ed.term.c revision 83098
1/* $Header: /src/pub/tcsh/ed.term.c,v 1.26 2001/08/06 23:51:09 christos Exp $ */ 2/* 3 * ed.term.c: Low level terminal interface 4 */ 5/*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37#include "sh.h" 38#ifndef WINNT_NATIVE 39 40RCSID("$Id: ed.term.c,v 1.26 2001/08/06 23:51:09 christos Exp $") 41 42#include "ed.h" 43#include "ed.term.h" 44 45int didsetty = 0; 46ttyperm_t ttylist = { 47 { 48#if defined(POSIX) || defined(TERMIO) 49 { "iflag:", ICRNL, (INLCR|IGNCR) }, 50 { "oflag:", (OPOST|ONLCR), ONLRET }, 51 { "cflag:", 0, 0 }, 52 { "lflag:", (ISIG|ICANON|ECHO|ECHOE|ECHOCTL|IEXTEN), 53 (NOFLSH|ECHONL|EXTPROC|FLUSHO|IDEFAULT) }, 54#else /* GSTTY */ 55 { "nrmal:", (ECHO|CRMOD|ANYP), (CBREAK|RAW|LCASE|VTDELAY|ALLDELAY) }, 56 { "local:", (LCRTBS|LCRTERA|LCRTKIL), (LPRTERA|LFLUSHO) }, 57#endif /* POSIX || TERMIO */ 58 { "chars:", 0, 0 }, 59 }, 60 { 61#if defined(POSIX) || defined(TERMIO) 62 { "iflag:", (INLCR|ICRNL), IGNCR }, 63 { "oflag:", (OPOST|ONLCR), ONLRET }, 64 { "cflag:", 0, 0 }, 65 { "lflag:", ISIG, 66 (NOFLSH|ICANON|ECHO|ECHOK|ECHONL|EXTPROC|IEXTEN|FLUSHO| 67 IDEFAULT) }, 68#else /* GSTTY */ 69 { "nrmal:", (CBREAK|CRMOD|ANYP), (RAW|ECHO|LCASE|VTDELAY|ALLDELAY) }, 70 { "local:", (LCRTBS|LCRTERA|LCRTKIL), (LPRTERA|LFLUSHO) }, 71#endif /* POSIX || TERMIO */ 72 { "chars:", (C_SH(C_MIN)|C_SH(C_TIME)|C_SH(C_SWTCH)|C_SH(C_DSWTCH)| 73 C_SH(C_WERASE)|C_SH(C_REPRINT)|C_SH(C_SUSP)|C_SH(C_DSUSP)| 74 C_SH(C_EOF)|C_SH(C_EOL)|C_SH(C_DISCARD)|C_SH(C_PGOFF)| 75 C_SH(C_KILL2)|C_SH(C_PAGE)|C_SH(C_STATUS)|C_SH(C_LNEXT)), 76 0 } 77 }, 78 { 79#if defined(POSIX) || defined(TERMIO) 80 { "iflag:", 0, IXON | IXOFF }, 81 { "oflag:", 0, 0 }, 82 { "cflag:", 0, 0 }, 83 { "lflag:", 0, ISIG | IEXTEN }, 84#else /* GSTTY */ 85 { "nrmal:", RAW, CBREAK }, 86 { "local:", 0, 0 }, 87#endif /* POSIX || TERMIO */ 88 { "chars:", 0, 0 }, 89 } 90}; 91 92static struct tcshmodes { 93 char *m_name; 94#ifdef SOLARIS2 95 unsigned long m_value; 96#else /* !SOLARIS2 */ 97 int m_value; 98#endif /* SOLARIS2 */ 99 int m_type; 100} modelist[] = { 101#if defined(POSIX) || defined(TERMIO) 102 103# ifdef IGNBRK 104 { "ignbrk", IGNBRK, M_INPUT }, 105# endif /* IGNBRK */ 106# ifdef BRKINT 107 { "brkint", BRKINT, M_INPUT }, 108# endif /* BRKINT */ 109# ifdef IGNPAR 110 { "ignpar", IGNPAR, M_INPUT }, 111# endif /* IGNPAR */ 112# ifdef PARMRK 113 { "parmrk", PARMRK, M_INPUT }, 114# endif /* PARMRK */ 115# ifdef INPCK 116 { "inpck", INPCK, M_INPUT }, 117# endif /* INPCK */ 118# ifdef ISTRIP 119 { "istrip", ISTRIP, M_INPUT }, 120# endif /* ISTRIP */ 121# ifdef INLCR 122 { "inlcr", INLCR, M_INPUT }, 123# endif /* INLCR */ 124# ifdef IGNCR 125 { "igncr", IGNCR, M_INPUT }, 126# endif /* IGNCR */ 127# ifdef ICRNL 128 { "icrnl", ICRNL, M_INPUT }, 129# endif /* ICRNL */ 130# ifdef IUCLC 131 { "iuclc", IUCLC, M_INPUT }, 132# endif /* IUCLC */ 133# ifdef IXON 134 { "ixon", IXON, M_INPUT }, 135# endif /* IXON */ 136# ifdef IXANY 137 { "ixany", IXANY, M_INPUT }, 138# endif /* IXANY */ 139# ifdef IXOFF 140 { "ixoff", IXOFF, M_INPUT }, 141# endif /* IXOFF */ 142# ifdef IMAXBEL 143 { "imaxbel",IMAXBEL,M_INPUT }, 144# endif /* IMAXBEL */ 145# ifdef IDELETE 146 { "idelete",IDELETE,M_INPUT }, 147# endif /* IDELETE */ 148 149# ifdef OPOST 150 { "opost", OPOST, M_OUTPUT }, 151# endif /* OPOST */ 152# ifdef OLCUC 153 { "olcuc", OLCUC, M_OUTPUT }, 154# endif /* OLCUC */ 155# ifdef ONLCR 156 { "onlcr", ONLCR, M_OUTPUT }, 157# endif /* ONLCR */ 158# ifdef OCRNL 159 { "ocrnl", OCRNL, M_OUTPUT }, 160# endif /* OCRNL */ 161# ifdef ONOCR 162 { "onocr", ONOCR, M_OUTPUT }, 163# endif /* ONOCR */ 164# ifdef ONOEOT 165 { "onoeot", ONOEOT, M_OUTPUT }, 166# endif /* ONOEOT */ 167# ifdef ONLRET 168 { "onlret", ONLRET, M_OUTPUT }, 169# endif /* ONLRET */ 170# ifdef OFILL 171 { "ofill", OFILL, M_OUTPUT }, 172# endif /* OFILL */ 173# ifdef OFDEL 174 { "ofdel", OFDEL, M_OUTPUT }, 175# endif /* OFDEL */ 176# ifdef NLDLY 177 { "nldly", NLDLY, M_OUTPUT }, 178# endif /* NLDLY */ 179# ifdef CRDLY 180 { "crdly", CRDLY, M_OUTPUT }, 181# endif /* CRDLY */ 182# ifdef TABDLY 183 { "tabdly", TABDLY, M_OUTPUT }, 184# endif /* TABDLY */ 185# ifdef XTABS 186 { "xtabs", XTABS, M_OUTPUT }, 187# endif /* XTABS */ 188# ifdef BSDLY 189 { "bsdly", BSDLY, M_OUTPUT }, 190# endif /* BSDLY */ 191# ifdef VTDLY 192 { "vtdly", VTDLY, M_OUTPUT }, 193# endif /* VTDLY */ 194# ifdef FFDLY 195 { "ffdly", FFDLY, M_OUTPUT }, 196# endif /* FFDLY */ 197# ifdef PAGEOUT 198 { "pageout",PAGEOUT,M_OUTPUT }, 199# endif /* PAGEOUT */ 200# ifdef WRAP 201 { "wrap", WRAP, M_OUTPUT }, 202# endif /* WRAP */ 203 204# ifdef CIGNORE 205 { "cignore",CIGNORE,M_CONTROL }, 206# endif /* CBAUD */ 207# ifdef CBAUD 208 { "cbaud", CBAUD, M_CONTROL }, 209# endif /* CBAUD */ 210# ifdef CSTOPB 211 { "cstopb", CSTOPB, M_CONTROL }, 212# endif /* CSTOPB */ 213# ifdef CREAD 214 { "cread", CREAD, M_CONTROL }, 215# endif /* CREAD */ 216# ifdef PARENB 217 { "parenb", PARENB, M_CONTROL }, 218# endif /* PARENB */ 219# ifdef PARODD 220 { "parodd", PARODD, M_CONTROL }, 221# endif /* PARODD */ 222# ifdef HUPCL 223 { "hupcl", HUPCL, M_CONTROL }, 224# endif /* HUPCL */ 225# ifdef CLOCAL 226 { "clocal", CLOCAL, M_CONTROL }, 227# endif /* CLOCAL */ 228# ifdef LOBLK 229 { "loblk", LOBLK, M_CONTROL }, 230# endif /* LOBLK */ 231# ifdef CIBAUD 232 { "cibaud", CIBAUD, M_CONTROL }, 233# endif /* CIBAUD */ 234# ifdef CRTSCTS 235# ifdef CCTS_OFLOW 236 { "ccts_oflow",CCTS_OFLOW,M_CONTROL }, 237# else 238 { "crtscts",CRTSCTS,M_CONTROL }, 239# endif /* CCTS_OFLOW */ 240# endif /* CRTSCTS */ 241# ifdef CRTS_IFLOW 242 { "crts_iflow",CRTS_IFLOW,M_CONTROL }, 243# endif /* CRTS_IFLOW */ 244# ifdef MDMBUF 245 { "mdmbuf", MDMBUF, M_CONTROL }, 246# endif /* MDMBUF */ 247# ifdef RCV1EN 248 { "rcv1en", RCV1EN, M_CONTROL }, 249# endif /* RCV1EN */ 250# ifdef XMT1EN 251 { "xmt1en", XMT1EN, M_CONTROL }, 252# endif /* XMT1EN */ 253 254# ifdef ISIG 255 { "isig", ISIG, M_LINED }, 256# endif /* ISIG */ 257# ifdef ICANON 258 { "icanon", ICANON, M_LINED }, 259# endif /* ICANON */ 260# ifdef XCASE 261 { "xcase", XCASE, M_LINED }, 262# endif /* XCASE */ 263# ifdef ECHO 264 { "echo", ECHO, M_LINED }, 265# endif /* ECHO */ 266# ifdef ECHOE 267 { "echoe", ECHOE, M_LINED }, 268# endif /* ECHOE */ 269# ifdef ECHOK 270 { "echok", ECHOK, M_LINED }, 271# endif /* ECHOK */ 272# ifdef ECHONL 273 { "echonl", ECHONL, M_LINED }, 274# endif /* ECHONL */ 275# ifdef NOFLSH 276 { "noflsh", NOFLSH, M_LINED }, 277# endif /* NOFLSH */ 278# ifdef TOSTOP 279 { "tostop", TOSTOP, M_LINED }, 280# endif /* TOSTOP */ 281# ifdef ECHOCTL 282 { "echoctl",ECHOCTL,M_LINED }, 283# endif /* ECHOCTL */ 284# ifdef ECHOPRT 285 { "echoprt",ECHOPRT,M_LINED }, 286# endif /* ECHOPRT */ 287# ifdef ECHOKE 288 { "echoke", ECHOKE, M_LINED }, 289# endif /* ECHOKE */ 290# ifdef DEFECHO 291 { "defecho",DEFECHO,M_LINED }, 292# endif /* DEFECHO */ 293# ifdef FLUSHO 294 { "flusho", FLUSHO, M_LINED }, 295# endif /* FLUSHO */ 296# ifdef PENDIN 297 { "pendin", PENDIN, M_LINED }, 298# endif /* PENDIN */ 299# ifdef IEXTEN 300 { "iexten", IEXTEN, M_LINED }, 301# endif /* IEXTEN */ 302# ifdef NOKERNINFO 303 { "nokerninfo",NOKERNINFO,M_LINED }, 304# endif /* NOKERNINFO */ 305# ifdef ALTWERASE 306 { "altwerase",ALTWERASE,M_LINED }, 307# endif /* ALTWERASE */ 308# ifdef EXTPROC 309 { "extproc",EXTPROC,M_LINED }, 310# endif /* EXTPROC */ 311# ifdef IDEFAULT 312 { "idefault",IDEFAULT,M_LINED }, 313# endif /* IDEFAULT */ 314 315#else /* GSTTY */ 316 317# ifdef TANDEM 318 { "tandem", TANDEM, M_CONTROL }, 319# endif /* TANDEM */ 320# ifdef CBREAK 321 { "cbreak", CBREAK, M_CONTROL }, 322# endif /* CBREAK */ 323# ifdef LCASE 324 { "lcase", LCASE, M_CONTROL }, 325# endif /* LCASE */ 326# ifdef ECHO 327 { "echo", ECHO, M_CONTROL }, 328# endif /* ECHO */ 329# ifdef CRMOD 330 { "crmod", CRMOD, M_CONTROL }, 331# endif /* CRMOD */ 332# ifdef RAW 333 { "raw", RAW, M_CONTROL }, 334# endif /* RAW */ 335# ifdef ODDP 336 { "oddp", ODDP, M_CONTROL }, 337# endif /* ODDP */ 338# ifdef EVENP 339 { "evenp", EVENP, M_CONTROL }, 340# endif /* EVENP */ 341# ifdef ANYP 342 { "anyp", ANYP, M_CONTROL }, 343# endif /* ANYP */ 344# ifdef NLDELAY 345 { "nldelay",NLDELAY,M_CONTROL }, 346# endif /* NLDELAY */ 347# ifdef TBDELAY 348 { "tbdelay",TBDELAY,M_CONTROL }, 349# endif /* TBDELAY */ 350# ifdef XTABS 351 { "xtabs", XTABS, M_CONTROL }, 352# endif /* XTABS */ 353# ifdef CRDELAY 354 { "crdelay",CRDELAY,M_CONTROL }, 355# endif /* CRDELAY */ 356# ifdef VTDELAY 357 { "vtdelay",VTDELAY,M_CONTROL }, 358# endif /* VTDELAY */ 359# ifdef BSDELAY 360 { "bsdelay",BSDELAY,M_CONTROL }, 361# endif /* BSDELAY */ 362# ifdef CRTBS 363 { "crtbs", CRTBS, M_CONTROL }, 364# endif /* CRTBS */ 365# ifdef PRTERA 366 { "prtera", PRTERA, M_CONTROL }, 367# endif /* PRTERA */ 368# ifdef CRTERA 369 { "crtera", CRTERA, M_CONTROL }, 370# endif /* CRTERA */ 371# ifdef TILDE 372 { "tilde", TILDE, M_CONTROL }, 373# endif /* TILDE */ 374# ifdef MDMBUF 375 { "mdmbuf", MDMBUF, M_CONTROL }, 376# endif /* MDMBUF */ 377# ifdef LITOUT 378 { "litout", LITOUT, M_CONTROL }, 379# endif /* LITOUT */ 380# ifdef TOSTOP 381 { "tostop", TOSTOP, M_CONTROL }, 382# endif /* TOSTOP */ 383# ifdef FLUSHO 384 { "flusho", FLUSHO, M_CONTROL }, 385# endif /* FLUSHO */ 386# ifdef NOHANG 387 { "nohang", NOHANG, M_CONTROL }, 388# endif /* NOHANG */ 389# ifdef L001000 390 { "l001000",L001000,M_CONTROL }, 391# endif /* L001000 */ 392# ifdef CRTKIL 393 { "crtkil", CRTKIL, M_CONTROL }, 394# endif /* CRTKIL */ 395# ifdef PASS8 396 { "pass8", PASS8, M_CONTROL }, 397# endif /* PASS8 */ 398# ifdef CTLECH 399 { "ctlech", CTLECH, M_CONTROL }, 400# endif /* CTLECH */ 401# ifdef PENDIN 402 { "pendin", PENDIN, M_CONTROL }, 403# endif /* PENDIN */ 404# ifdef DECCTQ 405 { "decctq", DECCTQ, M_CONTROL }, 406# endif /* DECCTQ */ 407# ifdef NOFLSH 408 { "noflsh", NOFLSH, M_CONTROL }, 409# endif /* NOFLSH */ 410 411# ifdef LCRTBS 412 { "lcrtbs", LCRTBS, M_LOCAL }, 413# endif /* LCRTBS */ 414# ifdef LPRTERA 415 { "lprtera",LPRTERA,M_LOCAL }, 416# endif /* LPRTERA */ 417# ifdef LCRTERA 418 { "lcrtera",LCRTERA,M_LOCAL }, 419# endif /* LCRTERA */ 420# ifdef LTILDE 421 { "ltilde", LTILDE, M_LOCAL }, 422# endif /* LTILDE */ 423# ifdef LMDMBUF 424 { "lmdmbuf",LMDMBUF,M_LOCAL }, 425# endif /* LMDMBUF */ 426# ifdef LLITOUT 427 { "llitout",LLITOUT,M_LOCAL }, 428# endif /* LLITOUT */ 429# ifdef LTOSTOP 430 { "ltostop",LTOSTOP,M_LOCAL }, 431# endif /* LTOSTOP */ 432# ifdef LFLUSHO 433 { "lflusho",LFLUSHO,M_LOCAL }, 434# endif /* LFLUSHO */ 435# ifdef LNOHANG 436 { "lnohang",LNOHANG,M_LOCAL }, 437# endif /* LNOHANG */ 438# ifdef LCRTKIL 439 { "lcrtkil",LCRTKIL,M_LOCAL }, 440# endif /* LCRTKIL */ 441# ifdef LPASS8 442 { "lpass8", LPASS8, M_LOCAL }, 443# endif /* LPASS8 */ 444# ifdef LCTLECH 445 { "lctlech",LCTLECH,M_LOCAL }, 446# endif /* LCTLECH */ 447# ifdef LPENDIN 448 { "lpendin",LPENDIN,M_LOCAL }, 449# endif /* LPENDIN */ 450# ifdef LDECCTQ 451 { "ldecctq",LDECCTQ,M_LOCAL }, 452# endif /* LDECCTQ */ 453# ifdef LNOFLSH 454 { "lnoflsh",LNOFLSH,M_LOCAL }, 455# endif /* LNOFLSH */ 456 457#endif /* POSIX || TERMIO */ 458# if defined(VINTR) || defined(TIOCGETC) 459 { "intr", C_SH(C_INTR), M_CHAR }, 460# endif /* VINTR */ 461# if defined(VQUIT) || defined(TIOCGETC) 462 { "quit", C_SH(C_QUIT), M_CHAR }, 463# endif /* VQUIT */ 464# if defined(VERASE) || defined(TIOCGETP) 465 { "erase", C_SH(C_ERASE), M_CHAR }, 466# endif /* VERASE */ 467# if defined(VKILL) || defined(TIOCGETP) 468 { "kill", C_SH(C_KILL), M_CHAR }, 469# endif /* VKILL */ 470# if defined(VEOF) || defined(TIOCGETC) 471 { "eof", C_SH(C_EOF), M_CHAR }, 472# endif /* VEOF */ 473# if defined(VEOL) 474 { "eol", C_SH(C_EOL), M_CHAR }, 475# endif /* VEOL */ 476# if defined(VEOL2) 477 { "eol2", C_SH(C_EOL2), M_CHAR }, 478# endif /* VEOL2 */ 479# if defined(VSWTCH) 480 { "swtch", C_SH(C_SWTCH), M_CHAR }, 481# endif /* VSWTCH */ 482# if defined(VDSWTCH) 483 { "dswtch", C_SH(C_DSWTCH), M_CHAR }, 484# endif /* VDSWTCH */ 485# if defined(VERASE2) 486 { "erase2", C_SH(C_ERASE2), M_CHAR }, 487# endif /* VERASE2 */ 488# if defined(VSTART) || defined(TIOCGETC) 489 { "start", C_SH(C_START), M_CHAR }, 490# endif /* VSTART */ 491# if defined(VSTOP) || defined(TIOCGETC) 492 { "stop", C_SH(C_STOP), M_CHAR }, 493# endif /* VSTOP */ 494# if defined(VWERASE) || defined(TIOCGLTC) 495 { "werase", C_SH(C_WERASE), M_CHAR }, 496# endif /* VWERASE */ 497# if defined(VSUSP) || defined(TIOCGLTC) 498 { "susp", C_SH(C_SUSP), M_CHAR }, 499# endif /* VSUSP */ 500# if defined(VDSUSP) || defined(TIOCGLTC) 501 { "dsusp", C_SH(C_DSUSP), M_CHAR }, 502# endif /* VDSUSP */ 503# if defined(VREPRINT) || defined(TIOCGLTC) 504 { "reprint", C_SH(C_REPRINT),M_CHAR }, 505# endif /* WREPRINT */ 506# if defined(VDISCARD) || defined(TIOCGLTC) 507 { "discard", C_SH(C_DISCARD),M_CHAR }, 508# endif /* VDISCARD */ 509# if defined(VLNEXT) || defined(TIOCGLTC) 510 { "lnext", C_SH(C_LNEXT), M_CHAR }, 511# endif /* VLNEXT */ 512# if defined(VSTATUS) || defined(TIOCGPAGE) 513 { "status", C_SH(C_STATUS), M_CHAR }, 514# endif /* VSTATUS */ 515# if defined(VPAGE) || defined(TIOCGPAGE) 516 { "page", C_SH(C_PAGE), M_CHAR }, 517# endif /* VPAGE */ 518# if defined(VPGOFF) || defined(TIOCGPAGE) 519 { "pgoff", C_SH(C_PGOFF), M_CHAR }, 520# endif /* VPGOFF */ 521# if defined(VKILL2) 522 { "kill2", C_SH(C_KILL2), M_CHAR }, 523# endif /* VKILL2 */ 524# if defined(VBRK) || defined(TIOCGETC) 525 { "brk", C_SH(C_BRK), M_CHAR }, 526# endif /* VBRK */ 527# if defined(VMIN) 528 { "min", C_SH(C_MIN), M_CHAR }, 529# endif /* VMIN */ 530# if defined(VTIME) 531 { "time", C_SH(C_TIME), M_CHAR }, 532# endif /* VTIME */ 533 { NULL, 0, -1 }, 534}; 535 536/* 537 * If EAGAIN and/or EWOULDBLOCK are defined, we can't just return -1 in all 538 * situations where ioctl() does. 539 * 540 * On AIX 4.1.5 (and presumably some other versions and OSes), as you 541 * perform the manual test suite in the README, if you 'bg' vi immediately 542 * after suspending it, all is well, but if you wait a few seconds, 543 * usually ioctl() will return -1, which previously caused tty_setty() to 544 * return -1, causing Rawmode() to return -1, causing Inputl() to return 545 * 0, causing bgetc() to return -1, causing readc() to set doneinp to 1, 546 * causing process() to break out of the main loop, causing tcsh to exit 547 * prematurely. 548 * 549 * If ioctl()'s errno is EAGAIN/EWOULDBLOCK ("Resource temporarily 550 * unavailable"), apparently the tty is being messed with by the OS and we 551 * need to try again. In my testing, ioctl() was never called more than 552 * twice in a row. 553 * 554 * -- Dan Harkless <dan@wave.eng.uci.edu> 555 * 556 * So, I retry all ioctl's in case others happen to fail too (christos) 557 */ 558 559#if defined(EAGAIN) && defined(EWOULDBLOCK) && (EWOULDBLOCK != EAGAIN) 560# define OKERROR(e) (((e) == EAGAIN) || ((e) == EWOULDBLOCK) || ((e) == EINTR)) 561#elif defined(EGAIN) 562# define OKERROR(e) (((e) == EAGAIN) || ((e) == EINTR)) 563#elif defined(EWOULDBLOCK) 564# define OKERROR(e) (((e) == EWOULDBLOCK) || ((e) == EINTR)) 565#else 566# define OKERROR(e) ((e) == EINTR) 567#endif 568 569#ifdef __NetBSD__ 570#define KLUDGE (errno == ENOTTY && count < 10) 571#else 572#define KLUDGE 0 573#endif 574 575/* Retry a system call */ 576static int count; 577#define RETRY(x) \ 578 for (count = 0;; count++) \ 579 if ((x) == -1) { \ 580 if (OKERROR(errno) || KLUDGE) \ 581 continue; \ 582 else \ 583 return -1; \ 584 } \ 585 else \ 586 break \ 587 588/*ARGSUSED*/ 589void 590dosetty(v, t) 591 Char **v; 592 struct command *t; 593{ 594 struct tcshmodes *m; 595 char x, *d; 596 int aflag = 0; 597 Char *s; 598 int z = EX_IO; 599 char cmdname[BUFSIZE]; 600 601 USE(t); 602 setname(strcpy(cmdname, short2str(*v++))); 603 604 while (v && *v && v[0][0] == '-' && v[0][2] == '\0') 605 switch (v[0][1]) { 606 case 'a': 607 aflag++; 608 v++; 609 break; 610 case 'd': 611 v++; 612 z = ED_IO; 613 break; 614 case 'x': 615 v++; 616 z = EX_IO; 617 break; 618 case 'q': 619 v++; 620 z = QU_IO; 621 break; 622 default: 623 stderror(ERR_NAME | ERR_SYSTEM, short2str(v[0]), 624 CGETS(8, 1, "Unknown switch")); 625 break; 626 } 627 628 didsetty = 1; 629 if (!v || !*v) { 630 int i = -1; 631 int len = 0, st = 0, cu; 632 for (m = modelist; m->m_name; m++) { 633 if (m->m_type != i) { 634 xprintf("%s%s", i != -1 ? "\n" : "", 635 ttylist[z][m->m_type].t_name); 636 i = m->m_type; 637 st = len = strlen(ttylist[z][m->m_type].t_name); 638 } 639 640 x = (ttylist[z][i].t_setmask & m->m_value) ? '+' : '\0'; 641 x = (ttylist[z][i].t_clrmask & m->m_value) ? '-' : x; 642 643 if (x != '\0' || aflag) { 644 cu = strlen(m->m_name) + (x != '\0') + 1; 645 if (len + cu >= T_Cols) { 646 xprintf("\n%*s", st, ""); 647 len = st + cu; 648 } 649 else 650 len += cu; 651 if (x != '\0') 652 xprintf("%c%s ", x, m->m_name); 653 else 654 xprintf("%s ", m->m_name); 655 } 656 } 657 xputchar('\n'); 658 return; 659 } 660 while (v && (s = *v++)) { 661 switch (*s) { 662 case '+': 663 case '-': 664 x = *s++; 665 break; 666 default: 667 x = '\0'; 668 break; 669 } 670 d = short2str(s); 671 for (m = modelist; m->m_name; m++) 672 if (strcmp(m->m_name, d) == 0) 673 break; 674 if (!m->m_name) 675 stderror(ERR_NAME | ERR_SYSTEM, d, CGETS(8, 2, "Invalid argument")); 676 677 switch (x) { 678 case '+': 679 ttylist[z][m->m_type].t_setmask |= m->m_value; 680 ttylist[z][m->m_type].t_clrmask &= ~m->m_value; 681 break; 682 case '-': 683 ttylist[z][m->m_type].t_setmask &= ~m->m_value; 684 ttylist[z][m->m_type].t_clrmask |= m->m_value; 685 break; 686 default: 687 ttylist[z][m->m_type].t_setmask &= ~m->m_value; 688 ttylist[z][m->m_type].t_clrmask &= ~m->m_value; 689 break; 690 } 691 } 692} /* end dosetty */ 693 694int 695tty_getty(fd, td) 696 int fd; 697 ttydata_t *td; 698{ 699#ifdef POSIX 700 RETRY(tcgetattr(fd, &td->d_t)); 701#else /* TERMIO || GSTTY */ 702# ifdef TERMIO 703 RETRY(ioctl(fd, TCGETA, (ioctl_t) &td->d_t)); 704# else /* GSTTY */ 705# ifdef TIOCGETP 706 RETRY(ioctl(fd, TIOCGETP, (ioctl_t) &td->d_t)); 707# endif /* TIOCGETP */ 708# ifdef TIOCGETC 709 RETRY(ioctl(fd, TIOCGETC, (ioctl_t) &td->d_tc)); 710# endif /* TIOCGETC */ 711# ifdef TIOCGPAGE 712 RETRY(ioctl(fd, TIOCGPAGE, (ioctl_t) &td->d_pc)); 713# endif /* TIOCGPAGE */ 714# ifdef TIOCLGET 715 RETRY(ioctl(fd, TIOCLGET, (ioctl_t) &td->d_lb)); 716# endif /* TIOCLGET */ 717# endif /* TERMIO */ 718#endif /* POSIX */ 719 720#ifdef TIOCGLTC 721 RETRY(ioctl(fd, TIOCGLTC, (ioctl_t) &td->d_ltc)); 722#endif /* TIOCGLTC */ 723 724 return 0; 725} 726 727int 728tty_setty(fd, td) 729 int fd; 730 ttydata_t *td; 731{ 732#ifdef POSIX 733 RETRY(tcsetattr(fd, TCSADRAIN, &td->d_t)); 734#else 735# ifdef TERMIO 736 RETRY(ioctl(fd, TCSETAW, (ioctl_t) &td->d_t)); 737# else 738# ifdef TIOCSETN 739 RETRY(ioctl(fd, TIOCSETN, (ioctl_t) &td->d_t)); 740# endif /* TIOCSETN */ 741# ifdef TIOCGETC 742 RETRY(ioctl(fd, TIOCSETC, (ioctl_t) &td->d_tc)); 743# endif /* TIOCGETC */ 744# ifdef TIOCGPAGE 745 RETRY(ioctl(fd, TIOCSPAGE, (ioctl_t) &td->d_pc)); 746# endif /* TIOCGPAGE */ 747# ifdef TIOCLGET 748 RETRY(ioctl(fd, TIOCLSET, (ioctl_t) &td->d_lb)); 749# endif /* TIOCLGET */ 750# endif /* TERMIO */ 751#endif /* POSIX */ 752 753#ifdef TIOCGLTC 754 RETRY(ioctl(fd, TIOCSLTC, (ioctl_t) &td->d_ltc)); 755#endif /* TIOCGLTC */ 756 757 return 0; 758} 759 760void 761tty_getchar(td, s) 762 ttydata_t *td; 763 unsigned char *s; 764{ 765#ifdef TIOCGLTC 766 { 767 struct ltchars *n = &td->d_ltc; 768 769 s[C_SUSP] = n->t_suspc; 770 s[C_DSUSP] = n->t_dsuspc; 771 s[C_REPRINT] = n->t_rprntc; 772 s[C_DISCARD] = n->t_flushc; 773 s[C_WERASE] = n->t_werasc; 774 s[C_LNEXT] = n->t_lnextc; 775 } 776#endif /* TIOCGLTC */ 777 778#if defined(POSIX) || defined(TERMIO) 779 { 780# ifdef POSIX 781 struct termios *n = &td->d_t; 782# else 783 struct termio *n = &td->d_t; 784# endif /* POSIX */ 785 786# ifdef VINTR 787 s[C_INTR] = n->c_cc[VINTR]; 788# endif /* VINTR */ 789# ifdef VQUIT 790 s[C_QUIT] = n->c_cc[VQUIT]; 791# endif /* VQUIT */ 792# ifdef VERASE 793 s[C_ERASE] = n->c_cc[VERASE]; 794# endif /* VERASE */ 795# ifdef VKILL 796 s[C_KILL] = n->c_cc[VKILL]; 797# endif /* VKILL */ 798# ifdef VEOF 799 s[C_EOF] = n->c_cc[VEOF]; 800# endif /* VEOF */ 801# ifdef VEOL 802 s[C_EOL] = n->c_cc[VEOL]; 803# endif /* VEOL */ 804# ifdef VEOL2 805 s[C_EOL2] = n->c_cc[VEOL2]; 806# endif /* VEOL2 */ 807# ifdef VSWTCH 808 s[C_SWTCH] = n->c_cc[VSWTCH]; 809# endif /* VSWTCH */ 810# ifdef VDSWTCH 811 s[C_DSWTCH] = n->c_cc[VDSWTCH]; 812# endif /* VDSWTCH */ 813# ifdef VERASE2 814 s[C_ERASE2] = n->c_cc[VERASE2]; 815# endif /* VERASE2 */ 816# ifdef VSTART 817 s[C_START] = n->c_cc[VSTART]; 818# endif /* VSTART */ 819# ifdef VSTOP 820 s[C_STOP] = n->c_cc[VSTOP]; 821# endif /* VSTOP */ 822# ifdef VWERASE 823 s[C_WERASE] = n->c_cc[VWERASE]; 824# endif /* VWERASE */ 825# ifdef VSUSP 826 s[C_SUSP] = n->c_cc[VSUSP]; 827# endif /* VSUSP */ 828# ifdef VDSUSP 829 s[C_DSUSP] = n->c_cc[VDSUSP]; 830# endif /* VDSUSP */ 831# ifdef VREPRINT 832 s[C_REPRINT] = n->c_cc[VREPRINT]; 833# endif /* WREPRINT */ 834# ifdef VDISCARD 835 s[C_DISCARD] = n->c_cc[VDISCARD]; 836# endif /* VDISCARD */ 837# ifdef VLNEXT 838 s[C_LNEXT] = n->c_cc[VLNEXT]; 839# endif /* VLNEXT */ 840# ifdef VSTATUS 841 s[C_STATUS] = n->c_cc[VSTATUS]; 842# endif /* VSTATUS */ 843# ifdef VPAGE 844 s[C_PAGE] = n->c_cc[VPAGE]; 845# endif /* VPAGE */ 846# ifdef VPGOFF 847 s[C_PGOFF] = n->c_cc[VPGOFF]; 848# endif /* VPGOFF */ 849# ifdef VKILL2 850 s[C_KILL2] = n->c_cc[VKILL2]; 851# endif /* KILL2 */ 852# ifdef VMIN 853 s[C_MIN] = n->c_cc[VMIN]; 854# endif /* VMIN */ 855# ifdef VTIME 856 s[C_TIME] = n->c_cc[VTIME]; 857# endif /* VTIME */ 858 } 859 860#else /* SGTTY */ 861 862# ifdef TIOCGPAGE 863 { 864 struct ttypagestat *n = &td->d_pc; 865 866 s[C_STATUS] = n->tps_statc; 867 s[C_PAGE] = n->tps_pagec; 868 s[C_PGOFF] = n->tps_pgoffc; 869 } 870# endif /* TIOCGPAGE */ 871 872# ifdef TIOCGETC 873 { 874 struct tchars *n = &td->d_tc; 875 876 s[C_INTR] = n->t_intrc; 877 s[C_QUIT] = n->t_quitc; 878 s[C_START] = n->t_startc; 879 s[C_STOP] = n->t_stopc; 880 s[C_EOF] = n->t_eofc; 881 s[C_BRK] = n->t_brkc; 882 } 883# endif /* TIOCGETC */ 884 885# ifdef TIOCGETP 886 { 887 struct sgttyb *n = &td->d_t; 888 889 s[C_ERASE] = n->sg_erase; 890 s[C_KILL] = n->sg_kill; 891 } 892# endif /* TIOCGETP */ 893#endif /* !POSIX || TERMIO */ 894 895} /* tty_getchar */ 896 897 898void 899tty_setchar(td, s) 900 ttydata_t *td; 901 unsigned char *s; 902{ 903#ifdef TIOCGLTC 904 { 905 struct ltchars *n = &td->d_ltc; 906 907 n->t_suspc = s[C_SUSP]; 908 n->t_dsuspc = s[C_DSUSP]; 909 n->t_rprntc = s[C_REPRINT]; 910 n->t_flushc = s[C_DISCARD]; 911 n->t_werasc = s[C_WERASE]; 912 n->t_lnextc = s[C_LNEXT]; 913 } 914#endif /* TIOCGLTC */ 915 916#if defined(POSIX) || defined(TERMIO) 917 { 918# ifdef POSIX 919 struct termios *n = &td->d_t; 920# else 921 struct termio *n = &td->d_t; 922# endif /* POSIX */ 923 924# ifdef VINTR 925 n->c_cc[VINTR] = s[C_INTR]; 926# endif /* VINTR */ 927# ifdef VQUIT 928 n->c_cc[VQUIT] = s[C_QUIT]; 929# endif /* VQUIT */ 930# ifdef VERASE 931 n->c_cc[VERASE] = s[C_ERASE]; 932# endif /* VERASE */ 933# ifdef VKILL 934 n->c_cc[VKILL] = s[C_KILL]; 935# endif /* VKILL */ 936# ifdef VEOF 937 n->c_cc[VEOF] = s[C_EOF]; 938# endif /* VEOF */ 939# ifdef VEOL 940 n->c_cc[VEOL] = s[C_EOL]; 941# endif /* VEOL */ 942# ifdef VEOL2 943 n->c_cc[VEOL2] = s[C_EOL2]; 944# endif /* VEOL2 */ 945# ifdef VSWTCH 946 n->c_cc[VSWTCH] = s[C_SWTCH]; 947# endif /* VSWTCH */ 948# ifdef VDSWTCH 949 n->c_cc[VDSWTCH] = s[C_DSWTCH]; 950# endif /* VDSWTCH */ 951# ifdef VERASE2 952 n->c_cc[VERASE2] = s[C_ERASE2]; 953# endif /* VERASE2 */ 954# ifdef VSTART 955 n->c_cc[VSTART] = s[C_START]; 956# endif /* VSTART */ 957# ifdef VSTOP 958 n->c_cc[VSTOP] = s[C_STOP]; 959# endif /* VSTOP */ 960# ifdef VWERASE 961 n->c_cc[VWERASE] = s[C_WERASE]; 962# endif /* VWERASE */ 963# ifdef VSUSP 964 n->c_cc[VSUSP] = s[C_SUSP]; 965# endif /* VSUSP */ 966# ifdef VDSUSP 967 n->c_cc[VDSUSP] = s[C_DSUSP]; 968# endif /* VDSUSP */ 969# ifdef VREPRINT 970 n->c_cc[VREPRINT] = s[C_REPRINT]; 971# endif /* WREPRINT */ 972# ifdef VDISCARD 973 n->c_cc[VDISCARD] = s[C_DISCARD]; 974# endif /* VDISCARD */ 975# ifdef VLNEXT 976 n->c_cc[VLNEXT] = s[C_LNEXT]; 977# endif /* VLNEXT */ 978# ifdef VSTATUS 979 n->c_cc[VSTATUS] = s[C_STATUS]; 980# endif /* VSTATUS */ 981# ifdef VPAGE 982 n->c_cc[VPAGE] = s[C_PAGE]; 983# endif /* VPAGE */ 984# ifdef VPGOFF 985 n->c_cc[VPGOFF] = s[C_PGOFF]; 986# endif /* VPGOFF */ 987# ifdef VKILL2 988 n->c_cc[VKILL2] = s[C_KILL2]; 989# endif /* VKILL2 */ 990# ifdef VMIN 991 n->c_cc[VMIN] = s[C_MIN]; 992# endif /* VMIN */ 993# ifdef VTIME 994 n->c_cc[VTIME] = s[C_TIME]; 995# endif /* VTIME */ 996 } 997 998#else /* GSTTY */ 999 1000# ifdef TIOCGPAGE 1001 { 1002 struct ttypagestat *n = &td->d_pc; 1003 1004 n->tps_length = 0; 1005 n->tps_lpos = 0; 1006 n->tps_statc = s[C_STATUS]; 1007 n->tps_pagec = s[C_PAGE]; 1008 n->tps_pgoffc = s[C_PGOFF]; 1009 n->tps_flag = 0; 1010 } 1011# endif /* TIOCGPAGE */ 1012 1013# ifdef TIOCGETC 1014 { 1015 struct tchars *n = &td->d_tc; 1016 n->t_intrc = s[C_INTR]; 1017 n->t_quitc = s[C_QUIT]; 1018 n->t_startc = s[C_START]; 1019 n->t_stopc = s[C_STOP]; 1020 n->t_eofc = s[C_EOF]; 1021 n->t_brkc = s[C_BRK]; 1022 } 1023# endif /* TIOCGETC */ 1024 1025# ifdef TIOCGETP 1026 { 1027 struct sgttyb *n = &td->d_t; 1028 1029 n->sg_erase = s[C_ERASE]; 1030 n->sg_kill = s[C_KILL]; 1031 } 1032# endif /* TIOCGETP */ 1033#endif /* !POSIX || TERMIO */ 1034 1035} /* tty_setchar */ 1036 1037speed_t 1038tty_getspeed(td) 1039 ttydata_t *td; 1040{ 1041 speed_t spd; 1042 1043#ifdef POSIX 1044 if ((spd = cfgetispeed(&td->d_t)) == 0) 1045 spd = cfgetospeed(&td->d_t); 1046#else /* ! POSIX */ 1047# ifdef TERMIO 1048# ifdef CBAUD 1049 spd = td->d_t.c_cflag & CBAUD; 1050# else 1051 spd = 0; 1052# endif 1053# else /* SGTTY */ 1054 spd = td->d_t.sg_ispeed; 1055# endif /* TERMIO */ 1056#endif /* POSIX */ 1057 1058 return spd; 1059} /* end tty_getspeed */ 1060 1061int 1062tty_gettabs(td) 1063 ttydata_t *td; 1064{ 1065#if defined(POSIX) || defined(TERMIO) 1066 return ((td->d_t.c_oflag & TAB3) == TAB3) ? 0 : 1; 1067#else /* SGTTY */ 1068 return (td->d_t.sg_flags & XTABS) == XTABS ? 0 : 1; 1069#endif /* POSIX || TERMIO */ 1070} /* end tty_gettabs */ 1071 1072int 1073tty_geteightbit(td) 1074 ttydata_t *td; 1075{ 1076#if defined(POSIX) || defined(TERMIO) 1077 return (td->d_t.c_cflag & CSIZE) == CS8; 1078#else /* SGTTY */ 1079 return td->d_lb & (LPASS8 | LLITOUT); 1080#endif /* POSIX || TERMIO */ 1081} /* end tty_geteightbit */ 1082 1083int 1084tty_cooked_mode(td) 1085 ttydata_t *td; 1086{ 1087#if defined(POSIX) || defined(TERMIO) 1088 return (td->d_t.c_lflag & ICANON); 1089#else /* SGTTY */ 1090 return !(td->d_t.sg_flags & (RAW | CBREAK)); 1091#endif /* POSIX || TERMIO */ 1092} /* end tty_cooked_mode */ 1093 1094#ifdef _IBMR2 1095void 1096tty_setdisc(fd, dis) 1097 int fd; 1098 int dis; 1099{ 1100 static bool edit_discipline = 0; 1101 static union txname tx_disc; 1102 extern char strPOSIX[]; 1103 1104 switch (dis) { 1105 case EX_IO: 1106 if (edit_discipline) { 1107 if (ioctl(fd, TXSETLD, (ioctl_t) & tx_disc) == -1) 1108 return; 1109 edit_discipline = 0; 1110 } 1111 return; 1112 1113 case ED_IO: 1114 tx_disc.tx_which = 0; 1115 if (ioctl(fd, TXGETLD, (ioctl_t) & tx_disc) == -1) 1116 return; 1117 if (strcmp(tx_disc.tx_name, strPOSIX) != 0) { 1118 edit_discipline = 1; 1119 if (ioctl(fd, TXSETLD, (ioctl_t) strPOSIX) == -1) 1120 return; 1121 } 1122 return; 1123 1124 default: 1125 return; 1126 } 1127} /* end tty_setdisc */ 1128#endif /* _IBMR2 */ 1129 1130#ifdef DEBUG_TTY 1131static void 1132tty_printchar(s) 1133 unsigned char *s; 1134{ 1135 struct tcshmodes *m; 1136 int i; 1137 1138 for (i = 0; i < C_NCC; i++) { 1139 for (m = modelist; m->m_name; m++) 1140 if (m->m_type == M_CHAR && C_SH(i) == m->m_value) 1141 break; 1142 if (m->m_name) 1143 xprintf("%s ^%c ", m->m_name, s[i] + 'A' - 1); 1144 if (i % 5 == 0) 1145 xputchar('\n'); 1146 } 1147 xputchar('\n'); 1148} 1149#endif /* DEBUG_TTY */ 1150#else /* WINNT_NATIVE */ 1151int 1152tty_cooked_mode(td) 1153 void *td; 1154{ 1155 return do_nt_check_cooked_mode(); 1156} 1157#endif /* !WINNT_NATIVE */ 1158