src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.14 2005/04/04 10:33:49 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2005 */
   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 SUPPORT_MOVE_FROZEN_MESSAGES
  55 extern BOOL    move_frozen_messages;   /* Get them out of the normal directory */
  56 #endif
  57
  58 /* These variables are outside the #ifdef because it keeps the code less
  59 cluttered in several places (e.g. during logging) if we can always refer to
  60 them. Also, the tls_ variables are now always visible. */
  61
  62 extern int     tls_active;             /* fd/socket when in a TLS session */
  63 extern BOOL    tls_certificate_verified; /* Client certificate verified */
  64 extern uschar *tls_cipher;             /* Cipher used */
  65 extern BOOL    tls_on_connect;         /* For older MTAs that don't STARTTLS */
  66 extern uschar *tls_on_connect_ports;   /* Ports always tls-on-connect */
  67 extern uschar *tls_peerdn;             /* DN from peer */
  68
  69 #ifdef SUPPORT_TLS
  70 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
  71 extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */
  72 extern uschar *tls_certificate;        /* Certificate file */
  73 extern uschar *tls_crl;                /* CRL File */
  74 extern uschar *tls_dhparam;            /* DH param file */
  75 extern BOOL    tls_offered;            /* Server offered TLS */
  76 extern uschar *tls_privatekey;         /* Private key file */
  77 extern BOOL    tls_remember_esmtp;     /* For YAEB */
  78 extern uschar *tls_require_ciphers;    /* So some can be avoided */
  79 extern uschar *tls_try_verify_hosts;   /* Optional client verification */
  80 extern uschar *tls_verify_certificates;/* Path for certificates to check */
  81 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
  82 #endif
  83
  84
  85 /* Input-reading functions for messages, so we can use special ones for
  86 incoming TCP/IP. */
  87
  88 extern int (*receive_getc)(void);
  89 extern int (*receive_ungetc)(int);
  90 extern int (*receive_feof)(void);
  91 extern int (*receive_ferror)(void);
  92
  93
  94 /* For clearing, saving, restoring address expansion variables. We have to have
  95 the size of this vector set explicitly, because it is referenced from more than
  96 one module. */
  97
  98 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
  99
 100 /* General global variables */
 101
 102 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
 103 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 104 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 105 #ifdef WITH_CONTENT_SCAN
 106 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */
 107 #endif
 108 extern uschar *acl_smtp_auth;          /* ACL run for AUTH */
 109 extern uschar *acl_smtp_connect;       /* ACL run on SMTP connection */
 110 extern uschar *acl_smtp_data;          /* ACL run after DATA received */
 111 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 112 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 113 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 114 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 115 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 116 #ifdef WITH_CONTENT_SCAN
 117 extern uschar *acl_smtp_mime;          /* ACL run after DATA, before acl_smtp_data, for each MIME part */
 118 #endif
 119 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 120 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 121 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 122 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 123 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 124 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 125 extern uschar *acl_var[ACL_C_MAX+ACL_M_MAX]; /* User variables */
 126 extern uschar *acl_verify_message;     /* User message for verify failure */
 127 extern header_line *acl_warn_headers;  /* Warning headers added by ACL */
 128 extern string_item *acl_warn_logged;   /* Logged lines */
 129 extern int     acl_wherecodes[];       /* Response codes for ACL fails */
 130 extern uschar *acl_wherenames[];       /* Names for messages */
 131 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 132 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 133 extern address_item *addr_duplicate;   /* Duplicate address list */
 134 extern address_item address_defaults;  /* Default data for address item */
 135 extern uschar *address_file;           /* Name of file when delivering to one */
 136 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 137 extern BOOL    address_test_mode;      /* True for -bt */
 138 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 139 extern int     addresslist_count;      /* Number defined */
 140 extern gid_t  *admin_groups;           /* List of admin groups */
 141 extern BOOL    admin_user;             /* True if caller can do admin */
 142 extern BOOL    allow_domain_literals;  /* As it says */
 143 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 144 extern BOOL    allow_unqualified_recipient; /* As it says */
 145 extern BOOL    allow_unqualified_sender; /* Ditto */
 146 extern BOOL    allow_utf8_domains;     /* For experimenting */
 147 extern uschar *authenticated_id;       /* ID that was authenticated */
 148 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 149 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 150 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 151 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 152 extern auth_instance *auths;           /* Chain of instantiated auths */
 153 extern auth_instance auth_defaults;    /* Default values */
 154 extern uschar *auth_defer_msg;         /* Error message for log */
 155 extern uschar *auth_defer_user_msg;    /* Error message for user */
 156 extern int     auto_thaw;              /* Auto-thaw interval */
 157 #ifdef WITH_CONTENT_SCAN
 158 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 159 #endif
 160
 161 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 162 extern uschar *base62_chars;           /* Table of base-62 characters */
 163 extern uschar *bi_command;             /* Command for -bi option */
 164 extern uschar *big_buffer;             /* Used for various temp things */
 165 extern int     big_buffer_size;        /* Current size (can expand) */
 166 #ifdef EXPERIMENTAL_BRIGHTMAIL
 167 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 168 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 169 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 170 extern uschar *bmi_config_file;        /* Brightmail config file */
 171 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 172 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 173 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 174 #endif
 175 extern int     body_linecount;         /* Line count in body */
 176 extern int     body_zerocount;         /* Binary zero count in body */
 177 extern uschar *bounce_message_file;    /* Template file */
 178 extern uschar *bounce_message_text;    /* One-liner */
 179 extern uschar *bounce_recipient;       /* When writing an errmsg */
 180 extern BOOL    bounce_return_body;     /* Include body in returned message */
 181 extern BOOL    bounce_return_message;  /* Include message in bounce */
 182 extern int     bounce_return_size_limit; /* Max amount to return */
 183 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 184 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 185
 186 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 187 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 188 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 189 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 190 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 191 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 192 extern int     check_log_inodes;       /* Minimum for message acceptance */
 193 extern int     check_log_space;        /* Minimum for message acceptance */
 194 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 195 extern int     check_spool_space;      /* Minimum for message acceptance */
 196 extern int     clmacro_count;          /* Number of command line macros */
 197 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 198 extern int     connection_max_messages;/* Max down one SMTP connection */
 199 extern BOOL    config_changed;         /* True if -C used */
 200 extern FILE   *config_file;            /* Configuration file */
 201 extern uschar *config_filename;        /* Configuration file name */
 202 #ifdef CONFIGURE_GROUP
 203 extern gid_t   config_gid;             /* Additional group owner */
 204 #endif
 205 extern int     config_lineno;          /* Line number */
 206 extern uschar *config_main_filelist;   /* List of possible config files */
 207 extern uschar *config_main_filename;   /* File name actually used */
 208 #ifdef CONFIGURE_OWNER
 209 extern uid_t   config_uid;             /* Additional owner */
 210 #endif
 211 extern uschar *continue_hostname;      /* Host for continued delivery */
 212 extern uschar *continue_host_address;  /* IP address for ditto */
 213 extern BOOL    continue_more;          /* Flag more addresses waiting */
 214 extern int     continue_sequence;      /* Sequence num for continued delivery */
 215 extern uschar *continue_transport;     /* Transport for continued delivery */
 216
 217 extern BOOL    daemon_listen;          /* True if listening required */
 218 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 219 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 220 extern int     debug_fd;               /* The fd for debug_file */
 221 extern FILE   *debug_file;             /* Where to write debugging info */
 222 extern bit_table debug_options[];      /* Table of debug options */
 223 extern int     debug_options_count;    /* Size of table */
 224 extern int     delay_warning[];        /* Times between warnings */
 225 extern uschar *delay_warning_condition; /* Condition string for warnings */
 226 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 227
 228 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 229 extern int     deliver_datafile;       /* FD for data part of message */
 230 extern uschar *deliver_domain;         /* The local domain for delivery */
 231 extern uschar *deliver_domain_data;    /* From domain lookup */
 232 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 233 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 234 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 235 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 236 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 237 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 238 extern int     deliver_frozen_at;      /* Time of freezing */
 239 extern uschar *deliver_home;           /* Home directory for pipes */
 240 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 241                                        /* Remote host for filter */
 242 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 243 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 244 extern ino_t   deliver_inode;          /* Inode for appendfile */
 245 extern uschar *deliver_localpart;      /* The local part for delivery */
 246 extern uschar *deliver_localpart_data; /* From local part lookup */
 247 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 248 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 249 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 250 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 251 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 252 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 253 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 254 extern int     deliver_queue_load_max; /* Different value for queue running */
 255 extern address_item *deliver_recipients; /* Current set of addresses */
 256 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 257 extern BOOL    deliver_selectstring_regex; /* String is regex */
 258 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 259 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 260 #ifdef WITH_OLD_DEMIME
 261 extern int     demime_errorlevel;      /* Severity of MIME error */
 262 extern int     demime_ok;              /* Nonzero if message has been demimed */
 263 extern uschar *demime_reason;          /* Reason for broken MIME container */
 264 #endif
 265 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 266
 267 #ifdef EXPERIMENTAL_DOMAINKEYS
 268 extern uschar *dk_signing_domain;      /* Domain used for signing a message. */
 269 extern uschar *dk_signing_selector;    /* Selector used for signing a message. */
 270 extern int     dk_do_verify;           /* DK verification switch. Set with ACL control statement. */
 271 #endif
 272
 273 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 274 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 275 extern int     dns_retrans;            /* Retransmission time setting */
 276 extern int     dns_retry;              /* Number of retries */
 277 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 278 extern uschar *dnslist_text;           /* DNS (black) list text message */
 279 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 280 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 281 extern int     domainlist_count;       /* Number defined */
 282 extern BOOL    dont_deliver;           /* TRUE for -N option */
 283 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 284
 285 /* This option is now a no-opt, retained for compatibility */
 286 extern BOOL    drop_cr;                /* For broken local MUAs */
 287
 288 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 289 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 290 extern int     errno_quota;            /* Quota errno in this OS */
 291 extern int     error_handling;         /* Error handling style */
 292 extern uschar *errors_copy;            /* For taking copies of errors */
 293 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 294 extern int     errors_sender_rc;       /* Return after message to sender*/
 295 extern gid_t   exim_gid;               /* To be used with exim_uid */
 296 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 297 extern uschar *exim_path;              /* Path to exec exim */
 298 extern uid_t   exim_uid;               /* Non-root uid for exim */
 299 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 300 extern int     expand_forbid;          /* RDO flags for forbidding things */
 301 extern int     expand_nlength[];       /* Lengths of numbered strings */
 302 extern int     expand_nmax;            /* Max numerical value */
 303 extern uschar *expand_nstring[];       /* Numbered strings */
 304 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 305 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 306 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 307
 308 extern BOOL    fake_reject;            /* TRUE if fake reject is to be given */
 309 extern uschar *fake_reject_text;       /* Option for the fakereject control statement: can contain user defined message. Default is in globals.c. */
 310 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 311 extern BOOL    filter_running;         /* TRUE while running a filter */
 312 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 313 extern int     filter_test;            /* Filter test type */
 314 extern uschar *filter_test_sfile;      /* System filter test file */
 315 extern uschar *filter_test_ufile;      /* User filter test file */
 316 extern uschar *filter_thisaddress;     /* For address looping */
 317 extern int     finduser_retries;       /* Retry count for getpwnam() */
 318 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 319 #ifdef WITH_OLD_DEMIME
 320 extern uschar *found_extension;        /* demime acl condition: file extension found */
 321 #endif
 322 extern uschar *freeze_tell;            /* Message on (some) freezings */
 323 extern uschar *fudged_queue_times;     /* For use in test harness */
 324
 325 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 326 extern uschar *gecos_pattern;          /* Pattern to match */
 327 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 328
 329 extern int     header_insert_maxlen;   /* Max for inserting headers */
 330 extern int     header_maxsize;         /* Max total length for header */
 331 extern int     header_line_maxsize;    /* Max for an individual line */
 332 extern header_name header_names[];     /* Table of header names */
 333 extern int     header_names_size;      /* Number of entries */
 334 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 335 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 336 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 337 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 338 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 339 extern BOOL    helo_verified;          /* True if HELO verified */
 340 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 341 extern uschar *hex_digits;             /* Used in several places */
 342 extern uschar *hold_domains;           /* Hold up deliveries to these */
 343 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 344 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 345 extern uschar *host_data;              /* Obtained from lookup in ACL */
 346 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 347 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 348 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 349 extern uschar *host_lookup_order;      /* Order of host lookup types */
 350 extern uschar *host_lookup_msg;        /* Text for why it failed */
 351 extern int     host_number;            /* For sharing spools */
 352 extern uschar *host_number_string;     /* For expanding */
 353 extern uschar *host_reject_connection; /* Reject these hosts */
 354 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 355 extern int     hostlist_count;         /* Number defined */
 356 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 357 extern uschar *hosts_treat_as_local;   /* For routing */
 358
 359 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 360 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 361 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 362 extern BOOL    is_inetd;               /* True for inetd calls */
 363
 364 extern int     journal_fd;             /* Fd for journal file */
 365
 366 extern int     keep_malformed;         /* Time to keep malformed messages */
 367
 368 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 369 extern int     load_average;           /* Most recently read load average */
 370 extern BOOL    local_error_message;    /* True if handling one of these */
 371 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 372 extern uschar *local_from_prefix;      /* Permitted prefixes */
 373 extern uschar *local_from_suffix;      /* Permitted suffixes */
 374 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 375 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 376 extern optionlist local_scan_options[];/* Option list for local_scan() */
 377 extern int     local_scan_options_count; /* Size of the list */
 378 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 379 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 380 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 381 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 382 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 383 extern int     localpartlist_count;    /* Number defined */
 384 extern uschar *log_buffer;             /* For constructing log entries */
 385 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 386 extern uschar *log_file_path;          /* If unset, use default */
 387 extern bit_table log_options[];        /* Table of options */
 388 extern int     log_options_count;      /* Size of table */
 389 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 390 extern uschar *log_selector_string;    /* As supplied in the config */
 391 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 392 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 393 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 394 extern uschar *login_sender_address;   /* The actual sender address */
 395 extern lookup_info lookup_list[];      /* Vector of available lookups */
 396 extern int     lookup_list_count;      /* Number of entries in the list */
 397 extern int     lookup_open_max;        /* Max lookup files to cache */
 398 extern uschar *lookup_value;           /* Value looked up from file */
 399
 400 extern macro_item *macros;             /* Configuration macros */
 401 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 402 #ifdef WITH_CONTENT_SCAN
 403 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 404 #endif
 405 extern int     max_username_length;    /* For systems with broken getpwnam() */
 406 extern int     message_age;            /* In seconds */
 407 extern uschar *message_body;           /* Start of message body for filter */
 408 extern uschar *message_body_end;       /* End of message body for filter */
 409 extern int     message_body_size;      /* Sic */
 410 extern int     message_body_visible;   /* Amount visible in message_body */
 411 extern int     message_ended;          /* State of message reading and how ended */
 412 extern uschar *message_headers;        /* When built */
 413 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 414 extern uschar *message_id_external;    /* External form of following */
 415 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 416 extern uschar *message_id_text;        /* Expanded to form message_id */
 417 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 418 extern int     message_linecount;      /* As it says */
 419 extern BOOL    message_logs;           /* TRUE to write message logs */
 420 extern int     message_size;           /* Size of message */
 421 extern uschar *message_size_limit;     /* As it says */
 422 extern uschar  message_subdir[];       /* Subdirectory for messages */
 423 extern uschar *message_reference;      /* Reference for error messages */
 424
 425 /* MIME ACL expandables */
 426 #ifdef WITH_CONTENT_SCAN
 427 extern int     mime_anomaly_level;
 428 extern uschar *mime_anomaly_text;
 429 extern uschar *mime_boundary;
 430 extern uschar *mime_charset;
 431 extern uschar *mime_content_description;
 432 extern uschar *mime_content_disposition;
 433 extern uschar *mime_content_id;
 434 extern unsigned int mime_content_size;
 435 extern uschar *mime_content_transfer_encoding;
 436 extern uschar *mime_content_type;
 437 extern uschar *mime_decoded_filename;
 438 extern uschar *mime_filename;
 439 extern int     mime_is_multipart;
 440 extern int     mime_is_coverletter;
 441 extern int     mime_is_rfc822;
 442 extern int     mime_part_count;
 443 #endif
 444
 445 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 446
 447 extern uid_t  *never_users;            /* List of uids never to be used */
 448 #ifdef WITH_CONTENT_SCAN
 449 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 450 #endif
 451 extern BOOL    no_multiline_responses; /* For broken clients */
 452
 453 extern optionlist optionlist_auths[];      /* These option lists are made */
 454 extern int     optionlist_auths_size;      /* global so that readconf can */
 455 extern optionlist optionlist_routers[];    /* see them for printing out   */
 456 extern int     optionlist_routers_size;    /* the options.                */
 457 extern optionlist optionlist_transports[];
 458 extern int     optionlist_transports_size;
 459
 460 extern uid_t   original_euid;          /* Original effective uid */
 461 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 462 extern uschar *originator_login;       /* Login of same */
 463 extern uschar *originator_name;        /* Full name of same */
 464 extern uid_t   originator_uid;         /* Uid of ditto */
 465 extern uschar *override_local_interfaces; /* Value of -oX argument */
 466 extern uschar *override_pid_file_path; /* Value of -oP argument */
 467
 468 extern BOOL    parse_allow_group;      /* Allow group syntax */
 469 extern BOOL    parse_found_group;      /* In the middle of a group */
 470 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 471 extern uschar *pid_file_path;          /* For writing daemon pids */
 472 extern uschar *pipelining_advertise_hosts; /* As it says */
 473 extern BOOL    preserve_message_logs;  /* Save msglog files */
 474 extern uschar *primary_hostname;       /* Primary name of this computer */
 475 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 476 extern uschar  process_info[];         /* For SIGUSR1 output */
 477 extern uschar *process_log_path;       /* Alternate path */
 478 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 479
 480 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 481 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 482 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 483 extern uschar *queue_domains;          /* Queue these domains */
 484 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 485 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 486 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 487 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 488 extern BOOL    queue_running;          /* TRUE for queue running process and */
 489                                        /*   immediate children */
 490 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 491 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 492 extern int     queue_interval;         /* Queue running interval */
 493 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 494 extern int     queue_only_load;        /* Max load before auto-queue */
 495 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 496 extern BOOL    queue_only_override;    /* Allow override from command line */
 497 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 498 extern BOOL    queue_run_in_order;     /* As opposed to random */
 499 extern int     queue_run_max;          /* Max queue runners */
 500 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 501 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 502
 503 extern unsigned int random_seed;       /* Seed for random numbers */
 504 extern uschar *raw_active_hostname;    /* Pre-expansion */
 505 extern uschar *raw_sender;             /* Before rewriting */
 506 extern uschar **raw_recipients;        /* Before rewriting */
 507 extern int     raw_recipients_count;
 508 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 509 extern int     rcpt_fail_count;        /* Those that got 5xx */
 510 extern int     rcpt_defer_count;       /* Those that got 4xx */
 511 extern gid_t   real_gid;               /* Real gid */
 512 extern uid_t   real_uid;               /* Real user running program */
 513 extern BOOL    really_exim;            /* FALSE in utilities */
 514 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 515 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 516 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 517 extern int     receive_timeout;        /* For non-SMTP acceptance */
 518 extern int     received_count;         /* Count of Received: headers */
 519 extern uschar *received_for;           /* For "for" field */
 520 extern uschar *received_header_text;   /* Definition of Received: header */
 521 extern int     received_headers_max;   /* Max count of Received: headers */
 522 extern int     received_time;          /* Time the message was received */
 523 extern uschar *recipient_data;         /* lookup data for recipients */
 524 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 525 extern uschar *recipient_verify_failure; /* What went wrong */
 526 extern BOOL    recipients_discarded;   /* By an ACL */
 527 extern int     recipients_list_max;    /* Maximum number fitting in list */
 528 extern int     recipients_max;         /* Max permitted */
 529 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 530 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 531 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 532 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 533 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 534 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 535 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 536 #ifdef WITH_CONTENT_SCAN
 537 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 538 #endif
 539 extern int     remote_delivery_count;  /* Number of remote addresses */
 540 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 541 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 542 extern retry_config *retries;          /* Chain of retry config information */
 543 extern int     retry_data_expire;      /* When to expire retry data */
 544 extern int     retry_interval_max;     /* Absolute maximum */
 545 extern int     retry_maximum_timeout;  /* The maximum timeout */
 546 extern uschar *return_path;            /* Return path for a message */
 547 extern BOOL    return_path_remove;     /* Remove return-path headers */
 548 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 549 extern uschar *rfc1413_hosts;          /* RFC hosts */
 550 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 551 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 552 extern uid_t   root_uid;               /* The uid for root */
 553 extern router_info routers_available[];/* Vector of available routers */
 554 extern router_instance *routers;       /* Chain of instantiated routers */
 555 extern router_instance router_defaults;/* Default values */
 556 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 557 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 558 extern uschar *running_status;         /* Flag string for testing */
 559 extern int     runrc;                  /* rc from ${run} */
 560
 561 extern uschar *search_error_message;   /* Details of lookup problem */
 562 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 563 extern uschar *self_hostname;          /* Self host after routing->directors */
 564 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 565 extern uschar *sender_address_data;    /* address_data from sender verify */
 566 extern BOOL    sender_address_forced;  /* Set by -f */
 567 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 568 extern uschar *sender_data;            /* lookup result for senders */
 569 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 570 extern uschar *sender_fullhost;        /* Sender host name + address */
 571 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 572 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 573 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 574 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 575 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 576 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 577 extern BOOL    sender_local;           /* TRUE for local senders */
 578 extern uschar *sender_rcvhost;         /* Host data for Received: */
 579 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 580 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 581 extern uschar *sender_verify_failure;  /* What went wrong */
 582 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 583 extern address_item *sender_verified_failed; /* The one that caused denial */
 584 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 585 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 586 extern int     smtp_accept_count;      /* Count of connections */
 587 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 588 extern int     smtp_accept_max;        /* Max SMTP connections */
 589 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 590 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 591 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 592 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 593 extern int     smtp_accept_queue;      /* Queue after so many connections */
 594 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 595 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 596 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 597 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 598 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 599 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 600 extern uschar *smtp_command_argument;  /* When running certain ACLs */
 601 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 602 extern double  smtp_delay_mail;        /* Current MAIL delay */
 603 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 604 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 605 extern uschar *smtp_etrn_command;      /* Command to run */
 606 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 607 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 608 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 609 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 610 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 611 extern int     smtp_max_unknown_commands; /* As it says */
 612 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 613 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 614 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 615 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 616 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 617 extern int     smtp_receive_timeout;   /* Applies to each received line */
 618 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 619 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 620 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 621 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 622 extern int     smtp_rlm_limit;         /* Max delay */
 623 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 624 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 625 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 626 extern int     smtp_rlr_limit;         /* Max delay */
 627 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 628 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 629 extern BOOL    smtp_use_size;          /* Global for passed connections */
 630
 631 #ifdef WITH_CONTENT_SCAN
 632 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 633 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 634 extern uschar *spam_report;            /* the spamd report (multiline) */
 635 extern uschar *spam_score;             /* the spam score (float) */
 636 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 637 #endif
 638 #ifdef EXPERIMENTAL_SPF
 639 extern uschar *spf_header_comment;     /* spf header comment */
 640 extern uschar *spf_received;           /* SPF-Received: header */
 641 extern uschar *spf_result;             /* spf result in string form */
 642 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 643 #endif
 644 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 645 extern uschar *spool_directory;        /* Name of spool directory */
 646 #ifdef EXPERIMENTAL_SRS
 647 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 648 extern uschar *srs_db_address;         /* SRS db address */
 649 extern uschar *srs_db_key;             /* SRS db key */
 650 extern uschar *srs_orig_sender;        /* SRS original sender */
 651 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 652 extern uschar *srs_recipient;          /* SRS recipient */
 653 extern uschar *srs_status;             /* SRS staus */
 654 #endif
 655 extern int     string_datestamp_offset;/* After insertion by string_format */
 656 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 657 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 658 extern uschar *submission_domain;      /* Domain for submission mode */
 659 extern BOOL    submission_mode;        /* Can be forced from ACL */
 660 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 661 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 662 extern int     syslog_facility;        /* As defined by Syslog.h */
 663 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 664 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 665 extern uschar *system_filter;          /* Name of system filter file */
 666
 667 extern uschar *system_filter_directory_transport;  /* Transports for the */
 668 extern uschar *system_filter_file_transport;       /* system filter */
 669 extern uschar *system_filter_pipe_transport;
 670 extern uschar *system_filter_reply_transport;
 671
 672 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 673 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 674 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 675 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 676 extern BOOL    system_filtering;       /* TRUE when running system filter */
 677
 678 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 679 extern int     thismessage_size_limit; /* Limit for this message */
 680 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 681 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 682 extern int     transport_count;        /* Count of bytes transported */
 683 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 684 extern int     transport_filter_timeout; /* Timeout for same */
 685
 686 extern transport_info transports_available[]; /* Vector of available transports */
 687 extern transport_instance *transports; /* Chain of instantiated transports */
 688 extern transport_instance transport_defaults; /* Default values */
 689
 690 extern int     transport_write_timeout;/* Set to time out individual writes */
 691
 692 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 693 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 694 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 695 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 696
 697 extern BOOL    trusted_caller;         /* Caller is trusted */
 698 extern gid_t  *trusted_groups;         /* List of trusted groups */
 699 extern uid_t  *trusted_users;          /* List of trusted users */
 700 extern uschar *timezone_string;        /* Required timezone setting */
 701
 702 extern uschar *unknown_login;          /* To use when login id unknown */
 703 extern uschar *unknown_username;       /* Ditto */
 704 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 705 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 706 extern uschar *uucp_from_sender;       /* For building the sender */
 707
 708 extern uschar *warn_message_file;      /* Template for warning messages */
 709 extern uschar *warnmsg_delay;          /* String form of delay time */
 710 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 711 extern BOOL    write_rejectlog;        /* Control of reject logging */
 712
 713 extern uschar *version_copyright;      /* Copyright notice */
 714 extern uschar *version_date;           /* Date of compilation */
 715 extern uschar *version_cnumber;        /* Compile number */
 716 extern uschar *version_string;         /* Version string */
 717
 718 extern int     warning_count;          /* Delay warnings sent for this msg */
 719
 720 /* End of globals.h */