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 * $FreeBSD: src/crypto/telnet/telnetd/ext.h,v 1.2.8.4 2002/04/13 10:59:08 markm Exp $ 31 * $DragonFly: src/crypto/telnet/telnetd/ext.h,v 1.3 2006/01/17 23:50:35 dillon Exp $ 32 */ 33 34 /* 35 * Telnet server variable declarations 36 */ 37 extern char options[256]; 38 extern char do_dont_resp[256]; 39 extern char will_wont_resp[256]; 40 extern int linemode; /* linemode on/off */ 41 #ifdef LINEMODE 42 extern int uselinemode; /* what linemode to use (on/off) */ 43 extern int editmode; /* edit modes in use */ 44 extern int useeditmode; /* edit modes to use */ 45 extern int alwayslinemode; /* command line option */ 46 extern int lmodetype; /* Client support for linemode */ 47 #endif /* LINEMODE */ 48 extern int flowmode; /* current flow control state */ 49 extern int restartany; /* restart output on any character state */ 50 #ifdef DIAGNOSTICS 51 extern int diagnostic; /* telnet diagnostic capabilities */ 52 #endif /* DIAGNOSTICS */ 53 #ifdef BFTPDAEMON 54 extern int bftpd; /* behave as bftp daemon */ 55 #endif /* BFTPDAEMON */ 56 #ifdef AUTHENTICATION 57 extern int auth_level; 58 #endif 59 60 extern slcfun slctab[NSLC + 1]; /* slc mapping table */ 61 62 #define TERMINAL_TYPE_SIZE 41 /* allocated space for terminaltype */ 63 64 char *terminaltype; 65 66 /* 67 * I/O data buffers, pointers, and counters. 68 */ 69 extern char ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp; 70 71 extern char netibuf[BUFSIZ], *netip; 72 73 extern char netobuf[BUFSIZ], *nfrontp, *nbackp; 74 extern char *neturg; /* one past last bye of urgent data */ 75 76 extern int pcc, ncc; 77 78 extern int pty, net; 79 extern char line[16]; 80 extern int SYNCHing; /* we are in TELNET SYNCH mode */ 81 82 extern void 83 _termstat(void), 84 add_slc(char, char, cc_t), 85 check_slc(void), 86 change_slc(char, char, cc_t), 87 cleanup(int), 88 clientstat(int, int, int), 89 copy_termbuf(char *, size_t), 90 deferslc(void), 91 defer_terminit(void), 92 do_opt_slc(unsigned char *, int), 93 doeof(void), 94 dooption(int), 95 dontoption(int), 96 edithost(char *, char *), 97 fatal(int, const char *), 98 fatalperror(int, const char *), 99 get_slc_defaults(void), 100 init_env(void), 101 init_termbuf(void), 102 interrupt(void), 103 localstat(void), 104 flowstat(void), 105 netclear(void), 106 netflush(void), 107 #ifdef DIAGNOSTICS 108 printoption(const char *, int), 109 printdata(const char *, char *, int), 110 printsub(char, unsigned char *, int), 111 #endif 112 process_slc(unsigned char, unsigned char, cc_t), 113 ptyflush(void), 114 putchr(int), 115 putf(char *, char *), 116 recv_ayt(void), 117 send_do(int, int), 118 send_dont(int, int), 119 send_slc(void), 120 send_status(void), 121 send_will(int, int), 122 send_wont(int, int), 123 sendbrk(void), 124 sendsusp(void), 125 set_termbuf(void), 126 start_login(char *, int, char *), 127 start_slc(int), 128 #ifdef AUTHENTICATION 129 start_slave(char *), 130 #else 131 start_slave(char *, int, char *), 132 #endif 133 suboption(void), 134 telrcv(void), 135 ttloop(void), 136 tty_binaryin(int), 137 tty_binaryout(int); 138 139 extern int 140 end_slc(unsigned char **), 141 getnpty(void), 142 #ifndef convex 143 getpty(int *), 144 #endif 145 login_tty(int), 146 spcset(int, cc_t *, cc_t **), 147 stilloob(int), 148 terminit(void), 149 termstat(void), 150 tty_flowmode(void), 151 tty_restartany(void), 152 tty_isbinaryin(void), 153 tty_isbinaryout(void), 154 tty_iscrnl(void), 155 tty_isecho(void), 156 tty_isediting(void), 157 tty_islitecho(void), 158 tty_isnewmap(void), 159 tty_israw(void), 160 tty_issofttab(void), 161 tty_istrapsig(void), 162 tty_linemode(void); 163 164 extern void 165 tty_rspeed(int), 166 tty_setecho(int), 167 tty_setedit(int), 168 tty_setlinemode(int), 169 tty_setlitecho(int), 170 tty_setsig(int), 171 tty_setsofttab(int), 172 tty_tspeed(int), 173 willoption(int), 174 wontoption(int); 175 176 int output_data(const char *, ...) __printflike(1, 2); 177 void output_datalen(const char *, int); 178 void startslave(char *, int, char *); 179 180 #ifdef ENCRYPTION 181 extern void (*encrypt_output)(unsigned char *, int); 182 extern int (*decrypt_input)(int); 183 extern char *nclearto; 184 #endif /* ENCRYPTION */ 185 186 187 /* 188 * The following are some clocks used to decide how to interpret 189 * the relationship between various variables. 190 */ 191 192 extern struct { 193 int 194 system, /* what the current time is */ 195 echotoggle, /* last time user entered echo character */ 196 modenegotiated, /* last time operating mode negotiated */ 197 didnetreceive, /* last time we read data from network */ 198 ttypesubopt, /* ttype subopt is received */ 199 tspeedsubopt, /* tspeed subopt is received */ 200 environsubopt, /* environ subopt is received */ 201 oenvironsubopt, /* old environ subopt is received */ 202 xdisplocsubopt, /* xdisploc subopt is received */ 203 baseline, /* time started to do timed action */ 204 gotDM; /* when did we last see a data mark */ 205 } clocks; 206 207 #ifndef DEFAULT_IM 208 # ifdef ultrix 209 # define DEFAULT_IM "\r\n\r\nULTRIX (%h) (%t)\r\n\r\r\n\r" 210 # else 211 # if defined(__DragonFly__) 212 # define DEFAULT_IM "\r\n\r\nDragonFly (%h) (%t)\r\n\r\r\n\r" 213 # elif defined(__FreeBSD__) 214 # define DEFAULT_IM "\r\n\r\nFreeBSD (%h) (%t)\r\n\r\r\n\r" 215 # else 216 # define DEFAULT_IM "\r\n\r\n4.4 BSD UNIX (%h) (%t)\r\n\r\r\n\r" 217 # endif 218 # endif 219 #endif 220