1 /* 2 * Copyright 1994-2002 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* 7 * Copyright (c) 1988, 1990, 1993 8 * The Regents of the University of California. All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)externs.h 8.1 (Berkeley) 6/6/93 39 */ 40 41 #ifndef _EXTERNS_H 42 #define _EXTERNS_H 43 44 #pragma ident "%Z%%M% %I% %E% SMI" 45 46 #ifdef __cplusplus 47 extern "C" { 48 #endif 49 50 #include <libintl.h> 51 #include <stdio.h> 52 #include <setjmp.h> 53 #include <sys/filio.h> 54 #ifdef USE_TERMIO 55 #include <sys/termios.h> 56 #define termio termios 57 #endif 58 #if defined(NO_CC_T) || !defined(USE_TERMIO) 59 #if !defined(USE_TERMIO) 60 typedef char cc_t; 61 #else 62 typedef unsigned char cc_t; 63 #endif 64 #endif 65 66 #include "auth.h" 67 #include "encrypt.h" 68 #include <profile/prof_int.h> 69 70 extern profile_options_boolean config_file_options[]; 71 #define forwardable_flag_set config_file_options[0].found 72 #define forward_flag_set config_file_options[1].found 73 #define encrypt_flag_set config_file_options[2].found 74 #define autologin_set config_file_options[3].found 75 76 #include <string.h> 77 78 #ifndef _POSIX_VDISABLE 79 #include <sys/param.h> /* pick up VDISABLE definition, mayby */ 80 #ifdef VDISABLE 81 #define _POSIX_VDISABLE VDISABLE 82 #else 83 #define _POSIX_VDISABLE ((cc_t)'\377') 84 #endif 85 #endif 86 87 #include <wait.h> 88 #include <stdlib.h> 89 #include <unistd.h> 90 91 92 #define SUBBUFSIZE 256 93 94 extern int autologin; /* Autologin enabled */ 95 extern int skiprc; /* Don't process the ~/.telnetrc file */ 96 extern int eight; /* use eight bit mode (binary in and/or out */ 97 extern int flushout; /* flush output */ 98 extern int connected; /* Are we connected to the other side? */ 99 extern int globalmode; /* Mode tty should be in */ 100 extern int telnetport; /* Are we connected to the telnet port? */ 101 extern int localflow; /* Flow control handled locally */ 102 extern int restartany; /* If flow control, restart output on any character */ 103 extern int localchars; /* we recognize interrupt/quit */ 104 extern int donelclchars; /* the user has set "localchars" */ 105 extern int showoptions; 106 extern int net; /* Network file descriptor */ 107 extern int tout; /* Terminal output file descriptor */ 108 extern int crlf; /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 109 extern int autoflush; /* flush output when interrupting? */ 110 extern int autosynch; /* send interrupt characters with SYNCH? */ 111 extern int SYNCHing; /* Is the stream in telnet SYNCH mode? */ 112 extern int donebinarytoggle; /* the user has put us in binary */ 113 extern int dontlecho; /* do we suppress local echoing right now? */ 114 extern int crmod; 115 extern int netdata; /* Print out network data flow */ 116 extern int prettydump; /* Print "netdata" output in user readable format */ 117 extern int termdata; /* Print out terminal data flow */ 118 extern int eof_pending; /* Received EOF in line mode, need to send IAC-xEOF */ 119 extern int debug; /* Debug level */ 120 121 122 extern int krb5auth_flag; 123 extern char *RemoteHostName; 124 extern char *UserNameRequested; 125 extern int forwardable_flag; 126 extern int forward_flag; 127 extern boolean_t wantencryption; /* User has requested encryption */ 128 extern int encrypt_flag; /* for reading config file for Krb5 */ 129 130 extern boolean_t Ambiguous(void *); 131 extern boolean_t intr_happened; /* for interrupt handling */ 132 extern boolean_t intr_waiting; 133 134 extern cc_t escape; /* Escape to command mode */ 135 extern cc_t rlogin; /* Rlogin mode escape character */ 136 extern boolean_t escape_valid; 137 #ifdef KLUDGELINEMODE 138 extern cc_t echoc; /* Toggle local echoing */ 139 #endif 140 141 extern char *prompt; /* Prompt for command. */ 142 143 extern char doopt[]; 144 extern char dont[]; 145 extern char will[]; 146 extern char wont[]; 147 extern char options[]; /* All the little options */ 148 extern char *hostname; /* Who are we connected to? */ 149 extern void (*encrypt_output) (unsigned char *, int); 150 extern int (*decrypt_input) (int); 151 152 /* 153 * We keep track of each side of the option negotiation. 154 */ 155 156 #define MY_STATE_WILL 0x01 157 #define MY_WANT_STATE_WILL 0x02 158 #define MY_STATE_DO 0x04 159 #define MY_WANT_STATE_DO 0x08 160 161 /* 162 * Macros to check the current state of things 163 */ 164 165 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 166 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 167 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 168 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 169 170 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 171 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 172 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 173 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 174 175 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO; } 176 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL; } 177 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO; } 178 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL; } 179 180 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO; } 181 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL; } 182 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO; } 183 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL; } 184 185 /* 186 * Make everything symetrical 187 */ 188 189 #define HIS_STATE_WILL MY_STATE_DO 190 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 191 #define HIS_STATE_DO MY_STATE_WILL 192 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 193 194 #define his_state_is_do my_state_is_will 195 #define his_state_is_will my_state_is_do 196 #define his_want_state_is_do my_want_state_is_will 197 #define his_want_state_is_will my_want_state_is_do 198 199 #define his_state_is_dont my_state_is_wont 200 #define his_state_is_wont my_state_is_dont 201 #define his_want_state_is_dont my_want_state_is_wont 202 #define his_want_state_is_wont my_want_state_is_dont 203 204 #define set_his_state_do set_my_state_will 205 #define set_his_state_will set_my_state_do 206 #define set_his_want_state_do set_my_want_state_will 207 #define set_his_want_state_will set_my_want_state_do 208 209 #define set_his_state_dont set_my_state_wont 210 #define set_his_state_wont set_my_state_dont 211 #define set_his_want_state_dont set_my_want_state_wont 212 #define set_his_want_state_wont set_my_want_state_dont 213 214 215 extern FILE *NetTrace; /* Where debugging output goes */ 216 /* Name of file where debugging output goes */ 217 extern unsigned char NetTraceFile[]; 218 extern void SetNetTrace(char *); /* Function to change where debugging goes */ 219 220 extern jmp_buf peerdied; 221 extern jmp_buf toplevel; /* For error conditions. */ 222 223 extern char *AllocStringBuffer(char **, unsigned int *, unsigned int); 224 extern void ExitString(char *, int); 225 extern void Exit(int); 226 extern void command(int, char *, int); 227 extern void Dump(int, unsigned char *, int); 228 extern char *GetAndAppendString(char **, unsigned int *, char *, FILE *); 229 extern char *GetString(char **, unsigned int *, FILE *); 230 extern void init_network(void); 231 extern void init_terminal(void); 232 extern void init_sys(void); 233 extern void optionstatus(void); 234 extern void printoption(char *, int, int); 235 extern void printsub(int, unsigned char *, int); 236 extern void sendnaws(void); 237 extern void setconnmode(int); 238 extern void setcommandmode(void); 239 extern void setneturg(void); 240 extern void sys_telnet_init(void); 241 extern void telnet(char *); 242 extern void tel_enter_binary(int); 243 extern void tel_leave_binary(int); 244 extern void TerminalDefaultChars(void); 245 extern void TerminalFlushOutput(void); 246 extern void TerminalNewMode(int); 247 extern void TerminalSaveState(void); 248 extern void TerminalSpeeds(int *, int *); 249 extern void upcase(char *); 250 251 extern void xmitEL(void); 252 extern void xmitEC(void); 253 extern void intp(void); 254 extern void sendabort(void); 255 extern void sendsusp(void); 256 extern void set_escape_char(char *); 257 extern void fatal_tty_error(char *); 258 259 extern void send_do(int, int); 260 extern void send_dont(int, int); 261 extern void send_will(int, int); 262 extern void send_wont(int, int); 263 264 extern void lm_mode(unsigned char *, int, int); 265 266 extern void slcstate(void); 267 extern void slc_mode_export(void); 268 extern void slc_mode_import(int); 269 extern void slc_check(void); 270 271 extern void env_opt_start_info(void); 272 extern void env_opt_add(unsigned char *); 273 extern void env_opt_end(int); 274 275 extern char **genget(char *, char **, int); 276 extern unsigned char *env_default(int, int); 277 extern unsigned char *env_getvalue(unsigned char *); 278 279 extern int env_init(void); 280 extern int get_status(void); 281 extern int init_telnet(void); 282 extern int isprefix(register char *, register char *); 283 extern int netflush(void); 284 extern int opt_welldefined(char *); 285 extern int process_rings(int, int, int, int, int, int); 286 extern int quit(void); 287 extern int rlogin_susp(void); 288 extern int Scheduler(int); 289 extern int SetSockOpt(int, int, int, int); 290 extern int stilloob(void); 291 extern int telrcv(void); 292 extern int TerminalWindowSize(unsigned short *, unsigned short *); 293 extern int TerminalWrite(char *, int); 294 extern int TerminalSpecialChars(int); 295 extern int tn(int, char **); 296 extern int tninit(void); 297 extern int ttyflush(int); 298 extern int getconnmode(void); 299 extern int xmitAO(void); 300 extern int sendbrk(void); 301 extern int dosynch(void); 302 303 extern cc_t *tcval(int); 304 305 extern void auth_encrypt_init(char *, char *, char *); 306 extern void auth_encrypt_user(char *); 307 extern int net_write(unsigned char *, int len); 308 extern void net_encrypt(void); 309 extern void telnet_spin(void); 310 extern void printd(unsigned char *, int); 311 312 #ifndef USE_TERMIO 313 314 extern struct tchars ntc; 315 extern struct ltchars nltc; 316 extern struct sgttyb nttyb; 317 318 #define termEofChar ntc.t_eofc 319 #define termEraseChar nttyb.sg_erase 320 #define termFlushChar nltc.t_flushc 321 #define termIntChar ntc.t_intrc 322 #define termKillChar nttyb.sg_kill 323 #define termLiteralNextChar nltc.t_lnextc 324 #define termQuitChar ntc.t_quitc 325 #define termSuspChar nltc.t_suspc 326 #define termRprntChar nltc.t_rprntc 327 #define termWerasChar nltc.t_werasc 328 #define termStartChar ntc.t_startc 329 #define termStopChar ntc.t_stopc 330 #define termForw1Char ntc.t_brkc 331 extern cc_t termForw2Char; 332 extern cc_t termAytChar; 333 334 #define termEofCharp (cc_t *)&ntc.t_eofc 335 #define termEraseCharp (cc_t *)&nttyb.sg_erase 336 #define termFlushCharp (cc_t *)&nltc.t_flushc 337 #define termIntCharp (cc_t *)&ntc.t_intrc 338 #define termKillCharp (cc_t *)&nttyb.sg_kill 339 #define termLiteralNextCharp (cc_t *)&nltc.t_lnextc 340 #define termQuitCharp (cc_t *)&ntc.t_quitc 341 #define termSuspCharp (cc_t *)&nltc.t_suspc 342 #define termRprntCharp (cc_t *)&nltc.t_rprntc 343 #define termWerasCharp (cc_t *)&nltc.t_werasc 344 #define termStartCharp (cc_t *)&ntc.t_startc 345 #define termStopCharp (cc_t *)&ntc.t_stopc 346 #define termForw1Charp (cc_t *)&ntc.t_brkc 347 #define termForw2Charp (cc_t *)&termForw2Char 348 #define termAytCharp (cc_t *)&termAytChar 349 350 #else 351 352 extern struct termio new_tc; 353 354 #define termEofChar new_tc.c_cc[VEOF] 355 #define termEraseChar new_tc.c_cc[VERASE] 356 #define termIntChar new_tc.c_cc[VINTR] 357 #define termKillChar new_tc.c_cc[VKILL] 358 #define termQuitChar new_tc.c_cc[VQUIT] 359 360 #define termSuspChar new_tc.c_cc[VSUSP] 361 #define termFlushChar new_tc.c_cc[VDISCARD] 362 #define termWerasChar new_tc.c_cc[VWERASE] 363 #define termRprntChar new_tc.c_cc[VREPRINT] 364 #define termLiteralNextChar new_tc.c_cc[VLNEXT] 365 #define termStartChar new_tc.c_cc[VSTART] 366 #define termStopChar new_tc.c_cc[VSTOP] 367 #define termForw1Char new_tc.c_cc[VEOL] 368 #define termForw2Char new_tc.c_cc[VEOL] 369 extern cc_t termAytChar; 370 371 #define termEofCharp &termEofChar 372 #define termEraseCharp &termEraseChar 373 #define termIntCharp &termIntChar 374 #define termKillCharp &termKillChar 375 #define termQuitCharp &termQuitChar 376 #define termSuspCharp &termSuspChar 377 #define termFlushCharp &termFlushChar 378 #define termWerasCharp &termWerasChar 379 #define termRprntCharp &termRprntChar 380 #define termLiteralNextCharp &termLiteralNextChar 381 #define termStartCharp &termStartChar 382 #define termStopCharp &termStopChar 383 #define termForw1Charp &termForw1Char 384 #define termForw2Charp &termForw2Char 385 #define termAytCharp &termAytChar 386 #endif 387 388 389 /* Ring buffer structures which are shared */ 390 391 #include "ring.h" 392 393 extern Ring netoring; 394 extern Ring netiring; 395 extern Ring ttyoring; 396 extern Ring ttyiring; 397 398 #ifdef __cplusplus 399 } 400 #endif 401 402 #endif /* _EXTERNS_H */ 403