src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.9 2004/12/16 15:11:47 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 #ifdef EXPERIMENTAL_BRIGHTMAIL
 332 uschar *bmi_alt_location       = NULL;
 333 uschar *bmi_base64_tracker_verdict = NULL;
 334 uschar *bmi_base64_verdict     = NULL;
 335 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
 336 int     bmi_deliver            = 1;
 337 int     bmi_run                = 0;
 338 uschar *bmi_verdicts           = NULL;
 339 #endif
 340 int     body_linecount         = 0;
 341 int     body_zerocount         = 0;
 342 uschar *bounce_message_file    = NULL;
 343 uschar *bounce_message_text    = NULL;
 344 uschar *bounce_recipient       = NULL;
 345 BOOL    bounce_return_body     = TRUE;
 346 BOOL    bounce_return_message  = TRUE;
 347 int     bounce_return_size_limit = 100*1024;
 348 uschar *bounce_sender_authentication = NULL;
 349 int     bsmtp_transaction_linecount = 0;
 350
 351 int     callout_cache_domain_positive_expire = 7*24*60*60;
 352 int     callout_cache_domain_negative_expire = 3*60*60;
 353 int     callout_cache_positive_expire = 24*60*60;
 354 int     callout_cache_negative_expire = 2*60*60;
 355 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
 356 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
 357 int     check_log_inodes       = 0;
 358 int     check_log_space        = 0;
 359 int     check_spool_inodes     = 0;
 360 int     check_spool_space      = 0;
 361 int     clmacro_count          = 0;
 362 uschar *clmacros[MAX_CLMACROS];
 363 BOOL    config_changed         = FALSE;
 364 FILE   *config_file            = NULL;
 365 uschar *config_filename        = NULL;
 366 int     config_lineno          = 0;
 367 #ifdef CONFIGURE_GROUP
 368 gid_t   config_gid             = CONFIGURE_GROUP;
 369 #endif
 370 uschar *config_main_filelist   = US CONFIGURE_FILE
 371                          "\0<-----------Space to patch configure_filename->";
 372 uschar *config_main_filename   = NULL;
 373
 374 #ifdef CONFIGURE_OWNER
 375 uid_t   config_uid             = CONFIGURE_OWNER;
 376 #endif
 377
 378 int     connection_max_messages= -1;
 379 uschar *continue_hostname      = NULL;
 380 uschar *continue_host_address  = NULL;
 381 BOOL    continue_more          = FALSE;
 382 int     continue_sequence      = 1;
 383 uschar *continue_transport     = NULL;
 384
 385 BOOL    daemon_listen          = FALSE;
 386 uschar *daemon_smtp_port       = US"smtp";
 387 BOOL    debug_daemon           = FALSE;
 388 int     debug_fd               = -1;
 389 FILE   *debug_file             = NULL;
 390 bit_table debug_options[]      = {
 391   { US"acl",            D_acl },
 392   { US"all",            D_all },
 393   { US"auth",           D_auth },
 394   { US"deliver",        D_deliver },
 395   { US"dns",            D_dns },
 396   { US"dnsbl",          D_dnsbl },
 397   { US"exec",           D_exec },
 398   { US"expand",         D_expand },
 399   { US"filter",         D_filter },
 400   { US"hints_lookup",   D_hints_lookup },
 401   { US"host_lookup",    D_host_lookup },
 402   { US"ident",          D_ident },
 403   { US"interface",      D_interface },
 404   { US"lists",          D_lists },
 405   { US"load",           D_load },
 406   { US"local_scan",     D_local_scan },
 407   { US"lookup",         D_lookup },
 408   { US"memory",         D_memory },
 409   { US"pid",            D_pid },
 410   { US"process_info",   D_process_info },
 411   { US"queue_run",      D_queue_run },
 412   { US"receive",        D_receive },
 413   { US"resolver",       D_resolver },
 414   { US"retry",          D_retry },
 415   { US"rewrite",        D_rewrite },
 416   { US"route",          D_route },
 417   { US"timestamp",      D_timestamp },
 418   { US"tls",            D_tls },
 419   { US"transport",      D_transport },
 420   { US"uid",            D_uid },
 421   { US"verify",         D_verify }
 422 };
 423 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
 424 unsigned int debug_selector    = 0;
 425 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
 426 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
 427 BOOL    delivery_date_remove   = TRUE;
 428 uschar *deliver_address_data   = NULL;
 429 int     deliver_datafile       = -1;
 430 uschar *deliver_domain         = NULL;
 431 uschar *deliver_domain_data    = NULL;
 432 uschar *deliver_domain_orig    = NULL;
 433 uschar *deliver_domain_parent  = NULL;
 434 BOOL    deliver_drop_privilege = FALSE;
 435 BOOL    deliver_firsttime      = FALSE;
 436 BOOL    deliver_force          = FALSE;
 437 BOOL    deliver_freeze         = FALSE;
 438 int     deliver_frozen_at      = 0;
 439 uschar *deliver_home           = NULL;
 440 uschar *deliver_host           = NULL;
 441 uschar *deliver_host_address   = NULL;
 442 uschar *deliver_in_buffer      = NULL;
 443 ino_t   deliver_inode          = 0;
 444 uschar *deliver_localpart      = NULL;
 445 uschar *deliver_localpart_data = NULL;
 446 uschar *deliver_localpart_orig = NULL;
 447 uschar *deliver_localpart_parent = NULL;
 448 uschar *deliver_localpart_prefix = NULL;
 449 uschar *deliver_localpart_suffix = NULL;
 450 BOOL    deliver_force_thaw     = FALSE;
 451 BOOL    deliver_manual_thaw    = FALSE;
 452 uschar *deliver_out_buffer     = NULL;
 453 int     deliver_queue_load_max = -1;
 454 address_item  *deliver_recipients = NULL;
 455 uschar *deliver_selectstring   = NULL;
 456 BOOL    deliver_selectstring_regex = FALSE;
 457 uschar *deliver_selectstring_sender = NULL;
 458 BOOL    deliver_selectstring_sender_regex = FALSE;
 459 #ifdef WITH_OLD_DEMIME
 460 int     demime_errorlevel      = 0;
 461 int     demime_ok              = 0;
 462 uschar *demime_reason          = NULL;
 463 #endif
 464 BOOL    disable_logging        = FALSE;
 465
 466 uschar *dns_again_means_nonexist = NULL;
 467 uschar *dns_ipv4_lookup        = NULL;
 468 int     dns_retrans            = 0;
 469 int     dns_retry              = 0;
 470 uschar *dnslist_domain         = NULL;
 471 uschar *dnslist_text           = NULL;
 472 uschar *dnslist_value          = NULL;
 473 tree_node *domainlist_anchor   = NULL;
 474 int     domainlist_count       = 0;
 475 BOOL    dont_deliver           = FALSE;
 476 BOOL    dot_ends               = TRUE;
 477 BOOL    drop_cr                = FALSE;         /* No longer used */
 478
 479 BOOL    enable_dollar_recipients = FALSE;
 480 BOOL    envelope_to_remove     = TRUE;
 481 int     errno_quota            = ERRNO_QUOTA;
 482 uschar *errors_copy            = NULL;
 483 int     error_handling         = ERRORS_SENDER;
 484 uschar *errors_reply_to        = NULL;
 485 int     errors_sender_rc       = EXIT_FAILURE;
 486
 487 gid_t   exim_gid               = EXIM_GID;
 488 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
 489 uschar *exim_path              = US BIN_DIRECTORY "/exim"
 490                         "\0<---------------Space to patch exim_path->";
 491 uid_t   exim_uid               = EXIM_UID;
 492 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
 493 int     expand_forbid          = 0;
 494 int     expand_nlength[EXPAND_MAXN+1];
 495 int     expand_nmax            = -1;
 496 uschar *expand_nstring[EXPAND_MAXN+1];
 497 BOOL    expand_string_forcedfail = FALSE;
 498 uschar *expand_string_message;
 499 BOOL    extract_addresses_remove_arguments = TRUE;
 500 uschar *extra_local_interfaces = NULL;
 501
 502 #ifdef WITH_CONTENT_SCAN
 503 BOOL    fake_reject            = FALSE;
 504 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).";
 505 #endif
 506 int     filter_n[FILTER_VARIABLE_COUNT];
 507 BOOL    filter_running         = FALSE;
 508 int     filter_sn[FILTER_VARIABLE_COUNT];
 509 int     filter_test            = FTEST_NONE;
 510 uschar *filter_test_sfile      = NULL;
 511 uschar *filter_test_ufile      = NULL;
 512 uschar *filter_thisaddress     = NULL;
 513 int     finduser_retries       = 0;
 514 #ifdef WITH_OLD_DEMIME
 515 uschar *found_extension        = NULL;
 516 #endif
 517 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 518 uschar *freeze_tell            = NULL;
 519 uschar *fudged_queue_times     = US"";
 520
 521 uschar *gecos_name             = NULL;
 522 uschar *gecos_pattern          = NULL;
 523 rewrite_rule  *global_rewrite_rules = NULL;
 524
 525 uschar *headers_charset        = US HEADERS_CHARSET;
 526 int     header_insert_maxlen   = 64 * 1024;
 527 header_line  *header_last      = NULL;
 528 header_line  *header_list      = NULL;
 529 int     header_maxsize         = HEADER_MAXSIZE;
 530 int     header_line_maxsize    = 0;
 531
 532 header_name header_names[] = {
 533   { US"bcc",            3, TRUE,  htype_bcc },
 534   { US"cc",             2, TRUE,  htype_cc },
 535   { US"date",           4, TRUE,  htype_date },
 536   { US"delivery-date", 13, FALSE, htype_delivery_date },
 537   { US"envelope-to",   11, FALSE, htype_envelope_to },
 538   { US"from",           4, TRUE,  htype_from },
 539   { US"message-id",    10, TRUE,  htype_id },
 540   { US"received",       8, FALSE, htype_received },
 541   { US"reply-to",       8, FALSE, htype_reply_to },
 542   { US"return-path",   11, FALSE, htype_return_path },
 543   { US"sender",         6, TRUE,  htype_sender },
 544   { US"subject",        7, FALSE, htype_subject },
 545   { US"to",             2, TRUE,  htype_to }
 546 };
 547
 548 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 549
 550 BOOL    header_rewritten       = FALSE;
 551 uschar *helo_accept_junk_hosts = NULL;
 552 uschar *helo_allow_chars       = US"";
 553 uschar *helo_lookup_domains    = US"@ : @[]";
 554 uschar *helo_try_verify_hosts  = NULL;
 555 BOOL    helo_verified          = FALSE;
 556 uschar *helo_verify_hosts      = NULL;
 557 uschar *hex_digits             = US"0123456789abcdef";
 558 uschar *hold_domains           = NULL;
 559 BOOL    host_checking          = FALSE;
 560 BOOL    host_checking_callout  = FALSE;
 561 uschar *host_data              = NULL;
 562 BOOL    host_find_failed_syntax= FALSE;
 563 uschar *host_lookup            = NULL;
 564 BOOL    host_lookup_failed     = FALSE;
 565 uschar *host_lookup_order      = US"bydns:byaddr";
 566 uschar *host_lookup_msg        = US"";
 567 int     host_number            = 0;
 568 uschar *host_number_string     = NULL;
 569 uschar *host_reject_connection = NULL;
 570 tree_node *hostlist_anchor     = NULL;
 571 int     hostlist_count         = 0;
 572 uschar *hosts_treat_as_local   = NULL;
 573 uschar *hosts_connection_nolog = NULL;
 574
 575 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 576 BOOL    ignore_fromline_local  = FALSE;
 577 uschar *ignore_fromline_hosts  = NULL;
 578 uschar *interface_address      = NULL;
 579 int     interface_port         = -1;
 580 BOOL    is_inetd               = FALSE;
 581
 582 int     journal_fd             = -1;
 583
 584 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 585
 586 uschar *eldap_dn               = NULL;
 587 int     load_average           = -2;
 588 BOOL    local_error_message    = FALSE;
 589 BOOL    local_from_check       = TRUE;
 590 uschar *local_from_prefix      = NULL;
 591 uschar *local_from_suffix      = NULL;
 592
 593 #if HAVE_IPV6
 594 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 595 #else
 596 uschar *local_interfaces       = US"0.0.0.0";
 597 #endif
 598
 599 uschar *local_scan_data        = NULL;
 600 int     local_scan_timeout     = 5*60;
 601 BOOL    local_sender_retain    = FALSE;
 602 gid_t   local_user_gid         = (gid_t)(-1);
 603 uid_t   local_user_uid         = (uid_t)(-1);
 604
 605 tree_node *localpartlist_anchor= NULL;
 606 int     localpartlist_count    = 0;
 607 uschar *log_buffer             = NULL;
 608 unsigned int log_extra_selector = LX_default;
 609 uschar *log_file_path          = US LOG_FILE_PATH
 610                            "\0<--------------Space to patch log_file_path->";
 611
 612 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 613 are the ones that get put into log_write_selector. They can be used in calls to
 614 log_write() to test for the bit. The options with LX_xxx identifiers have
 615 values greater than 0x80000000 and are put int log_extra_selector (without the
 616 top bit). They are never used in calls to log_write(), but are tested
 617 independently. This separation became necessary when the number of log
 618 selectors was getting close to filling a 32-bit word. */
 619
 620 bit_table log_options[]        = {
 621   { US"address_rewrite",              L_address_rewrite },
 622   { US"all",                          L_all },
 623   { US"all_parents",                  L_all_parents },
 624   { US"arguments",                    LX_arguments },
 625   { US"connection_reject",            L_connection_reject },
 626   { US"delay_delivery",               L_delay_delivery },
 627   { US"deliver_time",                 LX_deliver_time },
 628   { US"delivery_size",                LX_delivery_size },
 629   { US"dnslist_defer",                L_dnslist_defer },
 630   { US"etrn",                         L_etrn },
 631   { US"host_lookup_failed",           L_host_lookup_failed },
 632   { US"ident_timeout",                LX_ident_timeout },
 633   { US"incoming_interface",           LX_incoming_interface },
 634   { US"incoming_port",                LX_incoming_port },
 635   { US"lost_incoming_connection",     L_lost_incoming_connection },
 636   { US"outgoing_port",                LX_outgoing_port },
 637   { US"queue_run",                    L_queue_run },
 638   { US"queue_time",                   LX_queue_time },
 639   { US"queue_time_overall",           LX_queue_time_overall },
 640   { US"received_recipients",          LX_received_recipients },
 641   { US"received_sender",              LX_received_sender },
 642   { US"rejected_header",              LX_rejected_header },
 643   { US"rejected_headers",             LX_rejected_header },
 644   { US"retry_defer",                  L_retry_defer },
 645   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 646   { US"sender_on_delivery",           LX_sender_on_delivery },
 647   { US"size_reject",                  L_size_reject },
 648   { US"skip_delivery",                L_skip_delivery },
 649   { US"smtp_confirmation",            LX_smtp_confirmation },
 650   { US"smtp_connection",              L_smtp_connection },
 651   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 652   { US"smtp_protocol_error",          L_smtp_protocol_error },
 653   { US"smtp_syntax_error",            L_smtp_syntax_error },
 654   { US"subject",                      LX_subject },
 655   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 656   { US"tls_cipher",                   LX_tls_cipher },
 657   { US"tls_peerdn",                   LX_tls_peerdn }
 658 };
 659
 660 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 661 unsigned int log_write_selector= L_default;
 662 uschar *log_selector_string    = NULL;
 663 FILE   *log_stderr             = NULL;
 664 BOOL    log_testing_mode       = FALSE;
 665 BOOL    log_timezone           = FALSE;
 666 uschar *login_sender_address   = NULL;
 667 int     lookup_open_max        = 25;
 668 uschar *lookup_value           = NULL;
 669
 670 macro_item  *macros            = NULL;
 671 uschar *mailstore_basename     = NULL;
 672 #ifdef WITH_CONTENT_SCAN
 673 uschar *malware_name           = NULL;  /* Virus Name */
 674 #endif
 675 int     max_username_length    = 0;
 676 int     message_age            = 0;
 677 uschar *message_body           = NULL;
 678 uschar *message_body_end       = NULL;
 679 int     message_body_size      = 0;
 680 int     message_body_visible   = 500;
 681 int     message_ended          = END_NOTSTARTED;
 682 uschar *message_headers        = NULL;
 683 uschar *message_id;
 684 uschar *message_id_domain      = NULL;
 685 uschar *message_id_text        = NULL;
 686 struct timeval message_id_tv   = { 0, 0 };
 687 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 688 uschar *message_id_external;
 689 int     message_linecount      = 0;
 690 BOOL    message_logs           = TRUE;
 691 int     message_size           = 0;
 692 uschar *message_size_limit     = US"50M";
 693 uschar  message_subdir[2]      = { 0, 0 };
 694 uschar *message_reference      = NULL;
 695
 696 /* MIME ACL expandables */
 697 #ifdef WITH_CONTENT_SCAN
 698 int     mime_anomaly_level     = NULL;
 699 uschar *mime_anomaly_text      = NULL;
 700 uschar *mime_boundary          = NULL;
 701 uschar *mime_charset           = NULL;
 702 uschar *mime_content_description = NULL;
 703 uschar *mime_content_disposition = NULL;
 704 uschar *mime_content_id        = NULL;
 705 unsigned int mime_content_size = 0;
 706 uschar *mime_content_transfer_encoding = NULL;
 707 uschar *mime_content_type      = NULL;
 708 uschar *mime_decoded_filename  = NULL;
 709 uschar *mime_filename          = NULL;
 710 int     mime_is_multipart      = 0;
 711 int     mime_is_coverletter    = 0;
 712 int     mime_is_rfc822         = 0;
 713 int     mime_part_count        = -1;
 714 #endif
 715
 716 BOOL    mua_wrapper            = FALSE;
 717
 718 uid_t  *never_users            = NULL;
 719 #ifdef WITH_CONTENT_SCAN
 720 BOOL    no_mbox_unspool        = FALSE;
 721 #endif
 722 BOOL    no_multiline_responses = FALSE;
 723
 724 uid_t   original_euid;
 725 gid_t   originator_gid;
 726 uschar *originator_login       = NULL;
 727 uschar *originator_name        = NULL;
 728 uid_t   originator_uid;
 729 uschar *override_local_interfaces = NULL;
 730 uschar *override_pid_file_path = NULL;
 731
 732 BOOL    parse_allow_group      = FALSE;
 733 BOOL    parse_found_group      = FALSE;
 734 uschar *percent_hack_domains   = NULL;
 735 uschar *pid_file_path          = US PID_FILE_PATH
 736                            "\0<--------------Space to patch pid_file_path->";
 737 uschar *pipelining_advertise_hosts = US"*";
 738 BOOL    preserve_message_logs  = FALSE;
 739 uschar *primary_hostname       = NULL;
 740 BOOL    print_topbitchars      = FALSE;
 741 uschar  process_info[PROCESS_INFO_SIZE];
 742 uschar *process_log_path       = NULL;
 743 BOOL    prod_requires_admin    = TRUE;
 744
 745 uschar *qualify_domain_recipient = NULL;
 746 uschar *qualify_domain_sender  = NULL;
 747 BOOL    queue_2stage           = FALSE;
 748 uschar *queue_domains          = NULL;
 749 int     queue_interval         = -1;
 750 BOOL    queue_list_requires_admin = TRUE;
 751 BOOL    queue_only             = FALSE;
 752 uschar *queue_only_file        = NULL;
 753 int     queue_only_load        = -1;
 754 BOOL    queue_only_override    = TRUE;
 755 BOOL    queue_only_policy      = FALSE;
 756 BOOL    queue_run_first_delivery = FALSE;
 757 BOOL    queue_run_force        = FALSE;
 758 BOOL    queue_run_in_order     = FALSE;
 759 BOOL    queue_run_local        = FALSE;
 760 int     queue_run_max          = 5;
 761 pid_t   queue_run_pid          = (pid_t)0;
 762 int     queue_run_pipe         = -1;
 763 BOOL    queue_running          = FALSE;
 764 BOOL    queue_smtp             = FALSE;
 765 uschar *queue_smtp_domains     = NULL;
 766
 767 unsigned int random_seed       = 0;
 768 uschar *raw_active_hostname    = NULL;
 769 uschar *raw_sender             = NULL;
 770 uschar **raw_recipients        = NULL;
 771 int     raw_recipients_count   = 0;
 772
 773 int     rcpt_count             = 0;
 774 int     rcpt_fail_count        = 0;
 775 int     rcpt_defer_count       = 0;
 776 gid_t   real_gid;
 777 uid_t   real_uid;
 778 BOOL    really_exim            = TRUE;
 779 BOOL    receive_call_bombout   = FALSE;
 780 int     receive_linecount      = 0;
 781 int     receive_messagecount   = 0;
 782 int     receive_timeout        = 0;
 783 int     received_count         = 0;
 784 uschar *received_for           = NULL;
 785
 786 /*  This is the default text for Received headers generated by Exim. The
 787 date  will be automatically added on the end. */
 788
 789 uschar *received_header_text   = US
 790      "Received: "
 791      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 792      "{${if def:sender_ident {from $sender_ident }}"
 793      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 794      "by $primary_hostname "
 795      "${if def:received_protocol {with $received_protocol}} "
 796      #ifdef SUPPORT_TLS
 797      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 798      #endif
 799      "(Exim $version_number)\n\t"
 800      "id $message_id"
 801      "${if def:received_for {\n\tfor $received_for}}"
 802      "\0<---------------Space to patch received_header_text->";
 803
 804 int     received_headers_max   = 30;
 805 uschar *received_protocol      = NULL;
 806 int     received_time          = 0;
 807 uschar *recipient_data         = NULL;
 808 uschar *recipient_unqualified_hosts = NULL;
 809 uschar *recipient_verify_failure = NULL;
 810 int     recipients_count       = 0;
 811 BOOL    recipients_discarded   = FALSE;
 812 recipient_item  *recipients_list = NULL;
 813 int     recipients_list_max    = 0;
 814 int     recipients_max         = 0;
 815 BOOL    recipients_max_reject  = FALSE;
 816 const pcre *regex_AUTH         = NULL;
 817 const pcre *regex_check_dns_names = NULL;
 818 const pcre *regex_From         = NULL;
 819 const pcre *regex_PIPELINING   = NULL;
 820 const pcre *regex_SIZE         = NULL;
 821 const pcre *regex_ismsgid      = NULL;
 822 #ifdef WITH_CONTENT_SCAN
 823 uschar *regex_match_string     = NULL;
 824 #endif
 825 int     remote_delivery_count  = 0;
 826 int     remote_max_parallel    = 2;
 827 uschar *remote_sort_domains    = NULL;
 828 int     retry_data_expire      = 7*24*60*60;
 829 int     retry_interval_max     = 24*60*60;
 830 int     retry_maximum_timeout  = 0;        /* set from retry config */
 831 retry_config  *retries         = NULL;
 832 uschar *return_path            = NULL;
 833 BOOL    return_path_remove     = TRUE;
 834 int     rewrite_existflags     = 0;
 835 uschar *rfc1413_hosts          = US"*";
 836 int     rfc1413_query_timeout  = 30;
 837 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 838 uid_t   root_uid               = ROOT_UID;
 839
 840 router_instance  *routers  = NULL;
 841 router_instance  router_defaults = {
 842     NULL,                      /* chain pointer */
 843     NULL,                      /* name */
 844     NULL,                      /* info */
 845     NULL,                      /* private options block pointer */
 846     NULL,                      /* driver name */
 847
 848     NULL,                      /* address_data */
 849 #ifdef EXPERIMENTAL_BRIGHTMAIL
 850     NULL,                      /* bmi_rule */
 851 #endif
 852     NULL,                      /* cannot_route_message */
 853     NULL,                      /* condition */
 854     NULL,                      /* current_directory */
 855     NULL,                      /* debug_string */
 856     NULL,                      /* domains */
 857     NULL,                      /* errors_to */
 858     NULL,                      /* expand_gid */
 859     NULL,                      /* expand_uid */
 860     NULL,                      /* expand_more */
 861     NULL,                      /* expand_unseen */
 862     NULL,                      /* extra_headers */
 863     NULL,                      /* fallback_hosts */
 864     NULL,                      /* home_directory */
 865     NULL,                      /* ignore_target_hosts */
 866     NULL,                      /* local_parts */
 867     NULL,                      /* pass_router_name */
 868     NULL,                      /* prefix */
 869     NULL,                      /* redirect_router_name */
 870     NULL,                      /* remove_headers */
 871     NULL,                      /* require_files */
 872     NULL,                      /* router_home_directory */
 873     US"freeze",                /* self */
 874     NULL,                      /* senders */
 875     NULL,                      /* suffix */
 876     NULL,                      /* translate_ip_address */
 877     NULL,                      /* transport_name */
 878
 879     TRUE,                      /* address_test */
 880 #ifdef EXPERIMENTAL_BRIGHTMAIL
 881     FALSE,                     /* bmi_deliver_alternate */
 882     FALSE,                     /* bmi_deliver_default */
 883     FALSE,                     /* bmi_dont_deliver */
 884 #endif
 885     TRUE,                      /* expn */
 886     FALSE,                     /* caseful_local_part */
 887     FALSE,                     /* check_local_user */
 888     FALSE,                     /* disable_logging */
 889     FALSE,                     /* fail_verify_recipient */
 890     FALSE,                     /* fail_verify_sender */
 891     FALSE,                     /* gid_set */
 892     FALSE,                     /* initgroups */
 893     TRUE_UNSET,                /* log_as_local */
 894     TRUE,                      /* more */
 895     FALSE,                     /* pass_on_timeout */
 896     FALSE,                     /* prefix_optional */
 897     TRUE,                      /* repeat_use */
 898     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 899     FALSE,                     /* same_domain_copy_routing */
 900     FALSE,                     /* self_rewrite */
 901     FALSE,                     /* suffix_optional */
 902     FALSE,                     /* verify_only */
 903     TRUE,                      /* verify_recipient */
 904     TRUE,                      /* verify_sender */
 905     FALSE,                     /* uid_set */
 906     FALSE,                     /* unseen */
 907
 908     self_freeze,               /* self_code */
 909     (uid_t)(-1),               /* uid */
 910     (gid_t)(-1),               /* gid */
 911
 912     NULL,                      /* fallback_hostlist */
 913     NULL,                      /* transport instance */
 914     NULL,                      /* pass_router */
 915     NULL                       /* redirect_router */
 916 };
 917
 918 ip_address_item *running_interfaces = NULL;
 919 BOOL    running_in_test_harness = FALSE;
 920
 921 /* This is a weird one. The following string gets patched in the binary by the
 922 script that sets up a copy of Exim for running in the test harness. It seems
 923 that compilers are now clever, and share constant strings if they can.
 924 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 925 make use of the end of this string in order to save space. So the patching then
 926 wrecks this. We default this optimization by adding some additional characters
 927 onto the end of the string. */
 928
 929 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 930
 931 int     runrc                  = 0;
 932
 933 uschar *search_error_message   = NULL;
 934 BOOL    search_find_defer      = FALSE;
 935 uschar *self_hostname          = NULL;
 936 uschar *sender_address         = NULL;
 937 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 938 uschar *sender_address_data    = NULL;
 939 BOOL    sender_address_forced  = FALSE;
 940 uschar *sender_address_unrewritten = NULL;
 941 uschar *sender_data            = NULL;
 942 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 943 uschar *sender_fullhost        = NULL;
 944 uschar *sender_helo_name       = NULL;
 945 uschar **sender_host_aliases   = &no_aliases;
 946 uschar *sender_host_address    = NULL;
 947 uschar *sender_host_authenticated = NULL;
 948 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 949 uschar *sender_host_name       = NULL;
 950 int     sender_host_port       = 0;
 951 BOOL    sender_host_notsocket  = FALSE;
 952 BOOL    sender_host_unknown    = FALSE;
 953 uschar *sender_ident           = NULL;
 954 BOOL    sender_local           = FALSE;
 955 uschar *sender_rcvhost         = NULL;
 956 BOOL    sender_set_untrusted   = FALSE;
 957 uschar *sender_unqualified_hosts = NULL;
 958 uschar *sender_verify_failure = NULL;
 959 address_item *sender_verified_list  = NULL;
 960 address_item *sender_verified_failed = NULL;
 961 int     sender_verified_rc     = -1;
 962 BOOL    sender_verified_responded = FALSE;
 963 volatile  BOOL sigalrm_seen    = FALSE;
 964 uschar **sighup_argv           = NULL;
 965 int     smtp_accept_count      = 0;
 966 BOOL    smtp_accept_keepalive  = TRUE;
 967 int     smtp_accept_max        = 20;
 968 int     smtp_accept_max_nonmail= 10;
 969 uschar *smtp_accept_max_nonmail_hosts = US"*";
 970 int     smtp_accept_max_per_connection = 1000;
 971 uschar *smtp_accept_max_per_host = NULL;
 972 int     smtp_accept_queue      = 0;
 973 int     smtp_accept_queue_per_connection = 10;
 974 int     smtp_accept_reserve    = 0;
 975 uschar *smtp_active_hostname   = NULL;
 976 BOOL    smtp_authenticated     = FALSE;
 977 uschar *smtp_banner            = US"$primary_hostname ESMTP "
 978                              "Exim $version_number $tod_full"
 979                              "\0<---------------Space to patch smtp_banner->";
 980 BOOL    smtp_batched_input     = FALSE;
 981 BOOL    smtp_check_spool_space = TRUE;
 982 uschar *smtp_command_argument  = NULL;
 983 int     smtp_connect_backlog   = 20;
 984 double  smtp_delay_mail        = 0.0;
 985 double  smtp_delay_rcpt        = 0.0;
 986 BOOL    smtp_enforce_sync      = TRUE;
 987 FILE   *smtp_in                = NULL;
 988 BOOL    smtp_input             = FALSE;
 989 int     smtp_load_reserve      = -1;
 990 int     smtp_mailcmd_count     = 0;
 991 FILE   *smtp_out               = NULL;
 992 uschar *smtp_etrn_command      = NULL;
 993 BOOL    smtp_etrn_serialize    = TRUE;
 994 int     smtp_max_synprot_errors= 3;
 995 int     smtp_max_unknown_commands = 3;
 996 uschar *smtp_ratelimit_hosts   = NULL;
 997 uschar *smtp_ratelimit_mail    = NULL;
 998 uschar *smtp_ratelimit_rcpt    = NULL;
 999 uschar *smtp_read_error        = US"";
1000 int     smtp_receive_timeout   = 5*60;
1001 uschar *smtp_reserve_hosts     = NULL;
1002 BOOL    smtp_return_error_details = FALSE;
1003 int     smtp_rlm_base          = 0;
1004 double  smtp_rlm_factor        = 0.0;
1005 int     smtp_rlm_limit         = 0;
1006 int     smtp_rlm_threshold     = INT_MAX;
1007 int     smtp_rlr_base          = 0;
1008 double  smtp_rlr_factor        = 0.0;
1009 int     smtp_rlr_limit         = 0;
1010 int     smtp_rlr_threshold     = INT_MAX;
1011 BOOL    smtp_use_pipelining    = FALSE;
1012 BOOL    smtp_use_size          = FALSE;
1013
1014 #ifdef WITH_CONTENT_SCAN
1015 uschar *spamd_address          = US"127.0.0.1 783";
1016 uschar *spam_bar               = NULL;
1017 uschar *spam_report            = NULL;
1018 uschar *spam_score             = NULL;
1019 uschar *spam_score_int         = NULL;
1020 #endif
1021 #ifdef EXPERIMENTAL_SPF
1022 uschar *spf_header_comment     = NULL;
1023 uschar *spf_received           = NULL;
1024 uschar *spf_result             = NULL;
1025 uschar *spf_smtp_comment       = NULL;
1026 #endif
1027
1028 BOOL    split_spool_directory  = FALSE;
1029 uschar *spool_directory        = US SPOOL_DIRECTORY
1030                            "\0<--------------Space to patch spool_directory->";
1031 #ifdef EXPERIMENTAL_SRS
1032 uschar *srs_config             = NULL;
1033 uschar *srs_db_address         = NULL;
1034 uschar *srs_db_key             = NULL;
1035 uschar *srs_orig_recipient     = NULL;
1036 uschar *srs_orig_sender        = NULL;
1037 uschar *srs_recipient          = NULL;
1038 uschar *srs_status             = NULL;
1039 #endif
1040 int     string_datestamp_offset= -1;
1041 BOOL    strip_excess_angle_brackets = FALSE;
1042 BOOL    strip_trailing_dot     = FALSE;
1043 uschar *submission_domain      = NULL;
1044 BOOL    submission_mode        = FALSE;
1045 BOOL    synchronous_delivery   = FALSE;
1046 BOOL    syslog_duplication     = TRUE;
1047 int     syslog_facility        = LOG_MAIL;
1048 uschar *syslog_processname     = US"exim";
1049 BOOL    syslog_timestamp       = TRUE;
1050 uschar *system_filter          = NULL;
1051
1052 uschar *system_filter_directory_transport = NULL;
1053 uschar *system_filter_file_transport = NULL;
1054 uschar *system_filter_pipe_transport = NULL;
1055 uschar *system_filter_reply_transport = NULL;
1056
1057 gid_t   system_filter_gid      = 0;
1058 BOOL    system_filter_gid_set  = FALSE;
1059 uid_t   system_filter_uid      = 0;
1060 BOOL    system_filter_uid_set  = FALSE;
1061 BOOL    system_filtering       = FALSE;
1062
1063 BOOL    tcp_nodelay            = TRUE;
1064 int     thismessage_size_limit = 0;
1065 int     timeout_frozen_after   = 0;
1066 BOOL    timestamps_utc         = FALSE;
1067
1068 transport_instance  *transports = NULL;
1069
1070 transport_instance  transport_defaults = {
1071     NULL,                     /* chain pointer */
1072     NULL,                     /* name */
1073     NULL,                     /* info */
1074     NULL,                     /* private options block pointer */
1075     NULL,                     /* driver name */
1076     NULL,                     /* setup entry point */
1077     1,                        /* batch_max */
1078     NULL,                     /* batch_id */
1079     NULL,                     /* home_dir */
1080     NULL,                     /* current_dir */
1081     TRUE,                     /* multi-domain */
1082     FALSE,                    /* overrides_hosts */
1083     100,                      /* max_addresses */
1084     500,                      /* connection_max_messages */
1085     FALSE,                    /* deliver_as_creator */
1086     FALSE,                    /* disable_logging */
1087     FALSE,                    /* initgroups */
1088     FALSE,                    /* uid_set */
1089     FALSE,                    /* gid_set */
1090     (uid_t)(-1),              /* uid */
1091     (gid_t)(-1),              /* gid */
1092     NULL,                     /* expand_uid */
1093     NULL,                     /* expand_gid */
1094     NULL,                     /* warn_message */
1095     NULL,                     /* shadow */
1096     NULL,                     /* shadow_condition */
1097     NULL,                     /* filter_command */
1098     NULL,                     /* add_headers */
1099     NULL,                     /* remove_headers */
1100     NULL,                     /* return_path */
1101     NULL,                     /* debug_string */
1102     NULL,                     /* message_size_limit */
1103     NULL,                     /* headers_rewrite */
1104     NULL,                     /* rewrite_rules */
1105     0,                        /* rewrite_existflags */
1106     300,                      /* filter_timeout */
1107     FALSE,                    /* body_only */
1108     FALSE,                    /* delivery_date_add */
1109     FALSE,                    /* envelope_to_add */
1110     FALSE,                    /* headers_only */
1111     FALSE,                    /* rcpt_include_affixes */
1112     FALSE,                    /* return_path_add */
1113     FALSE,                    /* return_output */
1114     FALSE,                    /* return_fail_output */
1115     FALSE,                    /* log_output */
1116     FALSE,                    /* log_fail_output */
1117     FALSE,                    /* log_defer_output */
1118     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1119                                  1 nor 0 so can detect unset */
1120 };
1121
1122 int     transport_count;
1123 uschar **transport_filter_argv  = NULL;
1124 int     transport_filter_timeout;
1125 int     transport_write_timeout= 0;
1126
1127 tree_node  *tree_dns_fails     = NULL;
1128 tree_node  *tree_duplicates    = NULL;
1129 tree_node  *tree_nonrecipients = NULL;
1130 tree_node  *tree_unusable      = NULL;
1131
1132 BOOL    trusted_caller         = FALSE;
1133 gid_t  *trusted_groups         = NULL;
1134 uid_t  *trusted_users          = NULL;
1135 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1136
1137 uschar *unknown_login          = NULL;
1138 uschar *unknown_username       = NULL;
1139 uschar *untrusted_set_sender   = NULL;
1140
1141 /*  A regex for matching a "From_" line in an incoming message, in the form
1142
1143     From ph10 Fri Jan  5 12:35 GMT 1996
1144
1145 which  the "mail" commands send to the MTA (undocumented, of course), or in
1146 the  form
1147
1148     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1149
1150 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1151 Because  of variations in time formats, just match up to the minutes. That
1152 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1153 so  just require one digit for hours and minutes. The weekday is also absent
1154 in  some forms. */
1155
1156 uschar *uucp_from_pattern      = US
1157    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1158    "(?:"                                          /* Non-extracting bracket */
1159    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1160    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1161    ")"                                            /* End alternation */
1162    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1163
1164 uschar *uucp_from_sender       = US"$1";
1165
1166 uschar *warn_message_file      = NULL;
1167 uschar *warnmsg_delay          = NULL;
1168 uschar *warnmsg_recipients     = NULL;
1169 BOOL    write_rejectlog        = TRUE;
1170
1171 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1172 uschar *version_date           = US"?";
1173 uschar *version_cnumber        = US"????";
1174 uschar *version_string         = US"?";
1175
1176 int     warning_count          = 0;
1177
1178 /*  End of globals.c */