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1/*************************************************
2* Exim - an Internet mail transport agent *
3*************************************************/
4
5/* Copyright (c) University of Cambridge 1995 - 2016 */
6/* See the file NOTICE for conditions of use and distribution. */
7
8
9/* Prototypes for functions that appear in various modules. Gathered together
10to avoid having a lot of tiddly little headers with only a couple of lines in
11them. However, some functions that are used (or not used) by utility programs
12are in in fact in separate headers. */
13
14
15#ifdef EXIM_PERL
16extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
17 uschar **);
18extern void cleanup_perl(void);
19extern uschar *init_perl(uschar *);
20#endif
21
22
23#ifdef SUPPORT_TLS
24extern const char *
25 std_dh_prime_default(void);
26extern const char *
27 std_dh_prime_named(const uschar *);
28
29extern uschar * tls_cert_crl_uri(void *, uschar * mod);
30extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
31extern uschar * tls_cert_issuer(void *, uschar * mod);
32extern uschar * tls_cert_not_before(void *, uschar * mod);
33extern uschar * tls_cert_not_after(void *, uschar * mod);
34extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
35extern uschar * tls_cert_serial_number(void *, uschar * mod);
36extern uschar * tls_cert_signature(void *, uschar * mod);
37extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
38extern uschar * tls_cert_subject(void *, uschar * mod);
39extern uschar * tls_cert_subject_altname(void *, uschar * mod);
40extern uschar * tls_cert_version(void *, uschar * mod);
41
42extern uschar * tls_cert_der_b64(void * cert);
43extern uschar * tls_cert_fprt_md5(void *);
44extern uschar * tls_cert_fprt_sha1(void *);
45extern uschar * tls_cert_fprt_sha256(void *);
46
47extern int tls_client_start(int, host_item *, address_item *,
48 transport_instance *
49# ifdef EXPERIMENTAL_DANE
50 , dns_answer *
51# endif
52 );
53extern void tls_close(BOOL, BOOL);
54extern int tls_export_cert(uschar *, size_t, void *);
55extern int tls_feof(void);
56extern int tls_ferror(void);
57extern void tls_free_cert(void **);
58extern int tls_getc(void);
59extern int tls_import_cert(const uschar *, void **);
60extern int tls_read(BOOL, uschar *, size_t);
61extern int tls_server_start(const uschar *);
62extern BOOL tls_smtp_buffered(void);
63extern int tls_ungetc(int);
64extern int tls_write(BOOL, const uschar *, size_t);
65extern uschar *tls_validate_require_cipher(void);
66extern void tls_version_report(FILE *);
67# ifndef USE_GNUTLS
68extern BOOL tls_openssl_options_parse(uschar *, long *);
69# endif
70extern uschar * tls_field_from_dn(uschar *, const uschar *);
71extern BOOL tls_is_name_for_cert(const uschar *, void *);
72
73# ifdef EXPERIMENTAL_DANE
74extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
75# endif
76
77#endif /*SUPPORT_TLS*/
78
79
80/* Everything else... */
81
82extern acl_block *acl_read(uschar *(*)(void), uschar **);
83extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
84extern int acl_eval(int, uschar *, uschar **, uschar **);
85
86extern tree_node *acl_var_create(uschar *);
87extern void acl_var_write(uschar *, uschar *, void *);
88extern int auth_call_pam(const uschar *, uschar **);
89extern int auth_call_pwcheck(uschar *, uschar **);
90extern int auth_call_radius(const uschar *, uschar **);
91extern int auth_call_saslauthd(const uschar *, const uschar *,
92 const uschar *, const uschar *, uschar **);
93extern int auth_check_serv_cond(auth_instance *);
94extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
95
96extern int auth_get_data(uschar **, uschar *, int);
97extern int auth_get_no64_data(uschar **, uschar *);
98extern uschar *auth_xtextencode(uschar *, int);
99extern int auth_xtextdecode(uschar *, uschar **);
100
101extern uschar *b64encode(uschar *, int);
102extern int b64decode(uschar *, uschar **);
103extern void bits_clear(unsigned int *, size_t, int *);
104extern void bits_set(unsigned int *, size_t, int *);
105
106extern void cancel_cutthrough_connection(const char *);
107extern int check_host(void *, const uschar *, const uschar **, uschar **);
108extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
109extern pid_t child_open_uid(const uschar **, const uschar **, int,
110 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
111extern BOOL cleanup_environment(void);
112extern uschar *cutthrough_finaldot(void);
113extern BOOL cutthrough_flush_send(void);
114extern BOOL cutthrough_headers_send(void);
115extern BOOL cutthrough_predata(void);
116extern BOOL cutthrough_puts(uschar *, int);
117extern BOOL cutthrough_put_nl(void);
118
119extern void daemon_go(void);
120
121#ifdef EXPERIMENTAL_DCC
122extern int dcc_process(uschar **);
123#endif
124
125extern void debug_logging_activate(uschar *, uschar *);
126extern void debug_logging_stop(void);
127extern void debug_print_argv(const uschar **);
128extern void debug_print_ids(uschar *);
129extern void debug_print_string(uschar *);
130extern void debug_print_tree(tree_node *);
131extern void debug_vprintf(const char *, va_list);
132extern void decode_bits(unsigned int *, size_t, int *,
133 uschar *, bit_table *, int, uschar *, int);
134extern address_item *deliver_make_addr(uschar *, BOOL);
135extern void deliver_init(void);
136extern void delivery_log(int, address_item *, int, uschar *);
137extern int deliver_message(uschar *, BOOL, BOOL);
138extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
139extern void deliver_set_expansions(address_item *);
140extern int deliver_split_address(address_item *);
141extern void deliver_succeeded(address_item *);
142
143extern uschar *deliver_get_sender_address (uschar *id);
144
145extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
146#ifndef DISABLE_DKIM
147extern BOOL dkim_transport_write_message(address_item *, int, int,
148 uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
149 int, struct ob_dkim *);
150#endif
151extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
152extern int dns_basic_lookup(dns_answer *, const uschar *, int);
153extern void dns_build_reverse(const uschar *, uschar *);
154extern void dns_init(BOOL, BOOL, BOOL);
155extern BOOL dns_is_aa(const dns_answer *);
156extern BOOL dns_is_secure(const dns_answer *);
157extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
158extern void dns_pattern_init(void);
159extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
160extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
161extern uschar *dns_text_type(int);
162extern void dscp_list_to_stream(FILE *);
163extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
164
165extern void enq_end(uschar *);
166extern BOOL enq_start(uschar *, unsigned);
167#ifndef DISABLE_EVENT
168extern uschar *event_raise(uschar *, const uschar *, uschar *);
169extern void msg_event_raise(const uschar *, const address_item *);
170#endif
171extern uschar ehlo_response(uschar *, size_t, uschar);
172extern const uschar * exim_errstr(int);
173extern void exim_exit(int);
174extern void exim_nullstd(void);
175extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
176extern int exim_tvcmp(struct timeval *, struct timeval *);
177extern void exim_wait_tick(struct timeval *, int);
178extern int exp_bool(address_item *addr,
179 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
180 uschar *svalue, BOOL *rvalue);
181extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
182extern uschar *expand_string(uschar *); /* public, cannot make const */
183extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
184extern uschar *expand_hide_passwords(uschar * );
185extern uschar *expand_string_copy(const uschar *);
186extern int_eximarith_t expand_string_integer(uschar *, BOOL);
187extern void modify_variable(uschar *, void *);
188
189extern BOOL fd_ready(int, int);
190
191extern int filter_interpret(uschar *, int, address_item **, uschar **);
192extern BOOL filter_personal(string_item *, BOOL);
193extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
194extern BOOL filter_system_interpret(address_item **, uschar **);
195
196extern uschar * fn_hdrs_added(void);
197
198extern void header_add(int, const char *, ...);
199extern int header_checkname(header_line *, BOOL);
200extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
201extern int host_address_extract_port(uschar *);
202extern uschar *host_and_ident(BOOL);
203extern int host_aton(const uschar *, int *);
204extern void host_build_hostlist(host_item **, const uschar *, BOOL);
205extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
206extern void host_build_log_info(void);
207extern void host_build_sender_fullhost(void);
208extern BOOL host_find_byname(host_item *, const uschar *, int,
209 const uschar **, BOOL);
210extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
211 uschar *, const dnssec_domains *, const uschar **, BOOL *);
212extern ip_address_item *host_find_interfaces(void);
213extern BOOL host_is_in_net(const uschar *, const uschar *, int);
214extern BOOL host_is_tls_on_connect_port(int);
215extern int host_item_get_port(host_item *);
216extern void host_mask(int, int *, int);
217extern int host_name_lookup(void);
218extern int host_nmtoa(int, int *, int, uschar *, int);
219extern uschar *host_ntoa(int, const void *, uschar *, int *);
220extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
221
222extern uschar *imap_utf7_encode(uschar *, const uschar *,
223 uschar, uschar *, uschar **);
224
225extern void invert_address(uschar *, uschar *);
226extern int ip_addr(void *, int, const uschar *, int);
227extern int ip_bind(int, int, uschar *, int);
228extern int ip_connect(int, int, const uschar *, int, int);
229extern int ip_connectedsocket(int, const uschar *, int, int,
230 int, host_item *, uschar **);
231extern int ip_get_address_family(int);
232extern void ip_keepalive(int, const uschar *, BOOL);
233extern int ip_recv(int, uschar *, int, int);
234extern int ip_socket(int, int);
235
236extern int ip_tcpsocket(const uschar *, uschar **, int);
237extern int ip_unixsocket(const uschar *, uschar **);
238extern int ip_streamsocket(const uschar *, uschar **, int);
239
240extern int ipv6_nmtoa(int *, uschar *);
241
242extern uschar *local_part_quote(uschar *);
243extern int log_create(uschar *);
244extern int log_create_as_exim(uschar *);
245extern void log_close_all(void);
246
247#ifdef WITH_CONTENT_SCAN
248extern int malware(const uschar *, int);
249extern int malware_in_file(uschar *);
250extern void malware_init(void);
251#endif
252extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
253 unsigned int *, int, int, const uschar **);
254extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
255 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
256 const uschar *, const uschar **);
257extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
258 unsigned int *, int, BOOL, const uschar **);
259extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
260 const uschar **);
261extern void md5_end(md5 *, const uschar *, int, uschar *);
262extern void md5_mid(md5 *, const uschar *);
263extern void md5_start(md5 *);
264extern void millisleep(int);
265#ifdef WITH_CONTENT_SCAN
266struct mime_boundary_context;
267extern int mime_acl_check(uschar *acl, FILE *f,
268 struct mime_boundary_context *, uschar **, uschar **);
269extern int mime_decode(const uschar **);
270extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
271extern int mime_regex(const uschar **);
272extern void mime_set_anomaly(int);
273#endif
274extern uschar *moan_check_errorcopy(uschar *);
275extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
276 BOOL, uschar *);
277extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
278extern void moan_tell_someone(uschar *, address_item *,
279 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
280extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
281extern void moan_write_from(FILE *);
282extern FILE *modefopen(const uschar *, const char *, mode_t);
283
284extern int open_cutthrough_connection( address_item * addr );
285
286extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
287 BOOL);
288extern int parse_forward_list(uschar *, int, address_item **, uschar **,
289 const uschar *, uschar *, error_block **);
290extern uschar *parse_find_address_end(uschar *, BOOL);
291extern uschar *parse_find_at(uschar *);
292extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
293extern uschar *parse_message_id(uschar *, uschar **, uschar **);
294extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
295extern uschar *parse_date_time(uschar *str, time_t *t);
296extern int vaguely_random_number(int);
297#ifdef SUPPORT_TLS
298extern int vaguely_random_number_fallback(int);
299#endif
300
301extern BOOL queue_action(uschar *, int, uschar **, int, int);
302extern void queue_check_only(void);
303extern void queue_list(int, uschar **, int);
304extern void queue_count(void);
305extern void queue_run(uschar *, uschar *, BOOL);
306
307extern int random_number(int);
308extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
309 uschar *, uschar *, uschar *, ugid_block *, address_item **,
310 uschar **, error_block **, int *, uschar *);
311extern int rda_is_filter(const uschar *);
312extern BOOL readconf_depends(driver_instance *, uschar *);
313extern void readconf_driver_init(uschar *, driver_instance **,
314 driver_info *, int, void *, int, optionlist *, int);
315extern uschar *readconf_find_option(void *);
316extern void readconf_main(BOOL);
317extern void readconf_print(uschar *, uschar *, BOOL no_labels);
318extern uschar *readconf_printtime(int);
319extern uschar *readconf_readname(uschar *, int, uschar *);
320extern int readconf_readtime(const uschar *, int, BOOL);
321extern void readconf_rest(void);
322extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
323extern void readconf_save_config(const uschar *);
324extern void read_message_body(BOOL);
325extern void receive_bomb_out(uschar *, uschar *);
326extern BOOL receive_check_fs(int);
327extern BOOL receive_check_set_sender(uschar *);
328extern BOOL receive_msg(BOOL);
329extern int receive_statvfs(BOOL, int *);
330extern void receive_swallow_smtp(void);
331#ifdef WITH_CONTENT_SCAN
332extern int regex(const uschar **);
333#endif
334extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
335extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
336extern void retry_add_item(address_item *, uschar *, int);
337extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
338 uschar **, uschar **);
339extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
340extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
341 dbdata_retry *, time_t);
342extern void retry_update(address_item **, address_item **, address_item **);
343extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
344extern uschar *rewrite_address_qualify(uschar *, BOOL);
345extern header_line *rewrite_header(header_line *,
346 const uschar *, const uschar *,
347 rewrite_rule *, int, BOOL);
348extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
349 rewrite_rule *);
350extern void rewrite_test(uschar *);
351extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
352 uschar **);
353extern int route_address(address_item *, address_item **, address_item **,
354 address_item **, address_item **, int);
355extern int route_check_prefix(const uschar *, const uschar *);
356extern int route_check_suffix(const uschar *, const uschar *);
357extern BOOL route_findgroup(uschar *, gid_t *);
358extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
359extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
360 uschar **);
361extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
362 struct passwd **, uid_t *, uschar **);
363extern void route_init(void);
364extern void route_tidyup(void);
365
366extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
367 int, int *);
368extern int search_findtype(const uschar *, int);
369extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
370 int *);
371extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
372extern void search_tidyup(void);
373extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
374extern void sha1_end(hctx *, const uschar *, int, uschar *);
375extern void sha1_mid(hctx *, const uschar *);
376extern void sha1_start(hctx *);
377extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
378 uschar *, address_item **, uschar **);
379extern void sigalrm_handler(int);
380extern BOOL smtp_buffered(void);
381extern void smtp_closedown(uschar *);
382extern int smtp_connect(host_item *, int, int, uschar *, int,
383 transport_instance *);
384extern int smtp_sock_connect(host_item *, int, int, uschar *,
385 transport_instance * tb, int);
386extern int smtp_feof(void);
387extern int smtp_ferror(void);
388extern uschar *smtp_get_connection_info(void);
389extern BOOL smtp_get_interface(uschar *, int, address_item *,
390 uschar **, uschar *);
391extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
392extern int smtp_getc(void);
393extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
394extern void smtp_log_no_mail(void);
395extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
396extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
397extern void smtp_respond(uschar *, int, BOOL, uschar *);
398extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
399extern void smtp_send_prohibition_message(int, uschar *);
400extern int smtp_setup_msg(void);
401extern BOOL smtp_start_session(void);
402extern int smtp_ungetc(int);
403extern BOOL smtp_verify_helo(void);
404extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
405#ifdef WITH_CONTENT_SCAN
406extern int spam(const uschar **);
407extern FILE *spool_mbox(unsigned long *, const uschar *);
408#endif
409extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
410extern uschar *spool_fname(const uschar *, uschar *, uschar *, uschar *);
411extern uschar *spool_sname(const uschar *, uschar *);
412extern int spool_open_datafile(uschar *);
413extern int spool_open_temp(uschar *);
414extern int spool_read_header(uschar *, BOOL, BOOL);
415extern int spool_write_header(uschar *, int, uschar **);
416extern int stdin_getc(void);
417extern int stdin_feof(void);
418extern int stdin_ferror(void);
419extern int stdin_ungetc(int);
420extern uschar *string_append(uschar *, int *, int *, int, ...);
421extern uschar *string_append_listele(uschar *, uschar, const uschar *);
422extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
423extern uschar *string_base62(unsigned long int);
424extern uschar *string_cat(uschar *, int *, int *, const uschar *);
425extern uschar *string_catn(uschar *, int *, int *, const uschar *, int);
426extern int string_compare_by_pointer(const void *, const void *);
427extern uschar *string_copy_dnsdomain(uschar *);
428extern uschar *string_copy_malloc(const uschar *);
429extern uschar *string_copylc(const uschar *);
430extern uschar *string_copynlc(uschar *, int);
431extern uschar *string_dequote(const uschar **);
432extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
433extern uschar *string_format_size(int, uschar *);
434extern int string_interpret_escape(const uschar **);
435extern int string_is_ip_address(const uschar *, int *);
436#ifdef SUPPORT_I18N
437extern BOOL string_is_utf8(const uschar *);
438#endif
439extern uschar *string_log_address(address_item *, BOOL, BOOL);
440extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
441extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
442extern const uschar *string_printing2(const uschar *, BOOL);
443extern uschar *string_split_message(uschar *);
444extern uschar *string_unprinting(uschar *);
445#ifdef SUPPORT_I18N
446extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
447extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
448extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
449extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
450extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
451#endif
452extern BOOL string_vformat(uschar *, int, const char *, va_list);
453extern int strcmpic(const uschar *, const uschar *);
454extern int strncmpic(const uschar *, const uschar *, int);
455extern uschar *strstric(uschar *, uschar *, BOOL);
456
457extern uschar *tod_stamp(int);
458
459extern void tls_modify_variables(tls_support *);
460extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
461 BOOL *, oicf, void*);
462extern void transport_init(void);
463extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
464 int);
465extern uschar *transport_rcpt_address(address_item *, BOOL);
466extern BOOL transport_set_up_command(const uschar ***, uschar *,
467 BOOL, int, address_item *, uschar *, uschar **);
468extern void transport_update_waiting(host_item *, uschar *);
469extern BOOL transport_write_block(int, uschar *, int);
470extern BOOL transport_write_string(int, const char *, ...);
471extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
472 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
473extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
474 uschar *, uschar *, uschar *, rewrite_rule *, int);
475extern void tree_add_duplicate(uschar *, address_item *);
476extern void tree_add_nonrecipient(uschar *);
477extern void tree_add_unusable(host_item *);
478extern int tree_insertnode(tree_node **, tree_node *);
479extern tree_node *tree_search(tree_node *, const uschar *);
480extern void tree_write(tree_node *, FILE *);
481extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
482
483#ifdef WITH_CONTENT_SCAN
484extern void unspool_mbox(void);
485#endif
486#ifdef SUPPORT_I18N
487extern void utf8_version_report(FILE *);
488#endif
489
490extern int verify_address(address_item *, FILE *, int, int, int, int,
491 uschar *, uschar *, BOOL *);
492extern int verify_check_dnsbl(int, const uschar **, uschar **);
493extern int verify_check_header_address(uschar **, uschar **, int, int, int,
494 uschar *, uschar *, int, int *);
495extern int verify_check_headers(uschar **);
496extern int verify_check_header_names_ascii(uschar **);
497extern int verify_check_host(uschar **);
498extern int verify_check_notblind(void);
499extern int verify_check_given_host(uschar **, host_item *);
500extern int verify_check_this_host(const uschar **, unsigned int *,
501 const uschar*, const uschar *, const uschar **);
502extern address_item *verify_checked_sender(uschar *);
503extern void verify_get_ident(int);
504extern BOOL verify_sender(int *, uschar **);
505extern BOOL verify_sender_preliminary(int *, uschar **);
506extern void version_init(void);
507
508extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
509
510/* vi: aw
511*/
512/* End of functions.h */
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