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 ENABLE_DISABLE_FSYNC
209 { "disable_fsync", opt_bool, &disable_fsync },
211 { "disable_ipv6", opt_bool, &disable_ipv6 },
213 { "dkim_verify_signers", opt_stringptr, &dkim_verify_signers },
215 #ifdef EXPERIMENTAL_DMARC
216 { "dmarc_forensic_sender", opt_stringptr, &dmarc_forensic_sender },
217 { "dmarc_history_file", opt_stringptr, &dmarc_history_file },
218 { "dmarc_tld_file", opt_stringptr, &dmarc_tld_file },
220 { "dns_again_means_nonexist", opt_stringptr, &dns_again_means_nonexist },
221 { "dns_check_names_pattern", opt_stringptr, &check_dns_names_pattern },
222 { "dns_csa_search_limit", opt_int, &dns_csa_search_limit },
223 { "dns_csa_use_reverse", opt_bool, &dns_csa_use_reverse },
224 { "dns_dnssec_ok", opt_int, &dns_dnssec_ok },
225 { "dns_ipv4_lookup", opt_stringptr, &dns_ipv4_lookup },
226 { "dns_retrans", opt_time, &dns_retrans },
227 { "dns_retry", opt_int, &dns_retry },
228 { "dns_use_edns0", opt_int, &dns_use_edns0 },
229 /* This option is now a no-op, retained for compability */
230 { "drop_cr", opt_bool, &drop_cr },
231 /*********************************************************/
232 #ifdef EXPERIMENTAL_DSN
233 { "dsn_advertise_hosts", opt_stringptr, &dsn_advertise_hosts },
235 { "dsn_from", opt_stringptr, &dsn_from },
236 { "envelope_to_remove", opt_bool, &envelope_to_remove },
237 { "errors_copy", opt_stringptr, &errors_copy },
238 { "errors_reply_to", opt_stringptr, &errors_reply_to },
239 #ifdef EXPERIMENTAL_EVENT
240 { "event_action", opt_stringptr, &event_action },
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; 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; i++)
513 optionlist * op = &ti->options[i];
514 if ((op->type & opt_mask) != opt_stringptr) continue;
515 if (p == ( op->type & opt_public
517 : (char *)t->options_block
519 + (long int)op->value)
530 /*************************************************
531 * Deal with an assignment to a macro *
532 *************************************************/
534 /* This function is called when a line that starts with an upper case letter is
535 encountered. The argument "line" should contain a complete logical line, and
536 start with the first letter of the macro name. The macro name and the
537 replacement text are extracted and stored. Redefinition of existing,
538 non-command line, macros is permitted using '==' instead of '='.
541 s points to the start of the logical line
547 read_macro_assignment(uschar *s)
553 macro_item *mlast = NULL;
555 while (isalnum(*s) || *s == '_')
557 if (namelen >= sizeof(name) - 1)
558 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
559 "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1);
560 name[namelen++] = *s++;
564 while (isspace(*s)) s++;
566 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition");
573 while (isspace(*s)) s++;
575 /* If an existing macro of the same name was defined on the command line, we
576 just skip this definition. It's an error to attempt to redefine a macro without
577 redef set to TRUE, or to redefine a macro when it hasn't been defined earlier.
578 It is also an error to define a macro whose name begins with the name of a
579 previously defined macro. Note: it is documented that the other way round
582 for (m = macros; m != NULL; m = m->next)
584 int len = Ustrlen(m->name);
586 if (Ustrcmp(m->name, name) == 0)
588 if (!m->command_line && !redef)
589 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already "
590 "defined (use \"==\" if you want to redefine it", name);
594 if (len < namelen && Ustrstr(name, m->name) != NULL)
595 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
596 "a macro because previously defined macro \"%s\" is a substring",
599 /* We cannot have this test, because it is documented that a substring
600 macro is permitted (there is even an example).
602 * if (len > namelen && Ustrstr(m->name, name) != NULL)
603 * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
604 * "a macro because it is a substring of previously defined macro \"%s\"",
611 /* Check for an overriding command-line definition. */
613 if (m != NULL && m->command_line) return;
615 /* Redefinition must refer to an existing macro. */
620 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro "
624 /* We have a new definition. The macro_item structure includes a final vector
625 called "name" which is one byte long. Thus, adding "namelen" gives us enough
626 room to store the "name" string. */
630 m = store_get(sizeof(macro_item) + namelen);
631 if (macros == NULL) macros = m; else mlast->next = m;
632 Ustrncpy(m->name, name, namelen);
633 m->name[namelen] = 0;
635 m->command_line = FALSE;
638 /* Set the value of the new or redefined macro */
640 m->replacement = string_copy(s);
647 /*************************************************
648 * Read configuration line *
649 *************************************************/
651 /* A logical line of text is read from the configuration file into the big
652 buffer, taking account of macros, .includes, and continuations. The size of
653 big_buffer is increased if necessary. The count of configuration lines is
654 maintained. Physical input lines starting with # (ignoring leading white space,
655 and after macro replacement) and empty logical lines are always ignored.
656 Leading and trailing spaces are removed.
658 If we hit a line of the form "begin xxxx", the xxxx is placed in the
659 next_section vector, and the function returns NULL, indicating the end of a
660 configuration section. On end-of-file, NULL is returned with next_section
665 Returns: a pointer to the first non-blank in the line,
666 or NULL if eof or end of section is reached
670 get_config_line(void)
672 int startoffset = 0; /* To first non-blank char in logical line */
673 int len = 0; /* Of logical line so far */
679 /* Loop for handling continuation lines, skipping comments, and dealing with
684 if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL)
686 if (config_file_stack != NULL) /* EOF inside .include */
688 (void)fclose(config_file);
689 config_file = config_file_stack->file;
690 config_filename = config_file_stack->filename;
691 config_lineno = config_file_stack->lineno;
692 config_file_stack = config_file_stack->next;
696 /* EOF at top level */
698 if (cstate_stack_ptr >= 0)
699 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
700 "Unexpected end of configuration file: .endif missing");
702 if (len != 0) break; /* EOF after continuation */
703 next_section[0] = 0; /* EOF at start of logical line */
708 newlen = len + Ustrlen(big_buffer + len);
710 /* Handle pathologically long physical lines - yes, it did happen - by
711 extending big_buffer at this point. The code also copes with very long
714 while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n')
717 big_buffer_size += BIG_BUFFER_SIZE;
718 newbuffer = store_malloc(big_buffer_size);
720 /* This use of strcpy is OK because we know that the string in the old
721 buffer is shorter than the new buffer. */
723 Ustrcpy(newbuffer, big_buffer);
724 store_free(big_buffer);
725 big_buffer = newbuffer;
726 if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL)
728 newlen += Ustrlen(big_buffer + newlen);
731 /* Find the true start of the physical line - leading spaces are always
734 ss = big_buffer + len;
735 while (isspace(*ss)) ss++;
737 /* Process the physical line for macros. If this is the start of the logical
738 line, skip over initial text at the start of the line if it starts with an
739 upper case character followed by a sequence of name characters and an equals
740 sign, because that is the definition of a new macro, and we don't do
741 replacement therein. */
744 if (len == 0 && isupper(*s))
746 while (isalnum(*s) || *s == '_') s++;
747 while (isspace(*s)) s++;
748 if (*s != '=') s = ss; /* Not a macro definition */
751 /* For each defined macro, scan the line (from after XXX= if present),
752 replacing all occurrences of the macro. */
755 for (m = macros; m != NULL; m = m->next)
760 while ((p = Ustrstr(t, m->name)) != NULL)
763 int namelen = Ustrlen(m->name);
764 int replen = Ustrlen(m->replacement);
766 /* Expand the buffer if necessary */
768 while (newlen - namelen + replen + 1 > big_buffer_size)
770 int newsize = big_buffer_size + BIG_BUFFER_SIZE;
771 uschar *newbuffer = store_malloc(newsize);
772 memcpy(newbuffer, big_buffer, newlen + 1);
773 p = newbuffer + (p - big_buffer);
774 s = newbuffer + (s - big_buffer);
775 ss = newbuffer + (ss - big_buffer);
776 t = newbuffer + (t - big_buffer);
777 big_buffer_size = newsize;
778 store_free(big_buffer);
779 big_buffer = newbuffer;
782 /* Shuffle the remaining characters up or down in the buffer before
783 copying in the replacement text. Don't rescan the replacement for this
787 moveby = replen - namelen;
790 memmove(p + replen, pp, (big_buffer + newlen) - pp + 1);
793 Ustrncpy(p, m->replacement, replen);
799 /* An empty macro replacement at the start of a line could mean that ss no
800 longer points to the first non-blank character. */
802 while (isspace(*ss)) ss++;
804 /* Check for comment lines - these are physical lines. */
806 if (*ss == '#') continue;
808 /* Handle conditionals, which are also applied to physical lines. Conditions
809 are of the form ".ifdef ANYTEXT" and are treated as true if any macro
810 expansion occured on the rest of the line. A preliminary test for the leading
811 '.' saves effort on most lines. */
817 /* Search the list of conditional directives */
819 for (i = 0; i < cond_list_size; i++)
822 cond_item *c = cond_list+i;
823 if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue;
825 /* The following character must be white space or end of string */
827 n = ss[1 + c->namelen];
828 if (n != ' ' && n != 't' && n != '\n' && n != 0) break;
830 /* .ifdef and .ifndef push the current state onto the stack, then set
831 a new one from the table. Stack overflow is an error */
835 if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1)
836 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
837 ".%s nested too deeply", c->name);
838 cstate_stack[++cstate_stack_ptr] = cstate;
839 cstate = next_cstate[cstate][macro_found? c->action1 : c->action2];
842 /* For any of the others, stack underflow is an error. The next state
843 comes either from the stack (.endif) or from the table. */
847 if (cstate_stack_ptr < 0)
848 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
849 ".%s without matching .ifdef", c->name);
850 cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] :
851 next_cstate[cstate][macro_found? c->action1 : c->action2];
854 /* Having dealt with a directive, break the loop */
859 /* If we have handled a conditional directive, continue with the next
860 physical line. Otherwise, fall through. */
862 if (i < cond_list_size) continue;
865 /* If the conditional state is not 0 (actively using these lines), ignore
868 if (cstate != 0) continue; /* Conditional skip */
870 /* Handle .include lines - these are also physical lines. */
872 if (Ustrncmp(ss, ".include", 8) == 0 &&
874 (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18]))))
877 int include_if_exists = isspace(ss[8])? 0 : 10;
878 config_file_item *save;
881 ss += 9 + include_if_exists;
882 while (isspace(*ss)) ss++;
883 t = ss + Ustrlen(ss);
884 while (t > ss && isspace(t[-1])) t--;
885 if (*ss == '\"' && t[-1] == '\"')
893 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-"
894 "absolute path \"%s\"", ss);
896 if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue;
898 save = store_get(sizeof(config_file_item));
899 save->next = config_file_stack;
900 config_file_stack = save;
901 save->file = config_file;
902 save->filename = config_filename;
903 save->lineno = config_lineno;
905 config_file = Ufopen(ss, "rb");
906 if (config_file == NULL)
907 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included "
908 "configuration file %s", ss);
909 config_filename = string_copy(ss);
914 /* If this is the start of the logical line, remember where the non-blank
915 data starts. Otherwise shuffle down continuation lines to remove leading
919 startoffset = ss - big_buffer;
922 s = big_buffer + len;
925 memmove(s, ss, (newlen - len) - (ss - s) + 1);
930 /* Accept the new addition to the line. Remove trailing white space. */
933 while (len > 0 && isspace(big_buffer[len-1])) len--;
936 /* We are done if the line does not end in backslash and contains some data.
937 Empty logical lines are ignored. For continuations, remove the backslash and
938 go round the loop to read the continuation line. */
942 if (big_buffer[len-1] != '\\') break; /* End of logical line */
943 big_buffer[--len] = 0; /* Remove backslash */
945 } /* Loop for reading multiple physical lines */
947 /* We now have a logical line. Test for the end of a configuration section (or,
948 more accurately, for the start of the next section). Place the name of the next
949 section in next_section, and return NULL. If the name given is longer than
950 next_section, truncate it. It will be unrecognized later, because all the known
951 section names do fit. Leave space for pluralizing. */
953 s = big_buffer + startoffset; /* First non-space character */
954 if (strncmpic(s, US"begin ", 6) == 0)
957 while (isspace(*s)) s++;
958 if (big_buffer + len - s > sizeof(next_section) - 2)
959 s[sizeof(next_section) - 2] = 0;
960 Ustrcpy(next_section, s);
964 /* Return the first non-blank character. */
971 /*************************************************
973 *************************************************/
975 /* The yield is the pointer to the next uschar. Names longer than the
976 output space are silently truncated. This function is also used from acl.c when
980 name where to put the name
984 Returns: new input pointer
988 readconf_readname(uschar *name, int len, uschar *s)
991 while (isspace(*s)) s++;
994 while (isalnum(*s) || *s == '_')
996 if (p < len-1) name[p++] = *s;
1001 while (isspace(*s)) s++;
1008 /*************************************************
1009 * Read a time value *
1010 *************************************************/
1012 /* This function is also called from outside, to read argument
1013 time values. The format of a time value is:
1015 [<n>w][<n>d][<n>h][<n>m][<n>s]
1017 as long as at least one is present. If a format error is encountered,
1018 return a negative value. The value must be terminated by the given
1023 terminator required terminating character
1024 return_msec if TRUE, allow fractional seconds and return milliseconds
1026 Returns: the time value, or -1 on syntax error
1027 value is seconds if return_msec is FALSE
1028 value is milliseconds if return_msec is TRUE
1032 readconf_readtime(uschar *s, int terminator, BOOL return_msec)
1040 if (!isdigit(*s)) return -1;
1041 (void)sscanf(CS s, "%d%n", &value, &count);
1046 case 'w': value *= 7;
1047 case 'd': value *= 24;
1048 case 'h': value *= 60;
1049 case 'm': value *= 60;
1054 if (!return_msec) return -1;
1055 (void)sscanf(CS s, "%lf%n", &fraction, &count);
1057 if (*s++ != 's') return -1;
1058 yield += (int)(fraction * 1000.0);
1064 if (return_msec) value *= 1000;
1066 if (*s == terminator) return yield;
1068 /* Control never reaches here. */
1073 /*************************************************
1074 * Read a fixed point value *
1075 *************************************************/
1077 /* The value is returned *1000
1081 terminator required terminator
1083 Returns: the value, or -1 on error
1087 readconf_readfixed(uschar *s, int terminator)
1091 if (!isdigit(*s)) return -1;
1092 (void)sscanf(CS s, "%d%n", &value, &count);
1094 yield = value * 1000;
1098 while (isdigit((*(++s))))
1100 yield += (*s - '0') * m;
1105 return (*s == terminator)? yield : (-1);
1110 /*************************************************
1111 * Find option in list *
1112 *************************************************/
1114 /* The lists are always in order, so binary chop can be used.
1117 name the option name to search for
1118 ol the first entry in the option list
1119 last one more than the offset of the last entry in the option list
1121 Returns: pointer to an option entry, or NULL if not found
1125 find_option(uschar *name, optionlist *ol, int last)
1128 while (last > first)
1130 int middle = (first + last)/2;
1131 int c = Ustrcmp(name, ol[middle].name);
1132 if (c == 0) return ol + middle;
1133 else if (c > 0) first = middle + 1;
1141 /*************************************************
1142 * Find a set flag in option list *
1143 *************************************************/
1145 /* Because some versions of Unix make no restrictions on the values of uids and
1146 gids (even negative ones), we cannot represent "unset" by a special value.
1147 There is therefore a separate boolean variable for each one indicating whether
1148 a value is set or not. This function returns a pointer to the boolean, given
1149 the original option name. It is a major disaster if the flag cannot be found.
1152 name the name of the uid or gid option
1153 oltop points to the start of the relevant option list
1154 last one more than the offset of the last item in the option list
1155 data_block NULL when reading main options => data values in the option
1156 list are absolute addresses; otherwise they are byte offsets
1157 in data_block (used for driver options)
1159 Returns: a pointer to the boolean flag.
1163 get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block)
1167 sprintf(CS name2, "*set_%.50s", name);
1168 ol = find_option(name2, oltop, last);
1169 if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE,
1170 "Exim internal error: missing set flag for %s", name);
1171 return (data_block == NULL)? (BOOL *)(ol->value) :
1172 (BOOL *)((uschar *)data_block + (long int)(ol->value));
1178 /*************************************************
1179 * Output extra characters message and die *
1180 *************************************************/
1182 /* Called when an option line has junk on the end. Sometimes this is because
1183 the sysadmin thinks comments are permitted.
1186 s points to the extra characters
1187 t1..t3 strings to insert in the log message
1189 Returns: doesn't return; dies
1193 extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3)
1195 uschar *comment = US"";
1196 if (*s == '#') comment = US" (# is comment only at line start)";
1197 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1198 "extra characters follow %s%s%s%s", t1, t2, t3, comment);
1203 /*************************************************
1204 * Read rewrite information *
1205 *************************************************/
1207 /* Each line of rewrite information contains:
1209 . A complete address in the form user@domain, possibly with
1210 leading * for each part; or alternatively, a regex.
1212 . A replacement string (which will be expanded).
1214 . An optional sequence of one-letter flags, indicating which
1215 headers etc. to apply this rule to.
1217 All this is decoded and placed into a control block. The OR of the flags is
1218 maintained in a common word.
1221 p points to the string that makes up the rule
1222 existflags points to the overall flag word
1223 isglobal TRUE if reading global rewrite rules
1225 Returns: the control block for the parsed rule.
1228 static rewrite_rule *
1229 readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal)
1231 rewrite_rule *next = store_get(sizeof(rewrite_rule));
1234 next->key = string_dequote(&p);
1236 while (isspace(*p)) p++;
1238 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1239 "missing rewrite replacement string");
1242 next->replacement = string_dequote(&p);
1244 while (*p != 0) switch (*p++)
1246 case ' ': case '\t': break;
1248 case 'q': next->flags |= rewrite_quit; break;
1249 case 'w': next->flags |= rewrite_whole; break;
1251 case 'h': next->flags |= rewrite_all_headers; break;
1252 case 's': next->flags |= rewrite_sender; break;
1253 case 'f': next->flags |= rewrite_from; break;
1254 case 't': next->flags |= rewrite_to; break;
1255 case 'c': next->flags |= rewrite_cc; break;
1256 case 'b': next->flags |= rewrite_bcc; break;
1257 case 'r': next->flags |= rewrite_replyto; break;
1259 case 'E': next->flags |= rewrite_all_envelope; break;
1260 case 'F': next->flags |= rewrite_envfrom; break;
1261 case 'T': next->flags |= rewrite_envto; break;
1263 case 'Q': next->flags |= rewrite_qualify; break;
1264 case 'R': next->flags |= rewrite_repeat; break;
1267 next->flags |= rewrite_smtp;
1268 if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0)
1269 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1270 "rewrite rule has the S flag but is not a regular expression");
1274 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1275 "unknown rewrite flag character '%c' "
1276 "(could be missing quotes round replacement item)", p[-1]);
1280 /* If no action flags are set, set all the "normal" rewrites. */
1282 if ((next->flags & (rewrite_all | rewrite_smtp)) == 0)
1283 next->flags |= isglobal? rewrite_all : rewrite_all_headers;
1285 /* Remember which exist, for optimization, and return the rule */
1287 *existflags |= next->flags;
1294 /*************************************************
1295 * Read global rewrite information *
1296 *************************************************/
1298 /* Each line is a single rewrite rule; it is parsed into a control block
1299 by readconf_one_rewrite(), and its flags are ORed into the global flag
1300 word rewrite_existflags. */
1303 readconf_rewrites(void)
1305 rewrite_rule **chain = &global_rewrite_rules;
1308 while ((p = get_config_line()) != NULL)
1310 rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE);
1312 chain = &(next->next);
1318 /*************************************************
1320 *************************************************/
1322 /* Strings are read into the normal store pool. As long we aren't too
1323 near the end of the current block, the string will just use what is necessary
1324 on the top of the stacking pool, because string_cat() uses the extension
1328 s the rest of the input line
1329 name the option name (for errors)
1331 Returns: pointer to the string
1335 read_string(uschar *s, uschar *name)
1340 if (*s != '\"') return string_copy(s);
1343 yield = string_dequote(&s);
1345 if (s == ss+1 || s[-1] != '\"')
1346 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1347 "missing quote at end of string value for %s", name);
1349 if (*s != 0) extra_chars_error(s, US"string value for ", name, US"");
1355 /*************************************************
1356 * Handle option line *
1357 *************************************************/
1359 /* This function is called from several places to process a line containing the
1360 setting of an option. The first argument is the line to be decoded; it has been
1361 checked not to be empty and not to start with '#'. Trailing newlines and white
1362 space have been removed. The second argument is a pointer to the list of
1363 variable names that are to be recognized, together with their types and
1364 locations, and the third argument gives the number of entries in the list.
1366 The fourth argument is a pointer to a data block. If it is NULL, then the data
1367 values in the options list are absolute addresses. Otherwise, they are byte
1368 offsets in the data block.
1370 String option data may continue onto several lines; this function reads further
1371 data from config_file if necessary.
1373 The yield of this function is normally zero. If a string continues onto
1374 multiple lines, then the data value is permitted to be followed by a comma
1375 or a semicolon (for use in drivers) and the yield is that character.
1378 buffer contains the configuration line to be handled
1379 oltop points to the start of the relevant option list
1380 last one more than the offset of the last item in the option list
1381 data_block NULL when reading main options => data values in the option
1382 list are absolute addresses; otherwise they are byte offsets
1383 in data_block when they have opt_public set; otherwise
1384 they are byte offsets in data_block->options_block.
1385 unknown_txt format string to use in panic message for unknown option;
1386 must contain %s for option name
1387 if given as NULL, don't panic on unknown option
1389 Returns: TRUE if an option was read successfully,
1390 FALSE false for an unknown option if unknown_txt == NULL,
1391 otherwise panic and die on an unknown option
1395 readconf_handle_option(uschar *buffer, optionlist *oltop, int last,
1396 void *data_block, uschar *unknown_txt)
1400 int n, count, type, value;
1404 BOOL boolvalue = TRUE;
1405 BOOL freesptr = TRUE;
1406 optionlist *ol, *ol2;
1410 uschar *inttype = US"";
1413 uschar *saved_condition, *strtemp;
1414 uschar **str_target;
1418 /* There may be leading spaces; thereafter, we expect an option name starting
1421 while (isspace(*s)) s++;
1423 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s);
1425 /* Read the name of the option, and skip any subsequent white space. If
1426 it turns out that what we read was "hide", set the flag indicating that
1427 this is a secure option, and loop to read the next word. */
1429 for (n = 0; n < 2; n++)
1431 while (isalnum(*s) || *s == '_')
1433 if (ptr < sizeof(name)-1) name[ptr++] = *s;
1437 while (isspace(*s)) s++;
1438 if (Ustrcmp(name, "hide") != 0) break;
1439 issecure = opt_secure;
1443 /* Deal with "no_" or "not_" here for booleans */
1445 if (Ustrncmp(name, "no_", 3) == 0)
1451 if (Ustrncmp(name, "not_", 4) == 0)
1457 /* Search the list for the given name. A non-existent name, or an option that
1458 is set twice, is a disaster. */
1460 ol = find_option(name + offset, oltop, last);
1464 if (unknown_txt == NULL) return FALSE;
1465 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name);
1468 if ((ol->type & opt_set) && !(ol->type & (opt_rep_con | opt_rep_str)))
1469 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1470 "\"%s\" option set for the second time", name);
1472 ol->type |= opt_set | issecure;
1473 type = ol->type & opt_mask;
1475 /* Types with data values must be followed by '='; the "no[t]_" prefix
1476 applies only to boolean values. */
1478 if (type < opt_bool || type > opt_bool_last)
1481 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1482 "negation prefix applied to a non-boolean option");
1484 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1485 "unexpected end of line (data missing) after %s", name);
1487 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name);
1490 /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and
1491 true/false/yes/no, or, in the case of opt_expanded_bool, a general string that
1492 ultimately expands to one of those values. */
1494 else if (*s != 0 && (offset != 0 || *s != '='))
1495 extra_chars_error(s, US"boolean option ", name, US"");
1497 /* Skip white space after = */
1499 if (*s == '=') while (isspace((*(++s))));
1501 /* If there is a data block and the opt_public flag is not set, change
1502 the data block pointer to the private options block. */
1504 if (data_block != NULL && (ol->type & opt_public) == 0)
1505 data_block = (void *)(((driver_instance *)data_block)->options_block);
1507 /* Now get the data according to the type. */
1511 /* If a string value is not enclosed in quotes, it consists of
1512 the rest of the current line, verbatim. Otherwise, string escapes
1515 A transport is specified as a string, which is then looked up in the
1516 list of transports. A search type is specified as one of a number of
1519 A set or rewrite rules for a driver is specified as a string, which is
1520 then parsed into a suitable chain of control blocks.
1522 Uids and gids are specified as strings which are then looked up in the
1523 passwd file. Lists of uids and gids are similarly specified as colon-
1524 separated strings. */
1529 case opt_expand_uid:
1530 case opt_expand_gid:
1535 reset_point = sptr = read_string(s, name);
1537 /* Having read a string, we now have several different ways of using it,
1538 depending on the data type, so do another switch. If keeping the actual
1539 string is not required (because it is interpreted), freesptr is set TRUE,
1540 and at the end we reset the pool. */
1544 /* If this was a string, set the variable to point to the new string,
1545 and set the flag so its store isn't reclaimed. If it was a list of rewrite
1546 rules, we still keep the string (for printing), and parse the rules into a
1547 control block and flags word. */
1550 if (data_block == NULL)
1551 str_target = (uschar **)(ol->value);
1553 str_target = (uschar **)((uschar *)data_block + (long int)(ol->value));
1554 if (ol->type & opt_rep_con)
1556 /* We already have a condition, we're conducting a crude hack to let
1557 multiple condition rules be chained together, despite storing them in
1559 saved_condition = *str_target;
1560 strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}",
1561 saved_condition, sptr);
1562 *str_target = string_copy_malloc(strtemp);
1563 /* TODO(pdp): there is a memory leak here and just below
1564 when we set 3 or more conditions; I still don't
1565 understand the store mechanism enough to know
1566 what's the safe way to free content from an earlier store.
1567 AFAICT, stores stack, so freeing an early stored item also stores
1568 all data alloc'd after it. If we knew conditions were adjacent,
1569 we could survive that, but we don't. So I *think* we need to take
1570 another bit from opt_type to indicate "malloced"; this seems like
1571 quite a hack, especially for this one case. It also means that
1572 we can't ever reclaim the store from the *first* condition.
1574 Because we only do this once, near process start-up, I'm prepared to
1575 let this slide for the time being, even though it rankles. */
1577 else if (ol->type & opt_rep_str)
1579 uschar sep = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':';
1582 /* Strip trailing whitespace and seperators */
1583 for (cp = sptr + Ustrlen(sptr) - 1;
1584 cp >= sptr && (*cp == '\n' || *cp == '\t' || *cp == ' ' || *cp == sep);
1588 *str_target = string_copy_malloc(
1589 *str_target ? string_sprintf("%s%c%s", *str_target, sep, sptr)
1600 if (data_block == NULL)
1601 *((uschar **)(ol->value)) = sptr;
1603 *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr;
1605 if (type == opt_rewrite)
1610 rewrite_rule **chain;
1613 sprintf(CS name2, "*%.50s_rules", name);
1614 ol2 = find_option(name2, oltop, last);
1615 sprintf(CS name2, "*%.50s_flags", name);
1616 ol3 = find_option(name2, oltop, last);
1618 if (ol2 == NULL || ol3 == NULL)
1619 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1620 "rewrite rules not available for driver");
1622 if (data_block == NULL)
1624 chain = (rewrite_rule **)(ol2->value);
1625 flagptr = (int *)(ol3->value);
1629 chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value));
1630 flagptr = (int *)((uschar *)data_block + (long int)(ol3->value));
1633 while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE))
1636 rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE);
1638 chain = &(next->next);
1641 if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0)
1642 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a "
1643 "non-header rewrite - not allowed at transport time -");
1647 /* If it was an expanded uid, see if there is any expansion to be
1648 done by checking for the presence of a $ character. If there is, save it
1649 in the corresponding *expand_user option field. Otherwise, fall through
1650 to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds
1653 case opt_expand_uid:
1654 sprintf(CS name2, "*expand_%.50s", name);
1655 ol2 = find_option(name2, oltop, last);
1658 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1660 if (data_block == NULL)
1661 *((uschar **)(ol2->value)) = ss;
1663 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1667 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1673 /* Look up a fixed uid, and also make use of the corresponding gid
1674 if a passwd entry is returned and the gid has not been set. */
1677 if (!route_finduser(sptr, &pw, &uid))
1678 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr);
1679 if (data_block == NULL)
1680 *((uid_t *)(ol->value)) = uid;
1682 *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid;
1684 /* Set the flag indicating a fixed value is set */
1686 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1688 /* Handle matching gid if we have a passwd entry: done by finding the
1689 same name with terminating "user" changed to "group"; if not found,
1690 ignore. Also ignore if the value is already set. */
1692 if (pw == NULL) break;
1693 Ustrcpy(name+Ustrlen(name)-4, "group");
1694 ol2 = find_option(name, oltop, last);
1695 if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid ||
1696 (ol2->type & opt_mask) == opt_expand_gid))
1698 BOOL *set_flag = get_set_flag(name, oltop, last, data_block);
1701 if (data_block == NULL)
1702 *((gid_t *)(ol2->value)) = pw->pw_gid;
1704 *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid;
1710 /* If it was an expanded gid, see if there is any expansion to be
1711 done by checking for the presence of a $ character. If there is, save it
1712 in the corresponding *expand_user option field. Otherwise, fall through
1713 to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds
1716 case opt_expand_gid:
1717 sprintf(CS name2, "*expand_%.50s", name);
1718 ol2 = find_option(name2, oltop, last);
1721 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1723 if (data_block == NULL)
1724 *((uschar **)(ol2->value)) = ss;
1726 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1730 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1736 /* Handle freestanding gid */
1739 if (!route_findgroup(sptr, &gid))
1740 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr);
1741 if (data_block == NULL)
1742 *((gid_t *)(ol->value)) = gid;
1744 *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid;
1745 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1748 /* If it was a uid list, look up each individual entry, and build
1749 a vector of uids, with a count in the first element. Put the vector
1750 in malloc store so we can free the string. (We are reading into
1751 permanent store already.) */
1759 uschar *op = expand_string (sptr);
1762 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1763 name, expand_string_message);
1766 if (*p != 0) count++;
1767 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1768 list = store_malloc(count*sizeof(uid_t));
1769 list[ptr++] = (uid_t)(count - 1);
1771 if (data_block == NULL)
1772 *((uid_t **)(ol->value)) = list;
1774 *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1780 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1781 if (!route_finduser(big_buffer, NULL, &uid))
1782 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found",
1789 /* If it was a gid list, look up each individual entry, and build
1790 a vector of gids, with a count in the first element. Put the vector
1791 in malloc store so we can free the string. (We are reading into permanent
1800 uschar *op = expand_string (sptr);
1803 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1804 name, expand_string_message);
1807 if (*p != 0) count++;
1808 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1809 list = store_malloc(count*sizeof(gid_t));
1810 list[ptr++] = (gid_t)(count - 1);
1812 if (data_block == NULL)
1813 *((gid_t **)(ol->value)) = list;
1815 *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1821 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1822 if (!route_findgroup(big_buffer, &gid))
1823 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found",
1831 /* Release store if the value of the string doesn't need to be kept. */
1833 if (freesptr) store_reset(reset_point);
1836 /* Expanded boolean: if no characters follow, or if there are no dollar
1837 characters, this is a fixed-valued boolean, and we fall through. Otherwise,
1838 save the string for later expansion in the alternate place. */
1840 case opt_expand_bool:
1841 if (*s != 0 && Ustrchr(s, '$') != 0)
1843 sprintf(CS name2, "*expand_%.50s", name);
1844 ol2 = find_option(name2, oltop, last);
1847 reset_point = sptr = read_string(s, name);
1848 if (data_block == NULL)
1849 *((uschar **)(ol2->value)) = sptr;
1851 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr;
1858 /* Boolean: if no characters follow, the value is boolvalue. Otherwise
1859 look for yes/not/true/false. Some booleans are stored in a single bit in
1860 a single int. There's a special fudge for verify settings; without a suffix
1861 they set both xx_sender and xx_recipient. The table points to the sender
1862 value; search subsequently for the recipient. There's another special case:
1863 opt_bool_set also notes when a boolean has been set. */
1867 case opt_bool_verify:
1871 s = readconf_readname(name2, 64, s);
1872 if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0)
1874 else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0)
1876 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1877 "\"%s\" is not a valid value for the \"%s\" option", name2, name);
1878 if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2),
1879 US"for boolean option ", name);
1882 /* Handle single-bit type. */
1884 if (type == opt_bit)
1886 int bit = 1 << ((ol->type >> 16) & 31);
1887 int *ptr = (data_block == NULL)?
1888 (int *)(ol->value) :
1889 (int *)((uschar *)data_block + (long int)ol->value);
1890 if (boolvalue) *ptr |= bit; else *ptr &= ~bit;
1894 /* Handle full BOOL types */
1896 if (data_block == NULL)
1897 *((BOOL *)(ol->value)) = boolvalue;
1899 *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue;
1903 if (type == opt_bool_verify)
1905 sprintf(CS name2, "%.50s_recipient", name + offset);
1906 ol2 = find_option(name2, oltop, last);
1909 if (data_block == NULL)
1910 *((BOOL *)(ol2->value)) = boolvalue;
1912 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue;
1916 /* Note that opt_bool_set type is set, if there is somewhere to do so */
1918 else if (type == opt_bool_set)
1920 sprintf(CS name2, "*set_%.50s", name + offset);
1921 ol2 = find_option(name2, oltop, last);
1924 if (data_block == NULL)
1925 *((BOOL *)(ol2->value)) = TRUE;
1927 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE;
1936 inttype = US"octal ";
1938 /* Integer: a simple(ish) case; allow octal and hex formats, and
1939 suffixes K and M. The different types affect output, not input. */
1948 lvalue = strtol(CS s, CSS &endptr, intbase);
1951 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1954 if (errno != ERANGE)
1956 if (tolower(*endptr) == 'k')
1958 if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE;
1959 else lvalue *= 1024;
1962 else if (tolower(*endptr) == 'm')
1964 if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024))
1966 else lvalue *= 1024*1024;
1971 if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN)
1972 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1973 "absolute value of integer \"%s\" is too large (overflow)", s);
1975 while (isspace(*endptr)) endptr++;
1977 extra_chars_error(endptr, inttype, US"integer value for ", name);
1979 value = (int)lvalue;
1982 if (data_block == NULL)
1983 *((int *)(ol->value)) = value;
1985 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
1988 /* Integer held in K: again, allow octal and hex formats, and suffixes K and
1995 value = strtol(CS s, CSS &endptr, intbase);
1998 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
2001 if (errno != ERANGE)
2003 if (tolower(*endptr) == 'm')
2005 if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE;
2009 else if (tolower(*endptr) == 'k')
2015 value = (value + 512)/1024;
2019 if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2020 "absolute value of integer \"%s\" is too large (overflow)", s);
2022 while (isspace(*endptr)) endptr++;
2024 extra_chars_error(endptr, inttype, US"integer value for ", name);
2027 if (data_block == NULL)
2028 *((int *)(ol->value)) = value;
2030 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2033 /* Fixed-point number: held to 3 decimal places. */
2036 if (sscanf(CS s, "%d%n", &value, &count) != 1)
2037 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2038 "fixed-point number expected for %s", name);
2040 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2041 "integer \"%s\" is too large (overflow)", s);
2045 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2046 "integer \"%s\" is too large (overflow)", s);
2048 if (s[count] == '.')
2051 while (isdigit(s[++count]))
2053 value += (s[count] - '0') * d;
2058 while (isspace(s[count])) count++;
2061 extra_chars_error(s+count, US"fixed-point value for ", name, US"");
2063 if (data_block == NULL)
2064 *((int *)(ol->value)) = value;
2066 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2069 /* There's a special routine to read time values. */
2072 value = readconf_readtime(s, 0, FALSE);
2074 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2076 if (data_block == NULL)
2077 *((int *)(ol->value)) = value;
2079 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2082 /* A time list is a list of colon-separated times, with the first
2083 element holding the size of the list and the second the number of
2089 int *list = (data_block == NULL)?
2090 (int *)(ol->value) :
2091 (int *)((uschar *)data_block + (long int)(ol->value));
2093 if (*s != 0) for (count = 1; count <= list[0] - 2; count++)
2096 uschar *snext = Ustrchr(s, ':');
2100 while (ss > s && isspace(ss[-1])) ss--;
2103 value = readconf_readtime(s, terminator, FALSE);
2105 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2107 if (count > 1 && value <= list[count])
2108 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2109 "time value out of order for %s", name);
2110 list[count+1] = value;
2111 if (snext == NULL) break;
2113 while (isspace(*s)) s++;
2116 if (count > list[0] - 2)
2117 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s",
2119 if (count > 0 && list[2] == 0) count = 0;
2131 /*************************************************
2132 * Print a time value *
2133 *************************************************/
2136 Argument: a time value in seconds
2137 Returns: pointer to a fixed buffer containing the time as a string,
2138 in readconf_readtime() format
2142 readconf_printtime(int t)
2145 uschar *p = time_buffer;
2162 if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; }
2163 if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; }
2164 if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; }
2165 if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; }
2166 if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s);
2173 /*************************************************
2174 * Print an individual option value *
2175 *************************************************/
2177 /* This is used by the -bP option, so prints to the standard output.
2178 The entire options list is passed in as an argument, because some options come
2179 in pairs - typically uid/gid settings, which can either be explicit numerical
2180 values, or strings to be expanded later. If the numerical value is unset,
2181 search for "*expand_<name>" to see if there is a string equivalent.
2184 ol option entry, or NULL for an unknown option
2186 options_block NULL for main configuration options; otherwise points to
2187 a driver block; if the option doesn't have opt_public
2188 set, then options_block->options_block is where the item
2190 oltop points to the option list in which ol exists
2191 last one more than the offset of the last entry in optop
2192 no_labels do not show "foo = " at the start.
2198 print_ol(optionlist *ol, uschar *name, void *options_block,
2199 optionlist *oltop, int last, BOOL no_labels)
2212 printf("%s is not a known option\n", name);
2216 /* Non-admin callers cannot see options that have been flagged secure by the
2219 if (!admin_user && (ol->type & opt_secure) != 0)
2221 const char * const hidden = "<value not displayable>";
2223 printf("%s\n", hidden);
2225 printf("%s = %s\n", name, hidden);
2229 /* Else show the value of the option */
2232 if (options_block != NULL)
2234 if ((ol->type & opt_public) == 0)
2235 options_block = (void *)(((driver_instance *)options_block)->options_block);
2236 value = (void *)((uschar *)options_block + (long int)value);
2239 switch(ol->type & opt_mask)
2242 case opt_rewrite: /* Show the text value */
2243 s = *((uschar **)value);
2244 if (!no_labels) printf("%s = ", name);
2245 printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE));
2249 if (!no_labels) printf("%s = ", name);
2250 printf("%d\n", *((int *)value));
2255 int x = *((int *)value);
2256 if (x != 0 && (x & 1023) == 0)
2260 if ((x & 1023) == 0)
2265 if (!no_labels) printf("%s = ", name);
2266 printf("%d%c\n", x, c);
2270 if (!no_labels) printf("%s = ", name);
2278 int x = *((int *)value);
2279 if (!no_labels) printf("%s = ", name);
2280 if (x == 0) printf("0\n");
2281 else if ((x & 1023) == 0) printf("%dM\n", x >> 10);
2282 else printf("%dK\n", x);
2287 if (!no_labels) printf("%s = ", name);
2288 printf("%#o\n", *((int *)value));
2291 /* Can be negative only when "unset", in which case integer */
2295 int x = *((int *)value);
2298 if (x < 0) printf("%s =\n", name); else
2300 if (!no_labels) printf("%s = ", name);
2301 printf("%d.", x/1000);
2314 /* If the numerical value is unset, try for the string value */
2316 case opt_expand_uid:
2317 if (! *get_set_flag(name, oltop, last, options_block))
2319 sprintf(CS name2, "*expand_%.50s", name);
2320 ol2 = find_option(name2, oltop, last);
2323 void *value2 = ol2->value;
2324 if (options_block != NULL)
2325 value2 = (void *)((uschar *)options_block + (long int)value2);
2326 s = *((uschar **)value2);
2327 if (!no_labels) printf("%s = ", name);
2328 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2333 /* Else fall through */
2336 if (!no_labels) printf("%s = ", name);
2337 if (! *get_set_flag(name, oltop, last, options_block))
2341 pw = getpwuid(*((uid_t *)value));
2343 printf("%ld\n", (long int)(*((uid_t *)value)));
2344 else printf("%s\n", pw->pw_name);
2348 /* If the numerical value is unset, try for the string value */
2350 case opt_expand_gid:
2351 if (! *get_set_flag(name, oltop, last, options_block))
2353 sprintf(CS name2, "*expand_%.50s", name);
2354 ol2 = find_option(name2, oltop, last);
2355 if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr)
2357 void *value2 = ol2->value;
2358 if (options_block != NULL)
2359 value2 = (void *)((uschar *)options_block + (long int)value2);
2360 s = *((uschar **)value2);
2361 if (!no_labels) printf("%s = ", name);
2362 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2367 /* Else fall through */
2370 if (!no_labels) printf("%s = ", name);
2371 if (! *get_set_flag(name, oltop, last, options_block))
2375 gr = getgrgid(*((int *)value));
2377 printf("%ld\n", (long int)(*((int *)value)));
2378 else printf("%s\n", gr->gr_name);
2383 uidlist = *((uid_t **)value);
2384 if (!no_labels) printf("%s =", name);
2385 if (uidlist != NULL)
2389 if (no_labels) sep = '\0';
2390 for (i = 1; i <= (int)(uidlist[0]); i++)
2392 uschar *name = NULL;
2393 pw = getpwuid(uidlist[i]);
2394 if (pw != NULL) name = US pw->pw_name;
2395 if (sep != '\0') printf("%c", sep);
2396 if (name != NULL) printf("%s", name);
2397 else printf("%ld", (long int)(uidlist[i]));
2405 gidlist = *((gid_t **)value);
2406 if (!no_labels) printf("%s =", name);
2407 if (gidlist != NULL)
2411 if (no_labels) sep = '\0';
2412 for (i = 1; i <= (int)(gidlist[0]); i++)
2414 uschar *name = NULL;
2415 gr = getgrgid(gidlist[i]);
2416 if (gr != NULL) name = US gr->gr_name;
2417 if (sep != '\0') printf("%c", sep);
2418 if (name != NULL) printf("%s", name);
2419 else printf("%ld", (long int)(gidlist[i]));
2427 if (!no_labels) printf("%s = ", name);
2428 printf("%s\n", readconf_printtime(*((int *)value)));
2434 int *list = (int *)value;
2435 if (!no_labels) printf("%s = ", name);
2436 for (i = 0; i < list[1]; i++)
2437 printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2]));
2443 printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))?
2447 case opt_expand_bool:
2448 sprintf(CS name2, "*expand_%.50s", name);
2449 ol2 = find_option(name2, oltop, last);
2450 if (ol2 != NULL && ol2->value != NULL)
2452 void *value2 = ol2->value;
2453 if (options_block != NULL)
2454 value2 = (void *)((uschar *)options_block + (long int)value2);
2455 s = *((uschar **)value2);
2458 if (!no_labels) printf("%s = ", name);
2459 printf("%s\n", string_printing(s));
2462 /* s == NULL => string not set; fall through */
2468 case opt_bool_verify:
2470 printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name);
2477 /*************************************************
2478 * Print value from main configuration *
2479 *************************************************/
2481 /* This function, called as a result of encountering the -bP option,
2482 causes the value of any main configuration variable to be output if the
2483 second argument is NULL. There are some special values:
2485 all print all main configuration options
2486 configure_file print the name of the configuration file
2487 routers print the routers' configurations
2488 transports print the transports' configuration
2489 authenticators print the authenticators' configuration
2490 macros print the macros' configuration
2491 router_list print a list of router names
2492 transport_list print a list of transport names
2493 authenticator_list print a list of authentication mechanism names
2494 macro_list print a list of macro names
2495 +name print a named list item
2496 local_scan print the local_scan options
2498 If the second argument is not NULL, it must be one of "router", "transport",
2499 "authenticator" or "macro" in which case the first argument identifies the
2500 driver whose options are to be printed.
2503 name option name if type == NULL; else driver name
2504 type NULL or driver type name, as described above
2505 no_labels avoid the "foo = " at the start of an item
2511 readconf_print(uschar *name, uschar *type, BOOL no_labels)
2513 BOOL names_only = FALSE;
2515 optionlist *ol2 = NULL;
2516 driver_instance *d = NULL;
2527 static uschar *types[] = { US"address", US"domain", US"host",
2529 static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor,
2530 &hostlist_anchor, &localpartlist_anchor };
2532 for (i = 0; i < 4; i++)
2534 t = tree_search(*(anchors[i]), name+1);
2539 printf("%s\n", ((namedlist_block *)(t->data.ptr))->string);
2541 printf("%slist %s = %s\n", types[i], name+1,
2542 ((namedlist_block *)(t->data.ptr))->string);
2547 printf("no address, domain, host, or local part list called \"%s\" "
2548 "exists\n", name+1);
2553 if (Ustrcmp(name, "configure_file") == 0)
2555 printf("%s\n", CS config_main_filename);
2559 if (Ustrcmp(name, "all") == 0)
2561 for (ol = optionlist_config;
2562 ol < optionlist_config + optionlist_config_size; ol++)
2564 if ((ol->type & opt_hidden) == 0)
2565 print_ol(ol, US ol->name, NULL,
2566 optionlist_config, optionlist_config_size,
2572 if (Ustrcmp(name, "local_scan") == 0)
2574 #ifndef LOCAL_SCAN_HAS_OPTIONS
2575 printf("local_scan() options are not supported\n");
2577 for (ol = local_scan_options;
2578 ol < local_scan_options + local_scan_options_count; ol++)
2580 print_ol(ol, US ol->name, NULL, local_scan_options,
2581 local_scan_options_count, no_labels);
2587 if (Ustrcmp(name, "routers") == 0)
2592 else if (Ustrcmp(name, "transports") == 0)
2594 type = US"transport";
2598 else if (Ustrcmp(name, "authenticators") == 0)
2600 type = US"authenticator";
2604 else if (Ustrcmp(name, "macros") == 0)
2610 else if (Ustrcmp(name, "router_list") == 0)
2617 else if (Ustrcmp(name, "transport_list") == 0)
2619 type = US"transport";
2624 else if (Ustrcmp(name, "authenticator_list") == 0)
2626 type = US"authenticator";
2631 else if (Ustrcmp(name, "macro_list") == 0)
2640 print_ol(find_option(name, optionlist_config, optionlist_config_size),
2641 name, NULL, optionlist_config, optionlist_config_size, no_labels);
2646 /* Handle the options for a router or transport. Skip options that are flagged
2647 as hidden. Some of these are options with names starting with '*', used for
2648 internal alternative representations of other options (which the printing
2649 function will sort out). Others are synonyms kept for backward compatibility.
2652 if (Ustrcmp(type, "router") == 0)
2654 d = (driver_instance *)routers;
2655 ol2 = optionlist_routers;
2656 size = optionlist_routers_size;
2658 else if (Ustrcmp(type, "transport") == 0)
2660 d = (driver_instance *)transports;
2661 ol2 = optionlist_transports;
2662 size = optionlist_transports_size;
2664 else if (Ustrcmp(type, "authenticator") == 0)
2666 d = (driver_instance *)auths;
2667 ol2 = optionlist_auths;
2668 size = optionlist_auths_size;
2671 else if (Ustrcmp(type, "macro") == 0)
2673 /* People store passwords in macros and they were previously not available
2674 for printing. So we have an admin_users restriction. */
2677 fprintf(stderr, "exim: permission denied\n");
2680 for (m = macros; m != NULL; m = m->next)
2682 if (name == NULL || Ustrcmp(name, m->name) == 0)
2685 printf("%s\n", CS m->name);
2687 printf("%s=%s\n", CS m->name, CS m->replacement);
2693 printf("%s %s not found\n", type, name);
2699 for (; d != NULL; d = d->next) printf("%s\n", CS d->name);
2703 /* Either search for a given driver, or print all of them */
2705 for (; d != NULL; d = d->next)
2708 printf("\n%s %s:\n", d->name, type);
2709 else if (Ustrcmp(d->name, name) != 0) continue;
2711 for (ol = ol2; ol < ol2 + size; ol++)
2713 if ((ol->type & opt_hidden) == 0)
2714 print_ol(ol, US ol->name, d, ol2, size, no_labels);
2717 for (ol = d->info->options;
2718 ol < d->info->options + *(d->info->options_count); ol++)
2720 if ((ol->type & opt_hidden) == 0)
2721 print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels);
2723 if (name != NULL) return;
2725 if (name != NULL) printf("%s %s not found\n", type, name);
2730 /*************************************************
2731 * Read a named list item *
2732 *************************************************/
2734 /* This function reads a name and a list (i.e. string). The name is used to
2735 save the list in a tree, sorted by its name. Each entry also has a number,
2736 which can be used for caching tests, but if the string contains any expansion
2737 items other than $key, the number is set negative to inhibit caching. This
2738 mechanism is used for domain, host, and address lists that are referenced by
2742 anchorp points to the tree anchor
2743 numberp points to the current number for this tree
2744 max the maximum number permitted
2745 s the text of the option line, starting immediately after the name
2747 tname the name of the list type, for messages
2753 read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s,
2756 BOOL forcecache = FALSE;
2759 namedlist_block *nb = store_get(sizeof(namedlist_block));
2761 if (Ustrncmp(s, "_cache", 6) == 0)
2768 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line");
2770 if (*numberp >= max)
2771 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n",
2774 while (isspace(*s)) s++;
2776 while (isalnum(*s) || *s == '_') s++;
2777 t = store_get(sizeof(tree_node) + s-ss);
2778 Ustrncpy(t->name, ss, s-ss);
2780 while (isspace(*s)) s++;
2782 if (!tree_insertnode(anchorp, t))
2783 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2784 "duplicate name \"%s\" for a named %s", t->name, tname);
2787 nb->number = *numberp;
2790 if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2791 "missing '=' after \"%s\"", t->name);
2792 while (isspace(*s)) s++;
2793 nb->string = read_string(s, t->name);
2794 nb->cache_data = NULL;
2796 /* Check the string for any expansions; if any are found, mark this list
2797 uncacheable unless the user has explicited forced caching. */
2799 if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1;
2805 /*************************************************
2806 * Unpick data for a rate limit *
2807 *************************************************/
2809 /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four
2813 s string, in the form t,b,f,l
2814 where t is the threshold (integer)
2815 b is the initial delay (time)
2816 f is the multiplicative factor (fixed point)
2817 k is the maximum time (time)
2818 threshold where to store threshold
2819 base where to store base in milliseconds
2820 factor where to store factor in milliseconds
2821 limit where to store limit
2823 Returns: nothing (panics on error)
2827 unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor,
2830 uschar bstring[16], lstring[16];
2832 if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring,
2833 factor, lstring) == 4)
2835 *base = readconf_readtime(bstring, 0, TRUE);
2836 *limit = readconf_readtime(lstring, 0, TRUE);
2837 if (*base >= 0 && *limit >= 0) return;
2839 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s);
2845 /*************************************************
2846 * Drop privs for checking TLS config *
2847 *************************************************/
2849 /* We want to validate TLS options during readconf, but do not want to be
2850 root when we call into the TLS library, in case of library linkage errors
2851 which cause segfaults; before this check, those were always done as the Exim
2852 runtime user and it makes sense to continue with that.
2854 Assumes: tls_require_ciphers has been set, if it will be
2855 exim_user has been set, if it will be
2856 exim_group has been set, if it will be
2858 Returns: bool for "okay"; false will cause caller to immediately exit.
2863 tls_dropprivs_validate_require_cipher(void)
2865 const uschar *errmsg;
2868 void (*oldsignal)(int);
2870 oldsignal = signal(SIGCHLD, SIG_DFL);
2873 if ((pid = fork()) < 0)
2874 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check");
2878 /* in some modes, will have dropped privilege already */
2880 exim_setugid(exim_uid, exim_gid, FALSE,
2881 US"calling tls_validate_require_cipher");
2883 errmsg = tls_validate_require_cipher();
2886 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
2887 "tls_require_ciphers invalid: %s", errmsg);
2894 rc = waitpid(pid, &status, 0);
2895 } while (rc < 0 && errno == EINTR);
2898 debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n",
2901 signal(SIGCHLD, oldsignal);
2905 #endif /* SUPPORT_TLS */
2910 /*************************************************
2911 * Read main configuration options *
2912 *************************************************/
2914 /* This function is the first to be called for configuration reading. It
2915 opens the configuration file and reads general configuration settings until
2916 it reaches the end of the configuration section. The file is then left open so
2917 that the remaining configuration data can subsequently be read if needed for
2920 The configuration file must be owned either by root or exim, and be writeable
2921 only by root or uid/gid exim. The values for Exim's uid and gid can be changed
2922 in the config file, so the test is done on the compiled in values. A slight
2923 anomaly, to be carefully documented.
2925 The name of the configuration file is taken from a list that is included in the
2926 binary of Exim. It can be altered from the command line, but if that is done,
2927 root privilege is immediately withdrawn unless the caller is root or exim.
2928 The first file on the list that exists is used.
2930 For use on multiple systems that share file systems, first look for a
2931 configuration file whose name has the current node name on the end. If that is
2932 not found, try the generic name. For really contorted configurations, that run
2933 multiple Exims with different uid settings, first try adding the effective uid
2934 before the node name. These complications are going to waste resources on most
2935 systems. Therefore they are available only when requested by compile-time
2942 struct stat statbuf;
2943 uschar *s, *filename;
2944 uschar *list = config_main_filelist;
2946 /* Loop through the possible file names */
2948 while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
2951 /* Cut out all the fancy processing unless specifically wanted */
2953 #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
2954 uschar *suffix = filename + Ustrlen(filename);
2956 /* Try for the node-specific file if a node name exists */
2958 #ifdef CONFIGURE_FILE_USE_NODE
2960 if (uname(&uts) >= 0)
2962 #ifdef CONFIGURE_FILE_USE_EUID
2963 sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename);
2964 config_file = Ufopen(filename, "rb");
2965 if (config_file == NULL)
2966 #endif /* CONFIGURE_FILE_USE_EUID */
2968 sprintf(CS suffix, ".%.256s", uts.nodename);
2969 config_file = Ufopen(filename, "rb");
2972 #endif /* CONFIGURE_FILE_USE_NODE */
2974 /* Otherwise, try the generic name, possibly with the euid added */
2976 #ifdef CONFIGURE_FILE_USE_EUID
2977 if (config_file == NULL)
2979 sprintf(CS suffix, ".%ld", (long int)original_euid);
2980 config_file = Ufopen(filename, "rb");
2982 #endif /* CONFIGURE_FILE_USE_EUID */
2984 /* Finally, try the unadorned name */
2986 if (config_file == NULL)
2989 config_file = Ufopen(filename, "rb");
2991 #else /* if neither defined */
2993 /* This is the common case when the fancy processing is not included. */
2995 config_file = Ufopen(filename, "rb");
2998 /* If the file does not exist, continue to try any others. For any other
2999 error, break out (and die). */
3001 if (config_file != NULL || errno != ENOENT) break;
3004 /* On success, save the name for verification; config_filename is used when
3005 logging configuration errors (it changes for .included files) whereas
3006 config_main_filename is the name shown by -bP. Failure to open a configuration
3007 file is a serious disaster. */
3009 if (config_file != NULL)
3011 config_filename = config_main_filename = string_copy(filename);
3015 if (filename == NULL)
3016 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): "
3017 "%s", config_main_filelist);
3019 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno,
3020 "configuration file %s", filename));
3023 /* Check the status of the file we have opened, if we have retained root
3024 privileges and the file isn't /dev/null (which *should* be 0666). */
3026 if (trusted_config && Ustrcmp(filename, US"/dev/null"))
3028 if (fstat(fileno(config_file), &statbuf) != 0)
3029 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s",
3032 if ((statbuf.st_uid != root_uid /* owner not root */
3033 #ifdef CONFIGURE_OWNER
3034 && statbuf.st_uid != config_uid /* owner not the special one */
3037 (statbuf.st_gid != root_gid /* group not root & */
3038 #ifdef CONFIGURE_GROUP
3039 && statbuf.st_gid != config_gid /* group not the special one */
3041 && (statbuf.st_mode & 020) != 0) || /* group writeable */
3043 ((statbuf.st_mode & 2) != 0)) /* world writeable */
3045 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the "
3046 "wrong owner, group, or mode", big_buffer);
3049 /* Process the main configuration settings. They all begin with a lower case
3050 letter. If we see something starting with an upper case letter, it is taken as
3051 a macro definition. */
3053 while ((s = get_config_line()) != NULL)
3055 if (isupper(s[0])) read_macro_assignment(s);
3057 else if (Ustrncmp(s, "domainlist", 10) == 0)
3058 read_named_list(&domainlist_anchor, &domainlist_count,
3059 MAX_NAMED_LIST, s+10, US"domain list");
3061 else if (Ustrncmp(s, "hostlist", 8) == 0)
3062 read_named_list(&hostlist_anchor, &hostlist_count,
3063 MAX_NAMED_LIST, s+8, US"host list");
3065 else if (Ustrncmp(s, US"addresslist", 11) == 0)
3066 read_named_list(&addresslist_anchor, &addresslist_count,
3067 MAX_NAMED_LIST, s+11, US"address list");
3069 else if (Ustrncmp(s, US"localpartlist", 13) == 0)
3070 read_named_list(&localpartlist_anchor, &localpartlist_count,
3071 MAX_NAMED_LIST, s+13, US"local part list");
3074 (void) readconf_handle_option(s, optionlist_config, optionlist_config_size,
3075 NULL, US"main option \"%s\" unknown");
3079 /* If local_sender_retain is set, local_from_check must be unset. */
3081 if (local_sender_retain && local_from_check)
3082 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and "
3083 "local_sender_retain are set; this combination is not allowed");
3085 /* If the timezone string is empty, set it to NULL, implying no TZ variable
3088 if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL;
3090 /* The max retry interval must not be greater than 24 hours. */
3092 if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60;
3094 /* remote_max_parallel must be > 0 */
3096 if (remote_max_parallel <= 0) remote_max_parallel = 1;
3098 /* Save the configured setting of freeze_tell, so we can re-instate it at the
3099 start of a new SMTP message. */
3101 freeze_tell_config = freeze_tell;
3103 /* The primary host name may be required for expansion of spool_directory
3104 and log_file_path, so make sure it is set asap. It is obtained from uname(),
3105 but if that yields an unqualified value, make a FQDN by using gethostbyname to
3106 canonize it. Some people like upper case letters in their host names, so we
3107 don't force the case. */
3109 if (primary_hostname == NULL)
3113 if (uname(&uts) < 0)
3114 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name");
3115 hostname = US uts.nodename;
3117 if (Ustrchr(hostname, '.') == NULL)
3120 struct hostent *hostdata;
3123 if (!disable_ipv6 && (dns_ipv4_lookup == NULL ||
3124 match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN,
3134 #if HAVE_GETIPNODEBYNAME
3136 hostdata = getipnodebyname(CS hostname, af, 0, &error_num);
3138 hostdata = gethostbyname2(CS hostname, af);
3141 hostdata = gethostbyname(CS hostname);
3144 if (hostdata != NULL)
3146 hostname = US hostdata->h_name;
3150 if (af == AF_INET) break;
3155 primary_hostname = string_copy(hostname);
3158 /* Set up default value for smtp_active_hostname */
3160 smtp_active_hostname = primary_hostname;
3162 /* If spool_directory wasn't set in the build-time configuration, it must have
3163 got set above. Of course, writing to the log may not work if log_file_path is
3164 not set, but it will at least get to syslog or somewhere, with any luck. */
3166 if (*spool_directory == 0)
3167 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot "
3170 /* Expand the spool directory name; it may, for example, contain the primary
3171 host name. Same comment about failure. */
3173 s = expand_string(spool_directory);
3175 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory "
3176 "\"%s\": %s", spool_directory, expand_string_message);
3177 spool_directory = s;
3179 /* Expand log_file_path, which must contain "%s" in any component that isn't
3180 the null string or "syslog". It is also allowed to contain one instance of %D
3181 or %M. However, it must NOT contain % followed by anything else. */
3183 if (*log_file_path != 0)
3186 int sep = ':'; /* Fixed for log file path */
3187 s = expand_string(log_file_path);
3189 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path "
3190 "\"%s\": %s", log_file_path, expand_string_message);
3193 while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL)
3196 if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue;
3197 t = Ustrstr(sss, "%s");
3199 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not "
3200 "contain \"%%s\"", sss);
3202 t = Ustrchr(sss, '%');
3205 if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL)
3206 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains "
3207 "unexpected \"%%\" character", s);
3214 /* Interpret syslog_facility into an integer argument for 'ident' param to
3215 openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the
3218 if (syslog_facility_str != NULL)
3221 uschar *s = syslog_facility_str;
3223 if ((Ustrlen(syslog_facility_str) >= 4) &&
3224 (strncmpic(syslog_facility_str, US"log_", 4) == 0))
3227 for (i = 0; i < syslog_list_size; i++)
3229 if (strcmpic(s, syslog_list[i].name) == 0)
3231 syslog_facility = syslog_list[i].value;
3236 if (i >= syslog_list_size)
3238 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3239 "failed to interpret syslog_facility \"%s\"", syslog_facility_str);
3243 /* Expand pid_file_path */
3245 if (*pid_file_path != 0)
3247 s = expand_string(pid_file_path);
3249 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path "
3250 "\"%s\": %s", pid_file_path, expand_string_message);
3254 /* Set default value of process_log_path */
3256 if (process_log_path == NULL || *process_log_path =='\0')
3257 process_log_path = string_sprintf("%s/exim-process.info", spool_directory);
3259 /* Compile the regex for matching a UUCP-style "From_" line in an incoming
3262 regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE);
3264 /* Unpick the SMTP rate limiting options, if set */
3266 if (smtp_ratelimit_mail != NULL)
3268 unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold,
3269 &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit);
3272 if (smtp_ratelimit_rcpt != NULL)
3274 unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold,
3275 &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit);
3278 /* The qualify domains default to the primary host name */
3280 if (qualify_domain_sender == NULL)
3281 qualify_domain_sender = primary_hostname;
3282 if (qualify_domain_recipient == NULL)
3283 qualify_domain_recipient = qualify_domain_sender;
3285 /* Setting system_filter_user in the configuration sets the gid as well if a
3286 name is given, but a numerical value does not. */
3288 if (system_filter_uid_set && !system_filter_gid_set)
3290 struct passwd *pw = getpwuid(system_filter_uid);
3292 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld",
3293 (long int)system_filter_uid);
3294 system_filter_gid = pw->pw_gid;
3295 system_filter_gid_set = TRUE;
3298 /* If the errors_reply_to field is set, check that it is syntactically valid
3299 and ensure it contains a domain. */
3301 if (errors_reply_to != NULL)
3304 int start, end, domain;
3305 uschar *recipient = parse_extract_address(errors_reply_to, &errmess,
3306 &start, &end, &domain, FALSE);
3308 if (recipient == NULL)
3309 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3310 "error in errors_reply_to (%s): %s", errors_reply_to, errmess);
3313 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3314 "errors_reply_to (%s) does not contain a domain", errors_reply_to);
3317 /* If smtp_accept_queue or smtp_accept_max_per_host is set, then
3318 smtp_accept_max must also be set. */
3320 if (smtp_accept_max == 0 &&
3321 (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL))
3322 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3323 "smtp_accept_max must be set if smtp_accept_queue or "
3324 "smtp_accept_max_per_host is set");
3326 /* Set up the host number if anything is specified. It is an expanded string
3327 so that it can be computed from the host name, for example. We do this last
3328 so as to ensure that everything else is set up before the expansion. */
3330 if (host_number_string != NULL)
3334 uschar *s = expand_string(host_number_string);
3336 log_write(0, LOG_MAIN|LOG_PANIC_DIE,
3337 "failed to expand localhost_number \"%s\": %s",
3338 host_number_string, expand_string_message);
3339 n = Ustrtol(s, &end, 0);
3340 while (isspace(*end)) end++;
3342 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3343 "localhost_number value is not a number: %s", s);
3344 if (n > LOCALHOST_MAX)
3345 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3346 "localhost_number is greater than the maximum allowed value (%d)",
3352 /* If tls_verify_hosts is set, tls_verify_certificates must also be set */
3354 if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) &&
3355 tls_verify_certificates == NULL)
3356 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3357 "tls_%sverify_hosts is set, but tls_verify_certificates is not set",
3358 (tls_verify_hosts != NULL)? "" : "try_");
3360 /* This also checks that the library linkage is working and we can call
3361 routines in it, so call even if tls_require_ciphers is unset */
3362 if (!tls_dropprivs_validate_require_cipher())
3365 /* Magic number: at time of writing, 1024 has been the long-standing value
3366 used by so many clients, and what Exim used to use always, that it makes
3367 sense to just min-clamp this max-clamp at that. */
3368 if (tls_dh_max_bits < 1024)
3369 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3370 "tls_dh_max_bits is too small, must be at least 1024 for interop");
3372 /* If openssl_options is set, validate it */
3373 if (openssl_options != NULL)
3376 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3377 "openssl_options is set but we're using GnuTLS");
3380 if (!(tls_openssl_options_parse(openssl_options, &dummy)))
3381 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3382 "openssl_options parse error: %s", openssl_options);
3386 if (gnutls_require_kx || gnutls_require_mac || gnutls_require_proto)
3387 log_write(0, LOG_MAIN, "WARNING: main options"
3388 " gnutls_require_kx, gnutls_require_mac and gnutls_require_protocols"
3390 #endif /*SUPPORT_TLS*/
3395 /*************************************************
3396 * Initialize one driver *
3397 *************************************************/
3399 /* This is called once the driver's generic options, if any, have been read.
3400 We can now find the driver, set up defaults for the private options, and
3401 unset any "set" bits in the private options table (which might have been
3402 set by another incarnation of the same driver).
3405 d pointer to driver instance block, with generic
3407 drivers_available vector of available drivers
3408 size_of_info size of each block in drivers_available
3409 class class of driver, for error message
3411 Returns: pointer to the driver info block
3414 static driver_info *
3415 init_driver(driver_instance *d, driver_info *drivers_available,
3416 int size_of_info, uschar *class)
3420 for (dd = drivers_available; dd->driver_name[0] != 0;
3421 dd = (driver_info *)(((uschar *)dd) + size_of_info))
3423 if (Ustrcmp(d->driver_name, dd->driver_name) == 0)
3426 int len = dd->options_len;
3428 d->options_block = store_get(len);
3429 memcpy(d->options_block, dd->options_block, len);
3430 for (i = 0; i < *(dd->options_count); i++)
3431 dd->options[i].type &= ~opt_set;
3436 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3437 "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name);
3439 return NULL; /* never obeyed */
3445 /*************************************************
3446 * Initialize driver list *
3447 *************************************************/
3449 /* This function is called for routers, transports, and authentication
3450 mechanisms. It reads the data from the current point in the configuration file
3451 up to the end of the section, and sets up a chain of instance blocks according
3452 to the file's contents. The file will already have been opened by a call to
3453 readconf_main, and must be left open for subsequent reading of further data.
3455 Any errors cause a panic crash. Note that the blocks with names driver_info and
3456 driver_instance must map the first portions of all the _info and _instance
3457 blocks for this shared code to work.
3460 class "router", "transport", or "authenticator"
3461 anchor &routers, &transports, &auths
3462 drivers_available available drivers
3463 size_of_info size of each info block
3464 instance_default points to default data for an instance
3465 instance_size size of instance block
3466 driver_optionlist generic option list
3467 driver_optionlist_count count of generic option list
3473 readconf_driver_init(
3475 driver_instance **anchor,
3476 driver_info *drivers_available,
3478 void *instance_default,
3480 optionlist *driver_optionlist,
3481 int driver_optionlist_count)
3483 driver_instance **p = anchor;
3484 driver_instance *d = NULL;
3487 while ((buffer = get_config_line()) != NULL)
3492 /* Read the first name on the line and test for the start of a new driver. A
3493 macro definition indicates the end of the previous driver. If this isn't the
3494 start of a new driver, the line will be re-read. */
3496 s = readconf_readname(name, sizeof(name), buffer);
3498 /* Handle macro definition, first finishing off the initialization of the
3499 previous driver, if any. */
3501 if (isupper(*name) && *s == '=')
3505 if (d->driver_name == NULL)
3506 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3507 "no driver defined for %s \"%s\"", class, d->name);
3511 read_macro_assignment(buffer);
3515 /* If the line starts with a name terminated by a colon, we are at the
3516 start of the definition of a new driver. The rest of the line must be
3523 /* Finish off initializing the previous driver. */
3527 if (d->driver_name == NULL)
3528 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3529 "no driver defined for %s \"%s\"", class, d->name);
3533 /* Check that we haven't already got a driver of this name */
3535 for (d = *anchor; d != NULL; d = d->next)
3536 if (Ustrcmp(name, d->name) == 0)
3537 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3538 "there are two %ss called \"%s\"", class, name);
3540 /* Set up a new driver instance data block on the chain, with
3541 its default values installed. */
3543 d = store_get(instance_size);
3544 memcpy(d, instance_default, instance_size);
3547 d->name = string_copy(name);
3549 /* Clear out the "set" bits in the generic options */
3551 for (i = 0; i < driver_optionlist_count; i++)
3552 driver_optionlist[i].type &= ~opt_set;
3554 /* Check nothing more on this line, then do the next loop iteration. */
3556 while (isspace(*s)) s++;
3557 if (*s != 0) extra_chars_error(s, US"driver name ", name, US"");
3561 /* Not the start of a new driver. Give an error if we have not set up a
3562 current driver yet. */
3564 if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3565 "%s name missing", class);
3567 /* First look to see if this is a generic option; if it is "driver",
3568 initialize the driver. If is it not a generic option, we can look for a
3569 private option provided that the driver has been previously set up. */
3571 if (readconf_handle_option(buffer, driver_optionlist,
3572 driver_optionlist_count, d, NULL))
3574 if (d->info == NULL && d->driver_name != NULL)
3575 init_driver(d, drivers_available, size_of_info, class);
3578 /* Handle private options - pass the generic block because some may
3579 live therein. A flag with each option indicates if it is in the public
3582 else if (d->info != NULL)
3584 readconf_handle_option(buffer, d->info->options,
3585 *(d->info->options_count), d, US"option \"%s\" unknown");
3588 /* The option is not generic and the driver name has not yet been given. */
3590 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown "
3591 "(\"driver\" must be specified before any private options)", name);
3594 /* Run the initialization function for the final driver. */
3598 if (d->driver_name == NULL)
3599 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3600 "no driver defined for %s \"%s\"", class, d->name);
3607 /*************************************************
3608 * Check driver dependency *
3609 *************************************************/
3611 /* This function is passed a driver instance and a string. It checks whether
3612 any of the string options for the driver contains the given string as an
3616 d points to a driver instance block
3617 s the string to search for
3619 Returns: TRUE if a dependency is found
3623 readconf_depends(driver_instance *d, uschar *s)
3625 int count = *(d->info->options_count);
3629 for (ol = d->info->options; ol < d->info->options + count; ol++)
3631 void *options_block;
3633 int type = ol->type & opt_mask;
3634 if (type != opt_stringptr) continue;
3635 options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d;
3636 value = *(uschar **)((uschar *)options_block + (long int)(ol->value));
3637 if (value != NULL && (ss = Ustrstr(value, s)) != NULL)
3639 if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') ||
3640 isalnum(ss[Ustrlen(s)])) continue;
3641 DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n",
3642 d->name, ol->name, s);
3647 DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s);
3654 /*************************************************
3655 * Decode an error type for retries *
3656 *************************************************/
3658 /* This function is global because it is also called from the main
3659 program when testing retry information. It decodes strings such as "quota_7d"
3660 into numerical error codes.
3663 pp points to start of text
3664 p points past end of text
3665 basic_errno points to an int to receive the main error number
3666 more_errno points to an int to receive the secondary error data
3668 Returns: NULL if decoded correctly; else points to error text
3672 readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno)
3676 while (q < p && *q != '_') q++;
3679 if (len == 5 && strncmpic(pp, US"quota", len) == 0)
3681 *basic_errno = ERRNO_EXIMQUOTA;
3682 if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0)
3683 return US"bad time value";
3686 else if (len == 7 && strncmpic(pp, US"refused", len) == 0)
3688 *basic_errno = ECONNREFUSED;
3691 if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M';
3692 else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A';
3693 else return US"A or MX expected after \"refused\"";
3697 else if (len == 7 && strncmpic(pp, US"timeout", len) == 0)
3699 *basic_errno = ETIMEDOUT;
3703 int xlen = p - q - 1;
3706 static uschar *extras[] =
3707 { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" };
3708 static int values[] =
3709 { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' };
3711 for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++)
3713 if (strncmpic(x, extras[i], xlen) == 0)
3715 *more_errno = values[i];
3720 if (i >= sizeof(extras)/sizeof(uschar *))
3722 if (strncmpic(x, US"DNS", xlen) == 0)
3724 log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer "
3725 "available in retry rules (it has never worked) - treated as "
3728 else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\"";
3733 else if (strncmpic(pp, US"mail_4", 6) == 0 ||
3734 strncmpic(pp, US"rcpt_4", 6) == 0 ||
3735 strncmpic(pp, US"data_4", 6) == 0)
3738 int x = 255; /* means "any 4xx code" */
3739 if (p != pp + 8) bad = TRUE; else
3741 int a = pp[6], b = pp[7];
3745 if (isdigit(b)) x += b - '0';
3746 else if (b == 'x') x += 100;
3749 else if (a != 'x' || b != 'x') bad = TRUE;
3753 return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where "
3754 "x is literal and d is any digit", pp);
3756 *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX :
3757 (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX;
3758 *more_errno = x << 8;
3761 else if (len == 4 && strncmpic(pp, US"auth", len) == 0 &&
3762 strncmpic(q+1, US"failed", p-q-1) == 0)
3763 *basic_errno = ERRNO_AUTHFAIL;
3765 else if (strncmpic(pp, US"lost_connection", p - pp) == 0)
3766 *basic_errno = ERRNO_SMTPCLOSED;
3768 else if (strncmpic(pp, US"tls_required", p - pp) == 0)
3769 *basic_errno = ERRNO_TLSREQUIRED;
3771 else if (len != 1 || Ustrncmp(pp, "*", 1) != 0)
3772 return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp);
3780 /*************************************************
3781 * Read retry information *
3782 *************************************************/
3784 /* Each line of retry information contains:
3786 . A domain name pattern or an address pattern;
3788 . An error name, possibly with additional data, or *;
3790 . An optional sequence of retry items, each consisting of an identifying
3791 letter, a cutoff time, and optional parameters.
3793 All this is decoded and placed into a control block. */
3796 /* Subroutine to read an argument, preceded by a comma and terminated
3797 by comma, semicolon, whitespace, or newline. The types are: 0 = time value,
3798 1 = fixed point number (returned *1000).
3801 paddr pointer to pointer to current character; updated
3802 type 0 => read a time; 1 => read a fixed point number
3804 Returns: time in seconds or fixed point number * 1000
3808 retry_arg(uschar **paddr, int type)
3813 if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected");
3815 while (isspace(*p)) p++;
3817 while (isalnum(*p) || (type == 1 && *p == '.')) p++;
3819 if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';')
3820 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected");
3826 return readconf_readtime(pp, *p, FALSE);
3828 return readconf_readfixed(pp, *p);
3830 return 0; /* Keep picky compilers happy */
3833 /* The function proper */
3836 readconf_retries(void)
3838 retry_config **chain = &retries;
3842 while ((p = get_config_line()) != NULL)
3844 retry_rule **rchain;
3847 next = store_get(sizeof(retry_config));
3850 chain = &(next->next);
3851 next->basic_errno = next->more_errno = 0;
3852 next->senders = NULL;
3854 rchain = &(next->rules);
3856 next->pattern = string_dequote(&p);
3857 while (isspace(*p)) p++;
3859 while (mac_isgraph(*p)) p++;
3860 if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3861 "missing error type in retry rule");
3863 /* Test error names for things we understand. */
3865 if ((error = readconf_retry_error(pp, p, &(next->basic_errno),
3866 &(next->more_errno))) != NULL)
3867 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error);
3869 /* There may be an optional address list of senders to be used as another
3870 constraint on the rule. This was added later, so the syntax is a bit of a
3871 fudge. Anything that is not a retry rule starting "F," or "G," is treated as
3874 while (isspace(*p)) p++;
3875 if (Ustrncmp(p, "senders", 7) == 0)
3878 while (isspace(*p)) p++;
3879 if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3880 "\"=\" expected after \"senders\" in retry rule");
3881 while (isspace(*p)) p++;
3882 next->senders = string_dequote(&p);
3885 /* Now the retry rules. Keep the maximum timeout encountered. */
3887 while (isspace(*p)) p++;
3891 retry_rule *rule = store_get(sizeof(retry_rule));
3893 rchain = &(rule->next);
3895 rule->rule = toupper(*p++);
3896 rule->timeout = retry_arg(&p, 0);
3897 if (rule->timeout > retry_maximum_timeout)
3898 retry_maximum_timeout = rule->timeout;
3902 case 'F': /* Fixed interval */
3903 rule->p1 = retry_arg(&p, 0);
3906 case 'G': /* Geometrically increasing intervals */
3907 case 'H': /* Ditto, but with randomness */
3908 rule->p1 = retry_arg(&p, 0);
3909 rule->p2 = retry_arg(&p, 1);
3913 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter");
3917 if (rule->timeout <= 0 || rule->p1 <= 0 ||
3918 (rule->rule != 'F' && rule->p2 < 1000))
3919 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3920 "bad parameters for retry rule");
3922 while (isspace(*p)) p++;
3926 while (isspace(*p)) p++;
3929 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected");
3936 /*************************************************
3937 * Initialize authenticators *
3938 *************************************************/
3940 /* Read the authenticators section of the configuration file.
3949 auth_instance *au, *bu;
3950 readconf_driver_init(US"authenticator",
3951 (driver_instance **)(&auths), /* chain anchor */
3952 (driver_info *)auths_available, /* available drivers */
3953 sizeof(auth_info), /* size of info block */
3954 &auth_defaults, /* default values for generic options */
3955 sizeof(auth_instance), /* size of instance block */
3956 optionlist_auths, /* generic options */
3957 optionlist_auths_size);
3959 for (au = auths; au != NULL; au = au->next)
3961 if (au->public_name == NULL)
3962 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for "
3963 "the %s authenticator", au->name);
3964 for (bu = au->next; bu != NULL; bu = bu->next)
3966 if (strcmpic(au->public_name, bu->public_name) == 0)
3968 if ((au->client && bu->client) || (au->server && bu->server))
3969 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators "
3970 "(%s and %s) have the same public name (%s)",
3971 (au->client)? US"client" : US"server", au->name, bu->name,
3981 /*************************************************
3982 * Read ACL information *
3983 *************************************************/
3985 /* If this run of Exim is not doing something that involves receiving a
3986 message, we can just skip over the ACL information. No need to parse it.
3988 First, we have a function for acl_read() to call back to get the next line. We
3989 need to remember the line we passed, because at the end it will contain the
3990 name of the next ACL. */
3992 static uschar *acl_line;
3997 acl_line = get_config_line();
4002 /* Now the main function:
4013 /* Read each ACL and add it into the tree. Macro (re)definitions are allowed
4016 acl_line = get_config_line();
4018 while(acl_line != NULL)
4024 p = readconf_readname(name, sizeof(name), acl_line);
4025 if (isupper(*name) && *p == '=')
4027 read_macro_assignment(acl_line);
4028 acl_line = get_config_line();
4032 if (*p != ':' || name[0] == 0)
4033 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name");
4035 node = store_get(sizeof(tree_node) + Ustrlen(name));
4036 Ustrcpy(node->name, name);
4037 if (!tree_insertnode(&acl_anchor, node))
4038 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4039 "there are two ACLs called \"%s\"", name);
4041 node->data.ptr = acl_read(acl_callback, &error);
4043 if (node->data.ptr == NULL && error != NULL)
4044 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error);
4050 /*************************************************
4051 * Read configuration for local_scan() *
4052 *************************************************/
4054 /* This function is called after "begin local_scan" is encountered in the
4055 configuration file. If the local_scan() function allows for configuration
4056 options, we can process them. Otherwise, we expire in a panic.
4063 local_scan_init(void)
4065 #ifndef LOCAL_SCAN_HAS_OPTIONS
4066 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: "
4067 "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)");
4071 while ((p = get_config_line()) != NULL)
4073 (void) readconf_handle_option(p, local_scan_options, local_scan_options_count,
4074 NULL, US"local_scan option \"%s\" unknown");
4081 /*************************************************
4082 * Read rest of configuration (after main) *
4083 *************************************************/
4085 /* This function reads the rest of the runtime configuration, after the main
4086 configuration. It is called only when actually needed. Each subsequent section
4087 of the configuration starts with a line of the form
4091 where the name is "routers", "transports", etc. A section is terminated by
4092 hitting the next "begin" line, and the next name is left in next_section.
4093 Because it may confuse people as to whether the names are singular or plural,
4094 we add "s" if it's missing. There is always enough room in next_section for
4095 this. This function is basically just a switch.
4101 static uschar *section_list[] = {
4115 while(next_section[0] != 0)
4119 int last = sizeof(section_list) / sizeof(uschar *);
4121 int n = Ustrlen(next_section);
4123 if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s");
4127 int c = strcmpic(next_section, section_list[mid]);
4129 if (c > 0) first = mid + 1; else last = mid;
4131 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4132 "\"%.*s\" is not a known configuration section name", n, next_section);
4133 mid = (last + first)/2;
4137 if (((had ^= bit) & bit) == 0)
4138 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4139 "\"%.*s\" section is repeated in the configuration file", n,
4144 case 0: readconf_acl(); break;
4145 case 1: auths_init(); break;
4146 case 2: local_scan_init(); break;
4147 case 3: readconf_retries(); break;
4148 case 4: readconf_rewrites(); break;
4149 case 5: route_init(); break;
4150 case 6: transport_init(); break;
4154 (void)fclose(config_file);
4159 /* End of readconf.c */