appl/telnet/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  */
  35
  36 /* $Id$ */
  37
  38 #ifndef __EXT_H__
  39 #define __EXT_H__
  40
  41 /*
  42  * Telnet server variable declarations
  43  */
  44 extern char     options[256];
  45 extern char     do_dont_resp[256];
  46 extern char     will_wont_resp[256];
  47 extern int      flowmode;       /* current flow control state */
  48 extern int      restartany;     /* restart output on any character state */
  49 #ifdef DIAGNOSTICS
  50 extern int      diagnostic;     /* telnet diagnostic capabilities */
  51 #endif /* DIAGNOSTICS */
  52 extern int      require_otp;
  53 #ifdef AUTHENTICATION
  54 extern int      auth_level;
  55 #endif
  56 extern const char *new_login;
  57
  58 extern slcfun   slctab[NSLC + 1];       /* slc mapping table */
  59
  60 extern char     *terminaltype;
  61
  62 /*
  63  * I/O data buffers, pointers, and counters.
  64  */
  65 extern char     ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
  66
  67 extern char     netibuf[BUFSIZ], *netip;
  68
  69 extern char     netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;
  70 extern char     *neturg;                /* one past last bye of urgent data */
  71
  72 extern int      pcc, ncc;
  73
  74 extern int      ourpty, net;
  75 extern char     *line;
  76 extern int      SYNCHing;               /* we are in TELNET SYNCH mode */
  77
  78 int telnet_net_write (unsigned char *str, int len);
  79 void net_encrypt (void);
  80 int telnet_spin (void);
  81 char *telnet_getenv (char *val);
  82 char *telnet_gets (char *prompt, char *result, int length, int echo);
  83 void get_slc_defaults (void);
  84 void telrcv (void);
  85 void send_do (int option, int init);
  86 void willoption (int option);
  87 void send_dont (int option, int init);
  88 void wontoption (int option);
  89 void send_will (int option, int init);
  90 void dooption (int option);
  91 void send_wont (int option, int init);
  92 void dontoption (int option);
  93 void suboption (void);
  94 void doclientstat (void);
  95 void send_status (void);
  96 void init_termbuf (void);
  97 void set_termbuf (void);
  98 int spcset (int func, cc_t *valp, cc_t **valpp);
  99 void set_utid (void);
 100 int getpty (int *ptynum);
 101 int tty_isecho (void);
 102 int tty_flowmode (void);
 103 int tty_restartany (void);
 104 void tty_setecho (int on);
 105 int tty_israw (void);
 106 void tty_binaryin (int on);
 107 void tty_binaryout (int on);
 108 int tty_isbinaryin (void);
 109 int tty_isbinaryout (void);
 110 int tty_issofttab (void);
 111 void tty_setsofttab (int on);
 112 int tty_islitecho (void);
 113 void tty_setlitecho (int on);
 114 int tty_iscrnl (void);
 115 void tty_tspeed (int val);
 116 void tty_rspeed (int val);
 117 void getptyslave (void);
 118 int cleanopen (char *line);
 119 void startslave (char *host, int autologin, char *autoname);
 120 void init_env (void);
 121 void start_login (char *host, int autologin, char *name);
 122 void cleanup (int sig);
 123 int main (int argc, char **argv);
 124 void usage (void);
 125 int getterminaltype (char *name, size_t);
 126 void _gettermname (void);
 127 int terminaltypeok (char *s);
 128 void doit (struct sockaddr_in *who);
 129 void my_telnet (int f, int p, char*, int, char*);
 130 void interrupt (void);
 131 void sendbrk (void);
 132 void sendsusp (void);
 133 void recv_ayt (void);
 134 void doeof (void);
 135 void flowstat (void);
 136 void clientstat (int code, int parm1, int parm2);
 137 void ttloop (void);
 138 int stilloob (int s);
 139 void ptyflush (void);
 140 char *nextitem (char *current);
 141 void netclear (void);
 142 void netflush (void);
 143 void writenet (unsigned char *ptr, int len);
 144 void fatal (int f, char *msg);
 145 void fatalperror (int f, const char *msg);
 146 void edithost (char *pat, char *host);
 147 void putstr (char *s);
 148 void putchr (int cc);
 149 void putf (char *cp, char *where);
 150 void printoption (char *fmt, int option);
 151 void printsub (int direction, unsigned char *pointer, int length);
 152 void printdata (char *tag, char *ptr, int cnt);
 153 int login_tty(int t);
 154
 155 #ifdef ENCRYPTION
 156 extern void     (*encrypt_output) (unsigned char *, int);
 157 extern int      (*decrypt_input) (int);
 158 extern char     *nclearto;
 159 #endif
 160
 161
 162 /*
 163  * The following are some clocks used to decide how to interpret
 164  * the relationship between various variables.
 165  */
 166
 167 struct clocks_t{
 168     int
 169         system,                 /* what the current time is */
 170         echotoggle,             /* last time user entered echo character */
 171         modenegotiated,         /* last time operating mode negotiated */
 172         didnetreceive,          /* last time we read data from network */
 173         ttypesubopt,            /* ttype subopt is received */
 174         tspeedsubopt,           /* tspeed subopt is received */
 175         environsubopt,          /* environ subopt is received */
 176         oenvironsubopt,         /* old environ subopt is received */
 177         xdisplocsubopt,         /* xdisploc subopt is received */
 178         baseline,               /* time started to do timed action */
 179         gotDM;                  /* when did we last see a data mark */
 180 };
 181 extern struct clocks_t clocks;
 182
 183 extern int log_unauth;
 184 extern int no_warn;
 185
 186 #ifdef STREAMSPTY
 187 extern int really_stream;
 188 #endif
 189
 190 #ifndef USE_IM
 191 # ifdef CRAY
 192 #  define USE_IM "Cray UNICOS (%h) (%t)"
 193 # endif
 194 # ifdef _AIX
 195 #  define USE_IM "%s %v.%r (%h) (%t)"
 196 # endif
 197 # ifndef USE_IM
 198 #  define USE_IM "%s %r (%h) (%t)"
 199 # endif
 200 #endif
 201
 202 #define DEFAULT_IM "\r\n\r\n" USE_IM "\r\n\r\n\r\n"
 203
 204 #endif /* __EXT_H__ */