src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.27 2005/09/07 10:15:33 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 LOOKUP_SQLITE
  55 extern int     sqlite_lock_timeout;    /* Internal lock waiting timeout */
  56 #endif
  57
  58 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  59 extern BOOL    move_frozen_messages;   /* Get them out of the normal directory */
  60 #endif
  61
  62 /* These variables are outside the #ifdef because it keeps the code less
  63 cluttered in several places (e.g. during logging) if we can always refer to
  64 them. Also, the tls_ variables are now always visible. */
  65
  66 extern int     tls_active;             /* fd/socket when in a TLS session */
  67 extern BOOL    tls_certificate_verified; /* Client certificate verified */
  68 extern uschar *tls_cipher;             /* Cipher used */
  69 extern BOOL    tls_on_connect;         /* For older MTAs that don't STARTTLS */
  70 extern uschar *tls_on_connect_ports;   /* Ports always tls-on-connect */
  71 extern uschar *tls_peerdn;             /* DN from peer */
  72
  73 #ifdef SUPPORT_TLS
  74 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
  75 extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */
  76 extern uschar *tls_certificate;        /* Certificate file */
  77 extern uschar *tls_crl;                /* CRL File */
  78 extern uschar *tls_dhparam;            /* DH param file */
  79 extern BOOL    tls_offered;            /* Server offered TLS */
  80 extern uschar *tls_privatekey;         /* Private key file */
  81 extern BOOL    tls_remember_esmtp;     /* For YAEB */
  82 extern uschar *tls_require_ciphers;    /* So some can be avoided */
  83 extern uschar *tls_try_verify_hosts;   /* Optional client verification */
  84 extern uschar *tls_verify_certificates;/* Path for certificates to check */
  85 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
  86 #endif
  87
  88
  89 /* Input-reading functions for messages, so we can use special ones for
  90 incoming TCP/IP. */
  91
  92 extern int (*receive_getc)(void);
  93 extern int (*receive_ungetc)(int);
  94 extern int (*receive_feof)(void);
  95 extern int (*receive_ferror)(void);
  96
  97
  98 /* For clearing, saving, restoring address expansion variables. We have to have
  99 the size of this vector set explicitly, because it is referenced from more than
 100 one module. */
 101
 102 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
 103
 104 /* General global variables */
 105
 106 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
 107 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 108 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 109 #ifdef WITH_CONTENT_SCAN
 110 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */
 111 #endif
 112 extern uschar *acl_smtp_auth;          /* ACL run for AUTH */
 113 extern uschar *acl_smtp_connect;       /* ACL run on SMTP connection */
 114 extern uschar *acl_smtp_data;          /* ACL run after DATA received */
 115 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 116 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 117 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 118 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 119 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 120 #ifdef WITH_CONTENT_SCAN
 121 extern uschar *acl_smtp_mime;          /* ACL run after DATA, before acl_smtp_data, for each MIME part */
 122 #endif
 123 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 124 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 125 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 126 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 127 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 128 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 129 extern uschar *acl_var[ACL_C_MAX+ACL_M_MAX]; /* User variables */
 130 extern uschar *acl_verify_message;     /* User message for verify failure */
 131 extern header_line *acl_warn_headers;  /* Warning headers added by ACL */
 132 extern string_item *acl_warn_logged;   /* Logged lines */
 133 extern int     acl_wherecodes[];       /* Response codes for ACL fails */
 134 extern uschar *acl_wherenames[];       /* Names for messages */
 135 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 136 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 137 extern address_item *addr_duplicate;   /* Duplicate address list */
 138 extern address_item address_defaults;  /* Default data for address item */
 139 extern uschar *address_file;           /* Name of file when delivering to one */
 140 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 141 extern BOOL    address_test_mode;      /* True for -bt */
 142 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 143 extern int     addresslist_count;      /* Number defined */
 144 extern gid_t  *admin_groups;           /* List of admin groups */
 145 extern BOOL    admin_user;             /* True if caller can do admin */
 146 extern BOOL    allow_domain_literals;  /* As it says */
 147 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 148 extern BOOL    allow_unqualified_recipient; /* As it says */
 149 extern BOOL    allow_unqualified_sender; /* Ditto */
 150 extern BOOL    allow_utf8_domains;     /* For experimenting */
 151 extern uschar *authenticated_id;       /* ID that was authenticated */
 152 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 153 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 154 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 155 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 156 extern auth_instance *auths;           /* Chain of instantiated auths */
 157 extern auth_instance auth_defaults;    /* Default values */
 158 extern uschar *auth_defer_msg;         /* Error message for log */
 159 extern uschar *auth_defer_user_msg;    /* Error message for user */
 160 extern int     auto_thaw;              /* Auto-thaw interval */
 161 #ifdef WITH_CONTENT_SCAN
 162 extern uschar *av_scanner;             /* AntiVirus scanner to use for the malware condition */
 163 #endif
 164
 165 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 166 extern uschar *base62_chars;           /* Table of base-62 characters */
 167 extern uschar *bi_command;             /* Command for -bi option */
 168 extern uschar *big_buffer;             /* Used for various temp things */
 169 extern int     big_buffer_size;        /* Current size (can expand) */
 170 #ifdef EXPERIMENTAL_BRIGHTMAIL
 171 extern uschar *bmi_alt_location;       /* expansion variable that contains the alternate location for the rcpt (available during routing) */
 172 extern uschar *bmi_base64_tracker_verdict; /* expansion variable with base-64 encoded OLD verdict string (available during routing) */
 173 extern uschar *bmi_base64_verdict;     /* expansion variable with base-64 encoded verdict string (available during routing) */
 174 extern uschar *bmi_config_file;        /* Brightmail config file */
 175 extern int     bmi_deliver;            /* Flag that determines if the message should be delivered to the rcpt (available during routing) */
 176 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 177 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 178 #endif
 179 extern int     body_linecount;         /* Line count in body */
 180 extern int     body_zerocount;         /* Binary zero count in body */
 181 extern uschar *bounce_message_file;    /* Template file */
 182 extern uschar *bounce_message_text;    /* One-liner */
 183 extern uschar *bounce_recipient;       /* When writing an errmsg */
 184 extern BOOL    bounce_return_body;     /* Include body in returned message */
 185 extern BOOL    bounce_return_message;  /* Include message in bounce */
 186 extern int     bounce_return_size_limit; /* Max amount to return */
 187 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 188 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 189
 190 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 191 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 192 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 193 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 194 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 195 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 196 extern int     check_log_inodes;       /* Minimum for message acceptance */
 197 extern int     check_log_space;        /* Minimum for message acceptance */
 198 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 199 extern int     check_spool_space;      /* Minimum for message acceptance */
 200 extern int     clmacro_count;          /* Number of command line macros */
 201 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 202 extern int     connection_max_messages;/* Max down one SMTP connection */
 203 extern BOOL    config_changed;         /* True if -C used */
 204 extern FILE   *config_file;            /* Configuration file */
 205 extern uschar *config_filename;        /* Configuration file name */
 206 #ifdef CONFIGURE_GROUP
 207 extern gid_t   config_gid;             /* Additional group owner */
 208 #endif
 209 extern int     config_lineno;          /* Line number */
 210 extern uschar *config_main_filelist;   /* List of possible config files */
 211 extern uschar *config_main_filename;   /* File name actually used */
 212 #ifdef CONFIGURE_OWNER
 213 extern uid_t   config_uid;             /* Additional owner */
 214 #endif
 215 extern uschar *continue_hostname;      /* Host for continued delivery */
 216 extern uschar *continue_host_address;  /* IP address for ditto */
 217 extern BOOL    continue_more;          /* Flag more addresses waiting */
 218 extern int     continue_sequence;      /* Sequence num for continued delivery */
 219 extern uschar *continue_transport;     /* Transport for continued delivery */
 220
 221 extern uschar *csa_status;             /* Client SMTP Authorization result */
 222
 223 extern BOOL    daemon_listen;          /* True if listening required */
 224 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 225 extern int     daemon_startup_retries; /* Number of times to retry */
 226 extern int     daemon_startup_sleep;   /* Sleep between retries */
 227 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 228 extern int     debug_fd;               /* The fd for debug_file */
 229 extern FILE   *debug_file;             /* Where to write debugging info */
 230 extern bit_table debug_options[];      /* Table of debug options */
 231 extern int     debug_options_count;    /* Size of table */
 232 extern int     delay_warning[];        /* Times between warnings */
 233 extern uschar *delay_warning_condition; /* Condition string for warnings */
 234 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 235
 236 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 237 extern int     deliver_datafile;       /* FD for data part of message */
 238 extern uschar *deliver_domain;         /* The local domain for delivery */
 239 extern uschar *deliver_domain_data;    /* From domain lookup */
 240 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 241 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 242 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 243 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 244 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 245 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 246 extern int     deliver_frozen_at;      /* Time of freezing */
 247 extern uschar *deliver_home;           /* Home directory for pipes */
 248 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 249                                        /* Remote host for filter */
 250 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 251 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 252 extern ino_t   deliver_inode;          /* Inode for appendfile */
 253 extern uschar *deliver_localpart;      /* The local part for delivery */
 254 extern uschar *deliver_localpart_data; /* From local part lookup */
 255 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 256 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 257 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 258 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 259 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 260 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 261 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 262 extern int     deliver_queue_load_max; /* Different value for queue running */
 263 extern address_item *deliver_recipients; /* Current set of addresses */
 264 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 265 extern BOOL    deliver_selectstring_regex; /* String is regex */
 266 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 267 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 268 #ifdef WITH_OLD_DEMIME
 269 extern int     demime_errorlevel;      /* Severity of MIME error */
 270 extern int     demime_ok;              /* Nonzero if message has been demimed */
 271 extern uschar *demime_reason;          /* Reason for broken MIME container */
 272 #endif
 273 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 274
 275 #ifdef EXPERIMENTAL_DOMAINKEYS
 276 extern uschar *dk_signing_domain;      /* Domain used for signing a message. */
 277 extern uschar *dk_signing_selector;    /* Selector used for signing a message. */
 278 extern int     dk_do_verify;           /* DK verification switch. Set with ACL control statement. */
 279 #endif
 280
 281 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 282 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 283 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 284 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 285 extern int     dns_retrans;            /* Retransmission time setting */
 286 extern int     dns_retry;              /* Number of retries */
 287 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 288 extern uschar *dnslist_text;           /* DNS (black) list text message */
 289 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 290 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 291 extern int     domainlist_count;       /* Number defined */
 292 extern BOOL    dont_deliver;           /* TRUE for -N option */
 293 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 294
 295 /* This option is now a no-opt, retained for compatibility */
 296 extern BOOL    drop_cr;                /* For broken local MUAs */
 297
 298 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 299 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 300 extern int     errno_quota;            /* Quota errno in this OS */
 301 extern int     error_handling;         /* Error handling style */
 302 extern uschar *errors_copy;            /* For taking copies of errors */
 303 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 304 extern int     errors_sender_rc;       /* Return after message to sender*/
 305 extern gid_t   exim_gid;               /* To be used with exim_uid */
 306 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 307 extern uschar *exim_path;              /* Path to exec exim */
 308 extern uid_t   exim_uid;               /* Non-root uid for exim */
 309 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 310 extern int     expand_forbid;          /* RDO flags for forbidding things */
 311 extern int     expand_nlength[];       /* Lengths of numbered strings */
 312 extern int     expand_nmax;            /* Max numerical value */
 313 extern uschar *expand_nstring[];       /* Numbered strings */
 314 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 315 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 316 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 317
 318 extern int     fake_response;          /* Fake FAIL or DEFER response to data */
 319 extern uschar *fake_response_text;     /* User defined message for the above. Default is in globals.c. */
 320 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 321 extern BOOL    filter_running;         /* TRUE while running a filter */
 322 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 323 extern int     filter_test;            /* Filter test type */
 324 extern uschar *filter_test_sfile;      /* System filter test file */
 325 extern uschar *filter_test_ufile;      /* User filter test file */
 326 extern uschar *filter_thisaddress;     /* For address looping */
 327 extern int     finduser_retries;       /* Retry count for getpwnam() */
 328 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 329 #ifdef WITH_OLD_DEMIME
 330 extern uschar *found_extension;        /* demime acl condition: file extension found */
 331 #endif
 332 extern uschar *freeze_tell;            /* Message on (some) freezings */
 333 extern uschar *fudged_queue_times;     /* For use in test harness */
 334
 335 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 336 extern uschar *gecos_pattern;          /* Pattern to match */
 337 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 338
 339 extern int     header_insert_maxlen;   /* Max for inserting headers */
 340 extern int     header_maxsize;         /* Max total length for header */
 341 extern int     header_line_maxsize;    /* Max for an individual line */
 342 extern header_name header_names[];     /* Table of header names */
 343 extern int     header_names_size;      /* Number of entries */
 344 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 345 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 346 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 347 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 348 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 349 extern BOOL    helo_verified;          /* True if HELO verified */
 350 extern BOOL    helo_verify_failed;     /* True if attempt failed */
 351 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 352 extern uschar *hex_digits;             /* Used in several places */
 353 extern uschar *hold_domains;           /* Hold up deliveries to these */
 354 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 355 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 356 extern uschar *host_data;              /* Obtained from lookup in ACL */
 357 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 358 extern BOOL    host_lookup_deferred;   /* TRUE if lookup deferred */
 359 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 360 extern uschar *host_lookup_order;      /* Order of host lookup types */
 361 extern uschar *host_lookup_msg;        /* Text for why it failed */
 362 extern int     host_number;            /* For sharing spools */
 363 extern uschar *host_number_string;     /* For expanding */
 364 extern uschar *host_reject_connection; /* Reject these hosts */
 365 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 366 extern int     hostlist_count;         /* Number defined */
 367 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 368 extern uschar *hosts_treat_as_local;   /* For routing */
 369
 370 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 371 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 372 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 373 extern BOOL    is_inetd;               /* True for inetd calls */
 374
 375 extern int     journal_fd;             /* Fd for journal file */
 376
 377 extern int     keep_malformed;         /* Time to keep malformed messages */
 378
 379 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 380 extern int     load_average;           /* Most recently read load average */
 381 extern BOOL    local_error_message;    /* True if handling one of these */
 382 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 383 extern uschar *local_from_prefix;      /* Permitted prefixes */
 384 extern uschar *local_from_suffix;      /* Permitted suffixes */
 385 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 386 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 387 extern optionlist local_scan_options[];/* Option list for local_scan() */
 388 extern int     local_scan_options_count; /* Size of the list */
 389 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 390 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 391 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 392 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 393 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 394 extern int     localpartlist_count;    /* Number defined */
 395 extern uschar *log_buffer;             /* For constructing log entries */
 396 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 397 extern uschar *log_file_path;          /* If unset, use default */
 398 extern bit_table log_options[];        /* Table of options */
 399 extern int     log_options_count;      /* Size of table */
 400 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 401 extern uschar *log_selector_string;    /* As supplied in the config */
 402 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 403 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 404 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 405 extern uschar *login_sender_address;   /* The actual sender address */
 406 extern lookup_info lookup_list[];      /* Vector of available lookups */
 407 extern int     lookup_list_count;      /* Number of entries in the list */
 408 extern int     lookup_open_max;        /* Max lookup files to cache */
 409 extern uschar *lookup_value;           /* Value looked up from file */
 410
 411 extern macro_item *macros;             /* Configuration macros */
 412 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 413 #ifdef WITH_CONTENT_SCAN
 414 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 415 #endif
 416 extern int     max_username_length;    /* For systems with broken getpwnam() */
 417 extern int     message_age;            /* In seconds */
 418 extern uschar *message_body;           /* Start of message body for filter */
 419 extern uschar *message_body_end;       /* End of message body for filter */
 420 extern int     message_body_size;      /* Sic */
 421 extern int     message_body_visible;   /* Amount visible in message_body */
 422 extern int     message_ended;          /* State of message reading and how ended */
 423 extern uschar *message_headers;        /* When built */
 424 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 425 extern uschar *message_id_external;    /* External form of following */
 426 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 427 extern uschar *message_id_text;        /* Expanded to form message_id */
 428 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 429 extern int     message_linecount;      /* As it says */
 430 extern BOOL    message_logs;           /* TRUE to write message logs */
 431 extern int     message_size;           /* Size of message */
 432 extern uschar *message_size_limit;     /* As it says */
 433 extern uschar  message_subdir[];       /* Subdirectory for messages */
 434 extern uschar *message_reference;      /* Reference for error messages */
 435
 436 /* MIME ACL expandables */
 437 #ifdef WITH_CONTENT_SCAN
 438 extern int     mime_anomaly_level;
 439 extern uschar *mime_anomaly_text;
 440 extern uschar *mime_boundary;
 441 extern uschar *mime_charset;
 442 extern uschar *mime_content_description;
 443 extern uschar *mime_content_disposition;
 444 extern uschar *mime_content_id;
 445 extern unsigned int mime_content_size;
 446 extern uschar *mime_content_transfer_encoding;
 447 extern uschar *mime_content_type;
 448 extern uschar *mime_decoded_filename;
 449 extern uschar *mime_filename;
 450 extern int     mime_is_multipart;
 451 extern int     mime_is_coverletter;
 452 extern int     mime_is_rfc822;
 453 extern int     mime_part_count;
 454 #endif
 455
 456 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 457
 458 extern uid_t  *never_users;            /* List of uids never to be used */
 459 #ifdef WITH_CONTENT_SCAN
 460 extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory */
 461 #endif
 462 extern BOOL    no_multiline_responses; /* For broken clients */
 463
 464 extern optionlist optionlist_auths[];      /* These option lists are made */
 465 extern int     optionlist_auths_size;      /* global so that readconf can */
 466 extern optionlist optionlist_routers[];    /* see them for printing out   */
 467 extern int     optionlist_routers_size;    /* the options.                */
 468 extern optionlist optionlist_transports[];
 469 extern int     optionlist_transports_size;
 470
 471 extern uid_t   original_euid;          /* Original effective uid */
 472 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 473 extern uschar *originator_login;       /* Login of same */
 474 extern uschar *originator_name;        /* Full name of same */
 475 extern uid_t   originator_uid;         /* Uid of ditto */
 476 extern uschar *override_local_interfaces; /* Value of -oX argument */
 477 extern uschar *override_pid_file_path; /* Value of -oP argument */
 478
 479 extern BOOL    parse_allow_group;      /* Allow group syntax */
 480 extern BOOL    parse_found_group;      /* In the middle of a group */
 481 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 482 extern uschar *pid_file_path;          /* For writing daemon pids */
 483 extern uschar *pipelining_advertise_hosts; /* As it says */
 484 extern BOOL    preserve_message_logs;  /* Save msglog files */
 485 extern uschar *primary_hostname;       /* Primary name of this computer */
 486 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 487 extern uschar  process_info[];         /* For SIGUSR1 output */
 488 extern uschar *process_log_path;       /* Alternate path */
 489 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 490 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 491 extern uschar *prvscheck_keynum;       /* Set during prvscheck expansion item */
 492 extern uschar *prvscheck_result;       /* Set during prvscheck expansion item */
 493
 494 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 495 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 496 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 497 extern uschar *queue_domains;          /* Queue these domains */
 498 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 499 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 500 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 501 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 502 extern BOOL    queue_running;          /* TRUE for queue running process and */
 503                                        /*   immediate children */
 504 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 505 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 506 extern int     queue_interval;         /* Queue running interval */
 507 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 508 extern int     queue_only_load;        /* Max load before auto-queue */
 509 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 510 extern BOOL    queue_only_override;    /* Allow override from command line */
 511 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 512 extern BOOL    queue_run_in_order;     /* As opposed to random */
 513 extern int     queue_run_max;          /* Max queue runners */
 514 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 515 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 516
 517 extern unsigned int random_seed;       /* Seed for random numbers */
 518 extern tree_node *ratelimiters_cmd;    /* Results of command ratelimit checks */
 519 extern tree_node *ratelimiters_conn;   /* Results of connection ratelimit checks */
 520 extern tree_node *ratelimiters_mail;   /* Results of per-mail ratelimit checks */
 521 extern uschar *raw_active_hostname;    /* Pre-expansion */
 522 extern uschar *raw_sender;             /* Before rewriting */
 523 extern uschar **raw_recipients;        /* Before rewriting */
 524 extern int     raw_recipients_count;
 525 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 526 extern int     rcpt_fail_count;        /* Those that got 5xx */
 527 extern int     rcpt_defer_count;       /* Those that got 4xx */
 528 extern gid_t   real_gid;               /* Real gid */
 529 extern uid_t   real_uid;               /* Real user running program */
 530 extern BOOL    really_exim;            /* FALSE in utilities */
 531 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 532 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 533 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 534 extern int     receive_timeout;        /* For non-SMTP acceptance */
 535 extern int     received_count;         /* Count of Received: headers */
 536 extern uschar *received_for;           /* For "for" field */
 537 extern uschar *received_header_text;   /* Definition of Received: header */
 538 extern int     received_headers_max;   /* Max count of Received: headers */
 539 extern int     received_time;          /* Time the message was received */
 540 extern uschar *recipient_data;         /* lookup data for recipients */
 541 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 542 extern uschar *recipient_verify_failure; /* What went wrong */
 543 extern BOOL    recipients_discarded;   /* By an ACL */
 544 extern int     recipients_list_max;    /* Maximum number fitting in list */
 545 extern int     recipients_max;         /* Max permitted */
 546 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 547 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 548 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 549 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 550 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 551 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 552 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 553 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 554 #ifdef WITH_CONTENT_SCAN
 555 extern uschar *regex_match_string;     /* regex that matched a line (regex ACL condition) */
 556 #endif
 557 extern int     remote_delivery_count;  /* Number of remote addresses */
 558 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 559 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 560 extern retry_config *retries;          /* Chain of retry config information */
 561 extern int     retry_data_expire;      /* When to expire retry data */
 562 extern int     retry_interval_max;     /* Absolute maximum */
 563 extern int     retry_maximum_timeout;  /* The maximum timeout */
 564 extern uschar *return_path;            /* Return path for a message */
 565 extern BOOL    return_path_remove;     /* Remove return-path headers */
 566 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 567 extern uschar *rfc1413_hosts;          /* RFC hosts */
 568 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 569 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 570 extern uid_t   root_uid;               /* The uid for root */
 571 extern router_info routers_available[];/* Vector of available routers */
 572 extern router_instance *routers;       /* Chain of instantiated routers */
 573 extern router_instance router_defaults;/* Default values */
 574 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 575 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 576 extern uschar *running_status;         /* Flag string for testing */
 577 extern int     runrc;                  /* rc from ${run} */
 578
 579 extern uschar *search_error_message;   /* Details of lookup problem */
 580 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 581 extern uschar *self_hostname;          /* Self host after routing->directors */
 582 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 583 extern uschar *sender_address_data;    /* address_data from sender verify */
 584 extern BOOL    sender_address_forced;  /* Set by -f */
 585 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 586 extern uschar *sender_data;            /* lookup result for senders */
 587 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 588 extern uschar *sender_fullhost;        /* Sender host name + address */
 589 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 590 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 591 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 592 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 593 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 594 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 595 extern BOOL    sender_local;           /* TRUE for local senders */
 596 extern BOOL    sender_name_forced;     /* Set by -F */
 597 extern uschar *sender_rate;            /* Sender rate computed by ACL */
 598 extern uschar *sender_rate_limit;      /* Configured rate limit */
 599 extern uschar *sender_rate_period;     /* Configured smoothing period */
 600 extern uschar *sender_rcvhost;         /* Host data for Received: */
 601 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 602 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 603 extern uschar *sender_verify_failure;  /* What went wrong */
 604 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 605 extern address_item *sender_verified_failed; /* The one that caused denial */
 606 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 607 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 608 extern int     smtp_accept_count;      /* Count of connections */
 609 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 610 extern int     smtp_accept_max;        /* Max SMTP connections */
 611 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 612 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 613 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 614 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 615 extern int     smtp_accept_queue;      /* Queue after so many connections */
 616 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 617 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 618 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 619 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 620 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 621 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 622 extern uschar *smtp_command_argument;  /* For all SMTP commands */
 623 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 624 extern double  smtp_delay_mail;        /* Current MAIL delay */
 625 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 626 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 627 extern uschar *smtp_etrn_command;      /* Command to run */
 628 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 629 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 630 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 631 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 632 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 633 extern int     smtp_max_unknown_commands; /* As it says */
 634 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 635 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 636 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 637 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 638 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 639 extern int     smtp_receive_timeout;   /* Applies to each received line */
 640 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 641 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 642 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 643 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 644 extern int     smtp_rlm_limit;         /* Max delay */
 645 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 646 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 647 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 648 extern int     smtp_rlr_limit;         /* Max delay */
 649 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 650 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 651 extern BOOL    smtp_use_size;          /* Global for passed connections */
 652
 653 #ifdef WITH_CONTENT_SCAN
 654 extern uschar *spamd_address;          /* address for the spamassassin daemon */
 655 extern uschar *spam_bar;               /* the spam "bar" (textual representation of spam_score) */
 656 extern uschar *spam_report;            /* the spamd report (multiline) */
 657 extern uschar *spam_score;             /* the spam score (float) */
 658 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 659 #endif
 660 #ifdef EXPERIMENTAL_SPF
 661 extern uschar *spf_header_comment;     /* spf header comment */
 662 extern uschar *spf_received;           /* SPF-Received: header */
 663 extern uschar *spf_result;             /* spf result in string form */
 664 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 665 #endif
 666 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 667 extern uschar *spool_directory;        /* Name of spool directory */
 668 #ifdef EXPERIMENTAL_SRS
 669 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 670 extern uschar *srs_db_address;         /* SRS db address */
 671 extern uschar *srs_db_key;             /* SRS db key */
 672 extern int     srs_hashlength;         /* SRS hash length */
 673 extern int     srs_hashmin;            /* SRS minimum hash length */
 674 extern int     srs_maxage;             /* SRS max age */
 675 extern uschar *srs_orig_sender;        /* SRS original sender */
 676 extern uschar *srs_orig_recipient;     /* SRS original recipient */
 677 extern uschar *srs_recipient;          /* SRS recipient */
 678 extern uschar *srs_secrets;            /* SRS secrets list */
 679 extern uschar *srs_status;             /* SRS staus */
 680 extern BOOL    srs_usehash;            /* SRS use hash flag */
 681 extern BOOL    srs_usetimestamp;       /* SRS use timestamp flag */
 682 #endif
 683 extern int     string_datestamp_offset;/* After insertion by string_format */
 684 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 685 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 686 extern uschar *submission_domain;      /* Domain for submission mode */
 687 extern BOOL    submission_mode;        /* Can be forced from ACL */
 688 extern uschar *submission_name;        /* User name set from ACL */
 689 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 690 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 691 extern int     syslog_facility;        /* As defined by Syslog.h */
 692 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 693 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 694 extern uschar *system_filter;          /* Name of system filter file */
 695
 696 extern uschar *system_filter_directory_transport;  /* Transports for the */
 697 extern uschar *system_filter_file_transport;       /* system filter */
 698 extern uschar *system_filter_pipe_transport;
 699 extern uschar *system_filter_reply_transport;
 700
 701 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 702 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 703 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 704 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 705 extern BOOL    system_filtering;       /* TRUE when running system filter */
 706
 707 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 708 extern int     thismessage_size_limit; /* Limit for this message */
 709 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 710 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 711 extern int     transport_count;        /* Count of bytes transported */
 712 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 713 extern int     transport_filter_timeout; /* Timeout for same */
 714 extern BOOL    transport_filter_timed_out; /* True if it did */
 715
 716 extern transport_info transports_available[]; /* Vector of available transports */
 717 extern transport_instance *transports; /* Chain of instantiated transports */
 718 extern transport_instance transport_defaults; /* Default values */
 719
 720 extern int     transport_write_timeout;/* Set to time out individual writes */
 721
 722 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 723 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 724 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 725 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 726
 727 extern BOOL    trusted_caller;         /* Caller is trusted */
 728 extern gid_t  *trusted_groups;         /* List of trusted groups */
 729 extern uid_t  *trusted_users;          /* List of trusted users */
 730 extern uschar *timezone_string;        /* Required timezone setting */
 731
 732 extern uschar *unknown_login;          /* To use when login id unknown */
 733 extern uschar *unknown_username;       /* Ditto */
 734 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 735 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 736 extern uschar *uucp_from_sender;       /* For building the sender */
 737
 738 extern uschar *warn_message_file;      /* Template for warning messages */
 739 extern uschar *warnmsg_delay;          /* String form of delay time */
 740 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 741 extern BOOL    write_rejectlog;        /* Control of reject logging */
 742
 743 extern uschar *version_copyright;      /* Copyright notice */
 744 extern uschar *version_date;           /* Date of compilation */
 745 extern uschar *version_cnumber;        /* Compile number */
 746 extern uschar *version_string;         /* Version string */
 747
 748 extern int     warning_count;          /* Delay warnings sent for this msg */
 749
 750 /* End of globals.h */