4193caccbd2c3f9e0d4c3b6587ea9fe1f0137bcf
[exim.git] / src / src / functions.h
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
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 gstring *call_perl_cat(gstring *, 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 BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
48 void *, tls_support *, uschar **);
49
50 extern void tls_close(void *, int);
51 extern BOOL tls_could_read(void);
52 extern int tls_export_cert(uschar *, size_t, void *);
53 extern int tls_feof(void);
54 extern int tls_ferror(void);
55 extern void tls_free_cert(void **);
56 extern int tls_getc(unsigned);
57 extern uschar *tls_getbuf(unsigned *);
58 extern void tls_get_cache(void);
59 extern int tls_import_cert(const uschar *, void **);
60 extern int tls_read(void *, uschar *, size_t);
61 extern int tls_server_start(const uschar *, uschar **);
62 extern BOOL tls_smtp_buffered(void);
63 extern int tls_ungetc(int);
64 extern int tls_write(void *, const uschar *, size_t, BOOL);
65 extern uschar *tls_validate_require_cipher(void);
66 extern void tls_version_report(FILE *);
67 # ifndef USE_GNUTLS
68 extern BOOL tls_openssl_options_parse(uschar *, long *);
69 # endif
70 extern uschar * tls_field_from_dn(uschar *, const uschar *);
71 extern BOOL tls_is_name_for_cert(const uschar *, void *);
72
73 # ifdef SUPPORT_DANE
74 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
75 # endif
76
77 #endif /*SUPPORT_TLS*/
78
79
80 /* Everything else... */
81
82 extern acl_block *acl_read(uschar *(*)(void), uschar **);
83 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
84 extern int acl_eval(int, uschar *, uschar **, uschar **);
85
86 extern tree_node *acl_var_create(uschar *);
87 extern void acl_var_write(uschar *, uschar *, void *);
88
89 #ifdef EXPERIMENTAL_ARC
90 extern void *arc_ams_setup_sign_bodyhash(void);
91 extern const uschar *arc_header_feed(gstring *, BOOL);
92 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
93 extern void arc_sign_init(void);
94 extern const uschar *acl_verify_arc(void);
95 extern uschar * fn_arc_domains(void);
96 #endif
97
98 extern void assert_no_variables(void *, int, const char *, int);
99 extern int auth_call_pam(const uschar *, uschar **);
100 extern int auth_call_pwcheck(uschar *, uschar **);
101 extern int auth_call_radius(const uschar *, uschar **);
102 extern int auth_call_saslauthd(const uschar *, const uschar *,
103 const uschar *, const uschar *, uschar **);
104 extern int auth_check_serv_cond(auth_instance *);
105 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
106 extern int auth_client_item(void *, auth_instance *, const uschar **,
107 unsigned, int, uschar *, int);
108
109
110 extern int auth_get_data(uschar **, const uschar *, int);
111 extern int auth_get_no64_data(uschar **, uschar *);
112 extern int auth_prompt(const uschar *);
113 extern int auth_read_input(const uschar *);
114 extern void auth_show_supported(FILE *);
115 extern uschar *auth_xtextencode(uschar *, int);
116 extern int auth_xtextdecode(uschar *, uschar **);
117
118 #ifdef EXPERIMENTAL_ARC
119 extern gstring *authres_arc(gstring *);
120 #endif
121 #ifndef DISABLE_DKIM
122 extern gstring *authres_dkim(gstring *);
123 #endif
124 #ifdef EXPERIMENTAL_DMARC
125 extern gstring *authres_dmarc(gstring *);
126 #endif
127 extern gstring *authres_smtpauth(gstring *);
128 #ifdef SUPPORT_SPF
129 extern gstring *authres_spf(gstring *);
130 #endif
131
132 extern uschar *b64encode(const uschar *, int);
133 extern int b64decode(const uschar *, uschar **);
134 extern int bdat_getc(unsigned);
135 extern uschar *bdat_getbuf(unsigned *);
136 extern int bdat_ungetc(int);
137 extern void bdat_flush_data(void);
138
139 extern void bits_clear(unsigned int *, size_t, int *);
140 extern void bits_set(unsigned int *, size_t, int *);
141
142 extern void cancel_cutthrough_connection(BOOL, const uschar *);
143 extern int check_host(void *, const uschar *, const uschar **, uschar **);
144 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
145 extern pid_t child_open_uid(const uschar **, const uschar **, int,
146 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
147 extern BOOL cleanup_environment(void);
148 extern void cutthrough_data_puts(uschar *, int);
149 extern void cutthrough_data_put_nl(void);
150 extern uschar *cutthrough_finaldot(void);
151 extern BOOL cutthrough_flush_send(void);
152 extern BOOL cutthrough_headers_send(void);
153 extern BOOL cutthrough_predata(void);
154 extern void release_cutthrough_connection(const uschar *);
155
156 extern void daemon_go(void);
157
158 #ifdef EXPERIMENTAL_DCC
159 extern int dcc_process(uschar **);
160 #endif
161
162 extern void debug_logging_activate(uschar *, uschar *);
163 extern void debug_logging_stop(void);
164 extern void debug_print_argv(const uschar **);
165 extern void debug_print_ids(uschar *);
166 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
167 extern void debug_print_string(uschar *);
168 extern void debug_print_tree(tree_node *);
169 extern void debug_vprintf(int, const char *, va_list);
170 extern void decode_bits(unsigned int *, size_t, int *,
171 uschar *, bit_table *, int, uschar *, int);
172 extern address_item *deliver_make_addr(uschar *, BOOL);
173 extern void deliver_init(void);
174 extern void delivery_log(int, address_item *, int, uschar *);
175 extern int deliver_message(uschar *, BOOL, BOOL);
176 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
177 extern void deliver_set_expansions(address_item *);
178 extern int deliver_split_address(address_item *);
179 extern void deliver_succeeded(address_item *);
180
181 extern uschar *deliver_get_sender_address (uschar *id);
182 extern void delivery_re_exec(int);
183
184 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
185 #ifndef DISABLE_DKIM
186 extern uschar *dkim_exim_query_dns_txt(uschar *);
187 extern void dkim_exim_sign_init(void);
188
189 extern BOOL dkim_transport_write_message(transport_ctx *,
190 struct ob_dkim *, const uschar ** errstr);
191 #endif
192 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
193 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
194 extern void dns_build_reverse(const uschar *, uschar *);
195 extern void dns_init(BOOL, BOOL, BOOL);
196 extern BOOL dns_is_aa(const dns_answer *);
197 extern BOOL dns_is_secure(const dns_answer *);
198 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
199 extern void dns_pattern_init(void);
200 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
201 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
202 extern uschar *dns_text_type(int);
203 extern void dscp_list_to_stream(FILE *);
204 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
205
206 extern void enq_end(uschar *);
207 extern BOOL enq_start(uschar *, unsigned);
208 #ifndef DISABLE_EVENT
209 extern uschar *event_raise(uschar *, const uschar *, uschar *);
210 extern void msg_event_raise(const uschar *, const address_item *);
211 #endif
212 extern const uschar * exim_errstr(int);
213 extern void exim_exit(int, const uschar *);
214 extern void exim_nullstd(void);
215 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
216 extern void exim_wait_tick(struct timeval *, int);
217 extern int exp_bool(address_item *addr,
218 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
219 uschar *svalue, BOOL *rvalue);
220 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
221 extern uschar *expand_file_big_buffer(const uschar *);
222 extern uschar *expand_string(uschar *); /* public, cannot make const */
223 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
224 extern uschar *expand_hide_passwords(uschar * );
225 extern uschar *expand_string_copy(const uschar *);
226 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
227 extern void modify_variable(uschar *, void *);
228
229 extern BOOL fd_ready(int, int);
230
231 extern int filter_interpret(uschar *, int, address_item **, uschar **);
232 extern BOOL filter_personal(string_item *, BOOL);
233 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
234 extern BOOL filter_system_interpret(address_item **, uschar **);
235
236 extern uschar * fn_hdrs_added(void);
237
238 extern void gstring_reset_unused(gstring *);
239
240 extern void header_add(int, const char *, ...);
241 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
242 extern int header_checkname(header_line *, BOOL);
243 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
244 extern int host_address_extract_port(uschar *);
245 extern uschar *host_and_ident(BOOL);
246 extern int host_aton(const uschar *, int *);
247 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
248 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
249 extern void host_build_log_info(void);
250 extern void host_build_sender_fullhost(void);
251 extern int host_find_byname(host_item *, const uschar *, int,
252 const uschar **, BOOL);
253 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
254 uschar *, const dnssec_domains *, const uschar **, BOOL *);
255 extern ip_address_item *host_find_interfaces(void);
256 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
257 extern BOOL host_is_tls_on_connect_port(int);
258 extern int host_item_get_port(host_item *);
259 extern void host_mask(int, int *, int);
260 extern int host_name_lookup(void);
261 extern int host_nmtoa(int, int *, int, uschar *, int);
262 extern uschar *host_ntoa(int, const void *, uschar *, int *);
263 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
264
265 extern uschar *imap_utf7_encode(uschar *, const uschar *,
266 uschar, uschar *, uschar **);
267
268 extern void invert_address(uschar *, uschar *);
269 extern int ip_addr(void *, int, const uschar *, int);
270 extern int ip_bind(int, int, uschar *, int);
271 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
272 extern int ip_connectedsocket(int, const uschar *, int, int,
273 int, host_item *, uschar **, const blob *);
274 extern int ip_get_address_family(int);
275 extern void ip_keepalive(int, const uschar *, BOOL);
276 extern int ip_recv(client_conn_ctx *, uschar *, int, int);
277 extern int ip_socket(int, int);
278
279 extern int ip_tcpsocket(const uschar *, uschar **, int);
280 extern int ip_unixsocket(const uschar *, uschar **);
281 extern int ip_streamsocket(const uschar *, uschar **, int);
282
283 extern int ipv6_nmtoa(int *, uschar *);
284
285 extern uschar *local_part_quote(uschar *);
286 extern int log_create(uschar *);
287 extern int log_create_as_exim(uschar *);
288 extern void log_close_all(void);
289
290 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
291 extern BOOL macro_read_assignment(uschar *);
292 extern uschar *macros_expand(int, int *, BOOL *);
293 extern void mainlog_close(void);
294 #ifdef WITH_CONTENT_SCAN
295 extern int malware(const uschar *, int);
296 extern int malware_in_file(uschar *);
297 extern void malware_init(void);
298 extern void malware_show_supported(FILE *);
299 #endif
300 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
301 unsigned int *, int, int, const uschar **);
302 extern int match_address_list_basic(const uschar *, const uschar **, int);
303 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
304 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
305 const uschar *, const uschar **);
306 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
307 unsigned int *, int, BOOL, const uschar **);
308 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
309 const uschar **);
310 extern void md5_end(md5 *, const uschar *, int, uschar *);
311 extern void md5_mid(md5 *, const uschar *);
312 extern void md5_start(md5 *);
313 extern void millisleep(int);
314 #ifdef WITH_CONTENT_SCAN
315 struct mime_boundary_context;
316 extern int mime_acl_check(uschar *acl, FILE *f,
317 struct mime_boundary_context *, uschar **, uschar **);
318 extern int mime_decode(const uschar **);
319 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
320 extern int mime_regex(const uschar **);
321 extern void mime_set_anomaly(int);
322 #endif
323 extern uschar *moan_check_errorcopy(uschar *);
324 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
325 BOOL, uschar *);
326 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
327 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
328 header_line *, FILE *, uschar *);
329 extern void moan_tell_someone(uschar *, address_item *,
330 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
331 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
332 extern void moan_write_from(FILE *);
333 extern FILE *modefopen(const uschar *, const char *, mode_t);
334
335 extern int open_cutthrough_connection( address_item * addr );
336
337 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
338 BOOL);
339 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
340 const uschar *, uschar *, error_block **);
341 extern uschar *parse_find_address_end(uschar *, BOOL);
342 extern uschar *parse_find_at(uschar *);
343 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
344 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
345 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
346 extern uschar *parse_date_time(uschar *str, time_t *t);
347 extern int vaguely_random_number(int);
348 #ifdef SUPPORT_TLS
349 extern int vaguely_random_number_fallback(int);
350 #endif
351
352 extern BOOL queue_action(uschar *, int, uschar **, int, int);
353 extern void queue_check_only(void);
354 extern void queue_list(int, uschar **, int);
355 extern void queue_count(void);
356 extern void queue_run(uschar *, uschar *, BOOL);
357
358 extern int random_number(int);
359 extern const uschar *rc_to_string(int);
360 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
361 uschar *, uschar *, uschar *, ugid_block *, address_item **,
362 uschar **, error_block **, int *, uschar *);
363 extern int rda_is_filter(const uschar *);
364 extern BOOL readconf_depends(driver_instance *, uschar *);
365 extern void readconf_driver_init(uschar *, driver_instance **,
366 driver_info *, int, void *, int, optionlist *, int);
367 extern uschar *readconf_find_option(void *);
368 extern void readconf_main(BOOL);
369 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
370 extern BOOL readconf_print(uschar *, uschar *, BOOL);
371 extern uschar *readconf_printtime(int);
372 extern uschar *readconf_readname(uschar *, int, uschar *);
373 extern int readconf_readtime(const uschar *, int, BOOL);
374 extern void readconf_rest(void);
375 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
376 extern void readconf_save_config(const uschar *);
377 extern void read_message_body(BOOL);
378 extern void receive_bomb_out(uschar *, uschar *);
379 extern BOOL receive_check_fs(int);
380 extern BOOL receive_check_set_sender(uschar *);
381 extern BOOL receive_msg(BOOL);
382 extern int_eximarith_t receive_statvfs(BOOL, int *);
383 extern void receive_swallow_smtp(void);
384 #ifdef WITH_CONTENT_SCAN
385 extern int regex(const uschar **);
386 #endif
387 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
388 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
389 extern void retry_add_item(address_item *, uschar *, int);
390 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
391 uschar **, uschar **);
392 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
393 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
394 dbdata_retry *, time_t);
395 extern void retry_update(address_item **, address_item **, address_item **);
396 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
397 extern uschar *rewrite_address_qualify(uschar *, BOOL);
398 extern header_line *rewrite_header(header_line *,
399 const uschar *, const uschar *,
400 rewrite_rule *, int, BOOL);
401 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
402 rewrite_rule *);
403 extern void rewrite_test(uschar *);
404 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
405 uschar **);
406 extern int route_address(address_item *, address_item **, address_item **,
407 address_item **, address_item **, int);
408 extern int route_check_prefix(const uschar *, const uschar *);
409 extern int route_check_suffix(const uschar *, const uschar *);
410 extern BOOL route_findgroup(uschar *, gid_t *);
411 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
412 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
413 uschar **);
414 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
415 struct passwd **, uid_t *, uschar **);
416 extern void route_init(void);
417 extern void route_show_supported(FILE *);
418 extern void route_tidyup(void);
419
420 extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
421 int, int *);
422 extern int search_findtype(const uschar *, int);
423 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
424 int *);
425 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
426 extern void search_tidyup(void);
427 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
428 extern void sha1_end(hctx *, const uschar *, int, uschar *);
429 extern void sha1_mid(hctx *, const uschar *);
430 extern void sha1_start(hctx *);
431 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
432 uschar *, address_item **, uschar **);
433 extern void sigalrm_handler(int);
434 extern BOOL smtp_buffered(void);
435 extern void smtp_closedown(uschar *);
436 extern void smtp_command_timeout_exit(void);
437 extern void smtp_command_sigterm_exit(void);
438 extern void smtp_data_timeout_exit(void);
439 extern void smtp_data_sigint_exit(void);
440 extern uschar *smtp_cmd_hist(void);
441 extern int smtp_connect(smtp_connect_args *, const blob *);
442 extern int smtp_sock_connect(host_item *, int, int, uschar *,
443 transport_instance * tb, int, const blob *);
444 extern int smtp_feof(void);
445 extern int smtp_ferror(void);
446 extern uschar *smtp_get_connection_info(void);
447 extern BOOL smtp_get_interface(uschar *, int, address_item *,
448 uschar **, uschar *);
449 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
450 extern int smtp_getc(unsigned);
451 extern uschar *smtp_getbuf(unsigned *);
452 extern void smtp_get_cache(void);
453 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
454 extern void smtp_log_no_mail(void);
455 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
456 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int);
457 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
458 extern void smtp_reset(void *);
459 extern void smtp_respond(uschar *, int, BOOL, uschar *);
460 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
461 extern void smtp_port_for_connect(host_item *, int);
462 extern void smtp_send_prohibition_message(int, uschar *);
463 extern int smtp_setup_msg(void);
464 extern BOOL smtp_start_session(void);
465 extern int smtp_ungetc(int);
466 extern BOOL smtp_verify_helo(void);
467 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
468 #ifdef WITH_CONTENT_SCAN
469 extern int spam(const uschar **);
470 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
471 #endif
472 extern void spool_clear_header_globals(void);
473 extern uschar *spool_dname(const uschar *, uschar *);
474 extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
475 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
476 extern int spool_open_datafile(uschar *);
477 extern int spool_open_temp(uschar *);
478 extern int spool_read_header(uschar *, BOOL, BOOL);
479 extern uschar *spool_sname(const uschar *, uschar *);
480 extern int spool_write_header(uschar *, int, uschar **);
481 extern int stdin_getc(unsigned);
482 extern int stdin_feof(void);
483 extern int stdin_ferror(void);
484 extern int stdin_ungetc(int);
485 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
486 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
487 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
488 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
489 extern uschar *string_base62(unsigned long int);
490 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
491 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
492 extern int string_compare_by_pointer(const void *, const void *);
493 extern uschar *string_copy_dnsdomain(uschar *);
494 extern uschar *string_copy_malloc(const uschar *);
495 extern uschar *string_copylc(const uschar *);
496 extern uschar *string_copynlc(uschar *, int);
497 extern uschar *string_dequote(const uschar **);
498 extern gstring *string_fmt_append(gstring *, const char *, ...) ALMOST_PRINTF(2,3);
499 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
500 extern uschar *string_format_size(int, uschar *);
501 extern uschar *string_from_gstring(gstring *);
502 extern gstring *string_get(unsigned);
503 extern int string_interpret_escape(const uschar **);
504 extern int string_is_ip_address(const uschar *, int *);
505 #ifdef SUPPORT_I18N
506 extern BOOL string_is_utf8(const uschar *);
507 #endif
508 extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
509 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
510 extern const uschar *string_printing2(const uschar *, BOOL);
511 extern uschar *string_split_message(uschar *);
512 extern uschar *string_timediff(struct timeval *);
513 extern uschar *string_timesince(struct timeval *);
514 extern uschar *string_unprinting(uschar *);
515 #ifdef SUPPORT_I18N
516 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
517 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
518 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
519 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
520 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
521 #endif
522 extern gstring *string_vformat(gstring *, BOOL, const char *, va_list);
523 extern int strcmpic(const uschar *, const uschar *);
524 extern int strncmpic(const uschar *, const uschar *, int);
525 extern uschar *strstric(uschar *, uschar *, BOOL);
526
527 #ifdef EXIM_TFO_PROBE
528 extern void tfo_probe(void);
529 #endif
530 extern void timesince(struct timeval * diff, struct timeval * then);
531 extern void tls_modify_variables(tls_support *);
532 extern uschar *tod_stamp(int);
533
534 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
535 BOOL *, oicf, void*);
536 extern void transport_init(void);
537 extern void transport_do_pass_socket(const uschar *, const uschar *,
538 const uschar *, uschar *, int);
539 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
540 int);
541 extern uschar *transport_rcpt_address(address_item *, BOOL);
542 extern BOOL transport_set_up_command(const uschar ***, uschar *,
543 BOOL, int, address_item *, uschar *, uschar **);
544 extern void transport_update_waiting(host_item *, uschar *);
545 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
546 extern void transport_write_reset(int);
547 extern BOOL transport_write_string(int, const char *, ...);
548 extern BOOL transport_headers_send(transport_ctx *,
549 BOOL (*)(transport_ctx *, uschar *, int));
550 extern void transport_show_supported(FILE *);
551 extern BOOL transport_write_message(transport_ctx *, int);
552 extern void tree_add_duplicate(uschar *, address_item *);
553 extern void tree_add_nonrecipient(uschar *);
554 extern void tree_add_unusable(host_item *);
555 extern int tree_insertnode(tree_node **, tree_node *);
556 extern tree_node *tree_search(tree_node *, const uschar *);
557 extern void tree_write(tree_node *, FILE *);
558 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
559
560 #ifdef WITH_CONTENT_SCAN
561 extern void unspool_mbox(void);
562 #endif
563 #ifdef SUPPORT_I18N
564 extern void utf8_version_report(FILE *);
565 #endif
566
567 extern int verify_address(address_item *, FILE *, int, int, int, int,
568 uschar *, uschar *, BOOL *);
569 extern int verify_check_dnsbl(int, const uschar **, uschar **);
570 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
571 uschar *, uschar *, int, int *);
572 extern int verify_check_headers(uschar **);
573 extern int verify_check_header_names_ascii(uschar **);
574 extern int verify_check_host(uschar **);
575 extern int verify_check_notblind(BOOL);
576 extern int verify_check_given_host(const uschar **, const host_item *);
577 extern int verify_check_this_host(const uschar **, unsigned int *,
578 const uschar*, const uschar *, const uschar **);
579 extern address_item *verify_checked_sender(uschar *);
580 extern void verify_get_ident(int);
581 extern BOOL verify_sender(int *, uschar **);
582 extern BOOL verify_sender_preliminary(int *, uschar **);
583 extern void version_init(void);
584
585 extern BOOL write_chunk(transport_ctx *, uschar *, int);
586 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
587
588
589 /* vi: aw
590 */
591 /* End of functions.h */