1 /* 2 * Copyright (c) 1988, 1990, 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 * @(#)externs.h 8.3 (Berkeley) 5/30/95 34 * $FreeBSD: src/crypto/telnet/telnet/externs.h,v 1.4.2.2 2002/04/13 10:59:08 markm Exp $ 35 * $DragonFly: src/crypto/telnet/telnet/externs.h,v 1.2 2003/06/17 04:24:37 dillon Exp $ 36 */ 37 38 #ifndef BSD 39 # define BSD 43 40 #endif 41 42 /* 43 * ucb stdio.h defines BSD as something weird 44 */ 45 #if defined(sun) && defined(__svr4__) 46 #define BSD 43 47 #endif 48 49 #ifndef USE_TERMIO 50 # if BSD > 43 || defined(SYSV_TERMIO) 51 # define USE_TERMIO 52 # endif 53 #endif 54 55 #include <stdio.h> 56 #include <setjmp.h> 57 #include <sys/ioctl.h> 58 #include <errno.h> 59 #ifdef USE_TERMIO 60 # ifndef VINTR 61 # include <sys/termios.h> 62 # endif 63 # define termio termios 64 #endif 65 #if defined(NO_CC_T) || !defined(USE_TERMIO) 66 # if !defined(USE_TERMIO) 67 typedef char cc_t; 68 # else 69 typedef unsigned char cc_t; 70 # endif 71 #endif 72 73 #include <string.h> 74 75 #if defined(IPSEC) 76 #include <netinet6/ipsec.h> 77 #if defined(IPSEC_POLICY_IPSEC) 78 extern char *ipsec_policy_in; 79 extern char *ipsec_policy_out; 80 #endif 81 #endif 82 83 #ifndef _POSIX_VDISABLE 84 # ifdef sun 85 # include <sys/param.h> /* pick up VDISABLE definition, mayby */ 86 # endif 87 # ifdef VDISABLE 88 # define _POSIX_VDISABLE VDISABLE 89 # else 90 # define _POSIX_VDISABLE ((cc_t)'\377') 91 # endif 92 #endif 93 94 #define SUBBUFSIZE 256 95 96 extern int 97 autologin, /* Autologin enabled */ 98 skiprc, /* Don't process the ~/.telnetrc file */ 99 eight, /* use eight bit mode (binary in and/or out */ 100 family, /* address family of peer */ 101 flushout, /* flush output */ 102 connected, /* Are we connected to the other side? */ 103 globalmode, /* Mode tty should be in */ 104 telnetport, /* Are we connected to the telnet port? */ 105 localflow, /* Flow control handled locally */ 106 restartany, /* If flow control, restart output on any character */ 107 localchars, /* we recognize interrupt/quit */ 108 donelclchars, /* the user has set "localchars" */ 109 showoptions, 110 net, /* Network file descriptor */ 111 tin, /* Terminal input file descriptor */ 112 tout, /* Terminal output file descriptor */ 113 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 114 autoflush, /* flush output when interrupting? */ 115 autosynch, /* send interrupt characters with SYNCH? */ 116 SYNCHing, /* Is the stream in telnet SYNCH mode? */ 117 donebinarytoggle, /* the user has put us in binary */ 118 dontlecho, /* do we suppress local echoing right now? */ 119 crmod, 120 netdata, /* Print out network data flow */ 121 prettydump, /* Print "netdata" output in user readable format */ 122 termdata, /* Print out terminal data flow */ 123 debug, /* Debug level */ 124 doaddrlookup, /* do a reverse lookup? */ 125 clienteof; /* Client received EOF */ 126 127 extern cc_t escape; /* Escape to command mode */ 128 extern cc_t rlogin; /* Rlogin mode escape character */ 129 #ifdef KLUDGELINEMODE 130 extern cc_t echoc; /* Toggle local echoing */ 131 #endif 132 133 extern char 134 *prompt; /* Prompt for command. */ 135 136 extern char 137 doopt[], 138 dont[], 139 will[], 140 wont[], 141 options[], /* All the little options */ 142 *hostname; /* Who are we connected to? */ 143 #ifdef ENCRYPTION 144 extern void (*encrypt_output)(unsigned char *, int); 145 extern int (*decrypt_input)(int); 146 #endif /* ENCRYPTION */ 147 148 /* 149 * We keep track of each side of the option negotiation. 150 */ 151 152 #define MY_STATE_WILL 0x01 153 #define MY_WANT_STATE_WILL 0x02 154 #define MY_STATE_DO 0x04 155 #define MY_WANT_STATE_DO 0x08 156 157 /* 158 * Macros to check the current state of things 159 */ 160 161 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 162 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 163 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 164 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 165 166 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 167 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 168 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 169 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 170 171 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} 172 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} 173 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} 174 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} 175 176 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} 177 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} 178 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} 179 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} 180 181 /* 182 * Make everything symetrical 183 */ 184 185 #define HIS_STATE_WILL MY_STATE_DO 186 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 187 #define HIS_STATE_DO MY_STATE_WILL 188 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 189 190 #define his_state_is_do my_state_is_will 191 #define his_state_is_will my_state_is_do 192 #define his_want_state_is_do my_want_state_is_will 193 #define his_want_state_is_will my_want_state_is_do 194 195 #define his_state_is_dont my_state_is_wont 196 #define his_state_is_wont my_state_is_dont 197 #define his_want_state_is_dont my_want_state_is_wont 198 #define his_want_state_is_wont my_want_state_is_dont 199 200 #define set_his_state_do set_my_state_will 201 #define set_his_state_will set_my_state_do 202 #define set_his_want_state_do set_my_want_state_will 203 #define set_his_want_state_will set_my_want_state_do 204 205 #define set_his_state_dont set_my_state_wont 206 #define set_his_state_wont set_my_state_dont 207 #define set_his_want_state_dont set_my_want_state_wont 208 #define set_his_want_state_wont set_my_want_state_dont 209 210 #if defined(USE_TERMIO) 211 #define SIG_FUNC_RET void 212 #else 213 #define SIG_FUNC_RET int 214 #endif 215 216 #ifdef SIGINFO 217 extern SIG_FUNC_RET 218 ayt_status(void); 219 #endif 220 221 extern FILE 222 *NetTrace; /* Where debugging output goes */ 223 extern unsigned char 224 NetTraceFile[]; /* Name of file where debugging output goes */ 225 extern void 226 SetNetTrace(char *); /* Function to change where debugging goes */ 227 228 extern jmp_buf 229 peerdied, 230 toplevel; /* For error conditions. */ 231 232 extern void 233 command(int, const char *, int), 234 Dump(char, unsigned char *, int), 235 env_init(void), 236 Exit(int), 237 ExitString(const char *, int), 238 init_network(void), 239 init_sys(void), 240 init_telnet(void), 241 init_terminal(void), 242 intp(void), 243 optionstatus(void), 244 printoption(const char *, int, int), 245 printsub(char, unsigned char *, int), 246 quit(void), 247 sendabort(void), 248 sendbrk(void), 249 sendeof(void), 250 sendsusp(void), 251 sendnaws(void), 252 sendayt(void), 253 setconnmode(int), 254 setcommandmode(void), 255 set_escape_char(char *s), 256 setneturg(void), 257 sys_telnet_init(void), 258 telnet(char *), 259 tel_enter_binary(int), 260 tel_leave_binary(int), 261 TerminalFlushOutput(void), 262 TerminalNewMode(int), 263 TerminalRestoreState(void), 264 TerminalSaveState(void), 265 TerminalDefaultChars(void), 266 TerminalSpeeds(long *, long *), 267 tninit(void), 268 upcase(char *), 269 willoption(int), 270 wontoption(int); 271 272 extern void 273 send_do(int, int), 274 send_dont(int, int), 275 send_will(int, int), 276 send_wont(int, int); 277 278 extern void 279 lm_will(unsigned char *, int), 280 lm_wont(unsigned char *, int), 281 lm_do(unsigned char *, int), 282 lm_dont(unsigned char *, int), 283 lm_mode(unsigned char *, int, int); 284 285 extern void 286 slc_init(void), 287 slcstate(void), 288 slc_mode_export(void), 289 slc_mode_import(int), 290 slc_import(int), 291 slc_export(void), 292 slc(unsigned char *, int), 293 slc_check(void), 294 slc_start_reply(void), 295 slc_add_reply(unsigned char, unsigned char, cc_t), 296 slc_end_reply(void); 297 extern int 298 getconnmode(void), 299 opt_welldefined(const char *), 300 NetClose(int), 301 netflush(void), 302 process_rings(int, int, int, int, int, int), 303 rlogin_susp(void), 304 SetSockOpt(int, int, int, int), 305 slc_update(void), 306 stilloob(void), 307 telrcv(void), 308 TerminalRead(char *, int), 309 TerminalWrite(char *, int), 310 TerminalAutoFlush(void), 311 TerminalWindowSize(long *, long *), 312 TerminalSpecialChars(int), 313 tn(int, char **), 314 ttyflush(int); 315 316 extern void 317 env_opt(unsigned char *, int), 318 env_opt_start(void), 319 env_opt_start_info(void), 320 env_opt_add(unsigned char *), 321 env_opt_end(int); 322 323 extern unsigned char 324 *env_default(int, int), 325 *env_getvalue(const unsigned char *); 326 327 extern int 328 get_status(char *), 329 dosynch(char *); 330 331 extern cc_t 332 *tcval(int); 333 334 #ifndef USE_TERMIO 335 336 extern struct tchars ntc; 337 extern struct ltchars nltc; 338 extern struct sgttyb nttyb; 339 340 # define termEofChar ntc.t_eofc 341 # define termEraseChar nttyb.sg_erase 342 # define termFlushChar nltc.t_flushc 343 # define termIntChar ntc.t_intrc 344 # define termKillChar nttyb.sg_kill 345 # define termLiteralNextChar nltc.t_lnextc 346 # define termQuitChar ntc.t_quitc 347 # define termSuspChar nltc.t_suspc 348 # define termRprntChar nltc.t_rprntc 349 # define termWerasChar nltc.t_werasc 350 # define termStartChar ntc.t_startc 351 # define termStopChar ntc.t_stopc 352 # define termForw1Char ntc.t_brkc 353 extern cc_t termForw2Char; 354 extern cc_t termAytChar; 355 356 # define termEofCharp (cc_t *)&ntc.t_eofc 357 # define termEraseCharp (cc_t *)&nttyb.sg_erase 358 # define termFlushCharp (cc_t *)&nltc.t_flushc 359 # define termIntCharp (cc_t *)&ntc.t_intrc 360 # define termKillCharp (cc_t *)&nttyb.sg_kill 361 # define termLiteralNextCharp (cc_t *)&nltc.t_lnextc 362 # define termQuitCharp (cc_t *)&ntc.t_quitc 363 # define termSuspCharp (cc_t *)&nltc.t_suspc 364 # define termRprntCharp (cc_t *)&nltc.t_rprntc 365 # define termWerasCharp (cc_t *)&nltc.t_werasc 366 # define termStartCharp (cc_t *)&ntc.t_startc 367 # define termStopCharp (cc_t *)&ntc.t_stopc 368 # define termForw1Charp (cc_t *)&ntc.t_brkc 369 # define termForw2Charp (cc_t *)&termForw2Char 370 # define termAytCharp (cc_t *)&termAytChar 371 372 # else 373 374 extern struct termio new_tc; 375 376 # define termEofChar new_tc.c_cc[VEOF] 377 # define termEraseChar new_tc.c_cc[VERASE] 378 # define termIntChar new_tc.c_cc[VINTR] 379 # define termKillChar new_tc.c_cc[VKILL] 380 # define termQuitChar new_tc.c_cc[VQUIT] 381 382 # ifndef VSUSP 383 extern cc_t termSuspChar; 384 # else 385 # define termSuspChar new_tc.c_cc[VSUSP] 386 # endif 387 # if defined(VFLUSHO) && !defined(VDISCARD) 388 # define VDISCARD VFLUSHO 389 # endif 390 # ifndef VDISCARD 391 extern cc_t termFlushChar; 392 # else 393 # define termFlushChar new_tc.c_cc[VDISCARD] 394 # endif 395 # ifndef VWERASE 396 extern cc_t termWerasChar; 397 # else 398 # define termWerasChar new_tc.c_cc[VWERASE] 399 # endif 400 # ifndef VREPRINT 401 extern cc_t termRprntChar; 402 # else 403 # define termRprntChar new_tc.c_cc[VREPRINT] 404 # endif 405 # ifndef VLNEXT 406 extern cc_t termLiteralNextChar; 407 # else 408 # define termLiteralNextChar new_tc.c_cc[VLNEXT] 409 # endif 410 # ifndef VSTART 411 extern cc_t termStartChar; 412 # else 413 # define termStartChar new_tc.c_cc[VSTART] 414 # endif 415 # ifndef VSTOP 416 extern cc_t termStopChar; 417 # else 418 # define termStopChar new_tc.c_cc[VSTOP] 419 # endif 420 # ifndef VEOL 421 extern cc_t termForw1Char; 422 # else 423 # define termForw1Char new_tc.c_cc[VEOL] 424 # endif 425 # ifndef VEOL2 426 extern cc_t termForw2Char; 427 # else 428 # define termForw2Char new_tc.c_cc[VEOL] 429 # endif 430 # ifndef VSTATUS 431 extern cc_t termAytChar; 432 #else 433 # define termAytChar new_tc.c_cc[VSTATUS] 434 #endif 435 436 # if defined(__STDC__) 437 # define termEofCharp &termEofChar 438 # define termEraseCharp &termEraseChar 439 # define termIntCharp &termIntChar 440 # define termKillCharp &termKillChar 441 # define termQuitCharp &termQuitChar 442 # define termSuspCharp &termSuspChar 443 # define termFlushCharp &termFlushChar 444 # define termWerasCharp &termWerasChar 445 # define termRprntCharp &termRprntChar 446 # define termLiteralNextCharp &termLiteralNextChar 447 # define termStartCharp &termStartChar 448 # define termStopCharp &termStopChar 449 # define termForw1Charp &termForw1Char 450 # define termForw2Charp &termForw2Char 451 # define termAytCharp &termAytChar 452 # else 453 /* Work around a compiler bug */ 454 # define termEofCharp 0 455 # define termEraseCharp 0 456 # define termIntCharp 0 457 # define termKillCharp 0 458 # define termQuitCharp 0 459 # define termSuspCharp 0 460 # define termFlushCharp 0 461 # define termWerasCharp 0 462 # define termRprntCharp 0 463 # define termLiteralNextCharp 0 464 # define termStartCharp 0 465 # define termStopCharp 0 466 # define termForw1Charp 0 467 # define termForw2Charp 0 468 # define termAytCharp 0 469 # endif 470 #endif 471 472 473 /* Ring buffer structures which are shared */ 474 475 extern Ring 476 netoring, 477 netiring, 478 ttyoring, 479 ttyiring; 480 481 extern void 482 xmitAO(void), 483 xmitEC(void), 484 xmitEL(void); 485