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Make environment.c more portable
[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 - 2015 */
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(void);
59extern int tls_import_cert(const uschar *, void **);
60extern int tls_read(BOOL, uschar *, size_t);
61extern int tls_server_start(const uschar *);
62extern BOOL tls_smtp_buffered(void);
63extern int tls_ungetc(int);
64extern int tls_write(BOOL, const uschar *, size_t);
65extern uschar *tls_validate_require_cipher(void);
66extern void tls_version_report(FILE *);
67# ifndef USE_GNUTLS
68extern BOOL tls_openssl_options_parse(uschar *, long *);
69# endif
70extern uschar * tls_field_from_dn(uschar *, const uschar *);
71extern BOOL tls_is_name_for_cert(const uschar *, void *);
72
73# ifdef EXPERIMENTAL_DANE
74extern int tlsa_lookup(const host_item *, dns_answer *, BOOL, BOOL *);
75# endif
76
77#endif /*SUPPORT_TLS*/
78
79
80/* Everything else... */
81
82extern acl_block *acl_read(uschar *(*)(void), uschar **);
83extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
84extern int acl_eval(int, uschar *, uschar **, uschar **);
85
86extern tree_node *acl_var_create(uschar *);
87extern void acl_var_write(uschar *, uschar *, void *);
88extern int auth_call_pam(const uschar *, uschar **);
89extern int auth_call_pwcheck(uschar *, uschar **);
90extern int auth_call_radius(const uschar *, uschar **);
91extern int auth_call_saslauthd(const uschar *, const uschar *,
92 const uschar *, const uschar *, uschar **);
93extern int auth_check_serv_cond(auth_instance *);
94extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
95
96extern int auth_get_data(uschar **, uschar *, int);
97extern int auth_get_no64_data(uschar **, uschar *);
98extern uschar *auth_xtextencode(uschar *, int);
99extern int auth_xtextdecode(uschar *, uschar **);
100
101extern uschar *b64encode(uschar *, int);
102extern int b64decode(uschar *, uschar **);
103extern void bits_clear(unsigned int *, size_t, int *);
104extern void bits_set(unsigned int *, size_t, int *);
105
106extern void cancel_cutthrough_connection(const char *);
107extern int check_host(void *, const uschar *, const uschar **, uschar **);
108extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
109extern pid_t child_open_uid(const uschar **, const uschar **, int,
110 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
111extern BOOL cleanup_environment(void);
112extern uschar *cutthrough_finaldot(void);
113extern BOOL cutthrough_flush_send(void);
114extern BOOL cutthrough_headers_send(void);
115extern BOOL cutthrough_predata(void);
116extern BOOL cutthrough_puts(uschar *, int);
117extern BOOL cutthrough_put_nl(void);
118
119extern void daemon_go(void);
120
121#ifdef EXPERIMENTAL_DCC
122extern int dcc_process(uschar **);
123#endif
124
125extern void debug_logging_activate(uschar *, uschar *);
126extern void debug_print_argv(const uschar **);
127extern void debug_print_ids(uschar *);
128extern void debug_print_string(uschar *);
129extern void debug_print_tree(tree_node *);
130extern void debug_vprintf(const char *, va_list);
131extern void decode_bits(unsigned int *, size_t, int *,
132 uschar *, bit_table *, int, uschar *, int);
133extern address_item *deliver_make_addr(uschar *, BOOL);
134extern void deliver_init(void);
135extern void delivery_log(int, address_item *, int, uschar *);
136extern int deliver_message(uschar *, BOOL, BOOL);
137extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
138extern void deliver_set_expansions(address_item *);
139extern int deliver_split_address(address_item *);
140extern void deliver_succeeded(address_item *);
141
142extern uschar *deliver_get_sender_address (uschar *id);
143
144#ifdef WITH_OLD_DEMIME
145extern int demime(uschar **);
146#endif
147extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
148#ifndef DISABLE_DKIM
149extern BOOL dkim_transport_write_message(address_item *, int, int,
150 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
151 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
152#endif
153extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
154extern int dns_basic_lookup(dns_answer *, const uschar *, int);
155extern void dns_build_reverse(const uschar *, uschar *);
156extern void dns_init(BOOL, BOOL, BOOL);
157extern BOOL dns_is_aa(const dns_answer *);
158extern BOOL dns_is_secure(const dns_answer *);
159extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
160extern void dns_pattern_init(void);
161extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
162extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
163extern uschar *dns_text_type(int);
164extern void dscp_list_to_stream(FILE *);
165extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
166
167extern void enq_end(uschar *);
168extern BOOL enq_start(uschar *, unsigned);
169#ifndef DISABLE_EVENT
170extern uschar *event_raise(uschar *, const uschar *, uschar *);
171extern void msg_event_raise(const uschar *, const address_item *);
172#endif
173extern void exim_exit(int);
174extern void exim_nullstd(void);
175extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
176extern int exim_tvcmp(struct timeval *, struct timeval *);
177extern void exim_wait_tick(struct timeval *, int);
178extern int exp_bool(address_item *addr,
179 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
180 uschar *svalue, BOOL *rvalue);
181extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
182extern uschar *expand_string(uschar *); /* public, cannot make const */
183extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
184extern uschar *expand_string_copy(const uschar *);
185extern int_eximarith_t expand_string_integer(uschar *, BOOL);
186extern void modify_variable(uschar *, void *);
187
188extern BOOL fd_ready(int, int);
189
190extern int filter_interpret(uschar *, int, address_item **, uschar **);
191extern BOOL filter_personal(string_item *, BOOL);
192extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
193extern BOOL filter_system_interpret(address_item **, uschar **);
194
195extern uschar * fn_hdrs_added(void);
196
197extern void header_add(int, const char *, ...);
198extern int header_checkname(header_line *, BOOL);
199extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
200extern int host_address_extract_port(uschar *);
201extern uschar *host_and_ident(BOOL);
202extern int host_aton(const uschar *, int *);
203extern void host_build_hostlist(host_item **, const uschar *, BOOL);
204extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
205extern void host_build_log_info(void);
206extern void host_build_sender_fullhost(void);
207extern BOOL host_find_byname(host_item *, const uschar *, int,
208 const uschar **, BOOL);
209extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
210 uschar *, const dnssec_domains *, const uschar **, BOOL *);
211extern ip_address_item *host_find_interfaces(void);
212extern BOOL host_is_in_net(const uschar *, const uschar *, int);
213extern BOOL host_is_tls_on_connect_port(int);
214extern int host_item_get_port(host_item *);
215extern void host_mask(int, int *, int);
216extern int host_name_lookup(void);
217extern int host_nmtoa(int, int *, int, uschar *, int);
218extern uschar *host_ntoa(int, const void *, uschar *, int *);
219extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
220
221extern uschar *imap_utf7_encode(uschar *, const uschar *,
222 uschar, uschar *, uschar **);
223
224extern void invert_address(uschar *, uschar *);
225extern int ip_addr(void *, int, const uschar *, int);
226extern int ip_bind(int, int, uschar *, int);
227extern int ip_connect(int, int, const uschar *, int, int);
228extern int ip_connectedsocket(int, const uschar *, int, int,
229 int, host_item *, uschar **);
230extern int ip_get_address_family(int);
231extern void ip_keepalive(int, const uschar *, BOOL);
232extern int ip_recv(int, uschar *, int, int);
233extern int ip_socket(int, int);
234
235extern int ip_tcpsocket(const uschar *, uschar **, int);
236extern int ip_unixsocket(const uschar *, uschar **);
237extern int ip_streamsocket(const uschar *, uschar **, int);
238
239extern int ipv6_nmtoa(int *, uschar *);
240
241extern uschar *local_part_quote(uschar *);
242extern int log_create(uschar *);
243extern int log_create_as_exim(uschar *);
244extern void log_close_all(void);
245
246#ifdef WITH_CONTENT_SCAN
247extern int malware(const uschar *, int);
248extern int malware_in_file(uschar *);
249extern void malware_init(void);
250#endif
251extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
252 unsigned int *, int, int, const uschar **);
253extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
254 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
255 const uschar *, const uschar **);
256extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
257 unsigned int *, int, BOOL, const uschar **);
258extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
259 const uschar **);
260extern void md5_end(md5 *, const uschar *, int, uschar *);
261extern void md5_mid(md5 *, const uschar *);
262extern void md5_start(md5 *);
263extern void millisleep(int);
264#ifdef WITH_CONTENT_SCAN
265struct mime_boundary_context;
266extern int mime_acl_check(uschar *acl, FILE *f,
267 struct mime_boundary_context *, uschar **, uschar **);
268extern int mime_decode(const uschar **);
269extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
270extern int mime_regex(const uschar **);
271extern void mime_set_anomaly(int);
272#endif
273extern uschar *moan_check_errorcopy(uschar *);
274extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
275 BOOL, uschar *);
276extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
277extern void moan_tell_someone(uschar *, address_item *,
278 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
279extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
280extern void moan_write_from(FILE *);
281extern FILE *modefopen(const uschar *, const char *, mode_t);
282
283extern void open_cutthrough_connection( address_item * addr );
284
285extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
286 BOOL);
287extern int parse_forward_list(uschar *, int, address_item **, uschar **,
288 const uschar *, uschar *, error_block **);
289extern uschar *parse_find_address_end(uschar *, BOOL);
290extern uschar *parse_find_at(uschar *);
291extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
292extern uschar *parse_message_id(uschar *, uschar **, uschar **);
293extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
294extern uschar *parse_date_time(uschar *str, time_t *t);
295extern int vaguely_random_number(int);
296#ifdef SUPPORT_TLS
297extern int vaguely_random_number_fallback(int);
298#endif
299
300extern BOOL queue_action(uschar *, int, uschar **, int, int);
301extern void queue_check_only(void);
302extern void queue_list(int, uschar **, int);
303extern void queue_count(void);
304extern void queue_run(uschar *, uschar *, BOOL);
305
306extern int random_number(int);
307extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
308 uschar *, uschar *, uschar *, ugid_block *, address_item **,
309 uschar **, error_block **, int *, uschar *);
310extern int rda_is_filter(const uschar *);
311extern BOOL readconf_depends(driver_instance *, uschar *);
312extern void readconf_driver_init(uschar *, driver_instance **,
313 driver_info *, int, void *, int, optionlist *, int);
314extern uschar *readconf_find_option(void *);
315extern void readconf_main(void);
316extern void readconf_print(uschar *, uschar *, BOOL);
317extern uschar *readconf_printtime(int);
318extern uschar *readconf_readname(uschar *, int, uschar *);
319extern int readconf_readtime(const uschar *, int, BOOL);
320extern void readconf_rest(void);
321extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
322extern void readconf_save_config(const uschar *);
323extern void read_message_body(BOOL);
324extern void receive_bomb_out(uschar *, uschar *);
325extern BOOL receive_check_fs(int);
326extern BOOL receive_check_set_sender(uschar *);
327extern BOOL receive_msg(BOOL);
328extern int receive_statvfs(BOOL, int *);
329extern void receive_swallow_smtp(void);
330#ifdef WITH_CONTENT_SCAN
331extern int regex(const uschar **);
332#endif
333extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
334extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
335extern void retry_add_item(address_item *, uschar *, int);
336extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
337 uschar **, uschar **);
338extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
339extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
340 dbdata_retry *, time_t);
341extern void retry_update(address_item **, address_item **, address_item **);
342extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
343extern uschar *rewrite_address_qualify(uschar *, BOOL);
344extern header_line *rewrite_header(header_line *,
345 const uschar *, const uschar *,
346 rewrite_rule *, int, BOOL);
347extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
348 rewrite_rule *);
349extern void rewrite_test(uschar *);
350extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
351 uschar **);
352extern int route_address(address_item *, address_item **, address_item **,
353 address_item **, address_item **, int);
354extern int route_check_prefix(const uschar *, const uschar *);
355extern int route_check_suffix(const uschar *, const uschar *);
356extern BOOL route_findgroup(uschar *, gid_t *);
357extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
358extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
359 uschar **);
360extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
361 struct passwd **, uid_t *, uschar **);
362extern void route_init(void);
363extern void route_tidyup(void);
364
365extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
366 int, int *);
367extern int search_findtype(const uschar *, int);
368extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
369 int *);
370extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
371extern void search_tidyup(void);
372extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
373extern void sha1_end(sha1 *, const uschar *, int, uschar *);
374extern void sha1_mid(sha1 *, const uschar *);
375extern void sha1_start(sha1 *);
376extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
377 uschar *, address_item **, uschar **);
378extern void sigalrm_handler(int);
379extern BOOL smtp_buffered(void);
380extern void smtp_closedown(uschar *);
381extern int smtp_connect(host_item *, int, int, uschar *, int,
382 transport_instance *);
383extern int smtp_sock_connect(host_item *, int, int, uschar *,
384 transport_instance * tb, int);
385extern int smtp_feof(void);
386extern int smtp_ferror(void);
387extern uschar *smtp_get_connection_info(void);
388extern BOOL smtp_get_interface(uschar *, int, address_item *,
389 uschar **, uschar *);
390extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
391extern int smtp_getc(void);
392extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
393extern void smtp_log_no_mail(void);
394extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
395extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
396extern void smtp_respond(uschar *, int, BOOL, uschar *);
397extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
398extern void smtp_send_prohibition_message(int, uschar *);
399extern int smtp_setup_msg(void);
400extern BOOL smtp_start_session(void);
401extern int smtp_ungetc(int);
402extern BOOL smtp_verify_helo(void);
403extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
404#ifdef WITH_CONTENT_SCAN
405extern int spam(const uschar **);
406extern FILE *spool_mbox(unsigned long *, const uschar *);
407#endif
408extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
409extern BOOL spool_open_datafile(uschar *);
410extern int spool_open_temp(uschar *);
411extern int spool_read_header(uschar *, BOOL, BOOL);
412extern int spool_write_header(uschar *, int, uschar **);
413extern int stdin_getc(void);
414extern int stdin_feof(void);
415extern int stdin_ferror(void);
416extern int stdin_ungetc(int);
417extern uschar *string_append(uschar *, int *, int *, int, ...);
418extern uschar *string_append_listele(uschar *, uschar, const uschar *);
419extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
420extern uschar *string_base62(unsigned long int);
421extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
422extern int string_compare_by_pointer(const uschar **, const uschar **);
423extern uschar *string_copy_dnsdomain(uschar *);
424extern uschar *string_copy_malloc(const uschar *);
425extern uschar *string_copylc(const uschar *);
426extern uschar *string_copynlc(uschar *, int);
427extern uschar *string_dequote(const uschar **);
428extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
429extern uschar *string_format_size(int, uschar *);
430extern int string_interpret_escape(const uschar **);
431extern int string_is_ip_address(const uschar *, int *);
432#ifdef SUPPORT_I18N
433extern BOOL string_is_utf8(const uschar *);
434#endif
435extern uschar *string_log_address(address_item *, BOOL, BOOL);
436extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
437extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
438extern const uschar *string_printing2(const uschar *, BOOL);
439extern uschar *string_split_message(uschar *);
440extern uschar *string_unprinting(uschar *);
441#ifdef SUPPORT_I18N
442extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
443extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
444extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
445extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
446extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
447#endif
448extern BOOL string_vformat(uschar *, int, const char *, va_list);
449extern int strcmpic(const uschar *, const uschar *);
450extern int strncmpic(const uschar *, const uschar *, int);
451extern uschar *strstric(uschar *, uschar *, BOOL);
452
453extern uschar *tod_stamp(int);
454
455extern void tls_modify_variables(tls_support *);
456extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
457 BOOL *, oicf, void*);
458extern void transport_init(void);
459extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
460 int);
461extern uschar *transport_rcpt_address(address_item *, BOOL);
462extern BOOL transport_set_up_command(const uschar ***, uschar *,
463 BOOL, int, address_item *, uschar *, uschar **);
464extern void transport_update_waiting(host_item *, uschar *);
465extern BOOL transport_write_block(int, uschar *, int);
466extern BOOL transport_write_string(int, const char *, ...);
467extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
468 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
469extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
470 uschar *, uschar *, uschar *, rewrite_rule *, int);
471extern void tree_add_duplicate(uschar *, address_item *);
472extern void tree_add_nonrecipient(uschar *);
473extern void tree_add_unusable(host_item *);
474extern int tree_insertnode(tree_node **, tree_node *);
475extern tree_node *tree_search(tree_node *, const uschar *);
476extern void tree_write(tree_node *, FILE *);
477extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
478
479#ifdef WITH_CONTENT_SCAN
480extern void unspool_mbox(void);
481#endif
482#ifdef SUPPORT_I18N
483extern void utf8_version_report(FILE *);
484#endif
485
486extern int verify_address(address_item *, FILE *, int, int, int, int,
487 uschar *, uschar *, BOOL *);
488extern int verify_check_dnsbl(int, const uschar **, uschar **);
489extern int verify_check_header_address(uschar **, uschar **, int, int, int,
490 uschar *, uschar *, int, int *);
491extern int verify_check_headers(uschar **);
492extern int verify_check_header_names_ascii(uschar **);
493extern int verify_check_host(uschar **);
494extern int verify_check_notblind(void);
495extern int verify_check_given_host(uschar **, host_item *);
496extern int verify_check_this_host(const uschar **, unsigned int *,
497 const uschar*, const uschar *, const uschar **);
498extern address_item *verify_checked_sender(uschar *);
499extern void verify_get_ident(int);
500extern BOOL verify_sender(int *, uschar **);
501extern BOOL verify_sender_preliminary(int *, uschar **);
502extern void version_init(void);
503
504extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
505
506/* vi: aw
507*/
508/* End of functions.h */
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