src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.61 2008/01/17 13:03:35 tom Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2007 */
   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 uschar *gnutls_require_mac;     /* So some can be avoided */
  75 extern uschar *gnutls_require_kx;      /* So some can be avoided */
  76 extern uschar *gnutls_require_proto;   /* So some can be avoided */
  77 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
  78 extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */
  79 extern uschar *tls_certificate;        /* Certificate file */
  80 extern uschar *tls_crl;                /* CRL File */
  81 extern uschar *tls_dhparam;            /* DH param file */
  82 extern BOOL    tls_offered;            /* Server offered TLS */
  83 extern uschar *tls_privatekey;         /* Private key file */
  84 extern BOOL    tls_remember_esmtp;     /* For YAEB */
  85 extern uschar *tls_require_ciphers;    /* So some can be avoided */
  86 extern uschar *tls_try_verify_hosts;   /* Optional client verification */
  87 extern uschar *tls_verify_certificates;/* Path for certificates to check */
  88 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
  89 #endif
  90
  91
  92 /* Input-reading functions for messages, so we can use special ones for
  93 incoming TCP/IP. */
  94
  95 extern int (*receive_getc)(void);
  96 extern int (*receive_ungetc)(int);
  97 extern int (*receive_feof)(void);
  98 extern int (*receive_ferror)(void);
  99 extern BOOL (*receive_smtp_buffered)(void);
 100
 101
 102 /* For clearing, saving, restoring address expansion variables. We have to have
 103 the size of this vector set explicitly, because it is referenced from more than
 104 one module. */
 105
 106 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
 107
 108 /* General global variables */
 109
 110 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
 111 extern header_line *acl_added_headers; /* Headers added by an ACL */
 112 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 113 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 114 #ifdef WITH_CONTENT_SCAN
 115 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */
 116 #endif
 117 extern uschar *acl_not_smtp_start;     /* ACL run at the beginning of a non-SMTP session */
 118 extern uschar *acl_smtp_auth;          /* ACL run for AUTH */
 119 extern uschar *acl_smtp_connect;       /* ACL run on SMTP connection */
 120 extern uschar *acl_smtp_data;          /* ACL run after DATA received */
 121 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 122 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 123 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 124 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 125 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 126 #ifdef WITH_CONTENT_SCAN
 127 extern uschar *acl_smtp_mime;          /* ACL run after DATA, before acl_smtp_data, for each MIME part */
 128 #endif
 129 extern uschar *acl_smtp_notquit;       /* ACL run for disconnects */
 130 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 131 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 132 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 133 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 134 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 135 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 136 extern tree_node *acl_var_c;           /* ACL connection variables */
 137 extern tree_node *acl_var_m;           /* ACL messsage variables */
 138 extern uschar *acl_verify_message;     /* User message for verify failure */
 139 extern string_item *acl_warn_logged;   /* Logged lines */
 140 extern uschar *acl_wherecodes[];       /* Response codes for ACL fails */
 141 extern uschar *acl_wherenames[];       /* Names for messages */
 142 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 143 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 144 extern address_item *addr_duplicate;   /* Duplicate address list */
 145 extern address_item address_defaults;  /* Default data for address item */
 146 extern uschar *address_file;           /* Name of file when delivering to one */
 147 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 148 extern BOOL    address_test_mode;      /* True for -bt */
 149 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 150 extern int     addresslist_count;      /* Number defined */
 151 extern gid_t  *admin_groups;           /* List of admin groups */
 152 extern BOOL    admin_user;             /* True if caller can do admin */
 153 extern BOOL    allow_auth_unadvertised;/* As it says */
 154 extern BOOL    allow_domain_literals;  /* As it says */
 155 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 156 extern BOOL    allow_unqualified_recipient; /* As it says */
 157 extern BOOL    allow_unqualified_sender; /* Ditto */
 158 extern BOOL    allow_utf8_domains;     /* For experimenting */
 159 extern uschar *authenticated_id;       /* ID that was authenticated */
 160 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 161 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 162 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 163 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 164 extern auth_instance *auths;           /* Chain of instantiated auths */
 165 extern auth_instance auth_defaults;    /* Default values */
 166 extern uschar *auth_defer_msg;         /* Error message for log */
 167 extern uschar *auth_defer_user_msg;    /* Error message for user */
 168 extern uschar *auth_vars[];            /* $authn variables */
 169 extern int     auto_thaw;              /* Auto-thaw interval */
 170 #ifdef WITH_CONTENT_SCAN
 171 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 172 #endif
 173
 174 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 175 extern uschar *base62_chars;           /* Table of base-62 characters */
 176 extern uschar *bi_command;             /* Command for -bi option */
 177 extern uschar *big_buffer;             /* Used for various temp things */
 178 extern int     big_buffer_size;        /* Current size (can expand) */
 179 #ifdef EXPERIMENTAL_BRIGHTMAIL
 180 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 181 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 182 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 183 extern uschar *bmi_config_file;        /* Brightmail config file */
 184 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 185 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 186 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 187 #endif
 188 extern uschar *bounce_message_file;    /* Template file */
 189 extern uschar *bounce_message_text;    /* One-liner */
 190 extern uschar *bounce_recipient;       /* When writing an errmsg */
 191 extern BOOL    bounce_return_body;     /* Include body in returned message */
 192 extern BOOL    bounce_return_message;  /* Include message in bounce */
 193 extern int     bounce_return_size_limit; /* Max amount to return */
 194 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 195 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 196
 197 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 198 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 199 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 200 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 201 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 202 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 203 extern int     check_log_inodes;       /* Minimum for message acceptance */
 204 extern int     check_log_space;        /* Minimum for message acceptance */
 205 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 206 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 207 extern int     check_spool_space;      /* Minimum for message acceptance */
 208 extern int     clmacro_count;          /* Number of command line macros */
 209 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 210 extern int     connection_max_messages;/* Max down one SMTP connection */
 211 extern BOOL    config_changed;         /* True if -C used */
 212 extern FILE   *config_file;            /* Configuration file */
 213 extern uschar *config_filename;        /* Configuration file name */
 214 #ifdef CONFIGURE_GROUP
 215 extern gid_t   config_gid;             /* Additional group owner */
 216 #endif
 217 extern int     config_lineno;          /* Line number */
 218 extern uschar *config_main_filelist;   /* List of possible config files */
 219 extern uschar *config_main_filename;   /* File name actually used */
 220 #ifdef CONFIGURE_OWNER
 221 extern uid_t   config_uid;             /* Additional owner */
 222 #endif
 223 extern uschar *continue_hostname;      /* Host for continued delivery */
 224 extern uschar *continue_host_address;  /* IP address for ditto */
 225 extern BOOL    continue_more;          /* Flag more addresses waiting */
 226 extern int     continue_sequence;      /* Sequence num for continued delivery */
 227 extern uschar *continue_transport;     /* Transport for continued delivery */
 228
 229 extern uschar *csa_status;             /* Client SMTP Authorization result */
 230
 231 extern BOOL    daemon_listen;          /* True if listening required */
 232 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 233 extern int     daemon_startup_retries; /* Number of times to retry */
 234 extern int     daemon_startup_sleep;   /* Sleep between retries */
 235
 236 #ifdef EXPERIMENTAL_DCC
 237 extern BOOL    dcc_direct_add_header;  /* directly add header */
 238 extern uschar *dcc_header;             /* dcc header */
 239 extern uschar *dcc_result;             /* dcc result */
 240 extern uschar *dccifd_address;         /* address of the dccifd daemon */
 241 extern uschar *dccifd_options;         /* options for the dccifd daemon */
 242 #endif
 243
 244 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 245 extern int     debug_fd;               /* The fd for debug_file */
 246 extern FILE   *debug_file;             /* Where to write debugging info */
 247 extern bit_table debug_options[];      /* Table of debug options */
 248 extern int     debug_options_count;    /* Size of table */
 249 extern int     delay_warning[];        /* Times between warnings */
 250 extern uschar *delay_warning_condition; /* Condition string for warnings */
 251 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 252
 253 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 254 extern int     deliver_datafile;       /* FD for data part of message */
 255 extern uschar *deliver_domain;         /* The local domain for delivery */
 256 extern uschar *deliver_domain_data;    /* From domain lookup */
 257 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 258 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 259 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 260 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 261 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 262 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 263 extern int     deliver_frozen_at;      /* Time of freezing */
 264 extern uschar *deliver_home;           /* Home directory for pipes */
 265 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 266                                        /* Remote host for filter */
 267 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 268 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 269 extern ino_t   deliver_inode;          /* Inode for appendfile */
 270 extern uschar *deliver_localpart;      /* The local part for delivery */
 271 extern uschar *deliver_localpart_data; /* From local part lookup */
 272 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 273 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 274 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 275 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 276 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 277 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 278 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 279 extern int     deliver_queue_load_max; /* Different value for queue running */
 280 extern address_item *deliver_recipients; /* Current set of addresses */
 281 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 282 extern BOOL    deliver_selectstring_regex; /* String is regex */
 283 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 284 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 285 #ifdef WITH_OLD_DEMIME
 286 extern int     demime_errorlevel;      /* Severity of MIME error */
 287 extern int     demime_ok;              /* Nonzero if message has been demimed */
 288 extern uschar *demime_reason;          /* Reason for broken MIME container */
 289 #endif
 290 extern BOOL    disable_callout_flush;  /* Don't flush before callouts */
 291 extern BOOL    disable_delay_flush;    /* Don't flush before "delay" in ACL */
 292 #ifdef ENABLE_DISABLE_FSYNC
 293 extern BOOL    disable_fsync;          /* Not for normal use */
 294 #endif
 295 extern BOOL    disable_ipv6;           /* Don't do any IPv6 things */
 296 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 297
 298 #ifdef EXPERIMENTAL_DOMAINKEYS
 299 extern uschar *dk_signing_domain;      /* Domain used for signing a message. */
 300 extern uschar *dk_signing_selector;    /* Selector used for signing a message. */
 301 extern int     dk_do_verify;           /* DK verification switch. Set with ACL control statement. */
 302 #endif
 303
 304 #ifdef EXPERIMENTAL_DKIM
 305 extern uschar *dkim_signing_domain;      /* Domain used for signing a message. */
 306 extern uschar *dkim_signing_selector;    /* Selector used for signing a message. */
 307 extern int     dkim_do_verify;           /* DKIM verification switch. Set with ACL control statement. */
 308 #endif
 309
 310 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 311 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 312 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 313 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 314 extern int     dns_retrans;            /* Retransmission time setting */
 315 extern int     dns_retry;              /* Number of retries */
 316 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 317 extern uschar *dnslist_matched;        /* DNS (black) list matched key */
 318 extern uschar *dnslist_text;           /* DNS (black) list text message */
 319 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 320 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 321 extern int     domainlist_count;       /* Number defined */
 322 extern BOOL    dont_deliver;           /* TRUE for -N option */
 323 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 324
 325 /* This option is now a no-opt, retained for compatibility */
 326 extern BOOL    drop_cr;                /* For broken local MUAs */
 327
 328 extern uschar *dsn_from;               /* From: string for DSNs */
 329
 330 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 331 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 332 extern int     errno_quota;            /* Quota errno in this OS */
 333 extern int     error_handling;         /* Error handling style */
 334 extern uschar *errors_copy;            /* For taking copies of errors */
 335 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 336 extern int     errors_sender_rc;       /* Return after message to sender*/
 337 extern gid_t   exim_gid;               /* To be used with exim_uid */
 338 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 339 extern uschar *exim_path;              /* Path to exec exim */
 340 extern uid_t   exim_uid;               /* Non-root uid for exim */
 341 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 342 extern int     expand_forbid;          /* RDO flags for forbidding things */
 343 extern int     expand_nlength[];       /* Lengths of numbered strings */
 344 extern int     expand_nmax;            /* Max numerical value */
 345 extern uschar *expand_nstring[];       /* Numbered strings */
 346 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 347 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 348 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 349
 350 extern int     fake_response;          /* Fake FAIL or DEFER response to data */
 351 extern uschar *fake_response_text;     /* User defined message for the above. Default is in globals.c. */
 352 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 353 extern BOOL    filter_running;         /* TRUE while running a filter */
 354 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 355 extern int     filter_test;            /* Filter test type */
 356 extern uschar *filter_test_sfile;      /* System filter test file */
 357 extern uschar *filter_test_ufile;      /* User filter test file */
 358 extern uschar *filter_thisaddress;     /* For address looping */
 359 extern int     finduser_retries;       /* Retry count for getpwnam() */
 360 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 361 #ifdef WITH_OLD_DEMIME
 362 extern uschar *found_extension;        /* demime acl condition: file extension found */
 363 #endif
 364 extern uschar *freeze_tell;            /* Message on (some) freezings */
 365 extern uschar *freeze_tell_config;     /* The configured setting */
 366 extern uschar *fudged_queue_times;     /* For use in test harness */
 367
 368 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 369 extern uschar *gecos_pattern;          /* Pattern to match */
 370 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 371
 372 extern int     header_insert_maxlen;   /* Max for inserting headers */
 373 extern int     header_maxsize;         /* Max total length for header */
 374 extern int     header_line_maxsize;    /* Max for an individual line */
 375 extern header_name header_names[];     /* Table of header names */
 376 extern int     header_names_size;      /* Number of entries */
 377 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 378 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 379 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 380 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 381 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 382 extern BOOL    helo_verified;          /* True if HELO verified */
 383 extern BOOL    helo_verify_failed;     /* True if attempt failed */
 384 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 385 extern uschar *hex_digits;             /* Used in several places */
 386 extern uschar *hold_domains;           /* Hold up deliveries to these */
 387 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 388 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 389 extern uschar *host_data;              /* Obtained from lookup in ACL */
 390 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 391 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 392 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 393 extern uschar *host_lookup_order;      /* Order of host lookup types */
 394 extern uschar *host_lookup_msg;        /* Text for why it failed */
 395 extern int     host_number;            /* For sharing spools */
 396 extern uschar *host_number_string;     /* For expanding */
 397 extern uschar *host_reject_connection; /* Reject these hosts */
 398 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 399 extern int     hostlist_count;         /* Number defined */
 400 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 401 extern uschar *hosts_treat_as_local;   /* For routing */
 402
 403 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 404 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 405 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 406 extern BOOL    is_inetd;               /* True for inetd calls */
 407 extern uschar *iterate_item;           /* Item from iterate list */
 408
 409 extern int     journal_fd;             /* Fd for journal file */
 410
 411 extern int     keep_malformed;         /* Time to keep malformed messages */
 412
 413 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 414 extern int     load_average;           /* Most recently read load average */
 415 extern BOOL    local_error_message;    /* True if handling one of these */
 416 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 417 extern uschar *local_from_prefix;      /* Permitted prefixes */
 418 extern uschar *local_from_suffix;      /* Permitted suffixes */
 419 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 420 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 421 extern optionlist local_scan_options[];/* Option list for local_scan() */
 422 extern int     local_scan_options_count; /* Size of the list */
 423 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 424 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 425 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 426 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 427 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 428 extern int     localpartlist_count;    /* Number defined */
 429 extern uschar *log_buffer;             /* For constructing log entries */
 430 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 431 extern uschar *log_file_path;          /* If unset, use default */
 432 extern bit_table log_options[];        /* Table of options */
 433 extern int     log_options_count;      /* Size of table */
 434 extern int     log_reject_target;      /* Target log for ACL rejections */
 435 extern uschar *log_selector_string;    /* As supplied in the config */
 436 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 437 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 438 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 439 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 440 extern uschar *login_sender_address;   /* The actual sender address */
 441 extern lookup_info lookup_list[];      /* Vector of available lookups */
 442 extern int     lookup_list_count;      /* Number of entries in the list */
 443 extern int     lookup_open_max;        /* Max lookup files to cache */
 444 extern uschar *lookup_value;           /* Value looked up from file */
 445
 446 extern macro_item *macros;             /* Configuration macros */
 447 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 448 #ifdef WITH_CONTENT_SCAN
 449 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 450 #endif
 451 extern int     max_received_linelength;/* What it says */
 452 extern int     max_username_length;    /* For systems with broken getpwnam() */
 453 extern int     message_age;            /* In seconds */
 454 extern uschar *message_body;           /* Start of message body for filter */
 455 extern uschar *message_body_end;       /* End of message body for filter */
 456 extern BOOL    message_body_newlines;  /* FALSE => remove newlines */
 457 extern int     message_body_size;      /* Sic */
 458 extern int     message_body_visible;   /* Amount visible in message_body */
 459 extern int     message_ended;          /* State of message reading and how ended */
 460 extern uschar *message_headers;        /* When built */
 461 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 462 extern uschar *message_id_external;    /* External form of following */
 463 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 464 extern uschar *message_id_text;        /* Expanded to form message_id */
 465 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 466 extern int     message_linecount;      /* As it says */
 467 extern BOOL    message_logs;           /* TRUE to write message logs */
 468 extern int     message_size;           /* Size of message */
 469 extern uschar *message_size_limit;     /* As it says */
 470 extern uschar  message_subdir[];       /* Subdirectory for messages */
 471 extern uschar *message_reference;      /* Reference for error messages */
 472
 473 /* MIME ACL expandables */
 474 #ifdef WITH_CONTENT_SCAN
 475 extern int     mime_anomaly_level;
 476 extern uschar *mime_anomaly_text;
 477 extern uschar *mime_boundary;
 478 extern uschar *mime_charset;
 479 extern uschar *mime_content_description;
 480 extern uschar *mime_content_disposition;
 481 extern uschar *mime_content_id;
 482 extern unsigned int mime_content_size;
 483 extern uschar *mime_content_transfer_encoding;
 484 extern uschar *mime_content_type;
 485 extern uschar *mime_decoded_filename;
 486 extern uschar *mime_filename;
 487 extern int     mime_is_multipart;
 488 extern int     mime_is_coverletter;
 489 extern int     mime_is_rfc822;
 490 extern int     mime_part_count;
 491 #endif
 492
 493 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 494
 495 extern uid_t  *never_users;            /* List of uids never to be used */
 496 #ifdef WITH_CONTENT_SCAN
 497 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 498 #endif
 499 extern BOOL    no_multiline_responses; /* For broken clients */
 500
 501 extern optionlist optionlist_auths[];      /* These option lists are made */
 502 extern int     optionlist_auths_size;      /* global so that readconf can */
 503 extern optionlist optionlist_routers[];    /* see them for printing out   */
 504 extern int     optionlist_routers_size;    /* the options.                */
 505 extern optionlist optionlist_transports[];
 506 extern int     optionlist_transports_size;
 507
 508 extern uid_t   original_euid;          /* Original effective uid */
 509 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 510 extern uschar *originator_login;       /* Login of same */
 511 extern uschar *originator_name;        /* Full name of same */
 512 extern uid_t   originator_uid;         /* Uid of ditto */
 513 extern uschar *override_local_interfaces; /* Value of -oX argument */
 514 extern uschar *override_pid_file_path; /* Value of -oP argument */
 515
 516 extern BOOL    parse_allow_group;      /* Allow group syntax */
 517 extern BOOL    parse_found_group;      /* In the middle of a group */
 518 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 519 extern uschar *pid_file_path;          /* For writing daemon pids */
 520 extern uschar *pipelining_advertise_hosts; /* As it says */
 521 extern BOOL    pipelining_enable;      /* As it says */
 522 extern BOOL    preserve_message_logs;  /* Save msglog files */
 523 extern uschar *primary_hostname;       /* Primary name of this computer */
 524 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 525 extern uschar  process_info[];         /* For SIGUSR1 output */
 526 extern uschar *process_log_path;       /* Alternate path */
 527 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 528 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 529 extern uschar *prvscheck_keynum;       /* Set during prvscheck expansion item */
 530 extern uschar *prvscheck_result;       /* Set during prvscheck expansion item */
 531
 532 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 533 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 534 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 535 extern uschar *queue_domains;          /* Queue these domains */
 536 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 537 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 538 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 539 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 540 extern BOOL    queue_running;          /* TRUE for queue running process and */
 541                                        /*   immediate children */
 542 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 543 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 544 extern int     queue_interval;         /* Queue running interval */
 545 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 546 extern int     queue_only_load;        /* Max load before auto-queue */
 547 extern BOOL    queue_only_load_latch;  /* Latch queue_only_load TRUE */
 548 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 549 extern BOOL    queue_only_override;    /* Allow override from command line */
 550 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 551 extern BOOL    queue_run_in_order;     /* As opposed to random */
 552 extern int     queue_run_max;          /* Max queue runners */
 553 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 554 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 555
 556 extern unsigned int random_seed;       /* Seed for random numbers */
 557 extern tree_node *ratelimiters_cmd;    /* Results of command ratelimit checks */
 558 extern tree_node *ratelimiters_conn;   /* Results of connection ratelimit checks */
 559 extern tree_node *ratelimiters_mail;   /* Results of per-mail ratelimit checks */
 560 extern uschar *raw_active_hostname;    /* Pre-expansion */
 561 extern uschar *raw_sender;             /* Before rewriting */
 562 extern uschar **raw_recipients;        /* Before rewriting */
 563 extern int     raw_recipients_count;
 564 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 565 extern int     rcpt_fail_count;        /* Those that got 5xx */
 566 extern int     rcpt_defer_count;       /* Those that got 4xx */
 567 extern gid_t   real_gid;               /* Real gid */
 568 extern uid_t   real_uid;               /* Real user running program */
 569 extern BOOL    really_exim;            /* FALSE in utilities */
 570 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 571 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 572 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 573 extern int     receive_timeout;        /* For non-SMTP acceptance */
 574 extern int     received_count;         /* Count of Received: headers */
 575 extern uschar *received_for;           /* For "for" field */
 576 extern uschar *received_header_text;   /* Definition of Received: header */
 577 extern int     received_headers_max;   /* Max count of Received: headers */
 578 extern int     received_time;          /* Time the message was received */
 579 extern uschar *recipient_data;         /* lookup data for recipients */
 580 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 581 extern uschar *recipient_verify_failure; /* What went wrong */
 582 extern BOOL    recipients_discarded;   /* By an ACL */
 583 extern int     recipients_list_max;    /* Maximum number fitting in list */
 584 extern int     recipients_max;         /* Max permitted */
 585 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 586 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 587 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 588 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 589 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 590 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 591 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 592 extern const pcre  *regex_smtp_code;   /* For recognizing SMTP codes */
 593 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 594 #ifdef WITH_CONTENT_SCAN
 595 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 596 #endif
 597 extern int     remote_delivery_count;  /* Number of remote addresses */
 598 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 599 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 600 extern retry_config *retries;          /* Chain of retry config information */
 601 extern int     retry_data_expire;      /* When to expire retry data */
 602 extern int     retry_interval_max;     /* Absolute maximum */
 603 extern int     retry_maximum_timeout;  /* The maximum timeout */
 604 extern uschar *return_path;            /* Return path for a message */
 605 extern BOOL    return_path_remove;     /* Remove return-path headers */
 606 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 607 extern uschar *rfc1413_hosts;          /* RFC hosts */
 608 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 609 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 610 extern uid_t   root_uid;               /* The uid for root */
 611 extern router_info routers_available[];/* Vector of available routers */
 612 extern router_instance *routers;       /* Chain of instantiated routers */
 613 extern router_instance router_defaults;/* Default values */
 614 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 615 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 616 extern uschar *running_status;         /* Flag string for testing */
 617 extern int     runrc;                  /* rc from ${run} */
 618
 619 extern uschar *search_error_message;   /* Details of lookup problem */
 620 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 621 extern uschar *self_hostname;          /* Self host after routing->directors */
 622 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 623 extern uschar *sender_address_data;    /* address_data from sender verify */
 624 extern BOOL    sender_address_forced;  /* Set by -f */
 625 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 626 extern uschar *sender_data;            /* lookup result for senders */
 627 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 628 extern uschar *sender_fullhost;        /* Sender host name + address */
 629 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 630 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 631 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 632 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 633 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 634 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 635 extern BOOL    sender_local;           /* TRUE for local senders */
 636 extern BOOL    sender_name_forced;     /* Set by -F */
 637 extern uschar *sender_rate;            /* Sender rate computed by ACL */
 638 extern uschar *sender_rate_limit;      /* Configured rate limit */
 639 extern uschar *sender_rate_period;     /* Configured smoothing period */
 640 extern uschar *sender_rcvhost;         /* Host data for Received: */
 641 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 642 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 643 extern uschar *sender_verify_failure;  /* What went wrong */
 644 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 645 extern address_item *sender_verified_failed; /* The one that caused denial */
 646 extern uschar *sending_ip_address;     /* Address of outgoing (SMTP) interface */
 647 extern int     sending_port;           /* Port of outgoing interface */
 648 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 649 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 650 extern int     smtp_accept_count;      /* Count of connections */
 651 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 652 extern int     smtp_accept_max;        /* Max SMTP connections */
 653 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 654 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 655 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 656 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 657 extern int     smtp_accept_queue;      /* Queue after so many connections */
 658 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 659 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 660 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 661 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 662 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 663 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 664 extern int     smtp_ch_index;          /* Index in smtp_connection_had */
 665 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 666 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */
 667 extern time_t  smtp_connection_start;  /* Start time of SMTP connection */
 668 extern uschar  smtp_connection_had[];  /* Recent SMTP commands */
 669 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 670 extern double  smtp_delay_mail;        /* Current MAIL delay */
 671 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 672 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 673 extern uschar *smtp_etrn_command;      /* Command to run */
 674 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 675 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 676 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 677 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 678 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 679 extern int     smtp_max_unknown_commands; /* As it says */
 680 extern uschar *smtp_notquit_reason;    /* Global for disconnect reason */
 681 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 682 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 683 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 684 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 685 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 686 extern int     smtp_receive_timeout;   /* Applies to each received line */
 687 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 688 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 689 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 690 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 691 extern int     smtp_rlm_limit;         /* Max delay */
 692 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 693 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 694 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 695 extern int     smtp_rlr_limit;         /* Max delay */
 696 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 697 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 698 extern BOOL    smtp_use_size;          /* Global for passed connections */
 699
 700 #ifdef WITH_CONTENT_SCAN
 701 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 702 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 703 extern uschar *spam_report;            /* the spamd report (multiline) */
 704 extern uschar *spam_score;             /* the spam score (float) */
 705 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 706 #endif
 707 #ifdef EXPERIMENTAL_SPF
 708 extern uschar *spf_header_comment;     /* spf header comment */
 709 extern uschar *spf_received;           /* Received-SPF: header */
 710 extern uschar *spf_result;             /* spf result in string form */
 711 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 712 #endif
 713 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 714 extern uschar *spool_directory;        /* Name of spool directory */
 715 #ifdef EXPERIMENTAL_SRS
 716 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 717 extern uschar *srs_db_address;         /* SRS db address */
 718 extern uschar *srs_db_key;             /* SRS db key */
 719 extern int     srs_hashlength;         /* SRS hash length */
 720 extern int     srs_hashmin;            /* SRS minimum hash length */
 721 extern int     srs_maxage;             /* SRS max age */
 722 extern uschar *srs_orig_sender;        /* SRS original sender */
 723 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 724 extern uschar *srs_recipient;          /* SRS recipient */
 725 extern uschar *srs_secrets;            /* SRS secrets list */
 726 extern uschar *srs_status;             /* SRS staus */
 727 extern BOOL    srs_usehash;            /* SRS use hash flag */
 728 extern BOOL    srs_usetimestamp;       /* SRS use timestamp flag */
 729 #endif
 730 extern BOOL    strict_acl_vars;        /* ACL variables have to be set before being used */
 731 extern int     string_datestamp_offset;/* After insertion by string_format */
 732 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 733 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 734 extern uschar *submission_domain;      /* Domain for submission mode */
 735 extern BOOL    submission_mode;        /* Can be forced from ACL */
 736 extern uschar *submission_name;        /* User name set from ACL */
 737 extern BOOL    suppress_local_fixups;  /* Can be forced from ACL */
 738 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 739 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 740 extern int     syslog_facility;        /* As defined by Syslog.h */
 741 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 742 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 743 extern uschar *system_filter;          /* Name of system filter file */
 744
 745 extern uschar *system_filter_directory_transport;  /* Transports for the */
 746 extern uschar *system_filter_file_transport;       /* system filter */
 747 extern uschar *system_filter_pipe_transport;
 748 extern uschar *system_filter_reply_transport;
 749
 750 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 751 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 752 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 753 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 754 extern BOOL    system_filtering;       /* TRUE when running system filter */
 755
 756 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 757 extern int     test_harness_load_avg;  /* For use when testing */
 758 extern int     thismessage_size_limit; /* Limit for this message */
 759 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 760 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 761 extern int     transport_count;        /* Count of bytes transported */
 762 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 763 extern int     transport_filter_timeout; /* Timeout for same */
 764 extern BOOL    transport_filter_timed_out; /* True if it did */
 765
 766 extern transport_info transports_available[]; /* Vector of available transports */
 767 extern transport_instance *transports; /* Chain of instantiated transports */
 768 extern transport_instance transport_defaults; /* Default values */
 769
 770 extern int     transport_write_timeout;/* Set to time out individual writes */
 771
 772 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 773 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 774 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 775 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 776
 777 extern BOOL    trusted_caller;         /* Caller is trusted */
 778 extern gid_t  *trusted_groups;         /* List of trusted groups */
 779 extern uid_t  *trusted_users;          /* List of trusted users */
 780 extern uschar *timezone_string;        /* Required timezone setting */
 781
 782 extern uschar *unknown_login;          /* To use when login id unknown */
 783 extern uschar *unknown_username;       /* Ditto */
 784 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 785 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 786 extern uschar *uucp_from_sender;       /* For building the sender */
 787
 788 extern uschar *warn_message_file;      /* Template for warning messages */
 789 extern uschar *warnmsg_delay;          /* String form of delay time */
 790 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 791 extern BOOL    write_rejectlog;        /* Control of reject logging */
 792
 793 extern uschar *version_copyright;      /* Copyright notice */
 794 extern uschar *version_date;           /* Date of compilation */
 795 extern uschar *version_cnumber;        /* Compile number */
 796 extern uschar *version_string;         /* Version string */
 797
 798 extern int     warning_count;          /* Delay warnings sent for this msg */
 799
 800 /* End of globals.h */