src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.52 2007/04/13 15:13:47 ph10 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_predata;       /* ACL run for DATA command */
 130 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 131 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 132 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 133 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 134 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 135 extern tree_node *acl_var_c;           /* ACL connection variables */
 136 extern tree_node *acl_var_m;           /* ACL messsage variables */
 137 extern uschar *acl_verify_message;     /* User message for verify failure */
 138 extern string_item *acl_warn_logged;   /* Logged lines */
 139 extern uschar *acl_wherecodes[];       /* Response codes for ACL fails */
 140 extern uschar *acl_wherenames[];       /* Names for messages */
 141 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 142 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 143 extern address_item *addr_duplicate;   /* Duplicate address list */
 144 extern address_item address_defaults;  /* Default data for address item */
 145 extern uschar *address_file;           /* Name of file when delivering to one */
 146 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 147 extern BOOL    address_test_mode;      /* True for -bt */
 148 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 149 extern int     addresslist_count;      /* Number defined */
 150 extern gid_t  *admin_groups;           /* List of admin groups */
 151 extern BOOL    admin_user;             /* True if caller can do admin */
 152 extern BOOL    allow_auth_unadvertised;/* As it says */
 153 extern BOOL    allow_domain_literals;  /* As it says */
 154 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 155 extern BOOL    allow_unqualified_recipient; /* As it says */
 156 extern BOOL    allow_unqualified_sender; /* Ditto */
 157 extern BOOL    allow_utf8_domains;     /* For experimenting */
 158 extern uschar *authenticated_id;       /* ID that was authenticated */
 159 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 160 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 161 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 162 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 163 extern auth_instance *auths;           /* Chain of instantiated auths */
 164 extern auth_instance auth_defaults;    /* Default values */
 165 extern uschar *auth_defer_msg;         /* Error message for log */
 166 extern uschar *auth_defer_user_msg;    /* Error message for user */
 167 extern uschar *auth_vars[];            /* $authn variables */
 168 extern int     auto_thaw;              /* Auto-thaw interval */
 169 #ifdef WITH_CONTENT_SCAN
 170 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 171 #endif
 172
 173 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 174 extern uschar *base62_chars;           /* Table of base-62 characters */
 175 extern uschar *bi_command;             /* Command for -bi option */
 176 extern uschar *big_buffer;             /* Used for various temp things */
 177 extern int     big_buffer_size;        /* Current size (can expand) */
 178 #ifdef EXPERIMENTAL_BRIGHTMAIL
 179 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 180 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 181 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 182 extern uschar *bmi_config_file;        /* Brightmail config file */
 183 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 184 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 185 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 186 #endif
 187 extern int     body_linecount;         /* Line count in body */
 188 extern int     body_zerocount;         /* Binary zero count in body */
 189 extern uschar *bounce_message_file;    /* Template file */
 190 extern uschar *bounce_message_text;    /* One-liner */
 191 extern uschar *bounce_recipient;       /* When writing an errmsg */
 192 extern BOOL    bounce_return_body;     /* Include body in returned message */
 193 extern BOOL    bounce_return_message;  /* Include message in bounce */
 194 extern int     bounce_return_size_limit; /* Max amount to return */
 195 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 196 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 197
 198 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 199 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 200 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 201 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 202 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 203 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 204 extern int     check_log_inodes;       /* Minimum for message acceptance */
 205 extern int     check_log_space;        /* Minimum for message acceptance */
 206 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 207 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 208 extern int     check_spool_space;      /* Minimum for message acceptance */
 209 extern int     clmacro_count;          /* Number of command line macros */
 210 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 211 extern int     connection_max_messages;/* Max down one SMTP connection */
 212 extern BOOL    config_changed;         /* True if -C used */
 213 extern FILE   *config_file;            /* Configuration file */
 214 extern uschar *config_filename;        /* Configuration file name */
 215 #ifdef CONFIGURE_GROUP
 216 extern gid_t   config_gid;             /* Additional group owner */
 217 #endif
 218 extern int     config_lineno;          /* Line number */
 219 extern uschar *config_main_filelist;   /* List of possible config files */
 220 extern uschar *config_main_filename;   /* File name actually used */
 221 #ifdef CONFIGURE_OWNER
 222 extern uid_t   config_uid;             /* Additional owner */
 223 #endif
 224 extern uschar *continue_hostname;      /* Host for continued delivery */
 225 extern uschar *continue_host_address;  /* IP address for ditto */
 226 extern BOOL    continue_more;          /* Flag more addresses waiting */
 227 extern int     continue_sequence;      /* Sequence num for continued delivery */
 228 extern uschar *continue_transport;     /* Transport for continued delivery */
 229
 230 extern uschar *csa_status;             /* Client SMTP Authorization result */
 231
 232 extern BOOL    daemon_listen;          /* True if listening required */
 233 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 234 extern int     daemon_startup_retries; /* Number of times to retry */
 235 extern int     daemon_startup_sleep;   /* Sleep between retries */
 236 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 237 extern int     debug_fd;               /* The fd for debug_file */
 238 extern FILE   *debug_file;             /* Where to write debugging info */
 239 extern bit_table debug_options[];      /* Table of debug options */
 240 extern int     debug_options_count;    /* Size of table */
 241 extern int     delay_warning[];        /* Times between warnings */
 242 extern uschar *delay_warning_condition; /* Condition string for warnings */
 243 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 244
 245 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 246 extern int     deliver_datafile;       /* FD for data part of message */
 247 extern uschar *deliver_domain;         /* The local domain for delivery */
 248 extern uschar *deliver_domain_data;    /* From domain lookup */
 249 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 250 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 251 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 252 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 253 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 254 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 255 extern int     deliver_frozen_at;      /* Time of freezing */
 256 extern uschar *deliver_home;           /* Home directory for pipes */
 257 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 258                                        /* Remote host for filter */
 259 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 260 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 261 extern ino_t   deliver_inode;          /* Inode for appendfile */
 262 extern uschar *deliver_localpart;      /* The local part for delivery */
 263 extern uschar *deliver_localpart_data; /* From local part lookup */
 264 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 265 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 266 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 267 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 268 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 269 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 270 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 271 extern int     deliver_queue_load_max; /* Different value for queue running */
 272 extern address_item *deliver_recipients; /* Current set of addresses */
 273 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 274 extern BOOL    deliver_selectstring_regex; /* String is regex */
 275 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 276 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 277 #ifdef WITH_OLD_DEMIME
 278 extern int     demime_errorlevel;      /* Severity of MIME error */
 279 extern int     demime_ok;              /* Nonzero if message has been demimed */
 280 extern uschar *demime_reason;          /* Reason for broken MIME container */
 281 #endif
 282 extern BOOL    disable_callout_flush;  /* Don't flush before callouts */
 283 extern BOOL    disable_delay_flush;    /* Don't flush before "delay" in ACL */
 284 #ifdef ENABLE_DISABLE_FSYNC
 285 extern BOOL    disable_fsync;          /* Not for normal use */
 286 #endif
 287 extern BOOL    disable_ipv6;           /* Don't do any IPv6 things */
 288 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 289
 290 #ifdef EXPERIMENTAL_DOMAINKEYS
 291 extern uschar *dk_signing_domain;      /* Domain used for signing a message. */
 292 extern uschar *dk_signing_selector;    /* Selector used for signing a message. */
 293 extern int     dk_do_verify;           /* DK verification switch. Set with ACL control statement. */
 294 #endif
 295
 296 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 297 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 298 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 299 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 300 extern int     dns_retrans;            /* Retransmission time setting */
 301 extern int     dns_retry;              /* Number of retries */
 302 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 303 extern uschar *dnslist_text;           /* DNS (black) list text message */
 304 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 305 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 306 extern int     domainlist_count;       /* Number defined */
 307 extern BOOL    dont_deliver;           /* TRUE for -N option */
 308 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 309
 310 /* This option is now a no-opt, retained for compatibility */
 311 extern BOOL    drop_cr;                /* For broken local MUAs */
 312
 313 extern uschar *dsn_from;               /* From: string for DSNs */
 314
 315 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 316 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 317 extern int     errno_quota;            /* Quota errno in this OS */
 318 extern int     error_handling;         /* Error handling style */
 319 extern uschar *errors_copy;            /* For taking copies of errors */
 320 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 321 extern int     errors_sender_rc;       /* Return after message to sender*/
 322 extern gid_t   exim_gid;               /* To be used with exim_uid */
 323 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 324 extern uschar *exim_path;              /* Path to exec exim */
 325 extern uid_t   exim_uid;               /* Non-root uid for exim */
 326 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 327 extern int     expand_forbid;          /* RDO flags for forbidding things */
 328 extern int     expand_nlength[];       /* Lengths of numbered strings */
 329 extern int     expand_nmax;            /* Max numerical value */
 330 extern uschar *expand_nstring[];       /* Numbered strings */
 331 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 332 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 333 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 334
 335 extern int     fake_response;          /* Fake FAIL or DEFER response to data */
 336 extern uschar *fake_response_text;     /* User defined message for the above. Default is in globals.c. */
 337 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 338 extern BOOL    filter_running;         /* TRUE while running a filter */
 339 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 340 extern int     filter_test;            /* Filter test type */
 341 extern uschar *filter_test_sfile;      /* System filter test file */
 342 extern uschar *filter_test_ufile;      /* User filter test file */
 343 extern uschar *filter_thisaddress;     /* For address looping */
 344 extern int     finduser_retries;       /* Retry count for getpwnam() */
 345 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 346 #ifdef WITH_OLD_DEMIME
 347 extern uschar *found_extension;        /* demime acl condition: file extension found */
 348 #endif
 349 extern uschar *freeze_tell;            /* Message on (some) freezings */
 350 extern uschar *freeze_tell_config;     /* The configured setting */
 351 extern uschar *fudged_queue_times;     /* For use in test harness */
 352
 353 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 354 extern uschar *gecos_pattern;          /* Pattern to match */
 355 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 356
 357 extern int     header_insert_maxlen;   /* Max for inserting headers */
 358 extern int     header_maxsize;         /* Max total length for header */
 359 extern int     header_line_maxsize;    /* Max for an individual line */
 360 extern header_name header_names[];     /* Table of header names */
 361 extern int     header_names_size;      /* Number of entries */
 362 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 363 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 364 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 365 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 366 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 367 extern BOOL    helo_verified;          /* True if HELO verified */
 368 extern BOOL    helo_verify_failed;     /* True if attempt failed */
 369 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 370 extern uschar *hex_digits;             /* Used in several places */
 371 extern uschar *hold_domains;           /* Hold up deliveries to these */
 372 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 373 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 374 extern uschar *host_data;              /* Obtained from lookup in ACL */
 375 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 376 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 377 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 378 extern uschar *host_lookup_order;      /* Order of host lookup types */
 379 extern uschar *host_lookup_msg;        /* Text for why it failed */
 380 extern int     host_number;            /* For sharing spools */
 381 extern uschar *host_number_string;     /* For expanding */
 382 extern uschar *host_reject_connection; /* Reject these hosts */
 383 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 384 extern int     hostlist_count;         /* Number defined */
 385 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 386 extern uschar *hosts_treat_as_local;   /* For routing */
 387
 388 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 389 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 390 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 391 extern BOOL    is_inetd;               /* True for inetd calls */
 392 extern uschar *iterate_item;           /* Item from iterate list */
 393
 394 extern int     journal_fd;             /* Fd for journal file */
 395
 396 extern int     keep_malformed;         /* Time to keep malformed messages */
 397
 398 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 399 extern int     load_average;           /* Most recently read load average */
 400 extern BOOL    local_error_message;    /* True if handling one of these */
 401 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 402 extern uschar *local_from_prefix;      /* Permitted prefixes */
 403 extern uschar *local_from_suffix;      /* Permitted suffixes */
 404 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 405 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 406 extern optionlist local_scan_options[];/* Option list for local_scan() */
 407 extern int     local_scan_options_count; /* Size of the list */
 408 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 409 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 410 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 411 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 412 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 413 extern int     localpartlist_count;    /* Number defined */
 414 extern uschar *log_buffer;             /* For constructing log entries */
 415 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 416 extern uschar *log_file_path;          /* If unset, use default */
 417 extern bit_table log_options[];        /* Table of options */
 418 extern int     log_options_count;      /* Size of table */
 419 extern int     log_reject_target;      /* Target log for ACL rejections */
 420 extern uschar *log_selector_string;    /* As supplied in the config */
 421 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 422 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 423 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 424 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 425 extern uschar *login_sender_address;   /* The actual sender address */
 426 extern lookup_info lookup_list[];      /* Vector of available lookups */
 427 extern int     lookup_list_count;      /* Number of entries in the list */
 428 extern int     lookup_open_max;        /* Max lookup files to cache */
 429 extern uschar *lookup_value;           /* Value looked up from file */
 430
 431 extern macro_item *macros;             /* Configuration macros */
 432 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 433 #ifdef WITH_CONTENT_SCAN
 434 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 435 #endif
 436 extern int     max_username_length;    /* For systems with broken getpwnam() */
 437 extern int     message_age;            /* In seconds */
 438 extern uschar *message_body;           /* Start of message body for filter */
 439 extern uschar *message_body_end;       /* End of message body for filter */
 440 extern int     message_body_size;      /* Sic */
 441 extern int     message_body_visible;   /* Amount visible in message_body */
 442 extern int     message_ended;          /* State of message reading and how ended */
 443 extern uschar *message_headers;        /* When built */
 444 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 445 extern uschar *message_id_external;    /* External form of following */
 446 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 447 extern uschar *message_id_text;        /* Expanded to form message_id */
 448 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 449 extern int     message_linecount;      /* As it says */
 450 extern BOOL    message_logs;           /* TRUE to write message logs */
 451 extern int     message_size;           /* Size of message */
 452 extern uschar *message_size_limit;     /* As it says */
 453 extern uschar  message_subdir[];       /* Subdirectory for messages */
 454 extern uschar *message_reference;      /* Reference for error messages */
 455
 456 /* MIME ACL expandables */
 457 #ifdef WITH_CONTENT_SCAN
 458 extern int     mime_anomaly_level;
 459 extern uschar *mime_anomaly_text;
 460 extern uschar *mime_boundary;
 461 extern uschar *mime_charset;
 462 extern uschar *mime_content_description;
 463 extern uschar *mime_content_disposition;
 464 extern uschar *mime_content_id;
 465 extern unsigned int mime_content_size;
 466 extern uschar *mime_content_transfer_encoding;
 467 extern uschar *mime_content_type;
 468 extern uschar *mime_decoded_filename;
 469 extern uschar *mime_filename;
 470 extern int     mime_is_multipart;
 471 extern int     mime_is_coverletter;
 472 extern int     mime_is_rfc822;
 473 extern int     mime_part_count;
 474 #endif
 475
 476 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 477
 478 extern uid_t  *never_users;            /* List of uids never to be used */
 479 #ifdef WITH_CONTENT_SCAN
 480 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 481 #endif
 482 extern BOOL    no_multiline_responses; /* For broken clients */
 483
 484 extern optionlist optionlist_auths[];      /* These option lists are made */
 485 extern int     optionlist_auths_size;      /* global so that readconf can */
 486 extern optionlist optionlist_routers[];    /* see them for printing out   */
 487 extern int     optionlist_routers_size;    /* the options.                */
 488 extern optionlist optionlist_transports[];
 489 extern int     optionlist_transports_size;
 490
 491 extern uid_t   original_euid;          /* Original effective uid */
 492 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 493 extern uschar *originator_login;       /* Login of same */
 494 extern uschar *originator_name;        /* Full name of same */
 495 extern uid_t   originator_uid;         /* Uid of ditto */
 496 extern uschar *override_local_interfaces; /* Value of -oX argument */
 497 extern uschar *override_pid_file_path; /* Value of -oP argument */
 498
 499 extern BOOL    parse_allow_group;      /* Allow group syntax */
 500 extern BOOL    parse_found_group;      /* In the middle of a group */
 501 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 502 extern uschar *pid_file_path;          /* For writing daemon pids */
 503 extern uschar *pipelining_advertise_hosts; /* As it says */
 504 extern BOOL    pipelining_enable;      /* As it says */
 505 extern BOOL    preserve_message_logs;  /* Save msglog files */
 506 extern uschar *primary_hostname;       /* Primary name of this computer */
 507 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 508 extern uschar  process_info[];         /* For SIGUSR1 output */
 509 extern uschar *process_log_path;       /* Alternate path */
 510 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 511 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 512 extern uschar *prvscheck_keynum;       /* Set during prvscheck expansion item */
 513 extern uschar *prvscheck_result;       /* Set during prvscheck expansion item */
 514
 515 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 516 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 517 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 518 extern uschar *queue_domains;          /* Queue these domains */
 519 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 520 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 521 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 522 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 523 extern BOOL    queue_running;          /* TRUE for queue running process and */
 524                                        /*   immediate children */
 525 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 526 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 527 extern int     queue_interval;         /* Queue running interval */
 528 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 529 extern int     queue_only_load;        /* Max load before auto-queue */
 530 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 531 extern BOOL    queue_only_override;    /* Allow override from command line */
 532 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 533 extern BOOL    queue_run_in_order;     /* As opposed to random */
 534 extern int     queue_run_max;          /* Max queue runners */
 535 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 536 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 537
 538 extern unsigned int random_seed;       /* Seed for random numbers */
 539 extern tree_node *ratelimiters_cmd;    /* Results of command ratelimit checks */
 540 extern tree_node *ratelimiters_conn;   /* Results of connection ratelimit checks */
 541 extern tree_node *ratelimiters_mail;   /* Results of per-mail ratelimit checks */
 542 extern uschar *raw_active_hostname;    /* Pre-expansion */
 543 extern uschar *raw_sender;             /* Before rewriting */
 544 extern uschar **raw_recipients;        /* Before rewriting */
 545 extern int     raw_recipients_count;
 546 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 547 extern int     rcpt_fail_count;        /* Those that got 5xx */
 548 extern int     rcpt_defer_count;       /* Those that got 4xx */
 549 extern gid_t   real_gid;               /* Real gid */
 550 extern uid_t   real_uid;               /* Real user running program */
 551 extern BOOL    really_exim;            /* FALSE in utilities */
 552 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 553 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 554 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 555 extern int     receive_timeout;        /* For non-SMTP acceptance */
 556 extern int     received_count;         /* Count of Received: headers */
 557 extern uschar *received_for;           /* For "for" field */
 558 extern uschar *received_header_text;   /* Definition of Received: header */
 559 extern int     received_headers_max;   /* Max count of Received: headers */
 560 extern int     received_time;          /* Time the message was received */
 561 extern uschar *recipient_data;         /* lookup data for recipients */
 562 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 563 extern uschar *recipient_verify_failure; /* What went wrong */
 564 extern BOOL    recipients_discarded;   /* By an ACL */
 565 extern int     recipients_list_max;    /* Maximum number fitting in list */
 566 extern int     recipients_max;         /* Max permitted */
 567 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 568 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 569 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 570 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 571 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 572 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 573 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 574 extern const pcre  *regex_smtp_code;   /* For recognizing SMTP codes */
 575 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 576 #ifdef WITH_CONTENT_SCAN
 577 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 578 #endif
 579 extern int     remote_delivery_count;  /* Number of remote addresses */
 580 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 581 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 582 extern retry_config *retries;          /* Chain of retry config information */
 583 extern int     retry_data_expire;      /* When to expire retry data */
 584 extern int     retry_interval_max;     /* Absolute maximum */
 585 extern int     retry_maximum_timeout;  /* The maximum timeout */
 586 extern uschar *return_path;            /* Return path for a message */
 587 extern BOOL    return_path_remove;     /* Remove return-path headers */
 588 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 589 extern uschar *rfc1413_hosts;          /* RFC hosts */
 590 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 591 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 592 extern uid_t   root_uid;               /* The uid for root */
 593 extern router_info routers_available[];/* Vector of available routers */
 594 extern router_instance *routers;       /* Chain of instantiated routers */
 595 extern router_instance router_defaults;/* Default values */
 596 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 597 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 598 extern uschar *running_status;         /* Flag string for testing */
 599 extern int     runrc;                  /* rc from ${run} */
 600
 601 extern uschar *search_error_message;   /* Details of lookup problem */
 602 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 603 extern uschar *self_hostname;          /* Self host after routing->directors */
 604 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 605 extern uschar *sender_address_data;    /* address_data from sender verify */
 606 extern BOOL    sender_address_forced;  /* Set by -f */
 607 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 608 extern uschar *sender_data;            /* lookup result for senders */
 609 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 610 extern uschar *sender_fullhost;        /* Sender host name + address */
 611 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 612 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 613 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 614 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 615 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 616 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 617 extern BOOL    sender_local;           /* TRUE for local senders */
 618 extern BOOL    sender_name_forced;     /* Set by -F */
 619 extern uschar *sender_rate;            /* Sender rate computed by ACL */
 620 extern uschar *sender_rate_limit;      /* Configured rate limit */
 621 extern uschar *sender_rate_period;     /* Configured smoothing period */
 622 extern uschar *sender_rcvhost;         /* Host data for Received: */
 623 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 624 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 625 extern uschar *sender_verify_failure;  /* What went wrong */
 626 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 627 extern address_item *sender_verified_failed; /* The one that caused denial */
 628 extern uschar *sending_ip_address;     /* Address of outgoing (SMTP) interface */
 629 extern int     sending_port;           /* Port of outgoing interface */
 630 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 631 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 632 extern int     smtp_accept_count;      /* Count of connections */
 633 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 634 extern int     smtp_accept_max;        /* Max SMTP connections */
 635 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 636 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 637 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 638 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 639 extern int     smtp_accept_queue;      /* Queue after so many connections */
 640 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 641 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 642 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 643 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 644 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 645 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 646 extern int     smtp_ch_index;          /* Index in smtp_connection_had */
 647 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 648 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */
 649 extern time_t  smtp_connection_start;  /* Start time of SMTP connection */
 650 extern uschar  smtp_connection_had[];  /* Recent SMTP commands */
 651 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 652 extern double  smtp_delay_mail;        /* Current MAIL delay */
 653 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 654 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 655 extern uschar *smtp_etrn_command;      /* Command to run */
 656 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 657 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 658 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 659 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 660 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 661 extern int     smtp_max_unknown_commands; /* As it says */
 662 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 663 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 664 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 665 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 666 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 667 extern int     smtp_receive_timeout;   /* Applies to each received line */
 668 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 669 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 670 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 671 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 672 extern int     smtp_rlm_limit;         /* Max delay */
 673 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 674 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 675 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 676 extern int     smtp_rlr_limit;         /* Max delay */
 677 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 678 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 679 extern BOOL    smtp_use_size;          /* Global for passed connections */
 680
 681 #ifdef WITH_CONTENT_SCAN
 682 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 683 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 684 extern uschar *spam_report;            /* the spamd report (multiline) */
 685 extern uschar *spam_score;             /* the spam score (float) */
 686 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 687 #endif
 688 #ifdef EXPERIMENTAL_SPF
 689 extern uschar *spf_header_comment;     /* spf header comment */
 690 extern uschar *spf_received;           /* SPF-Received: header */
 691 extern uschar *spf_result;             /* spf result in string form */
 692 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 693 #endif
 694 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 695 extern uschar *spool_directory;        /* Name of spool directory */
 696 #ifdef EXPERIMENTAL_SRS
 697 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 698 extern uschar *srs_db_address;         /* SRS db address */
 699 extern uschar *srs_db_key;             /* SRS db key */
 700 extern int     srs_hashlength;         /* SRS hash length */
 701 extern int     srs_hashmin;            /* SRS minimum hash length */
 702 extern int     srs_maxage;             /* SRS max age */
 703 extern uschar *srs_orig_sender;        /* SRS original sender */
 704 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 705 extern uschar *srs_recipient;          /* SRS recipient */
 706 extern uschar *srs_secrets;            /* SRS secrets list */
 707 extern uschar *srs_status;             /* SRS staus */
 708 extern BOOL    srs_usehash;            /* SRS use hash flag */
 709 extern BOOL    srs_usetimestamp;       /* SRS use timestamp flag */
 710 #endif
 711 extern BOOL    strict_acl_vars;        /* ACL variables have to be set before being used */
 712 extern int     string_datestamp_offset;/* After insertion by string_format */
 713 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 714 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 715 extern uschar *submission_domain;      /* Domain for submission mode */
 716 extern BOOL    submission_mode;        /* Can be forced from ACL */
 717 extern uschar *submission_name;        /* User name set from ACL */
 718 extern BOOL    suppress_local_fixups;  /* Can be forced from ACL */
 719 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 720 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 721 extern int     syslog_facility;        /* As defined by Syslog.h */
 722 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 723 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 724 extern uschar *system_filter;          /* Name of system filter file */
 725
 726 extern uschar *system_filter_directory_transport;  /* Transports for the */
 727 extern uschar *system_filter_file_transport;       /* system filter */
 728 extern uschar *system_filter_pipe_transport;
 729 extern uschar *system_filter_reply_transport;
 730
 731 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 732 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 733 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 734 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 735 extern BOOL    system_filtering;       /* TRUE when running system filter */
 736
 737 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 738 extern int     thismessage_size_limit; /* Limit for this message */
 739 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 740 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 741 extern int     transport_count;        /* Count of bytes transported */
 742 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 743 extern int     transport_filter_timeout; /* Timeout for same */
 744 extern BOOL    transport_filter_timed_out; /* True if it did */
 745
 746 extern transport_info transports_available[]; /* Vector of available transports */
 747 extern transport_instance *transports; /* Chain of instantiated transports */
 748 extern transport_instance transport_defaults; /* Default values */
 749
 750 extern int     transport_write_timeout;/* Set to time out individual writes */
 751
 752 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 753 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 754 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 755 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 756
 757 extern BOOL    trusted_caller;         /* Caller is trusted */
 758 extern gid_t  *trusted_groups;         /* List of trusted groups */
 759 extern uid_t  *trusted_users;          /* List of trusted users */
 760 extern uschar *timezone_string;        /* Required timezone setting */
 761
 762 extern uschar *unknown_login;          /* To use when login id unknown */
 763 extern uschar *unknown_username;       /* Ditto */
 764 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 765 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 766 extern uschar *uucp_from_sender;       /* For building the sender */
 767
 768 extern uschar *warn_message_file;      /* Template for warning messages */
 769 extern uschar *warnmsg_delay;          /* String form of delay time */
 770 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 771 extern BOOL    write_rejectlog;        /* Control of reject logging */
 772
 773 extern uschar *version_copyright;      /* Copyright notice */
 774 extern uschar *version_date;           /* Date of compilation */
 775 extern uschar *version_cnumber;        /* Compile number */
 776 extern uschar *version_string;         /* Version string */
 777
 778 extern int     warning_count;          /* Delay warnings sent for this msg */
 779
 780 /* End of globals.h */