Basic cutthrough delivery.
[exim.git] / src / src / globals.c
1 /*************************************************
2 *     Exim - an Internet mail transport agent    *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2012 */
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   { "driver",        opt_stringptr | opt_public,
21                  (void *)(offsetof(auth_instance, driver_name)) },
22   { "public_name",   opt_stringptr | opt_public,
23                  (void *)(offsetof(auth_instance, public_name)) },
24   { "server_advertise_condition", opt_stringptr | opt_public,
25                  (void *)(offsetof(auth_instance, advertise_condition))},
26   { "server_condition", opt_stringptr | opt_public,
27                  (void *)(offsetof(auth_instance, server_condition)) },
28   { "server_debug_print", opt_stringptr | opt_public,
29                  (void *)(offsetof(auth_instance, server_debug_string)) },
30   { "server_mail_auth_condition", opt_stringptr | opt_public,
31                  (void *)(offsetof(auth_instance, mail_auth_condition)) },
32   { "server_set_id", opt_stringptr | opt_public,
33                  (void *)(offsetof(auth_instance, set_id)) }
34 };
35
36 int     optionlist_auths_size = sizeof(optionlist_auths)/sizeof(optionlist);
37
38 /* An empty host aliases list. */
39
40 uschar *no_aliases             = NULL;
41
42
43 /* For comments on these variables, see globals.h. I'm too idle to
44 duplicate them here... */
45
46 #ifdef EXIM_PERL
47 uschar *opt_perl_startup       = NULL;
48 BOOL    opt_perl_at_start      = FALSE;
49 BOOL    opt_perl_started       = FALSE;
50 #endif
51
52 #ifdef EXPAND_DLFUNC
53 tree_node *dlobj_anchor        = NULL;
54 #endif
55
56 #ifdef LOOKUP_IBASE
57 uschar *ibase_servers          = NULL;
58 #endif
59
60 #ifdef LOOKUP_LDAP
61 uschar *eldap_ca_cert_dir      = NULL;
62 uschar *eldap_ca_cert_file     = NULL;
63 uschar *eldap_cert_file        = NULL;
64 uschar *eldap_cert_key         = NULL;
65 uschar *eldap_cipher_suite     = NULL;
66 uschar *eldap_default_servers  = NULL;
67 uschar *eldap_require_cert     = NULL;
68 int     eldap_version          = -1;
69 BOOL    eldap_start_tls        = FALSE;
70 #endif
71
72 #ifdef LOOKUP_MYSQL
73 uschar *mysql_servers          = NULL;
74 #endif
75
76 #ifdef LOOKUP_ORACLE
77 uschar *oracle_servers         = NULL;
78 #endif
79
80 #ifdef LOOKUP_PGSQL
81 uschar *pgsql_servers          = NULL;
82 #endif
83
84 #ifdef LOOKUP_SQLITE
85 int     sqlite_lock_timeout    = 5;
86 #endif
87
88 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
89 BOOL    move_frozen_messages   = FALSE;
90 #endif
91
92 /* These variables are outside the #ifdef because it keeps the code less
93 cluttered in several places (e.g. during logging) if we can always refer to
94 them. Also, the tls_ variables are now always visible. */
95
96 BOOL    tls_active             = -1;
97 int     tls_bits               = 0;
98 BOOL    tls_certificate_verified = FALSE;
99 uschar *tls_cipher             = NULL;
100 BOOL    tls_on_connect         = FALSE;
101 uschar *tls_on_connect_ports   = NULL;
102 uschar *tls_peerdn             = NULL;
103
104 #ifdef SUPPORT_TLS
105 BOOL    gnutls_compat_mode     = FALSE;
106 uschar *gnutls_require_mac     = NULL;
107 uschar *gnutls_require_kx      = NULL;
108 uschar *gnutls_require_proto   = NULL;
109 uschar *openssl_options        = NULL;
110 const pcre *regex_STARTTLS     = NULL;
111 uschar *tls_advertise_hosts    = NULL;    /* This is deliberate */
112 uschar *tls_certificate        = NULL;
113 uschar *tls_crl                = NULL;
114 /* This default matches NSS DH_MAX_P_BITS value at current time (2012), because
115 that's the interop problem which has been observed: GnuTLS suggesting a higher
116 bit-count as "NORMAL" (2432) and Thunderbird dropping connection. */
117 int     tls_dh_max_bits        = 2236;
118 uschar *tls_dhparam            = NULL;
119 #if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS)
120 uschar *tls_ocsp_file          = NULL;
121 #endif
122 BOOL    tls_offered            = FALSE;
123 uschar *tls_privatekey         = NULL;
124 BOOL    tls_remember_esmtp     = FALSE;
125 uschar *tls_require_ciphers    = NULL;
126 uschar *tls_sni                = NULL;
127 uschar *tls_try_verify_hosts   = NULL;
128 uschar *tls_verify_certificates= NULL;
129 uschar *tls_verify_hosts       = NULL;
130 #endif
131
132
133 /* Input-reading functions for messages, so we can use special ones for
134 incoming TCP/IP. The defaults use stdin. We never need these for any
135 stand-alone tests. */
136
137 #ifndef STAND_ALONE
138 int (*receive_getc)(void)      = stdin_getc;
139 int (*receive_ungetc)(int)     = stdin_ungetc;
140 int (*receive_feof)(void)      = stdin_feof;
141 int (*receive_ferror)(void)    = stdin_ferror;
142 BOOL (*receive_smtp_buffered)(void) = NULL;   /* Only used for SMTP */
143 #endif
144
145
146 /* List of per-address expansion variables for clearing and saving/restoring
147 when verifying one address while routing/verifying another. We have to have
148 the size explicit, because it is referenced from more than one module. */
149
150 uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT] = {
151   &deliver_address_data,
152   &deliver_domain,
153   &deliver_domain_data,
154   &deliver_domain_orig,
155   &deliver_domain_parent,
156   &deliver_localpart,
157   &deliver_localpart_data,
158   &deliver_localpart_orig,
159   &deliver_localpart_parent,
160   &deliver_localpart_prefix,
161   &deliver_localpart_suffix,
162   (uschar **)(&deliver_recipients),
163   &deliver_host,
164   &deliver_home,
165   &address_file,
166   &address_pipe,
167   &self_hostname,
168   NULL };
169
170 int address_expansions_count = sizeof(address_expansions)/sizeof(uschar **);
171
172 /* General global variables */
173
174 header_line *acl_added_headers = NULL;
175 tree_node *acl_anchor          = NULL;
176
177 uschar *acl_not_smtp           = NULL;
178 #ifdef WITH_CONTENT_SCAN
179 uschar *acl_not_smtp_mime      = NULL;
180 #endif
181 uschar *acl_not_smtp_start     = NULL;
182
183 uschar *acl_smtp_auth          = NULL;
184 uschar *acl_smtp_connect       = NULL;
185 uschar *acl_smtp_data          = NULL;
186 #ifndef DISABLE_DKIM
187 uschar *acl_smtp_dkim          = NULL;
188 #endif
189 uschar *acl_smtp_etrn          = NULL;
190 uschar *acl_smtp_expn          = NULL;
191 uschar *acl_smtp_helo          = NULL;
192 uschar *acl_smtp_mail          = NULL;
193 uschar *acl_smtp_mailauth      = NULL;
194 #ifdef WITH_CONTENT_SCAN
195 uschar *acl_smtp_mime          = NULL;
196 #endif
197 uschar *acl_smtp_notquit       = NULL;
198 uschar *acl_smtp_predata       = NULL;
199 uschar *acl_smtp_quit          = NULL;
200 uschar *acl_smtp_rcpt          = NULL;
201 uschar *acl_smtp_starttls      = NULL;
202 uschar *acl_smtp_vrfy          = NULL;
203
204 BOOL    acl_temp_details       = FALSE;
205 tree_node *acl_var_c           = NULL;
206 tree_node *acl_var_m           = NULL;
207 uschar *acl_verify_message     = NULL;
208 string_item *acl_warn_logged   = NULL;
209
210 /* Names of SMTP places for use in ACL error messages, and corresponding SMTP
211 error codes - keep in step with definitions of ACL_WHERE_xxxx in macros.h. */
212
213 uschar *acl_wherenames[]       = { US"RCPT",
214                                    US"MAIL",
215                                    US"PREDATA",
216                                    US"MIME",
217                                    US"DKIM",
218                                    US"DATA",
219                                    US"non-SMTP",
220                                    US"AUTH",
221                                    US"connection",
222                                    US"ETRN",
223                                    US"EXPN",
224                                    US"EHLO or HELO",
225                                    US"MAILAUTH",
226                                    US"non-SMTP-start",
227                                    US"NOTQUIT",
228                                    US"QUIT",
229                                    US"STARTTLS",
230                                    US"VRFY"
231                                  };
232
233 uschar *acl_wherecodes[]       = { US"550",     /* RCPT */
234                                    US"550",     /* MAIL */
235                                    US"550",     /* PREDATA */
236                                    US"550",     /* MIME */
237                                    US"550",     /* DKIM */
238                                    US"550",     /* DATA */
239                                    US"0",       /* not SMTP; not relevant */
240                                    US"503",     /* AUTH */
241                                    US"550",     /* connect */
242                                    US"458",     /* ETRN */
243                                    US"550",     /* EXPN */
244                                    US"550",     /* HELO/EHLO */
245                                    US"0",       /* MAILAUTH; not relevant */
246                                    US"0",       /* not SMTP; not relevant */
247                                    US"0",       /* NOTQUIT; not relevant */
248                                    US"0",       /* QUIT; not relevant */
249                                    US"550",     /* STARTTLS */
250                                    US"252"      /* VRFY */
251                                  };
252
253 BOOL    active_local_from_check = FALSE;
254 BOOL    active_local_sender_retain = FALSE;
255 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
256 address_item  *addr_duplicate  = NULL;
257
258 address_item address_defaults = {
259   NULL,                 /* next */
260   NULL,                 /* parent */
261   NULL,                 /* first */
262   NULL,                 /* dupof */
263   NULL,                 /* start_router */
264   NULL,                 /* router */
265   NULL,                 /* transport */
266   NULL,                 /* host_list */
267   NULL,                 /* host_used */
268   NULL,                 /* fallback_hosts */
269   NULL,                 /* reply */
270   NULL,                 /* retries */
271   NULL,                 /* address */
272   NULL,                 /* unique */
273   NULL,                 /* cc_local_part */
274   NULL,                 /* lc_local_part */
275   NULL,                 /* local_part */
276   NULL,                 /* prefix */
277   NULL,                 /* suffix */
278   NULL,                 /* domain */
279   NULL,                 /* address_retry_key */
280   NULL,                 /* domain_retry_key */
281   NULL,                 /* current_dir */
282   NULL,                 /* home_dir */
283   NULL,                 /* message */
284   NULL,                 /* user_message */
285   NULL,                 /* onetime_parent */
286   NULL,                 /* pipe_expandn */
287   NULL,                 /* return_filename */
288   NULL,                 /* self_hostname */
289   NULL,                 /* shadow_message */
290   #ifdef SUPPORT_TLS
291   NULL,                 /* cipher */
292   NULL,                 /* peerdn */
293   #endif
294   (uid_t)(-1),          /* uid */
295   (gid_t)(-1),          /* gid */
296   0,                    /* flags */
297   { 0 },                /* domain_cache - any larger array should be zeroed */
298   { 0 },                /* localpart_cache - ditto */
299   -1,                   /* mode */
300   0,                    /* more_errno */
301   ERRNO_UNKNOWNERROR,   /* basic_errno */
302   0,                    /* child_count */
303   -1,                   /* return_file */
304   SPECIAL_NONE,         /* special_action */
305   DEFER,                /* transport_return */
306   {                     /* fields that are propagated to children */
307     NULL,               /* address_data */
308     NULL,               /* domain_data */
309     NULL,               /* localpart_data */
310     NULL,               /* errors_address */
311     NULL,               /* extra_headers */
312     NULL,               /* remove_headers */
313 #ifdef EXPERIMENTAL_SRS
314     NULL,               /* srs_sender */
315 #endif
316   }
317 };
318
319 uschar *address_file           = NULL;
320 uschar *address_pipe           = NULL;
321 BOOL    address_test_mode      = FALSE;
322 tree_node *addresslist_anchor  = NULL;
323 int     addresslist_count      = 0;
324 gid_t  *admin_groups           = NULL;
325 BOOL    admin_user             = FALSE;
326 BOOL    allow_auth_unadvertised= FALSE;
327 BOOL    allow_domain_literals  = FALSE;
328 BOOL    allow_mx_to_ip         = FALSE;
329 BOOL    allow_unqualified_recipient = TRUE;    /* For local messages */
330 BOOL    allow_unqualified_sender = TRUE;       /* Reset for SMTP */
331 BOOL    allow_utf8_domains     = FALSE;
332 uschar *authenticated_id       = NULL;
333 uschar *authenticated_sender   = NULL;
334 BOOL    authentication_failed  = FALSE;
335 auth_instance  *auths          = NULL;
336 uschar *auth_advertise_hosts   = US"*";
337 auth_instance auth_defaults    = {
338     NULL,                      /* chain pointer */
339     NULL,                      /* name */
340     NULL,                      /* info */
341     NULL,                      /* private options block pointer */
342     NULL,                      /* driver_name */
343     NULL,                      /* advertise_condition */
344     NULL,                      /* client_condition */
345     NULL,                      /* public_name */
346     NULL,                      /* set_id */
347     NULL,                      /* server_mail_auth_condition */
348     NULL,                      /* server_debug_string */
349     NULL,                      /* server_condition */
350     FALSE,                     /* client */
351     FALSE,                     /* server */
352     FALSE                      /* advertised */
353 };
354
355 uschar *auth_defer_msg         = US"reason not recorded";
356 uschar *auth_defer_user_msg    = US"";
357 uschar *auth_vars[AUTH_VARS];
358 int     auto_thaw              = 0;
359 #ifdef WITH_CONTENT_SCAN
360 BOOL    av_failed              = FALSE;
361 uschar *av_scanner             = US"sophie:/var/run/sophie";  /* AV scanner */
362 #endif
363
364 BOOL    background_daemon      = TRUE;
365
366 #if BASE_62 == 62
367 uschar *base62_chars=
368     US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
369 #else
370 uschar *base62_chars= US"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
371 #endif
372
373 uschar *bi_command             = NULL;
374 uschar *big_buffer             = NULL;
375 int     big_buffer_size        = BIG_BUFFER_SIZE;
376 #ifdef EXPERIMENTAL_BRIGHTMAIL
377 uschar *bmi_alt_location       = NULL;
378 uschar *bmi_base64_tracker_verdict = NULL;
379 uschar *bmi_base64_verdict     = NULL;
380 uschar *bmi_config_file        = US"/opt/brightmail/etc/brightmail.cfg";
381 int     bmi_deliver            = 1;
382 int     bmi_run                = 0;
383 uschar *bmi_verdicts           = NULL;
384 #endif
385 int     body_linecount         = 0;
386 int     body_zerocount         = 0;
387 uschar *bounce_message_file    = NULL;
388 uschar *bounce_message_text    = NULL;
389 uschar *bounce_recipient       = NULL;
390 BOOL    bounce_return_body     = TRUE;
391 BOOL    bounce_return_message  = TRUE;
392 int     bounce_return_size_limit = 100*1024;
393 uschar *bounce_sender_authentication = NULL;
394 int     bsmtp_transaction_linecount = 0;
395
396 int     callout_cache_domain_positive_expire = 7*24*60*60;
397 int     callout_cache_domain_negative_expire = 3*60*60;
398 int     callout_cache_positive_expire = 24*60*60;
399 int     callout_cache_negative_expire = 2*60*60;
400 uschar *callout_random_local_part = US"$primary_hostname-$tod_epoch-testing";
401 uschar *check_dns_names_pattern= US"(?i)^(?>(?(1)\\.|())[^\\W](?>[a-z0-9/_-]*[^\\W])?)+(\\.?)$";
402 int     check_log_inodes       = 0;
403 int     check_log_space        = 0;
404 BOOL    check_rfc2047_length   = TRUE;
405 int     check_spool_inodes     = 0;
406 int     check_spool_space      = 0;
407 int     clmacro_count          = 0;
408 uschar *clmacros[MAX_CLMACROS];
409 BOOL    config_changed         = FALSE;
410 FILE   *config_file            = NULL;
411 uschar *config_filename        = NULL;
412 int     config_lineno          = 0;
413 #ifdef CONFIGURE_GROUP
414 gid_t   config_gid             = CONFIGURE_GROUP;
415 #endif
416 uschar *config_main_filelist   = US CONFIGURE_FILE
417                          "\0<-----------Space to patch configure_filename->";
418 uschar *config_main_filename   = NULL;
419
420 #ifdef CONFIGURE_OWNER
421 uid_t   config_uid             = CONFIGURE_OWNER;
422 #endif
423
424 int     connection_max_messages= -1;
425 uschar *continue_hostname      = NULL;
426 uschar *continue_host_address  = NULL;
427 BOOL    continue_more          = FALSE;
428 int     continue_sequence      = 1;
429 uschar *continue_transport     = NULL;
430
431 uschar *csa_status             = NULL;
432 BOOL    cutthrough_delivery    = FALSE;
433 int     cutthrough_fd          = -1;
434
435 BOOL    daemon_listen          = FALSE;
436 uschar *daemon_smtp_port       = US"smtp";
437 int     daemon_startup_retries = 9;
438 int     daemon_startup_sleep   = 30;
439
440 #ifdef EXPERIMENTAL_DCC
441 BOOL    dcc_direct_add_header  = FALSE;
442 uschar *dcc_header             = NULL;
443 uschar *dcc_result             = NULL;
444 uschar *dccifd_address         = US"/usr/local/dcc/var/dccifd";
445 uschar *dccifd_options         = US"header";
446 #endif
447
448 BOOL    debug_daemon           = FALSE;
449 int     debug_fd               = -1;
450 FILE   *debug_file             = NULL;
451 bit_table debug_options[]      = {
452   { US"acl",            D_acl },
453   { US"all",            D_all },
454   { US"auth",           D_auth },
455   { US"deliver",        D_deliver },
456   { US"dns",            D_dns },
457   { US"dnsbl",          D_dnsbl },
458   { US"exec",           D_exec },
459   { US"expand",         D_expand },
460   { US"filter",         D_filter },
461   { US"hints_lookup",   D_hints_lookup },
462   { US"host_lookup",    D_host_lookup },
463   { US"ident",          D_ident },
464   { US"interface",      D_interface },
465   { US"lists",          D_lists },
466   { US"load",           D_load },
467   { US"local_scan",     D_local_scan },
468   { US"lookup",         D_lookup },
469   { US"memory",         D_memory },
470   { US"pid",            D_pid },
471   { US"process_info",   D_process_info },
472   { US"queue_run",      D_queue_run },
473   { US"receive",        D_receive },
474   { US"resolver",       D_resolver },
475   { US"retry",          D_retry },
476   { US"rewrite",        D_rewrite },
477   { US"route",          D_route },
478   { US"timestamp",      D_timestamp },
479   { US"tls",            D_tls },
480   { US"transport",      D_transport },
481   { US"uid",            D_uid },
482   { US"verify",         D_verify }
483 };
484 int     debug_options_count    = sizeof(debug_options)/sizeof(bit_table);
485 unsigned int debug_selector    = 0;
486 int     delay_warning[DELAY_WARNING_SIZE] = { DELAY_WARNING_SIZE, 1, 24*60*60 };
487 uschar *delay_warning_condition=
488   US"${if or {"
489             "{ !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }"
490             "{ match{$h_precedence:}{(?i)bulk|list|junk} }"
491             "{ match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }"
492             "} {no}{yes}}";
493 BOOL    delivery_date_remove   = TRUE;
494 uschar *deliver_address_data   = NULL;
495 int     deliver_datafile       = -1;
496 uschar *deliver_domain         = NULL;
497 uschar *deliver_domain_data    = NULL;
498 uschar *deliver_domain_orig    = NULL;
499 uschar *deliver_domain_parent  = NULL;
500 BOOL    deliver_drop_privilege = FALSE;
501 BOOL    deliver_firsttime      = FALSE;
502 BOOL    deliver_force          = FALSE;
503 BOOL    deliver_freeze         = FALSE;
504 int     deliver_frozen_at      = 0;
505 uschar *deliver_home           = NULL;
506 uschar *deliver_host           = NULL;
507 uschar *deliver_host_address   = NULL;
508 uschar *deliver_in_buffer      = NULL;
509 ino_t   deliver_inode          = 0;
510 uschar *deliver_localpart      = NULL;
511 uschar *deliver_localpart_data = NULL;
512 uschar *deliver_localpart_orig = NULL;
513 uschar *deliver_localpart_parent = NULL;
514 uschar *deliver_localpart_prefix = NULL;
515 uschar *deliver_localpart_suffix = NULL;
516 BOOL    deliver_force_thaw     = FALSE;
517 BOOL    deliver_manual_thaw    = FALSE;
518 uschar *deliver_out_buffer     = NULL;
519 int     deliver_queue_load_max = -1;
520 address_item  *deliver_recipients = NULL;
521 uschar *deliver_selectstring   = NULL;
522 BOOL    deliver_selectstring_regex = FALSE;
523 uschar *deliver_selectstring_sender = NULL;
524 BOOL    deliver_selectstring_sender_regex = FALSE;
525 #ifdef WITH_OLD_DEMIME
526 int     demime_errorlevel      = 0;
527 int     demime_ok              = 0;
528 uschar *demime_reason          = NULL;
529 #endif
530 BOOL    disable_callout_flush  = FALSE;
531 BOOL    disable_delay_flush    = FALSE;
532 #ifdef ENABLE_DISABLE_FSYNC
533 BOOL    disable_fsync          = FALSE;
534 #endif
535 BOOL    disable_ipv6           = FALSE;
536 BOOL    disable_logging        = FALSE;
537
538 #ifndef DISABLE_DKIM
539 uschar *dkim_cur_signer          = NULL;
540 uschar *dkim_signers             = NULL;
541 uschar *dkim_signing_domain      = NULL;
542 uschar *dkim_signing_selector    = NULL;
543 uschar *dkim_verify_signers      = US"$dkim_signers";
544 BOOL    dkim_collect_input       = FALSE;
545 BOOL    dkim_disable_verify      = FALSE;
546 #endif
547
548 uschar *dns_again_means_nonexist = NULL;
549 int     dns_csa_search_limit   = 5;
550 BOOL    dns_csa_use_reverse    = TRUE;
551 uschar *dns_ipv4_lookup        = NULL;
552 int     dns_retrans            = 0;
553 int     dns_retry              = 0;
554 int     dns_use_dnssec         = -1; /* <0 = not coerced */
555 int     dns_use_edns0          = -1; /* <0 = not coerced */
556 uschar *dnslist_domain         = NULL;
557 uschar *dnslist_matched        = NULL;
558 uschar *dnslist_text           = NULL;
559 uschar *dnslist_value          = NULL;
560 tree_node *domainlist_anchor   = NULL;
561 int     domainlist_count       = 0;
562 BOOL    dont_deliver           = FALSE;
563 BOOL    dot_ends               = TRUE;
564 BOOL    drop_cr                = FALSE;         /* No longer used */
565 uschar *dsn_from               = US DEFAULT_DSN_FROM;
566
567 BOOL    enable_dollar_recipients = FALSE;
568 BOOL    envelope_to_remove     = TRUE;
569 int     errno_quota            = ERRNO_QUOTA;
570 uschar *errors_copy            = NULL;
571 int     error_handling         = ERRORS_SENDER;
572 uschar *errors_reply_to        = NULL;
573 int     errors_sender_rc       = EXIT_FAILURE;
574
575 gid_t   exim_gid               = EXIM_GID;
576 BOOL    exim_gid_set           = TRUE;          /* This gid is always set */
577 uschar *exim_path              = US BIN_DIRECTORY "/exim"
578                         "\0<---------------Space to patch exim_path->";
579 uid_t   exim_uid               = EXIM_UID;
580 BOOL    exim_uid_set           = TRUE;          /* This uid is always set */
581 int     expand_forbid          = 0;
582 int     expand_nlength[EXPAND_MAXN+1];
583 int     expand_nmax            = -1;
584 uschar *expand_nstring[EXPAND_MAXN+1];
585 BOOL    expand_string_forcedfail = FALSE;
586 uschar *expand_string_message;
587 BOOL    extract_addresses_remove_arguments = TRUE;
588 uschar *extra_local_interfaces = NULL;
589
590 int     fake_response          = OK;
591 uschar *fake_response_text     = US"Your message has been rejected but is "
592                                    "being kept for evaluation.\nIf it was a "
593                                    "legitimate message, it may still be "
594                                    "delivered to the target recipient(s).";
595 int     filter_n[FILTER_VARIABLE_COUNT];
596 BOOL    filter_running         = FALSE;
597 int     filter_sn[FILTER_VARIABLE_COUNT];
598 int     filter_test            = FTEST_NONE;
599 uschar *filter_test_sfile      = NULL;
600 uschar *filter_test_ufile      = NULL;
601 uschar *filter_thisaddress     = NULL;
602 int     finduser_retries       = 0;
603 #ifdef WITH_OLD_DEMIME
604 uschar *found_extension        = NULL;
605 #endif
606 uid_t   fixed_never_users[]    = { FIXED_NEVER_USERS };
607 uschar *freeze_tell            = NULL;
608 uschar *freeze_tell_config     = NULL;
609 uschar *fudged_queue_times     = US"";
610
611 uschar *gecos_name             = NULL;
612 uschar *gecos_pattern          = NULL;
613 rewrite_rule  *global_rewrite_rules = NULL;
614
615 uschar *headers_charset        = US HEADERS_CHARSET;
616 int     header_insert_maxlen   = 64 * 1024;
617 header_line  *header_last      = NULL;
618 header_line  *header_list      = NULL;
619 int     header_maxsize         = HEADER_MAXSIZE;
620 int     header_line_maxsize    = 0;
621
622 header_name header_names[] = {
623   { US"bcc",            3, TRUE,  htype_bcc },
624   { US"cc",             2, TRUE,  htype_cc },
625   { US"date",           4, TRUE,  htype_date },
626   { US"delivery-date", 13, FALSE, htype_delivery_date },
627   { US"envelope-to",   11, FALSE, htype_envelope_to },
628   { US"from",           4, TRUE,  htype_from },
629   { US"message-id",    10, TRUE,  htype_id },
630   { US"received",       8, FALSE, htype_received },
631   { US"reply-to",       8, FALSE, htype_reply_to },
632   { US"return-path",   11, FALSE, htype_return_path },
633   { US"sender",         6, TRUE,  htype_sender },
634   { US"subject",        7, FALSE, htype_subject },
635   { US"to",             2, TRUE,  htype_to }
636 };
637
638 int header_names_size          = sizeof(header_names)/sizeof(header_name);
639
640 BOOL    header_rewritten       = FALSE;
641 uschar *helo_accept_junk_hosts = NULL;
642 uschar *helo_allow_chars       = US"";
643 uschar *helo_lookup_domains    = US"@ : @[]";
644 uschar *helo_try_verify_hosts  = NULL;
645 BOOL    helo_verified          = FALSE;
646 BOOL    helo_verify_failed     = FALSE;
647 uschar *helo_verify_hosts      = NULL;
648 const uschar *hex_digits       = CUS"0123456789abcdef";
649 uschar *hold_domains           = NULL;
650 BOOL    host_checking          = FALSE;
651 BOOL    host_checking_callout  = FALSE;
652 uschar *host_data              = NULL;
653 BOOL    host_find_failed_syntax= FALSE;
654 uschar *host_lookup            = NULL;
655 BOOL    host_lookup_deferred   = FALSE;
656 BOOL    host_lookup_failed     = FALSE;
657 uschar *host_lookup_order      = US"bydns:byaddr";
658 uschar *host_lookup_msg        = US"";
659 int     host_number            = 0;
660 uschar *host_number_string     = NULL;
661 uschar *host_reject_connection = NULL;
662 tree_node *hostlist_anchor     = NULL;
663 int     hostlist_count         = 0;
664 uschar *hosts_treat_as_local   = NULL;
665 uschar *hosts_connection_nolog = NULL;
666
667 int     ignore_bounce_errors_after = 10*7*24*60*60;  /* 10 weeks */
668 BOOL    ignore_fromline_local  = FALSE;
669 uschar *ignore_fromline_hosts  = NULL;
670 BOOL    inetd_wait_mode        = FALSE;
671 int     inetd_wait_timeout     = -1;
672 uschar *interface_address      = NULL;
673 int     interface_port         = -1;
674 BOOL    is_inetd               = FALSE;
675 uschar *iterate_item           = NULL;
676
677 int     journal_fd             = -1;
678
679 int     keep_malformed         = 4*24*60*60;    /* 4 days */
680
681 uschar *eldap_dn               = NULL;
682 int     load_average           = -2;
683 BOOL    local_error_message    = FALSE;
684 BOOL    local_from_check       = TRUE;
685 uschar *local_from_prefix      = NULL;
686 uschar *local_from_suffix      = NULL;
687
688 #if HAVE_IPV6
689 uschar *local_interfaces       = US"<; ::0 ; 0.0.0.0";
690 #else
691 uschar *local_interfaces       = US"0.0.0.0";
692 #endif
693
694 uschar *local_scan_data        = NULL;
695 int     local_scan_timeout     = 5*60;
696 BOOL    local_sender_retain    = FALSE;
697 gid_t   local_user_gid         = (gid_t)(-1);
698 uid_t   local_user_uid         = (uid_t)(-1);
699
700 tree_node *localpartlist_anchor= NULL;
701 int     localpartlist_count    = 0;
702 uschar *log_buffer             = NULL;
703 unsigned int log_extra_selector = LX_default;
704 uschar *log_file_path          = US LOG_FILE_PATH
705                            "\0<--------------Space to patch log_file_path->";
706
707 /* Those log options with L_xxx identifiers have values less than 0x800000 and
708 are the ones that get put into log_write_selector. They can be used in calls to
709 log_write() to test for the bit. The options with LX_xxx identifiers have
710 values greater than 0x80000000 and are put into log_extra_selector (without the
711 top bit). They are never used in calls to log_write(), but are tested
712 independently. This separation became necessary when the number of log
713 selectors was getting close to filling a 32-bit word. */
714
715 /* Note that this list must be in alphabetical order. */
716
717 bit_table log_options[]        = {
718   { US"acl_warn_skipped",             LX_acl_warn_skipped },
719   { US"address_rewrite",              L_address_rewrite },
720   { US"all",                          L_all },
721   { US"all_parents",                  L_all_parents },
722   { US"arguments",                    LX_arguments },
723   { US"connection_reject",            L_connection_reject },
724   { US"delay_delivery",               L_delay_delivery },
725   { US"deliver_time",                 LX_deliver_time },
726   { US"delivery_size",                LX_delivery_size },
727   { US"dnslist_defer",                L_dnslist_defer },
728   { US"etrn",                         L_etrn },
729   { US"host_lookup_failed",           L_host_lookup_failed },
730   { US"ident_timeout",                LX_ident_timeout },
731   { US"incoming_interface",           LX_incoming_interface },
732   { US"incoming_port",                LX_incoming_port },
733   { US"lost_incoming_connection",     L_lost_incoming_connection },
734   { US"outgoing_port",                LX_outgoing_port },
735   { US"pid",                          LX_pid },
736   { US"queue_run",                    L_queue_run },
737   { US"queue_time",                   LX_queue_time },
738   { US"queue_time_overall",           LX_queue_time_overall },
739   { US"received_recipients",          LX_received_recipients },
740   { US"received_sender",              LX_received_sender },
741   { US"rejected_header",              LX_rejected_header },
742   { US"rejected_headers",             LX_rejected_header },
743   { US"retry_defer",                  L_retry_defer },
744   { US"return_path_on_delivery",      LX_return_path_on_delivery },
745   { US"sender_on_delivery",           LX_sender_on_delivery },
746   { US"sender_verify_fail",           LX_sender_verify_fail },
747   { US"size_reject",                  L_size_reject },
748   { US"skip_delivery",                L_skip_delivery },
749   { US"smtp_confirmation",            LX_smtp_confirmation },
750   { US"smtp_connection",              L_smtp_connection },
751   { US"smtp_incomplete_transaction",  L_smtp_incomplete_transaction },
752   { US"smtp_no_mail",                 LX_smtp_no_mail },
753   { US"smtp_protocol_error",          L_smtp_protocol_error },
754   { US"smtp_syntax_error",            L_smtp_syntax_error },
755   { US"subject",                      LX_subject },
756   { US"tls_certificate_verified",     LX_tls_certificate_verified },
757   { US"tls_cipher",                   LX_tls_cipher },
758   { US"tls_peerdn",                   LX_tls_peerdn },
759   { US"tls_sni",                      LX_tls_sni },
760   { US"unknown_in_list",              LX_unknown_in_list }
761 };
762
763 int     log_options_count      = sizeof(log_options)/sizeof(bit_table);
764 int     log_reject_target      = 0;
765 uschar *log_selector_string    = NULL;
766 FILE   *log_stderr             = NULL;
767 BOOL    log_testing_mode       = FALSE;
768 BOOL    log_timezone           = FALSE;
769 unsigned int log_write_selector= L_default;
770 uschar *login_sender_address   = NULL;
771 int     lookup_open_max        = 25;
772 uschar *lookup_value           = NULL;
773
774 macro_item  *macros            = NULL;
775 uschar *mailstore_basename     = NULL;
776 #ifdef WITH_CONTENT_SCAN
777 uschar *malware_name           = NULL;  /* Virus Name */
778 #endif
779 int     max_received_linelength= 0;
780 int     max_username_length    = 0;
781 int     message_age            = 0;
782 uschar *message_body           = NULL;
783 uschar *message_body_end       = NULL;
784 BOOL    message_body_newlines  = FALSE;
785 int     message_body_size      = 0;
786 int     message_body_visible   = 500;
787 int     message_ended          = END_NOTSTARTED;
788 uschar *message_headers        = NULL;
789 uschar *message_id;
790 uschar *message_id_domain      = NULL;
791 uschar *message_id_text        = NULL;
792 struct timeval message_id_tv   = { 0, 0 };
793 uschar  message_id_option[MESSAGE_ID_LENGTH + 3];
794 uschar *message_id_external;
795 int     message_linecount      = 0;
796 BOOL    message_logs           = TRUE;
797 int     message_size           = 0;
798 uschar *message_size_limit     = US"50M";
799 uschar  message_subdir[2]      = { 0, 0 };
800 uschar *message_reference      = NULL;
801
802 /* MIME ACL expandables */
803 #ifdef WITH_CONTENT_SCAN
804 int     mime_anomaly_level     = 0;
805 const uschar *mime_anomaly_text      = NULL;
806 uschar *mime_boundary          = NULL;
807 uschar *mime_charset           = NULL;
808 uschar *mime_content_description = NULL;
809 uschar *mime_content_disposition = NULL;
810 uschar *mime_content_id        = NULL;
811 unsigned int mime_content_size = 0;
812 uschar *mime_content_transfer_encoding = NULL;
813 uschar *mime_content_type      = NULL;
814 uschar *mime_decoded_filename  = NULL;
815 uschar *mime_filename          = NULL;
816 int     mime_is_multipart      = 0;
817 int     mime_is_coverletter    = 0;
818 int     mime_is_rfc822         = 0;
819 int     mime_part_count        = -1;
820 #endif
821
822 BOOL    mua_wrapper            = FALSE;
823
824 uid_t  *never_users            = NULL;
825 #ifdef WITH_CONTENT_SCAN
826 BOOL    no_mbox_unspool        = FALSE;
827 #endif
828 BOOL    no_multiline_responses = FALSE;
829
830 uid_t   original_euid;
831 gid_t   originator_gid;
832 uschar *originator_login       = NULL;
833 uschar *originator_name        = NULL;
834 uid_t   originator_uid;
835 uschar *override_local_interfaces = NULL;
836 uschar *override_pid_file_path = NULL;
837
838 BOOL    parse_allow_group      = FALSE;
839 BOOL    parse_found_group      = FALSE;
840 uschar *percent_hack_domains   = NULL;
841 uschar *pid_file_path          = US PID_FILE_PATH
842                            "\0<--------------Space to patch pid_file_path->";
843 BOOL    pipelining_enable      = TRUE;
844 uschar *pipelining_advertise_hosts = US"*";
845 BOOL    preserve_message_logs  = FALSE;
846 uschar *primary_hostname       = NULL;
847 BOOL    print_topbitchars      = FALSE;
848 uschar  process_info[PROCESS_INFO_SIZE];
849 int     process_info_len       = 0;
850 uschar *process_log_path       = NULL;
851 BOOL    prod_requires_admin    = TRUE;
852 uschar *prvscheck_address      = NULL;
853 uschar *prvscheck_keynum       = NULL;
854 uschar *prvscheck_result       = NULL;
855
856
857 uschar *qualify_domain_recipient = NULL;
858 uschar *qualify_domain_sender  = NULL;
859 BOOL    queue_2stage           = FALSE;
860 uschar *queue_domains          = NULL;
861 int     queue_interval         = -1;
862 BOOL    queue_list_requires_admin = TRUE;
863 BOOL    queue_only             = FALSE;
864 uschar *queue_only_file        = NULL;
865 int     queue_only_load        = -1;
866 BOOL    queue_only_load_latch  = TRUE;
867 BOOL    queue_only_override    = TRUE;
868 BOOL    queue_only_policy      = FALSE;
869 BOOL    queue_run_first_delivery = FALSE;
870 BOOL    queue_run_force        = FALSE;
871 BOOL    queue_run_in_order     = FALSE;
872 BOOL    queue_run_local        = FALSE;
873 int     queue_run_max          = 5;
874 pid_t   queue_run_pid          = (pid_t)0;
875 int     queue_run_pipe         = -1;
876 BOOL    queue_running          = FALSE;
877 BOOL    queue_smtp             = FALSE;
878 uschar *queue_smtp_domains     = NULL;
879
880 unsigned int random_seed       = 0;
881 tree_node *ratelimiters_cmd    = NULL;
882 tree_node *ratelimiters_conn   = NULL;
883 tree_node *ratelimiters_mail   = NULL;
884 uschar *raw_active_hostname    = NULL;
885 uschar *raw_sender             = NULL;
886 uschar **raw_recipients        = NULL;
887 int     raw_recipients_count   = 0;
888
889 int     rcpt_count             = 0;
890 int     rcpt_fail_count        = 0;
891 int     rcpt_defer_count       = 0;
892 gid_t   real_gid;
893 uid_t   real_uid;
894 BOOL    really_exim            = TRUE;
895 BOOL    receive_call_bombout   = FALSE;
896 int     receive_linecount      = 0;
897 int     receive_messagecount   = 0;
898 int     receive_timeout        = 0;
899 int     received_count         = 0;
900 uschar *received_for           = NULL;
901
902 /*  This is the default text for Received headers generated by Exim. The
903 date  will be automatically added on the end. */
904
905 uschar *received_header_text   = US
906      "Received: "
907      "${if def:sender_rcvhost {from $sender_rcvhost\n\t}"
908      "{${if def:sender_ident {from ${quote_local_part:$sender_ident} }}"
909      "${if def:sender_helo_name {(helo=$sender_helo_name)\n\t}}}}"
910      "by $primary_hostname "
911      "${if def:received_protocol {with $received_protocol}} "
912      #ifdef SUPPORT_TLS
913      "${if def:tls_cipher {($tls_cipher)\n\t}}"
914      #endif
915      "(Exim $version_number)\n\t"
916      "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
917      "id $message_exim_id"
918      "${if def:received_for {\n\tfor $received_for}}"
919      "\0<---------------Space to patch received_header_text->";
920
921 int     received_headers_max   = 30;
922 uschar *received_protocol      = NULL;
923 int     received_time          = 0;
924 uschar *recipient_data         = NULL;
925 uschar *recipient_unqualified_hosts = NULL;
926 uschar *recipient_verify_failure = NULL;
927 int     recipients_count       = 0;
928 BOOL    recipients_discarded   = FALSE;
929 recipient_item  *recipients_list = NULL;
930 int     recipients_list_max    = 0;
931 int     recipients_max         = 0;
932 BOOL    recipients_max_reject  = FALSE;
933 const pcre *regex_AUTH         = NULL;
934 const pcre *regex_check_dns_names = NULL;
935 const pcre *regex_From         = NULL;
936 const pcre *regex_IGNOREQUOTA  = NULL;
937 const pcre *regex_PIPELINING   = NULL;
938 const pcre *regex_SIZE         = NULL;
939 const pcre *regex_smtp_code    = NULL;
940 const pcre *regex_ismsgid      = NULL;
941 #ifdef WHITELIST_D_MACROS
942 const pcre *regex_whitelisted_macro = NULL;
943 #endif
944 #ifdef WITH_CONTENT_SCAN
945 uschar *regex_match_string     = NULL;
946 #endif
947 int     remote_delivery_count  = 0;
948 int     remote_max_parallel    = 2;
949 uschar *remote_sort_domains    = NULL;
950 int     retry_data_expire      = 7*24*60*60;
951 int     retry_interval_max     = 24*60*60;
952 int     retry_maximum_timeout  = 0;        /* set from retry config */
953 retry_config  *retries         = NULL;
954 uschar *return_path            = NULL;
955 BOOL    return_path_remove     = TRUE;
956 int     rewrite_existflags     = 0;
957 uschar *rfc1413_hosts          = US"*";
958 int     rfc1413_query_timeout  = 5;
959 /* BOOL    rfc821_domains         = FALSE;  <<< on the way out */
960 uid_t   root_gid               = ROOT_GID;
961 uid_t   root_uid               = ROOT_UID;
962
963 router_instance  *routers  = NULL;
964 router_instance  router_defaults = {
965     NULL,                      /* chain pointer */
966     NULL,                      /* name */
967     NULL,                      /* info */
968     NULL,                      /* private options block pointer */
969     NULL,                      /* driver name */
970
971     NULL,                      /* address_data */
972 #ifdef EXPERIMENTAL_BRIGHTMAIL
973     NULL,                      /* bmi_rule */
974 #endif
975     NULL,                      /* cannot_route_message */
976     NULL,                      /* condition */
977     NULL,                      /* current_directory */
978     NULL,                      /* debug_string */
979     NULL,                      /* domains */
980     NULL,                      /* errors_to */
981     NULL,                      /* expand_gid */
982     NULL,                      /* expand_uid */
983     NULL,                      /* expand_more */
984     NULL,                      /* expand_unseen */
985     NULL,                      /* extra_headers */
986     NULL,                      /* fallback_hosts */
987     NULL,                      /* home_directory */
988     NULL,                      /* ignore_target_hosts */
989     NULL,                      /* local_parts */
990     NULL,                      /* pass_router_name */
991     NULL,                      /* prefix */
992     NULL,                      /* redirect_router_name */
993     NULL,                      /* remove_headers */
994     NULL,                      /* require_files */
995     NULL,                      /* router_home_directory */
996     US"freeze",                /* self */
997     NULL,                      /* senders */
998     NULL,                      /* suffix */
999     NULL,                      /* translate_ip_address */
1000     NULL,                      /* transport_name */
1001
1002     TRUE,                      /* address_test */
1003 #ifdef EXPERIMENTAL_BRIGHTMAIL
1004     FALSE,                     /* bmi_deliver_alternate */
1005     FALSE,                     /* bmi_deliver_default */
1006     FALSE,                     /* bmi_dont_deliver */
1007 #endif
1008     TRUE,                      /* expn */
1009     FALSE,                     /* caseful_local_part */
1010     FALSE,                     /* check_local_user */
1011     FALSE,                     /* disable_logging */
1012     FALSE,                     /* fail_verify_recipient */
1013     FALSE,                     /* fail_verify_sender */
1014     FALSE,                     /* gid_set */
1015     FALSE,                     /* initgroups */
1016     TRUE_UNSET,                /* log_as_local */
1017     TRUE,                      /* more */
1018     FALSE,                     /* pass_on_timeout */
1019     FALSE,                     /* prefix_optional */
1020     TRUE,                      /* repeat_use */
1021     TRUE_UNSET,                /* retry_use_local_part - fudge "unset" */
1022     FALSE,                     /* same_domain_copy_routing */
1023     FALSE,                     /* self_rewrite */
1024     FALSE,                     /* suffix_optional */
1025     FALSE,                     /* verify_only */
1026     TRUE,                      /* verify_recipient */
1027     TRUE,                      /* verify_sender */
1028     FALSE,                     /* uid_set */
1029     FALSE,                     /* unseen */
1030
1031     self_freeze,               /* self_code */
1032     (uid_t)(-1),               /* uid */
1033     (gid_t)(-1),               /* gid */
1034
1035     NULL,                      /* fallback_hostlist */
1036     NULL,                      /* transport instance */
1037     NULL,                      /* pass_router */
1038     NULL                       /* redirect_router */
1039 };
1040
1041 ip_address_item *running_interfaces = NULL;
1042 BOOL    running_in_test_harness = FALSE;
1043
1044 /* This is a weird one. The following string gets patched in the binary by the
1045 script that sets up a copy of Exim for running in the test harness. It seems
1046 that compilers are now clever, and share constant strings if they can.
1047 Elsewhere in Exim the string "<" is used. The compiler optimization seems to
1048 make use of the end of this string in order to save space. So the patching then
1049 wrecks this. We defeat this optimization by adding some additional characters
1050 onto the end of the string. */
1051
1052 uschar *running_status         = US">>>running<<<" "\0EXTRA";
1053
1054 int     runrc                  = 0;
1055
1056 uschar *search_error_message   = NULL;
1057 BOOL    search_find_defer      = FALSE;
1058 uschar *self_hostname          = NULL;
1059 uschar *sender_address         = NULL;
1060 unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32];
1061 uschar *sender_address_data    = NULL;
1062 BOOL    sender_address_forced  = FALSE;
1063 uschar *sender_address_unrewritten = NULL;
1064 uschar *sender_data            = NULL;
1065 unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32];
1066 uschar *sender_fullhost        = NULL;
1067 uschar *sender_helo_name       = NULL;
1068 uschar **sender_host_aliases   = &no_aliases;
1069 uschar *sender_host_address    = NULL;
1070 uschar *sender_host_authenticated = NULL;
1071 unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32];
1072 BOOL    sender_host_dnssec     = FALSE;
1073 uschar *sender_host_name       = NULL;
1074 int     sender_host_port       = 0;
1075 BOOL    sender_host_notsocket  = FALSE;
1076 BOOL    sender_host_unknown    = FALSE;
1077 uschar *sender_ident           = NULL;
1078 BOOL    sender_local           = FALSE;
1079 BOOL    sender_name_forced     = FALSE;
1080 uschar *sender_rate            = NULL;
1081 uschar *sender_rate_limit      = NULL;
1082 uschar *sender_rate_period     = NULL;
1083 uschar *sender_rcvhost         = NULL;
1084 BOOL    sender_set_untrusted   = FALSE;
1085 uschar *sender_unqualified_hosts = NULL;
1086 uschar *sender_verify_failure = NULL;
1087 address_item *sender_verified_list  = NULL;
1088 address_item *sender_verified_failed = NULL;
1089 int     sender_verified_rc     = -1;
1090 BOOL    sender_verified_responded = FALSE;
1091 uschar *sending_ip_address     = NULL;
1092 int     sending_port           = -1;
1093 SIGNAL_BOOL sigalrm_seen       = FALSE;
1094 uschar **sighup_argv           = NULL;
1095 int     smtp_accept_count      = 0;
1096 BOOL    smtp_accept_keepalive  = TRUE;
1097 int     smtp_accept_max        = 20;
1098 int     smtp_accept_max_nonmail= 10;
1099 uschar *smtp_accept_max_nonmail_hosts = US"*";
1100 int     smtp_accept_max_per_connection = 1000;
1101 uschar *smtp_accept_max_per_host = NULL;
1102 int     smtp_accept_queue      = 0;
1103 int     smtp_accept_queue_per_connection = 10;
1104 int     smtp_accept_reserve    = 0;
1105 uschar *smtp_active_hostname   = NULL;
1106 BOOL    smtp_authenticated     = FALSE;
1107 uschar *smtp_banner            = US"$smtp_active_hostname ESMTP "
1108                              "Exim $version_number $tod_full"
1109                              "\0<---------------Space to patch smtp_banner->";
1110 BOOL    smtp_batched_input     = FALSE;
1111 BOOL    smtp_check_spool_space = TRUE;
1112 int     smtp_ch_index          = 0;
1113 uschar *smtp_cmd_argument      = NULL;
1114 uschar *smtp_cmd_buffer        = NULL;
1115 time_t  smtp_connection_start  = 0;
1116 uschar  smtp_connection_had[SMTP_HBUFF_SIZE];
1117 int     smtp_connect_backlog   = 20;
1118 double  smtp_delay_mail        = 0.0;
1119 double  smtp_delay_rcpt        = 0.0;
1120 BOOL    smtp_enforce_sync      = TRUE;
1121 FILE   *smtp_in                = NULL;
1122 BOOL    smtp_input             = FALSE;
1123 int     smtp_load_reserve      = -1;
1124 int     smtp_mailcmd_count     = 0;
1125 FILE   *smtp_out               = NULL;
1126 uschar *smtp_etrn_command      = NULL;
1127 BOOL    smtp_etrn_serialize    = TRUE;
1128 int     smtp_max_synprot_errors= 3;
1129 int     smtp_max_unknown_commands = 3;
1130 uschar *smtp_notquit_reason    = NULL;
1131 uschar *smtp_ratelimit_hosts   = NULL;
1132 uschar *smtp_ratelimit_mail    = NULL;
1133 uschar *smtp_ratelimit_rcpt    = NULL;
1134 uschar *smtp_read_error        = US"";
1135 int     smtp_receive_timeout   = 5*60;
1136 uschar *smtp_reserve_hosts     = NULL;
1137 BOOL    smtp_return_error_details = FALSE;
1138 int     smtp_rlm_base          = 0;
1139 double  smtp_rlm_factor        = 0.0;
1140 int     smtp_rlm_limit         = 0;
1141 int     smtp_rlm_threshold     = INT_MAX;
1142 int     smtp_rlr_base          = 0;
1143 double  smtp_rlr_factor        = 0.0;
1144 int     smtp_rlr_limit         = 0;
1145 int     smtp_rlr_threshold     = INT_MAX;
1146 BOOL    smtp_use_pipelining    = FALSE;
1147 BOOL    smtp_use_size          = FALSE;
1148
1149 #ifdef WITH_CONTENT_SCAN
1150 uschar *spamd_address          = US"127.0.0.1 783";
1151 uschar *spam_bar               = NULL;
1152 uschar *spam_report            = NULL;
1153 uschar *spam_score             = NULL;
1154 uschar *spam_score_int         = NULL;
1155 #endif
1156 #ifdef EXPERIMENTAL_SPF
1157 uschar *spf_guess              = US"v=spf1 a/24 mx/24 ptr ?all";
1158 uschar *spf_header_comment     = NULL;
1159 uschar *spf_received           = NULL;
1160 uschar *spf_result             = NULL;
1161 uschar *spf_smtp_comment       = NULL;
1162 #endif
1163
1164 BOOL    split_spool_directory  = FALSE;
1165 uschar *spool_directory        = US SPOOL_DIRECTORY
1166                            "\0<--------------Space to patch spool_directory->";
1167 #ifdef EXPERIMENTAL_SRS
1168 uschar *srs_config             = NULL;
1169 uschar *srs_db_address         = NULL;
1170 uschar *srs_db_key             = NULL;
1171 int     srs_hashlength         = 6;
1172 int     srs_hashmin            = -1;
1173 int     srs_maxage             = 31;
1174 uschar *srs_orig_recipient     = NULL;
1175 uschar *srs_orig_sender        = NULL;
1176 uschar *srs_recipient          = NULL;
1177 uschar *srs_secrets            = NULL;
1178 uschar *srs_status             = NULL;
1179 BOOL    srs_usehash            = TRUE;
1180 BOOL    srs_usetimestamp       = TRUE;
1181 #endif
1182 BOOL    strict_acl_vars        = FALSE;
1183 int     string_datestamp_offset= -1;
1184 int     string_datestamp_length= 0;
1185 int     string_datestamp_type  = -1;
1186 BOOL    strip_excess_angle_brackets = FALSE;
1187 BOOL    strip_trailing_dot     = FALSE;
1188 uschar *submission_domain      = NULL;
1189 BOOL    submission_mode        = FALSE;
1190 uschar *submission_name        = NULL;
1191 BOOL    suppress_local_fixups  = FALSE;
1192 BOOL    suppress_local_fixups_default = FALSE;
1193 BOOL    synchronous_delivery   = FALSE;
1194 BOOL    syslog_duplication     = TRUE;
1195 int     syslog_facility        = LOG_MAIL;
1196 uschar *syslog_processname     = US"exim";
1197 BOOL    syslog_timestamp       = TRUE;
1198 uschar *system_filter          = NULL;
1199
1200 uschar *system_filter_directory_transport = NULL;
1201 uschar *system_filter_file_transport = NULL;
1202 uschar *system_filter_pipe_transport = NULL;
1203 uschar *system_filter_reply_transport = NULL;
1204
1205 gid_t   system_filter_gid      = 0;
1206 BOOL    system_filter_gid_set  = FALSE;
1207 uid_t   system_filter_uid      = (uid_t)-1;
1208 BOOL    system_filter_uid_set  = FALSE;
1209 BOOL    system_filtering       = FALSE;
1210
1211 BOOL    tcp_nodelay            = TRUE;
1212 #ifdef USE_TCP_WRAPPERS
1213 uschar *tcp_wrappers_daemon_name = US TCP_WRAPPERS_DAEMON_NAME;
1214 #endif
1215 int     test_harness_load_avg  = 0;
1216 int     thismessage_size_limit = 0;
1217 int     timeout_frozen_after   = 0;
1218 BOOL    timestamps_utc         = FALSE;
1219
1220 transport_instance  *transports = NULL;
1221
1222 transport_instance  transport_defaults = {
1223     NULL,                     /* chain pointer */
1224     NULL,                     /* name */
1225     NULL,                     /* info */
1226     NULL,                     /* private options block pointer */
1227     NULL,                     /* driver name */
1228     NULL,                     /* setup entry point */
1229     1,                        /* batch_max */
1230     NULL,                     /* batch_id */
1231     NULL,                     /* home_dir */
1232     NULL,                     /* current_dir */
1233     TRUE,                     /* multi-domain */
1234     FALSE,                    /* overrides_hosts */
1235     100,                      /* max_addresses */
1236     500,                      /* connection_max_messages */
1237     FALSE,                    /* deliver_as_creator */
1238     FALSE,                    /* disable_logging */
1239     FALSE,                    /* initgroups */
1240     FALSE,                    /* uid_set */
1241     FALSE,                    /* gid_set */
1242     (uid_t)(-1),              /* uid */
1243     (gid_t)(-1),              /* gid */
1244     NULL,                     /* expand_uid */
1245     NULL,                     /* expand_gid */
1246     NULL,                     /* warn_message */
1247     NULL,                     /* shadow */
1248     NULL,                     /* shadow_condition */
1249     NULL,                     /* filter_command */
1250     NULL,                     /* add_headers */
1251     NULL,                     /* remove_headers */
1252     NULL,                     /* return_path */
1253     NULL,                     /* debug_string */
1254     NULL,                     /* message_size_limit */
1255     NULL,                     /* headers_rewrite */
1256     NULL,                     /* rewrite_rules */
1257     0,                        /* rewrite_existflags */
1258     300,                      /* filter_timeout */
1259     FALSE,                    /* body_only */
1260     FALSE,                    /* delivery_date_add */
1261     FALSE,                    /* envelope_to_add */
1262     FALSE,                    /* headers_only */
1263     FALSE,                    /* rcpt_include_affixes */
1264     FALSE,                    /* return_path_add */
1265     FALSE,                    /* return_output */
1266     FALSE,                    /* return_fail_output */
1267     FALSE,                    /* log_output */
1268     FALSE,                    /* log_fail_output */
1269     FALSE,                    /* log_defer_output */
1270     TRUE_UNSET                /* retry_use_local_part: BOOL, but set neither
1271                                  1 nor 0 so can detect unset */
1272 };
1273
1274 int     transport_count;
1275 int     transport_newlines;
1276 uschar **transport_filter_argv  = NULL;
1277 int     transport_filter_timeout;
1278 BOOL    transport_filter_timed_out = FALSE;
1279 int     transport_write_timeout= 0;
1280
1281 tree_node  *tree_dns_fails     = NULL;
1282 tree_node  *tree_duplicates    = NULL;
1283 tree_node  *tree_nonrecipients = NULL;
1284 tree_node  *tree_unusable      = NULL;
1285
1286 BOOL    trusted_caller         = FALSE;
1287 BOOL    trusted_config         = TRUE;
1288 gid_t  *trusted_groups         = NULL;
1289 uid_t  *trusted_users          = NULL;
1290 uschar *timezone_string        = US TIMEZONE_DEFAULT;
1291
1292 uschar *unknown_login          = NULL;
1293 uschar *unknown_username       = NULL;
1294 uschar *untrusted_set_sender   = NULL;
1295
1296 /*  A regex for matching a "From_" line in an incoming message, in the form
1297
1298     From ph10 Fri Jan  5 12:35 GMT 1996
1299
1300 which  the "mail" commands send to the MTA (undocumented, of course), or in
1301 the  form
1302
1303     From ph10 Fri, 7 Jan 97 14:00:00 GMT
1304
1305 which  is apparently used by some UUCPs, despite it not being in RFC 976.
1306 Because  of variations in time formats, just match up to the minutes. That
1307 should  be sufficient. Examples have been seen of time fields like 12:1:03,
1308 so  just require one digit for hours and minutes. The weekday is also absent
1309 in  some forms. */
1310
1311 uschar *uucp_from_pattern      = US
1312    "^From\\s+(\\S+)\\s+(?:[a-zA-Z]{3},?\\s+)?"    /* Common start */
1313    "(?:"                                          /* Non-extracting bracket */
1314    "[a-zA-Z]{3}\\s+\\d?\\d|"                      /* First form */
1315    "\\d?\\d\\s+[a-zA-Z]{3}\\s+\\d\\d(?:\\d\\d)?"  /* Second form */
1316    ")"                                            /* End alternation */
1317    "\\s+\\d\\d?:\\d\\d?";                         /* Start of time */
1318
1319 uschar *uucp_from_sender       = US"$1";
1320
1321 uschar *warn_message_file      = NULL;
1322 uschar *warnmsg_delay          = NULL;
1323 uschar *warnmsg_recipients     = NULL;
1324 BOOL    write_rejectlog        = TRUE;
1325
1326 uschar *version_copyright      =
1327  US"Copyright (c) University of Cambridge, 1995 - 2012\n"
1328    "(c) The Exim Maintainers and contributors in ACKNOWLEDGMENTS file, 2007 - 2012";
1329 uschar *version_date           = US"?";
1330 uschar *version_cnumber        = US"????";
1331 uschar *version_string         = US"?";
1332
1333 int     warning_count          = 0;
1334
1335 /*  End of globals.c */