1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2009 */
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 *);
24 extern int tls_client_start(int, host_item *, address_item *, uschar *,
25 uschar *, uschar *, uschar *, uschar *, uschar *, uschar *,
26 uschar *, uschar *, int);
27 extern void tls_close(BOOL);
28 extern int tls_feof(void);
29 extern int tls_ferror(void);
30 extern int tls_getc(void);
31 extern int tls_read(uschar *, size_t);
32 extern int tls_server_start(uschar *, uschar *, uschar *, uschar *);
33 extern BOOL tls_smtp_buffered(void);
34 extern int tls_ungetc(int);
35 extern int tls_write(const uschar *, size_t);
36 extern void tls_version_report(FILE *);
38 extern BOOL tls_openssl_options_parse(uschar *, long *);
43 /* Everything else... */
45 extern acl_block *acl_read(uschar *(*)(void), uschar **);
46 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
47 extern tree_node *acl_var_create(uschar *);
48 extern void acl_var_write(uschar *, uschar *, void *);
49 extern uschar *auth_b64encode(uschar *, int);
50 extern int auth_b64decode(uschar *, uschar **);
51 extern int auth_call_pam(uschar *, uschar **);
52 extern int auth_call_pwcheck(uschar *, uschar **);
53 extern int auth_call_radius(uschar *, uschar **);
54 extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
56 extern int auth_check_serv_cond(auth_instance *);
57 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
59 extern int auth_get_data(uschar **, uschar *, int);
60 extern int auth_get_no64_data(uschar **, uschar *);
61 extern uschar *auth_xtextencode(uschar *, int);
62 extern int auth_xtextdecode(uschar *, uschar **);
64 extern int check_host(void *, uschar *, uschar **, uschar **);
65 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
66 extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
67 int *, int *, uschar *, BOOL);
69 extern void daemon_go(void);
71 #ifdef EXPERIMENTAL_DCC
72 extern int dcc_process(uschar **);
75 extern void debug_logging_activate(uschar *, uschar *);
76 extern void debug_print_argv(uschar **);
77 extern void debug_print_ids(uschar *);
78 extern void debug_print_string(uschar *);
79 extern void debug_print_tree(tree_node *);
80 extern void debug_vprintf(const char *, va_list);
81 extern void decode_bits(unsigned int *, unsigned int *,
82 int, int, uschar *, bit_table *, int, uschar *, int);
83 extern address_item *deliver_make_addr(uschar *, BOOL);
84 extern int deliver_message(uschar *, BOOL, BOOL);
85 extern void deliver_msglog(const char *, ...);
86 extern void deliver_set_expansions(address_item *);
87 extern int deliver_split_address(address_item *);
88 extern void deliver_succeeded(address_item *);
89 #ifdef WITH_OLD_DEMIME
90 extern int demime(uschar **);
92 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
94 extern BOOL dkim_transport_write_message(address_item *, int, int,
95 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
96 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
98 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
99 extern void dns_build_reverse(uschar *, uschar *);
100 extern void dns_init(BOOL, BOOL);
101 extern int dns_basic_lookup(dns_answer *, uschar *, int);
102 extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
103 extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
104 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
105 extern uschar *dns_text_type(int);
107 extern void enq_end(uschar *);
108 extern BOOL enq_start(uschar *);
109 extern void exim_exit(int);
110 extern void exim_nullstd(void);
111 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
112 extern int exim_tvcmp(struct timeval *, struct timeval *);
113 extern void exim_wait_tick(struct timeval *, int);
114 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
115 extern uschar *expand_string(uschar *);
116 extern uschar *expand_string_copy(uschar *);
117 extern int expand_string_integer(uschar *, BOOL);
119 extern int filter_interpret(uschar *, int, address_item **, uschar **);
120 extern BOOL filter_personal(string_item *, BOOL);
121 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
122 extern BOOL filter_system_interpret(address_item **, uschar **);
124 extern void header_add(int, const char *, ...);
125 extern int header_checkname(header_line *, BOOL);
126 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
127 extern int host_address_extract_port(uschar *);
128 extern uschar *host_and_ident(BOOL);
129 extern int host_aton(uschar *, int *);
130 extern void host_build_hostlist(host_item **, uschar *, BOOL);
131 extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
132 extern void host_build_log_info(void);
133 extern void host_build_sender_fullhost(void);
134 extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
135 extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
136 uschar *,uschar **, BOOL *);
137 extern ip_address_item *host_find_interfaces(void);
138 extern BOOL host_is_in_net(uschar *, uschar *, int);
139 extern BOOL host_is_tls_on_connect_port(int);
140 extern int host_item_get_port(host_item *);
141 extern void host_mask(int, int *, int);
142 extern int host_name_lookup(void);
143 extern int host_nmtoa(int, int *, int, uschar *, int);
144 extern uschar *host_ntoa(int, const void *, uschar *, int *);
145 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
147 extern void invert_address(uschar *, uschar *);
148 extern int ip_bind(int, int, uschar *, int);
149 extern int ip_connect(int, int, uschar *, int, int);
150 extern void ip_keepalive(int, uschar *, BOOL);
151 extern int ip_recv(int, uschar *, int, int);
152 extern int ip_socket(int, int);
154 extern uschar *local_part_quote(uschar *);
155 extern int log_create_as_exim(uschar *);
156 extern void log_close_all(void);
158 #ifdef WITH_CONTENT_SCAN
159 extern int malware(uschar **);
160 extern int malware_in_file(uschar *);
162 extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
163 unsigned int *, int, int, uschar **);
164 extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
165 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
166 uschar *, uschar **);
167 extern int match_isinlist(uschar *, uschar **, int, tree_node **,
168 unsigned int *, int, BOOL, uschar **);
169 extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
171 extern void md5_end(md5 *, const uschar *, int, uschar *);
172 extern void md5_mid(md5 *, const uschar *);
173 extern void md5_start(md5 *);
174 extern void millisleep(int);
175 #ifdef WITH_CONTENT_SCAN
176 struct mime_boundary_context;
177 extern int mime_acl_check(uschar *acl, FILE *f,
178 struct mime_boundary_context *, uschar **, uschar **);
179 extern int mime_decode(uschar **);
180 extern int mime_regex(uschar **);
182 extern uschar *moan_check_errorcopy(uschar *);
183 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
185 extern void moan_smtp_batch(uschar *, const char *, ...);
186 extern void moan_tell_someone(uschar *, address_item *,
187 const uschar *, const char *, ...);
188 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
189 extern void moan_write_from(FILE *);
190 extern FILE *modefopen(const uschar *, const char *, mode_t);
192 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
194 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
195 uschar *, uschar *, error_block **);
196 extern uschar *parse_find_address_end(uschar *, BOOL);
197 extern uschar *parse_find_at(uschar *);
198 extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
199 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
200 extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
201 extern uschar *parse_date_time(uschar *str, time_t *t);
202 extern int pseudo_random_number(int);
204 extern BOOL queue_action(uschar *, int, uschar **, int, int);
205 extern void queue_check_only(void);
206 extern void queue_list(int, uschar **, int);
207 extern void queue_count(void);
208 extern void queue_run(uschar *, uschar *, BOOL);
210 extern int random_number(int);
211 #ifdef WITH_CONTENT_SCAN
212 extern int recv_line(int, uschar *, int);
214 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
215 uschar *, uschar *, uschar *, ugid_block *, address_item **,
216 uschar **, error_block **, int *, uschar *);
217 extern int rda_is_filter(const uschar *);
218 extern BOOL readconf_depends(driver_instance *, uschar *);
219 extern void readconf_driver_init(uschar *, driver_instance **,
220 driver_info *, int, void *, int, optionlist *, int);
221 extern uschar *readconf_find_option(void *);
222 extern void readconf_main(void);
223 extern void readconf_print(uschar *, uschar *);
224 extern uschar *readconf_printtime(int);
225 extern uschar *readconf_readname(uschar *, int, uschar *);
226 extern int readconf_readtime(uschar *, int, BOOL);
227 extern void readconf_rest(BOOL);
228 extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
229 extern void read_message_body(BOOL);
230 extern void receive_bomb_out(uschar *, uschar *);
231 extern BOOL receive_check_fs(int);
232 extern BOOL receive_check_set_sender(uschar *);
233 extern BOOL receive_msg(BOOL);
234 extern int receive_statvfs(BOOL, int *);
235 extern void receive_swallow_smtp(void);
236 #ifdef WITH_CONTENT_SCAN
237 extern int regex(uschar **);
239 extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
240 extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
241 extern void retry_add_item(address_item *, uschar *, int);
242 extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
243 uschar **, uschar **);
244 extern retry_config *retry_find_config(uschar *, uschar *, int, int);
245 extern void retry_update(address_item **, address_item **, address_item **);
246 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
247 extern uschar *rewrite_address_qualify(uschar *, BOOL);
248 extern header_line *rewrite_header(header_line *, uschar *, uschar *,
249 rewrite_rule *, int, BOOL);
250 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
252 extern void rewrite_test(uschar *);
253 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
255 extern int route_address(address_item *, address_item **, address_item **,
256 address_item **, address_item **, int);
257 extern int route_check_prefix(uschar *, uschar *);
258 extern int route_check_suffix(uschar *, uschar *);
259 extern BOOL route_findgroup(uschar *, gid_t *);
260 extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
261 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
263 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
264 struct passwd **, uid_t *, uschar **);
265 extern void route_init(void);
266 extern void route_tidyup(void);
268 extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
270 extern int search_findtype(uschar *, int);
271 extern int search_findtype_partial(uschar *, int *, uschar **, int *,
273 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
274 extern void search_tidyup(void);
275 extern void set_process_info(const char *, ...);
276 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
277 extern void sha1_mid(sha1 *, const uschar *);
278 extern void sha1_start(sha1 *);
279 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
280 uschar *, address_item **, uschar **);
281 extern void sigalrm_handler(int);
282 extern BOOL smtp_buffered(void);
283 extern void smtp_closedown(uschar *);
284 extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL);
285 extern int smtp_feof(void);
286 extern int smtp_ferror(void);
287 extern uschar *smtp_get_connection_info(void);
288 extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
289 uschar **, uschar *);
290 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
291 extern int smtp_getc(void);
292 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
293 extern void smtp_log_no_mail(void);
294 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
295 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
296 extern void smtp_respond(uschar *, int, BOOL, uschar *);
297 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
298 extern void smtp_send_prohibition_message(int, uschar *);
299 extern int smtp_setup_msg(void);
300 extern BOOL smtp_start_session(void);
301 extern int smtp_ungetc(int);
302 extern BOOL smtp_verify_helo(void);
303 extern int smtp_write_command(smtp_outblock *, BOOL, const char *, ...);
304 #ifdef WITH_CONTENT_SCAN
305 extern int spam(uschar **);
306 extern FILE *spool_mbox(unsigned long *, uschar *);
308 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
309 extern BOOL spool_open_datafile(uschar *);
310 extern int spool_open_temp(uschar *);
311 extern int spool_read_header(uschar *, BOOL, BOOL);
312 extern int spool_write_header(uschar *, int, uschar **);
313 extern int stdin_getc(void);
314 extern int stdin_feof(void);
315 extern int stdin_ferror(void);
316 extern int stdin_ungetc(int);
317 extern uschar *string_append(uschar *, int *, int *, int, ...);
318 extern uschar *string_base62(unsigned long int);
319 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
320 extern uschar *string_copy_dnsdomain(uschar *);
321 extern uschar *string_copy_malloc(uschar *);
322 extern uschar *string_copylc(uschar *);
323 extern uschar *string_copynlc(uschar *, int);
324 extern uschar *string_dequote(uschar **);
325 extern BOOL string_format(uschar *, int, const char *, ...);
326 extern uschar *string_format_size(int, uschar *);
327 extern int string_interpret_escape(uschar **);
328 extern int string_is_ip_address(uschar *, int *);
329 extern uschar *string_log_address(address_item *, BOOL, BOOL);
330 extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
331 extern uschar *string_open_failed(int, const char *, ...);
332 extern uschar *string_printing2(uschar *, BOOL);
333 extern uschar *string_split_message(uschar *);
334 extern BOOL string_vformat(uschar *, int, const char *, va_list);
335 extern int strcmpic(const uschar *, const uschar *);
336 extern int strncmpic(const uschar *, const uschar *, int);
337 extern uschar *strstric(uschar *, uschar *, BOOL);
339 extern uschar *tod_stamp(int);
340 extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
342 extern void transport_init(void);
343 extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
345 extern uschar *transport_rcpt_address(address_item *, BOOL);
346 extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
347 address_item *, uschar *, uschar **);
348 extern void transport_update_waiting(host_item *, uschar *);
349 extern BOOL transport_write_block(int, uschar *, int);
350 extern BOOL transport_write_string(int, const char *, ...);
351 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
352 uschar *, uschar *, uschar *, rewrite_rule *, int);
353 extern void tree_add_duplicate(uschar *, address_item *);
354 extern void tree_add_nonrecipient(uschar *);
355 extern void tree_add_unusable(host_item *);
356 extern int tree_insertnode(tree_node **, tree_node *);
357 extern tree_node *tree_search(tree_node *, uschar *);
358 extern void tree_write(tree_node *, FILE *);
359 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
361 #ifdef WITH_CONTENT_SCAN
362 extern void unspool_mbox(void);
365 extern int verify_address(address_item *, FILE *, int, int, int, int,
366 uschar *, uschar *, BOOL *);
367 extern int verify_check_dnsbl(uschar **);
368 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
369 uschar *, uschar *, int, int *);
370 extern int verify_check_headers(uschar **);
371 extern int verify_check_host(uschar **);
372 extern int verify_check_notblind(void);
373 extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
374 uschar *, uschar **);
375 extern address_item *verify_checked_sender(uschar *);
376 extern void verify_get_ident(int);
377 extern BOOL verify_sender(int *, uschar **);
378 extern BOOL verify_sender_preliminary(int *, uschar **);
379 extern void version_init(void);
381 /* End of functions.h */