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. */
24 std_dh_prime_default(void);
26 std_dh_prime_named(const uschar *);
28 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
29 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
30 extern uschar * tls_cert_issuer(void *, uschar * mod);
31 extern uschar * tls_cert_not_before(void *, uschar * mod);
32 extern uschar * tls_cert_not_after(void *, uschar * mod);
33 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
34 extern uschar * tls_cert_serial_number(void *, uschar * mod);
35 extern uschar * tls_cert_signature(void *, uschar * mod);
36 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
37 extern uschar * tls_cert_subject(void *, uschar * mod);
38 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
39 extern uschar * tls_cert_version(void *, uschar * mod);
41 extern uschar * tls_cert_der_b64(void * cert);
42 extern uschar * tls_cert_fprt_md5(void *);
43 extern uschar * tls_cert_fprt_sha1(void *);
44 extern uschar * tls_cert_fprt_sha256(void *);
46 extern void tls_clean_env(void);
47 extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
48 void *, tls_support *, uschar **);
49 extern BOOL tls_client_adjunct_start(host_item *, client_conn_ctx *,
50 const uschar *, uschar **);
51 extern void tls_client_creds_reload(BOOL);
53 extern void tls_close(void *, int);
54 extern BOOL tls_could_getc(void);
55 extern void tls_daemon_init(void);
56 extern int tls_daemon_tick(void);
57 extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
58 extern BOOL tls_export_cert(uschar *, size_t, void *);
59 extern int tls_feof(void);
60 extern int tls_ferror(void);
61 extern uschar *tls_field_from_dn(uschar *, const uschar *);
62 extern void tls_free_cert(void **);
63 extern int tls_getc(unsigned);
64 extern uschar *tls_getbuf(unsigned *);
65 extern void tls_get_cache(unsigned);
66 extern BOOL tls_hasc(void);
67 extern BOOL tls_import_cert(const uschar *, void **);
68 extern BOOL tls_is_name_for_cert(const uschar *, void *);
70 extern BOOL tls_openssl_options_parse(uschar *, long *);
72 extern int tls_read(void *, uschar *, size_t);
73 extern int tls_server_start(uschar **);
74 extern void tls_shutdown_wr(void *);
75 extern BOOL tls_smtp_buffered(void);
76 extern int tls_ungetc(int);
77 #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT)
78 extern void tls_watch_discard_event(int);
79 extern void tls_watch_invalidate(void);
81 extern int tls_write(void *, const uschar *, size_t, BOOL);
82 extern uschar *tls_validate_require_cipher(void);
83 extern gstring *tls_version_report(gstring *);
86 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
89 #endif /*DISABLE_TLS*/
92 /* Everything else... */
94 extern acl_block *acl_read(uschar *(*)(void), uschar **);
95 extern int acl_check(int, const uschar *, uschar *, uschar **, uschar **);
96 extern uschar *acl_current_verb(void);
97 extern int acl_eval(int, uschar *, uschar **, uschar **);
98 extern uschar *acl_standalone_setvar(const uschar *, BOOL);
100 extern tree_node *acl_var_create(uschar *);
101 extern void acl_var_write(uschar *, uschar *, void *);
102 extern void add_driver_info(driver_info **, const driver_info *, size_t);
105 extern void assert_no_variables(void *, int, const char *, int);
106 extern int auth_call_pwcheck(uschar *, uschar **);
107 extern int auth_call_saslauthd(const uschar *, const uschar *,
108 const uschar *, const uschar *, uschar **);
109 extern int auth_check_serv_cond(auth_instance *);
110 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
111 extern int auth_client_item(void *, auth_instance *, const uschar **,
112 unsigned, int, uschar *, int);
115 extern int auth_get_data(uschar **, const uschar *, int);
116 extern int auth_get_no64_data(uschar **, uschar *);
117 extern int auth_prompt(const uschar *);
118 extern int auth_read_input(const uschar *);
119 extern gstring * auth_show_supported(gstring *);
120 extern uschar *authenticator_current_name(void);
122 extern gstring *authres_smtpauth(gstring *);
124 extern uschar *b64encode(const uschar *, int);
125 extern uschar *b64encode_taint(const uschar *, int, const void *);
126 extern int b64decode(const uschar *, uschar **, const void *);
127 extern int bdat_getc(unsigned);
128 extern uschar *bdat_getbuf(unsigned *);
129 extern BOOL bdat_hasc(void);
130 extern int bdat_ungetc(int);
131 extern void bdat_flush_data(void);
133 extern void bits_clear(unsigned int *, size_t, int *);
134 extern void bits_set(unsigned int *, size_t, int *);
136 extern void cancel_cutthrough_connection(BOOL, const uschar *);
137 extern gstring *cat_file(FILE *, gstring *, uschar *);
138 extern gstring *cat_file_tls(void *, gstring *, uschar *);
139 extern int check_host(void *, const uschar *, const uschar **, uschar **);
140 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
141 extern pid_t child_open_exim_function(int *, const uschar *);
142 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
144 extern pid_t child_open_function(uschar **, uschar **, int,
145 int *, int *, BOOL, const uschar *);
146 extern pid_t child_open_uid(const uschar **, const uschar **, int,
147 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
148 extern BOOL cleanup_environment(void);
149 extern void cutthrough_data_puts(uschar *, int);
150 extern void cutthrough_data_put_nl(void);
151 extern uschar *cutthrough_finaldot(void);
152 extern BOOL cutthrough_flush_send(void);
153 extern BOOL cutthrough_headers_send(void);
154 extern BOOL cutthrough_predata(void);
155 extern void release_cutthrough_connection(const uschar *);
157 extern void daemon_go(void);
158 #ifndef COMPILE_UTILITY
159 extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
160 extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
163 #ifdef EXPERIMENTAL_DCC
164 extern int dcc_process(uschar **);
167 extern void debug_logging_activate(const uschar *, const uschar *);
168 extern void debug_logging_from_spool(const uschar *);
169 extern void debug_logging_stop(BOOL);
170 extern void debug_print_argv(const uschar **);
171 extern void debug_print_ids(uschar *);
172 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
173 extern void debug_print_string(uschar *);
174 extern void debug_print_tree(const char *, tree_node *);
175 extern void debug_vprintf(int, const char *, va_list);
176 extern void debug_pretrigger_setup(const uschar *);
177 extern void debug_pretrigger_discard(void);
178 extern void debug_print_socket(int);
179 extern void debug_trigger_fire(void);
181 extern void decode_bits(unsigned int *, size_t, int *,
182 const uschar *, bit_table *, int, uschar *, int);
183 extern void delete_pid_file(void);
184 extern void deliver_local(address_item *, BOOL);
185 extern address_item *deliver_make_addr(const uschar *, BOOL);
186 extern void delivery_log(int, address_item *, int, uschar *);
187 extern int deliver_message(const uschar *, BOOL, BOOL);
188 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
189 extern void deliver_set_expansions(address_item *);
190 extern int deliver_split_address(address_item *);
191 extern void deliver_succeeded(address_item *);
193 extern void delivery_re_exec(int);
195 extern void die_tainted(const uschar *, const uschar *, int);
196 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
197 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
198 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
199 extern uschar *dns_build_reverse(const uschar *);
200 extern time_t dns_expire_from_soa(dns_answer *, int);
201 extern void dns_init(BOOL, BOOL, BOOL);
202 extern BOOL dns_is_aa(const dns_answer *);
203 extern BOOL dns_is_secure(const dns_answer *);
204 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
205 extern void dns_pattern_init(void);
206 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
207 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
208 extern uschar *dns_text_type(int);
209 extern void dscp_list_to_stream(FILE *);
210 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
212 extern void enq_end(uschar *);
213 extern BOOL enq_start(uschar *, unsigned);
214 #ifndef DISABLE_EVENT
215 extern uschar *event_raise(const uschar *, const uschar *, const uschar *, int *);
216 extern void msg_event_raise(const uschar *, const address_item *);
219 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
220 extern const uschar * exim_errstr(int);
221 extern void exim_exit(int) NORETURN;
222 extern void exim_gettime(struct timeval *);
223 extern void exim_nullstd(void);
224 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
225 extern void exim_underbar_exit(int) NORETURN;
226 extern void exim_wait_tick(struct timeval *, int);
227 extern int exp_bool(address_item *,
228 const uschar *, const uschar *, unsigned, uschar *, BOOL bvalue,
229 const uschar *, BOOL *);
230 extern BOOL expand_check_condition(const uschar *, const uschar *, const uschar *);
231 extern uschar *expand_file_big_buffer(const uschar *);
232 extern uschar *expand_string(uschar *); /* public, cannot make const */
233 extern const uschar *expand_string_2(const uschar *, BOOL *);
234 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
235 extern uschar *expand_getkeyed(const uschar *, const uschar *);
237 extern uschar *expand_hide_passwords(uschar * );
238 extern uschar *expand_string_copy(const uschar *);
239 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
240 extern void modify_variable(uschar *, void *);
242 extern BOOL fd_ready(int, time_t);
244 extern int filter_interpret(const uschar *, int, address_item **, uschar **);
245 extern BOOL filter_personal(string_item *, BOOL);
246 extern BOOL filter_runtest(int, const uschar *, BOOL, BOOL);
247 extern BOOL filter_system_interpret(address_item **, uschar **);
249 extern uschar * fn_hdrs_added(void);
250 extern void force_fd(int, int);
252 extern void header_add(int, const char *, ...);
253 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
254 extern int header_checkname(header_line *, BOOL);
255 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
256 extern int host_address_extract_port(uschar *);
257 extern uschar *host_and_ident(BOOL);
258 extern int host_aton(const uschar *, int *);
259 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
260 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
261 extern void host_build_log_info(void);
262 extern void host_build_sender_fullhost(void);
263 extern int host_find_byname(host_item *, const uschar *, int,
264 const uschar **, BOOL);
265 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
266 uschar *, const dnssec_domains *, const uschar **, BOOL *);
267 extern ip_address_item *host_find_interfaces(void);
268 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
269 extern BOOL host_is_tls_on_connect_port(int);
270 extern int host_item_get_port(host_item *);
271 extern void host_mask(int, int *, int);
272 extern int host_name_lookup(void);
273 extern int host_nmtoa(int, const int *, int, uschar *, int);
274 extern uschar *host_ntoa(int, const void *, uschar *, int *);
275 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
277 extern uschar *imap_utf7_encode(uschar *, const uschar *,
278 uschar, uschar *, uschar **);
280 extern void invert_address(uschar *, uschar *);
281 extern int ip_addr(void *, int, const uschar *, int);
282 extern int ip_bind(int, int, uschar *, int);
283 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
284 extern int ip_connectedsocket(int, const uschar *, int, int,
285 int, host_item *, uschar **, const blob *);
286 extern int ip_get_address_family(int);
287 extern void ip_keepalive(int, const uschar *, BOOL);
288 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
289 extern int ip_socket(int, int);
291 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
292 extern int ip_unixsocket(const uschar *, uschar **);
293 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
295 extern int ipv6_nmtoa(int *, uschar *);
297 extern const uschar *local_part_quote(const uschar *);
298 extern int log_open_as_exim(const uschar * const);
299 extern void log_close_all(void);
300 extern const lookup_info * lookup_with_acq_num(unsigned);
301 #ifdef LOOKUP_MODULE_DIR
302 extern BOOL lookup_one_mod_load(const uschar *, uschar **);
306 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
307 extern BOOL macro_read_assignment(uschar *);
308 extern uschar *macros_expand(int, int *, BOOL *);
309 extern void mainlog_close(void);
310 #ifdef WITH_CONTENT_SCAN
311 extern int malware(const uschar *, BOOL, int);
312 extern int malware_in_file(const uschar *);
313 extern void malware_init(void);
314 extern gstring * malware_show_supported(gstring *);
316 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
317 unsigned int *, int, int, const uschar **);
318 extern int match_address_list_basic(const uschar *, const uschar **, int);
319 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
320 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
321 const uschar *, const uschar **);
322 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
323 unsigned int *, int, BOOL, const uschar **);
324 extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
327 extern void message_start(void);
328 extern void message_tidyup(void);
329 extern void md5_end(md5 *, const uschar *, int, uschar *);
330 extern void md5_mid(md5 *, const uschar *);
331 extern void md5_start(md5 *);
332 extern void millisleep(int);
333 #ifdef WITH_CONTENT_SCAN
334 struct mime_boundary_context;
335 extern int mime_acl_check(uschar *acl, FILE *f,
336 struct mime_boundary_context *, uschar **, uschar **);
337 extern int mime_decode(const uschar **);
338 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
339 extern int mime_regex(const uschar **, BOOL);
340 extern void mime_set_anomaly(int);
343 extern gstring *misc_mod_authres(gstring *);
344 extern int misc_mod_conn_init(const uschar *, const uschar *);
345 extern misc_module_info * misc_mod_find(const uschar * modname, uschar **);
346 extern misc_module_info * misc_mod_findonly(const uschar * modname);
347 extern int misc_mod_msg_init(void);
348 extern void misc_mod_smtp_reset(void);
350 extern uschar *moan_check_errorcopy(const uschar *);
351 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
353 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
354 extern BOOL moan_send_message(const uschar *, int, error_block *eblock,
355 header_line *, FILE *, uschar *);
356 extern void moan_tell_someone(uschar *, address_item *,
357 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
358 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
359 extern void moan_write_from(FILE *);
360 extern void moan_write_references(FILE *, uschar *);
361 #ifdef LOOKUP_MODULE_DIR
362 //extern void mod_load_check(const uschar *);
364 extern FILE *modefopen(const uschar *, const char *, mode_t);
366 extern int open_cutthrough_connection( address_item * addr );
368 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
370 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
371 const uschar *, const uschar *, error_block **);
372 extern uschar *parse_find_address_end(const uschar *, BOOL);
373 extern const uschar *parse_find_at(const uschar *);
374 extern const uschar *parse_fix_phrase(const uschar *, int);
375 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
376 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
378 extern const uschar *parse_date_time(const uschar *str, time_t *t);
379 extern void priv_drop_temp(const uid_t, const gid_t);
380 extern void priv_restore(void);
382 extern BOOL proxy_protocol_host(void);
383 extern void proxy_protocol_setup(void);
386 extern BOOL queue_action(const uschar *, int, const uschar **, int, int);
387 extern void queue_check_only(void);
388 extern unsigned queue_count(void);
389 extern unsigned queue_count_cached(void);
390 extern void queue_list(int, const uschar **, int);
391 #ifndef DISABLE_QUEUE_RAMP
392 extern void queue_notify_daemon(const uschar * hostname);
394 extern void queue_run(qrunner *, const uschar *, const uschar *, BOOL);
396 extern int random_number(int);
397 extern const uschar *rc_to_string(int);
398 extern int rda_interpret(redirect_block *, int, const uschar *,
399 const sieve_block *, const ugid_block *, address_item **,
400 uschar **, error_block **, int *, const uschar *);
401 extern int rda_is_filter(const uschar *);
402 extern BOOL readconf_depends(driver_instance *, uschar *);
403 extern void readconf_driver_init(driver_instance **, driver_info **, int,
404 void *, int, optionlist *, int, const uschar *);
405 extern const uschar *readconf_find_option(void *);
406 extern void readconf_main(BOOL);
407 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
408 extern BOOL readconf_print(const uschar *, const uschar *, BOOL);
409 extern uschar *readconf_printtime(int);
410 extern const uschar *readconf_readname(uschar *, int, const uschar *);
411 extern int readconf_readtime(const uschar *, int, BOOL);
412 extern void readconf_rest(void);
413 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
414 extern void readconf_save_config(const uschar *);
415 extern void read_message_body(BOOL);
416 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
417 extern BOOL receive_check_fs(int);
418 extern BOOL receive_check_set_sender(const uschar *);
419 extern BOOL receive_msg(BOOL);
420 extern int_eximarith_t receive_statvfs(BOOL, int *);
421 extern void receive_swallow_smtp(void);
422 extern int recv_fd_from_sock(int);
423 #ifdef WITH_CONTENT_SCAN
424 extern int regex(const uschar **, BOOL);
425 extern void regex_vars_clear(void);
427 extern void regex_at_daemon(const uschar *);
428 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
429 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
430 extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
431 pcre2_compile_context *);
432 extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
434 extern void retry_add_item(address_item *, const uschar *, int);
435 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
436 const uschar **, const uschar **);
437 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
438 extern const uschar *retry_host_key_build(const host_item *, BOOL,
440 extern BOOL retry_ultimate_address_timeout(const uschar *, const uschar *,
441 dbdata_retry *, time_t);
442 extern void retry_update(address_item **, address_item **, address_item **);
443 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
444 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
445 extern header_line *rewrite_header(header_line *,
446 const uschar *, const uschar *,
447 rewrite_rule *, int, BOOL);
448 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
450 extern void rewrite_test(const uschar *);
451 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
453 extern int route_address(address_item *, address_item **, address_item **,
454 address_item **, address_item **, int);
455 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
456 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
457 extern BOOL route_findgroup(uschar *, gid_t *);
458 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
459 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
461 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
462 struct passwd **, uid_t *, uschar **);
463 extern void route_init(void);
464 extern gstring * route_show_supported(gstring *);
465 extern void route_tidyup(void);
466 extern uschar *router_current_name(void);
468 extern uschar *search_args(const lookup_info *, uschar *, uschar *, uschar **,
470 extern uschar *search_find(void *, const uschar *, const uschar *, int,
471 const uschar *, int, int, int *, const uschar *);
472 extern const lookup_info * search_findtype(const uschar *, int);
473 extern const lookup_info * search_findtype_partial(const uschar *, int *,
474 const uschar **, int *, int *, const uschar **);
475 extern void *search_open(const uschar *, const lookup_info *, int,
477 extern void search_tidyup(void);
478 extern BOOL send_fd_over_socket(int, int);
479 extern uschar *sender_helo_verified_boolstr(void);
480 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
481 extern void sha1_end(hctx *, const uschar *, int, uschar *);
482 extern void sha1_mid(hctx *, const uschar *);
483 extern void sha1_start(hctx *);
484 extern void sigalrm_handler(int);
485 extern void single_queue_run(qrunner *, const uschar *, const uschar *);
486 extern int smtp_boundsock(smtp_connect_args *);
487 extern void smtp_closedown(uschar *);
488 extern void smtp_command_timeout_exit(void) NORETURN;
489 extern void smtp_command_sigterm_exit(void) NORETURN;
490 extern void smtp_data_timeout_exit(void) NORETURN;
491 extern void smtp_data_sigint_exit(void) NORETURN;
492 extern void smtp_deliver_init(void);
493 extern uschar *smtp_cmd_hist(void);
494 extern int smtp_connect(smtp_connect_args *, const blob *);
495 extern int smtp_feof(void);
496 extern int smtp_ferror(void);
497 extern uschar *smtp_get_connection_info(void);
498 extern BOOL smtp_get_interface(uschar *, int, address_item *,
499 uschar **, uschar *);
500 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
501 extern int smtp_getc(unsigned);
502 extern uschar *smtp_getbuf(unsigned *);
503 extern void smtp_get_cache(unsigned);
504 extern BOOL smtp_hasc(void);
505 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
506 extern void smtp_log_no_mail(void);
507 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
508 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
509 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
510 extern void *smtp_reset(void *);
511 extern void smtp_respond(uschar *, int, BOOL, uschar *);
512 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
513 extern void smtp_port_for_connect(host_item *, int);
514 extern void smtp_send_prohibition_message(int, uschar *);
515 extern int smtp_setup_msg(void);
516 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
517 extern BOOL smtp_start_session(void);
518 extern int smtp_ungetc(int);
519 extern void smtp_verify_feed(const uschar *, unsigned);
520 extern BOOL smtp_verify_helo(void);
521 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
522 #ifdef WITH_CONTENT_SCAN
523 extern int spam(const uschar **);
524 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
526 extern void spool_clear_header_globals(void);
527 extern BOOL spool_move_message(const uschar *, const uschar *, const uschar *, const uschar *);
528 extern int spool_open_datafile(const uschar *);
529 extern int spool_open_temp(uschar *);
530 extern int spool_read_header(uschar *, BOOL, BOOL);
531 extern uschar *spool_sender_from_msgid(const uschar *);
532 extern int spool_write_header(const uschar *, int, uschar **);
533 extern int stdin_getc(unsigned);
534 extern int stdin_feof(void);
535 extern int stdin_ferror(void);
536 extern BOOL stdin_hasc(void);
537 extern int stdin_ungetc(int);
539 extern void stackdump(void);
540 extern void store_exit(void);
541 extern void store_init(void);
542 extern void store_writeprotect(int);
544 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
545 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
546 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
547 extern gstring *string_append_listele_fmt(gstring *, uschar, BOOL, const char *, ...) WARN_UNUSED_RESULT;
548 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
549 extern uschar *string_base62_32(unsigned long int);
550 extern uschar *string_base62_64(unsigned long int);
551 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
552 extern int string_compare_by_pointer(const void *, const void *);
553 extern uschar *string_copy_dnsdomain(uschar *);
554 extern uschar *string_copy_malloc(const uschar *);
555 extern uschar *string_dequote(const uschar **);
556 extern uschar *string_format_size(int, uschar *);
557 extern int string_interpret_escape(const uschar **);
558 extern int string_is_ip_address(const uschar *, int *);
559 extern int string_is_ip_addressX(const uschar *, int *, const uschar **);
561 extern BOOL string_is_utf8(const uschar *);
563 extern const uschar *string_printing2(const uschar *, int);
564 extern uschar *string_split_message(uschar *);
565 extern uschar *string_unprinting(uschar *);
567 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
568 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
569 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
570 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
571 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
574 #define string_format(buf, siz, fmt, ...) \
575 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
576 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
577 const char *, ...) ALMOST_PRINTF(5,6);
579 #define string_vformat(g, flgs, fmt, ap) \
580 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
581 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
582 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
583 unsigned, unsigned, const char *, va_list);
585 #define string_open_failed(fmt, ...) \
586 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
587 extern uschar *string_open_failed_trc(const uschar *, unsigned,
588 const char *, ...) PRINTF_FUNCTION(3,4);
590 #define string_nextinlist(lp, sp, b, l) \
591 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
592 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
593 const uschar * func, int line);
595 extern int strcmpic(const uschar *, const uschar *);
596 extern int strncmpic(const uschar *, const uschar *, int);
597 extern uschar *strstric(uschar *, uschar *, BOOL);
598 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
600 extern int test_harness_fudged_queue_time(int);
601 extern void tcp_init(void);
602 #ifdef EXIM_TFO_PROBE
603 extern void tfo_probe(void);
605 extern void tls_modify_variables(tls_support *);
606 extern uschar *tod_stamp(int);
608 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
610 extern uschar *transport_current_name(void);
611 extern void transport_do_pass_socket(const uschar *, const uschar *,
612 const uschar *, uschar *, int);
613 extern void transport_init(void);
614 extern const uschar *transport_rcpt_address(address_item *, BOOL);
615 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
616 unsigned, int, address_item *, const uschar *, uschar **);
617 extern void transport_update_waiting(host_item *, const uschar *);
618 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
619 extern void transport_write_reset(int);
620 extern BOOL transport_write_string(int, const char *, ...);
621 extern BOOL transport_headers_send(transport_ctx *,
622 BOOL (*)(transport_ctx *, const uschar *, int));
623 extern gstring * transport_show_supported(gstring *);
624 extern BOOL transport_write_message(transport_ctx *, int);
625 extern void tree_add_duplicate(const uschar *, address_item *);
626 extern void tree_add_nonrecipient(const uschar *);
627 extern void tree_add_unusable(const host_item *);
628 extern void tree_dup(tree_node **, tree_node *);
629 extern int tree_insertnode(tree_node **, tree_node *);
630 extern tree_node *tree_search(tree_node *, const uschar *);
631 extern void tree_write(tree_node *, FILE *);
632 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
634 #ifdef WITH_CONTENT_SCAN
635 extern void unspool_mbox(void);
638 extern gstring *utf8_version_report(gstring *);
641 extern int vaguely_random_number(int);
643 extern int vaguely_random_number_fallback(int);
645 extern int verify_address(address_item *, FILE *, int, int, int, int,
646 uschar *, uschar *, BOOL *);
647 extern int verify_check_dnsbl(int, const uschar **, uschar **);
648 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
649 uschar *, uschar *, int, int *);
650 extern int verify_check_headers(uschar **);
651 extern int verify_check_header_names_ascii(uschar **);
652 extern int verify_check_host(uschar **);
653 extern int verify_check_notblind(BOOL);
654 extern int verify_check_given_host(const uschar **, const host_item *);
655 extern int verify_check_this_host(const uschar **, unsigned int *,
656 const uschar*, const uschar *, const uschar **);
657 extern address_item *verify_checked_sender(const uschar *);
658 extern void verify_get_ident(int);
659 extern void verify_quota(uschar *);
660 extern int verify_quota_call(const uschar *, int, int, uschar **);
661 extern BOOL verify_sender(int *, uschar **);
662 extern BOOL verify_sender_preliminary(int *, uschar **);
663 extern void version_init(void);
665 extern BOOL write_chunk(transport_ctx *, const uschar *, int);
666 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
667 extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
669 #ifdef EXPERIMENTAL_XCLIENT
670 extern uschar * xclient_smtp_command(uschar *, int *, BOOL *);
671 extern gstring * xclient_smtp_advertise_str(gstring *);
673 extern uschar *xtextencode(uschar *, int);
674 extern int xtextdecode(uschar *, uschar **);
677 /******************************************************************************/
678 /* Predicate: if an address is in a tainted pool.
679 By extension, a variable pointing to this address is tainted.
683 is_tainted(const void * p)
685 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
689 extern BOOL is_tainted_fn(const void *);
690 return is_tainted_fn(p);
695 is_incompatible(const void * old, const void * new)
697 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
701 extern BOOL is_incompatible_fn(const void *, const void *);
702 return is_incompatible_fn(old, new);
706 /******************************************************************************/
707 /* String functions */
708 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
710 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
711 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
713 return US strcat(CS dst, CCS src);
715 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
717 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
718 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
720 return US strcpy(CS dst, CCS src);
722 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
724 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
725 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
727 return US strncat(CS dst, CCS src, n);
729 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
731 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
732 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
734 return US strncpy(CS dst, CCS src, n);
736 /*XXX will likely need unchecked copy also */
739 /* Advance the string pointer given over any whitespace.
740 Return the next char as there's enough places using it to be useful. */
742 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
744 static inline uschar skip_whitespace(const uschar ** sp)
745 { while (isspace(**sp)) (*sp)++; return **sp; }
747 /* Ditto, non-whitespace */
749 #define Uskip_nonwhite(sp) skip_nonwhite(CUSS sp)
750 static inline uschar skip_nonwhite(const uschar ** sp)
751 { while (**sp && !isspace(**sp)) (*sp)++; return **sp; }
754 /******************************************************************************/
756 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
757 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
758 chown(<exim-uid>, <exim-gid>).
760 Probably because the idmapping is broken, misconfigured or set up in
761 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
762 case of misconfiguration, or if there are more such broken systems
763 out, I try to impose as least impact as possible and for now just write
764 a panic log entry pointing to the bug report. You're encouraged to
765 contact the developers, if you experience this issue.
767 fd the file descriptor (or -1 if not valid)
768 name the file name for error messages or for file operations,
773 returns 0 on success, -1 on failure */
776 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
778 return fchown(fd, owner, group)
779 ? exim_chown_failure(fd, name, owner, group) : 0;
783 exim_chown(const uschar *name, uid_t owner, gid_t group)
785 return chown(CCS name, owner, group)
786 ? exim_chown_failure(-1, name, owner, group) : 0;
788 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
790 /******************************************************************************/
791 /* String functions */
793 #if !defined(MACRO_PREDEF)
794 /*************************************************
795 * Copy and save string *
796 *************************************************/
798 /* This function assumes that memcpy() is faster than strcpy().
799 The result is explicitly nul-terminated.
802 static inline uschar *
803 string_copyn_taint_trc(const uschar * s, unsigned len,
804 const void * proto_mem, const char * func, int line)
807 unsigned slen = Ustrlen(s);
808 if (len > slen) len = slen;
809 ss = store_get_3(len + 1, proto_mem, func, line);
815 static inline uschar *
816 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
817 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
819 static inline uschar *
820 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
821 { return string_copyn_taint_trc(s, len, s, func, line); }
822 static inline uschar *
823 string_copy_trc(const uschar * s, const char * func, int line)
824 { return string_copy_taint_trc(s, s, func, line); }
827 /* String-copy functions explicitly setting the taint status */
829 #define string_copyn_taint(s, len, proto_mem) \
830 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
831 #define string_copy_taint(s, proto_mem) \
832 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
834 /* Simple string-copy functions maintaining the taint */
836 #define string_copyn(s, len) \
837 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
838 #define string_copy(s) \
839 string_copy_trc((s), __FUNCTION__, __LINE__)
842 /*************************************************
843 * Copy, lowercase and save string *
844 *************************************************/
847 Argument: string to copy
848 Returns: copy of string in new store, with letters lowercased
851 static inline uschar *
852 string_copylc(const uschar * s)
854 uschar * ss = store_get(Ustrlen(s) + 1, s);
856 while (*s) *p++ = tolower(*s++);
863 /*************************************************
864 * Copy, lowercase, and save string, given length *
865 *************************************************/
867 /* It is assumed the data contains no zeros. A zero is added
872 n number of characters
874 Returns: copy of string in new store, with letters lowercased
877 static inline uschar *
878 string_copynlc(uschar * s, int n)
880 uschar * ss = store_get(n + 1, s);
882 while (n-- > 0) *p++ = tolower(*s++);
888 # ifndef COMPILE_UTILITY
889 /*************************************************
890 * Copy and save string in longterm store *
891 *************************************************/
893 /* This function assumes that memcpy() is faster than strcpy().
895 Argument: string to copy
896 Returns: copy of string in new store
899 static inline uschar *
900 string_copy_perm(const uschar *s, BOOL force_taint)
902 int old_pool = store_pool;
903 int len = Ustrlen(s) + 1;
906 store_pool = POOL_PERM;
907 ss = store_get(len, force_taint ? GET_TAINTED : s);
909 store_pool = old_pool;
916 /* sprintf into a buffer, taint-unchecked */
919 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
921 gstring gs = { .size = siz, .ptr = 0, .s = buf };
924 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
930 /******************************************************************************/
931 /* Growable-string functions */
933 /* Create a growable-string with some preassigned space */
935 #define string_get_tainted(size, proto_mem) \
936 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
938 static inline gstring *
939 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
941 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
942 g->size = size; /*XXX would be good if we could see the actual alloc size */
948 #define string_get(size) \
949 string_get_trc((size), __FUNCTION__, __LINE__)
951 static inline gstring *
952 string_get_trc(unsigned size, const char * func, unsigned line)
954 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
957 /* NUL-terminate the C string in the growable-string, and return it. */
959 static inline uschar *
960 string_from_gstring(gstring * g)
968 len_string_from_gstring(gstring * g, uschar ** sp)
983 static inline uschar *
984 string_copy_from_gstring(gstring * g)
986 return g ? string_copyn(g->s, g->ptr) : NULL;
989 static inline unsigned
990 gstring_length(const gstring * g)
992 return g ? (unsigned)g->ptr : 0;
996 gstring_last_char(gstring * g)
998 return g->s[g->ptr-1];
1002 gstring_trim(gstring * g, unsigned amount)
1008 gstring_trim_trailing(gstring * g, uschar c)
1010 if (gstring_last_char(g) == c) gstring_trim(g, 1);
1014 gstring_reset(gstring * g)
1020 #define gstring_release_unused(g) \
1021 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
1024 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
1026 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
1030 /* plain string append to a growable-string */
1032 static inline gstring * string_cat(gstring * g, const uschar * s)
1035 static inline gstring *
1036 string_cat(gstring * g, const uschar * s)
1038 return string_catn(g, s, Ustrlen(s));
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 */
1078 static inline gstring *
1079 gstring_append(gstring * dest, gstring * item)
1081 return item ? string_catn(dest, item->s, item->ptr) : dest;
1085 # ifndef COMPILE_UTILITY
1086 /******************************************************************************/
1087 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1088 for them as the strings we proceed to copy from them meant they could not be
1089 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1090 we do have to take care over marking tainted all copied strings. A separate pool
1091 could be used and would handle that implicitly. */
1093 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1095 static inline dns_answer *
1096 store_get_dns_answer_trc(const uschar * func, unsigned line)
1098 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1101 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1104 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1106 store_free_3(dnsa, CCS func, line);
1110 /* Check for an RR being large enough. Return TRUE iff bad. */
1112 rr_bad_size(const dns_record * rr, size_t minbytes)
1114 return rr->size < minbytes;
1117 /* Check for an RR having further data beyond a given pointer.
1118 Return TRUE iff bad. */
1120 rr_bad_increment(const dns_record * rr, const uschar * ptr, size_t minbytes)
1122 return rr_bad_size(rr, ptr - rr->data + minbytes);
1125 /******************************************************************************/
1126 /* Routines with knowledge of spool layout */
1129 spool_pname_buf(uschar * buf, int len)
1131 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1134 static inline uschar *
1135 spool_dname(const uschar * purpose, uschar * subdir)
1137 return string_sprintf("%s/%s/%s/%s",
1138 spool_directory, queue_name, purpose, subdir);
1142 static inline uschar *
1143 spool_q_sname(const uschar * purpose, const uschar * q, const uschar * subdir)
1145 return string_sprintf("%s%s%s%s%s",
1148 *subdir ? "/" : "", subdir);
1151 static inline uschar *
1152 spool_sname(const uschar * purpose, const uschar * subdir)
1154 return spool_q_sname(purpose, queue_name, subdir);
1157 static inline uschar *
1158 spool_q_fname(const uschar * purpose, const uschar * q,
1159 const uschar * subdir, const uschar * fname, const uschar * suffix)
1161 return string_sprintf("%s/%s/%s/%s/%s%s",
1162 spool_directory, q, purpose, subdir, fname, suffix);
1165 static inline uschar *
1166 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1167 const uschar * suffix)
1169 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1170 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1171 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1172 uschar * buf = store_get(len, GET_UNTAINTED);
1173 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1174 spool_directory, queue_name, purpose, subdir, fname, suffix);
1177 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1182 set_subdir_str(uschar * subdir_str, const uschar * name,
1183 int search_sequence)
1185 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1186 ? name[MESSAGE_ID_TIME_LEN-1] : '\0';
1187 subdir_str[1] = '\0';
1190 /******************************************************************************/
1191 /* Message-ID format transition knowlege */
1194 is_new_message_id(const uschar * id)
1196 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN] == '-';
1200 is_old_message_id(const uschar * id)
1202 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN_OLD] == '-';
1205 static inline unsigned
1206 spool_data_start_offset(const uschar * id)
1208 if (is_old_message_id(id)) return SPOOL_DATA_START_OFFSET_OLD;
1209 return SPOOL_DATA_START_OFFSET;
1212 /******************************************************************************/
1213 /* Time calculations */
1215 /* Diff two times (later, earlier) returning diff in 1st arg */
1217 timediff(struct timeval * later, const struct timeval * earlier)
1219 later->tv_sec -= earlier->tv_sec;
1220 if ((later->tv_usec -= earlier->tv_usec) < 0)
1223 later->tv_usec += 1000*1000;
1228 timesince(struct timeval * diff, const struct timeval * then)
1230 gettimeofday(diff, NULL);
1231 timediff(diff, then);
1234 static inline uschar *
1235 string_timediff(const struct timeval * diff)
1237 static uschar buf[16];
1239 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1240 return readconf_printtime((int)diff->tv_sec);
1242 snprintf(CS buf, sizeof(buf), "%u.%03us",
1243 (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1248 static inline uschar *
1249 string_timesince(const struct timeval * then)
1251 struct timeval diff;
1252 timesince(&diff, then);
1253 return string_timediff(&diff);
1257 report_time_since(const struct timeval * t0, const uschar * where)
1259 # ifdef MEASURE_TIMING
1260 struct timeval diff;
1261 timesince(&diff, t0);
1262 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1263 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1269 testharness_pause_ms(int millisec)
1271 #ifndef MEASURE_TIMING
1272 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1276 /******************************************************************************/
1277 /* Taint-checked file opens */
1280 exim_open2(const char *pathname, int flags)
1282 if (!is_tainted(pathname)) return open(pathname, flags);
1283 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1288 exim_open(const char *pathname, int flags, mode_t mode)
1290 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1291 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1295 #ifdef EXIM_HAVE_OPENAT
1297 exim_openat(int dirfd, const char *pathname, int flags)
1299 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1300 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1305 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1307 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1308 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1314 static inline FILE *
1315 exim_fopen(const char *pathname, const char *mode)
1317 if (!is_tainted(pathname)) return fopen(pathname, mode);
1318 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1324 exim_opendir(const uschar * name)
1326 if (!is_tainted(name)) return opendir(CCS name);
1327 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1332 /******************************************************************************/
1333 # if !defined(COMPILE_UTILITY)
1335 /* We use the PID of the head process for a connection-id. Note that
1336 this is only for tracking a received connection and what it directly
1337 causes; there is no inttent to describe transport-initiated TCP connections.
1338 The value is intented to be a cookie usable for logging, and we might change
1339 the generator for it at any time. */
1342 set_connection_id(void)
1344 connection_id = string_sprintf("%lu", (u_long)getpid());
1348 /* Process manipulation */
1351 exim_fork(const unsigned char * purpose)
1354 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1355 if ((pid = fork()) == 0)
1357 f.daemon_listen = FALSE;
1358 process_purpose = purpose;
1359 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1363 testharness_pause_ms(100); /* let child work */
1364 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1371 child_open_exim(int * fdptr, const uschar * purpose)
1372 { return child_open_exim_function(fdptr, purpose); }
1375 child_open_exim2(int * fdptr, uschar * sender,
1376 uschar * sender_auth, const uschar * purpose)
1377 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1380 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1381 int *outfdptr, BOOL make_leader, const uschar * purpose)
1382 { return child_open_function(argv, envp, newumask, infdptr,
1383 outfdptr, make_leader, purpose);
1386 /* Return 1 if fd is usable per pollbits, else 0 */
1388 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1390 struct pollfd p = {.fd = fd, .events = pollbits};
1391 return poll(&p, 1, tmo_millisec);
1394 /******************************************************************************/
1395 /* Client-side smtp log string, for debug */
1398 smtp_debug_cmd_log_init(void)
1400 # ifndef DISABLE_CLIENT_CMD_LOG
1401 int old_pool = store_pool;
1402 store_pool = POOL_PERM;
1403 client_cmd_log = string_get_tainted(56, GET_TAINTED);
1404 *client_cmd_log->s = '\0';
1405 store_pool = old_pool;
1411 smtp_debug_cmd(const uschar * buf, int mode)
1413 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1414 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1416 # ifndef DISABLE_CLIENT_CMD_LOG
1418 int len = Ustrcspn(buf, " \n"), old_pool = store_pool;
1419 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1420 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1421 if (mode == SCMD_BUFFER)
1422 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1423 else if (mode == SCMD_MORE)
1424 client_cmd_log = string_catn(client_cmd_log, US"+", 1);
1425 store_pool = old_pool;
1431 /* This might be called both due to callout and then from delivery.
1432 Use memory that will not be released between those phases.
1435 smtp_debug_resp(const uschar * buf)
1437 # ifndef DISABLE_CLIENT_CMD_LOG
1438 int old_pool = store_pool;
1439 store_pool = POOL_PERM;
1440 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf,
1441 buf[3] == '-' ? 4 : 3);
1442 store_pool = old_pool;
1448 smtp_debug_cmd_report(void)
1450 # ifndef DISABLE_CLIENT_CMD_LOG
1451 if (client_cmd_log && *client_cmd_log->s)
1453 debug_printf("cmdlog: '%Y'\n", client_cmd_log);
1454 gstring_reset(client_cmd_log);
1457 debug_printf("cmdlog: (unset)\n");
1464 expand_max_rcpt(const uschar * str_max_rcpt)
1466 const uschar * s = expand_cstring(str_max_rcpt);
1468 return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
1471 /******************************************************************************/
1472 /* Queue-runner operations */
1475 is_onetime_qrun(void)
1477 return qrunners && !qrunners->next && qrunners->interval == 0;
1481 is_multiple_qrun(void)
1483 return qrunners && (qrunners->interval > 0 || qrunners->next);
1487 # endif /* !COMPILE_UTILITY */
1489 /******************************************************************************/
1490 #endif /* !MACRO_PREDEF */
1492 #endif /* _FUNCTIONS_H_ */
1496 /* End of functions.h */