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. */
8 /* SPDX-License-Identifier: GPL-2.0-or-later */
11 /* Prototypes for functions that appear in various modules. Gathered together
12 to avoid having a lot of tiddly little headers with only a couple of lines in
13 them. However, some functions that are used (or not used) by utility programs
14 are in in fact in separate headers. */
23 extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
24 uschar **) WARN_UNUSED_RESULT;
25 extern void cleanup_perl(void);
26 extern uschar *init_perl(uschar *);
32 std_dh_prime_default(void);
34 std_dh_prime_named(const uschar *);
36 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
37 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
38 extern uschar * tls_cert_issuer(void *, uschar * mod);
39 extern uschar * tls_cert_not_before(void *, uschar * mod);
40 extern uschar * tls_cert_not_after(void *, uschar * mod);
41 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
42 extern uschar * tls_cert_serial_number(void *, uschar * mod);
43 extern uschar * tls_cert_signature(void *, uschar * mod);
44 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
45 extern uschar * tls_cert_subject(void *, uschar * mod);
46 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
47 extern uschar * tls_cert_version(void *, uschar * mod);
49 extern uschar * tls_cert_der_b64(void * cert);
50 extern uschar * tls_cert_fprt_md5(void *);
51 extern uschar * tls_cert_fprt_sha1(void *);
52 extern uschar * tls_cert_fprt_sha256(void *);
54 extern void tls_clean_env(void);
55 extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
56 void *, tls_support *, uschar **);
57 extern void tls_client_creds_reload(BOOL);
59 extern void tls_close(void *, int);
60 extern BOOL tls_could_getc(void);
61 extern void tls_daemon_init(void);
62 extern int tls_daemon_tick(void);
63 extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
64 extern BOOL tls_export_cert(uschar *, size_t, void *);
65 extern int tls_feof(void);
66 extern int tls_ferror(void);
67 extern uschar *tls_field_from_dn(uschar *, const uschar *);
68 extern void tls_free_cert(void **);
69 extern int tls_getc(unsigned);
70 extern uschar *tls_getbuf(unsigned *);
71 extern void tls_get_cache(unsigned);
72 extern BOOL tls_hasc(void);
73 extern BOOL tls_import_cert(const uschar *, void **);
74 extern BOOL tls_is_name_for_cert(const uschar *, void *);
76 extern BOOL tls_openssl_options_parse(uschar *, long *);
78 extern int tls_read(void *, uschar *, size_t);
79 extern int tls_server_start(uschar **);
80 extern void tls_shutdown_wr(void *);
81 extern BOOL tls_smtp_buffered(void);
82 extern int tls_ungetc(int);
83 #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT)
84 extern void tls_watch_discard_event(int);
85 extern void tls_watch_invalidate(void);
87 extern int tls_write(void *, const uschar *, size_t, BOOL);
88 extern uschar *tls_validate_require_cipher(void);
89 extern gstring *tls_version_report(gstring *);
92 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
95 #endif /*DISABLE_TLS*/
98 /* Everything else... */
100 extern acl_block *acl_read(uschar *(*)(void), uschar **);
101 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
102 extern uschar *acl_current_verb(void);
103 extern int acl_eval(int, uschar *, uschar **, uschar **);
104 extern uschar *acl_standalone_setvar(const uschar *);
106 extern tree_node *acl_var_create(uschar *);
107 extern void acl_var_write(uschar *, uschar *, void *);
109 #ifdef EXPERIMENTAL_ARC
110 extern void *arc_ams_setup_sign_bodyhash(void);
111 extern const uschar *arc_header_feed(gstring *, BOOL);
112 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
113 extern void arc_sign_init(void);
114 extern const uschar *acl_verify_arc(void);
115 extern uschar * fn_arc_domains(void);
118 extern void assert_no_variables(void *, int, const char *, int);
119 extern int auth_call_pam(const uschar *, uschar **);
120 extern int auth_call_pwcheck(uschar *, uschar **);
121 extern int auth_call_radius(const uschar *, uschar **);
122 extern int auth_call_saslauthd(const uschar *, const uschar *,
123 const uschar *, const uschar *, uschar **);
124 extern int auth_check_serv_cond(auth_instance *);
125 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
126 extern int auth_client_item(void *, auth_instance *, const uschar **,
127 unsigned, int, uschar *, int);
130 extern int auth_get_data(uschar **, const uschar *, int);
131 extern int auth_get_no64_data(uschar **, uschar *);
132 extern int auth_prompt(const uschar *);
133 extern int auth_read_input(const uschar *);
134 extern gstring * auth_show_supported(gstring *);
135 extern uschar *auth_xtextencode(uschar *, int);
136 extern int auth_xtextdecode(uschar *, uschar **);
137 extern uschar *authenticator_current_name(void);
139 #ifdef EXPERIMENTAL_ARC
140 extern gstring *authres_arc(gstring *);
143 extern gstring *authres_dkim(gstring *);
146 extern gstring *authres_dmarc(gstring *);
148 extern gstring *authres_smtpauth(gstring *);
150 extern gstring *authres_spf(gstring *);
153 extern uschar *b64encode(const uschar *, int);
154 extern uschar *b64encode_taint(const uschar *, int, const void *);
155 extern int b64decode(const uschar *, uschar **);
156 extern int bdat_getc(unsigned);
157 extern uschar *bdat_getbuf(unsigned *);
158 extern BOOL bdat_hasc(void);
159 extern int bdat_ungetc(int);
160 extern void bdat_flush_data(void);
162 extern void bits_clear(unsigned int *, size_t, int *);
163 extern void bits_set(unsigned int *, size_t, int *);
165 extern void cancel_cutthrough_connection(BOOL, const uschar *);
166 extern gstring *cat_file(FILE *, gstring *, uschar *);
167 extern gstring *cat_file_tls(void *, gstring *, uschar *);
168 extern int check_host(void *, const uschar *, const uschar **, uschar **);
169 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
170 extern pid_t child_open_exim_function(int *, const uschar *);
171 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
173 extern pid_t child_open_function(uschar **, uschar **, int,
174 int *, int *, BOOL, const uschar *);
175 extern pid_t child_open_uid(const uschar **, const uschar **, int,
176 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
177 extern BOOL cleanup_environment(void);
178 extern void cutthrough_data_puts(uschar *, int);
179 extern void cutthrough_data_put_nl(void);
180 extern uschar *cutthrough_finaldot(void);
181 extern BOOL cutthrough_flush_send(void);
182 extern BOOL cutthrough_headers_send(void);
183 extern BOOL cutthrough_predata(void);
184 extern void release_cutthrough_connection(const uschar *);
186 extern void daemon_go(void);
187 #ifndef COMPILE_UTILITY
188 extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
189 extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
192 #ifdef EXPERIMENTAL_DCC
193 extern int dcc_process(uschar **);
196 extern void debug_logging_activate(const uschar *, const uschar *);
197 extern void debug_logging_from_spool(const uschar *);
198 extern void debug_logging_stop(BOOL);
199 extern void debug_print_argv(const uschar **);
200 extern void debug_print_ids(uschar *);
201 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
202 extern void debug_print_string(uschar *);
203 extern void debug_print_tree(const char *, tree_node *);
204 extern void debug_vprintf(int, const char *, va_list);
205 extern void debug_pretrigger_setup(const uschar *);
206 extern void debug_pretrigger_discard(void);
207 extern void debug_print_socket(int);
208 extern void debug_trigger_fire(void);
210 extern void decode_bits(unsigned int *, size_t, int *,
211 const uschar *, bit_table *, int, uschar *, int);
212 extern void delete_pid_file(void);
213 extern void deliver_local(address_item *, BOOL);
214 extern address_item *deliver_make_addr(uschar *, BOOL);
215 extern void delivery_log(int, address_item *, int, uschar *);
216 extern int deliver_message(uschar *, BOOL, BOOL);
217 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
218 extern void deliver_set_expansions(address_item *);
219 extern int deliver_split_address(address_item *);
220 extern void deliver_succeeded(address_item *);
222 extern void delivery_re_exec(int);
224 extern void die_tainted(const uschar *, const uschar *, int);
225 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
227 extern uschar *dkim_exim_query_dns_txt(const uschar *);
228 extern void dkim_exim_sign_init(void);
230 extern BOOL dkim_transport_write_message(transport_ctx *,
231 struct ob_dkim *, const uschar ** errstr);
233 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
234 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
235 extern uschar *dns_build_reverse(const uschar *);
236 extern time_t dns_expire_from_soa(dns_answer *, int);
237 extern void dns_init(BOOL, BOOL, BOOL);
238 extern BOOL dns_is_aa(const dns_answer *);
239 extern BOOL dns_is_secure(const dns_answer *);
240 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
241 extern void dns_pattern_init(void);
242 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
243 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
244 extern uschar *dns_text_type(int);
245 extern void dscp_list_to_stream(FILE *);
246 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
248 extern void enq_end(uschar *);
249 extern BOOL enq_start(uschar *, unsigned);
250 #ifndef DISABLE_EVENT
251 extern uschar *event_raise(uschar *, const uschar *, uschar *, int *);
252 extern void msg_event_raise(const uschar *, const address_item *);
255 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
256 extern const uschar * exim_errstr(int);
257 extern void exim_exit(int) NORETURN;
258 extern void exim_gettime(struct timeval *);
259 extern void exim_nullstd(void);
260 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
261 extern void exim_underbar_exit(int) NORETURN;
262 extern void exim_wait_tick(struct timeval *, int);
263 extern int exp_bool(address_item *addr,
264 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
265 uschar *svalue, BOOL *rvalue);
266 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
267 extern uschar *expand_file_big_buffer(const uschar *);
268 extern uschar *expand_string(uschar *); /* public, cannot make const */
269 extern const uschar *expand_string_2(const uschar *, BOOL *);
270 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
271 extern uschar *expand_getkeyed(const uschar *, const uschar *);
273 extern uschar *expand_hide_passwords(uschar * );
274 extern uschar *expand_string_copy(const uschar *);
275 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
276 extern void modify_variable(uschar *, void *);
278 extern BOOL fd_ready(int, time_t);
280 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
281 extern BOOL filter_personal(string_item *, BOOL);
282 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
283 extern BOOL filter_system_interpret(address_item **, uschar **);
285 extern uschar * fn_hdrs_added(void);
286 extern void force_fd(int, int);
288 extern void header_add(int, const char *, ...);
289 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
290 extern int header_checkname(header_line *, BOOL);
291 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
292 extern int host_address_extract_port(uschar *);
293 extern uschar *host_and_ident(BOOL);
294 extern int host_aton(const uschar *, int *);
295 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
296 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
297 extern void host_build_log_info(void);
298 extern void host_build_sender_fullhost(void);
299 extern int host_find_byname(host_item *, const uschar *, int,
300 const uschar **, BOOL);
301 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
302 uschar *, const dnssec_domains *, const uschar **, BOOL *);
303 extern ip_address_item *host_find_interfaces(void);
304 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
305 extern BOOL host_is_tls_on_connect_port(int);
306 extern int host_item_get_port(host_item *);
307 extern void host_mask(int, int *, int);
308 extern int host_name_lookup(void);
309 extern int host_nmtoa(int, int *, int, uschar *, int);
310 extern uschar *host_ntoa(int, const void *, uschar *, int *);
311 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
313 extern uschar *imap_utf7_encode(uschar *, const uschar *,
314 uschar, uschar *, uschar **);
316 extern void invert_address(uschar *, uschar *);
317 extern int ip_addr(void *, int, const uschar *, int);
318 extern int ip_bind(int, int, uschar *, int);
319 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
320 extern int ip_connectedsocket(int, const uschar *, int, int,
321 int, host_item *, uschar **, const blob *);
322 extern int ip_get_address_family(int);
323 extern void ip_keepalive(int, const uschar *, BOOL);
324 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
325 extern int ip_socket(int, int);
327 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
328 extern int ip_unixsocket(const uschar *, uschar **);
329 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
331 extern int ipv6_nmtoa(int *, uschar *);
333 extern uschar *local_part_quote(uschar *);
334 extern int log_open_as_exim(const uschar * const);
335 extern void log_close_all(void);
337 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
338 extern BOOL macro_read_assignment(uschar *);
339 extern uschar *macros_expand(int, int *, BOOL *);
340 extern void mainlog_close(void);
341 #ifdef WITH_CONTENT_SCAN
342 extern int malware(const uschar *, BOOL, int);
343 extern int malware_in_file(uschar *);
344 extern void malware_init(void);
345 extern gstring * malware_show_supported(gstring *);
347 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
348 unsigned int *, int, int, const uschar **);
349 extern int match_address_list_basic(const uschar *, const uschar **, int);
350 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
351 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
352 const uschar *, const uschar **);
353 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
354 unsigned int *, int, BOOL, const uschar **);
355 extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
358 extern void message_start(void);
359 extern void message_tidyup(void);
360 extern void md5_end(md5 *, const uschar *, int, uschar *);
361 extern void md5_mid(md5 *, const uschar *);
362 extern void md5_start(md5 *);
363 extern void millisleep(int);
364 #ifdef WITH_CONTENT_SCAN
365 struct mime_boundary_context;
366 extern int mime_acl_check(uschar *acl, FILE *f,
367 struct mime_boundary_context *, uschar **, uschar **);
368 extern int mime_decode(const uschar **);
369 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
370 extern int mime_regex(const uschar **, BOOL);
371 extern void mime_set_anomaly(int);
373 extern uschar *moan_check_errorcopy(uschar *);
374 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
376 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
377 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
378 header_line *, FILE *, uschar *);
379 extern void moan_tell_someone(uschar *, address_item *,
380 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
381 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
382 extern void moan_write_from(FILE *);
383 extern void moan_write_references(FILE *, uschar *);
384 extern FILE *modefopen(const uschar *, const char *, mode_t);
386 extern int open_cutthrough_connection( address_item * addr );
388 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
390 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
391 const uschar *, const uschar *, error_block **);
392 extern uschar *parse_find_address_end(const uschar *, BOOL);
393 extern const uschar *parse_find_at(const uschar *);
394 extern const uschar *parse_fix_phrase(const uschar *, int);
395 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
396 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
398 extern const uschar *parse_date_time(const uschar *str, time_t *t);
399 extern void priv_drop_temp(const uid_t, const gid_t);
400 extern void priv_restore(void);
401 extern int vaguely_random_number(int);
403 extern int vaguely_random_number_fallback(int);
406 extern BOOL queue_action(uschar *, int, uschar **, int, int);
407 extern void queue_check_only(void);
408 extern unsigned queue_count(void);
409 extern unsigned queue_count_cached(void);
410 extern void queue_list(int, uschar **, int);
411 #ifndef DISABLE_QUEUE_RAMP
412 extern void queue_notify_daemon(const uschar * hostname);
414 extern void queue_run(uschar *, uschar *, BOOL);
416 extern int random_number(int);
417 extern const uschar *rc_to_string(int);
418 extern int rda_interpret(redirect_block *, int, const uschar *, const uschar *,
419 const uschar *, const uschar *, const uschar *, const ugid_block *, address_item **,
420 uschar **, error_block **, int *, const uschar *);
421 extern int rda_is_filter(const uschar *);
422 extern BOOL readconf_depends(driver_instance *, uschar *);
423 extern void readconf_driver_init(uschar *, driver_instance **,
424 driver_info *, int, void *, int, optionlist *, int);
425 extern uschar *readconf_find_option(void *);
426 extern void readconf_main(BOOL);
427 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
428 extern BOOL readconf_print(const uschar *, uschar *, BOOL);
429 extern uschar *readconf_printtime(int);
430 extern const uschar *readconf_readname(uschar *, int, const uschar *);
431 extern int readconf_readtime(const uschar *, int, BOOL);
432 extern void readconf_rest(void);
433 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
434 extern void readconf_save_config(const uschar *);
435 extern void read_message_body(BOOL);
436 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
437 extern BOOL receive_check_fs(int);
438 extern BOOL receive_check_set_sender(uschar *);
439 extern BOOL receive_msg(BOOL);
440 extern int_eximarith_t receive_statvfs(BOOL, int *);
441 extern void receive_swallow_smtp(void);
442 #ifdef WITH_CONTENT_SCAN
443 extern int regex(const uschar **, BOOL);
444 extern void regex_vars_clear(void);
446 extern void regex_at_daemon(const uschar *);
447 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
448 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
449 extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
450 pcre2_compile_context *);
451 extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
452 extern void retry_add_item(address_item *, uschar *, int);
453 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
454 uschar **, uschar **);
455 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
456 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
457 dbdata_retry *, time_t);
458 extern void retry_update(address_item **, address_item **, address_item **);
459 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
460 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
461 extern header_line *rewrite_header(header_line *,
462 const uschar *, const uschar *,
463 rewrite_rule *, int, BOOL);
464 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
466 extern void rewrite_test(const uschar *);
467 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
469 extern int route_address(address_item *, address_item **, address_item **,
470 address_item **, address_item **, int);
471 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
472 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
473 extern BOOL route_findgroup(uschar *, gid_t *);
474 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
475 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
477 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
478 struct passwd **, uid_t *, uschar **);
479 extern void route_init(void);
480 extern gstring * route_show_supported(gstring *);
481 extern void route_tidyup(void);
482 extern uschar *router_current_name(void);
484 extern uschar *search_args(int, uschar *, uschar *, uschar **, const uschar *);
485 extern uschar *search_find(void *, const uschar *, uschar *, int,
486 const uschar *, int, int, int *, const uschar *);
487 extern int search_findtype(const uschar *, int);
488 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
489 int *, const uschar **);
490 extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
491 extern void search_tidyup(void);
492 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
493 extern void sha1_end(hctx *, const uschar *, int, uschar *);
494 extern void sha1_mid(hctx *, const uschar *);
495 extern void sha1_start(hctx *);
496 extern int sieve_interpret(const uschar *, int, const uschar *,
497 const uschar *, const uschar *, const uschar *,
498 address_item **, uschar **);
499 extern void sigalrm_handler(int);
500 extern int smtp_boundsock(smtp_connect_args *);
501 extern void smtp_closedown(uschar *);
502 extern void smtp_command_timeout_exit(void) NORETURN;
503 extern void smtp_command_sigterm_exit(void) NORETURN;
504 extern void smtp_data_timeout_exit(void) NORETURN;
505 extern void smtp_data_sigint_exit(void) NORETURN;
506 extern void smtp_deliver_init(void);
507 extern uschar *smtp_cmd_hist(void);
508 extern int smtp_connect(smtp_connect_args *, const blob *);
509 extern int smtp_feof(void);
510 extern int smtp_ferror(void);
511 extern uschar *smtp_get_connection_info(void);
512 extern BOOL smtp_get_interface(uschar *, int, address_item *,
513 uschar **, uschar *);
514 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
515 extern int smtp_getc(unsigned);
516 extern uschar *smtp_getbuf(unsigned *);
517 extern void smtp_get_cache(unsigned);
518 extern BOOL smtp_hasc(void);
519 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
520 extern void smtp_log_no_mail(void);
521 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
522 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
523 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
524 extern void *smtp_reset(void *);
525 extern void smtp_respond(uschar *, int, BOOL, uschar *);
526 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
527 extern void smtp_port_for_connect(host_item *, int);
528 extern void smtp_send_prohibition_message(int, uschar *);
529 extern int smtp_setup_msg(void);
530 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
531 extern BOOL smtp_start_session(void);
532 extern int smtp_ungetc(int);
533 extern BOOL smtp_verify_helo(void);
534 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
535 #ifdef WITH_CONTENT_SCAN
536 extern int spam(const uschar **);
537 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
539 extern void spool_clear_header_globals(void);
540 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
541 extern int spool_open_datafile(uschar *);
542 extern int spool_open_temp(uschar *);
543 extern int spool_read_header(uschar *, BOOL, BOOL);
544 extern uschar *spool_sender_from_msgid(const uschar *);
545 extern int spool_write_header(uschar *, int, uschar **);
546 extern int stdin_getc(unsigned);
547 extern int stdin_feof(void);
548 extern int stdin_ferror(void);
549 extern BOOL stdin_hasc(void);
550 extern int stdin_ungetc(int);
552 extern void stackdump(void);
553 extern void store_exit(void);
554 extern void store_init(void);
555 extern void store_writeprotect(int);
557 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
558 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
559 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
560 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
561 extern uschar *string_base62(unsigned long int);
562 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
563 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
564 extern int string_compare_by_pointer(const void *, const void *);
565 extern uschar *string_copy_dnsdomain(uschar *);
566 extern uschar *string_copy_malloc(const uschar *);
567 extern uschar *string_dequote(const uschar **);
568 extern uschar *string_format_size(int, uschar *);
569 extern int string_interpret_escape(const uschar **);
570 extern int string_is_ip_address(const uschar *, int *);
572 extern BOOL string_is_utf8(const uschar *);
574 extern const uschar *string_printing2(const uschar *, int);
575 extern uschar *string_split_message(uschar *);
576 extern uschar *string_unprinting(uschar *);
578 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
579 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
580 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
581 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
582 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
585 #define string_format(buf, siz, fmt, ...) \
586 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
587 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
588 const char *, ...) ALMOST_PRINTF(5,6);
590 #define string_vformat(g, flgs, fmt, ap) \
591 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
592 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
593 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
594 unsigned, unsigned, const char *, va_list);
596 #define string_open_failed(fmt, ...) \
597 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
598 extern uschar *string_open_failed_trc(const uschar *, unsigned,
599 const char *, ...) PRINTF_FUNCTION(3,4);
601 #define string_nextinlist(lp, sp, b, l) \
602 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
603 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
604 const uschar * func, int line);
606 extern int strcmpic(const uschar *, const uschar *);
607 extern int strncmpic(const uschar *, const uschar *, int);
608 extern uschar *strstric(uschar *, uschar *, BOOL);
609 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
611 extern int test_harness_fudged_queue_time(int);
612 extern void tcp_init(void);
613 #ifdef EXIM_TFO_PROBE
614 extern void tfo_probe(void);
616 extern void tls_modify_variables(tls_support *);
617 extern uschar *tod_stamp(int);
619 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
621 extern uschar *transport_current_name(void);
622 extern void transport_do_pass_socket(const uschar *, const uschar *,
623 const uschar *, uschar *, int);
624 extern void transport_init(void);
625 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
626 #ifdef EXPERIMENTAL_ESMTP_LIMITS
627 , unsigned, unsigned, unsigned
630 extern uschar *transport_rcpt_address(address_item *, BOOL);
631 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
632 BOOL, int, address_item *, BOOL, const uschar *, uschar **);
633 extern void transport_update_waiting(host_item *, uschar *);
634 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
635 extern void transport_write_reset(int);
636 extern BOOL transport_write_string(int, const char *, ...);
637 extern BOOL transport_headers_send(transport_ctx *,
638 BOOL (*)(transport_ctx *, uschar *, int));
639 extern gstring * transport_show_supported(gstring *);
640 extern BOOL transport_write_message(transport_ctx *, int);
641 extern void tree_add_duplicate(const uschar *, address_item *);
642 extern void tree_add_nonrecipient(const uschar *);
643 extern void tree_add_unusable(const host_item *);
644 extern void tree_dup(tree_node **, tree_node *);
645 extern int tree_insertnode(tree_node **, tree_node *);
646 extern tree_node *tree_search(tree_node *, const uschar *);
647 extern void tree_write(tree_node *, FILE *);
648 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
650 #ifdef WITH_CONTENT_SCAN
651 extern void unspool_mbox(void);
654 extern gstring *utf8_version_report(gstring *);
657 extern int verify_address(address_item *, FILE *, int, int, int, int,
658 uschar *, uschar *, BOOL *);
659 extern int verify_check_dnsbl(int, const uschar **, uschar **);
660 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
661 uschar *, uschar *, int, int *);
662 extern int verify_check_headers(uschar **);
663 extern int verify_check_header_names_ascii(uschar **);
664 extern int verify_check_host(uschar **);
665 extern int verify_check_notblind(BOOL);
666 extern int verify_check_given_host(const uschar **, const host_item *);
667 extern int verify_check_this_host(const uschar **, unsigned int *,
668 const uschar*, const uschar *, const uschar **);
669 extern address_item *verify_checked_sender(uschar *);
670 extern void verify_get_ident(int);
671 extern void verify_quota(uschar *);
672 extern int verify_quota_call(const uschar *, int, int, uschar **);
673 extern BOOL verify_sender(int *, uschar **);
674 extern BOOL verify_sender_preliminary(int *, uschar **);
675 extern void version_init(void);
677 extern BOOL write_chunk(transport_ctx *, uschar *, int);
678 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
681 /******************************************************************************/
682 /* Predicate: if an address is in a tainted pool.
683 By extension, a variable pointing to this address is tainted.
687 is_tainted(const void * p)
689 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
693 extern BOOL is_tainted_fn(const void *);
694 return is_tainted_fn(p);
699 is_incompatible(const void * old, const void * new)
701 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
705 extern BOOL is_incompatible_fn(const void *, const void *);
706 return is_incompatible_fn(old, new);
710 /******************************************************************************/
711 /* String functions */
712 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
714 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
715 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
717 return US strcat(CS dst, CCS src);
719 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
721 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
722 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
724 return US strcpy(CS dst, CCS src);
726 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
728 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
729 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
731 return US strncat(CS dst, CCS src, n);
733 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
735 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
736 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
738 return US strncpy(CS dst, CCS src, n);
740 /*XXX will likely need unchecked copy also */
743 /* Advance the string pointer given over any whitespace.
744 Return the next char as there's enought places using it to be useful. */
746 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
748 static inline uschar skip_whitespace(const uschar ** sp)
749 { while (isspace(**sp)) (*sp)++; return **sp; }
752 /******************************************************************************/
754 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
755 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
756 chown(<exim-uid>, <exim-gid>).
758 Probably because the idmapping is broken, misconfigured or set up in
759 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
760 case of misconfiguration, or if there are more such broken systems
761 out, I try to impose as least impact as possible and for now just write
762 a panic log entry pointing to the bug report. You're encouraged to
763 contact the developers, if you experience this issue.
765 fd the file descriptor (or -1 if not valid)
766 name the file name for error messages or for file operations,
771 returns 0 on success, -1 on failure */
774 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
776 return fchown(fd, owner, group)
777 ? exim_chown_failure(fd, name, owner, group) : 0;
781 exim_chown(const uschar *name, uid_t owner, gid_t group)
783 return chown(CCS name, owner, group)
784 ? exim_chown_failure(-1, name, owner, group) : 0;
786 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
788 /******************************************************************************/
789 /* String functions */
791 #if !defined(MACRO_PREDEF)
792 /*************************************************
793 * Copy and save string *
794 *************************************************/
796 /* This function assumes that memcpy() is faster than strcpy().
797 The result is explicitly nul-terminated.
800 static inline uschar *
801 string_copyn_taint_trc(const uschar * s, unsigned len,
802 const void * proto_mem, const char * func, int line)
805 unsigned slen = Ustrlen(s);
806 if (len > slen) len = slen;
807 ss = store_get_3(len + 1, proto_mem, func, line);
813 static inline uschar *
814 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
815 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
817 static inline uschar *
818 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
819 { return string_copyn_taint_trc(s, len, s, func, line); }
820 static inline uschar *
821 string_copy_trc(const uschar * s, const char * func, int line)
822 { return string_copy_taint_trc(s, s, func, line); }
825 /* String-copy functions explicitly setting the taint status */
827 #define string_copyn_taint(s, len, proto_mem) \
828 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
829 #define string_copy_taint(s, proto_mem) \
830 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
832 /* Simple string-copy functions maintaining the taint */
834 #define string_copyn(s, len) \
835 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
836 #define string_copy(s) \
837 string_copy_trc((s), __FUNCTION__, __LINE__)
840 /*************************************************
841 * Copy, lowercase and save string *
842 *************************************************/
845 Argument: string to copy
846 Returns: copy of string in new store, with letters lowercased
849 static inline uschar *
850 string_copylc(const uschar * s)
852 uschar * ss = store_get(Ustrlen(s) + 1, s);
854 while (*s) *p++ = tolower(*s++);
861 /*************************************************
862 * Copy, lowercase, and save string, given length *
863 *************************************************/
865 /* It is assumed the data contains no zeros. A zero is added
870 n number of characters
872 Returns: copy of string in new store, with letters lowercased
875 static inline uschar *
876 string_copynlc(uschar * s, int n)
878 uschar * ss = store_get(n + 1, s);
880 while (n-- > 0) *p++ = tolower(*s++);
886 # ifndef COMPILE_UTILITY
887 /*************************************************
888 * Copy and save string in longterm store *
889 *************************************************/
891 /* This function assumes that memcpy() is faster than strcpy().
893 Argument: string to copy
894 Returns: copy of string in new store
897 static inline uschar *
898 string_copy_perm(const uschar *s, BOOL force_taint)
900 int old_pool = store_pool;
901 int len = Ustrlen(s) + 1;
904 store_pool = POOL_PERM;
905 ss = store_get(len, force_taint ? GET_TAINTED : s);
907 store_pool = old_pool;
914 /* sprintf into a buffer, taint-unchecked */
917 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
919 gstring gs = { .size = siz, .ptr = 0, .s = buf };
922 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
928 /******************************************************************************/
929 /* Growable-string functions */
931 /* Create a growable-string with some preassigned space */
933 #define string_get_tainted(size, proto_mem) \
934 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
936 static inline gstring *
937 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
939 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
940 g->size = size; /*XXX would be good if we could see the actual alloc size */
946 #define string_get(size) \
947 string_get_trc((size), __FUNCTION__, __LINE__)
949 static inline gstring *
950 string_get_trc(unsigned size, const char * func, unsigned line)
952 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
955 /* NUL-terminate the C string in the growable-string, and return it. */
957 static inline uschar *
958 string_from_gstring(gstring * g)
965 static inline unsigned
966 gstring_length(const gstring * g)
968 return g ? (unsigned)g->ptr : 0;
972 #define gstring_release_unused(g) \
973 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
976 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
978 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
982 /* sprintf-append to a growable-string */
984 #define string_fmt_append(g, fmt, ...) \
985 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
986 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
988 #define string_fmt_append_f(g, flgs, fmt, ...) \
989 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
990 flgs, fmt, __VA_ARGS__)
992 static inline gstring *
993 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
994 unsigned flags, const char *format, ...)
997 va_start(ap, format);
998 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
1005 /* Copy the content of a string to tainted memory. The proto_mem arg
1006 will always be tainted, and suitable as a prototype. */
1009 gstring_rebuffer(gstring * g, const void * proto_mem)
1011 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1012 memcpy(s, g->s, g->ptr);
1017 # ifndef COMPILE_UTILITY
1018 /******************************************************************************/
1019 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1020 for them as the strings we proceed to copy from them meant they could not be
1021 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1022 we do have to take care over marking tainted all copied strings. A separate pool
1023 could be used and would handle that implicitly. */
1025 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1027 static inline dns_answer *
1028 store_get_dns_answer_trc(const uschar * func, unsigned line)
1030 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1033 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1036 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1038 store_free_3(dnsa, CCS func, line);
1041 /******************************************************************************/
1042 /* Routines with knowledge of spool layout */
1045 spool_pname_buf(uschar * buf, int len)
1047 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1050 static inline uschar *
1051 spool_dname(const uschar * purpose, uschar * subdir)
1053 return string_sprintf("%s/%s/%s/%s",
1054 spool_directory, queue_name, purpose, subdir);
1058 static inline uschar *
1059 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
1061 return string_sprintf("%s%s%s%s%s",
1064 *subdir ? "/" : "", subdir);
1067 static inline uschar *
1068 spool_sname(const uschar * purpose, uschar * subdir)
1070 return spool_q_sname(purpose, queue_name, subdir);
1073 static inline uschar *
1074 spool_q_fname(const uschar * purpose, const uschar * q,
1075 const uschar * subdir, const uschar * fname, const uschar * suffix)
1077 return string_sprintf("%s/%s/%s/%s/%s%s",
1078 spool_directory, q, purpose, subdir, fname, suffix);
1081 static inline uschar *
1082 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1083 const uschar * suffix)
1085 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1086 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1087 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1088 uschar * buf = store_get(len, GET_UNTAINTED);
1089 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1090 spool_directory, queue_name, purpose, subdir, fname, suffix);
1093 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1098 set_subdir_str(uschar * subdir_str, const uschar * name,
1099 int search_sequence)
1101 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1103 subdir_str[1] = '\0';
1106 /******************************************************************************/
1107 /* Time calculations */
1109 /* Diff two times (later, earlier) returning diff in 1st arg */
1111 timediff(struct timeval * later, const struct timeval * earlier)
1113 later->tv_sec -= earlier->tv_sec;
1114 if ((later->tv_usec -= earlier->tv_usec) < 0)
1117 later->tv_usec += 1000*1000;
1122 timesince(struct timeval * diff, const struct timeval * then)
1124 gettimeofday(diff, NULL);
1125 timediff(diff, then);
1128 static inline uschar *
1129 string_timediff(const struct timeval * diff)
1131 static uschar buf[sizeof("0.000s")];
1133 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1134 return readconf_printtime((int)diff->tv_sec);
1136 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1141 static inline uschar *
1142 string_timesince(const struct timeval * then)
1144 struct timeval diff;
1145 timesince(&diff, then);
1146 return string_timediff(&diff);
1150 report_time_since(const struct timeval * t0, const uschar * where)
1152 # ifdef MEASURE_TIMING
1153 struct timeval diff;
1154 timesince(&diff, t0);
1155 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1156 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1162 testharness_pause_ms(int millisec)
1164 #ifndef MEASURE_TIMING
1165 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1169 /******************************************************************************/
1170 /* Taint-checked file opens */
1173 exim_open2(const char *pathname, int flags)
1175 if (!is_tainted(pathname)) return open(pathname, flags);
1176 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1181 exim_open(const char *pathname, int flags, mode_t mode)
1183 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1184 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1188 #ifdef EXIM_HAVE_OPENAT
1190 exim_openat(int dirfd, const char *pathname, int flags)
1192 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1193 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1198 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1200 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1201 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1207 static inline FILE *
1208 exim_fopen(const char *pathname, const char *mode)
1210 if (!is_tainted(pathname)) return fopen(pathname, mode);
1211 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1217 exim_opendir(const uschar * name)
1219 if (!is_tainted(name)) return opendir(CCS name);
1220 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1225 /******************************************************************************/
1226 # if !defined(COMPILE_UTILITY)
1227 /* Process manipulation */
1230 exim_fork(const unsigned char * purpose)
1233 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1234 if ((pid = fork()) == 0)
1236 f.daemon_listen = FALSE;
1237 process_purpose = purpose;
1238 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1242 testharness_pause_ms(100); /* let child work */
1243 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1250 child_open_exim(int * fdptr, const uschar * purpose)
1251 { return child_open_exim_function(fdptr, purpose); }
1254 child_open_exim2(int * fdptr, uschar * sender,
1255 uschar * sender_auth, const uschar * purpose)
1256 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1259 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1260 int *outfdptr, BOOL make_leader, const uschar * purpose)
1261 { return child_open_function(argv, envp, newumask, infdptr,
1262 outfdptr, make_leader, purpose);
1265 /* Return 1 if fd is usable per pollbits, else 0 */
1267 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1269 struct pollfd p = {.fd = fd, .events = pollbits};
1270 return poll(&p, 1, tmo_millisec);
1273 /******************************************************************************/
1274 /* Client-side smtp log string, for debug */
1277 smtp_debug_cmd(const uschar * buf, int mode)
1279 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1280 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1282 # ifndef DISABLE_CLIENT_CMD_LOG
1284 int len = Ustrcspn(buf, " \n");
1285 int old_pool = store_pool;
1286 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1287 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1288 if (mode == SCMD_BUFFER)
1290 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1291 (void) string_from_gstring(client_cmd_log);
1293 store_pool = old_pool;
1300 smtp_debug_cmd_report(void)
1302 # ifndef DISABLE_CLIENT_CMD_LOG
1303 debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)");
1309 # endif /* !COMPILE_UTILITY */
1311 /******************************************************************************/
1312 #endif /* !MACRO_PREDEF */
1314 #endif /* _FUNCTIONS_H_ */
1318 /* End of functions.h */