src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.35 2006/02/13 12:02:59 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2006 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* Almost all the global variables are defined together in this one header, so
  11 that they are easy to find. However, those that are visible during the
  12 compilation of the local_scan() function are defined separately in the
  13 local_scan.h header file. */
  14
  15 /* First put any specials that are required for some operating systems. */
  16
  17 #ifdef NEED_H_ERRNO
  18 extern int h_errno;
  19 #endif
  20
  21 /* Now things that are present only when configured. */
  22
  23 #ifdef EXIM_PERL
  24 extern uschar *opt_perl_startup;       /* Startup code for Perl interpreter */
  25 extern BOOL    opt_perl_at_start;      /* Start Perl interpreter at start */
  26 extern BOOL    opt_perl_started;       /* Set once interpreter started */
  27 #endif
  28
  29 #ifdef EXPAND_DLFUNC
  30 extern tree_node *dlobj_anchor;        /* Tree of dynamically-loaded objects */
  31 #endif
  32
  33 #ifdef LOOKUP_IBASE
  34 extern uschar *ibase_servers;
  35 #endif
  36
  37 #ifdef LOOKUP_LDAP
  38 extern uschar *eldap_default_servers;  /* List of default servers */
  39 extern int     eldap_version;          /* LDAP version */
  40 #endif
  41
  42 #ifdef LOOKUP_MYSQL
  43 extern uschar *mysql_servers;          /* List of servers and connect info */
  44 #endif
  45
  46 #ifdef LOOKUP_ORACLE
  47 extern uschar *oracle_servers;         /* List of servers and connect info */
  48 #endif
  49
  50 #ifdef LOOKUP_PGSQL
  51 extern uschar *pgsql_servers;          /* List of servers and connect info */
  52 #endif
  53
  54 #ifdef LOOKUP_SQLITE
  55 extern int     sqlite_lock_timeout;    /* Internal lock waiting timeout */
  56 #endif
  57
  58 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  59 extern BOOL    move_frozen_messages;   /* Get them out of the normal directory */
  60 #endif
  61
  62 /* These variables are outside the #ifdef because it keeps the code less
  63 cluttered in several places (e.g. during logging) if we can always refer to
  64 them. Also, the tls_ variables are now always visible. */
  65
  66 extern int     tls_active;             /* fd/socket when in a TLS session */
  67 extern BOOL    tls_certificate_verified; /* Client certificate verified */
  68 extern uschar *tls_cipher;             /* Cipher used */
  69 extern BOOL    tls_on_connect;         /* For older MTAs that don't STARTTLS */
  70 extern uschar *tls_on_connect_ports;   /* Ports always tls-on-connect */
  71 extern uschar *tls_peerdn;             /* DN from peer */
  72
  73 #ifdef SUPPORT_TLS
  74 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
  75 extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */
  76 extern uschar *tls_certificate;        /* Certificate file */
  77 extern uschar *tls_crl;                /* CRL File */
  78 extern uschar *tls_dhparam;            /* DH param file */
  79 extern BOOL    tls_offered;            /* Server offered TLS */
  80 extern uschar *tls_privatekey;         /* Private key file */
  81 extern BOOL    tls_remember_esmtp;     /* For YAEB */
  82 extern uschar *tls_require_ciphers;    /* So some can be avoided */
  83 extern uschar *tls_try_verify_hosts;   /* Optional client verification */
  84 extern uschar *tls_verify_certificates;/* Path for certificates to check */
  85 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
  86 #endif
  87
  88
  89 /* Input-reading functions for messages, so we can use special ones for
  90 incoming TCP/IP. */
  91
  92 extern int (*receive_getc)(void);
  93 extern int (*receive_ungetc)(int);
  94 extern int (*receive_feof)(void);
  95 extern int (*receive_ferror)(void);
  96
  97
  98 /* For clearing, saving, restoring address expansion variables. We have to have
  99 the size of this vector set explicitly, because it is referenced from more than
 100 one module. */
 101
 102 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
 103
 104 /* General global variables */
 105
 106 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
 107 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 108 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 109 #ifdef WITH_CONTENT_SCAN
 110 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */
 111 #endif
 112 extern uschar *acl_smtp_auth;          /* ACL run for AUTH */
 113 extern uschar *acl_smtp_connect;       /* ACL run on SMTP connection */
 114 extern uschar *acl_smtp_data;          /* ACL run after DATA received */
 115 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 116 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 117 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 118 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 119 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 120 #ifdef WITH_CONTENT_SCAN
 121 extern uschar *acl_smtp_mime;          /* ACL run after DATA, before acl_smtp_data, for each MIME part */
 122 #endif
 123 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 124 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 125 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 126 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 127 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 128 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 129 extern uschar *acl_var[ACL_CVARS+ACL_MVARS]; /* User ACL variables */
 130 extern uschar *acl_verify_message;     /* User message for verify failure */
 131 extern header_line *acl_warn_headers;  /* Warning headers added by ACL */
 132 extern string_item *acl_warn_logged;   /* Logged lines */
 133 extern int     acl_wherecodes[];       /* Response codes for ACL fails */
 134 extern uschar *acl_wherenames[];       /* Names for messages */
 135 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 136 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 137 extern address_item *addr_duplicate;   /* Duplicate address list */
 138 extern address_item address_defaults;  /* Default data for address item */
 139 extern uschar *address_file;           /* Name of file when delivering to one */
 140 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 141 extern BOOL    address_test_mode;      /* True for -bt */
 142 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 143 extern int     addresslist_count;      /* Number defined */
 144 extern gid_t  *admin_groups;           /* List of admin groups */
 145 extern BOOL    admin_user;             /* True if caller can do admin */
 146 extern BOOL    allow_domain_literals;  /* As it says */
 147 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 148 extern BOOL    allow_unqualified_recipient; /* As it says */
 149 extern BOOL    allow_unqualified_sender; /* Ditto */
 150 extern BOOL    allow_utf8_domains;     /* For experimenting */
 151 extern uschar *authenticated_id;       /* ID that was authenticated */
 152 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 153 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 154 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 155 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 156 extern auth_instance *auths;           /* Chain of instantiated auths */
 157 extern auth_instance auth_defaults;    /* Default values */
 158 extern uschar *auth_defer_msg;         /* Error message for log */
 159 extern uschar *auth_defer_user_msg;    /* Error message for user */
 160 extern uschar *auth_vars[];            /* $authn variables */
 161 extern int     auto_thaw;              /* Auto-thaw interval */
 162 #ifdef WITH_CONTENT_SCAN
 163 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 164 #endif
 165
 166 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 167 extern uschar *base62_chars;           /* Table of base-62 characters */
 168 extern uschar *bi_command;             /* Command for -bi option */
 169 extern uschar *big_buffer;             /* Used for various temp things */
 170 extern int     big_buffer_size;        /* Current size (can expand) */
 171 #ifdef EXPERIMENTAL_BRIGHTMAIL
 172 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 173 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 174 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 175 extern uschar *bmi_config_file;        /* Brightmail config file */
 176 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 177 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 178 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 179 #endif
 180 extern int     body_linecount;         /* Line count in body */
 181 extern int     body_zerocount;         /* Binary zero count in body */
 182 extern uschar *bounce_message_file;    /* Template file */
 183 extern uschar *bounce_message_text;    /* One-liner */
 184 extern uschar *bounce_recipient;       /* When writing an errmsg */
 185 extern BOOL    bounce_return_body;     /* Include body in returned message */
 186 extern BOOL    bounce_return_message;  /* Include message in bounce */
 187 extern int     bounce_return_size_limit; /* Max amount to return */
 188 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 189 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 190
 191 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 192 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 193 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 194 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 195 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 196 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 197 extern int     check_log_inodes;       /* Minimum for message acceptance */
 198 extern int     check_log_space;        /* Minimum for message acceptance */
 199 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 200 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 201 extern int     check_spool_space;      /* Minimum for message acceptance */
 202 extern int     clmacro_count;          /* Number of command line macros */
 203 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 204 extern int     connection_max_messages;/* Max down one SMTP connection */
 205 extern BOOL    config_changed;         /* True if -C used */
 206 extern FILE   *config_file;            /* Configuration file */
 207 extern uschar *config_filename;        /* Configuration file name */
 208 #ifdef CONFIGURE_GROUP
 209 extern gid_t   config_gid;             /* Additional group owner */
 210 #endif
 211 extern int     config_lineno;          /* Line number */
 212 extern uschar *config_main_filelist;   /* List of possible config files */
 213 extern uschar *config_main_filename;   /* File name actually used */
 214 #ifdef CONFIGURE_OWNER
 215 extern uid_t   config_uid;             /* Additional owner */
 216 #endif
 217 extern uschar *continue_hostname;      /* Host for continued delivery */
 218 extern uschar *continue_host_address;  /* IP address for ditto */
 219 extern BOOL    continue_more;          /* Flag more addresses waiting */
 220 extern int     continue_sequence;      /* Sequence num for continued delivery */
 221 extern uschar *continue_transport;     /* Transport for continued delivery */
 222
 223 extern uschar *csa_status;             /* Client SMTP Authorization result */
 224
 225 extern BOOL    daemon_listen;          /* True if listening required */
 226 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 227 extern int     daemon_startup_retries; /* Number of times to retry */
 228 extern int     daemon_startup_sleep;   /* Sleep between retries */
 229 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 230 extern int     debug_fd;               /* The fd for debug_file */
 231 extern FILE   *debug_file;             /* Where to write debugging info */
 232 extern bit_table debug_options[];      /* Table of debug options */
 233 extern int     debug_options_count;    /* Size of table */
 234 extern int     delay_warning[];        /* Times between warnings */
 235 extern uschar *delay_warning_condition; /* Condition string for warnings */
 236 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 237
 238 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 239 extern int     deliver_datafile;       /* FD for data part of message */
 240 extern uschar *deliver_domain;         /* The local domain for delivery */
 241 extern uschar *deliver_domain_data;    /* From domain lookup */
 242 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 243 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 244 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 245 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 246 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 247 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 248 extern int     deliver_frozen_at;      /* Time of freezing */
 249 extern uschar *deliver_home;           /* Home directory for pipes */
 250 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 251                                        /* Remote host for filter */
 252 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 253 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 254 extern ino_t   deliver_inode;          /* Inode for appendfile */
 255 extern uschar *deliver_localpart;      /* The local part for delivery */
 256 extern uschar *deliver_localpart_data; /* From local part lookup */
 257 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 258 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 259 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 260 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 261 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 262 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 263 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 264 extern int     deliver_queue_load_max; /* Different value for queue running */
 265 extern address_item *deliver_recipients; /* Current set of addresses */
 266 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 267 extern BOOL    deliver_selectstring_regex; /* String is regex */
 268 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 269 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 270 #ifdef WITH_OLD_DEMIME
 271 extern int     demime_errorlevel;      /* Severity of MIME error */
 272 extern int     demime_ok;              /* Nonzero if message has been demimed */
 273 extern uschar *demime_reason;          /* Reason for broken MIME container */
 274 #endif
 275 extern BOOL    disable_ipv6;           /* Don't do any IPv6 things */
 276 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 277
 278 #ifdef EXPERIMENTAL_DOMAINKEYS
 279 extern uschar *dk_signing_domain;      /* Domain used for signing a message. */
 280 extern uschar *dk_signing_selector;    /* Selector used for signing a message. */
 281 extern int     dk_do_verify;           /* DK verification switch. Set with ACL control statement. */
 282 #endif
 283
 284 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 285 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 286 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 287 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 288 extern int     dns_retrans;            /* Retransmission time setting */
 289 extern int     dns_retry;              /* Number of retries */
 290 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 291 extern uschar *dnslist_text;           /* DNS (black) list text message */
 292 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 293 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 294 extern int     domainlist_count;       /* Number defined */
 295 extern BOOL    dont_deliver;           /* TRUE for -N option */
 296 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 297
 298 /* This option is now a no-opt, retained for compatibility */
 299 extern BOOL    drop_cr;                /* For broken local MUAs */
 300
 301 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 302 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 303 extern int     errno_quota;            /* Quota errno in this OS */
 304 extern int     error_handling;         /* Error handling style */
 305 extern uschar *errors_copy;            /* For taking copies of errors */
 306 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 307 extern int     errors_sender_rc;       /* Return after message to sender*/
 308 extern gid_t   exim_gid;               /* To be used with exim_uid */
 309 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 310 extern uschar *exim_path;              /* Path to exec exim */
 311 extern uid_t   exim_uid;               /* Non-root uid for exim */
 312 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 313 extern int     expand_forbid;          /* RDO flags for forbidding things */
 314 extern int     expand_nlength[];       /* Lengths of numbered strings */
 315 extern int     expand_nmax;            /* Max numerical value */
 316 extern uschar *expand_nstring[];       /* Numbered strings */
 317 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 318 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 319 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 320
 321 extern int     fake_response;          /* Fake FAIL or DEFER response to data */
 322 extern uschar *fake_response_text;     /* User defined message for the above. Default is in globals.c. */
 323 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 324 extern BOOL    filter_running;         /* TRUE while running a filter */
 325 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 326 extern int     filter_test;            /* Filter test type */
 327 extern uschar *filter_test_sfile;      /* System filter test file */
 328 extern uschar *filter_test_ufile;      /* User filter test file */
 329 extern uschar *filter_thisaddress;     /* For address looping */
 330 extern int     finduser_retries;       /* Retry count for getpwnam() */
 331 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 332 #ifdef WITH_OLD_DEMIME
 333 extern uschar *found_extension;        /* demime acl condition: file extension found */
 334 #endif
 335 extern uschar *freeze_tell;            /* Message on (some) freezings */
 336 extern uschar *freeze_tell_config;     /* The configured setting */
 337 extern uschar *fudged_queue_times;     /* For use in test harness */
 338
 339 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 340 extern uschar *gecos_pattern;          /* Pattern to match */
 341 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 342
 343 extern int     header_insert_maxlen;   /* Max for inserting headers */
 344 extern int     header_maxsize;         /* Max total length for header */
 345 extern int     header_line_maxsize;    /* Max for an individual line */
 346 extern header_name header_names[];     /* Table of header names */
 347 extern int     header_names_size;      /* Number of entries */
 348 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 349 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 350 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 351 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 352 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 353 extern BOOL    helo_verified;          /* True if HELO verified */
 354 extern BOOL    helo_verify_failed;     /* True if attempt failed */
 355 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 356 extern uschar *hex_digits;             /* Used in several places */
 357 extern uschar *hold_domains;           /* Hold up deliveries to these */
 358 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 359 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 360 extern uschar *host_data;              /* Obtained from lookup in ACL */
 361 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 362 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 363 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 364 extern uschar *host_lookup_order;      /* Order of host lookup types */
 365 extern uschar *host_lookup_msg;        /* Text for why it failed */
 366 extern int     host_number;            /* For sharing spools */
 367 extern uschar *host_number_string;     /* For expanding */
 368 extern uschar *host_reject_connection; /* Reject these hosts */
 369 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 370 extern int     hostlist_count;         /* Number defined */
 371 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 372 extern uschar *hosts_treat_as_local;   /* For routing */
 373
 374 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 375 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 376 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 377 extern BOOL    is_inetd;               /* True for inetd calls */
 378
 379 extern int     journal_fd;             /* Fd for journal file */
 380
 381 extern int     keep_malformed;         /* Time to keep malformed messages */
 382
 383 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 384 extern int     load_average;           /* Most recently read load average */
 385 extern BOOL    local_error_message;    /* True if handling one of these */
 386 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 387 extern uschar *local_from_prefix;      /* Permitted prefixes */
 388 extern uschar *local_from_suffix;      /* Permitted suffixes */
 389 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 390 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 391 extern optionlist local_scan_options[];/* Option list for local_scan() */
 392 extern int     local_scan_options_count; /* Size of the list */
 393 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 394 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 395 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 396 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 397 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 398 extern int     localpartlist_count;    /* Number defined */
 399 extern uschar *log_buffer;             /* For constructing log entries */
 400 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 401 extern uschar *log_file_path;          /* If unset, use default */
 402 extern bit_table log_options[];        /* Table of options */
 403 extern int     log_options_count;      /* Size of table */
 404 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 405 extern uschar *log_selector_string;    /* As supplied in the config */
 406 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 407 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 408 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 409 extern uschar *login_sender_address;   /* The actual sender address */
 410 extern lookup_info lookup_list[];      /* Vector of available lookups */
 411 extern int     lookup_list_count;      /* Number of entries in the list */
 412 extern int     lookup_open_max;        /* Max lookup files to cache */
 413 extern uschar *lookup_value;           /* Value looked up from file */
 414
 415 extern macro_item *macros;             /* Configuration macros */
 416 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 417 #ifdef WITH_CONTENT_SCAN
 418 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 419 #endif
 420 extern int     max_username_length;    /* For systems with broken getpwnam() */
 421 extern int     message_age;            /* In seconds */
 422 extern uschar *message_body;           /* Start of message body for filter */
 423 extern uschar *message_body_end;       /* End of message body for filter */
 424 extern int     message_body_size;      /* Sic */
 425 extern int     message_body_visible;   /* Amount visible in message_body */
 426 extern int     message_ended;          /* State of message reading and how ended */
 427 extern uschar *message_headers;        /* When built */
 428 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 429 extern uschar *message_id_external;    /* External form of following */
 430 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 431 extern uschar *message_id_text;        /* Expanded to form message_id */
 432 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 433 extern int     message_linecount;      /* As it says */
 434 extern BOOL    message_logs;           /* TRUE to write message logs */
 435 extern int     message_size;           /* Size of message */
 436 extern uschar *message_size_limit;     /* As it says */
 437 extern uschar  message_subdir[];       /* Subdirectory for messages */
 438 extern uschar *message_reference;      /* Reference for error messages */
 439
 440 /* MIME ACL expandables */
 441 #ifdef WITH_CONTENT_SCAN
 442 extern int     mime_anomaly_level;
 443 extern uschar *mime_anomaly_text;
 444 extern uschar *mime_boundary;
 445 extern uschar *mime_charset;
 446 extern uschar *mime_content_description;
 447 extern uschar *mime_content_disposition;
 448 extern uschar *mime_content_id;
 449 extern unsigned int mime_content_size;
 450 extern uschar *mime_content_transfer_encoding;
 451 extern uschar *mime_content_type;
 452 extern uschar *mime_decoded_filename;
 453 extern uschar *mime_filename;
 454 extern int     mime_is_multipart;
 455 extern int     mime_is_coverletter;
 456 extern int     mime_is_rfc822;
 457 extern int     mime_part_count;
 458 #endif
 459
 460 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 461
 462 extern uid_t  *never_users;            /* List of uids never to be used */
 463 #ifdef WITH_CONTENT_SCAN
 464 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 465 #endif
 466 extern BOOL    no_multiline_responses; /* For broken clients */
 467
 468 extern optionlist optionlist_auths[];      /* These option lists are made */
 469 extern int     optionlist_auths_size;      /* global so that readconf can */
 470 extern optionlist optionlist_routers[];    /* see them for printing out   */
 471 extern int     optionlist_routers_size;    /* the options.                */
 472 extern optionlist optionlist_transports[];
 473 extern int     optionlist_transports_size;
 474
 475 extern uid_t   original_euid;          /* Original effective uid */
 476 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 477 extern uschar *originator_login;       /* Login of same */
 478 extern uschar *originator_name;        /* Full name of same */
 479 extern uid_t   originator_uid;         /* Uid of ditto */
 480 extern uschar *override_local_interfaces; /* Value of -oX argument */
 481 extern uschar *override_pid_file_path; /* Value of -oP argument */
 482
 483 extern BOOL    parse_allow_group;      /* Allow group syntax */
 484 extern BOOL    parse_found_group;      /* In the middle of a group */
 485 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 486 extern uschar *pid_file_path;          /* For writing daemon pids */
 487 extern uschar *pipelining_advertise_hosts; /* As it says */
 488 extern BOOL    preserve_message_logs;  /* Save msglog files */
 489 extern uschar *primary_hostname;       /* Primary name of this computer */
 490 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 491 extern uschar  process_info[];         /* For SIGUSR1 output */
 492 extern uschar *process_log_path;       /* Alternate path */
 493 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 494 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 495 extern uschar *prvscheck_keynum;       /* Set during prvscheck expansion item */
 496 extern uschar *prvscheck_result;       /* Set during prvscheck expansion item */
 497
 498 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 499 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 500 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 501 extern uschar *queue_domains;          /* Queue these domains */
 502 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 503 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 504 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 505 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 506 extern BOOL    queue_running;          /* TRUE for queue running process and */
 507                                        /*   immediate children */
 508 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 509 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 510 extern int     queue_interval;         /* Queue running interval */
 511 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 512 extern int     queue_only_load;        /* Max load before auto-queue */
 513 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 514 extern BOOL    queue_only_override;    /* Allow override from command line */
 515 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 516 extern BOOL    queue_run_in_order;     /* As opposed to random */
 517 extern int     queue_run_max;          /* Max queue runners */
 518 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 519 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 520
 521 extern unsigned int random_seed;       /* Seed for random numbers */
 522 extern tree_node *ratelimiters_cmd;    /* Results of command ratelimit checks */
 523 extern tree_node *ratelimiters_conn;   /* Results of connection ratelimit checks */
 524 extern tree_node *ratelimiters_mail;   /* Results of per-mail ratelimit checks */
 525 extern uschar *raw_active_hostname;    /* Pre-expansion */
 526 extern uschar *raw_sender;             /* Before rewriting */
 527 extern uschar **raw_recipients;        /* Before rewriting */
 528 extern int     raw_recipients_count;
 529 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 530 extern int     rcpt_fail_count;        /* Those that got 5xx */
 531 extern int     rcpt_defer_count;       /* Those that got 4xx */
 532 extern gid_t   real_gid;               /* Real gid */
 533 extern uid_t   real_uid;               /* Real user running program */
 534 extern BOOL    really_exim;            /* FALSE in utilities */
 535 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 536 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 537 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 538 extern int     receive_timeout;        /* For non-SMTP acceptance */
 539 extern int     received_count;         /* Count of Received: headers */
 540 extern uschar *received_for;           /* For "for" field */
 541 extern uschar *received_header_text;   /* Definition of Received: header */
 542 extern int     received_headers_max;   /* Max count of Received: headers */
 543 extern int     received_time;          /* Time the message was received */
 544 extern uschar *recipient_data;         /* lookup data for recipients */
 545 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 546 extern uschar *recipient_verify_failure; /* What went wrong */
 547 extern BOOL    recipients_discarded;   /* By an ACL */
 548 extern int     recipients_list_max;    /* Maximum number fitting in list */
 549 extern int     recipients_max;         /* Max permitted */
 550 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 551 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 552 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 553 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 554 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 555 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 556 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 557 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 558 #ifdef WITH_CONTENT_SCAN
 559 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 560 #endif
 561 extern int     remote_delivery_count;  /* Number of remote addresses */
 562 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 563 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 564 extern retry_config *retries;          /* Chain of retry config information */
 565 extern int     retry_data_expire;      /* When to expire retry data */
 566 extern int     retry_interval_max;     /* Absolute maximum */
 567 extern int     retry_maximum_timeout;  /* The maximum timeout */
 568 extern uschar *return_path;            /* Return path for a message */
 569 extern BOOL    return_path_remove;     /* Remove return-path headers */
 570 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 571 extern uschar *rfc1413_hosts;          /* RFC hosts */
 572 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 573 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 574 extern uid_t   root_uid;               /* The uid for root */
 575 extern router_info routers_available[];/* Vector of available routers */
 576 extern router_instance *routers;       /* Chain of instantiated routers */
 577 extern router_instance router_defaults;/* Default values */
 578 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 579 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 580 extern uschar *running_status;         /* Flag string for testing */
 581 extern int     runrc;                  /* rc from ${run} */
 582
 583 extern uschar *search_error_message;   /* Details of lookup problem */
 584 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 585 extern uschar *self_hostname;          /* Self host after routing->directors */
 586 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 587 extern uschar *sender_address_data;    /* address_data from sender verify */
 588 extern BOOL    sender_address_forced;  /* Set by -f */
 589 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 590 extern uschar *sender_data;            /* lookup result for senders */
 591 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 592 extern uschar *sender_fullhost;        /* Sender host name + address */
 593 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 594 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 595 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 596 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 597 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 598 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 599 extern BOOL    sender_local;           /* TRUE for local senders */
 600 extern BOOL    sender_name_forced;     /* Set by -F */
 601 extern uschar *sender_rate;            /* Sender rate computed by ACL */
 602 extern uschar *sender_rate_limit;      /* Configured rate limit */
 603 extern uschar *sender_rate_period;     /* Configured smoothing period */
 604 extern uschar *sender_rcvhost;         /* Host data for Received: */
 605 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 606 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 607 extern uschar *sender_verify_failure;  /* What went wrong */
 608 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 609 extern address_item *sender_verified_failed; /* The one that caused denial */
 610 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 611 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 612 extern int     smtp_accept_count;      /* Count of connections */
 613 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 614 extern int     smtp_accept_max;        /* Max SMTP connections */
 615 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 616 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 617 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 618 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 619 extern int     smtp_accept_queue;      /* Queue after so many connections */
 620 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 621 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 622 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 623 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 624 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 625 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 626 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 627 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */
 628 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 629 extern double  smtp_delay_mail;        /* Current MAIL delay */
 630 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 631 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 632 extern uschar *smtp_etrn_command;      /* Command to run */
 633 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 634 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 635 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 636 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 637 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 638 extern int     smtp_max_unknown_commands; /* As it says */
 639 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 640 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 641 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 642 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 643 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 644 extern int     smtp_receive_timeout;   /* Applies to each received line */
 645 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 646 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 647 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 648 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 649 extern int     smtp_rlm_limit;         /* Max delay */
 650 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 651 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 652 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 653 extern int     smtp_rlr_limit;         /* Max delay */
 654 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 655 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 656 extern BOOL    smtp_use_size;          /* Global for passed connections */
 657
 658 #ifdef WITH_CONTENT_SCAN
 659 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 660 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 661 extern uschar *spam_report;            /* the spamd report (multiline) */
 662 extern uschar *spam_score;             /* the spam score (float) */
 663 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 664 #endif
 665 #ifdef EXPERIMENTAL_SPF
 666 extern uschar *spf_header_comment;     /* spf header comment */
 667 extern uschar *spf_received;           /* SPF-Received: header */
 668 extern uschar *spf_result;             /* spf result in string form */
 669 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 670 #endif
 671 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 672 extern uschar *spool_directory;        /* Name of spool directory */
 673 #ifdef EXPERIMENTAL_SRS
 674 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 675 extern uschar *srs_db_address;         /* SRS db address */
 676 extern uschar *srs_db_key;             /* SRS db key */
 677 extern int     srs_hashlength;         /* SRS hash length */
 678 extern int     srs_hashmin;            /* SRS minimum hash length */
 679 extern int     srs_maxage;             /* SRS max age */
 680 extern uschar *srs_orig_sender;        /* SRS original sender */
 681 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 682 extern uschar *srs_recipient;          /* SRS recipient */
 683 extern uschar *srs_secrets;            /* SRS secrets list */
 684 extern uschar *srs_status;             /* SRS staus */
 685 extern BOOL    srs_usehash;            /* SRS use hash flag */
 686 extern BOOL    srs_usetimestamp;       /* SRS use timestamp flag */
 687 #endif
 688 extern int     string_datestamp_offset;/* After insertion by string_format */
 689 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 690 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 691 extern uschar *submission_domain;      /* Domain for submission mode */
 692 extern BOOL    submission_mode;        /* Can be forced from ACL */
 693 extern uschar *submission_name;        /* User name set from ACL */
 694 extern BOOL    suppress_local_fixups;  /* Can be forced from ACL */
 695 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 696 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 697 extern int     syslog_facility;        /* As defined by Syslog.h */
 698 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 699 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 700 extern uschar *system_filter;          /* Name of system filter file */
 701
 702 extern uschar *system_filter_directory_transport;  /* Transports for the */
 703 extern uschar *system_filter_file_transport;       /* system filter */
 704 extern uschar *system_filter_pipe_transport;
 705 extern uschar *system_filter_reply_transport;
 706
 707 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 708 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 709 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 710 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 711 extern BOOL    system_filtering;       /* TRUE when running system filter */
 712
 713 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 714 extern int     thismessage_size_limit; /* Limit for this message */
 715 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 716 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 717 extern int     transport_count;        /* Count of bytes transported */
 718 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 719 extern int     transport_filter_timeout; /* Timeout for same */
 720 extern BOOL    transport_filter_timed_out; /* True if it did */
 721
 722 extern transport_info transports_available[]; /* Vector of available transports */
 723 extern transport_instance *transports; /* Chain of instantiated transports */
 724 extern transport_instance transport_defaults; /* Default values */
 725
 726 extern int     transport_write_timeout;/* Set to time out individual writes */
 727
 728 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 729 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 730 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 731 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 732
 733 extern BOOL    trusted_caller;         /* Caller is trusted */
 734 extern gid_t  *trusted_groups;         /* List of trusted groups */
 735 extern uid_t  *trusted_users;          /* List of trusted users */
 736 extern uschar *timezone_string;        /* Required timezone setting */
 737
 738 extern uschar *unknown_login;          /* To use when login id unknown */
 739 extern uschar *unknown_username;       /* Ditto */
 740 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 741 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 742 extern uschar *uucp_from_sender;       /* For building the sender */
 743
 744 extern uschar *warn_message_file;      /* Template for warning messages */
 745 extern uschar *warnmsg_delay;          /* String form of delay time */
 746 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 747 extern BOOL    write_rejectlog;        /* Control of reject logging */
 748
 749 extern uschar *version_copyright;      /* Copyright notice */
 750 extern uschar *version_date;           /* Date of compilation */
 751 extern uschar *version_cnumber;        /* Compile number */
 752 extern uschar *version_string;         /* Version string */
 753
 754 extern int     warning_count;          /* Delay warnings sent for this msg */
 755
 756 /* End of globals.h */