src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.6.2.4 2004/12/10 09:24:38 tom Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2004 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* All the global variables are defined together in this one module, so
  11 that they are easy to find. */
  12
  13 #include "exim.h"
  14
  15
  16 /* The OSF1 linker puts out a worrying warning if any sections contain no
  17 executable code. It says
  18
  19 Warning: Linking some objects which contain exception information sections
  20         and some which do not. This may cause fatal runtime exception handling
  21         problems.
  22
  23 As this may cause people to worry needlessly, include a dummy function here
  24 to stop the message from appearing. Make it reference itself to stop picky
  25 compilers complaining that it is unused, and put in a dummy argument to stop
  26 even pickier compilers complaining about infinite loops. */
  27
  28 static void dummy(int x) { dummy(x-1); }
  29
  30
  31 /* Generic options for auths, all of which live inside auth_instance
  32 data blocks and hence have the opt_public flag set. */
  33
  34 optionlist optionlist_auths[] = {
  35   { "driver",        opt_stringptr | opt_public,
  36                  (void *)(offsetof(auth_instance, driver_name)) },
  37   { "public_name",   opt_stringptr | opt_public,
  38                  (void *)(offsetof(auth_instance, public_name)) },
  39   { "server_advertise_condition", opt_stringptr | opt_public,
  40                  (void *)(offsetof(auth_instance, advertise_condition))},
  41   { "server_debug_print", opt_stringptr | opt_public,
  42                  (void *)(offsetof(auth_instance, server_debug_string)) },
  43   { "server_mail_auth_condition", opt_stringptr | opt_public,
  44                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
  45   { "server_set_id", opt_stringptr | opt_public,
  46                  (void *)(offsetof(auth_instance, set_id)) }
  47 };
  48
  49 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
  50
  51 /* An empty host aliases list. */
  52
  53 uschar *no_aliases             = NULL;
  54
  55
  56 /* For comments on these variables, see globals.h. I'm too idle to
  57 duplicate them here... */
  58
  59 #ifdef EXIM_PERL
  60 uschar *opt_perl_startup       = NULL;
  61 BOOL    opt_perl_at_start      = FALSE;
  62 BOOL    opt_perl_started       = FALSE;
  63 #endif
  64
  65 #ifdef LOOKUP_IBASE
  66 uschar *ibase_servers          = NULL;
  67 #endif
  68
  69 #ifdef LOOKUP_LDAP
  70 uschar *eldap_default_servers  = NULL;
  71 int     eldap_version          = -1;
  72 #endif
  73
  74 #ifdef LOOKUP_MYSQL
  75 uschar *mysql_servers          = NULL;
  76 #endif
  77
  78 #ifdef LOOKUP_ORACLE
  79 uschar *oracle_servers         = NULL;
  80 #endif
  81
  82 #ifdef LOOKUP_PGSQL
  83 uschar *pgsql_servers          = NULL;
  84 #endif
  85
  86 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  87 BOOL    move_frozen_messages   = FALSE;
  88 #endif
  89
  90 /* These variables are outside the #ifdef because it keeps the code less
  91 cluttered in several places (e.g. during logging) if we can always refer to
  92 them. Also, the tls_ variables are now always visible. */
  93
  94 BOOL    tls_active             = -1;
  95 BOOL    tls_certificate_verified = FALSE;
  96 uschar *tls_cipher             = NULL;
  97 BOOL    tls_on_connect         = FALSE;
  98 uschar *tls_on_connect_ports   = NULL;
  99 uschar *tls_peerdn             = NULL;
 100
 101 #ifdef SUPPORT_TLS
 102 const pcre *regex_STARTTLS     = NULL;
 103 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
 104 uschar *tls_certificate        = NULL;
 105 uschar *tls_crl                = NULL;
 106 uschar *tls_dhparam            = NULL;
 107 BOOL    tls_offered            = FALSE;
 108 uschar *tls_privatekey         = NULL;
 109 BOOL    tls_remember_esmtp     = FALSE;
 110 uschar *tls_require_ciphers    = NULL;
 111 uschar *tls_try_verify_hosts   = NULL;
 112 uschar *tls_verify_certificates= NULL;
 113 uschar *tls_verify_hosts       = NULL;
 114 #endif
 115
 116
 117 /* Input-reading functions for messages, so we can use special ones for
 118 incoming TCP/IP. The defaults use stdin. We never need these for any
 119 stand-alone tests. */
 120
 121 #ifndef STAND_ALONE
 122 int (*receive_getc)(void)      = stdin_getc;
 123 int (*receive_ungetc)(int)     = stdin_ungetc;
 124 int (*receive_feof)(void)      = stdin_feof;
 125 int (*receive_ferror)(void)    = stdin_ferror;
 126 #endif
 127
 128
 129 /* List of per-address expansion variables for clearing and saving/restoring
 130 when verifying one address while routing/verifying another. We have to have
 131 the size explicit, because it is referenced from more than one module. */
 132
 133 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
 134   &deliver_address_data,
 135   &deliver_domain,
 136   &deliver_domain_data,
 137   &deliver_domain_orig,
 138   &deliver_domain_parent,
 139   &deliver_localpart,
 140   &deliver_localpart_data,
 141   &deliver_localpart_orig,
 142   &deliver_localpart_parent,
 143   &deliver_localpart_prefix,
 144   &deliver_localpart_suffix,
 145   (uschar **)(&deliver_recipients),
 146   &deliver_host,
 147   &deliver_home,
 148   &address_file,
 149   &address_pipe,
 150   &self_hostname,
 151   NULL };
 152
 153 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
 154
 155 /* General global variables */
 156
 157 tree_node *acl_anchor          = NULL;
 158 uschar *acl_not_smtp           = NULL;
 159 uschar *acl_smtp_auth          = NULL;
 160 uschar *acl_smtp_connect       = NULL;
 161 uschar *acl_smtp_data          = NULL;
 162 uschar *acl_smtp_etrn          = NULL;
 163 uschar *acl_smtp_expn          = NULL;
 164 uschar *acl_smtp_helo          = NULL;
 165 uschar *acl_smtp_mail          = NULL;
 166 uschar *acl_smtp_mailauth      = NULL;
 167 #ifdef WITH_CONTENT_SCAN
 168 uschar *acl_smtp_mime          = NULL;
 169 #endif
 170 uschar *acl_smtp_predata       = NULL;
 171 uschar *acl_smtp_quit          = NULL;
 172 uschar *acl_smtp_rcpt          = NULL;
 173 uschar *acl_smtp_starttls      = NULL;
 174 uschar *acl_smtp_vrfy          = NULL;
 175 BOOL    acl_temp_details       = FALSE;
 176 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
 177 uschar *acl_verify_message     = NULL;
 178 header_line *acl_warn_headers  = NULL;
 179 string_item *acl_warn_logged   = NULL;
 180
 181 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
 182 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
 183
 184 uschar *acl_wherenames[]       = { US"RCPT",
 185                                    US"MAIL",
 186                                    US"PREDATA",
 187 #ifdef WITH_CONTENT_SCAN
 188                                    US"MIME",
 189 #endif
 190                                    US"DATA",
 191                                    US"non-SMTP",
 192                                    US"AUTH",
 193                                    US"connection",
 194                                    US"ETRN",
 195                                    US"EXPN",
 196                                    US"EHLO or HELO",
 197                                    US"MAILAUTH",
 198                                    US"QUIT",
 199                                    US"STARTTLS",
 200                                    US"VRFY"
 201                                  };
 202
 203 int     acl_wherecodes[]       = { 550,     /* RCPT */
 204                                    550,     /* MAIL */
 205                                    550,     /* PREDATA */
 206 #ifdef WITH_CONTENT_SCAN
 207                                    550,     /* MIME */
 208 #endif
 209                                    550,     /* DATA */
 210                                    0,       /* not SMTP; not relevant */
 211                                    503,     /* AUTH */
 212                                    550,     /* connect */
 213                                    458,     /* ETRN */
 214                                    550,     /* EXPN */
 215                                    550,     /* HELO/EHLO */
 216                                    0,       /* MAILAUTH; not relevant */
 217                                    0,       /* QUIT; not relevant */
 218                                    550,     /* STARTTLS */
 219                                    252      /* VRFY */
 220                                  };
 221
 222 BOOL    active_local_from_check = FALSE;
 223 BOOL    active_local_sender_retain = FALSE;
 224 BOOL    accept_8bitmime        = FALSE;
 225 address_item  *addr_duplicate  = NULL;
 226
 227 address_item address_defaults = {
 228   NULL,                 /* next */
 229   NULL,                 /* parent */
 230   NULL,                 /* first */
 231   NULL,                 /* dupof */
 232   NULL,                 /* start_router */
 233   NULL,                 /* router */
 234   NULL,                 /* transport */
 235   NULL,                 /* host_list */
 236   NULL,                 /* host_used */
 237   NULL,                 /* fallback_hosts */
 238   NULL,                 /* reply */
 239   NULL,                 /* retries */
 240   NULL,                 /* address */
 241   NULL,                 /* unique */
 242   NULL,                 /* cc_local_part */
 243   NULL,                 /* lc_local_part */
 244   NULL,                 /* local_part */
 245   NULL,                 /* prefix */
 246   NULL,                 /* suffix */
 247   NULL,                 /* domain */
 248   NULL,                 /* address_retry_key */
 249   NULL,                 /* domain_retry_key */
 250   NULL,                 /* current_dir */
 251   NULL,                 /* home_dir */
 252   NULL,                 /* message */
 253   NULL,                 /* user_message */
 254   NULL,                 /* onetime_parent */
 255   NULL,                 /* pipe_expandn */
 256   NULL,                 /* return_filename */
 257   NULL,                 /* self_hostname */
 258   NULL,                 /* shadow_message */
 259   #ifdef SUPPORT_TLS
 260   NULL,                 /* cipher */
 261   NULL,                 /* peerdn */
 262   #endif
 263   (uid_t)(-1),          /* uid */
 264   (gid_t)(-1),          /* gid */
 265   0,                    /* flags */
 266   { 0 },                /* domain_cache - any larger array should be zeroed */
 267   { 0 },                /* localpart_cache - ditto */
 268   -1,                   /* mode */
 269   0,                    /* more_errno */
 270   ERRNO_UNKNOWNERROR,   /* basic_errno */
 271   0,                    /* child_count */
 272   -1,                   /* return_file */
 273   SPECIAL_NONE,         /* special_action */
 274   DEFER,                /* transport_return */
 275   {                     /* fields that are propagated to children */
 276     NULL,               /* address_data */
 277     NULL,               /* domain_data */
 278     NULL,               /* localpart_data */
 279     NULL,               /* errors_address */
 280     NULL,               /* extra_headers */
 281     NULL,               /* remove_headers */
 282   }
 283 };
 284
 285 uschar *address_file           = NULL;
 286 uschar *address_pipe           = NULL;
 287 BOOL    address_test_mode      = FALSE;
 288 tree_node *addresslist_anchor  = NULL;
 289 int     addresslist_count      = 0;
 290 gid_t  *admin_groups           = NULL;
 291 BOOL    admin_user             = FALSE;
 292 BOOL    allow_domain_literals  = FALSE;
 293 BOOL    allow_mx_to_ip         = FALSE;
 294 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
 295 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
 296 BOOL    allow_utf8_domains     = FALSE;
 297 uschar *authenticated_id       = NULL;
 298 uschar *authenticated_sender   = NULL;
 299 BOOL    authentication_failed  = FALSE;
 300 auth_instance  *auths          = NULL;
 301 uschar *auth_advertise_hosts   = US"*";
 302 auth_instance auth_defaults    = {
 303     NULL,                      /* chain pointer */
 304     NULL,                      /* name */
 305     NULL,                      /* info */
 306     NULL,                      /* private options block pointer */
 307     NULL,                      /* driver_name */
 308     NULL,                      /* advertise_condition */
 309     NULL,                      /* public_name */
 310     NULL,                      /* set_id */
 311     NULL,                      /* server_mail_auth_condition */
 312     NULL,                      /* server_debug_string */
 313     FALSE,                     /* client */
 314     FALSE,                     /* server */
 315     FALSE                      /* advertised */
 316 };
 317
 318 uschar *auth_defer_msg         = US"reason not recorded";
 319 uschar *auth_defer_user_msg    = US"";
 320 int     auto_thaw              = 0;
 321 #ifdef WITH_CONTENT_SCAN
 322 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
 323 #endif
 324
 325 BOOL    background_daemon      = TRUE;
 326 uschar *base62_chars=
 327     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 328 uschar *bi_command             = NULL;
 329 uschar *big_buffer             = NULL;
 330 int     big_buffer_size        = BIG_BUFFER_SIZE;
 331 int     body_linecount         = 0;
 332 int     body_zerocount         = 0;
 333 uschar *bounce_message_file    = NULL;
 334 uschar *bounce_message_text    = NULL;
 335 uschar *bounce_recipient       = NULL;
 336 BOOL    bounce_return_body     = TRUE;
 337 BOOL    bounce_return_message  = TRUE;
 338 int     bounce_return_size_limit = 100*1024;
 339 uschar *bounce_sender_authentication = NULL;
 340 int     bsmtp_transaction_linecount = 0;
 341
 342 int     callout_cache_domain_positive_expire = 7*24*60*60;
 343 int     callout_cache_domain_negative_expire = 3*60*60;
 344 int     callout_cache_positive_expire = 24*60*60;
 345 int     callout_cache_negative_expire = 2*60*60;
 346 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 347 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 348 int     check_log_inodes       = 0;
 349 int     check_log_space        = 0;
 350 int     check_spool_inodes     = 0;
 351 int     check_spool_space      = 0;
 352 int     clmacro_count          = 0;
 353 uschar *clmacros[MAX_CLMACROS];
 354 BOOL    config_changed         = FALSE;
 355 FILE   *config_file            = NULL;
 356 uschar *config_filename        = NULL;
 357 int     config_lineno          = 0;
 358 #ifdef CONFIGURE_GROUP
 359 gid_t   config_gid             = CONFIGURE_GROUP;
 360 #endif
 361 uschar *config_main_filelist   = US CONFIGURE_FILE
 362                          "\0<-----------Space to patch configure_filename->";
 363 uschar *config_main_filename   = NULL;
 364
 365 #ifdef CONFIGURE_OWNER
 366 uid_t   config_uid             = CONFIGURE_OWNER;
 367 #endif
 368
 369 int     connection_max_messages= -1;
 370 uschar *continue_hostname      = NULL;
 371 uschar *continue_host_address  = NULL;
 372 BOOL    continue_more          = FALSE;
 373 int     continue_sequence      = 1;
 374 uschar *continue_transport     = NULL;
 375
 376 BOOL    daemon_listen          = FALSE;
 377 uschar *daemon_smtp_port       = US"smtp";
 378 BOOL    debug_daemon           = FALSE;
 379 int     debug_fd               = -1;
 380 FILE   *debug_file             = NULL;
 381 bit_table debug_options[]      = {
 382   { US"acl",            D_acl },
 383   { US"all",            D_all },
 384   { US"auth",           D_auth },
 385   { US"deliver",        D_deliver },
 386   { US"dns",            D_dns },
 387   { US"dnsbl",          D_dnsbl },
 388   { US"exec",           D_exec },
 389   { US"expand",         D_expand },
 390   { US"filter",         D_filter },
 391   { US"hints_lookup",   D_hints_lookup },
 392   { US"host_lookup",    D_host_lookup },
 393   { US"ident",          D_ident },
 394   { US"interface",      D_interface },
 395   { US"lists",          D_lists },
 396   { US"load",           D_load },
 397   { US"local_scan",     D_local_scan },
 398   { US"lookup",         D_lookup },
 399   { US"memory",         D_memory },
 400   { US"pid",            D_pid },
 401   { US"process_info",   D_process_info },
 402   { US"queue_run",      D_queue_run },
 403   { US"receive",        D_receive },
 404   { US"resolver",       D_resolver },
 405   { US"retry",          D_retry },
 406   { US"rewrite",        D_rewrite },
 407   { US"route",          D_route },
 408   { US"timestamp",      D_timestamp },
 409   { US"tls",            D_tls },
 410   { US"transport",      D_transport },
 411   { US"uid",            D_uid },
 412   { US"verify",         D_verify }
 413 };
 414 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 415 unsigned int debug_selector    = 0;
 416 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 417 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 418 BOOL    delivery_date_remove   = TRUE;
 419 uschar *deliver_address_data   = NULL;
 420 int     deliver_datafile       = -1;
 421 uschar *deliver_domain         = NULL;
 422 uschar *deliver_domain_data    = NULL;
 423 uschar *deliver_domain_orig    = NULL;
 424 uschar *deliver_domain_parent  = NULL;
 425 BOOL    deliver_drop_privilege = FALSE;
 426 BOOL    deliver_firsttime      = FALSE;
 427 BOOL    deliver_force          = FALSE;
 428 BOOL    deliver_freeze         = FALSE;
 429 int     deliver_frozen_at      = 0;
 430 uschar *deliver_home           = NULL;
 431 uschar *deliver_host           = NULL;
 432 uschar *deliver_host_address   = NULL;
 433 uschar *deliver_in_buffer      = NULL;
 434 ino_t   deliver_inode          = 0;
 435 uschar *deliver_localpart      = NULL;
 436 uschar *deliver_localpart_data = NULL;
 437 uschar *deliver_localpart_orig = NULL;
 438 uschar *deliver_localpart_parent = NULL;
 439 uschar *deliver_localpart_prefix = NULL;
 440 uschar *deliver_localpart_suffix = NULL;
 441 BOOL    deliver_force_thaw     = FALSE;
 442 BOOL    deliver_manual_thaw    = FALSE;
 443 uschar *deliver_out_buffer     = NULL;
 444 int     deliver_queue_load_max = -1;
 445 address_item  *deliver_recipients = NULL;
 446 uschar *deliver_selectstring   = NULL;
 447 BOOL    deliver_selectstring_regex = FALSE;
 448 uschar *deliver_selectstring_sender = NULL;
 449 BOOL    deliver_selectstring_sender_regex = FALSE;
 450 #ifdef WITH_OLD_DEMIME
 451 int     demime_errorlevel      = 0;
 452 int     demime_ok              = 0;
 453 uschar *demime_reason          = NULL;
 454 #endif
 455 BOOL    disable_logging        = FALSE;
 456
 457 uschar *dns_again_means_nonexist = NULL;
 458 uschar *dns_ipv4_lookup        = NULL;
 459 int     dns_retrans            = 0;
 460 int     dns_retry              = 0;
 461 uschar *dnslist_domain         = NULL;
 462 uschar *dnslist_text           = NULL;
 463 uschar *dnslist_value          = NULL;
 464 tree_node *domainlist_anchor   = NULL;
 465 int     domainlist_count       = 0;
 466 BOOL    dont_deliver           = FALSE;
 467 BOOL    dot_ends               = TRUE;
 468 BOOL    drop_cr                = FALSE;         /* No longer used */
 469
 470 BOOL    enable_dollar_recipients = FALSE;
 471 BOOL    envelope_to_remove     = TRUE;
 472 int     errno_quota            = ERRNO_QUOTA;
 473 uschar *errors_copy            = NULL;
 474 int     error_handling         = ERRORS_SENDER;
 475 uschar *errors_reply_to        = NULL;
 476 int     errors_sender_rc       = EXIT_FAILURE;
 477
 478 gid_t   exim_gid               = EXIM_GID;
 479 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 480 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 481                         "\0<---------------Space to patch exim_path->";
 482 uid_t   exim_uid               = EXIM_UID;
 483 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 484 int     expand_forbid          = 0;
 485 int     expand_nlength[EXPAND_MAXN+1];
 486 int     expand_nmax            = -1;
 487 uschar *expand_nstring[EXPAND_MAXN+1];
 488 BOOL    expand_string_forcedfail = FALSE;
 489 uschar *expand_string_message;
 490 BOOL    extract_addresses_remove_arguments = TRUE;
 491 uschar *extra_local_interfaces = NULL;
 492
 493 #ifdef WITH_CONTENT_SCAN
 494 BOOL    fake_reject            = FALSE;
 495 uschar *fake_reject_text       = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legit message, it may still be delivered to the target recipient(s).";
 496 #endif
 497 int     filter_n[FILTER_VARIABLE_COUNT];
 498 BOOL    filter_running         = FALSE;
 499 int     filter_sn[FILTER_VARIABLE_COUNT];
 500 uschar *filter_test            = NULL;
 501 uschar *filter_thisaddress     = NULL;
 502 int     finduser_retries       = 0;
 503 #ifdef WITH_OLD_DEMIME
 504 uschar *found_extension        = NULL;
 505 #endif
 506 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 507 uschar *freeze_tell            = NULL;
 508 uschar *fudged_queue_times     = US"";
 509
 510 uschar *gecos_name             = NULL;
 511 uschar *gecos_pattern          = NULL;
 512 rewrite_rule  *global_rewrite_rules = NULL;
 513
 514 uschar *headers_charset        = US HEADERS_CHARSET;
 515 int     header_insert_maxlen   = 64 * 1024;
 516 header_line  *header_last      = NULL;
 517 header_line  *header_list      = NULL;
 518 int     header_maxsize         = HEADER_MAXSIZE;
 519 int     header_line_maxsize    = 0;
 520
 521 header_name header_names[] = {
 522   { US"bcc",            3, TRUE,  htype_bcc },
 523   { US"cc",             2, TRUE,  htype_cc },
 524   { US"date",           4, TRUE,  htype_date },
 525   { US"delivery-date", 13, FALSE, htype_delivery_date },
 526   { US"envelope-to",   11, FALSE, htype_envelope_to },
 527   { US"from",           4, TRUE,  htype_from },
 528   { US"message-id",    10, TRUE,  htype_id },
 529   { US"received",       8, FALSE, htype_received },
 530   { US"reply-to",       8, FALSE, htype_reply_to },
 531   { US"return-path",   11, FALSE, htype_return_path },
 532   { US"sender",         6, TRUE,  htype_sender },
 533   { US"subject",        7, FALSE, htype_subject },
 534   { US"to",             2, TRUE,  htype_to }
 535 };
 536
 537 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 538
 539 BOOL    header_rewritten       = FALSE;
 540 uschar *helo_accept_junk_hosts = NULL;
 541 uschar *helo_allow_chars       = US"";
 542 uschar *helo_lookup_domains    = US"@ : @[]";
 543 uschar *helo_try_verify_hosts  = NULL;
 544 BOOL    helo_verified          = FALSE;
 545 uschar *helo_verify_hosts      = NULL;
 546 uschar *hex_digits             = US"0123456789abcdef";
 547 uschar *hold_domains           = NULL;
 548 BOOL    host_checking          = FALSE;
 549 BOOL    host_checking_callout  = FALSE;
 550 uschar *host_data              = NULL;
 551 BOOL    host_find_failed_syntax= FALSE;
 552 uschar *host_lookup            = NULL;
 553 BOOL    host_lookup_failed     = FALSE;
 554 uschar *host_lookup_order      = US"bydns:byaddr";
 555 uschar *host_lookup_msg        = US"";
 556 int     host_number            = 0;
 557 uschar *host_number_string     = NULL;
 558 uschar *host_reject_connection = NULL;
 559 tree_node *hostlist_anchor     = NULL;
 560 int     hostlist_count         = 0;
 561 uschar *hosts_treat_as_local   = NULL;
 562 uschar *hosts_connection_nolog = NULL;
 563
 564 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 565 BOOL    ignore_fromline_local  = FALSE;
 566 uschar *ignore_fromline_hosts  = NULL;
 567 uschar *interface_address      = NULL;
 568 int     interface_port         = -1;
 569 BOOL    is_inetd               = FALSE;
 570
 571 int     journal_fd             = -1;
 572
 573 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 574
 575 uschar *eldap_dn               = NULL;
 576 int     load_average           = -2;
 577 BOOL    local_error_message    = FALSE;
 578 BOOL    local_from_check       = TRUE;
 579 uschar *local_from_prefix      = NULL;
 580 uschar *local_from_suffix      = NULL;
 581
 582 #if HAVE_IPV6
 583 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 584 #else
 585 uschar *local_interfaces       = US"0.0.0.0";
 586 #endif
 587
 588 uschar *local_scan_data        = NULL;
 589 int     local_scan_timeout     = 5*60;
 590 BOOL    local_sender_retain    = FALSE;
 591 gid_t   local_user_gid         = (gid_t)(-1);
 592 uid_t   local_user_uid         = (uid_t)(-1);
 593
 594 tree_node *localpartlist_anchor= NULL;
 595 int     localpartlist_count    = 0;
 596 uschar *log_buffer             = NULL;
 597 unsigned int log_extra_selector = LX_default;
 598 uschar *log_file_path          = US LOG_FILE_PATH
 599                            "\0<--------------Space to patch log_file_path->";
 600
 601 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 602 are the ones that get put into log_write_selector. They can be used in calls to
 603 log_write() to test for the bit. The options with LX_xxx identifiers have
 604 values greater than 0x80000000 and are put int log_extra_selector (without the
 605 top bit). They are never used in calls to log_write(), but are tested
 606 independently. This separation became necessary when the number of log
 607 selectors was getting close to filling a 32-bit word. */
 608
 609 bit_table log_options[]        = {
 610   { US"address_rewrite",              L_address_rewrite },
 611   { US"all",                          L_all },
 612   { US"all_parents",                  L_all_parents },
 613   { US"arguments",                    LX_arguments },
 614   { US"connection_reject",            L_connection_reject },
 615   { US"delay_delivery",               L_delay_delivery },
 616   { US"deliver_time",                 LX_deliver_time },
 617   { US"delivery_size",                LX_delivery_size },
 618   { US"dnslist_defer",                L_dnslist_defer },
 619   { US"etrn",                         L_etrn },
 620   { US"host_lookup_failed",           L_host_lookup_failed },
 621   { US"ident_timeout",                LX_ident_timeout },
 622   { US"incoming_interface",           LX_incoming_interface },
 623   { US"incoming_port",                LX_incoming_port },
 624   { US"lost_incoming_connection",     L_lost_incoming_connection },
 625   { US"outgoing_port",                LX_outgoing_port },
 626   { US"queue_run",                    L_queue_run },
 627   { US"queue_time",                   LX_queue_time },
 628   { US"received_recipients",          LX_received_recipients },
 629   { US"received_sender",              LX_received_sender },
 630   { US"rejected_header",              LX_rejected_header },
 631   { US"rejected_headers",             LX_rejected_header },
 632   { US"retry_defer",                  L_retry_defer },
 633   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 634   { US"sender_on_delivery",           LX_sender_on_delivery },
 635   { US"size_reject",                  L_size_reject },
 636   { US"skip_delivery",                L_skip_delivery },
 637   { US"smtp_confirmation",            LX_smtp_confirmation },
 638   { US"smtp_connection",              L_smtp_connection },
 639   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 640   { US"smtp_protocol_error",          L_smtp_protocol_error },
 641   { US"smtp_syntax_error",            L_smtp_syntax_error },
 642   { US"subject",                      LX_subject },
 643   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 644   { US"tls_cipher",                   LX_tls_cipher },
 645   { US"tls_peerdn",                   LX_tls_peerdn }
 646 };
 647
 648 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 649 unsigned int log_write_selector= L_default;
 650 uschar *log_selector_string    = NULL;
 651 FILE   *log_stderr             = NULL;
 652 BOOL    log_testing_mode       = FALSE;
 653 BOOL    log_timezone           = FALSE;
 654 uschar *login_sender_address   = NULL;
 655 int     lookup_open_max        = 25;
 656 uschar *lookup_value           = NULL;
 657
 658 macro_item  *macros            = NULL;
 659 uschar *mailstore_basename     = NULL;
 660 #ifdef WITH_CONTENT_SCAN
 661 uschar *malware_name           = NULL;  /* Virus Name */
 662 #endif
 663 int     max_username_length    = 0;
 664 int     message_age            = 0;
 665 uschar *message_body           = NULL;
 666 uschar *message_body_end       = NULL;
 667 int     message_body_size      = 0;
 668 int     message_body_visible   = 500;
 669 int     message_ended          = END_NOTSTARTED;
 670 uschar *message_headers        = NULL;
 671 uschar *message_id;
 672 uschar *message_id_domain      = NULL;
 673 uschar *message_id_text        = NULL;
 674 struct timeval message_id_tv   = { 0, 0 };
 675 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 676 uschar *message_id_external;
 677 int     message_linecount      = 0;
 678 BOOL    message_logs           = TRUE;
 679 int     message_size           = 0;
 680 uschar *message_size_limit     = US"50M";
 681 uschar  message_subdir[2]      = { 0, 0 };
 682 uschar *message_reference      = NULL;
 683
 684 /* MIME ACL expandables */
 685 #ifdef WITH_CONTENT_SCAN
 686 uschar *mime_anomaly_level     = NULL;
 687 uschar *mime_anomaly_text      = NULL;
 688 uschar *mime_boundary          = NULL;
 689 uschar *mime_charset           = NULL;
 690 uschar *mime_content_description = NULL;
 691 uschar *mime_content_disposition = NULL;
 692 uschar *mime_content_id        = NULL;
 693 unsigned int mime_content_size = 0;
 694 uschar *mime_content_transfer_encoding = NULL;
 695 uschar *mime_content_type      = NULL;
 696 uschar *mime_decoded_filename  = NULL;
 697 uschar *mime_filename          = NULL;
 698 int     mime_is_multipart      = 0;
 699 int     mime_is_coverletter    = 0;
 700 int     mime_is_rfc822         = 0;
 701 int     mime_part_count        = -1;
 702 #endif
 703
 704 BOOL    mua_wrapper            = FALSE;
 705
 706 uid_t  *never_users            = NULL;
 707 #ifdef WITH_CONTENT_SCAN
 708 BOOL    no_mbox_unspool        = FALSE;
 709 #endif
 710 BOOL    no_multiline_responses = FALSE;
 711
 712 uid_t   original_euid;
 713 gid_t   originator_gid;
 714 uschar *originator_login       = NULL;
 715 uschar *originator_name        = NULL;
 716 uid_t   originator_uid;
 717 uschar *override_local_interfaces = NULL;
 718 uschar *override_pid_file_path = NULL;
 719
 720 BOOL    parse_allow_group      = FALSE;
 721 BOOL    parse_found_group      = FALSE;
 722 uschar *percent_hack_domains   = NULL;
 723 uschar *pid_file_path          = US PID_FILE_PATH
 724                            "\0<--------------Space to patch pid_file_path->";
 725 uschar *pipelining_advertise_hosts = US"*";
 726 BOOL    preserve_message_logs  = FALSE;
 727 uschar *primary_hostname       = NULL;
 728 BOOL    print_topbitchars      = FALSE;
 729 uschar  process_info[PROCESS_INFO_SIZE];
 730 uschar *process_log_path       = NULL;
 731 BOOL    prod_requires_admin    = TRUE;
 732
 733 uschar *qualify_domain_recipient = NULL;
 734 uschar *qualify_domain_sender  = NULL;
 735 BOOL    queue_2stage           = FALSE;
 736 uschar *queue_domains          = NULL;
 737 int     queue_interval         = -1;
 738 BOOL    queue_list_requires_admin = TRUE;
 739 BOOL    queue_only             = FALSE;
 740 uschar *queue_only_file        = NULL;
 741 int     queue_only_load        = -1;
 742 BOOL    queue_only_override    = TRUE;
 743 BOOL    queue_only_policy      = FALSE;
 744 BOOL    queue_run_first_delivery = FALSE;
 745 BOOL    queue_run_force        = FALSE;
 746 BOOL    queue_run_in_order     = FALSE;
 747 BOOL    queue_run_local        = FALSE;
 748 int     queue_run_max          = 5;
 749 pid_t   queue_run_pid          = (pid_t)0;
 750 int     queue_run_pipe         = -1;
 751 BOOL    queue_running          = FALSE;
 752 BOOL    queue_smtp             = FALSE;
 753 uschar *queue_smtp_domains     = NULL;
 754
 755 unsigned int random_seed       = 0;
 756 uschar *raw_active_hostname    = NULL;
 757 uschar *raw_sender             = NULL;
 758 uschar **raw_recipients        = NULL;
 759 int     raw_recipients_count   = 0;
 760
 761 int     rcpt_count             = 0;
 762 int     rcpt_fail_count        = 0;
 763 int     rcpt_defer_count       = 0;
 764 gid_t   real_gid;
 765 uid_t   real_uid;
 766 BOOL    really_exim            = TRUE;
 767 BOOL    receive_call_bombout   = FALSE;
 768 int     receive_linecount      = 0;
 769 int     receive_messagecount   = 0;
 770 int     receive_timeout        = 0;
 771 int     received_count         = 0;
 772 uschar *received_for           = NULL;
 773
 774 /*  This is the default text for Received headers generated by Exim. The
 775 date  will be automatically added on the end. */
 776
 777 uschar *received_header_text   = US
 778      "Received: "
 779      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 780      "{${if def:sender_ident {from $sender_ident }}"
 781      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 782      "by $primary_hostname "
 783      "${if def:received_protocol {with $received_protocol}} "
 784      #ifdef SUPPORT_TLS
 785      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 786      #endif
 787      "(Exim $version_number)\n\t"
 788      "id $message_id"
 789      "${if def:received_for {\n\tfor $received_for}}"
 790      "\0<---------------Space to patch received_header_text->";
 791
 792 int     received_headers_max   = 30;
 793 uschar *received_protocol      = NULL;
 794 int     received_time          = 0;
 795 uschar *recipient_data         = NULL;
 796 uschar *recipient_unqualified_hosts = NULL;
 797 uschar *recipient_verify_failure = NULL;
 798 int     recipients_count       = 0;
 799 BOOL    recipients_discarded   = FALSE;
 800 recipient_item  *recipients_list = NULL;
 801 int     recipients_list_max    = 0;
 802 int     recipients_max         = 0;
 803 BOOL    recipients_max_reject  = FALSE;
 804 const pcre *regex_AUTH         = NULL;
 805 const pcre *regex_check_dns_names = NULL;
 806 const pcre *regex_From         = NULL;
 807 const pcre *regex_PIPELINING   = NULL;
 808 const pcre *regex_SIZE         = NULL;
 809 const pcre *regex_ismsgid      = NULL;
 810 #ifdef WITH_CONTENT_SCAN
 811 uschar *regex_match_string     = NULL;
 812 #endif
 813 int     remote_delivery_count  = 0;
 814 int     remote_max_parallel    = 2;
 815 uschar *remote_sort_domains    = NULL;
 816 int     retry_data_expire      = 7*24*60*60;
 817 int     retry_interval_max     = 24*60*60;
 818 int     retry_maximum_timeout  = 0;        /* set from retry config */
 819 retry_config  *retries         = NULL;
 820 uschar *return_path            = NULL;
 821 BOOL    return_path_remove     = TRUE;
 822 int     rewrite_existflags     = 0;
 823 uschar *rfc1413_hosts          = US"*";
 824 int     rfc1413_query_timeout  = 30;
 825 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 826 uid_t   root_uid               = ROOT_UID;
 827
 828 router_instance  *routers  = NULL;
 829 router_instance  router_defaults = {
 830     NULL,                      /* chain pointer */
 831     NULL,                      /* name */
 832     NULL,                      /* info */
 833     NULL,                      /* private options block pointer */
 834     NULL,                      /* driver name */
 835
 836     NULL,                      /* address_data */
 837     NULL,                      /* cannot_route_message */
 838     NULL,                      /* condition */
 839     NULL,                      /* current_directory */
 840     NULL,                      /* debug_string */
 841     NULL,                      /* domains */
 842     NULL,                      /* errors_to */
 843     NULL,                      /* expand_gid */
 844     NULL,                      /* expand_uid */
 845     NULL,                      /* expand_more */
 846     NULL,                      /* expand_unseen */
 847     NULL,                      /* extra_headers */
 848     NULL,                      /* fallback_hosts */
 849     NULL,                      /* home_directory */
 850     NULL,                      /* ignore_target_hosts */
 851     NULL,                      /* local_parts */
 852     NULL,                      /* pass_router_name */
 853     NULL,                      /* prefix */
 854     NULL,                      /* redirect_router_name */
 855     NULL,                      /* remove_headers */
 856     NULL,                      /* require_files */
 857     NULL,                      /* router_home_directory */
 858     US"freeze",                /* self */
 859     NULL,                      /* senders */
 860     NULL,                      /* suffix */
 861     NULL,                      /* translate_ip_address */
 862     NULL,                      /* transport_name */
 863
 864     TRUE,                      /* address_test */
 865     TRUE,                      /* expn */
 866     FALSE,                     /* caseful_local_part */
 867     FALSE,                     /* check_local_user */
 868     FALSE,                     /* disable_logging */
 869     FALSE,                     /* fail_verify_recipient */
 870     FALSE,                     /* fail_verify_sender */
 871     FALSE,                     /* gid_set */
 872     FALSE,                     /* initgroups */
 873     TRUE_UNSET,                /* log_as_local */
 874     TRUE,                      /* more */
 875     FALSE,                     /* pass_on_timeout */
 876     FALSE,                     /* prefix_optional */
 877     TRUE,                      /* repeat_use */
 878     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 879     FALSE,                     /* same_domain_copy_routing */
 880     FALSE,                     /* self_rewrite */
 881     FALSE,                     /* suffix_optional */
 882     FALSE,                     /* verify_only */
 883     TRUE,                      /* verify_recipient */
 884     TRUE,                      /* verify_sender */
 885     FALSE,                     /* uid_set */
 886     FALSE,                     /* unseen */
 887
 888     self_freeze,               /* self_code */
 889     (uid_t)(-1),               /* uid */
 890     (gid_t)(-1),               /* gid */
 891
 892     NULL,                      /* fallback_hostlist */
 893     NULL,                      /* transport instance */
 894     NULL,                      /* pass_router */
 895     NULL                       /* redirect_router */
 896 };
 897
 898 ip_address_item *running_interfaces = NULL;
 899 BOOL    running_in_test_harness = FALSE;
 900
 901 /* This is a weird one. The following string gets patched in the binary by the
 902 script that sets up a copy of Exim for running in the test harness. It seems
 903 that compilers are now clever, and share constant strings if they can.
 904 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 905 make use of the end of this string in order to save space. So the patching then
 906 wrecks this. We default this optimization by adding some additional characters
 907 onto the end of the string. */
 908
 909 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 910
 911 int     runrc                  = 0;
 912
 913 uschar *search_error_message   = NULL;
 914 BOOL    search_find_defer      = FALSE;
 915 uschar *self_hostname          = NULL;
 916 uschar *sender_address         = NULL;
 917 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 918 uschar *sender_address_data    = NULL;
 919 BOOL    sender_address_forced  = FALSE;
 920 uschar *sender_address_unrewritten = NULL;
 921 uschar *sender_data            = NULL;
 922 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 923 uschar *sender_fullhost        = NULL;
 924 uschar *sender_helo_name       = NULL;
 925 uschar **sender_host_aliases   = &no_aliases;
 926 uschar *sender_host_address    = NULL;
 927 uschar *sender_host_authenticated = NULL;
 928 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 929 uschar *sender_host_name       = NULL;
 930 int     sender_host_port       = 0;
 931 BOOL    sender_host_notsocket  = FALSE;
 932 BOOL    sender_host_unknown    = FALSE;
 933 uschar *sender_ident           = NULL;
 934 BOOL    sender_local           = FALSE;
 935 uschar *sender_rcvhost         = NULL;
 936 BOOL    sender_set_untrusted   = FALSE;
 937 uschar *sender_unqualified_hosts = NULL;
 938 uschar *sender_verify_failure = NULL;
 939 address_item *sender_verified_list  = NULL;
 940 address_item *sender_verified_failed = NULL;
 941 int     sender_verified_rc     = -1;
 942 BOOL    sender_verified_responded = FALSE;
 943 volatile  BOOL sigalrm_seen    = FALSE;
 944 uschar **sighup_argv           = NULL;
 945 int     smtp_accept_count      = 0;
 946 BOOL    smtp_accept_keepalive  = TRUE;
 947 int     smtp_accept_max        = 20;
 948 int     smtp_accept_max_nonmail= 10;
 949 uschar *smtp_accept_max_nonmail_hosts = US"*";
 950 int     smtp_accept_max_per_connection = 1000;
 951 uschar *smtp_accept_max_per_host = NULL;
 952 int     smtp_accept_queue      = 0;
 953 int     smtp_accept_queue_per_connection = 10;
 954 int     smtp_accept_reserve    = 0;
 955 uschar *smtp_active_hostname   = NULL;
 956 BOOL    smtp_authenticated     = FALSE;
 957 uschar *smtp_banner            = US"$primary_hostname ESMTP "
 958                              "Exim $version_number $tod_full"
 959                              "\0<---------------Space to patch smtp_banner->";
 960 BOOL    smtp_batched_input     = FALSE;
 961 BOOL    smtp_check_spool_space = TRUE;
 962 uschar *smtp_command_argument  = NULL;
 963 int     smtp_connect_backlog   = 20;
 964 double  smtp_delay_mail        = 0.0;
 965 double  smtp_delay_rcpt        = 0.0;
 966 BOOL    smtp_enforce_sync      = TRUE;
 967 FILE   *smtp_in                = NULL;
 968 BOOL    smtp_input             = FALSE;
 969 int     smtp_load_reserve      = -1;
 970 int     smtp_mailcmd_count     = 0;
 971 FILE   *smtp_out               = NULL;
 972 uschar *smtp_etrn_command      = NULL;
 973 BOOL    smtp_etrn_serialize    = TRUE;
 974 int     smtp_max_synprot_errors= 3;
 975 int     smtp_max_unknown_commands = 3;
 976 uschar *smtp_ratelimit_hosts   = NULL;
 977 uschar *smtp_ratelimit_mail    = NULL;
 978 uschar *smtp_ratelimit_rcpt    = NULL;
 979 uschar *smtp_read_error        = US"";
 980 int     smtp_receive_timeout   = 5*60;
 981 uschar *smtp_reserve_hosts     = NULL;
 982 BOOL    smtp_return_error_details = FALSE;
 983 int     smtp_rlm_base          = 0;
 984 double  smtp_rlm_factor        = 0.0;
 985 int     smtp_rlm_limit         = 0;
 986 int     smtp_rlm_threshold     = INT_MAX;
 987 int     smtp_rlr_base          = 0;
 988 double  smtp_rlr_factor        = 0.0;
 989 int     smtp_rlr_limit         = 0;
 990 int     smtp_rlr_threshold     = INT_MAX;
 991 BOOL    smtp_use_pipelining    = FALSE;
 992 BOOL    smtp_use_size          = FALSE;
 993
 994 #ifdef WITH_CONTENT_SCAN
 995 uschar *spamd_address          = US"127.0.0.1 783";
 996 uschar *spam_bar               = NULL;
 997 uschar *spam_report            = NULL;
 998 uschar *spam_score             = NULL;
 999 uschar *spam_score_int         = NULL;
1000 #endif
1001
1002 BOOL    split_spool_directory  = FALSE;
1003 uschar *spool_directory        = US SPOOL_DIRECTORY
1004                            "\0<--------------Space to patch spool_directory->";
1005 int     string_datestamp_offset= -1;
1006 BOOL    strip_excess_angle_brackets = FALSE;
1007 BOOL    strip_trailing_dot     = FALSE;
1008 uschar *submission_domain      = NULL;
1009 BOOL    submission_mode        = FALSE;
1010 BOOL    synchronous_delivery   = FALSE;
1011 BOOL    syslog_duplication     = TRUE;
1012 int     syslog_facility        = LOG_MAIL;
1013 uschar *syslog_processname     = US"exim";
1014 BOOL    syslog_timestamp       = TRUE;
1015 uschar *system_filter          = NULL;
1016
1017 uschar *system_filter_directory_transport = NULL;
1018 uschar *system_filter_file_transport = NULL;
1019 uschar *system_filter_pipe_transport = NULL;
1020 uschar *system_filter_reply_transport = NULL;
1021
1022 gid_t   system_filter_gid      = 0;
1023 BOOL    system_filter_gid_set  = FALSE;
1024 uid_t   system_filter_uid      = 0;
1025 BOOL    system_filter_uid_set  = FALSE;
1026 BOOL    system_filtering       = FALSE;
1027
1028 BOOL    tcp_nodelay            = TRUE;
1029 int     thismessage_size_limit = 0;
1030 int     timeout_frozen_after   = 0;
1031 BOOL    timestamps_utc         = FALSE;
1032
1033 transport_instance  *transports = NULL;
1034
1035 transport_instance  transport_defaults = {
1036     NULL,                     /* chain pointer */
1037     NULL,                     /* name */
1038     NULL,                     /* info */
1039     NULL,                     /* private options block pointer */
1040     NULL,                     /* driver name */
1041     NULL,                     /* setup entry point */
1042     1,                        /* batch_max */
1043     NULL,                     /* batch_id */
1044     NULL,                     /* home_dir */
1045     NULL,                     /* current_dir */
1046     TRUE,                     /* multi-domain */
1047     FALSE,                    /* overrides_hosts */
1048     100,                      /* max_addresses */
1049     500,                      /* connection_max_messages */
1050     FALSE,                    /* deliver_as_creator */
1051     FALSE,                    /* disable_logging */
1052     FALSE,                    /* initgroups */
1053     FALSE,                    /* uid_set */
1054     FALSE,                    /* gid_set */
1055     (uid_t)(-1),              /* uid */
1056     (gid_t)(-1),              /* gid */
1057     NULL,                     /* expand_uid */
1058     NULL,                     /* expand_gid */
1059     NULL,                     /* warn_message */
1060     NULL,                     /* shadow */
1061     NULL,                     /* shadow_condition */
1062     NULL,                     /* filter_command */
1063     NULL,                     /* add_headers */
1064     NULL,                     /* remove_headers */
1065     NULL,                     /* return_path */
1066     NULL,                     /* debug_string */
1067     NULL,                     /* message_size_limit */
1068     NULL,                     /* headers_rewrite */
1069     NULL,                     /* rewrite_rules */
1070     0,                        /* rewrite_existflags */
1071     300,                      /* filter_timeout */
1072     FALSE,                    /* body_only */
1073     FALSE,                    /* delivery_date_add */
1074     FALSE,                    /* envelope_to_add */
1075     FALSE,                    /* headers_only */
1076     FALSE,                    /* rcpt_include_affixes */
1077     FALSE,                    /* return_path_add */
1078     FALSE,                    /* return_output */
1079     FALSE,                    /* return_fail_output */
1080     FALSE,                    /* log_output */
1081     FALSE,                    /* log_fail_output */
1082     FALSE,                    /* log_defer_output */
1083     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1084                                  1 nor 0 so can detect unset */
1085 };
1086
1087 int     transport_count;
1088 uschar **transport_filter_argv  = NULL;
1089 int     transport_filter_timeout;
1090 int     transport_write_timeout= 0;
1091
1092 tree_node  *tree_dns_fails     = NULL;
1093 tree_node  *tree_duplicates    = NULL;
1094 tree_node  *tree_nonrecipients = NULL;
1095 tree_node  *tree_unusable      = NULL;
1096
1097 BOOL    trusted_caller         = FALSE;
1098 gid_t  *trusted_groups         = NULL;
1099 uid_t  *trusted_users          = NULL;
1100 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1101
1102 uschar *unknown_login          = NULL;
1103 uschar *unknown_username       = NULL;
1104 uschar *untrusted_set_sender   = NULL;
1105
1106 /*  A regex for matching a "From_" line in an incoming message, in the form
1107
1108     From ph10 Fri Jan  5 12:35 GMT 1996
1109
1110 which  the "mail" commands send to the MTA (undocumented, of course), or in
1111 the  form
1112
1113     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1114
1115 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1116 Because  of variations in time formats, just match up to the minutes. That
1117 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1118 so  just require one digit for hours and minutes. The weekday is also absent
1119 in  some forms. */
1120
1121 uschar *uucp_from_pattern      = US
1122    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1123    "(?:"                                          /* Non-extracting bracket */
1124    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1125    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1126    ")"                                            /* End alternation */
1127    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1128
1129 uschar *uucp_from_sender       = US"$1";
1130
1131 uschar *warn_message_file      = NULL;
1132 uschar *warnmsg_delay          = NULL;
1133 uschar *warnmsg_recipients     = NULL;
1134 BOOL    write_rejectlog        = TRUE;
1135
1136 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1137 uschar *version_date           = US"?";
1138 uschar *version_cnumber        = US"????";
1139 uschar *version_string         = US"?";
1140
1141 int     warning_count          = 0;
1142
1143 /*  End of globals.c */