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Memory management: when running under the testsuite, check every string variable...
[exim.git] / src / src / functions.h
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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
10to avoid having a lot of tiddly little headers with only a couple of lines in
11them. However, some functions that are used (or not used) by utility programs
12are in in fact in separate headers. */
13
14
15#ifdef EXIM_PERL
16extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
17 uschar **);
18extern void cleanup_perl(void);
19extern uschar *init_perl(uschar *);
20#endif
21
22
23#ifdef SUPPORT_TLS
24extern const char *
25 std_dh_prime_default(void);
26extern const char *
27 std_dh_prime_named(const uschar *);
28
29extern uschar * tls_cert_crl_uri(void *, uschar * mod);
30extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
31extern uschar * tls_cert_issuer(void *, uschar * mod);
32extern uschar * tls_cert_not_before(void *, uschar * mod);
33extern uschar * tls_cert_not_after(void *, uschar * mod);
34extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
35extern uschar * tls_cert_serial_number(void *, uschar * mod);
36extern uschar * tls_cert_signature(void *, uschar * mod);
37extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
38extern uschar * tls_cert_subject(void *, uschar * mod);
39extern uschar * tls_cert_subject_altname(void *, uschar * mod);
40extern uschar * tls_cert_version(void *, uschar * mod);
41
42extern uschar * tls_cert_der_b64(void * cert);
43extern uschar * tls_cert_fprt_md5(void *);
44extern uschar * tls_cert_fprt_sha1(void *);
45extern uschar * tls_cert_fprt_sha256(void *);
46
47extern int tls_client_start(int, host_item *, address_item *,
48 transport_instance *
49# ifdef EXPERIMENTAL_DANE
50 , dns_answer *
51# endif
52 );
53extern void tls_close(BOOL, BOOL);
54extern int tls_export_cert(uschar *, size_t, void *);
55extern int tls_feof(void);
56extern int tls_ferror(void);
57extern void tls_free_cert(void **);
58extern int tls_getc(unsigned);
59extern void tls_get_cache(void);
60extern int tls_import_cert(const uschar *, void **);
61extern int tls_read(BOOL, uschar *, size_t);
62extern int tls_server_start(const uschar *);
63extern BOOL tls_smtp_buffered(void);
64extern int tls_ungetc(int);
65extern int tls_write(BOOL, const uschar *, size_t);
66extern uschar *tls_validate_require_cipher(void);
67extern void tls_version_report(FILE *);
68# ifndef USE_GNUTLS
69extern BOOL tls_openssl_options_parse(uschar *, long *);
70# endif
71extern uschar * tls_field_from_dn(uschar *, const uschar *);
72extern BOOL tls_is_name_for_cert(const uschar *, void *);
73
74# ifdef EXPERIMENTAL_DANE
75extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
76# endif
77
78#endif /*SUPPORT_TLS*/
79
80
81/* Everything else... */
82
83extern acl_block *acl_read(uschar *(*)(void), uschar **);
84extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
85extern int acl_eval(int, uschar *, uschar **, uschar **);
86
87extern tree_node *acl_var_create(uschar *);
88extern void acl_var_write(uschar *, uschar *, void *);
89extern void assert_no_variables(void *, int, const char *, int);
90extern int auth_call_pam(const uschar *, uschar **);
91extern int auth_call_pwcheck(uschar *, uschar **);
92extern int auth_call_radius(const uschar *, uschar **);
93extern int auth_call_saslauthd(const uschar *, const uschar *,
94 const uschar *, const uschar *, uschar **);
95extern int auth_check_serv_cond(auth_instance *);
96extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
97
98extern int auth_get_data(uschar **, uschar *, int);
99extern int auth_get_no64_data(uschar **, uschar *);
100extern uschar *auth_xtextencode(uschar *, int);
101extern int auth_xtextdecode(uschar *, uschar **);
102
103extern uschar *b64encode(uschar *, int);
104extern int b64decode(uschar *, uschar **);
105extern int bdat_getc(unsigned);
106extern void bdat_flush_data(void);
107
108extern void bits_clear(unsigned int *, size_t, int *);
109extern void bits_set(unsigned int *, size_t, int *);
110
111extern void cancel_cutthrough_connection(const char *);
112extern int check_host(void *, const uschar *, const uschar **, uschar **);
113extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
114extern pid_t child_open_uid(const uschar **, const uschar **, int,
115 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
116extern BOOL cleanup_environment(void);
117extern uschar *cutthrough_finaldot(void);
118extern BOOL cutthrough_flush_send(void);
119extern BOOL cutthrough_headers_send(void);
120extern BOOL cutthrough_predata(void);
121extern BOOL cutthrough_puts(uschar *, int);
122extern BOOL cutthrough_put_nl(void);
123
124extern void daemon_go(void);
125
126#ifdef EXPERIMENTAL_DCC
127extern int dcc_process(uschar **);
128#endif
129
130extern void debug_logging_activate(uschar *, uschar *);
131extern void debug_logging_stop(void);
132extern void debug_print_argv(const uschar **);
133extern void debug_print_ids(uschar *);
134extern void debug_print_string(uschar *);
135extern void debug_print_tree(tree_node *);
136extern void debug_vprintf(const char *, va_list);
137extern void decode_bits(unsigned int *, size_t, int *,
138 uschar *, bit_table *, int, uschar *, int);
139extern address_item *deliver_make_addr(uschar *, BOOL);
140extern void deliver_init(void);
141extern void delivery_log(int, address_item *, int, uschar *);
142extern int deliver_message(uschar *, BOOL, BOOL);
143extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
144extern void deliver_set_expansions(address_item *);
145extern int deliver_split_address(address_item *);
146extern void deliver_succeeded(address_item *);
147
148extern uschar *deliver_get_sender_address (uschar *id);
149
150extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
151#ifndef DISABLE_DKIM
152extern BOOL dkim_transport_write_message(int, transport_ctx *,
153 struct ob_dkim *);
154#endif
155extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
156extern int dns_basic_lookup(dns_answer *, const uschar *, int);
157extern void dns_build_reverse(const uschar *, uschar *);
158extern void dns_init(BOOL, BOOL, BOOL);
159extern BOOL dns_is_aa(const dns_answer *);
160extern BOOL dns_is_secure(const dns_answer *);
161extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
162extern void dns_pattern_init(void);
163extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
164extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
165extern uschar *dns_text_type(int);
166extern void dscp_list_to_stream(FILE *);
167extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
168
169extern void enq_end(uschar *);
170extern BOOL enq_start(uschar *, unsigned);
171#ifndef DISABLE_EVENT
172extern uschar *event_raise(uschar *, const uschar *, uschar *);
173extern void msg_event_raise(const uschar *, const address_item *);
174#endif
175extern const uschar * exim_errstr(int);
176extern void exim_exit(int);
177extern void exim_nullstd(void);
178extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
179extern int exim_tvcmp(struct timeval *, struct timeval *);
180extern void exim_wait_tick(struct timeval *, int);
181extern int exp_bool(address_item *addr,
182 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
183 uschar *svalue, BOOL *rvalue);
184extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
185extern uschar *expand_string(uschar *); /* public, cannot make const */
186extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
187extern uschar *expand_hide_passwords(uschar * );
188extern uschar *expand_string_copy(const uschar *);
189extern int_eximarith_t expand_string_integer(uschar *, BOOL);
190extern void modify_variable(uschar *, void *);
191
192extern BOOL fd_ready(int, int);
193
194extern int filter_interpret(uschar *, int, address_item **, uschar **);
195extern BOOL filter_personal(string_item *, BOOL);
196extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
197extern BOOL filter_system_interpret(address_item **, uschar **);
198
199extern uschar * fn_hdrs_added(void);
200
201extern void header_add(int, const char *, ...);
202extern int header_checkname(header_line *, BOOL);
203extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
204extern int host_address_extract_port(uschar *);
205extern uschar *host_and_ident(BOOL);
206extern int host_aton(const uschar *, int *);
207extern void host_build_hostlist(host_item **, const uschar *, BOOL);
208extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
209extern void host_build_log_info(void);
210extern void host_build_sender_fullhost(void);
211extern int host_find_byname(host_item *, const uschar *, int,
212 const uschar **, BOOL);
213extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
214 uschar *, const dnssec_domains *, const uschar **, BOOL *);
215extern ip_address_item *host_find_interfaces(void);
216extern BOOL host_is_in_net(const uschar *, const uschar *, int);
217extern BOOL host_is_tls_on_connect_port(int);
218extern int host_item_get_port(host_item *);
219extern void host_mask(int, int *, int);
220extern int host_name_lookup(void);
221extern int host_nmtoa(int, int *, int, uschar *, int);
222extern uschar *host_ntoa(int, const void *, uschar *, int *);
223extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
224
225extern uschar *imap_utf7_encode(uschar *, const uschar *,
226 uschar, uschar *, uschar **);
227
228extern void invert_address(uschar *, uschar *);
229extern int ip_addr(void *, int, const uschar *, int);
230extern int ip_bind(int, int, uschar *, int);
231extern int ip_connect(int, int, const uschar *, int, int, BOOL);
232extern int ip_connectedsocket(int, const uschar *, int, int,
233 int, host_item *, uschar **);
234extern int ip_get_address_family(int);
235extern void ip_keepalive(int, const uschar *, BOOL);
236extern int ip_recv(int, uschar *, int, int);
237extern int ip_socket(int, int);
238
239extern int ip_tcpsocket(const uschar *, uschar **, int);
240extern int ip_unixsocket(const uschar *, uschar **);
241extern int ip_streamsocket(const uschar *, uschar **, int);
242
243extern int ipv6_nmtoa(int *, uschar *);
244
245extern uschar *local_part_quote(uschar *);
246extern int log_create(uschar *);
247extern int log_create_as_exim(uschar *);
248extern void log_close_all(void);
249
250extern macro_item * macro_create(const uschar *, const uschar *, BOOL, BOOL);
251extern void mainlog_close(void);
252#ifdef WITH_CONTENT_SCAN
253extern int malware(const uschar *, int);
254extern int malware_in_file(uschar *);
255extern void malware_init(void);
256#endif
257extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
258 unsigned int *, int, int, const uschar **);
259extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
260 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
261 const uschar *, const uschar **);
262extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
263 unsigned int *, int, BOOL, const uschar **);
264extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
265 const uschar **);
266extern void md5_end(md5 *, const uschar *, int, uschar *);
267extern void md5_mid(md5 *, const uschar *);
268extern void md5_start(md5 *);
269extern void millisleep(int);
270#ifdef WITH_CONTENT_SCAN
271struct mime_boundary_context;
272extern int mime_acl_check(uschar *acl, FILE *f,
273 struct mime_boundary_context *, uschar **, uschar **);
274extern int mime_decode(const uschar **);
275extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
276extern int mime_regex(const uschar **);
277extern void mime_set_anomaly(int);
278#endif
279extern uschar *moan_check_errorcopy(uschar *);
280extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
281 BOOL, uschar *);
282extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
283extern void moan_tell_someone(uschar *, address_item *,
284 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
285extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
286extern void moan_write_from(FILE *);
287extern FILE *modefopen(const uschar *, const char *, mode_t);
288
289extern int open_cutthrough_connection( address_item * addr );
290
291extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
292 BOOL);
293extern int parse_forward_list(uschar *, int, address_item **, uschar **,
294 const uschar *, uschar *, error_block **);
295extern uschar *parse_find_address_end(uschar *, BOOL);
296extern uschar *parse_find_at(uschar *);
297extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
298extern uschar *parse_message_id(uschar *, uschar **, uschar **);
299extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
300extern uschar *parse_date_time(uschar *str, time_t *t);
301extern int vaguely_random_number(int);
302#ifdef SUPPORT_TLS
303extern int vaguely_random_number_fallback(int);
304#endif
305
306extern BOOL queue_action(uschar *, int, uschar **, int, int);
307extern void queue_check_only(void);
308extern void queue_list(int, uschar **, int);
309extern void queue_count(void);
310extern void queue_run(uschar *, uschar *, BOOL);
311
312extern int random_number(int);
313extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
314 uschar *, uschar *, uschar *, ugid_block *, address_item **,
315 uschar **, error_block **, int *, uschar *);
316extern int rda_is_filter(const uschar *);
317extern BOOL readconf_depends(driver_instance *, uschar *);
318extern void readconf_driver_init(uschar *, driver_instance **,
319 driver_info *, int, void *, int, optionlist *, int);
320extern uschar *readconf_find_option(void *);
321extern void readconf_main(BOOL);
322extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
323extern void readconf_options_routers(void);
324extern void readconf_options_transports(void);
325extern void readconf_print(uschar *, uschar *, BOOL);
326extern uschar *readconf_printtime(int);
327extern uschar *readconf_readname(uschar *, int, uschar *);
328extern int readconf_readtime(const uschar *, int, BOOL);
329extern void readconf_rest(void);
330extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
331extern void readconf_save_config(const uschar *);
332extern void read_message_body(BOOL);
333extern void receive_bomb_out(uschar *, uschar *);
334extern BOOL receive_check_fs(int);
335extern BOOL receive_check_set_sender(uschar *);
336extern BOOL receive_msg(BOOL);
337extern int receive_statvfs(BOOL, int *);
338extern void receive_swallow_smtp(void);
339#ifdef WITH_CONTENT_SCAN
340extern int regex(const uschar **);
341#endif
342extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
343extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
344extern void retry_add_item(address_item *, uschar *, int);
345extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
346 uschar **, uschar **);
347extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
348extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
349 dbdata_retry *, time_t);
350extern void retry_update(address_item **, address_item **, address_item **);
351extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
352extern uschar *rewrite_address_qualify(uschar *, BOOL);
353extern header_line *rewrite_header(header_line *,
354 const uschar *, const uschar *,
355 rewrite_rule *, int, BOOL);
356extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
357 rewrite_rule *);
358extern void rewrite_test(uschar *);
359extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
360 uschar **);
361extern int route_address(address_item *, address_item **, address_item **,
362 address_item **, address_item **, int);
363extern int route_check_prefix(const uschar *, const uschar *);
364extern int route_check_suffix(const uschar *, const uschar *);
365extern BOOL route_findgroup(uschar *, gid_t *);
366extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
367extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
368 uschar **);
369extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
370 struct passwd **, uid_t *, uschar **);
371extern void route_init(void);
372extern void route_tidyup(void);
373
374extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
375 int, int *);
376extern int search_findtype(const uschar *, int);
377extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
378 int *);
379extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
380extern void search_tidyup(void);
381extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
382extern void sha1_end(hctx *, const uschar *, int, uschar *);
383extern void sha1_mid(hctx *, const uschar *);
384extern void sha1_start(hctx *);
385extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
386 uschar *, address_item **, uschar **);
387extern void sigalrm_handler(int);
388extern BOOL smtp_buffered(void);
389extern void smtp_closedown(uschar *);
390extern int smtp_connect(host_item *, int, int, uschar *, int,
391 transport_instance *);
392extern int smtp_sock_connect(host_item *, int, int, uschar *,
393 transport_instance * tb, int);
394extern int smtp_feof(void);
395extern int smtp_ferror(void);
396extern uschar *smtp_get_connection_info(void);
397extern BOOL smtp_get_interface(uschar *, int, address_item *,
398 uschar **, uschar *);
399extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
400extern int smtp_getc(unsigned);
401extern void smtp_get_cache(void);
402extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
403extern void smtp_log_no_mail(void);
404extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
405extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
406extern void smtp_respond(uschar *, int, BOOL, uschar *);
407extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
408extern void smtp_send_prohibition_message(int, uschar *);
409extern int smtp_setup_msg(void);
410extern BOOL smtp_start_session(void);
411extern int smtp_ungetc(int);
412extern BOOL smtp_verify_helo(void);
413extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
414#ifdef WITH_CONTENT_SCAN
415extern int spam(const uschar **);
416extern FILE *spool_mbox(unsigned long *, const uschar *);
417#endif
418extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
419extern uschar *spool_dname(const uschar *, uschar *);
420extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
421extern uschar *spool_sname(const uschar *, uschar *);
422extern int spool_open_datafile(uschar *);
423extern int spool_open_temp(uschar *);
424extern int spool_read_header(uschar *, BOOL, BOOL);
425extern int spool_write_header(uschar *, int, uschar **);
426extern int stdin_getc(unsigned);
427extern int stdin_feof(void);
428extern int stdin_ferror(void);
429extern int stdin_ungetc(int);
430extern uschar *string_append(uschar *, int *, int *, int, ...);
431extern uschar *string_append_listele(uschar *, uschar, const uschar *);
432extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
433extern uschar *string_base62(unsigned long int);
434extern uschar *string_cat(uschar *, int *, int *, const uschar *);
435extern uschar *string_catn(uschar *, int *, int *, const uschar *, int);
436extern int string_compare_by_pointer(const void *, const void *);
437extern uschar *string_copy_dnsdomain(uschar *);
438extern uschar *string_copy_malloc(const uschar *);
439extern uschar *string_copylc(const uschar *);
440extern uschar *string_copynlc(uschar *, int);
441extern uschar *string_dequote(const uschar **);
442extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
443extern uschar *string_format_size(int, uschar *);
444extern int string_interpret_escape(const uschar **);
445extern int string_is_ip_address(const uschar *, int *);
446#ifdef SUPPORT_I18N
447extern BOOL string_is_utf8(const uschar *);
448#endif
449extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
450extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
451extern const uschar *string_printing2(const uschar *, BOOL);
452extern uschar *string_split_message(uschar *);
453extern uschar *string_unprinting(uschar *);
454#ifdef SUPPORT_I18N
455extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
456extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
457extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
458extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
459extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
460#endif
461extern BOOL string_vformat(uschar *, int, const char *, va_list);
462extern int strcmpic(const uschar *, const uschar *);
463extern int strncmpic(const uschar *, const uschar *, int);
464extern uschar *strstric(uschar *, uschar *, BOOL);
465
466extern uschar *tod_stamp(int);
467
468extern void tls_modify_variables(tls_support *);
469extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
470 BOOL *, oicf, void*);
471extern void transport_init(void);
472extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
473 int);
474extern uschar *transport_rcpt_address(address_item *, BOOL);
475extern BOOL transport_set_up_command(const uschar ***, uschar *,
476 BOOL, int, address_item *, uschar *, uschar **);
477extern void transport_update_waiting(host_item *, uschar *);
478extern BOOL transport_write_block(int, uschar *, int);
479extern BOOL transport_write_string(int, const char *, ...);
480extern BOOL transport_headers_send(int, transport_ctx *,
481 BOOL (*)(int, transport_ctx *, uschar *, int));
482extern BOOL transport_write_message(int, transport_ctx *, int);
483extern void tree_add_duplicate(uschar *, address_item *);
484extern void tree_add_nonrecipient(uschar *);
485extern void tree_add_unusable(host_item *);
486extern int tree_insertnode(tree_node **, tree_node *);
487extern tree_node *tree_search(tree_node *, const uschar *);
488extern void tree_write(tree_node *, FILE *);
489extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
490
491#ifdef WITH_CONTENT_SCAN
492extern void unspool_mbox(void);
493#endif
494#ifdef SUPPORT_I18N
495extern void utf8_version_report(FILE *);
496#endif
497
498extern int verify_address(address_item *, FILE *, int, int, int, int,
499 uschar *, uschar *, BOOL *);
500extern int verify_check_dnsbl(int, const uschar **, uschar **);
501extern int verify_check_header_address(uschar **, uschar **, int, int, int,
502 uschar *, uschar *, int, int *);
503extern int verify_check_headers(uschar **);
504extern int verify_check_header_names_ascii(uschar **);
505extern int verify_check_host(uschar **);
506extern int verify_check_notblind(void);
507extern int verify_check_given_host(uschar **, host_item *);
508extern int verify_check_this_host(const uschar **, unsigned int *,
509 const uschar*, const uschar *, const uschar **);
510extern address_item *verify_checked_sender(uschar *);
511extern void verify_get_ident(int);
512extern BOOL verify_sender(int *, uschar **);
513extern BOOL verify_sender_preliminary(int *, uschar **);
514extern void version_init(void);
515
516extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
517
518/* vi: aw
519*/
520/* End of functions.h */
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