2fe681394a7d3b8c53d910f91d0c02870389bf75
[exim.git] / src / src / functions.h
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2015 */
6 /* See the file NOTICE for conditions of use and distribution. */
7
8
9 /* Prototypes for functions that appear in various modules. Gathered together
10 to avoid having a lot of tiddly little headers with only a couple of lines in
11 them. However, some functions that are used (or not used) by utility programs
12 are in in fact in separate headers. */
13
14
15 #ifdef EXIM_PERL
16 extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
17 uschar **);
18 extern void cleanup_perl(void);
19 extern uschar *init_perl(uschar *);
20 #endif
21
22
23 #ifdef SUPPORT_TLS
24 extern const char *
25 std_dh_prime_default(void);
26 extern const char *
27 std_dh_prime_named(const uschar *);
28
29 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
30 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
31 extern uschar * tls_cert_issuer(void *, uschar * mod);
32 extern uschar * tls_cert_not_before(void *, uschar * mod);
33 extern uschar * tls_cert_not_after(void *, uschar * mod);
34 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
35 extern uschar * tls_cert_serial_number(void *, uschar * mod);
36 extern uschar * tls_cert_signature(void *, uschar * mod);
37 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
38 extern uschar * tls_cert_subject(void *, uschar * mod);
39 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
40 extern uschar * tls_cert_version(void *, uschar * mod);
41
42 extern uschar * tls_cert_fprt_md5(void *);
43 extern uschar * tls_cert_fprt_sha1(void *);
44 extern uschar * tls_cert_fprt_sha256(void *);
45
46 extern int tls_client_start(int, host_item *, address_item *,
47 transport_instance *
48 # ifdef EXPERIMENTAL_DANE
49 , dns_answer *
50 # endif
51 );
52 extern void tls_close(BOOL, BOOL);
53 extern int tls_export_cert(uschar *, size_t, void *);
54 extern int tls_feof(void);
55 extern int tls_ferror(void);
56 extern void tls_free_cert(void **);
57 extern int tls_getc(void);
58 extern int tls_import_cert(const uschar *, void **);
59 extern int tls_read(BOOL, uschar *, size_t);
60 extern int tls_server_start(const uschar *);
61 extern BOOL tls_smtp_buffered(void);
62 extern int tls_ungetc(int);
63 extern int tls_write(BOOL, const uschar *, size_t);
64 extern uschar *tls_validate_require_cipher(void);
65 extern void tls_version_report(FILE *);
66 # ifndef USE_GNUTLS
67 extern BOOL tls_openssl_options_parse(uschar *, long *);
68 # endif
69 extern uschar * tls_field_from_dn(uschar *, const uschar *);
70 extern BOOL tls_is_name_for_cert(const uschar *, void *);
71
72 # ifdef EXPERIMENTAL_DANE
73 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL, BOOL *);
74 # endif
75
76 #endif /*SUPPORT_TLS*/
77
78
79 /* Everything else... */
80
81 extern acl_block *acl_read(uschar *(*)(void), uschar **);
82 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
83 extern int acl_eval(int, uschar *, uschar **, uschar **);
84
85 extern tree_node *acl_var_create(uschar *);
86 extern void acl_var_write(uschar *, uschar *, void *);
87 extern uschar *auth_b64encode(uschar *, int);
88 extern int auth_b64decode(uschar *, uschar **);
89 extern int auth_call_pam(const uschar *, uschar **);
90 extern int auth_call_pwcheck(uschar *, uschar **);
91 extern int auth_call_radius(const uschar *, uschar **);
92 extern int auth_call_saslauthd(const uschar *, const uschar *,
93 const uschar *, const uschar *, uschar **);
94 extern int auth_check_serv_cond(auth_instance *);
95 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
96
97 extern int auth_get_data(uschar **, uschar *, int);
98 extern int auth_get_no64_data(uschar **, uschar *);
99 extern uschar *auth_xtextencode(uschar *, int);
100 extern int auth_xtextdecode(uschar *, uschar **);
101
102 extern void bits_clear(unsigned int *, size_t, int *);
103 extern void bits_set(unsigned int *, size_t, int *);
104
105 extern void cancel_cutthrough_connection(const char *);
106 extern int check_host(void *, const uschar *, const uschar **, uschar **);
107 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
108 extern pid_t child_open_uid(const uschar **, const uschar **, int,
109 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
110 extern uschar *cutthrough_finaldot(void);
111 extern BOOL cutthrough_flush_send(void);
112 extern BOOL cutthrough_headers_send(void);
113 extern BOOL cutthrough_predata(void);
114 extern BOOL cutthrough_puts(uschar *, int);
115 extern BOOL cutthrough_put_nl(void);
116
117 extern void daemon_go(void);
118
119 #ifdef EXPERIMENTAL_DCC
120 extern int dcc_process(uschar **);
121 #endif
122
123 extern void debug_logging_activate(uschar *, uschar *);
124 extern void debug_print_argv(const uschar **);
125 extern void debug_print_ids(uschar *);
126 extern void debug_print_string(uschar *);
127 extern void debug_print_tree(tree_node *);
128 extern void debug_vprintf(const char *, va_list);
129 extern void decode_bits(unsigned int *, size_t, int *,
130 uschar *, bit_table *, int, uschar *, int);
131 extern address_item *deliver_make_addr(uschar *, BOOL);
132 extern void deliver_init(void);
133 extern void delivery_log(int, address_item *, int, uschar *);
134 extern int deliver_message(uschar *, BOOL, BOOL);
135 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
136 extern void deliver_set_expansions(address_item *);
137 extern int deliver_split_address(address_item *);
138 extern void deliver_succeeded(address_item *);
139
140 extern uschar *deliver_get_sender_address (uschar *id);
141
142 #ifdef WITH_OLD_DEMIME
143 extern int demime(uschar **);
144 #endif
145 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
146 #ifndef DISABLE_DKIM
147 extern BOOL dkim_transport_write_message(address_item *, int, int,
148 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
149 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
150 #endif
151 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
152 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
153 extern void dns_build_reverse(const uschar *, uschar *);
154 extern void dns_init(BOOL, BOOL, BOOL);
155 extern BOOL dns_is_aa(const dns_answer *);
156 extern BOOL dns_is_secure(const dns_answer *);
157 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
158 extern void dns_pattern_init(void);
159 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
160 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
161 extern uschar *dns_text_type(int);
162 extern void dscp_list_to_stream(FILE *);
163 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
164
165 extern void enq_end(uschar *);
166 extern BOOL enq_start(uschar *, unsigned);
167 #ifdef EXPERIMENTAL_EVENT
168 extern uschar *event_raise(uschar *, const uschar *, uschar *);
169 #endif
170 extern void exim_exit(int);
171 extern void exim_nullstd(void);
172 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
173 extern int exim_tvcmp(struct timeval *, struct timeval *);
174 extern void exim_wait_tick(struct timeval *, int);
175 extern int exp_bool(address_item *addr,
176 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
177 uschar *svalue, BOOL *rvalue);
178 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
179 extern uschar *expand_string(uschar *); /* public, cannot make const */
180 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
181 extern uschar *expand_string_copy(const uschar *);
182 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
183 extern void modify_variable(uschar *, void *);
184
185 extern BOOL fd_ready(int, int);
186
187 extern int filter_interpret(uschar *, int, address_item **, uschar **);
188 extern BOOL filter_personal(string_item *, BOOL);
189 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
190 extern BOOL filter_system_interpret(address_item **, uschar **);
191
192 extern uschar * fn_hdrs_added(void);
193
194 extern void header_add(int, const char *, ...);
195 extern int header_checkname(header_line *, BOOL);
196 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
197 extern int host_address_extract_port(uschar *);
198 extern uschar *host_and_ident(BOOL);
199 extern int host_aton(const uschar *, int *);
200 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
201 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
202 extern void host_build_log_info(void);
203 extern void host_build_sender_fullhost(void);
204 extern BOOL host_find_byname(host_item *, const uschar *, int,
205 const uschar **, BOOL);
206 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
207 uschar *, const dnssec_domains *, const uschar **, BOOL *);
208 extern ip_address_item *host_find_interfaces(void);
209 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
210 extern BOOL host_is_tls_on_connect_port(int);
211 extern int host_item_get_port(host_item *);
212 extern void host_mask(int, int *, int);
213 extern int host_name_lookup(void);
214 extern int host_nmtoa(int, int *, int, uschar *, int);
215 extern uschar *host_ntoa(int, const void *, uschar *, int *);
216 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
217
218 extern uschar *imap_utf7_encode(uschar *, const uschar *,
219 uschar, uschar *, uschar **);
220
221 extern void invert_address(uschar *, uschar *);
222 extern int ip_addr(void *, int, const uschar *, int);
223 extern int ip_bind(int, int, uschar *, int);
224 extern int ip_connect(int, int, const uschar *, int, int);
225 extern int ip_connectedsocket(int, const uschar *, int, int,
226 int, host_item *, uschar **);
227 extern int ip_get_address_family(int);
228 extern void ip_keepalive(int, const uschar *, BOOL);
229 extern int ip_recv(int, uschar *, int, int);
230 extern int ip_socket(int, int);
231
232 extern int ip_tcpsocket(const uschar *, uschar **, int);
233 extern int ip_unixsocket(const uschar *, uschar **);
234 extern int ip_streamsocket(const uschar *, uschar **, int);
235
236 extern uschar *local_part_quote(uschar *);
237 extern int log_create(uschar *);
238 extern int log_create_as_exim(uschar *);
239 extern void log_close_all(void);
240
241 #ifdef WITH_CONTENT_SCAN
242 extern int malware(const uschar *, int);
243 extern int malware_in_file(uschar *);
244 extern void malware_init(void);
245 #endif
246 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
247 unsigned int *, int, int, const uschar **);
248 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
249 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
250 const uschar *, const uschar **);
251 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
252 unsigned int *, int, BOOL, const uschar **);
253 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
254 const uschar **);
255 extern void md5_end(md5 *, const uschar *, int, uschar *);
256 extern void md5_mid(md5 *, const uschar *);
257 extern void md5_start(md5 *);
258 extern void millisleep(int);
259 #ifdef WITH_CONTENT_SCAN
260 struct mime_boundary_context;
261 extern int mime_acl_check(uschar *acl, FILE *f,
262 struct mime_boundary_context *, uschar **, uschar **);
263 extern int mime_decode(const uschar **);
264 extern int mime_regex(const uschar **);
265 #endif
266 extern uschar *moan_check_errorcopy(uschar *);
267 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
268 BOOL, uschar *);
269 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
270 extern void moan_tell_someone(uschar *, address_item *,
271 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
272 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
273 extern void moan_write_from(FILE *);
274 extern FILE *modefopen(const uschar *, const char *, mode_t);
275
276 extern void open_cutthrough_connection( address_item * addr );
277
278 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
279 BOOL);
280 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
281 const uschar *, uschar *, error_block **);
282 extern uschar *parse_find_address_end(uschar *, BOOL);
283 extern uschar *parse_find_at(uschar *);
284 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
285 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
286 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
287 extern uschar *parse_date_time(uschar *str, time_t *t);
288 extern int vaguely_random_number(int);
289 #ifdef SUPPORT_TLS
290 extern int vaguely_random_number_fallback(int);
291 #endif
292
293 extern BOOL queue_action(uschar *, int, uschar **, int, int);
294 extern void queue_check_only(void);
295 extern void queue_list(int, uschar **, int);
296 extern void queue_count(void);
297 extern void queue_run(uschar *, uschar *, BOOL);
298
299 extern int random_number(int);
300 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
301 uschar *, uschar *, uschar *, ugid_block *, address_item **,
302 uschar **, error_block **, int *, uschar *);
303 extern int rda_is_filter(const uschar *);
304 extern BOOL readconf_depends(driver_instance *, uschar *);
305 extern void readconf_driver_init(uschar *, driver_instance **,
306 driver_info *, int, void *, int, optionlist *, int);
307 extern uschar *readconf_find_option(void *);
308 extern void readconf_main(void);
309 extern void readconf_print(uschar *, uschar *, BOOL);
310 extern uschar *readconf_printtime(int);
311 extern uschar *readconf_readname(uschar *, int, uschar *);
312 extern int readconf_readtime(const uschar *, int, BOOL);
313 extern void readconf_rest();
314 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
315 extern void read_message_body(BOOL);
316 extern void receive_bomb_out(uschar *, uschar *);
317 extern BOOL receive_check_fs(int);
318 extern BOOL receive_check_set_sender(uschar *);
319 extern BOOL receive_msg(BOOL);
320 extern int receive_statvfs(BOOL, int *);
321 extern void receive_swallow_smtp(void);
322 #ifdef WITH_CONTENT_SCAN
323 extern int regex(const uschar **);
324 #endif
325 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
326 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
327 extern void retry_add_item(address_item *, uschar *, int);
328 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
329 uschar **, uschar **);
330 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
331 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
332 dbdata_retry *, time_t);
333 extern void retry_update(address_item **, address_item **, address_item **);
334 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
335 extern uschar *rewrite_address_qualify(uschar *, BOOL);
336 extern header_line *rewrite_header(header_line *,
337 const uschar *, const uschar *,
338 rewrite_rule *, int, BOOL);
339 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
340 rewrite_rule *);
341 extern void rewrite_test(uschar *);
342 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
343 uschar **);
344 extern int route_address(address_item *, address_item **, address_item **,
345 address_item **, address_item **, int);
346 extern int route_check_prefix(const uschar *, const uschar *);
347 extern int route_check_suffix(const uschar *, const uschar *);
348 extern BOOL route_findgroup(uschar *, gid_t *);
349 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
350 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
351 uschar **);
352 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
353 struct passwd **, uid_t *, uschar **);
354 extern void route_init(void);
355 extern void route_tidyup(void);
356
357 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
358 int, int *);
359 extern int search_findtype(const uschar *, int);
360 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
361 int *);
362 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
363 extern void search_tidyup(void);
364 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
365 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
366 extern void sha1_mid(sha1 *, const uschar *);
367 extern void sha1_start(sha1 *);
368 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
369 uschar *, address_item **, uschar **);
370 extern void sigalrm_handler(int);
371 extern BOOL smtp_buffered(void);
372 extern void smtp_closedown(uschar *);
373 extern int smtp_connect(host_item *, int, int, uschar *, int,
374 transport_instance *);
375 extern int smtp_sock_connect(host_item *, int, int, uschar *,
376 transport_instance * tb, int);
377 extern int smtp_feof(void);
378 extern int smtp_ferror(void);
379 extern uschar *smtp_get_connection_info(void);
380 extern BOOL smtp_get_interface(uschar *, int, address_item *,
381 uschar **, uschar *);
382 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
383 extern int smtp_getc(void);
384 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
385 extern void smtp_log_no_mail(void);
386 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
387 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
388 extern void smtp_respond(uschar *, int, BOOL, uschar *);
389 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
390 extern void smtp_send_prohibition_message(int, uschar *);
391 extern int smtp_setup_msg(void);
392 extern BOOL smtp_start_session(void);
393 extern int smtp_ungetc(int);
394 extern BOOL smtp_verify_helo(void);
395 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
396 #ifdef WITH_CONTENT_SCAN
397 extern int spam(const uschar **);
398 extern FILE *spool_mbox(unsigned long *, const uschar *);
399 #endif
400 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
401 extern BOOL spool_open_datafile(uschar *);
402 extern int spool_open_temp(uschar *);
403 extern int spool_read_header(uschar *, BOOL, BOOL);
404 extern int spool_write_header(uschar *, int, uschar **);
405 extern int stdin_getc(void);
406 extern int stdin_feof(void);
407 extern int stdin_ferror(void);
408 extern int stdin_ungetc(int);
409 extern uschar *string_append(uschar *, int *, int *, int, ...);
410 extern uschar *string_append_listele(uschar *, uschar, const uschar *);
411 extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
412 extern uschar *string_base62(unsigned long int);
413 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
414 extern uschar *string_copy_dnsdomain(uschar *);
415 extern uschar *string_copy_malloc(const uschar *);
416 extern uschar *string_copylc(const uschar *);
417 extern uschar *string_copynlc(uschar *, int);
418 extern uschar *string_dequote(const uschar **);
419 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
420 extern uschar *string_format_size(int, uschar *);
421 extern int string_interpret_escape(const uschar **);
422 extern int string_is_ip_address(const uschar *, int *);
423 #ifdef EXPERIMENTAL_INTERNATIONAL
424 extern BOOL string_is_utf8(const uschar *);
425 #endif
426 extern uschar *string_log_address(address_item *, BOOL, BOOL);
427 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
428 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
429 extern const uschar *string_printing2(const uschar *, BOOL);
430 extern uschar *string_split_message(uschar *);
431 extern uschar *string_unprinting(uschar *);
432 #ifdef EXPERIMENTAL_INTERNATIONAL
433 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
434 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
435 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
436 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
437 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
438 #endif
439 extern BOOL string_vformat(uschar *, int, const char *, va_list);
440 extern int strcmpic(const uschar *, const uschar *);
441 extern int strncmpic(const uschar *, const uschar *, int);
442 extern uschar *strstric(uschar *, uschar *, BOOL);
443
444 extern uschar *tod_stamp(int);
445
446 extern void tls_modify_variables(tls_support *);
447 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
448 BOOL *, oicf, void*);
449 extern void transport_init(void);
450 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
451 int);
452 extern uschar *transport_rcpt_address(address_item *, BOOL);
453 extern BOOL transport_set_up_command(const uschar ***, uschar *,
454 BOOL, int, address_item *, uschar *, uschar **);
455 extern void transport_update_waiting(host_item *, uschar *);
456 extern BOOL transport_write_block(int, uschar *, int);
457 extern BOOL transport_write_string(int, const char *, ...);
458 extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
459 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
460 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
461 uschar *, uschar *, uschar *, rewrite_rule *, int);
462 extern void tree_add_duplicate(uschar *, address_item *);
463 extern void tree_add_nonrecipient(uschar *);
464 extern void tree_add_unusable(host_item *);
465 extern int tree_insertnode(tree_node **, tree_node *);
466 extern tree_node *tree_search(tree_node *, const uschar *);
467 extern void tree_write(tree_node *, FILE *);
468 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
469
470 #ifdef WITH_CONTENT_SCAN
471 extern void unspool_mbox(void);
472 #endif
473 #ifdef EXPERIMENTAL_INTERNATIONAL
474 extern void utf8_version_report(FILE *);
475 #endif
476
477 extern int verify_address(address_item *, FILE *, int, int, int, int,
478 uschar *, uschar *, BOOL *);
479 extern int verify_check_dnsbl(const uschar **);
480 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
481 uschar *, uschar *, int, int *);
482 extern int verify_check_headers(uschar **);
483 extern int verify_check_header_names_ascii(uschar **);
484 extern int verify_check_host(uschar **);
485 extern int verify_check_notblind(void);
486 extern int verify_check_given_host(uschar **, host_item *);
487 extern int verify_check_this_host(const uschar **, unsigned int *,
488 const uschar*, const uschar *, const uschar **);
489 extern address_item *verify_checked_sender(uschar *);
490 extern void verify_get_ident(int);
491 extern BOOL verify_sender(int *, uschar **);
492 extern BOOL verify_sender_preliminary(int *, uschar **);
493 extern void version_init(void);
494
495 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
496
497 /* vi: aw
498 */
499 /* End of functions.h */