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 */ 35 36 /* 37 * Telnet server defines 38 */ 39 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/ioctl.h> 42 43 #ifndef BSD 44 # define BSD 43 45 #endif 46 47 #if defined(CRAY) && !defined(LINEMODE) 48 # define SYSV_TERMIO 49 # define LINEMODE 50 # define KLUDGELINEMODE 51 # define DIAGNOSTICS 52 # if defined(UNICOS50) && !defined(UNICOS5) 53 # define UNICOS5 54 # endif 55 # if !defined(UNICOS5) 56 # define BFTPDAEMON 57 # define HAS_IP_TOS 58 # endif 59 #endif /* CRAY */ 60 #if defined(UNICOS5) && !defined(NO_SETSID) 61 # define NO_SETSID 62 #endif 63 64 #if defined(PRINTOPTIONS) && defined(DIAGNOSTICS) 65 #define TELOPTS 66 #define TELCMDS 67 #define SLC_NAMES 68 #endif 69 70 #if defined(SYSV_TERMIO) && !defined(USE_TERMIO) 71 # define USE_TERMIO 72 #endif 73 74 #include <sys/socket.h> 75 #ifndef CRAY 76 #include <sys/wait.h> 77 #endif /* CRAY */ 78 #include <fcntl.h> 79 #include <sys/file.h> 80 #include <sys/stat.h> 81 82 #if TIME_WITH_SYS_TIME 83 # include <sys/time.h> 84 # include <time.h> 85 #else 86 # if HAVE_SYS_TIME_H 87 # include <sys/time.h> 88 # else 89 # include <time.h> 90 # endif 91 #endif 92 93 #include <sys/ioctl.h> 94 #ifdef HAVE_SYS_FILIO_H 95 #include <sys/filio.h> 96 #endif 97 98 #include <netinet/in.h> 99 100 #include <arpa/telnet.h> 101 102 /* for socklen() */ 103 #include "socket-utils.h" 104 105 #include <stdio.h> 106 #ifdef __STDC__ 107 #include <stdlib.h> 108 #endif 109 #include <signal.h> 110 #include <errno.h> 111 #include <netdb.h> 112 #include <syslog.h> 113 #ifndef LOG_DAEMON 114 #define LOG_DAEMON 0 115 #endif 116 #ifndef LOG_ODELAY 117 #define LOG_ODELAY 0 118 #endif 119 #include <ctype.h> 120 #ifndef HAVE_STRING_H 121 #include <strings.h> 122 #else 123 #include <string.h> 124 #endif 125 126 #ifndef USE_TERMIO 127 #include <sgtty.h> 128 #else 129 # ifdef SYSV_TERMIO 130 # include <termio.h> 131 # else 132 # include <termios.h> 133 # endif 134 #endif 135 #if !defined(USE_TERMIO) || defined(NO_CC_T) 136 typedef unsigned char cc_t; 137 #endif 138 139 #ifdef __STDC__ 140 #include <unistd.h> 141 #endif 142 143 #ifndef _POSIX_VDISABLE 144 # ifdef VDISABLE 145 # define _POSIX_VDISABLE VDISABLE 146 # else 147 # define _POSIX_VDISABLE ((unsigned char)'\377') 148 # endif 149 #endif 150 151 152 #ifdef CRAY 153 # ifdef CRAY1 154 # include <sys/pty.h> 155 # ifndef FD_ZERO 156 # include <sys/select.h> 157 # endif /* FD_ZERO */ 158 # endif /* CRAY1 */ 159 160 #ifdef HAVE_MEMORY_H 161 #include <memory.h> 162 #endif 163 #endif /* CRAY */ 164 165 #ifdef __hpux 166 #include <sys/ptyio.h> 167 #endif 168 169 #if defined(__alpha) && defined(STREAMSPTY) 170 #undef STREAMSPTY 171 #endif 172 173 #if !defined(TIOCSCTTY) && defined(TCSETCTTY) 174 # define TIOCSCTTY TCSETCTTY 175 #endif 176 177 #ifndef FD_SET 178 #ifndef HAVE_fd_set 179 typedef struct fd_set { int fds_bits[1]; } fd_set; 180 #endif 181 182 #define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n))) 183 #define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n))) 184 #define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n))) 185 #define FD_ZERO(p) ((p)->fds_bits[0] = 0) 186 #endif /* FD_SET */ 187 188 /* 189 * I/O data buffers defines 190 */ 191 #define NETSLOP 64 192 #ifdef CRAY 193 #undef BUFSIZ 194 #define BUFSIZ 2048 195 #endif 196 197 #define NIACCUM(c) { *netip++ = c; \ 198 ncc++; \ 199 } 200 201 /* clock manipulations */ 202 #define settimer(x) (clocks.x = ++clocks.system) 203 #define sequenceIs(x,y) (clocks.x < clocks.y) 204 205 /* 206 * Linemode support states, in decreasing order of importance 207 */ 208 #define REAL_LINEMODE 0x04 209 #define KLUDGE_OK 0x03 210 #define NO_AUTOKLUDGE 0x02 211 #define KLUDGE_LINEMODE 0x01 212 #define NO_LINEMODE 0x00 213 214 /* 215 * Structures of information for each special character function. 216 */ 217 typedef struct { 218 unsigned char flag; /* the flags for this function */ 219 cc_t val; /* the value of the special character */ 220 } slcent, *Slcent; 221 222 typedef struct { 223 slcent defset; /* the default settings */ 224 slcent current; /* the current settings */ 225 cc_t *sptr; /* a pointer to the char in */ 226 /* system data structures */ 227 } slcfun, *Slcfun; 228 229 #ifdef DIAGNOSTICS 230 /* 231 * Diagnostics capabilities 232 */ 233 #define TD_REPORT 0x01 /* Report operations to client */ 234 #define TD_EXERCISE 0x02 /* Exercise client's implementation */ 235 #define TD_NETDATA 0x04 /* Display received data stream */ 236 #define TD_PTYDATA 0x08 /* Display data passed to pty */ 237 #define TD_OPTIONS 0x10 /* Report just telnet options */ 238 #endif /* DIAGNOSTICS */ 239 240 /* 241 * We keep track of each side of the option negotiation. 242 */ 243 244 #define MY_STATE_WILL 0x01 245 #define MY_WANT_STATE_WILL 0x02 246 #define MY_STATE_DO 0x04 247 #define MY_WANT_STATE_DO 0x08 248 249 /* 250 * Macros to check the current state of things 251 */ 252 253 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 254 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 255 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 256 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 257 258 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 259 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 260 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 261 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 262 263 #define set_my_state_do(opt) (options[opt] |= MY_STATE_DO) 264 #define set_my_state_will(opt) (options[opt] |= MY_STATE_WILL) 265 #define set_my_want_state_do(opt) (options[opt] |= MY_WANT_STATE_DO) 266 #define set_my_want_state_will(opt) (options[opt] |= MY_WANT_STATE_WILL) 267 268 #define set_my_state_dont(opt) (options[opt] &= ~MY_STATE_DO) 269 #define set_my_state_wont(opt) (options[opt] &= ~MY_STATE_WILL) 270 #define set_my_want_state_dont(opt) (options[opt] &= ~MY_WANT_STATE_DO) 271 #define set_my_want_state_wont(opt) (options[opt] &= ~MY_WANT_STATE_WILL) 272 273 /* 274 * Tricky code here. What we want to know is if the MY_STATE_WILL 275 * and MY_WANT_STATE_WILL bits have the same value. Since the two 276 * bits are adjacent, a little arithmatic will show that by adding 277 * in the lower bit, the upper bit will be set if the two bits were 278 * different, and clear if they were the same. 279 */ 280 #define my_will_wont_is_changing(opt) \ 281 ((options[opt]+MY_STATE_WILL) & MY_WANT_STATE_WILL) 282 283 #define my_do_dont_is_changing(opt) \ 284 ((options[opt]+MY_STATE_DO) & MY_WANT_STATE_DO) 285 286 /* 287 * Make everything symetrical 288 */ 289 290 #define HIS_STATE_WILL MY_STATE_DO 291 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 292 #define HIS_STATE_DO MY_STATE_WILL 293 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 294 295 #define his_state_is_do my_state_is_will 296 #define his_state_is_will my_state_is_do 297 #define his_want_state_is_do my_want_state_is_will 298 #define his_want_state_is_will my_want_state_is_do 299 300 #define his_state_is_dont my_state_is_wont 301 #define his_state_is_wont my_state_is_dont 302 #define his_want_state_is_dont my_want_state_is_wont 303 #define his_want_state_is_wont my_want_state_is_dont 304 305 #define set_his_state_do set_my_state_will 306 #define set_his_state_will set_my_state_do 307 #define set_his_want_state_do set_my_want_state_will 308 #define set_his_want_state_will set_my_want_state_do 309 310 #define set_his_state_dont set_my_state_wont 311 #define set_his_state_wont set_my_state_dont 312 #define set_his_want_state_dont set_my_want_state_wont 313 #define set_his_want_state_wont set_my_want_state_dont 314 315 #define his_will_wont_is_changing my_do_dont_is_changing 316 #define his_do_dont_is_changing my_will_wont_is_changing 317 318 extern char *line; 319 320 #ifdef ENCRYPTION 321 extern void (*encrypt_output) (unsigned char *, int); 322 extern int (*decrypt_input) (int); 323 #endif /* ENCRYPTION */ 324