readsocket expansion: response caching
[exim.git] / src / src / functions.h
1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
4
5 /* Copyright (c) University of Cambridge 1995 - 2018 */
6 /* See the file NOTICE for conditions of use and distribution. */
7
8
9 /* Prototypes for functions that appear in various modules. Gathered together
10 to avoid having a lot of tiddly little headers with only a couple of lines in
11 them. However, some functions that are used (or not used) by utility programs
12 are in in fact in separate headers. */
13 #ifndef _FUNCTIONS_H_
14 #define _FUNCTIONS_H_
15
16 #include <ctype.h>
17 #include <sys/time.h>
18
19
20 #ifdef EXIM_PERL
21 extern gstring *call_perl_cat(gstring *, uschar **, uschar *,
22 uschar **) WARN_UNUSED_RESULT;
23 extern void cleanup_perl(void);
24 extern uschar *init_perl(uschar *);
25 #endif
26
27
28 #ifndef DISABLE_TLS
29 extern const char *
30 std_dh_prime_default(void);
31 extern const char *
32 std_dh_prime_named(const uschar *);
33
34 extern uschar * tls_cert_crl_uri(void *, uschar * mod);
35 extern uschar * tls_cert_ext_by_oid(void *, uschar *, int);
36 extern uschar * tls_cert_issuer(void *, uschar * mod);
37 extern uschar * tls_cert_not_before(void *, uschar * mod);
38 extern uschar * tls_cert_not_after(void *, uschar * mod);
39 extern uschar * tls_cert_ocsp_uri(void *, uschar * mod);
40 extern uschar * tls_cert_serial_number(void *, uschar * mod);
41 extern uschar * tls_cert_signature(void *, uschar * mod);
42 extern uschar * tls_cert_signature_algorithm(void *, uschar * mod);
43 extern uschar * tls_cert_subject(void *, uschar * mod);
44 extern uschar * tls_cert_subject_altname(void *, uschar * mod);
45 extern uschar * tls_cert_version(void *, uschar * mod);
46
47 extern uschar * tls_cert_der_b64(void * cert);
48 extern uschar * tls_cert_fprt_md5(void *);
49 extern uschar * tls_cert_fprt_sha1(void *);
50 extern uschar * tls_cert_fprt_sha256(void *);
51
52 extern void tls_clean_env(void);
53 extern BOOL tls_client_start(client_conn_ctx *, smtp_connect_args *,
54 void *, tls_support *, uschar **);
55
56 extern void tls_close(void *, int);
57 extern BOOL tls_could_read(void);
58 extern void tls_daemon_init(void);
59 extern BOOL tls_dropprivs_validate_require_cipher(BOOL);
60 extern BOOL tls_export_cert(uschar *, size_t, void *);
61 extern int tls_feof(void);
62 extern int tls_ferror(void);
63 extern void tls_free_cert(void **);
64 extern int tls_getc(unsigned);
65 extern uschar *tls_getbuf(unsigned *);
66 extern void tls_get_cache(void);
67 extern BOOL tls_import_cert(const uschar *, void **);
68 extern int tls_read(void *, uschar *, size_t);
69 extern int tls_server_start(const uschar *, uschar **);
70 extern BOOL tls_smtp_buffered(void);
71 extern int tls_ungetc(int);
72 extern int tls_write(void *, const uschar *, size_t, BOOL);
73 extern uschar *tls_validate_require_cipher(void);
74 extern void tls_version_report(FILE *);
75 # ifdef USE_OPENSSL
76 extern BOOL tls_openssl_options_parse(uschar *, long *);
77 # endif
78 extern uschar * tls_field_from_dn(uschar *, const uschar *);
79 extern BOOL tls_is_name_for_cert(const uschar *, void *);
80
81 # ifdef SUPPORT_DANE
82 extern int tlsa_lookup(const host_item *, dns_answer *, BOOL);
83 # endif
84
85 #endif /*DISABLE_TLS*/
86
87
88 /* Everything else... */
89
90 extern acl_block *acl_read(uschar *(*)(void), uschar **);
91 extern int acl_check(int, uschar *, uschar *, uschar **, uschar **);
92 extern int acl_eval(int, uschar *, uschar **, uschar **);
93
94 extern tree_node *acl_var_create(uschar *);
95 extern void acl_var_write(uschar *, uschar *, void *);
96
97 #ifdef EXPERIMENTAL_ARC
98 extern void *arc_ams_setup_sign_bodyhash(void);
99 extern const uschar *arc_header_feed(gstring *, BOOL);
100 extern gstring *arc_sign(const uschar *, gstring *, uschar **);
101 extern void arc_sign_init(void);
102 extern const uschar *acl_verify_arc(void);
103 extern uschar * fn_arc_domains(void);
104 #endif
105
106 extern void assert_no_variables(void *, int, const char *, int);
107 extern int auth_call_pam(const uschar *, uschar **);
108 extern int auth_call_pwcheck(uschar *, uschar **);
109 extern int auth_call_radius(const uschar *, uschar **);
110 extern int auth_call_saslauthd(const uschar *, const uschar *,
111 const uschar *, const uschar *, uschar **);
112 extern int auth_check_serv_cond(auth_instance *);
113 extern int auth_check_some_cond(auth_instance *, uschar *, uschar *, int);
114 extern int auth_client_item(void *, auth_instance *, const uschar **,
115 unsigned, int, uschar *, int);
116
117
118 extern int auth_get_data(uschar **, const uschar *, int);
119 extern int auth_get_no64_data(uschar **, uschar *);
120 extern int auth_prompt(const uschar *);
121 extern int auth_read_input(const uschar *);
122 extern gstring * auth_show_supported(gstring *);
123 extern uschar *auth_xtextencode(uschar *, int);
124 extern int auth_xtextdecode(uschar *, uschar **);
125
126 #ifdef EXPERIMENTAL_ARC
127 extern gstring *authres_arc(gstring *);
128 #endif
129 #ifndef DISABLE_DKIM
130 extern gstring *authres_dkim(gstring *);
131 #endif
132 #ifdef SUPPORT_DMARC
133 extern gstring *authres_dmarc(gstring *);
134 #endif
135 extern gstring *authres_smtpauth(gstring *);
136 #ifdef SUPPORT_SPF
137 extern gstring *authres_spf(gstring *);
138 #endif
139
140 extern uschar *b64encode(const uschar *, int);
141 extern uschar *b64encode_taint(const uschar *, int, BOOL);
142 extern int b64decode(const uschar *, uschar **);
143 extern int bdat_getc(unsigned);
144 extern uschar *bdat_getbuf(unsigned *);
145 extern int bdat_ungetc(int);
146 extern void bdat_flush_data(void);
147
148 extern void bits_clear(unsigned int *, size_t, int *);
149 extern void bits_set(unsigned int *, size_t, int *);
150
151 extern void cancel_cutthrough_connection(BOOL, const uschar *);
152 extern gstring *cat_file(FILE *, gstring *, uschar *);
153 extern gstring *cat_file_tls(void *, gstring *, uschar *);
154 extern int check_host(void *, const uschar *, const uschar **, uschar **);
155 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
156 extern pid_t child_open_exim_function(int *, const uschar *);
157 extern pid_t child_open_exim2_function(int *, uschar *, uschar *,
158 const uschar *);
159 extern pid_t child_open_function(uschar **, uschar **, int,
160 int *, int *, BOOL, const uschar *);
161 extern pid_t child_open_uid(const uschar **, const uschar **, int,
162 uid_t *, gid_t *, int *, int *, uschar *, BOOL, const uschar *);
163 extern BOOL cleanup_environment(void);
164 extern void cutthrough_data_puts(uschar *, int);
165 extern void cutthrough_data_put_nl(void);
166 extern uschar *cutthrough_finaldot(void);
167 extern BOOL cutthrough_flush_send(void);
168 extern BOOL cutthrough_headers_send(void);
169 extern BOOL cutthrough_predata(void);
170 extern void release_cutthrough_connection(const uschar *);
171
172 extern void daemon_go(void);
173
174 #ifdef EXPERIMENTAL_DCC
175 extern int dcc_process(uschar **);
176 #endif
177
178 extern void debug_logging_activate(uschar *, uschar *);
179 extern void debug_logging_stop(void);
180 extern void debug_print_argv(const uschar **);
181 extern void debug_print_ids(uschar *);
182 extern void debug_printf_indent(const char *, ...) PRINTF_FUNCTION(1,2);
183 extern void debug_print_string(uschar *);
184 extern void debug_print_tree(tree_node *);
185 extern void debug_vprintf(int, const char *, va_list);
186 extern void decode_bits(unsigned int *, size_t, int *,
187 uschar *, bit_table *, int, uschar *, int);
188 extern void delete_pid_file(void);
189 extern address_item *deliver_make_addr(uschar *, BOOL);
190 extern void delivery_log(int, address_item *, int, uschar *);
191 extern int deliver_message(uschar *, BOOL, BOOL);
192 extern void deliver_msglog(const char *, ...) PRINTF_FUNCTION(1,2);
193 extern void deliver_set_expansions(address_item *);
194 extern int deliver_split_address(address_item *);
195 extern void deliver_succeeded(address_item *);
196
197 extern uschar *deliver_get_sender_address (uschar *id);
198 extern void delivery_re_exec(int);
199
200 extern void die_tainted(const uschar *, const uschar *, int);
201 extern BOOL directory_make(const uschar *, const uschar *, int, BOOL);
202 #ifndef DISABLE_DKIM
203 extern uschar *dkim_exim_query_dns_txt(const uschar *);
204 extern void dkim_exim_sign_init(void);
205
206 extern BOOL dkim_transport_write_message(transport_ctx *,
207 struct ob_dkim *, const uschar ** errstr);
208 #endif
209 extern dns_address *dns_address_from_rr(dns_answer *, dns_record *);
210 extern int dns_basic_lookup(dns_answer *, const uschar *, int);
211 extern uschar *dns_build_reverse(const uschar *);
212 extern time_t dns_expire_from_soa(dns_answer *, int);
213 extern void dns_init(BOOL, BOOL, BOOL);
214 extern BOOL dns_is_aa(const dns_answer *);
215 extern BOOL dns_is_secure(const dns_answer *);
216 extern int dns_lookup(dns_answer *, const uschar *, int, const uschar **);
217 extern void dns_pattern_init(void);
218 extern int dns_special_lookup(dns_answer *, const uschar *, int, const uschar **);
219 extern dns_record *dns_next_rr(const dns_answer *, dns_scan *, int);
220 extern uschar *dns_text_type(int);
221 extern void dscp_list_to_stream(FILE *);
222 extern BOOL dscp_lookup(const uschar *, int, int *, int *, int *);
223
224 extern void enq_end(uschar *);
225 extern BOOL enq_start(uschar *, unsigned);
226 #ifndef DISABLE_EVENT
227 extern uschar *event_raise(uschar *, const uschar *, uschar *);
228 extern void msg_event_raise(const uschar *, const address_item *);
229 #endif
230
231 extern int exim_chown_failure(int, const uschar*, uid_t, gid_t);
232 extern const uschar * exim_errstr(int);
233 extern void exim_exit(int) NORETURN;
234 extern void exim_nullstd(void);
235 extern void exim_setugid(uid_t, gid_t, BOOL, uschar *);
236 extern void exim_underbar_exit(int) NORETURN;
237 extern void exim_wait_tick(struct timeval *, int);
238 extern int exp_bool(address_item *addr,
239 uschar *mtype, uschar *mname, unsigned dgb_opt, uschar *oname, BOOL bvalue,
240 uschar *svalue, BOOL *rvalue);
241 extern BOOL expand_check_condition(uschar *, uschar *, uschar *);
242 extern uschar *expand_file_big_buffer(const uschar *);
243 extern uschar *expand_string(uschar *); /* public, cannot make const */
244 extern const uschar *expand_cstring(const uschar *); /* ... so use this one */
245 extern uschar *expand_hide_passwords(uschar * );
246 extern uschar *expand_string_copy(const uschar *);
247 extern int_eximarith_t expand_string_integer(uschar *, BOOL);
248 extern void modify_variable(uschar *, void *);
249
250 extern BOOL fd_ready(int, time_t);
251
252 extern int filter_interpret(uschar *, int, address_item **, uschar **);
253 extern BOOL filter_personal(string_item *, BOOL);
254 extern BOOL filter_runtest(int, uschar *, BOOL, BOOL);
255 extern BOOL filter_system_interpret(address_item **, uschar **);
256
257 extern uschar * fn_hdrs_added(void);
258
259 extern void header_add(int, const char *, ...);
260 extern header_line *header_add_at_position_internal(BOOL, uschar *, BOOL, int, const char *, ...);
261 extern int header_checkname(header_line *, BOOL);
262 extern BOOL header_match(uschar *, BOOL, BOOL, string_item *, int, ...);
263 extern int host_address_extract_port(uschar *);
264 extern uschar *host_and_ident(BOOL);
265 extern int host_aton(const uschar *, int *);
266 extern void host_build_hostlist(host_item **, const uschar *, BOOL);
267 extern ip_address_item *host_build_ifacelist(const uschar *, uschar *);
268 extern void host_build_log_info(void);
269 extern void host_build_sender_fullhost(void);
270 extern int host_find_byname(host_item *, const uschar *, int,
271 const uschar **, BOOL);
272 extern int host_find_bydns(host_item *, const uschar *, int, uschar *, uschar *,
273 uschar *, const dnssec_domains *, const uschar **, BOOL *);
274 extern ip_address_item *host_find_interfaces(void);
275 extern BOOL host_is_in_net(const uschar *, const uschar *, int);
276 extern BOOL host_is_tls_on_connect_port(int);
277 extern int host_item_get_port(host_item *);
278 extern void host_mask(int, int *, int);
279 extern int host_name_lookup(void);
280 extern int host_nmtoa(int, int *, int, uschar *, int);
281 extern uschar *host_ntoa(int, const void *, uschar *, int *);
282 extern int host_scan_for_local_hosts(host_item *, host_item **, BOOL *);
283
284 extern uschar *imap_utf7_encode(uschar *, const uschar *,
285 uschar, uschar *, uschar **);
286
287 extern void invert_address(uschar *, uschar *);
288 extern int ip_addr(void *, int, const uschar *, int);
289 extern int ip_bind(int, int, uschar *, int);
290 extern int ip_connect(int, int, const uschar *, int, int, const blob *);
291 extern int ip_connectedsocket(int, const uschar *, int, int,
292 int, host_item *, uschar **, const blob *);
293 extern int ip_get_address_family(int);
294 extern void ip_keepalive(int, const uschar *, BOOL);
295 extern int ip_recv(client_conn_ctx *, uschar *, int, time_t);
296 extern int ip_socket(int, int);
297
298 extern int ip_tcpsocket(const uschar *, uschar **, int, host_item *);
299 extern int ip_unixsocket(const uschar *, uschar **);
300 extern int ip_streamsocket(const uschar *, uschar **, int, host_item *);
301
302 extern int ipv6_nmtoa(int *, uschar *);
303
304 extern uschar *local_part_quote(uschar *);
305 extern int log_create(uschar *);
306 extern int log_create_as_exim(uschar *);
307 extern void log_close_all(void);
308
309 extern macro_item * macro_create(const uschar *, const uschar *, BOOL);
310 extern BOOL macro_read_assignment(uschar *);
311 extern uschar *macros_expand(int, int *, BOOL *);
312 extern void mainlog_close(void);
313 #ifdef WITH_CONTENT_SCAN
314 extern int malware(const uschar *, int);
315 extern int malware_in_file(uschar *);
316 extern void malware_init(void);
317 extern gstring * malware_show_supported(gstring *);
318 #endif
319 extern int match_address_list(const uschar *, BOOL, BOOL, const uschar **,
320 unsigned int *, int, int, const uschar **);
321 extern int match_address_list_basic(const uschar *, const uschar **, int);
322 extern int match_check_list(const uschar **, int, tree_node **, unsigned int **,
323 int(*)(void *, const uschar *, const uschar **, uschar **), void *, int,
324 const uschar *, const uschar **);
325 extern int match_isinlist(const uschar *, const uschar **, int, tree_node **,
326 unsigned int *, int, BOOL, const uschar **);
327 extern int match_check_string(const uschar *, const uschar *, int, BOOL, BOOL, BOOL,
328 const uschar **);
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 **);
340 extern void mime_set_anomaly(int);
341 #endif
342 extern uschar *moan_check_errorcopy(uschar *);
343 extern BOOL moan_skipped_syntax_errors(uschar *, error_block *, uschar *,
344 BOOL, uschar *);
345 extern void moan_smtp_batch(uschar *, const char *, ...) PRINTF_FUNCTION(2,3);
346 extern BOOL moan_send_message(uschar *, int, error_block *eblock,
347 header_line *, FILE *, uschar *);
348 extern void moan_tell_someone(uschar *, address_item *,
349 const uschar *, const char *, ...) PRINTF_FUNCTION(4,5);
350 extern BOOL moan_to_sender(int, error_block *, header_line *, FILE *, BOOL);
351 extern void moan_write_from(FILE *);
352 extern void moan_write_references(FILE *, uschar *);
353 extern FILE *modefopen(const uschar *, const char *, mode_t);
354
355 extern int open_cutthrough_connection( address_item * addr );
356
357 extern uschar *parse_extract_address(uschar *, uschar **, int *, int *, int *,
358 BOOL);
359 extern int parse_forward_list(uschar *, int, address_item **, uschar **,
360 const uschar *, uschar *, error_block **);
361 extern uschar *parse_find_address_end(uschar *, BOOL);
362 extern uschar *parse_find_at(uschar *);
363 extern const uschar *parse_fix_phrase(const uschar *, int, uschar *, int);
364 extern uschar *parse_message_id(uschar *, uschar **, uschar **);
365 extern const uschar *parse_quote_2047(const uschar *, int, uschar *, uschar *, int, BOOL);
366 extern uschar *parse_date_time(uschar *str, time_t *t);
367 extern int vaguely_random_number(int);
368 #ifndef DISABLE_TLS
369 extern int vaguely_random_number_fallback(int);
370 #endif
371
372 extern BOOL queue_action(uschar *, int, uschar **, int, int);
373 extern void queue_check_only(void);
374 extern unsigned queue_count(void);
375 extern unsigned queue_count_cached(void);
376 extern void queue_list(int, uschar **, int);
377 #ifdef EXPERIMENTAL_QUEUE_RAMP
378 extern void queue_notify_daemon(const uschar * hostname);
379 #endif
380 extern void queue_run(uschar *, uschar *, BOOL);
381
382 extern int random_number(int);
383 extern const uschar *rc_to_string(int);
384 extern int rda_interpret(redirect_block *, int, uschar *, uschar *,
385 uschar *, uschar *, uschar *, ugid_block *, address_item **,
386 uschar **, error_block **, int *, uschar *);
387 extern int rda_is_filter(const uschar *);
388 extern BOOL readconf_depends(driver_instance *, uschar *);
389 extern void readconf_driver_init(uschar *, driver_instance **,
390 driver_info *, int, void *, int, optionlist *, int);
391 extern uschar *readconf_find_option(void *);
392 extern void readconf_main(BOOL);
393 extern void readconf_options_from_list(optionlist *, unsigned, const uschar *, uschar *);
394 extern BOOL readconf_print(uschar *, uschar *, BOOL);
395 extern uschar *readconf_printtime(int);
396 extern uschar *readconf_readname(uschar *, int, uschar *);
397 extern int readconf_readtime(const uschar *, int, BOOL);
398 extern void readconf_rest(void);
399 extern uschar *readconf_retry_error(const uschar *, const uschar *, int *, int *);
400 extern void readconf_save_config(const uschar *);
401 extern void read_message_body(BOOL);
402 extern void receive_bomb_out(uschar *, uschar *) NORETURN;
403 extern BOOL receive_check_fs(int);
404 extern BOOL receive_check_set_sender(uschar *);
405 extern BOOL receive_msg(BOOL);
406 extern int_eximarith_t receive_statvfs(BOOL, int *);
407 extern void receive_swallow_smtp(void);
408 #ifdef WITH_CONTENT_SCAN
409 extern int regex(const uschar **);
410 #endif
411 extern BOOL regex_match_and_setup(const pcre *, const uschar *, int, int);
412 extern const pcre *regex_must_compile(const uschar *, BOOL, BOOL);
413 extern void retry_add_item(address_item *, uschar *, int);
414 extern BOOL retry_check_address(const uschar *, host_item *, uschar *, BOOL,
415 uschar **, uschar **);
416 extern retry_config *retry_find_config(const uschar *, const uschar *, int, int);
417 extern BOOL retry_ultimate_address_timeout(uschar *, const uschar *,
418 dbdata_retry *, time_t);
419 extern void retry_update(address_item **, address_item **, address_item **);
420 extern uschar *rewrite_address(uschar *, BOOL, BOOL, rewrite_rule *, int);
421 extern uschar *rewrite_address_qualify(uschar *, BOOL);
422 extern header_line *rewrite_header(header_line *,
423 const uschar *, const uschar *,
424 rewrite_rule *, int, BOOL);
425 extern uschar *rewrite_one(uschar *, int, BOOL *, BOOL, uschar *,
426 rewrite_rule *);
427 extern void rewrite_test(uschar *);
428 extern uschar *rfc2047_decode2(uschar *, BOOL, uschar *, int, int *, int *,
429 uschar **);
430 extern int route_address(address_item *, address_item **, address_item **,
431 address_item **, address_item **, int);
432 extern int route_check_prefix(const uschar *, const uschar *, unsigned *);
433 extern int route_check_suffix(const uschar *, const uschar *, unsigned *);
434 extern BOOL route_findgroup(uschar *, gid_t *);
435 extern BOOL route_finduser(const uschar *, struct passwd **, uid_t *);
436 extern BOOL route_find_expanded_group(uschar *, uschar *, uschar *, gid_t *,
437 uschar **);
438 extern BOOL route_find_expanded_user(uschar *, uschar *, uschar *,
439 struct passwd **, uid_t *, uschar **);
440 extern void route_init(void);
441 extern gstring * route_show_supported(gstring *);
442 extern void route_tidyup(void);
443
444 extern uschar *search_find(void *, const uschar *, uschar *, int,
445 const uschar *, int, int, int *, const uschar *);
446 extern int search_findtype(const uschar *, int);
447 extern int search_findtype_partial(const uschar *, int *, const uschar **, int *,
448 int *, const uschar **);
449 extern void *search_open(const uschar *, int, int, uid_t *, gid_t *);
450 extern void search_tidyup(void);
451 extern void set_process_info(const char *, ...) PRINTF_FUNCTION(1,2);
452 extern void sha1_end(hctx *, const uschar *, int, uschar *);
453 extern void sha1_mid(hctx *, const uschar *);
454 extern void sha1_start(hctx *);
455 extern int sieve_interpret(uschar *, int, uschar *, uschar *, uschar *,
456 uschar *, address_item **, uschar **);
457 extern void sigalrm_handler(int);
458 extern BOOL smtp_buffered(void);
459 extern void smtp_closedown(uschar *);
460 extern void smtp_command_timeout_exit(void) NORETURN;
461 extern void smtp_command_sigterm_exit(void) NORETURN;
462 extern void smtp_data_timeout_exit(void) NORETURN;
463 extern void smtp_data_sigint_exit(void) NORETURN;
464 extern void smtp_deliver_init(void);
465 extern uschar *smtp_cmd_hist(void);
466 extern int smtp_connect(smtp_connect_args *, const blob *);
467 extern int smtp_sock_connect(host_item *, int, int, uschar *,
468 transport_instance * tb, int, const blob *);
469 extern int smtp_feof(void);
470 extern int smtp_ferror(void);
471 extern uschar *smtp_get_connection_info(void);
472 extern BOOL smtp_get_interface(uschar *, int, address_item *,
473 uschar **, uschar *);
474 extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
475 extern int smtp_getc(unsigned);
476 extern uschar *smtp_getbuf(unsigned *);
477 extern void smtp_get_cache(void);
478 extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
479 extern void smtp_log_no_mail(void);
480 extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);
481 extern void smtp_proxy_tls(void *, uschar *, size_t, int *, int) NORETURN;
482 extern BOOL smtp_read_response(void *, uschar *, int, int, int);
483 extern void *smtp_reset(void *);
484 extern void smtp_respond(uschar *, int, BOOL, uschar *);
485 extern void smtp_notquit_exit(uschar *, uschar *, uschar *, ...);
486 extern void smtp_port_for_connect(host_item *, int);
487 extern void smtp_send_prohibition_message(int, uschar *);
488 extern int smtp_setup_msg(void);
489 extern BOOL smtp_start_session(void);
490 extern int smtp_ungetc(int);
491 extern BOOL smtp_verify_helo(void);
492 extern int smtp_write_command(void *, int, const char *, ...) PRINTF_FUNCTION(3,4);
493 #ifdef WITH_CONTENT_SCAN
494 extern int spam(const uschar **);
495 extern FILE *spool_mbox(unsigned long *, const uschar *, uschar **);
496 #endif
497 extern void spool_clear_header_globals(void);
498 extern BOOL spool_move_message(uschar *, uschar *, uschar *, uschar *);
499 extern int spool_open_datafile(uschar *);
500 extern int spool_open_temp(uschar *);
501 extern int spool_read_header(uschar *, BOOL, BOOL);
502 extern int spool_write_header(uschar *, int, uschar **);
503 extern int stdin_getc(unsigned);
504 extern int stdin_feof(void);
505 extern int stdin_ferror(void);
506 extern int stdin_ungetc(int);
507
508 extern void store_exit(void);
509 extern gstring *string_append(gstring *, int, ...) WARN_UNUSED_RESULT;
510 extern gstring *string_append_listele(gstring *, uschar, const uschar *) WARN_UNUSED_RESULT;
511 extern gstring *string_append_listele_n(gstring *, uschar, const uschar *, unsigned) WARN_UNUSED_RESULT;
512 extern gstring *string_append2_listele_n(gstring *, const uschar *, const uschar *, unsigned) WARN_UNUSED_RESULT;
513 extern uschar *string_base62(unsigned long int);
514 extern gstring *string_cat (gstring *, const uschar * ) WARN_UNUSED_RESULT;
515 extern gstring *string_catn(gstring *, const uschar *, int) WARN_UNUSED_RESULT;
516 extern int string_compare_by_pointer(const void *, const void *);
517 extern uschar *string_copy_dnsdomain(uschar *);
518 extern uschar *string_copy_malloc(const uschar *);
519 extern uschar *string_dequote(const uschar **);
520 extern uschar *string_format_size(int, uschar *);
521 extern int string_interpret_escape(const uschar **);
522 extern int string_is_ip_address(const uschar *, int *);
523 #ifdef SUPPORT_I18N
524 extern BOOL string_is_utf8(const uschar *);
525 #endif
526 extern const uschar *string_printing2(const uschar *, BOOL);
527 extern uschar *string_split_message(uschar *);
528 extern uschar *string_unprinting(uschar *);
529 #ifdef SUPPORT_I18N
530 extern uschar *string_address_utf8_to_alabel(const uschar *, uschar **);
531 extern uschar *string_domain_alabel_to_utf8(const uschar *, uschar **);
532 extern uschar *string_domain_utf8_to_alabel(const uschar *, uschar **);
533 extern uschar *string_localpart_alabel_to_utf8(const uschar *, uschar **);
534 extern uschar *string_localpart_utf8_to_alabel(const uschar *, uschar **);
535 #endif
536
537 #define string_format(buf, siz, fmt, ...) \
538 string_format_trc(buf, siz, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
539 extern BOOL string_format_trc(uschar *, int, const uschar *, unsigned,
540 const char *, ...) ALMOST_PRINTF(5,6);
541
542 #define string_vformat(g, flgs, fmt, ap) \
543 string_vformat_trc(g, US __FUNCTION__, __LINE__, \
544 STRING_SPRINTF_BUFFER_SIZE, flgs, fmt, ap)
545 extern gstring *string_vformat_trc(gstring *, const uschar *, unsigned,
546 unsigned, unsigned, const char *, va_list);
547
548 #define string_open_failed(eno, fmt, ...) \
549 string_open_failed_trc(eno, US __FUNCTION__, __LINE__, fmt, __VA_ARGS__)
550 extern uschar *string_open_failed_trc(int, const uschar *, unsigned,
551 const char *, ...) PRINTF_FUNCTION(4,5);
552
553 #define string_nextinlist(lp, sp, b, l) \
554 string_nextinlist_trc((lp), (sp), (b), (l), US __FUNCTION__, __LINE__)
555 extern uschar *string_nextinlist_trc(const uschar **listptr, int *separator, uschar *buffer, int buflen,
556 const uschar * func, int line);
557
558 extern int strcmpic(const uschar *, const uschar *);
559 extern int strncmpic(const uschar *, const uschar *, int);
560 extern uschar *strstric(uschar *, uschar *, BOOL);
561
562 extern int test_harness_fudged_queue_time(int);
563 extern void tcp_init(void);
564 #ifdef EXIM_TFO_PROBE
565 extern void tfo_probe(void);
566 #endif
567 extern void tls_modify_variables(tls_support *);
568 extern uschar *tod_stamp(int);
569
570 extern BOOL transport_check_waiting(const uschar *, const uschar *, int, uschar *,
571 BOOL *, oicf, void*);
572 extern void transport_init(void);
573 extern void transport_do_pass_socket(const uschar *, const uschar *,
574 const uschar *, uschar *, int);
575 extern BOOL transport_pass_socket(const uschar *, const uschar *, const uschar *, uschar *,
576 int);
577 extern uschar *transport_rcpt_address(address_item *, BOOL);
578 extern BOOL transport_set_up_command(const uschar ***, uschar *,
579 BOOL, int, address_item *, uschar *, uschar **);
580 extern void transport_update_waiting(host_item *, uschar *);
581 extern BOOL transport_write_block(transport_ctx *, uschar *, int, BOOL);
582 extern void transport_write_reset(int);
583 extern BOOL transport_write_string(int, const char *, ...);
584 extern BOOL transport_headers_send(transport_ctx *,
585 BOOL (*)(transport_ctx *, uschar *, int));
586 extern gstring * transport_show_supported(gstring *);
587 extern BOOL transport_write_message(transport_ctx *, int);
588 extern void tree_add_duplicate(uschar *, address_item *);
589 extern void tree_add_nonrecipient(uschar *);
590 extern void tree_add_unusable(host_item *);
591 extern void tree_dup(tree_node **, tree_node *);
592 extern int tree_insertnode(tree_node **, tree_node *);
593 extern tree_node *tree_search(tree_node *, const uschar *);
594 extern void tree_write(tree_node *, FILE *);
595 extern void tree_walk(tree_node *, void (*)(uschar*, uschar*, void*), void *);
596
597 #ifdef WITH_CONTENT_SCAN
598 extern void unspool_mbox(void);
599 #endif
600 #ifdef SUPPORT_I18N
601 extern void utf8_version_report(FILE *);
602 #endif
603
604 extern int verify_address(address_item *, FILE *, int, int, int, int,
605 uschar *, uschar *, BOOL *);
606 extern int verify_check_dnsbl(int, const uschar **, uschar **);
607 extern int verify_check_header_address(uschar **, uschar **, int, int, int,
608 uschar *, uschar *, int, int *);
609 extern int verify_check_headers(uschar **);
610 extern int verify_check_header_names_ascii(uschar **);
611 extern int verify_check_host(uschar **);
612 extern int verify_check_notblind(BOOL);
613 extern int verify_check_given_host(const uschar **, const host_item *);
614 extern int verify_check_this_host(const uschar **, unsigned int *,
615 const uschar*, const uschar *, const uschar **);
616 extern address_item *verify_checked_sender(uschar *);
617 extern void verify_get_ident(int);
618 extern BOOL verify_sender(int *, uschar **);
619 extern BOOL verify_sender_preliminary(int *, uschar **);
620 extern void version_init(void);
621
622 extern BOOL write_chunk(transport_ctx *, uschar *, int);
623 extern ssize_t write_to_fd_buf(int, const uschar *, size_t);
624
625
626 /******************************************************************************/
627 /* Predicate: if an address is in a tainted pool.
628 By extension, a variable pointing to this address is tainted.
629 */
630
631 static inline BOOL
632 is_tainted(const void * p)
633 {
634 #if defined(COMPILE_UTILITY) || defined(MACRO_PREDEF) || defined(EM_VERSION_C)
635 return FALSE;
636
637 #else
638 extern BOOL is_tainted_fn(const void *);
639 return is_tainted_fn(p);
640 #endif
641 }
642
643 /******************************************************************************/
644 /* String functions */
645 static inline uschar * __Ustrcat(uschar * dst, const uschar * src, const char * func, int line)
646 {
647 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
648 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcat", CUS func, line);
649 #endif
650 return US strcat(CS dst, CCS src);
651 }
652 static inline uschar * __Ustrcpy(uschar * dst, const uschar * src, const char * func, int line)
653 {
654 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
655 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrcpy", CUS func, line);
656 #endif
657 return US strcpy(CS dst, CCS src);
658 }
659 static inline uschar * __Ustrncat(uschar * dst, const uschar * src, size_t n, const char * func, int line)
660 {
661 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
662 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncat", CUS func, line);
663 #endif
664 return US strncat(CS dst, CCS src, n);
665 }
666 static inline uschar * __Ustrncpy(uschar * dst, const uschar * src, size_t n, const char * func, int line)
667 {
668 #if !defined(COMPILE_UTILITY) && !defined(MACRO_PREDEF)
669 if (!is_tainted(dst) && is_tainted(src)) die_tainted(US"Ustrncpy", CUS func, line);
670 #endif
671 return US strncpy(CS dst, CCS src, n);
672 }
673 /*XXX will likely need unchecked copy also */
674
675
676 /* Advance the string pointer given over any whitespace.
677 Return the next char as there's enought places using it to be useful. */
678
679 #define Uskip_whitespace(sp) skip_whitespace(CUSS sp)
680
681 static inline uschar skip_whitespace(const uschar ** sp)
682 { while (isspace(**sp)) (*sp)++; return **sp; }
683
684
685 /******************************************************************************/
686
687 #if !defined(MACRO_PREDEF) && !defined(COMPILE_UTILITY)
688 /* exim_chown - in some NFSv4 setups *seemes* to be an issue with
689 chown(<exim-uid>, <exim-gid>).
690
691 Probably because the idmapping is broken, misconfigured or set up in
692 an unusal way. (see Bug 2931). As I'm not sure, if this was a single
693 case of misconfiguration, or if there are more such broken systems
694 out, I try to impose as least impact as possible and for now just write
695 a panic log entry pointing to the bug report. You're encouraged to
696 contact the developers, if you experience this issue.
697
698 fd the file descriptor (or -1 if not valid)
699 name the file name for error messages or for file operations,
700 if fd is < 0
701 owner the owner
702 group the group
703
704 returns 0 on success, -1 on failure */
705
706 static inline int
707 exim_fchown(int fd, uid_t owner, gid_t group, const uschar *name)
708 {
709 return fchown(fd, owner, group)
710 ? exim_chown_failure(fd, name, owner, group) : 0;
711 }
712
713 static inline int
714 exim_chown(const uschar *name, uid_t owner, gid_t group)
715 {
716 return chown(CCS name, owner, group)
717 ? exim_chown_failure(-1, name, owner, group) : 0;
718 }
719 #endif /* !MACRO_PREDEF && !COMPILE_UTILITY */
720
721 /******************************************************************************/
722 /* String functions */
723
724 #if !defined(MACRO_PREDEF)
725 /*************************************************
726 * Copy and save string *
727 *************************************************/
728
729 /* This function assumes that memcpy() is faster than strcpy().
730 The result is explicitly nul-terminated.
731 */
732
733 static inline uschar *
734 string_copyn_taint_trc(const uschar * s, unsigned len,
735 BOOL tainted, const char * func, int line)
736 {
737 uschar * ss = store_get_3(len + 1, tainted, func, line);
738 memcpy(ss, s, len);
739 ss[len] = '\0';
740 return ss;
741 }
742
743 static inline uschar *
744 string_copy_taint_trc(const uschar * s, BOOL tainted, const char * func, int line)
745 { return string_copyn_taint_trc(s, Ustrlen(s), tainted, func, line); }
746
747 static inline uschar *
748 string_copyn_trc(const uschar * s, unsigned len, const char * func, int line)
749 { return string_copyn_taint_trc(s, len, is_tainted(s), func, line); }
750 static inline uschar *
751 string_copy_trc(const uschar * s, const char * func, int line)
752 { return string_copy_taint_trc(s, is_tainted(s), func, line); }
753
754
755 /* String-copy functions explicitly setting the taint status */
756
757 #define string_copyn_taint(s, len, tainted) \
758 string_copyn_taint_trc((s), (len), (tainted), __FUNCTION__, __LINE__)
759 #define string_copy_taint(s, tainted) \
760 string_copy_taint_trc((s), (tainted), __FUNCTION__, __LINE__)
761
762 /* Simple string-copy functions maintaining the taint */
763
764 #define string_copyn(s, len) \
765 string_copyn_taint_trc((s), (len), is_tainted(s), __FUNCTION__, __LINE__)
766 #define string_copy(s) \
767 string_copy_taint_trc((s), is_tainted(s), __FUNCTION__, __LINE__)
768
769
770 /*************************************************
771 * Copy, lowercase and save string *
772 *************************************************/
773
774 /*
775 Argument: string to copy
776 Returns: copy of string in new store, with letters lowercased
777 */
778
779 static inline uschar *
780 string_copylc(const uschar *s)
781 {
782 uschar *ss = store_get(Ustrlen(s) + 1, is_tainted(s));
783 uschar *p = ss;
784 while (*s != 0) *p++ = tolower(*s++);
785 *p = 0;
786 return ss;
787 }
788
789
790
791 /*************************************************
792 * Copy, lowercase, and save string, given length *
793 *************************************************/
794
795 /* It is assumed the data contains no zeros. A zero is added
796 onto the end.
797
798 Arguments:
799 s string to copy
800 n number of characters
801
802 Returns: copy of string in new store, with letters lowercased
803 */
804
805 static inline uschar *
806 string_copynlc(uschar *s, int n)
807 {
808 uschar *ss = store_get(n + 1, is_tainted(s));
809 uschar *p = ss;
810 while (n-- > 0) *p++ = tolower(*s++);
811 *p = 0;
812 return ss;
813 }
814
815
816 # ifndef COMPILE_UTILITY
817 /*************************************************
818 * Copy and save string in longterm store *
819 *************************************************/
820
821 /* This function assumes that memcpy() is faster than strcpy().
822
823 Argument: string to copy
824 Returns: copy of string in new store
825 */
826
827 static inline uschar *
828 string_copy_perm(const uschar *s, BOOL force_taint)
829 {
830 int old_pool = store_pool;
831 int len = Ustrlen(s) + 1;
832 uschar *ss;
833
834 store_pool = POOL_PERM;
835 ss = store_get(len, force_taint || is_tainted(s));
836 memcpy(ss, s, len);
837 store_pool = old_pool;
838 return ss;
839 }
840 # endif
841
842
843
844 /* sprintf into a buffer, taint-unchecked */
845
846 static inline void
847 string_format_nt(uschar * buf, int siz, const char * fmt, ...)
848 {
849 gstring gs = { .size = siz, .ptr = 0, .s = buf };
850 va_list ap;
851 va_start(ap, fmt);
852 (void) string_vformat(&gs, SVFMT_TAINT_NOCHK, fmt, ap);
853 va_end(ap);
854 }
855
856
857
858 /******************************************************************************/
859 /* Growable-string functions */
860
861 /* Create a growable-string with some preassigned space */
862
863 #define string_get_tainted(size, tainted) \
864 string_get_tainted_trc((size), (tainted), __FUNCTION__, __LINE__)
865
866 static inline gstring *
867 string_get_tainted_trc(unsigned size, BOOL tainted, const char * func, unsigned line)
868 {
869 gstring * g = store_get_3(sizeof(gstring) + size, tainted, func, line);
870 g->size = size;
871 g->ptr = 0;
872 g->s = US(g + 1);
873 return g;
874 }
875
876 #define string_get(size) \
877 string_get_trc((size), __FUNCTION__, __LINE__)
878
879 static inline gstring *
880 string_get_trc(unsigned size, const char * func, unsigned line)
881 {
882 return string_get_tainted_trc(size, FALSE, func, line);
883 }
884
885 /* NUL-terminate the C string in the growable-string, and return it. */
886
887 static inline uschar *
888 string_from_gstring(gstring * g)
889 {
890 if (!g) return NULL;
891 g->s[g->ptr] = '\0';
892 return g->s;
893 }
894
895 static inline unsigned
896 gstring_length(const gstring * g)
897 {
898 return g ? (unsigned)g->ptr : 0;
899 }
900
901
902 #define gstring_release_unused(g) \
903 gstring_release_unused_trc(g, __FUNCTION__, __LINE__)
904
905 static inline void
906 gstring_release_unused_trc(gstring * g, const char * file, unsigned line)
907 {
908 if (g) store_release_above_3(g->s + (g->size = g->ptr + 1), file, line);
909 }
910
911
912 /* sprintf-append to a growable-string */
913
914 #define string_fmt_append(g, fmt, ...) \
915 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
916 SVFMT_EXTEND|SVFMT_REBUFFER, fmt, __VA_ARGS__)
917
918 #define string_fmt_append_f(g, flgs, fmt, ...) \
919 string_fmt_append_f_trc(g, US __FUNCTION__, __LINE__, \
920 flgs, fmt, __VA_ARGS__)
921
922 static inline gstring *
923 string_fmt_append_f_trc(gstring * g, const uschar * func, unsigned line,
924 unsigned flags, const char *format, ...)
925 {
926 va_list ap;
927 va_start(ap, format);
928 g = string_vformat_trc(g, func, line, STRING_SPRINTF_BUFFER_SIZE,
929 flags, format, ap);
930 va_end(ap);
931 return g;
932 }
933
934
935 /* Copy the content of a string to tainted memory */
936
937 static inline void
938 gstring_rebuffer(gstring * g)
939 {
940 uschar * s = store_get(g->size, TRUE);
941 memcpy(s, g->s, g->ptr);
942 g->s = s;
943 }
944
945
946 /******************************************************************************/
947
948 #define store_get_dns_answer() store_get_dns_answer_trc(CUS __FUNCTION__, __LINE__)
949
950 static inline dns_answer *
951 store_get_dns_answer_trc(const uschar * func, unsigned line)
952 {
953 return store_get_3(sizeof(dns_answer), TRUE, CCS func, line); /* use tainted mem */
954 }
955
956 /******************************************************************************/
957 /* Routines with knowledge of spool layout */
958
959 # ifndef COMPILE_UTILITY
960 static inline void
961 spool_pname_buf(uschar * buf, int len)
962 {
963 snprintf(CS buf, len, "%s/%s/input", spool_directory, queue_name);
964 }
965
966 static inline uschar *
967 spool_dname(const uschar * purpose, uschar * subdir)
968 {
969 return string_sprintf("%s/%s/%s/%s",
970 spool_directory, queue_name, purpose, subdir);
971 }
972 # endif
973
974 static inline uschar *
975 spool_q_sname(const uschar * purpose, const uschar * q, uschar * subdir)
976 {
977 return string_sprintf("%s%s%s%s%s",
978 q, *q ? "/" : "",
979 purpose,
980 *subdir ? "/" : "", subdir);
981 }
982
983 static inline uschar *
984 spool_sname(const uschar * purpose, uschar * subdir)
985 {
986 return spool_q_sname(purpose, queue_name, subdir);
987 }
988
989 static inline uschar *
990 spool_q_fname(const uschar * purpose, const uschar * q,
991 const uschar * subdir, const uschar * fname, const uschar * suffix)
992 {
993 return string_sprintf("%s/%s/%s/%s/%s%s",
994 spool_directory, q, purpose, subdir, fname, suffix);
995 }
996
997 static inline uschar *
998 spool_fname(const uschar * purpose, const uschar * subdir, const uschar * fname,
999 const uschar * suffix)
1000 {
1001 #ifdef COMPILE_UTILITY /* version avoiding string-extension */
1002 int len = Ustrlen(spool_directory) + 1 + Ustrlen(queue_name) + 1 + Ustrlen(purpose) + 1
1003 + Ustrlen(subdir) + 1 + Ustrlen(fname) + Ustrlen(suffix) + 1;
1004 uschar * buf = store_get(len, FALSE);
1005 string_format(buf, len, "%s/%s/%s/%s/%s%s",
1006 spool_directory, queue_name, purpose, subdir, fname, suffix);
1007 return buf;
1008 #else
1009 return spool_q_fname(purpose, queue_name, subdir, fname, suffix);
1010 #endif
1011 }
1012
1013 static inline void
1014 set_subdir_str(uschar * subdir_str, const uschar * name,
1015 int search_sequence)
1016 {
1017 subdir_str[0] = split_spool_directory == (search_sequence == 0)
1018 ? name[5] : '\0';
1019 subdir_str[1] = '\0';
1020 }
1021
1022 /******************************************************************************/
1023 /* Time calculations */
1024
1025 static inline void
1026 timesince(struct timeval * diff, const struct timeval * then)
1027 {
1028 gettimeofday(diff, NULL);
1029 diff->tv_sec -= then->tv_sec;
1030 if ((diff->tv_usec -= then->tv_usec) < 0)
1031 {
1032 diff->tv_sec--;
1033 diff->tv_usec += 1000*1000;
1034 }
1035 }
1036
1037 static inline uschar *
1038 string_timediff(const struct timeval * diff)
1039 {
1040 static uschar buf[sizeof("0.000s")];
1041
1042 if (diff->tv_sec >= 5 || !LOGGING(millisec))
1043 return readconf_printtime((int)diff->tv_sec);
1044
1045 snprintf(CS buf, sizeof(buf), "%u.%03us", (uint)diff->tv_sec, (uint)diff->tv_usec/1000);
1046 return buf;
1047 }
1048
1049
1050 static inline uschar *
1051 string_timesince(const struct timeval * then)
1052 {
1053 struct timeval diff;
1054 timesince(&diff, then);
1055 return string_timediff(&diff);
1056 }
1057
1058 static inline void
1059 report_time_since(const struct timeval * t0, const uschar * where)
1060 {
1061 # ifdef MEASURE_TIMING
1062 struct timeval diff;
1063 timesince(&diff, t0);
1064 fprintf(stderr, "%d %s:\t%ld.%06ld\n",
1065 (uint)getpid(), where, (long)diff.tv_sec, (long)diff.tv_usec);
1066 # endif
1067 }
1068
1069
1070 static inline void
1071 testharness_pause_ms(int millisec)
1072 {
1073 #ifndef MEASURE_TIMING
1074 if (f.running_in_test_harness && f.testsuite_delays) millisleep(millisec);
1075 #endif
1076 }
1077
1078 /******************************************************************************/
1079 /* Taint-checked file opens */
1080
1081 static inline int
1082 exim_open2(const char *pathname, int flags)
1083 {
1084 if (!is_tainted(pathname)) return open(pathname, flags);
1085 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1086 errno = EACCES;
1087 return -1;
1088 }
1089 static inline int
1090 exim_open(const char *pathname, int flags, mode_t mode)
1091 {
1092 if (!is_tainted(pathname)) return open(pathname, flags, mode);
1093 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1094 errno = EACCES;
1095 return -1;
1096 }
1097 static inline int
1098 exim_openat(int dirfd, const char *pathname, int flags)
1099 {
1100 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags);
1101 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1102 errno = EACCES;
1103 return -1;
1104 }
1105 static inline int
1106 exim_openat4(int dirfd, const char *pathname, int flags, mode_t mode)
1107 {
1108 if (!is_tainted(pathname)) return openat(dirfd, pathname, flags, mode);
1109 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1110 errno = EACCES;
1111 return -1;
1112 }
1113
1114 static inline FILE *
1115 exim_fopen(const char *pathname, const char *mode)
1116 {
1117 if (!is_tainted(pathname)) return fopen(pathname, mode);
1118 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted filename '%s'", pathname);
1119 errno = EACCES;
1120 return NULL;
1121 }
1122
1123 static inline DIR *
1124 exim_opendir(const uschar * name)
1125 {
1126 if (!is_tainted(name)) return opendir(CCS name);
1127 log_write(0, LOG_MAIN|LOG_PANIC, "Tainted dirname '%s'", name);
1128 errno = EACCES;
1129 return NULL;
1130 }
1131
1132 /******************************************************************************/
1133 # if !defined(COMPILE_UTILITY)
1134 /* Process manipulation */
1135
1136 static inline pid_t
1137 exim_fork(const unsigned char * purpose)
1138 {
1139 pid_t pid;
1140 DEBUG(D_any) debug_printf("%s forking for %s\n", process_purpose, purpose);
1141 if ((pid = fork()) == 0)
1142 {
1143 process_purpose = purpose;
1144 DEBUG(D_any) debug_printf("postfork: %s\n", purpose);
1145 }
1146 else
1147 {
1148 testharness_pause_ms(100); /* let child work */
1149 DEBUG(D_any) debug_printf("%s forked for %s: %d\n", process_purpose, purpose, (int)pid);
1150 }
1151 return pid;
1152 }
1153
1154
1155 static inline pid_t
1156 child_open_exim(int * fdptr, const uschar * purpose)
1157 { return child_open_exim_function(fdptr, purpose); }
1158
1159 static inline pid_t
1160 child_open_exim2(int * fdptr, uschar * sender,
1161 uschar * sender_auth, const uschar * purpose)
1162 { return child_open_exim2_function(fdptr, sender, sender_auth, purpose); }
1163
1164 static inline pid_t
1165 child_open(uschar **argv, uschar **envp, int newumask, int *infdptr,
1166 int *outfdptr, BOOL make_leader, const uschar * purpose)
1167 { return child_open_function(argv, envp, newumask, infdptr,
1168 outfdptr, make_leader, purpose);
1169 }
1170
1171 # endif /* !COMPILE_UTILITY */
1172
1173 /******************************************************************************/
1174 #endif /* !MACRO_PREDEF */
1175
1176 #endif /* _FUNCTIONS_H_ */
1177
1178 /* vi: aw
1179 */
1180 /* End of functions.h */