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Fix pipe transport to not use a socket-only syscall. Bug 2257
[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
115#ifdef EXPERIMENTAL_ARC
116extern gstring *authres_arc(gstring *);
117#endif
118#ifndef DISABLE_DKIM
119extern gstring *authres_dkim(gstring *);
120#endif
121#ifdef EXPERIMENTAL_DMARC
122extern gstring *authres_dmarc(gstring *);
123#endif
124extern gstring *authres_smtpauth(gstring *);
125#ifdef SUPPORT_SPF
126extern gstring *authres_spf(gstring *);
127#endif
128
129extern uschar *b64encode(uschar *, int);
130extern int b64decode(const uschar *, uschar **);
131extern int bdat_getc(unsigned);
132extern uschar *bdat_getbuf(unsigned *);
133extern int bdat_ungetc(int);
134extern void bdat_flush_data(void);
135
136extern void bits_clear(unsigned int *, size_t, int *);
137extern void bits_set(unsigned int *, size_t, int *);
138
139extern void cancel_cutthrough_connection(BOOL, const uschar *);
140extern int check_host(void *, const uschar *, const uschar **, uschar **);
141extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
142extern pid_t child_open_uid(const uschar **, const uschar **, int,
143 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
144extern BOOL cleanup_environment(void);
145extern void cutthrough_data_puts(uschar *, int);
146extern void cutthrough_data_put_nl(void);
147extern uschar *cutthrough_finaldot(void);
148extern BOOL cutthrough_flush_send(void);
149extern BOOL cutthrough_headers_send(void);
150extern BOOL cutthrough_predata(void);
151extern void release_cutthrough_connection(const uschar *);
152
153extern void daemon_go(void);
154
155#ifdef EXPERIMENTAL_DCC
156extern int dcc_process(uschar **);
157#endif
158
159extern void debug_logging_activate(uschar *, uschar *);
160extern void debug_logging_stop(void);
161extern void debug_print_argv(const uschar **);
162extern void debug_print_ids(uschar *);
163extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
164extern void debug_print_string(uschar *);
165extern void debug_print_tree(tree_node *);
166extern void debug_vprintf(int, const char *, va_list);
167extern void decode_bits(unsigned int *, size_t, int *,
168 uschar *, bit_table *, int, uschar *, int);
169extern address_item *deliver_make_addr(uschar *, BOOL);
170extern void deliver_init(void);
171extern void delivery_log(int, address_item *, int, uschar *);
172extern int deliver_message(uschar *, BOOL, BOOL);
173extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
174extern void deliver_set_expansions(address_item *);
175extern int deliver_split_address(address_item *);
176extern void deliver_succeeded(address_item *);
177
178extern uschar *deliver_get_sender_address (uschar *id);
179extern void delivery_re_exec(int);
180
181extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
182#ifndef DISABLE_DKIM
183extern uschar *dkim_exim_query_dns_txt(uschar *);
184extern void dkim_exim_sign_init(void);
185
186extern BOOL dkim_transport_write_message(transport_ctx *,
187 struct ob_dkim *, const uschar ** errstr);
188#endif
189extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
190extern int dns_basic_lookup(dns_answer *, const uschar *, int);
191extern void dns_build_reverse(const uschar *, uschar *);
192extern void dns_init(BOOL, BOOL, BOOL);
193extern BOOL dns_is_aa(const dns_answer *);
194extern BOOL dns_is_secure(const dns_answer *);
195extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
196extern void dns_pattern_init(void);
197extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
198extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
199extern uschar *dns_text_type(int);
200extern void dscp_list_to_stream(FILE *);
201extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
202
203extern void enq_end(uschar *);
204extern BOOL enq_start(uschar *, unsigned);
205#ifndef DISABLE_EVENT
206extern uschar *event_raise(uschar *, const uschar *, uschar *);
207extern void msg_event_raise(const uschar *, const address_item *);
208#endif
209extern const uschar * exim_errstr(int);
210extern void exim_exit(int, const uschar *);
211extern void exim_nullstd(void);
212extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
213extern void exim_wait_tick(struct timeval *, int);
214extern int exp_bool(address_item *addr,
215 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
216 uschar *svalue, BOOL *rvalue);
217extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
218extern uschar *expand_file_big_buffer(const uschar *);
219extern uschar *expand_string(uschar *); /* public, cannot make const */
220extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
221extern uschar *expand_hide_passwords(uschar * );
222extern uschar *expand_string_copy(const uschar *);
223extern int_eximarith_t expand_string_integer(uschar *, BOOL);
224extern void modify_variable(uschar *, void *);
225
226extern BOOL fd_ready(int, int);
227
228extern int filter_interpret(uschar *, int, address_item **, uschar **);
229extern BOOL filter_personal(string_item *, BOOL);
230extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
231extern BOOL filter_system_interpret(address_item **, uschar **);
232
233extern uschar * fn_hdrs_added(void);
234
235extern void gstring_reset_unused(gstring *);
236
237extern void header_add(int, const char *, ...);
238extern int header_checkname(header_line *, BOOL);
239extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
240extern int host_address_extract_port(uschar *);
241extern uschar *host_and_ident(BOOL);
242extern int host_aton(const uschar *, int *);
243extern void host_build_hostlist(host_item **, const uschar *, BOOL);
244extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
245extern void host_build_log_info(void);
246extern void host_build_sender_fullhost(void);
247extern int host_find_byname(host_item *, const uschar *, int,
248 const uschar **, BOOL);
249extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
250 uschar *, const dnssec_domains *, const uschar **, BOOL *);
251extern ip_address_item *host_find_interfaces(void);
252extern BOOL host_is_in_net(const uschar *, const uschar *, int);
253extern BOOL host_is_tls_on_connect_port(int);
254extern int host_item_get_port(host_item *);
255extern void host_mask(int, int *, int);
256extern int host_name_lookup(void);
257extern int host_nmtoa(int, int *, int, uschar *, int);
258extern uschar *host_ntoa(int, const void *, uschar *, int *);
259extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
260
261extern uschar *imap_utf7_encode(uschar *, const uschar *,
262 uschar, uschar *, uschar **);
263
264extern void invert_address(uschar *, uschar *);
265extern int ip_addr(void *, int, const uschar *, int);
266extern int ip_bind(int, int, uschar *, int);
267extern int ip_connect(int, int, const uschar *, int, int, const blob *);
268extern int ip_connectedsocket(int, const uschar *, int, int,
269 int, host_item *, uschar **, const blob *);
270extern int ip_get_address_family(int);
271extern void ip_keepalive(int, const uschar *, BOOL);
272extern int ip_recv(int, uschar *, int, int);
273extern int ip_socket(int, int);
274
275extern int ip_tcpsocket(const uschar *, uschar **, int);
276extern int ip_unixsocket(const uschar *, uschar **);
277extern int ip_streamsocket(const uschar *, uschar **, int);
278
279extern int ipv6_nmtoa(int *, uschar *);
280
281extern uschar *local_part_quote(uschar *);
282extern int log_create(uschar *);
283extern int log_create_as_exim(uschar *);
284extern void log_close_all(void);
285
286extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
287extern BOOL macro_read_assignment(uschar *);
288extern uschar *macros_expand(int, int *, BOOL *);
289extern void mainlog_close(void);
290#ifdef WITH_CONTENT_SCAN
291extern int malware(const uschar *, int);
292extern int malware_in_file(uschar *);
293extern void malware_init(void);
294extern void malware_show_supported(FILE *);
295#endif
296extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
297 unsigned int *, int, int, const uschar **);
298extern int match_address_list_basic(const uschar *, const uschar **, int);
299extern 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 **);
302extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
303 unsigned int *, int, BOOL, const uschar **);
304extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
305 const uschar **);
306extern void md5_end(md5 *, const uschar *, int, uschar *);
307extern void md5_mid(md5 *, const uschar *);
308extern void md5_start(md5 *);
309extern void millisleep(int);
310#ifdef WITH_CONTENT_SCAN
311struct mime_boundary_context;
312extern int mime_acl_check(uschar *acl, FILE *f,
313 struct mime_boundary_context *, uschar **, uschar **);
314extern int mime_decode(const uschar **);
315extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
316extern int mime_regex(const uschar **);
317extern void mime_set_anomaly(int);
318#endif
319extern uschar *moan_check_errorcopy(uschar *);
320extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
321 BOOL, uschar *);
322extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
323extern void moan_tell_someone(uschar *, address_item *,
324 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
325extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
326extern void moan_write_from(FILE *);
327extern FILE *modefopen(const uschar *, const char *, mode_t);
328
329extern int open_cutthrough_connection( address_item * addr );
330
331extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
332 BOOL);
333extern int parse_forward_list(uschar *, int, address_item **, uschar **,
334 const uschar *, uschar *, error_block **);
335extern uschar *parse_find_address_end(uschar *, BOOL);
336extern uschar *parse_find_at(uschar *);
337extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
338extern uschar *parse_message_id(uschar *, uschar **, uschar **);
339extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
340extern uschar *parse_date_time(uschar *str, time_t *t);
341extern int vaguely_random_number(int);
342#ifdef SUPPORT_TLS
343extern int vaguely_random_number_fallback(int);
344#endif
345
346extern BOOL queue_action(uschar *, int, uschar **, int, int);
347extern void queue_check_only(void);
348extern void queue_list(int, uschar **, int);
349extern void queue_count(void);
350extern void queue_run(uschar *, uschar *, BOOL);
351
352extern int random_number(int);
353extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
354 uschar *, uschar *, uschar *, ugid_block *, address_item **,
355 uschar **, error_block **, int *, uschar *);
356extern int rda_is_filter(const uschar *);
357extern BOOL readconf_depends(driver_instance *, uschar *);
358extern void readconf_driver_init(uschar *, driver_instance **,
359 driver_info *, int, void *, int, optionlist *, int);
360extern uschar *readconf_find_option(void *);
361extern void readconf_main(BOOL);
362extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
363extern BOOL readconf_print(uschar *, uschar *, BOOL);
364extern uschar *readconf_printtime(int);
365extern uschar *readconf_readname(uschar *, int, uschar *);
366extern int readconf_readtime(const uschar *, int, BOOL);
367extern void readconf_rest(void);
368extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
369extern void readconf_save_config(const uschar *);
370extern void read_message_body(BOOL);
371extern void receive_bomb_out(uschar *, uschar *);
372extern BOOL receive_check_fs(int);
373extern BOOL receive_check_set_sender(uschar *);
374extern BOOL receive_msg(BOOL);
375extern int receive_statvfs(BOOL, int *);
376extern void receive_swallow_smtp(void);
377#ifdef WITH_CONTENT_SCAN
378extern int regex(const uschar **);
379#endif
380extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
381extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
382extern void retry_add_item(address_item *, uschar *, int);
383extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
384 uschar **, uschar **);
385extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
386extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
387 dbdata_retry *, time_t);
388extern void retry_update(address_item **, address_item **, address_item **);
389extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
390extern uschar *rewrite_address_qualify(uschar *, BOOL);
391extern header_line *rewrite_header(header_line *,
392 const uschar *, const uschar *,
393 rewrite_rule *, int, BOOL);
394extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
395 rewrite_rule *);
396extern void rewrite_test(uschar *);
397extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
398 uschar **);
399extern int route_address(address_item *, address_item **, address_item **,
400 address_item **, address_item **, int);
401extern int route_check_prefix(const uschar *, const uschar *);
402extern int route_check_suffix(const uschar *, const uschar *);
403extern BOOL route_findgroup(uschar *, gid_t *);
404extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
405extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
406 uschar **);
407extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
408 struct passwd **, uid_t *, uschar **);
409extern void route_init(void);
410extern void route_show_supported(FILE *);
411extern void route_tidyup(void);
412
413extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
414 int, int *);
415extern int search_findtype(const uschar *, int);
416extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
417 int *);
418extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
419extern void search_tidyup(void);
420extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
421extern void sha1_end(hctx *, const uschar *, int, uschar *);
422extern void sha1_mid(hctx *, const uschar *);
423extern void sha1_start(hctx *);
424extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
425 uschar *, address_item **, uschar **);
426extern void sigalrm_handler(int);
427extern BOOL smtp_buffered(void);
428extern void smtp_closedown(uschar *);
429extern uschar *smtp_cmd_hist(void);
430extern int smtp_connect(host_item *, int, uschar *, int,
431 transport_instance *);
432extern int smtp_sock_connect(host_item *, int, int, uschar *,
433 transport_instance * tb, int, const blob *);
434extern int smtp_feof(void);
435extern int smtp_ferror(void);
436extern uschar *smtp_get_connection_info(void);
437extern BOOL smtp_get_interface(uschar *, int, address_item *,
438 uschar **, uschar *);
439extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
440extern int smtp_getc(unsigned);
441extern uschar *smtp_getbuf(unsigned *);
442extern void smtp_get_cache(void);
443extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
444extern void smtp_log_no_mail(void);
445extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
446extern void smtp_proxy_tls(uschar *, size_t, int *, int);
447extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
448extern void smtp_reset(void *);
449extern void smtp_respond(uschar *, int, BOOL, uschar *);
450extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
451extern void smtp_port_for_connect(host_item *, int);
452extern void smtp_send_prohibition_message(int, uschar *);
453extern int smtp_setup_msg(void);
454extern BOOL smtp_start_session(void);
455extern int smtp_ungetc(int);
456extern BOOL smtp_verify_helo(void);
457extern int smtp_write_command(smtp_outblock *, int, const char *, ...) PRINTF_FUNCTION(3,4);
458#ifdef WITH_CONTENT_SCAN
459extern int spam(const uschar **);
460extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
461#endif
462extern void spool_clear_header_globals(void);
463extern uschar *spool_dname(const uschar *, uschar *);
464extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
465extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
466extern int spool_open_datafile(uschar *);
467extern int spool_open_temp(uschar *);
468extern int spool_read_header(uschar *, BOOL, BOOL);
469extern uschar *spool_sname(const uschar *, uschar *);
470extern int spool_write_header(uschar *, int, uschar **);
471extern int stdin_getc(unsigned);
472extern int stdin_feof(void);
473extern int stdin_ferror(void);
474extern int stdin_ungetc(int);
475extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
476extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
477extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
478extern uschar *string_base62(unsigned long int);
479extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
480extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
481extern int string_compare_by_pointer(const void *, const void *);
482extern uschar *string_copy_dnsdomain(uschar *);
483extern uschar *string_copy_malloc(const uschar *);
484extern uschar *string_copylc(const uschar *);
485extern uschar *string_copynlc(uschar *, int);
486extern uschar *string_dequote(const uschar **);
487extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
488extern uschar *string_format_size(int, uschar *);
489extern uschar *string_from_gstring(gstring *);
490extern gstring *string_get(unsigned);
491extern int string_interpret_escape(const uschar **);
492extern int string_is_ip_address(const uschar *, int *);
493#ifdef SUPPORT_I18N
494extern BOOL string_is_utf8(const uschar *);
495#endif
496extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
497extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
498extern const uschar *string_printing2(const uschar *, BOOL);
499extern uschar *string_split_message(uschar *);
500extern uschar *string_timediff(struct timeval *);
501extern uschar *string_timesince(struct timeval *);
502extern uschar *string_unprinting(uschar *);
503#ifdef SUPPORT_I18N
504extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
505extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
506extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
507extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
508extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
509#endif
510extern BOOL string_vformat(uschar *, int, const char *, va_list);
511extern int strcmpic(const uschar *, const uschar *);
512extern int strncmpic(const uschar *, const uschar *, int);
513extern uschar *strstric(uschar *, uschar *, BOOL);
514
515#ifdef EXIM_TFO_PROBE
516extern void tfo_probe(void);
517#endif
518extern void timesince(struct timeval * diff, struct timeval * then);
519extern void tls_modify_variables(tls_support *);
520extern uschar *tod_stamp(int);
521
522extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
523 BOOL *, oicf, void*);
524extern void transport_init(void);
525extern void transport_do_pass_socket(const uschar *, const uschar *,
526 const uschar *, uschar *, int);
527extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
528 int);
529extern uschar *transport_rcpt_address(address_item *, BOOL);
530extern BOOL transport_set_up_command(const uschar ***, uschar *,
531 BOOL, int, address_item *, uschar *, uschar **);
532extern void transport_update_waiting(host_item *, uschar *);
533extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
534extern void transport_write_reset(int);
535extern BOOL transport_write_string(int, const char *, ...);
536extern BOOL transport_headers_send(transport_ctx *,
537 BOOL (*)(transport_ctx *, uschar *, int));
538extern void transport_show_supported(FILE *);
539extern BOOL transport_write_message(transport_ctx *, int);
540extern void tree_add_duplicate(uschar *, address_item *);
541extern void tree_add_nonrecipient(uschar *);
542extern void tree_add_unusable(host_item *);
543extern int tree_insertnode(tree_node **, tree_node *);
544extern tree_node *tree_search(tree_node *, const uschar *);
545extern void tree_write(tree_node *, FILE *);
546extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
547
548#ifdef WITH_CONTENT_SCAN
549extern void unspool_mbox(void);
550#endif
551#ifdef SUPPORT_I18N
552extern void utf8_version_report(FILE *);
553#endif
554
555extern int verify_address(address_item *, FILE *, int, int, int, int,
556 uschar *, uschar *, BOOL *);
557extern int verify_check_dnsbl(int, const uschar **, uschar **);
558extern int verify_check_header_address(uschar **, uschar **, int, int, int,
559 uschar *, uschar *, int, int *);
560extern int verify_check_headers(uschar **);
561extern int verify_check_header_names_ascii(uschar **);
562extern int verify_check_host(uschar **);
563extern int verify_check_notblind(void);
564extern int verify_check_given_host(uschar **, host_item *);
565extern int verify_check_this_host(const uschar **, unsigned int *,
566 const uschar*, const uschar *, const uschar **);
567extern address_item *verify_checked_sender(uschar *);
568extern void verify_get_ident(int);
569extern BOOL verify_sender(int *, uschar **);
570extern BOOL verify_sender_preliminary(int *, uschar **);
571extern void version_init(void);
572
573extern BOOL write_chunk(transport_ctx *, uschar *, int);
574extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
575
576
577/* vi: aw
578*/
579/* End of functions.h */
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