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 void tls_turnaround(int, const uschar *, int);
77 extern int tls_ungetc(int);
78 #if defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT)
79 extern void tls_watch_discard_event(int);
80 extern void tls_watch_invalidate(void);
82 extern int tls_write(void *, const uschar *, size_t, BOOL);
83 extern uschar *tls_validate_require_cipher(void);
84 extern gstring *tls_version_report(gstring *);
87 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
90 #endif /*DISABLE_TLS*/
93 /* Everything else... */
95 extern acl_block *acl_read(uschar *(*)(void), uschar **);
96 extern int acl_check(int, const uschar *, uschar *, uschar **, uschar **);
97 extern uschar *acl_current_verb(void);
98 extern int acl_eval(int, uschar *, uschar **, uschar **);
99 extern uschar *acl_standalone_setvar(const uschar *, BOOL);
101 extern tree_node *acl_var_create(uschar *);
102 extern void acl_var_write(uschar *, uschar *, void *);
103 extern void add_driver_info(driver_info **, const driver_info *, size_t);
106 extern void assert_no_variables(void *, int, const char *, int);
107 extern int auth_call_pwcheck(uschar *, uschar **);
108 extern int auth_call_saslauthd(const uschar *, const uschar *,
109 const uschar *, const uschar *, uschar **);
110 extern int auth_check_serv_cond(auth_instance *);
111 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
112 extern int auth_client_item(void *, auth_instance *, const uschar **,
113 unsigned, int, uschar *, int);
116 extern int auth_get_data(uschar **, const uschar *, int);
117 extern int auth_get_no64_data(uschar **, uschar *);
118 extern int auth_prompt(const uschar *);
119 extern int auth_read_input(const uschar *);
120 extern gstring * auth_show_supported(gstring *);
121 extern uschar *authenticator_current_name(void);
123 extern gstring *authres_smtpauth(gstring *);
125 extern uschar *b64encode(const uschar *, int);
126 extern uschar *b64encode_taint(const uschar *, int, const void *);
127 extern int b64decode(const uschar *, uschar **, const void *);
128 extern int bdat_getc(unsigned);
129 extern uschar *bdat_getbuf(unsigned *);
130 extern BOOL bdat_hasc(void);
131 extern int bdat_ungetc(int);
132 extern void bdat_flush_data(void);
134 extern void bits_clear(unsigned int *, size_t, int *);
135 extern void bits_set(unsigned int *, size_t, int *);
137 extern void cancel_cutthrough_connection(BOOL, const uschar *);
138 extern gstring *cat_file(FILE *, gstring *, uschar *);
139 extern gstring *cat_file_tls(void *, gstring *, uschar *);
140 extern int check_host(void *, const uschar *, const uschar **, uschar **);
141 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
142 extern pid_t child_open_exim_function(int *, const uschar *);
143 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
145 extern pid_t child_open_function(uschar **, uschar **, int,
146 int *, int *, BOOL, const uschar *);
147 extern pid_t child_open_uid(const uschar **, const uschar **, int,
148 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
149 extern BOOL cleanup_environment(void);
150 extern void cutthrough_data_puts(uschar *, int);
151 extern void cutthrough_data_put_nl(void);
152 extern uschar *cutthrough_finaldot(void);
153 extern BOOL cutthrough_flush_send(void);
154 extern BOOL cutthrough_headers_send(void);
155 extern BOOL cutthrough_predata(void);
156 extern void release_cutthrough_connection(const uschar *);
158 extern void daemon_go(void);
159 #ifndef COMPILE_UTILITY
160 extern ssize_t daemon_client_sockname(struct sockaddr_un *, uschar **);
161 extern ssize_t daemon_notifier_sockname(struct sockaddr_un *);
164 #ifdef EXPERIMENTAL_DCC
165 extern int dcc_process(uschar **);
168 extern void debug_logging_activate(const uschar *, const uschar *);
169 extern void debug_logging_from_spool(const uschar *);
170 extern void debug_logging_stop(BOOL);
171 extern void debug_print_argv(const uschar **);
172 extern void debug_print_ids(uschar *);
173 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
174 extern void debug_print_string(uschar *);
175 extern void debug_print_tree(const char *, tree_node *);
176 extern void debug_vprintf(int, const char *, va_list);
177 extern void debug_pretrigger_setup(const uschar *);
178 extern void debug_pretrigger_discard(void);
179 extern void debug_print_socket(int);
180 extern void debug_trigger_fire(void);
182 extern void decode_bits(unsigned int *, size_t, int *,
183 const uschar *, bit_table *, int, uschar *, int);
184 extern void delete_pid_file(void);
185 extern void deliver_local(address_item *, BOOL);
186 extern address_item *deliver_make_addr(const uschar *, BOOL);
187 extern void delivery_log(int, address_item *, int, uschar *);
188 extern int deliver_message(const uschar *, BOOL, BOOL);
189 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
190 extern void deliver_set_expansions(address_item *);
191 extern int deliver_split_address(address_item *);
192 extern void deliver_succeeded(address_item *);
194 extern void delivery_re_exec(int);
196 extern void die_tainted(const uschar *, const uschar *, int);
197 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
198 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
199 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
200 extern uschar *dns_build_reverse(const uschar *);
201 extern time_t dns_expire_from_soa(dns_answer *, int);
202 extern void dns_init(BOOL, BOOL, BOOL);
203 extern BOOL dns_is_aa(const dns_answer *);
204 extern BOOL dns_is_secure(const dns_answer *);
205 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
206 extern void dns_pattern_init(void);
207 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
208 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
209 extern uschar *dns_text_type(int);
210 extern void dscp_list_to_stream(FILE *);
211 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
213 extern void enq_end(uschar *);
214 extern BOOL enq_start(uschar *, unsigned);
215 #ifndef DISABLE_EVENT
216 extern uschar *event_raise(const uschar *, const uschar *, const uschar *, int *);
217 extern void msg_event_raise(const uschar *, const address_item *);
220 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
221 extern const uschar * exim_errstr(int);
222 extern void exim_exit(int) NORETURN;
223 extern void exim_gettime(struct timeval *);
224 extern void exim_nullstd(void);
225 extern void exim_setugid(uid_t, gid_t, BOOL, const uschar *);
226 extern void exim_underbar_exit(int) NORETURN;
227 extern void exim_wait_tick(struct timeval *, int);
228 extern int exp_bool(address_item *,
229 const uschar *, const uschar *, unsigned, uschar *, BOOL bvalue,
230 const uschar *, BOOL *);
231 extern BOOL expand_check_condition(const uschar *, const uschar *, const uschar *);
232 extern uschar *expand_file_big_buffer(const uschar *);
233 extern uschar *expand_string(uschar *); /* public, cannot make const */
234 extern const uschar *expand_string_2(const uschar *, BOOL *);
235 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
236 extern uschar *expand_getkeyed(const uschar *, const uschar *);
238 extern uschar *expand_hide_passwords(uschar * );
239 extern uschar *expand_string_copy(const uschar *);
240 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
241 extern void modify_variable(uschar *, void *);
243 extern BOOL fd_ready(int, time_t);
244 extern BOOL filter_runtest(int, const uschar *, BOOL, BOOL);
246 extern uschar * fn_hdrs_added(void);
247 extern void force_fd(int, int);
249 extern void header_add(int, const char *, ...);
250 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
251 extern int header_checkname(header_line *, BOOL);
252 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
253 extern int host_address_extract_port(uschar *);
254 extern uschar *host_and_ident(BOOL);
255 extern int host_aton(const uschar *, int *);
256 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
257 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
258 extern void host_build_log_info(void);
259 extern void host_build_sender_fullhost(void);
260 extern int host_find_byname(host_item *, const uschar *, int,
261 const uschar **, BOOL);
262 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
263 uschar *, const dnssec_domains *, const uschar **, BOOL *);
264 extern ip_address_item *host_find_interfaces(void);
265 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
266 extern BOOL host_is_tls_on_connect_port(int);
267 extern int host_item_get_port(host_item *);
268 extern void host_mask(int, int *, int);
269 extern int host_name_lookup(void);
270 extern int host_nmtoa(int, const int *, int, uschar *, int);
271 extern uschar *host_ntoa(int, const void *, uschar *, int *);
272 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
274 extern uschar *imap_utf7_encode(uschar *, const uschar *,
275 uschar, uschar *, uschar **);
277 extern void invert_address(uschar *, uschar *);
278 extern int ip_addr(void *, int, const uschar *, int);
279 extern int ip_bind(int, int, uschar *, int);
280 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
281 extern int ip_connectedsocket(int, const uschar *, int, int,
282 int, host_item *, uschar **, const blob *);
283 extern int ip_get_address_family(int);
284 extern void ip_keepalive(int, const uschar *, BOOL);
285 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
286 extern int ip_socket(int, int);
288 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
289 extern int ip_unixsocket(const uschar *, uschar **);
290 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
292 extern int ipv6_nmtoa(int *, uschar *);
294 extern const uschar *local_part_quote(const uschar *);
295 extern int log_open_as_exim(const uschar * const);
296 extern void log_close_all(void);
297 extern const lookup_info * lookup_with_acq_num(unsigned);
298 #ifdef LOOKUP_MODULE_DIR
299 extern BOOL lookup_one_mod_load(const uschar *, uschar **);
303 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
304 extern BOOL macro_read_assignment(uschar *);
305 extern uschar *macros_expand(int, int *, BOOL *);
306 extern void mainlog_close(void);
307 #ifdef WITH_CONTENT_SCAN
308 extern int malware(const uschar *, BOOL, int);
309 extern int malware_in_file(const uschar *);
310 extern void malware_init(void);
311 extern gstring * malware_show_supported(gstring *);
313 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
314 unsigned int *, int, int, const uschar **);
315 extern int match_address_list_basic(const uschar *, const uschar **, int);
316 extern int match_check_list(const uschar * const *, int, tree_node **,
317 unsigned int **, int(*)(void *, const uschar *,
318 const uschar **, uschar **),
319 void *, int, const uschar *, const uschar **);
320 extern int match_isinlist(const uschar *, const uschar * const *, int,
321 tree_node **, unsigned int *, int, BOOL, const uschar **);
322 extern int match_check_string(const uschar *, const uschar *, int, mcs_flags,
325 extern void message_start(void);
326 extern void message_tidyup(void);
327 extern void md5_end(md5 *, const uschar *, int, uschar *);
328 extern void md5_mid(md5 *, const uschar *);
329 extern void md5_start(md5 *);
330 extern void millisleep(int);
331 #ifdef WITH_CONTENT_SCAN
332 struct mime_boundary_context;
333 extern int mime_acl_check(uschar *acl, FILE *f,
334 struct mime_boundary_context *, uschar **, uschar **);
335 extern int mime_decode(const uschar **);
336 extern ssize_t mime_decode_base64(FILE *, FILE *, uschar *);
337 extern int mime_regex(const uschar **, BOOL);
338 extern void mime_set_anomaly(int);
341 extern gstring *misc_mod_authres(gstring *);
342 extern int misc_mod_conn_init(const uschar *, const uschar *);
343 extern misc_module_info * misc_mod_find(const uschar * modname, uschar **);
344 extern misc_module_info * misc_mod_findonly(const uschar * modname);
345 extern int misc_mod_msg_init(void);
346 extern void misc_mod_smtp_reset(void);
348 extern uschar *moan_check_errorcopy(const uschar *);
349 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
351 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
352 extern BOOL moan_send_message(const uschar *, int, error_block *eblock,
353 header_line *, FILE *, uschar *);
354 extern void moan_tell_someone(uschar *, address_item *,
355 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
356 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
357 extern void moan_write_from(FILE *);
358 extern void moan_write_references(FILE *, uschar *);
359 #ifdef LOOKUP_MODULE_DIR
360 //extern void mod_load_check(const uschar *);
362 extern FILE *modefopen(const uschar *, const char *, mode_t);
364 extern int open_cutthrough_connection( address_item * addr );
366 extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
368 extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
369 const uschar *, const uschar *, error_block **);
370 extern uschar *parse_find_address_end(const uschar *, BOOL);
371 extern const uschar *parse_find_at(const uschar *);
372 extern const uschar *parse_fix_phrase(const uschar *, int);
373 extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
374 extern const uschar *parse_quote_2047(const uschar *, int, const uschar *,
376 extern const uschar *parse_date_time(const uschar *str, time_t *t);
377 extern void priv_drop_temp(const uid_t, const gid_t);
378 extern void priv_restore(void);
380 extern BOOL proxy_protocol_host(void);
381 extern void proxy_protocol_setup(void);
384 extern BOOL queue_action(const uschar *, int, const uschar **, int, int);
385 extern void queue_check_only(void);
386 extern unsigned queue_count(void);
387 extern unsigned queue_count_cached(void);
388 extern void queue_list(int, const uschar **, int);
389 #ifndef DISABLE_QUEUE_RAMP
390 extern void queue_notify_daemon(const uschar * hostname);
392 extern void queue_run(qrunner *, const uschar *, const uschar *, BOOL);
394 extern int random_number(int);
395 extern const uschar *rc_to_string(int);
396 extern int rda_interpret(redirect_block *, int, const uschar *,
397 const sieve_block *, const ugid_block *, address_item **,
398 uschar **, error_block **, int *, const uschar *);
399 extern int rda_is_filter(const uschar *);
400 extern BOOL readconf_depends(driver_instance *, uschar *);
401 extern void readconf_driver_init(driver_instance **, driver_info **, int,
402 void *, int, optionlist *, int, const uschar *);
403 extern const uschar *readconf_find_option(const void *);
404 extern void readconf_main(BOOL);
405 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
406 extern BOOL readconf_print(const uschar *, const uschar *, BOOL);
407 extern uschar *readconf_printtime(int);
408 extern const uschar *readconf_readname(uschar *, int, const uschar *);
409 extern int readconf_readtime(const uschar *, int, BOOL);
410 extern void readconf_rest(void);
411 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
412 extern void readconf_save_config(const uschar *);
413 extern void read_message_body(BOOL);
414 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
415 extern BOOL receive_check_fs(int);
416 extern BOOL receive_check_set_sender(const uschar *);
417 extern BOOL receive_msg(BOOL);
418 extern int_eximarith_t receive_statvfs(BOOL, int *);
419 extern void receive_swallow_smtp(void);
420 extern int recv_fd_from_sock(int);
421 #ifdef WITH_CONTENT_SCAN
422 extern int regex(const uschar **, BOOL);
423 extern void regex_vars_clear(void);
425 extern void regex_at_daemon(const uschar *);
426 extern BOOL regex_match(const pcre2_code *, const uschar *, int, uschar **);
427 extern BOOL regex_match_and_setup(const pcre2_code *, const uschar *, int, int);
428 extern const pcre2_code *regex_compile(const uschar *, mcs_flags, uschar **,
429 pcre2_compile_context *);
430 extern const pcre2_code *regex_must_compile(const uschar *, mcs_flags, BOOL);
432 extern void retry_add_item(address_item *, const uschar *, int);
433 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
434 const uschar **, const uschar **);
435 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
436 extern const uschar *retry_host_key_build(const host_item *, BOOL,
438 extern BOOL retry_ultimate_address_timeout(const uschar *, const uschar *,
439 dbdata_retry *, time_t);
440 extern void retry_update(address_item **, address_item **, address_item **);
441 extern const uschar *rewrite_address(const uschar *, BOOL, BOOL, rewrite_rule *, int);
442 extern const uschar *rewrite_address_qualify(const uschar *, BOOL);
443 extern header_line *rewrite_header(header_line *,
444 const uschar *, const uschar *,
445 rewrite_rule *, int, BOOL);
446 extern const uschar *rewrite_one(const uschar *, int, BOOL *, BOOL, uschar *,
448 extern void rewrite_test(const uschar *);
449 extern uschar *rfc2047_decode2(uschar *, BOOL, const uschar *, int, int *,
451 extern int route_address(address_item *, address_item **, address_item **,
452 address_item **, address_item **, int);
453 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
454 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
455 extern BOOL route_findgroup(uschar *, gid_t *);
456 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
457 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
459 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
460 struct passwd **, uid_t *, uschar **);
461 extern void route_init(void);
462 extern gstring * route_show_supported(gstring *);
463 extern void route_tidyup(void);
464 extern uschar *router_current_name(void);
466 extern uschar *search_args(const lookup_info *, uschar *, uschar *, uschar **,
468 extern uschar *search_find(void *, const uschar *, const uschar *, int,
469 const uschar *, int, int, int *, const uschar *);
470 extern const lookup_info * search_findtype(const uschar *, int);
471 extern const lookup_info * search_findtype_partial(const uschar *, int *,
472 const uschar **, int *, int *, const uschar **);
473 extern void *search_open(const uschar *, const lookup_info *, int,
475 extern void search_tidyup(void);
476 extern BOOL send_fd_over_socket(int, int);
477 extern uschar *sender_helo_verified_boolstr(void);
478 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
479 extern void sha1_end(hctx *, const uschar *, int, uschar *);
480 extern void sha1_mid(hctx *, const uschar *);
481 extern void sha1_start(hctx *);
482 extern void sigalrm_handler(int);
483 extern void single_queue_run(qrunner *, const uschar *, const uschar *);
484 extern int smtp_boundsock(smtp_connect_args *);
485 extern void smtp_closedown(uschar *);
486 extern void smtp_command_timeout_exit(void) NORETURN;
487 extern void smtp_command_sigterm_exit(void) NORETURN;
488 extern void smtp_data_timeout_exit(void) NORETURN;
489 extern void smtp_data_sigint_exit(void) NORETURN;
490 extern void smtp_deliver_init(void);
491 extern uschar *smtp_cmd_hist(void);
492 extern int smtp_connect(smtp_connect_args *, const blob *);
493 extern int smtp_feof(void);
494 extern int smtp_ferror(void);
495 extern uschar *smtp_get_connection_info(void);
496 extern BOOL smtp_get_interface(uschar *, int, address_item *,
497 uschar **, uschar *);
498 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
499 extern int smtp_getc(unsigned);
500 extern uschar *smtp_getbuf(unsigned *);
501 extern void smtp_get_cache(unsigned);
502 extern BOOL smtp_hasc(void);
503 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
504 extern void smtp_log_no_mail(void);
505 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
506 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int, const uschar *) NORETURN;
507 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
508 extern void *smtp_reset(void *);
509 extern void smtp_respond(uschar *, int, BOOL, uschar *);
510 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
511 extern void smtp_port_for_connect(host_item *, int);
512 extern void smtp_send_prohibition_message(int, uschar *);
513 extern int smtp_setup_msg(void);
514 extern int smtp_sock_connect(smtp_connect_args *, int, const blob *);
515 extern BOOL smtp_start_session(void);
516 extern int smtp_ungetc(int);
517 extern void smtp_verify_feed(const uschar *, unsigned);
518 extern BOOL smtp_verify_helo(void);
519 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
520 #ifdef WITH_CONTENT_SCAN
521 extern int spam(const uschar **);
522 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
524 extern void spool_clear_header_globals(void);
525 extern int spool_has_one_undelivered_dom(const uschar *);
526 extern BOOL spool_move_message(const uschar *, const uschar *, const uschar *, const uschar *);
527 extern int spool_open_datafile(const uschar *);
528 extern int spool_open_temp(uschar *);
529 extern int spool_read_header(uschar *, BOOL, BOOL);
530 extern uschar *spool_sender_from_msgid(const uschar *);
531 extern int spool_write_header(const uschar *, int, uschar **);
532 extern int stdin_getc(unsigned);
533 extern int stdin_feof(void);
534 extern int stdin_ferror(void);
535 extern BOOL stdin_hasc(void);
536 extern int stdin_ungetc(int);
538 extern void stackdump(void);
539 extern void store_exit(void);
540 extern void store_init(void);
541 extern void store_writeprotect(int);
543 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
544 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
545 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
546 extern gstring *string_append_listele_fmt(gstring *, uschar, BOOL, const char *, ...) WARN_UNUSED_RESULT;
547 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
548 extern uschar *string_base62_32(unsigned long int);
549 extern uschar *string_base62_64(unsigned long int);
550 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
551 extern int string_compare_by_pointer(const void *, const void *);
552 extern uschar *string_copy_dnsdomain(uschar *);
553 extern uschar *string_copy_malloc(const uschar *);
554 extern uschar *string_dequote(const uschar **);
555 extern uschar *string_format_size(int, uschar *);
556 extern int string_interpret_escape(const uschar **);
557 extern int string_is_ip_address(const uschar *, int *);
558 extern int string_is_ip_addressX(const uschar *, int *, const uschar **);
560 extern BOOL string_is_utf8(const uschar *);
562 extern const uschar *string_printing2(const uschar *, int);
563 extern uschar *string_split_message(uschar *);
564 extern uschar *string_unprinting(uschar *);
566 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
567 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
568 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
569 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
570 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
573 #define string_format(buf, siz, fmt, ...) \
574 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
575 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
576 const char *, ...) ALMOST_PRINTF(5,6);
578 #define string_vformat(g, flgs, fmt, ap) \
579 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
580 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
581 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
582 unsigned, unsigned, const char *, va_list);
584 #define string_open_failed(fmt, ...) \
585 string_open_failed_trc(US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
586 extern uschar *string_open_failed_trc(const uschar *, unsigned,
587 const char *, ...) PRINTF_FUNCTION(3,4);
589 #define string_nextinlist(lp, sp, b, l) \
590 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
591 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
592 const uschar * func, int line);
594 extern int strcmpic(const uschar *, const uschar *);
595 extern int strncmpic(const uschar *, const uschar *, int);
596 extern uschar *strstric(uschar *, uschar *, BOOL);
597 extern const uschar *strstric_c(const uschar *, const uschar *, BOOL);
599 extern int test_harness_fudged_queue_time(int);
600 extern void tcp_init(void);
601 #ifdef EXIM_TFO_PROBE
602 extern void tfo_probe(void);
604 extern void tls_modify_variables(tls_support *);
605 extern uschar *tod_stamp(int);
607 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
609 extern uschar *transport_current_name(void);
610 extern void transport_do_pass_socket(const uschar *, const uschar *,
611 const uschar *, uschar *, int);
612 extern void transport_init(void);
613 extern const uschar *transport_rcpt_address(address_item *, BOOL);
614 extern BOOL transport_set_up_command(const uschar ***, const uschar *,
615 unsigned, int, address_item *, const uschar *, uschar **);
616 extern void transport_update_waiting(host_item *, const uschar *);
617 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
618 extern void transport_write_reset(int);
619 extern BOOL transport_write_string(int, const char *, ...);
620 extern BOOL transport_headers_send(transport_ctx *,
621 BOOL (*)(transport_ctx *, const uschar *, int));
622 extern gstring * transport_show_supported(gstring *);
623 extern BOOL transport_write_message(transport_ctx *, int);
624 extern void tree_add_duplicate(const uschar *, address_item *);
625 extern void tree_add_nonrecipient(const uschar *);
626 extern void tree_add_unusable(const host_item *);
627 extern void tree_dup(tree_node **, tree_node *);
628 extern int tree_insertnode(tree_node **, tree_node *);
629 extern tree_node *tree_search(tree_node *, const uschar *);
630 extern void tree_write(tree_node *, FILE *);
631 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
633 #ifdef WITH_CONTENT_SCAN
634 extern void unspool_mbox(void);
637 extern gstring *utf8_version_report(gstring *);
640 extern int vaguely_random_number(int);
642 extern int vaguely_random_number_fallback(int);
644 extern int verify_address(address_item *, FILE *, int, int, int, int,
645 uschar *, uschar *, BOOL *);
646 extern int verify_check_dnsbl(int, const uschar **, uschar **);
647 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
648 uschar *, uschar *, int, int *);
649 extern int verify_check_headers(uschar **);
650 extern int verify_check_header_names_ascii(uschar **);
651 extern int verify_check_host(uschar **);
652 extern int verify_check_notblind(BOOL);
653 extern int verify_check_given_host(const uschar **, const host_item *);
654 extern int verify_check_this_host(const uschar **, unsigned int *,
655 const uschar*, const uschar *, const uschar **);
656 extern address_item *verify_checked_sender(const uschar *);
657 extern void verify_get_ident(int);
658 extern void verify_quota(uschar *);
659 extern int verify_quota_call(const uschar *, int, int, uschar **);
660 extern BOOL verify_sender(int *, uschar **);
661 extern BOOL verify_sender_preliminary(int *, uschar **);
662 extern void version_init(void);
664 extern BOOL write_chunk(transport_ctx *, const uschar *, int);
665 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
666 extern uschar *wrap_header(const uschar *, unsigned, unsigned, const uschar *, unsigned);
668 #ifdef EXPERIMENTAL_XCLIENT
669 extern uschar * xclient_smtp_command(uschar *, int *, BOOL *);
670 extern gstring * xclient_smtp_advertise_str(gstring *);
672 extern uschar *xtextencode(uschar *, int);
673 extern int xtextdecode(uschar *, uschar **);
676 /******************************************************************************/
677 /* Predicate: if an address is in a tainted pool.
678 By extension, a variable pointing to this address is tainted.
682 is_tainted(const void * p)
684 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
688 extern BOOL is_tainted_fn(const void *);
689 return is_tainted_fn(p);
694 is_incompatible(const void * old, const void * new)
696 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
700 extern BOOL is_incompatible_fn(const void *, const void *);
701 return is_incompatible_fn(old, new);
705 /******************************************************************************/
706 /* String functions */
707 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
709 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
710 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
712 return US strcat(CS dst, CCS src);
714 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
716 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
717 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
719 return US strcpy(CS dst, CCS src);
721 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
723 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
724 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
726 return US strncat(CS dst, CCS src, n);
728 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
730 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
731 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
733 return US strncpy(CS dst, CCS src, n);
735 /*XXX will likely need unchecked copy also */
738 /* Advance the string pointer given over any whitespace.
739 Return the next char as there's enough places using it to be useful. */
741 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
743 static inline uschar skip_whitespace(const uschar ** sp)
744 { while (isspace(**sp)) (*sp)++; return **sp; }
746 /* Ditto, non-whitespace */
748 #define Uskip_nonwhite(sp) skip_nonwhite(CUSS sp)
749 static inline uschar skip_nonwhite(const uschar ** sp)
750 { while (**sp && !isspace(**sp)) (*sp)++; return **sp; }
753 /******************************************************************************/
755 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
756 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
757 chown(<exim-uid>, <exim-gid>).
759 Probably because the idmapping is broken, misconfigured or set up in
760 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
761 case of misconfiguration, or if there are more such broken systems
762 out, I try to impose as least impact as possible and for now just write
763 a panic log entry pointing to the bug report. You're encouraged to
764 contact the developers, if you experience this issue.
766 fd the file descriptor (or -1 if not valid)
767 name the file name for error messages or for file operations,
772 returns 0 on success, -1 on failure */
775 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
777 return fchown(fd, owner, group)
778 ? exim_chown_failure(fd, name, owner, group) : 0;
782 exim_chown(const uschar *name, uid_t owner, gid_t group)
784 return chown(CCS name, owner, group)
785 ? exim_chown_failure(-1, name, owner, group) : 0;
787 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
789 /******************************************************************************/
790 /* String functions */
792 #if !defined(MACRO_PREDEF)
793 /*************************************************
794 * Copy and save string *
795 *************************************************/
797 /* This function assumes that memcpy() is faster than strcpy().
798 The result is explicitly nul-terminated.
801 static inline uschar *
802 string_copyn_taint_trc(const uschar * s, unsigned len,
803 const void * proto_mem, const char * func, int line)
806 unsigned slen = Ustrlen(s);
807 if (len > slen) len = slen;
808 ss = store_get_3(len + 1, proto_mem, func, line);
814 static inline uschar *
815 string_copy_taint_trc(const uschar * s, const void * proto_mem, const char * func, int line)
816 { return string_copyn_taint_trc(s, Ustrlen(s), proto_mem, func, line); }
818 static inline uschar *
819 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
820 { return string_copyn_taint_trc(s, len, s, func, line); }
821 static inline uschar *
822 string_copy_trc(const uschar * s, const char * func, int line)
823 { return string_copy_taint_trc(s, s, func, line); }
826 /* String-copy functions explicitly setting the taint status */
828 #define string_copyn_taint(s, len, proto_mem) \
829 string_copyn_taint_trc((s), (len), (proto_mem), __FUNCTION__, __LINE__)
830 #define string_copy_taint(s, proto_mem) \
831 string_copy_taint_trc((s), (proto_mem), __FUNCTION__, __LINE__)
833 /* Simple string-copy functions maintaining the taint */
835 #define string_copyn(s, len) \
836 string_copyn_trc((s), (len), __FUNCTION__, __LINE__)
837 #define string_copy(s) \
838 string_copy_trc((s), __FUNCTION__, __LINE__)
841 /*************************************************
842 * Copy, lowercase and save string *
843 *************************************************/
846 Argument: string to copy
847 Returns: copy of string in new store, with letters lowercased
850 static inline uschar *
851 string_copylc(const uschar * s)
853 uschar * ss = store_get(Ustrlen(s) + 1, s);
855 while (*s) *p++ = tolower(*s++);
862 /*************************************************
863 * Copy, lowercase, and save string, given length *
864 *************************************************/
866 /* It is assumed the data contains no zeros. A zero is added
871 n number of characters
873 Returns: copy of string in new store, with letters lowercased
876 static inline uschar *
877 string_copynlc(uschar * s, int n)
879 uschar * ss = store_get(n + 1, s);
881 while (n-- > 0) *p++ = tolower(*s++);
887 # ifndef COMPILE_UTILITY
888 /*************************************************
889 * Copy and save string in longterm store *
890 *************************************************/
892 /* This function assumes that memcpy() is faster than strcpy().
894 Argument: string to copy
895 Returns: copy of string in new store
898 static inline uschar *
899 string_copy_perm(const uschar *s, BOOL force_taint)
901 int old_pool = store_pool;
902 int len = Ustrlen(s) + 1;
905 store_pool = POOL_PERM;
906 ss = store_get(len, force_taint ? GET_TAINTED : s);
908 store_pool = old_pool;
915 /* sprintf into a buffer, taint-unchecked */
918 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
920 gstring gs = { .size = siz, .ptr = 0, .s = buf };
923 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
929 /******************************************************************************/
930 /* Growable-string functions */
932 /* Create a growable-string with some preassigned space */
934 #define string_get_tainted(size, proto_mem) \
935 string_get_tainted_trc((size), (proto_mem), __FUNCTION__, __LINE__)
937 static inline gstring *
938 string_get_tainted_trc(unsigned size, const void * proto_mem, const char * func, unsigned line)
940 gstring * g = store_get_3(sizeof(gstring) + size, proto_mem, func, line);
941 g->size = size; /*XXX would be good if we could see the actual alloc size */
947 #define string_get(size) \
948 string_get_trc((size), __FUNCTION__, __LINE__)
950 static inline gstring *
951 string_get_trc(unsigned size, const char * func, unsigned line)
953 return string_get_tainted_trc(size, GET_UNTAINTED, func, line);
956 /* NUL-terminate the C string in the growable-string, and return it. */
958 static inline uschar *
959 string_from_gstring(gstring * g)
967 len_string_from_gstring(gstring * g, uschar ** sp)
982 static inline uschar *
983 string_copy_from_gstring(gstring * g)
985 return g ? string_copyn(g->s, g->ptr) : NULL;
988 static inline unsigned
989 gstring_length(const gstring * g)
991 return g ? (unsigned)g->ptr : 0;
995 gstring_last_char(gstring * g)
997 return g && g->ptr > 0 ? g->s[g->ptr-1] : '\0';
1001 gstring_trim(gstring * g, unsigned amount)
1007 gstring_trim_trailing(gstring * g, uschar c)
1009 if (gstring_last_char(g) == c) gstring_trim(g, 1);
1013 gstring_reset(gstring * g)
1019 #define gstring_release_unused(g) \
1020 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
1023 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
1025 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
1029 /* plain string append to a growable-string */
1031 static inline gstring * string_cat(gstring * g, const uschar * s)
1034 static inline gstring *
1035 string_cat(gstring * g, const uschar * s)
1037 return string_catn(g, s, Ustrlen(s));
1041 /* sprintf-append to a growable-string */
1043 #define string_fmt_append(g, fmt, ...) \
1044 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1045 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
1047 #define string_fmt_append_f(g, flgs, fmt, ...) \
1048 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
1049 flgs, fmt, __VA_ARGS__)
1051 static inline gstring *
1052 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
1053 unsigned flags, const char *format, ...)
1056 va_start(ap, format);
1057 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
1064 /* Copy the content of a string to tainted memory. The proto_mem arg
1065 will always be tainted, and suitable as a prototype. */
1068 gstring_rebuffer(gstring * g, const void * proto_mem)
1070 uschar * s = store_get_3(g->size, proto_mem, __FUNCTION__, __LINE__);
1071 memcpy(s, g->s, g->ptr);
1075 /* Append one gstring to another */
1077 static inline gstring *
1078 gstring_append(gstring * dest, gstring * item)
1081 ? dest ? string_catn(dest, item->s, item->ptr) : item
1086 # ifndef COMPILE_UTILITY
1087 /******************************************************************************/
1088 /* Use store_malloc for DNSA structs, and explicit frees. Using the same pool
1089 for them as the strings we proceed to copy from them meant they could not be
1090 released, hence blowing 64k for every DNS lookup. That mounted up. With malloc
1091 we do have to take care over marking tainted all copied strings. A separate pool
1092 could be used and would handle that implicitly. */
1094 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
1096 static inline dns_answer *
1097 store_get_dns_answer_trc(const uschar * func, unsigned line)
1099 return store_malloc_3(sizeof(dns_answer), CCS func, line);
1102 #define store_free_dns_answer(dnsa) store_free_dns_answer_trc(dnsa, CUS __FUNCTION__, __LINE__)
1105 store_free_dns_answer_trc(dns_answer * dnsa, const uschar * func, unsigned line)
1107 store_free_3(dnsa, CCS func, line);
1111 /* Check for an RR being large enough. Return TRUE iff bad. */
1113 rr_bad_size(const dns_record * rr, size_t minbytes)
1115 return rr->size < minbytes;
1118 /* Check for an RR having further data beyond a given pointer.
1119 Return TRUE iff bad. */
1121 rr_bad_increment(const dns_record * rr, const uschar * ptr, size_t minbytes)
1123 return rr_bad_size(rr, ptr - rr->data + minbytes);
1126 /******************************************************************************/
1127 /* Routines with knowledge of spool layout */
1130 spool_pname_buf(uschar * buf, int len)
1132 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
1135 static inline uschar *
1136 spool_dname(const uschar * purpose, uschar * subdir)
1138 return string_sprintf("%s/%s/%s/%s",
1139 spool_directory, queue_name, purpose, subdir);
1143 static inline uschar *
1144 spool_q_sname(const uschar * purpose, const uschar * q, const uschar * subdir)
1146 return string_sprintf("%s%s%s%s%s",
1149 *subdir ? "/" : "", subdir);
1152 static inline uschar *
1153 spool_sname(const uschar * purpose, const uschar * subdir)
1155 return spool_q_sname(purpose, queue_name, subdir);
1158 static inline uschar *
1159 spool_q_fname(const uschar * purpose, const uschar * q,
1160 const uschar * subdir, const uschar * fname, const uschar * suffix)
1162 return string_sprintf("%s/%s/%s/%s/%s%s",
1163 spool_directory, q, purpose, subdir, fname, suffix);
1166 static inline uschar *
1167 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
1168 const uschar * suffix)
1170 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1171 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1172 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1173 uschar * buf = store_get(len, GET_UNTAINTED);
1174 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1175 spool_directory, queue_name, purpose, subdir, fname, suffix);
1178 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1183 set_subdir_str(uschar * subdir_str, const uschar * name,
1184 int search_sequence)
1186 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1187 ? name[MESSAGE_ID_TIME_LEN-1] : '\0';
1188 subdir_str[1] = '\0';
1191 /******************************************************************************/
1192 /* Message-ID format transition knowlege */
1195 is_new_message_id(const uschar * id)
1197 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN] == '-';
1201 is_old_message_id(const uschar * id)
1203 return id[MESSAGE_ID_TIME_LEN + 1 + MESSAGE_ID_PID_LEN_OLD] == '-';
1206 static inline unsigned
1207 spool_data_start_offset(const uschar * id)
1209 if (is_old_message_id(id)) return SPOOL_DATA_START_OFFSET_OLD;
1210 return SPOOL_DATA_START_OFFSET;
1213 /******************************************************************************/
1214 /* Time calculations */
1216 /* Diff two times (later, earlier) returning diff in 1st arg */
1218 timediff(struct timeval * later, const struct timeval * earlier)
1220 later->tv_sec -= earlier->tv_sec;
1221 if ((later->tv_usec -= earlier->tv_usec) < 0)
1224 later->tv_usec += 1000*1000;
1229 timesince(struct timeval * diff, const struct timeval * then)
1231 gettimeofday(diff, NULL);
1232 timediff(diff, then);
1235 static inline uschar *
1236 string_timediff(const struct timeval * diff)
1238 static uschar buf[16];
1240 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1241 return readconf_printtime((int)diff->tv_sec);
1243 snprintf(CS buf, sizeof(buf), "%u.%03us",
1244 (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1249 static inline uschar *
1250 string_timesince(const struct timeval * then)
1252 struct timeval diff;
1253 timesince(&diff, then);
1254 return string_timediff(&diff);
1258 report_time_since(const struct timeval * t0, const uschar * where)
1260 # ifdef MEASURE_TIMING
1261 struct timeval diff;
1262 timesince(&diff, t0);
1263 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1264 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1270 testharness_pause_ms(int millisec)
1272 #ifndef MEASURE_TIMING
1273 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1277 /******************************************************************************/
1278 /* Taint-checked file opens. Return values/errno per open(2). */
1281 exim_open2(const char *pathname, int flags)
1283 if (!is_tainted(pathname)) return open(pathname, flags);
1284 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1289 exim_open(const char *pathname, int flags, mode_t mode)
1291 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1292 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1296 #ifdef EXIM_HAVE_OPENAT
1298 exim_openat(int dirfd, const char *pathname, int flags)
1300 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1301 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1306 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1308 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1309 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1315 static inline FILE *
1316 exim_fopen(const char *pathname, const char *mode)
1318 if (!is_tainted(pathname)) return fopen(pathname, mode);
1319 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1325 exim_opendir(const uschar * name)
1327 if (!is_tainted(name)) return opendir(CCS name);
1328 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1333 /******************************************************************************/
1334 # if !defined(COMPILE_UTILITY)
1336 /* We use the PID of the head process for a connection-id. Note that
1337 this is only for tracking a received connection and what it directly
1338 causes; there is no inttent to describe transport-initiated TCP connections.
1339 The value is intented to be a cookie usable for logging, and we might change
1340 the generator for it at any time. */
1343 set_connection_id(void)
1345 connection_id = string_sprintf("%lu", (u_long)getpid());
1349 /* Process manipulation */
1352 exim_fork(const unsigned char * purpose)
1356 debug_printf_indent("%s forking for %s\n", process_purpose, purpose);
1357 if ((pid = fork()) == 0)
1359 f.daemon_listen = FALSE;
1360 process_purpose = purpose;
1361 DEBUG(D_any) debug_printf_indent("postfork: %s\n", purpose);
1365 testharness_pause_ms(100); /* let child work */
1366 DEBUG(D_any) debug_printf_indent("%s forked for %s: %d\n",
1367 process_purpose, purpose, (int)pid);
1374 child_open_exim(int * fdptr, const uschar * purpose)
1375 { return child_open_exim_function(fdptr, purpose); }
1378 child_open_exim2(int * fdptr, uschar * sender,
1379 uschar * sender_auth, const uschar * purpose)
1380 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1383 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1384 int *outfdptr, BOOL make_leader, const uschar * purpose)
1385 { return child_open_function(argv, envp, newumask, infdptr,
1386 outfdptr, make_leader, purpose);
1389 /* Return 1 if fd is usable per pollbits, else 0 */
1391 poll_one_fd(int fd, short pollbits, int tmo_millisec)
1393 struct pollfd p = {.fd = fd, .events = pollbits};
1394 return poll(&p, 1, tmo_millisec);
1397 /******************************************************************************/
1398 /* Client-side smtp log string, for debug */
1401 smtp_debug_cmd_log_init(void)
1403 # ifndef DISABLE_CLIENT_CMD_LOG
1404 int old_pool = store_pool;
1405 store_pool = POOL_PERM;
1406 client_cmd_log = string_get_tainted(56, GET_TAINTED);
1407 *client_cmd_log->s = '\0';
1408 store_pool = old_pool;
1414 smtp_debug_cmd(const uschar * buf, int mode)
1416 HDEBUG(D_transport|D_acl|D_v) debug_printf_indent(" SMTP%c> %s\n",
1417 mode == SCMD_BUFFER ? '|' : mode == SCMD_MORE ? '+' : '>', buf);
1419 # ifndef DISABLE_CLIENT_CMD_LOG
1421 int len = Ustrcspn(buf, " \n"), old_pool = store_pool;
1422 store_pool = POOL_PERM; /* Main pool ACL allocations eg. callouts get released */
1423 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf, MIN(len, 8));
1424 if (mode == SCMD_BUFFER)
1425 client_cmd_log = string_catn(client_cmd_log, US"|", 1);
1426 else if (mode == SCMD_MORE)
1427 client_cmd_log = string_catn(client_cmd_log, US"+", 1);
1428 store_pool = old_pool;
1434 /* This might be called both due to callout and then from delivery.
1435 Use memory that will not be released between those phases.
1438 smtp_debug_resp(const uschar * buf)
1440 # ifndef DISABLE_CLIENT_CMD_LOG
1441 int old_pool = store_pool;
1442 store_pool = POOL_PERM;
1443 client_cmd_log = string_append_listele_n(client_cmd_log, ':', buf,
1444 buf[3] == '-' ? 4 : 3);
1445 store_pool = old_pool;
1451 smtp_debug_cmd_report(void)
1453 # ifndef DISABLE_CLIENT_CMD_LOG
1454 if (client_cmd_log && *client_cmd_log->s)
1456 debug_printf("cmdlog: '%Y'\n", client_cmd_log);
1457 gstring_reset(client_cmd_log);
1460 debug_printf("cmdlog: (unset)\n");
1467 expand_max_rcpt(const uschar * str_max_rcpt)
1469 const uschar * s = expand_cstring(str_max_rcpt);
1471 return !s || !*s || (res = Uatoi(s)) == 0 ? UNLIMITED_ADDRS : res;
1474 /******************************************************************************/
1475 /* Queue-runner operations */
1478 is_onetime_qrun(void)
1480 return qrunners && !qrunners->next && qrunners->interval == 0;
1484 is_multiple_qrun(void)
1486 return qrunners && (qrunners->interval > 0 || qrunners->next);
1490 # endif /* !COMPILE_UTILITY */
1492 /******************************************************************************/
1493 #endif /* !MACRO_PREDEF */
1495 #endif /* _FUNCTIONS_H_ */
1499 /* End of functions.h */