a206d42328af75e85a104796b4167ef46773c671
[users/heiko/exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.2 2004/10/18 09:16:57 ph10 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 uschar *acl_smtp_predata       = NULL;
168 uschar *acl_smtp_quit          = NULL;
169 uschar *acl_smtp_rcpt          = NULL;
170 uschar *acl_smtp_starttls      = NULL;
171 uschar *acl_smtp_vrfy          = NULL;
172 BOOL    acl_temp_details       = FALSE;
173 uschar *acl_var[ACL_C_MAX+ACL_M_MAX];
174 uschar *acl_verify_message     = NULL;
175 header_line *acl_warn_headers  = NULL;
176 string_item *acl_warn_logged   = NULL;
177
178 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
179 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
180
181 uschar *acl_wherenames[]       = { US"RCPT",
182                                    US"MAIL",
183                                    US"PREDATA",
184                                    US"DATA",
185                                    US"non-SMTP",
186                                    US"AUTH",
187                                    US"connection",
188                                    US"ETRN",
189                                    US"EXPN",
190                                    US"EHLO or HELO",
191                                    US"MAILAUTH",
192                                    US"QUIT",
193                                    US"STARTTLS",
194                                    US"VRFY"
195                                  };
196
197 int     acl_wherecodes[]       = { 550,     /* RCPT */
198                                    550,     /* MAIL */
199                                    550,     /* PREDATA */
200                                    550,     /* DATA */
201                                    0,       /* not SMTP; not relevant */
202                                    503,     /* AUTH */
203                                    550,     /* connect */
204                                    458,     /* ETRN */
205                                    550,     /* EXPN */
206                                    550,     /* HELO/EHLO */
207                                    0,       /* MAILAUTH; not relevant */
208                                    0,       /* QUIT; not relevant */
209                                    550,     /* STARTTLS */
210                                    252      /* VRFY */
211                                  };
212
213 BOOL    accept_8bitmime        = FALSE;
214 address_item  *addr_duplicate  = NULL;
215
216 address_item address_defaults = {
217   NULL,                 /* next */
218   NULL,                 /* parent */
219   NULL,                 /* first */
220   NULL,                 /* dupof */
221   NULL,                 /* start_router */
222   NULL,                 /* router */
223   NULL,                 /* transport */
224   NULL,                 /* host_list */
225   NULL,                 /* host_used */
226   NULL,                 /* fallback_hosts */
227   NULL,                 /* reply */
228   NULL,                 /* retries */
229   NULL,                 /* address */
230   NULL,                 /* unique */
231   NULL,                 /* cc_local_part */
232   NULL,                 /* lc_local_part */
233   NULL,                 /* local_part */
234   NULL,                 /* prefix */
235   NULL,                 /* suffix */
236   NULL,                 /* domain */
237   NULL,                 /* address_retry_key */
238   NULL,                 /* domain_retry_key */
239   NULL,                 /* current_dir */
240   NULL,                 /* home_dir */
241   NULL,                 /* message */
242   NULL,                 /* user_message */
243   NULL,                 /* onetime_parent */
244   NULL,                 /* pipe_expandn */
245   NULL,                 /* return_filename */
246   NULL,                 /* self_hostname */
247   NULL,                 /* shadow_message */
248   #ifdef SUPPORT_TLS
249   NULL,                 /* cipher */
250   NULL,                 /* peerdn */
251   #endif
252   (uid_t)(-1),          /* uid */
253   (gid_t)(-1),          /* gid */
254   0,                    /* flags */
255   { 0 },                /* domain_cache - any larger array should be zeroed */
256   { 0 },                /* localpart_cache - ditto */
257   -1,                   /* mode */
258   0,                    /* more_errno */
259   ERRNO_UNKNOWNERROR,   /* basic_errno */
260   0,                    /* child_count */
261   -1,                   /* return_file */
262   SPECIAL_NONE,         /* special_action */
263   DEFER,                /* transport_return */
264   {                     /* fields that are propagated to children */
265     NULL,               /* address_data */
266     NULL,               /* domain_data */
267     NULL,               /* localpart_data */
268     NULL,               /* errors_address */
269     NULL,               /* extra_headers */
270     NULL,               /* remove_headers */
271   }
272 };
273
274 uschar *address_file           = NULL;
275 uschar *address_pipe           = NULL;
276 BOOL    address_test_mode      = FALSE;
277 tree_node *addresslist_anchor  = NULL;
278 int     addresslist_count      = 0;
279 gid_t  *admin_groups           = NULL;
280 BOOL    admin_user             = FALSE;
281 BOOL    allow_domain_literals  = FALSE;
282 BOOL    allow_mx_to_ip         = FALSE;
283 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
284 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
285 BOOL    allow_utf8_domains     = FALSE;
286 uschar *authenticated_id       = NULL;
287 uschar *authenticated_sender   = NULL;
288 BOOL    authentication_failed  = FALSE;
289 auth_instance  *auths          = NULL;
290 uschar *auth_advertise_hosts   = US"*";
291 auth_instance auth_defaults    = {
292     NULL,                      /* chain pointer */
293     NULL,                      /* name */
294     NULL,                      /* info */
295     NULL,                      /* private options block pointer */
296     NULL,                      /* driver_name */
297     NULL,                      /* advertise_condition */
298     NULL,                      /* public_name */
299     NULL,                      /* set_id */
300     NULL,                      /* server_mail_auth_condition */
301     NULL,                      /* server_debug_string */
302     FALSE,                     /* client */
303     FALSE,                     /* server */
304     FALSE                      /* advertised */
305 };
306
307 uschar *auth_defer_msg         = US"reason not recorded";
308 uschar *auth_defer_user_msg    = US"";
309 int     auto_thaw              = 0;
310
311 BOOL    background_daemon      = TRUE;
312 uschar *base62_chars=
313     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
314 uschar *bi_command             = NULL;
315 uschar *big_buffer             = NULL;
316 int     big_buffer_size        = BIG_BUFFER_SIZE;
317 int     body_linecount         = 0;
318 int     body_zerocount         = 0;
319 uschar *bounce_message_file    = NULL;
320 uschar *bounce_message_text    = NULL;
321 uschar *bounce_recipient       = NULL;
322 BOOL    bounce_return_body     = TRUE;
323 BOOL    bounce_return_message  = TRUE;
324 int     bounce_return_size_limit = 100*1024;
325 uschar *bounce_sender_authentication = NULL;
326 int     bsmtp_transaction_linecount = 0;
327
328 int     callout_cache_domain_positive_expire = 7*24*60*60;
329 int     callout_cache_domain_negative_expire = 3*60*60;
330 int     callout_cache_positive_expire = 24*60*60;
331 int     callout_cache_negative_expire = 2*60*60;
332 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
333 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
334 int     check_log_inodes       = 0;
335 int     check_log_space        = 0;
336 int     check_spool_inodes     = 0;
337 int     check_spool_space      = 0;
338 int     clmacro_count          = 0;
339 uschar *clmacros[MAX_CLMACROS];
340 BOOL    config_changed         = FALSE;
341 FILE   *config_file            = NULL;
342 uschar *config_filename        = NULL;
343 int     config_lineno          = 0;
344 #ifdef CONFIGURE_GROUP
345 gid_t   config_gid             = CONFIGURE_GROUP;
346 #endif
347 uschar *config_main_filelist   = US CONFIGURE_FILE
348                          "\0<-----------Space to patch configure_filename->";
349 uschar *config_main_filename   = NULL;
350
351 #ifdef CONFIGURE_OWNER
352 uid_t   config_uid             = CONFIGURE_OWNER;
353 #endif
354
355 int     connection_max_messages= -1;
356 uschar *continue_hostname      = NULL;
357 uschar *continue_host_address  = NULL;
358 BOOL    continue_more          = FALSE;
359 int     continue_sequence      = 1;
360 uschar *continue_transport     = NULL;
361
362 BOOL    daemon_listen          = FALSE;
363 uschar *daemon_smtp_port       = US"smtp";
364 int     debug_fd               = -1;
365 FILE   *debug_file             = NULL;
366 bit_table debug_options[]      = {
367   { US"acl",            D_acl },
368   { US"all",            D_all },
369   { US"auth",           D_auth },
370   { US"deliver",        D_deliver },
371   { US"dns",            D_dns },
372   { US"dnsbl",          D_dnsbl },
373   { US"exec",           D_exec },
374   { US"expand",         D_expand },
375   { US"filter",         D_filter },
376   { US"hints_lookup",   D_hints_lookup },
377   { US"host_lookup",    D_host_lookup },
378   { US"ident",          D_ident },
379   { US"interface",      D_interface },
380   { US"lists",          D_lists },
381   { US"load",           D_load },
382   { US"local_scan",     D_local_scan },
383   { US"lookup",         D_lookup },
384   { US"memory",         D_memory },
385   { US"pid",            D_pid },
386   { US"process_info",   D_process_info },
387   { US"queue_run",      D_queue_run },
388   { US"receive",        D_receive },
389   { US"resolver",       D_resolver },
390   { US"retry",          D_retry },
391   { US"rewrite",        D_rewrite },
392   { US"route",          D_route },
393   { US"timestamp",      D_timestamp },
394   { US"tls",            D_tls },
395   { US"transport",      D_transport },
396   { US"uid",            D_uid },
397   { US"verify",         D_verify }
398 };
399 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
400 unsigned int debug_selector    = 0;
401 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
402 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
403 BOOL    delivery_date_remove   = TRUE;
404 uschar *deliver_address_data   = NULL;
405 int     deliver_datafile       = -1;
406 uschar *deliver_domain         = NULL;
407 uschar *deliver_domain_data    = NULL;
408 uschar *deliver_domain_orig    = NULL;
409 uschar *deliver_domain_parent  = NULL;
410 BOOL    deliver_drop_privilege = FALSE;
411 BOOL    deliver_firsttime      = FALSE;
412 BOOL    deliver_force          = FALSE;
413 BOOL    deliver_freeze         = FALSE;
414 int     deliver_frozen_at      = 0;
415 uschar *deliver_home           = NULL;
416 uschar *deliver_host           = NULL;
417 uschar *deliver_host_address   = NULL;
418 uschar *deliver_in_buffer      = NULL;
419 ino_t   deliver_inode          = 0;
420 uschar *deliver_localpart      = NULL;
421 uschar *deliver_localpart_data = NULL;
422 uschar *deliver_localpart_orig = NULL;
423 uschar *deliver_localpart_parent = NULL;
424 uschar *deliver_localpart_prefix = NULL;
425 uschar *deliver_localpart_suffix = NULL;
426 BOOL    deliver_force_thaw     = FALSE;
427 BOOL    deliver_manual_thaw    = FALSE;
428 uschar *deliver_out_buffer     = NULL;
429 int     deliver_queue_load_max = -1;
430 address_item  *deliver_recipients = NULL;
431 uschar *deliver_selectstring   = NULL;
432 BOOL    deliver_selectstring_regex = FALSE;
433 uschar *deliver_selectstring_sender = NULL;
434 BOOL    deliver_selectstring_sender_regex = FALSE;
435 BOOL    disable_logging        = FALSE;
436
437 uschar *dns_again_means_nonexist = NULL;
438 uschar *dns_ipv4_lookup        = NULL;
439 int     dns_retrans            = 0;
440 int     dns_retry              = 0;
441 uschar *dnslist_domain         = NULL;
442 uschar *dnslist_text           = NULL;
443 uschar *dnslist_value          = NULL;
444 tree_node *domainlist_anchor   = NULL;
445 int     domainlist_count       = 0;
446 BOOL    dont_deliver           = FALSE;
447 BOOL    dot_ends               = TRUE;
448 BOOL    drop_cr                = FALSE;         /* No longer used */
449
450 BOOL    enable_dollar_recipients = FALSE;
451 BOOL    envelope_to_remove     = TRUE;
452 int     errno_quota            = ERRNO_QUOTA;
453 uschar *errors_copy            = NULL;
454 int     error_handling         = ERRORS_SENDER;
455 uschar *errors_reply_to        = NULL;
456 int     errors_sender_rc       = EXIT_FAILURE;
457
458 gid_t   exim_gid               = EXIM_GID;
459 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
460 uschar *exim_path              = US BIN_DIRECTORY "/exim"
461                         "\0<---------------Space to patch exim_path->";
462 uid_t   exim_uid               = EXIM_UID;
463 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
464 int     expand_forbid          = 0;
465 int     expand_nlength[EXPAND_MAXN+1];
466 int     expand_nmax            = -1;
467 uschar *expand_nstring[EXPAND_MAXN+1];
468 BOOL    expand_string_forcedfail = FALSE;
469 uschar *expand_string_message;
470 BOOL    extract_addresses_remove_arguments = TRUE;
471 uschar *extra_local_interfaces = NULL;
472
473 int     filter_n[FILTER_VARIABLE_COUNT];
474 BOOL    filter_running         = FALSE;
475 int     filter_sn[FILTER_VARIABLE_COUNT];
476 uschar *filter_test            = NULL;
477 uschar *filter_thisaddress     = NULL;
478 int     finduser_retries       = 0;
479 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
480 uschar *freeze_tell            = NULL;
481 uschar *fudged_queue_times     = US"";
482
483 uschar *gecos_name             = NULL;
484 uschar *gecos_pattern          = NULL;
485 rewrite_rule  *global_rewrite_rules = NULL;
486
487 uschar *headers_charset        = US HEADERS_CHARSET;
488 int     header_insert_maxlen   = 64 * 1024;
489 header_line  *header_last      = NULL;
490 header_line  *header_list      = NULL;
491 int     header_maxsize         = HEADER_MAXSIZE;
492 int     header_line_maxsize    = 0;
493
494 header_name header_names[] = {
495   { US"bcc",            3, TRUE,  htype_bcc },
496   { US"cc",             2, TRUE,  htype_cc },
497   { US"date",           4, TRUE,  htype_date },
498   { US"delivery-date", 13, FALSE, htype_delivery_date },
499   { US"envelope-to",   11, FALSE, htype_envelope_to },
500   { US"from",           4, TRUE,  htype_from },
501   { US"message-id",    10, TRUE,  htype_id },
502   { US"received",       8, FALSE, htype_received },
503   { US"reply-to",       8, FALSE, htype_reply_to },
504   { US"return-path",   11, FALSE, htype_return_path },
505   { US"sender",         6, TRUE,  htype_sender },
506   { US"subject",        7, FALSE, htype_subject },
507   { US"to",             2, TRUE,  htype_to }
508 };
509
510 int header_names_size          = sizeof(header_names)/sizeof(header_name);
511
512 BOOL    header_rewritten       = FALSE;
513 uschar *helo_accept_junk_hosts = NULL;
514 uschar *helo_allow_chars       = US"";
515 uschar *helo_lookup_domains    = US"@ : @[]";
516 uschar *helo_try_verify_hosts  = NULL;
517 BOOL    helo_verified          = FALSE;
518 uschar *helo_verify_hosts      = NULL;
519 uschar *hex_digits             = US"0123456789abcdef";
520 uschar *hold_domains           = NULL;
521 BOOL    host_checking          = FALSE;
522 BOOL    host_checking_callout  = FALSE;
523 uschar *host_data              = NULL;
524 BOOL    host_find_failed_syntax= FALSE;
525 uschar *host_lookup            = NULL;
526 BOOL    host_lookup_failed     = FALSE;
527 uschar *host_lookup_order      = US"bydns:byaddr";
528 uschar *host_lookup_msg        = US"";
529 int     host_number            = 0;
530 uschar *host_number_string     = NULL;
531 uschar *host_reject_connection = NULL;
532 tree_node *hostlist_anchor     = NULL;
533 int     hostlist_count         = 0;
534 uschar *hosts_treat_as_local   = NULL;
535 uschar *hosts_connection_nolog = NULL;
536
537 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
538 BOOL    ignore_fromline_local  = FALSE;
539 uschar *ignore_fromline_hosts  = NULL;
540 uschar *interface_address      = NULL;
541 int     interface_port         = -1;
542 BOOL    is_inetd               = FALSE;
543
544 int     journal_fd             = -1;
545
546 int     keep_malformed         = 4*24*60*60;    /* 4 days */
547
548 uschar *eldap_dn               = NULL;
549 int     load_average           = -2;
550 BOOL    local_error_message    = FALSE;
551 BOOL    local_from_check       = TRUE;
552 uschar *local_from_prefix      = NULL;
553 uschar *local_from_suffix      = NULL;
554
555 #if HAVE_IPV6
556 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
557 #else
558 uschar *local_interfaces       = US"0.0.0.0";
559 #endif
560
561 uschar *local_scan_data        = NULL;
562 int     local_scan_timeout     = 5*60;
563 BOOL    local_sender_retain    = FALSE;
564 gid_t   local_user_gid         = (gid_t)(-1);
565 uid_t   local_user_uid         = (uid_t)(-1);
566
567 tree_node *localpartlist_anchor= NULL;
568 int     localpartlist_count    = 0;
569 uschar *log_buffer             = NULL;
570 unsigned int log_extra_selector = LX_default;
571 uschar *log_file_path          = US LOG_FILE_PATH
572                            "\0<--------------Space to patch log_file_path->";
573
574 /* Those log options with L_xxx identifiers have values less than 0x800000 and
575 are the ones that get put into log_write_selector. They can be used in calls to
576 log_write() to test for the bit. The options with LX_xxx identifiers have
577 values greater than 0x80000000 and are put int log_extra_selector (without the
578 top bit). They are never used in calls to log_write(), but are tested
579 independently. This separation became necessary when the number of log
580 selectors was getting close to filling a 32-bit word. */
581
582 bit_table log_options[]        = {
583   { US"address_rewrite",              L_address_rewrite },
584   { US"all",                          L_all },
585   { US"all_parents",                  L_all_parents },
586   { US"arguments",                    LX_arguments },
587   { US"connection_reject",            L_connection_reject },
588   { US"delay_delivery",               L_delay_delivery },
589   { US"deliver_time",                 LX_deliver_time },
590   { US"delivery_size",                LX_delivery_size },
591   { US"dnslist_defer",                L_dnslist_defer },
592   { US"etrn",                         L_etrn },
593   { US"host_lookup_failed",           L_host_lookup_failed },
594   { US"ident_timeout",                LX_ident_timeout },
595   { US"incoming_interface",           LX_incoming_interface },
596   { US"incoming_port",                LX_incoming_port },
597   { US"lost_incoming_connection",     L_lost_incoming_connection },
598   { US"outgoing_port",                LX_outgoing_port },
599   { US"queue_run",                    L_queue_run },
600   { US"queue_time",                   LX_queue_time },
601   { US"received_recipients",          LX_received_recipients },
602   { US"received_sender",              LX_received_sender },
603   { US"rejected_header",              LX_rejected_header },
604   { US"rejected_headers",             LX_rejected_header },
605   { US"retry_defer",                  L_retry_defer },
606   { US"return_path_on_delivery",      LX_return_path_on_delivery },
607   { US"sender_on_delivery",           LX_sender_on_delivery },
608   { US"size_reject",                  L_size_reject },
609   { US"skip_delivery",                L_skip_delivery },
610   { US"smtp_confirmation",            LX_smtp_confirmation },
611   { US"smtp_connection",              L_smtp_connection },
612   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
613   { US"smtp_protocol_error",          L_smtp_protocol_error },
614   { US"smtp_syntax_error",            L_smtp_syntax_error },
615   { US"subject",                      LX_subject },
616   { US"tls_certificate_verified",     LX_tls_certificate_verified },
617   { US"tls_cipher",                   LX_tls_cipher },
618   { US"tls_peerdn",                   LX_tls_peerdn }
619 };
620
621 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
622 unsigned int log_write_selector= L_default;
623 uschar *log_selector_string    = NULL;
624 FILE   *log_stderr             = NULL;
625 BOOL    log_testing_mode       = FALSE;
626 BOOL    log_timezone           = FALSE;
627 uschar *login_sender_address   = NULL;
628 int     lookup_open_max        = 25;
629 uschar *lookup_value           = NULL;
630
631 macro_item  *macros            = NULL;
632 uschar *mailstore_basename     = NULL;
633 int     max_username_length    = 0;
634 int     message_age            = 0;
635 uschar *message_body           = NULL;
636 uschar *message_body_end       = NULL;
637 int     message_body_size      = 0;
638 int     message_body_visible   = 500;
639 int     message_ended          = END_NOTSTARTED;
640 uschar *message_headers        = NULL;
641 uschar *message_id;
642 uschar *message_id_domain      = NULL;
643 uschar *message_id_text        = NULL;
644 struct timeval message_id_tv   = { 0, 0 };
645 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
646 uschar *message_id_external;
647 int     message_linecount      = 0;
648 BOOL    message_logs           = TRUE;
649 int     message_size           = 0;
650 uschar *message_size_limit     = US"50M";
651 uschar  message_subdir[2]      = { 0, 0 };
652 uschar *message_reference      = NULL;
653 BOOL    mua_wrapper            = FALSE;
654
655 uid_t  *never_users            = NULL;
656 BOOL    no_multiline_responses = FALSE;
657
658 uid_t   original_euid;
659 gid_t   originator_gid;
660 uschar *originator_login       = NULL;
661 uschar *originator_name        = NULL;
662 uid_t   originator_uid;
663 uschar *override_local_interfaces = NULL;
664 uschar *override_pid_file_path = NULL;
665
666 BOOL    parse_allow_group      = FALSE;
667 BOOL    parse_found_group      = FALSE;
668 uschar *percent_hack_domains   = NULL;
669 uschar *pid_file_path          = US PID_FILE_PATH
670                            "\0<--------------Space to patch pid_file_path->";
671 uschar *pipelining_advertise_hosts = US"*";
672 BOOL    preserve_message_logs  = FALSE;
673 uschar *primary_hostname       = NULL;
674 BOOL    print_topbitchars      = FALSE;
675 uschar  process_info[PROCESS_INFO_SIZE];
676 uschar *process_log_path       = NULL;
677 BOOL    prod_requires_admin    = TRUE;
678
679 uschar *qualify_domain_recipient = NULL;
680 uschar *qualify_domain_sender  = NULL;
681 BOOL    queue_2stage           = FALSE;
682 uschar *queue_domains          = NULL;
683 int     queue_interval         = -1;
684 BOOL    queue_list_requires_admin = TRUE;
685 BOOL    queue_only             = FALSE;
686 uschar *queue_only_file        = NULL;
687 int     queue_only_load        = -1;
688 BOOL    queue_only_override    = TRUE;
689 BOOL    queue_only_policy      = FALSE;
690 BOOL    queue_run_first_delivery = FALSE;
691 BOOL    queue_run_force        = FALSE;
692 BOOL    queue_run_in_order     = FALSE;
693 BOOL    queue_run_local        = FALSE;
694 int     queue_run_max          = 5;
695 pid_t   queue_run_pid          = (pid_t)0;
696 int     queue_run_pipe         = -1;
697 BOOL    queue_running          = FALSE;
698 BOOL    queue_smtp             = FALSE;
699 uschar *queue_smtp_domains     = NULL;
700
701 unsigned int random_seed       = 0;
702 uschar *raw_active_hostname    = NULL;
703 uschar *raw_sender             = NULL;
704 uschar **raw_recipients        = NULL;
705 int     raw_recipients_count   = 0;
706
707 int     rcpt_count             = 0;
708 int     rcpt_fail_count        = 0;
709 int     rcpt_defer_count       = 0;
710 gid_t   real_gid;
711 uid_t   real_uid;
712 BOOL    really_exim            = TRUE;
713 BOOL    receive_call_bombout   = FALSE;
714 int     receive_linecount      = 0;
715 int     receive_messagecount   = 0;
716 int     receive_timeout        = 0;
717 int     received_count         = 0;
718 uschar *received_for           = NULL;
719
720 /*  This is the default text for Received headers generated by Exim. The
721 date  will be automatically added on the end. */
722
723 uschar *received_header_text   = US
724      "Received: "
725      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
726      "{${if def:sender_ident {from $sender_ident }}"
727      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
728      "by $primary_hostname "
729      "${if def:received_protocol {with $received_protocol}} "
730      #ifdef SUPPORT_TLS
731      "${if def:tls_cipher {($tls_cipher)\n\t}}"
732      #endif
733      "(Exim $version_number)\n\t"
734      "id $message_id"
735      "${if def:received_for {\n\tfor $received_for}}"
736      "\0<---------------Space to patch received_header_text->";
737
738 int     received_headers_max   = 30;
739 uschar *received_protocol      = NULL;
740 int     received_time          = 0;
741 uschar *recipient_data         = NULL;
742 uschar *recipient_unqualified_hosts = NULL;
743 int     recipients_count       = 0;
744 BOOL    recipients_discarded   = FALSE;
745 recipient_item  *recipients_list = NULL;
746 int     recipients_list_max    = 0;
747 int     recipients_max         = 0;
748 BOOL    recipients_max_reject  = FALSE;
749 const pcre *regex_AUTH         = NULL;
750 const pcre *regex_check_dns_names = NULL;
751 const pcre *regex_From         = NULL;
752 const pcre *regex_PIPELINING   = NULL;
753 const pcre *regex_SIZE         = NULL;
754 const pcre *regex_ismsgid      = NULL;
755 int     remote_delivery_count  = 0;
756 int     remote_max_parallel    = 2;
757 uschar *remote_sort_domains    = NULL;
758 int     retry_data_expire      = 7*24*60*60;
759 int     retry_interval_max     = 24*60*60;
760 int     retry_maximum_timeout  = 0;        /* set from retry config */
761 retry_config  *retries         = NULL;
762 uschar *return_path            = NULL;
763 BOOL    return_path_remove     = TRUE;
764 int     rewrite_existflags     = 0;
765 uschar *rfc1413_hosts          = US"*";
766 int     rfc1413_query_timeout  = 30;
767 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
768 uid_t   root_uid               = ROOT_UID;
769
770 router_instance  *routers  = NULL;
771 router_instance  router_defaults = {
772     NULL,                      /* chain pointer */
773     NULL,                      /* name */
774     NULL,                      /* info */
775     NULL,                      /* private options block pointer */
776     NULL,                      /* driver name */
777
778     NULL,                      /* address_data */
779     NULL,                      /* cannot_route_message */
780     NULL,                      /* condition */
781     NULL,                      /* current_directory */
782     NULL,                      /* debug_string */
783     NULL,                      /* domains */
784     NULL,                      /* errors_to */
785     NULL,                      /* expand_gid */
786     NULL,                      /* expand_uid */
787     NULL,                      /* expand_more */
788     NULL,                      /* expand_unseen */
789     NULL,                      /* extra_headers */
790     NULL,                      /* fallback_hosts */
791     NULL,                      /* home_directory */
792     NULL,                      /* ignore_target_hosts */
793     NULL,                      /* local_parts */
794     NULL,                      /* pass_router_name */
795     NULL,                      /* prefix */
796     NULL,                      /* redirect_router_name */
797     NULL,                      /* remove_headers */
798     NULL,                      /* require_files */
799     NULL,                      /* router_home_directory */
800     US"freeze",                /* self */
801     NULL,                      /* senders */
802     NULL,                      /* suffix */
803     NULL,                      /* translate_ip_address */
804     NULL,                      /* transport_name */
805
806     TRUE,                      /* address_test */
807     TRUE,                      /* expn */
808     FALSE,                     /* caseful_local_part */
809     FALSE,                     /* check_local_user */
810     FALSE,                     /* disable_logging */
811     FALSE,                     /* fail_verify_recipient */
812     FALSE,                     /* fail_verify_sender */
813     FALSE,                     /* gid_set */
814     FALSE,                     /* initgroups */
815     TRUE_UNSET,                /* log_as_local */
816     TRUE,                      /* more */
817     FALSE,                     /* pass_on_timeout */
818     FALSE,                     /* prefix_optional */
819     TRUE,                      /* repeat_use */
820     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
821     FALSE,                     /* same_domain_copy_routing */
822     FALSE,                     /* self_rewrite */
823     FALSE,                     /* suffix_optional */
824     FALSE,                     /* verify_only */
825     TRUE,                      /* verify_recipient */
826     TRUE,                      /* verify_sender */
827     FALSE,                     /* uid_set */
828     FALSE,                     /* unseen */
829
830     self_freeze,               /* self_code */
831     (uid_t)(-1),               /* uid */
832     (gid_t)(-1),               /* gid */
833
834     NULL,                      /* fallback_hostlist */
835     NULL,                      /* transport instance */
836     NULL,                      /* pass_router */
837     NULL                       /* redirect_router */
838 };
839
840 ip_address_item *running_interfaces = NULL;
841 BOOL    running_in_test_harness = FALSE;
842
843 /* This is a weird one. The following string gets patched in the binary by the
844 script that sets up a copy of Exim for running in the test harness. It seems
845 that compilers are now clever, and share constant strings if they can.
846 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
847 make use of the end of this string in order to save space. So the patching then
848 wrecks this. We default this optimization by adding some additional characters
849 onto the end of the string. */
850
851 uschar *running_status         = US">>>running<<<" "\0EXTRA";
852
853 int     runrc                  = 0;
854
855 uschar *search_error_message   = NULL;
856 BOOL    search_find_defer      = FALSE;
857 uschar *self_hostname          = NULL;
858 uschar *sender_address         = NULL;
859 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
860 BOOL    sender_address_forced  = FALSE;
861 uschar *sender_address_unrewritten = NULL;
862 uschar *sender_data            = NULL;
863 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
864 uschar *sender_fullhost        = NULL;
865 uschar *sender_helo_name       = NULL;
866 uschar **sender_host_aliases   = &no_aliases;
867 uschar *sender_host_address    = NULL;
868 uschar *sender_host_authenticated = NULL;
869 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
870 uschar *sender_host_name       = NULL;
871 int     sender_host_port       = 0;
872 BOOL    sender_host_notsocket  = FALSE;
873 BOOL    sender_host_unknown    = FALSE;
874 uschar *sender_ident           = NULL;
875 BOOL    sender_local           = FALSE;
876 uschar *sender_rcvhost         = NULL;
877 BOOL    sender_set_untrusted   = FALSE;
878 uschar *sender_unqualified_hosts = NULL;
879 address_item *sender_verified_list  = NULL;
880 address_item *sender_verified_failed = NULL;
881 int     sender_verified_rc     = -1;
882 BOOL    sender_verified_responded = FALSE;
883 volatile  BOOL sigalrm_seen    = FALSE;
884 uschar **sighup_argv           = NULL;
885 int     smtp_accept_count      = 0;
886 BOOL    smtp_accept_keepalive  = TRUE;
887 int     smtp_accept_max        = 20;
888 int     smtp_accept_max_nonmail= 10;
889 uschar *smtp_accept_max_nonmail_hosts = US"*";
890 int     smtp_accept_max_per_connection = 1000;
891 uschar *smtp_accept_max_per_host = NULL;
892 int     smtp_accept_queue      = 0;
893 int     smtp_accept_queue_per_connection = 10;
894 int     smtp_accept_reserve    = 0;
895 uschar *smtp_active_hostname   = NULL;
896 BOOL    smtp_authenticated     = FALSE;
897 uschar *smtp_banner            = US"$primary_hostname ESMTP "
898                              "Exim $version_number $tod_full"
899                              "\0<---------------Space to patch smtp_banner->";
900 BOOL    smtp_batched_input     = FALSE;
901 BOOL    smtp_check_spool_space = TRUE;
902 uschar *smtp_command_argument  = NULL;
903 int     smtp_connect_backlog   = 20;
904 double  smtp_delay_mail        = 0.0;
905 double  smtp_delay_rcpt        = 0.0;
906 BOOL    smtp_enforce_sync      = TRUE;
907 FILE   *smtp_in                = NULL;
908 BOOL    smtp_input             = FALSE;
909 int     smtp_load_reserve      = -1;
910 int     smtp_mailcmd_count     = 0;
911 FILE   *smtp_out               = NULL;
912 uschar *smtp_etrn_command      = NULL;
913 BOOL    smtp_etrn_serialize    = TRUE;
914 int     smtp_max_synprot_errors= 3;
915 int     smtp_max_unknown_commands = 3;
916 uschar *smtp_ratelimit_hosts   = NULL;
917 uschar *smtp_ratelimit_mail    = NULL;
918 uschar *smtp_ratelimit_rcpt    = NULL;
919 uschar *smtp_read_error        = US"";
920 int     smtp_receive_timeout   = 5*60;
921 uschar *smtp_reserve_hosts     = NULL;
922 BOOL    smtp_return_error_details = FALSE;
923 int     smtp_rlm_base          = 0;
924 double  smtp_rlm_factor        = 0.0;
925 int     smtp_rlm_limit         = 0;
926 int     smtp_rlm_threshold     = INT_MAX;
927 int     smtp_rlr_base          = 0;
928 double  smtp_rlr_factor        = 0.0;
929 int     smtp_rlr_limit         = 0;
930 int     smtp_rlr_threshold     = INT_MAX;
931 BOOL    smtp_use_pipelining    = FALSE;
932 BOOL    smtp_use_size          = FALSE;
933 BOOL    split_spool_directory  = FALSE;
934 uschar *spool_directory        = US SPOOL_DIRECTORY
935                            "\0<--------------Space to patch spool_directory->";
936 int     string_datestamp_offset= -1;
937 BOOL    strip_excess_angle_brackets = FALSE;
938 BOOL    strip_trailing_dot     = FALSE;
939 uschar *submission_domain      = NULL;
940 BOOL    submission_mode        = FALSE;
941 BOOL    synchronous_delivery   = FALSE;
942 BOOL    syslog_duplication     = TRUE;
943 int     syslog_facility        = LOG_MAIL;
944 uschar *syslog_processname     = US"exim";
945 BOOL    syslog_timestamp       = TRUE;
946 uschar *system_filter          = NULL;
947
948 uschar *system_filter_directory_transport = NULL;
949 uschar *system_filter_file_transport = NULL;
950 uschar *system_filter_pipe_transport = NULL;
951 uschar *system_filter_reply_transport = NULL;
952
953 gid_t   system_filter_gid      = 0;
954 BOOL    system_filter_gid_set  = FALSE;
955 uid_t   system_filter_uid      = 0;
956 BOOL    system_filter_uid_set  = FALSE;
957 BOOL    system_filtering       = FALSE;
958
959 BOOL    tcp_nodelay            = TRUE;
960 int     thismessage_size_limit = 0;
961 int     timeout_frozen_after   = 0;
962 BOOL    timestamps_utc         = FALSE;
963
964 transport_instance  *transports = NULL;
965
966 transport_instance  transport_defaults = {
967     NULL,                     /* chain pointer */
968     NULL,                     /* name */
969     NULL,                     /* info */
970     NULL,                     /* private options block pointer */
971     NULL,                     /* driver name */
972     NULL,                     /* setup entry point */
973     1,                        /* batch_max */
974     NULL,                     /* batch_id */
975     NULL,                     /* home_dir */
976     NULL,                     /* current_dir */
977     TRUE,                     /* multi-domain */
978     FALSE,                    /* overrides_hosts */
979     100,                      /* max_addresses */
980     500,                      /* connection_max_messages */
981     FALSE,                    /* deliver_as_creator */
982     FALSE,                    /* disable_logging */
983     FALSE,                    /* initgroups */
984     FALSE,                    /* uid_set */
985     FALSE,                    /* gid_set */
986     (uid_t)(-1),              /* uid */
987     (gid_t)(-1),              /* gid */
988     NULL,                     /* expand_uid */
989     NULL,                     /* expand_gid */
990     NULL,                     /* warn_message */
991     NULL,                     /* shadow */
992     NULL,                     /* shadow_condition */
993     NULL,                     /* filter_command */
994     NULL,                     /* add_headers */
995     NULL,                     /* remove_headers */
996     NULL,                     /* return_path */
997     NULL,                     /* debug_string */
998     NULL,                     /* message_size_limit */
999     NULL,                     /* headers_rewrite */
1000     NULL,                     /* rewrite_rules */
1001     0,                        /* rewrite_existflags */
1002     300,                      /* filter_timeout */
1003     FALSE,                    /* body_only */
1004     FALSE,                    /* delivery_date_add */
1005     FALSE,                    /* envelope_to_add */
1006     FALSE,                    /* headers_only */
1007     FALSE,                    /* rcpt_include_affixes */
1008     FALSE,                    /* return_path_add */
1009     FALSE,                    /* return_output */
1010     FALSE,                    /* return_fail_output */
1011     FALSE,                    /* log_output */
1012     FALSE,                    /* log_fail_output */
1013     FALSE,                    /* log_defer_output */
1014     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1015                                  1 nor 0 so can detect unset */
1016 };
1017
1018 int     transport_count;
1019 uschar **transport_filter_argv  = NULL;
1020 int     transport_filter_timeout;
1021 int     transport_write_timeout= 0;
1022
1023 tree_node  *tree_dns_fails     = NULL;
1024 tree_node  *tree_duplicates    = NULL;
1025 tree_node  *tree_nonrecipients = NULL;
1026 tree_node  *tree_unusable      = NULL;
1027
1028 BOOL    trusted_caller         = FALSE;
1029 gid_t  *trusted_groups         = NULL;
1030 uid_t  *trusted_users          = NULL;
1031 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1032
1033 uschar *unknown_login          = NULL;
1034 uschar *unknown_username       = NULL;
1035 uschar *untrusted_set_sender   = NULL;
1036
1037 /*  A regex for matching a "From_" line in an incoming message, in the form
1038
1039     From ph10 Fri Jan  5 12:35 GMT 1996
1040
1041 which  the "mail" commands send to the MTA (undocumented, of course), or in
1042 the  form
1043
1044     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1045
1046 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1047 Because  of variations in time formats, just match up to the minutes. That
1048 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1049 so  just require one digit for hours and minutes. The weekday is also absent
1050 in  some forms. */
1051
1052 uschar *uucp_from_pattern      = US
1053    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1054    "(?:"                                          /* Non-extracting bracket */
1055    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1056    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1057    ")"                                            /* End alternation */
1058    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1059
1060 uschar *uucp_from_sender       = US"$1";
1061
1062 uschar *warn_message_file      = NULL;
1063 uschar *warnmsg_delay          = NULL;
1064 uschar *warnmsg_recipients     = NULL;
1065 BOOL    write_rejectlog        = TRUE;
1066
1067 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1068 uschar *version_date           = US"?";
1069 uschar *version_cnumber        = US"????";
1070 uschar *version_string         = US"?";
1071
1072 int     warning_count          = 0;
1073
1074 /*  End of globals.c */