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 { "exim_group", opt_gid, &exim_gid },
241 { "exim_path", opt_stringptr, &exim_path },
242 { "exim_user", opt_uid, &exim_uid },
243 { "extra_local_interfaces", opt_stringptr, &extra_local_interfaces },
244 { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments },
245 { "finduser_retries", opt_int, &finduser_retries },
246 { "freeze_tell", opt_stringptr, &freeze_tell },
247 { "gecos_name", opt_stringptr, &gecos_name },
248 { "gecos_pattern", opt_stringptr, &gecos_pattern },
250 { "gnutls_allow_auto_pkcs11", opt_bool, &gnutls_allow_auto_pkcs11 },
251 { "gnutls_compat_mode", opt_bool, &gnutls_compat_mode },
252 /* These three gnutls_require_* options stopped working in Exim 4.80 */
253 /* From 4.83 we log a warning; a future relase will remove them */
254 { "gnutls_require_kx", opt_stringptr, &gnutls_require_kx },
255 { "gnutls_require_mac", opt_stringptr, &gnutls_require_mac },
256 { "gnutls_require_protocols", opt_stringptr, &gnutls_require_proto },
258 { "header_line_maxsize", opt_int, &header_line_maxsize },
259 { "header_maxsize", opt_int, &header_maxsize },
260 { "headers_charset", opt_stringptr, &headers_charset },
261 { "helo_accept_junk_hosts", opt_stringptr, &helo_accept_junk_hosts },
262 { "helo_allow_chars", opt_stringptr, &helo_allow_chars },
263 { "helo_lookup_domains", opt_stringptr, &helo_lookup_domains },
264 { "helo_try_verify_hosts", opt_stringptr, &helo_try_verify_hosts },
265 { "helo_verify_hosts", opt_stringptr, &helo_verify_hosts },
266 { "hold_domains", opt_stringptr, &hold_domains },
267 { "host_lookup", opt_stringptr, &host_lookup },
268 { "host_lookup_order", opt_stringptr, &host_lookup_order },
269 { "host_reject_connection", opt_stringptr, &host_reject_connection },
270 { "hosts_connection_nolog", opt_stringptr, &hosts_connection_nolog },
271 { "hosts_treat_as_local", opt_stringptr, &hosts_treat_as_local },
273 { "ibase_servers", opt_stringptr, &ibase_servers },
275 { "ignore_bounce_errors_after", opt_time, &ignore_bounce_errors_after },
276 { "ignore_fromline_hosts", opt_stringptr, &ignore_fromline_hosts },
277 { "ignore_fromline_local", opt_bool, &ignore_fromline_local },
278 { "keep_environment", opt_stringptr, &keep_environment },
279 { "keep_malformed", opt_time, &keep_malformed },
281 { "ldap_ca_cert_dir", opt_stringptr, &eldap_ca_cert_dir },
282 { "ldap_ca_cert_file", opt_stringptr, &eldap_ca_cert_file },
283 { "ldap_cert_file", opt_stringptr, &eldap_cert_file },
284 { "ldap_cert_key", opt_stringptr, &eldap_cert_key },
285 { "ldap_cipher_suite", opt_stringptr, &eldap_cipher_suite },
286 { "ldap_default_servers", opt_stringptr, &eldap_default_servers },
287 { "ldap_require_cert", opt_stringptr, &eldap_require_cert },
288 { "ldap_start_tls", opt_bool, &eldap_start_tls },
289 { "ldap_version", opt_int, &eldap_version },
291 { "local_from_check", opt_bool, &local_from_check },
292 { "local_from_prefix", opt_stringptr, &local_from_prefix },
293 { "local_from_suffix", opt_stringptr, &local_from_suffix },
294 { "local_interfaces", opt_stringptr, &local_interfaces },
295 { "local_scan_timeout", opt_time, &local_scan_timeout },
296 { "local_sender_retain", opt_bool, &local_sender_retain },
297 { "localhost_number", opt_stringptr, &host_number_string },
298 { "log_file_path", opt_stringptr, &log_file_path },
299 { "log_selector", opt_stringptr, &log_selector_string },
300 { "log_timezone", opt_bool, &log_timezone },
301 { "lookup_open_max", opt_int, &lookup_open_max },
302 { "max_username_length", opt_int, &max_username_length },
303 { "message_body_newlines", opt_bool, &message_body_newlines },
304 { "message_body_visible", opt_mkint, &message_body_visible },
305 { "message_id_header_domain", opt_stringptr, &message_id_domain },
306 { "message_id_header_text", opt_stringptr, &message_id_text },
307 { "message_logs", opt_bool, &message_logs },
308 { "message_size_limit", opt_stringptr, &message_size_limit },
309 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
310 { "move_frozen_messages", opt_bool, &move_frozen_messages },
312 { "mua_wrapper", opt_bool, &mua_wrapper },
314 { "mysql_servers", opt_stringptr, &mysql_servers },
316 { "never_users", opt_uidlist, &never_users },
318 { "openssl_options", opt_stringptr, &openssl_options },
321 { "oracle_servers", opt_stringptr, &oracle_servers },
323 { "percent_hack_domains", opt_stringptr, &percent_hack_domains },
325 { "perl_at_start", opt_bool, &opt_perl_at_start },
326 { "perl_startup", opt_stringptr, &opt_perl_startup },
329 { "pgsql_servers", opt_stringptr, &pgsql_servers },
331 { "pid_file_path", opt_stringptr, &pid_file_path },
332 { "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts },
334 { "prdr_enable", opt_bool, &prdr_enable },
336 { "preserve_message_logs", opt_bool, &preserve_message_logs },
337 { "primary_hostname", opt_stringptr, &primary_hostname },
338 { "print_topbitchars", opt_bool, &print_topbitchars },
339 { "process_log_path", opt_stringptr, &process_log_path },
340 { "prod_requires_admin", opt_bool, &prod_requires_admin },
341 #ifdef EXPERIMENTAL_PROXY
342 { "proxy_required_hosts", opt_stringptr, &proxy_required_hosts },
344 { "qualify_domain", opt_stringptr, &qualify_domain_sender },
345 { "qualify_recipient", opt_stringptr, &qualify_domain_recipient },
346 { "queue_domains", opt_stringptr, &queue_domains },
347 { "queue_list_requires_admin",opt_bool, &queue_list_requires_admin },
348 { "queue_only", opt_bool, &queue_only },
349 { "queue_only_file", opt_stringptr, &queue_only_file },
350 { "queue_only_load", opt_fixed, &queue_only_load },
351 { "queue_only_load_latch", opt_bool, &queue_only_load_latch },
352 { "queue_only_override", opt_bool, &queue_only_override },
353 { "queue_run_in_order", opt_bool, &queue_run_in_order },
354 { "queue_run_max", opt_int, &queue_run_max },
355 { "queue_smtp_domains", opt_stringptr, &queue_smtp_domains },
356 { "receive_timeout", opt_time, &receive_timeout },
357 { "received_header_text", opt_stringptr, &received_header_text },
358 { "received_headers_max", opt_int, &received_headers_max },
359 { "recipient_unqualified_hosts", opt_stringptr, &recipient_unqualified_hosts },
360 { "recipients_max", opt_int, &recipients_max },
361 { "recipients_max_reject", opt_bool, &recipients_max_reject },
362 #ifdef EXPERIMENTAL_REDIS
363 { "redis_servers", opt_stringptr, &redis_servers },
365 { "remote_max_parallel", opt_int, &remote_max_parallel },
366 { "remote_sort_domains", opt_stringptr, &remote_sort_domains },
367 { "retry_data_expire", opt_time, &retry_data_expire },
368 { "retry_interval_max", opt_time, &retry_interval_max },
369 { "return_path_remove", opt_bool, &return_path_remove },
370 { "return_size_limit", opt_mkint|opt_hidden, &bounce_return_size_limit },
371 { "rfc1413_hosts", opt_stringptr, &rfc1413_hosts },
372 { "rfc1413_query_timeout", opt_time, &rfc1413_query_timeout },
373 { "sender_unqualified_hosts", opt_stringptr, &sender_unqualified_hosts },
374 { "smtp_accept_keepalive", opt_bool, &smtp_accept_keepalive },
375 { "smtp_accept_max", opt_int, &smtp_accept_max },
376 { "smtp_accept_max_nonmail", opt_int, &smtp_accept_max_nonmail },
377 { "smtp_accept_max_nonmail_hosts", opt_stringptr, &smtp_accept_max_nonmail_hosts },
378 { "smtp_accept_max_per_connection", opt_int, &smtp_accept_max_per_connection },
379 { "smtp_accept_max_per_host", opt_stringptr, &smtp_accept_max_per_host },
380 { "smtp_accept_queue", opt_int, &smtp_accept_queue },
381 { "smtp_accept_queue_per_connection", opt_int, &smtp_accept_queue_per_connection },
382 { "smtp_accept_reserve", opt_int, &smtp_accept_reserve },
383 { "smtp_active_hostname", opt_stringptr, &raw_active_hostname },
384 { "smtp_banner", opt_stringptr, &smtp_banner },
385 { "smtp_check_spool_space", opt_bool, &smtp_check_spool_space },
386 { "smtp_connect_backlog", opt_int, &smtp_connect_backlog },
387 { "smtp_enforce_sync", opt_bool, &smtp_enforce_sync },
388 { "smtp_etrn_command", opt_stringptr, &smtp_etrn_command },
389 { "smtp_etrn_serialize", opt_bool, &smtp_etrn_serialize },
390 { "smtp_load_reserve", opt_fixed, &smtp_load_reserve },
391 { "smtp_max_synprot_errors", opt_int, &smtp_max_synprot_errors },
392 { "smtp_max_unknown_commands",opt_int, &smtp_max_unknown_commands },
393 { "smtp_ratelimit_hosts", opt_stringptr, &smtp_ratelimit_hosts },
394 { "smtp_ratelimit_mail", opt_stringptr, &smtp_ratelimit_mail },
395 { "smtp_ratelimit_rcpt", opt_stringptr, &smtp_ratelimit_rcpt },
396 { "smtp_receive_timeout", opt_time, &smtp_receive_timeout },
397 { "smtp_reserve_hosts", opt_stringptr, &smtp_reserve_hosts },
398 { "smtp_return_error_details",opt_bool, &smtp_return_error_details },
399 #ifdef WITH_CONTENT_SCAN
400 { "spamd_address", opt_stringptr, &spamd_address },
402 #ifdef EXPERIMENTAL_SPF
403 { "spf_guess", opt_stringptr, &spf_guess },
405 { "split_spool_directory", opt_bool, &split_spool_directory },
406 { "spool_directory", opt_stringptr, &spool_directory },
408 { "sqlite_lock_timeout", opt_int, &sqlite_lock_timeout },
410 #ifdef EXPERIMENTAL_SRS
411 { "srs_config", opt_stringptr, &srs_config },
412 { "srs_hashlength", opt_int, &srs_hashlength },
413 { "srs_hashmin", opt_int, &srs_hashmin },
414 { "srs_maxage", opt_int, &srs_maxage },
415 { "srs_secrets", opt_stringptr, &srs_secrets },
416 { "srs_usehash", opt_bool, &srs_usehash },
417 { "srs_usetimestamp", opt_bool, &srs_usetimestamp },
419 { "strict_acl_vars", opt_bool, &strict_acl_vars },
420 { "strip_excess_angle_brackets", opt_bool, &strip_excess_angle_brackets },
421 { "strip_trailing_dot", opt_bool, &strip_trailing_dot },
422 { "syslog_duplication", opt_bool, &syslog_duplication },
423 { "syslog_facility", opt_stringptr, &syslog_facility_str },
424 { "syslog_processname", opt_stringptr, &syslog_processname },
425 { "syslog_timestamp", opt_bool, &syslog_timestamp },
426 { "system_filter", opt_stringptr, &system_filter },
427 { "system_filter_directory_transport", opt_stringptr,&system_filter_directory_transport },
428 { "system_filter_file_transport",opt_stringptr,&system_filter_file_transport },
429 { "system_filter_group", opt_gid, &system_filter_gid },
430 { "system_filter_pipe_transport",opt_stringptr,&system_filter_pipe_transport },
431 { "system_filter_reply_transport",opt_stringptr,&system_filter_reply_transport },
432 { "system_filter_user", opt_uid, &system_filter_uid },
433 { "tcp_nodelay", opt_bool, &tcp_nodelay },
434 #ifdef USE_TCP_WRAPPERS
435 { "tcp_wrappers_daemon_name", opt_stringptr, &tcp_wrappers_daemon_name },
437 { "timeout_frozen_after", opt_time, &timeout_frozen_after },
438 { "timezone", opt_stringptr, &timezone_string },
440 { "tls_advertise_hosts", opt_stringptr, &tls_advertise_hosts },
441 { "tls_certificate", opt_stringptr, &tls_certificate },
442 { "tls_crl", opt_stringptr, &tls_crl },
443 { "tls_dh_max_bits", opt_int, &tls_dh_max_bits },
444 { "tls_dhparam", opt_stringptr, &tls_dhparam },
445 # ifndef DISABLE_OCSP
446 { "tls_ocsp_file", opt_stringptr, &tls_ocsp_file },
448 { "tls_on_connect_ports", opt_stringptr, &tls_in.on_connect_ports },
449 { "tls_privatekey", opt_stringptr, &tls_privatekey },
450 { "tls_remember_esmtp", opt_bool, &tls_remember_esmtp },
451 { "tls_require_ciphers", opt_stringptr, &tls_require_ciphers },
452 { "tls_try_verify_hosts", opt_stringptr, &tls_try_verify_hosts },
453 { "tls_verify_certificates", opt_stringptr, &tls_verify_certificates },
454 { "tls_verify_hosts", opt_stringptr, &tls_verify_hosts },
456 { "trusted_groups", opt_gidlist, &trusted_groups },
457 { "trusted_users", opt_uidlist, &trusted_users },
458 { "unknown_login", opt_stringptr, &unknown_login },
459 { "unknown_username", opt_stringptr, &unknown_username },
460 { "untrusted_set_sender", opt_stringptr, &untrusted_set_sender },
461 { "uucp_from_pattern", opt_stringptr, &uucp_from_pattern },
462 { "uucp_from_sender", opt_stringptr, &uucp_from_sender },
463 { "warn_message_file", opt_stringptr, &warn_message_file },
464 { "write_rejectlog", opt_bool, &write_rejectlog }
467 static int optionlist_config_size =
468 sizeof(optionlist_config)/sizeof(optionlist);
472 /*************************************************
473 * Find the name of an option *
474 *************************************************/
476 /* This function is to aid debugging. Various functions take arguments that are
477 pointer variables in the options table or in option tables for various drivers.
478 For debugging output, it is useful to be able to find the name of the option
479 which is currently being processed. This function finds it, if it exists, by
480 searching the table(s).
482 Arguments: a value that is presumed to be in the table above
483 Returns: the option name, or an empty string
487 readconf_find_option(void *p)
491 transport_instance *t;
493 for (i = 0; i < optionlist_config_size; i++)
494 if (p == optionlist_config[i].value) return US optionlist_config[i].name;
496 for (r = routers; r != NULL; r = r->next)
498 router_info *ri = r->info;
499 for (i = 0; i < ri->options_count[0]; i++)
501 if ((ri->options[i].type & opt_mask) != opt_stringptr) continue;
502 if (p == (char *)(r->options_block) + (long int)(ri->options[i].value))
503 return US ri->options[i].name;
507 for (t = transports; t != NULL; t = t->next)
509 transport_info *ti = t->info;
510 for (i = 0; i < ti->options_count[0]; i++)
512 if ((ti->options[i].type & opt_mask) != opt_stringptr) continue;
513 if (p == (char *)(t->options_block) + (long int)(ti->options[i].value))
514 return US ti->options[i].name;
524 /*************************************************
525 * Deal with an assignment to a macro *
526 *************************************************/
528 /* This function is called when a line that starts with an upper case letter is
529 encountered. The argument "line" should contain a complete logical line, and
530 start with the first letter of the macro name. The macro name and the
531 replacement text are extracted and stored. Redefinition of existing,
532 non-command line, macros is permitted using '==' instead of '='.
535 s points to the start of the logical line
541 read_macro_assignment(uschar *s)
547 macro_item *mlast = NULL;
549 while (isalnum(*s) || *s == '_')
551 if (namelen >= sizeof(name) - 1)
552 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
553 "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1);
554 name[namelen++] = *s++;
558 while (isspace(*s)) s++;
560 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition");
567 while (isspace(*s)) s++;
569 /* If an existing macro of the same name was defined on the command line, we
570 just skip this definition. It's an error to attempt to redefine a macro without
571 redef set to TRUE, or to redefine a macro when it hasn't been defined earlier.
572 It is also an error to define a macro whose name begins with the name of a
573 previously defined macro. Note: it is documented that the other way round
576 for (m = macros; m != NULL; m = m->next)
578 int len = Ustrlen(m->name);
580 if (Ustrcmp(m->name, name) == 0)
582 if (!m->command_line && !redef)
583 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already "
584 "defined (use \"==\" if you want to redefine it", name);
588 if (len < namelen && Ustrstr(name, m->name) != NULL)
589 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
590 "a macro because previously defined macro \"%s\" is a substring",
593 /* We cannot have this test, because it is documented that a substring
594 macro is permitted (there is even an example).
596 * if (len > namelen && Ustrstr(m->name, name) != NULL)
597 * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
598 * "a macro because it is a substring of previously defined macro \"%s\"",
605 /* Check for an overriding command-line definition. */
607 if (m != NULL && m->command_line) return;
609 /* Redefinition must refer to an existing macro. */
614 log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro "
618 /* We have a new definition. The macro_item structure includes a final vector
619 called "name" which is one byte long. Thus, adding "namelen" gives us enough
620 room to store the "name" string. */
624 m = store_get(sizeof(macro_item) + namelen);
625 if (macros == NULL) macros = m; else mlast->next = m;
626 Ustrncpy(m->name, name, namelen);
627 m->name[namelen] = 0;
629 m->command_line = FALSE;
632 /* Set the value of the new or redefined macro */
634 m->replacement = string_copy(s);
641 /*************************************************
642 * Read configuration line *
643 *************************************************/
645 /* A logical line of text is read from the configuration file into the big
646 buffer, taking account of macros, .includes, and continuations. The size of
647 big_buffer is increased if necessary. The count of configuration lines is
648 maintained. Physical input lines starting with # (ignoring leading white space,
649 and after macro replacement) and empty logical lines are always ignored.
650 Leading and trailing spaces are removed.
652 If we hit a line of the form "begin xxxx", the xxxx is placed in the
653 next_section vector, and the function returns NULL, indicating the end of a
654 configuration section. On end-of-file, NULL is returned with next_section
659 Returns: a pointer to the first non-blank in the line,
660 or NULL if eof or end of section is reached
664 get_config_line(void)
666 int startoffset = 0; /* To first non-blank char in logical line */
667 int len = 0; /* Of logical line so far */
673 /* Loop for handling continuation lines, skipping comments, and dealing with
678 if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL)
680 if (config_file_stack != NULL) /* EOF inside .include */
682 (void)fclose(config_file);
683 config_file = config_file_stack->file;
684 config_filename = config_file_stack->filename;
685 config_lineno = config_file_stack->lineno;
686 config_file_stack = config_file_stack->next;
690 /* EOF at top level */
692 if (cstate_stack_ptr >= 0)
693 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
694 "Unexpected end of configuration file: .endif missing");
696 if (len != 0) break; /* EOF after continuation */
697 next_section[0] = 0; /* EOF at start of logical line */
702 newlen = len + Ustrlen(big_buffer + len);
704 /* Handle pathologically long physical lines - yes, it did happen - by
705 extending big_buffer at this point. The code also copes with very long
708 while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n')
711 big_buffer_size += BIG_BUFFER_SIZE;
712 newbuffer = store_malloc(big_buffer_size);
714 /* This use of strcpy is OK because we know that the string in the old
715 buffer is shorter than the new buffer. */
717 Ustrcpy(newbuffer, big_buffer);
718 store_free(big_buffer);
719 big_buffer = newbuffer;
720 if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL)
722 newlen += Ustrlen(big_buffer + newlen);
725 /* Find the true start of the physical line - leading spaces are always
728 ss = big_buffer + len;
729 while (isspace(*ss)) ss++;
731 /* Process the physical line for macros. If this is the start of the logical
732 line, skip over initial text at the start of the line if it starts with an
733 upper case character followed by a sequence of name characters and an equals
734 sign, because that is the definition of a new macro, and we don't do
735 replacement therein. */
738 if (len == 0 && isupper(*s))
740 while (isalnum(*s) || *s == '_') s++;
741 while (isspace(*s)) s++;
742 if (*s != '=') s = ss; /* Not a macro definition */
745 /* For each defined macro, scan the line (from after XXX= if present),
746 replacing all occurrences of the macro. */
749 for (m = macros; m != NULL; m = m->next)
754 while ((p = Ustrstr(t, m->name)) != NULL)
757 int namelen = Ustrlen(m->name);
758 int replen = Ustrlen(m->replacement);
760 /* Expand the buffer if necessary */
762 while (newlen - namelen + replen + 1 > big_buffer_size)
764 int newsize = big_buffer_size + BIG_BUFFER_SIZE;
765 uschar *newbuffer = store_malloc(newsize);
766 memcpy(newbuffer, big_buffer, newlen + 1);
767 p = newbuffer + (p - big_buffer);
768 s = newbuffer + (s - big_buffer);
769 ss = newbuffer + (ss - big_buffer);
770 t = newbuffer + (t - big_buffer);
771 big_buffer_size = newsize;
772 store_free(big_buffer);
773 big_buffer = newbuffer;
776 /* Shuffle the remaining characters up or down in the buffer before
777 copying in the replacement text. Don't rescan the replacement for this
781 moveby = replen - namelen;
784 memmove(p + replen, pp, (big_buffer + newlen) - pp + 1);
787 Ustrncpy(p, m->replacement, replen);
793 /* An empty macro replacement at the start of a line could mean that ss no
794 longer points to the first non-blank character. */
796 while (isspace(*ss)) ss++;
798 /* Check for comment lines - these are physical lines. */
800 if (*ss == '#') continue;
802 /* Handle conditionals, which are also applied to physical lines. Conditions
803 are of the form ".ifdef ANYTEXT" and are treated as true if any macro
804 expansion occured on the rest of the line. A preliminary test for the leading
805 '.' saves effort on most lines. */
811 /* Search the list of conditional directives */
813 for (i = 0; i < cond_list_size; i++)
816 cond_item *c = cond_list+i;
817 if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue;
819 /* The following character must be white space or end of string */
821 n = ss[1 + c->namelen];
822 if (n != ' ' && n != 't' && n != '\n' && n != 0) break;
824 /* .ifdef and .ifndef push the current state onto the stack, then set
825 a new one from the table. Stack overflow is an error */
829 if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1)
830 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
831 ".%s nested too deeply", c->name);
832 cstate_stack[++cstate_stack_ptr] = cstate;
833 cstate = next_cstate[cstate][macro_found? c->action1 : c->action2];
836 /* For any of the others, stack underflow is an error. The next state
837 comes either from the stack (.endif) or from the table. */
841 if (cstate_stack_ptr < 0)
842 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
843 ".%s without matching .ifdef", c->name);
844 cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] :
845 next_cstate[cstate][macro_found? c->action1 : c->action2];
848 /* Having dealt with a directive, break the loop */
853 /* If we have handled a conditional directive, continue with the next
854 physical line. Otherwise, fall through. */
856 if (i < cond_list_size) continue;
859 /* If the conditional state is not 0 (actively using these lines), ignore
862 if (cstate != 0) continue; /* Conditional skip */
864 /* Handle .include lines - these are also physical lines. */
866 if (Ustrncmp(ss, ".include", 8) == 0 &&
868 (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18]))))
871 int include_if_exists = isspace(ss[8])? 0 : 10;
872 config_file_item *save;
875 ss += 9 + include_if_exists;
876 while (isspace(*ss)) ss++;
877 t = ss + Ustrlen(ss);
878 while (t > ss && isspace(t[-1])) t--;
879 if (*ss == '\"' && t[-1] == '\"')
887 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-"
888 "absolute path \"%s\"", ss);
890 if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue;
892 save = store_get(sizeof(config_file_item));
893 save->next = config_file_stack;
894 config_file_stack = save;
895 save->file = config_file;
896 save->filename = config_filename;
897 save->lineno = config_lineno;
899 config_file = Ufopen(ss, "rb");
900 if (config_file == NULL)
901 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included "
902 "configuration file %s", ss);
903 config_filename = string_copy(ss);
908 /* If this is the start of the logical line, remember where the non-blank
909 data starts. Otherwise shuffle down continuation lines to remove leading
913 startoffset = ss - big_buffer;
916 s = big_buffer + len;
919 memmove(s, ss, (newlen - len) - (ss - s) + 1);
924 /* Accept the new addition to the line. Remove trailing white space. */
927 while (len > 0 && isspace(big_buffer[len-1])) len--;
930 /* We are done if the line does not end in backslash and contains some data.
931 Empty logical lines are ignored. For continuations, remove the backslash and
932 go round the loop to read the continuation line. */
936 if (big_buffer[len-1] != '\\') break; /* End of logical line */
937 big_buffer[--len] = 0; /* Remove backslash */
939 } /* Loop for reading multiple physical lines */
941 /* We now have a logical line. Test for the end of a configuration section (or,
942 more accurately, for the start of the next section). Place the name of the next
943 section in next_section, and return NULL. If the name given is longer than
944 next_section, truncate it. It will be unrecognized later, because all the known
945 section names do fit. Leave space for pluralizing. */
947 s = big_buffer + startoffset; /* First non-space character */
948 if (strncmpic(s, US"begin ", 6) == 0)
951 while (isspace(*s)) s++;
952 if (big_buffer + len - s > sizeof(next_section) - 2)
953 s[sizeof(next_section) - 2] = 0;
954 Ustrcpy(next_section, s);
958 /* Return the first non-blank character. */
965 /*************************************************
967 *************************************************/
969 /* The yield is the pointer to the next uschar. Names longer than the
970 output space are silently truncated. This function is also used from acl.c when
974 name where to put the name
978 Returns: new input pointer
982 readconf_readname(uschar *name, int len, uschar *s)
985 while (isspace(*s)) s++;
988 while (isalnum(*s) || *s == '_')
990 if (p < len-1) name[p++] = *s;
995 while (isspace(*s)) s++;
1002 /*************************************************
1003 * Read a time value *
1004 *************************************************/
1006 /* This function is also called from outside, to read argument
1007 time values. The format of a time value is:
1009 [<n>w][<n>d][<n>h][<n>m][<n>s]
1011 as long as at least one is present. If a format error is encountered,
1012 return a negative value. The value must be terminated by the given
1017 terminator required terminating character
1018 return_msec if TRUE, allow fractional seconds and return milliseconds
1020 Returns: the time value, or -1 on syntax error
1021 value is seconds if return_msec is FALSE
1022 value is milliseconds if return_msec is TRUE
1026 readconf_readtime(uschar *s, int terminator, BOOL return_msec)
1034 if (!isdigit(*s)) return -1;
1035 (void)sscanf(CS s, "%d%n", &value, &count);
1040 case 'w': value *= 7;
1041 case 'd': value *= 24;
1042 case 'h': value *= 60;
1043 case 'm': value *= 60;
1048 if (!return_msec) return -1;
1049 (void)sscanf(CS s, "%lf%n", &fraction, &count);
1051 if (*s++ != 's') return -1;
1052 yield += (int)(fraction * 1000.0);
1058 if (return_msec) value *= 1000;
1060 if (*s == terminator) return yield;
1062 /* Control never reaches here. */
1067 /*************************************************
1068 * Read a fixed point value *
1069 *************************************************/
1071 /* The value is returned *1000
1075 terminator required terminator
1077 Returns: the value, or -1 on error
1081 readconf_readfixed(uschar *s, int terminator)
1085 if (!isdigit(*s)) return -1;
1086 (void)sscanf(CS s, "%d%n", &value, &count);
1088 yield = value * 1000;
1092 while (isdigit((*(++s))))
1094 yield += (*s - '0') * m;
1099 return (*s == terminator)? yield : (-1);
1104 /*************************************************
1105 * Find option in list *
1106 *************************************************/
1108 /* The lists are always in order, so binary chop can be used.
1111 name the option name to search for
1112 ol the first entry in the option list
1113 last one more than the offset of the last entry in the option list
1115 Returns: pointer to an option entry, or NULL if not found
1119 find_option(uschar *name, optionlist *ol, int last)
1122 while (last > first)
1124 int middle = (first + last)/2;
1125 int c = Ustrcmp(name, ol[middle].name);
1126 if (c == 0) return ol + middle;
1127 else if (c > 0) first = middle + 1;
1135 /*************************************************
1136 * Find a set flag in option list *
1137 *************************************************/
1139 /* Because some versions of Unix make no restrictions on the values of uids and
1140 gids (even negative ones), we cannot represent "unset" by a special value.
1141 There is therefore a separate boolean variable for each one indicating whether
1142 a value is set or not. This function returns a pointer to the boolean, given
1143 the original option name. It is a major disaster if the flag cannot be found.
1146 name the name of the uid or gid option
1147 oltop points to the start of the relevant option list
1148 last one more than the offset of the last item in the option list
1149 data_block NULL when reading main options => data values in the option
1150 list are absolute addresses; otherwise they are byte offsets
1151 in data_block (used for driver options)
1153 Returns: a pointer to the boolean flag.
1157 get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block)
1161 sprintf(CS name2, "*set_%.50s", name);
1162 ol = find_option(name2, oltop, last);
1163 if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE,
1164 "Exim internal error: missing set flag for %s", name);
1165 return (data_block == NULL)? (BOOL *)(ol->value) :
1166 (BOOL *)((uschar *)data_block + (long int)(ol->value));
1172 /*************************************************
1173 * Output extra characters message and die *
1174 *************************************************/
1176 /* Called when an option line has junk on the end. Sometimes this is because
1177 the sysadmin thinks comments are permitted.
1180 s points to the extra characters
1181 t1..t3 strings to insert in the log message
1183 Returns: doesn't return; dies
1187 extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3)
1189 uschar *comment = US"";
1190 if (*s == '#') comment = US" (# is comment only at line start)";
1191 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1192 "extra characters follow %s%s%s%s", t1, t2, t3, comment);
1197 /*************************************************
1198 * Read rewrite information *
1199 *************************************************/
1201 /* Each line of rewrite information contains:
1203 . A complete address in the form user@domain, possibly with
1204 leading * for each part; or alternatively, a regex.
1206 . A replacement string (which will be expanded).
1208 . An optional sequence of one-letter flags, indicating which
1209 headers etc. to apply this rule to.
1211 All this is decoded and placed into a control block. The OR of the flags is
1212 maintained in a common word.
1215 p points to the string that makes up the rule
1216 existflags points to the overall flag word
1217 isglobal TRUE if reading global rewrite rules
1219 Returns: the control block for the parsed rule.
1222 static rewrite_rule *
1223 readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal)
1225 rewrite_rule *next = store_get(sizeof(rewrite_rule));
1228 next->key = string_dequote(&p);
1230 while (isspace(*p)) p++;
1232 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1233 "missing rewrite replacement string");
1236 next->replacement = string_dequote(&p);
1238 while (*p != 0) switch (*p++)
1240 case ' ': case '\t': break;
1242 case 'q': next->flags |= rewrite_quit; break;
1243 case 'w': next->flags |= rewrite_whole; break;
1245 case 'h': next->flags |= rewrite_all_headers; break;
1246 case 's': next->flags |= rewrite_sender; break;
1247 case 'f': next->flags |= rewrite_from; break;
1248 case 't': next->flags |= rewrite_to; break;
1249 case 'c': next->flags |= rewrite_cc; break;
1250 case 'b': next->flags |= rewrite_bcc; break;
1251 case 'r': next->flags |= rewrite_replyto; break;
1253 case 'E': next->flags |= rewrite_all_envelope; break;
1254 case 'F': next->flags |= rewrite_envfrom; break;
1255 case 'T': next->flags |= rewrite_envto; break;
1257 case 'Q': next->flags |= rewrite_qualify; break;
1258 case 'R': next->flags |= rewrite_repeat; break;
1261 next->flags |= rewrite_smtp;
1262 if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0)
1263 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1264 "rewrite rule has the S flag but is not a regular expression");
1268 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1269 "unknown rewrite flag character '%c' "
1270 "(could be missing quotes round replacement item)", p[-1]);
1274 /* If no action flags are set, set all the "normal" rewrites. */
1276 if ((next->flags & (rewrite_all | rewrite_smtp)) == 0)
1277 next->flags |= isglobal? rewrite_all : rewrite_all_headers;
1279 /* Remember which exist, for optimization, and return the rule */
1281 *existflags |= next->flags;
1288 /*************************************************
1289 * Read global rewrite information *
1290 *************************************************/
1292 /* Each line is a single rewrite rule; it is parsed into a control block
1293 by readconf_one_rewrite(), and its flags are ORed into the global flag
1294 word rewrite_existflags. */
1297 readconf_rewrites(void)
1299 rewrite_rule **chain = &global_rewrite_rules;
1302 while ((p = get_config_line()) != NULL)
1304 rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE);
1306 chain = &(next->next);
1312 /*************************************************
1314 *************************************************/
1316 /* Strings are read into the normal store pool. As long we aren't too
1317 near the end of the current block, the string will just use what is necessary
1318 on the top of the stacking pool, because string_cat() uses the extension
1322 s the rest of the input line
1323 name the option name (for errors)
1325 Returns: pointer to the string
1329 read_string(uschar *s, uschar *name)
1334 if (*s != '\"') return string_copy(s);
1337 yield = string_dequote(&s);
1339 if (s == ss+1 || s[-1] != '\"')
1340 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1341 "missing quote at end of string value for %s", name);
1343 if (*s != 0) extra_chars_error(s, US"string value for ", name, US"");
1349 /*************************************************
1350 * Handle option line *
1351 *************************************************/
1353 /* This function is called from several places to process a line containing the
1354 setting of an option. The first argument is the line to be decoded; it has been
1355 checked not to be empty and not to start with '#'. Trailing newlines and white
1356 space have been removed. The second argument is a pointer to the list of
1357 variable names that are to be recognized, together with their types and
1358 locations, and the third argument gives the number of entries in the list.
1360 The fourth argument is a pointer to a data block. If it is NULL, then the data
1361 values in the options list are absolute addresses. Otherwise, they are byte
1362 offsets in the data block.
1364 String option data may continue onto several lines; this function reads further
1365 data from config_file if necessary.
1367 The yield of this function is normally zero. If a string continues onto
1368 multiple lines, then the data value is permitted to be followed by a comma
1369 or a semicolon (for use in drivers) and the yield is that character.
1372 buffer contains the configuration line to be handled
1373 oltop points to the start of the relevant option list
1374 last one more than the offset of the last item in the option list
1375 data_block NULL when reading main options => data values in the option
1376 list are absolute addresses; otherwise they are byte offsets
1377 in data_block when they have opt_public set; otherwise
1378 they are byte offsets in data_block->options_block.
1379 unknown_txt format string to use in panic message for unknown option;
1380 must contain %s for option name
1381 if given as NULL, don't panic on unknown option
1383 Returns: TRUE if an option was read successfully,
1384 FALSE false for an unknown option if unknown_txt == NULL,
1385 otherwise panic and die on an unknown option
1389 readconf_handle_option(uschar *buffer, optionlist *oltop, int last,
1390 void *data_block, uschar *unknown_txt)
1394 int n, count, type, value;
1398 BOOL boolvalue = TRUE;
1399 BOOL freesptr = TRUE;
1400 optionlist *ol, *ol2;
1404 uschar *inttype = US"";
1407 uschar *saved_condition, *strtemp;
1408 uschar **str_target;
1412 /* There may be leading spaces; thereafter, we expect an option name starting
1415 while (isspace(*s)) s++;
1417 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s);
1419 /* Read the name of the option, and skip any subsequent white space. If
1420 it turns out that what we read was "hide", set the flag indicating that
1421 this is a secure option, and loop to read the next word. */
1423 for (n = 0; n < 2; n++)
1425 while (isalnum(*s) || *s == '_')
1427 if (ptr < sizeof(name)-1) name[ptr++] = *s;
1431 while (isspace(*s)) s++;
1432 if (Ustrcmp(name, "hide") != 0) break;
1433 issecure = opt_secure;
1437 /* Deal with "no_" or "not_" here for booleans */
1439 if (Ustrncmp(name, "no_", 3) == 0)
1445 if (Ustrncmp(name, "not_", 4) == 0)
1451 /* Search the list for the given name. A non-existent name, or an option that
1452 is set twice, is a disaster. */
1454 ol = find_option(name + offset, oltop, last);
1458 if (unknown_txt == NULL) return FALSE;
1459 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name);
1462 if ((ol->type & opt_set) && !(ol->type & (opt_rep_con | opt_rep_str)))
1463 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1464 "\"%s\" option set for the second time", name);
1466 ol->type |= opt_set | issecure;
1467 type = ol->type & opt_mask;
1469 /* Types with data values must be followed by '='; the "no[t]_" prefix
1470 applies only to boolean values. */
1472 if (type < opt_bool || type > opt_bool_last)
1475 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1476 "negation prefix applied to a non-boolean option");
1478 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1479 "unexpected end of line (data missing) after %s", name);
1481 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name);
1484 /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and
1485 true/false/yes/no, or, in the case of opt_expanded_bool, a general string that
1486 ultimately expands to one of those values. */
1488 else if (*s != 0 && (offset != 0 || *s != '='))
1489 extra_chars_error(s, US"boolean option ", name, US"");
1491 /* Skip white space after = */
1493 if (*s == '=') while (isspace((*(++s))));
1495 /* If there is a data block and the opt_public flag is not set, change
1496 the data block pointer to the private options block. */
1498 if (data_block != NULL && (ol->type & opt_public) == 0)
1499 data_block = (void *)(((driver_instance *)data_block)->options_block);
1501 /* Now get the data according to the type. */
1505 /* If a string value is not enclosed in quotes, it consists of
1506 the rest of the current line, verbatim. Otherwise, string escapes
1509 A transport is specified as a string, which is then looked up in the
1510 list of transports. A search type is specified as one of a number of
1513 A set or rewrite rules for a driver is specified as a string, which is
1514 then parsed into a suitable chain of control blocks.
1516 Uids and gids are specified as strings which are then looked up in the
1517 passwd file. Lists of uids and gids are similarly specified as colon-
1518 separated strings. */
1523 case opt_expand_uid:
1524 case opt_expand_gid:
1529 reset_point = sptr = read_string(s, name);
1531 /* Having read a string, we now have several different ways of using it,
1532 depending on the data type, so do another switch. If keeping the actual
1533 string is not required (because it is interpreted), freesptr is set TRUE,
1534 and at the end we reset the pool. */
1538 /* If this was a string, set the variable to point to the new string,
1539 and set the flag so its store isn't reclaimed. If it was a list of rewrite
1540 rules, we still keep the string (for printing), and parse the rules into a
1541 control block and flags word. */
1544 if (data_block == NULL)
1545 str_target = (uschar **)(ol->value);
1547 str_target = (uschar **)((uschar *)data_block + (long int)(ol->value));
1548 if (ol->type & opt_rep_con)
1550 /* We already have a condition, we're conducting a crude hack to let
1551 multiple condition rules be chained together, despite storing them in
1553 saved_condition = *str_target;
1554 strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}",
1555 saved_condition, sptr);
1556 *str_target = string_copy_malloc(strtemp);
1557 /* TODO(pdp): there is a memory leak here and just below
1558 when we set 3 or more conditions; I still don't
1559 understand the store mechanism enough to know
1560 what's the safe way to free content from an earlier store.
1561 AFAICT, stores stack, so freeing an early stored item also stores
1562 all data alloc'd after it. If we knew conditions were adjacent,
1563 we could survive that, but we don't. So I *think* we need to take
1564 another bit from opt_type to indicate "malloced"; this seems like
1565 quite a hack, especially for this one case. It also means that
1566 we can't ever reclaim the store from the *first* condition.
1568 Because we only do this once, near process start-up, I'm prepared to
1569 let this slide for the time being, even though it rankles. */
1571 else if (ol->type & opt_rep_str)
1573 uschar sep = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':';
1576 /* Strip trailing whitespace and seperators */
1577 for (cp = sptr + Ustrlen(sptr) - 1;
1578 cp >= sptr && (*cp == '\n' || *cp == '\t' || *cp == ' ' || *cp == sep);
1582 *str_target = string_copy_malloc(
1583 *str_target ? string_sprintf("%s%c%s", *str_target, sep, sptr)
1594 if (data_block == NULL)
1595 *((uschar **)(ol->value)) = sptr;
1597 *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr;
1599 if (type == opt_rewrite)
1604 rewrite_rule **chain;
1607 sprintf(CS name2, "*%.50s_rules", name);
1608 ol2 = find_option(name2, oltop, last);
1609 sprintf(CS name2, "*%.50s_flags", name);
1610 ol3 = find_option(name2, oltop, last);
1612 if (ol2 == NULL || ol3 == NULL)
1613 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1614 "rewrite rules not available for driver");
1616 if (data_block == NULL)
1618 chain = (rewrite_rule **)(ol2->value);
1619 flagptr = (int *)(ol3->value);
1623 chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value));
1624 flagptr = (int *)((uschar *)data_block + (long int)(ol3->value));
1627 while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE))
1630 rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE);
1632 chain = &(next->next);
1635 if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0)
1636 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a "
1637 "non-header rewrite - not allowed at transport time -");
1641 /* If it was an expanded uid, see if there is any expansion to be
1642 done by checking for the presence of a $ character. If there is, save it
1643 in the corresponding *expand_user option field. Otherwise, fall through
1644 to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds
1647 case opt_expand_uid:
1648 sprintf(CS name2, "*expand_%.50s", name);
1649 ol2 = find_option(name2, oltop, last);
1652 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1654 if (data_block == NULL)
1655 *((uschar **)(ol2->value)) = ss;
1657 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1661 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1667 /* Look up a fixed uid, and also make use of the corresponding gid
1668 if a passwd entry is returned and the gid has not been set. */
1671 if (!route_finduser(sptr, &pw, &uid))
1672 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr);
1673 if (data_block == NULL)
1674 *((uid_t *)(ol->value)) = uid;
1676 *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid;
1678 /* Set the flag indicating a fixed value is set */
1680 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1682 /* Handle matching gid if we have a passwd entry: done by finding the
1683 same name with terminating "user" changed to "group"; if not found,
1684 ignore. Also ignore if the value is already set. */
1686 if (pw == NULL) break;
1687 Ustrcpy(name+Ustrlen(name)-4, "group");
1688 ol2 = find_option(name, oltop, last);
1689 if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid ||
1690 (ol2->type & opt_mask) == opt_expand_gid))
1692 BOOL *set_flag = get_set_flag(name, oltop, last, data_block);
1695 if (data_block == NULL)
1696 *((gid_t *)(ol2->value)) = pw->pw_gid;
1698 *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid;
1704 /* If it was an expanded gid, see if there is any expansion to be
1705 done by checking for the presence of a $ character. If there is, save it
1706 in the corresponding *expand_user option field. Otherwise, fall through
1707 to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds
1710 case opt_expand_gid:
1711 sprintf(CS name2, "*expand_%.50s", name);
1712 ol2 = find_option(name2, oltop, last);
1715 uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL;
1717 if (data_block == NULL)
1718 *((uschar **)(ol2->value)) = ss;
1720 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss;
1724 *(get_set_flag(name, oltop, last, data_block)) = FALSE;
1730 /* Handle freestanding gid */
1733 if (!route_findgroup(sptr, &gid))
1734 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr);
1735 if (data_block == NULL)
1736 *((gid_t *)(ol->value)) = gid;
1738 *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid;
1739 *(get_set_flag(name, oltop, last, data_block)) = TRUE;
1742 /* If it was a uid list, look up each individual entry, and build
1743 a vector of uids, with a count in the first element. Put the vector
1744 in malloc store so we can free the string. (We are reading into
1745 permanent store already.) */
1753 uschar *op = expand_string (sptr);
1756 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1757 name, expand_string_message);
1760 if (*p != 0) count++;
1761 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1762 list = store_malloc(count*sizeof(uid_t));
1763 list[ptr++] = (uid_t)(count - 1);
1765 if (data_block == NULL)
1766 *((uid_t **)(ol->value)) = list;
1768 *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1774 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1775 if (!route_finduser(big_buffer, NULL, &uid))
1776 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found",
1783 /* If it was a gid list, look up each individual entry, and build
1784 a vector of gids, with a count in the first element. Put the vector
1785 in malloc store so we can free the string. (We are reading into permanent
1794 uschar *op = expand_string (sptr);
1797 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s",
1798 name, expand_string_message);
1801 if (*p != 0) count++;
1802 while (*p != 0) if (*p++ == ':' && *p != 0) count++;
1803 list = store_malloc(count*sizeof(gid_t));
1804 list[ptr++] = (gid_t)(count - 1);
1806 if (data_block == NULL)
1807 *((gid_t **)(ol->value)) = list;
1809 *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list;
1815 (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE);
1816 if (!route_findgroup(big_buffer, &gid))
1817 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found",
1825 /* Release store if the value of the string doesn't need to be kept. */
1827 if (freesptr) store_reset(reset_point);
1830 /* Expanded boolean: if no characters follow, or if there are no dollar
1831 characters, this is a fixed-valued boolean, and we fall through. Otherwise,
1832 save the string for later expansion in the alternate place. */
1834 case opt_expand_bool:
1835 if (*s != 0 && Ustrchr(s, '$') != 0)
1837 sprintf(CS name2, "*expand_%.50s", name);
1838 ol2 = find_option(name2, oltop, last);
1841 reset_point = sptr = read_string(s, name);
1842 if (data_block == NULL)
1843 *((uschar **)(ol2->value)) = sptr;
1845 *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr;
1852 /* Boolean: if no characters follow, the value is boolvalue. Otherwise
1853 look for yes/not/true/false. Some booleans are stored in a single bit in
1854 a single int. There's a special fudge for verify settings; without a suffix
1855 they set both xx_sender and xx_recipient. The table points to the sender
1856 value; search subsequently for the recipient. There's another special case:
1857 opt_bool_set also notes when a boolean has been set. */
1861 case opt_bool_verify:
1865 s = readconf_readname(name2, 64, s);
1866 if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0)
1868 else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0)
1870 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1871 "\"%s\" is not a valid value for the \"%s\" option", name2, name);
1872 if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2),
1873 US"for boolean option ", name);
1876 /* Handle single-bit type. */
1878 if (type == opt_bit)
1880 int bit = 1 << ((ol->type >> 16) & 31);
1881 int *ptr = (data_block == NULL)?
1882 (int *)(ol->value) :
1883 (int *)((uschar *)data_block + (long int)ol->value);
1884 if (boolvalue) *ptr |= bit; else *ptr &= ~bit;
1888 /* Handle full BOOL types */
1890 if (data_block == NULL)
1891 *((BOOL *)(ol->value)) = boolvalue;
1893 *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue;
1897 if (type == opt_bool_verify)
1899 sprintf(CS name2, "%.50s_recipient", name + offset);
1900 ol2 = find_option(name2, oltop, last);
1903 if (data_block == NULL)
1904 *((BOOL *)(ol2->value)) = boolvalue;
1906 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue;
1910 /* Note that opt_bool_set type is set, if there is somewhere to do so */
1912 else if (type == opt_bool_set)
1914 sprintf(CS name2, "*set_%.50s", name + offset);
1915 ol2 = find_option(name2, oltop, last);
1918 if (data_block == NULL)
1919 *((BOOL *)(ol2->value)) = TRUE;
1921 *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE;
1930 inttype = US"octal ";
1932 /* Integer: a simple(ish) case; allow octal and hex formats, and
1933 suffixes K and M. The different types affect output, not input. */
1942 lvalue = strtol(CS s, CSS &endptr, intbase);
1945 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1948 if (errno != ERANGE)
1950 if (tolower(*endptr) == 'k')
1952 if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE;
1953 else lvalue *= 1024;
1956 else if (tolower(*endptr) == 'm')
1958 if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024))
1960 else lvalue *= 1024*1024;
1965 if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN)
1966 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
1967 "absolute value of integer \"%s\" is too large (overflow)", s);
1969 while (isspace(*endptr)) endptr++;
1971 extra_chars_error(endptr, inttype, US"integer value for ", name);
1973 value = (int)lvalue;
1976 if (data_block == NULL)
1977 *((int *)(ol->value)) = value;
1979 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
1982 /* Integer held in K: again, allow octal and hex formats, and suffixes K and
1989 value = strtol(CS s, CSS &endptr, intbase);
1992 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s",
1995 if (errno != ERANGE)
1997 if (tolower(*endptr) == 'm')
1999 if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE;
2003 else if (tolower(*endptr) == 'k')
2009 value = (value + 512)/1024;
2013 if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2014 "absolute value of integer \"%s\" is too large (overflow)", s);
2016 while (isspace(*endptr)) endptr++;
2018 extra_chars_error(endptr, inttype, US"integer value for ", name);
2021 if (data_block == NULL)
2022 *((int *)(ol->value)) = value;
2024 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2027 /* Fixed-point number: held to 3 decimal places. */
2030 if (sscanf(CS s, "%d%n", &value, &count) != 1)
2031 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2032 "fixed-point number expected for %s", name);
2034 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2035 "integer \"%s\" is too large (overflow)", s);
2039 if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2040 "integer \"%s\" is too large (overflow)", s);
2042 if (s[count] == '.')
2045 while (isdigit(s[++count]))
2047 value += (s[count] - '0') * d;
2052 while (isspace(s[count])) count++;
2055 extra_chars_error(s+count, US"fixed-point value for ", name, US"");
2057 if (data_block == NULL)
2058 *((int *)(ol->value)) = value;
2060 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2063 /* There's a special routine to read time values. */
2066 value = readconf_readtime(s, 0, FALSE);
2068 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2070 if (data_block == NULL)
2071 *((int *)(ol->value)) = value;
2073 *((int *)((uschar *)data_block + (long int)(ol->value))) = value;
2076 /* A time list is a list of colon-separated times, with the first
2077 element holding the size of the list and the second the number of
2083 int *list = (data_block == NULL)?
2084 (int *)(ol->value) :
2085 (int *)((uschar *)data_block + (long int)(ol->value));
2087 if (*s != 0) for (count = 1; count <= list[0] - 2; count++)
2090 uschar *snext = Ustrchr(s, ':');
2094 while (ss > s && isspace(ss[-1])) ss--;
2097 value = readconf_readtime(s, terminator, FALSE);
2099 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s",
2101 if (count > 1 && value <= list[count])
2102 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2103 "time value out of order for %s", name);
2104 list[count+1] = value;
2105 if (snext == NULL) break;
2107 while (isspace(*s)) s++;
2110 if (count > list[0] - 2)
2111 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s",
2113 if (count > 0 && list[2] == 0) count = 0;
2125 /*************************************************
2126 * Print a time value *
2127 *************************************************/
2130 Argument: a time value in seconds
2131 Returns: pointer to a fixed buffer containing the time as a string,
2132 in readconf_readtime() format
2136 readconf_printtime(int t)
2139 uschar *p = time_buffer;
2156 if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; }
2157 if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; }
2158 if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; }
2159 if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; }
2160 if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s);
2167 /*************************************************
2168 * Print an individual option value *
2169 *************************************************/
2171 /* This is used by the -bP option, so prints to the standard output.
2172 The entire options list is passed in as an argument, because some options come
2173 in pairs - typically uid/gid settings, which can either be explicit numerical
2174 values, or strings to be expanded later. If the numerical value is unset,
2175 search for "*expand_<name>" to see if there is a string equivalent.
2178 ol option entry, or NULL for an unknown option
2180 options_block NULL for main configuration options; otherwise points to
2181 a driver block; if the option doesn't have opt_public
2182 set, then options_block->options_block is where the item
2184 oltop points to the option list in which ol exists
2185 last one more than the offset of the last entry in optop
2186 no_labels do not show "foo = " at the start.
2192 print_ol(optionlist *ol, uschar *name, void *options_block,
2193 optionlist *oltop, int last, BOOL no_labels)
2206 printf("%s is not a known option\n", name);
2210 /* Non-admin callers cannot see options that have been flagged secure by the
2213 if (!admin_user && (ol->type & opt_secure) != 0)
2215 const char * const hidden = "<value not displayable>";
2217 printf("%s\n", hidden);
2219 printf("%s = %s\n", name, hidden);
2223 /* Else show the value of the option */
2226 if (options_block != NULL)
2228 if ((ol->type & opt_public) == 0)
2229 options_block = (void *)(((driver_instance *)options_block)->options_block);
2230 value = (void *)((uschar *)options_block + (long int)value);
2233 switch(ol->type & opt_mask)
2236 case opt_rewrite: /* Show the text value */
2237 s = *((uschar **)value);
2238 if (!no_labels) printf("%s = ", name);
2239 printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE));
2243 if (!no_labels) printf("%s = ", name);
2244 printf("%d\n", *((int *)value));
2249 int x = *((int *)value);
2250 if (x != 0 && (x & 1023) == 0)
2254 if ((x & 1023) == 0)
2259 if (!no_labels) printf("%s = ", name);
2260 printf("%d%c\n", x, c);
2264 if (!no_labels) printf("%s = ", name);
2272 int x = *((int *)value);
2273 if (!no_labels) printf("%s = ", name);
2274 if (x == 0) printf("0\n");
2275 else if ((x & 1023) == 0) printf("%dM\n", x >> 10);
2276 else printf("%dK\n", x);
2281 if (!no_labels) printf("%s = ", name);
2282 printf("%#o\n", *((int *)value));
2285 /* Can be negative only when "unset", in which case integer */
2289 int x = *((int *)value);
2292 if (x < 0) printf("%s =\n", name); else
2294 if (!no_labels) printf("%s = ", name);
2295 printf("%d.", x/1000);
2308 /* If the numerical value is unset, try for the string value */
2310 case opt_expand_uid:
2311 if (! *get_set_flag(name, oltop, last, options_block))
2313 sprintf(CS name2, "*expand_%.50s", name);
2314 ol2 = find_option(name2, oltop, last);
2317 void *value2 = ol2->value;
2318 if (options_block != NULL)
2319 value2 = (void *)((uschar *)options_block + (long int)value2);
2320 s = *((uschar **)value2);
2321 if (!no_labels) printf("%s = ", name);
2322 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2327 /* Else fall through */
2330 if (!no_labels) printf("%s = ", name);
2331 if (! *get_set_flag(name, oltop, last, options_block))
2335 pw = getpwuid(*((uid_t *)value));
2337 printf("%ld\n", (long int)(*((uid_t *)value)));
2338 else printf("%s\n", pw->pw_name);
2342 /* If the numerical value is unset, try for the string value */
2344 case opt_expand_gid:
2345 if (! *get_set_flag(name, oltop, last, options_block))
2347 sprintf(CS name2, "*expand_%.50s", name);
2348 ol2 = find_option(name2, oltop, last);
2349 if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr)
2351 void *value2 = ol2->value;
2352 if (options_block != NULL)
2353 value2 = (void *)((uschar *)options_block + (long int)value2);
2354 s = *((uschar **)value2);
2355 if (!no_labels) printf("%s = ", name);
2356 printf("%s\n", (s == NULL)? US"" : string_printing(s));
2361 /* Else fall through */
2364 if (!no_labels) printf("%s = ", name);
2365 if (! *get_set_flag(name, oltop, last, options_block))
2369 gr = getgrgid(*((int *)value));
2371 printf("%ld\n", (long int)(*((int *)value)));
2372 else printf("%s\n", gr->gr_name);
2377 uidlist = *((uid_t **)value);
2378 if (!no_labels) printf("%s =", name);
2379 if (uidlist != NULL)
2383 if (no_labels) sep = '\0';
2384 for (i = 1; i <= (int)(uidlist[0]); i++)
2386 uschar *name = NULL;
2387 pw = getpwuid(uidlist[i]);
2388 if (pw != NULL) name = US pw->pw_name;
2389 if (sep != '\0') printf("%c", sep);
2390 if (name != NULL) printf("%s", name);
2391 else printf("%ld", (long int)(uidlist[i]));
2399 gidlist = *((gid_t **)value);
2400 if (!no_labels) printf("%s =", name);
2401 if (gidlist != NULL)
2405 if (no_labels) sep = '\0';
2406 for (i = 1; i <= (int)(gidlist[0]); i++)
2408 uschar *name = NULL;
2409 gr = getgrgid(gidlist[i]);
2410 if (gr != NULL) name = US gr->gr_name;
2411 if (sep != '\0') printf("%c", sep);
2412 if (name != NULL) printf("%s", name);
2413 else printf("%ld", (long int)(gidlist[i]));
2421 if (!no_labels) printf("%s = ", name);
2422 printf("%s\n", readconf_printtime(*((int *)value)));
2428 int *list = (int *)value;
2429 if (!no_labels) printf("%s = ", name);
2430 for (i = 0; i < list[1]; i++)
2431 printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2]));
2437 printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))?
2441 case opt_expand_bool:
2442 sprintf(CS name2, "*expand_%.50s", name);
2443 ol2 = find_option(name2, oltop, last);
2444 if (ol2 != NULL && ol2->value != NULL)
2446 void *value2 = ol2->value;
2447 if (options_block != NULL)
2448 value2 = (void *)((uschar *)options_block + (long int)value2);
2449 s = *((uschar **)value2);
2452 if (!no_labels) printf("%s = ", name);
2453 printf("%s\n", string_printing(s));
2456 /* s == NULL => string not set; fall through */
2462 case opt_bool_verify:
2464 printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name);
2471 /*************************************************
2472 * Print value from main configuration *
2473 *************************************************/
2475 /* This function, called as a result of encountering the -bP option,
2476 causes the value of any main configuration variable to be output if the
2477 second argument is NULL. There are some special values:
2479 all print all main configuration options
2480 configure_file print the name of the configuration file
2481 routers print the routers' configurations
2482 transports print the transports' configuration
2483 authenticators print the authenticators' configuration
2484 macros print the macros' configuration
2485 router_list print a list of router names
2486 transport_list print a list of transport names
2487 authenticator_list print a list of authentication mechanism names
2488 macro_list print a list of macro names
2489 +name print a named list item
2490 local_scan print the local_scan options
2491 environment print the used execution environment
2493 If the second argument is not NULL, it must be one of "router", "transport",
2494 "authenticator" or "macro" in which case the first argument identifies the
2495 driver whose options are to be printed.
2498 name option name if type == NULL; else driver name
2499 type NULL or driver type name, as described above
2500 no_labels avoid the "foo = " at the start of an item
2506 readconf_print(uschar *name, uschar *type, BOOL no_labels)
2508 BOOL names_only = FALSE;
2510 optionlist *ol2 = NULL;
2511 driver_instance *d = NULL;
2522 static uschar *types[] = { US"address", US"domain", US"host",
2524 static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor,
2525 &hostlist_anchor, &localpartlist_anchor };
2527 for (i = 0; i < 4; i++)
2529 t = tree_search(*(anchors[i]), name+1);
2534 printf("%s\n", ((namedlist_block *)(t->data.ptr))->string);
2536 printf("%slist %s = %s\n", types[i], name+1,
2537 ((namedlist_block *)(t->data.ptr))->string);
2542 printf("no address, domain, host, or local part list called \"%s\" "
2543 "exists\n", name+1);
2548 if (Ustrcmp(name, "configure_file") == 0)
2550 printf("%s\n", CS config_main_filename);
2554 if (Ustrcmp(name, "all") == 0)
2556 for (ol = optionlist_config;
2557 ol < optionlist_config + optionlist_config_size; ol++)
2559 if ((ol->type & opt_hidden) == 0)
2560 print_ol(ol, US ol->name, NULL,
2561 optionlist_config, optionlist_config_size,
2567 if (Ustrcmp(name, "local_scan") == 0)
2569 #ifndef LOCAL_SCAN_HAS_OPTIONS
2570 printf("local_scan() options are not supported\n");
2572 for (ol = local_scan_options;
2573 ol < local_scan_options + local_scan_options_count; ol++)
2575 print_ol(ol, US ol->name, NULL, local_scan_options,
2576 local_scan_options_count, no_labels);
2582 if (Ustrcmp(name, "routers") == 0)
2587 else if (Ustrcmp(name, "transports") == 0)
2589 type = US"transport";
2593 else if (Ustrcmp(name, "authenticators") == 0)
2595 type = US"authenticator";
2599 else if (Ustrcmp(name, "macros") == 0)
2605 else if (Ustrcmp(name, "router_list") == 0)
2612 else if (Ustrcmp(name, "transport_list") == 0)
2614 type = US"transport";
2619 else if (Ustrcmp(name, "authenticator_list") == 0)
2621 type = US"authenticator";
2626 else if (Ustrcmp(name, "macro_list") == 0)
2633 else if (Ustrcmp(name, "environment") == 0)
2639 for (p = USS environ; *p; p++) ;
2640 n = p - USS environ;
2641 qsort(environ, p - USS environ, sizeof(*p), (__compar_fn_t) string_compare_by_pointer);
2643 for (p = USS environ; *p; p++)
2645 if (no_labels) *(Ustrchr(*p, '=')) = '\0';
2654 print_ol(find_option(name, optionlist_config, optionlist_config_size),
2655 name, NULL, optionlist_config, optionlist_config_size, no_labels);
2660 /* Handle the options for a router or transport. Skip options that are flagged
2661 as hidden. Some of these are options with names starting with '*', used for
2662 internal alternative representations of other options (which the printing
2663 function will sort out). Others are synonyms kept for backward compatibility.
2666 if (Ustrcmp(type, "router") == 0)
2668 d = (driver_instance *)routers;
2669 ol2 = optionlist_routers;
2670 size = optionlist_routers_size;
2672 else if (Ustrcmp(type, "transport") == 0)
2674 d = (driver_instance *)transports;
2675 ol2 = optionlist_transports;
2676 size = optionlist_transports_size;
2678 else if (Ustrcmp(type, "authenticator") == 0)
2680 d = (driver_instance *)auths;
2681 ol2 = optionlist_auths;
2682 size = optionlist_auths_size;
2685 else if (Ustrcmp(type, "macro") == 0)
2687 /* People store passwords in macros and they were previously not available
2688 for printing. So we have an admin_users restriction. */
2691 fprintf(stderr, "exim: permission denied\n");
2694 for (m = macros; m != NULL; m = m->next)
2696 if (name == NULL || Ustrcmp(name, m->name) == 0)
2699 printf("%s\n", CS m->name);
2701 printf("%s=%s\n", CS m->name, CS m->replacement);
2707 printf("%s %s not found\n", type, name);
2713 for (; d != NULL; d = d->next) printf("%s\n", CS d->name);
2717 /* Either search for a given driver, or print all of them */
2719 for (; d != NULL; d = d->next)
2722 printf("\n%s %s:\n", d->name, type);
2723 else if (Ustrcmp(d->name, name) != 0) continue;
2725 for (ol = ol2; ol < ol2 + size; ol++)
2727 if ((ol->type & opt_hidden) == 0)
2728 print_ol(ol, US ol->name, d, ol2, size, no_labels);
2731 for (ol = d->info->options;
2732 ol < d->info->options + *(d->info->options_count); ol++)
2734 if ((ol->type & opt_hidden) == 0)
2735 print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels);
2737 if (name != NULL) return;
2739 if (name != NULL) printf("%s %s not found\n", type, name);
2744 /*************************************************
2745 * Read a named list item *
2746 *************************************************/
2748 /* This function reads a name and a list (i.e. string). The name is used to
2749 save the list in a tree, sorted by its name. Each entry also has a number,
2750 which can be used for caching tests, but if the string contains any expansion
2751 items other than $key, the number is set negative to inhibit caching. This
2752 mechanism is used for domain, host, and address lists that are referenced by
2756 anchorp points to the tree anchor
2757 numberp points to the current number for this tree
2758 max the maximum number permitted
2759 s the text of the option line, starting immediately after the name
2761 tname the name of the list type, for messages
2767 read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s,
2770 BOOL forcecache = FALSE;
2773 namedlist_block *nb = store_get(sizeof(namedlist_block));
2775 if (Ustrncmp(s, "_cache", 6) == 0)
2782 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line");
2784 if (*numberp >= max)
2785 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n",
2788 while (isspace(*s)) s++;
2790 while (isalnum(*s) || *s == '_') s++;
2791 t = store_get(sizeof(tree_node) + s-ss);
2792 Ustrncpy(t->name, ss, s-ss);
2794 while (isspace(*s)) s++;
2796 if (!tree_insertnode(anchorp, t))
2797 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2798 "duplicate name \"%s\" for a named %s", t->name, tname);
2801 nb->number = *numberp;
2804 if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
2805 "missing '=' after \"%s\"", t->name);
2806 while (isspace(*s)) s++;
2807 nb->string = read_string(s, t->name);
2808 nb->cache_data = NULL;
2810 /* Check the string for any expansions; if any are found, mark this list
2811 uncacheable unless the user has explicited forced caching. */
2813 if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1;
2819 /*************************************************
2820 * Unpick data for a rate limit *
2821 *************************************************/
2823 /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four
2827 s string, in the form t,b,f,l
2828 where t is the threshold (integer)
2829 b is the initial delay (time)
2830 f is the multiplicative factor (fixed point)
2831 k is the maximum time (time)
2832 threshold where to store threshold
2833 base where to store base in milliseconds
2834 factor where to store factor in milliseconds
2835 limit where to store limit
2837 Returns: nothing (panics on error)
2841 unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor,
2844 uschar bstring[16], lstring[16];
2846 if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring,
2847 factor, lstring) == 4)
2849 *base = readconf_readtime(bstring, 0, TRUE);
2850 *limit = readconf_readtime(lstring, 0, TRUE);
2851 if (*base >= 0 && *limit >= 0) return;
2853 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s);
2859 /*************************************************
2860 * Drop privs for checking TLS config *
2861 *************************************************/
2863 /* We want to validate TLS options during readconf, but do not want to be
2864 root when we call into the TLS library, in case of library linkage errors
2865 which cause segfaults; before this check, those were always done as the Exim
2866 runtime user and it makes sense to continue with that.
2868 Assumes: tls_require_ciphers has been set, if it will be
2869 exim_user has been set, if it will be
2870 exim_group has been set, if it will be
2872 Returns: bool for "okay"; false will cause caller to immediately exit.
2877 tls_dropprivs_validate_require_cipher(void)
2879 const uschar *errmsg;
2882 void (*oldsignal)(int);
2884 oldsignal = signal(SIGCHLD, SIG_DFL);
2887 if ((pid = fork()) < 0)
2888 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check");
2892 /* in some modes, will have dropped privilege already */
2894 exim_setugid(exim_uid, exim_gid, FALSE,
2895 US"calling tls_validate_require_cipher");
2897 errmsg = tls_validate_require_cipher();
2900 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
2901 "tls_require_ciphers invalid: %s", errmsg);
2908 rc = waitpid(pid, &status, 0);
2909 } while (rc < 0 && errno == EINTR);
2912 debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n",
2915 signal(SIGCHLD, oldsignal);
2919 #endif /* SUPPORT_TLS */
2924 /*************************************************
2925 * Read main configuration options *
2926 *************************************************/
2928 /* This function is the first to be called for configuration reading. It
2929 opens the configuration file and reads general configuration settings until
2930 it reaches the end of the configuration section. The file is then left open so
2931 that the remaining configuration data can subsequently be read if needed for
2934 The configuration file must be owned either by root or exim, and be writeable
2935 only by root or uid/gid exim. The values for Exim's uid and gid can be changed
2936 in the config file, so the test is done on the compiled in values. A slight
2937 anomaly, to be carefully documented.
2939 The name of the configuration file is taken from a list that is included in the
2940 binary of Exim. It can be altered from the command line, but if that is done,
2941 root privilege is immediately withdrawn unless the caller is root or exim.
2942 The first file on the list that exists is used.
2944 For use on multiple systems that share file systems, first look for a
2945 configuration file whose name has the current node name on the end. If that is
2946 not found, try the generic name. For really contorted configurations, that run
2947 multiple Exims with different uid settings, first try adding the effective uid
2948 before the node name. These complications are going to waste resources on most
2949 systems. Therefore they are available only when requested by compile-time
2956 struct stat statbuf;
2957 uschar *s, *filename;
2958 uschar *list = config_main_filelist;
2960 /* Loop through the possible file names */
2962 while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
2966 /* To avoid confusion: Exim changes to / at the very beginning and
2967 * and to $spool_directory later. */
2968 if (filename[0] != '/')
2970 fprintf(stderr, "-C %s: only absolute names are allowed\n", filename);
2974 /* Cut out all the fancy processing unless specifically wanted */
2976 #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
2977 uschar *suffix = filename + Ustrlen(filename);
2979 /* Try for the node-specific file if a node name exists */
2981 #ifdef CONFIGURE_FILE_USE_NODE
2983 if (uname(&uts) >= 0)
2985 #ifdef CONFIGURE_FILE_USE_EUID
2986 sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename);
2987 config_file = Ufopen(filename, "rb");
2988 if (config_file == NULL)
2989 #endif /* CONFIGURE_FILE_USE_EUID */
2991 sprintf(CS suffix, ".%.256s", uts.nodename);
2992 config_file = Ufopen(filename, "rb");
2995 #endif /* CONFIGURE_FILE_USE_NODE */
2997 /* Otherwise, try the generic name, possibly with the euid added */
2999 #ifdef CONFIGURE_FILE_USE_EUID
3000 if (config_file == NULL)
3002 sprintf(CS suffix, ".%ld", (long int)original_euid);
3003 config_file = Ufopen(filename, "rb");
3005 #endif /* CONFIGURE_FILE_USE_EUID */
3007 /* Finally, try the unadorned name */
3009 if (config_file == NULL)
3012 config_file = Ufopen(filename, "rb");
3014 #else /* if neither defined */
3016 /* This is the common case when the fancy processing is not included. */
3018 config_file = Ufopen(filename, "rb");
3021 /* If the file does not exist, continue to try any others. For any other
3022 error, break out (and die). */
3024 if (config_file != NULL || errno != ENOENT) break;
3027 /* On success, save the name for verification; config_filename is used when
3028 logging configuration errors (it changes for .included files) whereas
3029 config_main_filename is the name shown by -bP. Failure to open a configuration
3030 file is a serious disaster. */
3032 if (config_file != NULL)
3034 config_filename = config_main_filename = string_copy(filename);
3038 if (filename == NULL)
3039 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): "
3040 "%s", config_main_filelist);
3042 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno,
3043 "configuration file %s", filename));
3046 /* Check the status of the file we have opened, if we have retained root
3047 privileges and the file isn't /dev/null (which *should* be 0666). */
3049 if (trusted_config && Ustrcmp(filename, US"/dev/null"))
3051 if (fstat(fileno(config_file), &statbuf) != 0)
3052 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s",
3055 if ((statbuf.st_uid != root_uid /* owner not root */
3056 #ifdef CONFIGURE_OWNER
3057 && statbuf.st_uid != config_uid /* owner not the special one */
3060 (statbuf.st_gid != root_gid /* group not root & */
3061 #ifdef CONFIGURE_GROUP
3062 && statbuf.st_gid != config_gid /* group not the special one */
3064 && (statbuf.st_mode & 020) != 0) || /* group writeable */
3066 ((statbuf.st_mode & 2) != 0)) /* world writeable */
3068 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the "
3069 "wrong owner, group, or mode", big_buffer);
3072 /* Process the main configuration settings. They all begin with a lower case
3073 letter. If we see something starting with an upper case letter, it is taken as
3074 a macro definition. */
3076 while ((s = get_config_line()) != NULL)
3078 if (isupper(s[0])) read_macro_assignment(s);
3080 else if (Ustrncmp(s, "domainlist", 10) == 0)
3081 read_named_list(&domainlist_anchor, &domainlist_count,
3082 MAX_NAMED_LIST, s+10, US"domain list");
3084 else if (Ustrncmp(s, "hostlist", 8) == 0)
3085 read_named_list(&hostlist_anchor, &hostlist_count,
3086 MAX_NAMED_LIST, s+8, US"host list");
3088 else if (Ustrncmp(s, US"addresslist", 11) == 0)
3089 read_named_list(&addresslist_anchor, &addresslist_count,
3090 MAX_NAMED_LIST, s+11, US"address list");
3092 else if (Ustrncmp(s, US"localpartlist", 13) == 0)
3093 read_named_list(&localpartlist_anchor, &localpartlist_count,
3094 MAX_NAMED_LIST, s+13, US"local part list");
3097 (void) readconf_handle_option(s, optionlist_config, optionlist_config_size,
3098 NULL, US"main option \"%s\" unknown");
3102 /* If local_sender_retain is set, local_from_check must be unset. */
3104 if (local_sender_retain && local_from_check)
3105 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and "
3106 "local_sender_retain are set; this combination is not allowed");
3108 /* If the timezone string is empty, set it to NULL, implying no TZ variable
3111 if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL;
3113 /* The max retry interval must not be greater than 24 hours. */
3115 if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60;
3117 /* remote_max_parallel must be > 0 */
3119 if (remote_max_parallel <= 0) remote_max_parallel = 1;
3121 /* Save the configured setting of freeze_tell, so we can re-instate it at the
3122 start of a new SMTP message. */
3124 freeze_tell_config = freeze_tell;
3126 /* The primary host name may be required for expansion of spool_directory
3127 and log_file_path, so make sure it is set asap. It is obtained from uname(),
3128 but if that yields an unqualified value, make a FQDN by using gethostbyname to
3129 canonize it. Some people like upper case letters in their host names, so we
3130 don't force the case. */
3132 if (primary_hostname == NULL)
3136 if (uname(&uts) < 0)
3137 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name");
3138 hostname = US uts.nodename;
3140 if (Ustrchr(hostname, '.') == NULL)
3143 struct hostent *hostdata;
3146 if (!disable_ipv6 && (dns_ipv4_lookup == NULL ||
3147 match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN,
3157 #if HAVE_GETIPNODEBYNAME
3159 hostdata = getipnodebyname(CS hostname, af, 0, &error_num);
3161 hostdata = gethostbyname2(CS hostname, af);
3164 hostdata = gethostbyname(CS hostname);
3167 if (hostdata != NULL)
3169 hostname = US hostdata->h_name;
3173 if (af == AF_INET) break;
3178 primary_hostname = string_copy(hostname);
3181 /* Set up default value for smtp_active_hostname */
3183 smtp_active_hostname = primary_hostname;
3185 /* If spool_directory wasn't set in the build-time configuration, it must have
3186 got set above. Of course, writing to the log may not work if log_file_path is
3187 not set, but it will at least get to syslog or somewhere, with any luck. */
3189 if (*spool_directory == 0)
3190 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot "
3193 /* Expand the spool directory name; it may, for example, contain the primary
3194 host name. Same comment about failure. */
3196 s = expand_string(spool_directory);
3198 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory "
3199 "\"%s\": %s", spool_directory, expand_string_message);
3200 spool_directory = s;
3202 /* Expand log_file_path, which must contain "%s" in any component that isn't
3203 the null string or "syslog". It is also allowed to contain one instance of %D
3204 or %M. However, it must NOT contain % followed by anything else. */
3206 if (*log_file_path != 0)
3209 int sep = ':'; /* Fixed for log file path */
3210 s = expand_string(log_file_path);
3212 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path "
3213 "\"%s\": %s", log_file_path, expand_string_message);
3216 while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL)
3219 if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue;
3220 t = Ustrstr(sss, "%s");
3222 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not "
3223 "contain \"%%s\"", sss);
3225 t = Ustrchr(sss, '%');
3228 if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL)
3229 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains "
3230 "unexpected \"%%\" character", s);
3237 /* Interpret syslog_facility into an integer argument for 'ident' param to
3238 openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the
3241 if (syslog_facility_str != NULL)
3244 uschar *s = syslog_facility_str;
3246 if ((Ustrlen(syslog_facility_str) >= 4) &&
3247 (strncmpic(syslog_facility_str, US"log_", 4) == 0))
3250 for (i = 0; i < syslog_list_size; i++)
3252 if (strcmpic(s, syslog_list[i].name) == 0)
3254 syslog_facility = syslog_list[i].value;
3259 if (i >= syslog_list_size)
3261 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3262 "failed to interpret syslog_facility \"%s\"", syslog_facility_str);
3266 /* Expand pid_file_path */
3268 if (*pid_file_path != 0)
3270 s = expand_string(pid_file_path);
3272 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path "
3273 "\"%s\": %s", pid_file_path, expand_string_message);
3277 /* Set default value of process_log_path */
3279 if (process_log_path == NULL || *process_log_path =='\0')
3280 process_log_path = string_sprintf("%s/exim-process.info", spool_directory);
3282 /* Compile the regex for matching a UUCP-style "From_" line in an incoming
3285 regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE);
3287 /* Unpick the SMTP rate limiting options, if set */
3289 if (smtp_ratelimit_mail != NULL)
3291 unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold,
3292 &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit);
3295 if (smtp_ratelimit_rcpt != NULL)
3297 unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold,
3298 &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit);
3301 /* The qualify domains default to the primary host name */
3303 if (qualify_domain_sender == NULL)
3304 qualify_domain_sender = primary_hostname;
3305 if (qualify_domain_recipient == NULL)
3306 qualify_domain_recipient = qualify_domain_sender;
3308 /* Setting system_filter_user in the configuration sets the gid as well if a
3309 name is given, but a numerical value does not. */
3311 if (system_filter_uid_set && !system_filter_gid_set)
3313 struct passwd *pw = getpwuid(system_filter_uid);
3315 log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld",
3316 (long int)system_filter_uid);
3317 system_filter_gid = pw->pw_gid;
3318 system_filter_gid_set = TRUE;
3321 /* If the errors_reply_to field is set, check that it is syntactically valid
3322 and ensure it contains a domain. */
3324 if (errors_reply_to != NULL)
3327 int start, end, domain;
3328 uschar *recipient = parse_extract_address(errors_reply_to, &errmess,
3329 &start, &end, &domain, FALSE);
3331 if (recipient == NULL)
3332 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3333 "error in errors_reply_to (%s): %s", errors_reply_to, errmess);
3336 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3337 "errors_reply_to (%s) does not contain a domain", errors_reply_to);
3340 /* If smtp_accept_queue or smtp_accept_max_per_host is set, then
3341 smtp_accept_max must also be set. */
3343 if (smtp_accept_max == 0 &&
3344 (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL))
3345 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3346 "smtp_accept_max must be set if smtp_accept_queue or "
3347 "smtp_accept_max_per_host is set");
3349 /* Set up the host number if anything is specified. It is an expanded string
3350 so that it can be computed from the host name, for example. We do this last
3351 so as to ensure that everything else is set up before the expansion. */
3353 if (host_number_string != NULL)
3357 uschar *s = expand_string(host_number_string);
3359 log_write(0, LOG_MAIN|LOG_PANIC_DIE,
3360 "failed to expand localhost_number \"%s\": %s",
3361 host_number_string, expand_string_message);
3362 n = Ustrtol(s, &end, 0);
3363 while (isspace(*end)) end++;
3365 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3366 "localhost_number value is not a number: %s", s);
3367 if (n > LOCALHOST_MAX)
3368 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3369 "localhost_number is greater than the maximum allowed value (%d)",
3375 /* If tls_verify_hosts is set, tls_verify_certificates must also be set */
3377 if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) &&
3378 tls_verify_certificates == NULL)
3379 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3380 "tls_%sverify_hosts is set, but tls_verify_certificates is not set",
3381 (tls_verify_hosts != NULL)? "" : "try_");
3383 /* This also checks that the library linkage is working and we can call
3384 routines in it, so call even if tls_require_ciphers is unset */
3385 if (!tls_dropprivs_validate_require_cipher())
3388 /* Magic number: at time of writing, 1024 has been the long-standing value
3389 used by so many clients, and what Exim used to use always, that it makes
3390 sense to just min-clamp this max-clamp at that. */
3391 if (tls_dh_max_bits < 1024)
3392 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3393 "tls_dh_max_bits is too small, must be at least 1024 for interop");
3395 /* If openssl_options is set, validate it */
3396 if (openssl_options != NULL)
3399 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3400 "openssl_options is set but we're using GnuTLS");
3403 if (!(tls_openssl_options_parse(openssl_options, &dummy)))
3404 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3405 "openssl_options parse error: %s", openssl_options);
3409 if (gnutls_require_kx || gnutls_require_mac || gnutls_require_proto)
3410 log_write(0, LOG_MAIN, "WARNING: main options"
3411 " gnutls_require_kx, gnutls_require_mac and gnutls_require_protocols"
3413 #endif /*SUPPORT_TLS*/
3415 if ((!add_environment || *add_environment == '\0') && !keep_environment)
3416 log_write(0, LOG_MAIN,
3417 "WARNING: purging the environment.\n"
3418 " Suggested action: use keep_environment and add_environment.\n");
3423 /*************************************************
3424 * Initialize one driver *
3425 *************************************************/
3427 /* This is called once the driver's generic options, if any, have been read.
3428 We can now find the driver, set up defaults for the private options, and
3429 unset any "set" bits in the private options table (which might have been
3430 set by another incarnation of the same driver).
3433 d pointer to driver instance block, with generic
3435 drivers_available vector of available drivers
3436 size_of_info size of each block in drivers_available
3437 class class of driver, for error message
3439 Returns: pointer to the driver info block
3442 static driver_info *
3443 init_driver(driver_instance *d, driver_info *drivers_available,
3444 int size_of_info, uschar *class)
3448 for (dd = drivers_available; dd->driver_name[0] != 0;
3449 dd = (driver_info *)(((uschar *)dd) + size_of_info))
3451 if (Ustrcmp(d->driver_name, dd->driver_name) == 0)
3454 int len = dd->options_len;
3456 d->options_block = store_get(len);
3457 memcpy(d->options_block, dd->options_block, len);
3458 for (i = 0; i < *(dd->options_count); i++)
3459 dd->options[i].type &= ~opt_set;
3464 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3465 "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name);
3467 return NULL; /* never obeyed */
3473 /*************************************************
3474 * Initialize driver list *
3475 *************************************************/
3477 /* This function is called for routers, transports, and authentication
3478 mechanisms. It reads the data from the current point in the configuration file
3479 up to the end of the section, and sets up a chain of instance blocks according
3480 to the file's contents. The file will already have been opened by a call to
3481 readconf_main, and must be left open for subsequent reading of further data.
3483 Any errors cause a panic crash. Note that the blocks with names driver_info and
3484 driver_instance must map the first portions of all the _info and _instance
3485 blocks for this shared code to work.
3488 class "router", "transport", or "authenticator"
3489 anchor &routers, &transports, &auths
3490 drivers_available available drivers
3491 size_of_info size of each info block
3492 instance_default points to default data for an instance
3493 instance_size size of instance block
3494 driver_optionlist generic option list
3495 driver_optionlist_count count of generic option list
3501 readconf_driver_init(
3503 driver_instance **anchor,
3504 driver_info *drivers_available,
3506 void *instance_default,
3508 optionlist *driver_optionlist,
3509 int driver_optionlist_count)
3511 driver_instance **p = anchor;
3512 driver_instance *d = NULL;
3515 while ((buffer = get_config_line()) != NULL)
3520 /* Read the first name on the line and test for the start of a new driver. A
3521 macro definition indicates the end of the previous driver. If this isn't the
3522 start of a new driver, the line will be re-read. */
3524 s = readconf_readname(name, sizeof(name), buffer);
3526 /* Handle macro definition, first finishing off the initialization of the
3527 previous driver, if any. */
3529 if (isupper(*name) && *s == '=')
3533 if (d->driver_name == NULL)
3534 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3535 "no driver defined for %s \"%s\"", class, d->name);
3539 read_macro_assignment(buffer);
3543 /* If the line starts with a name terminated by a colon, we are at the
3544 start of the definition of a new driver. The rest of the line must be
3551 /* Finish off initializing the previous driver. */
3555 if (d->driver_name == NULL)
3556 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3557 "no driver defined for %s \"%s\"", class, d->name);
3561 /* Check that we haven't already got a driver of this name */
3563 for (d = *anchor; d != NULL; d = d->next)
3564 if (Ustrcmp(name, d->name) == 0)
3565 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3566 "there are two %ss called \"%s\"", class, name);
3568 /* Set up a new driver instance data block on the chain, with
3569 its default values installed. */
3571 d = store_get(instance_size);
3572 memcpy(d, instance_default, instance_size);
3575 d->name = string_copy(name);
3577 /* Clear out the "set" bits in the generic options */
3579 for (i = 0; i < driver_optionlist_count; i++)
3580 driver_optionlist[i].type &= ~opt_set;
3582 /* Check nothing more on this line, then do the next loop iteration. */
3584 while (isspace(*s)) s++;
3585 if (*s != 0) extra_chars_error(s, US"driver name ", name, US"");
3589 /* Not the start of a new driver. Give an error if we have not set up a
3590 current driver yet. */
3592 if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3593 "%s name missing", class);
3595 /* First look to see if this is a generic option; if it is "driver",
3596 initialize the driver. If is it not a generic option, we can look for a
3597 private option provided that the driver has been previously set up. */
3599 if (readconf_handle_option(buffer, driver_optionlist,
3600 driver_optionlist_count, d, NULL))
3602 if (d->info == NULL && d->driver_name != NULL)
3603 init_driver(d, drivers_available, size_of_info, class);
3606 /* Handle private options - pass the generic block because some may
3607 live therein. A flag with each option indicates if it is in the public
3610 else if (d->info != NULL)
3612 readconf_handle_option(buffer, d->info->options,
3613 *(d->info->options_count), d, US"option \"%s\" unknown");
3616 /* The option is not generic and the driver name has not yet been given. */
3618 else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown "
3619 "(\"driver\" must be specified before any private options)", name);
3622 /* Run the initialization function for the final driver. */
3626 if (d->driver_name == NULL)
3627 log_write(0, LOG_PANIC_DIE|LOG_CONFIG,
3628 "no driver defined for %s \"%s\"", class, d->name);
3635 /*************************************************
3636 * Check driver dependency *
3637 *************************************************/
3639 /* This function is passed a driver instance and a string. It checks whether
3640 any of the string options for the driver contains the given string as an
3644 d points to a driver instance block
3645 s the string to search for
3647 Returns: TRUE if a dependency is found
3651 readconf_depends(driver_instance *d, uschar *s)
3653 int count = *(d->info->options_count);
3657 for (ol = d->info->options; ol < d->info->options + count; ol++)
3659 void *options_block;
3661 int type = ol->type & opt_mask;
3662 if (type != opt_stringptr) continue;
3663 options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d;
3664 value = *(uschar **)((uschar *)options_block + (long int)(ol->value));
3665 if (value != NULL && (ss = Ustrstr(value, s)) != NULL)
3667 if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') ||
3668 isalnum(ss[Ustrlen(s)])) continue;
3669 DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n",
3670 d->name, ol->name, s);
3675 DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s);
3682 /*************************************************
3683 * Decode an error type for retries *
3684 *************************************************/
3686 /* This function is global because it is also called from the main
3687 program when testing retry information. It decodes strings such as "quota_7d"
3688 into numerical error codes.
3691 pp points to start of text
3692 p points past end of text
3693 basic_errno points to an int to receive the main error number
3694 more_errno points to an int to receive the secondary error data
3696 Returns: NULL if decoded correctly; else points to error text
3700 readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno)
3704 while (q < p && *q != '_') q++;
3707 if (len == 5 && strncmpic(pp, US"quota", len) == 0)
3709 *basic_errno = ERRNO_EXIMQUOTA;
3710 if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0)
3711 return US"bad time value";
3714 else if (len == 7 && strncmpic(pp, US"refused", len) == 0)
3716 *basic_errno = ECONNREFUSED;
3719 if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M';
3720 else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A';
3721 else return US"A or MX expected after \"refused\"";
3725 else if (len == 7 && strncmpic(pp, US"timeout", len) == 0)
3727 *basic_errno = ETIMEDOUT;
3731 int xlen = p - q - 1;
3734 static uschar *extras[] =
3735 { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" };
3736 static int values[] =
3737 { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' };
3739 for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++)
3741 if (strncmpic(x, extras[i], xlen) == 0)
3743 *more_errno = values[i];
3748 if (i >= sizeof(extras)/sizeof(uschar *))
3750 if (strncmpic(x, US"DNS", xlen) == 0)
3752 log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer "
3753 "available in retry rules (it has never worked) - treated as "
3756 else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\"";
3761 else if (strncmpic(pp, US"mail_4", 6) == 0 ||
3762 strncmpic(pp, US"rcpt_4", 6) == 0 ||
3763 strncmpic(pp, US"data_4", 6) == 0)
3766 int x = 255; /* means "any 4xx code" */
3767 if (p != pp + 8) bad = TRUE; else
3769 int a = pp[6], b = pp[7];
3773 if (isdigit(b)) x += b - '0';
3774 else if (b == 'x') x += 100;
3777 else if (a != 'x' || b != 'x') bad = TRUE;
3781 return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where "
3782 "x is literal and d is any digit", pp);
3784 *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX :
3785 (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX;
3786 *more_errno = x << 8;
3789 else if (len == 4 && strncmpic(pp, US"auth", len) == 0 &&
3790 strncmpic(q+1, US"failed", p-q-1) == 0)
3791 *basic_errno = ERRNO_AUTHFAIL;
3793 else if (strncmpic(pp, US"lost_connection", p - pp) == 0)
3794 *basic_errno = ERRNO_SMTPCLOSED;
3796 else if (strncmpic(pp, US"tls_required", p - pp) == 0)
3797 *basic_errno = ERRNO_TLSREQUIRED;
3799 else if (len != 1 || Ustrncmp(pp, "*", 1) != 0)
3800 return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp);
3808 /*************************************************
3809 * Read retry information *
3810 *************************************************/
3812 /* Each line of retry information contains:
3814 . A domain name pattern or an address pattern;
3816 . An error name, possibly with additional data, or *;
3818 . An optional sequence of retry items, each consisting of an identifying
3819 letter, a cutoff time, and optional parameters.
3821 All this is decoded and placed into a control block. */
3824 /* Subroutine to read an argument, preceded by a comma and terminated
3825 by comma, semicolon, whitespace, or newline. The types are: 0 = time value,
3826 1 = fixed point number (returned *1000).
3829 paddr pointer to pointer to current character; updated
3830 type 0 => read a time; 1 => read a fixed point number
3832 Returns: time in seconds or fixed point number * 1000
3836 retry_arg(uschar **paddr, int type)
3841 if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected");
3843 while (isspace(*p)) p++;
3845 while (isalnum(*p) || (type == 1 && *p == '.')) p++;
3847 if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';')
3848 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected");
3854 return readconf_readtime(pp, *p, FALSE);
3856 return readconf_readfixed(pp, *p);
3858 return 0; /* Keep picky compilers happy */
3861 /* The function proper */
3864 readconf_retries(void)
3866 retry_config **chain = &retries;
3870 while ((p = get_config_line()) != NULL)
3872 retry_rule **rchain;
3875 next = store_get(sizeof(retry_config));
3878 chain = &(next->next);
3879 next->basic_errno = next->more_errno = 0;
3880 next->senders = NULL;
3882 rchain = &(next->rules);
3884 next->pattern = string_dequote(&p);
3885 while (isspace(*p)) p++;
3887 while (mac_isgraph(*p)) p++;
3888 if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3889 "missing error type in retry rule");
3891 /* Test error names for things we understand. */
3893 if ((error = readconf_retry_error(pp, p, &(next->basic_errno),
3894 &(next->more_errno))) != NULL)
3895 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error);
3897 /* There may be an optional address list of senders to be used as another
3898 constraint on the rule. This was added later, so the syntax is a bit of a
3899 fudge. Anything that is not a retry rule starting "F," or "G," is treated as
3902 while (isspace(*p)) p++;
3903 if (Ustrncmp(p, "senders", 7) == 0)
3906 while (isspace(*p)) p++;
3907 if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3908 "\"=\" expected after \"senders\" in retry rule");
3909 while (isspace(*p)) p++;
3910 next->senders = string_dequote(&p);
3913 /* Now the retry rules. Keep the maximum timeout encountered. */
3915 while (isspace(*p)) p++;
3919 retry_rule *rule = store_get(sizeof(retry_rule));
3921 rchain = &(rule->next);
3923 rule->rule = toupper(*p++);
3924 rule->timeout = retry_arg(&p, 0);
3925 if (rule->timeout > retry_maximum_timeout)
3926 retry_maximum_timeout = rule->timeout;
3930 case 'F': /* Fixed interval */
3931 rule->p1 = retry_arg(&p, 0);
3934 case 'G': /* Geometrically increasing intervals */
3935 case 'H': /* Ditto, but with randomness */
3936 rule->p1 = retry_arg(&p, 0);
3937 rule->p2 = retry_arg(&p, 1);
3941 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter");
3945 if (rule->timeout <= 0 || rule->p1 <= 0 ||
3946 (rule->rule != 'F' && rule->p2 < 1000))
3947 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
3948 "bad parameters for retry rule");
3950 while (isspace(*p)) p++;
3954 while (isspace(*p)) p++;
3957 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected");
3964 /*************************************************
3965 * Initialize authenticators *
3966 *************************************************/
3968 /* Read the authenticators section of the configuration file.
3977 auth_instance *au, *bu;
3978 readconf_driver_init(US"authenticator",
3979 (driver_instance **)(&auths), /* chain anchor */
3980 (driver_info *)auths_available, /* available drivers */
3981 sizeof(auth_info), /* size of info block */
3982 &auth_defaults, /* default values for generic options */
3983 sizeof(auth_instance), /* size of instance block */
3984 optionlist_auths, /* generic options */
3985 optionlist_auths_size);
3987 for (au = auths; au != NULL; au = au->next)
3989 if (au->public_name == NULL)
3990 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for "
3991 "the %s authenticator", au->name);
3992 for (bu = au->next; bu != NULL; bu = bu->next)
3994 if (strcmpic(au->public_name, bu->public_name) == 0)
3996 if ((au->client && bu->client) || (au->server && bu->server))
3997 log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators "
3998 "(%s and %s) have the same public name (%s)",
3999 (au->client)? US"client" : US"server", au->name, bu->name,
4009 /*************************************************
4010 * Read ACL information *
4011 *************************************************/
4013 /* If this run of Exim is not doing something that involves receiving a
4014 message, we can just skip over the ACL information. No need to parse it.
4016 First, we have a function for acl_read() to call back to get the next line. We
4017 need to remember the line we passed, because at the end it will contain the
4018 name of the next ACL. */
4020 static uschar *acl_line;
4025 acl_line = get_config_line();
4030 /* Now the main function:
4041 /* Read each ACL and add it into the tree. Macro (re)definitions are allowed
4044 acl_line = get_config_line();
4046 while(acl_line != NULL)
4052 p = readconf_readname(name, sizeof(name), acl_line);
4053 if (isupper(*name) && *p == '=')
4055 read_macro_assignment(acl_line);
4056 acl_line = get_config_line();
4060 if (*p != ':' || name[0] == 0)
4061 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name");
4063 node = store_get(sizeof(tree_node) + Ustrlen(name));
4064 Ustrcpy(node->name, name);
4065 if (!tree_insertnode(&acl_anchor, node))
4066 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4067 "there are two ACLs called \"%s\"", name);
4069 node->data.ptr = acl_read(acl_callback, &error);
4071 if (node->data.ptr == NULL && error != NULL)
4072 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error);
4078 /*************************************************
4079 * Read configuration for local_scan() *
4080 *************************************************/
4082 /* This function is called after "begin local_scan" is encountered in the
4083 configuration file. If the local_scan() function allows for configuration
4084 options, we can process them. Otherwise, we expire in a panic.
4091 local_scan_init(void)
4093 #ifndef LOCAL_SCAN_HAS_OPTIONS
4094 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: "
4095 "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)");
4099 while ((p = get_config_line()) != NULL)
4101 (void) readconf_handle_option(p, local_scan_options, local_scan_options_count,
4102 NULL, US"local_scan option \"%s\" unknown");
4109 /*************************************************
4110 * Read rest of configuration (after main) *
4111 *************************************************/
4113 /* This function reads the rest of the runtime configuration, after the main
4114 configuration. It is called only when actually needed. Each subsequent section
4115 of the configuration starts with a line of the form
4119 where the name is "routers", "transports", etc. A section is terminated by
4120 hitting the next "begin" line, and the next name is left in next_section.
4121 Because it may confuse people as to whether the names are singular or plural,
4122 we add "s" if it's missing. There is always enough room in next_section for
4123 this. This function is basically just a switch.
4129 static uschar *section_list[] = {
4143 while(next_section[0] != 0)
4147 int last = sizeof(section_list) / sizeof(uschar *);
4149 int n = Ustrlen(next_section);
4151 if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s");
4155 int c = strcmpic(next_section, section_list[mid]);
4157 if (c > 0) first = mid + 1; else last = mid;
4159 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4160 "\"%.*s\" is not a known configuration section name", n, next_section);
4161 mid = (last + first)/2;
4165 if (((had ^= bit) & bit) == 0)
4166 log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN,
4167 "\"%.*s\" section is repeated in the configuration file", n,
4172 case 0: readconf_acl(); break;
4173 case 1: auths_init(); break;
4174 case 2: local_scan_init(); break;
4175 case 3: readconf_retries(); break;
4176 case 4: readconf_rewrites(); break;
4177 case 5: route_init(); break;
4178 case 6: transport_init(); break;
4182 (void)fclose(config_file);
4187 /* End of readconf.c */