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 { "add_environment", opt_stringptr, &add_environment },
166 { "admin_groups", opt_gidlist, &admin_groups },
167 { "allow_domain_literals", opt_bool, &allow_domain_literals },
168 { "allow_mx_to_ip", opt_bool, &allow_mx_to_ip },
169 { "allow_utf8_domains", opt_bool, &allow_utf8_domains },
170 { "auth_advertise_hosts", opt_stringptr, &auth_advertise_hosts },
171 { "auto_thaw", opt_time, &auto_thaw },
172 #ifdef WITH_CONTENT_SCAN
173 { "av_scanner", opt_stringptr, &av_scanner },
175 { "bi_command", opt_stringptr, &bi_command },
176 #ifdef EXPERIMENTAL_BRIGHTMAIL
177 { "bmi_config_file", opt_stringptr, &bmi_config_file },
179 { "bounce_message_file", opt_stringptr, &bounce_message_file },
180 { "bounce_message_text", opt_stringptr, &bounce_message_text },
181 { "bounce_return_body", opt_bool, &bounce_return_body },
182 { "bounce_return_message", opt_bool, &bounce_return_message },
183 { "bounce_return_size_limit", opt_mkint, &bounce_return_size_limit },
184 { "bounce_sender_authentication",opt_stringptr,&bounce_sender_authentication },
185 { "callout_domain_negative_expire", opt_time, &callout_cache_domain_negative_expire },
186 { "callout_domain_positive_expire", opt_time, &callout_cache_domain_positive_expire },
187 { "callout_negative_expire", opt_time, &callout_cache_negative_expire },
188 { "callout_positive_expire", opt_time, &callout_cache_positive_expire },
189 { "callout_random_local_part",opt_stringptr, &callout_random_local_part },
190 { "check_log_inodes", opt_int, &check_log_inodes },
191 { "check_log_space", opt_Kint, &check_log_space },
192 { "check_rfc2047_length", opt_bool, &check_rfc2047_length },
193 { "check_spool_inodes", opt_int, &check_spool_inodes },
194 { "check_spool_space", opt_Kint, &check_spool_space },
195 { "daemon_smtp_port", opt_stringptr|opt_hidden, &daemon_smtp_port },
196 { "daemon_smtp_ports", opt_stringptr, &daemon_smtp_port },
197 { "daemon_startup_retries", opt_int, &daemon_startup_retries },
198 { "daemon_startup_sleep", opt_time, &daemon_startup_sleep },
199 #ifdef EXPERIMENTAL_DCC
200 { "dcc_direct_add_header", opt_bool, &dcc_direct_add_header },
201 { "dccifd_address", opt_stringptr, &dccifd_address },
202 { "dccifd_options", opt_stringptr, &dccifd_options },
204 { "delay_warning", opt_timelist, &delay_warning },
205 { "delay_warning_condition", opt_stringptr, &delay_warning_condition },
206 { "deliver_drop_privilege", opt_bool, &deliver_drop_privilege },
207 { "deliver_queue_load_max", opt_fixed, &deliver_queue_load_max },
208 { "delivery_date_remove", opt_bool, &delivery_date_remove },
209 #ifdef ENABLE_DISABLE_FSYNC
210 { "disable_fsync", opt_bool, &disable_fsync },
212 { "disable_ipv6", opt_bool, &disable_ipv6 },
214 { "dkim_verify_signers", opt_stringptr, &dkim_verify_signers },
216 #ifdef EXPERIMENTAL_DMARC
217 { "dmarc_forensic_sender", opt_stringptr, &dmarc_forensic_sender },
218 { "dmarc_history_file", opt_stringptr, &dmarc_history_file },
219 { "dmarc_tld_file", opt_stringptr, &dmarc_tld_file },
221 { "dns_again_means_nonexist", opt_stringptr, &dns_again_means_nonexist },
222 { "dns_check_names_pattern", opt_stringptr, &check_dns_names_pattern },
223 { "dns_csa_search_limit", opt_int, &dns_csa_search_limit },
224 { "dns_csa_use_reverse", opt_bool, &dns_csa_use_reverse },
225 { "dns_dnssec_ok", opt_int, &dns_dnssec_ok },
226 { "dns_ipv4_lookup", opt_stringptr, &dns_ipv4_lookup },
227 { "dns_retrans", opt_time, &dns_retrans },
228 { "dns_retry", opt_int, &dns_retry },
229 { "dns_use_edns0", opt_int, &dns_use_edns0 },
230 /* This option is now a no-op, retained for compability */
231 { "drop_cr", opt_bool, &drop_cr },
232 /*********************************************************/
233 #ifdef EXPERIMENTAL_DSN
234 { "dsn_advertise_hosts", opt_stringptr, &dsn_advertise_hosts },
236 { "dsn_from", opt_stringptr, &dsn_from },
237 { "envelope_to_remove", opt_bool, &envelope_to_remove },
238 { "errors_copy", opt_stringptr, &errors_copy },
239 { "errors_reply_to", opt_stringptr, &errors_reply_to },
240 #ifdef EXPERIMENTAL_EVENT
241 { "event_action", opt_stringptr, &event_action },
243 { "exim_group", opt_gid, &exim_gid },
244 { "exim_path", opt_stringptr, &exim_path },
245 { "exim_user", opt_uid, &exim_uid },
246 { "extra_local_interfaces", opt_stringptr, &extra_local_interfaces },
247 { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments },
248 { "finduser_retries", opt_int, &finduser_retries },
249 { "freeze_tell", opt_stringptr, &freeze_tell },
250 { "gecos_name", opt_stringptr, &gecos_name },
251 { "gecos_pattern", opt_stringptr, &gecos_pattern },
253 { "gnutls_allow_auto_pkcs11", opt_bool, &gnutls_allow_auto_pkcs11 },
254 { "gnutls_compat_mode", opt_bool, &gnutls_compat_mode },
255 /* These three gnutls_require_* options stopped working in Exim 4.80 */
256 /* From 4.83 we log a warning; a future relase will remove them */
257 { "gnutls_require_kx", opt_stringptr, &gnutls_require_kx },
258 { "gnutls_require_mac", opt_stringptr, &gnutls_require_mac },
259 { "gnutls_require_protocols", opt_stringptr, &gnutls_require_proto },
261 { "header_line_maxsize", opt_int, &header_line_maxsize },
262 { "header_maxsize", opt_int, &header_maxsize },
263 { "headers_charset", opt_stringptr, &headers_charset },
264 { "helo_accept_junk_hosts", opt_stringptr, &helo_accept_junk_hosts },
265 { "helo_allow_chars", opt_stringptr, &helo_allow_chars },
266 { "helo_lookup_domains", opt_stringptr, &helo_lookup_domains },
267 { "helo_try_verify_hosts", opt_stringptr, &helo_try_verify_hosts },
268 { "helo_verify_hosts", opt_stringptr, &helo_verify_hosts },
269 { "hold_domains", opt_stringptr, &hold_domains },
270 { "host_lookup", opt_stringptr, &host_lookup },
271 { "host_lookup_order", opt_stringptr, &host_lookup_order },
272 { "host_reject_connection", opt_stringptr, &host_reject_connection },
273 { "hosts_connection_nolog", opt_stringptr, &hosts_connection_nolog },
274 { "hosts_treat_as_local", opt_stringptr, &hosts_treat_as_local },
276 { "ibase_servers", opt_stringptr, &ibase_servers },
278 { "ignore_bounce_errors_after", opt_time, &ignore_bounce_errors_after },
279 { "ignore_fromline_hosts", opt_stringptr, &ignore_fromline_hosts },
280 { "ignore_fromline_local", opt_bool, &ignore_fromline_local },
281 { "keep_environment", opt_stringptr, &keep_environment },
282 { "keep_malformed", opt_time, &keep_malformed },
284 { "ldap_ca_cert_dir", opt_stringptr, &eldap_ca_cert_dir },
285 { "ldap_ca_cert_file", opt_stringptr, &eldap_ca_cert_file },
286 { "ldap_cert_file", opt_stringptr, &eldap_cert_file },
287 { "ldap_cert_key", opt_stringptr, &eldap_cert_key },
288 { "ldap_cipher_suite", opt_stringptr, &eldap_cipher_suite },
289 { "ldap_default_servers", opt_stringptr, &eldap_default_servers },
290 { "ldap_require_cert", opt_stringptr, &eldap_require_cert },
291 { "ldap_start_tls", opt_bool, &eldap_start_tls },
292 { "ldap_version", opt_int, &eldap_version },
294 { "local_from_check", opt_bool, &local_from_check },
295 { "local_from_prefix", opt_stringptr, &local_from_prefix },
296 { "local_from_suffix", opt_stringptr, &local_from_suffix },
297 { "local_interfaces", opt_stringptr, &local_interfaces },
298 { "local_scan_timeout", opt_time, &local_scan_timeout },
299 { "local_sender_retain", opt_bool, &local_sender_retain },
300 { "localhost_number", opt_stringptr, &host_number_string },
301 { "log_file_path", opt_stringptr, &log_file_path },
302 { "log_selector", opt_stringptr, &log_selector_string },
303 { "log_timezone", opt_bool, &log_timezone },
304 { "lookup_open_max", opt_int, &lookup_open_max },
305 { "max_username_length", opt_int, &max_username_length },
306 { "message_body_newlines", opt_bool, &message_body_newlines },
307 { "message_body_visible", opt_mkint, &message_body_visible },
308 { "message_id_header_domain", opt_stringptr, &message_id_domain },
309 { "message_id_header_text", opt_stringptr, &message_id_text },
310 { "message_logs", opt_bool, &message_logs },
311 { "message_size_limit", opt_stringptr, &message_size_limit },
312 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
313 { "move_frozen_messages", opt_bool, &move_frozen_messages },
315 { "mua_wrapper", opt_bool, &mua_wrapper },
317 { "mysql_servers", opt_stringptr, &mysql_servers },
319 { "never_users", opt_uidlist, &never_users },
321 { "openssl_options", opt_stringptr, &openssl_options },
324 { "oracle_servers", opt_stringptr, &oracle_servers },
326 { "percent_hack_domains", opt_stringptr, &percent_hack_domains },
328 { "perl_at_start", opt_bool, &opt_perl_at_start },
329 { "perl_startup", opt_stringptr, &opt_perl_startup },
332 { "pgsql_servers", opt_stringptr, &pgsql_servers },
334 { "pid_file_path", opt_stringptr, &pid_file_path },
335 { "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts },
337 { "prdr_enable", opt_bool, &prdr_enable },
339 { "preserve_message_logs", opt_bool, &preserve_message_logs },
340 { "primary_hostname", opt_stringptr, &primary_hostname },
341 { "print_topbitchars", opt_bool, &print_topbitchars },
342 { "process_log_path", opt_stringptr, &process_log_path },
343 { "prod_requires_admin", opt_bool, &prod_requires_admin },
344 #ifdef EXPERIMENTAL_PROXY
345 { "proxy_required_hosts", opt_stringptr, &proxy_required_hosts },
347 { "qualify_domain", opt_stringptr, &qualify_domain_sender },
348 { "qualify_recipient", opt_stringptr, &qualify_domain_recipient },
349 { "queue_domains", opt_stringptr, &queue_domains },
350 { "queue_list_requires_admin",opt_bool, &queue_list_requires_admin },
351 { "queue_only", opt_bool, &queue_only },
352 { "queue_only_file", opt_stringptr, &queue_only_file },
353 { "queue_only_load", opt_fixed, &queue_only_load },
354 { "queue_only_load_latch", opt_bool, &queue_only_load_latch },
355 { "queue_only_override", opt_bool, &queue_only_override },
356 { "queue_run_in_order", opt_bool, &queue_run_in_order },
357 { "queue_run_max", opt_int, &queue_run_max },
358 { "queue_smtp_domains", opt_stringptr, &queue_smtp_domains },
359 { "receive_timeout", opt_time, &receive_timeout },
360 { "received_header_text", opt_stringptr, &received_header_text },
361 { "received_headers_max", opt_int, &received_headers_max },
362 { "recipient_unqualified_hosts", opt_stringptr, &recipient_unqualified_hosts },
363 { "recipients_max", opt_int, &recipients_max },
364 { "recipients_max_reject", opt_bool, &recipients_max_reject },
365 #ifdef EXPERIMENTAL_REDIS
366 { "redis_servers", opt_stringptr, &redis_servers },
368 { "remote_max_parallel", opt_int, &remote_max_parallel },
369 { "remote_sort_domains", opt_stringptr, &remote_sort_domains },
370 { "retry_data_expire", opt_time, &retry_data_expire },
371 { "retry_interval_max", opt_time, &retry_interval_max },
372 { "return_path_remove", opt_bool, &return_path_remove },
373 { "return_size_limit", opt_mkint|opt_hidden, &bounce_return_size_limit },
374 { "rfc1413_hosts", opt_stringptr, &rfc1413_hosts },
375 { "rfc1413_query_timeout", opt_time, &rfc1413_query_timeout },
376 { "sender_unqualified_hosts", opt_stringptr, &sender_unqualified_hosts },
377 { "smtp_accept_keepalive", opt_bool, &smtp_accept_keepalive },
378 { "smtp_accept_max", opt_int, &smtp_accept_max },
379 { "smtp_accept_max_nonmail", opt_int, &smtp_accept_max_nonmail },
380 { "smtp_accept_max_nonmail_hosts", opt_stringptr, &smtp_accept_max_nonmail_hosts },
381 { "smtp_accept_max_per_connection", opt_int, &smtp_accept_max_per_connection },
382 { "smtp_accept_max_per_host", opt_stringptr, &smtp_accept_max_per_host },
383 { "smtp_accept_queue", opt_int, &smtp_accept_queue },
384 { "smtp_accept_queue_per_connection", opt_int, &smtp_accept_queue_per_connection },
385 { "smtp_accept_reserve", opt_int, &smtp_accept_reserve },
386 { "smtp_active_hostname", opt_stringptr, &raw_active_hostname },
387 { "smtp_banner", opt_stringptr, &smtp_banner },
388 { "smtp_check_spool_space", opt_bool, &smtp_check_spool_space },
389 { "smtp_connect_backlog", opt_int, &smtp_connect_backlog },
390 { "smtp_enforce_sync", opt_bool, &smtp_enforce_sync },
391 { "smtp_etrn_command", opt_stringptr, &smtp_etrn_command },
392 { "smtp_etrn_serialize", opt_bool, &smtp_etrn_serialize },
393 { "smtp_load_reserve", opt_fixed, &smtp_load_reserve },
394 { "smtp_max_synprot_errors", opt_int, &smtp_max_synprot_errors },
395 { "smtp_max_unknown_commands",opt_int, &smtp_max_unknown_commands },
396 { "smtp_ratelimit_hosts", opt_stringptr, &smtp_ratelimit_hosts },
397 { "smtp_ratelimit_mail", opt_stringptr, &smtp_ratelimit_mail },
398 { "smtp_ratelimit_rcpt", opt_stringptr, &smtp_ratelimit_rcpt },
399 { "smtp_receive_timeout", opt_time, &smtp_receive_timeout },
400 { "smtp_reserve_hosts", opt_stringptr, &smtp_reserve_hosts },
401 { "smtp_return_error_details",opt_bool, &smtp_return_error_details },
402 #ifdef WITH_CONTENT_SCAN
403 { "spamd_address", opt_stringptr, &spamd_address },
405 #ifdef EXPERIMENTAL_SPF
406 { "spf_guess", opt_stringptr, &spf_guess },
408 { "split_spool_directory", opt_bool, &split_spool_directory },
409 { "spool_directory", opt_stringptr, &spool_directory },
411 { "sqlite_lock_timeout", opt_int, &sqlite_lock_timeout },
413 #ifdef EXPERIMENTAL_SRS
414 { "srs_config", opt_stringptr, &srs_config },
415 { "srs_hashlength", opt_int, &srs_hashlength },
416 { "srs_hashmin", opt_int, &srs_hashmin },
417 { "srs_maxage", opt_int, &srs_maxage },
418 { "srs_secrets", opt_stringptr, &srs_secrets },
419 { "srs_usehash", opt_bool, &srs_usehash },
420 { "srs_usetimestamp", opt_bool, &srs_usetimestamp },
422 { "strict_acl_vars", opt_bool, &strict_acl_vars },
423 { "strip_excess_angle_brackets", opt_bool, &strip_excess_angle_brackets },
424 { "strip_trailing_dot", opt_bool, &strip_trailing_dot },
425 { "syslog_duplication", opt_bool, &syslog_duplication },
426 { "syslog_facility", opt_stringptr, &syslog_facility_str },
427 { "syslog_processname", opt_stringptr, &syslog_processname },
428 { "syslog_timestamp", opt_bool, &syslog_timestamp },
429 { "system_filter", opt_stringptr, &system_filter },
430 { "system_filter_directory_transport", opt_stringptr,&system_filter_directory_transport },
431 { "system_filter_file_transport",opt_stringptr,&system_filter_file_transport },
432 { "system_filter_group", opt_gid, &system_filter_gid },
433 { "system_filter_pipe_transport",opt_stringptr,&system_filter_pipe_transport },
434 { "system_filter_reply_transport",opt_stringptr,&system_filter_reply_transport },
435 { "system_filter_user", opt_uid, &system_filter_uid },
436 { "tcp_nodelay", opt_bool, &tcp_nodelay },
437 #ifdef USE_TCP_WRAPPERS
438 { "tcp_wrappers_daemon_name", opt_stringptr, &tcp_wrappers_daemon_name },
440 { "timeout_frozen_after", opt_time, &timeout_frozen_after },
441 { "timezone", opt_stringptr, &timezone_string },
443 { "tls_advertise_hosts", opt_stringptr, &tls_advertise_hosts },
444 { "tls_certificate", opt_stringptr, &tls_certificate },
445 { "tls_crl", opt_stringptr, &tls_crl },
446 { "tls_dh_max_bits", opt_int, &tls_dh_max_bits },
447 { "tls_dhparam", opt_stringptr, &tls_dhparam },
448 # ifndef DISABLE_OCSP
449 { "tls_ocsp_file", opt_stringptr, &tls_ocsp_file },
451 { "tls_on_connect_ports", opt_stringptr, &tls_in.on_connect_ports },
452 { "tls_privatekey", opt_stringptr, &tls_privatekey },
453 { "tls_remember_esmtp", opt_bool, &tls_remember_esmtp },
454 { "tls_require_ciphers", opt_stringptr, &tls_require_ciphers },
455 { "tls_try_verify_hosts", opt_stringptr, &tls_try_verify_hosts },
456 { "tls_verify_certificates", opt_stringptr, &tls_verify_certificates },
457 { "tls_verify_hosts", opt_stringptr, &tls_verify_hosts },
459 { "trusted_groups", opt_gidlist, &trusted_groups },
460 { "trusted_users", opt_uidlist, &trusted_users },
461 { "unknown_login", opt_stringptr, &unknown_login },
462 { "unknown_username", opt_stringptr, &unknown_username },
463 { "untrusted_set_sender", opt_stringptr, &untrusted_set_sender },
464 { "uucp_from_pattern", opt_stringptr, &uucp_from_pattern },
465 { "uucp_from_sender", opt_stringptr, &uucp_from_sender },
466 { "warn_message_file", opt_stringptr, &warn_message_file },
467 { "write_rejectlog", opt_bool, &write_rejectlog }
470 static int optionlist_config_size =
471 sizeof(optionlist_config)/sizeof(optionlist);
475 /*************************************************
476 * Find the name of an option *
477 *************************************************/
479 /* This function is to aid debugging. Various functions take arguments that are
480 pointer variables in the options table or in option tables for various drivers.
481 For debugging output, it is useful to be able to find the name of the option
482 which is currently being processed. This function finds it, if it exists, by
483 searching the table(s).
485 Arguments: a value that is presumed to be in the table above
486 Returns: the option name, or an empty string
490 readconf_find_option(void *p)
494 transport_instance *t;
496 for (i = 0; i < optionlist_config_size; i++)
497 if (p == optionlist_config[i].value) return US optionlist_config[i].name;
499 for (r = routers; r != NULL; r = r->next)
501 router_info *ri = r->info;
502 for (i = 0; i < *ri->options_count; i++)
504 if ((ri->options[i].type & opt_mask) != opt_stringptr) continue;
505 if (p == (char *)(r->options_block) + (long int)(ri->options[i].value))
506 return US ri->options[i].name;
510 for (t = transports; t != NULL; t = t->next)
512 transport_info *ti = t->info;
513 for (i = 0; i < *ti->options_count; i++)
515 optionlist * op = &ti->options[i];
516 if ((op->type & opt_mask) != opt_stringptr) continue;
517 if (p == ( op->type & opt_public
519 : (char *)t->options_block
521 + (long int)op->value)
532 /*************************************************
533 * Deal with an assignment to a macro *
534 *************************************************/
536 /* This function is called when a line that starts with an upper case letter is
537 encountered. The argument "line" should contain a complete logical line, and
538 start with the first letter of the macro name. The macro name and the
539 replacement text are extracted and stored. Redefinition of existing,
540 non-command line, macros is permitted using '==' instead of '='.
543 s points to the start of the logical line
549 read_macro_assignment(uschar *s)
555 macro_item *mlast = NULL;
557 while (isalnum(*s) || *s == '_')
559 if (namelen >= sizeof(name) - 1)
560 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
561 "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1);
562 name[namelen++] = *s++;
566 while (isspace(*s)) s++;
568 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition");
575 while (isspace(*s)) s++;
577 /* If an existing macro of the same name was defined on the command line, we
578 just skip this definition. It's an error to attempt to redefine a macro without
579 redef set to TRUE, or to redefine a macro when it hasn't been defined earlier.
580 It is also an error to define a macro whose name begins with the name of a
581 previously defined macro. Note: it is documented that the other way round
584 for (m = macros; m != NULL; m = m->next)
586 int len = Ustrlen(m->name);
588 if (Ustrcmp(m->name, name) == 0)
590 if (!m->command_line && !redef)
591 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already "
592 "defined (use \"==\" if you want to redefine it", name);
596 if (len < namelen && Ustrstr(name, m->name) != NULL)
597 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
598 "a macro because previously defined macro \"%s\" is a substring",
601 /* We cannot have this test, because it is documented that a substring
602 macro is permitted (there is even an example).
604 * if (len > namelen && Ustrstr(m->name, name) != NULL)
605 * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
606 * "a macro because it is a substring of previously defined macro \"%s\"",
613 /* Check for an overriding command-line definition. */
615 if (m != NULL && m->command_line) return;
617 /* Redefinition must refer to an existing macro. */
622 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro "
626 /* We have a new definition. The macro_item structure includes a final vector
627 called "name" which is one byte long. Thus, adding "namelen" gives us enough
628 room to store the "name" string. */
632 m = store_get(sizeof(macro_item) + namelen);
633 if (macros == NULL) macros = m; else mlast->next = m;
634 Ustrncpy(m->name, name, namelen);
635 m->name[namelen] = 0;
637 m->command_line = FALSE;
640 /* Set the value of the new or redefined macro */
642 m->replacement = string_copy(s);
649 /*************************************************
650 * Read configuration line *
651 *************************************************/
653 /* A logical line of text is read from the configuration file into the big
654 buffer, taking account of macros, .includes, and continuations. The size of
655 big_buffer is increased if necessary. The count of configuration lines is
656 maintained. Physical input lines starting with # (ignoring leading white space,
657 and after macro replacement) and empty logical lines are always ignored.
658 Leading and trailing spaces are removed.
660 If we hit a line of the form "begin xxxx", the xxxx is placed in the
661 next_section vector, and the function returns NULL, indicating the end of a
662 configuration section. On end-of-file, NULL is returned with next_section
667 Returns: a pointer to the first non-blank in the line,
668 or NULL if eof or end of section is reached
672 get_config_line(void)
674 int startoffset = 0; /* To first non-blank char in logical line */
675 int len = 0; /* Of logical line so far */
681 /* Loop for handling continuation lines, skipping comments, and dealing with
686 if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL)
688 if (config_file_stack != NULL) /* EOF inside .include */
690 (void)fclose(config_file);
691 config_file = config_file_stack->file;
692 config_filename = config_file_stack->filename;
693 config_lineno = config_file_stack->lineno;
694 config_file_stack = config_file_stack->next;
698 /* EOF at top level */
700 if (cstate_stack_ptr >= 0)
701 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
702 "Unexpected end of configuration file: .endif missing");
704 if (len != 0) break; /* EOF after continuation */
705 next_section[0] = 0; /* EOF at start of logical line */
710 newlen = len + Ustrlen(big_buffer + len);
712 /* Handle pathologically long physical lines - yes, it did happen - by
713 extending big_buffer at this point. The code also copes with very long
716 while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n')
719 big_buffer_size += BIG_BUFFER_SIZE;
720 newbuffer = store_malloc(big_buffer_size);
722 /* This use of strcpy is OK because we know that the string in the old
723 buffer is shorter than the new buffer. */
725 Ustrcpy(newbuffer, big_buffer);
726 store_free(big_buffer);
727 big_buffer = newbuffer;
728 if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL)
730 newlen += Ustrlen(big_buffer + newlen);
733 /* Find the true start of the physical line - leading spaces are always
736 ss = big_buffer + len;
737 while (isspace(*ss)) ss++;
739 /* Process the physical line for macros. If this is the start of the logical
740 line, skip over initial text at the start of the line if it starts with an
741 upper case character followed by a sequence of name characters and an equals
742 sign, because that is the definition of a new macro, and we don't do
743 replacement therein. */
746 if (len == 0 && isupper(*s))
748 while (isalnum(*s) || *s == '_') s++;
749 while (isspace(*s)) s++;
750 if (*s != '=') s = ss; /* Not a macro definition */
753 /* For each defined macro, scan the line (from after XXX= if present),
754 replacing all occurrences of the macro. */
757 for (m = macros; m != NULL; m = m->next)
762 while ((p = Ustrstr(t, m->name)) != NULL)
765 int namelen = Ustrlen(m->name);
766 int replen = Ustrlen(m->replacement);
768 /* Expand the buffer if necessary */
770 while (newlen - namelen + replen + 1 > big_buffer_size)
772 int newsize = big_buffer_size + BIG_BUFFER_SIZE;
773 uschar *newbuffer = store_malloc(newsize);
774 memcpy(newbuffer, big_buffer, newlen + 1);
775 p = newbuffer + (p - big_buffer);
776 s = newbuffer + (s - big_buffer);
777 ss = newbuffer + (ss - big_buffer);
778 t = newbuffer + (t - big_buffer);
779 big_buffer_size = newsize;
780 store_free(big_buffer);
781 big_buffer = newbuffer;
784 /* Shuffle the remaining characters up or down in the buffer before
785 copying in the replacement text. Don't rescan the replacement for this
789 moveby = replen - namelen;
792 memmove(p + replen, pp, (big_buffer + newlen) - pp + 1);
795 Ustrncpy(p, m->replacement, replen);
801 /* An empty macro replacement at the start of a line could mean that ss no
802 longer points to the first non-blank character. */
804 while (isspace(*ss)) ss++;
806 /* Check for comment lines - these are physical lines. */
808 if (*ss == '#') continue;
810 /* Handle conditionals, which are also applied to physical lines. Conditions
811 are of the form ".ifdef ANYTEXT" and are treated as true if any macro
812 expansion occured on the rest of the line. A preliminary test for the leading
813 '.' saves effort on most lines. */
819 /* Search the list of conditional directives */
821 for (i = 0; i < cond_list_size; i++)
824 cond_item *c = cond_list+i;
825 if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue;
827 /* The following character must be white space or end of string */
829 n = ss[1 + c->namelen];
830 if (n != ' ' && n != 't' && n != '\n' && n != 0) break;
832 /* .ifdef and .ifndef push the current state onto the stack, then set
833 a new one from the table. Stack overflow is an error */
837 if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1)
838 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
839 ".%s nested too deeply", c->name);
840 cstate_stack[++cstate_stack_ptr] = cstate;
841 cstate = next_cstate[cstate][macro_found? c->action1 : c->action2];
844 /* For any of the others, stack underflow is an error. The next state
845 comes either from the stack (.endif) or from the table. */
849 if (cstate_stack_ptr < 0)
850 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
851 ".%s without matching .ifdef", c->name);
852 cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] :
853 next_cstate[cstate][macro_found? c->action1 : c->action2];
856 /* Having dealt with a directive, break the loop */
861 /* If we have handled a conditional directive, continue with the next
862 physical line. Otherwise, fall through. */
864 if (i < cond_list_size) continue;
867 /* If the conditional state is not 0 (actively using these lines), ignore
870 if (cstate != 0) continue; /* Conditional skip */
872 /* Handle .include lines - these are also physical lines. */
874 if (Ustrncmp(ss, ".include", 8) == 0 &&
876 (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18]))))
879 int include_if_exists = isspace(ss[8])? 0 : 10;
880 config_file_item *save;
883 ss += 9 + include_if_exists;
884 while (isspace(*ss)) ss++;
885 t = ss + Ustrlen(ss);
886 while (t > ss && isspace(t[-1])) t--;
887 if (*ss == '\"' && t[-1] == '\"')
895 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-"
896 "absolute path \"%s\"", ss);
898 if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue;
900 save = store_get(sizeof(config_file_item));
901 save->next = config_file_stack;
902 config_file_stack = save;
903 save->file = config_file;
904 save->filename = config_filename;
905 save->lineno = config_lineno;
907 config_file = Ufopen(ss, "rb");
908 if (config_file == NULL)
909 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included "
910 "configuration file %s", ss);
911 config_filename = string_copy(ss);
916 /* If this is the start of the logical line, remember where the non-blank
917 data starts. Otherwise shuffle down continuation lines to remove leading
921 startoffset = ss - big_buffer;
924 s = big_buffer + len;
927 memmove(s, ss, (newlen - len) - (ss - s) + 1);
932 /* Accept the new addition to the line. Remove trailing white space. */
935 while (len > 0 && isspace(big_buffer[len-1])) len--;
938 /* We are done if the line does not end in backslash and contains some data.
939 Empty logical lines are ignored. For continuations, remove the backslash and
940 go round the loop to read the continuation line. */
944 if (big_buffer[len-1] != '\\') break; /* End of logical line */
945 big_buffer[--len] = 0; /* Remove backslash */
947 } /* Loop for reading multiple physical lines */
949 /* We now have a logical line. Test for the end of a configuration section (or,
950 more accurately, for the start of the next section). Place the name of the next
951 section in next_section, and return NULL. If the name given is longer than
952 next_section, truncate it. It will be unrecognized later, because all the known
953 section names do fit. Leave space for pluralizing. */
955 s = big_buffer + startoffset; /* First non-space character */
956 if (strncmpic(s, US"begin ", 6) == 0)
959 while (isspace(*s)) s++;
960 if (big_buffer + len - s > sizeof(next_section) - 2)
961 s[sizeof(next_section) - 2] = 0;
962 Ustrcpy(next_section, s);
966 /* Return the first non-blank character. */
973 /*************************************************
975 *************************************************/
977 /* The yield is the pointer to the next uschar. Names longer than the
978 output space are silently truncated. This function is also used from acl.c when
982 name where to put the name
986 Returns: new input pointer
990 readconf_readname(uschar *name, int len, uschar *s)
993 while (isspace(*s)) s++;
996 while (isalnum(*s) || *s == '_')
998 if (p < len-1) name[p++] = *s;
1003 while (isspace(*s)) s++;
1010 /*************************************************
1011 * Read a time value *
1012 *************************************************/
1014 /* This function is also called from outside, to read argument
1015 time values. The format of a time value is:
1017 [<n>w][<n>d][<n>h][<n>m][<n>s]
1019 as long as at least one is present. If a format error is encountered,
1020 return a negative value. The value must be terminated by the given
1025 terminator required terminating character
1026 return_msec if TRUE, allow fractional seconds and return milliseconds
1028 Returns: the time value, or -1 on syntax error
1029 value is seconds if return_msec is FALSE
1030 value is milliseconds if return_msec is TRUE
1034 readconf_readtime(uschar *s, int terminator, BOOL return_msec)
1042 if (!isdigit(*s)) return -1;
1043 (void)sscanf(CS s, "%d%n", &value, &count);
1048 case 'w': value *= 7;
1049 case 'd': value *= 24;
1050 case 'h': value *= 60;
1051 case 'm': value *= 60;
1056 if (!return_msec) return -1;
1057 (void)sscanf(CS s, "%lf%n", &fraction, &count);
1059 if (*s++ != 's') return -1;
1060 yield += (int)(fraction * 1000.0);
1066 if (return_msec) value *= 1000;
1068 if (*s == terminator) return yield;
1070 /* Control never reaches here. */
1075 /*************************************************
1076 * Read a fixed point value *
1077 *************************************************/
1079 /* The value is returned *1000
1083 terminator required terminator
1085 Returns: the value, or -1 on error
1089 readconf_readfixed(uschar *s, int terminator)
1093 if (!isdigit(*s)) return -1;
1094 (void)sscanf(CS s, "%d%n", &value, &count);
1096 yield = value * 1000;
1100 while (isdigit((*(++s))))
1102 yield += (*s - '0') * m;
1107 return (*s == terminator)? yield : (-1);
1112 /*************************************************
1113 * Find option in list *
1114 *************************************************/
1116 /* The lists are always in order, so binary chop can be used.
1119 name the option name to search for
1120 ol the first entry in the option list
1121 last one more than the offset of the last entry in the option list
1123 Returns: pointer to an option entry, or NULL if not found
1127 find_option(uschar *name, optionlist *ol, int last)
1130 while (last > first)
1132 int middle = (first + last)/2;
1133 int c = Ustrcmp(name, ol[middle].name);
1134 if (c == 0) return ol + middle;
1135 else if (c > 0) first = middle + 1;
1143 /*************************************************
1144 * Find a set flag in option list *
1145 *************************************************/
1147 /* Because some versions of Unix make no restrictions on the values of uids and
1148 gids (even negative ones), we cannot represent "unset" by a special value.
1149 There is therefore a separate boolean variable for each one indicating whether
1150 a value is set or not. This function returns a pointer to the boolean, given
1151 the original option name. It is a major disaster if the flag cannot be found.
1154 name the name of the uid or gid option
1155 oltop points to the start of the relevant option list
1156 last one more than the offset of the last item in the option list
1157 data_block NULL when reading main options => data values in the option
1158 list are absolute addresses; otherwise they are byte offsets
1159 in data_block (used for driver options)
1161 Returns: a pointer to the boolean flag.
1165 get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block)
1169 sprintf(CS name2, "*set_%.50s", name);
1170 ol = find_option(name2, oltop, last);
1171 if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE,
1172 "Exim internal error: missing set flag for %s", name);
1173 return (data_block == NULL)? (BOOL *)(ol->value) :
1174 (BOOL *)((uschar *)data_block + (long int)(ol->value));
1180 /*************************************************
1181 * Output extra characters message and die *
1182 *************************************************/
1184 /* Called when an option line has junk on the end. Sometimes this is because
1185 the sysadmin thinks comments are permitted.
1188 s points to the extra characters
1189 t1..t3 strings to insert in the log message
1191 Returns: doesn't return; dies
1195 extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3)
1197 uschar *comment = US"";
1198 if (*s == '#') comment = US" (# is comment only at line start)";
1199 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1200 "extra characters follow %s%s%s%s", t1, t2, t3, comment);
1205 /*************************************************
1206 * Read rewrite information *
1207 *************************************************/
1209 /* Each line of rewrite information contains:
1211 . A complete address in the form user@domain, possibly with
1212 leading * for each part; or alternatively, a regex.
1214 . A replacement string (which will be expanded).
1216 . An optional sequence of one-letter flags, indicating which
1217 headers etc. to apply this rule to.
1219 All this is decoded and placed into a control block. The OR of the flags is
1220 maintained in a common word.
1223 p points to the string that makes up the rule
1224 existflags points to the overall flag word
1225 isglobal TRUE if reading global rewrite rules
1227 Returns: the control block for the parsed rule.
1230 static rewrite_rule *
1231 readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal)
1233 rewrite_rule *next = store_get(sizeof(rewrite_rule));
1236 next->key = string_dequote(&p);
1238 while (isspace(*p)) p++;
1240 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1241 "missing rewrite replacement string");
1244 next->replacement = string_dequote(&p);
1246 while (*p != 0) switch (*p++)
1248 case ' ': case '\t': break;
1250 case 'q': next->flags |= rewrite_quit; break;
1251 case 'w': next->flags |= rewrite_whole; break;
1253 case 'h': next->flags |= rewrite_all_headers; break;
1254 case 's': next->flags |= rewrite_sender; break;
1255 case 'f': next->flags |= rewrite_from; break;
1256 case 't': next->flags |= rewrite_to; break;
1257 case 'c': next->flags |= rewrite_cc; break;
1258 case 'b': next->flags |= rewrite_bcc; break;
1259 case 'r': next->flags |= rewrite_replyto; break;
1261 case 'E': next->flags |= rewrite_all_envelope; break;
1262 case 'F': next->flags |= rewrite_envfrom; break;
1263 case 'T': next->flags |= rewrite_envto; break;
1265 case 'Q': next->flags |= rewrite_qualify; break;
1266 case 'R': next->flags |= rewrite_repeat; break;
1269 next->flags |= rewrite_smtp;
1270 if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0)
1271 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1272 "rewrite rule has the S flag but is not a regular expression");
1276 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1277 "unknown rewrite flag character '%c' "
1278 "(could be missing quotes round replacement item)", p[-1]);
1282 /* If no action flags are set, set all the "normal" rewrites. */
1284 if ((next->flags & (rewrite_all | rewrite_smtp)) == 0)
1285 next->flags |= isglobal? rewrite_all : rewrite_all_headers;
1287 /* Remember which exist, for optimization, and return the rule */
1289 *existflags |= next->flags;
1296 /*************************************************
1297 * Read global rewrite information *
1298 *************************************************/
1300 /* Each line is a single rewrite rule; it is parsed into a control block
1301 by readconf_one_rewrite(), and its flags are ORed into the global flag
1302 word rewrite_existflags. */
1305 readconf_rewrites(void)
1307 rewrite_rule **chain = &global_rewrite_rules;
1310 while ((p = get_config_line()) != NULL)
1312 rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE);
1314 chain = &(next->next);
1320 /*************************************************
1322 *************************************************/
1324 /* Strings are read into the normal store pool. As long we aren't too
1325 near the end of the current block, the string will just use what is necessary
1326 on the top of the stacking pool, because string_cat() uses the extension
1330 s the rest of the input line
1331 name the option name (for errors)
1333 Returns: pointer to the string
1337 read_string(uschar *s, uschar *name)
1342 if (*s != '\"') return string_copy(s);
1345 yield = string_dequote(&s);
1347 if (s == ss+1 || s[-1] != '\"')
1348 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1349 "missing quote at end of string value for %s", name);
1351 if (*s != 0) extra_chars_error(s, US"string value for ", name, US"");
1357 /*************************************************
1358 * Handle option line *
1359 *************************************************/
1361 /* This function is called from several places to process a line containing the
1362 setting of an option. The first argument is the line to be decoded; it has been
1363 checked not to be empty and not to start with '#'. Trailing newlines and white
1364 space have been removed. The second argument is a pointer to the list of
1365 variable names that are to be recognized, together with their types and
1366 locations, and the third argument gives the number of entries in the list.
1368 The fourth argument is a pointer to a data block. If it is NULL, then the data
1369 values in the options list are absolute addresses. Otherwise, they are byte
1370 offsets in the data block.
1372 String option data may continue onto several lines; this function reads further
1373 data from config_file if necessary.
1375 The yield of this function is normally zero. If a string continues onto
1376 multiple lines, then the data value is permitted to be followed by a comma
1377 or a semicolon (for use in drivers) and the yield is that character.
1380 buffer contains the configuration line to be handled
1381 oltop points to the start of the relevant option list
1382 last one more than the offset of the last item in the option list
1383 data_block NULL when reading main options => data values in the option
1384 list are absolute addresses; otherwise they are byte offsets
1385 in data_block when they have opt_public set; otherwise
1386 they are byte offsets in data_block->options_block.
1387 unknown_txt format string to use in panic message for unknown option;
1388 must contain %s for option name
1389 if given as NULL, don't panic on unknown option
1391 Returns: TRUE if an option was read successfully,
1392 FALSE false for an unknown option if unknown_txt == NULL,
1393 otherwise panic and die on an unknown option
1397 readconf_handle_option(uschar *buffer, optionlist *oltop, int last,
1398 void *data_block, uschar *unknown_txt)
1402 int n, count, type, value;
1406 BOOL boolvalue = TRUE;
1407 BOOL freesptr = TRUE;
1408 optionlist *ol, *ol2;
1412 uschar *inttype = US"";
1415 uschar *saved_condition, *strtemp;
1416 uschar **str_target;
1420 /* There may be leading spaces; thereafter, we expect an option name starting
1423 while (isspace(*s)) s++;
1425 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s);
1427 /* Read the name of the option, and skip any subsequent white space. If
1428 it turns out that what we read was "hide", set the flag indicating that
1429 this is a secure option, and loop to read the next word. */
1431 for (n = 0; n < 2; n++)
1433 while (isalnum(*s) || *s == '_')
1435 if (ptr < sizeof(name)-1) name[ptr++] = *s;
1439 while (isspace(*s)) s++;
1440 if (Ustrcmp(name, "hide") != 0) break;
1441 issecure = opt_secure;
1445 /* Deal with "no_" or "not_" here for booleans */
1447 if (Ustrncmp(name, "no_", 3) == 0)
1453 if (Ustrncmp(name, "not_", 4) == 0)
1459 /* Search the list for the given name. A non-existent name, or an option that
1460 is set twice, is a disaster. */
1462 ol = find_option(name + offset, oltop, last);
1466 if (unknown_txt == NULL) return FALSE;
1467 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name);
1470 if ((ol->type & opt_set) && !(ol->type & (opt_rep_con | opt_rep_str)))
1471 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1472 "\"%s\" option set for the second time", name);
1474 ol->type |= opt_set | issecure;
1475 type = ol->type & opt_mask;
1477 /* Types with data values must be followed by '='; the "no[t]_" prefix
1478 applies only to boolean values. */
1480 if (type < opt_bool || type > opt_bool_last)
1483 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1484 "negation prefix applied to a non-boolean option");
1486 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1487 "unexpected end of line (data missing) after %s", name);
1489 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name);
1492 /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and
1493 true/false/yes/no, or, in the case of opt_expanded_bool, a general string that
1494 ultimately expands to one of those values. */
1496 else if (*s != 0 && (offset != 0 || *s != '='))
1497 extra_chars_error(s, US"boolean option ", name, US"");
1499 /* Skip white space after = */
1501 if (*s == '=') while (isspace((*(++s))));
1503 /* If there is a data block and the opt_public flag is not set, change
1504 the data block pointer to the private options block. */
1506 if (data_block != NULL && (ol->type & opt_public) == 0)
1507 data_block = (void *)(((driver_instance *)data_block)->options_block);
1509 /* Now get the data according to the type. */
1513 /* If a string value is not enclosed in quotes, it consists of
1514 the rest of the current line, verbatim. Otherwise, string escapes
1517 A transport is specified as a string, which is then looked up in the
1518 list of transports. A search type is specified as one of a number of
1521 A set or rewrite rules for a driver is specified as a string, which is
1522 then parsed into a suitable chain of control blocks.
1524 Uids and gids are specified as strings which are then looked up in the
1525 passwd file. Lists of uids and gids are similarly specified as colon-
1526 separated strings. */
1531 case opt_expand_uid:
1532 case opt_expand_gid:
1537 reset_point = sptr = read_string(s, name);
1539 /* Having read a string, we now have several different ways of using it,
1540 depending on the data type, so do another switch. If keeping the actual
1541 string is not required (because it is interpreted), freesptr is set TRUE,
1542 and at the end we reset the pool. */
1546 /* If this was a string, set the variable to point to the new string,
1547 and set the flag so its store isn't reclaimed. If it was a list of rewrite
1548 rules, we still keep the string (for printing), and parse the rules into a
1549 control block and flags word. */
1552 if (data_block == NULL)
1553 str_target = (uschar **)(ol->value);
1555 str_target = (uschar **)((uschar *)data_block + (long int)(ol->value));
1556 if (ol->type & opt_rep_con)
1558 /* We already have a condition, we're conducting a crude hack to let
1559 multiple condition rules be chained together, despite storing them in
1561 saved_condition = *str_target;
1562 strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}",
1563 saved_condition, sptr);
1564 *str_target = string_copy_malloc(strtemp);
1565 /* TODO(pdp): there is a memory leak here and just below
1566 when we set 3 or more conditions; I still don't
1567 understand the store mechanism enough to know
1568 what's the safe way to free content from an earlier store.
1569 AFAICT, stores stack, so freeing an early stored item also stores
1570 all data alloc'd after it. If we knew conditions were adjacent,
1571 we could survive that, but we don't. So I *think* we need to take
1572 another bit from opt_type to indicate "malloced"; this seems like
1573 quite a hack, especially for this one case. It also means that
1574 we can't ever reclaim the store from the *first* condition.
1576 Because we only do this once, near process start-up, I'm prepared to
1577 let this slide for the time being, even though it rankles. */
1579 else if (ol->type & opt_rep_str)
1581 uschar sep = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':';
1584 /* Strip trailing whitespace and seperators */
1585 for (cp = sptr + Ustrlen(sptr) - 1;
1586 cp >= sptr && (*cp == '\n' || *cp == '\t' || *cp == ' ' || *cp == sep);
1590 *str_target = string_copy_malloc(
1591 *str_target ? string_sprintf("%s%c%s", *str_target, sep, sptr)
1602 if (data_block == NULL)
1603 *((uschar **)(ol->value)) = sptr;
1605 *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr;
1607 if (type == opt_rewrite)
1612 rewrite_rule **chain;
1615 sprintf(CS name2, "*%.50s_rules", name);
1616 ol2 = find_option(name2, oltop, last);
1617 sprintf(CS name2, "*%.50s_flags", name);
1618 ol3 = find_option(name2, oltop, last);
1620 if (ol2 == NULL || ol3 == NULL)
1621 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1622 "rewrite rules not available for driver");
1624 if (data_block == NULL)
1626 chain = (rewrite_rule **)(ol2->value);
1627 flagptr = (int *)(ol3->value);
1631 chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value));
1632 flagptr = (int *)((uschar *)data_block + (long int)(ol3->value));
1635 while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE))
1638 rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE);
1640 chain = &(next->next);
1643 if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0)
1644 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a "
1645 "non-header rewrite - not allowed at transport time -");
1649 /* If it was an expanded uid, see if there is any expansion to be
1650 done by checking for the presence of a $ character. If there is, save it
1651 in the corresponding *expand_user option field. Otherwise, fall through
1652 to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds
1655 case opt_expand_uid:
1656 sprintf(CS name2, "*expand_%.50s", name);
1657 ol2 = find_option(name2, oltop, last);
1660 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1662 if (data_block == NULL)
1663 *((uschar **)(ol2->value)) = ss;
1665 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1669 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1675 /* Look up a fixed uid, and also make use of the corresponding gid
1676 if a passwd entry is returned and the gid has not been set. */
1679 if (!route_finduser(sptr, &pw, &uid))
1680 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr);
1681 if (data_block == NULL)
1682 *((uid_t *)(ol->value)) = uid;
1684 *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid;
1686 /* Set the flag indicating a fixed value is set */
1688 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1690 /* Handle matching gid if we have a passwd entry: done by finding the
1691 same name with terminating "user" changed to "group"; if not found,
1692 ignore. Also ignore if the value is already set. */
1694 if (pw == NULL) break;
1695 Ustrcpy(name+Ustrlen(name)-4, "group");
1696 ol2 = find_option(name, oltop, last);
1697 if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid ||
1698 (ol2->type & opt_mask) == opt_expand_gid))
1700 BOOL *set_flag = get_set_flag(name, oltop, last, data_block);
1703 if (data_block == NULL)
1704 *((gid_t *)(ol2->value)) = pw->pw_gid;
1706 *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid;
1712 /* If it was an expanded gid, see if there is any expansion to be
1713 done by checking for the presence of a $ character. If there is, save it
1714 in the corresponding *expand_user option field. Otherwise, fall through
1715 to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds
1718 case opt_expand_gid:
1719 sprintf(CS name2, "*expand_%.50s", name);
1720 ol2 = find_option(name2, oltop, last);
1723 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1725 if (data_block == NULL)
1726 *((uschar **)(ol2->value)) = ss;
1728 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1732 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1738 /* Handle freestanding gid */
1741 if (!route_findgroup(sptr, &gid))
1742 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr);
1743 if (data_block == NULL)
1744 *((gid_t *)(ol->value)) = gid;
1746 *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid;
1747 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1750 /* If it was a uid list, look up each individual entry, and build
1751 a vector of uids, with a count in the first element. Put the vector
1752 in malloc store so we can free the string. (We are reading into
1753 permanent store already.) */
1761 uschar *op = expand_string (sptr);
1764 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1765 name, expand_string_message);
1768 if (*p != 0) count++;
1769 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1770 list = store_malloc(count*sizeof(uid_t));
1771 list[ptr++] = (uid_t)(count - 1);
1773 if (data_block == NULL)
1774 *((uid_t **)(ol->value)) = list;
1776 *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1782 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1783 if (!route_finduser(big_buffer, NULL, &uid))
1784 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found",
1791 /* If it was a gid list, look up each individual entry, and build
1792 a vector of gids, with a count in the first element. Put the vector
1793 in malloc store so we can free the string. (We are reading into permanent
1802 uschar *op = expand_string (sptr);
1805 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1806 name, expand_string_message);
1809 if (*p != 0) count++;
1810 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1811 list = store_malloc(count*sizeof(gid_t));
1812 list[ptr++] = (gid_t)(count - 1);
1814 if (data_block == NULL)
1815 *((gid_t **)(ol->value)) = list;
1817 *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1823 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1824 if (!route_findgroup(big_buffer, &gid))
1825 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found",
1833 /* Release store if the value of the string doesn't need to be kept. */
1835 if (freesptr) store_reset(reset_point);
1838 /* Expanded boolean: if no characters follow, or if there are no dollar
1839 characters, this is a fixed-valued boolean, and we fall through. Otherwise,
1840 save the string for later expansion in the alternate place. */
1842 case opt_expand_bool:
1843 if (*s != 0 && Ustrchr(s, '$') != 0)
1845 sprintf(CS name2, "*expand_%.50s", name);
1846 ol2 = find_option(name2, oltop, last);
1849 reset_point = sptr = read_string(s, name);
1850 if (data_block == NULL)
1851 *((uschar **)(ol2->value)) = sptr;
1853 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr;
1860 /* Boolean: if no characters follow, the value is boolvalue. Otherwise
1861 look for yes/not/true/false. Some booleans are stored in a single bit in
1862 a single int. There's a special fudge for verify settings; without a suffix
1863 they set both xx_sender and xx_recipient. The table points to the sender
1864 value; search subsequently for the recipient. There's another special case:
1865 opt_bool_set also notes when a boolean has been set. */
1869 case opt_bool_verify:
1873 s = readconf_readname(name2, 64, s);
1874 if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0)
1876 else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0)
1878 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1879 "\"%s\" is not a valid value for the \"%s\" option", name2, name);
1880 if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2),
1881 US"for boolean option ", name);
1884 /* Handle single-bit type. */
1886 if (type == opt_bit)
1888 int bit = 1 << ((ol->type >> 16) & 31);
1889 int *ptr = (data_block == NULL)?
1890 (int *)(ol->value) :
1891 (int *)((uschar *)data_block + (long int)ol->value);
1892 if (boolvalue) *ptr |= bit; else *ptr &= ~bit;
1896 /* Handle full BOOL types */
1898 if (data_block == NULL)
1899 *((BOOL *)(ol->value)) = boolvalue;
1901 *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue;
1905 if (type == opt_bool_verify)
1907 sprintf(CS name2, "%.50s_recipient", name + offset);
1908 ol2 = find_option(name2, oltop, last);
1911 if (data_block == NULL)
1912 *((BOOL *)(ol2->value)) = boolvalue;
1914 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue;
1918 /* Note that opt_bool_set type is set, if there is somewhere to do so */
1920 else if (type == opt_bool_set)
1922 sprintf(CS name2, "*set_%.50s", name + offset);
1923 ol2 = find_option(name2, oltop, last);
1926 if (data_block == NULL)
1927 *((BOOL *)(ol2->value)) = TRUE;
1929 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE;
1938 inttype = US"octal ";
1940 /* Integer: a simple(ish) case; allow octal and hex formats, and
1941 suffixes K and M. The different types affect output, not input. */
1950 lvalue = strtol(CS s, CSS &endptr, intbase);
1953 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1956 if (errno != ERANGE)
1958 if (tolower(*endptr) == 'k')
1960 if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE;
1961 else lvalue *= 1024;
1964 else if (tolower(*endptr) == 'm')
1966 if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024))
1968 else lvalue *= 1024*1024;
1973 if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN)
1974 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1975 "absolute value of integer \"%s\" is too large (overflow)", s);
1977 while (isspace(*endptr)) endptr++;
1979 extra_chars_error(endptr, inttype, US"integer value for ", name);
1981 value = (int)lvalue;
1984 if (data_block == NULL)
1985 *((int *)(ol->value)) = value;
1987 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
1990 /* Integer held in K: again, allow octal and hex formats, and suffixes K and
1997 value = strtol(CS s, CSS &endptr, intbase);
2000 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
2003 if (errno != ERANGE)
2005 if (tolower(*endptr) == 'm')
2007 if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE;
2011 else if (tolower(*endptr) == 'k')
2017 value = (value + 512)/1024;
2021 if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2022 "absolute value of integer \"%s\" is too large (overflow)", s);
2024 while (isspace(*endptr)) endptr++;
2026 extra_chars_error(endptr, inttype, US"integer value for ", name);
2029 if (data_block == NULL)
2030 *((int *)(ol->value)) = value;
2032 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2035 /* Fixed-point number: held to 3 decimal places. */
2038 if (sscanf(CS s, "%d%n", &value, &count) != 1)
2039 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2040 "fixed-point number expected for %s", name);
2042 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2043 "integer \"%s\" is too large (overflow)", s);
2047 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2048 "integer \"%s\" is too large (overflow)", s);
2050 if (s[count] == '.')
2053 while (isdigit(s[++count]))
2055 value += (s[count] - '0') * d;
2060 while (isspace(s[count])) count++;
2063 extra_chars_error(s+count, US"fixed-point value for ", name, US"");
2065 if (data_block == NULL)
2066 *((int *)(ol->value)) = value;
2068 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2071 /* There's a special routine to read time values. */
2074 value = readconf_readtime(s, 0, FALSE);
2076 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2078 if (data_block == NULL)
2079 *((int *)(ol->value)) = value;
2081 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2084 /* A time list is a list of colon-separated times, with the first
2085 element holding the size of the list and the second the number of
2091 int *list = (data_block == NULL)?
2092 (int *)(ol->value) :
2093 (int *)((uschar *)data_block + (long int)(ol->value));
2095 if (*s != 0) for (count = 1; count <= list[0] - 2; count++)
2098 uschar *snext = Ustrchr(s, ':');
2102 while (ss > s && isspace(ss[-1])) ss--;
2105 value = readconf_readtime(s, terminator, FALSE);
2107 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2109 if (count > 1 && value <= list[count])
2110 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2111 "time value out of order for %s", name);
2112 list[count+1] = value;
2113 if (snext == NULL) break;
2115 while (isspace(*s)) s++;
2118 if (count > list[0] - 2)
2119 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s",
2121 if (count > 0 && list[2] == 0) count = 0;
2133 /*************************************************
2134 * Print a time value *
2135 *************************************************/
2138 Argument: a time value in seconds
2139 Returns: pointer to a fixed buffer containing the time as a string,
2140 in readconf_readtime() format
2144 readconf_printtime(int t)
2147 uschar *p = time_buffer;
2164 if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; }
2165 if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; }
2166 if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; }
2167 if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; }
2168 if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s);
2175 /*************************************************
2176 * Print an individual option value *
2177 *************************************************/
2179 /* This is used by the -bP option, so prints to the standard output.
2180 The entire options list is passed in as an argument, because some options come
2181 in pairs - typically uid/gid settings, which can either be explicit numerical
2182 values, or strings to be expanded later. If the numerical value is unset,
2183 search for "*expand_<name>" to see if there is a string equivalent.
2186 ol option entry, or NULL for an unknown option
2188 options_block NULL for main configuration options; otherwise points to
2189 a driver block; if the option doesn't have opt_public
2190 set, then options_block->options_block is where the item
2192 oltop points to the option list in which ol exists
2193 last one more than the offset of the last entry in optop
2194 no_labels do not show "foo = " at the start.
2200 print_ol(optionlist *ol, uschar *name, void *options_block,
2201 optionlist *oltop, int last, BOOL no_labels)
2214 printf("%s is not a known option\n", name);
2218 /* Non-admin callers cannot see options that have been flagged secure by the
2221 if (!admin_user && (ol->type & opt_secure) != 0)
2223 const char * const hidden = "<value not displayable>";
2225 printf("%s\n", hidden);
2227 printf("%s = %s\n", name, hidden);
2231 /* Else show the value of the option */
2234 if (options_block != NULL)
2236 if ((ol->type & opt_public) == 0)
2237 options_block = (void *)(((driver_instance *)options_block)->options_block);
2238 value = (void *)((uschar *)options_block + (long int)value);
2241 switch(ol->type & opt_mask)
2244 case opt_rewrite: /* Show the text value */
2245 s = *((uschar **)value);
2246 if (!no_labels) printf("%s = ", name);
2247 printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE));
2251 if (!no_labels) printf("%s = ", name);
2252 printf("%d\n", *((int *)value));
2257 int x = *((int *)value);
2258 if (x != 0 && (x & 1023) == 0)
2262 if ((x & 1023) == 0)
2267 if (!no_labels) printf("%s = ", name);
2268 printf("%d%c\n", x, c);
2272 if (!no_labels) printf("%s = ", name);
2280 int x = *((int *)value);
2281 if (!no_labels) printf("%s = ", name);
2282 if (x == 0) printf("0\n");
2283 else if ((x & 1023) == 0) printf("%dM\n", x >> 10);
2284 else printf("%dK\n", x);
2289 if (!no_labels) printf("%s = ", name);
2290 printf("%#o\n", *((int *)value));
2293 /* Can be negative only when "unset", in which case integer */
2297 int x = *((int *)value);
2300 if (x < 0) printf("%s =\n", name); else
2302 if (!no_labels) printf("%s = ", name);
2303 printf("%d.", x/1000);
2316 /* If the numerical value is unset, try for the string value */
2318 case opt_expand_uid:
2319 if (! *get_set_flag(name, oltop, last, options_block))
2321 sprintf(CS name2, "*expand_%.50s", name);
2322 ol2 = find_option(name2, oltop, last);
2325 void *value2 = ol2->value;
2326 if (options_block != NULL)
2327 value2 = (void *)((uschar *)options_block + (long int)value2);
2328 s = *((uschar **)value2);
2329 if (!no_labels) printf("%s = ", name);
2330 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2335 /* Else fall through */
2338 if (!no_labels) printf("%s = ", name);
2339 if (! *get_set_flag(name, oltop, last, options_block))
2343 pw = getpwuid(*((uid_t *)value));
2345 printf("%ld\n", (long int)(*((uid_t *)value)));
2346 else printf("%s\n", pw->pw_name);
2350 /* If the numerical value is unset, try for the string value */
2352 case opt_expand_gid:
2353 if (! *get_set_flag(name, oltop, last, options_block))
2355 sprintf(CS name2, "*expand_%.50s", name);
2356 ol2 = find_option(name2, oltop, last);
2357 if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr)
2359 void *value2 = ol2->value;
2360 if (options_block != NULL)
2361 value2 = (void *)((uschar *)options_block + (long int)value2);
2362 s = *((uschar **)value2);
2363 if (!no_labels) printf("%s = ", name);
2364 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2369 /* Else fall through */
2372 if (!no_labels) printf("%s = ", name);
2373 if (! *get_set_flag(name, oltop, last, options_block))
2377 gr = getgrgid(*((int *)value));
2379 printf("%ld\n", (long int)(*((int *)value)));
2380 else printf("%s\n", gr->gr_name);
2385 uidlist = *((uid_t **)value);
2386 if (!no_labels) printf("%s =", name);
2387 if (uidlist != NULL)
2391 if (no_labels) sep = '\0';
2392 for (i = 1; i <= (int)(uidlist[0]); i++)
2394 uschar *name = NULL;
2395 pw = getpwuid(uidlist[i]);
2396 if (pw != NULL) name = US pw->pw_name;
2397 if (sep != '\0') printf("%c", sep);
2398 if (name != NULL) printf("%s", name);
2399 else printf("%ld", (long int)(uidlist[i]));
2407 gidlist = *((gid_t **)value);
2408 if (!no_labels) printf("%s =", name);
2409 if (gidlist != NULL)
2413 if (no_labels) sep = '\0';
2414 for (i = 1; i <= (int)(gidlist[0]); i++)
2416 uschar *name = NULL;
2417 gr = getgrgid(gidlist[i]);
2418 if (gr != NULL) name = US gr->gr_name;
2419 if (sep != '\0') printf("%c", sep);
2420 if (name != NULL) printf("%s", name);
2421 else printf("%ld", (long int)(gidlist[i]));
2429 if (!no_labels) printf("%s = ", name);
2430 printf("%s\n", readconf_printtime(*((int *)value)));
2436 int *list = (int *)value;
2437 if (!no_labels) printf("%s = ", name);
2438 for (i = 0; i < list[1]; i++)
2439 printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2]));
2445 printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))?
2449 case opt_expand_bool:
2450 sprintf(CS name2, "*expand_%.50s", name);
2451 ol2 = find_option(name2, oltop, last);
2452 if (ol2 != NULL && ol2->value != NULL)
2454 void *value2 = ol2->value;
2455 if (options_block != NULL)
2456 value2 = (void *)((uschar *)options_block + (long int)value2);
2457 s = *((uschar **)value2);
2460 if (!no_labels) printf("%s = ", name);
2461 printf("%s\n", string_printing(s));
2464 /* s == NULL => string not set; fall through */
2470 case opt_bool_verify:
2472 printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name);
2479 /*************************************************
2480 * Print value from main configuration *
2481 *************************************************/
2483 /* This function, called as a result of encountering the -bP option,
2484 causes the value of any main configuration variable to be output if the
2485 second argument is NULL. There are some special values:
2487 all print all main configuration options
2488 configure_file print the name of the configuration file
2489 routers print the routers' configurations
2490 transports print the transports' configuration
2491 authenticators print the authenticators' configuration
2492 macros print the macros' configuration
2493 router_list print a list of router names
2494 transport_list print a list of transport names
2495 authenticator_list print a list of authentication mechanism names
2496 macro_list print a list of macro names
2497 +name print a named list item
2498 local_scan print the local_scan options
2499 environment print the used execution environment
2501 If the second argument is not NULL, it must be one of "router", "transport",
2502 "authenticator" or "macro" in which case the first argument identifies the
2503 driver whose options are to be printed.
2506 name option name if type == NULL; else driver name
2507 type NULL or driver type name, as described above
2508 no_labels avoid the "foo = " at the start of an item
2514 readconf_print(uschar *name, uschar *type, BOOL no_labels)
2516 BOOL names_only = FALSE;
2518 optionlist *ol2 = NULL;
2519 driver_instance *d = NULL;
2530 static uschar *types[] = { US"address", US"domain", US"host",
2532 static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor,
2533 &hostlist_anchor, &localpartlist_anchor };
2535 for (i = 0; i < 4; i++)
2537 t = tree_search(*(anchors[i]), name+1);
2542 printf("%s\n", ((namedlist_block *)(t->data.ptr))->string);
2544 printf("%slist %s = %s\n", types[i], name+1,
2545 ((namedlist_block *)(t->data.ptr))->string);
2550 printf("no address, domain, host, or local part list called \"%s\" "
2551 "exists\n", name+1);
2556 if (Ustrcmp(name, "configure_file") == 0)
2558 printf("%s\n", CS config_main_filename);
2562 if (Ustrcmp(name, "all") == 0)
2564 for (ol = optionlist_config;
2565 ol < optionlist_config + optionlist_config_size; ol++)
2567 if ((ol->type & opt_hidden) == 0)
2568 print_ol(ol, US ol->name, NULL,
2569 optionlist_config, optionlist_config_size,
2575 if (Ustrcmp(name, "local_scan") == 0)
2577 #ifndef LOCAL_SCAN_HAS_OPTIONS
2578 printf("local_scan() options are not supported\n");
2580 for (ol = local_scan_options;
2581 ol < local_scan_options + local_scan_options_count; ol++)
2583 print_ol(ol, US ol->name, NULL, local_scan_options,
2584 local_scan_options_count, no_labels);
2590 if (Ustrcmp(name, "routers") == 0)
2595 else if (Ustrcmp(name, "transports") == 0)
2597 type = US"transport";
2601 else if (Ustrcmp(name, "authenticators") == 0)
2603 type = US"authenticator";
2607 else if (Ustrcmp(name, "macros") == 0)
2613 else if (Ustrcmp(name, "router_list") == 0)
2620 else if (Ustrcmp(name, "transport_list") == 0)
2622 type = US"transport";
2627 else if (Ustrcmp(name, "authenticator_list") == 0)
2629 type = US"authenticator";
2634 else if (Ustrcmp(name, "macro_list") == 0)
2641 else if (Ustrcmp(name, "environment") == 0)
2647 for (p = USS environ; *p; p++) ;
2648 n = p - USS environ;
2649 qsort(environ, p - USS environ, sizeof(*p), (__compar_fn_t) string_compare_by_pointer);
2651 for (p = USS environ; *p; p++)
2653 if (no_labels) *(Ustrchr(*p, '=')) = '\0';
2662 print_ol(find_option(name, optionlist_config, optionlist_config_size),
2663 name, NULL, optionlist_config, optionlist_config_size, no_labels);
2668 /* Handle the options for a router or transport. Skip options that are flagged
2669 as hidden. Some of these are options with names starting with '*', used for
2670 internal alternative representations of other options (which the printing
2671 function will sort out). Others are synonyms kept for backward compatibility.
2674 if (Ustrcmp(type, "router") == 0)
2676 d = (driver_instance *)routers;
2677 ol2 = optionlist_routers;
2678 size = optionlist_routers_size;
2680 else if (Ustrcmp(type, "transport") == 0)
2682 d = (driver_instance *)transports;
2683 ol2 = optionlist_transports;
2684 size = optionlist_transports_size;
2686 else if (Ustrcmp(type, "authenticator") == 0)
2688 d = (driver_instance *)auths;
2689 ol2 = optionlist_auths;
2690 size = optionlist_auths_size;
2693 else if (Ustrcmp(type, "macro") == 0)
2695 /* People store passwords in macros and they were previously not available
2696 for printing. So we have an admin_users restriction. */
2699 fprintf(stderr, "exim: permission denied\n");
2702 for (m = macros; m != NULL; m = m->next)
2704 if (name == NULL || Ustrcmp(name, m->name) == 0)
2707 printf("%s\n", CS m->name);
2709 printf("%s=%s\n", CS m->name, CS m->replacement);
2715 printf("%s %s not found\n", type, name);
2721 for (; d != NULL; d = d->next) printf("%s\n", CS d->name);
2725 /* Either search for a given driver, or print all of them */
2727 for (; d != NULL; d = d->next)
2730 printf("\n%s %s:\n", d->name, type);
2731 else if (Ustrcmp(d->name, name) != 0) continue;
2733 for (ol = ol2; ol < ol2 + size; ol++)
2735 if ((ol->type & opt_hidden) == 0)
2736 print_ol(ol, US ol->name, d, ol2, size, no_labels);
2739 for (ol = d->info->options;
2740 ol < d->info->options + *(d->info->options_count); ol++)
2742 if ((ol->type & opt_hidden) == 0)
2743 print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels);
2745 if (name != NULL) return;
2747 if (name != NULL) printf("%s %s not found\n", type, name);
2752 /*************************************************
2753 * Read a named list item *
2754 *************************************************/
2756 /* This function reads a name and a list (i.e. string). The name is used to
2757 save the list in a tree, sorted by its name. Each entry also has a number,
2758 which can be used for caching tests, but if the string contains any expansion
2759 items other than $key, the number is set negative to inhibit caching. This
2760 mechanism is used for domain, host, and address lists that are referenced by
2764 anchorp points to the tree anchor
2765 numberp points to the current number for this tree
2766 max the maximum number permitted
2767 s the text of the option line, starting immediately after the name
2769 tname the name of the list type, for messages
2775 read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s,
2778 BOOL forcecache = FALSE;
2781 namedlist_block *nb = store_get(sizeof(namedlist_block));
2783 if (Ustrncmp(s, "_cache", 6) == 0)
2790 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line");
2792 if (*numberp >= max)
2793 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n",
2796 while (isspace(*s)) s++;
2798 while (isalnum(*s) || *s == '_') s++;
2799 t = store_get(sizeof(tree_node) + s-ss);
2800 Ustrncpy(t->name, ss, s-ss);
2802 while (isspace(*s)) s++;
2804 if (!tree_insertnode(anchorp, t))
2805 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2806 "duplicate name \"%s\" for a named %s", t->name, tname);
2809 nb->number = *numberp;
2812 if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2813 "missing '=' after \"%s\"", t->name);
2814 while (isspace(*s)) s++;
2815 nb->string = read_string(s, t->name);
2816 nb->cache_data = NULL;
2818 /* Check the string for any expansions; if any are found, mark this list
2819 uncacheable unless the user has explicited forced caching. */
2821 if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1;
2827 /*************************************************
2828 * Unpick data for a rate limit *
2829 *************************************************/
2831 /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four
2835 s string, in the form t,b,f,l
2836 where t is the threshold (integer)
2837 b is the initial delay (time)
2838 f is the multiplicative factor (fixed point)
2839 k is the maximum time (time)
2840 threshold where to store threshold
2841 base where to store base in milliseconds
2842 factor where to store factor in milliseconds
2843 limit where to store limit
2845 Returns: nothing (panics on error)
2849 unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor,
2852 uschar bstring[16], lstring[16];
2854 if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring,
2855 factor, lstring) == 4)
2857 *base = readconf_readtime(bstring, 0, TRUE);
2858 *limit = readconf_readtime(lstring, 0, TRUE);
2859 if (*base >= 0 && *limit >= 0) return;
2861 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s);
2867 /*************************************************
2868 * Drop privs for checking TLS config *
2869 *************************************************/
2871 /* We want to validate TLS options during readconf, but do not want to be
2872 root when we call into the TLS library, in case of library linkage errors
2873 which cause segfaults; before this check, those were always done as the Exim
2874 runtime user and it makes sense to continue with that.
2876 Assumes: tls_require_ciphers has been set, if it will be
2877 exim_user has been set, if it will be
2878 exim_group has been set, if it will be
2880 Returns: bool for "okay"; false will cause caller to immediately exit.
2885 tls_dropprivs_validate_require_cipher(void)
2887 const uschar *errmsg;
2890 void (*oldsignal)(int);
2892 oldsignal = signal(SIGCHLD, SIG_DFL);
2895 if ((pid = fork()) < 0)
2896 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check");
2900 /* in some modes, will have dropped privilege already */
2902 exim_setugid(exim_uid, exim_gid, FALSE,
2903 US"calling tls_validate_require_cipher");
2905 errmsg = tls_validate_require_cipher();
2908 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
2909 "tls_require_ciphers invalid: %s", errmsg);
2916 rc = waitpid(pid, &status, 0);
2917 } while (rc < 0 && errno == EINTR);
2920 debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n",
2923 signal(SIGCHLD, oldsignal);
2927 #endif /* SUPPORT_TLS */
2932 /*************************************************
2933 * Read main configuration options *
2934 *************************************************/
2936 /* This function is the first to be called for configuration reading. It
2937 opens the configuration file and reads general configuration settings until
2938 it reaches the end of the configuration section. The file is then left open so
2939 that the remaining configuration data can subsequently be read if needed for
2942 The configuration file must be owned either by root or exim, and be writeable
2943 only by root or uid/gid exim. The values for Exim's uid and gid can be changed
2944 in the config file, so the test is done on the compiled in values. A slight
2945 anomaly, to be carefully documented.
2947 The name of the configuration file is taken from a list that is included in the
2948 binary of Exim. It can be altered from the command line, but if that is done,
2949 root privilege is immediately withdrawn unless the caller is root or exim.
2950 The first file on the list that exists is used.
2952 For use on multiple systems that share file systems, first look for a
2953 configuration file whose name has the current node name on the end. If that is
2954 not found, try the generic name. For really contorted configurations, that run
2955 multiple Exims with different uid settings, first try adding the effective uid
2956 before the node name. These complications are going to waste resources on most
2957 systems. Therefore they are available only when requested by compile-time
2964 struct stat statbuf;
2965 uschar *s, *filename;
2966 uschar *list = config_main_filelist;
2968 /* Loop through the possible file names */
2970 while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
2974 /* To avoid confusion: Exim changes to / at the very beginning and
2975 * and to $spool_directory later. */
2976 if (filename[0] != '/')
2978 fprintf(stderr, "-C %s: only absolute names are allowed\n", filename);
2982 /* Cut out all the fancy processing unless specifically wanted */
2984 #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
2985 uschar *suffix = filename + Ustrlen(filename);
2987 /* Try for the node-specific file if a node name exists */
2989 #ifdef CONFIGURE_FILE_USE_NODE
2991 if (uname(&uts) >= 0)
2993 #ifdef CONFIGURE_FILE_USE_EUID
2994 sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename);
2995 config_file = Ufopen(filename, "rb");
2996 if (config_file == NULL)
2997 #endif /* CONFIGURE_FILE_USE_EUID */
2999 sprintf(CS suffix, ".%.256s", uts.nodename);
3000 config_file = Ufopen(filename, "rb");
3003 #endif /* CONFIGURE_FILE_USE_NODE */
3005 /* Otherwise, try the generic name, possibly with the euid added */
3007 #ifdef CONFIGURE_FILE_USE_EUID
3008 if (config_file == NULL)
3010 sprintf(CS suffix, ".%ld", (long int)original_euid);
3011 config_file = Ufopen(filename, "rb");
3013 #endif /* CONFIGURE_FILE_USE_EUID */
3015 /* Finally, try the unadorned name */
3017 if (config_file == NULL)
3020 config_file = Ufopen(filename, "rb");
3022 #else /* if neither defined */
3024 /* This is the common case when the fancy processing is not included. */
3026 config_file = Ufopen(filename, "rb");
3029 /* If the file does not exist, continue to try any others. For any other
3030 error, break out (and die). */
3032 if (config_file != NULL || errno != ENOENT) break;
3035 /* On success, save the name for verification; config_filename is used when
3036 logging configuration errors (it changes for .included files) whereas
3037 config_main_filename is the name shown by -bP. Failure to open a configuration
3038 file is a serious disaster. */
3040 if (config_file != NULL)
3042 config_filename = config_main_filename = string_copy(filename);
3046 if (filename == NULL)
3047 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): "
3048 "%s", config_main_filelist);
3050 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno,
3051 "configuration file %s", filename));
3054 /* Check the status of the file we have opened, if we have retained root
3055 privileges and the file isn't /dev/null (which *should* be 0666). */
3057 if (trusted_config && Ustrcmp(filename, US"/dev/null"))
3059 if (fstat(fileno(config_file), &statbuf) != 0)
3060 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s",
3063 if ((statbuf.st_uid != root_uid /* owner not root */
3064 #ifdef CONFIGURE_OWNER
3065 && statbuf.st_uid != config_uid /* owner not the special one */
3068 (statbuf.st_gid != root_gid /* group not root & */
3069 #ifdef CONFIGURE_GROUP
3070 && statbuf.st_gid != config_gid /* group not the special one */
3072 && (statbuf.st_mode & 020) != 0) || /* group writeable */
3074 ((statbuf.st_mode & 2) != 0)) /* world writeable */
3076 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the "
3077 "wrong owner, group, or mode", big_buffer);
3080 /* Process the main configuration settings. They all begin with a lower case
3081 letter. If we see something starting with an upper case letter, it is taken as
3082 a macro definition. */
3084 while ((s = get_config_line()) != NULL)
3086 if (isupper(s[0])) read_macro_assignment(s);
3088 else if (Ustrncmp(s, "domainlist", 10) == 0)
3089 read_named_list(&domainlist_anchor, &domainlist_count,
3090 MAX_NAMED_LIST, s+10, US"domain list");
3092 else if (Ustrncmp(s, "hostlist", 8) == 0)
3093 read_named_list(&hostlist_anchor, &hostlist_count,
3094 MAX_NAMED_LIST, s+8, US"host list");
3096 else if (Ustrncmp(s, US"addresslist", 11) == 0)
3097 read_named_list(&addresslist_anchor, &addresslist_count,
3098 MAX_NAMED_LIST, s+11, US"address list");
3100 else if (Ustrncmp(s, US"localpartlist", 13) == 0)
3101 read_named_list(&localpartlist_anchor, &localpartlist_count,
3102 MAX_NAMED_LIST, s+13, US"local part list");
3105 (void) readconf_handle_option(s, optionlist_config, optionlist_config_size,
3106 NULL, US"main option \"%s\" unknown");
3110 /* If local_sender_retain is set, local_from_check must be unset. */
3112 if (local_sender_retain && local_from_check)
3113 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and "
3114 "local_sender_retain are set; this combination is not allowed");
3116 /* If the timezone string is empty, set it to NULL, implying no TZ variable
3119 if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL;
3121 /* The max retry interval must not be greater than 24 hours. */
3123 if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60;
3125 /* remote_max_parallel must be > 0 */
3127 if (remote_max_parallel <= 0) remote_max_parallel = 1;
3129 /* Save the configured setting of freeze_tell, so we can re-instate it at the
3130 start of a new SMTP message. */
3132 freeze_tell_config = freeze_tell;
3134 /* The primary host name may be required for expansion of spool_directory
3135 and log_file_path, so make sure it is set asap. It is obtained from uname(),
3136 but if that yields an unqualified value, make a FQDN by using gethostbyname to
3137 canonize it. Some people like upper case letters in their host names, so we
3138 don't force the case. */
3140 if (primary_hostname == NULL)
3144 if (uname(&uts) < 0)
3145 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name");
3146 hostname = US uts.nodename;
3148 if (Ustrchr(hostname, '.') == NULL)
3151 struct hostent *hostdata;
3154 if (!disable_ipv6 && (dns_ipv4_lookup == NULL ||
3155 match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN,
3165 #if HAVE_GETIPNODEBYNAME
3167 hostdata = getipnodebyname(CS hostname, af, 0, &error_num);
3169 hostdata = gethostbyname2(CS hostname, af);
3172 hostdata = gethostbyname(CS hostname);
3175 if (hostdata != NULL)
3177 hostname = US hostdata->h_name;
3181 if (af == AF_INET) break;
3186 primary_hostname = string_copy(hostname);
3189 /* Set up default value for smtp_active_hostname */
3191 smtp_active_hostname = primary_hostname;
3193 /* If spool_directory wasn't set in the build-time configuration, it must have
3194 got set above. Of course, writing to the log may not work if log_file_path is
3195 not set, but it will at least get to syslog or somewhere, with any luck. */
3197 if (*spool_directory == 0)
3198 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot "
3201 /* Expand the spool directory name; it may, for example, contain the primary
3202 host name. Same comment about failure. */
3204 s = expand_string(spool_directory);
3206 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory "
3207 "\"%s\": %s", spool_directory, expand_string_message);
3208 spool_directory = s;
3210 /* Expand log_file_path, which must contain "%s" in any component that isn't
3211 the null string or "syslog". It is also allowed to contain one instance of %D
3212 or %M. However, it must NOT contain % followed by anything else. */
3214 if (*log_file_path != 0)
3217 int sep = ':'; /* Fixed for log file path */
3218 s = expand_string(log_file_path);
3220 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path "
3221 "\"%s\": %s", log_file_path, expand_string_message);
3224 while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL)
3227 if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue;
3228 t = Ustrstr(sss, "%s");
3230 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not "
3231 "contain \"%%s\"", sss);
3233 t = Ustrchr(sss, '%');
3236 if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL)
3237 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains "
3238 "unexpected \"%%\" character", s);
3245 /* Interpret syslog_facility into an integer argument for 'ident' param to
3246 openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the
3249 if (syslog_facility_str != NULL)
3252 uschar *s = syslog_facility_str;
3254 if ((Ustrlen(syslog_facility_str) >= 4) &&
3255 (strncmpic(syslog_facility_str, US"log_", 4) == 0))
3258 for (i = 0; i < syslog_list_size; i++)
3260 if (strcmpic(s, syslog_list[i].name) == 0)
3262 syslog_facility = syslog_list[i].value;
3267 if (i >= syslog_list_size)
3269 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3270 "failed to interpret syslog_facility \"%s\"", syslog_facility_str);
3274 /* Expand pid_file_path */
3276 if (*pid_file_path != 0)
3278 s = expand_string(pid_file_path);
3280 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path "
3281 "\"%s\": %s", pid_file_path, expand_string_message);
3285 /* Set default value of process_log_path */
3287 if (process_log_path == NULL || *process_log_path =='\0')
3288 process_log_path = string_sprintf("%s/exim-process.info", spool_directory);
3290 /* Compile the regex for matching a UUCP-style "From_" line in an incoming
3293 regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE);
3295 /* Unpick the SMTP rate limiting options, if set */
3297 if (smtp_ratelimit_mail != NULL)
3299 unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold,
3300 &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit);
3303 if (smtp_ratelimit_rcpt != NULL)
3305 unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold,
3306 &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit);
3309 /* The qualify domains default to the primary host name */
3311 if (qualify_domain_sender == NULL)
3312 qualify_domain_sender = primary_hostname;
3313 if (qualify_domain_recipient == NULL)
3314 qualify_domain_recipient = qualify_domain_sender;
3316 /* Setting system_filter_user in the configuration sets the gid as well if a
3317 name is given, but a numerical value does not. */
3319 if (system_filter_uid_set && !system_filter_gid_set)
3321 struct passwd *pw = getpwuid(system_filter_uid);
3323 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld",
3324 (long int)system_filter_uid);
3325 system_filter_gid = pw->pw_gid;
3326 system_filter_gid_set = TRUE;
3329 /* If the errors_reply_to field is set, check that it is syntactically valid
3330 and ensure it contains a domain. */
3332 if (errors_reply_to != NULL)
3335 int start, end, domain;
3336 uschar *recipient = parse_extract_address(errors_reply_to, &errmess,
3337 &start, &end, &domain, FALSE);
3339 if (recipient == NULL)
3340 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3341 "error in errors_reply_to (%s): %s", errors_reply_to, errmess);
3344 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3345 "errors_reply_to (%s) does not contain a domain", errors_reply_to);
3348 /* If smtp_accept_queue or smtp_accept_max_per_host is set, then
3349 smtp_accept_max must also be set. */
3351 if (smtp_accept_max == 0 &&
3352 (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL))
3353 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3354 "smtp_accept_max must be set if smtp_accept_queue or "
3355 "smtp_accept_max_per_host is set");
3357 /* Set up the host number if anything is specified. It is an expanded string
3358 so that it can be computed from the host name, for example. We do this last
3359 so as to ensure that everything else is set up before the expansion. */
3361 if (host_number_string != NULL)
3365 uschar *s = expand_string(host_number_string);
3367 log_write(0, LOG_MAIN|LOG_PANIC_DIE,
3368 "failed to expand localhost_number \"%s\": %s",
3369 host_number_string, expand_string_message);
3370 n = Ustrtol(s, &end, 0);
3371 while (isspace(*end)) end++;
3373 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3374 "localhost_number value is not a number: %s", s);
3375 if (n > LOCALHOST_MAX)
3376 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3377 "localhost_number is greater than the maximum allowed value (%d)",
3383 /* If tls_verify_hosts is set, tls_verify_certificates must also be set */
3385 if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) &&
3386 tls_verify_certificates == NULL)
3387 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3388 "tls_%sverify_hosts is set, but tls_verify_certificates is not set",
3389 (tls_verify_hosts != NULL)? "" : "try_");
3391 /* This also checks that the library linkage is working and we can call
3392 routines in it, so call even if tls_require_ciphers is unset */
3393 if (!tls_dropprivs_validate_require_cipher())
3396 /* Magic number: at time of writing, 1024 has been the long-standing value
3397 used by so many clients, and what Exim used to use always, that it makes
3398 sense to just min-clamp this max-clamp at that. */
3399 if (tls_dh_max_bits < 1024)
3400 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3401 "tls_dh_max_bits is too small, must be at least 1024 for interop");
3403 /* If openssl_options is set, validate it */
3404 if (openssl_options != NULL)
3407 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3408 "openssl_options is set but we're using GnuTLS");
3411 if (!(tls_openssl_options_parse(openssl_options, &dummy)))
3412 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3413 "openssl_options parse error: %s", openssl_options);
3417 if (gnutls_require_kx || gnutls_require_mac || gnutls_require_proto)
3418 log_write(0, LOG_MAIN, "WARNING: main options"
3419 " gnutls_require_kx, gnutls_require_mac and gnutls_require_protocols"
3421 #endif /*SUPPORT_TLS*/
3423 if ((!add_environment || *add_environment == '\0') && !keep_environment)
3424 log_write(0, LOG_MAIN,
3425 "WARNING: purging the environment.\n"
3426 " Suggested action: use keep_environment and add_environment.\n");
3431 /*************************************************
3432 * Initialize one driver *
3433 *************************************************/
3435 /* This is called once the driver's generic options, if any, have been read.
3436 We can now find the driver, set up defaults for the private options, and
3437 unset any "set" bits in the private options table (which might have been
3438 set by another incarnation of the same driver).
3441 d pointer to driver instance block, with generic
3443 drivers_available vector of available drivers
3444 size_of_info size of each block in drivers_available
3445 class class of driver, for error message
3447 Returns: pointer to the driver info block
3450 static driver_info *
3451 init_driver(driver_instance *d, driver_info *drivers_available,
3452 int size_of_info, uschar *class)
3456 for (dd = drivers_available; dd->driver_name[0] != 0;
3457 dd = (driver_info *)(((uschar *)dd) + size_of_info))
3459 if (Ustrcmp(d->driver_name, dd->driver_name) == 0)
3462 int len = dd->options_len;
3464 d->options_block = store_get(len);
3465 memcpy(d->options_block, dd->options_block, len);
3466 for (i = 0; i < *(dd->options_count); i++)
3467 dd->options[i].type &= ~opt_set;
3472 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3473 "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name);
3475 return NULL; /* never obeyed */
3481 /*************************************************
3482 * Initialize driver list *
3483 *************************************************/
3485 /* This function is called for routers, transports, and authentication
3486 mechanisms. It reads the data from the current point in the configuration file
3487 up to the end of the section, and sets up a chain of instance blocks according
3488 to the file's contents. The file will already have been opened by a call to
3489 readconf_main, and must be left open for subsequent reading of further data.
3491 Any errors cause a panic crash. Note that the blocks with names driver_info and
3492 driver_instance must map the first portions of all the _info and _instance
3493 blocks for this shared code to work.
3496 class "router", "transport", or "authenticator"
3497 anchor &routers, &transports, &auths
3498 drivers_available available drivers
3499 size_of_info size of each info block
3500 instance_default points to default data for an instance
3501 instance_size size of instance block
3502 driver_optionlist generic option list
3503 driver_optionlist_count count of generic option list
3509 readconf_driver_init(
3511 driver_instance **anchor,
3512 driver_info *drivers_available,
3514 void *instance_default,
3516 optionlist *driver_optionlist,
3517 int driver_optionlist_count)
3519 driver_instance **p = anchor;
3520 driver_instance *d = NULL;
3523 while ((buffer = get_config_line()) != NULL)
3528 /* Read the first name on the line and test for the start of a new driver. A
3529 macro definition indicates the end of the previous driver. If this isn't the
3530 start of a new driver, the line will be re-read. */
3532 s = readconf_readname(name, sizeof(name), buffer);
3534 /* Handle macro definition, first finishing off the initialization of the
3535 previous driver, if any. */
3537 if (isupper(*name) && *s == '=')
3541 if (d->driver_name == NULL)
3542 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3543 "no driver defined for %s \"%s\"", class, d->name);
3547 read_macro_assignment(buffer);
3551 /* If the line starts with a name terminated by a colon, we are at the
3552 start of the definition of a new driver. The rest of the line must be
3559 /* Finish off initializing the previous driver. */
3563 if (d->driver_name == NULL)
3564 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3565 "no driver defined for %s \"%s\"", class, d->name);
3569 /* Check that we haven't already got a driver of this name */
3571 for (d = *anchor; d != NULL; d = d->next)
3572 if (Ustrcmp(name, d->name) == 0)
3573 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3574 "there are two %ss called \"%s\"", class, name);
3576 /* Set up a new driver instance data block on the chain, with
3577 its default values installed. */
3579 d = store_get(instance_size);
3580 memcpy(d, instance_default, instance_size);
3583 d->name = string_copy(name);
3585 /* Clear out the "set" bits in the generic options */
3587 for (i = 0; i < driver_optionlist_count; i++)
3588 driver_optionlist[i].type &= ~opt_set;
3590 /* Check nothing more on this line, then do the next loop iteration. */
3592 while (isspace(*s)) s++;
3593 if (*s != 0) extra_chars_error(s, US"driver name ", name, US"");
3597 /* Not the start of a new driver. Give an error if we have not set up a
3598 current driver yet. */
3600 if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3601 "%s name missing", class);
3603 /* First look to see if this is a generic option; if it is "driver",
3604 initialize the driver. If is it not a generic option, we can look for a
3605 private option provided that the driver has been previously set up. */
3607 if (readconf_handle_option(buffer, driver_optionlist,
3608 driver_optionlist_count, d, NULL))
3610 if (d->info == NULL && d->driver_name != NULL)
3611 init_driver(d, drivers_available, size_of_info, class);
3614 /* Handle private options - pass the generic block because some may
3615 live therein. A flag with each option indicates if it is in the public
3618 else if (d->info != NULL)
3620 readconf_handle_option(buffer, d->info->options,
3621 *(d->info->options_count), d, US"option \"%s\" unknown");
3624 /* The option is not generic and the driver name has not yet been given. */
3626 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown "
3627 "(\"driver\" must be specified before any private options)", name);
3630 /* Run the initialization function for the final driver. */
3634 if (d->driver_name == NULL)
3635 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3636 "no driver defined for %s \"%s\"", class, d->name);
3643 /*************************************************
3644 * Check driver dependency *
3645 *************************************************/
3647 /* This function is passed a driver instance and a string. It checks whether
3648 any of the string options for the driver contains the given string as an
3652 d points to a driver instance block
3653 s the string to search for
3655 Returns: TRUE if a dependency is found
3659 readconf_depends(driver_instance *d, uschar *s)
3661 int count = *(d->info->options_count);
3665 for (ol = d->info->options; ol < d->info->options + count; ol++)
3667 void *options_block;
3669 int type = ol->type & opt_mask;
3670 if (type != opt_stringptr) continue;
3671 options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d;
3672 value = *(uschar **)((uschar *)options_block + (long int)(ol->value));
3673 if (value != NULL && (ss = Ustrstr(value, s)) != NULL)
3675 if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') ||
3676 isalnum(ss[Ustrlen(s)])) continue;
3677 DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n",
3678 d->name, ol->name, s);
3683 DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s);
3690 /*************************************************
3691 * Decode an error type for retries *
3692 *************************************************/
3694 /* This function is global because it is also called from the main
3695 program when testing retry information. It decodes strings such as "quota_7d"
3696 into numerical error codes.
3699 pp points to start of text
3700 p points past end of text
3701 basic_errno points to an int to receive the main error number
3702 more_errno points to an int to receive the secondary error data
3704 Returns: NULL if decoded correctly; else points to error text
3708 readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno)
3712 while (q < p && *q != '_') q++;
3715 if (len == 5 && strncmpic(pp, US"quota", len) == 0)
3717 *basic_errno = ERRNO_EXIMQUOTA;
3718 if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0)
3719 return US"bad time value";
3722 else if (len == 7 && strncmpic(pp, US"refused", len) == 0)
3724 *basic_errno = ECONNREFUSED;
3727 if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M';
3728 else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A';
3729 else return US"A or MX expected after \"refused\"";
3733 else if (len == 7 && strncmpic(pp, US"timeout", len) == 0)
3735 *basic_errno = ETIMEDOUT;
3739 int xlen = p - q - 1;
3742 static uschar *extras[] =
3743 { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" };
3744 static int values[] =
3745 { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' };
3747 for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++)
3749 if (strncmpic(x, extras[i], xlen) == 0)
3751 *more_errno = values[i];
3756 if (i >= sizeof(extras)/sizeof(uschar *))
3758 if (strncmpic(x, US"DNS", xlen) == 0)
3760 log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer "
3761 "available in retry rules (it has never worked) - treated as "
3764 else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\"";
3769 else if (strncmpic(pp, US"mail_4", 6) == 0 ||
3770 strncmpic(pp, US"rcpt_4", 6) == 0 ||
3771 strncmpic(pp, US"data_4", 6) == 0)
3774 int x = 255; /* means "any 4xx code" */
3775 if (p != pp + 8) bad = TRUE; else
3777 int a = pp[6], b = pp[7];
3781 if (isdigit(b)) x += b - '0';
3782 else if (b == 'x') x += 100;
3785 else if (a != 'x' || b != 'x') bad = TRUE;
3789 return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where "
3790 "x is literal and d is any digit", pp);
3792 *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX :
3793 (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX;
3794 *more_errno = x << 8;
3797 else if (len == 4 && strncmpic(pp, US"auth", len) == 0 &&
3798 strncmpic(q+1, US"failed", p-q-1) == 0)
3799 *basic_errno = ERRNO_AUTHFAIL;
3801 else if (strncmpic(pp, US"lost_connection", p - pp) == 0)
3802 *basic_errno = ERRNO_SMTPCLOSED;
3804 else if (strncmpic(pp, US"tls_required", p - pp) == 0)
3805 *basic_errno = ERRNO_TLSREQUIRED;
3807 else if (len != 1 || Ustrncmp(pp, "*", 1) != 0)
3808 return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp);
3816 /*************************************************
3817 * Read retry information *
3818 *************************************************/
3820 /* Each line of retry information contains:
3822 . A domain name pattern or an address pattern;
3824 . An error name, possibly with additional data, or *;
3826 . An optional sequence of retry items, each consisting of an identifying
3827 letter, a cutoff time, and optional parameters.
3829 All this is decoded and placed into a control block. */
3832 /* Subroutine to read an argument, preceded by a comma and terminated
3833 by comma, semicolon, whitespace, or newline. The types are: 0 = time value,
3834 1 = fixed point number (returned *1000).
3837 paddr pointer to pointer to current character; updated
3838 type 0 => read a time; 1 => read a fixed point number
3840 Returns: time in seconds or fixed point number * 1000
3844 retry_arg(uschar **paddr, int type)
3849 if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected");
3851 while (isspace(*p)) p++;
3853 while (isalnum(*p) || (type == 1 && *p == '.')) p++;
3855 if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';')
3856 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected");
3862 return readconf_readtime(pp, *p, FALSE);
3864 return readconf_readfixed(pp, *p);
3866 return 0; /* Keep picky compilers happy */
3869 /* The function proper */
3872 readconf_retries(void)
3874 retry_config **chain = &retries;
3878 while ((p = get_config_line()) != NULL)
3880 retry_rule **rchain;
3883 next = store_get(sizeof(retry_config));
3886 chain = &(next->next);
3887 next->basic_errno = next->more_errno = 0;
3888 next->senders = NULL;
3890 rchain = &(next->rules);
3892 next->pattern = string_dequote(&p);
3893 while (isspace(*p)) p++;
3895 while (mac_isgraph(*p)) p++;
3896 if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3897 "missing error type in retry rule");
3899 /* Test error names for things we understand. */
3901 if ((error = readconf_retry_error(pp, p, &(next->basic_errno),
3902 &(next->more_errno))) != NULL)
3903 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error);
3905 /* There may be an optional address list of senders to be used as another
3906 constraint on the rule. This was added later, so the syntax is a bit of a
3907 fudge. Anything that is not a retry rule starting "F," or "G," is treated as
3910 while (isspace(*p)) p++;
3911 if (Ustrncmp(p, "senders", 7) == 0)
3914 while (isspace(*p)) p++;
3915 if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3916 "\"=\" expected after \"senders\" in retry rule");
3917 while (isspace(*p)) p++;
3918 next->senders = string_dequote(&p);
3921 /* Now the retry rules. Keep the maximum timeout encountered. */
3923 while (isspace(*p)) p++;
3927 retry_rule *rule = store_get(sizeof(retry_rule));
3929 rchain = &(rule->next);
3931 rule->rule = toupper(*p++);
3932 rule->timeout = retry_arg(&p, 0);
3933 if (rule->timeout > retry_maximum_timeout)
3934 retry_maximum_timeout = rule->timeout;
3938 case 'F': /* Fixed interval */
3939 rule->p1 = retry_arg(&p, 0);
3942 case 'G': /* Geometrically increasing intervals */
3943 case 'H': /* Ditto, but with randomness */
3944 rule->p1 = retry_arg(&p, 0);
3945 rule->p2 = retry_arg(&p, 1);
3949 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter");
3953 if (rule->timeout <= 0 || rule->p1 <= 0 ||
3954 (rule->rule != 'F' && rule->p2 < 1000))
3955 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3956 "bad parameters for retry rule");
3958 while (isspace(*p)) p++;
3962 while (isspace(*p)) p++;
3965 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected");
3972 /*************************************************
3973 * Initialize authenticators *
3974 *************************************************/
3976 /* Read the authenticators section of the configuration file.
3985 auth_instance *au, *bu;
3986 readconf_driver_init(US"authenticator",
3987 (driver_instance **)(&auths), /* chain anchor */
3988 (driver_info *)auths_available, /* available drivers */
3989 sizeof(auth_info), /* size of info block */
3990 &auth_defaults, /* default values for generic options */
3991 sizeof(auth_instance), /* size of instance block */
3992 optionlist_auths, /* generic options */
3993 optionlist_auths_size);
3995 for (au = auths; au != NULL; au = au->next)
3997 if (au->public_name == NULL)
3998 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for "
3999 "the %s authenticator", au->name);
4000 for (bu = au->next; bu != NULL; bu = bu->next)
4002 if (strcmpic(au->public_name, bu->public_name) == 0)
4004 if ((au->client && bu->client) || (au->server && bu->server))
4005 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators "
4006 "(%s and %s) have the same public name (%s)",
4007 (au->client)? US"client" : US"server", au->name, bu->name,
4017 /*************************************************
4018 * Read ACL information *
4019 *************************************************/
4021 /* If this run of Exim is not doing something that involves receiving a
4022 message, we can just skip over the ACL information. No need to parse it.
4024 First, we have a function for acl_read() to call back to get the next line. We
4025 need to remember the line we passed, because at the end it will contain the
4026 name of the next ACL. */
4028 static uschar *acl_line;
4033 acl_line = get_config_line();
4038 /* Now the main function:
4049 /* Read each ACL and add it into the tree. Macro (re)definitions are allowed
4052 acl_line = get_config_line();
4054 while(acl_line != NULL)
4060 p = readconf_readname(name, sizeof(name), acl_line);
4061 if (isupper(*name) && *p == '=')
4063 read_macro_assignment(acl_line);
4064 acl_line = get_config_line();
4068 if (*p != ':' || name[0] == 0)
4069 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name");
4071 node = store_get(sizeof(tree_node) + Ustrlen(name));
4072 Ustrcpy(node->name, name);
4073 if (!tree_insertnode(&acl_anchor, node))
4074 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4075 "there are two ACLs called \"%s\"", name);
4077 node->data.ptr = acl_read(acl_callback, &error);
4079 if (node->data.ptr == NULL && error != NULL)
4080 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error);
4086 /*************************************************
4087 * Read configuration for local_scan() *
4088 *************************************************/
4090 /* This function is called after "begin local_scan" is encountered in the
4091 configuration file. If the local_scan() function allows for configuration
4092 options, we can process them. Otherwise, we expire in a panic.
4099 local_scan_init(void)
4101 #ifndef LOCAL_SCAN_HAS_OPTIONS
4102 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: "
4103 "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)");
4107 while ((p = get_config_line()) != NULL)
4109 (void) readconf_handle_option(p, local_scan_options, local_scan_options_count,
4110 NULL, US"local_scan option \"%s\" unknown");
4117 /*************************************************
4118 * Read rest of configuration (after main) *
4119 *************************************************/
4121 /* This function reads the rest of the runtime configuration, after the main
4122 configuration. It is called only when actually needed. Each subsequent section
4123 of the configuration starts with a line of the form
4127 where the name is "routers", "transports", etc. A section is terminated by
4128 hitting the next "begin" line, and the next name is left in next_section.
4129 Because it may confuse people as to whether the names are singular or plural,
4130 we add "s" if it's missing. There is always enough room in next_section for
4131 this. This function is basically just a switch.
4137 static uschar *section_list[] = {
4151 while(next_section[0] != 0)
4155 int last = sizeof(section_list) / sizeof(uschar *);
4157 int n = Ustrlen(next_section);
4159 if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s");
4163 int c = strcmpic(next_section, section_list[mid]);
4165 if (c > 0) first = mid + 1; else last = mid;
4167 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4168 "\"%.*s\" is not a known configuration section name", n, next_section);
4169 mid = (last + first)/2;
4173 if (((had ^= bit) & bit) == 0)
4174 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4175 "\"%.*s\" section is repeated in the configuration file", n,
4180 case 0: readconf_acl(); break;
4181 case 1: auths_init(); break;
4182 case 2: local_scan_init(); break;
4183 case 3: readconf_retries(); break;
4184 case 4: readconf_rewrites(); break;
4185 case 5: route_init(); break;
4186 case 6: transport_init(); break;
4190 (void)fclose(config_file);
4195 /* End of readconf.c */