src/bin/network/telnetd/ext.h

   1 /*
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)ext.h       8.2 (Berkeley) 12/15/93
  34  * $FreeBSD: src/contrib/telnet/telnetd/ext.h,v 1.11 2001/11/30 22:28:07 markm Exp $
  35  */
  36
  37 /*
  38  * Telnet server variable declarations
  39  */
  40 extern char     options[256];
  41 extern char     do_dont_resp[256];
  42 extern char     will_wont_resp[256];
  43 extern int      linemode;       /* linemode on/off */
  44 #ifdef  LINEMODE
  45 extern int      uselinemode;    /* what linemode to use (on/off) */
  46 extern int      editmode;       /* edit modes in use */
  47 extern int      useeditmode;    /* edit modes to use */
  48 extern int      alwayslinemode; /* command line option */
  49 extern int      lmodetype;      /* Client support for linemode */
  50 #endif  /* LINEMODE */
  51 extern int      flowmode;       /* current flow control state */
  52 extern int      restartany;     /* restart output on any character state */
  53 #ifdef DIAGNOSTICS
  54 extern int      diagnostic;     /* telnet diagnostic capabilities */
  55 #endif /* DIAGNOSTICS */
  56 #ifdef BFTPDAEMON
  57 extern int      bftpd;          /* behave as bftp daemon */
  58 #endif /* BFTPDAEMON */
  59 #ifdef  AUTHENTICATION
  60 extern int      auth_level;
  61 #endif
  62
  63 extern slcfun   slctab[NSLC + 1];       /* slc mapping table */
  64
  65 char    *terminaltype;
  66
  67 /*
  68  * I/O data buffers, pointers, and counters.
  69  */
  70 extern char     ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
  71
  72 extern char     netibuf[BUFSIZ], *netip;
  73
  74 extern char     netobuf[BUFSIZ], *nfrontp, *nbackp;
  75 extern char     *neturg;                /* one past last bye of urgent data */
  76
  77 extern int      pcc, ncc;
  78
  79 extern int      pty, net;
  80 extern char     line[16];
  81 extern int      SYNCHing;               /* we are in TELNET SYNCH mode */
  82
  83 extern void
  84         _termstat(void),
  85         add_slc(char, char, cc_t),
  86         check_slc(void),
  87         change_slc(char, char, cc_t),
  88         cleanup(int),
  89         clientstat(int, int, int),
  90         copy_termbuf(char *, size_t),
  91         deferslc(void),
  92         defer_terminit(void),
  93         do_opt_slc(unsigned char *, int),
  94         doeof(void),
  95         dooption(int),
  96         dontoption(int),
  97         edithost(char *, char *),
  98         fatal(int, const char *),
  99         fatalperror(int, const char *),
 100         get_slc_defaults(void),
 101         init_env(void),
 102         init_termbuf(void),
 103         interrupt(void),
 104         localstat(void),
 105         flowstat(void),
 106         netclear(void),
 107         netflush(void),
 108 #ifdef DIAGNOSTICS
 109         printoption(const char *, int),
 110         printdata(const char *, char *, int),
 111         printsub(char, unsigned char *, int),
 112 #endif
 113         process_slc(unsigned char, unsigned char, cc_t),
 114         ptyflush(void),
 115         putchr(int),
 116         putf(char *, char *),
 117         recv_ayt(void),
 118         send_do(int, int),
 119         send_dont(int, int),
 120         send_slc(void),
 121         send_status(void),
 122         send_will(int, int),
 123         send_wont(int, int),
 124         sendbrk(void),
 125         sendsusp(void),
 126         set_termbuf(void),
 127         start_login(char *, int, char *),
 128         start_slc(int),
 129 #ifdef  AUTHENTICATION
 130         start_slave(char *),
 131 #else
 132         start_slave(char *, int, char *),
 133 #endif
 134         suboption(void),
 135         telrcv(void),
 136         ttloop(void),
 137         tty_binaryin(int),
 138         tty_binaryout(int);
 139
 140 extern int
 141         end_slc(unsigned char **),
 142         getnpty(void),
 143 #ifndef convex
 144         getpty(int *),
 145 #endif
 146         login_tty(int),
 147         spcset(int, cc_t *, cc_t **),
 148         stilloob(int),
 149         terminit(void),
 150         termstat(void),
 151         tty_flowmode(void),
 152         tty_restartany(void),
 153         tty_isbinaryin(void),
 154         tty_isbinaryout(void),
 155         tty_iscrnl(void),
 156         tty_isecho(void),
 157         tty_isediting(void),
 158         tty_islitecho(void),
 159         tty_isnewmap(void),
 160         tty_israw(void),
 161         tty_issofttab(void),
 162         tty_istrapsig(void),
 163         tty_linemode(void);
 164
 165 extern void
 166         tty_rspeed(int),
 167         tty_setecho(int),
 168         tty_setedit(int),
 169         tty_setlinemode(int),
 170         tty_setlitecho(int),
 171         tty_setsig(int),
 172         tty_setsofttab(int),
 173         tty_tspeed(int),
 174         willoption(int),
 175         wontoption(int);
 176
 177 int     output_data(const char *, ...) __printflike(1, 2);
 178 void    output_datalen(const char *, int);
 179 void    startslave(char *, int, char *);
 180
 181 #ifdef  ENCRYPTION
 182 extern void     (*encrypt_output)(unsigned char *, int);
 183 extern int      (*decrypt_input)(int);
 184 extern char     *nclearto;
 185 #endif  /* ENCRYPTION */
 186
 187
 188 /*
 189  * The following are some clocks used to decide how to interpret
 190  * the relationship between various variables.
 191  */
 192
 193 extern struct {
 194     int
 195         system,                 /* what the current time is */
 196         echotoggle,             /* last time user entered echo character */
 197         modenegotiated,         /* last time operating mode negotiated */
 198         didnetreceive,          /* last time we read data from network */
 199         ttypesubopt,            /* ttype subopt is received */
 200         tspeedsubopt,           /* tspeed subopt is received */
 201         environsubopt,          /* environ subopt is received */
 202         oenvironsubopt,         /* old environ subopt is received */
 203         xdisplocsubopt,         /* xdisploc subopt is received */
 204         baseline,               /* time started to do timed action */
 205         gotDM;                  /* when did we last see a data mark */
 206 } clocks;
 207
 208 #ifndef DEFAULT_IM
 209 #   ifdef ultrix
 210 #    define DEFAULT_IM  "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r"
 211 #   else
 212 #    ifdef __FreeBSD__
 213 #     define DEFAULT_IM  "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r"
 214 #    else
 215 #     ifdef __HAIKU__
 216 #      define DEFAULT_IM        "\r\n\r\nHaiku (%h) (%t)\r\n\r\r\n\r"
 217 #     else
 218 #      define DEFAULT_IM        "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r"
 219 #     endif
 220 #    endif
 221 #   endif
 222 #endif