f7173576b435ff4d832db2deb10841436bfb55da
[exim.git] / src / src / functions.h
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2017 */
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 **) WARN_UNUSED_RESULT;
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 uschar **);
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 *);
70 # ifndef USE_GNUTLS
71 extern BOOL tls_openssl_options_parse(uschar *, long *);
72 # endif
73 extern uschar * tls_field_from_dn(uschar *, const uschar *);
74 extern BOOL tls_is_name_for_cert(const uschar *, void *);
75
76 # ifdef EXPERIMENTAL_DANE
77 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
78 # endif
79
80 #endif /*SUPPORT_TLS*/
81
82
83 /* Everything else... */
84
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 **);
88
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);
99
100
101 extern int auth_get_data(uschar **, uschar *, int);
102 extern int auth_get_no64_data(uschar **, uschar *);
103 extern uschar *auth_xtextencode(uschar *, int);
104 extern int auth_xtextdecode(uschar *, uschar **);
105
106 extern uschar *b64encode(uschar *, int);
107 extern int b64decode(uschar *, uschar **);
108 extern int bdat_getc(unsigned);
109 extern uschar *bdat_getbuf(unsigned *);
110 extern int bdat_ungetc(int);
111 extern void bdat_flush_data(void);
112
113 extern void bits_clear(unsigned int *, size_t, int *);
114 extern void bits_set(unsigned int *, size_t, int *);
115
116 extern void cancel_cutthrough_connection(BOOL, const uschar *);
117 extern int check_host(void *, const uschar *, const uschar **, uschar **);
118 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
119 extern pid_t child_open_uid(const uschar **, const uschar **, int,
120 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
121 extern BOOL cleanup_environment(void);
122 extern void cutthrough_data_puts(uschar *, int);
123 extern void cutthrough_data_put_nl(void);
124 extern uschar *cutthrough_finaldot(void);
125 extern BOOL cutthrough_flush_send(void);
126 extern BOOL cutthrough_headers_send(void);
127 extern BOOL cutthrough_predata(void);
128 extern void release_cutthrough_connection(const uschar *);
129
130 extern void daemon_go(void);
131
132 #ifdef EXPERIMENTAL_DCC
133 extern int dcc_process(uschar **);
134 #endif
135
136 extern void debug_logging_activate(uschar *, uschar *);
137 extern void debug_logging_stop(void);
138 extern void debug_print_argv(const uschar **);
139 extern void debug_print_ids(uschar *);
140 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
141 extern void debug_print_string(uschar *);
142 extern void debug_print_tree(tree_node *);
143 extern void debug_vprintf(int, const char *, va_list);
144 extern void decode_bits(unsigned int *, size_t, int *,
145 uschar *, bit_table *, int, uschar *, int);
146 extern address_item *deliver_make_addr(uschar *, BOOL);
147 extern void deliver_init(void);
148 extern void delivery_log(int, address_item *, int, uschar *);
149 extern int deliver_message(uschar *, BOOL, BOOL);
150 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
151 extern void deliver_set_expansions(address_item *);
152 extern int deliver_split_address(address_item *);
153 extern void deliver_succeeded(address_item *);
154
155 extern uschar *deliver_get_sender_address (uschar *id);
156 extern void delivery_re_exec(int);
157
158 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
159 #ifndef DISABLE_DKIM
160 extern BOOL dkim_transport_write_message(transport_ctx *,
161 struct ob_dkim *, const uschar ** errstr);
162 #endif
163 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
164 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
165 extern void dns_build_reverse(const uschar *, uschar *);
166 extern void dns_init(BOOL, BOOL, BOOL);
167 extern BOOL dns_is_aa(const dns_answer *);
168 extern BOOL dns_is_secure(const dns_answer *);
169 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
170 extern void dns_pattern_init(void);
171 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
172 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
173 extern uschar *dns_text_type(int);
174 extern void dscp_list_to_stream(FILE *);
175 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
176
177 extern void enq_end(uschar *);
178 extern BOOL enq_start(uschar *, unsigned);
179 #ifndef DISABLE_EVENT
180 extern uschar *event_raise(uschar *, const uschar *, uschar *);
181 extern void msg_event_raise(const uschar *, const address_item *);
182 #endif
183 extern const uschar * exim_errstr(int);
184 extern void exim_exit(int);
185 extern void exim_nullstd(void);
186 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
187 extern int exim_tvcmp(struct timeval *, struct timeval *);
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 *);
199
200 extern BOOL fd_ready(int, int);
201
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 **);
206
207 extern uschar * fn_hdrs_added(void);
208
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 *);
232
233 extern uschar *imap_utf7_encode(uschar *, const uschar *,
234 uschar, uschar *, uschar **);
235
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, BOOL);
240 extern int ip_connectedsocket(int, const uschar *, int, int,
241 int, host_item *, uschar **);
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);
246
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);
250
251 extern int ipv6_nmtoa(int *, uschar *);
252
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);
257
258 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
259 extern void mainlog_close(void);
260 #ifdef WITH_CONTENT_SCAN
261 extern int malware(const uschar *, int);
262 extern int malware_in_file(uschar *);
263 extern void malware_init(void);
264 #endif
265 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
266 unsigned int *, int, int, const uschar **);
267 extern int match_address_list_basic(const uschar *, const uschar **, int);
268 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
269 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
270 const uschar *, const uschar **);
271 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
272 unsigned int *, int, BOOL, const uschar **);
273 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
274 const uschar **);
275 extern void md5_end(md5 *, const uschar *, int, uschar *);
276 extern void md5_mid(md5 *, const uschar *);
277 extern void md5_start(md5 *);
278 extern void millisleep(int);
279 #ifdef WITH_CONTENT_SCAN
280 struct mime_boundary_context;
281 extern int mime_acl_check(uschar *acl, FILE *f,
282 struct mime_boundary_context *, uschar **, uschar **);
283 extern int mime_decode(const uschar **);
284 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
285 extern int mime_regex(const uschar **);
286 extern void mime_set_anomaly(int);
287 #endif
288 extern uschar *moan_check_errorcopy(uschar *);
289 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
290 BOOL, uschar *);
291 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
292 extern void moan_tell_someone(uschar *, address_item *,
293 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
294 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
295 extern void moan_write_from(FILE *);
296 extern FILE *modefopen(const uschar *, const char *, mode_t);
297
298 extern int open_cutthrough_connection( address_item * addr );
299
300 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
301 BOOL);
302 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
303 const uschar *, uschar *, error_block **);
304 extern uschar *parse_find_address_end(uschar *, BOOL);
305 extern uschar *parse_find_at(uschar *);
306 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
307 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
308 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
309 extern uschar *parse_date_time(uschar *str, time_t *t);
310 extern int vaguely_random_number(int);
311 #ifdef SUPPORT_TLS
312 extern int vaguely_random_number_fallback(int);
313 #endif
314
315 extern BOOL queue_action(uschar *, int, uschar **, int, int);
316 extern void queue_check_only(void);
317 extern void queue_list(int, uschar **, int);
318 extern void queue_count(void);
319 extern void queue_run(uschar *, uschar *, BOOL);
320
321 extern int random_number(int);
322 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
323 uschar *, uschar *, uschar *, ugid_block *, address_item **,
324 uschar **, error_block **, int *, uschar *);
325 extern int rda_is_filter(const uschar *);
326 extern BOOL readconf_depends(driver_instance *, uschar *);
327 extern void readconf_driver_init(uschar *, driver_instance **,
328 driver_info *, int, void *, int, optionlist *, int);
329 extern uschar *readconf_find_option(void *);
330 extern void readconf_main(BOOL);
331 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
332 extern void readconf_print(uschar *, uschar *, BOOL);
333 extern uschar *readconf_printtime(int);
334 extern uschar *readconf_readname(uschar *, int, uschar *);
335 extern int readconf_readtime(const uschar *, int, BOOL);
336 extern void readconf_rest(void);
337 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
338 extern void readconf_save_config(const uschar *);
339 extern void read_message_body(BOOL);
340 extern void receive_bomb_out(uschar *, uschar *);
341 extern BOOL receive_check_fs(int);
342 extern BOOL receive_check_set_sender(uschar *);
343 extern BOOL receive_msg(BOOL);
344 extern int receive_statvfs(BOOL, int *);
345 extern void receive_swallow_smtp(void);
346 #ifdef WITH_CONTENT_SCAN
347 extern int regex(const uschar **);
348 #endif
349 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
350 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
351 extern void retry_add_item(address_item *, uschar *, int);
352 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
353 uschar **, uschar **);
354 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
355 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
356 dbdata_retry *, time_t);
357 extern void retry_update(address_item **, address_item **, address_item **);
358 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
359 extern uschar *rewrite_address_qualify(uschar *, BOOL);
360 extern header_line *rewrite_header(header_line *,
361 const uschar *, const uschar *,
362 rewrite_rule *, int, BOOL);
363 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
364 rewrite_rule *);
365 extern void rewrite_test(uschar *);
366 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
367 uschar **);
368 extern int route_address(address_item *, address_item **, address_item **,
369 address_item **, address_item **, int);
370 extern int route_check_prefix(const uschar *, const uschar *);
371 extern int route_check_suffix(const uschar *, const uschar *);
372 extern BOOL route_findgroup(uschar *, gid_t *);
373 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
374 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
375 uschar **);
376 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
377 struct passwd **, uid_t *, uschar **);
378 extern void route_init(void);
379 extern void route_tidyup(void);
380
381 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
382 int, int *);
383 extern int search_findtype(const uschar *, int);
384 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
385 int *);
386 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
387 extern void search_tidyup(void);
388 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
389 extern void sha1_end(hctx *, const uschar *, int, uschar *);
390 extern void sha1_mid(hctx *, const uschar *);
391 extern void sha1_start(hctx *);
392 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
393 uschar *, address_item **, uschar **);
394 extern void sigalrm_handler(int);
395 extern BOOL smtp_buffered(void);
396 extern void smtp_closedown(uschar *);
397 extern int smtp_connect(host_item *, int, uschar *, int,
398 transport_instance *);
399 extern int smtp_sock_connect(host_item *, int, int, uschar *,
400 transport_instance * tb, int);
401 extern int smtp_feof(void);
402 extern int smtp_ferror(void);
403 extern uschar *smtp_get_connection_info(void);
404 extern BOOL smtp_get_interface(uschar *, int, address_item *,
405 uschar **, uschar *);
406 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
407 extern int smtp_getc(unsigned);
408 extern uschar *smtp_getbuf(unsigned *);
409 extern void smtp_get_cache(void);
410 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
411 extern void smtp_log_no_mail(void);
412 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
413 extern void smtp_proxy_tls(uschar *, size_t, int, int);
414 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
415 extern void smtp_respond(uschar *, int, BOOL, uschar *);
416 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
417 extern void smtp_port_for_connect(host_item *, int);
418 extern void smtp_send_prohibition_message(int, uschar *);
419 extern int smtp_setup_msg(void);
420 extern BOOL smtp_start_session(void);
421 extern int smtp_ungetc(int);
422 extern BOOL smtp_verify_helo(void);
423 extern int smtp_write_command(smtp_outblock *, int, const char *, ...) PRINTF_FUNCTION(3,4);
424 #ifdef WITH_CONTENT_SCAN
425 extern int spam(const uschar **);
426 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
427 #endif
428 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
429 extern uschar *spool_dname(const uschar *, uschar *);
430 extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
431 extern uschar *spool_sname(const uschar *, uschar *);
432 extern int spool_open_datafile(uschar *);
433 extern int spool_open_temp(uschar *);
434 extern int spool_read_header(uschar *, BOOL, BOOL);
435 extern int spool_write_header(uschar *, int, uschar **);
436 extern int stdin_getc(unsigned);
437 extern int stdin_feof(void);
438 extern int stdin_ferror(void);
439 extern int stdin_ungetc(int);
440 extern uschar *string_append(uschar *, int *, int *, int, ...) WARN_UNUSED_RESULT;
441 extern uschar *string_append_listele(uschar *, int *, int *, uschar, const uschar *) WARN_UNUSED_RESULT;
442 extern uschar *string_append_listele_n(uschar *, int *, int *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
443 extern uschar *string_base62(unsigned long int);
444 extern uschar *string_cat(uschar *, int *, int *, const uschar *) WARN_UNUSED_RESULT;
445 extern uschar *string_catn(uschar *, int *, int *, const uschar *, int) WARN_UNUSED_RESULT;
446 extern int string_compare_by_pointer(const void *, const void *);
447 extern uschar *string_copy_dnsdomain(uschar *);
448 extern uschar *string_copy_malloc(const uschar *);
449 extern uschar *string_copylc(const uschar *);
450 extern uschar *string_copynlc(uschar *, int);
451 extern uschar *string_dequote(const uschar **);
452 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
453 extern uschar *string_format_size(int, uschar *);
454 extern int string_interpret_escape(const uschar **);
455 extern int string_is_ip_address(const uschar *, int *);
456 #ifdef SUPPORT_I18N
457 extern BOOL string_is_utf8(const uschar *);
458 #endif
459 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
460 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
461 extern const uschar *string_printing2(const uschar *, BOOL);
462 extern uschar *string_split_message(uschar *);
463 extern uschar *string_unprinting(uschar *);
464 #ifdef SUPPORT_I18N
465 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
466 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
467 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
468 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
469 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
470 #endif
471 extern BOOL string_vformat(uschar *, int, const char *, va_list);
472 extern int strcmpic(const uschar *, const uschar *);
473 extern int strncmpic(const uschar *, const uschar *, int);
474 extern uschar *strstric(uschar *, uschar *, BOOL);
475
476 extern uschar *tod_stamp(int);
477
478 extern void tls_modify_variables(tls_support *);
479 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
480 BOOL *, oicf, void*);
481 extern void transport_init(void);
482 extern void transport_do_pass_socket(const uschar *, const uschar *,
483 const uschar *, uschar *, int);
484 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
485 int);
486 extern uschar *transport_rcpt_address(address_item *, BOOL);
487 extern BOOL transport_set_up_command(const uschar ***, uschar *,
488 BOOL, int, address_item *, uschar *, uschar **);
489 extern void transport_update_waiting(host_item *, uschar *);
490 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
491 extern void transport_write_reset(int);
492 extern BOOL transport_write_string(int, const char *, ...);
493 extern BOOL transport_headers_send(transport_ctx *,
494 BOOL (*)(transport_ctx *, uschar *, int));
495 extern BOOL transport_write_message(transport_ctx *, int);
496 extern void tree_add_duplicate(uschar *, address_item *);
497 extern void tree_add_nonrecipient(uschar *);
498 extern void tree_add_unusable(host_item *);
499 extern int tree_insertnode(tree_node **, tree_node *);
500 extern tree_node *tree_search(tree_node *, const uschar *);
501 extern void tree_write(tree_node *, FILE *);
502 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
503
504 #ifdef WITH_CONTENT_SCAN
505 extern void unspool_mbox(void);
506 #endif
507 #ifdef SUPPORT_I18N
508 extern void utf8_version_report(FILE *);
509 #endif
510
511 extern int verify_address(address_item *, FILE *, int, int, int, int,
512 uschar *, uschar *, BOOL *);
513 extern int verify_check_dnsbl(int, const uschar **, uschar **);
514 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
515 uschar *, uschar *, int, int *);
516 extern int verify_check_headers(uschar **);
517 extern int verify_check_header_names_ascii(uschar **);
518 extern int verify_check_host(uschar **);
519 extern int verify_check_notblind(void);
520 extern int verify_check_given_host(uschar **, host_item *);
521 extern int verify_check_this_host(const uschar **, unsigned int *,
522 const uschar*, const uschar *, const uschar **);
523 extern address_item *verify_checked_sender(uschar *);
524 extern void verify_get_ident(int);
525 extern BOOL verify_sender(int *, uschar **);
526 extern BOOL verify_sender_preliminary(int *, uschar **);
527 extern void version_init(void);
528
529 extern BOOL write_chunk(transport_ctx *, uschar *, int);
530 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
531
532 /* vi: aw
533 */
534 /* End of functions.h */