1b7aff08372d4260904a04c578235c765205c31e
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
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
*,
53 extern void tls_close(BOOL
, int);
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 *);
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 *);
92 #ifdef EXPERIMENTAL_ARC
93 extern void *arc_ams_setup_sign_bodyhash(void);
94 extern const uschar
*arc_header_feed(gstring
*, BOOL
);
95 extern gstring
*arc_sign(const uschar
*, gstring
*, uschar
**);
96 extern const uschar
*acl_verify_arc(void);
99 extern void assert_no_variables(void *, int, const char *, int);
100 extern int auth_call_pam(const uschar
*, uschar
**);
101 extern int auth_call_pwcheck(uschar
*, uschar
**);
102 extern int auth_call_radius(const uschar
*, uschar
**);
103 extern int auth_call_saslauthd(const uschar
*, const uschar
*,
104 const uschar
*, const uschar
*, uschar
**);
105 extern int auth_check_serv_cond(auth_instance
*);
106 extern int auth_check_some_cond(auth_instance
*, uschar
*, uschar
*, int);
109 extern int auth_get_data(uschar
**, uschar
*, int);
110 extern int auth_get_no64_data(uschar
**, uschar
*);
111 extern void auth_show_supported(FILE *);
112 extern uschar
*auth_xtextencode(uschar
*, int);
113 extern int auth_xtextdecode(uschar
*, uschar
**);
115 #ifdef EXPERIMENTAL_ARC
116 extern gstring
*authres_arc(gstring
*);
119 extern gstring
*authres_dkim(gstring
*);
121 #ifdef EXPERIMENTAL_DMARC
122 extern gstring
*authres_dmarc(gstring
*);
124 extern gstring
*authres_smtpauth(gstring
*);
126 extern gstring
*authres_spf(gstring
*);
129 extern uschar
*b64encode(uschar
*, int);
130 extern int b64decode(const uschar
*, uschar
**);
131 extern int bdat_getc(unsigned);
132 extern uschar
*bdat_getbuf(unsigned *);
133 extern int bdat_ungetc(int);
134 extern void bdat_flush_data(void);
136 extern void bits_clear(unsigned int *, size_t, int *);
137 extern void bits_set(unsigned int *, size_t, int *);
139 extern void cancel_cutthrough_connection(BOOL
, const uschar
*);
140 extern int check_host(void *, const uschar
*, const uschar
**, uschar
**);
141 extern uschar
**child_exec_exim(int, BOOL
, int *, BOOL
, int, ...);
142 extern pid_t
child_open_uid(const uschar
**, const uschar
**, int,
143 uid_t
*, gid_t
*, int *, int *, uschar
*, BOOL
);
144 extern BOOL
cleanup_environment(void);
145 extern void cutthrough_data_puts(uschar
*, int);
146 extern void cutthrough_data_put_nl(void);
147 extern uschar
*cutthrough_finaldot(void);
148 extern BOOL
cutthrough_flush_send(void);
149 extern BOOL
cutthrough_headers_send(void);
150 extern BOOL
cutthrough_predata(void);
151 extern void release_cutthrough_connection(const uschar
*);
153 extern void daemon_go(void);
155 #ifdef EXPERIMENTAL_DCC
156 extern int dcc_process(uschar
**);
159 extern void debug_logging_activate(uschar
*, uschar
*);
160 extern void debug_logging_stop(void);
161 extern void debug_print_argv(const uschar
**);
162 extern void debug_print_ids(uschar
*);
163 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
164 extern void debug_print_string(uschar
*);
165 extern void debug_print_tree(tree_node
*);
166 extern void debug_vprintf(int, const char *, va_list);
167 extern void decode_bits(unsigned int *, size_t, int *,
168 uschar
*, bit_table
*, int, uschar
*, int);
169 extern address_item
*deliver_make_addr(uschar
*, BOOL
);
170 extern void deliver_init(void);
171 extern void delivery_log(int, address_item
*, int, uschar
*);
172 extern int deliver_message(uschar
*, BOOL
, BOOL
);
173 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
174 extern void deliver_set_expansions(address_item
*);
175 extern int deliver_split_address(address_item
*);
176 extern void deliver_succeeded(address_item
*);
178 extern uschar
*deliver_get_sender_address (uschar
*id
);
179 extern void delivery_re_exec(int);
181 extern BOOL
directory_make(const uschar
*, const uschar
*, int, BOOL
);
183 extern uschar
*dkim_exim_query_dns_txt(uschar
*);
184 extern void dkim_exim_sign_init(void);
186 extern BOOL
dkim_transport_write_message(transport_ctx
*,
187 struct ob_dkim
*, const uschar
** errstr
);
189 extern dns_address
*dns_address_from_rr(dns_answer
*, dns_record
*);
190 extern int dns_basic_lookup(dns_answer
*, const uschar
*, int);
191 extern void dns_build_reverse(const uschar
*, uschar
*);
192 extern void dns_init(BOOL
, BOOL
, BOOL
);
193 extern BOOL
dns_is_aa(const dns_answer
*);
194 extern BOOL
dns_is_secure(const dns_answer
*);
195 extern int dns_lookup(dns_answer
*, const uschar
*, int, const uschar
**);
196 extern void dns_pattern_init(void);
197 extern int dns_special_lookup(dns_answer
*, const uschar
*, int, const uschar
**);
198 extern dns_record
*dns_next_rr(const dns_answer
*, dns_scan
*, int);
199 extern uschar
*dns_text_type(int);
200 extern void dscp_list_to_stream(FILE *);
201 extern BOOL
dscp_lookup(const uschar
*, int, int *, int *, int *);
203 extern void enq_end(uschar
*);
204 extern BOOL
enq_start(uschar
*, unsigned);
205 #ifndef DISABLE_EVENT
206 extern uschar
*event_raise(uschar
*, const uschar
*, uschar
*);
207 extern void msg_event_raise(const uschar
*, const address_item
*);
209 extern const uschar
* exim_errstr(int);
210 extern void exim_exit(int, const uschar
*);
211 extern void exim_nullstd(void);
212 extern void exim_setugid(uid_t
, gid_t
, BOOL
, uschar
*);
213 extern void exim_wait_tick(struct timeval
*, int);
214 extern int exp_bool(address_item
*addr
,
215 uschar
*mtype
, uschar
*mname
, unsigned dgb_opt
, uschar
*oname
, BOOL bvalue
,
216 uschar
*svalue
, BOOL
*rvalue
);
217 extern BOOL
expand_check_condition(uschar
*, uschar
*, uschar
*);
218 extern uschar
*expand_file_big_buffer(const uschar
*);
219 extern uschar
*expand_string(uschar
*); /* public, cannot make const */
220 extern const uschar
*expand_cstring(const uschar
*); /* ... so use this one */
221 extern uschar
*expand_hide_passwords(uschar
* );
222 extern uschar
*expand_string_copy(const uschar
*);
223 extern int_eximarith_t
expand_string_integer(uschar
*, BOOL
);
224 extern void modify_variable(uschar
*, void *);
226 extern BOOL
fd_ready(int, int);
228 extern int filter_interpret(uschar
*, int, address_item
**, uschar
**);
229 extern BOOL
filter_personal(string_item
*, BOOL
);
230 extern BOOL
filter_runtest(int, uschar
*, BOOL
, BOOL
);
231 extern BOOL
filter_system_interpret(address_item
**, uschar
**);
233 extern uschar
* fn_hdrs_added(void);
235 extern void gstring_reset_unused(gstring
*);
237 extern void header_add(int, const char *, ...);
238 extern int header_checkname(header_line
*, BOOL
);
239 extern BOOL
header_match(uschar
*, BOOL
, BOOL
, string_item
*, int, ...);
240 extern int host_address_extract_port(uschar
*);
241 extern uschar
*host_and_ident(BOOL
);
242 extern int host_aton(const uschar
*, int *);
243 extern void host_build_hostlist(host_item
**, const uschar
*, BOOL
);
244 extern ip_address_item
*host_build_ifacelist(const uschar
*, uschar
*);
245 extern void host_build_log_info(void);
246 extern void host_build_sender_fullhost(void);
247 extern int host_find_byname(host_item
*, const uschar
*, int,
248 const uschar
**, BOOL
);
249 extern int host_find_bydns(host_item
*, const uschar
*, int, uschar
*, uschar
*,
250 uschar
*, const dnssec_domains
*, const uschar
**, BOOL
*);
251 extern ip_address_item
*host_find_interfaces(void);
252 extern BOOL
host_is_in_net(const uschar
*, const uschar
*, int);
253 extern BOOL
host_is_tls_on_connect_port(int);
254 extern int host_item_get_port(host_item
*);
255 extern void host_mask(int, int *, int);
256 extern int host_name_lookup(void);
257 extern int host_nmtoa(int, int *, int, uschar
*, int);
258 extern uschar
*host_ntoa(int, const void *, uschar
*, int *);
259 extern int host_scan_for_local_hosts(host_item
*, host_item
**, BOOL
*);
261 extern uschar
*imap_utf7_encode(uschar
*, const uschar
*,
262 uschar
, uschar
*, uschar
**);
264 extern void invert_address(uschar
*, uschar
*);
265 extern int ip_addr(void *, int, const uschar
*, int);
266 extern int ip_bind(int, int, uschar
*, int);
267 extern int ip_connect(int, int, const uschar
*, int, int, const blob
*);
268 extern int ip_connectedsocket(int, const uschar
*, int, int,
269 int, host_item
*, uschar
**, const blob
*);
270 extern int ip_get_address_family(int);
271 extern void ip_keepalive(int, const uschar
*, BOOL
);
272 extern int ip_recv(int, uschar
*, int, int);
273 extern int ip_socket(int, int);
275 extern int ip_tcpsocket(const uschar
*, uschar
**, int);
276 extern int ip_unixsocket(const uschar
*, uschar
**);
277 extern int ip_streamsocket(const uschar
*, uschar
**, int);
279 extern int ipv6_nmtoa(int *, uschar
*);
281 extern uschar
*local_part_quote(uschar
*);
282 extern int log_create(uschar
*);
283 extern int log_create_as_exim(uschar
*);
284 extern void log_close_all(void);
286 extern macro_item
* macro_create(const uschar
*, const uschar
*, BOOL
);
287 extern BOOL
macro_read_assignment(uschar
*);
288 extern uschar
*macros_expand(int, int *, BOOL
*);
289 extern void mainlog_close(void);
290 #ifdef WITH_CONTENT_SCAN
291 extern int malware(const uschar
*, int);
292 extern int malware_in_file(uschar
*);
293 extern void malware_init(void);
294 extern void malware_show_supported(FILE *);
296 extern int match_address_list(const uschar
*, BOOL
, BOOL
, const uschar
**,
297 unsigned int *, int, int, const uschar
**);
298 extern int match_address_list_basic(const uschar
*, const uschar
**, int);
299 extern int match_check_list(const uschar
**, int, tree_node
**, unsigned int **,
300 int(*)(void *, const uschar
*, const uschar
**, uschar
**), void *, int,
301 const uschar
*, const uschar
**);
302 extern int match_isinlist(const uschar
*, const uschar
**, int, tree_node
**,
303 unsigned int *, int, BOOL
, const uschar
**);
304 extern int match_check_string(const uschar
*, const uschar
*, int, BOOL
, BOOL
, BOOL
,
306 extern void md5_end(md5
*, const uschar
*, int, uschar
*);
307 extern void md5_mid(md5
*, const uschar
*);
308 extern void md5_start(md5
*);
309 extern void millisleep(int);
310 #ifdef WITH_CONTENT_SCAN
311 struct mime_boundary_context
;
312 extern int mime_acl_check(uschar
*acl
, FILE *f
,
313 struct mime_boundary_context
*, uschar
**, uschar
**);
314 extern int mime_decode(const uschar
**);
315 extern ssize_t
mime_decode_base64(FILE *, FILE *, uschar
*);
316 extern int mime_regex(const uschar
**);
317 extern void mime_set_anomaly(int);
319 extern uschar
*moan_check_errorcopy(uschar
*);
320 extern BOOL
moan_skipped_syntax_errors(uschar
*, error_block
*, uschar
*,
322 extern void moan_smtp_batch(uschar
*, const char *, ...) PRINTF_FUNCTION(2,3);
323 extern void moan_tell_someone(uschar
*, address_item
*,
324 const uschar
*, const char *, ...) PRINTF_FUNCTION(4,5);
325 extern BOOL
moan_to_sender(int, error_block
*, header_line
*, FILE *, BOOL
);
326 extern void moan_write_from(FILE *);
327 extern FILE *modefopen(const uschar
*, const char *, mode_t
);
329 extern int open_cutthrough_connection( address_item
* addr
);
331 extern uschar
*parse_extract_address(uschar
*, uschar
**, int *, int *, int *,
333 extern int parse_forward_list(uschar
*, int, address_item
**, uschar
**,
334 const uschar
*, uschar
*, error_block
**);
335 extern uschar
*parse_find_address_end(uschar
*, BOOL
);
336 extern uschar
*parse_find_at(uschar
*);
337 extern const uschar
*parse_fix_phrase(const uschar
*, int, uschar
*, int);
338 extern uschar
*parse_message_id(uschar
*, uschar
**, uschar
**);
339 extern const uschar
*parse_quote_2047(const uschar
*, int, uschar
*, uschar
*, int, BOOL
);
340 extern uschar
*parse_date_time(uschar
*str
, time_t *t
);
341 extern int vaguely_random_number(int);
343 extern int vaguely_random_number_fallback(int);
346 extern BOOL
queue_action(uschar
*, int, uschar
**, int, int);
347 extern void queue_check_only(void);
348 extern void queue_list(int, uschar
**, int);
349 extern void queue_count(void);
350 extern void queue_run(uschar
*, uschar
*, BOOL
);
352 extern int random_number(int);
353 extern int rda_interpret(redirect_block
*, int, uschar
*, uschar
*,
354 uschar
*, uschar
*, uschar
*, ugid_block
*, address_item
**,
355 uschar
**, error_block
**, int *, uschar
*);
356 extern int rda_is_filter(const uschar
*);
357 extern BOOL
readconf_depends(driver_instance
*, uschar
*);
358 extern void readconf_driver_init(uschar
*, driver_instance
**,
359 driver_info
*, int, void *, int, optionlist
*, int);
360 extern uschar
*readconf_find_option(void *);
361 extern void readconf_main(BOOL
);
362 extern void readconf_options_from_list(optionlist
*, unsigned, const uschar
*, uschar
*);
363 extern BOOL
readconf_print(uschar
*, uschar
*, BOOL
);
364 extern uschar
*readconf_printtime(int);
365 extern uschar
*readconf_readname(uschar
*, int, uschar
*);
366 extern int readconf_readtime(const uschar
*, int, BOOL
);
367 extern void readconf_rest(void);
368 extern uschar
*readconf_retry_error(const uschar
*, const uschar
*, int *, int *);
369 extern void readconf_save_config(const uschar
*);
370 extern void read_message_body(BOOL
);
371 extern void receive_bomb_out(uschar
*, uschar
*);
372 extern BOOL
receive_check_fs(int);
373 extern BOOL
receive_check_set_sender(uschar
*);
374 extern BOOL
receive_msg(BOOL
);
375 extern int receive_statvfs(BOOL
, int *);
376 extern void receive_swallow_smtp(void);
377 #ifdef WITH_CONTENT_SCAN
378 extern int regex(const uschar
**);
380 extern BOOL
regex_match_and_setup(const pcre
*, const uschar
*, int, int);
381 extern const pcre
*regex_must_compile(const uschar
*, BOOL
, BOOL
);
382 extern void retry_add_item(address_item
*, uschar
*, int);
383 extern BOOL
retry_check_address(const uschar
*, host_item
*, uschar
*, BOOL
,
384 uschar
**, uschar
**);
385 extern retry_config
*retry_find_config(const uschar
*, const uschar
*, int, int);
386 extern BOOL
retry_ultimate_address_timeout(uschar
*, const uschar
*,
387 dbdata_retry
*, time_t);
388 extern void retry_update(address_item
**, address_item
**, address_item
**);
389 extern uschar
*rewrite_address(uschar
*, BOOL
, BOOL
, rewrite_rule
*, int);
390 extern uschar
*rewrite_address_qualify(uschar
*, BOOL
);
391 extern header_line
*rewrite_header(header_line
*,
392 const uschar
*, const uschar
*,
393 rewrite_rule
*, int, BOOL
);
394 extern uschar
*rewrite_one(uschar
*, int, BOOL
*, BOOL
, uschar
*,
396 extern void rewrite_test(uschar
*);
397 extern uschar
*rfc2047_decode2(uschar
*, BOOL
, uschar
*, int, int *, int *,
399 extern int route_address(address_item
*, address_item
**, address_item
**,
400 address_item
**, address_item
**, int);
401 extern int route_check_prefix(const uschar
*, const uschar
*);
402 extern int route_check_suffix(const uschar
*, const uschar
*);
403 extern BOOL
route_findgroup(uschar
*, gid_t
*);
404 extern BOOL
route_finduser(const uschar
*, struct passwd
**, uid_t
*);
405 extern BOOL
route_find_expanded_group(uschar
*, uschar
*, uschar
*, gid_t
*,
407 extern BOOL
route_find_expanded_user(uschar
*, uschar
*, uschar
*,
408 struct passwd
**, uid_t
*, uschar
**);
409 extern void route_init(void);
410 extern void route_show_supported(FILE *);
411 extern void route_tidyup(void);
413 extern uschar
*search_find(void *, uschar
*, uschar
*, int, const uschar
*, int,
415 extern int search_findtype(const uschar
*, int);
416 extern int search_findtype_partial(const uschar
*, int *, const uschar
**, int *,
418 extern void *search_open(uschar
*, int, int, uid_t
*, gid_t
*);
419 extern void search_tidyup(void);
420 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
421 extern void sha1_end(hctx
*, const uschar
*, int, uschar
*);
422 extern void sha1_mid(hctx
*, const uschar
*);
423 extern void sha1_start(hctx
*);
424 extern int sieve_interpret(uschar
*, int, uschar
*, uschar
*, uschar
*,
425 uschar
*, address_item
**, uschar
**);
426 extern void sigalrm_handler(int);
427 extern BOOL
smtp_buffered(void);
428 extern void smtp_closedown(uschar
*);
429 extern uschar
*smtp_cmd_hist(void);
430 extern int smtp_connect(host_item
*, int, uschar
*, int,
431 transport_instance
*);
432 extern int smtp_sock_connect(host_item
*, int, int, uschar
*,
433 transport_instance
* tb
, int, const blob
*);
434 extern int smtp_feof(void);
435 extern int smtp_ferror(void);
436 extern uschar
*smtp_get_connection_info(void);
437 extern BOOL
smtp_get_interface(uschar
*, int, address_item
*,
438 uschar
**, uschar
*);
439 extern BOOL
smtp_get_port(uschar
*, address_item
*, int *, uschar
*);
440 extern int smtp_getc(unsigned);
441 extern uschar
*smtp_getbuf(unsigned *);
442 extern void smtp_get_cache(void);
443 extern int smtp_handle_acl_fail(int, int, uschar
*, uschar
*);
444 extern void smtp_log_no_mail(void);
445 extern void smtp_message_code(uschar
**, int *, uschar
**, uschar
**, BOOL
);
446 extern void smtp_proxy_tls(uschar
*, size_t, int *, int);
447 extern BOOL
smtp_read_response(smtp_inblock
*, uschar
*, int, int, int);
448 extern void smtp_reset(void *);
449 extern void smtp_respond(uschar
*, int, BOOL
, uschar
*);
450 extern void smtp_notquit_exit(uschar
*, uschar
*, uschar
*, ...);
451 extern void smtp_port_for_connect(host_item
*, int);
452 extern void smtp_send_prohibition_message(int, uschar
*);
453 extern int smtp_setup_msg(void);
454 extern BOOL
smtp_start_session(void);
455 extern int smtp_ungetc(int);
456 extern BOOL
smtp_verify_helo(void);
457 extern int smtp_write_command(smtp_outblock
*, int, const char *, ...) PRINTF_FUNCTION(3,4);
458 #ifdef WITH_CONTENT_SCAN
459 extern int spam(const uschar
**);
460 extern FILE *spool_mbox(unsigned long *, const uschar
*, uschar
**);
462 extern void spool_clear_header_globals(void);
463 extern uschar
*spool_dname(const uschar
*, uschar
*);
464 extern uschar
*spool_fname(const uschar
*, const uschar
*, const uschar
*, const uschar
*);
465 extern BOOL
spool_move_message(uschar
*, uschar
*, uschar
*, uschar
*);
466 extern int spool_open_datafile(uschar
*);
467 extern int spool_open_temp(uschar
*);
468 extern int spool_read_header(uschar
*, BOOL
, BOOL
);
469 extern uschar
*spool_sname(const uschar
*, uschar
*);
470 extern int spool_write_header(uschar
*, int, uschar
**);
471 extern int stdin_getc(unsigned);
472 extern int stdin_feof(void);
473 extern int stdin_ferror(void);
474 extern int stdin_ungetc(int);
475 extern gstring
*string_append(gstring
*, int, ...) WARN_UNUSED_RESULT
;
476 extern gstring
*string_append_listele(gstring
*, uschar
, const uschar
*) WARN_UNUSED_RESULT
;
477 extern gstring
*string_append_listele_n(gstring
*, uschar
, const uschar
*, unsigned) WARN_UNUSED_RESULT
;
478 extern uschar
*string_base62(unsigned long int);
479 extern gstring
*string_cat (gstring
*, const uschar
* ) WARN_UNUSED_RESULT
;
480 extern gstring
*string_catn(gstring
*, const uschar
*, int) WARN_UNUSED_RESULT
;
481 extern int string_compare_by_pointer(const void *, const void *);
482 extern uschar
*string_copy_dnsdomain(uschar
*);
483 extern uschar
*string_copy_malloc(const uschar
*);
484 extern uschar
*string_copylc(const uschar
*);
485 extern uschar
*string_copynlc(uschar
*, int);
486 extern uschar
*string_dequote(const uschar
**);
487 extern BOOL
string_format(uschar
*, int, const char *, ...) ALMOST_PRINTF(3,4);
488 extern uschar
*string_format_size(int, uschar
*);
489 extern uschar
*string_from_gstring(gstring
*);
490 extern gstring
*string_get(unsigned);
491 extern int string_interpret_escape(const uschar
**);
492 extern int string_is_ip_address(const uschar
*, int *);
494 extern BOOL
string_is_utf8(const uschar
*);
496 extern uschar
*string_nextinlist(const uschar
**, int *, uschar
*, int);
497 extern uschar
*string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
498 extern const uschar
*string_printing2(const uschar
*, BOOL
);
499 extern uschar
*string_split_message(uschar
*);
500 extern uschar
*string_timediff(struct timeval
*);
501 extern uschar
*string_timesince(struct timeval
*);
502 extern uschar
*string_unprinting(uschar
*);
504 extern uschar
*string_address_utf8_to_alabel(const uschar
*, uschar
**);
505 extern uschar
*string_domain_alabel_to_utf8(const uschar
*, uschar
**);
506 extern uschar
*string_domain_utf8_to_alabel(const uschar
*, uschar
**);
507 extern uschar
*string_localpart_alabel_to_utf8(const uschar
*, uschar
**);
508 extern uschar
*string_localpart_utf8_to_alabel(const uschar
*, uschar
**);
510 extern BOOL
string_vformat(uschar
*, int, const char *, va_list);
511 extern int strcmpic(const uschar
*, const uschar
*);
512 extern int strncmpic(const uschar
*, const uschar
*, int);
513 extern uschar
*strstric(uschar
*, uschar
*, BOOL
);
515 #ifdef EXIM_TFO_PROBE
516 extern void tfo_probe(void);
518 extern void timesince(struct timeval
* diff
, struct timeval
* then
);
519 extern void tls_modify_variables(tls_support
*);
520 extern uschar
*tod_stamp(int);
522 extern BOOL
transport_check_waiting(const uschar
*, const uschar
*, int, uschar
*,
523 BOOL
*, oicf
, void*);
524 extern void transport_init(void);
525 extern void transport_do_pass_socket(const uschar
*, const uschar
*,
526 const uschar
*, uschar
*, int);
527 extern BOOL
transport_pass_socket(const uschar
*, const uschar
*, const uschar
*, uschar
*,
529 extern uschar
*transport_rcpt_address(address_item
*, BOOL
);
530 extern BOOL
transport_set_up_command(const uschar
***, uschar
*,
531 BOOL
, int, address_item
*, uschar
*, uschar
**);
532 extern void transport_update_waiting(host_item
*, uschar
*);
533 extern BOOL
transport_write_block(transport_ctx
*, uschar
*, int, BOOL
);
534 extern void transport_write_reset(int);
535 extern BOOL
transport_write_string(int, const char *, ...);
536 extern BOOL
transport_headers_send(transport_ctx
*,
537 BOOL (*)(transport_ctx
*, uschar
*, int));
538 extern void transport_show_supported(FILE *);
539 extern BOOL
transport_write_message(transport_ctx
*, int);
540 extern void tree_add_duplicate(uschar
*, address_item
*);
541 extern void tree_add_nonrecipient(uschar
*);
542 extern void tree_add_unusable(host_item
*);
543 extern int tree_insertnode(tree_node
**, tree_node
*);
544 extern tree_node
*tree_search(tree_node
*, const uschar
*);
545 extern void tree_write(tree_node
*, FILE *);
546 extern void tree_walk(tree_node
*, void (*)(uschar
*, uschar
*, void*), void *);
548 #ifdef WITH_CONTENT_SCAN
549 extern void unspool_mbox(void);
552 extern void utf8_version_report(FILE *);
555 extern int verify_address(address_item
*, FILE *, int, int, int, int,
556 uschar
*, uschar
*, BOOL
*);
557 extern int verify_check_dnsbl(int, const uschar
**, uschar
**);
558 extern int verify_check_header_address(uschar
**, uschar
**, int, int, int,
559 uschar
*, uschar
*, int, int *);
560 extern int verify_check_headers(uschar
**);
561 extern int verify_check_header_names_ascii(uschar
**);
562 extern int verify_check_host(uschar
**);
563 extern int verify_check_notblind(void);
564 extern int verify_check_given_host(uschar
**, host_item
*);
565 extern int verify_check_this_host(const uschar
**, unsigned int *,
566 const uschar
*, const uschar
*, const uschar
**);
567 extern address_item
*verify_checked_sender(uschar
*);
568 extern void verify_get_ident(int);
569 extern BOOL
verify_sender(int *, uschar
**);
570 extern BOOL
verify_sender_preliminary(int *, uschar
**);
571 extern void version_init(void);
573 extern BOOL
write_chunk(transport_ctx
*, uschar
*, int);
574 extern ssize_t
write_to_fd_buf(int, const uschar
*, size_t);
579 /* End of functions.h */