1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) The Exim Maintainers 2020 - 2022 */
6 /* Copyright (c) University of Cambridge 1995 - 2018 */
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(const uschar *, const uschar *);
191 extern void debug_logging_from_spool(const uschar *);
192 extern void debug_logging_stop(BOOL);
193 extern void debug_print_argv(const uschar **);
194 extern void debug_print_ids(uschar *);
195 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
196 extern void debug_print_string(uschar *);
197 extern void debug_print_tree(const char *, tree_node *);
198 extern void debug_vprintf(int, const char *, va_list);
199 extern void debug_pretrigger_setup(const uschar *);
200 extern void debug_pretrigger_discard(void);
201 extern void debug_print_socket(int);
202 extern void debug_trigger_fire(void);
204 extern void decode_bits(unsigned int *, size_t, int *,
205 const uschar *, bit_table *, int, uschar *, int);
206 extern void delete_pid_file(void);
207 extern void deliver_local(address_item *, BOOL);
208 extern address_item *deliver_make_addr(uschar *, BOOL);
209 extern void delivery_log(int, address_item *, int, uschar *);
210 extern int deliver_message(uschar *, BOOL, BOOL);
211 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
212 extern void deliver_set_expansions(address_item *);
213 extern int deliver_split_address(address_item *);
214 extern void deliver_succeeded(address_item *);
216 extern void delivery_re_exec(int);
218 extern void die_tainted(const uschar *, const uschar *, int);
219 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
221 extern uschar *dkim_exim_query_dns_txt(const uschar *);
222 extern void dkim_exim_sign_init(void);
224 extern BOOL dkim_transport_write_message(transport_ctx *,
225 struct ob_dkim *, const uschar ** errstr);
227 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
228 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
229 extern uschar *dns_build_reverse(const uschar *);
230 extern time_t dns_expire_from_soa(dns_answer *, int);
231 extern void dns_init(BOOL, BOOL, BOOL);
232 extern BOOL dns_is_aa(const dns_answer *);
233 extern BOOL dns_is_secure(const dns_answer *);
234 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
235 extern void dns_pattern_init(void);
236 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
237 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
238 extern uschar *dns_text_type(int);
239 extern void dscp_list_to_stream(FILE *);
240 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
242 extern void enq_end(uschar *);
243 extern BOOL enq_start(uschar *, unsigned);
244 #ifndef DISABLE_EVENT
245 extern uschar *event_raise(uschar *, const uschar *, uschar *, int *);
246 extern void msg_event_raise(const uschar *, const address_item *);
249 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
250 extern const uschar * exim_errstr(int);
251 extern void exim_exit(int) NORETURN;
252 extern void exim_gettime(struct timeval *);
253 extern void exim_nullstd(void);
254 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
255 extern void exim_underbar_exit(int) NORETURN;
256 extern void exim_wait_tick(struct timeval *, int);
257 extern int exp_bool(address_item *addr,
258 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
259 uschar *svalue, BOOL *rvalue);
260 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
261 extern uschar *expand_file_big_buffer(const uschar *);
262 extern uschar *expand_string(uschar *); /* public, cannot make const */
263 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
264 extern uschar *expand_getkeyed(const uschar *, const uschar *);
266 extern uschar *expand_hide_passwords(uschar * );
267 extern uschar *expand_string_copy(const uschar *);
268 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
269 extern void modify_variable(uschar *, void *);
271 extern BOOL fd_ready(int, time_t);
273 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
274 extern BOOL filter_personal(string_item *, BOOL);
275 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
276 extern BOOL filter_system_interpret(address_item **, uschar **);
278 extern uschar * fn_hdrs_added(void);
279 extern void force_fd(int, int);
281 extern void header_add(int, const char *, ...);
282 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
283 extern int header_checkname(header_line *, BOOL);
284 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
285 extern int host_address_extract_port(uschar *);
286 extern uschar *host_and_ident(BOOL);
287 extern int host_aton(const uschar *, int *);
288 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
289 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
290 extern void host_build_log_info(void);
291 extern void host_build_sender_fullhost(void);
292 extern int host_find_byname(host_item *, const uschar *, int,
293 const uschar **, BOOL);
294 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
295 uschar *, const dnssec_domains *, const uschar **, BOOL *);
296 extern ip_address_item *host_find_interfaces(void);
297 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
298 extern BOOL host_is_tls_on_connect_port(int);
299 extern int host_item_get_port(host_item *);
300 extern void host_mask(int, int *, int);
301 extern int host_name_lookup(void);
302 extern int host_nmtoa(int, int *, int, uschar *, int);
303 extern uschar *host_ntoa(int, const void *, uschar *, int *);
304 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
306 extern uschar *imap_utf7_encode(uschar *, const uschar *,
307 uschar, uschar *, uschar **);
309 extern void invert_address(uschar *, uschar *);
310 extern int ip_addr(void *, int, const uschar *, int);
311 extern int ip_bind(int, int, uschar *, int);
312 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
313 extern int ip_connectedsocket(int, const uschar *, int, int,
314 int, host_item *, uschar **, const blob *);
315 extern int ip_get_address_family(int);
316 extern void ip_keepalive(int, const uschar *, BOOL);
317 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
318 extern int ip_socket(int, int);
320 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
321 extern int ip_unixsocket(const uschar *, uschar **);
322 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
324 extern int ipv6_nmtoa(int *, uschar *);
326 extern uschar *local_part_quote(uschar *);
327 extern int log_open_as_exim(const uschar * const);
328 extern void log_close_all(void);
330 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
331 extern BOOL macro_read_assignment(uschar *);
332 extern uschar *macros_expand(int, int *, BOOL *);
333 extern void mainlog_close(void);
334 #ifdef WITH_CONTENT_SCAN
335 extern int malware(const uschar *, int);
336 extern int malware_in_file(uschar *);
337 extern void malware_init(void);
338 extern gstring * malware_show_supported(gstring *);
340 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
341 unsigned int *, int, int, const uschar **);
342 extern int match_address_list_basic(const uschar *, const uschar **, int);
343 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
344 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
345 const uschar *, const uschar **);
346 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
347 unsigned int *, int, BOOL, const uschar **);
348 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
351 extern void message_start(void);
352 extern void message_tidyup(void);
353 extern void md5_end(md5 *, const uschar *, int, uschar *);
354 extern void md5_mid(md5 *, const uschar *);
355 extern void md5_start(md5 *);
356 extern void millisleep(int);
357 #ifdef WITH_CONTENT_SCAN
358 struct mime_boundary_context;
359 extern int mime_acl_check(uschar *acl, FILE *f,
360 struct mime_boundary_context *, uschar **, uschar **);
361 extern int mime_decode(const uschar **);
362 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
363 extern int mime_regex(const uschar **);
364 extern void mime_set_anomaly(int);
366 extern uschar *moan_check_errorcopy(uschar *);
367 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
369 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
370 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
371 header_line *, FILE *, uschar *);
372 extern void moan_tell_someone(uschar *, address_item *,
373 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
374 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
375 extern void moan_write_from(FILE *);
376 extern void moan_write_references(FILE *, uschar *);
377 extern FILE *modefopen(const uschar *, const char *, mode_t);
379 extern int open_cutthrough_connection( address_item * addr );
381 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
383 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
384 const uschar *, const uschar *, error_block **);
385 extern uschar *parse_find_address_end(const uschar *, BOOL);
386 extern const uschar *parse_find_at(const uschar *);
387 extern const uschar *parse_fix_phrase(const uschar *, int);
388 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
389 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
391 extern const uschar *parse_date_time(const uschar *str, time_t *t);
392 extern void priv_drop_temp(const uid_t, const gid_t);
393 extern void priv_restore(void);
394 extern int vaguely_random_number(int);
396 extern int vaguely_random_number_fallback(int);
399 extern BOOL queue_action(uschar *, int, uschar **, int, int);
400 extern void queue_check_only(void);
401 extern unsigned queue_count(void);
402 extern unsigned queue_count_cached(void);
403 extern void queue_list(int, uschar **, int);
404 #ifndef DISABLE_QUEUE_RAMP
405 extern void queue_notify_daemon(const uschar * hostname);
407 extern void queue_run(uschar *, uschar *, BOOL);
409 extern int random_number(int);
410 extern const uschar *rc_to_string(int);
411 extern int rda_interpret(redirect_block *, int, const uschar *, const uschar *,
412 const uschar *, const uschar *, const uschar *, const ugid_block *, address_item **,
413 uschar **, error_block **, int *, const uschar *);
414 extern int rda_is_filter(const uschar *);
415 extern BOOL readconf_depends(driver_instance *, uschar *);
416 extern void readconf_driver_init(uschar *, driver_instance **,
417 driver_info *, int, void *, int, optionlist *, int);
418 extern uschar *readconf_find_option(void *);
419 extern void readconf_main(BOOL);
420 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
421 extern BOOL readconf_print(const uschar *, uschar *, BOOL);
422 extern uschar *readconf_printtime(int);
423 extern uschar *readconf_readname(uschar *, int, uschar *);
424 extern int readconf_readtime(const uschar *, int, BOOL);
425 extern void readconf_rest(void);
426 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
427 extern void readconf_save_config(const uschar *);
428 extern void read_message_body(BOOL);
429 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
430 extern BOOL receive_check_fs(int);
431 extern BOOL receive_check_set_sender(uschar *);
432 extern BOOL receive_msg(BOOL);
433 extern int_eximarith_t receive_statvfs(BOOL, int *);
434 extern void receive_swallow_smtp(void);
435 #ifdef WITH_CONTENT_SCAN
436 extern int regex(const uschar **);
438 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
439 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
440 extern const pcre2_code *regex_must_compile(const uschar *, BOOL, BOOL);
441 extern void retry_add_item(address_item *, uschar *, int);
442 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
443 uschar **, uschar **);
444 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
445 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
446 dbdata_retry *, time_t);
447 extern void retry_update(address_item **, address_item **, address_item **);
448 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
449 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
450 extern header_line *rewrite_header(header_line *,
451 const uschar *, const uschar *,
452 rewrite_rule *, int, BOOL);
453 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
455 extern void rewrite_test(const uschar *);
456 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
458 extern int route_address(address_item *, address_item **, address_item **,
459 address_item **, address_item **, int);
460 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
461 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
462 extern BOOL route_findgroup(uschar *, gid_t *);
463 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
464 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
466 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
467 struct passwd **, uid_t *, uschar **);
468 extern void route_init(void);
469 extern gstring * route_show_supported(gstring *);
470 extern void route_tidyup(void);
471 extern uschar *router_current_name(void);
473 extern uschar *search_args(int, uschar *, uschar *, uschar **, const uschar *);
474 extern uschar *search_find(void *, const uschar *, uschar *, int,
475 const uschar *, int, int, int *, const uschar *);
476 extern int search_findtype(const uschar *, int);
477 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
478 int *, const uschar **);
479 extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
480 extern void search_tidyup(void);
481 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
482 extern void sha1_end(hctx *, const uschar *, int, uschar *);
483 extern void sha1_mid(hctx *, const uschar *);
484 extern void sha1_start(hctx *);
485 extern int sieve_interpret(const uschar *, int, const uschar *,
486 const uschar *, const uschar *, const uschar *,
487 address_item **, uschar **);
488 extern void sigalrm_handler(int);
489 extern int smtp_boundsock(smtp_connect_args *);
490 extern void smtp_closedown(uschar *);
491 extern void smtp_command_timeout_exit(void) NORETURN;
492 extern void smtp_command_sigterm_exit(void) NORETURN;
493 extern void smtp_data_timeout_exit(void) NORETURN;
494 extern void smtp_data_sigint_exit(void) NORETURN;
495 extern void smtp_deliver_init(void);
496 extern uschar *smtp_cmd_hist(void);
497 extern int smtp_connect(smtp_connect_args *, 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, const uschar *) 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 int smtp_sock_connect(smtp_connect_args *, int, const blob *);
520 extern BOOL smtp_start_session(void);
521 extern int smtp_ungetc(int);
522 extern BOOL smtp_verify_helo(void);
523 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
524 #ifdef WITH_CONTENT_SCAN
525 extern int spam(const uschar **);
526 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
528 extern void spool_clear_header_globals(void);
529 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
530 extern int spool_open_datafile(uschar *);
531 extern int spool_open_temp(uschar *);
532 extern int spool_read_header(uschar *, BOOL, BOOL);
533 extern uschar *spool_sender_from_msgid(const uschar *);
534 extern int spool_write_header(uschar *, int, uschar **);
535 extern int stdin_getc(unsigned);
536 extern int stdin_feof(void);
537 extern int stdin_ferror(void);
538 extern BOOL stdin_hasc(void);
539 extern int stdin_ungetc(int);
541 extern void store_exit(void);
542 extern void store_init(void);
543 extern void store_writeprotect(int);
545 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
546 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
547 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
548 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
549 extern uschar *string_base62(unsigned long int);
550 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
551 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
552 extern int string_compare_by_pointer(const void *, const void *);
553 extern uschar *string_copy_dnsdomain(uschar *);
554 extern uschar *string_copy_malloc(const uschar *);
555 extern uschar *string_dequote(const uschar **);
556 extern uschar *string_format_size(int, uschar *);
557 extern int string_interpret_escape(const uschar **);
558 extern int string_is_ip_address(const uschar *, int *);
560 extern BOOL string_is_utf8(const uschar *);
562 extern const uschar *string_printing2(const uschar *, int);
563 extern uschar *string_split_message(uschar *);
564 extern uschar *string_unprinting(uschar *);
566 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
567 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
568 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
569 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
570 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
573 #define string_format(buf, siz, fmt, ...) \
574 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
575 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
576 const char *, ...) ALMOST_PRINTF(5,6);
578 #define string_vformat(g, flgs, fmt, ap) \
579 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
580 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
581 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
582 unsigned, unsigned, const char *, va_list);
584 #define string_open_failed(fmt, ...) \
585 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
586 extern uschar *string_open_failed_trc(const uschar *, unsigned,
587 const char *, ...) PRINTF_FUNCTION(3,4);
589 #define string_nextinlist(lp, sp, b, l) \
590 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
591 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
592 const uschar * func, int line);
594 extern int strcmpic(const uschar *, const uschar *);
595 extern int strncmpic(const uschar *, const uschar *, int);
596 extern uschar *strstric(uschar *, uschar *, BOOL);
597 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
599 extern int test_harness_fudged_queue_time(int);
600 extern void tcp_init(void);
601 #ifdef EXIM_TFO_PROBE
602 extern void tfo_probe(void);
604 extern void tls_modify_variables(tls_support *);
605 extern uschar *tod_stamp(int);
607 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
609 extern uschar *transport_current_name(void);
610 extern void transport_do_pass_socket(const uschar *, const uschar *,
611 const uschar *, uschar *, int);
612 extern void transport_init(void);
613 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
614 #ifdef EXPERIMENTAL_ESMTP_LIMITS
615 , unsigned, unsigned, unsigned
618 extern uschar *transport_rcpt_address(address_item *, BOOL);
619 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
620 BOOL, int, address_item *, BOOL, const uschar *, uschar **);
621 extern void transport_update_waiting(host_item *, uschar *);
622 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
623 extern void transport_write_reset(int);
624 extern BOOL transport_write_string(int, const char *, ...);
625 extern BOOL transport_headers_send(transport_ctx *,
626 BOOL (*)(transport_ctx *, uschar *, int));
627 extern gstring * transport_show_supported(gstring *);
628 extern BOOL transport_write_message(transport_ctx *, int);
629 extern void tree_add_duplicate(const uschar *, address_item *);
630 extern void tree_add_nonrecipient(const uschar *);
631 extern void tree_add_unusable(const host_item *);
632 extern void tree_dup(tree_node **, tree_node *);
633 extern int tree_insertnode(tree_node **, tree_node *);
634 extern tree_node *tree_search(tree_node *, const uschar *);
635 extern void tree_write(tree_node *, FILE *);
636 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
638 #ifdef WITH_CONTENT_SCAN
639 extern void unspool_mbox(void);
642 extern gstring *utf8_version_report(gstring *);
645 extern int verify_address(address_item *, FILE *, int, int, int, int,
646 uschar *, uschar *, BOOL *);
647 extern int verify_check_dnsbl(int, const uschar **, uschar **);
648 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
649 uschar *, uschar *, int, int *);
650 extern int verify_check_headers(uschar **);
651 extern int verify_check_header_names_ascii(uschar **);
652 extern int verify_check_host(uschar **);
653 extern int verify_check_notblind(BOOL);
654 extern int verify_check_given_host(const uschar **, const host_item *);
655 extern int verify_check_this_host(const uschar **, unsigned int *,
656 const uschar*, const uschar *, const uschar **);
657 extern address_item *verify_checked_sender(uschar *);
658 extern void verify_get_ident(int);
659 extern void verify_quota(uschar *);
660 extern int verify_quota_call(const uschar *, int, int, uschar **);
661 extern BOOL verify_sender(int *, uschar **);
662 extern BOOL verify_sender_preliminary(int *, uschar **);
663 extern void version_init(void);
665 extern BOOL write_chunk(transport_ctx *, uschar *, int);
666 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
669 /******************************************************************************/
670 /* Predicate: if an address is in a tainted pool.
671 By extension, a variable pointing to this address is tainted.
675 is_tainted(const void * p)
677 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
681 extern BOOL is_tainted_fn(const void *);
682 return is_tainted_fn(p);
687 is_incompatible(const void * old, const void * new)
689 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
693 extern BOOL is_incompatible_fn(const void *, const void *);
694 return is_incompatible_fn(old, new);
698 /******************************************************************************/
699 /* String functions */
700 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
702 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
703 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
705 return US strcat(CS dst, CCS src);
707 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
709 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
710 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
712 return US strcpy(CS dst, CCS src);
714 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
716 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
717 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
719 return US strncat(CS dst, CCS src, n);
721 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
723 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
724 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
726 return US strncpy(CS dst, CCS src, n);
728 /*XXX will likely need unchecked copy also */
731 /* Advance the string pointer given over any whitespace.
732 Return the next char as there's enought places using it to be useful. */
734 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
736 static inline uschar skip_whitespace(const uschar ** sp)
737 { while (isspace(**sp)) (*sp)++; return **sp; }
740 /******************************************************************************/
742 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
743 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
744 chown(<exim-uid>, <exim-gid>).
746 Probably because the idmapping is broken, misconfigured or set up in
747 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
748 case of misconfiguration, or if there are more such broken systems
749 out, I try to impose as least impact as possible and for now just write
750 a panic log entry pointing to the bug report. You're encouraged to
751 contact the developers, if you experience this issue.
753 fd the file descriptor (or -1 if not valid)
754 name the file name for error messages or for file operations,
759 returns 0 on success, -1 on failure */
762 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
764 return fchown(fd, owner, group)
765 ? exim_chown_failure(fd, name, owner, group) : 0;
769 exim_chown(const uschar *name, uid_t owner, gid_t group)
771 return chown(CCS name, owner, group)
772 ? exim_chown_failure(-1, name, owner, group) : 0;
774 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
776 /******************************************************************************/
777 /* String functions */
779 #if !defined(MACRO_PREDEF)
780 /*************************************************
781 * Copy and save string *
782 *************************************************/
784 /* This function assumes that memcpy() is faster than strcpy().
785 The result is explicitly nul-terminated.
788 static inline uschar *
789 string_copyn_taint_trc(const uschar * s, unsigned len,
790 const void * proto_mem, const char * func, int line)
793 unsigned slen = Ustrlen(s);
794 if (len > slen) len = slen;
795 ss = store_get_3(len + 1, proto_mem, func, line);
801 static inline uschar *
802 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
803 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
805 static inline uschar *
806 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
807 { return string_copyn_taint_trc(s, len, s, func, line); }
808 static inline uschar *
809 string_copy_trc(const uschar * s, const char * func, int line)
810 { return string_copy_taint_trc(s, s, func, line); }
813 /* String-copy functions explicitly setting the taint status */
815 #define string_copyn_taint(s, len, proto_mem) \
816 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
817 #define string_copy_taint(s, proto_mem) \
818 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
820 /* Simple string-copy functions maintaining the taint */
822 #define string_copyn(s, len) \
823 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
824 #define string_copy(s) \
825 string_copy_trc((s), __FUNCTION__, __LINE__)
828 /*************************************************
829 * Copy, lowercase and save string *
830 *************************************************/
833 Argument: string to copy
834 Returns: copy of string in new store, with letters lowercased
837 static inline uschar *
838 string_copylc(const uschar * s)
840 uschar * ss = store_get(Ustrlen(s) + 1, s);
842 while (*s) *p++ = tolower(*s++);
849 /*************************************************
850 * Copy, lowercase, and save string, given length *
851 *************************************************/
853 /* It is assumed the data contains no zeros. A zero is added
858 n number of characters
860 Returns: copy of string in new store, with letters lowercased
863 static inline uschar *
864 string_copynlc(uschar * s, int n)
866 uschar * ss = store_get(n + 1, s);
868 while (n-- > 0) *p++ = tolower(*s++);
874 # ifndef COMPILE_UTILITY
875 /*************************************************
876 * Copy and save string in longterm store *
877 *************************************************/
879 /* This function assumes that memcpy() is faster than strcpy().
881 Argument: string to copy
882 Returns: copy of string in new store
885 static inline uschar *
886 string_copy_perm(const uschar *s, BOOL force_taint)
888 int old_pool = store_pool;
889 int len = Ustrlen(s) + 1;
892 store_pool = POOL_PERM;
893 ss = store_get(len, force_taint ? GET_TAINTED : s);
895 store_pool = old_pool;
902 /* sprintf into a buffer, taint-unchecked */
905 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
907 gstring gs = { .size = siz, .ptr = 0, .s = buf };
910 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
916 /******************************************************************************/
917 /* Growable-string functions */
919 /* Create a growable-string with some preassigned space */
921 #define string_get_tainted(size, proto_mem) \
922 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
924 static inline gstring *
925 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
927 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
928 g->size = size; /*XXX would be good if we could see the actual alloc size */
934 #define string_get(size) \
935 string_get_trc((size), __FUNCTION__, __LINE__)
937 static inline gstring *
938 string_get_trc(unsigned size, const char * func, unsigned line)
940 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
943 /* NUL-terminate the C string in the growable-string, and return it. */
945 static inline uschar *
946 string_from_gstring(gstring * g)
953 static inline unsigned
954 gstring_length(const gstring * g)
956 return g ? (unsigned)g->ptr : 0;
960 #define gstring_release_unused(g) \
961 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
964 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
966 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
970 /* sprintf-append to a growable-string */
972 #define string_fmt_append(g, fmt, ...) \
973 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
974 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
976 #define string_fmt_append_f(g, flgs, fmt, ...) \
977 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
978 flgs, fmt, __VA_ARGS__)
980 static inline gstring *
981 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
982 unsigned flags, const char *format, ...)
985 va_start(ap, format);
986 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
993 /* Copy the content of a string to tainted memory. The proto_mem arg
994 will always be tainted, and suitable as a prototype. */
997 gstring_rebuffer(gstring * g, const void * proto_mem)
999 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1000 memcpy(s, g->s, g->ptr);
1005 # ifndef COMPILE_UTILITY
1006 /******************************************************************************/
1007 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1008 for them as the strings we proceed to copy from them meant they could not be
1009 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1010 we do have to take care over marking tainted all copied strings. A separate pool
1011 could be used and would handle that implicitly. */
1013 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1015 static inline dns_answer *
1016 store_get_dns_answer_trc(const uschar * func, unsigned line)
1018 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1021 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1024 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1026 store_free_3(dnsa, CCS func, line);
1029 /******************************************************************************/
1030 /* Routines with knowledge of spool layout */
1033 spool_pname_buf(uschar * buf, int len)
1035 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1038 static inline uschar *
1039 spool_dname(const uschar * purpose, uschar * subdir)
1041 return string_sprintf("%s/%s/%s/%s",
1042 spool_directory, queue_name, purpose, subdir);
1046 static inline uschar *
1047 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
1049 return string_sprintf("%s%s%s%s%s",
1052 *subdir ? "/" : "", subdir);
1055 static inline uschar *
1056 spool_sname(const uschar * purpose, uschar * subdir)
1058 return spool_q_sname(purpose, queue_name, subdir);
1061 static inline uschar *
1062 spool_q_fname(const uschar * purpose, const uschar * q,
1063 const uschar * subdir, const uschar * fname, const uschar * suffix)
1065 return string_sprintf("%s/%s/%s/%s/%s%s",
1066 spool_directory, q, purpose, subdir, fname, suffix);
1069 static inline uschar *
1070 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1071 const uschar * suffix)
1073 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1074 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1075 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1076 uschar * buf = store_get(len, GET_UNTAINTED);
1077 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1078 spool_directory, queue_name, purpose, subdir, fname, suffix);
1081 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1086 set_subdir_str(uschar * subdir_str, const uschar * name,
1087 int search_sequence)
1089 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1091 subdir_str[1] = '\0';
1094 /******************************************************************************/
1095 /* Time calculations */
1097 /* Diff two times (later, earlier) returning diff in 1st arg */
1099 timediff(struct timeval * later, const struct timeval * earlier)
1101 later->tv_sec -= earlier->tv_sec;
1102 if ((later->tv_usec -= earlier->tv_usec) < 0)
1105 later->tv_usec += 1000*1000;
1110 timesince(struct timeval * diff, const struct timeval * then)
1112 gettimeofday(diff, NULL);
1113 timediff(diff, then);
1116 static inline uschar *
1117 string_timediff(const struct timeval * diff)
1119 static uschar buf[sizeof("0.000s")];
1121 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1122 return readconf_printtime((int)diff->tv_sec);
1124 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1129 static inline uschar *
1130 string_timesince(const struct timeval * then)
1132 struct timeval diff;
1133 timesince(&diff, then);
1134 return string_timediff(&diff);
1138 report_time_since(const struct timeval * t0, const uschar * where)
1140 # ifdef MEASURE_TIMING
1141 struct timeval diff;
1142 timesince(&diff, t0);
1143 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1144 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1150 testharness_pause_ms(int millisec)
1152 #ifndef MEASURE_TIMING
1153 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1157 /******************************************************************************/
1158 /* Taint-checked file opens */
1161 exim_open2(const char *pathname, int flags)
1163 if (!is_tainted(pathname)) return open(pathname, flags);
1164 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1169 exim_open(const char *pathname, int flags, mode_t mode)
1171 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1172 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1176 #ifdef EXIM_HAVE_OPENAT
1178 exim_openat(int dirfd, const char *pathname, int flags)
1180 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1181 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1186 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1188 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1189 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1195 static inline FILE *
1196 exim_fopen(const char *pathname, const char *mode)
1198 if (!is_tainted(pathname)) return fopen(pathname, mode);
1199 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1205 exim_opendir(const uschar * name)
1207 if (!is_tainted(name)) return opendir(CCS name);
1208 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1213 /******************************************************************************/
1214 # if !defined(COMPILE_UTILITY)
1215 /* Process manipulation */
1218 exim_fork(const unsigned char * purpose)
1221 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1222 if ((pid = fork()) == 0)
1224 process_purpose = purpose;
1225 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1229 testharness_pause_ms(100); /* let child work */
1230 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1237 child_open_exim(int * fdptr, const uschar * purpose)
1238 { return child_open_exim_function(fdptr, purpose); }
1241 child_open_exim2(int * fdptr, uschar * sender,
1242 uschar * sender_auth, const uschar * purpose)
1243 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1246 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1247 int *outfdptr, BOOL make_leader, const uschar * purpose)
1248 { return child_open_function(argv, envp, newumask, infdptr,
1249 outfdptr, make_leader, purpose);
1252 /* Return 1 if fd is usable per pollbits, else 0 */
1254 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1256 struct pollfd p = {.fd = fd, .events = pollbits};
1257 return poll(&p, 1, tmo_millisec);
1260 /******************************************************************************/
1261 /* Client-side smtp log string, for debug */
1264 smtp_debug_cmd(const uschar * buf, int mode)
1266 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1267 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1269 # ifndef DISABLE_CLIENT_CMD_LOG
1271 int len = Ustrcspn(buf, " \n");
1272 int old_pool = store_pool;
1273 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1274 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1275 if (mode == SCMD_BUFFER)
1277 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1278 (void) string_from_gstring(client_cmd_log);
1280 store_pool = old_pool;
1287 smtp_debug_cmd_report(void)
1289 # ifndef DISABLE_CLIENT_CMD_LOG
1290 debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)");
1296 # endif /* !COMPILE_UTILITY */
1298 /******************************************************************************/
1299 #endif /* !MACRO_PREDEF */
1301 #endif /* _FUNCTIONS_H_ */
1305 /* End of functions.h */