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 * @(#)defs.h 8.1 (Berkeley) 6/4/93 34 * $FreeBSD: src/contrib/telnet/telnetd/defs.h,v 1.2 2001/08/29 14:16:15 markm Exp $ 35 */ 36 37/* 38 * Telnet server defines 39 */ 40#include <sys/types.h> 41#include <sys/param.h> 42 43#ifndef BSD 44# define BSD 43 45#endif 46 47#if defined(PRINTOPTIONS) && defined(DIAGNOSTICS) 48#define TELOPTS 49#define TELCMDS 50#define SLC_NAMES 51#endif 52 53#if defined(SYSV_TERMIO) && !defined(USE_TERMIO) 54# define USE_TERMIO 55#endif 56 57#include <sys/socket.h> 58#include <sys/wait.h> 59#include <fcntl.h> 60//#include <sys/file.h> 61#include <sys/stat.h> 62#include <sys/time.h> 63#ifndef FILIO_H 64#include <sys/ioctl.h> 65#else 66#include <sys/filio.h> 67#endif 68 69#include <netinet/in.h> 70 71#include <arpa/telnet.h> 72 73#include <stdio.h> 74#ifdef __STDC__ 75#include <stdlib.h> 76#endif 77#include <signal.h> 78#include <errno.h> 79#include <netdb.h> 80#include <syslog.h> 81#ifndef LOG_DAEMON 82#define LOG_DAEMON 0 83#endif 84#ifndef LOG_ODELAY 85#define LOG_ODELAY 0 86#endif 87#include <ctype.h> 88#ifndef NO_STRING_H 89#include <string.h> 90#else 91#include <strings.h> 92#endif 93 94#ifndef USE_TERMIO 95#include <sgtty.h> 96#else 97# ifdef SYSV_TERMIO 98# include <termio.h> 99# else 100# include <termios.h> 101# endif 102#endif 103#if !defined(USE_TERMIO) || defined(NO_CC_T) 104typedef unsigned char cc_t; 105#endif 106 107#ifdef __STDC__ 108#include <unistd.h> 109#endif 110 111#ifndef _POSIX_VDISABLE 112# ifdef VDISABLE 113# define _POSIX_VDISABLE VDISABLE 114# else 115# define _POSIX_VDISABLE ((unsigned char)'\377') 116# endif 117#endif 118 119#if !defined(TIOCSCTTY) && defined(TCSETCTTY) 120# define TIOCSCTTY TCSETCTTY 121#endif 122 123#ifndef FD_SET 124#ifndef HAVE_fd_set 125typedef struct fd_set { int fds_bits[1]; } fd_set; 126#endif 127 128#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) 129#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) 130#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) 131#define FD_ZERO(p) ((p)->fds_bits[0] = 0) 132#endif /* FD_SET */ 133 134/* 135 * I/O data buffers defines 136 */ 137#define NETSLOP 64 138 139#define NIACCUM(c) { *netip++ = c; \ 140 ncc++; \ 141 } 142 143/* clock manipulations */ 144#define settimer(x) (clocks.x = ++clocks.system) 145#define sequenceIs(x,y) (clocks.x < clocks.y) 146 147/* 148 * Linemode support states, in decreasing order of importance 149 */ 150#define REAL_LINEMODE 0x04 151#define KLUDGE_OK 0x03 152#define NO_AUTOKLUDGE 0x02 153#define KLUDGE_LINEMODE 0x01 154#define NO_LINEMODE 0x00 155 156/* 157 * Structures of information for each special character function. 158 */ 159typedef struct { 160 unsigned char flag; /* the flags for this function */ 161 cc_t val; /* the value of the special character */ 162} slcent, *Slcent; 163 164typedef struct { 165 slcent defset; /* the default settings */ 166 slcent current; /* the current settings */ 167 cc_t *sptr; /* a pointer to the char in */ 168 /* system data structures */ 169} slcfun, *Slcfun; 170 171#ifdef DIAGNOSTICS 172/* 173 * Diagnostics capabilities 174 */ 175#define TD_REPORT 0x01 /* Report operations to client */ 176#define TD_EXERCISE 0x02 /* Exercise client's implementation */ 177#define TD_NETDATA 0x04 /* Display received data stream */ 178#define TD_PTYDATA 0x08 /* Display data passed to pty */ 179#define TD_OPTIONS 0x10 /* Report just telnet options */ 180#endif /* DIAGNOSTICS */ 181 182/* 183 * We keep track of each side of the option negotiation. 184 */ 185 186#define MY_STATE_WILL 0x01 187#define MY_WANT_STATE_WILL 0x02 188#define MY_STATE_DO 0x04 189#define MY_WANT_STATE_DO 0x08 190 191/* 192 * Macros to check the current state of things 193 */ 194 195#define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 196#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 197#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 198#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 199 200#define my_state_is_dont(opt) (!my_state_is_do(opt)) 201#define my_state_is_wont(opt) (!my_state_is_will(opt)) 202#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 203#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 204 205#define set_my_state_do(opt) (options[opt] |= MY_STATE_DO) 206#define set_my_state_will(opt) (options[opt] |= MY_STATE_WILL) 207#define set_my_want_state_do(opt) (options[opt] |= MY_WANT_STATE_DO) 208#define set_my_want_state_will(opt) (options[opt] |= MY_WANT_STATE_WILL) 209 210#define set_my_state_dont(opt) (options[opt] &= ~MY_STATE_DO) 211#define set_my_state_wont(opt) (options[opt] &= ~MY_STATE_WILL) 212#define set_my_want_state_dont(opt) (options[opt] &= ~MY_WANT_STATE_DO) 213#define set_my_want_state_wont(opt) (options[opt] &= ~MY_WANT_STATE_WILL) 214 215/* 216 * Tricky code here. What we want to know is if the MY_STATE_WILL 217 * and MY_WANT_STATE_WILL bits have the same value. Since the two 218 * bits are adjacent, a little arithmatic will show that by adding 219 * in the lower bit, the upper bit will be set if the two bits were 220 * different, and clear if they were the same. 221 */ 222#define my_will_wont_is_changing(opt) \ 223 ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL) 224 225#define my_do_dont_is_changing(opt) \ 226 ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO) 227 228/* 229 * Make everything symetrical 230 */ 231 232#define HIS_STATE_WILL MY_STATE_DO 233#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 234#define HIS_STATE_DO MY_STATE_WILL 235#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 236 237#define his_state_is_do my_state_is_will 238#define his_state_is_will my_state_is_do 239#define his_want_state_is_do my_want_state_is_will 240#define his_want_state_is_will my_want_state_is_do 241 242#define his_state_is_dont my_state_is_wont 243#define his_state_is_wont my_state_is_dont 244#define his_want_state_is_dont my_want_state_is_wont 245#define his_want_state_is_wont my_want_state_is_dont 246 247#define set_his_state_do set_my_state_will 248#define set_his_state_will set_my_state_do 249#define set_his_want_state_do set_my_want_state_will 250#define set_his_want_state_will set_my_want_state_do 251 252#define set_his_state_dont set_my_state_wont 253#define set_his_state_wont set_my_state_dont 254#define set_his_want_state_dont set_my_want_state_wont 255#define set_his_want_state_wont set_my_want_state_dont 256 257#define his_will_wont_is_changing my_do_dont_is_changing 258#define his_do_dont_is_changing my_will_wont_is_changing 259