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Add debug for number of CA certs, for OpenSSL/file load
[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 - 2014 */
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_fprt_md5(void *);
43extern uschar * tls_cert_fprt_sha1(void *);
44extern uschar * tls_cert_fprt_sha256(void *);
45
46extern int tls_client_start(int, host_item *, address_item *,
47 transport_instance *
48#ifdef EXPERIMENTAL_DANE
49 , dns_answer *
50#endif
51 );
52extern void tls_close(BOOL, BOOL);
53extern int tls_export_cert(uschar *, size_t, void *);
54extern int tls_feof(void);
55extern int tls_ferror(void);
56extern void tls_free_cert(void *);
57extern int tls_getc(void);
58extern int tls_import_cert(const uschar *, void **);
59extern int tls_read(BOOL, uschar *, size_t);
60extern int tls_server_start(const uschar *);
61extern BOOL tls_smtp_buffered(void);
62extern int tls_ungetc(int);
63extern int tls_write(BOOL, const uschar *, size_t);
64extern uschar *tls_validate_require_cipher(void);
65extern void tls_version_report(FILE *);
66# ifndef USE_GNUTLS
67extern BOOL tls_openssl_options_parse(uschar *, long *);
68# endif
69extern uschar * tls_field_from_dn(uschar *, uschar *);
70# ifdef EXPERIMENTAL_CERTNAMES
71extern BOOL tls_is_name_for_cert(uschar *, void *);
72# endif
73
74# ifdef EXPERIMENTAL_DANE
75extern int tlsa_lookup(host_item *, dns_answer *, BOOL, BOOL *);
76# endif
77
78#endif /*SUPPORT_TLS*/
79
80
81/* Everything else... */
82
83extern acl_block *acl_read(uschar *(*)(void), uschar **);
84extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
85extern int acl_eval(int, uschar *, uschar **, uschar **);
86
87extern tree_node *acl_var_create(uschar *);
88extern void acl_var_write(uschar *, uschar *, void *);
89extern uschar *auth_b64encode(uschar *, int);
90extern int auth_b64decode(uschar *, uschar **);
91extern int auth_call_pam(uschar *, uschar **);
92extern int auth_call_pwcheck(uschar *, uschar **);
93extern int auth_call_radius(uschar *, uschar **);
94extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
95 uschar **);
96extern int auth_check_serv_cond(auth_instance *);
97extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
98
99extern int auth_get_data(uschar **, uschar *, int);
100extern int auth_get_no64_data(uschar **, uschar *);
101extern uschar *auth_xtextencode(uschar *, int);
102extern int auth_xtextdecode(uschar *, uschar **);
103
104extern void cancel_cutthrough_connection(const char *);
105extern int check_host(void *, uschar *, uschar **, uschar **);
106extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
107extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
108 int *, int *, uschar *, BOOL);
109extern uschar *cutthrough_finaldot(void);
110extern BOOL cutthrough_flush_send(void);
111extern BOOL cutthrough_headers_send(void);
112extern BOOL cutthrough_predata(void);
113extern BOOL cutthrough_puts(uschar *, int);
114extern BOOL cutthrough_put_nl(void);
115
116extern void daemon_go(void);
117
118#ifdef EXPERIMENTAL_DCC
119extern int dcc_process(uschar **);
120#endif
121
122extern void debug_logging_activate(uschar *, uschar *);
123extern void debug_print_argv(uschar **);
124extern void debug_print_ids(uschar *);
125extern void debug_print_string(uschar *);
126extern void debug_print_tree(tree_node *);
127extern void debug_vprintf(const char *, va_list);
128extern void decode_bits(unsigned int *, unsigned int *,
129 int, int, uschar *, bit_table *, int, uschar *, int);
130extern address_item *deliver_make_addr(uschar *, BOOL);
131extern void delivery_log(int, address_item *, int, uschar *);
132extern int deliver_message(uschar *, BOOL, BOOL);
133extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
134extern void deliver_set_expansions(address_item *);
135extern int deliver_split_address(address_item *);
136extern void deliver_succeeded(address_item *);
137#ifdef WITH_OLD_DEMIME
138extern int demime(uschar **);
139#endif
140extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
141#ifndef DISABLE_DKIM
142extern BOOL dkim_transport_write_message(address_item *, int, int,
143 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
144 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
145#endif
146extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
147extern void dns_build_reverse(uschar *, uschar *);
148extern void dns_init(BOOL, BOOL, BOOL);
149extern int dns_basic_lookup(dns_answer *, uschar *, int);
150extern BOOL dns_is_secure(dns_answer *);
151extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
152extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
153extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
154extern uschar *dns_text_type(int);
155extern void dscp_list_to_stream(FILE *);
156extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
157
158extern void enq_end(uschar *);
159extern BOOL enq_start(uschar *);
160extern void exim_exit(int);
161extern void exim_nullstd(void);
162extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
163extern int exim_tvcmp(struct timeval *, struct timeval *);
164extern void exim_wait_tick(struct timeval *, int);
165extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
166extern uschar *expand_string(uschar *);
167extern uschar *expand_string_copy(uschar *);
168extern int_eximarith_t expand_string_integer(uschar *, BOOL);
169extern void modify_variable(uschar *, void *);
170
171extern int filter_interpret(uschar *, int, address_item **, uschar **);
172extern BOOL filter_personal(string_item *, BOOL);
173extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
174extern BOOL filter_system_interpret(address_item **, uschar **);
175
176extern uschar * fn_hdrs_added(void);
177
178extern void header_add(int, const char *, ...);
179extern int header_checkname(header_line *, BOOL);
180extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
181extern int host_address_extract_port(uschar *);
182extern uschar *host_and_ident(BOOL);
183extern int host_aton(uschar *, int *);
184extern void host_build_hostlist(host_item **, uschar *, BOOL);
185extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
186extern void host_build_log_info(void);
187extern void host_build_sender_fullhost(void);
188extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
189extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
190 uschar *, uschar *, uschar *, uschar **, BOOL *);
191extern ip_address_item *host_find_interfaces(void);
192extern BOOL host_is_in_net(uschar *, uschar *, int);
193extern BOOL host_is_tls_on_connect_port(int);
194extern int host_item_get_port(host_item *);
195extern void host_mask(int, int *, int);
196extern int host_name_lookup(void);
197extern int host_nmtoa(int, int *, int, uschar *, int);
198extern uschar *host_ntoa(int, const void *, uschar *, int *);
199extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
200
201extern void invert_address(uschar *, uschar *);
202extern int ip_bind(int, int, uschar *, int);
203extern int ip_connect(int, int, uschar *, int, int);
204extern int ip_connectedsocket(int, const uschar *, int, int,
205 int, host_item *, uschar **);
206extern int ip_get_address_family(int);
207extern void ip_keepalive(int, uschar *, BOOL);
208extern int ip_recv(int, uschar *, int, int);
209extern int ip_socket(int, int);
210
211extern uschar *local_part_quote(uschar *);
212extern int log_create(uschar *);
213extern int log_create_as_exim(uschar *);
214extern void log_close_all(void);
215
216#ifdef WITH_CONTENT_SCAN
217extern int malware(uschar **);
218extern int malware_in_file(uschar *);
219#endif
220extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
221 unsigned int *, int, int, uschar **);
222extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
223 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
224 uschar *, uschar **);
225extern int match_isinlist(uschar *, uschar **, int, tree_node **,
226 unsigned int *, int, BOOL, uschar **);
227extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
228 uschar **);
229extern void md5_end(md5 *, const uschar *, int, uschar *);
230extern void md5_mid(md5 *, const uschar *);
231extern void md5_start(md5 *);
232extern void millisleep(int);
233#ifdef WITH_CONTENT_SCAN
234struct mime_boundary_context;
235extern int mime_acl_check(uschar *acl, FILE *f,
236 struct mime_boundary_context *, uschar **, uschar **);
237extern int mime_decode(uschar **);
238extern int mime_regex(uschar **);
239#endif
240extern uschar *moan_check_errorcopy(uschar *);
241extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
242 BOOL, uschar *);
243extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
244extern void moan_tell_someone(uschar *, address_item *,
245 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
246extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
247extern void moan_write_from(FILE *);
248extern FILE *modefopen(const uschar *, const char *, mode_t);
249
250extern void open_cutthrough_connection( address_item * addr );
251
252extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
253 BOOL);
254extern int parse_forward_list(uschar *, int, address_item **, uschar **,
255 uschar *, uschar *, error_block **);
256extern uschar *parse_find_address_end(uschar *, BOOL);
257extern uschar *parse_find_at(uschar *);
258extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
259extern uschar *parse_message_id(uschar *, uschar **, uschar **);
260extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
261extern uschar *parse_date_time(uschar *str, time_t *t);
262extern int vaguely_random_number(int);
263#ifdef SUPPORT_TLS
264extern int vaguely_random_number_fallback(int);
265#endif
266
267extern BOOL queue_action(uschar *, int, uschar **, int, int);
268extern void queue_check_only(void);
269extern void queue_list(int, uschar **, int);
270extern void queue_count(void);
271extern void queue_run(uschar *, uschar *, BOOL);
272
273extern int random_number(int);
274#ifdef WITH_CONTENT_SCAN
275extern int recv_line(int, uschar *, int);
276#endif
277extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
278 uschar *, uschar *, uschar *, ugid_block *, address_item **,
279 uschar **, error_block **, int *, uschar *);
280extern int rda_is_filter(const uschar *);
281extern BOOL readconf_depends(driver_instance *, uschar *);
282extern void readconf_driver_init(uschar *, driver_instance **,
283 driver_info *, int, void *, int, optionlist *, int);
284extern uschar *readconf_find_option(void *);
285extern void readconf_main(void);
286extern void readconf_print(uschar *, uschar *, BOOL);
287extern uschar *readconf_printtime(int);
288extern uschar *readconf_readname(uschar *, int, uschar *);
289extern int readconf_readtime(uschar *, int, BOOL);
290extern void readconf_rest();
291extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
292extern void read_message_body(BOOL);
293extern void receive_bomb_out(uschar *, uschar *);
294extern BOOL receive_check_fs(int);
295extern BOOL receive_check_set_sender(uschar *);
296extern BOOL receive_msg(BOOL);
297extern int receive_statvfs(BOOL, int *);
298extern void receive_swallow_smtp(void);
299#ifdef WITH_CONTENT_SCAN
300extern int regex(uschar **);
301#endif
302extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
303extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
304extern void retry_add_item(address_item *, uschar *, int);
305extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
306 uschar **, uschar **);
307extern retry_config *retry_find_config(uschar *, uschar *, int, int);
308extern BOOL retry_ultimate_address_timeout(uschar *, uschar *,
309 dbdata_retry *, time_t);
310extern void retry_update(address_item **, address_item **, address_item **);
311extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
312extern uschar *rewrite_address_qualify(uschar *, BOOL);
313extern header_line *rewrite_header(header_line *, uschar *, uschar *,
314 rewrite_rule *, int, BOOL);
315extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
316 rewrite_rule *);
317extern void rewrite_test(uschar *);
318extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
319 uschar **);
320extern int route_address(address_item *, address_item **, address_item **,
321 address_item **, address_item **, int);
322extern int route_check_prefix(uschar *, uschar *);
323extern int route_check_suffix(uschar *, uschar *);
324extern BOOL route_findgroup(uschar *, gid_t *);
325extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
326extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
327 uschar **);
328extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
329 struct passwd **, uid_t *, uschar **);
330extern void route_init(void);
331extern void route_tidyup(void);
332
333extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
334 int, int *);
335extern int search_findtype(uschar *, int);
336extern int search_findtype_partial(uschar *, int *, uschar **, int *,
337 int *);
338extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
339extern void search_tidyup(void);
340extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
341extern void sha1_end(sha1 *, const uschar *, int, uschar *);
342extern void sha1_mid(sha1 *, const uschar *);
343extern void sha1_start(sha1 *);
344extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
345 uschar *, address_item **, uschar **);
346extern void sigalrm_handler(int);
347extern BOOL smtp_buffered(void);
348extern void smtp_closedown(uschar *);
349extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL, const uschar *
350#ifdef EXPERIMENTAL_TPDA
351 , uschar *
352#endif
353 );
354extern int smtp_feof(void);
355extern int smtp_ferror(void);
356extern uschar *smtp_get_connection_info(void);
357extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
358 uschar **, uschar *);
359extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
360extern int smtp_getc(void);
361extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
362extern void smtp_log_no_mail(void);
363extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
364extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
365extern void smtp_respond(uschar *, int, BOOL, uschar *);
366extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
367extern void smtp_send_prohibition_message(int, uschar *);
368extern int smtp_setup_msg(void);
369extern BOOL smtp_start_session(void);
370extern int smtp_ungetc(int);
371extern BOOL smtp_verify_helo(void);
372extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
373#ifdef WITH_CONTENT_SCAN
374extern int spam(uschar **);
375extern FILE *spool_mbox(unsigned long *, uschar *);
376#endif
377extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
378extern BOOL spool_open_datafile(uschar *);
379extern int spool_open_temp(uschar *);
380extern int spool_read_header(uschar *, BOOL, BOOL);
381extern int spool_write_header(uschar *, int, uschar **);
382extern int stdin_getc(void);
383extern int stdin_feof(void);
384extern int stdin_ferror(void);
385extern int stdin_ungetc(int);
386extern uschar *string_append(uschar *, int *, int *, int, ...);
387extern uschar *string_append_listele(uschar *, uschar, const uschar *);
388extern uschar *string_base62(unsigned long int);
389extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
390extern uschar *string_copy_dnsdomain(uschar *);
391extern uschar *string_copy_malloc(uschar *);
392extern uschar *string_copylc(uschar *);
393extern uschar *string_copynlc(uschar *, int);
394extern uschar *string_dequote(uschar **);
395extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
396extern uschar *string_format_size(int, uschar *);
397extern int string_interpret_escape(uschar **);
398extern int string_is_ip_address(const uschar *, int *);
399extern uschar *string_log_address(address_item *, BOOL, BOOL);
400extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
401extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
402extern uschar *string_printing2(uschar *, BOOL);
403extern uschar *string_split_message(uschar *);
404extern uschar *string_unprinting(uschar *);
405extern BOOL string_vformat(uschar *, int, const char *, va_list);
406extern int strcmpic(const uschar *, const uschar *);
407extern int strncmpic(const uschar *, const uschar *, int);
408extern uschar *strstric(uschar *, uschar *, BOOL);
409
410extern uschar *tod_stamp(int);
411
412#ifdef EXPERIMENTAL_TPDA
413extern int tpda_raise_event(uschar *, uschar *, uschar *);
414#endif
415
416extern void tls_modify_variables(tls_support *);
417extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
418 BOOL *);
419extern void transport_init(void);
420extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
421 int);
422extern uschar *transport_rcpt_address(address_item *, BOOL);
423extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
424 address_item *, uschar *, uschar **);
425extern void transport_update_waiting(host_item *, uschar *);
426extern BOOL transport_write_block(int, uschar *, int);
427extern BOOL transport_write_string(int, const char *, ...);
428extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
429 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
430extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
431 uschar *, uschar *, uschar *, rewrite_rule *, int);
432extern void tree_add_duplicate(uschar *, address_item *);
433extern void tree_add_nonrecipient(uschar *);
434extern void tree_add_unusable(host_item *);
435extern int tree_insertnode(tree_node **, tree_node *);
436extern tree_node *tree_search(tree_node *, uschar *);
437extern void tree_write(tree_node *, FILE *);
438extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
439
440#ifdef WITH_CONTENT_SCAN
441extern void unspool_mbox(void);
442#endif
443
444extern int verify_address(address_item *, FILE *, int, int, int, int,
445 uschar *, uschar *, BOOL *);
446extern int verify_check_dnsbl(uschar **);
447extern int verify_check_header_address(uschar **, uschar **, int, int, int,
448 uschar *, uschar *, int, int *);
449extern int verify_check_headers(uschar **);
450extern int verify_check_header_names_ascii(uschar **);
451extern int verify_check_host(uschar **);
452extern int verify_check_notblind(void);
453extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
454 uschar *, uschar **);
455extern address_item *verify_checked_sender(uschar *);
456extern void verify_get_ident(int);
457extern BOOL verify_sender(int *, uschar **);
458extern BOOL verify_sender_preliminary(int *, uschar **);
459extern void version_init(void);
460
461extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
462
463/* vi: aw
464*/
465/* End of functions.h */
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