externs.h revision 1.24
1 /* $NetBSD: externs.h,v 1.24 2002/06/14 09:55:08 wiz Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: @(#)externs.h 8.3 (Berkeley) 5/30/95 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__) && !defined(BSD) 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 <stdlib.h> 57 #include <setjmp.h> 58 #if defined(CRAY) && !defined(NO_BSD_SETJMP) 59 #include <bsdsetjmp.h> 60 #endif 61 #ifndef FILIO_H 62 #include <sys/ioctl.h> 63 #else 64 #include <sys/filio.h> 65 #endif 66 #include <errno.h> 67 #ifdef USE_TERMIO 68 # ifndef VINTR 69 # ifdef SYSV_TERMIO 70 # include <sys/termio.h> 71 # else 72 # include <sys/termios.h> 73 # define termio termios 74 # endif 75 # else 76 # if defined(TCSANOW) 77 # define termio termios 78 # endif 79 # endif 80 #endif 81 #if defined(NO_CC_T) || !defined(USE_TERMIO) 82 # if !defined(USE_TERMIO) 83 typedef char cc_t; 84 # else 85 typedef unsigned char cc_t; 86 # endif 87 #endif 88 89 #ifndef NO_STRING_H 90 #include <string.h> 91 #else 92 #include <strings.h> 93 #endif 94 95 #if defined(IPSEC) 96 #include <netinet6/ipsec.h> 97 #if defined(IPSEC_POLICY_IPSEC) 98 extern char *ipsec_policy_in; 99 extern char *ipsec_policy_out; 100 #endif 101 #endif 102 103 #ifndef _POSIX_VDISABLE 104 # ifdef sun 105 # include <sys/param.h> /* pick up VDISABLE definition, mayby */ 106 # endif 107 # ifdef VDISABLE 108 # define _POSIX_VDISABLE VDISABLE 109 # else 110 # define _POSIX_VDISABLE ((cc_t)'\377') 111 # endif 112 #endif 113 114 #define SUBBUFSIZE 256 115 116 #include <sys/cdefs.h> 117 118 extern int 119 autologin, /* Autologin enabled */ 120 skiprc, /* Don't process the ~/.telnetrc file */ 121 eight, /* use eight bit mode (binary in and/or out */ 122 flushout, /* flush output */ 123 connected, /* Are we connected to the other side? */ 124 globalmode, /* Mode tty should be in */ 125 In3270, /* Are we in 3270 mode? */ 126 telnetport, /* Are we connected to the telnet port? */ 127 localflow, /* Flow control handled locally */ 128 restartany, /* If flow control, restart output on any character */ 129 localchars, /* we recognize interrupt/quit */ 130 donelclchars, /* the user has set "localchars" */ 131 showoptions, 132 net, /* Network file descriptor */ 133 tin, /* Terminal input file descriptor */ 134 tout, /* Terminal output file descriptor */ 135 crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */ 136 autoflush, /* flush output when interrupting? */ 137 autosynch, /* send interrupt characters with SYNCH? */ 138 SYNCHing, /* Is the stream in telnet SYNCH mode? */ 139 donebinarytoggle, /* the user has put us in binary */ 140 dontlecho, /* do we suppress local echoing right now? */ 141 crmod, 142 netdata, /* Print out network data flow */ 143 prettydump, /* Print "netdata" output in user readable format */ 144 #if defined(unix) 145 #if defined(TN3270) 146 cursesdata, /* Print out curses data flow */ 147 apitrace, /* Trace API transactions */ 148 #endif /* defined(TN3270) */ 149 termdata, /* Print out terminal data flow */ 150 #endif /* defined(unix) */ 151 debug, /* Debug level */ 152 doaddrlookup, /* do a reverse address lookup? */ 153 clienteof; /* Client received EOF */ 154 155 extern cc_t escape; /* Escape to command mode */ 156 extern cc_t rlogin; /* Rlogin mode escape character */ 157 #ifdef KLUDGELINEMODE 158 extern cc_t echoc; /* Toggle local echoing */ 159 #endif 160 161 extern char 162 *prompt; /* Prompt for command. */ 163 164 extern char 165 doopt[], 166 dont[], 167 will[], 168 wont[], 169 options[], /* All the little options */ 170 *hostname; /* Who are we connected to? */ 171 172 #ifdef ENCRYPTION 173 extern void (*encrypt_output)(unsigned char *, int); 174 extern int (*decrypt_input)(int); 175 #endif /* ENCRYPTION */ 176 177 /* 178 * We keep track of each side of the option negotiation. 179 */ 180 181 #define MY_STATE_WILL 0x01 182 #define MY_WANT_STATE_WILL 0x02 183 #define MY_STATE_DO 0x04 184 #define MY_WANT_STATE_DO 0x08 185 186 /* 187 * Macros to check the current state of things 188 */ 189 190 #define my_state_is_do(opt) (options[opt]&MY_STATE_DO) 191 #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL) 192 #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO) 193 #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL) 194 195 #define my_state_is_dont(opt) (!my_state_is_do(opt)) 196 #define my_state_is_wont(opt) (!my_state_is_will(opt)) 197 #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt)) 198 #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt)) 199 200 #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;} 201 #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;} 202 #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;} 203 #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;} 204 205 #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;} 206 #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;} 207 #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;} 208 #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;} 209 210 /* 211 * Make everything symmetrical 212 */ 213 214 #define HIS_STATE_WILL MY_STATE_DO 215 #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO 216 #define HIS_STATE_DO MY_STATE_WILL 217 #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL 218 219 #define his_state_is_do my_state_is_will 220 #define his_state_is_will my_state_is_do 221 #define his_want_state_is_do my_want_state_is_will 222 #define his_want_state_is_will my_want_state_is_do 223 224 #define his_state_is_dont my_state_is_wont 225 #define his_state_is_wont my_state_is_dont 226 #define his_want_state_is_dont my_want_state_is_wont 227 #define his_want_state_is_wont my_want_state_is_dont 228 229 #define set_his_state_do set_my_state_will 230 #define set_his_state_will set_my_state_do 231 #define set_his_want_state_do set_my_want_state_will 232 #define set_his_want_state_will set_my_want_state_do 233 234 #define set_his_state_dont set_my_state_wont 235 #define set_his_state_wont set_my_state_dont 236 #define set_his_want_state_dont set_my_want_state_wont 237 #define set_his_want_state_wont set_my_want_state_dont 238 239 240 extern FILE 241 *NetTrace; /* Where debugging output goes */ 242 extern unsigned char 243 NetTraceFile[]; /* Name of file where debugging output goes */ 244 245 extern jmp_buf 246 peerdied, 247 toplevel; /* For error conditions. */ 248 249 250 /* authenc.c */ 251 int telnet_net_write(unsigned char *, int); 252 void net_encrypt(void); 253 int telnet_spin(void); 254 char *telnet_getenv(char *); 255 char *telnet_gets(char *, char *, int, int); 256 257 /* commands.c */ 258 int send_tncmd(void (*)(int, int), char *, char *); 259 void _setlist_init(void); 260 void set_escape_char(char *); 261 int set_mode(int); 262 int clear_mode(int); 263 int modehelp(int); 264 int suspend(int, char *[]); 265 int shell(int, char *[]); 266 int quit(int, char *[]); 267 int logout(int, char *[]); 268 int env_cmd(int, char *[]); 269 struct env_lst *env_find(unsigned char *); 270 void env_init(void); 271 struct env_lst *env_define(unsigned char *, unsigned char *); 272 struct env_lst *env_undefine(unsigned char *, unsigned char *); 273 struct env_lst *env_export(unsigned char *, unsigned char *); 274 struct env_lst *env_unexport(unsigned char *, unsigned char *); 275 struct env_lst *env_send(unsigned char *, unsigned char *); 276 struct env_lst *env_list(unsigned char *, unsigned char *); 277 unsigned char *env_default(int, int ); 278 unsigned char *env_getvalue(unsigned char *); 279 void env_varval(unsigned char *); 280 int auth_cmd(int, char *[]); 281 int ayt_status(void); 282 int encrypt_cmd(int, char *[]); 283 int tn(int, char *[]); 284 void command(int, char *, int); 285 void cmdrc(const char *, const char *); 286 struct addrinfo; 287 int sourceroute(struct addrinfo *, char *, char **, int *, int*); 288 289 /* main.c */ 290 void tninit(void); 291 void usage(void); 292 293 /* network.c */ 294 void init_network(void); 295 int stilloob(void); 296 void setneturg(void); 297 int netflush(void); 298 299 /* sys_bsd.c */ 300 void init_sys(void); 301 int TerminalWrite(char *, int); 302 int TerminalRead(unsigned char *, int); 303 int TerminalAutoFlush(void); 304 int TerminalSpecialChars(int); 305 void TerminalFlushOutput(void); 306 void TerminalSaveState(void); 307 cc_t *tcval(int); 308 void TerminalDefaultChars(void); 309 void TerminalRestoreState(void); 310 void TerminalNewMode(int); 311 void TerminalSpeeds(long *, long *); 312 int TerminalWindowSize(long *, long *); 313 int NetClose(int); 314 void NetNonblockingIO(int, int); 315 void NetSigIO(int, int); 316 void NetSetPgrp(int); 317 void sys_telnet_init(void); 318 int process_rings(int , int , int , int , int , int); 319 320 /* telnet.c */ 321 void init_telnet(void); 322 void send_do(int, int ); 323 void send_dont(int, int ); 324 void send_will(int, int ); 325 void send_wont(int, int ); 326 void willoption(int); 327 void wontoption(int); 328 char **mklist(char *, char *); 329 int is_unique(char *, char **, char **); 330 int setup_term(char *, int, int *); 331 char *gettermname(void); 332 void lm_will(unsigned char *, int); 333 void lm_wont(unsigned char *, int); 334 void lm_do(unsigned char *, int); 335 void lm_dont(unsigned char *, int); 336 void lm_mode(unsigned char *, int, int ); 337 void slc_init(void); 338 void slcstate(void); 339 void slc_mode_export(int); 340 void slc_mode_import(int); 341 void slc_import(int); 342 void slc_export(void); 343 void slc(unsigned char *, int); 344 void slc_check(void); 345 void slc_start_reply(void); 346 void slc_add_reply(unsigned int, unsigned int, cc_t); 347 void slc_end_reply(void); 348 int slc_update(void); 349 void env_opt(unsigned char *, int); 350 void env_opt_start(void); 351 void env_opt_start_info(void); 352 void env_opt_add(unsigned char *); 353 int opt_welldefined(char *); 354 void env_opt_end(int); 355 int telrcv(void); 356 int rlogin_susp(void); 357 int Scheduler(int); 358 void telnet(const char *); 359 void xmitAO(void); 360 void xmitEL(void); 361 void xmitEC(void); 362 int dosynch(char *); 363 int get_status(char *); 364 void intp(void); 365 void sendbrk(void); 366 void sendabort(void); 367 void sendsusp(void); 368 void sendeof(void); 369 void sendayt(void); 370 void sendnaws(void); 371 void tel_enter_binary(int); 372 void tel_leave_binary(int); 373 374 /* terminal.c */ 375 void init_terminal(void); 376 int ttyflush(int); 377 int getconnmode(void); 378 void setconnmode(int); 379 void setcommandmode(void); 380 381 /* utilities.c */ 382 void upcase(char *); 383 int SetSockOpt(int, int , int , int ); 384 void SetNetTrace(char *); 385 void Dump(int, unsigned char *, int); 386 void printoption(char *, int, int ); 387 void optionstatus(void); 388 void printsub(int, unsigned char *, int); 389 void EmptyTerminal(void); 390 void SetForExit(void); 391 void Exit(int) __attribute__((__noreturn__)); 392 void ExitString(char *, int) __attribute__((__noreturn__)); 393 394 #ifndef USE_TERMIO 395 396 extern struct tchars ntc; 397 extern struct ltchars nltc; 398 extern struct sgttyb nttyb; 399 400 # define termEofChar ntc.t_eofc 401 # define termEraseChar nttyb.sg_erase 402 # define termFlushChar nltc.t_flushc 403 # define termIntChar ntc.t_intrc 404 # define termKillChar nttyb.sg_kill 405 # define termLiteralNextChar nltc.t_lnextc 406 # define termQuitChar ntc.t_quitc 407 # define termSuspChar nltc.t_suspc 408 # define termRprntChar nltc.t_rprntc 409 # define termWerasChar nltc.t_werasc 410 # define termStartChar ntc.t_startc 411 # define termStopChar ntc.t_stopc 412 # define termForw1Char ntc.t_brkc 413 extern cc_t termForw2Char; 414 extern cc_t termAytChar; 415 416 # define termEofCharp (cc_t *)&ntc.t_eofc 417 # define termEraseCharp (cc_t *)&nttyb.sg_erase 418 # define termFlushCharp (cc_t *)&nltc.t_flushc 419 # define termIntCharp (cc_t *)&ntc.t_intrc 420 # define termKillCharp (cc_t *)&nttyb.sg_kill 421 # define termLiteralNextCharp (cc_t *)&nltc.t_lnextc 422 # define termQuitCharp (cc_t *)&ntc.t_quitc 423 # define termSuspCharp (cc_t *)&nltc.t_suspc 424 # define termRprntCharp (cc_t *)&nltc.t_rprntc 425 # define termWerasCharp (cc_t *)&nltc.t_werasc 426 # define termStartCharp (cc_t *)&ntc.t_startc 427 # define termStopCharp (cc_t *)&ntc.t_stopc 428 # define termForw1Charp (cc_t *)&ntc.t_brkc 429 # define termForw2Charp (cc_t *)&termForw2Char 430 # define termAytCharp (cc_t *)&termAytChar 431 432 # else 433 434 extern struct termio new_tc; 435 436 # define termEofChar new_tc.c_cc[VEOF] 437 # define termEraseChar new_tc.c_cc[VERASE] 438 # define termIntChar new_tc.c_cc[VINTR] 439 # define termKillChar new_tc.c_cc[VKILL] 440 # define termQuitChar new_tc.c_cc[VQUIT] 441 442 # ifndef VSUSP 443 extern cc_t termSuspChar; 444 # else 445 # define termSuspChar new_tc.c_cc[VSUSP] 446 # endif 447 # if defined(VFLUSHO) && !defined(VDISCARD) 448 # define VDISCARD VFLUSHO 449 # endif 450 # ifndef VDISCARD 451 extern cc_t termFlushChar; 452 # else 453 # define termFlushChar new_tc.c_cc[VDISCARD] 454 # endif 455 # ifndef VWERASE 456 extern cc_t termWerasChar; 457 # else 458 # define termWerasChar new_tc.c_cc[VWERASE] 459 # endif 460 # ifndef VREPRINT 461 extern cc_t termRprntChar; 462 # else 463 # define termRprntChar new_tc.c_cc[VREPRINT] 464 # endif 465 # ifndef VLNEXT 466 extern cc_t termLiteralNextChar; 467 # else 468 # define termLiteralNextChar new_tc.c_cc[VLNEXT] 469 # endif 470 # ifndef VSTART 471 extern cc_t termStartChar; 472 # else 473 # define termStartChar new_tc.c_cc[VSTART] 474 # endif 475 # ifndef VSTOP 476 extern cc_t termStopChar; 477 # else 478 # define termStopChar new_tc.c_cc[VSTOP] 479 # endif 480 # ifndef VEOL 481 extern cc_t termForw1Char; 482 # else 483 # define termForw1Char new_tc.c_cc[VEOL] 484 # endif 485 # ifndef VEOL2 486 extern cc_t termForw2Char; 487 # else 488 # define termForw2Char new_tc.c_cc[VEOL] 489 # endif 490 # ifndef VSTATUS 491 extern cc_t termAytChar; 492 #else 493 # define termAytChar new_tc.c_cc[VSTATUS] 494 #endif 495 496 # define termEofCharp &termEofChar 497 # define termEraseCharp &termEraseChar 498 # define termIntCharp &termIntChar 499 # define termKillCharp &termKillChar 500 # define termQuitCharp &termQuitChar 501 # define termSuspCharp &termSuspChar 502 # define termFlushCharp &termFlushChar 503 # define termWerasCharp &termWerasChar 504 # define termRprntCharp &termRprntChar 505 # define termLiteralNextCharp &termLiteralNextChar 506 # define termStartCharp &termStartChar 507 # define termStopCharp &termStopChar 508 # define termForw1Charp &termForw1Char 509 # define termForw2Charp &termForw2Char 510 # define termAytCharp &termAytChar 511 #endif 512 513 514 /* Tn3270 section */ 515 #if defined(TN3270) 516 517 extern int 518 HaveInput, /* Whether an asynchronous I/O indication came in */ 519 noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */ 520 noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */ 521 sigiocount, /* Count of SIGIO receptions */ 522 shell_active; /* Subshell is active */ 523 524 extern char 525 *Ibackp, /* Oldest byte of 3270 data */ 526 Ibuf[], /* 3270 buffer */ 527 *Ifrontp, /* Where next 3270 byte goes */ 528 tline[200], 529 *transcom; /* Transparent command */ 530 531 /* tn3270.c */ 532 void init_3270(void); 533 int DataToNetwork(char *, int, int); 534 void inputAvailable(int); 535 void outputPurge(void); 536 int DataToTerminal(char *, int); 537 int Push3270(void); 538 void Finish3270(void); 539 void StringToTerminal(char *); 540 int _putchar(int); 541 void SetIn3270(void); 542 int tn3270_ttype(void); 543 int settranscom(int, char *[]); 544 int shell_continue(void); 545 int DataFromTerminal(char *, int); 546 int DataFromNetwork(char *, int, int); 547 void ConnectScreen(void); 548 int DoTerminalOutput(void); 549 550 #endif /* defined(TN3270) */ 551
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