1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2012 */
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 *, uschar *,
29 uschar *, uschar *, uschar *, uschar *, uschar *, uschar *,
31 extern void tls_close(BOOL, BOOL);
32 extern int tls_feof(void);
33 extern int tls_ferror(void);
34 extern int tls_getc(void);
35 extern int tls_read(BOOL, uschar *, size_t);
36 extern int tls_server_start(const uschar *);
37 extern BOOL tls_smtp_buffered(void);
38 extern int tls_ungetc(int);
39 extern int tls_write(BOOL, const uschar *, size_t);
40 extern uschar *tls_validate_require_cipher(void);
41 extern void tls_version_report(FILE *);
43 extern BOOL tls_openssl_options_parse(uschar *, long *);
48 /* Everything else... */
50 extern acl_block *acl_read(uschar *(*)(void), uschar **);
51 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
52 extern int acl_check_args(int, address_item *, uschar *, int, uschar **, uschar **);
54 extern tree_node *acl_var_create(uschar *);
55 extern void acl_var_write(uschar *, uschar *, void *);
56 extern uschar *auth_b64encode(uschar *, int);
57 extern int auth_b64decode(uschar *, uschar **);
58 extern int auth_call_pam(uschar *, uschar **);
59 extern int auth_call_pwcheck(uschar *, uschar **);
60 extern int auth_call_radius(uschar *, uschar **);
61 extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
63 extern int auth_check_serv_cond(auth_instance *);
64 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
66 extern int auth_get_data(uschar **, uschar *, int);
67 extern int auth_get_no64_data(uschar **, uschar *);
68 extern uschar *auth_xtextencode(uschar *, int);
69 extern int auth_xtextdecode(uschar *, uschar **);
71 extern void cancel_cutthrough_connection(const char *);
72 extern int check_host(void *, uschar *, uschar **, uschar **);
73 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
74 extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
75 int *, int *, uschar *, BOOL);
76 extern uschar *cutthrough_finaldot(void);
77 extern BOOL cutthrough_flush_send(void);
78 extern BOOL cutthrough_headers_send(void);
79 extern BOOL cutthrough_predata(void);
80 extern BOOL cutthrough_puts(uschar *, int);
81 extern BOOL cutthrough_put_nl(void);
83 extern void daemon_go(void);
85 #ifdef EXPERIMENTAL_DCC
86 extern int dcc_process(uschar **);
89 extern void debug_logging_activate(uschar *, uschar *);
90 extern void debug_print_argv(uschar **);
91 extern void debug_print_ids(uschar *);
92 extern void debug_print_string(uschar *);
93 extern void debug_print_tree(tree_node *);
94 extern void debug_vprintf(const char *, va_list);
95 extern void decode_bits(unsigned int *, unsigned int *,
96 int, int, uschar *, bit_table *, int, uschar *, int);
97 extern address_item *deliver_make_addr(uschar *, BOOL);
98 extern void delivery_log(int, address_item *, int, uschar *);
99 extern int deliver_message(uschar *, BOOL, BOOL);
100 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
101 extern void deliver_set_expansions(address_item *);
102 extern int deliver_split_address(address_item *);
103 extern void deliver_succeeded(address_item *);
104 #ifdef WITH_OLD_DEMIME
105 extern int demime(uschar **);
107 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
109 extern BOOL dkim_transport_write_message(address_item *, int, int,
110 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
111 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
113 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
114 extern void dns_build_reverse(uschar *, uschar *);
115 extern void dns_init(BOOL, BOOL);
116 extern int dns_basic_lookup(dns_answer *, uschar *, int);
117 extern BOOL dns_is_secure(dns_answer *);
118 extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
119 extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
120 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
121 extern uschar *dns_text_type(int);
122 extern void dscp_list_to_stream(FILE *);
123 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
125 extern void enq_end(uschar *);
126 extern BOOL enq_start(uschar *);
127 extern void exim_exit(int);
128 extern void exim_nullstd(void);
129 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
130 extern int exim_tvcmp(struct timeval *, struct timeval *);
131 extern void exim_wait_tick(struct timeval *, int);
132 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
133 extern uschar *expand_string(uschar *);
134 extern uschar *expand_string_copy(uschar *);
135 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
136 extern void modify_variable(uschar *, void *);
138 extern int filter_interpret(uschar *, int, address_item **, uschar **);
139 extern BOOL filter_personal(string_item *, BOOL);
140 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
141 extern BOOL filter_system_interpret(address_item **, uschar **);
143 extern void header_add(int, const char *, ...);
144 extern int header_checkname(header_line *, BOOL);
145 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
146 extern int host_address_extract_port(uschar *);
147 extern uschar *host_and_ident(BOOL);
148 extern int host_aton(uschar *, int *);
149 extern void host_build_hostlist(host_item **, uschar *, BOOL);
150 extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
151 extern void host_build_log_info(void);
152 extern void host_build_sender_fullhost(void);
153 extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
154 extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
155 uschar *,uschar **, BOOL *);
156 extern ip_address_item *host_find_interfaces(void);
157 extern BOOL host_is_in_net(uschar *, uschar *, int);
158 extern BOOL host_is_tls_on_connect_port(int);
159 extern int host_item_get_port(host_item *);
160 extern void host_mask(int, int *, int);
161 extern int host_name_lookup(void);
162 extern int host_nmtoa(int, int *, int, uschar *, int);
163 extern uschar *host_ntoa(int, const void *, uschar *, int *);
164 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
166 extern void invert_address(uschar *, uschar *);
167 extern int ip_bind(int, int, uschar *, int);
168 extern int ip_connect(int, int, uschar *, int, int);
169 extern int ip_get_address_family(int);
170 extern void ip_keepalive(int, uschar *, BOOL);
171 extern int ip_recv(int, uschar *, int, int);
172 extern int ip_socket(int, int);
174 extern uschar *local_part_quote(uschar *);
175 extern int log_create_as_exim(uschar *);
176 extern void log_close_all(void);
178 #ifdef WITH_CONTENT_SCAN
179 extern int malware(uschar **);
180 extern int malware_in_file(uschar *);
182 extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
183 unsigned int *, int, int, uschar **);
184 extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
185 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
186 uschar *, uschar **);
187 extern int match_isinlist(uschar *, uschar **, int, tree_node **,
188 unsigned int *, int, BOOL, uschar **);
189 extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
191 extern void md5_end(md5 *, const uschar *, int, uschar *);
192 extern void md5_mid(md5 *, const uschar *);
193 extern void md5_start(md5 *);
194 extern void millisleep(int);
195 #ifdef WITH_CONTENT_SCAN
196 struct mime_boundary_context;
197 extern int mime_acl_check(uschar *acl, FILE *f,
198 struct mime_boundary_context *, uschar **, uschar **);
199 extern int mime_decode(uschar **);
200 extern int mime_regex(uschar **);
202 extern uschar *moan_check_errorcopy(uschar *);
203 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
205 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
206 extern void moan_tell_someone(uschar *, address_item *,
207 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
208 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
209 extern void moan_write_from(FILE *);
210 extern FILE *modefopen(const uschar *, const char *, mode_t);
212 extern void open_cutthrough_connection( address_item * addr );
214 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
216 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
217 uschar *, uschar *, error_block **);
218 extern uschar *parse_find_address_end(uschar *, BOOL);
219 extern uschar *parse_find_at(uschar *);
220 extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
221 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
222 extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
223 extern uschar *parse_date_time(uschar *str, time_t *t);
224 extern int vaguely_random_number(int);
226 extern int vaguely_random_number_fallback(int);
229 extern BOOL queue_action(uschar *, int, uschar **, int, int);
230 extern void queue_check_only(void);
231 extern void queue_list(int, uschar **, int);
232 extern void queue_count(void);
233 extern void queue_run(uschar *, uschar *, BOOL);
235 extern int random_number(int);
236 #ifdef WITH_CONTENT_SCAN
237 extern int recv_line(int, uschar *, int);
239 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
240 uschar *, uschar *, uschar *, ugid_block *, address_item **,
241 uschar **, error_block **, int *, uschar *);
242 extern int rda_is_filter(const uschar *);
243 extern BOOL readconf_depends(driver_instance *, uschar *);
244 extern void readconf_driver_init(uschar *, driver_instance **,
245 driver_info *, int, void *, int, optionlist *, int);
246 extern uschar *readconf_find_option(void *);
247 extern void readconf_main(void);
248 extern void readconf_print(uschar *, uschar *, BOOL);
249 extern uschar *readconf_printtime(int);
250 extern uschar *readconf_readname(uschar *, int, uschar *);
251 extern int readconf_readtime(uschar *, int, BOOL);
252 extern void readconf_rest(BOOL);
253 extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
254 extern void read_message_body(BOOL);
255 extern void receive_bomb_out(uschar *, uschar *);
256 extern BOOL receive_check_fs(int);
257 extern BOOL receive_check_set_sender(uschar *);
258 extern BOOL receive_msg(BOOL);
259 extern int receive_statvfs(BOOL, int *);
260 extern void receive_swallow_smtp(void);
261 #ifdef WITH_CONTENT_SCAN
262 extern int regex(uschar **);
264 extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
265 extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
266 extern void retry_add_item(address_item *, uschar *, int);
267 extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
268 uschar **, uschar **);
269 extern retry_config *retry_find_config(uschar *, uschar *, int, int);
270 extern void retry_update(address_item **, address_item **, address_item **);
271 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
272 extern uschar *rewrite_address_qualify(uschar *, BOOL);
273 extern header_line *rewrite_header(header_line *, uschar *, uschar *,
274 rewrite_rule *, int, BOOL);
275 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
277 extern void rewrite_test(uschar *);
278 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
280 extern int route_address(address_item *, address_item **, address_item **,
281 address_item **, address_item **, int);
282 extern int route_check_prefix(uschar *, uschar *);
283 extern int route_check_suffix(uschar *, uschar *);
284 extern BOOL route_findgroup(uschar *, gid_t *);
285 extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
286 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
288 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
289 struct passwd **, uid_t *, uschar **);
290 extern void route_init(void);
291 extern void route_tidyup(void);
293 extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
295 extern int search_findtype(uschar *, int);
296 extern int search_findtype_partial(uschar *, int *, uschar **, int *,
298 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
299 extern void search_tidyup(void);
300 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
301 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
302 extern void sha1_mid(sha1 *, const uschar *);
303 extern void sha1_start(sha1 *);
304 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
305 uschar *, address_item **, uschar **);
306 extern void sigalrm_handler(int);
307 extern BOOL smtp_buffered(void);
308 extern void smtp_closedown(uschar *);
309 extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL, const uschar *);
310 extern int smtp_feof(void);
311 extern int smtp_ferror(void);
312 extern uschar *smtp_get_connection_info(void);
313 extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
314 uschar **, uschar *);
315 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
316 extern int smtp_getc(void);
317 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
318 extern void smtp_log_no_mail(void);
319 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
320 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
321 extern void smtp_respond(uschar *, int, BOOL, uschar *);
322 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
323 extern void smtp_send_prohibition_message(int, uschar *);
324 extern int smtp_setup_msg(void);
325 extern BOOL smtp_start_session(void);
326 extern int smtp_ungetc(int);
327 extern BOOL smtp_verify_helo(void);
328 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...) PRINTF_FUNCTION(3,4);
329 #ifdef WITH_CONTENT_SCAN
330 extern int spam(uschar **);
331 extern FILE *spool_mbox(unsigned long *, uschar *);
333 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
334 extern BOOL spool_open_datafile(uschar *);
335 extern int spool_open_temp(uschar *);
336 extern int spool_read_header(uschar *, BOOL, BOOL);
337 extern int spool_write_header(uschar *, int, uschar **);
338 extern int stdin_getc(void);
339 extern int stdin_feof(void);
340 extern int stdin_ferror(void);
341 extern int stdin_ungetc(int);
342 extern uschar *string_append(uschar *, int *, int *, int, ...);
343 extern uschar *string_base62(unsigned long int);
344 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
345 extern uschar *string_copy_dnsdomain(uschar *);
346 extern uschar *string_copy_malloc(uschar *);
347 extern uschar *string_copylc(uschar *);
348 extern uschar *string_copynlc(uschar *, int);
349 extern uschar *string_dequote(uschar **);
350 extern BOOL string_format(uschar *, int, const char *, ...) ALMOST_PRINTF(3,4);
351 extern uschar *string_format_size(int, uschar *);
352 extern int string_interpret_escape(uschar **);
353 extern int string_is_ip_address(uschar *, int *);
354 extern uschar *string_log_address(address_item *, BOOL, BOOL);
355 extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
356 extern uschar *string_open_failed(int, const char *, ...) PRINTF_FUNCTION(2,3);
357 extern uschar *string_printing2(uschar *, BOOL);
358 extern uschar *string_split_message(uschar *);
359 extern uschar *string_unprinting(uschar *);
360 extern BOOL string_vformat(uschar *, int, const char *, va_list);
361 extern int strcmpic(const uschar *, const uschar *);
362 extern int strncmpic(const uschar *, const uschar *, int);
363 extern uschar *strstric(uschar *, uschar *, BOOL);
365 extern uschar *tod_stamp(int);
366 extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
368 extern void transport_init(void);
369 extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
371 extern uschar *transport_rcpt_address(address_item *, BOOL);
372 extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
373 address_item *, uschar *, uschar **);
374 extern void transport_update_waiting(host_item *, uschar *);
375 extern BOOL transport_write_block(int, uschar *, int);
376 extern BOOL transport_write_string(int, const char *, ...);
377 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
378 uschar *, uschar *, uschar *, rewrite_rule *, int);
379 extern void tree_add_duplicate(uschar *, address_item *);
380 extern void tree_add_nonrecipient(uschar *);
381 extern void tree_add_unusable(host_item *);
382 extern int tree_insertnode(tree_node **, tree_node *);
383 extern tree_node *tree_search(tree_node *, uschar *);
384 extern void tree_write(tree_node *, FILE *);
385 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
387 #ifdef WITH_CONTENT_SCAN
388 extern void unspool_mbox(void);
391 extern int verify_address(address_item *, FILE *, int, int, int, int,
392 uschar *, uschar *, BOOL *);
393 extern int verify_check_dnsbl(uschar **);
394 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
395 uschar *, uschar *, int, int *);
396 extern int verify_check_headers(uschar **);
397 extern int verify_check_host(uschar **);
398 extern int verify_check_notblind(void);
399 extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
400 uschar *, uschar **);
401 extern address_item *verify_checked_sender(uschar *);
402 extern void verify_get_ident(int);
403 extern BOOL verify_sender(int *, uschar **);
404 extern BOOL verify_sender_preliminary(int *, uschar **);
405 extern void version_init(void);
407 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
409 /* End of functions.h */