1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* Copyright (c) The Exim Maintainers 2020 - 2021 */
7 /* See the file NOTICE for conditions of use and distribution. */
10 /* Prototypes for functions that appear in various modules. Gathered together
11 to avoid having a lot of tiddly little headers with only a couple of lines in
12 them. However, some functions that are used (or not used) by utility programs
13 are in in fact in separate headers. */
22 extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
23 uschar **) WARN_UNUSED_RESULT;
24 extern void cleanup_perl(void);
25 extern uschar *init_perl(uschar *);
31 std_dh_prime_default(void);
33 std_dh_prime_named(const uschar *);
35 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
36 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
37 extern uschar * tls_cert_issuer(void *, uschar * mod);
38 extern uschar * tls_cert_not_before(void *, uschar * mod);
39 extern uschar * tls_cert_not_after(void *, uschar * mod);
40 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
41 extern uschar * tls_cert_serial_number(void *, uschar * mod);
42 extern uschar * tls_cert_signature(void *, uschar * mod);
43 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
44 extern uschar * tls_cert_subject(void *, uschar * mod);
45 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
46 extern uschar * tls_cert_version(void *, uschar * mod);
48 extern uschar * tls_cert_der_b64(void * cert);
49 extern uschar * tls_cert_fprt_md5(void *);
50 extern uschar * tls_cert_fprt_sha1(void *);
51 extern uschar * tls_cert_fprt_sha256(void *);
53 extern void tls_clean_env(void);
54 extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
55 void *, tls_support *, uschar **);
56 extern void tls_client_creds_reload(BOOL);
58 extern void tls_close(void *, int);
59 extern BOOL tls_could_getc(void);
60 extern void tls_daemon_init(void);
61 extern int tls_daemon_tick(void);
62 extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
63 extern BOOL tls_export_cert(uschar *, size_t, void *);
64 extern int tls_feof(void);
65 extern int tls_ferror(void);
66 extern uschar *tls_field_from_dn(uschar *, const uschar *);
67 extern void tls_free_cert(void **);
68 extern int tls_getc(unsigned);
69 extern uschar *tls_getbuf(unsigned *);
70 extern void tls_get_cache(unsigned);
71 extern BOOL tls_hasc(void);
72 extern BOOL tls_import_cert(const uschar *, void **);
73 extern BOOL tls_is_name_for_cert(const uschar *, void *);
75 extern BOOL tls_openssl_options_parse(uschar *, long *);
77 extern int tls_read(void *, uschar *, size_t);
78 extern int tls_server_start(uschar **);
79 extern void tls_shutdown_wr(void *);
80 extern BOOL tls_smtp_buffered(void);
81 extern int tls_ungetc(int);
82 #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT)
83 extern void tls_watch_discard_event(int);
84 extern void tls_watch_invalidate(void);
86 extern int tls_write(void *, const uschar *, size_t, BOOL);
87 extern uschar *tls_validate_require_cipher(void);
88 extern gstring *tls_version_report(gstring *);
91 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
94 #endif /*DISABLE_TLS*/
97 /* Everything else... */
99 extern acl_block *acl_read(uschar *(*)(void), uschar **);
100 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
101 extern uschar *acl_current_verb(void);
102 extern int acl_eval(int, uschar *, uschar **, uschar **);
104 extern tree_node *acl_var_create(uschar *);
105 extern void acl_var_write(uschar *, uschar *, void *);
107 #ifdef EXPERIMENTAL_ARC
108 extern void *arc_ams_setup_sign_bodyhash(void);
109 extern const uschar *arc_header_feed(gstring *, BOOL);
110 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
111 extern void arc_sign_init(void);
112 extern const uschar *acl_verify_arc(void);
113 extern uschar * fn_arc_domains(void);
116 extern void assert_no_variables(void *, int, const char *, int);
117 extern int auth_call_pam(const uschar *, uschar **);
118 extern int auth_call_pwcheck(uschar *, uschar **);
119 extern int auth_call_radius(const uschar *, uschar **);
120 extern int auth_call_saslauthd(const uschar *, const uschar *,
121 const uschar *, const uschar *, uschar **);
122 extern int auth_check_serv_cond(auth_instance *);
123 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
124 extern int auth_client_item(void *, auth_instance *, const uschar **,
125 unsigned, int, uschar *, int);
128 extern int auth_get_data(uschar **, const uschar *, int);
129 extern int auth_get_no64_data(uschar **, uschar *);
130 extern int auth_prompt(const uschar *);
131 extern int auth_read_input(const uschar *);
132 extern gstring * auth_show_supported(gstring *);
133 extern uschar *auth_xtextencode(uschar *, int);
134 extern int auth_xtextdecode(uschar *, uschar **);
135 extern uschar *authenticator_current_name(void);
137 #ifdef EXPERIMENTAL_ARC
138 extern gstring *authres_arc(gstring *);
141 extern gstring *authres_dkim(gstring *);
144 extern gstring *authres_dmarc(gstring *);
146 extern gstring *authres_smtpauth(gstring *);
148 extern gstring *authres_spf(gstring *);
151 extern uschar *b64encode(const uschar *, int);
152 extern uschar *b64encode_taint(const uschar *, int, const void *);
153 extern int b64decode(const uschar *, uschar **);
154 extern int bdat_getc(unsigned);
155 extern uschar *bdat_getbuf(unsigned *);
156 extern BOOL bdat_hasc(void);
157 extern int bdat_ungetc(int);
158 extern void bdat_flush_data(void);
160 extern void bits_clear(unsigned int *, size_t, int *);
161 extern void bits_set(unsigned int *, size_t, int *);
163 extern void cancel_cutthrough_connection(BOOL, const uschar *);
164 extern gstring *cat_file(FILE *, gstring *, uschar *);
165 extern gstring *cat_file_tls(void *, gstring *, uschar *);
166 extern int check_host(void *, const uschar *, const uschar **, uschar **);
167 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
168 extern pid_t child_open_exim_function(int *, const uschar *);
169 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
171 extern pid_t child_open_function(uschar **, uschar **, int,
172 int *, int *, BOOL, const uschar *);
173 extern pid_t child_open_uid(const uschar **, const uschar **, int,
174 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
175 extern BOOL cleanup_environment(void);
176 extern void cutthrough_data_puts(uschar *, int);
177 extern void cutthrough_data_put_nl(void);
178 extern uschar *cutthrough_finaldot(void);
179 extern BOOL cutthrough_flush_send(void);
180 extern BOOL cutthrough_headers_send(void);
181 extern BOOL cutthrough_predata(void);
182 extern void release_cutthrough_connection(const uschar *);
184 extern void daemon_go(void);
186 #ifdef EXPERIMENTAL_DCC
187 extern int dcc_process(uschar **);
190 extern void debug_logging_activate(uschar *, uschar *);
191 extern void debug_logging_stop(BOOL);
192 extern void debug_print_argv(const uschar **);
193 extern void debug_print_ids(uschar *);
194 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
195 extern void debug_print_string(uschar *);
196 extern void debug_print_tree(const char *, tree_node *);
197 extern void debug_vprintf(int, const char *, va_list);
198 extern void debug_pretrigger_setup(const uschar *);
199 extern void debug_pretrigger_discard(void);
200 extern void debug_print_socket(int);
201 extern void debug_trigger_fire(void);
203 extern void decode_bits(unsigned int *, size_t, int *,
204 uschar *, bit_table *, int, uschar *, int);
205 extern void delete_pid_file(void);
206 extern void deliver_local(address_item *, BOOL);
207 extern address_item *deliver_make_addr(uschar *, BOOL);
208 extern void delivery_log(int, address_item *, int, uschar *);
209 extern int deliver_message(uschar *, BOOL, BOOL);
210 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
211 extern void deliver_set_expansions(address_item *);
212 extern int deliver_split_address(address_item *);
213 extern void deliver_succeeded(address_item *);
215 extern void delivery_re_exec(int);
217 extern void die_tainted(const uschar *, const uschar *, int);
218 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
220 extern uschar *dkim_exim_query_dns_txt(const uschar *);
221 extern void dkim_exim_sign_init(void);
223 extern BOOL dkim_transport_write_message(transport_ctx *,
224 struct ob_dkim *, const uschar ** errstr);
226 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
227 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
228 extern uschar *dns_build_reverse(const uschar *);
229 extern time_t dns_expire_from_soa(dns_answer *, int);
230 extern void dns_init(BOOL, BOOL, BOOL);
231 extern BOOL dns_is_aa(const dns_answer *);
232 extern BOOL dns_is_secure(const dns_answer *);
233 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
234 extern void dns_pattern_init(void);
235 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
236 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
237 extern uschar *dns_text_type(int);
238 extern void dscp_list_to_stream(FILE *);
239 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
241 extern void enq_end(uschar *);
242 extern BOOL enq_start(uschar *, unsigned);
243 #ifndef DISABLE_EVENT
244 extern uschar *event_raise(uschar *, const uschar *, uschar *, int *);
245 extern void msg_event_raise(const uschar *, const address_item *);
248 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
249 extern const uschar * exim_errstr(int);
250 extern void exim_exit(int) NORETURN;
251 extern void exim_gettime(struct timeval *);
252 extern void exim_nullstd(void);
253 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
254 extern void exim_underbar_exit(int) NORETURN;
255 extern void exim_wait_tick(struct timeval *, int);
256 extern int exp_bool(address_item *addr,
257 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
258 uschar *svalue, BOOL *rvalue);
259 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
260 extern uschar *expand_file_big_buffer(const uschar *);
261 extern uschar *expand_string(uschar *); /* public, cannot make const */
262 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
263 extern uschar *expand_getkeyed(const uschar *, const uschar *);
265 extern uschar *expand_hide_passwords(uschar * );
266 extern uschar *expand_string_copy(const uschar *);
267 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
268 extern void modify_variable(uschar *, void *);
270 extern BOOL fd_ready(int, time_t);
272 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
273 extern BOOL filter_personal(string_item *, BOOL);
274 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
275 extern BOOL filter_system_interpret(address_item **, uschar **);
277 extern uschar * fn_hdrs_added(void);
278 extern void force_fd(int, int);
280 extern void header_add(int, const char *, ...);
281 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
282 extern int header_checkname(header_line *, BOOL);
283 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
284 extern int host_address_extract_port(uschar *);
285 extern uschar *host_and_ident(BOOL);
286 extern int host_aton(const uschar *, int *);
287 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
288 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
289 extern void host_build_log_info(void);
290 extern void host_build_sender_fullhost(void);
291 extern int host_find_byname(host_item *, const uschar *, int,
292 const uschar **, BOOL);
293 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
294 uschar *, const dnssec_domains *, const uschar **, BOOL *);
295 extern ip_address_item *host_find_interfaces(void);
296 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
297 extern BOOL host_is_tls_on_connect_port(int);
298 extern int host_item_get_port(host_item *);
299 extern void host_mask(int, int *, int);
300 extern int host_name_lookup(void);
301 extern int host_nmtoa(int, int *, int, uschar *, int);
302 extern uschar *host_ntoa(int, const void *, uschar *, int *);
303 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
305 extern uschar *imap_utf7_encode(uschar *, const uschar *,
306 uschar, uschar *, uschar **);
308 extern void invert_address(uschar *, uschar *);
309 extern int ip_addr(void *, int, const uschar *, int);
310 extern int ip_bind(int, int, uschar *, int);
311 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
312 extern int ip_connectedsocket(int, const uschar *, int, int,
313 int, host_item *, uschar **, const blob *);
314 extern int ip_get_address_family(int);
315 extern void ip_keepalive(int, const uschar *, BOOL);
316 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
317 extern int ip_socket(int, int);
319 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
320 extern int ip_unixsocket(const uschar *, uschar **);
321 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
323 extern int ipv6_nmtoa(int *, uschar *);
325 extern uschar *local_part_quote(uschar *);
326 extern int log_open_as_exim(uschar * const);
327 extern void log_close_all(void);
329 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
330 extern BOOL macro_read_assignment(uschar *);
331 extern uschar *macros_expand(int, int *, BOOL *);
332 extern void mainlog_close(void);
333 #ifdef WITH_CONTENT_SCAN
334 extern int malware(const uschar *, int);
335 extern int malware_in_file(uschar *);
336 extern void malware_init(void);
337 extern gstring * malware_show_supported(gstring *);
339 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
340 unsigned int *, int, int, const uschar **);
341 extern int match_address_list_basic(const uschar *, const uschar **, int);
342 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
343 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
344 const uschar *, const uschar **);
345 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
346 unsigned int *, int, BOOL, const uschar **);
347 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
350 extern void message_start(void);
351 extern void message_tidyup(void);
352 extern void md5_end(md5 *, const uschar *, int, uschar *);
353 extern void md5_mid(md5 *, const uschar *);
354 extern void md5_start(md5 *);
355 extern void millisleep(int);
356 #ifdef WITH_CONTENT_SCAN
357 struct mime_boundary_context;
358 extern int mime_acl_check(uschar *acl, FILE *f,
359 struct mime_boundary_context *, uschar **, uschar **);
360 extern int mime_decode(const uschar **);
361 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
362 extern int mime_regex(const uschar **);
363 extern void mime_set_anomaly(int);
365 extern uschar *moan_check_errorcopy(uschar *);
366 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
368 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
369 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
370 header_line *, FILE *, uschar *);
371 extern void moan_tell_someone(uschar *, address_item *,
372 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
373 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
374 extern void moan_write_from(FILE *);
375 extern void moan_write_references(FILE *, uschar *);
376 extern FILE *modefopen(const uschar *, const char *, mode_t);
378 extern int open_cutthrough_connection( address_item * addr );
380 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
382 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
383 const uschar *, const uschar *, error_block **);
384 extern uschar *parse_find_address_end(const uschar *, BOOL);
385 extern const uschar *parse_find_at(const uschar *);
386 extern const uschar *parse_fix_phrase(const uschar *, int);
387 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
388 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
390 extern const uschar *parse_date_time(const uschar *str, time_t *t);
391 extern void priv_drop_temp(const uid_t, const gid_t);
392 extern void priv_restore(void);
393 extern int vaguely_random_number(int);
395 extern int vaguely_random_number_fallback(int);
398 extern BOOL queue_action(uschar *, int, uschar **, int, int);
399 extern void queue_check_only(void);
400 extern unsigned queue_count(void);
401 extern unsigned queue_count_cached(void);
402 extern void queue_list(int, uschar **, int);
403 #ifndef DISABLE_QUEUE_RAMP
404 extern void queue_notify_daemon(const uschar * hostname);
406 extern void queue_run(uschar *, uschar *, BOOL);
408 extern int random_number(int);
409 extern const uschar *rc_to_string(int);
410 extern int rda_interpret(redirect_block *, int, const uschar *, const uschar *,
411 const uschar *, const uschar *, const uschar *, const ugid_block *, address_item **,
412 uschar **, error_block **, int *, const uschar *);
413 extern int rda_is_filter(const uschar *);
414 extern BOOL readconf_depends(driver_instance *, uschar *);
415 extern void readconf_driver_init(uschar *, driver_instance **,
416 driver_info *, int, void *, int, optionlist *, int);
417 extern uschar *readconf_find_option(void *);
418 extern void readconf_main(BOOL);
419 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
420 extern BOOL readconf_print(const uschar *, uschar *, BOOL);
421 extern uschar *readconf_printtime(int);
422 extern uschar *readconf_readname(uschar *, int, uschar *);
423 extern int readconf_readtime(const uschar *, int, BOOL);
424 extern void readconf_rest(void);
425 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
426 extern void readconf_save_config(const uschar *);
427 extern void read_message_body(BOOL);
428 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
429 extern BOOL receive_check_fs(int);
430 extern BOOL receive_check_set_sender(uschar *);
431 extern BOOL receive_msg(BOOL);
432 extern int_eximarith_t receive_statvfs(BOOL, int *);
433 extern void receive_swallow_smtp(void);
434 #ifdef WITH_CONTENT_SCAN
435 extern int regex(const uschar **);
437 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
438 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
439 extern const pcre2_code *regex_must_compile(const uschar *, BOOL, BOOL);
440 extern void retry_add_item(address_item *, uschar *, int);
441 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
442 uschar **, uschar **);
443 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
444 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
445 dbdata_retry *, time_t);
446 extern void retry_update(address_item **, address_item **, address_item **);
447 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
448 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
449 extern header_line *rewrite_header(header_line *,
450 const uschar *, const uschar *,
451 rewrite_rule *, int, BOOL);
452 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
454 extern void rewrite_test(const uschar *);
455 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
457 extern int route_address(address_item *, address_item **, address_item **,
458 address_item **, address_item **, int);
459 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
460 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
461 extern BOOL route_findgroup(uschar *, gid_t *);
462 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
463 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
465 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
466 struct passwd **, uid_t *, uschar **);
467 extern void route_init(void);
468 extern gstring * route_show_supported(gstring *);
469 extern void route_tidyup(void);
470 extern uschar *router_current_name(void);
472 extern uschar *search_args(int, uschar *, uschar *, uschar **, const uschar *);
473 extern uschar *search_find(void *, const uschar *, uschar *, int,
474 const uschar *, int, int, int *, const uschar *);
475 extern int search_findtype(const uschar *, int);
476 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
477 int *, const uschar **);
478 extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
479 extern void search_tidyup(void);
480 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
481 extern void sha1_end(hctx *, const uschar *, int, uschar *);
482 extern void sha1_mid(hctx *, const uschar *);
483 extern void sha1_start(hctx *);
484 extern int sieve_interpret(const uschar *, int, const uschar *,
485 const uschar *, const uschar *, const uschar *,
486 address_item **, uschar **);
487 extern void sigalrm_handler(int);
488 extern void smtp_closedown(uschar *);
489 extern void smtp_command_timeout_exit(void) NORETURN;
490 extern void smtp_command_sigterm_exit(void) NORETURN;
491 extern void smtp_data_timeout_exit(void) NORETURN;
492 extern void smtp_data_sigint_exit(void) NORETURN;
493 extern void smtp_deliver_init(void);
494 extern uschar *smtp_cmd_hist(void);
495 extern int smtp_connect(smtp_connect_args *, const blob *);
496 extern int smtp_sock_connect(host_item *, int, int, uschar *,
497 transport_instance * tb, int, const blob *);
498 extern int smtp_feof(void);
499 extern int smtp_ferror(void);
500 extern uschar *smtp_get_connection_info(void);
501 extern BOOL smtp_get_interface(uschar *, int, address_item *,
502 uschar **, uschar *);
503 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
504 extern int smtp_getc(unsigned);
505 extern uschar *smtp_getbuf(unsigned *);
506 extern void smtp_get_cache(unsigned);
507 extern BOOL smtp_hasc(void);
508 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
509 extern void smtp_log_no_mail(void);
510 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
511 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int) NORETURN;
512 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
513 extern void *smtp_reset(void *);
514 extern void smtp_respond(uschar *, int, BOOL, uschar *);
515 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
516 extern void smtp_port_for_connect(host_item *, int);
517 extern void smtp_send_prohibition_message(int, uschar *);
518 extern int smtp_setup_msg(void);
519 extern BOOL smtp_start_session(void);
520 extern int smtp_ungetc(int);
521 extern BOOL smtp_verify_helo(void);
522 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
523 #ifdef WITH_CONTENT_SCAN
524 extern int spam(const uschar **);
525 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
527 extern void spool_clear_header_globals(void);
528 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
529 extern int spool_open_datafile(uschar *);
530 extern int spool_open_temp(uschar *);
531 extern int spool_read_header(uschar *, BOOL, BOOL);
532 extern uschar *spool_sender_from_msgid(const uschar *);
533 extern int spool_write_header(uschar *, int, uschar **);
534 extern int stdin_getc(unsigned);
535 extern int stdin_feof(void);
536 extern int stdin_ferror(void);
537 extern BOOL stdin_hasc(void);
538 extern int stdin_ungetc(int);
540 extern void store_exit(void);
541 extern void store_init(void);
542 extern void store_writeprotect(int);
544 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
545 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
546 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
547 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
548 extern uschar *string_base62(unsigned long int);
549 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
550 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
551 extern int string_compare_by_pointer(const void *, const void *);
552 extern uschar *string_copy_dnsdomain(uschar *);
553 extern uschar *string_copy_malloc(const uschar *);
554 extern uschar *string_dequote(const uschar **);
555 extern uschar *string_format_size(int, uschar *);
556 extern int string_interpret_escape(const uschar **);
557 extern int string_is_ip_address(const uschar *, int *);
559 extern BOOL string_is_utf8(const uschar *);
561 extern const uschar *string_printing2(const uschar *, int);
562 extern uschar *string_split_message(uschar *);
563 extern uschar *string_unprinting(uschar *);
565 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
566 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
567 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
568 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
569 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
572 #define string_format(buf, siz, fmt, ...) \
573 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
574 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
575 const char *, ...) ALMOST_PRINTF(5,6);
577 #define string_vformat(g, flgs, fmt, ap) \
578 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
579 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
580 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
581 unsigned, unsigned, const char *, va_list);
583 #define string_open_failed(fmt, ...) \
584 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
585 extern uschar *string_open_failed_trc(const uschar *, unsigned,
586 const char *, ...) PRINTF_FUNCTION(3,4);
588 #define string_nextinlist(lp, sp, b, l) \
589 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
590 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
591 const uschar * func, int line);
593 extern int strcmpic(const uschar *, const uschar *);
594 extern int strncmpic(const uschar *, const uschar *, int);
595 extern uschar *strstric(uschar *, uschar *, BOOL);
596 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
598 extern int test_harness_fudged_queue_time(int);
599 extern void tcp_init(void);
600 #ifdef EXIM_TFO_PROBE
601 extern void tfo_probe(void);
603 extern void tls_modify_variables(tls_support *);
604 extern uschar *tod_stamp(int);
606 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
608 extern uschar *transport_current_name(void);
609 extern void transport_do_pass_socket(const uschar *, const uschar *,
610 const uschar *, uschar *, int);
611 extern void transport_init(void);
612 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
613 #ifdef EXPERIMENTAL_ESMTP_LIMITS
614 , unsigned, unsigned, unsigned
617 extern uschar *transport_rcpt_address(address_item *, BOOL);
618 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
619 BOOL, int, address_item *, const uschar *, uschar **);
620 extern void transport_update_waiting(host_item *, uschar *);
621 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
622 extern void transport_write_reset(int);
623 extern BOOL transport_write_string(int, const char *, ...);
624 extern BOOL transport_headers_send(transport_ctx *,
625 BOOL (*)(transport_ctx *, uschar *, int));
626 extern gstring * transport_show_supported(gstring *);
627 extern BOOL transport_write_message(transport_ctx *, int);
628 extern void tree_add_duplicate(const uschar *, address_item *);
629 extern void tree_add_nonrecipient(const uschar *);
630 extern void tree_add_unusable(const host_item *);
631 extern void tree_dup(tree_node **, tree_node *);
632 extern int tree_insertnode(tree_node **, tree_node *);
633 extern tree_node *tree_search(tree_node *, const uschar *);
634 extern void tree_write(tree_node *, FILE *);
635 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
637 #ifdef WITH_CONTENT_SCAN
638 extern void unspool_mbox(void);
641 extern gstring *utf8_version_report(gstring *);
644 extern int verify_address(address_item *, FILE *, int, int, int, int,
645 uschar *, uschar *, BOOL *);
646 extern int verify_check_dnsbl(int, const uschar **, uschar **);
647 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
648 uschar *, uschar *, int, int *);
649 extern int verify_check_headers(uschar **);
650 extern int verify_check_header_names_ascii(uschar **);
651 extern int verify_check_host(uschar **);
652 extern int verify_check_notblind(BOOL);
653 extern int verify_check_given_host(const uschar **, const host_item *);
654 extern int verify_check_this_host(const uschar **, unsigned int *,
655 const uschar*, const uschar *, const uschar **);
656 extern address_item *verify_checked_sender(uschar *);
657 extern void verify_get_ident(int);
658 extern void verify_quota(uschar *);
659 extern int verify_quota_call(const uschar *, int, int, uschar **);
660 extern BOOL verify_sender(int *, uschar **);
661 extern BOOL verify_sender_preliminary(int *, uschar **);
662 extern void version_init(void);
664 extern BOOL write_chunk(transport_ctx *, uschar *, int);
665 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
668 /******************************************************************************/
669 /* Predicate: if an address is in a tainted pool.
670 By extension, a variable pointing to this address is tainted.
674 is_tainted(const void * p)
676 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
680 extern BOOL is_tainted_fn(const void *);
681 return is_tainted_fn(p);
686 is_incompatible(const void * old, const void * new)
688 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
692 extern BOOL is_incompatible_fn(const void *, const void *);
693 return is_incompatible_fn(old, new);
697 /******************************************************************************/
698 /* String functions */
699 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
701 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
702 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
704 return US strcat(CS dst, CCS src);
706 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
708 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
709 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
711 return US strcpy(CS dst, CCS src);
713 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
715 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
716 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
718 return US strncat(CS dst, CCS src, n);
720 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
722 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
723 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
725 return US strncpy(CS dst, CCS src, n);
727 /*XXX will likely need unchecked copy also */
730 /* Advance the string pointer given over any whitespace.
731 Return the next char as there's enought places using it to be useful. */
733 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
735 static inline uschar skip_whitespace(const uschar ** sp)
736 { while (isspace(**sp)) (*sp)++; return **sp; }
739 /******************************************************************************/
741 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
742 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
743 chown(<exim-uid>, <exim-gid>).
745 Probably because the idmapping is broken, misconfigured or set up in
746 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
747 case of misconfiguration, or if there are more such broken systems
748 out, I try to impose as least impact as possible and for now just write
749 a panic log entry pointing to the bug report. You're encouraged to
750 contact the developers, if you experience this issue.
752 fd the file descriptor (or -1 if not valid)
753 name the file name for error messages or for file operations,
758 returns 0 on success, -1 on failure */
761 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
763 return fchown(fd, owner, group)
764 ? exim_chown_failure(fd, name, owner, group) : 0;
768 exim_chown(const uschar *name, uid_t owner, gid_t group)
770 return chown(CCS name, owner, group)
771 ? exim_chown_failure(-1, name, owner, group) : 0;
773 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
775 /******************************************************************************/
776 /* String functions */
778 #if !defined(MACRO_PREDEF)
779 /*************************************************
780 * Copy and save string *
781 *************************************************/
783 /* This function assumes that memcpy() is faster than strcpy().
784 The result is explicitly nul-terminated.
787 static inline uschar *
788 string_copyn_taint_trc(const uschar * s, unsigned len,
789 const void * proto_mem, const char * func, int line)
791 uschar * ss = store_get_3(len + 1, proto_mem, func, line);
797 static inline uschar *
798 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
799 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
801 static inline uschar *
802 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
803 { return string_copyn_taint_trc(s, len, s, func, line); }
804 static inline uschar *
805 string_copy_trc(const uschar * s, const char * func, int line)
806 { return string_copy_taint_trc(s, s, func, line); }
809 /* String-copy functions explicitly setting the taint status */
811 #define string_copyn_taint(s, len, proto_mem) \
812 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
813 #define string_copy_taint(s, proto_mem) \
814 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
816 /* Simple string-copy functions maintaining the taint */
818 #define string_copyn(s, len) \
819 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
820 #define string_copy(s) \
821 string_copy_trc((s), __FUNCTION__, __LINE__)
824 /*************************************************
825 * Copy, lowercase and save string *
826 *************************************************/
829 Argument: string to copy
830 Returns: copy of string in new store, with letters lowercased
833 static inline uschar *
834 string_copylc(const uschar * s)
836 uschar * ss = store_get(Ustrlen(s) + 1, s);
838 while (*s) *p++ = tolower(*s++);
845 /*************************************************
846 * Copy, lowercase, and save string, given length *
847 *************************************************/
849 /* It is assumed the data contains no zeros. A zero is added
854 n number of characters
856 Returns: copy of string in new store, with letters lowercased
859 static inline uschar *
860 string_copynlc(uschar * s, int n)
862 uschar * ss = store_get(n + 1, s);
864 while (n-- > 0) *p++ = tolower(*s++);
870 # ifndef COMPILE_UTILITY
871 /*************************************************
872 * Copy and save string in longterm store *
873 *************************************************/
875 /* This function assumes that memcpy() is faster than strcpy().
877 Argument: string to copy
878 Returns: copy of string in new store
881 static inline uschar *
882 string_copy_perm(const uschar *s, BOOL force_taint)
884 int old_pool = store_pool;
885 int len = Ustrlen(s) + 1;
888 store_pool = POOL_PERM;
889 ss = store_get(len, force_taint ? GET_TAINTED : s);
891 store_pool = old_pool;
898 /* sprintf into a buffer, taint-unchecked */
901 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
903 gstring gs = { .size = siz, .ptr = 0, .s = buf };
906 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
912 /******************************************************************************/
913 /* Growable-string functions */
915 /* Create a growable-string with some preassigned space */
917 #define string_get_tainted(size, proto_mem) \
918 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
920 static inline gstring *
921 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
923 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
924 g->size = size; /*XXX would be good if we could see the actual alloc size */
930 #define string_get(size) \
931 string_get_trc((size), __FUNCTION__, __LINE__)
933 static inline gstring *
934 string_get_trc(unsigned size, const char * func, unsigned line)
936 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
939 /* NUL-terminate the C string in the growable-string, and return it. */
941 static inline uschar *
942 string_from_gstring(gstring * g)
949 static inline unsigned
950 gstring_length(const gstring * g)
952 return g ? (unsigned)g->ptr : 0;
956 #define gstring_release_unused(g) \
957 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
960 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
962 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
966 /* sprintf-append to a growable-string */
968 #define string_fmt_append(g, fmt, ...) \
969 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
970 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
972 #define string_fmt_append_f(g, flgs, fmt, ...) \
973 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
974 flgs, fmt, __VA_ARGS__)
976 static inline gstring *
977 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
978 unsigned flags, const char *format, ...)
981 va_start(ap, format);
982 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
989 /* Copy the content of a string to tainted memory. The proto_mem arg
990 will always be tainted, and suitable as a prototype. */
993 gstring_rebuffer(gstring * g, const void * proto_mem)
995 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
996 memcpy(s, g->s, g->ptr);
1001 # ifndef COMPILE_UTILITY
1002 /******************************************************************************/
1003 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1004 for them as the strings we proceed to copy from them meant they could not be
1005 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1006 we do have to take care over marking tainted all copied strings. A separate pool
1007 could be used and would handle that implicitly. */
1009 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1011 static inline dns_answer *
1012 store_get_dns_answer_trc(const uschar * func, unsigned line)
1014 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1017 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1020 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1022 store_free_3(dnsa, CCS func, line);
1025 /******************************************************************************/
1026 /* Routines with knowledge of spool layout */
1029 spool_pname_buf(uschar * buf, int len)
1031 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1034 static inline uschar *
1035 spool_dname(const uschar * purpose, uschar * subdir)
1037 return string_sprintf("%s/%s/%s/%s",
1038 spool_directory, queue_name, purpose, subdir);
1042 static inline uschar *
1043 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
1045 return string_sprintf("%s%s%s%s%s",
1048 *subdir ? "/" : "", subdir);
1051 static inline uschar *
1052 spool_sname(const uschar * purpose, uschar * subdir)
1054 return spool_q_sname(purpose, queue_name, subdir);
1057 static inline uschar *
1058 spool_q_fname(const uschar * purpose, const uschar * q,
1059 const uschar * subdir, const uschar * fname, const uschar * suffix)
1061 return string_sprintf("%s/%s/%s/%s/%s%s",
1062 spool_directory, q, purpose, subdir, fname, suffix);
1065 static inline uschar *
1066 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1067 const uschar * suffix)
1069 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1070 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1071 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1072 uschar * buf = store_get(len, GET_UNTAINTED);
1073 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1074 spool_directory, queue_name, purpose, subdir, fname, suffix);
1077 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1082 set_subdir_str(uschar * subdir_str, const uschar * name,
1083 int search_sequence)
1085 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1087 subdir_str[1] = '\0';
1090 /******************************************************************************/
1091 /* Time calculations */
1093 /* Diff two times (later, earlier) returning diff in 1st arg */
1095 timediff(struct timeval * later, const struct timeval * earlier)
1097 later->tv_sec -= earlier->tv_sec;
1098 if ((later->tv_usec -= earlier->tv_usec) < 0)
1101 later->tv_usec += 1000*1000;
1106 timesince(struct timeval * diff, const struct timeval * then)
1108 gettimeofday(diff, NULL);
1109 timediff(diff, then);
1112 static inline uschar *
1113 string_timediff(const struct timeval * diff)
1115 static uschar buf[sizeof("0.000s")];
1117 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1118 return readconf_printtime((int)diff->tv_sec);
1120 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1125 static inline uschar *
1126 string_timesince(const struct timeval * then)
1128 struct timeval diff;
1129 timesince(&diff, then);
1130 return string_timediff(&diff);
1134 report_time_since(const struct timeval * t0, const uschar * where)
1136 # ifdef MEASURE_TIMING
1137 struct timeval diff;
1138 timesince(&diff, t0);
1139 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1140 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1146 testharness_pause_ms(int millisec)
1148 #ifndef MEASURE_TIMING
1149 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1153 /******************************************************************************/
1154 /* Taint-checked file opens */
1157 exim_open2(const char *pathname, int flags)
1159 if (!is_tainted(pathname)) return open(pathname, flags);
1160 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1165 exim_open(const char *pathname, int flags, mode_t mode)
1167 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1168 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1172 #ifdef EXIM_HAVE_OPENAT
1174 exim_openat(int dirfd, const char *pathname, int flags)
1176 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1177 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1182 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1184 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1185 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1191 static inline FILE *
1192 exim_fopen(const char *pathname, const char *mode)
1194 if (!is_tainted(pathname)) return fopen(pathname, mode);
1195 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1201 exim_opendir(const uschar * name)
1203 if (!is_tainted(name)) return opendir(CCS name);
1204 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1209 /******************************************************************************/
1210 # if !defined(COMPILE_UTILITY)
1211 /* Process manipulation */
1214 exim_fork(const unsigned char * purpose)
1217 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1218 if ((pid = fork()) == 0)
1220 process_purpose = purpose;
1221 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1225 testharness_pause_ms(100); /* let child work */
1226 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1233 child_open_exim(int * fdptr, const uschar * purpose)
1234 { return child_open_exim_function(fdptr, purpose); }
1237 child_open_exim2(int * fdptr, uschar * sender,
1238 uschar * sender_auth, const uschar * purpose)
1239 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1242 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1243 int *outfdptr, BOOL make_leader, const uschar * purpose)
1244 { return child_open_function(argv, envp, newumask, infdptr,
1245 outfdptr, make_leader, purpose);
1248 /* Return 1 if fd is usable per pollbits, else 0 */
1250 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1252 struct pollfd p = {.fd = fd, .events = pollbits};
1253 return poll(&p, 1, tmo_millisec);
1256 # endif /* !COMPILE_UTILITY */
1258 /******************************************************************************/
1259 #endif /* !MACRO_PREDEF */
1261 #endif /* _FUNCTIONS_H_ */
1265 /* End of functions.h */