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