src/src/globals.h

   1 /* $Cambridge: exim/src/src/globals.h,v 1.5 2004/11/05 16:53:28 ph10 Exp $ */
   2
   3 /*************************************************
   4 *     Exim - an Internet mail transport agent    *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge 1995 - 2004 */
   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 LOOKUP_IBASE
  30 extern uschar *ibase_servers;
  31 #endif
  32
  33 #ifdef LOOKUP_LDAP
  34 extern uschar *eldap_default_servers;  /* List of default servers */
  35 extern int     eldap_version;          /* LDAP version */
  36 #endif
  37
  38 #ifdef LOOKUP_MYSQL
  39 extern uschar *mysql_servers;          /* List of servers and connect info */
  40 #endif
  41
  42 #ifdef LOOKUP_ORACLE
  43 extern uschar *oracle_servers;         /* List of servers and connect info */
  44 #endif
  45
  46 #ifdef LOOKUP_PGSQL
  47 extern uschar *pgsql_servers;          /* List of servers and connect info */
  48 #endif
  49
  50 #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
  51 extern BOOL    move_frozen_messages;   /* Get them out of the normal directory */
  52 #endif
  53
  54 /* These variables are outside the #ifdef because it keeps the code less
  55 cluttered in several places (e.g. during logging) if we can always refer to
  56 them. Also, the tls_ variables are now always visible. */
  57
  58 extern int     tls_active;             /* fd/socket when in a TLS session */
  59 extern BOOL    tls_certificate_verified; /* Client certificate verified */
  60 extern uschar *tls_cipher;             /* Cipher used */
  61 extern BOOL    tls_on_connect;         /* For older MTAs that don't STARTTLS */
  62 extern uschar *tls_on_connect_ports;   /* Ports always tls-on-connect */
  63 extern uschar *tls_peerdn;             /* DN from peer */
  64
  65 #ifdef SUPPORT_TLS
  66 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
  67 extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */
  68 extern uschar *tls_certificate;        /* Certificate file */
  69 extern uschar *tls_crl;                /* CRL File */
  70 extern uschar *tls_dhparam;            /* DH param file */
  71 extern BOOL    tls_offered;            /* Server offered TLS */
  72 extern uschar *tls_privatekey;         /* Private key file */
  73 extern BOOL    tls_remember_esmtp;     /* For YAEB */
  74 extern uschar *tls_require_ciphers;    /* So some can be avoided */
  75 extern uschar *tls_try_verify_hosts;   /* Optional client verification */
  76 extern uschar *tls_verify_certificates;/* Path for certificates to check */
  77 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
  78 #endif
  79
  80
  81 /* Input-reading functions for messages, so we can use special ones for
  82 incoming TCP/IP. */
  83
  84 extern int (*receive_getc)(void);
  85 extern int (*receive_ungetc)(int);
  86 extern int (*receive_feof)(void);
  87 extern int (*receive_ferror)(void);
  88
  89
  90 /* For clearing, saving, restoring address expansion variables. We have to have
  91 the size of this vector set explicitly, because it is referenced from more than
  92 one module. */
  93
  94 extern uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
  95
  96 /* General global variables */
  97
  98 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
  99 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 100 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 101 extern uschar *acl_smtp_auth;          /* ACL run for AUTH */
 102 extern uschar *acl_smtp_connect;       /* ACL run on SMTP connection */
 103 extern uschar *acl_smtp_data;          /* ACL run after DATA received */
 104 extern uschar *acl_smtp_etrn;          /* ACL run for ETRN */
 105 extern uschar *acl_smtp_expn;          /* ACL run for EXPN */
 106 extern uschar *acl_smtp_helo;          /* ACL run for HELO/EHLO */
 107 extern uschar *acl_smtp_mail;          /* ACL run for MAIL */
 108 extern uschar *acl_smtp_mailauth;      /* ACL run for MAIL AUTH */
 109 extern uschar *acl_smtp_predata;       /* ACL run for DATA command */
 110 extern uschar *acl_smtp_quit;          /* ACL run for QUIT */
 111 extern uschar *acl_smtp_rcpt;          /* ACL run for RCPT */
 112 extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 113 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 114 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 115 extern uschar *acl_var[ACL_C_MAX+ACL_M_MAX]; /* User variables */
 116 extern uschar *acl_verify_message;     /* User message for verify failure */
 117 extern header_line *acl_warn_headers;  /* Warning headers added by ACL */
 118 extern string_item *acl_warn_logged;   /* Logged lines */
 119 extern int     acl_wherecodes[];       /* Response codes for ACL fails */
 120 extern uschar *acl_wherenames[];       /* Names for messages */
 121 extern BOOL    active_local_from_check;/* For adding Sender: (switchable) */
 122 extern BOOL    active_local_sender_retain; /* For keeping Sender: (switchable) */
 123 extern address_item *addr_duplicate;   /* Duplicate address list */
 124 extern address_item address_defaults;  /* Default data for address item */
 125 extern uschar *address_file;           /* Name of file when delivering to one */
 126 extern uschar *address_pipe;           /* Pipe command when delivering to one */
 127 extern BOOL    address_test_mode;      /* True for -bt */
 128 extern tree_node *addresslist_anchor;  /* Tree of defined address lists */
 129 extern int     addresslist_count;      /* Number defined */
 130 extern gid_t  *admin_groups;           /* List of admin groups */
 131 extern BOOL    admin_user;             /* True if caller can do admin */
 132 extern BOOL    allow_domain_literals;  /* As it says */
 133 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 134 extern BOOL    allow_unqualified_recipient; /* As it says */
 135 extern BOOL    allow_unqualified_sender; /* Ditto */
 136 extern BOOL    allow_utf8_domains;     /* For experimenting */
 137 extern uschar *authenticated_id;       /* ID that was authenticated */
 138 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 139 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 140 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 141 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 142 extern auth_instance *auths;           /* Chain of instantiated auths */
 143 extern auth_instance auth_defaults;    /* Default values */
 144 extern uschar *auth_defer_msg;         /* Error message for log */
 145 extern uschar *auth_defer_user_msg;    /* Error message for user */
 146 extern int     auto_thaw;              /* Auto-thaw interval */
 147
 148 extern BOOL    background_daemon;      /* Set FALSE to keep in foreground */
 149 extern uschar *base62_chars;           /* Table of base-62 characters */
 150 extern uschar *bi_command;             /* Command for -bi option */
 151 extern uschar *big_buffer;             /* Used for various temp things */
 152 extern int     big_buffer_size;        /* Current size (can expand) */
 153 extern int     body_linecount;         /* Line count in body */
 154 extern int     body_zerocount;         /* Binary zero count in body */
 155 extern uschar *bounce_message_file;    /* Template file */
 156 extern uschar *bounce_message_text;    /* One-liner */
 157 extern uschar *bounce_recipient;       /* When writing an errmsg */
 158 extern BOOL    bounce_return_body;     /* Include body in returned message */
 159 extern BOOL    bounce_return_message;  /* Include message in bounce */
 160 extern int     bounce_return_size_limit; /* Max amount to return */
 161 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 162 extern int     bsmtp_transaction_linecount; /* Start of last transaction */
 163
 164 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 165 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 166 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 167 extern int     callout_cache_negative_expire; /* Time for negative callout cache records to expire */
 168 extern uschar *callout_random_local_part; /* Local part to be used to check if server called will accept any local part */
 169 extern uschar *check_dns_names_pattern;/* Regex for syntax check */
 170 extern int     check_log_inodes;       /* Minimum for message acceptance */
 171 extern int     check_log_space;        /* Minimum for message acceptance */
 172 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 173 extern int     check_spool_space;      /* Minimum for message acceptance */
 174 extern int     clmacro_count;          /* Number of command line macros */
 175 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 176 extern int     connection_max_messages;/* Max down one SMTP connection */
 177 extern BOOL    config_changed;         /* True if -C used */
 178 extern FILE   *config_file;            /* Configuration file */
 179 extern uschar *config_filename;        /* Configuration file name */
 180 #ifdef CONFIGURE_GROUP
 181 extern gid_t   config_gid;             /* Additional group owner */
 182 #endif
 183 extern int     config_lineno;          /* Line number */
 184 extern uschar *config_main_filelist;   /* List of possible config files */
 185 extern uschar *config_main_filename;   /* File name actually used */
 186 #ifdef CONFIGURE_OWNER
 187 extern uid_t   config_uid;             /* Additional owner */
 188 #endif
 189 extern uschar *continue_hostname;      /* Host for continued delivery */
 190 extern uschar *continue_host_address;  /* IP address for ditto */
 191 extern BOOL    continue_more;          /* Flag more addresses waiting */
 192 extern int     continue_sequence;      /* Sequence num for continued delivery */
 193 extern uschar *continue_transport;     /* Transport for continued delivery */
 194
 195 extern BOOL    daemon_listen;          /* True if listening required */
 196 extern uschar *daemon_smtp_port;       /* Can be a list of ports */
 197 extern int     debug_fd;               /* The fd for debug_file */
 198 extern FILE   *debug_file;             /* Where to write debugging info */
 199 extern bit_table debug_options[];      /* Table of debug options */
 200 extern int     debug_options_count;    /* Size of table */
 201 extern int     delay_warning[];        /* Times between warnings */
 202 extern uschar *delay_warning_condition; /* Condition string for warnings */
 203 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 204
 205 extern uschar *deliver_address_data;   /* Arbitrary data for an address */
 206 extern int     deliver_datafile;       /* FD for data part of message */
 207 extern uschar *deliver_domain;         /* The local domain for delivery */
 208 extern uschar *deliver_domain_data;    /* From domain lookup */
 209 extern uschar *deliver_domain_orig;    /* The original local domain for delivery */
 210 extern uschar *deliver_domain_parent;  /* The parent domain for delivery */
 211 extern BOOL    deliver_drop_privilege; /* TRUE for unprivileged delivery */
 212 extern BOOL    deliver_firsttime;      /* True for first delivery attempt */
 213 extern BOOL    deliver_force;          /* TRUE if delivery was forced */
 214 extern BOOL    deliver_freeze;         /* TRUE if delivery is frozen */
 215 extern int     deliver_frozen_at;      /* Time of freezing */
 216 extern uschar *deliver_home;           /* Home directory for pipes */
 217 extern uschar *deliver_host;           /* (First) host for routed local deliveries */
 218                                        /* Remote host for filter */
 219 extern uschar *deliver_host_address;   /* Address for remote delivery filter */
 220 extern uschar *deliver_in_buffer;      /* Buffer for copying file */
 221 extern ino_t   deliver_inode;          /* Inode for appendfile */
 222 extern uschar *deliver_localpart;      /* The local part for delivery */
 223 extern uschar *deliver_localpart_data; /* From local part lookup */
 224 extern uschar *deliver_localpart_orig; /* The original local part for delivery */
 225 extern uschar *deliver_localpart_parent; /* The parent local part for delivery */
 226 extern uschar *deliver_localpart_prefix; /* The stripped prefix, if any */
 227 extern uschar *deliver_localpart_suffix; /* The stripped suffix, if any */
 228 extern BOOL    deliver_force_thaw;     /* TRUE to force thaw in queue run */
 229 extern BOOL    deliver_manual_thaw;    /* TRUE if manually thawed */
 230 extern uschar *deliver_out_buffer;     /* Buffer for copying file */
 231 extern int     deliver_queue_load_max; /* Different value for queue running */
 232 extern address_item *deliver_recipients; /* Current set of addresses */
 233 extern uschar *deliver_selectstring;   /* For selecting by recipient */
 234 extern BOOL    deliver_selectstring_regex; /* String is regex */
 235 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 236 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 237 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 238
 239 extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 240 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 241 extern int     dns_retrans;            /* Retransmission time setting */
 242 extern int     dns_retry;              /* Number of retries */
 243 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 244 extern uschar *dnslist_text;           /* DNS (black) list text message */
 245 extern uschar *dnslist_value;          /* DNS (black) list IP address */
 246 extern tree_node *domainlist_anchor;   /* Tree of defined domain lists */
 247 extern int     domainlist_count;       /* Number defined */
 248 extern BOOL    dont_deliver;           /* TRUE for -N option */
 249 extern BOOL    dot_ends;               /* TRUE if "." ends non-SMTP input */
 250
 251 /* This option is now a no-opt, retained for compatibility */
 252 extern BOOL    drop_cr;                /* For broken local MUAs */
 253
 254 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 255 extern int     envelope_to_remove;     /* Remove envelope_to_headers */
 256 extern int     errno_quota;            /* Quota errno in this OS */
 257 extern int     error_handling;         /* Error handling style */
 258 extern uschar *errors_copy;            /* For taking copies of errors */
 259 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 260 extern int     errors_sender_rc;       /* Return after message to sender*/
 261 extern gid_t   exim_gid;               /* To be used with exim_uid */
 262 extern BOOL    exim_gid_set;           /* TRUE if exim_gid set */
 263 extern uschar *exim_path;              /* Path to exec exim */
 264 extern uid_t   exim_uid;               /* Non-root uid for exim */
 265 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 266 extern int     expand_forbid;          /* RDO flags for forbidding things */
 267 extern int     expand_nlength[];       /* Lengths of numbered strings */
 268 extern int     expand_nmax;            /* Max numerical value */
 269 extern uschar *expand_nstring[];       /* Numbered strings */
 270 extern BOOL    expand_string_forcedfail; /* TRUE if failure was "expected" */
 271 extern BOOL    extract_addresses_remove_arguments; /* Controls -t behaviour */
 272 extern uschar *extra_local_interfaces; /* Local, non-listen interfaces */
 273
 274 extern int     filter_n[FILTER_VARIABLE_COUNT]; /* filter variables */
 275 extern BOOL    filter_running;         /* TRUE while running a filter */
 276 extern int     filter_sn[FILTER_VARIABLE_COUNT]; /* variables set by system filter */
 277 extern uschar *filter_test;            /* Run as a filter tester on this file */
 278 extern uschar *filter_thisaddress;     /* For address looping */
 279 extern int     finduser_retries;       /* Retry count for getpwnam() */
 280 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 281 extern uschar *freeze_tell;            /* Message on (some) freezings */
 282 extern uschar *fudged_queue_times;     /* For use in test harness */
 283
 284 extern uschar *gecos_name;             /* To be expanded when pattern matches */
 285 extern uschar *gecos_pattern;          /* Pattern to match */
 286 extern rewrite_rule *global_rewrite_rules;  /* Chain of rewriting rules */
 287
 288 extern int     header_insert_maxlen;   /* Max for inserting headers */
 289 extern int     header_maxsize;         /* Max total length for header */
 290 extern int     header_line_maxsize;    /* Max for an individual line */
 291 extern header_name header_names[];     /* Table of header names */
 292 extern int     header_names_size;      /* Number of entries */
 293 extern BOOL    header_rewritten;       /* TRUE if header changed by router */
 294 extern uschar *helo_accept_junk_hosts; /* Allowed to use junk arg */
 295 extern uschar *helo_allow_chars;       /* Rogue chars to allow in HELO/EHLO */
 296 extern uschar *helo_lookup_domains;    /* If these given, lookup host name */
 297 extern uschar *helo_try_verify_hosts;  /* Soft check HELO argument for these */
 298 extern BOOL    helo_verified;          /* True if HELO verified */
 299 extern uschar *helo_verify_hosts;      /* Hard check HELO argument for these */
 300 extern uschar *hex_digits;             /* Used in several places */
 301 extern uschar *hold_domains;           /* Hold up deliveries to these */
 302 extern BOOL    host_find_failed_syntax;/* DNS syntax check failure */
 303 extern BOOL    host_checking_callout;  /* TRUE if real callout wanted */
 304 extern uschar *host_data;              /* Obtained from lookup in ACL */
 305 extern uschar *host_lookup;            /* For which IP addresses are always looked up */
 306 extern BOOL    host_lookup_failed;     /* TRUE if lookup failed */
 307 extern uschar *host_lookup_order;      /* Order of host lookup types */
 308 extern uschar *host_lookup_msg;        /* Text for why it failed */
 309 extern int     host_number;            /* For sharing spools */
 310 extern uschar *host_number_string;     /* For expanding */
 311 extern uschar *host_reject_connection; /* Reject these hosts */
 312 extern tree_node *hostlist_anchor;     /* Tree of defined host lists */
 313 extern int     hostlist_count;         /* Number defined */
 314 extern uschar *hosts_connection_nolog; /* Limits the logging option */
 315 extern uschar *hosts_treat_as_local;   /* For routing */
 316
 317 extern int     ignore_bounce_errors_after; /* Keep them for this time. */
 318 extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 319 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 320 extern BOOL    is_inetd;               /* True for inetd calls */
 321
 322 extern int     journal_fd;             /* Fd for journal file */
 323
 324 extern int     keep_malformed;         /* Time to keep malformed messages */
 325
 326 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
 327 extern int     load_average;           /* Most recently read load average */
 328 extern BOOL    local_error_message;    /* True if handling one of these */
 329 extern BOOL    local_from_check;       /* For adding Sender: (global value) */
 330 extern uschar *local_from_prefix;      /* Permitted prefixes */
 331 extern uschar *local_from_suffix;      /* Permitted suffixes */
 332 extern uschar *local_interfaces;       /* For forcing specific interfaces */
 333 extern uschar *local_scan_data;        /* Text returned by local_scan() */
 334 extern optionlist local_scan_options[];/* Option list for local_scan() */
 335 extern int     local_scan_options_count; /* Size of the list */
 336 extern int     local_scan_timeout;     /* Timeout for local_scan() */
 337 extern BOOL    local_sender_retain;    /* Retain Sender: (with no From: check) */
 338 extern gid_t   local_user_gid;         /* As it says; may be set in routers */
 339 extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 340 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 341 extern int     localpartlist_count;    /* Number defined */
 342 extern uschar *log_buffer;             /* For constructing log entries */
 343 extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
 344 extern uschar *log_file_path;          /* If unset, use default */
 345 extern bit_table log_options[];        /* Table of options */
 346 extern int     log_options_count;      /* Size of table */
 347 extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */
 348 extern uschar *log_selector_string;    /* As supplied in the config */
 349 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 350 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 351 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 352 extern uschar *login_sender_address;   /* The actual sender address */
 353 extern lookup_info lookup_list[];      /* Vector of available lookups */
 354 extern int     lookup_list_count;      /* Number of entries in the list */
 355 extern int     lookup_open_max;        /* Max lookup files to cache */
 356 extern uschar *lookup_value;           /* Value looked up from file */
 357
 358 extern macro_item *macros;             /* Configuration macros */
 359 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 360 extern int     max_username_length;    /* For systems with broken getpwnam() */
 361 extern int     message_age;            /* In seconds */
 362 extern uschar *message_body;           /* Start of message body for filter */
 363 extern uschar *message_body_end;       /* End of message body for filter */
 364 extern int     message_body_size;      /* Sic */
 365 extern int     message_body_visible;   /* Amount visible in message_body */
 366 extern int     message_ended;          /* State of message reading and how ended */
 367 extern uschar *message_headers;        /* When built */
 368 extern uschar  message_id_option[];    /* -E<message-id> for use as option */
 369 extern uschar *message_id_external;    /* External form of following */
 370 extern uschar *message_id_domain;      /* Expanded to form domain-part of message_id */
 371 extern uschar *message_id_text;        /* Expanded to form message_id */
 372 extern struct timeval message_id_tv;   /* Time used to create last message_id */
 373 extern int     message_linecount;      /* As it says */
 374 extern BOOL    message_logs;           /* TRUE to write message logs */
 375 extern int     message_size;           /* Size of message */
 376 extern uschar *message_size_limit;     /* As it says */
 377 extern uschar  message_subdir[];       /* Subdirectory for messages */
 378 extern uschar *message_reference;      /* Reference for error messages */
 379 extern BOOL    mua_wrapper;            /* TRUE when Exim is wrapping an MUA */
 380
 381 extern uid_t  *never_users;            /* List of uids never to be used */
 382 extern BOOL    no_multiline_responses; /* For broken clients */
 383
 384 extern optionlist optionlist_auths[];      /* These option lists are made */
 385 extern int     optionlist_auths_size;      /* global so that readconf can */
 386 extern optionlist optionlist_routers[];    /* see them for printing out   */
 387 extern int     optionlist_routers_size;    /* the options.                */
 388 extern optionlist optionlist_transports[];
 389 extern int     optionlist_transports_size;
 390
 391 extern uid_t   original_euid;          /* Original effective uid */
 392 extern gid_t   originator_gid;         /* Gid of whoever wrote spool file */
 393 extern uschar *originator_login;       /* Login of same */
 394 extern uschar *originator_name;        /* Full name of same */
 395 extern uid_t   originator_uid;         /* Uid of ditto */
 396 extern uschar *override_local_interfaces; /* Value of -oX argument */
 397 extern uschar *override_pid_file_path; /* Value of -oP argument */
 398
 399 extern BOOL    parse_allow_group;      /* Allow group syntax */
 400 extern BOOL    parse_found_group;      /* In the middle of a group */
 401 extern uschar *percent_hack_domains;   /* Local domains for which '% operates */
 402 extern uschar *pid_file_path;          /* For writing daemon pids */
 403 extern uschar *pipelining_advertise_hosts; /* As it says */
 404 extern BOOL    preserve_message_logs;  /* Save msglog files */
 405 extern uschar *primary_hostname;       /* Primary name of this computer */
 406 extern BOOL    print_topbitchars;      /* Topbit chars are printing chars */
 407 extern uschar  process_info[];         /* For SIGUSR1 output */
 408 extern uschar *process_log_path;       /* Alternate path */
 409 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 410
 411 extern uschar *qualify_domain_recipient; /* Domain to qualify recipients with */
 412 extern uschar *qualify_domain_sender;  /* Domain to qualify senders with */
 413 extern BOOL    queue_2stage;           /* Run queue in 2-stage manner */
 414 extern uschar *queue_domains;          /* Queue these domains */
 415 extern BOOL    queue_list_requires_admin; /* TRUE if -bp requires admin */
 416 extern BOOL    queue_run_first_delivery; /* If TRUE, first deliveries only */
 417 extern BOOL    queue_run_force;        /* TRUE to force during queue run */
 418 extern BOOL    queue_run_local;        /* Local deliveries only in queue run */
 419 extern BOOL    queue_running;          /* TRUE for queue running process and */
 420                                        /*   immediate children */
 421 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 422 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 423 extern int     queue_interval;         /* Queue running interval */
 424 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 425 extern int     queue_only_load;        /* Max load before auto-queue */
 426 extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 427 extern BOOL    queue_only_override;    /* Allow override from command line */
 428 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 429 extern BOOL    queue_run_in_order;     /* As opposed to random */
 430 extern int     queue_run_max;          /* Max queue runners */
 431 extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
 432 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 433
 434 extern unsigned int random_seed;       /* Seed for random numbers */
 435 extern uschar *raw_active_hostname;    /* Pre-expansion */
 436 extern uschar *raw_sender;             /* Before rewriting */
 437 extern uschar **raw_recipients;        /* Before rewriting */
 438 extern int     raw_recipients_count;
 439 extern int     rcpt_count;             /* Count of RCPT commands in a message */
 440 extern int     rcpt_fail_count;        /* Those that got 5xx */
 441 extern int     rcpt_defer_count;       /* Those that got 4xx */
 442 extern gid_t   real_gid;               /* Real gid */
 443 extern uid_t   real_uid;               /* Real user running program */
 444 extern BOOL    really_exim;            /* FALSE in utilities */
 445 extern BOOL    receive_call_bombout;   /* Flag for crashing log */
 446 extern int     receive_linecount;      /* Mainly for BSMTP errors */
 447 extern int     receive_messagecount;   /* Mainly for BSMTP errors */
 448 extern int     receive_timeout;        /* For non-SMTP acceptance */
 449 extern int     received_count;         /* Count of Received: headers */
 450 extern uschar *received_for;           /* For "for" field */
 451 extern uschar *received_header_text;   /* Definition of Received: header */
 452 extern int     received_headers_max;   /* Max count of Received: headers */
 453 extern int     received_time;          /* Time the message was received */
 454 extern uschar *recipient_data;         /* lookup data for recipients */
 455 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 456 extern uschar *recipient_verify_failure; /* What went wrong */
 457 extern BOOL    recipients_discarded;   /* By an ACL */
 458 extern int     recipients_list_max;    /* Maximum number fitting in list */
 459 extern int     recipients_max;         /* Max permitted */
 460 extern int     recipients_max_reject;  /* If TRUE, reject whole message */
 461 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 462 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 463 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 464 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 465 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 466 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 467 extern int     remote_delivery_count;  /* Number of remote addresses */
 468 extern int     remote_max_parallel;    /* Maximum parallel delivery */
 469 extern uschar *remote_sort_domains;    /* Remote domain sorting order */
 470 extern retry_config *retries;          /* Chain of retry config information */
 471 extern int     retry_data_expire;      /* When to expire retry data */
 472 extern int     retry_interval_max;     /* Absolute maximum */
 473 extern int     retry_maximum_timeout;  /* The maximum timeout */
 474 extern uschar *return_path;            /* Return path for a message */
 475 extern BOOL    return_path_remove;     /* Remove return-path headers */
 476 extern int     rewrite_existflags;     /* Indicate which headers have rewrites */
 477 extern uschar *rfc1413_hosts;          /* RFC hosts */
 478 extern int     rfc1413_query_timeout;  /* Timeout on RFC 1413 calls */
 479 /* extern BOOL    rfc821_domains;  */       /* If set, syntax is 821, not 822 => being abolished */
 480 extern uid_t   root_uid;               /* The uid for root */
 481 extern router_info routers_available[];/* Vector of available routers */
 482 extern router_instance *routers;       /* Chain of instantiated routers */
 483 extern router_instance router_defaults;/* Default values */
 484 extern BOOL    running_in_test_harness; /*TRUE when running_status is patched */
 485 extern ip_address_item *running_interfaces; /* Host's running interfaces */
 486 extern uschar *running_status;         /* Flag string for testing */
 487 extern int     runrc;                  /* rc from ${run} */
 488
 489 extern uschar *search_error_message;   /* Details of lookup problem */
 490 extern BOOL    search_find_defer;      /* Set TRUE if lookup deferred */
 491 extern uschar *self_hostname;          /* Self host after routing->directors */
 492 extern unsigned int sender_address_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender */
 493 extern uschar *sender_address_data;    /* address_data from sender verify */
 494 extern BOOL    sender_address_forced;  /* Set by -f */
 495 extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 496 extern uschar *sender_data;            /* lookup result for senders */
 497 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 498 extern uschar *sender_fullhost;        /* Sender host name + address */
 499 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 500 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 501 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 502 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 503 extern BOOL    sender_host_unknown;    /* TRUE for -bs and -bS except inetd */
 504 extern uschar *sender_ident;           /* Sender identity via RFC 1413 */
 505 extern BOOL    sender_local;           /* TRUE for local senders */
 506 extern uschar *sender_rcvhost;         /* Host data for Received: */
 507 extern BOOL    sender_set_untrusted;   /* Sender set by untrusted caller */
 508 extern uschar *sender_unqualified_hosts; /* Permitted unqualified senders */
 509 extern uschar *sender_verify_failure;  /* What went wrong */
 510 extern address_item *sender_verified_list; /* Saved chain of sender verifies */
 511 extern address_item *sender_verified_failed; /* The one that caused denial */
 512 extern volatile BOOL sigalrm_seen;     /* Flag for sigalrm_handler */
 513 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 514 extern int     smtp_accept_count;      /* Count of connections */
 515 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 516 extern int     smtp_accept_max;        /* Max SMTP connections */
 517 extern int     smtp_accept_max_nonmail;/* Max non-mail commands in one con */
 518 extern uschar *smtp_accept_max_nonmail_hosts; /* Limit non-mail cmds from these hosts */
 519 extern int     smtp_accept_max_per_connection; /* Max msgs per connection */
 520 extern uschar *smtp_accept_max_per_host; /* Max SMTP cons from one IP addr */
 521 extern int     smtp_accept_queue;      /* Queue after so many connections */
 522 extern int     smtp_accept_queue_per_connection; /* Queue after so many msgs */
 523 extern int     smtp_accept_reserve;    /* Reserve these SMTP connections */
 524 extern uschar *smtp_active_hostname;   /* Hostname for this message */
 525 extern BOOL    smtp_authenticated;     /* Sending client has authenticated */
 526 extern uschar *smtp_banner;            /* Banner string (to be expanded) */
 527 extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 528 extern uschar *smtp_command_argument;  /* When running certain ACLs */
 529 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 530 extern double  smtp_delay_mail;        /* Current MAIL delay */
 531 extern double  smtp_delay_rcpt;        /* Current RCPT delay */
 532 extern BOOL    smtp_enforce_sync;      /* Enforce sync rules */
 533 extern uschar *smtp_etrn_command;      /* Command to run */
 534 extern BOOL    smtp_etrn_serialize;    /* Only one at once */
 535 extern FILE   *smtp_in;                /* Incoming SMTP input file */
 536 extern int     smtp_load_reserve;      /* Only from reserved if load > this */
 537 extern int     smtp_mailcmd_count;     /* Count of MAIL commands */
 538 extern int     smtp_max_synprot_errors;/* Max syntax/protocol errors */
 539 extern int     smtp_max_unknown_commands; /* As it says */
 540 extern FILE   *smtp_out;               /* Incoming SMTP output file */
 541 extern uschar *smtp_ratelimit_hosts;   /* Rate limit these hosts */
 542 extern uschar *smtp_ratelimit_mail;    /* Parameters for MAIL limiting */
 543 extern uschar *smtp_ratelimit_rcpt;    /* Parameters for RCPT limiting */
 544 extern uschar *smtp_read_error;        /* Message for SMTP input error */
 545 extern int     smtp_receive_timeout;   /* Applies to each received line */
 546 extern uschar *smtp_reserve_hosts;     /* Hosts for reserved slots */
 547 extern BOOL    smtp_return_error_details; /* TRUE to return full info */
 548 extern int     smtp_rlm_base;          /* Base interval for MAIL rate limit */
 549 extern double  smtp_rlm_factor;        /* Factor for MAIL rate limit */
 550 extern int     smtp_rlm_limit;         /* Max delay */
 551 extern int     smtp_rlm_threshold;     /* Threshold for RCPT rate limit */
 552 extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 553 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 554 extern int     smtp_rlr_limit;         /* Max delay */
 555 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 556 extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
 557 extern BOOL    smtp_use_size;          /* Global for passed connections */
 558 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 559 extern uschar *spool_directory;        /* Name of spool directory */
 560 extern int     string_datestamp_offset;/* After insertion by string_format */
 561 extern BOOL    strip_excess_angle_brackets; /* Surrounding route-addrs */
 562 extern BOOL    strip_trailing_dot;     /* Remove dots at ends of domains */
 563 extern uschar *submission_domain;      /* Domain for submission mode */
 564 extern BOOL    submission_mode;        /* Can be forced from ACL */
 565 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 566 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 567 extern int     syslog_facility;        /* As defined by Syslog.h */
 568 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 569 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 570 extern uschar *system_filter;          /* Name of system filter file */
 571
 572 extern uschar *system_filter_directory_transport;  /* Transports for the */
 573 extern uschar *system_filter_file_transport;       /* system filter */
 574 extern uschar *system_filter_pipe_transport;
 575 extern uschar *system_filter_reply_transport;
 576
 577 extern gid_t   system_filter_gid;      /* Gid for running system filter */
 578 extern BOOL    system_filter_gid_set;  /* TRUE if gid set */
 579 extern uid_t   system_filter_uid;      /* Uid for running system filter */
 580 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 581 extern BOOL    system_filtering;       /* TRUE when running system filter */
 582
 583 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 584 extern int     thismessage_size_limit; /* Limit for this message */
 585 extern int     timeout_frozen_after;   /* Max time to keep frozen messages */
 586 extern BOOL    timestamps_utc;         /* Use UTC for all times */
 587 extern int     transport_count;        /* Count of bytes transported */
 588 extern uschar **transport_filter_argv; /* For on-the-fly filtering */
 589 extern int     transport_filter_timeout; /* Timeout for same */
 590
 591 extern transport_info transports_available[]; /* Vector of available transports */
 592 extern transport_instance *transports; /* Chain of instantiated transports */
 593 extern transport_instance transport_defaults; /* Default values */
 594
 595 extern int     transport_write_timeout;/* Set to time out individual writes */
 596
 597 extern tree_node *tree_dns_fails;      /* Tree of DNS lookup failures */
 598 extern tree_node *tree_duplicates;     /* Tree of duplicate addresses */
 599 extern tree_node *tree_nonrecipients;  /* Tree of nonrecipient addresses */
 600 extern tree_node *tree_unusable;       /* Tree of unusable addresses */
 601
 602 extern BOOL    trusted_caller;         /* Caller is trusted */
 603 extern gid_t  *trusted_groups;         /* List of trusted groups */
 604 extern uid_t  *trusted_users;          /* List of trusted users */
 605 extern uschar *timezone_string;        /* Required timezone setting */
 606
 607 extern uschar *unknown_login;          /* To use when login id unknown */
 608 extern uschar *unknown_username;       /* Ditto */
 609 extern uschar *untrusted_set_sender;   /* Let untrusted users set these senders */
 610 extern uschar *uucp_from_pattern;      /* For recognizing "From " lines */
 611 extern uschar *uucp_from_sender;       /* For building the sender */
 612
 613 extern uschar *warn_message_file;      /* Template for warning messages */
 614 extern uschar *warnmsg_delay;          /* String form of delay time */
 615 extern uschar *warnmsg_recipients;     /* Recipients of warning message */
 616 extern BOOL    write_rejectlog;        /* Control of reject logging */
 617
 618 extern uschar *version_copyright;      /* Copyright notice */
 619 extern uschar *version_date;           /* Date of compilation */
 620 extern uschar *version_cnumber;        /* Compile number */
 621 extern uschar *version_string;         /* Version string */
 622
 623 extern int     warning_count;          /* Delay warnings sent for this msg */
 624
 625 /* End of globals.h */