1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2017 */
6 /* See the file NOTICE for conditions of use and distribution. */
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. */
16 extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
17 uschar **) WARN_UNUSED_RESULT;
18 extern void cleanup_perl(void);
19 extern uschar *init_perl(uschar *);
25 std_dh_prime_default(void);
27 std_dh_prime_named(const uschar *);
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);
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 *);
47 extern int tls_client_start(int, host_item *, address_item *,
49 # ifdef EXPERIMENTAL_DANE
53 extern void tls_close(BOOL, BOOL);
54 extern BOOL tls_could_read(void);
55 extern int tls_export_cert(uschar *, size_t, void *);
56 extern int tls_feof(void);
57 extern int tls_ferror(void);
58 extern void tls_free_cert(void **);
59 extern int tls_getc(unsigned);
60 extern uschar *tls_getbuf(unsigned *);
61 extern void tls_get_cache(void);
62 extern int tls_import_cert(const uschar *, void **);
63 extern int tls_read(BOOL, uschar *, size_t);
64 extern int tls_server_start(const uschar *, uschar **);
65 extern BOOL tls_smtp_buffered(void);
66 extern int tls_ungetc(int);
67 extern int tls_write(BOOL, const uschar *, size_t, BOOL);
68 extern uschar *tls_validate_require_cipher(void);
69 extern void tls_version_report(FILE *);
71 extern BOOL tls_openssl_options_parse(uschar *, long *);
73 extern uschar * tls_field_from_dn(uschar *, const uschar *);
74 extern BOOL tls_is_name_for_cert(const uschar *, void *);
76 # ifdef EXPERIMENTAL_DANE
77 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
80 #endif /*SUPPORT_TLS*/
83 /* Everything else... */
85 extern acl_block *acl_read(uschar *(*)(void), uschar **);
86 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
87 extern int acl_eval(int, uschar *, uschar **, uschar **);
89 extern tree_node *acl_var_create(uschar *);
90 extern void acl_var_write(uschar *, uschar *, void *);
91 extern void assert_no_variables(void *, int, const char *, int);
92 extern int auth_call_pam(const uschar *, uschar **);
93 extern int auth_call_pwcheck(uschar *, uschar **);
94 extern int auth_call_radius(const uschar *, uschar **);
95 extern int auth_call_saslauthd(const uschar *, const uschar *,
96 const uschar *, const uschar *, uschar **);
97 extern int auth_check_serv_cond(auth_instance *);
98 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
101 extern int auth_get_data(uschar **, uschar *, int);
102 extern int auth_get_no64_data(uschar **, uschar *);
103 extern void auth_show_supported(FILE *);
104 extern uschar *auth_xtextencode(uschar *, int);
105 extern int auth_xtextdecode(uschar *, uschar **);
107 extern uschar *b64encode(uschar *, int);
108 extern int b64decode(const uschar *, uschar **);
109 extern int bdat_getc(unsigned);
110 extern uschar *bdat_getbuf(unsigned *);
111 extern int bdat_ungetc(int);
112 extern void bdat_flush_data(void);
114 extern void bits_clear(unsigned int *, size_t, int *);
115 extern void bits_set(unsigned int *, size_t, int *);
117 extern void cancel_cutthrough_connection(BOOL, const uschar *);
118 extern int check_host(void *, const uschar *, const uschar **, uschar **);
119 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
120 extern pid_t child_open_uid(const uschar **, const uschar **, int,
121 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
122 extern BOOL cleanup_environment(void);
123 extern void cutthrough_data_puts(uschar *, int);
124 extern void cutthrough_data_put_nl(void);
125 extern uschar *cutthrough_finaldot(void);
126 extern BOOL cutthrough_flush_send(void);
127 extern BOOL cutthrough_headers_send(void);
128 extern BOOL cutthrough_predata(void);
129 extern void release_cutthrough_connection(const uschar *);
131 extern void daemon_go(void);
133 #ifdef EXPERIMENTAL_DCC
134 extern int dcc_process(uschar **);
137 extern void debug_logging_activate(uschar *, uschar *);
138 extern void debug_logging_stop(void);
139 extern void debug_print_argv(const uschar **);
140 extern void debug_print_ids(uschar *);
141 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
142 extern void debug_print_string(uschar *);
143 extern void debug_print_tree(tree_node *);
144 extern void debug_vprintf(int, const char *, va_list);
145 extern void decode_bits(unsigned int *, size_t, int *,
146 uschar *, bit_table *, int, uschar *, int);
147 extern address_item *deliver_make_addr(uschar *, BOOL);
148 extern void deliver_init(void);
149 extern void delivery_log(int, address_item *, int, uschar *);
150 extern int deliver_message(uschar *, BOOL, BOOL);
151 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
152 extern void deliver_set_expansions(address_item *);
153 extern int deliver_split_address(address_item *);
154 extern void deliver_succeeded(address_item *);
156 extern uschar *deliver_get_sender_address (uschar *id);
157 extern void delivery_re_exec(int);
159 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
161 extern BOOL dkim_transport_write_message(transport_ctx *,
162 struct ob_dkim *, const uschar ** errstr);
164 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
165 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
166 extern void dns_build_reverse(const uschar *, uschar *);
167 extern void dns_init(BOOL, BOOL, BOOL);
168 extern BOOL dns_is_aa(const dns_answer *);
169 extern BOOL dns_is_secure(const dns_answer *);
170 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
171 extern void dns_pattern_init(void);
172 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
173 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
174 extern uschar *dns_text_type(int);
175 extern void dscp_list_to_stream(FILE *);
176 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
178 extern void enq_end(uschar *);
179 extern BOOL enq_start(uschar *, unsigned);
180 #ifndef DISABLE_EVENT
181 extern uschar *event_raise(uschar *, const uschar *, uschar *);
182 extern void msg_event_raise(const uschar *, const address_item *);
184 extern const uschar * exim_errstr(int);
185 extern void exim_exit(int, const uschar *);
186 extern void exim_nullstd(void);
187 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
188 extern void exim_wait_tick(struct timeval *, int);
189 extern int exp_bool(address_item *addr,
190 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
191 uschar *svalue, BOOL *rvalue);
192 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
193 extern uschar *expand_string(uschar *); /* public, cannot make const */
194 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
195 extern uschar *expand_hide_passwords(uschar * );
196 extern uschar *expand_string_copy(const uschar *);
197 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
198 extern void modify_variable(uschar *, void *);
200 extern BOOL fd_ready(int, int);
202 extern int filter_interpret(uschar *, int, address_item **, uschar **);
203 extern BOOL filter_personal(string_item *, BOOL);
204 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
205 extern BOOL filter_system_interpret(address_item **, uschar **);
207 extern uschar * fn_hdrs_added(void);
209 extern void header_add(int, const char *, ...);
210 extern int header_checkname(header_line *, BOOL);
211 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
212 extern int host_address_extract_port(uschar *);
213 extern uschar *host_and_ident(BOOL);
214 extern int host_aton(const uschar *, int *);
215 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
216 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
217 extern void host_build_log_info(void);
218 extern void host_build_sender_fullhost(void);
219 extern int host_find_byname(host_item *, const uschar *, int,
220 const uschar **, BOOL);
221 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
222 uschar *, const dnssec_domains *, const uschar **, BOOL *);
223 extern ip_address_item *host_find_interfaces(void);
224 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
225 extern BOOL host_is_tls_on_connect_port(int);
226 extern int host_item_get_port(host_item *);
227 extern void host_mask(int, int *, int);
228 extern int host_name_lookup(void);
229 extern int host_nmtoa(int, int *, int, uschar *, int);
230 extern uschar *host_ntoa(int, const void *, uschar *, int *);
231 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
233 extern uschar *imap_utf7_encode(uschar *, const uschar *,
234 uschar, uschar *, uschar **);
236 extern void invert_address(uschar *, uschar *);
237 extern int ip_addr(void *, int, const uschar *, int);
238 extern int ip_bind(int, int, uschar *, int);
239 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
240 extern int ip_connectedsocket(int, const uschar *, int, int,
241 int, host_item *, uschar **, const blob *);
242 extern int ip_get_address_family(int);
243 extern void ip_keepalive(int, const uschar *, BOOL);
244 extern int ip_recv(int, uschar *, int, int);
245 extern int ip_socket(int, int);
247 extern int ip_tcpsocket(const uschar *, uschar **, int);
248 extern int ip_unixsocket(const uschar *, uschar **);
249 extern int ip_streamsocket(const uschar *, uschar **, int);
251 extern int ipv6_nmtoa(int *, uschar *);
253 extern uschar *local_part_quote(uschar *);
254 extern int log_create(uschar *);
255 extern int log_create_as_exim(uschar *);
256 extern void log_close_all(void);
258 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
259 extern macro_item * macro_search(const uschar *);
260 extern macro_item * macro_search_largest_prefix(const uschar *);
261 extern macro_item * macro_search_prefix(const uschar *);
262 extern void macro_print(uschar *, uschar *, void *);
263 extern BOOL macro_read_assignment(uschar *);
264 extern uschar *macros_expand(int, int *, BOOL *);
265 extern void mainlog_close(void);
266 #ifdef WITH_CONTENT_SCAN
267 extern int malware(const uschar *, int);
268 extern int malware_in_file(uschar *);
269 extern void malware_init(void);
270 extern void malware_show_supported(FILE *);
272 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
273 unsigned int *, int, int, const uschar **);
274 extern int match_address_list_basic(const uschar *, const uschar **, int);
275 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
276 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
277 const uschar *, const uschar **);
278 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
279 unsigned int *, int, BOOL, const uschar **);
280 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
282 extern void md5_end(md5 *, const uschar *, int, uschar *);
283 extern void md5_mid(md5 *, const uschar *);
284 extern void md5_start(md5 *);
285 extern void millisleep(int);
286 #ifdef WITH_CONTENT_SCAN
287 struct mime_boundary_context;
288 extern int mime_acl_check(uschar *acl, FILE *f,
289 struct mime_boundary_context *, uschar **, uschar **);
290 extern int mime_decode(const uschar **);
291 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
292 extern int mime_regex(const uschar **);
293 extern void mime_set_anomaly(int);
295 extern uschar *moan_check_errorcopy(uschar *);
296 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
298 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
299 extern void moan_tell_someone(uschar *, address_item *,
300 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
301 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
302 extern void moan_write_from(FILE *);
303 extern FILE *modefopen(const uschar *, const char *, mode_t);
305 extern int open_cutthrough_connection( address_item * addr );
307 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
309 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
310 const uschar *, uschar *, error_block **);
311 extern uschar *parse_find_address_end(uschar *, BOOL);
312 extern uschar *parse_find_at(uschar *);
313 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
314 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
315 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
316 extern uschar *parse_date_time(uschar *str, time_t *t);
317 extern int vaguely_random_number(int);
319 extern int vaguely_random_number_fallback(int);
322 extern BOOL queue_action(uschar *, int, uschar **, int, int);
323 extern void queue_check_only(void);
324 extern void queue_list(int, uschar **, int);
325 extern void queue_count(void);
326 extern void queue_run(uschar *, uschar *, BOOL);
328 extern int random_number(int);
329 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
330 uschar *, uschar *, uschar *, ugid_block *, address_item **,
331 uschar **, error_block **, int *, uschar *);
332 extern int rda_is_filter(const uschar *);
333 extern BOOL readconf_depends(driver_instance *, uschar *);
334 extern void readconf_driver_init(uschar *, driver_instance **,
335 driver_info *, int, void *, int, optionlist *, int);
336 extern uschar *readconf_find_option(void *);
337 extern void readconf_main(BOOL);
338 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
339 extern BOOL readconf_print(uschar *, uschar *, BOOL);
340 extern uschar *readconf_printtime(int);
341 extern uschar *readconf_readname(uschar *, int, uschar *);
342 extern int readconf_readtime(const uschar *, int, BOOL);
343 extern void readconf_rest(void);
344 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
345 extern void readconf_save_config(const uschar *);
346 extern void read_message_body(BOOL);
347 extern void receive_bomb_out(uschar *, uschar *);
348 extern BOOL receive_check_fs(int);
349 extern BOOL receive_check_set_sender(uschar *);
350 extern BOOL receive_msg(BOOL);
351 extern int receive_statvfs(BOOL, int *);
352 extern void receive_swallow_smtp(void);
353 #ifdef WITH_CONTENT_SCAN
354 extern int regex(const uschar **);
356 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
357 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
358 extern void retry_add_item(address_item *, uschar *, int);
359 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
360 uschar **, uschar **);
361 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
362 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
363 dbdata_retry *, time_t);
364 extern void retry_update(address_item **, address_item **, address_item **);
365 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
366 extern uschar *rewrite_address_qualify(uschar *, BOOL);
367 extern header_line *rewrite_header(header_line *,
368 const uschar *, const uschar *,
369 rewrite_rule *, int, BOOL);
370 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
372 extern void rewrite_test(uschar *);
373 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
375 extern int route_address(address_item *, address_item **, address_item **,
376 address_item **, address_item **, int);
377 extern int route_check_prefix(const uschar *, const uschar *);
378 extern int route_check_suffix(const uschar *, const uschar *);
379 extern BOOL route_findgroup(uschar *, gid_t *);
380 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
381 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
383 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
384 struct passwd **, uid_t *, uschar **);
385 extern void route_init(void);
386 extern void route_show_supported(FILE *);
387 extern void route_tidyup(void);
389 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
391 extern int search_findtype(const uschar *, int);
392 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
394 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
395 extern void search_tidyup(void);
396 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
397 extern void sha1_end(hctx *, const uschar *, int, uschar *);
398 extern void sha1_mid(hctx *, const uschar *);
399 extern void sha1_start(hctx *);
400 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
401 uschar *, address_item **, uschar **);
402 extern void sigalrm_handler(int);
403 extern BOOL smtp_buffered(void);
404 extern void smtp_closedown(uschar *);
405 extern uschar *smtp_cmd_hist(void);
406 extern int smtp_connect(host_item *, int, uschar *, int,
407 transport_instance *);
408 extern int smtp_sock_connect(host_item *, int, int, uschar *,
409 transport_instance * tb, int, const blob *);
410 extern int smtp_feof(void);
411 extern int smtp_ferror(void);
412 extern uschar *smtp_get_connection_info(void);
413 extern BOOL smtp_get_interface(uschar *, int, address_item *,
414 uschar **, uschar *);
415 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
416 extern int smtp_getc(unsigned);
417 extern uschar *smtp_getbuf(unsigned *);
418 extern void smtp_get_cache(void);
419 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
420 extern void smtp_log_no_mail(void);
421 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
422 extern void smtp_proxy_tls(uschar *, size_t, int *, int);
423 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
424 extern void smtp_respond(uschar *, int, BOOL, uschar *);
425 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
426 extern void smtp_port_for_connect(host_item *, int);
427 extern void smtp_send_prohibition_message(int, uschar *);
428 extern int smtp_setup_msg(void);
429 extern BOOL smtp_start_session(void);
430 extern int smtp_ungetc(int);
431 extern BOOL smtp_verify_helo(void);
432 extern int smtp_write_command(smtp_outblock *, int, const char *, ...) PRINTF_FUNCTION(3,4);
433 #ifdef WITH_CONTENT_SCAN
434 extern int spam(const uschar **);
435 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
437 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
438 extern uschar *spool_dname(const uschar *, uschar *);
439 extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
440 extern uschar *spool_sname(const uschar *, uschar *);
441 extern int spool_open_datafile(uschar *);
442 extern int spool_open_temp(uschar *);
443 extern int spool_read_header(uschar *, BOOL, BOOL);
444 extern int spool_write_header(uschar *, int, uschar **);
445 extern int stdin_getc(unsigned);
446 extern int stdin_feof(void);
447 extern int stdin_ferror(void);
448 extern int stdin_ungetc(int);
449 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
450 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
451 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
452 extern uschar *string_base62(unsigned long int);
453 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
454 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
455 extern int string_compare_by_pointer(const void *, const void *);
456 extern uschar *string_copy_dnsdomain(uschar *);
457 extern uschar *string_copy_malloc(const uschar *);
458 extern uschar *string_copylc(const uschar *);
459 extern uschar *string_copynlc(uschar *, int);
460 extern uschar *string_dequote(const uschar **);
461 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
462 extern uschar *string_format_size(int, uschar *);
463 extern uschar *string_from_gstring(gstring *);
464 extern gstring *string_get(unsigned);
465 extern int string_interpret_escape(const uschar **);
466 extern int string_is_ip_address(const uschar *, int *);
468 extern BOOL string_is_utf8(const uschar *);
470 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
471 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
472 extern const uschar *string_printing2(const uschar *, BOOL);
473 extern uschar *string_split_message(uschar *);
474 extern uschar *string_timediff(struct timeval *);
475 extern uschar *string_timesince(struct timeval *);
476 extern uschar *string_unprinting(uschar *);
478 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
479 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
480 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
481 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
482 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
484 extern BOOL string_vformat(uschar *, int, const char *, va_list);
485 extern int strcmpic(const uschar *, const uschar *);
486 extern int strncmpic(const uschar *, const uschar *, int);
487 extern uschar *strstric(uschar *, uschar *, BOOL);
489 #ifdef EXIM_TFO_PROBE
490 extern void tfo_probe(void);
492 extern void timesince(struct timeval * diff, struct timeval * then);
493 extern void tls_modify_variables(tls_support *);
494 extern uschar *tod_stamp(int);
496 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
497 BOOL *, oicf, void*);
498 extern void transport_init(void);
499 extern void transport_do_pass_socket(const uschar *, const uschar *,
500 const uschar *, uschar *, int);
501 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
503 extern uschar *transport_rcpt_address(address_item *, BOOL);
504 extern BOOL transport_set_up_command(const uschar ***, uschar *,
505 BOOL, int, address_item *, uschar *, uschar **);
506 extern void transport_update_waiting(host_item *, uschar *);
507 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
508 extern void transport_write_reset(int);
509 extern BOOL transport_write_string(int, const char *, ...);
510 extern BOOL transport_headers_send(transport_ctx *,
511 BOOL (*)(transport_ctx *, uschar *, int));
512 extern void transport_show_supported(FILE *);
513 extern BOOL transport_write_message(transport_ctx *, int);
514 extern void tree_add_duplicate(uschar *, address_item *);
515 extern void tree_add_nonrecipient(uschar *);
516 extern void tree_add_unusable(host_item *);
517 extern int tree_insertnode(tree_node **, tree_node *);
518 extern tree_node *tree_search(tree_node *, const uschar *);
519 extern void tree_write(tree_node *, FILE *);
520 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
522 #ifdef WITH_CONTENT_SCAN
523 extern void unspool_mbox(void);
526 extern void utf8_version_report(FILE *);
529 extern int verify_address(address_item *, FILE *, int, int, int, int,
530 uschar *, uschar *, BOOL *);
531 extern int verify_check_dnsbl(int, const uschar **, uschar **);
532 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
533 uschar *, uschar *, int, int *);
534 extern int verify_check_headers(uschar **);
535 extern int verify_check_header_names_ascii(uschar **);
536 extern int verify_check_host(uschar **);
537 extern int verify_check_notblind(void);
538 extern int verify_check_given_host(uschar **, host_item *);
539 extern int verify_check_this_host(const uschar **, unsigned int *,
540 const uschar*, const uschar *, const uschar **);
541 extern address_item *verify_checked_sender(uschar *);
542 extern void verify_get_ident(int);
543 extern BOOL verify_sender(int *, uschar **);
544 extern BOOL verify_sender_preliminary(int *, uschar **);
545 extern void version_init(void);
547 extern BOOL write_chunk(transport_ctx *, uschar *, int);
548 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
553 /* End of functions.h */