b9cf2458f3ce61140e6af13622e5d2682c6b61d0
[exim.git] / src / src / globals.c
1 /* $Cambridge: exim/src/src/globals.c,v 1.1 2004/10/07 10:39:01 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 uschar *config_main_filelist   = US CONFIGURE_FILE
345                          "\0<-----------Space to patch configure_filename->";
346 uschar *config_main_filename   = NULL;
347
348 #ifdef CONFIGURE_OWNER
349 uid_t   config_uid             = CONFIGURE_OWNER;
350 #endif
351
352 int     connection_max_messages= -1;
353 uschar *continue_hostname      = NULL;
354 uschar *continue_host_address  = NULL;
355 BOOL    continue_more          = FALSE;
356 int     continue_sequence      = 1;
357 uschar *continue_transport     = NULL;
358
359 BOOL    daemon_listen          = FALSE;
360 uschar *daemon_smtp_port       = US"smtp";
361 int     debug_fd               = -1;
362 FILE   *debug_file             = NULL;
363 bit_table debug_options[]      = {
364   { US"acl",            D_acl },
365   { US"all",            D_all },
366   { US"auth",           D_auth },
367   { US"deliver",        D_deliver },
368   { US"dns",            D_dns },
369   { US"dnsbl",          D_dnsbl },
370   { US"exec",           D_exec },
371   { US"expand",         D_expand },
372   { US"filter",         D_filter },
373   { US"hints_lookup",   D_hints_lookup },
374   { US"host_lookup",    D_host_lookup },
375   { US"ident",          D_ident },
376   { US"interface",      D_interface },
377   { US"lists",          D_lists },
378   { US"load",           D_load },
379   { US"local_scan",     D_local_scan },
380   { US"lookup",         D_lookup },
381   { US"memory",         D_memory },
382   { US"pid",            D_pid },
383   { US"process_info",   D_process_info },
384   { US"queue_run",      D_queue_run },
385   { US"receive",        D_receive },
386   { US"resolver",       D_resolver },
387   { US"retry",          D_retry },
388   { US"rewrite",        D_rewrite },
389   { US"route",          D_route },
390   { US"timestamp",      D_timestamp },
391   { US"tls",            D_tls },
392   { US"transport",      D_transport },
393   { US"uid",            D_uid },
394   { US"verify",         D_verify }
395 };
396 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
397 unsigned int debug_selector    = 0;
398 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
399 uschar *delay_warning_condition= US"${if match{$h_precedence:}{(?i)bulk|list|junk}{no}{yes}}";
400 BOOL    delivery_date_remove   = TRUE;
401 uschar *deliver_address_data   = NULL;
402 int     deliver_datafile       = -1;
403 uschar *deliver_domain         = NULL;
404 uschar *deliver_domain_data    = NULL;
405 uschar *deliver_domain_orig    = NULL;
406 uschar *deliver_domain_parent  = NULL;
407 BOOL    deliver_drop_privilege = FALSE;
408 BOOL    deliver_firsttime      = FALSE;
409 BOOL    deliver_force          = FALSE;
410 BOOL    deliver_freeze         = FALSE;
411 int     deliver_frozen_at      = 0;
412 uschar *deliver_home           = NULL;
413 uschar *deliver_host           = NULL;
414 uschar *deliver_host_address   = NULL;
415 uschar *deliver_in_buffer      = NULL;
416 ino_t   deliver_inode          = 0;
417 uschar *deliver_localpart      = NULL;
418 uschar *deliver_localpart_data = NULL;
419 uschar *deliver_localpart_orig = NULL;
420 uschar *deliver_localpart_parent = NULL;
421 uschar *deliver_localpart_prefix = NULL;
422 uschar *deliver_localpart_suffix = NULL;
423 BOOL    deliver_force_thaw     = FALSE;
424 BOOL    deliver_manual_thaw    = FALSE;
425 uschar *deliver_out_buffer     = NULL;
426 int     deliver_queue_load_max = -1;
427 address_item  *deliver_recipients = NULL;
428 uschar *deliver_selectstring   = NULL;
429 BOOL    deliver_selectstring_regex = FALSE;
430 uschar *deliver_selectstring_sender = NULL;
431 BOOL    deliver_selectstring_sender_regex = FALSE;
432 BOOL    disable_logging        = FALSE;
433
434 uschar *dns_again_means_nonexist = NULL;
435 uschar *dns_ipv4_lookup        = NULL;
436 int     dns_retrans            = 0;
437 int     dns_retry              = 0;
438 uschar *dnslist_domain         = NULL;
439 uschar *dnslist_text           = NULL;
440 uschar *dnslist_value          = NULL;
441 tree_node *domainlist_anchor   = NULL;
442 int     domainlist_count       = 0;
443 BOOL    dont_deliver           = FALSE;
444 BOOL    dot_ends               = TRUE;
445 BOOL    drop_cr                = FALSE;         /* No longer used */
446
447 BOOL    enable_dollar_recipients = FALSE;
448 BOOL    envelope_to_remove     = TRUE;
449 int     errno_quota            = ERRNO_QUOTA;
450 uschar *errors_copy            = NULL;
451 int     error_handling         = ERRORS_SENDER;
452 uschar *errors_reply_to        = NULL;
453 int     errors_sender_rc       = EXIT_FAILURE;
454
455 gid_t   exim_gid               = EXIM_GID;
456 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
457 uschar *exim_path              = US BIN_DIRECTORY "/exim"
458                         "\0<---------------Space to patch exim_path->";
459 uid_t   exim_uid               = EXIM_UID;
460 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
461 int     expand_forbid          = 0;
462 int     expand_nlength[EXPAND_MAXN+1];
463 int     expand_nmax            = -1;
464 uschar *expand_nstring[EXPAND_MAXN+1];
465 BOOL    expand_string_forcedfail = FALSE;
466 uschar *expand_string_message;
467 BOOL    extract_addresses_remove_arguments = TRUE;
468 uschar *extra_local_interfaces = NULL;
469
470 int     filter_n[FILTER_VARIABLE_COUNT];
471 BOOL    filter_running         = FALSE;
472 int     filter_sn[FILTER_VARIABLE_COUNT];
473 uschar *filter_test            = NULL;
474 uschar *filter_thisaddress     = NULL;
475 int     finduser_retries       = 0;
476 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
477 uschar *freeze_tell            = NULL;
478 uschar *fudged_queue_times     = US"";
479
480 uschar *gecos_name             = NULL;
481 uschar *gecos_pattern          = NULL;
482 rewrite_rule  *global_rewrite_rules = NULL;
483
484 uschar *headers_charset        = US HEADERS_CHARSET;
485 int     header_insert_maxlen   = 64 * 1024;
486 header_line  *header_last      = NULL;
487 header_line  *header_list      = NULL;
488 int     header_maxsize         = HEADER_MAXSIZE;
489 int     header_line_maxsize    = 0;
490
491 header_name header_names[] = {
492   { US"bcc",            3, TRUE,  htype_bcc },
493   { US"cc",             2, TRUE,  htype_cc },
494   { US"date",           4, TRUE,  htype_date },
495   { US"delivery-date", 13, FALSE, htype_delivery_date },
496   { US"envelope-to",   11, FALSE, htype_envelope_to },
497   { US"from",           4, TRUE,  htype_from },
498   { US"message-id",    10, TRUE,  htype_id },
499   { US"received",       8, FALSE, htype_received },
500   { US"reply-to",       8, FALSE, htype_reply_to },
501   { US"return-path",   11, FALSE, htype_return_path },
502   { US"sender",         6, TRUE,  htype_sender },
503   { US"subject",        7, FALSE, htype_subject },
504   { US"to",             2, TRUE,  htype_to }
505 };
506
507 int header_names_size          = sizeof(header_names)/sizeof(header_name);
508
509 BOOL    header_rewritten       = FALSE;
510 uschar *helo_accept_junk_hosts = NULL;
511 uschar *helo_allow_chars       = US"";
512 uschar *helo_lookup_domains    = US"@ : @[]";
513 uschar *helo_try_verify_hosts  = NULL;
514 BOOL    helo_verified          = FALSE;
515 uschar *helo_verify_hosts      = NULL;
516 uschar *hex_digits             = US"0123456789abcdef";
517 uschar *hold_domains           = NULL;
518 BOOL    host_checking          = FALSE;
519 BOOL    host_checking_callout  = FALSE;
520 uschar *host_data              = NULL;
521 BOOL    host_find_failed_syntax= FALSE;
522 uschar *host_lookup            = NULL;
523 BOOL    host_lookup_failed     = FALSE;
524 uschar *host_lookup_order      = US"bydns:byaddr";
525 uschar *host_lookup_msg        = US"";
526 int     host_number            = 0;
527 uschar *host_number_string     = NULL;
528 uschar *host_reject_connection = NULL;
529 tree_node *hostlist_anchor     = NULL;
530 int     hostlist_count         = 0;
531 uschar *hosts_treat_as_local   = NULL;
532 uschar *hosts_connection_nolog = NULL;
533
534 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
535 BOOL    ignore_fromline_local  = FALSE;
536 uschar *ignore_fromline_hosts  = NULL;
537 uschar *interface_address      = NULL;
538 int     interface_port         = -1;
539 BOOL    is_inetd               = FALSE;
540
541 int     journal_fd             = -1;
542
543 int     keep_malformed         = 4*24*60*60;    /* 4 days */
544
545 uschar *eldap_dn               = NULL;
546 int     load_average           = -2;
547 BOOL    local_error_message    = FALSE;
548 BOOL    local_from_check       = TRUE;
549 uschar *local_from_prefix      = NULL;
550 uschar *local_from_suffix      = NULL;
551
552 #if HAVE_IPV6
553 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
554 #else
555 uschar *local_interfaces       = US"0.0.0.0";
556 #endif
557
558 uschar *local_scan_data        = NULL;
559 int     local_scan_timeout     = 5*60;
560 BOOL    local_sender_retain    = FALSE;
561 gid_t   local_user_gid         = (gid_t)(-1);
562 uid_t   local_user_uid         = (uid_t)(-1);
563
564 tree_node *localpartlist_anchor= NULL;
565 int     localpartlist_count    = 0;
566 uschar *log_buffer             = NULL;
567 unsigned int log_extra_selector = LX_default;
568 uschar *log_file_path          = US LOG_FILE_PATH
569                            "\0<--------------Space to patch log_file_path->";
570
571 /* Those log options with L_xxx identifiers have values less than 0x800000 and
572 are the ones that get put into log_write_selector. They can be used in calls to
573 log_write() to test for the bit. The options with LX_xxx identifiers have
574 values greater than 0x80000000 and are put int log_extra_selector (without the
575 top bit). They are never used in calls to log_write(), but are tested
576 independently. This separation became necessary when the number of log
577 selectors was getting close to filling a 32-bit word. */
578
579 bit_table log_options[]        = {
580   { US"address_rewrite",              L_address_rewrite },
581   { US"all",                          L_all },
582   { US"all_parents",                  L_all_parents },
583   { US"arguments",                    LX_arguments },
584   { US"connection_reject",            L_connection_reject },
585   { US"delay_delivery",               L_delay_delivery },
586   { US"deliver_time",                 LX_deliver_time },
587   { US"delivery_size",                LX_delivery_size },
588   { US"dnslist_defer",                L_dnslist_defer },
589   { US"etrn",                         L_etrn },
590   { US"host_lookup_failed",           L_host_lookup_failed },
591   { US"ident_timeout",                LX_ident_timeout },
592   { US"incoming_interface",           LX_incoming_interface },
593   { US"incoming_port",                LX_incoming_port },
594   { US"lost_incoming_connection",     L_lost_incoming_connection },
595   { US"outgoing_port",                LX_outgoing_port },
596   { US"queue_run",                    L_queue_run },
597   { US"queue_time",                   LX_queue_time },
598   { US"received_recipients",          LX_received_recipients },
599   { US"received_sender",              LX_received_sender },
600   { US"rejected_header",              LX_rejected_header },
601   { US"rejected_headers",             LX_rejected_header },
602   { US"retry_defer",                  L_retry_defer },
603   { US"return_path_on_delivery",      LX_return_path_on_delivery },
604   { US"sender_on_delivery",           LX_sender_on_delivery },
605   { US"size_reject",                  L_size_reject },
606   { US"skip_delivery",                L_skip_delivery },
607   { US"smtp_confirmation",            LX_smtp_confirmation },
608   { US"smtp_connection",              L_smtp_connection },
609   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
610   { US"smtp_protocol_error",          L_smtp_protocol_error },
611   { US"smtp_syntax_error",            L_smtp_syntax_error },
612   { US"subject",                      LX_subject },
613   { US"tls_certificate_verified",     LX_tls_certificate_verified },
614   { US"tls_cipher",                   LX_tls_cipher },
615   { US"tls_peerdn",                   LX_tls_peerdn }
616 };
617
618 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
619 unsigned int log_write_selector= L_default;
620 uschar *log_selector_string    = NULL;
621 FILE   *log_stderr             = NULL;
622 BOOL    log_testing_mode       = FALSE;
623 BOOL    log_timezone           = FALSE;
624 uschar *login_sender_address   = NULL;
625 int     lookup_open_max        = 25;
626 uschar *lookup_value           = NULL;
627
628 macro_item  *macros            = NULL;
629 uschar *mailstore_basename     = NULL;
630 int     max_username_length    = 0;
631 int     message_age            = 0;
632 uschar *message_body           = NULL;
633 uschar *message_body_end       = NULL;
634 int     message_body_size      = 0;
635 int     message_body_visible   = 500;
636 int     message_ended          = END_NOTSTARTED;
637 uschar *message_headers        = NULL;
638 uschar *message_id;
639 uschar *message_id_domain      = NULL;
640 uschar *message_id_text        = NULL;
641 struct timeval message_id_tv   = { 0, 0 };
642 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
643 uschar *message_id_external;
644 int     message_linecount      = 0;
645 BOOL    message_logs           = TRUE;
646 int     message_size           = 0;
647 uschar *message_size_limit     = US"50M";
648 uschar  message_subdir[2]      = { 0, 0 };
649 uschar *message_reference      = NULL;
650 BOOL    mua_wrapper            = FALSE;
651
652 uid_t  *never_users            = NULL;
653 BOOL    no_multiline_responses = FALSE;
654
655 uid_t   original_euid;
656 gid_t   originator_gid;
657 uschar *originator_login       = NULL;
658 uschar *originator_name        = NULL;
659 uid_t   originator_uid;
660 uschar *override_local_interfaces = NULL;
661 uschar *override_pid_file_path = NULL;
662
663 BOOL    parse_allow_group      = FALSE;
664 BOOL    parse_found_group      = FALSE;
665 uschar *percent_hack_domains   = NULL;
666 uschar *pid_file_path          = US PID_FILE_PATH
667                            "\0<--------------Space to patch pid_file_path->";
668 uschar *pipelining_advertise_hosts = US"*";
669 BOOL    preserve_message_logs  = FALSE;
670 uschar *primary_hostname       = NULL;
671 BOOL    print_topbitchars      = FALSE;
672 uschar  process_info[PROCESS_INFO_SIZE];
673 uschar *process_log_path       = NULL;
674 BOOL    prod_requires_admin    = TRUE;
675
676 uschar *qualify_domain_recipient = NULL;
677 uschar *qualify_domain_sender  = NULL;
678 BOOL    queue_2stage           = FALSE;
679 uschar *queue_domains          = NULL;
680 int     queue_interval         = -1;
681 BOOL    queue_list_requires_admin = TRUE;
682 BOOL    queue_only             = FALSE;
683 uschar *queue_only_file        = NULL;
684 int     queue_only_load        = -1;
685 BOOL    queue_only_override    = TRUE;
686 BOOL    queue_only_policy      = FALSE;
687 BOOL    queue_run_first_delivery = FALSE;
688 BOOL    queue_run_force        = FALSE;
689 BOOL    queue_run_in_order     = FALSE;
690 BOOL    queue_run_local        = FALSE;
691 int     queue_run_max          = 5;
692 pid_t   queue_run_pid          = (pid_t)0;
693 int     queue_run_pipe         = -1;
694 BOOL    queue_running          = FALSE;
695 BOOL    queue_smtp             = FALSE;
696 uschar *queue_smtp_domains     = NULL;
697
698 unsigned int random_seed       = 0;
699 uschar *raw_active_hostname    = NULL;
700 uschar *raw_sender             = NULL;
701 uschar **raw_recipients        = NULL;
702 int     raw_recipients_count   = 0;
703
704 int     rcpt_count             = 0;
705 int     rcpt_fail_count        = 0;
706 int     rcpt_defer_count       = 0;
707 gid_t   real_gid;
708 uid_t   real_uid;
709 BOOL    really_exim            = TRUE;
710 BOOL    receive_call_bombout   = FALSE;
711 int     receive_linecount      = 0;
712 int     receive_messagecount   = 0;
713 int     receive_timeout        = 0;
714 int     received_count         = 0;
715 uschar *received_for           = NULL;
716
717 /*  This is the default text for Received headers generated by Exim. The
718 date  will be automatically added on the end. */
719
720 uschar *received_header_text   = US
721      "Received: "
722      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
723      "{${if def:sender_ident {from $sender_ident }}"
724      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
725      "by $primary_hostname "
726      "${if def:received_protocol {with $received_protocol}} "
727      #ifdef SUPPORT_TLS
728      "${if def:tls_cipher {($tls_cipher)\n\t}}"
729      #endif
730      "(Exim $version_number)\n\t"
731      "id $message_id"
732      "${if def:received_for {\n\tfor $received_for}}"
733      "\0<---------------Space to patch received_header_text->";
734
735 int     received_headers_max   = 30;
736 uschar *received_protocol      = NULL;
737 int     received_time          = 0;
738 uschar *recipient_data         = NULL;
739 uschar *recipient_unqualified_hosts = NULL;
740 int     recipients_count       = 0;
741 BOOL    recipients_discarded   = FALSE;
742 recipient_item  *recipients_list = NULL;
743 int     recipients_list_max    = 0;
744 int     recipients_max         = 0;
745 BOOL    recipients_max_reject  = FALSE;
746 const pcre *regex_AUTH         = NULL;
747 const pcre *regex_check_dns_names = NULL;
748 const pcre *regex_From         = NULL;
749 const pcre *regex_PIPELINING   = NULL;
750 const pcre *regex_SIZE         = NULL;
751 const pcre *regex_ismsgid      = NULL;
752 int     remote_delivery_count  = 0;
753 int     remote_max_parallel    = 2;
754 uschar *remote_sort_domains    = NULL;
755 int     retry_data_expire      = 7*24*60*60;
756 int     retry_interval_max     = 24*60*60;
757 int     retry_maximum_timeout  = 0;        /* set from retry config */
758 retry_config  *retries         = NULL;
759 uschar *return_path            = NULL;
760 BOOL    return_path_remove     = TRUE;
761 int     rewrite_existflags     = 0;
762 uschar *rfc1413_hosts          = US"*";
763 int     rfc1413_query_timeout  = 30;
764 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
765 uid_t   root_uid               = ROOT_UID;
766
767 router_instance  *routers  = NULL;
768 router_instance  router_defaults = {
769     NULL,                      /* chain pointer */
770     NULL,                      /* name */
771     NULL,                      /* info */
772     NULL,                      /* private options block pointer */
773     NULL,                      /* driver name */
774
775     NULL,                      /* address_data */
776     NULL,                      /* cannot_route_message */
777     NULL,                      /* condition */
778     NULL,                      /* current_directory */
779     NULL,                      /* debug_string */
780     NULL,                      /* domains */
781     NULL,                      /* errors_to */
782     NULL,                      /* expand_gid */
783     NULL,                      /* expand_uid */
784     NULL,                      /* expand_more */
785     NULL,                      /* expand_unseen */
786     NULL,                      /* extra_headers */
787     NULL,                      /* fallback_hosts */
788     NULL,                      /* home_directory */
789     NULL,                      /* ignore_target_hosts */
790     NULL,                      /* local_parts */
791     NULL,                      /* pass_router_name */
792     NULL,                      /* prefix */
793     NULL,                      /* redirect_router_name */
794     NULL,                      /* remove_headers */
795     NULL,                      /* require_files */
796     NULL,                      /* router_home_directory */
797     US"freeze",                /* self */
798     NULL,                      /* senders */
799     NULL,                      /* suffix */
800     NULL,                      /* translate_ip_address */
801     NULL,                      /* transport_name */
802
803     TRUE,                      /* address_test */
804     TRUE,                      /* expn */
805     FALSE,                     /* caseful_local_part */
806     FALSE,                     /* check_local_user */
807     FALSE,                     /* disable_logging */
808     FALSE,                     /* fail_verify_recipient */
809     FALSE,                     /* fail_verify_sender */
810     FALSE,                     /* gid_set */
811     FALSE,                     /* initgroups */
812     TRUE_UNSET,                /* log_as_local */
813     TRUE,                      /* more */
814     FALSE,                     /* pass_on_timeout */
815     FALSE,                     /* prefix_optional */
816     TRUE,                      /* repeat_use */
817     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
818     FALSE,                     /* same_domain_copy_routing */
819     FALSE,                     /* self_rewrite */
820     FALSE,                     /* suffix_optional */
821     FALSE,                     /* verify_only */
822     TRUE,                      /* verify_recipient */
823     TRUE,                      /* verify_sender */
824     FALSE,                     /* uid_set */
825     FALSE,                     /* unseen */
826
827     self_freeze,               /* self_code */
828     (uid_t)(-1),               /* uid */
829     (gid_t)(-1),               /* gid */
830
831     NULL,                      /* fallback_hostlist */
832     NULL,                      /* transport instance */
833     NULL,                      /* pass_router */
834     NULL                       /* redirect_router */
835 };
836
837 ip_address_item *running_interfaces = NULL;
838 BOOL    running_in_test_harness = FALSE;
839
840 /* This is a weird one. The following string gets patched in the binary by the
841 script that sets up a copy of Exim for running in the test harness. It seems
842 that compilers are now clever, and share constant strings if they can.
843 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
844 make use of the end of this string in order to save space. So the patching then
845 wrecks this. We default this optimization by adding some additional characters
846 onto the end of the string. */
847
848 uschar *running_status         = US">>>running<<<" "\0EXTRA";
849
850 int     runrc                  = 0;
851
852 uschar *search_error_message   = NULL;
853 BOOL    search_find_defer      = FALSE;
854 uschar *self_hostname          = NULL;
855 uschar *sender_address         = NULL;
856 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
857 BOOL    sender_address_forced  = FALSE;
858 uschar *sender_address_unrewritten = NULL;
859 uschar *sender_data            = NULL;
860 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
861 uschar *sender_fullhost        = NULL;
862 uschar *sender_helo_name       = NULL;
863 uschar **sender_host_aliases   = &no_aliases;
864 uschar *sender_host_address    = NULL;
865 uschar *sender_host_authenticated = NULL;
866 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
867 uschar *sender_host_name       = NULL;
868 int     sender_host_port       = 0;
869 BOOL    sender_host_notsocket  = FALSE;
870 BOOL    sender_host_unknown    = FALSE;
871 uschar *sender_ident           = NULL;
872 BOOL    sender_local           = FALSE;
873 uschar *sender_rcvhost         = NULL;
874 BOOL    sender_set_untrusted   = FALSE;
875 uschar *sender_unqualified_hosts = NULL;
876 address_item *sender_verified_list  = NULL;
877 address_item *sender_verified_failed = NULL;
878 int     sender_verified_rc     = -1;
879 BOOL    sender_verified_responded = FALSE;
880 volatile  BOOL sigalrm_seen    = FALSE;
881 uschar **sighup_argv           = NULL;
882 int     smtp_accept_count      = 0;
883 BOOL    smtp_accept_keepalive  = TRUE;
884 int     smtp_accept_max        = 20;
885 int     smtp_accept_max_nonmail= 10;
886 uschar *smtp_accept_max_nonmail_hosts = US"*";
887 int     smtp_accept_max_per_connection = 1000;
888 uschar *smtp_accept_max_per_host = NULL;
889 int     smtp_accept_queue      = 0;
890 int     smtp_accept_queue_per_connection = 10;
891 int     smtp_accept_reserve    = 0;
892 uschar *smtp_active_hostname   = NULL;
893 BOOL    smtp_authenticated     = FALSE;
894 uschar *smtp_banner            = US"$primary_hostname ESMTP "
895                              "Exim $version_number $tod_full"
896                              "\0<---------------Space to patch smtp_banner->";
897 BOOL    smtp_batched_input     = FALSE;
898 BOOL    smtp_check_spool_space = TRUE;
899 uschar *smtp_command_argument  = NULL;
900 int     smtp_connect_backlog   = 20;
901 double  smtp_delay_mail        = 0.0;
902 double  smtp_delay_rcpt        = 0.0;
903 BOOL    smtp_enforce_sync      = TRUE;
904 FILE   *smtp_in                = NULL;
905 BOOL    smtp_input             = FALSE;
906 int     smtp_load_reserve      = -1;
907 int     smtp_mailcmd_count     = 0;
908 FILE   *smtp_out               = NULL;
909 uschar *smtp_etrn_command      = NULL;
910 BOOL    smtp_etrn_serialize    = TRUE;
911 int     smtp_max_synprot_errors= 3;
912 int     smtp_max_unknown_commands = 3;
913 uschar *smtp_ratelimit_hosts   = NULL;
914 uschar *smtp_ratelimit_mail    = NULL;
915 uschar *smtp_ratelimit_rcpt    = NULL;
916 uschar *smtp_read_error        = US"";
917 int     smtp_receive_timeout   = 5*60;
918 uschar *smtp_reserve_hosts     = NULL;
919 BOOL    smtp_return_error_details = FALSE;
920 int     smtp_rlm_base          = 0;
921 double  smtp_rlm_factor        = 0.0;
922 int     smtp_rlm_limit         = 0;
923 int     smtp_rlm_threshold     = INT_MAX;
924 int     smtp_rlr_base          = 0;
925 double  smtp_rlr_factor        = 0.0;
926 int     smtp_rlr_limit         = 0;
927 int     smtp_rlr_threshold     = INT_MAX;
928 BOOL    smtp_use_pipelining    = FALSE;
929 BOOL    smtp_use_size          = FALSE;
930 BOOL    split_spool_directory  = FALSE;
931 uschar *spool_directory        = US SPOOL_DIRECTORY
932                            "\0<--------------Space to patch spool_directory->";
933 int     string_datestamp_offset= -1;
934 BOOL    strip_excess_angle_brackets = FALSE;
935 BOOL    strip_trailing_dot     = FALSE;
936 uschar *submission_domain      = NULL;
937 BOOL    submission_mode        = FALSE;
938 BOOL    synchronous_delivery   = FALSE;
939 BOOL    syslog_duplication     = TRUE;
940 int     syslog_facility        = LOG_MAIL;
941 uschar *syslog_processname     = US"exim";
942 BOOL    syslog_timestamp       = TRUE;
943 uschar *system_filter          = NULL;
944
945 uschar *system_filter_directory_transport = NULL;
946 uschar *system_filter_file_transport = NULL;
947 uschar *system_filter_pipe_transport = NULL;
948 uschar *system_filter_reply_transport = NULL;
949
950 gid_t   system_filter_gid      = 0;
951 BOOL    system_filter_gid_set  = FALSE;
952 uid_t   system_filter_uid      = 0;
953 BOOL    system_filter_uid_set  = FALSE;
954 BOOL    system_filtering       = FALSE;
955
956 BOOL    tcp_nodelay            = TRUE;
957 int     thismessage_size_limit = 0;
958 int     timeout_frozen_after   = 0;
959 BOOL    timestamps_utc         = FALSE;
960
961 transport_instance  *transports = NULL;
962
963 transport_instance  transport_defaults = {
964     NULL,                     /* chain pointer */
965     NULL,                     /* name */
966     NULL,                     /* info */
967     NULL,                     /* private options block pointer */
968     NULL,                     /* driver name */
969     NULL,                     /* setup entry point */
970     1,                        /* batch_max */
971     NULL,                     /* batch_id */
972     NULL,                     /* home_dir */
973     NULL,                     /* current_dir */
974     TRUE,                     /* multi-domain */
975     FALSE,                    /* overrides_hosts */
976     100,                      /* max_addresses */
977     500,                      /* connection_max_messages */
978     FALSE,                    /* deliver_as_creator */
979     FALSE,                    /* disable_logging */
980     FALSE,                    /* initgroups */
981     FALSE,                    /* uid_set */
982     FALSE,                    /* gid_set */
983     (uid_t)(-1),              /* uid */
984     (gid_t)(-1),              /* gid */
985     NULL,                     /* expand_uid */
986     NULL,                     /* expand_gid */
987     NULL,                     /* warn_message */
988     NULL,                     /* shadow */
989     NULL,                     /* shadow_condition */
990     NULL,                     /* filter_command */
991     NULL,                     /* add_headers */
992     NULL,                     /* remove_headers */
993     NULL,                     /* return_path */
994     NULL,                     /* debug_string */
995     NULL,                     /* message_size_limit */
996     NULL,                     /* headers_rewrite */
997     NULL,                     /* rewrite_rules */
998     0,                        /* rewrite_existflags */
999     300,                      /* filter_timeout */
1000     FALSE,                    /* body_only */
1001     FALSE,                    /* delivery_date_add */
1002     FALSE,                    /* envelope_to_add */
1003     FALSE,                    /* headers_only */
1004     FALSE,                    /* rcpt_include_affixes */
1005     FALSE,                    /* return_path_add */
1006     FALSE,                    /* return_output */
1007     FALSE,                    /* return_fail_output */
1008     FALSE,                    /* log_output */
1009     FALSE,                    /* log_fail_output */
1010     FALSE,                    /* log_defer_output */
1011     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1012                                  1 nor 0 so can detect unset */
1013 };
1014
1015 int     transport_count;
1016 uschar **transport_filter_argv  = NULL;
1017 int     transport_filter_timeout;
1018 int     transport_write_timeout= 0;
1019
1020 tree_node  *tree_dns_fails     = NULL;
1021 tree_node  *tree_duplicates    = NULL;
1022 tree_node  *tree_nonrecipients = NULL;
1023 tree_node  *tree_unusable      = NULL;
1024
1025 BOOL    trusted_caller         = FALSE;
1026 gid_t  *trusted_groups         = NULL;
1027 uid_t  *trusted_users          = NULL;
1028 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1029
1030 uschar *unknown_login          = NULL;
1031 uschar *unknown_username       = NULL;
1032 uschar *untrusted_set_sender   = NULL;
1033
1034 /*  A regex for matching a "From_" line in an incoming message, in the form
1035
1036     From ph10 Fri Jan  5 12:35 GMT 1996
1037
1038 which  the "mail" commands send to the MTA (undocumented, of course), or in
1039 the  form
1040
1041     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1042
1043 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1044 Because  of variations in time formats, just match up to the minutes. That
1045 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1046 so  just require one digit for hours and minutes. The weekday is also absent
1047 in  some forms. */
1048
1049 uschar *uucp_from_pattern      = US
1050    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1051    "(?:"                                          /* Non-extracting bracket */
1052    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1053    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1054    ")"                                            /* End alternation */
1055    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1056
1057 uschar *uucp_from_sender       = US"$1";
1058
1059 uschar *warn_message_file      = NULL;
1060 uschar *warnmsg_delay          = NULL;
1061 uschar *warnmsg_recipients     = NULL;
1062 BOOL    write_rejectlog        = TRUE;
1063
1064 uschar *version_copyright      = US"Copyright (c) University of Cambridge 2004";
1065 uschar *version_date           = US"?";
1066 uschar *version_cnumber        = US"????";
1067 uschar *version_string         = US"?";
1068
1069 int     warning_count          = 0;
1070
1071 /*  End of globals.c */