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Debug: config file name & line number for each ACL verb
[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 - 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 void * tls_client_start(int, host_item *, address_item *,
48 transport_instance *,
49# ifdef SUPPORT_DANE
50 dns_answer *,
51# endif
52 tls_support *, uschar **);
53extern void tls_close(void *, 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(void *, 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(void *, 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 void arc_sign_init(void);
97extern const uschar *acl_verify_arc(void);
98extern uschar * fn_arc_domains(void);
99#endif
100
101extern void assert_no_variables(void *, int, const char *, int);
102extern int auth_call_pam(const uschar *, uschar **);
103extern int auth_call_pwcheck(uschar *, uschar **);
104extern int auth_call_radius(const uschar *, uschar **);
105extern int auth_call_saslauthd(const uschar *, const uschar *,
106 const uschar *, const uschar *, uschar **);
107extern int auth_check_serv_cond(auth_instance *);
108extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
109extern int auth_client_item(void *, auth_instance *, const uschar **,
110 unsigned, int, uschar *, int);
111
112
113extern int auth_get_data(uschar **, const uschar *, int);
114extern int auth_get_no64_data(uschar **, uschar *);
115extern int auth_read_input(const uschar *);
116extern void auth_show_supported(FILE *);
117extern uschar *auth_xtextencode(uschar *, int);
118extern int auth_xtextdecode(uschar *, uschar **);
119
120#ifdef EXPERIMENTAL_ARC
121extern gstring *authres_arc(gstring *);
122#endif
123#ifndef DISABLE_DKIM
124extern gstring *authres_dkim(gstring *);
125#endif
126#ifdef EXPERIMENTAL_DMARC
127extern gstring *authres_dmarc(gstring *);
128#endif
129extern gstring *authres_smtpauth(gstring *);
130#ifdef SUPPORT_SPF
131extern gstring *authres_spf(gstring *);
132#endif
133
134extern uschar *b64encode(const uschar *, int);
135extern int b64decode(const uschar *, uschar **);
136extern int bdat_getc(unsigned);
137extern uschar *bdat_getbuf(unsigned *);
138extern int bdat_ungetc(int);
139extern void bdat_flush_data(void);
140
141extern void bits_clear(unsigned int *, size_t, int *);
142extern void bits_set(unsigned int *, size_t, int *);
143
144extern void cancel_cutthrough_connection(BOOL, const uschar *);
145extern int check_host(void *, const uschar *, const uschar **, uschar **);
146extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
147extern pid_t child_open_uid(const uschar **, const uschar **, int,
148 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
149extern BOOL cleanup_environment(void);
150extern void cutthrough_data_puts(uschar *, int);
151extern void cutthrough_data_put_nl(void);
152extern uschar *cutthrough_finaldot(void);
153extern BOOL cutthrough_flush_send(void);
154extern BOOL cutthrough_headers_send(void);
155extern BOOL cutthrough_predata(void);
156extern void release_cutthrough_connection(const uschar *);
157
158extern void daemon_go(void);
159
160#ifdef EXPERIMENTAL_DCC
161extern int dcc_process(uschar **);
162#endif
163
164extern void debug_logging_activate(uschar *, uschar *);
165extern void debug_logging_stop(void);
166extern void debug_print_argv(const uschar **);
167extern void debug_print_ids(uschar *);
168extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
169extern void debug_print_string(uschar *);
170extern void debug_print_tree(tree_node *);
171extern void debug_vprintf(int, const char *, va_list);
172extern void decode_bits(unsigned int *, size_t, int *,
173 uschar *, bit_table *, int, uschar *, int);
174extern address_item *deliver_make_addr(uschar *, BOOL);
175extern void deliver_init(void);
176extern void delivery_log(int, address_item *, int, uschar *);
177extern int deliver_message(uschar *, BOOL, BOOL);
178extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
179extern void deliver_set_expansions(address_item *);
180extern int deliver_split_address(address_item *);
181extern void deliver_succeeded(address_item *);
182
183extern uschar *deliver_get_sender_address (uschar *id);
184extern void delivery_re_exec(int);
185
186extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
187#ifndef DISABLE_DKIM
188extern uschar *dkim_exim_query_dns_txt(uschar *);
189extern void dkim_exim_sign_init(void);
190
191extern BOOL dkim_transport_write_message(transport_ctx *,
192 struct ob_dkim *, const uschar ** errstr);
193#endif
194extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
195extern int dns_basic_lookup(dns_answer *, const uschar *, int);
196extern void dns_build_reverse(const uschar *, uschar *);
197extern void dns_init(BOOL, BOOL, BOOL);
198extern BOOL dns_is_aa(const dns_answer *);
199extern BOOL dns_is_secure(const dns_answer *);
200extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
201extern void dns_pattern_init(void);
202extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
203extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
204extern uschar *dns_text_type(int);
205extern void dscp_list_to_stream(FILE *);
206extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
207
208extern void enq_end(uschar *);
209extern BOOL enq_start(uschar *, unsigned);
210#ifndef DISABLE_EVENT
211extern uschar *event_raise(uschar *, const uschar *, uschar *);
212extern void msg_event_raise(const uschar *, const address_item *);
213#endif
214extern const uschar * exim_errstr(int);
215extern void exim_exit(int, const uschar *);
216extern void exim_nullstd(void);
217extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
218extern void exim_wait_tick(struct timeval *, int);
219extern int exp_bool(address_item *addr,
220 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
221 uschar *svalue, BOOL *rvalue);
222extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
223extern uschar *expand_file_big_buffer(const uschar *);
224extern uschar *expand_string(uschar *); /* public, cannot make const */
225extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
226extern uschar *expand_hide_passwords(uschar * );
227extern uschar *expand_string_copy(const uschar *);
228extern int_eximarith_t expand_string_integer(uschar *, BOOL);
229extern void modify_variable(uschar *, void *);
230
231extern BOOL fd_ready(int, int);
232
233extern int filter_interpret(uschar *, int, address_item **, uschar **);
234extern BOOL filter_personal(string_item *, BOOL);
235extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
236extern BOOL filter_system_interpret(address_item **, uschar **);
237
238extern uschar * fn_hdrs_added(void);
239
240extern void gstring_reset_unused(gstring *);
241
242extern void header_add(int, const char *, ...);
243extern int header_checkname(header_line *, BOOL);
244extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
245extern int host_address_extract_port(uschar *);
246extern uschar *host_and_ident(BOOL);
247extern int host_aton(const uschar *, int *);
248extern void host_build_hostlist(host_item **, const uschar *, BOOL);
249extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
250extern void host_build_log_info(void);
251extern void host_build_sender_fullhost(void);
252extern int host_find_byname(host_item *, const uschar *, int,
253 const uschar **, BOOL);
254extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
255 uschar *, const dnssec_domains *, const uschar **, BOOL *);
256extern ip_address_item *host_find_interfaces(void);
257extern BOOL host_is_in_net(const uschar *, const uschar *, int);
258extern BOOL host_is_tls_on_connect_port(int);
259extern int host_item_get_port(host_item *);
260extern void host_mask(int, int *, int);
261extern int host_name_lookup(void);
262extern int host_nmtoa(int, int *, int, uschar *, int);
263extern uschar *host_ntoa(int, const void *, uschar *, int *);
264extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
265
266extern uschar *imap_utf7_encode(uschar *, const uschar *,
267 uschar, uschar *, uschar **);
268
269extern void invert_address(uschar *, uschar *);
270extern int ip_addr(void *, int, const uschar *, int);
271extern int ip_bind(int, int, uschar *, int);
272extern int ip_connect(int, int, const uschar *, int, int, const blob *);
273extern int ip_connectedsocket(int, const uschar *, int, int,
274 int, host_item *, uschar **, const blob *);
275extern int ip_get_address_family(int);
276extern void ip_keepalive(int, const uschar *, BOOL);
277extern int ip_recv(client_conn_ctx *, uschar *, int, int);
278extern int ip_socket(int, int);
279
280extern int ip_tcpsocket(const uschar *, uschar **, int);
281extern int ip_unixsocket(const uschar *, uschar **);
282extern int ip_streamsocket(const uschar *, uschar **, int);
283
284extern int ipv6_nmtoa(int *, uschar *);
285
286extern uschar *local_part_quote(uschar *);
287extern int log_create(uschar *);
288extern int log_create_as_exim(uschar *);
289extern void log_close_all(void);
290
291extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
292extern BOOL macro_read_assignment(uschar *);
293extern uschar *macros_expand(int, int *, BOOL *);
294extern void mainlog_close(void);
295#ifdef WITH_CONTENT_SCAN
296extern int malware(const uschar *, int);
297extern int malware_in_file(uschar *);
298extern void malware_init(void);
299extern void malware_show_supported(FILE *);
300#endif
301extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
302 unsigned int *, int, int, const uschar **);
303extern int match_address_list_basic(const uschar *, const uschar **, int);
304extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
305 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
306 const uschar *, const uschar **);
307extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
308 unsigned int *, int, BOOL, const uschar **);
309extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
310 const uschar **);
311extern void md5_end(md5 *, const uschar *, int, uschar *);
312extern void md5_mid(md5 *, const uschar *);
313extern void md5_start(md5 *);
314extern void millisleep(int);
315#ifdef WITH_CONTENT_SCAN
316struct mime_boundary_context;
317extern int mime_acl_check(uschar *acl, FILE *f,
318 struct mime_boundary_context *, uschar **, uschar **);
319extern int mime_decode(const uschar **);
320extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
321extern int mime_regex(const uschar **);
322extern void mime_set_anomaly(int);
323#endif
324extern uschar *moan_check_errorcopy(uschar *);
325extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
326 BOOL, uschar *);
327extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
328extern BOOL moan_send_message(uschar *, int, error_block *eblock,
329 header_line *, FILE *, uschar *);
330extern void moan_tell_someone(uschar *, address_item *,
331 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
332extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
333extern void moan_write_from(FILE *);
334extern FILE *modefopen(const uschar *, const char *, mode_t);
335
336extern int open_cutthrough_connection( address_item * addr );
337
338extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
339 BOOL);
340extern int parse_forward_list(uschar *, int, address_item **, uschar **,
341 const uschar *, uschar *, error_block **);
342extern uschar *parse_find_address_end(uschar *, BOOL);
343extern uschar *parse_find_at(uschar *);
344extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
345extern uschar *parse_message_id(uschar *, uschar **, uschar **);
346extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
347extern uschar *parse_date_time(uschar *str, time_t *t);
348extern int vaguely_random_number(int);
349#ifdef SUPPORT_TLS
350extern int vaguely_random_number_fallback(int);
351#endif
352
353extern BOOL queue_action(uschar *, int, uschar **, int, int);
354extern void queue_check_only(void);
355extern void queue_list(int, uschar **, int);
356extern void queue_count(void);
357extern void queue_run(uschar *, uschar *, BOOL);
358
359extern int random_number(int);
360extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
361 uschar *, uschar *, uschar *, ugid_block *, address_item **,
362 uschar **, error_block **, int *, uschar *);
363extern int rda_is_filter(const uschar *);
364extern BOOL readconf_depends(driver_instance *, uschar *);
365extern void readconf_driver_init(uschar *, driver_instance **,
366 driver_info *, int, void *, int, optionlist *, int);
367extern uschar *readconf_find_option(void *);
368extern void readconf_main(BOOL);
369extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
370extern BOOL readconf_print(uschar *, uschar *, BOOL);
371extern uschar *readconf_printtime(int);
372extern uschar *readconf_readname(uschar *, int, uschar *);
373extern int readconf_readtime(const uschar *, int, BOOL);
374extern void readconf_rest(void);
375extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
376extern void readconf_save_config(const uschar *);
377extern void read_message_body(BOOL);
378extern void receive_bomb_out(uschar *, uschar *);
379extern BOOL receive_check_fs(int);
380extern BOOL receive_check_set_sender(uschar *);
381extern BOOL receive_msg(BOOL);
382extern int_eximarith_t receive_statvfs(BOOL, int *);
383extern void receive_swallow_smtp(void);
384#ifdef WITH_CONTENT_SCAN
385extern int regex(const uschar **);
386#endif
387extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
388extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
389extern void retry_add_item(address_item *, uschar *, int);
390extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
391 uschar **, uschar **);
392extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
393extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
394 dbdata_retry *, time_t);
395extern void retry_update(address_item **, address_item **, address_item **);
396extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
397extern uschar *rewrite_address_qualify(uschar *, BOOL);
398extern header_line *rewrite_header(header_line *,
399 const uschar *, const uschar *,
400 rewrite_rule *, int, BOOL);
401extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
402 rewrite_rule *);
403extern void rewrite_test(uschar *);
404extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
405 uschar **);
406extern int route_address(address_item *, address_item **, address_item **,
407 address_item **, address_item **, int);
408extern int route_check_prefix(const uschar *, const uschar *);
409extern int route_check_suffix(const uschar *, const uschar *);
410extern BOOL route_findgroup(uschar *, gid_t *);
411extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
412extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
413 uschar **);
414extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
415 struct passwd **, uid_t *, uschar **);
416extern void route_init(void);
417extern void route_show_supported(FILE *);
418extern void route_tidyup(void);
419
420extern uschar *search_find(void *, uschar *, uschar *, int, const uschar *, int,
421 int, int *);
422extern int search_findtype(const uschar *, int);
423extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
424 int *);
425extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
426extern void search_tidyup(void);
427extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
428extern void sha1_end(hctx *, const uschar *, int, uschar *);
429extern void sha1_mid(hctx *, const uschar *);
430extern void sha1_start(hctx *);
431extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
432 uschar *, address_item **, uschar **);
433extern void sigalrm_handler(int);
434extern BOOL smtp_buffered(void);
435extern void smtp_closedown(uschar *);
436extern void smtp_command_timeout_exit(void);
437extern void smtp_command_sigterm_exit(void);
438extern void smtp_data_timeout_exit(void);
439extern void smtp_data_sigint_exit(void);
440extern uschar *smtp_cmd_hist(void);
441extern int smtp_connect(smtp_connect_args *, const blob *);
442extern int smtp_sock_connect(host_item *, int, int, uschar *,
443 transport_instance * tb, int, const blob *);
444extern int smtp_feof(void);
445extern int smtp_ferror(void);
446extern uschar *smtp_get_connection_info(void);
447extern BOOL smtp_get_interface(uschar *, int, address_item *,
448 uschar **, uschar *);
449extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
450extern int smtp_getc(unsigned);
451extern uschar *smtp_getbuf(unsigned *);
452extern void smtp_get_cache(void);
453extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
454extern void smtp_log_no_mail(void);
455extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
456extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int);
457extern BOOL smtp_read_response(void *, uschar *, int, int, int);
458extern void smtp_reset(void *);
459extern void smtp_respond(uschar *, int, BOOL, uschar *);
460extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
461extern void smtp_port_for_connect(host_item *, int);
462extern void smtp_send_prohibition_message(int, uschar *);
463extern int smtp_setup_msg(void);
464extern BOOL smtp_start_session(void);
465extern int smtp_ungetc(int);
466extern BOOL smtp_verify_helo(void);
467extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
468#ifdef WITH_CONTENT_SCAN
469extern int spam(const uschar **);
470extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
471#endif
472extern void spool_clear_header_globals(void);
473extern uschar *spool_dname(const uschar *, uschar *);
474extern uschar *spool_fname(const uschar *, const uschar *, const uschar *, const uschar *);
475extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
476extern int spool_open_datafile(uschar *);
477extern int spool_open_temp(uschar *);
478extern int spool_read_header(uschar *, BOOL, BOOL);
479extern uschar *spool_sname(const uschar *, uschar *);
480extern int spool_write_header(uschar *, int, uschar **);
481extern int stdin_getc(unsigned);
482extern int stdin_feof(void);
483extern int stdin_ferror(void);
484extern int stdin_ungetc(int);
485extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
486extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
487extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
488extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
489extern uschar *string_base62(unsigned long int);
490extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
491extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
492extern int string_compare_by_pointer(const void *, const void *);
493extern uschar *string_copy_dnsdomain(uschar *);
494extern uschar *string_copy_malloc(const uschar *);
495extern uschar *string_copylc(const uschar *);
496extern uschar *string_copynlc(uschar *, int);
497extern uschar *string_dequote(const uschar **);
498extern gstring *string_fmt_append(gstring *, const char *, ...) ALMOST_PRINTF(2,3);
499extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
500extern uschar *string_format_size(int, uschar *);
501extern uschar *string_from_gstring(gstring *);
502extern gstring *string_get(unsigned);
503extern int string_interpret_escape(const uschar **);
504extern int string_is_ip_address(const uschar *, int *);
505#ifdef SUPPORT_I18N
506extern BOOL string_is_utf8(const uschar *);
507#endif
508extern uschar *string_nextinlist(const uschar **, int *, uschar *, int);
509extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
510extern const uschar *string_printing2(const uschar *, BOOL);
511extern uschar *string_split_message(uschar *);
512extern uschar *string_timediff(struct timeval *);
513extern uschar *string_timesince(struct timeval *);
514extern uschar *string_unprinting(uschar *);
515#ifdef SUPPORT_I18N
516extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
517extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
518extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
519extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
520extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
521#endif
522extern gstring *string_vformat(gstring *, BOOL, const char *, va_list);
523extern int strcmpic(const uschar *, const uschar *);
524extern int strncmpic(const uschar *, const uschar *, int);
525extern uschar *strstric(uschar *, uschar *, BOOL);
526
527#ifdef EXIM_TFO_PROBE
528extern void tfo_probe(void);
529#endif
530extern void timesince(struct timeval * diff, struct timeval * then);
531extern void tls_modify_variables(tls_support *);
532extern uschar *tod_stamp(int);
533
534extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
535 BOOL *, oicf, void*);
536extern void transport_init(void);
537extern void transport_do_pass_socket(const uschar *, const uschar *,
538 const uschar *, uschar *, int);
539extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
540 int);
541extern uschar *transport_rcpt_address(address_item *, BOOL);
542extern BOOL transport_set_up_command(const uschar ***, uschar *,
543 BOOL, int, address_item *, uschar *, uschar **);
544extern void transport_update_waiting(host_item *, uschar *);
545extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
546extern void transport_write_reset(int);
547extern BOOL transport_write_string(int, const char *, ...);
548extern BOOL transport_headers_send(transport_ctx *,
549 BOOL (*)(transport_ctx *, uschar *, int));
550extern void transport_show_supported(FILE *);
551extern BOOL transport_write_message(transport_ctx *, int);
552extern void tree_add_duplicate(uschar *, address_item *);
553extern void tree_add_nonrecipient(uschar *);
554extern void tree_add_unusable(host_item *);
555extern int tree_insertnode(tree_node **, tree_node *);
556extern tree_node *tree_search(tree_node *, const uschar *);
557extern void tree_write(tree_node *, FILE *);
558extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
559
560#ifdef WITH_CONTENT_SCAN
561extern void unspool_mbox(void);
562#endif
563#ifdef SUPPORT_I18N
564extern void utf8_version_report(FILE *);
565#endif
566
567extern int verify_address(address_item *, FILE *, int, int, int, int,
568 uschar *, uschar *, BOOL *);
569extern int verify_check_dnsbl(int, const uschar **, uschar **);
570extern int verify_check_header_address(uschar **, uschar **, int, int, int,
571 uschar *, uschar *, int, int *);
572extern int verify_check_headers(uschar **);
573extern int verify_check_header_names_ascii(uschar **);
574extern int verify_check_host(uschar **);
575extern int verify_check_notblind(void);
576extern int verify_check_given_host(const uschar **, const host_item *);
577extern int verify_check_this_host(const uschar **, unsigned int *,
578 const uschar*, const uschar *, const uschar **);
579extern address_item *verify_checked_sender(uschar *);
580extern void verify_get_ident(int);
581extern BOOL verify_sender(int *, uschar **);
582extern BOOL verify_sender_preliminary(int *, uschar **);
583extern void version_init(void);
584
585extern BOOL write_chunk(transport_ctx *, uschar *, int);
586extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
587
588
589/* vi: aw
590*/
591/* End of functions.h */
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