   Li_delay_delivery,
 855   Li_dnslist_defer,
 856   Li_etrn,
 857   Li_host_lookup_failed,
 858   Li_lost_incoming_connection,
 859   Li_outgoing_interface, /* see d_log_interface in deliver.c */
 860   Li_queue_run,
 861   Li_rejected_header,
 862   Li_retry_defer,
 863   Li_sender_verify_fail,
 864   Li_size_reject,
 865   Li_skip_delivery,
 866   Li_smtp_confirmation,
 867   Li_tls_certificate_verified,
 868   Li_tls_cipher,
 869   -1
 870 };
 871
 872 uschar *log_file_path          = US LOG_FILE_PATH
 873                            "\0<--------------Space to patch log_file_path->";
 874
 875 int     log_notall[]           = {
 876   -1
 877 };
 878 bit_table log_options[]        = { /* must be in alphabetical order */
 879   BIT_TABLE(L, 8bitmime),
 880   BIT_TABLE(L, acl_warn_skipped),
 881   BIT_TABLE(L, address_rewrite),
 882   BIT_TABLE(L, all),
 883   BIT_TABLE(L, all_parents),
 884   BIT_TABLE(L, arguments),
 885   BIT_TABLE(L, connection_reject),
 886   BIT_TABLE(L, delay_delivery),
 887   BIT_TABLE(L, deliver_time),
 888   BIT_TABLE(L, delivery_size),
 889   BIT_TABLE(L, dnslist_defer),
 890   BIT_TABLE(L, dnssec),
 891   BIT_TABLE(L, etrn),
 892   BIT_TABLE(L, host_lookup_failed),
 893   BIT_TABLE(L, ident_timeout),
 894   BIT_TABLE(L, incoming_interface),
 895   BIT_TABLE(L, incoming_port),
 896   BIT_TABLE(L, lost_incoming_connection),
 897   BIT_TABLE(L, millisec),
 898   BIT_TABLE(L, outgoing_interface),
 899   BIT_TABLE(L, outgoing_port),
 900   BIT_TABLE(L, pid),
 901 #if defined(SUPPORT_PROXY) || defined (SUPPORT_SOCKS)
 902   BIT_TABLE(L, proxy),
 903 #endif
 904   BIT_TABLE(L, queue_run),
 905   BIT_TABLE(L, queue_time),
 906   BIT_TABLE(L, queue_time_overall),
 907   BIT_TABLE(L, received_recipients),
 908   BIT_TABLE(L, received_sender),
 909   BIT_TABLE(L, rejected_header),
 910   { US"rejected_headers", Li_rejected_header },
 911   BIT_TABLE(L, retry_defer),
 912   BIT_TABLE(L, return_path_on_delivery),
 913   BIT_TABLE(L, sender_on_delivery),
 914   BIT_TABLE(L, sender_verify_fail),
 915   BIT_TABLE(L, size_reject),
 916   BIT_TABLE(L, skip_delivery),
 917   BIT_TABLE(L, smtp_confirmation),
 918   BIT_TABLE(L, smtp_connection),
 919   BIT_TABLE(L, smtp_incomplete_transaction),
 920   BIT_TABLE(L, smtp_mailauth),
 921   BIT_TABLE(L, smtp_no_mail),
 922   BIT_TABLE(L, smtp_protocol_error),
 923   BIT_TABLE(L, smtp_syntax_error),
 924   BIT_TABLE(L, subject),
 925   BIT_TABLE(L, tls_certificate_verified),
 926   BIT_TABLE(L, tls_cipher),
 927   BIT_TABLE(L, tls_peerdn),
 928   BIT_TABLE(L, tls_sni),
 929   BIT_TABLE(L, unknown_in_list),
 930 };
 931 int     log_options_count      = nelem(log_options);
 932
 933 int     log_reject_target      = 0;
 934 unsigned int log_selector[log_selector_size]; /* initialized in main() */
 935 uschar *log_selector_string    = NULL;
 936 FILE   *log_stderr             = NULL;
 937 BOOL    log_testing_mode       = FALSE;
 938 BOOL    log_timezone           = FALSE;
 939 uschar *login_sender_address   = NULL;
 940 uschar *lookup_dnssec_authenticated = NULL;
 941 int     lookup_open_max        = 25;
 942 uschar *lookup_value           = NULL;
 943
 944 uschar *mailstore_basename     = NULL;
 945 #ifdef WITH_CONTENT_SCAN
 946 uschar *malware_name           = NULL;  /* Virus Name */
 947 #endif
 948 int     max_received_linelength= 0;
 949 int     max_username_length    = 0;
 950 int     message_age            = 0;
 951 uschar *message_body           = NULL;
 952 uschar *message_body_end       = NULL;
 953 BOOL    message_body_newlines  = FALSE;
 954 int     message_body_size      = 0;
 955 int     message_body_visible   = 500;
 956 int     message_ended          = END_NOTSTARTED;
 957 uschar *message_headers        = NULL;
 958 uschar *message_id;
 959 uschar *message_id_domain      = NULL;
 960 uschar *message_id_text        = NULL;
 961 struct timeval message_id_tv   = { 0, 0 };
 962 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 963 uschar *message_id_external;
 964 int     message_linecount      = 0;
 965 BOOL    message_logs           = TRUE;
 966 int     message_size           = 0;
 967 uschar *message_size_limit     = US"50M";
 968 #ifdef SUPPORT_I18N
 969 BOOL    message_smtputf8       = FALSE;
 970 int     message_utf8_downconvert = 0;   /* -1 ifneeded; 0 never; 1 always */
 971 #endif
 972 uschar  message_subdir[2]      = { 0, 0 };
 973 uschar *message_reference      = NULL;
 974
 975 /* MIME ACL expandables */
 976 #ifdef WITH_CONTENT_SCAN
 977 int     mime_anomaly_level     = 0;
 978 const uschar *mime_anomaly_text      = NULL;
 979 uschar *mime_boundary          = NULL;
 980 uschar *mime_charset           = NULL;
 981 uschar *mime_content_description = NULL;
 982 uschar *mime_content_disposition = NULL;
 983 uschar *mime_content_id        = NULL;
 984 unsigned int mime_content_size = 0;
 985 uschar *mime_content_transfer_encoding = NULL;
 986 uschar *mime_content_type      = NULL;
 987 uschar *mime_decoded_filename  = NULL;
 988 uschar *mime_filename          = NULL;
 989 int     mime_is_multipart      = 0;
 990 int     mime_is_coverletter    = 0;
 991 int     mime_is_rfc822         = 0;
 992 int     mime_part_count        = -1;
 993 #endif
 994
 995 BOOL    mua_wrapper            = FALSE;
 996
 997 uid_t  *never_users            = NULL;
 998 #ifdef WITH_CONTENT_SCAN
 999 BOOL    no_mbox_unspool        = FALSE;
1000 #endif
1001 BOOL    no_multiline_responses = FALSE;
1002
1003 const int on                   = 1;     /* for setsockopt */
1004 const int off                  = 0;
1005
1006 uid_t   original_euid;
1007 gid_t   originator_gid;
1008 uschar *originator_login       = NULL;
1009 uschar *originator_name        = NULL;
1010 uid_t   originator_uid;
1011 uschar *override_local_interfaces = NULL;
1012 uschar *override_pid_file_path = NULL;
1013
1014 BOOL    parse_allow_group      = FALSE;
1015 BOOL    parse_found_group      = FALSE;
1016 uschar *percent_hack_domains   = NULL;
1017 uschar *pid_file_path          = US PID_FILE_PATH
1018                            "\0<--------------Space to patch pid_file_path->";
1019 BOOL    pipelining_enable      = TRUE;
1020 uschar *pipelining_advertise_hosts = US"*";
1021 BOOL    preserve_message_logs  = FALSE;
1022 uschar *primary_hostname       = NULL;
1023 BOOL    print_topbitchars      = FALSE;
1024 uschar  process_info[PROCESS_INFO_SIZE];
1025 int     process_info_len       = 0;
1026 uschar *process_log_path       = NULL;
1027 BOOL    prod_requires_admin    = TRUE;
1028
1029 #if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
1030 uschar *hosts_proxy            = US"";
1031 uschar *proxy_external_address = US"";
1032 int     proxy_external_port    = 0;
1033 uschar *proxy_local_address    = US"";
1034 int     proxy_local_port       = 0;
1035 BOOL    proxy_session          = FALSE;
1036 BOOL    proxy_session_failed   = FALSE;
1037 #endif
1038
1039 uschar *prvscheck_address      = NULL;
1040 uschar *prvscheck_keynum       = NULL;
1041 uschar *prvscheck_result       = NULL;
1042
1043
1044 const uschar *qualify_domain_recipient = NULL;
1045 uschar *qualify_domain_sender  = NULL;
1046 BOOL    queue_2stage           = FALSE;
1047 uschar *queue_domains          = NULL;
1048 int     queue_interval         = -1;
1049 BOOL    queue_list_requires_admin = TRUE;
1050 uschar *queue_name             = US"";
1051 BOOL    queue_only             = FALSE;
1052 uschar *queue_only_file        = NULL;
1053 int     queue_only_load        = -1;
1054 BOOL    queue_only_load_latch  = TRUE;
1055 BOOL    queue_only_override    = TRUE;
1056 BOOL    queue_only_policy      = FALSE;
1057 BOOL    queue_run_first_delivery = FALSE;
1058 BOOL    queue_run_force        = FALSE;
1059 BOOL    queue_run_in_order     = FALSE;
1060 BOOL    queue_run_local        = FALSE;
1061 uschar *queue_run_max          = US"5";
1062 pid_t   queue_run_pid          = (pid_t)0;
1063 int     queue_run_pipe         = -1;
1064 BOOL    queue_running          = FALSE;
1065 BOOL    queue_smtp             = FALSE;
1066 uschar *queue_smtp_domains     = NULL;
1067
1068 unsigned int random_seed       = 0;
1069 tree_node *ratelimiters_cmd    = NULL;
1070 tree_node *ratelimiters_conn   = NULL;
1071 tree_node *ratelimiters_mail   = NULL;
1072 uschar *raw_active_hostname    = NULL;
1073 uschar *raw_sender             = NULL;
1074 uschar **raw_recipients        = NULL;
1075 int     raw_recipients_count   = 0;
1076
1077 int     rcpt_count             = 0;
1078 int     rcpt_fail_count        = 0;
1079 int     rcpt_defer_count       = 0;
1080 gid_t   real_gid;
1081 uid_t   real_uid;
1082 BOOL    really_exim            = TRUE;
1083 BOOL    receive_call_bombout   = FALSE;
1084 int     receive_linecount      = 0;
1085 int     receive_messagecount   = 0;
1086 int     receive_timeout        = 0;
1087 int     received_count         = 0;
1088 uschar *received_for           = NULL;
1089
1090 /*  This is the default text for Received headers generated by Exim. The
1091 date  will be automatically added on the end. */
1092
1093 uschar *received_header_text   = US
1094      "Received: "
1095      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1096      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1097      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1098      "by $primary_hostname "
1099      "${if def:received_protocol {with $received_protocol}} "
1100      #ifdef SUPPORT_TLS
1101      "${if def:tls_cipher {($tls_cipher)\n\t}}"
1102      #endif
1103      "(Exim $version_number)\n\t"
1104      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1105      "id $message_exim_id"
1106      "${if def:received_for {\n\tfor $received_for}}"
1107      "\0<---------------Space to patch received_header_text->";
1108
1109 int     received_headers_max   = 30;
1110 uschar *received_protocol      = NULL;
1111 struct timeval received_time   = { 0, 0 };
1112 uschar *recipient_data         = NULL;
1113 uschar *recipient_unqualified_hosts = NULL;
1114 uschar *recipient_verify_failure = NULL;
1115 int     recipients_count       = 0;
1116 BOOL    recipients_discarded   = FALSE;
1117 recipient_item  *recipients_list = NULL;
1118 int     recipients_list_max    = 0;
1119 int     recipients_max         = 0;
1120 BOOL    recipients_max_reject  = FALSE;
1121 const pcre *regex_AUTH         = NULL;
1122 const pcre *regex_check_dns_names = NULL;
1123 const pcre *regex_From         = NULL;
1124 const pcre *regex_IGNOREQUOTA  = NULL;
1125 const pcre *regex_PIPELINING   = NULL;
1126 const pcre *regex_SIZE         = NULL;
1127 const pcre *regex_ismsgid      = NULL;
1128 const pcre *regex_smtp_code    = NULL;
1129 uschar *regex_vars[REGEX_VARS];
1130 #ifdef WHITELIST_D_MACROS
1131 const pcre *regex_whitelisted_macro = NULL;
1132 #endif
1133 #ifdef WITH_CONTENT_SCAN
1134 uschar *regex_match_string     = NULL;
1135 #endif
1136 int     remote_delivery_count  = 0;
1137 int     remote_max_parallel    = 2;
1138 uschar *remote_sort_domains    = NULL;
1139 int     retry_data_expire      = 7*24*60*60;
1140 int     retry_interval_max     = 24*60*60;
1141 int     retry_maximum_timeout  = 0;        /* set from retry config */
1142 retry_config  *retries         = NULL;
1143 uschar *return_path            = NULL;
1144 BOOL    return_path_remove     = TRUE;
1145 int     rewrite_existflags     = 0;
1146 uschar *rfc1413_hosts          = US"@[]";
1147 int     rfc1413_query_timeout  = 0;
1148 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
1149 uid_t   root_gid               = ROOT_GID;
1150 uid_t   root_uid               = ROOT_UID;
1151
1152 router_instance  *routers  = NULL;
1153 router_instance  router_defaults = {
1154     NULL,                      /* chain pointer */
1155     NULL,                      /* name */
1156     NULL,                      /* info */
1157     NULL,                      /* private options block pointer */
1158     NULL,                      /* driver name */
1159
1160     NULL,                      /* address_data */
1161 #ifdef EXPERIMENTAL_BRIGHTMAIL
1162     NULL,                      /* bmi_rule */
1163 #endif
1164     NULL,                      /* cannot_route_message */
1165     NULL,                      /* condition */
1166     NULL,                      /* current_directory */
1167     NULL,                      /* debug_string */
1168     NULL,                      /* domains */
1169     NULL,                      /* errors_to */
1170     NULL,                      /* expand_gid */
1171     NULL,                      /* expand_uid */
1172     NULL,                      /* expand_more */
1173     NULL,                      /* expand_unseen */
1174     NULL,                      /* extra_headers */
1175     NULL,                      /* fallback_hosts */
1176     NULL,                      /* home_directory */
1177     NULL,                      /* ignore_target_hosts */
1178     NULL,                      /* local_parts */
1179     NULL,                      /* pass_router_name */
1180     NULL,                      /* prefix */
1181     NULL,                      /* redirect_router_name */
1182     NULL,                      /* remove_headers */
1183     NULL,                      /* require_files */
1184     NULL,                      /* router_home_directory */
1185     US"freeze",                /* self */
1186     NULL,                      /* senders */
1187     NULL,                      /* suffix */
1188     NULL,                      /* translate_ip_address */
1189     NULL,                      /* transport_name */
1190
1191     TRUE,                      /* address_test */
1192 #ifdef EXPERIMENTAL_BRIGHTMAIL
1193     FALSE,                     /* bmi_deliver_alternate */
1194     FALSE,                     /* bmi_deliver_default */
1195     FALSE,                     /* bmi_dont_deliver */
1196 #endif
1197     TRUE,                      /* expn */
1198     FALSE,                     /* caseful_local_part */
1199     FALSE,                     /* check_local_user */
1200     FALSE,                     /* disable_logging */
1201     FALSE,                     /* fail_verify_recipient */
1202     FALSE,                     /* fail_verify_sender */
1203     FALSE,                     /* gid_set */
1204     FALSE,                     /* initgroups */
1205     TRUE_UNSET,                /* log_as_local */
1206     TRUE,                      /* more */
1207     FALSE,                     /* pass_on_timeout */
1208     FALSE,                     /* prefix_optional */
1209     TRUE,                      /* repeat_use */
1210     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1211     FALSE,                     /* same_domain_copy_routing */
1212     FALSE,                     /* self_rewrite */
1213     FALSE,                     /* suffix_optional */
1214     FALSE,                     /* verify_only */
1215     TRUE,                      /* verify_recipient */
1216     TRUE,                      /* verify_sender */
1217     FALSE,                     /* uid_set */
1218     FALSE,                     /* unseen */
1219     FALSE,                     /* dsn_lasthop */
1220
1221     self_freeze,               /* self_code */
1222     (uid_t)(-1),               /* uid */
1223     (gid_t)(-1),               /* gid */
1224
1225     NULL,                      /* fallback_hostlist */
1226     NULL,                      /* transport instance */
1227     NULL,                      /* pass_router */
1228     NULL,                      /* redirect_router */
1229
1230     { NULL, NULL },            /* dnssec_domains {require,request} */
1231 };
1232
1233 uschar *router_name            = NULL;
1234
1235 ip_address_item *running_interfaces = NULL;
1236 BOOL    running_in_test_harness = FALSE;
1237
1238 /* This is a weird one. The following string gets patched in the binary by the
1239 script that sets up a copy of Exim for running in the test harness. It seems
1240 that compilers are now clever, and share constant strings if they can.
1241 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1242 make use of the end of this string in order to save space. So the patching then
1243 wrecks this. We defeat this optimization by adding some additional characters
1244 onto the end of the string. */
1245
1246 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1247
1248 int     runrc                  = 0;
1249
1250 uschar *search_error_message   = NULL;
1251 BOOL    search_find_defer      = FALSE;
1252 uschar *self_hostname          = NULL;
1253 uschar *sender_address         = NULL;
1254 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1255 uschar *sender_address_data    = NULL;
1256 BOOL    sender_address_forced  = FALSE;
1257 uschar *sender_address_unrewritten = NULL;
1258 uschar *sender_data            = NULL;
1259 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1260 uschar *sender_fullhost        = NULL;
1261 BOOL    sender_helo_dnssec     = FALSE;
1262 uschar *sender_helo_name       = NULL;
1263 uschar **sender_host_aliases   = &no_aliases;
1264 uschar *sender_host_address    = NULL;
1265 uschar *sender_host_authenticated = NULL;
1266 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1267 BOOL    sender_host_dnssec     = FALSE;
1268 uschar *sender_host_name       = NULL;
1269 int     sender_host_port       = 0;
1270 BOOL    sender_host_notsocket  = FALSE;
1271 BOOL    sender_host_unknown    = FALSE;
1272 uschar *sender_ident           = NULL;
1273 BOOL    sender_local           = FALSE;
1274 BOOL    sender_name_forced     = FALSE;
1275 uschar *sender_rate            = NULL;
1276 uschar *sender_rate_limit      = NULL;
1277 uschar *sender_rate_period     = NULL;
1278 uschar *sender_rcvhost         = NULL;
1279 BOOL    sender_set_untrusted   = FALSE;
1280 uschar *sender_unqualified_hosts = NULL;
1281 uschar *sender_verify_failure = NULL;
1282 address_item *sender_verified_list  = NULL;
1283 address_item *sender_verified_failed = NULL;
1284 int     sender_verified_rc     = -1;
1285 BOOL    sender_verified_responded = FALSE;
1286 uschar *sending_ip_address     = NULL;
1287 int     sending_port           = -1;
1288 SIGNAL_BOOL sigalrm_seen       = FALSE;
1289 uschar **sighup_argv           = NULL;
1290 int     slow_lookup_log        = 0;     /* millisecs, zero disables */
1291 int     smtp_accept_count      = 0;
1292 BOOL    smtp_accept_keepalive  = TRUE;
1293 int     smtp_accept_max        = 20;
1294 int     smtp_accept_max_nonmail= 10;
1295 uschar *smtp_accept_max_nonmail_hosts = US"*";
1296 int     smtp_accept_max_per_connection = 1000;
1297 uschar *smtp_accept_max_per_host = NULL;
1298 int     smtp_accept_queue      = 0;
1299 int     smtp_accept_queue_per_connection = 10;
1300 int     smtp_accept_reserve    = 0;
1301 uschar *smtp_active_hostname   = NULL;
1302 BOOL    smtp_authenticated     = FALSE;
1303 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1304                              "Exim $version_number $tod_full"
1305                              "\0<---------------Space to patch smtp_banner->";
1306 BOOL    smtp_batched_input     = FALSE;
1307 BOOL    smtp_check_spool_space = TRUE;
1308 int     smtp_ch_index          = 0;
1309 uschar *smtp_cmd_argument      = NULL;
1310 uschar *smtp_cmd_buffer        = NULL;
1311 struct timeval smtp_connection_start  = {0,0};
1312 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1313 int     smtp_connect_backlog   = 20;
1314 double  smtp_delay_mail        = 0.0;
1315 double  smtp_delay_rcpt        = 0.0;
1316 BOOL    smtp_enforce_sync      = TRUE;
1317 FILE   *smtp_in                = NULL;
1318 BOOL    smtp_input             = FALSE;
1319 int     smtp_load_reserve      = -1;
1320 int     smtp_mailcmd_count     = 0;
1321 FILE   *smtp_out               = NULL;
1322 uschar *smtp_etrn_command      = NULL;
1323 BOOL    smtp_etrn_serialize    = TRUE;
1324 int     smtp_max_synprot_errors= 3;
1325 int     smtp_max_unknown_commands = 3;
1326 uschar *smtp_notquit_reason    = NULL;
1327 uschar *smtp_ratelimit_hosts   = NULL;
1328 uschar *smtp_ratelimit_mail    = NULL;
1329 uschar *smtp_ratelimit_rcpt    = NULL;
1330 uschar *smtp_read_error        = US"";
1331 int     smtp_receive_timeout   = 5*60;
1332 uschar *smtp_receive_timeout_s = NULL;
1333 uschar *smtp_reserve_hosts     = NULL;
1334 BOOL    smtp_return_error_details = FALSE;
1335 int     smtp_rlm_base          = 0;
1336 double  smtp_rlm_factor        = 0.0;
1337 int     smtp_rlm_limit         = 0;
1338 int     smtp_rlm_threshold     = INT_MAX;
1339 int     smtp_rlr_base          = 0;
1340 double  smtp_rlr_factor        = 0.0;
1341 int     smtp_rlr_limit         = 0;
1342 int     smtp_rlr_threshold     = INT_MAX;
1343 unsigned smtp_peer_options     = 0;
1344 unsigned smtp_peer_options_wrap= 0;
1345 #ifdef SUPPORT_I18N
1346 uschar *smtputf8_advertise_hosts = US"*";       /* overridden under test-harness */
1347 #endif
1348
1349 #ifdef WITH_CONTENT_SCAN
1350 uschar *spamd_address          = US"127.0.0.1 783";
1351 uschar *spam_bar               = NULL;
1352 uschar *spam_report            = NULL;
1353 uschar *spam_action            = NULL;
1354 uschar *spam_score             = NULL;
1355 uschar *spam_score_int         = NULL;
1356 #endif
1357 #ifdef EXPERIMENTAL_SPF
1358 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1359 uschar *spf_header_comment     = NULL;
1360 uschar *spf_received           = NULL;
1361 uschar *spf_result             = NULL;
1362 uschar *spf_smtp_comment       = NULL;
1363 #endif
1364
1365 BOOL    split_spool_directory  = FALSE;
1366 uschar *spool_directory        = US SPOOL_DIRECTORY
1367                            "\0<--------------Space to patch spool_directory->";
1368 BOOL    spool_file_wireformat  = FALSE;
1369 BOOL    spool_wireformat       = FALSE;
1370 #ifdef EXPERIMENTAL_SRS
1371 uschar *srs_config             = NULL;
1372 uschar *srs_db_address         = NULL;
1373 uschar *srs_db_key             = NULL;
1374 int     srs_hashlength         = 6;
1375 int     srs_hashmin            = -1;
1376 int     srs_maxage             = 31;
1377 uschar *srs_orig_recipient     = NULL;
1378 uschar *srs_orig_sender        = NULL;
1379 uschar *srs_recipient          = NULL;
1380 uschar *srs_secrets            = NULL;
1381 uschar *srs_status             = NULL;
1382 BOOL    srs_usehash            = TRUE;
1383 BOOL    srs_usetimestamp       = TRUE;
1384 #endif
1385 BOOL    strict_acl_vars        = FALSE;
1386 int     string_datestamp_offset= -1;
1387 int     string_datestamp_length= 0;
1388 int     string_datestamp_type  = -1;
1389 BOOL    strip_excess_angle_brackets = FALSE;
1390 BOOL    strip_trailing_dot     = FALSE;
1391 uschar *submission_domain      = NULL;
1392 BOOL    submission_mode        = FALSE;
1393 uschar *submission_name        = NULL;
1394 BOOL    suppress_local_fixups  = FALSE;
1395 BOOL    suppress_local_fixups_default = FALSE;
1396 BOOL    synchronous_delivery   = FALSE;
1397 BOOL    syslog_duplication     = TRUE;
1398 int     syslog_facility        = LOG_MAIL;
1399 BOOL    syslog_pid             = TRUE;
1400 uschar *syslog_processname     = US"exim";
1401 BOOL    syslog_timestamp       = TRUE;
1402 uschar *system_filter          = NULL;
1403
1404 uschar *system_filter_directory_transport = NULL;
1405 uschar *system_filter_file_transport = NULL;
1406 uschar *system_filter_pipe_transport = NULL;
1407 uschar *system_filter_reply_transport = NULL;
1408
1409 gid_t   system_filter_gid      = 0;
1410 BOOL    system_filter_gid_set  = FALSE;
1411 uid_t   system_filter_uid      = (uid_t)-1;
1412 BOOL    system_filter_uid_set  = FALSE;
1413 BOOL    system_filtering       = FALSE;
1414
1415 BOOL    tcp_fastopen_ok        = FALSE;
1416 BOOL    tcp_nodelay            = TRUE;
1417 #ifdef USE_TCP_WRAPPERS
1418 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1419 #endif
1420 int     test_harness_load_avg  = 0;
1421 int     thismessage_size_limit = 0;
1422 int     timeout_frozen_after   = 0;
1423 BOOL    timestamps_utc         = FALSE;
1424
1425 transport_instance  *transports = NULL;
1426
1427 transport_instance  transport_defaults = {
1428     NULL,                     /* chain pointer */
1429     NULL,                     /* name */
1430     NULL,                     /* info */
1431     NULL,                     /* private options block pointer */
1432     NULL,                     /* driver name */
1433     NULL,                     /* setup entry point */
1434     1,                        /* batch_max */
1435     NULL,                     /* batch_id */
1436     NULL,                     /* home_dir */
1437     NULL,                     /* current_dir */
1438     NULL,                     /* expand-multi-domain */
1439     TRUE,                     /* multi-domain */
1440     FALSE,                    /* overrides_hosts */
1441     100,                      /* max_addresses */
1442     500,                      /* connection_max_messages */
1443     FALSE,                    /* deliver_as_creator */
1444     FALSE,                    /* disable_logging */
1445     FALSE,                    /* initgroups */
1446     FALSE,                    /* uid_set */
1447     FALSE,                    /* gid_set */
1448     (uid_t)(-1),              /* uid */
1449     (gid_t)(-1),              /* gid */
1450     NULL,                     /* expand_uid */
1451     NULL,                     /* expand_gid */
1452     NULL,                     /* warn_message */
1453     NULL,                     /* shadow */
1454     NULL,                     /* shadow_condition */
1455     NULL,                     /* filter_command */
1456     NULL,                     /* add_headers */
1457     NULL,                     /* remove_headers */
1458     NULL,                     /* return_path */
1459     NULL,                     /* debug_string */
1460     NULL,                     /* max_parallel */
1461     NULL,                     /* message_size_limit */
1462     NULL,                     /* headers_rewrite */
1463     NULL,                     /* rewrite_rules */
1464     0,                        /* rewrite_existflags */
1465     300,                      /* filter_timeout */
1466     FALSE,                    /* body_only */
1467     FALSE,                    /* delivery_date_add */
1468     FALSE,                    /* envelope_to_add */
1469     FALSE,                    /* headers_only */
1470     FALSE,                    /* rcpt_include_affixes */
1471     FALSE,                    /* return_path_add */
1472     FALSE,                    /* return_output */
1473     FALSE,                    /* return_fail_output */
1474     FALSE,                    /* log_output */
1475     FALSE,                    /* log_fail_output */
1476     FALSE,                    /* log_defer_output */
1477     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1478                                  1 nor 0 so can detect unset */
1479 #ifndef DISABLE_EVENT
1480    ,NULL                      /* event_action */
1481 #endif
1482 };
1483
1484 int     transport_count;
1485 uschar *transport_name          = NULL;
1486 int     transport_newlines;
1487 const uschar **transport_filter_argv  = NULL;
1488 int     transport_filter_timeout;
1489 BOOL    transport_filter_timed_out = FALSE;
1490 int     transport_write_timeout= 0;
1491
1492 tree_node  *tree_dns_fails     = NULL;
1493 tree_node  *tree_duplicates    = NULL;
1494 tree_node  *tree_nonrecipients = NULL;
1495 tree_node  *tree_unusable      = NULL;
1496
1497 BOOL    trusted_caller         = FALSE;
1498 BOOL    trusted_config         = TRUE;
1499 gid_t  *trusted_groups         = NULL;
1500 uid_t  *trusted_users          = NULL;
1501 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1502
1503 uschar *unknown_login          = NULL;
1504 uschar *unknown_username       = NULL;
1505 uschar *untrusted_set_sender   = NULL;
1506
1507 /*  A regex for matching a "From_" line in an incoming message, in the form
1508
1509     From ph10 Fri Jan  5 12:35 GMT 1996
1510
1511 which  the "mail" commands send to the MTA (undocumented, of course), or in
1512 the  form
1513
1514     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1515
1516 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1517 Because  of variations in time formats, just match up to the minutes. That
1518 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1519 so  just require one digit for hours and minutes. The weekday is also absent
1520 in  some forms. */
1521
1522 uschar *uucp_from_pattern      = US
1523    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1524    "(?:"                                          /* Non-extracting bracket */
1525    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1526    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1527    ")"                                            /* End alternation */
1528    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1529
1530 uschar *uucp_from_sender       = US"$1";
1531
1532 uschar *verify_mode            = NULL;
1533 uschar *version_copyright      =
1534  US"Copyright (c) University of Cambridge, 1995 - 2017\n"
1535    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2017";
1536 uschar *version_date           = US"?";
1537 uschar *version_cnumber        = US"????";
1538 uschar *version_string         = US"?";
1539
1540 uschar *warn_message_file      = NULL;
1541 int     warning_count          = 0;
1542 uschar *warnmsg_delay          = NULL;
1543 uschar *warnmsg_recipients     = NULL;
1544 BOOL    write_rejectlog        = TRUE;
1545
1546
1547 /*  End of globals.c */