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ARC initial implementation. Experimental. Bug 2162
[exim.git] / src / src / functions.h
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CommitLineData
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
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 gstring *call_perl_cat(gstring *, uschar **, uschar *,
17 uschar **) WARN_UNUSED_RESULT;
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 SUPPORT_DANE
50 dns_answer *,
51# endif
52 uschar **);
53extern void tls_close(BOOL, int);
54extern BOOL tls_could_read(void);
55extern int tls_export_cert(uschar *, size_t, void *);
56extern int tls_feof(void);
57extern int tls_ferror(void);
58extern void tls_free_cert(void **);
59extern int tls_getc(unsigned);
60extern uschar *tls_getbuf(unsigned *);
61extern void tls_get_cache(void);
62extern int tls_import_cert(const uschar *, void **);
63extern int tls_read(BOOL, uschar *, size_t);
64extern int tls_server_start(const uschar *, uschar **);
65extern BOOL tls_smtp_buffered(void);
66extern int tls_ungetc(int);
67extern int tls_write(BOOL, const uschar *, size_t, BOOL);
68extern uschar *tls_validate_require_cipher(void);
69extern void tls_version_report(FILE *);
70# ifndef USE_GNUTLS
71extern BOOL tls_openssl_options_parse(uschar *, long *);
72# endif
73extern uschar * tls_field_from_dn(uschar *, const uschar *);
74extern BOOL tls_is_name_for_cert(const uschar *, void *);
75
76# ifdef SUPPORT_DANE
77extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
78# endif
79
80#endif /*SUPPORT_TLS*/
81
82
83/* Everything else... */
84
85extern acl_block *acl_read(uschar *(*)(void), uschar **);
86extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
87extern int acl_eval(int, uschar *, uschar **, uschar **);
88
89extern tree_node *acl_var_create(uschar *);
90extern void acl_var_write(uschar *, uschar *, void *);
91
92#ifdef EXPERIMENTAL_ARC
93extern void *arc_ams_setup_sign_bodyhash(void);
94extern const uschar *arc_header_feed(gstring *, BOOL);
95extern gstring *arc_sign(const uschar *, gstring *, uschar **);
96extern const uschar *acl_verify_arc(void);
97#endif
98
99extern void assert_no_variables(void *, int, const char *, int);
100extern int auth_call_pam(const uschar *, uschar **);
101extern int auth_call_pwcheck(uschar *, uschar **);
102extern int auth_call_radius(const uschar *, uschar **);
103extern int auth_call_saslauthd(const uschar *, const uschar *,
104 const uschar *, const uschar *, uschar **);
105extern int auth_check_serv_cond(auth_instance *);
106extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
107
108
109extern int auth_get_data(uschar **, uschar *, int);
110extern int auth_get_no64_data(uschar **, uschar *);
111extern void auth_show_supported(FILE *);
112extern uschar *auth_xtextencode(uschar *, int);
113extern int auth_xtextdecode(uschar *, uschar **);
114
115extern gstring *authres_smtpauth(gstring *);
116#ifdef SUPPORT_SPF
117extern gstring *authres_spf(gstring *);
118#endif
119#ifndef DISABLE_DKIM
120extern gstring *authres_dkim(gstring *);
121#endif
122#ifdef EXPERIMENTAL_ARC
123extern gstring *authres_arc(gstring *);
124#endif
125
126extern uschar *b64encode(uschar *, int);
127extern int b64decode(const uschar *, uschar **);
128extern int bdat_getc(unsigned);
129extern uschar *bdat_getbuf(unsigned *);
130extern int bdat_ungetc(int);
131extern void bdat_flush_data(void);
132
133extern void bits_clear(unsigned int *, size_t, int *);
134extern void bits_set(unsigned int *, size_t, int *);
135
136extern void cancel_cutthrough_connection(BOOL, const uschar *);
137extern int check_host(void *, const uschar *, const uschar **, uschar **);
138extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
139extern pid_t child_open_uid(const uschar **, const uschar **, int,
140 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
141extern BOOL cleanup_environment(void);
142extern void cutthrough_data_puts(uschar *, int);
143extern void cutthrough_data_put_nl(void);
144extern uschar *cutthrough_finaldot(void);
145extern BOOL cutthrough_flush_send(void);
146extern BOOL cutthrough_headers_send(void);
147extern BOOL cutthrough_predata(void);
148extern void release_cutthrough_connection(const uschar *);
149
150extern void daemon_go(void);
151
152#ifdef EXPERIMENTAL_DCC
153extern int dcc_process(uschar **);
154#endif
155
156extern void debug_logging_activate(uschar *, uschar *);
157extern void debug_logging_stop(void);
158extern void debug_print_argv(const uschar **);
159extern void debug_print_ids(uschar *);
160extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
161extern void debug_print_string(uschar *);
162extern void debug_print_tree(tree_node *);
163extern void debug_vprintf(int, const char *, va_list);
164extern void decode_bits(unsigned int *, size_t, int *,
165 uschar *, bit_table *, int, uschar *, int);
166extern address_item *deliver_make_addr(uschar *, BOOL);
167extern void deliver_init(void);
168extern void delivery_log(int, address_item *, int, uschar *);
169extern int deliver_message(uschar *, BOOL, BOOL);
170extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
171extern void deliver_set_expansions(address_item *);
172extern int deliver_split_address(address_item *);
173extern void deliver_succeeded(address_item *);
174
175extern uschar *deliver_get_sender_address (uschar *id);
176extern void delivery_re_exec(int);
177
178extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
179#ifndef DISABLE_DKIM
180extern uschar *dkim_exim_query_dns_txt(uschar *);
181extern void dkim_exim_sign_init(void);
182
183extern BOOL dkim_transport_write_message(transport_ctx *,
184 struct ob_dkim *, const uschar ** errstr);
185#endif
186extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
187extern int dns_basic_lookup(dns_answer *, const uschar *, int);
188extern void dns_build_reverse(const uschar *, uschar *);
189extern void dns_init(BOOL, BOOL, BOOL);
190extern BOOL dns_is_aa(const dns_answer *);
191extern BOOL dns_is_secure(const dns_answer *);
192extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
193extern void dns_pattern_init(void);
194extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
195extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
196extern uschar *dns_text_type(int);
197extern void dscp_list_to_stream(FILE *);
198extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
199
200extern void enq_end(uschar *);
201extern BOOL enq_start(uschar *, unsigned);
202#ifndef DISABLE_EVENT
203extern uschar *event_raise(uschar *, const uschar *, uschar *);
204extern void msg_event_raise(const uschar *, const address_item *);
205#endif
206extern const uschar * exim_errstr(int);
207extern void exim_exit(int, const uschar *);
208extern void exim_nullstd(void);
209extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
210extern void exim_wait_tick(struct timeval *, int);
211extern int exp_bool(address_item *addr,
212 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
213 uschar *svalue, BOOL *rvalue);
214extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
215extern uschar *expand_file_big_buffer(const uschar *);
216extern uschar *expand_string(uschar *); /* public, cannot make const */
217extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
218extern uschar *expand_hide_passwords(uschar * );
219extern uschar *expand_string_copy(const uschar *);
220extern int_eximarith_t expand_string_integer(uschar *, BOOL);
221extern void modify_variable(uschar *, void *);
222
223extern BOOL fd_ready(int, int);
224
225extern int filter_interpret(uschar *, int, address_item **, uschar **);
226extern BOOL filter_personal(string_item *, BOOL);
227extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
228extern BOOL filter_system_interpret(address_item **, uschar **);
229
230extern uschar * fn_hdrs_added(void);
231
232extern void gstring_reset_unused(gstring *);
233
234extern void header_add(int, const char *, ...);
235extern int header_checkname(header_line *, BOOL);
236extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
237extern int host_address_extract_port(uschar *);
238extern uschar *host_and_ident(BOOL);
239extern int host_aton(const uschar *, int *);
240extern void host_build_hostlist(host_item **, const uschar *, BOOL);
241extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
242extern void host_build_log_info(void);
243extern void host_build_sender_fullhost(void);
244extern int host_find_byname(host_item *, const uschar *, int,
245 const uschar **, BOOL);
246extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
247 uschar *, const dnssec_domains *, const uschar **, BOOL *);
248extern ip_address_item *host_find_interfaces(void);
249extern BOOL host_is_in_net(const uschar *, const uschar *, int);
250extern BOOL host_is_tls_on_connect_port(int);
251extern int host_item_get_port(host_item *);
252extern void host_mask(int, int *, int);
253extern int host_name_lookup(void);
254extern int host_nmtoa(int, int *, int, uschar *, int);
255extern uschar *host_ntoa(int, const void *, uschar *, int *);
256extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
257
258extern uschar *imap_utf7_encode(uschar *, const uschar *,
259 uschar, uschar *, uschar **);
260
261extern void invert_address(uschar *, uschar *);
262extern int ip_addr(void *, int, const uschar *, int);
263extern int ip_bind(int, int, uschar *, int);
264extern int ip_connect(int, int, const uschar *, int, int, const blob *);
265extern int ip_connectedsocket(int, const uschar *, int, int,
266 int, host_item *, uschar **, const blob *);
267extern int ip_get_address_family(int);
268extern void ip_keepalive(int, const uschar *, BOOL);
269extern int ip_recv(int, uschar *, int, int);
270extern int ip_socket(int, int);
271
272extern int ip_tcpsocket(const uschar *, uschar **, int);
273extern int ip_unixsocket(const uschar *, uschar **);
274extern int ip_streamsocket(const uschar *, uschar **, int);
275
276extern int ipv6_nmtoa(int *, uschar *);
277
278extern uschar *local_part_quote(uschar *);
279extern int log_create(uschar *);
280extern int log_create_as_exim(uschar *);
281extern void log_close_all(void);
282
283extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
284extern BOOL macro_read_assignment(uschar *);
285extern uschar *macros_expand(int, int *, BOOL *);
286extern void mainlog_close(void);
287#ifdef WITH_CONTENT_SCAN
288extern int malware(const uschar *, int);
289extern int malware_in_file(uschar *);
290extern void malware_init(void);
291extern void malware_show_supported(FILE *);
292#endif
293extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
294 unsigned int *, int, int, const uschar **);
295extern int match_address_list_basic(const uschar *, const uschar **, int);
296extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
297 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
298 const uschar *, const uschar **);
299extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
300 unsigned int *, int, BOOL, const uschar **);
301extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
302 const uschar **);
303extern void md5_end(md5 *, const uschar *, int, uschar *);
304extern void md5_mid(md5 *, const uschar *);
305extern void md5_start(md5 *);
306extern void millisleep(int);
307#ifdef WITH_CONTENT_SCAN
308struct mime_boundary_context;
309extern int mime_acl_check(uschar *acl, FILE *f,
310 struct mime_boundary_context *, uschar **, uschar **);
311extern int mime_decode(const uschar **);
312extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
313extern int mime_regex(const uschar **);
314extern void mime_set_anomaly(int);
315#endif
316extern uschar *moan_check_errorcopy(uschar *);
317extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
318 BOOL, uschar *);
319extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
320extern void moan_tell_someone(uschar *, address_item *,
321 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
322extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
323extern void moan_write_from(FILE *);
324extern FILE *modefopen(const uschar *, const char *, mode_t);
325
326extern int open_cutthrough_connection( address_item * addr );
327
328extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
329 BOOL);
330extern int parse_forward_list(uschar *, int, address_item **, uschar **,
331 const uschar *, uschar *, error_block **);
332extern uschar *parse_find_address_end(uschar *, BOOL);
333extern uschar *parse_find_at(uschar *);
334extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
335extern uschar *parse_message_id(uschar *, uschar **, uschar **);
336extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
337extern uschar *parse_date_time(uschar *str, time_t *t);
338extern int vaguely_random_number(int);
339#ifdef SUPPORT_TLS
340extern int vaguely_random_number_fallback(int);
341#endif
342
343extern BOOL queue_action(uschar *, int, uschar **, int, int);
344extern void queue_check_only(void);
345extern void queue_list(int, uschar **, int);
346extern void queue_count(void);
347extern void queue_run(uschar *, uschar *, BOOL);
348
349extern int random_number(int);
350extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
351 uschar *, uschar *, uschar *, ugid_block *, address_item **,
352 uschar **, error_block **, int *, uschar *);
353extern int rda_is_filter(const uschar *);
354extern BOOL readconf_depends(driver_instance *, uschar *);
355extern void readconf_driver_init(uschar *, driver_instance **,
356 driver_info *, int, void *, int, optionlist *, int);
357extern uschar *readconf_find_option(void *);
358extern void readconf_main(BOOL);
359extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
360extern BOOL readconf_print(uschar *, uschar *, BOOL);
361extern uschar *readconf_printtime(int);
362extern uschar *readconf_readname(uschar *, int, uschar *);
363extern int readconf_readtime(const uschar *, int, BOOL);
364extern void readconf_rest(void);
365extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
366extern void readconf_save_config(const uschar *);
367extern void read_message_body(BOOL);
368extern void receive_bomb_out(uschar *, uschar *);
369extern BOOL receive_check_fs(int);
370extern BOOL receive_check_set_sender(uschar *);
371extern BOOL receive_msg(BOOL);
372extern int receive_statvfs(BOOL, int *);
373extern void receive_swallow_smtp(void);
374#ifdef WITH_CONTENT_SCAN
375extern int regex(const uschar **);
376#endif
377extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
378extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
379extern void retry_add_item(address_item *, uschar *, int);
380extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
381 uschar **, uschar **);
382extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
383extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
384 dbdata_retry *, time_t);
385extern void retry_update(address_item **, address_item **, address_item **);
386extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
387extern uschar *rewrite_address_qualify(uschar *, BOOL);
388extern header_line *rewrite_header(header_line *,
389 const uschar *, const uschar *,
390 rewrite_rule *, int, BOOL);
391extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
392 rewrite_rule *);
393extern void rewrite_test(uschar *);
394extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
395 uschar **);
396extern int route_address(address_item *, address_item **, address_item **,
397 address_item **, address_item **, int);
398extern int route_check_prefix(const uschar *, const uschar *);
399extern int route_check_suffix(const uschar *, const uschar *);
400extern BOOL route_findgroup(uschar *, gid_t *);
401extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
402extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
403 uschar **);
404extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
405 struct passwd **, uid_t *, uschar **);
406extern void route_init(void);
407extern void route_show_supported(FILE *);
408extern void route_tidyup(void);
409
410extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
411 int, int *);
412extern int search_findtype(const uschar *, int);
413extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
414 int *);
415extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
416extern void search_tidyup(void);
417extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
418extern void sha1_end(hctx *, const uschar *, int, uschar *);
419extern void sha1_mid(hctx *, const uschar *);
420extern void sha1_start(hctx *);
421extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
422 uschar *, address_item **, uschar **);
423extern void sigalrm_handler(int);
424extern BOOL smtp_buffered(void);
425extern void smtp_closedown(uschar *);
426extern uschar *smtp_cmd_hist(void);
427extern int smtp_connect(host_item *, int, uschar *, int,
428 transport_instance *);
429extern int smtp_sock_connect(host_item *, int, int, uschar *,
430 transport_instance * tb, int, const blob *);
431extern int smtp_feof(void);
432extern int smtp_ferror(void);
433extern uschar *smtp_get_connection_info(void);
434extern BOOL smtp_get_interface(uschar *, int, address_item *,
435 uschar **, uschar *);
436extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
437extern int smtp_getc(unsigned);
438extern uschar *smtp_getbuf(unsigned *);
439extern void smtp_get_cache(void);
440extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
441extern void smtp_log_no_mail(void);
442extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
443extern void smtp_proxy_tls(uschar *, size_t, int *, int);
444extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
445extern void smtp_respond(uschar *, int, BOOL, uschar *);
446extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
447extern void smtp_port_for_connect(host_item *, int);
448extern void smtp_send_prohibition_message(int, uschar *);
449extern int smtp_setup_msg(void);
450extern BOOL smtp_start_session(void);
451extern int smtp_ungetc(int);
452extern BOOL smtp_verify_helo(void);
453extern int smtp_write_command(smtp_outblock *, int, const char *, ...) PRINTF_FUNCTION(3,4);
454#ifdef WITH_CONTENT_SCAN
455extern int spam(const uschar **);
456extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
457#endif
458extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
459extern uschar *spool_dname(const uschar *, uschar *);
460extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
461extern uschar *spool_sname(const uschar *, uschar *);
462extern int spool_open_datafile(uschar *);
463extern int spool_open_temp(uschar *);
464extern int spool_read_header(uschar *, BOOL, BOOL);
465extern int spool_write_header(uschar *, int, uschar **);
466extern int stdin_getc(unsigned);
467extern int stdin_feof(void);
468extern int stdin_ferror(void);
469extern int stdin_ungetc(int);
470extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
471extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
472extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
473extern uschar *string_base62(unsigned long int);
474extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
475extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
476extern int string_compare_by_pointer(const void *, const void *);
477extern uschar *string_copy_dnsdomain(uschar *);
478extern uschar *string_copy_malloc(const uschar *);
479extern uschar *string_copylc(const uschar *);
480extern uschar *string_copynlc(uschar *, int);
481extern uschar *string_dequote(const uschar **);
482extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
483extern uschar *string_format_size(int, uschar *);
484extern uschar *string_from_gstring(gstring *);
485extern gstring *string_get(unsigned);
486extern int string_interpret_escape(const uschar **);
487extern int string_is_ip_address(const uschar *, int *);
488#ifdef SUPPORT_I18N
489extern BOOL string_is_utf8(const uschar *);
490#endif
491extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
492extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
493extern const uschar *string_printing2(const uschar *, BOOL);
494extern uschar *string_split_message(uschar *);
495extern uschar *string_timediff(struct timeval *);
496extern uschar *string_timesince(struct timeval *);
497extern uschar *string_unprinting(uschar *);
498#ifdef SUPPORT_I18N
499extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
500extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
501extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
502extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
503extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
504#endif
505extern BOOL string_vformat(uschar *, int, const char *, va_list);
506extern int strcmpic(const uschar *, const uschar *);
507extern int strncmpic(const uschar *, const uschar *, int);
508extern uschar *strstric(uschar *, uschar *, BOOL);
509
510#ifdef EXIM_TFO_PROBE
511extern void tfo_probe(void);
512#endif
513extern void timesince(struct timeval * diff, struct timeval * then);
514extern void tls_modify_variables(tls_support *);
515extern uschar *tod_stamp(int);
516
517extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
518 BOOL *, oicf, void*);
519extern void transport_init(void);
520extern void transport_do_pass_socket(const uschar *, const uschar *,
521 const uschar *, uschar *, int);
522extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
523 int);
524extern uschar *transport_rcpt_address(address_item *, BOOL);
525extern BOOL transport_set_up_command(const uschar ***, uschar *,
526 BOOL, int, address_item *, uschar *, uschar **);
527extern void transport_update_waiting(host_item *, uschar *);
528extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
529extern void transport_write_reset(int);
530extern BOOL transport_write_string(int, const char *, ...);
531extern BOOL transport_headers_send(transport_ctx *,
532 BOOL (*)(transport_ctx *, uschar *, int));
533extern void transport_show_supported(FILE *);
534extern BOOL transport_write_message(transport_ctx *, int);
535extern void tree_add_duplicate(uschar *, address_item *);
536extern void tree_add_nonrecipient(uschar *);
537extern void tree_add_unusable(host_item *);
538extern int tree_insertnode(tree_node **, tree_node *);
539extern tree_node *tree_search(tree_node *, const uschar *);
540extern void tree_write(tree_node *, FILE *);
541extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
542
543#ifdef WITH_CONTENT_SCAN
544extern void unspool_mbox(void);
545#endif
546#ifdef SUPPORT_I18N
547extern void utf8_version_report(FILE *);
548#endif
549
550extern int verify_address(address_item *, FILE *, int, int, int, int,
551 uschar *, uschar *, BOOL *);
552extern int verify_check_dnsbl(int, const uschar **, uschar **);
553extern int verify_check_header_address(uschar **, uschar **, int, int, int,
554 uschar *, uschar *, int, int *);
555extern int verify_check_headers(uschar **);
556extern int verify_check_header_names_ascii(uschar **);
557extern int verify_check_host(uschar **);
558extern int verify_check_notblind(void);
559extern int verify_check_given_host(uschar **, host_item *);
560extern int verify_check_this_host(const uschar **, unsigned int *,
561 const uschar*, const uschar *, const uschar **);
562extern address_item *verify_checked_sender(uschar *);
563extern void verify_get_ident(int);
564extern BOOL verify_sender(int *, uschar **);
565extern BOOL verify_sender_preliminary(int *, uschar **);
566extern void version_init(void);
567
568extern BOOL write_chunk(transport_ctx *, uschar *, int);
569extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
570
571
572/* vi: aw
573*/
574/* End of functions.h */
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