src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.65 2009/10/15 08:27:37 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 #ifndef DISABLE_DKIM
 122 extern uschar *acl_smtp_dkim;          /* ACL run for DKIM signatures / domains */
 123 #endif
 124 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 125 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 126 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 127 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 128 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 129 #ifdef WITH_CONTENT_SCAN
 130 extern uschar *acl_smtp_mime;          /* ACL run after DATA, before acl_smtp_data, for each MIME part */
 131 #endif
 132 extern uschar *acl_smtp_notquit;       /* ACL run for disconnects */
 133 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 134 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 135 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 136 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 137 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 138 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 139 extern tree_node *acl_var_c;           /* ACL connection variables */
 140 extern tree_node *acl_var_m;           /* ACL messsage variables */
 141 extern uschar *acl_verify_message;     /* User message for verify failure */
 142 extern string_item *acl_warn_logged;   /* Logged lines */
 143 extern uschar *acl_wherecodes[];       /* Response codes for ACL fails */
 144 extern uschar *acl_wherenames[];       /* Names for messages */
 145 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 146 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 147 extern address_item *addr_duplicate;   /* Duplicate address list */
 148 extern address_item address_defaults;  /* Default data for address item */
 149 extern uschar *address_file;           /* Name of file when delivering to one */
 150 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 151 extern BOOL    address_test_mode;      /* True for -bt */
 152 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 153 extern int     addresslist_count;      /* Number defined */
 154 extern gid_t  *admin_groups;           /* List of admin groups */
 155 extern BOOL    admin_user;             /* True if caller can do admin */
 156 extern BOOL    allow_auth_unadvertised;/* As it says */
 157 extern BOOL    allow_domain_literals;  /* As it says */
 158 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 159 extern BOOL    allow_unqualified_recipient; /* As it says */
 160 extern BOOL    allow_unqualified_sender; /* Ditto */
 161 extern BOOL    allow_utf8_domains;     /* For experimenting */
 162 extern uschar *authenticated_id;       /* ID that was authenticated */
 163 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 164 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 165 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 166 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 167 extern auth_instance *auths;           /* Chain of instantiated auths */
 168 extern auth_instance auth_defaults;    /* Default values */
 169 extern uschar *auth_defer_msg;         /* Error message for log */
 170 extern uschar *auth_defer_user_msg;    /* Error message for user */
 171 extern uschar *auth_vars[];            /* $authn variables */
 172 extern int     auto_thaw;              /* Auto-thaw interval */
 173 #ifdef WITH_CONTENT_SCAN
 174 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 175 #endif
 176
 177 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 178 extern uschar *base62_chars;           /* Table of base-62 characters */
 179 extern uschar *bi_command;             /* Command for -bi option */
 180 extern uschar *big_buffer;             /* Used for various temp things */
 181 extern int     big_buffer_size;        /* Current size (can expand) */
 182 #ifdef EXPERIMENTAL_BRIGHTMAIL
 183 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 184 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 185 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 186 extern uschar *bmi_config_file;        /* Brightmail config file */
 187 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 188 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 189 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 190 #endif
 191 extern uschar *bounce_message_file;    /* Template file */
 192 extern uschar *bounce_message_text;    /* One-liner */
 193 extern uschar *bounce_recipient;       /* When writing an errmsg */
 194 extern BOOL    bounce_return_body;     /* Include body in returned message */
 195 extern BOOL    bounce_return_message;  /* Include message in bounce */
 196 extern int     bounce_return_size_limit; /* Max amount to return */
 197 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 198 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 199
 200 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 201 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 202 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 203 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 204 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 205 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 206 extern int     check_log_inodes;       /* Minimum for message acceptance */
 207 extern int     check_log_space;        /* Minimum for message acceptance */
 208 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 209 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 210 extern int     check_spool_space;      /* Minimum for message acceptance */
 211 extern int     clmacro_count;          /* Number of command line macros */
 212 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 213 extern int     connection_max_messages;/* Max down one SMTP connection */
 214 extern BOOL    config_changed;         /* True if -C used */
 215 extern FILE   *config_file;            /* Configuration file */
 216 extern uschar *config_filename;        /* Configuration file name */
 217 #ifdef CONFIGURE_GROUP
 218 extern gid_t   config_gid;             /* Additional group owner */
 219 #endif
 220 extern int     config_lineno;          /* Line number */
 221 extern uschar *config_main_filelist;   /* List of possible config files */
 222 extern uschar *config_main_filename;   /* File name actually used */
 223 #ifdef CONFIGURE_OWNER
 224 extern uid_t   config_uid;             /* Additional owner */
 225 #endif
 226 extern uschar *continue_hostname;      /* Host for continued delivery */
 227 extern uschar *continue_host_address;  /* IP address for ditto */
 228 extern BOOL    continue_more;          /* Flag more addresses waiting */
 229 extern int     continue_sequence;      /* Sequence num for continued delivery */
 230 extern uschar *continue_transport;     /* Transport for continued delivery */
 231
 232 extern uschar *csa_status;             /* Client SMTP Authorization result */
 233
 234 extern BOOL    daemon_listen;          /* True if listening required */
 235 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 236 extern int     daemon_startup_retries; /* Number of times to retry */
 237 extern int     daemon_startup_sleep;   /* Sleep between retries */
 238
 239 #ifdef EXPERIMENTAL_DCC
 240 extern BOOL    dcc_direct_add_header;  /* directly add header */
 241 extern uschar *dcc_header;             /* dcc header */
 242 extern uschar *dcc_result;             /* dcc result */
 243 extern uschar *dccifd_address;         /* address of the dccifd daemon */
 244 extern uschar *dccifd_options;         /* options for the dccifd daemon */
 245 #endif
 246
 247 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 248 extern int     debug_fd;               /* The fd for debug_file */
 249 extern FILE   *debug_file;             /* Where to write debugging info */
 250 extern bit_table debug_options[];      /* Table of debug options */
 251 extern int     debug_options_count;    /* Size of table */
 252 extern int     delay_warning[];        /* Times between warnings */
 253 extern uschar *delay_warning_condition; /* Condition string for warnings */
 254 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 255
 256 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 257 extern int     deliver_datafile;       /* FD for data part of message */
 258 extern uschar *deliver_domain;         /* The local domain for delivery */
 259 extern uschar *deliver_domain_data;    /* From domain lookup */
 260 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 261 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 262 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 263 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 264 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 265 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 266 extern int     deliver_frozen_at;      /* Time of freezing */
 267 extern uschar *deliver_home;           /* Home directory for pipes */
 268 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 269                                        /* Remote host for filter */
 270 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 271 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 272 extern ino_t   deliver_inode;          /* Inode for appendfile */
 273 extern uschar *deliver_localpart;      /* The local part for delivery */
 274 extern uschar *deliver_localpart_data; /* From local part lookup */
 275 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 276 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 277 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 278 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 279 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 280 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 281 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 282 extern int     deliver_queue_load_max; /* Different value for queue running */
 283 extern address_item *deliver_recipients; /* Current set of addresses */
 284 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 285 extern BOOL    deliver_selectstring_regex; /* String is regex */
 286 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 287 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 288 #ifdef WITH_OLD_DEMIME
 289 extern int     demime_errorlevel;      /* Severity of MIME error */
 290 extern int     demime_ok;              /* Nonzero if message has been demimed */
 291 extern uschar *demime_reason;          /* Reason for broken MIME container */
 292 #endif
 293 extern BOOL    disable_callout_flush;  /* Don't flush before callouts */
 294 extern BOOL    disable_delay_flush;    /* Don't flush before "delay" in ACL */
 295 #ifdef ENABLE_DISABLE_FSYNC
 296 extern BOOL    disable_fsync;          /* Not for normal use */
 297 #endif
 298 extern BOOL    disable_ipv6;           /* Don't do any IPv6 things */
 299 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 300
 301 #ifndef DISABLE_DKIM
 302 extern uschar *dkim_cur_signer;        /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
 303 extern uschar *dkim_signers;           /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
 304 extern uschar *dkim_signing_domain;    /* Expansion variable, domain used for signing a message. */
 305 extern uschar *dkim_signing_selector;  /* Expansion variable, selector used for signing a message. */
 306 extern uschar *dkim_verify_signers;    /* Colon-separated list of domains for each of which we call the DKIM ACL */
 307 extern BOOL    dkim_collect_input;     /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
 308 extern BOOL    dkim_disable_verify;    /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
 309 #endif
 310
 311 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 312 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 313 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 314 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 315 extern int     dns_retrans;            /* Retransmission time setting */
 316 extern int     dns_retry;              /* Number of retries */
 317 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 318 extern uschar *dnslist_matched;        /* DNS (black) list matched key */
 319 extern uschar *dnslist_text;           /* DNS (black) list text message */
 320 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 321 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 322 extern int     domainlist_count;       /* Number defined */
 323 extern BOOL    dont_deliver;           /* TRUE for -N option */
 324 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 325
 326 /* This option is now a no-opt, retained for compatibility */
 327 extern BOOL    drop_cr;                /* For broken local MUAs */
 328
 329 extern uschar *dsn_from;               /* From: string for DSNs */
 330
 331 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 332 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 333 extern int     errno_quota;            /* Quota errno in this OS */
 334 extern int     error_handling;         /* Error handling style */
 335 extern uschar *errors_copy;            /* For taking copies of errors */
 336 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 337 extern int     errors_sender_rc;       /* Return after message to sender*/
 338 extern gid_t   exim_gid;               /* To be used with exim_uid */
 339 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 340 extern uschar *exim_path;              /* Path to exec exim */
 341 extern uid_t   exim_uid;               /* Non-root uid for exim */
 342 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 343 extern int     expand_forbid;          /* RDO flags for forbidding things */
 344 extern int     expand_nlength[];       /* Lengths of numbered strings */
 345 extern int     expand_nmax;            /* Max numerical value */
 346 extern uschar *expand_nstring[];       /* Numbered strings */
 347 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 348 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 349 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 350
 351 extern int     fake_response;          /* Fake FAIL or DEFER response to data */
 352 extern uschar *fake_response_text;     /* User defined message for the above. Default is in globals.c. */
 353 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 354 extern BOOL    filter_running;         /* TRUE while running a filter */
 355 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 356 extern int     filter_test;            /* Filter test type */
 357 extern uschar *filter_test_sfile;      /* System filter test file */
 358 extern uschar *filter_test_ufile;      /* User filter test file */
 359 extern uschar *filter_thisaddress;     /* For address looping */
 360 extern int     finduser_retries;       /* Retry count for getpwnam() */
 361 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 362 #ifdef WITH_OLD_DEMIME
 363 extern uschar *found_extension;        /* demime acl condition: file extension found */
 364 #endif
 365 extern uschar *freeze_tell;            /* Message on (some) freezings */
 366 extern uschar *freeze_tell_config;     /* The configured setting */
 367 extern uschar *fudged_queue_times;     /* For use in test harness */
 368
 369 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 370 extern uschar *gecos_pattern;          /* Pattern to match */
 371 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 372
 373 extern int     header_insert_maxlen;   /* Max for inserting headers */
 374 extern int     header_maxsize;         /* Max total length for header */
 375 extern int     header_line_maxsize;    /* Max for an individual line */
 376 extern header_name header_names[];     /* Table of header names */
 377 extern int     header_names_size;      /* Number of entries */
 378 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 379 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 380 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 381 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 382 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 383 extern BOOL    helo_verified;          /* True if HELO verified */
 384 extern BOOL    helo_verify_failed;     /* True if attempt failed */
 385 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 386 extern uschar *hex_digits;             /* Used in several places */
 387 extern uschar *hold_domains;           /* Hold up deliveries to these */
 388 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 389 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 390 extern uschar *host_data;              /* Obtained from lookup in ACL */
 391 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 392 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 393 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 394 extern uschar *host_lookup_order;      /* Order of host lookup types */
 395 extern uschar *host_lookup_msg;        /* Text for why it failed */
 396 extern int     host_number;            /* For sharing spools */
 397 extern uschar *host_number_string;     /* For expanding */
 398 extern uschar *host_reject_connection; /* Reject these hosts */
 399 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 400 extern int     hostlist_count;         /* Number defined */
 401 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 402 extern uschar *hosts_treat_as_local;   /* For routing */
 403
 404 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 405 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 406 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 407 extern BOOL    is_inetd;               /* True for inetd calls */
 408 extern uschar *iterate_item;           /* Item from iterate list */
 409
 410 extern int     journal_fd;             /* Fd for journal file */
 411
 412 extern int     keep_malformed;         /* Time to keep malformed messages */
 413
 414 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 415 extern int     load_average;           /* Most recently read load average */
 416 extern BOOL    local_error_message;    /* True if handling one of these */
 417 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 418 extern uschar *local_from_prefix;      /* Permitted prefixes */
 419 extern uschar *local_from_suffix;      /* Permitted suffixes */
 420 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 421 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 422 extern optionlist local_scan_options[];/* Option list for local_scan() */
 423 extern int     local_scan_options_count; /* Size of the list */
 424 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 425 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 426 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 427 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 428 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 429 extern int     localpartlist_count;    /* Number defined */
 430 extern uschar *log_buffer;             /* For constructing log entries */
 431 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 432 extern uschar *log_file_path;          /* If unset, use default */
 433 extern bit_table log_options[];        /* Table of options */
 434 extern int     log_options_count;      /* Size of table */
 435 extern int     log_reject_target;      /* Target log for ACL rejections */
 436 extern uschar *log_selector_string;    /* As supplied in the config */
 437 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 438 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 439 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 440 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 441 extern uschar *login_sender_address;   /* The actual sender address */
 442 extern lookup_info lookup_list[];      /* Vector of available lookups */
 443 extern int     lookup_list_count;      /* Number of entries in the list */
 444 extern int     lookup_open_max;        /* Max lookup files to cache */
 445 extern uschar *lookup_value;           /* Value looked up from file */
 446
 447 extern macro_item *macros;             /* Configuration macros */
 448 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 449 #ifdef WITH_CONTENT_SCAN
 450 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 451 #endif
 452 extern int     max_received_linelength;/* What it says */
 453 extern int     max_username_length;    /* For systems with broken getpwnam() */
 454 extern int     message_age;            /* In seconds */
 455 extern uschar *message_body;           /* Start of message body for filter */
 456 extern uschar *message_body_end;       /* End of message body for filter */
 457 extern BOOL    message_body_newlines;  /* FALSE => remove newlines */
 458 extern int     message_body_size;      /* Sic */
 459 extern int     message_body_visible;   /* Amount visible in message_body */
 460 extern int     message_ended;          /* State of message reading and how ended */
 461 extern uschar *message_headers;        /* When built */
 462 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 463 extern uschar *message_id_external;    /* External form of following */
 464 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 465 extern uschar *message_id_text;        /* Expanded to form message_id */
 466 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 467 extern int     message_linecount;      /* As it says */
 468 extern BOOL    message_logs;           /* TRUE to write message logs */
 469 extern int     message_size;           /* Size of message */
 470 extern uschar *message_size_limit;     /* As it says */
 471 extern uschar  message_subdir[];       /* Subdirectory for messages */
 472 extern uschar *message_reference;      /* Reference for error messages */
 473
 474 /* MIME ACL expandables */
 475 #ifdef WITH_CONTENT_SCAN
 476 extern int     mime_anomaly_level;
 477 extern uschar *mime_anomaly_text;
 478 extern uschar *mime_boundary;
 479 extern uschar *mime_charset;
 480 extern uschar *mime_content_description;
 481 extern uschar *mime_content_disposition;
 482 extern uschar *mime_content_id;
 483 extern unsigned int mime_content_size;
 484 extern uschar *mime_content_transfer_encoding;
 485 extern uschar *mime_content_type;
 486 extern uschar *mime_decoded_filename;
 487 extern uschar *mime_filename;
 488 extern int     mime_is_multipart;
 489 extern int     mime_is_coverletter;
 490 extern int     mime_is_rfc822;
 491 extern int     mime_part_count;
 492 #endif
 493
 494 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 495
 496 extern uid_t  *never_users;            /* List of uids never to be used */
 497 #ifdef WITH_CONTENT_SCAN
 498 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 499 #endif
 500 extern BOOL    no_multiline_responses; /* For broken clients */
 501
 502 extern optionlist optionlist_auths[];      /* These option lists are made */
 503 extern int     optionlist_auths_size;      /* global so that readconf can */
 504 extern optionlist optionlist_routers[];    /* see them for printing out   */
 505 extern int     optionlist_routers_size;    /* the options.                */
 506 extern optionlist optionlist_transports[];
 507 extern int     optionlist_transports_size;
 508
 509 extern uid_t   original_euid;          /* Original effective uid */
 510 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 511 extern uschar *originator_login;       /* Login of same */
 512 extern uschar *originator_name;        /* Full name of same */
 513 extern uid_t   originator_uid;         /* Uid of ditto */
 514 extern uschar *override_local_interfaces; /* Value of -oX argument */
 515 extern uschar *override_pid_file_path; /* Value of -oP argument */
 516
 517 extern BOOL    parse_allow_group;      /* Allow group syntax */
 518 extern BOOL    parse_found_group;      /* In the middle of a group */
 519 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 520 extern uschar *pid_file_path;          /* For writing daemon pids */
 521 extern uschar *pipelining_advertise_hosts; /* As it says */
 522 extern BOOL    pipelining_enable;      /* As it says */
 523 extern BOOL    preserve_message_logs;  /* Save msglog files */
 524 extern uschar *primary_hostname;       /* Primary name of this computer */
 525 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 526 extern uschar  process_info[];         /* For SIGUSR1 output */
 527 extern uschar *process_log_path;       /* Alternate path */
 528 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 529 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 530 extern uschar *prvscheck_keynum;       /* Set during prvscheck expansion item */
 531 extern uschar *prvscheck_result;       /* Set during prvscheck expansion item */
 532
 533 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 534 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 535 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 536 extern uschar *queue_domains;          /* Queue these domains */
 537 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 538 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 539 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 540 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 541 extern BOOL    queue_running;          /* TRUE for queue running process and */
 542                                        /*   immediate children */
 543 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 544 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 545 extern int     queue_interval;         /* Queue running interval */
 546 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 547 extern int     queue_only_load;        /* Max load before auto-queue */
 548 extern BOOL    queue_only_load_latch;  /* Latch queue_only_load TRUE */
 549 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 550 extern BOOL    queue_only_override;    /* Allow override from command line */
 551 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 552 extern BOOL    queue_run_in_order;     /* As opposed to random */
 553 extern int     queue_run_max;          /* Max queue runners */
 554 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 555 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 556
 557 extern unsigned int random_seed;       /* Seed for random numbers */
 558 extern tree_node *ratelimiters_cmd;    /* Results of command ratelimit checks */
 559 extern tree_node *ratelimiters_conn;   /* Results of connection ratelimit checks */
 560 extern tree_node *ratelimiters_mail;   /* Results of per-mail ratelimit checks */
 561 extern uschar *raw_active_hostname;    /* Pre-expansion */
 562 extern uschar *raw_sender;             /* Before rewriting */
 563 extern uschar **raw_recipients;        /* Before rewriting */
 564 extern int     raw_recipients_count;
 565 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 566 extern int     rcpt_fail_count;        /* Those that got 5xx */
 567 extern int     rcpt_defer_count;       /* Those that got 4xx */
 568 extern gid_t   real_gid;               /* Real gid */
 569 extern uid_t   real_uid;               /* Real user running program */
 570 extern BOOL    really_exim;            /* FALSE in utilities */
 571 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 572 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 573 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 574 extern int     receive_timeout;        /* For non-SMTP acceptance */
 575 extern int     received_count;         /* Count of Received: headers */
 576 extern uschar *received_for;           /* For "for" field */
 577 extern uschar *received_header_text;   /* Definition of Received: header */
 578 extern int     received_headers_max;   /* Max count of Received: headers */
 579 extern int     received_time;          /* Time the message was received */
 580 extern uschar *recipient_data;         /* lookup data for recipients */
 581 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 582 extern uschar *recipient_verify_failure; /* What went wrong */
 583 extern BOOL    recipients_discarded;   /* By an ACL */
 584 extern int     recipients_list_max;    /* Maximum number fitting in list */
 585 extern int     recipients_max;         /* Max permitted */
 586 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 587 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 588 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 589 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 590 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 591 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 592 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 593 extern const pcre  *regex_smtp_code;   /* For recognizing SMTP codes */
 594 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 595 #ifdef WITH_CONTENT_SCAN
 596 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 597 #endif
 598 extern int     remote_delivery_count;  /* Number of remote addresses */
 599 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 600 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 601 extern retry_config *retries;          /* Chain of retry config information */
 602 extern int     retry_data_expire;      /* When to expire retry data */
 603 extern int     retry_interval_max;     /* Absolute maximum */
 604 extern int     retry_maximum_timeout;  /* The maximum timeout */
 605 extern uschar *return_path;            /* Return path for a message */
 606 extern BOOL    return_path_remove;     /* Remove return-path headers */
 607 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 608 extern uschar *rfc1413_hosts;          /* RFC hosts */
 609 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 610 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 611 extern uid_t   root_uid;               /* The uid for root */
 612 extern router_info routers_available[];/* Vector of available routers */
 613 extern router_instance *routers;       /* Chain of instantiated routers */
 614 extern router_instance router_defaults;/* Default values */
 615 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 616 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 617 extern uschar *running_status;         /* Flag string for testing */
 618 extern int     runrc;                  /* rc from ${run} */
 619
 620 extern uschar *search_error_message;   /* Details of lookup problem */
 621 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 622 extern uschar *self_hostname;          /* Self host after routing->directors */
 623 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 624 extern uschar *sender_address_data;    /* address_data from sender verify */
 625 extern BOOL    sender_address_forced;  /* Set by -f */
 626 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 627 extern uschar *sender_data;            /* lookup result for senders */
 628 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 629 extern uschar *sender_fullhost;        /* Sender host name + address */
 630 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 631 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 632 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 633 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 634 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 635 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 636 extern BOOL    sender_local;           /* TRUE for local senders */
 637 extern BOOL    sender_name_forced;     /* Set by -F */
 638 extern uschar *sender_rate;            /* Sender rate computed by ACL */
 639 extern uschar *sender_rate_limit;      /* Configured rate limit */
 640 extern uschar *sender_rate_period;     /* Configured smoothing period */
 641 extern uschar *sender_rcvhost;         /* Host data for Received: */
 642 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 643 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 644 extern uschar *sender_verify_failure;  /* What went wrong */
 645 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 646 extern address_item *sender_verified_failed; /* The one that caused denial */
 647 extern uschar *sending_ip_address;     /* Address of outgoing (SMTP) interface */
 648 extern int     sending_port;           /* Port of outgoing interface */
 649 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 650 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 651 extern int     smtp_accept_count;      /* Count of connections */
 652 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 653 extern int     smtp_accept_max;        /* Max SMTP connections */
 654 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 655 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 656 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 657 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 658 extern int     smtp_accept_queue;      /* Queue after so many connections */
 659 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 660 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 661 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 662 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 663 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 664 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 665 extern int     smtp_ch_index;          /* Index in smtp_connection_had */
 666 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 667 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */
 668 extern time_t  smtp_connection_start;  /* Start time of SMTP connection */
 669 extern uschar  smtp_connection_had[];  /* Recent SMTP commands */
 670 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 671 extern double  smtp_delay_mail;        /* Current MAIL delay */
 672 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 673 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 674 extern uschar *smtp_etrn_command;      /* Command to run */
 675 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 676 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 677 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 678 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 679 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 680 extern int     smtp_max_unknown_commands; /* As it says */
 681 extern uschar *smtp_notquit_reason;    /* Global for disconnect reason */
 682 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 683 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 684 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 685 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 686 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 687 extern int     smtp_receive_timeout;   /* Applies to each received line */
 688 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 689 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 690 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 691 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 692 extern int     smtp_rlm_limit;         /* Max delay */
 693 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 694 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 695 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 696 extern int     smtp_rlr_limit;         /* Max delay */
 697 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 698 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 699 extern BOOL    smtp_use_size;          /* Global for passed connections */
 700
 701 #ifdef WITH_CONTENT_SCAN
 702 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 703 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 704 extern uschar *spam_report;            /* the spamd report (multiline) */
 705 extern uschar *spam_score;             /* the spam score (float) */
 706 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 707 #endif
 708 #ifdef EXPERIMENTAL_SPF
 709 extern uschar *spf_guess;              /* spf best-guess record */
 710 extern uschar *spf_header_comment;     /* spf header comment */
 711 extern uschar *spf_received;           /* Received-SPF: header */
 712 extern uschar *spf_result;             /* spf result in string form */
 713 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 714 #endif
 715 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 716 extern uschar *spool_directory;        /* Name of spool directory */
 717 #ifdef EXPERIMENTAL_SRS
 718 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 719 extern uschar *srs_db_address;         /* SRS db address */
 720 extern uschar *srs_db_key;             /* SRS db key */
 721 extern int     srs_hashlength;         /* SRS hash length */
 722 extern int     srs_hashmin;            /* SRS minimum hash length */
 723 extern int     srs_maxage;             /* SRS max age */
 724 extern uschar *srs_orig_sender;        /* SRS original sender */
 725 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 726 extern uschar *srs_recipient;          /* SRS recipient */
 727 extern uschar *srs_secrets;            /* SRS secrets list */
 728 extern uschar *srs_status;             /* SRS staus */
 729 extern BOOL    srs_usehash;            /* SRS use hash flag */
 730 extern BOOL    srs_usetimestamp;       /* SRS use timestamp flag */
 731 #endif
 732 extern BOOL    strict_acl_vars;        /* ACL variables have to be set before being used */
 733 extern int     string_datestamp_offset;/* After insertion by string_format */
 734 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 735 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 736 extern uschar *submission_domain;      /* Domain for submission mode */
 737 extern BOOL    submission_mode;        /* Can be forced from ACL */
 738 extern uschar *submission_name;        /* User name set from ACL */
 739 extern BOOL    suppress_local_fixups;  /* Can be forced from ACL */
 740 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 741 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 742 extern int     syslog_facility;        /* As defined by Syslog.h */
 743 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 744 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 745 extern uschar *system_filter;          /* Name of system filter file */
 746
 747 extern uschar *system_filter_directory_transport;  /* Transports for the */
 748 extern uschar *system_filter_file_transport;       /* system filter */
 749 extern uschar *system_filter_pipe_transport;
 750 extern uschar *system_filter_reply_transport;
 751
 752 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 753 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 754 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 755 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 756 extern BOOL    system_filtering;       /* TRUE when running system filter */
 757
 758 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 759 extern int     test_harness_load_avg;  /* For use when testing */
 760 extern int     thismessage_size_limit; /* Limit for this message */
 761 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 762 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 763 extern int     transport_count;        /* Count of bytes transported */
 764 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 765 extern int     transport_filter_timeout; /* Timeout for same */
 766 extern BOOL    transport_filter_timed_out; /* True if it did */
 767
 768 extern transport_info transports_available[]; /* Vector of available transports */
 769 extern transport_instance *transports; /* Chain of instantiated transports */
 770 extern transport_instance transport_defaults; /* Default values */
 771
 772 extern int     transport_write_timeout;/* Set to time out individual writes */
 773
 774 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 775 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 776 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 777 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 778
 779 extern BOOL    trusted_caller;         /* Caller is trusted */
 780 extern gid_t  *trusted_groups;         /* List of trusted groups */
 781 extern uid_t  *trusted_users;          /* List of trusted users */
 782 extern uschar *timezone_string;        /* Required timezone setting */
 783
 784 extern uschar *unknown_login;          /* To use when login id unknown */
 785 extern uschar *unknown_username;       /* Ditto */
 786 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 787 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 788 extern uschar *uucp_from_sender;       /* For building the sender */
 789
 790 extern uschar *warn_message_file;      /* Template for warning messages */
 791 extern uschar *warnmsg_delay;          /* String form of delay time */
 792 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 793 extern BOOL    write_rejectlog;        /* Control of reject logging */
 794
 795 extern uschar *version_copyright;      /* Copyright notice */
 796 extern uschar *version_date;           /* Date of compilation */
 797 extern uschar *version_cnumber;        /* Compile number */
 798 extern uschar *version_string;         /* Version string */
 799
 800 extern int     warning_count;          /* Delay warnings sent for this msg */
 801
 802 /* End of globals.h */