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) 104 typedef 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 125 typedef 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 */ 159 typedef struct { 160 unsigned char flag; /* the flags for this function */ 161 cc_t val; /* the value of the special character */ 162 } slcent, *Slcent; 163 164 typedef 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