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 BOOL tls_client_adjunct_start(host_item *, client_conn_ctx *,
58 const uschar *, uschar **);
59 extern void tls_client_creds_reload(BOOL);
61 extern void tls_close(void *, int);
62 extern BOOL tls_could_getc(void);
63 extern void tls_daemon_init(void);
64 extern int tls_daemon_tick(void);
65 extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
66 extern BOOL tls_export_cert(uschar *, size_t, void *);
67 extern int tls_feof(void);
68 extern int tls_ferror(void);
69 extern uschar *tls_field_from_dn(uschar *, const uschar *);
70 extern void tls_free_cert(void **);
71 extern int tls_getc(unsigned);
72 extern uschar *tls_getbuf(unsigned *);
73 extern void tls_get_cache(unsigned);
74 extern BOOL tls_hasc(void);
75 extern BOOL tls_import_cert(const uschar *, void **);
76 extern BOOL tls_is_name_for_cert(const uschar *, void *);
78 extern BOOL tls_openssl_options_parse(uschar *, long *);
80 extern int tls_read(void *, uschar *, size_t);
81 extern int tls_server_start(uschar **);
82 extern void tls_shutdown_wr(void *);
83 extern BOOL tls_smtp_buffered(void);
84 extern int tls_ungetc(int);
85 #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT)
86 extern void tls_watch_discard_event(int);
87 extern void tls_watch_invalidate(void);
89 extern int tls_write(void *, const uschar *, size_t, BOOL);
90 extern uschar *tls_validate_require_cipher(void);
91 extern gstring *tls_version_report(gstring *);
94 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
97 #endif /*DISABLE_TLS*/
100 /* Everything else... */
102 extern acl_block *acl_read(uschar *(*)(void), uschar **);
103 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
104 extern uschar *acl_current_verb(void);
105 extern int acl_eval(int, uschar *, uschar **, uschar **);
106 extern uschar *acl_standalone_setvar(const uschar *);
108 extern tree_node *acl_var_create(uschar *);
109 extern void acl_var_write(uschar *, uschar *, void *);
111 #ifdef EXPERIMENTAL_ARC
112 extern void *arc_ams_setup_sign_bodyhash(void);
113 extern const uschar *arc_header_feed(gstring *, BOOL);
114 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
115 extern void arc_sign_init(void);
116 extern const uschar *acl_verify_arc(void);
117 extern uschar * fn_arc_domains(void);
120 extern void assert_no_variables(void *, int, const char *, int);
121 extern int auth_call_pam(const uschar *, uschar **);
122 extern int auth_call_pwcheck(uschar *, uschar **);
123 extern int auth_call_radius(const uschar *, uschar **);
124 extern int auth_call_saslauthd(const uschar *, const uschar *,
125 const uschar *, const uschar *, uschar **);
126 extern int auth_check_serv_cond(auth_instance *);
127 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
128 extern int auth_client_item(void *, auth_instance *, const uschar **,
129 unsigned, int, uschar *, int);
132 extern int auth_get_data(uschar **, const uschar *, int);
133 extern int auth_get_no64_data(uschar **, uschar *);
134 extern int auth_prompt(const uschar *);
135 extern int auth_read_input(const uschar *);
136 extern gstring * auth_show_supported(gstring *);
137 extern uschar *auth_xtextencode(uschar *, int);
138 extern int auth_xtextdecode(uschar *, uschar **);
139 extern uschar *authenticator_current_name(void);
141 #ifdef EXPERIMENTAL_ARC
142 extern gstring *authres_arc(gstring *);
145 extern gstring *authres_dkim(gstring *);
148 extern gstring *authres_dmarc(gstring *);
150 extern gstring *authres_smtpauth(gstring *);
152 extern gstring *authres_spf(gstring *);
155 extern uschar *b64encode(const uschar *, int);
156 extern uschar *b64encode_taint(const uschar *, int, const void *);
157 extern int b64decode(const uschar *, uschar **);
158 extern int bdat_getc(unsigned);
159 extern uschar *bdat_getbuf(unsigned *);
160 extern BOOL bdat_hasc(void);
161 extern int bdat_ungetc(int);
162 extern void bdat_flush_data(void);
164 extern void bits_clear(unsigned int *, size_t, int *);
165 extern void bits_set(unsigned int *, size_t, int *);
167 extern void cancel_cutthrough_connection(BOOL, const uschar *);
168 extern gstring *cat_file(FILE *, gstring *, uschar *);
169 extern gstring *cat_file_tls(void *, gstring *, uschar *);
170 extern int check_host(void *, const uschar *, const uschar **, uschar **);
171 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
172 extern pid_t child_open_exim_function(int *, const uschar *);
173 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
175 extern pid_t child_open_function(uschar **, uschar **, int,
176 int *, int *, BOOL, const uschar *);
177 extern pid_t child_open_uid(const uschar **, const uschar **, int,
178 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
179 extern BOOL cleanup_environment(void);
180 extern void cutthrough_data_puts(uschar *, int);
181 extern void cutthrough_data_put_nl(void);
182 extern uschar *cutthrough_finaldot(void);
183 extern BOOL cutthrough_flush_send(void);
184 extern BOOL cutthrough_headers_send(void);
185 extern BOOL cutthrough_predata(void);
186 extern void release_cutthrough_connection(const uschar *);
188 extern void daemon_go(void);
189 #ifndef COMPILE_UTILITY
190 extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
191 extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
194 #ifdef EXPERIMENTAL_DCC
195 extern int dcc_process(uschar **);
198 extern void debug_logging_activate(const uschar *, const uschar *);
199 extern void debug_logging_from_spool(const uschar *);
200 extern void debug_logging_stop(BOOL);
201 extern void debug_print_argv(const uschar **);
202 extern void debug_print_ids(uschar *);
203 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
204 extern void debug_print_string(uschar *);
205 extern void debug_print_tree(const char *, tree_node *);
206 extern void debug_vprintf(int, const char *, va_list);
207 extern void debug_pretrigger_setup(const uschar *);
208 extern void debug_pretrigger_discard(void);
209 extern void debug_print_socket(int);
210 extern void debug_trigger_fire(void);
212 extern void decode_bits(unsigned int *, size_t, int *,
213 const uschar *, bit_table *, int, uschar *, int);
214 extern void delete_pid_file(void);
215 extern void deliver_local(address_item *, BOOL);
216 extern address_item *deliver_make_addr(uschar *, BOOL);
217 extern void delivery_log(int, address_item *, int, uschar *);
218 extern int deliver_message(uschar *, BOOL, BOOL);
219 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
220 extern void deliver_set_expansions(address_item *);
221 extern int deliver_split_address(address_item *);
222 extern void deliver_succeeded(address_item *);
224 extern void delivery_re_exec(int);
226 extern void die_tainted(const uschar *, const uschar *, int);
227 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
229 extern uschar *dkim_exim_query_dns_txt(const uschar *);
230 extern void dkim_exim_sign_init(void);
232 extern BOOL dkim_transport_write_message(transport_ctx *,
233 struct ob_dkim *, const uschar ** errstr);
235 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
236 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
237 extern uschar *dns_build_reverse(const uschar *);
238 extern time_t dns_expire_from_soa(dns_answer *, int);
239 extern void dns_init(BOOL, BOOL, BOOL);
240 extern BOOL dns_is_aa(const dns_answer *);
241 extern BOOL dns_is_secure(const dns_answer *);
242 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
243 extern void dns_pattern_init(void);
244 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
245 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
246 extern uschar *dns_text_type(int);
247 extern void dscp_list_to_stream(FILE *);
248 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
250 extern void enq_end(uschar *);
251 extern BOOL enq_start(uschar *, unsigned);
252 #ifndef DISABLE_EVENT
253 extern uschar *event_raise(uschar *, const uschar *, uschar *, int *);
254 extern void msg_event_raise(const uschar *, const address_item *);
257 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
258 extern const uschar * exim_errstr(int);
259 extern void exim_exit(int) NORETURN;
260 extern void exim_gettime(struct timeval *);
261 extern void exim_nullstd(void);
262 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
263 extern void exim_underbar_exit(int) NORETURN;
264 extern void exim_wait_tick(struct timeval *, int);
265 extern int exp_bool(address_item *addr,
266 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
267 uschar *svalue, BOOL *rvalue);
268 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
269 extern uschar *expand_file_big_buffer(const uschar *);
270 extern uschar *expand_string(uschar *); /* public, cannot make const */
271 extern const uschar *expand_string_2(const uschar *, BOOL *);
272 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
273 extern uschar *expand_getkeyed(const uschar *, const uschar *);
275 extern uschar *expand_hide_passwords(uschar * );
276 extern uschar *expand_string_copy(const uschar *);
277 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
278 extern void modify_variable(uschar *, void *);
280 extern BOOL fd_ready(int, time_t);
282 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
283 extern BOOL filter_personal(string_item *, BOOL);
284 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
285 extern BOOL filter_system_interpret(address_item **, uschar **);
287 extern uschar * fn_hdrs_added(void);
288 extern void force_fd(int, int);
290 extern void header_add(int, const char *, ...);
291 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
292 extern int header_checkname(header_line *, BOOL);
293 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
294 extern int host_address_extract_port(uschar *);
295 extern uschar *host_and_ident(BOOL);
296 extern int host_aton(const uschar *, int *);
297 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
298 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
299 extern void host_build_log_info(void);
300 extern void host_build_sender_fullhost(void);
301 extern int host_find_byname(host_item *, const uschar *, int,
302 const uschar **, BOOL);
303 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
304 uschar *, const dnssec_domains *, const uschar **, BOOL *);
305 extern ip_address_item *host_find_interfaces(void);
306 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
307 extern BOOL host_is_tls_on_connect_port(int);
308 extern int host_item_get_port(host_item *);
309 extern void host_mask(int, int *, int);
310 extern int host_name_lookup(void);
311 extern int host_nmtoa(int, int *, int, uschar *, int);
312 extern uschar *host_ntoa(int, const void *, uschar *, int *);
313 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
315 extern uschar *imap_utf7_encode(uschar *, const uschar *,
316 uschar, uschar *, uschar **);
318 extern void invert_address(uschar *, uschar *);
319 extern int ip_addr(void *, int, const uschar *, int);
320 extern int ip_bind(int, int, uschar *, int);
321 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
322 extern int ip_connectedsocket(int, const uschar *, int, int,
323 int, host_item *, uschar **, const blob *);
324 extern int ip_get_address_family(int);
325 extern void ip_keepalive(int, const uschar *, BOOL);
326 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
327 extern int ip_socket(int, int);
329 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
330 extern int ip_unixsocket(const uschar *, uschar **);
331 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
333 extern int ipv6_nmtoa(int *, uschar *);
335 extern uschar *local_part_quote(uschar *);
336 extern int log_open_as_exim(const uschar * const);
337 extern void log_close_all(void);
339 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
340 extern BOOL macro_read_assignment(uschar *);
341 extern uschar *macros_expand(int, int *, BOOL *);
342 extern void mainlog_close(void);
343 #ifdef WITH_CONTENT_SCAN
344 extern int malware(const uschar *, BOOL, int);
345 extern int malware_in_file(uschar *);
346 extern void malware_init(void);
347 extern gstring * malware_show_supported(gstring *);
349 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
350 unsigned int *, int, int, const uschar **);
351 extern int match_address_list_basic(const uschar *, const uschar **, int);
352 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
353 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
354 const uschar *, const uschar **);
355 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
356 unsigned int *, int, BOOL, const uschar **);
357 extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
360 extern void message_start(void);
361 extern void message_tidyup(void);
362 extern void md5_end(md5 *, const uschar *, int, uschar *);
363 extern void md5_mid(md5 *, const uschar *);
364 extern void md5_start(md5 *);
365 extern void millisleep(int);
366 #ifdef WITH_CONTENT_SCAN
367 struct mime_boundary_context;
368 extern int mime_acl_check(uschar *acl, FILE *f,
369 struct mime_boundary_context *, uschar **, uschar **);
370 extern int mime_decode(const uschar **);
371 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
372 extern int mime_regex(const uschar **, BOOL);
373 extern void mime_set_anomaly(int);
375 extern uschar *moan_check_errorcopy(uschar *);
376 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
378 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
379 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
380 header_line *, FILE *, uschar *);
381 extern void moan_tell_someone(uschar *, address_item *,
382 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
383 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
384 extern void moan_write_from(FILE *);
385 extern void moan_write_references(FILE *, uschar *);
386 extern FILE *modefopen(const uschar *, const char *, mode_t);
388 extern int open_cutthrough_connection( address_item * addr );
390 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
392 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
393 const uschar *, const uschar *, error_block **);
394 extern uschar *parse_find_address_end(const uschar *, BOOL);
395 extern const uschar *parse_find_at(const uschar *);
396 extern const uschar *parse_fix_phrase(const uschar *, int);
397 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
398 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
400 extern const uschar *parse_date_time(const uschar *str, time_t *t);
401 extern void priv_drop_temp(const uid_t, const gid_t);
402 extern void priv_restore(void);
404 extern BOOL proxy_protocol_host(void);
405 extern void proxy_protocol_setup(void);
408 extern BOOL queue_action(uschar *, int, uschar **, int, int);
409 extern void queue_check_only(void);
410 extern unsigned queue_count(void);
411 extern unsigned queue_count_cached(void);
412 extern void queue_list(int, uschar **, int);
413 #ifndef DISABLE_QUEUE_RAMP
414 extern void queue_notify_daemon(const uschar * hostname);
416 extern void queue_run(qrunner *, uschar *, uschar *, BOOL);
418 extern int random_number(int);
419 extern const uschar *rc_to_string(int);
420 extern int rda_interpret(redirect_block *, int, const uschar *, const uschar *,
421 const uschar *, const uschar *, const uschar *, const ugid_block *, address_item **,
422 uschar **, error_block **, int *, const uschar *);
423 extern int rda_is_filter(const uschar *);
424 extern BOOL readconf_depends(driver_instance *, uschar *);
425 extern void readconf_driver_init(uschar *, driver_instance **,
426 driver_info *, int, void *, int, optionlist *, int);
427 extern uschar *readconf_find_option(void *);
428 extern void readconf_main(BOOL);
429 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
430 extern BOOL readconf_print(const uschar *, uschar *, BOOL);
431 extern uschar *readconf_printtime(int);
432 extern const uschar *readconf_readname(uschar *, int, const uschar *);
433 extern int readconf_readtime(const uschar *, int, BOOL);
434 extern void readconf_rest(void);
435 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
436 extern void readconf_save_config(const uschar *);
437 extern void read_message_body(BOOL);
438 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
439 extern BOOL receive_check_fs(int);
440 extern BOOL receive_check_set_sender(uschar *);
441 extern BOOL receive_msg(BOOL);
442 extern int_eximarith_t receive_statvfs(BOOL, int *);
443 extern void receive_swallow_smtp(void);
444 #ifdef WITH_CONTENT_SCAN
445 extern int regex(const uschar **, BOOL);
446 extern void regex_vars_clear(void);
448 extern void regex_at_daemon(const uschar *);
449 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
450 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
451 extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
452 pcre2_compile_context *);
453 extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
454 extern void retry_add_item(address_item *, uschar *, int);
455 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
456 uschar **, uschar **);
457 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
458 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
459 dbdata_retry *, time_t);
460 extern void retry_update(address_item **, address_item **, address_item **);
461 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
462 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
463 extern header_line *rewrite_header(header_line *,
464 const uschar *, const uschar *,
465 rewrite_rule *, int, BOOL);
466 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
468 extern void rewrite_test(const uschar *);
469 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
471 extern int route_address(address_item *, address_item **, address_item **,
472 address_item **, address_item **, int);
473 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
474 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
475 extern BOOL route_findgroup(uschar *, gid_t *);
476 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
477 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
479 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
480 struct passwd **, uid_t *, uschar **);
481 extern void route_init(void);
482 extern gstring * route_show_supported(gstring *);
483 extern void route_tidyup(void);
484 extern uschar *router_current_name(void);
486 extern uschar *search_args(int, uschar *, uschar *, uschar **, const uschar *);
487 extern uschar *search_find(void *, const uschar *, uschar *, int,
488 const uschar *, int, int, int *, const uschar *);
489 extern int search_findtype(const uschar *, int);
490 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
491 int *, const uschar **);
492 extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
493 extern void search_tidyup(void);
494 extern uschar *sender_helo_verified_boolstr(void);
495 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
496 extern void sha1_end(hctx *, const uschar *, int, uschar *);
497 extern void sha1_mid(hctx *, const uschar *);
498 extern void sha1_start(hctx *);
499 extern int sieve_interpret(const uschar *, int, const uschar *,
500 const uschar *, const uschar *, const uschar *,
501 address_item **, uschar **);
502 extern void sigalrm_handler(int);
503 extern void single_queue_run(qrunner *, uschar *, uschar *);
504 extern int smtp_boundsock(smtp_connect_args *);
505 extern void smtp_closedown(uschar *);
506 extern void smtp_command_timeout_exit(void) NORETURN;
507 extern void smtp_command_sigterm_exit(void) NORETURN;
508 extern void smtp_data_timeout_exit(void) NORETURN;
509 extern void smtp_data_sigint_exit(void) NORETURN;
510 extern void smtp_deliver_init(void);
511 extern uschar *smtp_cmd_hist(void);
512 extern int smtp_connect(smtp_connect_args *, const blob *);
513 extern int smtp_feof(void);
514 extern int smtp_ferror(void);
515 extern uschar *smtp_get_connection_info(void);
516 extern BOOL smtp_get_interface(uschar *, int, address_item *,
517 uschar **, uschar *);
518 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
519 extern int smtp_getc(unsigned);
520 extern uschar *smtp_getbuf(unsigned *);
521 extern void smtp_get_cache(unsigned);
522 extern BOOL smtp_hasc(void);
523 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
524 extern void smtp_log_no_mail(void);
525 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
526 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
527 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
528 extern void *smtp_reset(void *);
529 extern void smtp_respond(uschar *, int, BOOL, uschar *);
530 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
531 extern void smtp_port_for_connect(host_item *, int);
532 extern void smtp_send_prohibition_message(int, uschar *);
533 extern int smtp_setup_msg(void);
534 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
535 extern BOOL smtp_start_session(void);
536 extern int smtp_ungetc(int);
537 extern BOOL smtp_verify_helo(void);
538 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
539 #ifdef WITH_CONTENT_SCAN
540 extern int spam(const uschar **);
541 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
543 extern void spool_clear_header_globals(void);
544 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
545 extern int spool_open_datafile(uschar *);
546 extern int spool_open_temp(uschar *);
547 extern int spool_read_header(uschar *, BOOL, BOOL);
548 extern uschar *spool_sender_from_msgid(const uschar *);
549 extern int spool_write_header(uschar *, int, uschar **);
550 extern int stdin_getc(unsigned);
551 extern int stdin_feof(void);
552 extern int stdin_ferror(void);
553 extern BOOL stdin_hasc(void);
554 extern int stdin_ungetc(int);
556 extern void stackdump(void);
557 extern void store_exit(void);
558 extern void store_init(void);
559 extern void store_writeprotect(int);
561 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
562 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
563 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
564 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
565 extern uschar *string_base62(unsigned long int);
566 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
567 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
568 extern int string_compare_by_pointer(const void *, const void *);
569 extern uschar *string_copy_dnsdomain(uschar *);
570 extern uschar *string_copy_malloc(const uschar *);
571 extern uschar *string_dequote(const uschar **);
572 extern uschar *string_format_size(int, uschar *);
573 extern int string_interpret_escape(const uschar **);
574 extern int string_is_ip_address(const uschar *, int *);
576 extern BOOL string_is_utf8(const uschar *);
578 extern const uschar *string_printing2(const uschar *, int);
579 extern uschar *string_split_message(uschar *);
580 extern uschar *string_unprinting(uschar *);
582 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
583 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
584 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
585 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
586 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
589 #define string_format(buf, siz, fmt, ...) \
590 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
591 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
592 const char *, ...) ALMOST_PRINTF(5,6);
594 #define string_vformat(g, flgs, fmt, ap) \
595 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
596 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
597 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
598 unsigned, unsigned, const char *, va_list);
600 #define string_open_failed(fmt, ...) \
601 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
602 extern uschar *string_open_failed_trc(const uschar *, unsigned,
603 const char *, ...) PRINTF_FUNCTION(3,4);
605 #define string_nextinlist(lp, sp, b, l) \
606 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
607 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
608 const uschar * func, int line);
610 extern int strcmpic(const uschar *, const uschar *);
611 extern int strncmpic(const uschar *, const uschar *, int);
612 extern uschar *strstric(uschar *, uschar *, BOOL);
613 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
615 extern int test_harness_fudged_queue_time(int);
616 extern void tcp_init(void);
617 #ifdef EXIM_TFO_PROBE
618 extern void tfo_probe(void);
620 extern void tls_modify_variables(tls_support *);
621 extern uschar *tod_stamp(int);
623 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
625 extern uschar *transport_current_name(void);
626 extern void transport_do_pass_socket(const uschar *, const uschar *,
627 const uschar *, uschar *, int);
628 extern void transport_init(void);
629 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *, int
630 #ifdef EXPERIMENTAL_ESMTP_LIMITS
631 , unsigned, unsigned, unsigned
634 extern uschar *transport_rcpt_address(address_item *, BOOL);
635 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
636 BOOL, int, address_item *, BOOL, const uschar *, uschar **);
637 extern void transport_update_waiting(host_item *, uschar *);
638 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
639 extern void transport_write_reset(int);
640 extern BOOL transport_write_string(int, const char *, ...);
641 extern BOOL transport_headers_send(transport_ctx *,
642 BOOL (*)(transport_ctx *, uschar *, int));
643 extern gstring * transport_show_supported(gstring *);
644 extern BOOL transport_write_message(transport_ctx *, int);
645 extern void tree_add_duplicate(const uschar *, address_item *);
646 extern void tree_add_nonrecipient(const uschar *);
647 extern void tree_add_unusable(const host_item *);
648 extern void tree_dup(tree_node **, tree_node *);
649 extern int tree_insertnode(tree_node **, tree_node *);
650 extern tree_node *tree_search(tree_node *, const uschar *);
651 extern void tree_write(tree_node *, FILE *);
652 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
654 #ifdef WITH_CONTENT_SCAN
655 extern void unspool_mbox(void);
658 extern gstring *utf8_version_report(gstring *);
661 extern int vaguely_random_number(int);
663 extern int vaguely_random_number_fallback(int);
665 extern int verify_address(address_item *, FILE *, int, int, int, int,
666 uschar *, uschar *, BOOL *);
667 extern int verify_check_dnsbl(int, const uschar **, uschar **);
668 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
669 uschar *, uschar *, int, int *);
670 extern int verify_check_headers(uschar **);
671 extern int verify_check_header_names_ascii(uschar **);
672 extern int verify_check_host(uschar **);
673 extern int verify_check_notblind(BOOL);
674 extern int verify_check_given_host(const uschar **, const host_item *);
675 extern int verify_check_this_host(const uschar **, unsigned int *,
676 const uschar*, const uschar *, const uschar **);
677 extern address_item *verify_checked_sender(uschar *);
678 extern void verify_get_ident(int);
679 extern void verify_quota(uschar *);
680 extern int verify_quota_call(const uschar *, int, int, uschar **);
681 extern BOOL verify_sender(int *, uschar **);
682 extern BOOL verify_sender_preliminary(int *, uschar **);
683 extern void version_init(void);
685 extern BOOL write_chunk(transport_ctx *, uschar *, int);
686 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
687 extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
689 #ifdef EXPERIMENTAL_XCLIENT
690 extern uschar * xclient_smtp_command(uschar *, int *, BOOL *);
691 extern gstring * xclient_smtp_advertise_str(gstring *);
695 /******************************************************************************/
696 /* Predicate: if an address is in a tainted pool.
697 By extension, a variable pointing to this address is tainted.
701 is_tainted(const void * p)
703 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
707 extern BOOL is_tainted_fn(const void *);
708 return is_tainted_fn(p);
713 is_incompatible(const void * old, const void * new)
715 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
719 extern BOOL is_incompatible_fn(const void *, const void *);
720 return is_incompatible_fn(old, new);
724 /******************************************************************************/
725 /* String functions */
726 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
728 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
729 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
731 return US strcat(CS dst, CCS src);
733 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
735 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
736 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
738 return US strcpy(CS dst, CCS src);
740 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
742 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
743 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
745 return US strncat(CS dst, CCS src, n);
747 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
749 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
750 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
752 return US strncpy(CS dst, CCS src, n);
754 /*XXX will likely need unchecked copy also */
757 /* Advance the string pointer given over any whitespace.
758 Return the next char as there's enought places using it to be useful. */
760 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
762 static inline uschar skip_whitespace(const uschar ** sp)
763 { while (isspace(**sp)) (*sp)++; return **sp; }
766 /******************************************************************************/
768 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
769 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
770 chown(<exim-uid>, <exim-gid>).
772 Probably because the idmapping is broken, misconfigured or set up in
773 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
774 case of misconfiguration, or if there are more such broken systems
775 out, I try to impose as least impact as possible and for now just write
776 a panic log entry pointing to the bug report. You're encouraged to
777 contact the developers, if you experience this issue.
779 fd the file descriptor (or -1 if not valid)
780 name the file name for error messages or for file operations,
785 returns 0 on success, -1 on failure */
788 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
790 return fchown(fd, owner, group)
791 ? exim_chown_failure(fd, name, owner, group) : 0;
795 exim_chown(const uschar *name, uid_t owner, gid_t group)
797 return chown(CCS name, owner, group)
798 ? exim_chown_failure(-1, name, owner, group) : 0;
800 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
802 /******************************************************************************/
803 /* String functions */
805 #if !defined(MACRO_PREDEF)
806 /*************************************************
807 * Copy and save string *
808 *************************************************/
810 /* This function assumes that memcpy() is faster than strcpy().
811 The result is explicitly nul-terminated.
814 static inline uschar *
815 string_copyn_taint_trc(const uschar * s, unsigned len,
816 const void * proto_mem, const char * func, int line)
819 unsigned slen = Ustrlen(s);
820 if (len > slen) len = slen;
821 ss = store_get_3(len + 1, proto_mem, func, line);
827 static inline uschar *
828 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
829 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
831 static inline uschar *
832 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
833 { return string_copyn_taint_trc(s, len, s, func, line); }
834 static inline uschar *
835 string_copy_trc(const uschar * s, const char * func, int line)
836 { return string_copy_taint_trc(s, s, func, line); }
839 /* String-copy functions explicitly setting the taint status */
841 #define string_copyn_taint(s, len, proto_mem) \
842 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
843 #define string_copy_taint(s, proto_mem) \
844 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
846 /* Simple string-copy functions maintaining the taint */
848 #define string_copyn(s, len) \
849 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
850 #define string_copy(s) \
851 string_copy_trc((s), __FUNCTION__, __LINE__)
854 /*************************************************
855 * Copy, lowercase and save string *
856 *************************************************/
859 Argument: string to copy
860 Returns: copy of string in new store, with letters lowercased
863 static inline uschar *
864 string_copylc(const uschar * s)
866 uschar * ss = store_get(Ustrlen(s) + 1, s);
868 while (*s) *p++ = tolower(*s++);
875 /*************************************************
876 * Copy, lowercase, and save string, given length *
877 *************************************************/
879 /* It is assumed the data contains no zeros. A zero is added
884 n number of characters
886 Returns: copy of string in new store, with letters lowercased
889 static inline uschar *
890 string_copynlc(uschar * s, int n)
892 uschar * ss = store_get(n + 1, s);
894 while (n-- > 0) *p++ = tolower(*s++);
900 # ifndef COMPILE_UTILITY
901 /*************************************************
902 * Copy and save string in longterm store *
903 *************************************************/
905 /* This function assumes that memcpy() is faster than strcpy().
907 Argument: string to copy
908 Returns: copy of string in new store
911 static inline uschar *
912 string_copy_perm(const uschar *s, BOOL force_taint)
914 int old_pool = store_pool;
915 int len = Ustrlen(s) + 1;
918 store_pool = POOL_PERM;
919 ss = store_get(len, force_taint ? GET_TAINTED : s);
921 store_pool = old_pool;
928 /* sprintf into a buffer, taint-unchecked */
931 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
933 gstring gs = { .size = siz, .ptr = 0, .s = buf };
936 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
942 /******************************************************************************/
943 /* Growable-string functions */
945 /* Create a growable-string with some preassigned space */
947 #define string_get_tainted(size, proto_mem) \
948 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
950 static inline gstring *
951 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
953 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
954 g->size = size; /*XXX would be good if we could see the actual alloc size */
960 #define string_get(size) \
961 string_get_trc((size), __FUNCTION__, __LINE__)
963 static inline gstring *
964 string_get_trc(unsigned size, const char * func, unsigned line)
966 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
969 /* NUL-terminate the C string in the growable-string, and return it. */
971 static inline uschar *
972 string_from_gstring(gstring * g)
980 len_string_from_gstring(gstring * g, uschar ** sp)
995 static inline uschar *
996 string_copy_from_gstring(gstring * g)
998 return g ? string_copyn(g->s, g->ptr) : NULL;
1001 static inline unsigned
1002 gstring_length(const gstring * g)
1004 return g ? (unsigned)g->ptr : 0;
1007 static inline uschar
1008 gstring_last_char(gstring * g)
1010 return g->s[g->ptr-1];
1014 gstring_trim(gstring * g, unsigned amount)
1020 gstring_trim_trailing(gstring * g, uschar c)
1022 if (gstring_last_char(g) == c) gstring_trim(g, 1);
1026 gstring_reset(gstring * g)
1032 #define gstring_release_unused(g) \
1033 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
1036 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
1038 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
1042 /* sprintf-append to a growable-string */
1044 #define string_fmt_append(g, fmt, ...) \
1045 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1046 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
1048 #define string_fmt_append_f(g, flgs, fmt, ...) \
1049 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1050 flgs, fmt, __VA_ARGS__)
1052 static inline gstring *
1053 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
1054 unsigned flags, const char *format, ...)
1057 va_start(ap, format);
1058 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
1065 /* Copy the content of a string to tainted memory. The proto_mem arg
1066 will always be tainted, and suitable as a prototype. */
1069 gstring_rebuffer(gstring * g, const void * proto_mem)
1071 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1072 memcpy(s, g->s, g->ptr);
1076 /* Append one gstring to another */
1077 static inline gstring *
1078 gstring_append(gstring * dest, gstring * item)
1080 return string_catn(dest, item->s, item->ptr);
1084 # ifndef COMPILE_UTILITY
1085 /******************************************************************************/
1086 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1087 for them as the strings we proceed to copy from them meant they could not be
1088 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1089 we do have to take care over marking tainted all copied strings. A separate pool
1090 could be used and would handle that implicitly. */
1092 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1094 static inline dns_answer *
1095 store_get_dns_answer_trc(const uschar * func, unsigned line)
1097 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1100 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1103 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1105 store_free_3(dnsa, CCS func, line);
1108 /******************************************************************************/
1109 /* Routines with knowledge of spool layout */
1112 spool_pname_buf(uschar * buf, int len)
1114 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1117 static inline uschar *
1118 spool_dname(const uschar * purpose, uschar * subdir)
1120 return string_sprintf("%s/%s/%s/%s",
1121 spool_directory, queue_name, purpose, subdir);
1125 static inline uschar *
1126 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
1128 return string_sprintf("%s%s%s%s%s",
1131 *subdir ? "/" : "", subdir);
1134 static inline uschar *
1135 spool_sname(const uschar * purpose, uschar * subdir)
1137 return spool_q_sname(purpose, queue_name, subdir);
1140 static inline uschar *
1141 spool_q_fname(const uschar * purpose, const uschar * q,
1142 const uschar * subdir, const uschar * fname, const uschar * suffix)
1144 return string_sprintf("%s/%s/%s/%s/%s%s",
1145 spool_directory, q, purpose, subdir, fname, suffix);
1148 static inline uschar *
1149 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1150 const uschar * suffix)
1152 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1153 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1154 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1155 uschar * buf = store_get(len, GET_UNTAINTED);
1156 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1157 spool_directory, queue_name, purpose, subdir, fname, suffix);
1160 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1165 set_subdir_str(uschar * subdir_str, const uschar * name,
1166 int search_sequence)
1168 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1170 subdir_str[1] = '\0';
1173 /******************************************************************************/
1174 /* Time calculations */
1176 /* Diff two times (later, earlier) returning diff in 1st arg */
1178 timediff(struct timeval * later, const struct timeval * earlier)
1180 later->tv_sec -= earlier->tv_sec;
1181 if ((later->tv_usec -= earlier->tv_usec) < 0)
1184 later->tv_usec += 1000*1000;
1189 timesince(struct timeval * diff, const struct timeval * then)
1191 gettimeofday(diff, NULL);
1192 timediff(diff, then);
1195 static inline uschar *
1196 string_timediff(const struct timeval * diff)
1198 static uschar buf[sizeof("0.000s")];
1200 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1201 return readconf_printtime((int)diff->tv_sec);
1203 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1208 static inline uschar *
1209 string_timesince(const struct timeval * then)
1211 struct timeval diff;
1212 timesince(&diff, then);
1213 return string_timediff(&diff);
1217 report_time_since(const struct timeval * t0, const uschar * where)
1219 # ifdef MEASURE_TIMING
1220 struct timeval diff;
1221 timesince(&diff, t0);
1222 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1223 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1229 testharness_pause_ms(int millisec)
1231 #ifndef MEASURE_TIMING
1232 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1236 /******************************************************************************/
1237 /* Taint-checked file opens */
1240 exim_open2(const char *pathname, int flags)
1242 if (!is_tainted(pathname)) return open(pathname, flags);
1243 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1248 exim_open(const char *pathname, int flags, mode_t mode)
1250 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1251 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1255 #ifdef EXIM_HAVE_OPENAT
1257 exim_openat(int dirfd, const char *pathname, int flags)
1259 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1260 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1265 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1267 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1268 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1274 static inline FILE *
1275 exim_fopen(const char *pathname, const char *mode)
1277 if (!is_tainted(pathname)) return fopen(pathname, mode);
1278 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1284 exim_opendir(const uschar * name)
1286 if (!is_tainted(name)) return opendir(CCS name);
1287 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1292 /******************************************************************************/
1293 # if !defined(COMPILE_UTILITY)
1294 /* Process manipulation */
1297 exim_fork(const unsigned char * purpose)
1300 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1301 if ((pid = fork()) == 0)
1303 f.daemon_listen = FALSE;
1304 process_purpose = purpose;
1305 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1309 testharness_pause_ms(100); /* let child work */
1310 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1317 child_open_exim(int * fdptr, const uschar * purpose)
1318 { return child_open_exim_function(fdptr, purpose); }
1321 child_open_exim2(int * fdptr, uschar * sender,
1322 uschar * sender_auth, const uschar * purpose)
1323 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1326 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1327 int *outfdptr, BOOL make_leader, const uschar * purpose)
1328 { return child_open_function(argv, envp, newumask, infdptr,
1329 outfdptr, make_leader, purpose);
1332 /* Return 1 if fd is usable per pollbits, else 0 */
1334 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1336 struct pollfd p = {.fd = fd, .events = pollbits};
1337 return poll(&p, 1, tmo_millisec);
1340 /******************************************************************************/
1341 /* Client-side smtp log string, for debug */
1344 smtp_debug_cmd(const uschar * buf, int mode)
1346 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1347 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1349 # ifndef DISABLE_CLIENT_CMD_LOG
1351 int len = Ustrcspn(buf, " \n");
1352 int old_pool = store_pool;
1353 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1354 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1355 if (mode == SCMD_BUFFER)
1357 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1358 (void) string_from_gstring(client_cmd_log);
1360 store_pool = old_pool;
1367 smtp_debug_cmd_report(void)
1369 # ifndef DISABLE_CLIENT_CMD_LOG
1370 debug_printf("cmdlog: '%s'\n", client_cmd_log ? client_cmd_log->s : US"(unset)");
1377 expand_max_rcpt(const uschar * str_max_rcpt)
1379 const uschar * s = expand_cstring(str_max_rcpt);
1381 return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
1384 /******************************************************************************/
1385 /* Queue-runner operations */
1388 is_onetime_qrun(void)
1390 return qrunners && !qrunners->next && qrunners->interval == 0;
1394 is_multiple_qrun(void)
1396 return qrunners && (qrunners->interval > 0 || qrunners->next);
1400 # endif /* !COMPILE_UTILITY */
1402 /******************************************************************************/
1403 #endif /* !MACRO_PREDEF */
1405 #endif /* _FUNCTIONS_H_ */
1409 /* End of functions.h */