1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) The Exim Maintainers 2020 - 2024 */
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, const 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 *, BOOL);
108 extern tree_node *acl_var_create(uschar *);
109 extern void acl_var_write(uschar *, uschar *, void *);
110 extern void add_driver_info(driver_info **, const driver_info *, size_t);
113 #ifdef EXPERIMENTAL_ARC
114 # ifdef SUPPORT_DMARC
115 extern gstring *arc_dmarc_hist_append(gstring *);
117 extern void *arc_ams_setup_sign_bodyhash(void);
118 extern const uschar *arc_header_feed(gstring *, BOOL);
119 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
120 extern void arc_sign_init(void);
121 extern const uschar *acl_verify_arc(void);
122 extern uschar * fn_arc_domains(void);
125 extern void assert_no_variables(void *, int, const char *, int);
126 extern int auth_call_pam(const uschar *, uschar **);
127 extern int auth_call_pwcheck(uschar *, uschar **);
128 extern int auth_call_radius(const uschar *, uschar **);
129 extern int auth_call_saslauthd(const uschar *, const uschar *,
130 const uschar *, const uschar *, uschar **);
131 extern int auth_check_serv_cond(auth_instance *);
132 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
133 extern int auth_client_item(void *, auth_instance *, const uschar **,
134 unsigned, int, uschar *, int);
137 extern int auth_get_data(uschar **, const uschar *, int);
138 extern int auth_get_no64_data(uschar **, uschar *);
139 extern int auth_prompt(const uschar *);
140 extern int auth_read_input(const uschar *);
141 extern gstring * auth_show_supported(gstring *);
142 extern uschar *authenticator_current_name(void);
144 #ifdef EXPERIMENTAL_ARC
145 extern gstring *authres_arc(gstring *);
148 extern gstring *authres_dkim(gstring *);
151 extern gstring *authres_dmarc(gstring *);
153 extern gstring *authres_smtpauth(gstring *);
155 extern gstring *authres_spf(gstring *);
158 extern uschar *b64encode(const uschar *, int);
159 extern uschar *b64encode_taint(const uschar *, int, const void *);
160 extern int b64decode(const uschar *, uschar **, const void *);
161 extern int bdat_getc(unsigned);
162 extern uschar *bdat_getbuf(unsigned *);
163 extern BOOL bdat_hasc(void);
164 extern int bdat_ungetc(int);
165 extern void bdat_flush_data(void);
167 extern void bits_clear(unsigned int *, size_t, int *);
168 extern void bits_set(unsigned int *, size_t, int *);
170 extern void cancel_cutthrough_connection(BOOL, const uschar *);
171 extern gstring *cat_file(FILE *, gstring *, uschar *);
172 extern gstring *cat_file_tls(void *, gstring *, uschar *);
173 extern int check_host(void *, const uschar *, const uschar **, uschar **);
174 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
175 extern pid_t child_open_exim_function(int *, const uschar *);
176 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
178 extern pid_t child_open_function(uschar **, uschar **, int,
179 int *, int *, BOOL, const uschar *);
180 extern pid_t child_open_uid(const uschar **, const uschar **, int,
181 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
182 extern BOOL cleanup_environment(void);
183 extern void cutthrough_data_puts(uschar *, int);
184 extern void cutthrough_data_put_nl(void);
185 extern uschar *cutthrough_finaldot(void);
186 extern BOOL cutthrough_flush_send(void);
187 extern BOOL cutthrough_headers_send(void);
188 extern BOOL cutthrough_predata(void);
189 extern void release_cutthrough_connection(const uschar *);
191 extern void daemon_go(void);
192 #ifndef COMPILE_UTILITY
193 extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
194 extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
197 #ifdef EXPERIMENTAL_DCC
198 extern int dcc_process(uschar **);
201 extern void debug_logging_activate(const uschar *, const uschar *);
202 extern void debug_logging_from_spool(const uschar *);
203 extern void debug_logging_stop(BOOL);
204 extern void debug_print_argv(const uschar **);
205 extern void debug_print_ids(uschar *);
206 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
207 extern void debug_print_string(uschar *);
208 extern void debug_print_tree(const char *, tree_node *);
209 extern void debug_vprintf(int, const char *, va_list);
210 extern void debug_pretrigger_setup(const uschar *);
211 extern void debug_pretrigger_discard(void);
212 extern void debug_print_socket(int);
213 extern void debug_trigger_fire(void);
215 extern void decode_bits(unsigned int *, size_t, int *,
216 const uschar *, bit_table *, int, uschar *, int);
217 extern void delete_pid_file(void);
218 extern void deliver_local(address_item *, BOOL);
219 extern address_item *deliver_make_addr(const uschar *, BOOL);
220 extern void delivery_log(int, address_item *, int, uschar *);
221 extern int deliver_message(const uschar *, BOOL, BOOL);
222 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
223 extern void deliver_set_expansions(address_item *);
224 extern int deliver_split_address(address_item *);
225 extern void deliver_succeeded(address_item *);
227 extern void delivery_re_exec(int);
229 extern void die_tainted(const uschar *, const uschar *, int);
230 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
232 extern uschar *dkim_exim_query_dns_txt(const uschar *);
233 extern void dkim_exim_sign_init(void);
235 extern BOOL dkim_transport_write_message(transport_ctx *,
236 struct ob_dkim *, const uschar ** errstr);
238 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
239 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
240 extern uschar *dns_build_reverse(const uschar *);
241 extern time_t dns_expire_from_soa(dns_answer *, int);
242 extern void dns_init(BOOL, BOOL, BOOL);
243 extern BOOL dns_is_aa(const dns_answer *);
244 extern BOOL dns_is_secure(const dns_answer *);
245 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
246 extern void dns_pattern_init(void);
247 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
248 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
249 extern uschar *dns_text_type(int);
250 extern void dscp_list_to_stream(FILE *);
251 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
253 extern void enq_end(uschar *);
254 extern BOOL enq_start(uschar *, unsigned);
255 #ifndef DISABLE_EVENT
256 extern uschar *event_raise(const uschar *, const uschar *, const uschar *, int *);
257 extern void msg_event_raise(const uschar *, const address_item *);
260 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
261 extern const uschar * exim_errstr(int);
262 extern void exim_exit(int) NORETURN;
263 extern void exim_gettime(struct timeval *);
264 extern void exim_nullstd(void);
265 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
266 extern void exim_underbar_exit(int) NORETURN;
267 extern void exim_wait_tick(struct timeval *, int);
268 extern int exp_bool(address_item *,
269 const uschar *, const uschar *, unsigned, uschar *, BOOL bvalue,
270 const uschar *, BOOL *);
271 extern BOOL expand_check_condition(const uschar *, const uschar *, const uschar *);
272 extern uschar *expand_file_big_buffer(const uschar *);
273 extern uschar *expand_string(uschar *); /* public, cannot make const */
274 extern const uschar *expand_string_2(const uschar *, BOOL *);
275 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
276 extern uschar *expand_getkeyed(const uschar *, const uschar *);
278 extern uschar *expand_hide_passwords(uschar * );
279 extern uschar *expand_string_copy(const uschar *);
280 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
281 extern void modify_variable(uschar *, void *);
283 extern BOOL fd_ready(int, time_t);
285 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
286 extern BOOL filter_personal(string_item *, BOOL);
287 extern BOOL filter_runtest(int, const uschar *, BOOL, BOOL);
288 extern BOOL filter_system_interpret(address_item **, uschar **);
290 extern uschar * fn_hdrs_added(void);
291 extern void force_fd(int, int);
293 extern void header_add(int, const char *, ...);
294 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
295 extern int header_checkname(header_line *, BOOL);
296 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
297 extern int host_address_extract_port(uschar *);
298 extern uschar *host_and_ident(BOOL);
299 extern int host_aton(const uschar *, int *);
300 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
301 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
302 extern void host_build_log_info(void);
303 extern void host_build_sender_fullhost(void);
304 extern int host_find_byname(host_item *, const uschar *, int,
305 const uschar **, BOOL);
306 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
307 uschar *, const dnssec_domains *, const uschar **, BOOL *);
308 extern ip_address_item *host_find_interfaces(void);
309 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
310 extern BOOL host_is_tls_on_connect_port(int);
311 extern int host_item_get_port(host_item *);
312 extern void host_mask(int, int *, int);
313 extern int host_name_lookup(void);
314 extern int host_nmtoa(int, const int *, int, uschar *, int);
315 extern uschar *host_ntoa(int, const void *, uschar *, int *);
316 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
318 extern uschar *imap_utf7_encode(uschar *, const uschar *,
319 uschar, uschar *, uschar **);
321 extern void invert_address(uschar *, uschar *);
322 extern int ip_addr(void *, int, const uschar *, int);
323 extern int ip_bind(int, int, uschar *, int);
324 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
325 extern int ip_connectedsocket(int, const uschar *, int, int,
326 int, host_item *, uschar **, const blob *);
327 extern int ip_get_address_family(int);
328 extern void ip_keepalive(int, const uschar *, BOOL);
329 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
330 extern int ip_socket(int, int);
332 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
333 extern int ip_unixsocket(const uschar *, uschar **);
334 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
336 extern int ipv6_nmtoa(int *, uschar *);
338 extern const uschar *local_part_quote(const uschar *);
339 extern int log_open_as_exim(const uschar * const);
340 extern void log_close_all(void);
341 extern const lookup_info * lookup_with_acq_num(unsigned);
344 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
345 extern BOOL macro_read_assignment(uschar *);
346 extern uschar *macros_expand(int, int *, BOOL *);
347 extern void mainlog_close(void);
348 #ifdef WITH_CONTENT_SCAN
349 extern int malware(const uschar *, BOOL, int);
350 extern int malware_in_file(const uschar *);
351 extern void malware_init(void);
352 extern gstring * malware_show_supported(gstring *);
354 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
355 unsigned int *, int, int, const uschar **);
356 extern int match_address_list_basic(const uschar *, const uschar **, int);
357 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
358 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
359 const uschar *, const uschar **);
360 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
361 unsigned int *, int, BOOL, const uschar **);
362 extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
365 extern void message_start(void);
366 extern void message_tidyup(void);
367 extern void md5_end(md5 *, const uschar *, int, uschar *);
368 extern void md5_mid(md5 *, const uschar *);
369 extern void md5_start(md5 *);
370 extern void millisleep(int);
371 #ifdef WITH_CONTENT_SCAN
372 struct mime_boundary_context;
373 extern int mime_acl_check(uschar *acl, FILE *f,
374 struct mime_boundary_context *, uschar **, uschar **);
375 extern int mime_decode(const uschar **);
376 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
377 extern int mime_regex(const uschar **, BOOL);
378 extern void mime_set_anomaly(int);
380 extern uschar *moan_check_errorcopy(const uschar *);
381 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
383 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
384 extern BOOL moan_send_message(const uschar *, int, error_block *eblock,
385 header_line *, FILE *, uschar *);
386 extern void moan_tell_someone(uschar *, address_item *,
387 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
388 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
389 extern void moan_write_from(FILE *);
390 extern void moan_write_references(FILE *, uschar *);
391 extern FILE *modefopen(const uschar *, const char *, mode_t);
393 extern int open_cutthrough_connection( address_item * addr );
395 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
397 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
398 const uschar *, const uschar *, error_block **);
399 extern uschar *parse_find_address_end(const uschar *, BOOL);
400 extern const uschar *parse_find_at(const uschar *);
401 extern const uschar *parse_fix_phrase(const uschar *, int);
402 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
403 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
405 extern const uschar *parse_date_time(const uschar *str, time_t *t);
406 extern void priv_drop_temp(const uid_t, const gid_t);
407 extern void priv_restore(void);
409 extern BOOL proxy_protocol_host(void);
410 extern void proxy_protocol_setup(void);
413 extern BOOL queue_action(const uschar *, int, const uschar **, int, int);
414 extern void queue_check_only(void);
415 extern unsigned queue_count(void);
416 extern unsigned queue_count_cached(void);
417 extern void queue_list(int, const uschar **, int);
418 #ifndef DISABLE_QUEUE_RAMP
419 extern void queue_notify_daemon(const uschar * hostname);
421 extern void queue_run(qrunner *, const uschar *, const uschar *, BOOL);
423 extern int random_number(int);
424 extern const uschar *rc_to_string(int);
425 extern int rda_interpret(redirect_block *, int, const uschar *,
426 const sieve_block *, const ugid_block *, address_item **,
427 uschar **, error_block **, int *, const uschar *);
428 extern int rda_is_filter(const uschar *);
429 extern BOOL readconf_depends(driver_instance *, uschar *);
430 extern void readconf_driver_init(driver_instance **, driver_info **, int,
431 void *, int, optionlist *, int, const uschar *);
432 extern const uschar *readconf_find_option(void *);
433 extern void readconf_main(BOOL);
434 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
435 extern BOOL readconf_print(const uschar *, const uschar *, BOOL);
436 extern uschar *readconf_printtime(int);
437 extern const uschar *readconf_readname(uschar *, int, const uschar *);
438 extern int readconf_readtime(const uschar *, int, BOOL);
439 extern void readconf_rest(void);
440 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
441 extern void readconf_save_config(const uschar *);
442 extern void read_message_body(BOOL);
443 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
444 extern BOOL receive_check_fs(int);
445 extern BOOL receive_check_set_sender(const uschar *);
446 extern BOOL receive_msg(BOOL);
447 extern int_eximarith_t receive_statvfs(BOOL, int *);
448 extern void receive_swallow_smtp(void);
449 extern int recv_fd_from_sock(int);
450 #ifdef WITH_CONTENT_SCAN
451 extern int regex(const uschar **, BOOL);
452 extern void regex_vars_clear(void);
454 extern void regex_at_daemon(const uschar *);
455 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
456 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
457 extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
458 pcre2_compile_context *);
459 extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
461 extern void retry_add_item(address_item *, const uschar *, int);
462 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
463 const uschar **, const uschar **);
464 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
465 extern const uschar *retry_host_key_build(const host_item *, BOOL,
467 extern BOOL retry_ultimate_address_timeout(const uschar *, const uschar *,
468 dbdata_retry *, time_t);
469 extern void retry_update(address_item **, address_item **, address_item **);
470 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
471 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
472 extern header_line *rewrite_header(header_line *,
473 const uschar *, const uschar *,
474 rewrite_rule *, int, BOOL);
475 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
477 extern void rewrite_test(const uschar *);
478 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
480 extern int route_address(address_item *, address_item **, address_item **,
481 address_item **, address_item **, int);
482 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
483 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
484 extern BOOL route_findgroup(uschar *, gid_t *);
485 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
486 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
488 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
489 struct passwd **, uid_t *, uschar **);
490 extern void route_init(void);
491 extern gstring * route_show_supported(gstring *);
492 extern void route_tidyup(void);
493 extern uschar *router_current_name(void);
495 extern uschar *search_args(const lookup_info *, uschar *, uschar *, uschar **,
497 extern uschar *search_find(void *, const uschar *, const uschar *, int,
498 const uschar *, int, int, int *, const uschar *);
499 extern const lookup_info * search_findtype(const uschar *, int);
500 extern const lookup_info * search_findtype_partial(const uschar *, int *,
501 const uschar **, int *, int *, const uschar **);
502 extern void *search_open(const uschar *, const lookup_info *, int,
504 extern void search_tidyup(void);
505 extern BOOL send_fd_over_socket(int, int);
506 extern uschar *sender_helo_verified_boolstr(void);
507 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
508 extern void sha1_end(hctx *, const uschar *, int, uschar *);
509 extern void sha1_mid(hctx *, const uschar *);
510 extern void sha1_start(hctx *);
511 extern int sieve_interpret(const uschar *, int, const sieve_block *,
512 address_item **, uschar **);
513 extern void sigalrm_handler(int);
514 extern void single_queue_run(qrunner *, const uschar *, const uschar *);
515 extern int smtp_boundsock(smtp_connect_args *);
516 extern void smtp_closedown(uschar *);
517 extern void smtp_command_timeout_exit(void) NORETURN;
518 extern void smtp_command_sigterm_exit(void) NORETURN;
519 extern void smtp_data_timeout_exit(void) NORETURN;
520 extern void smtp_data_sigint_exit(void) NORETURN;
521 extern void smtp_deliver_init(void);
522 extern uschar *smtp_cmd_hist(void);
523 extern int smtp_connect(smtp_connect_args *, const blob *);
524 extern int smtp_feof(void);
525 extern int smtp_ferror(void);
526 extern uschar *smtp_get_connection_info(void);
527 extern BOOL smtp_get_interface(uschar *, int, address_item *,
528 uschar **, uschar *);
529 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
530 extern int smtp_getc(unsigned);
531 extern uschar *smtp_getbuf(unsigned *);
532 extern void smtp_get_cache(unsigned);
533 extern BOOL smtp_hasc(void);
534 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
535 extern void smtp_log_no_mail(void);
536 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
537 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
538 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
539 extern void *smtp_reset(void *);
540 extern void smtp_respond(uschar *, int, BOOL, uschar *);
541 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
542 extern void smtp_port_for_connect(host_item *, int);
543 extern void smtp_send_prohibition_message(int, uschar *);
544 extern int smtp_setup_msg(void);
545 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
546 extern BOOL smtp_start_session(void);
547 extern int smtp_ungetc(int);
548 extern BOOL smtp_verify_helo(void);
549 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
550 #ifdef WITH_CONTENT_SCAN
551 extern int spam(const uschar **);
552 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
554 extern void spool_clear_header_globals(void);
555 extern BOOL spool_move_message(const uschar *, const uschar *, const uschar *, const uschar *);
556 extern int spool_open_datafile(const uschar *);
557 extern int spool_open_temp(uschar *);
558 extern int spool_read_header(uschar *, BOOL, BOOL);
559 extern uschar *spool_sender_from_msgid(const uschar *);
560 extern int spool_write_header(const uschar *, int, uschar **);
561 extern int stdin_getc(unsigned);
562 extern int stdin_feof(void);
563 extern int stdin_ferror(void);
564 extern BOOL stdin_hasc(void);
565 extern int stdin_ungetc(int);
567 extern void stackdump(void);
568 extern void store_exit(void);
569 extern void store_init(void);
570 extern void store_writeprotect(int);
572 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
573 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
574 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
575 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
576 extern uschar *string_base62_32(unsigned long int);
577 extern uschar *string_base62_64(unsigned long int);
578 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
579 extern int string_compare_by_pointer(const void *, const void *);
580 extern uschar *string_copy_dnsdomain(uschar *);
581 extern uschar *string_copy_malloc(const uschar *);
582 extern uschar *string_dequote(const uschar **);
583 extern uschar *string_format_size(int, uschar *);
584 extern int string_interpret_escape(const uschar **);
585 extern int string_is_ip_address(const uschar *, int *);
586 extern int string_is_ip_addressX(const uschar *, int *, const uschar **);
588 extern BOOL string_is_utf8(const uschar *);
590 extern const uschar *string_printing2(const uschar *, int);
591 extern uschar *string_split_message(uschar *);
592 extern uschar *string_unprinting(uschar *);
594 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
595 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
596 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
597 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
598 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
601 #define string_format(buf, siz, fmt, ...) \
602 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
603 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
604 const char *, ...) ALMOST_PRINTF(5,6);
606 #define string_vformat(g, flgs, fmt, ap) \
607 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
608 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
609 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
610 unsigned, unsigned, const char *, va_list);
612 #define string_open_failed(fmt, ...) \
613 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
614 extern uschar *string_open_failed_trc(const uschar *, unsigned,
615 const char *, ...) PRINTF_FUNCTION(3,4);
617 #define string_nextinlist(lp, sp, b, l) \
618 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
619 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
620 const uschar * func, int line);
622 extern int strcmpic(const uschar *, const uschar *);
623 extern int strncmpic(const uschar *, const uschar *, int);
624 extern uschar *strstric(uschar *, uschar *, BOOL);
625 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
627 extern int test_harness_fudged_queue_time(int);
628 extern void tcp_init(void);
629 #ifdef EXIM_TFO_PROBE
630 extern void tfo_probe(void);
632 extern void tls_modify_variables(tls_support *);
633 extern uschar *tod_stamp(int);
635 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
637 extern uschar *transport_current_name(void);
638 extern void transport_do_pass_socket(const uschar *, const uschar *,
639 const uschar *, uschar *, int);
640 extern void transport_init(void);
641 extern const uschar *transport_rcpt_address(address_item *, BOOL);
642 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
643 unsigned, int, address_item *, const uschar *, uschar **);
644 extern void transport_update_waiting(host_item *, const uschar *);
645 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
646 extern void transport_write_reset(int);
647 extern BOOL transport_write_string(int, const char *, ...);
648 extern BOOL transport_headers_send(transport_ctx *,
649 BOOL (*)(transport_ctx *, const uschar *, int));
650 extern gstring * transport_show_supported(gstring *);
651 extern BOOL transport_write_message(transport_ctx *, int);
652 extern void tree_add_duplicate(const uschar *, address_item *);
653 extern void tree_add_nonrecipient(const uschar *);
654 extern void tree_add_unusable(const host_item *);
655 extern void tree_dup(tree_node **, tree_node *);
656 extern int tree_insertnode(tree_node **, tree_node *);
657 extern tree_node *tree_search(tree_node *, const uschar *);
658 extern void tree_write(tree_node *, FILE *);
659 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
661 #ifdef WITH_CONTENT_SCAN
662 extern void unspool_mbox(void);
665 extern gstring *utf8_version_report(gstring *);
668 extern int vaguely_random_number(int);
670 extern int vaguely_random_number_fallback(int);
672 extern int verify_address(address_item *, FILE *, int, int, int, int,
673 uschar *, uschar *, BOOL *);
674 extern int verify_check_dnsbl(int, const uschar **, uschar **);
675 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
676 uschar *, uschar *, int, int *);
677 extern int verify_check_headers(uschar **);
678 extern int verify_check_header_names_ascii(uschar **);
679 extern int verify_check_host(uschar **);
680 extern int verify_check_notblind(BOOL);
681 extern int verify_check_given_host(const uschar **, const host_item *);
682 extern int verify_check_this_host(const uschar **, unsigned int *,
683 const uschar*, const uschar *, const uschar **);
684 extern address_item *verify_checked_sender(const uschar *);
685 extern void verify_get_ident(int);
686 extern void verify_quota(uschar *);
687 extern int verify_quota_call(const uschar *, int, int, uschar **);
688 extern BOOL verify_sender(int *, uschar **);
689 extern BOOL verify_sender_preliminary(int *, uschar **);
690 extern void version_init(void);
692 extern BOOL write_chunk(transport_ctx *, const uschar *, int);
693 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
694 extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
696 #ifdef EXPERIMENTAL_XCLIENT
697 extern uschar * xclient_smtp_command(uschar *, int *, BOOL *);
698 extern gstring * xclient_smtp_advertise_str(gstring *);
700 extern uschar *xtextencode(uschar *, int);
701 extern int xtextdecode(uschar *, uschar **);
704 /******************************************************************************/
705 /* Predicate: if an address is in a tainted pool.
706 By extension, a variable pointing to this address is tainted.
710 is_tainted(const void * p)
712 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
716 extern BOOL is_tainted_fn(const void *);
717 return is_tainted_fn(p);
722 is_incompatible(const void * old, const void * new)
724 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
728 extern BOOL is_incompatible_fn(const void *, const void *);
729 return is_incompatible_fn(old, new);
733 /******************************************************************************/
734 /* String functions */
735 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
737 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
738 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
740 return US strcat(CS dst, CCS src);
742 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
744 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
745 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
747 return US strcpy(CS dst, CCS src);
749 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
751 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
752 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
754 return US strncat(CS dst, CCS src, n);
756 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
758 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
759 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
761 return US strncpy(CS dst, CCS src, n);
763 /*XXX will likely need unchecked copy also */
766 /* Advance the string pointer given over any whitespace.
767 Return the next char as there's enough places using it to be useful. */
769 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
771 static inline uschar skip_whitespace(const uschar ** sp)
772 { while (isspace(**sp)) (*sp)++; return **sp; }
774 /* Ditto, non-whitespace */
776 #define Uskip_nonwhite(sp) skip_nonwhite(CUSS sp)
777 static inline uschar skip_nonwhite(const uschar ** sp)
778 { while (**sp && !isspace(**sp)) (*sp)++; return **sp; }
781 /******************************************************************************/
783 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
784 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
785 chown(<exim-uid>, <exim-gid>).
787 Probably because the idmapping is broken, misconfigured or set up in
788 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
789 case of misconfiguration, or if there are more such broken systems
790 out, I try to impose as least impact as possible and for now just write
791 a panic log entry pointing to the bug report. You're encouraged to
792 contact the developers, if you experience this issue.
794 fd the file descriptor (or -1 if not valid)
795 name the file name for error messages or for file operations,
800 returns 0 on success, -1 on failure */
803 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
805 return fchown(fd, owner, group)
806 ? exim_chown_failure(fd, name, owner, group) : 0;
810 exim_chown(const uschar *name, uid_t owner, gid_t group)
812 return chown(CCS name, owner, group)
813 ? exim_chown_failure(-1, name, owner, group) : 0;
815 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
817 /******************************************************************************/
818 /* String functions */
820 #if !defined(MACRO_PREDEF)
821 /*************************************************
822 * Copy and save string *
823 *************************************************/
825 /* This function assumes that memcpy() is faster than strcpy().
826 The result is explicitly nul-terminated.
829 static inline uschar *
830 string_copyn_taint_trc(const uschar * s, unsigned len,
831 const void * proto_mem, const char * func, int line)
834 unsigned slen = Ustrlen(s);
835 if (len > slen) len = slen;
836 ss = store_get_3(len + 1, proto_mem, func, line);
842 static inline uschar *
843 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
844 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
846 static inline uschar *
847 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
848 { return string_copyn_taint_trc(s, len, s, func, line); }
849 static inline uschar *
850 string_copy_trc(const uschar * s, const char * func, int line)
851 { return string_copy_taint_trc(s, s, func, line); }
854 /* String-copy functions explicitly setting the taint status */
856 #define string_copyn_taint(s, len, proto_mem) \
857 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
858 #define string_copy_taint(s, proto_mem) \
859 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
861 /* Simple string-copy functions maintaining the taint */
863 #define string_copyn(s, len) \
864 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
865 #define string_copy(s) \
866 string_copy_trc((s), __FUNCTION__, __LINE__)
869 /*************************************************
870 * Copy, lowercase and save string *
871 *************************************************/
874 Argument: string to copy
875 Returns: copy of string in new store, with letters lowercased
878 static inline uschar *
879 string_copylc(const uschar * s)
881 uschar * ss = store_get(Ustrlen(s) + 1, s);
883 while (*s) *p++ = tolower(*s++);
890 /*************************************************
891 * Copy, lowercase, and save string, given length *
892 *************************************************/
894 /* It is assumed the data contains no zeros. A zero is added
899 n number of characters
901 Returns: copy of string in new store, with letters lowercased
904 static inline uschar *
905 string_copynlc(uschar * s, int n)
907 uschar * ss = store_get(n + 1, s);
909 while (n-- > 0) *p++ = tolower(*s++);
915 # ifndef COMPILE_UTILITY
916 /*************************************************
917 * Copy and save string in longterm store *
918 *************************************************/
920 /* This function assumes that memcpy() is faster than strcpy().
922 Argument: string to copy
923 Returns: copy of string in new store
926 static inline uschar *
927 string_copy_perm(const uschar *s, BOOL force_taint)
929 int old_pool = store_pool;
930 int len = Ustrlen(s) + 1;
933 store_pool = POOL_PERM;
934 ss = store_get(len, force_taint ? GET_TAINTED : s);
936 store_pool = old_pool;
943 /* sprintf into a buffer, taint-unchecked */
946 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
948 gstring gs = { .size = siz, .ptr = 0, .s = buf };
951 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
957 /******************************************************************************/
958 /* Growable-string functions */
960 /* Create a growable-string with some preassigned space */
962 #define string_get_tainted(size, proto_mem) \
963 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
965 static inline gstring *
966 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
968 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
969 g->size = size; /*XXX would be good if we could see the actual alloc size */
975 #define string_get(size) \
976 string_get_trc((size), __FUNCTION__, __LINE__)
978 static inline gstring *
979 string_get_trc(unsigned size, const char * func, unsigned line)
981 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
984 /* NUL-terminate the C string in the growable-string, and return it. */
986 static inline uschar *
987 string_from_gstring(gstring * g)
995 len_string_from_gstring(gstring * g, uschar ** sp)
1000 g->s[g->ptr] = '\0';
1010 static inline uschar *
1011 string_copy_from_gstring(gstring * g)
1013 return g ? string_copyn(g->s, g->ptr) : NULL;
1016 static inline unsigned
1017 gstring_length(const gstring * g)
1019 return g ? (unsigned)g->ptr : 0;
1022 static inline uschar
1023 gstring_last_char(gstring * g)
1025 return g->s[g->ptr-1];
1029 gstring_trim(gstring * g, unsigned amount)
1035 gstring_trim_trailing(gstring * g, uschar c)
1037 if (gstring_last_char(g) == c) gstring_trim(g, 1);
1041 gstring_reset(gstring * g)
1047 #define gstring_release_unused(g) \
1048 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
1051 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
1053 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
1057 /* plain string append to a growable-string */
1059 static inline gstring * string_cat(gstring * g, const uschar * s)
1062 static inline gstring *
1063 string_cat(gstring * g, const uschar * s)
1065 return string_catn(g, s, Ustrlen(s));
1069 /* sprintf-append to a growable-string */
1071 #define string_fmt_append(g, fmt, ...) \
1072 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1073 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
1075 #define string_fmt_append_f(g, flgs, fmt, ...) \
1076 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1077 flgs, fmt, __VA_ARGS__)
1079 static inline gstring *
1080 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
1081 unsigned flags, const char *format, ...)
1084 va_start(ap, format);
1085 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
1092 /* Copy the content of a string to tainted memory. The proto_mem arg
1093 will always be tainted, and suitable as a prototype. */
1096 gstring_rebuffer(gstring * g, const void * proto_mem)
1098 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1099 memcpy(s, g->s, g->ptr);
1103 /* Append one gstring to another */
1105 static inline gstring *
1106 gstring_append(gstring * dest, gstring * item)
1108 return string_catn(dest, item->s, item->ptr);
1112 # ifndef COMPILE_UTILITY
1113 /******************************************************************************/
1114 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1115 for them as the strings we proceed to copy from them meant they could not be
1116 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1117 we do have to take care over marking tainted all copied strings. A separate pool
1118 could be used and would handle that implicitly. */
1120 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1122 static inline dns_answer *
1123 store_get_dns_answer_trc(const uschar * func, unsigned line)
1125 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1128 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1131 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1133 store_free_3(dnsa, CCS func, line);
1137 /* Check for an RR being large enough. Return TRUE iff bad. */
1139 rr_bad_size(const dns_record * rr, size_t minbytes)
1141 return rr->size < minbytes;
1144 /* Check for an RR having further data beyond a given pointer.
1145 Return TRUE iff bad. */
1147 rr_bad_increment(const dns_record * rr, const uschar * ptr, size_t minbytes)
1149 return rr_bad_size(rr, ptr - rr->data + minbytes);
1152 /******************************************************************************/
1153 /* Routines with knowledge of spool layout */
1156 spool_pname_buf(uschar * buf, int len)
1158 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1161 static inline uschar *
1162 spool_dname(const uschar * purpose, uschar * subdir)
1164 return string_sprintf("%s/%s/%s/%s",
1165 spool_directory, queue_name, purpose, subdir);
1169 static inline uschar *
1170 spool_q_sname(const uschar * purpose, const uschar * q, const uschar * subdir)
1172 return string_sprintf("%s%s%s%s%s",
1175 *subdir ? "/" : "", subdir);
1178 static inline uschar *
1179 spool_sname(const uschar * purpose, const uschar * subdir)
1181 return spool_q_sname(purpose, queue_name, subdir);
1184 static inline uschar *
1185 spool_q_fname(const uschar * purpose, const uschar * q,
1186 const uschar * subdir, const uschar * fname, const uschar * suffix)
1188 return string_sprintf("%s/%s/%s/%s/%s%s",
1189 spool_directory, q, purpose, subdir, fname, suffix);
1192 static inline uschar *
1193 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1194 const uschar * suffix)
1196 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1197 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1198 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1199 uschar * buf = store_get(len, GET_UNTAINTED);
1200 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1201 spool_directory, queue_name, purpose, subdir, fname, suffix);
1204 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1209 set_subdir_str(uschar * subdir_str, const uschar * name,
1210 int search_sequence)
1212 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1213 ? name[MESSAGE_ID_TIME_LEN-1] : '\0';
1214 subdir_str[1] = '\0';
1217 /******************************************************************************/
1218 /* Message-ID format transition knowlege */
1221 is_new_message_id(const uschar * id)
1223 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN] == '-';
1227 is_old_message_id(const uschar * id)
1229 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN_OLD] == '-';
1232 static inline unsigned
1233 spool_data_start_offset(const uschar * id)
1235 if (is_old_message_id(id)) return SPOOL_DATA_START_OFFSET_OLD;
1236 return SPOOL_DATA_START_OFFSET;
1239 /******************************************************************************/
1240 /* Time calculations */
1242 /* Diff two times (later, earlier) returning diff in 1st arg */
1244 timediff(struct timeval * later, const struct timeval * earlier)
1246 later->tv_sec -= earlier->tv_sec;
1247 if ((later->tv_usec -= earlier->tv_usec) < 0)
1250 later->tv_usec += 1000*1000;
1255 timesince(struct timeval * diff, const struct timeval * then)
1257 gettimeofday(diff, NULL);
1258 timediff(diff, then);
1261 static inline uschar *
1262 string_timediff(const struct timeval * diff)
1264 static uschar buf[16];
1266 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1267 return readconf_printtime((int)diff->tv_sec);
1269 snprintf(CS buf, sizeof(buf), "%u.%03us",
1270 (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1275 static inline uschar *
1276 string_timesince(const struct timeval * then)
1278 struct timeval diff;
1279 timesince(&diff, then);
1280 return string_timediff(&diff);
1284 report_time_since(const struct timeval * t0, const uschar * where)
1286 # ifdef MEASURE_TIMING
1287 struct timeval diff;
1288 timesince(&diff, t0);
1289 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1290 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1296 testharness_pause_ms(int millisec)
1298 #ifndef MEASURE_TIMING
1299 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1303 /******************************************************************************/
1304 /* Taint-checked file opens */
1307 exim_open2(const char *pathname, int flags)
1309 if (!is_tainted(pathname)) return open(pathname, flags);
1310 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1315 exim_open(const char *pathname, int flags, mode_t mode)
1317 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1318 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1322 #ifdef EXIM_HAVE_OPENAT
1324 exim_openat(int dirfd, const char *pathname, int flags)
1326 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1327 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1332 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1334 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1335 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1341 static inline FILE *
1342 exim_fopen(const char *pathname, const char *mode)
1344 if (!is_tainted(pathname)) return fopen(pathname, mode);
1345 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1351 exim_opendir(const uschar * name)
1353 if (!is_tainted(name)) return opendir(CCS name);
1354 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1359 /******************************************************************************/
1360 # if !defined(COMPILE_UTILITY)
1362 /* We use the PID of the head process for a connection-id. Note that
1363 this is only for tracking a received connection and what it directly
1364 causes; there is no inttent to describe transport-initiated TCP connections.
1365 The value is intented to be a cookie usable for logging, and we might change
1366 the generator for it at any time. */
1369 set_connection_id(void)
1371 connection_id = string_sprintf("%lu", (u_long)getpid());
1375 /* Process manipulation */
1378 exim_fork(const unsigned char * purpose)
1381 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1382 if ((pid = fork()) == 0)
1384 f.daemon_listen = FALSE;
1385 process_purpose = purpose;
1386 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1390 testharness_pause_ms(100); /* let child work */
1391 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1398 child_open_exim(int * fdptr, const uschar * purpose)
1399 { return child_open_exim_function(fdptr, purpose); }
1402 child_open_exim2(int * fdptr, uschar * sender,
1403 uschar * sender_auth, const uschar * purpose)
1404 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1407 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1408 int *outfdptr, BOOL make_leader, const uschar * purpose)
1409 { return child_open_function(argv, envp, newumask, infdptr,
1410 outfdptr, make_leader, purpose);
1413 /* Return 1 if fd is usable per pollbits, else 0 */
1415 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1417 struct pollfd p = {.fd = fd, .events = pollbits};
1418 return poll(&p, 1, tmo_millisec);
1421 /******************************************************************************/
1422 /* Client-side smtp log string, for debug */
1425 smtp_debug_cmd_log_init(void)
1427 # ifndef DISABLE_CLIENT_CMD_LOG
1428 int old_pool = store_pool;
1429 store_pool = POOL_PERM;
1430 client_cmd_log = string_get_tainted(56, GET_TAINTED);
1431 *client_cmd_log->s = '\0';
1432 store_pool = old_pool;
1438 smtp_debug_cmd(const uschar * buf, int mode)
1440 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1441 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1443 # ifndef DISABLE_CLIENT_CMD_LOG
1445 int len = Ustrcspn(buf, " \n"), old_pool = store_pool;
1446 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1447 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1448 if (mode == SCMD_BUFFER)
1449 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1450 else if (mode == SCMD_MORE)
1451 client_cmd_log = string_catn(client_cmd_log, US"+", 1);
1452 store_pool = old_pool;
1458 /* This might be called both due to callout and then from delivery.
1459 Use memory that will not be released between those phases.
1462 smtp_debug_resp(const uschar * buf)
1464 # ifndef DISABLE_CLIENT_CMD_LOG
1465 int old_pool = store_pool;
1466 store_pool = POOL_PERM;
1467 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf,
1468 buf[3] == '-' ? 4 : 3);
1469 store_pool = old_pool;
1475 smtp_debug_cmd_report(void)
1477 # ifndef DISABLE_CLIENT_CMD_LOG
1478 if (client_cmd_log && *client_cmd_log->s)
1480 debug_printf("cmdlog: '%Y'\n", client_cmd_log);
1481 gstring_reset(client_cmd_log);
1484 debug_printf("cmdlog: (unset)\n");
1491 expand_max_rcpt(const uschar * str_max_rcpt)
1493 const uschar * s = expand_cstring(str_max_rcpt);
1495 return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
1498 /******************************************************************************/
1499 /* Queue-runner operations */
1502 is_onetime_qrun(void)
1504 return qrunners && !qrunners->next && qrunners->interval == 0;
1508 is_multiple_qrun(void)
1510 return qrunners && (qrunners->interval > 0 || qrunners->next);
1514 # endif /* !COMPILE_UTILITY */
1516 /******************************************************************************/
1517 #endif /* !MACRO_PREDEF */
1519 #endif /* _FUNCTIONS_H_ */
1523 /* End of functions.h */