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Edit File : mail.h \| Size : 66.80 KB
/* ======================================================================== * Copyright 1988-2008 University of Washington * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * * ======================================================================== / / * Program: Mailbox Access routines * * Author: Mark Crispin * UW Technology * University of Washington * Seattle, WA 98195 * Internet: MRC@Washington.EDU * * Date: 22 November 1989 * Last Edited: 22 July 2011 / / The Version / #define CCLIENTVERSION "2007f" / Build parameters / #define CACHEINCREMENT 250 / cache growth increments / #define MAILTMPLEN 1024 / size of a temporary buffer / #define SENDBUFLEN 16385 / size of temporary sending buffer, also * used for SMTP commands and NETMBX generation * buffer so shouldn't be made smaller than * MAILTMPLEN. Note that there's a guard byte, * so this is actually len+1. / #define MAXAUTHENTICATORS 8 / maximum number of SASL authenticators / / maximum number of messages / #define MAXMESSAGES (unsigned long) 1000000 #define MAXLOGINTRIALS 3 / maximum number of client login attempts / #define MAXWILDCARDS 10 / maximum wildcards allowed in LIST/LSUB / / These can't be changed without changing code / #define NUSERFLAGS 30 / maximum number of user flags / #define MAXUSERFLAG 50 / maximum length of a user flag / #define BASEYEAR 1970 / the year time began on Unix DON'T CHANGE / / default for unqualified addresses / #define BADHOST ".MISSING-HOST-NAME." / default for syntax errors in addresses / #define ERRHOST ".SYNTAX-ERROR." / Coddle certain compilers' 6-character symbol limitation / #ifdef __COMPILER_KCC__ #include "shortsym.h" #endif / Function status code / #define NIL 0 / convenient name / #define T 1 / opposite of NIL / #define LONGT (long) 1 / long T to pacify some compilers / #define VOIDT (void ) "" /* void T ditto / / Global and Driver Parameters / / 0xx: driver and authenticator flags / #define ENABLE_DRIVER (long) 1 #define DISABLE_DRIVER (long) 2 #define ENABLE_AUTHENTICATOR (long) 3 #define DISABLE_AUTHENTICATOR (long) 4 #define ENABLE_DEBUG (long) 5 #define DISABLE_DEBUG (long) 6 #define HIDE_AUTHENTICATOR (long) 7 #define UNHIDE_AUTHENTICATOR (long) 8 / 1xx: c-client globals / #define GET_DRIVERS (long) 101 #define SET_DRIVERS (long) 102 #define GET_GETS (long) 103 #define SET_GETS (long) 104 #define GET_CACHE (long) 105 #define SET_CACHE (long) 106 #define GET_SMTPVERBOSE (long) 107 #define SET_SMTPVERBOSE (long) 108 #define GET_RFC822OUTPUT (long) 109 #define SET_RFC822OUTPUT (long) 110 #define GET_READPROGRESS (long) 111 #define SET_READPROGRESS (long) 112 #define GET_THREADERS (long) 113 #define SET_THREADERS (long) 114 #define GET_NAMESPACE (long) 115 #define SET_NAMESPACE (long) 116 #define GET_MAILPROXYCOPY (long) 117 #define SET_MAILPROXYCOPY (long) 118 #define GET_SERVICENAME (long) 119 #define SET_SERVICENAME (long) 120 #define GET_DRIVER (long) 121 #define SET_DRIVER (long) 122 #define GET_EXPUNGEATPING (long) 123 #define SET_EXPUNGEATPING (long) 124 #define GET_PARSEPHRASE (long) 125 #define SET_PARSEPHRASE (long) 126 #define GET_SSLDRIVER (long) 127 #define SET_SSLDRIVER (long) 128 #define GET_TRYSSLFIRST (long) 129 #define SET_TRYSSLFIRST (long) 130 #define GET_BLOCKNOTIFY (long) 131 #define SET_BLOCKNOTIFY (long) 132 #define GET_SORTRESULTS (long) 133 #define SET_SORTRESULTS (long) 134 #define GET_THREADRESULTS (long) 135 #define SET_THREADRESULTS (long) 136 #define GET_PARSELINE (long) 137 #define SET_PARSELINE (long) 138 #define GET_NEWSRCQUERY (long) 139 #define SET_NEWSRCQUERY (long) 140 #define GET_FREEENVELOPESPAREP (long) 141 #define SET_FREEENVELOPESPAREP (long) 142 #define GET_FREEELTSPAREP (long) 143 #define SET_FREEELTSPAREP (long) 144 #define GET_SSLSTART (long) 145 #define SET_SSLSTART (long) 146 #define GET_DEBUGSENSITIVE (long) 147 #define SET_DEBUGSENSITIVE (long) 148 #define GET_TCPDEBUG (long) 149 #define SET_TCPDEBUG (long) 150 #define GET_FREESTREAMSPAREP (long) 151 #define SET_FREESTREAMSPAREP (long) 152 #define GET_FREEBODYSPAREP (long) 153 #define SET_FREEBODYSPAREP (long) 154 #define GET_COPYUID (long) 155 #define SET_COPYUID (long) 156 #define GET_APPENDUID (long) 157 #define SET_APPENDUID (long) 158 #define GET_RFC822OUTPUTFULL (long) 159 #define SET_RFC822OUTPUTFULL (long) 160 #define GET_BLOCKENVINIT (long) 161 #define SET_BLOCKENVINIT (long) 162 / 2xx: environment / #define GET_USERNAME (long) 201 #define SET_USERNAME (long) 202 #define GET_HOMEDIR (long) 203 #define SET_HOMEDIR (long) 204 #define GET_LOCALHOST (long) 205 #define SET_LOCALHOST (long) 206 #define GET_SYSINBOX (long) 207 #define SET_SYSINBOX (long) 208 #define GET_USERPROMPT (long) 209 #define SET_USERPROMPT (long) 210 #define GET_DISABLEPLAINTEXT (long) 211 #define SET_DISABLEPLAINTEXT (long) 212 #define GET_CHROOTSERVER (long) 213 #define SET_CHROOTSERVER (long) 214 #define GET_ADVERTISETHEWORLD (long) 215 #define SET_ADVERTISETHEWORLD (long) 216 #define GET_DISABLEAUTOSHAREDNS (long) 217 #define SET_DISABLEAUTOSHAREDNS (long) 218 #define GET_MAILSUBDIR 219 #define SET_MAILSUBDIR 220 #define GET_DISABLE822TZTEXT 221 #define SET_DISABLE822TZTEXT 222 #define GET_LIMITEDADVERTISE (long) 223 #define SET_LIMITEDADVERTISE (long) 224 #define GET_LOGOUTHOOK (long) 225 #define SET_LOGOUTHOOK (long) 226 #define GET_LOGOUTDATA (long) 227 #define SET_LOGOUTDATA (long) 228 #define GET_EXTERNALAUTHID (long) 229 #define SET_EXTERNALAUTHID (long) 230 #define GET_SSLCAPATH (long) 231 #define SET_SSLCAPATH (long) 232 / 3xx: TCP/IP / #define GET_OPENTIMEOUT (long) 300 #define SET_OPENTIMEOUT (long) 301 #define GET_READTIMEOUT (long) 302 #define SET_READTIMEOUT (long) 303 #define GET_WRITETIMEOUT (long) 304 #define SET_WRITETIMEOUT (long) 305 #define GET_CLOSETIMEOUT (long) 306 #define SET_CLOSETIMEOUT (long) 307 #define GET_TIMEOUT (long) 308 #define SET_TIMEOUT (long) 309 #define GET_RSHTIMEOUT (long) 310 #define SET_RSHTIMEOUT (long) 311 #define GET_ALLOWREVERSEDNS (long) 312 #define SET_ALLOWREVERSEDNS (long) 313 #define GET_RSHCOMMAND (long) 314 #define SET_RSHCOMMAND (long) 315 #define GET_RSHPATH (long) 316 #define SET_RSHPATH (long) 317 #define GET_SSHTIMEOUT (long) 318 #define SET_SSHTIMEOUT (long) 319 #define GET_SSHCOMMAND (long) 320 #define SET_SSHCOMMAND (long) 321 #define GET_SSHPATH (long) 322 #define SET_SSHPATH (long) 323 #define GET_SSLCERTIFICATEQUERY (long) 324 #define SET_SSLCERTIFICATEQUERY (long) 325 #define GET_SSLFAILURE (long) 326 #define SET_SSLFAILURE (long) 327 #define GET_NEWSRCCANONHOST (long) 328 #define SET_NEWSRCCANONHOST (long) 329 #define GET_KINIT (long) 330 #define SET_KINIT (long) 331 #define GET_SSLCLIENTCERT (long) 332 #define SET_SSLCLIENTCERT (long) 333 #define GET_SSLCLIENTKEY (long) 334 #define SET_SSLCLIENTKEY (long) 335 #define GET_KERBEROS_CP_SVR_NAME (long) 336 #define SET_KERBEROS_CP_SVR_NAME (long) 337 / 4xx: network drivers / #define GET_MAXLOGINTRIALS (long) 400 #define SET_MAXLOGINTRIALS (long) 401 #define GET_LOOKAHEAD (long) 402 #define SET_LOOKAHEAD (long) 403 #define GET_IMAPPORT (long) 404 #define SET_IMAPPORT (long) 405 #define GET_PREFETCH (long) 406 #define SET_PREFETCH (long) 407 #define GET_CLOSEONERROR (long) 408 #define SET_CLOSEONERROR (long) 409 #define GET_POP3PORT (long) 410 #define SET_POP3PORT (long) 411 #define GET_UIDLOOKAHEAD (long) 412 #define SET_UIDLOOKAHEAD (long) 413 #define GET_NNTPPORT (long) 414 #define SET_NNTPPORT (long) 415 #define GET_IMAPENVELOPE (long) 416 #define SET_IMAPENVELOPE (long) 417 #define GET_IMAPREFERRAL (long) 418 #define SET_IMAPREFERRAL (long) 419 #define GET_SSLIMAPPORT (long) 420 #define SET_SSLIMAPPORT (long) 421 #define GET_SSLPOPPORT (long) 422 #define SET_SSLPOPPORT (long) 423 #define GET_SSLNNTPPORT (long) 424 #define SET_SSLNNTPPORT (long) 425 #define GET_SSLSMTPPORT (long) 426 #define SET_SSLSMTPPORT (long) 427 #define GET_SMTPPORT (long) 428 #define SET_SMTPPORT (long) 429 #define GET_IMAPEXTRAHEADERS (long) 430 #define SET_IMAPEXTRAHEADERS (long) 431 #define GET_ACL (long) 432 #define SET_ACL (long) 433 #define GET_LISTRIGHTS (long) 434 #define SET_LISTRIGHTS (long) 435 #define GET_MYRIGHTS (long) 436 #define SET_MYRIGHTS (long) 437 #define GET_QUOTA (long) 438 #define SET_QUOTA (long) 439 #define GET_QUOTAROOT (long) 440 #define SET_QUOTAROOT (long) 441 #define GET_IMAPTRYSSL (long) 442 #define SET_IMAPTRYSSL (long) 443 #define GET_FETCHLOOKAHEAD (long) 444 #define SET_FETCHLOOKAHEAD (long) 445 #define GET_NNTPRANGE (long) 446 #define SET_NNTPRANGE (long) 447 #define GET_NNTPHIDEPATH (long) 448 #define SET_NNTPHIDEPATH (long) 449 #define GET_SENDCOMMAND (long) 450 #define SET_SENDCOMMAND (long) 451 #define GET_IDLETIMEOUT (long) 452 #define SET_IDLETIMEOUT (long) 453 #define GET_FETCHLOOKAHEADLIMIT (long) 454 #define SET_FETCHLOOKAHEADLIMIT (long) 455 / 5xx: local file drivers / #define GET_MBXPROTECTION (long) 500 #define SET_MBXPROTECTION (long) 501 #define GET_DIRPROTECTION (long) 502 #define SET_DIRPROTECTION (long) 503 #define GET_LOCKPROTECTION (long) 504 #define SET_LOCKPROTECTION (long) 505 #define GET_FROMWIDGET (long) 506 #define SET_FROMWIDGET (long) 507 #define GET_NEWSACTIVE (long) 508 #define SET_NEWSACTIVE (long) 509 #define GET_NEWSSPOOL (long) 510 #define SET_NEWSSPOOL (long) 511 #define GET_NEWSRC (long) 512 #define SET_NEWSRC (long) 513 #define GET_EXTENSION (long) 514 #define SET_EXTENSION (long) 515 #define GET_DISABLEFCNTLLOCK (long) 516 #define SET_DISABLEFCNTLLOCK (long) 517 #define GET_LOCKEACCESERROR (long) 518 #define SET_LOCKEACCESERROR (long) 519 #define GET_LISTMAXLEVEL (long) 520 #define SET_LISTMAXLEVEL (long) 521 #define GET_ANONYMOUSHOME (long) 522 #define SET_ANONYMOUSHOME (long) 523 #define GET_FTPHOME (long) 524 #define SET_FTPHOME (long) 525 #define GET_PUBLICHOME (long) 526 #define SET_PUBLICHOME (long) 527 #define GET_SHAREDHOME (long) 528 #define SET_SHAREDHOME (long) 529 #define GET_MHPROFILE (long) 530 #define SET_MHPROFILE (long) 531 #define GET_MHPATH (long) 532 #define SET_MHPATH (long) 533 #define GET_ONETIMEEXPUNGEATPING (long) 534 #define SET_ONETIMEEXPUNGEATPING (long) 535 #define GET_USERHASNOLIFE (long) 536 #define SET_USERHASNOLIFE (long) 537 #define GET_FTPPROTECTION (long) 538 #define SET_FTPPROTECTION (long) 539 #define GET_PUBLICPROTECTION (long) 540 #define SET_PUBLICPROTECTION (long) 541 #define GET_SHAREDPROTECTION (long) 542 #define SET_SHAREDPROTECTION (long) 543 #define GET_LOCKTIMEOUT (long) 544 #define SET_LOCKTIMEOUT (long) 545 #define GET_NOTIMEZONES (long) 546 #define SET_NOTIMEZONES (long) 547 #define GET_HIDEDOTFILES (long) 548 #define SET_HIDEDOTFILES (long) 549 #define GET_FTPDIRPROTECTION (long) 550 #define SET_FTPDIRPROTECTION (long) 551 #define GET_PUBLICDIRPROTECTION (long) 552 #define SET_PUBLICDIRPROTECTION (long) 553 #define GET_SHAREDDIRPROTECTION (long) 554 #define SET_SHAREDDIRPROTECTION (long) 555 #define GET_TRUSTDNS (long) 556 #define SET_TRUSTDNS (long) 557 #define GET_SASLUSESPTRNAME (long) 558 #define SET_SASLUSESPTRNAME (long) 559 #define GET_NETFSSTATBUG (long) 560 #define SET_NETFSSTATBUG (long) 561 #define GET_SNARFMAILBOXNAME (long) 562 #define SET_SNARFMAILBOXNAME (long) 563 #define GET_SNARFINTERVAL (long) 564 #define SET_SNARFINTERVAL (long) 565 #define GET_SNARFPRESERVE (long) 566 #define SET_SNARFPRESERVE (long) 567 #define GET_INBOXPATH (long) 568 #define SET_INBOXPATH (long) 569 #define GET_DIRFMTTEST (long) 570 #define SET_DIRFMTTEST (long) 571 #define GET_SCANCONTENTS (long) 572 #define SET_SCANCONTENTS (long) 573 #define GET_MHALLOWINBOX (long) 574 #define SET_MHALLOWINBOX (long) 575 / Driver flags / #define DR_DISABLE (long) 0x1 / driver is disabled / #define DR_LOCAL (long) 0x2 / local file driver / #define DR_MAIL (long) 0x4 / supports mail / #define DR_NEWS (long) 0x8 / supports news / #define DR_READONLY (long) 0x10 / driver only allows readonly access / #define DR_NOFAST (long) 0x20 / "fast" data is slow (whole msg fetch) / #define DR_NAMESPACE (long) 0x40/ driver has a special namespace / #define DR_LOWMEM (long) 0x80 / low amounts of memory available / #define DR_LOCKING (long) 0x100 / driver does locking / #define DR_CRLF (long) 0x200 / driver internal form uses CRLF newlines / #define DR_NOSTICKY (long) 0x400/ driver does not support sticky UIDs / #define DR_RECYCLE (long) 0x800 / driver does stream recycling / #define DR_XPOINT (long) 0x1000 / needs to be checkpointed / / driver has no real internal date / #define DR_NOINTDATE (long) 0x2000 / driver does not announce new mail / #define DR_NONEWMAIL (long) 0x4000 / driver does not announce new mail when RO / #define DR_NONEWMAILRONLY (long) 0x8000 / driver can be halfopen / #define DR_HALFOPEN (long) 0x10000 #define DR_DIRFMT (long) 0x20000/ driver is a directory-format / #define DR_MODSEQ (long) 0x40000/ driver supports modseqs / / Cache management function codes / #define CH_INIT (long) 10 / initialize cache / #define CH_SIZE (long) 11 / (re-)size the cache / #define CH_MAKEELT (long) 30 / return elt, make if needed / #define CH_ELT (long) 31 / return elt if exists / #define CH_SORTCACHE (long) 35 / return sortcache entry, make if needed / #define CH_FREE (long) 40 / free space used by elt / / free space used by sortcache / #define CH_FREESORTCACHE (long) 43 #define CH_EXPUNGE (long) 45 / delete elt pointer from list / / Mailbox open options * For compatibility with the past, OP_DEBUG must always be 1. / #define OP_DEBUG (long) 0x1 / debug protocol negotiations / #define OP_READONLY (long) 0x2 / read-only open / #define OP_ANONYMOUS (long) 0x4 / anonymous open of newsgroup / #define OP_SHORTCACHE (long) 0x8/ short (elt-only) caching / #define OP_SILENT (long) 0x10 / don't pass up events (internal use) / #define OP_PROTOTYPE (long) 0x20/ return driver prototype / #define OP_HALFOPEN (long) 0x40 / half-open (IMAP connect but no select) / #define OP_EXPUNGE (long) 0x80 / silently expunge recycle stream / #define OP_SECURE (long) 0x100 / don't do non-secure authentication / #define OP_TRYSSL (long) 0x200 / try SSL first / / use multiple newsrc files / #define OP_MULNEWSRC (long) 0x400 #define OP_NOKOD (long) 0x800 / suppress kiss-of-death / #define OP_SNIFF (long) 0x1000 / metadata only open / / reserved for application use / #define OP_RESERVED (unsigned long) 0xff000000 / Net open options / / no error messages / #define NET_SILENT ((unsigned long) 0x80000000) / no validation of SSL certificates / #define NET_NOVALIDATECERT ((unsigned long) 0x40000000) / no open timeout / #define NET_NOOPENTIMEOUT ((unsigned long) 0x20000000) / TLS not SSL / #define NET_TLSCLIENT ((unsigned long) 0x10000000) / try SSL mode / #define NET_TRYSSL ((unsigned long) 0x8000000) / Close options / #define CL_EXPUNGE (long) 1 / expunge silently / / Fetch options / #define FT_UID (long) 0x1 / argument is a UID / #define FT_PEEK (long) 0x2 / peek at data / #define FT_NOT (long) 0x4 / NOT flag for header lines fetch / #define FT_INTERNAL (long) 0x8 / text can be internal strings / / IMAP prefetch text when fetching header / #define FT_PREFETCHTEXT (long) 0x20 #define FT_NOHDRS (long) 0x40 / suppress fetching extra headers (note that this breaks news handling) / #define FT_NEEDENV (long) 0x80 / (internal use) include envelope / #define FT_NEEDBODY (long) 0x100/ (internal use) include body structure / / no fetch lookahead / #define FT_NOLOOKAHEAD (long) 0x200 / (internal use) lookahead in hdr searching / #define FT_SEARCHLOOKAHEAD (long) 0x400 / stringstruct return hack / #define FT_RETURNSTRINGSTRUCT (long) 0x800 / Flagging options / #define ST_UID (long) 0x1 / argument is a UID sequence / #define ST_SILENT (long) 0x2 / don't return results / #define ST_SET (long) 0x4 / set vs. clear / / Expunge options / #define EX_UID (long) 0x1 / argument is a UID sequence / / Copy options / #define CP_UID (long) 0x1 / argument is a UID sequence / #define CP_MOVE (long) 0x2 / delete from source after copying / / set debug in any created stream / #define CP_DEBUG (long) 0x20000000 / Search/sort/thread options / #define SE_UID (long) 0x1 / return UID / #define SE_FREE (long) 0x2 / free search program after finished / #define SE_NOPREFETCH (long) 0x4/ no search prefetching / #define SO_FREE (long) 0x8 / free sort program after finished / #define SE_NOSERVER (long) 0x10 / don't do server-based search/sort/thread / #define SE_RETAIN (long) 0x20 / retain previous search results / #define SO_OVERVIEW (long) 0x40 / use overviews in searching (NNTP only) / #define SE_NEEDBODY (long) 0x80 / include body structure in prefetch / #define SE_NOHDRS (long) 0x100 / suppress prefetching extra headers (note that this breaks news handling) / #define SE_NOLOCAL (long) 0x200 / no local retry (IMAP only) / #define SO_NOSERVER SE_NOSERVER / compatibility name / #define SE_SILLYOK (long) 0x400 / allow silly searches / / Status options / #define SA_MESSAGES (long) 0x1 / number of messages / #define SA_RECENT (long) 0x2 / number of recent messages / #define SA_UNSEEN (long) 0x4 / number of unseen messages / #define SA_UIDNEXT (long) 0x8 / next UID to be assigned / / UID validity value / #define SA_UIDVALIDITY (long) 0x10 / set OP_DEBUG on any created stream / #define SA_DEBUG (long) 0x10000000 / use multiple newsrcs / #define SA_MULNEWSRC (long) 0x20000000 / Mailgets flags / #define MG_UID (long) 0x1 / message number is a UID / #define MG_COPY (long) 0x2 / must return copy of argument / / SASL authenticator categories / #define AU_SECURE (long) 0x1 / /secure allowed / #define AU_AUTHUSER (long) 0x2 / /authuser=xxx allowed / / authenticator hidden / #define AU_HIDE (long) 0x10000000 / authenticator disabled / #define AU_DISABLE (long) 0x20000000 / Garbage collection flags / #define GC_ELT (long) 0x1 / message cache elements / #define GC_ENV (long) 0x2 / envelopes and bodies / #define GC_TEXTS (long) 0x4 / cached texts / / mm_log()/mm_notify() condition codes / #define WARN (long) 1 / mm_log warning type / #define ERROR (long) 2 / mm_log error type / #define PARSE (long) 3 / mm_log parse error type / #define BYE (long) 4 / mm_notify stream dying / #define TCPDEBUG (long) 5 / mm_log TCP debug babble / / Bits from mail_parse_flags(). Don't change these, since the header format * used by tenex, mtx, and mbx corresponds to these bits. / #define fSEEN 0x1 #define fDELETED 0x2 #define fFLAGGED 0x4 #define fANSWERED 0x8 #define fOLD 0x10 #define fDRAFT 0x20 #define fEXPUNGED 0x8000 / internal flag / / Bits for mm_list() and mm_lsub() / / Note that (LATT_NOINFERIORS LATT_HASCHILDREN LATT_HASNOCHILDREN) and * (LATT_NOSELECT LATT_MARKED LATT_UNMARKED) each have eight possible states, * but only four of these are valid. The other four are silly states which * while invalid can unfortunately be expressed in the IMAP protocol. / / terminal node in hierarchy / #define LATT_NOINFERIORS (long) 0x1 / name can not be selected / #define LATT_NOSELECT (long) 0x2 / changed since last accessed / #define LATT_MARKED (long) 0x4 / accessed since last changed / #define LATT_UNMARKED (long) 0x8 / name has referral to remote mailbox / #define LATT_REFERRAL (long) 0x10 / has selectable inferiors / #define LATT_HASCHILDREN (long) 0x20 / has no selectable inferiors / #define LATT_HASNOCHILDREN (long) 0x40 / Sort functions / #define SORTDATE 0 / date / #define SORTARRIVAL 1 / arrival date / #define SORTFROM 2 / from / #define SORTSUBJECT 3 / subject / #define SORTTO 4 / to / #define SORTCC 5 / cc / #define SORTSIZE 6 / size / / imapreferral_t codes / #define REFAUTHFAILED (long) 0 / authentication referral -- not logged in / #define REFAUTH (long) 1 / authentication referral -- logged in / #define REFSELECT (long) 2 / select referral / #define REFCREATE (long) 3 #define REFDELETE (long) 4 #define REFRENAME (long) 5 #define REFSUBSCRIBE (long) 6 #define REFUNSUBSCRIBE (long) 7 #define REFSTATUS (long) 8 #define REFCOPY (long) 9 #define REFAPPEND (long) 10 / sendcommand_t codes / / expunge response deferred / #define SC_EXPUNGEDEFERRED (long) 1 / Block notification codes / #define BLOCK_NONE 0 / not blocked / #define BLOCK_SENSITIVE 1 / sensitive code, disallow alarms / #define BLOCK_NONSENSITIVE 2 / non-sensitive code, allow alarms / #define BLOCK_DNSLOOKUP 10 / blocked on DNS lookup / #define BLOCK_TCPOPEN 11 / blocked on TCP open / #define BLOCK_TCPREAD 12 / blocked on TCP read / #define BLOCK_TCPWRITE 13 / blocked on TCP write / #define BLOCK_TCPCLOSE 14 / blocked on TCP close / #define BLOCK_FILELOCK 20 / blocked on file locking / / In-memory sized-text / #define SIZEDTEXT struct mail_sizedtext SIZEDTEXT { unsigned char data; /* text / unsigned long size; / size of text in octets / }; / String list / #define STRINGLIST struct string_list STRINGLIST { SIZEDTEXT text; / string text / STRINGLIST next; }; /* Parse results from mail_valid_net_parse / #define NETMAXHOST 256 #define NETMAXUSER 65 #define NETMAXMBX (MAILTMPLEN/4) #define NETMAXSRV 21 typedef struct net_mailbox { char host[NETMAXHOST]; / host name (may be canonicalized) / char orighost[NETMAXHOST]; / host name before canonicalization / char user[NETMAXUSER]; / user name / char authuser[NETMAXUSER]; / authentication user name / char mailbox[NETMAXMBX]; / mailbox name / char service[NETMAXSRV]; / service name / unsigned long port; / TCP port number / unsigned int anoflag : 1; / anonymous / unsigned int dbgflag : 1; / debug flag / unsigned int secflag : 1; / secure flag / unsigned int sslflag : 1; / SSL driver flag / unsigned int trysslflag : 1; / try SSL driver first flag / unsigned int novalidate : 1; / don't validate certificates / unsigned int tlsflag : 1; / TLS flag / unsigned int notlsflag : 1; / do not do TLS flag / unsigned int readonlyflag : 1;/ want readonly / unsigned int norsh : 1; / don't use rsh/ssh / unsigned int loser : 1; / server is a loser / unsigned int tlssslv23 : 1; / force SSLv23 client method over TLS / } NETMBX; / Item in an address list / #define ADDRESS struct mail_address ADDRESS { char personal; /* personal name phrase / char adl; /* at-domain-list source route / char mailbox; /* mailbox name / char host; /* domain name of mailbox's host / char error; /* error in address from SMTP module / struct { char type; /* address type (default "rfc822") / char addr; /* address as xtext / } orcpt; ADDRESS next; /* pointer to next address in list / }; / Message envelope / typedef struct mail_envelope { unsigned int incomplete : 1; / envelope may be incomplete / unsigned int imapenvonly : 1; / envelope only has IMAP envelope / char remail; /* remail header if any / ADDRESS return_path; /* error return address / unsigned char date; /* message composition date string / ADDRESS from; /* originator address list / ADDRESS sender; /* sender address list / ADDRESS reply_to; /* reply address list / char subject; /* message subject string / ADDRESS to; /* primary recipient list / ADDRESS cc; /* secondary recipient list / ADDRESS bcc; /* blind secondary recipient list / char in_reply_to; /* replied message ID / char message_id; /* message ID / char newsgroups; /* USENET newsgroups / char followup_to; /* USENET reply newsgroups / char references; /* USENET references / void sparep; /* spare pointer reserved for main program / } ENVELOPE; / Primary body types / / If you change any of these you must also change body_types in rfc822.c / #define TYPETEXT 0 / unformatted text / #define TYPEMULTIPART 1 / multiple part / #define TYPEMESSAGE 2 / encapsulated message / #define TYPEAPPLICATION 3 / application data / #define TYPEAUDIO 4 / audio / #define TYPEIMAGE 5 / static image / #define TYPEVIDEO 6 / video / #define TYPEMODEL 7 / model / #define TYPEOTHER 8 / unknown / #define TYPEMAX 15 / maximum type code / / Body encodings / / If you change any of these you must also change body_encodings in rfc822.c / #define ENC7BIT 0 / 7 bit SMTP semantic data / #define ENC8BIT 1 / 8 bit SMTP semantic data / #define ENCBINARY 2 / 8 bit binary data / #define ENCBASE64 3 / base-64 encoded data / #define ENCQUOTEDPRINTABLE 4 / human-readable 8-as-7 bit data / #define ENCOTHER 5 / unknown / #define ENCMAX 10 / maximum encoding code / / Body contents / #define BODY struct mail_bodystruct #define MESSAGE struct mail_body_message #define PARAMETER struct mail_body_parameter #define PART struct mail_body_part #define PARTTEXT struct mail_body_text / Message body text / PARTTEXT { unsigned long offset; / offset from body origin / SIZEDTEXT text; / text / }; / Message body structure / BODY { unsigned short type; / body primary type / unsigned short encoding; / body transfer encoding / char subtype; /* subtype string / PARAMETER parameter; /* parameter list / char id; /* body identifier / char description; /* body description / struct { / body disposition / char type; /* disposition type / PARAMETER parameter; /* disposition parameters / } disposition; STRINGLIST language; /* body language / char location; /* body content URI / PARTTEXT mime; / MIME header / PARTTEXT contents; / body part contents / union { / different ways of accessing contents / PART part; /* body part list / MESSAGE msg; /* body encapsulated message / } nested; struct { unsigned long lines; / size of text in lines / unsigned long bytes; / size of text in octets / } size; char md5; /* MD5 checksum / void sparep; /* spare pointer reserved for main program / }; / Parameter list / PARAMETER { char attribute; /* parameter attribute name / char value; /* parameter value / PARAMETER next; /* next parameter in list / }; / Multipart content list / PART { BODY body; / body information for this part / PART next; /* next body part / }; / RFC-822 Message / MESSAGE { ENVELOPE env; /* message envelope / BODY body; /* message body / PARTTEXT full; / full message / STRINGLIST lines; /* lines used to filter header / PARTTEXT header; / header text / PARTTEXT text; / body text / }; / Entry in the message cache array / typedef struct message_cache { unsigned long msgno; / message number / unsigned int lockcount : 8; / non-zero if multiple references / unsigned long rfc822_size; / # of bytes of message as raw RFC822 / struct { / c-client internal use only / unsigned long uid; / message unique ID / unsigned long mod; / modseq / PARTTEXT special; / special text pointers / MESSAGE msg; / internal message pointers / union { / driver internal use / unsigned long data; void ptr; } spare; unsigned int sequence : 1; /* saved sequence bit / unsigned int dirty : 1; / driver internal use / unsigned int filter : 1; / driver internal use / unsigned int ghost : 1; / driver internal use / } private; / internal date / unsigned int day : 5; / day of month (1-31) / unsigned int month : 4; / month of year (1-12) / unsigned int year : 7; / year since BASEYEAR (expires in 127 yrs) / unsigned int hours: 5; / hours (0-23) / unsigned int minutes: 6; / minutes (0-59) / unsigned int seconds: 6; / seconds (0-59) / unsigned int zoccident : 1; / non-zero if west of UTC / unsigned int zhours : 4; / hours from UTC (0-12) / unsigned int zminutes: 6; / minutes (0-59) / / system flags / unsigned int seen : 1; / system Seen flag / unsigned int deleted : 1; / system Deleted flag / unsigned int flagged : 1; / system Flagged flag / unsigned int answered : 1; / system Answered flag / unsigned int draft : 1; / system Draft flag / unsigned int recent : 1; / system Recent flag / / message status / unsigned int valid : 1; / elt has valid flags / unsigned int searched : 1; / message was searched / unsigned int sequence : 1; / message is in sequence / / reserved for use by main program / unsigned int spare : 1; / first spare bit / unsigned int spare2 : 1; / second spare bit / unsigned int spare3 : 1; / third spare bit / unsigned int spare4 : 1; / fourth spare bit / unsigned int spare5 : 1; / fifth spare bit / unsigned int spare6 : 1; / sixth spare bit / unsigned int spare7 : 1; / seventh spare bit / unsigned int spare8 : 1; / eighth spare bit / void sparep; /* spare pointer / unsigned long user_flags; / user-assignable flags / } MESSAGECACHE; / String structure / #define STRINGDRIVER struct string_driver typedef struct mailstring { void data; /* driver-dependent data / unsigned long data1; / driver-dependent data / unsigned long size; / total length of string / char chunk; /* base address of chunk / unsigned long chunksize; / size of chunk / unsigned long offset; / offset of this chunk in base / char curpos; /* current position in chunk / unsigned long cursize; / number of bytes remaining in chunk / STRINGDRIVER dtb; /* driver that handles this type of string / } STRING; / Dispatch table for string driver / STRINGDRIVER { / initialize string driver / void (init) (STRING s,void data,unsigned long size); /* get next character in string / char (next) (STRING s); / set position in string / void (setpos) (STRING s,unsigned long i); }; / Stringstruct access routines / #define INIT(s,d,data,size) ((((s)->dtb = &d)->init) (s,data,size)) #define SIZE(s) ((s)->size - GETPOS (s)) #define CHR(s) ((s)->curpos) #define SNX(s) (--(s)->cursize ? (s)->curpos++ : ((s)->dtb->next) (s)) #define GETPOS(s) ((s)->offset + ((s)->curpos - (s)->chunk)) #define SETPOS(s,i) ((s)->dtb->setpos) (s,i) /* Search program / #define SEARCHPGM struct search_program #define SEARCHHEADER struct search_header #define SEARCHSET struct search_set #define SEARCHOR struct search_or #define SEARCHPGMLIST struct search_pgm_list SEARCHHEADER { / header search / SIZEDTEXT line; / header line / SIZEDTEXT text; / text in header / SEARCHHEADER next; /* next in list / }; SEARCHSET { / message set / unsigned long first; / sequence number / unsigned long last; / last value, if a range / SEARCHSET next; /* next in list / }; SEARCHOR { SEARCHPGM first; /* first program / SEARCHPGM second; /* second program / SEARCHOR next; /* next in list / }; SEARCHPGMLIST { SEARCHPGM pgm; /* search program / SEARCHPGMLIST next; /* next in list / }; SEARCHPGM { / search program / SEARCHSET msgno; /* message numbers / SEARCHSET uid; /* unique identifiers / SEARCHOR or; /* or'ed in programs / SEARCHPGMLIST not; /* and'ed not program / SEARCHHEADER header; /* list of headers / STRINGLIST bcc; /* bcc recipients / STRINGLIST body; /* text in message body / STRINGLIST cc; /* cc recipients / STRINGLIST from; /* originator / STRINGLIST keyword; /* keywords / STRINGLIST unkeyword; /* unkeywords / STRINGLIST subject; /* text in subject / STRINGLIST text; /* text in headers and body / STRINGLIST to; /* to recipients / unsigned long larger; / larger than this size / unsigned long smaller; / smaller than this size / unsigned long older; / older than this interval / unsigned long younger; / younger than this interval / unsigned short sentbefore; / sent before this date / unsigned short senton; / sent on this date / unsigned short sentsince; / sent since this date / unsigned short before; / before this date / unsigned short on; / on this date / unsigned short since; / since this date / unsigned int answered : 1; / answered messages / unsigned int unanswered : 1; / unanswered messages / unsigned int deleted : 1; / deleted messages / unsigned int undeleted : 1; / undeleted messages / unsigned int draft : 1; / message draft / unsigned int undraft : 1; / message undraft / unsigned int flagged : 1; / flagged messages / unsigned int unflagged : 1; / unflagged messages / unsigned int recent : 1; / recent messages / unsigned int old : 1; / old messages / unsigned int seen : 1; / seen messages / unsigned int unseen : 1; / unseen messages / / These must be simulated in IMAP / STRINGLIST return_path; /* error return address / STRINGLIST sender; /* sender address list / STRINGLIST reply_to; /* reply address list / STRINGLIST in_reply_to; /* replied message ID / STRINGLIST message_id; /* message ID / STRINGLIST newsgroups; /* USENET newsgroups / STRINGLIST followup_to; /* USENET reply newsgroups / STRINGLIST references; /* USENET references / }; / Mailbox status / typedef struct mbx_status { long flags; / validity flags / unsigned long messages; / number of messages / unsigned long recent; / number of recent messages / unsigned long unseen; / number of unseen messages / unsigned long uidnext; / next UID to be assigned / unsigned long uidvalidity; / UID validity value / } MAILSTATUS; / Sort program / typedef void (postsort_t) (void sc); #define SORTPGM struct sort_program SORTPGM { unsigned int reverse : 1; / sort function is to be reversed / unsigned int abort : 1; / abort sorting / short function; / sort function / unsigned long nmsgs; / number of messages being sorted / struct { unsigned long cached; / number of messages cached so far / unsigned long sorted; / number of messages sorted so far / unsigned long postsorted; / number of postsorted messages so far / } progress; postsort_t postsort; / post sorter / SORTPGM next; /* next function / }; / Sort cache / #define SORTCACHE struct sort_cache SORTCACHE { unsigned int sorted : 1; / message has been sorted / unsigned int postsorted : 1; / message has been postsorted / unsigned int refwd : 1; / subject is a re or fwd / unsigned int dirty : 1; / has data not written to backup / SORTPGM pgm; /* sort program / unsigned long num; / message number (sequence or UID) / unsigned long date; / sent date / unsigned long arrival; / arrival date / unsigned long size; / message size / char from; /* from string / char to; /* to string / char cc; /* cc string / char subject; /* extracted subject string / char message_id; /* message-id string / char unique; /* unique string, normally message-id / STRINGLIST references; /* references string / }; / ACL list / #define ACLLIST struct acl_list ACLLIST { char identifier; /* authentication identifier / char rights; /* access rights / ACLLIST next; }; /* Quota resource list / #define QUOTALIST struct quota_list QUOTALIST { char name; /* resource name / unsigned long usage; / resource usage / unsigned long limit; / resource limit / QUOTALIST next; /* next resource / }; / Mail Access I/O stream / / Structure for mail driver dispatch / #define DRIVER struct driver / Mail I/O stream / typedef struct mail_stream { DRIVER dtb; /* dispatch table for this driver / void local; /* pointer to driver local data / char mailbox; /* mailbox name (canonicalized) / char original_mailbox; /* mailbox name (non-canonicalized) / unsigned short use; / stream use count / unsigned short sequence; / stream sequence / unsigned int inbox : 1; / stream open on an INBOX / unsigned int lock : 1; / stream lock flag / unsigned int debug : 1; / stream debug flag / unsigned int silent : 1; / don't pass events to main program / unsigned int rdonly : 1; / stream read-only flag / unsigned int anonymous : 1; / stream anonymous access flag / unsigned int scache : 1; / stream short cache flag / unsigned int halfopen : 1; / stream half-open flag / unsigned int secure : 1; / stream secure flag / unsigned int tryssl : 1; / stream tryssl flag / unsigned int mulnewsrc : 1; / stream use multiple newsrc files / unsigned int perm_seen : 1; / permanent Seen flag / unsigned int perm_deleted : 1;/ permanent Deleted flag / unsigned int perm_flagged : 1;/ permanent Flagged flag / unsigned int perm_answered :1;/ permanent Answered flag / unsigned int perm_draft : 1; / permanent Draft flag / unsigned int kwd_create : 1; / can create new keywords / unsigned int uid_nosticky : 1;/ UIDs are not preserved / unsigned int unhealthy : 1; / unhealthy protocol negotiations / unsigned int nokod : 1; / suppress kiss-of-death / unsigned int sniff : 1; / metadata only / unsigned long perm_user_flags;/ mask of permanent user flags / unsigned long gensym; / generated tag / unsigned long nmsgs; / # of associated msgs / unsigned long recent; / # of recent msgs / unsigned long uid_validity; / UID validity sequence / unsigned long uid_last; / last assigned UID / char user_flags[NUSERFLAGS]; /* pointers to user flags in bit order / unsigned long cachesize; / size of message cache / MESSAGECACHE cache; / message cache array / SORTCACHE sc; / sort cache array / unsigned long msgno; / message number of `current' message / ENVELOPE env; /* scratch buffer for envelope / BODY body; /* scratch buffer for body / SIZEDTEXT text; / scratch buffer for text / struct { char name; /* mailbox name to snarf from / unsigned long time; / last snarf time / long options; / snarf open options / } snarf; struct { / internal use only / struct { / search temporaries / STRINGLIST string; /* string(s) to search / long result; / search result / char text; /* cache of fetched text / } search; STRING string; / stringstruct return hack / } private; / reserved for use by main program / void sparep; /* spare pointer / unsigned int spare : 1; / first spare bit / unsigned int spare2 : 1; / second spare bit / unsigned int spare3 : 1; / third spare bit / unsigned int spare4 : 1; / fourth spare bit / unsigned int spare5 : 1; / fifth spare bit / unsigned int spare6 : 1; / sixth spare bit / unsigned int spare7 : 1; / seventh spare bit / unsigned int spare8 : 1; / eighth spare bit / } MAILSTREAM; / Mail I/O stream handle / typedef struct mail_stream_handle { MAILSTREAM stream; /* pointer to mail stream / unsigned short sequence; / sequence of what we expect stream to be / } MAILHANDLE; / Message overview / typedef struct mail_overview { char subject; /* message subject string / ADDRESS from; /* originator address list / char date; /* message composition date string / char message_id; /* message ID / char references; /* USENET references / struct { / may be 0 or NUL if unknown/undefined / unsigned long octets; / message octets (probably LF-newline form) / unsigned long lines; / message lines / char xref; /* cross references / } optional; } OVERVIEW; / Network access I/O stream / / Structure for network driver dispatch / #define NETDRIVER struct net_driver / Network transport I/O stream / typedef struct net_stream { void stream; /* driver's I/O stream / NETDRIVER dtb; /* network driver / } NETSTREAM; / Network transport driver dispatch / NETDRIVER { void (open) (char host,char service,unsigned long port); void (aopen) (NETMBX mb,char service,char usrbuf); char (getline) (void stream); long (getbuffer) (void stream,unsigned long size,char buffer); long (soutr) (void stream,char string); long (sout) (void stream,char string,unsigned long size); void (close) (void stream); char (host) (void stream); char (remotehost) (void stream); unsigned long (port) (void stream); char (localhost) (void stream); }; / Mailgets data identifier / typedef struct getsdata { MAILSTREAM stream; unsigned long msgno; char what; STRINGLIST stl; unsigned long first; unsigned long last; long flags; } GETS_DATA; #define INIT_GETS(md,s,m,w,f,l) \ md.stream = s, md.msgno = m, md.what = w, md.first = f, md.last = l, \ md.stl = NIL, md.flags = NIL; /* Mail delivery I/O stream / typedef struct send_stream { NETSTREAM netstream; /* network I/O stream / char host; /* SMTP service host / char reply; /* last reply string / long replycode; / last reply code / unsigned int debug : 1; / stream debug flag / unsigned int sensitive : 1; / sensitive data in progress / unsigned int loser : 1; / server is a loser / unsigned int saslcancel : 1; / SASL cancelled by protocol / union { / protocol specific / struct { / SMTP specific / unsigned int ok : 1; / supports ESMTP / struct { / service extensions / unsigned int send : 1; / supports SEND / unsigned int soml : 1; / supports SOML / unsigned int saml : 1; / supports SAML / unsigned int expn : 1; / supports EXPN / unsigned int help : 1; / supports HELP / unsigned int turn : 1; / supports TURN / unsigned int etrn : 1; / supports ETRN / unsigned int starttls:1;/ supports STARTTLS / unsigned int relay : 1; / supports relaying / unsigned int pipe : 1; / supports pipelining / unsigned int ensc : 1; / supports enhanced status codes / unsigned int bmime : 1; / supports BINARYMIME / unsigned int chunk : 1; / supports CHUNKING / } service; struct { / 8-bit MIME transport / unsigned int ok : 1; / supports 8-bit MIME / unsigned int want : 1; / want 8-bit MIME / } eightbit; struct { / delivery status notification / unsigned int ok : 1; / supports DSN / unsigned int want : 1; / want DSN / struct { / notification options / / notify on failure / unsigned int failure : 1; / notify on delay / unsigned int delay : 1; / notify on success / unsigned int success : 1; } notify; unsigned int full : 1; / return full headers / char envid; /* envelope identifier as xtext / } dsn; struct { / size declaration / unsigned int ok : 1; / supports SIZE / unsigned long limit; / maximum size supported / } size; struct { / deliverby declaration / unsigned int ok : 1; / supports DELIVERBY / unsigned long minby; / minimum by-time / } deliverby; struct { / authenticated turn / unsigned int ok : 1; / supports ATRN / char domains; /* domains / } atrn; / supported SASL authenticators / unsigned int auth : MAXAUTHENTICATORS; } esmtp; struct { / NNTP specific / unsigned int post : 1; / supports POST / struct { / NNTP extensions / unsigned int ok : 1; / supports extensions / / supports LISTGROUP / unsigned int listgroup : 1; unsigned int over : 1; / supports OVER / unsigned int hdr : 1; / supports HDR / unsigned int pat : 1; / supports PAT / / supports STARTTLS / unsigned int starttls : 1; / server has MULTIDOMAIN / unsigned int multidomain : 1; / supports AUTHINFO USER / unsigned int authuser : 1; / supported authenticators / unsigned int sasl : MAXAUTHENTICATORS; } ext; } nntp; } protocol; } SENDSTREAM; / Jacket into external interfaces / typedef long (readfn_t) (void stream,unsigned long size,char buffer); typedef char (mailgets_t) (readfn_t f,void stream,unsigned long size, GETS_DATA md); typedef char (readprogress_t) (GETS_DATA md,unsigned long octets); typedef void (mailcache_t) (MAILSTREAM stream,unsigned long msgno,long op); typedef long (mailproxycopy_t) (MAILSTREAM stream,char sequence, char mailbox,long options); typedef long (tcptimeout_t) (long overall,long last); typedef void (authchallenge_t) (void stream,unsigned long len); typedef long (authrespond_t) (void stream,char s,unsigned long size); typedef long (authcheck_t) (void); typedef long (authclient_t) (authchallenge_t challenger, authrespond_t responder,char service,NETMBX mb, void s,unsigned long trial,char user); typedef char (authresponse_t) (void challenge,unsigned long clen, unsigned long rlen); typedef char (authserver_t) (authresponse_t responder,int argc,char argv[]); typedef void (smtpverbose_t) (char buffer); typedef void (imapenvelope_t) (MAILSTREAM stream,unsigned long msgno, ENVELOPE env); typedef char (imapreferral_t) (MAILSTREAM stream,char url,long code); typedef void (overview_t) (MAILSTREAM stream,unsigned long uid,OVERVIEW ov, unsigned long msgno); typedef unsigned long (sorter_t) (MAILSTREAM stream,char charset, SEARCHPGM spg,SORTPGM pgm,long flags); typedef void (parseline_t) (ENVELOPE env,char hdr,char data,char host); typedef ADDRESS (parsephrase_t) (char phrase,char end,char host); typedef void (blocknotify_t) (int reason,void data); typedef long (kinit_t) (char host,char reason); typedef void (sendcommand_t) (MAILSTREAM stream,char cmd,long flags); typedef char (newsrcquery_t) (MAILSTREAM stream,char mulname,char name); typedef void (getacl_t) (MAILSTREAM stream,char mailbox,ACLLIST acl); typedef void (listrights_t) (MAILSTREAM stream,char mailbox,char id, char alwaysrights,STRINGLIST possiblerights); typedef void (myrights_t) (MAILSTREAM stream,char mailbox,char rights); typedef void (quota_t) (MAILSTREAM stream,char qroot,QUOTALIST qlist); typedef void (quotaroot_t) (MAILSTREAM stream,char mbx,STRINGLIST qroot); typedef void (sortresults_t) (MAILSTREAM stream,unsigned long list, unsigned long size); typedef char (userprompt_t) (void); typedef long (append_t) (MAILSTREAM stream,void data,char flags, char date,STRING *message); typedef void (copyuid_t) (MAILSTREAM stream,char mailbox, unsigned long uidvalidity,SEARCHSET sourceset, SEARCHSET destset); typedef void (appenduid_t) (char mailbox,unsigned long uidvalidity, SEARCHSET set); typedef long (dirfmttest_t) (char name); typedef long (scancontents_t) (char name,char contents,unsigned long csiz, unsigned long fsiz); typedef void (freeeltsparep_t) (void sparep); typedef void (freeenvelopesparep_t) (void *sparep); typedef void (freebodysparep_t) (void *sparep); typedef void (freestreamsparep_t) (void *sparep); typedef void (sslstart_t) (void stream,char host,unsigned long flags); typedef long (sslcertificatequery_t) (char reason,char host,char cert); typedef void (sslfailure_t) (char host,char reason,unsigned long flags); typedef void (logouthook_t) (void data); typedef char (sslclientcert_t) (void); typedef char (sslclientkey_t) (void); /* Globals / extern char body_types[]; /* defined body type strings / extern char body_encodings[]; /* defined body encoding strings / extern const char days[]; /* day name strings / extern const char months[]; /* month name strings / / Threading / / Thread node / #define THREADNODE struct thread_node THREADNODE { unsigned long num; / message number / SORTCACHE sc; /* (internal use) sortcache entry / THREADNODE branch; /* branch at this point in tree / THREADNODE next; /* next node / }; typedef void (threadresults_t) (MAILSTREAM stream,THREADNODE tree); /* Thread dispatch / #define THREADER struct threader_list THREADER { char name; /* name of threader / THREADNODE (dispatch) (MAILSTREAM stream,char charset,SEARCHPGM spg, long flags,sorter_t sorter); THREADER next; }; / Container for references threading / typedef void * container_t; /* Namespaces / #define NAMESPACE struct mail_namespace NAMESPACE { char name; /* name of this namespace / int delimiter; / hierarchy delimiter / PARAMETER param; /* namespace parameters / NAMESPACE next; /* next namespace / }; / Authentication / #define AUTHENTICATOR struct mail_authenticator AUTHENTICATOR { long flags; / authenticator flags / char name; /* name of this authenticator / authcheck_t valid; / authenticator valid on this system / authclient_t client; / client function that supports it / authserver_t server; / server function that supports it / AUTHENTICATOR next; /* next authenticator / }; / Mail driver dispatch / DRIVER { char name; /* driver name / unsigned long flags; / driver flags / DRIVER next; /* next driver / / mailbox is valid for us / DRIVER (valid) (char mailbox); /* manipulate driver parameters / void (parameters) (long function,void value); /* scan mailboxes / void (scan) (MAILSTREAM stream,char ref,char pat,char contents); /* list mailboxes / void (list) (MAILSTREAM stream,char ref,char pat); / list subscribed mailboxes / void (lsub) (MAILSTREAM stream,char ref,char pat); / subscribe to mailbox / long (subscribe) (MAILSTREAM stream,char mailbox); /* unsubscribe from mailbox / long (unsubscribe) (MAILSTREAM stream,char mailbox); /* create mailbox / long (create) (MAILSTREAM stream,char mailbox); /* delete mailbox / long (mbxdel) (MAILSTREAM stream,char mailbox); /* rename mailbox / long (mbxren) (MAILSTREAM stream,char old,char newname); / status of mailbox / long (status) (MAILSTREAM stream,char mbx,long flags); /* open mailbox / MAILSTREAM (open) (MAILSTREAM stream); /* close mailbox / void (close) (MAILSTREAM stream,long options); / fetch message "fast" attributes / void (fast) (MAILSTREAM stream,char sequence,long flags); /* fetch message flags / void (msgflags) (MAILSTREAM stream,char sequence,long flags); /* fetch message overview / long (overview) (MAILSTREAM stream,overview_t ofn); / fetch message envelopes / ENVELOPE (structure) (MAILSTREAM stream,unsigned long msgno,BODY *body, long flags); / return RFC-822 header / char (header) (MAILSTREAM stream,unsigned long msgno, unsigned long length,long flags); / return RFC-822 text / long (text) (MAILSTREAM stream,unsigned long msgno,STRING bs,long flags); /* load cache / long (msgdata) (MAILSTREAM stream,unsigned long msgno,char section, unsigned long first,unsigned long last,STRINGLIST lines, long flags); / return UID for message / unsigned long (uid) (MAILSTREAM stream,unsigned long msgno); / return message number from UID / unsigned long (msgno) (MAILSTREAM stream,unsigned long uid); / modify flags / void (flag) (MAILSTREAM stream,char sequence,char flag,long flags); / per-message modify flags / void (flagmsg) (MAILSTREAM stream,MESSAGECACHE elt); /* search for message based on criteria / long (search) (MAILSTREAM stream,char charset,SEARCHPGM pgm,long flags); / sort messages / unsigned long (sort) (MAILSTREAM stream,char charset,SEARCHPGM spg, SORTPGM pgm,long flags); / thread messages / THREADNODE (thread) (MAILSTREAM stream,char type,char charset, SEARCHPGM spg,long flag); / ping mailbox to see if still alive / long (ping) (MAILSTREAM stream); / check for new messages / void (check) (MAILSTREAM stream); / expunge deleted messages / long (expunge) (MAILSTREAM stream,char sequence,long options); /* copy messages to another mailbox / long (copy) (MAILSTREAM stream,char sequence,char mailbox,long options); / append string message to mailbox / long (append) (MAILSTREAM stream,char mailbox,append_t af,void data); / garbage collect stream / void (gc) (MAILSTREAM stream,long gcflags); }; #include "linkage.h" / Compatibility support names for old interfaces / #define GET_TRYALTFIRST GET_TRYSSLFIRST #define SET_TRYALTFIRST SET_TRYSSLFIRST #define GET_IMAPTRYALT GET_IMAPTRYSSL #define SET_IMAPTRYALT SET_IMAPTRYSSL #define OP_TRYALT OP_TRYSSL #define altflag sslflag #define mail_close(stream) \ mail_close_full (stream,NIL) #define mail_fetchfast(stream,sequence) \ mail_fetch_fast (stream,sequence,NIL) #define mail_fetchfast_full mail_fetch_fast #define mail_fetchflags(stream,sequence) \ mail_fetch_flags (stream,sequence,NIL) #define mail_fetchflags_full mail_fetch_flags #define mail_fetchenvelope(stream,msgno) \ mail_fetch_structure (stream,msgno,NIL,NIL) #define mail_fetchstructure(stream,msgno,body) \ mail_fetch_structure (stream,msgno,body,NIL) #define mail_fetchstructure_full mail_fetch_structure #define mail_fetchheader(stream,msgno) \ mail_fetch_header (stream,msgno,NIL,NIL,NIL,FT_PEEK) #define mail_fetchheader_full(stream,msgno,lines,len,flags) \ mail_fetch_header (stream,msgno,NIL,lines,len,FT_PEEK \| (flags)) #define mail_fetchtext(stream,msgno) \ mail_fetch_text (stream,msgno,NIL,NIL,NIL) #define mail_fetchtext_full(stream,msgno,length,flags) \ mail_fetch_text (stream,msgno,NIL,length,flags) #define mail_fetchbody(stream,msgno,section,length) \ mail_fetch_body (stream,msgno,section,length,NIL) #define mail_fetchbody_full mail_fetch_body #define mail_setflag(stream,sequence,flag) \ mail_flag (stream,sequence,flag,ST_SET) #define mail_setflag_full(stream,sequence,flag,flags) \ mail_flag (stream,sequence,flag,ST_SET \| (flags)) #define mail_clearflag(stream,sequence,flag) \ mail_flag (stream,sequence,flag,NIL) #define mail_clearflag_full mail_flag #define mail_search(stream,criteria) \ mail_search_full (stream,NIL,mail_criteria (criteria),SE_FREE); #define mail_expunge(stream) \ mail_expunge_full (stream,NIL,NIL) #define mail_copy(stream,sequence,mailbox) \ mail_copy_full (stream,sequence,mailbox,NIL) #define mail_move(stream,sequence,mailbox) \ mail_copy_full (stream,sequence,mailbox,CP_MOVE) #define mail_append(stream,mailbox,message) \ mail_append_full (stream,mailbox,NIL,NIL,message) / Interfaces for SVR4 locking brain-damage workaround / / Driver dispatching / #define SAFE_DELETE(dtb,stream,mailbox) (dtb->mbxdel) (stream,mailbox) #define SAFE_RENAME(dtb,stream,old,newname) (dtb->mbxren) (stream,old,newname) #define SAFE_STATUS(dtb,stream,mbx,flags) (dtb->status) (stream,mbx,flags) #define SAFE_COPY(dtb,stream,sequence,mailbox,options) \ (dtb->copy) (stream,sequence,mailbox,options) #define SAFE_APPEND(dtb,stream,mailbox,af,data) \ (dtb->append) (stream,mailbox,af,data) #define SAFE_SCAN_CONTENTS(dtb,name,contents,csiz,fsiz) \ scan_contents (dtb,name,contents,csiz,fsiz) /* Driver callbacks / #define MM_EXISTS mm_exists #define MM_EXPUNGED mm_expunged #define MM_FLAGS mm_flags #define MM_NOTIFY mm_notify #define MM_STATUS mm_status #define MM_LOG mm_log #define MM_CRITICAL mm_critical #define MM_NOCRITICAL mm_nocritical #define MM_DISKERROR mm_diskerror #define MM_FATAL mm_fatal #define MM_APPEND(af) (af) /* Function prototypes / void mm_searched (MAILSTREAM stream,unsigned long number); void mm_exists (MAILSTREAM stream,unsigned long number); void mm_expunged (MAILSTREAM stream,unsigned long number); void mm_flags (MAILSTREAM stream,unsigned long number); void mm_notify (MAILSTREAM stream,char string,long errflg); void mm_list (MAILSTREAM stream,int delimiter,char name,long attributes); void mm_lsub (MAILSTREAM stream,int delimiter,char name,long attributes); void mm_status (MAILSTREAM stream,char mailbox,MAILSTATUS status); void mm_log (char string,long errflg); void mm_dlog (char string); void mm_login (NETMBX mb,char user,char pwd,long trial); void mm_critical (MAILSTREAM stream); void mm_nocritical (MAILSTREAM stream); long mm_diskerror (MAILSTREAM stream,long errcode,long serious); void mm_fatal (char string); void mm_cache (MAILSTREAM stream,unsigned long msgno,long op); extern STRINGDRIVER mail_string; void mail_versioncheck (char version); void mail_link (DRIVER driver); void mail_parameters (MAILSTREAM stream,long function,void value); DRIVER mail_valid (MAILSTREAM stream,char mailbox,char purpose); DRIVER mail_valid_net (char name,DRIVER drv,char host,char mailbox); long mail_valid_net_parse (char name,NETMBX mb); long mail_valid_net_parse_work (char name,NETMBX mb,char service); void mail_scan (MAILSTREAM stream,char ref,char pat,char contents); void mail_list (MAILSTREAM stream,char ref,char pat); void mail_lsub (MAILSTREAM stream,char ref,char pat); long mail_subscribe (MAILSTREAM stream,char mailbox); long mail_unsubscribe (MAILSTREAM stream,char mailbox); long mail_create (MAILSTREAM stream,char mailbox); long mail_delete (MAILSTREAM stream,char mailbox); long mail_rename (MAILSTREAM stream,char old,char newname); char mail_utf7_valid (char mailbox); long mail_status (MAILSTREAM stream,char mbx,long flags); long mail_status_default (MAILSTREAM stream,char mbx,long flags); MAILSTREAM mail_open (MAILSTREAM stream,char name,long options); MAILSTREAM mail_open_work (DRIVER d,MAILSTREAM stream,char name, long options); MAILSTREAM mail_close_full (MAILSTREAM stream,long options); MAILHANDLE mail_makehandle (MAILSTREAM stream); void mail_free_handle (MAILHANDLE *handle); MAILSTREAM mail_stream (MAILHANDLE handle); void mail_fetch_fast (MAILSTREAM stream,char sequence,long flags); void mail_fetch_flags (MAILSTREAM stream,char sequence,long flags); void mail_fetch_overview (MAILSTREAM stream,char sequence,overview_t ofn); void mail_fetch_overview_sequence (MAILSTREAM stream,char sequence, overview_t ofn); void mail_fetch_overview_default (MAILSTREAM stream,overview_t ofn); ENVELOPE mail_fetch_structure (MAILSTREAM stream,unsigned long msgno, BODY *body,long flags); char mail_fetch_message (MAILSTREAM stream,unsigned long msgno, unsigned long len,long flags); char mail_fetch_header (MAILSTREAM stream,unsigned long msgno,char section, STRINGLIST lines,unsigned long len,long flags); char mail_fetch_text (MAILSTREAM stream,unsigned long msgno,char section, unsigned long len,long flags); char mail_fetch_mime (MAILSTREAM stream,unsigned long msgno,char section, unsigned long len,long flags); char mail_fetch_body (MAILSTREAM stream,unsigned long msgno,char section, unsigned long len,long flags); long mail_partial_text (MAILSTREAM stream,unsigned long msgno,char section, unsigned long first,unsigned long last,long flags); long mail_partial_body (MAILSTREAM stream,unsigned long msgno,char section, unsigned long first,unsigned long last,long flags); char mail_fetch_text_return (GETS_DATA md,SIZEDTEXT t,unsigned long len); char mail_fetch_string_return (GETS_DATA md,STRING bs,unsigned long i, unsigned long len,long flags); long mail_read (void stream,unsigned long size,char buffer); unsigned long mail_uid (MAILSTREAM stream,unsigned long msgno); unsigned long mail_msgno (MAILSTREAM stream,unsigned long uid); void mail_fetchfrom (char s,MAILSTREAM stream,unsigned long msgno, long length); void mail_fetchsubject (char s,MAILSTREAM stream,unsigned long msgno, long length); MESSAGECACHE mail_elt (MAILSTREAM stream,unsigned long msgno); void mail_flag (MAILSTREAM stream,char sequence,char flag,long flags); long mail_search_full (MAILSTREAM stream,char charset,SEARCHPGM pgm, long flags); long mail_search_default (MAILSTREAM stream,char charset,SEARCHPGM pgm, long flags); long mail_ping (MAILSTREAM stream); void mail_check (MAILSTREAM stream); long mail_expunge_full (MAILSTREAM stream,char sequence,long options); long mail_copy_full (MAILSTREAM stream,char sequence,char mailbox, long options); long mail_append_full (MAILSTREAM stream,char mailbox,char flags,char date, STRING message); long mail_append_multiple (MAILSTREAM stream,char mailbox,append_t af, void data); void mail_gc (MAILSTREAM stream,long gcflags); void mail_gc_msg (MESSAGE msg,long gcflags); void mail_gc_body (BODY body); BODY mail_body (MAILSTREAM stream,unsigned long msgno, unsigned char section); char mail_date (char string,MESSAGECACHE elt); char mail_cdate (char string,MESSAGECACHE elt); long mail_parse_date (MESSAGECACHE elt,unsigned char string); void mail_exists (MAILSTREAM stream,unsigned long nmsgs); void mail_recent (MAILSTREAM stream,unsigned long recent); void mail_expunged (MAILSTREAM stream,unsigned long msgno); void mail_lock (MAILSTREAM stream); void mail_unlock (MAILSTREAM stream); void mail_debug (MAILSTREAM stream); void mail_nodebug (MAILSTREAM stream); void mail_dlog (char string,long flag); long mail_match_lines (STRINGLIST lines,STRINGLIST msglines,long flags); unsigned long mail_filter (char text,unsigned long len,STRINGLIST lines, long flags); long mail_search_msg (MAILSTREAM stream,unsigned long msgno,char section, SEARCHPGM pgm); long mail_search_header_text (char s,STRINGLIST st); long mail_search_header (SIZEDTEXT hdr,STRINGLIST st); long mail_search_text (MAILSTREAM stream,unsigned long msgno,char section, STRINGLIST st,long flags); long mail_search_body (MAILSTREAM stream,unsigned long msgno,BODY body, char prefix,unsigned long section,long flags); long mail_search_string (SIZEDTEXT s,char charset,STRINGLIST *st); long mail_search_string_work (SIZEDTEXT s,STRINGLIST *st); long mail_search_keyword (MAILSTREAM stream,MESSAGECACHE elt,STRINGLIST st, long flag); long mail_search_addr (ADDRESS adr,STRINGLIST st); char mail_search_gets (readfn_t f,void stream,unsigned long size, GETS_DATA md); SEARCHPGM mail_criteria (char criteria); int mail_criteria_date (unsigned short date,char r); int mail_criteria_string (STRINGLIST s,char *r); unsigned short mail_shortdate (unsigned int year,unsigned int month, unsigned int day); SEARCHSET mail_parse_set (char s,char ret); SEARCHSET mail_append_set (SEARCHSET set,unsigned long msgno); unsigned long mail_sort (MAILSTREAM stream,char charset,SEARCHPGM spg, SORTPGM pgm,long flags); unsigned long mail_sort_cache (MAILSTREAM stream,SORTPGM pgm,SORTCACHE sc, long flags); unsigned long mail_sort_msgs (MAILSTREAM stream,char charset,SEARCHPGM spg, SORTPGM pgm,long flags); SORTCACHE *mail_sort_loadcache (MAILSTREAM stream,SORTPGM pgm); unsigned int mail_strip_subject (char t,char *ret); char mail_strip_subject_wsp (char s); char mail_strip_subject_blob (char s); int mail_sort_compare (const void a1,const void a2); unsigned long mail_longdate (MESSAGECACHE elt); THREADNODE mail_thread (MAILSTREAM stream,char type,char charset, SEARCHPGM spg,long flags); THREADNODE mail_thread_msgs (MAILSTREAM stream,char type,char charset, SEARCHPGM spg,long flags,sorter_t sorter); THREADNODE mail_thread_orderedsubject (MAILSTREAM stream,char charset, SEARCHPGM spg,long flags, sorter_t sorter); THREADNODE mail_thread_references (MAILSTREAM stream,char charset, SEARCHPGM spg,long flags, sorter_t sorter); void mail_thread_loadcache (MAILSTREAM stream,unsigned long uid,OVERVIEW ov, unsigned long msgno); char mail_thread_parse_msgid (char s,char *ss); STRINGLIST mail_thread_parse_references (char s,long flag); long mail_thread_check_child (container_t mother,container_t daughter); container_t mail_thread_prune_dummy (container_t msg,container_t ane); container_t mail_thread_prune_dummy_work (container_t msg,container_t ane); THREADNODE mail_thread_c2node (MAILSTREAM stream,container_t con,long flags); THREADNODE mail_thread_sort (THREADNODE thr,THREADNODE tc); int mail_thread_compare_date (const void a1,const void a2); long mail_sequence (MAILSTREAM stream,unsigned char sequence); long mail_uid_sequence (MAILSTREAM stream,unsigned char sequence); long mail_parse_flags (MAILSTREAM stream,char flag,unsigned long uf); long mail_usable_network_stream (MAILSTREAM stream,char name); MESSAGECACHE mail_new_cache_elt (unsigned long msgno); ENVELOPE mail_newenvelope (void); ADDRESS mail_newaddr (void); BODY mail_newbody (void); BODY mail_initbody (BODY body); PARAMETER mail_newbody_parameter (void); PART mail_newbody_part (void); MESSAGE mail_newmsg (void); STRINGLIST mail_newstringlist (void); SEARCHPGM mail_newsearchpgm (void); SEARCHHEADER mail_newsearchheader (char line,char text); SEARCHSET mail_newsearchset (void); SEARCHOR mail_newsearchor (void); SEARCHPGMLIST mail_newsearchpgmlist (void); SORTPGM mail_newsortpgm (void); THREADNODE mail_newthreadnode (SORTCACHE sc); ACLLIST mail_newacllist (void); QUOTALIST mail_newquotalist (void); void mail_free_body (BODY *body); void mail_free_body_data (BODY body); void mail_free_body_parameter (PARAMETER parameter); void mail_free_body_part (PART part); void mail_free_cache (MAILSTREAM stream); void mail_free_elt (MESSAGECACHE elt); void mail_free_envelope (ENVELOPE env); void mail_free_address (ADDRESS address); void mail_free_stringlist (STRINGLIST string); void mail_free_searchpgm (SEARCHPGM pgm); void mail_free_searchheader (SEARCHHEADER hdr); void mail_free_searchset (SEARCHSET set); void mail_free_searchor (SEARCHOR orl); void mail_free_searchpgmlist (SEARCHPGMLIST pgl); void mail_free_namespace (NAMESPACE n); void mail_free_sortpgm (SORTPGM pgm); void mail_free_threadnode (THREADNODE thr); void mail_free_acllist (ACLLIST al); void mail_free_quotalist (QUOTALIST ql); void auth_link (AUTHENTICATOR auth); char mail_auth (char mechanism,authresponse_t resp,int argc,char argv[]); AUTHENTICATOR mail_lookup_auth (unsigned long i); unsigned int mail_lookup_auth_name (char mechanism,long flags); NETSTREAM net_open (NETMBX mb,NETDRIVER dv,unsigned long port, NETDRIVER ssld,char ssls,unsigned long sslp); NETSTREAM net_open_work (NETDRIVER dv,char host,char service, unsigned long port,unsigned long portoverride, unsigned long flags); NETSTREAM net_aopen (NETDRIVER dv,NETMBX mb,char service,char usrbuf); char net_getline (NETSTREAM stream); / stream must be void* for use as readfn_t / long net_getbuffer (void stream,unsigned long size,char buffer); long net_soutr (NETSTREAM stream,char string); long net_sout (NETSTREAM stream,char string,unsigned long size); void net_close (NETSTREAM stream); char net_host (NETSTREAM stream); char net_remotehost (NETSTREAM stream); unsigned long net_port (NETSTREAM stream); char net_localhost (NETSTREAM stream); long sm_subscribe (char mailbox); long sm_unsubscribe (char mailbox); char sm_read (void *sdb); void ssl_onceonlyinit (void); char ssl_start_tls (char s); void ssl_server_init (char server); /* Server I/O functions / int PBIN (void); char PSIN (char s,int n); long PSINR (char s,unsigned long n); int PBOUT (int c); long INWAIT (long seconds); int PSOUT (char s); int PSOUTR (SIZEDTEXT s); int PFLUSH (void); Back

Edit File : mail.h | Size : 66.80 KB

/* ========================================================================
 * Copyright 1988-2008 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * 
 * ========================================================================
 */

/*
 * Program:	Mailbox Access routines
 *
 * Author:	Mark Crispin
 *		UW Technology
 *		University of Washington
 *		Seattle, WA  98195
 *		Internet: MRC@Washington.EDU
 *
 * Date:	22 November 1989
 * Last Edited:	22 July 2011
 */

/* The Version */

#define CCLIENTVERSION "2007f"

/* Build parameters */

#define CACHEINCREMENT 250	/* cache growth increments */
#define MAILTMPLEN 1024		/* size of a temporary buffer */
#define SENDBUFLEN 16385	/* size of temporary sending buffer, also
				 * used for SMTP commands and NETMBX generation
				 * buffer so shouldn't be made smaller than
				 * MAILTMPLEN.  Note that there's a guard byte,
				 * so this is actually len+1. */
#define MAXAUTHENTICATORS 8	/* maximum number of SASL authenticators */
				/* maximum number of messages */
#define MAXMESSAGES (unsigned long) 1000000
#define MAXLOGINTRIALS 3	/* maximum number of client login attempts */
#define MAXWILDCARDS 10		/* maximum wildcards allowed in LIST/LSUB */

/* These can't be changed without changing code */

#define NUSERFLAGS 30		/* maximum number of user flags */
#define MAXUSERFLAG 50		/* maximum length of a user flag */
#define BASEYEAR 1970		/* the year time began on Unix DON'T CHANGE */
				/* default for unqualified addresses */
#define BADHOST ".MISSING-HOST-NAME."
				/* default for syntax errors in addresses */
#define ERRHOST ".SYNTAX-ERROR."

/* Coddle certain compilers' 6-character symbol limitation */

#ifdef __COMPILER_KCC__
#include "shortsym.h"
#endif

/* Function status code */

#define NIL 0			/* convenient name */
#define T 1			/* opposite of NIL */
#define LONGT (long) 1		/* long T to pacify some compilers */
#define VOIDT (void *) ""	/* void T ditto */

/* Global and Driver Parameters */

/* 0xx: driver and authenticator flags */
#define ENABLE_DRIVER (long) 1
#define DISABLE_DRIVER (long) 2
#define ENABLE_AUTHENTICATOR (long) 3
#define DISABLE_AUTHENTICATOR (long) 4
#define ENABLE_DEBUG (long) 5
#define DISABLE_DEBUG (long) 6
#define HIDE_AUTHENTICATOR (long) 7
#define UNHIDE_AUTHENTICATOR (long) 8
	/* 1xx: c-client globals */
#define GET_DRIVERS (long) 101
#define SET_DRIVERS (long) 102
#define GET_GETS (long) 103
#define SET_GETS (long) 104
#define GET_CACHE (long) 105
#define SET_CACHE (long) 106
#define GET_SMTPVERBOSE (long) 107
#define SET_SMTPVERBOSE (long) 108
#define GET_RFC822OUTPUT (long) 109
#define SET_RFC822OUTPUT (long) 110
#define GET_READPROGRESS (long) 111
#define SET_READPROGRESS (long) 112
#define GET_THREADERS (long) 113
#define SET_THREADERS (long) 114
#define GET_NAMESPACE (long) 115
#define SET_NAMESPACE (long) 116
#define GET_MAILPROXYCOPY (long) 117
#define SET_MAILPROXYCOPY (long) 118
#define GET_SERVICENAME (long) 119
#define SET_SERVICENAME (long) 120
#define GET_DRIVER (long) 121
#define SET_DRIVER (long) 122
#define GET_EXPUNGEATPING (long) 123
#define SET_EXPUNGEATPING (long) 124
#define GET_PARSEPHRASE (long) 125
#define SET_PARSEPHRASE (long) 126
#define GET_SSLDRIVER (long) 127
#define SET_SSLDRIVER (long) 128
#define GET_TRYSSLFIRST (long) 129
#define SET_TRYSSLFIRST (long) 130
#define GET_BLOCKNOTIFY (long) 131
#define SET_BLOCKNOTIFY (long) 132
#define GET_SORTRESULTS (long) 133
#define SET_SORTRESULTS (long) 134
#define GET_THREADRESULTS (long) 135
#define SET_THREADRESULTS (long) 136
#define GET_PARSELINE (long) 137
#define SET_PARSELINE (long) 138
#define GET_NEWSRCQUERY (long) 139
#define SET_NEWSRCQUERY (long) 140
#define GET_FREEENVELOPESPAREP (long) 141
#define SET_FREEENVELOPESPAREP (long) 142
#define GET_FREEELTSPAREP (long) 143
#define SET_FREEELTSPAREP (long) 144
#define GET_SSLSTART (long) 145
#define SET_SSLSTART (long) 146
#define GET_DEBUGSENSITIVE (long) 147
#define SET_DEBUGSENSITIVE (long) 148
#define GET_TCPDEBUG (long) 149
#define SET_TCPDEBUG (long) 150
#define GET_FREESTREAMSPAREP (long) 151
#define SET_FREESTREAMSPAREP (long) 152
#define GET_FREEBODYSPAREP (long) 153
#define SET_FREEBODYSPAREP (long) 154
#define GET_COPYUID (long) 155
#define SET_COPYUID (long) 156
#define GET_APPENDUID (long) 157
#define SET_APPENDUID (long) 158
#define GET_RFC822OUTPUTFULL (long) 159
#define SET_RFC822OUTPUTFULL (long) 160
#define GET_BLOCKENVINIT (long) 161
#define SET_BLOCKENVINIT (long) 162

/* 2xx: environment */
#define GET_USERNAME (long) 201
#define SET_USERNAME (long) 202
#define GET_HOMEDIR (long) 203
#define SET_HOMEDIR (long) 204
#define GET_LOCALHOST (long) 205
#define SET_LOCALHOST (long) 206
#define GET_SYSINBOX (long) 207
#define SET_SYSINBOX (long) 208
#define GET_USERPROMPT (long) 209
#define SET_USERPROMPT (long) 210
#define GET_DISABLEPLAINTEXT (long) 211
#define SET_DISABLEPLAINTEXT (long) 212
#define GET_CHROOTSERVER (long) 213
#define SET_CHROOTSERVER (long) 214
#define GET_ADVERTISETHEWORLD (long) 215
#define SET_ADVERTISETHEWORLD (long) 216
#define GET_DISABLEAUTOSHAREDNS (long) 217
#define SET_DISABLEAUTOSHAREDNS (long) 218
#define GET_MAILSUBDIR 219
#define SET_MAILSUBDIR 220
#define GET_DISABLE822TZTEXT 221
#define SET_DISABLE822TZTEXT 222
#define GET_LIMITEDADVERTISE (long) 223
#define SET_LIMITEDADVERTISE (long) 224
#define GET_LOGOUTHOOK (long) 225
#define SET_LOGOUTHOOK (long) 226
#define GET_LOGOUTDATA (long) 227
#define SET_LOGOUTDATA (long) 228
#define GET_EXTERNALAUTHID (long) 229
#define SET_EXTERNALAUTHID (long) 230
#define GET_SSLCAPATH (long) 231
#define SET_SSLCAPATH (long) 232

/* 3xx: TCP/IP */
#define GET_OPENTIMEOUT (long) 300
#define SET_OPENTIMEOUT (long) 301
#define GET_READTIMEOUT (long) 302
#define SET_READTIMEOUT (long) 303
#define GET_WRITETIMEOUT (long) 304
#define SET_WRITETIMEOUT (long) 305
#define GET_CLOSETIMEOUT (long) 306
#define SET_CLOSETIMEOUT (long) 307
#define GET_TIMEOUT (long) 308
#define SET_TIMEOUT (long) 309
#define GET_RSHTIMEOUT (long) 310
#define SET_RSHTIMEOUT (long) 311
#define GET_ALLOWREVERSEDNS (long) 312
#define SET_ALLOWREVERSEDNS (long) 313
#define GET_RSHCOMMAND (long) 314
#define SET_RSHCOMMAND (long) 315
#define GET_RSHPATH (long) 316
#define SET_RSHPATH (long) 317
#define GET_SSHTIMEOUT (long) 318
#define SET_SSHTIMEOUT (long) 319
#define GET_SSHCOMMAND (long) 320
#define SET_SSHCOMMAND (long) 321
#define GET_SSHPATH (long) 322
#define SET_SSHPATH (long) 323
#define GET_SSLCERTIFICATEQUERY (long) 324
#define SET_SSLCERTIFICATEQUERY (long) 325
#define GET_SSLFAILURE (long) 326
#define SET_SSLFAILURE (long) 327
#define GET_NEWSRCCANONHOST (long) 328
#define SET_NEWSRCCANONHOST (long) 329
#define GET_KINIT (long) 330
#define SET_KINIT (long) 331
#define GET_SSLCLIENTCERT (long) 332
#define SET_SSLCLIENTCERT (long) 333
#define GET_SSLCLIENTKEY (long) 334
#define SET_SSLCLIENTKEY (long) 335
#define GET_KERBEROS_CP_SVR_NAME (long) 336
#define SET_KERBEROS_CP_SVR_NAME (long) 337

/* 4xx: network drivers */
#define GET_MAXLOGINTRIALS (long) 400
#define SET_MAXLOGINTRIALS (long) 401
#define GET_LOOKAHEAD (long) 402
#define SET_LOOKAHEAD (long) 403
#define GET_IMAPPORT (long) 404
#define SET_IMAPPORT (long) 405
#define GET_PREFETCH (long) 406
#define SET_PREFETCH (long) 407
#define GET_CLOSEONERROR (long) 408
#define SET_CLOSEONERROR (long) 409
#define GET_POP3PORT (long) 410
#define SET_POP3PORT (long) 411
#define GET_UIDLOOKAHEAD (long) 412
#define SET_UIDLOOKAHEAD (long) 413
#define GET_NNTPPORT (long) 414
#define SET_NNTPPORT (long) 415
#define GET_IMAPENVELOPE (long) 416
#define SET_IMAPENVELOPE (long) 417
#define GET_IMAPREFERRAL (long) 418
#define SET_IMAPREFERRAL (long) 419
#define GET_SSLIMAPPORT (long) 420
#define SET_SSLIMAPPORT (long) 421
#define GET_SSLPOPPORT (long) 422
#define SET_SSLPOPPORT (long) 423
#define GET_SSLNNTPPORT (long) 424
#define SET_SSLNNTPPORT (long) 425
#define GET_SSLSMTPPORT (long) 426
#define SET_SSLSMTPPORT (long) 427
#define GET_SMTPPORT (long) 428
#define SET_SMTPPORT (long) 429
#define GET_IMAPEXTRAHEADERS (long) 430
#define SET_IMAPEXTRAHEADERS (long) 431
#define GET_ACL (long) 432
#define SET_ACL (long) 433
#define GET_LISTRIGHTS (long) 434
#define SET_LISTRIGHTS (long) 435
#define GET_MYRIGHTS (long) 436
#define SET_MYRIGHTS (long) 437
#define GET_QUOTA (long) 438
#define SET_QUOTA (long) 439
#define GET_QUOTAROOT (long) 440
#define SET_QUOTAROOT (long) 441
#define GET_IMAPTRYSSL (long) 442
#define SET_IMAPTRYSSL (long) 443
#define GET_FETCHLOOKAHEAD (long) 444
#define SET_FETCHLOOKAHEAD (long) 445
#define GET_NNTPRANGE (long) 446
#define SET_NNTPRANGE (long) 447
#define GET_NNTPHIDEPATH (long) 448
#define SET_NNTPHIDEPATH (long) 449
#define GET_SENDCOMMAND (long) 450
#define SET_SENDCOMMAND (long) 451
#define GET_IDLETIMEOUT (long) 452
#define SET_IDLETIMEOUT (long) 453
#define GET_FETCHLOOKAHEADLIMIT (long) 454
#define SET_FETCHLOOKAHEADLIMIT (long) 455

/* 5xx: local file drivers */
#define GET_MBXPROTECTION (long) 500
#define SET_MBXPROTECTION (long) 501
#define GET_DIRPROTECTION (long) 502
#define SET_DIRPROTECTION (long) 503
#define GET_LOCKPROTECTION (long) 504
#define SET_LOCKPROTECTION (long) 505
#define GET_FROMWIDGET (long) 506
#define SET_FROMWIDGET (long) 507
#define GET_NEWSACTIVE (long) 508
#define SET_NEWSACTIVE (long) 509
#define GET_NEWSSPOOL (long) 510
#define SET_NEWSSPOOL (long) 511
#define GET_NEWSRC (long) 512
#define SET_NEWSRC (long) 513
#define GET_EXTENSION (long) 514
#define SET_EXTENSION (long) 515
#define GET_DISABLEFCNTLLOCK (long) 516
#define SET_DISABLEFCNTLLOCK (long) 517
#define GET_LOCKEACCESERROR (long) 518
#define SET_LOCKEACCESERROR (long) 519
#define GET_LISTMAXLEVEL (long) 520
#define SET_LISTMAXLEVEL (long) 521
#define GET_ANONYMOUSHOME (long) 522
#define SET_ANONYMOUSHOME (long) 523
#define GET_FTPHOME (long) 524
#define SET_FTPHOME (long) 525
#define GET_PUBLICHOME (long) 526
#define SET_PUBLICHOME (long) 527
#define GET_SHAREDHOME (long) 528
#define SET_SHAREDHOME (long) 529
#define GET_MHPROFILE (long) 530
#define SET_MHPROFILE (long) 531
#define GET_MHPATH (long) 532
#define SET_MHPATH (long) 533
#define GET_ONETIMEEXPUNGEATPING (long) 534
#define SET_ONETIMEEXPUNGEATPING (long) 535
#define GET_USERHASNOLIFE (long) 536
#define SET_USERHASNOLIFE (long) 537
#define GET_FTPPROTECTION (long) 538
#define SET_FTPPROTECTION (long) 539
#define GET_PUBLICPROTECTION (long) 540
#define SET_PUBLICPROTECTION (long) 541
#define GET_SHAREDPROTECTION (long) 542
#define SET_SHAREDPROTECTION (long) 543
#define GET_LOCKTIMEOUT (long) 544
#define SET_LOCKTIMEOUT (long) 545
#define GET_NOTIMEZONES (long) 546
#define SET_NOTIMEZONES (long) 547
#define GET_HIDEDOTFILES (long) 548
#define SET_HIDEDOTFILES (long) 549
#define GET_FTPDIRPROTECTION (long) 550
#define SET_FTPDIRPROTECTION (long) 551
#define GET_PUBLICDIRPROTECTION (long) 552
#define SET_PUBLICDIRPROTECTION (long) 553
#define GET_SHAREDDIRPROTECTION (long) 554
#define SET_SHAREDDIRPROTECTION (long) 555
#define GET_TRUSTDNS (long) 556
#define SET_TRUSTDNS (long) 557
#define GET_SASLUSESPTRNAME (long) 558
#define SET_SASLUSESPTRNAME (long) 559
#define GET_NETFSSTATBUG (long) 560
#define SET_NETFSSTATBUG (long) 561
#define GET_SNARFMAILBOXNAME (long) 562
#define SET_SNARFMAILBOXNAME (long) 563
#define GET_SNARFINTERVAL (long) 564
#define SET_SNARFINTERVAL (long) 565
#define GET_SNARFPRESERVE (long) 566
#define SET_SNARFPRESERVE (long) 567
#define GET_INBOXPATH (long) 568
#define SET_INBOXPATH (long) 569
#define GET_DIRFMTTEST (long) 570
#define SET_DIRFMTTEST (long) 571
#define GET_SCANCONTENTS (long) 572
#define SET_SCANCONTENTS (long) 573
#define GET_MHALLOWINBOX (long) 574
#define SET_MHALLOWINBOX (long) 575

/* Driver flags */

#define DR_DISABLE (long) 0x1	/* driver is disabled */
#define DR_LOCAL (long) 0x2	/* local file driver */
#define DR_MAIL (long) 0x4	/* supports mail */
#define DR_NEWS (long) 0x8	/* supports news */
#define DR_READONLY (long) 0x10	/* driver only allows readonly access */
#define DR_NOFAST (long) 0x20	/* "fast" data is slow (whole msg fetch) */
#define DR_NAMESPACE (long) 0x40/* driver has a special namespace */
#define DR_LOWMEM (long) 0x80	/* low amounts of memory available */
#define DR_LOCKING (long) 0x100	/* driver does locking */
#define DR_CRLF (long) 0x200	/* driver internal form uses CRLF newlines */
#define DR_NOSTICKY (long) 0x400/* driver does not support sticky UIDs */
#define DR_RECYCLE (long) 0x800	/* driver does stream recycling */
#define DR_XPOINT (long) 0x1000	/* needs to be checkpointed */
				/* driver has no real internal date */
#define DR_NOINTDATE (long) 0x2000
				/* driver does not announce new mail */
#define DR_NONEWMAIL (long) 0x4000
				/* driver does not announce new mail when RO */
#define DR_NONEWMAILRONLY (long) 0x8000
				/* driver can be halfopen */
#define DR_HALFOPEN (long) 0x10000
#define DR_DIRFMT (long) 0x20000/* driver is a directory-format */
#define DR_MODSEQ (long) 0x40000/* driver supports modseqs */

/* Cache management function codes */

#define CH_INIT (long) 10	/* initialize cache */
#define CH_SIZE (long) 11	/* (re-)size the cache */
#define CH_MAKEELT (long) 30	/* return elt, make if needed */
#define CH_ELT (long) 31	/* return elt if exists */
#define CH_SORTCACHE (long) 35	/* return sortcache entry, make if needed */
#define CH_FREE (long) 40	/* free space used by elt */
				/* free space used by sortcache */
#define CH_FREESORTCACHE (long) 43
#define CH_EXPUNGE (long) 45	/* delete elt pointer from list */

/* Mailbox open options
 * For compatibility with the past, OP_DEBUG must always be 1.
 */

#define OP_DEBUG (long) 0x1	/* debug protocol negotiations */
#define OP_READONLY (long) 0x2	/* read-only open */
#define OP_ANONYMOUS (long) 0x4	/* anonymous open of newsgroup */
#define OP_SHORTCACHE (long) 0x8/* short (elt-only) caching */
#define OP_SILENT (long) 0x10	/* don't pass up events (internal use) */
#define OP_PROTOTYPE (long) 0x20/* return driver prototype */
#define OP_HALFOPEN (long) 0x40	/* half-open (IMAP connect but no select) */
#define OP_EXPUNGE (long) 0x80	/* silently expunge recycle stream */
#define OP_SECURE (long) 0x100	/* don't do non-secure authentication */
#define OP_TRYSSL (long) 0x200	/* try SSL first */
				/* use multiple newsrc files */
#define OP_MULNEWSRC (long) 0x400
#define OP_NOKOD (long) 0x800	/* suppress kiss-of-death */
#define OP_SNIFF (long) 0x1000	/* metadata only open */
				/* reserved for application use */
#define OP_RESERVED (unsigned long) 0xff000000

/* Net open options */

/* no error messages */
#define NET_SILENT ((unsigned long) 0x80000000)
				/* no validation of SSL certificates */
#define NET_NOVALIDATECERT ((unsigned long) 0x40000000)
				/* no open timeout */
#define NET_NOOPENTIMEOUT ((unsigned long) 0x20000000)
				/* TLS not SSL */
#define NET_TLSCLIENT ((unsigned long) 0x10000000)
				/* try SSL mode */
#define NET_TRYSSL ((unsigned long) 0x8000000)

/* Close options */

#define CL_EXPUNGE (long) 1	/* expunge silently */

/* Fetch options */

#define FT_UID (long) 0x1	/* argument is a UID */
#define FT_PEEK (long) 0x2	/* peek at data */
#define FT_NOT (long) 0x4	/* NOT flag for header lines fetch */
#define FT_INTERNAL (long) 0x8	/* text can be internal strings */
				/* IMAP prefetch text when fetching header */
#define FT_PREFETCHTEXT (long) 0x20
#define FT_NOHDRS (long) 0x40	/* suppress fetching extra headers (note that
				   this breaks news handling) */
#define FT_NEEDENV (long) 0x80	/* (internal use) include envelope */
#define FT_NEEDBODY (long) 0x100/* (internal use) include body structure */
				/* no fetch lookahead */
#define FT_NOLOOKAHEAD (long) 0x200
				/* (internal use) lookahead in hdr searching */
#define FT_SEARCHLOOKAHEAD (long) 0x400
				/* stringstruct return hack */
#define FT_RETURNSTRINGSTRUCT (long) 0x800

/* Flagging options */

#define ST_UID (long) 0x1	/* argument is a UID sequence */
#define ST_SILENT (long) 0x2	/* don't return results */
#define ST_SET (long) 0x4	/* set vs. clear */

/* Expunge options */

#define EX_UID (long) 0x1	/* argument is a UID sequence */

/* Copy options */

#define CP_UID (long) 0x1	/* argument is a UID sequence */
#define CP_MOVE (long) 0x2	/* delete from source after copying */
				/* set debug in any created stream */
#define CP_DEBUG (long) 0x20000000

/* Search/sort/thread options */

#define SE_UID (long) 0x1	/* return UID */
#define SE_FREE (long) 0x2	/* free search program after finished */
#define SE_NOPREFETCH (long) 0x4/* no search prefetching */
#define SO_FREE (long) 0x8	/* free sort program after finished */
#define SE_NOSERVER (long) 0x10	/* don't do server-based search/sort/thread */
#define SE_RETAIN (long) 0x20	/* retain previous search results */
#define SO_OVERVIEW (long) 0x40	/* use overviews in searching (NNTP only) */
#define SE_NEEDBODY (long) 0x80	/* include body structure in prefetch */
#define SE_NOHDRS (long) 0x100	/* suppress prefetching extra headers (note
				   that this breaks news handling) */
#define SE_NOLOCAL (long) 0x200	/* no local retry (IMAP only) */

#define SO_NOSERVER SE_NOSERVER	/* compatibility name */
#define SE_SILLYOK (long) 0x400	/* allow silly searches */

/* Status options */

#define SA_MESSAGES (long) 0x1	/* number of messages */
#define SA_RECENT (long) 0x2	/* number of recent messages */
#define SA_UNSEEN (long) 0x4	/* number of unseen messages */
#define SA_UIDNEXT (long) 0x8	/* next UID to be assigned */
				/* UID validity value */
#define SA_UIDVALIDITY (long) 0x10
				/* set OP_DEBUG on any created stream */
#define SA_DEBUG (long) 0x10000000
				/* use multiple newsrcs */
#define SA_MULNEWSRC (long) 0x20000000

/* Mailgets flags */

#define MG_UID (long) 0x1	/* message number is a UID */
#define MG_COPY (long) 0x2	/* must return copy of argument */

/* SASL authenticator categories */

#define AU_SECURE (long) 0x1	/* /secure allowed */
#define AU_AUTHUSER (long) 0x2	/* /authuser=xxx allowed */
				/* authenticator hidden */
#define AU_HIDE (long) 0x10000000
				/* authenticator disabled */
#define AU_DISABLE (long) 0x20000000

/* Garbage collection flags */

#define GC_ELT (long) 0x1	/* message cache elements */
#define GC_ENV (long) 0x2	/* envelopes and bodies */
#define GC_TEXTS (long) 0x4	/* cached texts */

/* mm_log()/mm_notify() condition codes */

#define WARN (long) 1		/* mm_log warning type */
#define ERROR (long) 2		/* mm_log error type */
#define PARSE (long) 3		/* mm_log parse error type */
#define BYE (long) 4		/* mm_notify stream dying */
#define TCPDEBUG (long) 5	/* mm_log TCP debug babble */

/* Bits from mail_parse_flags().  Don't change these, since the header format
 * used by tenex, mtx, and mbx corresponds to these bits.
 */

#define fSEEN 0x1
#define fDELETED 0x2
#define fFLAGGED 0x4
#define fANSWERED 0x8
#define fOLD 0x10
#define fDRAFT 0x20

#define fEXPUNGED 0x8000	/* internal flag */

/* Bits for mm_list() and mm_lsub() */

/* Note that (LATT_NOINFERIORS LATT_HASCHILDREN LATT_HASNOCHILDREN) and
 * (LATT_NOSELECT LATT_MARKED LATT_UNMARKED) each have eight possible states,
 * but only four of these are valid.  The other four are silly states which
 * while invalid can unfortunately be expressed in the IMAP protocol.
 */

/* terminal node in hierarchy */
#define LATT_NOINFERIORS (long) 0x1
				/* name can not be selected */
#define LATT_NOSELECT (long) 0x2
				/* changed since last accessed */
#define LATT_MARKED (long) 0x4
				/* accessed since last changed */
#define LATT_UNMARKED (long) 0x8
				/* name has referral to remote mailbox */
#define LATT_REFERRAL (long) 0x10
				/* has selectable inferiors */
#define LATT_HASCHILDREN (long) 0x20
				/* has no selectable inferiors */
#define LATT_HASNOCHILDREN (long) 0x40

/* Sort functions */

#define SORTDATE 0		/* date */
#define SORTARRIVAL 1		/* arrival date */
#define SORTFROM 2		/* from */
#define SORTSUBJECT 3		/* subject */
#define SORTTO 4		/* to */
#define SORTCC 5		/* cc */
#define SORTSIZE 6		/* size */

/* imapreferral_t codes */

#define REFAUTHFAILED (long) 0	/* authentication referral -- not logged in */
#define REFAUTH (long) 1	/* authentication referral -- logged in */
#define REFSELECT (long) 2	/* select referral */
#define REFCREATE (long) 3
#define REFDELETE (long) 4
#define REFRENAME (long) 5
#define REFSUBSCRIBE (long) 6
#define REFUNSUBSCRIBE (long) 7
#define REFSTATUS (long) 8
#define REFCOPY (long) 9
#define REFAPPEND (long) 10

/* sendcommand_t codes */

/* expunge response deferred */
#define SC_EXPUNGEDEFERRED (long) 1

/* Block notification codes */

#define BLOCK_NONE 0		/* not blocked */
#define BLOCK_SENSITIVE 1	/* sensitive code, disallow alarms */
#define BLOCK_NONSENSITIVE 2	/* non-sensitive code, allow alarms */
#define BLOCK_DNSLOOKUP 10	/* blocked on DNS lookup */
#define BLOCK_TCPOPEN 11	/* blocked on TCP open */
#define BLOCK_TCPREAD 12	/* blocked on TCP read */
#define BLOCK_TCPWRITE 13	/* blocked on TCP write */
#define BLOCK_TCPCLOSE 14	/* blocked on TCP close */
#define BLOCK_FILELOCK 20	/* blocked on file locking */

/* In-memory sized-text */

#define SIZEDTEXT struct mail_sizedtext

SIZEDTEXT {
  unsigned char *data;		/* text */
  unsigned long size;		/* size of text in octets */
};

/* String list */

#define STRINGLIST struct string_list

STRINGLIST {
  SIZEDTEXT text;		/* string text */
  STRINGLIST *next;
};

/* Parse results from mail_valid_net_parse */

#define NETMAXHOST 256
#define NETMAXUSER 65
#define NETMAXMBX (MAILTMPLEN/4)
#define NETMAXSRV 21
typedef struct net_mailbox {
  char host[NETMAXHOST];	/* host name (may be canonicalized) */
  char orighost[NETMAXHOST];	/* host name before canonicalization */
  char user[NETMAXUSER];	/* user name */
  char authuser[NETMAXUSER];	/* authentication user name */
  char mailbox[NETMAXMBX];	/* mailbox name */
  char service[NETMAXSRV];	/* service name */
  unsigned long port;		/* TCP port number */
  unsigned int anoflag : 1;	/* anonymous */
  unsigned int dbgflag : 1;	/* debug flag */
  unsigned int secflag : 1;	/* secure flag */
  unsigned int sslflag : 1;	/* SSL driver flag */
  unsigned int trysslflag : 1;	/* try SSL driver first flag */
  unsigned int novalidate : 1;	/* don't validate certificates */
  unsigned int tlsflag : 1;	/* TLS flag */
  unsigned int notlsflag : 1;	/* do not do TLS flag */
  unsigned int readonlyflag : 1;/* want readonly */
  unsigned int norsh : 1;	/* don't use rsh/ssh */
  unsigned int loser : 1;	/* server is a loser */
  unsigned int tlssslv23 : 1;	/* force SSLv23 client method over TLS */
} NETMBX;

/* Item in an address list */

#define ADDRESS struct mail_address

ADDRESS {
  char *personal;		/* personal name phrase */
  char *adl;			/* at-domain-list source route */
  char *mailbox;		/* mailbox name */
  char *host;			/* domain name of mailbox's host */
  char *error;			/* error in address from SMTP module */
  struct {
    char *type;			/* address type (default "rfc822") */
    char *addr;			/* address as xtext */
  } orcpt;
  ADDRESS *next;		/* pointer to next address in list */
};

/* Message envelope */

typedef struct mail_envelope {
  unsigned int incomplete : 1;	/* envelope may be incomplete */
  unsigned int imapenvonly : 1;	/* envelope only has IMAP envelope */
  char *remail;			/* remail header if any */
  ADDRESS *return_path;		/* error return address */
  unsigned char *date;		/* message composition date string */
  ADDRESS *from;		/* originator address list */
  ADDRESS *sender;		/* sender address list */
  ADDRESS *reply_to;		/* reply address list */
  char *subject;		/* message subject string */
  ADDRESS *to;			/* primary recipient list */
  ADDRESS *cc;			/* secondary recipient list */
  ADDRESS *bcc;			/* blind secondary recipient list */
  char *in_reply_to;		/* replied message ID */
  char *message_id;		/* message ID */
  char *newsgroups;		/* USENET newsgroups */
  char *followup_to;		/* USENET reply newsgroups */
  char *references;		/* USENET references */
  void *sparep;			/* spare pointer reserved for main program */
} ENVELOPE;

/* Primary body types */
/* If you change any of these you must also change body_types in rfc822.c */

#define TYPETEXT 0		/* unformatted text */
#define TYPEMULTIPART 1		/* multiple part */
#define TYPEMESSAGE 2		/* encapsulated message */
#define TYPEAPPLICATION 3	/* application data */
#define TYPEAUDIO 4		/* audio */
#define TYPEIMAGE 5		/* static image */
#define TYPEVIDEO 6		/* video */
#define TYPEMODEL 7		/* model */
#define TYPEOTHER 8		/* unknown */
#define TYPEMAX 15		/* maximum type code */

/* Body encodings */
/* If you change any of these you must also change body_encodings in rfc822.c
 */

#define ENC7BIT 0		/* 7 bit SMTP semantic data */
#define ENC8BIT 1		/* 8 bit SMTP semantic data */
#define ENCBINARY 2		/* 8 bit binary data */
#define ENCBASE64 3		/* base-64 encoded data */
#define ENCQUOTEDPRINTABLE 4	/* human-readable 8-as-7 bit data */
#define ENCOTHER 5		/* unknown */
#define ENCMAX 10		/* maximum encoding code */

/* Body contents */

#define BODY struct mail_bodystruct
#define MESSAGE struct mail_body_message
#define PARAMETER struct mail_body_parameter
#define PART struct mail_body_part
#define PARTTEXT struct mail_body_text

/* Message body text */

PARTTEXT {
  unsigned long offset;		/* offset from body origin */
  SIZEDTEXT text;		/* text */
};

/* Message body structure */

BODY {
  unsigned short type;		/* body primary type */
  unsigned short encoding;	/* body transfer encoding */
  char *subtype;		/* subtype string */
  PARAMETER *parameter;		/* parameter list */
  char *id;			/* body identifier */
  char *description;		/* body description */
  struct {			/* body disposition */
    char *type;			/* disposition type */
    PARAMETER *parameter;	/* disposition parameters */
  } disposition;
  STRINGLIST *language;		/* body language */
  char *location;		/* body content URI */
  PARTTEXT mime;		/* MIME header */
  PARTTEXT contents;		/* body part contents */
  union {			/* different ways of accessing contents */
    PART *part;			/* body part list */
    MESSAGE *msg;		/* body encapsulated message */
  } nested;
  struct {
    unsigned long lines;	/* size of text in lines */
    unsigned long bytes;	/* size of text in octets */
  } size;
  char *md5;			/* MD5 checksum */
  void *sparep;			/* spare pointer reserved for main program */
};

/* Parameter list */

PARAMETER {
  char *attribute;		/* parameter attribute name */
  char *value;			/* parameter value */
  PARAMETER *next;		/* next parameter in list */
};

/* Multipart content list */

PART {
  BODY body;			/* body information for this part */
  PART *next;			/* next body part */
};

/* RFC-822 Message */

MESSAGE {
  ENVELOPE *env;		/* message envelope */
  BODY *body;			/* message body */
  PARTTEXT full;		/* full message */
  STRINGLIST *lines;		/* lines used to filter header */
  PARTTEXT header;		/* header text */
  PARTTEXT text;		/* body text */
};

/* Entry in the message cache array */

typedef struct message_cache {
  unsigned long msgno;		/* message number */
  unsigned int lockcount : 8;	/* non-zero if multiple references */
  unsigned long rfc822_size;	/* # of bytes of message as raw RFC822 */
  struct {			/* c-client internal use only */
    unsigned long uid;		/* message unique ID */
    unsigned long mod;		/* modseq */
    PARTTEXT special;		/* special text pointers */
    MESSAGE msg;		/* internal message pointers */
    union {			/* driver internal use */
      unsigned long data;
      void *ptr;
    } spare;
    unsigned int sequence : 1;	/* saved sequence bit */
    unsigned int dirty : 1;	/* driver internal use */
    unsigned int filter : 1;	/* driver internal use */
    unsigned int ghost : 1;	/* driver internal use */
  } private;
			/* internal date */
  unsigned int day : 5;		/* day of month (1-31) */
  unsigned int month : 4;	/* month of year (1-12) */
  unsigned int year : 7;	/* year since BASEYEAR (expires in 127 yrs) */
  unsigned int hours: 5;	/* hours (0-23) */
  unsigned int minutes: 6;	/* minutes (0-59) */
  unsigned int seconds: 6;	/* seconds (0-59) */
  unsigned int zoccident : 1;	/* non-zero if west of UTC */
  unsigned int zhours : 4;	/* hours from UTC (0-12) */
  unsigned int zminutes: 6;	/* minutes (0-59) */
			/* system flags */
  unsigned int seen : 1;	/* system Seen flag */
  unsigned int deleted : 1;	/* system Deleted flag */
  unsigned int flagged : 1; 	/* system Flagged flag */
  unsigned int answered : 1;	/* system Answered flag */
  unsigned int draft : 1;	/* system Draft flag */
  unsigned int recent : 1;	/* system Recent flag */
			/* message status */
  unsigned int valid : 1;	/* elt has valid flags */
  unsigned int searched : 1;	/* message was searched */
  unsigned int sequence : 1;	/* message is in sequence */
			/* reserved for use by main program */
  unsigned int spare : 1;	/* first spare bit */
  unsigned int spare2 : 1;	/* second spare bit */
  unsigned int spare3 : 1;	/* third spare bit */
  unsigned int spare4 : 1;	/* fourth spare bit */
  unsigned int spare5 : 1;	/* fifth spare bit */
  unsigned int spare6 : 1;	/* sixth spare bit */
  unsigned int spare7 : 1;	/* seventh spare bit */
  unsigned int spare8 : 1;	/* eighth spare bit */
  void *sparep;			/* spare pointer */
  unsigned long user_flags;	/* user-assignable flags */
} MESSAGECACHE;

/* String structure */

#define STRINGDRIVER struct string_driver

typedef struct mailstring {
  void *data;			/* driver-dependent data */
  unsigned long data1;		/* driver-dependent data */
  unsigned long size;		/* total length of string */
  char *chunk;			/* base address of chunk */
  unsigned long chunksize;	/* size of chunk */
  unsigned long offset;		/* offset of this chunk in base */
  char *curpos;			/* current position in chunk */
  unsigned long cursize;	/* number of bytes remaining in chunk */
  STRINGDRIVER *dtb;		/* driver that handles this type of string */
} STRING;

/* Dispatch table for string driver */

STRINGDRIVER {
				/* initialize string driver */
  void (*init) (STRING *s,void *data,unsigned long size);
				/* get next character in string */
  char (*next) (STRING *s);
				/* set position in string */
  void (*setpos) (STRING *s,unsigned long i);
};

/* Stringstruct access routines */

#define INIT(s,d,data,size) ((*((s)->dtb = &d)->init) (s,data,size))
#define SIZE(s) ((s)->size - GETPOS (s))
#define CHR(s) (*(s)->curpos)
#define SNX(s) (--(s)->cursize ? *(s)->curpos++ : (*(s)->dtb->next) (s))
#define GETPOS(s) ((s)->offset + ((s)->curpos - (s)->chunk))
#define SETPOS(s,i) (*(s)->dtb->setpos) (s,i)

/* Search program */

#define SEARCHPGM struct search_program
#define SEARCHHEADER struct search_header
#define SEARCHSET struct search_set
#define SEARCHOR struct search_or
#define SEARCHPGMLIST struct search_pgm_list

SEARCHHEADER {			/* header search */
  SIZEDTEXT line;		/* header line */
  SIZEDTEXT text;		/* text in header */
  SEARCHHEADER *next;		/* next in list */
};

SEARCHSET {			/* message set */
  unsigned long first;		/* sequence number */
  unsigned long last;		/* last value, if a range */
  SEARCHSET *next;		/* next in list */
};

SEARCHOR {
  SEARCHPGM *first;		/* first program */
  SEARCHPGM *second;		/* second program */
  SEARCHOR *next;		/* next in list */
};

SEARCHPGMLIST {
  SEARCHPGM *pgm;		/* search program */
  SEARCHPGMLIST *next;		/* next in list */
};

SEARCHPGM {			/* search program */
  SEARCHSET *msgno;		/* message numbers */
  SEARCHSET *uid;		/* unique identifiers */
  SEARCHOR *or;			/* or'ed in programs */
  SEARCHPGMLIST *not;		/* and'ed not program */
  SEARCHHEADER *header;		/* list of headers */
  STRINGLIST *bcc;		/* bcc recipients */
  STRINGLIST *body;		/* text in message body */
  STRINGLIST *cc;		/* cc recipients */
  STRINGLIST *from;		/* originator */
  STRINGLIST *keyword;		/* keywords */
  STRINGLIST *unkeyword;	/* unkeywords */
  STRINGLIST *subject;		/* text in subject */
  STRINGLIST *text;		/* text in headers and body */
  STRINGLIST *to;		/* to recipients */
  unsigned long larger;		/* larger than this size */
  unsigned long smaller;	/* smaller than this size */
  unsigned long older;		/* older than this interval */
  unsigned long younger;	/* younger than this interval */
  unsigned short sentbefore;	/* sent before this date */
  unsigned short senton;	/* sent on this date */
  unsigned short sentsince;	/* sent since this date */
  unsigned short before;	/* before this date */
  unsigned short on;		/* on this date */
  unsigned short since;		/* since this date */
  unsigned int answered : 1;	/* answered messages */
  unsigned int unanswered : 1;	/* unanswered messages */
  unsigned int deleted : 1;	/* deleted messages */
  unsigned int undeleted : 1;	/* undeleted messages */
  unsigned int draft : 1;	/* message draft */
  unsigned int undraft : 1;	/* message undraft */
  unsigned int flagged : 1;	/* flagged messages */
  unsigned int unflagged : 1;	/* unflagged messages */
  unsigned int recent : 1;	/* recent messages */
  unsigned int old : 1;		/* old messages */
  unsigned int seen : 1;	/* seen messages */
  unsigned int unseen : 1;	/* unseen messages */
  /* These must be simulated in IMAP */
  STRINGLIST *return_path;	/* error return address */
  STRINGLIST *sender;		/* sender address list */
  STRINGLIST *reply_to;		/* reply address list */
  STRINGLIST *in_reply_to;	/* replied message ID */
  STRINGLIST *message_id;	/* message ID */
  STRINGLIST *newsgroups;	/* USENET newsgroups */
  STRINGLIST *followup_to;	/* USENET reply newsgroups */
  STRINGLIST *references;	/* USENET references */
};

/* Mailbox status */

typedef struct mbx_status {
  long flags;			/* validity flags */
  unsigned long messages;	/* number of messages */
  unsigned long recent;		/* number of recent messages */
  unsigned long unseen;		/* number of unseen messages */
  unsigned long uidnext;	/* next UID to be assigned */
  unsigned long uidvalidity;	/* UID validity value */
} MAILSTATUS;

/* Sort program */

typedef void (*postsort_t) (void *sc);

#define SORTPGM struct sort_program

SORTPGM {
  unsigned int reverse : 1;	/* sort function is to be reversed */
  unsigned int abort : 1;	/* abort sorting */
  short function;		/* sort function */
  unsigned long nmsgs;		/* number of messages being sorted */
  struct {
    unsigned long cached;	/* number of messages cached so far */
    unsigned long sorted;	/* number of messages sorted so far */
    unsigned long postsorted;	/* number of postsorted messages so far */
  } progress;
  postsort_t postsort;		/* post sorter */
  SORTPGM *next;		/* next function */
};

/* Sort cache */

#define SORTCACHE struct sort_cache

SORTCACHE {
  unsigned int sorted : 1;	/* message has been sorted */
  unsigned int postsorted : 1;	/* message has been postsorted */
  unsigned int refwd : 1;	/* subject is a re or fwd */
  unsigned int dirty : 1;	/* has data not written to backup */
  SORTPGM *pgm;			/* sort program */
  unsigned long num;		/* message number (sequence or UID) */
  unsigned long date;		/* sent date */
  unsigned long arrival;	/* arrival date */
  unsigned long size;		/* message size */
  char *from;			/* from string */
  char *to;			/* to string */
  char *cc;			/* cc string */
  char *subject;		/* extracted subject string */
  char *message_id;		/* message-id string */
  char *unique;			/* unique string, normally message-id */
  STRINGLIST *references;	/* references string */
};

/* ACL list */

#define ACLLIST struct acl_list

ACLLIST {
  char *identifier;		/* authentication identifier */
  char *rights;			/* access rights */
  ACLLIST *next;
};

/* Quota resource list */

#define QUOTALIST struct quota_list

QUOTALIST {
  char *name;			/* resource name */
  unsigned long usage;		/* resource usage */
  unsigned long limit;		/* resource limit */
  QUOTALIST *next;		/* next resource */
};

/* Mail Access I/O stream */

/* Structure for mail driver dispatch */

#define DRIVER struct driver

/* Mail I/O stream */
	
typedef struct mail_stream {
  DRIVER *dtb;			/* dispatch table for this driver */
  void *local;			/* pointer to driver local data */
  char *mailbox;		/* mailbox name (canonicalized) */
  char *original_mailbox;	/* mailbox name (non-canonicalized) */
  unsigned short use;		/* stream use count */
  unsigned short sequence;	/* stream sequence */
  unsigned int inbox : 1;	/* stream open on an INBOX */
  unsigned int lock : 1;	/* stream lock flag */
  unsigned int debug : 1;	/* stream debug flag */
  unsigned int silent : 1;	/* don't pass events to main program */
  unsigned int rdonly : 1;	/* stream read-only flag */
  unsigned int anonymous : 1;	/* stream anonymous access flag */
  unsigned int scache : 1;	/* stream short cache flag */
  unsigned int halfopen : 1;	/* stream half-open flag */
  unsigned int secure : 1;	/* stream secure flag */
  unsigned int tryssl : 1;	/* stream tryssl flag */
  unsigned int mulnewsrc : 1;	/* stream use multiple newsrc files */
  unsigned int perm_seen : 1;	/* permanent Seen flag */
  unsigned int perm_deleted : 1;/* permanent Deleted flag */
  unsigned int perm_flagged : 1;/* permanent Flagged flag */
  unsigned int perm_answered :1;/* permanent Answered flag */
  unsigned int perm_draft : 1;	/* permanent Draft flag */
  unsigned int kwd_create : 1;	/* can create new keywords */
  unsigned int uid_nosticky : 1;/* UIDs are not preserved */
  unsigned int unhealthy : 1;	/* unhealthy protocol negotiations */
  unsigned int nokod : 1;	/* suppress kiss-of-death */
  unsigned int sniff : 1;	/* metadata only */
  unsigned long perm_user_flags;/* mask of permanent user flags */
  unsigned long gensym;		/* generated tag */
  unsigned long nmsgs;		/* # of associated msgs */
  unsigned long recent;		/* # of recent msgs */
  unsigned long uid_validity;	/* UID validity sequence */
  unsigned long uid_last;	/* last assigned UID */
  char *user_flags[NUSERFLAGS];	/* pointers to user flags in bit order */
  unsigned long cachesize;	/* size of message cache */
  MESSAGECACHE **cache;		/* message cache array */
  SORTCACHE **sc;		/* sort cache array */
  unsigned long msgno;		/* message number of `current' message */
  ENVELOPE *env;		/* scratch buffer for envelope */
  BODY *body;			/* scratch buffer for body */
  SIZEDTEXT text;		/* scratch buffer for text */
  struct {
    char *name;			/* mailbox name to snarf from */
    unsigned long time;		/* last snarf time */
    long options;		/* snarf open options */
  } snarf;
  struct {			/* internal use only */
    struct {			/* search temporaries */
      STRINGLIST *string;	/* string(s) to search */
      long result;		/* search result */
      char *text;		/* cache of fetched text */
    } search;
    STRING string;		/* stringstruct return hack */
  } private;
			/* reserved for use by main program */
  void *sparep;			/* spare pointer */
  unsigned int spare : 1;	/* first spare bit */
  unsigned int spare2 : 1;	/* second spare bit */
  unsigned int spare3 : 1;	/* third spare bit */
  unsigned int spare4 : 1;	/* fourth spare bit */
  unsigned int spare5 : 1;	/* fifth spare bit */
  unsigned int spare6 : 1;	/* sixth spare bit */
  unsigned int spare7 : 1;	/* seventh spare bit */
  unsigned int spare8 : 1;	/* eighth spare bit */
} MAILSTREAM;

/* Mail I/O stream handle */

typedef struct mail_stream_handle {
  MAILSTREAM *stream;		/* pointer to mail stream */
  unsigned short sequence;	/* sequence of what we expect stream to be */
} MAILHANDLE;

/* Message overview */

typedef struct mail_overview {
  char *subject;		/* message subject string */
  ADDRESS *from;		/* originator address list */
  char *date;			/* message composition date string */
  char *message_id;		/* message ID */
  char *references;		/* USENET references */
  struct {			/* may be 0 or NUL if unknown/undefined */
    unsigned long octets;	/* message octets (probably LF-newline form) */
    unsigned long lines;	/* message lines */
    char *xref;			/* cross references */
  } optional;
} OVERVIEW;

/* Network access I/O stream */

/* Structure for network driver dispatch */

#define NETDRIVER struct net_driver

/* Network transport I/O stream */

typedef struct net_stream {
  void *stream;			/* driver's I/O stream */
  NETDRIVER *dtb;		/* network driver */
} NETSTREAM;

/* Network transport driver dispatch */

NETDRIVER {
  void *(*open) (char *host,char *service,unsigned long port);
  void *(*aopen) (NETMBX *mb,char *service,char *usrbuf);
  char *(*getline) (void *stream);
  long (*getbuffer) (void *stream,unsigned long size,char *buffer);
  long (*soutr) (void *stream,char *string);
  long (*sout) (void *stream,char *string,unsigned long size);
  void (*close) (void *stream);
  char *(*host) (void *stream);
  char *(*remotehost) (void *stream);
  unsigned long (*port) (void *stream);
  char *(*localhost) (void *stream);
};

/* Mailgets data identifier */

typedef struct getsdata {
  MAILSTREAM *stream;
  unsigned long msgno;
  char *what;
  STRINGLIST *stl;
  unsigned long first;
  unsigned long last;
  long flags;
} GETS_DATA;

#define INIT_GETS(md,s,m,w,f,l) \
  md.stream = s, md.msgno = m, md.what = w, md.first = f, md.last = l, \
  md.stl = NIL, md.flags = NIL;

/* Mail delivery I/O stream */

typedef struct send_stream {
  NETSTREAM *netstream;		/* network I/O stream */
  char *host;			/* SMTP service host */
  char *reply;			/* last reply string */
  long replycode;		/* last reply code */
  unsigned int debug : 1;	/* stream debug flag */
  unsigned int sensitive : 1;	/* sensitive data in progress */
  unsigned int loser : 1;	/* server is a loser */
  unsigned int saslcancel : 1;	/* SASL cancelled by protocol */
  union {			/* protocol specific */
    struct {			/* SMTP specific */
      unsigned int ok : 1;	/* supports ESMTP */
      struct {			/* service extensions */
	unsigned int send : 1;	/* supports SEND */
	unsigned int soml : 1;	/* supports SOML */
	unsigned int saml : 1;	/* supports SAML */
	unsigned int expn : 1;	/* supports EXPN */
	unsigned int help : 1;	/* supports HELP */
	unsigned int turn : 1;	/* supports TURN */
	unsigned int etrn : 1;	/* supports ETRN */
	unsigned int starttls:1;/* supports STARTTLS */
	unsigned int relay : 1;	/* supports relaying */
	unsigned int pipe : 1;	/* supports pipelining */
	unsigned int ensc : 1;	/* supports enhanced status codes */
	unsigned int bmime : 1;	/* supports BINARYMIME */
	unsigned int chunk : 1;	/* supports CHUNKING */
      } service;
      struct {			/* 8-bit MIME transport */
	unsigned int ok : 1;	/* supports 8-bit MIME */
	unsigned int want : 1;	/* want 8-bit MIME */
      } eightbit;
      struct {			/* delivery status notification */
	unsigned int ok : 1;	/* supports DSN */
	unsigned int want : 1;	/* want DSN */
	struct {		/* notification options */
				/* notify on failure */
	  unsigned int failure : 1;
				/* notify on delay */
	  unsigned int delay : 1;
				/* notify on success */
	  unsigned int success : 1;
	} notify;
	unsigned int full : 1;	/* return full headers */
	char *envid;		/* envelope identifier as xtext */
      } dsn;
      struct {			/* size declaration */
	unsigned int ok : 1;	/* supports SIZE */
	unsigned long limit;	/* maximum size supported */
      } size;
      struct {			/* deliverby declaration */
	unsigned int ok : 1;	/* supports DELIVERBY */
	unsigned long minby;	/* minimum by-time */
      } deliverby;
      struct {			/* authenticated turn */
	unsigned int ok : 1;	/* supports ATRN */
	char *domains;		/* domains */
      } atrn;
				/* supported SASL authenticators */
      unsigned int auth : MAXAUTHENTICATORS;
    } esmtp;
    struct {			/* NNTP specific */
      unsigned int post : 1;	/* supports POST */
      struct {			/* NNTP extensions */
	unsigned int ok : 1;	/* supports extensions */
				/* supports LISTGROUP */
	unsigned int listgroup : 1;
	unsigned int over : 1;	/* supports OVER */
	unsigned int hdr : 1;	/* supports HDR */
	unsigned int pat : 1;	/* supports PAT */
				/* supports STARTTLS */
	unsigned int starttls : 1;
				/* server has MULTIDOMAIN */
	unsigned int multidomain : 1;
				/* supports AUTHINFO USER */
	unsigned int authuser : 1;
				/* supported authenticators */
	unsigned int sasl : MAXAUTHENTICATORS;
      } ext;
    } nntp;
  } protocol;
} SENDSTREAM;

/* Jacket into external interfaces */

typedef long (*readfn_t) (void *stream,unsigned long size,char *buffer);
typedef char *(*mailgets_t) (readfn_t f,void *stream,unsigned long size,
			     GETS_DATA *md);
typedef char *(*readprogress_t) (GETS_DATA *md,unsigned long octets);
typedef void *(*mailcache_t) (MAILSTREAM *stream,unsigned long msgno,long op);
typedef long (*mailproxycopy_t) (MAILSTREAM *stream,char *sequence,
				 char *mailbox,long options);
typedef long (*tcptimeout_t) (long overall,long last);
typedef void *(*authchallenge_t) (void *stream,unsigned long *len);
typedef long (*authrespond_t) (void *stream,char *s,unsigned long size);
typedef long (*authcheck_t) (void);
typedef long (*authclient_t) (authchallenge_t challenger,
			      authrespond_t responder,char *service,NETMBX *mb,
			      void *s,unsigned long *trial,char *user);
typedef char *(*authresponse_t) (void *challenge,unsigned long clen,
				 unsigned long *rlen);
typedef char *(*authserver_t) (authresponse_t responder,int argc,char *argv[]);
typedef void (*smtpverbose_t) (char *buffer);
typedef void (*imapenvelope_t) (MAILSTREAM *stream,unsigned long msgno,
				ENVELOPE *env);
typedef char *(*imapreferral_t) (MAILSTREAM *stream,char *url,long code);
typedef void (*overview_t) (MAILSTREAM *stream,unsigned long uid,OVERVIEW *ov,
			    unsigned long msgno);
typedef unsigned long *(*sorter_t) (MAILSTREAM *stream,char *charset,
				    SEARCHPGM *spg,SORTPGM *pgm,long flags);
typedef void (*parseline_t) (ENVELOPE *env,char *hdr,char *data,char *host);
typedef ADDRESS *(*parsephrase_t) (char *phrase,char *end,char *host);
typedef void *(*blocknotify_t) (int reason,void *data);
typedef long (*kinit_t) (char *host,char *reason);
typedef void (*sendcommand_t) (MAILSTREAM *stream,char *cmd,long flags);
typedef char *(*newsrcquery_t) (MAILSTREAM *stream,char *mulname,char *name);
typedef void (*getacl_t) (MAILSTREAM *stream,char *mailbox,ACLLIST *acl);
typedef void (*listrights_t) (MAILSTREAM *stream,char *mailbox,char *id,
			      char *alwaysrights,STRINGLIST *possiblerights);
typedef void (*myrights_t) (MAILSTREAM *stream,char *mailbox,char *rights);
typedef void (*quota_t) (MAILSTREAM *stream,char *qroot,QUOTALIST *qlist);
typedef void (*quotaroot_t) (MAILSTREAM *stream,char *mbx,STRINGLIST *qroot);
typedef void (*sortresults_t) (MAILSTREAM *stream,unsigned long *list,
			       unsigned long size);
typedef char *(*userprompt_t) (void);
typedef long (*append_t) (MAILSTREAM *stream,void *data,char **flags,
			  char **date,STRING **message);
typedef void (*copyuid_t) (MAILSTREAM *stream,char *mailbox,
			   unsigned long uidvalidity,SEARCHSET *sourceset,
			   SEARCHSET *destset);
typedef void (*appenduid_t) (char *mailbox,unsigned long uidvalidity,
			     SEARCHSET *set);
typedef long (*dirfmttest_t) (char *name);
typedef long (*scancontents_t) (char *name,char *contents,unsigned long csiz,
				unsigned long fsiz);

typedef void (*freeeltsparep_t) (void **sparep);
typedef void (*freeenvelopesparep_t) (void **sparep);
typedef void (*freebodysparep_t) (void **sparep);
typedef void (*freestreamsparep_t) (void **sparep);
typedef void *(*sslstart_t) (void *stream,char *host,unsigned long flags);
typedef long (*sslcertificatequery_t) (char *reason,char *host,char *cert);
typedef void (*sslfailure_t) (char *host,char *reason,unsigned long flags);
typedef void (*logouthook_t) (void *data);
typedef char *(*sslclientcert_t) (void);
typedef char *(*sslclientkey_t) (void);

/* Globals */

extern char *body_types[];	/* defined body type strings */
extern char *body_encodings[];	/* defined body encoding strings */
extern const char *days[];	/* day name strings */
extern const char *months[];	/* month name strings */

/* Threading */

/* Thread node */

#define THREADNODE struct thread_node

THREADNODE {
  unsigned long num;		/* message number */
  SORTCACHE *sc;		/* (internal use) sortcache entry */
  THREADNODE *branch;		/* branch at this point in tree */
  THREADNODE *next;		/* next node */
};

typedef void (*threadresults_t) (MAILSTREAM *stream,THREADNODE *tree);

/* Thread dispatch */

#define THREADER struct threader_list

THREADER {
  char *name;			/* name of threader */
  THREADNODE *(*dispatch) (MAILSTREAM *stream,char *charset,SEARCHPGM *spg,
			   long flags,sorter_t sorter);
  THREADER *next;
};

/* Container for references threading */

typedef void ** container_t;

/* Namespaces */

#define NAMESPACE struct mail_namespace

NAMESPACE {
  char *name;			/* name of this namespace */
  int delimiter;		/* hierarchy delimiter */
  PARAMETER *param;		/* namespace parameters */
  NAMESPACE *next;		/* next namespace */
};

/* Authentication */

#define AUTHENTICATOR struct mail_authenticator

AUTHENTICATOR {
  long flags;			/* authenticator flags */
  char *name;			/* name of this authenticator */
  authcheck_t valid;		/* authenticator valid on this system */
  authclient_t client;		/* client function that supports it */
  authserver_t server;		/* server function that supports it */
  AUTHENTICATOR *next;		/* next authenticator */
};

/* Mail driver dispatch */

DRIVER {
  char *name;			/* driver name */
  unsigned long flags;		/* driver flags */
  DRIVER *next;			/* next driver */
				/* mailbox is valid for us */
  DRIVER *(*valid) (char *mailbox);
				/* manipulate driver parameters */
  void *(*parameters) (long function,void *value);
				/* scan mailboxes */
  void (*scan) (MAILSTREAM *stream,char *ref,char *pat,char *contents);
				/* list mailboxes */
  void (*list) (MAILSTREAM *stream,char *ref,char *pat);
				/* list subscribed mailboxes */
  void (*lsub) (MAILSTREAM *stream,char *ref,char *pat);
				/* subscribe to mailbox */
  long (*subscribe) (MAILSTREAM *stream,char *mailbox);
				/* unsubscribe from mailbox */
  long (*unsubscribe) (MAILSTREAM *stream,char *mailbox);
				/* create mailbox */
  long (*create) (MAILSTREAM *stream,char *mailbox);
				/* delete mailbox */
  long (*mbxdel) (MAILSTREAM *stream,char *mailbox);
				/* rename mailbox */
  long (*mbxren) (MAILSTREAM *stream,char *old,char *newname);
				/* status of mailbox */
  long (*status) (MAILSTREAM *stream,char *mbx,long flags);

/* open mailbox */
  MAILSTREAM *(*open) (MAILSTREAM *stream);
				/* close mailbox */
  void (*close) (MAILSTREAM *stream,long options);
				/* fetch message "fast" attributes */
  void (*fast) (MAILSTREAM *stream,char *sequence,long flags);
				/* fetch message flags */
  void (*msgflags) (MAILSTREAM *stream,char *sequence,long flags);
				/* fetch message overview */
  long (*overview) (MAILSTREAM *stream,overview_t ofn);
				/* fetch message envelopes */
  ENVELOPE *(*structure) (MAILSTREAM *stream,unsigned long msgno,BODY **body,
			  long flags);
				/* return RFC-822 header */
  char *(*header) (MAILSTREAM *stream,unsigned long msgno,
		   unsigned long *length,long flags);
				/* return RFC-822 text */
  long (*text) (MAILSTREAM *stream,unsigned long msgno,STRING *bs,long flags);
				/* load cache */
  long (*msgdata) (MAILSTREAM *stream,unsigned long msgno,char *section,
		   unsigned long first,unsigned long last,STRINGLIST *lines,
		   long flags);
				/* return UID for message */
  unsigned long (*uid) (MAILSTREAM *stream,unsigned long msgno);
				/* return message number from UID */
  unsigned long (*msgno) (MAILSTREAM *stream,unsigned long uid);
				/* modify flags */
  void (*flag) (MAILSTREAM *stream,char *sequence,char *flag,long flags);
				/* per-message modify flags */
  void (*flagmsg) (MAILSTREAM *stream,MESSAGECACHE *elt);
				/* search for message based on criteria */
  long (*search) (MAILSTREAM *stream,char *charset,SEARCHPGM *pgm,long flags);
				/* sort messages */
  unsigned long *(*sort) (MAILSTREAM *stream,char *charset,SEARCHPGM *spg,
			  SORTPGM *pgm,long flags);
				/* thread messages */
  THREADNODE *(*thread) (MAILSTREAM *stream,char *type,char *charset,
			 SEARCHPGM *spg,long flag);
				/* ping mailbox to see if still alive */
  long (*ping) (MAILSTREAM *stream);
				/* check for new messages */
  void (*check) (MAILSTREAM *stream);
				/* expunge deleted messages */
  long (*expunge) (MAILSTREAM *stream,char *sequence,long options);
				/* copy messages to another mailbox */
  long (*copy) (MAILSTREAM *stream,char *sequence,char *mailbox,long options);
				/* append string message to mailbox */
  long (*append) (MAILSTREAM *stream,char *mailbox,append_t af,void *data);
				/* garbage collect stream */
  void (*gc) (MAILSTREAM *stream,long gcflags);
};

#include "linkage.h"

/* Compatibility support names for old interfaces */

#define GET_TRYALTFIRST GET_TRYSSLFIRST
#define SET_TRYALTFIRST SET_TRYSSLFIRST
#define GET_IMAPTRYALT GET_IMAPTRYSSL
#define SET_IMAPTRYALT SET_IMAPTRYSSL
#define OP_TRYALT OP_TRYSSL
#define altflag sslflag

#define mail_close(stream) \
  mail_close_full (stream,NIL)
#define mail_fetchfast(stream,sequence) \
  mail_fetch_fast (stream,sequence,NIL)
#define mail_fetchfast_full mail_fetch_fast
#define mail_fetchflags(stream,sequence) \
  mail_fetch_flags (stream,sequence,NIL)
#define mail_fetchflags_full mail_fetch_flags
#define mail_fetchenvelope(stream,msgno) \
  mail_fetch_structure (stream,msgno,NIL,NIL)
#define mail_fetchstructure(stream,msgno,body) \
  mail_fetch_structure (stream,msgno,body,NIL)
#define mail_fetchstructure_full mail_fetch_structure
#define mail_fetchheader(stream,msgno) \
  mail_fetch_header (stream,msgno,NIL,NIL,NIL,FT_PEEK)
#define mail_fetchheader_full(stream,msgno,lines,len,flags) \
  mail_fetch_header (stream,msgno,NIL,lines,len,FT_PEEK | (flags))
#define mail_fetchtext(stream,msgno) \
  mail_fetch_text (stream,msgno,NIL,NIL,NIL)
#define mail_fetchtext_full(stream,msgno,length,flags) \
  mail_fetch_text (stream,msgno,NIL,length,flags)
#define mail_fetchbody(stream,msgno,section,length) \
  mail_fetch_body (stream,msgno,section,length,NIL)
#define mail_fetchbody_full mail_fetch_body
#define mail_setflag(stream,sequence,flag) \
  mail_flag (stream,sequence,flag,ST_SET)
#define mail_setflag_full(stream,sequence,flag,flags) \
  mail_flag (stream,sequence,flag,ST_SET | (flags))
#define mail_clearflag(stream,sequence,flag) \
  mail_flag (stream,sequence,flag,NIL)
#define mail_clearflag_full mail_flag
#define mail_search(stream,criteria) \
  mail_search_full (stream,NIL,mail_criteria (criteria),SE_FREE);
#define mail_expunge(stream) \
  mail_expunge_full (stream,NIL,NIL)
#define mail_copy(stream,sequence,mailbox) \
  mail_copy_full (stream,sequence,mailbox,NIL)
#define mail_move(stream,sequence,mailbox) \
  mail_copy_full (stream,sequence,mailbox,CP_MOVE)
#define mail_append(stream,mailbox,message) \
  mail_append_full (stream,mailbox,NIL,NIL,message)

/* Interfaces for SVR4 locking brain-damage workaround */

/* Driver dispatching */

#define SAFE_DELETE(dtb,stream,mailbox) (*dtb->mbxdel) (stream,mailbox)
#define SAFE_RENAME(dtb,stream,old,newname) (*dtb->mbxren) (stream,old,newname)
#define SAFE_STATUS(dtb,stream,mbx,flags) (*dtb->status) (stream,mbx,flags)
#define SAFE_COPY(dtb,stream,sequence,mailbox,options) \
  (*dtb->copy) (stream,sequence,mailbox,options)
#define SAFE_APPEND(dtb,stream,mailbox,af,data) \
  (*dtb->append) (stream,mailbox,af,data)
#define SAFE_SCAN_CONTENTS(dtb,name,contents,csiz,fsiz) \
  scan_contents (dtb,name,contents,csiz,fsiz)

/* Driver callbacks */

#define MM_EXISTS mm_exists
#define MM_EXPUNGED mm_expunged
#define MM_FLAGS mm_flags
#define MM_NOTIFY mm_notify
#define MM_STATUS mm_status
#define MM_LOG mm_log
#define MM_CRITICAL mm_critical
#define MM_NOCRITICAL mm_nocritical
#define MM_DISKERROR mm_diskerror
#define MM_FATAL mm_fatal
#define MM_APPEND(af) (*af)

/* Function prototypes */

void mm_searched (MAILSTREAM *stream,unsigned long number);
void mm_exists (MAILSTREAM *stream,unsigned long number);
void mm_expunged (MAILSTREAM *stream,unsigned long number);
void mm_flags (MAILSTREAM *stream,unsigned long number);
void mm_notify (MAILSTREAM *stream,char *string,long errflg);
void mm_list (MAILSTREAM *stream,int delimiter,char *name,long attributes);
void mm_lsub (MAILSTREAM *stream,int delimiter,char *name,long attributes);
void mm_status (MAILSTREAM *stream,char *mailbox,MAILSTATUS *status);
void mm_log (char *string,long errflg);
void mm_dlog (char *string);
void mm_login (NETMBX *mb,char *user,char *pwd,long trial);
void mm_critical (MAILSTREAM *stream);
void mm_nocritical (MAILSTREAM *stream);
long mm_diskerror (MAILSTREAM *stream,long errcode,long serious);
void mm_fatal (char *string);
void *mm_cache (MAILSTREAM *stream,unsigned long msgno,long op);

extern STRINGDRIVER mail_string;
void mail_versioncheck (char *version);
void mail_link (DRIVER *driver);
void *mail_parameters (MAILSTREAM *stream,long function,void *value);
DRIVER *mail_valid (MAILSTREAM *stream,char *mailbox,char *purpose);
DRIVER *mail_valid_net (char *name,DRIVER *drv,char *host,char *mailbox);
long mail_valid_net_parse (char *name,NETMBX *mb);
long mail_valid_net_parse_work (char *name,NETMBX *mb,char *service);
void mail_scan (MAILSTREAM *stream,char *ref,char *pat,char *contents);
void mail_list (MAILSTREAM *stream,char *ref,char *pat);
void mail_lsub (MAILSTREAM *stream,char *ref,char *pat);
long mail_subscribe (MAILSTREAM *stream,char *mailbox);
long mail_unsubscribe (MAILSTREAM *stream,char *mailbox);
long mail_create (MAILSTREAM *stream,char *mailbox);
long mail_delete (MAILSTREAM *stream,char *mailbox);
long mail_rename (MAILSTREAM *stream,char *old,char *newname);
char *mail_utf7_valid (char *mailbox);
long mail_status (MAILSTREAM *stream,char *mbx,long flags);
long mail_status_default (MAILSTREAM *stream,char *mbx,long flags);
MAILSTREAM *mail_open (MAILSTREAM *stream,char *name,long options);
MAILSTREAM *mail_open_work (DRIVER *d,MAILSTREAM *stream,char *name,
			    long options);
MAILSTREAM *mail_close_full (MAILSTREAM *stream,long options);
MAILHANDLE *mail_makehandle (MAILSTREAM *stream);
void mail_free_handle (MAILHANDLE **handle);
MAILSTREAM *mail_stream (MAILHANDLE *handle);

void mail_fetch_fast (MAILSTREAM *stream,char *sequence,long flags);
void mail_fetch_flags (MAILSTREAM *stream,char *sequence,long flags);
void mail_fetch_overview (MAILSTREAM *stream,char *sequence,overview_t ofn);
void mail_fetch_overview_sequence (MAILSTREAM *stream,char *sequence,
				   overview_t ofn);
void mail_fetch_overview_default (MAILSTREAM *stream,overview_t ofn);
ENVELOPE *mail_fetch_structure (MAILSTREAM *stream,unsigned long msgno,
				BODY **body,long flags);
char *mail_fetch_message (MAILSTREAM *stream,unsigned long msgno,
			  unsigned long *len,long flags);
char *mail_fetch_header (MAILSTREAM *stream,unsigned long msgno,char *section,
			 STRINGLIST *lines,unsigned long *len,long flags);
char *mail_fetch_text (MAILSTREAM *stream,unsigned long msgno,char *section,
		       unsigned long *len,long flags);
char *mail_fetch_mime (MAILSTREAM *stream,unsigned long msgno,char *section,
		       unsigned long *len,long flags);
char *mail_fetch_body (MAILSTREAM *stream,unsigned long msgno,char *section,
		       unsigned long *len,long flags);
long mail_partial_text (MAILSTREAM *stream,unsigned long msgno,char *section,
			unsigned long first,unsigned long last,long flags);
long mail_partial_body (MAILSTREAM *stream,unsigned long msgno,char *section,
			unsigned long first,unsigned long last,long flags);
char *mail_fetch_text_return (GETS_DATA *md,SIZEDTEXT *t,unsigned long *len);
char *mail_fetch_string_return (GETS_DATA *md,STRING *bs,unsigned long i,
				unsigned long *len,long flags);
long mail_read (void *stream,unsigned long size,char *buffer);
unsigned long mail_uid (MAILSTREAM *stream,unsigned long msgno);
unsigned long mail_msgno (MAILSTREAM *stream,unsigned long uid);
void mail_fetchfrom (char *s,MAILSTREAM *stream,unsigned long msgno,
		     long length);
void mail_fetchsubject (char *s,MAILSTREAM *stream,unsigned long msgno,
			long length);
MESSAGECACHE *mail_elt (MAILSTREAM *stream,unsigned long msgno);
void mail_flag (MAILSTREAM *stream,char *sequence,char *flag,long flags);
long mail_search_full (MAILSTREAM *stream,char *charset,SEARCHPGM *pgm,
		       long flags);
long mail_search_default (MAILSTREAM *stream,char *charset,SEARCHPGM *pgm,
			  long flags);
long mail_ping (MAILSTREAM *stream);
void mail_check (MAILSTREAM *stream);
long mail_expunge_full (MAILSTREAM *stream,char *sequence,long options);
long mail_copy_full (MAILSTREAM *stream,char *sequence,char *mailbox,
		     long options);
long mail_append_full (MAILSTREAM *stream,char *mailbox,char *flags,char *date,
		       STRING *message);
long mail_append_multiple (MAILSTREAM *stream,char *mailbox,append_t af,
			   void *data);
void mail_gc (MAILSTREAM *stream,long gcflags);
void mail_gc_msg (MESSAGE *msg,long gcflags);
void mail_gc_body (BODY *body);

BODY *mail_body (MAILSTREAM *stream,unsigned long msgno,
		 unsigned char *section);
char *mail_date (char *string,MESSAGECACHE *elt);
char *mail_cdate (char *string,MESSAGECACHE *elt);
long mail_parse_date (MESSAGECACHE *elt,unsigned char *string);
void mail_exists (MAILSTREAM *stream,unsigned long nmsgs);
void mail_recent (MAILSTREAM *stream,unsigned long recent);
void mail_expunged (MAILSTREAM *stream,unsigned long msgno);
void mail_lock (MAILSTREAM *stream);
void mail_unlock (MAILSTREAM *stream);
void mail_debug (MAILSTREAM *stream);
void mail_nodebug (MAILSTREAM *stream);
void mail_dlog (char *string,long flag);
long mail_match_lines (STRINGLIST *lines,STRINGLIST *msglines,long flags);
unsigned long mail_filter (char *text,unsigned long len,STRINGLIST *lines,
			   long flags);
long mail_search_msg (MAILSTREAM *stream,unsigned long msgno,char *section,
		      SEARCHPGM *pgm);
long mail_search_header_text (char *s,STRINGLIST *st);
long mail_search_header (SIZEDTEXT *hdr,STRINGLIST *st);
long mail_search_text (MAILSTREAM *stream,unsigned long msgno,char *section,
		       STRINGLIST *st,long flags);
long mail_search_body (MAILSTREAM *stream,unsigned long msgno,BODY *body,
		       char *prefix,unsigned long section,long flags);
long mail_search_string (SIZEDTEXT *s,char *charset,STRINGLIST **st);
long mail_search_string_work (SIZEDTEXT *s,STRINGLIST **st);
long mail_search_keyword (MAILSTREAM *stream,MESSAGECACHE *elt,STRINGLIST *st,
			  long flag);
long mail_search_addr (ADDRESS *adr,STRINGLIST *st);
char *mail_search_gets (readfn_t f,void *stream,unsigned long size,
			GETS_DATA *md);
SEARCHPGM *mail_criteria (char *criteria);
int mail_criteria_date (unsigned short *date,char **r);
int mail_criteria_string (STRINGLIST **s,char **r);
unsigned short mail_shortdate (unsigned int year,unsigned int month,
			       unsigned int day);
SEARCHSET *mail_parse_set (char *s,char **ret);
SEARCHSET *mail_append_set (SEARCHSET *set,unsigned long msgno);
unsigned long *mail_sort (MAILSTREAM *stream,char *charset,SEARCHPGM *spg,
			  SORTPGM *pgm,long flags);
unsigned long *mail_sort_cache (MAILSTREAM *stream,SORTPGM *pgm,SORTCACHE **sc,
				long flags);
unsigned long *mail_sort_msgs (MAILSTREAM *stream,char *charset,SEARCHPGM *spg,
			       SORTPGM *pgm,long flags);
SORTCACHE **mail_sort_loadcache (MAILSTREAM *stream,SORTPGM *pgm);
unsigned int mail_strip_subject (char *t,char **ret);
char *mail_strip_subject_wsp (char *s);
char *mail_strip_subject_blob (char *s);
int mail_sort_compare (const void *a1,const void *a2);
unsigned long mail_longdate (MESSAGECACHE *elt);
THREADNODE *mail_thread (MAILSTREAM *stream,char *type,char *charset,
			 SEARCHPGM *spg,long flags);
THREADNODE *mail_thread_msgs (MAILSTREAM *stream,char *type,char *charset,
			      SEARCHPGM *spg,long flags,sorter_t sorter);
THREADNODE *mail_thread_orderedsubject (MAILSTREAM *stream,char *charset,
					SEARCHPGM *spg,long flags,
					sorter_t sorter);
THREADNODE *mail_thread_references (MAILSTREAM *stream,char *charset,
				    SEARCHPGM *spg,long flags,
				    sorter_t sorter);
void mail_thread_loadcache (MAILSTREAM *stream,unsigned long uid,OVERVIEW *ov,
			    unsigned long msgno);
char *mail_thread_parse_msgid (char *s,char **ss);
STRINGLIST *mail_thread_parse_references (char *s,long flag);
long mail_thread_check_child (container_t mother,container_t daughter);
container_t mail_thread_prune_dummy (container_t msg,container_t ane);
container_t mail_thread_prune_dummy_work (container_t msg,container_t ane);
THREADNODE *mail_thread_c2node (MAILSTREAM *stream,container_t con,long flags);
THREADNODE *mail_thread_sort (THREADNODE *thr,THREADNODE **tc);
int mail_thread_compare_date (const void *a1,const void *a2);
long mail_sequence (MAILSTREAM *stream,unsigned char *sequence);
long mail_uid_sequence (MAILSTREAM *stream,unsigned char *sequence);
long mail_parse_flags (MAILSTREAM *stream,char *flag,unsigned long *uf);
long mail_usable_network_stream (MAILSTREAM *stream,char *name);

MESSAGECACHE *mail_new_cache_elt (unsigned long msgno);
ENVELOPE *mail_newenvelope (void);
ADDRESS *mail_newaddr (void);
BODY *mail_newbody (void);
BODY *mail_initbody (BODY *body);
PARAMETER *mail_newbody_parameter (void);
PART *mail_newbody_part (void);
MESSAGE *mail_newmsg (void);
STRINGLIST *mail_newstringlist (void);
SEARCHPGM *mail_newsearchpgm (void);
SEARCHHEADER *mail_newsearchheader (char *line,char *text);
SEARCHSET *mail_newsearchset (void);
SEARCHOR *mail_newsearchor (void);
SEARCHPGMLIST *mail_newsearchpgmlist (void);
SORTPGM *mail_newsortpgm (void);
THREADNODE *mail_newthreadnode (SORTCACHE *sc);
ACLLIST *mail_newacllist (void);
QUOTALIST *mail_newquotalist (void);
void mail_free_body (BODY **body);
void mail_free_body_data (BODY *body);
void mail_free_body_parameter (PARAMETER **parameter);
void mail_free_body_part (PART **part);
void mail_free_cache (MAILSTREAM *stream);
void mail_free_elt (MESSAGECACHE **elt);
void mail_free_envelope (ENVELOPE **env);
void mail_free_address (ADDRESS **address);
void mail_free_stringlist (STRINGLIST **string);
void mail_free_searchpgm (SEARCHPGM **pgm);
void mail_free_searchheader (SEARCHHEADER **hdr);
void mail_free_searchset (SEARCHSET **set);
void mail_free_searchor (SEARCHOR **orl);
void mail_free_searchpgmlist (SEARCHPGMLIST **pgl);
void mail_free_namespace (NAMESPACE **n);
void mail_free_sortpgm (SORTPGM **pgm);
void mail_free_threadnode (THREADNODE **thr);
void mail_free_acllist (ACLLIST **al);
void mail_free_quotalist (QUOTALIST **ql);
void auth_link (AUTHENTICATOR *auth);
char *mail_auth (char *mechanism,authresponse_t resp,int argc,char *argv[]);
AUTHENTICATOR *mail_lookup_auth (unsigned long i);
unsigned int mail_lookup_auth_name (char *mechanism,long flags);

NETSTREAM *net_open (NETMBX *mb,NETDRIVER *dv,unsigned long port,
		     NETDRIVER *ssld,char *ssls,unsigned long sslp);
NETSTREAM *net_open_work (NETDRIVER *dv,char *host,char *service,
			  unsigned long port,unsigned long portoverride,
			  unsigned long flags);
NETSTREAM *net_aopen (NETDRIVER *dv,NETMBX *mb,char *service,char *usrbuf);
char *net_getline (NETSTREAM *stream);
				/* stream must be void* for use as readfn_t */
long net_getbuffer (void *stream,unsigned long size,char *buffer);
long net_soutr (NETSTREAM *stream,char *string);
long net_sout (NETSTREAM *stream,char *string,unsigned long size);
void net_close (NETSTREAM *stream);
char *net_host (NETSTREAM *stream);
char *net_remotehost (NETSTREAM *stream);
unsigned long net_port (NETSTREAM *stream);
char *net_localhost (NETSTREAM *stream);

long sm_subscribe (char *mailbox);
long sm_unsubscribe (char *mailbox);
char *sm_read (void **sdb);

void ssl_onceonlyinit (void);
char *ssl_start_tls (char *s);
void ssl_server_init (char *server);

/* Server I/O functions */

int PBIN (void);
char *PSIN (char *s,int n);
long PSINR (char *s,unsigned long n);
int PBOUT (int c);
long INWAIT (long seconds);
int PSOUT (char *s);
int PSOUTR (SIZEDTEXT *s);
int PFLUSH (void);

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