1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) The Exim Maintainers 2020 - 2023 */
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(qrunner *, 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 uschar *sender_helo_verified_boolstr(void);
493 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
494 extern void sha1_end(hctx *, const uschar *, int, uschar *);
495 extern void sha1_mid(hctx *, const uschar *);
496 extern void sha1_start(hctx *);
497 extern int sieve_interpret(const uschar *, int, const uschar *,
498 const uschar *, const uschar *, const uschar *,
499 address_item **, uschar **);
500 extern void sigalrm_handler(int);
501 extern void single_queue_run(qrunner *, uschar *, uschar *);
502 extern int smtp_boundsock(smtp_connect_args *);
503 extern void smtp_closedown(uschar *);
504 extern void smtp_command_timeout_exit(void) NORETURN;
505 extern void smtp_command_sigterm_exit(void) NORETURN;
506 extern void smtp_data_timeout_exit(void) NORETURN;
507 extern void smtp_data_sigint_exit(void) NORETURN;
508 extern void smtp_deliver_init(void);
509 extern uschar *smtp_cmd_hist(void);
510 extern int smtp_connect(smtp_connect_args *, const blob *);
511 extern int smtp_feof(void);
512 extern int smtp_ferror(void);
513 extern uschar *smtp_get_connection_info(void);
514 extern BOOL smtp_get_interface(uschar *, int, address_item *,
515 uschar **, uschar *);
516 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
517 extern int smtp_getc(unsigned);
518 extern uschar *smtp_getbuf(unsigned *);
519 extern void smtp_get_cache(unsigned);
520 extern BOOL smtp_hasc(void);
521 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
522 extern void smtp_log_no_mail(void);
523 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
524 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
525 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
526 extern void *smtp_reset(void *);
527 extern void smtp_respond(uschar *, int, BOOL, uschar *);
528 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
529 extern void smtp_port_for_connect(host_item *, int);
530 extern void smtp_send_prohibition_message(int, uschar *);
531 extern int smtp_setup_msg(void);
532 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
533 extern BOOL smtp_start_session(void);
534 extern int smtp_ungetc(int);
535 extern BOOL smtp_verify_helo(void);
536 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
537 #ifdef WITH_CONTENT_SCAN
538 extern int spam(const uschar **);
539 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
541 extern void spool_clear_header_globals(void);
542 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
543 extern int spool_open_datafile(uschar *);
544 extern int spool_open_temp(uschar *);
545 extern int spool_read_header(uschar *, BOOL, BOOL);
546 extern uschar *spool_sender_from_msgid(const uschar *);
547 extern int spool_write_header(uschar *, int, uschar **);
548 extern int stdin_getc(unsigned);
549 extern int stdin_feof(void);
550 extern int stdin_ferror(void);
551 extern BOOL stdin_hasc(void);
552 extern int stdin_ungetc(int);
554 extern void stackdump(void);
555 extern void store_exit(void);
556 extern void store_init(void);
557 extern void store_writeprotect(int);
559 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
560 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
561 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
562 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
563 extern uschar *string_base62(unsigned long int);
564 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
565 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
566 extern int string_compare_by_pointer(const void *, const void *);
567 extern uschar *string_copy_dnsdomain(uschar *);
568 extern uschar *string_copy_malloc(const uschar *);
569 extern uschar *string_dequote(const uschar **);
570 extern uschar *string_format_size(int, uschar *);
571 extern int string_interpret_escape(const uschar **);
572 extern int string_is_ip_address(const uschar *, int *);
574 extern BOOL string_is_utf8(const uschar *);
576 extern const uschar *string_printing2(const uschar *, int);
577 extern uschar *string_split_message(uschar *);
578 extern uschar *string_unprinting(uschar *);
580 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
581 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
582 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
583 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
584 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
587 #define string_format(buf, siz, fmt, ...) \
588 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
589 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
590 const char *, ...) ALMOST_PRINTF(5,6);
592 #define string_vformat(g, flgs, fmt, ap) \
593 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
594 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
595 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
596 unsigned, unsigned, const char *, va_list);
598 #define string_open_failed(fmt, ...) \
599 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
600 extern uschar *string_open_failed_trc(const uschar *, unsigned,
601 const char *, ...) PRINTF_FUNCTION(3,4);
603 #define string_nextinlist(lp, sp, b, l) \
604 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
605 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
606 const uschar * func, int line);
608 extern int strcmpic(const uschar *, const uschar *);
609 extern int strncmpic(const uschar *, const uschar *, int);
610 extern uschar *strstric(uschar *, uschar *, BOOL);
611 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
613 extern int test_harness_fudged_queue_time(int);
614 extern void tcp_init(void);
615 #ifdef EXIM_TFO_PROBE
616 extern void tfo_probe(void);
618 extern void tls_modify_variables(tls_support *);
619 extern uschar *tod_stamp(int);
621 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
623 extern uschar *transport_current_name(void);
624 extern void transport_do_pass_socket(const uschar *, const uschar *,
625 const uschar *, uschar *, int);
626 extern void transport_init(void);
627 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
628 #ifdef EXPERIMENTAL_ESMTP_LIMITS
629 , unsigned, unsigned, unsigned
632 extern uschar *transport_rcpt_address(address_item *, BOOL);
633 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
634 BOOL, int, address_item *, BOOL, const uschar *, uschar **);
635 extern void transport_update_waiting(host_item *, uschar *);
636 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
637 extern void transport_write_reset(int);
638 extern BOOL transport_write_string(int, const char *, ...);
639 extern BOOL transport_headers_send(transport_ctx *,
640 BOOL (*)(transport_ctx *, uschar *, int));
641 extern gstring * transport_show_supported(gstring *);
642 extern BOOL transport_write_message(transport_ctx *, int);
643 extern void tree_add_duplicate(const uschar *, address_item *);
644 extern void tree_add_nonrecipient(const uschar *);
645 extern void tree_add_unusable(const host_item *);
646 extern void tree_dup(tree_node **, tree_node *);
647 extern int tree_insertnode(tree_node **, tree_node *);
648 extern tree_node *tree_search(tree_node *, const uschar *);
649 extern void tree_write(tree_node *, FILE *);
650 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
652 #ifdef WITH_CONTENT_SCAN
653 extern void unspool_mbox(void);
656 extern gstring *utf8_version_report(gstring *);
659 extern int verify_address(address_item *, FILE *, int, int, int, int,
660 uschar *, uschar *, BOOL *);
661 extern int verify_check_dnsbl(int, const uschar **, uschar **);
662 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
663 uschar *, uschar *, int, int *);
664 extern int verify_check_headers(uschar **);
665 extern int verify_check_header_names_ascii(uschar **);
666 extern int verify_check_host(uschar **);
667 extern int verify_check_notblind(BOOL);
668 extern int verify_check_given_host(const uschar **, const host_item *);
669 extern int verify_check_this_host(const uschar **, unsigned int *,
670 const uschar*, const uschar *, const uschar **);
671 extern address_item *verify_checked_sender(uschar *);
672 extern void verify_get_ident(int);
673 extern void verify_quota(uschar *);
674 extern int verify_quota_call(const uschar *, int, int, uschar **);
675 extern BOOL verify_sender(int *, uschar **);
676 extern BOOL verify_sender_preliminary(int *, uschar **);
677 extern void version_init(void);
679 extern BOOL write_chunk(transport_ctx *, uschar *, int);
680 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
681 extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
684 /******************************************************************************/
685 /* Predicate: if an address is in a tainted pool.
686 By extension, a variable pointing to this address is tainted.
690 is_tainted(const void * p)
692 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
696 extern BOOL is_tainted_fn(const void *);
697 return is_tainted_fn(p);
702 is_incompatible(const void * old, const void * new)
704 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
708 extern BOOL is_incompatible_fn(const void *, const void *);
709 return is_incompatible_fn(old, new);
713 /******************************************************************************/
714 /* String functions */
715 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
717 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
718 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
720 return US strcat(CS dst, CCS src);
722 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
724 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
725 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
727 return US strcpy(CS dst, CCS src);
729 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
731 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
732 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
734 return US strncat(CS dst, CCS src, n);
736 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
738 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
739 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
741 return US strncpy(CS dst, CCS src, n);
743 /*XXX will likely need unchecked copy also */
746 /* Advance the string pointer given over any whitespace.
747 Return the next char as there's enought places using it to be useful. */
749 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
751 static inline uschar skip_whitespace(const uschar ** sp)
752 { while (isspace(**sp)) (*sp)++; return **sp; }
755 /******************************************************************************/
757 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
758 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
759 chown(<exim-uid>, <exim-gid>).
761 Probably because the idmapping is broken, misconfigured or set up in
762 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
763 case of misconfiguration, or if there are more such broken systems
764 out, I try to impose as least impact as possible and for now just write
765 a panic log entry pointing to the bug report. You're encouraged to
766 contact the developers, if you experience this issue.
768 fd the file descriptor (or -1 if not valid)
769 name the file name for error messages or for file operations,
774 returns 0 on success, -1 on failure */
777 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
779 return fchown(fd, owner, group)
780 ? exim_chown_failure(fd, name, owner, group) : 0;
784 exim_chown(const uschar *name, uid_t owner, gid_t group)
786 return chown(CCS name, owner, group)
787 ? exim_chown_failure(-1, name, owner, group) : 0;
789 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
791 /******************************************************************************/
792 /* String functions */
794 #if !defined(MACRO_PREDEF)
795 /*************************************************
796 * Copy and save string *
797 *************************************************/
799 /* This function assumes that memcpy() is faster than strcpy().
800 The result is explicitly nul-terminated.
803 static inline uschar *
804 string_copyn_taint_trc(const uschar * s, unsigned len,
805 const void * proto_mem, const char * func, int line)
808 unsigned slen = Ustrlen(s);
809 if (len > slen) len = slen;
810 ss = store_get_3(len + 1, proto_mem, func, line);
816 static inline uschar *
817 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
818 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
820 static inline uschar *
821 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
822 { return string_copyn_taint_trc(s, len, s, func, line); }
823 static inline uschar *
824 string_copy_trc(const uschar * s, const char * func, int line)
825 { return string_copy_taint_trc(s, s, func, line); }
828 /* String-copy functions explicitly setting the taint status */
830 #define string_copyn_taint(s, len, proto_mem) \
831 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
832 #define string_copy_taint(s, proto_mem) \
833 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
835 /* Simple string-copy functions maintaining the taint */
837 #define string_copyn(s, len) \
838 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
839 #define string_copy(s) \
840 string_copy_trc((s), __FUNCTION__, __LINE__)
843 /*************************************************
844 * Copy, lowercase and save string *
845 *************************************************/
848 Argument: string to copy
849 Returns: copy of string in new store, with letters lowercased
852 static inline uschar *
853 string_copylc(const uschar * s)
855 uschar * ss = store_get(Ustrlen(s) + 1, s);
857 while (*s) *p++ = tolower(*s++);
864 /*************************************************
865 * Copy, lowercase, and save string, given length *
866 *************************************************/
868 /* It is assumed the data contains no zeros. A zero is added
873 n number of characters
875 Returns: copy of string in new store, with letters lowercased
878 static inline uschar *
879 string_copynlc(uschar * s, int n)
881 uschar * ss = store_get(n + 1, s);
883 while (n-- > 0) *p++ = tolower(*s++);
889 # ifndef COMPILE_UTILITY
890 /*************************************************
891 * Copy and save string in longterm store *
892 *************************************************/
894 /* This function assumes that memcpy() is faster than strcpy().
896 Argument: string to copy
897 Returns: copy of string in new store
900 static inline uschar *
901 string_copy_perm(const uschar *s, BOOL force_taint)
903 int old_pool = store_pool;
904 int len = Ustrlen(s) + 1;
907 store_pool = POOL_PERM;
908 ss = store_get(len, force_taint ? GET_TAINTED : s);
910 store_pool = old_pool;
917 /* sprintf into a buffer, taint-unchecked */
920 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
922 gstring gs = { .size = siz, .ptr = 0, .s = buf };
925 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
931 /******************************************************************************/
932 /* Growable-string functions */
934 /* Create a growable-string with some preassigned space */
936 #define string_get_tainted(size, proto_mem) \
937 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
939 static inline gstring *
940 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
942 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
943 g->size = size; /*XXX would be good if we could see the actual alloc size */
949 #define string_get(size) \
950 string_get_trc((size), __FUNCTION__, __LINE__)
952 static inline gstring *
953 string_get_trc(unsigned size, const char * func, unsigned line)
955 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
958 /* NUL-terminate the C string in the growable-string, and return it. */
960 static inline uschar *
961 string_from_gstring(gstring * g)
969 len_string_from_gstring(gstring * g, uschar ** sp)
984 static inline uschar *
985 string_copy_from_gstring(gstring * g)
987 return g ? string_copyn(g->s, g->ptr) : NULL;
990 static inline unsigned
991 gstring_length(const gstring * g)
993 return g ? (unsigned)g->ptr : 0;
997 gstring_last_char(gstring * g)
999 return g->s[g->ptr-1];
1003 gstring_trim(gstring * g, unsigned amount)
1009 gstring_trim_trailing(gstring * g, uschar c)
1011 if (gstring_last_char(g) == c) gstring_trim(g, 1);
1015 gstring_reset(gstring * g)
1021 #define gstring_release_unused(g) \
1022 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
1025 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
1027 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
1031 /* sprintf-append to a growable-string */
1033 #define string_fmt_append(g, fmt, ...) \
1034 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1035 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
1037 #define string_fmt_append_f(g, flgs, fmt, ...) \
1038 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1039 flgs, fmt, __VA_ARGS__)
1041 static inline gstring *
1042 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
1043 unsigned flags, const char *format, ...)
1046 va_start(ap, format);
1047 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
1054 /* Copy the content of a string to tainted memory. The proto_mem arg
1055 will always be tainted, and suitable as a prototype. */
1058 gstring_rebuffer(gstring * g, const void * proto_mem)
1060 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1061 memcpy(s, g->s, g->ptr);
1065 /* Append one gstring to another */
1066 static inline gstring *
1067 gstring_append(gstring * dest, gstring * item)
1069 return string_catn(dest, item->s, item->ptr);
1073 # ifndef COMPILE_UTILITY
1074 /******************************************************************************/
1075 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1076 for them as the strings we proceed to copy from them meant they could not be
1077 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1078 we do have to take care over marking tainted all copied strings. A separate pool
1079 could be used and would handle that implicitly. */
1081 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1083 static inline dns_answer *
1084 store_get_dns_answer_trc(const uschar * func, unsigned line)
1086 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1089 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1092 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1094 store_free_3(dnsa, CCS func, line);
1097 /******************************************************************************/
1098 /* Routines with knowledge of spool layout */
1101 spool_pname_buf(uschar * buf, int len)
1103 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1106 static inline uschar *
1107 spool_dname(const uschar * purpose, uschar * subdir)
1109 return string_sprintf("%s/%s/%s/%s",
1110 spool_directory, queue_name, purpose, subdir);
1114 static inline uschar *
1115 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
1117 return string_sprintf("%s%s%s%s%s",
1120 *subdir ? "/" : "", subdir);
1123 static inline uschar *
1124 spool_sname(const uschar * purpose, uschar * subdir)
1126 return spool_q_sname(purpose, queue_name, subdir);
1129 static inline uschar *
1130 spool_q_fname(const uschar * purpose, const uschar * q,
1131 const uschar * subdir, const uschar * fname, const uschar * suffix)
1133 return string_sprintf("%s/%s/%s/%s/%s%s",
1134 spool_directory, q, purpose, subdir, fname, suffix);
1137 static inline uschar *
1138 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1139 const uschar * suffix)
1141 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1142 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1143 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1144 uschar * buf = store_get(len, GET_UNTAINTED);
1145 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1146 spool_directory, queue_name, purpose, subdir, fname, suffix);
1149 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1154 set_subdir_str(uschar * subdir_str, const uschar * name,
1155 int search_sequence)
1157 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1159 subdir_str[1] = '\0';
1162 /******************************************************************************/
1163 /* Time calculations */
1165 /* Diff two times (later, earlier) returning diff in 1st arg */
1167 timediff(struct timeval * later, const struct timeval * earlier)
1169 later->tv_sec -= earlier->tv_sec;
1170 if ((later->tv_usec -= earlier->tv_usec) < 0)
1173 later->tv_usec += 1000*1000;
1178 timesince(struct timeval * diff, const struct timeval * then)
1180 gettimeofday(diff, NULL);
1181 timediff(diff, then);
1184 static inline uschar *
1185 string_timediff(const struct timeval * diff)
1187 static uschar buf[sizeof("0.000s")];
1189 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1190 return readconf_printtime((int)diff->tv_sec);
1192 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1197 static inline uschar *
1198 string_timesince(const struct timeval * then)
1200 struct timeval diff;
1201 timesince(&diff, then);
1202 return string_timediff(&diff);
1206 report_time_since(const struct timeval * t0, const uschar * where)
1208 # ifdef MEASURE_TIMING
1209 struct timeval diff;
1210 timesince(&diff, t0);
1211 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1212 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1218 testharness_pause_ms(int millisec)
1220 #ifndef MEASURE_TIMING
1221 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1225 /******************************************************************************/
1226 /* Taint-checked file opens */
1229 exim_open2(const char *pathname, int flags)
1231 if (!is_tainted(pathname)) return open(pathname, flags);
1232 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1237 exim_open(const char *pathname, int flags, mode_t mode)
1239 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1240 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1244 #ifdef EXIM_HAVE_OPENAT
1246 exim_openat(int dirfd, const char *pathname, int flags)
1248 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1249 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1254 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1256 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1257 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1263 static inline FILE *
1264 exim_fopen(const char *pathname, const char *mode)
1266 if (!is_tainted(pathname)) return fopen(pathname, mode);
1267 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1273 exim_opendir(const uschar * name)
1275 if (!is_tainted(name)) return opendir(CCS name);
1276 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1281 /******************************************************************************/
1282 # if !defined(COMPILE_UTILITY)
1283 /* Process manipulation */
1286 exim_fork(const unsigned char * purpose)
1289 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1290 if ((pid = fork()) == 0)
1292 f.daemon_listen = FALSE;
1293 process_purpose = purpose;
1294 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1298 testharness_pause_ms(100); /* let child work */
1299 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1306 child_open_exim(int * fdptr, const uschar * purpose)
1307 { return child_open_exim_function(fdptr, purpose); }
1310 child_open_exim2(int * fdptr, uschar * sender,
1311 uschar * sender_auth, const uschar * purpose)
1312 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1315 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1316 int *outfdptr, BOOL make_leader, const uschar * purpose)
1317 { return child_open_function(argv, envp, newumask, infdptr,
1318 outfdptr, make_leader, purpose);
1321 /* Return 1 if fd is usable per pollbits, else 0 */
1323 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1325 struct pollfd p = {.fd = fd, .events = pollbits};
1326 return poll(&p, 1, tmo_millisec);
1329 /******************************************************************************/
1330 /* Client-side smtp log string, for debug */
1333 smtp_debug_cmd(const uschar * buf, int mode)
1335 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1336 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1338 # ifndef DISABLE_CLIENT_CMD_LOG
1340 int len = Ustrcspn(buf, " \n");
1341 int old_pool = store_pool;
1342 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1343 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1344 if (mode == SCMD_BUFFER)
1346 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1347 (void) string_from_gstring(client_cmd_log);
1349 store_pool = old_pool;
1356 smtp_debug_cmd_report(void)
1358 # ifndef DISABLE_CLIENT_CMD_LOG
1359 debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)");
1366 expand_max_rcpt(const uschar * str_max_rcpt)
1368 const uschar * s = expand_cstring(str_max_rcpt);
1370 return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
1373 /******************************************************************************/
1374 /* Queue-runner operations */
1377 is_onetime_qrun(void)
1379 return qrunners && !qrunners->next && qrunners->interval == 0;
1383 is_multiple_qrun(void)
1385 return qrunners && (qrunners->interval > 0 || qrunners->next);
1389 # endif /* !COMPILE_UTILITY */
1391 /******************************************************************************/
1392 #endif /* !MACRO_PREDEF */
1394 #endif /* _FUNCTIONS_H_ */
1398 /* End of functions.h */