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