78f6bcedae64318a36af5460dc7c03572b2a4d46
[exim.git] / src / src / functions.h
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
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_der_b64(void * cert);
43 extern uschar * tls_cert_fprt_md5(void *);
44 extern uschar * tls_cert_fprt_sha1(void *);
45 extern uschar * tls_cert_fprt_sha256(void *);
46
47 extern int tls_client_start(int, host_item *, address_item *,
48 transport_instance *
49 # ifdef EXPERIMENTAL_DANE
50 , dns_answer *
51 # endif
52 );
53 extern void tls_close(BOOL, BOOL);
54 extern int tls_export_cert(uschar *, size_t, void *);
55 extern int tls_feof(void);
56 extern int tls_ferror(void);
57 extern void tls_free_cert(void **);
58 extern int tls_getc(void);
59 extern void tls_get_cache(void);
60 extern int tls_import_cert(const uschar *, void **);
61 extern int tls_read(BOOL, uschar *, size_t);
62 extern int tls_server_start(const uschar *);
63 extern BOOL tls_smtp_buffered(void);
64 extern int tls_ungetc(int);
65 extern int tls_write(BOOL, const uschar *, size_t);
66 extern uschar *tls_validate_require_cipher(void);
67 extern void tls_version_report(FILE *);
68 # ifndef USE_GNUTLS
69 extern BOOL tls_openssl_options_parse(uschar *, long *);
70 # endif
71 extern uschar * tls_field_from_dn(uschar *, const uschar *);
72 extern BOOL tls_is_name_for_cert(const uschar *, void *);
73
74 # ifdef EXPERIMENTAL_DANE
75 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
76 # endif
77
78 #endif /*SUPPORT_TLS*/
79
80
81 /* Everything else... */
82
83 extern acl_block *acl_read(uschar *(*)(void), uschar **);
84 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
85 extern int acl_eval(int, uschar *, uschar **, uschar **);
86
87 extern tree_node *acl_var_create(uschar *);
88 extern void acl_var_write(uschar *, uschar *, void *);
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 uschar *b64encode(uschar *, int);
103 extern int b64decode(uschar *, uschar **);
104 extern int bdat_getc(void);
105 extern void bits_clear(unsigned int *, size_t, int *);
106 extern void bits_set(unsigned int *, size_t, int *);
107
108 extern void cancel_cutthrough_connection(const char *);
109 extern int check_host(void *, const uschar *, const uschar **, uschar **);
110 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
111 extern pid_t child_open_uid(const uschar **, const uschar **, int,
112 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
113 extern BOOL cleanup_environment(void);
114 extern uschar *cutthrough_finaldot(void);
115 extern BOOL cutthrough_flush_send(void);
116 extern BOOL cutthrough_headers_send(void);
117 extern BOOL cutthrough_predata(void);
118 extern BOOL cutthrough_puts(uschar *, int);
119 extern BOOL cutthrough_put_nl(void);
120
121 extern void daemon_go(void);
122
123 #ifdef EXPERIMENTAL_DCC
124 extern int dcc_process(uschar **);
125 #endif
126
127 extern void debug_logging_activate(uschar *, uschar *);
128 extern void debug_logging_stop(void);
129 extern void debug_print_argv(const uschar **);
130 extern void debug_print_ids(uschar *);
131 extern void debug_print_string(uschar *);
132 extern void debug_print_tree(tree_node *);
133 extern void debug_vprintf(const char *, va_list);
134 extern void decode_bits(unsigned int *, size_t, int *,
135 uschar *, bit_table *, int, uschar *, int);
136 extern address_item *deliver_make_addr(uschar *, BOOL);
137 extern void deliver_init(void);
138 extern void delivery_log(int, address_item *, int, uschar *);
139 extern int deliver_message(uschar *, BOOL, BOOL);
140 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
141 extern void deliver_set_expansions(address_item *);
142 extern int deliver_split_address(address_item *);
143 extern void deliver_succeeded(address_item *);
144
145 extern uschar *deliver_get_sender_address (uschar *id);
146
147 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
148 #ifndef DISABLE_DKIM
149 extern BOOL dkim_transport_write_message(int, transport_ctx *,
150 struct ob_dkim *);
151 #endif
152 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
153 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
154 extern void dns_build_reverse(const uschar *, uschar *);
155 extern void dns_init(BOOL, BOOL, BOOL);
156 extern BOOL dns_is_aa(const dns_answer *);
157 extern BOOL dns_is_secure(const dns_answer *);
158 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
159 extern void dns_pattern_init(void);
160 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
161 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
162 extern uschar *dns_text_type(int);
163 extern void dscp_list_to_stream(FILE *);
164 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
165
166 extern void enq_end(uschar *);
167 extern BOOL enq_start(uschar *, unsigned);
168 #ifndef DISABLE_EVENT
169 extern uschar *event_raise(uschar *, const uschar *, uschar *);
170 extern void msg_event_raise(const uschar *, const address_item *);
171 #endif
172 extern uschar ehlo_response(uschar *, size_t, uschar);
173 extern const uschar * exim_errstr(int);
174 extern void exim_exit(int);
175 extern void exim_nullstd(void);
176 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
177 extern int exim_tvcmp(struct timeval *, struct timeval *);
178 extern void exim_wait_tick(struct timeval *, int);
179 extern int exp_bool(address_item *addr,
180 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
181 uschar *svalue, BOOL *rvalue);
182 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
183 extern uschar *expand_string(uschar *); /* public, cannot make const */
184 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
185 extern uschar *expand_hide_passwords(uschar * );
186 extern uschar *expand_string_copy(const uschar *);
187 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
188 extern void modify_variable(uschar *, void *);
189
190 extern BOOL fd_ready(int, int);
191
192 extern int filter_interpret(uschar *, int, address_item **, uschar **);
193 extern BOOL filter_personal(string_item *, BOOL);
194 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
195 extern BOOL filter_system_interpret(address_item **, uschar **);
196
197 extern uschar * fn_hdrs_added(void);
198
199 extern void header_add(int, const char *, ...);
200 extern int header_checkname(header_line *, BOOL);
201 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
202 extern int host_address_extract_port(uschar *);
203 extern uschar *host_and_ident(BOOL);
204 extern int host_aton(const uschar *, int *);
205 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
206 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
207 extern void host_build_log_info(void);
208 extern void host_build_sender_fullhost(void);
209 extern int host_find_byname(host_item *, const uschar *, int,
210 const uschar **, BOOL);
211 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
212 uschar *, const dnssec_domains *, const uschar **, BOOL *);
213 extern ip_address_item *host_find_interfaces(void);
214 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
215 extern BOOL host_is_tls_on_connect_port(int);
216 extern int host_item_get_port(host_item *);
217 extern void host_mask(int, int *, int);
218 extern int host_name_lookup(void);
219 extern int host_nmtoa(int, int *, int, uschar *, int);
220 extern uschar *host_ntoa(int, const void *, uschar *, int *);
221 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
222
223 extern uschar *imap_utf7_encode(uschar *, const uschar *,
224 uschar, uschar *, uschar **);
225
226 extern void invert_address(uschar *, uschar *);
227 extern int ip_addr(void *, int, const uschar *, int);
228 extern int ip_bind(int, int, uschar *, int);
229 extern int ip_connect(int, int, const uschar *, int, int);
230 extern int ip_connectedsocket(int, const uschar *, int, int,
231 int, host_item *, uschar **);
232 extern int ip_get_address_family(int);
233 extern void ip_keepalive(int, const uschar *, BOOL);
234 extern int ip_recv(int, uschar *, int, int);
235 extern int ip_socket(int, int);
236
237 extern int ip_tcpsocket(const uschar *, uschar **, int);
238 extern int ip_unixsocket(const uschar *, uschar **);
239 extern int ip_streamsocket(const uschar *, uschar **, int);
240
241 extern int ipv6_nmtoa(int *, uschar *);
242
243 extern uschar *local_part_quote(uschar *);
244 extern int log_create(uschar *);
245 extern int log_create_as_exim(uschar *);
246 extern void log_close_all(void);
247
248 #ifdef WITH_CONTENT_SCAN
249 extern int malware(const uschar *, int);
250 extern int malware_in_file(uschar *);
251 extern void malware_init(void);
252 #endif
253 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
254 unsigned int *, int, int, const uschar **);
255 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
256 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
257 const uschar *, const uschar **);
258 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
259 unsigned int *, int, BOOL, const uschar **);
260 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
261 const uschar **);
262 extern void md5_end(md5 *, const uschar *, int, uschar *);
263 extern void md5_mid(md5 *, const uschar *);
264 extern void md5_start(md5 *);
265 extern void millisleep(int);
266 #ifdef WITH_CONTENT_SCAN
267 struct mime_boundary_context;
268 extern int mime_acl_check(uschar *acl, FILE *f,
269 struct mime_boundary_context *, uschar **, uschar **);
270 extern int mime_decode(const uschar **);
271 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
272 extern int mime_regex(const uschar **);
273 extern void mime_set_anomaly(int);
274 #endif
275 extern uschar *moan_check_errorcopy(uschar *);
276 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
277 BOOL, uschar *);
278 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
279 extern void moan_tell_someone(uschar *, address_item *,
280 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
281 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
282 extern void moan_write_from(FILE *);
283 extern FILE *modefopen(const uschar *, const char *, mode_t);
284
285 extern int open_cutthrough_connection( address_item * addr );
286
287 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
288 BOOL);
289 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
290 const uschar *, uschar *, error_block **);
291 extern uschar *parse_find_address_end(uschar *, BOOL);
292 extern uschar *parse_find_at(uschar *);
293 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
294 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
295 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
296 extern uschar *parse_date_time(uschar *str, time_t *t);
297 extern int vaguely_random_number(int);
298 #ifdef SUPPORT_TLS
299 extern int vaguely_random_number_fallback(int);
300 #endif
301
302 extern BOOL queue_action(uschar *, int, uschar **, int, int);
303 extern void queue_check_only(void);
304 extern void queue_list(int, uschar **, int);
305 extern void queue_count(void);
306 extern void queue_run(uschar *, uschar *, BOOL);
307
308 extern int random_number(int);
309 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
310 uschar *, uschar *, uschar *, ugid_block *, address_item **,
311 uschar **, error_block **, int *, uschar *);
312 extern int rda_is_filter(const uschar *);
313 extern BOOL readconf_depends(driver_instance *, uschar *);
314 extern void readconf_driver_init(uschar *, driver_instance **,
315 driver_info *, int, void *, int, optionlist *, int);
316 extern void readconf_features(void);
317 extern void readconf_options(void);
318 extern uschar *readconf_find_option(void *);
319 extern void readconf_main(BOOL);
320 extern void readconf_options_from_list(optionlist *, unsigned, uschar *);
321 extern void readconf_options_routers(void);
322 extern void readconf_options_transports(void);
323 extern void readconf_print(uschar *, uschar *, BOOL);
324 extern uschar *readconf_printtime(int);
325 extern uschar *readconf_readname(uschar *, int, uschar *);
326 extern int readconf_readtime(const uschar *, int, BOOL);
327 extern void readconf_rest(void);
328 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
329 extern void readconf_save_config(const uschar *);
330 extern void read_macro_assignment(uschar *);
331 extern void read_message_body(BOOL);
332 extern void receive_bomb_out(uschar *, uschar *);
333 extern BOOL receive_check_fs(int);
334 extern BOOL receive_check_set_sender(uschar *);
335 extern BOOL receive_msg(BOOL);
336 extern int receive_statvfs(BOOL, int *);
337 extern void receive_swallow_smtp(void);
338 #ifdef WITH_CONTENT_SCAN
339 extern int regex(const uschar **);
340 #endif
341 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
342 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
343 extern void retry_add_item(address_item *, uschar *, int);
344 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
345 uschar **, uschar **);
346 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
347 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
348 dbdata_retry *, time_t);
349 extern void retry_update(address_item **, address_item **, address_item **);
350 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
351 extern uschar *rewrite_address_qualify(uschar *, BOOL);
352 extern header_line *rewrite_header(header_line *,
353 const uschar *, const uschar *,
354 rewrite_rule *, int, BOOL);
355 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
356 rewrite_rule *);
357 extern void rewrite_test(uschar *);
358 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
359 uschar **);
360 extern int route_address(address_item *, address_item **, address_item **,
361 address_item **, address_item **, int);
362 extern int route_check_prefix(const uschar *, const uschar *);
363 extern int route_check_suffix(const uschar *, const uschar *);
364 extern BOOL route_findgroup(uschar *, gid_t *);
365 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
366 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
367 uschar **);
368 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
369 struct passwd **, uid_t *, uschar **);
370 extern void route_init(void);
371 extern void route_tidyup(void);
372
373 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
374 int, int *);
375 extern int search_findtype(const uschar *, int);
376 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
377 int *);
378 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
379 extern void search_tidyup(void);
380 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
381 extern void sha1_end(hctx *, const uschar *, int, uschar *);
382 extern void sha1_mid(hctx *, const uschar *);
383 extern void sha1_start(hctx *);
384 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
385 uschar *, address_item **, uschar **);
386 extern void sigalrm_handler(int);
387 extern BOOL smtp_buffered(void);
388 extern void smtp_closedown(uschar *);
389 extern int smtp_connect(host_item *, int, int, uschar *, int,
390 transport_instance *);
391 extern int smtp_sock_connect(host_item *, int, int, uschar *,
392 transport_instance * tb, int);
393 extern int smtp_feof(void);
394 extern int smtp_ferror(void);
395 extern uschar *smtp_get_connection_info(void);
396 extern BOOL smtp_get_interface(uschar *, int, address_item *,
397 uschar **, uschar *);
398 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
399 extern int smtp_getc(void);
400 extern void smtp_get_cache(void);
401 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
402 extern void smtp_log_no_mail(void);
403 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
404 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
405 extern void smtp_respond(uschar *, int, BOOL, uschar *);
406 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
407 extern void smtp_send_prohibition_message(int, uschar *);
408 extern int smtp_setup_msg(void);
409 extern BOOL smtp_start_session(void);
410 extern int smtp_ungetc(int);
411 extern BOOL smtp_verify_helo(void);
412 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
413 #ifdef WITH_CONTENT_SCAN
414 extern int spam(const uschar **);
415 extern FILE *spool_mbox(unsigned long *, const uschar *);
416 #endif
417 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
418 extern uschar *spool_fname(const uschar *, uschar *, uschar *, uschar *);
419 extern uschar *spool_sname(const uschar *, uschar *);
420 extern int spool_open_datafile(uschar *);
421 extern int spool_open_temp(uschar *);
422 extern int spool_read_header(uschar *, BOOL, BOOL);
423 extern int spool_write_header(uschar *, int, uschar **);
424 extern int stdin_getc(void);
425 extern int stdin_feof(void);
426 extern int stdin_ferror(void);
427 extern int stdin_ungetc(int);
428 extern uschar *string_append(uschar *, int *, int *, int, ...);
429 extern uschar *string_append_listele(uschar *, uschar, const uschar *);
430 extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
431 extern uschar *string_base62(unsigned long int);
432 extern uschar *string_cat(uschar *, int *, int *, const uschar *);
433 extern uschar *string_catn(uschar *, int *, int *, const uschar *, int);
434 extern int string_compare_by_pointer(const void *, const void *);
435 extern uschar *string_copy_dnsdomain(uschar *);
436 extern uschar *string_copy_malloc(const uschar *);
437 extern uschar *string_copylc(const uschar *);
438 extern uschar *string_copynlc(uschar *, int);
439 extern uschar *string_dequote(const uschar **);
440 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
441 extern uschar *string_format_size(int, uschar *);
442 extern int string_interpret_escape(const uschar **);
443 extern int string_is_ip_address(const uschar *, int *);
444 #ifdef SUPPORT_I18N
445 extern BOOL string_is_utf8(const uschar *);
446 #endif
447 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
448 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
449 extern const uschar *string_printing2(const uschar *, BOOL);
450 extern uschar *string_split_message(uschar *);
451 extern uschar *string_unprinting(uschar *);
452 #ifdef SUPPORT_I18N
453 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
454 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
455 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
456 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
457 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
458 #endif
459 extern BOOL string_vformat(uschar *, int, const char *, va_list);
460 extern int strcmpic(const uschar *, const uschar *);
461 extern int strncmpic(const uschar *, const uschar *, int);
462 extern uschar *strstric(uschar *, uschar *, BOOL);
463
464 extern uschar *tod_stamp(int);
465
466 extern void tls_modify_variables(tls_support *);
467 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
468 BOOL *, oicf, void*);
469 extern void transport_init(void);
470 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
471 int);
472 extern uschar *transport_rcpt_address(address_item *, BOOL);
473 extern BOOL transport_set_up_command(const uschar ***, uschar *,
474 BOOL, int, address_item *, uschar *, uschar **);
475 extern void transport_update_waiting(host_item *, uschar *);
476 extern BOOL transport_write_block(int, uschar *, int);
477 extern BOOL transport_write_string(int, const char *, ...);
478 extern BOOL transport_headers_send(int, transport_ctx *,
479 BOOL (*)(int, transport_ctx *, uschar *, int));
480 extern BOOL transport_write_message(int, transport_ctx *, int);
481 extern void tree_add_duplicate(uschar *, address_item *);
482 extern void tree_add_nonrecipient(uschar *);
483 extern void tree_add_unusable(host_item *);
484 extern int tree_insertnode(tree_node **, tree_node *);
485 extern tree_node *tree_search(tree_node *, const uschar *);
486 extern void tree_write(tree_node *, FILE *);
487 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
488
489 #ifdef WITH_CONTENT_SCAN
490 extern void unspool_mbox(void);
491 #endif
492 #ifdef SUPPORT_I18N
493 extern void utf8_version_report(FILE *);
494 #endif
495
496 extern int verify_address(address_item *, FILE *, int, int, int, int,
497 uschar *, uschar *, BOOL *);
498 extern int verify_check_dnsbl(int, const uschar **, uschar **);
499 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
500 uschar *, uschar *, int, int *);
501 extern int verify_check_headers(uschar **);
502 extern int verify_check_header_names_ascii(uschar **);
503 extern int verify_check_host(uschar **);
504 extern int verify_check_notblind(void);
505 extern int verify_check_given_host(uschar **, host_item *);
506 extern int verify_check_this_host(const uschar **, unsigned int *,
507 const uschar*, const uschar *, const uschar **);
508 extern address_item *verify_checked_sender(uschar *);
509 extern void verify_get_ident(int);
510 extern BOOL verify_sender(int *, uschar **);
511 extern BOOL verify_sender_preliminary(int *, uschar **);
512 extern void version_init(void);
513
514 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
515
516 /* vi: aw
517 */
518 /* End of functions.h */