usr/src/libexec/telnetd/ext.h

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)ext.h       5.7 (Berkeley) 3/1/91
 */

/*
 * Telnet server variable declarations
 */
extern char     options[256];
extern char     do_dont_resp[256];
extern char     will_wont_resp[256];
extern int      linemode;       /* linemode on/off */
#ifdef  LINEMODE
extern int      uselinemode;    /* what linemode to use (on/off) */
extern int      editmode;       /* edit modes in use */
extern int      useeditmode;    /* edit modes to use */
extern int      alwayslinemode; /* command line option */
# ifdef KLUDGELINEMODE
extern int      lmodetype;      /* Client support for linemode */
# endif /* KLUDGELINEMODE */
#endif  /* LINEMODE */
extern int      flowmode;       /* current flow control state */
#ifdef DIAGNOSTICS
extern int      diagnostic;     /* telnet diagnostic capabilities */
#endif /* DIAGNOSTICS */
#ifdef BFTPDAEMON
extern int      bftpd;          /* behave as bftp daemon */
#endif /* BFTPDAEMON */
#if     defined(SecurID)
extern int      require_SecurID;
#endif
#if     defined(AUTHENTICATE)
extern int      auth_level;
#endif

extern slcfun   slctab[NSLC + 1];       /* slc mapping table */

char    *terminaltype;

/*
 * I/O data buffers, pointers, and counters.
 */
extern char     ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;

extern char     netibuf[BUFSIZ], *netip;

extern char     netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;
extern char     *neturg;                /* one past last bye of urgent data */

extern int      pcc, ncc;

#if defined(CRAY2) && defined(UNICOS5)
extern int unpcc;  /* characters left unprocessed by CRAY-2 terminal routine */
extern char *unptyip;  /* pointer to remaining characters in buffer */
#endif

extern int      pty, net;
extern char     *line;
extern int      SYNCHing;               /* we are in TELNET SYNCH mode */

#ifndef P
# ifdef __STDC__
#  define P(x)  x
# else
#  define P(x)  ()
# endif
#endif

extern void
        _termstat P((void)),
        add_slc P((int, int, int)),
        check_slc P((void)),
        change_slc P((int, int, int)),
        cleanup P((int)),
        clientstat P((int, int, int)),
        copy_termbuf P((char *, int)),
        deferslc P((void)),
        defer_terminit P((void)),
        do_opt_slc P((unsigned char *, int)),
        doeof P((void)),
        dooption P((int)),
        dontoption P((int)),
        edithost P((char *, char *)),
        fatal P((int, char *)),
        fatalperror P((int, char *)),
        get_slc_defaults P((void)),
        init_env P((void)),
        init_termbuf P((void)),
        interrupt P((void)),
        localstat P((void)),
        netclear P((void)),
        netflush P((void)),
#ifdef DIAGNOSTICS
        printoption P((char *, int)),
        printdata P((char *, char *, int)),
        printsub P((int, unsigned char *, int)),
#endif
        ptyflush P((void)),
        putchr P((int)),
        putf P((char *, char *)),
        recv_ayt P((void)),
        send_do P((int, int)),
        send_dont P((int, int)),
        send_slc P((void)),
        send_status P((void)),
        send_will P((int, int)),
        send_wont P((int, int)),
        sendbrk P((void)),
        sendsusp P((void)),
        set_termbuf P((void)),
        start_login P((char *, int, char *)),
        start_slc P((int)),
#if     defined(AUTHENTICATE)
        start_slave P((char *)),
#else
        start_slave P((char *, int, char *)),
#endif
        suboption P((void)),
        telrcv P((void)),
        ttloop P((void)),
        tty_binaryin P((int)),
        tty_binaryout P((int));

extern int
        end_slc P((unsigned char **)),
        getnpty P((void)),
        getpty P((void)),
        login_tty P((int)),
        spcset P((int, cc_t *, cc_t **)),
        stilloob P((int)),
        terminit P((void)),
        termstat P((void)),
        tty_flowmode P((void)),
        tty_isbinaryin P((void)),
        tty_isbinaryout P((void)),
        tty_iscrnl P((void)),
        tty_isecho P((void)),
        tty_isediting P((void)),
        tty_islitecho P((void)),
        tty_isnewmap P((void)),
        tty_israw P((void)),
        tty_issofttab P((void)),
        tty_istrapsig P((void)),
        tty_linemode P((void));

extern void
        tty_rspeed P((int)),
        tty_setecho P((int)),
        tty_setedit P((int)),
        tty_setlinemode P((int)),
        tty_setlitecho P((int)),
        tty_setsig P((int)),
        tty_setsofttab P((int)),
        tty_tspeed P((int)),
        willoption P((int)),
        wontoption P((int)),
        writenet P((unsigned char *, int));

#if     defined(ENCRYPT)
extern void     (*encrypt_output) P((unsigned char *, int));
extern int      (*decrypt_input) P((int));
extern char     *nclearto;
#endif


/*
 * The following are some clocks used to decide how to interpret
 * the relationship between various variables.
 */

extern struct {
    int
        system,                 /* what the current time is */
        echotoggle,             /* last time user entered echo character */
        modenegotiated,         /* last time operating mode negotiated */
        didnetreceive,          /* last time we read data from network */
        ttypesubopt,            /* ttype subopt is received */
        tspeedsubopt,           /* tspeed subopt is received */
        environsubopt,          /* environ subopt is received */
        xdisplocsubopt,         /* xdisploc subopt is received */
        baseline,               /* time started to do timed action */
        gotDM;                  /* when did we last see a data mark */
} clocks;


#if     defined(CRAY2) && defined(UNICOS5)
extern int      needtermstat;
#endif

#ifndef CRAY
#define DEFAULT_IM      "\r\n\r\n4.3 BSD UNIX (%h) (%t)\r\n\r\r\n\r"
#else
#define DEFAULT_IM      "\r\n\r\nCray UNICOS (%h) (%t)\r\n\r\r\n\r"
#endif