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Log lengthy DNS lookups. Bug 514
[exim.git] / src / src / globals.c
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2014 */
6 /* See the file NOTICE for conditions of use and distribution. */
7
8 /* All the global variables are defined together in this one module, so
9 that they are easy to find. */
10
11 #include "exim.h"
12
13
14 /* Generic options for auths, all of which live inside auth_instance
15 data blocks and hence have the opt_public flag set. */
16
17 optionlist optionlist_auths[] = {
18 { "client_condition", opt_stringptr | opt_public,
19 (void *)(offsetof(auth_instance, client_condition)) },
20 { "client_set_id", opt_stringptr | opt_public,
21 (void *)(offsetof(auth_instance, set_client_id)) },
22 { "driver", opt_stringptr | opt_public,
23 (void *)(offsetof(auth_instance, driver_name)) },
24 { "public_name", opt_stringptr | opt_public,
25 (void *)(offsetof(auth_instance, public_name)) },
26 { "server_advertise_condition", opt_stringptr | opt_public,
27 (void *)(offsetof(auth_instance, advertise_condition))},
28 { "server_condition", opt_stringptr | opt_public,
29 (void *)(offsetof(auth_instance, server_condition)) },
30 { "server_debug_print", opt_stringptr | opt_public,
31 (void *)(offsetof(auth_instance, server_debug_string)) },
32 { "server_mail_auth_condition", opt_stringptr | opt_public,
33 (void *)(offsetof(auth_instance, mail_auth_condition)) },
34 { "server_set_id", opt_stringptr | opt_public,
35 (void *)(offsetof(auth_instance, set_id)) }
36 };
37
38 int optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
39
40 /* An empty host aliases list. */
41
42 uschar *no_aliases = NULL;
43
44
45 /* For comments on these variables, see globals.h. I'm too idle to
46 duplicate them here... */
47
48 #ifdef EXIM_PERL
49 uschar *opt_perl_startup = NULL;
50 BOOL opt_perl_at_start = FALSE;
51 BOOL opt_perl_started = FALSE;
52 #endif
53
54 #ifdef EXPAND_DLFUNC
55 tree_node *dlobj_anchor = NULL;
56 #endif
57
58 #ifdef LOOKUP_IBASE
59 uschar *ibase_servers = NULL;
60 #endif
61
62 #ifdef LOOKUP_LDAP
63 uschar *eldap_ca_cert_dir = NULL;
64 uschar *eldap_ca_cert_file = NULL;
65 uschar *eldap_cert_file = NULL;
66 uschar *eldap_cert_key = NULL;
67 uschar *eldap_cipher_suite = NULL;
68 uschar *eldap_default_servers = NULL;
69 uschar *eldap_require_cert = NULL;
70 int eldap_version = -1;
71 BOOL eldap_start_tls = FALSE;
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 EXPERIMENTAL_REDIS
87 uschar *redis_servers = NULL;
88 #endif
89
90 #ifdef LOOKUP_SQLITE
91 int sqlite_lock_timeout = 5;
92 #endif
93
94 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
95 BOOL move_frozen_messages = FALSE;
96 #endif
97
98 /* These variables are outside the #ifdef because it keeps the code less
99 cluttered in several places (e.g. during logging) if we can always refer to
100 them. Also, the tls_ variables are now always visible. */
101
102 tls_support tls_in = {
103 -1, /* tls_active */
104 0, /* tls_bits */
105 FALSE,/* tls_certificate_verified */
106 #ifdef EXPERIMENTAL_DANE
107 FALSE,/* dane_verified */
108 0, /* tlsa_usage */
109 #endif
110 NULL, /* tls_cipher */
111 FALSE,/* tls_on_connect */
112 NULL, /* tls_on_connect_ports */
113 NULL, /* tls_ourcert */
114 NULL, /* tls_peercert */
115 NULL, /* tls_peerdn */
116 NULL, /* tls_sni */
117 0 /* tls_ocsp */
118 };
119 tls_support tls_out = {
120 -1, /* tls_active */
121 0, /* tls_bits */
122 FALSE,/* tls_certificate_verified */
123 #ifdef EXPERIMENTAL_DANE
124 FALSE,/* dane_verified */
125 0, /* tlsa_usage */
126 #endif
127 NULL, /* tls_cipher */
128 FALSE,/* tls_on_connect */
129 NULL, /* tls_on_connect_ports */
130 NULL, /* tls_ourcert */
131 NULL, /* tls_peercert */
132 NULL, /* tls_peerdn */
133 NULL, /* tls_sni */
134 0 /* tls_ocsp */
135 };
136
137 uschar *dsn_envid = NULL;
138 int dsn_ret = 0;
139 const pcre *regex_DSN = NULL;
140 BOOL smtp_use_dsn = FALSE;
141 uschar *dsn_advertise_hosts = NULL;
142
143 #ifdef SUPPORT_TLS
144 BOOL gnutls_compat_mode = FALSE;
145 BOOL gnutls_allow_auto_pkcs11 = FALSE;
146 uschar *gnutls_require_mac = NULL;
147 uschar *gnutls_require_kx = NULL;
148 uschar *gnutls_require_proto = NULL;
149 uschar *openssl_options = NULL;
150 const pcre *regex_STARTTLS = NULL;
151 uschar *tls_advertise_hosts = NULL; /* This is deliberate */
152 uschar *tls_certificate = NULL;
153 uschar *tls_crl = NULL;
154 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
155 that's the interop problem which has been observed: GnuTLS suggesting a higher
156 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
157 int tls_dh_max_bits = 2236;
158 uschar *tls_dhparam = NULL;
159 #ifndef DISABLE_OCSP
160 uschar *tls_ocsp_file = NULL;
161 #endif
162 BOOL tls_offered = FALSE;
163 uschar *tls_privatekey = NULL;
164 BOOL tls_remember_esmtp = FALSE;
165 uschar *tls_require_ciphers = NULL;
166 uschar *tls_try_verify_hosts = NULL;
167 uschar *tls_verify_certificates= US"system";
168 uschar *tls_verify_hosts = NULL;
169 #endif
170
171 #ifndef DISABLE_PRDR
172 /* Per Recipient Data Response variables */
173 BOOL prdr_enable = FALSE;
174 BOOL prdr_requested = FALSE;
175 const pcre *regex_PRDR = NULL;
176 #endif
177
178 #ifdef EXPERIMENTAL_INTERNATIONAL
179 const pcre *regex_UTF8 = NULL;
180 #endif
181
182 /* Input-reading functions for messages, so we can use special ones for
183 incoming TCP/IP. The defaults use stdin. We never need these for any
184 stand-alone tests. */
185
186 #ifndef STAND_ALONE
187 int (*receive_getc)(void) = stdin_getc;
188 int (*receive_ungetc)(int) = stdin_ungetc;
189 int (*receive_feof)(void) = stdin_feof;
190 int (*receive_ferror)(void) = stdin_ferror;
191 BOOL (*receive_smtp_buffered)(void) = NULL; /* Only used for SMTP */
192 #endif
193
194
195 /* List of per-address expansion variables for clearing and saving/restoring
196 when verifying one address while routing/verifying another. We have to have
197 the size explicit, because it is referenced from more than one module. */
198
199 const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
200 CUSS &deliver_address_data,
201 CUSS &deliver_domain,
202 CUSS &deliver_domain_data,
203 CUSS &deliver_domain_orig,
204 CUSS &deliver_domain_parent,
205 CUSS &deliver_localpart,
206 CUSS &deliver_localpart_data,
207 CUSS &deliver_localpart_orig,
208 CUSS &deliver_localpart_parent,
209 CUSS &deliver_localpart_prefix,
210 CUSS &deliver_localpart_suffix,
211 CUSS (uschar **)(&deliver_recipients),
212 CUSS &deliver_host,
213 CUSS &deliver_home,
214 CUSS &address_file,
215 CUSS &address_pipe,
216 CUSS &self_hostname,
217 NULL };
218
219 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
220
221 /* General global variables */
222
223 header_line *acl_added_headers = NULL;
224 tree_node *acl_anchor = NULL;
225 uschar *acl_arg[9] = {NULL, NULL, NULL, NULL, NULL,
226 NULL, NULL, NULL, NULL};
227 int acl_narg = 0;
228
229 uschar *acl_not_smtp = NULL;
230 #ifdef WITH_CONTENT_SCAN
231 uschar *acl_not_smtp_mime = NULL;
232 #endif
233 uschar *acl_not_smtp_start = NULL;
234 uschar *acl_removed_headers = NULL;
235 uschar *acl_smtp_auth = NULL;
236 uschar *acl_smtp_connect = NULL;
237 uschar *acl_smtp_data = NULL;
238 #ifndef DISABLE_PRDR
239 uschar *acl_smtp_data_prdr = US"accept";
240 #endif
241 #ifndef DISABLE_DKIM
242 uschar *acl_smtp_dkim = NULL;
243 #endif
244 uschar *acl_smtp_etrn = NULL;
245 uschar *acl_smtp_expn = NULL;
246 uschar *acl_smtp_helo = NULL;
247 uschar *acl_smtp_mail = NULL;
248 uschar *acl_smtp_mailauth = NULL;
249 #ifdef WITH_CONTENT_SCAN
250 uschar *acl_smtp_mime = NULL;
251 #endif
252 uschar *acl_smtp_notquit = NULL;
253 uschar *acl_smtp_predata = NULL;
254 uschar *acl_smtp_quit = NULL;
255 uschar *acl_smtp_rcpt = NULL;
256 uschar *acl_smtp_starttls = NULL;
257 uschar *acl_smtp_vrfy = NULL;
258
259 BOOL acl_temp_details = FALSE;
260 tree_node *acl_var_c = NULL;
261 tree_node *acl_var_m = NULL;
262 uschar *acl_verify_message = NULL;
263 string_item *acl_warn_logged = NULL;
264
265 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
266 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
267
268 uschar *acl_wherenames[] = { US"RCPT",
269 US"MAIL",
270 US"PREDATA",
271 US"MIME",
272 US"DKIM",
273 US"DATA",
274 #ifndef DISABLE_PRDR
275 US"PRDR",
276 #endif
277 US"non-SMTP",
278 US"AUTH",
279 US"connection",
280 US"ETRN",
281 US"EXPN",
282 US"EHLO or HELO",
283 US"MAILAUTH",
284 US"non-SMTP-start",
285 US"NOTQUIT",
286 US"QUIT",
287 US"STARTTLS",
288 US"VRFY",
289 US"delivery",
290 US"unknown"
291 };
292
293 uschar *acl_wherecodes[] = { US"550", /* RCPT */
294 US"550", /* MAIL */
295 US"550", /* PREDATA */
296 US"550", /* MIME */
297 US"550", /* DKIM */
298 US"550", /* DATA */
299 #ifndef DISABLE_PRDR
300 US"550", /* RCPT PRDR */
301 #endif
302 US"0", /* not SMTP; not relevant */
303 US"503", /* AUTH */
304 US"550", /* connect */
305 US"458", /* ETRN */
306 US"550", /* EXPN */
307 US"550", /* HELO/EHLO */
308 US"0", /* MAILAUTH; not relevant */
309 US"0", /* not SMTP; not relevant */
310 US"0", /* NOTQUIT; not relevant */
311 US"0", /* QUIT; not relevant */
312 US"550", /* STARTTLS */
313 US"252", /* VRFY */
314 US"0", /* delivery; not relevant */
315 US"0" /* unknown; not relevant */
316 };
317
318 BOOL active_local_from_check = FALSE;
319 BOOL active_local_sender_retain = FALSE;
320 int body_8bitmime = 0;
321 BOOL accept_8bitmime = TRUE; /* deliberately not RFC compliant */
322 address_item *addr_duplicate = NULL;
323
324 address_item address_defaults = {
325 NULL, /* next */
326 NULL, /* parent */
327 NULL, /* first */
328 NULL, /* dupof */
329 NULL, /* start_router */
330 NULL, /* router */
331 NULL, /* transport */
332 NULL, /* host_list */
333 NULL, /* host_used */
334 NULL, /* fallback_hosts */
335 NULL, /* reply */
336 NULL, /* retries */
337 NULL, /* address */
338 NULL, /* unique */
339 NULL, /* cc_local_part */
340 NULL, /* lc_local_part */
341 NULL, /* local_part */
342 NULL, /* prefix */
343 NULL, /* suffix */
344 NULL, /* domain */
345 NULL, /* address_retry_key */
346 NULL, /* domain_retry_key */
347 NULL, /* current_dir */
348 NULL, /* home_dir */
349 NULL, /* message */
350 NULL, /* user_message */
351 NULL, /* onetime_parent */
352 NULL, /* pipe_expandn */
353 NULL, /* return_filename */
354 NULL, /* self_hostname */
355 NULL, /* shadow_message */
356 #ifdef SUPPORT_TLS
357 NULL, /* cipher */
358 NULL, /* ourcert */
359 NULL, /* peercert */
360 NULL, /* peerdn */
361 OCSP_NOT_REQ, /* ocsp */
362 #endif
363 NULL, /* authenticator */
364 NULL, /* auth_id */
365 NULL, /* auth_sndr */
366 NULL, /* dsn_orcpt */
367 0, /* dsn_flags */
368 0, /* dsn_aware */
369 (uid_t)(-1), /* uid */
370 (gid_t)(-1), /* gid */
371 0, /* flags */
372 { 0 }, /* domain_cache - any larger array should be zeroed */
373 { 0 }, /* localpart_cache - ditto */
374 -1, /* mode */
375 0, /* more_errno */
376 ERRNO_UNKNOWNERROR, /* basic_errno */
377 0, /* child_count */
378 -1, /* return_file */
379 SPECIAL_NONE, /* special_action */
380 DEFER, /* transport_return */
381 { /* fields that are propagated to children */
382 NULL, /* address_data */
383 NULL, /* domain_data */
384 NULL, /* localpart_data */
385 NULL, /* errors_address */
386 NULL, /* extra_headers */
387 NULL, /* remove_headers */
388 #ifdef EXPERIMENTAL_SRS
389 NULL, /* srs_sender */
390 #endif
391 #ifdef EXPERIMENTAL_INTERNATIONAL
392 FALSE, /* utf8 */
393 #endif
394 }
395 };
396
397 uschar *address_file = NULL;
398 uschar *address_pipe = NULL;
399 BOOL address_test_mode = FALSE;
400 tree_node *addresslist_anchor = NULL;
401 int addresslist_count = 0;
402 gid_t *admin_groups = NULL;
403 BOOL admin_user = FALSE;
404 BOOL allow_auth_unadvertised= FALSE;
405 BOOL allow_domain_literals = FALSE;
406 BOOL allow_mx_to_ip = FALSE;
407 BOOL allow_unqualified_recipient = TRUE; /* For local messages */
408 BOOL allow_unqualified_sender = TRUE; /* Reset for SMTP */
409 BOOL allow_utf8_domains = FALSE;
410 uschar *authenticated_fail_id = NULL;
411 uschar *authenticated_id = NULL;
412 uschar *authenticated_sender = NULL;
413 BOOL authentication_failed = FALSE;
414 auth_instance *auths = NULL;
415 uschar *auth_advertise_hosts = US"*";
416 auth_instance auth_defaults = {
417 NULL, /* chain pointer */
418 NULL, /* name */
419 NULL, /* info */
420 NULL, /* private options block pointer */
421 NULL, /* driver_name */
422 NULL, /* advertise_condition */
423 NULL, /* client_condition */
424 NULL, /* public_name */
425 NULL, /* set_id */
426 NULL, /* set_client_id */
427 NULL, /* server_mail_auth_condition */
428 NULL, /* server_debug_string */
429 NULL, /* server_condition */
430 FALSE, /* client */
431 FALSE, /* server */
432 FALSE /* advertised */
433 };
434
435 uschar *auth_defer_msg = US"reason not recorded";
436 uschar *auth_defer_user_msg = US"";
437 uschar *auth_vars[AUTH_VARS];
438 int auto_thaw = 0;
439 #ifdef WITH_CONTENT_SCAN
440 BOOL av_failed = FALSE;
441 uschar *av_scanner = US"sophie:/var/run/sophie"; /* AV scanner */
442 #endif
443
444 BOOL background_daemon = TRUE;
445
446 #if BASE_62 == 62
447 uschar *base62_chars=
448 US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
449 #else
450 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
451 #endif
452
453 uschar *bi_command = NULL;
454 uschar *big_buffer = NULL;
455 int big_buffer_size = BIG_BUFFER_SIZE;
456 #ifdef EXPERIMENTAL_BRIGHTMAIL
457 uschar *bmi_alt_location = NULL;
458 uschar *bmi_base64_tracker_verdict = NULL;
459 uschar *bmi_base64_verdict = NULL;
460 uschar *bmi_config_file = US"/opt/brightmail/etc/brightmail.cfg";
461 int bmi_deliver = 1;
462 int bmi_run = 0;
463 uschar *bmi_verdicts = NULL;
464 #endif
465 int body_linecount = 0;
466 int body_zerocount = 0;
467 uschar *bounce_message_file = NULL;
468 uschar *bounce_message_text = NULL;
469 uschar *bounce_recipient = NULL;
470 BOOL bounce_return_body = TRUE;
471 BOOL bounce_return_message = TRUE;
472 int bounce_return_size_limit = 100*1024;
473 uschar *bounce_sender_authentication = NULL;
474 int bsmtp_transaction_linecount = 0;
475
476 int callout_cache_domain_positive_expire = 7*24*60*60;
477 int callout_cache_domain_negative_expire = 3*60*60;
478 int callout_cache_positive_expire = 24*60*60;
479 int callout_cache_negative_expire = 2*60*60;
480 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
481 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
482 int check_log_inodes = 0;
483 int check_log_space = 0;
484 BOOL check_rfc2047_length = TRUE;
485 int check_spool_inodes = 0;
486 int check_spool_space = 0;
487 uschar *client_authenticator = NULL;
488 uschar *client_authenticated_id = NULL;
489 uschar *client_authenticated_sender = NULL;
490 int clmacro_count = 0;
491 uschar *clmacros[MAX_CLMACROS];
492 BOOL config_changed = FALSE;
493 FILE *config_file = NULL;
494 uschar *config_filename = NULL;
495 int config_lineno = 0;
496 #ifdef CONFIGURE_GROUP
497 gid_t config_gid = CONFIGURE_GROUP;
498 #endif
499 uschar *config_main_filelist = US CONFIGURE_FILE
500 "\0<-----------Space to patch configure_filename->";
501 uschar *config_main_filename = NULL;
502 uschar *config_main_directory = NULL;
503
504 #ifdef CONFIGURE_OWNER
505 uid_t config_uid = CONFIGURE_OWNER;
506 #endif
507
508 int connection_max_messages= -1;
509 uschar *continue_hostname = NULL;
510 uschar *continue_host_address = NULL;
511 BOOL continue_more = FALSE;
512 int continue_sequence = 1;
513 uschar *continue_transport = NULL;
514
515 uschar *csa_status = NULL;
516 cut_t cutthrough = {
517 FALSE, /* delivery: when to attempt */
518 -1, /* fd: open connection */
519 0, /* nrcpt: number of addresses */
520 };
521
522 BOOL daemon_listen = FALSE;
523 uschar *daemon_smtp_port = US"smtp";
524 int daemon_startup_retries = 9;
525 int daemon_startup_sleep = 30;
526
527 #ifdef EXPERIMENTAL_DCC
528 BOOL dcc_direct_add_header = FALSE;
529 uschar *dcc_header = NULL;
530 uschar *dcc_result = NULL;
531 uschar *dccifd_address = US"/usr/local/dcc/var/dccifd";
532 uschar *dccifd_options = US"header";
533 #endif
534
535 BOOL debug_daemon = FALSE;
536 int debug_fd = -1;
537 FILE *debug_file = NULL;
538 bit_table debug_options[] = {
539 { US"acl", D_acl },
540 { US"all", D_all },
541 { US"auth", D_auth },
542 { US"deliver", D_deliver },
543 { US"dns", D_dns },
544 { US"dnsbl", D_dnsbl },
545 { US"exec", D_exec },
546 { US"expand", D_expand },
547 { US"filter", D_filter },
548 { US"hints_lookup", D_hints_lookup },
549 { US"host_lookup", D_host_lookup },
550 { US"ident", D_ident },
551 { US"interface", D_interface },
552 { US"lists", D_lists },
553 { US"load", D_load },
554 { US"local_scan", D_local_scan },
555 { US"lookup", D_lookup },
556 { US"memory", D_memory },
557 { US"pid", D_pid },
558 { US"process_info", D_process_info },
559 { US"queue_run", D_queue_run },
560 { US"receive", D_receive },
561 { US"resolver", D_resolver },
562 { US"retry", D_retry },
563 { US"rewrite", D_rewrite },
564 { US"route", D_route },
565 { US"timestamp", D_timestamp },
566 { US"tls", D_tls },
567 { US"transport", D_transport },
568 { US"uid", D_uid },
569 { US"verify", D_verify }
570 };
571 int debug_options_count = sizeof(debug_options)/sizeof(bit_table);
572 unsigned int debug_selector = 0;
573 int delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
574 uschar *delay_warning_condition=
575 US"${if or {"
576 "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
577 "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
578 "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
579 "} {no}{yes}}";
580 BOOL delivery_date_remove = TRUE;
581 uschar *deliver_address_data = NULL;
582 int deliver_datafile = -1;
583 const uschar *deliver_domain = NULL;
584 uschar *deliver_domain_data = NULL;
585 const uschar *deliver_domain_orig = NULL;
586 const uschar *deliver_domain_parent = NULL;
587 BOOL deliver_drop_privilege = FALSE;
588 BOOL deliver_firsttime = FALSE;
589 BOOL deliver_force = FALSE;
590 BOOL deliver_freeze = FALSE;
591 time_t deliver_frozen_at = 0;
592 uschar *deliver_home = NULL;
593 const uschar *deliver_host = NULL;
594 const uschar *deliver_host_address = NULL;
595 int deliver_host_port = 0;
596 uschar *deliver_in_buffer = NULL;
597 ino_t deliver_inode = 0;
598 uschar *deliver_localpart = NULL;
599 uschar *deliver_localpart_data = NULL;
600 uschar *deliver_localpart_orig = NULL;
601 uschar *deliver_localpart_parent = NULL;
602 uschar *deliver_localpart_prefix = NULL;
603 uschar *deliver_localpart_suffix = NULL;
604 BOOL deliver_force_thaw = FALSE;
605 BOOL deliver_manual_thaw = FALSE;
606 uschar *deliver_out_buffer = NULL;
607 int deliver_queue_load_max = -1;
608 address_item *deliver_recipients = NULL;
609 uschar *deliver_selectstring = NULL;
610 BOOL deliver_selectstring_regex = FALSE;
611 uschar *deliver_selectstring_sender = NULL;
612 BOOL deliver_selectstring_sender_regex = FALSE;
613 #ifdef WITH_OLD_DEMIME
614 int demime_errorlevel = 0;
615 int demime_ok = 0;
616 uschar *demime_reason = NULL;
617 #endif
618 BOOL disable_callout_flush = FALSE;
619 BOOL disable_delay_flush = FALSE;
620 #ifdef ENABLE_DISABLE_FSYNC
621 BOOL disable_fsync = FALSE;
622 #endif
623 BOOL disable_ipv6 = FALSE;
624 BOOL disable_logging = FALSE;
625
626 #ifndef DISABLE_DKIM
627 uschar *dkim_cur_signer = NULL;
628 uschar *dkim_signers = NULL;
629 uschar *dkim_signing_domain = NULL;
630 uschar *dkim_signing_selector = NULL;
631 uschar *dkim_verify_signers = US"$dkim_signers";
632 BOOL dkim_collect_input = FALSE;
633 BOOL dkim_disable_verify = FALSE;
634 #endif
635 #ifdef EXPERIMENTAL_DMARC
636 BOOL dmarc_has_been_checked = FALSE;
637 uschar *dmarc_ar_header = NULL;
638 uschar *dmarc_domain_policy = NULL;
639 uschar *dmarc_forensic_sender = NULL;
640 uschar *dmarc_history_file = NULL;
641 uschar *dmarc_status = NULL;
642 uschar *dmarc_status_text = NULL;
643 uschar *dmarc_tld_file = NULL;
644 uschar *dmarc_used_domain = NULL;
645 BOOL dmarc_disable_verify = FALSE;
646 BOOL dmarc_enable_forensic = FALSE;
647 #endif
648
649 uschar *dns_again_means_nonexist = NULL;
650 int dns_csa_search_limit = 5;
651 BOOL dns_csa_use_reverse = TRUE;
652 #ifdef EXPERIMENTAL_DANE
653 int dns_dane_ok = -1;
654 #endif
655 uschar *dns_ipv4_lookup = NULL;
656 int dns_retrans = 0;
657 int dns_retry = 0;
658 int dns_dnssec_ok = -1; /* <0 = not coerced */
659 int dns_use_edns0 = -1; /* <0 = not coerced */
660 uschar *dnslist_domain = NULL;
661 uschar *dnslist_matched = NULL;
662 uschar *dnslist_text = NULL;
663 uschar *dnslist_value = NULL;
664 tree_node *domainlist_anchor = NULL;
665 int domainlist_count = 0;
666 BOOL dont_deliver = FALSE;
667 BOOL dot_ends = TRUE;
668 BOOL drop_cr = FALSE; /* No longer used */
669 uschar *dsn_from = US DEFAULT_DSN_FROM;
670
671 BOOL enable_dollar_recipients = FALSE;
672 BOOL envelope_to_remove = TRUE;
673 int errno_quota = ERRNO_QUOTA;
674 uschar *errors_copy = NULL;
675 int error_handling = ERRORS_SENDER;
676 uschar *errors_reply_to = NULL;
677 int errors_sender_rc = EXIT_FAILURE;
678 #ifdef EXPERIMENTAL_EVENT
679 uschar *event_action = NULL; /* expansion for delivery events */
680 uschar *event_data = NULL; /* auxilary data variable for event */
681 int event_defer_errno = 0;
682 const uschar *event_name = NULL; /* event name variable */
683 #endif
684
685
686 gid_t exim_gid = EXIM_GID;
687 BOOL exim_gid_set = TRUE; /* This gid is always set */
688 uschar *exim_path = US BIN_DIRECTORY "/exim"
689 "\0<---------------Space to patch exim_path->";
690 uid_t exim_uid = EXIM_UID;
691 BOOL exim_uid_set = TRUE; /* This uid is always set */
692 int expand_forbid = 0;
693 int expand_nlength[EXPAND_MAXN+1];
694 int expand_nmax = -1;
695 uschar *expand_nstring[EXPAND_MAXN+1];
696 BOOL expand_string_forcedfail = FALSE;
697 uschar *expand_string_message;
698 BOOL extract_addresses_remove_arguments = TRUE;
699 uschar *extra_local_interfaces = NULL;
700
701 int fake_response = OK;
702 uschar *fake_response_text = US"Your message has been rejected but is "
703 "being kept for evaluation.\nIf it was a "
704 "legitimate message, it may still be "
705 "delivered to the target recipient(s).";
706 int filter_n[FILTER_VARIABLE_COUNT];
707 BOOL filter_running = FALSE;
708 int filter_sn[FILTER_VARIABLE_COUNT];
709 int filter_test = FTEST_NONE;
710 uschar *filter_test_sfile = NULL;
711 uschar *filter_test_ufile = NULL;
712 uschar *filter_thisaddress = NULL;
713 int finduser_retries = 0;
714 #ifdef WITH_OLD_DEMIME
715 uschar *found_extension = NULL;
716 #endif
717 uid_t fixed_never_users[] = { FIXED_NEVER_USERS };
718 uschar *freeze_tell = NULL;
719 uschar *freeze_tell_config = NULL;
720 uschar *fudged_queue_times = US"";
721
722 uschar *gecos_name = NULL;
723 uschar *gecos_pattern = NULL;
724 rewrite_rule *global_rewrite_rules = NULL;
725
726 uschar *headers_charset = US HEADERS_CHARSET;
727 int header_insert_maxlen = 64 * 1024;
728 header_line *header_last = NULL;
729 header_line *header_list = NULL;
730 int header_maxsize = HEADER_MAXSIZE;
731 int header_line_maxsize = 0;
732
733 header_name header_names[] = {
734 { US"bcc", 3, TRUE, htype_bcc },
735 { US"cc", 2, TRUE, htype_cc },
736 { US"date", 4, TRUE, htype_date },
737 { US"delivery-date", 13, FALSE, htype_delivery_date },
738 { US"envelope-to", 11, FALSE, htype_envelope_to },
739 { US"from", 4, TRUE, htype_from },
740 { US"message-id", 10, TRUE, htype_id },
741 { US"received", 8, FALSE, htype_received },
742 { US"reply-to", 8, FALSE, htype_reply_to },
743 { US"return-path", 11, FALSE, htype_return_path },
744 { US"sender", 6, TRUE, htype_sender },
745 { US"subject", 7, FALSE, htype_subject },
746 { US"to", 2, TRUE, htype_to }
747 };
748
749 int header_names_size = sizeof(header_names)/sizeof(header_name);
750
751 BOOL header_rewritten = FALSE;
752 uschar *helo_accept_junk_hosts = NULL;
753 uschar *helo_allow_chars = US"";
754 uschar *helo_lookup_domains = US"@ : @[]";
755 uschar *helo_try_verify_hosts = NULL;
756 BOOL helo_verified = FALSE;
757 BOOL helo_verify_failed = FALSE;
758 uschar *helo_verify_hosts = NULL;
759 const uschar *hex_digits = CUS"0123456789abcdef";
760 uschar *hold_domains = NULL;
761 BOOL host_checking = FALSE;
762 BOOL host_checking_callout = FALSE;
763 uschar *host_data = NULL;
764 BOOL host_find_failed_syntax= FALSE;
765 uschar *host_lookup = NULL;
766 BOOL host_lookup_deferred = FALSE;
767 BOOL host_lookup_failed = FALSE;
768 uschar *host_lookup_order = US"bydns:byaddr";
769 uschar *host_lookup_msg = US"";
770 int host_number = 0;
771 uschar *host_number_string = NULL;
772 uschar *host_reject_connection = NULL;
773 tree_node *hostlist_anchor = NULL;
774 int hostlist_count = 0;
775 uschar *hosts_treat_as_local = NULL;
776 uschar *hosts_connection_nolog = NULL;
777
778 int ignore_bounce_errors_after = 10*7*24*60*60; /* 10 weeks */
779 BOOL ignore_fromline_local = FALSE;
780 uschar *ignore_fromline_hosts = NULL;
781 BOOL inetd_wait_mode = FALSE;
782 int inetd_wait_timeout = -1;
783 uschar *interface_address = NULL;
784 int interface_port = -1;
785 BOOL is_inetd = FALSE;
786 uschar *iterate_item = NULL;
787
788 int journal_fd = -1;
789
790 int keep_malformed = 4*24*60*60; /* 4 days */
791
792 uschar *eldap_dn = NULL;
793 int load_average = -2;
794 BOOL local_error_message = FALSE;
795 BOOL local_from_check = TRUE;
796 uschar *local_from_prefix = NULL;
797 uschar *local_from_suffix = NULL;
798
799 #if HAVE_IPV6
800 uschar *local_interfaces = US"<; ::0 ; 0.0.0.0";
801 #else
802 uschar *local_interfaces = US"0.0.0.0";
803 #endif
804
805 uschar *local_scan_data = NULL;
806 int local_scan_timeout = 5*60;
807 BOOL local_sender_retain = FALSE;
808 gid_t local_user_gid = (gid_t)(-1);
809 uid_t local_user_uid = (uid_t)(-1);
810
811 tree_node *localpartlist_anchor= NULL;
812 int localpartlist_count = 0;
813 uschar *log_buffer = NULL;
814 unsigned int log_extra_selector = LX_default;
815 uschar *log_file_path = US LOG_FILE_PATH
816 "\0<--------------Space to patch log_file_path->";
817
818 /* Those log options with L_xxx identifiers have values less than 0x800000 and
819 are the ones that get put into log_write_selector. They can be used in calls to
820 log_write() to test for the bit. The options with LX_xxx identifiers have
821 values greater than 0x80000000 and are put into log_extra_selector (without the
822 top bit). They are never used in calls to log_write(), but are tested
823 independently. This separation became necessary when the number of log
824 selectors was getting close to filling a 32-bit word. */
825
826 /* Note that this list must be in alphabetical order. */
827
828 bit_table log_options[] = {
829 { US"8bitmime", LX_8bitmime },
830 { US"acl_warn_skipped", LX_acl_warn_skipped },
831 { US"address_rewrite", L_address_rewrite },
832 { US"all", L_all },
833 { US"all_parents", L_all_parents },
834 { US"arguments", LX_arguments },
835 { US"connection_reject", L_connection_reject },
836 { US"delay_delivery", L_delay_delivery },
837 { US"deliver_time", LX_deliver_time },
838 { US"delivery_size", LX_delivery_size },
839 { US"dnslist_defer", L_dnslist_defer },
840 { US"etrn", L_etrn },
841 { US"host_lookup_failed", L_host_lookup_failed },
842 { US"ident_timeout", LX_ident_timeout },
843 { US"incoming_interface", LX_incoming_interface },
844 { US"incoming_port", LX_incoming_port },
845 { US"lost_incoming_connection", L_lost_incoming_connection },
846 { US"outgoing_port", LX_outgoing_port },
847 { US"pid", LX_pid },
848 #ifdef EXPERIMENTAL_PROXY
849 { US"proxy", LX_proxy },
850 #endif
851 { US"queue_run", L_queue_run },
852 { US"queue_time", LX_queue_time },
853 { US"queue_time_overall", LX_queue_time_overall },
854 { US"received_recipients", LX_received_recipients },
855 { US"received_sender", LX_received_sender },
856 { US"rejected_header", LX_rejected_header },
857 { US"rejected_headers", LX_rejected_header },
858 { US"retry_defer", L_retry_defer },
859 { US"return_path_on_delivery", LX_return_path_on_delivery },
860 { US"sender_on_delivery", LX_sender_on_delivery },
861 { US"sender_verify_fail", LX_sender_verify_fail },
862 { US"size_reject", L_size_reject },
863 { US"skip_delivery", L_skip_delivery },
864 { US"smtp_confirmation", LX_smtp_confirmation },
865 { US"smtp_connection", L_smtp_connection },
866 { US"smtp_incomplete_transaction", L_smtp_incomplete_transaction },
867 { US"smtp_mailauth", LX_smtp_mailauth },
868 { US"smtp_no_mail", LX_smtp_no_mail },
869 { US"smtp_protocol_error", L_smtp_protocol_error },
870 { US"smtp_syntax_error", L_smtp_syntax_error },
871 { US"subject", LX_subject },
872 { US"tls_certificate_verified", LX_tls_certificate_verified },
873 { US"tls_cipher", LX_tls_cipher },
874 { US"tls_peerdn", LX_tls_peerdn },
875 { US"tls_sni", LX_tls_sni },
876 { US"unknown_in_list", LX_unknown_in_list }
877 };
878
879 int log_options_count = sizeof(log_options)/sizeof(bit_table);
880 int log_reject_target = 0;
881 uschar *log_selector_string = NULL;
882 FILE *log_stderr = NULL;
883 BOOL log_testing_mode = FALSE;
884 BOOL log_timezone = FALSE;
885 unsigned int log_write_selector= L_default;
886 uschar *login_sender_address = NULL;
887 uschar *lookup_dnssec_authenticated = NULL;
888 int lookup_open_max = 25;
889 uschar *lookup_value = NULL;
890
891 macro_item *macros = NULL;
892 uschar *mailstore_basename = NULL;
893 #ifdef WITH_CONTENT_SCAN
894 uschar *malware_name = NULL; /* Virus Name */
895 #endif
896 int max_received_linelength= 0;
897 int max_username_length = 0;
898 int message_age = 0;
899 uschar *message_body = NULL;
900 uschar *message_body_end = NULL;
901 BOOL message_body_newlines = FALSE;
902 int message_body_size = 0;
903 int message_body_visible = 500;
904 int message_ended = END_NOTSTARTED;
905 uschar *message_headers = NULL;
906 uschar *message_id;
907 uschar *message_id_domain = NULL;
908 uschar *message_id_text = NULL;
909 struct timeval message_id_tv = { 0, 0 };
910 uschar message_id_option[MESSAGE_ID_LENGTH + 3];
911 uschar *message_id_external;
912 int message_linecount = 0;
913 BOOL message_logs = TRUE;
914 int message_size = 0;
915 uschar *message_size_limit = US"50M";
916 #ifdef EXPERIMENTAL_INTERNATIONAL
917 BOOL message_smtputf8 = FALSE;
918 int message_utf8_downconvert = 0; /* -1 ifneeded; 0 never; 1 always */
919 #endif
920 uschar message_subdir[2] = { 0, 0 };
921 uschar *message_reference = NULL;
922
923 /* MIME ACL expandables */
924 #ifdef WITH_CONTENT_SCAN
925 int mime_anomaly_level = 0;
926 const uschar *mime_anomaly_text = NULL;
927 uschar *mime_boundary = NULL;
928 uschar *mime_charset = NULL;
929 uschar *mime_content_description = NULL;
930 uschar *mime_content_disposition = NULL;
931 uschar *mime_content_id = NULL;
932 unsigned int mime_content_size = 0;
933 uschar *mime_content_transfer_encoding = NULL;
934 uschar *mime_content_type = NULL;
935 uschar *mime_decoded_filename = NULL;
936 uschar *mime_filename = NULL;
937 int mime_is_multipart = 0;
938 int mime_is_coverletter = 0;
939 int mime_is_rfc822 = 0;
940 int mime_part_count = -1;
941 #endif
942
943 BOOL mua_wrapper = FALSE;
944
945 uid_t *never_users = NULL;
946 #ifdef WITH_CONTENT_SCAN
947 BOOL no_mbox_unspool = FALSE;
948 #endif
949 BOOL no_multiline_responses = FALSE;
950
951 uid_t original_euid;
952 gid_t originator_gid;
953 uschar *originator_login = NULL;
954 uschar *originator_name = NULL;
955 uid_t originator_uid;
956 uschar *override_local_interfaces = NULL;
957 uschar *override_pid_file_path = NULL;
958
959 BOOL parse_allow_group = FALSE;
960 BOOL parse_found_group = FALSE;
961 uschar *percent_hack_domains = NULL;
962 uschar *pid_file_path = US PID_FILE_PATH
963 "\0<--------------Space to patch pid_file_path->";
964 BOOL pipelining_enable = TRUE;
965 uschar *pipelining_advertise_hosts = US"*";
966 BOOL preserve_message_logs = FALSE;
967 uschar *primary_hostname = NULL;
968 BOOL print_topbitchars = FALSE;
969 uschar process_info[PROCESS_INFO_SIZE];
970 int process_info_len = 0;
971 uschar *process_log_path = NULL;
972 BOOL prod_requires_admin = TRUE;
973
974 #ifdef EXPERIMENTAL_PROXY
975 uschar *proxy_host_address = US"";
976 int proxy_host_port = 0;
977 uschar *proxy_required_hosts = US"";
978 BOOL proxy_session = FALSE;
979 BOOL proxy_session_failed = FALSE;
980 uschar *proxy_target_address = US"";
981 int proxy_target_port = 0;
982 #endif
983
984 uschar *prvscheck_address = NULL;
985 uschar *prvscheck_keynum = NULL;
986 uschar *prvscheck_result = NULL;
987
988
989 const uschar *qualify_domain_recipient = NULL;
990 uschar *qualify_domain_sender = NULL;
991 BOOL queue_2stage = FALSE;
992 uschar *queue_domains = NULL;
993 int queue_interval = -1;
994 BOOL queue_list_requires_admin = TRUE;
995 BOOL queue_only = FALSE;
996 uschar *queue_only_file = NULL;
997 int queue_only_load = -1;
998 BOOL queue_only_load_latch = TRUE;
999 BOOL queue_only_override = TRUE;
1000 BOOL queue_only_policy = FALSE;
1001 BOOL queue_run_first_delivery = FALSE;
1002 BOOL queue_run_force = FALSE;
1003 BOOL queue_run_in_order = FALSE;
1004 BOOL queue_run_local = FALSE;
1005 int queue_run_max = 5;
1006 pid_t queue_run_pid = (pid_t)0;
1007 int queue_run_pipe = -1;
1008 BOOL queue_running = FALSE;
1009 BOOL queue_smtp = FALSE;
1010 uschar *queue_smtp_domains = NULL;
1011
1012 unsigned int random_seed = 0;
1013 tree_node *ratelimiters_cmd = NULL;
1014 tree_node *ratelimiters_conn = NULL;
1015 tree_node *ratelimiters_mail = NULL;
1016 uschar *raw_active_hostname = NULL;
1017 uschar *raw_sender = NULL;
1018 uschar **raw_recipients = NULL;
1019 int raw_recipients_count = 0;
1020
1021 int rcpt_count = 0;
1022 int rcpt_fail_count = 0;
1023 int rcpt_defer_count = 0;
1024 gid_t real_gid;
1025 uid_t real_uid;
1026 BOOL really_exim = TRUE;
1027 BOOL receive_call_bombout = FALSE;
1028 int receive_linecount = 0;
1029 int receive_messagecount = 0;
1030 int receive_timeout = 0;
1031 int received_count = 0;
1032 uschar *received_for = NULL;
1033
1034 /* This is the default text for Received headers generated by Exim. The
1035 date will be automatically added on the end. */
1036
1037 uschar *received_header_text = US
1038 "Received: "
1039 "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
1040 "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
1041 "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
1042 "by $primary_hostname "
1043 "${if def:received_protocol {with $received_protocol}} "
1044 #ifdef SUPPORT_TLS
1045 "${if def:tls_cipher {($tls_cipher)\n\t}}"
1046 #endif
1047 "(Exim $version_number)\n\t"
1048 "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
1049 "id $message_exim_id"
1050 "${if def:received_for {\n\tfor $received_for}}"
1051 "\0<---------------Space to patch received_header_text->";
1052
1053 int received_headers_max = 30;
1054 uschar *received_protocol = NULL;
1055 int received_time = 0;
1056 uschar *recipient_data = NULL;
1057 uschar *recipient_unqualified_hosts = NULL;
1058 uschar *recipient_verify_failure = NULL;
1059 int recipients_count = 0;
1060 BOOL recipients_discarded = FALSE;
1061 recipient_item *recipients_list = NULL;
1062 int recipients_list_max = 0;
1063 int recipients_max = 0;
1064 BOOL recipients_max_reject = FALSE;
1065 const pcre *regex_AUTH = NULL;
1066 const pcre *regex_check_dns_names = NULL;
1067 const pcre *regex_From = NULL;
1068 const pcre *regex_IGNOREQUOTA = NULL;
1069 const pcre *regex_PIPELINING = NULL;
1070 const pcre *regex_SIZE = NULL;
1071 const pcre *regex_smtp_code = NULL;
1072 const pcre *regex_ismsgid = NULL;
1073 #ifdef WHITELIST_D_MACROS
1074 const pcre *regex_whitelisted_macro = NULL;
1075 #endif
1076 #ifdef WITH_CONTENT_SCAN
1077 uschar *regex_match_string = NULL;
1078 #endif
1079 int remote_delivery_count = 0;
1080 int remote_max_parallel = 2;
1081 uschar *remote_sort_domains = NULL;
1082 int retry_data_expire = 7*24*60*60;
1083 int retry_interval_max = 24*60*60;
1084 int retry_maximum_timeout = 0; /* set from retry config */
1085 retry_config *retries = NULL;
1086 uschar *return_path = NULL;
1087 BOOL return_path_remove = TRUE;
1088 int rewrite_existflags = 0;
1089 uschar *rfc1413_hosts = US"@[]";
1090 int rfc1413_query_timeout = 0;
1091 /* BOOL rfc821_domains = FALSE; <<< on the way out */
1092 uid_t root_gid = ROOT_GID;
1093 uid_t root_uid = ROOT_UID;
1094
1095 router_instance *routers = NULL;
1096 router_instance router_defaults = {
1097 NULL, /* chain pointer */
1098 NULL, /* name */
1099 NULL, /* info */
1100 NULL, /* private options block pointer */
1101 NULL, /* driver name */
1102
1103 NULL, /* address_data */
1104 #ifdef EXPERIMENTAL_BRIGHTMAIL
1105 NULL, /* bmi_rule */
1106 #endif
1107 NULL, /* cannot_route_message */
1108 NULL, /* condition */
1109 NULL, /* current_directory */
1110 NULL, /* debug_string */
1111 NULL, /* domains */
1112 NULL, /* errors_to */
1113 NULL, /* expand_gid */
1114 NULL, /* expand_uid */
1115 NULL, /* expand_more */
1116 NULL, /* expand_unseen */
1117 NULL, /* extra_headers */
1118 NULL, /* fallback_hosts */
1119 NULL, /* home_directory */
1120 NULL, /* ignore_target_hosts */
1121 NULL, /* local_parts */
1122 NULL, /* pass_router_name */
1123 NULL, /* prefix */
1124 NULL, /* redirect_router_name */
1125 NULL, /* remove_headers */
1126 NULL, /* require_files */
1127 NULL, /* router_home_directory */
1128 US"freeze", /* self */
1129 NULL, /* senders */
1130 NULL, /* suffix */
1131 NULL, /* translate_ip_address */
1132 NULL, /* transport_name */
1133
1134 TRUE, /* address_test */
1135 #ifdef EXPERIMENTAL_BRIGHTMAIL
1136 FALSE, /* bmi_deliver_alternate */
1137 FALSE, /* bmi_deliver_default */
1138 FALSE, /* bmi_dont_deliver */
1139 #endif
1140 TRUE, /* expn */
1141 FALSE, /* caseful_local_part */
1142 FALSE, /* check_local_user */
1143 FALSE, /* disable_logging */
1144 FALSE, /* fail_verify_recipient */
1145 FALSE, /* fail_verify_sender */
1146 FALSE, /* gid_set */
1147 FALSE, /* initgroups */
1148 TRUE_UNSET, /* log_as_local */
1149 TRUE, /* more */
1150 FALSE, /* pass_on_timeout */
1151 FALSE, /* prefix_optional */
1152 TRUE, /* repeat_use */
1153 TRUE_UNSET, /* retry_use_local_part - fudge "unset" */
1154 FALSE, /* same_domain_copy_routing */
1155 FALSE, /* self_rewrite */
1156 FALSE, /* suffix_optional */
1157 FALSE, /* verify_only */
1158 TRUE, /* verify_recipient */
1159 TRUE, /* verify_sender */
1160 FALSE, /* uid_set */
1161 FALSE, /* unseen */
1162 FALSE, /* dsn_lasthop */
1163
1164 self_freeze, /* self_code */
1165 (uid_t)(-1), /* uid */
1166 (gid_t)(-1), /* gid */
1167
1168 NULL, /* fallback_hostlist */
1169 NULL, /* transport instance */
1170 NULL, /* pass_router */
1171 NULL, /* redirect_router */
1172
1173 NULL, /* dnssec_request_domains */
1174 NULL /* dnssec_require_domains */
1175 };
1176
1177 uschar *router_name = NULL;
1178
1179 ip_address_item *running_interfaces = NULL;
1180 BOOL running_in_test_harness = FALSE;
1181
1182 /* This is a weird one. The following string gets patched in the binary by the
1183 script that sets up a copy of Exim for running in the test harness. It seems
1184 that compilers are now clever, and share constant strings if they can.
1185 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1186 make use of the end of this string in order to save space. So the patching then
1187 wrecks this. We defeat this optimization by adding some additional characters
1188 onto the end of the string. */
1189
1190 uschar *running_status = US">>>running<<<" "\0EXTRA";
1191
1192 int runrc = 0;
1193
1194 uschar *search_error_message = NULL;
1195 BOOL search_find_defer = FALSE;
1196 uschar *self_hostname = NULL;
1197 uschar *sender_address = NULL;
1198 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1199 uschar *sender_address_data = NULL;
1200 BOOL sender_address_forced = FALSE;
1201 uschar *sender_address_unrewritten = NULL;
1202 uschar *sender_data = NULL;
1203 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1204 uschar *sender_fullhost = NULL;
1205 uschar *sender_helo_name = NULL;
1206 uschar **sender_host_aliases = &no_aliases;
1207 uschar *sender_host_address = NULL;
1208 uschar *sender_host_authenticated = NULL;
1209 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1210 BOOL sender_host_dnssec = FALSE;
1211 uschar *sender_host_name = NULL;
1212 int sender_host_port = 0;
1213 BOOL sender_host_notsocket = FALSE;
1214 BOOL sender_host_unknown = FALSE;
1215 uschar *sender_ident = NULL;
1216 BOOL sender_local = FALSE;
1217 BOOL sender_name_forced = FALSE;
1218 uschar *sender_rate = NULL;
1219 uschar *sender_rate_limit = NULL;
1220 uschar *sender_rate_period = NULL;
1221 uschar *sender_rcvhost = NULL;
1222 BOOL sender_set_untrusted = FALSE;
1223 uschar *sender_unqualified_hosts = NULL;
1224 uschar *sender_verify_failure = NULL;
1225 address_item *sender_verified_list = NULL;
1226 address_item *sender_verified_failed = NULL;
1227 int sender_verified_rc = -1;
1228 BOOL sender_verified_responded = FALSE;
1229 uschar *sending_ip_address = NULL;
1230 int sending_port = -1;
1231 SIGNAL_BOOL sigalrm_seen = FALSE;
1232 uschar **sighup_argv = NULL;
1233 int slow_lookup_log = 0; /* millisecs, zero disables */
1234 int smtp_accept_count = 0;
1235 BOOL smtp_accept_keepalive = TRUE;
1236 int smtp_accept_max = 20;
1237 int smtp_accept_max_nonmail= 10;
1238 uschar *smtp_accept_max_nonmail_hosts = US"*";
1239 int smtp_accept_max_per_connection = 1000;
1240 uschar *smtp_accept_max_per_host = NULL;
1241 int smtp_accept_queue = 0;
1242 int smtp_accept_queue_per_connection = 10;
1243 int smtp_accept_reserve = 0;
1244 uschar *smtp_active_hostname = NULL;
1245 BOOL smtp_authenticated = FALSE;
1246 uschar *smtp_banner = US"$smtp_active_hostname ESMTP "
1247 "Exim $version_number $tod_full"
1248 "\0<---------------Space to patch smtp_banner->";
1249 BOOL smtp_batched_input = FALSE;
1250 BOOL smtp_check_spool_space = TRUE;
1251 int smtp_ch_index = 0;
1252 uschar *smtp_cmd_argument = NULL;
1253 uschar *smtp_cmd_buffer = NULL;
1254 time_t smtp_connection_start = 0;
1255 uschar smtp_connection_had[SMTP_HBUFF_SIZE];
1256 int smtp_connect_backlog = 20;
1257 double smtp_delay_mail = 0.0;
1258 double smtp_delay_rcpt = 0.0;
1259 BOOL smtp_enforce_sync = TRUE;
1260 FILE *smtp_in = NULL;
1261 BOOL smtp_input = FALSE;
1262 int smtp_load_reserve = -1;
1263 int smtp_mailcmd_count = 0;
1264 FILE *smtp_out = NULL;
1265 uschar *smtp_etrn_command = NULL;
1266 BOOL smtp_etrn_serialize = TRUE;
1267 int smtp_max_synprot_errors= 3;
1268 int smtp_max_unknown_commands = 3;
1269 uschar *smtp_notquit_reason = NULL;
1270 uschar *smtp_ratelimit_hosts = NULL;
1271 uschar *smtp_ratelimit_mail = NULL;
1272 uschar *smtp_ratelimit_rcpt = NULL;
1273 uschar *smtp_read_error = US"";
1274 int smtp_receive_timeout = 5*60;
1275 uschar *smtp_receive_timeout_s = NULL;
1276 uschar *smtp_reserve_hosts = NULL;
1277 BOOL smtp_return_error_details = FALSE;
1278 int smtp_rlm_base = 0;
1279 double smtp_rlm_factor = 0.0;
1280 int smtp_rlm_limit = 0;
1281 int smtp_rlm_threshold = INT_MAX;
1282 int smtp_rlr_base = 0;
1283 double smtp_rlr_factor = 0.0;
1284 int smtp_rlr_limit = 0;
1285 int smtp_rlr_threshold = INT_MAX;
1286 BOOL smtp_use_pipelining = FALSE;
1287 BOOL smtp_use_size = FALSE;
1288 #ifdef EXPERIMENTAL_INTERNATIONAL
1289 uschar *smtputf8_advertise_hosts = US"*"; /* overridden under test-harness */
1290 #endif
1291
1292 #ifdef WITH_CONTENT_SCAN
1293 uschar *spamd_address = US"127.0.0.1 783";
1294 uschar *spam_bar = NULL;
1295 uschar *spam_report = NULL;
1296 uschar *spam_action = NULL;
1297 uschar *spam_score = NULL;
1298 uschar *spam_score_int = NULL;
1299 #endif
1300 #ifdef EXPERIMENTAL_SPF
1301 uschar *spf_guess = US"v=spf1 a/24 mx/24 ptr ?all";
1302 uschar *spf_header_comment = NULL;
1303 uschar *spf_received = NULL;
1304 uschar *spf_result = NULL;
1305 uschar *spf_smtp_comment = NULL;
1306 #endif
1307
1308 BOOL split_spool_directory = FALSE;
1309 uschar *spool_directory = US SPOOL_DIRECTORY
1310 "\0<--------------Space to patch spool_directory->";
1311 #ifdef EXPERIMENTAL_SRS
1312 uschar *srs_config = NULL;
1313 uschar *srs_db_address = NULL;
1314 uschar *srs_db_key = NULL;
1315 int srs_hashlength = 6;
1316 int srs_hashmin = -1;
1317 int srs_maxage = 31;
1318 uschar *srs_orig_recipient = NULL;
1319 uschar *srs_orig_sender = NULL;
1320 uschar *srs_recipient = NULL;
1321 uschar *srs_secrets = NULL;
1322 uschar *srs_status = NULL;
1323 BOOL srs_usehash = TRUE;
1324 BOOL srs_usetimestamp = TRUE;
1325 #endif
1326 BOOL strict_acl_vars = FALSE;
1327 int string_datestamp_offset= -1;
1328 int string_datestamp_length= 0;
1329 int string_datestamp_type = -1;
1330 BOOL strip_excess_angle_brackets = FALSE;
1331 BOOL strip_trailing_dot = FALSE;
1332 uschar *submission_domain = NULL;
1333 BOOL submission_mode = FALSE;
1334 uschar *submission_name = NULL;
1335 BOOL suppress_local_fixups = FALSE;
1336 BOOL suppress_local_fixups_default = FALSE;
1337 BOOL synchronous_delivery = FALSE;
1338 BOOL syslog_duplication = TRUE;
1339 int syslog_facility = LOG_MAIL;
1340 uschar *syslog_processname = US"exim";
1341 BOOL syslog_timestamp = TRUE;
1342 uschar *system_filter = NULL;
1343
1344 uschar *system_filter_directory_transport = NULL;
1345 uschar *system_filter_file_transport = NULL;
1346 uschar *system_filter_pipe_transport = NULL;
1347 uschar *system_filter_reply_transport = NULL;
1348
1349 gid_t system_filter_gid = 0;
1350 BOOL system_filter_gid_set = FALSE;
1351 uid_t system_filter_uid = (uid_t)-1;
1352 BOOL system_filter_uid_set = FALSE;
1353 BOOL system_filtering = FALSE;
1354
1355 BOOL tcp_nodelay = TRUE;
1356 #ifdef USE_TCP_WRAPPERS
1357 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1358 #endif
1359 int test_harness_load_avg = 0;
1360 int thismessage_size_limit = 0;
1361 int timeout_frozen_after = 0;
1362 BOOL timestamps_utc = FALSE;
1363
1364 transport_instance *transports = NULL;
1365
1366 transport_instance transport_defaults = {
1367 NULL, /* chain pointer */
1368 NULL, /* name */
1369 NULL, /* info */
1370 NULL, /* private options block pointer */
1371 NULL, /* driver name */
1372 NULL, /* setup entry point */
1373 1, /* batch_max */
1374 NULL, /* batch_id */
1375 NULL, /* home_dir */
1376 NULL, /* current_dir */
1377 NULL, /* expand-multi-domain */
1378 TRUE, /* multi-domain */
1379 FALSE, /* overrides_hosts */
1380 100, /* max_addresses */
1381 500, /* connection_max_messages */
1382 FALSE, /* deliver_as_creator */
1383 FALSE, /* disable_logging */
1384 FALSE, /* initgroups */
1385 FALSE, /* uid_set */
1386 FALSE, /* gid_set */
1387 (uid_t)(-1), /* uid */
1388 (gid_t)(-1), /* gid */
1389 NULL, /* expand_uid */
1390 NULL, /* expand_gid */
1391 NULL, /* warn_message */
1392 NULL, /* shadow */
1393 NULL, /* shadow_condition */
1394 NULL, /* filter_command */
1395 NULL, /* add_headers */
1396 NULL, /* remove_headers */
1397 NULL, /* return_path */
1398 NULL, /* debug_string */
1399 NULL, /* message_size_limit */
1400 NULL, /* headers_rewrite */
1401 NULL, /* rewrite_rules */
1402 0, /* rewrite_existflags */
1403 300, /* filter_timeout */
1404 FALSE, /* body_only */
1405 FALSE, /* delivery_date_add */
1406 FALSE, /* envelope_to_add */
1407 FALSE, /* headers_only */
1408 FALSE, /* rcpt_include_affixes */
1409 FALSE, /* return_path_add */
1410 FALSE, /* return_output */
1411 FALSE, /* return_fail_output */
1412 FALSE, /* log_output */
1413 FALSE, /* log_fail_output */
1414 FALSE, /* log_defer_output */
1415 TRUE_UNSET /* retry_use_local_part: BOOL, but set neither
1416 1 nor 0 so can detect unset */
1417 #ifdef EXPERIMENTAL_EVENT
1418 ,NULL /* event_action */
1419 #endif
1420 };
1421
1422 int transport_count;
1423 uschar *transport_name = NULL;
1424 int transport_newlines;
1425 const uschar **transport_filter_argv = NULL;
1426 int transport_filter_timeout;
1427 BOOL transport_filter_timed_out = FALSE;
1428 int transport_write_timeout= 0;
1429
1430 tree_node *tree_dns_fails = NULL;
1431 tree_node *tree_duplicates = NULL;
1432 tree_node *tree_nonrecipients = NULL;
1433 tree_node *tree_unusable = NULL;
1434
1435 BOOL trusted_caller = FALSE;
1436 BOOL trusted_config = TRUE;
1437 gid_t *trusted_groups = NULL;
1438 uid_t *trusted_users = NULL;
1439 uschar *timezone_string = US TIMEZONE_DEFAULT;
1440
1441 uschar *unknown_login = NULL;
1442 uschar *unknown_username = NULL;
1443 uschar *untrusted_set_sender = NULL;
1444
1445 /* A regex for matching a "From_" line in an incoming message, in the form
1446
1447 From ph10 Fri Jan 5 12:35 GMT 1996
1448
1449 which the "mail" commands send to the MTA (undocumented, of course), or in
1450 the form
1451
1452 From ph10 Fri, 7 Jan 97 14:00:00 GMT
1453
1454 which is apparently used by some UUCPs, despite it not being in RFC 976.
1455 Because of variations in time formats, just match up to the minutes. That
1456 should be sufficient. Examples have been seen of time fields like 12:1:03,
1457 so just require one digit for hours and minutes. The weekday is also absent
1458 in some forms. */
1459
1460 uschar *uucp_from_pattern = US
1461 "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?" /* Common start */
1462 "(?:" /* Non-extracting bracket */
1463 "[a-zA-Z]{3}\\s+\\d?\\d|" /* First form */
1464 "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?" /* Second form */
1465 ")" /* End alternation */
1466 "\\s+\\d\\d?:\\d\\d?"; /* Start of time */
1467
1468 uschar *uucp_from_sender = US"$1";
1469
1470 uschar *verify_mode = NULL;
1471 uschar *version_copyright =
1472 US"Copyright (c) University of Cambridge, 1995 - 2014\n"
1473 "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2014";
1474 uschar *version_date = US"?";
1475 uschar *version_cnumber = US"????";
1476 uschar *version_string = US"?";
1477
1478 uschar *warn_message_file = NULL;
1479 int warning_count = 0;
1480 uschar *warnmsg_delay = NULL;
1481 uschar *warnmsg_recipients = NULL;
1482 BOOL write_rejectlog = TRUE;
1483
1484
1485 /* End of globals.c */
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