Added -dd for daemon debugging.
[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.6 2004/11/10 10:29:56 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    active_local_from_check = FALSE;
214 BOOL    active_local_sender_retain = FALSE;
215 BOOL    accept_8bitmime        = FALSE;
216 address_item  *addr_duplicate  = NULL;
217
218 address_item address_defaults = {
219   NULL,                 /* next */
220   NULL,                 /* parent */
221   NULL,                 /* first */
222   NULL,                 /* dupof */
223   NULL,                 /* start_router */
224   NULL,                 /* router */
225   NULL,                 /* transport */
226   NULL,                 /* host_list */
227   NULL,                 /* host_used */
228   NULL,                 /* fallback_hosts */
229   NULL,                 /* reply */
230   NULL,                 /* retries */
231   NULL,                 /* address */
232   NULL,                 /* unique */
233   NULL,                 /* cc_local_part */
234   NULL,                 /* lc_local_part */
235   NULL,                 /* local_part */
236   NULL,                 /* prefix */
237   NULL,                 /* suffix */
238   NULL,                 /* domain */
239   NULL,                 /* address_retry_key */
240   NULL,                 /* domain_retry_key */
241   NULL,                 /* current_dir */
242   NULL,                 /* home_dir */
243   NULL,                 /* message */
244   NULL,                 /* user_message */
245   NULL,                 /* onetime_parent */
246   NULL,                 /* pipe_expandn */
247   NULL,                 /* return_filename */
248   NULL,                 /* self_hostname */
249   NULL,                 /* shadow_message */
250   #ifdef SUPPORT_TLS
251   NULL,                 /* cipher */
252   NULL,                 /* peerdn */
253   #endif
254   (uid_t)(-1),          /* uid */
255   (gid_t)(-1),          /* gid */
256   0,                    /* flags */
257   { 0 },                /* domain_cache - any larger array should be zeroed */
258   { 0 },                /* localpart_cache - ditto */
259   -1,                   /* mode */
260   0,                    /* more_errno */
261   ERRNO_UNKNOWNERROR,   /* basic_errno */
262   0,                    /* child_count */
263   -1,                   /* return_file */
264   SPECIAL_NONE,         /* special_action */
265   DEFER,                /* transport_return */
266   {                     /* fields that are propagated to children */
267     NULL,               /* address_data */
268     NULL,               /* domain_data */
269     NULL,               /* localpart_data */
270     NULL,               /* errors_address */
271     NULL,               /* extra_headers */
272     NULL,               /* remove_headers */
273   }
274 };
275
276 uschar *address_file           = NULL;
277 uschar *address_pipe           = NULL;
278 BOOL    address_test_mode      = FALSE;
279 tree_node *addresslist_anchor  = NULL;
280 int     addresslist_count      = 0;
281 gid_t  *admin_groups           = NULL;
282 BOOL    admin_user             = FALSE;
283 BOOL    allow_domain_literals  = FALSE;
284 BOOL    allow_mx_to_ip         = FALSE;
285 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
286 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
287 BOOL    allow_utf8_domains     = FALSE;
288 uschar *authenticated_id       = NULL;
289 uschar *authenticated_sender   = NULL;
290 BOOL    authentication_failed  = FALSE;
291 auth_instance  *auths          = NULL;
292 uschar *auth_advertise_hosts   = US"*";
293 auth_instance auth_defaults    = {
294     NULL,                      /* chain pointer */
295     NULL,                      /* name */
296     NULL,                      /* info */
297     NULL,                      /* private options block pointer */
298     NULL,                      /* driver_name */
299     NULL,                      /* advertise_condition */
300     NULL,                      /* public_name */
301     NULL,                      /* set_id */
302     NULL,                      /* server_mail_auth_condition */
303     NULL,                      /* server_debug_string */
304     FALSE,                     /* client */
305     FALSE,                     /* server */
306     FALSE                      /* advertised */
307 };
308
309 uschar *auth_defer_msg         = US"reason not recorded";
310 uschar *auth_defer_user_msg    = US"";
311 int     auto_thaw              = 0;
312
313 BOOL    background_daemon      = TRUE;
314 uschar *base62_chars=
315     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
316 uschar *bi_command             = NULL;
317 uschar *big_buffer             = NULL;
318 int     big_buffer_size        = BIG_BUFFER_SIZE;
319 int     body_linecount         = 0;
320 int     body_zerocount         = 0;
321 uschar *bounce_message_file    = NULL;
322 uschar *bounce_message_text    = NULL;
323 uschar *bounce_recipient       = NULL;
324 BOOL    bounce_return_body     = TRUE;
325 BOOL    bounce_return_message  = TRUE;
326 int     bounce_return_size_limit = 100*1024;
327 uschar *bounce_sender_authentication = NULL;
328 int     bsmtp_transaction_linecount = 0;
329
330 int     callout_cache_domain_positive_expire = 7*24*60*60;
331 int     callout_cache_domain_negative_expire = 3*60*60;
332 int     callout_cache_positive_expire = 24*60*60;
333 int     callout_cache_negative_expire = 2*60*60;
334 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
335 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W_](?>[a-z0-9-]*[^\\W_])?)+$";
336 int     check_log_inodes       = 0;
337 int     check_log_space        = 0;
338 int     check_spool_inodes     = 0;
339 int     check_spool_space      = 0;
340 int     clmacro_count          = 0;
341 uschar *clmacros[MAX_CLMACROS];
342 BOOL    config_changed         = FALSE;
343 FILE   *config_file            = NULL;
344 uschar *config_filename        = NULL;
345 int     config_lineno          = 0;
346 #ifdef CONFIGURE_GROUP
347 gid_t   config_gid             = CONFIGURE_GROUP;
348 #endif
349 uschar *config_main_filelist   = US CONFIGURE_FILE
350                          "\0<-----------Space to patch configure_filename->";
351 uschar *config_main_filename   = NULL;
352
353 #ifdef CONFIGURE_OWNER
354 uid_t   config_uid             = CONFIGURE_OWNER;
355 #endif
356
357 int     connection_max_messages= -1;
358 uschar *continue_hostname      = NULL;
359 uschar *continue_host_address  = NULL;
360 BOOL    continue_more          = FALSE;
361 int     continue_sequence      = 1;
362 uschar *continue_transport     = NULL;
363
364 BOOL    daemon_listen          = FALSE;
365 uschar *daemon_smtp_port       = US"smtp";
366 BOOL    debug_daemon           = FALSE;
367 int     debug_fd               = -1;
368 FILE   *debug_file             = NULL;
369 bit_table debug_options[]      = {
370   { US"acl",            D_acl },
371   { US"all",            D_all },
372   { US"auth",           D_auth },
373   { US"deliver",        D_deliver },
374   { US"dns",            D_dns },
375   { US"dnsbl",          D_dnsbl },
376   { US"exec",           D_exec },
377   { US"expand",         D_expand },
378   { US"filter",         D_filter },
379   { US"hints_lookup",   D_hints_lookup },
380   { US"host_lookup",    D_host_lookup },
381   { US"ident",          D_ident },
382   { US"interface",      D_interface },
383   { US"lists",          D_lists },
384   { US"load",           D_load },
385   { US"local_scan",     D_local_scan },
386   { US"lookup",         D_lookup },
387   { US"memory",         D_memory },
388   { US"pid",            D_pid },
389   { US"process_info",   D_process_info },
390   { US"queue_run",      D_queue_run },
391   { US"receive",        D_receive },
392   { US"resolver",       D_resolver },
393   { US"retry",          D_retry },
394   { US"rewrite",        D_rewrite },
395   { US"route",          D_route },
396   { US"timestamp",      D_timestamp },
397   { US"tls",            D_tls },
398   { US"transport",      D_transport },
399   { US"uid",            D_uid },
400   { US"verify",         D_verify }
401 };
402 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
403 unsigned int debug_selector    = 0;
404 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
405 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
406 BOOL    delivery_date_remove   = TRUE;
407 uschar *deliver_address_data   = NULL;
408 int     deliver_datafile       = -1;
409 uschar *deliver_domain         = NULL;
410 uschar *deliver_domain_data    = NULL;
411 uschar *deliver_domain_orig    = NULL;
412 uschar *deliver_domain_parent  = NULL;
413 BOOL    deliver_drop_privilege = FALSE;
414 BOOL    deliver_firsttime      = FALSE;
415 BOOL    deliver_force          = FALSE;
416 BOOL    deliver_freeze         = FALSE;
417 int     deliver_frozen_at      = 0;
418 uschar *deliver_home           = NULL;
419 uschar *deliver_host           = NULL;
420 uschar *deliver_host_address   = NULL;
421 uschar *deliver_in_buffer      = NULL;
422 ino_t   deliver_inode          = 0;
423 uschar *deliver_localpart      = NULL;
424 uschar *deliver_localpart_data = NULL;
425 uschar *deliver_localpart_orig = NULL;
426 uschar *deliver_localpart_parent = NULL;
427 uschar *deliver_localpart_prefix = NULL;
428 uschar *deliver_localpart_suffix = NULL;
429 BOOL    deliver_force_thaw     = FALSE;
430 BOOL    deliver_manual_thaw    = FALSE;
431 uschar *deliver_out_buffer     = NULL;
432 int     deliver_queue_load_max = -1;
433 address_item  *deliver_recipients = NULL;
434 uschar *deliver_selectstring   = NULL;
435 BOOL    deliver_selectstring_regex = FALSE;
436 uschar *deliver_selectstring_sender = NULL;
437 BOOL    deliver_selectstring_sender_regex = FALSE;
438 BOOL    disable_logging        = FALSE;
439
440 uschar *dns_again_means_nonexist = NULL;
441 uschar *dns_ipv4_lookup        = NULL;
442 int     dns_retrans            = 0;
443 int     dns_retry              = 0;
444 uschar *dnslist_domain         = NULL;
445 uschar *dnslist_text           = NULL;
446 uschar *dnslist_value          = NULL;
447 tree_node *domainlist_anchor   = NULL;
448 int     domainlist_count       = 0;
449 BOOL    dont_deliver           = FALSE;
450 BOOL    dot_ends               = TRUE;
451 BOOL    drop_cr                = FALSE;         /* No longer used */
452
453 BOOL    enable_dollar_recipients = FALSE;
454 BOOL    envelope_to_remove     = TRUE;
455 int     errno_quota            = ERRNO_QUOTA;
456 uschar *errors_copy            = NULL;
457 int     error_handling         = ERRORS_SENDER;
458 uschar *errors_reply_to        = NULL;
459 int     errors_sender_rc       = EXIT_FAILURE;
460
461 gid_t   exim_gid               = EXIM_GID;
462 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
463 uschar *exim_path              = US BIN_DIRECTORY "/exim"
464                         "\0<---------------Space to patch exim_path->";
465 uid_t   exim_uid               = EXIM_UID;
466 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
467 int     expand_forbid          = 0;
468 int     expand_nlength[EXPAND_MAXN+1];
469 int     expand_nmax            = -1;
470 uschar *expand_nstring[EXPAND_MAXN+1];
471 BOOL    expand_string_forcedfail = FALSE;
472 uschar *expand_string_message;
473 BOOL    extract_addresses_remove_arguments = TRUE;
474 uschar *extra_local_interfaces = NULL;
475
476 int     filter_n[FILTER_VARIABLE_COUNT];
477 BOOL    filter_running         = FALSE;
478 int     filter_sn[FILTER_VARIABLE_COUNT];
479 uschar *filter_test            = NULL;
480 uschar *filter_thisaddress     = NULL;
481 int     finduser_retries       = 0;
482 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
483 uschar *freeze_tell            = NULL;
484 uschar *fudged_queue_times     = US"";
485
486 uschar *gecos_name             = NULL;
487 uschar *gecos_pattern          = NULL;
488 rewrite_rule  *global_rewrite_rules = NULL;
489
490 uschar *headers_charset        = US HEADERS_CHARSET;
491 int     header_insert_maxlen   = 64 * 1024;
492 header_line  *header_last      = NULL;
493 header_line  *header_list      = NULL;
494 int     header_maxsize         = HEADER_MAXSIZE;
495 int     header_line_maxsize    = 0;
496
497 header_name header_names[] = {
498   { US"bcc",            3, TRUE,  htype_bcc },
499   { US"cc",             2, TRUE,  htype_cc },
500   { US"date",           4, TRUE,  htype_date },
501   { US"delivery-date", 13, FALSE, htype_delivery_date },
502   { US"envelope-to",   11, FALSE, htype_envelope_to },
503   { US"from",           4, TRUE,  htype_from },
504   { US"message-id",    10, TRUE,  htype_id },
505   { US"received",       8, FALSE, htype_received },
506   { US"reply-to",       8, FALSE, htype_reply_to },
507   { US"return-path",   11, FALSE, htype_return_path },
508   { US"sender",         6, TRUE,  htype_sender },
509   { US"subject",        7, FALSE, htype_subject },
510   { US"to",             2, TRUE,  htype_to }
511 };
512
513 int header_names_size          = sizeof(header_names)/sizeof(header_name);
514
515 BOOL    header_rewritten       = FALSE;
516 uschar *helo_accept_junk_hosts = NULL;
517 uschar *helo_allow_chars       = US"";
518 uschar *helo_lookup_domains    = US"@ : @[]";
519 uschar *helo_try_verify_hosts  = NULL;
520 BOOL    helo_verified          = FALSE;
521 uschar *helo_verify_hosts      = NULL;
522 uschar *hex_digits             = US"0123456789abcdef";
523 uschar *hold_domains           = NULL;
524 BOOL    host_checking          = FALSE;
525 BOOL    host_checking_callout  = FALSE;
526 uschar *host_data              = NULL;
527 BOOL    host_find_failed_syntax= FALSE;
528 uschar *host_lookup            = NULL;
529 BOOL    host_lookup_failed     = FALSE;
530 uschar *host_lookup_order      = US"bydns:byaddr";
531 uschar *host_lookup_msg        = US"";
532 int     host_number            = 0;
533 uschar *host_number_string     = NULL;
534 uschar *host_reject_connection = NULL;
535 tree_node *hostlist_anchor     = NULL;
536 int     hostlist_count         = 0;
537 uschar *hosts_treat_as_local   = NULL;
538 uschar *hosts_connection_nolog = NULL;
539
540 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
541 BOOL    ignore_fromline_local  = FALSE;
542 uschar *ignore_fromline_hosts  = NULL;
543 uschar *interface_address      = NULL;
544 int     interface_port         = -1;
545 BOOL    is_inetd               = FALSE;
546
547 int     journal_fd             = -1;
548
549 int     keep_malformed         = 4*24*60*60;    /* 4 days */
550
551 uschar *eldap_dn               = NULL;
552 int     load_average           = -2;
553 BOOL    local_error_message    = FALSE;
554 BOOL    local_from_check       = TRUE;
555 uschar *local_from_prefix      = NULL;
556 uschar *local_from_suffix      = NULL;
557
558 #if HAVE_IPV6
559 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
560 #else
561 uschar *local_interfaces       = US"0.0.0.0";
562 #endif
563
564 uschar *local_scan_data        = NULL;
565 int     local_scan_timeout     = 5*60;
566 BOOL    local_sender_retain    = FALSE;
567 gid_t   local_user_gid         = (gid_t)(-1);
568 uid_t   local_user_uid         = (uid_t)(-1);
569
570 tree_node *localpartlist_anchor= NULL;
571 int     localpartlist_count    = 0;
572 uschar *log_buffer             = NULL;
573 unsigned int log_extra_selector = LX_default;
574 uschar *log_file_path          = US LOG_FILE_PATH
575                            "\0<--------------Space to patch log_file_path->";
576
577 /* Those log options with L_xxx identifiers have values less than 0x800000 and
578 are the ones that get put into log_write_selector. They can be used in calls to
579 log_write() to test for the bit. The options with LX_xxx identifiers have
580 values greater than 0x80000000 and are put int log_extra_selector (without the
581 top bit). They are never used in calls to log_write(), but are tested
582 independently. This separation became necessary when the number of log
583 selectors was getting close to filling a 32-bit word. */
584
585 bit_table log_options[]        = {
586   { US"address_rewrite",              L_address_rewrite },
587   { US"all",                          L_all },
588   { US"all_parents",                  L_all_parents },
589   { US"arguments",                    LX_arguments },
590   { US"connection_reject",            L_connection_reject },
591   { US"delay_delivery",               L_delay_delivery },
592   { US"deliver_time",                 LX_deliver_time },
593   { US"delivery_size",                LX_delivery_size },
594   { US"dnslist_defer",                L_dnslist_defer },
595   { US"etrn",                         L_etrn },
596   { US"host_lookup_failed",           L_host_lookup_failed },
597   { US"ident_timeout",                LX_ident_timeout },
598   { US"incoming_interface",           LX_incoming_interface },
599   { US"incoming_port",                LX_incoming_port },
600   { US"lost_incoming_connection",     L_lost_incoming_connection },
601   { US"outgoing_port",                LX_outgoing_port },
602   { US"queue_run",                    L_queue_run },
603   { US"queue_time",                   LX_queue_time },
604   { US"received_recipients",          LX_received_recipients },
605   { US"received_sender",              LX_received_sender },
606   { US"rejected_header",              LX_rejected_header },
607   { US"rejected_headers",             LX_rejected_header },
608   { US"retry_defer",                  L_retry_defer },
609   { US"return_path_on_delivery",      LX_return_path_on_delivery },
610   { US"sender_on_delivery",           LX_sender_on_delivery },
611   { US"size_reject",                  L_size_reject },
612   { US"skip_delivery",                L_skip_delivery },
613   { US"smtp_confirmation",            LX_smtp_confirmation },
614   { US"smtp_connection",              L_smtp_connection },
615   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
616   { US"smtp_protocol_error",          L_smtp_protocol_error },
617   { US"smtp_syntax_error",            L_smtp_syntax_error },
618   { US"subject",                      LX_subject },
619   { US"tls_certificate_verified",     LX_tls_certificate_verified },
620   { US"tls_cipher",                   LX_tls_cipher },
621   { US"tls_peerdn",                   LX_tls_peerdn }
622 };
623
624 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
625 unsigned int log_write_selector= L_default;
626 uschar *log_selector_string    = NULL;
627 FILE   *log_stderr             = NULL;
628 BOOL    log_testing_mode       = FALSE;
629 BOOL    log_timezone           = FALSE;
630 uschar *login_sender_address   = NULL;
631 int     lookup_open_max        = 25;
632 uschar *lookup_value           = NULL;
633
634 macro_item  *macros            = NULL;
635 uschar *mailstore_basename     = NULL;
636 int     max_username_length    = 0;
637 int     message_age            = 0;
638 uschar *message_body           = NULL;
639 uschar *message_body_end       = NULL;
640 int     message_body_size      = 0;
641 int     message_body_visible   = 500;
642 int     message_ended          = END_NOTSTARTED;
643 uschar *message_headers        = NULL;
644 uschar *message_id;
645 uschar *message_id_domain      = NULL;
646 uschar *message_id_text        = NULL;
647 struct timeval message_id_tv   = { 0, 0 };
648 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
649 uschar *message_id_external;
650 int     message_linecount      = 0;
651 BOOL    message_logs           = TRUE;
652 int     message_size           = 0;
653 uschar *message_size_limit     = US"50M";
654 uschar  message_subdir[2]      = { 0, 0 };
655 uschar *message_reference      = NULL;
656 BOOL    mua_wrapper            = FALSE;
657
658 uid_t  *never_users            = NULL;
659 BOOL    no_multiline_responses = FALSE;
660
661 uid_t   original_euid;
662 gid_t   originator_gid;
663 uschar *originator_login       = NULL;
664 uschar *originator_name        = NULL;
665 uid_t   originator_uid;
666 uschar *override_local_interfaces = NULL;
667 uschar *override_pid_file_path = NULL;
668
669 BOOL    parse_allow_group      = FALSE;
670 BOOL    parse_found_group      = FALSE;
671 uschar *percent_hack_domains   = NULL;
672 uschar *pid_file_path          = US PID_FILE_PATH
673                            "\0<--------------Space to patch pid_file_path->";
674 uschar *pipelining_advertise_hosts = US"*";
675 BOOL    preserve_message_logs  = FALSE;
676 uschar *primary_hostname       = NULL;
677 BOOL    print_topbitchars      = FALSE;
678 uschar  process_info[PROCESS_INFO_SIZE];
679 uschar *process_log_path       = NULL;
680 BOOL    prod_requires_admin    = TRUE;
681
682 uschar *qualify_domain_recipient = NULL;
683 uschar *qualify_domain_sender  = NULL;
684 BOOL    queue_2stage           = FALSE;
685 uschar *queue_domains          = NULL;
686 int     queue_interval         = -1;
687 BOOL    queue_list_requires_admin = TRUE;
688 BOOL    queue_only             = FALSE;
689 uschar *queue_only_file        = NULL;
690 int     queue_only_load        = -1;
691 BOOL    queue_only_override    = TRUE;
692 BOOL    queue_only_policy      = FALSE;
693 BOOL    queue_run_first_delivery = FALSE;
694 BOOL    queue_run_force        = FALSE;
695 BOOL    queue_run_in_order     = FALSE;
696 BOOL    queue_run_local        = FALSE;
697 int     queue_run_max          = 5;
698 pid_t   queue_run_pid          = (pid_t)0;
699 int     queue_run_pipe         = -1;
700 BOOL    queue_running          = FALSE;
701 BOOL    queue_smtp             = FALSE;
702 uschar *queue_smtp_domains     = NULL;
703
704 unsigned int random_seed       = 0;
705 uschar *raw_active_hostname    = NULL;
706 uschar *raw_sender             = NULL;
707 uschar **raw_recipients        = NULL;
708 int     raw_recipients_count   = 0;
709
710 int     rcpt_count             = 0;
711 int     rcpt_fail_count        = 0;
712 int     rcpt_defer_count       = 0;
713 gid_t   real_gid;
714 uid_t   real_uid;
715 BOOL    really_exim            = TRUE;
716 BOOL    receive_call_bombout   = FALSE;
717 int     receive_linecount      = 0;
718 int     receive_messagecount   = 0;
719 int     receive_timeout        = 0;
720 int     received_count         = 0;
721 uschar *received_for           = NULL;
722
723 /*  This is the default text for Received headers generated by Exim. The
724 date  will be automatically added on the end. */
725
726 uschar *received_header_text   = US
727      "Received: "
728      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
729      "{${if def:sender_ident {from $sender_ident }}"
730      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
731      "by $primary_hostname "
732      "${if def:received_protocol {with $received_protocol}} "
733      #ifdef SUPPORT_TLS
734      "${if def:tls_cipher {($tls_cipher)\n\t}}"
735      #endif
736      "(Exim $version_number)\n\t"
737      "id $message_id"
738      "${if def:received_for {\n\tfor $received_for}}"
739      "\0<---------------Space to patch received_header_text->";
740
741 int     received_headers_max   = 30;
742 uschar *received_protocol      = NULL;
743 int     received_time          = 0;
744 uschar *recipient_data         = NULL;
745 uschar *recipient_unqualified_hosts = NULL;
746 uschar *recipient_verify_failure = NULL;
747 int     recipients_count       = 0;
748 BOOL    recipients_discarded   = FALSE;
749 recipient_item  *recipients_list = NULL;
750 int     recipients_list_max    = 0;
751 int     recipients_max         = 0;
752 BOOL    recipients_max_reject  = FALSE;
753 const pcre *regex_AUTH         = NULL;
754 const pcre *regex_check_dns_names = NULL;
755 const pcre *regex_From         = NULL;
756 const pcre *regex_PIPELINING   = NULL;
757 const pcre *regex_SIZE         = NULL;
758 const pcre *regex_ismsgid      = NULL;
759 int     remote_delivery_count  = 0;
760 int     remote_max_parallel    = 2;
761 uschar *remote_sort_domains    = NULL;
762 int     retry_data_expire      = 7*24*60*60;
763 int     retry_interval_max     = 24*60*60;
764 int     retry_maximum_timeout  = 0;        /* set from retry config */
765 retry_config  *retries         = NULL;
766 uschar *return_path            = NULL;
767 BOOL    return_path_remove     = TRUE;
768 int     rewrite_existflags     = 0;
769 uschar *rfc1413_hosts          = US"*";
770 int     rfc1413_query_timeout  = 30;
771 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
772 uid_t   root_uid               = ROOT_UID;
773
774 router_instance  *routers  = NULL;
775 router_instance  router_defaults = {
776     NULL,                      /* chain pointer */
777     NULL,                      /* name */
778     NULL,                      /* info */
779     NULL,                      /* private options block pointer */
780     NULL,                      /* driver name */
781
782     NULL,                      /* address_data */
783     NULL,                      /* cannot_route_message */
784     NULL,                      /* condition */
785     NULL,                      /* current_directory */
786     NULL,                      /* debug_string */
787     NULL,                      /* domains */
788     NULL,                      /* errors_to */
789     NULL,                      /* expand_gid */
790     NULL,                      /* expand_uid */
791     NULL,                      /* expand_more */
792     NULL,                      /* expand_unseen */
793     NULL,                      /* extra_headers */
794     NULL,                      /* fallback_hosts */
795     NULL,                      /* home_directory */
796     NULL,                      /* ignore_target_hosts */
797     NULL,                      /* local_parts */
798     NULL,                      /* pass_router_name */
799     NULL,                      /* prefix */
800     NULL,                      /* redirect_router_name */
801     NULL,                      /* remove_headers */
802     NULL,                      /* require_files */
803     NULL,                      /* router_home_directory */
804     US"freeze",                /* self */
805     NULL,                      /* senders */
806     NULL,                      /* suffix */
807     NULL,                      /* translate_ip_address */
808     NULL,                      /* transport_name */
809
810     TRUE,                      /* address_test */
811     TRUE,                      /* expn */
812     FALSE,                     /* caseful_local_part */
813     FALSE,                     /* check_local_user */
814     FALSE,                     /* disable_logging */
815     FALSE,                     /* fail_verify_recipient */
816     FALSE,                     /* fail_verify_sender */
817     FALSE,                     /* gid_set */
818     FALSE,                     /* initgroups */
819     TRUE_UNSET,                /* log_as_local */
820     TRUE,                      /* more */
821     FALSE,                     /* pass_on_timeout */
822     FALSE,                     /* prefix_optional */
823     TRUE,                      /* repeat_use */
824     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
825     FALSE,                     /* same_domain_copy_routing */
826     FALSE,                     /* self_rewrite */
827     FALSE,                     /* suffix_optional */
828     FALSE,                     /* verify_only */
829     TRUE,                      /* verify_recipient */
830     TRUE,                      /* verify_sender */
831     FALSE,                     /* uid_set */
832     FALSE,                     /* unseen */
833
834     self_freeze,               /* self_code */
835     (uid_t)(-1),               /* uid */
836     (gid_t)(-1),               /* gid */
837
838     NULL,                      /* fallback_hostlist */
839     NULL,                      /* transport instance */
840     NULL,                      /* pass_router */
841     NULL                       /* redirect_router */
842 };
843
844 ip_address_item *running_interfaces = NULL;
845 BOOL    running_in_test_harness = FALSE;
846
847 /* This is a weird one. The following string gets patched in the binary by the
848 script that sets up a copy of Exim for running in the test harness. It seems
849 that compilers are now clever, and share constant strings if they can.
850 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
851 make use of the end of this string in order to save space. So the patching then
852 wrecks this. We default this optimization by adding some additional characters
853 onto the end of the string. */
854
855 uschar *running_status         = US">>>running<<<" "\0EXTRA";
856
857 int     runrc                  = 0;
858
859 uschar *search_error_message   = NULL;
860 BOOL    search_find_defer      = FALSE;
861 uschar *self_hostname          = NULL;
862 uschar *sender_address         = NULL;
863 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
864 uschar *sender_address_data    = NULL;
865 BOOL    sender_address_forced  = FALSE;
866 uschar *sender_address_unrewritten = NULL;
867 uschar *sender_data            = NULL;
868 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
869 uschar *sender_fullhost        = NULL;
870 uschar *sender_helo_name       = NULL;
871 uschar **sender_host_aliases   = &no_aliases;
872 uschar *sender_host_address    = NULL;
873 uschar *sender_host_authenticated = NULL;
874 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
875 uschar *sender_host_name       = NULL;
876 int     sender_host_port       = 0;
877 BOOL    sender_host_notsocket  = FALSE;
878 BOOL    sender_host_unknown    = FALSE;
879 uschar *sender_ident           = NULL;
880 BOOL    sender_local           = FALSE;
881 uschar *sender_rcvhost         = NULL;
882 BOOL    sender_set_untrusted   = FALSE;
883 uschar *sender_unqualified_hosts = NULL;
884 uschar *sender_verify_failure = NULL;
885 address_item *sender_verified_list  = NULL;
886 address_item *sender_verified_failed = NULL;
887 int     sender_verified_rc     = -1;
888 BOOL    sender_verified_responded = FALSE;
889 volatile  BOOL sigalrm_seen    = FALSE;
890 uschar **sighup_argv           = NULL;
891 int     smtp_accept_count      = 0;
892 BOOL    smtp_accept_keepalive  = TRUE;
893 int     smtp_accept_max        = 20;
894 int     smtp_accept_max_nonmail= 10;
895 uschar *smtp_accept_max_nonmail_hosts = US"*";
896 int     smtp_accept_max_per_connection = 1000;
897 uschar *smtp_accept_max_per_host = NULL;
898 int     smtp_accept_queue      = 0;
899 int     smtp_accept_queue_per_connection = 10;
900 int     smtp_accept_reserve    = 0;
901 uschar *smtp_active_hostname   = NULL;
902 BOOL    smtp_authenticated     = FALSE;
903 uschar *smtp_banner            = US"$primary_hostname ESMTP "
904                              "Exim $version_number $tod_full"
905                              "\0<---------------Space to patch smtp_banner->";
906 BOOL    smtp_batched_input     = FALSE;
907 BOOL    smtp_check_spool_space = TRUE;
908 uschar *smtp_command_argument  = NULL;
909 int     smtp_connect_backlog   = 20;
910 double  smtp_delay_mail        = 0.0;
911 double  smtp_delay_rcpt        = 0.0;
912 BOOL    smtp_enforce_sync      = TRUE;
913 FILE   *smtp_in                = NULL;
914 BOOL    smtp_input             = FALSE;
915 int     smtp_load_reserve      = -1;
916 int     smtp_mailcmd_count     = 0;
917 FILE   *smtp_out               = NULL;
918 uschar *smtp_etrn_command      = NULL;
919 BOOL    smtp_etrn_serialize    = TRUE;
920 int     smtp_max_synprot_errors= 3;
921 int     smtp_max_unknown_commands = 3;
922 uschar *smtp_ratelimit_hosts   = NULL;
923 uschar *smtp_ratelimit_mail    = NULL;
924 uschar *smtp_ratelimit_rcpt    = NULL;
925 uschar *smtp_read_error        = US"";
926 int     smtp_receive_timeout   = 5*60;
927 uschar *smtp_reserve_hosts     = NULL;
928 BOOL    smtp_return_error_details = FALSE;
929 int     smtp_rlm_base          = 0;
930 double  smtp_rlm_factor        = 0.0;
931 int     smtp_rlm_limit         = 0;
932 int     smtp_rlm_threshold     = INT_MAX;
933 int     smtp_rlr_base          = 0;
934 double  smtp_rlr_factor        = 0.0;
935 int     smtp_rlr_limit         = 0;
936 int     smtp_rlr_threshold     = INT_MAX;
937 BOOL    smtp_use_pipelining    = FALSE;
938 BOOL    smtp_use_size          = FALSE;
939 BOOL    split_spool_directory  = FALSE;
940 uschar *spool_directory        = US SPOOL_DIRECTORY
941                            "\0<--------------Space to patch spool_directory->";
942 int     string_datestamp_offset= -1;
943 BOOL    strip_excess_angle_brackets = FALSE;
944 BOOL    strip_trailing_dot     = FALSE;
945 uschar *submission_domain      = NULL;
946 BOOL    submission_mode        = FALSE;
947 BOOL    synchronous_delivery   = FALSE;
948 BOOL    syslog_duplication     = TRUE;
949 int     syslog_facility        = LOG_MAIL;
950 uschar *syslog_processname     = US"exim";
951 BOOL    syslog_timestamp       = TRUE;
952 uschar *system_filter          = NULL;
953
954 uschar *system_filter_directory_transport = NULL;
955 uschar *system_filter_file_transport = NULL;
956 uschar *system_filter_pipe_transport = NULL;
957 uschar *system_filter_reply_transport = NULL;
958
959 gid_t   system_filter_gid      = 0;
960 BOOL    system_filter_gid_set  = FALSE;
961 uid_t   system_filter_uid      = 0;
962 BOOL    system_filter_uid_set  = FALSE;
963 BOOL    system_filtering       = FALSE;
964
965 BOOL    tcp_nodelay            = TRUE;
966 int     thismessage_size_limit = 0;
967 int     timeout_frozen_after   = 0;
968 BOOL    timestamps_utc         = FALSE;
969
970 transport_instance  *transports = NULL;
971
972 transport_instance  transport_defaults = {
973     NULL,                     /* chain pointer */
974     NULL,                     /* name */
975     NULL,                     /* info */
976     NULL,                     /* private options block pointer */
977     NULL,                     /* driver name */
978     NULL,                     /* setup entry point */
979     1,                        /* batch_max */
980     NULL,                     /* batch_id */
981     NULL,                     /* home_dir */
982     NULL,                     /* current_dir */
983     TRUE,                     /* multi-domain */
984     FALSE,                    /* overrides_hosts */
985     100,                      /* max_addresses */
986     500,                      /* connection_max_messages */
987     FALSE,                    /* deliver_as_creator */
988     FALSE,                    /* disable_logging */
989     FALSE,                    /* initgroups */
990     FALSE,                    /* uid_set */
991     FALSE,                    /* gid_set */
992     (uid_t)(-1),              /* uid */
993     (gid_t)(-1),              /* gid */
994     NULL,                     /* expand_uid */
995     NULL,                     /* expand_gid */
996     NULL,                     /* warn_message */
997     NULL,                     /* shadow */
998     NULL,                     /* shadow_condition */
999     NULL,                     /* filter_command */
1000     NULL,                     /* add_headers */
1001     NULL,                     /* remove_headers */
1002     NULL,                     /* return_path */
1003     NULL,                     /* debug_string */
1004     NULL,                     /* message_size_limit */
1005     NULL,                     /* headers_rewrite */
1006     NULL,                     /* rewrite_rules */
1007     0,                        /* rewrite_existflags */
1008     300,                      /* filter_timeout */
1009     FALSE,                    /* body_only */
1010     FALSE,                    /* delivery_date_add */
1011     FALSE,                    /* envelope_to_add */
1012     FALSE,                    /* headers_only */
1013     FALSE,                    /* rcpt_include_affixes */
1014     FALSE,                    /* return_path_add */
1015     FALSE,                    /* return_output */
1016     FALSE,                    /* return_fail_output */
1017     FALSE,                    /* log_output */
1018     FALSE,                    /* log_fail_output */
1019     FALSE,                    /* log_defer_output */
1020     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1021                                  1 nor 0 so can detect unset */
1022 };
1023
1024 int     transport_count;
1025 uschar **transport_filter_argv  = NULL;
1026 int     transport_filter_timeout;
1027 int     transport_write_timeout= 0;
1028
1029 tree_node  *tree_dns_fails     = NULL;
1030 tree_node  *tree_duplicates    = NULL;
1031 tree_node  *tree_nonrecipients = NULL;
1032 tree_node  *tree_unusable      = NULL;
1033
1034 BOOL    trusted_caller         = FALSE;
1035 gid_t  *trusted_groups         = NULL;
1036 uid_t  *trusted_users          = NULL;
1037 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1038
1039 uschar *unknown_login          = NULL;
1040 uschar *unknown_username       = NULL;
1041 uschar *untrusted_set_sender   = NULL;
1042
1043 /*  A regex for matching a "From_" line in an incoming message, in the form
1044
1045     From ph10 Fri Jan  5 12:35 GMT 1996
1046
1047 which  the "mail" commands send to the MTA (undocumented, of course), or in
1048 the  form
1049
1050     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1051
1052 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1053 Because  of variations in time formats, just match up to the minutes. That
1054 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1055 so  just require one digit for hours and minutes. The weekday is also absent
1056 in  some forms. */
1057
1058 uschar *uucp_from_pattern      = US
1059    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1060    "(?:"                                          /* Non-extracting bracket */
1061    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1062    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1063    ")"                                            /* End alternation */
1064    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1065
1066 uschar *uucp_from_sender       = US"$1";
1067
1068 uschar *warn_message_file      = NULL;
1069 uschar *warnmsg_delay          = NULL;
1070 uschar *warnmsg_recipients     = NULL;
1071 BOOL    write_rejectlog        = TRUE;
1072
1073 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1074 uschar *version_date           = US"?";
1075 uschar *version_cnumber        = US"????";
1076 uschar *version_string         = US"?";
1077
1078 int     warning_count          = 0;
1079
1080 /*  End of globals.c */