1 /*************************************************
2 * Exim - an Internet mail transport agent *
3 *************************************************/
5 /* Copyright (c) University of Cambridge 1995 - 2009 */
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_dkim", opt_stringptr
, &acl_smtp_dkim
},
146 { "acl_smtp_etrn", opt_stringptr
, &acl_smtp_etrn
},
147 { "acl_smtp_expn", opt_stringptr
, &acl_smtp_expn
},
148 { "acl_smtp_helo", opt_stringptr
, &acl_smtp_helo
},
149 { "acl_smtp_mail", opt_stringptr
, &acl_smtp_mail
},
150 { "acl_smtp_mailauth", opt_stringptr
, &acl_smtp_mailauth
},
151 #ifdef WITH_CONTENT_SCAN
152 { "acl_smtp_mime", opt_stringptr
, &acl_smtp_mime
},
154 { "acl_smtp_notquit", opt_stringptr
, &acl_smtp_notquit
},
155 { "acl_smtp_predata", opt_stringptr
, &acl_smtp_predata
},
156 { "acl_smtp_quit", opt_stringptr
, &acl_smtp_quit
},
157 { "acl_smtp_rcpt", opt_stringptr
, &acl_smtp_rcpt
},
159 { "acl_smtp_starttls", opt_stringptr
, &acl_smtp_starttls
},
161 { "acl_smtp_vrfy", opt_stringptr
, &acl_smtp_vrfy
},
162 { "admin_groups", opt_gidlist
, &admin_groups
},
163 { "allow_domain_literals", opt_bool
, &allow_domain_literals
},
164 { "allow_mx_to_ip", opt_bool
, &allow_mx_to_ip
},
165 { "allow_utf8_domains", opt_bool
, &allow_utf8_domains
},
166 { "auth_advertise_hosts", opt_stringptr
, &auth_advertise_hosts
},
167 { "auto_thaw", opt_time
, &auto_thaw
},
168 #ifdef WITH_CONTENT_SCAN
169 { "av_scanner", opt_stringptr
, &av_scanner
},
171 { "bi_command", opt_stringptr
, &bi_command
},
172 #ifdef EXPERIMENTAL_BRIGHTMAIL
173 { "bmi_config_file", opt_stringptr
, &bmi_config_file
},
175 { "bounce_message_file", opt_stringptr
, &bounce_message_file
},
176 { "bounce_message_text", opt_stringptr
, &bounce_message_text
},
177 { "bounce_return_body", opt_bool
, &bounce_return_body
},
178 { "bounce_return_message", opt_bool
, &bounce_return_message
},
179 { "bounce_return_size_limit", opt_mkint
, &bounce_return_size_limit
},
180 { "bounce_sender_authentication",opt_stringptr
,&bounce_sender_authentication
},
181 { "callout_domain_negative_expire", opt_time
, &callout_cache_domain_negative_expire
},
182 { "callout_domain_positive_expire", opt_time
, &callout_cache_domain_positive_expire
},
183 { "callout_negative_expire", opt_time
, &callout_cache_negative_expire
},
184 { "callout_positive_expire", opt_time
, &callout_cache_positive_expire
},
185 { "callout_random_local_part",opt_stringptr
, &callout_random_local_part
},
186 { "check_log_inodes", opt_int
, &check_log_inodes
},
187 { "check_log_space", opt_Kint
, &check_log_space
},
188 { "check_rfc2047_length", opt_bool
, &check_rfc2047_length
},
189 { "check_spool_inodes", opt_int
, &check_spool_inodes
},
190 { "check_spool_space", opt_Kint
, &check_spool_space
},
191 { "daemon_smtp_port", opt_stringptr
|opt_hidden
, &daemon_smtp_port
},
192 { "daemon_smtp_ports", opt_stringptr
, &daemon_smtp_port
},
193 { "daemon_startup_retries", opt_int
, &daemon_startup_retries
},
194 { "daemon_startup_sleep", opt_time
, &daemon_startup_sleep
},
195 #ifdef EXPERIMENTAL_DCC
196 { "dcc_direct_add_header", opt_bool
, &dcc_direct_add_header
},
197 { "dccifd_address", opt_stringptr
, &dccifd_address
},
198 { "dccifd_options", opt_stringptr
, &dccifd_options
},
200 { "delay_warning", opt_timelist
, &delay_warning
},
201 { "delay_warning_condition", opt_stringptr
, &delay_warning_condition
},
202 { "deliver_drop_privilege", opt_bool
, &deliver_drop_privilege
},
203 { "deliver_queue_load_max", opt_fixed
, &deliver_queue_load_max
},
204 { "delivery_date_remove", opt_bool
, &delivery_date_remove
},
205 #ifdef ENABLE_DISABLE_FSYNC
206 { "disable_fsync", opt_bool
, &disable_fsync
},
208 { "disable_ipv6", opt_bool
, &disable_ipv6
},
210 { "dkim_verify_signers", opt_stringptr
, &dkim_verify_signers
},
212 { "dns_again_means_nonexist", opt_stringptr
, &dns_again_means_nonexist
},
213 { "dns_check_names_pattern", opt_stringptr
, &check_dns_names_pattern
},
214 { "dns_csa_search_limit", opt_int
, &dns_csa_search_limit
},
215 { "dns_csa_use_reverse", opt_bool
, &dns_csa_use_reverse
},
216 { "dns_ipv4_lookup", opt_stringptr
, &dns_ipv4_lookup
},
217 { "dns_retrans", opt_time
, &dns_retrans
},
218 { "dns_retry", opt_int
, &dns_retry
},
219 { "dns_use_edns0", opt_int
, &dns_use_edns0
},
220 /* This option is now a no-op, retained for compability */
221 { "drop_cr", opt_bool
, &drop_cr
},
222 /*********************************************************/
223 { "dsn_from", opt_stringptr
, &dsn_from
},
224 { "envelope_to_remove", opt_bool
, &envelope_to_remove
},
225 { "errors_copy", opt_stringptr
, &errors_copy
},
226 { "errors_reply_to", opt_stringptr
, &errors_reply_to
},
227 { "exim_group", opt_gid
, &exim_gid
},
228 { "exim_path", opt_stringptr
, &exim_path
},
229 { "exim_user", opt_uid
, &exim_uid
},
230 { "extra_local_interfaces", opt_stringptr
, &extra_local_interfaces
},
231 { "extract_addresses_remove_arguments", opt_bool
, &extract_addresses_remove_arguments
},
232 { "finduser_retries", opt_int
, &finduser_retries
},
233 { "freeze_tell", opt_stringptr
, &freeze_tell
},
234 { "gecos_name", opt_stringptr
, &gecos_name
},
235 { "gecos_pattern", opt_stringptr
, &gecos_pattern
},
237 { "gnutls_compat_mode", opt_bool
, &gnutls_compat_mode
},
238 { "gnutls_require_kx", opt_stringptr
, &gnutls_require_kx
},
239 { "gnutls_require_mac", opt_stringptr
, &gnutls_require_mac
},
240 { "gnutls_require_protocols", opt_stringptr
, &gnutls_require_proto
},
242 { "header_line_maxsize", opt_int
, &header_line_maxsize
},
243 { "header_maxsize", opt_int
, &header_maxsize
},
244 { "headers_charset", opt_stringptr
, &headers_charset
},
245 { "helo_accept_junk_hosts", opt_stringptr
, &helo_accept_junk_hosts
},
246 { "helo_allow_chars", opt_stringptr
, &helo_allow_chars
},
247 { "helo_lookup_domains", opt_stringptr
, &helo_lookup_domains
},
248 { "helo_try_verify_hosts", opt_stringptr
, &helo_try_verify_hosts
},
249 { "helo_verify_hosts", opt_stringptr
, &helo_verify_hosts
},
250 { "hold_domains", opt_stringptr
, &hold_domains
},
251 { "host_lookup", opt_stringptr
, &host_lookup
},
252 { "host_lookup_order", opt_stringptr
, &host_lookup_order
},
253 { "host_reject_connection", opt_stringptr
, &host_reject_connection
},
254 { "hosts_connection_nolog", opt_stringptr
, &hosts_connection_nolog
},
255 { "hosts_treat_as_local", opt_stringptr
, &hosts_treat_as_local
},
257 { "ibase_servers", opt_stringptr
, &ibase_servers
},
259 { "ignore_bounce_errors_after", opt_time
, &ignore_bounce_errors_after
},
260 { "ignore_fromline_hosts", opt_stringptr
, &ignore_fromline_hosts
},
261 { "ignore_fromline_local", opt_bool
, &ignore_fromline_local
},
262 { "keep_malformed", opt_time
, &keep_malformed
},
264 { "ldap_ca_cert_dir", opt_stringptr
, &eldap_ca_cert_dir
},
265 { "ldap_ca_cert_file", opt_stringptr
, &eldap_ca_cert_file
},
266 { "ldap_cert_file", opt_stringptr
, &eldap_cert_file
},
267 { "ldap_cert_key", opt_stringptr
, &eldap_cert_key
},
268 { "ldap_cipher_suite", opt_stringptr
, &eldap_cipher_suite
},
269 { "ldap_default_servers", opt_stringptr
, &eldap_default_servers
},
270 { "ldap_require_cert", opt_stringptr
, &eldap_require_cert
},
271 { "ldap_start_tls", opt_bool
, &eldap_start_tls
},
272 { "ldap_version", opt_int
, &eldap_version
},
274 { "local_from_check", opt_bool
, &local_from_check
},
275 { "local_from_prefix", opt_stringptr
, &local_from_prefix
},
276 { "local_from_suffix", opt_stringptr
, &local_from_suffix
},
277 { "local_interfaces", opt_stringptr
, &local_interfaces
},
278 { "local_scan_timeout", opt_time
, &local_scan_timeout
},
279 { "local_sender_retain", opt_bool
, &local_sender_retain
},
280 { "localhost_number", opt_stringptr
, &host_number_string
},
281 { "log_file_path", opt_stringptr
, &log_file_path
},
282 { "log_selector", opt_stringptr
, &log_selector_string
},
283 { "log_timezone", opt_bool
, &log_timezone
},
284 { "lookup_open_max", opt_int
, &lookup_open_max
},
285 { "max_username_length", opt_int
, &max_username_length
},
286 { "message_body_newlines", opt_bool
, &message_body_newlines
},
287 { "message_body_visible", opt_mkint
, &message_body_visible
},
288 { "message_id_header_domain", opt_stringptr
, &message_id_domain
},
289 { "message_id_header_text", opt_stringptr
, &message_id_text
},
290 { "message_logs", opt_bool
, &message_logs
},
291 { "message_size_limit", opt_stringptr
, &message_size_limit
},
292 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
293 { "move_frozen_messages", opt_bool
, &move_frozen_messages
},
295 { "mua_wrapper", opt_bool
, &mua_wrapper
},
297 { "mysql_servers", opt_stringptr
, &mysql_servers
},
299 { "never_users", opt_uidlist
, &never_users
},
301 { "openssl_options", opt_stringptr
, &openssl_options
},
304 { "oracle_servers", opt_stringptr
, &oracle_servers
},
306 { "percent_hack_domains", opt_stringptr
, &percent_hack_domains
},
308 { "perl_at_start", opt_bool
, &opt_perl_at_start
},
309 { "perl_startup", opt_stringptr
, &opt_perl_startup
},
312 { "pgsql_servers", opt_stringptr
, &pgsql_servers
},
314 { "pid_file_path", opt_stringptr
, &pid_file_path
},
315 { "pipelining_advertise_hosts", opt_stringptr
, &pipelining_advertise_hosts
},
316 { "preserve_message_logs", opt_bool
, &preserve_message_logs
},
317 { "primary_hostname", opt_stringptr
, &primary_hostname
},
318 { "print_topbitchars", opt_bool
, &print_topbitchars
},
319 { "process_log_path", opt_stringptr
, &process_log_path
},
320 { "prod_requires_admin", opt_bool
, &prod_requires_admin
},
321 { "qualify_domain", opt_stringptr
, &qualify_domain_sender
},
322 { "qualify_recipient", opt_stringptr
, &qualify_domain_recipient
},
323 { "queue_domains", opt_stringptr
, &queue_domains
},
324 { "queue_list_requires_admin",opt_bool
, &queue_list_requires_admin
},
325 { "queue_only", opt_bool
, &queue_only
},
326 { "queue_only_file", opt_stringptr
, &queue_only_file
},
327 { "queue_only_load", opt_fixed
, &queue_only_load
},
328 { "queue_only_load_latch", opt_bool
, &queue_only_load_latch
},
329 { "queue_only_override", opt_bool
, &queue_only_override
},
330 { "queue_run_in_order", opt_bool
, &queue_run_in_order
},
331 { "queue_run_max", opt_int
, &queue_run_max
},
332 { "queue_smtp_domains", opt_stringptr
, &queue_smtp_domains
},
333 { "receive_timeout", opt_time
, &receive_timeout
},
334 { "received_header_text", opt_stringptr
, &received_header_text
},
335 { "received_headers_max", opt_int
, &received_headers_max
},
336 { "recipient_unqualified_hosts", opt_stringptr
, &recipient_unqualified_hosts
},
337 { "recipients_max", opt_int
, &recipients_max
},
338 { "recipients_max_reject", opt_bool
, &recipients_max_reject
},
339 { "remote_max_parallel", opt_int
, &remote_max_parallel
},
340 { "remote_sort_domains", opt_stringptr
, &remote_sort_domains
},
341 { "retry_data_expire", opt_time
, &retry_data_expire
},
342 { "retry_interval_max", opt_time
, &retry_interval_max
},
343 { "return_path_remove", opt_bool
, &return_path_remove
},
344 { "return_size_limit", opt_mkint
|opt_hidden
, &bounce_return_size_limit
},
345 { "rfc1413_hosts", opt_stringptr
, &rfc1413_hosts
},
346 { "rfc1413_query_timeout", opt_time
, &rfc1413_query_timeout
},
347 { "sender_unqualified_hosts", opt_stringptr
, &sender_unqualified_hosts
},
348 { "smtp_accept_keepalive", opt_bool
, &smtp_accept_keepalive
},
349 { "smtp_accept_max", opt_int
, &smtp_accept_max
},
350 { "smtp_accept_max_nonmail", opt_int
, &smtp_accept_max_nonmail
},
351 { "smtp_accept_max_nonmail_hosts", opt_stringptr
, &smtp_accept_max_nonmail_hosts
},
352 { "smtp_accept_max_per_connection", opt_int
, &smtp_accept_max_per_connection
},
353 { "smtp_accept_max_per_host", opt_stringptr
, &smtp_accept_max_per_host
},
354 { "smtp_accept_queue", opt_int
, &smtp_accept_queue
},
355 { "smtp_accept_queue_per_connection", opt_int
, &smtp_accept_queue_per_connection
},
356 { "smtp_accept_reserve", opt_int
, &smtp_accept_reserve
},
357 { "smtp_active_hostname", opt_stringptr
, &raw_active_hostname
},
358 { "smtp_banner", opt_stringptr
, &smtp_banner
},
359 { "smtp_check_spool_space", opt_bool
, &smtp_check_spool_space
},
360 { "smtp_connect_backlog", opt_int
, &smtp_connect_backlog
},
361 { "smtp_enforce_sync", opt_bool
, &smtp_enforce_sync
},
362 { "smtp_etrn_command", opt_stringptr
, &smtp_etrn_command
},
363 { "smtp_etrn_serialize", opt_bool
, &smtp_etrn_serialize
},
364 { "smtp_load_reserve", opt_fixed
, &smtp_load_reserve
},
365 { "smtp_max_synprot_errors", opt_int
, &smtp_max_synprot_errors
},
366 { "smtp_max_unknown_commands",opt_int
, &smtp_max_unknown_commands
},
367 { "smtp_ratelimit_hosts", opt_stringptr
, &smtp_ratelimit_hosts
},
368 { "smtp_ratelimit_mail", opt_stringptr
, &smtp_ratelimit_mail
},
369 { "smtp_ratelimit_rcpt", opt_stringptr
, &smtp_ratelimit_rcpt
},
370 { "smtp_receive_timeout", opt_time
, &smtp_receive_timeout
},
371 { "smtp_reserve_hosts", opt_stringptr
, &smtp_reserve_hosts
},
372 { "smtp_return_error_details",opt_bool
, &smtp_return_error_details
},
373 #ifdef WITH_CONTENT_SCAN
374 { "spamd_address", opt_stringptr
, &spamd_address
},
376 #ifdef EXPERIMENTAL_SPF
377 { "spf_guess", opt_stringptr
, &spf_guess
},
379 { "split_spool_directory", opt_bool
, &split_spool_directory
},
380 { "spool_directory", opt_stringptr
, &spool_directory
},
382 { "sqlite_lock_timeout", opt_int
, &sqlite_lock_timeout
},
384 #ifdef EXPERIMENTAL_SRS
385 { "srs_config", opt_stringptr
, &srs_config
},
386 { "srs_hashlength", opt_int
, &srs_hashlength
},
387 { "srs_hashmin", opt_int
, &srs_hashmin
},
388 { "srs_maxage", opt_int
, &srs_maxage
},
389 { "srs_secrets", opt_stringptr
, &srs_secrets
},
390 { "srs_usehash", opt_bool
, &srs_usehash
},
391 { "srs_usetimestamp", opt_bool
, &srs_usetimestamp
},
393 { "strict_acl_vars", opt_bool
, &strict_acl_vars
},
394 { "strip_excess_angle_brackets", opt_bool
, &strip_excess_angle_brackets
},
395 { "strip_trailing_dot", opt_bool
, &strip_trailing_dot
},
396 { "syslog_duplication", opt_bool
, &syslog_duplication
},
397 { "syslog_facility", opt_stringptr
, &syslog_facility_str
},
398 { "syslog_processname", opt_stringptr
, &syslog_processname
},
399 { "syslog_timestamp", opt_bool
, &syslog_timestamp
},
400 { "system_filter", opt_stringptr
, &system_filter
},
401 { "system_filter_directory_transport", opt_stringptr
,&system_filter_directory_transport
},
402 { "system_filter_file_transport",opt_stringptr
,&system_filter_file_transport
},
403 { "system_filter_group", opt_gid
, &system_filter_gid
},
404 { "system_filter_pipe_transport",opt_stringptr
,&system_filter_pipe_transport
},
405 { "system_filter_reply_transport",opt_stringptr
,&system_filter_reply_transport
},
406 { "system_filter_user", opt_uid
, &system_filter_uid
},
407 { "tcp_nodelay", opt_bool
, &tcp_nodelay
},
408 #ifdef USE_TCP_WRAPPERS
409 { "tcp_wrappers_daemon_name", opt_stringptr
, &tcp_wrappers_daemon_name
},
411 { "timeout_frozen_after", opt_time
, &timeout_frozen_after
},
412 { "timezone", opt_stringptr
, &timezone_string
},
414 { "tls_advertise_hosts", opt_stringptr
, &tls_advertise_hosts
},
415 { "tls_certificate", opt_stringptr
, &tls_certificate
},
416 { "tls_crl", opt_stringptr
, &tls_crl
},
417 { "tls_dhparam", opt_stringptr
, &tls_dhparam
},
418 { "tls_on_connect_ports", opt_stringptr
, &tls_on_connect_ports
},
419 { "tls_privatekey", opt_stringptr
, &tls_privatekey
},
420 { "tls_remember_esmtp", opt_bool
, &tls_remember_esmtp
},
421 { "tls_require_ciphers", opt_stringptr
, &tls_require_ciphers
},
422 { "tls_try_verify_hosts", opt_stringptr
, &tls_try_verify_hosts
},
423 { "tls_verify_certificates", opt_stringptr
, &tls_verify_certificates
},
424 { "tls_verify_hosts", opt_stringptr
, &tls_verify_hosts
},
426 { "trusted_groups", opt_gidlist
, &trusted_groups
},
427 { "trusted_users", opt_uidlist
, &trusted_users
},
428 { "unknown_login", opt_stringptr
, &unknown_login
},
429 { "unknown_username", opt_stringptr
, &unknown_username
},
430 { "untrusted_set_sender", opt_stringptr
, &untrusted_set_sender
},
431 { "uucp_from_pattern", opt_stringptr
, &uucp_from_pattern
},
432 { "uucp_from_sender", opt_stringptr
, &uucp_from_sender
},
433 { "warn_message_file", opt_stringptr
, &warn_message_file
},
434 { "write_rejectlog", opt_bool
, &write_rejectlog
}
437 static int optionlist_config_size
=
438 sizeof(optionlist_config
)/sizeof(optionlist
);
442 /*************************************************
443 * Find the name of an option *
444 *************************************************/
446 /* This function is to aid debugging. Various functions take arguments that are
447 pointer variables in the options table or in option tables for various drivers.
448 For debugging output, it is useful to be able to find the name of the option
449 which is currently being processed. This function finds it, if it exists, by
450 searching the table(s).
452 Arguments: a value that is presumed to be in the table above
453 Returns: the option name, or an empty string
457 readconf_find_option(void *p
)
461 transport_instance
*t
;
463 for (i
= 0; i
< optionlist_config_size
; i
++)
464 if (p
== optionlist_config
[i
].value
) return US optionlist_config
[i
].name
;
466 for (r
= routers
; r
!= NULL
; r
= r
->next
)
468 router_info
*ri
= r
->info
;
469 for (i
= 0; i
< ri
->options_count
[0]; i
++)
471 if ((ri
->options
[i
].type
& opt_mask
) != opt_stringptr
) continue;
472 if (p
== (char *)(r
->options_block
) + (long int)(ri
->options
[i
].value
))
473 return US ri
->options
[i
].name
;
477 for (t
= transports
; t
!= NULL
; t
= t
->next
)
479 transport_info
*ti
= t
->info
;
480 for (i
= 0; i
< ti
->options_count
[0]; i
++)
482 if ((ti
->options
[i
].type
& opt_mask
) != opt_stringptr
) continue;
483 if (p
== (char *)(t
->options_block
) + (long int)(ti
->options
[i
].value
))
484 return US ti
->options
[i
].name
;
494 /*************************************************
495 * Deal with an assignment to a macro *
496 *************************************************/
498 /* This function is called when a line that starts with an upper case letter is
499 encountered. The argument "line" should contain a complete logical line, and
500 start with the first letter of the macro name. The macro name and the
501 replacement text are extracted and stored. Redefinition of existing,
502 non-command line, macros is permitted using '==' instead of '='.
505 s points to the start of the logical line
511 read_macro_assignment(uschar
*s
)
517 macro_item
*mlast
= NULL
;
519 while (isalnum(*s
) || *s
== '_')
521 if (namelen
>= sizeof(name
) - 1)
522 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
523 "macro name too long (maximum is %d characters)", sizeof(name
) - 1);
524 name
[namelen
++] = *s
++;
528 while (isspace(*s
)) s
++;
530 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "malformed macro definition");
537 while (isspace(*s
)) s
++;
539 /* If an existing macro of the same name was defined on the command line, we
540 just skip this definition. It's an error to attempt to redefine a macro without
541 redef set to TRUE, or to redefine a macro when it hasn't been defined earlier.
542 It is also an error to define a macro whose name begins with the name of a
543 previously defined macro. Note: it is documented that the other way round
546 for (m
= macros
; m
!= NULL
; m
= m
->next
)
548 int len
= Ustrlen(m
->name
);
550 if (Ustrcmp(m
->name
, name
) == 0)
552 if (!m
->command_line
&& !redef
)
553 log_write(0, LOG_CONFIG
|LOG_PANIC_DIE
, "macro \"%s\" is already "
554 "defined (use \"==\" if you want to redefine it", name
);
558 if (len
< namelen
&& Ustrstr(name
, m
->name
) != NULL
)
559 log_write(0, LOG_CONFIG
|LOG_PANIC_DIE
, "\"%s\" cannot be defined as "
560 "a macro because previously defined macro \"%s\" is a substring",
563 /* We cannot have this test, because it is documented that a substring
564 macro is permitted (there is even an example).
566 * if (len > namelen && Ustrstr(m->name, name) != NULL)
567 * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as "
568 * "a macro because it is a substring of previously defined macro \"%s\"",
575 /* Check for an overriding command-line definition. */
577 if (m
!= NULL
&& m
->command_line
) return;
579 /* Redefinition must refer to an existing macro. */
584 log_write(0, LOG_CONFIG
|LOG_PANIC_DIE
, "can't redefine an undefined macro "
588 /* We have a new definition. The macro_item structure includes a final vector
589 called "name" which is one byte long. Thus, adding "namelen" gives us enough
590 room to store the "name" string. */
594 m
= store_get(sizeof(macro_item
) + namelen
);
595 if (macros
== NULL
) macros
= m
; else mlast
->next
= m
;
596 Ustrncpy(m
->name
, name
, namelen
);
597 m
->name
[namelen
] = 0;
599 m
->command_line
= FALSE
;
602 /* Set the value of the new or redefined macro */
604 m
->replacement
= string_copy(s
);
611 /*************************************************
612 * Read configuration line *
613 *************************************************/
615 /* A logical line of text is read from the configuration file into the big
616 buffer, taking account of macros, .includes, and continuations. The size of
617 big_buffer is increased if necessary. The count of configuration lines is
618 maintained. Physical input lines starting with # (ignoring leading white space,
619 and after macro replacement) and empty logical lines are always ignored.
620 Leading and trailing spaces are removed.
622 If we hit a line of the form "begin xxxx", the xxxx is placed in the
623 next_section vector, and the function returns NULL, indicating the end of a
624 configuration section. On end-of-file, NULL is returned with next_section
629 Returns: a pointer to the first non-blank in the line,
630 or NULL if eof or end of section is reached
634 get_config_line(void)
636 int startoffset
= 0; /* To first non-blank char in logical line */
637 int len
= 0; /* Of logical line so far */
643 /* Loop for handling continuation lines, skipping comments, and dealing with
648 if (Ufgets(big_buffer
+len
, big_buffer_size
-len
, config_file
) == NULL
)
650 if (config_file_stack
!= NULL
) /* EOF inside .include */
652 (void)fclose(config_file
);
653 config_file
= config_file_stack
->file
;
654 config_filename
= config_file_stack
->filename
;
655 config_lineno
= config_file_stack
->lineno
;
656 config_file_stack
= config_file_stack
->next
;
660 /* EOF at top level */
662 if (cstate_stack_ptr
>= 0)
663 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
664 "Unexpected end of configuration file: .endif missing");
666 if (len
!= 0) break; /* EOF after continuation */
667 next_section
[0] = 0; /* EOF at start of logical line */
672 newlen
= len
+ Ustrlen(big_buffer
+ len
);
674 /* Handle pathologically long physical lines - yes, it did happen - by
675 extending big_buffer at this point. The code also copes with very long
678 while (newlen
== big_buffer_size
- 1 && big_buffer
[newlen
- 1] != '\n')
681 big_buffer_size
+= BIG_BUFFER_SIZE
;
682 newbuffer
= store_malloc(big_buffer_size
);
684 /* This use of strcpy is OK because we know that the string in the old
685 buffer is shorter than the new buffer. */
687 Ustrcpy(newbuffer
, big_buffer
);
688 store_free(big_buffer
);
689 big_buffer
= newbuffer
;
690 if (Ufgets(big_buffer
+newlen
, big_buffer_size
-newlen
, config_file
) == NULL
)
692 newlen
+= Ustrlen(big_buffer
+ newlen
);
695 /* Find the true start of the physical line - leading spaces are always
698 ss
= big_buffer
+ len
;
699 while (isspace(*ss
)) ss
++;
701 /* Process the physical line for macros. If this is the start of the logical
702 line, skip over initial text at the start of the line if it starts with an
703 upper case character followed by a sequence of name characters and an equals
704 sign, because that is the definition of a new macro, and we don't do
705 replacement therein. */
708 if (len
== 0 && isupper(*s
))
710 while (isalnum(*s
) || *s
== '_') s
++;
711 while (isspace(*s
)) s
++;
712 if (*s
!= '=') s
= ss
; /* Not a macro definition */
715 /* For each defined macro, scan the line (from after XXX= if present),
716 replacing all occurrences of the macro. */
719 for (m
= macros
; m
!= NULL
; m
= m
->next
)
724 while ((p
= Ustrstr(t
, m
->name
)) != NULL
)
727 int namelen
= Ustrlen(m
->name
);
728 int replen
= Ustrlen(m
->replacement
);
730 /* Expand the buffer if necessary */
732 while (newlen
- namelen
+ replen
+ 1 > big_buffer_size
)
734 int newsize
= big_buffer_size
+ BIG_BUFFER_SIZE
;
735 uschar
*newbuffer
= store_malloc(newsize
);
736 memcpy(newbuffer
, big_buffer
, newlen
+ 1);
737 p
= newbuffer
+ (p
- big_buffer
);
738 s
= newbuffer
+ (s
- big_buffer
);
739 ss
= newbuffer
+ (ss
- big_buffer
);
740 t
= newbuffer
+ (t
- big_buffer
);
741 big_buffer_size
= newsize
;
742 store_free(big_buffer
);
743 big_buffer
= newbuffer
;
746 /* Shuffle the remaining characters up or down in the buffer before
747 copying in the replacement text. Don't rescan the replacement for this
751 moveby
= replen
- namelen
;
754 memmove(p
+ replen
, pp
, (big_buffer
+ newlen
) - pp
+ 1);
757 Ustrncpy(p
, m
->replacement
, replen
);
763 /* An empty macro replacement at the start of a line could mean that ss no
764 longer points to the first non-blank character. */
766 while (isspace(*ss
)) ss
++;
768 /* Check for comment lines - these are physical lines. */
770 if (*ss
== '#') continue;
772 /* Handle conditionals, which are also applied to physical lines. Conditions
773 are of the form ".ifdef ANYTEXT" and are treated as true if any macro
774 expansion occured on the rest of the line. A preliminary test for the leading
775 '.' saves effort on most lines. */
781 /* Search the list of conditional directives */
783 for (i
= 0; i
< cond_list_size
; i
++)
786 cond_item
*c
= cond_list
+i
;
787 if (Ustrncmp(ss
+1, c
->name
, c
->namelen
) != 0) continue;
789 /* The following character must be white space or end of string */
791 n
= ss
[1 + c
->namelen
];
792 if (n
!= ' ' && n
!= 't' && n
!= '\n' && n
!= 0) break;
794 /* .ifdef and .ifndef push the current state onto the stack, then set
795 a new one from the table. Stack overflow is an error */
799 if (cstate_stack_ptr
>= CSTATE_STACK_SIZE
- 1)
800 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
801 ".%s nested too deeply", c
->name
);
802 cstate_stack
[++cstate_stack_ptr
] = cstate
;
803 cstate
= next_cstate
[cstate
][macro_found
? c
->action1
: c
->action2
];
806 /* For any of the others, stack underflow is an error. The next state
807 comes either from the stack (.endif) or from the table. */
811 if (cstate_stack_ptr
< 0)
812 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
813 ".%s without matching .ifdef", c
->name
);
814 cstate
= (c
->pushpop
< 0)? cstate_stack
[cstate_stack_ptr
--] :
815 next_cstate
[cstate
][macro_found
? c
->action1
: c
->action2
];
818 /* Having dealt with a directive, break the loop */
823 /* If we have handled a conditional directive, continue with the next
824 physical line. Otherwise, fall through. */
826 if (i
< cond_list_size
) continue;
829 /* If the conditional state is not 0 (actively using these lines), ignore
832 if (cstate
!= 0) continue; /* Conditional skip */
834 /* Handle .include lines - these are also physical lines. */
836 if (Ustrncmp(ss
, ".include", 8) == 0 &&
838 (Ustrncmp(ss
+8, "_if_exists", 10) == 0 && isspace(ss
[18]))))
841 int include_if_exists
= isspace(ss
[8])? 0 : 10;
842 config_file_item
*save
;
845 ss
+= 9 + include_if_exists
;
846 while (isspace(*ss
)) ss
++;
847 t
= ss
+ Ustrlen(ss
);
848 while (t
> ss
&& isspace(t
[-1])) t
--;
849 if (*ss
== '\"' && t
[-1] == '\"')
857 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, ".include specifies a non-"
858 "absolute path \"%s\"", ss
);
860 if (include_if_exists
!= 0 && (Ustat(ss
, &statbuf
) != 0)) continue;
862 save
= store_get(sizeof(config_file_item
));
863 save
->next
= config_file_stack
;
864 config_file_stack
= save
;
865 save
->file
= config_file
;
866 save
->filename
= config_filename
;
867 save
->lineno
= config_lineno
;
869 config_file
= Ufopen(ss
, "rb");
870 if (config_file
== NULL
)
871 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "failed to open included "
872 "configuration file %s", ss
);
873 config_filename
= string_copy(ss
);
878 /* If this is the start of the logical line, remember where the non-blank
879 data starts. Otherwise shuffle down continuation lines to remove leading
883 startoffset
= ss
- big_buffer
;
886 s
= big_buffer
+ len
;
889 memmove(s
, ss
, (newlen
- len
) - (ss
- s
) + 1);
894 /* Accept the new addition to the line. Remove trailing white space. */
897 while (len
> 0 && isspace(big_buffer
[len
-1])) len
--;
900 /* We are done if the line does not end in backslash and contains some data.
901 Empty logical lines are ignored. For continuations, remove the backslash and
902 go round the loop to read the continuation line. */
906 if (big_buffer
[len
-1] != '\\') break; /* End of logical line */
907 big_buffer
[--len
] = 0; /* Remove backslash */
909 } /* Loop for reading multiple physical lines */
911 /* We now have a logical line. Test for the end of a configuration section (or,
912 more accurately, for the start of the next section). Place the name of the next
913 section in next_section, and return NULL. If the name given is longer than
914 next_section, truncate it. It will be unrecognized later, because all the known
915 section names do fit. Leave space for pluralizing. */
917 s
= big_buffer
+ startoffset
; /* First non-space character */
918 if (strncmpic(s
, US
"begin ", 6) == 0)
921 while (isspace(*s
)) s
++;
922 if (big_buffer
+ len
- s
> sizeof(next_section
) - 2)
923 s
[sizeof(next_section
) - 2] = 0;
924 Ustrcpy(next_section
, s
);
928 /* Return the first non-blank character. */
935 /*************************************************
937 *************************************************/
939 /* The yield is the pointer to the next uschar. Names longer than the
940 output space are silently truncated. This function is also used from acl.c when
944 name where to put the name
948 Returns: new input pointer
952 readconf_readname(uschar
*name
, int len
, uschar
*s
)
955 while (isspace(*s
)) s
++;
958 while (isalnum(*s
) || *s
== '_')
960 if (p
< len
-1) name
[p
++] = *s
;
965 while (isspace(*s
)) s
++;
972 /*************************************************
973 * Read a time value *
974 *************************************************/
976 /* This function is also called from outside, to read argument
977 time values. The format of a time value is:
979 [<n>w][<n>d][<n>h][<n>m][<n>s]
981 as long as at least one is present. If a format error is encountered,
982 return a negative value. The value must be terminated by the given
987 terminator required terminating character
988 return_msec if TRUE, allow fractional seconds and return milliseconds
990 Returns: the time value, or -1 on syntax error
991 value is seconds if return_msec is FALSE
992 value is milliseconds if return_msec is TRUE
996 readconf_readtime(uschar
*s
, int terminator
, BOOL return_msec
)
1004 if (!isdigit(*s
)) return -1;
1005 (void)sscanf(CS s
, "%d%n", &value
, &count
);
1010 case 'w': value
*= 7;
1011 case 'd': value
*= 24;
1012 case 'h': value
*= 60;
1013 case 'm': value
*= 60;
1018 if (!return_msec
) return -1;
1019 (void)sscanf(CS s
, "%lf%n", &fraction
, &count
);
1021 if (*s
++ != 's') return -1;
1022 yield
+= (int)(fraction
* 1000.0);
1028 if (return_msec
) value
*= 1000;
1030 if (*s
== terminator
) return yield
;
1032 /* Control never reaches here. */
1037 /*************************************************
1038 * Read a fixed point value *
1039 *************************************************/
1041 /* The value is returned *1000
1045 terminator required terminator
1047 Returns: the value, or -1 on error
1051 readconf_readfixed(uschar
*s
, int terminator
)
1055 if (!isdigit(*s
)) return -1;
1056 (void)sscanf(CS s
, "%d%n", &value
, &count
);
1058 yield
= value
* 1000;
1062 while (isdigit((*(++s
))))
1064 yield
+= (*s
- '0') * m
;
1069 return (*s
== terminator
)? yield
: (-1);
1074 /*************************************************
1075 * Find option in list *
1076 *************************************************/
1078 /* The lists are always in order, so binary chop can be used.
1081 name the option name to search for
1082 ol the first entry in the option list
1083 last one more than the offset of the last entry in the option list
1085 Returns: pointer to an option entry, or NULL if not found
1089 find_option(uschar
*name
, optionlist
*ol
, int last
)
1092 while (last
> first
)
1094 int middle
= (first
+ last
)/2;
1095 int c
= Ustrcmp(name
, ol
[middle
].name
);
1096 if (c
== 0) return ol
+ middle
;
1097 else if (c
> 0) first
= middle
+ 1;
1105 /*************************************************
1106 * Find a set flag in option list *
1107 *************************************************/
1109 /* Because some versions of Unix make no restrictions on the values of uids and
1110 gids (even negative ones), we cannot represent "unset" by a special value.
1111 There is therefore a separate boolean variable for each one indicating whether
1112 a value is set or not. This function returns a pointer to the boolean, given
1113 the original option name. It is a major disaster if the flag cannot be found.
1116 name the name of the uid or gid option
1117 oltop points to the start of the relevant option list
1118 last one more than the offset of the last item in the option list
1119 data_block NULL when reading main options => data values in the option
1120 list are absolute addresses; otherwise they are byte offsets
1121 in data_block (used for driver options)
1123 Returns: a pointer to the boolean flag.
1127 get_set_flag(uschar
*name
, optionlist
*oltop
, int last
, void *data_block
)
1131 sprintf(CS name2
, "*set_%.50s", name
);
1132 ol
= find_option(name2
, oltop
, last
);
1133 if (ol
== NULL
) log_write(0, LOG_MAIN
|LOG_PANIC_DIE
,
1134 "Exim internal error: missing set flag for %s", name
);
1135 return (data_block
== NULL
)? (BOOL
*)(ol
->value
) :
1136 (BOOL
*)((uschar
*)data_block
+ (long int)(ol
->value
));
1142 /*************************************************
1143 * Output extra characters message and die *
1144 *************************************************/
1146 /* Called when an option line has junk on the end. Sometimes this is because
1147 the sysadmin thinks comments are permitted.
1150 s points to the extra characters
1151 t1..t3 strings to insert in the log message
1153 Returns: doesn't return; dies
1157 extra_chars_error(uschar
*s
, uschar
*t1
, uschar
*t2
, uschar
*t3
)
1159 uschar
*comment
= US
"";
1160 if (*s
== '#') comment
= US
" (# is comment only at line start)";
1161 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1162 "extra characters follow %s%s%s%s", t1
, t2
, t3
, comment
);
1167 /*************************************************
1168 * Read rewrite information *
1169 *************************************************/
1171 /* Each line of rewrite information contains:
1173 . A complete address in the form user@domain, possibly with
1174 leading * for each part; or alternatively, a regex.
1176 . A replacement string (which will be expanded).
1178 . An optional sequence of one-letter flags, indicating which
1179 headers etc. to apply this rule to.
1181 All this is decoded and placed into a control block. The OR of the flags is
1182 maintained in a common word.
1185 p points to the string that makes up the rule
1186 existflags points to the overall flag word
1187 isglobal TRUE if reading global rewrite rules
1189 Returns: the control block for the parsed rule.
1192 static rewrite_rule
*
1193 readconf_one_rewrite(uschar
*p
, int *existflags
, BOOL isglobal
)
1195 rewrite_rule
*next
= store_get(sizeof(rewrite_rule
));
1198 next
->key
= string_dequote(&p
);
1200 while (isspace(*p
)) p
++;
1202 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1203 "missing rewrite replacement string");
1206 next
->replacement
= string_dequote(&p
);
1208 while (*p
!= 0) switch (*p
++)
1210 case ' ': case '\t': break;
1212 case 'q': next
->flags
|= rewrite_quit
; break;
1213 case 'w': next
->flags
|= rewrite_whole
; break;
1215 case 'h': next
->flags
|= rewrite_all_headers
; break;
1216 case 's': next
->flags
|= rewrite_sender
; break;
1217 case 'f': next
->flags
|= rewrite_from
; break;
1218 case 't': next
->flags
|= rewrite_to
; break;
1219 case 'c': next
->flags
|= rewrite_cc
; break;
1220 case 'b': next
->flags
|= rewrite_bcc
; break;
1221 case 'r': next
->flags
|= rewrite_replyto
; break;
1223 case 'E': next
->flags
|= rewrite_all_envelope
; break;
1224 case 'F': next
->flags
|= rewrite_envfrom
; break;
1225 case 'T': next
->flags
|= rewrite_envto
; break;
1227 case 'Q': next
->flags
|= rewrite_qualify
; break;
1228 case 'R': next
->flags
|= rewrite_repeat
; break;
1231 next
->flags
|= rewrite_smtp
;
1232 if (next
->key
[0] != '^' && Ustrncmp(next
->key
, "\\N^", 3) != 0)
1233 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1234 "rewrite rule has the S flag but is not a regular expression");
1238 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1239 "unknown rewrite flag character '%c' "
1240 "(could be missing quotes round replacement item)", p
[-1]);
1244 /* If no action flags are set, set all the "normal" rewrites. */
1246 if ((next
->flags
& (rewrite_all
| rewrite_smtp
)) == 0)
1247 next
->flags
|= isglobal
? rewrite_all
: rewrite_all_headers
;
1249 /* Remember which exist, for optimization, and return the rule */
1251 *existflags
|= next
->flags
;
1258 /*************************************************
1259 * Read global rewrite information *
1260 *************************************************/
1262 /* Each line is a single rewrite rule; it is parsed into a control block
1263 by readconf_one_rewrite(), and its flags are ORed into the global flag
1264 word rewrite_existflags. */
1267 readconf_rewrites(void)
1269 rewrite_rule
**chain
= &global_rewrite_rules
;
1272 while ((p
= get_config_line()) != NULL
)
1274 rewrite_rule
*next
= readconf_one_rewrite(p
, &rewrite_existflags
, TRUE
);
1276 chain
= &(next
->next
);
1282 /*************************************************
1284 *************************************************/
1286 /* Strings are read into the normal store pool. As long we aren't too
1287 near the end of the current block, the string will just use what is necessary
1288 on the top of the stacking pool, because string_cat() uses the extension
1292 s the rest of the input line
1293 name the option name (for errors)
1295 Returns: pointer to the string
1299 read_string(uschar
*s
, uschar
*name
)
1304 if (*s
!= '\"') return string_copy(s
);
1307 yield
= string_dequote(&s
);
1309 if (s
== ss
+1 || s
[-1] != '\"')
1310 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1311 "missing quote at end of string value for %s", name
);
1313 if (*s
!= 0) extra_chars_error(s
, US
"string value for ", name
, US
"");
1319 /*************************************************
1320 * Handle option line *
1321 *************************************************/
1323 /* This function is called from several places to process a line containing the
1324 setting of an option. The first argument is the line to be decoded; it has been
1325 checked not to be empty and not to start with '#'. Trailing newlines and white
1326 space have been removed. The second argument is a pointer to the list of
1327 variable names that are to be recognized, together with their types and
1328 locations, and the third argument gives the number of entries in the list.
1330 The fourth argument is a pointer to a data block. If it is NULL, then the data
1331 values in the options list are absolute addresses. Otherwise, they are byte
1332 offsets in the data block.
1334 String option data may continue onto several lines; this function reads further
1335 data from config_file if necessary.
1337 The yield of this function is normally zero. If a string continues onto
1338 multiple lines, then the data value is permitted to be followed by a comma
1339 or a semicolon (for use in drivers) and the yield is that character.
1342 buffer contains the configuration line to be handled
1343 oltop points to the start of the relevant option list
1344 last one more than the offset of the last item in the option list
1345 data_block NULL when reading main options => data values in the option
1346 list are absolute addresses; otherwise they are byte offsets
1347 in data_block when they have opt_public set; otherwise
1348 they are byte offsets in data_block->options_block.
1349 unknown_txt format string to use in panic message for unknown option;
1350 must contain %s for option name
1351 if given as NULL, don't panic on unknown option
1353 Returns: TRUE if an option was read successfully,
1354 FALSE false for an unknown option if unknown_txt == NULL,
1355 otherwise panic and die on an unknown option
1359 readconf_handle_option(uschar
*buffer
, optionlist
*oltop
, int last
,
1360 void *data_block
, uschar
*unknown_txt
)
1364 int n
, count
, type
, value
;
1368 BOOL boolvalue
= TRUE
;
1369 BOOL freesptr
= TRUE
;
1370 BOOL extra_condition
= FALSE
;
1371 optionlist
*ol
, *ol2
;
1375 uschar
*inttype
= US
"";
1378 uschar
*saved_condition
, *strtemp
;
1379 uschar
**str_target
;
1383 /* There may be leading spaces; thereafter, we expect an option name starting
1386 while (isspace(*s
)) s
++;
1388 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "option setting expected: %s", s
);
1390 /* Read the name of the option, and skip any subsequent white space. If
1391 it turns out that what we read was "hide", set the flag indicating that
1392 this is a secure option, and loop to read the next word. */
1394 for (n
= 0; n
< 2; n
++)
1396 while (isalnum(*s
) || *s
== '_')
1398 if (ptr
< sizeof(name
)-1) name
[ptr
++] = *s
;
1402 while (isspace(*s
)) s
++;
1403 if (Ustrcmp(name
, "hide") != 0) break;
1404 issecure
= opt_secure
;
1408 /* Deal with "no_" or "not_" here for booleans */
1410 if (Ustrncmp(name
, "no_", 3) == 0)
1416 if (Ustrncmp(name
, "not_", 4) == 0)
1422 /* Search the list for the given name. A non-existent name, or an option that
1423 is set twice, is a disaster. */
1425 ol
= find_option(name
+ offset
, oltop
, last
);
1429 if (unknown_txt
== NULL
) return FALSE
;
1430 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, CS unknown_txt
, name
);
1433 if ((ol
->type
& opt_set
) != 0)
1435 uschar
*mname
= name
;
1436 if (Ustrncmp(mname
, "no_", 3) == 0) mname
+= 3;
1437 if (Ustrcmp(mname
, "condition") == 0)
1438 extra_condition
= TRUE
;
1440 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1441 "\"%s\" option set for the second time", mname
);
1444 ol
->type
|= opt_set
| issecure
;
1445 type
= ol
->type
& opt_mask
;
1447 /* Types with data values must be followed by '='; the "no[t]_" prefix
1448 applies only to boolean values. */
1450 if (type
< opt_bool
|| type
> opt_bool_last
)
1453 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1454 "negation prefix applied to a non-boolean option");
1456 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1457 "unexpected end of line (data missing) after %s", name
);
1459 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "missing \"=\" after %s", name
);
1462 /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and
1463 true/false/yes/no, or, in the case of opt_expanded_bool, a general string that
1464 ultimately expands to one of those values. */
1466 else if (*s
!= 0 && (offset
!= 0 || *s
!= '='))
1467 extra_chars_error(s
, US
"boolean option ", name
, US
"");
1469 /* Skip white space after = */
1471 if (*s
== '=') while (isspace((*(++s
))));
1473 /* If there is a data block and the opt_public flag is not set, change
1474 the data block pointer to the private options block. */
1476 if (data_block
!= NULL
&& (ol
->type
& opt_public
) == 0)
1477 data_block
= (void *)(((driver_instance
*)data_block
)->options_block
);
1479 /* Now get the data according to the type. */
1483 /* If a string value is not enclosed in quotes, it consists of
1484 the rest of the current line, verbatim. Otherwise, string escapes
1487 A transport is specified as a string, which is then looked up in the
1488 list of transports. A search type is specified as one of a number of
1491 A set or rewrite rules for a driver is specified as a string, which is
1492 then parsed into a suitable chain of control blocks.
1494 Uids and gids are specified as strings which are then looked up in the
1495 passwd file. Lists of uids and gids are similarly specified as colon-
1496 separated strings. */
1501 case opt_expand_uid
:
1502 case opt_expand_gid
:
1507 reset_point
= sptr
= read_string(s
, name
);
1509 /* Having read a string, we now have several different ways of using it,
1510 depending on the data type, so do another switch. If keeping the actual
1511 string is not required (because it is interpreted), freesptr is set TRUE,
1512 and at the end we reset the pool. */
1516 /* If this was a string, set the variable to point to the new string,
1517 and set the flag so its store isn't reclaimed. If it was a list of rewrite
1518 rules, we still keep the string (for printing), and parse the rules into a
1519 control block and flags word. */
1522 if (data_block
== NULL
)
1523 str_target
= (uschar
**)(ol
->value
);
1525 str_target
= (uschar
**)((uschar
*)data_block
+ (long int)(ol
->value
));
1526 if (extra_condition
)
1528 /* We already have a condition, we're conducting a crude hack to let
1529 multiple condition rules be chained together, despite storing them in
1531 saved_condition
= *str_target
;
1532 strtemp
= string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}",
1533 saved_condition
, sptr
);
1534 *str_target
= string_copy_malloc(strtemp
);
1535 /* TODO(pdp): there is a memory leak here when we set 3 or more
1536 conditions; I still don't understand the store mechanism enough
1537 to know what's the safe way to free content from an earlier store.
1538 AFAICT, stores stack, so freeing an early stored item also stores
1539 all data alloc'd after it. If we knew conditions were adjacent,
1540 we could survive that, but we don't. So I *think* we need to take
1541 another bit from opt_type to indicate "malloced"; this seems like
1542 quite a hack, especially for this one case. It also means that
1543 we can't ever reclaim the store from the *first* condition.
1545 Because we only do this once, near process start-up, I'm prepared to
1546 let this slide for the time being, even though it rankles. */
1556 if (data_block
== NULL
)
1557 *((uschar
**)(ol
->value
)) = sptr
;
1559 *((uschar
**)((uschar
*)data_block
+ (long int)(ol
->value
))) = sptr
;
1561 if (type
== opt_rewrite
)
1566 rewrite_rule
**chain
;
1569 sprintf(CS name2
, "*%.50s_rules", name
);
1570 ol2
= find_option(name2
, oltop
, last
);
1571 sprintf(CS name2
, "*%.50s_flags", name
);
1572 ol3
= find_option(name2
, oltop
, last
);
1574 if (ol2
== NULL
|| ol3
== NULL
)
1575 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1576 "rewrite rules not available for driver");
1578 if (data_block
== NULL
)
1580 chain
= (rewrite_rule
**)(ol2
->value
);
1581 flagptr
= (int *)(ol3
->value
);
1585 chain
= (rewrite_rule
**)((uschar
*)data_block
+ (long int)(ol2
->value
));
1586 flagptr
= (int *)((uschar
*)data_block
+ (long int)(ol3
->value
));
1589 while ((p
= string_nextinlist(&sptr
, &sep
, big_buffer
, BIG_BUFFER_SIZE
))
1592 rewrite_rule
*next
= readconf_one_rewrite(p
, flagptr
, FALSE
);
1594 chain
= &(next
->next
);
1597 if ((*flagptr
& (rewrite_all_envelope
| rewrite_smtp
)) != 0)
1598 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "rewrite rule specifies a "
1599 "non-header rewrite - not allowed at transport time -");
1603 /* If it was an expanded uid, see if there is any expansion to be
1604 done by checking for the presence of a $ character. If there is, save it
1605 in the corresponding *expand_user option field. Otherwise, fall through
1606 to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds
1609 case opt_expand_uid
:
1610 sprintf(CS name2
, "*expand_%.50s", name
);
1611 ol2
= find_option(name2
, oltop
, last
);
1614 uschar
*ss
= (Ustrchr(sptr
, '$') != NULL
)? sptr
: NULL
;
1616 if (data_block
== NULL
)
1617 *((uschar
**)(ol2
->value
)) = ss
;
1619 *((uschar
**)((uschar
*)data_block
+ (long int)(ol2
->value
))) = ss
;
1623 *(get_set_flag(name
, oltop
, last
, data_block
)) = FALSE
;
1629 /* Look up a fixed uid, and also make use of the corresponding gid
1630 if a passwd entry is returned and the gid has not been set. */
1633 if (!route_finduser(sptr
, &pw
, &uid
))
1634 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "user %s was not found", sptr
);
1635 if (data_block
== NULL
)
1636 *((uid_t
*)(ol
->value
)) = uid
;
1638 *((uid_t
*)((uschar
*)data_block
+ (long int)(ol
->value
))) = uid
;
1640 /* Set the flag indicating a fixed value is set */
1642 *(get_set_flag(name
, oltop
, last
, data_block
)) = TRUE
;
1644 /* Handle matching gid if we have a passwd entry: done by finding the
1645 same name with terminating "user" changed to "group"; if not found,
1646 ignore. Also ignore if the value is already set. */
1648 if (pw
== NULL
) break;
1649 Ustrcpy(name
+Ustrlen(name
)-4, "group");
1650 ol2
= find_option(name
, oltop
, last
);
1651 if (ol2
!= NULL
&& ((ol2
->type
& opt_mask
) == opt_gid
||
1652 (ol2
->type
& opt_mask
) == opt_expand_gid
))
1654 BOOL
*set_flag
= get_set_flag(name
, oltop
, last
, data_block
);
1657 if (data_block
== NULL
)
1658 *((gid_t
*)(ol2
->value
)) = pw
->pw_gid
;
1660 *((gid_t
*)((uschar
*)data_block
+ (long int)(ol2
->value
))) = pw
->pw_gid
;
1666 /* If it was an expanded gid, see if there is any expansion to be
1667 done by checking for the presence of a $ character. If there is, save it
1668 in the corresponding *expand_user option field. Otherwise, fall through
1669 to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds
1672 case opt_expand_gid
:
1673 sprintf(CS name2
, "*expand_%.50s", name
);
1674 ol2
= find_option(name2
, oltop
, last
);
1677 uschar
*ss
= (Ustrchr(sptr
, '$') != NULL
)? sptr
: NULL
;
1679 if (data_block
== NULL
)
1680 *((uschar
**)(ol2
->value
)) = ss
;
1682 *((uschar
**)((uschar
*)data_block
+ (long int)(ol2
->value
))) = ss
;
1686 *(get_set_flag(name
, oltop
, last
, data_block
)) = FALSE
;
1692 /* Handle freestanding gid */
1695 if (!route_findgroup(sptr
, &gid
))
1696 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "group %s was not found", sptr
);
1697 if (data_block
== NULL
)
1698 *((gid_t
*)(ol
->value
)) = gid
;
1700 *((gid_t
*)((uschar
*)data_block
+ (long int)(ol
->value
))) = gid
;
1701 *(get_set_flag(name
, oltop
, last
, data_block
)) = TRUE
;
1704 /* If it was a uid list, look up each individual entry, and build
1705 a vector of uids, with a count in the first element. Put the vector
1706 in malloc store so we can free the string. (We are reading into
1707 permanent store already.) */
1715 uschar
*op
= expand_string (sptr
);
1718 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "failed to expand %s: %s",
1719 name
, expand_string_message
);
1722 if (*p
!= 0) count
++;
1723 while (*p
!= 0) if (*p
++ == ':' && *p
!= 0) count
++;
1724 list
= store_malloc(count
*sizeof(uid_t
));
1725 list
[ptr
++] = (uid_t
)(count
- 1);
1727 if (data_block
== NULL
)
1728 *((uid_t
**)(ol
->value
)) = list
;
1730 *((uid_t
**)((uschar
*)data_block
+ (long int)(ol
->value
))) = list
;
1736 (void)string_nextinlist(&p
, &sep
, big_buffer
, BIG_BUFFER_SIZE
);
1737 if (!route_finduser(big_buffer
, NULL
, &uid
))
1738 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "user %s was not found",
1745 /* If it was a gid list, look up each individual entry, and build
1746 a vector of gids, with a count in the first element. Put the vector
1747 in malloc store so we can free the string. (We are reading into permanent
1756 uschar
*op
= expand_string (sptr
);
1759 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "failed to expand %s: %s",
1760 name
, expand_string_message
);
1763 if (*p
!= 0) count
++;
1764 while (*p
!= 0) if (*p
++ == ':' && *p
!= 0) count
++;
1765 list
= store_malloc(count
*sizeof(gid_t
));
1766 list
[ptr
++] = (gid_t
)(count
- 1);
1768 if (data_block
== NULL
)
1769 *((gid_t
**)(ol
->value
)) = list
;
1771 *((gid_t
**)((uschar
*)data_block
+ (long int)(ol
->value
))) = list
;
1777 (void)string_nextinlist(&p
, &sep
, big_buffer
, BIG_BUFFER_SIZE
);
1778 if (!route_findgroup(big_buffer
, &gid
))
1779 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "group %s was not found",
1787 /* Release store if the value of the string doesn't need to be kept. */
1789 if (freesptr
) store_reset(reset_point
);
1792 /* Expanded boolean: if no characters follow, or if there are no dollar
1793 characters, this is a fixed-valued boolean, and we fall through. Otherwise,
1794 save the string for later expansion in the alternate place. */
1796 case opt_expand_bool
:
1797 if (*s
!= 0 && Ustrchr(s
, '$') != 0)
1799 sprintf(CS name2
, "*expand_%.50s", name
);
1800 ol2
= find_option(name2
, oltop
, last
);
1803 reset_point
= sptr
= read_string(s
, name
);
1804 if (data_block
== NULL
)
1805 *((uschar
**)(ol2
->value
)) = sptr
;
1807 *((uschar
**)((uschar
*)data_block
+ (long int)(ol2
->value
))) = sptr
;
1814 /* Boolean: if no characters follow, the value is boolvalue. Otherwise
1815 look for yes/not/true/false. Some booleans are stored in a single bit in
1816 a single int. There's a special fudge for verify settings; without a suffix
1817 they set both xx_sender and xx_recipient. The table points to the sender
1818 value; search subsequently for the recipient. There's another special case:
1819 opt_bool_set also notes when a boolean has been set. */
1823 case opt_bool_verify
:
1827 s
= readconf_readname(name2
, 64, s
);
1828 if (strcmpic(name2
, US
"true") == 0 || strcmpic(name2
, US
"yes") == 0)
1830 else if (strcmpic(name2
, US
"false") == 0 || strcmpic(name2
, US
"no") == 0)
1832 else log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1833 "\"%s\" is not a valid value for the \"%s\" option", name2
, name
);
1834 if (*s
!= 0) extra_chars_error(s
, string_sprintf("\"%s\" ", name2
),
1835 US
"for boolean option ", name
);
1838 /* Handle single-bit type. */
1840 if (type
== opt_bit
)
1842 int bit
= 1 << ((ol
->type
>> 16) & 31);
1843 int *ptr
= (data_block
== NULL
)?
1844 (int *)(ol
->value
) :
1845 (int *)((uschar
*)data_block
+ (long int)ol
->value
);
1846 if (boolvalue
) *ptr
|= bit
; else *ptr
&= ~bit
;
1850 /* Handle full BOOL types */
1852 if (data_block
== NULL
)
1853 *((BOOL
*)(ol
->value
)) = boolvalue
;
1855 *((BOOL
*)((uschar
*)data_block
+ (long int)(ol
->value
))) = boolvalue
;
1859 if (type
== opt_bool_verify
)
1861 sprintf(CS name2
, "%.50s_recipient", name
+ offset
);
1862 ol2
= find_option(name2
, oltop
, last
);
1865 if (data_block
== NULL
)
1866 *((BOOL
*)(ol2
->value
)) = boolvalue
;
1868 *((BOOL
*)((uschar
*)data_block
+ (long int)(ol2
->value
))) = boolvalue
;
1872 /* Note that opt_bool_set type is set, if there is somewhere to do so */
1874 else if (type
== opt_bool_set
)
1876 sprintf(CS name2
, "*set_%.50s", name
+ offset
);
1877 ol2
= find_option(name2
, oltop
, last
);
1880 if (data_block
== NULL
)
1881 *((BOOL
*)(ol2
->value
)) = TRUE
;
1883 *((BOOL
*)((uschar
*)data_block
+ (long int)(ol2
->value
))) = TRUE
;
1892 inttype
= US
"octal ";
1894 /* Integer: a simple(ish) case; allow octal and hex formats, and
1895 suffixes K and M. The different types affect output, not input. */
1904 lvalue
= strtol(CS s
, CSS
&endptr
, intbase
);
1907 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "%sinteger expected for %s",
1910 if (errno
!= ERANGE
)
1912 if (tolower(*endptr
) == 'k')
1914 if (lvalue
> INT_MAX
/1024 || lvalue
< INT_MIN
/1024) errno
= ERANGE
;
1915 else lvalue
*= 1024;
1918 else if (tolower(*endptr
) == 'm')
1920 if (lvalue
> INT_MAX
/(1024*1024) || lvalue
< INT_MIN
/(1024*1024))
1922 else lvalue
*= 1024*1024;
1927 if (errno
== ERANGE
|| lvalue
> INT_MAX
|| lvalue
< INT_MIN
)
1928 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1929 "absolute value of integer \"%s\" is too large (overflow)", s
);
1931 while (isspace(*endptr
)) endptr
++;
1933 extra_chars_error(endptr
, inttype
, US
"integer value for ", name
);
1935 value
= (int)lvalue
;
1938 if (data_block
== NULL
)
1939 *((int *)(ol
->value
)) = value
;
1941 *((int *)((uschar
*)data_block
+ (long int)(ol
->value
))) = value
;
1944 /* Integer held in K: again, allow octal and hex formats, and suffixes K and
1951 value
= strtol(CS s
, CSS
&endptr
, intbase
);
1954 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "%sinteger expected for %s",
1957 if (errno
!= ERANGE
)
1959 if (tolower(*endptr
) == 'm')
1961 if (value
> INT_MAX
/1024 || value
< INT_MIN
/1024) errno
= ERANGE
;
1965 else if (tolower(*endptr
) == 'k')
1971 value
= (value
+ 512)/1024;
1975 if (errno
== ERANGE
) log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1976 "absolute value of integer \"%s\" is too large (overflow)", s
);
1978 while (isspace(*endptr
)) endptr
++;
1980 extra_chars_error(endptr
, inttype
, US
"integer value for ", name
);
1983 if (data_block
== NULL
)
1984 *((int *)(ol
->value
)) = value
;
1986 *((int *)((uschar
*)data_block
+ (long int)(ol
->value
))) = value
;
1989 /* Fixed-point number: held to 3 decimal places. */
1992 if (sscanf(CS s
, "%d%n", &value
, &count
) != 1)
1993 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1994 "fixed-point number expected for %s", name
);
1996 if (value
< 0) log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
1997 "integer \"%s\" is too large (overflow)", s
);
2001 if (value
< 0) log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
2002 "integer \"%s\" is too large (overflow)", s
);
2004 if (s
[count
] == '.')
2007 while (isdigit(s
[++count
]))
2009 value
+= (s
[count
] - '0') * d
;
2014 while (isspace(s
[count
])) count
++;
2017 extra_chars_error(s
+count
, US
"fixed-point value for ", name
, US
"");
2019 if (data_block
== NULL
)
2020 *((int *)(ol
->value
)) = value
;
2022 *((int *)((uschar
*)data_block
+ (long int)(ol
->value
))) = value
;
2025 /* There's a special routine to read time values. */
2028 value
= readconf_readtime(s
, 0, FALSE
);
2030 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "invalid time value for %s",
2032 if (data_block
== NULL
)
2033 *((int *)(ol
->value
)) = value
;
2035 *((int *)((uschar
*)data_block
+ (long int)(ol
->value
))) = value
;
2038 /* A time list is a list of colon-separated times, with the first
2039 element holding the size of the list and the second the number of
2045 int *list
= (data_block
== NULL
)?
2046 (int *)(ol
->value
) :
2047 (int *)((uschar
*)data_block
+ (long int)(ol
->value
));
2049 if (*s
!= 0) for (count
= 1; count
<= list
[0] - 2; count
++)
2052 uschar
*snext
= Ustrchr(s
, ':');
2056 while (ss
> s
&& isspace(ss
[-1])) ss
--;
2059 value
= readconf_readtime(s
, terminator
, FALSE
);
2061 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "invalid time value for %s",
2063 if (count
> 1 && value
<= list
[count
])
2064 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
2065 "time value out of order for %s", name
);
2066 list
[count
+1] = value
;
2067 if (snext
== NULL
) break;
2069 while (isspace(*s
)) s
++;
2072 if (count
> list
[0] - 2)
2073 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "too many time values for %s",
2075 if (count
> 0 && list
[2] == 0) count
= 0;
2087 /*************************************************
2088 * Print a time value *
2089 *************************************************/
2092 Argument: a time value in seconds
2093 Returns: pointer to a fixed buffer containing the time as a string,
2094 in readconf_readtime() format
2098 readconf_printtime(int t
)
2101 uschar
*p
= time_buffer
;
2118 if (w
> 0) { sprintf(CS p
, "%dw", w
); while (*p
) p
++; }
2119 if (d
> 0) { sprintf(CS p
, "%dd", d
); while (*p
) p
++; }
2120 if (h
> 0) { sprintf(CS p
, "%dh", h
); while (*p
) p
++; }
2121 if (m
> 0) { sprintf(CS p
, "%dm", m
); while (*p
) p
++; }
2122 if (s
> 0 || p
== time_buffer
) sprintf(CS p
, "%ds", s
);
2129 /*************************************************
2130 * Print an individual option value *
2131 *************************************************/
2133 /* This is used by the -bP option, so prints to the standard output.
2134 The entire options list is passed in as an argument, because some options come
2135 in pairs - typically uid/gid settings, which can either be explicit numerical
2136 values, or strings to be expanded later. If the numerical value is unset,
2137 search for "*expand_<name>" to see if there is a string equivalent.
2140 ol option entry, or NULL for an unknown option
2142 options_block NULL for main configuration options; otherwise points to
2143 a driver block; if the option doesn't have opt_public
2144 set, then options_block->options_block is where the item
2146 oltop points to the option list in which ol exists
2147 last one more than the offset of the last entry in optop
2153 print_ol(optionlist
*ol
, uschar
*name
, void *options_block
,
2154 optionlist
*oltop
, int last
)
2167 printf("%s is not a known option\n", name
);
2171 /* Non-admin callers cannot see options that have been flagged secure by the
2174 if (!admin_user
&& (ol
->type
& opt_secure
) != 0)
2176 printf("%s = <value not displayable>\n", name
);
2180 /* Else show the value of the option */
2183 if (options_block
!= NULL
)
2185 if ((ol
->type
& opt_public
) == 0)
2186 options_block
= (void *)(((driver_instance
*)options_block
)->options_block
);
2187 value
= (void *)((uschar
*)options_block
+ (long int)value
);
2190 switch(ol
->type
& opt_mask
)
2193 case opt_rewrite
: /* Show the text value */
2194 s
= *((uschar
**)value
);
2195 printf("%s = %s\n", name
, (s
== NULL
)? US
"" : string_printing2(s
, FALSE
));
2199 printf("%s = %d\n", name
, *((int *)value
));
2204 int x
= *((int *)value
);
2205 if (x
!= 0 && (x
& 1023) == 0)
2209 if ((x
& 1023) == 0)
2214 printf("%s = %d%c\n", name
, x
, c
);
2216 else printf("%s = %d\n", name
, x
);
2222 int x
= *((int *)value
);
2223 if (x
== 0) printf("%s = 0\n", name
);
2224 else if ((x
& 1023) == 0) printf("%s = %dM\n", name
, x
>> 10);
2225 else printf("%s = %dK\n", name
, x
);
2230 printf("%s = %#o\n", name
, *((int *)value
));
2233 /* Can be negative only when "unset", in which case integer */
2237 int x
= *((int *)value
);
2240 if (x
< 0) printf("%s =\n", name
); else
2242 printf("%s = %d.", name
, x
/1000);
2255 /* If the numerical value is unset, try for the string value */
2257 case opt_expand_uid
:
2258 if (! *get_set_flag(name
, oltop
, last
, options_block
))
2260 sprintf(CS name2
, "*expand_%.50s", name
);
2261 ol2
= find_option(name2
, oltop
, last
);
2264 void *value2
= ol2
->value
;
2265 if (options_block
!= NULL
)
2266 value2
= (void *)((uschar
*)options_block
+ (long int)value2
);
2267 s
= *((uschar
**)value2
);
2268 printf("%s = %s\n", name
, (s
== NULL
)? US
"" : string_printing(s
));
2273 /* Else fall through */
2276 if (! *get_set_flag(name
, oltop
, last
, options_block
))
2277 printf("%s =\n", name
);
2280 pw
= getpwuid(*((uid_t
*)value
));
2282 printf("%s = %ld\n", name
, (long int)(*((uid_t
*)value
)));
2283 else printf("%s = %s\n", name
, pw
->pw_name
);
2287 /* If the numerical value is unset, try for the string value */
2289 case opt_expand_gid
:
2290 if (! *get_set_flag(name
, oltop
, last
, options_block
))
2292 sprintf(CS name2
, "*expand_%.50s", name
);
2293 ol2
= find_option(name2
, oltop
, last
);
2294 if (ol2
!= NULL
&& (ol2
->type
& opt_mask
) == opt_stringptr
)
2296 void *value2
= ol2
->value
;
2297 if (options_block
!= NULL
)
2298 value2
= (void *)((uschar
*)options_block
+ (long int)value2
);
2299 s
= *((uschar
**)value2
);
2300 printf("%s = %s\n", name
, (s
== NULL
)? US
"" : string_printing(s
));
2305 /* Else fall through */
2308 if (! *get_set_flag(name
, oltop
, last
, options_block
))
2309 printf("%s =\n", name
);
2312 gr
= getgrgid(*((int *)value
));
2314 printf("%s = %ld\n", name
, (long int)(*((int *)value
)));
2315 else printf("%s = %s\n", name
, gr
->gr_name
);
2320 uidlist
= *((uid_t
**)value
);
2321 printf("%s =", name
);
2322 if (uidlist
!= NULL
)
2326 for (i
= 1; i
<= (int)(uidlist
[0]); i
++)
2328 uschar
*name
= NULL
;
2329 pw
= getpwuid(uidlist
[i
]);
2330 if (pw
!= NULL
) name
= US pw
->pw_name
;
2331 if (name
!= NULL
) printf("%c%s", sep
, name
);
2332 else printf("%c%ld", sep
, (long int)(uidlist
[i
]));
2340 gidlist
= *((gid_t
**)value
);
2341 printf("%s =", name
);
2342 if (gidlist
!= NULL
)
2346 for (i
= 1; i
<= (int)(gidlist
[0]); i
++)
2348 uschar
*name
= NULL
;
2349 gr
= getgrgid(gidlist
[i
]);
2350 if (gr
!= NULL
) name
= US gr
->gr_name
;
2351 if (name
!= NULL
) printf("%c%s", sep
, name
);
2352 else printf("%c%ld", sep
, (long int)(gidlist
[i
]));
2360 printf("%s = %s\n", name
, readconf_printtime(*((int *)value
)));
2366 int *list
= (int *)value
;
2367 printf("%s = ", name
);
2368 for (i
= 0; i
< list
[1]; i
++)
2369 printf("%s%s", (i
== 0)? "" : ":", readconf_printtime(list
[i
+2]));
2375 printf("%s%s\n", ((*((int *)value
)) & (1 << ((ol
->type
>> 16) & 31)))?
2379 case opt_expand_bool
:
2380 sprintf(CS name2
, "*expand_%.50s", name
);
2381 ol2
= find_option(name2
, oltop
, last
);
2382 if (ol2
!= NULL
&& ol2
->value
!= NULL
)
2384 void *value2
= ol2
->value
;
2385 if (options_block
!= NULL
)
2386 value2
= (void *)((uschar
*)options_block
+ (long int)value2
);
2387 s
= *((uschar
**)value2
);
2390 printf("%s = %s\n", name
, string_printing(s
));
2393 /* s == NULL => string not set; fall through */
2399 case opt_bool_verify
:
2401 printf("%s%s\n", (*((BOOL
*)value
))? "" : "no_", name
);
2408 /*************************************************
2409 * Print value from main configuration *
2410 *************************************************/
2412 /* This function, called as a result of encountering the -bP option,
2413 causes the value of any main configuration variable to be output if the
2414 second argument is NULL. There are some special values:
2416 all print all main configuration options
2417 configure_file print the name of the configuration file
2418 routers print the routers' configurations
2419 transports print the transports' configuration
2420 authenticators print the authenticators' configuration
2421 macros print the macros' configuration
2422 router_list print a list of router names
2423 transport_list print a list of transport names
2424 authenticator_list print a list of authentication mechanism names
2425 macro_list print a list of macro names
2426 +name print a named list item
2427 local_scan print the local_scan options
2429 If the second argument is not NULL, it must be one of "router", "transport",
2430 "authenticator" or "macro" in which case the first argument identifies the
2431 driver whose options are to be printed.
2434 name option name if type == NULL; else driver name
2435 type NULL or driver type name, as described above
2441 readconf_print(uschar
*name
, uschar
*type
)
2443 BOOL names_only
= FALSE
;
2445 optionlist
*ol2
= NULL
;
2446 driver_instance
*d
= NULL
;
2457 static uschar
*types
[] = { US
"address", US
"domain", US
"host",
2459 static tree_node
**anchors
[] = { &addresslist_anchor
, &domainlist_anchor
,
2460 &hostlist_anchor
, &localpartlist_anchor
};
2462 for (i
= 0; i
< 4; i
++)
2464 t
= tree_search(*(anchors
[i
]), name
+1);
2468 printf("%slist %s = %s\n", types
[i
], name
+1,
2469 ((namedlist_block
*)(t
->data
.ptr
))->string
);
2474 printf("no address, domain, host, or local part list called \"%s\" "
2475 "exists\n", name
+1);
2480 if (Ustrcmp(name
, "configure_file") == 0)
2482 printf("%s\n", CS config_main_filename
);
2486 if (Ustrcmp(name
, "all") == 0)
2488 for (ol
= optionlist_config
;
2489 ol
< optionlist_config
+ optionlist_config_size
; ol
++)
2491 if ((ol
->type
& opt_hidden
) == 0)
2492 print_ol(ol
, US ol
->name
, NULL
, optionlist_config
, optionlist_config_size
);
2497 if (Ustrcmp(name
, "local_scan") == 0)
2499 #ifndef LOCAL_SCAN_HAS_OPTIONS
2500 printf("local_scan() options are not supported\n");
2502 for (ol
= local_scan_options
;
2503 ol
< local_scan_options
+ local_scan_options_count
; ol
++)
2505 print_ol(ol
, US ol
->name
, NULL
, local_scan_options
,
2506 local_scan_options_count
);
2512 if (Ustrcmp(name
, "routers") == 0)
2517 else if (Ustrcmp(name
, "transports") == 0)
2519 type
= US
"transport";
2523 else if (Ustrcmp(name
, "authenticators") == 0)
2525 type
= US
"authenticator";
2529 else if (Ustrcmp(name
, "macros") == 0)
2535 else if (Ustrcmp(name
, "router_list") == 0)
2542 else if (Ustrcmp(name
, "transport_list") == 0)
2544 type
= US
"transport";
2549 else if (Ustrcmp(name
, "authenticator_list") == 0)
2551 type
= US
"authenticator";
2556 else if (Ustrcmp(name
, "macro_list") == 0)
2565 print_ol(find_option(name
, optionlist_config
, optionlist_config_size
),
2566 name
, NULL
, optionlist_config
, optionlist_config_size
);
2571 /* Handle the options for a router or transport. Skip options that are flagged
2572 as hidden. Some of these are options with names starting with '*', used for
2573 internal alternative representations of other options (which the printing
2574 function will sort out). Others are synonyms kept for backward compatibility.
2577 if (Ustrcmp(type
, "router") == 0)
2579 d
= (driver_instance
*)routers
;
2580 ol2
= optionlist_routers
;
2581 size
= optionlist_routers_size
;
2583 else if (Ustrcmp(type
, "transport") == 0)
2585 d
= (driver_instance
*)transports
;
2586 ol2
= optionlist_transports
;
2587 size
= optionlist_transports_size
;
2589 else if (Ustrcmp(type
, "authenticator") == 0)
2591 d
= (driver_instance
*)auths
;
2592 ol2
= optionlist_auths
;
2593 size
= optionlist_auths_size
;
2596 else if (Ustrcmp(type
, "macro") == 0)
2598 /* People store passwords in macros and they were previously not available
2599 for printing. So we have an admin_users restriction. */
2602 fprintf(stderr
, "exim: permission denied\n");
2605 for (m
= macros
; m
!= NULL
; m
= m
->next
)
2607 if (name
== NULL
|| Ustrcmp(name
, m
->name
) == 0)
2610 printf("%s\n", CS m
->name
);
2612 printf("%s=%s\n", CS m
->name
, CS m
->replacement
);
2618 printf("%s %s not found\n", type
, name
);
2624 for (; d
!= NULL
; d
= d
->next
) printf("%s\n", CS d
->name
);
2628 /* Either search for a given driver, or print all of them */
2630 for (; d
!= NULL
; d
= d
->next
)
2633 printf("\n%s %s:\n", d
->name
, type
);
2634 else if (Ustrcmp(d
->name
, name
) != 0) continue;
2636 for (ol
= ol2
; ol
< ol2
+ size
; ol
++)
2638 if ((ol
->type
& opt_hidden
) == 0)
2639 print_ol(ol
, US ol
->name
, d
, ol2
, size
);
2642 for (ol
= d
->info
->options
;
2643 ol
< d
->info
->options
+ *(d
->info
->options_count
); ol
++)
2645 if ((ol
->type
& opt_hidden
) == 0)
2646 print_ol(ol
, US ol
->name
, d
, d
->info
->options
, *(d
->info
->options_count
));
2648 if (name
!= NULL
) return;
2650 if (name
!= NULL
) printf("%s %s not found\n", type
, name
);
2655 /*************************************************
2656 * Read a named list item *
2657 *************************************************/
2659 /* This function reads a name and a list (i.e. string). The name is used to
2660 save the list in a tree, sorted by its name. Each entry also has a number,
2661 which can be used for caching tests, but if the string contains any expansion
2662 items other than $key, the number is set negative to inhibit caching. This
2663 mechanism is used for domain, host, and address lists that are referenced by
2667 anchorp points to the tree anchor
2668 numberp points to the current number for this tree
2669 max the maximum number permitted
2670 s the text of the option line, starting immediately after the name
2672 tname the name of the list type, for messages
2678 read_named_list(tree_node
**anchorp
, int *numberp
, int max
, uschar
*s
,
2681 BOOL forcecache
= FALSE
;
2684 namedlist_block
*nb
= store_get(sizeof(namedlist_block
));
2686 if (Ustrncmp(s
, "_cache", 6) == 0)
2693 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "unrecognized configuration line");
2695 if (*numberp
>= max
)
2696 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "too many named %ss (max is %d)\n",
2699 while (isspace(*s
)) s
++;
2701 while (isalnum(*s
) || *s
== '_') s
++;
2702 t
= store_get(sizeof(tree_node
) + s
-ss
);
2703 Ustrncpy(t
->name
, ss
, s
-ss
);
2705 while (isspace(*s
)) s
++;
2707 if (!tree_insertnode(anchorp
, t
))
2708 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
2709 "duplicate name \"%s\" for a named %s", t
->name
, tname
);
2712 nb
->number
= *numberp
;
2715 if (*s
++ != '=') log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
2716 "missing '=' after \"%s\"", t
->name
);
2717 while (isspace(*s
)) s
++;
2718 nb
->string
= read_string(s
, t
->name
);
2719 nb
->cache_data
= NULL
;
2721 /* Check the string for any expansions; if any are found, mark this list
2722 uncacheable unless the user has explicited forced caching. */
2724 if (!forcecache
&& Ustrchr(nb
->string
, '$') != NULL
) nb
->number
= -1;
2730 /*************************************************
2731 * Unpick data for a rate limit *
2732 *************************************************/
2734 /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four
2738 s string, in the form t,b,f,l
2739 where t is the threshold (integer)
2740 b is the initial delay (time)
2741 f is the multiplicative factor (fixed point)
2742 k is the maximum time (time)
2743 threshold where to store threshold
2744 base where to store base in milliseconds
2745 factor where to store factor in milliseconds
2746 limit where to store limit
2748 Returns: nothing (panics on error)
2752 unpick_ratelimit(uschar
*s
, int *threshold
, int *base
, double *factor
,
2755 uschar bstring
[16], lstring
[16];
2757 if (sscanf(CS s
, "%d, %15[0123456789smhdw.], %lf, %15s", threshold
, bstring
,
2758 factor
, lstring
) == 4)
2760 *base
= readconf_readtime(bstring
, 0, TRUE
);
2761 *limit
= readconf_readtime(lstring
, 0, TRUE
);
2762 if (*base
>= 0 && *limit
>= 0) return;
2764 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "malformed ratelimit data: %s", s
);
2770 /*************************************************
2771 * Read main configuration options *
2772 *************************************************/
2774 /* This function is the first to be called for configuration reading. It
2775 opens the configuration file and reads general configuration settings until
2776 it reaches the end of the configuration section. The file is then left open so
2777 that the remaining configuration data can subsequently be read if needed for
2780 The configuration file must be owned either by root or exim, and be writeable
2781 only by root or uid/gid exim. The values for Exim's uid and gid can be changed
2782 in the config file, so the test is done on the compiled in values. A slight
2783 anomaly, to be carefully documented.
2785 The name of the configuration file is taken from a list that is included in the
2786 binary of Exim. It can be altered from the command line, but if that is done,
2787 root privilege is immediately withdrawn unless the caller is root or exim.
2788 The first file on the list that exists is used.
2790 For use on multiple systems that share file systems, first look for a
2791 configuration file whose name has the current node name on the end. If that is
2792 not found, try the generic name. For really contorted configurations, that run
2793 multiple Exims with different uid settings, first try adding the effective uid
2794 before the node name. These complications are going to waste resources on most
2795 systems. Therefore they are available only when requested by compile-time
2802 struct stat statbuf
;
2803 uschar
*s
, *filename
;
2804 uschar
*list
= config_main_filelist
;
2806 /* Loop through the possible file names */
2808 while((filename
= string_nextinlist(&list
, &sep
, big_buffer
, big_buffer_size
))
2811 /* Cut out all the fancy processing unless specifically wanted */
2813 #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
2814 uschar
*suffix
= filename
+ Ustrlen(filename
);
2816 /* Try for the node-specific file if a node name exists */
2818 #ifdef CONFIGURE_FILE_USE_NODE
2820 if (uname(&uts
) >= 0)
2822 #ifdef CONFIGURE_FILE_USE_EUID
2823 sprintf(CS suffix
, ".%ld.%.256s", (long int)original_euid
, uts
.nodename
);
2824 config_file
= Ufopen(filename
, "rb");
2825 if (config_file
== NULL
)
2826 #endif /* CONFIGURE_FILE_USE_EUID */
2828 sprintf(CS suffix
, ".%.256s", uts
.nodename
);
2829 config_file
= Ufopen(filename
, "rb");
2832 #endif /* CONFIGURE_FILE_USE_NODE */
2834 /* Otherwise, try the generic name, possibly with the euid added */
2836 #ifdef CONFIGURE_FILE_USE_EUID
2837 if (config_file
== NULL
)
2839 sprintf(CS suffix
, ".%ld", (long int)original_euid
);
2840 config_file
= Ufopen(filename
, "rb");
2842 #endif /* CONFIGURE_FILE_USE_EUID */
2844 /* Finally, try the unadorned name */
2846 if (config_file
== NULL
)
2849 config_file
= Ufopen(filename
, "rb");
2851 #else /* if neither defined */
2853 /* This is the common case when the fancy processing is not included. */
2855 config_file
= Ufopen(filename
, "rb");
2858 /* If the file does not exist, continue to try any others. For any other
2859 error, break out (and die). */
2861 if (config_file
!= NULL
|| errno
!= ENOENT
) break;
2864 /* On success, save the name for verification; config_filename is used when
2865 logging configuration errors (it changes for .included files) whereas
2866 config_main_filename is the name shown by -bP. Failure to open a configuration
2867 file is a serious disaster. */
2869 if (config_file
!= NULL
)
2871 config_filename
= config_main_filename
= string_copy(filename
);
2875 if (filename
== NULL
)
2876 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "non-existent configuration file(s): "
2877 "%s", config_main_filelist
);
2879 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "%s", string_open_failed(errno
,
2880 "configuration file %s", filename
));
2883 /* Check the status of the file we have opened, if we have retained root
2884 privileges and the file isn't /dev/null (which *should* be 0666). */
2886 if (trusted_config
&& Ustrcmp(filename
, US
"/dev/null"))
2888 if (fstat(fileno(config_file
), &statbuf
) != 0)
2889 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "failed to stat configuration file %s",
2892 if ((statbuf
.st_uid
!= root_uid
/* owner not root */
2893 #ifdef CONFIGURE_OWNER
2894 && statbuf
.st_uid
!= config_uid
/* owner not the special one */
2897 (statbuf
.st_gid
!= root_gid
/* group not root & */
2898 #ifdef CONFIGURE_GROUP
2899 && statbuf
.st_gid
!= config_gid
/* group not the special one */
2901 && (statbuf
.st_mode
& 020) != 0) || /* group writeable */
2903 ((statbuf
.st_mode
& 2) != 0)) /* world writeable */
2905 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "Exim configuration file %s has the "
2906 "wrong owner, group, or mode", big_buffer
);
2909 /* Process the main configuration settings. They all begin with a lower case
2910 letter. If we see something starting with an upper case letter, it is taken as
2911 a macro definition. */
2913 while ((s
= get_config_line()) != NULL
)
2915 if (isupper(s
[0])) read_macro_assignment(s
);
2917 else if (Ustrncmp(s
, "domainlist", 10) == 0)
2918 read_named_list(&domainlist_anchor
, &domainlist_count
,
2919 MAX_NAMED_LIST
, s
+10, US
"domain list");
2921 else if (Ustrncmp(s
, "hostlist", 8) == 0)
2922 read_named_list(&hostlist_anchor
, &hostlist_count
,
2923 MAX_NAMED_LIST
, s
+8, US
"host list");
2925 else if (Ustrncmp(s
, US
"addresslist", 11) == 0)
2926 read_named_list(&addresslist_anchor
, &addresslist_count
,
2927 MAX_NAMED_LIST
, s
+11, US
"address list");
2929 else if (Ustrncmp(s
, US
"localpartlist", 13) == 0)
2930 read_named_list(&localpartlist_anchor
, &localpartlist_count
,
2931 MAX_NAMED_LIST
, s
+13, US
"local part list");
2934 (void) readconf_handle_option(s
, optionlist_config
, optionlist_config_size
,
2935 NULL
, US
"main option \"%s\" unknown");
2939 /* If local_sender_retain is set, local_from_check must be unset. */
2941 if (local_sender_retain
&& local_from_check
)
2942 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "both local_from_check and "
2943 "local_sender_retain are set; this combination is not allowed");
2945 /* If the timezone string is empty, set it to NULL, implying no TZ variable
2948 if (timezone_string
!= NULL
&& *timezone_string
== 0) timezone_string
= NULL
;
2950 /* The max retry interval must not be greater than 24 hours. */
2952 if (retry_interval_max
> 24*60*60) retry_interval_max
= 24*60*60;
2954 /* remote_max_parallel must be > 0 */
2956 if (remote_max_parallel
<= 0) remote_max_parallel
= 1;
2958 /* Save the configured setting of freeze_tell, so we can re-instate it at the
2959 start of a new SMTP message. */
2961 freeze_tell_config
= freeze_tell
;
2963 /* The primary host name may be required for expansion of spool_directory
2964 and log_file_path, so make sure it is set asap. It is obtained from uname(),
2965 but if that yields an unqualified value, make a FQDN by using gethostbyname to
2966 canonize it. Some people like upper case letters in their host names, so we
2967 don't force the case. */
2969 if (primary_hostname
== NULL
)
2973 if (uname(&uts
) < 0)
2974 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "uname() failed to yield host name");
2975 hostname
= US uts
.nodename
;
2977 if (Ustrchr(hostname
, '.') == NULL
)
2980 struct hostent
*hostdata
;
2983 if (!disable_ipv6
&& (dns_ipv4_lookup
== NULL
||
2984 match_isinlist(hostname
, &dns_ipv4_lookup
, 0, NULL
, NULL
, MCL_DOMAIN
,
2994 #if HAVE_GETIPNODEBYNAME
2996 hostdata
= getipnodebyname(CS hostname
, af
, 0, &error_num
);
2998 hostdata
= gethostbyname2(CS hostname
, af
);
3001 hostdata
= gethostbyname(CS hostname
);
3004 if (hostdata
!= NULL
)
3006 hostname
= US hostdata
->h_name
;
3010 if (af
== AF_INET
) break;
3015 primary_hostname
= string_copy(hostname
);
3018 /* Set up default value for smtp_active_hostname */
3020 smtp_active_hostname
= primary_hostname
;
3022 /* If spool_directory wasn't set in the build-time configuration, it must have
3023 got set above. Of course, writing to the log may not work if log_file_path is
3024 not set, but it will at least get to syslog or somewhere, with any luck. */
3026 if (*spool_directory
== 0)
3027 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "spool_directory undefined: cannot "
3030 /* Expand the spool directory name; it may, for example, contain the primary
3031 host name. Same comment about failure. */
3033 s
= expand_string(spool_directory
);
3035 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "failed to expand spool_directory "
3036 "\"%s\": %s", spool_directory
, expand_string_message
);
3037 spool_directory
= s
;
3039 /* Expand log_file_path, which must contain "%s" in any component that isn't
3040 the null string or "syslog". It is also allowed to contain one instance of %D
3041 or %M. However, it must NOT contain % followed by anything else. */
3043 if (*log_file_path
!= 0)
3046 int sep
= ':'; /* Fixed for log file path */
3047 s
= expand_string(log_file_path
);
3049 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "failed to expand log_file_path "
3050 "\"%s\": %s", log_file_path
, expand_string_message
);
3053 while ((sss
= string_nextinlist(&ss
,&sep
,big_buffer
,big_buffer_size
)) != NULL
)
3056 if (sss
[0] == 0 || Ustrcmp(sss
, "syslog") == 0) continue;
3057 t
= Ustrstr(sss
, "%s");
3059 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "log_file_path \"%s\" does not "
3060 "contain \"%%s\"", sss
);
3062 t
= Ustrchr(sss
, '%');
3065 if ((t
[1] != 'D' && t
[1] != 'M') || Ustrchr(t
+2, '%') != NULL
)
3066 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "log_file_path \"%s\" contains "
3067 "unexpected \"%%\" character", s
);
3074 /* Interpret syslog_facility into an integer argument for 'ident' param to
3075 openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the
3078 if (syslog_facility_str
!= NULL
)
3081 uschar
*s
= syslog_facility_str
;
3083 if ((Ustrlen(syslog_facility_str
) >= 4) &&
3084 (strncmpic(syslog_facility_str
, US
"log_", 4) == 0))
3087 for (i
= 0; i
< syslog_list_size
; i
++)
3089 if (strcmpic(s
, syslog_list
[i
].name
) == 0)
3091 syslog_facility
= syslog_list
[i
].value
;
3096 if (i
>= syslog_list_size
)
3098 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3099 "failed to interpret syslog_facility \"%s\"", syslog_facility_str
);
3103 /* Expand pid_file_path */
3105 if (*pid_file_path
!= 0)
3107 s
= expand_string(pid_file_path
);
3109 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "failed to expand pid_file_path "
3110 "\"%s\": %s", pid_file_path
, expand_string_message
);
3114 /* Set default value of process_log_path */
3116 if (process_log_path
== NULL
|| *process_log_path
=='\0')
3117 process_log_path
= string_sprintf("%s/exim-process.info", spool_directory
);
3119 /* Compile the regex for matching a UUCP-style "From_" line in an incoming
3122 regex_From
= regex_must_compile(uucp_from_pattern
, FALSE
, TRUE
);
3124 /* Unpick the SMTP rate limiting options, if set */
3126 if (smtp_ratelimit_mail
!= NULL
)
3128 unpick_ratelimit(smtp_ratelimit_mail
, &smtp_rlm_threshold
,
3129 &smtp_rlm_base
, &smtp_rlm_factor
, &smtp_rlm_limit
);
3132 if (smtp_ratelimit_rcpt
!= NULL
)
3134 unpick_ratelimit(smtp_ratelimit_rcpt
, &smtp_rlr_threshold
,
3135 &smtp_rlr_base
, &smtp_rlr_factor
, &smtp_rlr_limit
);
3138 /* The qualify domains default to the primary host name */
3140 if (qualify_domain_sender
== NULL
)
3141 qualify_domain_sender
= primary_hostname
;
3142 if (qualify_domain_recipient
== NULL
)
3143 qualify_domain_recipient
= qualify_domain_sender
;
3145 /* Setting system_filter_user in the configuration sets the gid as well if a
3146 name is given, but a numerical value does not. */
3148 if (system_filter_uid_set
&& !system_filter_gid_set
)
3150 struct passwd
*pw
= getpwuid(system_filter_uid
);
3152 log_write(0, LOG_MAIN
|LOG_PANIC_DIE
, "Failed to look up uid %ld",
3153 (long int)system_filter_uid
);
3154 system_filter_gid
= pw
->pw_gid
;
3155 system_filter_gid_set
= TRUE
;
3158 /* If the errors_reply_to field is set, check that it is syntactically valid
3159 and ensure it contains a domain. */
3161 if (errors_reply_to
!= NULL
)
3164 int start
, end
, domain
;
3165 uschar
*recipient
= parse_extract_address(errors_reply_to
, &errmess
,
3166 &start
, &end
, &domain
, FALSE
);
3168 if (recipient
== NULL
)
3169 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3170 "error in errors_reply_to (%s): %s", errors_reply_to
, errmess
);
3173 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3174 "errors_reply_to (%s) does not contain a domain", errors_reply_to
);
3177 /* If smtp_accept_queue or smtp_accept_max_per_host is set, then
3178 smtp_accept_max must also be set. */
3180 if (smtp_accept_max
== 0 &&
3181 (smtp_accept_queue
> 0 || smtp_accept_max_per_host
!= NULL
))
3182 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3183 "smtp_accept_max must be set if smtp_accept_queue or "
3184 "smtp_accept_max_per_host is set");
3186 /* Set up the host number if anything is specified. It is an expanded string
3187 so that it can be computed from the host name, for example. We do this last
3188 so as to ensure that everything else is set up before the expansion. */
3190 if (host_number_string
!= NULL
)
3193 uschar
*s
= expand_string(host_number_string
);
3194 long int n
= Ustrtol(s
, &end
, 0);
3195 while (isspace(*end
)) end
++;
3197 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3198 "localhost_number value is not a number: %s", s
);
3199 if (n
> LOCALHOST_MAX
)
3200 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3201 "localhost_number is greater than the maximum allowed value (%d)",
3207 /* If tls_verify_hosts is set, tls_verify_certificates must also be set */
3209 if ((tls_verify_hosts
!= NULL
|| tls_try_verify_hosts
!= NULL
) &&
3210 tls_verify_certificates
== NULL
)
3211 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3212 "tls_%sverify_hosts is set, but tls_verify_certificates is not set",
3213 (tls_verify_hosts
!= NULL
)? "" : "try_");
3215 /* If openssl_options is set, validate it */
3216 if (openssl_options
!= NULL
)
3219 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3220 "openssl_options is set but we're using GnuTLS");
3223 if (!(tls_openssl_options_parse(openssl_options
, &dummy
)))
3224 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3225 "openssl_options parse error: %s", openssl_options
);
3233 /*************************************************
3234 * Initialize one driver *
3235 *************************************************/
3237 /* This is called once the driver's generic options, if any, have been read.
3238 We can now find the driver, set up defaults for the private options, and
3239 unset any "set" bits in the private options table (which might have been
3240 set by another incarnation of the same driver).
3243 d pointer to driver instance block, with generic
3245 drivers_available vector of available drivers
3246 size_of_info size of each block in drivers_available
3247 class class of driver, for error message
3249 Returns: pointer to the driver info block
3252 static driver_info
*
3253 init_driver(driver_instance
*d
, driver_info
*drivers_available
,
3254 int size_of_info
, uschar
*class)
3258 for (dd
= drivers_available
; dd
->driver_name
[0] != 0;
3259 dd
= (driver_info
*)(((uschar
*)dd
) + size_of_info
))
3261 if (Ustrcmp(d
->driver_name
, dd
->driver_name
) == 0)
3264 int len
= dd
->options_len
;
3266 d
->options_block
= store_get(len
);
3267 memcpy(d
->options_block
, dd
->options_block
, len
);
3268 for (i
= 0; i
< *(dd
->options_count
); i
++)
3269 dd
->options
[i
].type
&= ~opt_set
;
3274 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3275 "%s %s: cannot find %s driver \"%s\"", class, d
->name
, class, d
->driver_name
);
3277 return NULL
; /* never obeyed */
3283 /*************************************************
3284 * Initialize driver list *
3285 *************************************************/
3287 /* This function is called for routers, transports, and authentication
3288 mechanisms. It reads the data from the current point in the configuration file
3289 up to the end of the section, and sets up a chain of instance blocks according
3290 to the file's contents. The file will already have been opened by a call to
3291 readconf_main, and must be left open for subsequent reading of further data.
3293 Any errors cause a panic crash. Note that the blocks with names driver_info and
3294 driver_instance must map the first portions of all the _info and _instance
3295 blocks for this shared code to work.
3298 class "router", "transport", or "authenticator"
3299 anchor &routers, &transports, &auths
3300 drivers_available available drivers
3301 size_of_info size of each info block
3302 instance_default points to default data for an instance
3303 instance_size size of instance block
3304 driver_optionlist generic option list
3305 driver_optionlist_count count of generic option list
3311 readconf_driver_init(
3313 driver_instance
**anchor
,
3314 driver_info
*drivers_available
,
3316 void *instance_default
,
3318 optionlist
*driver_optionlist
,
3319 int driver_optionlist_count
)
3321 driver_instance
**p
= anchor
;
3322 driver_instance
*d
= NULL
;
3325 while ((buffer
= get_config_line()) != NULL
)
3330 /* Read the first name on the line and test for the start of a new driver. A
3331 macro definition indicates the end of the previous driver. If this isn't the
3332 start of a new driver, the line will be re-read. */
3334 s
= readconf_readname(name
, sizeof(name
), buffer
);
3336 /* Handle macro definition, first finishing off the initialization of the
3337 previous driver, if any. */
3339 if (isupper(*name
) && *s
== '=')
3343 if (d
->driver_name
== NULL
)
3344 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3345 "no driver defined for %s \"%s\"", class, d
->name
);
3349 read_macro_assignment(buffer
);
3353 /* If the line starts with a name terminated by a colon, we are at the
3354 start of the definition of a new driver. The rest of the line must be
3361 /* Finish off initializing the previous driver. */
3365 if (d
->driver_name
== NULL
)
3366 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3367 "no driver defined for %s \"%s\"", class, d
->name
);
3371 /* Check that we haven't already got a driver of this name */
3373 for (d
= *anchor
; d
!= NULL
; d
= d
->next
)
3374 if (Ustrcmp(name
, d
->name
) == 0)
3375 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3376 "there are two %ss called \"%s\"", class, name
);
3378 /* Set up a new driver instance data block on the chain, with
3379 its default values installed. */
3381 d
= store_get(instance_size
);
3382 memcpy(d
, instance_default
, instance_size
);
3385 d
->name
= string_copy(name
);
3387 /* Clear out the "set" bits in the generic options */
3389 for (i
= 0; i
< driver_optionlist_count
; i
++)
3390 driver_optionlist
[i
].type
&= ~opt_set
;
3392 /* Check nothing more on this line, then do the next loop iteration. */
3394 while (isspace(*s
)) s
++;
3395 if (*s
!= 0) extra_chars_error(s
, US
"driver name ", name
, US
"");
3399 /* Not the start of a new driver. Give an error if we have not set up a
3400 current driver yet. */
3402 if (d
== NULL
) log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3403 "%s name missing", class);
3405 /* First look to see if this is a generic option; if it is "driver",
3406 initialize the driver. If is it not a generic option, we can look for a
3407 private option provided that the driver has been previously set up. */
3409 if (readconf_handle_option(buffer
, driver_optionlist
,
3410 driver_optionlist_count
, d
, NULL
))
3412 if (d
->info
== NULL
&& d
->driver_name
!= NULL
)
3413 init_driver(d
, drivers_available
, size_of_info
, class);
3416 /* Handle private options - pass the generic block because some may
3417 live therein. A flag with each option indicates if it is in the public
3420 else if (d
->info
!= NULL
)
3422 readconf_handle_option(buffer
, d
->info
->options
,
3423 *(d
->info
->options_count
), d
, US
"option \"%s\" unknown");
3426 /* The option is not generic and the driver name has not yet been given. */
3428 else log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "option \"%s\" unknown "
3429 "(\"driver\" must be specified before any private options)", name
);
3432 /* Run the initialization function for the final driver. */
3436 if (d
->driver_name
== NULL
)
3437 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
,
3438 "no driver defined for %s \"%s\"", class, d
->name
);
3445 /*************************************************
3446 * Check driver dependency *
3447 *************************************************/
3449 /* This function is passed a driver instance and a string. It checks whether
3450 any of the string options for the driver contains the given string as an
3454 d points to a driver instance block
3455 s the string to search for
3457 Returns: TRUE if a dependency is found
3461 readconf_depends(driver_instance
*d
, uschar
*s
)
3463 int count
= *(d
->info
->options_count
);
3467 for (ol
= d
->info
->options
; ol
< d
->info
->options
+ count
; ol
++)
3469 void *options_block
;
3471 int type
= ol
->type
& opt_mask
;
3472 if (type
!= opt_stringptr
) continue;
3473 options_block
= ((ol
->type
& opt_public
) == 0)? d
->options_block
: (void *)d
;
3474 value
= *(uschar
**)((uschar
*)options_block
+ (long int)(ol
->value
));
3475 if (value
!= NULL
&& (ss
= Ustrstr(value
, s
)) != NULL
)
3477 if (ss
<= value
|| (ss
[-1] != '$' && ss
[-1] != '{') ||
3478 isalnum(ss
[Ustrlen(s
)])) continue;
3479 DEBUG(D_transport
) debug_printf("driver %s: \"%s\" option depends on %s\n",
3480 d
->name
, ol
->name
, s
);
3485 DEBUG(D_transport
) debug_printf("driver %s does not depend on %s\n", d
->name
, s
);
3492 /*************************************************
3493 * Decode an error type for retries *
3494 *************************************************/
3496 /* This function is global because it is also called from the main
3497 program when testing retry information. It decodes strings such as "quota_7d"
3498 into numerical error codes.
3501 pp points to start of text
3502 p points past end of text
3503 basic_errno points to an int to receive the main error number
3504 more_errno points to an int to receive the secondary error data
3506 Returns: NULL if decoded correctly; else points to error text
3510 readconf_retry_error(uschar
*pp
, uschar
*p
, int *basic_errno
, int *more_errno
)
3514 while (q
< p
&& *q
!= '_') q
++;
3517 if (len
== 5 && strncmpic(pp
, US
"quota", len
) == 0)
3519 *basic_errno
= ERRNO_EXIMQUOTA
;
3520 if (q
!= p
&& (*more_errno
= readconf_readtime(q
+1, *p
, FALSE
)) < 0)
3521 return US
"bad time value";
3524 else if (len
== 7 && strncmpic(pp
, US
"refused", len
) == 0)
3526 *basic_errno
= ECONNREFUSED
;
3529 if (strncmpic(q
+1, US
"MX", p
-q
-1) == 0) *more_errno
= 'M';
3530 else if (strncmpic(q
+1, US
"A", p
-q
-1) == 0) *more_errno
= 'A';
3531 else return US
"A or MX expected after \"refused\"";
3535 else if (len
== 7 && strncmpic(pp
, US
"timeout", len
) == 0)
3537 *basic_errno
= ETIMEDOUT
;
3541 int xlen
= p
- q
- 1;
3544 static uschar
*extras
[] =
3545 { US
"A", US
"MX", US
"connect", US
"connect_A", US
"connect_MX" };
3546 static int values
[] =
3547 { 'A', 'M', RTEF_CTOUT
, RTEF_CTOUT
|'A', RTEF_CTOUT
|'M' };
3549 for (i
= 0; i
< sizeof(extras
)/sizeof(uschar
*); i
++)
3551 if (strncmpic(x
, extras
[i
], xlen
) == 0)
3553 *more_errno
= values
[i
];
3558 if (i
>= sizeof(extras
)/sizeof(uschar
*))
3560 if (strncmpic(x
, US
"DNS", xlen
) == 0)
3562 log_write(0, LOG_MAIN
|LOG_PANIC
, "\"timeout_dns\" is no longer "
3563 "available in retry rules (it has never worked) - treated as "
3566 else return US
"\"A\", \"MX\", or \"connect\" expected after \"timeout\"";
3571 else if (strncmpic(pp
, US
"mail_4", 6) == 0 ||
3572 strncmpic(pp
, US
"rcpt_4", 6) == 0 ||
3573 strncmpic(pp
, US
"data_4", 6) == 0)
3576 int x
= 255; /* means "any 4xx code" */
3577 if (p
!= pp
+ 8) bad
= TRUE
; else
3579 int a
= pp
[6], b
= pp
[7];
3583 if (isdigit(b
)) x
+= b
- '0';
3584 else if (b
== 'x') x
+= 100;
3587 else if (a
!= 'x' || b
!= 'x') bad
= TRUE
;
3591 return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where "
3592 "x is literal and d is any digit", pp
);
3594 *basic_errno
= (*pp
== 'm')? ERRNO_MAIL4XX
:
3595 (*pp
== 'r')? ERRNO_RCPT4XX
: ERRNO_DATA4XX
;
3596 *more_errno
= x
<< 8;
3599 else if (len
== 4 && strncmpic(pp
, US
"auth", len
) == 0 &&
3600 strncmpic(q
+1, US
"failed", p
-q
-1) == 0)
3601 *basic_errno
= ERRNO_AUTHFAIL
;
3603 else if (strncmpic(pp
, US
"lost_connection", p
- pp
) == 0)
3604 *basic_errno
= ERRNO_SMTPCLOSED
;
3606 else if (strncmpic(pp
, US
"tls_required", p
- pp
) == 0)
3607 *basic_errno
= ERRNO_TLSREQUIRED
;
3609 else if (len
!= 1 || Ustrncmp(pp
, "*", 1) != 0)
3610 return string_sprintf("unknown or malformed retry error \"%.*s\"", p
-pp
, pp
);
3618 /*************************************************
3619 * Read retry information *
3620 *************************************************/
3622 /* Each line of retry information contains:
3624 . A domain name pattern or an address pattern;
3626 . An error name, possibly with additional data, or *;
3628 . An optional sequence of retry items, each consisting of an identifying
3629 letter, a cutoff time, and optional parameters.
3631 All this is decoded and placed into a control block. */
3634 /* Subroutine to read an argument, preceded by a comma and terminated
3635 by comma, semicolon, whitespace, or newline. The types are: 0 = time value,
3636 1 = fixed point number (returned *1000).
3639 paddr pointer to pointer to current character; updated
3640 type 0 => read a time; 1 => read a fixed point number
3642 Returns: time in seconds or fixed point number * 1000
3646 retry_arg(uschar
**paddr
, int type
)
3651 if (*p
++ != ',') log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "comma expected");
3653 while (isspace(*p
)) p
++;
3655 while (isalnum(*p
) || (type
== 1 && *p
== '.')) p
++;
3657 if (*p
!= 0 && !isspace(*p
) && *p
!= ',' && *p
!= ';')
3658 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "comma or semicolon expected");
3664 return readconf_readtime(pp
, *p
, FALSE
);
3666 return readconf_readfixed(pp
, *p
);
3668 return 0; /* Keep picky compilers happy */
3671 /* The function proper */
3674 readconf_retries(void)
3676 retry_config
**chain
= &retries
;
3680 while ((p
= get_config_line()) != NULL
)
3682 retry_rule
**rchain
;
3685 next
= store_get(sizeof(retry_config
));
3688 chain
= &(next
->next
);
3689 next
->basic_errno
= next
->more_errno
= 0;
3690 next
->senders
= NULL
;
3692 rchain
= &(next
->rules
);
3694 next
->pattern
= string_dequote(&p
);
3695 while (isspace(*p
)) p
++;
3697 while (mac_isgraph(*p
)) p
++;
3698 if (p
- pp
<= 0) log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3699 "missing error type");
3701 /* Test error names for things we understand. */
3703 if ((error
= readconf_retry_error(pp
, p
, &(next
->basic_errno
),
3704 &(next
->more_errno
))) != NULL
)
3705 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "%s", error
);
3707 /* There may be an optional address list of senders to be used as another
3708 constraint on the rule. This was added later, so the syntax is a bit of a
3709 fudge. Anything that is not a retry rule starting "F," or "G," is treated as
3712 while (isspace(*p
)) p
++;
3713 if (Ustrncmp(p
, "senders", 7) == 0)
3716 while (isspace(*p
)) p
++;
3717 if (*p
++ != '=') log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3718 "\"=\" expected after \"senders\" in retry rule");
3719 while (isspace(*p
)) p
++;
3720 next
->senders
= string_dequote(&p
);
3723 /* Now the retry rules. Keep the maximum timeout encountered. */
3725 while (isspace(*p
)) p
++;
3729 retry_rule
*rule
= store_get(sizeof(retry_rule
));
3731 rchain
= &(rule
->next
);
3733 rule
->rule
= toupper(*p
++);
3734 rule
->timeout
= retry_arg(&p
, 0);
3735 if (rule
->timeout
> retry_maximum_timeout
)
3736 retry_maximum_timeout
= rule
->timeout
;
3740 case 'F': /* Fixed interval */
3741 rule
->p1
= retry_arg(&p
, 0);
3744 case 'G': /* Geometrically increasing intervals */
3745 case 'H': /* Ditto, but with randomness */
3746 rule
->p1
= retry_arg(&p
, 0);
3747 rule
->p2
= retry_arg(&p
, 1);
3751 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "unknown retry rule letter");
3755 if (rule
->timeout
<= 0 || rule
->p1
<= 0 ||
3756 (rule
->rule
!= 'F' && rule
->p2
< 1000))
3757 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3758 "bad parameters for retry rule");
3760 while (isspace(*p
)) p
++;
3764 while (isspace(*p
)) p
++;
3767 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "semicolon expected");
3774 /*************************************************
3775 * Initialize authenticators *
3776 *************************************************/
3778 /* Read the authenticators section of the configuration file.
3787 auth_instance
*au
, *bu
;
3788 readconf_driver_init(US
"authenticator",
3789 (driver_instance
**)(&auths
), /* chain anchor */
3790 (driver_info
*)auths_available
, /* available drivers */
3791 sizeof(auth_info
), /* size of info block */
3792 &auth_defaults
, /* default values for generic options */
3793 sizeof(auth_instance
), /* size of instance block */
3794 optionlist_auths
, /* generic options */
3795 optionlist_auths_size
);
3797 for (au
= auths
; au
!= NULL
; au
= au
->next
)
3799 if (au
->public_name
== NULL
)
3800 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
, "no public name specified for "
3801 "the %s authenticator", au
->name
);
3802 for (bu
= au
->next
; bu
!= NULL
; bu
= bu
->next
)
3804 if (strcmpic(au
->public_name
, bu
->public_name
) == 0)
3806 if ((au
->client
&& bu
->client
) || (au
->server
&& bu
->server
))
3807 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG
, "two %s authenticators "
3808 "(%s and %s) have the same public name (%s)",
3809 (au
->client
)? US
"client" : US
"server", au
->name
, bu
->name
,
3819 /*************************************************
3820 * Read ACL information *
3821 *************************************************/
3823 /* If this run of Exim is not doing something that involves receiving a
3824 message, we can just skip over the ACL information. No need to parse it.
3826 First, we have a function for acl_read() to call back to get the next line. We
3827 need to remember the line we passed, because at the end it will contain the
3828 name of the next ACL. */
3830 static uschar
*acl_line
;
3835 acl_line
= get_config_line();
3840 /* Now the main function:
3843 skip TRUE when this Exim process is doing something that will
3844 not need the ACL data
3850 readconf_acl(BOOL skip
)
3854 /* Not receiving messages, don't need to parse the ACL data */
3858 DEBUG(D_acl
) debug_printf("skipping ACL configuration - not needed\n");
3859 while ((p
= get_config_line()) != NULL
);
3863 /* Read each ACL and add it into the tree. Macro (re)definitions are allowed
3866 acl_line
= get_config_line();
3868 while(acl_line
!= NULL
)
3874 p
= readconf_readname(name
, sizeof(name
), acl_line
);
3875 if (isupper(*name
) && *p
== '=')
3877 read_macro_assignment(acl_line
);
3878 acl_line
= get_config_line();
3882 if (*p
!= ':' || name
[0] == 0)
3883 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "missing or malformed ACL name");
3885 node
= store_get(sizeof(tree_node
) + Ustrlen(name
));
3886 Ustrcpy(node
->name
, name
);
3887 if (!tree_insertnode(&acl_anchor
, node
))
3888 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3889 "there are two ACLs called \"%s\"", name
);
3891 node
->data
.ptr
= acl_read(acl_callback
, &error
);
3893 if (node
->data
.ptr
== NULL
&& error
!= NULL
)
3894 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "error in ACL: %s", error
);
3900 /*************************************************
3901 * Read configuration for local_scan() *
3902 *************************************************/
3904 /* This function is called after "begin local_scan" is encountered in the
3905 configuration file. If the local_scan() function allows for configuration
3906 options, we can process them. Otherwise, we expire in a panic.
3913 local_scan_init(void)
3915 #ifndef LOCAL_SCAN_HAS_OPTIONS
3916 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
, "local_scan() options not supported: "
3917 "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)");
3921 while ((p
= get_config_line()) != NULL
)
3923 (void) readconf_handle_option(p
, local_scan_options
, local_scan_options_count
,
3924 NULL
, US
"local_scan option \"%s\" unknown");
3931 /*************************************************
3932 * Read rest of configuration (after main) *
3933 *************************************************/
3935 /* This function reads the rest of the runtime configuration, after the main
3936 configuration. It is called only when actually needed. Each subsequent section
3937 of the configuration starts with a line of the form
3941 where the name is "routers", "transports", etc. A section is terminated by
3942 hitting the next "begin" line, and the next name is left in next_section.
3943 Because it may confuse people as to whether the names are singular or plural,
3944 we add "s" if it's missing. There is always enough room in next_section for
3945 this. This function is basically just a switch.
3948 skip_acl TRUE if ACL information is not needed
3953 static uschar
*section_list
[] = {
3963 readconf_rest(BOOL skip_acl
)
3967 while(next_section
[0] != 0)
3971 int last
= sizeof(section_list
) / sizeof(uschar
*);
3973 int n
= Ustrlen(next_section
);
3975 if (tolower(next_section
[n
-1]) != 's') Ustrcpy(next_section
+n
, "s");
3979 int c
= strcmpic(next_section
, section_list
[mid
]);
3981 if (c
> 0) first
= mid
+ 1; else last
= mid
;
3983 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3984 "\"%.*s\" is not a known configuration section name", n
, next_section
);
3985 mid
= (last
+ first
)/2;
3989 if (((had
^= bit
) & bit
) == 0)
3990 log_write(0, LOG_PANIC_DIE
|LOG_CONFIG_IN
,
3991 "\"%.*s\" section is repeated in the configuration file", n
,
3996 case 0: readconf_acl(skip_acl
); break;
3997 case 1: auths_init(); break;
3998 case 2: local_scan_init(); break;
3999 case 3: readconf_retries(); break;
4000 case 4: readconf_rewrites(); break;
4001 case 5: route_init(); break;
4002 case 6: transport_init(); break;
4006 (void)fclose(config_file
);
4009 /* End of readconf.c */