1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2013 */
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 *);
28 extern int tls_client_start(int, host_item *, address_item *,
29 uschar *, uschar *, uschar *, uschar *, uschar *, uschar *,
30 # ifdef EXPERIMENTAL_OCSP
34 extern void tls_close(BOOL, BOOL);
35 extern int tls_feof(void);
36 extern int tls_ferror(void);
37 extern int tls_getc(void);
38 extern int tls_read(BOOL, uschar *, size_t);
39 extern int tls_server_start(const uschar *);
40 extern BOOL tls_smtp_buffered(void);
41 extern int tls_ungetc(int);
42 extern int tls_write(BOOL, const uschar *, size_t);
43 extern uschar *tls_validate_require_cipher(void);
44 extern void tls_version_report(FILE *);
46 extern BOOL tls_openssl_options_parse(uschar *, long *);
51 /* Everything else... */
53 extern acl_block *acl_read(uschar *(*)(void), uschar **);
54 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
55 extern int acl_eval(int, uschar *, uschar **, uschar **);
57 extern tree_node *acl_var_create(uschar *);
58 extern void acl_var_write(uschar *, uschar *, void *);
59 extern uschar *auth_b64encode(uschar *, int);
60 extern int auth_b64decode(uschar *, uschar **);
61 extern int auth_call_pam(uschar *, uschar **);
62 extern int auth_call_pwcheck(uschar *, uschar **);
63 extern int auth_call_radius(uschar *, uschar **);
64 extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
66 extern int auth_check_serv_cond(auth_instance *);
67 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
69 extern int auth_get_data(uschar **, uschar *, int);
70 extern int auth_get_no64_data(uschar **, uschar *);
71 extern uschar *auth_xtextencode(uschar *, int);
72 extern int auth_xtextdecode(uschar *, uschar **);
74 extern void cancel_cutthrough_connection(const char *);
75 extern int check_host(void *, uschar *, uschar **, uschar **);
76 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
77 extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
78 int *, int *, uschar *, BOOL);
79 extern uschar *cutthrough_finaldot(void);
80 extern BOOL cutthrough_flush_send(void);
81 extern BOOL cutthrough_headers_send(void);
82 extern BOOL cutthrough_predata(void);
83 extern BOOL cutthrough_puts(uschar *, int);
84 extern BOOL cutthrough_put_nl(void);
86 extern void daemon_go(void);
88 #ifdef EXPERIMENTAL_DCC
89 extern int dcc_process(uschar **);
92 extern void debug_logging_activate(uschar *, uschar *);
93 extern void debug_print_argv(uschar **);
94 extern void debug_print_ids(uschar *);
95 extern void debug_print_string(uschar *);
96 extern void debug_print_tree(tree_node *);
97 extern void debug_vprintf(const char *, va_list);
98 extern void decode_bits(unsigned int *, unsigned int *,
99 int, int, uschar *, bit_table *, int, uschar *, int);
100 extern address_item *deliver_make_addr(uschar *, BOOL);
101 extern void delivery_log(int, address_item *, int, uschar *);
102 extern int deliver_message(uschar *, BOOL, BOOL);
103 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
104 extern void deliver_set_expansions(address_item *);
105 extern int deliver_split_address(address_item *);
106 extern void deliver_succeeded(address_item *);
107 #ifdef WITH_OLD_DEMIME
108 extern int demime(uschar **);
110 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
112 extern BOOL dkim_transport_write_message(address_item *, int, int,
113 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
114 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
116 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
117 extern void dns_build_reverse(uschar *, uschar *);
118 extern void dns_init(BOOL, BOOL);
119 extern int dns_basic_lookup(dns_answer *, uschar *, int);
120 extern BOOL dns_is_secure(dns_answer *);
121 extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
122 extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
123 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
124 extern uschar *dns_text_type(int);
125 extern void dscp_list_to_stream(FILE *);
126 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
128 extern void enq_end(uschar *);
129 extern BOOL enq_start(uschar *);
130 extern void exim_exit(int);
131 extern void exim_nullstd(void);
132 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
133 extern int exim_tvcmp(struct timeval *, struct timeval *);
134 extern void exim_wait_tick(struct timeval *, int);
135 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
136 extern uschar *expand_string(uschar *);
137 extern uschar *expand_string_copy(uschar *);
138 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
139 extern void modify_variable(uschar *, void *);
141 extern int filter_interpret(uschar *, int, address_item **, uschar **);
142 extern BOOL filter_personal(string_item *, BOOL);
143 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
144 extern BOOL filter_system_interpret(address_item **, uschar **);
146 extern uschar * fn_hdrs_added(void);
148 extern void header_add(int, const char *, ...);
149 extern int header_checkname(header_line *, BOOL);
150 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
151 extern int host_address_extract_port(uschar *);
152 extern uschar *host_and_ident(BOOL);
153 extern int host_aton(uschar *, int *);
154 extern void host_build_hostlist(host_item **, uschar *, BOOL);
155 extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
156 extern void host_build_log_info(void);
157 extern void host_build_sender_fullhost(void);
158 extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
159 extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
160 uschar *,uschar **, BOOL *);
161 extern ip_address_item *host_find_interfaces(void);
162 extern BOOL host_is_in_net(uschar *, uschar *, int);
163 extern BOOL host_is_tls_on_connect_port(int);
164 extern int host_item_get_port(host_item *);
165 extern void host_mask(int, int *, int);
166 extern int host_name_lookup(void);
167 extern int host_nmtoa(int, int *, int, uschar *, int);
168 extern uschar *host_ntoa(int, const void *, uschar *, int *);
169 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
171 extern void invert_address(uschar *, uschar *);
172 extern int ip_bind(int, int, uschar *, int);
173 extern int ip_connect(int, int, uschar *, int, int);
174 extern int ip_get_address_family(int);
175 extern void ip_keepalive(int, uschar *, BOOL);
176 extern int ip_recv(int, uschar *, int, int);
177 extern int ip_socket(int, int);
179 extern uschar *local_part_quote(uschar *);
180 extern int log_create(uschar *);
181 extern int log_create_as_exim(uschar *);
182 extern void log_close_all(void);
184 #ifdef WITH_CONTENT_SCAN
185 extern int malware(uschar **);
186 extern int malware_in_file(uschar *);
188 extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
189 unsigned int *, int, int, uschar **);
190 extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
191 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
192 uschar *, uschar **);
193 extern int match_isinlist(uschar *, uschar **, int, tree_node **,
194 unsigned int *, int, BOOL, uschar **);
195 extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
197 extern void md5_end(md5 *, const uschar *, int, uschar *);
198 extern void md5_mid(md5 *, const uschar *);
199 extern void md5_start(md5 *);
200 extern void millisleep(int);
201 #ifdef WITH_CONTENT_SCAN
202 struct mime_boundary_context;
203 extern int mime_acl_check(uschar *acl, FILE *f,
204 struct mime_boundary_context *, uschar **, uschar **);
205 extern int mime_decode(uschar **);
206 extern int mime_regex(uschar **);
208 extern uschar *moan_check_errorcopy(uschar *);
209 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
211 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
212 extern void moan_tell_someone(uschar *, address_item *,
213 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
214 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
215 extern void moan_write_from(FILE *);
216 extern FILE *modefopen(const uschar *, const char *, mode_t);
218 extern void open_cutthrough_connection( address_item * addr );
220 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
222 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
223 uschar *, uschar *, error_block **);
224 extern uschar *parse_find_address_end(uschar *, BOOL);
225 extern uschar *parse_find_at(uschar *);
226 extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
227 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
228 extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
229 extern uschar *parse_date_time(uschar *str, time_t *t);
230 extern int vaguely_random_number(int);
232 extern int vaguely_random_number_fallback(int);
235 extern BOOL queue_action(uschar *, int, uschar **, int, int);
236 extern void queue_check_only(void);
237 extern void queue_list(int, uschar **, int);
238 extern void queue_count(void);
239 extern void queue_run(uschar *, uschar *, BOOL);
241 extern int random_number(int);
242 #ifdef WITH_CONTENT_SCAN
243 extern int recv_line(int, uschar *, int);
245 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
246 uschar *, uschar *, uschar *, ugid_block *, address_item **,
247 uschar **, error_block **, int *, uschar *);
248 extern int rda_is_filter(const uschar *);
249 extern BOOL readconf_depends(driver_instance *, uschar *);
250 extern void readconf_driver_init(uschar *, driver_instance **,
251 driver_info *, int, void *, int, optionlist *, int);
252 extern uschar *readconf_find_option(void *);
253 extern void readconf_main(void);
254 extern void readconf_print(uschar *, uschar *, BOOL);
255 extern uschar *readconf_printtime(int);
256 extern uschar *readconf_readname(uschar *, int, uschar *);
257 extern int readconf_readtime(uschar *, int, BOOL);
258 extern void readconf_rest();
259 extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
260 extern void read_message_body(BOOL);
261 extern void receive_bomb_out(uschar *, uschar *);
262 extern BOOL receive_check_fs(int);
263 extern BOOL receive_check_set_sender(uschar *);
264 extern BOOL receive_msg(BOOL);
265 extern int receive_statvfs(BOOL, int *);
266 extern void receive_swallow_smtp(void);
267 #ifdef WITH_CONTENT_SCAN
268 extern int regex(uschar **);
270 extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
271 extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
272 extern void retry_add_item(address_item *, uschar *, int);
273 extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
274 uschar **, uschar **);
275 extern retry_config *retry_find_config(uschar *, uschar *, int, int);
276 extern BOOL retry_ultimate_address_timeout(uschar *, uschar *,
277 dbdata_retry *, time_t);
278 extern void retry_update(address_item **, address_item **, address_item **);
279 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
280 extern uschar *rewrite_address_qualify(uschar *, BOOL);
281 extern header_line *rewrite_header(header_line *, uschar *, uschar *,
282 rewrite_rule *, int, BOOL);
283 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
285 extern void rewrite_test(uschar *);
286 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
288 extern int route_address(address_item *, address_item **, address_item **,
289 address_item **, address_item **, int);
290 extern int route_check_prefix(uschar *, uschar *);
291 extern int route_check_suffix(uschar *, uschar *);
292 extern BOOL route_findgroup(uschar *, gid_t *);
293 extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
294 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
296 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
297 struct passwd **, uid_t *, uschar **);
298 extern void route_init(void);
299 extern void route_tidyup(void);
301 extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
303 extern int search_findtype(uschar *, int);
304 extern int search_findtype_partial(uschar *, int *, uschar **, int *,
306 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
307 extern void search_tidyup(void);
308 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
309 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
310 extern void sha1_mid(sha1 *, const uschar *);
311 extern void sha1_start(sha1 *);
312 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
313 uschar *, address_item **, uschar **);
314 extern void sigalrm_handler(int);
315 extern BOOL smtp_buffered(void);
316 extern void smtp_closedown(uschar *);
317 extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL, const uschar *);
318 extern int smtp_feof(void);
319 extern int smtp_ferror(void);
320 extern uschar *smtp_get_connection_info(void);
321 extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
322 uschar **, uschar *);
323 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
324 extern int smtp_getc(void);
325 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
326 extern void smtp_log_no_mail(void);
327 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
328 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
329 extern void smtp_respond(uschar *, int, BOOL, uschar *);
330 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
331 extern void smtp_send_prohibition_message(int, uschar *);
332 extern int smtp_setup_msg(void);
333 extern BOOL smtp_start_session(void);
334 extern int smtp_ungetc(int);
335 extern BOOL smtp_verify_helo(void);
336 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
337 #ifdef WITH_CONTENT_SCAN
338 extern int spam(uschar **);
339 extern FILE *spool_mbox(unsigned long *, uschar *);
341 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
342 extern BOOL spool_open_datafile(uschar *);
343 extern int spool_open_temp(uschar *);
344 extern int spool_read_header(uschar *, BOOL, BOOL);
345 extern int spool_write_header(uschar *, int, uschar **);
346 extern int stdin_getc(void);
347 extern int stdin_feof(void);
348 extern int stdin_ferror(void);
349 extern int stdin_ungetc(int);
350 extern uschar *string_append(uschar *, int *, int *, int, ...);
351 extern uschar *string_base62(unsigned long int);
352 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
353 extern uschar *string_copy_dnsdomain(uschar *);
354 extern uschar *string_copy_malloc(uschar *);
355 extern uschar *string_copylc(uschar *);
356 extern uschar *string_copynlc(uschar *, int);
357 extern uschar *string_dequote(uschar **);
358 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
359 extern uschar *string_format_size(int, uschar *);
360 extern int string_interpret_escape(uschar **);
361 extern int string_is_ip_address(uschar *, int *);
362 extern uschar *string_log_address(address_item *, BOOL, BOOL);
363 extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
364 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
365 extern uschar *string_printing2(uschar *, BOOL);
366 extern uschar *string_split_message(uschar *);
367 extern uschar *string_unprinting(uschar *);
368 extern BOOL string_vformat(uschar *, int, const char *, va_list);
369 extern int strcmpic(const uschar *, const uschar *);
370 extern int strncmpic(const uschar *, const uschar *, int);
371 extern uschar *strstric(uschar *, uschar *, BOOL);
373 extern uschar *tod_stamp(int);
374 extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
376 extern void transport_init(void);
377 extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
379 extern uschar *transport_rcpt_address(address_item *, BOOL);
380 extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
381 address_item *, uschar *, uschar **);
382 extern void transport_update_waiting(host_item *, uschar *);
383 extern BOOL transport_write_block(int, uschar *, int);
384 extern BOOL transport_write_string(int, const char *, ...);
385 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
386 uschar *, uschar *, uschar *, rewrite_rule *, int);
387 extern void tree_add_duplicate(uschar *, address_item *);
388 extern void tree_add_nonrecipient(uschar *);
389 extern void tree_add_unusable(host_item *);
390 extern int tree_insertnode(tree_node **, tree_node *);
391 extern tree_node *tree_search(tree_node *, uschar *);
392 extern void tree_write(tree_node *, FILE *);
393 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
395 #ifdef WITH_CONTENT_SCAN
396 extern void unspool_mbox(void);
399 extern int verify_address(address_item *, FILE *, int, int, int, int,
400 uschar *, uschar *, BOOL *);
401 extern int verify_check_dnsbl(uschar **);
402 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
403 uschar *, uschar *, int, int *);
404 extern int verify_check_headers(uschar **);
405 extern int verify_check_host(uschar **);
406 extern int verify_check_notblind(void);
407 extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
408 uschar *, uschar **);
409 extern address_item *verify_checked_sender(uschar *);
410 extern void verify_get_ident(int);
411 extern BOOL verify_sender(int *, uschar **);
412 extern BOOL verify_sender_preliminary(int *, uschar **);
413 extern void version_init(void);
415 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
417 /* End of functions.h */