1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2014 */
6 /* See the file NOTICE for conditions of use and distribution. */
8 /* Functions for reading the configuration file, and for displaying
9 overall configuration values. Thanks to Brian Candler for the original
10 implementation of the conditional .ifdef etc. */
14 #define CSTATE_STACK_SIZE 10
17 /* Structure for chain (stack) of .included files */
19 typedef struct config_file_item {
20 struct config_file_item *next;
26 /* Structure of table of conditional words and their state transitions */
28 typedef struct cond_item {
36 /* Structure of table of syslog facility names and values */
38 typedef struct syslog_fac_item {
44 /* Static variables */
46 static config_file_item *config_file_stack = NULL; /* For includes */
48 static uschar *syslog_facility_str = NULL;
49 static uschar next_section[24];
50 static uschar time_buffer[24];
52 /* State variables for conditional loading (.ifdef / .else / .endif) */
54 static int cstate = 0;
55 static int cstate_stack_ptr = -1;
56 static int cstate_stack[CSTATE_STACK_SIZE];
58 /* Table of state transitions for handling conditional inclusions. There are
59 four possible state transitions:
63 .elifdef true (or .else)
66 .endif just causes the previous cstate to be popped off the stack */
68 static int next_cstate[3][4] =
70 /* State 0: reading from file, or reading until next .else or .endif */
72 /* State 1: condition failed, skipping until next .else or .endif */
74 /* State 2: skipping until .endif */
78 /* Table of conditionals and the states to set. For each name, there are four
79 values: the length of the name (to save computing it each time), the state to
80 set if a macro was found in the line, the state to set if a macro was not found
81 in the line, and a stack manipulation setting which is:
83 -1 pull state value off the stack
84 0 don't alter the stack
85 +1 push value onto stack, before setting new state
88 static cond_item cond_list[] = {
89 { US"ifdef", 5, 0, 1, 1 },
90 { US"ifndef", 6, 1, 0, 1 },
91 { US"elifdef", 7, 2, 3, 0 },
92 { US"elifndef", 8, 3, 2, 0 },
93 { US"else", 4, 2, 2, 0 },
94 { US"endif", 5, 0, 0, -1 }
97 static int cond_list_size = sizeof(cond_list)/sizeof(cond_item);
99 /* Table of syslog facility names and their values */
101 static syslog_fac_item syslog_list[] = {
102 { US"mail", LOG_MAIL },
103 { US"user", LOG_USER },
104 { US"news", LOG_NEWS },
105 { US"uucp", LOG_UUCP },
106 { US"local0", LOG_LOCAL0 },
107 { US"local1", LOG_LOCAL1 },
108 { US"local2", LOG_LOCAL2 },
109 { US"local3", LOG_LOCAL3 },
110 { US"local4", LOG_LOCAL4 },
111 { US"local5", LOG_LOCAL5 },
112 { US"local6", LOG_LOCAL6 },
113 { US"local7", LOG_LOCAL7 },
114 { US"daemon", LOG_DAEMON }
117 static int syslog_list_size = sizeof(syslog_list)/sizeof(syslog_fac_item);
122 /*************************************************
123 * Main configuration options *
124 *************************************************/
126 /* The list of options that can be set in the main configuration file. This
127 must be in alphabetic order because it is searched by binary chop. */
129 static optionlist optionlist_config[] = {
130 { "*set_exim_group", opt_bool|opt_hidden, &exim_gid_set },
131 { "*set_exim_user", opt_bool|opt_hidden, &exim_uid_set },
132 { "*set_system_filter_group", opt_bool|opt_hidden, &system_filter_gid_set },
133 { "*set_system_filter_user", opt_bool|opt_hidden, &system_filter_uid_set },
134 { "accept_8bitmime", opt_bool, &accept_8bitmime },
135 { "acl_not_smtp", opt_stringptr, &acl_not_smtp },
136 #ifdef WITH_CONTENT_SCAN
137 { "acl_not_smtp_mime", opt_stringptr, &acl_not_smtp_mime },
139 { "acl_not_smtp_start", opt_stringptr, &acl_not_smtp_start },
140 { "acl_smtp_auth", opt_stringptr, &acl_smtp_auth },
141 { "acl_smtp_connect", opt_stringptr, &acl_smtp_connect },
142 { "acl_smtp_data", opt_stringptr, &acl_smtp_data },
144 { "acl_smtp_data_prdr", opt_stringptr, &acl_smtp_data_prdr },
147 { "acl_smtp_dkim", opt_stringptr, &acl_smtp_dkim },
149 { "acl_smtp_etrn", opt_stringptr, &acl_smtp_etrn },
150 { "acl_smtp_expn", opt_stringptr, &acl_smtp_expn },
151 { "acl_smtp_helo", opt_stringptr, &acl_smtp_helo },
152 { "acl_smtp_mail", opt_stringptr, &acl_smtp_mail },
153 { "acl_smtp_mailauth", opt_stringptr, &acl_smtp_mailauth },
154 #ifdef WITH_CONTENT_SCAN
155 { "acl_smtp_mime", opt_stringptr, &acl_smtp_mime },
157 { "acl_smtp_notquit", opt_stringptr, &acl_smtp_notquit },
158 { "acl_smtp_predata", opt_stringptr, &acl_smtp_predata },
159 { "acl_smtp_quit", opt_stringptr, &acl_smtp_quit },
160 { "acl_smtp_rcpt", opt_stringptr, &acl_smtp_rcpt },
162 { "acl_smtp_starttls", opt_stringptr, &acl_smtp_starttls },
164 { "acl_smtp_vrfy", opt_stringptr, &acl_smtp_vrfy },
165 { "admin_groups", opt_gidlist, &admin_groups },
166 { "allow_domain_literals", opt_bool, &allow_domain_literals },
167 { "allow_mx_to_ip", opt_bool, &allow_mx_to_ip },
168 { "allow_utf8_domains", opt_bool, &allow_utf8_domains },
169 { "auth_advertise_hosts", opt_stringptr, &auth_advertise_hosts },
170 { "auto_thaw", opt_time, &auto_thaw },
171 #ifdef WITH_CONTENT_SCAN
172 { "av_scanner", opt_stringptr, &av_scanner },
174 { "bi_command", opt_stringptr, &bi_command },
175 #ifdef EXPERIMENTAL_BRIGHTMAIL
176 { "bmi_config_file", opt_stringptr, &bmi_config_file },
178 { "bounce_message_file", opt_stringptr, &bounce_message_file },
179 { "bounce_message_text", opt_stringptr, &bounce_message_text },
180 { "bounce_return_body", opt_bool, &bounce_return_body },
181 { "bounce_return_message", opt_bool, &bounce_return_message },
182 { "bounce_return_size_limit", opt_mkint, &bounce_return_size_limit },
183 { "bounce_sender_authentication",opt_stringptr,&bounce_sender_authentication },
184 { "callout_domain_negative_expire", opt_time, &callout_cache_domain_negative_expire },
185 { "callout_domain_positive_expire", opt_time, &callout_cache_domain_positive_expire },
186 { "callout_negative_expire", opt_time, &callout_cache_negative_expire },
187 { "callout_positive_expire", opt_time, &callout_cache_positive_expire },
188 { "callout_random_local_part",opt_stringptr, &callout_random_local_part },
189 { "check_log_inodes", opt_int, &check_log_inodes },
190 { "check_log_space", opt_Kint, &check_log_space },
191 { "check_rfc2047_length", opt_bool, &check_rfc2047_length },
192 { "check_spool_inodes", opt_int, &check_spool_inodes },
193 { "check_spool_space", opt_Kint, &check_spool_space },
194 { "daemon_smtp_port", opt_stringptr|opt_hidden, &daemon_smtp_port },
195 { "daemon_smtp_ports", opt_stringptr, &daemon_smtp_port },
196 { "daemon_startup_retries", opt_int, &daemon_startup_retries },
197 { "daemon_startup_sleep", opt_time, &daemon_startup_sleep },
198 #ifdef EXPERIMENTAL_DCC
199 { "dcc_direct_add_header", opt_bool, &dcc_direct_add_header },
200 { "dccifd_address", opt_stringptr, &dccifd_address },
201 { "dccifd_options", opt_stringptr, &dccifd_options },
203 { "delay_warning", opt_timelist, &delay_warning },
204 { "delay_warning_condition", opt_stringptr, &delay_warning_condition },
205 { "deliver_drop_privilege", opt_bool, &deliver_drop_privilege },
206 { "deliver_queue_load_max", opt_fixed, &deliver_queue_load_max },
207 { "delivery_date_remove", opt_bool, &delivery_date_remove },
208 #ifdef EXPERIMENTAL_TPDA
209 { "delivery_event_action", opt_stringptr, &delivery_event_action },
211 #ifdef ENABLE_DISABLE_FSYNC
212 { "disable_fsync", opt_bool, &disable_fsync },
214 { "disable_ipv6", opt_bool, &disable_ipv6 },
216 { "dkim_verify_signers", opt_stringptr, &dkim_verify_signers },
218 #ifdef EXPERIMENTAL_DMARC
219 { "dmarc_forensic_sender", opt_stringptr, &dmarc_forensic_sender },
220 { "dmarc_history_file", opt_stringptr, &dmarc_history_file },
221 { "dmarc_tld_file", opt_stringptr, &dmarc_tld_file },
223 { "dns_again_means_nonexist", opt_stringptr, &dns_again_means_nonexist },
224 { "dns_check_names_pattern", opt_stringptr, &check_dns_names_pattern },
225 { "dns_csa_search_limit", opt_int, &dns_csa_search_limit },
226 { "dns_csa_use_reverse", opt_bool, &dns_csa_use_reverse },
227 { "dns_dnssec_ok", opt_int, &dns_dnssec_ok },
228 { "dns_ipv4_lookup", opt_stringptr, &dns_ipv4_lookup },
229 { "dns_retrans", opt_time, &dns_retrans },
230 { "dns_retry", opt_int, &dns_retry },
231 { "dns_use_edns0", opt_int, &dns_use_edns0 },
232 /* This option is now a no-op, retained for compability */
233 { "drop_cr", opt_bool, &drop_cr },
234 /*********************************************************/
235 #ifdef EXPERIMENTAL_DSN
236 { "dsn_advertise_hosts", opt_stringptr, &dsn_advertise_hosts },
238 { "dsn_from", opt_stringptr, &dsn_from },
239 { "envelope_to_remove", opt_bool, &envelope_to_remove },
240 { "errors_copy", opt_stringptr, &errors_copy },
241 { "errors_reply_to", opt_stringptr, &errors_reply_to },
242 { "exim_group", opt_gid, &exim_gid },
243 { "exim_path", opt_stringptr, &exim_path },
244 { "exim_user", opt_uid, &exim_uid },
245 { "extra_local_interfaces", opt_stringptr, &extra_local_interfaces },
246 { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments },
247 { "finduser_retries", opt_int, &finduser_retries },
248 { "freeze_tell", opt_stringptr, &freeze_tell },
249 { "gecos_name", opt_stringptr, &gecos_name },
250 { "gecos_pattern", opt_stringptr, &gecos_pattern },
252 { "gnutls_allow_auto_pkcs11", opt_bool, &gnutls_allow_auto_pkcs11 },
253 { "gnutls_compat_mode", opt_bool, &gnutls_compat_mode },
254 /* These three gnutls_require_* options stopped working in Exim 4.80 */
255 /* From 4.83 we log a warning; a future relase will remove them */
256 { "gnutls_require_kx", opt_stringptr, &gnutls_require_kx },
257 { "gnutls_require_mac", opt_stringptr, &gnutls_require_mac },
258 { "gnutls_require_protocols", opt_stringptr, &gnutls_require_proto },
260 { "header_line_maxsize", opt_int, &header_line_maxsize },
261 { "header_maxsize", opt_int, &header_maxsize },
262 { "headers_charset", opt_stringptr, &headers_charset },
263 { "helo_accept_junk_hosts", opt_stringptr, &helo_accept_junk_hosts },
264 { "helo_allow_chars", opt_stringptr, &helo_allow_chars },
265 { "helo_lookup_domains", opt_stringptr, &helo_lookup_domains },
266 { "helo_try_verify_hosts", opt_stringptr, &helo_try_verify_hosts },
267 { "helo_verify_hosts", opt_stringptr, &helo_verify_hosts },
268 { "hold_domains", opt_stringptr, &hold_domains },
269 { "host_lookup", opt_stringptr, &host_lookup },
270 { "host_lookup_order", opt_stringptr, &host_lookup_order },
271 { "host_reject_connection", opt_stringptr, &host_reject_connection },
272 { "hosts_connection_nolog", opt_stringptr, &hosts_connection_nolog },
273 { "hosts_treat_as_local", opt_stringptr, &hosts_treat_as_local },
275 { "ibase_servers", opt_stringptr, &ibase_servers },
277 { "ignore_bounce_errors_after", opt_time, &ignore_bounce_errors_after },
278 { "ignore_fromline_hosts", opt_stringptr, &ignore_fromline_hosts },
279 { "ignore_fromline_local", opt_bool, &ignore_fromline_local },
280 { "keep_malformed", opt_time, &keep_malformed },
282 { "ldap_ca_cert_dir", opt_stringptr, &eldap_ca_cert_dir },
283 { "ldap_ca_cert_file", opt_stringptr, &eldap_ca_cert_file },
284 { "ldap_cert_file", opt_stringptr, &eldap_cert_file },
285 { "ldap_cert_key", opt_stringptr, &eldap_cert_key },
286 { "ldap_cipher_suite", opt_stringptr, &eldap_cipher_suite },
287 { "ldap_default_servers", opt_stringptr, &eldap_default_servers },
288 { "ldap_require_cert", opt_stringptr, &eldap_require_cert },
289 { "ldap_start_tls", opt_bool, &eldap_start_tls },
290 { "ldap_version", opt_int, &eldap_version },
292 { "local_from_check", opt_bool, &local_from_check },
293 { "local_from_prefix", opt_stringptr, &local_from_prefix },
294 { "local_from_suffix", opt_stringptr, &local_from_suffix },
295 { "local_interfaces", opt_stringptr, &local_interfaces },
296 { "local_scan_timeout", opt_time, &local_scan_timeout },
297 { "local_sender_retain", opt_bool, &local_sender_retain },
298 { "localhost_number", opt_stringptr, &host_number_string },
299 { "log_file_path", opt_stringptr, &log_file_path },
300 { "log_selector", opt_stringptr, &log_selector_string },
301 { "log_timezone", opt_bool, &log_timezone },
302 { "lookup_open_max", opt_int, &lookup_open_max },
303 { "max_username_length", opt_int, &max_username_length },
304 { "message_body_newlines", opt_bool, &message_body_newlines },
305 { "message_body_visible", opt_mkint, &message_body_visible },
306 { "message_id_header_domain", opt_stringptr, &message_id_domain },
307 { "message_id_header_text", opt_stringptr, &message_id_text },
308 { "message_logs", opt_bool, &message_logs },
309 { "message_size_limit", opt_stringptr, &message_size_limit },
310 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
311 { "move_frozen_messages", opt_bool, &move_frozen_messages },
313 { "mua_wrapper", opt_bool, &mua_wrapper },
315 { "mysql_servers", opt_stringptr, &mysql_servers },
317 { "never_users", opt_uidlist, &never_users },
319 { "openssl_options", opt_stringptr, &openssl_options },
322 { "oracle_servers", opt_stringptr, &oracle_servers },
324 { "percent_hack_domains", opt_stringptr, &percent_hack_domains },
326 { "perl_at_start", opt_bool, &opt_perl_at_start },
327 { "perl_startup", opt_stringptr, &opt_perl_startup },
330 { "pgsql_servers", opt_stringptr, &pgsql_servers },
332 { "pid_file_path", opt_stringptr, &pid_file_path },
333 { "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts },
335 { "prdr_enable", opt_bool, &prdr_enable },
337 { "preserve_message_logs", opt_bool, &preserve_message_logs },
338 { "primary_hostname", opt_stringptr, &primary_hostname },
339 { "print_topbitchars", opt_bool, &print_topbitchars },
340 { "process_log_path", opt_stringptr, &process_log_path },
341 { "prod_requires_admin", opt_bool, &prod_requires_admin },
342 #ifdef EXPERIMENTAL_PROXY
343 { "proxy_required_hosts", opt_stringptr, &proxy_required_hosts },
345 { "qualify_domain", opt_stringptr, &qualify_domain_sender },
346 { "qualify_recipient", opt_stringptr, &qualify_domain_recipient },
347 { "queue_domains", opt_stringptr, &queue_domains },
348 { "queue_list_requires_admin",opt_bool, &queue_list_requires_admin },
349 { "queue_only", opt_bool, &queue_only },
350 { "queue_only_file", opt_stringptr, &queue_only_file },
351 { "queue_only_load", opt_fixed, &queue_only_load },
352 { "queue_only_load_latch", opt_bool, &queue_only_load_latch },
353 { "queue_only_override", opt_bool, &queue_only_override },
354 { "queue_run_in_order", opt_bool, &queue_run_in_order },
355 { "queue_run_max", opt_int, &queue_run_max },
356 { "queue_smtp_domains", opt_stringptr, &queue_smtp_domains },
357 { "receive_timeout", opt_time, &receive_timeout },
358 { "received_header_text", opt_stringptr, &received_header_text },
359 { "received_headers_max", opt_int, &received_headers_max },
360 { "recipient_unqualified_hosts", opt_stringptr, &recipient_unqualified_hosts },
361 { "recipients_max", opt_int, &recipients_max },
362 { "recipients_max_reject", opt_bool, &recipients_max_reject },
363 #ifdef EXPERIMENTAL_REDIS
364 { "redis_servers", opt_stringptr, &redis_servers },
366 { "remote_max_parallel", opt_int, &remote_max_parallel },
367 { "remote_sort_domains", opt_stringptr, &remote_sort_domains },
368 { "retry_data_expire", opt_time, &retry_data_expire },
369 { "retry_interval_max", opt_time, &retry_interval_max },
370 { "return_path_remove", opt_bool, &return_path_remove },
371 { "return_size_limit", opt_mkint|opt_hidden, &bounce_return_size_limit },
372 { "rfc1413_hosts", opt_stringptr, &rfc1413_hosts },
373 { "rfc1413_query_timeout", opt_time, &rfc1413_query_timeout },
374 { "sender_unqualified_hosts", opt_stringptr, &sender_unqualified_hosts },
375 { "smtp_accept_keepalive", opt_bool, &smtp_accept_keepalive },
376 { "smtp_accept_max", opt_int, &smtp_accept_max },
377 { "smtp_accept_max_nonmail", opt_int, &smtp_accept_max_nonmail },
378 { "smtp_accept_max_nonmail_hosts", opt_stringptr, &smtp_accept_max_nonmail_hosts },
379 { "smtp_accept_max_per_connection", opt_int, &smtp_accept_max_per_connection },
380 { "smtp_accept_max_per_host", opt_stringptr, &smtp_accept_max_per_host },
381 { "smtp_accept_queue", opt_int, &smtp_accept_queue },
382 { "smtp_accept_queue_per_connection", opt_int, &smtp_accept_queue_per_connection },
383 { "smtp_accept_reserve", opt_int, &smtp_accept_reserve },
384 { "smtp_active_hostname", opt_stringptr, &raw_active_hostname },
385 { "smtp_banner", opt_stringptr, &smtp_banner },
386 { "smtp_check_spool_space", opt_bool, &smtp_check_spool_space },
387 { "smtp_connect_backlog", opt_int, &smtp_connect_backlog },
388 { "smtp_enforce_sync", opt_bool, &smtp_enforce_sync },
389 { "smtp_etrn_command", opt_stringptr, &smtp_etrn_command },
390 { "smtp_etrn_serialize", opt_bool, &smtp_etrn_serialize },
391 { "smtp_load_reserve", opt_fixed, &smtp_load_reserve },
392 { "smtp_max_synprot_errors", opt_int, &smtp_max_synprot_errors },
393 { "smtp_max_unknown_commands",opt_int, &smtp_max_unknown_commands },
394 { "smtp_ratelimit_hosts", opt_stringptr, &smtp_ratelimit_hosts },
395 { "smtp_ratelimit_mail", opt_stringptr, &smtp_ratelimit_mail },
396 { "smtp_ratelimit_rcpt", opt_stringptr, &smtp_ratelimit_rcpt },
397 { "smtp_receive_timeout", opt_time, &smtp_receive_timeout },
398 { "smtp_reserve_hosts", opt_stringptr, &smtp_reserve_hosts },
399 { "smtp_return_error_details",opt_bool, &smtp_return_error_details },
400 #ifdef WITH_CONTENT_SCAN
401 { "spamd_address", opt_stringptr, &spamd_address },
403 #ifdef EXPERIMENTAL_SPF
404 { "spf_guess", opt_stringptr, &spf_guess },
406 { "split_spool_directory", opt_bool, &split_spool_directory },
407 { "spool_directory", opt_stringptr, &spool_directory },
409 { "sqlite_lock_timeout", opt_int, &sqlite_lock_timeout },
411 #ifdef EXPERIMENTAL_SRS
412 { "srs_config", opt_stringptr, &srs_config },
413 { "srs_hashlength", opt_int, &srs_hashlength },
414 { "srs_hashmin", opt_int, &srs_hashmin },
415 { "srs_maxage", opt_int, &srs_maxage },
416 { "srs_secrets", opt_stringptr, &srs_secrets },
417 { "srs_usehash", opt_bool, &srs_usehash },
418 { "srs_usetimestamp", opt_bool, &srs_usetimestamp },
420 { "strict_acl_vars", opt_bool, &strict_acl_vars },
421 { "strip_excess_angle_brackets", opt_bool, &strip_excess_angle_brackets },
422 { "strip_trailing_dot", opt_bool, &strip_trailing_dot },
423 { "syslog_duplication", opt_bool, &syslog_duplication },
424 { "syslog_facility", opt_stringptr, &syslog_facility_str },
425 { "syslog_processname", opt_stringptr, &syslog_processname },
426 { "syslog_timestamp", opt_bool, &syslog_timestamp },
427 { "system_filter", opt_stringptr, &system_filter },
428 { "system_filter_directory_transport", opt_stringptr,&system_filter_directory_transport },
429 { "system_filter_file_transport",opt_stringptr,&system_filter_file_transport },
430 { "system_filter_group", opt_gid, &system_filter_gid },
431 { "system_filter_pipe_transport",opt_stringptr,&system_filter_pipe_transport },
432 { "system_filter_reply_transport",opt_stringptr,&system_filter_reply_transport },
433 { "system_filter_user", opt_uid, &system_filter_uid },
434 { "tcp_nodelay", opt_bool, &tcp_nodelay },
435 #ifdef USE_TCP_WRAPPERS
436 { "tcp_wrappers_daemon_name", opt_stringptr, &tcp_wrappers_daemon_name },
438 { "timeout_frozen_after", opt_time, &timeout_frozen_after },
439 { "timezone", opt_stringptr, &timezone_string },
441 { "tls_advertise_hosts", opt_stringptr, &tls_advertise_hosts },
442 { "tls_certificate", opt_stringptr, &tls_certificate },
443 { "tls_crl", opt_stringptr, &tls_crl },
444 { "tls_dh_max_bits", opt_int, &tls_dh_max_bits },
445 { "tls_dhparam", opt_stringptr, &tls_dhparam },
446 # ifndef DISABLE_OCSP
447 { "tls_ocsp_file", opt_stringptr, &tls_ocsp_file },
449 { "tls_on_connect_ports", opt_stringptr, &tls_in.on_connect_ports },
450 { "tls_privatekey", opt_stringptr, &tls_privatekey },
451 { "tls_remember_esmtp", opt_bool, &tls_remember_esmtp },
452 { "tls_require_ciphers", opt_stringptr, &tls_require_ciphers },
453 { "tls_try_verify_hosts", opt_stringptr, &tls_try_verify_hosts },
454 { "tls_verify_certificates", opt_stringptr, &tls_verify_certificates },
455 { "tls_verify_hosts", opt_stringptr, &tls_verify_hosts },
457 { "trusted_groups", opt_gidlist, &trusted_groups },
458 { "trusted_users", opt_uidlist, &trusted_users },
459 { "unknown_login", opt_stringptr, &unknown_login },
460 { "unknown_username", opt_stringptr, &unknown_username },
461 { "untrusted_set_sender", opt_stringptr, &untrusted_set_sender },
462 { "uucp_from_pattern", opt_stringptr, &uucp_from_pattern },
463 { "uucp_from_sender", opt_stringptr, &uucp_from_sender },
464 { "warn_message_file", opt_stringptr, &warn_message_file },
465 { "write_rejectlog", opt_bool, &write_rejectlog }
468 static int optionlist_config_size =
469 sizeof(optionlist_config)/sizeof(optionlist);
473 /*************************************************
474 * Find the name of an option *
475 *************************************************/
477 /* This function is to aid debugging. Various functions take arguments that are
478 pointer variables in the options table or in option tables for various drivers.
479 For debugging output, it is useful to be able to find the name of the option
480 which is currently being processed. This function finds it, if it exists, by
481 searching the table(s).
483 Arguments: a value that is presumed to be in the table above
484 Returns: the option name, or an empty string
488 readconf_find_option(void *p)
492 transport_instance *t;
494 for (i = 0; i < optionlist_config_size; i++)
495 if (p == optionlist_config[i].value) return US optionlist_config[i].name;
497 for (r = routers; r != NULL; r = r->next)
499 router_info *ri = r->info;
500 for (i = 0; i < ri->options_count[0]; i++)
502 if ((ri->options[i].type & opt_mask) != opt_stringptr) continue;
503 if (p == (char *)(r->options_block) + (long int)(ri->options[i].value))
504 return US ri->options[i].name;
508 for (t = transports; t != NULL; t = t->next)
510 transport_info *ti = t->info;
511 for (i = 0; i < ti->options_count[0]; i++)
513 if ((ti->options[i].type & opt_mask) != opt_stringptr) continue;
514 if (p == (char *)(t->options_block) + (long int)(ti->options[i].value))
515 return US ti->options[i].name;
525 /*************************************************
526 * Deal with an assignment to a macro *
527 *************************************************/
529 /* This function is called when a line that starts with an upper case letter is
530 encountered. The argument "line" should contain a complete logical line, and
531 start with the first letter of the macro name. The macro name and the
532 replacement text are extracted and stored. Redefinition of existing,
533 non-command line, macros is permitted using '==' instead of '='.
536 s points to the start of the logical line
542 read_macro_assignment(uschar *s)
548 macro_item *mlast = NULL;
550 while (isalnum(*s) || *s == '_')
552 if (namelen >= sizeof(name) - 1)
553 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
554 "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1);
555 name[namelen++] = *s++;
559 while (isspace(*s)) s++;
561 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition");
568 while (isspace(*s)) s++;
570 /* If an existing macro of the same name was defined on the command line, we
571 just skip this definition. It's an error to attempt to redefine a macro without
572 redef set to TRUE, or to redefine a macro when it hasn't been defined earlier.
573 It is also an error to define a macro whose name begins with the name of a
574 previously defined macro. Note: it is documented that the other way round
577 for (m = macros; m != NULL; m = m->next)
579 int len = Ustrlen(m->name);
581 if (Ustrcmp(m->name, name) == 0)
583 if (!m->command_line && !redef)
584 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already "
585 "defined (use \"==\" if you want to redefine it", name);
589 if (len < namelen && Ustrstr(name, m->name) != NULL)
590 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
591 "a macro because previously defined macro \"%s\" is a substring",
594 /* We cannot have this test, because it is documented that a substring
595 macro is permitted (there is even an example).
597 * if (len > namelen && Ustrstr(m->name, name) != NULL)
598 * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
599 * "a macro because it is a substring of previously defined macro \"%s\"",
606 /* Check for an overriding command-line definition. */
608 if (m != NULL && m->command_line) return;
610 /* Redefinition must refer to an existing macro. */
615 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro "
619 /* We have a new definition. The macro_item structure includes a final vector
620 called "name" which is one byte long. Thus, adding "namelen" gives us enough
621 room to store the "name" string. */
625 m = store_get(sizeof(macro_item) + namelen);
626 if (macros == NULL) macros = m; else mlast->next = m;
627 Ustrncpy(m->name, name, namelen);
628 m->name[namelen] = 0;
630 m->command_line = FALSE;
633 /* Set the value of the new or redefined macro */
635 m->replacement = string_copy(s);
642 /*************************************************
643 * Read configuration line *
644 *************************************************/
646 /* A logical line of text is read from the configuration file into the big
647 buffer, taking account of macros, .includes, and continuations. The size of
648 big_buffer is increased if necessary. The count of configuration lines is
649 maintained. Physical input lines starting with # (ignoring leading white space,
650 and after macro replacement) and empty logical lines are always ignored.
651 Leading and trailing spaces are removed.
653 If we hit a line of the form "begin xxxx", the xxxx is placed in the
654 next_section vector, and the function returns NULL, indicating the end of a
655 configuration section. On end-of-file, NULL is returned with next_section
660 Returns: a pointer to the first non-blank in the line,
661 or NULL if eof or end of section is reached
665 get_config_line(void)
667 int startoffset = 0; /* To first non-blank char in logical line */
668 int len = 0; /* Of logical line so far */
674 /* Loop for handling continuation lines, skipping comments, and dealing with
679 if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL)
681 if (config_file_stack != NULL) /* EOF inside .include */
683 (void)fclose(config_file);
684 config_file = config_file_stack->file;
685 config_filename = config_file_stack->filename;
686 config_lineno = config_file_stack->lineno;
687 config_file_stack = config_file_stack->next;
691 /* EOF at top level */
693 if (cstate_stack_ptr >= 0)
694 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
695 "Unexpected end of configuration file: .endif missing");
697 if (len != 0) break; /* EOF after continuation */
698 next_section[0] = 0; /* EOF at start of logical line */
703 newlen = len + Ustrlen(big_buffer + len);
705 /* Handle pathologically long physical lines - yes, it did happen - by
706 extending big_buffer at this point. The code also copes with very long
709 while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n')
712 big_buffer_size += BIG_BUFFER_SIZE;
713 newbuffer = store_malloc(big_buffer_size);
715 /* This use of strcpy is OK because we know that the string in the old
716 buffer is shorter than the new buffer. */
718 Ustrcpy(newbuffer, big_buffer);
719 store_free(big_buffer);
720 big_buffer = newbuffer;
721 if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL)
723 newlen += Ustrlen(big_buffer + newlen);
726 /* Find the true start of the physical line - leading spaces are always
729 ss = big_buffer + len;
730 while (isspace(*ss)) ss++;
732 /* Process the physical line for macros. If this is the start of the logical
733 line, skip over initial text at the start of the line if it starts with an
734 upper case character followed by a sequence of name characters and an equals
735 sign, because that is the definition of a new macro, and we don't do
736 replacement therein. */
739 if (len == 0 && isupper(*s))
741 while (isalnum(*s) || *s == '_') s++;
742 while (isspace(*s)) s++;
743 if (*s != '=') s = ss; /* Not a macro definition */
746 /* For each defined macro, scan the line (from after XXX= if present),
747 replacing all occurrences of the macro. */
750 for (m = macros; m != NULL; m = m->next)
755 while ((p = Ustrstr(t, m->name)) != NULL)
758 int namelen = Ustrlen(m->name);
759 int replen = Ustrlen(m->replacement);
761 /* Expand the buffer if necessary */
763 while (newlen - namelen + replen + 1 > big_buffer_size)
765 int newsize = big_buffer_size + BIG_BUFFER_SIZE;
766 uschar *newbuffer = store_malloc(newsize);
767 memcpy(newbuffer, big_buffer, newlen + 1);
768 p = newbuffer + (p - big_buffer);
769 s = newbuffer + (s - big_buffer);
770 ss = newbuffer + (ss - big_buffer);
771 t = newbuffer + (t - big_buffer);
772 big_buffer_size = newsize;
773 store_free(big_buffer);
774 big_buffer = newbuffer;
777 /* Shuffle the remaining characters up or down in the buffer before
778 copying in the replacement text. Don't rescan the replacement for this
782 moveby = replen - namelen;
785 memmove(p + replen, pp, (big_buffer + newlen) - pp + 1);
788 Ustrncpy(p, m->replacement, replen);
794 /* An empty macro replacement at the start of a line could mean that ss no
795 longer points to the first non-blank character. */
797 while (isspace(*ss)) ss++;
799 /* Check for comment lines - these are physical lines. */
801 if (*ss == '#') continue;
803 /* Handle conditionals, which are also applied to physical lines. Conditions
804 are of the form ".ifdef ANYTEXT" and are treated as true if any macro
805 expansion occured on the rest of the line. A preliminary test for the leading
806 '.' saves effort on most lines. */
812 /* Search the list of conditional directives */
814 for (i = 0; i < cond_list_size; i++)
817 cond_item *c = cond_list+i;
818 if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue;
820 /* The following character must be white space or end of string */
822 n = ss[1 + c->namelen];
823 if (n != ' ' && n != 't' && n != '\n' && n != 0) break;
825 /* .ifdef and .ifndef push the current state onto the stack, then set
826 a new one from the table. Stack overflow is an error */
830 if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1)
831 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
832 ".%s nested too deeply", c->name);
833 cstate_stack[++cstate_stack_ptr] = cstate;
834 cstate = next_cstate[cstate][macro_found? c->action1 : c->action2];
837 /* For any of the others, stack underflow is an error. The next state
838 comes either from the stack (.endif) or from the table. */
842 if (cstate_stack_ptr < 0)
843 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
844 ".%s without matching .ifdef", c->name);
845 cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] :
846 next_cstate[cstate][macro_found? c->action1 : c->action2];
849 /* Having dealt with a directive, break the loop */
854 /* If we have handled a conditional directive, continue with the next
855 physical line. Otherwise, fall through. */
857 if (i < cond_list_size) continue;
860 /* If the conditional state is not 0 (actively using these lines), ignore
863 if (cstate != 0) continue; /* Conditional skip */
865 /* Handle .include lines - these are also physical lines. */
867 if (Ustrncmp(ss, ".include", 8) == 0 &&
869 (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18]))))
872 int include_if_exists = isspace(ss[8])? 0 : 10;
873 config_file_item *save;
876 ss += 9 + include_if_exists;
877 while (isspace(*ss)) ss++;
878 t = ss + Ustrlen(ss);
879 while (t > ss && isspace(t[-1])) t--;
880 if (*ss == '\"' && t[-1] == '\"')
888 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-"
889 "absolute path \"%s\"", ss);
891 if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue;
893 save = store_get(sizeof(config_file_item));
894 save->next = config_file_stack;
895 config_file_stack = save;
896 save->file = config_file;
897 save->filename = config_filename;
898 save->lineno = config_lineno;
900 config_file = Ufopen(ss, "rb");
901 if (config_file == NULL)
902 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included "
903 "configuration file %s", ss);
904 config_filename = string_copy(ss);
909 /* If this is the start of the logical line, remember where the non-blank
910 data starts. Otherwise shuffle down continuation lines to remove leading
914 startoffset = ss - big_buffer;
917 s = big_buffer + len;
920 memmove(s, ss, (newlen - len) - (ss - s) + 1);
925 /* Accept the new addition to the line. Remove trailing white space. */
928 while (len > 0 && isspace(big_buffer[len-1])) len--;
931 /* We are done if the line does not end in backslash and contains some data.
932 Empty logical lines are ignored. For continuations, remove the backslash and
933 go round the loop to read the continuation line. */
937 if (big_buffer[len-1] != '\\') break; /* End of logical line */
938 big_buffer[--len] = 0; /* Remove backslash */
940 } /* Loop for reading multiple physical lines */
942 /* We now have a logical line. Test for the end of a configuration section (or,
943 more accurately, for the start of the next section). Place the name of the next
944 section in next_section, and return NULL. If the name given is longer than
945 next_section, truncate it. It will be unrecognized later, because all the known
946 section names do fit. Leave space for pluralizing. */
948 s = big_buffer + startoffset; /* First non-space character */
949 if (strncmpic(s, US"begin ", 6) == 0)
952 while (isspace(*s)) s++;
953 if (big_buffer + len - s > sizeof(next_section) - 2)
954 s[sizeof(next_section) - 2] = 0;
955 Ustrcpy(next_section, s);
959 /* Return the first non-blank character. */
966 /*************************************************
968 *************************************************/
970 /* The yield is the pointer to the next uschar. Names longer than the
971 output space are silently truncated. This function is also used from acl.c when
975 name where to put the name
979 Returns: new input pointer
983 readconf_readname(uschar *name, int len, uschar *s)
986 while (isspace(*s)) s++;
989 while (isalnum(*s) || *s == '_')
991 if (p < len-1) name[p++] = *s;
996 while (isspace(*s)) s++;
1003 /*************************************************
1004 * Read a time value *
1005 *************************************************/
1007 /* This function is also called from outside, to read argument
1008 time values. The format of a time value is:
1010 [<n>w][<n>d][<n>h][<n>m][<n>s]
1012 as long as at least one is present. If a format error is encountered,
1013 return a negative value. The value must be terminated by the given
1018 terminator required terminating character
1019 return_msec if TRUE, allow fractional seconds and return milliseconds
1021 Returns: the time value, or -1 on syntax error
1022 value is seconds if return_msec is FALSE
1023 value is milliseconds if return_msec is TRUE
1027 readconf_readtime(uschar *s, int terminator, BOOL return_msec)
1035 if (!isdigit(*s)) return -1;
1036 (void)sscanf(CS s, "%d%n", &value, &count);
1041 case 'w': value *= 7;
1042 case 'd': value *= 24;
1043 case 'h': value *= 60;
1044 case 'm': value *= 60;
1049 if (!return_msec) return -1;
1050 (void)sscanf(CS s, "%lf%n", &fraction, &count);
1052 if (*s++ != 's') return -1;
1053 yield += (int)(fraction * 1000.0);
1059 if (return_msec) value *= 1000;
1061 if (*s == terminator) return yield;
1063 /* Control never reaches here. */
1068 /*************************************************
1069 * Read a fixed point value *
1070 *************************************************/
1072 /* The value is returned *1000
1076 terminator required terminator
1078 Returns: the value, or -1 on error
1082 readconf_readfixed(uschar *s, int terminator)
1086 if (!isdigit(*s)) return -1;
1087 (void)sscanf(CS s, "%d%n", &value, &count);
1089 yield = value * 1000;
1093 while (isdigit((*(++s))))
1095 yield += (*s - '0') * m;
1100 return (*s == terminator)? yield : (-1);
1105 /*************************************************
1106 * Find option in list *
1107 *************************************************/
1109 /* The lists are always in order, so binary chop can be used.
1112 name the option name to search for
1113 ol the first entry in the option list
1114 last one more than the offset of the last entry in the option list
1116 Returns: pointer to an option entry, or NULL if not found
1120 find_option(uschar *name, optionlist *ol, int last)
1123 while (last > first)
1125 int middle = (first + last)/2;
1126 int c = Ustrcmp(name, ol[middle].name);
1127 if (c == 0) return ol + middle;
1128 else if (c > 0) first = middle + 1;
1136 /*************************************************
1137 * Find a set flag in option list *
1138 *************************************************/
1140 /* Because some versions of Unix make no restrictions on the values of uids and
1141 gids (even negative ones), we cannot represent "unset" by a special value.
1142 There is therefore a separate boolean variable for each one indicating whether
1143 a value is set or not. This function returns a pointer to the boolean, given
1144 the original option name. It is a major disaster if the flag cannot be found.
1147 name the name of the uid or gid option
1148 oltop points to the start of the relevant option list
1149 last one more than the offset of the last item in the option list
1150 data_block NULL when reading main options => data values in the option
1151 list are absolute addresses; otherwise they are byte offsets
1152 in data_block (used for driver options)
1154 Returns: a pointer to the boolean flag.
1158 get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block)
1162 sprintf(CS name2, "*set_%.50s", name);
1163 ol = find_option(name2, oltop, last);
1164 if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE,
1165 "Exim internal error: missing set flag for %s", name);
1166 return (data_block == NULL)? (BOOL *)(ol->value) :
1167 (BOOL *)((uschar *)data_block + (long int)(ol->value));
1173 /*************************************************
1174 * Output extra characters message and die *
1175 *************************************************/
1177 /* Called when an option line has junk on the end. Sometimes this is because
1178 the sysadmin thinks comments are permitted.
1181 s points to the extra characters
1182 t1..t3 strings to insert in the log message
1184 Returns: doesn't return; dies
1188 extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3)
1190 uschar *comment = US"";
1191 if (*s == '#') comment = US" (# is comment only at line start)";
1192 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1193 "extra characters follow %s%s%s%s", t1, t2, t3, comment);
1198 /*************************************************
1199 * Read rewrite information *
1200 *************************************************/
1202 /* Each line of rewrite information contains:
1204 . A complete address in the form user@domain, possibly with
1205 leading * for each part; or alternatively, a regex.
1207 . A replacement string (which will be expanded).
1209 . An optional sequence of one-letter flags, indicating which
1210 headers etc. to apply this rule to.
1212 All this is decoded and placed into a control block. The OR of the flags is
1213 maintained in a common word.
1216 p points to the string that makes up the rule
1217 existflags points to the overall flag word
1218 isglobal TRUE if reading global rewrite rules
1220 Returns: the control block for the parsed rule.
1223 static rewrite_rule *
1224 readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal)
1226 rewrite_rule *next = store_get(sizeof(rewrite_rule));
1229 next->key = string_dequote(&p);
1231 while (isspace(*p)) p++;
1233 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1234 "missing rewrite replacement string");
1237 next->replacement = string_dequote(&p);
1239 while (*p != 0) switch (*p++)
1241 case ' ': case '\t': break;
1243 case 'q': next->flags |= rewrite_quit; break;
1244 case 'w': next->flags |= rewrite_whole; break;
1246 case 'h': next->flags |= rewrite_all_headers; break;
1247 case 's': next->flags |= rewrite_sender; break;
1248 case 'f': next->flags |= rewrite_from; break;
1249 case 't': next->flags |= rewrite_to; break;
1250 case 'c': next->flags |= rewrite_cc; break;
1251 case 'b': next->flags |= rewrite_bcc; break;
1252 case 'r': next->flags |= rewrite_replyto; break;
1254 case 'E': next->flags |= rewrite_all_envelope; break;
1255 case 'F': next->flags |= rewrite_envfrom; break;
1256 case 'T': next->flags |= rewrite_envto; break;
1258 case 'Q': next->flags |= rewrite_qualify; break;
1259 case 'R': next->flags |= rewrite_repeat; break;
1262 next->flags |= rewrite_smtp;
1263 if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0)
1264 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1265 "rewrite rule has the S flag but is not a regular expression");
1269 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1270 "unknown rewrite flag character '%c' "
1271 "(could be missing quotes round replacement item)", p[-1]);
1275 /* If no action flags are set, set all the "normal" rewrites. */
1277 if ((next->flags & (rewrite_all | rewrite_smtp)) == 0)
1278 next->flags |= isglobal? rewrite_all : rewrite_all_headers;
1280 /* Remember which exist, for optimization, and return the rule */
1282 *existflags |= next->flags;
1289 /*************************************************
1290 * Read global rewrite information *
1291 *************************************************/
1293 /* Each line is a single rewrite rule; it is parsed into a control block
1294 by readconf_one_rewrite(), and its flags are ORed into the global flag
1295 word rewrite_existflags. */
1298 readconf_rewrites(void)
1300 rewrite_rule **chain = &global_rewrite_rules;
1303 while ((p = get_config_line()) != NULL)
1305 rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE);
1307 chain = &(next->next);
1313 /*************************************************
1315 *************************************************/
1317 /* Strings are read into the normal store pool. As long we aren't too
1318 near the end of the current block, the string will just use what is necessary
1319 on the top of the stacking pool, because string_cat() uses the extension
1323 s the rest of the input line
1324 name the option name (for errors)
1326 Returns: pointer to the string
1330 read_string(uschar *s, uschar *name)
1335 if (*s != '\"') return string_copy(s);
1338 yield = string_dequote(&s);
1340 if (s == ss+1 || s[-1] != '\"')
1341 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1342 "missing quote at end of string value for %s", name);
1344 if (*s != 0) extra_chars_error(s, US"string value for ", name, US"");
1350 /*************************************************
1351 * Handle option line *
1352 *************************************************/
1354 /* This function is called from several places to process a line containing the
1355 setting of an option. The first argument is the line to be decoded; it has been
1356 checked not to be empty and not to start with '#'. Trailing newlines and white
1357 space have been removed. The second argument is a pointer to the list of
1358 variable names that are to be recognized, together with their types and
1359 locations, and the third argument gives the number of entries in the list.
1361 The fourth argument is a pointer to a data block. If it is NULL, then the data
1362 values in the options list are absolute addresses. Otherwise, they are byte
1363 offsets in the data block.
1365 String option data may continue onto several lines; this function reads further
1366 data from config_file if necessary.
1368 The yield of this function is normally zero. If a string continues onto
1369 multiple lines, then the data value is permitted to be followed by a comma
1370 or a semicolon (for use in drivers) and the yield is that character.
1373 buffer contains the configuration line to be handled
1374 oltop points to the start of the relevant option list
1375 last one more than the offset of the last item in the option list
1376 data_block NULL when reading main options => data values in the option
1377 list are absolute addresses; otherwise they are byte offsets
1378 in data_block when they have opt_public set; otherwise
1379 they are byte offsets in data_block->options_block.
1380 unknown_txt format string to use in panic message for unknown option;
1381 must contain %s for option name
1382 if given as NULL, don't panic on unknown option
1384 Returns: TRUE if an option was read successfully,
1385 FALSE false for an unknown option if unknown_txt == NULL,
1386 otherwise panic and die on an unknown option
1390 readconf_handle_option(uschar *buffer, optionlist *oltop, int last,
1391 void *data_block, uschar *unknown_txt)
1395 int n, count, type, value;
1399 BOOL boolvalue = TRUE;
1400 BOOL freesptr = TRUE;
1401 optionlist *ol, *ol2;
1405 uschar *inttype = US"";
1408 uschar *saved_condition, *strtemp;
1409 uschar **str_target;
1413 /* There may be leading spaces; thereafter, we expect an option name starting
1416 while (isspace(*s)) s++;
1418 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s);
1420 /* Read the name of the option, and skip any subsequent white space. If
1421 it turns out that what we read was "hide", set the flag indicating that
1422 this is a secure option, and loop to read the next word. */
1424 for (n = 0; n < 2; n++)
1426 while (isalnum(*s) || *s == '_')
1428 if (ptr < sizeof(name)-1) name[ptr++] = *s;
1432 while (isspace(*s)) s++;
1433 if (Ustrcmp(name, "hide") != 0) break;
1434 issecure = opt_secure;
1438 /* Deal with "no_" or "not_" here for booleans */
1440 if (Ustrncmp(name, "no_", 3) == 0)
1446 if (Ustrncmp(name, "not_", 4) == 0)
1452 /* Search the list for the given name. A non-existent name, or an option that
1453 is set twice, is a disaster. */
1455 ol = find_option(name + offset, oltop, last);
1459 if (unknown_txt == NULL) return FALSE;
1460 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name);
1463 if ((ol->type & opt_set) && !(ol->type & (opt_rep_con | opt_rep_str)))
1464 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1465 "\"%s\" option set for the second time", name);
1467 ol->type |= opt_set | issecure;
1468 type = ol->type & opt_mask;
1470 /* Types with data values must be followed by '='; the "no[t]_" prefix
1471 applies only to boolean values. */
1473 if (type < opt_bool || type > opt_bool_last)
1476 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1477 "negation prefix applied to a non-boolean option");
1479 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1480 "unexpected end of line (data missing) after %s", name);
1482 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name);
1485 /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and
1486 true/false/yes/no, or, in the case of opt_expanded_bool, a general string that
1487 ultimately expands to one of those values. */
1489 else if (*s != 0 && (offset != 0 || *s != '='))
1490 extra_chars_error(s, US"boolean option ", name, US"");
1492 /* Skip white space after = */
1494 if (*s == '=') while (isspace((*(++s))));
1496 /* If there is a data block and the opt_public flag is not set, change
1497 the data block pointer to the private options block. */
1499 if (data_block != NULL && (ol->type & opt_public) == 0)
1500 data_block = (void *)(((driver_instance *)data_block)->options_block);
1502 /* Now get the data according to the type. */
1506 /* If a string value is not enclosed in quotes, it consists of
1507 the rest of the current line, verbatim. Otherwise, string escapes
1510 A transport is specified as a string, which is then looked up in the
1511 list of transports. A search type is specified as one of a number of
1514 A set or rewrite rules for a driver is specified as a string, which is
1515 then parsed into a suitable chain of control blocks.
1517 Uids and gids are specified as strings which are then looked up in the
1518 passwd file. Lists of uids and gids are similarly specified as colon-
1519 separated strings. */
1524 case opt_expand_uid:
1525 case opt_expand_gid:
1530 reset_point = sptr = read_string(s, name);
1532 /* Having read a string, we now have several different ways of using it,
1533 depending on the data type, so do another switch. If keeping the actual
1534 string is not required (because it is interpreted), freesptr is set TRUE,
1535 and at the end we reset the pool. */
1539 /* If this was a string, set the variable to point to the new string,
1540 and set the flag so its store isn't reclaimed. If it was a list of rewrite
1541 rules, we still keep the string (for printing), and parse the rules into a
1542 control block and flags word. */
1545 if (data_block == NULL)
1546 str_target = (uschar **)(ol->value);
1548 str_target = (uschar **)((uschar *)data_block + (long int)(ol->value));
1549 if (ol->type & opt_rep_con)
1551 /* We already have a condition, we're conducting a crude hack to let
1552 multiple condition rules be chained together, despite storing them in
1554 saved_condition = *str_target;
1555 strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}",
1556 saved_condition, sptr);
1557 *str_target = string_copy_malloc(strtemp);
1558 /* TODO(pdp): there is a memory leak here and just below
1559 when we set 3 or more conditions; I still don't
1560 understand the store mechanism enough to know
1561 what's the safe way to free content from an earlier store.
1562 AFAICT, stores stack, so freeing an early stored item also stores
1563 all data alloc'd after it. If we knew conditions were adjacent,
1564 we could survive that, but we don't. So I *think* we need to take
1565 another bit from opt_type to indicate "malloced"; this seems like
1566 quite a hack, especially for this one case. It also means that
1567 we can't ever reclaim the store from the *first* condition.
1569 Because we only do this once, near process start-up, I'm prepared to
1570 let this slide for the time being, even though it rankles. */
1572 else if (ol->type & opt_rep_str)
1574 uschar sep = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':';
1577 /* Strip trailing whitespace and seperators */
1578 for (cp = sptr + Ustrlen(sptr) - 1;
1579 cp >= sptr && (*cp == '\n' || *cp == '\t' || *cp == ' ' || *cp == sep);
1583 *str_target = string_copy_malloc(
1584 *str_target ? string_sprintf("%s%c%s", *str_target, sep, sptr)
1595 if (data_block == NULL)
1596 *((uschar **)(ol->value)) = sptr;
1598 *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr;
1600 if (type == opt_rewrite)
1605 rewrite_rule **chain;
1608 sprintf(CS name2, "*%.50s_rules", name);
1609 ol2 = find_option(name2, oltop, last);
1610 sprintf(CS name2, "*%.50s_flags", name);
1611 ol3 = find_option(name2, oltop, last);
1613 if (ol2 == NULL || ol3 == NULL)
1614 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1615 "rewrite rules not available for driver");
1617 if (data_block == NULL)
1619 chain = (rewrite_rule **)(ol2->value);
1620 flagptr = (int *)(ol3->value);
1624 chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value));
1625 flagptr = (int *)((uschar *)data_block + (long int)(ol3->value));
1628 while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE))
1631 rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE);
1633 chain = &(next->next);
1636 if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0)
1637 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a "
1638 "non-header rewrite - not allowed at transport time -");
1642 /* If it was an expanded uid, see if there is any expansion to be
1643 done by checking for the presence of a $ character. If there is, save it
1644 in the corresponding *expand_user option field. Otherwise, fall through
1645 to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds
1648 case opt_expand_uid:
1649 sprintf(CS name2, "*expand_%.50s", name);
1650 ol2 = find_option(name2, oltop, last);
1653 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1655 if (data_block == NULL)
1656 *((uschar **)(ol2->value)) = ss;
1658 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1662 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1668 /* Look up a fixed uid, and also make use of the corresponding gid
1669 if a passwd entry is returned and the gid has not been set. */
1672 if (!route_finduser(sptr, &pw, &uid))
1673 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr);
1674 if (data_block == NULL)
1675 *((uid_t *)(ol->value)) = uid;
1677 *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid;
1679 /* Set the flag indicating a fixed value is set */
1681 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1683 /* Handle matching gid if we have a passwd entry: done by finding the
1684 same name with terminating "user" changed to "group"; if not found,
1685 ignore. Also ignore if the value is already set. */
1687 if (pw == NULL) break;
1688 Ustrcpy(name+Ustrlen(name)-4, "group");
1689 ol2 = find_option(name, oltop, last);
1690 if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid ||
1691 (ol2->type & opt_mask) == opt_expand_gid))
1693 BOOL *set_flag = get_set_flag(name, oltop, last, data_block);
1696 if (data_block == NULL)
1697 *((gid_t *)(ol2->value)) = pw->pw_gid;
1699 *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid;
1705 /* If it was an expanded gid, see if there is any expansion to be
1706 done by checking for the presence of a $ character. If there is, save it
1707 in the corresponding *expand_user option field. Otherwise, fall through
1708 to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds
1711 case opt_expand_gid:
1712 sprintf(CS name2, "*expand_%.50s", name);
1713 ol2 = find_option(name2, oltop, last);
1716 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1718 if (data_block == NULL)
1719 *((uschar **)(ol2->value)) = ss;
1721 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1725 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1731 /* Handle freestanding gid */
1734 if (!route_findgroup(sptr, &gid))
1735 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr);
1736 if (data_block == NULL)
1737 *((gid_t *)(ol->value)) = gid;
1739 *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid;
1740 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1743 /* If it was a uid list, look up each individual entry, and build
1744 a vector of uids, with a count in the first element. Put the vector
1745 in malloc store so we can free the string. (We are reading into
1746 permanent store already.) */
1754 uschar *op = expand_string (sptr);
1757 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1758 name, expand_string_message);
1761 if (*p != 0) count++;
1762 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1763 list = store_malloc(count*sizeof(uid_t));
1764 list[ptr++] = (uid_t)(count - 1);
1766 if (data_block == NULL)
1767 *((uid_t **)(ol->value)) = list;
1769 *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1775 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1776 if (!route_finduser(big_buffer, NULL, &uid))
1777 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found",
1784 /* If it was a gid list, look up each individual entry, and build
1785 a vector of gids, with a count in the first element. Put the vector
1786 in malloc store so we can free the string. (We are reading into permanent
1795 uschar *op = expand_string (sptr);
1798 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1799 name, expand_string_message);
1802 if (*p != 0) count++;
1803 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1804 list = store_malloc(count*sizeof(gid_t));
1805 list[ptr++] = (gid_t)(count - 1);
1807 if (data_block == NULL)
1808 *((gid_t **)(ol->value)) = list;
1810 *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1816 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1817 if (!route_findgroup(big_buffer, &gid))
1818 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found",
1826 /* Release store if the value of the string doesn't need to be kept. */
1828 if (freesptr) store_reset(reset_point);
1831 /* Expanded boolean: if no characters follow, or if there are no dollar
1832 characters, this is a fixed-valued boolean, and we fall through. Otherwise,
1833 save the string for later expansion in the alternate place. */
1835 case opt_expand_bool:
1836 if (*s != 0 && Ustrchr(s, '$') != 0)
1838 sprintf(CS name2, "*expand_%.50s", name);
1839 ol2 = find_option(name2, oltop, last);
1842 reset_point = sptr = read_string(s, name);
1843 if (data_block == NULL)
1844 *((uschar **)(ol2->value)) = sptr;
1846 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr;
1853 /* Boolean: if no characters follow, the value is boolvalue. Otherwise
1854 look for yes/not/true/false. Some booleans are stored in a single bit in
1855 a single int. There's a special fudge for verify settings; without a suffix
1856 they set both xx_sender and xx_recipient. The table points to the sender
1857 value; search subsequently for the recipient. There's another special case:
1858 opt_bool_set also notes when a boolean has been set. */
1862 case opt_bool_verify:
1866 s = readconf_readname(name2, 64, s);
1867 if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0)
1869 else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0)
1871 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1872 "\"%s\" is not a valid value for the \"%s\" option", name2, name);
1873 if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2),
1874 US"for boolean option ", name);
1877 /* Handle single-bit type. */
1879 if (type == opt_bit)
1881 int bit = 1 << ((ol->type >> 16) & 31);
1882 int *ptr = (data_block == NULL)?
1883 (int *)(ol->value) :
1884 (int *)((uschar *)data_block + (long int)ol->value);
1885 if (boolvalue) *ptr |= bit; else *ptr &= ~bit;
1889 /* Handle full BOOL types */
1891 if (data_block == NULL)
1892 *((BOOL *)(ol->value)) = boolvalue;
1894 *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue;
1898 if (type == opt_bool_verify)
1900 sprintf(CS name2, "%.50s_recipient", name + offset);
1901 ol2 = find_option(name2, oltop, last);
1904 if (data_block == NULL)
1905 *((BOOL *)(ol2->value)) = boolvalue;
1907 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue;
1911 /* Note that opt_bool_set type is set, if there is somewhere to do so */
1913 else if (type == opt_bool_set)
1915 sprintf(CS name2, "*set_%.50s", name + offset);
1916 ol2 = find_option(name2, oltop, last);
1919 if (data_block == NULL)
1920 *((BOOL *)(ol2->value)) = TRUE;
1922 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE;
1931 inttype = US"octal ";
1933 /* Integer: a simple(ish) case; allow octal and hex formats, and
1934 suffixes K and M. The different types affect output, not input. */
1943 lvalue = strtol(CS s, CSS &endptr, intbase);
1946 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1949 if (errno != ERANGE)
1951 if (tolower(*endptr) == 'k')
1953 if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE;
1954 else lvalue *= 1024;
1957 else if (tolower(*endptr) == 'm')
1959 if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024))
1961 else lvalue *= 1024*1024;
1966 if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN)
1967 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1968 "absolute value of integer \"%s\" is too large (overflow)", s);
1970 while (isspace(*endptr)) endptr++;
1972 extra_chars_error(endptr, inttype, US"integer value for ", name);
1974 value = (int)lvalue;
1977 if (data_block == NULL)
1978 *((int *)(ol->value)) = value;
1980 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
1983 /* Integer held in K: again, allow octal and hex formats, and suffixes K and
1990 value = strtol(CS s, CSS &endptr, intbase);
1993 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1996 if (errno != ERANGE)
1998 if (tolower(*endptr) == 'm')
2000 if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE;
2004 else if (tolower(*endptr) == 'k')
2010 value = (value + 512)/1024;
2014 if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2015 "absolute value of integer \"%s\" is too large (overflow)", s);
2017 while (isspace(*endptr)) endptr++;
2019 extra_chars_error(endptr, inttype, US"integer value for ", name);
2022 if (data_block == NULL)
2023 *((int *)(ol->value)) = value;
2025 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2028 /* Fixed-point number: held to 3 decimal places. */
2031 if (sscanf(CS s, "%d%n", &value, &count) != 1)
2032 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2033 "fixed-point number expected for %s", name);
2035 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2036 "integer \"%s\" is too large (overflow)", s);
2040 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2041 "integer \"%s\" is too large (overflow)", s);
2043 if (s[count] == '.')
2046 while (isdigit(s[++count]))
2048 value += (s[count] - '0') * d;
2053 while (isspace(s[count])) count++;
2056 extra_chars_error(s+count, US"fixed-point value for ", name, US"");
2058 if (data_block == NULL)
2059 *((int *)(ol->value)) = value;
2061 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2064 /* There's a special routine to read time values. */
2067 value = readconf_readtime(s, 0, FALSE);
2069 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2071 if (data_block == NULL)
2072 *((int *)(ol->value)) = value;
2074 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2077 /* A time list is a list of colon-separated times, with the first
2078 element holding the size of the list and the second the number of
2084 int *list = (data_block == NULL)?
2085 (int *)(ol->value) :
2086 (int *)((uschar *)data_block + (long int)(ol->value));
2088 if (*s != 0) for (count = 1; count <= list[0] - 2; count++)
2091 uschar *snext = Ustrchr(s, ':');
2095 while (ss > s && isspace(ss[-1])) ss--;
2098 value = readconf_readtime(s, terminator, FALSE);
2100 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2102 if (count > 1 && value <= list[count])
2103 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2104 "time value out of order for %s", name);
2105 list[count+1] = value;
2106 if (snext == NULL) break;
2108 while (isspace(*s)) s++;
2111 if (count > list[0] - 2)
2112 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s",
2114 if (count > 0 && list[2] == 0) count = 0;
2126 /*************************************************
2127 * Print a time value *
2128 *************************************************/
2131 Argument: a time value in seconds
2132 Returns: pointer to a fixed buffer containing the time as a string,
2133 in readconf_readtime() format
2137 readconf_printtime(int t)
2140 uschar *p = time_buffer;
2157 if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; }
2158 if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; }
2159 if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; }
2160 if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; }
2161 if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s);
2168 /*************************************************
2169 * Print an individual option value *
2170 *************************************************/
2172 /* This is used by the -bP option, so prints to the standard output.
2173 The entire options list is passed in as an argument, because some options come
2174 in pairs - typically uid/gid settings, which can either be explicit numerical
2175 values, or strings to be expanded later. If the numerical value is unset,
2176 search for "*expand_<name>" to see if there is a string equivalent.
2179 ol option entry, or NULL for an unknown option
2181 options_block NULL for main configuration options; otherwise points to
2182 a driver block; if the option doesn't have opt_public
2183 set, then options_block->options_block is where the item
2185 oltop points to the option list in which ol exists
2186 last one more than the offset of the last entry in optop
2187 no_labels do not show "foo = " at the start.
2193 print_ol(optionlist *ol, uschar *name, void *options_block,
2194 optionlist *oltop, int last, BOOL no_labels)
2207 printf("%s is not a known option\n", name);
2211 /* Non-admin callers cannot see options that have been flagged secure by the
2214 if (!admin_user && (ol->type & opt_secure) != 0)
2216 const char * const hidden = "<value not displayable>";
2218 printf("%s\n", hidden);
2220 printf("%s = %s\n", name, hidden);
2224 /* Else show the value of the option */
2227 if (options_block != NULL)
2229 if ((ol->type & opt_public) == 0)
2230 options_block = (void *)(((driver_instance *)options_block)->options_block);
2231 value = (void *)((uschar *)options_block + (long int)value);
2234 switch(ol->type & opt_mask)
2237 case opt_rewrite: /* Show the text value */
2238 s = *((uschar **)value);
2239 if (!no_labels) printf("%s = ", name);
2240 printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE));
2244 if (!no_labels) printf("%s = ", name);
2245 printf("%d\n", *((int *)value));
2250 int x = *((int *)value);
2251 if (x != 0 && (x & 1023) == 0)
2255 if ((x & 1023) == 0)
2260 if (!no_labels) printf("%s = ", name);
2261 printf("%d%c\n", x, c);
2265 if (!no_labels) printf("%s = ", name);
2273 int x = *((int *)value);
2274 if (!no_labels) printf("%s = ", name);
2275 if (x == 0) printf("0\n");
2276 else if ((x & 1023) == 0) printf("%dM\n", x >> 10);
2277 else printf("%dK\n", x);
2282 if (!no_labels) printf("%s = ", name);
2283 printf("%#o\n", *((int *)value));
2286 /* Can be negative only when "unset", in which case integer */
2290 int x = *((int *)value);
2293 if (x < 0) printf("%s =\n", name); else
2295 if (!no_labels) printf("%s = ", name);
2296 printf("%d.", x/1000);
2309 /* If the numerical value is unset, try for the string value */
2311 case opt_expand_uid:
2312 if (! *get_set_flag(name, oltop, last, options_block))
2314 sprintf(CS name2, "*expand_%.50s", name);
2315 ol2 = find_option(name2, oltop, last);
2318 void *value2 = ol2->value;
2319 if (options_block != NULL)
2320 value2 = (void *)((uschar *)options_block + (long int)value2);
2321 s = *((uschar **)value2);
2322 if (!no_labels) printf("%s = ", name);
2323 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2328 /* Else fall through */
2331 if (!no_labels) printf("%s = ", name);
2332 if (! *get_set_flag(name, oltop, last, options_block))
2336 pw = getpwuid(*((uid_t *)value));
2338 printf("%ld\n", (long int)(*((uid_t *)value)));
2339 else printf("%s\n", pw->pw_name);
2343 /* If the numerical value is unset, try for the string value */
2345 case opt_expand_gid:
2346 if (! *get_set_flag(name, oltop, last, options_block))
2348 sprintf(CS name2, "*expand_%.50s", name);
2349 ol2 = find_option(name2, oltop, last);
2350 if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr)
2352 void *value2 = ol2->value;
2353 if (options_block != NULL)
2354 value2 = (void *)((uschar *)options_block + (long int)value2);
2355 s = *((uschar **)value2);
2356 if (!no_labels) printf("%s = ", name);
2357 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2362 /* Else fall through */
2365 if (!no_labels) printf("%s = ", name);
2366 if (! *get_set_flag(name, oltop, last, options_block))
2370 gr = getgrgid(*((int *)value));
2372 printf("%ld\n", (long int)(*((int *)value)));
2373 else printf("%s\n", gr->gr_name);
2378 uidlist = *((uid_t **)value);
2379 if (!no_labels) printf("%s =", name);
2380 if (uidlist != NULL)
2384 if (no_labels) sep = '\0';
2385 for (i = 1; i <= (int)(uidlist[0]); i++)
2387 uschar *name = NULL;
2388 pw = getpwuid(uidlist[i]);
2389 if (pw != NULL) name = US pw->pw_name;
2390 if (sep != '\0') printf("%c", sep);
2391 if (name != NULL) printf("%s", name);
2392 else printf("%ld", (long int)(uidlist[i]));
2400 gidlist = *((gid_t **)value);
2401 if (!no_labels) printf("%s =", name);
2402 if (gidlist != NULL)
2406 if (no_labels) sep = '\0';
2407 for (i = 1; i <= (int)(gidlist[0]); i++)
2409 uschar *name = NULL;
2410 gr = getgrgid(gidlist[i]);
2411 if (gr != NULL) name = US gr->gr_name;
2412 if (sep != '\0') printf("%c", sep);
2413 if (name != NULL) printf("%s", name);
2414 else printf("%ld", (long int)(gidlist[i]));
2422 if (!no_labels) printf("%s = ", name);
2423 printf("%s\n", readconf_printtime(*((int *)value)));
2429 int *list = (int *)value;
2430 if (!no_labels) printf("%s = ", name);
2431 for (i = 0; i < list[1]; i++)
2432 printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2]));
2438 printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))?
2442 case opt_expand_bool:
2443 sprintf(CS name2, "*expand_%.50s", name);
2444 ol2 = find_option(name2, oltop, last);
2445 if (ol2 != NULL && ol2->value != NULL)
2447 void *value2 = ol2->value;
2448 if (options_block != NULL)
2449 value2 = (void *)((uschar *)options_block + (long int)value2);
2450 s = *((uschar **)value2);
2453 if (!no_labels) printf("%s = ", name);
2454 printf("%s\n", string_printing(s));
2457 /* s == NULL => string not set; fall through */
2463 case opt_bool_verify:
2465 printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name);
2472 /*************************************************
2473 * Print value from main configuration *
2474 *************************************************/
2476 /* This function, called as a result of encountering the -bP option,
2477 causes the value of any main configuration variable to be output if the
2478 second argument is NULL. There are some special values:
2480 all print all main configuration options
2481 configure_file print the name of the configuration file
2482 routers print the routers' configurations
2483 transports print the transports' configuration
2484 authenticators print the authenticators' configuration
2485 macros print the macros' configuration
2486 router_list print a list of router names
2487 transport_list print a list of transport names
2488 authenticator_list print a list of authentication mechanism names
2489 macro_list print a list of macro names
2490 +name print a named list item
2491 local_scan print the local_scan options
2493 If the second argument is not NULL, it must be one of "router", "transport",
2494 "authenticator" or "macro" in which case the first argument identifies the
2495 driver whose options are to be printed.
2498 name option name if type == NULL; else driver name
2499 type NULL or driver type name, as described above
2500 no_labels avoid the "foo = " at the start of an item
2506 readconf_print(uschar *name, uschar *type, BOOL no_labels)
2508 BOOL names_only = FALSE;
2510 optionlist *ol2 = NULL;
2511 driver_instance *d = NULL;
2522 static uschar *types[] = { US"address", US"domain", US"host",
2524 static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor,
2525 &hostlist_anchor, &localpartlist_anchor };
2527 for (i = 0; i < 4; i++)
2529 t = tree_search(*(anchors[i]), name+1);
2534 printf("%s\n", ((namedlist_block *)(t->data.ptr))->string);
2536 printf("%slist %s = %s\n", types[i], name+1,
2537 ((namedlist_block *)(t->data.ptr))->string);
2542 printf("no address, domain, host, or local part list called \"%s\" "
2543 "exists\n", name+1);
2548 if (Ustrcmp(name, "configure_file") == 0)
2550 printf("%s\n", CS config_main_filename);
2554 if (Ustrcmp(name, "all") == 0)
2556 for (ol = optionlist_config;
2557 ol < optionlist_config + optionlist_config_size; ol++)
2559 if ((ol->type & opt_hidden) == 0)
2560 print_ol(ol, US ol->name, NULL,
2561 optionlist_config, optionlist_config_size,
2567 if (Ustrcmp(name, "local_scan") == 0)
2569 #ifndef LOCAL_SCAN_HAS_OPTIONS
2570 printf("local_scan() options are not supported\n");
2572 for (ol = local_scan_options;
2573 ol < local_scan_options + local_scan_options_count; ol++)
2575 print_ol(ol, US ol->name, NULL, local_scan_options,
2576 local_scan_options_count, no_labels);
2582 if (Ustrcmp(name, "routers") == 0)
2587 else if (Ustrcmp(name, "transports") == 0)
2589 type = US"transport";
2593 else if (Ustrcmp(name, "authenticators") == 0)
2595 type = US"authenticator";
2599 else if (Ustrcmp(name, "macros") == 0)
2605 else if (Ustrcmp(name, "router_list") == 0)
2612 else if (Ustrcmp(name, "transport_list") == 0)
2614 type = US"transport";
2619 else if (Ustrcmp(name, "authenticator_list") == 0)
2621 type = US"authenticator";
2626 else if (Ustrcmp(name, "macro_list") == 0)
2635 print_ol(find_option(name, optionlist_config, optionlist_config_size),
2636 name, NULL, optionlist_config, optionlist_config_size, no_labels);
2641 /* Handle the options for a router or transport. Skip options that are flagged
2642 as hidden. Some of these are options with names starting with '*', used for
2643 internal alternative representations of other options (which the printing
2644 function will sort out). Others are synonyms kept for backward compatibility.
2647 if (Ustrcmp(type, "router") == 0)
2649 d = (driver_instance *)routers;
2650 ol2 = optionlist_routers;
2651 size = optionlist_routers_size;
2653 else if (Ustrcmp(type, "transport") == 0)
2655 d = (driver_instance *)transports;
2656 ol2 = optionlist_transports;
2657 size = optionlist_transports_size;
2659 else if (Ustrcmp(type, "authenticator") == 0)
2661 d = (driver_instance *)auths;
2662 ol2 = optionlist_auths;
2663 size = optionlist_auths_size;
2666 else if (Ustrcmp(type, "macro") == 0)
2668 /* People store passwords in macros and they were previously not available
2669 for printing. So we have an admin_users restriction. */
2672 fprintf(stderr, "exim: permission denied\n");
2675 for (m = macros; m != NULL; m = m->next)
2677 if (name == NULL || Ustrcmp(name, m->name) == 0)
2680 printf("%s\n", CS m->name);
2682 printf("%s=%s\n", CS m->name, CS m->replacement);
2688 printf("%s %s not found\n", type, name);
2694 for (; d != NULL; d = d->next) printf("%s\n", CS d->name);
2698 /* Either search for a given driver, or print all of them */
2700 for (; d != NULL; d = d->next)
2703 printf("\n%s %s:\n", d->name, type);
2704 else if (Ustrcmp(d->name, name) != 0) continue;
2706 for (ol = ol2; ol < ol2 + size; ol++)
2708 if ((ol->type & opt_hidden) == 0)
2709 print_ol(ol, US ol->name, d, ol2, size, no_labels);
2712 for (ol = d->info->options;
2713 ol < d->info->options + *(d->info->options_count); ol++)
2715 if ((ol->type & opt_hidden) == 0)
2716 print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels);
2718 if (name != NULL) return;
2720 if (name != NULL) printf("%s %s not found\n", type, name);
2725 /*************************************************
2726 * Read a named list item *
2727 *************************************************/
2729 /* This function reads a name and a list (i.e. string). The name is used to
2730 save the list in a tree, sorted by its name. Each entry also has a number,
2731 which can be used for caching tests, but if the string contains any expansion
2732 items other than $key, the number is set negative to inhibit caching. This
2733 mechanism is used for domain, host, and address lists that are referenced by
2737 anchorp points to the tree anchor
2738 numberp points to the current number for this tree
2739 max the maximum number permitted
2740 s the text of the option line, starting immediately after the name
2742 tname the name of the list type, for messages
2748 read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s,
2751 BOOL forcecache = FALSE;
2754 namedlist_block *nb = store_get(sizeof(namedlist_block));
2756 if (Ustrncmp(s, "_cache", 6) == 0)
2763 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line");
2765 if (*numberp >= max)
2766 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n",
2769 while (isspace(*s)) s++;
2771 while (isalnum(*s) || *s == '_') s++;
2772 t = store_get(sizeof(tree_node) + s-ss);
2773 Ustrncpy(t->name, ss, s-ss);
2775 while (isspace(*s)) s++;
2777 if (!tree_insertnode(anchorp, t))
2778 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2779 "duplicate name \"%s\" for a named %s", t->name, tname);
2782 nb->number = *numberp;
2785 if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2786 "missing '=' after \"%s\"", t->name);
2787 while (isspace(*s)) s++;
2788 nb->string = read_string(s, t->name);
2789 nb->cache_data = NULL;
2791 /* Check the string for any expansions; if any are found, mark this list
2792 uncacheable unless the user has explicited forced caching. */
2794 if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1;
2800 /*************************************************
2801 * Unpick data for a rate limit *
2802 *************************************************/
2804 /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four
2808 s string, in the form t,b,f,l
2809 where t is the threshold (integer)
2810 b is the initial delay (time)
2811 f is the multiplicative factor (fixed point)
2812 k is the maximum time (time)
2813 threshold where to store threshold
2814 base where to store base in milliseconds
2815 factor where to store factor in milliseconds
2816 limit where to store limit
2818 Returns: nothing (panics on error)
2822 unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor,
2825 uschar bstring[16], lstring[16];
2827 if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring,
2828 factor, lstring) == 4)
2830 *base = readconf_readtime(bstring, 0, TRUE);
2831 *limit = readconf_readtime(lstring, 0, TRUE);
2832 if (*base >= 0 && *limit >= 0) return;
2834 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s);
2840 /*************************************************
2841 * Drop privs for checking TLS config *
2842 *************************************************/
2844 /* We want to validate TLS options during readconf, but do not want to be
2845 root when we call into the TLS library, in case of library linkage errors
2846 which cause segfaults; before this check, those were always done as the Exim
2847 runtime user and it makes sense to continue with that.
2849 Assumes: tls_require_ciphers has been set, if it will be
2850 exim_user has been set, if it will be
2851 exim_group has been set, if it will be
2853 Returns: bool for "okay"; false will cause caller to immediately exit.
2858 tls_dropprivs_validate_require_cipher(void)
2860 const uschar *errmsg;
2863 void (*oldsignal)(int);
2865 oldsignal = signal(SIGCHLD, SIG_DFL);
2868 if ((pid = fork()) < 0)
2869 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check");
2873 /* in some modes, will have dropped privilege already */
2875 exim_setugid(exim_uid, exim_gid, FALSE,
2876 US"calling tls_validate_require_cipher");
2878 errmsg = tls_validate_require_cipher();
2881 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
2882 "tls_require_ciphers invalid: %s", errmsg);
2889 rc = waitpid(pid, &status, 0);
2890 } while (rc < 0 && errno == EINTR);
2893 debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n",
2896 signal(SIGCHLD, oldsignal);
2900 #endif /* SUPPORT_TLS */
2905 /*************************************************
2906 * Read main configuration options *
2907 *************************************************/
2909 /* This function is the first to be called for configuration reading. It
2910 opens the configuration file and reads general configuration settings until
2911 it reaches the end of the configuration section. The file is then left open so
2912 that the remaining configuration data can subsequently be read if needed for
2915 The configuration file must be owned either by root or exim, and be writeable
2916 only by root or uid/gid exim. The values for Exim's uid and gid can be changed
2917 in the config file, so the test is done on the compiled in values. A slight
2918 anomaly, to be carefully documented.
2920 The name of the configuration file is taken from a list that is included in the
2921 binary of Exim. It can be altered from the command line, but if that is done,
2922 root privilege is immediately withdrawn unless the caller is root or exim.
2923 The first file on the list that exists is used.
2925 For use on multiple systems that share file systems, first look for a
2926 configuration file whose name has the current node name on the end. If that is
2927 not found, try the generic name. For really contorted configurations, that run
2928 multiple Exims with different uid settings, first try adding the effective uid
2929 before the node name. These complications are going to waste resources on most
2930 systems. Therefore they are available only when requested by compile-time
2937 struct stat statbuf;
2938 uschar *s, *filename;
2939 uschar *list = config_main_filelist;
2941 /* Loop through the possible file names */
2943 while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
2946 /* Cut out all the fancy processing unless specifically wanted */
2948 #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
2949 uschar *suffix = filename + Ustrlen(filename);
2951 /* Try for the node-specific file if a node name exists */
2953 #ifdef CONFIGURE_FILE_USE_NODE
2955 if (uname(&uts) >= 0)
2957 #ifdef CONFIGURE_FILE_USE_EUID
2958 sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename);
2959 config_file = Ufopen(filename, "rb");
2960 if (config_file == NULL)
2961 #endif /* CONFIGURE_FILE_USE_EUID */
2963 sprintf(CS suffix, ".%.256s", uts.nodename);
2964 config_file = Ufopen(filename, "rb");
2967 #endif /* CONFIGURE_FILE_USE_NODE */
2969 /* Otherwise, try the generic name, possibly with the euid added */
2971 #ifdef CONFIGURE_FILE_USE_EUID
2972 if (config_file == NULL)
2974 sprintf(CS suffix, ".%ld", (long int)original_euid);
2975 config_file = Ufopen(filename, "rb");
2977 #endif /* CONFIGURE_FILE_USE_EUID */
2979 /* Finally, try the unadorned name */
2981 if (config_file == NULL)
2984 config_file = Ufopen(filename, "rb");
2986 #else /* if neither defined */
2988 /* This is the common case when the fancy processing is not included. */
2990 config_file = Ufopen(filename, "rb");
2993 /* If the file does not exist, continue to try any others. For any other
2994 error, break out (and die). */
2996 if (config_file != NULL || errno != ENOENT) break;
2999 /* On success, save the name for verification; config_filename is used when
3000 logging configuration errors (it changes for .included files) whereas
3001 config_main_filename is the name shown by -bP. Failure to open a configuration
3002 file is a serious disaster. */
3004 if (config_file != NULL)
3006 config_filename = config_main_filename = string_copy(filename);
3010 if (filename == NULL)
3011 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): "
3012 "%s", config_main_filelist);
3014 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno,
3015 "configuration file %s", filename));
3018 /* Check the status of the file we have opened, if we have retained root
3019 privileges and the file isn't /dev/null (which *should* be 0666). */
3021 if (trusted_config && Ustrcmp(filename, US"/dev/null"))
3023 if (fstat(fileno(config_file), &statbuf) != 0)
3024 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s",
3027 if ((statbuf.st_uid != root_uid /* owner not root */
3028 #ifdef CONFIGURE_OWNER
3029 && statbuf.st_uid != config_uid /* owner not the special one */
3032 (statbuf.st_gid != root_gid /* group not root & */
3033 #ifdef CONFIGURE_GROUP
3034 && statbuf.st_gid != config_gid /* group not the special one */
3036 && (statbuf.st_mode & 020) != 0) || /* group writeable */
3038 ((statbuf.st_mode & 2) != 0)) /* world writeable */
3040 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the "
3041 "wrong owner, group, or mode", big_buffer);
3044 /* Process the main configuration settings. They all begin with a lower case
3045 letter. If we see something starting with an upper case letter, it is taken as
3046 a macro definition. */
3048 while ((s = get_config_line()) != NULL)
3050 if (isupper(s[0])) read_macro_assignment(s);
3052 else if (Ustrncmp(s, "domainlist", 10) == 0)
3053 read_named_list(&domainlist_anchor, &domainlist_count,
3054 MAX_NAMED_LIST, s+10, US"domain list");
3056 else if (Ustrncmp(s, "hostlist", 8) == 0)
3057 read_named_list(&hostlist_anchor, &hostlist_count,
3058 MAX_NAMED_LIST, s+8, US"host list");
3060 else if (Ustrncmp(s, US"addresslist", 11) == 0)
3061 read_named_list(&addresslist_anchor, &addresslist_count,
3062 MAX_NAMED_LIST, s+11, US"address list");
3064 else if (Ustrncmp(s, US"localpartlist", 13) == 0)
3065 read_named_list(&localpartlist_anchor, &localpartlist_count,
3066 MAX_NAMED_LIST, s+13, US"local part list");
3069 (void) readconf_handle_option(s, optionlist_config, optionlist_config_size,
3070 NULL, US"main option \"%s\" unknown");
3074 /* If local_sender_retain is set, local_from_check must be unset. */
3076 if (local_sender_retain && local_from_check)
3077 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and "
3078 "local_sender_retain are set; this combination is not allowed");
3080 /* If the timezone string is empty, set it to NULL, implying no TZ variable
3083 if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL;
3085 /* The max retry interval must not be greater than 24 hours. */
3087 if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60;
3089 /* remote_max_parallel must be > 0 */
3091 if (remote_max_parallel <= 0) remote_max_parallel = 1;
3093 /* Save the configured setting of freeze_tell, so we can re-instate it at the
3094 start of a new SMTP message. */
3096 freeze_tell_config = freeze_tell;
3098 /* The primary host name may be required for expansion of spool_directory
3099 and log_file_path, so make sure it is set asap. It is obtained from uname(),
3100 but if that yields an unqualified value, make a FQDN by using gethostbyname to
3101 canonize it. Some people like upper case letters in their host names, so we
3102 don't force the case. */
3104 if (primary_hostname == NULL)
3108 if (uname(&uts) < 0)
3109 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name");
3110 hostname = US uts.nodename;
3112 if (Ustrchr(hostname, '.') == NULL)
3115 struct hostent *hostdata;
3118 if (!disable_ipv6 && (dns_ipv4_lookup == NULL ||
3119 match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN,
3129 #if HAVE_GETIPNODEBYNAME
3131 hostdata = getipnodebyname(CS hostname, af, 0, &error_num);
3133 hostdata = gethostbyname2(CS hostname, af);
3136 hostdata = gethostbyname(CS hostname);
3139 if (hostdata != NULL)
3141 hostname = US hostdata->h_name;
3145 if (af == AF_INET) break;
3150 primary_hostname = string_copy(hostname);
3153 /* Set up default value for smtp_active_hostname */
3155 smtp_active_hostname = primary_hostname;
3157 /* If spool_directory wasn't set in the build-time configuration, it must have
3158 got set above. Of course, writing to the log may not work if log_file_path is
3159 not set, but it will at least get to syslog or somewhere, with any luck. */
3161 if (*spool_directory == 0)
3162 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot "
3165 /* Expand the spool directory name; it may, for example, contain the primary
3166 host name. Same comment about failure. */
3168 s = expand_string(spool_directory);
3170 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory "
3171 "\"%s\": %s", spool_directory, expand_string_message);
3172 spool_directory = s;
3174 /* Expand log_file_path, which must contain "%s" in any component that isn't
3175 the null string or "syslog". It is also allowed to contain one instance of %D
3176 or %M. However, it must NOT contain % followed by anything else. */
3178 if (*log_file_path != 0)
3181 int sep = ':'; /* Fixed for log file path */
3182 s = expand_string(log_file_path);
3184 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path "
3185 "\"%s\": %s", log_file_path, expand_string_message);
3188 while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL)
3191 if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue;
3192 t = Ustrstr(sss, "%s");
3194 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not "
3195 "contain \"%%s\"", sss);
3197 t = Ustrchr(sss, '%');
3200 if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL)
3201 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains "
3202 "unexpected \"%%\" character", s);
3209 /* Interpret syslog_facility into an integer argument for 'ident' param to
3210 openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the
3213 if (syslog_facility_str != NULL)
3216 uschar *s = syslog_facility_str;
3218 if ((Ustrlen(syslog_facility_str) >= 4) &&
3219 (strncmpic(syslog_facility_str, US"log_", 4) == 0))
3222 for (i = 0; i < syslog_list_size; i++)
3224 if (strcmpic(s, syslog_list[i].name) == 0)
3226 syslog_facility = syslog_list[i].value;
3231 if (i >= syslog_list_size)
3233 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3234 "failed to interpret syslog_facility \"%s\"", syslog_facility_str);
3238 /* Expand pid_file_path */
3240 if (*pid_file_path != 0)
3242 s = expand_string(pid_file_path);
3244 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path "
3245 "\"%s\": %s", pid_file_path, expand_string_message);
3249 /* Set default value of process_log_path */
3251 if (process_log_path == NULL || *process_log_path =='\0')
3252 process_log_path = string_sprintf("%s/exim-process.info", spool_directory);
3254 /* Compile the regex for matching a UUCP-style "From_" line in an incoming
3257 regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE);
3259 /* Unpick the SMTP rate limiting options, if set */
3261 if (smtp_ratelimit_mail != NULL)
3263 unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold,
3264 &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit);
3267 if (smtp_ratelimit_rcpt != NULL)
3269 unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold,
3270 &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit);
3273 /* The qualify domains default to the primary host name */
3275 if (qualify_domain_sender == NULL)
3276 qualify_domain_sender = primary_hostname;
3277 if (qualify_domain_recipient == NULL)
3278 qualify_domain_recipient = qualify_domain_sender;
3280 /* Setting system_filter_user in the configuration sets the gid as well if a
3281 name is given, but a numerical value does not. */
3283 if (system_filter_uid_set && !system_filter_gid_set)
3285 struct passwd *pw = getpwuid(system_filter_uid);
3287 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld",
3288 (long int)system_filter_uid);
3289 system_filter_gid = pw->pw_gid;
3290 system_filter_gid_set = TRUE;
3293 /* If the errors_reply_to field is set, check that it is syntactically valid
3294 and ensure it contains a domain. */
3296 if (errors_reply_to != NULL)
3299 int start, end, domain;
3300 uschar *recipient = parse_extract_address(errors_reply_to, &errmess,
3301 &start, &end, &domain, FALSE);
3303 if (recipient == NULL)
3304 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3305 "error in errors_reply_to (%s): %s", errors_reply_to, errmess);
3308 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3309 "errors_reply_to (%s) does not contain a domain", errors_reply_to);
3312 /* If smtp_accept_queue or smtp_accept_max_per_host is set, then
3313 smtp_accept_max must also be set. */
3315 if (smtp_accept_max == 0 &&
3316 (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL))
3317 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3318 "smtp_accept_max must be set if smtp_accept_queue or "
3319 "smtp_accept_max_per_host is set");
3321 /* Set up the host number if anything is specified. It is an expanded string
3322 so that it can be computed from the host name, for example. We do this last
3323 so as to ensure that everything else is set up before the expansion. */
3325 if (host_number_string != NULL)
3329 uschar *s = expand_string(host_number_string);
3331 log_write(0, LOG_MAIN|LOG_PANIC_DIE,
3332 "failed to expand localhost_number \"%s\": %s",
3333 host_number_string, expand_string_message);
3334 n = Ustrtol(s, &end, 0);
3335 while (isspace(*end)) end++;
3337 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3338 "localhost_number value is not a number: %s", s);
3339 if (n > LOCALHOST_MAX)
3340 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3341 "localhost_number is greater than the maximum allowed value (%d)",
3347 /* If tls_verify_hosts is set, tls_verify_certificates must also be set */
3349 if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) &&
3350 tls_verify_certificates == NULL)
3351 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3352 "tls_%sverify_hosts is set, but tls_verify_certificates is not set",
3353 (tls_verify_hosts != NULL)? "" : "try_");
3355 /* This also checks that the library linkage is working and we can call
3356 routines in it, so call even if tls_require_ciphers is unset */
3357 if (!tls_dropprivs_validate_require_cipher())
3360 /* Magic number: at time of writing, 1024 has been the long-standing value
3361 used by so many clients, and what Exim used to use always, that it makes
3362 sense to just min-clamp this max-clamp at that. */
3363 if (tls_dh_max_bits < 1024)
3364 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3365 "tls_dh_max_bits is too small, must be at least 1024 for interop");
3367 /* If openssl_options is set, validate it */
3368 if (openssl_options != NULL)
3371 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3372 "openssl_options is set but we're using GnuTLS");
3375 if (!(tls_openssl_options_parse(openssl_options, &dummy)))
3376 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3377 "openssl_options parse error: %s", openssl_options);
3381 if (gnutls_require_kx || gnutls_require_mac || gnutls_require_proto)
3382 log_write(0, LOG_MAIN, "WARNING: main options"
3383 " gnutls_require_kx, gnutls_require_mac and gnutls_require_protocols"
3385 #endif /*SUPPORT_TLS*/
3390 /*************************************************
3391 * Initialize one driver *
3392 *************************************************/
3394 /* This is called once the driver's generic options, if any, have been read.
3395 We can now find the driver, set up defaults for the private options, and
3396 unset any "set" bits in the private options table (which might have been
3397 set by another incarnation of the same driver).
3400 d pointer to driver instance block, with generic
3402 drivers_available vector of available drivers
3403 size_of_info size of each block in drivers_available
3404 class class of driver, for error message
3406 Returns: pointer to the driver info block
3409 static driver_info *
3410 init_driver(driver_instance *d, driver_info *drivers_available,
3411 int size_of_info, uschar *class)
3415 for (dd = drivers_available; dd->driver_name[0] != 0;
3416 dd = (driver_info *)(((uschar *)dd) + size_of_info))
3418 if (Ustrcmp(d->driver_name, dd->driver_name) == 0)
3421 int len = dd->options_len;
3423 d->options_block = store_get(len);
3424 memcpy(d->options_block, dd->options_block, len);
3425 for (i = 0; i < *(dd->options_count); i++)
3426 dd->options[i].type &= ~opt_set;
3431 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3432 "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name);
3434 return NULL; /* never obeyed */
3440 /*************************************************
3441 * Initialize driver list *
3442 *************************************************/
3444 /* This function is called for routers, transports, and authentication
3445 mechanisms. It reads the data from the current point in the configuration file
3446 up to the end of the section, and sets up a chain of instance blocks according
3447 to the file's contents. The file will already have been opened by a call to
3448 readconf_main, and must be left open for subsequent reading of further data.
3450 Any errors cause a panic crash. Note that the blocks with names driver_info and
3451 driver_instance must map the first portions of all the _info and _instance
3452 blocks for this shared code to work.
3455 class "router", "transport", or "authenticator"
3456 anchor &routers, &transports, &auths
3457 drivers_available available drivers
3458 size_of_info size of each info block
3459 instance_default points to default data for an instance
3460 instance_size size of instance block
3461 driver_optionlist generic option list
3462 driver_optionlist_count count of generic option list
3468 readconf_driver_init(
3470 driver_instance **anchor,
3471 driver_info *drivers_available,
3473 void *instance_default,
3475 optionlist *driver_optionlist,
3476 int driver_optionlist_count)
3478 driver_instance **p = anchor;
3479 driver_instance *d = NULL;
3482 while ((buffer = get_config_line()) != NULL)
3487 /* Read the first name on the line and test for the start of a new driver. A
3488 macro definition indicates the end of the previous driver. If this isn't the
3489 start of a new driver, the line will be re-read. */
3491 s = readconf_readname(name, sizeof(name), buffer);
3493 /* Handle macro definition, first finishing off the initialization of the
3494 previous driver, if any. */
3496 if (isupper(*name) && *s == '=')
3500 if (d->driver_name == NULL)
3501 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3502 "no driver defined for %s \"%s\"", class, d->name);
3506 read_macro_assignment(buffer);
3510 /* If the line starts with a name terminated by a colon, we are at the
3511 start of the definition of a new driver. The rest of the line must be
3518 /* Finish off initializing the previous driver. */
3522 if (d->driver_name == NULL)
3523 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3524 "no driver defined for %s \"%s\"", class, d->name);
3528 /* Check that we haven't already got a driver of this name */
3530 for (d = *anchor; d != NULL; d = d->next)
3531 if (Ustrcmp(name, d->name) == 0)
3532 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3533 "there are two %ss called \"%s\"", class, name);
3535 /* Set up a new driver instance data block on the chain, with
3536 its default values installed. */
3538 d = store_get(instance_size);
3539 memcpy(d, instance_default, instance_size);
3542 d->name = string_copy(name);
3544 /* Clear out the "set" bits in the generic options */
3546 for (i = 0; i < driver_optionlist_count; i++)
3547 driver_optionlist[i].type &= ~opt_set;
3549 /* Check nothing more on this line, then do the next loop iteration. */
3551 while (isspace(*s)) s++;
3552 if (*s != 0) extra_chars_error(s, US"driver name ", name, US"");
3556 /* Not the start of a new driver. Give an error if we have not set up a
3557 current driver yet. */
3559 if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3560 "%s name missing", class);
3562 /* First look to see if this is a generic option; if it is "driver",
3563 initialize the driver. If is it not a generic option, we can look for a
3564 private option provided that the driver has been previously set up. */
3566 if (readconf_handle_option(buffer, driver_optionlist,
3567 driver_optionlist_count, d, NULL))
3569 if (d->info == NULL && d->driver_name != NULL)
3570 init_driver(d, drivers_available, size_of_info, class);
3573 /* Handle private options - pass the generic block because some may
3574 live therein. A flag with each option indicates if it is in the public
3577 else if (d->info != NULL)
3579 readconf_handle_option(buffer, d->info->options,
3580 *(d->info->options_count), d, US"option \"%s\" unknown");
3583 /* The option is not generic and the driver name has not yet been given. */
3585 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown "
3586 "(\"driver\" must be specified before any private options)", name);
3589 /* Run the initialization function for the final driver. */
3593 if (d->driver_name == NULL)
3594 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3595 "no driver defined for %s \"%s\"", class, d->name);
3602 /*************************************************
3603 * Check driver dependency *
3604 *************************************************/
3606 /* This function is passed a driver instance and a string. It checks whether
3607 any of the string options for the driver contains the given string as an
3611 d points to a driver instance block
3612 s the string to search for
3614 Returns: TRUE if a dependency is found
3618 readconf_depends(driver_instance *d, uschar *s)
3620 int count = *(d->info->options_count);
3624 for (ol = d->info->options; ol < d->info->options + count; ol++)
3626 void *options_block;
3628 int type = ol->type & opt_mask;
3629 if (type != opt_stringptr) continue;
3630 options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d;
3631 value = *(uschar **)((uschar *)options_block + (long int)(ol->value));
3632 if (value != NULL && (ss = Ustrstr(value, s)) != NULL)
3634 if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') ||
3635 isalnum(ss[Ustrlen(s)])) continue;
3636 DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n",
3637 d->name, ol->name, s);
3642 DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s);
3649 /*************************************************
3650 * Decode an error type for retries *
3651 *************************************************/
3653 /* This function is global because it is also called from the main
3654 program when testing retry information. It decodes strings such as "quota_7d"
3655 into numerical error codes.
3658 pp points to start of text
3659 p points past end of text
3660 basic_errno points to an int to receive the main error number
3661 more_errno points to an int to receive the secondary error data
3663 Returns: NULL if decoded correctly; else points to error text
3667 readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno)
3671 while (q < p && *q != '_') q++;
3674 if (len == 5 && strncmpic(pp, US"quota", len) == 0)
3676 *basic_errno = ERRNO_EXIMQUOTA;
3677 if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0)
3678 return US"bad time value";
3681 else if (len == 7 && strncmpic(pp, US"refused", len) == 0)
3683 *basic_errno = ECONNREFUSED;
3686 if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M';
3687 else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A';
3688 else return US"A or MX expected after \"refused\"";
3692 else if (len == 7 && strncmpic(pp, US"timeout", len) == 0)
3694 *basic_errno = ETIMEDOUT;
3698 int xlen = p - q - 1;
3701 static uschar *extras[] =
3702 { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" };
3703 static int values[] =
3704 { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' };
3706 for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++)
3708 if (strncmpic(x, extras[i], xlen) == 0)
3710 *more_errno = values[i];
3715 if (i >= sizeof(extras)/sizeof(uschar *))
3717 if (strncmpic(x, US"DNS", xlen) == 0)
3719 log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer "
3720 "available in retry rules (it has never worked) - treated as "
3723 else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\"";
3728 else if (strncmpic(pp, US"mail_4", 6) == 0 ||
3729 strncmpic(pp, US"rcpt_4", 6) == 0 ||
3730 strncmpic(pp, US"data_4", 6) == 0)
3733 int x = 255; /* means "any 4xx code" */
3734 if (p != pp + 8) bad = TRUE; else
3736 int a = pp[6], b = pp[7];
3740 if (isdigit(b)) x += b - '0';
3741 else if (b == 'x') x += 100;
3744 else if (a != 'x' || b != 'x') bad = TRUE;
3748 return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where "
3749 "x is literal and d is any digit", pp);
3751 *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX :
3752 (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX;
3753 *more_errno = x << 8;
3756 else if (len == 4 && strncmpic(pp, US"auth", len) == 0 &&
3757 strncmpic(q+1, US"failed", p-q-1) == 0)
3758 *basic_errno = ERRNO_AUTHFAIL;
3760 else if (strncmpic(pp, US"lost_connection", p - pp) == 0)
3761 *basic_errno = ERRNO_SMTPCLOSED;
3763 else if (strncmpic(pp, US"tls_required", p - pp) == 0)
3764 *basic_errno = ERRNO_TLSREQUIRED;
3766 else if (len != 1 || Ustrncmp(pp, "*", 1) != 0)
3767 return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp);
3775 /*************************************************
3776 * Read retry information *
3777 *************************************************/
3779 /* Each line of retry information contains:
3781 . A domain name pattern or an address pattern;
3783 . An error name, possibly with additional data, or *;
3785 . An optional sequence of retry items, each consisting of an identifying
3786 letter, a cutoff time, and optional parameters.
3788 All this is decoded and placed into a control block. */
3791 /* Subroutine to read an argument, preceded by a comma and terminated
3792 by comma, semicolon, whitespace, or newline. The types are: 0 = time value,
3793 1 = fixed point number (returned *1000).
3796 paddr pointer to pointer to current character; updated
3797 type 0 => read a time; 1 => read a fixed point number
3799 Returns: time in seconds or fixed point number * 1000
3803 retry_arg(uschar **paddr, int type)
3808 if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected");
3810 while (isspace(*p)) p++;
3812 while (isalnum(*p) || (type == 1 && *p == '.')) p++;
3814 if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';')
3815 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected");
3821 return readconf_readtime(pp, *p, FALSE);
3823 return readconf_readfixed(pp, *p);
3825 return 0; /* Keep picky compilers happy */
3828 /* The function proper */
3831 readconf_retries(void)
3833 retry_config **chain = &retries;
3837 while ((p = get_config_line()) != NULL)
3839 retry_rule **rchain;
3842 next = store_get(sizeof(retry_config));
3845 chain = &(next->next);
3846 next->basic_errno = next->more_errno = 0;
3847 next->senders = NULL;
3849 rchain = &(next->rules);
3851 next->pattern = string_dequote(&p);
3852 while (isspace(*p)) p++;
3854 while (mac_isgraph(*p)) p++;
3855 if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3856 "missing error type in retry rule");
3858 /* Test error names for things we understand. */
3860 if ((error = readconf_retry_error(pp, p, &(next->basic_errno),
3861 &(next->more_errno))) != NULL)
3862 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error);
3864 /* There may be an optional address list of senders to be used as another
3865 constraint on the rule. This was added later, so the syntax is a bit of a
3866 fudge. Anything that is not a retry rule starting "F," or "G," is treated as
3869 while (isspace(*p)) p++;
3870 if (Ustrncmp(p, "senders", 7) == 0)
3873 while (isspace(*p)) p++;
3874 if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3875 "\"=\" expected after \"senders\" in retry rule");
3876 while (isspace(*p)) p++;
3877 next->senders = string_dequote(&p);
3880 /* Now the retry rules. Keep the maximum timeout encountered. */
3882 while (isspace(*p)) p++;
3886 retry_rule *rule = store_get(sizeof(retry_rule));
3888 rchain = &(rule->next);
3890 rule->rule = toupper(*p++);
3891 rule->timeout = retry_arg(&p, 0);
3892 if (rule->timeout > retry_maximum_timeout)
3893 retry_maximum_timeout = rule->timeout;
3897 case 'F': /* Fixed interval */
3898 rule->p1 = retry_arg(&p, 0);
3901 case 'G': /* Geometrically increasing intervals */
3902 case 'H': /* Ditto, but with randomness */
3903 rule->p1 = retry_arg(&p, 0);
3904 rule->p2 = retry_arg(&p, 1);
3908 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter");
3912 if (rule->timeout <= 0 || rule->p1 <= 0 ||
3913 (rule->rule != 'F' && rule->p2 < 1000))
3914 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3915 "bad parameters for retry rule");
3917 while (isspace(*p)) p++;
3921 while (isspace(*p)) p++;
3924 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected");
3931 /*************************************************
3932 * Initialize authenticators *
3933 *************************************************/
3935 /* Read the authenticators section of the configuration file.
3944 auth_instance *au, *bu;
3945 readconf_driver_init(US"authenticator",
3946 (driver_instance **)(&auths), /* chain anchor */
3947 (driver_info *)auths_available, /* available drivers */
3948 sizeof(auth_info), /* size of info block */
3949 &auth_defaults, /* default values for generic options */
3950 sizeof(auth_instance), /* size of instance block */
3951 optionlist_auths, /* generic options */
3952 optionlist_auths_size);
3954 for (au = auths; au != NULL; au = au->next)
3956 if (au->public_name == NULL)
3957 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for "
3958 "the %s authenticator", au->name);
3959 for (bu = au->next; bu != NULL; bu = bu->next)
3961 if (strcmpic(au->public_name, bu->public_name) == 0)
3963 if ((au->client && bu->client) || (au->server && bu->server))
3964 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators "
3965 "(%s and %s) have the same public name (%s)",
3966 (au->client)? US"client" : US"server", au->name, bu->name,
3976 /*************************************************
3977 * Read ACL information *
3978 *************************************************/
3980 /* If this run of Exim is not doing something that involves receiving a
3981 message, we can just skip over the ACL information. No need to parse it.
3983 First, we have a function for acl_read() to call back to get the next line. We
3984 need to remember the line we passed, because at the end it will contain the
3985 name of the next ACL. */
3987 static uschar *acl_line;
3992 acl_line = get_config_line();
3997 /* Now the main function:
4008 /* Read each ACL and add it into the tree. Macro (re)definitions are allowed
4011 acl_line = get_config_line();
4013 while(acl_line != NULL)
4019 p = readconf_readname(name, sizeof(name), acl_line);
4020 if (isupper(*name) && *p == '=')
4022 read_macro_assignment(acl_line);
4023 acl_line = get_config_line();
4027 if (*p != ':' || name[0] == 0)
4028 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name");
4030 node = store_get(sizeof(tree_node) + Ustrlen(name));
4031 Ustrcpy(node->name, name);
4032 if (!tree_insertnode(&acl_anchor, node))
4033 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4034 "there are two ACLs called \"%s\"", name);
4036 node->data.ptr = acl_read(acl_callback, &error);
4038 if (node->data.ptr == NULL && error != NULL)
4039 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error);
4045 /*************************************************
4046 * Read configuration for local_scan() *
4047 *************************************************/
4049 /* This function is called after "begin local_scan" is encountered in the
4050 configuration file. If the local_scan() function allows for configuration
4051 options, we can process them. Otherwise, we expire in a panic.
4058 local_scan_init(void)
4060 #ifndef LOCAL_SCAN_HAS_OPTIONS
4061 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: "
4062 "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)");
4066 while ((p = get_config_line()) != NULL)
4068 (void) readconf_handle_option(p, local_scan_options, local_scan_options_count,
4069 NULL, US"local_scan option \"%s\" unknown");
4076 /*************************************************
4077 * Read rest of configuration (after main) *
4078 *************************************************/
4080 /* This function reads the rest of the runtime configuration, after the main
4081 configuration. It is called only when actually needed. Each subsequent section
4082 of the configuration starts with a line of the form
4086 where the name is "routers", "transports", etc. A section is terminated by
4087 hitting the next "begin" line, and the next name is left in next_section.
4088 Because it may confuse people as to whether the names are singular or plural,
4089 we add "s" if it's missing. There is always enough room in next_section for
4090 this. This function is basically just a switch.
4096 static uschar *section_list[] = {
4110 while(next_section[0] != 0)
4114 int last = sizeof(section_list) / sizeof(uschar *);
4116 int n = Ustrlen(next_section);
4118 if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s");
4122 int c = strcmpic(next_section, section_list[mid]);
4124 if (c > 0) first = mid + 1; else last = mid;
4126 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4127 "\"%.*s\" is not a known configuration section name", n, next_section);
4128 mid = (last + first)/2;
4132 if (((had ^= bit) & bit) == 0)
4133 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4134 "\"%.*s\" section is repeated in the configuration file", n,
4139 case 0: readconf_acl(); break;
4140 case 1: auths_init(); break;
4141 case 2: local_scan_init(); break;
4142 case 3: readconf_retries(); break;
4143 case 4: readconf_rewrites(); break;
4144 case 5: route_init(); break;
4145 case 6: transport_init(); break;
4149 (void)fclose(config_file);
4154 /* End of readconf.c */