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. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)ext.h 8.2 (Berkeley) 12/15/93 30 */ 31 32 /* $KTH: ext.h,v 1.22 2001/04/24 23:12:11 assar Exp $ */ 33 34 #ifndef __EXT_H__ 35 #define __EXT_H__ 36 37 #include <arpa/telnet.h> 38 39 /* 40 * Telnet server variable declarations 41 */ 42 extern char options[256]; 43 extern char do_dont_resp[256]; 44 extern char will_wont_resp[256]; 45 extern int flowmode; /* current flow control state */ 46 extern int restartany; /* restart output on any character state */ 47 #ifdef DIAGNOSTICS 48 extern int diagnostic; /* telnet diagnostic capabilities */ 49 #endif /* DIAGNOSTICS */ 50 extern int require_otp; 51 #ifdef AUTHENTICATION 52 extern int auth_level; 53 #endif 54 extern char *new_login; 55 56 extern slcfun slctab[NSLC + 1]; /* slc mapping table */ 57 58 extern char terminaltype[41]; 59 60 /* 61 * I/O data buffers, pointers, and counters. 62 */ 63 extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; 64 65 extern char netibuf[BUFSIZ], *netip; 66 67 extern char netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp; 68 extern char *neturg; /* one past last bye of urgent data */ 69 70 extern int pcc, ncc; 71 72 extern int ourpty, net; 73 extern char *line; 74 extern int SYNCHing; /* we are in TELNET SYNCH mode */ 75 76 int telnet_net_write (unsigned char *str, int len); 77 void net_encrypt (void); 78 int telnet_spin (void); 79 char *telnet_getenv (const char *val); 80 char *telnet_gets (char *prompt, char *result, int length, int echo); 81 void get_slc_defaults (void); 82 void telrcv (void); 83 void send_do (int option, int init); 84 void willoption (int option); 85 void send_dont (int option, int init); 86 void wontoption (int option); 87 void send_will (int option, int init); 88 void dooption (int option); 89 void send_wont (int option, int init); 90 void dontoption (int option); 91 void suboption (void); 92 void doclientstat (void); 93 void send_status (void); 94 void init_termbuf (void); 95 void set_termbuf (void); 96 int spcset (int func, cc_t *valp, cc_t **valpp); 97 void set_utid (void); 98 int getpty (int *ptynum); 99 int tty_isecho (void); 100 int tty_flowmode (void); 101 int tty_restartany (void); 102 void tty_setecho (int on); 103 int tty_israw (void); 104 void tty_binaryin (int on); 105 void tty_binaryout (int on); 106 int tty_isbinaryin (void); 107 int tty_isbinaryout (void); 108 int tty_issofttab (void); 109 void tty_setsofttab (int on); 110 int tty_islitecho (void); 111 void tty_setlitecho (int on); 112 int tty_iscrnl (void); 113 void tty_tspeed (int val); 114 void tty_rspeed (int val); 115 void getptyslave (void); 116 int cleanopen (char *line); 117 void startslave (const char *host, const char *, int autologin, char *autoname); 118 void init_env (void); 119 void start_login (const char *host, int autologin, char *name); 120 void cleanup (int sig); 121 int main (int argc, char **argv); 122 int getterminaltype (char *name, size_t); 123 void _gettermname (void); 124 int terminaltypeok (char *s); 125 void my_telnet (int f, int p, const char*, const char *, int, char*); 126 void interrupt (void); 127 void sendbrk (void); 128 void sendsusp (void); 129 void recv_ayt (void); 130 void doeof (void); 131 void flowstat (void); 132 void clientstat (int code, int parm1, int parm2); 133 int ttloop (void); 134 int stilloob (int s); 135 void ptyflush (void); 136 char *nextitem (char *current); 137 void netclear (void); 138 void netflush (void); 139 void writenet (unsigned char *ptr, int len); 140 void fatal (int f, char *msg); 141 void fatalperror (int f, const char *msg); 142 void fatalperror_errno (int f, const char *msg, int error); 143 void edithost (char *pat, char *host); 144 void putstr (char *s); 145 void putchr (int cc); 146 void putf (char *cp, char *where); 147 void printoption (char *fmt, int option); 148 void printsub (int direction, unsigned char *pointer, int length); 149 void printdata (char *tag, char *ptr, int cnt); 150 int login_tty(int t); 151 152 #ifdef ENCRYPTION 153 extern void (*encrypt_output) (unsigned char *, int); 154 extern int (*decrypt_input) (int); 155 extern char *nclearto; 156 #endif 157 158 159 /* 160 * The following are some clocks used to decide how to interpret 161 * the relationship between various variables. 162 */ 163 164 struct clocks_t{ 165 int 166 system, /* what the current time is */ 167 echotoggle, /* last time user entered echo character */ 168 modenegotiated, /* last time operating mode negotiated */ 169 didnetreceive, /* last time we read data from network */ 170 ttypesubopt, /* ttype subopt is received */ 171 tspeedsubopt, /* tspeed subopt is received */ 172 environsubopt, /* environ subopt is received */ 173 oenvironsubopt, /* old environ subopt is received */ 174 xdisplocsubopt, /* xdisploc subopt is received */ 175 baseline, /* time started to do timed action */ 176 gotDM; /* when did we last see a data mark */ 177 }; 178 extern struct clocks_t clocks; 179 180 extern int log_unauth; 181 extern int no_warn; 182 183 #ifdef STREAMSPTY 184 extern int really_stream; 185 #endif 186 187 #ifndef USE_IM 188 # ifdef CRAY 189 # define USE_IM "Cray UNICOS (%h) (%t)" 190 # endif 191 # ifdef _AIX 192 # define USE_IM "%s %v.%r (%h) (%t)" 193 # endif 194 # ifndef USE_IM 195 # define USE_IM "%s %r (%h) (%t)" 196 # endif 197 #endif 198 199 #define DEFAULT_IM "\r\n\r\n" USE_IM "\r\n\r\n\r\n" 200 201 #endif /* __EXT_H__ */ 202