src/src/globals.c

   1 /* $Cambridge: exim/src/src/globals.c,v 1.14 2005/01/12 14:41:12 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2005 */
   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 BOOL    fake_reject            = FALSE;
 503 uschar *fake_reject_text       = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legitimate message, it may still be delivered to the target recipient(s).";
 504 int     filter_n[FILTER_VARIABLE_COUNT];
 505 BOOL    filter_running         = FALSE;
 506 int     filter_sn[FILTER_VARIABLE_COUNT];
 507 int     filter_test            = FTEST_NONE;
 508 uschar *filter_test_sfile      = NULL;
 509 uschar *filter_test_ufile      = NULL;
 510 uschar *filter_thisaddress     = NULL;
 511 int     finduser_retries       = 0;
 512 #ifdef WITH_OLD_DEMIME
 513 uschar *found_extension        = NULL;
 514 #endif
 515 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
 516 uschar *freeze_tell            = NULL;
 517 uschar *fudged_queue_times     = US"";
 518
 519 uschar *gecos_name             = NULL;
 520 uschar *gecos_pattern          = NULL;
 521 rewrite_rule  *global_rewrite_rules = NULL;
 522
 523 uschar *headers_charset        = US HEADERS_CHARSET;
 524 int     header_insert_maxlen   = 64 * 1024;
 525 header_line  *header_last      = NULL;
 526 header_line  *header_list      = NULL;
 527 int     header_maxsize         = HEADER_MAXSIZE;
 528 int     header_line_maxsize    = 0;
 529
 530 header_name header_names[] = {
 531   { US"bcc",            3, TRUE,  htype_bcc },
 532   { US"cc",             2, TRUE,  htype_cc },
 533   { US"date",           4, TRUE,  htype_date },
 534   { US"delivery-date", 13, FALSE, htype_delivery_date },
 535   { US"envelope-to",   11, FALSE, htype_envelope_to },
 536   { US"from",           4, TRUE,  htype_from },
 537   { US"message-id",    10, TRUE,  htype_id },
 538   { US"received",       8, FALSE, htype_received },
 539   { US"reply-to",       8, FALSE, htype_reply_to },
 540   { US"return-path",   11, FALSE, htype_return_path },
 541   { US"sender",         6, TRUE,  htype_sender },
 542   { US"subject",        7, FALSE, htype_subject },
 543   { US"to",             2, TRUE,  htype_to }
 544 };
 545
 546 int header_names_size          = sizeof(header_names)/sizeof(header_name);
 547
 548 BOOL    header_rewritten       = FALSE;
 549 uschar *helo_accept_junk_hosts = NULL;
 550 uschar *helo_allow_chars       = US"";
 551 uschar *helo_lookup_domains    = US"@ : @[]";
 552 uschar *helo_try_verify_hosts  = NULL;
 553 BOOL    helo_verified          = FALSE;
 554 uschar *helo_verify_hosts      = NULL;
 555 uschar *hex_digits             = US"0123456789abcdef";
 556 uschar *hold_domains           = NULL;
 557 BOOL    host_checking          = FALSE;
 558 BOOL    host_checking_callout  = FALSE;
 559 uschar *host_data              = NULL;
 560 BOOL    host_find_failed_syntax= FALSE;
 561 uschar *host_lookup            = NULL;
 562 BOOL    host_lookup_failed     = FALSE;
 563 uschar *host_lookup_order      = US"bydns:byaddr";
 564 uschar *host_lookup_msg        = US"";
 565 int     host_number            = 0;
 566 uschar *host_number_string     = NULL;
 567 uschar *host_reject_connection = NULL;
 568 tree_node *hostlist_anchor     = NULL;
 569 int     hostlist_count         = 0;
 570 uschar *hosts_treat_as_local   = NULL;
 571 uschar *hosts_connection_nolog = NULL;
 572
 573 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
 574 BOOL    ignore_fromline_local  = FALSE;
 575 uschar *ignore_fromline_hosts  = NULL;
 576 uschar *interface_address      = NULL;
 577 int     interface_port         = -1;
 578 BOOL    is_inetd               = FALSE;
 579
 580 int     journal_fd             = -1;
 581
 582 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 583
 584 uschar *eldap_dn               = NULL;
 585 int     load_average           = -2;
 586 BOOL    local_error_message    = FALSE;
 587 BOOL    local_from_check       = TRUE;
 588 uschar *local_from_prefix      = NULL;
 589 uschar *local_from_suffix      = NULL;
 590
 591 #if HAVE_IPV6
 592 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
 593 #else
 594 uschar *local_interfaces       = US"0.0.0.0";
 595 #endif
 596
 597 uschar *local_scan_data        = NULL;
 598 int     local_scan_timeout     = 5*60;
 599 BOOL    local_sender_retain    = FALSE;
 600 gid_t   local_user_gid         = (gid_t)(-1);
 601 uid_t   local_user_uid         = (uid_t)(-1);
 602
 603 tree_node *localpartlist_anchor= NULL;
 604 int     localpartlist_count    = 0;
 605 uschar *log_buffer             = NULL;
 606 unsigned int log_extra_selector = LX_default;
 607 uschar *log_file_path          = US LOG_FILE_PATH
 608                            "\0<--------------Space to patch log_file_path->";
 609
 610 /* Those log options with L_xxx identifiers have values less than 0x800000 and
 611 are the ones that get put into log_write_selector. They can be used in calls to
 612 log_write() to test for the bit. The options with LX_xxx identifiers have
 613 values greater than 0x80000000 and are put int log_extra_selector (without the
 614 top bit). They are never used in calls to log_write(), but are tested
 615 independently. This separation became necessary when the number of log
 616 selectors was getting close to filling a 32-bit word. */
 617
 618 bit_table log_options[]        = {
 619   { US"address_rewrite",              L_address_rewrite },
 620   { US"all",                          L_all },
 621   { US"all_parents",                  L_all_parents },
 622   { US"arguments",                    LX_arguments },
 623   { US"connection_reject",            L_connection_reject },
 624   { US"delay_delivery",               L_delay_delivery },
 625   { US"deliver_time",                 LX_deliver_time },
 626   { US"delivery_size",                LX_delivery_size },
 627   { US"dnslist_defer",                L_dnslist_defer },
 628   { US"etrn",                         L_etrn },
 629   { US"host_lookup_failed",           L_host_lookup_failed },
 630   { US"ident_timeout",                LX_ident_timeout },
 631   { US"incoming_interface",           LX_incoming_interface },
 632   { US"incoming_port",                LX_incoming_port },
 633   { US"lost_incoming_connection",     L_lost_incoming_connection },
 634   { US"outgoing_port",                LX_outgoing_port },
 635   { US"queue_run",                    L_queue_run },
 636   { US"queue_time",                   LX_queue_time },
 637   { US"queue_time_overall",           LX_queue_time_overall },
 638   { US"received_recipients",          LX_received_recipients },
 639   { US"received_sender",              LX_received_sender },
 640   { US"rejected_header",              LX_rejected_header },
 641   { US"rejected_headers",             LX_rejected_header },
 642   { US"retry_defer",                  L_retry_defer },
 643   { US"return_path_on_delivery",      LX_return_path_on_delivery },
 644   { US"sender_on_delivery",           LX_sender_on_delivery },
 645   { US"size_reject",                  L_size_reject },
 646   { US"skip_delivery",                L_skip_delivery },
 647   { US"smtp_confirmation",            LX_smtp_confirmation },
 648   { US"smtp_connection",              L_smtp_connection },
 649   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
 650   { US"smtp_protocol_error",          L_smtp_protocol_error },
 651   { US"smtp_syntax_error",            L_smtp_syntax_error },
 652   { US"subject",                      LX_subject },
 653   { US"tls_certificate_verified",     LX_tls_certificate_verified },
 654   { US"tls_cipher",                   LX_tls_cipher },
 655   { US"tls_peerdn",                   LX_tls_peerdn }
 656 };
 657
 658 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
 659 unsigned int log_write_selector= L_default;
 660 uschar *log_selector_string    = NULL;
 661 FILE   *log_stderr             = NULL;
 662 BOOL    log_testing_mode       = FALSE;
 663 BOOL    log_timezone           = FALSE;
 664 uschar *login_sender_address   = NULL;
 665 int     lookup_open_max        = 25;
 666 uschar *lookup_value           = NULL;
 667
 668 macro_item  *macros            = NULL;
 669 uschar *mailstore_basename     = NULL;
 670 #ifdef WITH_CONTENT_SCAN
 671 uschar *malware_name           = NULL;  /* Virus Name */
 672 #endif
 673 int     max_username_length    = 0;
 674 int     message_age            = 0;
 675 uschar *message_body           = NULL;
 676 uschar *message_body_end       = NULL;
 677 int     message_body_size      = 0;
 678 int     message_body_visible   = 500;
 679 int     message_ended          = END_NOTSTARTED;
 680 uschar *message_headers        = NULL;
 681 uschar *message_id;
 682 uschar *message_id_domain      = NULL;
 683 uschar *message_id_text        = NULL;
 684 struct timeval message_id_tv   = { 0, 0 };
 685 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
 686 uschar *message_id_external;
 687 int     message_linecount      = 0;
 688 BOOL    message_logs           = TRUE;
 689 int     message_size           = 0;
 690 uschar *message_size_limit     = US"50M";
 691 uschar  message_subdir[2]      = { 0, 0 };
 692 uschar *message_reference      = NULL;
 693
 694 /* MIME ACL expandables */
 695 #ifdef WITH_CONTENT_SCAN
 696 int     mime_anomaly_level     = 0;
 697 uschar *mime_anomaly_text      = NULL;
 698 uschar *mime_boundary          = NULL;
 699 uschar *mime_charset           = NULL;
 700 uschar *mime_content_description = NULL;
 701 uschar *mime_content_disposition = NULL;
 702 uschar *mime_content_id        = NULL;
 703 unsigned int mime_content_size = 0;
 704 uschar *mime_content_transfer_encoding = NULL;
 705 uschar *mime_content_type      = NULL;
 706 uschar *mime_decoded_filename  = NULL;
 707 uschar *mime_filename          = NULL;
 708 int     mime_is_multipart      = 0;
 709 int     mime_is_coverletter    = 0;
 710 int     mime_is_rfc822         = 0;
 711 int     mime_part_count        = -1;
 712 #endif
 713
 714 BOOL    mua_wrapper            = FALSE;
 715
 716 uid_t  *never_users            = NULL;
 717 #ifdef WITH_CONTENT_SCAN
 718 BOOL    no_mbox_unspool        = FALSE;
 719 #endif
 720 BOOL    no_multiline_responses = FALSE;
 721
 722 uid_t   original_euid;
 723 gid_t   originator_gid;
 724 uschar *originator_login       = NULL;
 725 uschar *originator_name        = NULL;
 726 uid_t   originator_uid;
 727 uschar *override_local_interfaces = NULL;
 728 uschar *override_pid_file_path = NULL;
 729
 730 BOOL    parse_allow_group      = FALSE;
 731 BOOL    parse_found_group      = FALSE;
 732 uschar *percent_hack_domains   = NULL;
 733 uschar *pid_file_path          = US PID_FILE_PATH
 734                            "\0<--------------Space to patch pid_file_path->";
 735 uschar *pipelining_advertise_hosts = US"*";
 736 BOOL    preserve_message_logs  = FALSE;
 737 uschar *primary_hostname       = NULL;
 738 BOOL    print_topbitchars      = FALSE;
 739 uschar  process_info[PROCESS_INFO_SIZE];
 740 uschar *process_log_path       = NULL;
 741 BOOL    prod_requires_admin    = TRUE;
 742
 743 uschar *qualify_domain_recipient = NULL;
 744 uschar *qualify_domain_sender  = NULL;
 745 BOOL    queue_2stage           = FALSE;
 746 uschar *queue_domains          = NULL;
 747 int     queue_interval         = -1;
 748 BOOL    queue_list_requires_admin = TRUE;
 749 BOOL    queue_only             = FALSE;
 750 uschar *queue_only_file        = NULL;
 751 int     queue_only_load        = -1;
 752 BOOL    queue_only_override    = TRUE;
 753 BOOL    queue_only_policy      = FALSE;
 754 BOOL    queue_run_first_delivery = FALSE;
 755 BOOL    queue_run_force        = FALSE;
 756 BOOL    queue_run_in_order     = FALSE;
 757 BOOL    queue_run_local        = FALSE;
 758 int     queue_run_max          = 5;
 759 pid_t   queue_run_pid          = (pid_t)0;
 760 int     queue_run_pipe         = -1;
 761 BOOL    queue_running          = FALSE;
 762 BOOL    queue_smtp             = FALSE;
 763 uschar *queue_smtp_domains     = NULL;
 764
 765 unsigned int random_seed       = 0;
 766 uschar *raw_active_hostname    = NULL;
 767 uschar *raw_sender             = NULL;
 768 uschar **raw_recipients        = NULL;
 769 int     raw_recipients_count   = 0;
 770
 771 int     rcpt_count             = 0;
 772 int     rcpt_fail_count        = 0;
 773 int     rcpt_defer_count       = 0;
 774 gid_t   real_gid;
 775 uid_t   real_uid;
 776 BOOL    really_exim            = TRUE;
 777 BOOL    receive_call_bombout   = FALSE;
 778 int     receive_linecount      = 0;
 779 int     receive_messagecount   = 0;
 780 int     receive_timeout        = 0;
 781 int     received_count         = 0;
 782 uschar *received_for           = NULL;
 783
 784 /*  This is the default text for Received headers generated by Exim. The
 785 date  will be automatically added on the end. */
 786
 787 uschar *received_header_text   = US
 788      "Received: "
 789      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
 790      "{${if def:sender_ident {from $sender_ident }}"
 791      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
 792      "by $primary_hostname "
 793      "${if def:received_protocol {with $received_protocol}} "
 794      #ifdef SUPPORT_TLS
 795      "${if def:tls_cipher {($tls_cipher)\n\t}}"
 796      #endif
 797      "(Exim $version_number)\n\t"
 798      "id $message_id"
 799      "${if def:received_for {\n\tfor $received_for}}"
 800      "\0<---------------Space to patch received_header_text->";
 801
 802 int     received_headers_max   = 30;
 803 uschar *received_protocol      = NULL;
 804 int     received_time          = 0;
 805 uschar *recipient_data         = NULL;
 806 uschar *recipient_unqualified_hosts = NULL;
 807 uschar *recipient_verify_failure = NULL;
 808 int     recipients_count       = 0;
 809 BOOL    recipients_discarded   = FALSE;
 810 recipient_item  *recipients_list = NULL;
 811 int     recipients_list_max    = 0;
 812 int     recipients_max         = 0;
 813 BOOL    recipients_max_reject  = FALSE;
 814 const pcre *regex_AUTH         = NULL;
 815 const pcre *regex_check_dns_names = NULL;
 816 const pcre *regex_From         = NULL;
 817 const pcre *regex_PIPELINING   = NULL;
 818 const pcre *regex_SIZE         = NULL;
 819 const pcre *regex_ismsgid      = NULL;
 820 #ifdef WITH_CONTENT_SCAN
 821 uschar *regex_match_string     = NULL;
 822 #endif
 823 int     remote_delivery_count  = 0;
 824 int     remote_max_parallel    = 2;
 825 uschar *remote_sort_domains    = NULL;
 826 int     retry_data_expire      = 7*24*60*60;
 827 int     retry_interval_max     = 24*60*60;
 828 int     retry_maximum_timeout  = 0;        /* set from retry config */
 829 retry_config  *retries         = NULL;
 830 uschar *return_path            = NULL;
 831 BOOL    return_path_remove     = TRUE;
 832 int     rewrite_existflags     = 0;
 833 uschar *rfc1413_hosts          = US"*";
 834 int     rfc1413_query_timeout  = 30;
 835 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
 836 uid_t   root_uid               = ROOT_UID;
 837
 838 router_instance  *routers  = NULL;
 839 router_instance  router_defaults = {
 840     NULL,                      /* chain pointer */
 841     NULL,                      /* name */
 842     NULL,                      /* info */
 843     NULL,                      /* private options block pointer */
 844     NULL,                      /* driver name */
 845
 846     NULL,                      /* address_data */
 847 #ifdef EXPERIMENTAL_BRIGHTMAIL
 848     NULL,                      /* bmi_rule */
 849 #endif
 850     NULL,                      /* cannot_route_message */
 851     NULL,                      /* condition */
 852     NULL,                      /* current_directory */
 853     NULL,                      /* debug_string */
 854     NULL,                      /* domains */
 855     NULL,                      /* errors_to */
 856     NULL,                      /* expand_gid */
 857     NULL,                      /* expand_uid */
 858     NULL,                      /* expand_more */
 859     NULL,                      /* expand_unseen */
 860     NULL,                      /* extra_headers */
 861     NULL,                      /* fallback_hosts */
 862     NULL,                      /* home_directory */
 863     NULL,                      /* ignore_target_hosts */
 864     NULL,                      /* local_parts */
 865     NULL,                      /* pass_router_name */
 866     NULL,                      /* prefix */
 867     NULL,                      /* redirect_router_name */
 868     NULL,                      /* remove_headers */
 869     NULL,                      /* require_files */
 870     NULL,                      /* router_home_directory */
 871     US"freeze",                /* self */
 872     NULL,                      /* senders */
 873     NULL,                      /* suffix */
 874     NULL,                      /* translate_ip_address */
 875     NULL,                      /* transport_name */
 876
 877     TRUE,                      /* address_test */
 878 #ifdef EXPERIMENTAL_BRIGHTMAIL
 879     FALSE,                     /* bmi_deliver_alternate */
 880     FALSE,                     /* bmi_deliver_default */
 881     FALSE,                     /* bmi_dont_deliver */
 882 #endif
 883     TRUE,                      /* expn */
 884     FALSE,                     /* caseful_local_part */
 885     FALSE,                     /* check_local_user */
 886     FALSE,                     /* disable_logging */
 887     FALSE,                     /* fail_verify_recipient */
 888     FALSE,                     /* fail_verify_sender */
 889     FALSE,                     /* gid_set */
 890     FALSE,                     /* initgroups */
 891     TRUE_UNSET,                /* log_as_local */
 892     TRUE,                      /* more */
 893     FALSE,                     /* pass_on_timeout */
 894     FALSE,                     /* prefix_optional */
 895     TRUE,                      /* repeat_use */
 896     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
 897     FALSE,                     /* same_domain_copy_routing */
 898     FALSE,                     /* self_rewrite */
 899     FALSE,                     /* suffix_optional */
 900     FALSE,                     /* verify_only */
 901     TRUE,                      /* verify_recipient */
 902     TRUE,                      /* verify_sender */
 903     FALSE,                     /* uid_set */
 904     FALSE,                     /* unseen */
 905
 906     self_freeze,               /* self_code */
 907     (uid_t)(-1),               /* uid */
 908     (gid_t)(-1),               /* gid */
 909
 910     NULL,                      /* fallback_hostlist */
 911     NULL,                      /* transport instance */
 912     NULL,                      /* pass_router */
 913     NULL                       /* redirect_router */
 914 };
 915
 916 ip_address_item *running_interfaces = NULL;
 917 BOOL    running_in_test_harness = FALSE;
 918
 919 /* This is a weird one. The following string gets patched in the binary by the
 920 script that sets up a copy of Exim for running in the test harness. It seems
 921 that compilers are now clever, and share constant strings if they can.
 922 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
 923 make use of the end of this string in order to save space. So the patching then
 924 wrecks this. We default this optimization by adding some additional characters
 925 onto the end of the string. */
 926
 927 uschar *running_status         = US">>>running<<<" "\0EXTRA";
 928
 929 int     runrc                  = 0;
 930
 931 uschar *search_error_message   = NULL;
 932 BOOL    search_find_defer      = FALSE;
 933 uschar *self_hostname          = NULL;
 934 uschar *sender_address         = NULL;
 935 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
 936 uschar *sender_address_data    = NULL;
 937 BOOL    sender_address_forced  = FALSE;
 938 uschar *sender_address_unrewritten = NULL;
 939 uschar *sender_data            = NULL;
 940 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
 941 uschar *sender_fullhost        = NULL;
 942 uschar *sender_helo_name       = NULL;
 943 uschar **sender_host_aliases   = &no_aliases;
 944 uschar *sender_host_address    = NULL;
 945 uschar *sender_host_authenticated = NULL;
 946 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
 947 uschar *sender_host_name       = NULL;
 948 int     sender_host_port       = 0;
 949 BOOL    sender_host_notsocket  = FALSE;
 950 BOOL    sender_host_unknown    = FALSE;
 951 uschar *sender_ident           = NULL;
 952 BOOL    sender_local           = FALSE;
 953 uschar *sender_rcvhost         = NULL;
 954 BOOL    sender_set_untrusted   = FALSE;
 955 uschar *sender_unqualified_hosts = NULL;
 956 uschar *sender_verify_failure = NULL;
 957 address_item *sender_verified_list  = NULL;
 958 address_item *sender_verified_failed = NULL;
 959 int     sender_verified_rc     = -1;
 960 BOOL    sender_verified_responded = FALSE;
 961 volatile  BOOL sigalrm_seen    = FALSE;
 962 uschar **sighup_argv           = NULL;
 963 int     smtp_accept_count      = 0;
 964 BOOL    smtp_accept_keepalive  = TRUE;
 965 int     smtp_accept_max        = 20;
 966 int     smtp_accept_max_nonmail= 10;
 967 uschar *smtp_accept_max_nonmail_hosts = US"*";
 968 int     smtp_accept_max_per_connection = 1000;
 969 uschar *smtp_accept_max_per_host = NULL;
 970 int     smtp_accept_queue      = 0;
 971 int     smtp_accept_queue_per_connection = 10;
 972 int     smtp_accept_reserve    = 0;
 973 uschar *smtp_active_hostname   = NULL;
 974 BOOL    smtp_authenticated     = FALSE;
 975 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
 976                              "Exim $version_number $tod_full"
 977                              "\0<---------------Space to patch smtp_banner->";
 978 BOOL    smtp_batched_input     = FALSE;
 979 BOOL    smtp_check_spool_space = TRUE;
 980 uschar *smtp_command_argument  = NULL;
 981 int     smtp_connect_backlog   = 20;
 982 double  smtp_delay_mail        = 0.0;
 983 double  smtp_delay_rcpt        = 0.0;
 984 BOOL    smtp_enforce_sync      = TRUE;
 985 FILE   *smtp_in                = NULL;
 986 BOOL    smtp_input             = FALSE;
 987 int     smtp_load_reserve      = -1;
 988 int     smtp_mailcmd_count     = 0;
 989 FILE   *smtp_out               = NULL;
 990 uschar *smtp_etrn_command      = NULL;
 991 BOOL    smtp_etrn_serialize    = TRUE;
 992 int     smtp_max_synprot_errors= 3;
 993 int     smtp_max_unknown_commands = 3;
 994 uschar *smtp_ratelimit_hosts   = NULL;
 995 uschar *smtp_ratelimit_mail    = NULL;
 996 uschar *smtp_ratelimit_rcpt    = NULL;
 997 uschar *smtp_read_error        = US"";
 998 int     smtp_receive_timeout   = 5*60;
 999 uschar *smtp_reserve_hosts     = NULL;
1000 BOOL    smtp_return_error_details = FALSE;
1001 int     smtp_rlm_base          = 0;
1002 double  smtp_rlm_factor        = 0.0;
1003 int     smtp_rlm_limit         = 0;
1004 int     smtp_rlm_threshold     = INT_MAX;
1005 int     smtp_rlr_base          = 0;
1006 double  smtp_rlr_factor        = 0.0;
1007 int     smtp_rlr_limit         = 0;
1008 int     smtp_rlr_threshold     = INT_MAX;
1009 BOOL    smtp_use_pipelining    = FALSE;
1010 BOOL    smtp_use_size          = FALSE;
1011
1012 #ifdef WITH_CONTENT_SCAN
1013 uschar *spamd_address          = US"127.0.0.1 783";
1014 uschar *spam_bar               = NULL;
1015 uschar *spam_report            = NULL;
1016 uschar *spam_score             = NULL;
1017 uschar *spam_score_int         = NULL;
1018 #endif
1019 #ifdef EXPERIMENTAL_SPF
1020 uschar *spf_header_comment     = NULL;
1021 uschar *spf_received           = NULL;
1022 uschar *spf_result             = NULL;
1023 uschar *spf_smtp_comment       = NULL;
1024 #endif
1025
1026 BOOL    split_spool_directory  = FALSE;
1027 uschar *spool_directory        = US SPOOL_DIRECTORY
1028                            "\0<--------------Space to patch spool_directory->";
1029 #ifdef EXPERIMENTAL_SRS
1030 uschar *srs_config             = NULL;
1031 uschar *srs_db_address         = NULL;
1032 uschar *srs_db_key             = NULL;
1033 uschar *srs_orig_recipient     = NULL;
1034 uschar *srs_orig_sender        = NULL;
1035 uschar *srs_recipient          = NULL;
1036 uschar *srs_status             = NULL;
1037 #endif
1038 int     string_datestamp_offset= -1;
1039 BOOL    strip_excess_angle_brackets = FALSE;
1040 BOOL    strip_trailing_dot     = FALSE;
1041 uschar *submission_domain      = NULL;
1042 BOOL    submission_mode        = FALSE;
1043 BOOL    synchronous_delivery   = FALSE;
1044 BOOL    syslog_duplication     = TRUE;
1045 int     syslog_facility        = LOG_MAIL;
1046 uschar *syslog_processname     = US"exim";
1047 BOOL    syslog_timestamp       = TRUE;
1048 uschar *system_filter          = NULL;
1049
1050 uschar *system_filter_directory_transport = NULL;
1051 uschar *system_filter_file_transport = NULL;
1052 uschar *system_filter_pipe_transport = NULL;
1053 uschar *system_filter_reply_transport = NULL;
1054
1055 gid_t   system_filter_gid      = 0;
1056 BOOL    system_filter_gid_set  = FALSE;
1057 uid_t   system_filter_uid      = 0;
1058 BOOL    system_filter_uid_set  = FALSE;
1059 BOOL    system_filtering       = FALSE;
1060
1061 BOOL    tcp_nodelay            = TRUE;
1062 int     thismessage_size_limit = 0;
1063 int     timeout_frozen_after   = 0;
1064 BOOL    timestamps_utc         = FALSE;
1065
1066 transport_instance  *transports = NULL;
1067
1068 transport_instance  transport_defaults = {
1069     NULL,                     /* chain pointer */
1070     NULL,                     /* name */
1071     NULL,                     /* info */
1072     NULL,                     /* private options block pointer */
1073     NULL,                     /* driver name */
1074     NULL,                     /* setup entry point */
1075     1,                        /* batch_max */
1076     NULL,                     /* batch_id */
1077     NULL,                     /* home_dir */
1078     NULL,                     /* current_dir */
1079     TRUE,                     /* multi-domain */
1080     FALSE,                    /* overrides_hosts */
1081     100,                      /* max_addresses */
1082     500,                      /* connection_max_messages */
1083     FALSE,                    /* deliver_as_creator */
1084     FALSE,                    /* disable_logging */
1085     FALSE,                    /* initgroups */
1086     FALSE,                    /* uid_set */
1087     FALSE,                    /* gid_set */
1088     (uid_t)(-1),              /* uid */
1089     (gid_t)(-1),              /* gid */
1090     NULL,                     /* expand_uid */
1091     NULL,                     /* expand_gid */
1092     NULL,                     /* warn_message */
1093     NULL,                     /* shadow */
1094     NULL,                     /* shadow_condition */
1095     NULL,                     /* filter_command */
1096     NULL,                     /* add_headers */
1097     NULL,                     /* remove_headers */
1098     NULL,                     /* return_path */
1099     NULL,                     /* debug_string */
1100     NULL,                     /* message_size_limit */
1101     NULL,                     /* headers_rewrite */
1102     NULL,                     /* rewrite_rules */
1103     0,                        /* rewrite_existflags */
1104     300,                      /* filter_timeout */
1105     FALSE,                    /* body_only */
1106     FALSE,                    /* delivery_date_add */
1107     FALSE,                    /* envelope_to_add */
1108     FALSE,                    /* headers_only */
1109     FALSE,                    /* rcpt_include_affixes */
1110     FALSE,                    /* return_path_add */
1111     FALSE,                    /* return_output */
1112     FALSE,                    /* return_fail_output */
1113     FALSE,                    /* log_output */
1114     FALSE,                    /* log_fail_output */
1115     FALSE,                    /* log_defer_output */
1116     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1117                                  1 nor 0 so can detect unset */
1118 };
1119
1120 int     transport_count;
1121 uschar **transport_filter_argv  = NULL;
1122 int     transport_filter_timeout;
1123 int     transport_write_timeout= 0;
1124
1125 tree_node  *tree_dns_fails     = NULL;
1126 tree_node  *tree_duplicates    = NULL;
1127 tree_node  *tree_nonrecipients = NULL;
1128 tree_node  *tree_unusable      = NULL;
1129
1130 BOOL    trusted_caller         = FALSE;
1131 gid_t  *trusted_groups         = NULL;
1132 uid_t  *trusted_users          = NULL;
1133 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1134
1135 uschar *unknown_login          = NULL;
1136 uschar *unknown_username       = NULL;
1137 uschar *untrusted_set_sender   = NULL;
1138
1139 /*  A regex for matching a "From_" line in an incoming message, in the form
1140
1141     From ph10 Fri Jan  5 12:35 GMT 1996
1142
1143 which  the "mail" commands send to the MTA (undocumented, of course), or in
1144 the  form
1145
1146     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1147
1148 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1149 Because  of variations in time formats, just match up to the minutes. That
1150 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1151 so  just require one digit for hours and minutes. The weekday is also absent
1152 in  some forms. */
1153
1154 uschar *uucp_from_pattern      = US
1155    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1156    "(?:"                                          /* Non-extracting bracket */
1157    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1158    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1159    ")"                                            /* End alternation */
1160    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1161
1162 uschar *uucp_from_sender       = US"$1";
1163
1164 uschar *warn_message_file      = NULL;
1165 uschar *warnmsg_delay          = NULL;
1166 uschar *warnmsg_recipients     = NULL;
1167 BOOL    write_rejectlog        = TRUE;
1168
1169 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1170 uschar *version_date           = US"?";
1171 uschar *version_cnumber        = US"????";
1172 uschar *version_string         = US"?";
1173
1174 int     warning_count          = 0;
1175
1176 /*  End of globals.c */