1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2014 */
6 /* See the file NOTICE for conditions of use and distribution. */
9 /* Prototypes for functions that appear in various modules. Gathered together
10 to avoid having a lot of tiddly little headers with only a couple of lines in
11 them. However, some functions that are used (or not used) by utility programs
12 are in in fact in separate headers. */
16 extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
18 extern void cleanup_perl(void);
19 extern uschar *init_perl(uschar *);
25 std_dh_prime_default(void);
27 std_dh_prime_named(const uschar *);
29 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
30 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
31 extern uschar * tls_cert_issuer(void *, uschar * mod);
32 extern uschar * tls_cert_not_before(void *, uschar * mod);
33 extern uschar * tls_cert_not_after(void *, uschar * mod);
34 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
35 extern uschar * tls_cert_serial_number(void *, uschar * mod);
36 extern uschar * tls_cert_signature(void *, uschar * mod);
37 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
38 extern uschar * tls_cert_subject(void *, uschar * mod);
39 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
40 extern uschar * tls_cert_version(void *, uschar * mod);
42 extern int tls_client_start(int, host_item *, address_item *,
44 extern void tls_close(BOOL, BOOL);
45 extern int tls_export_cert(uschar *, size_t, void *);
46 extern int tls_feof(void);
47 extern int tls_ferror(void);
48 extern void tls_free_cert(void *);
49 extern int tls_getc(void);
50 extern int tls_import_cert(const uschar *, void **);
51 extern int tls_read(BOOL, uschar *, size_t);
52 extern int tls_server_start(const uschar *);
53 extern BOOL tls_smtp_buffered(void);
54 extern int tls_ungetc(int);
55 extern int tls_write(BOOL, const uschar *, size_t);
56 extern uschar *tls_validate_require_cipher(void);
57 extern void tls_version_report(FILE *);
59 extern BOOL tls_openssl_options_parse(uschar *, long *);
61 #endif /*SUPPORT_TLS*/
64 /* Everything else... */
66 extern acl_block *acl_read(uschar *(*)(void), uschar **);
67 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
68 extern int acl_eval(int, uschar *, uschar **, uschar **);
70 extern tree_node *acl_var_create(uschar *);
71 extern void acl_var_write(uschar *, uschar *, void *);
72 extern uschar *auth_b64encode(uschar *, int);
73 extern int auth_b64decode(uschar *, uschar **);
74 extern int auth_call_pam(uschar *, uschar **);
75 extern int auth_call_pwcheck(uschar *, uschar **);
76 extern int auth_call_radius(uschar *, uschar **);
77 extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
79 extern int auth_check_serv_cond(auth_instance *);
80 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
82 extern int auth_get_data(uschar **, uschar *, int);
83 extern int auth_get_no64_data(uschar **, uschar *);
84 extern uschar *auth_xtextencode(uschar *, int);
85 extern int auth_xtextdecode(uschar *, uschar **);
87 extern void cancel_cutthrough_connection(const char *);
88 extern int check_host(void *, uschar *, uschar **, uschar **);
89 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
90 extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
91 int *, int *, uschar *, BOOL);
92 extern uschar *cutthrough_finaldot(void);
93 extern BOOL cutthrough_flush_send(void);
94 extern BOOL cutthrough_headers_send(void);
95 extern BOOL cutthrough_predata(void);
96 extern BOOL cutthrough_puts(uschar *, int);
97 extern BOOL cutthrough_put_nl(void);
99 extern void daemon_go(void);
101 #ifdef EXPERIMENTAL_DCC
102 extern int dcc_process(uschar **);
105 extern void debug_logging_activate(uschar *, uschar *);
106 extern void debug_print_argv(uschar **);
107 extern void debug_print_ids(uschar *);
108 extern void debug_print_string(uschar *);
109 extern void debug_print_tree(tree_node *);
110 extern void debug_vprintf(const char *, va_list);
111 extern void decode_bits(unsigned int *, unsigned int *,
112 int, int, uschar *, bit_table *, int, uschar *, int);
113 extern address_item *deliver_make_addr(uschar *, BOOL);
114 extern void delivery_log(int, address_item *, int, uschar *);
115 extern int deliver_message(uschar *, BOOL, BOOL);
116 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
117 extern void deliver_set_expansions(address_item *);
118 extern int deliver_split_address(address_item *);
119 extern void deliver_succeeded(address_item *);
120 #ifdef WITH_OLD_DEMIME
121 extern int demime(uschar **);
123 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
125 extern BOOL dkim_transport_write_message(address_item *, int, int,
126 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
127 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
129 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
130 extern void dns_build_reverse(uschar *, uschar *);
131 extern void dns_init(BOOL, BOOL, BOOL);
132 extern int dns_basic_lookup(dns_answer *, uschar *, int);
133 extern BOOL dns_is_secure(dns_answer *);
134 extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
135 extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
136 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
137 extern uschar *dns_text_type(int);
138 extern void dscp_list_to_stream(FILE *);
139 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
141 extern void enq_end(uschar *);
142 extern BOOL enq_start(uschar *);
143 extern void exim_exit(int);
144 extern void exim_nullstd(void);
145 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
146 extern int exim_tvcmp(struct timeval *, struct timeval *);
147 extern void exim_wait_tick(struct timeval *, int);
148 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
149 extern uschar *expand_string(uschar *);
150 extern uschar *expand_string_copy(uschar *);
151 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
152 extern void modify_variable(uschar *, void *);
154 extern int filter_interpret(uschar *, int, address_item **, uschar **);
155 extern BOOL filter_personal(string_item *, BOOL);
156 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
157 extern BOOL filter_system_interpret(address_item **, uschar **);
159 extern uschar * fn_hdrs_added(void);
161 extern void header_add(int, const char *, ...);
162 extern int header_checkname(header_line *, BOOL);
163 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
164 extern int host_address_extract_port(uschar *);
165 extern uschar *host_and_ident(BOOL);
166 extern int host_aton(uschar *, int *);
167 extern void host_build_hostlist(host_item **, uschar *, BOOL);
168 extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
169 extern void host_build_log_info(void);
170 extern void host_build_sender_fullhost(void);
171 extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
172 extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
173 uschar *, uschar *, uschar *, uschar **, BOOL *);
174 extern ip_address_item *host_find_interfaces(void);
175 extern BOOL host_is_in_net(uschar *, uschar *, int);
176 extern BOOL host_is_tls_on_connect_port(int);
177 extern int host_item_get_port(host_item *);
178 extern void host_mask(int, int *, int);
179 extern int host_name_lookup(void);
180 extern int host_nmtoa(int, int *, int, uschar *, int);
181 extern uschar *host_ntoa(int, const void *, uschar *, int *);
182 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
184 extern void invert_address(uschar *, uschar *);
185 extern int ip_bind(int, int, uschar *, int);
186 extern int ip_connect(int, int, uschar *, int, int);
187 extern int ip_connectedsocket(int, const uschar *, int, int,
188 int, host_item *, uschar **);
189 extern int ip_get_address_family(int);
190 extern void ip_keepalive(int, uschar *, BOOL);
191 extern int ip_recv(int, uschar *, int, int);
192 extern int ip_socket(int, int);
194 extern uschar *local_part_quote(uschar *);
195 extern int log_create(uschar *);
196 extern int log_create_as_exim(uschar *);
197 extern void log_close_all(void);
199 #ifdef WITH_CONTENT_SCAN
200 extern int malware(uschar **);
201 extern int malware_in_file(uschar *);
203 extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
204 unsigned int *, int, int, uschar **);
205 extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
206 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
207 uschar *, uschar **);
208 extern int match_isinlist(uschar *, uschar **, int, tree_node **,
209 unsigned int *, int, BOOL, uschar **);
210 extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
212 extern void md5_end(md5 *, const uschar *, int, uschar *);
213 extern void md5_mid(md5 *, const uschar *);
214 extern void md5_start(md5 *);
215 extern void millisleep(int);
216 #ifdef WITH_CONTENT_SCAN
217 struct mime_boundary_context;
218 extern int mime_acl_check(uschar *acl, FILE *f,
219 struct mime_boundary_context *, uschar **, uschar **);
220 extern int mime_decode(uschar **);
221 extern int mime_regex(uschar **);
223 extern uschar *moan_check_errorcopy(uschar *);
224 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
226 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
227 extern void moan_tell_someone(uschar *, address_item *,
228 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
229 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
230 extern void moan_write_from(FILE *);
231 extern FILE *modefopen(const uschar *, const char *, mode_t);
233 extern void open_cutthrough_connection( address_item * addr );
235 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
237 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
238 uschar *, uschar *, error_block **);
239 extern uschar *parse_find_address_end(uschar *, BOOL);
240 extern uschar *parse_find_at(uschar *);
241 extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
242 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
243 extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
244 extern uschar *parse_date_time(uschar *str, time_t *t);
245 extern int vaguely_random_number(int);
247 extern int vaguely_random_number_fallback(int);
250 extern BOOL queue_action(uschar *, int, uschar **, int, int);
251 extern void queue_check_only(void);
252 extern void queue_list(int, uschar **, int);
253 extern void queue_count(void);
254 extern void queue_run(uschar *, uschar *, BOOL);
256 extern int random_number(int);
257 #ifdef WITH_CONTENT_SCAN
258 extern int recv_line(int, uschar *, int);
260 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
261 uschar *, uschar *, uschar *, ugid_block *, address_item **,
262 uschar **, error_block **, int *, uschar *);
263 extern int rda_is_filter(const uschar *);
264 extern BOOL readconf_depends(driver_instance *, uschar *);
265 extern void readconf_driver_init(uschar *, driver_instance **,
266 driver_info *, int, void *, int, optionlist *, int);
267 extern uschar *readconf_find_option(void *);
268 extern void readconf_main(void);
269 extern void readconf_print(uschar *, uschar *, BOOL);
270 extern uschar *readconf_printtime(int);
271 extern uschar *readconf_readname(uschar *, int, uschar *);
272 extern int readconf_readtime(uschar *, int, BOOL);
273 extern void readconf_rest();
274 extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
275 extern void read_message_body(BOOL);
276 extern void receive_bomb_out(uschar *, uschar *);
277 extern BOOL receive_check_fs(int);
278 extern BOOL receive_check_set_sender(uschar *);
279 extern BOOL receive_msg(BOOL);
280 extern int receive_statvfs(BOOL, int *);
281 extern void receive_swallow_smtp(void);
282 #ifdef WITH_CONTENT_SCAN
283 extern int regex(uschar **);
285 extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
286 extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
287 extern void retry_add_item(address_item *, uschar *, int);
288 extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
289 uschar **, uschar **);
290 extern retry_config *retry_find_config(uschar *, uschar *, int, int);
291 extern BOOL retry_ultimate_address_timeout(uschar *, uschar *,
292 dbdata_retry *, time_t);
293 extern void retry_update(address_item **, address_item **, address_item **);
294 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
295 extern uschar *rewrite_address_qualify(uschar *, BOOL);
296 extern header_line *rewrite_header(header_line *, uschar *, uschar *,
297 rewrite_rule *, int, BOOL);
298 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
300 extern void rewrite_test(uschar *);
301 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
303 extern int route_address(address_item *, address_item **, address_item **,
304 address_item **, address_item **, int);
305 extern int route_check_prefix(uschar *, uschar *);
306 extern int route_check_suffix(uschar *, uschar *);
307 extern BOOL route_findgroup(uschar *, gid_t *);
308 extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
309 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
311 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
312 struct passwd **, uid_t *, uschar **);
313 extern void route_init(void);
314 extern void route_tidyup(void);
316 extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
318 extern int search_findtype(uschar *, int);
319 extern int search_findtype_partial(uschar *, int *, uschar **, int *,
321 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
322 extern void search_tidyup(void);
323 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
324 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
325 extern void sha1_mid(sha1 *, const uschar *);
326 extern void sha1_start(sha1 *);
327 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
328 uschar *, address_item **, uschar **);
329 extern void sigalrm_handler(int);
330 extern BOOL smtp_buffered(void);
331 extern void smtp_closedown(uschar *);
332 extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL, const uschar *);
333 extern int smtp_feof(void);
334 extern int smtp_ferror(void);
335 extern uschar *smtp_get_connection_info(void);
336 extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
337 uschar **, uschar *);
338 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
339 extern int smtp_getc(void);
340 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
341 extern void smtp_log_no_mail(void);
342 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
343 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
344 extern void smtp_respond(uschar *, int, BOOL, uschar *);
345 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
346 extern void smtp_send_prohibition_message(int, uschar *);
347 extern int smtp_setup_msg(void);
348 extern BOOL smtp_start_session(void);
349 extern int smtp_ungetc(int);
350 extern BOOL smtp_verify_helo(void);
351 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
352 #ifdef WITH_CONTENT_SCAN
353 extern int spam(uschar **);
354 extern FILE *spool_mbox(unsigned long *, uschar *);
356 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
357 extern BOOL spool_open_datafile(uschar *);
358 extern int spool_open_temp(uschar *);
359 extern int spool_read_header(uschar *, BOOL, BOOL);
360 extern int spool_write_header(uschar *, int, uschar **);
361 extern int stdin_getc(void);
362 extern int stdin_feof(void);
363 extern int stdin_ferror(void);
364 extern int stdin_ungetc(int);
365 extern uschar *string_append(uschar *, int *, int *, int, ...);
366 extern uschar *string_append_listele(uschar *, uschar, const uschar *);
367 extern uschar *string_base62(unsigned long int);
368 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
369 extern uschar *string_copy_dnsdomain(uschar *);
370 extern uschar *string_copy_malloc(uschar *);
371 extern uschar *string_copylc(uschar *);
372 extern uschar *string_copynlc(uschar *, int);
373 extern uschar *string_dequote(uschar **);
374 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
375 extern uschar *string_format_size(int, uschar *);
376 extern int string_interpret_escape(uschar **);
377 extern int string_is_ip_address(const uschar *, int *);
378 extern uschar *string_log_address(address_item *, BOOL, BOOL);
379 extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
380 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
381 extern uschar *string_printing2(uschar *, BOOL);
382 extern uschar *string_split_message(uschar *);
383 extern uschar *string_unprinting(uschar *);
384 extern BOOL string_vformat(uschar *, int, const char *, va_list);
385 extern int strcmpic(const uschar *, const uschar *);
386 extern int strncmpic(const uschar *, const uschar *, int);
387 extern uschar *strstric(uschar *, uschar *, BOOL);
389 extern uschar *tod_stamp(int);
390 extern void tls_modify_variables(tls_support *);
391 extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
393 extern void transport_init(void);
394 extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
396 extern uschar *transport_rcpt_address(address_item *, BOOL);
397 extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
398 address_item *, uschar *, uschar **);
399 extern void transport_update_waiting(host_item *, uschar *);
400 extern BOOL transport_write_block(int, uschar *, int);
401 extern BOOL transport_write_string(int, const char *, ...);
402 extern BOOL transport_headers_send(address_item *, int, uschar *, uschar *,
403 BOOL (*)(int, uschar *, int, BOOL), BOOL, rewrite_rule *, int);
404 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
405 uschar *, uschar *, uschar *, rewrite_rule *, int);
406 extern void tree_add_duplicate(uschar *, address_item *);
407 extern void tree_add_nonrecipient(uschar *);
408 extern void tree_add_unusable(host_item *);
409 extern int tree_insertnode(tree_node **, tree_node *);
410 extern tree_node *tree_search(tree_node *, uschar *);
411 extern void tree_write(tree_node *, FILE *);
412 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
414 #ifdef WITH_CONTENT_SCAN
415 extern void unspool_mbox(void);
418 extern int verify_address(address_item *, FILE *, int, int, int, int,
419 uschar *, uschar *, BOOL *);
420 extern int verify_check_dnsbl(uschar **);
421 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
422 uschar *, uschar *, int, int *);
423 extern int verify_check_headers(uschar **);
424 extern int verify_check_header_names_ascii(uschar **);
425 extern int verify_check_host(uschar **);
426 extern int verify_check_notblind(void);
427 extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
428 uschar *, uschar **);
429 extern address_item *verify_checked_sender(uschar *);
430 extern void verify_get_ident(int);
431 extern BOOL verify_sender(int *, uschar **);
432 extern BOOL verify_sender_preliminary(int *, uschar **);
433 extern void version_init(void);
435 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
439 /* End of functions.h */