| 1 | /* |
| 2 | * Copyright (c) 1988, 1990 Regents of the University of California. |
| 3 | * 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 5.3 (Berkeley) 3/22/91 |
| 34 | */ |
| 35 | |
| 36 | #ifndef BSD |
| 37 | # define BSD 43 |
| 38 | #endif |
| 39 | |
| 40 | #if (BSD > 43 || defined(SYSV_TERMIO)) && !defined(USE_TERMIO) |
| 41 | # define USE_TERMIO |
| 42 | #endif |
| 43 | |
| 44 | #include <stdio.h> |
| 45 | #include <setjmp.h> |
| 46 | #ifndef FILIO_H |
| 47 | #include <sys/ioctl.h> |
| 48 | #else |
| 49 | #include <sys/filio.h> |
| 50 | #endif |
| 51 | #ifdef USE_TERMIO |
| 52 | # ifndef VINTR |
| 53 | # ifdef SYSV_TERMIO |
| 54 | # include <sys/termio.h> |
| 55 | # else |
| 56 | # include <sys/termios.h> |
| 57 | # define termio termios |
| 58 | # endif |
| 59 | # endif |
| 60 | #endif |
| 61 | #if defined(NO_CC_T) || !defined(USE_TERMIO) |
| 62 | # if !defined(USE_TERMIO) |
| 63 | typedef char cc_t; |
| 64 | # else |
| 65 | typedef unsigned char cc_t; |
| 66 | # endif |
| 67 | #endif |
| 68 | |
| 69 | #ifndef NO_STRING_H |
| 70 | #include <string.h> |
| 71 | #endif |
| 72 | #include <strings.h> |
| 73 | |
| 74 | #ifndef _POSIX_VDISABLE |
| 75 | # ifdef sun |
| 76 | # include <sys/param.h> /* pick up VDISABLE definition, mayby */ |
| 77 | # endif |
| 78 | # ifdef VDISABLE |
| 79 | # define _POSIX_VDISABLE VDISABLE |
| 80 | # else |
| 81 | # define _POSIX_VDISABLE ((cc_t)'\377') |
| 82 | # endif |
| 83 | #endif |
| 84 | |
| 85 | #define SUBBUFSIZE 256 |
| 86 | |
| 87 | extern int errno; /* outside this world */ |
| 88 | |
| 89 | #if !defined(P) |
| 90 | # ifdef __STDC__ |
| 91 | # define P(x) x |
| 92 | # else |
| 93 | # define P(x) () |
| 94 | # endif |
| 95 | #endif |
| 96 | |
| 97 | extern int |
| 98 | autologin, /* Autologin enabled */ |
| 99 | skiprc, /* Don't process the ~/.telnetrc file */ |
| 100 | eight, /* use eight bit mode (binary in and/or out */ |
| 101 | flushout, /* flush output */ |
| 102 | connected, /* Are we connected to the other side? */ |
| 103 | globalmode, /* Mode tty should be in */ |
| 104 | In3270, /* Are we in 3270 mode? */ |
| 105 | telnetport, /* Are we connected to the telnet port? */ |
| 106 | localflow, /* Flow control handled locally */ |
| 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 | #if defined(unix) |
| 123 | #if defined(TN3270) |
| 124 | cursesdata, /* Print out curses data flow */ |
| 125 | apitrace, /* Trace API transactions */ |
| 126 | #endif /* defined(TN3270) */ |
| 127 | termdata, /* Print out terminal data flow */ |
| 128 | #endif /* defined(unix) */ |
| 129 | debug; /* Debug level */ |
| 130 | |
| 131 | extern cc_t escape; /* Escape to command mode */ |
| 132 | extern cc_t rlogin; /* Rlogin mode escape character */ |
| 133 | #ifdef KLUDGELINEMODE |
| 134 | extern cc_t echoc; /* Toggle local echoing */ |
| 135 | #endif |
| 136 | |
| 137 | extern char |
| 138 | *prompt; /* Prompt for command. */ |
| 139 | |
| 140 | extern char |
| 141 | doopt[], |
| 142 | dont[], |
| 143 | will[], |
| 144 | wont[], |
| 145 | options[], /* All the little options */ |
| 146 | *hostname; /* Who are we connected to? */ |
| 147 | #if defined(ENCRYPT) |
| 148 | extern void (*encrypt_output) P((unsigned char *, int)); |
| 149 | extern int (*decrypt_input) P((int)); |
| 150 | #endif |
| 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 |
| 216 | *NetTrace; /* Where debugging output goes */ |
| 217 | extern unsigned char |
| 218 | NetTraceFile[]; /* Name of file where debugging output goes */ |
| 219 | extern void |
| 220 | SetNetTrace P((char *)); /* Function to change where debugging goes */ |
| 221 | |
| 222 | extern jmp_buf |
| 223 | peerdied, |
| 224 | toplevel; /* For error conditions. */ |
| 225 | |
| 226 | extern void |
| 227 | command P((int, char *, int)), |
| 228 | Dump P((int, unsigned char *, int)), |
| 229 | init_3270 P((void)), |
| 230 | printoption P((char *, int, int)), |
| 231 | printsub P((int, unsigned char *, int)), |
| 232 | sendnaws P((void)), |
| 233 | setconnmode P((int)), |
| 234 | setcommandmode P((void)), |
| 235 | setneturg P((void)), |
| 236 | sys_telnet_init P((void)), |
| 237 | telnet P((char *)), |
| 238 | tel_enter_binary P((int)), |
| 239 | TerminalFlushOutput P((void)), |
| 240 | TerminalNewMode P((int)), |
| 241 | TerminalRestoreState P((void)), |
| 242 | TerminalSaveState P((void)), |
| 243 | tninit P((void)), |
| 244 | upcase P((char *)), |
| 245 | willoption P((int)), |
| 246 | wontoption P((int)); |
| 247 | |
| 248 | extern void |
| 249 | lm_will P((unsigned char *, int)), |
| 250 | lm_wont P((unsigned char *, int)), |
| 251 | lm_do P((unsigned char *, int)), |
| 252 | lm_dont P((unsigned char *, int)), |
| 253 | lm_mode P((unsigned char *, int, int)); |
| 254 | |
| 255 | extern void |
| 256 | slc_init P((void)), |
| 257 | slcstate P((void)), |
| 258 | slc_mode_export P((void)), |
| 259 | slc_mode_import P((int)), |
| 260 | slc_import P((int)), |
| 261 | slc_export P((void)), |
| 262 | slc P((unsigned char *, int)), |
| 263 | slc_check P((void)), |
| 264 | slc_start_reply P((void)), |
| 265 | slc_add_reply P((int, int, int)), |
| 266 | slc_end_reply P((void)); |
| 267 | extern int |
| 268 | slc_update P((void)); |
| 269 | |
| 270 | extern void |
| 271 | env_opt P((unsigned char *, int)), |
| 272 | env_opt_start P((void)), |
| 273 | env_opt_start_info P((void)), |
| 274 | env_opt_add P((unsigned char *)), |
| 275 | env_opt_end P((int)); |
| 276 | |
| 277 | extern unsigned char |
| 278 | *env_default P((int)), |
| 279 | *env_getvalue P((unsigned char *)); |
| 280 | |
| 281 | extern int |
| 282 | get_status P((void)), |
| 283 | dosynch P((void)); |
| 284 | |
| 285 | extern cc_t |
| 286 | *tcval P((int)); |
| 287 | |
| 288 | #ifndef USE_TERMIO |
| 289 | |
| 290 | extern struct tchars ntc; |
| 291 | extern struct ltchars nltc; |
| 292 | extern struct sgttyb nttyb; |
| 293 | |
| 294 | # define termEofChar ntc.t_eofc |
| 295 | # define termEraseChar nttyb.sg_erase |
| 296 | # define termFlushChar nltc.t_flushc |
| 297 | # define termIntChar ntc.t_intrc |
| 298 | # define termKillChar nttyb.sg_kill |
| 299 | # define termLiteralNextChar nltc.t_lnextc |
| 300 | # define termQuitChar ntc.t_quitc |
| 301 | # define termSuspChar nltc.t_suspc |
| 302 | # define termRprntChar nltc.t_rprntc |
| 303 | # define termWerasChar nltc.t_werasc |
| 304 | # define termStartChar ntc.t_startc |
| 305 | # define termStopChar ntc.t_stopc |
| 306 | # define termForw1Char ntc.t_brkc |
| 307 | extern cc_t termForw2Char; |
| 308 | extern cc_t termAytChar; |
| 309 | |
| 310 | # define termEofCharp (cc_t *)&ntc.t_eofc |
| 311 | # define termEraseCharp (cc_t *)&nttyb.sg_erase |
| 312 | # define termFlushCharp (cc_t *)&nltc.t_flushc |
| 313 | # define termIntCharp (cc_t *)&ntc.t_intrc |
| 314 | # define termKillCharp (cc_t *)&nttyb.sg_kill |
| 315 | # define termLiteralNextCharp (cc_t *)&nltc.t_lnextc |
| 316 | # define termQuitCharp (cc_t *)&ntc.t_quitc |
| 317 | # define termSuspCharp (cc_t *)&nltc.t_suspc |
| 318 | # define termRprntCharp (cc_t *)&nltc.t_rprntc |
| 319 | # define termWerasCharp (cc_t *)&nltc.t_werasc |
| 320 | # define termStartCharp (cc_t *)&ntc.t_startc |
| 321 | # define termStopCharp (cc_t *)&ntc.t_stopc |
| 322 | # define termForw1Charp (cc_t *)&ntc.t_brkc |
| 323 | # define termForw2Charp (cc_t *)&termForw2Char |
| 324 | # define termAytCharp (cc_t *)&termAytChar |
| 325 | |
| 326 | # else |
| 327 | |
| 328 | extern struct termio new_tc; |
| 329 | |
| 330 | # define termEofChar new_tc.c_cc[VEOF] |
| 331 | # define termEraseChar new_tc.c_cc[VERASE] |
| 332 | # define termIntChar new_tc.c_cc[VINTR] |
| 333 | # define termKillChar new_tc.c_cc[VKILL] |
| 334 | # define termQuitChar new_tc.c_cc[VQUIT] |
| 335 | |
| 336 | # ifndef VSUSP |
| 337 | extern cc_t termSuspChar; |
| 338 | # else |
| 339 | # define termSuspChar new_tc.c_cc[VSUSP] |
| 340 | # endif |
| 341 | # if defined(VFLUSHO) && !defined(VDISCARD) |
| 342 | # define VDISCARD VFLUSHO |
| 343 | # endif |
| 344 | # ifndef VDISCARD |
| 345 | extern cc_t termFlushChar; |
| 346 | # else |
| 347 | # define termFlushChar new_tc.c_cc[VDISCARD] |
| 348 | # endif |
| 349 | # ifndef VWERASE |
| 350 | extern cc_t termWerasChar; |
| 351 | # else |
| 352 | # define termWerasChar new_tc.c_cc[VWERASE] |
| 353 | # endif |
| 354 | # ifndef VREPRINT |
| 355 | extern cc_t termRprntChar; |
| 356 | # else |
| 357 | # define termRprntChar new_tc.c_cc[VREPRINT] |
| 358 | # endif |
| 359 | # ifndef VLNEXT |
| 360 | extern cc_t termLiteralNextChar; |
| 361 | # else |
| 362 | # define termLiteralNextChar new_tc.c_cc[VLNEXT] |
| 363 | # endif |
| 364 | # ifndef VSTART |
| 365 | extern cc_t termStartChar; |
| 366 | # else |
| 367 | # define termStartChar new_tc.c_cc[VSTART] |
| 368 | # endif |
| 369 | # ifndef VSTOP |
| 370 | extern cc_t termStopChar; |
| 371 | # else |
| 372 | # define termStopChar new_tc.c_cc[VSTOP] |
| 373 | # endif |
| 374 | # ifndef VEOL |
| 375 | extern cc_t termForw1Char; |
| 376 | # else |
| 377 | # define termForw1Char new_tc.c_cc[VEOL] |
| 378 | # endif |
| 379 | # ifndef VEOL2 |
| 380 | extern cc_t termForw2Char; |
| 381 | # else |
| 382 | # define termForw2Char new_tc.c_cc[VEOL] |
| 383 | # endif |
| 384 | # ifndef VSTATUS |
| 385 | extern cc_t termAytChar; |
| 386 | #else |
| 387 | # define termAytChar new_tc.c_cc[VSTATUS] |
| 388 | #endif |
| 389 | |
| 390 | # if !defined(CRAY) || defined(__STDC__) |
| 391 | # define termEofCharp &termEofChar |
| 392 | # define termEraseCharp &termEraseChar |
| 393 | # define termIntCharp &termIntChar |
| 394 | # define termKillCharp &termKillChar |
| 395 | # define termQuitCharp &termQuitChar |
| 396 | # define termSuspCharp &termSuspChar |
| 397 | # define termFlushCharp &termFlushChar |
| 398 | # define termWerasCharp &termWerasChar |
| 399 | # define termRprntCharp &termRprntChar |
| 400 | # define termLiteralNextCharp &termLiteralNextChar |
| 401 | # define termStartCharp &termStartChar |
| 402 | # define termStopCharp &termStopChar |
| 403 | # define termForw1Charp &termForw1Char |
| 404 | # define termForw2Charp &termForw2Char |
| 405 | # define termAytCharp &termAytChar |
| 406 | # else |
| 407 | /* Work around a compiler bug */ |
| 408 | # define termEofCharp 0 |
| 409 | # define termEraseCharp 0 |
| 410 | # define termIntCharp 0 |
| 411 | # define termKillCharp 0 |
| 412 | # define termQuitCharp 0 |
| 413 | # define termSuspCharp 0 |
| 414 | # define termFlushCharp 0 |
| 415 | # define termWerasCharp 0 |
| 416 | # define termRprntCharp 0 |
| 417 | # define termLiteralNextCharp 0 |
| 418 | # define termStartCharp 0 |
| 419 | # define termStopCharp 0 |
| 420 | # define termForw1Charp 0 |
| 421 | # define termForw2Charp 0 |
| 422 | # define termAytCharp 0 |
| 423 | # endif |
| 424 | #endif |
| 425 | |
| 426 | |
| 427 | /* Ring buffer structures which are shared */ |
| 428 | |
| 429 | extern Ring |
| 430 | netoring, |
| 431 | netiring, |
| 432 | ttyoring, |
| 433 | ttyiring; |
| 434 | |
| 435 | /* Tn3270 section */ |
| 436 | #if defined(TN3270) |
| 437 | |
| 438 | extern int |
| 439 | HaveInput, /* Whether an asynchronous I/O indication came in */ |
| 440 | noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */ |
| 441 | noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */ |
| 442 | sigiocount, /* Count of SIGIO receptions */ |
| 443 | shell_active; /* Subshell is active */ |
| 444 | |
| 445 | extern char |
| 446 | *Ibackp, /* Oldest byte of 3270 data */ |
| 447 | Ibuf[], /* 3270 buffer */ |
| 448 | *Ifrontp, /* Where next 3270 byte goes */ |
| 449 | tline[], |
| 450 | *transcom; /* Transparent command */ |
| 451 | |
| 452 | extern void |
| 453 | settranscom P((int, char**)); |
| 454 | |
| 455 | extern int |
| 456 | shell P((int, char**)); |
| 457 | |
| 458 | extern void |
| 459 | inputAvailable P((void)); |
| 460 | #endif /* defined(TN3270) */ |