1 /* $Cambridge: exim/src/src/functions.h,v 1.35 2007/02/06 11:11:40 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2007 */
8 /* See the file NOTICE for conditions of use and distribution. */
11 /* Prototypes for functions that appear in various modules. Gathered together
12 to avoid having a lot of tiddly little headers with only a couple of lines in
13 them. However, some functions that are used (or not used) by utility programs
14 are in in fact in separate headers. */
18 extern uschar *call_perl_cat(uschar *, int *, int *, uschar **, uschar *,
20 extern void cleanup_perl(void);
21 extern uschar *init_perl(uschar *);
26 extern int tls_client_start(int, host_item *, address_item *, uschar *,
27 uschar *, uschar *, uschar *, uschar *, uschar *, uschar *,
28 uschar *, uschar *, int);
29 extern void tls_close(BOOL);
30 extern int tls_feof(void);
31 extern int tls_ferror(void);
32 extern int tls_getc(void);
33 extern int tls_read(uschar *, size_t);
34 extern int tls_server_start(uschar *, uschar *, uschar *, uschar *);
35 extern int tls_ungetc(int);
36 extern int tls_write(const uschar *, size_t);
40 /* Everything else... */
42 extern acl_block *acl_read(uschar *(*)(void), uschar **);
43 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
44 extern tree_node *acl_var_create(uschar *);
45 extern void acl_var_write(uschar *, uschar *, void *);
46 extern uschar *auth_b64encode(uschar *, int);
47 extern int auth_b64decode(uschar *, uschar **);
48 extern int auth_call_pam(uschar *, uschar **);
49 extern int auth_call_pwcheck(uschar *, uschar **);
50 extern int auth_call_radius(uschar *, uschar **);
51 extern int auth_call_saslauthd(uschar *, uschar *, uschar *, uschar *,
53 extern int auth_check_serv_cond(auth_instance *);
54 extern int auth_get_data(uschar **, uschar *, int);
55 extern int auth_get_no64_data(uschar **, uschar *);
56 extern uschar *auth_xtextencode(uschar *, int);
57 extern int auth_xtextdecode(uschar *, uschar **);
59 extern int check_host(void *, uschar *, uschar **, uschar **);
60 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
61 extern pid_t child_open_uid(uschar **, uschar **, int, uid_t *, gid_t *,
62 int *, int *, uschar *, BOOL);
64 extern void daemon_go(void);
65 extern void debug_print_argv(uschar **);
66 extern void debug_print_ids(uschar *);
67 extern void debug_print_string(uschar *);
68 extern void debug_print_tree(tree_node *);
69 extern void debug_vprintf(char *, va_list);
70 extern address_item *deliver_make_addr(uschar *, BOOL);
71 extern int deliver_message(uschar *, BOOL, BOOL);
72 extern void deliver_msglog(const char *, ...);
73 extern void deliver_set_expansions(address_item *);
74 extern int deliver_split_address(address_item *);
75 extern void deliver_succeeded(address_item *);
76 #ifdef WITH_OLD_DEMIME
77 extern int demime(uschar **);
79 extern BOOL directory_make(uschar *, uschar *, int, BOOL);
80 #ifdef EXPERIMENTAL_DOMAINKEYS
81 extern BOOL dk_transport_write_message(address_item *, int, int,
82 int, uschar *, uschar *, uschar *, uschar *, rewrite_rule *,
83 int, uschar *, uschar *, uschar *, uschar *, uschar *, uschar *);
85 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
86 extern void dns_build_reverse(uschar *, uschar *);
87 extern void dns_init(BOOL, BOOL);
88 extern int dns_basic_lookup(dns_answer *, uschar *, int);
89 extern int dns_lookup(dns_answer *, uschar *, int, uschar **);
90 extern int dns_special_lookup(dns_answer *, uschar *, int, uschar **);
91 extern dns_record *dns_next_rr(dns_answer *, dns_scan *, int);
92 extern uschar *dns_text_type(int);
94 extern void enq_end(uschar *);
95 extern BOOL enq_start(uschar *);
96 extern void exim_exit(int);
97 extern void exim_nullstd(void);
98 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
99 extern int exim_tvcmp(struct timeval *, struct timeval *);
100 extern void exim_wait_tick(struct timeval *, int);
101 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
102 extern uschar *expand_string(uschar *);
103 extern uschar *expand_string_copy(uschar *);
104 extern int expand_string_integer(uschar *, BOOL);
106 extern int filter_interpret(uschar *, int, address_item **, uschar **);
107 extern BOOL filter_personal(string_item *, BOOL);
108 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
109 extern BOOL filter_system_interpret(address_item **, uschar **);
111 extern void header_add(int, char *, ...);
112 extern int header_checkname(header_line *, BOOL);
113 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
114 extern int host_address_extract_port(uschar *);
115 extern uschar *host_and_ident(BOOL);
116 extern int host_aton(uschar *, int *);
117 extern void host_build_hostlist(host_item **, uschar *, BOOL);
118 extern ip_address_item *host_build_ifacelist(uschar *, uschar *);
119 extern void host_build_log_info(void);
120 extern void host_build_sender_fullhost(void);
121 extern BOOL host_find_byname(host_item *, uschar *, int, uschar **, BOOL);
122 extern int host_find_bydns(host_item *, uschar *, int, uschar *, uschar *,
123 uschar *,uschar **, BOOL *);
124 extern ip_address_item *host_find_interfaces(void);
125 extern BOOL host_is_in_net(uschar *, uschar *, int);
126 extern BOOL host_is_tls_on_connect_port(int);
127 extern int host_item_get_port(host_item *);
128 extern void host_mask(int, int *, int);
129 extern int host_name_lookup(void);
130 extern int host_nmtoa(int, int *, int, uschar *, int);
131 extern uschar *host_ntoa(int, const void *, uschar *, int *);
132 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
134 extern int ip_bind(int, int, uschar *, int);
135 extern int ip_connect(int, int, uschar *, int, int);
136 extern void ip_keepalive(int, uschar *, BOOL);
137 extern int ip_recv(int, uschar *, int, int);
138 extern int ip_socket(int, int);
140 extern uschar *local_part_quote(uschar *lpart);
141 extern void log_close_all(void);
143 #ifdef WITH_CONTENT_SCAN
144 extern int malware(uschar **);
146 extern int match_address_list(uschar *, BOOL, BOOL, uschar **,
147 unsigned int *, int, int, uschar **);
148 extern int match_check_list(uschar **, int, tree_node **, unsigned int **,
149 int(*)(void *, uschar *, uschar **, uschar **), void *, int,
150 uschar *, uschar **);
151 extern int match_isinlist(uschar *, uschar **, int, tree_node **,
152 unsigned int *, int, BOOL, uschar **);
153 extern int match_check_string(uschar *, uschar *, int, BOOL, BOOL, BOOL,
155 extern void md5_end(md5 *, const uschar *, int, uschar *);
156 extern void md5_mid(md5 *, const uschar *);
157 extern void md5_start(md5 *);
158 extern void millisleep(int);
159 #ifdef WITH_CONTENT_SCAN
160 struct mime_boundary_context;
161 extern int mime_acl_check(uschar *acl, FILE *f,
162 struct mime_boundary_context *, uschar **, uschar **);
163 extern int mime_decode(uschar **);
164 extern int mime_regex(uschar **);
166 extern uschar *moan_check_errorcopy(uschar *);
167 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
169 extern void moan_smtp_batch(uschar *, char *, ...);
170 extern void moan_tell_someone(uschar *, address_item *, uschar *, char *,
172 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
173 extern void moan_write_from(FILE *);
174 extern FILE *modefopen(uschar *, char *, mode_t);
176 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
178 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
179 uschar *, uschar *, error_block **);
180 extern uschar *parse_find_address_end(uschar *, BOOL);
181 extern uschar *parse_find_at(uschar *);
182 extern uschar *parse_fix_phrase(uschar *, int, uschar *, int);
183 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
184 extern uschar *parse_quote_2047(uschar *, int, uschar *, uschar *, int, BOOL);
186 extern BOOL queue_action(uschar *, int, uschar **, int, int);
187 extern void queue_check_only(void);
188 extern void queue_list(int, uschar **, int);
189 extern void queue_count(void);
190 extern void queue_run(uschar *, uschar *, BOOL);
192 extern int random_number(int);
193 #ifdef WITH_CONTENT_SCAN
194 extern int recv_line(int, uschar *, int);
196 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
197 uschar *, uschar *, ugid_block *, address_item **, uschar **,
198 error_block **, int *, uschar *);
199 extern int rda_is_filter(const uschar *);
200 extern BOOL readconf_depends(driver_instance *, uschar *);
201 extern void readconf_driver_init(uschar *, driver_instance **,
202 driver_info *, int, void *, int, optionlist *, int);
203 extern uschar *readconf_find_option(void *);
204 extern void readconf_main(void);
205 extern void readconf_print(uschar *, uschar *);
206 extern uschar *readconf_printtime(int);
207 extern uschar *readconf_readname(uschar *, int, uschar *);
208 extern int readconf_readtime(uschar *, int, BOOL);
209 extern void readconf_rest(BOOL);
210 extern uschar *readconf_retry_error(uschar *, uschar *, int *, int *);
211 extern void read_message_body(BOOL);
212 extern void receive_bomb_out(uschar *);
213 extern BOOL receive_check_fs(int);
214 extern BOOL receive_check_set_sender(uschar *);
215 extern BOOL receive_msg(BOOL);
216 extern int receive_statvfs(BOOL, int *);
217 extern void receive_swallow_smtp(void);
218 #ifdef WITH_CONTENT_SCAN
219 extern int regex(uschar **);
221 extern BOOL regex_match_and_setup(const pcre *, uschar *, int, int);
222 extern const pcre *regex_must_compile(uschar *, BOOL, BOOL);
223 extern void retry_add_item(address_item *, uschar *, int);
224 extern BOOL retry_check_address(uschar *, host_item *, uschar *, BOOL,
225 uschar **, uschar **);
226 extern retry_config *retry_find_config(uschar *, uschar *, int, int);
227 extern void retry_update(address_item **, address_item **, address_item **);
228 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
229 extern uschar *rewrite_address_qualify(uschar *, BOOL);
230 extern header_line *rewrite_header(header_line *, uschar *, uschar *,
231 rewrite_rule *, int, BOOL);
232 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
234 extern void rewrite_test(uschar *);
235 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
237 extern int route_address(address_item *, address_item **, address_item **,
238 address_item **, address_item **, int);
239 extern int route_check_prefix(uschar *, uschar *);
240 extern int route_check_suffix(uschar *, uschar *);
241 extern BOOL route_findgroup(uschar *, gid_t *);
242 extern BOOL route_finduser(uschar *, struct passwd **, uid_t *);
243 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
245 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
246 struct passwd **, uid_t *, uschar **);
247 extern void route_init(void);
248 extern void route_tidyup(void);
250 extern uschar *search_find(void *, uschar *, uschar *, int, uschar *, int,
252 extern int search_findtype(uschar *, int);
253 extern int search_findtype_partial(uschar *, int *, uschar **, int *,
255 extern void *search_open(uschar *, int, int, uid_t *, gid_t *);
256 extern void search_tidyup(void);
257 extern void set_process_info(char *, ...);
258 extern void sha1_end(sha1 *, const uschar *, int, uschar *);
259 extern void sha1_mid(sha1 *, const uschar *);
260 extern void sha1_start(sha1 *);
261 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
262 address_item **, uschar **);
263 extern void sigalrm_handler(int);
264 extern void smtp_closedown(uschar *);
265 extern int smtp_connect(host_item *, int, int, uschar *, int, BOOL);
266 extern int smtp_feof(void);
267 extern int smtp_ferror(void);
268 extern uschar *smtp_get_connection_info(void);
269 extern BOOL smtp_get_interface(uschar *, int, address_item *, BOOL *,
270 uschar **, uschar *);
271 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
272 extern int smtp_getc(void);
273 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
274 extern void smtp_log_no_mail(void);
275 extern void smtp_message_code(uschar **, int *, uschar **, uschar **);
276 extern BOOL smtp_read_response(smtp_inblock *, uschar *, int, int, int);
277 extern void smtp_respond(uschar *, int, BOOL, uschar *);
278 extern void smtp_send_prohibition_message(int, uschar *);
279 extern int smtp_setup_msg(void);
280 extern BOOL smtp_start_session(void);
281 extern int smtp_ungetc(int);
282 extern BOOL smtp_verify_helo(void);
283 extern int smtp_write_command(smtp_outblock *, BOOL, char *, ...);
284 #ifdef WITH_CONTENT_SCAN
285 extern int spam(uschar **);
286 extern FILE *spool_mbox(unsigned long *);
288 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
289 extern BOOL spool_open_datafile(uschar *);
290 extern int spool_open_temp(uschar *);
291 extern int spool_read_header(uschar *, BOOL, BOOL);
292 extern int spool_write_header(uschar *, int, uschar **);
293 extern int stdin_getc(void);
294 extern int stdin_feof(void);
295 extern int stdin_ferror(void);
296 extern int stdin_ungetc(int);
297 extern uschar *string_append(uschar *, int *, int *, int, ...);
298 extern uschar *string_base62(unsigned long int);
299 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
300 extern uschar *string_copy_dnsdomain(uschar *);
301 extern uschar *string_copy_malloc(uschar *);
302 extern uschar *string_copylc(uschar *);
303 extern uschar *string_copynlc(uschar *, int);
304 extern uschar *string_dequote(uschar **);
305 extern BOOL string_format(uschar *, int, char *, ...);
306 extern uschar *string_format_size(int, uschar *);
307 extern int string_interpret_escape(uschar **);
308 extern int string_is_ip_address(uschar *, int *);
309 extern uschar *string_log_address(address_item *, BOOL, BOOL);
310 extern uschar *string_nextinlist(uschar **, int *, uschar *, int);
311 extern uschar *string_open_failed(int, char *, ...);
312 extern uschar *string_printing2(uschar *, BOOL);
313 extern BOOL string_vformat(uschar *, int, char *, va_list);
314 extern int strcmpic(uschar *, uschar *);
315 extern int strncmpic(uschar *, uschar *, int);
316 extern uschar *strstric(uschar *, uschar *, BOOL);
318 extern uschar *tod_stamp(int);
319 extern BOOL transport_check_waiting(uschar *, uschar *, int, uschar *,
321 extern void transport_init(void);
322 extern BOOL transport_pass_socket(uschar *, uschar *, uschar *, uschar *,
324 extern uschar *transport_rcpt_address(address_item *, BOOL);
325 extern BOOL transport_set_up_command(uschar ***, uschar *, BOOL, int,
326 address_item *, uschar *, uschar **);
327 extern void transport_update_waiting(host_item *, uschar *);
328 extern BOOL transport_write_block(int, uschar *, int);
329 extern BOOL transport_write_string(int, char *, ...);
330 extern BOOL transport_write_message(address_item *, int, int, int, uschar *,
331 uschar *, uschar *, uschar *, rewrite_rule *, int);
332 extern void tree_add_duplicate(uschar *, address_item *);
333 extern void tree_add_nonrecipient(uschar *);
334 extern void tree_add_unusable(host_item *);
335 extern int tree_insertnode(tree_node **, tree_node *);
336 extern tree_node *tree_search(tree_node *, uschar *);
337 extern void tree_write(tree_node *, FILE *);
338 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
340 #ifdef WITH_CONTENT_SCAN
341 extern void unspool_mbox(void);
344 extern int verify_address(address_item *, FILE *, int, int, int, int,
345 uschar *, uschar *, BOOL *);
346 extern int verify_check_dnsbl(uschar **);
347 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
348 uschar *, uschar *, int, int *);
349 extern int verify_check_headers(uschar **);
350 extern int verify_check_host(uschar **);
351 extern int verify_check_notblind(void);
352 extern int verify_check_this_host(uschar **, unsigned int *, uschar*,
353 uschar *, uschar **);
354 extern address_item *verify_checked_sender(uschar *);
355 extern void verify_get_ident(int);
356 extern BOOL verify_sender(int *, uschar **);
357 extern BOOL verify_sender_preliminary(int *, uschar **);
358 extern void version_init(void);
360 /* End of functions.h */